Dimming module, light emitting module, vehicle lamp and vehicle

Abstract

The invention discloses a dimming module, a light emitting module, a vehicle lamp and a vehicle. The dimming module is provided with a boundary reference surface, and comprises a high beam adjusting part which is provided with at least one high beam adjusting surface and is configured to adjust emergent high beam rays towards the 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 distance L1 between the distance light adjusting surface and the boundary reference surface is reduced along the adjusting light emitting direction of the distance light adjusting surface; in the adjusting light emitting direction of the low-beam adjusting face, the distance L2 between the low-beam adjusting face and the boundary reference face is decreased.

Description

Technical Field

[0001] This application relates to the field of vehicle lighting, and more particularly to a dimming module, a light-emitting module, a vehicle lamp, and a vehicle. Background Technology

[0002] In automotive lighting systems, the integrated high and low beam design of headlights is gradually becoming the mainstream trend. However, with the increase in lamp power and integration, heat dissipation has become a key factor affecting headlight performance and lifespan. Traditional reflector-type integrated high and low beam module solutions often cannot meet the heat dissipation requirements of integrated high and low beam designs, resulting in excessively high lamp temperatures, affecting light quality, shortening bulb life, and potentially causing safety hazards. Summary of the Invention

[0003] This application aims to solve at least one of the technical problems existing in the prior art, and to provide a dimming module, a light-emitting module, a vehicle lamp, and a vehicle.

[0004] According to one aspect of this application, a dimming module is provided, having a dividing reference plane, including:

[0005] The high beam adjustment unit has at least one high beam adjustment surface and is configured to adjust the emitted high beam toward the light emitting side;

[0006] A low beam adjustment unit, the low beam adjustment unit having at least one low beam adjustment surface, configured to adjust the emitted low beam toward the light emitting side;

[0007] The high beam adjustment unit and the low beam adjustment unit are located on both sides of the dividing reference plane, respectively;

[0008] Specifically, in the light emission direction along the high beam adjustment surface, the distance L1 between the high beam adjustment surface and the dividing reference surface decreases; in the light emission direction along the low beam adjustment surface, the distance L2 between the low beam adjustment surface and the dividing reference surface decreases.

[0009] According to another aspect of this application, a light-emitting module is provided, including the aforementioned dimming module, and further comprising:

[0010] The first lens has a low beam section and a high beam section, with the low beam section located on the light-emitting side of the low beam adjustment section and the high beam section located on the light-emitting side of the high beam adjustment section;

[0011] The high beam light source is positioned on the high beam adjustment surface at a location away from the reference surface;

[0012] A low beam light source is positioned on the low beam adjustment surface at a location away from the reference surface;

[0013] The high beam light emitted by the high beam adjustment unit is refracted by the high beam unit to form a high beam pattern on the light-emitting side of the high beam unit; the light emitted by the low beam adjustment unit is refracted by the low beam unit to form a low beam pattern on the side of the low beam unit away from the second lens.

[0014] According to another aspect of this application, a vehicle lamp is provided, including any of the aforementioned light-emitting modules.

[0015] According to another aspect of this application, a vehicle is provided, including the aforementioned vehicle lights.

[0016] The beneficial effects of this application will be specifically demonstrated in conjunction with the following accompanying drawings and detailed embodiments. Attached Figure Description

[0017] 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.

[0018] Figure 1 This is a schematic diagram of the dimming module provided in an embodiment of this application.

[0019] Figure 2 This is a schematic diagram of the dimming module provided in an embodiment of this application from another perspective.

[0020] Figure 3 This is a schematic diagram of the light output of a light-emitting module provided in an embodiment of this application.

[0021] Figure 4 This is a schematic diagram of the structure of a light-emitting module provided in an embodiment of this application.

[0022] Figure 5 yes Figure 4 A bottom view;

[0023] Figure 6 This is a schematic diagram of another light-emitting module provided in an embodiment of this application.

[0024] Figure 7 This is a schematic diagram of another light-emitting module provided in the embodiments of this application.

[0025] Figure 8 This is a three-dimensional schematic diagram of the first lens and the second lens provided in the embodiments of this application.

[0026] Figure 9 This is a schematic diagram of the high beam pattern in existing technology.

[0027] Figure 10 This is a schematic diagram of the high beam pattern according to an embodiment of this application.

