Flexible circuit board, optical module and vehicle lamp

Abstract

The utility model discloses a flexible circuit board, an optical module and a vehicle lamp. The flexible circuit board comprises at least two flexible sections; the flexible section is provided with a light-emitting part and a connecting part, and the light-emitting part is arranged in a step shape; the main light-emitting directions of the light-emitting units are parallel to each other; in the two flexible sections which are connected with each other, the light-emitting part at the end of one flexible section is a first light-emitting part, the light-emitting part at the end of the other flexible section is a second light-emitting part, the first light-emitting part and the second light-emitting part are mutually spaced in the main light-emitting direction of the light-emitting unit to form a containing space, and the connecting structure is arranged in the containing space. The single flexible section is easier to process and produce, so that the production cost and the production difficulty are reduced; the flexible sections can be conveniently installed and operated, the assembling efficiency is improved, the first light-emitting part and the second light-emitting part are mutually spaced, the arrangement space of the connecting structure and the operation space for connecting the two flexible sections are provided, and the internal space of the automobile lamp can be fully utilized.

Description

Technical Field

[0001] This application relates to the field of vehicle lighting technology, and in particular to a flexible circuit board, an optical module, and a vehicle lamp. Background Technology

[0002] As people's demands for aesthetics and performance increase, the design of car lights has become more diverse and personalized. Car lights often feature complex shapes with large angles. To meet the lighting requirements of different headlight shapes, flexible circuit boards are often used to achieve the lighting needs of complex shapes. However, as the complexity of the headlight shapes increases, the flexible circuit boards also become irregular. This can cause the flexible circuit boards to bend excessively during installation, resulting in damage. Furthermore, the complex shapes are not conducive to smooth installation operations, affecting assembly efficiency and quality.

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

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

[0005] According to one aspect of this application, a flexible circuit board is provided, comprising at least two flexible segments, one of which is electrically connected to the other through a connecting structure; each flexible segment has a plurality of light-emitting portions and a plurality of connecting portions, the light-emitting portions being arranged in a stepped manner, and the connecting portions being connected between adjacent light-emitting portions; each light-emitting portion is provided with a light-emitting unit, the main light-emitting directions of the light-emitting units being parallel to each other; in the two interconnected flexible segments, the light-emitting portion at the end of one flexible segment is a first light-emitting portion, and the light-emitting portion at the end of the other flexible segment is a second light-emitting portion, the main light-emitting direction of the first light-emitting portion being parallel to the main light-emitting direction of the second light-emitting portion, and the first light-emitting portion and the second light-emitting portion being spaced apart from each other in the main light-emitting direction of the light-emitting unit to form an accommodating space, the connecting structure being disposed in the accommodating space.

[0006] In one embodiment, the connection structure includes a male connector and a female connector. The female connector is disposed on the surface of the first light-emitting part facing the second light-emitting part, and the male connector is disposed on the surface of the second light-emitting part facing the first light-emitting part via a wire. The male connector is inserted into the female connector to realize the electrical connection between the two flexible segments.

[0007] In one embodiment, a reference plane perpendicular to the main light emission direction of the light-emitting unit is used as a reference plane, and the flexible circuit board is disposed on one side of the reference plane; the two ends of the flexible segment are the initial end and the final end, and in the main light emission direction of the light-emitting unit, the distance between the light-emitting part and the reference plane gradually increases from the initial end to the final end; the portion of the light-emitting part near the final end is provided with at least two light-emitting units.

[0008] According to another aspect of this application, an optical module is provided, including any of the flexible circuit boards described above.

[0009] In one embodiment, the surface of the light-emitting part facing away from the light-emitting unit is provided with a reinforcing substrate.

[0010] In one embodiment, the mounting portion and / or the mounting member having heat dissipation holes on the portion opposite to the light-emitting portion.

[0011] In one embodiment, the device further includes a light guide component and a printed circuit board. The light guide component is connected to the mounting bracket and is configured to receive light emitted from the light-emitting unit of the printed circuit board. The main body has a mounting hole, through which the light guide component passes. The light-emitting surface of the light guide component and the flexible circuit board are located on the same side of the mounting bracket, and the printed circuit board is disposed on the side of the mounting bracket opposite to the flexible circuit board.

