CN112003365A - Bypass type dual-power automatic transfer switch - Google Patents

Bypass type dual-power automatic transfer switch Download PDF

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Publication number
CN112003365A
CN112003365A CN202010835296.4A CN202010835296A CN112003365A CN 112003365 A CN112003365 A CN 112003365A CN 202010835296 A CN202010835296 A CN 202010835296A CN 112003365 A CN112003365 A CN 112003365A
Authority
CN
China
Prior art keywords
driving shaft
limiting rod
side plate
limiting block
transfer switch
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
CN202010835296.4A
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Chinese (zh)
Inventor
黄浙勇
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Suzhou Pheteng Electrical Appliance Co ltd
Original Assignee
Suzhou Pheteng Electrical Appliance Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Suzhou Pheteng Electrical Appliance Co ltd filed Critical Suzhou Pheteng Electrical Appliance Co ltd
Priority to CN202010835296.4A priority Critical patent/CN112003365A/en
Publication of CN112003365A publication Critical patent/CN112003365A/en
Withdrawn legal-status Critical Current

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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
    • H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
    • H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
    • 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
    • H01H9/20—Interlocking, locking, or latching mechanisms
    • H01H9/26—Interlocking, locking, or latching mechanisms for interlocking two or more switches
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
    • Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
    • Y04S20/20—End-user application control systems

Abstract

The invention discloses a bypass type dual-power automatic transfer switch, which comprises a drawing frame, a main transfer switch, a bypass transfer switch, a first chassis vehicle and a second chassis vehicle, wherein the main transfer switch, the bypass transfer switch, the first chassis vehicle and the second chassis vehicle are arranged in the drawing frame; the drawing frame comprises a side plate, and an interlocking device positioned between the main change-over switch and the bypass change-over switch is arranged on the side plate. The bypass type dual-power automatic transfer switch is reasonable in structure, and can effectively avoid short circuit between two power supplies due to human factors or system faults by arranging the interlocking device, so that the use safety is improved.

