A vehicle headlight heat dissipation device

Abstract

This invention discloses a vehicle headlight heat dissipation device, comprising a first fan, a heat dissipation mechanism, and a circulating cooling mechanism. The circulating cooling mechanism includes a storage tank, a pump, a centralized distribution pipe, a centralized return pipe, several condensation transfer pipes, and a cooling plate. The outlet of the storage tank is connected to the pump and the centralized distribution pipe sequentially via pipelines, and the inlet is connected to the centralized return pipe via pipelines. The two ends of the condensation transfer pipes are respectively connected to the centralized distribution pipe and the centralized return pipe. The first fan guides the heat generated by the headlight in the headlight mounting cavity to the heat dissipation fins of the heat dissipation mechanism for cooling. The pump draws out the cooling oil from the storage tank and circulates it through the centralized distribution pipe, several condensation transfer pipes, and the centralized return pipe for cooling. During the circulation process, the condensation transfer pipes absorb heat from the cooling plate to improve the heat dissipation efficiency of the cooling plate. At the same time, the cooling plate cools the cooling oil in the storage tank, thereby quickly and efficiently dissipating the heat from the headlight mounting cavity.

Description

Technical Field

[0001] This invention relates to the field of heat dissipation technology, and more particularly to a heat dissipation device for vehicle lights. Background Technology

[0002] Automotive lights typically use LEDs as the light source. LEDs have advantages such as small size, long lifespan, high luminous efficiency, low power consumption, and resistance to vibration. However, due to size limitations, heat dissipation becomes the main factor affecting their lifespan, especially since high-power LEDs generate even more heat.

[0003] Patent application number 201922347992.6 discloses a heat dissipation vehicle light, specifically disclosing that a fan is installed at the bottom of the LED light housing cavity and a heat dissipation aluminum block is installed on the side wall of the LED light housing cavity. The heat dissipation aluminum block dissipates heat from the housing cavity, but the heat dissipation effect is poor. Summary of the Invention

[0004] The purpose of this invention is to overcome the above-mentioned technical deficiencies and propose a vehicle lamp heat dissipation device to solve the technical problem that the heat dissipation effect of heat dissipation vehicle lamps is poor when the heat dissipation aluminum block is used to dissipate heat from the accommodating cavity.

[0005] To achieve the above-mentioned technical objectives, the present invention provides a vehicle headlight heat dissipation device, comprising:

[0006] The first fan has its air inlet facing the side of the headlight mounting cavity.

[0007] The radiator includes a plurality of heat dissipation fins, which are fixedly disposed on one side of the air outlet of the first fan;

[0008] The circulating cooling mechanism includes a storage tank, a pump, a central distribution pipe, a central return pipe, several condensation transfer pipes, and a cooling plate. The storage tank stores the cooling medium, and its outlet is connected to the pump and the central distribution pipe in sequence via pipes. Its inlet is connected to the central return pipe via pipes. The condensation transfer pipes are fixed between the central distribution pipes and the central return pipes, and both ends of the condensation transfer pipes are connected to the central distribution pipes and the central return pipes, respectively. The condensation transfer pipes pass through the middle of the heat dissipation fins or are arranged close to the outer surface of the heat dissipation fins. The cooling plate is arranged close to the outer wall of the storage tank.

[0009] Furthermore, the circulating cooling mechanism also includes a cooling plate, which is fixedly disposed between the heat dissipation fins and the condensation transfer pipe, and the cooling plate is disposed in close contact with the heat dissipation fins, and the condensation transfer pipe passes through the cooling plate.

[0010] Furthermore, the circulating cooling mechanism also includes a second fan, the air inlet of which faces one side of the condensation transfer pipe.

[0011] Furthermore, the vehicle headlight cooling device also includes a mounting bracket, on which the first fan, the radiator, the pump, the central distribution pipe, the central return pipe, the cooling plate, and the second fan are all fixedly mounted, and the mounting bracket is fixed to the vehicle body.

