CN202511251U - Heat conduction structure of LED lighting lamp - Google Patents

Abstract

A heat conduction structure of an LED lighting lamp comprises a lamp cover body, an insulating heat conduction support plate and at least one LED light-emitting element, wherein at least one through hole is formed in the insulating heat conduction support plate, at least one heat conduction column core and at least one insulating heat dissipation body are combined on the insulating heat conduction support plate, the top end of the heat conduction column core extends and abuts against the LED light-emitting element through the through hole, a plurality of insulating heat dissipation structures are arranged on the insulating heat dissipation body in an extending mode around the insulating heat dissipation body, and at least one heat dissipation hole is formed in the position, corresponding to the insulating heat dissipation body, of the lamp cover body. The heat generated by the LED light-emitting element is conducted to the insulating heat sink through the insulating heat-conducting carrier plate and the heat-conducting column core, and then is dissipated to the outside through the heat dissipation holes of the lamp cover body, and part of the heat generated by the electronic element arranged on the circuit layer is conducted to the insulating heat sink through the insulating heat-conducting carrier plate and is dissipated to the outside through the heat dissipation holes of the lamp cover body.

Description

Heat conduction structure of LED lighting fixtures

technical field

The utility model relates to a heat conduction structure of an LED lighting fixture, especially for heat conduction applied to LED light-emitting elements. At least one heat conduction column core is accommodated in at least one accommodating hole of an insulating heat sink, and the insulating heat sink is extended and laid out. The heat conduction structure of the LED lighting fixture that dissipates heat from multiple heat dissipation fins or other insulating heat dissipation structures.

Background technique

LEDs are now widely used in lighting fixtures, but the by-product of LED light-emitting components: heat, has been plagued by the industry.

Because LED light-emitting elements produce heat quickly and dissipate heat easily, LED lamps will use metal heat dissipation modules to dissipate heat. Its structure is generally to insert many metal spacers vertically on a metal base for heat dissipation. The LED light-emitting element will be attached to the insulating material first, and then attached to the metal base, but the insulating material is not easy to conduct heat, and the heat cannot be dissipated, and a lot of material costs must be increased.

The lampshade and heat sink of traditional LED lamps are also designed to be sealed to prevent electric shock. And the electronic components on the power module are all shortened due to long-term high temperature.

To sum up, the commonly used heat conduction structure technology obviously has the following defects: poor heat dissipation, indiscriminate heat and electricity, which is unsafe, complex structure and difficult installation, many materials, bulky and high cost.

Utility model content

The technical problem solved by the utility model is to provide a heat conduction structure of an LED lighting fixture, which can achieve the effect of heat dissipation and insulation safety.

The technical solution of the utility model is:

A heat conduction structure of an LED lighting fixture, comprising a lamp cover, an insulating and heat-conducting carrier plate arranged in the lamp cover, and at least one LED light-emitting element arranged on the insulating and heat-conducting carrier plate in an LED lighting fixture, Wherein, the insulating and heat-conducting carrier board is provided with at least one through hole, and the insulating and heat-conducting carrier board is combined with at least one heat-conducting column core and at least one insulating heat sink, wherein the top end of the heat-conducting column core extends through the through-hole to abut against the LED light-emitting element, the insulating heat sink is provided with at least one accommodation hole, the heat conduction column core is accommodated in the accommodation hole, and the insulation heat dissipation body is extended with a plurality of insulation heat dissipation structures around it, and the lamp cover corresponds to At least one heat dissipation hole is opened at the insulating heat dissipation body.

In the heat conduction structure of the above-mentioned LED lighting fixture, one end of the heat conduction column core is exposed in the accommodating hole of the insulation heat dissipation body.

In the heat conduction structure of the above-mentioned LED lighting fixture, the insulating heat dissipation body is fixed on the insulating heat conduction carrier plate by a plurality of fixing pieces.

In the heat conduction structure of the above-mentioned LED lighting fixture, the fixing member is a screw.

In the heat conduction structure of the above-mentioned LED lighting fixture, the fixing member is a tenon and a corresponding hole.

In the heat conduction structure of the above-mentioned LED lighting fixture, the fixing part is an adhesive sheet.

In the heat conduction structure of the above-mentioned LED lighting fixture, wherein, the fixing part is a cold-compression structure.

