CN219180418U - Self-operated contact device of high-voltage isolating switch - Google Patents
Self-operated contact device of high-voltage isolating switch Download PDFInfo
- Publication number
- CN219180418U CN219180418U CN202223080822.4U CN202223080822U CN219180418U CN 219180418 U CN219180418 U CN 219180418U CN 202223080822 U CN202223080822 U CN 202223080822U CN 219180418 U CN219180418 U CN 219180418U
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- contact
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- rod
- arc contact
- sliding block
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Abstract
The utility model discloses a self-operated contact device of a high-voltage isolating switch, which comprises a shell, wherein a mechanical connecting rod is arranged on the left side of the shell, the mechanical connecting rod is connected with an insulating rod to drive the insulating rod to move left and right, a static contact seat is arranged on the right side of the shell, a static arc contact is arranged in the static contact seat, a basin-type insulator is arranged in the middle of the shell, a channel for accommodating a moving contact rod is arranged in the middle of the basin-type insulator, the moving contact rod is arranged in the channel and is driven by the insulating rod to approach or be far away from the static contact seat, a moving arc contact is arranged in an inner cavity of the moving contact rod, the tail part of the moving arc contact can be connected with the static arc contact, the head part of the moving arc contact is in the shape of a stepped shaft, a cavity matched with the shape of the stepped shaft is arranged in the inner cavity of the moving contact rod, and a compression spring is arranged on the outer side of the stepped shaft and is arranged between an end face I of the stepped shaft and an end face II of the cavity.
Description
Technical Field
The utility model relates to a self-operated contact device of a high-voltage isolating switch.
Background
The contact device is an important component of the high-voltage isolating switch, the original isolating switch adopts a common contact device, the switching-off speed of the contact device is low, the contact device has long current bearing time and low arc extinguishing speed, and extremely rapid transient overvoltage VFTO can be generated, so that the equipment body is subjected to destructive discharge to the ground, and the transient overvoltage TEV to the ground and the transient ground potential height TGRP are generated on the shell; TEV and TGRP can cause damage to secondary side elements of the device.
Disclosure of Invention
The utility model aims to solve the defects in the prior art and provides a self-operated contact device of a high-voltage isolating switch.
The utility model provides a high-voltage isolating switch self-operated contact device, which comprises a housin, the left side of casing is equipped with mechanical connecting rod, mechanical connecting rod links to each other with the insulating rod, drive the insulating rod and control and remove, the right side of casing is equipped with quiet contact seat, be equipped with quiet arc contact in the quiet contact seat, the centre of casing is equipped with the basin insulator, basin insulator middle part is equipped with the passageway that holds the moving contact stick, the moving contact stick is located in the passageway and is close or keep away from quiet contact seat through the drive of insulating rod, be equipped with the moving arc contact in the inner chamber of moving contact stick, the afterbody of moving arc contact can link to each other with quiet arc contact, the head of moving arc contact is the shape of step shaft, the inner chamber of moving contact stick is equipped with the cavity that matches with step shaft shape, the outside of step shaft is equipped with compression spring, compression spring locates between terminal surface I and the terminal surface II of cavity of step shaft.
As a further improvement, a sliding block is arranged in the inner cavity of the movable contact rod, the sliding block is arranged at the other end of the end, connected with the movable contact rod, of the insulating rod, the movable arc contact is connected with the sliding block, the sliding block is made of antifriction materials, and one section of the movable arc contact slides in the sliding block.
As a further improvement, the middle part of the movable arc contact is rod-shaped, the tail part of the movable arc contact is a ball head, a gap is arranged between the middle part of the movable arc contact and the inner cavity of the movable contact rod, and the movable arc contact is only contacted with the sliding block so as to reduce the frictional resistance of the movable arc contact in a left-right movement mode.
As a further improvement, the material of the sliding block is polytetrafluoroethylene.
As a further improvement, the insulating rod is made of polytetrafluoroethylene.
As a further improvement, the static arc contact is provided with a socket matched with the ball head at the tail part of the moving arc contact, and the socket is of an expandable structure.
The beneficial effects are that:
the utility model has ingenious design, changes the original common contact device in the high-voltage isolating switch into a self-operated contact device, improves the opening speed, improves the safety of the product, reduces the potential trouble of the product and improves the market competitiveness of the equipment on the premise of ensuring the performance of the product.
Drawings
FIG. 1 is a schematic diagram of the general structure of a high voltage isolator;
FIG. 2 is a schematic view of the connection structure of the contact arrangement;
1. the device comprises a shell 2, a mechanical connecting rod 3, an insulating rod 4, a static contact seat 5, a static arc contact 6, a basin-type insulator 7, a moving contact rod 8, a moving arc contact 9 and a spring.
Detailed Description
The present utility model will be further described in detail with reference to the following examples and drawings for the purpose of enhancing the understanding of the present utility model, which examples are provided for the purpose of illustrating the present utility model only and are not to be construed as limiting the scope of the present utility model.
As shown in fig. 1-2, the self-operated contact device of the high-voltage isolating switch comprises a shell 1, a mechanical connecting rod 2, an insulating rod 3, a static contact seat 4, a static arc contact 5, a basin-type insulator 6, a moving contact rod 7, a moving arc contact 8 and a spring 9.