[0012] Furthermore, the vehicle headlight cooling device also includes a connecting mechanism for detachably connecting the mounting bracket to the vehicle body, the connecting mechanism comprising:

[0013] The male connector includes a fixed rod, a locking block, and an elastic element. One end of the fixed rod is fixedly connected to the fixed frame. The locking block is slidably disposed at the other end of the fixed rod, and the sliding direction of the locking block is not parallel to the axial direction of the fixed rod. The elastic element is fixedly connected between the fixed rod and the locking block, and the axial direction of the elastic element is parallel to or coincides with the sliding direction of the locking block.

[0014] The female connector includes a fixing sleeve, one end of which is fixedly connected to the vehicle body, and the side wall of the fixing sleeve is provided with a lock hole that matches the lock block.

[0015] Furthermore, the end of the fixing rod away from the fixing frame is provided with a locking groove that matches the locking block. The locking block is slidably disposed in the locking groove, and the two ends of the elastic member are respectively fixedly connected to the inner wall of the locking groove and the locking block.

[0016] Furthermore, at least two locking grooves are evenly provided circumferentially at the end of the fixing rod away from the fixing frame, and a locking block is slidably disposed in each locking groove.

[0017] Furthermore, the connecting mechanism also includes a quick-release assembly for quickly separating the interconnected male connector and the female connector. The quick-release assembly includes a slide block and an unlocking slider. The slide block is fixedly disposed on the outer wall of the fixed sleeve and corresponds to the position of the lock hole. The unlocking slider is slidably disposed on the slide block, and the shape of the unlocking slider matches the shape of the lock groove.

[0018] Furthermore, the female connector also includes a positioning plate, which is fixed to the end of the fixing sleeve away from the fixing rod. The positioning plate has several mounting holes for inserting screws to fix it inside the mounting cavity of the vehicle light.

[0019] Furthermore, the vehicle headlight cooling device also includes a shock-absorbing mechanism disposed between the fixed frame and the connecting mechanism. The shock-absorbing mechanism includes a sliding sleeve and a shock-absorbing spring. The sliding sleeve is fixedly disposed on the fixed frame, and the fixed rod is movably sleeved inside the sliding sleeve. One end of the shock-absorbing spring is fixedly connected to the inner wall of the sliding sleeve, and the other end is fixedly connected to the end of the fixed rod.

[0020] Compared with the prior art, the beneficial effects of the present invention include:

[0021] In the headlight cooling device, the first fan can guide the heat generated by the headlight in the headlight mounting cavity to the heat dissipation fins of the cooling mechanism for heat dissipation. The pump can extract the cooling oil in the storage tank and circulate it through the pipeline sequentially through the central distribution pipe, several condensation transfer pipes and the central return pipe for cooling. During the circulation process, the condensation transfer pipe can absorb the heat of the cooling plate to improve the heat dissipation efficiency of the cooling plate. At the same time, the cooling plate can cool the cooling oil in the storage tank, thereby quickly and efficiently dissipating the heat in the headlight mounting cavity. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of a vehicle headlight heat dissipation device provided by the present invention;

[0023] Figure 2 This is a schematic diagram of the structure of a vehicle headlight heat dissipation device provided by the present invention after removing the fixing bracket;

[0024] Figure 3 This is a schematic diagram of the male connector in this embodiment;

[0025] Figure 4 This is a schematic diagram of the female connector in this embodiment. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0027] This invention provides a vehicle headlight heat dissipation device, the structure of which is as follows: Figure 1As shown, the device includes a first fan 1, a radiator 2, and a circulating cooling mechanism 3. The air inlet of the first fan 1 faces the side of the headlight mounting cavity. The radiator 2 includes several heat dissipation fins, which are fixedly disposed on the side of the air outlet of the first fan 1. The circulating cooling mechanism 3 includes a storage tank 31, a pump 32, a central distribution pipe 33, a central return pipe 34, several condensation transfer pipes 35, and a cooling plate 36. The storage tank 31 is used to store the cooling medium, and its outlet is connected to the pump 32 and the central distribution pipe 33 in sequence through a pipe. Its inlet is connected to the central return pipe 34 through a pipe. The condensation transfer pipes 35 are fixed between the central distribution pipes 33 and the central return pipes 34, and both ends of the condensation transfer pipes 35 are respectively connected to the central distribution pipes 33 and the central return pipes 34. The condensation transfer pipes 35 pass through the middle of the heat dissipation fins or are disposed close to the outer surface of the heat dissipation fins. The cooling plate 36 is disposed close to the outer wall of the storage tank 31.

