CN215771048U

CN215771048U - Circuit breaker

Info

Publication number: CN215771048U
Application number: CN202121888372.4U
Authority: CN
Inventors: 王祺; 张俊峰; 李先军
Original assignee: Hubei Jiandun Fire Technology Co Ltd
Current assignee: Hubei Jiandun Fire Technology Co Ltd
Priority date: 2021-08-10
Filing date: 2021-08-10
Publication date: 2022-02-08
Anticipated expiration: 2031-08-10

Abstract

The utility model relates to an interrupter. The circuit breaker comprises a conductive piece connected in a circuit between a power supply and electrical equipment and a medicament layer coated on the conductive piece, wherein the medicament layer can be heated and started, and the started medicament layer generates heat and fuses the conductive piece. Above-mentioned circuit breaker, when the conflagration breaing out, the high temperature that the conflagration produced starts the medicament layer, and the medicament layer produces a large amount of heats after being started rapidly to fusing electrically conductive piece makes the circuit disconnection between power and the electrical equipment, and then realizes the outage to electrical equipment. Compared with the prior art, the circuit breaker provided by the utility model has the advantages that the heat generated by the fire disaster is utilized to start the medicament layer when the fire disaster happens, and then the heat generated by the medicament layer is utilized to fuse the conductive piece for power off, so that the phenomenon that the electrical equipment cannot be powered off in time due to the damage of a protection circuit is avoided without depending on a power supply or a standby power supply of the electrical equipment, and the electrical equipment can be powered off in time.

Description

Circuit breaker

Technical Field

The utility model relates to the technical field of power-off protection, in particular to a power-off device.

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 thunder or static electricity, and the like, the electric equipment needs to be powered off in time so as to avoid damage to the electric equipment and reduce the fire extinguishing difficulty. However, a general protection circuit needs to rely on a power supply or a standby power supply to perform power failure protection on electrical equipment, and the protection circuit is also easy to damage, so that a power failure phenomenon often occurs.

SUMMERY OF THE UTILITY MODEL

Therefore, it is necessary to provide an electrical breaker for overcoming the above-mentioned drawbacks, in order to solve the problems that the protection circuit in the prior art needs to rely on a power supply or a backup power supply to perform power-off protection on electrical equipment, and the protection circuit is also easily damaged and often fails in power-off.

An electric breaker comprises a conductive piece connected in a circuit between a power supply and electric equipment and a medicament layer coated on the conductive piece, wherein the medicament layer can be heated to start, and the started medicament layer generates heat and fuses the conductive piece.

In one embodiment, the conductive member is a conductive wire core, and two ends of the conductive wire core are electrically connected to a circuit between the power supply and the electrical equipment.

In one embodiment, the conductive member includes an insulator, a contact penetrating through the insulator, and a conductive layer covering the insulator, the medicament layer covers the conductive layer, and the conductive layer and the contact are electrically connected in a circuit between the power source and the electrical equipment.

In one embodiment, the circuit breaker further comprises a fuse cord wound outside the medicament layer and extending to the protected area.

In one embodiment, the blasting fuse is a heat-sensitive wire.

In one embodiment, the circuit breaker further comprises an insulating protective layer, and the insulating protective layer covers the medicament layer;

the fuse twines in outside the insulating protective layer, perhaps, the fuse twines in the medicament layer with between the insulating protective layer.

In one embodiment, when the fuse is wound between the medicament layer and the insulating protective layer, the insulating protective layer is provided with a threading hole, and the fuse penetrates through the threading hole and extends to the protective area.

In one embodiment, the medicament layer is an aerosol fire suppressant.

In one embodiment, the medicament layer is a pyrotechnic medicament.

In one embodiment, the circuit breaker further comprises an electrical initiator disposed on the medicament layer and adapted to be communicatively coupled to an external controller such that the electrical initiator activates the medicament layer under the control of the external controller.

Above-mentioned circuit breaker, when the conflagration breaing out, the high temperature that the conflagration produced starts the medicament layer, and the medicament layer produces a large amount of heats after being started rapidly to fusing electrically conductive piece makes the circuit disconnection between power and the electrical equipment, and then realizes the outage to electrical equipment. Compared with the prior art, the circuit breaker provided by the utility model has the advantages that the heat generated by the fire disaster is utilized to start the medicament layer when the fire disaster happens, and then the heat generated by the medicament layer is utilized to fuse the conductive piece for power off, so that the phenomenon that the electrical equipment cannot be powered off in time due to the damage of a protection circuit is avoided without depending on a power supply or a standby power supply of the electrical equipment, and the electrical equipment can be powered off in time.

