Circuit board fixing device

Abstract

The utility model provides a circuit board fixing device. The circuit board fixing device comprises a bottom plate, a frame and a fastening assembly, a limiting groove is formed in the bottom plate, a welding hole and a protection area are arranged at the bottom of the limiting groove, the welding hole corresponds to a welding area of the circuit board, the protection area abuts against a non-welding area of the circuit board, and an element protection groove communicated with the limiting groove is formed in the protection area. The frame is arranged along the periphery of the bottom plate and detachably connected with the bottom plate. The fastening assembly comprises a connecting piece, a fixing piece and an elastic pressing piece, the connecting piece is arranged along the periphery of the limiting groove, one end of the elastic pressing piece is connected with the connecting piece, the other end of the elastic pressing piece is provided with an insulating piece, the insulating piece abuts against the circuit board, the fixing piece is connected with one end of the connecting piece, and the fixing piece abuts against the elastic pressing piece. According to the circuit board fixing device, by arranging the limiting groove and the elastic pressing piece, the circuit board is prevented from moving in the process of passing through wave soldering equipment, it is ensured that the circuit board is kept stable in the whole soldering process, and therefore the soldering quality and efficiency are improved.

Description

Technical Field

[0001] This disclosure relates to the technical field of wave soldering, and in particular to a circuit board fixing device. Background Technology

[0002] To enhance integration and functionality, modern electronic products often incorporate surface-mount (SMT) components and through-hole components on their internal printed circuit boards (PCBs). During production, SMT components are first mounted and reflowed for fixation, followed by wave soldering of the through-hole components. Specialized fixtures are required when using wave soldering equipment to prevent solder peaks from damaging the PCB and SMT components or causing soldering defects.

[0003] However, selective wave soldering is prone to problems such as solder balls and floating. Traditional fixtures use screws and claws to fix the PCB board, which is complicated to operate, inefficient, and provides limited protection for the circuit board and components, and is prone to damage. Utility Model Content

[0004] The purpose of this disclosure is to overcome the shortcomings of the prior art and provide a circuit board fixing device that is easy to operate and has better protection performance.

[0005] The purpose of this disclosure is achieved through the following technical solution:

[0006] A circuit board fixing device for wave soldering fixing, comprising:

[0007] The base plate has a limiting groove, and the bottom of the limiting groove is provided with welding holes and a protection zone. The welding holes are provided corresponding to the welding area of ​​the circuit board, and the protection zone abuts against the non-welding area of ​​the circuit board. A component protection groove communicating with the limiting groove is provided in the protection zone.

[0008] A frame is provided along the periphery of the base plate, and the frame is detachably connected to the base plate;

[0009] A fastening assembly includes a connector, a fixing member, and an elastic pressure plate. The connector is disposed along the periphery of the limiting groove. One end of the elastic pressure plate is connected to the connector, and the other end of the elastic pressure plate is provided with an insulating member that abuts against the circuit board. The fixing member is connected to one end of the connector and abuts against the elastic pressure plate.

[0010] In one embodiment, the insulating element is sleeved on one end of the elastic pressure plate.

[0011] In one embodiment, the end of the elastic pressure plate away from the adjusting member has a raised portion.

[0012] In one embodiment, the frame has mounting holes, and the connector is located inside the mounting holes.

[0013] In one embodiment, the fastener is threadedly connected to the connector.

[0014] In one embodiment, the circuit board fixing device is further provided with a guide edge, which is disposed between the base plate and the frame, and the guide edge protrudes from the base plate.

[0015] In one embodiment, the insulating element further includes a pad connected to the end of the elastic pressure plate, the pad abutting against the circuit board and the base plate.

[0016] In one embodiment, the circuit board fixing device further includes a limiting block, which is installed on the outside of the limiting groove and movably abuts against the base plate.

[0017] Compared with the prior art, this disclosure has at least the following advantages:

[0018] 1. The circuit board fixing device, by incorporating limiting grooves and elastic pressure plates, prevents the circuit board from shifting during its passage through the wave soldering equipment, ensuring its stability throughout the soldering process and thus improving soldering quality and efficiency. Simultaneously, by setting up protective zones and component protection grooves within the limiting grooves, it prevents soldering materials from damaging non-soldering areas and SMT components.

[0019] 2. When loading and unloading circuit boards, operators only need to lift the end of the elastic pressure plate and rotate it to move the elastic pressure plate away from the limiting groove to complete the loading and unloading of the circuit board; at the same time, the elastic pressure plate can adapt to circuit boards of different thicknesses, and can press the circuit board without adjustment, simplifying the clamping process, reducing the difficulty of manual operation, and improving production efficiency. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of this disclosure, the accompanying drawings used in the embodiments will be briefly described below. It should be understood that the following drawings only show some embodiments of this disclosure and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the structure of a circuit board fixing device according to one embodiment;

[0022] Figure 2 for Figure 1 A schematic diagram of the circuit board fixing device from another perspective.