[0028] In the headlight cooling device, the first fan 1 can guide the heat generated by the headlight in the headlight mounting cavity to the heat dissipation fins of the radiator 2 for heat dissipation. The pump 32 can extract the cooling oil in the storage tank 31 and circulate it through the pipeline sequentially through the central distribution pipe 33, several condensation transfer pipes 35 and the central return pipe 34 for cooling. During the circulation process, the condensation transfer pipes 35 can absorb the heat of the cooling plate 37 to improve the heat dissipation efficiency of the cooling plate 37. At the same time, the cooling plate 36 can cool the cooling oil in the storage tank 31, thereby quickly and efficiently dissipating the heat in the headlight mounting cavity.

[0029] In a specific embodiment, the cooling medium in the storage tank 31 is cooling oil, and the cooling plate 36 is a semiconductor cooling plate. The semiconductor cooling plate utilizes the Peltier effect of semiconductor materials. When direct current passes through a thermocouple composed of two different semiconductor materials connected in series, heat can be absorbed and released at the two ends of the thermocouple, respectively, thereby achieving the purpose of cooling.

[0030] Please refer to Figure 2 In a preferred embodiment, to further improve the heat dissipation rate, the circulating cooling mechanism 3 further includes a cooling plate 37, which is fixedly disposed between the heat dissipation fins and the condensation transfer pipe 35, and the cooling plate 37 is disposed close to the heat dissipation fins, and the condensation transfer pipe 35 passes through the cooling plate 37.

[0031] It is understood that the condensation transfer pipe 35 passes through the cooling plate 37, enabling the condensation transfer pipe 35 to absorb heat from the cooling plate 37 to the maximum extent, thereby improving the cooling efficiency of the cooling plate 37.

[0032] In a preferred embodiment, the circulating cooling mechanism 3 further includes a second fan 38, the air inlet of which faces the side of the condensation transfer pipe 35.

[0033] Understandably, the second fan 38 can further dissipate the heat from the cooling plate 37 to the outside, thereby further improving the heat dissipation efficiency.

[0034] Please continue to refer to Figure 1 In a preferred embodiment, the vehicle headlight cooling device further includes a mounting bracket 4, on which the first fan 1, the radiator 2, the pump 32, the central distribution pipe 33, the central return pipe 34, the cooling plate 37, and the second fan 38 are all fixedly mounted. The mounting bracket 4 is fixed to the vehicle body.

[0035] In a preferred embodiment, to facilitate the installation of the headlight heat dissipation device on the vehicle body, the headlight heat dissipation device further includes a connecting mechanism 5 for detachably connecting the mounting bracket 4 to the vehicle body. The connecting mechanism 5 includes a male connector 51 and a female connector 52. Please refer to [reference needed]. Figure 3 and Figure 4 The male connector 51 includes a fixing rod 511, a locking block 512, and an elastic element 513. One end of the fixing rod 511 is fixedly connected to the fixing frame 4. The locking block 512 is slidably disposed at the other end of the fixing rod 511, and the sliding direction of the locking block 512 is not parallel to the axial direction of the fixing rod 511. The elastic element 513 is fixedly connected between the fixing rod 511 and the locking block 512, and the axial direction of the elastic element 513 is parallel to or coincides with the sliding direction of the locking block 512. The female connector 52 includes a fixing sleeve 521. One end of the fixing sleeve 521 is fixedly connected to the vehicle body, and the side wall of the fixing sleeve 521 has a locking hole 5210 that matches the locking block 512.

