PCB assembly

Abstract

The utility model discloses a PCB assembly. The PCB assembly comprises a first PCB; the support is fixedly connected to the first PCB (Printed Circuit Board); the second PCB is fixed on the bracket; and the first PCB and the second PCB are connected through the elastic sheet so as to transmit a power supply and a communication signal. The PCB assembly provided by the utility model effectively solves the problem of poor contact easily caused by the adoption of an elastic sheet contact butt joint mode between PCBs in the prior art.

Description

Technical Field

[0001] The utility model relates to the technical field of circuit boards, in particular to a PCB board assembly. Background Art

[0002] In today's product designs, the increasing number of functions and structural limitations often necessitate the docking of different PCBs to achieve product functionality. For example, the keypad PCB needs to be spaced a certain distance from the main PCB to detect changes in air capacitance, while the WiFi module needs to be spaced a certain distance from the main PCB to facilitate signal transmission. Furthermore, multiple PCB layouts can accommodate more components and achieve a wider range of functions. Docking with pins presents issues such as floating height and easy insertion error. Therefore, the use of spring contacts is a relatively new docking method.

[0003] The docking method using spring contact also has its shortcomings. During the spring contact process, since the spring is always under stress, if there is no effective limit between the two PCB boards, the spring will push the structure out of shape and cause poor contact.

[0004] In summary, in the prior art, the PCB boards are connected by spring contact, which easily leads to poor contact. Utility Model Content

[0005] The embodiment of the present invention provides a PCB board assembly to solve the problem in the prior art that the PCB boards are connected in a manner that uses spring contacts, which easily leads to poor contact.

[0006] To achieve the above objectives, the present invention provides a PCB board assembly, comprising: a first PCB board; a bracket fixedly connected to the first PCB board; a second PCB board fixed to the bracket; and a spring clip, through which the first PCB board and the second PCB board are connected to transmit power and communication signals.

[0007] Furthermore, the second PCB board is fixedly connected to the bracket by means of a snap.

[0008] Furthermore, the bracket includes a limiting buckle and a movable buckle;

[0009] The limiting buckle is provided corresponding to the second PCB board;

[0010] The movable buckle is correspondingly arranged at an edge position of the second PCB board, and the movable buckle restricts the edge of the second PCB board.

[0011] Furthermore, the limiting buckle is a step structure, and the movable buckle is an elastic hook structure.

[0012] Furthermore, the bracket is inserted into or mounted on the first PCB board, and the bracket is fixed to the first PCB board by welding.

[0013] Furthermore, the bracket is welded on the first PCB board by wave soldering or reflow soldering.

[0014] Furthermore, the elastic sheet includes a base and a spring sheet, and the spring sheet is connected to the base.

[0015] Furthermore, the spring sheet is connected to the first PCB board, and the base is connected to the second PCB board.

[0016] Furthermore, the spring sheet is connected to the second PCB board, and the base is connected to the first PCB board.

[0017] Furthermore, there are a plurality of spring sheets, the plurality of spring sheets are arranged at intervals, the spring sheets are made of elastic conductive metal material, and the plurality of spring sheets are connected to one base.

[0018] In this utility model, a bracket structure is added to the PCB assembly, which is fixedly connected to the first PCB. The bracket's force offsets the stress generated by the compression of the spring, limiting the position of the two PCBs. This prevents the spring from tilting the structure, maintaining stable contact over time to transmit power current and communication signals. Compared to traditional methods, this PCB assembly eliminates the problem of spring offset and significantly improves communication and power supply stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic structural diagram of a PCB board assembly according to a first embodiment of the present invention;

[0020] Figure 2 1 is a cross-sectional schematic diagram of a PCB board assembly according to the first embodiment of the present invention;

[0021] Figure 3 This is a schematic structural diagram of a PCB board assembly according to a second embodiment of the present invention;

[0022] Figure 4 It is a cross-sectional schematic diagram of the PCB board assembly of the second embodiment of the present utility model. DETAILED DESCRIPTION

[0023] The present invention will be described in further detail below with reference to the accompanying drawings and specific embodiments, but this does not limit the present invention.