[0028] Figure 11 This is an overall structural diagram of the high beam radiator and the low beam radiator included in this application.

[0029] In the picture:

[0030] 1. Boundary reference plane;

[0031] 3. Low beam adjustment unit; 3-1. Low beam adjustment surface; 3-2. Low beam source;

[0032] 4. High beam adjustment unit; 4-1. High beam adjustment surface; 4-2. High beam light source;

[0033] 5. Connector; 5-1. Connecting partition;

[0034] a. Positioning pin; b. Zone III protrusion; c. Low beam radiator; d. High beam radiator; e. Fan; f. Ventilation duct;

[0035] 10. First lens; 11. Near beam section; 111. Third light-incident surface; 112. Third light-out surface; 12. Far beam section; 121. Second light-incident surface; 1211. Second cylindrical surface; 122. Second light-out surface;

[0036] 20. Second lens; 21. First incident surface; 211. First cylindrical surface; 22. First exit surface;

[0037] 30. Low beam area; 31. Low beam focal point;

[0038] 40. High beam area; 41. High beam focus. Detailed Implementation

[0039] 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.

[0040] 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.

[0041] Regarding the concept of a cylindrical surface mentioned in this application: A cylindrical surface is a surface formed by moving a straight line parallel to a fixed curve, that is, a surface formed by moving a moving straight line parallel to a fixed curve. The moving straight line is called the generatrix of the cylindrical surface, and the fixed curve is called the directrix of the cylindrical surface. Figure 5 Taking the first cylindrical surface 211 as an example, the generatrix of the first cylindrical surface 211 extends approximately perpendicular to the plane of the paper, and the directrix of the first cylindrical surface 211 is... Figure 5 The arc-shaped curve is parallel to the plane of the paper. The first cylindrical surface 211 can also be regarded as being stretched from the directrix along the normal of the plane containing the directrix, and the normal is parallel to the extension direction of the generatrix of the first cylindrical surface 211.

[0042] In automotive lighting systems, the integrated high and low beam design of headlights is gradually becoming the mainstream trend. However, with the increase in lamp power and integration, heat dissipation has become a key factor affecting headlight performance and lifespan. Traditional reflector-type integrated high and low beam modules experience excessively high lamp temperatures when both high and low beams are simultaneously activated in high beam mode, severely impacting light quality, shortening bulb life, and potentially posing safety hazards. The applicant discovered that the above problems arise because the high and low beams are close together, causing heat to accumulate when both beams are activated simultaneously; furthermore, they are all housed on a single central heat sink, resulting in limited heat dissipation space and low efficiency.

[0043] To solve the above technical problems, refer to Figures 1-3 This application provides a dimming module having a dividing reference plane 1, including:

[0044] The high beam adjustment unit 4 has at least one high beam adjustment surface 4-1 and is configured to adjust the emitted high beam toward the light-emitting side;

[0045] The low beam adjustment unit 3 has at least one low beam adjustment surface 3-1, which is configured to adjust the emitted low beam toward the light-emitting side;

[0046] The high beam adjustment unit 4 and the low beam adjustment unit 3 are located on both sides of the dividing reference plane 1, respectively;

[0047] 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.

[0048] Specifically, the high beam adjustment unit 4 and the low beam adjustment unit 3 are located on opposite sides of the dividing reference surface 1. 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 is designed to gradually 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 is designed to gradually decrease. The high beam and low beam adjustment units 3 are separated by the reference surface. When the high beam adjustment surface 4-1 and the low beam adjustment surface 3-1 are assembled into an optical module, in order to meet the requirements of reflected light emission, the high beam light source 4-2 needs to be placed on the high beam adjustment surface 4-1 away from the reference surface, and the low beam light source 3-2 needs to be placed on the low beam adjustment surface 3-1 away 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, so that heat is dispersed when the high beam and low beam light sources are lit at the same time.

[0049] Since the assembled high beam light source 4-2 and low beam light source 3-2 are spaced apart and separated from each other, the light source circuit board and the corresponding high beam heat sink and low beam heat sink are also spaced apart on the periphery of the dimming module, which can significantly increase the space for heat sink arrangement.

