CN214378185U - Arc extinguishing structure of rotary type isolator - Google Patents
Arc extinguishing structure of rotary type isolator Download PDFInfo
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- CN214378185U CN214378185U CN202120186634.6U CN202120186634U CN214378185U CN 214378185 U CN214378185 U CN 214378185U CN 202120186634 U CN202120186634 U CN 202120186634U CN 214378185 U CN214378185 U CN 214378185U
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- arc
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Abstract
The utility model belongs to the isolator field, concretely relates to rotary type isolator arc extinguishing structure, including casing, moving contact, static contact, moving contact rolling stock, arc control device includes insulating casing, follows moving contact moving direction and arranges the electric arc division board on insulating casing in proper order and fix the first permanent magnet that sets up on insulating casing, insulating casing is provided with from electric arc division board near moving contact rolling stock side edge and extends to the first extension that is close moving contact rolling stock edge, first extension is raised the first boss of formation to the direction of moving contact movement track. The utility model discloses raise the first boss of formation at the insulating casing who is in position between arc splitter and the moving contact rotating turret, effectively improve the air-blast effect, electric arc gets into the explosion chamber with higher speed, can effectually elongate electric arc and cooling arc.
Description
Technical Field
The utility model belongs to the isolator field, concretely relates to rotary type isolator arc extinguishing structure.
Background
The rotary type 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 installed at the outer edge of 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 located on a rotating track of the moving contact, and the moving contact and the static contact are in contact or separated when the moving contact rotating frame rotates to form the closing and the opening of a circuit.
The moving contact can produce electric arc when being separated from the static contact, and electric arc not only can have very big destruction effect to the contact, still can make the time extension of breaking the circuit, brings the hidden danger for isolator's use, so often can set up the explosion chamber in each switch unit and carry out the arc extinguishing, however this kind of arc extinguishing mode arc extinguishing ability is limited.
Chinese utility model patent No. 202020221756.X discloses an isolator's arc extinguishing structure, and it sets up the permanent magnet on arc control device and realizes introducing electric arc in the arc control device in order to improve the arc extinguishing effect.
SUMMERY OF THE UTILITY MODEL
The utility model aims at overcoming the shortcoming and not enough that prior art exists, and provide a rotary type isolator arc extinguishing structure.
The utility model discloses the technical scheme who takes as follows: a rotary type isolating switch arc extinguishing structure comprises a shell, a moving contact, a static contact, a moving contact rotating frame and an arc extinguishing device, the moving contact rotating frame is in rotating fit with the shell, the moving contact is arranged on the moving contact rotating frame, the static contact is fixed in the shell, the moving contact and the static contact are butted or separated to form the connection or disconnection of a circuit in the rotating process of the moving contact rotating frame, the arc extinguishing device comprises an insulating shell, arc splitter plates and a first permanent magnet, wherein the arc splitter plates are sequentially arranged on the insulating shell along the moving direction of the moving contact, the insulation shell is provided with a first extension part which extends from the edge of one side of the arc partition board close to the moving contact rotating frame to the edge close to the moving contact rotating frame, and the first extension part is lifted to the direction of the moving track of the moving contact to form a first boss.
The edge of the first boss is arranged close to the moving track of the moving contact.
The arc splitter plates are L-shaped and are arranged on the outer side edge of the first boss far away from the moving contact rotating frame in a fan shape.
The insulation shell is provided with a second extension part extending from one side of the arc partition board far away from the static contact to the direction of the disconnection position of the movable contact, a first mounting groove is formed in the other side of the second extension part relative to the movement track of the movable contact, and the first permanent magnet is fixed in the first mounting groove.
The second extension part is lifted towards the moving track of the moving contact to form a second boss, and the edge of the second boss is close to the moving track of the moving contact.
And a second permanent magnet is arranged on the moving contact rotating frame, and the second permanent magnet forms a magnetic field for pushing the electric arc to the electric arc splitter plate.
The moving contact rotating frame is protruded towards the periphery to form a convex ring part, the convex ring part and the second boss are respectively positioned on two sides of a moving track of the moving contact, a second mounting groove is formed in the other side, away from the moving track of the moving contact, of the convex ring part, and the second permanent magnet is fixed in the second mounting groove.
The static contact is provided with an abutting part for abutting against the moving contact and an arc-starting part extending from the edge of the abutting part to the direction of the disconnecting position of the moving contact.
The arc starting part is obliquely arranged towards the arc splitter plate.
And the shell is provided with an air outlet at the other side of the arc extinguishing device relative to the moving contact rotating frame.
The utility model has the advantages as follows: the utility model discloses raise the first boss of formation at the insulating casing who is in position between arc splitter and the moving contact rotating turret, effectively improve the air-blast effect, electric arc gets into the explosion chamber with higher speed, can effectually elongate electric arc and cooling arc.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings obtained from these drawings still belong to the scope of the present invention without inventive laboriousness.
