Shell assembly for automobile lamp, automobile lamp and electric automobile
By setting an infrared light-transmitting area that can penetrate infrared light on the lamp shell of the headlight and setting the lamp shell on one side of the low-temperature area, the problem of low heat dissipation efficiency of the headlight is solved and more efficient heat dissipation is achieved.
Patent Information
- Application Number
- CN202422086705.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-27
- Publication Date
- 2025-05-30
- Estimated Expiration
- 2034-08-27
AI Technical Summary
The thermal conduction and thermal radiation capacity of existing car lamp materials is poor, resulting in low heat dissipation efficiency of car lamps.
An infrared light-transmitting area that can penetrate infrared light is arranged on the lamp shell of the headlight, and the lamp shell is arranged on one side of the low-temperature area where the headlight is located, so that infrared light can penetrate to the low-temperature area and achieve heat radiation heat dissipation.
Through the design of infrared light transmission zone, the heat dissipation efficiency of the headlights is improved, effectively solving the problem of low heat dissipation efficiency of the headlights.
Smart Images
Figure CN222925360U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of vehicle lamps, and more specifically, to a housing assembly for a vehicle lamp, a vehicle lamp, and an electric vehicle. Background Art
[0002] The vehicle lamp is a seal, and usually relies on the lamp housing for heat conduction and heat convection. Generally, the lamp housing material of the vehicle lamp adopts polypropylene materials (PP), thermoplastic synthetic polymer resins (ABS), composite materials, modified materials, etc. However, due to the poor heat conduction and heat radiation capabilities of the above materials, the heat dissipation efficiency of the vehicle lamp is low.
[0003] Therefore, how to improve the heat dissipation efficiency of the vehicle lamp has become a technical problem that needs to be solved urgently by those skilled in the art. Summary of the Utility Model
[0004] In view of this, the purpose of the present application is to provide a housing assembly for a vehicle lamp to improve the heat dissipation efficiency of the vehicle lamp.
[0005] Another purpose of the present application is to provide a vehicle lamp having the above-mentioned housing assembly for a vehicle lamp.
[0006] Another purpose of the present application is to provide an electric vehicle having the above-mentioned vehicle lamp.
[0007] To achieve the above purpose, the present application provides the following technical solutions:
[0008] A housing assembly for a vehicle lamp, comprising:
[0009] A lamp cover;
[0010] A lamp housing, the lamp housing is connected to the lamp cover so that the lamp cover and the lamp housing enclose a closed chamber for installing a light source;
[0011] The lamp housing is located on one side of the low-temperature area where the vehicle lamp is located, and at least part of the lamp housing is provided with an infrared light-transmitting area that can penetrate infrared light, so that the infrared light in the closed chamber can penetrate the infrared light-transmitting area to the low-temperature area.
[0012] Optionally, in the above housing assembly, the infrared light-transmitting area covers all areas of the lamp housing.
[0013] Optionally, in the above housing assembly, the lamp housing is made of polypropylene material.
[0014] Optionally, in the above housing assembly, the lamp cover includes a light-shielding area and a light-transmitting area.
[0015] Optionally, in the above housing assembly, the light-transmitting area is made of white sheet transparent polycarbonate material; and / or,
[0016] The light-shielding area is made of a black opaque polycarbonate material.
[0017] Optionally, in the above-mentioned housing assembly, the light-shielding area and the light-transmitting area are integrally injection-molded.
[0018] Optionally, in the above-mentioned housing assembly, the lamp cover and the lamp housing are hermetically connected by an adhesive.
[0019] Optionally, in the above-mentioned housing assembly, the adhesive is a hot melt adhesive.
[0020] A vehicle lamp includes a light source and a housing assembly for a vehicle lamp as described in any one of the above, and the light source is located inside the housing assembly.
[0021] An electric vehicle includes an engine compartment and a vehicle lamp as described above. The lamp housing is located on one side of the engine compartment so that the infrared light emitted by the light source can penetrate the infrared light-transmitting area of the lamp housing into the engine compartment.
[0022] The housing assembly for a vehicle lamp provided in this application is provided with an infrared light-transmitting area that can penetrate infrared light in at least part of the lamp housing, and the lamp housing is arranged on one side of the low-temperature area where the vehicle lamp is located. Therefore, the infrared light emitted by the light source in the closed chamber formed by the lamp cover and the lamp housing can penetrate through the infrared light-transmitting area of the lamp housing to the low-temperature area and will not be absorbed by the lamp housing. Furthermore, the heat dissipated by the light source in the vehicle lamp can be transferred to the low-temperature area in the form of thermal radiation to achieve the purpose of heat dissipation of the vehicle lamp and improve the heat dissipation efficiency of the vehicle lamp.
