A lightning arrester

Abstract

The present application relates to the technical field of lightning arresters, and provides a lightning arrester, the lightning arrester comprising a mounting platform, two lightning arrester components and a temperature-sensitive switching device, the two lightning arrester components are arranged on the mounting platform at intervals; the axes of the two lightning arrester components are parallel; the temperature-sensitive switching device comprises two first terminals and a second terminal; the two first terminals are detachably connected to the second terminals respectively; the two first terminals are connected to the two lightning arrester components one by one; the second terminal is electrically connected to the protected equipment; wherein the temperature-sensitive switching device is used to connect the two first terminals to the second terminal alternately according to the temperature difference between the two lightning arrester components. The lightning arrester provided by the present application effectively prolongs the service life of the lightning arrester and reduces the maintenance cost by connecting the two lightning arrester components alternately to the protected equipment according to the temperature difference between the two lightning arrester components.

Description

Technical Field

[0001] The present application relates to the technical field of lightning arresters, and in particular to a lightning arrester. Background Art

[0002] Lightning arrester is a kind of overvoltage protector, which is mainly used to protect various electrical equipment in power system, railway electrification system and communication system from damage by atmospheric overvoltage, operating overvoltage and power frequency transient overvoltage. It is the basis of insulation coordination of power system.

[0003] The temperature of the lightning arrester in the related art will increase after being subjected to overvoltage continuously, causing the performance of the lightning arrester to drop rapidly, and even causing damage or explosion of the lightning arrester, causing harm to surrounding equipment and personnel. Summary of the invention

[0004] The embodiment of the present application provides a lightning arrester, which can improve the technical problem in the related art that the temperature of the lightning arrester increases, the performance decreases, and even the lightning arrester is damaged or exploded after being continuously subjected to overvoltage.

[0005] The present application provides a lightning arrester, comprising:

[0006] Installation platform;

[0007] Two lightning protection assemblies, the two lightning protection assemblies are arranged on the mounting platform at intervals; the axes of the two lightning protection assemblies are parallel; and

[0008] A temperature-sensing switching device, the temperature-sensing switching device comprising two first wiring terminals and one second wiring terminal; the two first wiring terminals are respectively detachably connected to the second wiring terminal; the two first wiring terminals are connected to the two lightning protection components one by one; the second wiring terminal is electrically connected to the protected equipment;

[0009] Wherein, the temperature-sensing switching device is used to connect the two first wiring terminals to the second wiring terminals alternately according to the temperature difference between the two lightning protection components.

[0010] The above technical solutions in the embodiments of the present application have at least the following technical effects:

[0011] The lightning arrester provided in the embodiment of the present application is achieved by arranging two lightning arrester components on a mounting platform. The two lightning arrester components are respectively connected to the two first terminals of a temperature-sensing switching device. The temperature-sensing switching device connects the two first terminals alternately to the second terminals according to the temperature difference between the two lightning arrester components. The second terminals are connected to the protected equipment. The two lightning arrester components can enhance the redundancy of the lightning arrester, improve the reliability of the lightning arrester, and optimize the protection performance through dynamic switching, and effectively extend the service life of the lightning arrester, reduce the frequency of maintenance and replacement, and reduce maintenance costs.

[0012] In some embodiments, the temperature sensing switching device further includes:

[0013] Two temperature-sensitive strain members, one end of each of which is disposed at one end of each of the two lightning protection assemblies; each of which can change shape according to the temperature change of the lightning protection assembly;

[0014] A connecting piece is selected, and two ends of one side of the connecting piece are respectively connected to the other ends of the two temperature-sensitive strain pieces; the connecting piece can rotate around an axis perpendicular to the lightning protection assembly; and

[0015] A movable holding member, wherein the movable holding member can move along the axial direction of the lightning protection assembly; the movable holding member is detachably connected to at least one end of the other side of the optional connecting member;

[0016] Among them, the two first wiring terminals are arranged one by one at the two ends of the other side of the optional connecting member; the optional connecting member is used to rotate with the volume change of the two temperature-sensitive strain members, so that at least one end of the other side of the optional connecting member is connected to the movable maintaining member, and then the first wiring terminal corresponding to the lightning protection component with a low temperature is connected to the second wiring terminal through the movable maintaining member.

[0017] In some embodiments, the temperature-sensitive strain element comprises:

[0018] A temperature sensing element, the temperature sensing element being disposed at one end of the lightning protection assembly; the temperature sensing element being able to expand and contract along the axis direction of the lightning protection assembly as the temperature of the lightning protection assembly changes; and

[0019] An elastic member, one end of which is arranged at an end of the temperature sensing member away from the lightning protection assembly; the other end of the elastic member is connected to one end of one side of the optional connecting member; and the elastic member can be extended and retracted along the axial direction of the lightning protection assembly.

[0020] In some embodiments, the temperature-sensing switching device further comprises an insulating connecting plate, and two ends of the insulating connecting plate are connected to one end of the two lightning protection assemblies in a one-to-one correspondence;

[0021] The mobile support comprises:

[0022] A column, wherein the column is arranged on a side of the insulating connecting plate away from the lightning protection assembly; the height direction of the column is parallel to the axial direction of the lightning protection assembly;

[0023] a movable plate, the movable plate being movably disposed on the column along a height direction of the column; and

[0024] Two contacts, the two contacts are arranged on a side of the movable plate facing the selected connecting member; the two contacts are arranged at intervals;

[0025] Wherein, the second terminal is arranged on a side of the movable plate away from the lightning protection assembly; and at least one of the contacts abuts against the selected connecting piece.

