Optical module and vehicle lamp

Abstract

The utility model discloses an optical module and a vehicle lamp, and the optical module comprises a high beam adjusting part which is provided with at least one high beam adjusting surface and is configured to adjust and emit high beam rays towards a light emitting side; the low-beam adjusting part is provided with at least one low-beam adjusting surface and is configured to adjust emergent low-beam rays towards the light emitting side; the high beam adjusting part and the low beam adjusting part are located on the two sides of the boundary datum plane respectively. The first heat dissipation part is arranged on the side, away from the boundary reference plane, of the high beam adjusting part and used for installing a high beam light source; the third heat dissipation part is arranged on the side, away from the boundary datum plane, of the low-beam adjusting part and used for installing a low-beam light source. The heat dissipation part can dissipate heat from multiple angles of the dimming part, the dissipated heat is dispersed in different directions of the peripheral side, the heat dissipation efficiency is improved, the heat dissipated by the dimming part can be discharged in time, and the service life is prolonged. And the heat dissipation part also has a protection effect on the dimming part.

Description

Technical Field

[0001] This application relates to the field of vehicle lighting technology, and more particularly to an optical module and vehicle lamp. Background Technology

[0002] In automotive lighting systems, as the design requirements for headlights increase, the power of the lamps also needs to be increased accordingly. Heat dissipation has become a key factor affecting the performance and lifespan of headlights. Traditional heat dissipation solutions often cannot meet the heat dissipation needs of high-power lamps, resulting in excessively high lamp temperatures, affecting light quality, shortening bulb life, and potentially causing safety hazards.

[0003] Therefore, improvements to existing technologies are necessary. Utility Model Content

[0004] This application aims to solve at least one of the technical problems existing in the prior art, and to provide an optical module and vehicle light.

[0005] According to one aspect of this application, an optical module is provided, comprising:

[0006] A dimming module includes a high beam adjustment section and a low beam adjustment section located on both sides of a dividing reference plane; the high beam adjustment section has at least one high beam adjustment surface and is configured to adjust the emitted high beam towards the light-emitting side; the low beam adjustment section has at least one low beam adjustment surface and is configured to adjust the emitted low beam towards the light-emitting side.

[0007] The first heat dissipation part is located on the side of the high beam adjustment part away from the dividing reference plane, and is used to install the high beam light source;

[0008] The third heat dissipation unit is located on the side of the low beam adjustment unit away from the dividing reference surface, and is used to install the low beam light source.

[0009] In one embodiment, a second heat dissipation part is further included, which is arranged at an angle to the first heat dissipation part, and the angle is not equal to 180°; the third heat dissipation part is disposed on the side of the second heat dissipation part away from the first heat dissipation part.

[0010] In one embodiment, the module further includes a fan disposed on the backlight side of the dimming module and configured to blow air onto the first heat sink and / or the second heat sink and / or the third heat sink and / or the accommodating space.

[0011] In one embodiment, the first heat dissipation portion has spaced-apart first fins, a first flow channel is formed between adjacent first fins, and the first flow channel extends along the air outlet direction of the fan; with a reference surface λ perpendicular to the light outlet direction of the dimming module as the projection surface, the orthographic projection of the first fins on the projection surface at least partially overlaps with the orthographic projection of the fan on the projection surface.

[0012] In one embodiment, the first heat dissipation portion further has a fourth fin, which is disposed at the end of the first heat dissipation portion away from the second heat dissipation portion.

[0013] In one embodiment, the fan is disposed on the side of the second heat dissipation part away from the dimming module, and the portion of the second heat dissipation part opposite to the fan is provided with a ventilation duct; with a reference surface λ perpendicular to the light output direction of the dimming module as the projection surface, the orthographic projection of the third heat dissipation part on the projection surface and the orthographic projection of the ventilation duct on the projection surface at least partially overlap.

[0014] In one embodiment, the third heat dissipation portion has spaced third fins, a third flow channel is formed between adjacent third fins, and the third flow channel extends along the air outlet direction of the fan; the orthographic projection of the third fins on the projection plane and the orthographic projection of the ventilation channel on the projection plane at least partially overlap.

[0015] In one embodiment, a pre-positioning structure is provided between the fan and the second heat dissipation part. The pre-positioning structure includes a positioning groove and a positioning protrusion, and the positioning protrusion is inserted into the positioning groove. The positioning groove is disposed in one of the fan and the second heat dissipation part, and the positioning protrusion is disposed in the other of the fan and the second heat dissipation part. The maximum distance between the periphery of the positioning protrusion and the inner peripheral wall of the positioning groove is d, which satisfies: 0.4 mm ≤ d ≤ 2 mm.

