A positioning device for a circuit board assembly

Abstract

The application provides a positioning device for a circuit board assembly, and relates to the field of vehicle manufacturing. The positioning device comprises a mounting base provided with a mounting position for accommodating a circuit board mounting piece, the mounting position being capable of limiting the planar movement of the circuit board mounting piece, one of the circuit board mounting piece and the circuit board assembly being provided with a positioning column, and the other being provided with a mounting hole matched with the positioning column; a limiting cover plate is rotationally connected with the mounting base and comprises a limiting window capable of cooperating with the circuit board assembly; when the limiting cover plate is rotated to the limit position towards the mounting base, the limiting window is aligned with the mounting position, so that the positioning hole of the circuit board assembly cooperates with the positioning column of the circuit board mounting piece. By rotating the limiting cover plate to align the limiting window with the mounting position, the circuit board assembly can be quickly and accurately matched with the circuit board mounting piece, and the assembly precision and efficiency are improved.

Description

Technical Field

[0001] This application relates to the field of vehicle manufacturing technology, and more particularly to a positioning component for a circuit board. Background Technology

[0002] With the rapid development of the automotive industry, in-vehicle cockpit systems undertake multiple functions during driving, such as information interaction, entertainment control, and safety monitoring. They typically integrate multiple electronic control units and functional modules. The electronic components of each functional module are mainly mounted on printed circuit board assemblies (PCBAs), which are then fixed to the corresponding product structural components by screws or snap-fit ​​structures.

[0003] However, in the existing printed circuit board assembly process, problems such as component collisions, tilted placement, and inaccurate positioning often occur. Although structural components are usually equipped with positioning posts for precise positioning, and corresponding positioning holes are provided on the PCBA, under manual operation, the PCBA often shifts to a certain extent before reaching the correct positioning, causing misalignment between the positioning holes and positioning posts. This can lead to interference or collision between components on the PCBA and structural components, which not only affects the installation accuracy of the PCBA but also easily damages the circuit board components, resulting in product malfunctions or assembly scrap. Utility Model Content

[0004] The purpose of this utility model is to address at least one of the aforementioned existing technical problems by providing a positioning device for circuit board assemblies. By setting a mounting base with a mounting position, a limiting cover plate rotatably connected to the mounting base, and a positioning post and mounting hole structure for positioning, the device enables rapid and accurate positioning and limiting fixation of the circuit board assembly, preventing offset or misalignment during assembly, thereby improving assembly accuracy, stability, and operational efficiency.

[0005] This utility model provides a positioning device for circuit board assemblies, the positioning device comprising: The mounting base is provided with a mounting position for accommodating the circuit board mounting component. The mounting position can restrict the planar movement of the circuit board mounting component. One of the circuit board mounting component and the circuit board assembly is provided with a positioning post, and the other is provided with a mounting hole that matches the positioning post. A limiting cover plate, rotatably connected to the mounting base, includes a limiting window that can cooperate with the circuit board assembly. When the limiting cover plate is rotated toward the mounting base to its limit position, the limiting window is aligned with the mounting position so that the positioning hole of the circuit board assembly cooperates with the positioning post of the circuit board mounting component.

[0006] In a possible implementation, the positioning device further includes a locking cover plate located on the side of the limiting cover plate opposite to the mounting base. The locking cover plate includes a locking cover plate body and at least one sleeve. The locking cover plate body is rotatably connected to the mounting base. The at least one sleeve is disposed on the side plate surface of the locking cover plate body facing the mounting base, and the sleeve allows fasteners to pass through. When the locking cover plate rotates toward the limiting cover plate to its limit position, the sleeve is aligned with the fastening mounting position of the circuit board assembly.

[0007] In a possible implementation, the mounting base further includes a support member protruding from the periphery of the mounting position. When the limiting cover plate rotates toward the mounting base to its limit position, the support member can abut against the limiting cover plate, so that an accommodating space for the circuit board mounting component is formed between the mounting position and the limiting cover plate.

[0008] In a possible implementation, when the support abuts against the limiting cover, the plane where the limiting window is located is parallel to the plane where the mounting position is located.

[0009] In a possible implementation, a support block is also included, wherein at least one of the locking cover plate and the limiting cover plate is provided with the support block; When the locking cover plate rotates toward the limiting cover plate to its limit position, the support block is supported and connected between the locking cover plate and the limiting cover plate; The limiting cover plate can be driven by the support block to move in a direction away from the mounting base.

