Optical module and vehicle lamp

Abstract

The invention 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] The present application relates to the technical field of vehicle lighting, and particularly to an optical module and a vehicle lamp. Background Art

[0002] In an automotive lighting system, with the improvement of the design requirements for vehicle lamps, the power of the lamps needs to be increased accordingly, and the heat dissipation problem has become a key factor affecting the performance and lifespan of vehicle lamps. Traditional heat dissipation solutions often cannot meet the heat dissipation requirements of high-power lamps, resulting in too high a temperature of the lamps, affecting the light quality, shortening the lifespan of the bulbs, and even potentially causing safety hazards.

[0003] Therefore, it is necessary to improve the existing technology. Summary of the Invention

[0004] The present application aims to at least solve one of the technical problems existing in the prior art, and provides an optical module and a vehicle lamp.

[0005] According to one aspect of the present application, the present application provides an optical module, including:

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

[0007] A first heat dissipation part, which is arranged on the side of the high-beam adjustment part away from the demarcation reference plane and is used for installing a high-beam light source;

[0008] A third heat dissipation part, which is arranged on the side of the low-beam adjustment part away from the demarcation reference plane and is used for installing a low-beam light source.

[0009] In one embodiment, it further includes a second heat dissipation part, the second heat dissipation part is 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 the side of the second heat dissipation part away from the first heat dissipation part.

[0010] In one embodiment, it further includes a fan, the fan is arranged on the backlight side of the dimming 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 accommodation space.

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

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

[0013] In one embodiment, the fan is arranged on a side of the second heat dissipation portion facing away from the dimming module, and a ventilation duct is provided on the portion of the second heat dissipation portion opposite to the fan; taking a reference plane λ perpendicular to the light emitting direction of the dimming module as a projection plane, the orthographic projection of the third heat dissipation portion on the projection plane at least partially overlaps with the orthographic projection of the ventilation duct on the projection plane.

[0014] In one embodiment, the third heat dissipation portion has third fins arranged at intervals, 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 fin on the projection plane at least partially overlaps with the orthographic projection of the ventilation duct on the projection plane.

[0015] In one embodiment, a pre-positioning structure is provided between the fan and the second heat dissipation part, and 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 provided in one of the fan and the second heat dissipation part, and the positioning protrusion is provided in the other 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, satisfying: 0.4㎜≤d≤2㎜.

[0016] In one embodiment, it also includes 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 against each other to block the left and right sides of the dimming module.

[0017] According to another aspect of the present application, a vehicle lamp is provided, comprising any of the aforementioned optical modules.

[0018] The beneficial effects of the present application are as follows: A receiving space is formed by the relative arrangement of the first heat dissipation part and the third heat dissipation part. The high beam adjustment part and the low beam adjustment part are arranged in this receiving space. The heat dissipation component can dissipate heat from multiple angles. At the same time, the third heat dissipation part is arranged opposite to the first heat dissipation part, that is, the heat dissipated through the third heat dissipation part and the first heat dissipation part is dissipated in opposite directions, and the dissipated heat is dispersed in different directions around the dimming module, improving the heat dissipation efficiency of the heat dissipation component, being able to timely discharge the heat dissipated by the high beam adjustment part and the low beam adjustment part, which is beneficial to improving the overall service life; and the heat dissipation component has a protective effect, which can prevent the high beam adjustment part and the low beam adjustment part from being interfered by the outside world. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The following will clearly show the technical solutions and other beneficial effects of the present application by describing the specific embodiments of the present application in detail with reference to the drawings.

[0020] Figure 1 It is a schematic structural diagram of an optical module provided by an embodiment of the present application.

[0021] Figure 2 It is a schematic diagram of light emission of an optical module provided by an embodiment of the present application.

[0022] Figure 3 It is a schematic diagram of a heat dissipation component provided by an embodiment of the present application.

[0023] Figure 4 is Figure 3 The enlarged view of part A in

[0024] Figure 5 is Figure 3 The right view of

[0025] Figure 6 is Figure 3 The exploded view of

[0026] Figure 7 It is a schematic diagram of a first heat dissipation part and a second heat dissipation part provided by an embodiment of the present application.