[0050] This application enables 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 heat can be 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 between the high and low beams to the independent and spaced high beam heat sink and low beam heat sink. This not only significantly increases the heat dissipation space of the heat sink and improves the heat dissipation efficiency, but also allows for the addition of heat sink fins or expansion of heat dissipation modules in the space around the module to further improve the module's heat dissipation capacity.

[0051] refer to Figure 3 , Figure 4 and Figure 11 In some embodiments, a high beam heat sink d is also included, located on the side of the high beam adjustment section 4 away from the dividing reference surface 1, for mounting the high beam light source 4-2; and / or a low beam heat sink c is located on the side of the low beam adjustment section 3 away from the dividing reference surface 1, for mounting the low beam light source 3-2.

[0052] Specifically, the high beam light source 4-2 and the low beam light source 3-2 are spaced apart and separated from each other, so that heat is 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. The high beam heat sink d and the low beam heat sink c are set independently and separately. This not only significantly increases the heat dissipation space and improves the heat dissipation efficiency, but also allows for the addition of heat sink fins or expansion of heat dissipation modules in the space around the module to further improve the module's heat dissipation capacity.

[0053] It is worth noting that the specific forms of the light source include, but are not limited to, LED beads, LED boards containing circuit boards, etc.

[0054] In one embodiment, the low beam heat sink c is connected to the high beam heat sink d, and the low beam heat sink c and the high beam heat sink d overlap on the backlight side of the dimming module to form an overlapping portion. That is, the low beam heat sink c has projection I on a vertical projection plane perpendicular to the light output direction of the dimming module, and the high beam heat sink d has projection II on a vertical projection plane perpendicular to the light output direction of the dimming module, and projection I and projection II overlap.

[0055] It also includes a fan e, which is located at the overlapping part. Among the low beam radiator c and the high beam radiator d, the radiator closer to the fan e (such as the high beam radiator d shown in the figure) has a ventilation duct f at the corresponding overlapping part. The ventilation duct f connects the fan e and another radiator (such as the low beam radiator c shown in the figure) for the airflow generated by the fan e to pass through.

[0056] Specifically, since the low beam heatsink c and the high beam heatsink d overlap on the backlight side of the dimming module to form an overlapping section, and the fan e is located in the overlapping section, active heat dissipation of the module can be achieved by combining the ventilation duct f at the overlapping section. During operation, the fan e blows outside air into the ventilation duct f, achieving a two-way cooling effect. It can dissipate heat from the high beam heatsink d through the ventilation duct f, and at the same time, the air blown through the ventilation duct f to the low beam heatsink c can also cool it down, thus efficiently dissipating heat from both heatsinks and the entire module.

[0057] In actual use, the length and number of ventilation ducts f can be adjusted. Since the heat dissipation fins on the radiator also have a heat conduction effect, the position of the ventilation ducts f is preferably to avoid the heat dissipation fins in order to ensure the heat dissipation effect.

[0058] refer to Figure 3 In some embodiments, 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; 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.

[0059] 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.

[0060] refer to Figure 1In some embodiments, along the light emission direction of the high beam adjustment section 4, the spatial position of at least one of the high beam adjustment surfaces 4-1 is different from the spatial positions of the other high beam adjustment surfaces 4-1.

[0061] Specifically, the spatial position of the high beam adjustment surface 4-1 is different from the spatial positions of the other high beam adjustment surfaces 4-1, that is... Figure 1 The different high beam adjustment surfaces 4-1 shown are staggered along the direction of light output. When used in conjunction with the lens in front of the light output side, the high beam adjustment surfaces 4-1 in different spatial positions can present different light patterns. The high beam light sources 4-2 corresponding to different high beam adjustment surfaces 4-1 can also be turned off as needed, thus making it suitable for ADB high beam headlights.

[0062] refer to Figure 1 In some embodiments, the light-emitting openings of the high beam adjustment unit 4 and the low beam adjustment unit 3 face the same direction, which helps to maintain consistency in the spatial positions of the high and low beam patterns. Of course, in other embodiments, the light-emitting openings can be set to face different directions depending on the beam pattern expansion angle and direction of the high and low beams.

[0063] refer to Figure 2 In some embodiments, a connector 5 is also included, which is disposed on the backlight side of the high beam adjustment part 4 and the low beam adjustment part 3, and connects the high beam adjustment part 4 and the low beam adjustment part 3.