[0010] In a possible implementation, when the locking cover plate rotates toward the limiting cover plate to its limit position, the plane where the limiting window is located is parallel to the plane where the mounting position is located.

[0011] In a possible implementation, the locking cover is provided with a gripping part, which protrudes relative to the main body of the locking cover.

[0012] In a possible implementation, when the support block abuts against the limiting cover, the gap between the locking cover body and the circuit board assembly is greater than or equal to 5mm.

[0013] In a possible implementation, the limiting window and the circuit board mount are contoured, and the limiting window allows the circuit board assembly to pass through.

[0014] In a possible implementation, the mounting base further includes at least one limiting portion that can restrict planar movement of the circuit board mount.

[0015] The positioning device for circuit board assemblies provided by this utility model has the following beneficial effects: This utility model provides a positioning device for circuit board assemblies, the positioning device comprising: A mounting base is provided with a mounting position for accommodating a circuit board mounting component. This mounting position restricts the planar movement of the circuit board mounting component. One of the circuit board mounting component and the circuit board assembly has a positioning post, and the other has a mounting hole that matches the positioning post. A limiting cover plate is rotatably connected to the mounting base and includes a limiting window that mates with the circuit board assembly. When the limiting cover plate is rotated to its limit position toward the mounting base, the limiting window aligns with the mounting position, so that the positioning hole of the circuit board assembly mates with the positioning post of the circuit board mounting component. By limiting the circuit board mounting component with the mounting position, displacement during assembly is prevented. By rotating the limiting cover plate to align the limiting window with the mounting position, the circuit board assembly can be placed quickly and accurately, improving assembly precision and efficiency. Attached Figure Description

[0016] To more clearly illustrate the technical solution of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the positioning device in an embodiment of the present utility model; Figure 2 This is a schematic diagram of the positioning device in an embodiment of the present utility model; Figure 3 This is a schematic diagram of the positioning device in an embodiment of the present utility model; Figure 4 This is a front view of the positioning device in an embodiment of this utility model; Figure 5 This is a top view of the positioning device in an embodiment of this utility model; Figure 6 This is a side view of the positioning device in an embodiment of the present utility model; Figure 7 This is a front view of the positioning device in an embodiment of this utility model; Figure 8 This is a schematic diagram of the positioning device in an embodiment of the present utility model.

[0018] The following is supplementary explanation of the attached figures: 1. Mounting base; 11. Mounting position; 12. Support component; 13. Limiting part; 2. Limiting cover plate; 3. Locking cover plate; 31. Locking cover plate body; 32. Gripping part; 33. Support block; 34. Sleeve. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, 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 some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0020] The term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of this application. In the description of this application, it should be understood that the terms "upper," "lower," "top," "bottom," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. Moreover, the terms "first," "second," etc., are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in orders other than those illustrated or described herein.

[0021] Understandably, with the rapid development of the automotive industry, the number of electronic devices integrated into vehicle cockpits is increasing. As core control and signal processing units, printed circuit board assemblies (PCBAs) face higher requirements for assembly precision and installation reliability. However, in existing technologies, PCBAs are prone to problems such as inaccurate positioning, installation misalignment, and component collisions during assembly. Although some structures are designed with positioning posts and mating positioning holes for precise positioning, due to limited assembly space, restricted operating visibility, and unstable initial placement of the PCBA, the PCBA often shifts before the positioning posts enter the positioning holes. This leads to misalignment between the positioning holes and posts, causing mechanical interference between components and structural parts, and even damage or malfunction of the circuit board.

[0022] Furthermore, existing PCBA mounting fixtures mostly employ open frame structures, providing only simple bottom limits. They fail to effectively constrain the vertical or horizontal displacement of the PCBA during assembly and lack collision protection, forcing operators to repeatedly adjust the position for alignment. This results in low assembly efficiency and increases the risk of operator fatigue. Therefore, there is an urgent need for a simple, precise positioning device that prevents PCBA misalignment or collisions during installation, thereby improving assembly accuracy and operational safety.

