A heat dissipation assembly, a vehicle lamp module, a vehicle lamp and a vehicle

Abstract

The application discloses a heat dissipation assembly, a vehicle lamp module, a vehicle lamp and a vehicle. The heat dissipation assembly comprises a heat dissipation base and at least one auxiliary heat dissipation fin. The heat dissipation base has a first surface and a second surface arranged oppositely. The second surface of the heat dissipation base is used for mounting a circuit assembly. The heat dissipation assembly is used for dissipating heat of the mounted circuit assembly. The at least one auxiliary heat dissipation fin extends from the heat dissipation base and extends away from the first surface. The vehicle lamp module comprises a module shell, a light source, a circuit assembly, an optical assembly and the heat dissipation assembly. The vehicle lamp comprises the vehicle lamp module, a wire harness and a connector. One end of the wire harness is connected to the connector. The wire harness and the circuit assembly are located on two sides of the auxiliary heat dissipation fin provided with a avoiding opening. The connector is connected to an electrical connection interface through the avoiding opening. The vehicle comprises the vehicle lamp module or the vehicle lamp.

Description

Technical Field

[0001] This application belongs to the field of automotive lighting technology, and in particular relates to a heat dissipation component, an automotive lighting module, an automotive lighting, and a vehicle. Background Technology

[0002] With the automotive industry trending towards lightweighting and integration, the demands for space utilization in vehicle body structure design continue to increase, leading to a general reduction in the installation space for automotive lighting fixtures. This space constraint directly impacts the cooling system of the lighting modules, severely limiting the size design of the radiators and making it impossible to improve heat dissipation capacity through traditional methods of increasing volume. This presents a primary challenge for module thermal management. Simultaneously, the automotive manufacturing industry's cost control requirements are becoming increasingly stringent. In radiator material selection, the industry generally prioritizes untreated aluminum. Although aluminum possesses basic thermal conductivity and cost advantages, the lack of surface treatment (such as anodizing or coating) significantly reduces its surface radiation heat dissipation efficiency and heat exchange capacity, further weakening the radiator's heat dissipation performance, creating a dual technical bottleneck of "space constraints and cost constraints." However, with the diversification of automotive lighting functions and the application of technologies such as increased LED light source power and multi-beam control, customers' requirements for the thermal performance of lighting modules have not decreased. On the contrary, they have raised the standards for operating temperature stability and the thermal life of core components. Against this backdrop, how to meet customers' stringent thermal requirements within limited installation space, based on low-cost untreated aluminum heat sinks, has become a core issue that urgently needs to be addressed in the design phase of automotive lighting modules. It is also a key technical pain point that currently restricts the improvement of module performance and product iteration in the industry. Utility Model Content

[0003] To address the aforementioned issues, this application provides a heat dissipation component, a headlight module, a headlight, and a vehicle, which can increase the heat dissipation area of ​​the heat dissipation component within a limited space.

[0004] The technical solution of this application is as follows: A heat dissipation assembly includes a heat dissipation base and at least one auxiliary heat sink. The heat dissipation base has a first surface and a second surface disposed opposite to each other. The second surface of the heat dissipation base is used to mount circuit components, and the heat dissipation assembly is used to dissipate heat from the mounted circuit components. At least one of the auxiliary heat sinks extends from the heat sink base and away from the first surface.

[0005] In a preferred embodiment of the heat dissipation assembly, the heat dissipation base and the auxiliary heat dissipation fins are an integral piece.

[0006] In a preferred embodiment of the heat dissipation assembly, the integral component is a heat dissipation substrate, which is bent so that the auxiliary heat dissipation fins extend from the heat dissipation base and away from the first surface.

[0007] In a preferred embodiment of the heat dissipation assembly, at least one of the auxiliary heat sinks is provided with a clearance opening, and the circuit assembly has an electrical connection interface, with the clearance opening aligned with the electrical connection interface on the circuit assembly.

[0008] In a preferred embodiment of the heat dissipation assembly, in the insertion direction of the electrical connection interface, the clearance port exposes the electrical connection interface so that the mating part of the electrical connection interface can be inserted into the electrical connection interface through the clearance port.

