CN216952796U

CN216952796U - Lighting device

Info

Publication number: CN216952796U
Application number: CN202122845946.6U
Authority: CN
Inventors: 宋江许; 张清泉; 谢建民
Original assignee: Suzhou Op Lighting Co Ltd
Current assignee: Suzhou Op Lighting Co Ltd
Priority date: 2021-11-19
Filing date: 2021-11-19
Publication date: 2022-07-12
Anticipated expiration: 2031-11-19

Abstract

The utility model discloses a lighting device, comprising: the shell is provided with a top wall and a peripheral side wall, and the bottom of the shell is of an open structure; the light-transmitting cover is arranged at the bottom of the shell and closes the open structure, and the light-transmitting cover and the shell jointly enclose an optical cavity; the light source module is arranged in the optical cavity; and the heat dissipation assembly comprises a plurality of heat dissipation air channels which are formed on the shell and form convection with the external environment. The present case is through setting up radiator unit, and radiator unit forms the heat dissipation channel who forms the convection current with external environment on the casing to cooling air current in the external environment can carry out abundant heat transfer with the casing when flowing through the heat dissipation wind channel, thereby takes away the heat on the casing, plays good radiating effect.

Description

Lighting device

Technical Field

The utility model relates to the technical field of illumination, in particular to an illumination device.

Background

When being installed, the conventional lighting device, such as a panel lamp, a flat lamp, etc., is generally hung on an indoor ceiling or a ceiling by using a hanging structure (such as a chain or a hanger rod), and of course, the conventional lighting device can also be used as a ceiling lamp by using a ceiling structure embedded in the ceiling. This kind of lighting device adopts the lamp panel structure usually, its structure composition usually has discoid casing, printing opacity cover, light source module and reflector, the printing opacity cover is connected in the casing bottom and encloses into the optics chamber jointly with the casing, the light source module is arranged in the optics intracavity, the light source module includes the LED lamp plate usually, the integration sets up a plurality of LED light emitting component on the LED lamp plate, the reflector is arranged in the optics chamber and is used for giving whole LED lamp plate grading, the light that makes a plurality of LED light emitting component on the LED lamp plate send can spotlight. Obviously, this type of lamp generally has the following drawbacks: 1. because the light that every LED light emitting component sent all is divergent to a plurality of LED light emitting component share a reflector, therefore the spotlight effect is general, and because the printing opacity cover generally adopts low-transparency or the general plastic materials of luminousness make, therefore the illumination effect of whole lighting device is not ideal enough. 2. After the light-transmitting cover and the shell are assembled, a gap is usually reserved between the light-transmitting cover and the shell, so that the light leakage defect is caused on one hand, on the other hand, mosquitoes, water mist and the like in the air easily penetrate through the gap to enter the lighting device, the inner surface of the light-transmitting cover is contaminated, and even a light source module is damaged. 3. The housing is usually a metal thin shell, and the heat dissipation effect is generally not suitable for a high-power light source module.

SUMMERY OF THE UTILITY MODEL

In order to solve the above technical problems, an object of the present invention is to provide a lighting device with better heat dissipation effect.

To this end, the utility model provides a lighting device comprising:

the shell is provided with a top wall and a peripheral side wall, and the bottom of the shell is of an open structure;

the light-transmitting cover is arranged at the bottom of the shell and closes the open structure, and the light-transmitting cover and the shell jointly enclose an optical cavity;

the light source module is arranged in the optical cavity;

and the heat dissipation assembly comprises a plurality of heat dissipation air channels which are formed on the shell and form convection with the external environment.

Preferably, the heat sink assembly includes a plurality of heat dissipating fins disposed on the top wall of the housing and arranged along the circumferential direction, each heat dissipating fin extends in the radial direction, and a space between two adjacent heat dissipating fins forms a heat dissipating air duct.

Preferably, the heat sink assembly further includes at least one heat sink fan disposed on the top wall of the housing, the heat sink fan being located at an intersection of the plurality of heat sink air channels, the heat sink fan being configured to: and air flow circulating between the external environment and each heat dissipation air duct is provided.

Preferably, the light source module comprises a light source board and a plurality of light emitting elements integrally arranged on the light source board.

Preferably, the light distribution unit is arranged in the optical cavity and used for processing light rays emitted by the plurality of light emitting elements.

Preferably, the light distribution unit includes a light distribution lens that matches and matches the number of light emitting elements, and the light distribution lens is configured to: the light emitted by each light emitting element is processed by the corresponding light distribution lens.

Preferably, the light distribution lens includes an incident portion, an emission portion, and a reflection portion connected between the incident portion and the emission portion, and is configured such that: the light emitted by each light emitting element enters the corresponding light distribution lens through the incident part, is reflected by the reflecting part and then is emitted from the emitting part.

