CN221328614U

CN221328614U - Lightning protection module and surge protector

Info

Publication number: CN221328614U
Application number: CN202323392491.2U
Authority: CN
Inventors: 倪向宇; 管林啸
Original assignee: Delixi Electric Co Ltd
Current assignee: Delixi Electric Co Ltd
Priority date: 2023-12-12
Filing date: 2023-12-12
Publication date: 2024-07-12
Anticipated expiration: 2033-12-12

Abstract

The application discloses a lightning protection module and a surge protector, and relates to the technical field of piezoelectric devices. The shell is provided with an accommodating cavity, and an indication window communicated with the accommodating cavity is formed in the shell. The pressure sensitive chip is installed on the support, is provided with first pin and the second pin that the interval set up on the pressure sensitive chip, is connected with the first pin that extends to the chamber that holds outward on the first pin, is connected with the second pin that extends to the chamber that holds outward on the second pin. The elastic piece is provided with an elastic pretightening force which enables the second pin to move towards the direction away from the second pin. The indicator is movably connected to the support, the indicator part is made of high-temperature-resistant insulating cloth and is provided with a shielding state and an indicating state, the indicator part is positioned in a shielding area between the indication window and the support in the shielding state, and the indicator is separated from the shielding area in the indicating state. The application can utilize the elastic piece to better trip the locking part of the second pin.

Description

Lightning protection module and surge protector

Technical Field

The application relates to the technical field of piezoelectric devices, in particular to a lightning protection module and a surge protector.

Background

In the related technical field, the lightning protection module is used for discharging lightning current and is generally used for safety protection of electric equipment of an electric power system. Lightning in thunderstorm weather is very dangerous and can have a great influence on our production and life.

In a communication power supply, a lightning protection device such as a lightning protection module is generally adopted to solve lightning. When encountering lightning stroke, the lightning protection module can introduce instant heavy current into the ground to release so as to ensure the safety of electric equipment.

The existing thermal disengaging mechanism of the lightning protection module generally utilizes the elastic motion of a metal trip sheet, the trip sheet is not only a current conductor but also has a trip function, the trip sheet has elastic force, annealing softening phenomenon can be caused when the metal trip sheet deforms or large current passes through the trip sheet, and then the trip sheet has insufficient elastic force, and the trip is not thorough.

Disclosure of utility model

The application provides a lightning protection module and a surge protector, which can better trip a locking part of a second pin by utilizing an elastic piece, and can pull an indicating piece by matching with the locking part through the elastic piece so as to realize synchronous display of the state change of the module after tripping.

In a first aspect, the application provides a lightning protection module comprising a housing, a bracket, a pressure sensitive chip, an elastic member and an indicator. The casing is provided with and holds the chamber, offer on the casing with hold the instruction window of chamber intercommunication. The bracket is arranged in the accommodating cavity. The pressure sensitive chip is arranged on the support and is positioned in the accommodating cavity, a first pin and a second pin which are arranged at intervals are arranged on the pressure sensitive chip, a first pin extending out of the accommodating cavity is connected to the first pin, and a second pin extending out of the accommodating cavity is connected to the second pin. The first end of the elastic piece is connected with the support, the second end of the elastic piece is connected with the second pin, and the elastic piece is provided with elastic pretightening force which enables the second pin to move towards the direction deviating from the second pin.

The indicator is movably connected to the support, at least part of the indicator is made of high-temperature-resistant insulating cloth, the indicator is provided with a shielding state and an indicating state, the indicator is partially located in a shielding area between the indicating window and the support in the shielding state, and the indicator is separated from the shielding area in the indicating state.

The second pin comprises a locking part and an inserting part which are connected, the locking part is connected with the second pin, the inserting part extends out of the accommodating cavity, and after the temperature of the connecting part of the locking part and the second pin is higher than a preset value, the locking part is separated from the second pin.

The locking part is connected with the indicating piece, after the locking part is separated from the second pin, the elastic piece drives the locking part to be far away from the second pin, and the locking part drives the indicating piece to be switched from the shielding state to the indicating state.

Based on the above example of the application, the housing can protect other components of the lightning protection module, and the components such as the bracket, the pressure sensitive chip, the elastic piece, the indicator and the like are all arranged in the accommodating cavity of the housing. The indication window arranged on the shell can be matched with the indication piece to prompt the state of the lightning protection module, and after the display state of the indication window changes, the lightning protection module is proved to have played a role and lose efficacy, and a new lightning protection module needs to be replaced.

The pressure-sensitive chip is a main functional component with a lightning protection function, and can protect lightning stroke to a certain extent, thereby protecting a circuit at the rear end. The first pin and the second pin arranged on the pressure sensitive chip can connect the pressure sensitive chip to the corresponding circuit to be protected. The first pins are specifically plugged through the first pins and connected to the corresponding circuits to be protected, and the second pins are specifically plugged through the second pins and connected to the corresponding circuits to be protected.

The elastic piece can generate elastic pretightening force of the second pin moving towards the direction deviating from the second pin, the elastic piece can specifically act on the locking part in the second pin, the locking part is welded on the second pin in a normal state, after the lightning protection module receives voltage generated by lightning stroke, the pressure sensitive chip can conduct large current, the pressure sensitive chip can continuously deteriorate, the pressure sensitive chip can continuously release heat in the deterioration process, the joint of the locking part and the second pin can generate high temperature higher than a preset value, under the action of the elastic piece, the locking part can separate from the second pin, and the locking part at the moment can deviate from the second pin and is propped against the corresponding micro switch, so that the micro switch state changes, and fault signals are given.