[0064] Specifically, the connector 5 is used to connect and fix the high beam adjustment part 4 and the low beam adjustment part 3, thereby improving the installation strength, ensuring the stability of the shape, and preventing the parts from becoming loose or broken due to vehicle bumps.

[0065] refer to Figure 2 In some embodiments, the connector 5 includes a plurality of connecting partitions 5-1, which are spaced apart along the arrangement direction of the plurality of high beam adjustment surfaces 4-1. The arrangement of multiple connecting partitions 5-1 is beneficial to improving the support and connection strength between the high beam adjustment part 4 and the low beam adjustment part 3.

[0066] refer to Figures 3-5 In another aspect, this application provides a light-emitting module, including the aforementioned dimming module, and further comprising:

[0067] The first lens 10 has a low beam section 11 and a high beam section 12. The low beam section 11 is located on the light-emitting side of the low beam adjustment section 3, and the high beam section 12 is located on the light-emitting side of the high beam adjustment section 4.

[0068] 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;

[0069] 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;

[0070] The high beam light emitted by the high beam adjustment unit 4 is refracted by the high beam unit 12 and forms a high beam pattern on the light-emitting side of the high beam unit 12; the light emitted by the low beam adjustment unit 3 is refracted by the low beam unit 11 and forms a low beam pattern on the light-emitting side of the low beam unit 11.

[0071] Specifically, the low beam adjustment unit 3 of the light-emitting module cooperates with the low beam unit 11 to form a low beam pattern, and the high beam adjustment unit 4 cooperates with the high beam unit 12 to form a high beam pattern. The high beam light source 4-2 and the low beam light source 3-2 can be respectively arranged at the root of the high beam adjustment surface 4-1 and the low beam adjustment surface 3-1 on the side 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, so that heat is dispersed when the high beam and low beam light sources are lit at the same time.

[0072] Since the assembled high beam light source 4-2 and low beam light source 3-2 are spaced apart and separated from each other, the light source circuit board and the corresponding high beam heat sink and low beam heat sink are also spaced apart on the periphery of the dimming module, which can significantly increase the space for heat sink arrangement.

[0073] This application enables 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 heat can be 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 between the high and low beams to the independent and spaced high beam heat sink and low beam heat sink. This not only significantly increases the heat dissipation space of the heat sink and improves the heat dissipation efficiency, but also allows for the addition of heat sink fins or expansion of heat dissipation modules in the space around the module to further improve the module's heat dissipation capacity.

[0074] In existing technologies, a single light source is used to form both low-beam and high-beam patterns. A light shield forms the cutoff line for the low-beam, completely separating the low-beam area 30 and the high-beam area 40 without overlap, resulting in poor road illumination performance. This application, by using two light sources, one for low-beam and one for high-beam, eliminates the need for a shared light source and a traditional light shield 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 (e.g., ...). Figure 10 (As shown). It is worth noting that: the cutoff line is the light-dark cutoff line formed above the low beam area 30 when the light shield forms the low beam. The cutoff line completely separates the low beam area 30 and the high beam area 40, as shown. Figure 9 As shown, in the prior art, a cutoff line is formed by a light shield, and there is no lighting effect below the high beam area 40. The light effect at the cutoff line position is sharp, which is not conducive to the road illumination effect of the vehicle headlights.

[0075] It is worth noting that the specific form of the light source includes, but is not limited to, LED beads, LED boards containing circuit boards, etc. For example... Figure 4 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.

[0076] refer to Figures 4-5 In some embodiments, a second lens 20 is also included, disposed on the light-incident surface side of the near-light portion 11; the second lens 20 has a first light-incident surface 21 and a first light-outceasing surface 22 disposed opposite to each other, the first light-outceasing surface 22 being disposed between the first light-incident surface 21 and the first lens 10.

[0077] The first light-incident surface 21 is a curved surface with multiple segments of first cylindrical surfaces 211 connected together, which is used to converge light rays to the space between the second lens 20 and the near-light section 11 and diffuse them in a second direction perpendicular to the generatrix of the first cylindrical surfaces 211; (the second direction is parallel to the plane containing the directrix of the first cylindrical surfaces 211)

[0078] The third light-incident surface 111 (or the third light-outceasing surface 112) of the near-light section 11 is a third cylindrical surface, used to converge light rays in a first direction perpendicular to the generatrix of the third cylindrical surface 1121; (the first direction is parallel to the plane containing the directrix of the third cylindrical surface)

[0079] The generatrix of the first cylindrical surface 211 and the generatrix of the third cylindrical surface are perpendicular or nearly perpendicular to each other (e.g., with an included angle of 70°-90°), and both the second lens 20 and the near-light portion 11 are focalless lenses.