[0016] In one embodiment, the device further includes a first side block and a second side block, wherein the first side block is disposed on the left and right sides of the first heat dissipation part, and the second side block is disposed on the left and right sides of the third heat dissipation part; the first side block and the second side block abut against each other to block the left and right sides of the dimming module.

[0017] According to another aspect of this application, a vehicle lamp is provided, including any of the optical modules described above.

[0018] The beneficial effects of this application are as follows: A receiving space is formed by the first heat dissipation part and the third heat dissipation part being arranged opposite each other. The high beam adjustment part and the low beam adjustment part are arranged in the receiving space. The heat dissipation component can dissipate heat from multiple angles. At the same time, the third heat dissipation part and the first heat dissipation part are arranged opposite to each other, that is, the heat dissipated by the third heat dissipation part and the first heat dissipation part is dissipated in opposite directions. The dissipated heat is dispersed in different directions around the dimming module, which improves the heat dissipation efficiency of the heat dissipation component. It can dissipate the heat dissipated by the high beam adjustment part and the low beam adjustment part in a timely manner, which is conducive to improving the overall service life. Moreover, the heat dissipation component has a protective function and can prevent the high beam adjustment part and the low beam adjustment part from being interfered with by external factors. Attached Figure Description

[0019] The technical solution and other beneficial effects of this application will become apparent from the following detailed description of specific embodiments in conjunction with the accompanying drawings.

[0020] Figure 1 This is a schematic diagram of the structure of an optical module provided in an embodiment of this application.

[0021] Figure 2 This is a schematic diagram of the light output of an optical module provided in an embodiment of this application.

[0022] Figure 3 This is a schematic diagram of the heat dissipation component provided in an embodiment of this application.

[0023] Figure 4 yes Figure 3 Enlarged view of point A in the middle.

[0024] Figure 5 yes Figure 3 The right view.

[0025] Figure 6 yes Figure 3 Exploded view.

[0026] Figure 7 This is a schematic diagram of a first heat dissipation part and a second heat dissipation part provided in an embodiment of this application.

[0027] In the picture:

[0028] 1. Boundary reference plane;

[0029] 3. Low beam adjustment unit; 3-1. Low beam adjustment surface; 3-2. Low beam source;

[0030] 4. High beam adjustment unit; 4-1. High beam adjustment surface; 4-2. High beam light source;

[0031] a. Positioning pin;

[0032] 11. First heat dissipation section; 111. First fin; 112. First flow channel; 113. Fourth fin; 12. Second heat dissipation section; 121. Second fin; 122. Second flow channel; 123. Ventilation duct; 13. First side baffle; 14. First mounting section;

[0033] 21. Third heat dissipation section; 211. Third fin; 212. Third flow channel; 22. Second side baffle; 23. Second mounting section;

[0034] 30. Storage space;

[0035] 40. Fan;

[0036] 50. Pre-positioning structure; 51. Positioning groove; 52. Positioning protrusion. Detailed Implementation

[0037] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0038] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" 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, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0039] The heat dissipation components and vehicle lights of this application will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0040] In existing technologies, heat dissipation solutions often fail to meet the heat dissipation requirements of high-power lamps, resulting in excessively high lamp temperatures, which affect light quality, shorten bulb life, and may even cause safety hazards.

[0041] To address the aforementioned technical problems, this application provides an optical module configured to dissipate heat from a dimming module. The heat dissipation assembly includes a first heat dissipation section and a third heat dissipation section disposed opposite to each other. A receiving space is formed between the first heat dissipation section and the third heat dissipation section. The dimming module includes a high beam adjustment section and a low beam adjustment section, and the dimming module is disposed within the receiving space. This will be described in detail below.

[0042] refer to Figures 1-2 This application provides an optical module, including:

[0043] High beam adjustment unit 4 is configured to adjust the emitted high beam towards the light-emitting side;

[0044] The low beam adjustment unit 3 is configured to adjust the emitted low beam towards the light-emitting side, and the high beam adjustment unit 4 is connected to the low beam adjustment unit 3 to form a dimming module;

[0045] The high beam light source 4-2 is positioned on the high beam adjustment surface 4-1 at a location away from the dividing reference surface;

[0046] The low beam light source 3-2 is positioned on the low beam adjustment surface 3-1 at a location away from the dividing reference surface;

[0047] The high beam adjustment unit 4 emits high beam rays that work in conjunction with a projection lens and other structures to form a high beam pattern; the low beam adjustment unit 3 emits high beam rays that work in conjunction with a projection lens and other structures to form a low beam pattern.

