CN209993536U - Arc extinguishing structure of environment-friendly gas switch equipment - Google Patents
Arc extinguishing structure of environment-friendly gas switch equipment Download PDFInfo
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- CN209993536U CN209993536U CN201921099930.1U CN201921099930U CN209993536U CN 209993536 U CN209993536 U CN 209993536U CN 201921099930 U CN201921099930 U CN 201921099930U CN 209993536 U CN209993536 U CN 209993536U
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Abstract
The utility model provides an arc extinguishing structure of environmental protection gas switchgear, including static contact subassembly and moving contact subassembly, the moving contact subassembly includes moving contact, nozzle, pneumatic cylinder and pneumatic chamber, the nozzle sets up in the head of moving contact subassembly, the pneumatic cylinder respectively with the moving contact with the nozzle is connected, the pneumatic chamber sets up in the inside of moving contact subassembly, the static contact subassembly be equipped with the moving contact matched with static contact, the moving contact is detachable with the static contact; the pneumatic cylinder is used for pushing the moving contact and the nozzle to move, and when the moving contact moves rightwards and is connected with the fixed contact, the switch is closed, and closing is completed; when the moving contact moves leftwards and is separated from the static contact, the compressed gas in the air pressure chamber is sprayed out from the nozzle to extinguish arc. The electric arc is quickly extinguished, the insulation strength of the medium is quickly recovered, and the electric arc is not easy to reignite. Has the advantages of rapid arc extinction, simple structure, thorough arc extinction and the like.
Description
Technical Field
The utility model relates to an arc extinguishing equipment field, the more specifically arc extinguishing structure that indicates an environmental protection gas switchgear that says so.
Background
In recent years, an environmental protection gas has been widely used as an insulating and arc extinguishing medium for medium and high voltage switchgear. The environmental protection gas replacing SF6 as an insulating medium has been the development direction of electrical equipment. However, how to utilize the compressed environment-friendly gas to rapidly blow the phase arc and the arcing region, the dissociation removing effect is enhanced, the medium temperature is reduced, the arc is rapidly extinguished, the insulation strength of the medium is rapidly recovered, the arc is not easily reignited, and the novel arc extinguishing structure is needed to achieve the advantages of rapid arc extinguishing, simple structure, thorough arc extinguishing and the like.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome the defect that prior art exists, provide an environmental protection gas switchgear's arc extinguishing structure.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
an arc extinguishing structure of an environment-friendly gas switch device comprises a static contact component and a moving contact component, wherein the moving contact component comprises a moving contact, a nozzle, a pneumatic cylinder and a pneumatic chamber, the nozzle is arranged at the head of the moving contact component, the pneumatic cylinder is respectively connected with the moving contact and the nozzle, the pneumatic chamber is arranged inside the moving contact component, the static contact component is provided with a static contact matched with the moving contact, and the moving contact is detachably connected with the static contact;
the pneumatic cylinder is used for pushing the moving contact and the nozzle to move, and when the moving contact moves rightwards and is connected with the fixed contact, the switch is closed, and closing is completed; when the moving contact moves leftwards and is separated from the static contact, the compressed gas in the air pressure chamber is sprayed out from the nozzle to extinguish arc.
The further technical scheme is as follows: the static contact component further comprises a static contact conductive seat, an arc extinguishing steel sheet insulating seat and an arc extinguishing steel sheet, the static contact conductive seat is sleeved on the periphery of the arc extinguishing steel sheet insulating seat, and the arc extinguishing steel sheets are uniformly arranged on the inner side of the head of the arc extinguishing steel sheet insulating seat.
The further technical scheme is as follows: the fixed contact penetrates through the centers of the fixed arc extinguishing steel sheet insulating seat and the contact conductive seat.
The further technical scheme is as follows: the moving contact component further comprises a moving contact conductive seat and a pneumatic chamber fixing base, and the moving contact conductive seat is sleeved on the periphery of the pneumatic chamber fixing base.
The further technical scheme is as follows: the pneumatic pressure chamber fixing base is arranged on the base, the moving contact conducting seat is arranged on the moving contact conducting seat, and the moving contact conducting seat is arranged on the moving contact conducting seat.
The further technical scheme is as follows: the nozzle is arranged at the head of the pneumatic cylinder.
The further technical scheme is as follows: the moving contact penetrates through the inner side of the air pressure chamber fixing base, and the air pressure cylinder drives the moving contact to move synchronously.
The further technical scheme is as follows: the pneumatic chamber is formed by the moving contact, the pneumatic chamber fixing base and the pneumatic cylinder.
