CN219958865U - Split type fast switch - Google Patents
Split type fast switch Download PDFInfo
- Publication number
- CN219958865U CN219958865U CN202321462964.9U CN202321462964U CN219958865U CN 219958865 U CN219958865 U CN 219958865U CN 202321462964 U CN202321462964 U CN 202321462964U CN 219958865 U CN219958865 U CN 219958865U
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- Prior art keywords
- switch
- pull rod
- fixed contact
- energy storage
- storage capacitor
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- 239000012212 insulator Substances 0.000 claims abstract description 5
- 239000003990 capacitor Substances 0.000 claims description 20
- 238000004146 energy storage Methods 0.000 claims description 20
- 230000003068 static effect Effects 0.000 claims description 12
- 230000008878 coupling Effects 0.000 claims description 2
- 238000010168 coupling process Methods 0.000 claims description 2
- 238000005859 coupling reaction Methods 0.000 claims description 2
- 230000007246 mechanism Effects 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 abstract description 3
- 238000012423 maintenance Methods 0.000 abstract description 3
- 230000009471 action Effects 0.000 abstract description 2
- 230000005540 biological transmission Effects 0.000 abstract description 2
- 238000009434 installation Methods 0.000 abstract description 2
- 238000004880 explosion Methods 0.000 description 6
- 230000002265 prevention Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 229910052573 porcelain Inorganic materials 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Landscapes
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
The utility model discloses a split type quick switch which comprises a vacuum arc-extinguishing chamber, and a fixed contact a and a fixed contact b which are symmetrically arranged in the vacuum arc-extinguishing chamber, wherein the fixed contact a is connected with a busbar a, the fixed contact b is connected with a busbar b through soft connection, the fixed contact b is connected to the inner wall of the vacuum arc-extinguishing chamber through a corrugated pipe, the lower end of the fixed contact b is connected with an upper pull rod, the upper pull rod is connected with a lower pull rod through a pull rod insulator, the lower pull rod is driven by a driving structure, and a state retaining structure is arranged on the lower pull rod. The utility model has less mechanical parts, easy installation and maintenance and low failure rate; the vertical action mechanism has high transmission efficiency, high opening and closing speed and high breaking capacity; the bistable state retaining mechanism has high mechanical strength and strong stability, and the controller monitors traveling waves by simulating an actual circuit waveform diagram, so that the switch is close to a zero crossing point when being opened, and can be opened aiming at large current, so that the applicability is good.
Description
Technical Field
The utility model relates to the technical field of fast switches, in particular to a split fast switch.
Background
The vacuum arc-extinguishing chamber, also called vacuum switch tube, is a core component of a medium-high voltage power switch, and has the main functions of enabling the medium-high voltage power switch to quickly extinguish arc and inhibit current after the power supply is cut off through the excellent insulativity of vacuum in the tube, so as to avoid accidents and accidents. Has the advantages of energy saving, material saving, fire prevention, explosion prevention, small volume, long service life low maintenance cost, reliable operation, no pollution and the like. The vacuum explosion chamber is divided into explosion chamber and load switch explosion chamber for the circuit breaker from the usage again, and the transformer substation and the electric wire netting facility in the circuit breaker explosion chamber mainly used power sector, load switch explosion chamber mainly used end user of electric wire netting, fast switch are when closing a floodgate, because the speed is faster, produce great pressure easily between the drive structure, lead to drive structure's stability relatively poor.
Disclosure of Invention
The utility model aims to solve the defects in the prior art and provides a split type quick switch.
In order to achieve the above purpose, the present utility model adopts the following technical scheme:
the utility model provides a split type fast switch, includes vacuum interrupter and symmetry locate static contact a and static contact b in it, and static contact a is connected with female row a, and static contact b is connected with female row b through the flexible coupling, static contact b passes through the bellows and connects at vacuum interrupter inner wall, and static contact b's lower extreme is connected with the pull rod, and the pull rod is connected with the pull rod down through the pull rod insulator, and the pull rod is driven by drive structure down, installs state retaining structure on the pull rod down.
Preferably, the driving structure comprises an eddy current disc fixedly connected to the lower pull rod, and a brake-separating coil and a brake-closing coil are correspondingly arranged on the upper side and the lower side of the eddy current disc respectively and controlled by a control circuit.
Preferably, the state holding structure comprises an armature fixedly connected to the lower pull rod, and a closing holding permanent magnet and a separating holding permanent magnet are respectively and correspondingly arranged on the upper side and the lower side of the armature.
Preferably, the control circuit comprises a switching-off control switch, a switching-off energy storage capacitor, a switching-on control switch and a switching-on energy storage capacitor, wherein the switching-off control switch and the switching-off energy storage capacitor are connected in series with a switching-off coil, the switching-on control switch and the switching-on energy storage capacitor are connected in series with the switching-on coil, and the switching-off energy storage capacitor and the switching-on energy storage capacitor are connected in parallel with the same charging power supply.
Preferably, the armature and the vortex plate are provided with vent holes.
Compared with the prior art, the utility model has the beneficial effects that:
1. the mechanical parts are few, the installation and maintenance are easy, and the failure rate is low;
2. the vertical action mechanism has high transmission efficiency, high opening and closing speed and high breaking capacity;
3. the bistable holding mechanism has high mechanical strength and high stability.
Drawings
In order to more particularly and intuitively illustrate an embodiment of the present utility model or a technical solution in the prior art, a brief description of the drawings is provided below, which are required to be used in the description of the embodiment or the prior art.