[0023] like Figure 1-8 As shown, this application provides a positioning device for a circuit board assembly, the positioning device comprising: Mounting base 1 is provided with mounting position 11 for accommodating circuit board mounting component. Mounting position 11 can restrict planar movement of circuit board mounting component. One of the circuit board mounting component and circuit board assembly is provided with positioning post, and the other is provided with mounting hole matching positioning post. The limiting cover 2 is rotatably connected to the mounting base 1 and includes a limiting window that can cooperate with the circuit board assembly. When the limiting cover 2 is rotated toward the mounting base 1 to the limit position, the limiting window is aligned with the mounting position 11 so that the positioning hole of the circuit board assembly cooperates with the positioning post of the circuit board mounting component.

[0024] Thus, the mounting position 11 on the mounting base 1 can limit the planar position of the circuit board mounting component, preventing it from shifting during assembly and ensuring installation stability; the circuit board mounting component and the circuit board assembly are precisely positioned through the cooperation of the positioning post and the mounting hole, ensuring the consistency of the assembly position; the limiting cover 2 is rotatably connected to the mounting base 1, and when the limiting cover 2 is rotated to the limit position, the limiting window is aligned with the mounting position 11, so that the circuit board assembly can be automatically aligned with the positioning post for installation, thereby achieving fast and accurate positioning and fixing, improving assembly efficiency and reliability.

[0025] Understandably, a circuit board assembly refers to an integral component including a circuit board and its components, such as a PCBA, used for electronic control or signal processing. A circuit board mount is a structural component of a vehicle body. A circuit board mount is a supporting component used to carry or fix the circuit board assembly. A mounting base 1 is used to carry the circuit board mount, and a mounting position 11 is formed on the mounting base 1. The mounting position 11 is used to accommodate the circuit board mount and restrict its movement in a plane. The periphery of the mounting position 11 may be provided with structures such as limiting blocks, walls, or flanges to reliably limit the circuit board mount on the horizontal plane after placement.

[0026] Specifically, the shape of the mounting position 11 matches the shape of the circuit board mounting component, and a limiting structure is provided around its periphery to restrict the planar movement of the circuit board mounting component, ensuring that the circuit board mounting component remains stably positioned in the horizontal direction after installation. The circuit board mounting component and the circuit board assembly achieve precise fit through a positioning structure, one side having a positioning post and the other side having mounting holes that match the positioning post. The insertion fit between the positioning post and the mounting hole ensures the accurate vertical position of the circuit board assembly and prevents assembly misalignment. The limiting cover plate 2 is installed by a rotatable connection to the mounting base 1, and the cover plate has a limiting window corresponding to the circuit board assembly. When the limiting cover plate 2 rotates towards the mounting base 1 to its limit position, the limiting window aligns with the mounting position 11, allowing the mounting holes of the circuit board assembly to accurately engage with the positioning posts on the circuit board mounting component.

[0027] In one embodiment, the circuit board mounting component is provided with positioning posts, and the circuit board assembly is provided with mounting holes that match the positioning posts.

[0028] In one embodiment, the base is hinged to the limiting cover plate 2.

[0029] Furthermore, the positioning device also includes a locking cover plate 3 located on the side of the limiting cover plate 2 facing away from the mounting base 1. The locking cover plate 3 includes a locking cover plate body 31 and at least one sleeve 34. The locking cover plate body 31 is rotatably connected to the mounting base 1. At least one sleeve 34 is disposed on the side plate surface of the locking cover plate body 31 facing the mounting base 1, and the sleeve 34 can allow fasteners to pass through. When the locking cover 3 rotates toward the limiting cover 2 to its limit position, the sleeve 34 is aligned with the fastening mounting position 11 of the circuit board assembly.

[0030] By setting a locking cover plate 3 on the side of the limiting cover plate 2 away from the mounting base 1, and setting a sleeve 34 on the main body 31 of the locking cover plate that allows fasteners to pass through, when the locking cover plate 3 is rotated to the limit position, the sleeve 34 can be aligned with the fastening mounting position 11 of the circuit board assembly, thereby realizing the rapid guidance and accurate insertion of fasteners, avoiding offset or misalignment during the fastening process, and improving assembly efficiency and locking accuracy.