The locking part in the second pin can be fixedly connected to the second pin, and the locking part is separated from the second pin after the temperature of the connection part of the locking part and the second pin is higher than a preset value. The plug-in part in the second pin can be plugged in and connected to a corresponding circuit to be protected.

In the process that the elastic piece drives the locking part to be far away from the second pin, the locking part can drive the indicating piece to move, the indicating piece is switched from the shielding state to the indicating state, and the corresponding indicating window is displayed as a fault state.

In some examples, a first runner is provided in a region of the bracket that is shielded, and an end of the indicator that is remote from the locking portion is slidably coupled in the first runner.

In the initial state of the lightning protection module, the indicator part is bent and connected into the first chute in a sliding manner, and the indicator part in the first chute shields the indication window.

According to the lightning protection device, the first sliding groove can improve the connection stability of the indicator in the shielding area, the indicator is partially bent and slidingly connected into the first sliding groove in the initial state of the lightning protection module, the indicator can be bent at will due to the fact that the indicator is at least partially of a flexible structure such as high-temperature-resistant insulating cloth, the indicator window can be shielded through the portion of the indicator in the first sliding groove, after the lightning protection module is excited, the locking part is far away from the second pin, the indicator connected with the locking part is pulled out of the first sliding groove under the action of the locking part, and after at least a part of indicator is not in the first sliding groove, the indicator is switched from the shielding state to the indicating state.

In some examples, a second chute is provided on a side of the bracket, and the middle part of the indicator is slidably connected to the second chute.

Based on the above example of the present application, the second chute can further improve the connection stability of the indicator. The accidental disengagement of the indicator from the bracket is reduced or even avoided.

In some examples, the first runner is defined by two spaced apart first ribs, with a portion of the indicator being between the two first ribs.

The second sliding groove is formed by encircling two second ribs arranged at intervals, and part of the indicating piece is positioned between the two second ribs.

Based on the above example of the present application, the two first ribs arranged at intervals can better enclose the first chute, so as to facilitate the sliding connection between the first chute and the indicator. Two second beads that the interval set up can enclose into the second spout better, make things convenient for the sliding connection of first spout and indicator.

In some examples, a first flange is disposed on a side of the first rib away from the bracket, the first flange turns towards a middle position of the first chute, the first flange and the first rib cooperate to form a first limit groove, and a part of the indicator is disposed in the first chute and slidingly connected to the first limit groove.

One side of the second rib, which is away from the bracket, is provided with a second flanging, the second flanging is turned towards the middle position of the second chute, the second flanging is matched with the second rib to form a second limit groove, and part of the indicator is positioned in the second chute and is in sliding connection with the second limit groove.

Based on the above example of the present application, the first flange may further form a first limiting groove in the first chute, and the indication member may be further limited by the first limiting groove. The first chute and the indicator that slide relatively have the cooperation of first spacing groove to be difficult to break away from in the first chute, have further improved the stability of connection. Each first rib is provided with a first flanging. The second flanging can further form a second limiting groove in the second sliding groove, and the indication piece can be further limited through the second limiting groove. The second spout and the indicator that slide relatively have the cooperation of second spacing groove to be difficult to break away from in the second spout, have further improved the stability of connection. And each second convex rib is provided with a second flanging.

In some examples, the indicator includes a movable portion and a shielding portion that are connected, the movable portion is movably connected with the support, one end of the movable portion is connected with the locking portion, the shielding portion is disposed at one end of the movable portion, which is away from the locking portion, the shielding portion is adapted to the indication window, and the shielding portion can shield or keep away from a shielding area between the indication window and the support.

In some examples, the thickness of the high temperature resistant insulating cloth is a,0.2 mm.ltoreq.a.ltoreq.0.5 mm.

Based on the above example of the application, the indicator can be made thinner, and the original thermoplastic material with the thickness of 1-1.2mm is changed into high-temperature resistant insulating cloth with the thickness of 0.2-0.5 mm, so that the lightning protection module can be further reduced.

In some examples, the high temperature resistant insulating cloth has a temperature resistance of greater than or equal to 150 ℃.

Based on the above example of the application, the high-temperature-resistant insulating cloth has better performance, is not easy to fail at high temperature, is not easy to have potential safety hazards such as combustion, and has higher safety.

In some examples, a hook is provided on the locking portion, a hooking hole adapted to the hook is provided on the indicator, and the hook is hooked on the hooking hole.

The indicator is high-temperature-resistant insulating cloth integrally arranged, and the hanging hole is arranged at the position of the indicator, which is close to the locking part; or the indicator comprises a first connecting piece and a second connecting piece which are connected with each other, the first connecting piece is provided with the hanging hole, and the temperature resistance of the first connecting piece is larger than that of the second connecting piece.

Based on the above example of the application, the locking portion and the indicator can be better connected by the engagement of the hitching. The hanging mode can be more convenient. The connection between the locking portion and the indicator may be set in other ways as desired.

In a second aspect, the application provides a surge protector, which comprises a base, a micro switch and the lightning protection module. The base is provided with a mounting cavity. A microswitch is mounted within the mounting cavity.

The lightning protection module is inserted into the installation cavity through the first pins and the second pins, and one side, close to the micro switch, of the lightning protection module is provided with an avoidance hole. The control rod of the microswitch is arranged in the avoidance hole in a penetrating mode and is arranged with the locking part at intervals, and after the locking part is separated from the second pin, the locking part presses the control rod.

