CN215834438U

CN215834438U - Surge backup protector

Info

Publication number: CN215834438U
Application number: CN202122497771.4U
Authority: CN
Inventors: 吴乐阳; 郑立夫
Original assignee: Zhejiang Baoming Electric Appliance Co ltd
Current assignee: Zhejiang Baoming Electric Appliance Co ltd
Priority date: 2021-10-16
Filing date: 2021-10-16
Publication date: 2022-02-15
Anticipated expiration: 2031-10-16

Abstract

The utility model relates to a surge backup protector which comprises a shell, an operating mechanism, a moving contact, a static contact, an electromagnetic trip, an arc extinguish chamber and a gas discharge tube, wherein the moving contact is in linkage fit with the operating mechanism, the moving contact is arranged in the shell corresponding to the moving contact, the remote signaling module comprises a driving piece, a torsion spring, a micro switch and a signal terminal, the driving piece is rotatably arranged in the shell and is in linkage fit with the moving contact, the torsion spring is arranged between the shell and the driving piece, the micro switch is arranged in the shell and is matched with the driving piece, the signal terminal is arranged in the shell and is electrically connected with the micro switch, a driving arm matched with the micro switch is arranged on one side of the driving piece, the driving arm rotates along with the driving piece and can trigger the micro switch, and the micro switch can be switched on or switched off. The utility model has the advantages of simple structure, stable and reliable performance, convenient assembly and remote signaling function.

Description

Surge backup protector

Technical Field

The utility model relates to a backup protector, in particular to a backup protector with a remote signaling function.

Background

The backup protector is used for protecting a fault when a main protector or a breaker fails. When a circuit fails, the protection on the circuit will momentarily signal the open element (e.g., a circuit breaker) of the circuit, and this immediate action protection is the main protection. When the main protection is not active for various reasons, after a short delay (the delay time is according to the requirements of each loop), another protection will start and act, and the fault loop will be tripped. This protection is the backup protection. The surge backup protector comprises a shell, an operating mechanism, a contact system, an arc extinguish chamber and a gas discharge tube, when the surge voltage exceeds the withstand voltage of a circuit system, the gas discharge tube is broken down to generate an arc discharge phenomenon, and the arc voltage is low and is only dozens of volts, so that the further rise of the surge voltage can be limited in a short time. The gas discharge tube limits surge voltage by using the principle and plays a role in overvoltage protection for a circuit. The existing surge backup protector does not have a remote signaling function, a background cannot know the working state of the backup protector, the background cannot monitor the backup protector in real time, the safety performance is low, and the surge backup protector also has the defects of complex structure, unreliable performance and inconvenient assembly.

Disclosure of Invention

The utility model aims to overcome the defects of the prior art and provides a backup protector which is simple in structure, stable and reliable in performance, convenient and fast to assemble and has a remote signaling function.

In order to achieve the purpose, the surge backup protector comprises a shell, an operating mechanism, a moving contact, a fixed contact, an electromagnetic trip, an arc extinguish chamber and a gas discharge tube, wherein the moving contact is in linkage fit with the operating mechanism, the moving contact is arranged in the shell corresponding to the moving contact, the remote signaling module comprises a driving piece, a torsion spring, a microswitch and a signal terminal, the driving piece is rotatably arranged in the shell and is in linkage fit with the moving contact, the torsion spring is arranged between the shell and the driving piece, the microswitch is arranged in the shell and is matched with the driving piece, the signal terminal is arranged in the shell and is electrically connected with the microswitch, a driving arm matched with the microswitch is arranged on one side of the driving piece, the driving arm rotates along with the driving piece and can trigger the microswitch, and the microswitch can be switched on or switched off.

The beneficial effect of above-mentioned structure is: the remote signaling module matched with the moving contact is arranged in the shell, the moving contact can be monitored by the remote signaling module, and the monitored disconnection signal can be sent to the background, so that the real-time monitoring of the surge protector by the background can be realized. When the surge protector works, the moving contact drives the driving piece to rotate when the moving contact is disconnected, the driving piece can trigger the contact piece of the microswitch, so that the microswitch can be switched on, and the microswitch can send a signal to a background through the signal terminal, so that the remote signaling function of the surge protector can be realized. The driving piece and the bottom shell are in rotating connection and matching, the driving piece can reliably trigger the micro switch, a torsional spring is arranged between the driving piece and the shell, the torsional spring can improve the action sensitivity of the driving piece, and the torsional spring can guarantee that the driving piece can reliably act. Therefore, the surge protector has the functions of simple structure, stable and reliable performance, convenient assembly and remote signaling function.

