CN219976178U

CN219976178U - LED lighting equipment

Info

Publication number: CN219976178U
Application number: CN202221399841.0U
Authority: CN
Inventors: 王名斌; 张志超; 江涛; 陈振坤; 张东梅
Original assignee: Jiaxing Super Lighting Electric Appliance Co Ltd
Current assignee: Jiaxing Super Lighting Electric Appliance Co Ltd
Priority date: 2021-06-08
Filing date: 2022-06-07
Publication date: 2023-11-07
Anticipated expiration: 2032-06-07

Abstract

The invention provides an LED lighting device, which is characterized by comprising: a light source carrier; a light emitting unit fixed to the light source carrier; and an optical member which is covered on or at least partially covered on the light-emitting unit.

Description

LED lighting equipment

Technical Field

The invention belongs to the technical field of LED lighting devices, and particularly relates to LED lighting equipment.

Background

LED lighting is widely used because of its energy saving, long life, etc. LED lamps and lanterns among the prior art, common include flat board lamp and grille lamp.

The flat lamp in the prior art generally comprises a lamp strip, a bottom frame, a power supply, a light guide plate and a diffusion plate, wherein the lamp strip is arranged at the side part of the bottom frame so as to provide lateral light, and the light emitted by the lamp strip is emitted from the diffusion plate after passing through the light guide plate. The prior art flat lamp has the following disadvantages: the power supply of the flat lamp is arranged on the back of the bottom frame, so that the height space is additionally occupied, and the control of the height of the flat lamp is not facilitated; after passing through the light guide plate and the diffusion plate, the light emitted by the light bar has larger light loss, so that the light emitting efficiency of the flat plate lamp is lower; the light guide plate has higher cost, is unfavorable for the cost control of the flat lamp, and has more common glare control.

The grille lamp in the prior art comprises a bottom frame, a light source (the light source can adopt a light bar, a fluorescent tube or an LED tube) and a grille, wherein the light source is fixed on the bottom frame, and the grille is arranged on the light emitting side of the light source. The grille lamp of the prior art has the following disadvantages: the power supply is arranged on the back of the bottom frame, so that the height space is additionally occupied, and the control of the height of the flat lamp is not facilitated; the mode of arranging the grille is not beneficial to the height control of the grille lamp, so that the packaging and transportation cost is increased; the cost of the grille is higher, which is not beneficial to the cost control of the whole lamp.

In view of the above, how to design the LED lighting device to solve the problem of glare is a technical problem to be solved by those skilled in the art in view of the shortcomings and drawbacks of the LED lighting device in the prior art.

Disclosure of Invention

The abstract herein describes many embodiments of the invention. The terminology is used to describe only some of the embodiments disclosed in this specification (whether or not in the claims), and is not a complete description of all possible embodiments. Certain embodiments described above as various features or aspects of the invention may be combined in different ways to form an LED lighting device or a portion thereof.

Embodiments of the present invention provide a new LED lighting device, and features of various aspects, to solve the above-mentioned problems.

An embodiment of the present invention provides an LED lighting apparatus, including:

a light source carrier;

a light emitting unit fixed to the light source carrier; and

and the optical component is covered on or at least partially covered on the light-emitting unit.

The light source carrier comprises a base and end covers arranged at two ends of the base, wherein the end covers comprise wall parts, the wall parts define a first accommodating space, and a power supply of the LED lighting equipment is arranged in the first accommodating space.

Compared with the prior art, the invention has the following outstanding and beneficial technical effects: the power supply is arranged in the end cover, so that the overall height dimension of the LED lighting equipment can be reduced.

Drawings

Fig. 1A is a schematic front view of an LED lighting device according to a first embodiment of the present invention;

fig. 1B is a schematic perspective view of an LED lighting device according to a first embodiment of the present invention;

FIG. 1C is a schematic perspective view of a first embodiment of the LED lighting apparatus of the present invention with one side end cap removed;

FIG. 1D is an enlarged view at A in FIG. 3;

FIG. 1E is a schematic perspective view of an end cap according to a first embodiment of the present invention;

FIG. 1F is a schematic front view of a threading unit of an end cap of a first embodiment of the present invention;

Fig. 1G is a schematic view of the light emission of the LED lighting device according to the first embodiment of the present invention;

fig. 1H is a second schematic light emitting diagram of the LED lighting device according to the first embodiment of the present invention;

fig. 2A is a schematic front view of an LED lighting device in a second embodiment of the invention;

fig. 2B is a schematic perspective view of an LED lighting device according to a second embodiment of the present invention;

fig. 2C is a schematic side view of a light emitting unit according to a second embodiment of the present invention;

fig. 2D is an enlarged view at B in fig. 2B;

fig. 2E is a schematic perspective view of a LED lighting device with a base removed according to a second embodiment of the present invention;

fig. 2F is an enlarged view at C in fig. 2E;

fig. 2G is an enlarged view at D in fig. 2E;

fig. 3A is a schematic perspective view of an LED lighting device according to a third embodiment of the present invention;

FIG. 3B is a schematic perspective view of FIG. 3A with the optical components removed;

FIG. 3C is an enlarged view at E in FIG. 3B;

fig. 3D is a schematic perspective view of a second embodiment of an LED lighting device according to the present invention;

fig. 3E is a schematic perspective view of an LED lighting device according to a third embodiment of the present invention;

fig. 4A is a schematic perspective view of an LED lighting device in a fourth embodiment of the present invention;

FIG. 4B is a schematic diagram of the cooperation of the light emitting unit and the mounting unit;

fig. 5A is a schematic perspective view of an LED lighting device in a fifth embodiment of the present invention;

FIG. 5B is a schematic perspective view of FIG. 5A with the optical components removed;

fig. 6A is a schematic front view of an LED lighting device according to a sixth embodiment of the present invention;

fig. 6B is a schematic cross-sectional view of an LED lighting device according to a sixth embodiment of the present invention;

fig. 6C is an enlarged view at F in fig. 6B;

FIG. 6D is a schematic diagram showing the cooperation of the light emitting unit and the optical member;

FIG. 6E is a partial schematic view of an optical component;

fig. 6F is a perspective view of an LED lighting device in a sixth embodiment;

fig. 6G is a schematic perspective view of a second LED lighting device in a sixth embodiment;

FIG. 6H is a schematic illustration of FIG. 6F with the optical components removed;

FIG. 6I is an enlarged view at G in FIG. 6H;

fig. 6J is a perspective view of the LED lighting device of the sixth embodiment with the power removed;

FIG. 6K is an enlarged schematic view at H of FIG. 6J;

fig. 6L is a perspective view of a schematic power supply box with power removed from the LED lighting device in the sixth embodiment;

FIG. 6M is an enlarged view at I of FIG. 6L;

fig. 6N is a schematic perspective view of a power supply of a sixth embodiment;

FIG. 6O is a schematic illustration of FIG. 6N with the patch panel removed;

fig. 6P is a perspective view of a power supply-removed isolation tube of a sixth embodiment;

FIG. 6R is a second schematic diagram of the cooperation of the light emitting unit and the optical member;

Fig. 6S is an enlarged view at J in fig. 6L;

FIG. 6T is a partial schematic view of the mating of the optical member with the base;

FIG. 6U is a partial schematic view of the mating of a light panel with a wire;

FIG. 6V is a schematic perspective view of an LED lighting device with a hard light panel removed from the power supply;

FIG. 6W is a schematic perspective view of a power supply;

FIG. 6X is a schematic perspective view of the patch panel of FIG. 6W with the patch panel removed;

FIG. 6Y is a schematic perspective view of a patch panel;

FIG. 6Z is an enlarged view at K in FIG. 6V;

fig. 7A is a schematic perspective view of an LED lighting device according to a seventh embodiment of the present invention;

fig. 7B is a schematic perspective view of a seventh embodiment of an LED lighting device according to the present invention;

fig. 7C is a schematic sectional structure of an LED lighting device of a seventh embodiment of the present invention;

FIG. 7D is an enlarged schematic view at L in FIG. 7C;

fig. 7E is an exploded structural schematic view of an LED lighting device of a seventh embodiment of the present invention;

FIG. 7F is a schematic perspective view of an LED lighting device according to an embodiment, showing a set of receiving spaces;

FIG. 7G is a schematic perspective view of an LED lighting device according to an embodiment, showing four sets of receiving spaces;

fig. 8A is a schematic perspective view of an LED lighting device according to an eighth embodiment of the present invention;

fig. 8B is a schematic perspective view of a second embodiment of an LED lighting device according to the present invention;

FIG. 8C is a schematic perspective view of FIG. 8A with the optical components removed;

FIG. 8D is an enlarged view at M in FIG. 8C;

FIG. 8E is an enlarged view of N in FIG. 8C;

fig. 8F is an enlarged view at O in fig. 8B;

fig. 9A is a schematic diagram showing a front view of an LED lighting device in a ninth embodiment of the present invention;

FIG. 9B is a rear view of FIG. 9A;

fig. 9C is a schematic sectional structure of an LED lighting device in a ninth embodiment of the present invention;

fig. 9D is an enlarged view at P in fig. 9C;

fig. 10A is a schematic front view of an LED lighting device according to a tenth embodiment of the present invention;

fig. 10B is a schematic perspective view of an LED lighting device according to a tenth embodiment of the present invention;

fig. 10C is a schematic perspective view of an LED lighting device with a panel removed according to a tenth embodiment of the present invention;

fig. 10D is a schematic cross-sectional view of an LED lighting device of a tenth embodiment of the present invention;

FIG. 10E is an enlarged schematic view at Q in FIG. 1D;

FIG. 10F is an enlarged schematic view at R in FIG. 1D;

fig. 10G is a schematic structural view of a threading part according to a tenth embodiment of the present invention;

fig. 10H is a schematic perspective view of a base of an LED lighting device according to a tenth embodiment of the present invention;

fig. 10I is a schematic diagram showing a perspective structure of a base of an LED lighting device according to a tenth embodiment of the present invention;

Fig. 10J is a state diagram of the stacking of the LED lighting devices of the tenth embodiment of the present invention;

fig. 10K is a schematic perspective view of a light emitting unit according to a tenth embodiment of the present invention;

fig. 10L is a schematic side view of a light emitting unit of a tenth embodiment of the present invention;

fig. 10M is a schematic perspective view of a first member according to a tenth embodiment of the present invention;

fig. 10N is a schematic perspective view of a second member according to a tenth embodiment of the present invention;

FIG. 11A is a schematic front view of an LED lighting device in another embodiment of the invention;

FIG. 11B is a schematic side view of an LED lighting device according to another embodiment of the present invention;

FIG. 11C is a schematic perspective view of an LED lighting device according to another embodiment of the present invention;

fig. 12A is a schematic front view of an LED lamp according to an eleventh embodiment of the present invention;

fig. 12B is a schematic perspective view of an LED lamp according to an eleventh embodiment of the present invention;

fig. 12C is a second perspective view of an LED lamp according to an eleventh embodiment of the present invention;

FIG. 12D is a schematic diagram of a three-dimensional structure of an LED lamp with the photovoltaic module removed;

fig. 12E is an enlarged view at S in fig. 12C;

FIG. 12F is a schematic diagram showing a perspective structure of an LED lamp with the photovoltaic module removed;

FIG. 12G is a schematic diagram showing a three-dimensional structure of the photovoltaic module and the wiring unit when the photovoltaic module is assembled;

Fig. 12H is an enlarged view at T in fig. 12C;

fig. 12I is a schematic perspective view of the wiring unit;

FIG. 12J is a schematic cross-sectional structural view of an LED lamp according to an embodiment of the present invention;

FIG. 12K is an enlarged view at U in FIG. 12J;

FIG. 12L is a schematic diagram showing the cooperation of the light emitting unit and the optical member;

FIG. 12M is a schematic illustration of the light emission of the light emitting unit of the LED lamp;

fig. 12N is a second schematic light emitting diagram of the light emitting unit of the LED lamp.

Detailed Description

Embodiments of the present invention will now be described more fully hereinafter with reference to the accompanying drawings, in which embodiments of the invention are shown. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. Like reference symbols in the drawings indicate like elements.

It will be understood that, although the terms first, second, etc. may be used herein to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another element. For example, a first element could be termed a second element, and, similarly, a second element could be termed a first element, without departing from the scope of the present invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

It will be understood that when an element such as a layer, region or substrate is referred to as being "on" or extending "onto" another element, it can be directly on or extend directly onto the other element or intervening elements may also be present. In contrast, when an element is referred to as being "directly on" or extending "directly onto" another element, there are no intervening elements present. It will also be understood that when an element is referred to as being "connected" or "coupled" to another element, it can be directly connected or coupled to the other element or intervening elements may be present. In contrast, when an element is referred to as being "directly connected" or "directly coupled" to another element, there are no intervening elements present.

Relative terms such as "below" or "above" or "upper" or "lower" or "horizontal" or "vertical" may be used herein to describe one element, layer or region's relationship to another element, layer or region as illustrated in the figures. It will be understood that these terms are intended to encompass different orientations of the device in addition to the orientation depicted in the figures. In the present invention, the terms "vertical", "horizontal", "parallel" are defined as: including + -10% cases based on standard definition. For example, vertical generally refers to an included angle of 90 degrees with respect to the reference line, but in the present invention, vertical refers to a case including 80 degrees to 100 degrees or less.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises," "comprising," "includes," and/or "including," when used herein, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.

Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. It will be further understood that terms used herein should be interpreted as having a meaning that is consistent with their meaning in the context of this specification and the relevant art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.

Unless explicitly stated otherwise, comparative terms (such as "less than" and "greater than") are intended to cover equivalent concepts. As an example, "less than" may mean not only "less than" in the most strict mathematical sense, but also "less than or equal to".

As shown in fig. 1A to 1F, the present invention provides, in a first embodiment, an LED lighting apparatus including: a light source carrier 1, a light emitting unit 2, an optical member 3 and a power supply 4. Wherein the light emitting unit 2 is fixed on the light source carrier 1, and the optical member 3 is covered or at least partially covered on the light emitting unit 2, so that at least a part or all of the light emitted by the light emitting unit 2 is emitted from the LED lighting device through the optical member 3 when the light emitting unit is lighted. The light emitting unit 2 in this embodiment is fixed to the light source carrier in a non-detachable form (non-replaceable) (and thus may be referred to as an integrated lighting device).

The light source carrier 1 in this embodiment includes a base 11 and end caps 12 disposed at both ends of the base 11. The base 11 defines a mounting surface 111, the lighting unit 2 being fixed to said mounting surface 111. Further, the light emitting unit 2 includes a substrate 21 and a light emitter 22, the light emitter 22 is fixed on the substrate 21, and the light emitter 22 may be an LED lamp bead. The substrate 21 is attached to the mounting surface 111, for example, the substrate 21 is adhered to the mounting surface 111 by using glue, or the mounting surface 111 is provided with a mounting structure, so that the substrate 21 is attached to the mounting surface 11 in a clamping, fastening, screwing, magnetic attraction, or the like manner. In this embodiment, the base 11 is made of metal, and after the light emitting unit 2 is fixed on the mounting surface 111, the light emitting unit 2 and the base 11 form a heat conduction path. Thus, the heat generated when the light emitting unit 2 is turned on can be conducted to the base 11, and the heat is dissipated through the base 11. The mounting surface 111 in the present embodiment is configured to have a reflection function. Specifically, the mounting surface 111 may be provided with a light-reflecting layer (e.g., white paint) so as to have a reflective function. In other embodiments, the end cap described above may not be provided, that is, the light source carrier 1 is integrally formed with the base 11. At this time, a reinforcing member may be provided on the base 11 (e.g., a reinforcing structure such as a reinforcing rib is directly formed on the base 11, or a reinforcing member is additionally provided on the base 11) to increase the structural strength of the base 11. In this embodiment, the power source 4 would be disposed on the base 11, such as on the back or front of the base 11, due to the elimination of the end cap.

The end cap 12 in this embodiment is fixed to the base 11 by a fixing structure. Specifically, the end cap 12 may be fastened to the base 11 by means of a fastening, or a bolt.

The end cap 12 in this embodiment includes a wall portion 121, and the wall portion 121 defines a first accommodating space 1211. The power supply 4 is disposed in the first accommodation space 1211. The overall height dimension of the LED lighting device can be reduced as compared to the case where the power source is provided on the back surface of the base 11 (opposite side of the base 11 from the light emitting unit 2) and the power source is provided in the end cap 12 (i.e., in the first accommodation space 1211). In this embodiment, the height dimension of the LED lighting device is less than 30mm. Further, the end cap 12 in the present embodiment does not exceed the height space defined by the base 11 in the height direction of the LED lighting device (i.e., the upper end and the lower end of the base 11 in the height direction of the LED lighting device). At least a part of the wall portion 121 in the present embodiment protrudes toward the inside (inside in the first direction X) of the LED lighting device to form the first accommodation space 1211 therein. The end cap 12 in this embodiment is constructed as a unitary structure.

The wall portion 121 in the present embodiment further defines a second accommodation space 1212, and the second accommodation space 1212 communicates with the first accommodation space 1211. The second accommodating space 1212 extends along a second direction Y. The light emitting unit 2 and the power source 4 in this embodiment are connected through an electrical connection unit, one end of the electrical connection unit is connected to the light emitting unit 2, the other end of the electrical connection unit is connected to the power source 4, and the electrical connection unit is at least partially located in the second accommodating space 1211, so as to achieve hidden routing. The electrical connection unit in this embodiment is a wire or a flexible connection board (such as an FPC board). The width of the first accommodation space 1211 in the first direction X is larger than the width of the second accommodation space 1212 in the first direction X in the present embodiment, and thus, the light emitting units 2 may have more spaces arranged in the first direction X (e.g., increasing the number of light emitting bodies 22 or the interval between the light emitting bodies 22).

The light emitting units 2 in the present embodiment are arranged in two groups, and the two sides of the first accommodation space 1211 of the base 12 are respectively provided with the second accommodation space 1212 for wiring of the two groups of light emitting units 2.

