Fixing device of circuit board

Abstract

The utility model relates to the technical field of circuit boards, and discloses a circuit board fixing device which comprises a fixing frame, fixing blocks are fixedly connected to the four corners of the outer portion of the fixing frame, sliding blocks are slidably connected to the interiors of the multiple fixing blocks, a driving assembly is arranged on the close sides of every two fixing blocks, and the driving assembly is connected with the sliding blocks. First fixing shafts are fixedly connected to the interiors of the multiple sliding blocks, rotating blocks are rotatably connected to the exteriors of the multiple first fixing shafts, pressing plates are fixedly connected to the sides, close to the fixing frame, of the multiple rotating blocks, and second fixing shafts are rotatably connected to the interiors of the multiple pressing plates; and the interiors of the multiple rotating blocks are slidably connected with sliding columns. According to the utility model, the circuit board can be quickly fixed and disassembled, the fixing efficiency of the circuit board is greatly improved, and meanwhile, the circuit board can be protected, so that the protection capability of the circuit board can be improved.

Description

Technical Field

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

[0002] With the development of science and technology, circuit boards have miniaturized and visualized circuits, playing an important role in the mass production of fixed circuits and the optimization of electrical appliance layout. Circuit boards can be called printed circuit boards or printed circuit boards, referred to as FPC circuit boards (FPC circuit boards are also called flexible circuit boards. Flexible circuit boards are made of polyimide or polyester film as substrates. They are highly reliable and extremely flexible printed circuit boards. They have the characteristics of high wiring density, light weight, thin thickness, and good bending properties) and the birth and development of hard-and-soft boards FPC and PCB have given rise to a new product, the hard-and-soft board. Therefore, the hard-and-soft board is a flexible circuit board and a hard circuit board, which are combined together according to relevant process requirements after lamination and other processes to form a circuit board with FPC characteristics and PCB characteristics.

[0003] After searching, the Chinese patent document announcement number is: CN203378170U. The utility model discloses a fixing device for a circuit board, which includes: a main fixing plate, a circuit board, a through hole, a bottom plate, a support column, a screw hole, an external thread, a sleeve, a light hole, a screw hole, and a fixing rivet; the circuit board is fixed on the bottom plate by the fixing rivet, and three pairs of axial opening cuts are arranged on the top of the fixing rivet, and a circle of grooves are arranged at the place where the head and the tube of the fixing rivet are connected, and the bottom plate is arranged at the lowest end of the circuit board fixing device; the support column is arranged on the bottom plate, the lower part of the support column is connected to the bottom plate, the upper part of the support column is connected to the sleeve, the sleeve is arranged on the support column, the inside of the sleeve is arranged with a screw hole, and the top of the screw hole is arranged with a light hole, the two sides of the bottom plate are arranged with a main fixing plate, and the four corners of the circuit board are arranged with through holes. The fixing rivet of the utility model can be used reciprocally, which reduces the material cost, and the groove of the fixing rivet reduces the internal stress of the head of the fixing rivet.

[0004] Although the above patent mentioned in the specification that "the fixing device for the circuit board provided by the utility model, the fixing rivet is set as a special rivet, which can be used reciprocatingly during the assembly and disassembly of the circuit board, which is beneficial to reducing material costs, and a circle of grooves is set at the place where the head and the tube of the fixing rivet 6 are connected, which is beneficial to reducing the internal stress of the head of the fixing rivet 6 and preventing breakage; the setting of the sleeve makes it only necessary to replace the sleeve without replacing the support column during assembly and disassembly, which is beneficial to saving materials; the setting of the support column is made of lightweight alloy, which not only reduces weight but also saves materials, which is beneficial to reducing costs. In addition, the utility model has a simple structure, easy operation, low manufacturing cost, and is beneficial to fixing the circuit board and reducing production costs", but during the installation process, it is necessary to use auxiliary tools to realize the use of rivets, which is not only time-consuming and labor-intensive, but also inconvenient for rapid fixing and disassembly. Therefore, in view of the above shortcomings, a fixing device for the circuit board is proposed. Utility Model Content

