New energy automobile lamp heat dissipation structure

Abstract

The utility model discloses a new energy automobile lamp heat dissipation structure, which belongs to the technical field of automobile lamps and comprises a lampshade, a plurality of ventilation grooves are formed in the outer wall of the lampshade, a second through groove is formed in the center of the lampshade, and a heat conduction mounting seat is detachably connected into the second through groove. Heat generated at the lamp beads can be adsorbed through the arranged heat mounting base and conveyed to the heat conducting plate through the heat conducting connecting plate, the contact area with air is increased through the heat conducting plate, the heat exchange effect is improved, and the temperature around the lamp beads can be better reduced; a condensing agent is added into a condensing agent box, a conveying pump is arranged in the condensing agent box, the condensing agent is conveyed into a plurality of annular conveying pipes from a condensing agent pipe on one side, after heat at a heat conduction plate is absorbed, the condensing agent returns to the interior of the condensing agent box through a condensing agent pipe on the other side for cooling, and therefore the cooling speed can be higher.

Description

Technical Field

[0001] This utility model belongs to the field of automotive lighting technology, specifically, it relates to a heat dissipation structure for new energy vehicle headlights. Background Technology

[0002] With the rapid development of the automotive industry and the continuous improvement of LED luminous efficacy, the application of LEDs in automotive lighting is becoming increasingly widespread. However, only 20% of the input power of an LED is converted into light energy, while the rest is converted into heat energy. If this heat energy cannot be dissipated in time, it will cause the junction temperature of the LED chip to rise, thereby affecting the chip's performance and lifespan. As LED power gradually increases, heat dissipation has become a prominent issue.

[0003] However, traditional automotive headlights generate a large amount of high-temperature heat after prolonged use. For example, Chinese patent publication number CN216693412U discloses a heat dissipation structure for automotive headlights. This structure uses a heat dissipation mechanism with two sets of small temperature sensors to monitor the temperature around the lamp cover and LED chips in real time. Through a refrigerant box, a micro water pump, a spiral circulation pipe, arc-shaped condenser plates, and heat exchange holes, the high-temperature heat generated inside the lamp cover can be carried away by the refrigerant for heat dissipation, shortening the heat dissipation time, improving the heat dissipation efficiency inside the lamp cover, preventing the continuous accumulation of high-temperature heat inside the lamp cover from damaging the LED chips, and extending the normal service life of the LED chips. Furthermore, by incorporating heat absorption grooves in the condenser plates, heat can be pre-absorbed around the lamp cover, and the accumulated heat can be physically condensed and cooled, improving the efficiency of the arc-shaped condenser plate. The heat dissipation efficiency of the condenser plate is improved by setting a flow guide seat and a flow guide groove, which can effectively guide the high-temperature heat generated around the lamp bead to the lamp cover, while also providing ventilation in the area of ​​the lamp cover and the lamp bead. In this utility model, by setting a thermally conductive gasket, the heat on the surface of the lamp cover can be quickly conducted away, enhancing the heat carrying and heat dissipation effect of the spiral circulation tube. By setting a cover plate and a small pull buckle, it is easy for users to quickly snap the connection between the bracket and the cover plate, and it is also easy for users to add condenser regularly. By setting an installation slot, it is easy for users to guide and tighten the protective cover before installation, improving the installation efficiency between the lamp cover and the protective cover. It can carry away and dissipate the high-temperature heat generated inside the lamp cover with coolant, shorten the heat dissipation time, and improve the heat dissipation efficiency inside the lamp cover.

[0004] While the aforementioned existing technologies can dissipate heat from vehicle lights, the temperature around the LED chip is the highest, and the inability to cool the LED chip in time can easily lead to overheating. Utility Model Content

[0005] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.

[0006] To solve the above problems, the present invention adopts the following technical solution.

