Overvoltage and undervoltage protection device

Abstract

The utility model relates to the technical field of over-voltage and under-voltage protection, and discloses an over-voltage and under-voltage protection device which comprises an over-voltage and under-voltage protection device body, the top and the bottom of the over-voltage and under-voltage protection device body are respectively provided with a wiring jack, and the front surface of the over-voltage and under-voltage protection device body is provided with a wiring tightening screw corresponding to the wiring jack. According to the over-voltage and under-voltage protection device, the adjusting mounting plate can slide left and right in the adjusting mounting opening through the sliding blocks, and the position of the adjusting mounting plate in the adjusting mounting opening is conveniently positioned and fixed through the first fixing hole, the second fixing hole and the third fixing hole; the whole device is fixedly installed on the DIN guide rail of the distribution box through the DIN guide rail groove in the first installation form. When the device cannot be fixed due to deformation of the DIN guide rail of the distribution box, the DIN guide rail is sleeved with the DIN guide rail groove through the second installation form, and the third fixing hole exposed on the outer side is fixed to the distribution box through the fixing screw to complete installation.

Description

Technical Field

[0001] The utility model relates to the technical field of overvoltage and undervoltage protection, in particular to an overvoltage and undervoltage protection device. Background Art

[0002] An overvoltage and undervoltage protection device is a device used to protect power equipment and electrical systems. It can monitor voltage fluctuations and take measures when the voltage exceeds or falls below a safe range. Its function is to prevent equipment from being damaged due to voltage anomalies and ensure the safe operation of electrical systems. For example, CN217881213U disclosed on the Chinese patent website is an overvoltage and undervoltage protector, which includes a housing, a static contact piece located in the housing, and a moving contact piece facing the static contact piece. A sliding piece is also slidably arranged in the housing, and the moving contact piece is arranged on the sliding piece. A buffer spring for making the buffer column contact the moving contact piece is sleeved on the buffer column, and the buffer spring is retracted along the sliding direction of the buffer column. It can effectively reduce the impact force between the moving contact and the static contact when they come into contact, alleviate the wear of the static contact and the moving contact caused by excessive impact force, and have a buffering effect on the moving contact and the static contact, thereby extending the service life of the moving contact and the static contact. However, such protection devices are fixedly installed inside the distribution box. If the DIN rail is deformed or the installation position is insufficient, it will affect the installation and fixation of the equipment. Therefore, an overvoltage and undervoltage protection device is proposed. Utility Model Content

[0003] In view of the shortcomings of the prior art, the utility model provides an overvoltage and undervoltage protection device, which has different installation and fixing methods and can flexibly adjust the installation method according to different situations. It solves the problem of affecting the installation and fixation of the equipment when the DIN rail inside the distribution box is deformed or the installation space is insufficient.

[0004] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: an overvoltage and undervoltage protection device, comprising an overvoltage and undervoltage protection device body, the top and bottom of the overvoltage and undervoltage protection device body are provided with wiring sockets, and the connected wires are inserted through the wiring sockets, and the front of the overvoltage and undervoltage protection device body is provided with wiring tightening screws at the corresponding wiring sockets, and the wires in the corresponding wiring sockets are fixed or loosened by the wiring tightening screws, and a display screen is provided in the middle of the front of the overvoltage and undervoltage protection device body, and the use of the device is observed through the display screen, and the bottom of the display screen is provided with a display screen. An adjustment button is provided, and the device is adjusted and controlled by the adjustment button. An adjustment installation port is provided on the back of the overvoltage and undervoltage protection device body, and sliding grooves are provided at the top and bottom of the adjustment installation port. A No. 1 fixing hole is provided in the upper half of the adjustment installation port, and a No. 2 fixing hole is provided in the lower half of the adjustment installation port. Two adjustment installation plates are plugged into the inside of the adjustment installation port, and DIN guide rail grooves are provided on the outer sides of the two adjustment installation plates. The entire device can be fixedly installed on the DIN guide rail of the distribution box through the DIN guide rail grooves of the two adjustment installation plates.

[0005] Preferably, the two adjustment mounting plates are provided with No. 3 fixing holes at positions corresponding to the No. 1 fixing holes and the No. 2 fixing holes, and the No. 1 fixing holes, the No. 2 fixing holes and the No. 3 fixing holes are used to locate and fix the position of the adjustment mounting plate at the adjustment mounting port.

[0006] Preferably, sliding blocks are provided on the top and bottom of the two adjustment mounting plates, and the sliding blocks are inserted into the sliding grooves and can move left and right. The adjustment mounting plates can slide left and right inside the adjustment mounting openings through the sliding blocks.