Description

Bypass type dual-power automatic transfer switch
Technical Field
The invention relates to a bypass type dual-power automatic transfer switch.
Background
A dual power Transfer Switch (TSE) is used for switching two power supplies to ensure that important loads are continuously supplied with power. The bypass type of TSE is used for dual power transfer for particularly important loads so that power continues to be supplied to the load through the bypass switch during TSE service. Mechanical interlocks are an important functional mechanism of a TSE and are intended to prevent the simultaneous connection of two power sources to which the TSE is connected from causing a short circuit between the two power sources. In a bypass-type dual power transfer switch, i.e., between the main transfer switch and the bypass transfer switch, a mechanical interlock is also required that allows the bypass switch to only switch on one of the power sources, e.g., the normal power source, and not the other power source, e.g., the backup power source, when the TSE switches on the normal power source. Similarly, when the bypass switch is connected with a common power supply, the TSE cannot be connected with a standby power supply when in operation, so that short circuit between the two power supplies cannot be caused by wrong operation in the using process of the equipment. However, the interlock device for the bypass type dual power automatic transfer switch in the prior art has a complex structure and low reliability.
Disclosure of Invention
The invention aims to provide a bypass type dual-power automatic transfer switch which is reasonable in structure, and can effectively avoid short circuit between two power supplies due to human factors or system faults by arranging an interlocking device, so that the use safety is improved.
In order to achieve the purpose, the technical scheme of the invention is to design a bypass type dual-power automatic transfer switch, which comprises a drawing frame, and a main transfer switch, a bypass transfer switch, a first chassis truck and a second chassis truck which are arranged in the drawing frame, wherein the rear end of the drawing frame is provided with a base, the base is provided with a wiring bar, the main transfer switch is positioned above the bypass transfer switch, the main transfer switch and the bypass transfer switch can be connected with or separated from the wiring bar, the first chassis truck is used for bearing the main transfer switch, and the second chassis truck is used for bearing the bypass transfer switch;
the drawing frame comprises a side plate, and an interlocking device positioned between the main change-over switch and the bypass change-over switch is arranged on the side plate;
the main change-over switch is provided with a first driving shaft, the first driving shaft is used for driving a common power supply to be switched on or switched off, and a first limiting block is arranged at the end part, close to the side plate, of the first driving shaft;
the main change-over switch is provided with a second driving shaft, the second driving shaft is used for driving the standby power supply to be switched on or switched off, and a second limiting block is arranged at the end part, close to the side plate, of the second driving shaft;
the bypass change-over switch is provided with a third driving shaft, the third driving shaft is used for driving a common power supply to be switched on or switched off, and a third limiting block is arranged at the end part of the third driving shaft close to the side plate;
the bypass change-over switch is provided with a fourth driving shaft, the fourth driving shaft is used for driving the standby power supply to be switched on or switched off, and a fourth limiting block is arranged at the end part, close to the side plate, of the fourth driving shaft;
the first driving shaft, the second driving shaft, the third driving shaft and the fourth driving shaft are sequentially arranged from top to bottom, the axes of the first driving shaft, the second driving shaft, the third driving shaft and the fourth driving shaft are positioned on the same plane, the closing driving direction of the first driving shaft is opposite to the closing driving direction of the fourth driving shaft, and the closing driving direction of the second driving shaft is opposite to the closing driving direction of the third driving shaft;
the interlocking device comprises a first limiting rod and a second limiting rod, a first rotating shaft is arranged in the middle of the first limiting rod, the first limiting rod is rotationally connected with the side plate through a first rotating shaft, the vertical distances from the first limiting rod, the first limiting block and the fourth limiting block to the side plate are equal, the two ends of the first limiting rod are respectively positioned at the outer sides of the first limiting block and the fourth limiting block, the two ends of the first limiting rod are respectively abutted against the first limiting block and the fourth limiting block, the middle position of the second limiting rod is provided with a second rotating shaft, the second limiting rod is rotatably connected with the side plate through a second rotating shaft, the vertical distances from the second limiting rod, the second limiting block and the third limiting block to the side plate are equal, the two ends of the second limiting rod are respectively located at the outer sides of the second limiting block and the third limiting block, and the two ends of the second limiting rod are respectively abutted to the second limiting block and the third limiting block.
Preferably, the vertical distance from the second limiting rod to the side plate is greater than the vertical distance from the first limiting rod to the side plate.
Preferably, a support is arranged between the second driving shaft and the third driving shaft, the support is fixed on the side plate, and an opening for the first limiting rod and the second limiting rod to penetrate through is formed in the support.
Preferably, the opening is provided with a first clamping groove corresponding to the first limiting rod.
Preferably, the opening is provided with a second clamping groove corresponding to the second limiting rod.
The invention has the advantages and beneficial effects that: the bypass type dual-power automatic transfer switch is reasonable in structure, and can effectively avoid short circuit between two power supplies due to human factors or system faults by arranging the interlocking device, so that the use safety is improved.
When a common power supply is used, a first driving shaft of the main change-over switch is positioned at a closing station after rotating for a certain angle along the anticlockwise direction, and the common power supply supplies power at the moment; at first drive shaft pivoted in-process, will drive first stopper and rotate and contact with first gag lever post to promote first gag lever post and rotate, until first gag lever post rotate to with first draw-in groove joint when, the both ends of first gag lever post respectively with first stopper and fourth stopper butt, bypass change over switch's fourth drive shaft quilt lock is at the separating brake station this moment, consequently fourth drive shaft can't rotate and make stand-by power supply combined floodgate along the clockwise.
When the standby power supply is used, the second driving shaft of the main change-over switch is positioned at a closing station after rotating for a certain angle along the clockwise direction, and the standby power supply supplies power at the moment; at second drive shaft pivoted in-process, will drive the second stopper and rotate and contact with the second gag lever post to promote the second gag lever post and rotate, when the second gag lever post rotates to with second draw-in groove joint, the both ends of second gag lever post respectively with second stopper and third stopper butt, bypass change over switch's third drive shaft this moment is locked at the separating brake station, therefore the third drive shaft can't rotate and make common power supply combined floodgate along anticlockwise.