[0048] In this application, the high beam adjustment unit 4 is connected to the low beam adjustment unit 3, resulting in fewer parts and a more compact and concise circuit layout, saving layout space. The fewer parts and molds also reduce production costs and maintenance expenses. The compact structure reduces the difficulty of layout within the lamp and the weight of the entire lamp, which is beneficial to improving the reliability of the lamp. At the same time, the fewer parts and fewer assembly steps are beneficial to reducing system tolerances and optical errors, and the lighting beam shape will not be deformed or deviated.

[0049] The high beam light source 4-2 and the low beam light source 3-2 can be respectively configured at the root of the high beam adjustment surface 4-1 and the low beam adjustment surface 3-1 on opposite sides. The assembled high beam light source 4-2 and the low beam light source 3-2 are spaced apart and separated from each other, thus dispersing the heat field when the high and low beam light sources are lit simultaneously. Because the assembled high beam light source 4-2 and the low beam light source 3-2 are spaced apart and separated from each other, the light source circuit board and the corresponding heat sink are also spaced apart on the periphery of the dimming module, which can significantly increase the space for heat sink arrangement.

[0050] The design of this application allows the high beam light source 4-2 and the low beam light source 3-2 to be spaced apart and separated from each other, so that the heat field and heat are dispersed when the high and low beam light sources are lit at the same time. Moreover, the heat dissipation structure for the high and low beam function is not set between the two light sources, thus changing the original sharing of a heat sink for high and low beams to the independent and spaced high and low beam heat sinks. This not only significantly increases the heat dissipation space of the heat sink and improves the heat dissipation efficiency, but also allows the space around the module to be used to add heat sink fins or expand the heat dissipation module to further improve the module's heat dissipation capacity.

[0051] Furthermore, existing technologies use a single light source to form both low-beam and high-beam patterns, with a light shield creating a cutoff line for the low-beam. This completely separates the low-beam and high-beam areas, resulting in poor road illumination performance. In this application, by using two light sources, one for low-beam and one for high-beam, respectively, a shared light source is eliminated. Traditional light shields are also unnecessary for switching between low and high beams. Even when the high-beam light source 4-2 is turned on alone, some energy remains below the cutoff line, creating a halo effect towards the low-beam area, effectively improving road illumination. It's worth noting that the cutoff line is the line of light and shadow formed above the low-beam area when the light shield creates the low-beam, separating the low-beam and high-beam areas.

[0052] It is worth noting that the specific form of the light source in this application includes, but is not limited to, LED beads, LED boards containing circuit boards, etc. For example... Figure 1 The mid-to-high beam light source 4-2 and the low beam light source 3-2 are both in the form of lamp panels. The lamp panels are assembled and fixed to the low beam adjustment unit 3 and the high beam adjustment unit 4 by positioning pins a.

[0053] The positioning pin a on the low beam adjustment part 3 can be further embedded in the third heat dissipation part 21, and the positioning pin a on the high beam adjustment part 4 can be further embedded in the first heat dissipation part 11, so as to realize the positioning and engagement of the adjustment part and the heat dissipation part with the pin hole. After the positioning and engagement, it can be connected and fixed by fasteners such as screws.

[0054] In some embodiments, a positioning latching structure is further included, the positioning latching structure including a positioning slot and a positioning block, the positioning block being latched into the positioning slot;

[0055] The positioning slot is disposed in one of the first heat dissipation part 11 and the high beam adjustment part 4, and the positioning block is disposed in the other of the first heat dissipation part 11 and the high beam adjustment part 4; and / or, the positioning slot is disposed in one of the third heat dissipation part 21 and the low beam adjustment part 3, and the positioning block is disposed in the other of the third heat dissipation part 21 and the low beam adjustment part 3. Based on pin hole positioning, the addition of a positioning snap-fit ​​structure, and the combination of multiple positioning structures, helps to reduce assembly errors between components.

[0056] refer to Figures 1-2 In some embodiments, the high beam adjustment unit 4 has at least one high beam adjustment surface 4-1, configured to adjust the emitted high beam towards the light-emitting side; the low beam adjustment unit 3 has at least one low beam adjustment surface 3-1, configured to adjust the emitted low beam towards the light-emitting side.