[0027] In the figure:

[0028] 1. Demarcation reference plane;

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

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

[0031] a. Positioning pin;

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

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

[0034] 30. Accommodating space;

[0035] 40. Fan;

[0036] 50. Pre - positioning structure; 51. Positioning groove; 52. Positioning bump. Detailed implementation mode

[0037] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative efforts belong to the scope of protection of the present application.

[0038] In the description of the present application, it should be noted that unless otherwise clearly defined and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a communication with each other; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific situations.

[0039] Next, the heat dissipation component and the vehicle lamp in the present application will be elaborated in detail in conjunction with the accompanying drawings and specific embodiments.

[0040] In the prior art, the heat dissipation solution often fails to meet the heat dissipation requirements of high - power lamps, resulting in too high a temperature of the lamps, affecting the light quality, shortening the bulb life, and even possibly causing safety hazards.

[0041] To solve the above - mentioned technical problems, an embodiment of the present application provides an optical module configured to discharge the heat of the dimming module. The heat dissipation component therein includes a first heat dissipation part and a third heat dissipation part arranged opposite to each other; a accommodating space is formed between the first heat dissipation part and the third heat dissipation part, and the dimming module includes a high - beam adjustment part and a low - beam adjustment part, and the dimming module is arranged in the accommodating space. The following is a detailed elaboration.

[0042] ReferenceFigures 1 - 2 , this application provides an optical module, including:

[0043] The high - beam adjustment part 4 is configured to adjust the emitted high - beam light rays towards the light - emitting side;

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

[0045] The high - beam light source 4 - 2 is arranged at a position of the high - beam adjustment surface 4 - 1 away from the demarcation reference surface;

[0046] The low - beam light source 3 - 2 is arranged at a position of the low - beam adjustment surface 3 - 1 away from the demarcation reference surface;

[0047] Among them, the high - beam light rays emitted by the high - beam adjustment part 4 cooperate with structures such as a projection lens to form a high - beam light pattern; the light rays emitted by the low - beam adjustment part 3 cooperate with structures such as a projection lens to form a low - beam light pattern.

[0048] In this application, the high - beam adjustment part 4 and the low - beam adjustment part 3 are connected. The number of components is small, the circuit layout is more compact and concise, saving the layout space; the small number of components and molds also reduces the production cost and maintenance cost; the compact structure can reduce the layout difficulty in the lamp and the weight of the whole lamp, which is beneficial to improving the reliability of the lamp; at the same time, the small number of components and assembly steps are beneficial to reducing the system tolerance and optical error, and the illumination light pattern 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 arranged at the roots of the sides where the high - beam adjustment surface 4 - 1 and the low - beam adjustment surface 3 - 1 are away from each other. The assembled high - beam light source 4 - 2 and the low - beam light source 3 - 2 are spaced apart and separated from each other. When the high - and low - beam light sources are lit simultaneously, the heat field is dispersed. Since 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 and arranged on the periphery of the dimming module, which can significantly increase the heat - sink layout space.

[0050] The design of this application can make the high - beam light source 4 - 2 and the low - beam light source 3 - 2 spaced apart and separated from each other, and the heat field and heat are dispersed when the high - and low - beam light sources are lit simultaneously; and the heat - dissipation structure adapted to the high - and low - beam functions is not arranged between the two high - and low - beam light sources, so that the original common heat sink for high - and low - beam is changed to independent and spaced - apart heat sinks for high - and low - beam respectively. This not only can significantly increase the heat - dissipation space of the heat sink and improve the heat - dissipation efficiency, but also can use the space outside the module to add heat - sink fins or expand the heat - dissipation module to further improve the heat - dissipation ability of the module.

[0051] In addition, in the prior art, a single light source is used to form a low beam light pattern and a high beam light pattern, and a light shielding plate is used to form the cut-off line of the low beam. In this way, the low beam area and the high beam area are completely separated without overlapping parts, resulting in poor road illumination performance of the vehicle lamp. In the present application, by providing two light sources, which are respectively used to form the low beam light pattern and the high beam light pattern, there is no need to share a single light source, nor is it necessary to use a traditional light shielding plate to achieve the transformation between the high beam and the low beam. When the high beam light source 4-2 is turned on alone, there is still some energy below the cut-off line, and a halo diffuses towards the low beam area at the cut-off line, effectively improving the road illumination effect. It should be noted that: the cut-off line is the cut-off line formed above the low beam area when the light shielding plate forms the low beam, and the low beam area and the high beam area are separated by the cut-off line.

