Heat dissipation structure of automobile lamp

Abstract

The utility model discloses an automobile lamp heat dissipation structure, which relates to the technical field of automobile lamps and comprises an annular lamp housing, a lamp holder is fixedly mounted on one side of the annular lamp housing, heat dissipation fins are fixedly mounted on one side of the lamp holder, and an auxiliary heat dissipation component and a heat conduction component are arranged on the inner side of one end of the annular lamp housing. According to the technical scheme, the auxiliary heat dissipation assembly is arranged, specifically, at the high temperature, the driving motor drives the driving gear to be meshed with the driven gear, then the driven gear is meshed with the adjusting screw rod, the adjusting screw rod drives the conical head to contract towards the inner side of the annular lamp shell, and at the moment, when an automobile runs at a high speed, the conical head is used for guiding air; and then air is guided to the heat dissipation fins through the air guide openings, auxiliary heat dissipation is conducted, and therefore the heat dissipation capacity of the automobile lamp at the high temperature is improved, and the working stability of the automobile lamp in the high-temperature environment is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile lamps, in particular to a heat dissipation structure of an automobile lamp. Background Art

[0002] With the development of society, vehicles are used more and more frequently, and headlights are an indispensable part of vehicles. During use, headlights convert part of the electrical energy into light energy, and the rest is dissipated into the surrounding environment in the form of heat. The heat of the entire headlight comes from the lamp beads. When the temperature of the lamp beads exceeds its own tolerance limit, the lamp beads will quickly decay, the brightness of the headlights will dim, and the life span will be greatly reduced. In serious cases, the headlights may malfunction or even cause traffic accidents. The heat dissipation of headlights determines the service life of headlights to a certain extent.

[0003] Currently, a common method for heat dissipation of car lights is to add heat dissipation fins for heat conduction, and then use the heat dissipation fins to dissipate most of the heat. Due to the complex operating environment of car lights, car lights need to dissipate heat quickly at high temperatures, but car lights are installed in the car body, the air flow is poor, and the heat dissipation is poor. At low temperatures, the heat of the car lights themselves is dissipated, the temperature in the lamp housing is insufficient, and fog is easily generated in the lamp housing. Considering the impact of high and low temperature environments, it is very necessary to improve the heat resistance and cold resistance of car lights. Therefore, a heat dissipation structure for automobile lights is provided to solve the above problems. Utility Model Content

[0004] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide a heat dissipation structure for automobile lamps, so as to solve the problem in the prior art that due to the complex use environment of the lamps, the lamps need to dissipate heat quickly at high temperatures, but the lamps are installed in the vehicle body, the air flow is poor, the heat dissipation is poor, and at low temperatures the heat of the lamps themselves is dissipated, the temperature in the lamp housing is insufficient, and fog is easily generated in the lamp housing.

[0005] In view of this, the utility model provides a heat dissipation structure of an automobile lamp, comprising an annular lamp housing, a lamp holder is fixedly mounted on one side of the annular lamp housing, a heat dissipation fin is fixedly mounted on one side of the lamp holder, and an auxiliary heat dissipation component and a heat conduction component are arranged on the inner side of one end of the annular lamp housing;

[0006] The auxiliary heat dissipation component includes a limit ring, an air guide port, a back plate, a fixed cover, a driven gear, a driving motor, a driving gear, an adjusting screw, a cone head, a limit block and a limit groove. The limit ring is fixedly connected to the inner side of one end of the annular lamp housing, the air guide port is arranged on the inner side of the annular lamp housing, the back plate is fixedly installed on one end of the annular lamp housing, the fixed cover is fixedly installed on one side of the back plate, the driven gear is rotatably connected between the back plate and the fixed cover, the driving motor is fixedly installed on one side of the back plate, the driving gear is fixedly installed on one end of the output shaft of the driving motor, one end of the adjusting screw is movably installed on the axis of the driven gear, the cone head is fixedly connected to one end of the adjusting screw, the limit block is fixedly connected to the outside of the cone head, and the limit groove is arranged on the inner side of the annular lamp housing.

[0007] Optionally, the air guide ports are arranged in a circular array on the inner side of the annular lamp housing, and the air guide ports are located on the inner side of the heat dissipation fins.

[0008] Optionally, the driven gear is rotatably connected to the outer wall of the adjusting screw at its axis, and the adjusting screw is threadedly connected to the driven gear at its axis.

[0009] Optionally, the driven gear is meshed with the driving gear.

[0010] Optionally, the cone head is slidably connected to the inner side of the annular lamp housing, and the cone head is abutted against the inner side of the limiting ring.

[0011] Optionally, the cone head is located inside the air guide port.

[0012] Optionally, the limiting block matches the limiting groove, and the limiting block is slidably connected to the inner side of the limiting groove.