[0007] Preferably, fixing screws are provided in the No. 3 fixing holes of the adjusting mounting plate. Under normal installation conditions, the fixing screws in the No. 3 fixing holes are fixedly connected with the No. 1 fixing holes and the No. 2 fixing holes to complete installation form one. The entire device is fixedly installed on the DIN rail of the distribution box through the DIN rail grooves of the two adjusting mounting plates of installation form one.

[0008] Preferably, when the overvoltage and undervoltage protection device body is installed abnormally, the two adjustment mounting plates are moved to both sides, and the two inner No. 3 fixing holes are aligned with the No. 1 fixing holes and the No. 2 fixing holes and fixed with fixing screws to complete installation form two. Through installation form two, the DIN rail groove is put on the DIN rail, and the No. 3 fixing holes exposed on the outside are fixed on the electrical box with fixing screws to complete the installation.

[0009] Compared with the prior art, the utility model provides an overvoltage and undervoltage protection device having the following features:

[0010] Beneficial effects:

[0011] 1. The overvoltage and undervoltage protection device can slide the adjustment mounting plate left and right inside the adjustment mounting port through the sliding block and the sliding block, and the adjustment mounting plate can be positioned and fixed at the adjustment mounting port through the No. 1 fixing hole, the No. 2 fixing hole and the No. 3 fixing hole. The entire device is fixed on the DIN rail of the distribution box through the DIN rail grooves of the two adjustment mounting plates of the installation form one. When the DIN rail of the distribution box is deformed and the device cannot be fixed, the DIN rail groove is placed on the DIN rail through the installation form two, and the No. 3 fixing hole exposed on the outside is fixed to the electric box with fixing screws to complete the installation. The device has different installation and fixing methods, and the installation method can be flexibly adjusted according to different situations.

[0012] 2. The overvoltage and undervoltage protection device uses the No. 1 fixing hole, the No. 2 fixing hole and the No. 3 fixing hole to locate and fix the adjustment mounting plate at the adjustment mounting port. When the DIN rail mounting position of the distribution box is insufficient or damaged, the entire device can be fixed at other positions that meet the use conditions through installation form 2. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a structural diagram of the first installation form of the utility model;

[0014] Figure 2 This is a schematic diagram of the second installation form of the utility model;

[0015] Figure 3 It is a front view of the structure of the utility model.

[0016] Among them: 1. Overvoltage and undervoltage protection device body; 2. Wiring socket; 3. Wiring tightening screw; 4. Display screen; 5. Adjustment button; 6. Adjustment mounting port; 7. Sliding slot; 8. No. 1 fixing hole; 9. No. 2 fixing hole; 10. Adjustment mounting plate; 11. DIN rail slot; 12. No. 3 fixing hole; 13. Sliding block; 14. Fixing screw. DETAILED DESCRIPTION

[0017] 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.

[0018] See also Figure 1-3The utility model provides the following technical solutions: an overvoltage and undervoltage protection device, comprising an overvoltage and undervoltage protection device body 1, a wiring socket 2 is provided at the top and bottom of the overvoltage and undervoltage protection device body 1, and the connected wires are inserted through the wiring socket 2, and a wiring tightening screw 3 is provided at the front of the overvoltage and undervoltage protection device body 1 corresponding to the wiring socket 2, and the wires in the corresponding wiring socket 2 are fixed or loosened by the wiring tightening screw 3, and a display screen 4 is provided in the middle of the front of the overvoltage and undervoltage protection device body 1, and the use of the device is observed through the display screen 4, and an adjustment button is provided at the bottom of the display screen 4. The device is adjusted and controlled by adjusting the button 5. An adjustment installation opening 6 is provided on the back of the overvoltage and undervoltage protection device body 1. Sliding grooves 7 are provided on the top and bottom of the adjustment installation opening 6. A No. 1 fixing hole 8 is provided on the upper half of the adjustment installation opening 6. A No. 2 fixing hole 9 is provided on the lower half of the adjustment installation opening 6. Two adjustment installation plates 10 are plugged into the inside of the adjustment installation opening 6. DIN guide rail grooves 11 are provided on the outer sides of the two adjustment installation plates 10. The entire device can be fixedly installed on the DIN guide rail of the distribution box through the DIN guide rail grooves 11 of the two adjustment installation plates 10.

