CN117691556A - Lightning protection module and surge protector - Google Patents

Abstract

The application discloses lightning protection module and surge protector relates to piezoelectric device technical field, and lightning protection module includes casing, support, pressure sensitive chip, first elastic component, indicator, second elastic component, and the second is participated in including the locking part and the grafting portion that are connected, and locking part is connected with the second pin, and grafting portion extends to and holds the chamber outside, and locking part and second pin junction's temperature is higher than after predetermineeing the value, and locking part breaks away from the second pin. The locking part is provided with a clamping protrusion which is clamped with the indicator, and the indicator is maintained in a shielding state by the clamping protrusion. After the locking part is separated from the second pin, the first elastic piece drives the locking part to be far away from the second pin, the clamping protrusion and the indicating piece are released from clamping, and the second elastic piece drives the indicating piece to be switched from the shielding state to the indicating state. The locking part of the second pin can be tripped better by utilizing the first elastic piece.

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 Invention

The application provides a lightning protection module and surge protector, it can utilize first elastic component to trip the locking part of second pin better to can realize the synchronous display module state change after the tripping through first elastic component and second elastic component linkage cooperation.

In a first aspect, the application provides a lightning protection module, including casing, support, pressure sensitive chip, first elastic component, indicator, second elastic component, the casing is provided with and holds the chamber, set up 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 first elastic piece is connected with the support, the second end of the first elastic piece is connected with the second pin, and the first elastic piece has 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, the indicator is provided with a shielding state and an indicating state, in the shielding state, the indicator part is positioned in a shielding area between the indication window and the support, and in the indicating state, the indicator is separated from the shielding area. The first end of the second elastic piece is connected with the support, the second end of the second elastic piece is connected with the indicating piece, and the second elastic piece has elastic pretightening force for driving the indicating piece to be far away 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 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 provided with a clamping protrusion which is clamped with the indicator, and the indicator is maintained to be in a shielding state by the clamping protrusion.

After the locking part is separated from the second pin, the first elastic piece drives the locking part to be far away from the second pin, the clamping protrusion and the indicating piece are released from clamping, and the second elastic piece drives the indicating piece to be switched from the shielding state to the indicating state.

Based on the above-mentioned example of this application, the casing can protect other parts of lightning protection module, and parts such as support, pressure sensitive chip, first elastic component, indicator, second elastic component are all installed in the holding intracavity of casing. 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 first elastic piece can generate elastic pretightening force of the second pin moving towards the direction deviating from the second pin, the elastic pretightening force can be particularly applied to 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 first elastic piece, the locking part can deviate 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 out. The second elastic piece is used for generating elastic pretightening force of the indicator piece far away from the shielding area, the second elastic piece can drive the indicator piece to switch from the shielding state to the indicating state, and the second elastic piece cannot play a role in a general state due to the mutual clamping of the clamping protrusion and the indicator piece. The general state of the indicator is always in a shielding area, and the corresponding indicator window is displayed in a normal working state. After the clamping protrusion is separated from the indicating piece, the second elastic piece drives the indicating piece to switch to an indicating state, and the corresponding indicating window is displayed as a fault state.

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 first elastic piece drives the locking part to be far away from the second pin, the clamping protrusion arranged on the locking part can be separated from the indicating piece and is released from clamping connection with the indicating piece to release, and the second elastic piece can switch the indicating piece from the shielding state to the indicating state by utilizing the elastic pretightening force of the second elastic piece at the moment, and the corresponding indicating window is displayed as a fault state.

In some examples, the locking portion is integrally disposed with the mating portion, the locking portion is disposed at an angle to the mating portion, and a position of the locking portion away from the mating portion is connected to the second pin.

Based on the above-mentioned example of this application, the second pin that integrative set up can have higher connection stability, and locking part is electrically conductive sheet structure, breaks away from the second pin and breaks away from the back at locking part, and the elasticity pretightning force of first elastic component can drive locking part deformation and move towards the direction of keeping away from the second pin, until the butt trigger ejector pin on corresponding micro-gap switch for micro-gap switch state changes, gives fault signal.

In some examples, the locking portion is disposed with the plug portion body, a first end of the locking portion is fixed on the bracket, a second end of the locking portion is a free end, and the second pin is connected to a position of the locking portion near the free end.

