CN111952945A - Decoupling module and surge protector - Google Patents

Abstract

The invention discloses a decoupling module and a surge protection device. The decoupling module includes: a decoupling element and a switching section; the switching section is configured to short-circuit or not short-circuit the decoupling element. The switch section does not short-circuit the decoupling element when the decoupling element is in a first state; the switching section short-circuits the decoupling element when the decoupling element is in the second state. The decoupling module has a self-protection function, and can effectively avoid the risks of signal transmission interruption, fire initiation and the like of the surge protector caused by the conditions of degradation, overload and the like of a decoupling element.

Description

Decoupling module and surge protector

Technical Field

The invention relates to the field of surge protection, in particular to a decoupling module and a surge protector.

Background

The surge refers to instantaneous overvoltage and instantaneous overcurrent generated in an electrical system, and is also called transient pulse voltage, transient overvoltage, surge and the like, and is transient current and voltage fluctuation, and almost all electric equipment and devices can generate a surge phenomenon and are damaged by the surge. In order to avoid damage loss caused by surge as much as possible, a protection component capable of limiting overvoltage and releasing surge current is required to be configured, and the protection component can provide safety protection for electric equipment and devices.

The surge protection components in the prior art have at least the following problems:

1. a Gas Discharge Tube (GDT) is used as a surge protection member. In this way, the discharge tube has a longer response time in the intrinsic discharge process, so that a higher discharge voltage exists before the discharge tube enters a substantial discharge stage, and the protection requirement of the electric equipment with the voltage sensitive element is difficult to meet.

2. A discharge tube and a Transient Voltage Super (TVS) are used as surge protection components. A decoupling element is disposed between the discharge tube and the transient diode to balance the discharge voltage and the time response characteristics of the discharge tube and the transient diode, and the decoupling element is usually a resistor or an inductor. In this way, once the decoupling element is degraded, overloaded, etc., it is likely to cause the surge protector to interrupt signal transmission, fire, etc.

Disclosure of Invention

The present invention provides a decoupling module with a self-protection function, and also provides a surge protection device having the decoupling module.

The invention adopts a technical means that: there is provided a decoupling module comprising:

a decoupling element; and

a switching section configured to short-circuit or not short-circuit the decoupling element.

The invention adopts another technical means that: provided is a surge protector device including:

a transient diode connected in parallel between the first line and the second line;

a discharge tube coupled in parallel between the first line and the second line; and

the decoupling module is used for decoupling the optical fiber; one end of the decoupling element is connected with the transient diode, and the other end of the decoupling element is connected with the discharge tube.

Due to the adoption of the technical scheme, the decoupling module and the surge protector have the self-protection function, so that the risks of signal transmission interruption, fire and the like of the surge protector caused by the conditions of degradation, overload and the like of a decoupling element can be effectively avoided.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Wherein:

fig. 1 and 2 are schematic circuit diagrams of a surge protector in one embodiment, respectively;

FIGS. 3, 4 and 5 are schematic structural views of a decoupling module with a decoupling element in a first state according to an embodiment;

FIGS. 6, 7 and 8 are schematic structural views of a decoupling module in one embodiment with the decoupling elements in a second state;

FIG. 9 is a schematic structural view of an insulating member in one embodiment;

FIG. 10 is a schematic structural diagram of a status indicating section in one embodiment;

FIGS. 11 and 12 are schematic views of the structure of the carrier and the status indicators in one embodiment;

FIG. 13 is a schematic diagram showing the structure of a remote signaling alarm unit according to an embodiment;

fig. 14 and 15 are schematic structural views of the surge protector device in one embodiment.

In the figure: 1. transient diode, 2, discharge tube, 3, decoupling module, 4, carrier, 5, housing, 6, ground electrode, 8, first line, 9, second line, 10, input terminal, 11, output terminal, 31, decoupling element, 32, switch, 33, first conductive member, 35, remote signaling alarm, 36, circuit board, 41, support, 51, window, 52, mounting surface, 71, lock plate, 72, spring, 311, pin soldering point, 321, conductive connecting member, 322, insulating member, 323, elastic element, 324, flexible wire, 325, thermal sensing element, 341, first color display area, 342, status indicator, 343, second color display area, 351, first remote signaling alarm terminal, 352, second remote signaling alarm terminal, 321A, fixed end, 321B, elastic end, 322A, insulating plate, 322B, opening, 322C, connecting hole, 322D, positioning buckle, 342A, positioning hole.

