Double-acting arc extinguish chamber with energy storage device

Abstract

The utility model relates to the technical field of arc extinguish chambers, and discloses a double-acting arc extinguish chamber with an energy storage device, which comprises a support table, arc extinguish chambers symmetrically arranged on the upper side of the support table, arc striking sheets arranged in the arc extinguish chambers and used for separating electric arcs, gas members arranged in the arc extinguish chambers, and a support seat arranged on the upper side of the support table, a movable contact is movably hinged to the interior of the supporting seat and is in movable contact with the arc striking piece, so that the pressure intensity in the air storage cavity is increased, a pressure difference is formed between the air storage cavity and the outside, internal air applies pressure to the sealing piece, the air in the air storage cavity blows out the separated electric arc, and the scheme is simple in structure, convenient to operate and high in practicability. The gas generated by the gas element is stored through the cooperation of the gas element and the partition plate, the generated gas blows out the electric arc, and the stability and reliability of the arc extinguishing process can be ensured by using the stored gas to blow out the electric arc, so that the performance and reliability of the electrical equipment are improved, and meanwhile, the energy consumption is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of arc extinguishing chambers, in particular to a double-acting arc extinguishing chamber with an energy storage device. Background Art

[0002] A double-acting arc extinguisher is a device used in power systems to quickly and reliably extinguish an arc when a short circuit occurs. An energy storage device generally refers to a device used to store electrical energy for subsequent use, such as a battery or supercapacitor. Adding an energy storage device to a double-acting arc extinguisher can improve its performance, increase its ability to respond quickly to arcs, help extinguish arcs more quickly, and protect power system equipment and personnel. This design can reduce arc duration and improve arc extinguishing effectiveness.

[0003] At present, when the circuit breaker opens the circuit, the current interruption will generate an arc, which needs to be extinguished quickly to prevent the arc from continuing to exist and causing equipment damage or personal injury. The arc is usually struck by a movable contact in contact with multiple arc-striking pieces, and multiple arc-striking pieces are used to increase the distance between the arcs to extinguish them. However, this method is relatively simple in extinguishing the arc and has low practicality. Therefore, it does not meet the existing needs. In this regard, we have proposed a double-acting arc extinguishing chamber with an energy storage device. Utility Model Content

[0004] The utility model provides a double-acting arc extinguishing chamber with an energy storage device, which has the beneficial effect of extinguishing arcs in multiple ways, and solves the problem mentioned in the above background technology that when the circuit breaker opens the circuit, the current interruption will generate an arc, and this arc needs to be extinguished quickly to prevent the arc from continuing to exist and causing equipment damage or personal injury. The arc striking method is usually to contact a plurality of arc striking pieces through a movable contact, and the plurality of arc striking pieces are used to increase the distance between the arcs so that they are extinguished. However, this method is relatively simple in the way of extinguishing the arc and has a low practicality.

[0005] The utility model provides the following technical solution: a double-acting arc extinguishing chamber with an energy storage device, comprising a support platform, an arc extinguishing cover is symmetrically installed on the upper side of the support platform, an arc-striking sheet for separating the arc is installed inside the arc extinguishing cover, a gas component is installed inside the arc extinguishing cover, a support seat is installed on the upper side of the support platform, a movable contact is movably hinged inside the support seat, and the movable contact is in movably contact with the arc-striking sheet.

[0006] As an optional solution for the double-acting arc extinguishing chamber with energy storage device described in the utility model, there are a plurality of arc-striking plates, which are linearly arranged inside the arc-extinguishing cover, the arc-striking plates are steel plates, and partition plates are symmetrically installed on the bottom sides of the arc-striking plates.

[0007] As an optional solution for the double-acting arc extinguishing chamber with energy storage device described in the utility model, the gas-permeable member is installed between the two partition plates, and the partition plates are arranged so that gas storage cavities are separated between each layer of the arc-striking plates.

[0008] As an optional solution for the double-acting arc extinguishing chamber with energy storage device described in the utility model, a sealing sheet is installed on the surface of the gaseous part, and the sealing sheet is composed of a plurality of elastic sheets, and the elastic sheets are arranged as fan-shaped sheets. When the sealing sheet is subjected to pressure, the plurality of elastic sheets unfold and form through holes for air flow to pass through.

[0009] As an optional solution for the double-acting arc extinguishing chamber with energy storage device described in the utility model, wherein: a point seat is installed on the front side of the arc extinguishing cover, the movable contact is in movably contact with the point seat, and two support seats are provided.

