Optical module, vehicle lamp and vehicle

Abstract

This application discloses an optical module, a vehicle headlight, and a vehicle. The optical module includes: a heat sink comprising a heat dissipation plate and a fan; the heat dissipation plate having a first air inlet extending through its thickness direction; the fan being disposed on one side of the heat dissipation plate along the thickness direction; a lamp plate disposed on the side of the heat dissipation plate away from the fan, and the lamp plate having a first through hole corresponding to the first air inlet; and a lens assembly disposed on the side of the lamp plate away from the heat dissipation plate and connected to the heat dissipation plate, wherein portions of two sidewalls of the lens assembly along the height direction are spaced apart from the lamp plate to form air outlets, and the projection of the first air inlet along the thickness direction is located inside the projection of the lens assembly. According to the embodiment of this application, the optical module allows for the outflow of internal hot air, effectively reducing the internal temperature.

Description

Technical Field

[0001] This application relates to the field of vehicles, and in particular to an optical module, a headlight, and a vehicle. Background Technology

[0002] In related technologies, as consumers increasingly demand sophisticated and aesthetically pleasing designs, headlight shapes are becoming flatter, leading to greater requirements for internal space and more stringent heat dissipation conditions for the modules. Existing headlight modules generally use fans to circulate air over the radiator surface for cooling, achieving a certain level of heat dissipation. However, because the fan airflow cannot be effectively introduced into the module, it only cools the radiator surface, making rapid cooling of the module's internal components difficult and resulting in low overall cooling efficiency. Under prolonged high-load operation, heat buildup inside the module can affect performance and lifespan. Utility Model Content

[0003] This application aims to at least solve one of the technical problems existing in the prior art. To this end, one object of this application is to provide an optical module that can allow hot air to flow out, effectively reducing the internal temperature.

[0004] This application also proposes a vehicle lamp having the aforementioned optical module.

[0005] This application also proposes a vehicle having the aforementioned headlights.

[0006] An optical module according to an embodiment of this application includes: a heat sink, the heat sink including a heat sink plate and a fan, the heat sink plate forming a first air inlet extending through it along its thickness direction, the fan being disposed on one side of the heat sink plate along the thickness direction; a lamp plate, the lamp plate being disposed on the side of the heat sink plate away from the fan, and the lamp plate forming a first through hole corresponding to the first air inlet; and a lens assembly, the lens assembly being disposed on the side of the lamp plate away from the heat sink plate and connected to the heat sink plate, portions of two sidewalls of the lens assembly along the height direction being spaced apart from the lamp plate to form air outlets, and the projection of the first air inlet along the thickness direction being located inside the projection of the lens assembly.

[0007] According to an embodiment of this application, the optical module has a heat sink and a lamp plate. The heat sink includes a heat dissipation plate and a fan. The heat dissipation plate and the lamp plate are respectively provided with a through-hole and a corresponding first air inlet and a first through hole, so that the fan can guide the airflow through the first air inlet and the first through hole to the space between the lens assembly and the lamp plate and exchange heat with the internal air. The hot air after heat exchange can be guided to the outside, thereby achieving cooling between the lens assembly and the lamp plate, realizing heat dissipation inside the optical module, and thus improving the heat dissipation efficiency of the optical module.

[0008] In some embodiments of this application, there are multiple first air inlets, which are spaced apart along the height direction and / or width direction. There are also multiple first through holes, which correspond one-to-one with the multiple first air inlets.

[0009] In some embodiments of this application, the heat sink is formed with a second air inlet that extends through it along its thickness direction, and the lamp plate is formed with a second through hole that corresponds to the second air inlet. Along the thickness direction, the projection of the second air inlet is located outside the projection of the lens assembly.

[0010] In some embodiments of this application, the second air inlet is located on top of the first air inlet.

[0011] In some embodiments of this application, a heat sink is further formed on the side of the heat sink facing the fan, and the heat sink extends in a direction away from the heat sink.

[0012] In some embodiments of this application, the heat sink includes a first segment and a second segment connected in sequence, the first segment and the second segment protruding toward both sides in the width direction, respectively.

