CN212511046U - Lighting lamp - Google Patents

Abstract

The application relates to a lighting fixture, comprising: the shell is provided with a first through hole. The circuit board is positioned in the shell and provided with a second through hole. The lamp bead is electrically connected with the circuit board and is installed on one side of the circuit board, which is deviated from the first through hole. The sealed lid covers the one side of establishing the circuit board and being equipped with the lamp pearl, and covers and establish the lamp pearl. And the heat conducting element is of a hollow structure, one end of the heat conducting element is positioned in the first through hole, and the other end of the heat conducting element is positioned in the second through hole. And the waterproof membrane covers one end, located at the first through hole, of the heat conducting element. Through first through-hole, second through-hole and heat-conducting element, the air in the sealed lid can produce the heat exchange with the air of external world. The heat generated when the circuit board and the lamp beads work is taken away during heat exchange, and the heat conducting element is in direct contact with the circuit board, so that the temperature difference between the circuit board, the lamp beads and the surface of the lighting lamp is small, and the service life of the kernel electronic component is prolonged. The waterproof membrane can prevent external steam from entering the sealing cover, so that the circuit board and the lamp beads are prevented from being corroded, and the service lives of the circuit board and the lamp beads are prolonged.

Description

Lighting lamp

Technical Field

The application relates to the technical field of lamps, in particular to an illuminating lamp.

Background

The heat dissipation effect of the existing lighting lamp is poor, the circuit board or the lamp beads can generate heat during working, the temperature of the circuit board and the lamp beads is increased, the heat is slowly transferred in the shell of the lighting lamp, when the kernel of the lighting lamp is encapsulated by glue or a high-efficiency heat conduction path does not exist between the kernel and the shell, the heat generated by the circuit board or the lamp beads is hardly transferred to the outside of the shell, and the circuit board and the lamp beads can not be cooled quickly. Under the condition that the heat conduction performance of the inner core of the lighting lamp is poor, the temperature of the inner core of the lighting lamp needs to be far higher than that of the outer surface of the lighting lamp, namely, the temperature difference between the inner core and the outer surface of the lighting lamp needs to be higher, so that the heat balance can be achieved. The heat balance can be understood as that the temperature of the outer surface of the lighting fixture is constant under the condition that the power of the heat source of the inner core is constant. The core temperature of the lighting lamp is higher, the working temperature of the core electronic component is higher, the working temperature of the electronic component is in proportional relation with the service life, the higher core temperature easily causes the service life of the circuit board and the lamp beads to be shorter, and therefore the service life of the lighting lamp is shorter.

SUMMERY OF THE UTILITY MODEL

Accordingly, it is necessary to provide a lighting fixture to solve the problem of poor heat dissipation effect of the lighting fixture.

A lighting fixture electrically connectable to a cable, comprising:

the shell is provided with a first through hole;

the circuit board is positioned in the shell and provided with a second through hole;

the lamp bead is electrically connected with the circuit board and is arranged on one side of the circuit board, which is far away from the first through hole;

the sealing cover covers one side of the circuit board, which is provided with the lamp beads, and covers the lamp beads;

the heat conducting element is of a hollow structure, one end of the heat conducting element is positioned in the first through hole, and the other end of the heat conducting element is positioned in the second through hole; and

a waterproof film covering one end of the heat conductive member at the first through hole;

through the first through hole, the second through hole and the heat conduction element, the air in the sealing cover can exchange heat with the outside air.

In one embodiment, the circuit board comprises a first adhesive layer, the first adhesive layer is located on one side of the circuit board, where the sealing cover is located, and the sealing cover protrudes out of the first adhesive layer.

In one embodiment, the housing comprises a peripheral shell and a bottom shell; the lighting lamp comprises a second adhesive layer, the second adhesive layer is located between the bottom shell and the circuit board, and the second adhesive layer surrounds the heat conducting element.

In one embodiment, the cover body is arranged on one side of the sealing cover, which faces away from the circuit board, and covers the shell.

In one embodiment, the heat conducting element has a stepped cylindrical structure, and the heat conducting element comprises a first end and a second end, and the diameter of the second end is smaller than that of the first end; the first end is fixed to the first through hole, and the second end is fixed to the second through hole.

