CN108461321B - Dual-power switching protection device - Google Patents
Dual-power switching protection device Download PDFInfo
- Publication number
- CN108461321B CN108461321B CN201810258905.7A CN201810258905A CN108461321B CN 108461321 B CN108461321 B CN 108461321B CN 201810258905 A CN201810258905 A CN 201810258905A CN 108461321 B CN108461321 B CN 108461321B
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- China
- Prior art keywords
- contact piece
- static contact
- movable contact
- standby
- main
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/0005—Tap change devices
- H01H9/0016—Contact arrangements for tap changers
Abstract
A dual power supply switching protection device belongs to the technical field of power supply protection. Including the protective housing, the movable contact piece, the controller with drive actuating cylinder, the inside cavity that is equipped with of protective housing, the protection end cover is installed to the protective housing cavity, the inside cavity of protective housing is equipped with the space bar, the space bar is split into the working chamber with the cavity, top-down is provided with main static contact respectively in the working chamber, output static contact and reserve static contact, main static contact, output static contact and reserve static contact are two settings and the centre is equipped with the clearance, the movable contact slides and sets up in the clearance, the movable contact top is equipped with reserve movable contact piece, be equipped with sliding channel on the space bar, reserve movable contact cooperation is on protective housing and space bar, limiting plate one side is connected with driving actuating cylinder, the controller is the electricity respectively and is connected and drives actuating cylinder, main static contact, output static contact and. The double-power-supply switching device is simple in structure and low in cost, and greatly reduces dust accumulation and reduces the possibility of short circuit of the device while normal operation of double-power-supply switching is not influenced.
Description
Technical Field
The invention relates to a dual-power switching protection device, and belongs to the technical field of power protection.
Background
Along with the improvement of the requirement on power supply reliability, anti-accident measures are improved day by day, more and more advanced devices are applied to a power supply system, wherein a dual-power-supply change-over switch is widely applied to the power supply system and is widely applied to important places such as high-rise buildings, hospitals, airports and the like where power failure is not allowed. However, in the prior art, due to the processing technology, the surface of the circuit contact is easy to generate dust before being contacted, and when the dust is easy to float in an external ventilation environment, the possibility of generating short circuit danger on the circuit is generated, and the actual production work is greatly influenced.
In view of the above-mentioned prior art, the applicant of the present invention has made a lot of repeated and useful researches, and the final products have achieved effective results and have formed the technical solutions to be described below.
Disclosure of Invention
Aiming at the defects, the invention provides the dual-power switching protection device which is simple in structure and low in cost, greatly reduces dust accumulation, reduces the possibility of short circuit of the device and improves the practicability while the normal operation of dual-power switching is not influenced.
The invention is realized by the following technical scheme: a double-power switching protection device comprises a protection shell, a movable contact piece, a controller and a driving cylinder, wherein a cavity is arranged in the protection shell, the cavity extends to one side end face of the protection shell to form an opening, a protection end cover is installed at the opening of the protection shell, a partition plate is arranged in the cavity in the protection shell, the partition plate divides the cavity into three mutually independent working cavities, a main static contact piece, an output static contact piece and a standby static contact piece are respectively arranged in the working cavities from top to bottom, the main static contact piece, the output static contact piece and the standby static contact piece are respectively arranged in two pieces, gaps are arranged between the main static contact piece and the output static contact piece in a sliding mode, a standby movable contact piece is arranged at the top of the movable contact piece, a sliding channel is arranged on the partition plate corresponding to the sliding direction of the standby movable contact piece, and the standby movable contact piece is matched on the protection shell and the partition plate through a working sliding block arranged on the side portion, one side of the limiting plate is connected with a driving cylinder, and the controller is respectively and electrically connected with the driving cylinder, the main static contact, the output static contact and the standby static contact through control lines.
Further, the opening side be equipped with location slider respectively, the side bottom is equipped with the installation slider respectively, opening top edge still be equipped with the cooperation groove, the cooperation groove in be equipped with a plurality of installation screw holes, the protection end cover install on location slider and installation slider through the installation spout that one side set up, protection end cover top install in the cooperation groove and through the mounting bolt at top fix in the installation screw hole.
Furthermore, a limiting plate is arranged at the top of the standby movable contact piece.
Furthermore, a main entrance slot is arranged below the main static contact, and a standby entrance slot is arranged at the upper part of the standby static contact.
Furthermore, the bottom of the movable contact spring is provided with an anti-abrasion round bulge.
Furthermore, a monitoring device is arranged in the protective shell and connected with a controller, and the controller is connected with a display device.
The invention has the beneficial effects that:
the device has simple structure and low cost, greatly reduces dust accumulation, reduces the possibility of short circuit of the device and improves the practicability while not influencing the normal operation of the dual power supply switching; each working cavity forms an independent relative closed space, so that the insulating property is improved, the possibility of short circuit of a circuit is reduced, the safety is improved, and dust is prevented; the main static contact, the output static contact and the standby static contact are arranged in two pieces, so that when the movable contact slides in the gap, the oxide layer can be scraped.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
fig. 2 is a schematic view of the internal structure of the object of the present invention.
In the figure, the protection casing 1, the partition plate 11, the sliding channel 111, the working cavity 12, the heat dissipation hole 13, the positioning slider 14, the mounting slider 15, the mating groove 16, the mounting threaded hole 161, the main static contact 2, the main inlet groove 21, the output static contact 3, the backup static contact 4, the backup inlet groove 41, the movable contact 5, the anti-abrasion circular protrusion 51, the backup movable contact 52, the stopper plate 521, the working slider 522, the controller 6, the control circuit 61, the driving cylinder 7, the protection end cover 8, the mounting chute 81, and the mounting bolt 9.
Detailed Description
Example 1
The following is a description of example 1.
As shown in fig. 1 to 2, a dual power supply switching protection device includes a protection housing 1, a partition 11, a sliding channel 111, a working chamber 12, a heat dissipation hole 13, a positioning slider 14, an installation slider 15, a mating groove 16, an installation screw hole 161, a main static contact 2, a main inlet groove 21, an output static contact 3, a standby static contact 4, a standby inlet groove 41, a movable contact 5, an anti-wear convex 51, a standby movable contact 52, a limiting plate 521, a working slider 522, a controller 6, a control circuit 61, a driving cylinder 7, a protection end cover 8, an installation chute 81, and an installation bolt 9, wherein a cavity is arranged inside the protection housing 1, the cavity extends to one side end face of the protection housing 1 to form an opening, the side edges of the opening are respectively provided with the positioning slider 14, the bottom of the side edges are respectively provided with the installation slider 15, the top edge of the opening is also provided with a mating groove 16, the mating groove 16 is provided with a plurality of installation screw, the protective end cover 8 is arranged on the positioning slide block 14 and the mounting slide block 15 through a mounting slide groove 81 arranged on one side, and the top of the protective end cover 8 is arranged in the matching groove 16 and is fixed in the mounting threaded hole 161 through a mounting bolt 9.
The cavity inside the protective shell 1 is provided with a partition plate 11, the partition plate 11 divides the cavity into three mutually independent working chambers 12, a main static contact 2, an output static contact 3 and a standby static contact 4 are respectively arranged in the working chambers 12 from top to bottom to form independent relatively closed spaces, the insulating property is improved, the possibility of line short circuit is reduced, the safety is improved, and simultaneously dust is prevented, the main static contact 2, the output static contact 3 and the standby static contact 4 are all two pieces and are provided with gaps in the middle, a main inlet slot 21 is arranged below the main static contact 2, a standby inlet slot 41 is arranged at the upper part of the standby static contact 4, the movable contact 5 is arranged in the gap between the main static contact 2 and the output static contact 3 in a sliding manner, an anti-abrasion round convex 51 is arranged at the bottom of the movable contact 5, a standby movable contact 52 is arranged at the top, a sliding channel 111 is arranged on the partition plate 11 corresponding to the sliding direction of the standby movable contact 52, the spare moving contact 52 is matched on the protective shell 1 and the spacing plate 11 through a working slide block 522 arranged at the side part, and a limiting plate 521 is also arranged at the top part of the spare moving contact 52.
Limiting plate 521 one side with drive actuating cylinder 7 and be connected, controller 6 through control scheme 61 electricity respectively drive actuating cylinder 7, main static contact 2, output static contact 3 and be equipped with static contact 4, the device simple structure is with low costs, when not influencing dual supply and switching normal function, the laying dust that has significantly reduced has reduced the possibility of device short circuit, has improved the practicality.
Example 2
The following is a description of example 2.
In embodiment 2, the same reference numerals are given to the same structures as those in embodiment 1, and the same descriptions are omitted, and embodiment 2 is improved over embodiment 1 in that a monitoring device is provided in the protective housing 1, the monitoring device is connected to a controller, and a display device is connected to the controller.
When the device is used, the movable contact piece 5 is respectively contacted with the main static contact piece 2 and the output static contact piece 3, when any fault occurs in the main static contact piece 2 and the output static contact piece 3, the controller 6 controls the driving cylinder 7 to push the standby movable contact piece 52, the lower half section of the movable contact piece 5 is contacted with the standby static contact piece 4, the upper half section of the movable contact piece 5 is contacted with the output static contact piece 3, and the standby movable contact piece 52 is contacted with the main static contact piece 2.
It will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in the embodiments described above without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims.