Fig. 1 is a schematic structural diagram of an embodiment of the present invention;
fig. 2 is a schematic structural diagram of an angle of an arc extinguishing device according to an embodiment of the present invention, in which a is marked as a magnetic field direction of a first permanent magnet;
fig. 3 is a schematic structural diagram of an insulating housing according to an embodiment of the present invention;
fig. 4 is a schematic view of arc formation according to an embodiment of the present invention, wherein a is marked as an arc strike;
fig. 5 is a schematic structural view of another angle of the arc extinguishing device according to an embodiment of the present invention;
in the drawings, 1, a housing; 11, an air outlet; 2, a moving contact; 3, static contact; 31, an abutting portion; 32, an arcing portion; 4, moving contact rotating frames; 41, a convex ring part; 5, an arc extinguishing device; 51, an insulating housing; 511, a first boss; 512, a second boss; 513, a first mounting groove; 514, arc splitter mounting slots; 52, arc splitter plates; 53, a first permanent magnet; 6, a second permanent magnet.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in further detail with reference to the accompanying drawings.
It should be noted that all expressions using "first" and "second" in the embodiments of the present invention are used for distinguishing two entities with the same name but different names or different parameters, and it is understood that "first" and "second" are only used for convenience of expression and should not be understood as limitations to the embodiments of the present invention, and the following embodiments do not describe any more.
The terms of direction and position in the present invention, such as "up", "down", "front", "back", "left", "right", "inside", "outside", "top", "bottom", "side", etc., refer to the direction and position of the attached drawings. Accordingly, the use of directional and positional terms is intended to illustrate and understand the present invention and is not intended to limit the scope of the invention.
As shown in fig. 1, a rotary type arc extinguishing structure of a disconnecting switch includes 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 rotating frame 4 is in rotating fit with the housing 1, the moving contact 2 is mounted on the moving contact rotating frame 4, the static contact 3 is fixed in the housing 1, the moving contact 2 and the static contact are abutted or separated to form a circuit connection or disconnection in the rotating process of the moving contact rotating frame 4, as shown in fig. 2, the arc extinguishing device 5 includes an insulating housing 51, arc splitter plates 52 sequentially arranged on the insulating housing 51 along the moving direction of the moving contact 2, and first permanent magnets 53 fixed on the insulating housing, the insulating housing 51 is provided with a first extending portion extending from an edge of the arc splitter plate 52 close to one side of the moving contact rotating frame 4 to an edge close to the moving contact rotating frame 4, the first extension part is raised towards the moving track of the movable contact 2 to form a first boss 511. As shown in fig. 4, the first boss 511 is disposed on the insulating housing 51 between the arc splitter plate 52 and the moving contact rotating frame 4, so as to effectively improve the air blowing effect, accelerate the arc entering the arc extinguishing chamber, and effectively elongate the arc and cool the arc.
The edge of the first boss 511 is arranged close to the moving track of the movable contact 2.
The arc splitter plates 52 are L-shaped and arranged in a fan shape on the outer edge of the first boss 511 away from the moving contact rotating frame 4. The L-shaped arc splitter plates 52 are arranged along the outer side of the insulating shell 51 in a fan-shaped manner and at the rear side of the first boss 511, so that arc striking and arc lengthening are achieved, the arc is effectively divided into multiple sections, and the areas of the striking and arc cooling of the L-shaped arc extinguishing plates are more effectively utilized.
As shown in fig. 2, the insulating housing 51 is provided with a second extending portion extending from a side of the arc separating plate 52 away from the fixed contact 3 to a direction of the disconnection position of the movable contact 2, as shown in fig. 5, the other side of the moving track of the movable contact 2 of the second extending portion is provided with a first mounting groove 513, and the first permanent magnet 53 is fixed in the first mounting groove 513. When the arc is generated, the arc enters the magnetic field of the L-shaped arc splitter plate 52, and under the influence of the magnetic field of the first permanent magnet 53, the arc and the separated moving contact magnetic field loop are led to extend to the maximum extent, so that the arc voltage Ue is increased, and the arc extinguishing effect is achieved.
The second extension part is raised towards the moving track of the moving contact 2 to form a second boss 512, and the edge of the second boss 512 is close to the moving track of the moving contact 2.
As shown in fig. 1, a second permanent magnet 6 is disposed on the movable contact rotating frame 4, and the second permanent magnet 6 forms a magnetic field for pushing the arc to the arc splitter plate 52. Further accelerating the arc into the arc chute.
The moving contact rotating frame 4 protrudes towards the outer periphery to form a convex ring part 41, the convex ring part 41 and the second boss 512 are respectively located on two sides of a moving track of the moving contact 2, a second mounting groove is formed in the other side, away from the moving track of the moving contact 2, of the convex ring part 41, and the second permanent magnet 6 is fixed in the second mounting groove.
