Heat dissipation mechanism of LED automobile lamp

Abstract

The utility model relates to the technical field of automobile lamps, in particular to a heat dissipation mechanism of an LED automobile lamp, which comprises a base, a lamp shell, a connecting column and a lamp bead, the inner wall of the base is fixedly connected with a fixing plate, the upper end face of the fixing plate is provided with a heat dissipation substrate, the upper end face of the heat dissipation substrate is provided with a heat dissipation base, and the heat dissipation base is fixedly connected with the lamp shell. A temperature equalizing structure is arranged in the heat dissipation base and comprises a cover plate which is arranged at the bottom end in the heat dissipation base and abuts against the heat dissipation base plate, a plurality of heat pipes are installed on the upper end face of the cover plate, a plurality of heat dissipation fins are arranged on the outer walls of the heat pipes, and heat generated by lamp beads can be absorbed through the heat dissipation base plate. Heat is absorbed through the multiple heat pipes and then dissipated through the multiple heat dissipation fins, the heat can be evenly distributed in a large area by arranging the multiple heat pipes and the heat dissipation fins, and therefore rapid heat dissipation is achieved in a uniform-temperature heat dissipation mode.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of automobile lamps and lanterns, in particular to a heat dissipation mechanism of LED automobile lamps and lanterns. BACKGROUND

[0002] In order to ensure safe driving, various traffic lights are installed on the automobile. The automobile lamp has a very important role in driving safety, so it is very important to ensure the normal use of the lamp.

[0003] The light source of the lamp is sealed in the lamp shell, so the temperature in the lamp is very high after the lamp is used for a period of time, which will greatly reduce the service life of the lamp.

[0004] At present, the heat dissipation of the automobile lamp is mostly directly through the setting of the heat dissipation plate, and the heat transfer performance of the lamp bead is poor, and the heat of the lamp cannot be dispersed and dissipated, resulting in low heat dissipation efficiency, so it is necessary to provide a heat dissipation mechanism of LED automobile lamps and lanterns to solve the above problems. INVENTION CONTENTS

[0005] The utility model discloses a heat dissipation mechanism of LED automobile lamps and lanterns, which can uniformly distribute heat in a large area, thereby realizing rapid heat dissipation through uniform temperature heat dissipation.

[0006] In order to achieve the above-mentioned purpose, the utility model provides the following technical scheme: a heat dissipation mechanism of LED automobile lamps and lanterns, including base, lamp shell, connecting column and lamp bead, the lamp shell is arranged below the base, the inner wall of the base is fixedly connected with the fixed plate, the lamp bead is fixedly connected to the lower end surface of the fixed plate and is located in the middle part of the base, the connecting column is arranged above the base, the upper end surface of the fixed plate is installed with the heat dissipation base plate, the upper end surface of the heat dissipation base plate is installed with the heat dissipation base, the inside of the heat dissipation base is provided with the uniform temperature structure, the uniform temperature structure includes the cover plate that is arranged in the inside bottom end of the heat dissipation base and abuts with the heat dissipation base plate, the upper end surface of the cover plate is installed with a plurality of heat pipes, the outer wall of a plurality of heat pipes is provided with a plurality of heat dissipation fins, the connecting place of the outer wall of a plurality of heat pipes and a plurality of heat dissipation fins is bonded with the heat conduction adhesive.

[0007] In order to improve the heat transfer performance between the heat dissipation base plate and the heat pipe, as a heat dissipation mechanism of LED automobile lamps and lanterns of the utility model, the inner wall of the cover plate and the bottom end of a plurality of heat pipes are provided with a capillary structure layer.

[0008] In order to increase the diffusion area of heat, as a heat dissipation mechanism of LED automobile lamps and lanterns of the utility model, the upper end of the heat pipe is a horn-shaped structure.

[0009] In order to make the heat dissipation fin radiate heat, as a kind of LED automobile lamp's heat dissipation mechanism of the utility model preferably, the outer wall of the heat dissipation base is provided with a plurality of inclined heat dissipation holes, the inside of a plurality of heat dissipation holes is provided with filter screen.

