CN216719809U

CN216719809U - Thrust breaker

Info

Publication number: CN216719809U
Application number: CN202121860053.2U
Authority: CN
Inventors: 田雷; 张俊峰; 李先军
Original assignee: Xi'an J & R Fire Fighting Equipment Co ltd
Current assignee: Hubei Jiandun Fire Technology Co Ltd
Priority date: 2021-08-10
Filing date: 2021-08-10
Publication date: 2022-06-10
Anticipated expiration: 2031-08-10

Abstract

The utility model relates to a thrust breaker. This thrust circuit breaker includes: the electrifying assembly comprises a mounting seat and a conductive piece, wherein the mounting seat is provided with a first electrode and a second electrode, and the conductive piece is arranged on the mounting seat and can move to a first position and a second position relative to the mounting seat under the action of external force; when the conductive piece is positioned at the first position, the conductive piece is electrically connected with the first electrode and the second electrode; when the conductive piece is positioned at the second position, the conductive piece is separated from at least one of the first electrode and the second electrode; the gas generating component comprises a gas generating agent arranged corresponding to the conductive piece, and gas flow generated when the gas generating agent is started can push the conductive piece to move from the first position to the second position; and the starting assembly comprises a starting line, and the starting line extends to the gas generating agent and is used for starting the gas generating agent when a fire disaster happens.

Description

Thrust breaker

Technical Field

The utility model relates to the technical field of circuit protection, in particular to a thrust breaker.

Background

When a fire occurs, for example, a fire caused by combustible substances ignited on a hot surface of an electric heating appliance, a fire caused by lightning, or a fire caused by static electricity, if the electric equipment cannot be powered off in time, the electric equipment may be damaged more, and the difficulty of fire extinguishing may be further increased. Conventionally, the protection circuit of the electrical equipment is easy to damage the circuit and cannot play a role in power-off protection.

SUMMERY OF THE UTILITY MODEL

Therefore, it is necessary to provide a thrust circuit breaker that improves the above-mentioned drawbacks, in order to solve the problem that the protection circuit of the electrical equipment in the prior art is prone to circuit damage, and thus cannot perform the power-off protection function.

A thrust interrupter, comprising:

the power-on assembly comprises a mounting seat and a conductive piece, wherein the mounting seat is provided with a first electrode and a second electrode, and the conductive piece is arranged on the mounting seat and can move to a first position and a second position relative to the mounting seat under the action of external force; when the conductive piece is positioned at the first position, the conductive piece is electrically connected with the first electrode and the second electrode; the conductive piece is separated from at least one of the first electrode and the second electrode when located at the second position;

the gas generating component comprises a gas generating agent arranged corresponding to the conductive piece, and gas flow generated when the gas generating agent is started can push the conductive piece to move from the first position to the second position; and

the starting assembly comprises a starting line, the starting line extends to the gas generating agent position and is used for starting the gas generating agent when a fire disaster happens.

In one embodiment, the gas production assembly further comprises a housing, the housing is provided with a containing cavity and a nozzle communicated with the containing cavity, the gas production agent is contained in the containing cavity, the nozzle is arranged towards the conductive member, and one end of the starting wire extends into the containing cavity.

In one embodiment, the conductive member is rotatably connected to the first electrode, the conductive member is capable of rotating to the first position and the second position relative to the first electrode, the conductive member is electrically connected to the second electrode when the conductive member rotates to the first position, and the conductive member is separated from the second electrode when the conductive member rotates to the second position.

In one embodiment, the power-on assembly further comprises a windward plate fixedly connected to the conductive piece, and the gas generating agent is arranged corresponding to the windward plate, so that the airflow generated after the gas generating agent is started is sprayed towards the windward plate.

In one embodiment, the second electrode includes two conductive elastic pieces connected to each other, a clamping position is formed between the two conductive elastic pieces, and when the conductive piece is located at the second position, the conductive piece is clamped at the clamping position between the two conductive elastic pieces.

