Piezoresistor fixing structure for overvoltage protection control

Abstract

The utility model discloses a piezoresistor fixing structure for overvoltage protection control, which relates to the technical field of piezoresistors and comprises a shell, a mounting plate is fixedly mounted in the shell, guide plates are equidistantly distributed at the top of the mounting plate, piezoresistor bodies are equidistantly distributed on the opposite sides of the guide plates, and the piezoresistor bodies are fixedly mounted on the shell. The two ends of the center of the bottom of the piezoresistor body are fixedly connected with conducting strips. A connecting mechanism for fixing the piezoresistor body is arranged outside the piezoresistor body. According to the piezoresistor fixing structure for overvoltage protection control, through the arrangement of the connecting mechanism, when the piezoresistor fixing structure is used, the piezoresistor body is fixed through the fixing ring, when the piezoresistor fixing structure is fixed, the fixing block can be limited through the action of the fixing pin and the spring, and when the piezoresistor fixing structure does not need to be fixed, the fixing ring can be locally lifted through the action of the limiting piece; and the situation of separation is avoided, and subsequent disassembly and assembly of the piezoresistor body are facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of varistor, in particular to a varistor fixing structure for overvoltage protection control. Background Art

[0002] The resistor material of the varistor is semiconductor, so it is a type of semiconductor resistor. The varistor is a voltage-limiting protection device. By utilizing the nonlinear characteristics of the varistor, when an overvoltage appears between the two poles of the varistor, the varistor can clamp the voltage to a relatively fixed voltage value, thereby protecting the subsequent circuit.

[0003] For example, the utility model with application number 202221701575.2 discloses a special frame for varistor. The utility model facilitates the insertion of two varistor pins of the varistor body into the positioning pin grooves aligned with each other on both sides of the partition plate, so that the two varistor pins are tightly clamped inside the connecting pin clamp. At the same time, the two positioning protrusions on the inner wall of the connecting pin clamp are buckled into the positioning hole, thereby facilitating and quickly installing and replacing the varistor body.

[0004] Similar to the above application, there are still the following deficiencies:

[0005] During use, existing varistors tend to become loose as the use time increases. In order to ensure the stability of the varistor, it is usually fixed by means of welding or other fixing methods. This method makes it impossible to disassemble and assemble the varistor according to the use requirements, so there are limitations in its use.

[0006] Therefore, in view of this, the existing structure and defects are studied and improved, and a varistor fixing structure for overvoltage protection control is proposed. Utility Model Content

[0007] The purpose of the utility model is to provide a varistor fixing structure for overvoltage protection control to solve the problems raised in the above background technology.

[0008] To achieve the above object, the utility model provides the following technical solution: a varistor fixing structure for overvoltage protection control, comprising a housing, a mounting plate fixedly installed inside the housing, guide plates equidistantly distributed on the top of the mounting plate, a varistor body equidistantly distributed on the side opposite to the guide plate, and conductive sheets fixedly connected to both ends of the bottom center of the varistor body;

[0009] A connecting mechanism for fixing the varistor body is arranged outside the varistor body;

[0010] An assembly mechanism for the varistor body to conduct electricity is arranged on one side of the bottom of the conductive sheet.

[0011] Furthermore, the connection mechanism includes a fixing ring, which is arranged outside the varistor body, and the two sides of the bottom of the fixing ring are fixedly connected with connecting rods, and the bottom of the connecting rod located on the front side is fixedly connected with a fixing block, and the two sides of the fixing block are equidistantly distributed with fixing grooves, and the fixing groove is provided with a fixing pin, and one end of the fixing pin is fixed with a spring, and the spring is arranged inside the telescopic groove. The position of the fixing block and the fixing ring can be fixed by the fixing pin, and the fixing of the varistor body is completed by the fixing ring.

[0012] Furthermore, a buckle is rotatably connected to the center of the top of the fixing ring, and a limiting plate is fixedly connected to the bottom of the connecting rod at the rear side, and the connecting rod and the limiting plate are arranged inside the limiting groove. The limiting plate can prevent the fixing ring from completely moving out of the interior of the mounting plate.

[0013] Furthermore, the inner surface of the fixing ring is in contact with the outer surface of the varistor body, and two buckles are provided, which are rotatably connected to the top center of the fixing ring. The varistor body can be fixed by the fixing ring, and the fixing ring can be easily disassembled by the buckle.