[0013] In some embodiments of this application, there are multiple heat sinks, and the multiple heat sinks are spaced apart along the height direction and the width direction.

[0014] In some embodiments of this application, a baffle is formed on the side of the heat sink facing the fan, and the baffle is spaced apart from the heat sink to form a ventilation channel, and the first air inlet is correspondingly arranged with the ventilation channel.

[0015] The following describes the vehicle lights according to embodiments of this application.

[0016] The vehicle lamp according to the embodiments of this application is provided with the optical module of the above embodiments. Since the vehicle lamp of the embodiments of this application is provided with the optical module of the above embodiments, the optical module of the vehicle lamp has a heat sink and a lamp plate. The heat sink includes a heat sink plate and a fan. The heat sink plate and the lamp plate are respectively provided with a through and corresponding first air inlet and a first through hole, so that the fan can guide the airflow through the first air inlet and the first through hole to the space between the lens assembly and the lamp plate and exchange heat with the internal air. The hot air after heat exchange can be guided to the outside, thereby achieving cooling between the lens assembly and the lamp plate, realizing heat dissipation inside the optical module, and improving the heat dissipation efficiency of the vehicle lamp.

[0017] The vehicle of an embodiment of this application is described below.

[0018] The vehicle according to the embodiments of this application is equipped with the headlights of the above embodiments. Since the vehicle according to the embodiments of this application is equipped with the headlights of the above embodiments, the headlights of the vehicle have an optical module. The optical module has a heat sink and a lamp plate. The heat sink includes a heat sink plate and a fan. The heat sink plate and the lamp plate are respectively provided with a through and corresponding first air inlet and a first through hole, so that the fan can guide the airflow through the first air inlet and the first through hole to the space between the lens assembly and the lamp plate and exchange heat with the internal air. The hot air after heat exchange can be guided to the outside, thereby achieving cooling between the lens assembly and the lamp plate, realizing heat dissipation inside the optical module, and thus improving the heat dissipation efficiency of the headlight.

[0019] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0020] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1 This is a schematic diagram of the structure of an optical module according to an embodiment of this application; Figure 2 yes Figure 1 A cross-sectional schematic diagram of the optical module; Figure 3 yes Figure 1 Schematic diagram of the structure of the heat sink and lamp plate; Figure 4 yes Figure 3 Rear view of the heat sink.

[0021] Figure label: 10. Optical module; 11. Radiator; 111. Heat sink; 112. Fan; 113. First air inlet; 114. Second air inlet; 115. Heat sink; 1151. First section; 1152. Second section; 116. Wind deflector; 117. Ventilation duct; 12. Lamp panel; 121. First through hole; 122. Second through hole; 13. Lens assembly; 131. Air outlet. Detailed Implementation

[0022] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0023] The following is for reference. Figures 1-4 The optical module 10 according to an embodiment of the present application is described. The optical module 10 includes a heat sink 11, a lamp plate 12, and a lens assembly 13.

[0024] The heat sink 11 includes a heat sink 111 and a fan 112. The heat sink 111 has a first air inlet 113 extending through it along its thickness direction. The fan 112 is located on one side of the heat sink 111 along its thickness direction. The lamp plate 12 is located on the side of the heat sink 111 away from the fan 112, and the lamp plate 12 has a first through hole 121 corresponding to the first air inlet 113. The lens assembly 13 is located on the side of the lamp plate 12 away from the heat sink 111 and is connected to the heat sink 111. The two sidewall portions of the lens assembly 13 along its height direction are spaced apart from the lamp plate 12 to form an air outlet 131. Along the thickness direction, the projection of the first air inlet 113 is located inside the projection of the lens assembly 13.

[0025] Currently, automotive lighting modules generally use fans to circulate air over the surface of the radiator for heat dissipation, achieving a certain cooling effect. However, because the fan air cannot be effectively introduced into the module, it can only dissipate heat on the radiator surface, making it difficult to achieve rapid cooling of the module's internal components, resulting in low overall cooling efficiency. Under scenarios such as prolonged high-load operation of automotive lights, heat accumulation inside the module can easily affect its performance and lifespan.