Preferably, the incident portion has a fitting hole formed therein in a shape corresponding to the shape of the light emitting element, the reflecting portion has a horn shape, and the emitting portion has a honeycomb shape.

Preferably, the light distribution unit comprises a light distribution support, the light distribution support is provided with positioning holes, the number of the positioning holes is consistent with that of the light distribution lenses, and each light distribution lens is located in the corresponding positioning hole and is clamped between the light distribution support and the light source plate in the height direction of the light distribution lens.

Preferably, the light distribution bracket is in screw connection or buckle connection with the shell.

Preferably, the light-transmitting cover is made of high-transmittance materials.

Preferably, the high-transmittance material is made of glass, acrylic or polycarbonate, and the light transmittance is more than 85%.

Preferably, a sealing ring is arranged between the light-transmitting cover and the shell, a circle of embedding parts are arranged at the lower end of the peripheral side wall of the shell, and the sealing ring is provided with a groove which extends along the circumferential direction and is embedded with the embedding parts.

Preferably, the sealing ring is of a hollow structure.

Preferably, the light-transmitting cover is connected with the shell through a face frame, and the face frame and the shell are in screw connection, buckle connection, riveting or welding.

Preferably, an annular pressing sheet is arranged between the face frame and the light-transmitting cover.

Preferably, the annular preform is a glass sheet.

Compared with the prior art, the utility model has the following beneficial effects:

the present case is through setting up radiator unit, and radiator unit forms the heat dissipation channel who forms the convection current with external environment on the casing to cooling air current in the external environment can carry out abundant heat transfer with the casing when flowing through the heat dissipation wind channel, thereby takes away the heat on the casing, plays good radiating effect.

Drawings

FIG. 1 is an exploded schematic view of a preferred embodiment consistent with the present invention;

FIG. 2 is an enlarged partial schematic view at A shown in FIG. 1;

FIG. 3 is a schematic front view of a preferred embodiment consistent with the present invention;

FIG. 4 is a schematic cross-sectional view of the lighting device shown in FIG. 3;

FIG. 5 is a schematic top view of the lighting device shown in FIG. 3;

FIG. 6 is an enlarged partial schematic view at B shown in FIG. 4;

wherein the reference numbers are as follows:

100. an illumination device;

1. a housing; 10. a heat dissipating component; 11. a top wall; 12. a peripheral side wall; 13. a fitting portion; 14. a heat dissipating fin; 15. a heat radiation fan; 16. a heat dissipation air duct;

2. a light-transmitting cover;

3. a light source module; 31. a light source plate; 32. a light emitting element;

4. a light distribution unit; 41. a light distribution lens; 411. an incident part; 412. an emission part; 413. a reflection section; 414. a fitting hole; 42. a light distribution bracket; 421. positioning holes;

5. a seal ring; 51. a groove; 52. a barb portion;

6. a face frame;

7. annular tabletting;

8. the power supply is driven.

Detailed Description

It is easily understood that, according to the technical solution of the present invention, a plurality of alternative structures and implementations can be proposed by those skilled in the art without changing the spirit of the present invention. Therefore, the following detailed description and the accompanying drawings are merely illustrative of the technical aspects of the present invention, and should not be construed as all of the present invention or as limitations or limitations on the technical aspects of the present invention.

The terms of orientation such as up, down, front, and rear referred to in the present specification are defined relative to the configuration shown in the drawings, and they are relative terms, and thus may be changed according to the position and the use state. Therefore, these and other directional terms should not be construed as limiting terms.

As shown in fig. 1, 3, and 5, an illumination device 100 includes a housing 1, a translucent cover 2, a light source module 3, and a light distribution unit 4.

The housing 1 is integrally formed of an aluminum alloy material. It has a top wall 11 and a peripheral side wall 12, and the bottom of the housing 1 is of an open structure. The light-transmitting cover 2 is disposed at the bottom of the case 1 and closes the open structure. The light-transmitting cover 2 and the shell 1 jointly enclose an optical cavity. The light source module 3 is disposed in the optical cavity. Referring to fig. 6, the light source module 3 includes a light source board 31 and a plurality of light emitting devices 32 integrally disposed on the light source board 31. The light emitting elements 32 may be LED beads, and the light distribution unit 4 is disposed in the optical cavity and used for focusing light emitted by the light emitting elements 32. The light emitting element 32 may be an LED lamp bead. The housing 1 is provided with a driving power supply 8, the driving power supply 8 can be disposed inside or outside the housing 1, and the driving power supply 8 is electrically connected to the light source board 31 through a cable (not shown) passing through the housing 1.

