PCB (printed circuit board) positioning structure of constant current source case

Abstract

The utility model discloses a PCB (printed circuit board) positioning structure of a constant current source case, which comprises a case and a through hole arranged on one side of the case, a positioning frame is arranged in the through hole, a plurality of PCBs are uniformly distributed in the positioning frame, positioning grooves matched with the PCBs are arranged on the positioning frame, clamping blocks are arranged at the top ends of the PCBs, and the PCBs are arranged in the clamping blocks. Tooth blocks matched with the clamping blocks are arranged in the positioning frame and connected with the case through fixing assemblies. Through the matching design of the positioning frame and the positioning groove, the PCB and the positioning frame are in matched sliding connection, and the PCB is transversely installed in the positioning frame, so that when the PCB is disassembled and assembled, the PCB can be pulled out outwards only by controlling the tooth block to be separated from the clamping block through the fixing assembly, and disassembly and assembly are convenient and rapid; the space structure is compact, the layout is reasonable, and the PCB is more convenient and rapid to disassemble and assemble, and time and labor are saved.

Description

Technical Field

[0001] The utility model relates to the technical field of constant current source chassis, in particular to a PCB board positioning structure of a constant current source chassis. Background Art

[0002] The box body of the existing constant current source chassis is generally a box-shaped structural member made of aluminum alloy sheet metal stamping and milling, which includes front and rear panels, double side wall panels, upper and lower cover plates, and partitions installed in the box. The components can usually be assembled and disassembled very conveniently, so it is easy to produce, assemble, install, debug, and use and maintain. However, the components inside the box, especially the PCB board that needs to be frequently replaced, often need to remove the panel before they can be removed. The disassembly process is cumbersome, time-consuming and labor-intensive, which brings certain difficulties to production, assembly, installation, debugging, and use and maintenance.

[0003] Currently, no effective solution has been proposed for the problems in the related technologies. Summary of the invention

[0004] In view of the problems in the related technology, the utility model proposes a PCB board positioning structure of a constant current source chassis to overcome the above technical problems existing in the existing related technology.

[0005] To this end, the specific technical solutions adopted by the utility model are as follows:

[0006] A PCB board positioning structure of a constant current source chassis comprises a chassis and a through hole on one side of the chassis, a positioning frame is arranged in the through hole, a plurality of evenly distributed PCB boards are arranged in the positioning frame, a positioning groove matching the PCB boards is arranged on the positioning frame, a clamping block is arranged at the top of the PCB board, a tooth block matching the clamping block is arranged in the positioning frame, and the tooth block is connected to the chassis through a fixing component.

[0007] Preferably, the fixing assembly comprises a moving block 1 and a moving block 2 which are symmetrically arranged in the positioning frame, and the sides of the moving block 1 and the moving block 2 which are close to each other are respectively connected to the two groups of tooth blocks in a corresponding manner.

[0008] Preferably, a tooth plate 1 and a tooth plate 2 that mesh with each other are symmetrically arranged in the chassis and above the tooth block. The tooth plate 1 and the tooth plate 2 are connected to the chassis through a rotating shaft, and connecting rods corresponding to the moving block 1 and the moving block 2 are sleeved on the two groups of the rotating shafts.

[0009] Preferably, the moving block 1 and the moving block 2 are respectively connected to the connecting rod via a movable shaft, and a torsion spring is sleeved on the rotating shaft.

[0010] Preferably, a symmetrically arranged connecting rod 1 and connecting rod 2 are provided in the chassis, and the connecting rod 1 and connecting rod 2 are respectively connected to the moving block 1, the moving block 2 and the chassis through a connecting shaft.

[0011] Preferably, a slide groove for sliding the moving block 1 and the moving block 2 is provided in the positioning frame, and one end of one of the rotating shafts extends to the outside of the chassis and is provided with a knob.

[0012] Preferably, the distance between the positioning grooves is equal to the width of the PCB board.

