Fixing structure of PCB (printed circuit board)

Abstract

The utility model relates to the technical field of circuit boards, and discloses a fixing structure of a PCB (printed circuit board), which comprises a board body and a frame, the frame is a rectangular frame, the middle positions of four edges of the frame are provided with annular grooves, the bottoms of the inner side walls of the annular grooves of the four edges of the frame are fixedly provided with bottom plates, the board body is arranged between the frames, and the bottom plates are arranged in the annular grooves of the four edges of the frame. The bottom of the plate body is attached to the tops of the four bottom plates, through holes are formed in the centers of the edges of the four edges of the top of the plate body, first screw holes aligned with the corresponding through holes are formed in the four bottom plates, lantern rings are rotationally connected into the four annular grooves in a sleeved mode, top plates are fixedly installed on the outer walls of the four lantern rings, and the top plates are fixedly installed on the outer walls of the four lantern rings. The four top plates are turned to abut against the top of the plate body, second screw holes aligned with the corresponding through holes are formed in the four top plates, the plate body can be fixedly installed between the frames through the bottom plates and the turnover top plates on the frames, and then the positions of the supporting columns at the four corners of the frames are fixed.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of circuit board, concretely is a kind of fixing structure of PCB circuit board. BACKGROUND

[0002] PCB Chinese name is printed circuit board, also called printed wiring board, is important electronic component, is the support body of electronic component, is the carrier of electronic component electrical connection, PCB circuit board needs to be fixed installation to its position when using, usually installation mode is more directly fixed by bolt, such mode is prone to cause certain damage to the connecting place of PCB circuit board in the process of installation, and after PCB circuit board is installed, the back of plate body is shielded to cause the heat dissipation effect of its back to greatly reduce, even the heat of back cannot be dissipated, in order to solve the problems caused by this installation mode, the application proposes a kind of fixing structure of PCB circuit board. SUMMARY

[0003] To solve the problems in the above background art, the utility model provides the following technical scheme: a kind of fixing structure of PCB circuit board, including plate body and frame, frame is set to rectangular frame, ring groove is set in the middle position of four edges of frame, and bottom plate is fixedly installed in the inner wall bottom of ring groove of four edges of frame, plate body is located between frame, and the bottom of plate body is attached to the top of four bottom plates, the edge center of plate body top four edges is all set with through hole, first screw hole is set in four bottom plates and is aligned with corresponding through hole, four ring grooves are all rotatably sleeved with collar, top plate is fixedly installed on the outer wall of four collars, four top plates are respectively reversed and abut on the top of plate body, and second screw hole is set in four top plates and is aligned with corresponding through hole, bolt is threadedly inserted between position-aligned second screw hole, through hole and first screw hole.

[0004] Further, four corners of the outer side of frame are fixedly installed with support column, the height of four support columns is three times of the thickness of frame, and the top of four support columns is flush with the top of frame.

[0005] Further, the bottom of four corners of the inner side of frame is fixedly installed with support plate, and four support plates are respectively located below four corners of plate body.

[0006] Further, the top of four support plates is flush with the top of four bottom plates on the same horizontal plane.

[0007] Further, when top plate and corresponding bottom plate are in parallel state, the top of four top plates is flush with the top of frame.

[0008] Further, the top of four support columns is provided with up-and-down through hole.

[0009] Compared with the prior art, the beneficial effects of this utility model are:

[0010] By placing the plate on the four base plates and support plates between the frames, and then rotating the collar at the annular groove, the top plate presses against the top of the plate. Finally, bolts are used to thread through the second screw hole, the through hole, and the first screw hole in sequence. This way, the plate can be fixedly installed between the frames. Then, the support columns at the four corners of the frame can be fixed in position. Attached Figure Description

[0011] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0013] Figure 2 This is a schematic diagram of the structure of the frame of this utility model;

[0014] Figure 3 This is a schematic diagram of the structure of the plate body of this utility model;

[0015] Figure 4 This is a top view of the frame of this utility model.