Detailed Description

In order to make the objects, technical solutions and technical effects of the present invention more clear, the present invention is further described in detail below with reference to the accompanying drawings and the detailed description. It should be understood that the detailed description and specific examples, while indicating the preferred embodiment of the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention. The embodiments and features of the embodiments of the present invention may be combined with each other without conflict.

The present invention provides a decoupling module 3, and in one embodiment, as shown in fig. 1 and 2, the decoupling module 3 may include: a decoupling element 31 and a switching section 32; the switch section 32 is configured to short-circuit or not short-circuit the decoupling element 31. The decoupling element 31 may be a resistor or the like, such as a metal oxide resistor, a graphite resistor, or the like, and the switch portion 32 may be a member having an open and a closed operating state. In this embodiment, the decoupling module 3 may perform short circuit switching on the decoupling element 31 when the decoupling element 31 is abnormal, overloaded, overheated, degraded, and the like, so as to realize a self-protection function of the decoupling module 3, effectively avoid a failure problem of surge protection, and prevent a fire risk caused by continuous heat generation. The decoupling element 31 can realize on-load short circuit switching and seamless signal transmission, so that line signal interruption is avoided, and the influence on the transmission of line signals to be protected is avoided.

In one embodiment, as shown in fig. 1 and 2, the switch portion 32 may not short-circuit the decoupling element 31 when the decoupling element 31 is in the first state; in the case where the decoupling element 31 is in the second state, the switch portion 32 may short-circuit the decoupling element 31. The decoupling element 31 is configured in the surge protector, the first state may refer to the decoupling element 31 being in a normal state, in which case the surge protector is in the normal state, the decoupling element 31 is in the normal state, and the second state may refer to the decoupling element 31 being in an overload state, in which case the surge protector is in a degraded state, the decoupling element 31 is in the overload state. The signal flows through the decoupling element 31 without being short-circuited by the switching part 32 when the decoupling element 31 is in a normal state, and the signal flows through the switching part 32 when the decoupling element 31 is in an overload state, so that seamless switching of a signal circuit is completed, and the decoupling element 31 is gradually cooled to an ambient temperature due to no energy input, thereby preventing risks caused by fire or electrical signal failure and the like.

In one embodiment, referring to fig. 3, 4, 5, 6, 7 and 8, the switching part 32 may include: conductive connection members 321 and insulating members 322; the conductive connection member 321 may be electrically connected to a first end of the decoupling element 31 and electrically connected to or isolated from a second end of the decoupling element 31; the insulating member 322 may electrically isolate the conductive connection member 321 from the second end of the decoupling element 31, at which time the conductive connection member 321 does not short-circuit the decoupling element 31; the insulating member 322 may electrically connect the conductive connection member 321 to the second end of the decoupling element 31, and at this time, the conductive connection member 321 short-circuits the decoupling element 31. Further, the conductive connecting part 321 may be made of an elastic metal material, such as phosphor bronze or beryllium bronze, but other elastic metal materials may also be used. In order to achieve better electrical connection effect, the conductive connection member 321 may be preferably treated by gold plating or nickel plating, and other connection members having conductive characteristics may be used as the conductive connection member 321. Further, the conductive connection member 321 may include a fixed end 321A and an elastic end 321B, the fixed end 321A of the conductive connection member 321 may be electrically connected to the first end of the decoupling element 31, and the elastic end 321B of the conductive connection member 321 may be electrically connected to or separated from the second end of the decoupling element 31. Further, the decoupling module 3 may further include a circuit board 36 for mounting the decoupling element 31, the fixed end 321A of the conductive connecting member 321 may be soldered on the circuit board 36, for example, the fixed end 321A is soldered to a pad on the circuit board 36, and the pad connected to the fixed end 321A is electrically connected to the first end of the decoupling element 31 through a wire on the circuit board 36.

