CN214590578U

CN214590578U - Integral type surge protector

Info

Publication number: CN214590578U
Application number: CN202120652770.XU
Authority: CN
Inventors: 吕学学; 杨勇; 赵凯钒; 蒋天贞; 蔡君
Original assignee: Yueqing Yijin Electronic Co ltd
Current assignee: Yueqing Yijin Electronic Co ltd
Priority date: 2021-03-31
Filing date: 2021-03-31
Publication date: 2021-11-02
Anticipated expiration: 2031-03-31

Abstract

The utility model discloses an integral type surge protector solves the problem that surge protector adopts split type structure and causes at present stage. Including integrative casing and apron, the inner chamber has in the integrative casing, and inner chamber one side has uncovered, the apron lid closes in the uncovered department of integrative casing, be provided with the protection actuating mechanism who is located the middle part in the inner chamber and be located the external binding post of side position, protection actuating mechanism is connected with external binding post through the wire. The integrated shell structure is adopted, the original split structure is changed, the plugging parts required by the split structure are reduced, the machining procedures in the production and manufacturing process are obviously reduced, the production efficiency is accelerated, and the part production cost and the labor cost are saved.

Description

Integral type surge protector

Technical Field

The utility model belongs to the technical field of the electric power surge protection and specifically relates to an integral type surge protector.

Background

At present, in order to prevent lightning overvoltage or overcurrent and operation overvoltage from causing great damage to electronic and electrical equipment instantly, a surge protector is usually arranged at a wiring port for protection. The existing surge protector adopts a split structure and is formed by inserting a protection module into a base, and the base is externally connected to an external electric device or an external interface through a lead to form a protection loop. The structure mode that the protection module is inserted on the base can facilitate the replacement of the protection module, but the number of parts is increased due to the increase of the processing procedure in the production and manufacturing process, and the cost of a production enterprise is greatly burdened.

Disclosure of Invention

The utility model aims at: in order to overcome the defect of the prior art, the utility model provides an integral type surge protector solves the problem that surge protector adopts split type structure and causes at present stage.

The technical scheme of the utility model: including integrative casing and apron, the inner chamber has in the integrative casing, and inner chamber one side has uncovered, the apron lid closes in the uncovered department of integrative casing, be provided with the protection actuating mechanism who is located the middle part in the inner chamber and be located the external binding post of side position, protection actuating mechanism is connected with external binding post through the wire.

By adopting the technical scheme, the integrated shell structure is adopted, the original split structure is changed, the number of the plug parts required by the split structure is reduced, the number of machining processes in the production and manufacturing process is obviously reduced, the production efficiency is increased, and the part production cost and the labor cost are saved.

The utility model discloses a further setting: external binding post is including first wiring end and second wiring end, protection actuating mechanism is including having piezo-resistor chip and hot melt piece, piezo-resistor chip fixed mounting is in integrative casing, the piezo-resistor chip has last pin and the lower pin of being connected with second wiring end wire, go up pin department and seted up the pin jack, the hot melt piece has the grafting end and the link that are located both sides tip, the grafting end of hot melt piece alternates in the pin jack and with last pin fixed connection, the link of hot melt piece is connected with first wiring end through the wire.

By adopting the above further arrangement, when the circuit voltage reaches a certain value, then the resistance of the piezoresistor chip begins to decrease, and the circuit current increases to enable the hot melt sheet to be fused under the action of overvoltage, so that the protection effect of the surge protection loop is formed, and the surge protection loop is simple and efficient in design and easy to assemble.

The utility model discloses a further setting again: the lower pin of the piezoresistor chip is connected with the second wiring end through one conducting wire in a spot welding mode, and the connecting end of the hot melting sheet is connected with the first wiring end through the other conducting wire in a spot welding mode.

By adopting the above further arrangement, the two ends of the wire are directly welded between the protection action mechanism and the external connecting terminal, so that the assembly time is saved, and the number of parts is further reduced.