[0052] It should be noted that the specific forms of the light sources in the present application include but are not limited to forms such as lamp beads and lamp boards including circuit boards. For example Figure 1 The high beam light source 4-2 and the low beam light source 3-2 are respectively in the form of lamp boards. The lamp boards are assembled and fixed to the low beam adjusting part 3 and the high beam adjusting part 4 through positioning pins a.

[0053] The positioning pin a on the low beam adjusting part 3 can further be embedded into the third heat dissipation part 21, and the positioning pin a on the high beam adjusting part 4 can further be embedded into the first heat dissipation part 11, so as to realize the pin hole positioning cooperation between the adjusting part and the radiator. After the positioning cooperation, they can be connected and fixed through fasteners such as screws.

[0054] In some embodiments, a positioning and clamping structure is further included. The positioning and clamping structure includes a positioning slot and a positioning block, and the positioning block is clamped in the positioning slot;

[0055] Wherein, the positioning slot is provided on one of the first heat dissipation part 11 and the high beam adjusting part 4, and the positioning block is provided on the other of the first heat dissipation part 11 and the high beam adjusting part 4; and / or, the positioning slot is provided on one of the third heat dissipation part 21 and the low beam adjusting part 3, and the positioning block is provided on the other of the third heat dissipation part 21 and the low beam adjusting part 3. On the basis of the pin hole positioning, by adding the positioning and clamping structure, the form of the combination of multiple positioning structures is beneficial to reducing the assembly error between components.

[0056] Refer to Figures 1 - 2 , in some embodiments, the high beam adjusting part 4 has at least one high beam adjusting surface 4-1, which is configured to adjust the emitted high beam light rays towards the light emitting side; the low beam adjusting part 3 has at least one low beam adjusting surface 3-1, which is configured to adjust the emitted low beam light rays towards the light emitting side;

[0057] Among them, along the adjustment light-emitting direction of the high-beam adjustment surface 4-1, the value of the distance L1 between the high-beam adjustment surface 4-1 and the demarcation reference surface 1 has a decreasing trend; along the adjustment light-emitting direction of the low-beam adjustment surface 3-1, the value of the distance L2 between the low-beam adjustment surface 3-1 and the demarcation reference surface 1 has a decreasing trend.

[0058] Specifically, the high-beam adjustment part 4 and the low-beam adjustment part 3 are located on both sides of the demarcation reference surface 1, and along the adjustment light-emitting direction of the high-beam adjustment surface 4-1, the distance L1 between the high-beam adjustment surface 4-1 and the demarcation reference surface 1 is designed to gradually decrease; along the adjustment light-emitting direction of the low-beam adjustment surface 3-1, the distance L2 between the low-beam adjustment surface 3-1 and the demarcation reference surface 1 is designed to gradually decrease. The high-beam and low-beam adjustment parts 3 are separated by the reference surface. When the high-beam adjustment surface 4-1 and the low-beam adjustment surface 3-1 in this form are assembled to form an optical module, in order to make the light enter the first lens, the high-beam light source 4-2 needs to be arranged at a position on the high-beam adjustment surface 4-1 far from the reference surface, and the low-beam light source 3-2 needs to be arranged at a position on the low-beam adjustment surface 3-1 far from the reference surface. 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 simultaneously.

[0059] Since 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 radiator are also spaced apart and arranged on the periphery of the dimming module, which can significantly increase the radiator layout space and improve the heat dissipation efficiency.

[0060] Reference 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 demarcation reference surface 1 at least partially overlap; and along the main light-emitting direction of the dimming module, the value of the distance L3 between the high-beam adjustment surface 4-1 and the low-beam adjustment surface 3-1 has a decreasing trend.