[0023] Figure 3 for Figure 1 A cross-sectional view of the circuit board fixing device shown. Detailed Implementation

[0024] To facilitate understanding of this disclosure, a more complete description will be given below with reference to the accompanying drawings, which illustrate preferred embodiments of the present disclosure. However, this disclosure can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure.

[0025] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly attached to the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of this disclosure. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0027] To better understand the technical solutions and beneficial effects of this disclosure, the following detailed description is provided in conjunction with specific embodiments:

[0028] Please see Figures 1 to 3 The circuit board fixing device 10, as an embodiment of this utility model, includes a base plate 100, a frame 200, and a fastening assembly 300. The base plate 100 has a limiting groove 110, with welding holes 1101 and a protection zone at its bottom. The welding holes 1101 correspond to the welding areas of the circuit board, and the protection zone abuts against the non-welding areas of the circuit board. A component protection groove 1121 communicating with the limiting groove 110 is provided within the protection zone. The frame 200 is arranged along the periphery of the base plate 100, and the frame 200 is detachably connected to the base plate 100. The fastening assembly 300 includes a connector 310, a fixing member 320, and an elastic pressure plate 330. The connector 310 is arranged along the periphery of the limiting groove 110. One end of the elastic pressure plate 330 is connected to the connector 310, and the other end of the elastic pressure plate 330 is provided with an insulating member 331. The insulating member 331 abuts against the circuit board. The fixing member 320 is connected to one end of the connector 310 and abuts against the elastic pressure plate 330.

[0029] In this embodiment, the circuit board fixing device 10, by setting a limiting groove 110 and an elastic pressure plate 330, prevents the circuit board from shifting during the wave soldering process, ensuring the circuit board remains stable throughout the soldering process, thereby improving soldering quality and efficiency. Simultaneously, by setting a protection zone and a component protection groove 1121 in the limiting groove 110, damage to non-soldering areas and SMT components by soldering materials is prevented.

[0030] Furthermore, when loading and unloading circuit boards, operators only need to lift the end of the elastic pressure plate 330 and rotate it to move the elastic pressure plate 330 away from the limiting groove 110 to complete the loading and unloading of the circuit board. At the same time, the elastic pressure plate 330 can adapt to circuit boards of different thicknesses and can press the circuit board without adjustment, simplifying the clamping process, reducing the difficulty of manual operation, and improving production efficiency.

[0031] like Figure 3 As shown, in this embodiment, the insulating member 331 is sleeved on one end of the elastic pressure plate 330. It can be understood that the insulating member 331 can prevent electrical problems such as short circuits caused by direct contact between the circuit board and the elastic pressure plate 330, thereby improving the reliability and safety of the circuit board fixing device 10.

[0032] Specifically, in this embodiment, the insulating element 331 is an insulating rubber ring, which can be directly fitted onto the end of the elastic pressure plate 330, making it easy to maintain and replace, and not easy to fall off.

[0033] like Figure 3 As shown, in this embodiment, a lifting portion 311 is formed at the end of the elastic pressure plate 330 away from the connector 310. Specifically, in this embodiment, the end of the elastic pressure plate 330 that abuts against the circuit board is bent backward to form the lifting portion 311, which facilitates the operator to lift the elastic pressure plate 330 to load and unload the circuit board.

[0034] like Figure 3 As shown, in this embodiment, the frame 200 has a mounting hole 201, and the connector 310 is located inside the mounting hole 201. It can be understood that one end of the elastic pressure plate 330 is mounted on the frame 200 through the connector 310. Integrating the mounting position of the elastic pressure plate 330 into the frame 200 can maximize the use of space and make the structure of the entire circuit board fixing device 10 more compact.

[0035] like Figure 3As shown, in this embodiment, the fixing member 320 and the connecting member 310 are threadedly connected. Specifically, in this embodiment, the fixing member 320 is a nut, and the connecting member 310 is a bolt. The connecting member 310 passes through the frame 200, and the elastic pressure plate 330 and the fixing member 320 are sequentially sleeved on the end of the connecting member 310 that extends out of the frame 200. Through the tightening action of the nut and the bolt, the elastic pressure plate 330 is stably pressed, preventing the elastic pressure plate 330 from shifting during use, thus ensuring the stability and ease of operation of the circuit board fixing device 10.

