CN212649865U

CN212649865U - Board carries electric surge protector

Info

Publication number: CN212649865U
Application number: CN202021456447.7U
Authority: CN
Inventors: 束静; 钱一帆
Original assignee: Changzhou Chuangjie Lightning Protection Co ltd
Current assignee: Changzhou Chuangjie Lightning Protection Co ltd
Priority date: 2020-07-22
Filing date: 2020-07-22
Publication date: 2021-03-02
Anticipated expiration: 2030-07-22

Abstract

The utility model relates to an overvoltage, lightning protection technical field, which solves the problems of large volume, large occupied space area and low electrical isolation degree of the prior surge protector, in particular to a plate-mounted surge protector, which comprises a shell, an inner lock pin, a release piece, an elastic sheet, a remote signaling switch component and a piezoresistor body; the inner insertion core is arranged inside the shell, a thermal trip welding point is arranged on the inner insertion core, the separating piece and the piezoresistor body are respectively arranged on two sides of the inner insertion core, the elastic piece is arranged above the separating piece, and the thermal trip welding point is formed by welding an electrode on the piezoresistor body and the elastic piece. The utility model discloses reached when reducing self volume, can effectively cut off the electric arc that probably appears to reaction sensitivity is high, can satisfy the needs that the power complete machine integrates, miniaturization, power maximize.

Description

Board carries electric surge protector

Technical Field

The utility model relates to an overvoltage, lightning protection technical field especially relate to a board carries surge protector.

Background

With the increasing miniaturization of electronic equipment, the original plug-in (or rail-mounted) surge protector is not more and more suitable for the requirement of the increasingly miniaturized equipment due to large occupied space; such as: in the photovoltaic industry, the original large-scale centralized photovoltaic power generation mode is changed into the distributed photovoltaic power generation mode, a power generation combiner box, an inverter and other equipment provide new challenges for the volume and the cost, the surge protector is developing miniaturization, and the traditional guide rail type mounted surge protector cannot meet the increasingly vigorous technical and business requirements of the industry.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model provides a not enough to prior art, the utility model provides a board carries electric surge protector has solved present surge protector bulky, and occupation space area is big and the problem that electrical isolation degree is low, has reached when reducing self volume, can effectively cut off electric arc probably to reaction sensitivity is high, can satisfy the needs that the power complete machine integrates, miniaturization, power maximize.

(II) technical scheme

In order to realize the technical problem, the utility model provides a following technical scheme: the utility model provides a board carries electric surge protector, includes casing, interior lock pin, separation member, pressure spring, shell fragment, telesignaling switch module, piezoresistor body, interior lock pin is installed inside the casing, be provided with the thermal trip welding point on the interior lock pin, the both sides of lock pin including separation member and piezoresistor body set up respectively, the shell fragment sets up in the separation member top, the thermal trip welding point is formed by electrode and shell fragment welding on the piezoresistor body.

Furthermore, the separating element is driven by an internal pressure spring and can horizontally move along a guide rail locally protruding on the surface of the inner inserting core, the side face of the head of the separating element is tightly attached to the elastic sheet before the thermal tripping welding point does not act, the separating element horizontally moves to the right under the pushing of the internal pressure spring when the thermal tripping welding point melts to push the elastic sheet to bounce, and the head of the separating element is inserted between the elastic sheet and the electrode of the piezoresistor to play an arc isolating role.

Furthermore, the electrode on the piezoresistor body is a flat electrode, penetrates through the flat hole on the inserted core and is welded with the tail end of the elastic sheet to form a low-temperature tripping point.

Furthermore, the elastic sheet is made of beryllium bronze or phosphor bronze with certain elasticity, and the outer surface of the elastic sheet is subjected to silver plating or tin plating treatment.

Further, before the thermal trip welding point does not act, the lower end of the separating part presses the second remote signaling electrode, so that the first remote signaling electrode of the remote signaling switch assembly and the metal sheet of the second remote signaling electrode are in a contact state, after the trip welding point acts, the lower end of the separating part horizontally moves to the right side, the second remote signaling electrode bounces, and the remote signaling switch assembly is disconnected.