In one embodiment, the housing is formed of an aluminum shell and a plastic shell that encases a portion of the aluminum shell.

In one embodiment, the shell comprises a bottom shell and a peripheral shell, and the first through hole is formed in the bottom shell;

the aluminum shell comprises a first bottom wall and a first peripheral wall, the plastic shell comprises a second bottom wall and a second peripheral wall, the first bottom wall and the second bottom wall form the bottom shell together, and partial structure of the first bottom wall is wrapped by the second bottom wall; the first peripheral wall and the second peripheral wall together form the peripheral shell, and the partial structure of the first peripheral wall is wrapped by the second peripheral wall.

In one embodiment, the portion of the first bottom wall that is not wrapped by the second bottom wall is grooved, and/or the portion of the first peripheral wall that is not wrapped by the second peripheral wall is grooved.

In one embodiment, the first through hole is a stepped circular hole having a first diameter at the first bottom wall, the second through hole has a second diameter at the second bottom wall, the first diameter being smaller than the second diameter, and an end of the heat conducting element abuts the first bottom wall.

In one embodiment, the housing has a through hole, the cable is electrically connected to the circuit board through the through hole, and the cable is hermetically connected to a hole wall of the through hole.

The lighting lamp comprises a shell, a circuit board, lamp beads, a sealing cover, a heat conducting element and a waterproof membrane, wherein the sealing cover is arranged on the circuit board in a covering mode and covers the lamp beads, a first through hole is formed in the shell, and a second through hole is formed in the circuit board. Hollow structure's heat conduction component one end is fixed in first through-hole, the other end is fixed in the second through-hole, make the air in the sealed lid can produce the heat exchange with the air convection of external world, thereby take away the heat that circuit board and lamp pearl during operation produced, heat conduction component and circuit board direct contact, its superior heat conductivility makes the temperature of circuit board and lamp pearl more be close to the surface temperature of illumination lamps and lanterns, the difference in temperature is littleer or be close the same, thereby can prolong the electronic components's of illumination lamps and lanterns kernel working life by a wide margin, and then the whole life-span of extension illumination lamps and lanterns. . Be equipped with the water proof membrane between first end and the first diapire, prevent that external steam from getting into inside the sealed lid, avoid circuit board and lamp pearl to be corroded, prolong the life of circuit board and lamp pearl.

Drawings

FIG. 1 is a partial exploded view of a lighting fixture according to one embodiment;

FIG. 2 is a further exploded view of the lighting fixture of FIG. 1;

FIG. 3 is a further exploded view of the lighting fixture of FIG. 2;

FIG. 4 is a perspective view of a connector link of the light fixture of FIG. 1;

FIG. 5 is a perspective view of the housing of the light fixture of FIG. 1 at an angle;

FIG. 6 is a perspective view of the housing of the light fixture of FIG. 1 at another angle;

FIG. 7 is an exploded view of the housing shown in FIG. 5;

fig. 8 is a sectional view of a portion of the structure of the light fixture of fig. 1.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present application more comprehensible, embodiments accompanying the present application are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. This application is capable of embodiments in many different forms than those described herein and that modifications may be made by one skilled in the art without departing from the spirit and scope of the application and it is therefore not intended to be limited to the specific embodiments disclosed below.

In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the present application.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present application, "plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

The radiating effect of the existing lighting lamp is poor, the circuit board or the lamp bead of the lighting lamp can generate heat during working, the temperature of the circuit board and the lamp bead is increased, the heat is slowly transferred through air or objects in the shell of the lighting lamp, the circuit board and the lamp bead cannot be cooled quickly, and the service life of the circuit board and the lamp bead is short.

Based on the relatively poor shortcoming of radiating effect of current illumination lamps and lanterns 10, the application provides an illumination lamps and lanterns 10, through set up heat-conducting element 600 and sealed lid 300 in illumination lamps and lanterns 10's casing 800, heat-conducting element 600 is hollow structure, the inner space of the sealed lid 300 of intercommunication, make the air in the sealed lid 300 can carry out the heat exchange with the air of external world, thereby can be fast outside heat transfer to illumination lamps and lanterns 10 with circuit board 400 and lamp pearl 500 production, make circuit board 400 and lamp pearl 500's temperature can reduce fast, prolong circuit board 400 and lamp pearl 500's life. Set up waterproof membrane 700 on the heat conduction element 600, can avoid external steam to enter sealed lid 300 through hollow structure's heat conduction element 600 and corrode circuit board 400 or lamp pearl 500 for circuit board 400 and lamp pearl 500's life is longer.