[0009] In a preferred embodiment of the heat dissipation assembly, both the heat dissipation base and the auxiliary heat dissipation fins are made of aluminum without surface treatment.

[0010] In a preferred embodiment of the heat dissipation assembly, a plurality of heat dissipation fins are provided on the first surface of the heat dissipation base, arranged side by side at intervals.

[0011] Based on the same concept, this application also provides a vehicle lighting module, including a module housing, a light source, a circuit assembly, an optical assembly, and a heat dissipation assembly as described above, wherein the light source is disposed on the circuit assembly, and the auxiliary heat sink at least covers part of the gap between the module housing and the heat dissipation base.

[0012] Based on the same concept, this application also provides a vehicle light, including a vehicle light module, a wiring harness, and a connector as described above; one end of the wiring harness is connected to the connector, the wiring harness and the circuit assembly are located on both sides of the auxiliary heat sink with the clearance opening, and the connector passes through the clearance opening and is plugged into the electrical connection interface.

[0013] Based on the same concept, this application also provides a vehicle, including the headlight module as described above or the headlights as described above.

[0014] Because this application adopts the above technical solution, it has the following advantages and positive effects compared with the prior art: The heat dissipation assembly, vehicle lamp module, vehicle lamp and vehicle provided in this application have circuit components that need to be dissipated mounted on the second surface of the heat dissipation base. By setting auxiliary heat dissipation fins extending from the heat dissipation base, the heat dissipation area of ​​the heat dissipation assembly is increased and the heat dissipation capacity of the heat dissipation assembly is improved. Attached Figure Description

[0015] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of this application.

[0016] Figure 1 This is a schematic diagram of a vehicle lighting module in the prior art; Figure 2 This is a schematic diagram of a heat dissipation component in the prior art; Figures 3 to 5 This is a schematic diagram of a vehicle headlight module according to this application; Figure 6 This is a schematic diagram of a heat dissipation component according to this application; Figure 7 This is a schematic diagram of a heat dissipation component and a circuit component according to this application; Figure 8 and Figure 9 This is a schematic diagram of a vehicle light according to this application; Figure 10 This is a schematic diagram of the stray light path emitted by the light source without an auxiliary heat sink. Figure 11 This is a schematic diagram of the stray light path emitted by the light source when an auxiliary heat sink is provided.

[0017] Explanation of reference numerals in the attached figures: 1: Heat sink base; 2: Heat sink fins; 3: Auxiliary heat sink; 31: Clearance opening; 4: Circuit assembly; 41: Electrical connection interface; 5: Module housing; 6: Wiring harness; 7: Connecting parts. Detailed Implementation

[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the specific implementation methods of this application will be described below with reference to the accompanying drawings. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings and other implementation methods can be obtained based on these drawings without creative effort.

[0019] To keep the drawings concise, each drawing only schematically shows the parts relevant to this application, and they do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of the components with the same structure or function is schematically shown, or only one is labeled. In this document, "one" not only means "only one," but can also mean "more than one."

[0020] In the description of this application, the term "a" not only means "only one" but can also mean "more than one". The terms "first", "second", "third", etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance. The terms "perpendicular" and "parallel" do not mean absolutely perpendicular or parallel, but can be approximately perpendicular or approximately parallel.

[0021] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "set up," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0022] like Figure 1 and Figure 2 As shown, some existing automotive lighting module heat dissipation components generally include a heat dissipation base 1' and several heat dissipation fins 2'. The heat dissipation base 1' has a first surface and a second surface arranged opposite to each other. The first surface of the heat dissipation base 1' is connected to several heat dissipation fins 2', and the second surface of the heat dissipation base 1' is used for mounting circuit components that require heat dissipation. The light source in the automotive lighting module is set on the circuit components. The module housing 5' is mounted on the circuit components and / or the heat dissipation components, and both the light source and the optical components are located inside the module housing 5'. The optical components are mounted on the module housing 5' and / or the circuit components, and the light emitted by the light source is shaped into the desired light pattern by the optical components.