[0026] In some embodiments, the optional connector includes:

[0027] A first support member, one end of which is disposed on a side of the insulating connecting plate away from the mounting platform;

[0028] A lever, wherein two ends of the lever facing the lightning protection assembly are respectively connected to the other ends of the two temperature-sensitive strain members; the middle portion of the lever is hinged to the other end of the first support member; the axis of the hinge between the middle portion of the lever and the first support member is perpendicular to the axis of the lightning protection assembly and perpendicular to the line connecting one ends of the two lightning protection assemblies;

[0029] A swing rod, one end of which is disposed at the middle of the lever; the swing rod is located on a side of the lever away from the lightning protection assembly;

[0030] A second support member, one end of which is disposed on a side of the insulating connecting plate away from the mounting platform; and

[0031] A tilting member, wherein the middle portion of the tilting member is hinged to the other end of the second support member; one side of the middle portion of the tilting member abuts against the other end of the swing rod; the height direction of the tilting member is the same as the axial direction of the lightning protection assembly; the distances from both ends of the tilting member to the insulating connecting plate are greater than the distance from the middle portion of the tilting member to the insulating connecting plate; at least one end of the tilting member is detachably connected to the movable support member;

[0032] Wherein, the two first wiring terminals are respectively arranged at two ends of the tilting member.

[0033] In some embodiments, the tilting member comprises:

[0034] an arc-shaped tilting rod, wherein the middle portion of the arc-shaped tilting rod is hinged to the other end of the second support member; one side of the arc-shaped tilting rod abuts against the side of the swing rod away from the lightning protection assembly; and the opening direction of the arc-shaped tilting rod faces the lightning protection assembly; and

[0035] Two contacts, the two contacts are respectively arranged at the other end of the arc-shaped tilting rod;

[0036] Wherein, the two first wiring terminals are respectively arranged on the two contacts.

[0037] In some embodiments, the lightning arrester further comprises:

[0038] Two temperature detection devices, the two temperature detection devices are arranged at one end of the two lightning protection assemblies in a one-to-one correspondence; and

[0039] A balancing device is arranged on the lever; the balancing device is electrically connected to the two temperature detection devices respectively; the balancing device is used to rotate the lever until both ends of the tilting member abut against the movable holding member at the same time when the temperature detection device detects that the lightning protection assembly reaches a preset temperature.

[0040] In some embodiments, the balancing device comprises:

[0041] A balancing driver, the balancing driver being arranged at a hinge between the lever and the first support member; a power output end of the balancing driver being connected to the lever; and

[0042] A controller is arranged on the balancing driver; the controller is electrically connected to the two temperature detection devices and the balancing driver respectively; the controller is used to control the balancing driver to drive the lever to rotate when the temperature detection device detects that the lightning protection component reaches a preset temperature.

[0043] In some embodiments, the lightning arrester also includes a fault detection device, which is arranged on a side of the insulating connecting plate away from the lightning arrester assembly; the fault detection device is electrically connected to the controller; and the fault detection device is used to detect whether the lightning arrester assembly is faulty.

[0044] In some embodiments, the fault detection device comprises:

[0045] A collection component, the collection component is arranged on a side of the insulating connecting plate away from the lightning protection component; the collection component is used to obtain the connection status of the two lightning protection components respectively;

[0046] The controller is used to determine whether the lightning protection assembly is faulty according to the connection conditions of the two lightning protection assemblies respectively acquired by the acquisition assembly and the temperatures of the two lightning protection assemblies detected by the two temperature detection devices. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0048] Figure 1 A schematic diagram of the structure of a lightning arrester provided in an embodiment of the present application;

[0049] Figure 2 A front view of a lightning arrester provided in an embodiment of the present application;

[0050] Figure 3 A schematic diagram of the structure of a temperature sensing switching device provided in an embodiment of the present application.

[0051] Among them, the reference numerals in the figure are:

[0052] 100, lightning arrester; 10, lightning arrester assembly; 20, temperature-sensing switching device; 201, temperature-sensing strain member; 2011, temperature-sensing member; 2012, elastic member; 202, select a connecting member; 2021, first support member; 2022, lever; 2023, rocker; 2024, second support member; 2025, tilting member; 20251, arc-shaped tilting rod; 20252, contact; 203, mobile holding member; 2031, column; 2032, moving plate; 2033, contact; 204, insulating connecting plate; 205, temperature detection device; 206, balancing device; 2061, balancing driver; 2062, controller; 207, fault detection device; 2071, acquisition assembly; 208, first terminal; 209, second terminal; 30, wire. DETAILED DESCRIPTION

[0053] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0054] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application. The terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned figure descriptions are intended to cover non-exclusive inclusions.

[0055] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0056] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0057] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0058] In this application, "and / or" is only a description of the association relationship of associated objects, indicating that there can be three relationships; for example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0059] It should be noted that, in the present application, words such as "in some embodiments", "exemplarily", "for example", etc. are used to indicate examples, illustrations or descriptions. Any embodiment or design described in the present application as "in some embodiments", "exemplarily", "for example" should not be interpreted as being more preferred or more advantageous than other embodiments or designs. Specifically, the use of words such as "in some embodiments", "exemplarily", "for example", etc. is intended to present related concepts in a concrete way, meaning that specific features, structures or characteristics described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the above words in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0060] Lightning arrester is a kind of overvoltage protector, which is mainly used to protect various electrical equipment in power system, railway electrification system and communication system from damage by atmospheric overvoltage, operating overvoltage and power frequency transient overvoltage. It is the basis of insulation coordination of power system.