In one embodiment, referring to fig. 3, 4, 5, 6, 7 and 8, the decoupling module 3 may further include: a first conductive member 33 for electrically connecting to a second end of the decoupling element 31; in the first state of the decoupling element 31, the conductive connecting member 321 is electrically isolated from the first conductive member 33 by the insulating member 322.

Exemplarily, further, the decoupling module 3 of the present embodiment may further include a circuit board 36 for mounting the decoupling element 31; the first conductive member 33 may be a wiring pattern, a pad, etc. on the circuit board 36 electrically connected to the second end of the decoupling element 31, and of course, the first conductive member 33 may be another conductive member capable of electrically connecting to the second end of the decoupling element 31. When the first conductive member 33 is a pad disposed on the circuit board 36, the first conductive member 33 may be electrically connected to the second end of the decoupling element 31 through a wiring, such as a copper foil, on the circuit board 36. Further, the conductive connection member 321 may include a fixed end 321A and an elastic end 321B, the fixed end 321A of the conductive connection member 321 may be electrically connected to the first end of the decoupling element 31, and the elastic end 321B of the conductive connection member 321 may be electrically connected to or separated from the second end of the decoupling element 31. When the decoupling element 31 is in the first state, the insulating member 322 insulates and isolates the elastic end 321B of the conductive connecting member 321 from the first conductive member 33 serving as a pad, and when the decoupling element 31 is in the second state, the insulating member 322 is displaced from a position where the conductive connecting member 321 and the first conductive member 33 are insulated and isolated before the conductive connecting member 321 is displaced, the elastic end 321B of the conductive connecting member 321 is in direct contact with the first conductive member 33 serving as a pad, and the conductive connecting member 321 short-circuits the decoupling element 31.

In one embodiment, referring to fig. 3, 4, 5, 6, 7 and 8, the insulating member 322 may move when the decoupling element 31 changes from the first state to the second state.

In one embodiment, referring to fig. 5, 8 and 9, the insulating member 322 may be removed from between the conductive connecting member 321 and the first conductive member 33 when the decoupling element 31 is changed from the first state to the second state.

In one embodiment, as shown with reference to fig. 5, 8 and 9, the insulating member 322 may have an insulating plate 322A and an opening 322B; when the decoupling element 31 is in the first state, the insulating plate 322A is interposed between the conductive connecting member 321 and the first conductive member 33; when the decoupling element 31 is in the second state, the opening 322B is disposed between the conductive connecting member 321 and the first conductive member 33. Further, the insulating member 322 may be made of engineering plastic, epoxy board, PET, or similar insulating materials.

In one embodiment, referring to fig. 3, 4, 6 and 7, the switching part 32 may further include: a positioning component and a sensing component; the positioning component is connected with the insulating component 322 and used for positioning the insulating component 322; the sensing means is used to sense the state of the decoupling element 31 and to cause the positioning means to change the position of the insulating member 322.

In one embodiment, as shown with reference to fig. 3, 4, 6 and 7, the positioning member may include: a first positioning member and a second positioning member; the first positioning element is used for applying a first acting force to the insulating component 322 and can change the magnitude of the first acting force by adjusting the self telescopic state; the second positioning element is configured to apply a second acting force to the insulating member 322, where the second acting force is opposite to the first acting force; the second positioning piece can deform under the action of the induction component, and then the size of the second acting force is changed.

In one embodiment, referring to fig. 3, 6, 7 and 9, the first positioning member may include an elastic member 323 having one end connected to the insulating member 322, and the other end of the elastic member 323 is fixed by the carrier 4; the insulating member 322 may be provided with a coupling hole 322C to which the elastic member 323 is coupled. The elastic element 323 may be a tension spring, or may be another elastic element 323 with one end fixed and the other end providing tension. After the second positioning element releases the fixation of the insulating part 322, the insulating part 322 moves under the action of the tension spring serving as the first positioning element, and moves from a position corresponding to a first state, i.e., a normal working condition, of the decoupling element 31 to a position corresponding to a second state, i.e., an overload working condition, of the decoupling element 31.