[0010] As an optional solution for the double-acting arc extinguishing chamber with energy storage device described in the utility model, the arc extinguishing cover has mounting holes symmetrically opened on its side, and the arc striking piece has protrusions symmetrically installed on its side, and the protrusions are engaged with the mounting holes.

[0011] As an optional solution for the double-acting arc extinguishing chamber with energy storage device described in the utility model, the partition plate and the arc-striking plate are integrated, and when the arc-striking plate is contacted by the electric arc, the gaseous member installed between the two partition plates generates gas.

[0012] The utility model has the following beneficial effects:

[0013] 1. When the double-acting arc extinguishing chamber with an energy storage device is in use, the arc is elongated and thus cut off by the cooperation between the movable contact and a plurality of arc-striking pieces. At the same time, a partition plate is provided between the arc-striking pieces, and a gaseous member is installed between the partition plates. When the gaseous member is eroded by the arc, a large amount of gas is generated, which increases the pressure inside the gas storage cavity, thereby forming a pressure difference with the outside, so that the internal gas exerts pressure on the sealing piece, so that the gas inside the gas storage cavity extinguishes the cut-off arc. The present invention has a simple structure and is easy to operate. By cooperating with the gaseous member and the partition plate, the gas generated by the gaseous member is stored, and the generated gas extinguishes the arc. Using the stored gas to extinguish the arc can ensure the stability and reliability of the arc extinguishing process, thereby improving the performance and reliability of the electrical equipment, and reducing energy consumption.

[0014] 2. When in use, the double-acting arc extinguishing chamber with an energy storage device stores the gas generated by the gaseous component by arranging a sealing sheet on the surface of the gaseous component. When there is a discrepancy between the pressure of the gas inside the gas storage cavity and the external gas, the sealing sheet is subjected to pressure, and several elastic sheets unfold to form through holes for air flow to pass through, thereby blowing out the arc. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional structural schematic diagram of the utility model.

[0016] Figure 2 It is a schematic diagram of the front structure of the arc extinguishing cover of the utility model.

[0017] Figure 3 The utility model is a schematic diagram of the sealing sheet composition structure.

[0018] Figure 4 It is a schematic diagram of the upper structure of the arc extinguishing hood of the utility model.

[0019] In the figure: 110, support platform; 120, arc extinguishing cover; 130, arc striking piece; 140, gas component; 150, support seat; 160, movable contact; 170, partition plate; 180, air storage cavity; 190, sealing sheet; 210, point seat; 220, mounting hole; 221, bump; 230, motor. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] Embodiment 1: This embodiment is intended to promote the solution of the problem that when a circuit breaker opens a circuit, an arc is generated when the current is interrupted. This arc needs to be extinguished quickly to prevent the arc from continuing to exist and causing damage to equipment or injury to personnel. The arc is usually struck by a movable contact contacting a plurality of arc striking pieces, and the plurality of arc striking pieces are used to increase the distance between the arcs so that they are extinguished. However, this method is relatively simple in the way of extinguishing the arc and has a low practicality. Please refer to Figure 1 - Figure 4 A double-acting arc extinguishing chamber with an energy storage device includes a support platform 110, an arc extinguishing cover 120 is symmetrically installed on the upper side of the support platform 110, an arc-striking piece 130 for separating the arc is installed inside the arc extinguishing cover 120, a gas component 140 is installed inside the arc extinguishing cover 120, a support seat 150 is installed on the upper side of the support platform 110, a movable contact 160 is movably hinged inside the support seat 150, the movable contact 160 is movably contacted with the arc-striking piece 130, and a motor 230 is arranged on the side of the support seat 150, and the motor 230 can drive the movable contact 160 to rotate.

[0022] A plurality of arc-striking pieces 130 are provided, and the plurality of arc-striking pieces 130 are linearly arranged inside the arc-extinguishing cover 120. The arc-striking pieces 130 are provided as steel sheets, and partition plates 170 are symmetrically installed on the bottom sides of the plurality of arc-striking pieces 130. The gas-generating piece 140 is installed between two partition plates 170. Through the arrangement of the partition plates 170, a gas storage cavity 180 is separated between each layer of arc-striking pieces 130. The gas-generating piece 140 is provided as a gas-generating material, and the gas-generating material is a common material, such as "thermal expansion agent, chemical gas generating agent, solid arc-extinguishing agent, etc. These substances will decompose to generate arc-extinguishing gas when an arc is generated. Common solid arc-extinguishing agents include borates, boric acid esters, calcium silicates, etc."

[0023] A point seat 210 is installed on the front side of the arc extinguishing cover 120, and the movable contact 160 is in active contact with the point seat 210. Two support seats 150 are provided. The arc extinguishing cover 120 has symmetrical mounting holes 220 on its side, and the arc striking piece 130 has symmetrically mounted protrusions 221 on its side, which engage with the mounting holes 220.