The utility model discloses a still further set up: the protection action mechanism also comprises an indicating bracket and a tension spring, the indicating bracket is movably erected above the piezoresistor chip, a pin shaft arranged on the integrated shell is hinged with one end of the indicating bracket, the other end of the indicating bracket is hooked with one end of the tension spring, and the other end of the tension spring is fixed in the integrated shell; a clamping buckle is convexly arranged in the middle of the indicating support, a clamping hole is formed in the middle of the hot melt sheet, the hot melt sheet is erected and arranged on the indicating support, and the clamping buckle is in clamping fit with the clamping hole; the top of integrative casing is provided with transparent window, is close to transparent window department be provided with the instruction region on the instruction support.

Adopt above-mentioned still further setting, after the accident, the hot melt piece fuses in screens hole department, and the screens that breaks away from the screens hole is detained to the screens, instructs the support and swings under the effect of extension spring to the instruction district information change that can observe in the transparent window has indicative function, instructs structural design simple more effective.

The utility model discloses a still further set up: an insertion row hole for inserting an external insertion row is formed in the position, close to the external connection terminal, of the integrated shell.

By adopting the above further arrangement, the external socket is inserted into the socket hole to be connected with the external wiring terminal, so that the connection is facilitated.

Drawings

FIG. 1 is a schematic diagram of the internal structure of an embodiment of the present invention;

FIG. 2 is a schematic diagram of an external structure of an embodiment of the present invention;

wherein, 1, an integrated shell; 2. a protection action mechanism; 3. connecting terminals are externally connected; 4. a cover plate; 31. a first terminal; 32. a second terminal; 21. a varistor chip; 22. an indication bracket; 23. a hot melt sheet; 24. a tension spring; 211. an upper pin; 212. a lower pin; 213. a pin jack; 11. a pin shaft; 221. a clamping buckle; 231. a position clamping hole; 12. a transparent window; 222. an indication area; 13. a socket hole.

Detailed Description

As shown in fig. 1 and 2, an integral type surge protector, including integrative casing 1 and the apron 4 that the lid fits integrative casing 1 side, integrative casing 1 is "T" style of calligraphy of falling, has the inner chamber in integrative casing 1, and inner chamber one side has uncovered, and apron 4 lid fits the uncovered department of integrative casing 1, be provided with the protection actuating mechanism 2 that is located the middle part and be located the external connection terminal 3 of side position in the inner chamber, protection actuating mechanism 2 is connected with external connection terminal 3 through the wire. The integrated shell can reduce the plugging parts required by the split structure and even reduce the whole volume. The external connection terminal 3 comprises a first terminal 31 positioned on the right side and a second terminal 32 positioned on the left side; the protection action mechanism 2 comprises a piezoresistor chip 21, an indication support 22, a hot melt sheet 23 and a tension spring 24, wherein the piezoresistor chip 21 is fixedly arranged in the integrated shell 1, a partition plate is arranged at the periphery of the area where the piezoresistor chip 21 is located, and the piezoresistor chip 21 in the partition plate is filled with glue, so that the glue is solidified on the outer surface of the piezoresistor chip 21 to form fixation. The varistor chip 21 has an upper pin 211 and a lower pin 212 connected to the second terminal 32 by a wire, the upper pin 211 has a pin insertion hole 213, the thermal fuse 23 further has a plug end and a connection end at both ends, the plug end of the thermal fuse 23 is inserted into the pin insertion hole 213 and fixedly welded to the upper pin 211, and the connection end of the thermal fuse 23 is connected to the first terminal 31 by a wire. The indicating support 22 is movably erected above the piezoresistor chip 21, a pin shaft 11 is fixedly arranged on the integrated shell 1 and hinged to one end of the indicating support 22, the other end of the indicating support 22 is hooked with one end of a tension spring 24, the other end of the tension spring 24 is fixed in the integrated shell 1, the indicating support 22 takes the pin shaft 11 as a rotating point, and the indicating support 22 is pulled to swing by the tension spring 24 under the condition that the indicating support 22 is not limited. The middle part of indication support 22 is provided with screens and detains 221 in the protrusion, and the middle part of hot melt piece 23 is seted up screens hole 231, and hot melt piece 23 erects to be installed on indication support 22 and screens detain 221 and screens hole 231 looks screens cooperation. In a normal state, the resistance of the varistor chip 21 is large, and the connection terminal of the thermal fuse 23 and the lower pin 212 are in a non-conductive state. When abnormal conditions such as lightning strike occur, the voltage on the circuit suddenly increases, then the resistance of the piezoresistor chip 21 starts to decrease, and the overvoltage forms a surge current to flow out of the conduction region. If the voltage dependent resistor chip 21 fails, the circuit current increases to make the thermal fuse 23 be heated and fused under the action of overvoltage, the position-locking buckle 221 is separated from the position-locking hole 231 to make the position-locking fail, and the indicating bracket 22 swings under the action of the tension spring 24. The top of integrative casing 1 is provided with transparent window 12, is provided with the instruction region 222 on the instruction support 22 that is close to transparent window 12 department, and instruction region 222 has red region and the green region that shows safety that shows the warning respectively, and when screens buckle 221 and screens hole 231 screens cooperation, green region is just to transparent window 12, and after the screens became invalid, instruction support 22 swung, and red region moves to just to transparent window 12 department thereupon.

