CN212934479U - Vacuum arc-extinguishing chamber assembly and connecting device - Google Patents
Vacuum arc-extinguishing chamber assembly and connecting device Download PDFInfo
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- CN212934479U CN212934479U CN202022188120.2U CN202022188120U CN212934479U CN 212934479 U CN212934479 U CN 212934479U CN 202022188120 U CN202022188120 U CN 202022188120U CN 212934479 U CN212934479 U CN 212934479U
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- contact support
- moving contact
- vacuum
- vacuum arc
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Abstract
The utility model relates to a high-tension apparatus technical field is a vacuum arc extinguishing chamber subassembly and connecting device particularly, touch and indicate, insulating pull rod and lead electrical pillar including vacuum arc extinguishing chamber, moving contact support, spring, including static contact and moving contact in the vacuum arc extinguishing chamber, the moving contact with it passes through to lead electrical pillar the screw rod of insulating pull rod lower extreme is connected, it installs on the spring touches and indicates to lead electrical pillar, the spring touches to indicate to inlay in the moving contact support, through lead electrical pillar with moving contact support extrudees each other the spring touches and indicates to connect in order to realize the conductor. The utility model provides a vacuum arc-extinguishing chamber subassembly and connecting device touches fat through extrusion spring and causes spring deformation through leading electrical pillar and moving contact support, can be better when making to lead electrical pillar gliding from top to bottom with moving contact support zonulae occludens.
Description
Technical Field
The utility model relates to a high-voltage apparatus technical field is a vacuum arc extinguishing chamber subassembly and connecting device particularly.
Background
The vacuum arc-extinguishing chamber in the vacuum bubble is an electric vacuum device which utilizes high-vacuum working insulating arc-extinguishing medium and utilizes a pair of contacts sealed in vacuum to implement the on-off function of power circuit. When the power frequency current is close to zero, the contact opening is increased, the plasma of the vacuum arc is diffused to the periphery quickly, after the arc current passes zero, the medium of the contact gap is changed from a conductor to an insulator quickly, and then the current is cut off. Due to the special structure of the contact, the contact gap can generate a proper longitudinal magnetic field during arcing, and the magnetic field can enable the electric arc to be uniformly distributed on the surface of the contact and maintain low electric arc voltage, so that the vacuum arc extinguish chamber has higher medium strength recovery speed after the arc, small electric arc energy and small corrosion rate. Therefore, the capacity of breaking the current of the vacuum arc-extinguishing chamber is improved, and the service life of the vacuum arc-extinguishing chamber is prolonged. However, in a specific using process, flexible connection of the conductors is difficult to realize and the movable contact and the conductive column can be tightly connected. Meanwhile, the temperature rise problem is also a difficult problem to be solved urgently because the temperature rises rapidly in the using process.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to solve prior art not enough, provide one kind make lead can with the movable contact more zonulae occludens when leading electrical pillar gliding from top to bottom a vacuum arc-extinguishing chamber subassembly and connecting device
In order to achieve the above object, the present invention adopts the following technical solutions:
the utility model provides a vacuum arc-extinguishing chamber subassembly, touches including vacuum arc-extinguishing chamber (1), moving contact support (2), spring and indicates (3), insulating pull rod (4) and lead electrical pillar (5), include static contact and moving contact in vacuum arc-extinguishing chamber (1), the moving contact with it passes through to lead electrical pillar (5) the screw rod of insulating pull rod (4) lower extreme is connected, it installs on spring touches and indicates (3) to lead electrical pillar (5), the spring touches and indicates (3) to inlay in moving contact support (2), through it extrudees each other to lead electrical pillar (5) with moving contact support (2) the spring touches and indicates (3) in order to realize that the conductor connects.
Furthermore, a V-shaped groove is formed in the moving contact support (2) and used for embedding the spring contact finger (3).
The utility model discloses still include following technical scheme:
a connecting device of a vacuum arc extinguish chamber comprises the vacuum arc extinguish chamber component and an arc extinguish chamber static contact bracket (6), wherein the arc extinguish chamber static contact bracket (6) is connected with a static contact of the vacuum arc extinguish chamber (1),
furthermore, the arc extinguish chamber static contact support (6) and the moving contact support (2) are fixedly connected through an insulating plate (7), a bent plate (8) is arranged at the upper end of the insulating plate (7), and the insulating pull rod (4) is limited through the bent plate (8).