[0061] The temperature of the lightning arrester in the related art will increase after being subjected to overvoltage continuously, causing the performance of the lightning arrester to drop rapidly, and even causing damage or explosion of the lightning arrester, causing harm to surrounding equipment and personnel.

[0062] Based on this, in order to improve the technical problem in the related art that the arrester is continuously subjected to overvoltage, which causes the temperature of the arrester to rise, the performance to decline, or even to be damaged or exploded, the embodiments of the present application provide the following solution.

[0063] Please also read Figure 1 and Figure 2 The embodiment of the present application provides a lightning arrester 100, which includes a mounting platform, two lightning arrester components 10 and a temperature-sensing switching device 20. The two lightning arrester components 10 are arranged on the mounting platform at intervals; the axes of the two lightning arrester components 10 are parallel; the temperature-sensing switching device 20 includes two first terminals 208 and a second terminal 209; the two first terminals 208 are detachably connected to the second terminals 209 respectively; the two first terminals 208 are connected to the two lightning arrester components 10 one by one; the second terminal 209 is electrically connected to the protected equipment; wherein the temperature-sensing switching device 20 is used to connect the two first terminals 208 alternately to the second terminal 209 according to the temperature difference between the two lightning arrester components 10.

[0064] It can be understood that the mounting platform is a component used to fix the lightning protection assembly 10 and ensure that the lightning protection assembly 10 can operate stably. The mounting platform can use an insulating base to ensure that the lightning current flows into the ground, or a metal base can be used to ground the lightning protection assembly 10 to ensure the lightning protection effect of the lightning arrester 100, but it is not limited to this. The lightning protection assembly 10 is composed of multiple groups of nonlinear resistor valve plates, which are used to limit overvoltage and protect electrical equipment. A lightning protection assembly 10 can limit the voltage and protect the circuit in which it is located. The axis of the lightning protection assembly 10 is perpendicular to the surface of the mounting platform to keep the lightning protection assembly 10 stable. The temperature-sensing switching device 20 is a device for automatically switching according to the temperature difference between the two lightning protection components 10 to connect the lightning protection component 10 with a lower temperature to the protected equipment. For example, the temperature-sensing switching device 20 may include a temperature detection device 205 and a central control device. The temperature of the two lightning protection components 10 is monitored by the temperature detection device 205. The on-off of the circuit is controlled by the central control device according to the temperature of the two lightning protection components 10, so that the two lightning protection components 10 are alternately connected to the protected equipment; or, the temperature-sensing switching device 20 may include two temperature-sensitive memory metals and a mechanical switch. The temperature-sensitive memory metal is deformed according to the temperature of the lightning protection component 10, thereby pushing the mechanical switch to move, so that the two lightning protection components 10 are alternately connected to the protected equipment, but it is not limited to this.

[0065] From the above, it can be seen that the lightning arrester 100 provided in the embodiment of the present application sets two lightning arrester components 10 on the installation platform, and the two lightning arrester components 10 are respectively connected to the two first terminals 208 of the temperature sensing switching device 20. The temperature sensing switching device 20 makes the two first terminals 208 alternately connected to the second terminal 209 according to the temperature difference between the two lightning arrester components 10, and the second terminal 209 is connected to the protected equipment. The two lightning arrester components 10 can enhance the redundancy of the lightning arrester 100, improve the reliability of the lightning arrester 100, and optimize the protection performance through dynamic switching, and effectively extend the service life of the lightning arrester 100, reduce the frequency of maintenance and replacement, and reduce maintenance costs.

[0066] In some embodiments, please refer to Figures 1 to 3 The temperature-sensing switching device 20 also includes two temperature-sensing strain members 201, a connecting member 202 and a movable holding member 203. One end of the two temperature-sensing strain members 201 is respectively arranged at one end of the two lightning protection components 10; the temperature-sensing strain members 201 can change shape according to the temperature change of the lightning protection component 10; the two ends of one side of the connecting member 202 are respectively connected to the other end of the two temperature-sensing strain members 201; the connecting member 202 can rotate around an axis perpendicular to the lightning protection component 10; and the movable holding member 203 can move along the axial direction of the lightning protection component 10; the movable holding member 203 is detachably connected to at least one end of the other side of the connecting member 202. Among them, the two first terminals 208 are arranged one by one at the two ends of the other side of the selected connecting member 202; the selected connecting member 202 is used to rotate with the volume change of the two temperature-sensitive strain members 201, so that at least one end of the other side of the selected connecting member 202 is connected to the movable holding member 203, and then the first terminal 208 corresponding to the low-temperature lightning protection component 10 is connected to the second terminal 209 through the movable holding member 203.

[0067] It can be understood that the temperature-sensitive strain element 201 is an element that can change its shape according to the temperature change of the lightning protection assembly 10. The temperature-sensitive strain element 201 can be directly set at one end of the lightning protection assembly 10 so that the temperature of the lightning protection assembly 10 can be transmitted to the temperature-sensitive strain element 201, or the lightning protection assembly 10 and the temperature-sensitive strain element 201 can be connected by a metal wire, but it is not limited to this. The temperature-sensitive strain element 201 can adopt a block that can change its shape with the change of temperature; it can also adopt a spring that can expand and contract with the change of temperature, but it is not limited to this. One of the connecting pieces 202 is divided into two sides along its own height direction, and each side is divided into two ends along its own width and length direction. The two ends of one of the connecting pieces 202 facing the lightning protection assembly 10 are respectively connected to the two temperature-sensitive strain elements 201, and the two ends of the other side are abutted against the movable holding piece 203. The optional connector 202 is a component used to change the shape of the temperature-sensitive strain member 201 so that the two first terminals 208 are alternately connected to the second terminals 209. The optional connector 202 may include a single-pole double-throw switch, which rotates the moving end contact 2033 so that the two ends of the optional connector 202 on one side facing the mobile holding member 203 are alternately connected to the mobile holding member 203; or it may include an electric control switch, which drives the knob to rotate through a motor so that the second terminal 209 is switched to connect to the two first terminals 208, but is not limited to this. The movable holding member 203 is a member used to always be connected to any end of the side of the selected connecting member 202 away from the lightning protection assembly 10, so that the second terminal 209 is always connected to at least one first terminal 208. For example, the movable holding member 203 may include a spring, which pushes one end of itself toward the selected connecting member 202 and abuts against the selected connecting member 202; or the movable holding member 203 may include a rod body and a moving block, the rod body is vertically arranged above the selected connecting member 202, and the moving block can move along the length direction of the rod body. The moving block moves toward the selected connecting member 202 under the action of gravity and always abuts against one end of the selected connecting member 202, but is not limited to this.