Fig. 1 is a schematic structural diagram of the present utility model.
In the figure: the vacuum arc-extinguishing device comprises a fixed contact a1, a vacuum arc-extinguishing chamber 2, a fixed contact b3, an upper pull rod 4, a pull rod insulator 5, a closing holding permanent magnet 6, an armature 7, a separating brake holding permanent magnet 8, a separating brake coil 9, an eddy current disc 10, a closing coil 11, a busbar a12, a porcelain bushing 13, a corrugated pipe 14, a flexible connection 15, a busbar b16, a lower pull rod 17, a separating brake control switch 18, a closing control switch 19, a closing energy storage capacitor 20, a separating brake energy storage capacitor 21 and a charging power supply 22.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.
Referring to fig. 1, a split type fast switch comprises a vacuum arc-extinguishing chamber 2, and a fixed contact a1 and a fixed contact b3 symmetrically arranged therein, wherein the fixed contact a1 is connected with a busbar a12, the fixed contact b3 is connected with a busbar b16 through a flexible connection 15, the fixed contact b3 is connected with the inner wall of the vacuum arc-extinguishing chamber 2 through a corrugated pipe 14, the lower end of the fixed contact b3 is connected with an upper pull rod 4, the upper pull rod 4 is connected with a lower pull rod 17 through a pull rod insulator 5, the lower pull rod 17 is driven by a driving structure, and a state retaining structure is arranged on the lower pull rod 17.
In actual control, the controller simulates an actual circuit waveform diagram to perform traveling wave monitoring, so that the switch is close to a zero crossing point when being turned on and off, and thus, the high-current switching-on and off can be performed, and the applicability is good.
In this embodiment, the driving structure includes an eddy current disk 10 fixedly connected to a pull-down rod 17, and a switching-off coil 9 and a switching-on coil 11 are correspondingly disposed on the upper and lower sides of the eddy current disk 10, and the switching-off coil 9 and the switching-on coil 11 are controlled by a control circuit.
In this embodiment, the state holding structure includes an armature 7 fixedly connected to a lower pull rod 17, and a closing holding permanent magnet 6 and a opening holding permanent magnet 8 are respectively provided on the upper and lower sides of the armature 7.
In this embodiment, the control circuit includes a switch-off control switch 18, a switch-off energy storage capacitor 21, a switch-on control switch 19 and a switch-on energy storage capacitor 20, where the switch-off control switch 18 and the switch-off energy storage capacitor 21 are connected in series with the switch-off coil 9, the switch-on control switch 19 and the switch-on energy storage capacitor 20 are connected in series with the switch-on coil 11, and the switch-off energy storage capacitor 21 and the switch-on energy storage capacitor 20 are connected in parallel with the same charging power supply 22.
In this embodiment, all be equipped with the exhaust hole on armature 7 and the vortex dish 10, at the in-process of separating brake, because armature 7 and vortex dish 10 speed are very fast, the air current pressure is great between vortex dish 10 and the separating brake coil 9, is easily by the bullet, plays the exhaust effect through setting up the exhaust hole, improves the stability of closing a floodgate and separating brake.
The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.
Claims (5)
1. The utility model provides a split type fast switch, includes vacuum interrupter (2) and symmetry locate static contact a (1) and static contact b (3) in it, and static contact a (1) is connected with female row a (12), and static contact b (3) are connected with female row b (16) through flexible coupling (15), a serial communication port, static contact b (3) are connected at vacuum interrupter (2) inner wall through bellows (14), and the lower extreme of static contact b (3) is connected with pull rod (4), and pull rod (4) are connected with pull rod (17) down through pull rod insulator (5), and pull rod (17) are driven by driving structure down, install state holding structure on pull rod (17).
2. The split type quick switch according to claim 1, wherein the driving structure comprises an eddy current disc (10) fixedly connected to a pull-down rod (17), an opening coil (9) and a closing coil (11) are correspondingly arranged on the upper side and the lower side of the eddy current disc (10), and the opening coil (9) and the closing coil (11) are controlled by a control circuit.
3. The split type quick switch according to claim 2, wherein the state holding structure comprises an armature (7) fixedly connected to a lower pull rod (17), and a closing holding permanent magnet (6) and a separating holding permanent magnet (8) are respectively arranged on the upper side and the lower side of the armature (7) correspondingly.
4. A split type fast switch according to claim 3, wherein the control circuit comprises a switch-off control switch (18), a switch-off energy storage capacitor (21), a switch-on control switch (19) and a switch-on energy storage capacitor (20), the switch-off control switch (18) and the switch-off energy storage capacitor (21) are connected in series with the switch-off coil (9), the switch-on control switch (19) and the switch-on energy storage capacitor (20) are connected in series with the switch-on coil (11), and the switch-off energy storage capacitor (21) and the switch-on energy storage capacitor (20) are connected in parallel with the same charging power supply (22).
5. A split fast switch as claimed in claim 4, characterised in that the armature (7) and the vortex plate (10) are provided with vent holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321462964.9U CN219958865U (en) | 2023-06-08 | 2023-06-08 | Split type fast switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321462964.9U CN219958865U (en) | 2023-06-08 | 2023-06-08 | Split type fast switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219958865U true CN219958865U (en) | 2023-11-03 |
Family
ID=88553039
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321462964.9U Active CN219958865U (en) | 2023-06-08 | 2023-06-08 | Split type fast switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219958865U (en) |
-
2023
- 2023-06-08 CN CN202321462964.9U patent/CN219958865U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |