CN212783154U - Arc extinguishing structure of rotary isolating switch - Google Patents
Arc extinguishing structure of rotary isolating switch Download PDFInfo
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- CN212783154U CN212783154U CN202022216932.3U CN202022216932U CN212783154U CN 212783154 U CN212783154 U CN 212783154U CN 202022216932 U CN202022216932 U CN 202022216932U CN 212783154 U CN212783154 U CN 212783154U
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- arc extinguishing
- moving contact
- permanent magnet
- arc
- swivel mount
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Abstract
The utility model relates to a rotary type isolator's arc extinguishing structure, which comprises a housin, the moving contact, the static contact, moving contact swivel mount and arc control device, arc control device includes the arc extinguishing support, arc extinguishing piece and first permanent magnet, the arc extinguishing support is fixed in the casing and is close to the periphery of moving contact swivel mount, the arc extinguishing piece is arranged in the arc extinguishing support along moving contact swivel mount direction of rotation, first permanent magnet is wrapped up by the arc extinguishing support, first permanent magnet extends to in the moving contact swivel mount and is located the cavity that forms between moving contact and the casing, first permanent magnet covers the moving contact from the switch-on position to the region of dividing the branch position. According to the above technical scheme, the utility model provides an improve rotary type isolator's of arc extinguishing structure of arc extinguishing effect.
Description
Technical Field
The utility model relates to an isolator field, concretely relates to rotary type isolator's arc extinguishing structure.
Background
The rotary isolating switch in the prior art is generally formed by stacking a plurality of switch units, each switch unit comprises a shell, a moving contact, a static contact and a moving contact rotating frame, the moving contact is mounted on the moving contact rotating frame, the moving contact rotating frame is rotatably arranged on the shell, the static contact is fixed on the shell and is positioned on a rotating track of the moving contact, and the moving contact and the static contact are switched on or switched off when the moving contact rotating frame rotates to form the on-off of a circuit.
The moving contact and the static contact can generate electric arc when being disconnected, the electric arc not only can greatly damage the contact, but also can prolong the time for disconnecting the circuit, hidden danger is brought to the use of the isolating switch, an arc extinguishing chamber is often arranged in each switch unit for arc extinguishing, and the arc extinguishing capability of the arc extinguishing mode is limited.
Chinese patent No. 2018200478074 discloses a switch unit of a rotary isolating switch, which adopts a permanent magnet disposed at a position where a moving contact is in contact with and conducted with a stationary contact, and performs arc extinguishing by arc discharge, and the arc extinguishing effect is limited due to the limitation of the position of the permanent magnet.
Disclosure of Invention
Not enough to prior art exists, the utility model aims to provide an improve rotary type isolator's of arc extinguishing effect arc extinguishing structure.
In order to achieve the above purpose, the utility model provides a following technical scheme: including casing, moving contact, static contact, moving contact swivel mount and arc control device, the moving contact install in the moving contact swivel mount, the moving contact swivel mount rotate and set up in the casing, the static contact be fixed in the casing and lie in the rotation track of moving contact, the moving contact swivel mount rotatory time make the moving contact have with the switch-on position of static contact switch-on and with the disconnected position of static contact branch, arc control device include arc extinguishing support, arc extinguishing piece and first permanent magnet, the arc extinguishing support be fixed in the casing and be close to the periphery of moving contact swivel mount, the arc extinguishing piece arrange in the arc extinguishing support along moving contact swivel mount direction of rotation, first permanent magnet wrap up its characterized in that by arc extinguishing support: the first permanent magnet extends into the moving contact rotating frame and is positioned in a cavity formed between the moving contact and the shell, and a magnetic field formed by the first permanent magnet covers a region from a switching-on position to a breaking position of the moving contact.
Through adopting above-mentioned technical scheme, first permanent magnet extends to in the cavity that forms between moving contact and the casing, it is nearer apart from the moving contact, the magnetic field that forms is stronger, can be fast, the electric arc that can produce when effectively acting on moving contact and static contact separation, thereby reinforcing arc extinguishing effect, and simultaneously, the magnetic field that first permanent magnet formed covers the moving contact from the switch-on position to the region of breaking the position, make the magnetic field cover the removal orbit of moving contact completely, further reinforcing arc extinguishing effect, reduce the contact loss of burning, prevent that the electric arc from igniting.
The utility model discloses further set up to: the arc extinguishing piece extends to the position between the arc extinguishing support and the moving contact along the radial direction of the moving contact rotating frame.