[0024] The partition plate 170 is integrated with the arc-striking piece 130 . When the arc-striking piece 130 is contacted by the arc, the gas element 140 installed between the two partition plates 170 generates gas.

[0025] In the present embodiment: when in use, the arc is elongated and thus isolated by the cooperation between the movable contact 160 and a plurality of arc-striking pieces 130. At the same time, a partition plate 170 is provided between the arc-striking pieces 130, and a gas component 140 is installed between the partition plates 170. When the gas component 140 is eroded by the arc, a large amount of gas is generated, which increases the pressure inside the gas storage cavity 180, thereby forming a pressure difference with the outside, so that the internal gas exerts pressure on the sealing piece 190, so that the gas inside the gas storage cavity 180 extinguishes the isolated arc. The present solution has a simple structure and is easy to operate. By cooperating with the gas component 140 and the partition plate 170, the gas generated by the gas component 140 is stored, and the generated gas extinguishes the arc. Using the stored gas to extinguish the arc can ensure the stability and reliability of the arc extinguishing process, thereby improving the performance and reliability of the electrical equipment, while reducing energy consumption.

[0026] Embodiment 2: This embodiment is intended to facilitate the solution of the problem of arc extinguishing when the gas is generated to a certain amount. This embodiment is an improvement made on the basis of embodiment 1. For details, please refer to Figure 1 - Figure 4 A sealing sheet 190 is installed on the surface of the gas component 140. The sealing sheet 190 is composed of a plurality of elastic sheets. The elastic sheets are arranged as fan-shaped sheets. When the sealing sheet 190 is subjected to pressure, the plurality of elastic sheets unfold and form through holes for airflow to pass through.

[0027] In this embodiment: when in use, by setting the sealing sheet 190 on the surface of the gas component 140, it is convenient to store the gas generated by the gas component 140. When there is a discrepancy between the pressure between the gas inside the gas storage cavity 180 and the external gas, the sealing sheet 190 is subjected to pressure, and several elastic sheets unfold and form through holes for air flow to pass through, thereby blowing out the arc.

[0028] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0029] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A double-acting arc extinguishing chamber with an energy storage device, comprising a support platform (110), characterized in that: An arc extinguishing hood (120) is symmetrically mounted on the upper side of the support platform (110), an arc striking piece (130) for separating the arc is mounted inside the arc extinguishing hood (120), a gas component (140) is mounted inside the arc extinguishing hood (120), a support seat (150) is mounted on the upper side of the support platform (110), a movable contact (160) is movably hinged inside the support seat (150), and the movable contact (160) is in movably contact with the arc striking piece (130).

2. The double-acting arc extinguishing chamber with energy storage device according to claim 1, characterized in that: A plurality of arc-striking plates (130) are provided, and the plurality of arc-striking plates (130) are linearly arranged and installed inside the arc-extinguishing cover (120). The arc-striking plates (130) are configured as steel plates, and partition plates (170) are symmetrically installed on the bottom sides of the plurality of arc-striking plates (130).

3. The double-acting arc extinguishing chamber with energy storage device according to claim 2, characterized in that: The gas component (140) is installed between the two partition plates (170). Through the arrangement of the partition plates (170), a gas storage cavity (180) is separated between each layer of the arc-starting sheets (130).

4. The double-acting arc extinguishing chamber with energy storage device according to claim 1, characterized in that: A sealing sheet (190) is installed on the surface of the gas component (140). The sealing sheet (190) is composed of a plurality of elastic sheets, and the elastic sheets are arranged as fan-shaped sheets. When the sealing sheet (190) is subjected to pressure, the plurality of elastic sheets are unfolded to form through holes for airflow to pass through.

5. The double-acting arc extinguishing chamber with energy storage device according to claim 1, characterized in that: A point seat (210) is installed on the front side of the arc extinguishing cover (120), the movable contact (160) is in movably contact with the point seat (210), and two support seats (150) are provided.

6. The double-acting arc extinguishing chamber with energy storage device according to claim 1, characterized in that: The arc extinguishing cover (120) is symmetrically provided with mounting holes (220) on its side, and the arc striking piece (130) is symmetrically provided with protrusions (221) on its side, wherein the protrusions (221) are engaged with the mounting holes (220).

7. The double-acting arc extinguishing chamber with energy storage device according to claim 2, characterized in that: The partition plate (170) and the arc-striking plate (130) are integrally arranged, and when the arc-striking plate (130) is contacted by an electric arc, a gaseous member (140) installed between the two partition plates (170) generates gas.

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