Claims (2)
1. The utility model provides a dual power supply switches protection device which characterized in that: the device comprises a protective shell, a movable contact piece, a controller and a driving cylinder, wherein a cavity is arranged in the protective shell, the cavity extends to one side end face of the protective shell to form an opening, a protective end cover is installed at the opening of the protective shell, a partition plate is arranged in the cavity in the protective shell, the partition plate divides the cavity into three mutually independent working cavities, a main static contact piece, an output static contact piece and a standby static contact piece are respectively arranged in the working cavities from top to bottom, the main static contact piece, the output static contact piece and the standby static contact piece are respectively arranged in two pieces, gaps are arranged in the main static contact piece, the movable contact piece is arranged in the gaps of the main static contact piece and the output static contact piece in a sliding mode, a standby movable contact piece is arranged at the top of the movable contact piece, a sliding channel is arranged on the partition plate corresponding to the sliding direction of the standby movable contact piece, and the standby movable contact piece is matched on, the top of the standby movable contact piece is also provided with a limiting plate, one side of the limiting plate is connected with the driving cylinder, the controller is respectively and electrically connected with the driving cylinder, the main static contact piece, the output static contact piece and the standby static contact piece through control lines, a monitoring device is arranged in the protective shell and connected with the controller, and the controller is connected with a display device; a main inlet groove is arranged below the main static contact piece, and a standby inlet groove is arranged at the upper part of the standby static contact piece; the bottom of the movable contact piece is provided with an anti-abrasion round bulge.
2. The dual power switching protection device as claimed in claim 1, wherein the opening sides are respectively provided with a positioning slider, the bottom of each side is provided with a mounting slider, the top edge of the opening is further provided with a matching groove, the matching groove is provided with a plurality of mounting threaded holes, the protection cover is mounted on the positioning slider and the mounting slider through a mounting sliding groove arranged on one side, and the top of the protection cover is mounted in the matching groove and fixed in the mounting threaded holes through a mounting bolt on the top.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810258905.7A CN108461321B (en) | 2018-03-27 | 2018-03-27 | Dual-power switching protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810258905.7A CN108461321B (en) | 2018-03-27 | 2018-03-27 | Dual-power switching protection device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108461321A CN108461321A (en) | 2018-08-28 |
| CN108461321B true CN108461321B (en) | 2020-10-02 |
Family
ID=63237931
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810258905.7A Expired - Fee Related CN108461321B (en) | 2018-03-27 | 2018-03-27 | Dual-power switching protection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108461321B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111354582B (en) * | 2018-12-24 | 2022-02-15 | 合肥迅达电器有限公司 | Intermediate frequency power supply change-over switch |
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| WO2013087661A1 (en) * | 2011-12-14 | 2013-06-20 | Alstom Technology Ltd | Device for driving a conductive unit of a circuit breaker so as to move the unit at a variable speed |
| CN203466621U (en) * | 2013-08-26 | 2014-03-05 | 寿阳县滨创电气机械科技有限公司 | Dual-power mutual-throw self-reset automatic-switching device |
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| CN206789445U (en) * | 2017-06-20 | 2017-12-22 | 王华银 | A kind of Multi-path synchronous controls electric brake |
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| ES2523279T3 (en) * | 2010-03-01 | 2014-11-24 | Eaton Industries (Netherlands) B.V. | An interruption arrangement for an electrical device |
| JP2012129073A (en) * | 2010-12-15 | 2012-07-05 | Alps Electric Co Ltd | Contact substrate, manufacturing method thereof, and input device using contact substrate |
| CN202711964U (en) * | 2012-05-14 | 2013-01-30 | 平高集团有限公司 | Electrical switch and moving contact used by same |
| JP2016036196A (en) * | 2014-08-01 | 2016-03-17 | 株式会社日立製作所 | Power switch |
| CN206585233U (en) * | 2017-03-07 | 2017-10-24 | 南京千万户电子科技有限责任公司 | A kind of bank monitoring centralized intelligence distribution box |
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2018
- 2018-03-27 CN CN201810258905.7A patent/CN108461321B/en not_active Expired - Fee Related
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202352545U (en) * | 2011-11-24 | 2012-07-25 | 中国西电电气股份有限公司 | Direct-acting type three working position switch |
| WO2013087661A1 (en) * | 2011-12-14 | 2013-06-20 | Alstom Technology Ltd | Device for driving a conductive unit of a circuit breaker so as to move the unit at a variable speed |
| CN203466621U (en) * | 2013-08-26 | 2014-03-05 | 寿阳县滨创电气机械科技有限公司 | Dual-power mutual-throw self-reset automatic-switching device |
| CN203607314U (en) * | 2013-12-06 | 2014-05-21 | 江苏大全长江电器股份有限公司 | Over-position protection device for direct-acting three-position isolating switch |
| CN203596310U (en) * | 2013-12-09 | 2014-05-14 | 北京思威驰电力技术有限公司 | Direct-acting three-position isolating switch |
| CN204102789U (en) * | 2014-09-12 | 2015-01-14 | 宁波耀华电气科技有限责任公司 | Piston type isolating switch |
| CN205723311U (en) * | 2016-06-12 | 2016-11-23 | 江苏大全长江电器股份有限公司 | A kind of direct action type three-station with guiding trestle |
| CN206165277U (en) * | 2016-10-21 | 2017-05-17 | 南阳师范学院 | Cold blue breeding device |
| CN106486317A (en) * | 2016-11-11 | 2017-03-08 | 北京双杰电气股份有限公司 | A kind of tri-station isolating switch |
| CN206789445U (en) * | 2017-06-20 | 2017-12-22 | 王华银 | A kind of Multi-path synchronous controls electric brake |
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| Publication number | Publication date |
|---|---|
| CN108461321A (en) | 2018-08-28 |
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