The first end of the plug-in part is fixedly connected to the bracket, the second end of the plug-in part extends to the outer side of the accommodating cavity, and the locking part is connected with the plug-in part through a flexible conductor.

Based on the above-mentioned example of this application, the locking part and the grafting portion that the components of a whole that can function independently set up can have bigger assembly flexibility, can more rationally utilize the overall arrangement space that holds the intracavity, reduce the holistic assembly space of lightning protection module. The first end of the locking part can be fixed on the bracket, so that when the locking part is separated from the second pin, the first end is only the free end which is far away from the second pin, and the whole locking part is not separated from the second pin. The second end of the locking part is a free end and can be matched with the second pin better, the locking part can have a certain elastic deformation range, and after the first elastic piece is combined, the second end of the locking part can elastically deform by taking the position of the first end as a pivot when the locking part is separated from the second pin. The locking part is connected with the plug-in part through the flexible conductor, so that the locking part and the plug-in part can be ensured to be conducted, and the lightning stroke circuit can be guided to the pressure-sensitive chip.

In some examples, the first elastic member is a spring, the locking portion is provided with a first positioning portion adapted to the spring, and the bracket is provided with a second positioning portion adapted to the spring.

Based on the above-mentioned example of this application, the spring can have higher stability, and first location portion can fix a position the first end of spring, and second location portion can fix a position the second end of spring, can all carry out spacingly with the both ends of spring through the cooperation of first location portion and second location portion, can reduce and prevent the condition that breaks away from appears even to the spring.

In some examples, the second elastic piece is a U-shaped elastic rod, and the second elastic piece includes a first force arm, a connecting portion and a second force arm that are sequentially connected, the first force arm is abutted to the support, and a limiting edge adapted to the first force arm is arranged on the support.

The limiting edge is provided with a first limiting protrusion and a second limiting protrusion, the first limiting protrusion is abutted to the end portion of the first force arm, the second limiting protrusion is abutted to the connecting portion, and the second force arm is abutted to the indicating piece.

Based on the above-mentioned example of this application, after the second elastic component is the U-shaped elastic rod, can make the occupation space of second elastic component smaller, the cross-section diameter of U-shaped elastic rod will be the thickness of U-shaped elastic rod. The first force arm and the second force arm can generate opposite elastic force, and the connecting part can connect the first force arm and the second force arm together. The limiting edges can limit the first force arm, the first limiting protrusions can limit the end portions of the first force arm, the second limiting protrusions can limit the positions of the connecting portions, and after the first force arm and the connecting portions are limited, the second force arm is abutted with the indicating piece to enable the second force arm to generate elastic pretightening force for driving the indicating piece to move.

In some examples, the indication piece is provided with a limiting protrusion matched with the second force arm, the limiting protrusion, the indication piece and the bracket are enclosed into a limiting groove, and the second force arm is located in the limiting groove.

Based on the above-mentioned example of this application, spacing arch can be spacing to the second arm of force, and the album of spacing groove can be better carries out spacingly to the second arm of force, prevents that the accident of second arm of force from breaking away from.

In some examples, an end of the second moment arm is bent toward a direction away from the indicator, and a bent position abuts the indicator.

Based on the above-mentioned example of this application, after the tip bending of second arm of force, can the tip of wall second arm of force directly push up on the indicator, reduce even avoid appearing the dead condition of relative card between second arm of force and the indicator. After the end part of the second force arm is bent, a smooth arc surface can be formed, and after the arc surface is abutted with the indicating piece, the friction force between the indicating piece and the contact position of the second force arm is smaller, so that the second force arm can better push the indicating piece to change the state of the indicating piece.

In some examples, the indication window is displayed in a color of the indication member when the indication member is in the shielding state, and the indication window is displayed in a color of the corresponding area of the bracket when the indication member is in the indication state.

The color of the bracket is different from that of the shielding plate in the indicating piece, or the color of the area, corresponding to the indicating window, of the bracket is set to be different from that of the shielding plate.

Based on the above-mentioned example of this application, the colour that indicates the window shows is the colour of support or the colour of indicator specifically, and when the indicator was in shelter from the state, the shielding plate of indicator will shelter from the indication window, and then only can see the colour of indicator through the indication window, and when the indicator was in the state of instructing, the shielding plate of indicator will not shelter from the indication window any more, just can see the colour of support corresponding region from the indication window. The color of the bracket and the color of the shielding plate are set to be two different colors which are easy to distinguish, or the color of the area corresponding to the bracket and the color of the shielding plate are set to be two different colors which are easy to distinguish.