Particularly, a transmission arm matched with the moving contact is arranged on the other side of the driving piece, and the transmission arm moves along with the moving contact and can drive the driving piece to rotate. The driving arm matched with the moving contact is arranged on the driving piece, so that the driving between the moving contact and the driving piece can be ensured to be more reliable, and the working reliability of the surge protector can be improved.

Particularly, the driving arm is provided with an arc driving surface matched with the micro switch, the arc driving surface acts along with the driving arm and can be abutted against a contact piece of the micro switch, and the micro switch can be switched on or off. The arc-shaped driving surface is arranged on the driving arm and can reliably drive a contact piece of the microswitch, so that the working reliability of the surge protector is improved.

Particularly, the casing include the drain pan, set up the epitheca on the drain pan, the drain pan in be provided with the storage tank, the storage tank in be provided with the reference column, the driving piece on be provided with the locating hole, and the reference column alternates in the locating hole, and constitute the swivelling joint cooperation of driving piece and casing, the epitheca on be provided with the constant head tank of suit one end at the driving piece. The driving piece rotates and sets up on the reference column in the drain pan to be convenient for the assembly of driving piece and drain pan, the assembly is more convenient, and can guarantee that the driving piece can reliably rotate in the drain pan, thereby be favorable to improving this surge protector's operational reliability.

Particularly, the torsion spring is sleeved on the positioning column, the driving part is provided with a groove covering the torsion spring, the groove is communicated with the positioning hole, one end of the torsion spring is clamped in the limiting groove of the accommodating groove, and the other end of the torsion spring is clamped on the limiting sheet of the driving part. The torsional spring block is between driving piece and drain pan to the assembly of driving piece, torsional spring and drain pan of being convenient for, the assembly is more convenient, and can guarantee that the drive can reliably reset, is favorable to improving this surge protector's operational reliability.

Drawings

Fig. 1 is an internal structural view of an embodiment of the present invention.

Fig. 2 is an exploded view of an embodiment of the present invention.

FIG. 3 is a perspective view of a driving member according to an embodiment of the present invention.

Fig. 4 is a perspective view of an upper housing according to an embodiment of the present invention.

Detailed Description

As shown in fig. 1 to 4, an embodiment of the present invention is a surge backup protector, including a housing 10, an operating mechanism 11, a movable contact 12 in linkage fit with the operating mechanism 11, a fixed contact 13, an electromagnetic trip 14, an arc extinguish chamber 15, and a gas discharge tube 16, where the gas discharge tube 16 is connected to the fixed contact 13, and a conductive plate 18 is disposed between the gas discharge tube 16 and a connection terminal 17, a telecommand module 20 is disposed in the housing 10 corresponding to the movable contact 12, the telecommand module 20 includes a driving part 21 rotatably disposed in the housing 10 and in linkage fit with the movable contact 12, a torsion spring 22 disposed between the housing 10 and the driving part 21, a micro switch 23 disposed in the housing 10 and in fit with the driving part 21, and a signal terminal 24 disposed in the housing 10 and electrically connected to the micro switch 23, and a driving arm 211 matched with the micro switch 23 is disposed on one side of the driving part 21, the driving arm 211 rotates with the driving member 21 and can trigger the micro switch 23, and can realize the connection or disconnection of the micro switch 23.

