Vehicle light module and vehicle

Abstract

An embodiment of the present invention relates to a vehicle lamp module, comprising a light source, a housing, and a translucent lampshade. The housing comprises a first portion, wherein the light source is disposed within a cavity formed between the first portion and the translucent lampshade and also serves to dissipate heat from the light source; and a second portion, which is connected to the translucent lampshade. The first and second portions are constructed from different materials. According to an embodiment of the present invention, the relatively large area of ​​the first portion enables superior heat dissipation even in a confined installation space. The present invention also relates to a vehicle.

Description

Technical Field

[0001] The present invention relates to the field of mechanical structures, and in particular to a vehicle lamp module and a vehicle. Background Art

[0002] With the development of automotive lighting technology, the heat dissipation problem of in-vehicle lighting sources has gradually attracted attention. For example, for LEDs, part of the LED's input power is converted into light energy, and the other part 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 performance and life of the chip.

[0003] Furthermore, consumers' increasing demand for aesthetically pleasing vehicle exteriors has limited the space available for headlight installation. Designing an effective heat dissipation solution within this confined space has become a new challenge. Existing metal heat sinks are typically located at the rear end of the headlight module and partially enclosed by the headlight's plastic housing. If this design were to be used within this confined space, the plastic housing would largely enclose the heat sink, reducing its contact area with the outside world and significantly compromising heat dissipation performance. Summary of the Invention

[0004] Therefore, an object of the present invention is to provide a vehicle light module and a vehicle, which can at least partially solve the above-mentioned problems.

[0005] According to one aspect of the present invention, a vehicle lamp module is provided, comprising a light source, a housing, and a translucent lampshade, wherein the housing comprises:

[0006] a first part, wherein the light source is disposed in a cavity formed between the first part and the light-transmitting lampshade, and the first part is also used for dissipating heat for the light source;

[0007] The second part is used to connect the light-transmitting lampshade;

[0008] The first part and the second part are made of different materials.

[0009] According to an embodiment of the present invention, the first part of the shell that accommodates the light source is used to dissipate heat from the light source. Since the area of ​​the first part is relatively large, even in a narrow installation space, the contact area between the heat dissipation component and the outside world can be greatly increased, thereby achieving better heat dissipation performance.

[0010] Furthermore, by making the first part used for heat dissipation function and the second part used for connection function have different material categories, the characteristics of different material categories themselves can be fully utilized to avoid the material category used for heat dissipation function being unsuitable for connection function, or the material category used for connection function being unsuitable for heat dissipation function.

[0011] In some embodiments, the first portion is made of a metallic material, and the second portion is made of a non-metallic material.

[0012] According to embodiments of the present invention, by using a metal housing as the heat sink for the light source within a headlight, the contact area between the heat sink and the outside world can be significantly increased, thereby achieving superior heat dissipation performance, even within a confined installation space. Furthermore, because the metal housing's heat dissipation performance is superior to that of conventional plastic housings, the metal housing can be significantly smaller than conventional plastic housings, enabling better fitment in confined spaces while maintaining minimal cost.

[0013] Furthermore, using a non-metallic material for the first portion can reduce the cost of the housing.

[0014] In some embodiments, the first portion and the second portion are integrally formed by a two-shot injection molding process.

[0015] According to the embodiments of the present invention, the secondary injection molding process can improve product quality, reduce production costs, and improve aesthetics.

[0016] In some embodiments, the first portion and the second portion cooperate so that the first portion and the second portion do not delaminate due to different thermal expansion coefficients when the temperature changes.

[0017] According to the embodiment of the present invention, the first part and the second part cooperate with each other so that they will not delaminate due to different thermal expansion coefficients when the temperature changes.

[0018] In some embodiments, the second portion entirely surrounds the outer circumference of the first portion.

[0019] In some embodiments, the first part includes a first body and an extended bite area, the extended bite area is arranged along the outer peripheral surface of the first body, and the second part includes a second body, the second body is annular, and the inner peripheral surface of the second body is constructed as a C-shaped covering surface for covering the extended bite area.