[0061] Specifically, the projections of the high-beam adjustment surface 4-1 and the low-beam adjustment surface 3-1 on the demarcation reference surface 1 at least partially overlap, which is beneficial to reducing the size of the dimming module as a whole in the light-emitting direction, making the layout more compact and saving the layout space; the compact structure can also reduce the layout difficulty in the lamp, which is beneficial to improving the reliability of the lamp; at the same time, the compact structure is beneficial to reducing the system tolerance and optical error.

[0062] Refer to Figure 3 , Figure 5 and Figure 6 , the heat dissipation component is configured to discharge the heat of the dimming module. The heat dissipation component includes a third heat dissipation part 21 and a first heat dissipation part 11 arranged oppositely; a receiving space 30 is formed between the first heat dissipation part 11 and the third heat dissipation part 21, and the dimming module is arranged in the receiving space 30.

[0063] A receiving space 30 is formed by the relative arrangement of the first heat dissipation part 11 and the third heat dissipation part 21. The dimming module is arranged in the receiving space 30. The heat dissipation component can dissipate heat from multiple angles of the dimming module. At the same time, the third heat dissipation part 21 and the first heat dissipation part 11 are relatively arranged, that is, the heat dissipated through the third heat dissipation part 21 and the first heat dissipation part 11 is dissipated in opposite directions, and the dissipated heat is dispersed in different directions around the dimming module, improving the heat dissipation efficiency of the heat dissipation component, being able to timely discharge the heat dissipated by the dimming module, and being beneficial to the improvement of the service life of the dimming module.

[0064] It is worth mentioning that the dimming module is arranged in the receiving space 30, that is, the heat dissipation component is arranged around the outside of the dimming module. The heat dissipation component has a protective effect on the dimming module, can avoid the dimming module being interfered by the outside world, is beneficial to improving the installation stability of each optical component in the dimming module, and is also beneficial to improving the optical effect of the dimming module.

[0065] In some embodiments, the heat dissipation component further includes a second heat dissipation part 12. The second heat dissipation part 12 is arranged at an angle with the first heat dissipation part 11, and the angle is not equal to 180°; the third heat dissipation part 21 is arranged 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 enclose the receiving space 30; the third heat dissipation part 21 and the first heat dissipation part 11 are relatively arranged on both sides of the second heat dissipation part 12, that is, the enclosed receiving space 30 has an opening, and the opening is arranged 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 separately arranged or integrally arranged, and no specific limitation is made here, and it is selected according to actual assembly requirements, heat dissipation requirements, etc.

[0067] In some embodiments, the heat dissipation component further includes a first side blocking part 13 and a second side blocking part 22. The first side blocking part 13 is arranged on the left and right sides of the first heat dissipation part 11, and the second side blocking part 22 is arranged on the left and right sides of the third heat dissipation part 21; the first side blocking part 13 and the second side blocking part 22 are in contact with each other to block the left and right sides of the dimming module.

[0068] The first side blocking portion 13 abuts against the second side blocking portion 22, that is, the first side blocking portion 13 and the second side blocking portion 22 cooperate with each other to block the left and right sides of the dimming module. That is, the first heat dissipation portion 11, the second heat dissipation portion 12, the third heat dissipation portion 21, the first side blocking portion 13, and the second side blocking portion 22 cooperate to enclose a cavity. The dimming module is disposed in the cavity, and except for the light-emitting side, the dimming module is blocked, which can avoid the dimming module being interfered by the outside world, and at the same time can avoid the phenomenon of light leakage on the peripheral side of the dimming module (the side other than the light-emitting side of the dimming module), improving the lighting effect of the dimming module.

[0069] It should be noted that in this embodiment, the left and right sides are as Figure 5 the left and right sides in the perspective, that is, through the settings of the first side blocking portion 13 and the second side blocking portion 22, the interval between the first heat dissipation portion 11 and the third heat dissipation portion 21 (the interval formed by the relative settings of the first heat dissipation portion 11 and the third heat dissipation portion 21) is filled up to achieve the blocking of the side of the dimming module.