In one embodiment, the energizing assembly further comprises a sliding seat and a piston, the sliding seat is fixedly connected to the mounting seat and is provided with a sliding channel and an accommodating cavity communicated with the sliding channel, the piston is in sliding fit in the sliding channel, the gas generating agent is accommodated in the accommodating cavity, and when the piston is started, the generated gas flow enters the sliding channel to push the piston to move along the sliding channel;

the conductive piece is connected to the piston and can move to the first position and the second position along with the piston, and one end of the starting line extends to the containing cavity.

In one embodiment, the power-on assembly further comprises a clamping seat installed on the installation seat, and when the conductive piece moves to the second position along with the piston, the conductive piece is clamped and matched with the clamping seat.

In one embodiment, the mounting seat has an air generating cavity and an opening communicated with the air generating cavity, the first electrode and the second electrode are respectively disposed on inner walls of two opposite sides of the air generating cavity, the conductive member abuts against between the first electrode and the second electrode, the air generating agent is disposed in the air generating cavity and located on a side of the conductive member away from the opening, and the air flow generated when the air generating agent is started pushes the conductive member to move towards the opening and separate from the first electrode and the second electrode.

In one embodiment, the first electrode and the second electrode are provided with an insulating member on a side facing the opening, the first position is located on a side of the insulating member facing the first electrode and the second electrode, and the second position is located on a side of the insulating member facing away from the first electrode and the second electrode.

In one embodiment, the starting line is a fuse, one end of the fuse extends to the gas producing agent, and the other end of the fuse extends to a protection area; or

The starting assembly further comprises an electric initiator, the starting line is an electric starting line, the electric initiator is arranged at the gas generating agent, one end of the electric starting line is electrically connected with the electric initiator, and the other end of the electric starting line is electrically connected with an external controller.

The thrust breaker is initially arranged at a first position, and at the moment, the first electrode and the second electrode are electrically conducted through the conductive piece, so that power is supplied to electrical equipment. When a fire disaster happens, the starting line starts the gas generating agent, the gas generating agent quickly generates airflow which is sprayed towards the conductive piece after being started, and then the conductive piece is pushed to move from the first position to the second position, so that the first electrode and the second electrode are disconnected, and the power failure of the electrical equipment is realized.

Compared with the prior art, the thrust breaker provided by the utility model has the advantages that the gas generating agent is started by using the starting line when a fire disaster happens, and the conductive piece is pushed to be powered off by using the airflow generated by the gas generating agent, so that the phenomenon that the electrical equipment cannot be powered off in time due to the damage of a protection circuit is avoided, and the electrical equipment can be powered off in time.

Drawings

Fig. 1 is a schematic structural diagram of a thrust interrupter in an embodiment of the present invention;

fig. 2 is a bottom view of a conductive member of the thrust interrupter shown in fig. 1;

FIG. 3 is a schematic diagram of a thrust interrupter in another embodiment of the present invention;

FIG. 4 is a cross-sectional view of a thrust interrupter in another embodiment of the present invention (with the conductive member in the first position);

FIG. 5 is a cross-sectional view of the thrust interrupter shown in FIG. 4 (with the conductive member in a second position);

FIG. 6 is a cross-sectional view of a thrust interrupter in another embodiment of the present invention;

fig. 7 is a cross-sectional view of a thrust interrupter in another embodiment of the present invention.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention more comprehensible, embodiments accompanying figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the utility model and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the utility model.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "above," and "over" a second feature may be directly on or obliquely above the second feature, or simply mean that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

Referring to fig. 1 and 2, an embodiment of the utility model provides a thrust breaker, which includes a power-on component 10, a gas generating component 20, and a starting component (not shown).