The lower pin 212 of the varistor chip 21 is connected to the second terminal 32 via a single conductor, the connection end of the thermal fuse 23 is connected to the first terminal 31 via another single conductor, and the two ends of the two conductors are fixed to the corresponding connection positions by spot welding. Need not to connect through plug part, directly form reliable connection through the wire, reduce the assembly degree of difficulty.

An inserting row hole 13 for inserting an external inserting row is formed in the position, close to the external connecting terminal 3, of the integrated shell 1, and a connecting mode for inserting the external inserting row into the inserting row hole 13 is provided.

Claims

1. An integral type surge protector which characterized in that: including integrative casing and apron, the inner chamber has in the integrative casing, and inner chamber one side has uncovered, the apron lid closes in the uncovered department of integrative casing, be provided with the protection actuating mechanism who is located the middle part in the inner chamber and be located the external binding post of side position, protection actuating mechanism is connected with external binding post through the wire.

2. The integrated surge protector of claim 1, wherein: external binding post is including first wiring end and second wiring end, protection actuating mechanism is including having piezo-resistor chip and hot melt piece, piezo-resistor chip fixed mounting is in integrative casing, the piezo-resistor chip has last pin and the lower pin of being connected with second wiring end wire, go up pin department and seted up the pin jack, the hot melt piece has the grafting end and the link that are located both sides tip, the grafting end of hot melt piece alternates in the pin jack and with last pin fixed connection, the link of hot melt piece is connected with first wiring end through the wire.

3. The integrated surge protector of claim 2, wherein: the lower pin of the piezoresistor chip is connected with the second wiring end through one conducting wire in a spot welding mode, and the connecting end of the hot melting sheet is connected with the first wiring end through the other conducting wire in a spot welding mode.

4. An integrated surge protector according to claim 2 or 3, wherein: the protection action mechanism further comprises an indicating support and a tension spring, the indicating support is movably erected above the piezoresistor chip, a pin shaft is arranged on the integrated shell and hinged to one end of the indicating support, the other end of the indicating support is hooked with one end of the tension spring, and the other end of the tension spring is fixed in the integrated shell; a clamping buckle is convexly arranged in the middle of the indicating support, a clamping hole is formed in the middle of the hot melt sheet, the hot melt sheet is erected and arranged on the indicating support, and the clamping buckle is in clamping fit with the clamping hole; the top of integrative casing is provided with transparent window, is close to transparent window department be provided with the instruction region on the instruction support.

5. An integrated surge protector according to claim 1 or 3, wherein: an insertion row hole for inserting an external insertion row is formed in the position, close to the external connection terminal, of the integrated shell.