[0080] Specifically, the first cylindrical surface 211 is in a second direction perpendicular to the generatrix of the first cylindrical surface 211 ( Figure 4 The direction shown in the horizontal plane) after the light rays converge horizontally expands, which is beneficial for converging the light rays and increasing the irradiation width; then the third cylinder extends in the first direction perpendicular to the generatrix of the third cylinder ( Figure 4 The direction shown in the vertical plane converges the light vertically, thereby adjusting the near beam in two directions to form a flattened circular near beam pattern.

[0081] In this application, the afocal lens is also called a non-focal lens. Since the first cylindrical surface 211 of the second lens 20 and the third cylindrical surface of the near light part 11 are respectively adjusted to increase and change the curvature, etc., to form a structure without a focal point, compared with traditional lenses, they do not have a focal point or a focal area, and are not obviously focused. Therefore, compared with the prior art, it can avoid the problem that the focal lens will concentrate the projected light when adjusting the light, resulting in very concentrated local brightness of the light pattern, as well as uneven brightness and color in different parts. The light pattern, color, and brightness displayed in this embodiment are more uniform, and the boundary of the formed near light cutoff line is softer. Furthermore, since there is no focal point, its design tolerance is large and the installation position accuracy requirements of the matching dimming module are low.

[0082] Furthermore, since the first cylindrical surface 211 converges the light to the area between the second lens 20 and the near beam section 11 within the plane of its collimation, it avoids the light from converging into the plastic lens or onto the lamp housing in front of the near beam section 11, which would cause the lamp body temperature to rise. By deflecting and converging the light at a large angle to the area between the second lens 20 and the near beam section 11, the beam width reaching the near beam section 11 after convergence and intersection is very small, allowing almost all of it to enter the near beam section 11 and preventing leakage from the left and right edges of the near beam section 11. In this case, even if the horizontal width of the near beam section 11 is designed to be smaller, it is sufficient for the light to enter. Compared with traditional lenses that collimate and converge light, the luminous efficiency is higher and it is beneficial for the small size design of the near beam section 11. The light converges and exits between the second lens 20 and the near beam section 11, and the final exit beam pattern also has a small horizontal width, resulting in more focused light emission and imaging.

[0083] Since the second lens 20 and the low beam section 11 have no focal point, they do not need to be strictly sized and positioned in the light-emitting direction with the low beam adjustment section. Unlike traditional solutions, the focal lengths of the reflector and the lens do not need to be superimposed. The low beam adjustment section can be set as close as possible to the second lens 20, thereby reducing the length of the entire light-emitting module in the light-emitting direction. The length can be as short as 20mm or less, avoiding encroachment on the front space of the vehicle.

[0084] In some embodiments, the low beam adjustment surface 3-1 has at least two focal points, the low beam light source 3-2 is disposed near the first focal point of the low beam adjustment surface 3-1, and the second focal point of the low beam adjustment surface 3-1 is located between the second lens 20 and the low beam portion 11.

[0085] Since the second focal point is located between the second lens 20 and the near light section 11, the near light adjustment surface 3-1 can converge the light between the second lens 20 and the near light section 11 and diffuse it. After the convergence and intersection, the beam width reaching the near light section 11 is very small, and almost all of it can enter the near light section 11. In this case, even if the size of the near light section 11 is smaller in the direction perpendicular to the light output direction, it is still sufficient for the light to enter. Compared with conventional technology, the luminous efficiency is higher and it is beneficial to the small size design of the near light section 11.

[0086] In this embodiment, the optical design only needs to consider the length between the two focal points of the near beam adjustment surface 3-1, which helps to reduce the length of the entire light output module in the light output direction.

[0087] refer to Figure 4 In some embodiments, the first light-emitting surface 22 has a III-zone protrusion b for light rays emitted from the first light-emitting surface 22 to pass through and form a III-zone structure in the near-light pattern.