In some examples, the bracket is clamped in the shell, a buckle is arranged on the outer circumferential surface of the bracket, and a clamping hole matched with the buckle is arranged on the shell. Or, be provided with the joint hole on the outer peripheral face of support, be provided with on the casing with buckle looks adaptation.

Based on the above-mentioned example of this application, the buckle can be through the cooperation with the joint hole, realizes the relative joint of casing and support. The buckle can be arranged on the bracket, the shell is correspondingly provided with the clamping hole, or the buckle can be arranged on the shell, and the bracket is correspondingly provided with the clamping hole.

In a second aspect, the present application provides a surge protector device, including a base, a micro switch, and the lightning protection module described above. 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-mentioned example of this application, the surge protector that has the lightning protection module of going up can utilize first elastic component to trip the locking part of second pin better to can realize the synchronous display module state change after the tripping through first elastic component and second elastic component linkage cooperation.

Drawings

For a clearer description of the technical solutions of the present application or of the prior art, the figures used in the examples or description of the prior art will be briefly introduced below, it being obvious that the figures in the following description are only some examples of the present application, from which other figures can be obtained, without the 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 structural view of a lightning protection module according to an example of the present application when an indicator is in a shielding state after a housing is hidden;

FIG. 3 is a schematic view of a lightning protection module according to an example of the present application, when the indicator is in an indicating state after the housing is hidden;

FIG. 4 is a schematic view of a lightning protection module in an example of the present application after the housing is hidden;

FIG. 5 is a schematic view of a lightning protection module according to an example of the present application after the housing and the indicator are both hidden;

FIG. 6 is a schematic view of a lightning protection module in an example of the present application showing a side of a pressure sensitive chip after a housing is hidden;

FIG. 7 is a schematic view of a lightning protection module according to an example of the present application after the housing, the first pins, and the second pins are all hidden;

FIG. 8 is a schematic view of a first pin of the lightning protection module according to an example of the present application;

FIG. 9 is a schematic structural view of an indicator in a lightning protection module according to an example of the present application;

FIG. 10 is a schematic structural view of a second elastic member in a lightning protection module according to an example of the present application;

FIG. 11 is a schematic view of a second pin of the lightning protection module according to an example of the present application;

FIG. 12 is a schematic view of a lightning protection module in an example of the present application, in which an indicator is in a shielding state after a housing is hidden, and a locking portion and a plug portion are connected by a flexible conductor;

fig. 13 is a schematic structural view of the lightning protection module in an example of the present application, in which the indicator is in an indicating state after the housing is hidden, and the locking portion and the plugging portion are connected by a flexible electrical conductor.

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. limit edges; 211. the first limiting protrusion; 212. the second limiting bulge; 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 protruding rotating shaft; 300. a pressure sensitive chip; 310. a first pin; 320. a second pin; 400. a first elastic member; 500. an indicator; 510. a movable plate; 511. a limit protrusion; 520. a shielding plate; 600. a second elastic member; 610. a first moment arm; 620. a connection part; 630. a second moment arm; 700. a first pin; 710. a first limit part; 800. a second pin; 810. a locking part; 811. the clamping bulge; 812. a first positioning portion; 820. a plug-in part; 830. a flexible electrical conductor; 840. and a second limiting part.

Detailed Description

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

In order to solve the above-mentioned technical problems, please refer to fig. 1-13, a lightning protection module is provided in a first aspect of the present application, which can utilize a first elastic member 400 to better trip a locking portion 810 of a second pin 800, and can realize a synchronous display of a module state change after trip through a linkage fit of the first elastic member 400 and the second elastic member 600.