In this embodiment, the end portion of the substrate 21 of the light emitting unit 2 enters the second accommodating space 1212, and the electrical connection units are all located in the second accommodating space 1212 and/or the first accommodating space 1211. At least one light emitter 22 in the present embodiment is located in the second accommodating space 1212, and when the light emitter 22 located in the second accommodating space 1212 is lighted, at least part of the light emitted by the light emitter is emitted through the end cover 12, so as to avoid forming a dark area at the end cover 12.

In this embodiment, the terminal may further include a terminal disposed in one of the end caps 12. The connection terminals may be disposed in the first accommodation space 1211 of the same end cap 12 with the power supply 4, or may be disposed in the first accommodation spaces 1211 of different end caps 12. In this embodiment, the power source 4 is disposed in the first accommodating space 1211 of one end cap 12, and the connection terminal is disposed in the first accommodating space 1211 of the other end cap 12. The connection terminal in the present embodiment is configured to be connected to the light emitting unit 2 or to an external power source.

The connecting terminal in the embodiment is connected with the power supply through a wire. The wire may be disposed along the mounting surface 111 with both ends thereof respectively entering the first receiving spaces 1211 of the end caps 12 of both sides. Further, the LED lighting device in this embodiment further includes a threading unit 5, the threading unit 5 has a threading hole 51, the threading hole 51 extends along the first direction X, and the wire is threaded in the threading hole 51 of the threading unit 5.

The two ends of the threading unit 5 in the present embodiment can respectively enter the first accommodating spaces 1211 of the two sets of end caps 12, so that the wires are not exposed. In this embodiment, the threading unit 5 has a bottom 52, and the bottom 52 is attached to the mounting surface 111. The threading unit 5 may be fixed to the mounting surface 111 by the bottom 52 thereof, or both ends of the threading unit 5 may be fixed by the end caps 12 so as to be substantially attached to the mounting surface 111. The threading unit 5 in this embodiment can also increase the strength of the base 11 and limit the twisting deformation thereof. In other embodiments, the threading unit 5 may be disposed on the other side of the base 11 opposite to the light emitting unit 2. In other embodiments, the threading unit may be omitted when the wires are routed along the back of the base 11 (along the other side of the base 11 with respect to the light emitting unit 2). But the wires run along the back of the base 11, which additionally increases the overall height of the LED lighting device.

The optical member 3 in the present embodiment is attached to the mounting surface 111. Further, the optical member 3 in the present embodiment may be directly fixed to the mounting surface 111. In one embodiment, the optical member 3 is directly adhered to the mounting surface 111. In one embodiment, the optical member 3 is secured to the mounting surface 111 by a securing structure, such as by bolts, snaps, or the like. In one embodiment, the two ends of the optical member 3 are pressed against the mounting surface 111 by two end caps 12.

In the present embodiment, the optical member 3 is configured to control the light emitting angle and the light emitting uniformity of the LED lighting apparatus. For example, when the light emitted when the light emitting unit 2 is lighted is emitted from the LED lighting device via the optical member 3, the light emitting angle of the LED lighting device is controlled to 80 degrees to 130 degrees. Further, when the light emitted from the light emitting unit 2 is lighted and emitted from the LED lighting device through the optical member 3, the light emitting angle of the LED lighting device is controlled to be 90 degrees to 120 degrees. Further, when the light emitted from the light emitting unit 2 is lighted and emitted from the LED lighting device through the optical member 3, the light emitting angle of the LED lighting device is controlled to be 90 degrees to 100 degrees.

Referring to fig. 1B, 1C and 1G, in the present embodiment, in order to control the uniformity of light emitted from the LED lighting device, the ratio of the illuminance of the light emitting unit 2 in a first area a to the average illuminance of the light emitting unit in a second area B is greater than 0.3, 0.4, 0.5, 0.6, 0.7, 0.8 or 0.9 and less than 2. In some embodiments, the ratio of the illuminance in a first area a to the average illuminance in a second area B is greater than 0.5 and less than 1.5. In some embodiments, the ratio of the illuminance in a first area a to the average illuminance in a second area B is greater than 0.7 and less than 1.3. Wherein the first area A and the second area B are positioned on the same plane. The first area a and the second area B are both located in a third area C (the third area C is located in the same plane with the first area a and the second area B), and the beam angle C corresponding to the third area C is 90 degrees, 80 degrees, 60 degrees or 50 degrees. The beam angle c in this embodiment may be smaller than the light emission angle of the LED lighting apparatus. In this embodiment, the light uniformity is considered by the illuminance difference within the range of 50 degrees of the beam angle, so that the beam angle corresponding to the third area C is 50 degrees. The first region a and the second region B may be any regions within the third region C. It should be noted that the beam angle a referred to herein is not an angle formed by the boundary line of the light range. The center or circle center of the third area C in this embodiment corresponds to the LED lighting device, that is, when the LED lighting device is projected onto the third area C along the optical axis D, the position of the LED lighting device falls or approximately falls on the center or circle center of the third area C. In this embodiment, the plane in which the first area a and the second area B are located is perpendicular or substantially perpendicular to the optical axis D.

Referring to fig. 1B, 1C and 1H, in an embodiment, to control the uniformity of light output from the LED lighting device, the ratio of the illuminance of the light emitting unit 2 in a first area a to the average illuminance in a second area B is greater than 0.3, 0.4, 0.5, 0.6, 0.7, 0.8 or 0.9 and less than 2. In some embodiments, the ratio of the illuminance in a first area a to the average illuminance in a second area B is greater than 0.5 and less than 1.5. In some embodiments, the ratio of the illuminance in a first area a to the average illuminance in a second area B is greater than 0.7 and less than 1.3. Wherein the first area a and the second area B are located on the same plane and are concentrically or substantially concentrically arranged (assuming that each area is circular or substantially circular, the center or circle center thereof is located at the same position). The first area a and the second area B are both located in a third area C (the third area C is located in the same plane with the first area a and the second area B), and the beam angle C corresponding to the third area C is 90 degrees, 80 degrees, 60 degrees or 50 degrees. The beam angle in this embodiment may be smaller than the light emission angle of the LED lighting device. In this embodiment, the light uniformity is considered by the illuminance difference within the range of 50 degrees, so that the light beam angle C corresponding to the third area C is 50 degrees. The first area a and the second area B are disposed concentrically or substantially concentrically with the third area C, and the beam angle a corresponding to the first area a and the beam angle B corresponding to the second area B are smaller than the beam angle C corresponding to the third area C. It should be noted that the beam angle referred to herein is not an angle formed by the boundary lines of the relevant ranges. The center or circle center of the third area C in this embodiment corresponds to the LED lighting device, that is, when the LED lighting device is projected onto the third area C along the optical axis D, the position of the LED lighting device falls or approximately falls on the center or circle center of the third area C. In this embodiment, the plane in which the first area a and the second area B are located is perpendicular or substantially perpendicular to the optical axis D.

The optical member 3 in the present embodiment includes a first light distribution unit 31, and the first light distribution unit 31 is configured to control a light emission angle (light emission angle in the first direction X and/or the second direction Y) at which light generated when the light-emitting body 22 operates is emitted from the optical member 3 to be smaller than 100 degrees to control a glare value thereof. Further, the first light distribution unit 31 is configured to control the light emission angle (light emission angle in the first direction X and/or the second direction Y) at which the light generated when the light emitter 22 operates is between 90 degrees and 95 degrees when the light is emitted from the optical member 3. The first light distribution unit 31 in the present embodiment is configured to have a plurality of light distribution portions, and the micro light distribution portions may be configured to have one or more functions of reflection, refraction, and light transmission, so that the light emission angle of the LED lighting apparatus is smaller than the original light emission angle of the light emitter 22 (when no light member is present).

The optical member 3 in the present embodiment has a groove 33, and the light emitting unit 2 is accommodated in the groove 33. The length of the light emitting unit 2 (substrate 21) in the present embodiment is longer than that of the optical member 3. One or both ends of the substrate 21 are exposed to the outside of the optical member 3 in the length direction thereof to facilitate electrical connection.

In an embodiment, the optical member 3 may further include a second light distribution unit 31, where the second light distribution unit 31 is configured to transmit at least part of the light generated when the light emitter 22 is operated to the mounting surface 111 through the optical member 3, so as to make the mounting surface 111 exhibit a better optical effect.

In one embodiment, the optical member 3 may be a monolithic structure and cover the light emitting unit 2. In one embodiment, the optical components 3 are multi-stage, i.e. a plurality of groups of optical components 3 are disposed corresponding to a light-emitting unit 2.

Referring to fig. 2A to 2G, in a second embodiment, the present invention provides an LED lighting device, whose basic structure can be the same as that of the LED lighting device in the foregoing embodiment. In another embodiment, the light emitting unit 2 in the present embodiment further includes a lamp 23, that is, the light emitting unit 2 includes a substrate 21, a light emitting body and the lamp 23, the light emitting body 22 may be LED beads, the light emitting body 22 is fixed on the substrate 21, and the substrate is disposed on an inner peripheral surface of the lamp 23. While the lamp tube 23 may be attached to the mounting surface 111 or spaced apart from the mounting surface 111.

In addition, the optical member 3 in the present embodiment includes a first light distribution unit 301 and a second light distribution unit 302, the first light distribution unit 301 is configured in a sheet-like structure and extends in the first direction X, and the second light distribution unit 301 is configured in a sheet-like structure and extends in the second direction Y. The light emitting units 2 are provided with second light distribution units 302 on both sides in the second direction Y, respectively. A plurality of sets of first light distribution units 301 are arranged in the first direction X. The surfaces of the first light distribution unit 301 and the second light distribution unit 302 in the present embodiment each have a light reflection function.

The plurality of sets of first light distribution units 301 and the plurality of sets of second light distribution units 302 in the present embodiment form a plurality of light distribution cavities 303 together, the plurality of light distribution cavities 303 are arranged along the first direction X, and the light distribution cavities 303 have reflecting walls (formed by side walls of the first light distribution units 301 and the second light distribution units 302). At least a part of the light emitting unit 2 in the width direction is located in the light distribution cavity 303. Due to the arrangement of the reflecting wall, the light emitting angle of the light emitting unit 2 can be limited to play a role in controlling glare.

In this embodiment, there is a space between the first light distribution unit 301 and the mounting surface 111, and the light generated when the light emitting unit 2 works at least partially penetrates through the space, so that no obvious dark space exists on the base 11, and the lighting effect is improved. In this embodiment, the second light distribution unit 302 is attached to the mounting surface 111, and if the distance between the second light distribution unit 302 and the mounting surface 111 is smaller than 5mm, the second light distribution unit 302 may be attached to the mounting surface 111.

The second light distribution unit 302 in this embodiment is provided with a groove 3021, and the lamp tube 23 of the light emitting unit 2 is engaged with the groove 3021. That is, the first light distribution unit 301 supports the light emitting unit 2 to complete the installation of the light emitting unit 2, and the structure is simpler without fixing the light emitting unit 2 to the installation surface 111. In the mounting, the lamp tube 23 is first locked into the groove 3021, and then the optical member 3 is directly fixed to the base 11 together with the end cap 12.

The light source carrier 1 in this embodiment also includes a base 11 and end caps 12 provided at both ends of the base 11. The base 11 defines a mounting surface 111, and the light emitting unit 2 corresponds to the mounting surface 111 (the light emitting unit 2 may not be directly fixed to the mounting surface 111).

The end cap 12 in this embodiment may also include a wall portion 121, where the wall portion 121 defines a first accommodating space 1211 and a second accommodating space 1212, and the specific structure thereof is substantially the same as that of the previous embodiment, and will not be repeated here.

In this embodiment, the end of the light emitting unit 2 enters the second accommodating space 1212 (the light tube 23 enters the second accommodating space 1212), and the electrical connection units are all located in the second accommodating space 1212 and/or the first accommodating space 1211. At least one light emitter 22 in the present embodiment is located in the second accommodating space 1212, and when the light emitter 22 located in the second accommodating space 1212 is lighted, at least part of the light emitted by the light emitter is emitted through the end cover 12, so as to avoid forming a dark area at the end cover 12.

In this embodiment, the connector may further include a connection terminal. In this embodiment, the power source 4 is disposed in the first accommodating space 1211 of one end cap 12, and the connection terminal is disposed in the first accommodating space 1211 of the other end cap 12. The connection terminal in the present embodiment is configured to be connected to the light emitting unit 2 or to an external power source.

The connecting terminal in the embodiment is connected with the power supply through a wire. The wire may be disposed along the mounting surface 111 with both ends thereof respectively entering the first receiving spaces 1211 of the end caps 12 of both sides. Further, the LED lighting device of the present embodiment further includes a threading unit 5, unlike the previous embodiment, the threading unit 5 of the present embodiment is directly formed on the optical member 3, and a groove 53 is provided on the threading unit 5 for accommodating the wire. Alternatively, the threading unit 5 only plays a role of shielding, which covers the outside of the wire so that the presence of the wire is not observed from the outside.

The end cap 12, the optical member 3, and the threading unit 5 in this embodiment are integrally formed. The three are formed by integral injection molding, so that the processing is more convenient, and the installation is simpler and more convenient after the integration of the three.

As shown in fig. 3A to 3E, the present invention provides an LED lighting device in a third embodiment, and the basic structure of the present embodiment may be the same as that of the foregoing embodiment. The LED lighting device in the present embodiment includes: a light source carrier 1, a light emitting unit 2, an optical member 3 and a power supply 4. Wherein the light emitting unit 2 is fixed on the light source carrier 1, and the optical member 3 is covered or at least partially covered on the light emitting unit 2, so that at least a part or all of the light emitted by the light emitting unit 2 is emitted from the LED lighting device through the optical member 3 when the light emitting unit is lighted. The light emitting unit 2 in this embodiment is fixed to the light source carrier in a non-detachable form (non-replaceable) (and thus may be referred to as an integrated lighting device).

Referring to fig. 3A to 3D, the light source carrier 1 in the present embodiment includes a base 101 (the aforementioned end cap may not be included). The base 101 defines a mounting surface 1011, to which mounting surface 1011 the lighting unit 2 is directly or indirectly fixed. Further, the light emitting unit 2 includes a light plate 201 and a light emitting body 202, the light emitting body 202 is fixed on the light plate 201, and the light emitting body 202 may be an LED lamp bead. In this embodiment, the lamp panel 201 is attached to the mounting surface 1011, for example, the lamp panel 201 is adhered to the mounting surface 1011 by using glue, or the mounting surface 1011 is provided with a mounting structure, so that the lamp panel 201 is attached to the mounting surface 1011 by means of clamping, fastening, screwing, magnetic attraction, etc. In this embodiment, after the lamp panel 201 is fixed on the mounting surface 1011, the light emitting unit 2 and the base 101 form a heat conduction path. Thus, the heat generated when the light emitting unit 2 is turned on can be conducted to the base 101, and the heat is dissipated through the base 101.

In this embodiment, the accommodating space 1012 is formed on the base 101, the light emitting unit 2 and the optical member 3 are disposed in the accommodating space 1012, and in the height direction of the base 101, the light emitting unit 2 and the optical member 3 do not exceed the range defined by the accommodating space 1012.

In this embodiment, the accommodating space 1012 is formed by a first wall portion 10121 and a second wall portion 10122, and the first wall portion 10121 and the second wall portion 10122 are all components of the base 101. The first wall portion 10121 is disposed around the second wall portion 10122, and the first wall portion 10121 protrudes with respect to the lower end wall 10123 of the base 101. The second wall portion 10122 may be parallel or substantially parallel to the lower end wall 10123 of the base 101. By providing the first wall portion 10121 and a second wall portion 10122, the structural strength of the base 101 can be improved.

The power supply 4 in this embodiment is disposed on the other side of the base 101 opposite to the light emitting unit 2. Specifically, in the height (or thickness) direction of the LED lighting device, the power source 4 is limited within a height (or thickness) range defined by the second wall portion 10122 and the lower end wall 10123. That is, the power supply 4 does not occupy the height (or thickness) of the LED lighting device additionally, so as to control the height (or thickness) of the LED lighting device, thereby facilitating the control of the package size and reducing the transportation cost.

In one embodiment, the accommodating spaces 1012 are arranged in two groups, the two groups of accommodating spaces 1012 are connected through the connecting wall 10124, and the light emitting unit 2 and the optical member 3 are arranged in each group of accommodating spaces 1012. The power source 4 is disposed between the first wall portions 10121 of the two sets of accommodating spaces 1012. Specifically, the power source 4 is fixed to the connecting wall 10124 between the two sets of accommodating spaces 1012. And the power supply 4 is mounted on the connecting wall 10124, the structural strength of the connecting wall 10124 can be increased. As shown in fig. 3E, in another embodiment, the accommodating spaces 1012 are arranged in a group, and at this time, the power source 4 is disposed at one end of the LED lighting device in the length direction.

The lamp board 201 in this embodiment is a flexible circuit board or a flexible substrate. The first wall 10121 is provided with a hole 10125, and the lamp panel 201 is electrically connected to the power source 4 after passing through the hole 10125. In one embodiment, the lamp panel 201 may be directly welded to the power source 4. In one embodiment, the lamp panel 201 and the power source 4 are positioned by a positioning unit and then welded.

The optical member 3 in the present embodiment is attached to the mounting surface 1011. Further, the optical member 3 in the present embodiment may be directly fixed to the mounting surface 1011. In one embodiment, the optical member 3 is directly adhered to the mounting surface 1011. In one embodiment, the optical member 3 is secured to the mounting surface 1011 by a securing structure, such as by bolts, snaps, or the like.