[0057] Specifically, in the light emission direction along the high beam adjustment surface 4-1, the distance L1 between the high beam adjustment surface 4-1 and the dividing reference surface 1 tends to decrease; in the light emission direction along the low beam adjustment surface 3-1, the distance L2 between the low beam adjustment surface 3-1 and the dividing reference surface 1 tends to decrease.

[0058] Specifically, the high beam adjustment unit 4 and the low beam adjustment unit 3 are located on opposite sides of the dividing reference plane 1. In the light emission direction along the high beam adjustment unit 4-1, the distance L1 between the high beam adjustment unit 4-1 and the dividing reference plane 1 is designed to gradually decrease; in the light emission direction along the low beam adjustment unit 3-1, the distance L2 between the low beam adjustment unit 3-1 and the dividing reference plane 1 is designed to gradually decrease. The high beam and low beam adjustment units 3 are separated by the reference plane. When the high beam adjustment unit 4-1 and the low beam adjustment unit 3-1 are assembled into an optical module, in order to allow light to enter the first lens, the high beam light source 4-2 needs to be placed on the part of the high beam adjustment unit 4-1 away from the reference plane, and the low beam light source 3-2 needs to be placed on the part of the low beam adjustment unit 3-1 away from the reference plane. The assembled high beam light source 4-2 and the low beam light source 3-2 are spaced apart and separated from each other, and the heat field is dispersed when the high beam and low beam light sources are lit at the same time.

[0059] Since the high beam light source 4-2 and the low beam light source 3-2 are spaced apart and separated from each other after assembly, and the light source circuit board and the corresponding heat sink are also spaced apart on the periphery of the dimming module, the space for heat sink arrangement can be significantly increased and the heat dissipation efficiency can be improved.

[0060] refer to Figure 2 In some embodiments, the projections of the high beam adjustment surface 4-1 and the low beam adjustment surface 3-1 on the dividing reference surface 1 at least partially overlap; and along the main light output direction of the dimming module, the distance L3 between the high beam adjustment surface 4-1 and the low beam adjustment surface 3-1 tends to decrease.

[0061] Specifically, the projections of the high beam adjustment surface 4-1 and the low beam adjustment surface 3-1 onto the dividing reference surface 1 at least partially overlap, which helps to reduce the overall size of the dimming module in the light output direction, making the layout more compact and saving space. The compact structure also reduces the difficulty of layout within the lamp and helps to improve the reliability of the lamp. At the same time, the compact structure helps to reduce system tolerances and optical errors.

[0062] See Figure 3 , Figure 5 as well as Figure 6 The heat dissipation component is configured to dissipate the heat of the dimming module. The heat dissipation component includes a third heat dissipation part 21 and a first heat dissipation part 11 disposed opposite to each other. An accommodating space 30 is formed between the first heat dissipation part 11 and the third heat dissipation part 21, and the dimming module is disposed in the accommodating space 30.

[0063] A receiving space 30 is formed by the first heat dissipation part 11 and the third heat dissipation part 21 being arranged opposite each other. The dimming module is arranged in the receiving space 30. The heat dissipation component can dissipate heat from the dimming module from multiple angles. At the same time, the third heat dissipation part 21 is arranged opposite to the first heat dissipation part 11, that is, the heat dissipated by the third heat dissipation part 21 and the first heat dissipation part 11 is dissipated in opposite directions. The dissipated heat is dispersed in different directions around the dimming module, which improves the heat dissipation efficiency of the heat dissipation component and can dissipate the heat dissipated by the dimming module in a timely manner, which is conducive to extending the service life of the dimming module.

[0064] It is worth mentioning that the dimming module is set in the accommodating space 30, that is, the heat dissipation component is surrounded by the dimming module. The heat dissipation component has a protective function for the dimming module, which can prevent the dimming module from being interfered with by the outside world. This is conducive to improving the stability of the installation of each optical component in the dimming module, and also conducive to improving the optical effect of the dimming module.

[0065] In some embodiments, the heat dissipation assembly further includes a second heat dissipation part 12, which is arranged at an angle to the first heat dissipation part 11, and the angle is not equal to 180°; a third heat dissipation part 21 is disposed on the side of the second heat dissipation part 12 away from the first heat dissipation part 11, that is, the first heat dissipation part 11, the second heat dissipation part 12 and the third heat dissipation part 21 cooperate to form an accommodating space 30; the third heat dissipation part 21 is disposed opposite to the first heat dissipation part 11 on both sides of the second heat dissipation part 12, that is, the accommodating space 30 formed has an opening, which is disposed on the side opposite to the second heat dissipation part 12, and the light emitted by the dimming module can be emitted from the opening.