In addition, the first chassis truck and the second chassis truck are arranged in the drawer frame, and the main change-over switch and the bypass change-over switch are respectively arranged on the first chassis truck and the second chassis truck, so that the main change-over switch and the bypass change-over switch can be pulled out of the drawer frame through the first chassis truck and the second chassis truck, and the main change-over switch and the bypass change-over switch can be overhauled.
Drawings
FIG. 1 is a schematic of the present invention.
Fig. 2 is a schematic view of an interlock device according to the present invention.
Fig. 3 is a schematic view of a stent according to the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
The technical scheme of the specific implementation of the invention is as follows:
as shown in fig. 1, 2 and 3, a bypass type dual-power automatic transfer switch includes a rack 1, and a main transfer switch 2, a bypass transfer switch 3, a first chassis 4 and a second chassis 5 which are arranged in the rack 1, wherein a base 6 is arranged at the rear end of the rack 1, a wiring bar is arranged on the base 6, the main transfer switch 2 is located above the bypass transfer switch 3, and both the main transfer switch 2 and the bypass transfer switch 3 can be connected with or separated from the wiring bar, the first chassis 4 is used for bearing the main transfer switch 2, and the second chassis 5 is used for bearing the bypass transfer switch 3;
the drawing frame 1 comprises a side plate 7, and an interlocking device positioned between the main change-over switch 2 and the bypass change-over switch 3 is arranged on the side plate 7;
the main change-over switch 2 is provided with a first driving shaft 8, the first driving shaft 8 is used for driving a common power supply to be switched on or switched off, and a first limiting block 9 is arranged at the end part, close to the side plate 7, of the first driving shaft 8;
the main change-over switch 2 is provided with a second driving shaft 10, the second driving shaft 10 is used for driving the standby power supply to be switched on or switched off, and a second limiting block 11 is arranged at the end part, close to the side plate 7, of the second driving shaft 10;
the bypass change-over switch 3 is provided with a third driving shaft 12, the third driving shaft 12 is used for driving a common power supply to be switched on or switched off, and a third limiting block 13 is arranged at the end part of the third driving shaft 12 close to the side plate 7;
the bypass change-over switch is provided with a fourth driving shaft 14, the fourth driving shaft 14 is used for driving the standby power supply to be switched on or switched off, and a fourth limiting block 15 is arranged at the end part, close to the side plate 7, of the fourth driving shaft 14;
the first driving shaft 8, the second driving shaft 10, the third driving shaft 12 and the fourth driving shaft 14 are sequentially arranged from top to bottom, the axes of the first driving shaft 8, the second driving shaft 10, the third driving shaft 12 and the fourth driving shaft 14 are located on the same plane, the closing driving direction of the first driving shaft 8 is opposite to the closing driving direction of the fourth driving shaft 14, and the closing driving direction of the second driving shaft 10 is opposite to the closing driving direction of the third driving shaft 12;
the interlocking device comprises a first limiting rod 16 and a second limiting rod 17, a first rotating shaft is arranged in the middle of the first limiting rod 16, the first limiting rod 16 is rotatably connected with the side plate 7 through the first rotating shaft, the vertical distances from the first limiting rod 16, the first limiting block 9, the fourth limiting block 15 to the side plate 7 are equal, two ends of the first limiting rod 16 are respectively positioned at the outer sides of the first limiting block 9 and the fourth limiting block 15, two ends of the first limiting rod 16 are used for being respectively abutted against the first limiting block 9 and the fourth limiting block 15, a second rotating shaft is arranged in the middle of the second limiting rod 17, the second limiting rod 17 is rotatably connected with the side plate 7 through a second rotating shaft, the vertical distances from the second limiting rod 17, the second limiting block 11 and the third limiting block 13 to the side plate 7 are equal, two ends of the second limiting rod 17 are respectively positioned at the outer sides of the second limiting block 11 and the third limiting block 13, and the two ends of the second limiting rod 17 are used for being respectively abutted against the second limiting block 11 and the third limiting block 13.
The vertical distance from the second limiting rod 17 to the side plate 7 is greater than the vertical distance from the first limiting rod 16 to the side plate 7.
A bracket 18 is provided between the second drive shaft 10 and the third drive shaft 12, the bracket 18 is fixed to the side plate 7, and an opening 19 through which the first stopper rod 16 and the second stopper rod 17 pass is provided in the bracket 18.
The opening 19 is provided with a first engaging groove 20 corresponding to the first limiting rod 16.
The opening 19 is provided with a second engaging groove 21 corresponding to the second limiting rod 17.
The invention has the advantages and beneficial effects that: the bypass type dual-power automatic transfer switch is reasonable in structure, and can effectively avoid short circuit between two power supplies due to human factors or system faults by arranging the interlocking device, so that the use safety is improved.
When a common power supply is used, the first driving shaft 8 of the main change-over switch 2 rotates for a certain angle along the anticlockwise direction and then is positioned at a closing station, and the common power supply supplies power at the moment; at 8 pivoted in-processes of first drive shaft, will drive first stopper 9 and rotate and contact with first gag lever post 16 to promote first gag lever post 16 and rotate, until first gag lever post 16 rotate to with first draw-in groove 20 joint when, the both ends of first gag lever post 16 respectively with first stopper 9 and 15 butts of fourth stopper, bypass change over switch 3's fourth drive shaft 14 quilt is locked at the separating brake station this moment, consequently fourth drive shaft 14 can't rotate and make stand-by power supply combined floodgate along the clockwise.
When the standby power supply is used, the second driving shaft 10 of the main change-over switch 2 rotates clockwise for a certain angle and then is positioned at a closing station, and the standby power supply supplies power at the moment; at second drive shaft 10 pivoted in-process, will drive second stopper 11 and rotate and contact with second gag lever post 17 to promote second gag lever post 17 and rotate, when second gag lever post 17 rotates to 21 joints with the second draw-in groove, the both ends of second gag lever post 17 respectively with second stopper 11 and third stopper 13 butt, bypass change over switch 3's third drive shaft 12 is locked at the separating brake station this moment, consequently third drive shaft 12 can't rotate and make common power supply combined floodgate along anticlockwise.
In addition, by providing the first chassis 4 and the second chassis 5 in the drawer frame 1 and installing the main change-over switch 2 and the bypass change-over switch 3 on the first chassis 4 and the second chassis 5, respectively, the main change-over switch 2 and the bypass change-over switch 3 can be drawn out from the drawer frame 1 by the first chassis 4 and the second chassis 5 so as to perform maintenance on the main change-over switch 2 and the bypass change-over switch 3.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the technical principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims (5)