[0070] It is worth mentioning that in some embodiments, a first mounting portion 14 may be provided at the end of the first side blocking portion 13, and a second mounting portion 23 may be provided at the end of the second side blocking portion 22. The two mounting portions (the first mounting portion 14 and the second mounting portion 23) abut against each other and are connected by a connection method such as screws or rivets. While achieving the blocking of the left and right sides of the dimming module, the connection and fixation between the first heat dissipation portion 11 and the third heat dissipation portion 21 can also be realized, improving the installation stability between the components of the heat dissipation assembly, and further improving the stability of the dimming module (the dimming module is disposed in the accommodation space 30), which is beneficial to the improvement of the optical effect of the dimming module.

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

[0072] The heat is taken away by the air flow generated by the fan 40 (the air blown out by the fan 40, the same below), and the efficient heat dissipation of the heat dissipation assembly can be realized.

[0073] It should be noted that the fan 40 dissipates heat for at least one of the first heat dissipation portion 11, the second heat dissipation portion 12, the third heat dissipation portion 21, and the accommodation space 30, and is set accordingly according to the actual heat dissipation requirements.

[0074] In some embodiments, the first heat dissipation portion 11 has first fins 111 that are spaced apart, 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 portion 12 has second fins 121 that are spaced apart, and a second flow channel 122 is formed between adjacent second fins 121; each first flow channel 112 is connected to at least one second flow channel 122; the heat dissipation assembly also includes a fan 40, and the fan 40 is arranged on a side of the second heat dissipation portion 12 away from the dimming module; taking a reference plane λ perpendicular to the light emitting direction of the dimming module as a projection plane, the orthographic projection of the first fin 111 on the projection plane at least partially overlaps with the orthographic projection of the fan 40 on the projection plane.

[0075] In this embodiment, the provision 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 wind blown out by the fan 40, the same below) takes 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 disposed in the second heat dissipation portion 12 (the second fin 121) will flow into the first flow channel 112 through the second flow channel 122, taking away the heat in the first flow channel 112, thereby effectively improving the heat dissipation efficiency; in addition, the orthographic projection of the first fin 111 on the projection surface at least partially overlaps with the orthographic projection of the fan 40 on the projection surface, that is, Figure 3 From a viewing angle, the first fin 111 and the fan 40 overlap laterally, that is, 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 portion 11 .

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

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

[0079] By disposing the fourth fins 113 , the heat dissipation area of the first heat dissipation portion 11 is increased, and a larger area of the dimming module can be covered, which is beneficial to improving the heat dissipation efficiency.

[0080] In some embodiments, the fourth fin 113 may be disposed in other ways according to the shape of the actual dimming module product and the heat dissipation requirements, but is not limited thereto.

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

[0082] Specifically, the ventilation duct 123 is provided through, and its two ends are respectively connected to the fan 40 and the accommodation space 30. At this time, the setting of the ventilation duct 123 provides a path for the airflow generated by the fan 40, that is, the airflow generated by the fan 40 can pass through the second heat dissipation part 12 and enter the accommodation space 30, thereby realizing the heat dissipation of the dimming module in the accommodation space 30. The airflow generated by the fan 40 directly acts on the dimming module, improving the heat dissipation effect of the dimming module and realizing the overall active heat dissipation.

[0083] It is worth mentioning that the ventilation duct 123 is disposed between the second fins 121, that is, the setting of the ventilation duct 123 does not affect the integrity of the second fins 121, nor does it affect the heat dissipation performance of the second fins 121 (the second fins 121 themselves also have a heat dissipation effect), ensuring the heat dissipation effect of the second heat dissipation part 12.

[0084] It should be noted that the length, quantity, and shape of the ventilation duct 123 can be adjusted according to actual needs. For example Figure 7 as shown in, it can be a plurality of circular holes in an array, or a long strip-shaped square hole, etc. The present embodiment does not make specific limitations.

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

[0086] The orthographic projection of the third heat dissipation part 21 on the projection plane at least partially overlaps with the orthographic projection of the ventilation duct 123 on the projection plane. The fan 40 is connected to the third heat dissipation part 21 through the ventilation duct 123, that is, the airflow generated by the fan 40 can reach the third heat dissipation part 21 through the ventilation duct 123. When the fan 40 operates, while the airflow generated by the fan 40 dissipates heat from the first heat dissipation part 11 and the second heat dissipation part 12, the airflow acts on the third heat dissipation part 21 through the ventilation duct 123, realizing the active heat dissipation of the third heat dissipation part 21, and achieving the effect of the fan 40 cooling multiple parts (the first heat dissipation part 11, the second heat dissipation part 12, and the third heat dissipation part 21), improving the overall heat dissipation efficiency and heat dissipation effect.