[0068] In this arrangement, one end of the two temperature-sensitive strain members 201 is respectively arranged at one end of the two lightning protection assemblies 10, so as to monitor the temperature change of the two lightning protection assemblies 10 in real time and generate corresponding shape changes according to the temperature of the lightning protection assemblies 10. The two ends of one side of the optional connector 202 are respectively connected to the other ends of the two temperature-sensitive strain members 201, so that the optional connector 202 can rotate according to the shape change of the two temperature-sensitive strain members 201. The optional connector 202 rotates itself so that the two ends of the side away from the lightning protection assembly 10 are alternately connected to a certain holding member, so that the two first terminals 208 are alternately connected to the second terminals 209 according to the temperature change of the two lightning protection assemblies 10, and then the two lightning protection assemblies 10 are alternately connected to the protected equipment according to their own temperature changes. In this way, through mechanical structure transmission, the temperature-sensing switching device 20 can connect the relatively low-temperature lightning protection component 10 to the protected equipment according to the temperature changes of the two lightning protection components 10, which can avoid the interference of overvoltage on the temperature-sensing switching device 20 when struck by lightning, so as to ensure that the one with the lower temperature of the two lightning protection components 10 can always be connected to the protected equipment, which is beneficial to improve the reliability of the lightning arrester 100, extend the service life of the lightning arrester 100, simplify the maintenance process, reduce the maintenance frequency, and significantly reduce the cost required to maintain the lightning arrester 100.

[0069] Optionally, in some embodiments, see Figures 1 to 3 The temperature-sensing strain member 201 includes a temperature-sensing member 2011 and an elastic member 2012. The temperature-sensing member 2011 is arranged at one end of the lightning protection assembly 10; the temperature-sensing member 2011 can expand and contract along the axial direction of the lightning protection assembly 10 as the temperature of the lightning protection assembly 10 changes; and one end of the elastic member 2012 is arranged at an end of the temperature-sensing member 2011 away from the lightning protection assembly 10; the other end of the elastic member 2012 is connected to one end of one side of the selected connecting member 202; the elastic member 2012 can expand and contract along the axial direction of the lightning protection assembly 10.

[0070] It can be understood that the temperature sensing element 2011 is a block that changes shape with temperature, and the deformation direction of the temperature sensing element 2011 is the same as the axial direction of the lightning protection assembly 10. For example, a cylinder or a square cylinder can be used, but it is not limited thereto. The temperature sensing element 2011 can be made of a nickel-titanium shape memory alloy, or a copper-zinc-aluminum shape memory alloy, but it is not limited thereto. The elastic member 2012 is a part used to generate deformation so that the selected connecting member 202 can rotate. When the temperature of one lightning protection component 10 is higher than that of the other lightning protection component 10, the deformation amplitude of the temperature sensing component 2011 with a higher temperature is greater than the deformation amplitude of the temperature sensing component 2011 with a lower temperature. The temperature sensing component 2011 with a larger deformation amplitude lifts the elastic member 2012, thereby pushing the selected connecting member 202 to rotate and compressing the other elastic member 2012. The selected connecting member 202 disconnects the end corresponding to the temperature sensing component 2011 with a larger deformation amplitude from the mobile maintaining member 203, and connects the end corresponding to the temperature sensing component 2011 with a smaller deformation amplitude to the mobile maintaining member 203. Thus, the selected connecting member 202 connects the first terminal 208 corresponding to the lightning protection component 10 with a lower temperature to the second terminal 209.

[0071] In this way, a temperature sensing element 2011 is provided at one end of the lightning protection assembly 10. The temperature sensing element 2011 expands and contracts along the axial direction of the lightning protection assembly 10 as the temperature of the lightning protection assembly 10 changes, thereby lifting the elastic element 2012. The elastic element 2012 at this end pushes one connecting piece 202 to rotate and presses down the elastic element 2012 at the other end, so that the two first connecting terminals 208 are alternately connected to the second connecting terminals 209. Through mechanical transmission, the interference of the lightning arrester 100 with the temperature strain element when it is subjected to overvoltage can be avoided, which is beneficial to improving the stability and reliability of the lightning arrester 100, and effectively improving the service life of the lightning arrester 100, reducing the difficulty of maintenance work, and reducing the cost required for maintenance.