[0012] In one embodiment, a control board is further included, which is disposed on the side of the light guide component away from the printed circuit board; the flexible circuit board and the printed circuit board are electrically connected to the control board respectively; the mounting bracket is provided with a connection through hole, and the control board is electrically connected to the flexible circuit board through a wire passing through the connection through hole.

[0013] In one embodiment, a decorative ring is further included, which is fitted onto the light guide component.

[0014] According to another aspect of this application, a vehicle lamp is provided, including any of the optical modules described above.

[0015] The beneficial effects of this application are as follows: Based on factors such as the length and shape of the flexible circuit board, the flexible circuit board is divided into multiple flexible segments. Individual flexible segments are easier to process and produce, reducing production costs and difficulties. Furthermore, the overall length of each flexible segment is relatively short, facilitating installation of each segment in the vehicle headlight and improving assembly efficiency. After prolonged use, if a flexible segment becomes damaged, only the damaged segment needs to be replaced; there is no need to disassemble the remaining segments, reducing both maintenance and repair costs and difficulties. Additionally, the spacing between the first and second light-emitting parts provides space for the connection structure and the operation space for connecting the two flexible segments, fully utilizing the internal space of the vehicle headlight. Attached Figure Description

[0016] 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.

[0017] Figure 1 This is a schematic diagram of a flexible circuit board provided in an embodiment of this application.

[0018] Figure 2 yes Figure 1 Another perspective illustration.

[0019] Figure 3 yes Figure 2 Enlarged view of point A in the middle.

[0020] Figure 4 yes Figure 1 Another perspective illustration.

[0021] Figure 5 This is a schematic diagram of an optical module provided in an embodiment of this application.

[0022] Figure 6 This is a schematic diagram of a mounting bracket and mounting component provided in an embodiment of this application.

[0023] Figure 7 yes Figure 6 Exploded view.

[0024] Figure 8 This is a schematic diagram of the arrangement of a control board, a light guide component, and a printed circuit board provided in an embodiment of this application.

[0025] Figure 9 This is a cross-sectional view of a vehicle lamp provided in an embodiment of this application.

[0026] In the picture:

[0027] 10. Flexible circuit board; 11. Flexible segment; 111. Light-emitting part; 111a. First light-emitting part; 111b. Second light-emitting part; 112. Connecting part; 113. Initial end; 114. Ending end; 115. Positioning hole; 12. Light-emitting unit;

[0028] 20. Connection structure; 21. Male connector; 22. Female connector;

[0029] 30. Storage space;

[0030] 40. Wire;

[0031] 50. Mounting bracket; 51. Main body; 511. Mounting hole; 52. Mounting part; 521. Positioning post; 53. Connecting through hole; 54. Mounting groove;

[0032] 60. Installation components;

[0033] 70. Detachable structure;

[0034] 80. Reinforced substrate;

[0035] 90. Heat dissipation holes;

[0036] 100. Light guide components;

[0037] 110. Printed circuit board;

[0038] 120. Control panel;

[0039] 130. Ornament;

[0040] 140. Optical glasses. Detailed Implementation

[0041] 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.

[0042] 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.

[0043] The flexible circuit board, optical module, and vehicle lamp of this application will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0044] In the prior art, the irregular shape of flexible circuit boards causes them to bend excessively during installation, resulting in damage. Furthermore, the complex shape hinders the smooth progress of installation operations, affecting assembly efficiency and quality.

[0045] To address the aforementioned technical problems, this application provides a flexible circuit board comprising at least two flexible segments, one of which is electrically connected to the other via a connecting structure. Each flexible segment has multiple light-emitting portions and multiple connecting portions. The light-emitting portions are arranged in a stepped manner, and the connecting portions connect adjacent light-emitting portions. Each light-emitting portion has a light-emitting unit, and the main light-emitting directions of the light-emitting units are parallel to each other. In the two interconnected flexible segments, the light-emitting portion at the end of one flexible segment is a first light-emitting portion, and the light-emitting portion at the end of the other flexible segment is a second light-emitting portion. The main light-emitting direction of the first light-emitting portion is parallel to the main light-emitting direction of the second light-emitting portion, and the first and second light-emitting portions are spaced apart in the main light-emitting directions of the light-emitting units to form an accommodating space. The connecting structure is disposed within the accommodating space. This will be described in detail below.