[0010] In order to improve the heat dissipation efficiency of lamp, as a kind of LED automobile lamp's heat dissipation mechanism of the utility model preferably, the inside of the heat dissipation base is installed with the heat dissipation plate above the temperature equalizing structure.

[0011] In order to improve the heat transfer, as a kind of LED automobile lamp's heat dissipation mechanism of the utility model preferably, the lower end surface of the cover plate is provided with a plurality of grooves.

[0012] Compared with the prior art, the utility model has the beneficial effects as follows:

[0013] The utility model discloses a heat dissipation base can absorb the heat generated by lamp pearl first, and makes the heat be absorbed through a plurality of heat pipes, and then radiates heat through a plurality of heat dissipation fins, and further through the setting of a plurality of heat pipes and heat dissipation fins, heat can be evenly distributed in a large area, so that the mode of temperature equalizing heat dissipation is realized to radiate heat quickly. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is the overall structural drawing of the utility model;

[0015] Figure 2 It is the cover plate's elevation structure drawing of the utility model;

[0016] Figure 3 It is the heat dissipation base's elevation structure drawing of the utility model; Figure 1 It is the A place enlarged view of the utility model.

[0017] In the drawing: 1, base;101, fixed plate;2, lamp shell;3, connecting column;4, lamp pearl;5, heat dissipation base plate;501, heat dissipation base;502, heat dissipation hole;6, cover plate;601, groove;602, heat pipe;603, heat dissipation fin;604, heat-conducting adhesive;7, heat dissipation plate. DETAILED DESCRIPTION

[0018] Please refer to Figures 1 to 3The utility model provides a kind of heat dissipation mechanism of LED automobile lamps, including pedestal 1, lamp shell 2, connecting column 3 and lamp pearl 4, lamp shell 2 is arranged below pedestal 1, the inner wall of pedestal 1 is fixedly connected with fixed plate 101, lamp pearl 4 is fixedly connected to the lower end surface of fixed plate 101 and is located in the middle of pedestal 1, connecting column 3 is arranged above pedestal 1, the upper end surface of fixed plate 101 is installed with heat dissipation base plate 5, the upper end surface of heat dissipation base plate 5 is installed with heat dissipation pedestal 501, the inside of heat dissipation pedestal 501 is provided with uniform temperature structure, uniform temperature structure includes the cover plate 6 being arranged in the inside bottom end of heat dissipation pedestal 501 and being in abutment with heat dissipation base plate 5, the upper end surface of cover plate 6 is installed with multiple heat pipes 602, the outer wall of multiple heat pipes 602 is provided with multiple radiating fins 603, and the connecting place of the outer wall of multiple heat pipes 602 and multiple radiating fins 603 is bonded with heat-conducting adhesive 604.

[0019] In the embodiment: by setting the uniform temperature structure in the heat dissipation pedestal 501, rapid heat dissipation can be achieved, specifically by the heat dissipation base plate 5 can absorb the heat generated by the lamp pearl 4, and the heat can be absorbed by the multiple heat pipes 602, and the heat absorption rate can be improved by the multiple heat pipes 602, the heat absorbed by the heat pipe 602 can be dissipated by the multiple radiating fins 603, and the heat can be evenly distributed in a large area by setting the multiple heat pipes 602 and the radiating fins 603, so that rapid heat dissipation is realized by the way of uniform temperature heat dissipation.

[0020] As a technical optimization scheme of the utility model, the inner wall of the cover plate 6 and the bottom end of the multiple heat pipes 602 are provided with capillary structure layers.

[0021] In the embodiment: the capillary structure layers on the inner wall of the cover plate 6 and the bottom end of the multiple heat pipes 602 (the capillary structure layer is the existing structure in the uniform temperature plate in the prior art, which is not described in detail here) can improve the heat transfer performance between the heat dissipation base plate 5 and the heat pipe 602.

[0022] As a technical optimization scheme of the utility model, the upper end of the heat pipe 602 is in a horn-shaped structure.

[0023] In the embodiment: the upper end of the heat pipe 602 is in a horn-shaped structure, which can increase the diffusion area of heat, thereby improving the heat dissipation efficiency.