[0016] Figure 5 This is a schematic diagram of the connection between the base plate, top plate, and frame of this utility model;

[0017] Figure 6 This is a cross-sectional structural diagram of the connection between the base plate, top plate, and frame of this utility model;

[0018] In the diagram: 1. Plate; 2. Through hole; 3. Frame; 4. Annular groove; 5. Base plate; 6. Collar; 7. Top plate; 8. Bolt; 9. Support plate; 10. Support column; 11. First screw hole; 12. Second screw hole. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0020] Depend on Figures 1-6The present invention includes a plate 1 and a frame 3. The frame 3 is a rectangular frame, and annular grooves 4 are formed at the middle of each of the four sides of the frame 3. Base plates 5 are fixedly installed on the bottom of the inner sidewalls of the annular grooves 4 on each of the four sides of the frame 3. The plate 1 is located between the frames 3, and the bottom of the plate 1 is attached to the top of the four base plates 5. Through holes 2 are formed at the center of the edges of the four sides of the top of the plate 1. First screw holes 11 aligned with the corresponding through holes 2 are formed on each of the four base plates 5. Collars 6 are rotatably fitted in each of the four annular grooves 4. Each of the four top plates 7 is fixedly installed. The four top plates 7 are flipped up to abut the top of the plate body 1. Each of the four top plates 7 has a second screw hole 12 that is aligned with the corresponding through hole 2. Bolts 8 are threaded into the aligned second screw hole 12, through hole 2 and first screw hole 11. When the plate body 1 is placed on the bottom plate 5 and support plate 9 between the frame 3, the collar 6 at the annular groove 4 is flipped to make the top plate 7 flip up to fit against the top of the plate body 1. Then the bolts 8 are threaded through the second screw hole 12, through hole 2 and first screw hole 11 in sequence.

[0021] like Figure 2 As shown, support columns 10 are fixedly installed at the four corners of the outer side of the frame 3. The height of the four support columns 10 is three times the thickness of the frame 3, and the top of the four support columns 10 is flush with the top of the frame 3. In this way, after the positions of the four support columns 10 are fixed, the heat generated by the electronic components on the board 1 during operation can be smoothly discharged from the front and back of the board 1.

[0022] like Figure 1 and Figure 2 As shown, support plates 9 are fixedly installed at the bottom of the four corners inside the frame 3. The four support plates 9 are located below the four corners of the plate 1, and the four support plates 9 can further support the plate 1.

[0023] like Figure 1 and Figure 2 As shown, the tops of the four support plates 9 and the tops of the four base plates 5 are all located on the same horizontal plane, so that the bottom of the plate 1 can be in contact with the tops of the support plates 9 and the tops of the base plates 5 at the same time. In this way, the plate 1 can be in a stable horizontal state when it is located on the support plates 9 and the base plates 5.

[0024] like Figure 1 and Figure 5 As shown, when the top plate 7 and the corresponding bottom plate 5 are in a parallel state, the top of the four top plates 7 are flush with the top of the frame 3.

[0025] like Figure 1 and Figure 2 As shown, each of the four support columns 10 has a through-hole at the top, which facilitates the installation and fixing of the support column 10.

[0026] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0027] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A fixing structure for a PCB circuit board, comprising a board body (1) and a frame (3), characterized in that: The frame (3) is a rectangular frame, with annular grooves (4) at the middle of each of the four sides of the frame (3), and base plates (5) are fixedly installed on the bottom of the inner sidewalls of the annular grooves (4) on each of the four sides of the frame (3). The plate (1) is located between the frames (3), and the bottom of the plate (1) is attached to the top of the four base plates (5). Through holes (2) are opened at the center of the edges of the four sides of the top of the plate (1), and first screw holes (11) aligned with the corresponding through holes (2) are opened on each of the four base plates (5). A collar (6) is rotatably fitted in each of the four annular grooves (4). Each collar (6) has a top plate (7) fixedly installed on its outer wall. The four top plates (7) are flipped up to abut against the top of the plate (1). Each of the four top plates (7) has a second screw hole (12) aligned with the corresponding through hole (2). Bolts (8) are threaded between the aligned second screw hole (12), through hole (2) and first screw hole (11). Support columns (10) are fixedly installed at the four corners of the outer side of the frame (3). The height of the four support columns (10) is three times the thickness of the frame (3), and the top of the four support columns (10) is flush with the top of the frame (3).

2. The PCB circuit board fixing structure according to claim 1, characterized in that: Support plates (9) are fixedly installed at the bottom of the four corners inside the frame (3), and the four support plates (9) are located below the four corners of the plate (1).

3. The PCB circuit board fixing structure according to claim 2, characterized in that: The tops of the four support plates (9) and the tops of the four base plates (5) are all located on the same horizontal plane.

4. The fixing structure for a PCB circuit board according to claim 1, characterized in that: When the top plate (7) and the corresponding bottom plate (5) are in a parallel state, the top of the four top plates (7) is flush with the top of the frame (3).

5. The fixing structure for a PCB circuit board according to claim 1, characterized in that: The top of each of the four support columns (10) is provided with a through opening.

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