Based on the above example of the application, the surge protector with the upper lightning protection module can better trip the locking part of the second pin by using the elastic piece, and can pull the indicating piece by matching with the locking part by using the elastic piece, so that the state change of the synchronous display module after tripping is realized.

Drawings

In order to more clearly illustrate the application or the technical solutions of the prior art, the drawings which are used in the examples or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some examples of the application and that other drawings can be obtained from them without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of a lightning protection module according to an example of the present application;

FIG. 2 is a schematic diagram of a lightning protection module in an example of the application, after both a housing and an indicator are hidden, showing one side of a pressure sensitive chip;

FIG. 3 is an enlarged schematic view of the indicator in the lightning protection module according to an example of the present application, illustrating the structure A in FIG. 2 in a shielded state;

FIG. 4 is a schematic perspective view of an indicator in a lightning protection module according to an embodiment of the present application;

FIG. 5 is a schematic plan view of a lightning protection module according to an embodiment of the present application, in which the indicator is in an indicating state;

FIG. 6 is a schematic perspective view of an indicator in an exemplary lightning protection module according to the present application in an indicating state;

FIG. 7 is a schematic view of a single indicator in a occluded state according to an example of the present application;

FIG. 8 is a schematic view of a single indicator in an indicating state according to an example of the present application;

FIG. 9 is a schematic diagram of a second pin of the lightning protection module according to an example of the present application;

FIG. 10 is a schematic view of a first pin of a lightning protection module according to an example of the present application;

FIG. 11 is a schematic view showing the structure of the indicator in a split arrangement according to an example of the present application.

Reference numerals:

100. A housing; 110. an indication window; 120. a clamping hole; 130. a sliding connection part; 140. an anti-slip structure; 200. a bracket; 210. a first chute; 211. a first rib; 2111. a first flanging; 212. a first limit groove; 220. a first mounting groove; 221. a first limiting hole; 230. a second mounting groove; 231. a second limiting hole; 240. a third limiting hole; 250. a buckle; 260. a second positioning portion; 270. a second chute; 271. a second rib; 300. a pressure sensitive chip; 310. a first pin; 320. a second pin; 400. an elastic member; 500. an indicator; 510. a movable part; 511. a hanging hole; 520. a shielding part; 530. a first connector; 540. a second connector; 700. a first pin; 710. a first limit part; 800. a second pin; 810. a locking part; 811. a hook; 812. a first positioning portion; 820. a plug-in part; 830. and a second limiting part.

Detailed Description

The application will be further described in detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the application more apparent. It should be understood that the specific examples described herein are for purposes of illustration only and are not intended to limit the scope of the application.

In order to solve the above-mentioned technical problems, please refer to fig. 1 to 10, a lightning protection module is provided in a first aspect of the present application, which can utilize an elastic member 400 to better trip a locking portion 810 of a second pin 800, and can pull an indicator 500 through the elastic member 400 in cooperation with the locking portion 810 to realize a synchronous display of a state change of the module after the trip.

Referring to fig. 1 to 10, in some examples of the present application, the lightning protection module includes a housing 100, a bracket 200, a pressure sensitive chip 300, an elastic member 400, and an indicator 500. The shell 100 is provided with a containing cavity, and an indication window 110 communicated with the containing cavity is formed in the shell 100. The bracket 200 is installed in the receiving chamber. The pressure sensitive chip 300 is mounted on the bracket 200 and is located in the accommodating cavity, a first pin 310 and a second pin 320 are arranged on the pressure sensitive chip 300 at intervals, a first pin 700 extending out of the accommodating cavity is connected to the first pin 310, and a second pin 800 extending out of the accommodating cavity is connected to the second pin 320. The first end of the elastic member 400 is connected with the bracket 200, the second end is connected with the second pin 800, and the elastic member 400 has an elastic pre-tightening force that enables the second pin 800 to move towards and away from the second pin 320.

The indicator 500 is movably connected to the support 200, at least part of the indicator 500 is made of high temperature resistant insulating cloth, the indicator 500 has a shielding state and an indication state, in the shielding state, the indicator 500 is partially located in a shielding area between the indication window 110 and the support 200, and in the indication state, the indicator 500 is separated from the shielding area.

The second pin 800 includes a locking portion 810 and a plugging portion 820, where the locking portion 810 is connected to the second pin 320, the plugging portion 820 extends out of the accommodating cavity, and after the temperature at the connection between the locking portion 810 and the second pin 320 is higher than a preset value, the locking portion 810 is separated from the second pin 320.

The locking portion 810 is connected to the indicator 500, after the locking portion 810 is separated from the second pin 320, the elastic member 400 drives the locking portion 810 to be away from the second pin 320, and the locking portion 810 drives the indicator 500 to switch from the shielding state to the indicating state.

Based on the above examples of the present application, the housing 100 may protect other components of the lightning protection module, and the bracket 200, the pressure sensitive chip 300, the elastic member 400, the indicator 500, and the like are all installed in the receiving cavity of the housing 100. The indication window 110 arranged on the shell 100 can be matched with the indication piece 500 to prompt the state of the lightning protection module, and after the display state of the indication window 110 changes, the lightning protection module is proved to have played a role and lose efficacy, and a new lightning protection module needs to be replaced.