Compared with the prior art, the utility model beneficial effect is: the utility model relates to an arc extinguishing structure of environmental protection gas switchgear is equipped with the static contact that cooperatees with the moving contact through the static contact subassembly, and the moving contact can be connected with the static contact detachably, and the pneumatic cylinder is used for promoting moving contact and nozzle to move, and when the moving contact moved right and was connected with the static contact, the switch was closed, and closing was accomplished; when moving contact left motion and static contact separation, the arc extinguishing is carried out from the nozzle blowout to the indoor compressed gas of atmospheric pressure, utilizes the gaseous quick looks electric arc of blowing of compressed environmental protection and arcing region promptly, strengthens removing the dissociation effect, reduces the medium temperature, extinguishes electric arc fast, and the insulating nature intensity of medium resumes very fast, and electric arc is difficult for reigniting. Has the advantages of rapid arc extinction, simple structure, thorough arc extinction and the like.
The invention is further described with reference to the accompanying drawings and specific embodiments.
Drawings
Fig. 1 is a front view of the movable contact and the fixed contact of the arc extinguishing structure of the environmental protection gas switch device of the present invention;
fig. 2 is a cross-sectional view of the connection between the moving contact and the static contact of the arc extinguishing structure of the environmental protection gas switch device of the present invention;
fig. 3 is a front view of the moving contact and the static contact of the arc extinguishing structure of the environmental protection gas switch device of the present invention;
fig. 4 is the utility model discloses an environmental protection gas switchgear's arc extinguishing structure moving contact and the sectional view of static contact separation.
Detailed Description
In order to more fully understand the technical content of the present invention, the technical solution of the present invention will be further described and illustrated with reference to the following specific embodiments, but not limited thereto.
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that all the directional indicators (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is also changed accordingly, and the connection may be a direct connection or an indirect connection.
In addition, descriptions in the present application as to "first", "second", and the like are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit to 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 addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.
In this specification, "/" means "or" unless otherwise specified "
As shown in fig. 1 to 4, an arc extinguishing structure of an environmental protection gas switch device includes a static contact 3 component and a dynamic contact 7 component, where the dynamic contact 7 component includes a dynamic contact 7, a nozzle 8, a pneumatic cylinder 6 and a pneumatic chamber 10, the nozzle 8 is disposed at a head of the dynamic contact 7 component, the pneumatic cylinder 6 is respectively connected with the dynamic contact 7 and the nozzle 8, the pneumatic chamber 10 is disposed inside the dynamic contact 7 component, the static contact 3 component is provided with a static contact 3 matched with the dynamic contact 7, and the dynamic contact 7 is detachably connected with the static contact 3;
the pneumatic cylinder 6 is used for pushing the moving contact 7 and the nozzle 8 to move, and when the moving contact 7 moves rightwards and is connected with the static contact 3, the switch is closed, and closing is completed; when the moving contact 7 moves leftwards and is separated from the static contact 3, the compressed gas in the gas pressure chamber 10 is sprayed out from the nozzle 8 to extinguish the arc. The static contact 3 contacts the moving contact 7 through the movement of the moving contact 7, the switch is closed, the moving contact 7 is disconnected, and the switch is disconnected. The moving contact 7 is used for connecting the static contact 3 and disconnecting the static contact 3 under the driving of the switch mechanism; the compressed air in the air compression chamber is guided, when the electric arc is generated when the moving contact 3 and the static contact 3 are separated, the compressed air generated in the air compression chamber blows out the electric arc through the nozzle 8 under the guide of the moving contact 7. The pneumatic cylinder 6 moves together with the movable contact 7 under the drive of the mechanism, and can compress the medium gas in the pneumatic chamber 10. The pressure chamber 10 is used for storing medium gas, when the moving contact 7 is operated by a mechanism to be disconnected with the static contact 3, the volume of the pressure chamber 10 is reduced, the internal pressure is increased, and when the moving contact 7 passes through the nozzle 8, the compressed gas can be rapidly ejected through the nozzle 8 to achieve the arc extinguishing effect.
Specifically, the compressed environment-friendly gas is utilized to rapidly blow the phase arc and the arcing area, the dissociation removing effect is enhanced, the medium temperature is reduced, the arc is rapidly extinguished, the insulation strength of the medium is rapidly recovered, and the arc is not easy to reignite. Has the advantages of rapid arc extinction, simple structure, thorough arc extinction and the like.
