CN209767147U

CN209767147U - Lightning protection module for surge protection device

Info

Publication number: CN209767147U
Application number: CN201920985247.1U
Authority: CN
Inventors: 林孟东; 黄河敏; 袁夫生
Original assignee: Zhejiang Chengtong Electric Power Technology Co Ltd
Current assignee: Zhejiang Chengtong Electric Power Technology Co Ltd
Priority date: 2019-06-27
Filing date: 2019-06-27
Publication date: 2019-12-10
Anticipated expiration: 2029-06-27

Abstract

The utility model provides a lightning protection module for surge protection device, including module box, circuit board and closing cap, the module box has the cavity that holds the circuit board, and the circuit board is arranged in the cavity of module box and is fixed assembly with the module box through the closing cap, one side that the circuit board is close to the closing cap is equipped with the terminal seat that cooperates with binding post, and the part that the closing cap corresponds the terminal seat is equipped with the incision that supplies the terminal seat to pass; the edge that the circuit board is close to module box one side is equipped with the fault signal interface, correspondingly, the module box is equipped with the opening that supplies the fault signal interface to expose, the closing cap corresponds open-ended position and is equipped with the arch that is used for pushing down the fault signal interface, and this product can peg graft the circular telegram with surge protection device through making into an independent part with the lightning protection module, is convenient for change, and can release and alleviate the guard action to the surge current that produces in the circuit, simple structure, the security is strong, and is very practical.

Description

lightning protection module for surge protection device

Technical Field

The utility model relates to a novel earth-leakage protector's protection accessory, in particular to lightning protection module for surge protection device.

Background

Surge protector is present comparatively common circuit protection device, protects indirect thunder and direct thunder influence or the surge of other instantaneous overvoltages, and the lightning protection module among the current surge protection device all sets up inside surge protector, damages the back, and it is troublesome to change, inconvenient maintenance, has the defect, so need be used for surge protection device's lightning protection module just can solve these problems.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art, the utility model provides a lightning protection module for surge protection device, it adopts independent structure, can surge protection device plug cooperation circular telegram, is convenient for change.

In order to realize the purpose, the utility model adopts the technical scheme that: the lightning protection module for the surge protection device comprises a module box, a circuit board and a sealing cover, wherein the module box is provided with a cavity for accommodating the circuit board, the circuit board is arranged in the cavity of the module box and is fixedly assembled with the module box through the sealing cover, one side of the circuit board, which is close to the sealing cover, is provided with a terminal seat matched with a wiring terminal, and the part of the sealing cover, which corresponds to the terminal seat, is provided with a notch for the terminal seat to pass through; the edge of the circuit board close to one side of the module box is provided with a fault signal interface, correspondingly, the module box is provided with an opening for exposing the fault signal interface, a bulge for pressing the fault signal interface is arranged at the position of the sealing cover corresponding to the opening, and the side wall surface of the module box, the surface of the fault signal interface and the surface of the bulge are positioned on the same horizontal plane.

The utility model has the advantages that: the utility model provides a lightning protection module for surge protection device, this product can peg graft the circular telegram with surge protection device through making into an independent part with lightning protection module, is convenient for change, and can release and alleviate the guard action to the surge current that produces in the circuit, simple structure, and the security is strong, and is very practical.

Drawings

Fig. 1 is an exploded view of the lightning protection module of the present invention;

Fig. 2 is a schematic view of the matching structure of the lightning protection module and the surge protection device of the present invention;

Fig. 3 is an exploded view of the lightning protection module and the surge protection device of the present invention;

Fig. 4 is an exploded view of the connection terminal and the surge protection device of the present invention;

Fig. 5 is a schematic view of the connection terminal structure of the present invention.

Detailed Description

As shown in fig. 1 to 5, in order to manufacture the lightning protection module 200 as an independent component, the lightning protection module 200 for a surge protection device includes a module case 210, a circuit board 220 and a cover 230, wherein the module case 210 has a cavity for accommodating the circuit board 220, the circuit board 220 is disposed in the cavity of the module case 210 and fixedly assembled with the module case 210 through the cover 230, a terminal block 300 engaged with the terminal block 400 is disposed on one side of the circuit board 220 close to the cover 230, and a notch for the terminal block 300 to pass through is disposed at a position of the cover 230 corresponding to the terminal block 300; the edge that circuit board 220 is close to cartridge 210 one side is equipped with fault signal interface 221, correspondingly, cartridge 210 is equipped with the opening that supplies fault signal interface 221 to expose, the position that the closing cap 230 corresponds the opening is equipped with the arch 231 that is used for pushing down fault signal interface 221, cartridge 210 lateral wall surface, fault signal interface 221 surface and arch 231 surface are in same horizontal plane, and this product is through making into lightning protection module 200 an independent part, can peg graft the circular telegram with surge protection device 100, and be convenient for change, and can release and alleviate the guard action to the surge current that produces in the circuit, and simple structure, the security is strong, and is very practical, and surge protection device 100 that indicates in this embodiment is surge protector.