[0023] The reduced space in current vehicle lighting fixtures limits the size of heat dissipation components. Furthermore, due to cost reduction requirements, no surface treatment is applied to the heat dissipation base and fins (adding surface treatment can improve the heat dissipation performance of the heat dissipation base and fins). Under these circumstances, ensuring that the heat dissipation components have sufficient heat dissipation effect is an urgent problem to be solved.

[0024] To address the aforementioned problems, the first aspect of this application provides a heat dissipation component. See [link / reference]. Figures 3 to 7 An embodiment of this application provides a heat dissipation assembly including a heat dissipation base 1 and at least one auxiliary heat sink 3. The heat dissipation base 1 has a first surface and a second surface disposed opposite to each other. The second surface of the heat dissipation base 1 is used to mount a circuit assembly 4, and the heat dissipation assembly is used to dissipate heat from the mounted circuit assembly 4. At least one auxiliary heat sink 3 extends from the heat dissipation base 1 and extends away from the first surface. In this embodiment, the circuit assembly 4 requiring heat dissipation is mounted on the second surface of the heat dissipation base. By providing the auxiliary heat sink 3 extending from the heat dissipation base 1, the heat dissipation area of ​​the heat dissipation assembly is increased, thereby improving the heat dissipation capacity of the heat dissipation assembly. Preferably, the heat dissipation base 1 and the auxiliary heat sink 3 are a single piece, which is a heat dissipation substrate. The heat dissipation substrate is bent so that the auxiliary heat sink 3 extends from the heat dissipation base 1 and extends away from the first surface. Of course, in other embodiments, the heat dissipation base 1 and the auxiliary heat sink 3 may not be a single piece. After a portion of the surface of the auxiliary heat sink 3 is attached to a portion of the surface of the heat dissipation base 1, the two are fixedly connected by means of screws, welding, etc.

[0025] At least one auxiliary heat sink 3 is provided with a clearance opening 31, and the circuit assembly 4 has an electrical connection interface 41. The clearance opening 31 is aligned with the electrical connection interface 41 on the circuit assembly 4. Specifically, in the insertion direction of the electrical connection interface 41, the clearance opening 31 exposes the electrical connection interface 41 so that the mating part 7 of the electrical connection interface 41 can be inserted into the electrical connection interface 41 through the clearance opening 31.

[0026] In this embodiment, as Figure 5 and Figure 7 As shown, the heat dissipation assembly includes an auxiliary heat sink 3, and the auxiliary heat sink 3 is positioned above the circuit assembly 4 (here, "above" means above). Figure 7 In other embodiments, the heat dissipation assembly may be provided with multiple auxiliary heat sinks 3, which may also be arranged around the circuit assembly 4 in other locations, such as below, left or right sides, etc. (here, "below" and "left or right sides" refer to the orientation of the circuit assembly 4). Figure 7 (location within).

[0027] Furthermore, in this embodiment, the first surface of the heat dissipation base 3 is provided with a plurality of heat dissipation fins 2 arranged side by side at intervals.

[0028] To save costs, the heat dissipation base 1, auxiliary heat dissipation fins 3, and heat dissipation fins 2 can all be made of aluminum without surface treatment. Of course, in other embodiments, the heat dissipation base 1, auxiliary heat dissipation fins 3, and heat dissipation fins 2 can also be surface treated or made of other materials. This application does not limit the materials of the heat dissipation components or whether the plates in the heat dissipation components are surface treated.

[0029] The second aspect of this application provides a vehicle lighting module, including the heat dissipation component provided in the first aspect of this application, and therefore possesses all its beneficial effects, which will not be elaborated further here. See also Figures 3 to 7 The vehicle headlight module provided in one embodiment of this application further includes a module housing 5, a light source, a circuit assembly 4, and an optical assembly. The light source is disposed on the circuit assembly 4, and the module housing 5 is mounted on the circuit assembly 4 and / or a heat dissipation assembly. The light source and the optical assembly are located inside the module housing 5, and the optical assembly is mounted on the module housing 5 and / or the circuit assembly 4. The light emitted by the light source is shaped into the desired light pattern (e.g., low beam pattern, high beam pattern, etc.) by the optical assembly.