[0026] In response, this application provides an optical module 10 that allows hot air to escape, effectively reducing the internal temperature.

[0027] Specifically, the optical module 10 may include a heat sink 11, a lamp plate 12, and a lens assembly 13. The heat sink 11 may include a heat sink 111 and a fan 112. The heat sink 111 may have a first air inlet 113 extending through it along its thickness direction. The fan 112 may be located on one side of the heat sink 111 along its thickness direction and may direct airflow to the first air inlet 113. The lamp plate 12 may be located on the side of the heat sink 111 away from the fan 112. Optionally, the lamp plate 12 and the heat sink 111 may be detachably connected by screws or bolts, or the lamp plate 12 and the heat sink 11 may be detachably connected by snap-fit ​​or plug-in.

[0028] Furthermore, the lamp panel 12 can have a through-hole 121, which can correspond to the first air inlet 113, thereby ensuring that the fan 112 can guide airflow to the first air inlet 113 and the first through-hole 121. The lens assembly 13 can be disposed on the side of the lamp panel 12 away from the heat sink 111, and the lens assembly 13 can be connected to the heat sink 111. The lens assembly 13 extends along the height direction (e.g., Figure 1The two sidewall portions (in the Z direction shown) can be spaced apart from the lamp panel 12 to form air outlets 131. It is understood that the fan 112 can guide airflow through the first air inlet 113 and the first through hole 121 to the space between the lens assembly 13 and the lamp panel 12, and carry away internal heat through the air outlets 131, thereby directly cooling the interior of the optical film assembly. Along the thickness direction, the projection of the first air inlet 113 is located inside the lens of the lens assembly 13. It is understood that in the direction perpendicular to the thickness direction (e.g., ... Figure 1 The plane (in the X direction shown) can be the thickness direction of the heat sink 111. The projection of the first air inlet 113 can be located inside the lens of the lens assembly 13. By setting the projection of the first air inlet 113 inside the lens of the lens assembly 13, the airflow can first flow between the lens assembly 13 and the lamp board 12, that is, inside the lens assembly 13, to ensure that the low-temperature airflow can exchange heat and then flow out through the air outlet 131, thereby cooling the optical module 10.

[0029] In short, the optical module 10 of this application embodiment has a heat sink 11 and a lamp plate 12. The heat sink 11 includes a heat sink plate 111 and a fan 112. The heat sink plate 111 and the lamp plate 12 are respectively provided with a through and corresponding first air inlet 113 and a first through hole 121, so that the fan 112 can guide the airflow through the first air inlet 113 and the first through hole 121 to the space between the lens assembly 13 and the lamp plate 12 and exchange heat with the internal air. The hot air after heat exchange can be guided to the outside, thereby achieving cooling between the lens assembly 13 and the lamp plate 12, realizing heat dissipation inside the optical module 10, and thus improving the heat dissipation efficiency of the optical module 10.

[0030] like Figure 3 and Figure 4 As shown, in some embodiments of this application, the number of first air inlets 113 can be multiple, and the multiple first air inlets 113 can be along the height direction or the width direction (e.g., Figure 1 The first air inlets 113 can be spaced apart in the Y direction as shown in the diagram. Alternatively, the first air inlets 113 can be spaced apart in the height and width directions. The number of first through holes 121 can also be multiple. The multiple first through holes 121 can be set one-to-one with the multiple first air inlets 113. By setting multiple first air inlets 113 and multiple first through holes 121, the airflow entering between the lens assembly 13 and the lamp panel 12 can be increased, which further improves the heat dissipation effect of the lens assembly 13 and the lamp panel 12 and improves the heat dissipation efficiency of the lens assembly 13 and the lamp panel 12.