Furthermore, the joints of the insulating plate (7) and the arc extinguish chamber static contact support (6), the moving contact support (2) and the bent plate (8) are all provided with shielding rings (9).
Furthermore, slotted holes are formed in the extension surfaces of the two sides of the insulating plate (7).
Further, the surface of the insulating plate (7) adopts a vacuum dip coating process.
Beneficial effects of the utility model
The utility model provides an advantage of vacuum arc extinguishing chamber subassembly and connecting device includes following several aspects:
1. the static contact end of the vacuum arc extinguish chamber is connected with the static contact bracket, the movable contact end of the arc extinguish chamber is connected with the conductive column, and the screw rod at the lower end of the insulating pull rod is in threaded splicing with the movable contact end of the arc extinguish chamber, so that the conductive column is tightly connected with the movable contact end of the arc extinguish chamber; the conductive column and the moving contact support are contacted with grease through the extrusion spring to cause the spring to deform, so that the conductive column can better be tightly connected with the moving contact support while sliding up and down.
2. The connection parts of the insulating plate, the bracket and the bent plate are provided with shielding rings, so that the voltage sharing and the supporting are realized;
3. the body structures are arranged in a bilateral symmetry mode, and the electric field distribution is uniform; the contact area of the upper bracket conductor and the lower bracket conductor of the arc extinguish chamber is large, and the problem of temperature rise is well solved.
4. The surface of the insulating plate adopts a vacuum paint dipping process, so that the insulating property is improved; the slot holes are added on the extended surface, so that the creepage of the extended surface is effectively blocked.
Drawings
Fig. 1 schematically illustrates a schematic view of a vacuum interrupter assembly according to the present invention;
fig. 2 schematically shows a structure of a vacuum interrupter connecting device according to the present invention;
in the figure: 1. vacuum arc extinguish chamber 2, moving contact support 3, spring contact finger 4, insulating pull rod 5, conductive column 6, arc extinguish chamber static contact support 7, insulating plate 8, bent plate 9 and shielding ring
Detailed Description
The technical solution adopted by the present invention will be further explained with reference to the accompanying drawings and embodiments.
Referring to fig. 1, in the present embodiment, a vacuum arc extinguishing chamber assembly is provided, in which a moving contact support 2, a spring contact finger 3, an insulating pull rod 4 and a conductive column 5 are added on the basis of an existing vacuum arc extinguishing chamber 1, wherein the vacuum arc extinguishing chamber 1 includes a fixed contact and a moving contact, the moving contact is connected to the conductive column 5 through a screw rod at the lower end of the insulating pull rod 4, the conductive column 5 is installed on the spring contact finger 3, the spring contact finger 3 is embedded in the moving contact support 2, the spring contact finger 3 is mutually extruded through the conductive column 5 and the moving contact support 2 to realize conductor connection, and a V-shaped groove is formed in the moving contact support 2 and used for embedding the spring contact finger 3.
The movable contact end of the arc extinguish chamber 1 is connected with the conductive column 5 through a screw rod at the lower end of the insulating pull rod 4; spring touches and indicates 3 inlays into "V" type inslot of support 2, leads electrical pillar 5 and support 2 and touches fat 3 deformations realization conductor connection through the extrusion spring.
Referring to fig. 2, this embodiment provides a vacuum interrupter connecting device, which includes, in addition to the vacuum interrupter component, an interrupter static contact support 6, an insulating plate 7, a bent plate 8, and a shielding ring 9, where the interrupter static contact support 6 is connected to the interrupter static contact, the interrupter static contact support 6 is connected to and fixed to the moving contact support 2 through the insulating plate 7, and a space formed by the interrupter static contact support 6 and the moving contact support 2 is used for accommodating the vacuum interrupter.
The upper end of the insulating plate 7 is provided with a bent plate 8, and the insulating pull rod 4 is limited through the bent plate 8. So that the insulated pull rod cannot be separated from the connecting device in the process of moving up and down.
And shielding rings 9 are arranged at the joints of the insulating plate 7, the arc extinguish chamber static contact support 6, the moving contact support 2 and the bent plate 8, and are used for sharing voltage and supporting the connecting device.
