CN212161619U - Transmission vacuum on-load tap-changer - Google Patents
Transmission vacuum on-load tap-changer Download PDFInfo
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- CN212161619U CN212161619U CN202021298186.0U CN202021298186U CN212161619U CN 212161619 U CN212161619 U CN 212161619U CN 202021298186 U CN202021298186 U CN 202021298186U CN 212161619 U CN212161619 U CN 212161619U
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- contact
- mounting block
- fixedly connected
- vacuum
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Abstract
The utility model discloses a transmission vacuum on-load tap-changer, comprising a base plate, the inside of bottom plate is provided with the shifting chute, the upper end fixedly connected with main casing body of bottom plate, the inside swing joint screw rod of the main casing body. The utility model discloses a beneficial effect motor's rotation can drive and promote the spiral shell piece and remove, promote the spiral shell piece and drive the movable plate, movable plate bottom fixedly connected with first installation piece and second installation piece, first installation piece and second installation piece internally mounted have first vacuum switch and second vacuum switch, the reducible electric arc of first vacuum switch and second vacuum switch, first installation piece and second installation piece bottom swing joint have, the first contact plate and the second contact plate that the same slope set up carry out the elastic contact of metal contact, first contact plate and second contact plate bottom all are connected with curved contact piece, the contact piece can carry out reciprocating sliding contact, the screw rod can carry on spacingly simultaneously, be suitable for the miniature transformer installation.
Description
Technical Field
The utility model belongs to the technical field of on-load tap-changer, concretely relates to transmission vacuum on-load tap-changer.
Background
An on-load tap changer is a switching device which provides constant voltage for a transformer when the load changes. The basic principle is to realize the switching between taps in the transformer winding under the condition of ensuring that the load current is not interrupted, thereby changing the number of turns of the winding, namely the voltage ratio of the transformer, and finally realizing the purpose of voltage regulation. In the current power transmission and transformation industry, large transformers are widely provided with on-load tap changers, which play an important role in ensuring the voltage quality of systems and users. At present, on-load tap-changers are mostly installed in developed countries for transformers with the capacity of 10MVA and above, and on-load tap-changing transformers are increasingly adopted in power systems and users in China. While the on-load tap changer is its most critical and expensive component.
The contact point of the existing tapping switch is insufficient, the transverse movement is not fast and convenient enough, the tapping efficiency is not high, the moving part cannot be effectively locked, the existing tapping switch is not suitable for a small transformer, and the device cost is high.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a transmission vacuum has on-load tap-changer to solve the problem that proposes among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme: a transmission vacuum on-load tap-changer comprises a bottom plate, wherein a moving groove is arranged in the bottom plate, a main shell is fixedly connected to the upper end of the bottom plate, a screw rod is movably connected in the main shell, a motor is fixedly connected to one side of the main shell, a control panel is connected to the upper end of the motor, a pushing screw block is connected to the screw rod in a threaded manner, an insulating block is fixedly connected to the bottom of the pushing screw block, a moving plate is fixedly connected to the bottom of the insulating block, a first mounting block and a second mounting block are fixedly connected to the bottom of the moving plate, a first vacuum switch is fixedly connected in the first mounting block, a first contact plate is movably connected to the bottom of the first mounting block, a contact block is fixedly connected to the bottom of the first contact plate, a spring is connected to the upper end of the first contact plate, and the other end, the vacuum switch is characterized in that a second vacuum switch is connected inside the second mounting block, a second contact plate is movably connected to the bottom of the second mounting block, a metal plate is fixedly connected to the upper end of the bottom plate, and a connecting buckle is fixedly connected to one side of the metal plate.
Preferably, the setting length of the moving groove is matched with the moving stroke of the moving plate, and the moving groove is clamped with the external metal contact bottom of the transformer.
Preferably, the inside of promoting the spiral shell piece sets up the screw hole with screw rod assorted, the spacing joint of one end and the activity of main casing body of screw rod.
Preferably, the first mounting block and the second mounting block are symmetrically arranged at the bottom of the moving plate, and the first mounting block and the second mounting block are both arranged in a hollow manner.
Preferably, one side of the moving plate is provided with a side clamping groove, and the side clamping groove is in contact clamping connection with the metal plate.
Preferably, the first contact plate and the second contact plate are arranged at the same inclination angle, and the first contact plate and the second contact plate are arranged at the same inclination angle.
Preferably, the first vacuum switch and the second vacuum switch are connected with the moving plate, the first contact plate and the second contact plate through connecting wires, and the first vacuum switch and the second vacuum switch are clamped and arranged in the first mounting block and the second mounting block.
Compared with the prior art, the beneficial effects of the utility model are that:
(1) the inner part of the bottom plate is provided with a moving groove, the upper end of the bottom plate is fixedly connected with a main shell, the inner part of the main shell is movably clamped with a screw rod, the screw rod is connected with a motor, the motor can drive a pushing screw block to move, the pushing screw block drives a moving plate, the bottom of the moving plate is fixedly connected with a first mounting block and a second mounting block, a first vacuum switch and a second vacuum switch are mounted in the first mounting block and the second mounting block, the electric arcs can be reduced by the first vacuum switch and the second vacuum switch, the safety performance is improved, the bottoms of the first mounting block and the second mounting block are movably connected, a first contact plate and a second contact plate which are arranged in the same inclination way are in elastic contact with metal contacts, the bottoms of the first contact plate and the second contact plate are both connected with arc-shaped contact blocks, the contact blocks can be in reciprocating sliding contact to carry out shunting, the transformer is suitable for mounting of small transformers.
(2) The side clamping groove is connected with the metal plate in a contact mode, the metal plate is clamped through the side clamping groove, the metal plate is clamped and conductive in a clamped mode, and meanwhile the metal plate can be clamped and limited by the side clamping of the movable plate, so that the movable plate can be moved horizontally conveniently.
Drawings
Fig. 1 is a schematic perspective view of the present invention;
FIG. 2 is a schematic view of the movable plate of the present invention;
fig. 3 is a schematic view of the connection of the metal plates according to the present invention.
In the figure: 1. a base plate; 2. a moving groove; 3. a main housing; 4. a screw; 5. a motor; 6. a control panel; 7. pushing the screw block; 8. an insulating block; 9. moving the plate; 10. a side card slot; 11. a first mounting block; 12. a first vacuum switch; 13. a first contact plate; 14. a contact block; 15. a spring; 16. a second mounting block; 17. a second vacuum switch; 18. a second contact plate; 19. a metal plate; 20. a connecting buckle.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-3, the present invention provides a transmission vacuum on-load tap changer, which comprises a bottom plate 1, a moving groove 2 is arranged inside the bottom plate 1, a main housing 3 is fixedly connected to the upper end of the bottom plate 1, a screw rod 4 is movably connected inside the main housing 3, a motor 5 is fixedly connected to one side of the main housing 3, a control board 6 is connected to the upper end of the motor 5, a pushing screw block 7 is connected to the screw rod 4 by screw thread, an insulating block 8 is fixedly connected to the bottom of the pushing screw block 7, a moving plate 9 is fixedly connected to the bottom of the insulating block 8, a first mounting block 11 and a second mounting block 16 are fixedly connected to the bottom of the moving plate 9, a first vacuum switch 12 is fixedly connected to the inside of the first mounting block 11, a first contact plate 13 is movably connected to the bottom of the first mounting block 11, a contact block 14 is fixedly connected to the bottom of the, the other end of the spring 15 is connected with the first mounting block 11, the inside of the second mounting block 16 is connected with a second vacuum switch 17, the bottom of the second mounting block 16 is movably connected with a second contact plate 18, the upper end of the bottom plate 1 is fixedly connected with a metal plate 19, and one side of the metal plate 19 is fixedly connected with a connecting buckle 20.
In this embodiment, preferably, the length of the moving slot 2 is matched with the moving stroke of the moving plate 9, the moving slot 2 is clamped with the external metal contact bottom of the transformer, and the moving plate 9 can be moved through the moving slot 2 to perform tapping.
In this embodiment, preferably, the screw hole matched with the screw rod 4 is arranged in the pushing screw block 7, one end of the screw rod 4 is movably clamped with the main housing 3, and the pushing screw block 7 is pushed by the screw rod 4 to push the tapping.
In this embodiment, preferably, the first mounting block 11 and the second mounting block 16 are symmetrically disposed at the bottom of the moving plate 9, the first mounting block 11 and the second mounting block 16 are both hollow, the first vacuum switch 12 and the second vacuum switch 17 are correspondingly mounted inside the first mounting block 11 and the second mounting block 16, and the first mounting block 11 and the second mounting block 16 which are symmetrically disposed can be connected in a load-carrying manner during tapping, so that the tapping with continuous load is realized.
In this embodiment, preferably, one side of the moving plate 9 is provided with a side clamping groove 10, the side clamping groove 10 is in contact clamping connection with the metal plate 19, the metal plate 19 is clamped through the side clamping groove 10, the metal plate 19 is clamped and electrically conductive, and meanwhile, the metal plate 19 can be used for side clamping limitation on the moving plate 9, so that horizontal movement is facilitated.
In this embodiment, it is preferable that the first contact plate 13 and the second contact plate 18 are disposed at the same inclination angle, the first contact plate 13 and the second contact plate 18 disposed at the same inclination angle perform elastic contact of the metal contact, the bottom portions of the first contact plate 13 and the second contact plate 18 are both connected to the arc-shaped contact block 14, and the contact block 14 can perform reciprocating sliding contact to perform tapping.
In this embodiment, preferably, the first vacuum switch 12 and the second vacuum switch 17 are connected to the moving plate 9 and the first contact plate 13 and the second contact plate 18 through connecting wires, the first vacuum switch 12 and the second vacuum switch 17 are clamped and arranged inside the first mounting block 11 and the second mounting block 16, the first vacuum switch 12 and the second vacuum switch 17 can reduce electric arcs generated during tapping, and the safety performance of the device is improved.
