Protection measurement and control device

Abstract

The utility model discloses a protection measurement and control device, which comprises a panel and a shell, and a plurality of groups of clamping pieces are correspondingly arranged on the left side and the right side in the shell respectively; the clamping piece comprises an upper clamping piece and a lower clamping piece; the upper clamping piece comprises a main clamping elastic piece, a long-strip-shaped clamping opening is formed in the main clamping elastic piece, an auxiliary clamping elastic piece is arranged on the clamping opening, and the two ends of the auxiliary clamping elastic piece are connected with the main clamping elastic piece. The clamping piece is simple in structure, circuit boards with different thicknesses and weights can be clamped and fixed through the combined action of the main clamping elastic piece and the auxiliary clamping elastic piece of the clamping piece, and the clamping piece is wide in application range of the thickness and the weight of the circuit boards; meanwhile, when the clamping piece is used for clamping the circuit board with small thickness and weight, the clamping force can be increased, and the circuit board can be conveniently clamped; when the clamping piece is used for clamping the circuit board with large thickness and weight, the clamping force can be reduced while the clamping effect is ensured, and the circuit board is convenient to disassemble.

Description

Technical Field

[0001] The utility model relates to the technical field of electric power equipment products, in particular to a protection measurement and control device. Background Art

[0002] The protection and measurement control device is composed of high-integration, bus-free chip microcomputer, high-precision current and voltage transformer, high-insulation strength outlet intermediate relay, high-reliability switching power supply module and other components. It is an economical protection device integrating measurement, control, protection and communication.

[0003] The current protection, measurement and control device has a plurality of fixing strips on the inner wall of the shell, and a fixing slot for inserting and fixing each circuit board is formed between two adjacent fixing strips. Circuit boards with different functions can be inserted into the fixing slots and connected together through a connecting plate provided in the protection, measurement and control device, so as to facilitate the installation of different circuit boards in the protection, measurement and control device. However, since the size of the fixing slot is fixed, the clamping size of the fixing slot cannot adaptively adjust the clamping force according to the weight of the circuit board; when the width of the fixing slot is relatively small relative to the circuit board, it is more difficult to insert the circuit board. Even if the circuit board can be forcibly inserted and installed, it will be difficult to remove the circuit board; when the width of the fixing slot is relatively large relative to the circuit board, after the circuit board is inserted into the fixing slot, the fixing strip cannot support the circuit board well, the circuit board cannot be effectively fixed, and the connection end of the circuit board will be subjected to greater stress, which will easily damage the circuit board over time. Therefore, it is necessary to propose a protection, measurement and control device that can adjust the clamping force according to the weight of the circuit board. Summary of the invention

[0004] In view of the above-mentioned deficiencies in the prior art, the utility model provides a protection measurement and control device which can automatically adjust the clamping force according to the weight of the circuit board.

[0005] In order to achieve the above-mentioned purpose of the invention, the technical solution adopted by the utility model is: it includes a panel and a box-shaped shell, the front side of the shell is provided with an opening, the panel is installed on the opening, and a plurality of groups of clamping parts are respectively provided on the left and right sides of the interior of the shell; the clamping parts include an upper clamping part and a lower clamping part of the same structure, the upper clamping part and the lower clamping part are symmetrically arranged, and the upper clamping part and the lower clamping part form a clamping groove; the upper clamping part includes a main clamping spring piece, the main clamping spring piece is provided with a long strip of clamping opening, the clamping opening is provided with a secondary clamping spring piece, and the two ends of the secondary clamping spring piece are connected to the main clamping spring piece.

[0006] Furthermore, a left fixing tube and a right fixing tube are respectively fixed to both ends of the main clamping spring piece, and the main clamping spring piece is fixed to the outer shell through the left fixing tube and the right fixing tube, and the outer shell is provided with fixing pins or screws for installing the left fixing tube and the right fixing tube.

[0007] Furthermore, the auxiliary clamping spring is corrugated in the length direction.

[0008] Furthermore, the main clamping spring piece and the auxiliary clamping spring piece are designed as one piece.

[0009] Furthermore, two sides of the auxiliary clamping spring piece are gap-matched with the clamping opening.

[0010] Furthermore, the upper and lower surfaces of the main clamping spring piece and the auxiliary clamping spring piece are both provided with a silicone layer or a rubber layer.