[0036] It is understood that when the male connector 51 and the female connector 52 are connected, the end of the fixing rod 511 with the locking block 512 is inserted into the fixing sleeve 521. At this time, the locking block 512 is restricted by the inner wall of the fixing sleeve 521 and compresses the elastic member 513. When the locking block 512 on the fixing rod 511 is inserted into the position of the lock hole 5210, the elastic member 513 loses pressure, elongates and pushes the locking block 512 into the lock hole 5210, so as to realize the docking and locking of the male connector 51 and the female connector 52, thereby fixing the vehicle headlight heat dissipation device to the vehicle body.

[0037] Furthermore, to prevent the locking block 512 from being compressed by the inner wall of the fixing sleeve 521 when the fixing rod 511 is inserted into the fixing sleeve 521, causing the elastic element 513 to bend and the locking block 512 to deviate, thus preventing the locking block 512 from being accurately aligned with the lock hole 5210, please continue to refer to... Figure 3 The fixed rod 511 has a locking groove 5120 at one end away from the fixed frame 4, which matches the locking block 512. The locking block 512 is slidably disposed in the locking groove 5120. The two ends of the elastic member 513 are fixedly connected to the inner wall of the locking groove 5120 and the locking block 512, respectively.

[0038] It is understood that by opening the locking groove 5120 at one end of the fixing rod 511, the locking block 512 can only slide within the locking groove 5120, so that when the male connector 51 and the female connector 52 are connected, the locking block 512 can be quickly aligned with the lock hole 5210.

[0039] In a preferred embodiment, in order to improve the firmness of the connection between the male connector 51 and the female connector 52, at least two locking grooves 5120 are evenly provided circumferentially at the end of the fixing rod 511 away from the fixing frame 4, and a locking block 512 is slidably disposed in each locking groove 5120.

[0040] Please continue to refer to Figure 4 Furthermore, in order to quickly detach the male connector 51 and the female connector 52, the connecting mechanism 5 also includes a quick-release assembly 53 for quickly separating the interconnected male connector 51 and the female connector 52. The quick-release assembly 53 includes a slide block 531 and an unlocking slider 532. The slide block 531 is fixedly disposed on the outer wall of the fixed sleeve 521 and corresponds to the position of the lock hole 5210. The unlocking slider 532 is slidably disposed on the slide block 531, and the shape of the unlocking slider 532 matches the shape of the lock groove 5120.

[0041] Understandably, when it is necessary to separate the male connector 51 and the female connector 52, pushing the unlocking slider 532 to move it on the slide block 531 toward the lock hole 5210 can push the locking block 512 out from the lock hole 5210 toward the inside of the fixing sleeve 521, thereby unlocking the fixing rod 511 from the fixing sleeve 521, so as to separate the male connector 51 and the female connector 52.

[0042] In a preferred embodiment, the female connector 52 further includes a positioning plate 522, which is fixed to the end of the fixing sleeve 521 away from the fixing rod 511. The positioning plate 522 has a plurality of mounting holes for inserting screws to fix it inside the mounting cavity of the vehicle light.

[0043] Please continue to refer to Figure 3 In a preferred embodiment, the vehicle headlight cooling device further includes a shock-absorbing mechanism 6 disposed between the fixing frame 4 and the connecting mechanism 5. The shock-absorbing mechanism 6 includes a sliding sleeve 61 and a shock-absorbing spring 62. The sliding sleeve 61 is fixedly disposed on the fixing frame 4, and the fixing rod 511 is movably sleeved inside the sliding sleeve 61. One end of the shock-absorbing spring 62 is fixedly connected to the inner wall of the sliding sleeve 61, and the other end is fixedly connected to the end of the fixing rod 511.

[0044] Understandably, when the vehicle shakes, the sliding sleeve 61 will move relative to the fixed rod 511. The shock-absorbing spring 62 can convert the axial vibration of the sliding sleeve 61 into elastic potential energy, thereby reducing the vibration amplitude of the sliding sleeve 61 and playing a role in shock absorption and protection of the vehicle headlight heat dissipation device.