As shown in fig. 1, 2 and 3, a driving arm 212 cooperating with the movable contact 12 is disposed on the other side of the driving member 21, and the driving arm 212 acts with the movable contact 12 and drives the driving member 21 to rotate. The driving arm matched with the moving contact is arranged on the driving piece, so that the driving between the moving contact and the driving piece can be ensured to be more reliable, and the working reliability of the surge protector can be improved. The driving arm 211 is provided with an arc driving surface 213 matched with the micro switch 23, the arc driving surface 213 acts along with the driving arm 211 and can be abutted against a contact plate 231 of the micro switch 23, and the micro switch 23 can be switched on or off. The arc-shaped driving surface is arranged on the driving arm and can reliably drive a contact piece of the microswitch, so that the working reliability of the surge protector is improved. The casing 10 comprises a bottom casing 101 and an upper casing 102 arranged on the bottom casing 101, wherein a containing groove 103 is formed in the bottom casing 101, a positioning column 104 is arranged in the containing groove 103, a positioning hole 214 is formed in the driving part 21, the positioning column 104 penetrates through the positioning hole 214 and forms a rotating connection fit between the driving part 21 and the casing 10, and a positioning groove 105 sleeved on one end of the driving part 21 is formed in the upper casing 102. The driving piece rotates and sets up on the reference column in the drain pan to be convenient for the assembly of driving piece and drain pan, the assembly is more convenient, and can guarantee that the driving piece can reliably rotate in the drain pan, thereby be favorable to improving this surge protector's operational reliability. The torsion spring 22 is sleeved on the positioning post 104, the driving member 21 is provided with a groove 215 covering the torsion spring 22, the groove 215 is communicated with the positioning hole 214, one end of the torsion spring 22 is clamped in the limiting groove 106 of the accommodating groove 103, and the other end of the torsion spring 22 is clamped on the limiting sheet 216 of the driving member 21. The torsional spring block is between driving piece and drain pan to the assembly of driving piece, torsional spring and drain pan of being convenient for, the assembly is more convenient, and can guarantee that the drive can reliably reset, is favorable to improving this surge protector's operational reliability.

The remote signaling module matched with the moving contact is arranged in the shell, the moving contact can be monitored by the remote signaling module, and the monitored disconnection signal can be sent to the background, so that the real-time monitoring of the surge protector by the background can be realized. When the surge protector works, the moving contact drives the driving piece to rotate when the moving contact is disconnected, the driving piece can trigger the contact piece of the microswitch, so that the microswitch can be switched on, and the microswitch can send a signal to a background through the signal terminal, so that the remote signaling function of the surge protector can be realized. The driving piece and the bottom shell are in rotating connection and matching, the driving piece can reliably trigger the micro switch, a torsional spring is arranged between the driving piece and the shell, the torsional spring can improve the action sensitivity of the driving piece, and the torsional spring can guarantee that the driving piece can reliably act. Therefore, the surge protector has the functions of simple structure, stable and reliable performance, convenient assembly and remote signaling function.

Claims

1. The utility model provides a surge backup protector, includes casing, operating device, with operation operating device linkage complex moving contact, static contact, electromagnetism release, explosion chamber, gas discharge tube, its characterized in that: the casing in correspond moving contact department and be provided with the remote signalling module, the remote signalling module including rotate set up in the casing and with moving contact linkage complex driving piece, set up the torsional spring between casing and driving piece, set up in the casing and with driving piece matched with micro-gap switch, set up in the casing and with the signal terminal that micro-gap switch electricity is connected, one side of driving piece on be provided with micro-gap switch matched with actuating arm, the actuating arm rotate and can trigger micro-gap switch along with the driving piece, and can realize micro-gap switch's switch-on or disconnection.

2. The surge backup protector of claim 1, wherein: and a transmission arm matched with the moving contact is arranged on the other side of the driving piece, and the transmission arm acts along with the moving contact and can drive the driving piece to rotate.

3. A surge backup protector according to claim 1 or 2, wherein: the driving arm is provided with an arc driving surface matched with the micro switch, the arc driving surface acts along with the driving arm and can be abutted against a contact piece of the micro switch, and the micro switch can be switched on or off.

4. A surge backup protector according to claim 1 or 2, wherein: the casing include the drain pan, set up the epitheca on the drain pan, the drain pan in be provided with the storage tank, the storage tank in be provided with the reference column, the driving piece on be provided with the locating hole, and the reference column alternates in the locating hole, and constitute the rotation connection cooperation of driving piece and casing, the epitheca on be provided with the constant head tank of suit one of driving piece.

5. The surge backup protector of claim 4, wherein: the torsional spring suit on the reference column, the driving piece on be provided with the recess of shroud on the torsional spring, this recess is linked together with the locating hole, the spacing inslot of one end block at the storage tank of torsional spring, the spacing piece of the other end block at the driving piece of torsional spring.