[0013] Optionally, the heat conductive component includes a first slot, a second slot, a heat conductive block and a heat dissipation block, the first slot and the second slot are respectively opened on the inner side of the annular lamp housing and one end of the heat dissipation fin, the heat conductive block is fixedly installed on the inner side of the heat dissipation fin, and one end of the heat dissipation block is fixedly connected to one end of the heat conductive block.

[0014] Optionally, one side of the heat conducting block is disposed against a side wall at one end of the heat dissipating fin.

[0015] Optionally, one end of the heat dissipation block passes through the first slot and the second slot respectively and is arranged between the annular lamp housing and the lamp holder.

[0016] It can be seen from the above technical solutions that the embodiments of the utility model have the following advantages:

[0017] 1. The utility model discloses a heat dissipation structure of a car lamp, by setting an auxiliary heat dissipation component. Specifically, at high temperature, the driving motor drives the driving gear to mesh with the driven gear, and then the driven gear meshes with the adjusting screw, so that the adjusting screw drives the cone head to shrink to the inside of the annular lamp shell. At this time, when the car is running at high speed, the cone head is used to guide the wind, and then the wind is guided to the heat dissipation fins through the air guide port to perform auxiliary heat dissipation, thereby improving the heat dissipation capacity of the car lamp at high temperature and improving the working stability of the car lamp in a high temperature environment.

[0018] 2. The utility model provides a heat dissipation structure for automobile lamps. Specifically, when used in a low-temperature environment, the cone head fits with the limit ring to close the middle of the annular lamp shell. At this time, when the lamp is in use, the heat of the lamp holder is directed to the heat dissipation fins, and then the heat dissipation fins direct the temperature to the heat conductive block, and then to the heat dissipation block. At this time, the heat dissipation block dissipates heat between the annular lamp shell and the lamp holder, thereby increasing the temperature inside the annular lamp shell, reducing the moisture content inside the annular lamp shell, avoiding the generation of fog, and improving the working stability of the lamp at low temperatures.

[0019] These features and advantages of the present invention will be disclosed in detail in the following specific implementation manners and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0021] Figure 1 It is a schematic diagram of the structure of the utility model;

[0022] Figure 2 This is an exploded view of the structure of the utility model;

[0023] Figure 3 This is a schematic diagram of the structure of the annular lamp housing of the utility model;

[0024] Figure 4 This is a schematic diagram of the heat dissipation fin structure of the utility model;

[0025] Figure 5 This is a schematic diagram of the structure of the auxiliary heat dissipation component of the utility model.

[0026] Explanation of the accompanying drawings: 1. annular lamp housing; 2. lamp holder; 3. heat dissipation fin; 401. limiting ring; 402. air guide port; 403. back plate; 404. fixing cover; 405. driven gear; 406. driving motor; 407. driving gear; 408. adjusting screw; 409. cone head; 410. limiting block; 411. limiting slot; 501. first slot; 502. second slot; 503. heat conduction block; 504. heat dissipation block. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0029] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of the features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or solutions that satisfy both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the utility model.

[0030] A heat dissipation structure of an automobile lamp according to an embodiment of the utility model will be described in detail below with reference to the accompanying drawings.

[0031] Example 1

[0032] For easier understanding, see Figures 1 to 5The utility model provides an embodiment of a heat dissipation structure of an automobile lamp, comprising an annular lamp housing 1, a lamp holder 2 is fixedly mounted on one side of the annular lamp housing 1, a heat dissipation fin 3 is fixedly mounted on one side of the lamp holder 2, and an auxiliary heat dissipation component and a heat conduction component are arranged on the inner side of one end of the annular lamp housing 1;

[0033] The auxiliary heat dissipation component includes a limit ring 401, an air guide port 402, a rear plate 403, a fixed cover 404, a driven gear 405, a driving motor 406, a driving gear 407, an adjusting screw 408, a cone head 409, a limit block 410 and a limit groove 411. The limit ring 401 is fixedly connected to the inner side of one end of the annular lamp housing 1, the air guide port 402 is opened on the inner side of the annular lamp housing 1, the rear plate 403 is fixedly installed at one end of the annular lamp housing 1, the fixed cover 404 is fixedly installed on one side of the rear plate 403, the driven gear 405 is rotatably connected between the rear plate 403 and the fixed cover 404, the driving motor 406 is fixedly installed on one side of the rear plate 403, the driving gear 407 is fixedly installed on one end of the output shaft of the driving motor 406, and one end of the adjusting screw 408 is movably installed on the shaft of the driven gear 405 The cone head 409 is fixedly connected to one end of the adjusting screw 408, the limit block 410 is fixedly connected to the outside of the cone head 409, the limit groove 411 is opened on the inner side of the annular lamp housing 1, the air guide port 402 is arranged in a circular array on the inner side of the annular lamp housing 1, and the air guide port 402 is located on the inner side of the heat dissipation fin 3, the driven gear 405 is rotatably connected to the outer wall of the adjusting screw 408 at the axis center, the adjusting screw 408 and the driven gear 405 are threadedly connected at the axis center, the driven gear 405 is meshed with the driving gear 407, the cone head 409 is slidably connected to the inner side of the annular lamp housing 1, the cone head 409 is abutted against the inner side of the limit ring 401, the cone head 409 is located on the inner side of the air guide port 402, the limit block 410 matches the limit groove 411, and the limit block 410 is slidably connected to the inner side of the limit groove 411.