[0087] In some embodiments, the third heat dissipation part 21 has third fins 211 disposed at intervals, 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 plane at least partially overlaps with the orthographic projection of the ventilation duct 123 on the projection plane.

[0088] In this embodiment, the orthographic projection of the third fin 211 on the projection plane at least partially overlaps with the orthographic projection of the ventilation duct 123 on the projection plane, that is, the airflow generated by the fan 40 can act on the third fin 211. Since the extension direction of the third flow 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 flow channel 212, and take away the heat of the third flow 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 arranged on the side away from the accommodating space 30. The closer the overall arrangement position of the third heat dissipation portion 21 is to the first heat dissipation portion 11, the larger the area on which the airflow of the fan 40 acts on the third fin 211, and the heat dissipation component as a whole is longitudinally ( Figure 3 The size in terms of viewing angle) will also be smaller, which will help reduce space occupation and facilitate the arrangement of surrounding headlight parts.

[0090] It should be noted that the air outlet direction of the fan 40 is as follows: Figure 3 In the direction X.

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

[0092] When the fan 40 is installed on the second heat dissipation part 12, the pre-positioning structure 50 can be used to quickly locate the installation position of the fan 40, thereby improving assembly efficiency; and the pre-positioning structure 50 can improve the installation accuracy of the fan 40, which is beneficial to improving the heat dissipation efficiency (the more precise the installation position of the fan 40, the more likely the airflow blown by the fan 40 can meet the design requirements and reach the location where heat dissipation is required).

[0093] In this embodiment, the pre-positioning structure 50 includes a positioning groove 51 and a positioning protrusion 52. In order to ensure the convenience and accuracy of installation, it is necessary to control the value of the spacing d between the positioning groove 51 and the positioning protrusion 52; when the value of d is less than 0.4 mm, the spacing 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 difficulty of assembly; when the value of d is greater than 2 mm, the spacing between the positioning protrusion 52 and the positioning groove 51 is larger, which reduces the installation accuracy of the fan 40, thereby reducing the heat dissipation efficiency of the heat dissipation assembly.

[0094] It should be noted that the cross-section of the positioning bump 52 can be patterns such as square, circular, etc. When the cross-section is circular, d is the distance between the positioning bump 52 and the positioning groove 51 in the radial direction of the positioning bump 52. When the cross-section is square, d is the distance between the opposite faces of the positioning bump 52 and the positioning groove 51.

[0095] On the other hand, the present application also relates to a vehicle lamp, including any one of the foregoing optical modules or heat dissipation components.

[0096] Adopting the technical solution provided by the embodiment of the present application, it is intended to form an accommodation space 30 by arranging the first heat dissipation part 11 and the third heat dissipation part 21 opposite to each other. The dimming module is arranged in this accommodation space 30. The heat dissipation component can dissipate heat from multiple angles of the dimming module. 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 through the third heat dissipation part 21 and the first heat dissipation part 11 is dissipated in opposite directions, and the dissipated heat is dispersed in different directions around the dimming module, improving the heat dissipation efficiency of the heat dissipation component, being able to timely discharge the heat dissipated by the dimming module, which is beneficial to improving the service life of the dimming module; and the heat dissipation component has a protective effect on the dimming module, and can prevent the dimming module from being interfered by the outside world.

[0097] In various embodiments of the present application, if there is no special description and logical conflict, the terms or descriptions between different embodiments are consistent and can be mutually referred to. The technical features in different embodiments can be combined to form new embodiments according to their internal logical relationships. In the present application, "at least one" means one or more, and "a plurality" means two or more.

[0098] It can be understood that in the embodiments of the present application, the various numerical numbers involved are only for the convenience of description and are not used to limit the scope of the embodiments of the present application. The size of the serial numbers of the above processes does not mean the order of execution. The execution order of each process should be determined according to its function and internal logic.