[0005] The utility model aims to solve the shortcomings in the prior art and proposes a circuit board fixing device, aiming to improve the problem in the prior art that some circuit boards are not convenient for quick fixing and disassembly.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] The fixing device of a circuit board comprises a fixing frame, wherein the four outer corners of the fixing frame are fixedly connected with fixing blocks, the inner parts of the plurality of fixing blocks are slidably connected with sliding blocks, a driving assembly is arranged on the adjacent side of each two fixing blocks, the inner parts of the plurality of sliding blocks are fixedly connected with a fixing shaft 1, the outer parts of the plurality of fixing shafts 1 are rotatably connected with rotating blocks, the sides of the plurality of rotating blocks close to the fixing frame are fixedly connected with pressing plates, the inner parts of the plurality of pressing plates are rotatably connected with fixed shaft 2, the inner parts of the plurality of rotating blocks are slidably connected with sliding columns, the outer parts of the plurality of sliding columns are sleeved with strong springs, the bottoms of the plurality of pressing plates are fixedly connected with buffer pads, the inner parts of the plurality of sliding blocks are provided with sliding grooves, the inner parts of the plurality of sliding grooves are slidably connected with limiting disks, the inner part of the fixing frame is slidably connected with a circuit board body, and the inner four corners of the fixing frame are provided with buffer assemblies.

[0008] Furthermore, the two driving assemblies each include a sliding plate, the exteriors of the two sliding plates are respectively slidably connected to the interiors of the plurality of fixed blocks, and the interiors of the plurality of fixed blocks are each provided with a sliding groove.

[0009] Furthermore, the plurality of buffer assemblies include sliding sleeves, the bottoms of the plurality of sliding sleeves are fixedly connected to the four inner corners of the fixed frame, the interiors of the plurality of sliding sleeves are slidably connected with sleeves, the bottoms of the plurality of sleeves are fixedly connected with limiting rings, and the interiors of the plurality of sleeves are provided with springs.

[0010] Furthermore, the bottoms of the plurality of buffer pads are in contact with the top of the circuit board body, and the outside of the pressure plate is slidably connected to the inside of the fixing block.

[0011] Furthermore, the outer portion of the second fixed shaft is fixedly connected to the inner portion of the fixed block, and the outer portion of the first fixed shaft is fixedly connected to the inner portion of the sliding block.

[0012] Furthermore, the left side of the limiting plate is fixedly connected to the right side of the sliding column, and the outside of the sliding column is slidably connected to the inside of the sliding groove.

[0013] Furthermore, one end of the strong spring is fixedly connected to the outside of the fixed frame, and the other end of the strong spring is fixedly connected to the outside of the sliding block.

[0014] Furthermore, the outer portion of the limiting ring is slidably connected to the inner portion of the sliding sleeve, and the top of the sleeve is in contact with the bottom of the circuit board body.

[0015] The utility model has the following beneficial effects:

[0016] In the utility model, through the coordinated use of structures such as the fixed block, the sliding block, the sliding groove, the sliding plate, the fixed shaft one, the rotating block, the pressure plate, the fixed shaft two, the sliding column, the strong spring, the buffer pad, the sliding sleeve, the sleeve, the limit ring, and the spring one, not only can the circuit board be quickly fixed and disassembled, the fixing efficiency of the circuit board is greatly improved, but the circuit board can also be protected, thereby improving the protection capability of the circuit board. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A three-dimensional diagram of a circuit board fixing device proposed by the utility model;

[0018] Figure 2 A schematic diagram of the internal structure of a fixing block of a fixing device for a circuit board proposed by the utility model;

[0019] Figure 3 A schematic diagram of the structure of a sliding block of a circuit board fixing device proposed by the utility model;

[0020] Figure 4 A schematic diagram of the internal structure of a sliding block of a circuit board fixing device proposed by the utility model;

[0021] Figure 5 A schematic diagram of a fixing frame structure of a circuit board fixing device proposed by the utility model;

[0022] Figure 6 The present invention is a schematic diagram of a sleeve structure of a circuit board fixing device provided by the present invention.

[0023] Legend:

[0024] 1. Fixed frame; 2. Fixed block; 3. Sliding block; 4. Slide groove; 5. Sliding plate; 6. Fixed axis 1; 7. Rotating block; 8. Pressing plate; 9. Fixed axis 2; 10. Sliding column; 11. Power spring; 12. Buffer pad; 13. Sliding groove; 14. Limiting plate; 15. Circuit board body; 16. Sliding sleeve; 17. Sleeve; 18. Limiting ring; 19. Spring 1. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] Reference Figure 1 and Figure 2 The utility model provides an embodiment: a fixing device for a circuit board, comprising a fixing frame 1, the four outer corners of the fixing frame 1 are fixedly connected with fixing blocks 2, the fixing frame 1 is designed here as a carrier of a circuit board body 15, the interiors of the plurality of fixing blocks 2 are slidably connected with sliding blocks 3, a driving assembly is arranged on the adjacent side of each two fixing blocks 2, the two driving assemblies each comprise a sliding plate 5, the exteriors of the two sliding plates 5 are respectively slidably connected to the interiors of the plurality of fixing blocks 2, the interiors of the plurality of fixing blocks 2 are provided with sliding grooves 4, the adjacent sides of the two sliding plates 5 are designed here to be fixedly connected to the distant sides of the plurality of sliding blocks 3, at this time, the sliding blocks 3 can be driven to move with the displacement of the sliding plates 5, the interiors of the plurality of sliding blocks 3 are fixedly connected with fixing shafts 6, the exteriors of the plurality of fixing shafts 6 are rotatably connected with rotating blocks 7, and the rotating blocks 7 can be rotated by means of the rotation of the fixing shaft 6;

[0027] Reference Figure 3 and Figure 4A plurality of rotating blocks 7 are fixedly connected to a pressure plate 8 on one side close to the fixed frame 1. It is designed here that the rotation of the pressure plate 8 can realize the pressing and fixing of the circuit board body 15. The interiors of the plurality of pressure plates 8 are rotatably connected to the fixed shaft 2 9. The interiors of the plurality of rotating blocks 7 are slidably connected to the sliding column 10. The exteriors of the plurality of sliding columns 10 are sleeved with a strong spring 11. It is designed here that the displacement and resetting of the sliding block 3 can be realized by the compression and rebound of the strong spring 11. The bottoms of the plurality of pressure plates 8 are fixedly connected to a buffer pad 12. The interiors of the plurality of sliding blocks 3 are provided with a sliding groove 13. The sliding groove 13 is designed here to serve as the sliding space of the sliding column 10. The interiors of the plurality of sliding grooves 13 are slidably connected to a limiting disk 14. The interior of the fixed frame 1 is slidably connected to the circuit board body 15. Buffer components are provided at the four internal corners of the fixed frame 1.

[0028] Reference Figure 1 , Figure 5 and Figure 6 , multiple buffer components all include sliding sleeves 16, the bottoms of multiple sliding sleeves 16 are fixedly connected to the four inner corners of the fixed frame 1, the interiors of multiple sliding sleeves 16 are slidably connected with sleeves 17, the bottoms of multiple sleeves 17 are fixedly connected with limiting rings 18, and the limiting rings 18 are designed here to prevent the sleeves 17 from slipping off to the outside of the sliding sleeve 16, and the interiors of multiple sleeves 17 are all provided with springs 19. The design here can protect and fix the circuit board body 15 by means of compression and rebound of the spring 19.

[0029] Reference Figure 3 - Figure 5 The bottoms of the plurality of buffer pads 12 are all in contact with the top of the circuit board body 15, the outside of the pressure plate 8 is slidably connected to the inside of the fixed block 2, and the design here can realize the fixing of the circuit board body 15 with the help of the rotation of the pressure plate 8, the outside of the fixed shaft 2 9 is fixedly connected to the inside of the fixed block 2, and the outside of the fixed shaft 1 6 is fixedly connected to the inside of the sliding block 3. The design here can realize the rotation of the sliding block 3 with the help of the fixed shaft 1 6, the left side of the limit plate 14 is fixedly connected to the right side of the sliding column 10, and the outside of the sliding column 10 is slidably connected to the sliding groove 13. Internally, the displacement of the sliding column 10 is designed here to adapt to the displacement of the sliding block 3. One end of the strong spring 11 is fixedly connected to the outside of the fixed frame 1, and the other end of the strong spring 11 is fixedly connected to the outside of the sliding block 3. The design here can adapt to the displacement and reset of the sliding block 3 with the help of the compression and rebound of the strong spring 11. The outside of the limit ring 18 is slidably connected to the inside of the sliding sleeve 16, and the top of the sleeve 17 contacts the bottom of the circuit board body 15. The limit ring 18 is designed here to prevent the sleeve 17 from slipping off to the outside of the sliding sleeve 16.