Referring to fig. 3A, 3B and 1G, in the present embodiment, in order to control the uniformity of light emitted from the LED lighting device, the ratio of the illuminance of the light emitting unit 2 in a first area a to the average illuminance of the light emitting unit in a second area B is greater than 0.3, 0.4, 0.5, 0.6, 0.7, 0.8 or 0.9 and less than 2. In some embodiments, the ratio of the illuminance in a first area a to the average illuminance in a second area B is greater than 0.5 and less than 1.5. In some embodiments, the ratio of the illuminance in a first area a to the average illuminance in a second area B is greater than 0.7 and less than 1.3. Wherein the first area A and the second area B are positioned on the same plane. The first area a and the second area B are both located in a third area C (the third area C is located in the same plane with the first area a and the second area B), and the beam angle C corresponding to the third area C is 90 degrees, 80 degrees, 60 degrees or 50 degrees. The beam angle c in this embodiment may be smaller than the light emission angle of the LED lighting apparatus. In this embodiment, the light uniformity is considered by the illuminance difference within the range of 50 degrees of the beam angle, so that the beam angle corresponding to the third area C is 50 degrees. The first region a and the second region B may be any regions within the third region C. It should be noted that the beam angle a referred to herein is not an angle formed by the boundary line of the light range. The center or circle center of the third area C in this embodiment corresponds to the LED lighting device, that is, when the LED lighting device is projected onto the third area C along the optical axis D, the position of the LED lighting device falls or approximately falls on the center or circle center of the third area C. In this embodiment, the plane in which the first area a and the second area B are located is perpendicular or substantially perpendicular to the optical axis D.

Referring to fig. 3A, 3B and 1H, in an embodiment, to control the uniformity of light emitted from the LED lighting device, the ratio of the illuminance of the light emitted from the light emitting unit 2 when the light emitting unit is turned on in a first area a to the average illuminance in a second area B is greater than 0.3, 0.4, 0.5, 0.6, 0.7, 0.8 or 0.9 and less than 2. In some embodiments, the ratio of the illuminance in a first area a to the average illuminance in a second area B is greater than 0.5 and less than 1.5. In some embodiments, the ratio of the illuminance in a first area a to the average illuminance in a second area B is greater than 0.7 and less than 1.3. Wherein the first area a and the second area B are located on the same plane and are concentrically or substantially concentrically arranged (assuming that each area is circular or substantially circular, the center or circle center thereof is located at the same position). The first area a and the second area B are both located in a third area C (the third area C is located in the same plane with the first area a and the second area B), and the beam angle C corresponding to the third area C is 90 degrees, 80 degrees, 60 degrees or 50 degrees. The beam angle in this embodiment may be smaller than the light emission angle of the LED lighting device. In this embodiment, the light uniformity is considered by the illuminance difference within the range of 50 degrees, so that the light beam angle C corresponding to the third area C is 50 degrees. The first area a and the second area B are disposed concentrically or substantially concentrically with the third area C, and the beam angle a corresponding to the first area a and the beam angle B corresponding to the second area B are smaller than the beam angle C corresponding to the third area C. It should be noted that the beam angle referred to herein is not an angle formed by the boundary lines of the relevant ranges. The center or circle center of the third area C in this embodiment corresponds to the LED lighting device, that is, when the LED lighting device is projected onto the third area C along the optical axis D, the position of the LED lighting device falls or approximately falls on the center or circle center of the third area C. In this embodiment, the plane in which the first area a and the second area B are located is perpendicular or substantially perpendicular to the optical axis D.

As shown in fig. 4A to 4B, the present invention provides an LED lighting device in a fourth embodiment, and the basic structure in this embodiment can be the same as that of the previous embodiment. The difference is the way in which the lighting unit 2 is mounted. Specifically, the LED lighting apparatus in the present embodiment includes a light source carrier 1, a light emitting unit 2, an optical member, and a mounting unit 6, and the light emitting unit 2 is fixed to the mounting unit 6. The light source carrier 1 comprises a base 101, and the light emitting unit 2 is arranged facing the base 101. At least 80% of the light generated when the light emitting unit 2 in this embodiment operates is reflected by the base 101 and emitted from the LED lighting device.

Further, the base 101 is provided with an optical surface 1013 for reflecting light generated by the light emitting unit 2. In this embodiment, the light is emitted by the reflection manner of the base 101, so that the light is more uniform, and the glare value can be controlled more easily.

The mounting unit 6 in the present embodiment has a first state in which the light emitting unit 2 is disposed facing the base 101, and a second state in which the light emitting unit 2 and the mounting unit 6 are beyond a range defined by the base 101 in a height (or thickness) direction of the LED lighting apparatus, that is, the light emitting unit 2 and the mounting unit 6 are beyond a lower end wall 10123 of the base 101; in the second state, the light emitting unit 2 and the mounting unit 6 are accommodated in the accommodating space 1012 of the base 101, and neither the light emitting unit 2 nor the mounting unit 6 exceeds the range defined by the base 101 in the height (or thickness) direction of the LED lighting device, i.e., the light emitting unit 2 and the mounting unit 6 do not exceed the lower end wall 10123 of the base 101, so as to reduce the package size.

The mounting unit 6 in one embodiment is rotatably connected to the base 101, and the mounting unit 6 is switched between the first state and the second state when rotated.

The mounting unit 6 in one embodiment is slidably coupled to the base 101 in the height (thickness) direction of the base 101 to switch between a first state and a second state depending on the position of the mounting unit relative to the base 101.

In the above embodiment, a locking unit may be further provided to perform positioning in the first state and/or the second state, so as to maintain the mounting unit in the first state or the second state.

In this embodiment, an optical member may also be disposed, so that the LED lamp in this embodiment has a better light emitting effect.

As shown in fig. 5A to 5B, the present invention provides an LED lighting device in a fifth embodiment, and the basic structure in this embodiment can be the same as that of the previous embodiment. In contrast, the optical member 3 in the present embodiment is an optical cover. The optical cover is coated with a diffusion layer or has a diffusion function by its own material properties to reduce glare so that the light is more uniformly emitted.

As shown in fig. 6A to 6P, the present invention provides an LED lighting device in a sixth embodiment, and the basic structure of the LED lighting device in this embodiment can be the same as that of the foregoing third embodiment. The LED lighting device in this embodiment includes a light source carrier 1, a light emitting unit 2, an optical member 3, and a power supply 4. Wherein the light emitting unit 2 is fixed on the light source carrier 1, and the optical member 3 is covered or at least partially covered on the light emitting unit 2, so that at least a part or all of the light emitted by the light emitting unit 2 is emitted from the LED lighting device through the optical member 3 when the light emitting unit is lighted. In an embodiment, when the light emitting unit 2 is lit, at least 80% of the luminous flux emitted by it is directly emitted from the LED lighting device via the optical member 3 (without reflection by the base 101 or the like). In an embodiment, when the light emitting unit 2 is lit, at least 90% of the luminous flux emitted by it is directly emitted from the LED lighting device via the optical member 3 (without reflection by the base 101 or the like). The light emitting unit 2 in this embodiment is fixed to the light source carrier in a non-detachable form (non-replaceable) (and thus may be referred to as an integrated lighting device).

Referring to fig. 6A to 6F, the light source carrier 1 in the present embodiment includes a base 101 (excluding the aforementioned detachable end cap). The base 101 defines a mounting surface to which the lighting unit 2 is directly or indirectly fixed. Further, the light emitting unit 2 includes a light plate 201 and a light emitting body 202, the light emitting body 202 is fixed on the light plate 201, and the light emitting body 202 may be an LED lamp bead. In this embodiment, the lamp panel 201 is attached to the mounting surface, for example, the lamp panel 201 is adhered to the mounting surface by using glue, or the mounting surface is provided with a mounting structure, so that the lamp panel 201 is attached to the mounting surface in a manner of clamping, fastening, screwing, magnetic attraction, etc. In this embodiment, after the lamp panel 201 is fixed on the mounting surface, the light emitting unit 2 and the base 101 form a heat conduction path. Thus, the heat generated when the light emitting unit 2 is turned on can be conducted to the base 101, and the heat is dissipated through the base 101.

In the present embodiment, the accommodating space 1012 is formed on the base 101, the light emitting unit 2 and the optical member 3 are both disposed in the accommodating space 1012, and in the height direction of the base 101, the light emitting unit 2 and the optical member 3 do not exceed the range defined by the accommodating space 1012 (the range defined by the accommodating space 1012 in the height direction of the LED lighting apparatus). The accommodating space 1012 in the present embodiment may be provided with two sets, so as to correspondingly provide two sets of the light emitting units 2 and the optical members 3.

The base 101 in this embodiment includes a first wall 1014, a second wall 1015, and a mounting wall 1016, and the light panel 201 of the light emitting unit 2 is at least partially or entirely fixed to the mounting wall 1016. In one embodiment, a portion of the width direction of the light panel 201 is attached to the mounting wall 1016 (to ensure that the light panel 201 with the portion of the light emitters 202 disposed is attached to the mounting wall 1016), and two sides of the width direction of the light panel 201 are attached to the first wall 1014 and the second wall 1015. The first wall 1014 and the second wall 1015 in this embodiment may be planar, and when the LED lighting device is horizontally installed, the first wall 1014 and the second wall 1015 form an angle with the horizontal. The installation of the light emitting unit 2 is facilitated by the installation of the installation wall 1016 in the present embodiment, so that the light emitting body 202 can provide downward light emission after the lamp panel 201 is installed on the installation wall 1016. The mounting wall 1016 may be provided with a flat surface for mounting the lamp panel 201. The attachment in this embodiment may be a general attachment, i.e., more than 30% of the area of the back surface of the light panel 201 is attached to the mounting wall 1016. The application in this embodiment may refer to the lamp panel 201 being applied to the mounting wall 1016 by another medium (e.g., glue).

The base 101 in this embodiment further includes an end wall 1017, wherein the end wall 1017 is disposed at the end of the first wall 1014 and the second wall 1015 and is connected to the first wall 1014 and the second wall 1015. The first wall 1014, the second wall 1015, the mounting wall 1016, and the end wall 1017 define the structure of the receiving space 1012 and the extent defined by the receiving space 1012. The arrangement of the end wall 1017, the first wall 1014, and the second wall 1015 ensures structural strength of the base 101. The end wall 1017 can ensure the structural strength of the LED lighting device on the premise of omitting the end cover.

The LED lighting apparatus in the present embodiment includes only one optical member 3 (a light emitting unit 2 is provided with only one optical member 3, and when a plurality of sets of light emitting units 2 are provided, each set of light emitting units 2 is provided with only one set of optical member 3. Since only one optical member 3 is provided in this embodiment, the light loss caused by providing the optical member can be reduced. When the LED lighting device in the present embodiment includes only one optical member 3, the light extraction rate (the light extraction rate refers to the ratio of the luminous flux emitted by the LED lighting device to the luminous flux generated by the light emitting unit 2) of the LED lighting device may reach 90%, 92%, and 95% or more. The optical member 3 in this embodiment is completely accommodated in the accommodating space 1012 so that it does not occupy an additional height space of the LED lighting device. That is, the optical member 3 does not exceed the space defined by the base 101 in the height direction of the LED lighting apparatus. In this embodiment, the light emitting unit 2 and the optical member 3 at least partially overlap in the height direction of the LED lighting device to reduce the height of the light emitting unit 2 after being combined with the optical member 3, and the space between the light emitting unit 2 and the optical member 3 can be reduced to reduce the light loss of the light within the space. Further, the light emitting unit 2 does not exceed the range defined by the optical member 3 in the height direction of the LED lighting apparatus. As shown in fig. 6T, the base 101 may be provided thereon with a fixing unit 1019, and the optical member 3 is fixed and positioned on the base 101 by the fixing unit 1019. In this embodiment, the fixing unit 1019 includes an arm 10191, the arm 10191 may be integrally formed on the base 101, and the arm 10191 fixes the optical member 3 in a pressing or fastening manner. At the time of assembly, the arm 10191 is bent to fix the optical member 3. Further, in order to realize positioning of the optical member 3 in the longitudinal direction, a positioning notch 304 is provided on the optical member 3, and the arm 10191 is snapped into the positioning notch 304 to complete fixing and positioning of the optical member 3. In this embodiment, a plurality of positioning notches 304 are provided on the optical member 3 so as to complete the engagement with the plurality of arm portions 10191, thereby preventing the optical member 3 from deflecting.

The optical member 3 in the present embodiment covers substantially only the lamp panel 201, and does not cover the area of the base 101 additionally. For example, the area of the optical member 3 covering the front surface of the chassis 101 is not more than 10% of the total area of the front surface of the chassis 101. The area of the front surface of the base 101 in this embodiment refers to the projected area in the direction perpendicular to the lamp panel 201. Specifically, the area of the front surface of the chassis 101 is the length times the width of the chassis 101. While the area of the optical member 3 covering the front surface of the chassis 101 is the area occupied by the optical member 3 projected onto the chassis 101, which is actually the length times the width of the optical member. In this embodiment, the ratio of the width of the optical member 3 to the width of the lamp panel 201 is set to be 1.1-2 in order to provide the coverage of the lamp panel 201 without covering too much area of the front surface of the base 101. Further, the ratio of the width of the optical member 3 to the width of the lamp panel 201 is set to be 1.1 to 1.5.

Referring to fig. 6C and 6D, in the present embodiment, the optical member 3 includes a first light distribution unit 3001 and a second light distribution unit 3002. The first light distribution unit 3001 in the present embodiment is configured in a stripe shape, and a receiving groove 30011 is provided along the length direction of the first light distribution unit 3001, and at least a portion of the light emitting unit 2 in the height direction is located in the receiving groove 30011. The second light distribution unit 3002 is provided on the surface of the first light distribution unit 3001, and the second light distribution unit 3002 and the accommodation groove 30011 are respectively located on opposite sides of the first light distribution unit 3001 in the height direction of the optical member 3. The light emitters 202 of the light emitting unit 2 are arranged corresponding to the second light distribution unit 3002. Specifically, the light emitters 202 are arranged in one-to-one correspondence with the second light distribution units 3002.

Further, the light emitter 202 of the light emitting unit 2 is completely accommodated in the accommodating groove 30011. The distance from the surface of the light emitter 202 to the bottom surface of the accommodating groove 30011 (the surface of the accommodating groove 30011 corresponding to the light emitter 202) in this embodiment is a (a is 0 or more), the distance from the surface of the light emitter 202 to the second light distribution unit 3002 is B, and the relationship between a and B satisfies the following condition: a: the value of B is greater than 0.05 and less than 0.25. Further, the relationship between A and B satisfies the following condition: a: the value of B is greater than 0.1 and less than 0.2. When a and B satisfy the above relationship, the light emitted from the controllable light emitter 202 may largely or entirely correspond to the second light distribution unit 3002. That is, irrespective of the reflection of the light generated by the light emitter 202 at the interface, the light generated by the light emitter 202 will be completely projected to the second light distribution unit 3002 and optically processed by the second light distribution unit 3002.

The lamp panel 201 in the embodiment is disposed in the accommodating groove 30011, and two sides of the lamp panel 201 correspond to inner sidewalls of the accommodating groove 30011. The side of the lamp panel 201 may contact the inner sidewall of the receiving groove 30011. That is, the inner side wall of the accommodation groove 30011 plays a role of limiting the lamp panel 201 to determine the position of the light emitter 202 on the lamp panel 201 so that the light emitter 202 is aligned with the optical member 3 (the second light distribution unit 3002).

In an embodiment, the surface of the light emitter 202 may directly contact the bottom surface (not shown) of the accommodating groove 30011. Therefore, the light generated by the light emitter 202 can directly enter the medium of the first light distribution unit 3001, and the light can not pass through the air between the light emitter 202 and the first light distribution unit 3001, so that the interface (the interface with different refractive indexes) through which the light passes can be reduced, and the light loss can be reduced. In addition, the surface of the light emitter 202 directly contacts the bottom surface of the accommodating groove 30011, and the heat generated by the light emitter 202 can be conducted to the first light distribution unit 3001, which is beneficial to heat dissipation of the light emitter 202. In an embodiment, the surface of the light emitter 202 contacts the bottom surface (not shown) of the accommodating groove 30011 through an optical medium, that is, the surface of the light emitter 202 directly contacts the bottom surface of the accommodating groove 30011 through the optical medium, so as to exclude air in the gap between the surface of the light emitter 202 and the bottom surface of the accommodating groove 30011, and achieve better refractive index matching. In other embodiments, the surface of the light emitter 202 is provided with an optical medium to achieve better light emitting effect, and the optical medium is not contacted with the bottom surface of the accommodating groove 30011.

At least 70% of the luminous flux generated by the light emitter 202 in the present embodiment is directly emitted from the LED lighting device via the second light distribution unit 3002. The remaining light flux is emitted from the first light distribution unit 3001. Further, at least 80% of the luminous flux generated by the luminous body 202 is directly emitted from the LED lighting device via the second light distribution unit 3002. Further, at least 90% of the luminous flux generated by the luminous body 202 is directly emitted from the LED lighting device via the second light distribution unit 3002. At least a portion of the light emitted through the first light distribution unit 3001 is incident on the surface of the base 101, so that a better optical effect is exhibited at the base 101.

The bottom surface of the accommodating groove 30011 in the present embodiment forms a light-entering portion 30012, and at least a part of the light generated by the light emitter 202 (for example, at least 80% of the light flux generated by the light emitter 202, or at least 90% of the light flux generated by the light emitter 202) passes through the light-entering portion 30012, enters the optical member 3, and enters the second light distribution unit 3002. In an embodiment, the light flux generated by the light emitting body 202 directly enters the light incident portion 30012 without considering the reflection at the light incident portion 30012, that is, the light emitting range of the light emitting body 202 completely corresponds to the light incident portion 30012, so as to improve the light emitting effect (light emitting efficiency and light emitting type). The second light distribution portion 3002 in the present embodiment includes a first light extraction portion 30021 and a second light extraction portion 30022. The illuminance ratio of the surfaces of the first light-emitting portion 30021 and the second light-emitting portion 30022 is greater than 0.3, 0.4, 0.5, 0.6, 0.7, 0.8 or 0.9 and less than 2, 1.9, 1.8, 1.7, 1.6 or 1.5, so that the light emission in the light-emitting range of the LED lighting device is more uniform. In this embodiment, the first light emitting portion 30021 includes a plane or a substantially plane, the second light emitting portion 30022 includes a conical surface or a substantially conical surface, and the second light emitting portion 30022 is disposed around the first light emitting portion 30021.