The pressure-sensitive chip 300 is a main functional component with a lightning protection function, and the pressure-sensitive chip 300 can protect lightning strokes to a certain extent, so that a circuit at the rear end is protected. The first pin 310 and the second pin 320 provided on the pressure sensitive chip 300 may connect the pressure sensitive chip 300 to a corresponding circuit to be protected. The first pin 310 is plugged and connected to a corresponding circuit to be protected, in particular by the first pin 700, and the second pin 320 is plugged and connected to a corresponding circuit to be protected, in particular by the second pin 800.

The elastic piece 400 can generate elastic pretightening force of the second pin 800 moving towards the direction deviating from the second pin 320, and can specifically act on the locking part 810 in the second pin 800, the locking part 810 is welded on the second pin 320 in a normal state, when the lightning protection module receives voltage generated by lightning stroke, the pressure sensitive chip 300 can conduct large current, the pressure sensitive chip 300 can continuously deteriorate, the pressure sensitive chip 300 can continuously release heat in the deterioration process, thus the joint of the locking part 810 and the second pin 320 can generate high temperature higher than a preset value, under the action of the elastic piece 400, the locking part 810 can deviate from the second pin 320, and at the moment, the locking part 810 can deviate from the second pin 320 and butt against the corresponding micro switch, so that the micro switch state changes, and fault signals are given.

The locking portion 810 of the second pin 800 may be fixedly connected to the second pin 320, and the locking portion 810 is separated from the second pin 320 after the temperature at which the locking portion 810 is connected to the second pin 320 is higher than a preset value. The plug portion 820 of the second pin 800 may be plugged and connected to a corresponding circuit to be protected.

In the process that the elastic member 400 drives the locking portion 810 to move away from the second pin 320, the locking portion 810 drives the indicator 500 to move, and the indicator 500 is switched from the shielding state to the indicating state, and the corresponding indication window 110 is displayed as a fault state.

The embodiment of the application can utilize the elastic piece 400 to better trip the locking part 810 of the second pin 800, and can cooperate with the locking part 810 to pull the indicator 500 through the elastic piece 400, so that the state change of the synchronous display module after tripping is realized. In the prior art, the locking part 810 can be a metal spring plate, which is not only a current conductor but also has a tripping function, but when the lightning protection module fails due to short circuit caused by excessive lightning stroke or transient overvoltage of the power grid, after the short circuit current of the power grid flows through the lightning protection module, a high temperature can be generated to anneal the metal spring plate corresponding to the locking part, so that the elasticity of the metal spring plate is reduced and even fails, and the metal spring plate can not be disconnected at all because of the reduction of the disconnection distance of the metal spring plate. Meanwhile, the metal spring plate cannot be pressed on the corresponding micro switch due to insufficient disengaging distance. The circuit can not be safely cut off after the lightning protection module fails in a short circuit, and the micro switch with the remote signaling function can not be accurately triggered, so that fault prompt can be given. And also can cause the condition that the indicator indicates the inefficacy, make the user fail to change effectual lightning protection module in time, there is great potential safety hazard. The lightning protection module of the application does not have the defects.

The fault state refers to the state after the lightning protection module is deteriorated and the module is in thermal tripping failure, and the corresponding circuit to be protected can still work normally under the protection of the lightning protection module only after the lightning protection module fails in fault.

The voltage sensitive chip 300 is an element with transient voltage suppression function, and when the voltage applied to the voltage sensitive chip 300 exceeds a certain value, the resistance value of the voltage sensitive chip is rapidly reduced to conduct large current and protect a back-end circuit; when the voltage is lower than the working voltage, the resistance value of the pressure-sensitive chip 300 is extremely high, which is equivalent to open circuit, and the working state of the back-end circuit is not affected.

The micro switch can be replaced by a tact switch, and after the locking part 810 is separated from the second pin 320, the locking part can be pressed to the micro switch or a trigger ejector rod of the tact switch under the driving of the elastic part 400, so that after the pressure sensitive chip 300 fails in a tripping manner, a fault signal is triggered through the state change of the micro switch or the tact switch, and an indication is provided for remote monitoring.

Referring to fig. 2 and 3, in some examples of the present application, a first sliding groove 210 is provided in a shielding area of the bracket 200, and an end of the indicator 500 remote from the locking portion 810 is slidably coupled to the first sliding groove 210.

In the initial state of the lightning protection module, the indicator 500 is partially bent and slidingly connected to the first sliding groove 210, and the indicator 500 located in the first sliding groove 210 partially shields the indication window 110.

Based on the above-mentioned example of the present application, the first chute 210 may improve the connection stability of the indicator 500 in the shielding area, in the initial state of the lightning protection module, the indicator 500 is partially bent and slidingly connected into the first chute 210, because the indicator 500 is at least partially of a flexible structure such as a high temperature resistant insulating cloth, the indicator 500 may be optionally bent, the portion of the indicator 500 located in the first chute 210 may shield the indicator window 110, after the lightning protection module is excited, the locking portion 810 may be far away from the second pin 320, the indicator 500 connected with the locking portion 810 may be pulled out from the first chute 210 under the action of the locking portion 810, and after at least a portion of the indicator 500 does not exist in the first chute 210, the indicator 500 is switched from the shielding state to the indicating state.

Referring to fig. 4, in some examples of the present application, a second sliding groove 270 is provided at a side of the bracket 200, and a middle portion of the indicator 500 is slidably coupled to the second sliding groove 270.

Based on the above example of the present application, the second sliding groove 270 may further improve the connection stability of the indicator 500. The accidental disengagement of the indicator 500 from the bracket 200 is reduced or even avoided.