[0030] The auxiliary heat sink 3 covers at least part of the gap between the module housing 5 and the heat sink base, thereby blocking stray light emitted by the light source towards the auxiliary heat sink 3. This improves the visual effect of the headlight module when it is lit and reduces the visual impact caused by stray light. Figure 10 and Figure 11 As shown (the arrow indicates the stray light path), Figure 10 The image shows the stray light path emitted by the light source when the auxiliary heat sink 3 is not installed. Figure 11 The image shows the stray light path emitted by the light source when the auxiliary heat sink 3 is installed.

[0031] like Figure 3 and Figure 4 As shown, in this embodiment, the auxiliary heat sink 3 is set close to the module housing, so the setting of the auxiliary heat sink 3 hardly increases the additional space occupied.

[0032] A third aspect of this application provides a vehicle light. See also... Figure 8 and Figure 9 One embodiment of this application provides a vehicle light including a wiring harness 6, a connector 7, and a vehicle light module provided in the second aspect of this application. One end of the wiring harness 6 is connected to the connector 7. The wiring harness 6 and the circuit assembly 4 are located on both sides of an auxiliary heat sink 3 with a clearance opening 31. The connector 7 passes through the clearance opening 31 and is plugged into an electrical connection connector. The vehicle light provided in the third aspect of this application includes the vehicle light module provided in the second aspect of this application, and therefore possesses all its beneficial effects, which will not be described in detail here.

[0033] The fourth aspect of this application provides a vehicle, including the headlight module provided in the second aspect of this application or the headlight provided in the third aspect of this application, and therefore possesses all its beneficial effects, which will not be elaborated here.

[0034] The embodiments of this application have been described in detail above with reference to the accompanying drawings, but this application is not limited to the above embodiments. Even if various changes are made to this application, if these changes fall within the scope of the claims of this application and their equivalents, they shall still fall within the protection scope of this application.

Claims

1. A heat dissipation component, characterized in that, The device includes a heat sink base and at least one auxiliary heat sink. The heat sink base has a first surface and a second surface disposed opposite to each other. The second surface of the heat sink base is used to mount circuit components, and the heat sink assembly is used to dissipate heat from the mounted circuit components. At least one of the auxiliary heat sinks extends from the heat sink base and away from the first surface.

2. The heat dissipation assembly according to claim 1, characterized in that, The heat dissipation base and the auxiliary heat dissipation plate are an integral part.

3. The heat dissipation assembly according to claim 2, characterized in that, The integral component is a heat dissipation substrate, which is bent so that the auxiliary heat sink extends from the heat dissipation base and away from the first surface.

4. The heat dissipation assembly according to claim 1, characterized in that, At least one of the auxiliary heat sinks is provided with a clearance opening, and the circuit assembly has an electrical connection interface, with the clearance opening aligned with the electrical connection interface on the circuit assembly.

5. The heat dissipation assembly according to claim 4, characterized in that, In the insertion direction of the electrical connection interface, the clearance opening exposes the electrical connection interface so that the mating part of the electrical connection interface can be inserted into the electrical connection interface through the clearance opening.

6. The heat dissipation assembly according to any one of claims 1 to 3, characterized in that, Both the heat dissipation base and the auxiliary heat dissipation fins are made of aluminum without surface treatment.

7. The heat dissipation assembly according to claim 1, characterized in that, The first surface of the heat dissipation base is provided with a plurality of heat dissipation fins arranged side by side at intervals.

8. A vehicle headlight module, characterized in that, The device includes a module housing, a light source, a circuit assembly, an optical assembly, and a heat dissipation assembly as described in claim 4 or 5, wherein the light source is disposed on the circuit assembly, and the auxiliary heat sink at least covers a portion of the gap between the module housing and the heat dissipation base.

9. A vehicle light, characterized in that, Includes the vehicle headlight module, wiring harness, and connector as described in claim 8; one end of the wiring harness is connected to the connector, the wiring harness and the circuit assembly are located on both sides of the auxiliary heat sink with the clearance opening, and the connector passes through the clearance opening and is plugged into the electrical connection interface.

10. A vehicle, characterized in that, Includes the vehicle light module as described in claim 8 or the vehicle light as described in claim 9.

Images