[0034] It should be noted that, by setting an auxiliary heat dissipation component, the auxiliary heat dissipation component is provided with a limit ring 401, an air guide port 402 and a cone head 409, and the cone head 409 cooperates with the limit ring 401 to open and close the middle part of the annular lamp housing 1. When opened, the cone head 409 is used to guide the air to the air guide port 402, so that the wind blows to the heat dissipation fins 3 for auxiliary heat dissipation, and by setting a rear plate 403, a fixed cover 404, a driven gear 405, a driving motor 406, a driving gear 407 and an adjusting screw 408, the driving motor 406 The driving gear 407 is driven to rotate, and the driven gear 405 meshing with the driving gear 407 is driven, so that the driven gear 405 is meshed with the set adjusting screw 408, thereby pulling the cone head 409 or pushing the cone head 409, so that the cone head 409 cooperates with the limiting ring 401, so that the middle part of the annular lamp housing 1 is opened or closed. When used at high temperature, the car is running at high speed, and the middle part of the annular lamp housing 1 is opened to form a channel, thereby increasing the fluidity of the wind of the annular lamp housing 1, thereby improving the heat dissipation capacity of the car lamp and improving the stability of the car lamp when used at high temperature.

[0035] Example 2

[0036] In some embodiments, Figure 2 , Figure 3 , Figure 4 As shown, the heat-conducting component includes a first slot 501, a second slot 502, a heat-conducting block 503 and a heat-dissipating block 504. The first slot 501 and the second slot 502 are respectively opened on the inner side of the annular lamp housing 1 and one end of the heat-dissipating fin 3. The heat-conducting block 503 is fixedly installed on the inner side of the heat-dissipating fin 3. One end of the heat-dissipating block 504 is fixedly connected to one end of the heat-conducting block 503. One side of the heat-conducting block 503 is against the side wall of one end of the heat-dissipating fin 3. One end of the heat-dissipating block 504 passes through the inner sides of the first slot 501 and the second slot 502 respectively and is arranged between the annular lamp housing 1 and the lamp holder 2.

[0037] It should be noted that, by opening the first slot 501 and the second slot 502, and providing the heat conductive block 503 and the heat dissipation block 504, when used in a low temperature environment, the cone head 409 fits with the limit ring 401, so that the middle part of the annular lamp housing 1 is closed. At this time, when the car lamp is in use, the heat of the lamp head 2 is directed to the heat dissipation fins 3, and then the heat dissipation fins 3 direct the temperature to the heat conductive block 503, and then to the heat dissipation block 504. At this time, the heat dissipation block 504 will dissipate heat between the annular lamp housing 1 and the lamp head 2, thereby increasing the temperature inside the annular lamp housing 1, reducing the moisture content inside the annular lamp housing 1, avoiding the generation of fog, and improving the working stability of the car lamp at low temperatures.

[0038] Working principle: When in use, the driving motor 406 drives the driving gear 407 to rotate, and drives the driven gear 405 meshing with the driving gear 407, so that the driven gear 405 and the set adjusting screw 408 mesh, thereby pulling the cone head 409 to shrink it, so that the middle part of the annular lamp housing 1 is opened. When used at high temperatures, the car is running at high speed, and the middle part of the annular lamp housing 1 is opened to form a channel, thereby increasing the fluidity of the wind of the annular lamp housing 1, thereby improving the heat dissipation capacity of the car lamp and improving the stability of the car lamp when used at high temperatures. When used in a low temperature environment, the driving motor 406 drives the driving gear 407 It rotates in the opposite direction and drives the driven gear 405 meshing with the driving gear 407, so that the driven gear 405 and the set adjusting screw 408 mesh, and the cone head 409 fits with the limit ring 401, so that the middle part of the annular lamp housing 1 is closed. At this time, when the car lamp is in use, the heat of the lamp holder 2 is guided to the heat dissipation fins 3, and then the heat dissipation fins 3 guide the temperature to the heat conductive block 503, and then to the heat dissipation block 504. At this time, the heat dissipation block 504 dissipates heat between the annular lamp housing 1 and the lamp holder 2, thereby increasing the temperature inside the annular lamp housing 1, reducing the moisture content inside the annular lamp housing 1, avoiding the generation of fog, and improving the working stability of the car lamp at low temperatures.