In some examples of the present application, the first chute 210 is formed by enclosing two first ribs 211 disposed at intervals, and a portion of the indicator 500 is located between the two first ribs 211.

The second runner 270 is formed by enclosing two second ribs 271 spaced apart, and a portion of the indicator 500 is disposed between the two second ribs 271.

Based on the above example of the present application, the two first ribs 211 spaced apart from each other can better enclose the first sliding groove 210, so as to facilitate the sliding connection between the first sliding groove 210 and the indicator 500. The two second ribs 271 arranged at intervals can better enclose the second runner 270, facilitating the sliding connection of the first runner 270 with the indicator 500.

Referring to fig. 2 to 4, in some examples of the present application, a first flange 2111 is provided on a side of the first rib 211 facing away from the bracket 200, the first flange 2111 is turned towards a middle position of the first chute 210, and the first flange 2111 cooperates with the first rib 211 to form a first limit groove 212, and a part of the indicator 500 is located in the first chute 210 and slidingly connected to the first limit groove 212.

The second flange is provided at a side of the second rib 271 facing away from the bracket 200, and turned towards the middle of the second chute 270, and the second flange cooperates with the second rib 271 to form a second limit slot, and part of the indicator 500 is located in the second chute 270 and slidingly connected to the second limit slot.

Based on the above example of the present application, the first flange 2111 may further form a first limiting groove 212 in the first chute 210, and the indicator 500 may be further limited by the first limiting groove 212. The first sliding groove 210 and the indicator 500 that slide relatively have the first limit groove 212 that is not easy to disengage from the first sliding groove 210, so that the stability of connection is further improved. A first rim 2111 is provided on each first rib 211. The second flange may further form a second limiting groove 272 in the second chute 270, and the indicator 500 may be further limited by the second limiting groove 272. The second sliding groove 270 and the indicator 500 which slide relatively have the second limit groove 272 which is not easy to separate from the second sliding groove 270, so that the stability of connection is further improved. A second flange is provided on each of the second ribs 271.

Referring to fig. 4 to 8, in some examples of the present application, the indicator 500 includes a movable portion 510 and a shielding portion 520 that are connected, the movable portion 510 is movably connected to the bracket 200, one end of the movable portion 510 is connected to the locking portion 810, the shielding portion 520 is disposed at an end of the movable portion 510 facing away from the locking portion 810, the shielding portion 520 is adapted to the indicator window 110, and the shielding portion 520 can shield or be far away from a shielding area between the indicator window 110 and the bracket 200.

In some examples of the application, the thickness of the high temperature resistant insulating cloth is a,0.2 mm.ltoreq.a.ltoreq.0.5 mm.

Based on the above example of the present application, the indicator 500 can be made thinner, and the original thermoplastic material with the thickness of 1-1.2mm is changed into the high temperature resistant insulating cloth with the thickness of 0.2-0.5 mm, so that the lightning protection module can be further reduced. The original indicator piece can rotate only under the drive of the spring after the tripping piece acts. After improvement, the tripping device is not required to be driven by a spring, and is driven by a tripping piece directly, so that the tripping device is simplified. Meanwhile, the driving distance caused by deformation or damage of the U-shaped spring is not enough, so that hidden danger of accurate indication cannot be realized.

The first pin 700 and the elastic member 400 of the present application cooperate to form a thermal trip mechanism, which may be disposed on the same plane as the pressure sensitive chip 300, so that the thickness dimension of the lightning protection module may not be increased due to the arrangement of the thermal trip mechanism, and the thickness of the entire lightning protection module may be reduced. The protruding height of the second protruding edge 271 corresponding to the indicator 500 can be 1mm plus or minus 0.2mm, the thickness of the lightning protection module can be reduced to the range of 13mm plus or minus 0.5mm, compared with the condition that the thickness of the lightning protection module is increased by the thermal tripping mechanism in the prior art, the lightning protection module of the conventional surge protector can be 18mm, the thickness of the module can be reduced by 5mm, the thickness of the lightning protection module can be 13mm, the installation space of the lightning protection module is further saved, the cost is reduced, and the thermal tripping mechanism is novel in structure and simple and reliable.

And, after the indicator 500 sets up at least part and is high temperature resistant insulating cloth, can also further reduce the height of lightning protection module, further saved the installation space and the reduce cost of lightning protection module, reduce the holistic volume of lightning protection module.

In some examples of the application, the high temperature resistant insulating cloth has a temperature resistance of greater than or equal to 150 ℃.

In some examples of the present application, the locking portion 810 is provided with a hook 811, the indicator 500 is provided with a hooking hole 511 adapted to the hook 811, and the hook 811 is hooked on the hooking hole 511.

The indicator 500 is a high temperature resistant insulating cloth integrally provided, and the hooking hole 511 is provided at a position of the indicator 500 near the locking part 810; or the indicator 500 includes a first connection member 530 and a second connection member 540 connected to each other, wherein the first connection member 530 is provided with a coupling hole 511, and the first connection member 530 is resistant to the temperature Wen Dayu and the second connection member 540 is resistant to the temperature.

Based on the above-described example of the present application, the locking portion 810 and the indicator 500 can be better connected by the coupling engagement. The hanging mode can be more convenient.

The indicator 500 can be the high temperature resistant insulating cloth that an organic whole set up, through setting up the indicator 500 wholly into high temperature resistant insulating cloth after, can be that the whole of indicator 500 all has higher temperature resistant, guarantees the safety and effectiveness of indicator 500, and the setting of hanging hole 511 is close to the position of locking portion 810 at the indicator 500, can carry out the adaptation with locking portion 810 better and be connected.