[0066] It should be noted that the first heat dissipation part 11 and the second heat dissipation part 12 can be set separately or as one piece. There is no specific limitation here. The choice can be made according to the actual assembly requirements, heat dissipation requirements, etc.

[0067] In some embodiments, the heat dissipation assembly further includes a first side baffle 13 and a second side baffle 22. The first side baffle 13 is disposed on the left and right sides of the first heat dissipation part 11, and the second side baffle 22 is disposed on the left and right sides of the third heat dissipation part 21. The first side baffle 13 and the second side baffle 22 abut against each other to block the left and right sides of the dimming module.

[0068] The first side block 13 abuts against the second side block 22, that is, the first side block 13 and the second side block 22 cooperate with each other to block the left and right sides of the dimming module. That is, the first heat dissipation part 11, the second heat dissipation part 12, the third heat dissipation part 21, the first side block 13 and the second side block 22 cooperate to form a cavity. The dimming module is set in the cavity, and the dimming module is blocked except for the light-emitting side. This can prevent the dimming module from being interfered with by the outside world, and at the same time, it can prevent light leakage from the periphery of the dimming module (the side other than the light-emitting side of the dimming module), thus improving the lighting effect of the dimming module.

[0069] It should be noted that in this embodiment, the left and right sides are as follows: Figure 5 The left and right sides in the field of view, that is, the first side block 13 and the second side block 22, fill the gap between the first heat dissipation part 11 and the third heat dissipation part 21 (the gap formed by the relative arrangement of the first heat dissipation part 11 and the third heat dissipation part 21), thereby achieving the blocking of the side of the dimming module.

[0070] It is worth mentioning that, in some embodiments, a first mounting part 14 may be provided at the end of the first side block 13, and a second mounting part 23 may be provided at the end of the second side block 22. The two mounting parts (the first mounting part 14 and the second mounting part 23) abut against each other and are connected by screws or rivets, which not only blocks the left and right sides of the dimming module, but also connects and fixes the first heat dissipation part 11 and the third heat dissipation part 21, improving the stability of the installation between the components of the heat dissipation assembly, thereby improving the stability of the dimming module (the dimming module is set in the accommodating space 30), which is beneficial to improving the optical effect of the dimming module.

[0071] In some embodiments, the heat dissipation assembly further includes a fan 40 disposed on the backlight side of the dimming module, and the fan 40 is configured to blow air onto the first heat dissipation section 11 and / or the second heat dissipation section 12 and / or the third heat dissipation section 21 and / or the accommodating space 30.

[0072] The heat is carried away by the airflow generated by the fan 40 (the air blown out by the fan 40, the same below), which enables efficient heat dissipation of the heat dissipation component.

[0073] It should be noted that the fan 40 provides cooling for at least one of the first heat dissipation section 11, the second heat dissipation section 12, the third heat dissipation section 21, and the accommodating space 30, and is configured accordingly based on actual cooling requirements.

[0074] In some embodiments, the first heat dissipation part 11 has spaced-apart first fins 111, and a first flow channel 112 is formed between adjacent first fins 111, and the first flow channel 112 extends along the air outlet direction of the fan 40; the second heat dissipation part 12 has spaced-apart second fins 121, and a second flow channel 122 is formed between adjacent second fins 121; each first flow channel 112 communicates with at least one second flow channel 122; the heat dissipation assembly also includes a fan 40, which is disposed on the side of the second heat dissipation part 12 away from the dimming module; with a reference plane λ perpendicular to the light output direction of the dimming module as the projection plane, the orthographic projection of the first fins 111 on the projection plane and the orthographic projection of the fan 40 on the projection plane at least partially overlap.

[0075] In this embodiment, the arrangement of the first fin 111 and the second fin 121 is conducive to improving the heat dissipation efficiency of the first heat dissipation part 11 and the second heat dissipation part 12; at the same time, the airflow generated by the fan 40 (the air blown out by the fan 40, the same below) carries away the heat of the first heat dissipation part 11 and the second heat dissipation part 12, which can achieve efficient heat dissipation of the heat dissipation component.