In one embodiment, as shown with reference to fig. 4 and 7, the sensing part may include: a thermal sensing element 325 in thermally conductive contact with said decoupling element 31; the thermal sensing element 325 fixes the second positioning element when the decoupling element 31 is in the first state, and does not fix the second positioning element when the decoupling element 31 is in the second state. Thermal monitoring and thermal response of the decoupling element 31 can be achieved by the thermal sensing element 325.

In one embodiment, as shown with reference to fig. 3, 4, 6 and 7, the second positioning member may include a flexible wire 324; the insulating part 322 is provided with a positioning buckle 322D for the flexible lead 324 to pass through; the heat sensing element 325 includes a low temperature solder dot. The thermal sensing element 325 is in thermally conductive contact with the decoupling element 31, and heat on the decoupling element 31 can be conducted to the thermal sensing element 325.

The specific heat conduction manner and the specific selection of the heat sensing element 325 in this embodiment may be various, for example, the heat sensing element 325 is in contact with the decoupling element 31 via a heat conduction component, or the heat sensing element 325 is disposed in a heat release area of the decoupling element 31, and the heat sensing element 325 can effectively sense the heat generated on the decoupling element 31, and when the heat sensing element 325 adopts a low-temperature soldering point, the heat sensing element 325 is in heat conduction contact with the decoupling element 31, so that the heat absorbed by the heat sensing element 325 can melt the low-temperature soldering point when the decoupling element 31 is in the second state.

The present embodiment merely illustrates the manner of the thermally conductive contact, for example, the decoupling module 3 may further include a circuit board 36 for mounting the decoupling element 31. The circuit board 36 may be provided with a pad for soldering the flexible conductive wire 324, and specifically, the flexible conductive wire 324 serving as the second positioning element may be soldered at one end to the pad, and then passed through the positioning buckle 322D disposed on the insulating member 322 and soldered to the low-temperature solder point. When there are a plurality of decoupling elements 31, correspondingly, there are a plurality of soldering points as the thermal sensing elements 325, for example, each decoupling element 31 corresponds to one thermal sensing element 325, then the flexible wires 324 as the second positioning members can be soldered to the soldering points in turn, and after any soldering point is melted, the flexible wires 324 passing through the positioning buckles 322D are changed in position, and the insulating members 322 are moved. Further, the flexible wire 324 may also be used for signal transmission, such as remote signaling and alarm signal transmission. The flexible wire 324 may be a flexible metal wire, such as a copper wire, a tinned copper wire, an enameled wire, and other good metal conductor materials with flexibility.

In this embodiment, the decoupling element 31 may be soldered on the circuit board 36, the pin soldering point 311 and the low-temperature soldering point of the decoupling element 31 may be respectively located on the front side and the back side of the circuit board 36 and correspond to each other in position, that is, the pin soldering point 311 and the low-temperature soldering point of the decoupling element 31 are located on the front side and the back side of the circuit board 36 in a back-to-back manner, and meanwhile, the solder melting point of the pin soldering point 311 of the decoupling element 31 is higher than that of the low-temperature soldering point, so that heat generated by the decoupling element 31 is sufficiently and effectively transferred to the low-temperature soldering point serving as the thermal sensing element 325 through the pin soldering point 311 and the circuit board 36, and since the solder melting point of the pin soldering point 311 of the decoupling element 31 is higher than that of the low-temperature soldering point, when the low-temperature soldering point is melted, the pin soldering 311 of the decoupling element 31 does not melt. The thickness of the circuit board 36 may be 0.2mm to 1.2 mm. The thermal sensing element 325 fixes the second positioning element when the decoupling element 31 is in the first state, for example, the flexible conductive wire 324 as the second positioning element may be directly welded to the low temperature solder point as the thermal sensing element 325, when the decoupling element 31 is in the first state, the flexible conductive wire 324 as the second positioning element is fixed because the low temperature solder point is not melted, and when the decoupling element 31 is in the second state, the flexible conductive wire 324 as the second positioning element is released and fixed because the low temperature solder point is melted after absorbing the heat of the decoupling element 31.