[0031] like Figure 2 and Figure 3As shown, in some embodiments of this application, the heat sink 111 may have a second air inlet 114 extending through it along its thickness direction, and the lamp plate 12 may have a second through hole 122 extending through it. The second through hole 122 may be correspondingly arranged with the second air inlet 114. Along the thickness direction, the projection of the second air inlet 114 is located outside the projection of the lens assembly 13. It can be understood that in a plane perpendicular to the thickness direction, the projection of the second air inlet 114 does not coincide with the projection of the lens assembly 13. By setting the projection of the second air inlet 114 on the lens assembly... The projection of component 13 outside can ensure that when airflow blows to the outer periphery of lens assembly 13 through the second air inlet 114 and the second through hole 122, the increased airflow velocity will cause the surrounding air pressure to decrease, that is, the surrounding air pressure is less than the air pressure between lens assembly 13 and lamp panel 12. Under the influence of the pressure difference, the air inside lens assembly 13 will flow to the outside, so as to facilitate air flow, accelerate the outflow of internal hot air, thereby reducing the internal temperature. Furthermore, by setting the second air inlet 114, the hot air flow can be further promoted, which improves the cooling efficiency.

[0032] like Figure 2 and Figure 3 As shown, in some embodiments of this application, the second air inlet 114 may be located on top of the first air inlet 113. It is understood that the second air inlet 114 may be located on the outer side of the top wall of the lens assembly 13. The hot air between the lens assembly 13 and the lamp panel 12 flows towards the top under the influence of convection. When the hot air flows to the second air inlet 114, it can flow towards the outside under the influence of pressure difference, further increasing the outflow rate of the internal hot air and reducing the internal temperature.

[0033] like Figure 4 As shown in some embodiments of this application, a heat sink 115 can be formed on the side of the heat sink 111 facing the fan 112. The heat sink 115 can extend in a direction away from the heat sink 111. The heat sink 115 can absorb the heat of the heat sink 111, and the fan 112 can guide the airflow to the heat sink 115 and cool the heat sink 115, thereby cooling the heat sink 111. Furthermore, there can be multiple heat sinks 115, which can be spaced apart along the height and width directions. A channel can be formed between two heat sinks 115 spaced apart in the width direction, and the airflow can flow in the channel to cool the heat sink 115, that is, to cool the lamp panel 12. The airflow blockage between two heat sinks 115 spaced apart in the height direction can be avoided, and the airflow in the multiple channels can be made to flow evenly, thereby improving the efficiency and heat exchange rate of the fan 112.

[0034] like Figure 4As shown, in some embodiments of this application, the heat sink 115 includes a first segment 1151 and a second segment 1152 connected in sequence. The first segment 1151 and the second segment 1152 protrude toward both sides in the width direction, so that the heat sink 115 can be arranged in an arc shape. This arrangement can increase the heat dissipation area. When the fan 112 rotates to make the airflow flow, the airflow can flow in a rotational motion. When the airflow is guided to the heat sink 115, the arc structure of the heat sink 115 can reduce the angle with the airflow direction, reduce the resistance to the airflow, make the airflow smoother, and thus improve the heat dissipation efficiency of the optical module 10.

[0035] like Figure 4 As shown, in some embodiments of this application, a baffle plate 116 may be formed on the side of the heat sink 111 facing the fan 112. The baffle plate 116 and the heat sink 115 are spaced apart to form a ventilation channel 117. The first air inlet 113 can be correspondingly arranged with the ventilation channel 117. When the airflow flows in the ventilation channel 117, it can directly enter the first air inlet 113. Therefore, the baffle plate 116 can guide the airflow, prevent the airflow from flowing to the outside, and enable the airflow to enter the first air inlet 113 more quickly, thereby achieving heat dissipation for the lens assembly 13 and the lamp panel 12.

[0036] The following describes the vehicle lights according to embodiments of this application.

[0037] The vehicle lamp according to the embodiment of this application is provided with the optical module 10 of the above embodiment. Since the vehicle lamp of the embodiment of this application is provided with the optical module 10 of the above embodiment, the optical module 10 of the vehicle lamp has a heat sink 11 and a lamp plate 12. The heat sink 11 includes a heat sink 111 and a fan 112. The heat sink 111 and the lamp plate 12 are respectively provided with a through and corresponding first air inlet 113 and a first through hole 121, so that the fan 112 can guide the airflow through the first air inlet 113 and the first through hole 121 to the space between the lens assembly 13 and the lamp plate 12 and exchange heat with the internal air. The hot air after heat exchange can be guided to the outside, thereby achieving cooling between the lens assembly 13 and the lamp plate 12, realizing heat dissipation inside the optical module 10, and improving the heat dissipation efficiency of the vehicle lamp.