[0011] Furthermore, the outer surfaces of the main clamping spring piece and the auxiliary clamping spring piece are provided with an insulating paint layer.

[0012] Furthermore, in a normal state, the main clamping spring piece and the auxiliary clamping spring piece protrude toward the clamping side.

[0013] The beneficial effects of the utility model are:

[0014] The clamping member of the utility model comprises an upper clamping member and a lower clamping member, the upper clamping member and the lower clamping member form a clamping groove for clamping the circuit board, and the two groups of correspondingly arranged clamping members are used to clamp and fix the circuit board; the clamping member comprises a main clamping spring piece and an auxiliary clamping spring piece, the main clamping spring piece and the auxiliary clamping spring piece are designed as an integrated whole, and in normal state, the main clamping spring piece and the auxiliary clamping spring piece protrude toward the clamping side together, thereby clamping the circuit board.

[0015] When the utility model clamps a circuit board of light weight, the main clamping spring piece and the auxiliary clamping spring piece bulge toward the clamping side together, and the elastic forces generated by the main clamping spring piece and the auxiliary clamping spring piece are superimposed to clamp the circuit board, thereby better clamping and fixing the circuit board of light weight; when clamping a circuit board of heavy weight, the main clamping spring piece bulges toward the clamping side, and the auxiliary clamping spring piece is greatly affected by the gravity of the circuit board, and the auxiliary clamping spring piece is in a horizontal direction or bulges away from the clamping direction. At this time, only the main clamping spring piece plays a clamping and fixing role on the circuit board, so when fixing the circuit board of heavy weight, the clamping effect of the main clamping spring piece and the auxiliary clamping spring piece on the circuit board is appropriately reduced, thereby protecting the circuit board, and while fixing the circuit board, it is also convenient to disassemble the circuit board.

[0016] The clamping piece of the utility model has a simple structure. Through the joint action of the main clamping spring piece and the auxiliary clamping spring piece of the clamping piece, circuit boards of different thicknesses and different weights can be clamped and fixed. The clamping piece has a wide range of application for the thickness and weight of the circuit boards. At the same time, when the clamping piece clamps a circuit board with a smaller thickness and weight, the clamping piece can increase the clamping force to ensure the clamping effect, thereby facilitating the clamping of the circuit board. When the clamping piece clamps a circuit board with a larger thickness and weight, the clamping force can be reduced while ensuring the clamping effect, thereby facilitating the disassembly of the circuit board. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1This is a schematic diagram of the appearance structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the utility model with the panel removed;

[0019] Figure 3 Schematic diagram of the external structure of the clamping member;

[0020] Figure 4 Schematic diagram of the clamping part Figure 1 ;

[0021] Figure 5 Schematic diagram of the clamping part Figure 2 ;

[0022] Figure 6 Schematic diagram of the clamping part Figure 3 ;

[0023] The symbols of the components are as follows:

[0024] 1. Panel; 2. Shell; 3. Clamping piece; 31. Upper clamping piece; 311. Main clamping spring; 312. Clamping mouth; 313. Auxiliary clamping spring; 314. Left fixing tube; 315. Right fixing tube; 32. Lower clamping piece; 4. Fixing pin. DETAILED DESCRIPTION

[0025] The specific implementation methods of the utility model are described below to facilitate technical personnel in this technical field to understand the utility model, but it should be clear that the utility model is not limited to the scope of the specific implementation methods. For ordinary technical personnel in this technical field, as long as various changes are within the spirit and scope of the utility model defined and determined by the attached claims, these changes are obvious, and all utility model creations using the concept of the utility model are protected.

[0026] like Figure 1 and 2 As shown, the protection measurement and control device includes a panel 1 and a box-shaped shell 2, the front side of the shell 2 is provided with an opening, the panel 1 is installed on the opening, and the left and right sides of the inside of the shell 2 are respectively provided with a plurality of groups of clamping members 3. The clamping members 3 include an upper clamping member 31 and a lower clamping member 32 of the same structure, the upper clamping member 31 and the lower clamping member 32 are symmetrically arranged, the upper clamping member 31 and the lower clamping member 32 form a clamping through groove, and the two groups of correspondingly arranged clamping members 3 are used to clamp and fix the circuit board.