Referring to fig. 1 and 2, fig. 1 shows a partially exploded view of a lighting fixture 10 in an embodiment of the present application. Fig. 2 shows a further exploded schematic view of the lighting fixture 10 of fig. 1. The lighting lamp 10 includes a housing 800, a cover 100, a sealing cover 300, a circuit board 400, a lamp bead 500, and a first adhesive layer 200. The cover 100 covers the case 800 such that the cover 100 and the case 800 form an installation space. The housing 800 and the cover 100 together form an outer shell of the light fixture 10. The sealing cover 300, the circuit board 400, the lamp beads 500 and the first glue layer 200 are located in the installation space. It can be understood that the housing 800 is an open box-shaped structure, the cover 100 is a sheet-shaped structure, and the cover 100 covers the opening of the housing 800, that is, the sealing cover 300, the circuit board 400, the lamp bead 500 and the first adhesive layer 200 are located in the housing 800. The lighting lamp 10 can be connected with an external power supply through a cable 900, the cable 900 penetrates through a through hole 802 formed in the casing 800, and the cable 900 is in sealing fit with the hole wall of the through hole 802. Cable 900 can be for lamp pearl 500 power supply through circuit board 400 to lamp pearl 500 can be luminous. On the other hand, the cable 900 is in sealing fit with the hole wall of the through hole 802, and when glue is poured into the shell 800, the adhesive does not flow out from the cable 900, so that glue leakage of the shell 800 is prevented.

In one embodiment, the cover 100 is made of a transparent polymer material, and the light transmittance of the cover 100 is not less than 70%. So that the light emitted by the lamp beads 500 can pass through the cover body 100 and enter the external environment.

Fig. 3 shows an exploded view of the lighting fixture 10 in an embodiment of the present application. With reference to fig. 1 to 3, the housing 800 is an open disc-shaped structure and includes a peripheral shell 820 and a bottom shell 810, the peripheral shell 820 is formed by extending an edge of the bottom shell 810, and the peripheral shell 820 is perpendicular or substantially perpendicular to the bottom shell 810. The lighting fixture 10 includes a length direction, a width direction, and a thickness direction that are perpendicular to each other. The length direction is arranged along the Y direction, the width direction is arranged along the X direction, and the thickness direction is arranged along the Z direction. The cable 900 extends into the inside of the casing 800 along the Y direction and is electrically connected to the circuit board 400, so as to supply power to the lamp bead 500.

In the Z direction, bottom shell 810, circuit board 400, first adhesive layer 200, sealing cover 300 and cover 100 are arranged in sequence, and lamp beads 500 are installed on one side of circuit board 400 departing from bottom shell 810, and the number of lamp beads 500 may be one or more, and is not specifically limited herein. Sealed lid 300 is opening box-shaped structure, and sealed lid 300 covers the one side that is equipped with lamp pearl 500 of establishing circuit board 400, and with circuit board 400 sealing connection, all lamp pearls 500 all are located sealed lid 300. The projection area of the sealing cover 300 on the XY plane is smaller than the projection area of the circuit board 400, and the projection of the sealing cover 300 on the XY plane is located within the projection of the circuit board 400 on the XY plane. The first adhesive layer 200 is disposed on the side of the circuit board 400 where the sealing cover 300 is disposed, the sealing cover 300 penetrates through the first adhesive layer 200 and protrudes from the first adhesive layer 200, that is, the first adhesive layer 200 surrounds the periphery of the sealing cover 300, and the first adhesive layer 200 covers the portion of the circuit board 400 not covered by the sealing cover 300. The first adhesive layer 200 fixes the sealing cover 300 on the circuit board 400, and the first adhesive layer 200 enables the sealing cover 300 to be connected with the circuit board 400 in a sealing manner, so that external water vapor is prevented from entering the sealing cover 300, short circuit or corrosion of the circuit board 400, the lamp beads 500 or other electronic components is avoided, and the service life of the circuit board 400 is prolonged.