[0019] The two adjustment mounting plates 10 are provided with No. 3 fixing holes 12 at positions corresponding to the No. 1 fixing holes 8 and the No. 2 fixing holes 9, so as to locate and fix the adjustment mounting plates 10 at the adjustment mounting openings 6 through the No. 1 fixing holes 8, the No. 2 fixing holes 9 and the No. 3 fixing holes 12;

[0020] The top and bottom of the two adjustment mounting plates 10 are both provided with sliding blocks 13, which are inserted into the interior of the sliding groove 7 and can move left and right. The adjustment mounting plates 10 can slide left and right inside the adjustment mounting opening 6 through the sliding blocks 13 and the sliding blocks 13;

[0021] The No. 3 fixing holes 12 of the adjustment mounting plate 10 are all provided with fixing screws 14. Under normal installation conditions, the overvoltage and undervoltage protection device body 1 is fixedly connected with the No. 1 fixing hole 8 and the No. 2 fixing hole 9 to complete the installation form 1. The entire device is fixedly mounted on the DIN rail of the distribution box through the two DIN rail grooves 11 of the adjustment mounting plate 10 of the installation form 1.

[0022] When the overvoltage and undervoltage protection device body 1 is installed abnormally, the two adjustment mounting plates 10 are moved to both sides, and the two inner No. 3 fixing holes 12 are aligned with the No. 1 fixing holes 8 and the No. 2 fixing holes 9 and fixed with fixing screws 14 to complete the second installation form. Through the second installation form, the DIN rail groove 11 is put on the DIN rail, and the No. 3 fixing holes 12 exposed on the outside are fixed on the electrical box with fixing screws 14 to complete the installation.

[0023] When in use, the adjustment mounting plate 10 can slide left and right inside the adjustment mounting opening 6 through the sliding block 13 and the sliding groove 7, and the adjustment mounting plate 10 is positioned and fixed in the position of the adjustment mounting opening 6 through the No. 1 fixing hole 8, the No. 2 fixing hole 9 and the No. 3 fixing hole 12, and the fixing screw 14 in the No. 3 fixing hole 12 is fixedly connected with the No. 1 fixing hole 8 and the No. 2 fixing hole 9 to complete the installation form 1, and the entire device is fixedly installed on the DIN rail of the distribution box through the DIN rail grooves 11 of the two adjustment mounting plates 10 of the installation form 1. When the DIN rail of the distribution box is deformed and the device cannot be fixed, the two adjustment mounting plates 10 are moved to both sides, and the two No. 3 fixing holes 12 on the inner side are aligned with the No. 1 fixing hole 8 and the No. 2 fixing hole 9 and fixed with the fixing screws 14 to complete the installation form 2, and the DIN rail groove 11 is put on the DIN rail through the installation form 2, and the No. 3 fixing hole 12 exposed on the outside is fixed on the electric box with the fixing screws 14 to complete the installation.

[0024] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An overvoltage and undervoltage protection device, comprising an overvoltage and undervoltage protection device body (1), characterized in that: The overvoltage / undervoltage protection device body (1) is provided with wiring sockets (2) at the top and bottom, and a wiring tightening screw (3) is provided at the front of the overvoltage / undervoltage protection device body (1) corresponding to the wiring socket (2). A display screen (4) is provided in the middle of the front of the overvoltage / undervoltage protection device body (1), and an adjustment button (5) is provided at the bottom of the display screen (4). An adjustment mounting opening (6) is provided at the back of the overvoltage / undervoltage protection device body (1), and a sliding groove (7) is provided at the top and bottom of the adjustment mounting opening (6). A No. 1 fixing hole (8) is provided at the upper half of the adjustment mounting opening (6), and a No. 2 fixing hole (9) is provided at the lower half of the adjustment mounting opening (6). Two adjustment mounting plates (10) are plugged into the inside of the adjustment mounting opening (6), and DIN guide rail grooves (11) are provided on the outer sides of the two adjustment mounting plates (10).

2. The overvoltage and undervoltage protection device according to claim 1, characterized in that: The two adjustment mounting plates (10) are each provided with a third fixing hole (12) at a position corresponding to the first fixing hole (8) and the second fixing hole (9).

3. The overvoltage and undervoltage protection device according to claim 1, characterized in that: The top and bottom of the two adjustment mounting plates (10) are both provided with sliding blocks (13), and the sliding blocks (13) are inserted into the interior of the sliding groove (7) and can move left and right.

4. The overvoltage and undervoltage protection device according to claim 2, characterized in that: The third fixing holes (12) of the adjustment mounting plate (10) are each provided with a fixing screw (14).

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