Automobile ISD interactive light double-sided FPC

Abstract

The utility model relates to a kind of double-face FPC of automobile ISD interactive light.It solves the problem of poor stability and difficult to achieve efficient heat dissipation when circuit board loads multiple accessories in prior art.It includes rigid control board, and the FPC board is connected on the both sides of rigid control board through conducting component, and the FPC board is wrapped positioning through quick-release plug-in mechanism on the circumferential side of clamping connection component, and the rigid control board is circumferentially provided with heat dissipation structure connected with quick-release plug-in mechanism.The utility model has the advantages of realizing efficient heat dissipation of rigid circuit board, and good structural stability.

Description

Technical Field

[0001] This utility model relates to the field of circuit board technology, specifically to a double-sided FPC for automotive ISD interactive lights. Background Technology

[0002] As the trend of automotive intelligence and interactivity deepens, more and more automotive components are being innovated around the "intelligent concept." In the field of exterior design, intelligent interactive products are emerging in large numbers: in terms of headlights, products such as digital projection headlights, intelligent taillight interactive lights, and intelligent welcome interactive lights have been developed. These products work in conjunction with the increasingly abundant cameras and radars inside the vehicle, and with flexible designs for personalized pattern displays, to jointly promote intelligent interactive technology into a new stage of development.

[0003] To further enhance the human-computer interaction experience, vehicle lighting functions are upgrading from simple illumination to intelligent and emotional features, giving rise to Intelligent Signal Display (ISD) technology. This technology uses programming to control a large number of LED light sources, enabling intelligent communication and dynamic interaction between the vehicle lights and the outside world. However, client-side module structure designs are diverse. The pads between the FPC and PCBA are soldered using hotbar soldering, with both soldering surfaces designed on the same side. The more circuit traces there are, the larger the PCBA becomes. As client-side module structures grow larger, there is insufficient space in the PCBA's form factor. In addition, because ISD interactive lights need to integrate a large number of relatively concentrated LED light sources and support diverse programming modes, existing circuit boards cannot meet their stability requirements. Moreover, the simultaneous operation of multiple light sources leads to increased circuit board temperature, making effective heat dissipation impossible.

[0004] To address the shortcomings of existing technologies, people have conducted long-term explorations and proposed various solutions. For example, Chinese patent literature discloses a protective cover for circuit boards [CN202422331678.X], which includes an FPC board, a buffer layer, and a PCBA board. The FPC board includes a front FPC board and a back FPC board, which are connected by a bending part. The front of the PCBA board has a front solder pad, and the back of the PCBA board has a back solder pad. The front FPC board has a soldering area corresponding to the front solder pad and is soldered to the front solder pad. The back FPC board has a soldering area corresponding to the back solder pad, and after the back FPC board is folded, its soldering area is soldered to the back solder pad. The buffer layer is sandwiched between the front FPC board and the back FPC board.

[0005] The above solution has solved the problem of insufficient wiring space caused by the large number of circuit traces on the circuit board soldering surface and the large structure of the client module in the existing technology to a certain extent. However, the solution still has many shortcomings, such as: it is difficult to meet its stability requirements, and the simultaneous operation of multiple light sources causes the circuit board temperature to rise, making it impossible to achieve effective heat dissipation. Summary of the Invention

[0006] The purpose of this invention is to address the above-mentioned problems by providing a double-sided FPC for automotive ISD interactive lights.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: a double-sided FPC for automotive ISD interactive lights, comprising a rigid control board, with FPC boards connected to both sides of the rigid control board via conductive components, the FPC boards being provided with snap-fit ​​connection components in the circumferential direction, the snap-fit ​​connection components being wrapped and positioned on the outer circumferential direction by a quick-release plug-in mechanism, and the rigid control board being provided with a heat dissipation structure in the circumferential direction connected to the quick-release plug-in mechanism.