Referring to fig. 1 to 13, in some examples of the present application, the lightning protection module includes a housing 100, a bracket 200, a pressure sensitive chip 300, a first elastic member 400, an indicator 500, and a second elastic member 600, where the housing 100 is provided with a receiving cavity, and an indicator window 110 communicating with the receiving cavity is provided on the housing 100. The bracket 200 is installed in the receiving chamber. The pressure sensitive chip 300 is mounted on the bracket 200 and is positioned in the accommodating cavity, a first pin 310 and a second pin 320 which are arranged at intervals are arranged on the pressure sensitive chip 300, 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 first elastic member 400 is connected with the bracket 200, the second end of the first elastic member 400 is connected with the second pin 800, and the first 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 bracket 200, and the indicator 500 has a shielding state in which the indicator 500 is partially located in a shielding region between the indication window 110 and the bracket 200, and an indication state in which the indicator 500 is separated from the shielding region. The first end of the second elastic member 600 is connected with the bracket 200, the second end of the second elastic member 600 is connected with the indicator 500, and the second elastic member 600 has an elastic pre-tightening force for driving the indicator 500 to be far away from the shielding area.

The second pin 800 includes a locking portion 810 and a plugging portion 820, wherein the locking portion 810 is connected with the second pin 320, the plugging portion 820 extends out of the accommodating cavity, and after the temperature at the connection position of 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 provided with a locking protrusion 811 that is locked with the indicator 500, and the locking protrusion 811 maintains the indicator 500 in a shielded state.

After the locking portion 810 is separated from the second pin 320, the first elastic member 400 drives the locking portion 810 to be away from the second pin 320, the clamping protrusion 811 and the indicator 500 are released from being clamped, and the second elastic member 600 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 first elastic member 400, the indicator 500, the second elastic member 600, and other components are all installed in the accommodating 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 first elastic member 400 can generate elastic pre-tightening force for enabling the second pin 800 to move towards the direction away from the second pin 320, the first elastic member 400 can specifically act on the locking portion 810 in the second pin 800, the locking portion 810 is welded on the second pin 320 in a normal state, after 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 emit heat in the degradation process, the joint of the locking portion 810 and the second pin 320 can generate high temperature higher than a preset value, the connection of the locking portion 810 and the second pin 320 can be loosened, the locking portion 810 can be separated from the second pin 320 under the action of the first elastic member 400, the locking portion 810 at the moment can deviate from the second pin 320 and is abutted to a corresponding micro switch, the micro switch state is changed, and a fault signal is given. The second elastic member 600 is configured to generate an elastic pre-tightening force that the shielding portion of the indicator 500 is far away from the shielding area, and the second elastic member 600 can drive the indicator 500 to switch from the shielding state to the indicating state, and the second elastic member 600 cannot function in a general state due to the mutual clamping between the clamping protrusion 811 and the indicator 500. The general state of the blocking portion of the indicator 500 is always in the blocking area, and the corresponding indication window 110 is displayed in the normal operation state. After the engaging protrusion 811 is separated from the indicator 500, the second elastic member 600 drives the indicator 500 to switch to the indicating state, and the corresponding indicating window 110 is displayed as the fault state.

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 first elastic member 400 drives the locking portion 810 to move away from the second pin 320, the locking protrusion 811 provided on the locking portion 810 is disengaged from the indicator 500 and is disengaged from the indicator 500 to release the indicator, and the second elastic member 600 will switch the indicator 500 from the blocking state to the indicating state by using the elastic pre-tightening force of the second elastic member 600 at this time, so that the corresponding indication window 110 is displayed as a fault state.

The embodiment of the application can utilize the first elastic member 400 to better trip the locking portion 810 of the second pin 800, and can realize the state change of the synchronous display module after tripping through the linkage cooperation of the first elastic member 400 and the second elastic member 600. 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 may cause the condition that the indicator 500 indicates failure, so that the user cannot replace the effective lightning protection module in time, and a great potential safety hazard exists. The lightning protection module disclosed by 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 indicator 500 may include a movable plate 510 and a shielding plate 520, where the movable plate 510 is movably connected with the bracket 200, the shielding plate 520 is adapted to the indicator window 110, and the shielding plate 520 can shield or be far away from a shielding area between the indicator window 110 and the bracket 200; the end of the movable plate 510 in the indicator 500 abuts against the catching protrusion 811 to maintain the indicator 500 in the shielding state.

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 first elastic member 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. 1-11, in some examples of the present application, the locking portion 810 is integrally provided with the plugging portion 820, the locking portion 810 is disposed at an angle to the plugging portion 820, and a position of the locking portion 810 away from the plugging portion 820 is connected to the second pin 320.