[0020] In some embodiments, at least one opening is provided on at least one surface of the extended bite area in contact with the inner peripheral surface, and the second part also includes at least one filling portion extending from the inner peripheral surface, and the at least one filling portion corresponds one-to-one to the at least one opening and fills the at least one opening.

[0021] In some embodiments, the at least one opening extends through the extension bite region.

[0022] In some embodiments, the first part includes a first body and an extended bite area, the extended bite area is arranged along the outer circumferential surface of the first body, and at least one wedge-shaped slot is provided on the extended bite area. The second part includes a second body and at least one wedge-shaped plug extending from the outer surface of the second body. The at least one wedge-shaped plug corresponds to the at least one wedge-shaped slot one by one and is embedded in the at least one wedge-shaped slot.

[0023] In some embodiments, the second portion and the light-transmitting lampshade are both made of plastic material and are connected together by ultrasonic welding or vibration welding.

[0024] According to the embodiments of the present invention, ultrasonic welding or vibration welding has the advantages of low space requirement, high welding speed, low cost, and beautiful appearance.

[0025] According to another aspect of the present invention, a vehicle is provided, comprising any one of the vehicle light modules described above. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The above characteristics, technical features, advantages and implementation methods of the present invention will be further described below in a clear and understandable manner through the description of preferred embodiments and in conjunction with the accompanying drawings, wherein:

[0027] Figure 1 is a schematic diagram of a three-dimensional structure of a vehicle lamp module 100 according to an embodiment of the present invention;

[0028] Figure 2 This invention Figure 1 A partial structural diagram of a headlight module 100;

[0029] Figure 3a is a front schematic diagram of a housing 120 according to an embodiment of the present invention;

[0030] Figure 3b is a schematic diagram of a three-dimensional structure of a housing 120 according to an embodiment of the present invention;

[0031] Figure 3c yes Figure 3a and Figure 3b An exploded schematic diagram of the housing 120;

[0032] Figure 3d yes Figure 3a A schematic cross-sectional view of the housing 120 along the AA axis;

[0033] Figure 3e is a front view of a vehicle lamp module 100 according to an embodiment of the present invention;

[0034] Figure 3f yes Figure 3e A schematic cross-sectional view of the vehicle lamp module 100 along the II axis;

[0035] Figure 4a is a front schematic diagram of a housing 120 according to another embodiment of the present invention;

[0036] Figure 4b is a schematic diagram of a three-dimensional structure of a housing 120 according to another embodiment of the present invention;

[0037] Figure 4c yes Figure 4a and Figure 4b An exploded schematic diagram of the housing 120;

[0038] Figure 4d yes Figure 5a A schematic cross-sectional view of the housing 120 along the CC axis;

[0039] Figure 5a is a front schematic diagram of a housing 120 according to another embodiment of the present invention;

[0040] Figure 5b is a schematic diagram of a three-dimensional structure of a housing 120 according to another embodiment of the present invention;

[0041] Figure 5c yes Figure 5a and Figure 5b An exploded schematic diagram of the housing 120;

[0042] Figure 5d yes Figure 5a A schematic cross-sectional view of the housing 120 along the EE axis. DETAILED DESCRIPTION

[0043] The following describes embodiments of the present invention by way of example. As will be appreciated by those skilled in the art, the embodiments described may be modified in various ways without departing from the spirit of the present invention. Therefore, the drawings and description are illustrative and non-restrictive in nature. Hereinafter, the same reference numerals generally indicate elements with the same or similar functions.

[0044] According to the overall concept of the present invention, a vehicle lamp module is provided, comprising a light source, a housing and a translucent lampshade, wherein the housing comprises a first portion, the light source is arranged in a cavity formed between the first portion and the translucent lampshade, and the first portion is also used to dissipate heat from the light source; the housing further comprises a second portion for connecting to the translucent lampshade; wherein the first portion and the second portion have different material categories.

[0045] In one example, the first portion and the second portion cooperate so that the first portion and the second portion do not delaminate due to differences in thermal expansion coefficients when the temperature changes.