When the decoupling element 31 is in the first state, the flexible conductive wire 324 as the second positioning member is under tension by the low temperature solder point of the thermal sensing element 325 under the force of the insulating member 322 as the first positioning member, and when the decoupling element 31 is in the second state, the flexible conductive wire 324 as the second positioning member loosens after losing the constraint of the thermal sensing element 325, thereby releasing the insulating member 322.

In one embodiment, as shown with reference to fig. 10, 11 and 12, the decoupling module 3 may further include: a state indicating section for indicating the state of the decoupling element 31; the status indicator displays a first color when the decoupling element 31 is in the first state and a second color when the decoupling element 31 is in the second state. Preferably, the first color may be green and the second color may be red.

In one embodiment, as shown with reference to fig. 10, 11 and 12, the status indication part may include: a first color display region 341 and a status indication sheet 342; the first color display region 341 is disposed on the sidewall of the loading ledge 4 for displaying a first color; the status indication sheet 342 has a second color display area 343 thereon, and the second color display area 343 is used for displaying a second color; in the case where the insulating member 322 is moved, the state indicating sheet 342 is moved to cover the first color display region 341. When there are a plurality of decoupling elements 31, any decoupling element 31 in the second state can drive the state indicating sheet 342 to change.

For example, referring to fig. 10, further, the status indicator piece 342 has a positioning hole 342A formed therein, referring to fig. 11 and 12, the carrier 4 has a supporting member 41 adapted to be connected to the positioning hole 342A, and the status indicator piece 342 is movably connected to the carrier 4 by using the positioning hole 342A and the supporting member 41. Referring to fig. 6, the status indication piece 342 is disposed in contact with the insulating member 322, and after the insulating member 322 moves, the status indication piece 342 is pushed against the insulating member 322, and then moves against the elastic force of the carrier 4 to cover the first color display region 341. Further, the positioning hole 342A may be a circular hole or a rectangular hole. Further, the status indicator piece 342 may be made of a flexible circuit board, a PET (polyester resin) flexible material, or the like. By means of this embodiment, it is possible to configure the decoupling element 31 and the applicable surge protection device with a short-circuit switching module with a degradation indication function, so that the operating condition of the decoupling module 3 can be accurately monitored.

In one embodiment, as shown in fig. 1, 2 and 13, the decoupling module 3 may further include: and a remote signaling alarm part 35 for performing remote signaling alarm when the decoupling element 31 is in the second state. This embodiment makes it possible to implement the remote alarm function of the decoupling module 3. Referring to fig. 1 and 2, the remote signaling alarm part 35 may be an alarm switch connected to the switch part 32, the alarm switch being closed when the decoupling element 31 is in the first state and being open when the decoupling element 31 is in the second state. The decoupling module 3 may include a plurality of decoupling elements 31, and any one of the decoupling elements 31 may be used to perform remote signaling alarm when abnormal. Referring to fig. 13, two remote signaling alarm terminals of the alarm switch are shown, a first remote signaling alarm terminal 351 and a second remote signaling alarm terminal 352.

In one embodiment, referring to fig. 1, 2, 5 and 8, there may be 2 decoupling elements 31, each decoupling element 31 has a corresponding conductive connecting part 321, and the conductive connecting parts 321 of the decoupling elements 31 share one insulating part 322. A thermal sensing element 325 may be associated with each decoupling element 31, and each decoupling element 31 may share a first positioning member and a second positioning member. Specifically, for example, when an overload condition occurs in any one of the decoupling elements 31, the generated heat may be conducted to the same second positioning element through the respective thermal sensing element 325, the thermal sensing element 325 releases the fixation of the second positioning element after being heated, the second positioning element becomes loose, and further the displacement limitation of the insulating member 322 as an intermediate conversion medium is released. That is, when there are a plurality of decoupling elements 31, they may share a set of the first positioning member, the second positioning member and the insulating member 322, and the corresponding conductive connecting member 321 and the thermal sensing element 325 may be provided for each decoupling element 31.