The energizing assembly 10 comprises a mounting seat 11 and a conductive piece 12, wherein the mounting seat 11 is provided with a first electrode 111 and a second electrode 112, and the first electrode 111 and the second electrode 112 are connected to a device power supply and used for controlling the on and off of the device power supply. That is, when the first electrode 111 and the second electrode 112 are electrically conducted, the power of the device is turned on to supply power to the electrical device; when the first electrode 111 is disconnected from the second electrode 112, the power of the device is turned off, thereby achieving the power-off of the electrical device. The conductive member 12 is disposed on the mounting seat 11 and can move to a first position (see fig. 1) and a second position relative to the mounting seat 11 under the action of an external force. When conductive member 12 is in the first position, conductive member 12 is electrically connected to first electrode 111 and second electrode 112, i.e., first electrode 111 and second electrode 112 are electrically conducted through conductive member 12. When the conductive member 12 is located at the second position, the conductive member 12 is separated from at least one of the first electrode 111 and the second electrode 112, thereby disconnecting the first electrode 111 and the second electrode 112.

Gas generating assembly 20 includes a gas generating agent 21 disposed corresponding to conductive member 12, wherein the gas generating agent 21 generates a gas flow when activated to move conductive member 12 from the first position to the second position. The activation assembly comprises an activation line 31, which activation line 31 extends to the gas generant 21 for activating the gas generant 21 in the event of a fire.

Thus, initially, conductive member 12 is in a first position (shown in FIG. 1), wherein first electrode 111 and second electrode 112 are electrically connected through conductive member 12 to provide power to the electrical device. When a fire breaks out, the starting line 31 starts the gas generating agent 21, and after the gas generating agent 21 is started, the gas generating agent rapidly generates airflow which is sprayed towards the conductive member 12, so that the conductive member 12 is pushed to move from the first position to the second position, the first electrode 111 and the second electrode 112 are disconnected, and the power failure of the electrical equipment is realized.

Compared with the prior art, the thrust breaker provided by the utility model has the advantages that the gas generating agent 21 is started by the starting line 31 when a fire disaster happens, and the conductive piece 12 is pushed to be powered off by the airflow generated by the gas generating agent 21, so that the phenomenon that the electrical equipment cannot be powered off in time due to the damage of a protection circuit is avoided, namely, the electrical equipment can be powered off in time.

Alternatively, the gas generant 21 may employ an aerosol fire suppressant. Of course, other gas generating agents 21 may be used as long as they can be activated by heat and generate a large amount of gas, and are not limited herein.

In one embodiment, the initiation line 31 is a fuse, one end of which extends to the gas generant 21 and the other end of which extends to the containment area. Thus, when a fire breaks out in the protected area, a high temperature generated by the fire ignites the fuse disposed at one end of the protected area, and the fuse burns to the gas generating agent 21, thereby activating the gas generating agent 21. Alternatively, the fuse may be a heat-sensitive wire.

Of course, it is not limited to the use of a fuse to activate the gas generant 21, and in other embodiments, the activation line 31 may be an electrical activation line, with the activation assembly further including an electrical initiator. The electric initiator is arranged at the gas generating agent 21, one end of the electric starting line is electrically connected with the electric initiator, and the other end of the electric starting line is electrically connected with the external controller. In this way, when a fire occurs, the external controller receives a fire signal and controls the electric initiator to ignite through the electric starting line, so as to start the gas generating agent 21 and further to drive the conductive member 12 to be powered off. It should be noted that, in this embodiment, a fire detector is disposed in the protected area, and the fire detector is in communication connection with an external controller, so that when the fire detector detects a fire in the protected area, the fire detector sends a fire signal to the external controller, and the external controller receives the fire signal and controls the electric initiator to ignite through an electric starting line, so as to start the gas generating agent 21. Alternatively, the electrical initiator may be an electrical firing head.

