A circuit board and a circuit board assembly

Abstract

The utility model relates to the technical field of automobile, especially a kind of circuit board and circuit board assembly.The present application provides a kind of circuit board and circuit board assembly, circuit board assembly includes wiring harness and circuit board, circuit board includes substrate and locking mechanism, locking mechanism has body and clamping part, and the clamping space is formed between clamping part, the first through-hole is formed on the body, and wiring harness is locked by clamping part by being inserted into clamping space through the first through-hole.The present application is simplified wiring harness and circuit board connection process by the design of locking mechanism, compared with being connected by connector, improve the production efficiency in production process.

Description

Technical Field

[0001] This utility model relates to the field of automotive technology, and in particular to a circuit board and circuit board assembly. Background Technology

[0002] Circuit boards are widely used in electronic devices due to their high integration and small size. In practical applications, circuit boards are typically connected to each other or to electronic components via wire harnesses. Currently, the common method is to use connectors on both the wire harness and the circuit board to achieve connection. This bidirectional connector structure not only leads to redundant assembly processes but also significantly increases process complexity and affects manufacturing efficiency due to the precision requirements for connector positioning. Utility Model Content

[0003] This application provides a circuit board and circuit board assembly to improve the ease of connecting wire harnesses to circuit boards, reduce the complexity of processing technology in the production process, and improve production efficiency.

[0004] This application provides a circuit board assembly, which includes a wire harness and a circuit board, wherein the wire harness is connected to the circuit board.

[0005] The circuit board is connected to the wiring harness, and the circuit board conducts electricity with other circuit boards or other components.

[0006] This application provides a circuit board, the circuit board comprising: substrate; A locking mechanism, which is mounted on the base plate; The locking mechanism includes a locking member, which includes a body and at least two clamping portions connected to the body. The clamping portions are elastically deformable relative to the body so that the at least two clamping portions form a clamping space for clamping the wire harness. The body has a first through hole communicating with the clamping space.

[0007] In this design, the first through hole serves as a guide, allowing the wire harness to enter the clamping space and be held by the clamping part. The clamping part can elastically deform relative to the main body. When the wire harness is clamped, the clamping part generates a uniform clamping force through its own elastic deformation. This wire harness locking method is simple and efficient, facilitating installation and disassembly during production. Furthermore, when the circuit board assembly is subjected to external impact, the elastic deformation of the clamping part provides excellent cushioning, reducing rigid collisions between the wire harness and the locking mechanism and preventing the wire harness from falling off due to external impact. Moreover, the clamping connection eliminates the need for connectors, reducing component costs, improving product performance stability and assembly speed, and ultimately increasing production efficiency. This embodiment simplifies the assembly process, increases production speed, and simultaneously improves the reliability and stability of the wire harness and locking mechanism installation.

[0008] In one possible design, the locking member includes at least two clamping portions disposed opposite each other along the width direction of the body, and a gap is formed between the ends of the two clamping portions disposed opposite each other along the width direction of the body, the gap forming the clamping space.

[0009] In this solution, the locking mechanism achieves an adaptive clamping effect through the gap between the relatively arranged clamping parts. The gap between the ends of the clamping parts forms a clamping space. After the wire harness extends into the clamping space through the first through hole, the wire harness squeezes the clamping parts, causing the gap to expand. The two clamping parts arranged relatively along the width direction elastically deform. During the deformation process, the clamping parts always fit with the outer contour of the wire harness, forming a reliable clamping.

[0010] In one possible design, the clamping portion has at least one bent portion to allow the clamping portion to deform elastically.

[0011] In this solution, by incorporating a bending section in the clamping part, the deformation path of the clamping part's elastic deformation can be optimized. This allows the bending angle of the bending section to change when the clamping part is under pressure, enabling the clamping part to elastically deform. This bending section design makes the clamping part easier to elastically deform and ensures that the direction of the elastic deformation is controllable. When the wire harness extends into the clamping space, the bending section can convert the axial pressure into radial clamping force, providing stable clamping for the wire harness and accommodating wire harnesses of different diameters. When the wire harness is removed, the clamping part can automatically reset through the elastic rebound of the bending section, ensuring clamping stability during repeated use and improving the service life of the clamping part.

[0012] In one possible design, the clamping part is a spring.

