Headlamp for electric vehicle
By using a combined structure of a thermal frame, heat dissipation fin, thermal insulation sleeve and negative pressure chamber in the headlights for electric vehicles, the problem of heat dissipation into the shell when the headlights are working is solved, achieving more efficient heat dissipation and delaying aging of internal components of electric vehicles.
Patent Information
- Application Number
- CN202421552873.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-03
- Publication Date
- 2025-03-21
- Estimated Expiration
- 2034-07-03
AI Technical Summary
The heat generated by existing electric vehicle headlights during operation will be emitted into the interior of the housing, causing the plastic housing and cable to age faster.
A headlight for electric vehicles is designed, using a combined structure of a thermal conductivity frame, heat dissipation fins, thermal insulation sleeve and negative pressure chamber. The thermal conductor absorbs heat from the headlight body, the evaporation of antifreeze in the negative pressure chamber accelerates heat transfer, the heat dissipation fins collided with the air to quickly dissipate heat, and the insulation sleeve prevents heat from being dissipated into the electric vehicle.
Through effective heat conduction and dispersion mechanism, the accumulation of heat in the electric vehicle is reduced, the aging of plastic parts and cables is delayed, and the cooling efficiency of headlights is improved.
Smart Images
Figure CN222651134U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of electric vehicle accessories, in particular to a headlight for an electric vehicle. Background Art
[0002] Two-wheeled electric vehicles are mainly divided into electric bicycles, electric mopeds and electric motorcycles. In order to facilitate the driving of two-wheeled electric vehicles at night, headlights will be installed in the front of the two-wheeled electric vehicles, which integrate low beam and high beam. Some will also integrate turn signals into the headlight module, which can provide lighting for the two-wheeled electric vehicles to ensure safety at night.
[0003] Existing electric vehicle headlights are usually installed inside the outer shell of the electric vehicle, with only the lampshade exposed, or the lampshade is flush with the outer shell of the electric vehicle. This causes the heat generated by the electric vehicle headlights when working to dissipate into the inside of the outer shell. The outer shell in front of a two-wheeled electric vehicle is usually a plastic part, and cables such as the ignition control line, headlight control line, turn signal control line, and power switch control line are distributed inside. High temperature can easily accelerate the aging of these components. Utility Model Content
[0004] Based on this, the purpose of the present invention is to provide a headlight for an electric vehicle to solve the technical problems mentioned in the above background technology.
[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solution: a headlight for an electric vehicle, comprising a panel and a headlight body, a heat-conducting frame fixed to one side of the headlight body, and a heat-dissipating fin connected to one side of the heat-conducting frame, an insulation sleeve connected to the top of the heat-conducting frame, and a negative pressure chamber opened inside the heat-conducting frame.
[0006] By adopting the above technical solution, when the headlight body is working, the heat generated by the headlight body is absorbed by the heat conductive frame. After the heat conductive frame absorbs the heat, the antifreeze in the lower part of the negative pressure chamber evaporates, and the negative pressure chamber is under negative pressure, which reduces the boiling point of the antifreeze to accelerate the evaporation rate of the antifreeze. After the antifreeze evaporates, it rises and contacts the cooling fins, thereby transferring the heat to the cooling fins. Then, the antifreeze temperature decreases and condenses back into liquid state and flows downward to absorb the heat of the headlight body again. At this point, the reciprocating cycle improves the heat conduction effect. At the same time, the heat insulating sleeve is used to prevent the heat in the heat conductive frame from being dissipated into the electric vehicle. Then, when the electric vehicle is driving, the cooling fins collide with the air, so that the cooling fins can quickly dissipate the heat to the outside.
[0007] Furthermore, antifreeze liquid is provided inside the negative pressure chamber.