[0046] See Figure 1-3 In one embodiment, the flexible circuit board 10 includes two flexible segments 11, one of which is electrically connected to the other through a connecting structure 20. Each flexible segment 11 has a plurality of light-emitting parts 111 and a plurality of connecting parts 112. The light-emitting parts 111 are arranged in a stepped manner, and the connecting parts 112 are connected between adjacent light-emitting parts 111. Each light-emitting part 111 is provided with a light-emitting unit 12, and the main light-emitting directions of the light-emitting units 12 are parallel to each other. In the two interconnected flexible segments 11, the light-emitting part 111 at the end of one flexible segment 11 is a first light-emitting part 111a, and the light-emitting part 111 at the end of the other flexible segment 11 is a second light-emitting part 111b. The main light-emitting direction of the first light-emitting part 111a is parallel to the main light-emitting direction of the second light-emitting part 111b, and the first light-emitting part 111a and the second light-emitting part 111b are spaced apart from each other in the main light-emitting direction of the light-emitting unit 12 to form an accommodating space 30. The connecting structure 20 is disposed in the accommodating space 30.

[0047] Based on factors such as the length and shape of the flexible circuit board 10, the flexible circuit board 10 is divided into multiple flexible segments 11. Individual flexible segments 11 are easier to process and produce, reducing production costs and difficulties. Moreover, the overall length of each individual flexible segment 11 is relatively short, which facilitates the installation of each flexible segment 11 when it is installed in the vehicle headlight, improving assembly efficiency. After long-term use, if the flexible segments 11 are damaged, only the damaged flexible segments 11 need to be replaced, without disassembling the remaining flexible segments 11, reducing both the cost and difficulty of later maintenance and repair.

[0048] In some embodiments, the flexible circuit board 10 can be elongated. During installation, the excessive length of the flexible circuit board 10 makes the overall installation operation difficult. It may also cause damage to the flexible circuit board 10 due to its excessive length, or require multiple workers to install the flexible circuit board 10 simultaneously, resulting in wasted manpower. Therefore, the elongated flexible circuit board 10 can be divided into multiple flexible segments 11, and the electrical connection between each flexible segment 11 can be achieved through the connecting structure 20, which effectively reduces the installation difficulty of the flexible circuit board 10.

[0049] In some embodiments, in order to meet the diversity of vehicle light use and the personalization of design, the shape of the vehicle light is not a regular shape, such as a C-shape; the shape of the flexible circuit board 10 will also be complex accordingly. According to the shape of the vehicle light, the flexible circuit board 10 is divided into multiple flexible segments 11, which reduces the production difficulty and assembly difficulty of the flexible circuit board 10.

[0050] In addition, in the two interconnected flexible segments 11, the first light-emitting part 111a and the second light-emitting part 111b are spaced apart from each other in the main light-emitting direction of the light-emitting unit 12 to form an accommodating space 30, and the connecting structure 20 is disposed in the accommodating space 30. The spaced apart first light-emitting part 111a and second light-emitting part 111b ensures that the flexible circuit board 10 is arranged in a stepped manner. This arrangement provides space for the arrangement of the connecting structure 20 and the operating space for connecting the two flexible segments 11, which can make full use of the internal space of the headlight. Furthermore, the connection structure 20 is disposed in the accommodating space 30 and will not affect the propagation of the light emitted by the light-emitting unit 12, which is beneficial to improving the overall lighting effect of the headlight.