[0013] In this design, the spring itself has a thin-walled structure and good elasticity. When clamping the wire harness, it can fit well against the outer surface of the wire harness, providing sufficient and uniform clamping force. This avoids excessive local pressure that could damage the wire harness. Furthermore, the spring's excellent elastic recovery properties ensure that the clamping part maintains its initial clamping accuracy after repeated assembly and disassembly, ensuring the stability of the connection between the wire harness and the circuit board. The spring's good elastic deformation capability also provides excellent cushioning against external impacts, making it suitable for various working conditions.

[0014] In one possible design, the body has pads through which the locking element is soldered to the substrate.

[0015] In this solution, the locking component is fixed to the circuit board substrate by soldering the pads. Compared with the traditional bolt fixing method, this can effectively prevent the locking component from shifting and loosening under vibration. Furthermore, the integrated design of the pads and the locking component creates a continuous conductive path between the locking component and the substrate, ensuring a stable connection between the wire harness and the substrate.

[0016] In one possible design, the body and the clamping part form an installation space, and the locking mechanism further includes a base that can be installed in the installation space. The base has a second through hole, and the first through hole is aligned with and communicates with the second through hole. The cross-sectional area of ​​the second through hole is smaller than that of the first through hole.

[0017] In this design, through holes are provided on the base and body to achieve the positioning and guidance of the wire harness, allowing it to pass through and be clamped in the clamping space. As the wire harness passes through the first and second through holes sequentially, the smaller cross-sectional area of ​​the second through hole guides and corrects the wire harness, eliminating angular deviations during insertion and ensuring precise alignment between the wire harness and the clamping space. Furthermore, the detachable design of the base and locking components allows for the replacement of different base modules according to the wire harness specifications, improving the compatibility and versatility of the locking mechanism. The combination of the base and body also increases the effective thickness of the locking mechanism along its height, enhancing its strength and resistance to deformation under impact, thus ensuring the stability of the locking mechanism structure.

[0018] In one possible design, the base has slots at both ends along its length, the body has extensions at both ends along its length, the extensions being able to engage with the slots, and the pads are disposed on the extensions.

[0019] In this solution, the extension is engaged with the slot, and the extension is embedded in the slot to achieve positioning constraint, ensuring the stability of the connection between the base and the locking component. The solder pad is located on the extension, which can significantly increase the effective welding area of ​​the solder pad. The extension is far away from the clamping part, which reduces the impact on the clamping part during the welding process and facilitates the installation of the locking mechanism, reducing mutual interference between the parts during the installation process.

[0020] In one possible design, the body is connected to at least two clamping portions along its length, and the base is provided with a rib, which is located between two adjacent clamping portions along the length of the body.

[0021] In this design, multiple clamping parts distributed along the length of the main body form independent spaces under the isolation effect of the base ribs, ensuring that the inserted wire harness is clamped by the corresponding clamping part, further improving the reliability of the wire harness clamping. Furthermore, the ribs located between adjacent clamping parts can constrain the clamping parts, limiting their swaying along the length of the main body, thus improving the stability and reliability of the clamping parts in holding the wire harness.

[0022] In one possible design, the substrate has an opening, the locking mechanism is mounted on the surface of the substrate along its thickness direction, and the first through hole communicates with the opening.

[0023] In this design, the substrate has an opening to facilitate the determination of the installation position of the locking mechanism. The wire harness passes through the opening on the substrate and enters the first through hole of the locking component. The opening reduces the interference of the substrate on the wire harness, simplifies the installation process of the wire harness and the locking mechanism, and the large opening space provides heat dissipation space for the wire harness connector, avoiding excessive temperature from affecting the locking effect of the locking mechanism.

[0024] It should be understood that the above general description and the following detailed description are merely exemplary and do not limit this application. Attached Figure Description

[0025] Figure 1 A schematic diagram of the structure of the circuit board assembly provided in this application in a specific embodiment; Figure 2 for Figure 1 A magnified view of part B in the middle section; Figure 3 for Figure 1 Exploded view of the circuit board assembly; Figure 4 for Figure 3 Enlarged view of a portion of section 13; Figure 5 for Figure 3 Enlarged view of part 12 in the middle; Figure 6 for Figure 3 A magnified view of part A in the middle.

[0026] Explanation of reference numerals in the attached figures: 1-Circuit board; 11-Substrate; 111 - Opening; 12-Base; 121 - Second through hole; 122 - Card slot; 123-convex rib; 13-Locking component; 131-Ontology; 1311 - First through hole; 1312 - Pad; 1313 - Extension; 132-Clamping part; 1321 - Bending section; 2-Wire harness; 21 - Wire harness end.