[0007] A heat dissipation structure for a new energy vehicle headlight includes a lamp cover. A snap-fit ​​groove is provided on one outer wall of the lamp cover, and a protective cover is detachably connected inside the snap-fit ​​groove. An LED for generating a light source is installed at the center of the lamp cover. Multiple ventilation slots are provided on the outer wall of the lamp cover. A second through slot is provided at the center of the lamp cover, and a heat-conducting mounting base is detachably connected inside the second through slot. A heat-conducting plate is detachably connected to the back of the heat-conducting mounting base. A cooling mechanism is provided on the heat-conducting plate. The heat generated by the LED is transferred to the heat-conducting plate through the heat-conducting mounting base and cooled by the cooling mechanism.

[0008] Preferably, the outer wall of the lamp cover outside the second through slot is provided with multiple first through slots, and the outer wall of the heat-conducting mounting base near the heat-conducting plate is detachably connected with multiple heat-conducting connecting plates passing through the first through slots. The multiple heat-conducting connecting plates are connected to the heat-conducting plate, and the heat generated by the lamp bead during operation is transferred to the heat-conducting plate through the heat-conducting mounting base and the heat-conducting connecting plates.

[0009] Preferably, the cooling mechanism includes annular delivery pipes, condensate pipes, and a condensate box. Multiple annular delivery pipes are installed on the heat-conducting plate and are interconnected. The bottoms of two annular delivery pipes are detachably connected to condensate pipes, and a condensate box is detachably connected between the two condensate pipes. Condensate is added inside the condensate box, and a built-in delivery pump in the condensate box delivers the condensate from one side of the condensate pipe through each annular delivery pipe to absorb heat from the heat-conducting plate. Finally, the condensate returns to the inside of the condensate box from the other side of the condensate pipe for circulation. A mounting bracket is fixedly connected to the lampshade near the bottom of the heat-conducting plate, and the condensate box is detachably connected to the upper end of the mounting bracket.

[0010] Preferably, the heat-conducting plate is provided with multiple heat dissipation grooves, which increase the contact area between the heat-conducting plate and the air.

[0011] Preferably, each annular delivery tube is fitted onto the outer wall of the heat-conducting plate between every two heat dissipation slots.

[0012] Preferably, a circulation mechanism is installed at the upper end of the lampshade between the refrigerant box and the lampshade, which allows the air above and below the lampshade to circulate.

[0013] Preferably, the circulation mechanism includes a circulation fan.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] 1. The heat generated by the LED bead is absorbed by the heat-conducting mounting base and transferred to the heat-conducting plate through the heat-conducting connection plate. The heat-conducting plate increases the contact area with the air, thereby increasing the heat exchange effect and reducing the temperature around the LED bead. The heat-conducting plate adds heat to the inside of the heat-conducting plate and has a built-in delivery pump. The heat-conducting plate absorbs heat from the heat-conducting plate and then returns to the heat-conducting plate through the heat-conducting pipe on the other side for cooling, thus making the cooling speed faster.

[0016] 2. By using a circulating fan to blow air towards the lamp cover near the LED beads, the air from the top of the lamp cover near the LED beads passes through the ventilation grooves and contacts the annular delivery pipe for cooling. Then, the air returns to the bottom of the lamp cover near the LED beads through the circulating fan. This circulation method can transfer the heat from the top to the bottom after cooling through the annular delivery pipe, resulting in a better overall cooling effect and a faster cooling speed. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of a heat dissipation structure for a new energy vehicle headlight according to the present invention;

[0018] Figure 2 This is a schematic diagram of the protective cover structure in this utility model;

[0019] Figure 3 This is a schematic diagram of the heat-conducting plate structure in this utility model;

[0020] Figure 4 This is a schematic diagram of the annular conveying pipe structure in this utility model;

[0021] Figure 5 This is a schematic diagram of the circulating fan structure in this utility model.

[0022] The correspondence between the labels and component names in the attached figures is as follows:

[0023] 100. Lampshade; 101. Protective cover; 102. LED chip; 103. Clip-on slot; 104. Ventilation slot; 105. First through slot; 106. Second through slot; 107. Mounting bracket;

[0024] 200. Heat-conducting plate; 201. Heat dissipation groove; 202. Heat-conducting connecting plate; 203. Heat-conducting mounting base; 204. Annular delivery pipe; 205. Condensate pipe; 206. Condensate box; 207. Circulating fan. Detailed Implementation

[0025] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0026] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0027] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments. The present invention provides the following embodiments.