Specifically, as shown in fig. 2, 4, and 6, the light distribution unit 4 includes a plurality of light distribution lenses 41 and light distribution brackets 42. The light distribution bracket 42 is connected with the shell 1 through screws. Of course, in other embodiments, other detachable connections between the light distribution bracket 42 and the housing 1 may be used, such as a snap connection. The light distribution bracket 42 is provided with positioning holes 421 the number of which is the same as that of the light distribution lenses 41, and each light distribution lens 41 is positioned in the corresponding positioning hole 421 and is sandwiched between the light distribution bracket 42 and the light source plate 31 in the height direction thereof.

The light distribution lens 41 is configured to: the light emitted from each light emitting element 32 is focused by the corresponding light distribution lens 41. Specifically, as shown in fig. 2, the light distribution lens 41 includes an incident portion 411, an emission portion 412, and a reflection portion 413 connected between the incident portion 411 and the emission portion 412, and the light distribution lens 41 is configured such that: the light emitted from each light emitting element 32 enters the corresponding light distribution lens 41 through the incident portion 411, is reflected by the reflection portion 413, and is emitted from the emission portion 412. The incident portion 411 has a fitting hole 414 formed therein in accordance with the shape of the light emitting element 32, the reflecting portion 413 has a trumpet shape, and the emitting portion 412 has a honeycomb shape. Thus, when the light emitted from the light emitting element 32 reaches the emitting portion 412, the light can be refracted for multiple times, so that the light condensing capacity of the light is increased, and the illumination effect of the illumination device is better.

In order to further improve the light emitting effect of the lighting device, in this embodiment, the light-transmitting cover 2 is made of a high-transmittance material, such as high-transmittance glass, acrylic, or polycarbonate, and the light transmittance is over 85%. The light-transmitting cover 2 is connected with the shell 1 through a face frame 6, and the face frame 6 is in screw connection with the shell 1. Of course, in other embodiments, the connection between the face frame 6 and the housing 1 may be other detachable connections or non-detachable connections, such as a snap connection, an adhesive connection, a rivet connection or a weld connection. An annular pressing sheet 7 is arranged between the face frame 6 and the light-transmitting cover 2, so that the light-transmitting cover 2 can be prevented from being directly and rigidly contacted with the face frame 6, and the light-transmitting cover 2 is prevented from being damaged. The annular pressing sheet 7 may be a spacer of glass sheet, plastic sheet or the like.

In order to improve the sealing performance of the lighting device and to prevent water and mosquitoes, as shown in fig. 1 and 6, a sealing ring 5 is provided between the light-transmitting cover 2 and the housing 1, a circle of embedding part 13 is provided at the lower end of the peripheral side wall 12 of the housing 1, and the sealing ring 5 has a groove 51 which extends along the circumferential direction and is embedded with the embedding part 13. In order to make the sealing ring 5 more firmly fitted, the groove 51 of the sealing ring 5 is provided with barbs 52 on opposite inner side walls. In order to increase the contact area between the gasket 5 and the translucent cover 2 and improve the sealing performance, the inside of the gasket 5 is designed to be hollow. So, sealing washer 5 is compressible when using and warp to fill the contact gap between printing opacity cover 2 and the casing 1, waterproof and mosquito-proof worm effect is better.

In order to achieve good heat dissipation of the lighting device 100, the lighting device is suitable for the high-power light source module 3. As shown in fig. 3 and 5, the heat sink assembly 10 includes a plurality of heat dissipating fins 14 disposed on the top wall 11 and the peripheral sidewall 12 of the housing 1 and arranged along the circumferential direction, and two heat dissipating fans 15 disposed on the top wall of the housing 1, wherein each heat dissipating fin 14 extends in the radial direction. A heat dissipation air duct 16 for communicating the heat dissipation fan 15 with the external environment to form convection is formed between two adjacent heat dissipation fins 14, the heat dissipation fan 15 is located at the intersection of the plurality of heat dissipation air ducts 16, and the heat dissipation fan 15 is configured as follows: providing air flow circulating between the ambient environment and each of the heat dissipation ducts 16. Of course, in other embodiments, the heat radiation fins 14 are provided on one of the top wall 11 and the peripheral side wall 12 of the housing 1, and there may be only one or more heat radiation fans. Thus, the heat of the housing 1 is conducted by the heat dissipating fins 14, and the air flow is blown out by the heat dissipating fan 14, so that the cold air flow in the external environment enters the heat dissipating air duct 16 formed between the heat dissipating fins 14, thereby taking away the heat on the heat dissipating fins 14, and the heat dissipating effect is better.

