Optical module and vehicle
By designing an optical module including the first optical module and the second optical module, the existing high and low beam integrated module has been solved, and the unbounded coverage of the high and low beam type has been achieved. and driving safety improvement.
Patent Information
- Application Number
- CN202421112278.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-21
- Publication Date
- 2025-02-18
- Estimated Expiration
- 2034-05-21
AI Technical Summary
The existing high and low beam integrated modules have problems such as large size, heavy weight, poor high and low beam combination effect, clear boundaries of high and low beam, and dark areas at the connection.
An optical module is designed, including a first optical module and a second optical module, and a low-beam cutoff line is formed through the first light-concentrating member. The second optical module and the first optical module do not share the focus, so that the high beam and the low beam are made Completely independent, forming a complete high-beam optical type with no cutoff line shape.
It realizes unbounded coverage of high and low beam type, improves driving safety, reduces cost and weight, and solves the dark area problem at the connection between high and low beams in traditional modules.
Smart Images
Figure CN222503600U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the field of vehicle lighting technology, and in particular to an optical module and a vehicle. Background Art
[0002] At present, the main market demands for vehicle lighting modules are compact size and high efficiency, and adapting to the styling requirements of various vehicle lamps while ensuring good optical performance.
[0003] The high and low beam integrated module is a headlight module that integrates the high and low beam functions, which meets the market demand for headlight modules and is widely used. However, since the high and low beam integrated module is more complex than the single function module, it still has some defects, such as large size and weight, and poor combination of high and low beams.
[0004] The mainstream high and low beam integrated module solution on the market currently consists of a module convex lens at the front and a secondary optical system at the rear. Figure 1 As shown in the figure, since the high beam light path reflected by the high beam reflector and the low beam light path reflected by the low beam reflector need to be imaged at the lens focus at the same time and then pass through the module lens, and the shape of the low beam cutoff line needs to be maintained, the high and low beam systems are generally arranged up and down, and the high and low beams are divided by a metal plate boundary. The high beam light pattern and low beam light pattern generated thereby do not interfere with each other, but when the low beam and high beam light patterns do not interfere with each other, it is easy to produce the following at the junction of the high and low beams. Figure 2 The black gap affects the driver's perception. Utility Model Content
[0005] In order to solve the above problems, the technical solutions adopted in the embodiments of the present application are as follows:
[0006] The present application discloses an optical module, comprising:
[0007] A first optical module comprises a first light source, a first light focusing component and a first inner lens, wherein the first light focusing component is used to focus the low beam light emitted by the first light source, and the first inner lens is arranged on the light exiting side of the first light focusing component, and is used to collimate the low beam light focused and emitted by the first light focusing component in the left-right direction;
[0008] a second optical module, arranged side by side with the first optical module and below the first optical module, comprising a second light source, a second light focusing component and a second inner lens, wherein the second light focusing component is used to focus the high beam light emitted by the second light source, and the second inner lens is arranged on the light exiting side of the second light focusing component and is used to deflect the high beam light focused and emitted by the second light focusing component toward the front and downward direction and toward the lower part of the collimating lens;
[0009] The collimating lens is arranged on the light-emitting side of the first inner lens and the second inner lens, and is used to collimate the low beam light entering the collimating lens after passing through the first inner lens and emit it downward, and to collimate the high beam light entering the collimating lens after passing through the second inner lens and emit it upward.
[0010] In some embodiments, the first focusing component includes a low-beam focusing device or a low-beam reflector, and the second focusing component includes a high-beam focusing device or a high-beam reflector.
[0011] In some embodiments, a heat sink is further included, located between the first light source and the second light source;
[0012] The first light source is arranged on the upper surface of the radiator, the second light source is arranged on the lower surface of the radiator, and the roots of the low-beam reflector and the high-beam reflector are both fixed on the radiator.
[0013] In some embodiments, the heat sink comprises a bent metal plate.
[0014] In some embodiments, the heat sink comprises:
[0015] A heat sink body, the heat sink body is used to carry the first light source and the second light source;
[0016] The back bending part is located behind the heat sink body and connected to the heat sink body, and a light source driving module is fixedly arranged on the surface of the back bending part.
[0017] In some embodiments, the front portion of the heat sink body is tilted upward, and the front portions of the low beam reflector and the high beam reflector are tilted upward accordingly.
[0018] In some embodiments, the front portion of the heat sink body is tilted upward at an angle of 5-15°.