[0013] The beneficial effects of the utility model are as follows: through the matching design of the positioning frame and the positioning groove, the PCB board and the positioning frame are kept in a mutually matching sliding connection; since the PCB board is installed horizontally in the positioning frame, when the PCB board is disassembled and assembled, it is only necessary to separate the fixed component control tooth block from the card block, and then the PCB board can be pulled out, and the disassembly and assembly is convenient and fast; the spatial structure is compact, the layout is reasonable, and the disassembly and assembly of the PCB board is more convenient and quick, saving time and effort. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0015] Figure 1 It is a structural schematic diagram of a PCB board positioning structure of a constant current source chassis according to an embodiment of the utility model;

[0016] Figure 2 It is a structural schematic diagram of a PCB board in a PCB board positioning structure of a constant current source chassis according to an embodiment of the utility model;

[0017] Figure 3 It is a structural schematic diagram of a fixing component in a PCB board positioning structure of a constant current source chassis according to an embodiment of the utility model;

[0018] Figure 4 It is a side view of a positioning frame in a PCB board positioning structure of a constant current source chassis according to an embodiment of the utility model.

[0019] In the figure:

[0020] 1. Chassis; 2. Through hole; 3. Positioning frame; 4. PCB board; 5. Positioning slot; 6. Block; 7. Gear block; 8. Moving block 1; 9. Moving block 2; 10. Gear piece 1; 11. Gear piece 2; 12. Rotating shaft; 13. Connecting rod; 14. Movable shaft; 15. Connecting rod 1; 16. Connecting rod 2; 17. Connecting shaft; 18. Slide slot. DETAILED DESCRIPTION

[0021] To further illustrate each embodiment, the present invention provides drawings, which are part of the disclosure of the present invention and are mainly used to illustrate the embodiments. They can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, ordinary technicians in the field should be able to understand other possible implementation methods and advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are generally used to represent similar components.

[0022] According to an embodiment of the utility model, a PCB board positioning structure of a constant current source chassis is provided. Example

[0023] like Figure 1-4 As shown, the PCB board positioning structure of the constant current source chassis according to the embodiment of the utility model includes a chassis 1 and a through hole 2 provided on one side of the chassis 1, a positioning frame 3 is provided in the through hole 2, a plurality of evenly distributed PCB boards 4 are provided in the positioning frame 3, a positioning groove 5 matching the PCB board 4 is provided on the positioning frame 3, a clamping block 6 is provided at the top of the PCB board 4, a tooth block 7 matching the clamping block 6 is provided in the positioning frame 3, and the tooth block 7 is connected to the chassis 1 through a fixing component. Example

[0024] like Figure 1-4 As shown, the fixed component includes a moving block 1 8 and a moving block 2 9 which are symmetrically arranged in the positioning frame 3. The sides of the moving block 1 8 and the moving block 2 9 which are close to each other are respectively connected to the two groups of tooth blocks 7. The chassis 1 and above the tooth block 7 are symmetrically provided with mutually meshing tooth pieces 10 and tooth pieces 11. The tooth pieces 10 and the tooth pieces 11 are connected to the chassis 1 through a rotating shaft 12. The two groups of rotating shafts 12 are provided with connecting rods 13 which are correspondingly connected to the moving block 1 8 and the moving block 2 9. The moving block 1 8 and the moving block 2 9 are respectively connected to the connecting rod 13 through a movable shaft 14, and a torsion spring is provided on the rotating shaft 12. Example

[0025] like Figure 1-4As shown, the chassis 1 is provided with symmetrically arranged connecting rods 15 and 16, and the connecting rods 15 and 16 are respectively connected to the moving block 1 8, the moving block 2 9 and the chassis 1 through the connecting shaft 17, and a slide groove 18 for the moving block 1 8 and the moving block 2 9 to slide is provided in the positioning frame 3, and one end of one of the rotating shafts 12 extends to the outside of the chassis 1 and a knob is provided, and the distance between the positioning grooves 5 is equal to the width of the PCB board 4.

[0026] In order to facilitate understanding of the above technical solution of the present invention, the working principle or operation method of the present invention in the actual process is described in detail below.