It should be noted that the lighting device 100 of the present disclosure can be installed on an indoor ceiling as a ceiling lamp by using a ceiling structure known in the art, and can also be installed on an indoor ceiling as a ceiling lamp by using a hanging structure, such as a chain or a suspension rod, and the hanging structure is not described herein again.

The technical scope of the present application is not limited to the content of the above description, and those skilled in the art can make various changes and modifications to the above embodiments without departing from the technical spirit of the present application, and these changes and modifications should fall within the protection scope of the present application.

Claims

1. An illumination device, comprising:

the device comprises a shell (1) and a base, wherein the shell (1) is provided with a top wall (11) and a peripheral side wall (12), and the bottom of the shell (1) is of an open structure;

the light-transmitting cover (2) is arranged at the bottom of the shell (1) and closes the open structure, and the light-transmitting cover (2) and the shell (1) jointly enclose an optical cavity;

a light source module (3) arranged in the optical cavity; the method is characterized by also comprising the following steps of;

the heat dissipation assembly (10) comprises a plurality of heat dissipation air ducts (16) which are formed on the shell (1) and form convection with the external environment.

2. A lighting device as recited in claim 1, wherein: the heat dissipation assembly (10) comprises a plurality of heat dissipation fins (14) which are arranged on the top wall (11) of the shell (1) and are distributed along the circumferential direction, each heat dissipation fin (14) extends along the radial direction, and a space between every two adjacent heat dissipation fins (14) forms the heat dissipation air channel (16).

3. A lighting device as recited in claim 1, wherein: the heat dissipation assembly (10) further comprises at least one heat dissipation fan (15) disposed on the top wall (11) of the housing (1), the heat dissipation fan (15) being located at an intersection of the plurality of heat dissipation air ducts (16), the heat dissipation fan (15) being configured to: providing an air flow circulating between the external environment and each of said heat dissipation air ducts (16).

4. A lighting device as recited in claim 1, wherein: the light source module (3) comprises a light source plate (31) and a plurality of light emitting elements (32) which are integrally arranged on the light source plate (31).

5. A lighting device as recited in claim 4, wherein: the light distribution unit is arranged in the optical cavity and used for processing light rays emitted by the light emitting elements (32).

6. A lighting device as recited in claim 5, wherein: the light distribution unit (4) comprises light distribution lenses (41) which are matched with the light-emitting elements (32) in number, and the light distribution lenses (41) are configured to: the light emitted by each light emitting element (32) is processed by the corresponding light distribution lens (41).

7. A lighting device as recited in claim 6, wherein: the light distribution lens (41) comprises an incident part (411), an emission part (412), and a reflection part (413) connected between the incident part (411) and the emission part (412), and the light distribution lens (41) is configured to: the light emitted by each light emitting element (32) enters the corresponding light distribution lens (41) through the incident portion (411), is reflected by the reflecting portion (413), and is emitted from the emitting portion (412).

8. A lighting device as recited in claim 7, wherein: the incident portion (411) is provided with an embedding hole (414) matched with the shape of the light-emitting element (32), the reflecting portion (413) is in a horn shape, and the emergent portion (412) is in a honeycomb shape.

9. A lighting device as recited in claim 6, wherein: the light distribution unit (4) comprises a light distribution support (42), positioning holes (421) with the same number as the light distribution lenses (41) are formed in the light distribution support (42), and each light distribution lens (41) is located in the corresponding positioning hole (421) and clamped between the light distribution support (42) and the light source plate (31) in the height direction of the light distribution lens.

10. A lighting device as recited in claim 9, wherein: the light distribution bracket (42) is in screw connection or buckle connection with the shell (1).

11. A lighting device as recited in claim 1, wherein: the light-transmitting cover (2) is made of high-transmittance materials.

12. A lighting device as recited in claim 11, wherein: the high-transmittance material is made of glass, acrylic or polycarbonate, and the light transmittance is more than 85%.

13. A lighting device as recited in claim 1, wherein: light-transmitting cover (2) with be provided with sealing washer (5) between casing (1), the week side wall (12) lower extreme of casing (1) is provided with round gomphosis portion (13), sealing washer (5) have along circumference extension and with recess (51) of gomphosis portion (13) looks gomphosis.

14. A lighting device as recited in claim 13, wherein: the sealing ring (5) is of an internal hollow structure.

15. A lighting device as recited in claim 1, wherein: the light-transmitting cover (2) is connected with the shell (1) through a face frame (6), and the face frame (6) is in screw connection, buckle connection, riveting or welding with the shell (1).

16. A lighting device as recited in claim 15, wherein: an annular pressing sheet (7) is arranged between the face frame (6) and the light-transmitting cover (2).

17. A lighting device as recited in claim 16, wherein: the annular pressing sheet (7) is a glass sheet.