Based on the above-mentioned example of this application, the second pin 320 that integrative setting can have higher connection stability, and locking part 810 is electrically conductive sheet structure, and after locking part 810 breaks away from second pin 320 and breaks away from, the elasticity pretightning force of first elastic component 400 can drive locking part 810 deformation and move towards the direction of keeping away from second pin 320, until the butt is to the trigger ejector pin on the corresponding micro-gap switch for micro-gap switch state changes, gives the fault signal.

In the application, the matched micro-switches can be matched with the lightning protection module under the condition that a remote monitoring function is needed by structural selection accessories such as the micro-switches matched with the lightning protection module; 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 disposed in a corresponding first mounting groove 220 at a position where the first pin 700 is connected with the bracket 200, the first pin 700 may be partially mounted in the first mounting groove 220, a first limiting hole 221 may be formed at a bottom of the first mounting groove 220, and a first limiting portion 710 capable of being filled into the first limiting hole 221 may extend 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 mounted 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 840 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.

Referring to fig. 12 and 13, 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 to 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 application, the locking portion 810 and the plugging portion 820 that are separately arranged can have greater flexibility in assembly, and can more reasonably utilize the layout space in the accommodating cavity, so as to reduce 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 may be better matched with the second pin 320 after being a free end, the locking portion 810 may have a certain elastic deformation range, and when the locking portion 810 is separated from the second pin 320 after being combined with the first elastic member 400, the second end of the locking portion 810 may be elastically deformed by taking the first end position as a pivot point. The locking portion 810 and the plugging portion 820 may be connected by a flexible electrical conductor 830, which may ensure that the locking portion 810 and the plugging portion 820 are conductive, and may guide the lightning strike circuit onto 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.

In this application, the second pin 800 may be made of phosphor copper or beryllium bronze, and has good elasticity, and in addition to the excellent elasticity, the second pin 600 may be combined with the second elastic member 600, and the second elastic member 600 may act on the clamping protrusion 811 on the second pin 800, so as to provide driving force for the locking portion 810 through the second elastic member 600. 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.

The cooperation of this application's first pin 700 and first elastic component 400 can form tripping device, and tripping device can set up on the coplanar with pressure sensitive chip 300, and the coplanar here means that tripping device can set up in the pressure sensitive chip 300 one side that is close to the base, and such tripping device can guarantee that the tripping function is reliable and stable to can not increase the thickness dimension of pressure sensitive chip 300, can make the thickness dimension of lightning protection module can not increase because of tripping device's setting like this, reduce the thickness of whole lightning protection module. The thickness of indicator 500 can be 1mm + -0.2 mm, the thickness of second elastic component 600 also can be lower, this application can reduce lightning protection module's thickness to 13mm + -1 mm's scope, compare under the circumstances that tripping device increased lightning protection module thickness among the prior art, can make current surge protector's lightning protection module thickness for reaching 18mm, this scheme can reduce module thickness 5mm for lightning protection module thickness reaches 13mm, and then has saved lightning protection module's installation space and reduce cost, the tripping device novel structure of this application, simple structure is reliable.

In some examples of the present application, the first 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-mentioned example of this application, the spring can have higher stability, and first location portion 812 can be fixed a position the first end of spring, and second location portion 260 can be fixed a position the second end of spring, can all carry out spacingly with the both ends of spring through the cooperation of first location portion 812 and second location portion 260, can reduce even prevent the condition that the spring appears breaking away from.

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 second elastic member 600 is a U-shaped elastic rod, and the second elastic member 600 includes a first force arm 610, a connecting portion 620, and a second force arm 630 that are sequentially connected, where the first force arm 610 abuts against the bracket 200, and a limit rib 210 adapted to the first force arm 610 is disposed on the bracket 200.

The limiting rib 210 is provided with a first limiting protrusion 211 and a second limiting protrusion 212, the first limiting protrusion 211 is abutted with the end of the first force arm 610, the second limiting protrusion 212 is abutted with the connecting portion 620, and the second force arm 630 is abutted to the indicator 500.

Based on the above example of the present application, after the second elastic member 600 is a U-shaped elastic rod, the occupied space of the second elastic member 600 can be smaller, and the cross-sectional diameter of the U-shaped elastic rod can be the relative thickness dimension of the U-shaped elastic rod. The first force arm 610 and the second force arm 630 may generate opposing elastic forces, and the connection 620 may connect the first force arm 610 and the second force arm 630 together. The limiting edge 210 may limit the first force arm 610, the first limiting protrusion 211 may limit the end of the first force arm 610, the second limiting protrusion 212 may limit the position of the connecting portion 620, and after the first force arm 610 and the connecting portion 620 are both limited, the second force arm 630 abuts against the indicator 500 to enable the second force arm 630 to generate an elastic pretightening force that drives the indicator 500 to move.