[0008] In the aforementioned double-sided FPC for automotive ISD interactive lights, the conductive assembly includes a heat-insulating plate disposed on the outer wall of a rigid control board. The inner wall of the heat-insulating plate is provided with a conductive connection cavity, and a first wire-passing hole and a second wire-passing hole are respectively provided on the upper and lower sides of the heat-insulating plate. The second wire-passing hole is interconnected with the outer wall of the rigid control board, and the first wire-passing hole is interconnected with the FPC board.

[0009] In the aforementioned double-sided FPC for automotive ISD interactive lights, a positioning groove for positioning the rigid control plate is provided on the side of the heat insulation plate near the rigid control plate.

[0010] In the aforementioned double-sided FPC for automotive ISD interactive lights, the snap-fit ​​connection assembly includes a flexible insulating base. The upper and lower sides of the flexible insulating base are provided with positioning and protective slots for positioning the FPC board, and the FPC board is disposed in the positioning and protective slots.

[0011] In the aforementioned double-sided FPC for automotive ISD interactive lights, a connecting slot for positioning the heat insulation board is provided on the lower side of the positioning protection slot. An insulating barrier is provided between the connecting slot and the positioning protection slot, and a plurality of clearance through holes corresponding one-to-one with the first wire through hole are provided on the insulating barrier.

[0012] In the aforementioned double-sided FPC for automotive ISD interactive lights, a clamping and positioning part for positioning a rigid control plate is provided on the circumferentially inner side of the flexible insulating seat and between the connecting slots.

[0013] In the aforementioned double-sided FPC for automotive ISD interactive lights, the quick-release connector mechanism includes an upper quick-release cover and a lower quick-release base. The upper quick-release cover and the lower quick-release base respectively enclose the positioning and protective slot and wrap the flexible insulating base circumferentially.

[0014] In the aforementioned double-sided FPC for automotive ISD interactive lights, an inner slot is provided on the side of the upper quick-release cover near the lower quick-release base, and a corresponding insertion connection part is provided on the lower quick-release base.

[0015] In the aforementioned double-sided FPC for automotive ISD interactive lights, the heat dissipation structure includes an exhaust channel disposed on the clamping and positioning part, and a heat-conducting column connected to the side wall of the rigid control plate is disposed in the exhaust channel. The heat-conducting column is connected to the corresponding upper quick-release cover and lower quick-release seat respectively.

[0016] In the aforementioned double-sided FPC for automotive ISD interactive lights, heat dissipation fins are provided on the outer wall of the quick-release cover and the location where the lower quick-release base connects to the heat-conducting pillar.

[0017] Compared with existing technologies, the advantages of this utility model are as follows: The structural design is stable, meeting the requirements of configuring more control modules, chips, and other core components on the circuit board to support complex logic. Furthermore, the double-sided welding layout breaks through the limitations of traditional planar arrangement, significantly improving wiring density and electrical connection flexibility. It fully meets the functional requirements of complex circuits in automotive ISD interactive lights, providing a hardware foundation for multi-mode dynamic lighting control and achieving efficient space utilization and functional integration. It also effectively improves the assembly stability of the overall structure, preventing component loosening from affecting use. Simultaneously, the rigid control board can quickly transfer the heat generated during operation through the heat-conducting pillars in the exhaust channel, and the heat dissipation fins further expand the heat dissipation area. Combined with the exhaust channel to facilitate air circulation, it achieves efficient heat dissipation. The heat insulation board not only provides heat insulation but also reduces the impact of heat transfer on various components, further ensuring the heat dissipation effect and stability of the device in scenarios where multiple light sources operate simultaneously. Attached Figure Description