[0014] Furthermore, the assembly mechanism includes a conductive sleeve, which is arranged inside the mounting plate, and a connecting block is fixed at the bottom of the conductive sleeve, so that the conductive sheet 5 and the varistor body 4 can be electrically connected through the conductive sleeve.

[0015] Furthermore, a conductive rod is fixedly connected to one side of the connection block away from the center of the mounting plate, and an insertion head is fixedly connected to one side of the conductive rod away from the center of the mounting plate. The device can be connected to other equipment through the insertion head.

[0016] Furthermore, the insertion head is configured as a USB connector, and the outer surface of the conductive sheet fits the inner surface of the conductive sleeve. The electrical connection of the varistor body 4 can be ensured through the cooperation of the USB connector, the conductive sheet and the conductive sleeve.

[0017] The utility model provides a varistor fixing structure for overvoltage protection control, which has the following beneficial effects:

[0018] 1. The utility model is provided with a connecting mechanism. When in use, the varistor body is fixed by a fixing ring. When fixed, the fixing block can be limited by the action of the fixing pin and the spring. When fixing is not required, the fixing ring can be partially lifted by the limiting piece to avoid separation, which is convenient for the subsequent disassembly and assembly of the varistor body.

[0019] 2. The utility model realizes the energization of the varistor body through the setting of the assembly mechanism and the close fit between the conductive sleeve and the conductive sheet. At the same time, through the action of the conductive rod, the insertion head and the varistor body are electrically connected. In this way, the connection between the varistor body and other electrical equipment can be realized. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the overall three-dimensional structure of a varistor fixing structure for overvoltage protection control of the utility model;

[0021] Figure 2 This is a schematic diagram of the cross-sectional structure of a housing of a varistor fixing structure for overvoltage protection control of the utility model;

[0022] Figure 3 It is a schematic diagram of a partial top view of a housing of a varistor fixing structure for overvoltage protection control of the utility model;

[0023] Figure 4 The utility model is a schematic cross-sectional structure diagram of a shell and a mounting plate of a varistor fixing structure for overvoltage protection control.

[0024] In the figure: 1. Shell; 2. Mounting plate; 3. Guide plate; 4. Varistor body; 5. Conductive sheet; 6. Fixing ring; 7. Connecting rod; 8. Fixing block; 9. Fixing pin; 10. Spring; 11. Buckle; 12. Limiting sheet; 13. Conductive sleeve; 14. Connecting block; 15. Conductive rod; 16. Insertion head. DETAILED DESCRIPTION

[0025] The following will be combined with the attached Figures 1 to 4 The utility model is described in detail, and the technical solutions in the embodiments of the utility model are clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of 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] The utility model provides a fixing fixture for steel pipe perforation processing through improvement. Figure 1-Figure 4 As shown, it includes a shell 1, a mounting plate 2 is fixedly installed inside the shell 1, guide plates 3 are equidistantly distributed on the top of the mounting plate 2, a varistor body 4 is equidistantly distributed on the side opposite to the guide plate 3, and conductive sheets 5 are fixedly connected to both ends of the bottom center of the varistor body 4; a connecting mechanism for fixing the varistor body 4 is arranged on the outside of the varistor body 4; an assembly mechanism for the varistor body 4 to conduct electricity is arranged on one side of the bottom of the conductive sheet 5.

[0027] In this embodiment: through the action of the guide plate 3, the varistor bodies 4 can be installed in isolation, and at the same time, the conductive sheet 5 is inserted into the interior of the mounting plate 2. Through the action of the guide plate 3, the varistor bodies 4 can be prevented from being affected by each other.

[0028] In the first embodiment, since the connection between the varistor body 4 and the mounting plate 2 is relatively simple, it is easy to become loose. The specific operation is as follows:

[0029] like Figure 1 and Figure 2 as well as Figure 4 As shown, the connection mechanism includes a fixing ring 6, which is arranged outside the varistor body 4, and the two sides of the bottom of the fixing ring 6 are fixedly connected with connecting rods 7, and the bottom of the connecting rod 7 located on the front side is fixedly connected with a fixing block 8, and the two sides of the fixing block 8 are equidistantly distributed with fixing grooves, and the inside of the fixing groove is provided with a fixing pin 9, and one end of the fixing pin 9 is fixed with a spring 10, and the spring 10 is arranged inside the telescopic groove. A buckle 11 is rotatably connected at the center of the top of the fixing ring 6, and a limiting plate 12 is fixedly connected to the bottom of the connecting rod 7 located on the rear side, and the connecting rod 7 and the limiting plate 12 are arranged inside the limiting groove. The inner surface of the fixing ring 6 fits with the outer surface of the varistor body 4, and two buckles 11 are provided, and the buckles 11 are rotatably connected to the center of the top of the fixing ring 6.