[0046] According to an embodiment of the present invention, the first part of the shell that accommodates the light source is used to dissipate heat from the light source. Since the area of ​​the first part is relatively large, even in a narrow installation space, the contact area between the heat dissipation component and the outside world can be greatly increased, thereby achieving better heat dissipation performance.

[0047] Furthermore, by making the first part used for heat dissipation function and the second part used for connection function have different material categories, the characteristics of different material categories themselves can be fully utilized to avoid the material category used for heat dissipation function being unsuitable for connection function, or the material category used for connection function being unsuitable for heat dissipation function.

[0048] In addition, when the first part and the second part are made of different materials, delamination may occur due to their different thermal expansion coefficients. The embodiments of the present invention can prevent this phenomenon by coordinating the first part and the second part.

[0049] Figure 1 1 is a schematic diagram of a three-dimensional structure of a vehicle lamp module 100 according to an embodiment of the present invention. Figure 2 yes Figure 1 A partial structural diagram of the vehicle lamp module 100 of the present invention is shown in FIG. Figure 1 and Figure 2 As shown, the vehicle lamp module 100 may include a light source 110, a shell 120 and a translucent lampshade 130, wherein the shell 120 includes a first part 121, the light source 110 is arranged in a cavity formed between the first part 121 and the translucent lampshade 130, and the first part 121 is also used to dissipate heat for the light source 110; the second part 122 is used to connect the translucent lampshade 130; wherein the first part 121 and the second part 122 have different material categories.

[0050] It should be noted that if two materials have different material compositions, they belong to different material categories. For example, but not limited to, metal and plastic belong to different material categories, and thermal conductive plastic and plastic also belong to different material categories.

[0051] The light source 110 may include, but is not limited to, an incandescent lamp, a halogen lamp, an LED lamp, a xenon lamp, a laser source, etc. In addition, the vehicle lamp module 100 may further include other optical components in the cavity formed between the first portion 121 and the light-transmitting lampshade 130, such as, but not limited to, a light guide, a collimator, a reflector, a lens, etc.

[0052] In one example, the first portion 121 can be made of a metal material, such as, but not limited to, aluminum alloy, magnesium alloy, copper, etc. In this case, by using a metal housing as the heat dissipation component of the light source within the headlight, the contact area between the heat dissipation component and the outside world can be greatly increased, even in a confined installation space, thereby achieving superior heat dissipation performance. Furthermore, because the heat dissipation performance of the metal housing is superior to that of conventional plastic housings, the volume of the metal housing can be significantly smaller than that of conventional plastic housings, ensuring that costs are not increased while better adapting to confined spaces.

[0053] In another example, the first portion 121 may be made of thermally conductive plastic (or heat dissipation plastic), wherein the heat dissipation plastic has a thermal expansion coefficient close to that of metal.

[0054] It should be noted that the material of the first portion 121 is not limited to the above, and the first portion 121 can also be made of other types of materials.

[0055] In one example, the tail portion of the first portion 121 may be configured as a wing-shaped structure to improve the heat dissipation performance of the first portion 121 .

[0056] In one example, the second portion 122 can be made of a plastic material, such as, but not limited to, PC (Polycarbonate), PP (Polypropylene), ABS (Acrylonitrile Butadiene Styrene), PBT (Polybutylene terephthalate), etc. In this case, the overall cost of the housing can be reduced, and welding connection between the second portion 122 and the light-transmitting cover 130 becomes feasible.

[0057] In addition, the light-transmitting lampshade 130 may also be made of a plastic material, such as, but not limited to, transparent PC, PMMA (polymethyl methacrylate), etc. In this case, the second portion 122 and the light-transmitting lampshade 130 may be connected together by ultrasonic welding, vibration welding, or other welding methods. Ultrasonic welding or vibration welding has the advantages of low space requirements, high welding speed, low cost, and good appearance.

[0058] It should be noted that the material of the second portion 122 is not limited to the above, and the second portion 122 can also be made of other types of materials.