Referring to fig. 1, the decoupling module 3 is applied to a line to be protected, the line to be protected includes a first line 8 and a second line 9, the decoupling module 3 includes 2 decoupling elements 31 respectively disposed in the first line 8 and the second line 9, two ends of the decoupling element 31 disposed in the first line 8 are respectively connected to a first end of the discharge tube 2 and a first end of the transient diode 1, and two ends of the decoupling element 31 disposed in the second line 9 are respectively connected to a second end of the discharge tube 2 and a second end of the transient diode 1. Corresponding to the number of decoupling elements 31, there are also 2 conductive connecting members 321.

Referring to fig. 2, the decoupling module 3 may also be applied to two lines to be protected, and of course, the decoupling module 3 may also be applied to more than two lines to be protected, and in practical application, the decoupling module 3 may be configured according to a user requirement.

The present invention also provides a surge protector device, which in one embodiment, as shown with reference to fig. 1 to 15, may include: a transient diode 1, a discharge tube 2, and a decoupling module 3 according to any of the above embodiments; the transient diode 1 is coupled in parallel between a first line 8 and a second line 9; the discharge tubes 2 are coupled in parallel between a first line 8 and a second line 9; the decoupling element 31 has one end connected to the transient diode 1 and the other end connected to the discharge tube 2. In this embodiment, the discharge tube 2 constitutes a coarse protection unit, the transient diode 1 constitutes a fine protection unit, and the discharge tube 2, the transient diode 1 and the decoupling module 3 jointly constitute a surge protection structure combining the coarse protection unit and the fine protection unit. The transient diode 1 described in this embodiment may also be replaced by a combination of the transient diode 1 and a diode. The discharge tube 2 may be a triode discharge tube 2. The first line 8 and the second line 9 may be signal transmission lines, for example, the first line 8 may be a signal input line, and the second line 9 may be a signal output line.

The surge protector of the embodiment can be applied to lines with surge protection requirements, such as signal transmission lines, other lines with signal protection requirements, and the like. The components of the surge protector can be integrated into an integral structure and can be arranged on a signal line, electric equipment, a device and the like to provide good safety protection.

In one embodiment, as shown with reference to fig. 1 to 15, the surge protector device may further include: a carrier 4 and an outer envelope 5, the carrier 4 being adapted to carry the transient diode 1, the discharge tube 2 and the decoupling module 3; the housing 5 is used for accommodating the surge protector; the housing 5 is provided with a window 51. The window 51 may be used to display a color indicating the state of the decoupling element 31, for example, to expose a first color display area 341 provided on the side wall of the carrier 4 or a second color display area 343 provided on the state indicating sheet 342. When the decoupling element 31 enters the second state from the first state, the color shown in the window 51 is switched from the first color to the second color, for example, the color is changed from green to red, so as to implement a degradation indication alarm, and facilitate the judgment of the operating state of the decoupling element 31.

The number of the surge protection devices accommodated in the housing 5 of the present embodiment may be at least 1, and when there are a plurality of surge protection devices, they may be arranged in the housing 5. Each surge protector can be provided with an input end 10 and an output end 11 for connecting with a line with surge protection requirements, and further, the input end 10 and the output end 11 can adopt a PUSH IN connection mode of a spring 72 connection technology as a terminal so as to realize quick connection and save installation and maintenance cost.

In one embodiment, as shown with reference to fig. 14 and 15, the housing 5 has a mounting face 52; the surge protector device may further include: the grounding electrode 6 and the detachable connection structure, wherein the grounding electrode 6 is arranged on the mounting surface 52; the releasable attachment structure is provided on the mounting face 52 for mounting the surge protector device. Further, the detachable connection structure includes: a lock plate 71 and a spring 72 connected to the lock plate 71. Further, the external sliding rail can be engaged and mounted through the detachable connection structure, and particularly, the locking plate 71 can lock the external sliding rail under the elastic force of the spring 72; the outer sliding track may be a TH35 type rail, but may also be other types of rails. The grounding electrode 6 is used for grounding the whole surge protector and can be made of elastic materials.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention. Furthermore, although specific terms are employed herein, they are used in a generic and descriptive sense only and not for purposes of limitation.