[0051] The flexible circuit board 10 is arranged in a stepped shape, ensuring that the main light emission direction of all light-emitting units 12 is parallel. All light-emitting units 12 illuminate in one direction, and the light is evenly scattered by other components. This ensures that the headlights with large angles (partially located at the rear of the vehicle, and partially located on the side of the vehicle) emit light uniformly without noticeable graininess, while also meeting regulatory requirements. If the flexible circuit board 10 is not stepped, some light from headlights with large angles will be directed towards the side of the vehicle, resulting in substandard light distribution. For example, in the application of position lights, the metering range of the position lights is based on the HH line, extending 15° vertically, 45° to the left (inner side of the vehicle), and 80° to the right (outer side of the vehicle). When the headlight angle is large, the conventional arrangement of the printed circuit board 110 (using FR4 rigid board material) will direct the light towards the side of the vehicle, leaving no light at the left 45° position, resulting in substandard light distribution.

[0052] It should be noted that the main light emission direction of the light-emitting unit 12 is as follows: Figure 4 The center direction is shown as X, and the same applies below.

[0053] See Figure 3 In one embodiment, the connection structure 20 includes a male connector 21 and a female connector 22. The female connector 22 is disposed on the surface of the first light-emitting part 111a facing the second light-emitting part 111b, and the male connector 21 is disposed on the surface of the second light-emitting part 111b facing the first light-emitting part 111a via a wire 40. The male connector 21 is inserted into the female connector 22 to realize the electrical connection between the two flexible segments 11.

[0054] The two flexible segments 11 are electrically connected by the male connector 21 and the female connector 22 that are plugged into each other. The male connector 21 is connected by a wire 40. When connecting the male connector 21 and the female connector 22, the wire 40 provides a certain assembly margin, which is beneficial to the connection operation. Moreover, the connection structure 20 is set on the surfaces of the first light-emitting part 111a and the second light-emitting part 111b that are opposite each other (the female connector 22 is set on the surface of the first light-emitting part 111a facing the second light-emitting part 111b, and the male connector 21 is set on the surface of the second light-emitting part 111b facing the first light-emitting part 111a). This can avoid the connection structure 20 from blocking the light emitted by the light-emitting unit 12 and improve the lighting effect of the vehicle headlight.

[0055] In some embodiments, the mounting positions of the male connector 21 and the female connector 22 may be interchanged, or the electrical connection between the two flexible segments 11 may be achieved through other forms of connection, not limited to these.

[0056] See Figure 4In one embodiment, a reference plane perpendicular to the main light emission direction of the light-emitting unit 12 is used as a reference plane, and a flexible circuit board 10 is disposed on one side of the reference plane; the two ends of the flexible segment 11 are the initial end 113 and the final end 114. In the main light emission direction of the light-emitting unit 12, the distance between the light-emitting part 111 and the reference plane gradually increases from the initial end 113 to the final end 114; the portion of the light-emitting part 111 near the final end 114 is provided with at least two light-emitting units 12.

[0057] The distance between the light-emitting part 111 near the end 114 and the reference surface is relatively large. In actual use, the light emitted by the light-emitting unit 12 on the far-away light-emitting part 111 needs to travel a longer distance to illuminate the reference surface (i.e., the illumination surface when the headlight is lit), which will result in energy loss. This will cause the contrast of the illumination area formed by the headlight on the reference surface to be inconsistent and the lighting effect to be uneven. By setting more light-emitting units 12 on the far-away light-emitting part 111, the uniformity of the lighting effect can be ensured.

[0058] It should be noted that the reference plane is as follows: Figure 4 As shown in the middle plane λ, the same applies below; the number of light-emitting units 12 provided in each light-emitting part 111 can be two, three, etc., depending on factors such as the area of ​​the light-emitting part 111 and the distance to the reference plane.

[0059] See Figure 5-7 as well as Figure 9 On the other hand, this application also relates to an optical module, including any of the aforementioned flexible circuit boards 10; the optical module also includes a mounting bracket 50 and a mounting member 60, the mounting bracket 50 includes a main body 51 and a mounting part 52, the mounting part 52 is configured to mount a flexible segment 11; the mounting member 60 is provided, and the mounting member 60 is connected to the main body 51 through a detachable structure 70; each mounting member 60 is configured to mount a flexible segment 11.