In one embodiment, the sealing cover 300 is made of transparent polymer material, and the light transmittance of the cover 100 is not less than 70%. So that the light emitted by the lamp beads 500 can pass through the cover body 100 and enter the external environment.

The cable 900 penetrates through the through hole 802 formed in the housing 800 and extends into the mounting space, and is located on one side of the adhesive layer facing the bottom case 810, that is, the portion of the cable 900 located in the mounting space and the circuit board 400 are located on the same side of the adhesive layer, and the cable 900 is electrically connected to the circuit board 400. The cable 900 is a strip-shaped structure and is disposed along the Y-direction.

Fig. 4 shows a perspective view of a connector clip 860 according to an embodiment of the present application. Referring to fig. 2 to 4, in an embodiment, the housing 800 includes a mounting portion 843 and a connector link 860, the mounting portion 843 is located on the peripheral shell 820, the connector link 860 and the mounting portion 843 cooperate to form a through hole 802, and the through hole 802 can be connected to the cable 900 in a sealing manner, so that in a subsequent procedure of forming a glue layer by potting, the adhesive can be prevented from flowing out of the housing 800 from the through hole 802.

In one embodiment, the connector 860 is formed separately, such as by injection molding with a molten polymer material, and the connector 860 is formed separately with high precision. Installation department 843 is located casing 800, can make through injection moulding, and it is convenient to prepare for the precision of moulding plastics is higher, thereby makes the higher connector link 860 of precision better with installation department 843's cooperation precision, thereby and casing 800, cable 900 between have better sealed effect.

In one embodiment, one of the mounting portion 843 and the connector clip 860 is provided with a snap (not shown), and the other is provided with a slot (not shown). The mounting portion 843 is engaged with the connector 860 by a snap fit and a catch to prevent disengagement. It can be understood that after the buckle and the slot are matched, the hole wall of the through hole 802 formed by the mounting portion 843 and the connecting buckle 860 can compress the cable 900, so that the hole wall of the through hole 802 and the cable 900 can be in sealing fit, and the case 800 is ensured not to leak glue at the through hole 802.

As shown in fig. 3 and 4, in an embodiment, the mounting portion 843 is provided with a first protrusion 844 on a side facing the connector link 860, and the connector link 860 is provided with a second protrusion 861 on a side facing the mounting portion 843. The first protrusion 844 is perpendicular to the Y direction, and the second protrusion 861 is perpendicular to the Y direction. In the assembled state of the mounting portion 843 and the connector 860, the ends of the first protrusion 844 and the second protrusion 861 are aligned, so that the inner surface of the hole wall has continuous protrusions. It is understood that the number of the first ribs 844 is 2 or more, and they are substantially parallel to each other; the number of the second protruding strips 861 is two or more, and the first protruding strips 844 and the second protruding strips 861 are substantially parallel to each other, and the number is equal. When the cable 900 penetrates the through hole 802, the first protruding strip 844 and the second protruding strip 861 surround the outer periphery of the cable 900 and are in interference fit with the outer surface of the cable 900, so that the first protruding strip 844 and the second protruding strip 861 press the cable 900 together. It can be understood that when the first rib 844 and the second rib 861 press the cable 900, the cable 900 may be deformed to some extent, and the space between the adjacent first ribs 844 or the space between the adjacent second ribs 861 provides an accommodating space for the deformation of the cable 900.

In an embodiment, the number of the mounting portion 843 and the number of the connecting buckle 860 are 2, which are respectively located at two ends of the casing 800, so that the two ends of the casing 800 can be provided with the cable 900 extending into the mounting space to supply power to the circuit board 400 and the lamp bead 500.

FIG. 5 illustrates a perspective view of a housing 800 at an angle in one embodiment of the present application; FIG. 6 illustrates a perspective view of a housing 800 at another angle in one embodiment of the present application; fig. 7 shows an exploded view of aluminum case 830 and plastic case 840 of case 800 in an embodiment of the present application.