[0028] like Figure 1 As shown, this is a schematic diagram of a preferred embodiment of the heat dissipation structure for a new energy vehicle headlight. The heat dissipation structure for a new energy vehicle headlight in this embodiment includes a lamp cover 100, with an LED 102 that generates a light source installed at the center of the lamp cover 100. The outer wall of the lamp cover 100 is provided with a snap-fit ​​groove 103, and a protective cover 101 is installed inside the snap-fit ​​groove 103. The protective cover 101 is used to protect the LED 102, and the LED 102 generates a light source to provide illumination for the front of the vehicle.

[0029] like Figure 2 as well as Figure 3 As shown, this is a schematic diagram of the protective cover and heat-conducting plate structure in this embodiment. A second through groove 106 is provided at the center of the lamp cover 100. A heat-conducting mounting base 203 is detachably connected inside the second through groove 106. The lamp bead 102 is installed on the outer wall of the heat-conducting mounting base 203. Multiple heat-conducting connecting plates 202 are detachably connected to the heat-conducting mounting base 203 near the outer wall of the lamp cover 100. Multiple first through grooves 105 are provided on the outer wall of the lamp cover 100 near the lamp bead 102. Each heat-conducting connecting plate 202 passes through the first through groove 105 and is fixedly connected to the heat-conducting plate 200. In this embodiment, the heat-conducting mounting base 203 can absorb the heat generated at the lamp bead 102 and transport it to the heat-conducting plate 200 through the heat-conducting connecting plate 202. The heat-conducting plate 200 increases the contact area with the air and increases the heat exchange effect, which can better reduce the temperature around the lamp bead 102.

[0030] like Figure 3As shown in Figure 4, which is a schematic diagram of the structure of the heat-conducting plate and the annular conveying pipe in this embodiment, the outer wall of the heat-conducting plate 200 is provided with multiple heat dissipation grooves 201. The multiple heat dissipation grooves 201 can further increase the contact area with air, so as to improve the heat exchange effect. An annular conveying pipe 204 is sleeved on the outside of the heat-conducting plate 200 between every two heat dissipation grooves 201. The multiple annular conveying pipes 204 are interconnected. The bottom of two annular conveying pipes 204 is detachably connected to a condensate pipe 205. A condensate box 206 is detachably connected between the two condensate pipes 205. The condensate box 206 is filled with condensate and has a built-in delivery pump. The condensate is delivered from one side of the condensate pipe 205 into the interior of the multiple annular conveying pipes 204. After absorbing the heat at the heat-conducting plate 200, it returns to the interior of the condensate box 206 through the other side of the condensate pipe 205 for cooling, thereby enabling faster cooling.

[0031] It is worth noting that the aforementioned annular delivery pipe 204, condensate pipe 205, and condensate box 206 are the cooling mechanisms in this embodiment. Cooling mechanisms include, but are not limited to, the annular delivery pipe 204, condensate pipe 205, and condensate box 206. Any mechanism that can achieve the cooling function can be applied to this embodiment.

[0032] like Figure 2 as well as Figure 5 As shown, this is a schematic diagram of the protective cover and circulating fan structure in this embodiment. The lamp cover 100 has multiple ventilation slots 104 located outside the multiple first through slots 105. A mounting bracket 107 is fixedly connected to the outer wall of the lamp cover 100 away from the bottom of the lamp beads 102. A refrigerant box 206 is detachably connected to the upper end of the mounting bracket 107. A circulating fan 207 is detachably connected to the upper end of the mounting brackets 107 located between the lamp cover 100 and the refrigerant box 206 on both sides. The circulating fan 207 moves closer to the lamp cover 100. In this embodiment, the air is blown towards the lamp cover 100 near the lamp bead 102 by the circulating fan 207. This causes the air to pass through the ventilation groove 104 and contact the annular conveying pipe 204 for cooling from the top of the lamp cover 100 near the lamp bead 102. Then, the air returns to the bottom of the lamp cover 100 near the lamp bead 102 by the circulating fan 207. This circulation method can transfer the heat from the top to the bottom after cooling through the annular conveying pipe 204, resulting in a better overall cooling effect and a faster cooling speed.