[0019] In some embodiments, the first inner lens has a low beam incident surface and a low beam exit surface, the low beam incident surface has a plurality of convex curved surface structures arranged in sequence in the left and right directions, the horizontal cross-section shape of the low beam incident surface is an arc and the vertical longitudinal cross-section shape is a straight line; the low beam exit surface is a planar structure; and / or,
[0020] The second inner lens has a high beam light incident surface and a high beam light emitting surface, the high beam light incident surface is a planar structure, and the high beam light emitting surface is an inwardly concave arc surface structure.
[0021] In some embodiments, the collimating lens has an external light incident surface and an external light outgoing surface, the external light incident surface is a plane, the external light outgoing surface has a horizontal cross-sectional shape of a straight line and a vertical longitudinal cross-sectional shape of an arc.
[0022] A means of transportation comprises the optical module mentioned above.
[0023] The present application adopts the above-mentioned technical solution, and utilizes the first focusing component to form a low beam cutoff line, so that there is no need to set a shading plate to form the low beam cutoff line; and the second light module and the first light module do not share a focus, so that the high beam and the low beam are completely independent, forming a complete high beam light pattern without a cutoff line shape; when the low beam and high beam functions are turned on at the same time, the high beam light pattern can cover the low beam area, and the high and low beam patterns no longer have boundaries or connections, thereby solving the problem of clear boundaries between the high and low beams and dark areas at the connections of the high and low beam integrated module.
[0024] Compared with the traditional technology, the high beam enters from the lower part of the collimating lens and is emitted from the lower part of the collimating lens 9, so that the high beam light pattern is formed at a lower position. When conducting the China New Car Assessment Program (C-NCAP), the brightness score of the high beam in the lower position is significantly improved, thereby improving driving safety.
[0025] Compared with the traditional solution, the present application omits the sunshade, which reduces the cost and weight.
[0026] In order to make the above-mentioned objects, features and advantages of the present application more obvious and easy to understand, preferred embodiments are specifically cited below and described in detail with reference to the attached drawings. BRIEF DESCRIPTION OF THE DRAWINGS
[0027] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.
[0028] Figure 1 This is the optical principle diagram of the traditional high and low beam integrated module;
[0029] Figure 2 This is the effect diagram of the traditional high and low beam integrated module with high and low beam combined;
[0030] Figure 3 A schematic diagram of an optical module provided in one embodiment of the present application;
[0031] Figure 4 An exploded view of parts of an optical module provided in one embodiment of the present application;
[0032] Figure 5 A schematic diagram of an optical module provided by another embodiment of the present application;
[0033] Figure 6 for Figure 3 A schematic diagram of a high beam pattern display of an optical module;
[0034] Figure 7 for Figure 3 The high and low beam combination effect diagram of the optical module;
[0035] In the figure:
[0036] 1. first light source; 3. first light focusing component; 4. first inner lens; 41. low beam incident surface; 42. low beam emitting surface;
[0037] 5. Second light source; 7. Second focusing component; 8. Second inner lens; 81. High beam incident surface; 82. High beam emitting surface;
[0038] 9. Collimating lens; 91. External light incident surface; 92. External light outgoing surface;
[0039] 10. Radiator; 12. Back bending portion;
[0040] 20. Light source driving module;
[0041] 30. Lens bracket. DETAILED DESCRIPTION
[0042] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.
[0043] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for which protection is sought, but merely represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.
[0044] It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings. At the same time, in the description of this application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.
[0045] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.
[0046] In the description of this application, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "disposed" and "connected" 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 or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.
[0047] In conjunction with the accompanying drawings, some embodiments of the present application are described in detail below. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.
[0048] refer to Figure 3-Figure 4 , the present application provides an optical module, comprising:
[0049] The first optical module comprises a first light source 1, a first light focusing component 3 and a first inner lens 4, wherein the first light focusing component 3 is used to focus the low beam light emitted by the first light source 1, and the first inner lens 4 is arranged on the light exiting side of the first light focusing component 3, and is used to collimate the low beam light focused and emitted by the first light focusing component 3 in the left-right direction;
[0050] A second optical module is arranged side by side with the first optical module and below the first optical module, and comprises a second light source 5, a second focusing component 7 and a second inner lens 8, wherein the second focusing component 7 is used to focus the high beam light emitted by the second light source 5, and the second inner lens 8 is arranged on the light-emitting side of the second focusing component 7, and is used to deflect the high beam light focused and emitted by the second focusing component 7 toward the front and downward direction and toward the lower part of the collimating lens 9;
[0051] The collimating lens 9 is arranged on the light-emitting side of the first inner lens 4 and the second inner lens 8, and is used to collimate the low beam light entering the collimating lens 9 after passing through the first inner lens 4 and emit it downward, and to collimate the high beam light entering the collimating lens 9 after passing through the second inner lens 8 and emit it upward.