[0088] Specifically, this application integrates the structure used to form the III zone structure onto the first light-emitting surface 22, reducing the number of parts, making the layout more compact, saving arrangement space, and also reducing the number of molds; the compact structure can also reduce the layout difficulty in the lamp, which is conducive to improving the reliability of the lamp; at the same time, the integrated compact structure is conducive to reducing system tolerances and optical errors.

[0089] See Figure 6 and Figure 8 In one embodiment, the light-emitting module has a preset direction, and the near light portion 11 and the far light portion 12 are arranged along the preset direction.

[0090] It should be noted that the preset direction can be any direction; in this embodiment, the preset direction is... Figure 6 In the vertical direction of the view, the low beam section 11 is located below the high beam section 12; correspondingly, there are two sets of high beam adjustment sections and low beam adjustment sections, one above the other. In actual production, the specific positions of the high beam adjustment section and low beam adjustment section can be determined according to the lighting requirements of the vehicle lights and the vehicle styling design.

[0091] The low beam pattern, located in the low beam area 30, is normally positioned below the high beam area 40. (See also...) Figure 7 In some embodiments, the low beam area 30 may also be positioned above the high beam area 40, and may be adjusted accordingly based on actual lighting requirements and vehicle styling design.

[0092] See Figure 6In one embodiment, the second lens 20 has a first light-incident surface 21 and a first light-exit surface 22 disposed opposite to each other, the first light-exit surface 22 being disposed between the first light-incident surface 21 and the first lens 10; the first light-exit surface 22 is a curved surface convex toward the first lens 10, and the first light-incident surface 21 is a curved surface with multiple segments of first cylindrical surfaces 211 connected together (e.g., Figure 8 As shown), the generatrix of the first cylindrical surface 211 is parallel to the preset direction; in the direction from the near beam section 11 to the far beam section 12, the thickness of the second lens 20 in the light-emitting direction of the near beam adjustment section 3 gradually decreases, that is, the second lens 20 is arranged to be narrower at the top and wider at the bottom.

[0093] It should be noted that the generatrix of the first cylindrical surface 211 is parallel to the preset direction, which in this embodiment means that the generatrix is ​​vertical. The first light-emitting surface 22 is curved, and the opening of the curved surface faces downward to the right. This arrangement ensures that the low beam focus 31 is as far downward as possible from the high beam focus 41 (the low beam focus 31 is located below the high beam focus 41, and the low beam light source is close to the lower part of the low beam area 30). This provides sufficient installation space for the dimming components (such as the high / low beam adjustment unit, high / low beam light source, etc.) used to form the low beam pattern and the high beam pattern, and is also more conducive to heat dissipation. At the same time, it can avoid mutual interference between the high and low beam dimming components and effectively improve the lighting effect of the vehicle headlights.

[0094] In other embodiments, in the light emission direction of the low beam adjustment unit 3, the side of the third light-incident surface 111 closest to the high beam unit 12 is positioned in front of the side of the third light-incident surface 111 furthest from the high beam unit 12 (i.e., the third light-incident surface 111 is inclined relative to the interface between the high beam unit 12 and the low beam unit 11). This arrangement also ensures that the low beam focal point 31 is as far downward as possible from the high beam focal point 41 (the low beam focal point 31 is located below the high beam focal point 41, and the low beam light source is located below the low beam area 30), providing sufficient installation space for the dimming components (such as the high / low beam adjustment unit, high / low beam light source, etc.) used to form the low beam and high beam patterns, and also facilitating heat dissipation; at the same time, it avoids mutual interference between the high and low beam dimming components, effectively improving the lighting effect of the vehicle headlights.

[0095] It is worth noting that in embodiments where the lens has a focal point, the high beam adjustment unit 4 and the high beam light source 4-2 need to be designed to be compatible with the high beam focal point 41 (e.g., located at or near the focal point), and the low beam adjustment unit 3 and the low beam light source 3-2 need to be designed to be compatible with the low beam focal point 31 (e.g., located at or near the focal point).

[0096] See Figure 6In one embodiment, the high beam section 12 has a second light-incident surface 121 and a second light-outceasing surface 122 disposed opposite to each other. The second light-incident surface 121 is disposed between the second light-outceasing surface 122 and the high beam adjustment section 4. The second light-incident surface 121 is a curved surface with multiple segments of second cylindrical surfaces 1211 connected together (e.g., Figure 8 As shown), the second light-emitting surface 122 is cylindrical. In the light-emitting direction of the high beam adjustment section 4, the end of the generatrix of the second cylindrical surface 1211 that is close to the low beam section 11 is in front of the end of the generatrix of the second cylindrical surface 1211 that is far away from the low beam section 11, that is, the generatrix of the second cylindrical surface 1211 is inclined.