In the heat conduction structure of the above-mentioned LED lighting fixture, the said fixing member is a thermocompression bonding structure.

The utility model aims at the heat conduction structure of the existing LED lighting fixture or the disadvantage of poor heat dissipation due to the integration of heat and electricity, or the disadvantage of complex structure, and provides a heat conduction structure of the LED lighting fixture, which is designed with at least one insulating heat sink There is at least one accommodating hole, and at least one heat conduction column core is accommodated in the accommodating hole, and the insulating heat dissipation body is extended with a plurality of insulating heat dissipation fins or other heat dissipation structures around it, and achieves It has the function of heat dissipation and insulation safety, and its structure is simple, easy to produce, and low in cost, and because it can be locked by self-tapping screws or installed with tenons, or directly bonded with adhesive sheets or cold-pressed or hot-pressed The combined structure is easy to install, and the installation can be expanded with the number of LED light-emitting elements in the LED lighting fixture, thereby also solving the shortcoming that conventional heat-conducting structures must be custom-made.

In the heat conduction structure of an LED lighting fixture proposed by the present invention, at least one through hole is provided on the insulating and heat conducting carrier plate in the lamp cover body, and the insulating and heat conducting carrier plate is combined with at least one heat conducting column core and at least one insulating and heat dissipating plate. Body, wherein the top end of the heat conduction column core extends through the through hole to abut against the LED light-emitting element, the insulating heat dissipation body is provided with at least one accommodating hole, and the heat conduction column core is accommodated in the accommodating hole, the insulator The heat dissipation body is extended with a plurality of insulating and heat dissipation structures around it, and the lamp cover is provided with at least one heat dissipation hole corresponding to the insulation heat dissipation body.

In terms of implementation, the heat dissipation effect of the embodiment using copper or aluminum as the heat conduction column core is much better than that of the traditional multi-layer partition board insertion method.

Known from the above description, the utility model compared with the prior art can indeed achieve the following effects:

The heat conduction structure of the LED lighting fixture provided by the utility model not only has a simplified structure and low cost, but also achieves the effects of heat dissipation, safety and easy installation and operation.

With the design of the utility model, the heat generated when the LED light-emitting element emits light will be conducted to the insulating heat sink through the insulating and heat-conducting carrier plate and the heat-conducting column core, and then dissipated to the outside through the heat dissipation holes of the lamp cover. And part of the heat generated by the electronic components arranged on the circuit layer will be conducted to the insulating heat sink by the insulating and heat-conducting carrier plate, and then dissipated to the outside by the heat dissipation holes of the lamp cover. Therefore, the utility model not only has the above-mentioned effects and advantages, but also because the lamp cover is provided with a plurality of heat dissipation holes, the material used is reduced, the weight is lighter, and the cost is saved. In addition, because of the good heat dissipation effect, the LED Light-emitting components, electronic components on the circuit layer, and even the life of the power module.

Description of drawings

Figure 1 is a schematic diagram of the application of the first embodiment of the utility model and the structure of LED lighting fixtures;

Fig. 2 is a cross-sectional view showing the structure of the first embodiment of the present invention when it is combined with an insulating and heat-conducting carrier board and an LED light-emitting element;

Figure 3 is a cross-sectional view of the structure of the first embodiment of the present invention when it is separated from the insulating and heat-conducting carrier board and the LED light-emitting element;

Fig. 4 shows a perspective view of the insulation and heat dissipation structure of the heat dissipation body in the first embodiment of the present invention as a straight plate heat dissipation structure;

Fig. 5 is a schematic diagram of the heat dissipation of the application of the first embodiment of the utility model and the LED lighting fixture;

Fig. 6 shows a cross-sectional view of the insulation and heat dissipation structure of the insulation radiator in the second embodiment of the present invention as a fin-shaped heat dissipation structure;

Fig. 7 is a cross-sectional view of the preferred embodiment of the second embodiment of the present invention when the structure is separated from the insulating and heat-conducting carrier board and the LED light-emitting element;

Fig. 8 is a cross-sectional view of the preferred embodiment of the third embodiment of the present invention when the structure is separated from the insulating and heat-conducting carrier board and the LED light-emitting element;

Fig. 9 is a cross-sectional view showing the structure of the preferred embodiment of the fourth embodiment of the utility model when it is separated from the insulating and heat-conducting carrier board and the LED light-emitting element.