[0036] like Figure 1 and Figure 3 As shown, in this embodiment, the circuit board fixing device 10 is further provided with a guide edge 400, which is disposed between the base plate 100 and the frame 200, and protrudes from the base plate 100. Specifically, in this embodiment, there is one guide edge 400, which is disposed on the outer side of the frame 200. The guide edge 400 can prevent operators from misplacing the circuit board, enabling operators to quickly and accurately place the circuit board into the predetermined position, thereby improving the accuracy of circuit board assembly and the convenience of circuit board fixing assembly.

[0037] like Figure 3 As shown, in this embodiment, the insulating component 331 further includes a pad 3311, which is connected to the end of the elastic pressure plate and abuts against the circuit board and the base plate 100. Specifically, in this embodiment, the pad 3311 is made of silicone, which has good insulation properties and good elasticity. The silicone pad 3311 abuts against the periphery of the limiting groove 110 to prevent the circuit board from shifting due to vibration and improve the welding quality.

[0038] like Figure 1 As shown, in this embodiment, the circuit board fixing device 10 further includes a limiting block 500, which is installed on the outside of the limiting groove 110 and movably abuts against the base plate 100. Specifically, in this embodiment, there are two limiting blocks 500, which are arranged at two opposite corners of the limiting groove 110, thereby preventing the circuit board from shifting or bending during use and improving the stability of the circuit board during wave soldering. Furthermore, the limiting block 500 has a clearance groove, the opening of which corresponds to the corner of the limiting groove 110. By rotating the limiting block 500 to make the groove wall of the clearance groove flush with the groove wall of the limiting groove 110, the circuit board can be loaded and unloaded, improving the efficiency of circuit board loading and unloading.

[0039] Compared with the prior art, this disclosure has at least the following advantages:

[0040] 1. The circuit board fixing device, by setting limit grooves and elastic pressure plates, prevents the circuit board from shifting during the wave soldering process, ensuring the circuit board remains stable throughout the soldering process, thereby improving soldering quality and efficiency. Simultaneously, by setting protection zones and component protection grooves 1121 in the limit grooves, damage to non-soldering areas and SMT components by soldering materials is prevented.

[0041] 2. When loading and unloading circuit boards, operators only need to lift the end of the elastic pressure plate and rotate it to move the elastic pressure plate away from the limiting groove to complete the loading and unloading of the circuit board; at the same time, the elastic pressure plate can adapt to circuit boards of different thicknesses, and can press the circuit board without adjustment, simplifying the clamping process, reducing the difficulty of manual operation, and improving production efficiency.

[0042] The embodiments described above are merely illustrative of several implementations of this disclosure, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the disclosed patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this disclosure, and these all fall within the protection scope of this disclosure. Therefore, the protection scope of this patent should be determined by the appended claims.

Claims

1. A circuit board fixing device for wave soldering equipment, characterized in that, include: The base plate has a limiting groove, and the bottom of the limiting groove is provided with welding holes and a protection zone. The welding holes are provided corresponding to the welding area of ​​the circuit board, and the protection zone abuts against the non-welding area of ​​the circuit board. A component protection groove communicating with the limiting groove is provided in the protection zone. A frame is provided along the periphery of the base plate, and the frame is detachably connected to the base plate; A fastening assembly includes a connector, a fixing member, and an elastic pressure plate. The connector is disposed along the periphery of the limiting groove. One end of the elastic pressure plate is connected to the connector, and the other end of the elastic pressure plate is provided with an insulating member that abuts against the circuit board. The fixing member is connected to one end of the connector and abuts against the elastic pressure plate.

2. The circuit board fixing device according to claim 1, characterized in that, The insulating component is sleeved on one end of the elastic pressure plate.

3. The circuit board fixing device according to claim 1, characterized in that, The end of the elastic pressure plate away from the adjusting member has a raised portion.

4. The circuit board fixing device according to claim 1, characterized in that, The frame has mounting holes, and the connector is located inside the mounting holes.

5. The circuit board fixing device according to claim 1, characterized in that, The fastener is threadedly connected to the connector.

6. The circuit board fixing device according to claim 1, characterized in that, The circuit board fixing device is also provided with a guide edge, which is disposed between the base plate and the frame, and the guide edge protrudes from the base plate.

7. The circuit board fixing device according to claim 1, characterized in that, The insulating component also includes a pad, which is connected to the end of the elastic pressure plate and abuts against the circuit board and the base plate.

8. The circuit board fixing device according to claim 1, characterized in that, The circuit board fixing device also includes a limiting block, which is installed on the outside of the limiting groove and moves in contact with the base plate.

Images