The indication member 500 may also be separately provided, the first connection member 530 may be connected to the locking portion 810, the second connection member 540 may be a functional portion of the indication member 500 for indication, and the hanging hole 511 of the first connection member 530 may be hung on the hook 811 of the locking portion 810, referring to fig. 11.

Since most of the temperature of the pressure sensitive chip 300 is concentrated at the connection between the locking portion 810 and the second pin 320 during the degradation process, after the indicator 500 is separated into the first connector 530 and the second connector 540, the temperature resistance of the second connector 540 of the first connector 530 can be properly increased by Wen Dayu, the first connector 530 can be a plastic part with a temperature resistance of 150 ℃ or more, the second connector 540 can be a high-temperature-resistant insulating cloth with a relatively low temperature resistance requirement, and the temperature resistance of the high-temperature-resistant insulating cloth at this time can be set at 100 ℃ to 150 ℃, and even the high-temperature-resistant insulating cloth can be replaced by a common insulating cloth. It is also possible to provide only the shielding portion 520 as an insulating cloth and the remaining portion as a plastic member.

The first connecting member 530 and the second connecting member 540 may be connected by a hanging connection, a clamping connection, a welding connection, a fixing connection, or the like.

The connection between the locking portion 810 and the indicator 500 may be other manners, such as a clamping connection, a fixing connection, etc., and the fixing connection may be a screw connection, a rivet connection, etc.

Referring to fig. 4-6, 10, in some examples of the application, the locking portion 810 is integrally provided with the mating portion 820, the locking portion 810 is angularly disposed with respect to the mating portion 820, and a position of the locking portion 810 away from the mating portion 820 is connected with the second pin 320.

Based on the above example of the present application, the integrally provided second pin 320 may have higher connection stability, the locking portion 810 is in a conductive sheet structure, and after the locking portion 810 is separated from the second pin 320, the elastic pre-tightening force of the elastic member 400 may drive the locking portion 810 to deform and move in a direction away from the second pin 320 until the locking portion is abutted to the trigger push rod on the corresponding micro switch, so that the state of the micro switch is changed, and a fault signal is given.

The structure selection accessories such as the micro switch and the like which are matched with the lightning protection module can be matched with the lightning protection module to set the matched micro switch under the condition that a remote monitoring function is needed; the micro-switch lamp structure can be omitted according to the requirement, and the surge protector corresponding to the lightning protection module has no remote monitoring function. Specifically, whether a micro switch and other structures are additionally arranged is selected according to actual needs.

The locking portion 810 may be connected to the second pin 320 by soldering with a low melting point tin, and the pressure sensitive chip may continuously generate heat when a short circuit fault is caused by degradation or transient overvoltage, and transfer heat through the second pin 320, and after the temperature of the connection position between the locking portion 810 and the second pin 320 is higher than the melting point of the low melting point tin, the low melting point tin melts, and the locking portion 810 may be far away from the second pin 320 under the action of the first elastic member 400. The melting point of the low-melting-point soldering tin can correspond to a preset value of the temperature of the application, and the specific preset value is adjusted and changed according to the melting point of the low-melting-point soldering tin.

The locking portion 810 may be configured as a metal spring, so that the locking portion 810 is more easily separated from the second pin 320 under the action of dual spring force.

The first pin 700 may be partially embedded in the first mounting groove 220, the groove bottom of the first mounting groove 220 may be provided with a first limiting hole 221, and a first limiting portion 710 capable of filling the first limiting hole 221 extends from a corresponding side wall of the first pin 700.

The second pin 800 may be disposed in a corresponding second mounting groove 230 at a position where the second pin 800 is connected to the bracket 200, the second pin 800 may be partially embedded in the second mounting groove 230, a second limiting hole 231 may be formed at a bottom of the second mounting groove 230, and a second limiting portion 830 capable of being filled into the second limiting hole 231 may extend from a corresponding side wall of the second pin 800.

The second pin 320 may be connected to the bracket 200 by a corresponding third limiting hole 240, and the second pin 320 is bent and inserted into the third limiting hole 240. The bent second pins 320 can be in surface contact with the locking portions 810, and have higher connection stability after being connected by soldering.

In some examples of the present application, the locking portion 810 is provided separately from the plugging portion 820, a first end of the locking portion 810 is fixed on the bracket 200, a second end of the locking portion 810 is a free end, and the second pin 320 is connected to the locking portion 810 near the free end.

The first end of the plugging portion 820 is fixedly connected to the bracket 200, the second end of the plugging portion 820 extends to the outside of the receiving cavity, and the locking portion 810 is connected to the plugging portion 820 through the flexible conductor 830.

Based on the above example of the present application, the locking portion 810 and the plugging portion 820 that are separately provided may have a greater flexibility in assembly, and may more reasonably utilize the layout space in the accommodating cavity, thereby reducing the overall assembly space of the lightning protection module. The first end of the locking portion 810 may be fixed to the bracket 200, so that the locking portion 810 is separated from the second pin 320 only by being separated from the free end, and the whole locking portion 810 is not separated from the second pin 320. The second end of the locking portion 810 is a free end, and can be better matched with the second pin 320, the locking portion 810 can have a certain elastic deformation range, and when the locking portion 810 is separated from the second pin 320 after the elastic member 400 is combined, the second end of the locking portion 810 can elastically deform by taking the position of the first end as a fulcrum. The locking portion 810 is connected with the plugging portion 820 through the flexible conductor 830, so that the locking portion 810 and the plugging portion 820 can be exploded to be conductive, and a lightning stroke circuit can be led to the pressure sensitive chip 300.