[0052] Specifically, for the low beam part, the first light source 1 emits light, which is converged by the first focusing component 3 and enters the first inner lens 4. Since the closer to the root of the first focusing component 3, the more concentrated the energy is, the root of the first focusing component 3 is cut out in the shape of a low beam cut-off line, thereby forming a low beam cut-off line; after the light enters the first inner lens 4, it is collimated in the left and right directions by the first inner lens 4, and then enters the collimating lens 9. After being collimated and focused downward by the collimating lens 9, the light is emitted, and the light forms a low beam light type at a lower position in the distance.
[0053] For the high beam part, since the first light module occupies the middle position of the collimating lens 9, if the high beam function also adopts the form of direct light forward, there is no space for it and it will be blocked by the low beam structure. Therefore, the design of this application arranges the second light module side by side below the first light module, and then uses the second inner lens 8 to first deflect the high beam light downward and hit the lower part of the collimating lens 9 (using the effective area of the lower part of the collimating lens 9), which can avoid interference with the first light module and the low beam light. After the high beam light enters the lower part of the collimating lens 9, the collimating lens 9 collimates the high beam light upward and emits it, forming a high beam light pattern at a higher position in the distance, such as Figure 6 shown.
[0054] It is worth pointing out that the second focusing component 7 is configured in a far-field form, and its function is to project the high beam emitted from the second light source 5 to present an image of the second light source 5. In the present application, the shaping effect on the high beam is relatively limited.
[0055] In the length design of the optical module, the collimating lens 9 is only responsible for the upper and lower collimation and is not limited by the focal length. There is no need to superimpose the focal length of the collimating lens 9 with the focal length of the focusing component as in the traditional design, so the total length of the entire module can be greatly shortened compared to the traditional solution.
[0056] The present application adopts the above-mentioned technical solution, and uses the first focusing component 3 to form a low beam cut-off line, so that there is no need to set a shading plate to form the low beam cut-off line; and the second light module and the first light module do not share a focus, so that the high beam and the low beam are completely independent, forming a complete high beam light type without a cut-off line shape; Figure 7 As shown, when the low beam and high beam functions are turned on at the same time, the high beam pattern can cover the low beam area, and there is no longer a boundary or connection between the high and low beam patterns, thus solving the problem of clear boundaries between the high and low beams and dark areas at the connection of the high and low beam integrated module.
[0057] like Figure 3Compared with the conventional technology, the high beam enters from the lower part of the collimating lens 9 and is emitted from the lower part of the collimating lens 9, so that the high beam light pattern formed is located lower (such as Figure 6 ), when conducting the China New Car Assessment Program (C-NCAP), the brightness score of the high beam in the lower position was significantly improved, improving driving safety.
[0058] Compared with the traditional solution, the present application omits the sunshade, which reduces the cost and weight.
[0059] like Figure 4 In some embodiments, the first focusing component 3 includes a low beam focusing device or a low beam reflector, and the second focusing component 7 includes a high beam focusing device or a high beam reflector.
[0060] Specifically, since the energy is more concentrated closer to the root of the first focusing component 3, a low beam cut-off line is cut out at the root of the low beam concentrator or the low beam reflector, and the light emitted by the first light source 1 is converged through the low beam concentrator or the low beam reflector into the first inner lens 4 and the collimating lens 9, thereby projecting a low beam light pattern with a low beam cut-off line. At this time, the low beam cut-off line is at the upper edge of the low beam light pattern.
[0061] like Figure 3 , in some embodiments, further comprising a heat sink 10, located between the first light source 1 and the second light source 5;
[0062] The first light source 1 is disposed on the upper surface of the heat sink 10 , the second light source 5 is disposed on the lower surface of the heat sink 10 , and the roots of the low-beam reflector and the high-beam reflector are both fixed to the heat sink 10 .
[0063] Specifically, the first light source 1 and the second light source 5 can be a low-beam LED circuit board and a high-beam LED circuit board, respectively. The roots of the low-beam reflector and the high-beam reflector of the present application are both fixed to the radiator 10, that is, the installation openings of the low-beam reflector and the high-beam reflector are designed to be opposite to each other. At the same time, the first light source 1 is arranged on the upper surface of the radiator 10, and the second light source 5 is arranged on the lower surface of the radiator 10. The low-beam module and the high-beam module share one radiator 10, which can reduce one radiator 10, reduce costs, and significantly reduce the weight of the entire module.