[0018] Figure 1 This is a cross-sectional view of the overall structure of this utility model; Figure 2 yes Figure 1 Enlarged view of the structure at point A in the image; Figure 3 This is a schematic diagram of the structure when the heat insulation board and the rigid control board are connected in this utility model; Figure 4 This is a schematic diagram of the overall structure of the flexible insulating base in this utility model; Figure 5 This is a schematic diagram of the quick-release cover structure of this utility model; In the figure: Rigid control plate 1, conductive assembly 2, heat insulation plate 21, conductive connection cavity 22, first wire hole 23, second wire hole 24, positioning groove 25, FPC plate 3, snap-fit ​​connection assembly 4, flexible insulating seat 41, positioning and protective slot 42, clamping and positioning part 43, connecting slot 44, insulating barrier part 45, clearance through hole 46, quick-release plug-in mechanism 5, upper quick-release cover 51, lower quick-release seat 52, inner slot 53, plug-in connection part 54, heat dissipation structure 6, exhaust channel 61, heat conduction column 62, heat dissipation fins 63. Detailed Implementation

[0019] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0020] like Figures 1-5 As shown, a double-sided FPC for automotive ISD interactive lights includes a rigid control board 1. FPC boards 3 are connected to both sides of the rigid control board 1 through conductive components 2. The FPC boards 3 are provided with snap-fit ​​connection components 4 in the circumferential direction. The snap-fit ​​connection components 4 are wrapped and positioned on the outer side of the circumferential direction by a quick-release plug-in mechanism 5. The rigid control board 1 is provided with a heat dissipation structure 6 in the circumferential direction that is connected to the quick-release plug-in mechanism 5.

[0021] The conductive component 2 includes a heat-insulating plate 21 disposed on the outer wall of the rigid control plate 1. The inner wall of the heat-insulating plate 21 is provided with a conductive connection cavity 22, and the upper and lower sides of the heat-insulating plate 21 are respectively provided with a first wire passage hole 23 and a second wire passage hole 24. The second wire passage hole 24 is connected to the outer wall of the rigid control plate 1, and the first wire passage hole 23 is connected to the FPC plate 3.

[0022] The heat insulation board 21 can achieve heat insulation and avoid heat transfer interference. The conductive connection cavity 22 on the inner wall can accommodate the connection line. It can also connect the FPC board 3 and the rigid control board 1 through the first wire hole 23 and the second wire hole 24 on the upper and lower sides, respectively, so as to smoothly complete the wire connection between the rigid control board 1 and the FPC board 3 and realize the hidden wiring.

[0023] As can be seen, the side of the heat insulation plate 21 near the rigid control plate 1 is provided with a positioning groove 25 for positioning the rigid control plate 1.

[0024] The positioning groove 25 forms a positioning constraint on the rigid control plate 1, preventing displacement between the rigid control plate 1 and the heat insulation plate 21, and ensuring the accuracy and stability of the connection between the two.

[0025] Furthermore, the snap-fit ​​connection assembly 4 includes a flexible insulating base 41, and the upper and lower sides of the flexible insulating base 41 are provided with positioning and protective slots 42 for positioning the FPC board 3, and the FPC board 3 is disposed in the positioning and protective slots 42.

[0026] The FPC board 3 is limited by the positioning and protective slot 42 structure to prevent the FPC board 3 from loosening and shifting. The flexible insulating seat 41 provides insulation and protection for the FPC board 3, reducing the impact of external factors on the FPC board 3.

[0027] Specifically, a connecting slot 44 for positioning the heat insulation board 21 is provided on the lower side of the positioning protection slot 42. An insulating barrier part 45 is provided between the connecting slot 44 and the positioning protection slot 42. A plurality of clearance through holes 46 are provided on the insulating barrier part 45, which correspond one-to-one with the first wire hole 23.

[0028] The connecting slot 44 can position the heat insulation plate 21, making the connection between the heat insulation plate 21 and the flexible insulation seat 41 more stable; the insulating barrier part 45 between the connecting slot 44 and the positioning protection slot 42 can achieve insulation isolation between the two.

[0029] Furthermore, a clamping and positioning part 43 for positioning the rigid control plate 1 is provided on the circumferentially inward side of the flexible insulating base 41 and between the connecting slots 44.