As shown in fig. 5 to 7, in an embodiment, the housing 800 includes an aluminum housing 830 and a plastic housing 840. The aluminum shell 830 is in a shell-shaped structure with discontinuous peripheral walls, the plastic shell 840 is in a frame structure, and at least part of the structure of the aluminum shell 830 is wrapped by the plastic shell 840 to form the complete shell 800. The radiating effect of casing 800 can be strengthened to aluminum shell 830 for the heat that circuit board 400 and lamp pearl 500 during operation produced can dispel the heat through aluminum shell 830 fast, improves circuit board 400 and lamp pearl 500's life. The installation part 843 is located on the plastic shell 840, the plastic shell 840 is easy to process, the processing precision is high, the installation part 843 has high precision, and the connection buckle 860 and the cable 900 can be matched in a sealing mode. The plastic shell 840 wraps the partial structure of the aluminum shell 830, so that the aluminum shell 830 is not easily abraded, the plastic shell 840 has a good abrasion-resistant effect, and the shell 800 has a good abrasion-resistant effect.

As shown in fig. 5 to 7, in an embodiment, the aluminum shell 830 includes a first bottom wall 831 and a first peripheral wall 832, the first peripheral wall 832 is formed by extending an edge of the first bottom wall 831, and the first peripheral wall 832 is perpendicular or substantially perpendicular to the first bottom wall 831. The first perimeter wall 832 is a discontinuous structure. In another embodiment, the first perimeter wall 832 may also be a continuous structure. The plastic housing 840 includes a second bottom wall 841 and a second peripheral wall 842. The second peripheral wall 842 is formed by extending an edge of the second bottom wall 841, the second peripheral wall 842 is perpendicular or approximately perpendicular to the second bottom wall 841, and the mounting portion 843 is located on the second peripheral wall 842. The first and second bottom walls 831 and 841 together form the bottom case 810, and the first and second peripheral walls 832 and 842 together form the peripheral case 820. The plastic shell 840 is a frame structure, and the area of the second bottom wall 841 is smaller than that of the first bottom wall 831, so that the first bottom wall 831 is only wrapped by the second bottom wall 841 in a partial structure, and other structures are exposed, thereby facilitating heat dissipation of the lighting lamp 10. A portion of the first perimeter wall 832 is enclosed by the second perimeter wall 842, and the remaining structure is exposed, which also facilitates heat dissipation from the light fixture 10.

As shown in fig. 5 to 7, in an embodiment, the second bottom wall 841 covers one side of the outer surface of the partial structure of the first bottom wall 831, and the second peripheral wall 842 covers one side of the outer surface of the first peripheral wall 832; in another embodiment, the second bottom wall 841 covers one side of the inner surface of the partial structure of the first bottom wall 831, and the second peripheral wall 842 covers one side of the inner surface of the partial structure of the first peripheral wall 832. In another embodiment, the second bottom wall 841 and the second peripheral wall 842 are both of a spaced double-layer structure, the first bottom wall 831 is located between the double layers of the second bottom wall 841, the second bottom wall 841 covers both sides of the inner and outer surfaces of the partial structure of the first bottom wall 831, and the inner surface and the outer surface of the first bottom wall 831 covered by the second bottom wall 841 may or may not overlap, that is, the double layers of the second bottom wall 841 are offset on the inner and outer surfaces of the first bottom wall 831; the first perimeter wall 832 is located between the two layers of the second perimeter wall 842, the second perimeter wall 842 covers both sides of the inner and outer surfaces of the first perimeter wall 832, and the inner and outer surfaces of the second perimeter wall 842 covering the first perimeter wall 832 may or may not overlap, i.e., the second perimeter wall 842 is offset on the inner and outer surfaces of the first perimeter wall 832.

In an embodiment, the first bottom wall 831 is a circular sheet structure, and the outer surface of the edge of the first bottom wall 831 is covered by the second bottom wall 841 to prevent the edge of the first bottom wall 831 from being worn. The outer surfaces of both ends of the first circumferential wall 832 are wrapped by the second circumferential wall 842, preventing abrasion and enhancing the strength of the housing 800. In another embodiment, the inner and outer surfaces of the edge of the first bottom wall 831 are covered by the second bottom wall 841, enhancing the strength of the case 800; the inner and outer surfaces of both ends of the first peripheral wall 832 are covered with the second peripheral wall 842, enhancing the strength of the housing 800. It can be understood that plastic shell 840 is a frame structure, which can enhance the strength of housing 800, and plastic shell 840 does not completely cover aluminum shell 830, avoiding affecting the heat dissipation of aluminum shell 830, so that housing 800 also has a better heat dissipation effect under the higher strength condition.