In this embodiment, the ratio of the surface area of the second light emitting portion 30022 to the surface area of the first light emitting portion 30021 is greater than 20. Further, the ratio of the surface area of the second light emitting portion 30022 to the surface area of the first light emitting portion 30021 is greater than 30. Thus, better light-emitting effect (light-emitting angle and light type) can be obtained. The height H of the second light emitting portion 30022 in the present embodiment is less than 2mm and greater than 0.5mm. Further, the height H of the second light emitting portion 30022 is smaller than 1.5mm and larger than 0.8mm to control the light distribution at the time of light emission.

As shown in fig. 6T, the ratio of the surface area of the second light emitting portion 30022 to the surface area of the first light emitting portion 30021 may be set to be greater than 0.7 and less than 1.8. Further, the ratio of the surface area of the second light emitting portion 30022 to the surface area of the first light emitting portion 30021 may be set to be greater than 0.8 and less than 1.5. Therefore, a better light emitting effect (light emitting angle and light type) can be obtained, and at the moment, the LED lighting equipment can obtain better light emitting uniformity in a light emitting area. And, correspondingly, the height H of the second light emitting portion 30022 is smaller than 0.8mm and larger than 0.2mm. Further, the height H of the second light emitting portion 30022 is less than 0.7mm and greater than 0.3mm. To control the light distribution at the time of light extraction.

As shown in fig. 6D, the second light emitting portion 30022 in the present embodiment has a contour line that rotates 360 degrees along the central axis of the second light distribution portion 3002 to form the outer contour of the second light emitting portion 3002. The absolute value of the slope of the contour line of the outer contour of the tapered surface of the second light emitting portion 30022 in this embodiment is between 0.3 and 0.8. Further, the absolute value of the slope of the outer contour of the tapered surface of the second light emitting portion 30022 is between 0.35 and 0.5. The second light emitting portion 30022 plays a role of adjusting the light pattern, and when the absolute value of the slope of the contour line of the outer contour of the tapered surface of the second light emitting portion 30022 is in the above section, a preferable light emitting effect (light emitting angle and light emitting pattern) can be obtained. In the present embodiment, when calculating the slope of the contour line of the outer contour of the tapered surface of the second light emitting portion 30022, the optical member 3 is calculated in the placement manner of fig. 6D, that is, above the light emitting unit 2.

As shown in fig. 6T, the second light emitting portion 30022 in an embodiment has a contour line that rotates 360 degrees along the central axis of the second light distribution portion 3002 to form the outer contour of the second light emitting portion 3002. The absolute value of the slope of the contour line of the outer contour of the tapered surface of the second light emitting portion 30022 in this embodiment is between 0.25 and 0.6. Further, the absolute value of the slope of the outer contour of the tapered surface of the second light emitting portion 30022 is between 0.3 and 0.6. Further, the absolute value of the slope of the outer contour of the tapered surface of the second light emitting portion 30022 is between 0.4 and 0.5. The second light emitting portion 30022 plays a role of adjusting the light pattern, and when the absolute value of the slope of the contour line of the outer contour of the tapered surface of the second light emitting portion 30022 is in the above section, a preferable light emitting effect (light emitting angle and light emitting pattern) can be obtained. In the present embodiment, when calculating the slope of the contour line of the outer contour of the tapered surface of the second light emitting portion 30022, the optical member 3 is calculated in the placement manner of fig. 6D, that is, above the light emitting unit 2.

In the LED lighting device of the present embodiment, at least 80%, 85% or 90% of the luminous flux generated when the light emitter 202 is operated on the light-emitting path is directly emitted from the LED lighting device through the second light distribution unit 3002 (the part of the light is not reflected by the base 101 after passing through the second light distribution unit 3002, so as to reduce the possible light loss during reflection), thereby improving the light-emitting efficiency. In this embodiment, a part (less than 20%, 15%, or 10% of the total luminous flux) of the light generated by the light emitter 202 passes through the first light distribution unit 3001 and is emitted directly from the LED lighting device by reflection of the base 101, without emitting light through a light-transmitting plate or diffusion plate in the prior art. In general, of the light emitted from the LED lighting device in the present embodiment, the light reflected by the base 101 is smaller than the light emitted by the second light distribution unit 3002, and by reducing the light emission by reflection, the light loss can be reduced and the light emission efficiency can be improved. In this embodiment, the light output reflected by the base 101 can be controlled to be less than 10% of the total light output, and more than 90% of the light output is directly output by reflection, so as to reduce the light loss caused by reflection.

In other embodiments, the second light distribution unit 3002 may have a spherical structure or a polygonal prism structure.

Referring to fig. 6A, 6B and 1G, in the present embodiment, in order to control the uniformity of light emitted from the LED lighting device, the ratio of the illuminance of the light emitting unit 2 in a first area a to the average illuminance of the light emitting unit in a second area B is greater than 0.3, 0.4, 0.5, 0.6, 0.7, 0.8 or 0.9 and less than 2. In some embodiments, the ratio of the illuminance in a first area a to the average illuminance in a second area B is greater than 0.5 and less than 1.5. In some embodiments, the ratio of the illuminance in a first area a to the average illuminance in a second area B is greater than 0.7 and less than 1.3. Wherein the first area A and the second area B are positioned on the same plane. The first area a and the second area B are both located in a third area C (the third area C is located in the same plane with the first area a and the second area B), and the beam angle C corresponding to the third area C is 90 degrees, 80 degrees, 60 degrees or 50 degrees. The beam angle c in this embodiment may be smaller than the light emission angle of the LED lighting apparatus. In this embodiment, the light uniformity is considered by the illuminance difference within the range of 50 degrees of the beam angle, so that the beam angle corresponding to the third area C is 50 degrees. The first region a and the second region B may be any regions within the third region C. It should be noted that the beam angle a referred to herein is not an angle formed by the boundary line of the light range. The center or circle center of the third area C in this embodiment corresponds to the LED lighting device, that is, when the LED lighting device is projected onto the third area C along the optical axis D, the position of the LED lighting device falls or approximately falls on the center or circle center of the third area C. In this embodiment, the plane in which the first area a and the second area B are located is perpendicular or substantially perpendicular to the optical axis D.

Referring to fig. 6A, 6B and 1H, in an embodiment, to control the uniformity of the light emitted from the LED lighting device, the ratio of the illuminance in a first area a to the average illuminance in a second area B is greater than 0.3, 0.4, 0.5, 0.6, 0.7, 0.8 or 0.9 and less than 2. In some embodiments, the ratio of the illuminance in a first area a to the average illuminance in a second area B is greater than 0.5 and less than 1.5. In some embodiments, the ratio of the illuminance in a first area a to the average illuminance in a second area B is greater than 0.7 and less than 1.3. Wherein the first area a and the second area B are located on the same plane and are concentrically or substantially concentrically arranged (assuming that each area is circular or substantially circular, the center or circle center thereof is located at the same position). The first area a and the second area B are both located in a third area C (the third area C is located in the same plane with the first area a and the second area B), and the beam angle C corresponding to the third area C is 90 degrees, 80 degrees, 60 degrees or 50 degrees. The beam angle in this embodiment may be smaller than the light emission angle of the LED lighting device. In this embodiment, the light uniformity is considered by the illuminance difference within the range of 50 degrees, so that the light beam angle C corresponding to the third area C is 50 degrees. The first area a and the second area B are disposed concentrically or substantially concentrically with the third area C, and the beam angle a corresponding to the first area a and the beam angle B corresponding to the second area B are smaller than the beam angle C corresponding to the third area C. It should be noted that the beam angle referred to herein is not an angle formed by the boundary lines of the relevant ranges. The center or circle center of the third area C in this embodiment corresponds to the LED lighting device, that is, when the LED lighting device is projected onto the third area C along the optical axis D, the position of the LED lighting device falls or approximately falls on the center or circle center of the third area C. In this embodiment, the plane in which the first area a and the second area B are located is perpendicular or substantially perpendicular to the optical axis D.

The overall height of the LED lighting device in this embodiment is controlled below 30 mm. Further, the overall height of the LED lighting device is controlled below 25 mm. That is, when the height of the LED lighting apparatus is controlled to 30mm or 25mm or less, the light emitting unit 2 can achieve the above-described light emitting effect in the only space available for dimming.

Referring to fig. 6R, in one embodiment, at least part of the light emitters 202 are offset to one side (one side in the longitudinal direction of the optical member 3) of the second light distribution unit 3002 with respect to the second light distribution unit 3002 corresponding thereto. At least a part of the light emitters 202 are biased toward the other side (the other side in the longitudinal direction of the optical member 3) of the second light distribution unit 3002 with respect to the corresponding second light distribution unit 3002. In this way, the influence when the light emitter 202 and the second light distribution unit 3002 deviate can be reduced. In the present embodiment, the deviation of any one of the light emitters 202 from the corresponding second light distribution unit 3002 is less than 1mm (the distance from the center of the light emitter 202 to the center axis of the second light distribution unit 3002 in the longitudinal direction of the optical member 3).

In this embodiment, in order to reduce the deviation between the light emitter 202 and the second light distribution unit 3002, a positioning structure may be provided. In one embodiment, a plurality of fixing grooves (not shown) are provided on the first light distribution unit 3001, and the light emitting body 202 is fixed by the fixing grooves, and the position of the light emitting body 202 is fixed, so that the light emitting body 202 is precisely aligned with the second light distribution unit 3002. In other embodiments, the light plate 201 and the optical member 3 may be positioned (not shown), for example, positioning posts are disposed on the optical member 3, and positioning holes are disposed on the light plate 201.

In one embodiment, the optical member 3 and the light emitting unit 2 may be fixed together, and then the whole is mounted on the base 101 (not shown). In one embodiment, the optical member 3 is fixed to the light emitting body 202 and then fixed to the lamp panel 201, and the lamp panel 201 may be fixed to the base 101 first, or may be fixed to the base 101 after being fixed to the optical member 3 and the light emitting body 202 (not shown).

Referring to fig. 6A to 6C and fig. 6F to 6K, a through hole 10171 is provided on the base 101 in the present embodiment. Further, the through hole 10171 may be provided on the end wall 1017, and the through hole 10171 is located in the extending direction of the mounting wall 1016 in the length direction thereof. The lamp board 201 in the present embodiment is a flexible circuit board or a flexible circuit board, and the lamp board 201 passes through the through hole 10171 to reach the back surface of the base 101 (the other surface of the base 101 opposite to the light emitting unit 2). The lamp panel 201 in the present embodiment extends along the back surface of the base 101 and is attached to an end surface 1018 of one side of the back surface of the base 101 (the back surface of the first end of the base 101 in the longitudinal direction of the light emitting unit 2), and the power supply 4 is provided on the end surface 1018 and electrically connected to the lamp panel 201. The power supply 4 in the embodiment does not exceed the range defined by the base 101 in the height direction of the LED lighting device, so that the power supply does not occupy the height space of the LED lighting device additionally, and the power supply 4 is not easy to collide with the power supply 4 during packaging and transportation to cause damage to the power supply 4.

The LED lighting device of the present embodiment can control the overall height of the LED lighting device to 30mm or less due to the specific arrangement (height, position, structure, etc.) of the optical member 3 and the arrangement (height, position, structure, etc.) of the power supply 4. Further, the overall height of the LED lighting device is controlled below 25 mm.

Referring to fig. 6G and fig. 6J to 6P, the power supply 4 in the present embodiment includes a power supply box 41, an electronic component 42 and a power supply board 45, the electronic component 42 is disposed on the power supply board 45, and the power supply box 41 is fixed on the base 101. In this embodiment, the power supply 4 further includes an electrical isolation tube 43, all or at least part of the electronic component 42 and the power board 45 are disposed in the electrical isolation tube 43, the electrical isolation tube 43 is disposed in the power box 41, and the electrical isolation tube 43 is made of an insulating material, so as to perform an electrical isolation function and reduce an electrical shock risk. The power box 41 in the present embodiment has an opening 411, and the electric isolation tube 43 is fitted into the power box 41 through the opening 411. The side of the power box 41 having the opening 411 corresponds to the end surface 1018 of the base 101, thereby closing the power box 41, so that the installation can be facilitated and the material cost can be saved. In the present embodiment, the electronic component 42 is spaced between the power board 45 and the end surface 1018 on the back side of the base 101, so that the power board 45 and the end surface 1018 on the back side of the base 101 are spaced apart.

The power box 41 in the present embodiment has a first cavity 4101 and a second cavity 4102, wherein the electric isolation tube 43 and the electronic element 42 are disposed in the first cavity 4101, and the strength of the power box 41 at the position where the electric isolation tube 43 is disposed in the first cavity 4101 can be increased. And a patch panel 44 is provided at the second chamber 4102, the patch panel 44 closing the second chamber 4102. The power supply 4 in this embodiment is electrically connected to the wiring board 44 by a wire. Specifically, one end of the wire is electrically connected to the power supply board 45 of the power supply 4 in the first cavity 4101, and the other end of the wire enters the second cavity 4102 to be electrically connected to the wiring board 44.

The electric isolation tube 43 in the present embodiment presses the lamp panel 201, so that the lamp panel 201 is adhered to the end surface 1018 on the back of the base 101, to prevent the lamp panel 201 from loosening, and the electronic component 42 is separated from the lamp panel 201 by the electric isolation tube 43, thereby playing an electric shock prevention role. In this embodiment, the power box 41 may at least partially press the lamp panel 201. One end of the lamp panel 201 is directly welded to the power panel 45. In other embodiments, the lamp panel 201 is connected to the power panel 45 by welding after being positioned by a positioning unit. The positioning unit can be a positioning column, and the positioning column can pass through the power panel 45 and the lamp panel 201 at the same time, so that the positioning of the power panel 45 and the lamp panel 201 is realized, and the installation is convenient and the accuracy of electric connection is ensured.

Referring to fig. 6K and 6M, in the embodiment, the lamp board 201 is a flexible circuit board and has a bending portion 2011, and the lamp board 201 is folded at the bending portion 2011, so that a portion of the front surface (the surface with the light emitter 202) of the lamp board 201 behind the bending portion 2011 is disposed opposite to the end surface 1018 of the back surface of the base 101, so as to facilitate connection between the portion of the lamp board 201 and the power board 45.

Referring to fig. 6i,6k and 6M, the LED lighting device of the present embodiment further includes a shielding portion 7. The lamp panel 201 passes through the through hole 10171 and then has a first portion and a second portion on the back surface of the base 101, the second portion is attached to the end surface 1018 on the back surface of the base 101, the first portion is used for connecting the second portion and the lamp panel 201 located on the front surface of the base 101, and the shielding portion 7 is covered on the first portion of the lamp panel 201, so that the first portion is not exposed, and the outside is prevented from contacting the first portion of the lamp panel 201 to get an electric shock.

Referring to fig. 6U and 6V, the lamp panel 201 in the present embodiment may also be a hard lamp panel, such as an aluminum substrate or an FR4 board. At this time, the two ends of the lamp panel 201 may not extend to the back of the base 101 and be directly connected to the power source 4 (not shown), but connect the lamp panel 201 and the power source 4 through wires. At this time, the shielding portion 7 shields the wires exposed to the outside so that the wires of the portion are not exposed.

The light 202 in this embodiment includes a first light and a second light (not shown) that have different color temperatures, luminous fluxes, or color rendering indices when lit. Thus, the dimming control method can provide a basis for dimming the LED lighting equipment. The light emitting unit 2 in the present embodiment has two rows of light emitters 202 (not shown), one row being a first light emitter and the other row being a second light emitter. The optical member 3 corresponding thereto has two rows of second light distribution units 3002 (not shown) to correspond to the first light emitter and the second light emitter.

Referring to fig. 6V and 6W, the power supply box 41 in the present embodiment is fixed to the end face 1018 of the back surface of the base 101, and the power supply box 41 is kept spaced from the end face 1018 to reduce heat conduction between the base 101 and the power supply box 41. The power box 41 in the present embodiment is provided with a first fixing unit 412, and the base 101 is provided with a second fixing unit 1019, and the power box 41 is fixed to the base 101 by the cooperation of the first fixing unit 412 and the second fixing unit 1019. Specifically, the first fixing unit 412 may include a mounting hole and/or a snap, and the second fixing unit 1019 may include a snap and/or a mounting hole that mates with the first fixing unit 412.

The base 101 in the present embodiment has two sets of mounting walls 1016, and the light emitting units 2 are correspondingly disposed at the two sets of mounting walls 1016, and two ends of the power box 41 in the length direction respectively exceed the two sets of mounting walls 1016, so as to increase the structural strength of the base 101 in the direction. In the present embodiment, the power supply box 41 occupies 40% or more of the base 101 in the longitudinal direction. Further, the power supply box 41 occupies 50% or more of the base 101 in the longitudinal direction, and does not exceed 60% of the base 101. In the present embodiment, the second cavity 4102 of the power supply box 41 spans (corresponds to) at least one complete mounting wall 1016 in the length direction thereof, that is, the projection of the mounting wall 1016 in the length direction thereof falls entirely within the range of the second cavity 4102 of the power supply box 41. In the present embodiment, the mounting wall 1016 has a bending structure (bending structure is formed between the mounting wall 1016 and the first wall 1014 and the second wall 1015, respectively), so that the structural strength is high, and the second cavity 4102 is arranged corresponding to the mounting wall 1016, so that the deformation of the base 101 at the location can be prevented, and the deformation of the power box 41 at the location of the second cavity 4102 can be prevented, thereby improving the structural strength and reliability.