[0023] The technical features mentioned above, the technical features to be mentioned below, and the technical features shown separately in the drawings can be arbitrarily combined with each other as long as the combined technical features are not contradictory. All feasible feature combinations are the technical contents clearly recorded in this article. Any one of the sub-features included in the same sentence can be independently applied without necessarily being applied together with other sub-features. BRIEF DESCRIPTION OF THE DRAWINGS
[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only the embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained according to the provided drawings without creative efforts.
[0025] Figure 1 It is a schematic structural diagram of a vehicle lamp provided by an embodiment of the present application.
[0026] Among them, 100 is a housing assembly, 101 is a lamp cover, 1011 is a light-shielding area, 1012 is a light-transmitting area, 102 is a lamp housing, 1021 is an infrared light-transmitting area, and 103 is a closed chamber;
[0027] 200 is a light source;
[0028] 300 is a vehicle body, 301 is an engine compartment, and 3011 is a low-temperature area. Specific implementation manners
[0029] The core of this application lies in providing a housing assembly for a vehicle lamp to improve the heat dissipation efficiency of the vehicle lamp.
[0030] Another core of this application lies in providing a vehicle lamp having the above-mentioned housing assembly for a vehicle lamp.
[0031] Another core of this application lies in providing an electric vehicle having the above-mentioned vehicle lamp.
[0032] Next, the technical solutions in the embodiments of this application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of this application. Obviously, the described embodiments are only a part of the embodiments of this application, rather than all the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of this application.
[0033] A vehicle lamp includes a lamp housing, a lamp cover, and a light source, and the vehicle lamp is usually a sealed component, mainly relying on the lamp housing for heat conduction and heat convection. Generally, the lamp housing material of the vehicle lamp adopts materials such as polypropylene (PP), thermoplastic synthetic polymer resin (ABS), composite materials, and modified materials. However, due to the poor heat conduction and heat radiation capabilities of the above materials, the heat dissipation efficiency of the vehicle lamp is low.
[0034] In addition, the main structure of an electric vehicle is a power battery and a motor, without an engine, which will result in a relatively low temperature in the front engine compartment of the electric vehicle. However, this advantage has not been fully utilized at present.
[0035] For this reason, as Figure 1 shown, an embodiment of this application discloses a housing assembly 100 for a vehicle lamp, including a lamp cover 101 and a lamp housing 102. By providing an infrared light-transmitting area 1021 that can penetrate infrared light in at least part of the area of the lamp housing 102, the heat dissipated by the light source 200 in the vehicle lamp can be transferred to the low-temperature area 3011 in the form of thermal radiation, so as to achieve the purpose of heat dissipation of the vehicle lamp and improve the heat dissipation efficiency of the vehicle lamp.
[0036] Next, the housing assembly 100 for a vehicle lamp disclosed in the embodiments of this application will be specifically explained and described in conjunction with Figure 1 this.
[0037] Among them, as Figure 1 shown, the lamp housing 102 is connected to the lamp cover 101 so that the lamp cover 101 and the lamp housing 102 enclose a closed chamber 103, and thus the light source 200 can be installed in the closed chamber 103. To ensure the sealing of the vehicle lamp, the lamp housing 102 and the lamp cover 101 can be hermetically connected by an adhesive.
[0038] In some embodiments, the adhesive can be a hot melt adhesive. Moreover, the hot melt adhesive can adopt a polymer matrix, such as polyethylene, polypropylene, ethylene-vinyl acetate copolymer, etc. When connecting the lamp cover 101 and the lamp housing 102, only need to melt the hot melt adhesive and then bond the lamp housing 102 and the lamp cover 101. Of course, the lamp cover 101 and the lamp housing 102 can also be mechanically connected, such as snap connection, bolt connection and other connection methods, and cooperate with a sealing ring for sealing. It should be noted that the adhesive can also be a thermally conductive adhesive, such as thermally conductive silicone gel, epoxy thermally conductive adhesive, etc., so as to improve the thermal conductivity of the housing assembly while ensuring the connection and sealing between the lamp housing 102 and the lamp cover 101.