The locking portion 810 and the plugging portion 820 may be made of different materials as needed, for example, the locking portion 810 may be made of spring steel.

The second pin 800 of the present application may be made of phosphor copper or beryllium bronze, whether it is integrally or separately provided. When the second pin 800 is integrally provided, the materials of the locking portion 810 and the socket portion 820 may be the same. When the second pin 800 is separately provided, the materials of the locking portion 810 and the plugging portion 820 may be different, wherein the locking portion 810 may be made of phosphor copper or beryllium bronze, and the plugging portion 820 may be made of a common electrical conductor. The second pin 800 may be made of other elastic materials such as spring steel.

In some examples of the present application, the elastic member 400 is a spring, the locking portion 810 is provided with a first positioning portion 812 adapted to the spring, and the bracket 200 is provided with a second positioning portion 260 adapted to the spring.

Based on the above example of the present application, the spring may have higher stability, the first positioning portion 812 may position the first end of the spring, the second positioning portion 260 may position the second end of the spring, and both ends of the spring may be limited by the cooperation of the first positioning portion 812 and the second positioning portion 260, so that the situation that the spring is separated may be reduced or even prevented.

The first positioning portion 812 and the second positioning portion 260 may be provided in a column structure, and an end portion of the spring may be sleeved outside the column structure. The first positioning portion 812 and the second positioning portion 260 may be provided in a groove-like structure, and the end portion of the spring may be mounted inside the groove-like structure. The spring can be positioned only by the positioning of the spring, so that the spring can be prevented from falling off.

In some examples of the present application, the indication window 110 is displayed in a color of the indication member 500 when the indication member 500 is in the blocking state, and the indication window 110 is displayed in a color of a corresponding region of the stand 200 when the indication member 500 is in the indicating state. The color of the holder 200 is different from that of the shielding part 520 in the indicator 500, or the color of the region of the holder 200 corresponding to the indication window 110 is set to be different from that of the shielding part 520.

Based on the above example of the present application, the color displayed by the indication window 110 is specifically the color of the bracket 200 or the color of the indicator 500, when the indicator 500 is in the blocking state, the blocking portion 520 of the indicator 500 will block the indication window 110, and thus only the color of the indicator 500 can be seen through the indication window 110, and when the indicator 500 is in the indicating state, the blocking portion 520 of the indicator 500 will not block the indication window 110, so that the color of the corresponding region of the bracket 200 can be seen from the indication window 110. The color of the region corresponding to the bracket 200 and the color of the shielding part 520 are set to be two different colors which are easily distinguished, or the color of the region corresponding to the bracket 200 and the color of the shielding part 520 are set to be two different colors which are easily distinguished.

The indicator 500 and the bracket 200 may be made in two distinct colors that are more conspicuous. Such as the red color of the bracket 200, the indicator 500 is green. The stand 200 may be set to black and the indicator 500 may be set to white. Alternatively, the stand 200 may be set blue, the indicator 500 orange, etc. Different color combinations can be adopted as required, so long as users or staff can more easily perform the respective operation.

In some examples of the present application, the bracket 200 is clamped in the housing 100, the outer circumferential surface of the bracket 200 is provided with a buckle 250, and the housing 100 is provided with a clamping hole 120 adapted to the buckle 250. Or the outer circumferential surface of the bracket 200 is provided with a clamping hole 120, and the shell 100 is provided with a buckle 250 matched with the buckle 250.

Based on the above example of the present application, the snap 250 may achieve the relative snap of the housing 100 and the bracket 200 through the cooperation with the snap hole 120. The buckle 250 may be disposed on the bracket 200, and the housing 100 is correspondingly provided with the clamping hole 120, or the buckle 250 may be disposed on the housing 100, and the bracket 200 is correspondingly provided with the clamping hole 120. The drawings illustrate an example of the snap 250 being provided on the bracket 200.

In a second aspect, the application provides a surge protector, which comprises a base, a micro switch and the lightning protection module. The base is provided with a mounting cavity. The micro-switch is arranged in the installation cavity.

The lightning protection module is inserted into the installation cavity through the first pins 700 and the second pins 800, and an avoidance hole is formed in one side, close to the micro switch, of the lightning protection module. The control rod of the micro switch is arranged in the avoidance hole in a penetrating way and is arranged at intervals with the locking part 810, and after the locking part 810 is separated from the second pin 320, the locking part 810 presses the control rod.

Based on the above example of the present application, the surge protector with the upper lightning protection module can better trip the locking part 810 of the second pin 800 by using the elastic member 400, and can pull the indicating member by matching with the locking part by using the elastic member, so as to realize the synchronous display of the state change of the module after trip.

Specifically, the elastic member 400 may generate an elastic pre-tightening force that the second pin 800 moves towards a direction away from the second pin 320, and may specifically act on the locking portion 810 in the second pin 800, where the locking portion 810 is welded on the second pin 320 in a normal state, after the lightning protection module receives a voltage generated by lightning strike, the pressure sensitive chip 300 will conduct a large current, the pressure sensitive chip 300 will continuously deteriorate, the pressure sensitive chip 300 will continuously release heat during the degradation process, so that a connection position between the locking portion 810 and the second pin 320 will generate a high temperature higher than a preset value, and under the action of the elastic member 400, the locking portion 810 will separate from the second pin 320, and at this time, the locking portion 810 will deviate from the second pin 320 and abut against a corresponding micro switch, so that the micro switch state changes, giving out a fault signal.