The utility model provides a high-voltage isolating switch self-operated contact device, including casing 1, the left side of casing 1 is equipped with mechanical connecting rod 2, mechanical connecting rod 2 links to each other with insulating rod 3, drive insulating rod 3 and move about, the right side of casing 1 is equipped with stationary contact seat 4, be equipped with stationary arc contact 5 in the stationary contact seat 4, the centre of casing 1 is equipped with basin insulator 6, basin insulator 6 middle part is equipped with the passageway that holds moving contact rod 7, moving contact rod 7 locates in the passageway and is close or keep away from stationary contact seat 4 through the drive of insulating rod 3, be equipped with moving arc contact 8 in moving contact rod 7's the inner chamber, moving arc contact 8's afterbody can link with stationary arc contact 5, moving arc contact 8's head is the shape of step axle, moving contact rod 7's inner chamber is equipped with the cavity that matches with the step axle shape, the outside of step axle is equipped with compression spring 9, compression spring 9 locates between the terminal surface of step axle and the terminal surface of cavity.
The inner cavity of the movable contact rod 7 is provided with a sliding block, the sliding block is arranged at the other end of the end, connected with the movable contact rod 7, of the insulating rod 3, the movable arc contact 8 is connected with the sliding block, the sliding block is made of antifriction materials, and one section of the movable arc contact 8 slides in the sliding block.
The middle part of the moving arc contact 8 is rod-shaped, the tail part of the moving arc contact 8 is a ball head, a gap is arranged between the middle part of the moving arc contact 8 and the inner cavity of the moving contact rod 7, and the moving arc contact is only contacted with the sliding block so as to reduce the frictional resistance of the moving arc contact 8 in a left-right movement mode.
The sliding block is made of polytetrafluoroethylene.
The insulating rod 3 is made of polytetrafluoroethylene.
The static arc contact 5 is provided with a socket matched with the ball head at the tail part of the movable arc contact 8, and the socket is of an expandable structure.
When the brake is opened, the mechanical connecting rod 2 pulls the insulating rod 3 to move leftwards, the insulating rod 3 drives the moving contact rod 7 to move leftwards and gradually away from the static arc contact 5, the moving contact rod 7 transmits the tensile force to the moving arc contact 8 through the compression spring 9, and when the elastic force of the compression spring 9 and the friction force of the socket to the ball head of the moving contact rod 7 reach a critical value, the moving contact rod 7 can be pulled out instantly, so that the brake opening speed is improved, and the safety of a product is improved on the premise of ensuring the performance of the product.
The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the utility model.
Claims (6)
1. The utility model provides a high-voltage isolating switch self-operated contact device, a serial communication port, which comprises a housin, the left side of casing is equipped with mechanical connecting rod, mechanical connecting rod links to each other with the insulating rod, drive the insulating rod and control and remove, the right side of casing is equipped with the static contact seat, be equipped with quiet arc contact in the static contact seat, the centre of casing is equipped with the basin insulator, basin insulator middle part is equipped with the passageway that holds the moving contact stick, the moving contact stick is located in the passageway and is close or keep away from the static contact seat through the drive of insulating rod, be equipped with the moving arc contact in the inner chamber of moving contact stick, the afterbody of moving arc contact can link to each other with quiet arc contact, the head of moving arc contact is the shape of step axle, the inner chamber of moving contact stick is equipped with the cavity that matches with the step axle shape, the outside of step axle is equipped with compression spring, compression spring locates between terminal surface I and the terminal surface II of cavity of step axle.
2. The self-operated contact device of the high-voltage isolating switch according to claim 1, wherein a sliding block is arranged in an inner cavity of the moving contact rod, the sliding block is arranged at the other end of the end, connected with the moving contact rod, of the insulating rod, the moving arc contact is connected with the sliding block, the sliding block is made of antifriction materials, and one section of the moving arc contact slides in the sliding block.
3. The self-operated contact device of the high-voltage isolating switch according to claim 2, wherein the middle part of the movable arc contact is rod-shaped, the tail part of the movable arc contact is a ball head, a gap is arranged between the middle part of the movable arc contact and the inner cavity of the movable contact rod, and the gap is only contacted with the sliding block so as to reduce the frictional resistance of the movable arc contact moving leftwards and rightwards.
4. A high voltage disconnector contact assembly according to claim 2 or 3, in which the material of the slider is polytetrafluoroethylene.
5. A high voltage disconnector contact assembly according to claim 1, 2 or 3, characterized in that the insulating rod is made of polytetrafluoroethylene.
6. The self-operated contact device of the high-voltage isolating switch as claimed in claim 2, wherein the static arc contact is provided with a socket matched with a ball head at the tail part of the moving arc contact, and the socket is of an expandable structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223080822.4U CN219180418U (en) | 2022-11-21 | 2022-11-21 | Self-operated contact device of high-voltage isolating switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223080822.4U CN219180418U (en) | 2022-11-21 | 2022-11-21 | Self-operated contact device of high-voltage isolating switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219180418U true CN219180418U (en) | 2023-06-13 |
Family
ID=86665354
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223080822.4U Active CN219180418U (en) | 2022-11-21 | 2022-11-21 | Self-operated contact device of high-voltage isolating switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219180418U (en) |
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2022
- 2022-11-21 CN CN202223080822.4U patent/CN219180418U/en active Active
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