[0027] When the PCB board 4 is in place, the rotating shaft 12 is rotated by rotating the knob, and the rotating shaft 12 drives the tooth piece 10 to rotate. Due to the meshing transmission of the tooth piece 10 and the tooth piece 2 11, the other rotating shaft 12 is driven to rotate, so that the two sets of rotating shafts 12 synchronously drive the connecting rod 13 to rotate, so that the connecting rod 13 pushes the moving block 1 8 and the moving block 2 9 to move in the middle direction in the sliding groove 18, so that the moving block 1 8 and the moving block 2 9 drive the tooth block 7 to contact the card block 6, thereby completing the fixation of the PCB board 4; on the contrary, when it is necessary to contact the fixed state of the PCB board 4, the rotating shaft 12 is rotated in the direction to separate the tooth block 7 from the card block 6, and the PCB board 4 can be pulled out, and the disassembly and assembly are convenient and quick.

[0028] In summary, with the aid of the above-mentioned technical scheme of the utility model, through the matching design of the positioning frame 3 and the positioning groove 5, the PCB board 4 and the positioning frame 3 are kept in a mutually matching sliding connection. Since the PCB board 4 is installed horizontally in the positioning frame 3, when disassembling and assembling the PCB board 4, it is only necessary to separate the fixed component control tooth block 7 and the clamping block 6, and then the PCB board 4 can be pulled outward, and the disassembly and assembly is convenient and quick; the spatial structure is compact, the layout is reasonable, and the disassembly and assembly of the PCB board is more convenient and quick, saving time and effort.

[0029] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. 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 PCB board positioning structure of a constant current source chassis, characterized in that: The invention comprises a chassis (1) and a through hole (2) provided on one side of the chassis (1); a positioning frame (3) is provided in the through hole (2); a plurality of evenly distributed PCB boards (4) are provided in the positioning frame (3); a positioning groove (5) matching the PCB boards (4) is provided on the positioning frame (3); a clamping block (6) is provided at the top of the PCB boards (4); a tooth block (7) matching the clamping block (6) is provided in the positioning frame (3); and the tooth block (7) is connected to the chassis (1) via a fixing component.

2. The PCB board positioning structure of a constant current source chassis according to claim 1, characterized in that: The fixing assembly comprises a moving block 1 (8) and a moving block 2 (9) which are symmetrically arranged in the positioning frame (3); the sides of the moving block 1 (8) and the moving block 2 (9) which are close to each other are respectively connected to the two groups of tooth blocks (7) in a corresponding manner.

3. The PCB board positioning structure of a constant current source chassis according to claim 2, characterized in that: A tooth piece 1 (10) and a tooth piece 2 (11) are symmetrically arranged in the chassis (1) and above the tooth block (7), and mesh with each other. The tooth piece 1 (10) and the tooth piece 2 (11) are connected to the chassis (1) via a rotating shaft (12). Connecting rods (13) corresponding to the moving block 1 (8) and the moving block 2 (9) are sleeved on the two sets of the rotating shafts (12).

4. The PCB board positioning structure of a constant current source chassis according to claim 3, characterized in that: The moving block 1 (8) and the moving block 2 (9) are respectively connected to the connecting rod (13) via a movable shaft (14), and a torsion spring is sleeved on the rotating shaft (12).

5. The PCB board positioning structure of a constant current source chassis according to claim 4, characterized in that: A symmetrically arranged connecting rod 1 (15) and a connecting rod 2 (16) are provided in the chassis (1); the connecting rod 1 (15) and the connecting rod 2 (16) are respectively connected to the moving block 1 (8), the moving block 2 (9) and the chassis (1) via a connecting shaft (17).

6. The PCB board positioning structure of a constant current source chassis according to claim 5, characterized in that: A slide groove (18) for the first moving block (8) and the second moving block (9) to slide is provided in the positioning frame (3), and one end of one of the rotating shafts (12) extends to the outside of the chassis (1) and is provided with a knob.

7. The PCB board positioning structure of a constant current source chassis according to claim 1, characterized in that: The distance between the positioning grooves (5) is equal to the width of the PCB board (4).

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