[0097] By setting the generatrix of the second cylindrical surface 1211 to be inclined, the high beam focus 41 is ensured to be as far upward as possible from the low beam focus 31 (the high beam focus 41 is close to the upper part of the high beam area 40), which provides sufficient installation space for the dimming components (such as the high / low beam adjustment part, high / low beam light source, etc.) used to form the low beam pattern and the high beam pattern, and is also more conducive to heat dissipation; at the same time, it can avoid mutual interference between the high and low beam dimming components, effectively improving the lighting effect of the vehicle headlights.

[0098] See Figure 6 In one embodiment, the angle between the generatrix of the two cylindrical surfaces and the interface between the low beam portion 11 and the high beam portion 12 is α, satisfying: 60°≤α≤80°, such as 60°, 70°, 80°, etc. When the value of α is less than 60°, the angle between the low beam portion 11 and the high beam portion 12 is too small, which will cause damage to the high beam portion 12 during the demolding process of the first lens 10 and increase the demolding difficulty. When the value of α is greater than 80°, it is not conducive to the setting of the high beam focal point 41 and affects the road illumination effect. Within this value range, it is convenient to demold the first lens 10 while ensuring a good road illumination effect. The height of the high beam focal point 41 is moderate, which will not cause the high / low beam adjustment part to occupy too much longitudinal space, which is conducive to the arrangement of other components of the headlight, facilitates the flat design of the headlight, and can meet the diverse needs of the styling design.

[0099] See Figure 6 In one embodiment, the near light portion 11 has a third light-incident surface 111 and a third light-outceasing surface 112 disposed opposite to each other. The third light-incident surface 111 is disposed between the third light-outceasing surface 112 and the second lens 20. The third light-outceasing surface 112 is connected to the second light-outceasing surface 122 to form a smooth curved surface, that is, the left side of the first lens 10 is a smooth curved surface.

[0100] This design facilitates light propagation, resulting in better road illumination. Furthermore, the smooth curved surface facilitates the overall demolding of the first lens 10, improving production efficiency. It also prevents damage to the first lens 10 during demolding, increasing yield and reducing production costs. Additionally, the smooth curved surface on the left side of the first lens 10 is a convex surface in this embodiment; however, in some embodiments it can be other forms of curved surface, depending on the specific design of the vehicle headlight, and is not limited to this.

[0101] In some embodiments, the third light-incident surface 111 is planar, and a preset direction is parallel to the third light-incident surface 111. The planar arrangement of the third light-incident surface 111 is beneficial for mold processing and forming, improves production efficiency, and facilitates the demolding of the first lens 10.

[0102] On the other hand, this application also relates to a vehicle lamp, including any of the aforementioned light-emitting modules.

[0103] On the other hand, this application also relates to a vehicle including the aforementioned headlights.

[0104] Using the technical solution provided in the embodiments of this application, the vehicle and headlights include the aforementioned light-emitting module, and thus have the same effect as the aforementioned light-emitting module, which will not be elaborated here.

[0105] 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.

[0106] 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.

[0107] The light-emitting module, vehicle headlight, and vehicle 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. A dimming module, characterized by, It has a boundary reference plane, including: The high beam adjustment unit has at least one high beam adjustment surface and is configured to adjust the emitted high beam toward the light emitting side; A low beam adjustment unit, the low beam adjustment unit having at least one low beam adjustment surface, configured to adjust the emitted low beam toward the light emitting side; The high beam adjustment unit and the low beam adjustment unit are located on both sides of the dividing reference plane, respectively; Specifically, in the light emission direction along the high beam adjustment surface, the distance L1 between the high beam adjustment surface and the dividing reference surface decreases; in the light emission direction along the low beam adjustment surface, the distance L2 between the low beam adjustment surface and the dividing reference surface decreases.

2. The dimming module of claim 1, wherein, Also includes: A high beam heat sink is located on the side of the high beam adjustment section away from the dividing reference plane and is used to install the high beam light source; And / or, a low beam heat sink, located on the side of the low beam adjustment section away from the dividing reference plane, for mounting the low beam light source.