Specifically, as shown in fig. 1 to 4, the static contact 3 assembly further includes a static contact conductive seat 1, an arc extinguishing steel sheet insulating seat 2 and an arc extinguishing steel sheet 9, the static contact conductive seat 1 is sleeved on the outer periphery of the arc extinguishing steel sheet insulating seat 2, and the arc extinguishing steel sheets 9 are uniformly arranged on the inner side of the head of the arc extinguishing steel sheet insulating seat 2. The static contact conducting seat 1 is mainly used for fixing the static contact 3 and conducting current to other parts of the switch; the arc extinguishing steel sheet insulating seat 2 is used for fixing the arc extinguishing steel sheets 9, so that the arc extinguishing steel sheets 9 are uniformly and circumferentially arranged around the static contact 3. The arc extinguishing steel sheet 9 can absorb the electric arc generated when the moving contact and the static contact 3 are separated, the arc extinguishing effect is achieved to a certain degree, and the electric arc which is not completely blown out at the nozzle 8 can achieve better arc extinguishing effect after being absorbed by the arc extinguishing steel sheet 9.
Specifically, as shown in fig. 1 to 4, the stationary contact 3 is inserted into the center of the arc extinguishing steel sheet insulating base 2 and the center of the contact conductive base.
Specifically, as shown in fig. 1 to 4, the moving contact 7 assembly further includes a moving contact conductive seat 4 and a pneumatic chamber fixing base 5, and the moving contact conductive seat is sleeved on the periphery of the pneumatic chamber fixing base 5. The moving contact conductive seat 4 is used for connecting the conductive moving contact 7 with other components of the switch and has a limiting effect on the moving contact 7.
Specifically, as shown in fig. 1 to 4, a cavity is formed by an inner side of the movable contact conductive seat 4 and an outer side of the pneumatic chamber fixing base 5, and the pneumatic cylinder 6 is disposed through the cavity and can move along the cavity.
Specifically, as shown in fig. 1 to 4, the nozzle 8 is provided at the head of the pneumatic cylinder 6.
Specifically, as shown in fig. 1 to 4, the movable contact 7 is inserted into the inner side of the fixed base 5 of the pneumatic chamber, and the pneumatic cylinder 6 drives the movable contact 7 to move synchronously.
Specifically, as shown in fig. 1 to 4, the pneumatic chamber 10 is formed by the movable contact 7 and the space between the pneumatic chamber fixing base 5 and the pneumatic cylinder 6.
Specifically, as shown in fig. 1 to 4, the static contact conductive socket 1 is used to fix the static contact 3, and the connection switch component and the static contact 3 have a conductive function.
Specifically, as shown in fig. 1 to 4, the moving contact and the stationary contact 3 are important components of the switch structure. The moving contact 7 and the static contact 3 are closed and opened, so that the split and the combination of the switch equipment are reflected; wherein the movable contact 7 also guides the medium gas of the gas pressure chamber 10.
Specifically, as shown in fig. 1 to 4, the arc extinguishing steel sheet insulating base 2 is used to fix the arc extinguishing steel sheet 9, so that the arc extinguishing steel sheet 9 is uniformly and circumferentially arranged around the stationary contact 3.
Specifically, as shown in fig. 1 to 4, the movable contact conductive seat 4 connects the movable contact 7 and the switch component, performs a conductive function, and performs a guiding and limiting function on a moving rail of the movable contact 7.
Specifically, as shown in fig. 1 to 4, the arc extinguishing steel sheet 9 can absorb the arc generated when the moving contact and the static contact 3 are separated, so as to achieve the arc extinguishing effect to a certain extent, and the arc which is not completely blown out at the nozzle 8 can achieve a better arc extinguishing effect after being absorbed by the arc extinguishing steel sheet 9.
Specifically, as shown in fig. 1 to 4, the pneumatic chamber 10 stores the medium gas, when the movable contact 7 is operated by the mechanism to disconnect the movable contact from the stationary contact 3, the volume of the pneumatic chamber 10 is reduced, the internal pressure is increased, and when the movable contact 7 passes through the nozzle 8, the compressed gas is rapidly ejected through the nozzle 8 to achieve the arc extinguishing effect. When the brake is switched off, the operating mechanism drives the moving contact 7 and the air compression cylinder to move leftwards simultaneously, so that the gas pressure in the air compression chamber is increased, an electric arc is generated when the moving arc contact is separated from the nozzle 8, and the gas in the air compression chamber is blown to the electric arc through the nozzle 8, so that the electric arc is extinguished.
To sum up, the arc extinguishing structure of the environmental protection gas switch equipment of the utility model is provided with the static contact matched with the moving contact through the static contact component, the moving contact is detachably connected with the static contact, the pneumatic cylinder is used for pushing the moving contact and the nozzle to move, when the moving contact moves rightwards and is connected with the static contact, the switch is closed, and the closing is completed; when moving contact left motion and static contact separation, the arc extinguishing is carried out from the nozzle blowout to the indoor compressed gas of atmospheric pressure, utilizes the gaseous quick looks electric arc of blowing of compressed environmental protection and arcing region promptly, strengthens removing the dissociation effect, reduces the medium temperature, extinguishes electric arc fast, and the insulating nature intensity of medium resumes very fast, and electric arc is difficult for reigniting. Has the advantages of rapid arc extinction, simple structure, thorough arc extinction and the like.