Further, the remote signaling switch assembly is composed of a first remote signaling electrode and a second remote signaling electrode, and the second remote signaling electrode is located above the top of the first remote signaling electrode.

Further, the first remote signaling electrode and the second remote signaling electrode are both made of beryllium bronze or phosphor bronze with certain elasticity, and the outer surfaces of the first remote signaling electrode and the second remote signaling electrode are both subjected to gold electroplating treatment.

Furthermore, the arc-extinguishing grid adopts a row of zigzag plastic parts, and the openings of the zigzag plastic parts are parallel to the contact surface of the thermal trip welding point, so that the arc-extinguishing grid can further cut off the arc-spraying which is possibly generated when the low-temperature welding point is disconnected.

(III) advantageous effects

The utility model provides a board carries electric surge protector possesses following beneficial effect:

1. the utility model discloses compact structure, the product volume is less, can satisfy the needs that the power complete machine integrates, miniaturization, power maximize, and the pin can the lug weld on the PCB board to under the prerequisite of guaranteeing that surge protector does not occupy the big space, can effectively cut off the electric arc that probably appears, reach electrical isolation's purpose.

2. The utility model provides a surge protector can reduce the volume relatively in the past by a wide margin, consequently can save a large amount of installation spaces, and its self electrical isolation performance is good simultaneously, and reaction sensitivity is high, can satisfy the user demand in this trade.

Drawings

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a front view of the varistor body of the present invention.

In the figure: 1, a shell; 2, inserting an inner core; 3 a disengaging member; 4, pressing a spring; 5 a remote signaling switch assembly; 6 a piezoresistor body; 7 thermally tripping the welding point; 8, a spring plate; 9 a sawtooth-shaped plastic part; 31 a stripper head; 32 lower end of the stripper; 51 a first remote signalling electrode; 52 second remote signalling electrode.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-2, the present invention provides a technical solution: a plate-carried surge protector comprises a shell 1, an inner insertion core 2, a separating piece 3, a pressure spring 4, a telecommand switch assembly 5, a piezoresistor body 6 and a spring piece 8, wherein the inner insertion core 2 is arranged in the shell 1, the inner insertion core 2 is provided with a thermal trip welding point 7, the separating piece 3 and the piezoresistor body 6 are respectively arranged at two sides of the inner insertion core 2, the spring piece 8 is arranged on the separating piece 3, the thermal trip welding point 7 is formed by welding an electrode on the piezoresistor body 6 and the spring piece 8, when the thermal trip welding point 7 is in a connection state, the lower end of the separating piece 3 is tightly pressed on a second telecommand electrode 52 on the telecommand switch assembly 5, a first telecommand electrode 51 and the second telecommand electrode 52 on the telecommand switch assembly 5 are in a conduction state under pressure, a telecommand signal is in a 'communication' state, and after the trip welding, the lower end 32 of the release piece moves horizontally to the right side, the second remote signaling electrode bounce 52 is in a separated state by utilizing the elasticity of the second remote signaling electrode bounce 52, a remote signaling contact is changed from on to off, the remote signaling switch assembly 5 is composed of a first remote signaling electrode 51 and a second remote signaling electrode 52, the second remote signaling electrode 52 is located right above the top of the first remote signaling electrode 51, the first remote signaling electrode 51 and the second remote signaling electrode 52 are both made of beryllium bronze or phosphor bronze with certain elasticity, and the outer surfaces of the first remote signaling electrode 51 and the second remote signaling electrode 52 are both plated with gold so as to reduce contact resistance and improve reaction sensitivity.