Drawings

FIG. 1 is a longitudinal cross-sectional view of an interrupter in accordance with an embodiment of the present invention;

FIG. 2 is a schematic diagram of the circuit breaker shown in FIG. 1;

FIG. 3 is a transverse cross-sectional view of an interrupter in another embodiment of the present invention;

fig. 4 is a schematic view of an assembly structure of the circuit breaker and the electrical equipment shown in fig. 3.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with 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 by those skilled in the art according to specific situations.

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," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate 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, an embodiment of the utility model provides an electrical breaker 100, which includes a conductive member 10 connected to a circuit between a power source and an electrical device, and a chemical layer 20 coated on the conductive member 10. The medicine layer 20 can be activated by heat, and the activated medicine layer 20 generates heat and fuses the conductive member 10.

Thus, when a fire disaster occurs, the high temperature generated by the fire disaster starts the medicament layer 20, and the medicament layer 20 rapidly generates a large amount of heat after being started, so that the conductive member 10 is fused, a circuit between a power supply and electrical equipment is disconnected, and the electrical equipment is powered off. Compared with the prior art, the circuit breaker 100 of the utility model starts the medicament layer 20 by using heat generated by a fire when the fire breaks out, and then fuses the conductive member 10 by using the heat generated by the medicament layer 20 to break off the power, and does not depend on a power supply or a standby power supply of electrical equipment, thereby avoiding the phenomenon that the electrical equipment cannot be cut off in time due to the damage of a protection circuit, namely ensuring that the electrical equipment can be cut off in time.

In the embodiment, the agent layer 20 may be an aerosol fire extinguishing agent, and the aerosol fire extinguishing agent can generate heat to fuse the conductive member 10 and perform a fire extinguishing function. Of course, in other embodiments, the agent layer 20 may also be a pyrotechnic agent, which also functions to generate a large amount of heat and fuse the conductive member 10 when activated.

Referring to fig. 1 and fig. 2, in the embodiment of the present invention, the conductive member 10 may be a conductive wire core, and two ends of the conductive wire core are electrically connected to a circuit between the power supply and the electrical equipment. So, when the conflagration breaing out, the heat that the conflagration produced starts medicament layer 20, produces a large amount of heats when medicament layer 20 is started rapidly to fusing conductive core, and then the realization is to electrical equipment's outage.

It should be noted that the conductive device 10 is not limited to use only with a conductive wire core, and in other embodiments, referring to fig. 3, the conductive device 10 includes an insulator 50, a contact 60 penetrating through the insulator 50, and a conductive layer 70 covering the insulator 50, and the agent layer 20 covers the conductive layer 70. The conductive layer 70 and the contacts 60 are electrically connected in a circuit between the power source and the electrical device to enable the power source to power the electrical device. Thus, when a fire occurs, the high temperature generated by the fire starts the chemical layer 20, and the chemical layer 20 generates a large amount of heat when being started, so that the conductive layer 70 is fused, a circuit between a power supply and electrical equipment is disconnected, that is, the electrical equipment is powered off. In the embodiment, please refer to fig. 4, the circuit breaker 100 can be used as a power connector of the electrical apparatus 200, and the power connector is used to connect a power source to the electrical apparatus, so that the power source supplies power to the electrical apparatus.

Referring to fig. 1 and 2, in the embodiment of the utility model, the circuit breaker 100 further includes a fuse 40, and the fuse 40 is wound outside the medicine layer 20 and extends to the protection area. Thus, when a fire disaster occurs in the protection area, heat generated by the fire disaster ignites the fuse 40, so that the fuse 40 burns to the chemical layer 20, the chemical layer 20 is started, and the started chemical layer 20 rapidly generates a large amount of heat, thereby fusing the conductive member 10 and realizing the power off of electrical equipment. Alternatively, the fuse 40 may employ a heat-sensitive wire.

In one embodiment, the circuit breaker 100 further includes an insulating protection layer 30, the insulating protection layer 30 is wrapped on the chemical layer 20, and the fuse 40 is wrapped around the insulating protection layer 30. Thus, when a fire disaster occurs in the protection area, the fuse cord 40 is ignited, so that the heat generated by the fuse cord 40 melts the insulation protection layer 30, the chemical layer 20 is started, a large amount of heat is generated after the chemical layer 20 is started, the conductive member 10 is further fused, and the electrical equipment is powered off.