Through adopting above-mentioned technical scheme, the arc-extinguishing piece cooperatees with the first permanent magnet that is located the arc extinguishing support, makes the electric arc that first permanent magnet guided can contact with the arc-extinguishing piece as early as possible and cut off to the short arc from long arc, improves the arc extinguishing effect.
The utility model discloses further set up to: the moving contact rotating frame is provided with a second permanent magnet.
By adopting the technical scheme, the second permanent magnets distributed on the moving contact rotating frame are additionally arranged, the moving contact leaves the static contact to generate electric arc, the electric arc is led into the arc extinguishing device by the magnetic field of the first permanent magnet, the moving contact rotating frame rotates to a brake-separating state, and the magnetic field of the second permanent magnet is switched in to further strengthen the arc extinguishing effect.
The utility model discloses further set up to: and a third permanent magnet is arranged on the other side of the shell, which is positioned on the arc extinguishing support and is opposite to the moving contact rotating frame.
Through adopting above-mentioned technical scheme, add the third permanent magnet that distributes in the casing outside, further strengthen the arc extinguishing effect.
The utility model discloses further set up to: the static contact is provided with an arc striking part extending to a position close to the arc extinguishing device.
Through adopting above-mentioned technical scheme, the position that produces electric arc during the striking part is more close to arc control device, makes the electric arc that produces introduce arc control device as early as possible, improves the arc extinguishing effect.
Drawings
FIG. 1 is a perspective view of an embodiment of the present invention;
fig. 2 is a top perspective view of an arc extinguishing device according to an embodiment of the present invention;
fig. 3 is a bottom perspective view of an arc extinguishing device according to an embodiment of the present invention;
fig. 4 is a bottom perspective view of the moving contact, the stationary contact, and the moving contact rotating frame according to the embodiment of the present invention;
fig. 5 is a second embodiment of an arc extinguishing device according to the embodiment of the present invention;
fig. 6 shows a third embodiment of an arc extinguishing device according to the embodiment of the present invention.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
As shown in fig. 1-4, the utility model discloses an arc extinguishing structure of a rotary isolating switch, which comprises a housing 1, a moving contact 2, a static contact 3, a moving contact rotating frame 4 and an arc extinguishing device 5, wherein the moving contact 2 is installed on the moving contact rotating frame 4, the moving contact 2 is generally composed of two moving contact pieces 22, the moving contact rotating frame 4 is rotatably arranged on the housing 1, the static contact 3 is fixed on the housing 1 and is positioned on the rotating track of the moving contact 2, the moving contact 2 has a connecting position connected with the static contact 3 and a breaking position disconnected with the static contact 3 when the moving contact rotating frame 4 rotates, the arc extinguishing device 5 comprises an arc extinguishing support 51, an arc extinguishing piece 52 and a first permanent magnet 53, the arc extinguishing support 51 is fixed on the housing 1 and is close to the periphery of the moving contact rotating frame 4, the arc extinguishing piece 52 is arranged on the arc extinguishing support 51 along the rotating direction of the moving contact rotating frame, the first permanent magnet 53 extends into the movable contact rotating frame 4 and is positioned in the cavity 21 formed between the movable contact 2 and the shell 1, namely the first permanent magnet extension part 531, the magnetic field formed by the first permanent magnet 53 covers the area from the on position to the off position of the movable contact 2, the first permanent magnet 53 extends into the cavity formed between the movable contact 2 and the shell 1 and is close to the movable contact 2, the formed magnetic field is strong, and the magnetic field can quickly and effectively act on the electric arc generated when the movable contact 2 is separated from the static contact 3, so that the arc extinguishing effect is enhanced, meanwhile, the magnetic field formed by the first permanent magnet 53 covers the area from the on position to the off position of the movable contact 2, so that the magnetic field completely covers the moving track of the movable contact 2, the arc extinguishing effect is further enhanced, contact burning loss is reduced, and.
The arc extinguishing piece 52 radially extends to between arc extinguishing support and the moving contact 2 along the moving contact rotating frame 4, namely the arc extinguishing piece extension portion 521, and the arc extinguishing piece 52 is matched with the first permanent magnet 53 positioned in the arc extinguishing support, so that the electric arc guided by the first permanent magnet 53 can be contacted with the arc extinguishing piece 52 as soon as possible and is cut off to a short arc from a long arc, and the arc extinguishing effect is improved.
The moving contact rotating frame 4 is provided with a second permanent magnet 41, the second permanent magnets 41 distributed on the moving contact rotating frame 4 are additionally arranged, the moving contact 2 leaves the static contact 3 to generate electric arc, the electric arc is led into the arc extinguishing device 5 by the magnetic field of the first permanent magnet 53, the moving contact rotating frame 4 rotates to a brake-separating state, and the magnetic field of the second permanent magnet 41 is cut into to further strengthen the arc extinguishing effect.