The indicator 500 is rotatably connected to the bracket 200, a rotation connection hole is formed in the indicator 500, a protrusion rotating shaft 270 matched with the indicator 500 is arranged on the bracket 200, the relative rotation between the indicator 500 and the bracket 200 can be realized through the cooperation of the protrusion rotating shaft 270 and the rotation connection hole, and the indicator 500 and the bracket 200 can be stably matched with each other through the limit of the inner wall of the shell 100. The length of the indicator 500 near the second force arm 630 is smaller than the length of the indicator 500 near the indication window 110, so that the second force arm 630 can drive the indicator 500 near the indication window 110 to displace greatly by a small displacement, and the shielding plate 520 can be entirely far away from the shielding area after the second force arm 630 is slightly pushed, thereby realizing the change of the indication state.

In some examples of the present application, the indicator 500 is provided with a limiting protrusion 511 adapted to the second force arm 630, where the limiting protrusion 511, the indicator 500 and the bracket 200 enclose a limiting groove, and the second force arm 630 is partially located in the limiting groove.

Based on the above example of the present application, the limiting protrusion 511 may limit the second force arm 630, and the album of the limiting slot may better limit the second force arm 630, so as to prevent the accidental detachment of the second force arm 630.

In some examples of the present application, the end of the second moment arm 630 is bent toward a direction away from the indicator 500, and the bent position abuts the indicator 500.

Based on the above example of the present application, after the end portion of the second force arm 630 is bent, the end portion of the second force arm 630 can be directly propped against the indicator 500, so as to reduce or even avoid the occurrence of relative jamming between the second force arm 630 and the indicator 500. After the end of the second force arm 630 is bent, a smooth arc surface can be formed, and after the arc surface is abutted with the indicator 500, the friction force between the indicator 500 and the contact position of the second force arm 630 is smaller, so that the second force arm 630 can better push the indicator 500, and the state of the indicator 500 is changed.

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

Based on the above examples 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 shielding state, the shielding plate 520 of the indicator 500 will shield the indication window 110, and then only the color of the indicator 500 can be seen through the indication window 110, and when the indicator 500 is in the indication state, the shielding plate 520 of the indicator 500 will not shield the indication window 110 any more, so that the color of the area corresponding to 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 plate 520 are set to be easily distinguished by two different colors, or the color of the region corresponding to the bracket 200 and the color of the shielding plate 520 are set to be easily distinguished by two different colors.

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 the user or staff can more easily distinguish.

In some examples of the present application, the bracket 200 is clamped in the housing 100, the buckle 250 is disposed on the outer peripheral surface of the bracket 200, and the housing 100 is provided with the clamping hole 120 adapted to the buckle 250. Alternatively, the outer circumferential surface of the bracket 200 is provided with a fastening hole 120, and the housing 100 is provided with a fastener 250 adapted to the fastener 250.

Based on the above examples of the present application, the buckle 250 can realize the relative clamping of the housing 100 and the bracket 200 through the cooperation with the clamping 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 of the present application illustrate an example in which the buckle 250 is provided on the bracket 200.

In a second aspect, the present application provides a surge protector device, including a base, a micro switch, and the lightning protection module described above. 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 portion 810 of the second pin 800 by using the first elastic member 400, and can realize the synchronous display of the state change of the module after the trip by the linkage cooperation of the first elastic member 400 and the second elastic member 600.

Specifically, the first 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 degrade, the pressure sensitive chip 300 will continuously release heat during degradation, 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 first 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 second elastic member 600 is configured to generate an elastic pre-tightening force that the indicator 500 is far away from the shielding area, and the second elastic member 600 can drive the indicator 500 to switch from the shielding state to the indicating state, and the second elastic member 600 cannot function in a general state due to the mutual clamping between the clamping protrusion 811 and the indicator 500. The indicator 500 is always in a blocking area in a normal state, and the corresponding indication window 110 is displayed in a normal operation state. After the engaging protrusion 811 is separated from the indicator 500, the second elastic member 600 drives the indicator 500 to switch to the indicating state, and the corresponding indicating window 110 is displayed as the fault state.