[0027] like Figure 3As shown, the upper clamping member 31 includes a main clamping spring 311, a strip-shaped clamping opening 312 is provided on the main clamping spring 311, a secondary clamping spring 313 is provided on the clamping opening 312, and both ends of the secondary clamping spring 313 are connected to the main clamping spring 311. In normal state, the main clamping spring 311 and the secondary clamping spring 313 protrude toward the clamping side together, thereby clamping the circuit board.

[0028] When the clamping member 3 clamps a circuit board of lighter weight, the main clamping spring piece 311 and the auxiliary clamping spring piece 312 bulge toward the clamping side together, and the elastic forces generated by the main clamping spring piece 311 and the auxiliary clamping spring piece 312 are superimposed to clamp the circuit board, thereby better clamping and fixing the circuit board of lighter weight; when clamping a circuit board of heavier weight, the main clamping spring piece 311 bulges toward the clamping side, and the auxiliary clamping spring piece 312 is greatly affected by the gravity of the circuit board, and the auxiliary clamping spring piece 312 is in a horizontal position or bulges away from the clamping direction. At this time, only the main clamping spring piece 311 has a clamping and fixing effect on the circuit board, so when fixing the circuit board of heavier weight, the clamping effect of the main clamping spring piece 311 and the auxiliary clamping spring piece 312 on the circuit board is appropriately reduced, thereby protecting the circuit board. While fixing the circuit board, it is also convenient to disassemble the circuit board.

[0029] The clamping member 3 has a simple structure. Through the joint action of the main clamping spring piece 311 and the auxiliary clamping spring piece 322 of the clamping member 3, circuit boards of different thicknesses and weights can be clamped and fixed. The clamping member 3 has a wide range of applicability to the thickness and weight of the circuit boards. At the same time, when the clamping member 3 clamps a circuit board of smaller thickness and weight, the clamping force can be increased to ensure the clamping effect, thereby facilitating the clamping of the circuit board. When the clamping member 3 clamps a circuit board of larger thickness and weight, the clamping force can be reduced while ensuring the clamping effect, thereby facilitating the disassembly of the circuit board.

[0030] In this embodiment, a left fixing tube 314 and a right fixing tube 315 are respectively fixed to the two ends of the main clamping spring piece 311, and the main clamping spring piece 311 is fixed to the outer shell 2 through the left fixing tube 314 and the right fixing tube 315. The outer shell 2 is provided with a fixing pin 4 or a screw for installing the left fixing tube 314 and the right fixing tube 315.

[0031] In this embodiment, the auxiliary clamping spring piece 313 is corrugated in the length direction. The main clamping spring piece 311 and the auxiliary clamping spring piece 313 are formed by integral stamping, and the auxiliary clamping spring piece 313 is subsequently stamped into a corrugated shape along the differential direction by stamping. After the main clamping spring piece 311 is compressed, the corrugated auxiliary clamping spring piece 313 can change its position to the side away from the clamping direction, thereby using the change in the bending direction of the auxiliary clamping spring piece 313 to change the clamping force direction of the main clamping spring piece 311 and the auxiliary clamping spring piece 313, so that the main clamping spring piece 311 and the auxiliary clamping spring piece 313 can adaptively change the superimposed clamping force effect of the main clamping spring piece 311 and the auxiliary clamping spring piece 313 according to the thickness and weight of the circuit board, thereby better adaptive clamping of the circuit board.

[0032] In this embodiment, the main clamping spring piece 311 and the auxiliary clamping spring piece 313 are designed as one body. The main clamping spring piece 311 and the auxiliary clamping spring piece 313 are integrally formed by stamping, so that the manufacturing of the clamping part is more convenient and efficient.

[0033] In this embodiment, two sides of the auxiliary clamping spring piece 313 are clearance-matched with the clamping opening 312. When the auxiliary clamping spring piece 313 changes its convex direction and moves, the auxiliary clamping spring piece 313 moves more smoothly.

[0034] In this embodiment, a silicone layer or a rubber layer is provided on the upper and lower surfaces of the main clamping spring piece 311 and the auxiliary clamping spring piece 313. The silicone layer or the rubber layer can increase the clamping force between the clamping piece and the circuit board, thereby better clamping the circuit board, and anti-slip patterns or bumps can also be provided on the silicone layer or the rubber layer to further increase the friction between the clamping piece and the circuit board.