[0024] Example 1

[0025] See also Figure 1 and Figure 2As shown, according to the first embodiment of the present invention, a PCB board assembly is provided, which includes a first PCB board 10, a bracket 20, a second PCB board 30 and a spring 40. The bracket 20 is fixedly connected to the first PCB board 10; the second PCB board 30 is fixed to the bracket 20; the first PCB board 10 and the second PCB board 30 are connected by the spring 40 to transmit power and communication signals.

[0026] In this utility model, a bracket structure is added to the PCB assembly, which is fixedly connected to the first PCB. The bracket's force offsets the stress generated by the compression of the spring, limiting the position of the two PCBs. This prevents the spring from tilting the structure, maintaining stable contact over time to transmit power current and communication signals. Compared to traditional methods, this PCB assembly eliminates the problem of spring offset and significantly improves communication and power supply stability.

[0027] Preferably, the second PCB board 30 is fixedly connected to the bracket 20 by snap fastening.

[0028] The second PCB board is directly fixed on the bracket and adopts a snap-on fixing method, which is convenient for installation and disassembly, and improves production and installation efficiency.

[0029] Combine Figure 1 and Figure 2 As shown, the bracket 20 includes a limiting buckle 21 and a movable buckle 22; the limiting buckle 21 is correspondingly arranged to the second PCB board 30; the movable buckle 22 is correspondingly arranged at the edge position of the second PCB board 30, and the movable buckle 22 limits the edge of the second PCB board 30.

[0030] During installation, the second PCB is first inserted from one side of the limit buckle, and then the second PCB is clamped into the movable buckle, so that the movable buckle 22 clamps the edge of the second PCB. The limit buckle 21 and the movable buckle 22 cooperate to fix the second PCB in the bracket 20.

[0031] In this embodiment, the limiting buckle 21 is a step structure, and the movable buckle 22 is an elastic hook structure.

[0032] The limit buckle has a stepped structure, while the movable buckle is an elastic hook structure made of a tough material. The movable buckle is thinner than the limit buckle. The number of limit buckles and movable buckles in the bracket is not limited; they can be used to secure the second PCB. In this embodiment, the bracket includes two limit buckles and two movable buckles.

[0033] Preferably, the bracket 20 is inserted into or mounted on the first PCB board 10 , and the bracket 20 and the first PCB board 10 are fixed by welding.

[0034] The bracket can adopt a frame structure or full-surface welding, and welding can improve the stability of the bracket. This embodiment adopts full-surface welding.

[0035] Preferably, the bracket 20 is welded on the first PCB board 10 by wave soldering or reflow soldering. This embodiment adopts wave soldering.

[0036] The spring piece can be soldered to the first PCB board or the second PCB board, and the soldering of the spring piece is preferably performed by reflow soldering.

[0037] See also Figure 1 and Figure 2 The spring piece 40 includes a base 41 and a spring piece 42 , and the spring piece 42 is connected to the base 41 .

[0038] The spring piece 42 is connected to the first PCB board 10 , and the base 41 is connected to the second PCB board 30 .

[0039] The base 41 is soldered to the second PCB 30, while a number of springs 42 connect the base to the first PCB. The base 41 has an insulating outer shell and a conductive metal inner shell that electrically connects to the springs 42. This connection between the base 41 and the springs 42 provides a more stable connection and improves power supply stability.

[0040] Preferably, there are a plurality of spring pieces 42 , and the plurality of spring pieces 42 are arranged at intervals. The spring pieces 42 are made of elastic conductive metal material, and the plurality of spring pieces 42 are connected to one base 41 .

[0041] Example 2

[0042] See also Figure 3 and Figure 4 As shown, according to the second embodiment of the present invention, a PCB board assembly is provided, which includes a first PCB board 10, a bracket 20, a second PCB board 30 and a spring 40. The bracket 20 is fixedly connected to the first PCB board 10; the second PCB board 30 is fixed to the bracket 20; the first PCB board 10 and the second PCB board 30 are connected by the spring 40 to transmit power and communication signals.