[0072] Optionally, see Figures 1 to 3 The temperature-sensing switching device 20 also includes an insulating connecting plate 204, and the two ends of the insulating connecting plate 204 are connected to one end of the two lightning protection components 10 one by one; the movable holding member 203 includes a column 2031, a movable plate 2032 and two contacts 2033, the column 2031 is arranged on the side of the insulating connecting plate 204 away from the lightning protection component 10; the height direction of the column 2031 is parallel to the axial direction of the lightning protection component 10; the movable plate 2032 is movably arranged on the column 2031 along the height direction of the column 2031; and the two contacts 2033 are arranged on the side of the movable plate 2032 facing the selected connecting member 202; the two contacts 2033 are arranged at intervals; wherein, the second terminal 209 is arranged on the side of the movable plate 2032 away from the lightning protection component 10; at least one contact 2033 abuts against the selected connecting member 202.

[0073] It can be understood that the insulating connecting plate 204 is a part arranged between the two lightning protection components 10 and is used to provide a placement platform. The insulating connecting plate 204 can be a rubber plate or a ceramic plate, but is not limited to this. The column 2031 is a component used for support and providing a moving space. The column 2031 can be provided with a groove or a guide rail, but is not limited to this. The movable plate 2032 is a component used to move on the column 2031 to maintain contact with a selected connector 202. The movable plate 2032 can slide and rub with the column 2031 through the end face, or a roller can be provided at one end to roll on the column 2031 through the roller so as to be able to move on the column 2031, but is not limited to this. The two contacts 2033 are used to abut against one of the connectors 202 so that the first terminal 208 can be electrically connected to the second terminal 209. The two contacts 2033 can be connected to the second terminal 209 through the wire 30, or the movable plate 2032 can be made of conductive materials such as iron or copper to make the contact and the second terminal 209 conductive, but not limited to this. The second terminal 209 is a component used to connect to the protected device through the wire 30. The second terminal 209 can include a bolt to fix the wire 30, or can include a copper column with a wiring hole opened on the copper column, and the wire 30 is inserted into the wiring hole, but not limited to this.

[0074] In this way, the insulating connecting plate 204 is arranged between the two lightning protection components 10, the column 2031 is arranged on the side of the insulating connecting plate 204 away from the lightning protection component 10 along the height direction of the lightning protection component 10, the movable plate 2032 is movably arranged on the column 2031 along the height direction of the column 2031, and two contacts 2033 and a second terminal 209 are arranged on the side of the movable plate 2032 away from the lightning protection component 10. The movable plate 2032 always abuts against one of the connecting pieces 202 under the action of gravity, and the second terminal 209 is connected to one of the two first terminals 208 through the contact 2033, which can ensure that the protected equipment can always be connected to a lightning protection component 10, effectively improve the stability and reliability of the lightning arrester 100, can effectively prevent damage to the equipment by lightning strikes or overvoltage, improve the protection effect, and reduce the maintenance cost of the lightning arrester 100.

[0075] In some embodiments, see Figure 1 and Figure 3, a connecting member 202 includes a first support member 2021, a lever 2022, a swing rod 2023, a second support member 2024 and a tilting member 2025, one end of the first support member 2021 is arranged on the side of the insulating connecting plate 204 away from the mounting platform; the two ends of the lever 2022 facing the lightning protection component 10 are respectively connected to the other ends of the two temperature-sensitive strain members 201; the middle part of the lever 2022 is hinged to the other end of the first support member 2021; the axis of the hinge between the middle part of the lever 2022 and the first support member 2021 is perpendicular to the axis of the lightning protection component 10, and perpendicular to the connecting line of one end of the two lightning protection components 10; one end of the swing rod 2023 is arranged in the middle part of the lever 2022; the swing rod 2023 Located on the side of the lever 2022 away from the lightning protection assembly 10; one end of the second support member 2024 is arranged on the side of the insulating connecting plate 204 away from the mounting platform; and the middle part of the tilting member 2025 is hinged to the other end of the second support member 2024; one side of the middle part of the tilting member 2025 abuts against the other end of the rocker 2023; the height direction of the tilting member 2025 is the same as the axial direction of the lightning protection assembly 10; the distance from the two ends of the tilting member 2025 to the insulating connecting plate 204 is greater than the distance from the middle part of the tilting member 2025 to the insulating connecting plate 204; at least one end of the tilting member 2025 is detachably connected to the movable holding member 203; wherein, the two first terminal ends 208 are respectively arranged at the two ends of the tilting member 2025.

[0076] It can be understood that the first support member 2021 is a part used to provide a fulcrum and support. The first support member 2021 may include a support rod and a rotating shaft. One end of the support rod is arranged on the side of the insulating connecting plate 204 away from the lightning protection assembly 10 and is located between the two lightning protection assemblies 10. The rotating shaft is arranged at the other end of the support rod, and the axis of the rotating shaft is perpendicular to the height direction of the support rod. The lever 2022 is a component used to transmit the torque generated by the deformation of the temperature-sensitive strain member 201. By connecting the two ends of the lever 2022 to the two temperature-sensitive strain members 201 respectively, the temperature-sensitive strain member 201 with a large deformation amplitude lifts one end of the lever 2022, and the other end of the lever 2022 is lowered. The swing rod 2023 is a component arranged in the middle of the lever 2022, which is used to transmit torque and change the direction of power transmission. The second support member 2024 is a component used to support the tilting member 2025. The tilting member 2025 is a component used to rotate so that its two ends are respectively in contact with the two contacts 2033 of the movable holding member 203. The two ends of the tilting member 2025 can be made of conductive materials, such as iron or copper, but not limited thereto. The two ends of the tilting member 2025 are higher than the middle part, and the two first terminals 208 are respectively arranged at the two ends of the tilting member 2025 to be connected to the connecting holding member.