The shielding portion 7 in this embodiment has a stopping portion 71, and the stopping portion 71 extends to the end surface 1018 of the back of the base 101, and the power supply box 41 is erected on the stopping portion 71 and keeps a distance from the end surface 1018 of the back of the base 101. The power supply box 41 can be provided with a positioning groove 415, and the positioning groove 415 is matched with the stop part 71 of the shielding part 7 in a positioning way, so that the position of the power supply box 41 can be positioned.

The shielding part 7 in this embodiment is fastened to the base 101 in a snap-fit manner. Specifically, one end of the shielding part 7 is clamped into the through hole 10171, and the other end of the shielding part 7 is matched with the base 101. For example, a locking arm is provided on the base 101 to lock to the surface of the other end of the shielding portion 7.

Referring to fig. 6X and 6Y, the junction box 41 in the present embodiment is provided with a first fixing hole 413 and a second fixing hole 414. One end of the terminal plate 44 is provided with a fixing wall 441 which is caught in the fixing hole 413, and the opposite end of the terminal plate 44 is provided with a folded wall 442, and the folded wall 442 is caught in the second fixing hole 414 from the outside of the terminal box 41, thereby achieving the fixation of the terminal plate 44.

Referring to fig. 6G, the outer edge of the back surface of the base 101 in the present embodiment is provided with a mount 8 for mounting, such as mounting the LED lighting device to the outside in a hanging manner.

Referring to fig. 6Z, the mounting member 8 in this embodiment includes a first portion 81 and a second portion 82, and a main body 83, wherein the first portion 81 is connected to the base 101, and in particular, can be connected to the reinforcing structure 9 of the base 101. The first portion 81 may include a hook to hang from the base 101 and the orientation and position of the first portion 81 relative to the base 101 may be adjustable. The second portion 82 is configured for connection with an external structure. The second portion 82 includes a hook, and the second portion 82 is attached to the external structure by hanging. The main body 83 in this embodiment has flexibility, and when installed, the main body 83 can be bent, thereby facilitating connection with an external structure.

The outer edge of the back surface of the base 101 in this embodiment is provided with a reinforcing structure 9. In one embodiment, the outer edge of the base 101 is folded to form the reinforcing structure 9. The reinforcing structure 9 may be attached to the end surface 1018 of the back of the base 101, or the reinforcing structure 9 may be perpendicular to the end surface 1018 of the back of the base 101. In one embodiment, the reinforcing structure 9 is formed by providing reinforcing ribs at the outer edge. In one embodiment, the reinforcing structure 9 is formed by installing reinforcing ribs at the outer edge.

In the present embodiment, the power supply 4 is completely accommodated within a range defined by the lower end face and the upper end face in the height direction of the base 101. Therefore, the power supply 4 does not additionally occupy the height space of the LED lighting device. Thus, the height of the LED lighting device is the same as the height of the base.

In the present embodiment, in order to control the height dimension of the LED lighting apparatus as a whole, the height of the power supply box 41 occupies 80% or more of the height dimension of the LED lighting apparatus as a whole. When the power supply box 41 is a standard component or the power supply box 41 is required to ensure a space for mounting the components such as the power supply board 45 and the electronic component 42, the higher the height of the power supply box 41 is, the higher the space utilization ratio is, and the more the height of the whole lamp is favorably controlled. Further, the height of the power supply box 41 is more than 90% of the overall height dimension of the LED lighting device. Further, the height of the power supply box 41 occupies more than 95% of the overall height dimension of the LED lighting apparatus.

In this embodiment, the power box 41 is disposed between the reinforcing structure 9 and the end wall 1017 (a receiving space is formed between the reinforcing structure 9 and the end wall 1017 for placing the power source 4 so that the power source 4 does not occupy additional space), wherein at least one side of the power box 41 is connected with the reinforcing structure 9 to further strengthen the reinforcing structure 9. One side of the power supply box 41 is connected to two sets of end walls 1017, respectively, so as to increase the strength of the base 101 in the longitudinal direction of the power supply box 41.

As shown in fig. 7A to 7E, the present invention provides an LED lighting device in a seventh embodiment, and the basic structure of the LED lighting device in this embodiment can be the same as that of the aforementioned sixth embodiment. The LED lighting device in this embodiment includes a light source carrier 1, a light emitting unit 2, an optical member 3, and a power supply 4. Wherein the light emitting unit 2 is fixed on the light source carrier 1, and the optical member 3 is covered or at least partially covered on the light emitting unit 2, so that at least a part or all of the light emitted by the light emitting unit 2 is emitted from the LED lighting device through the optical member 3 when the light emitting unit is lighted. In an embodiment, when the light emitting unit 2 is lit, at least 80% of the luminous flux emitted by it is directly emitted from the LED lighting device via the optical member 3 (without reflection by the base 101 or the like). In an embodiment, when the light emitting unit 2 is lit, at least 90% of the luminous flux emitted by it is directly emitted from the LED lighting device via the optical member 3 (without reflection by the base 101 or the like). The light emitting unit 2 in this embodiment is fixed to the light source carrier in a non-detachable form (non-replaceable) (and thus may be referred to as an integrated lighting device).

Referring to fig. 7A to 7E, the light source carrier 1 in the present embodiment includes a base 101 (excluding the aforementioned detachable end cap). The base 101 defines a mounting surface to which the lighting unit 2 is directly or indirectly fixed. Further, the light emitting unit 2 includes a light plate 201 and a light emitting body 202, the light emitting body 202 is fixed on the light plate 201, and the light emitting body 202 may be an LED lamp bead. In this embodiment, the lamp panel 201 is attached to the mounting surface, for example, the lamp panel 201 is adhered to the mounting surface by using glue, or the mounting surface is provided with a mounting structure, so that the lamp panel 201 is attached to the mounting surface in a manner of clamping, fastening, screwing, magnetic attraction, etc. In this embodiment, after the lamp panel 201 is fixed on the mounting surface, the light emitting unit 2 and the base 101 form a heat conduction path. Thus, the heat generated when the light emitting unit 2 is turned on can be conducted to the base 101, and the heat is dissipated through the base 101.

In the present embodiment, the accommodating space 1012 is formed on the base 101, the light emitting unit 2 and the optical member 3 are both disposed in the accommodating space 1012, and in the height direction of the base 101, the light emitting unit 2 and the optical member 3 do not exceed the range defined by the accommodating space 1012 (the range defined by the accommodating space 1012 in the height direction of the LED lighting apparatus). The accommodating space 1012 in this embodiment may be provided with a plurality of groups to correspondingly provide a plurality of groups of the light emitting units 2 and the optical members 3. In one embodiment, as shown in fig. 7F, the accommodating spaces 1012 are provided in a group. In one embodiment, two sets of accommodating spaces 1012 are provided, and the two sets of accommodating spaces 1012 are disposed along the same direction. As shown in fig. 7G, in one embodiment, four sets of accommodating spaces 1012 are provided, two sets of accommodating spaces 1012 extend along a first direction X, and the other two sets of accommodating spaces 1012 extend along a second direction Y, where the first direction X is perpendicular or substantially perpendicular to the second direction Y, and at this time, the accommodating spaces 1012 are annular, and when four sets of optical members 3 are disposed in the accommodating spaces 1012, the four sets of optical members 3 are correspondingly configured and are annular (e.g. in a shape of "mouth").

As shown in fig. 7A to 7D, the base 101 in this embodiment includes a first wall 1014, a second wall 1015, and a mounting wall 1016, and the light-emitting unit 2 has the light panels 201 all fixed to the mounting wall 1016. In one embodiment, the width direction of the light panel 201 is completely adhered to the mounting wall 1016, i.e., two sides of the width direction of the light panel 201 are not adhered to the first wall 1014 or the second wall 1015. The first wall 1014 and the second wall 1015 in this embodiment may be planar, and when the LED lighting device is horizontally installed, the first wall 1014 and the second wall 1015 form an angle with the horizontal. The installation of the light emitting unit 2 is facilitated by the installation of the installation wall 1016 in the present embodiment, so that the light emitting body 202 can provide downward light emission after the lamp panel 201 is installed on the installation wall 1016. The attachment in this embodiment may be a general attachment, i.e., more than 30% of the area of the back surface of the light panel 201 is attached to the mounting wall 1016. The application in this embodiment may refer to the lamp panel 201 being applied to the mounting wall 1016 by another medium (e.g., glue). For example, the mounting wall 1016 is adhered to more than 30% of the back surface of the lamp panel 201 by glue, i.e., the lamp panel 201 is adhered to the mounting wall 1016. The accommodating space 1012 in this embodiment is formed by a first wall 1014, a second wall 1015 and a mounting wall 1016.

The first wall 1014 and the second wall 1015 in the present embodiment are disposed on both sides of the light emitting unit 2 and the optical member 3, respectively, and the light generated when the light emitting unit 2 is lit is emitted through the optical member 3, and at least a part of the emitted light is reflected by the first wall 1014 and the second wall 1015 and then emitted from the LED lighting device. That is, the first wall 1014 and the second wall 1015 redirect light to adjust the light emitting range and the light distribution of the LED lighting device for better optical effect.

The multiple sets of first walls 1014 in this embodiment are connected in sequence and form a cavity in the back of the base 101. In this embodiment, a plurality of (e.g., four) sets of first walls 1014 form four walls of a cavity, and a base is further provided to collectively form the cavity. The power source 4 is accommodated in the concave cavity. In one embodiment, at least 80% of the power supply 4 is located in the cavity in the height direction. In one embodiment, the power source 4 is located entirely within the cavity in the height direction. With this, the space in the height direction of the LED lighting device occupied by the power supply 4 can be reduced, even so that the space in the height direction of the LED lighting device is not occupied by the power supply 4 at all (the height of the base 101 is equal to or substantially equal to the height of the LED lighting device).

The LED lighting apparatus in the present embodiment includes only one optical member 3 (a light emitting unit 2 is provided with only one optical member 3, and when a plurality of sets of light emitting units 2 are provided, each set of light emitting units 2 is provided with only one set of optical member 3. The light is lost when passing through the medium. In the present embodiment, only one optical member 3 is provided, so that the light loss caused by the provision of the optical member can be reduced, and the light extraction efficiency can be improved. When the LED lighting device in the present embodiment includes only one optical member 3, the light extraction rate (the light extraction rate refers to the ratio of the luminous flux emitted from the LED lighting device to the luminous flux generated by the light emitting unit 2) of the LED lighting device may reach 90%, 92%, and 95% or more. The optical member 3 in this embodiment is completely accommodated in the accommodating space 1012 so that it does not occupy an additional height space of the LED lighting device. That is, the optical member 3 does not exceed the space defined by the base 101 in the height direction of the LED lighting apparatus. In this embodiment, the light emitting unit 2 and the optical member 3 at least partially overlap in the height direction of the LED lighting device to reduce the height of the light emitting unit 2 after being combined with the optical member 3, and the space between the light emitting unit 2 and the optical member 3 can be reduced to reduce the light loss of the light within the space. Further, the light emitting unit 2 does not exceed the range defined by the optical member 3 in the height direction of the LED lighting apparatus.

The area of the optical member 3 covering the front surface of the base 101 in the present embodiment is not more than 50% of the total area of the front surface of the base 101, so that the material cost of the optical member 3 is saved, and the weight of the LED lighting device is reduced. The area of the front surface of the base 101 in this embodiment refers to the projected area in the direction perpendicular to the lamp panel 201. Specifically, the area of the front surface of the chassis 101 is the length times the width of the chassis 101. While the area of the optical member 3 covering the front surface of the chassis 101 is the area occupied by the optical member 3 projected onto the chassis 101, which is actually the length times the width of the optical member. In this embodiment, the area of the optical member 3 covering the front surface of the base 101 is more than 20% of the total area of the front surface of the base 101, so as to prevent light from exiting the optical member 3 with a smaller area, thereby causing local glare.

Referring to fig. 7A to 7D, in the present embodiment, the optical member 3 includes a first optical unit 3003 and a second optical unit 3004. For satisfying the uniformity of light emission (as described in the foregoing embodiments) and the requirement of anti-glare.

The first optical unit 3003 in the present embodiment is configured to have a function of light transmission or light diffusion. The first optical unit 3003 in this embodiment may be made of transparent material, so as to have a light transmitting function. The surface of the first optical unit 3003 in this embodiment is a flat or substantially flat surface. The first optical unit 3003 in the present embodiment may include a diffusion layer to have a light diffusion function so that light is more uniformly emitted. In addition, the first optical unit 3003 may have a light diffusing function due to its own material characteristics, for example, the first optical unit 3003 may be made of a milky material (e.g., PC). The first optical unit 3003 in the present embodiment corresponds to the front surface of the light emitting unit 2. When the light emitting unit 2 is projected onto the surface of the first optical unit 3003 in the height direction of the LED lighting apparatus, the projection of the light emitting unit 2 falls entirely within the range of the first optical unit 3003. In this embodiment, at least 50% of the luminous flux generated when the light emitting unit 2 operates is directly emitted from the LED lighting device after light treatment by the first optical unit 3003.

The second optical unit 3004 in this embodiment is configured to redirect at least a portion of the light rays striking the second optical unit 3004 when the optical unit 2 is in operation. In the present embodiment, a part of the light flux generated by the light emitting unit 2 is incident on the first wall 1014 and the second wall 1015, and the light flux incident on the first wall 1014 and the second wall 1015 by the light emitting unit 2 when the second optical unit 3004 is provided is smaller than the light flux incident on the first wall 1014 and the second wall 1015 when the second optical unit 3004 is not provided. Thus, by disposing the second optical unit 3004, the light flux on the first wall 1014 or the second wall 1015 can be reduced, so as to reduce the light loss caused by reflection of the first wall 1014 or the second wall 1015. In addition, due to the arrangement of the second optical unit 3004, glare of the LED lighting device can be reduced.

In this embodiment, the second optical unit 3004 is disposed outside the first optical unit 3003 to reduce glare of the LED lighting device. In this embodiment, the second optical unit 3004 is disposed on both sides of the first optical unit 3003. In the present embodiment, the first optical unit 3003 and the second optical unit 3004 are configured by a unitary structure. For example, the optical member 3 is made of plastic material, is integrally formed by an extrusion process, and forms the first optical unit 3003 and the second optical unit 3004.

In this embodiment, the second optical unit 3004 includes an incident surface 30041 and an emitting portion 30042. Wherein the entrance face 30041 is configured as a substantially planar surface. In one embodiment, the entrance face 30041 is configured as a flat surface. In one embodiment, the incident surface 30041 is configured as a cambered surface. In one embodiment, the entrance face 30041 is configured as a combination of a flat surface and a curved surface. To reduce the emission at the entrance face 30041, an optical element may also be provided at the entrance face 30041 to reduce the reflection described above. For example, an antireflection film may be provided at the incident surface 30041.

The exit portion 30042 in this embodiment includes a plurality of light directing structures 30043 for defining light angles to reduce glare. The material of the redirecting structure 30043 in this embodiment may be the same as that of the first optical unit 3003. And the refractive index of the redirecting structure 30043 is not less than the refractive index of the first optical element 3003. The arrangement directions of the redirecting structures 30043 on the same emitting portion 30042 are all different.

The cross-sectional shape of the redirecting structure 30043 in this embodiment is configured as a triangle or substantially triangle structure.

As shown in fig. 8A to 8C, the present invention provides an LED lighting device in an eighth embodiment, and the basic structure of the LED lighting device in this embodiment can be the same as that of the aforementioned sixth embodiment. The LED lighting device in this embodiment includes a light source carrier 1, a light emitting unit 2, an optical member 3, and a power supply 4. Wherein the light emitting unit 2 is fixed on the light source carrier 1, and the optical member 3 is covered or at least partially covered on the light emitting unit 2, so that at least a part or all of the light emitted by the light emitting unit 2 is emitted from the LED lighting device through the optical member 3 when the light emitting unit is lighted. In an embodiment, when the light emitting unit 2 is lit, at least 70% of the luminous flux emitted by it is directly emitted from the LED lighting device via the optical member 3 (without reflection by the base 101 or the like). In an embodiment, when the light emitting unit 2 is turned on, at least 5% of the luminous flux emitted by the light emitting unit is reflected by the base 101 and then emitted, so that the base 101 is illuminated, and the visual effect is improved. The light emitting unit 2 in this embodiment is fixed to the light source carrier 1 in a non-detachable form (non-replaceable) (and thus may be referred to as an integrated lighting device).

Referring to fig. 8A to 8D, the light source carrier 1 in the present embodiment includes a base 101 (excluding the aforementioned detachable end cap), and the base 101 is constructed as a unitary structure. The base 101 defines a mounting surface 111, to which mounting surface 111 the lighting unit 2 is directly or indirectly fixed. Further, the light emitting unit 2 includes a light plate 201 and a light emitting body 202, the light emitting body 202 is fixed on the light plate 201, and the light emitting body 202 may be an LED lamp bead. In this embodiment, the lamp panel 201 is attached to the mounting surface 111, for example, the lamp panel 201 is adhered to the mounting surface 111 by using glue, or the mounting surface 111 is provided with a mounting structure, so that the lamp panel 201 is attached to the mounting surface in a manner of clamping, fastening, screwing, magnetic attraction, etc. In this embodiment, after the lamp panel 201 is fixed on the mounting surface 111, the light emitting unit 2 and the base 101 form a heat conduction path. Thus, the heat generated when the light emitting unit 2 is turned on can be conducted to the base 101, and the heat is dissipated through the base 101.

In the present embodiment, since the base 101 is inclined, the accommodating space 1012 is formed on the base 101, the light emitting unit 2 and the optical member 3 are disposed in the accommodating space 1012, and in the height direction of the base 101, the light emitting unit 2 and the optical member 3 do not exceed the range defined by the accommodating space 1012 (the range defined by the accommodating space 1012 in the height/thickness direction of the LED lighting apparatus). The accommodating space 1012 in this embodiment may be provided with a plurality of groups to correspondingly provide a plurality of groups of the light emitting units 2 and the optical members 3. In one embodiment, two sets of accommodating spaces 1012 are provided, and the two sets of accommodating spaces 1012 are disposed along the same direction.