[0059] In one example, the first portion 121 and the second portion 122 of the housing 120 can be integrally formed by a two-shot injection molding process (Overmold), wherein the two-shot injection molding process can improve product quality, reduce production costs, and improve aesthetics.

[0060] In other examples, the first portion 121 and the second portion 122 may also be connected together by other processes such as gluing.

[0061] The shell 120 serves as a heat dissipation component of the light source 110. The first part 121 and the second part 122 are made of different material categories, so they have different thermal expansion coefficients. Then, when the temperature changes, the first part 121 and the second part 122 may delaminate due to the inconsistent degree of thermal expansion and contraction. The following will explain how the first part 121 and the second part 122 cooperate to prevent this phenomenon from occurring.

[0062] Example 1

[0063] Figure 3a is a front view of a housing 120 according to an embodiment of the present invention. Figure 3b is a perspective schematic diagram of a housing 120 according to an embodiment of the present invention. Figure 3c yes Figure 3a and Figure 3b An exploded schematic diagram of the housing 120, Figure 3d yes Figure 3a A schematic cross-sectional view of the housing 120 along the AA axis, wherein the area B is partially enlarged. Figures 3a to 3d As shown, the first part 121 includes a first body 1211 and an extended bite area 1212, wherein the extended bite area 1212 is arranged along the outer peripheral surface of the first body 1211; the second part 122 includes a second body 1221, the second body 1221 is annular and its inner peripheral surface 1222 is constructed as a C-shaped covering surface for covering the extended bite area 1212.

[0064] In one example, the first body 1211 and the extended engaging area 1212 of the first portion 121 may be integrally formed.

[0065] In addition, if Figures 3a to 3d As shown, the second portion 122 may further include a second assembly portion 1225 for installing the vehicle lamp module 100 on a vehicle.

[0066] In this embodiment, the first portion 121 and the second portion 122 can be integrally formed through a two-shot injection molding process, and the thermal expansion coefficient of the first portion 121 is lower than that of the second portion 122. For example, but not limited to, the first portion 121 is made of a metal material, and the second portion 122 is made of a plastic material. Because their operating temperature does not exceed the injection molding temperature, after injection molding, regardless of temperature fluctuations, the shrinkage of the second portion 122 will remain greater than that of the first portion 121 compared to the moment of injection molding. Furthermore, because the second portion 122 forms a C-shaped wrap around the extended interlocking region 1212 of the first portion 121, regardless of temperature fluctuations, the second portion 122 will tightly wrap around the extended interlocking region 1212, preventing delamination between the first portion 121 and the second portion 122.

[0067] Figure 3e 1 is a front view of a vehicle lamp module 100 according to an embodiment of the present invention. Figure 3f yes Figure 3e A schematic cross-sectional view of the vehicle lamp module 100 along the II axis, wherein the region J is partially enlarged. Figure 3a to Figure 3d The second part 122, Figure 3f The welding area M between the light-transmitting lampshade 130 is shown.

[0068] Example 2

[0069] Figure 4a is a front view of a housing 120 according to an embodiment of the present invention. Figure 4b is a perspective schematic diagram of a housing 120 according to an embodiment of the present invention. Figure 4c yes Figure 4a and Figure 4b An exploded schematic diagram of the housing 120, Figure 4d yes Figure 4a A schematic cross-sectional view of the housing 120 along the CC axis, wherein the region D is partially enlarged. Figures 4a to 4d As shown, the first part 121 includes a first body 1211 and an extended bite area 1212, wherein the extended bite area 1212 is arranged along the outer peripheral surface of the first body 1211; the second part 122 includes a second body 1221, the second body 1221 is annular, and the inner peripheral surface 1222 of the second body 1221 is constructed as a C-shaped covering surface for covering the extended bite area 1212.

[0070] In addition, if Figures 4a to 4dAs shown, at least one opening 1213 is provided on the extended bite area 1212, and the opening 1213 passes through the extended bite area 1212; the second part 122 also includes at least one filling portion 1223 extending from the inner circumferential surface 1222, and the at least one filling portion 1223 corresponds one-to-one to the at least one opening 1213 and fills the at least one opening 1213.