[0077] In this arrangement, by hingedly connecting the middle of the lever 2022 to the end of the first support member 2021, the two ends of the temperature-sensitive strain member 201 are respectively connected to the two ends of the lever 2022, so that the temperature-sensitive strain member 201 can drive the lever 2022 to rotate when it is deformed by temperature, and the lever 2022 rotates to make the swing rod 2023 swing, and then the tilting member 2025 is moved, so that one end of the tilting member 2025 rotates toward the mobile holding member 203, and the other end rotates toward the lightning protection assembly 10, and the mobile holding member 203 can only be connected to one end of the tilting member 2025. In this way, by selecting the mechanical structure of one of the connecting members 202 to alternately connect the two lightning protection assemblies 10 to the protected equipment, the interference of overvoltage on the temperature-sensitive switching device 20 can be effectively avoided, the stability and reliability of the lightning arrester 100 are improved, the safety performance of the lightning arrester 100 is improved, and the frequency and difficulty of maintenance are reduced, thereby reducing the maintenance cost.

[0078] Optionally, in some embodiments, see Figures 1 to 3 The tilting member 2025 includes an arc-shaped tilting rod 20251 and two contacts 20252. The middle part of the arc-shaped tilting rod 20251 is hinged to the other end of the second support member 2024; one side of the arc-shaped tilting rod 20251 abuts against the side of the swing rod 2023 away from the lightning protection assembly 10; the opening direction of the arc-shaped tilting rod 20251 is toward the lightning protection assembly 10; the two contacts 20252 are respectively arranged at the other end of the arc-shaped tilting rod 20251; wherein, the two first wiring terminals 208 are respectively arranged on the two contacts 20252.

[0079] It can be understood that the arc-shaped tilting rod 20251 is a component that is driven to rotate by the swing rod 2023. The other end of the second support member 2024 can be provided with a bearing, and the middle part of the arc-shaped tilting rod 20251 can be welded to the bearing so that the arc-shaped tilting rod 20251 can rotate; or the other end of the second support member 2024 is provided with a universal ball head, and the middle part of the arc-shaped tilting rod 20251 is sleeved on the universal ball head so that the arc-shaped tilting rod 20251 can rotate, but it is not limited to this. The arc-shaped tilting rod 20251 can be a round rod or a square rod, but it is not limited to this. The opening direction of the arc-shaped tilting rod 20251 is toward the lightning protection assembly 10, so that the distance from the two ends of the arc-shaped tilting rod 20251 to the lightning protection assembly 10 is less than the distance from the middle part of the arc-shaped tilting rod 20251 to the lightning protection assembly 10. The contact 20252 is a component used to abut against the contact point 2033 to make the first terminal 208 and the second terminal 209 conduct. The contact 20252 can be spherical or rod-shaped, but not limited thereto. The contact 20252 is made of conductive material, such as iron, copper, or silver, but not limited thereto.

[0080] In this way, the middle part of the arc-shaped tilting rod 20251 is hinged to the other end of the second support member 2024, so that the arc-shaped tilting rod 20251 can rotate with the swing of the swing rod 2023, and the opening direction of the arc-shaped tilting rod 20251 is toward the lightning protection assembly 10, so that the distance from the two ends of the arc-shaped tilting rod 20251 to the lightning protection assembly 10 is smaller than the distance from the middle part of the arc-shaped tilting rod 20251 to the lightning protection assembly 10, so that when the temperatures of the two lightning protection assemblies 10 are different, the two contacts 20252 cannot simultaneously release the contact 2033 with the movable holding member 203, thereby further improving the stability and reliability of the lightning arrester 100, improving the safety performance of the lightning arrester 100, and reducing the frequency and difficulty of maintenance, thereby reducing the maintenance cost.

[0081] Optionally, see Figures 1 to 3 The lightning arrester 100 also includes two temperature detection devices 205 and a balancing device 206. The two temperature detection devices 205 are arranged at one end of the two lightning arrester components 10 in a one-to-one correspondence; the balancing device 206 is arranged on the lever 2022; the balancing device 206 is electrically connected to the two temperature detection devices 205 respectively; the balancing device 206 is used to rotate the lever 2022 until the two ends of the tilting member 2025 simultaneously abut against the movable holding member 203 when the temperature detection device 205 detects that the lightning arrester component 10 reaches a preset temperature.

[0082] It can be understood that the temperature detection device 205 is an element for monitoring the temperature of the lightning protection assembly 10. For example, the temperature detection device 205 can be an infrared temperature detection device 205, or a thermocouple type non-contact temperature sensor, but is not limited thereto. The balancing device 206 is a device for receiving signals from the two temperature detection devices 205 and capable of driving the lever 2022 to rotate. The balancing device 206 can include a control element and a drive element, the control element is used to receive and send signals, and the drive element is used to drive the lever 2022 to rotate.

[0083] With such an arrangement, the temperature of the two lightning protection components 10 is detected in real time by the temperature detection device 205. When the lightning protection component 10 reaches a preset temperature, the lever 2022 is rotated by the balancing device 206 so that the two contacts 20252 at both ends of the tilting member 2025 are simultaneously in contact with the two contacts 2033 of the movable holding member 203, and the two lightning protection components 10 are simultaneously connected to the circuit to form redundant protection, thereby improving the reliability of the lightning arrester 100 and reducing the burden on each lightning arrester 100, thereby reducing the risk of damage to the lightning arrester 100, extending the service life of the lightning arrester 100, improving the safety of the circuit system, and reducing maintenance costs.