[0060] By using the mounting component 60, some flexible segments 11 can be installed by first mounting them onto the mounting component 60, then mounting the mounting component 60 onto the main body 51, and finally electrically connecting the flexible segments 11 mounted on the mounting component 60 with those mounted on the mounting part 52. This achieves the installation of the flexible circuit board 10, reducing the installation difficulty of the flexible segments 11 and improving the installation efficiency and quality (the flexible segments 11 fit well with the mounting component 60, thus ensuring the stability of the light-emitting unit 12 installation and improving the lighting effect of the headlight). In some complex headlight designs, the flexible segments 11 may face challenges in installation due to the headlight's shape, such as limited installation space. The flexibility of the flexible segments further complicates the installation process.

[0061] The detachable mounting part 60 allows the flexible segment 11 to be pre-installed on the mounting part 60. The operation of installing the flexible segment 11 on the mounting part 60 is not affected by the shape of the headlight (the space for installation is not limited), and the flexible segment 11 can fit better on the mounting part 60. The installed mounting part 60 (with the flexible segment 11 installed) is then installed on the main body 51 to realize the installation operation of the flexible circuit board 10 on the mounting bracket 50.

[0062] For example Figure 5 In the embodiment shown, the mounting portion 52 at the bottom of the mounting bracket 50 is wider, ensuring a tight fit between the flexible segment 11 and the mounting portion 52. However, above the mounting bracket 50, the flexible segment 11 needs to be installed in the mounting groove 54 with a narrow vertical spacing. This makes installation of the flexible segment 11 inconvenient, compromises its stability, and increases its susceptibility to excessive bending and damage, thus increasing production costs. In this embodiment, by setting up the mounting component 60, the flexible segment 11 is installed on the mounting component 60 (at this time, the mounting component 60 is far from the mounting groove 54, providing sufficient installation space). The mounting component 60 is then connected to the mounting groove 54 via a detachable structure 70. The rigidity of the mounting component 60 ensures smooth installation while maintaining the integrity of the flexible segment 11.

[0063] It should be noted that the surfaces of the mounting part 52 and the mounting component 60 used for mounting the flexible segment 11 are also stepped, which can better fit the flexible segment 11 and ensure the stability of the flexible segment 11 after installation; the separate mounting component 60 is easier to process and form, reducing production costs and production difficulty. The detachable structure 70 is connected by screws in this embodiment, which is simple in structure and reliable in connection. In some embodiments, it can also be other forms of connection, not limited to this.

[0064] In some embodiments, each light-emitting part 111 of the flexible segment 11 is provided with a positioning hole 115, and a positioning post 521 is provided on the mounting part 52 (mounting member 60). The installation position of the flexible segment 11 is determined by inserting the positioning post 521 into the positioning hole 115. The fixing method between the flexible segment 11 and the mounting part 52 (mounting member 60) can be riveting, gluing, etc., which are not specifically limited here.

[0065] See Figure 4 In one embodiment, the surface of the light-emitting part 111 facing away from the light-emitting unit 12 is provided with a reinforcing substrate 80.

[0066] By strengthening the substrate 80, the support for the light-emitting part 111 can be effectively enhanced, which facilitates the installation and operation of the flexible section 11 while protecting the flexible section 11.

[0067] In some embodiments, the reinforcing substrate 80 can be a metal plate, which can be used for heat conduction to guide the heat generated by the light-emitting unit 12 away in a timely manner, effectively increasing the service life of the vehicle lamp.

[0068] See Figure 7 In one embodiment, the mounting portion 52 and the mounting member 60 are provided with heat dissipation holes 90 on the portions opposite to the light-emitting portion 111.

[0069] By setting the heat dissipation hole 90, the heat generated by the light-emitting unit 12 can be conducted to the side of the mounting bracket 50 away from the light-emitting unit 12 in a timely manner, avoiding heat accumulation and effectively increasing the service life of the vehicle light.

[0070] It should be noted that through holes are provided on the main body 51 portion corresponding to the heat dissipation through holes 90 provided on the mounting component 60, ensuring that heat is transferred to the side of the mounting bracket 50 away from the light-emitting unit 12; in some embodiments, it is not necessary for each light-emitting part 111 to have a heat dissipation through hole 90 on the opposite portion, such as Figure 7 In the embodiment shown, a light-emitting unit 12 is provided on the right side of the bottom mounting part 52, and the vertical spacing of this part of the mounting part 52 is relatively large, which is conducive to air circulation. Therefore, heat dissipation holes 90 are not required here to ensure the overall structural strength of the mounting bracket 50. However, this is not the only possibility, but can be considered in conjunction with the specific structural design of the mounting bracket 50 and the mounting component 60.