In the embodiment of the present invention, the gas generation assembly 20 further includes a housing 22, and the housing 22 has a housing cavity 221 and a nozzle 223 communicating with the housing cavity 221. The gas generating agent 21 is accommodated in the accommodating chamber 221, the nozzle 223 is disposed toward the conductive member 12, and one end of the start line 31 extends into the accommodating chamber 221. Thus, when a fire occurs, the starting line 31 starts the gas generating agent 21 in the accommodating cavity 221, and after the gas generating agent 21 is started, a large amount of gas is generated and is sprayed from the nozzle 223 towards the conductive member 12, so that the conductive member 12 is pushed to move from the first position to the second position, and the power failure is realized. The containing cavity 221 is used for containing the gas generating agent 21, and the airflow is sprayed out through the nozzle 223, so that on one hand, the gas generated by the gas generating agent 21 is gathered in the containing cavity 221 and sprayed out to the conductive part 12 through the nozzle 223, the force of airflow spraying is increased, and the pushing force acting on the conductive part 12 is improved; on the other hand, the direction of the airflow eruption is limited, so that the airflow is accurately erupted towards the conductive piece 12, and the pushing force acting on the conductive piece 12 is favorably promoted.

In an embodiment of the present invention, the conductive member 12 is rotatably connected to the first electrode 111, and the conductive member 12 can rotate to a first position and a second position relative to the first electrode 111. When the conductive member 12 rotates to the first position, the conductive member 12 is electrically connected to the second electrode 112, so as to supply power to the electrical equipment. When conductive member 12 is rotated to the second position, conductive member 12 is separated from second electrode 112, thereby powering down the electrical device. In this way, when a fire breaks out in the protected area, the gas generating agent 21 is activated by the activation line 31, and the activated gas generating agent 21 generates a large amount of gas and emits the gas toward the conductive member 12, thereby pushing the conductive member 12 to rotate from the first position to the second position, i.e., the conductive member 12 is separated from the second electrode 112, thereby realizing the power-off of the electrical equipment.

Alternatively, one end of the conductive member 12 is hinged to the first electrode 111, and the other end of the conductive member 12 can be connected to or separated from the second electrode 112. Further, the second electrode 112 includes two conductive elastic pieces connected to each other, and a clamping position is formed between the two conductive elastic pieces. When conductive member 12 is in the second position, conductive member 12 is clamped in the clamping position between the two conductive elastic pieces. Therefore, the two conductive elastic pieces are utilized to clamp the conductive piece 12, that is, the conductive piece 12 can be clamped into the clamping position between the two conductive elastic pieces under the action of external force to be moved, so that electric conduction is realized. That is, electrical conduction between the conductive member 12 and the second electrode 112 is made only when the conductive member 12 enters the clamping position between the two conductive elastic pieces. Therefore, when the conductive device 12 is pushed to the second position by the airflow and then rebounds, the rebounding force is not enough to allow the conductive device 12 to enter the clamping position between the two conductive elastic pieces again.

Of course, in other embodiments, in order to prevent the conductive member 12 from rebounding to the first position again and causing failure of power cut, the clamping seat 40 (see fig. 1) may be installed on the installation seat 11. When the conductive member 12 is located at the first position, the conductive member 12 is snap-fitted to the snap-fit seat 40, so as to fix the conductive member 12. That is, the conductive member 12 and the second electrode 112 are electrically conducted only when the conductive member 12 is engaged with the engaging seat 40. Therefore, when the conductive member 12 is pushed to the second position by the airflow and then rebounds, the rebounding force is not enough to allow the conductive member 12 to be clamped with the clamping seat 40 again, so that the conductive member 12 cannot rebound to the first position electrically connected with the second electrode 112.

Specifically, the power-on assembly 10 further includes a windward plate 121 fixedly connected to the conductive member 12. The gas generant 21 is disposed corresponding to the windward plate 121 such that an air flow generated after the gas generant 21 is activated is emitted toward the windward plate 121. Thus, the windward plate 121 is provided to improve the surface area for receiving the airflow impact, and further improve the pushing force for pushing the conductive member 12 to rotate from the first position to the second position. It should be noted that, the gas generating agent 21 is arranged corresponding to the windward plate 121, which means that the spraying direction of the gas generated after the gas generating agent 21 is started is towards the windward plate 121, that is, the nozzle 223 of the housing 22 is arranged towards the windward plate 121, so that the windward plate 121 is pushed by the airflow, and the conductive member 12 is driven to rotate from the first position to the second position.