[0084] In some embodiments, see Figures 1 to 3The balancing device 206 includes a balancing driver 2061 and a controller 2062. The balancing driver 2061 is arranged at the hinge between the lever 2022 and the first support member 2021; the power output end of the balancing driver 2061 is connected to the lever 2022; the controller 2062 is arranged on the balancing driver 2061, and the controller 2062 is electrically connected to the two temperature detection devices 205 and the balancing driver 2061 respectively; the controller 2062 is used to control the balancing driver 2061 to drive the lever 2022 to rotate when the temperature detection device 205 detects that the lightning protection assembly 10 reaches a preset temperature.

[0085] It can be understood that the controller 2062 is a component for receiving the signal of the temperature sensor and sending a signal to control the balance driver 2061. The controller 2062 can be set in the middle of the lever 2022. For example, the controller 2062 can use a single chip microcomputer or a central processing unit, but is not limited thereto. The balance driver 2061 is a component for driving the lever 2022 to rotate. The balance driver 2061 can be set at the hinge between the lever 2022 and the first support member 2021. The power output end of the balance driver 2061 is connected to the lever 2022. The balance driver 2061 can use a servo motor or a stepping motor, but is not limited thereto.

[0086] In this arrangement, the controller 2062 receives the signal sent by the temperature detection device 205 to obtain the temperature of the two lightning protection components 10, and controls the balance driver 2061 to drive the lever 2022 to rotate according to the temperature of the lightning protection component 10, so that the two lightning protection components 10 are connected to the circuit at the same time to form redundant protection, improve the reliability of the lightning arrester 100, extend the service life of the lightning arrester 100, improve the safety of the circuit system, and reduce maintenance costs.

[0087] In some embodiments, see Figure 1 and Figure 2 The lightning arrester 100 also includes a fault detection device 207, which is arranged on a side of the insulating connecting plate 204 away from the lightning arrester assembly 10; the fault detection device 207 is electrically connected to the controller 2062, and the fault detection device 207 is used to detect whether the lightning arrester assembly 10 is faulty.

[0088] It can be understood that the fault detection device 207 is a device for detecting whether the lightning protection assembly 10 is faulty. For example, the fault detection device 207 can obtain an image of the lightning protection assembly 10, and the controller 2062 uses an image recognition judgment model to determine whether the lightning protection assembly 10 is faulty; or the fault detection device 207 can obtain operating state data such as temperature, current, and voltage of the lightning protection assembly 10 to determine whether the lightning protection assembly 10 is faulty, but is not limited thereto. The fault detection device 207 can output the fault information of the lightning protection assembly 10 to the controller 2062, and the controller 2062 controls the rotation of the lever 2022 according to the fault information, so that the normal lightning protection assembly 10 is connected to the protected device.

[0089] In this way, the fault detection device 207 is set on the side of the insulating connecting plate 204 facing the lightning protection assembly 10, and the fault detection device 207 detects the fault state of the lightning protection assembly 10, and then the controller 2062 controls the balance driver 2061 to rotate the lever 2022, so that the normal lightning protection assembly 10 is connected to the protected equipment, which is conducive to timely detection of faults, improving the safety of the circuit system, avoiding equipment damage caused by the failure of the lightning protection assembly 10, and effectively improving maintenance efficiency.

[0090] In some embodiments, see Figure 3 The fault detection device 207 includes a collection component 2071, which is arranged on a side of the insulating connecting plate 204 away from the lightning protection component 10; the collection component 2071 is used to obtain the connection status of the two lightning protection components 10 respectively; wherein the controller 2062 is used to determine whether the lightning protection component 10 is faulty according to the connection status of the two lightning protection components 10 respectively obtained by the collection component 2071 and the temperatures of the two lightning protection components 10 detected by the two temperature detection devices 205.

[0091] It can be understood that the acquisition component 2071 can use a camera to capture the image of the lightning protection component 10 to obtain the connection status of the lightning protection component 10, or can use an ammeter to obtain the connection status of the lightning protection component 10. For example, when the lightning protection component 10 is connected to the protected circuit and is subjected to overvoltage, the temperature of the lightning protection component 10 does not change or changes too much, it can be determined that the lightning protection component 10 is faulty; or when the lightning protection component 10 is not connected to the protected circuit, the temperature of the lightning protection component 10 is still rising, it can be determined that the lightning protection component 10 is faulty, but not limited to this.

[0092] With such arrangement, the connection status of the two lightning protection components 10 obtained by the acquisition component 2071 and the temperatures of the two lightning protection components 10 detected by the two temperature detection devices 205 can be used to determine whether the lightning protection component 10 is faulty, and according to the fault status of the lightning protection component 10, the balance driver 2061 is controlled to drive the lever 2022 to rotate, so that the non-faulty lightning protection component 10 remains connected to the protected circuit, which is conducive to timely detection of faults, improving the reliability of the circuit system, ensuring the safety of the circuit system, and extending the service life of the lightning arrester 100, effectively improving maintenance efficiency.