Referring to fig. 5 to 7, in an embodiment, the exposed portion of the first bottom wall 831 is provided with a groove 833, and the groove 833 can be recessed towards the inside of the case 800 or the outside of the case 800, so as to increase the surface area of the watch aluminum case 830 and improve the heat dissipation effect of the aluminum case 830; the exposed portion of the first circumferential wall 832 is provided with a groove 833, and the groove 833 can be recessed towards the inside of the housing 800 or the outside of the housing 800, so as to increase the surface area of the aluminum case 830 and improve the heat dissipation effect of the aluminum case 830.

Referring to fig. 5 to 7, in an embodiment, the bottom shell 810 is provided with a first through hole 801, and the first through hole 801 is a circular stepped hole. The first through hole 801 has a first diameter at the first bottom wall 831 and a second diameter at the second bottom wall 841, the first diameter being smaller than the second diameter.

Fig. 8 shows a schematic view of the assembly of the heat conducting element 600 with the aluminum case 830 and the circuit board 400 in an embodiment of the present application. Referring to fig. 2 and 8, in an embodiment, the circuit board 400 is provided with a second through hole 410. The lighting fixture 10 includes a thermally conductive element 600. The heat conducting element 600 has a stepped cylindrical hollow structure including a first end 610 and a second end 620, and the diameter of the second end 620 is smaller than that of the first end 610. The first end 610 is fixed to the first through hole 801, an end surface of the first end 610 abuts against an inner surface of the first bottom wall 831, and an outer peripheral surface of the first end 610 is surrounded by a hole wall of the first through hole 801 at the plastic shell 840, so that the heat conducting element 600 is restricted from moving at the first through hole 801. The second end 620 penetrates through the second through hole 410 and is fixed to the second through hole 410, and the end of the second end 620 far away from the first end 610 is flush with the surface of the circuit board 400 or protrudes out of the circuit board 400 or is recessed into the circuit board 400. The heat conducting element 600 enables outside air to enter the sealing cover 300, so that the air in the sealing cover 300 can exchange heat with the outside air to take away heat generated by the circuit board 400 or the lamp bead 500 in the sealing cover 300 during operation.

It is understood that the circuit board 400 is disposed with wires, and in order to avoid the second end 620 occupying too much space of the circuit board 400, the diameter of the second end 620 is set to be smaller than that of the first end 610, i.e., the heat conducting element 600 is a stepped cylindrical structure, so that the second end 620 can be allowed to pass through when the diameter of the second through hole 410 is smaller, thereby saving space of the circuit board 400. Secondly, the heat conducting element 600 is a step-shaped cylindrical structure, which increases the surface area of the heat conducting element 600 and improves the heat dissipation effect of the heat conducting element 600. In another embodiment, the heat conducting element 600 may also be provided in a cylindrical structure, with the diameter of the first end 610 being equal to the diameter of the second end 620.

In an embodiment, a second adhesive layer (not shown) is disposed between the bottom case 810 and the circuit board 400, and the second adhesive layer surrounds the heat conducting element 600, i.e., the outer peripheral surface of the heat conducting element 600 contacts the second adhesive layer. One part of heat generated by the circuit board 400 and the lamp beads 500 is directly transferred to the heat conducting element 600, and the other part of heat is transferred to the heat conducting element 600 through the second adhesive layer, so that one part of heat generated by the circuit board 400 and the lamp beads 500 is transferred to the external environment through the heat conducting element 600. Another heat generated by the circuit board 400 and the lamp bead 500 is transmitted to the external environment through the aluminum casing 830. The heat conducting element 600 and the aluminum shell 830 of the housing 800 work together to provide the lighting fixture 10 with a good heat dissipation effect.

In an embodiment, the second adhesive layer has a higher thermal conductivity coefficient, so that heat generated by the circuit board 400 and the lamp bead 500 can be rapidly transferred to the heat conducting element 600 or the aluminum shell 830, and the circuit board 400 and the lamp bead 500 can be rapidly cooled.