As shown in fig. 1, the stationary contact 3 is provided with an abutting portion 31 for abutting against the movable contact and an arcing portion 32 extending from an edge of the abutting portion 31 in a direction of an open position of the movable contact 2.
The arc striking part 32 is provided obliquely to the arc splitter plate 52.
And an air outlet 11 is formed in the other side, opposite to the moving contact rotating frame 4, of the arc extinguishing device 5 of the shell 1.
The above description is only an embodiment of the present invention, and is not intended to limit the protection scope of the present invention; the protection scope of the present invention is defined by the claims in the claims, and all equivalent changes and modifications made according to the present invention are within the protection scope of the present invention.
The above disclosure is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the scope of the invention, which is defined by the appended claims.
Claims (10)
1. The utility model provides a rotary type isolator arc extinguishing structure, includes casing (1), moving contact (2), static contact (3), moving contact rolling stock (4), arc control device (5), moving contact rolling stock (4) with casing (1) normal running fit, moving contact (2) are installed on moving contact rolling stock (4), static contact (3) are fixed in casing (1), moving contact rolling stock (4) rotate the in-process moving contact (2) are contradicted or are separated the intercommunication that constitutes the circuit or cut off with the static contact, arc control device (5) include insulating housing (51), follow moving contact (2) moving direction and arrange electric arc division board (52) on insulating housing (51) in proper order and fix first permanent magnet (53) that set up on insulating housing, its characterized in that: the insulation shell (51) is provided with a first extension part which extends from the edge of one side, close to the moving contact rotating frame (4), of the arc partition plate (52) to the edge of the moving contact rotating frame (4), and the first extension part is lifted to the moving track direction of the moving contact (2) to form a first boss (511).
2. The rotary type disconnector arc extinguishing structure of claim 1, wherein: the edge of the first boss (511) is close to the moving track of the moving contact (2).
3. A rotary isolator arc extinguishing structure according to claim 1 or 2, wherein: the arc splitter plates (52) are L-shaped and are arranged on the outer side edge of the first boss (511) far away from the moving contact rotating frame (4) in a fan shape.
4. The rotary type disconnector arc extinguishing structure of claim 1, wherein: the insulating shell (51) is provided with a second extending part extending from one side, away from the static contact (3), of the arc partition plate (52) to the direction of the disconnection position of the moving contact (2), a first mounting groove (513) is formed in the other side, opposite to the moving track of the moving contact (2), of the second extending part, and the first permanent magnet (53) is fixed in the first mounting groove (513).
5. The rotary type disconnector arc extinguishing structure of claim 4, wherein: the second extension part is lifted towards the moving track of the moving contact (2) to form a second boss (512), and the edge of the second boss (512) is arranged close to the moving track of the moving contact (2).
6. A rotary isolator arc extinguishing structure according to claim 4 or 5, wherein: and a second permanent magnet (6) is arranged on the moving contact rotating frame (4), and the second permanent magnet (6) forms a magnetic field for pushing the electric arc to the electric arc splitter plate (52).
7. The rotary type disconnector arc extinguishing structure of claim 6, wherein: the moving contact rotating frame (4) protrudes towards the outer periphery to form a convex ring part (41), the convex ring part (41) and the second boss (512) are respectively located on two sides of a moving track of the moving contact (2), a second mounting groove is formed in the other side, away from the moving track of the moving contact (2), of the convex ring part (41), and the second permanent magnet (6) is fixed in the second mounting groove.
8. The rotary type disconnector arc extinguishing structure of claim 1, wherein: the static contact (3) is provided with an abutting part (31) abutting against the moving contact and an arc-shaped part (32) extending from the edge of the abutting part (31) to the direction of the breaking position of the moving contact (2).
9. The rotary type disconnector arc extinguishing structure of claim 8, wherein: the arc starting part (32) is obliquely arranged towards the arc splitter plate (52).
10. The rotary type disconnector arc extinguishing structure of claim 1, wherein: and an air outlet (11) is formed in the other side, opposite to the moving contact rotating frame (4), of the arc extinguishing device (5) of the shell (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120186634.6U CN214378185U (en) | 2021-01-22 | 2021-01-22 | Arc extinguishing structure of rotary type isolator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120186634.6U CN214378185U (en) | 2021-01-22 | 2021-01-22 | Arc extinguishing structure of rotary type isolator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214378185U true CN214378185U (en) | 2021-10-08 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120186634.6U Active CN214378185U (en) | 2021-01-22 | 2021-01-22 | Arc extinguishing structure of rotary type isolator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214378185U (en) |
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2021
- 2021-01-22 CN CN202120186634.6U patent/CN214378185U/en active Active
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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. |