As shown in fig. 8A to 8E, the base 101 in this embodiment includes a first wall 1014 and a second wall 1015 disposed in an inclined manner, and the first wall 1014 and the second wall 1015 can reflect at least a portion of light generated when the light emitting unit 2 is operated. Specifically, the first wall 1014 is configured to reflect light generated when one set of light emitting units 2 is operated (generally speaking, the first wall 1014 reflects only light generated when the corresponding light reflecting unit 2 is operated), and the second wall 1015 is configured to reflect light generated when the other set of light emitting units 2 is operated (generally speaking, the second wall 1015 reflects only light generated when the corresponding light reflecting unit 2 is operated).

In this embodiment, a protrusion 1010 is formed on the base 101 in a bending manner, wherein the protrusion 1010 has a first side 10101 and a second side 10102, wherein a set of accommodating spaces 1012 are formed between the first side 10101 and the first wall 1014, and another set of accommodating spaces 1012 are formed between the second side 10102 and the second wall 1015. The male part 1010 in the present embodiment further has a connection surface 10103, and the first side surface 10101 and the second side surface 10102 are connected by the connection surface 10103. After the light emitting unit 2 and the optical member 3 are disposed in the accommodating space 1012, the light emitting unit 2 and the optical member 3 do not exceed the position defined by the connection surface 10103 on the front surface (the side having the light emitting unit 2) of the LED lighting apparatus.

The first side 10101 and the second side 10102 in the present embodiment form a power supply accommodating groove 10104 on the back surface (the side without the light emitting unit 2) of the LED lighting device, and the power supply 4 is disposed in the power supply accommodating groove 10104. And the power supply 4 does not exceed the range defined by the base 101 (the range defined by the power supply accommodating groove 10104) in the height direction of the LED lighting device, thereby controlling the height of the whole lamp. In the present embodiment, in order to control the height dimension of the LED lighting apparatus as a whole, the height of the power supply box 4 occupies 80% or more of the height dimension of the LED lighting apparatus as a whole. When the power supply box 41 of the power supply 4 is a standard component or the power supply box 41 is required to ensure a space for installing components such as a power panel and electronic components, the higher the space utilization ratio of the power supply box 41 is, the more the height of the power supply box 41 is occupied in the overall height dimension of the LED lighting apparatus, and the more the control of the height of the entire lamp is facilitated.

The LED lighting apparatus in the present embodiment may include only one optical member 3 (a light emitting unit 2 is configured only one optical member 3, and when a plurality of groups of light emitting units 2 are provided, each group of light emitting units 2 is configured only one group of optical members 3 correspondingly). The light beam can be transmitted through the medium, but in the embodiment, only one optical component 3 is arranged, so that the light loss caused by arranging the optical component can be reduced, and the light emitting efficiency is improved. When the LED lighting device in the present embodiment includes only one optical member 3, the light extraction rate (the light extraction rate refers to the ratio of the luminous flux emitted from the LED lighting device to the luminous flux generated by the light emitting unit 2) of the LED lighting device may reach 90%, 92%, and 95% or more. The optical member 3 in this embodiment is completely accommodated in the accommodating space 1012 so that it does not occupy an additional height space of the LED lighting device. That is, the optical member 3 does not exceed the space defined by the base 101 in the height direction of the LED lighting apparatus. In this embodiment, the light emitting unit 2 and the optical member 3 at least partially overlap in the height direction of the LED lighting device to reduce the height of the light emitting unit 2 after being combined with the optical member 3, and the space between the light emitting unit 2 and the optical member 3 can be reduced to reduce the light loss of the light within the space. Further, the light emitting unit 2 does not exceed the range defined by the optical member 3 in the height direction of the LED lighting apparatus. In some embodiments, the optical member 3 may be configured only in one group, and the optical member 3 corresponds to one or more groups of the light emitting units 2.

The area of the optical member 3 covering the front surface of the base 101 in the present embodiment is not more than 50% of the total area of the front surface of the base 101, so that the material cost of the optical member 3 is saved, and the weight of the LED lighting device is reduced. The area of the front surface of the base 101 in this embodiment refers to the projected area in the direction perpendicular to the lamp panel 201. Specifically, the area of the front surface of the chassis 101 is the length times the width of the chassis 101. While the area of the optical member 3 covering the front surface of the chassis 101 is the area occupied by the optical member 3 projected onto the chassis 101, which is actually the length times the width of the optical member. In this embodiment, the area of the optical member 3 covering the front surface of the base 101 is more than 40% of the total area of the front surface of the base 101, so as to prevent light from exiting the optical member 3 with a smaller area, thereby causing local glare.

The optical member 3 in the present embodiment may be configured to have a light diffusing function to make the light emission more uniform. For example, the optical member 3 has a plate-like structure, and its own material has a light transmission and light diffusion function, so that the optical member 3 has a light diffusion function. For another example, the optical member 3 has a plate-like structure having a light transmitting function, and a diffusion layer is provided on an outer side surface or an inner side surface of the optical member 3 so that the optical member 3 has a light diffusing function.

As shown in fig. 8A to 8F, in order to increase the structural strength of the LED lighting device, a reinforcing structure 9 may also be provided. The outer edge of the base 101 in this embodiment is bent to form a plurality of sets of side walls (4 sets of side walls in this embodiment). The reinforcing structure 9 includes a first reinforcing member 91, and the first reinforcing member 91 connects at least two sets of side walls to increase the structural strength of the base 101. Further, the first reinforcement 91 connects all sidewalls of the outer edge of the base 101. For example, the first reinforcement 91 is a ring-shaped frame, which is disposed on the opposite inner sides of the sidewall, so as to increase the overall structural strength of the base 101 and improve the anti-twisting performance. In one embodiment, the wall thickness of the first stiffener 91 is greater than the wall thickness of the sidewall. In one embodiment, the first stiffener 91 is formed as a unitary structure.

The reinforcing structure 9 may further comprise a second reinforcing member 92, where the second reinforcing member 92 is at least partially attached to the back surface of the base 101. The second reinforcement 92 connects both the first wall 1014 and the second wall 1015. Both ends of the second reinforcement 92 may be attached to the first reinforcement 91. The second reinforcing member 92 has a strip-shaped plate-like structure, and the surface thereof may be provided with reinforcing ribs.

The reinforcing structure 9 may further include a third reinforcing member 93, the third reinforcing member 93 being formed at the mounting surface 111. Specifically, the mounting surface 111 has a first surface 1111 and a second surface 1112, wherein the lamp panel 201 is attached to the first surface 1111, and the lamp panel 201 is spaced from the second surface 1112. In another aspect, the first surface 1111 protrudes from the second surface 1112, and the structure forms the third reinforcement 93. The third reinforcing member 93 enhances the torsional property at the mounting surface 111, ensures that the light emitters 202 are arranged substantially on the same plane, and emits light in a vertically downward direction of the LED lighting device (when the LED lighting device is in a normal mounted state).

As shown in fig. 9A to 9D, the present invention provides an LED lighting device in a ninth embodiment, and the basic structure of the LED lighting device in this embodiment can be the same as that of the foregoing embodiment. The LED lighting device in the present embodiment includes a base 101, a light emitting unit 2, an optical member 3, and a power supply 4. In addition, the present embodiment further includes a light source carrier 1, where the light source carrier 1 is fixed on the base 101. Specifically, in some embodiments, the light source carrier 1 may be fixed to the base 101 by a fastener, such as a screw, a rivet, or the like. In other embodiments, the light source carrier 1 may be directly welded, adhered or fastened to the base 101, so that the light source carrier 1 is detachably or non-detachably fixed to the base 101. The light source carrier 1 has a connecting wall 13, and the connecting wall 13 is attached to the surface of the base 101 to increase the contact area between the two. When the LED lighting device is in an operating state (lit), so that heat on the light source carrier 1 can be quickly conducted to the base 101. The light source carrier 1 is connected to the base 101 through a connecting wall 13.

The light emitting unit 2 in this embodiment is fixed to the light source carrier 1, and the optical member 3 is disposed corresponding to the light emitting unit 2 so that at least a part or all of the light generated when the light emitting unit 2 is operated passes through the optical member 3, thereby redirecting the light.

In an embodiment, at least 70% of the light flux emitted through the optical member 3 is emitted from the lamp after one or more reflections. In an embodiment, at least 80% of the light flux emitted through the optical member 3 is emitted from the lamp after one or more reflections. In an embodiment, at least 90% of the light flux emitted through the optical member 3 is emitted from the lamp after one or more reflections. Thus, direct light emission through the optical member 3 is reduced, local glare is avoided, and glare is reduced.

In an embodiment, at least 30% of the light flux emitted through the optical member 3 is emitted from the LED lighting device directly by reflection of the reflective surface 1011 on the base 101. In an embodiment, at least 40% of the light flux emitted through the optical member 3 is emitted from the LED lighting device directly by reflection of the reflective surface 1011 on the base 101. Light is emitted from the lamp by primary reflection, so that the light loss during reflection can be controlled, and the light emitting efficiency can be improved.

In this embodiment, the light source carrier 1 has a first mounting position, the light emitting unit 2 includes a light plate 201 and a light emitter 202, the light emitter 202 is fixed on the light plate 201, and the light emitter 202 may be an LED light bead. In this embodiment, the light panel 201 is attached to the surface of the light source carrier 1 at the first mounting position to fix the position of the light emitting unit 2, for example, the light panel 201 is adhered to the surface of the light source carrier 1 at the first mounting position by using glue, or the surface of the light source carrier 1 at the first mounting position is provided with a mounting structure to attach the light panel 201 to the surface of the light source carrier 1 at the first mounting position in a manner of clamping, fastening, screwing, magnetic attraction, or the like. In this embodiment, after the lamp panel 201 is fixed on the surface of the light source carrier 1 at the first mounting position, the light emitting unit 2 and the light source carrier 1 form a heat conduction path. Accordingly, the heat generated when the light emitting unit 2 is turned on can be conducted to the light source carrier 1, and the heat is dissipated by the first carrier 1 (a part of the heat is directly dissipated in the first carrier 1, and another part of the heat is conducted to the base 101 for dissipating the heat). The light source carrier 1 in the present embodiment may be made of metal, such as aluminum, to improve heat dissipation efficiency.

In the present embodiment, the light source carrying part 1 has a second mounting position at which the optical member 3 is disposed to fix the position of the optical member 3. In one embodiment, the optical member 3 may be adhered to the surface of the light source carrier 1 at the second mounting position using glue. In some embodiments, the second mounting position is provided with a mounting structure, so that the optical member 3 is attached to the surface of the light source bearing part 1 at the second mounting position in a clamping, fastening, screwing, magnetic attraction, and other manners.

In an embodiment, the optical member 3 comprises a lens (fresnel lens) to redirect the light generated by the operation of the light emitting unit 2 so as to project more light directly onto the reflective surface of the base 101.

The light source carrying portion 1 is provided with a light blocking portion 11, and at least a part of the light emitted through the optical member 3 is incident on the light blocking portion 11 and projected onto the reflective surface of the base 101 by reflection of the light blocking portion 11. By providing the light blocking portion 11, the luminous flux directly emitted after passing through the optical member 3 can be reduced to reduce glare and avoid local glare. In the height direction of the LED lamp, when the light emitting unit 2 and/or the optical member 3 are projected onto the plane where the light shielding portion 11 is located, the light falls completely within the range of the plane where the light shielding portion 11 is located. Thus, the light-emitting unit 2 and/or the optical member are prevented from being exposed, and the attractiveness is improved.

In one embodiment, when the light emitting unit 2 is operated, the light flux incident on the light blocking portion 11 is not more than 40% of the light flux passing through the optical member 3, so as to control the light loss caused by secondary reflection. In this embodiment, the luminous flux emitted from the LED lamp after the primary reflection is larger than the luminous flux emitted from the LED lamp after the secondary reflection by the optical member 3. By controlling the luminous flux of secondary reflection, the light loss caused by reflection can be reduced, and the light-emitting efficiency can be improved.

The light emitting unit 2 and the optical member 3 are provided with two groups, and are symmetrically or substantially symmetrically disposed on the light source bearing portion 1. The light source bearing part 1 is formed by an integral structure and is provided with an accommodating space 12, and the power supply 4 is arranged in the accommodating space 12. The power supply 4 does not exceed the range defined by the base 101 in the height direction of the LED lighting device, so that the power supply 4 does not occupy an extra height of the luminaire. Likewise, the light source carrier 1 may not exceed the range defined by the base 101 in the height direction of the LED lighting device, so that the light source carrier 1 does not occupy the extra height of the lamp.

The light source bearing part 1 extends along the length direction of the LED lighting equipment and is strip-shaped. The ratio of the dimension of the light source carrying portion 1 in the width direction of the LED lighting apparatus to the width dimension of the LED lighting apparatus (i.e., the width dimension of the base 101) is not more than 0.2. Since the light source carrying part 1 is a non-light-emitting area, the width of the light source carrying part 1 is reduced, and the area of the light emitting area of the LED lighting device can be correspondingly increased.

The surface illuminance of at least 50%, 60%, 70%, 80% or 90% of the area on the reflective surface 1011 (excluding the portion blocked by the light source carrying part 1) of the base 101 reaches 6500lux to increase the light emitting area of the LED lighting apparatus. The same luminous flux of the emergent light is emitted through a larger emergent area, so that the emergent light is more uniform.

In the width direction of the LED lighting apparatus, a plurality of 50mm wide light emitting areas are sequentially cut out on the reflecting surface 1011 of the base 101, adjacent light emitting areas being adjacent. The ratio of the luminous flux emitted from the surface of any one luminous area to the luminous flux emitted from the surface of the adjacent luminous area is 0.6-1.5. So that the LED lighting device has a more uniform transition of the outgoing light intensity in the width direction thereof to prevent a sharp contrast of illuminance on the base 101.

The power supply 4 includes a wiring board 401, and the electronic components of the power supply 4 are disposed on the front surface (the surface having the light emitting unit 2) of the base 101, and the wiring board 401 is disposed on the back surface of the base 101, so that external power is accessed through the wiring board 401. The wiring board 401 is disposed not to exceed the height range defined by the base 101 so that the wiring board 401 does not occupy an additional height space. Specifically, the back surface of the base 101 has a recess 1012, and at least part or all of the wiring board 401 in the height direction of the base 101 is accommodated in the recess 1012.

As shown in fig. 10A to 10C and fig. 11A to 11C, in a tenth embodiment, the present invention provides an LED lighting apparatus, including: a luminaire and a lighting unit 2. Wherein the luminaire comprises a light source carrier 1. The light emitting unit 2 is fixed to the light source carrier 1. The lighting unit 2 is detachably fastened to the light source carrier 1, whereby the lighting unit 2 can be replaced and can thus be referred to as a two-piece LED lighting device. The lamps and lanterns can be separated from the light-emitting units 2 during packaging, transportation and selling. The light emitting unit 2 may be a T5 straight tube lamp or a T8 straight tube lamp.

The light source carrier 1 of the present invention includes a base 11, the base 11 extends along a first direction X, the base 11 defines a accommodating space for accommodating the light emitting unit 2, and after the light emitting unit 2 is disposed in the accommodating space, the light emitting unit 2 does not exceed a range defined by the accommodating space in a height direction of the base 11. The base 11 has a bottom 111 and side portions 112 disposed on two sides of the bottom, and the bottom 111 and the side portions 112 form a receiving space of the base 11.

The bottom 111 and the side 112 of the present invention form an inner contour 113 or a part of an inner contour of the base 11 at an inner side (a side close to the receiving space) of the base 11, and the bottom 111 and the side 112 form an outer contour 114 or a part of an outer contour 114 of the base 11 at an outer side of the base 11, wherein the inner contour 113 is matched with the outer contour 114. In other words, the two sets of pedestals 11 may overlap, and in the height direction of the pedestals 11, the two sets of pedestals 11 at least partially overlap. For example, the height of the base 11 is H, and the height of the two groups of bases 11 after being stacked is less than 2H. Further, the height of the two groups of bases 11 after being stacked is less than 1.6H. Further, the height of the two groups of bases 11 after being stacked is less than 1.5, 1.4, 1.3, 1.2 or 1.1H. Thus, basic conditions are provided for two groups of LED lighting devices.

The light source carrier of the present invention further includes an end cap 12, and the end caps 12 are provided with two groups and are respectively provided at both ends of the base 11 in the first direction X. The light emitting assembly 2 is detachably fixed to the end cap 12. The light emitting assembly 2 includes a lamp 21, a lamp panel 22, a light emitting body 23, a lamp cap 24, and a conductive pin 25 disposed on the lamp cap 24, wherein the light emitting body 23 may be an LED lamp bead, and the light emitting body 23 is fixed on the lamp panel 22. The lamp panel 22 is fixed to the inner peripheral surface of the lamp tube 21. The lamp caps 24 are fixed to both ends of the lamp tube 21. The lighting assembly 2 is fixed to the end cap 12 by its conductive pins 25.

Referring to fig. 10A to 10N, in one embodiment, the end cap 12 includes a first member 121, and the first member 121 is fixed to the base 11 and can limit the distortion of the base 11 in a second direction Y. The first member 121 in this embodiment includes a mounting portion 1211 (e.g., a lamp socket). The first member 121 in this embodiment may be fastened to the base 11 by means of a clip, a buckle, a socket, or a bolt.

The first member 121 in one embodiment defines a cavity 1212 within which a power source 4 (not shown) may be disposed within the cavity 1212. The first member 121 in this embodiment does not exceed the range defined by the base 11 in the height direction of the lamp (or the LED lighting device). In some embodiments, if the first member 121 is within 3mm of the range defined by the base 11 in the height direction of the luminaire (or LED lighting device), it may also be calculated that the first member 121 does not exceed the range defined by the base 11 in the height direction of the luminaire (or LED lighting device). By arranging the power supply 4 in the first member 121, the power supply 4 does not occupy the height space of the lamp (or the LED lighting device) additionally, which is beneficial to controlling the height of the lamp (or the LED lighting device).