[0076] Specifically, since the first flow channel 112 is connected to at least one second flow channel 122, the airflow generated by the fan 40 located in the second heat dissipation part 12 (second fin 121) flows through the second flow channel 122 into the first flow channel 112, carrying away the heat in the first flow channel 112 and effectively improving the heat dissipation efficiency; in addition, the orthographic projection of the first fin 111 on the projection surface and the orthographic projection of the fan 40 on the projection surface at least partially overlap, that is, in Figure 3 From the perspective of the first fin 111, there is a lateral overlap between the fan 40 and the first fin 111, which means that the airflow generated by the fan 40 can directly act on the first fin 111, which is beneficial to improving the heat dissipation efficiency of the first heat dissipation part 11.

[0077] It should be noted that the light output direction of the dimming module is as follows: Figure 3 The direction is shown as X.

[0078] In some embodiments, the first heat dissipation portion 11 further includes a fourth fin 113, which is disposed at the end of the first heat dissipation portion 11 away from the second heat dissipation portion 12.

[0079] By setting the fourth fin 113, the heat dissipation area of ​​the first heat dissipation part 11 is increased, which can cover more area of ​​the dimming module and is conducive to improving heat dissipation efficiency.

[0080] In some embodiments, the fourth fin 113 may be arranged in other ways, depending on the shape and heat dissipation requirements of the actual dimming module product, and is not limited to this.

[0081] See Figure 3 as well as Figure 7The fan 40 is located on the side of the second heat dissipation part 12 away from the dimming module, and the part of the second heat dissipation part 12 opposite to the fan 40 is provided with a ventilation channel 123, and the ventilation channel 123 is located between adjacent second fins 121.

[0082] Specifically, the ventilation duct 123 is configured to pass through the space, with its two ends connecting the fan 40 and the accommodating space 30, respectively. In this configuration, the ventilation duct 123 provides a path for the airflow generated by the fan 40, allowing it to pass through the second heat dissipation section 12 and enter the accommodating space 30. This, in turn, dissipates heat from the dimming module within the accommodating space 30. The airflow generated by the fan 40 directly acts on the dimming module, improving its heat dissipation effect and achieving overall active cooling.

[0083] It is worth mentioning that the ventilation channel 123 is arranged between the second fins 121, that is, the arrangement of the ventilation channel 123 will not affect the integrity of the second fins 121, that is, it will not affect the heat dissipation performance of the second fins 121 (the second fins 121 themselves also have a heat dissipation effect), thus ensuring the heat dissipation effect of the second heat dissipation part 12.

[0084] It should be noted that the length, quantity, and shape of ventilation ducts 123 can all be adjusted according to actual needs, for example... Figure 7 As shown, the holes can be multiple circular holes in an array, or elongated square holes, etc. This embodiment does not make any specific limitations.

[0085] In some embodiments, the orthographic projection of the third heat dissipation part 21 on the projection surface and the orthographic projection of the ventilation duct 123 on the projection surface at least partially overlap.

[0086] The orthographic projection of the third heat dissipation unit 21 on the projection surface at least partially overlaps with the orthographic projection of the ventilation duct 123 on the projection surface. The ventilation duct 123 connects the fan 40 and the third heat dissipation unit 21, meaning that the airflow generated by the fan 40 can reach the third heat dissipation unit 21 through the ventilation duct 123. When the fan 40 is running, the airflow generated by the fan 40 dissipates heat from the first heat dissipation unit 11 and the second heat dissipation unit 12, while the airflow acts on the third heat dissipation unit 21 through the ventilation duct 123, achieving active heat dissipation of the third heat dissipation unit 21. This achieves the effect of the fan 40 blowing heat from multiple sources (the first heat dissipation unit 11, the second heat dissipation unit 12, and the third heat dissipation unit 21), improving the overall heat dissipation efficiency and effect.

[0087] In some embodiments, the third heat dissipation part 21 has third fins 211 spaced apart, and a third flow channel 212 is formed between the third fins 211, and the third flow channel 212 extends along the air outlet direction of the fan 40; the orthographic projection of the third fins 211 on the projection surface at least partially overlaps with the orthographic projection of the ventilation channel 123 on the projection surface.

[0088] In this embodiment, the orthographic projection of the third fin 211 on the projection surface and the orthographic projection of the ventilation channel 123 on the projection surface at least partially overlap, that is, the airflow generated by the fan 40 can act on the third fin 211. Since the extension direction of the third channel 212 is the same as the air outlet direction of the fan 40, the airflow generated by the fan 40 can flow into the third channel 212, carrying away the heat of the third channel 212 (third fin 211), thereby improving the overall heat dissipation efficiency and heat dissipation effect.