[0030] In this embodiment: the fixing ring 6 is sleeved on the top of the varistor body 4, and the fixing ring 6 is pressed so that the connecting rod 7 can be inserted into the inside of the mounting plate 2. Through the action of the fixing pin 9 and the spring 10, the fixing ring 6 can be fixed in position after cooperating with the fixing block 8. When the varistor body 4 needs to be taken out, the connecting rod 7 and the fixing block 8 located at the front side can be taken out from the inside of the mounting plate 2, so that the fixing ring 6 can be partially rotated with the center of the limiting piece 12 as the center of the circle, thereby rotating the fixing ring 6;

[0031] In the previous implementation scheme, the varistor body 4 needs to be connected to other electrical equipment, and the specific operations are as follows:

[0032] like Figure 3 and Figure 4 As shown, the assembly mechanism includes a conductive sleeve 13, which is arranged inside the mounting plate 2, and a connecting block 14 is fixed to the bottom of the conductive sleeve 13. A conductive rod 15 is fixedly connected to the side of the connecting block 14 away from the center of the mounting plate 2, and an insertion head 16 is fixedly connected to the side of the conductive rod 15 away from the center of the mounting plate 2. The insertion head 16 is set as a USB connector, and the outer surface of the conductive sheet 5 fits the inner surface of the conductive sleeve 13.

[0033] In this embodiment: the connecting block 14 and the insertion head 16 can be electrically connected through the conductive rod 15, and the varistor body 4 and the conductive sleeve 13 are connected through the conductive sheet 5. Through the action of the insertion head 16, the connection between other electrical appliances is realized.

[0034] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A varistor fixing structure for overvoltage protection control, characterized in that: The invention comprises a housing (1), a mounting plate (2) being fixedly mounted inside the housing (1), guide plates (3) being evenly spaced on the top of the mounting plate (2), a varistor body (4) being evenly spaced on the side opposite to the guide plate (3), and conductive sheets (5) being fixedly connected to both ends of the bottom center of the varistor body (4); A connecting mechanism for fixing the varistor body (4) is arranged outside the varistor body (4); An assembly mechanism for the varistor body (4) to conduct electricity is provided on one side of the bottom of the conductive sheet (5).

2. The varistor fixing structure for overvoltage protection control according to claim 1, characterized in that: The connection mechanism comprises a fixing ring (6), the fixing ring (6) is arranged outside the varistor body (4), both sides of the bottom of the fixing ring (6) are fixedly connected with connecting rods (7), the bottom of the connecting rod (7) located on the front side is fixedly connected with a fixing block (8), both sides of the fixing block (8) are equidistantly distributed with fixing grooves, a fixing pin (9) is arranged inside the fixing groove, one end of the fixing pin (9) is fixed with a spring (10), and the spring (10) is arranged inside the telescopic groove.

3. The varistor fixing structure for overvoltage protection control according to claim 2, characterized in that: A buckle (11) is rotatably connected to the center of the top of the fixing ring (6), and a limiting plate (12) is fixedly connected to the bottom of the connecting rod (7) located at the rear side. The connecting rod (7) and the limiting plate (12) are arranged inside the limiting groove.

4. The varistor fixing structure for overvoltage protection control according to claim 3, characterized in that: The inner surface of the fixing ring (6) is in contact with the outer surface of the varistor body (4), and two ring buckles (11) are provided. The ring buckles (11) are rotatably connected to the top center of the fixing ring (6).

5. The varistor fixing structure for overvoltage protection control according to claim 1, characterized in that: The assembly mechanism comprises a conductive sleeve (13), the conductive sleeve (13) is arranged inside the mounting plate (2), and a connecting block (14) is fixed to the bottom of the conductive sleeve (13).

6. The varistor fixing structure for overvoltage protection control according to claim 5, characterized in that: A conductive rod (15) is fixedly connected to one side of the connection block (14) away from the center of the mounting plate (2), and an insertion head (16) is fixedly connected to one side of the conductive rod (15) away from the center of the mounting plate (2).

7. The varistor fixing structure for overvoltage protection control according to claim 6, characterized in that: The insertion head (16) is configured as a USB connector, and the outer surface of the conductive sheet (5) is in contact with the inner surface of the conductive sleeve (13).

Images