Explanation of main component labels:

10: Thermal conduction column core 20: Insulating radiator 20a: Insulating radiator

21: Accommodating hole 22: Insulation heat dissipation structure 23: Fin-shaped heat dissipation structure

30: Lamp cover 31: Insulation and heat conduction carrier plate 311: Through hole

32: Cooling holes 40: Circuit layer 42: Fixing parts

50: Electronic components 60: LED lighting components

Detailed ways

In order to have a clearer understanding of the technical features, purposes and effects of the utility model, the specific implementation of the utility model is now described with reference to the accompanying drawings.

The heat conduction structure of an LED lighting fixture proposed by the utility model, please refer to Fig. 1, a schematic diagram of the first embodiment of the utility model applied to the structure of the LED lighting fixture, which shows that the heat conduction column core and the insulating heat dissipation body are installed in the lampshade schematic diagram.

Fig. 2 is a cross-sectional view showing the structure of the first embodiment of the present invention when it is combined with an insulating and heat-conducting carrier board and an LED light-emitting element. Fig. 3 is a cross-sectional view showing the structure of the first embodiment of the utility model when it is separated from the insulating and heat-conducting carrier board and the LED light-emitting element. In the first embodiment of the present utility model, the insulation and heat dissipation structure of the insulating heat dissipation body is a straight plate heat dissipation structure, as shown in FIG. 4 .

Referring to Fig. 1 to Fig. 4 at the same time, the heat conduction structure of the present utility model comprises a heat conduction column core 10, an insulating radiator 20, wherein said insulator radiator 20 is provided with an accommodating hole 21, and said heat conduction column core 10 is accommodated in the accommodating hole 21 , and the insulating heat dissipation body 20 is extended with a plurality of insulating heat dissipation structures 22 around it.

One end of the heat-conducting column core 10 is exposed in the accommodating hole 21 of the insulating heat sink 20 , and the insulating heat-radiating body 20 is installed in a lamp cover 30 , and an insulating heat-conducting carrier plate 31 is disposed inside the lamp cover 30 . The circuit layer 40 is arranged on the insulating and heat-conducting carrier 31 , and a through hole 311 is opened in the insulating and heat-conducting carrier 31 . The lamp cover 30 is provided with a plurality of cooling holes 32 at positions corresponding to the insulating heat sink 20 .

At least one electronic element 50 and LED light emitting element 60 are disposed on the circuit layer 40 of the insulating and heat-conducting carrier board 31 . The top of the thermally conductive column core 10 passes through the through hole 311 of the insulating and thermally conductive carrier board 31 to extend and abut against the LED light emitting element 60 . The insulating heat sink 20 can pass through the insulating heat conducting carrier plate 31 with the fixing member 42 , and the insulating heat sink 20 is locked on the bottom surface of the insulating heat conducting carrier plate 31 .

The fixing member 42 can be a tenon, a hook, a screw, or other equivalent fixing components. For example, in the embodiment structure in the drawings, the fixing member 42 has a corresponding clamping hole (the insulation and heat dissipation structure 22 provided on the top of the insulation heat dissipation body 20, and the insulation and heat conduction carrier board 31 is correspondingly provided with a through hole). The fixing member 42 can also adopt a conventional cold-pressing structure or heat-pressing structure. When the pressing structure is adopted, a suitable cold pressing material or a suitable hot pressing material is selected as the fixing part, and after the fixing part passes through the through hole 311 of the insulating and heat conducting carrier plate 31, it will protrude out of the top surface of the insulating and heat conducting carrier plate 31 The parts are pressed and deformed (cold press or hot press) to achieve the purpose of fixing. In addition, the fixing member 42 can also be an adhesive sheet, so as to directly adhere the insulating heat dissipation body 20 to the bottom surface of the insulating and heat-conducting carrier board 31 . In addition, the plurality of heat dissipation holes 32 provided on the lamp cover 30 correspond to the insulating heat sink 20 and its insulation and heat dissipation structure 22 , so as to facilitate heat discharge to the lamp cover 30 .