[0008] By adopting the above technical solution, the antifreeze in the lower part of the negative pressure chamber evaporates after the heat conducting frame absorbs heat, and the negative pressure chamber is under negative pressure, which reduces the boiling point of the antifreeze to accelerate the evaporation rate of the antifreeze. After evaporation, the antifreeze rises and contacts the cooling fins, thereby transferring heat to the cooling fins. After that, the antifreeze temperature decreases, condenses back into liquid state, flows downward, and absorbs the heat of the headlight body again. The reciprocating cycle improves the heat conduction effect.
[0009] Furthermore, the heat sink fins are made of aluminum material, and the heat conducting frame is made of copper material.
[0010] By adopting the above technical solution, the heat generated when the headlight body is working is conducted to the heat dissipation fins through the heat conduction frame, and then the heat dissipation fins collide with the air when the electric vehicle is running, so that the heat dissipation fins can quickly dissipate the heat to the outside.
[0011] Furthermore, the middle of the top of the heat conducting frame is sloped.
[0012] By adopting the above technical solution, the middle of the top of the heat rack is sloped to facilitate the rise of the evaporated antifreeze vapor and the separation of the antifreeze, and to facilitate the reflux of the condensed antifreeze.
[0013] Furthermore, the heat dissipation fins, the heat-conducting frame, the thermal insulation sleeve and the negative pressure chamber are provided in plurality, and the plurality of heat dissipation fins, the heat-conducting frame, the thermal insulation sleeve and the negative pressure chamber are distributed at equal distances.
[0014] By adopting the above technical solution, the number of heat dissipation fins, heat conduction frames, insulation sleeves and negative pressure chambers is increased, so that the heat dissipation area is increased, thereby accelerating the heat dissipation efficiency.
[0015] Furthermore, the headlight body is installed in the middle of the outer surface of the panel, and the low beam and the high beam are respectively installed inside the headlight body, and the outer surface of the headlight body is connected to a lampshade.
[0016] By adopting the above technical solution, the low beam and high beam can provide lighting for the electric vehicle when it is driving at night, thereby improving the safety of night driving. At the same time, the low beam and high beam can be protected by the lampshade.
[0017] Furthermore, four fastening bolts are respectively installed on both sides of the outer surface of the panel, and the four fastening bolts are distributed in a rectangular array.
[0018] By adopting the above technical solution, the headlight body and the panel are integrated into one, which is convenient for supporting the heat dissipation structure. After that, the staff will connect various signal lines and power lines, and then install the panel on the electric vehicle by tightening the bolts.
[0019] Furthermore, the heat dissipation fins, the heat-conducting frame, the thermal insulation sleeve and the negative pressure chamber are provided in two groups, and the two groups of heat dissipation fins, the heat-conducting frame, the thermal insulation sleeve and the negative pressure chamber are arranged in a mirror image.
[0020] By adopting the above technical solution, multiple heat sink fins, heat conduction frames, insulation sleeves and negative pressure chambers are divided into two groups of left and right mirror images, so that the structure is symmetrical and more beautiful. At the same time, the increase in the number of heat dissipation structures increases the heat dissipation area, thereby accelerating the heat dissipation efficiency.
[0021] In summary, the utility model mainly has the following beneficial effects:
[0022] 1. The utility model integrates the headlight body and the panel into one by setting the panel, the heat dissipation fins, the heat conduction frame and the insulation sleeve, so as to facilitate the support of the heat dissipation structure. When the headlight body is working, the heat generated by the headlight body is transferred to the heat dissipation fins through the heat conduction frame, and the heat dissipation in the heat conduction frame is prevented from being dissipated into the electric vehicle through the insulation sleeve. Then, when the electric vehicle is running, the heat dissipation fins collide with the air, so that the heat dissipation fins can quickly dissipate the heat to the outside; the heat is transferred to the outside of the vehicle, so as to prevent the heat from accumulating in the vehicle and accelerating the aging of plastic parts and cables;
[0023] 2. The utility model provides a heat-conducting frame, a negative pressure chamber and antifreeze. After the heat-conducting frame absorbs heat, the antifreeze in the lower part of the negative pressure chamber evaporates, and the negative pressure chamber is under negative pressure, which reduces the boiling point of the antifreeze to accelerate the evaporation rate of the antifreeze. After the antifreeze evaporates, it rises and contacts the cooling fins, thereby transferring heat to the cooling fins. After that, the antifreeze temperature decreases and condenses back into liquid state and flows downward to absorb the heat of the headlamp body again. The reciprocating cycle improves the heat conduction effect; the heat conduction efficiency is accelerated to facilitate rapid heat dissipation. BRIEF DESCRIPTION OF THE DRAWINGS
[0024] Figure 1 It is a schematic diagram of the structure of the utility model;
[0025] Figure 2 It is a schematic diagram of the top-sectional structure of the utility model;
[0026] Figure 3 This is a schematic diagram of the heat conduction frame structure of the utility model;
[0027] Figure 4 It is a schematic diagram of the explosion structure of the heat conducting frame of the utility model.