In an embodiment, the light fixture 10 includes a waterproofing membrane 700, the waterproofing membrane 700 being located at an end of the first end 610 facing away from the second end 620. Specifically, the waterproof membrane 700 may be installed in the hollow structure of the first end 610, or may be installed between the end surface of the first end 610 and the first bottom wall 831, so as to prevent water vapor in the outside from entering the sealing cover 300 through the hollow structure of the heat conducting element 600, and prevent air in the outside from entering the sealing cover 300 through the hollow structure of the heat conducting element 600. Waterproof membrane 700 can avoid circuit board 400 and lamp pearl 500 to contact with water promptly, can make the air in sealed lid 300 carry out the heat exchange with external air again to take away the heat that circuit board 400 and lamp pearl 500 during operation produced.

It can be understood that the first adhesive layer 200, the second adhesive layer, the sealing cover 300 and the waterproof film 700 completely wrap the circuit board 400, so that external water vapor cannot contact the circuit board 400 and the lamp beads 500, and the circuit board 400 and the lamp beads 500 are prevented from being corroded and the service life is shortened.

In an embodiment, when the lighting fixture 10 is in an operating state, the circuit board 400 and the lamp beads 500 generate heat, and the heat is transferred to the heat conducting element 600 and the aluminum shell 830 through the first adhesive layer 200 and the second adhesive layer. The outside air can enter the hollow inside of the heat conducting element 600 from the first through hole 801 and the waterproof membrane 700, then enter the sealing cover 300, flow into the hollow inside of the heat conducting element 600 again after flowing in the sealing cover 300, take away the heat generated by the work of the circuit board 400 and the lamp bead 500, and reduce the temperature of the heat conducting element.

In an embodiment, the material of the heat conducting element 600 is gold or other material with high thermal conductivity, which is not limited herein.

In one embodiment, a method of making a lighting fixture 10 is provided. The heat conducting element 600 and the waterproof film 700 are fixed to the first through hole 801, and the waterproof film 700 is located between the end surface of the first end 610 and the first bottom wall 831. Carry out electric connection with cable 900 and the circuit board 400 that is equipped with lamp pearl 500, install circuit board 400 in casing 800, second end 620 wears to establish the second through-hole 410 of circuit board 400, places cable 900 in installation department 843. Pass through buckle and draw-in groove lock with connector link 860 and installation department 843 for installation department 843 and connector link 860 are stable to be cooperated, and first sand grip 844, the second sand grip 861 on the pore wall of the perforation 802 that installation department 843 and connector link 860 formed compress tightly cable 900, make perforation 802 and cable 900 sealed cooperation, thereby make casing 800 can not leak gluey in perforation 802 department. Cover sealed lid 300 and establish the one side that is equipped with lamp pearl 500 of circuit board 400, and sealed lid 300 covers and establishes whole lamp pearl 500. Glue is poured into the casing 800, so that the space between the outer periphery of the sealing cover 300 and the inner surface of the casing 800 is filled with the glue, and a part of the glue may flow into the space between the circuit board 400 and the bottom case 810, so that the first glue layer 200 is formed on the outer periphery of the sealing cover 300, the second glue layer is formed between the circuit board 400 and the bottom case 810, and the heat conducting element 600 is surrounded by the second glue layer. The first adhesive layer 200, the sealing cover 300, the second adhesive layer and the waterproof film 700 completely isolate the circuit board 400 from external moisture. The cover body 100 is used to cover the housing 800, and the lighting fixture 10 of the present application is manufactured.

In the lighting fixture 10 of the present application, the bottom case 810 is provided with the first through hole 801, the circuit board 400 is provided with the second through hole 410, and the circuit board 400 is covered with the sealing cover 300. The heat conduction element 600 one end of hollow structure is fixed in first through-hole 801, the other end is fixed in second through-hole 410, make the air in the sealed lid 300 can produce the heat exchange with the air convection of external world, thereby take away the heat that circuit board 400 and lamp pearl 500 during operation produced, heat conduction element 600 and circuit board 400 direct contact, its superior heat-conducting ability makes the temperature of circuit board 400 and lamp pearl 500 more be close to the surface temperature of illumination lamps and lanterns 10, the difference in temperature is littleer or nearly the same, thereby can prolong the life of the electronic components of illumination lamps and lanterns 10 kernel by a wide margin, and then prolong the whole life of illumination lamps and lanterns 10. Be equipped with water proof membrane 700 between first end 610 and the first diapire 831, prevent outside steam to get into inside sealed lid 300, avoid circuit board 400 and lamp pearl 500 to be corroded, prolong circuit board 400 and lamp pearl 500's life. Because the heat conducting element and the waterproof film enable the sealing cover 300 to be communicated with the outside, the air pressure in the sealing cover 300 is approximately equal to the air pressure in the outside, so that the sealing cover 300 is prevented from deforming due to the fact that the sealing cover 300 is different from the outside air pressure, and sealing failure caused by the fact that the sealing cover 300 is deformed and is separated from the first adhesive layer 200 is further avoided.