The two side extension surfaces of the insulating plate 7 are provided with slotted holes, so that creepage of the extension surfaces is effectively blocked, and the surfaces of the insulating plate are subjected to vacuum paint dipping process, so that the insulating property is improved
The utility model provides a vacuum arc extinguishing chamber subassembly and connecting device's advantage lies in:
1. the static contact end of the vacuum arc extinguish chamber is connected with the static contact bracket, the movable contact end of the arc extinguish chamber is connected with the conductive column, and the screw rod at the lower end of the insulating pull rod is in threaded splicing with the movable contact end of the arc extinguish chamber, so that the conductive column is tightly connected with the movable contact end of the arc extinguish chamber; the conductive column and the moving contact support are contacted with grease through the extrusion spring to cause the spring to deform, so that the conductive column can better be tightly connected with the moving contact support while sliding up and down.
2. The connection parts of the insulating plate, the bracket and the bent plate are provided with shielding rings, so that the voltage sharing and the supporting are realized;
3. the body structures are arranged in a bilateral symmetry mode, and the electric field distribution is uniform; the contact area of the upper bracket conductor and the lower bracket conductor of the arc extinguish chamber is large, and the problem of temperature rise is well solved.
4. The surface of the insulating plate adopts a vacuum paint dipping process, so that the insulating property is improved; the slot holes are added on the extended surface, so that the creepage of the extended surface is effectively blocked.
The above, only for the concrete implementation of this utility model, but the scope of protection of this utility model is not limited to this, and any person skilled in this technical field is in the technical scope of this utility model discloses, according to the technical scheme of this utility model and novel design add in equal replacement or change, all should be covered in the scope of protection of this utility model.
Claims (7)
1. The utility model provides a vacuum arc-extinguishing chamber subassembly, its characterized in that, includes vacuum arc-extinguishing chamber (1), moving contact support (2), spring touch and indicate (3), insulating pull rod (4) and lead electrical pillar (5), include static contact and moving contact in vacuum arc-extinguishing chamber (1), the moving contact with lead electrical pillar (5) to pass through the screw rod of insulating pull rod (4) lower extreme is connected, it installs on spring touch and indicates (3) to lead electrical pillar (5), the spring touch indicate (3) to inlay in moving contact support (2), through lead electrical pillar (5) with moving contact support (2) extrusion each other the spring touch indicates (3) in order to realize that the conductor is connected.
2. A vacuum interrupter chamber assembly according to claim 1 wherein the movable contact support (2) is provided with a V-shaped groove for receiving the spring contact finger (3).
3. A vacuum arc extinguish chamber connecting device comprises the vacuum arc extinguish chamber assembly as claimed in any one of claims 1 to 2, and is characterized by further comprising an arc extinguish chamber static contact support (6), wherein the arc extinguish chamber static contact support (6) is connected with a static contact of a vacuum arc extinguish chamber (1).
4. The connecting device for the vacuum arc extinguish chamber according to claim 3, wherein the fixed contact support (6) and the movable contact support (2) of the arc extinguish chamber are fixedly connected through an insulating plate (7), a bent plate (8) is arranged at the upper end of the insulating plate (7), and the insulating pull rod (4) is limited through the bent plate (8).
5. A vacuum interrupter connecting device according to claim 4, characterized in that the joints of the insulating plate (7) and the interrupter stationary contact support (6), the movable contact support (2) and the bent plate (8) are provided with shielding rings (9).
6. A vacuum interrupter connecting device according to claim 5, characterized in that the insulating plate (7) is provided with slots on both sides.
7. A vacuum interrupter connecting device according to claim 6, characterized in that the surface of the insulating plate (7) is vacuum dip painted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022188120.2U CN212934479U (en) | 2020-09-29 | 2020-09-29 | Vacuum arc-extinguishing chamber assembly and connecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022188120.2U CN212934479U (en) | 2020-09-29 | 2020-09-29 | Vacuum arc-extinguishing chamber assembly and connecting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212934479U true CN212934479U (en) | 2021-04-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022188120.2U Active CN212934479U (en) | 2020-09-29 | 2020-09-29 | Vacuum arc-extinguishing chamber assembly and connecting device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113985076A (en) * | 2021-10-26 | 2022-01-28 | 西安高压电器研究院有限责任公司 | Arc extinguish chamber opening distance changing device |
-
2020
- 2020-09-29 CN CN202022188120.2U patent/CN212934479U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113985076A (en) * | 2021-10-26 | 2022-01-28 | 西安高压电器研究院有限责任公司 | Arc extinguish chamber opening distance changing device |
| CN113985076B (en) * | 2021-10-26 | 2024-01-30 | 西安高压电器研究院股份有限公司 | Arc extinguishing chamber variable-spacing device |
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