The shell 1 is provided with a third permanent magnet 11 on the other side of the arc extinguishing support 51 opposite to the moving contact rotating frame 4, and the third permanent magnet 11 distributed on the outer side of the shell 1 is additionally arranged, so that the arc extinguishing effect is further enhanced.
The static contact 3 is provided with an arc striking part 31 extending to a position close to the arc extinguishing device 5, and the position of the arc striking part 31 where the arc is generated is closer to the arc extinguishing device 5, so that the generated arc can be introduced into the arc extinguishing device 5 as soon as possible, and the arc extinguishing effect is improved.
As shown in fig. 5, there is also disclosed another embodiment of the arc extinguishing device, and the first permanent magnet 53' is shaped differently from the first permanent magnet described above.
As shown in fig. 6, another embodiment of the arc extinguishing device is disclosed, in which the arc extinguishing piece 52' does not extend above the arc extinguishing bracket, and still has a good arc extinguishing effect.
Claims (5)
1. The utility model provides a rotary type isolator's arc extinguishing structure, includes casing, moving contact, static contact, moving contact swivel mount and arc extinguishing device, the moving contact install in the moving contact swivel mount, the moving contact swivel mount rotate and set up in the casing, the static contact be fixed in the casing and lie in the rotatory orbit of moving contact, the moving contact swivel mount rotatory time make the moving contact have with the switch-on position of static contact switch-on and with the disconnected position of dividing of static contact branch, arc extinguishing device include arc extinguishing support, arc extinguishing piece and first permanent magnet, the arc extinguishing support be fixed in the casing and be close to the periphery of moving contact swivel mount, the arc extinguishing piece arrange in the arc extinguishing support along moving contact swivel mount direction of rotation, first permanent magnet wrap up by the arc extinguishing support, its characterized in that: the first permanent magnet extends into the moving contact rotating frame and is positioned in a cavity formed between the moving contact and the shell, and a magnetic field formed by the first permanent magnet covers a region from a switching-on position to a breaking position of the moving contact.
2. The arc extinguishing structure of a rotary type disconnector according to claim 1, characterized in that: the arc extinguishing piece extends to the position between the arc extinguishing support and the moving contact along the radial direction of the moving contact rotating frame.
3. The arc extinguishing structure of a rotary type disconnector according to claim 1, characterized in that: the moving contact rotating frame is provided with a second permanent magnet.
4. The arc extinguishing structure of a rotary type disconnector according to claim 1, characterized in that: and a third permanent magnet is arranged on the other side of the shell, which is positioned on the arc extinguishing support and is opposite to the moving contact rotating frame.
5. The arc extinguishing structure of a rotary type disconnector according to claim 1, characterized in that: the static contact is provided with an arc striking part extending to a position close to the arc extinguishing device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022216932.3U CN212783154U (en) | 2020-09-30 | 2020-09-30 | Arc extinguishing structure of rotary isolating switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022216932.3U CN212783154U (en) | 2020-09-30 | 2020-09-30 | Arc extinguishing structure of rotary isolating switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212783154U true CN212783154U (en) | 2021-03-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022216932.3U Active CN212783154U (en) | 2020-09-30 | 2020-09-30 | Arc extinguishing structure of rotary isolating switch |
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| Country | Link |
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| CN (1) | CN212783154U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114628176A (en) * | 2022-03-18 | 2022-06-14 | 深圳市友利通新能源科技有限公司 | High-pressure direct current contactor arc extinguishing system |
-
2020
- 2020-09-30 CN CN202022216932.3U patent/CN212783154U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114628176A (en) * | 2022-03-18 | 2022-06-14 | 深圳市友利通新能源科技有限公司 | High-pressure direct current contactor arc extinguishing system |
| CN114628176B (en) * | 2022-03-18 | 2023-12-08 | 深圳市友利通新能源科技有限公司 | Arc extinguishing system of high-pressure direct-current contactor |
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| GR01 | Patent grant | ||
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| CP03 | Change of name, title or address |
Address after: 325000 Wenzhou Bridge Industrial Park, Beibeixiang Town, Yueqing City, Wenzhou City, Zhejiang Province Patentee after: Zhejiang Benyi New Energy Co.,Ltd. Address before: 325600 Daqiao Industrial Zone, beibaixiang Town, Yueqing City, Wenzhou City, Zhejiang Province Patentee before: ZHEJIANG BENYI ELECTRICAL Co.,Ltd. |