Furthermore, the housing 800 is formed by the aluminum housing 830 and the plastic housing 840, a part of the structure of the aluminum housing 830 is wrapped by the plastic housing 840, and the rest of the structure is not wrapped by the plastic housing 840, so that the lighting fixture 10 can dissipate heat through the portion of the aluminum housing 830 that is not wrapped, and the heat dissipation efficiency of the lighting fixture 10 is improved.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the claims. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims (10)

1. The utility model provides an illumination lamp, can with cable electric connection, its characterized in that includes:

the shell is provided with a first through hole;

the circuit board is positioned in the shell and provided with a second through hole;

the lamp bead is electrically connected with the circuit board and is arranged on one side of the circuit board, which is far away from the first through hole;

the sealing cover covers one side of the circuit board, which is provided with the lamp beads, and covers the lamp beads;

the heat conducting element is of a hollow structure, one end of the heat conducting element is positioned in the first through hole, and the other end of the heat conducting element is positioned in the second through hole; and

a waterproof film covering one end of the heat conductive member at the first through hole;

through the first through hole, the second through hole and the heat conduction element, the air in the sealing cover can exchange heat with the outside air.

2. The lighting fixture of claim 1, including a first glue layer on a side of the circuit board where the sealing cover is disposed, the sealing cover protruding from the first glue layer.

3. The light fixture of claim 1, wherein the housing comprises a perimeter shell and a bottom shell; the lighting lamp comprises a second adhesive layer, the second adhesive layer is located between the bottom shell and the circuit board, and the second adhesive layer surrounds the heat conducting element.

4. A lighting fixture as recited in claim 1, comprising a cover on a side of the sealing cover facing away from the circuit board, the cover covering the housing.

5. A lighting fixture as recited in any one of claims 1-4, wherein said heat conduction element is of a stepped cylindrical configuration, said heat conduction element comprising a first end and a second end, said second end having a diameter that is less than a diameter of said first end; the first end is fixed to the first through hole, and the second end is fixed to the second through hole.

6. A lighting fixture as recited in any one of claims 1-4, wherein said housing is formed from an aluminum shell and a plastic shell, said plastic shell encapsulating a portion of said aluminum shell.

7. The lighting fixture of claim 6, wherein the housing comprises a bottom shell and a peripheral shell, and the first through hole is opened in the bottom shell;

the aluminum shell comprises a first bottom wall and a first peripheral wall, the plastic shell comprises a second bottom wall and a second peripheral wall, the first bottom wall and the second bottom wall form the bottom shell together, and partial structure of the first bottom wall is wrapped by the second bottom wall; the first peripheral wall and the second peripheral wall together form the peripheral shell, and the partial structure of the first peripheral wall is wrapped by the second peripheral wall.

8. A lighting fixture as recited in claim 7, wherein a portion of said first bottom wall that is not wrapped by said second bottom wall is recessed and/or a portion of said first perimeter wall that is not wrapped by said second perimeter wall is recessed.

9. A light fixture as recited in claim 7, wherein the first through-hole is a stepped, circular hole, the first through-hole having a first diameter at the first bottom wall, the second through-hole having a second diameter at the second bottom wall, the first diameter being less than the second diameter, an end of the thermally conductive element abutting the first bottom wall.

10. A lighting fixture as recited in any one of claims 1-4, wherein said housing defines a through hole, said cable is inserted through said through hole and electrically connected to said circuit board, and said cable is sealingly connected to a wall of said through hole.

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