[0071] It should be noted that the at least one opening 1213 may not penetrate the outer engaging area 1212 , but may be provided on at least one surface in contact with the inner circumferential surface 1222 .

[0072] Preferably, the openings 1213 are evenly distributed on the extended bite area 1212.

[0073] In one example, the first body 1211 and the extended engaging area 1212 of the first portion 121 can be integrally formed; the second body 1221 and the filling portion 1223 of the second portion 122 can also be integrally formed.

[0074] In this embodiment, if the first part 121 and the second part 122 are integrally formed through a secondary injection molding process, and the thermal expansion coefficient of the first part 121 is lower than the thermal expansion coefficient of the second part 122, then as analyzed in Example 1, the first part 121 and the second part 122 will not delaminate; in addition, since the filling part 1223 of the second part 122 is filled into the opening 1213 of the first part 121, the first part 121 and the second part 122 can be further prevented from delaminating.

[0075] In this embodiment, if the first part 121 and the second part 122 are connected by other processes such as gluing, no matter what the relationship between the thermal expansion coefficient of the first part 121 and the thermal expansion coefficient of the second part 122 is, since the second part 122 wraps the first part 121 in a C-shape, and the filling portion 1223 of the second part 122 is filled into the opening 1213 of the first part 121, no matter how the temperature changes, the first part 121 and the second part 122 will not delaminate.

[0076] In addition, if Figures 4a to 4d As shown, the second part 122 may further include a second assembly portion 1225 for mounting the lamp module 100 on a vehicle. The welding area between the second part 122 and the light-transmitting lampshade 130 may be referred to as Figure 3f .

[0077] Example 3

[0078] Figure 5a is a front view of a housing 120 according to an embodiment of the present invention. Figure 5bis a perspective schematic diagram of a housing 120 according to an embodiment of the present invention. Figure 5c yes Figure 5a and Figure 5b An exploded schematic diagram of the housing 120, Figure 5d yes Figure 5a A schematic cross-sectional view of the housing 120 along the EE axis, wherein the region F is partially enlarged. Figures 5a to 5d As shown, the first part 121 includes a first body 1211 and an extended bite area 1212, wherein the extended bite area 1212 is arranged along the outer circumferential surface of the first body 1211, and at least one wedge-shaped slot 1214 is provided on the extended bite area 1212; the second part 122 includes a ring-shaped second body 1221, and at least one wedge-shaped plug 1224 extending from the outer surface of the second body 1221, and the at least one wedge-shaped plug 1224 corresponds to the at least one wedge-shaped slot 1214 one-to-one and is embedded in the at least one wedge-shaped slot 1214.

[0079] Preferably, the wedge-shaped slots 1214 are evenly distributed on the extended bite area 1212 , and the wedge-shaped inserts 1224 are evenly distributed on the second body 1221 .

[0080] In one example, only one annular wedge-shaped slot 1214 may be provided on the extended engagement area 1212 , and similarly, only one annular wedge-shaped insert 1224 may be provided on the second body 1221 .

[0081] In one example, the first body 1211 and the extended bite area 1212 of the first portion 121 can be integrally formed; the second body 1221 and the wedge-shaped slot 1214 of the second portion 122 can be integrally formed.

[0082] In this embodiment, if the first part 121 and the second part 122 are integrally formed through a two-shot injection molding process, and the thermal expansion coefficient of the first part 121 is lower than that of the second part 122, since their operating temperature will not be higher than the injection molding temperature, after injection molding, regardless of how the temperature changes, the shrinkage of the second part 122 will remain greater than the shrinkage of the first part 121 compared to the moment of injection molding. In this way, the wedge-shaped insert 1224 of the second part 122 will remain tightly against the wedge-shaped slot 1214 of the first part 121, so that the first part 121 and the second part 122 will not delaminate.

[0083] In this embodiment, if the first part 121 and the second part 122 are formed by other processes such as gluing, no matter what the relationship between the thermal expansion coefficient of the first part 121 and the thermal expansion coefficient of the second part 122 is, and no matter how the temperature changes, the second part 122 will remain tightly against the first part 121, so that the first part 121 and the second part 122 will not delaminate.