Further, referring to fig. 1, the gas generating assembly 20 is located between the first electrode 111 and the second electrode 112, and when the conductive member 12 rotates to the first position, the windward plate 121 is located above the gas generating assembly 20, that is, the windward plate 121 is connected to the middle portion of the conductive member 12. Alternatively, in other embodiments, please refer to fig. 3, the gas generating assembly 20 is located on a side of the second electrode 112 away from the first electrode 111, and when the conductive member 12 rotates to the first position, the windward plate 121 is located above the gas generating assembly 20, that is, the windward plate 121 is connected to one end of the conductive member 12 away from the first electrode 111.

Referring to fig. 4 and 5, in another embodiment of the present invention, the power-on assembly 10 further includes a sliding seat 13 and a piston 14, the sliding seat 13 is fixedly connected to the mounting seat 11 and has a sliding channel 131 and a receiving cavity 132 communicated with the sliding channel 131. The piston 14 is a sliding fit in the sliding channel 131. The gas generating agent 21 is accommodated in the accommodating cavity 132, and the gas flow generated when the gas generating agent is activated enters the sliding channel 131, so as to push the piston 14 to move along the sliding channel 131. Conductive member 12 is coupled to piston 14 and is capable of following piston 14 to move to a first position (shown in fig. 4) and a second position (shown in fig. 5). When the conductive member 12 is moved to the first position, the conductive member 12 is electrically connected to the first electrode and the second electrode. When the conductive member 12 is moved to the second position, the conductive member 12 is separated from at least one of the first electrode and the second electrode. One end of the activation line extends into the housing chamber 132 to activate the gas generant 21 in the housing chamber 132 in time in the event of a fire.

Thus, when a fire breaks out in the protected area, the starting line 31 starts the gas generating agent 21, and after the gas generating agent 21 is started, gas generated is gathered in the accommodating cavity 132 and sprayed from the accommodating cavity 132 to the sliding channel 131, so as to push the piston 14 to move along the sliding channel 131 and drive the conductive member 12 to move from the first position (see fig. 4) to the second position (see fig. 5), thereby realizing the power failure.

Specifically, the power-on assembly 10 further includes a snap seat 40 mounted to the mounting seat 11. When conductive piece 12 moves to the second position following piston 14, conductive piece 12 is in clamping fit with clamping seat 40, so that conductive piece 12 is fixed, and conductive piece 12 is prevented from rebounding to the first position, which results in failure of power failure.

Specifically, conductive member 12 is rotatably connected to the first electrode, and conductive member 12 is fixedly connected to piston 14, and sliding channel 131 extends along an arc around the rotational axis of conductive member 12. In this way, when the piston 14 slides along the sliding channel 131 under the pushing action of the airflow, the conductive member 12 is driven to rotate until the conductive member 12 rotates to the second position, and the conductive member 12 is separated from the second electrode, so as to achieve the power-off function.

Referring to fig. 6 and 7, in another embodiment of the present invention, the mounting base 11 has a gas generating cavity 113 and an opening 114 communicating with the gas generating cavity 113. The first electrode 111 and the second electrode 112 are respectively disposed on the inner walls of the two opposite sides of the gas generating cavity 113, and the conductive member 12 abuts between the first electrode 111 and the second electrode 112. Gas generating component 20 is disposed in gas generating cavity 113 and located on a side of conductive member 12 facing away from opening 114. The gas generating agent 21 pushes the conductive member 12 to move toward the opening 114 by the gas flow generated when activated and to be separated from the first electrode 111 and the second electrode 112, thereby accomplishing the power-off.

In this way, when a fire occurs in the protected area, the gas generating agent 21 is activated by the activation line 31, and a large amount of gas is generated after the gas generating agent 21 is activated and is sprayed toward the conductive member 12, so that the conductive member 12 is pushed to move toward the opening 114, and the conductive member 12 is separated from the first electrode 111 and the second electrode 112, i.e., the power failure is realized.