[0031] Specifically, the locking cover 3 is located on the side of the limiting cover 2 opposite to the mounting base 1, and is used to further press and lock the circuit board assembly after the limiting cover 2 has been positioned. The locking cover 3 includes a locking cover body 31 and at least one sleeve 34. The locking cover body 31 is rotatably connected to the mounting base 1, allowing the locking cover 3 to open or close relative to the mounting base 1. The sleeve 34 is disposed on the side of the locking cover body 31 facing the mounting base 1, and a through hole is formed inside the sleeve 34 to allow fasteners to pass through. When the locking cover 3 rotates about its axis toward the limiting cover 2 to its limit position, the sleeve 34 is aligned with the fastening mounting position 11 on the circuit board assembly. At this time, the fastener can pass through the through hole of the sleeve 34 and cooperate with the fastening mounting position 11 of the circuit board assembly to achieve locking and fixing of the circuit board assembly.

[0032] Furthermore, such as Figure 2 As shown, the mounting base 1 also includes a support member 12 protruding from the periphery of the mounting position 11. When the limiting cover plate 2 rotates towards the mounting base 1 to its limit position, the support member 12 can abut against the limiting cover plate 2, thereby forming an accommodating space for the circuit board mounting component between the mounting position 11 and the limiting cover plate 2. By providing a protruding support member 12 on the mounting base 1, and making the support member 12 abut against the limiting cover plate 2 when it rotates to its limit position, an accommodating space for the circuit board mounting component can be formed between the two, thereby limiting the height position of the circuit board mounting component and preventing it from wobbling up and down or deforming under pressure during assembly.

[0033] Specifically, there is a first pivot between the limiting cover plate 2 and the mounting base 1, and there is a first distance between the first pivot and the mounting position 11. The first distance is the shortest distance between the first pivot and the mounting position 11, and the first distance is consistent with the height of the support member 12.

[0034] Specifically, there is a second pivot between the locking cover plate 3 and the mounting base 1, and there is a second distance between the second pivot and the mounting position 11, wherein the second distance is the shortest distance between the second pivot and the mounting position 11, and the second distance is greater than the first distance.

[0035] Specifically, a support member 12 is provided on the mounting base 1, protruding from the periphery of the mounting position 11. The support member 12 is used to form a stable spatial fit with the limiting cover 2 when the limiting cover 2 is closed. The height of the support member 12 is designed according to the thickness of the circuit board mounting component, and it serves to support and limit the circuit board mounting component when the limiting cover 2 is closed. When the limiting cover 2 rotates toward the mounting base 1 to its limit position, the upper surface of the support member 12 abuts against the lower surface of the limiting cover 2, so that a limited space for accommodating the circuit board mounting component is formed between the mounting position 11 and the limiting cover 2.

[0036] Optionally, the support member 12 may be a boss, stiffener, or ring structure integrally formed along the edge of the mounting position 11.

[0037] In one embodiment, such as Figures 6-7 As shown, when the support 12 abuts against the limiting cover 2, the plane where the limiting window is located is parallel to the plane where the mounting position 11 is located. In this way, the circuit board assembly can remain flat during positioning and locking, preventing assembly deviations or stress concentrations caused by tilting, thereby improving the installation accuracy and stress uniformity of the circuit board assembly, and ensuring the stability and reliability of the overall structure.

[0038] Specifically, the rotatable angle of the limiting cover 2 is 0°-100°. When the support member 12 abuts against the limiting cover 2, the posture of the limiting cover 2 is limited by the support member 12, and the plane where the limiting window on the limiting cover 2 is located is parallel to the plane where the mounting position 11 of the mounting base 1 is located. Specifically, the support member 12 is disposed on the periphery of the mounting position 11. When the limiting cover 2 rotates toward the mounting base 1 to its limit position, the upper surface of the support member 12 abuts against the lower surface of the limiting cover 2, thereby limiting the rotation termination position and termination angle of the limiting cover 2.

[0039] Furthermore, such as Figure 2 As shown, it also includes at least one of the following: support block 33, locking cover plate 3, and limiting cover plate 2; When the locking cover plate 3 rotates toward the limiting cover plate 2 to its limit position, the support block 33 is supported and connected between the locking cover plate 3 and the limiting cover plate 2; The limiting cover 2 can drive the locking cover 3 to move in a direction away from the mounting base 1 through the support block 33.

[0040] By setting a support block 33, and ensuring that the support block 33 supports and connects the locking cover plate 3 to the limiting cover plate 2 when the locking cover plate 3 rotates to the limit position, the locking cover plate 3 can be driven to move in coordination through the support block 33 when the limiting cover plate 2 moves. This achieves linkage control of the two covers, avoids mutual interference or misalignment, improves the coordination of opening and closing, and enhances the overall reliability and durability.