The outer peripheral surface of the housing 100 may be provided with a sliding connection portion 130 such as a sliding groove or a sliding rail, as needed, and the inner wall of the mounting chamber on the corresponding base is provided with a corresponding sliding rail or sliding groove. The sliding connection 130 is eccentrically disposed with respect to the structure of the housing 100, so that the housing 100 can be turned forward and backward, and the lightning protection module cannot be reversely assembled.

An anti-slip structure 140 may be provided on the outer circumferential surface of the housing 100 as needed to facilitate the disassembly and assembly of the lightning protection module. The anti-slip structure 140 may be a protective groove, a non-slip protrusion or a protective pattern, and a suitable protective structure is selected according to the requirement.

The same or similar reference numbers in the drawings correspond to the same or similar components; in the description of the present application, it should be understood that, if there is an azimuth or positional relationship indicated by terms such as "upper", "lower", "left", "right", etc., based on the azimuth or positional relationship shown in the drawings, it is only for convenience of describing the present application and simplifying the description, but it is not indicated or implied that the apparatus or element referred to must have a specific azimuth, be constructed and operated in a specific azimuth, and thus terms describing the positional relationship in the drawings are merely illustrative and should not be construed as limitations of the present patent, and specific meanings of the terms described above may be understood by those skilled in the art according to specific circumstances.

The foregoing is illustrative of the present application and is not to be construed as limiting thereof, but rather as various modifications, equivalent arrangements, improvements, etc., which fall within the spirit and principles of the present application.

Claims

1. A lightning protection module, comprising:

The shell is provided with a containing cavity, and an indication window communicated with the containing cavity is formed in the shell;

The bracket is arranged in the accommodating cavity;

The pressure-sensitive chip is arranged on the bracket and is positioned in the accommodating cavity, a first pin and a second pin which are arranged at intervals are arranged on the pressure-sensitive chip, the first pin is connected with a first pin extending out of the accommodating cavity, and the second pin is connected with a second pin extending out of the accommodating cavity;

The first end of the elastic piece is connected with the bracket, the second end of the elastic piece is connected with the second pin, and the elastic piece is provided with elastic pretightening force which enables the second pin to move towards the direction deviating from the second pin;

The indicator is movably connected to the bracket, at least part of the indicator is high-temperature-resistant insulating cloth, the indicator is provided with a shielding state and an indicating state, in the shielding state, the indicator is partially positioned in a shielding area between the indication window and the bracket, and in the indicating state, the indicator is separated from the shielding area;

The second pin comprises a locking part and an inserting part which are connected, the locking part is connected with the second pin, the inserting part extends out of the accommodating cavity, and the locking part is separated from the second pin after the temperature of the connecting part of the locking part and the second pin is higher than a preset value;

2. The lightning protection module according to claim 1, wherein a first chute is provided in a shielding region on the bracket, and an end of the indicator remote from the locking portion is slidably connected in the first chute;

3. The lightning protection module according to claim 2, wherein a second chute is provided on a side of the bracket, and the middle of the indicator is slidably connected to the second chute.

4. The lightning protection module according to claim 3, wherein the first chute is formed by encircling two first ribs arranged at intervals, and a part of the indicator is positioned between the two first ribs;

5. The lightning protection module according to claim 4, wherein a first flanging is arranged on one side of the first rib, which faces away from the bracket, and the first flanging is turned towards the middle position of the first chute, the first flanging is matched with the first rib to form a first limit groove, and part of the indicator is positioned in the first chute and is connected with the first limit groove in a sliding manner;

6. The lightning protection module according to claim 1, wherein the indicator comprises a movable portion and a shielding portion, the movable portion is movably connected with the support, one end of the movable portion is connected with the locking portion, the shielding portion is arranged at one end of the movable portion, which is away from the locking portion, the shielding portion is adapted to the indication window, and the shielding portion can shield or be far away from a shielding area between the indication window and the support.

7. The lightning protection module according to any one of claims 1 to 6, wherein the thickness of the high temperature resistant insulating cloth is a,0.2mm < a < 0.5mm.

8. The lightning protection module according to any one of claims 1 to 6, wherein the high temperature resistant insulating cloth has a temperature resistance of 150 ℃ or more.

9. The lightning protection module according to any one of claims 1 to 6, wherein a hook is provided on the locking portion, a hooking hole adapted to the hook is provided on the indicator, and the hook is hooked on the hooking hole;

The indicator is high-temperature-resistant insulating cloth integrally arranged, and the hanging hole is arranged at the position of the indicator, which is close to the locking part; or alternatively

The indicator comprises a first connecting piece and a second connecting piece which are connected with each other, the first connecting piece is provided with the hanging hole, and the temperature resistance of the first connecting piece is larger than that of the second connecting piece.

10. A surge protector device, comprising:

the base is provided with an installation cavity;

The microswitch is arranged in the mounting cavity; the method comprises the steps of,

The lightning protection module according to any one of claims 1 to 9, wherein the lightning protection module is inserted into the installation cavity through the first pin and the second pin, and a avoidance hole is formed in one side, close to the micro switch, of the lightning protection module;

The control rod of the microswitch is arranged in the avoidance hole in a penetrating mode and is arranged with the locking part at intervals, and after the locking part is separated from the second pin, the locking part presses the control rod.