[0028] In the figure: 1. panel; 2. headlight body; 3. low beam; 4. high beam; 5. lampshade; 6. fastening bolts; 7. cooling fins; 8. heat conduction frame; 9. insulation cover; 10. negative pressure chamber. DETAILED DESCRIPTION
[0029] 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. The embodiments described below with reference to the drawings are exemplary and are only used to explain the utility model, and cannot be understood as limiting the utility model.
[0030] The following describes an embodiment of the utility model based on its overall structure.
[0031] Embodiment 1:
[0032] A headlight for an electric vehicle, such as Figure 1-Figure 4 As shown, it includes a panel 1 and a headlight body 2. A heat-conducting frame 8 is fixed on one side of the headlight body 2. The heat-conducting frame 8 is made of copper material. The middle of the top of the heat-conducting frame 8 is sloped. The heat generated by the headlight body 2 when working is conducted to the heat dissipation fins 7 through the heat-conducting frame 8; one side of the heat-conducting frame 8 is connected to the heat dissipation fins 7. The heat dissipation fins 7 are made of aluminum material. When the electric vehicle is running, the heat dissipation fins 7 collide with the air, so that the heat dissipation fins 7 can quickly dissipate the heat to the outside; the top of the heat-conducting frame 8 A thermal insulation sleeve 9 is connected to prevent the heat in the heat-conducting frame 8 from being dissipated into the electric vehicle; a negative pressure chamber 10 is opened inside the heat-conducting frame 8, and antifreeze is arranged inside the negative pressure chamber 10 to accelerate heat transfer through the phase change of the antifreeze; multiple heat dissipating fins 7, heat-conducting frames 8, thermal insulation sleeves 9 and negative pressure chambers 10 are arranged, and multiple heat dissipating fins 7, heat-conducting frames 8, thermal insulation sleeves 9 and negative pressure chambers 10 are equidistantly distributed, and the heat dissipation area is increased by increasing the number, and the heat dissipation efficiency is increased when the heat dissipation area is increased.
[0033] See also Figure 1 and Figure 2 In the above embodiment, the headlight body 2 is installed in the middle of the outer surface of the panel 1, and the low beam 3 and the high beam 4 are installed inside the headlight body 2, so as to provide lighting when the electric vehicle is driving at night; the outer surface of the headlight body 2 is connected with a lampshade 5 to protect the low beam 3 and the high beam 4; four fastening bolts 6 are installed on both sides of the outer surface of the panel 1, and the four fastening bolts 6 are distributed in a rectangular array. The headlight body 2 and the panel 1 are integrated into one, which is convenient for supporting the heat dissipation structure. After that, the staff connects various signal lines and power lines, and then installs the panel 1 on the electric vehicle through the fastening bolts 6.
[0034] Embodiment 2:
[0035] On the basis of the above-mentioned embodiment 1, in order to make the structure bilaterally symmetrical and increase the aesthetics, the following settings are now adopted.