[0041] Specifically, the support block 33 can be fixedly installed on the inner wall of the limiting cover plate 2 facing the locking cover plate 3, or on the inner wall of the locking cover plate 3 facing the limiting cover plate 2. When the locking cover plate 3 rotates to the limit position facing the limiting cover plate 2, the support block 33 is located between the two and abuts against the corresponding part of the other cover plate, thereby forming a stable support connection between the two.

[0042] Specifically, the operator can rotate the limiting cover plate 2 to drive the locking cover plate 3 to move synchronously. There is a second rotating shaft between the mounting base 1 and the locking cover plate 3, and the first and second rotating shafts are arranged in parallel.

[0043] In one embodiment, such as Figure 8 As shown, when the locking cover 3 rotates to its limit position toward the limiting cover 2, the plane containing the limiting window is parallel to the plane containing the mounting position 11. This ensures that the circuit board assembly is evenly stressed after assembly, preventing tilting or deformation, improving the positioning accuracy and installation stability of the circuit board assembly, and facilitating subsequent locking operations.

[0044] Specifically, after the locking cover 3 is rotated to the predetermined limit position, the position of the locking cover 3 is precisely defined by the support block 33, so that the limiting cover 2 is in a closed posture parallel to the mounting base 1.

[0045] In one embodiment, such as Figure 5 As shown, the locking cover 3 is provided with a gripping part 32, which protrudes relative to the main body 31 of the locking cover. By providing the gripping part 32 protruding relative to the main body 31 of the locking cover 3, the operator can easily grasp and rotate the locking cover 3, improving the convenience and stability of the opening and closing operation; at the same time, it avoids direct contact with the cover body, reducing the risk of accidental contact or slippage, thereby improving assembly efficiency and safety of use.

[0046] Specifically, the limiting cover plate 2 is provided with a support part, which protrudes from the limiting cover plate 2. The support part can also be used to facilitate user gripping. The support part and the gripping part 32 do not interfere with each other.

[0047] Optionally, the gripping part 32 is a protrusion, handle or raised section integrally formed along the outer edge of the locking cover plate 3. The shape of the gripping part 32 can be designed as a strip, block or arc structure according to the operation requirements.

[0048] Specifically, the surface of the gripping part 32 may be provided with an anti-slip texture or a curved transition to improve friction and comfort when fingers are in contact. By providing the gripping part 32, the operator can open and close the locking cover 3 directly by gripping or flicking it with their fingers without the need for additional tools.

[0049] In one embodiment, when the support block 33 abuts against the limiting cover plate 2, the gap between the locking cover plate body 31 and the circuit board assembly is greater than or equal to 5mm. Thus, during the closing or rotation of the locking cover plate 3, the locking cover plate 3 can avoid squeezing or colliding with the circuit board assembly, preventing damage to the circuit board and its components, while also providing safe space for assembly and disassembly operations, improving assembly reliability and product safety.

[0050] Specifically, when the support block 33 abuts against the limiting cover plate 2, the gap between the locking cover plate body 31 and the circuit board assembly is greater than or equal to 5mm, and the gap between the sleeve 34 and the circuit board assembly is greater than or equal to 2mm.

[0051] In one embodiment, the limiting window and the circuit board mount are contoured, and the limiting window allows the circuit board assembly to pass through. The contoured design of the limiting window and the circuit board mount allows for a close fit, improving guidance and stability during assembly. Simultaneously, the allowing the circuit board assembly to pass through enables smooth installation or removal of the circuit board assembly within the limiting structure, ensuring positioning accuracy while facilitating operation and improving assembly reliability and efficiency.

[0052] Specifically, the limiting window on the limiting cover 2 is designed to mimic the shape of the circuit board mounting component, meaning the shape and size of the limiting window correspond to the outer contour of the circuit board mounting component, ensuring accurate alignment when the cover is closed. The opening size of the limiting window is slightly larger than the outer dimensions of the circuit board mounting component, allowing the circuit board assembly to pass through and mate with the circuit board mounting component while maintaining positioning accuracy.

[0053] Preferably, the gap between the limiting window and the circuit board mounting component disposed in the limiting window is greater than or equal to 1 mm.