[0045] To facilitate understanding of the present invention, the following is combined with... Figures 1-4 The working principle of this solution will be explained in detail:

[0046] When installing the vehicle headlight heat dissipation device, the positioning plate 522 is fixed to the inside of the headlight mounting cavity with screws. Then, the end of the fixing rod 511 with the locking block 512 is inserted into the fixing sleeve 521 until the locking block 512 is engaged in the corresponding locking hole 5210 on the side wall of the fixing sleeve 521, so as to connect the male connector 51 and the female connector 52, thereby fixing the vehicle headlight heat dissipation device to the vehicle body.

[0047] When the vehicle headlight cooling device is working, the first fan 1, the pump 32, the cooling plate 36, and the second fan 38 are activated. On the one hand, the first fan 1 can guide the heat generated by the vehicle headlight in the headlight mounting cavity to the heat dissipation fins of the radiator 2 and the cooling plate 37 for heat dissipation. On the other hand, the pump 32 can draw out the cooling oil in the storage tank 31 and circulate it through the pipeline sequentially through the central distribution pipe 33, several condensation transfer pipes 35, and the central return pipe 34 for cooling. During the circulation process, the condensation transfer pipes 35 can absorb the heat of the cooling plate 37 to improve the heat dissipation efficiency of the cooling plate 37. At the same time, the cooling plate 36 can cool the cooling oil in the storage tank 31, which greatly improves the heat dissipation efficiency.

[0048] The vehicle headlight heat dissipation device provided by the present invention has the following beneficial effects:

[0049] (1) The first fan 1 can guide the heat generated by the vehicle lamp in the lamp mounting cavity to the heat dissipation fins of the radiator 2 for heat dissipation. The pump 32 can extract the cooling oil in the storage tank 31 and circulate it through the pipeline via the central distribution pipe 33, several condensation transfer pipes 35 and the central return pipe 34 for cooling. During the circulation process, the condensation transfer pipe 35 can absorb the heat of the cooling plate 37 to improve the heat dissipation efficiency of the cooling plate 37. At the same time, the cooling plate 36 can cool the cooling oil in the storage tank 31, thereby quickly and efficiently dissipating the heat in the lamp mounting cavity.

[0050] (2) When the male connector 51 and the female connector 52 are connected, the end of the fixing rod 511 with the locking block 512 is inserted into the fixing sleeve 521. At this time, the locking block 512 is restricted by the inner wall of the fixing sleeve 521 and compresses the elastic member 513. When the locking block 512 on the fixing rod 511 is inserted into the position of the lock hole 5210, the elastic member 513 loses pressure and elongates and pushes the locking block 512 into the lock hole 5210 to realize the docking and locking of the male connector 51 and the female connector 52, thereby fixing the vehicle light heat dissipation device on the vehicle body.

[0051] (3) When it is necessary to separate the male connector 51 and the female connector 52, push the unlocking slider 532 to move it on the slide block 531 toward the lock hole 5210, so that the locking block 512 can be pushed out from the lock hole 5210 toward the inside of the fixing sleeve 521, thereby unlocking the fixing rod 511 from the fixing sleeve 521, so as to realize the separation of the male connector 51 and the female connector 52.