[0064] like Figure 4 In some embodiments, the heat sink 10 includes a bent metal plate.
[0065] Specifically, the heat sink 10 between the low-beam and high-beam modules is made of a bent metal plate, such as a bent aluminum plate. The plate-like structure of the bent metal plate is bonded to the surface of the low-beam LED circuit board of the first light source 1 and the high-beam LED circuit board of the second light source 5. The surface-to-surface contact has a large heat conduction area and a fast heat conduction speed. The bent metal plate is clamped between the second light source 5 and the first light source 1, and can quickly collect heat from the two light sources and conduct it to the outside air. The heat dissipation effect is good and the heat dissipation speed is fast. Due to the good heat dissipation, the light source is not prone to light decay.
[0066] Moreover, the plate-shaped bent metal plate is significantly lighter than the ADC12 die-casting used in the traditional solution, and the cost can be further reduced.
[0067] like Figure 5 In some other embodiments of the present application, the radiator 10 includes:
[0068] A heat sink body, the heat sink body is used to carry the first light source 1 and the second light source 5;
[0069] The back bending portion 12 is located behind the heat sink body and connected to the heat sink body, and a light source driving module 20 is fixedly disposed on the surface of the back bending portion 12 .
[0070] Specifically, in the present embodiment, the light source driving module 20 is integrated in the back bending portion 12 on the back of the module radiator 10, becoming a part of the high and low beam module, and the back bending portion 12 of the radiator 10 is used to dissipate heat for the light source driving module 20. The back bending portion 12 is in contact with the surface of the light source driving module 20, and the surface-to-surface contact heat conduction area is large and the heat conduction speed is fast; thereby avoiding the need to separately arrange a driving heat sink for the light source driving module, and reducing weight and cost; at the same time, for the module, the light source driving module 20 can be connected to the vehicle body and directly powered by the vehicle body, truly realizing plug-and-play, and having great advantages in convenience and versatility.
[0071] like Figure 3 In some embodiments, the front portion of the heat sink body is tilted upward, and the front portions of the low beam reflector and the high beam reflector are tilted upward accordingly.
[0072] Specifically, after adopting this setting, the low beam reflector and the high beam reflector are also arranged in accordance with the shape, and the front part of the low beam reflector is tilted upward in accordance with the shape so that the low beam reflected by the low beam reflector is emitted forward and upward, which is conducive to separating from the high beam and avoiding interference with the second light module and the high beam.
[0073] And because the front part of the high beam reflector is also tilted upward, the second inner lens 8 needs to be arranged upward as the high beam is emitted upward and forward, which is conducive to leaving enough space for the high beam to be deflected forward and downward. (If the second inner lens 8 is designed to be too low, the high beam deflected forward and downward will irradiate the lens bracket 30 outside the collimating lens 9 and cannot enter the collimating lens 9, so that the high beam shape cannot be presented completely or the brightness is lost.)
[0074] As a preferred embodiment, the front part of the heat sink body is tilted upward at an angle of 5-15 degrees. The space left is sufficient to deflect the high beam forward and downward, and to keep the low beam and high beam at a suitable height in the space surrounded by the lens bracket 30, so that the low beam is not too high due to the tilt angle, and the high beam does not hit the middle of the collimating lens 9 and interfere with the low beam, and the effective area at the bottom of the collimating lens 9 cannot be used.
[0075] like Figure 4 In some embodiments, the first inner lens 4 has a low beam incident surface 41 and a low beam exit surface 42, the low beam incident surface 41 has a plurality of raised curved surface structures arranged in sequence in the left-right direction, and the low beam exit surface 42 is a planar structure.
[0076] Specifically, the horizontal cross-sectional shape of the low beam incident surface 41 of the first inner lens 4 is an arc and the vertical longitudinal cross-sectional shape extending in the front-to-back direction is a straight line, so that there is a focus in the left and right directions and the collimation and focusing in the left and right directions can be controlled, and there is no focus in the up and down directions and there is no convergence effect.
[0077] like Figure 4 In some embodiments, the second inner lens 8 has a high beam incident surface 81 and a high beam emitting surface 82, wherein the high beam incident surface 81 is a planar structure and the high beam emitting surface 82 is an inwardly concave arc structure. The inwardly concave high beam emitting surface 82 can deflect the high beam light forward and downward and toward the lower part of the collimating lens 9.