[0030] The clamping force of the clamping and positioning part 43 further positions the rigid control plate 1, and cooperates with the positioning groove 25 of the heat insulation plate 21 to double ensure the installation stability of the rigid control plate 1 and prevent it from shaking during use.

[0031] More specifically, the quick-release plug-in mechanism 5 includes an upper quick-release cover 51 and a lower quick-release seat 52, which respectively enclose the positioning protection slot 42 and wrap the flexible insulating seat 41 circumferentially.

[0032] In detail, the upper quick-release cover 51 has an inner slot 53 on the side near the lower quick-release base 52, and the lower quick-release base 52 has a corresponding insertion connection part 54. The upper quick-release cover 51 and the lower quick-release base 52 cooperate to seal the positioning and protective slot 42, forming a sealed protection for the internal FPC board 3, and fully wrapping the flexible insulating base 41 circumferentially, reinforcing the overall structure from the outside. At the same time, the quick-release method also facilitates subsequent disassembly and maintenance.

[0033] Preferably, the heat dissipation structure 6 includes an exhaust channel 61 disposed on the clamping and positioning part 43, and a heat-conducting column 62 disposed in the exhaust channel 61 and connected to the side wall of the rigid control plate 1. The heat-conducting column 62 is connected to the corresponding upper quick-release cover 51 and lower quick-release seat 52 respectively.

[0034] The exhaust channel 61 provides a channel for heat flow, and the heat-conducting column 62 in the channel can quickly conduct the heat generated by the operation of the rigid control plate 1 to the heat dissipation fins 63, thus completing the transfer of heat from the core component to the outside.

[0035] In addition, heat dissipation fins 63 are provided on the outer wall of the quick-release cover and the location where the lower quick-release base 52 connects to the heat-conducting pillar 62.

[0036] In summary, the principle of this embodiment is as follows: the rigid control board 1 is connected to the FPC board 3 via the conductive assembly 2. The heat insulation plate 21 of the conductive assembly 2 enables the wiring between the rigid control board 1 and the FPC board 3 to be connected within the conductive connection cavity 22 via the first wire hole 23 and the second wire hole 24. Secondly, the positioning groove 25 positions the rigid control board 1, and the FPC board 3 is fixed and protected within the positioning and protective slot 42 of the flexible insulating base 41. The connecting slot 44 of the flexible insulating base 41 can position the heat insulation plate 21. The insulating barrier part 45 provides insulation and avoids the wiring via the through hole 46, thus securing the connecting assembly 4. The side is positioned by a quick-release plug-in mechanism 5. The upper quick-release cover 51 is precisely connected to the plug-in connection part 54 of the lower quick-release seat 52 through the inner slot 53. This not only seals the positioning and protective slot 42 to protect the FPC board 3, but also strengthens the overall structure and facilitates disassembly and assembly. In the circumferential heat dissipation structure 6 of the rigid control board 1, the exhaust channel 61 on the clamping and positioning part 43 provides a path for heat flow. The heat conduction column 62 conducts the heat of the rigid control board 1 to the upper quick-release cover 51 and the lower quick-release seat 52. Then, the heat dissipation area is expanded by the heat dissipation fins 63 on the outer walls of both, which efficiently dissipates the heat generated by the operation of multiple light sources, thereby achieving assembly stability and heat dissipation effect.

[0037] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

[0038] Although this document frequently uses terms such as rigid control plate 1, conductive assembly 2, heat insulation plate 21, conductive connection cavity 22, first wire through hole 23, second wire through hole 24, positioning groove 25, FPC plate 3, snap-fit ​​connection assembly 4, flexible insulating seat 41, positioning and protective slot 42, clamping and positioning part 43, connecting slot 44, insulating barrier part 45, clearance through hole 46, quick-release plug-in mechanism 5, upper quick-release cover 51, lower quick-release seat 52, inner slot 53, plug-in connection part 54, heat dissipation structure 6, exhaust channel 61, heat conduction column 62, and heat dissipation fins 63, the possibility of using other terms is not excluded. The use of these terms is merely for the convenience of describing and explaining the essence of this utility model; interpreting them as any additional limitation would contradict the spirit of this utility model.