[0093] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A lightning arrester, characterized in that: include: Installation platform; Two lightning protection components, the two lightning protection components are arranged on the installation platform at intervals; The axes of the two lightning protection assemblies are parallel; as well as A temperature-sensing switching device, the temperature-sensing switching device comprising two first wiring terminals and one second wiring terminal; the two first wiring terminals are respectively detachably connected to the second wiring terminal; the two first wiring terminals are connected to the two lightning protection components one by one; the second wiring terminal is electrically connected to the protected equipment; Wherein, the temperature-sensing switching device is used to connect the two first wiring terminals to the second wiring terminals alternately according to the temperature difference between the two lightning protection components; The temperature sensing switching device also includes: Two temperature-sensitive strain members, one end of each of the two temperature-sensitive strain members is respectively arranged at one end of each of the two lightning protection assemblies; the temperature-sensitive strain members can change shape according to the temperature change of the lightning protection assemblies; a connecting member, two ends of one side of the connecting member are respectively connected to the other ends of the two temperature-sensitive strain members; the connecting member can rotate around an axis perpendicular to the lightning protection assemblies; the mechanical structure of the connecting member enables the two lightning protection assemblies to be alternately connected to the protected equipment; and a movable holding member, wherein the movable holding member can move along the axial direction of the lightning protection assembly; the movable holding member is detachably connected to at least one end of the other side of the optional connecting member; The two first wiring terminals are arranged one by one at two ends of the other side of the optional connecting member; the optional connecting member is used to rotate with the volume change of the two temperature-sensitive strain members, so that at least one end of the other side of the optional connecting member is connected to the mobile holding member, and then the first wiring terminal corresponding to the lightning protection component with a low temperature is connected to the second wiring terminal through the mobile holding member; The temperature-sensing switching device further comprises an insulating connecting plate, both ends of which are connected to one end of the two lightning protection assemblies in a one-to-one correspondence; The mobile support comprises: A column, wherein the column is arranged on a side of the insulating connecting plate away from the lightning protection assembly; the height direction of the column is parallel to the axial direction of the lightning protection assembly; a movable plate, the movable plate being movably disposed on the column along a height direction of the column; and Two contacts, the two contacts are arranged on a side of the movable plate facing the selected connecting member; the two contacts are arranged at intervals; Wherein, the second terminal is arranged on a side of the movable plate away from the lightning protection assembly; and at least one of the contacts abuts against the selected connecting piece.

2. The lightning arrester according to claim 1, characterized in that: The temperature-sensitive strain member comprises: A temperature sensing element, the temperature sensing element being disposed at one end of the lightning protection assembly; the temperature sensing element being able to expand and contract along the axis direction of the lightning protection assembly as the temperature of the lightning protection assembly changes; and An elastic member, one end of which is arranged at an end of the temperature sensing member away from the lightning protection assembly; the other end of the elastic member is connected to one end of one side of the optional connecting member; and the elastic member can be extended and retracted along the axial direction of the lightning protection assembly.

3. The lightning arrester according to claim 2, characterized in that: The optional connecting piece comprises: A first support member, one end of which is disposed on a side of the insulating connecting plate away from the mounting platform; A lever, wherein two ends of the lever facing the lightning protection assembly are respectively connected to the other ends of the two temperature-sensitive strain members; the middle portion of the lever is hinged to the other end of the first support member; the axis of the hinge between the middle portion of the lever and the first support member is perpendicular to the axis of the lightning protection assembly and perpendicular to the line connecting one ends of the two lightning protection assemblies; A swing rod, one end of which is disposed at the middle of the lever; the swing rod is located on a side of the lever away from the lightning protection assembly; A second support member, one end of which is disposed on a side of the insulating connecting plate away from the mounting platform; and A tilting member, wherein the middle portion of the tilting member is hinged to the other end of the second support member; one side of the middle portion of the tilting member abuts against the other end of the swing rod; the height direction of the tilting member is the same as the axial direction of the lightning protection assembly; the distances from both ends of the tilting member to the insulating connecting plate are greater than the distance from the middle portion of the tilting member to the insulating connecting plate; at least one end of the tilting member is detachably connected to the movable support member; Wherein, the two first wiring terminals are respectively arranged at two ends of the tilting member.

4. The lightning arrester according to claim 3, characterized in that: The tilting member comprises: an arc-shaped tilting rod, wherein the middle portion of the arc-shaped tilting rod is hinged to the other end of the second support member; one side of the arc-shaped tilting rod abuts against the side of the swing rod away from the lightning protection assembly; and the opening direction of the arc-shaped tilting rod faces the lightning protection assembly; and Two contacts, the two contacts are respectively arranged at the other end of the arc-shaped tilting rod; Wherein, the two first wiring terminals are respectively arranged on the two contacts.

5. The lightning arrester according to claim 4, characterized in that: The lightning arrester also includes: Two temperature detection devices, the two temperature detection devices are arranged at one end of the two lightning protection assemblies in a one-to-one correspondence; and A balancing device is arranged on the lever; the balancing device is electrically connected to the two temperature detection devices respectively; the balancing device is used to rotate the lever until both ends of the tilting member abut against the movable holding member at the same time when the temperature detection device detects that the lightning protection assembly reaches a preset temperature.

6. The lightning arrester according to claim 5, characterized in that: The balancing device comprises: A balancing driver, the balancing driver being arranged at a hinge between the lever and the first support member; a power output end of the balancing driver being connected to the lever; and A controller is arranged on the balancing driver; the controller is electrically connected to the two temperature detection devices and the balancing driver respectively; the controller is used to control the balancing driver to drive the lever to rotate when the temperature detection device detects that the lightning protection component reaches a preset temperature.

7. The lightning arrester according to claim 6, characterized in that: The lightning arrester further comprises a fault detection device, which is arranged on a side of the insulating connecting plate away from the lightning arrester assembly; the fault detection device is electrically connected to the controller; The fault detection device is used to detect whether the lightning protection component is faulty.

8. The lightning arrester according to claim 7, characterized in that: The fault detection device comprises: A collection component, the collection component is arranged on a side of the insulating connecting plate away from the lightning protection component; the collection component is used to obtain the connection status of the two lightning protection components respectively; The controller is used to determine whether the lightning protection assembly is faulty according to the connection conditions of the two lightning protection assemblies respectively acquired by the acquisition assembly and the temperatures of the two lightning protection assemblies detected by the two temperature detection devices.

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