[0052] The specific embodiments of the present invention described above do not constitute a limitation on the scope of protection of the present invention. Any other corresponding changes and modifications made in accordance with the technical concept of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. A heat dissipating device for a vehicle lamp, characterized by comprising: The application relates to a circulating cooling mechanism for a vehicle lamp. The circulating cooling mechanism comprises a first fan, a radiator, a circulating cooling mechanism, a fixing frame and a connecting mechanism. The first fan has an air inlet facing one side of a lamp mounting cavity. The radiator comprises a plurality of heat dissipation fins fixedly arranged on one side of an air outlet of the first fan. The circulating cooling mechanism comprises a storage tank, a pump, a concentrated flow distribution pipe, a concentrated return pipe, a plurality of condensation transmission pipes and a cooling plate. The storage tank is used for storing cooling medium, and an outlet of the storage tank is connected with the pump and the concentrated flow distribution pipe through pipelines in sequence. An inlet of the storage tank is connected with the concentrated return pipe through a pipeline. The condensation transmission pipes are fixedly arranged between the concentrated flow distribution pipe and the concentrated return pipe, and two ends of the condensation transmission pipes are communicated with the concentrated flow distribution pipe and the concentrated return pipe respectively. The condensation transmission pipes pass through the middle of the heat dissipation fins or are arranged in close contact with the outer surfaces of the heat dissipation fins.

2. The heat dissipating device for vehicle lamp according to claim 1, wherein The cooling plate is arranged in close contact with the outer wall of the storage tank.

3. The heat dissipating device for vehicle lamp according to claim 2, wherein The first fan, the radiator, the pump, the concentrated flow distribution pipe, the concentrated return pipe and the cooling plate are fixedly arranged on the fixing frame.

4. The heat dissipating device for vehicle lamp according to claim 1, wherein The fixing frame is fixed on a vehicle body.

5. The heat dissipating device for vehicle lamp according to claim 4, wherein The connecting mechanism is used for detachably connecting the fixing frame with the vehicle body.

6. The heat dissipating device for vehicle lamp according to claim 4, wherein The connecting mechanism comprises a male connector and a female connector.

7. The heat dissipating device for vehicle lamp according to claim 1, wherein The male connector comprises a fixing rod, a locking block and an elastic member. One end of the fixing rod is fixedly connected with the fixing frame. The locking block is slidingly arranged on the other end of the fixing rod. The sliding direction of the locking block is non-parallel to the axial direction of the fixing rod. The elastic member is fixedly connected between the fixing rod and the locking block. The axial direction of the elastic member is parallel to or coincides with the sliding direction of the locking block. The female connector comprises a fixing sleeve. One end of the fixing sleeve is fixedly connected with the vehicle body. A locking hole matched with the locking block is formed in the side wall of the fixing sleeve. The circulating cooling mechanism further comprises a cooling plate fixedly arranged between the heat dissipation fins and the condensation transmission pipes. The cooling plate is arranged in close contact with the heat dissipation fins. The condensation transmission pipes pass through the cooling plate. The circulating cooling mechanism further comprises a second fan fixedly arranged on the fixing frame. An air inlet of the second fan faces one side of the condensation transmission pipes. The end of the fixing rod away from the fixing frame is provided with a locking groove matched with the locking block. The locking block is slidingly arranged in the locking groove. The end of the fixing rod away from the fixing frame is uniformly provided with at least two locking grooves in the circumferential direction. Each locking groove is slidingly arranged with the locking block. The connecting mechanism further comprises a quick release assembly. The quick release assembly is used for quickly separating the male connector and the female connector connected with each other. The quick release assembly comprises a sliding seat and an unlocking sliding block. The sliding seat is fixedly arranged on the outer wall of the fixing sleeve and corresponds to the position of the locking hole. The unlocking sliding block is slidingly arranged on the sliding seat. The shape of the unlocking sliding block is matched with the shape of the locking groove. The female connector further comprises a positioning plate. The positioning plate is fixedly arranged on the end of the fixing sleeve away from the fixing rod. A plurality of mounting holes are formed in the positioning plate. Screws are arranged in the mounting holes to be fixed in the mounting cavity of the vehicle lamp.

8. The heat dissipating device for vehicle lamp according to claim 1, wherein The damping mechanism is arranged between the fixing frame and the connecting mechanism, and comprises a sliding sleeve and a damping spring. The sliding sleeve is fixedly arranged on the fixing frame, the fixing rod is movably sleeved in the sliding sleeve, one end of the damping spring is fixedly connected with the inner wall of the sliding sleeve, and the other end of the damping spring is fixedly connected with the end of the fixing rod.

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