It will be appreciated that when the conductive member 12 abuts between the first electrode 111 and the second electrode 112, the conductive member 12 is in the first position (see fig. 6). When conductive member 12 is moved toward opening 114 and separated from first electrode 111 and second electrode 112 by the urging of the airflow, conductive member 12 is in the second position.

It should be noted that, it is understood that the conductive member 12 can be directly pushed out of the gas generation cavity 113 through the opening 114 under the impact of the gas flow. In order to ensure that the conductive member 12 can be pushed out of the opening 114 by the airflow generated by the gas generating agent 21, the first electrode 111 and the second electrode 112 are disposed close to the opening 114 so that the conductive member 12 abutting between the first electrode 111 and the second electrode 112 is close to the opening 114, thereby distinguishing that the conductive member 12 can be pushed out of the opening 114 by the airflow generated after the gas generating agent 21 is activated.

Of course, in other embodiments, the conductive member 12 may not be pushed out of the gas generating cavity 113, but only the conductive member 12 may be pushed away from the first electrode 111 and the second electrode 112. In specific embodiments, the first electrode 111 and the second electrode 112 are provided with an insulating member 1111 at a side facing the opening 114. The first position is located on a side of the insulating member 1111 facing the first electrode 111 and the second electrode 112, and the second position is located on a side of the insulating member 1111 facing away from the first electrode 111 and the second electrode 112. Thus, when a fire breaks out in the protected area, the start line 31 starts the gas generating agent 21, and after the gas generating agent 21 is started, a large amount of gas is generated and sprayed towards the conductive member 12, so that the conductive member 12 is pushed to move towards the opening 114 to the side, away from the first electrode 111 and the second electrode 112, of the insulating member 1111, and at the moment, the conductive member 12 is separated from the first electrode 111 and the second electrode 112, namely, the power failure is realized. In this way, the insulating member 1111 is disposed such that the conductive member 12 is blocked by the insulating member 1111 when falling back, thereby preventing the conductive member 12 from falling back to be electrically connected to the first electrode 111 and the second electrode 112 again, which may result in failure of power cut.

It should be noted that the insulating member 1111 has elasticity, and the height of the insulating member 1111 protruding from the inner wall of the gas generating chamber 113 is greater than the height of the first electrode 111 and the second electrode 112 protruding from the inner wall of the gas generating chamber 113, so that the conductive member 12 crosses the insulating member 1111 under the impact of the airflow to reach the side of the insulating member 1111 away from the first electrode 111 and the second electrode 112. When the conductive member 12 falls back, the conductive member 12 is blocked by the insulating member 1111, so that the conductive member 12 can fall back only onto the insulating member 1111 and is not electrically connected to the first electrode 111 and the second electrode 112 again. Alternatively, the insulating member 1111 may be made of rubber or the like, and is not limited thereto, as long as it has elasticity and is insulating.

All possible combinations of the technical features of the above embodiments may not be described for the sake of brevity, but should be considered as within the scope of the present disclosure as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the utility model. It should be noted that various changes and modifications can be made by those skilled in the art without departing from the spirit of the utility model, and these changes and modifications are all within the scope of the utility model. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. A thrust force interrupter, comprising:

an energizing assembly (10) comprising a mounting seat (11) and a conductive member (12), wherein the mounting seat (11) is provided with a first electrode (111) and a second electrode (112), the conductive member (12) is arranged on the mounting seat (11) and can move relative to the mounting seat (11) under the action of external force to a first position electrically connected with the first electrode (111) and the second electrode (112) and a second position separated from at least one of the first electrode (111) and the second electrode (112);

the gas production assembly (20) comprises a gas production agent (21) arranged corresponding to the conductive piece (12), and gas flow generated when the gas production agent (21) is started can push the conductive piece (12) to move from the first position to the second position; and

-an activation assembly comprising an activation line (31), the activation line (31) extending to the gas generant (21) for activating the gas generant (21) in case of fire.