[0035] In this embodiment, an insulating paint layer is provided on the outer surface of the main clamping spring 311 and the auxiliary clamping spring 313. The circuit board generally has exposed component pins, and the insulating paint layer can effectively insulate the clamping parts, prevent the circuit board from creeping or short circuit, and ensure the normal operation of the circuit board.

[0036] Working process and principle: When in use, slide the circuit board along the two sets of clamping slots, and the upper clamping member 31 and the lower clamping member 32 of the clamping member 3 adaptively clamp the circuit board according to its weight and thickness. In the clamping conditions where the weight and thickness of the circuit board increase in sequence, the following processes correspond respectively: Figure 4 As shown, at this time, the main clamping spring 311 and the auxiliary clamping spring 313 are both convex to the clamping side, and the clamping force generated by the main clamping spring 311 and the auxiliary clamping spring 313 is superimposed to clamp the circuit board, which is suitable for clamping circuit boards with small thickness and weight; Figure 5As shown, at this time, the main clamping spring 311 protrudes toward the clamping side, and the auxiliary clamping spring 313 is horizontal. At this time, only the clamping force generated by the main clamping spring 311 clamps the circuit board. At this time, the clamping force becomes smaller, which is suitable for clamping circuit boards with large thickness and weight; Figure 6 As shown, the main clamping spring 311 is in a horizontal position, and the auxiliary clamping spring 313 protrudes to the side away from the clamping direction. At this time, only the clamping force generated by the main clamping spring 311 clamps the circuit board, and even under the action of the directional superposition force of the auxiliary clamping spring 313, the clamping force of the main clamping spring 311 on the circuit board is smaller, but the clamping force in this state can still firmly clamp the circuit board, but the clamping force on the circuit board will not be too large, there will be no stress on the connection end of the circuit board, and the circuit board will not be damaged.

Claims

1. A protection measurement and control device, characterized in that: It comprises a panel (1) and a box-shaped shell (2), the front side of the shell (2) is provided with an opening, the panel (1) is mounted on the opening, and the left and right sides of the inside of the shell (2) are respectively provided with a plurality of groups of clamping members (3); The clamping member (3) comprises an upper clamping member (31) and a lower clamping member (32) of the same structure, the upper clamping member (31) and the lower clamping member (32) are symmetrically arranged, and the upper clamping member (31) and the lower clamping member (32) form a clamping through groove; The upper clamping member (31) comprises a main clamping spring piece (311), the main clamping spring piece (311) is provided with a long strip-shaped clamping opening (312), the clamping opening (312) is provided with a secondary clamping spring piece (313), and both ends of the secondary clamping spring piece (313) are connected to the main clamping spring piece (311).

2. The protection measurement and control device according to claim 1, characterized in that: A left fixing tube (314) and a right fixing tube (315) are fixed to the two ends of the main clamping spring piece (311), respectively. The main clamping spring piece (311) is fixed to the housing (2) via the left fixing tube (314) and the right fixing tube (315). The housing (2) is provided with a fixing pin (4) or a screw for installing the left fixing tube (314) and the right fixing tube (315).

3. The protection measurement and control device according to claim 1, characterized in that: The auxiliary clamping spring sheet (313) is corrugated in the length direction.

4. The protection measurement and control device according to claim 1, characterized in that: The main clamping spring piece (311) and the auxiliary clamping spring piece (313) are designed as one piece.

5. The protection measurement and control device according to claim 1, characterized in that: Both sides of the auxiliary clamping spring sheet (313) are clearance-matched with the clamping opening (312).

6. The protection measurement and control device according to claim 1, characterized in that: The upper and lower surfaces of the main clamping spring piece (311) and the auxiliary clamping spring piece (313) are both provided with a silicone layer or a rubber layer.

7. The protection measurement and control device according to claim 1, characterized in that: The outer surfaces of the main clamping spring piece (311) and the auxiliary clamping spring piece (313) are provided with an insulating paint layer.

8. The protection measurement and control device according to claim 1, characterized in that: In a normal state, the main clamping spring sheet (311) and the auxiliary clamping spring sheet (313) protrude toward the clamping side.

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