[0099] The above has introduced in detail the heat dissipation component and the vehicle lamp provided by the embodiments of the present application. Specific examples are used in this article to elaborate on the principle and implementation manner of the present application. The description of the above embodiments is only used to help understand the present application and its core idea; at the same time, for those of ordinary skill in the art, according to the idea of the present application, there will be changes in the specific implementation manner and application scope. In summary, the content of this specification should not be construed as a limitation to the present application.

Claims

1. An optical module, characterized in that, Comprising: A dimming module, which includes a high-beam adjustment part and a low-beam adjustment part located on both sides of the demarcation reference plane respectively; The high-beam adjustment part has at least one high-beam adjustment surface, which is configured to adjust the emitted high-beam light rays towards the light-emitting side; the low-beam adjustment part has at least one low-beam adjustment surface, which is configured to adjust the emitted low-beam light rays towards the light-emitting side; A first heat dissipation part, which is arranged on the side of the high-beam adjustment part away from the demarcation reference plane and is used for installing a high-beam light source; A third heat dissipation part, which is arranged on the side of the low-beam adjustment part away from the demarcation reference plane and is used for installing a low-beam light source.

2. The optical module according to claim 1, wherein It further includes a second heat dissipation part, and the second heat dissipation part is 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 the side of the second heat dissipation part away from the first heat dissipation part.

3. The optical module according to claim 2, wherein It further includes a fan, and the fan is arranged on the backlight side of the dimming 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 accommodation space.

4. The optical module according to claim 3, wherein The first heat dissipation part has first fins arranged at intervals, a first flow channel is formed between adjacent first fins, and the first flow channel extends along the air outlet direction of the fan; Taking the reference plane λ perpendicular to the light-emitting direction of the dimming module as the projection plane, the orthographic projection of the first fin on the projection plane and the orthographic projection of the fan on the projection plane at least partially overlap.

5. The optical module according to claim 3, wherein The fan is arranged on the side of the second heat dissipation part away from the dimming module, and a ventilation channel is arranged in a penetrating manner at a part of the second heat dissipation part opposite to the fan; Taking the reference plane λ perpendicular to the light-emitting direction of the dimming module as the projection plane, the orthographic projection of the third heat dissipation part on the projection plane and the orthographic projection of the ventilation channel on the projection plane at least partially overlap.

6. The optical module according to claim 5, wherein The third heat dissipation part has third fins arranged at intervals, 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 fin on the projection plane and the orthographic projection of the ventilation channel on the projection plane at least partially overlap.

7. The optical module according to claim 3, wherein A pre-positioning structure is provided between the fan and the second heat dissipation part, and the pre-positioning structure includes a positioning groove and a positioning convex block, and the positioning convex block 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 convex block is arranged on the other of the fan and the second heat dissipation part; The maximum distance between the peripheral side of the positioning convex block and the inner peripheral wall of the positioning groove is d, satisfying: 0.4㎜≤d≤2㎜.

8. The optical module according to any one of claims 1-7, wherein It further includes a first side blocking portion and a second side blocking portion. The first side blocking portion is disposed on the left and right sides of the first heat dissipation portion, and the second side blocking portion is disposed on the left and right sides of the third heat dissipation portion; The first side blocking portion and the second side blocking portion are in mutual abutment to block the left and right sides of the dimming module.

9. The optical module according to claim 1, wherein There is a pin hole positioning fit between the first heat dissipation portion and the high beam adjustment portion, and they are connected by screws; and / or, there is a pin hole positioning fit between the third heat dissipation portion and the low beam adjustment portion, and they are connected by screws.

10. The optical module according to claim 1, wherein, It further includes a positioning and clamping structure. The positioning and clamping structure includes a positioning slot and a positioning block, and the positioning block is clamped in the positioning slot; Wherein, the positioning slot is disposed on one of the first heat dissipation portion and the high beam adjustment portion, and the positioning block is disposed on the other of the first heat dissipation portion and the high beam adjustment portion; and / or, the positioning slot is disposed on one of the third heat dissipation portion and the low beam adjustment portion, and the positioning block is disposed on the other of the third heat dissipation portion and the low beam adjustment portion.

11. A vehicle lamp, characterized in that, It includes the optical module according to any one of claims 1-10.

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