2. The thrust circuit breaker according to claim 1, wherein the gas generating assembly (20) further comprises a housing (22), the housing (22) has a housing cavity (221) and a nozzle (223) communicated with the housing cavity (221), the gas generating agent (21) is housed in the housing cavity (221), the nozzle (223) is arranged towards the conductive member (12), and one end of the starting line (31) extends into the housing cavity (221).

3. Thrust circuit breaker according to claim 1, characterized in that said conductive element (12) is rotatably connected to said first electrode (111), said conductive element (12) being rotatable with respect to said first electrode (111) to said first position and to said second position, said conductive element (12) being electrically connected to said second electrode (112) when said conductive element (12) is rotated to said first position, and said conductive element (12) being disconnected from said second electrode (112) when said conductive element (12) is rotated to said second position.

4. The thrust force interrupter according to claim 3, wherein the energizing assembly (10) further comprises a windward plate (121) fixedly connected to the conductive member (12), and the gas generating agent (21) is arranged corresponding to the windward plate (121) so that an air flow generated after the gas generating agent (21) is activated is emitted toward the windward plate (121).

5. The thrust circuit breaker according to claim 3, characterized in that said second electrode (112) comprises two conductive elastic pieces connected to each other, forming a clamping position therebetween, said conductive piece (12) being clamped in said clamping position therebetween when said conductive piece (12) is in said second position.

6. The thrust circuit breaker according to claim 1, wherein the power-on assembly (10) further comprises a sliding seat (13) and a piston (14), the sliding seat (13) is fixedly connected to the mounting seat (11) and has a sliding channel (131) and a receiving cavity (132) communicated with the sliding channel (131), the piston (14) is slidably fitted in the sliding channel (131), the gas generating agent (21) is received in the receiving cavity (132), and when the power-on assembly is started, the generated gas flow enters the sliding channel (131) to further push the piston (14) to move along the sliding channel (131);

the conductive piece (12) is connected to the piston (14) and can move to the first position and the second position along with the piston (14), and one end of the starting wire (31) extends to the containing cavity (132).

7. Thrust circuit breaker according to claim 6, characterized in that said energizing assembly (10) further comprises a snap seat (40) mounted to said mounting seat (11), said conductive piece (12) being snap-fitted with said snap seat (40) when said conductive piece (12) follows said piston (14) to move to said second position.

8. The thrust circuit breaker according to claim 1, wherein the mounting seat (11) has a gas generating cavity (113) and an opening (114) communicated with the gas generating cavity (113), the first electrode (111) and the second electrode (112) are respectively arranged on the inner walls of two opposite sides of the gas generating cavity (113), the conductive member (12) abuts between the first electrode (111) and the second electrode (112), the gas generating agent (21) is arranged in the gas generating cavity (113) and is positioned on one side of the conductive member (12) departing from the opening (114), and the gas flow generated when the gas generating agent (21) is activated pushes the conductive member (12) to move towards the opening (114) and is separated from the first electrode (111) and the second electrode (112).

9. Thrust interrupter according to claim 8, characterized in that the side of the first electrode (111) and the second electrode (112) facing the opening (114) is provided with an insulation (1111), the first position being located on the side of the insulation (1111) facing the first electrode (111) and the second electrode (112), the second position being located on the side of the insulation (1111) facing away from the first electrode (111) and the second electrode (112).

10. Thrust interrupter according to claim 1, characterized in that the activation wire (31) is a fuse, one end of which extends to the gas generant (21) and the other end of which extends to a protection zone; or

The starting assembly further comprises an electric initiator, the starting line (31) is the electric starting line (31), the electric initiator is arranged at the position of the gas generating agent (21), one end of the electric starting line (31) is electrically connected with the electric initiator, and the other end of the electric starting line (31) is electrically connected with an external controller.