[0071] See Figure 8 In one embodiment, the optical module further includes a light guide component 100 and a printed circuit board 110. The light guide component 100 is connected to the mounting bracket 50 and is configured to receive light emitted from the light-emitting unit 12 of the printed circuit board 110. The main body 51 is provided with a mounting hole 511, and the light guide component 100 is inserted through the mounting hole 511. The light-emitting surface of the light guide component 100 and the flexible circuit board 10 are located on the same side of the mounting bracket 50. The printed circuit board 110 is disposed on the side of the mounting bracket 50 away from the flexible circuit board 10.

[0072] The mounting hole 511 provides light-emitting space for the light-emitting surface of the light guide component 100. At the same time, since the printed circuit board 110 is located on the side of the mounting bracket 50 away from the flexible circuit board 10, the mounting bracket 50 has a shielding effect on the printed circuit board 110. When the vehicle headlight is static, the printed circuit board 110 and other components behind the mounting bracket 50 (on the side away from the flexible circuit board 10) are not visible, so that the vehicle headlight has a good static appearance and improves the quality of the vehicle headlight.

[0073] In one embodiment, the optical module further includes a control board 120, which is disposed on the side of the light guide component 100 away from the printed circuit board 110; the flexible circuit board 10 and the printed circuit board 110 are electrically connected to the control board 120 respectively; the mounting bracket 50 is provided with a connection through hole 53, and the control board 120 is electrically connected to the flexible circuit board 10 through a wire 40 passing through the connection through hole 53.

[0074] The control board 120 and the printed circuit board 110 are respectively located on opposite sides of the light guide component 100, which can ensure sufficient spacing between the control board 120 and the printed circuit board 110, making it convenient to connect the wires 40 between the control board 120 and the printed circuit board 110. This avoids the wires 40 between the control board 120 and the printed circuit board 110 from being bent and messy due to the limited space, and makes full use of the internal space of the vehicle light.

[0075] The control board 120 is electrically connected to the flexible circuit board 10 through the connecting through hole 53, which avoids arranging the wire 40 on the light-emitting side (the side facing the flexible circuit board 10) of the mounting bracket 50, reduces the length of the wire 40 required for the connection between the control board 120 and the flexible circuit board 10, and avoids observing the connecting wire 40 when the headlight is static, so that the headlight has a good static appearance and improves the quality of the headlight.

[0076] In some embodiments, the control board 120 can also control the brightness of the light-emitting unit 12. For example, in an embodiment where the flexible circuit board 10 is applied to the position lights, some of the position lights are located on the vehicle body, and the remaining part is located on the tailgate. When the tailgate is open, the position lights located on the vehicle body are at a high brightness level, which meets the optical regulatory requirements. When the tailgate is closed, the position lights located on the vehicle body are at a low brightness level. At this time, the position lights located on the vehicle body cooperate with the position lights located on the tailgate to meet the optical regulatory requirements. At this time, in terms of appearance, the brightness of the two position lights is the same, which meets the visual requirements.

[0077] See Figure 9 In one embodiment, the optical module further includes a decorative ring 130, which is fitted onto the light guide component 100.

[0078] When the headlight is stationary, the remaining components behind the printed circuit board 110 and the mounting bracket 50 (the side facing away from the flexible circuit board 10) are avoided from being observed, so that the headlight has a good static appearance and improves the quality of the headlight.

[0079] On the other hand, this application also relates to a vehicle lamp, including any of the aforementioned optical modules, the vehicle lamp further including a housing and a lens 140 covering the housing.