[0054] Furthermore, the mounting base 1 also includes at least one limiting part 13, which can restrict the planar movement of the circuit board mounting component. The limiting part 13 can limit the planar direction of the circuit board mounting component when it is placed in the mounting position 11, preventing the circuit board mounting component from shifting laterally or longitudinally during assembly or under stress, thereby improving the stability of the mounting position 11 and the assembly accuracy of the circuit board assembly.

[0055] In one embodiment, the mounting base 1 adopts a corner block limiting structure, with limiting blocks set at the four corners of the mounting position 11. The four limiting blocks enclose a rectangular mounting area, and there is a fitting gap between the outer contour of the circuit board mounting component and the boundary of the area, so as to restrict the movement of the circuit board mounting component in the plane after installation.

[0056] Specifically, the limiting part 13 is a limiting block or flange structure disposed around the mounting position 11, and the position and number of the limiting parts 13 are set according to the shape of the circuit board mounting component. When the circuit board mounting component is placed in the mounting position 11, its outer surface forms a clearance fit with the limiting part 13, thereby limiting its horizontal movement without affecting the assembly.

[0057] The following describes the working process of a preferred positioning device in this application embodiment, using a specific application scenario as an example: First, the circuit board mounting component is placed in the mounting position 11 of the mounting base 1. The limiting part of the mounting position 11 guides and restricts the planar position of the circuit board mounting component, so that the circuit board mounting component is stably positioned in the horizontal direction. Then, rotate the limiting cover 2 in the direction toward the mounting position 11. When the limiting cover 2 is rotated to the limit position, the limiting window is aligned with the mounting position 11, and the lower surface of the limiting cover 2 abuts against the support member 12. Place the circuit board assembly in the limiting window of the limiting cover 2 so that the mounting hole on the circuit board assembly is engaged with the positioning post, thereby achieving precise positioning of the circuit board assembly in the vertical direction.

[0058] Then, continue to rotate the locking cover plate 3 in the direction toward the mounting position 11, so that the sleeve 34 on the locking cover plate 3 is aligned with the fastening mounting position 11 of the circuit board assembly, and the fastener passes through the through hole of the sleeve 34 and cooperates with the fastening mounting position 11 to achieve locking and fixing of the circuit board assembly. Finally, by rotating the limiting cover 2 in the direction away from the mounting position 11 by the gripping part 32 and driving the locking cover 3, the circuit board assembly and the circuit board mounting part are released from constraint, and the completed circuit board assembly and circuit board mounting part are taken out.

[0059] The following describes specific embodiments of this application based on the above technical solution.

[0060] Example 1 Please see Figure 1-8 This embodiment provides a positioning device for a circuit board assembly, the positioning device comprising: Mounting base 1 is provided with mounting position 11 for accommodating circuit board mounting component. Mounting position 11 can restrict planar movement of circuit board mounting component. One of the circuit board mounting component and circuit board assembly is provided with positioning post, and the other is provided with mounting hole matching positioning post. The limiting cover 2, rotatably connected to the mounting base 1, includes a limiting window that mates with the circuit board assembly. When the limiting cover 2 is rotated to its limit position toward the mounting base 1, the limiting window aligns with the mounting position 11, so that the positioning hole of the circuit board assembly mates with the positioning post of the circuit board mount. The limiting window and the circuit board mount are contoured, and the limiting window allows the circuit board assembly to pass through.

[0061] The positioning device also includes a locking cover plate 3 located on the side of the limiting cover plate 2 facing away from the mounting base 1. The locking cover plate 3 includes a locking cover plate body 31 and at least one sleeve 34. The locking cover plate body 31 is rotatably connected to the mounting base 1. At least one sleeve 34 is disposed on the side plate surface of the locking cover plate body 31 facing the mounting base 1, and the sleeve 34 can allow fasteners to pass through. When the locking cover 3 rotates to its limit position toward the limiting cover 2, the sleeve 34 aligns with the fastening mounting position 11 of the circuit board assembly. When the support 12 abuts against the limiting cover 2, the plane containing the limiting window is parallel to the plane containing the mounting position 11. When the locking cover 3 rotates to its limit position toward the limiting cover 2, the plane containing the limiting window is parallel to the plane containing the mounting position 11.