It should be noted that the fuse 40 is not limited to be wound outside the insulation protection layer 30, and in other embodiments, the fuse 40 may be wound between the chemical layer 20 and the insulation protection layer 30. Therefore, when a fire disaster occurs in the protection area, the fuse cord 40 is ignited, so that the fuse cord 40 burns into the insulation protection layer 30, the chemical layer 20 is started, a large amount of heat is generated after the chemical layer 20 is started, the conductive member 10 is fused, and the electrical equipment is powered off.

Further, when the fuse 40 is wound between the chemical layer 20 and the insulating protective layer 30, the insulating protective layer 30 is provided with a threading hole, and the fuse 40 passes through the threading hole and extends to the protective area.

It should be noted that the medicament layer 20 is not required, and in other embodiments, the blasting fuse 40 may be directly wound on the conductive member 10, and the blasting fuse 40 extends to the protection area. Thus, when a fire breaks out in a protected area, the high temperature generated by the fire ignites the fuse cord 40 and burns to the conductive member 10, and the conductive member 10 is fused by the heat generated by the combustion of the fuse cord 40, thereby realizing the power-off of the electrical equipment. Since the fuse cord 40 generates less heat when ignited, the conductive member 10 should be made of a conductive metal having a low melting point to ensure that the conductive member 10 can be fused when the fuse cord 40 is ignited. Therefore, the method of directly fusing the conductive member 10 by the fuse 40 to cut off the power is suitable for the case of a small current flowing between the power source and the electrical equipment.

It should also be noted that in other embodiments, the activation of the medicament layer 20 may also be accomplished by electrical activation. When electrically activated, the circuit interrupter 100 further includes an electrical initiator disposed on the medicament layer 20 and adapted to be communicatively coupled to an external controller such that the electrical initiator activates the medicament layer 20 under the control of the external controller. Thus, when a fire occurs, the external controller receives the type of the fire and then sends an ignition signal to the electric initiator, thereby controlling the electric initiator to ignite and further starting the chemical layer 20. Alternatively, an electric igniter may be used.

Furthermore, the electric initiator is connected with the external controller through an electric starting line, so that the communication connection between the electric initiator and the external controller is realized.

It will be appreciated that the protected area is provided with a fire detector, such as a temperature sensor or smoke sensor, by means of which the fire in the protected area is detected. The fire detector is in communication with an external controller. Thus, when the fire detector detects a fire in the protected area, the fire detector sends a fire signal to the external controller. The external controller sends a firing signal to the electric initiator through the electric start line after receiving the fire signal, so that the electric initiator fires, thereby starting the chemical layer 20.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification 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 more specific and detailed, but not construed as limiting the scope of the utility model. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. An electrical breaker is characterized by comprising a conductive piece (10) connected in a circuit between a power supply and electrical equipment and a medicament layer (20) coated on the conductive piece (10), wherein the medicament layer (20) can be heated to start, and the started medicament layer (20) generates heat and fuses the conductive piece (10).

2. The circuit breaker according to claim 1, characterized in that said conductive member (10) is a conductive core, both ends of which are electrically connected in a circuit between said power source and said electrical equipment.

3. The circuit breaker according to claim 1, wherein the conductive member (10) comprises an insulator (50), a contact (60) penetrating the insulator (50), and a conductive layer (70) covering the insulator (50), the agent layer (20) is covered on the conductive layer (70), and the conductive layer (70) and the contact (60) are electrically connected in a circuit between the power source and the electrical device.

4. The circuit breaker of claim 1 wherein the circuit breaker (100) further comprises a fuse (40), the fuse (40) being wrapped around the medicament layer (20) and extending to a protected area.

5. The circuit breaker according to claim 4, characterized in that the blasting fuse (40) is a heat-sensitive wire.

6. The circuit breaker according to claim 4, characterized in that the circuit breaker (100) further comprises an insulating protective layer (30), the insulating protective layer (30) being coated on the medicament layer (20);

the fuse cord (40) is wound outside the insulating protective layer (30), or the fuse cord (40) is wound between the medicament layer (20) and the insulating protective layer (30).

7. The circuit breaker according to claim 6, characterized in that when the fuse (40) is wound between the medicament layer (20) and the insulating protective layer (30), the insulating protective layer (30) is provided with a threading hole, and the fuse (40) is threaded through the threading hole and extends to the protective area.

8. The circuit breaker of claim 1 wherein the medicament layer (20) is an aerosol fire extinguishing agent.

9. The circuit breaker of claim 1 wherein said agent layer (20) is a pyrotechnic agent.

10. The electrical disconnect of claim 1, wherein the electrical disconnect (100) further comprises an electrical initiator disposed on the medicament layer (20) and adapted to be communicatively coupled to an external controller such that the electrical initiator activates the medicament layer (20) under control of the external controller.