[0080] Using the technical solution provided in this application embodiment, the flexible circuit board 10 is divided into multiple flexible segments 11 based on factors such as its length and shape. Individual flexible segments 11 are easier to process and produce, reducing production costs and difficulties. Furthermore, the overall length of each flexible segment 11 is relatively short, which facilitates the installation of each flexible segment 11 when it is installed in the vehicle headlight, improving assembly efficiency. After prolonged use, if a flexible segment 11 is damaged, only the damaged flexible segment 11 needs to be replaced, without disassembling the remaining flexible segments 11, reducing both the cost and difficulty of subsequent maintenance and repair. In addition, the first light-emitting part 111a and the second light-emitting part 111b are spaced apart from each other, providing space for the arrangement of the connecting structure 20 and the operation space for connecting the two flexible segments 11, thus making full use of the internal space of the vehicle headlight.

[0081] 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.

[0082] 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.

[0083] The flexible circuit board, optical module, and vehicle light 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 flexible circuit board, characterized by, The flexible circuit board comprises at least two flexible segments, one of which is electrically connected to the other through a connecting structure; The flexible segment has a plurality of light-emitting portions and a plurality of connecting portions, the light-emitting portions are arranged in a stepped manner, and the connecting portions are connected between adjacent light-emitting portions; each light-emitting portion is provided with a light-emitting unit, and the main light-emitting directions of the light-emitting units are parallel to each other; In the two flexible segments connected to each other, the light-emitting portion at one end of one flexible segment is a first light-emitting portion, the light-emitting portion at one end of the other flexible segment is a second light-emitting portion, the main light-emitting direction of the first light-emitting portion is parallel to the main light-emitting direction of the second light-emitting portion, and the first light-emitting portion and the second light-emitting portion are spaced apart from each other in the main light-emitting direction of the light-emitting unit to form a receiving space, and the connecting structure is arranged in the receiving space.

2. The flexible circuit board of claim 1, wherein The connecting structure comprises a male connector and a female connector, the female connector is arranged on the surface of the first light-emitting portion facing the second light-emitting portion, and the male connector is arranged on the surface of the second light-emitting portion facing the first light-emitting portion through a wire; the male connector is inserted into the female connector to achieve electrical connection between the two flexible segments.

3. The flexible circuit board of claim 1, wherein A reference plane perpendicular to the main light-emitting direction of the light-emitting unit is used as a reference plane, and the flexible circuit board is arranged on one side of the reference plane; The two ends of the flexible segment are an initial end and a terminal end, and in the main light-emitting direction of the light-emitting unit, the distance between the light-emitting portion and the reference plane gradually increases from the initial end to the terminal end; The light-emitting portion near the terminal end is provided with at least two light-emitting units.

4. An optical module, characterized in that, The optical module comprises the flexible circuit board of any one of claims 1 to 3; The optical module further comprises: A mounting bracket comprising a main body portion and a mounting portion, the mounting portion is configured to mount at least one flexible segment; At least one mounting member is provided, the mounting member is connected to the main body portion through a detachable structure; each mounting member is configured to mount one flexible segment.

5. The optical module of claim 4, wherein The surface of the light-emitting portion away from the light-emitting unit is provided with a reinforcing substrate.

6. The optical module of claim 4, wherein The mounting portion and / or the mounting member is provided with a heat dissipation through hole opposite to the light-emitting portion.

7. The optical module of claim 4, further comprising a light guide component and a printed circuit board, the light guide component is connected to the mounting bracket, and the light guide component is configured to receive light emitted from the light-emitting unit of the printed circuit board; The main body portion is provided with a mounting hole, the light guide component penetrates through the mounting hole, the light-emitting surface of the light guide component is located on the same side of the mounting bracket as the flexible circuit board, and the printed circuit board is arranged on the side of the mounting bracket away from the flexible circuit board.

8. The optical module of claim 7, wherein ​ The control board is arranged on the side of the light guide component away from the printed circuit board; the flexible circuit board and the printed circuit board are electrically connected with the control board respectively; The mounting bracket is provided with a connecting through hole, and the control board is electrically connected with the flexible circuit board through a lead wire penetrating through the connecting through hole.

9. The optical module of claim 7, wherein, The optical module further comprises a decorative ring, and the decorative ring is sleeved on the light guide component.

10. A vehicle lamp characterized by The optical module comprises the optical module according to any one of claims 4 to 9.

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