The utility model discloses a theory of operation and use flow: when the device is used, a moving groove 2 is arranged in a bottom plate 1, a main shell 3 is fixedly connected at the upper end of the bottom plate 1, a screw rod 4 is movably clamped in the main shell 3, the screw rod 4 is connected with a motor 5, the motor 5 can drive a pushing screw block 7 to move, the pushing screw block 7 drives a moving plate 9, a first mounting block 11 and a second mounting block 16 are fixedly connected at the bottom of the moving plate 9, a first vacuum switch 12 and a second vacuum switch 17 are mounted in the first mounting block 11 and the second mounting block 16, the first vacuum switch 12 and the second vacuum switch 17 can reduce electric arcs and improve safety performance, the bottoms of the first mounting block 11 and the second mounting block 16 are movably connected, a first contact plate 13 and a second contact plate 18 which are arranged in the same inclination are in elastic contact with metal contacts, and arc-shaped contact blocks 14 are connected at the bottoms of the first contact plate 13 and the second contact plate 18, contact block 14 can carry out reciprocal sliding contact, carries out the shunting, and the shunting is fast and stable, and bottom plate 1 upper end fixedly connected with metal sheet 19, one side of movable plate 9 are provided with side draw-in groove 10, and side draw-in groove 10 and metal sheet 19 contact joint carry out metal sheet 19's joint through side draw-in groove 10, and the joint of carrying out metal sheet 19 is electrically conductive, and metal sheet 19 can carry out the avris chucking spacing, the horizontal migration of being convenient for to movable plate 9 simultaneously.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. A transmission vacuum on-load tap-changer comprises a bottom plate (1), and is characterized in that: the movable type vacuum switch is characterized in that a moving groove (2) is formed in the bottom plate (1), a main shell (3) is fixedly connected to the upper end of the bottom plate (1), a screw rod (4) is movably connected to the inside of the main shell (3), a motor (5) is fixedly connected to one side of the main shell (3), a control plate (6) is connected to the upper end of the motor (5), a pushing screw block (7) is connected to the screw rod (4) in a threaded manner, an insulating block (8) is fixedly connected to the bottom of the pushing screw block (7), a moving plate (9) is fixedly connected to the bottom of the insulating block (8), a first mounting block (11) and a second mounting block (16) are fixedly connected to the bottom of the moving plate (9), a first vacuum switch (12) is fixedly connected to the inside of the first mounting block (11), a first contact plate (13) is movably connected to the, the bottom fixedly connected with contact piece (14) of first contact board (13), the upper end of first contact board (13) is connected with spring (15), first installation piece (11) is connected to the other end of spring (15), the internal connection of second installation piece (16) has second vacuum switch (17), the bottom swing joint of second installation piece (16) has second contact board (18), the upper end fixedly connected with sheet metal (19) of bottom plate (1), one side fixedly connected with connector link (20) of sheet metal (19).
2. A geared vacuum on-load tap changer according to claim 1 wherein: the moving groove (2) is provided with a length matched with the moving stroke of the moving plate (9), and the moving groove (2) is connected with the external metal contact bottom of the transformer in a clamping mode.
3. A geared vacuum on-load tap changer according to claim 1 wherein: the inside of promotion spiral shell piece (7) sets up and screw rod (4) assorted screw hole, the spacing joint of one end and the activity of main casing body (3) of screw rod (4).
4. A geared vacuum on-load tap changer according to claim 1 wherein: the first mounting block (11) and the second mounting block (16) are symmetrically arranged at the bottom of the moving plate (9), and the first mounting block (11) and the second mounting block (16) are both arranged in a hollow mode.
5. A geared vacuum on-load tap changer according to claim 1 wherein: one side of the movable plate (9) is provided with a side clamping groove (10), and the side clamping groove (10) is in contact clamping connection with the metal plate (19).
6. A geared vacuum on-load tap changer according to claim 1 wherein: the first contact plate (13) and the second contact plate (18) are arranged at the same inclination angle, and the first contact plate (13) and the second contact plate (18) are arranged at the same inclination angle.
7. A geared vacuum on-load tap changer according to claim 1 wherein: the first vacuum switch (12) and the second vacuum switch (17) are connected with the moving plate (9), the first contact plate (13) and the second contact plate (18) through connecting lines, and the first vacuum switch (12) and the second vacuum switch (17) are clamped and arranged inside the first mounting block (11) and the second mounting block (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021298186.0U CN212161619U (en) | 2020-07-06 | 2020-07-06 | Transmission vacuum on-load tap-changer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021298186.0U CN212161619U (en) | 2020-07-06 | 2020-07-06 | Transmission vacuum on-load tap-changer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212161619U true CN212161619U (en) | 2020-12-15 |
Family
ID=73699714
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021298186.0U Expired - Fee Related CN212161619U (en) | 2020-07-06 | 2020-07-06 | Transmission vacuum on-load tap-changer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212161619U (en) |
-
2020
- 2020-07-06 CN CN202021298186.0U patent/CN212161619U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20201215 Termination date: 20210706 |