[0089] It is worth mentioning that in this embodiment, the third fin 211 is disposed on the side opposite to the accommodating space 30. The closer the overall position of the third heat dissipation part 21 is to the first heat dissipation part 11, the larger the area of ​​the airflow from the fan 40 acting on the third fin 211 will be. The overall heat dissipation assembly in the longitudinal direction ( Figure 3 The size (from a visual perspective) will also be smaller, which helps to reduce space occupation and facilitates the arrangement of surrounding headlight components.

[0090] It should be noted that the airflow direction of fan 40 is as follows: Figure 3 The direction is shown as X.

[0091] See Figures 3-4 A pre-positioning structure 50 is provided between the fan 40 and the second heat dissipation part 12. The pre-positioning structure 50 includes a positioning groove 51 and a positioning protrusion 52. The positioning protrusion 52 is inserted into the positioning groove 51. The positioning groove 51 is provided in one of the fan 40 and the second heat dissipation part 12, and the positioning protrusion 52 is provided in the other of the fan 40 and the second heat dissipation part 12. The maximum distance between the periphery of the positioning protrusion 52 and the inner peripheral wall of the positioning groove 51 is d, which satisfies: 0.4 mm ≤ d ≤ 2 mm.

[0092] When the fan 40 is installed on the second heat dissipation part 12, the pre-positioning structure 50 can quickly locate the installation position of the fan 40, improving assembly efficiency; and the pre-positioning structure 50 improves the installation accuracy of the fan 40, which is conducive to improving heat dissipation efficiency (the more accurate the installation position of the fan 40, the more the airflow blown by the fan 40 can meet the design requirements and reach the part that needs heat dissipation).

[0093] In this embodiment, the pre-positioning structure 50 includes a positioning groove 51 and a positioning protrusion 52. To ensure ease of installation and installation accuracy, it is necessary to control the value of the distance d between the positioning groove 51 and the positioning protrusion 52. When the value of d is less than 0.4 mm, the distance between the positioning groove 51 and the positioning protrusion 52 is too small, that is, the positioning protrusion 52 is not easy to be inserted into the positioning groove 51, which increases the assembly difficulty. When the value of d is greater than 2 mm, the distance between the positioning protrusion 52 and the positioning groove 51 is large, which reduces the installation accuracy of the fan 40 and thus reduces the heat dissipation efficiency of the heat dissipation component.

[0094] It should be noted that the cross-section of the positioning protrusion 52 can be a square, a circle, or other patterns. When the cross-section is circular, d is the distance between the positioning protrusion 52 and the positioning groove 51 in the radial direction of the positioning protrusion 52. When the cross-section is square, d is the distance between the opposite surfaces of the positioning protrusion 52 and the positioning groove 51.

[0095] On the other hand, this application also relates to a vehicle light, including any of the aforementioned optical modules or heat dissipation components.

[0096] The technical solution provided in this application aims to form an accommodating space 30 by having the first heat dissipation part 11 and the third heat dissipation part 21 arranged opposite to each other. The dimming module is arranged in the accommodating space 30. The heat dissipation component can dissipate heat from the dimming module from multiple angles. At the same time, the third heat dissipation part 21 and the first heat dissipation part 11 are arranged opposite to each other, that is, the heat dissipated by the third heat dissipation part 21 and the first heat dissipation part 11 is dissipated in opposite directions. The dissipated heat is dispersed in different directions around the dimming module, which improves the heat dissipation efficiency of the heat dissipation component and can dissipate the heat dissipated by the dimming module in a timely manner, which is conducive to improving the service life of the dimming module. Moreover, the heat dissipation component has a protective effect on the dimming module and can prevent the dimming module from being interfered with by external factors.

[0097] In the various embodiments of this application, unless otherwise specified or logically conflicting, the terminology or descriptions between different embodiments are consistent and can be referenced mutually. Technical features in different embodiments can be combined to form new embodiments based on their inherent logical relationships. In this application, "at least one" means one or more, and "more than one" means two or more.

[0098] It is understood that the various numerical designations used in the embodiments of this application are merely for descriptive convenience and are not intended to limit the scope of the embodiments of this application. The order of the process numbers described above does not imply the order of execution; the execution order of each process should be determined by its function and internal logic.