[0030] Working principle: when the circuit board body 15 needs to be fixed, the sliding plate 5 can be pushed inward, and then the sliding block 3 can be driven to move with the help of the displacement of the sliding plate 5. As the sliding block 3 is displaced, the sliding column 10 will slide inside the sliding groove 13, and the strong spring 11 will be compressed. As the sliding block 3 is displaced, the rotating block 7 will be displaced. As the rotating block 7 is displaced, the rotating block 7 will rotate with the help of the limit of the fixed shaft 1 6. As the rotating block 7 rotates, the pressure plate 8 will be driven to rotate. At this time, the rotation of the pressure plate 8 will rotate based on the fixed shaft 2 9, and at this time, the pressure plate 8 will drive one side of the buffer pad 12 to tilt. At this time, the circuit board body 15 can be placed inside the fixed frame 1 and on the top of the sleeve 17. At this time, loosening the sliding plate 5 will cause the strong spring 11 to rebound. At this time, the sliding block 3 will be reset with the help of the elastic force of the strong spring 11, and then the pressure plate 8 can be rotated and reset again. At this time, the circuit board body 15 can be pressed with the help of the buffer pad 12. At this time, the sleeve 17 will slide inside the sliding sleeve 16 with the help of the downward pressure of the buffer pad 12, and the spring 19 will generate elastic force. At this time, with the help of the elastic force of the spring 19, not only the circuit board body 15 can be further fixed, but also the circuit board body 15 can be protected.

[0031] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A circuit board fixing device, comprising a fixing frame (1), characterized in that: The four corners of the fixed frame (1) are fixedly connected to fixed blocks (2), the interiors of the plurality of fixed blocks (2) are slidably connected to sliding blocks (3), a driving assembly is provided on the adjacent side of each two fixed blocks (2), the interiors of the plurality of sliding blocks (3) are fixedly connected to fixed shafts (6), the exteriors of the plurality of fixed shafts (6) are rotatably connected to rotating blocks (7), the sides of the plurality of rotating blocks (7) close to the fixed frame (1) are fixedly connected to pressure plates (8), the interiors of the plurality of pressure plates (8) are rotatably connected to fixed shafts (6). Axis 2 (9), the interiors of the plurality of rotating blocks (7) are all slidably connected with sliding columns (10), the exteriors of the plurality of sliding columns (10) are all sleeved with strong springs (11), the bottoms of the plurality of pressure plates (8) are all fixedly connected with buffer pads (12), the interiors of the plurality of sliding blocks (3) are all provided with sliding grooves (13), the interiors of the plurality of sliding grooves (13) are all slidably connected with limit plates (14), the interior of the fixed frame (1) is slidably connected with a circuit board body (15), and the four internal corners of the fixed frame (1) are all provided with buffer components.

2. A circuit board fixing device according to claim 1, characterized in that: The two driving components each comprise a sliding plate (5), the exteriors of the two sliding plates (5) being slidably connected to the interiors of the plurality of fixed blocks (2), and the interiors of the plurality of fixed blocks (2) are each provided with a sliding groove (4).

3. A circuit board fixing device according to claim 1, characterized in that: The plurality of buffer components all comprise a sliding sleeve (16), the bottoms of the plurality of sliding sleeves (16) are all fixedly connected to the four inner corners of the fixed frame (1), the interiors of the plurality of sliding sleeves (16) are all slidably connected to sleeves (17), the bottoms of the plurality of sleeves (17) are all fixedly connected to limiting rings (18), and the interiors of the plurality of sleeves (17) are all provided with springs (19).

4. A circuit board fixing device according to claim 1, characterized in that: The bottoms of the plurality of buffer pads (12) are all in contact with the top of the circuit board body (15), and the outside of the pressing plate (8) is slidably connected to the inside of the fixing block (2).

5. A circuit board fixing device according to claim 1, characterized in that: The exterior of the second fixed shaft (9) is fixedly connected to the interior of the fixed block (2), and the exterior of the first fixed shaft (6) is fixedly connected to the interior of the sliding block (3).

6. A circuit board fixing device according to claim 1, characterized in that: The left side of the limiting plate (14) is fixedly connected to the right side of the sliding column (10), and the outside of the sliding column (10) is slidably connected to the inside of the sliding groove (13).

7. A circuit board fixing device according to claim 1, characterized in that: One end of the strong spring (11) is fixedly connected to the outside of the fixed frame (1), and the other end of the strong spring (11) is fixedly connected to the outside of the sliding block (3).

8. A circuit board fixing device according to claim 3, characterized in that: The outside of the limiting ring (18) is slidably connected to the inside of the sliding sleeve (16), and the top of the sleeve (17) is in contact with the bottom of the circuit board body (15).

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