Referring to fig. 11A to 11C, in another embodiment, the first member 121 may not have the accommodating cavity 1212, and the first member 121 only serves to mount the fixed light emitting unit 2 and strengthen the structure of the base 11. In this embodiment, the bottom 111 of the base 11 is provided with a cover 116, and a receiving cavity is formed between the cover 116 and the bottom 111 for placing a power source. The cover 116 in this embodiment is located in the accommodating space of the base 11, and does not occupy the entire height space of the base 11. The routing can be completed in the cover 116 in this embodiment, so that the threading part is not required. In addition, the side walls of the enclosure 116 may be configured to have a reflective function.

Referring to fig. 10C to fig. 10G, in an embodiment, the base 11 is provided with a threading portion 115, the threading portion 115 is disposed to extend along the first direction X, and has a threading hole 1151 or a threading slot, and two ends of the threading hole 1151 or the threading slot respectively correspond to the accommodating cavities 1212 of the first members 121 on two sides. The wire holes 1151 or slots are used for routing wires (e.g., wires or FPC boards) for connecting electrical structures (e.g., power, terminals, wires from a lamp socket, etc.) within the housing cavity 1212 of the two sets of first members 121. Through the threading part 115, hidden wiring can be realized, and the beautiful appearance is ensured. The threading part 115 may be formed by directly bending the bottom 111 of the base 11 to form a threading groove, or may be formed by fixing a separate threading part 115 to the bottom 111 of the base 11. If the threading portion 115 is a separate component, it may be secured to the base 11 by bonding, clamping, plugging, fastening, or by bolting. In other embodiments, the threading unit 5 may be disposed on the other side of the base 11 opposite to the light emitting unit 2. In other embodiments, the threading unit may be omitted when the wires are routed along the back of the base 11 (along the other side of the base 11 with respect to the light emitting unit 2). But the wires run along the back of the base 11, which additionally increases the overall height of the LED lighting device.

Referring to fig. 10C and 10J, the first member 121 has an abutment surface 1213, and when two sets of lamps (or LED lighting devices) are stacked, the bottom 111 of the base 11 of one set of lamps (or LED lighting devices) abuts against the abutment surface 1213 of the other set of lamps (or LED lighting devices). The abutment surface 1213 in the present embodiment exceeds the light emitting unit 2 in the height direction of the light emitting unit 2, and therefore, when the light emitting unit 2 is mounted to a lamp, and the lamps are stacked, the abutment surface 1213 can function to protect the light emitting unit 2 and prevent another group of lamps from pressing the light emitting unit 2. In this embodiment, the height of the LED lighting device is W, the height of the two groups of LED lighting devices after being stacked is less than 2W, and further, the height of the two groups of LED lighting devices after being stacked is less than 1.8, 1.7, 1.6 or 1.5W. Further, since the first member 121 needs to be provided with the mounting portion 1211, the height of the first member 121 needs to be ensured, and thus the height of the two sets of LED lighting devices after being stacked is greater than 1.3W and less than 1.6W.

Referring to fig. 10C, in one embodiment, the end cap 12 further includes a second member 122, where the second member 122 is detachably fixed to the first member 121 or the base 11 (when the lamps or LED lighting devices are stacked, the second member 122 needs to be removed first). Specifically, the second member 122 is detachably fixed to the first member 121. The second member 122 may be detachably fixed to the first member 121 by a fastening manner. The second member 122 is configured for connection with the keel, i.e. for completing the installation of the LED lighting device.

Referring to fig. 10A to 10C, in one embodiment, the first member 121 has a groove 1214 thereon, and the end of the light emitting unit 2 is located in the groove 1214. When the light emitting unit 2 adopts a standard length, by providing the groove portion 1214 on the first member 121, the space occupied by the end portion 12 in the first direction X of the LED lighting apparatus can be reduced. Correspondingly, the second member 122 has a slot therein corresponding to the slot 1214.

Referring to fig. 11A to 11C, in another embodiment, since the first member 121 does not have the accommodating cavity 1212, the first member 121 only serves to mount and fix the light emitting unit 2 and strengthen the structure of the base 11. The first member 121 itself has a small size in the first direction X, and therefore the groove 1214 described above may not be provided. Correspondingly, no slot is needed on the second member 122.

Referring to fig. 10A and 11A, the LED lighting device of the present invention may further comprise an optical unit 3, the optical unit 3 may configure the degree of reflection, refraction and/or scattering to provide any suitable combination of reflection, refraction and/or scattering. The optical unit 3 may also be configured to increase the output luminous flux.

Referring to fig. 10A to 10C, in one embodiment, the optical unit 3 includes a panel 31, the panel 31 is disposed on the base 11, and the panel 31 does not exceed a range defined by the first member 121 in a height direction of the base 11. Further, the panel 31 does not exceed the abutment surface 1213 of the first member 121 in the height direction of the base 11. When the panel 31 is mounted on the lamps, and then the lamps are stacked, the abutting surface 1213 can play a role of protecting the panel 31, so that the other group of lamps is prevented from pressing the panel 31.

The panel 31 has an open state in which the light emitting unit 2 is exposed to the outside, and a closed state in which the light emitting unit 2 is covered by the panel and the panel provides optical processing of light emitted from the light emitting unit 2. The panel 31 in the present embodiment is configured to have a light diffusion effect, so that the light is more uniform, thereby improving the departure effect and reducing the glare.

Referring to fig. 10A to 10F, the panel 31 is disposed on the base 11 through the connection unit 5. Specifically, the connection unit 5 includes a hinge 51 and a fixing unit 52, and the panel 31 is rotatably connected to the base 11 through the hinge 51 with respect to the base 11. The fixing unit 52 has an elastic arm 521 and an engagement portion 522, and the elastic arm 521 elastically deforms to change the position of the engagement portion 522, thereby fixing or releasing the panel.

The fastening portion 522 has a supporting portion 5221, and in the closed state, one side edge of the panel 3 is supported by the supporting portion 5221. The fixing unit 52 in this embodiment further includes an actuating portion 523, and in the closed state, the actuating portion 523 is located outside the panel 31 and can control the fixing unit 52 to release the panel 31. The fixing unit 52 in this embodiment is an elastic sheet integrally formed.

The actuating portion 53 has a transition portion 5231, when the panel 31 is switched from the open state to the closed state, the panel 31 is forced to abut against the transition portion 5231, and when further forced, the panel 31 forces the fixing unit 52 to elastically deform and finally pass through the buckling portion 522 to reach the closed position. The operation portion 523 is not operated in this process to make the operation simpler.

Referring to fig. 10A to 10C, and 11A to 11C, the optical unit 3 of the present invention may further include a reflection part 32, and the reflection part 32 is disposed at one side or both sides of the light emitting unit 2 in the second direction Y of the LED lighting device. The reflecting portion 32 includes a first reflecting portion 321. In one embodiment, the first reflecting portion 321 is formed on the inner surface of the side portion 112 of the base 11. The reflecting portion 32 may further include a second reflecting portion 322. In one embodiment, the second reflecting portion 322 is formed on the bottom 111 of the base 11. Specifically, the bottom of the base 11 is bent to form a bending portion 1111, and the second reflecting portion 322 is formed on the bending portion 1111. One side of the bending portion 1111 forms a receiving groove 1112, and the power source 4, the connection terminal or the wire may be disposed in the receiving groove 1112, so that the components do not occupy the height space of the LED lighting device. In other embodiments, the second reflecting portion 322 may also be formed on the threading portion 115. Referring to fig. 11A to 11C, in another embodiment, a second reflecting portion 322 is formed on the cover 116.

Referring to fig. 11A to 11C, in another embodiment, the optical unit 3 may include an optical member 33, and the optical member 33 is disposed on the light emitting unit 2 and plays a role of blocking light to reduce the glare value of the LED lighting device.

Specifically, the optical member 33 is a spiral sheet-like body and is wound around the outer peripheral surface of the lamp 21 of the light-emitting unit 2 in a spiral manner. The surface of the optical member 33 is configured to have a reflection function. Both ends of the optical member 33 may be connected to the end caps 12 of both sides, respectively.

The optical member 33 is made of a flexible material so that the spiral sheet can be stretched or folded. Accordingly, the optical member 33 can be folded when not in use to reduce the space occupied when stored. When the light-emitting unit 2 is mounted, the optical member 33 is then sleeved on the light-emitting unit 2, and when the light-emitting unit 2 is mounted to the lamp, both ends of the optical member 33 are respectively fixed to the end caps 12 on both sides.

As shown in fig. 12A to 12C, the present invention provides an LED lamp in an eleventh embodiment, wherein the LED lamp is a linear lamp, for example, a suspended linear lighting lamp. The LED lamp comprises: a supporting unit 1, a photovoltaic module 2 and a wiring unit 3. Wherein the optoelectronic module 2 is connected to the support unit 1 in a replaceable (detachable) manner, so that the optoelectronic module 2 can be replaced for the LED luminaire. If the photoelectric module 2 is damaged, only part of the photoelectric module 2 can be replaced, and compared with replacing the whole lamp, the replacement cost can be reduced. The wiring unit 3 is fixed to the supporting unit 1 for connection to an external power source or to a mains supply.

The supporting unit 1 in this embodiment has a front surface and a back surface, wherein one side on which the photovoltaic module 2 is disposed is defined as the front surface, and the opposite side is the back surface, and the wiring unit 3 is disposed on the back surface of the supporting unit 2. In the present embodiment, the photovoltaic module 2 does not exceed the range defined by the supporting unit 1 in the thickness direction of the LED lamp, that is, the photovoltaic module does not occupy an additional thickness dimension.

The supporting unit 1 in the present embodiment includes a main body portion 11 and end portions 12, wherein the photovoltaic module 2 is disposed extending in a length direction (first direction X) of the main body portion 11, and both ends of the photovoltaic module 2 are structurally connected by the end portions 12. The main body 11 in the present embodiment may be configured with functions such as heat dissipation and optics, or may provide structural strength, installation space, and the like.

Specifically, the main body 11 in this embodiment is configured with a mounting surface 111, the mounting surface 111 is a plane or a substantially plane, and the photovoltaic module 2 may be mounted or fixed on the mounting surface 111, or at least a portion of the photovoltaic module 2 is attached to the mounting surface 104. The main body 11 is disposed on one side or both sides of the mounting surface 111 in a second direction Y, the wing 112 is connected to the mounting surface 111 by a bending portion 113, and the wing 112 and the mounting surface 111 extend on different surfaces by the bending portion 113 to improve structural strength, and at this time, the bending portion 113 acts as a reinforcing rib. The wing 112 may be configured to be planar, whereby the wing 112 may be at an angle to the mounting surface 11, the angle being between 160 degrees and 175 degrees.

As shown in fig. 12A to 12G, the end portion 12 and the main body 11 in the present embodiment are integrally formed, for example, a metal sheet is used, and the end cap 12 and the main body 11 are directly formed by machining, that is, the supporting unit 1 is made of a metal material, so as to provide better structural strength and heat dissipation performance. The end 12 is provided with a first positioning unit 121, and the end of the photovoltaic module 2 is provided with a second positioning unit 201 matching the first positioning unit 121. By the cooperation of the first positioning unit 121 and the second positioning unit 201, detachable mounting of the optoelectronic module 2 can be achieved.

In this embodiment, the first positioning unit 121 includes a hole 1211 and a plugging hole 1212, the second positioning unit 201 includes a fastening portion 2011, one end of the photovoltaic module 2 is directly fastened into the hole 1211, and the fastening portion 2011 (the end with the second positioning unit 201 disposed thereon) is fastened into the plugging hole 1212 for fixing. In other embodiments, the first positioning unit 121 and the second positioning unit 201 may be implemented by other structures in the prior art, such as a snap-fit structure, a threaded connection structure, or a latch structure.

As shown in fig. 12A to 12C, in this embodiment, the outer edge of the end portion 12 is bent toward the back of the supporting unit 1 to form a first reinforcing member 122, the outer edge of the main body portion 11 is bent toward the back of the supporting unit 1 to form a second reinforcing member 13, and the first reinforcing member 122 is connected to the second reinforcing member 13, so that the first reinforcing member 122 and the second reinforcing member 13 integrally form a ring structure to increase the structural strength.

In this embodiment, a receiving space 101 is formed between the first reinforcing member 122 of the end portion 12 and the main body portion 1 for mounting the wiring unit 3.

As shown in fig. 12A to 12J, at least one end of the photovoltaic module 2 in the present embodiment enters the accommodating space 101 and is electrically connected to the wiring unit 3. The wiring unit 3 in the present embodiment includes a wiring portion 31, a first wiring terminal 32, and a wiring box 33, wherein the wiring portion 31 is disposed on the wiring box 33, the wiring box 33 is fixed on the supporting unit 1, and the first wiring terminal 32 is disposed in the wiring box 33. One end of the photoelectric module 2 is provided with a second wiring terminal 202, and when the first wiring terminal 32 is in butt joint with the second wiring terminal 202, the photoelectric module 2 is electrically connected with the wiring unit 3. One end of the photovoltaic module 2 located in the accommodating space 101 is shielded by the junction box 33, so that the photovoltaic module 2 is not exposed. Specifically, the junction box 33 has a receiving cavity 331, and a side of the receiving cavity 333 facing the end of the photovoltaic module 2 is opened, so that the end of the photovoltaic module 2 enters the receiving cavity 333. The first connecting terminal 32 and the second connecting terminal 202 are disposed in the accommodating cavity 331.

The junction box 33 may be fixed to the supporting unit 1 by means of adhesion, clamping, fastening, bolting, or the like. In this embodiment, the junction box 33 is provided with a plurality of fastening holes 332, and the supporting unit 1 is provided with a plurality of fastening portions 102 matching with the fastening holes 332 to achieve fastening. The fastening portion 102 is integrally formed on the first reinforcing member 122.

As shown in fig. 12G and 12J to 12L, the photovoltaic module 2 in the present embodiment includes a support unit 21, a light emitting unit 22, an optical member 23, and a power module, wherein the support unit 21 includes a support base 211 and end caps 212 disposed at two ends of the support base 211. The supporting unit 21 is internally provided with a mounting cavity 2101 for placing a power module. The mounting cavity 2101 may be formed in the end cap 212 or the support 211, or may be formed by the end cap 212 and the support 211 together. The second positioning unit 201 in this embodiment is formed on the end cap 212.

The light emitting unit 22 in this embodiment includes a substrate 221 and a light emitting body 222, the light emitting body 222 is fixed on the substrate 221, and the light emitting body 222 may be an LED lamp bead. The substrate 221 is adhered to the surface of the support base 211, for example, the substrate 221 is adhered to the surface of the support base 211 by using glue, or the surface of the support base 211 is provided with a mounting structure, so that the substrate 221 is adhered to the surface of the support base 211 in a clamping, buckling, screwing, magnetic attraction manner and the like.

In the present embodiment, the light emitter 222 is configured with a first light emitter 2221 and a second light emitter 2222, wherein the first light emitter 2221 and the second light emitter 2222 can be configured to emit light with different wavelengths, so as to provide a basis for dimming and color mixing of the LED lamp. For example, the first light emitter 2221 will emit light having a dominant wavelength from 435nm to 470nm when illuminated, and the second light emitter 2222 will emit light having a dominant wavelength from 590nm to 640nm when illuminated.

In the present embodiment, the optical member 23 is covered on the light emitting unit 22, and the optical member 23 is fixed on the supporting unit 21. The optical member 23 in the present embodiment covers substantially only the substrate 221, and does not additionally cover the area of the supporting unit 1. For example, the area of the optical member 23 covering the front face of the supporting unit 1 occupies not more than 20% of the total area of the front face of the supporting unit 1. The area of the front surface of the supporting unit 1 in this embodiment refers to the projected area in the direction perpendicular to the substrate 221. Specifically, the area of the front surface of the supporting unit 1 is the length times the width of the supporting unit 1. While the area of the optical member 23 covering the front surface of the supporting unit 1 is the area occupied by the optical member 23 projected onto the supporting unit 1, which is actually the length multiplied by the width of the optical member 23. In the present embodiment, the ratio of the width of the optical member 23 to the width of the substrate 221 is set to be 1-2 in order to provide the coverage of the substrate 221 without covering too much area of the front surface of the supporting unit 1. Further, the ratio of the width of the optical member 23 to the width of the substrate 221 is set to be 1 to 1.3.

In the present embodiment, the optical member 23 includes a first light distribution unit 231 and a second light distribution unit 232. The first light distribution unit 231 in the present embodiment is configured in a strip shape, and a receiving groove 2311 is disposed along the length direction of the first light distribution unit 231, and at least a portion of the light emitting unit 22 in the height direction is located in the receiving groove 2311. The second light distribution unit 232 is disposed on the surface of the first light distribution unit 231, and the second light distribution unit 232 and the accommodation groove 2311 are respectively located at opposite sides of the first light distribution unit 231 in the height direction of the optical member 23. The light emitters 222 of the light emitting unit 22 are arranged corresponding to the second light distribution unit 232. Specifically, the light emitters 222 (the first light emitter 2221 and the second light emitter 2222) are arranged in one-to-one correspondence with the second light distribution unit 3002.

Further, the light emitting body 222 of the light emitting unit 22 is completely accommodated in the accommodating groove 2311. The distance from the surface of the light emitter 22 to the bottom surface of the accommodation groove 2311 (the surface of the accommodation groove 2311 corresponding to the light emitter 222) in this embodiment is a (a is equal to or greater than 0), the distance from the surface of the light emitter 222 to the second light distribution unit 3002 is B, and the relationship between a and B satisfies the following condition: a: the value of B is greater than 0.05 and less than 0.25. Further, the relationship between A and B satisfies the following condition: a: the value of B is greater than 0.1 and less than 0.2. When a and B satisfy the above relationship, the light emitted by the controllable light emitting 222 may largely or entirely correspond to the second light distribution unit 232. That is, regardless of the reflection of the light generated by the light emitter 222 at the interface, the light generated by the light emitter 222 is completely projected to the second light distribution unit 232 and is optically processed by the second light distribution unit 232.