[0099] The heat dissipation components and vehicle lights provided in the embodiments of this application have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this application. The description of the above embodiments is only for the purpose of helping to understand this application and its core ideas. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this application. Therefore, the content of this specification should not be construed as a limitation of this application.

Claims

1. An optical module, characterized by comprising: The optical module comprises: a light adjusting module comprising a high beam adjusting part and a low beam adjusting part respectively located on both sides of a demarcation reference surface; the high beam adjusting part has at least one high beam adjusting surface configured to adjust outgoing high beam light towards a light emitting side; the low beam adjusting part has at least one low beam adjusting surface configured to adjust outgoing low beam light towards the light emitting side; a first heat dissipation part provided on a side of the high beam adjusting part away from the demarcation reference surface and used for mounting a high beam light source; a third heat dissipation part provided on a side of the low beam adjusting part away from the demarcation reference surface and used for mounting a low beam light source.

2. The optical module of claim 1, further comprising a second heat dissipation part arranged at an angle with the first heat dissipation part, and the angle is not equal to 180°; the third heat dissipation part is arranged on a side of the second heat dissipation part away from the first heat dissipation part.

3. The optical module of claim 2, further comprising a fan arranged on a back light side of the light adjusting module, and the fan is configured to blow air towards the first heat dissipation part, and / or the second heat dissipation part, and / or the third heat dissipation part, and / or the accommodating space.

4. The optical module of claim 3, wherein the first heat dissipation part has first fins arranged at intervals, adjacent first fins form first flow channels, and the first flow channels extend along the air outlet direction of the fan; a reference surface λ perpendicular to the light emitting direction of the light adjusting module is taken as a projection surface, the orthographic projection of the first fins on the projection surface at least partially overlaps the orthographic projection of the fan on the projection surface.

5. The optical module of claim 3, wherein the fan is arranged on a side of the second heat dissipation part away from the light adjusting module, and a part of the second heat dissipation part opposite to the fan is provided with a ventilation channel; a reference surface λ perpendicular to the light emitting direction of the light adjusting module is taken as a projection surface, the orthographic projection of the third heat dissipation part on the projection surface at least partially overlaps the orthographic projection of the ventilation channel on the projection surface.

6. The optical module of claim 5, wherein the third heat dissipation part has third fins arranged at intervals, adjacent third fins form third flow channels, and the third flow channels extend along the air outlet direction of the fan; the orthographic projection of the third fins on the projection surface at least partially overlaps the orthographic projection of the ventilation channel on the projection surface.

7. The optical module of claim 3, wherein a predetermined positioning structure is arranged between the fan and the second heat dissipation part, the predetermined positioning structure comprises a positioning groove and a positioning protrusion, and the positioning protrusion is inserted into the positioning groove; the positioning groove is arranged on one of the fan and the second heat dissipation part, and the positioning protrusion is arranged on the other one of the fan and the second heat dissipation part; the maximum distance between the circumferential side of the positioning protrusion and the inner circumferential wall of the positioning groove is d, and 0.4mm≤d≤2mm is satisfied.

8. The optical module of any one of claims 1-7, ​ ​ ​ ​ ​ ​ Further comprising a first side stopper and a second side stopper, the first side stopper is arranged on the left and right sides of the first heat dissipation part, and the second side stopper is arranged on the left and right sides of the third heat dissipation part; The first side stopper and the second side stopper abut each other to block the left and right sides of the light adjusting module.

9. The optical module of claim 1, wherein, The first heat dissipation part and the high beam adjusting part are positioned and matched through a pin hole, and are connected through a screw; and / or, the third heat dissipation part and the low beam adjusting part are positioned and matched through a pin hole, and are connected through a screw.

10. The optical module of claim 1, wherein, Further comprising a positioning clamping structure, the positioning clamping structure comprises a positioning clamping groove and a positioning block, and the positioning block is clamped in the positioning clamping groove; Wherein, the positioning clamping groove is arranged on one of the first heat dissipation part and the high beam adjusting part, and the positioning block is arranged on the other one of the first heat dissipation part and the high beam adjusting part; and / or, the positioning clamping groove is arranged on one of the third heat dissipation part and the low beam adjusting part, and the positioning block is arranged on the other one of the third heat dissipation part and the low beam adjusting part.

11. A vehicle lamp characterized by comprising: The optical module comprises any one of claims 1-10. The optical module comprises any one of claims 1-10.

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