[0027] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application. Detailed Implementation

[0028] To better understand the technical solution of this application, the embodiments of this application will be described in detail below with reference to the accompanying drawings.

[0029] It should be understood that the described embodiments are merely some, not all, of the embodiments in this application. All other embodiments obtained by those skilled in the art based on the embodiments in this application without inventive effort are within the scope of protection of this application.

[0030] The terminology used in the embodiments of this application is for the purpose of describing particular embodiments only and is not intended to be limiting of this application. The singular forms “a,” “the,” and “the” used in the embodiments of this application and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise.

[0031] It should be understood that the term "and / or" used in this article is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, the character " / " in this article generally indicates that the preceding and following related objects have an "or" relationship.

[0032] Circuit board assemblies are widely used in various electronic devices. In one specific embodiment, such as... Figure 1 , Figure 2 As shown, the circuit board assembly includes a circuit board 1 and a wire harness. The circuit board 1 has a locking mechanism, and the wire harness is locked to the circuit board 1 by the locking mechanism. The types of circuit boards 1 include, but are not limited to, flexible printed circuit boards (FPC), rigid printed circuit boards (PCB), and rigid-flex PCBs.

[0033] In this embodiment, the type of circuit board 1 is not specifically limited.

[0034] refer to Figure 2 , Figure 6 The wire harness 2 has a wire harness end 21, which is locked by a locking mechanism when the wire harness 2 is mounted on the circuit board 1. By setting the wire harness end 21, the wire harness 2 can be integrated and tightened, and by connecting different wire harness ends 21, the wire harness 2 can adapt to different working conditions. The design of the wire harness end 21 can also protect the wire harness 2, as it can be disassembled and replaced after repeated use or damage, thus extending the service life of the wire harness 2.

[0035] In one specific embodiment, such as Figure 3 and Figure 4As shown, the circuit board 1 includes a substrate 11 and a locking mechanism. The locking mechanism is mounted on the substrate 11 and includes a locking member 13. The locking member 13 includes a body 131 and at least two clamping portions 132 connected to the body 131. The clamping portions 132 are elastically deformable relative to the body 131, so that the at least two clamping portions 132 form a clamping space for clamping the wire harness 2. The body 131 has a first through hole 1311 communicating with the clamping space.

[0036] In this embodiment, the first through hole 1311 serves a guiding function. The wire harness 2 enters the clamping space through the first through hole 1311 and is clamped by the clamping part 132. The clamping part 132 can elastically deform relative to the body 131. When the wire harness 2 is clamped by the clamping part 132, the clamping part 132 generates a uniform clamping force by its own elastic deformation. The locking method of the wire harness 2 is simple and efficient, facilitating installation and disassembly during the production process. When the circuit board assembly is subjected to external impact, the elastic deformation of the clamping part 132 can play a good buffering role, reducing the rigid collision between the wire harness 2 and the locking mechanism and preventing the wire harness 2 from falling off due to external impact. Furthermore, the clamping connection through the clamping part 132 eliminates the need for connectors, reducing component costs, improving product performance stability and assembly speed, and thus improving production efficiency. This embodiment simplifies the assembly process, increases production speed, and improves the reliability and stability of the installation of the wire harness 2 and the locking mechanism.

[0037] In one specific embodiment, such as Figure 4 As shown, the locking member 13 includes at least two clamping portions 132 arranged opposite to each other along the width direction of the body 131. There is a gap between the ends of the two clamping portions 132 arranged opposite to each other, and the gap between the clamping portions 132 forms a clamping space.

[0038] In this embodiment, the locking mechanism achieves an adaptive clamping effect through the gap between the relatively arranged clamping parts 132. The gap between the ends of the clamping parts 132 forms a clamping space. After the wire harness end 21 extends into the clamping space through the first through hole 1311, the wire harness end 21 squeezes the clamping part 132, causing the gap to expand. The two clamping parts 132 arranged relatively along the width direction elastically deform. During the deformation process, the clamping part 132 always fits against the outer contour of the wire harness 2, forming a reliable clamping.

[0039] In one specific embodiment, such as Figure 4 As shown, the clamping part 132 has at least one bent part 1321, which allows the clamping part 132 to be elastically deformable.