[0043] In this utility model, a bracket structure is added to the PCB assembly, which is fixedly connected to the first PCB. The bracket's force offsets the stress generated by the compression of the spring, limiting the position of the two PCBs. This prevents the spring from tilting the structure, maintaining stable contact over time to transmit power current and communication signals. Compared to traditional methods, this PCB assembly eliminates the problem of spring offset and significantly improves communication and power supply stability.

[0044] Preferably, the bracket 20 is welded on the first PCB board 10 by wave soldering or reflow soldering. This embodiment adopts wave soldering.

[0045] The spring piece can be soldered to the first PCB board or the second PCB board, and the soldering of the spring piece is preferably performed by reflow soldering.

[0046] See also Figure 3 and Figure 4 The spring piece 40 includes a base 41 and a spring piece 42 , and the spring piece 42 is connected to the base 41 .

[0047] The spring piece 42 is connected to the second PCB board 30 , and the base 41 is connected to the first PCB board 10 .

[0048] The base 41 is soldered to the first PCB 10, while a number of springs 42 connect the base to the second PCB. The base 41 has an insulating outer shell and a conductive metal inner shell that electrically connects to the springs 42. This connection between the base 41 and the springs 42 provides a more stable connection and improves power supply stability.

[0049] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, tasks, devices, components and / or combinations thereof.

[0050] It should be noted that the terms "first," "second," and the like in the specification and claims of this application and the accompanying drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or precedence. It should be understood that the terms used in this manner are interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than that illustrated or described herein.

[0051] Of course, the above are preferred embodiments of the present invention. It should be noted that, for those skilled in the art, without departing from the basic principles of the present invention, several improvements and modifications can be made, and these improvements and modifications are also considered to be within the scope of protection of the present invention.

Claims

1. A PCB board assembly, characterized in that: include: A first PCB board (10); a bracket (20), the bracket (20) being fixedly connected to the first PCB board (10); A second PCB board (30) is fixed on the bracket (20); A spring (40) is provided, wherein the first PCB board (10) and the second PCB board (30) are connected via the spring (40) to transmit power and communication signals.

2. The PCB board assembly according to claim 1, characterized in that: The second PCB board (30) is fixedly connected to the bracket (20) via a buckle.

3. The PCB board assembly according to claim 2, characterized in that: The bracket (20) includes a limiting buckle (21) and a movable buckle (22); The limiting buckle (21) is arranged corresponding to the second PCB board (30); The movable buckle (22) is correspondingly arranged at an edge position of the second PCB board (30), and the movable buckle (22) limits the edge of the second PCB board (30).

4. The PCB board assembly according to claim 3, characterized in that: The position-limiting buckle (21) is a step structure, and the movable buckle (22) is an elastic hook structure.

5. The PCB board assembly according to claim 1, characterized in that: The bracket (20) is inserted into or mounted on the first PCB board (10), and the bracket (20) and the first PCB board (10) are fixed by welding.

6. The PCB board assembly according to claim 1, characterized in that: The bracket (20) is welded on the first PCB board (10) by wave soldering or reflow soldering.

7. The PCB board assembly according to claim 1, characterized in that: The elastic sheet (40) comprises a base (41) and a spring sheet (42), and the spring sheet (42) is connected to the base (41).

8. The PCB assembly according to claim 7, wherein: The spring sheet (42) is connected to the first PCB board (10), and the base (41) is connected to the second PCB board (30).

9. The PCB board assembly according to claim 7, characterized in that: The spring sheet (42) is connected to the second PCB board (30), and the base (41) is connected to the first PCB board (10).

10. The PCB board assembly according to claim 7, characterized in that: There are a plurality of spring sheets (42), which are spaced apart. The spring sheets (42) are made of elastic conductive metal material. The plurality of spring sheets (42) are connected to one base (41).

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