[0033] It is worth noting that the above-mentioned circulating fan 207 is the circulating mechanism in this embodiment. The circulating mechanism includes, but is not limited to, the circulating fan 207. Any mechanism that can make the air above the lampshade 100 flow downwards and circulate repeatedly can be applied to this embodiment.

[0034] The above description, in conjunction with specific embodiments, provides a further detailed explanation of the present utility model. It should not be construed that the specific implementation of the present utility model is limited to these descriptions. For those skilled in the art, several simple deductions or substitutions can be made without departing from the concept of the present utility model, and all such deductions or substitutions should be considered to fall within the scope of protection defined by the claims submitted by the present utility model.

Claims

1. A heat dissipation structure for a new energy vehicle headlight, comprising a lampshade (100), a snap-fit ​​groove (103) provided on one outer wall of the lampshade (100), a protective cover (101) detachably connected inside the snap-fit ​​groove (103), and an LED bead (102) for generating a light source installed at the center of the lampshade (100), characterized in that, The outer wall of the lampshade (100) is provided with multiple ventilation slots (104), and a second through slot (106) is provided at the center of the lampshade (100). A heat-conducting mounting base (203) is detachably connected inside the second through slot (106). A heat-conducting plate (200) is detachably connected to the back of the heat-conducting mounting base (203). A cooling mechanism is provided on the heat-conducting plate (200). The heat generated by the lamp bead (102) is transferred to the heat-conducting plate (200) through the heat-conducting mounting base (203) and cooled by the cooling mechanism.

2. The heat dissipation structure for new energy vehicle headlights according to claim 1, characterized in that, The outer wall of the lampshade (100) outside the second through slot (106) is provided with multiple first through slots (105). The outer wall of the heat-conducting mounting base (203) near the heat-conducting plate (200) is detachably connected with multiple heat-conducting connecting plates (202) passing through the first through slots (105). The multiple heat-conducting connecting plates (202) are connected to the heat-conducting plate (200). The heat generated by the lamp bead (102) is transferred to the heat-conducting plate (200) through the heat-conducting mounting base (203) and the heat-conducting connecting plates (202).

3. The heat dissipation structure for new energy vehicle headlights according to claim 2, characterized in that, The cooling mechanism includes annular delivery pipes (204), refrigerant pipes (205), and a refrigerant box (206). Multiple annular delivery pipes (204) are installed on the heat-conducting plate (200), and these pipes are interconnected. A refrigerant pipe (205) is detachably connected to the bottom of two annular delivery pipes (204), and a refrigerant box (206) is detachably connected between the two refrigerant pipes (205). Refrigerant is added to the refrigerant box (206) for condensation. The built-in pump in the refrigerant box (206) delivers the refrigerant from the refrigerant pipe (205) on one side, and it passes through each annular delivery pipe (204) to absorb heat from the heat-conducting plate (200). Finally, it returns to the interior of the refrigerant box (206) from the refrigerant pipe (205) on the other side for circulation. The lamp cover (100) is fixedly connected to the bottom of the heat-conducting plate (200) with a mounting bracket (107). The refrigerant box (206) is detachably connected to the upper end of the mounting bracket (107).

4. The heat dissipation structure for new energy vehicle headlights according to claim 3, characterized in that, Multiple heat dissipation grooves (201) are provided on the heat conduction plate (200), and the heat dissipation grooves (201) increase the contact area between the heat conduction plate (200) and the air.

5. The heat dissipation structure for new energy vehicle headlights according to claim 4, characterized in that, Each annular delivery pipe (204) is fitted onto the outer wall of the heat-conducting plate (200) between every two heat dissipation slots (201).

6. The heat dissipation structure for new energy vehicle headlights according to claim 5, characterized in that, A circulation mechanism is installed at the upper end of the lampshade (100) between the refrigerant box (206) and the lampshade (100), which allows the air above the lampshade (100) to circulate with the air below it.

7. The heat dissipation structure for new energy vehicle headlights according to claim 6, characterized in that, The circulation mechanism includes a circulation fan (207).

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