[0040] In this embodiment, by providing a bending portion 1321 in the clamping portion 132, the deformation path of the elastic deformation of the clamping portion 132 can be optimized, allowing the bending angle of the bending portion 1321 to change when the clamping portion 132 is under pressure, thereby enabling the clamping portion 132 to elastically deform. The design of the bending portion 1321 makes the clamping portion 132 easier to elastically deform and ensures that the direction of the elastic deformation of the clamping portion 132 is controllable. When the wire harness 2 is inserted into the clamping space, the bending portion 1321 can convert the axial pressure into radial clamping force, generating stable clamping of the wire harness 2, and can match wire harnesses 2 of different diameters. When the wire harness 2 is removed, the clamping portion 132 can automatically reset through the elastic rebound of the bending portion 1321, ensuring clamping stability during repeated use and improving the service life of the clamping portion 132.

[0041] Specifically, the clamping part 132 is a spring sheet. Because the spring sheet itself has a thin-walled structure and good elasticity, it can fit well against the outer surface of the wire harness 2 when clamping the wire harness end 21, providing sufficient and uniform clamping force. This prevents excessive local pressure from damaging the wire harness end 21. Furthermore, the spring sheet's excellent elastic recovery properties ensure that the clamping part 132 maintains its initial clamping accuracy after repeated assembly and disassembly, ensuring the connection stability between the wire harness 2 and the circuit board 1. The spring sheet's good elastic deformation capability also provides excellent buffering against external impacts, making it suitable for various working conditions.

[0042] In one specific embodiment, such as Figure 4 As shown, the body 131 is also provided with a pad 1312, and the locking member 13 is soldered to the substrate 11 through the pad 1312.

[0043] In this embodiment, the locking member 13 is fixed to the substrate 11 of the circuit board by soldering the pad 1312. Compared with the traditional bolt fixing method, it can effectively prevent the displacement and loosening of the locking member 13 under vibration. Moreover, the integrated design of the pad 1312 and the locking member 13 makes the locking member 13 and the substrate 11 form a continuous conductive path, so that the wire harness 2 and the substrate 11 form a stable connection.

[0044] In one specific embodiment, such as Figure 4 , Figure 5 As shown, the body 131 and the clamping part 132 form an installation space. The locking mechanism also has a base 12, which can be installed in the installation space formed by the body 131 and the clamping part 132. The base 12 has a second through hole 121, which is aligned with and communicates with the first through hole 1311 of the locking member 13. The cross-sectional area of ​​the second through hole 121 is smaller than the cross-sectional area of ​​the first through hole 1311.

[0045] In this embodiment, through holes are provided on the base 12 and the body 131 to achieve the positioning and guiding function of the wire harness end 21, allowing the wire harness end 21 to pass through and be clamped in the clamping space. When the wire harness end 21 passes through the first through hole 1311 and the second through hole 121 in sequence, the second through hole 121 with a smaller cross-sectional area guides and corrects the wire harness 2, eliminating the angular deviation when the wire harness 2 is inserted, and ensuring that the wire harness end 21 is accurately aligned with the clamping space. Furthermore, the detachable design of the base 12 and the locking member 13 allows for the replacement of different base 12 modules according to the specifications of the wire harness 2, improving the compatibility and universality of the locking mechanism. Moreover, the combination of the base 12 and the body 131 increases the effective thickness of the locking mechanism along its height direction, improves the strength of the locking mechanism, enhances its resistance to deformation when subjected to impact, and ensures the stability of the locking mechanism structure.

[0046] In one specific embodiment, such as Figure 2 , Figure 4 , Figure 5 As shown, the base 12 has slots 122 at both ends along its length direction, and the body 131 has extensions 1313 at both ends along its length direction. The extensions 1313 can be engaged with the slots 122, and the pads 1312 are disposed on the extensions 1313.

[0047] In this embodiment, the extension 1313 is engaged with the slot 122, and the extension 1313 is embedded in the slot 122 to achieve positioning constraint, ensuring the stability of the connection between the base 12 and the locking member 13. The solder pad 1312 is set on the extension 1313, which can significantly increase the effective soldering area of ​​the solder pad 1312. The extension 1313 is far away from the clamping part 132, which reduces the impact on the clamping part 132 during the soldering process, and facilitates the installation of the locking mechanism, reducing mutual interference between the parts during the installation process.