Claims (15)

1. A decoupling module, characterized in that said decoupling module comprises:

a decoupling element; and

a switching section configured to short-circuit or not short-circuit the decoupling element;

the switch section does not short-circuit the decoupling element when the decoupling element is in a first state; the switching section short-circuits the decoupling element when the decoupling element is in the second state.

2. The decoupling module of claim 1, wherein the switching section comprises:

a conductive connecting member; the conductive connecting part is electrically connected with the first end of the decoupling element and is electrically connected with or isolated from the second end of the decoupling element; and

an insulating member; the insulating member can electrically isolate the conductive connection member from the second end of the decoupling element.

3. The decoupling module of claim 2,

the decoupling module further comprises: the first conductive piece is electrically connected with the second end of the decoupling element;

the conductive connecting member is electrically isolated from the first conductive member by the insulating member with the decoupling element in the first state;

when the decoupling element changes from the first state to the second state, the insulating member moves.

4. The decoupling module of claim 3, wherein said insulating member is removed from between said conductive connecting member and said first conductive member when said decoupling element changes from said first state to said second state.

5. The decoupling module of claim 3,

the insulating member has an insulating plate and an opening;

when the decoupling element is in the first state, the insulating plate is arranged between the conductive connecting part and the first conductive piece; when the decoupling element is in the second state, the opening is disposed between the conductive connecting member and the first conductive member.

6. The decoupling module of claim 3, wherein the switching section further comprises:

the positioning component is connected with the insulating component and used for positioning the insulating component; and

and the sensing part is used for sensing the state of the decoupling element and prompting the positioning part to change the position of the insulating part.

7. The decoupling module of claim 6, wherein the positioning member comprises:

the first positioning piece is used for applying a first acting force to the insulating component and can change the magnitude of the first acting force by adjusting the self telescopic state;

the second positioning piece is used for applying a second acting force to the insulating component, and the direction of the second acting force is opposite to that of the first acting force; the second positioning piece can deform under the action of the induction component, and then the size of the second acting force is changed.

8. The decoupling module of claim 7,

the sensing part includes: a thermal sensing element in thermally conductive contact with the decoupling element; the thermal sensing element fixes the second positioning element when the decoupling element is in the first state, and does not fix the second positioning element when the decoupling element is in the second state.

9. The decoupling module of claim 7,

the first positioning piece comprises an elastic element with one end connected to the insulating part, and the other end of the elastic element is fixed by the bearing frame;

and the insulating part is provided with a connecting hole for connecting the elastic element.

10. The decoupling module of claim 8,

the second positioning part comprises a flexible lead;

the insulating part is provided with a positioning buckle for the flexible lead to pass through;

the heat sensing element includes a low temperature solder dot.

11. The decoupling module of claim 3, further comprising:

a state indicating part for indicating the state of the decoupling element; the status indication portion displays a first color when the decoupling element is in a first state and a second color when the decoupling element is in a second state.

12. The decoupling module of claim 11, wherein the status indicator comprises:

the first color display area is arranged on the side wall of the bearing frame and is used for displaying a first color;

the status indication sheet is provided with a second color display area, and the second color display area is used for displaying a second color; in the case where the insulating member is moved, the status indication sheet is moved to cover the first color display region.

13. The decoupling module of claim 2,

the decoupling module further comprises: a remote signaling alarm part for performing remote signaling alarm when the decoupling element is in the second state;

there are 2 decoupling elements, each decoupling element corresponding to a conductive connecting part, and the conductive connecting parts of the decoupling elements share one insulating part.

14. A surge protector device, comprising:

a transient diode connected in parallel between the first line and the second line;

a discharge tube coupled in parallel between the first line and the second line; and

the decoupling module of any one of claims 1 to 13; one end of the decoupling element is connected with the transient diode, and the other end of the decoupling element is connected with the discharge tube.

15. A surge protector device as claimed in claim 14, further comprising:

a carrier for carrying the transient diode, the discharge tube and the decoupling module;

a housing for housing the surge protector; the shell is provided with a window.

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