[0084] In addition, if Figures 5a to 5d As shown, the first part 121 may further include a first assembly portion 1215 for mounting the vehicle lamp module 100 on the vehicle. The welding area between the second part 122 and the light-transmitting lampshade 130 may refer to Figure 3f .

[0085] In the embodiment of the present application, the vehicle light module can be used to implement, but is not limited to, headlights, rear lights, daytime running lights, position indicator lights, brake lights, tail lights, etc.

[0086] The present invention is not limited to the above-described configuration, and various other variations are also possible. Although the present invention has been described with reference to a limited number of embodiments, those skilled in the art, having benefit of this disclosure, may devise other embodiments that do not depart from the scope of the invention disclosed herein. Therefore, the scope of the present invention shall be limited solely by the appended claims.

Claims

1. A vehicle light module (100), characterized in that: It comprises a light source (110), a housing (120) and a light-transmitting lampshade (130), wherein the housing (120) comprises: a first portion (121), the first portion opening toward the translucent lampshade, the light source (110) being disposed in a cavity formed between the first portion (121) and the translucent lampshade (130), the first portion being spaced apart from the light source, and the first portion (121) of the housing accommodating the light source being further used to dissipate heat for the light source (110); and a second part (122), wherein the first part (121) and the second part (122) are integrally formed by a secondary injection molding process, the second part (122) surrounds the outer peripheral surface of the first part (121) as a whole, and the second part (122) is used to connect the light-transmitting lampshade (130) at a position located on the outer peripheral surface of the first part (121); The first part (121) and the second part (122) have different material categories, the first part (121) is made of a metal material, and a metal shell is used as a heat dissipation component of the light source with an area in contact with the outside world, and the second part (122) is made of a non-metallic material.

2. The vehicle light module (100) according to claim 1, characterized in that: The first part (121) and the second part (122) cooperate with each other so that the first part (121) and the second part (122) will not delaminate due to different thermal expansion coefficients when the temperature changes.

3. The vehicle light module (100) according to claim 2, characterized in that: The first part (121) includes a first body (1211) and an extended bite area (1212), wherein the extended bite area (1212) is arranged along the outer peripheral surface of the first body (1211); the second part (122) includes a second body (1221), wherein the second body (1221) is annular, and the inner peripheral surface (1222) of the second body (1221) is constructed as a C-shaped covering surface for covering the extended bite area (1212).

4. The vehicle light module (100) according to claim 3, characterized in that: At least one opening (1213) is provided on at least one surface of the extended bite area (1212) in contact with the inner peripheral surface (1222), and the second part (122) further includes at least one filling portion (1223) extending from the inner peripheral surface (1222), and the at least one filling portion (1223) corresponds one-to-one to the at least one opening (1213) and fills the at least one opening (1213).

5. The vehicle light module (100) according to claim 4, characterized in that: The at least one opening (1213) extends through the extension bite region (1212).

6. The vehicle light module (100) according to claim 2, characterized in that: The first part (121) includes a first body (1211) and an extended bite area (1212), wherein the extended bite area (1212) is arranged along the outer peripheral surface of the first body (1211), and at least one wedge-shaped slot (1214) is provided on the extended bite area (1212); the second part (122) includes a second body (1221), and at least one wedge-shaped plug (1224) extending from the outer surface of the second body (1221), wherein the at least one wedge-shaped plug (1224) corresponds to the at least one wedge-shaped slot (1214) one by one and is embedded in the at least one wedge-shaped slot (1214).

7. The vehicle light module (100) according to any one of claims 1 to 6, characterized in that: The second part (122) and the light-transmitting lampshade (130) are both made of plastic material and are connected together by ultrasonic welding or vibration welding.

8. The vehicle light module (100) according to any one of claims 1 to 6, characterized in that: The first portion (121) circumferentially surrounds the light source (110).

9. A vehicle, characterized in that: Comprising the vehicle light module (100) according to any one of claims 1 to 8.

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