As shown in Figure 5, the embodiment of the utility model is applied to the heat dissipation schematic diagram of LED lighting fixtures. When the LED light-emitting element 60 emits light, the heat generated by it will be conducted to the insulating and heat-conducting carrier plate 40 and the heat-conducting column core 10. The heat dissipation body 20 dissipates heat to the outside through the heat dissipation path R through the heat dissipation holes 32 of the lamp cover 30 . Part of the heat generated by the electronic components 50 disposed on the circuit layer 40 will also be conducted to the insulating heat sink 20 through the insulating and heat-conducting carrier 40 , and then dissipated to the outside through the heat dissipation holes 32 of the lamp cover 30 .

With the heat conduction structure of the above-mentioned LED lighting fixture, the heat conduction column core 10 can quickly conduct heat energy to the insulating heat sink 20, and then fully dissipate heat, and heat and electricity are separated to completely insulate the conductive part, which has the effect of improving safety.

In the above structural embodiments, the insulation and heat dissipation structure 22 of the insulation heat dissipation body 20 is a straight plate heat dissipation structure, and those skilled in the art can also replace the heat dissipation structure with any other equivalent insulation and heat dissipation structure. For example, FIG. 6 and FIG. 7 show that the insulation and heat dissipation structure 22 of the insulation heat dissipation body 20 is a fin-shaped heat dissipation structure 23 .

In the above structural embodiment, an LED light-emitting element 60 is provided on the insulating and heat-conducting carrier board 31 as an embodiment description. In actual application (refer to FIG. 8 ), a plurality of LED light-emitting elements 60 can also be arranged on the insulating heat-conducting carrier plate 31, and the bottom of each LED light-emitting element 60 is in contact with a heat-conducting column core 10 respectively. , and then combine each heat-conducting column core 10 with an insulating heat sink 20, so that each LED light-emitting element 60 can achieve a good heat dissipation effect.

Fig. 9 shows a cross-sectional view of the structure of the preferred embodiment of the fourth embodiment of the utility model when it is separated from the insulating and heat-conducting carrier board and the LED light-emitting element. The structure of this embodiment is similar to that of FIG. 8 , and the difference is that one heat conducting column core 10 is respectively combined with an independent insulating heat dissipation body 20 .

The above descriptions are only illustrative specific implementations of the present utility model, and are not intended to limit the scope of the present utility model. Any equivalent changes and modifications made by those skilled in the art without departing from the concept and principles of the present invention shall fall within the protection scope of the present invention.

Claims (8)

1. A heat conduction structure of an LED lighting fixture, comprising a lamp cover body, an insulating and heat-conducting carrier plate arranged in the lamp cover body, and at least one LED light emitting board arranged on the insulating and heat-conducting carrier plate in an LED lighting fixture The component is characterized in that at least one through-hole is opened on the insulating and heat-conducting carrier plate, and the insulating and heat-conducting carrier plate is combined with at least one heat-conducting column core and at least one insulating radiator, wherein the top end of the heat-conducting column core extends through the through-hole to reach Connected to the LED light-emitting element, the insulating radiator is provided with at least one accommodating hole, the heat conduction column core is accommodated in the accommodating hole, and the insulating radiator extends around it with a plurality of insulating and cooling structures. At least one heat dissipation hole is opened on the cover corresponding to the insulating heat dissipation body. 2 . The heat conduction structure of LED lighting fixture according to claim 1 , wherein one end of the heat conduction column core is exposed in the accommodating hole of the insulating heat sink. 3 . 3 . The heat conduction structure of LED lighting fixtures according to claim 1 , wherein the insulating heat sink is fixed to the insulating heat conduction carrier plate by a plurality of fixing pieces. 4 . 4. The heat conduction structure of LED lighting fixtures according to claim 3, wherein the fixing member is a screw. 5. The heat conduction structure of an LED lighting fixture according to claim 3, wherein the fixing member is a tenon and a corresponding hole. 6. The heat conduction structure of an LED lighting fixture according to claim 3, wherein the fixing member is an adhesive sheet. 7. The heat conduction structure of LED lighting fixtures according to claim 3, wherein the fixing member is a cold-compression structure. 8 . The heat conduction structure of LED lighting fixtures according to claim 3 , wherein the fixing member is a thermocompression bonding structure.

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