[0036] See also Figure 1In the above embodiment, two groups of heat sink fins 7, heat conducting frames 8, thermal insulation sleeves 9 and negative pressure chambers 10 are provided, and the two groups of heat sink fins 7, heat conducting frames 8, thermal insulation sleeves 9 and negative pressure chambers 10 are mirror-imaged, so that multiple heat sink fins 7, heat conducting frames 8, thermal insulation sleeves 9 and negative pressure chambers 10 are mirror-imaged left and right, which is more beautiful and increases the heat dissipation area to accelerate the heat dissipation efficiency.
[0037] The implementation principle of the utility model is as follows: first, the headlight body 2 and the panel 1 are integrated into one body, which is convenient for supporting the heat dissipation structure. Then the staff connects various signal lines and power lines, and then installs the panel 1 on the electric vehicle by fastening the bolts 6;
[0038] When the headlight body 2 is working, the heat generated by the headlight body 2 is absorbed by the heat conducting frame 8. After the heat conducting frame 8 absorbs the heat, the antifreeze in the lower part of the negative pressure chamber 10 evaporates, and the negative pressure chamber 10 is under negative pressure, which reduces the boiling point of the antifreeze to speed up the evaporation of the antifreeze. After the antifreeze evaporates, it rises and contacts the heat dissipation fins 7, thereby transferring the heat to the heat dissipation fins 7. Then, the temperature of the antifreeze decreases and condenses back into liquid state and flows downward to absorb the heat of the headlight body 2 again. At this point, the reciprocating cycle improves the heat conduction effect. At the same time, the heat insulation sleeve 9 is used to prevent the heat in the heat conducting frame 8 from being dissipated into the electric vehicle. Then, when the electric vehicle is driving, the heat dissipation fins 7 collide with the air, so that the heat dissipation fins 7 can quickly dissipate the heat to the outside.
[0039] Although an embodiment of the utility model has been shown and described, this specific embodiment is only an explanation of the utility model and is not a limitation of the utility model. The specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions and variations to the embodiments without creative contribution as needed without departing from the principles and purpose of the utility model. However, as long as they are within the scope of the claims of the utility model, they are protected by patent law.
Claims
1. A headlight for an electric vehicle, comprising a panel (1) and a headlight body (2), characterized in that: A heat-conducting frame (8) is fixed on one side of the headlight body (2), and a heat-dissipating fin (7) is connected to one side of the heat-conducting frame (8). A heat-insulating sleeve (9) is connected to the top of the heat-conducting frame (8), and a negative pressure chamber (10) is provided inside the heat-conducting frame (8).
2. The electric vehicle headlight according to claim 1, characterized in that: Antifreeze liquid is arranged inside the negative pressure chamber (10).
3. The electric vehicle headlight according to claim 1, characterized in that: The heat dissipation fins (7) are made of aluminum material, and the heat conducting frame (8) is made of copper material.
4. The electric vehicle headlight according to claim 3, characterized in that: The middle of the top of the heat conducting frame (8) is sloped.
5. The electric vehicle headlight according to claim 4, characterized in that: The heat dissipation fins (7), the heat conduction frame (8), the heat insulation sleeve (9) and the negative pressure chamber (10) are provided in plurality, and the plurality of heat dissipation fins (7), the heat conduction frame (8), the heat insulation sleeve (9) and the negative pressure chamber (10) are distributed at equal distances.
6. The electric vehicle headlight according to claim 1, characterized in that: The headlight body (2) is installed in the middle of the outer surface of the panel (1), and a low beam light (3) and a high beam light (4) are respectively installed inside the headlight body (2), and a lampshade (5) is connected to the outer surface of the headlight body (2).
7. The electric vehicle headlight according to claim 6, characterized in that: Four fastening bolts (6) are respectively installed on both sides of the outer surface of the panel (1), and the four fastening bolts (6) are distributed in a rectangular array.
8. The electric vehicle headlight according to claim 5, characterized in that: The heat dissipation fins (7), the heat conduction frame (8), the heat insulation sleeve (9) and the negative pressure chamber (10) are provided in two groups, and the two groups of heat dissipation fins (7), the heat conduction frame (8), the heat insulation sleeve (9) and the negative pressure chamber (10) are arranged in a mirror image.