3. The dimming module of claim 1, wherein, The projections of the high beam adjustment surface and the low beam adjustment surface onto the dividing reference plane at least partially overlap; and along the main light output direction of the dimming module, the distance L3 between the high beam adjustment surface and the low beam adjustment surface decreases.

4. The dimming module of claim 1, wherein, Along the light emission direction of the high beam adjustment section, the spatial position of at least one of the high beam adjustment surfaces is different from the spatial position of the other high beam adjustment surfaces.

5. The dimming module of claim 1, wherein, The light-emitting openings of the high beam adjustment unit and the low beam adjustment unit face the same direction.

6. The dimming module of claim 1, wherein, It also includes a connector disposed on the backlight side of the high beam adjustment unit and the low beam adjustment unit, and connecting the high beam adjustment unit and the low beam adjustment unit.

7. The dimming module of claim 6, wherein, The connector includes multiple connecting partitions, which are spaced apart along the arrangement direction of the multiple high beam adjustment surfaces.

8. A light-out module, characterized in that, Including the dimming module according to any one of claims 1-7, further comprising: The first lens has a low beam section and a high beam section, with the low beam section located on the light-emitting side of the low beam adjustment section and the high beam section located on the light-emitting side of the high beam adjustment section; The high beam light source is positioned on the high beam adjustment surface at a location away from the reference surface; A low beam light source is positioned on the low beam adjustment surface at a location away from the reference surface; The high beam light emitted by the high beam adjustment unit is refracted by the high beam unit to form a high beam pattern on the light-emitting side of the high beam unit; the light emitted by the low beam adjustment unit is refracted by the low beam unit to form a low beam pattern on the light-emitting side of the low beam unit.

9. The light-emitting module as described in claim 8, characterized in that, It also includes a second lens, which is disposed on the light-incident surface side of the near-light portion; the second lens has a first light-incident surface and a first light-outceasing surface disposed opposite to each other, and the first light-outceasing surface is disposed between the first light-incident surface and the first lens; The first light-incident surface is a curved surface with multiple segments of first cylindrical surfaces connected together, which is used to converge light rays to the area between the second lens and the near-light section and diffuse them in a second direction perpendicular to the generatrix of the first cylindrical surfaces; The third light-incident surface and / or the third light-outceasing surface of the near-light section are third cylindrical surfaces, used to converge light rays in a first direction perpendicular to the generatrix of the third cylindrical surface; The generatrix of the first cylindrical surface and the generatrix of the third cylindrical surface are perpendicular or approximately perpendicular to each other, and both the second lens and the near-light section are focalless lenses.

10. The light-emitting module as described in claim 9, characterized in that, The second lens has a first light-incident surface and a first light-exit surface arranged opposite to each other, the first light-exit surface being disposed between the first light-incident surface and the first lens; the first light-incident surface is a curved surface with multiple segments of first cylindrical surfaces connected together; In the direction from the near beam portion toward the far beam portion, the thickness of the second lens gradually decreases in the light-emitting direction of the near beam adjustment portion; or, in the light-emitting direction of the near beam adjustment portion, the side of the third light-incident surface near the far beam portion is in front of the side of the third light-incident surface away from the far beam portion.

11. The light-emitting module as described in claim 8, characterized in that, The high beam section has a second light-incident surface and a second light-outcident surface arranged opposite to each other, with the second light-incident surface disposed between the second light-outcident surface and the high beam adjustment section; The second light-incident surface is a curved surface with multiple connected second cylindrical surfaces, and the second light-outcrystal surface is cylindrical. In the light-out direction of the high beam adjustment section, the end of the generatrix of the second cylindrical surface near the low beam section is in front of the end of the generatrix of the second cylindrical surface away from the low beam section.

12. The light-emitting module as described in claim 11, characterized in that, The angle between the generatrix of the second cylindrical surface and the interface between the near beam and the far beam is α, which satisfies: 60°≤α≤80°.

13. The light-emitting module as described in claim 12, characterized in that, α＝70°。 14. A vehicle lamp, characterized by Includes the light-emitting module as described in any one of claims 8-13.

15. A vehicle characterized by comprising: Including the vehicle lights as described in claim 14.

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