In the process that the first elastic member 400 drives the locking portion 810 to separate from the second pin 320, the locking protrusion 811 provided on the locking portion 810 is disengaged from the indicator 500 and is disengaged from the indicator 500, and the second elastic member 600 will switch the indicator 500 from the blocking state to the indicating state by using the elastic pre-tightening force of the second elastic member 600, so that the corresponding indication window 110 is displayed as a fault state.

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 as to distinguish the front and back of the housing 100, and prevent the lightning protection module from being 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 of the application 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, this is for convenience of description and simplification of the description, but does not indicate or imply that the apparatus or element to be referred 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 used for illustration and are not to be construed as limitations of the present patent, and that the specific meaning of the terms described above may be understood by those of ordinary skill in the art according to the specific circumstances.

The foregoing is illustrative of the present invention and is not to be construed as limiting thereof, but rather as providing for the use of various modifications, equivalents, and improvements within the spirit and principles of the present invention.

Claims (10)

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 elastic piece is provided with an elastic pretightening force which enables the second pin to move towards the direction deviating from the second pin;

the indicator is movably connected with the bracket and is provided with a shielding state and an indicating state, in the shielding state, the indicator part is 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 first end of the second elastic piece is connected with the bracket, the second end of the second elastic piece is connected with the indicating piece, and the second elastic piece has elastic pretightening force for driving the indicating piece to be far away 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;

the locking part is provided with a clamping protrusion which is clamped with the indicator, and the clamping protrusion maintains the indicator in a shielding state;

after the locking part is separated from the second pin, the first elastic piece drives the locking part to be far away from the second pin, the clamping protrusion and the indicating piece are released from clamping, and the second elastic piece drives the indicating piece to be switched from the shielding state to the indicating state.

2. The lightning protection module according to claim 1, wherein the locking portion is integrally provided with the plug portion, the locking portion is disposed at an angle to the plug portion, and a position of the locking portion away from the plug portion is connected to the second pin.

3. The lightning protection module according to claim 1, wherein the locking portion is integrally provided with the plugging portion, a first end of the locking portion is fixed on the bracket, a second end of the locking portion is a free end, and the second pin is connected to the locking portion at a position close to the free end;

the first end of the plug-in part is fixedly connected to the bracket, the second end of the plug-in part extends to the outer side of the accommodating cavity, and the locking part is connected with the plug-in part through a flexible conductor.

4. The lightning protection module according to any one of claims 1 to 3, wherein the first elastic member is a spring, the locking portion is provided with a first positioning portion adapted to the spring, and the bracket is provided with a second positioning portion adapted to the spring.

5. The lightning protection module according to any one of claims 1 to 3, wherein the second elastic member is a U-shaped elastic rod, the second elastic member comprises a first force arm, a connecting part and a second force arm which are sequentially connected, the first force arm is abutted to the bracket, and a limit edge matched with the first force arm is arranged on the bracket;

the limiting edge is provided with a first limiting protrusion and a second limiting protrusion, the first limiting protrusion is abutted to the end portion of the first force arm, the second limiting protrusion is abutted to the connecting portion, and the second force arm is abutted to the indicating piece.

6. The lightning protection module according to claim 5, wherein the indication member is provided with a limiting protrusion adapted to the second force arm, the limiting protrusion, the indication member and the bracket are enclosed into a limiting groove, and the second force arm is partially positioned in the limiting groove.

7. The lightning protection module according to claim 5, wherein an end of the second moment arm is bent in a direction away from the indicator, and wherein the bent position abuts the indicator.

8. The lightning protection module according to any one of claims 1 to 3, wherein the indication window is displayed in a color of an indication member when the indication member is in a shielding state, and in a color of a corresponding region of the bracket when the indication member is in an indication state;

the color of the bracket is different from that of the shielding plate in the indicating piece, or the color of the area, corresponding to the indicating window, of the bracket is set to be different from that of the shielding plate.

9. The lightning protection module according to any one of claims 1 to 3, wherein the bracket is clamped in the shell, a buckle is arranged on the outer peripheral surface of the bracket, and a clamping hole matched with the buckle is arranged on the shell;

Or, be provided with the joint hole on the outer peripheral face of support, be provided with on the casing with buckle looks adaptation.

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.