[0038] The vehicle of an embodiment of this application is described below.

[0039] The vehicle according to the embodiments of this application is equipped with the headlights of the above embodiments. Since the vehicle according to the embodiments of this application is equipped with the headlights of the above embodiments, the headlights of the vehicle have an optical module 10. The optical module 10 has a heat sink 11 and a lamp plate 12. The heat sink 11 includes a heat sink 111 and a fan 112. The heat sink 111 and the lamp plate 12 are respectively provided with a through and corresponding first air inlet 113 and a first through hole 121, so that the fan 112 can guide the airflow through the first air inlet 113 and the first through hole 121 to the space between the lens assembly 13 and the lamp plate 12 and exchange heat with the internal air. The hot air after heat exchange can be guided to the outside, thereby achieving cooling between the lens assembly 13 and the lamp plate 12, realizing heat dissipation inside the optical module 10, and thus improving the heat dissipation efficiency of the headlight.

[0040] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0041] In the description of this application, "first feature" and "second feature" may include one or more of the features.

[0042] In the description of this application, "multiple" means two or more.

[0043] In the description of this application, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or the first and second features being in contact through another feature between them.

[0044] In the description of this application, the terms "above," "over," and "on top" for the first feature and the second feature include the first feature being directly above or diagonally above the second feature, or simply indicate that the first feature is at a higher horizontal level than the second feature.

[0045] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0046] Although embodiments of this application have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the claims and their equivalents.

Claims

1. An optical module characterized by comprising: include: The radiator (11) includes a heat sink (111) and a fan (112). The heat sink (111) has a first air inlet (113) that extends through it along its thickness direction. The fan (112) is disposed on one side of the heat sink (111) along the thickness direction. The lamp plate (12) is disposed on the side of the heat sink (111) away from the fan (112), and the lamp plate (12) has a first through hole (121) corresponding to the first air inlet (113). Lens assembly (13) is disposed on the side of the lamp plate (12) away from the heat sink (111) and connected to the heat sink (111). The two sidewall portions of the lens assembly (13) along the height direction are spaced apart from the lamp plate (12) to form an air outlet (131). Along the thickness direction, the projection of the first air inlet (113) is located inside the projection of the lens assembly (13).

2. The optical module according to claim 1, characterized in that, There are multiple first air inlets (113), and the multiple first air inlets (113) are spaced apart along the height direction and / or width direction. There are multiple first through holes (121), and the multiple first through holes (121) are arranged one-to-one with the multiple first air inlets (113).

3. The optical module according to claim 1, characterized in that, The heat sink (111) has a second air inlet (114) that extends through it along its thickness direction, and the lamp plate (12) has a second through hole (122) that corresponds to the second air inlet (114). Along the thickness direction, the projection of the second air inlet (114) is located outside the projection of the lens assembly (13).

4. The optical module according to claim 3, characterized in that, The second air inlet (114) is located on top of the first air inlet (113).

5. The optical module according to claim 3, characterized in that, The heat sink (111) also has a heat sink fin (115) formed on the side facing the fan (112), and the heat sink fin (115) extends in a direction away from the heat sink (111).

6. The optical module according to claim 5, characterized in that, The heat sink (115) includes a first segment (1151) and a second segment (1152) connected in sequence, with the first segment (1151) and the second segment (1152) protruding toward both sides in the width direction, respectively.

7. The optical module according to claim 6, characterized in that, There are multiple heat sinks (115), and the multiple heat sinks (115) are spaced apart along the height direction and the width direction.

8. The optical module according to claim 7, characterized in that, A baffle plate (116) is also formed on the side of the heat sink (111) facing the fan (112). The baffle plate (116) and the heat sink (115) are spaced apart to form a ventilation channel (117). The first air inlet (113) is correspondingly arranged with the ventilation channel (117).

9. A vehicle light, characterized in that, Includes the optical module as described in any one of claims 1-8.

10. A vehicle, characterized in that, Including the vehicle lights as described in claim 9.

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