The technical content of the present invention is further described by the embodiments only, so that the reader can understand it more easily, but the embodiments of the present invention are not limited thereto, and any technical extension or re-creation according to the present invention is protected by the present invention. The protection scope of the present invention is subject to the claims.
Claims (8)
1. An arc extinguishing structure of an environment-friendly gas switch device is characterized by comprising a static contact component and a moving contact component, wherein the moving contact component comprises a moving contact, a nozzle, a pneumatic cylinder and a pneumatic chamber, the nozzle is arranged at the head of the moving contact component, the pneumatic cylinder is respectively connected with the moving contact and the nozzle, the pneumatic chamber is arranged inside the moving contact component, the static contact component is provided with a static contact matched with the moving contact, and the moving contact is detachably connected with the static contact;
the pneumatic cylinder is used for pushing the moving contact and the nozzle to move, and when the moving contact moves rightwards and is connected with the fixed contact, the switch is closed, and closing is completed; when the moving contact moves leftwards and is separated from the static contact, the compressed gas in the air pressure chamber is sprayed out from the nozzle to extinguish arc.
2. The arc extinguishing structure of the environmental protection gas switch equipment according to claim 1, wherein the stationary contact assembly further comprises a stationary contact conductive seat, an arc extinguishing steel sheet insulating seat and an arc extinguishing steel sheet, the stationary contact conductive seat is sleeved on the periphery of the arc extinguishing steel sheet insulating seat, and the arc extinguishing steel sheets are uniformly arranged on the inner side of the head of the arc extinguishing steel sheet insulating seat.
3. The arc extinguishing structure of the environmental protection gas switch equipment according to claim 2, wherein the stationary contact is arranged in the center of the insulating base and the conductive base of the contact of the arc extinguishing steel sheet in a penetrating manner.
4. The arc extinguishing structure of the environmental protection gas switch equipment according to claim 1, wherein the moving contact assembly further comprises a moving contact conductive seat and a pneumatic chamber fixing base, and the moving contact conductive seat is sleeved on the periphery of the pneumatic chamber fixing base.
5. The arc extinguishing structure of the environmental protection gas switch equipment according to claim 4, wherein the inner side of the moving contact conductive seat and the outer side of the pneumatic chamber fixing base form a cavity, and the pneumatic cylinder is arranged in the cavity in a penetrating manner and can move along the cavity.
6. The arc extinguishing structure of the environmental protection gas switching device according to claim 5, wherein the nozzle is provided at a head of the pneumatic cylinder.
7. The arc extinguishing structure of the environmental protection gas switch equipment according to claim 5, wherein the moving contact is inserted into the inner side of the fixed base of the pneumatic chamber, and the pneumatic cylinder drives the moving contact to move synchronously.
8. The arc extinguishing structure of the environmental protection gas switch equipment according to claim 7, wherein the pneumatic chamber is formed by the moving contact, the pneumatic chamber fixing base and the pneumatic cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921099930.1U CN209993536U (en) | 2019-07-12 | 2019-07-12 | Arc extinguishing structure of environment-friendly gas switch equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921099930.1U CN209993536U (en) | 2019-07-12 | 2019-07-12 | Arc extinguishing structure of environment-friendly gas switch equipment |
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| Publication Number | Publication Date |
|---|---|
| CN209993536U true CN209993536U (en) | 2020-01-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921099930.1U Active CN209993536U (en) | 2019-07-12 | 2019-07-12 | Arc extinguishing structure of environment-friendly gas switch equipment |
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| CN (1) | CN209993536U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023137644A1 (en) * | 2022-01-19 | 2023-07-27 | Hitachi Energy Switzerland Ag | Fixed contact assembly, arc extinguish chamber, and high voltage circuit breaker |
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2019
- 2019-07-12 CN CN201921099930.1U patent/CN209993536U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023137644A1 (en) * | 2022-01-19 | 2023-07-27 | Hitachi Energy Switzerland Ag | Fixed contact assembly, arc extinguish chamber, and high voltage circuit breaker |
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Address after: Three, E (-4), Seaview Plaza, Prince Edward Road, Shenzhen, Guangdong, Nanshan District 518000, China Patentee after: Asia Electrical Power Equipment (Shenzhen) Co.,Ltd. Address before: Three, E (-4), Seaview Plaza, Prince Edward Road, Shenzhen, Guangdong, Nanshan District 518000, China Patentee before: ASIA ELECTRICAL POWER EQUIPMENT (SHENZHEN) Co.,Ltd. |