[0039] As Figure 1 shown, the lamp housing 102 is located on one side of the low-temperature area 3011 where the vehicle lamp is located, and at least part of the lamp housing 102 is provided with an infrared light-transmitting area 1021 that can penetrate infrared light, so that the infrared light in the closed chamber 103 can penetrate the infrared light-transmitting area 1021 to the low-temperature area 3011 and will not be absorbed by the lamp housing 102. Furthermore, the heat dissipated by the light source 200 in the vehicle lamp can be transferred to the low-temperature area 3011 in the form of thermal radiation, so as to achieve the purpose of heat dissipation of the vehicle lamp and improve the heat dissipation efficiency of the vehicle lamp. It should be noted that Figure 1 the dotted arrows in the figure are light rays with different wavelengths emitted by the light source 200, and the light rays in the infrared band can pass through the infrared light-transmitting area 1021 of the lamp housing 102 to the low-temperature area 3011.
[0040] In some embodiments, as Figure 1As shown, the low-temperature area 3011 can be the area within the engine compartment 301 of the electric vehicle. At this time, the lamp housing 102 is located on one side of the engine compartment 301, and the lamp cover 101 is fixed to the vehicle body 300. When the light source 200 in the closed chamber 103 emits light of different wavelengths, some of the light in the infrared band emitted by the light source 200 can penetrate through the infrared light-transmitting area 1021 of the lamp housing 102 into the engine compartment 301, and will not be absorbed by the lamp housing 102. Thus, the heat dissipated by the light source 200 in the vehicle lamp can be transferred to the engine compartment 301 in the form of thermal radiation, so as to achieve the purpose of heat dissipation of the vehicle lamp and improve the heat dissipation efficiency of the vehicle lamp. It should be noted that since the main power source of the electric vehicle is the power battery and the motor, without an engine, the temperature of the engine compartment 301 of the electric vehicle is relatively low. In addition, the low-temperature area 3011 can also be formed by adding other structures. For example, a cooling fan, cooling fins, etc. can be set at the installation position of the vehicle lamp to reduce the temperature of this area, thereby forming the low-temperature area 3011.
[0041] In some embodiments, as Figure 1 shown, the infrared light-transmitting area 1021 can cover the entire area of the lamp housing 102, that is, the entire area of the lamp housing 102 is the infrared light-transmitting area 1021, to ensure a large infrared light penetration area, so that more heat dissipated by the light source 200 in the vehicle lamp can be transferred to the low-temperature area 3011 in the form of thermal radiation, and the heat dissipation efficiency of the vehicle lamp is improved. Specifically, the lamp housing 102 can be made of a polypropylene material that transmits infrared light. Among them, the polypropylene material that transmits infrared light can be formed by adding an infrared light-transmitting agent to polypropylene. The infrared light-transmitting agent can be a specific organic or inorganic compound, and the infrared light-transmitting agent has high light transmittance in the infrared band, such as infrared light-transmitting agents such as silicone oxygen alkane or fluoride. Of course, it is also possible to add nanomaterials with infrared light transmittance, such as carbon nanotubes, graphene, some metal oxide nanoparticles, etc. to the polypropylene material, and by forming a nanocomposite material, the infrared light transmittance of the polypropylene material is improved.
[0042] In some other embodiments, the polypropylene material that transmits infrared light can also be obtained by a copolymerization modification method, copolymerizing a monomer with infrared light transmittance with polypropylene to form a copolymer, thereby improving the infrared light transmittance of the polypropylene material. For example, a monomer containing fluorine or silicon can be copolymerized with propylene to obtain a polypropylene material that transmits infrared light.
[0043] In some other embodiments, the polypropylene material that transmits infrared light can also be obtained by physical or chemical methods to change the properties of the surface of the polypropylene material to make it have infrared light transmittance. For example, methods such as plasma treatment and laser treatment can be used to change the surface structure of the polypropylene material and improve its infrared light transmittance.
[0044] As Figure 1As shown in the figure, the lamp shade 101 includes a light-shielding area 1011 and a light-transmitting area 1012. Among them, the light-transmitting area 1012 can be made of a white transparent polycarbonate material, so that the light emitted by the light source 200 can be emitted from the light-transmitting area 1012 to ensure the lighting effect of the vehicle lamp. At the same time, the light-shielding area 1011 can be made of a black opaque polycarbonate material to prevent the light emitted by the light source 200 from being emitted from the light-shielding area 1011 to other positions of the vehicle lamp, which can further improve the lighting effect of the vehicle lamp. In addition, the light-shielding area 1011 and the light-transmitting area 1012 can be integrally injection-molded by a two-color injection molding process. Of course, the light-shielding area 1011 and the light-transmitting area 1012 can also adopt a split structure, that is, the light-shielding area 1011 and the light-transmitting area 1012 of the lamp shade 101 are respectively injection-molded, and then the light-shielding area 1011 and the light-transmitting area 1012 are spliced together.