[0062] The mounting base 1 also includes a support member 12 protruding from the periphery of the mounting position 11. When the limiting cover 2 rotates toward the mounting base 1 to its limit position, the support member 12 can abut against the limiting cover 2, so that a space for accommodating the circuit board mounting component is formed between the mounting position 11 and the limiting cover 2. It also includes a support block 33, and at least one of the locking cover 3 and the limiting cover 2 is provided with the support block 33. When the locking cover 3 rotates toward the limiting cover 2 to its limit position, the support block 33 supports and connects between the locking cover 3 and the limiting cover 2. The limiting cover 2 can be driven by the support block 33 to move in a direction away from the mounting base 1. When the support block 33 abuts against the limiting cover 2, the gap between the locking cover body 31 and the circuit board assembly is greater than or equal to 5mm. The locking cover 3 is provided with a gripping part 32, which protrudes relative to the locking cover body 31.

[0063] Example 2 The similarities between Embodiment 2 and Embodiment 1 will not be repeated here. The mounting base 1 also includes at least one limiting part 13, which can limit the planar movement of the circuit board mounting component.

[0064] The above description is merely an embodiment of this application and is not intended to limit the scope of this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of the claims of this application.

[0065] Although embodiments of this application have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of this application, and such modifications and variations all fall within the scope defined by the appended claims.

Claims

1. A positioning device for a circuit board assembly, characterized in that, The positioning device includes: The mounting base (1) is provided with a mounting position (11) for accommodating the circuit board mounting component. The mounting position (11) can restrict the planar movement of the circuit board mounting component. One of the circuit board mounting component and the circuit board assembly is provided with a positioning post, and the other is provided with a mounting hole that matches the positioning post. The limiting cover (2) is rotatably connected to the mounting base (1) and includes a limiting window that can cooperate with the circuit board assembly. When the limiting cover (2) is rotated toward the mounting base (1) to the limit position, the limiting window is aligned with the mounting position (11) so that the positioning hole of the circuit board assembly cooperates with the positioning post of the circuit board mounting component.

2. The positioning device according to claim 1, characterized in that, The positioning device further includes a locking cover plate (3) located on the side of the limiting cover plate (2) facing away from the mounting base (1). The locking cover plate (3) includes a locking cover plate body (31) and at least one sleeve (34). The locking cover plate body (31) is rotatably connected to the mounting base (1). The at least one sleeve (34) is disposed on the side plate surface of the locking cover plate body (31) facing the mounting base (1), and the sleeve (34) allows fasteners to pass through. When the locking cover (3) rotates toward the limiting cover (2) to the limit position, the sleeve (34) is aligned with the fastening position of the circuit board assembly.

3. The positioning device according to claim 1, characterized in that, The mounting base (1) also includes a support member (12) protruding from the periphery of the mounting position. When the limiting cover plate (2) rotates toward the mounting base (1) to the limit position, the support member (12) can abut against the limiting cover plate (2) so that the mounting position and the limiting cover plate (2) form an accommodating space for the circuit board mounting component.

4. The positioning device according to claim 3, characterized in that, When the support member (12) abuts against the limiting cover plate (2), the plane where the limiting window is located is parallel to the plane where the mounting position (11) is located.

5. The positioning device according to claim 2, characterized in that, It also includes a support block (33), wherein at least one of the locking cover plate (3) and the limiting cover plate (2) is provided with the support block (33); When the locking cover plate (3) rotates toward the limiting cover plate (2) to the limit position, the support block (33) is supported and connected between the locking cover plate (3) and the limiting cover plate (2); The limiting cover plate (2) can drive the locking cover plate (3) to move in a direction away from the mounting base (1) through the support block (33).

6. The positioning device according to claim 2, characterized in that, When the locking cover (3) rotates toward the limiting cover (2) to its limit position, the plane where the limiting window is located is parallel to the plane where the mounting position (11) is located.

7. The positioning device according to claim 2, characterized in that, The locking cover plate (3) is provided with a gripping part (32), which protrudes from the main body (31) of the locking cover plate.

8. The positioning device according to claim 5, characterized in that, When the support block (33) abuts against the limiting cover plate (2), the gap between the locking cover plate body (31) and the circuit board assembly is greater than or equal to 5mm.

9. The positioning device according to any one of claims 1-4, characterized in that, The limiting window and the circuit board mounting component are configured in a similar shape, and the limiting window allows the circuit board assembly to pass through.

10. The positioning device according to any one of claims 1-4, characterized in that, The mounting base (1) further includes at least one limiting part (13) which can limit the planar movement of the circuit board mounting component.

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