The lightning protection device further comprises a wiring terminal 400 which is assembled on the surge protection device 100 and is electrically connected with the surge protection device, the terminal base 300 is in plug-in power-on fit with the wiring terminal 400, and the lightning protection module 200 is manufactured into an independent component, so that the lightning protection module 200 and the surge protection device 100 need to be powered on by arranging one wiring terminal 400 on the surge protection device 100.

In order to release and relieve the protection effect on the surge circuit generated in the line, the circuit board 220 is electrically connected with a safety capacitor 222, a piezoresistor 223 and a signal lamp 224, and the surge current in the circuit is released and relieved through the safety capacitor 222 and the piezoresistor 223.

The module box 210 has a through hole 211 for the signal lamp 224 to emit light, and the signal lamp 224 plays a role in prompting and is used for displaying the working state of the lightning protection module 200.

at least four screw installation seats are arranged in the module box 210, holes for screws to pass through are arranged at the positions of the circuit board 220 corresponding to the screw installation seats, screw holes are arranged at the positions of the cover 230 corresponding to the screw installation seats, the cover 230 passes through the screw holes and passes through the holes of the circuit board 220 to be assembled and fixed with the screw installation seats of the module box 210 in a threaded manner through the screws, the assembly structure of the lightning protection module 200 is not limited to the screw holes, and the assembly structure is a scheme which is simple in structure and easy to implement.

The wiring terminal 400 is assembled on the surge protection device 100 through the mounting plate 500, and the assembly through the mounting plate 500 is simple in structure and good in mounting stability.

The mounting plate 500 is assembled with the surge protection device 100 at both sides by screws, and the connection terminal 400 is fixed to the mounting plate 500 by soldering, and the screw assembly structure is simple and stable, but the assembly structure is not limited thereto, and the screw assembly is only one of the embodiments.

In order to realize the function of the lightning protection module 200 of releasing and relieving the surge current generated in the line, the safety capacitor 222, the voltage dependent resistor 223 and the signal lamp 224 are all three groups. The circuit board 220 includes a main circuit and three branches, each of which is composed of a safety capacitor 222, a voltage dependent resistor 223 and a signal lamp 224 connected in series, and the three branches are connected in parallel with the main circuit. The main circuit is formed by connecting the wiring terminal 400, the terminal block 300 and the fault signal interface 221 in series, and the surge current in the circuit is reduced and released by arranging three branches.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments, and the above embodiments and descriptions are only illustrative of the principles of the present invention, and that simple modifications and substitutions by those skilled in the art are within the scope of the present invention without departing from the spirit and scope of the present invention.

Claims

1. The lightning protection module for the surge protection device is characterized by comprising a module box, a circuit board and a sealing cover, wherein the module box is provided with a cavity for accommodating the circuit board, the circuit board is arranged in the cavity of the module box and is fixedly assembled with the module box through the sealing cover, one side of the circuit board, which is close to the sealing cover, is provided with a terminal seat matched with a wiring terminal, and the part of the sealing cover, which corresponds to the terminal seat, is provided with a notch for the terminal seat to pass through; the edge of the circuit board close to one side of the module box is provided with a fault signal interface, correspondingly, the module box is provided with an opening for exposing the fault signal interface, a bulge for pressing the fault signal interface is arranged at the position of the sealing cover corresponding to the opening, and the side wall surface of the module box, the surface of the fault signal interface and the surface of the bulge are positioned on the same horizontal plane.

2. The lightning protection module for a surge protection device according to claim 1, further comprising a terminal block mounted on and electrically connected to the surge protection device, the terminal block being plugged into electrical engagement with the terminal block.

3. The lightning protection module for a surge protection device according to claim 1, wherein said wiring board is electrically coupled with a safety capacitor, a varistor and a signal lamp.

4. A lightning protection module for a surge protection device according to claim 3, wherein said module housing side walls are provided with through holes for signal lamp light to exit.

5. The lightning protection module according to claim 1, wherein at least four screw mounting seats are provided in the module case, holes for screws to pass through are provided at positions of the circuit board corresponding to the screw mounting seats, screw holes are provided at positions of the cover corresponding to the screw mounting seats, and the cover is screwed and fixed to the screw mounting seats of the module case by screws passing through the screw holes and through the holes of the circuit board.

6. The lightning protection module for a surge protection device according to claim 2, wherein the terminal is mounted to the surge protection device by a mounting plate.

7. the lightning protection module for a surge protection device according to claim 6, wherein the mounting plate is assembled with the surge protection device by screws at both sides thereof, and the connection terminals are fixed to the mounting plate by soldering.

8. The lightning protection module for a surge protection device according to claim 3, wherein the safety capacitors, the piezoresistors, and the signal lamps are all three groups.

9. The lightning protection module for a surge protection device according to claim 8, wherein the wiring board comprises a main circuit and three branches, each branch consisting of a safety capacitor, a varistor and a signal lamp connected in series, the three branches being connected in parallel with the main circuit.

10. The lightning protection module for a surge protection device according to claim 9, wherein the main circuit is comprised of a wire terminal and a terminal block in series with a fault signal interface.