The supporting seat 211 in this embodiment has a clamping groove 2111, and the optical member 23 and the substrate 221 of the light emitting unit 22 are simultaneously clamped into the clamping groove 2111 to complete fixation.

At least 70% of the luminous flux generated by the light emitter 222 in the present embodiment is directly emitted from the LED lamp via the second light distribution unit 232. The remaining light flux is emitted from the first light distribution unit 231. Further, at least 80% of the luminous flux generated by the light emitter 222 is directly emitted from the LED lamp via the second light distribution unit 232. Further, at least 90% of the luminous flux generated by the light emitter 222 is directly emitted from the LED lamp via the second light distribution unit 232.

The bottom surface of the accommodating groove 2311 in the present embodiment forms a light-entering portion 23111, and at least a portion of the light generated by the light emitter 222 (for example, at least 80% of the light flux generated by the light emitter 222 or at least 90% of the light flux generated by the light emitter 222) passes through the light-entering portion 23111 and enters the optical member 23 and enters the second light distribution unit 232. In an embodiment, the light flux generated by the light emitting body 222 directly enters the light incident portion 23111 without considering the reflection at the light incident portion 23111, that is, the light emitting range of the light emitting body 222 completely corresponds to the light incident portion 23111, so as to improve the light emitting effect (light emitting efficiency and light emitting type). The second light distribution portion 232 in the present embodiment includes a first light outlet portion 2321 and a second light outlet portion 2322. The illuminance ratio of the surfaces of the first light emitting portion 231 and the second light emitting portion 232 is greater than 0.3, 0.4, 0.5, 0.6, 0.7, 0.8 or 0.9 and less than 2, 1.9, 1.8, 1.7, 1.6 or 1.5, so that the light emitted in the light emitting range of the LED lamp is more uniform. In this embodiment, the first light-emitting portion 2321 includes a plane or a substantially plane, the second light-emitting portion 2322 includes a conical surface or a substantially conical surface, and the second light-emitting portion 2322 is disposed around the first light-emitting portion 2321.

The second light-emitting portion 2322 in this embodiment has a contour line, and the contour line rotates 360 degrees along the central axis of the second light-distributing portion 232 to form the outer contour of the second light-emitting portion 2322. The absolute value of the slope of the contour line of the outer contour of the tapered surface of the second light-emitting portion 2322 in this embodiment is between 0.3 and 0.6. Further, the absolute value of the slope of the outer contour of the tapered surface of the second light-emitting portion 2322 is between 0.4 and 0.5. The second light-emitting portion 2322 plays a role in adjusting the light pattern, and when the absolute value of the slope of the contour line of the outer contour of the tapered surface of the second light-emitting portion 2322 is in the above section, a preferable light-emitting effect (light-emitting angle and light-emitting pattern) can be obtained. In this embodiment, when calculating the slope of the contour line of the outer contour of the tapered surface of the second light-emitting portion 2322, the placement of fig. 12L is used, that is, the optical member 23 is located above the light-emitting unit 22.

In the LED lamp of the present embodiment, at least 80%, 85% or 90% of the luminous flux generated when the light emitting body 222 operates on the light emitting path is directly emitted from the LED lamp through the second light distribution unit 232 (the part of light is not reflected by the supporting unit 1 after passing through the second light distribution unit 232, so as to reduce possible light loss during reflection), thereby improving the light emitting efficiency. In this embodiment, a part (less than 20%, 15%, or 10% of the total luminous flux) of the light generated by the light emitter 222 is transmitted through the first light distribution unit 231 to the supporting unit 1, and is directly emitted from the LED lamp by reflection of the supporting unit 1, without emitting light through a light-transmitting plate or a diffusion plate in the prior art. In general, among the light emitted from the LED lamp in the present embodiment, the light reflected by the supporting unit 1 is smaller than the light emitted by the second light distribution unit 232, and by reducing the light emission by reflection, the light loss can be reduced and the light emission efficiency can be improved. In this embodiment, the light output reflected by the support unit 1 can be controlled to be less than 10% of the total output light flux, and more than 90% of the output light is directly output without reflection, so as to reduce the light loss caused by reflection.

In other embodiments, the second light distribution unit 232 may adopt a spherical structure or a polygonal prism structure.

As shown in fig. 12M, in the present embodiment, to control the uniformity of the light emitted from the LED lamp, the ratio of the illuminance in the range of a first area a to the average illuminance in the range of a second area B is greater than 0.3, 0.4, 0.5, 0.6, 0.7, 0.8 or 0.9, but less than 2. Preferably, the ratio of the illuminance in a first area a to the average illuminance in a second area B is greater than 0.5 and less than 1.5. Wherein the first area A and the second area B are positioned on the same plane. The first area a and the second area B are both located in a third area C (the third area C is located in the same plane with the first area a and the second area B), and the beam angle C corresponding to the third area C is 90 degrees, 80 degrees, 60 degrees or 50 degrees. The beam angle c in this embodiment may be smaller than the light emitting angle of the LED lamp. In this embodiment, the light uniformity is considered by the illuminance difference within the range of 50 degrees of the beam angle, so that the beam angle corresponding to the third area C is 50 degrees. The first region a and the second region B may be any regions within the third region C. It should be noted that the beam angle a referred to herein is not an angle formed by the boundary line of the light range. The center or circle center of the third area C in this embodiment corresponds to the LED lamp, that is, when the LED lamp is projected to the third area C along the optical axis D, the position of the LED lamp falls or approximately falls on the center or circle center of the third area C. In this embodiment, the plane in which the first area a and the second area B are located is perpendicular or substantially perpendicular to the optical axis D.

As shown in fig. 12N, in the present embodiment, to control the uniformity of the light emitted from the LED lamp, the ratio of the illuminance in the range of a first area a to the average illuminance in the range of a second area B is greater than 0.3, 0.4, 0.5, 0.6, 0.7, 0.8 or 0.9, but less than 2. Preferably, the ratio of the illuminance in a first area a to the average illuminance in a second area B is greater than 0.5 and less than 1.5. Wherein the first area a and the second area B are located on the same plane and are concentrically or substantially concentrically arranged (assuming that each area is circular or substantially circular, the center or circle center thereof is located at the same position). The first area a and the second area B are both located in a third area C (the third area C is located in the same plane with the first area a and the second area B), and the beam angle C corresponding to the third area C is 90 degrees, 80 degrees, 60 degrees or 50 degrees. The beam angle in this embodiment may be smaller than the light emission angle of the LED lamp. In this embodiment, the light uniformity is considered by the illuminance difference within the range of 50 degrees, so that the light beam angle C corresponding to the third area C is 50 degrees. The first area a and the second area B are disposed concentrically or substantially concentrically with the third area C, and the beam angle a corresponding to the first area a and the beam angle B corresponding to the second area B are smaller than the beam angle C corresponding to the third area C. It should be noted that the beam angle referred to herein is not an angle formed by the boundary lines of the relevant ranges. The center or circle center of the third area C in this embodiment corresponds to the LED lamp, that is, when the LED lamp is projected to the third area C along the optical axis D, the position of the LED lamp falls or approximately falls on the center or circle center of the third area C. In this embodiment, the plane in which the first area a and the second area B are located is perpendicular or substantially perpendicular to the optical axis D.

In this embodiment, the thickness of the LED lamp is not more than 30mm, that is, the thickness of the whole lamp is less than 30mm, and the LED lamp can achieve the uniformity of light output through the design of the optical member 23. Further, the thickness of the LED lamp can be controlled to be not more than 26mm, and the optical effects, such as light emitting uniformity, are met.

It is to be understood that the above description is intended to be illustrative, and not restrictive. Many embodiments and many applications other than the examples provided will be apparent to those of skill in the art upon reading the above description. The scope of the present teachings should, therefore, be determined not with reference to the above description, but instead should be determined with reference to the appended claims, along with the full scope of equivalents to which such claims are entitled. The disclosures of all articles and references, including patent applications and publications, are incorporated herein by reference for the purpose of completeness. The omission of any aspect of the subject matter disclosed herein in the preceding claims is not intended to forego such subject matter, nor should the inventors regard such subject matter as not be considered to be part of the disclosed subject matter.

Claims

1. An LED lighting device, comprising:

a light source carrier;

a light emitting unit fixed to the light source carrier; and

an optical member disposed corresponding to the light emitting unit and at least partially covering the light emitting unit;

the light source carrier comprises a base, a containing space is formed on the base, the light emitting unit and the optical component are arranged in the containing space, and in the height direction of the base, the light emitting unit and the optical component do not exceed the range limited by the containing space;

the optical component comprises a first light distribution unit, the first light distribution unit is configured to be provided with a plurality of light distribution parts, and the first light distribution unit is configured to be provided with a light processing function;

the optical component comprises a second light distribution unit, and the second light distribution unit is arranged on the surface of the first light distribution unit;

the second light distribution unit comprises a first light emergent part and a second light emergent part, and when the first light emergent part and the second light emergent part are lightened, the illuminance ratio of the surfaces of the first light emergent part and the second light emergent part is more than 0.3 and less than 2.

2. The LED lighting device of claim 1, wherein a ratio of a surface area of the second light extraction portion to a surface area of the first light extraction portion is greater than 20.

3. The LED lighting device of claim 2, wherein a ratio of a surface area of the second light extraction portion to a surface area of the first light extraction portion is greater than 30.

4. The LED lighting device of claim 1, wherein the height of the second light exit portion is less than 2mm and greater than 0.5mm.

5. The LED lighting device of claim 4, wherein the height of the second light exit portion is less than 1.5mm and greater than 0.8mm.

6. The LED lighting device of claim 1, wherein a ratio of a surface area of the second light extraction portion to a surface area of the first light extraction portion is set to be greater than 0.7 and less than 1.8.

7. The LED lighting device of claim 6, wherein a ratio of a surface area of the second light extraction portion to a surface area of the first light extraction portion is set to be greater than 0.8 and less than 1.5.

8. The LED lighting device of claim 1, wherein the height of the second light exit portion is less than 0.8mm and greater than 0.2mm.

9. The LED lighting device of claim 8, wherein the height of the second light exit portion is less than 0.7mm and greater than 0.3mm.

10. The LED lighting device of claim 1, wherein the first light extraction portion comprises a planar surface and the second light extraction portion comprises a tapered surface, the second light extraction portion being disposed about the first light extraction portion.

11. The LED lighting device of claim 10, wherein the second light exit portion has a contour line that is rotated 360 degrees along a center axis of the second light distribution unit to form an outer contour of the second light exit portion.

12. The LED lighting device of claim 11, wherein an absolute value of a slope of the contour line of the outer contour of the tapered surface of the second light-emitting portion is between 0.3 and 0.8.

13. The LED lighting device of claim 12, wherein an absolute value of a slope of the contour line of the outer contour of the tapered surface of the second light-emitting portion is between 0.35 and 0.5.

14. The LED lighting device of claim 11, wherein an absolute value of a slope of the contour line of the outer contour of the tapered surface of the second light-emitting portion is between 0.25 and 0.6.

15. The LED lighting device of claim 14, wherein an absolute value of a slope of the contour line of the outer contour of the tapered surface of the second light-emitting portion is between 0.3 and 0.6.

16. The LED lighting device of claim 15, wherein an absolute value of a slope of the contour line of the outer contour of the tapered surface of the second light-emitting portion is between 0.4 and 0.5.

17. The LED lighting device of claim 1, wherein at least 70% of the luminous flux generated by the light emitting unit is directly emitted from the LED lighting device via the second light distribution unit.

18. The LED lighting device of claim 17, wherein at least 80% of the luminous flux generated by the light emitting unit is directly emitted from the LED lighting device via the second light distribution unit.

19. The LED lighting device of claim 18, wherein at least 90% of the luminous flux generated by the light emitting unit is directly emitted from the LED lighting device via the second light distribution unit.

20. The LED lighting device of claim 1, wherein a portion of the light generated by the light emitting unit is transmitted through the first light distribution unit to the light source carrier and is emitted directly from the LED lighting device by reflection from the light source carrier.

21. The LED lighting device of claim 20, wherein less than 10% of the total luminous flux generated by the light emitting unit is transmitted through the first light distribution unit to the light source carrier and is directly emitted from the LED lighting device by reflection from the light source carrier.

22. The LED lighting apparatus of claim 1 wherein the second light distribution unit adopts a spherical structure.

23. The LED lighting apparatus of claim 1 wherein the second light distribution unit adopts a polygonal prism structure.

24. The LED lighting device of claim 1, wherein the overall height of the LED lighting device is below 30 mm.

25. The LED lighting device of claim 24, wherein the overall height of the LED lighting device is below 25 mm.

26. The LED lighting device of claim 1, wherein the optical member is a unitary structure that covers the light emitting unit.

27. The LED lighting apparatus according to claim 1, wherein the optical member is a multi-stage type, and a plurality of the multi-stage type optical members are provided corresponding to the light emitting unit.

28. The LED lighting apparatus of claim 1 including a power pack secured to the light source carrier and electrically connected to the light emitting unit.

29. The LED lighting device of claim 28, wherein the height of the power box in the height direction of the LED lighting device is less than the height of the LED lighting device.

30. The LED lighting device of claim 1, wherein the lighting unit light comprises a first light emitter and a second light emitter, the first light emitter and the second light emitter having different color temperatures, luminous fluxes, or color rendering indices when illuminated.

31. An LED lighting device, comprising:

a light source carrier;

a light emitting unit fixed to the light source carrier; and

the second light distribution unit comprises a first light emergent part and a second light emergent part, the first light emergent part comprises a plane, the second light emergent part comprises a conical surface, and the second light emergent part is arranged around the first light emergent part.

32. The LED lighting device of claim 31, wherein the second light exit portion has a contour line that is rotated 360 degrees along a center axis of the second light distribution unit to form an outer contour of the second light exit portion.

33. The LED lighting device of claim 32, wherein an absolute value of a slope of the contour line of the outer contour of the tapered surface of the second light-emitting portion is between 0.3 and 0.8.

34. The LED lighting device of claim 33, wherein an absolute value of a slope of the contour line of the outer contour of the tapered surface of the second light-emitting portion is between 0.35 and 0.5.

35. The LED lighting device of claim 32, wherein an absolute value of a slope of the contour line of the outer contour of the tapered surface of the second light-emitting portion is between 0.25 and 0.6.

36. The LED lighting device of claim 35, wherein an absolute value of a slope of the contour line of the outer contour of the tapered surface of the second light-emitting portion is between 0.3 and 0.6.

37. The LED lighting device of claim 36, wherein an absolute value of a slope of the contour line of the outer contour of the tapered surface of the second light-emitting portion is between 0.4 and 0.5.

38. The LED lighting device of claim 31, wherein at least 70% of the luminous flux generated by the light emitting unit is emitted directly from the LED lighting device via the second light distribution unit.

39. The LED lighting device of claim 38, wherein at least 80% of the luminous flux generated by the light emitting unit is emitted directly from the LED lighting device via the second light distribution unit.

40. The LED lighting device of claim 39, wherein at least 90% of the luminous flux generated by the light emitting unit is emitted directly from the LED lighting device via the second light distribution unit.

41. The LED lighting device of claim 31, wherein a ratio of a surface area of the second light extraction portion to a surface area of the first light extraction portion is greater than 20.

42. The LED lighting device of claim 41, wherein the ratio of the surface area of the second light extraction portion to the surface area of the first light extraction portion is greater than 30.

43. The LED lighting device of claim 31, wherein the second light extraction portion has a height of less than 2mm and greater than 0.5mm.

44. The LED lighting device of claim 43, wherein the height of the second light extraction portion is less than 1.5mm and greater than 0.8mm.

45. The LED lighting device of claim 31, wherein a ratio of a surface area of the second light extraction portion to a surface area of the first light extraction portion is set to be greater than 0.7 and less than 1.8.

46. The LED lighting device of claim 45, wherein the ratio of the surface area of the second light extraction portion to the surface area of the first light extraction portion is set to be greater than 0.8 and less than 1.5.

47. The LED lighting device of claim 31, wherein the second light extraction portion has a height of less than 0.8mm and greater than 0.2mm.

48. The LED lighting device of claim 47, wherein the second light extraction portion has a height of less than 0.7mm and greater than 0.3mm.

49. The LED lighting device of claim 31, wherein a portion of the light generated by the light emitting unit is transmitted through the first light distribution unit to impinge on the light source carrier and is emitted directly from the LED lighting device by reflection from the light source carrier.

50. The LED lighting device of claim 49, wherein less than 10% of the total luminous flux generated by the light emitting unit is transmitted through the first light distribution unit to the light source carrier and is directly emitted from the LED lighting device by reflection from the light source carrier.

51. The LED lighting device of claim 31, wherein the second light distribution unit has a spherical configuration.

52. The LED lighting apparatus of claim 31 wherein the second light distribution unit is a polygonal prism structure.

53. The LED lighting device of claim 31, wherein the overall height of the LED lighting device is below 30 mm.

54. An LED lighting device as recited in claim 53, wherein the overall height of the LED lighting device is less than 25 mm.

55. The LED lighting apparatus of claim 31 wherein the optical member is a unitary structure that covers the light emitting unit.

56. The LED lighting apparatus of claim 31 wherein the optical member is multi-segmented and a plurality of groups of the multi-segmented optical members are disposed in correspondence with the light emitting units.

57. The LED lighting apparatus of claim 31 including a power box secured to the light source carrier in electrical communication with the light emitting unit.

58. The LED lighting device of claim 57, wherein the height of the power box in the height direction of the LED lighting device is less than the height of the LED lighting device.

59. The LED lighting device of claim 31, wherein the lighting unit light comprises a first light emitter and a second light emitter, the first light emitter and the second light emitter having different color temperatures, luminous fluxes, or color rendering indices when illuminated.