[0078] like Figure 4 In some embodiments, the collimating lens 9 has an external light incident surface 91 and an outgoing light surface 92, the external light incident surface 91 is a plane, and the outgoing light surface 92 is a convex curved surface; that is, the collimating lens 9 uses a cylindrical mirror, the horizontal cross-sectional shape of the outgoing light surface 92 is a straight line and the vertical longitudinal cross-sectional shape extending in the front-to-back direction is an arc-shaped, which is arranged in the front part of the module, has a focus in the up-down direction, and collimates the light in the up-down direction; there is no focus in the left-right direction and there is no converging effect.
[0079] like Figure 4In some embodiments, the wall thickness of the collimating lens 9 in the up and down directions is a gradual structure, and gradually decreases from the middle to the upper and lower sides, and the collimating lens 9 in the left and right directions is a structure with equal wall thickness.
[0080] Since the collimating lens 9 is close to a transparent piece with equal wall thickness in the left-right direction, this solution optimizes the chromatic aberration of the light pattern.
[0081] In some embodiments, the first light source 1 is at the focal position of the first inner lens 4, and the second light source 5 is at the focal position of the second inner lens 8. This design allows most of the light emitted by the light source to enter the corresponding inner lens after being converged, ensuring a sufficiently large light intensity.
[0082] The present application also provides a vehicle, comprising any of the optical modules described above.
[0083] The above description is only the preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.
[0084] It will be apparent to those skilled in the art that the present application is not limited to the details of the exemplary embodiments described above, and that the present application can be implemented in other specific forms without departing from the spirit or essential features of the present application. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the present application is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present application. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.
Claims
1. An optical module, characterized in that: include: A first optical module comprises a first light source, a first light focusing component and a first inner lens, wherein the first light focusing component is used to focus the low beam light emitted by the first light source, and the first inner lens is arranged on the light exiting side of the first light focusing component, and is used to collimate the low beam light focused and emitted by the first light focusing component in the left-right direction; a second optical module, arranged side by side with the first optical module and below the first optical module, comprising a second light source, a second light focusing component and a second inner lens, wherein the second light focusing component is used to focus the high beam light emitted by the second light source, and the second inner lens is arranged on the light exiting side of the second light focusing component and is used to deflect the high beam light focused and emitted by the second light focusing component toward the front and downward direction and toward the lower part of the collimating lens; The collimating lens is arranged on the light-emitting side of the first inner lens and the second inner lens, and is used to collimate the low beam light entering the collimating lens after passing through the first inner lens and emit it downward, and to collimate the high beam light entering the collimating lens after passing through the second inner lens and emit it upward.
2. The optical module according to claim 1, characterized in that: The first focusing component includes a low-beam focusing device or a low-beam reflector, and the second focusing component includes a high-beam focusing device or a high-beam reflector.
3. The optical module according to claim 2, characterized in that: Also included is a heat sink located between the first light source and the second light source; The first light source is arranged on the upper surface of the radiator, the second light source is arranged on the lower surface of the radiator, and the roots of the low-beam reflector and the high-beam reflector are both fixed on the radiator.
4. The optical module according to claim 3, characterized in that: The heat sink comprises a bent metal plate.
5. The optical module according to claim 3, characterized in that: The radiator comprises: A heat sink body, the heat sink body is used to carry the first light source and the second light source; The back bending part is located behind the heat sink body and connected to the heat sink body, and a light source driving module is fixedly arranged on the surface of the back bending part.
6. The optical module according to claim 5, characterized in that: The front part of the heat dissipation plate body is inclined upward, and the front parts of the low beam reflector and the high beam reflector are inclined upward accordingly.
7. The optical module according to claim 6, characterized in that: The front part of the heat sink body is inclined upward at an angle of 5-15°.
8. The optical module according to claim 1, characterized in that: The first inner lens has a low beam incident surface and a low beam emitting surface, the low beam incident surface has a plurality of convex curved surface structures arranged in sequence in the left and right directions, the horizontal cross-section shape of the low beam incident surface is an arc and the vertical longitudinal cross-section shape is a straight line; the low beam emitting surface is a plane structure; and / or, The second inner lens has a high beam light incident surface and a high beam light emitting surface, the high beam light incident surface is a planar structure, and the high beam light emitting surface is an inwardly concave arc surface structure.
9. The optical module according to claim 1, characterized in that: The collimating lens has an external light incident surface and an external light outgoing surface, the external light incident surface is a plane, the external light outgoing surface has a horizontal cross-sectional shape of a straight line and a vertical longitudinal cross-sectional shape of an arc.
10. A means of transport, characterized in that: Comprising the optical module as described in any one of claims 1-9.