[0045] For the housing assembly for a vehicle lamp provided in this application, by providing an infrared light-transmitting area 1021 that can penetrate infrared light in at least a part of the lamp housing 102, and arranging the lamp housing 102 on one side of the low-temperature area 3011 where the vehicle lamp is located, the infrared light in the light band emitted by the light source 200 in the closed chamber 103 formed by enclosing the lamp shade 101 and the lamp housing 102 can penetrate through the infrared light-transmitting area 1021 of the lamp housing 102 to the low-temperature area 3011, and will not be absorbed by the lamp housing 102. Furthermore, the heat dissipated by the light source 200 in the vehicle lamp can be transferred to the low-temperature area 3011 in the form of thermal radiation, so as to achieve the purpose of heat dissipation of the vehicle lamp and improve the heat dissipation efficiency of the vehicle lamp.
[0046] As Figure 1 As shown in the figure, an embodiment of this application also discloses a vehicle lamp, which includes a light source 200 and a housing assembly 100, and the light source 200 is located inside the housing assembly 100. The housing assembly 100 is the housing assembly 100 for a vehicle lamp disclosed in the above embodiment, so it has all the technical effects of the above housing assembly 100, and will not be elaborated herein.
[0047] An embodiment of this application also discloses an electric vehicle, which includes an engine compartment 301 and a vehicle lamp, and the lamp housing 102 of the vehicle lamp is located on one side of the engine compartment 301, so that the infrared light emitted by the light source 200 of the vehicle lamp can penetrate through the infrared light-transmitting area 1021 of the lamp housing 102 into the engine compartment 301, so that the heat dissipated by the light source 200 in the vehicle lamp can be transferred to the engine compartment 301 in the form of thermal radiation, so as to achieve the purpose of heat dissipation of the vehicle lamp and improve the heat dissipation efficiency of the vehicle lamp. Since the vehicle lamp is the vehicle lamp disclosed in the above embodiment, it has all the technical effects of the above vehicle lamp, and will not be elaborated herein.
[0048] In the description and claims of this application and the above-mentioned drawings, terms such as "first" and "second" are used to distinguish different objects, rather than to describe a specific order. In addition, the terms "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device that includes a series of steps or units is not limited to the listed steps or units, but may include steps or units not listed.
[0049] The above description of the disclosed embodiments enables those skilled in the art to implement or use this application. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application will not be limited to these embodiments shown herein, but rather to the broadest scope consistent with the principles and novel features disclosed herein.
Claims
1. A housing assembly for a vehicle lamp, characterized in that: include: Lampshade (101); A lamp housing (102), the lamp housing (102) being connected to the lamp shade (101), so that the lamp shade (101) and the lamp housing (102) enclose a closed chamber (103) for installing a light source (200); The lamp housing (102) is located on one side of the low-temperature area (3011) where the vehicle lamp is located, and at least a portion of the lamp housing (102) is provided with an infrared light-transmitting area (1021) that can transmit infrared light, so that infrared light in the closed chamber (103) can penetrate the infrared light-transmitting area (1021) to the low-temperature area (3011).
2. The housing assembly according to claim 1, characterized in that: The infrared light-transmitting area (1021) covers the entire area of the lamp housing (102).
3. The housing assembly according to claim 2, characterized in that: The lamp housing (102) is made of polypropylene material.
4. The housing assembly according to claim 1, characterized in that: The lampshade (101) comprises a light-shielding area (1011) and a light-transmitting area (1012).
5. The housing assembly according to claim 4, characterized in that: The light-transmitting area (1012) is made of a white transparent polycarbonate material; and / or, The shading area (1011) is made of a black sheet opaque polycarbonate material.
6. The housing assembly according to claim 4, characterized in that: The light-shielding area (1011) and the light-transmitting area (1012) are integrally injection-molded.
7. The housing assembly according to claim 1, characterized in that: The lampshade (101) and the lamp housing (102) are sealed and connected via an adhesive.
8. The housing assembly according to claim 7, characterized in that: The adhesive is hot melt adhesive.
9. A vehicle lamp, characterized in that: It comprises a light source (200) and a housing assembly (100) for a vehicle light according to any one of claims 1 to 8, wherein the light source (200) is located inside the housing assembly (100).
10. An electric vehicle, characterized in that: The vehicle lamp comprises a cabin (301) and the vehicle lamp as claimed in claim 9, wherein the lamp housing (102) is located on one side of the cabin (301) so that the infrared light emitted by the light source (200) can penetrate the infrared light transmission area (1021) of the lamp housing (102) into the cabin (301).