[0024] As a technical optimization scheme of the utility model, the outer wall of the heat dissipation pedestal 501 is provided with multiple heat dissipation holes 502 arranged obliquely, and the inside of each heat dissipation hole 502 is provided with a filter screen.

[0025] In the embodiment: the multiple heat dissipation holes 502 can dissipate heat from the radiating fins 603, and the filter screen can prevent external impurities from entering the heat dissipation holes 502.

[0026] As a technical optimization scheme of the utility model, the inside of the heat dissipation base 501 is provided with the heat dissipation plate 7 above the uniform temperature structure.

[0027] In the embodiment, the heat dissipation plate 7 can further improve the heat dissipation efficiency of the lamp.

[0028] As a technical optimization scheme of the utility model, the lower end face of the cover plate 6 is provided with a plurality of grooves 601.

[0029] In the embodiment, the grooves 601 can improve the heat transfer.

[0030] Working principle: firstly, the heat dissipation base plate 5 can absorb the heat generated by the lamp beads 4, the inner wall of the cover plate 6 and the bottom end capillary structure layer of the plurality of heat pipes 602 (the heat pipe is the known structure in the prior art 3D uniform temperature plate) can improve the heat transfer performance between the heat dissipation base plate 5 and the heat pipe 602, and the heat can be absorbed by the plurality of heat pipes 602, and the heat absorption rate can be improved by the plurality of heat pipes 602, the heat absorbed by the heat pipe 602 can be dissipated by the plurality of heat dissipation fins 603, and the heat can be evenly distributed in a large area by setting the plurality of heat pipes 602 and the heat dissipation fins 603, so as to realize rapid heat dissipation by the uniform heat dissipation mode, and the heat dissipation fins 603 can be cooled by the plurality of heat dissipation holes 502, and the heat dissipation plate 7 is arranged above the uniform temperature structure, which can further improve the heat dissipation effect of the lamp.

[0031] The above is only a preferred embodiment of the utility model, and is not used to limit the utility model, any modification, equivalent replacement and improvement within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A heat dissipation mechanism for an LED automotive lamp, comprising a base (1), a lamp housing (2), a connecting post (3), and an LED bead (4), wherein the lamp housing (2) is disposed below the base (1), a fixing plate (101) is fixedly connected to the inner wall of the base (1), the LED bead (4) is fixedly connected to the lower end face of the fixing plate (101) and located in the middle of the base (1), the connecting post (3) is disposed above the base (1), and a heat dissipation substrate (5) is mounted on the upper end face of the fixing plate (101), characterized in that: A heat dissipation base (501) is installed on the upper surface of the heat dissipation substrate (5). A temperature equalization structure is provided inside the heat dissipation base (501). The temperature equalization structure includes a cover plate (6) disposed at the bottom of the heat dissipation base (501) and abutting against the heat dissipation substrate (5). A plurality of heat pipes (602) are installed on the upper surface of the cover plate (6). A plurality of heat dissipation fins (603) are provided on the outer wall of the plurality of heat pipes (602). Thermally conductive adhesive (604) is bonded to the connection between the outer wall of the plurality of heat pipes (602) and the plurality of heat dissipation fins (603).

2. The heat dissipation mechanism for an LED automotive lamp according to claim 1, characterized in that: The inner wall of the cover plate (6) and the bottom of the multiple heat pipes (602) are provided with capillary structure layers.

3. The heat dissipation mechanism for an LED automotive lamp according to claim 1, characterized in that: The upper end of the heat pipe (602) has a trumpet-shaped structure.

4. The heat dissipation mechanism for an LED automotive lamp according to claim 1, characterized in that: The outer wall of the heat dissipation base (501) is provided with a plurality of inclined heat dissipation holes (502), and each of the plurality of heat dissipation holes (502) is provided with a filter screen.

5. The heat dissipation mechanism for an LED automotive lamp according to claim 1, characterized in that: The heat dissipation base (501) has a heat dissipation plate (7) installed inside, which is located above the temperature equalization structure.

6. The heat dissipation mechanism for an LED automotive lamp according to claim 1, characterized in that: The lower end face of the cover plate (6) is provided with a plurality of grooves (601).

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