The electrode on the piezoresistor body 6 passes through the inner insertion core and is welded with the elastic sheet 8 to form a low-temperature trip point, when a low-temperature welding point is in a separated state, the trip piece 3 rotates rightwards under the pushing of the pressure spring 4, the trip piece is isolated between the electrode of the elastic sheet 8 and the piezoresistor 6, the electrode of the piezoresistor 6 can be isolated from the elastic sheet 8, the electric isolation effect is achieved, a row of zigzag plastic pieces are designed on the right side of the low-temperature welding point to play the role of an arc extinguishing grid, the arc spraying which is possibly generated when the low-temperature welding point is disconnected can be further cut off, the elastic sheet 8 is made of beryllium bronze or phosphor bronze with certain elasticity, and the outer surface of the elastic sheet 8 is processed by silver plating or tin plating, the surge protector provided by the utility model can greatly reduce the volume relatively in the past, thereby saving a large amount of installation, can meet the use requirements of the industry.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A board-mounted surge protector comprises a shell (1), an inner inserting core (2), a disengaging piece (3), a pressure spring (4), a remote signaling switch assembly (5), a piezoresistor body (6) and an elastic sheet (8); the method is characterized in that: the utility model discloses a remote signaling switch assembly, including casing (1), interior lock pin (2) are installed inside casing (1), be provided with thermal trip welding point (7) on interior lock pin (2), break away from the both sides of piece (3) and piezoresistor body (6) setting respectively including lock pin (2), shell fragment (8) set up in break away from piece (3) top, thermal trip welding point (7) are formed by electrode and shell fragment (8) welding on piezoresistor body (6), break away from having horizontal guide to be connected between piece (3) bottom and interior lock pin (2), ensure that break away from piece (3) can only be horizontal motion, remote signaling switch assembly (5) fixed mounting is in the bottom of casing (1) inner wall, lower extreme (32) that break away from the piece contact with the sheetmetal of remote signaling switch assembly (5).

2. A board-mounted surge protector according to claim 1, characterized in that: the separation piece (3) is driven by an internal pressure spring (4) to move horizontally along a guide rail locally protruding on the surface of the inner insertion core (2), before the thermal trip welding point (7) does not act, the side face of the separation piece head (31) is tightly attached to the elastic sheet (8), when the thermal trip welding point (7) melts, the separation piece (3) moves horizontally to the right under the pushing of the internal pressure spring (4), the elastic sheet (8) is pushed to bounce, and the separation piece head (31) is inserted between the elastic sheet (8) and the piezoresistor electrode.

3. A board-mounted surge protector according to claim 1, characterized in that: before the thermal trip welding point (7) does not act, the lower end (32) of the trip piece is pressed on the remote signaling switch assembly (5) to enable the metal sheets of the first remote signaling electrode (51) and the second remote signaling electrode (52) of the remote signaling switch assembly (5) to be in a contact state, after the trip welding point (7) acts, the lower end (32) of the trip piece horizontally moves towards the right side, the second remote signaling electrode (52) bounces, and the remote signaling switch assembly (5) is disconnected.

4. A board-mounted surge protector according to claim 1, characterized in that: the elastic sheet (8) is made of beryllium bronze or phosphor bronze with certain elasticity, and the outer surface of the elastic sheet (8) is subjected to silver plating or tin plating treatment.

5. A board-mounted surge protector according to claim 1, characterized in that: the remote signaling switch assembly (5) is composed of a first remote signaling electrode (51) and a second remote signaling electrode (52), and the second remote signaling electrode (52) is located above the top of the first remote signaling electrode (51).

6. A board-mounted surge protector according to claim 5, characterized in that: the first remote signaling electrode (51) and the second remote signaling electrode (52) are both made of beryllium bronze or phosphor bronze with certain elasticity, and the outer surfaces of the first remote signaling electrode (51) and the second remote signaling electrode (52) are all subjected to electrogilding treatment.

7. A board-mounted surge protector according to claim 1, characterized in that: the right side of the inner inserting core (2) is provided with a row of arc-extinguishing grids, and the contact surface of the thermal trip welding point (7) is parallel to the opening of the sawtooth-shaped plastic part (9).