[0048] In one specific embodiment, such as Figure 2 , Figure 5 As shown, at least two clamping portions 132 are connected along the length of the body 131, and the base 12 is provided with a rib 123, which is located between the two clamping portions 132 along the length of the body 131.

[0049] In this embodiment, multiple clamping portions 132 distributed along the length of the body 131 form independent spaces under the isolation effect of the protruding ribs 123 of the base 12, which can ensure that the inserted wire harness 2 is clamped by the corresponding clamping portion 132, further improving the reliability of clamping the wire harness 2. Moreover, the protruding ribs 123 located between adjacent clamping portions 132 can constrain the clamping portions 132, restricting the swaying of the clamping portions 132 along the length of the body 131, and improving the stability and reliability of the clamping portions 132 in clamping the wire harness end 21.

[0050] In one specific embodiment, such as Figure 1 , Figure 2 As shown, the substrate 11 has an opening 111, and a locking mechanism is mounted on the surface of the substrate 11 along the thickness direction. The first through hole 1311 of the locking member 13 communicates with the opening 111.

[0051] In this embodiment, the substrate 11 is provided with an opening 111 to facilitate the determination of the installation position of the locking mechanism. The wire harness 2 passes through the opening 111 of the substrate 11 and enters the first through hole 1311 of the locking member 13. The opening 111 reduces the interference of the substrate 11 on the wire harness 2, simplifies the installation process of the wire harness 2 and the locking mechanism, and the large space of the opening 111 provides heat dissipation space for the wire harness 2 connector, avoiding excessive temperature from affecting the locking effect of the locking mechanism.

[0052] The above descriptions are merely specific implementations of the embodiments of this application, but the protection scope of the embodiments of this application is not limited thereto. Any changes or substitutions within the technical scope disclosed in the embodiments of this application should be covered within the protection scope of the embodiments of this application. Therefore, the protection scope of the embodiments of this application should be determined by the protection scope of the claims.

Claims

1. A circuit board, characterized in that, The circuit board (1) includes: substrate(11); A locking mechanism is mounted on the base plate (11). The locking mechanism includes a locking member (13), which includes a body (131) and at least two clamping portions (132) connected to the body (131). The clamping portions (132) are elastically deformable relative to the body (131) so that the at least two clamping portions (132) form a clamping space for clamping the wire harness (2). The body (131) has a first through hole (1311) communicating with the clamping space.

2. The circuit board according to claim 1, characterized in that, The locking member (13) includes at least two clamping portions (132) arranged opposite each other along the width direction of the body (131), and there is a gap between the ends of the two clamping portions (132) arranged opposite each other along the width direction of the body (131), the gap forming the clamping space.

3. The circuit board according to claim 1, characterized in that, The clamping part (132) has at least one bent part (1321) so that the clamping part (132) can be elastically deformed.

4. The circuit board according to any one of claims 1-3, characterized in that, The clamping part (132) is a spring.

5. The circuit board according to any one of claims 1-3, characterized in that, The body (131) has a pad (1312), and the locking member (13) is soldered to the substrate (11) through the pad (1312).

6. The circuit board according to claim 5, characterized in that, The body (131) and the clamping part (132) form an installation space. The locking mechanism also includes a base (12), which can be installed in the installation space. The base (12) has a second through hole (121), and the first through hole (1311) is aligned with and communicates with the second through hole (121). The cross-sectional area of ​​the second through hole (121) is smaller than the cross-sectional area of ​​the first through hole (1311).

7. The circuit board according to claim 6, characterized in that, The base (12) has slots (122) at both ends along its length direction, and the body (131) has extensions (1313) at both ends along its length direction. The extensions (1313) can be engaged with the slots (122), and the pads (1312) are disposed on the extensions (1313).

8. The circuit board according to claim 6, characterized in that, The body (131) is connected with at least two clamping parts (132) along its length direction, and the base (12) is provided with a rib (123), which is located between two adjacent clamping parts (132) along the length direction of the body (131).

9. The circuit board according to any one of claims 1-3, characterized in that, The substrate (11) has an opening (111), and the locking mechanism is mounted on the surface of the substrate (11) along the thickness direction. The first through hole (1311) communicates with the opening (111).

10. A circuit board assembly, characterized in that, The circuit board assembly includes a wire harness (2) and a circuit board (1) as claimed in any one of claims 1-9, wherein the wire harness (2) is clamped in the clamping space.

Images