[0039] According to the above embodiment, a heat dissipation structure of an automobile lamp, when the temperature is high, the driving motor drives the active gear to mesh with the driven gear, and then the driven gear meshes with the adjusting screw, so that the adjusting screw drives the cone head to shrink toward the inside of the annular lamp shell. At this time, when the car is driving at high speed, the cone head is used to guide the air, and then the air is guided to the heat dissipation fins through the air guide port to perform auxiliary heat dissipation, thereby improving the heat dissipation capacity of the lamp at high temperature and improving the working stability of the lamp in a high temperature environment. When used in a low temperature environment, the cone head fits with the limit ring, so that the middle part of the annular lamp shell is closed. At this time, when the lamp is in use, the heat of the lamp head is guided to the heat dissipation fins, and then the heat dissipation fins guide the temperature to the heat conductive block, and then to the heat dissipation block. At this time, the heat dissipation block will dissipate heat between the annular lamp shell and the lamp head, thereby increasing the temperature inside the annular lamp shell, reducing the moisture content inside the annular lamp shell, avoiding the generation of fog, and improving the working stability of the lamp at low temperatures.

[0040] As described above, the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A heat dissipation structure for automobile lamps, characterized in that: It comprises an annular lamp housing (1), a lamp holder (2) being fixedly mounted on one side of the annular lamp housing (1), a heat dissipation fin (3) being fixedly mounted on one side of the lamp holder (2), and an auxiliary heat dissipation component and a heat conduction component being arranged on the inner side of one end of the annular lamp housing (1); The auxiliary heat dissipation component comprises a limiting ring (401), an air guide port (402), a rear plate (403), a fixing cover (404), a driven gear (405), a driving motor (406), a driving gear (407), an adjusting screw (408), a cone head (409), a limiting block (410) and a limiting groove (411), wherein the limiting ring (401) is fixedly connected to the inner side of one end of the annular lamp housing (1), the air guide port (402) is provided on the inner side of the annular lamp housing (1), the rear plate (403) is fixedly mounted on one end of the annular lamp housing (1), and the fixing cover (404) is fixedly mounted on the rear plate ( The driven gear (405) is rotatably connected between the rear plate (403) and the fixed cover (404), the driving motor (406) is fixedly mounted on one side of the rear plate (403), the driving gear (407) is fixedly mounted on one end of the output shaft of the driving motor (406), one end of the adjusting screw (408) is movably mounted at the axis of the driven gear (405), the cone head (409) is fixedly connected to one end of the adjusting screw (408), the limit block (410) is fixedly connected to the outside of the cone head (409), and the limit groove (411) is provided on the inside of the annular lamp housing (1).

2. The heat dissipation structure of an automobile lamp according to claim 1, characterized in that: The air guide ports (402) are arranged in a circular array on the inner side of the annular lamp housing (1), and the air guide ports (402) are located on the inner side of the heat dissipation fins (3).

3. The heat dissipation structure of an automobile lamp according to claim 1, characterized in that: The adjusting screw rod (408) is connected to the driven gear (405) at its axis by threaded connection.

4. The heat dissipation structure of an automobile lamp according to claim 1, characterized in that: The driven gear (405) is meshed with the driving gear (407).

5. The heat dissipation structure of an automobile lamp according to claim 1, characterized in that: The cone head (409) is slidably connected to the inner side of the annular lamp housing (1), and the cone head (409) is abutted against the inner side of the limiting ring (401).

6. The heat dissipation structure of an automobile lamp according to claim 1, characterized in that: The cone head (409) is located inside the air guide port (402).

7. The heat dissipation structure of an automobile lamp according to claim 1, characterized in that: The limiting block (410) matches the limiting groove (411), and the limiting block (410) is slidably connected to the inner side of the limiting groove (411).

8. The heat dissipation structure of an automobile lamp according to claim 1, characterized in that: The heat-conducting component comprises a first slot (501), a second slot (502), a heat-conducting block (503) and a heat-dissipating block (504); the first slot (501) and the second slot (502) are respectively arranged on the inner side of the annular lamp housing (1) and one end of the heat-dissipating fin (3); the heat-conducting block (503) is fixedly mounted on the inner side of the heat-dissipating fin (3); and one end of the heat-dissipating block (504) is fixedly connected to one end of the heat-conducting block (503).

9. The heat dissipation structure of an automobile lamp according to claim 8, characterized in that: One side of the heat conducting block (503) is disposed against a side wall at one end of the heat dissipation fin (3).

10. The heat dissipation structure of an automobile lamp according to claim 8, characterized in that: One end of the heat dissipation block (504) passes through the inner sides of the first slot (501) and the second slot (502) respectively and is arranged between the annular lamp housing (1) and the lamp holder (2).

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