Claims

1. A double-sided FPC for automotive ISD interactive lights, comprising a rigid control board (1), characterized in that, The rigid control board (1) is connected to an FPC board (3) on both sides by a conductive component (2). The FPC board (3) is provided with a snap-fit ​​connection component (4) in the circumferential direction. The snap-fit ​​connection component (4) is wrapped and positioned on the outer side of the circumferential direction by a quick-release plug-in mechanism (5). The rigid control board (1) is provided with a heat dissipation structure (6) in the circumferential direction that is connected to the quick-release plug-in mechanism (5).

2. The double-sided FPC for automotive ISD interactive lights according to claim 1, characterized in that, The conductive component (2) is a heat-insulating plate (21) disposed on the outer wall of the rigid control plate (1). The inner wall of the heat-insulating plate (21) is provided with a conductive connection cavity (22). The upper and lower sides of the heat-insulating plate (21) are respectively provided with a first wire hole (23) and a second wire hole (24). The second wire hole (24) is connected to the outer wall of the rigid control plate (1), and the first wire hole (23) is connected to the FPC plate (3).

3. The double-sided FPC for automotive ISD interactive lights according to claim 2, characterized in that, The heat insulation plate (21) is provided with a positioning groove (25) for positioning the rigid control plate (1) on the side near the rigid control plate (1).

4. The double-sided FPC of claim 3, wherein, The snap-fit ​​connection assembly (4) includes a flexible insulating base (41), and the flexible insulating base (41) has positioning and protective slots (42) for positioning the FPC board (3) on its upper and lower sides. The FPC board (3) is disposed in the positioning and protective slots (42).

5. The automotive ISD interactive light double-sided FPC of claim 4, wherein, The lower side of the positioning protection slot (42) is provided with a connecting slot (44) for positioning the heat insulation board (21). An insulating barrier part (45) is provided between the connecting slot (44) and the positioning protection slot (42). The insulating barrier part (45) is provided with a plurality of clearance through holes (46) corresponding one-to-one with the first wire hole (23).

6. The automotive ISD interactive light double-sided FPC of claim 5, wherein, The flexible insulating base (41) is provided with a clamping and positioning part (43) for positioning the rigid control plate (1) on its circumferential inner side and between the connecting slots (44).

7. A double-sided FPC for automotive ISD interactive lights according to claim 6, characterized in that, The quick-release plug-in mechanism (5) includes an upper quick-release cover (51) and a lower quick-release seat (52). The upper quick-release cover (51) and the lower quick-release seat (52) respectively enclose the positioning protection slot (42) and wrap the flexible insulating seat (41) circumferentially.

8. The automotive ISD interactive light double-sided FPC of claim 7, wherein, The upper quick-release cover (51) is provided with an inner slot (53) on the side near the lower quick-release seat (52), and the lower quick-release seat (52) is provided with a plug-in connection part (54) corresponding to the inner slot (53).

9. The automotive ISD interactive light double-sided FPC of claim 8, wherein, The heat dissipation structure (6) includes an exhaust channel (61) provided on the clamping and positioning part (43). The exhaust channel (61) is provided with a heat-conducting column (62) connected to the side wall of the rigid control plate (1). The heat-conducting column (62) is connected to the corresponding upper quick-release cover (51) and lower quick-release seat (52) respectively.

10. The automotive ISD interactive light double-sided FPC of claim 9, wherein, The quick-release cover and the lower quick-release seat (52) are provided with heat dissipation fins (63) on the outer wall of the position where they connect with the heat-conducting column (62).

Images