1. A bypass type dual-power automatic transfer switch is characterized by comprising a drawing frame, a main transfer switch, a bypass transfer switch, a first chassis truck and a second chassis truck, wherein the main transfer switch, the bypass transfer switch, the first chassis truck and the second chassis truck are arranged in the drawing frame;
the drawing frame comprises a side plate, and an interlocking device positioned between the main change-over switch and the bypass change-over switch is arranged on the side plate;
the main change-over switch is provided with a first driving shaft, the first driving shaft is used for driving a common power supply to be switched on or switched off, and a first limiting block is arranged at the end part, close to the side plate, of the first driving shaft;
the main change-over switch is provided with a second driving shaft, the second driving shaft is used for driving the standby power supply to be switched on or switched off, and a second limiting block is arranged at the end part, close to the side plate, of the second driving shaft;
the bypass change-over switch is provided with a third driving shaft, the third driving shaft is used for driving a common power supply to be switched on or switched off, and a third limiting block is arranged at the end part of the third driving shaft close to the side plate;
the bypass change-over switch is provided with a fourth driving shaft, the fourth driving shaft is used for driving the standby power supply to be switched on or switched off, and a fourth limiting block is arranged at the end part, close to the side plate, of the fourth driving shaft;
the first driving shaft, the second driving shaft, the third driving shaft and the fourth driving shaft are sequentially arranged from top to bottom, the axes of the first driving shaft, the second driving shaft, the third driving shaft and the fourth driving shaft are positioned on the same plane, the closing driving direction of the first driving shaft is opposite to the closing driving direction of the fourth driving shaft, and the closing driving direction of the second driving shaft is opposite to the closing driving direction of the third driving shaft;
the interlocking device comprises a first limiting rod and a second limiting rod, a first rotating shaft is arranged in the middle of the first limiting rod, the first limiting rod is rotationally connected with the side plate through a first rotating shaft, the vertical distances from the first limiting rod, the first limiting block and the fourth limiting block to the side plate are equal, the two ends of the first limiting rod are respectively positioned at the outer sides of the first limiting block and the fourth limiting block, the two ends of the first limiting rod are respectively abutted against the first limiting block and the fourth limiting block, the middle position of the second limiting rod is provided with a second rotating shaft, the second limiting rod is rotatably connected with the side plate through a second rotating shaft, the vertical distances from the second limiting rod, the second limiting block and the third limiting block to the side plate are equal, the two ends of the second limiting rod are respectively located at the outer sides of the second limiting block and the third limiting block, and the two ends of the second limiting rod are respectively abutted to the second limiting block and the third limiting block.
2. The dual power automatic transfer switch of claim 1, wherein the vertical distance from the second limiting rod to the side plate is greater than the vertical distance from the first limiting rod to the side plate.
3. The dual-power automatic transfer switch of claim 2, wherein a bracket is disposed between the second driving shaft and the third driving shaft, the bracket is fixed on the side plate, and the bracket is provided with an opening for the first limiting rod and the second limiting rod to pass through.
4. The bypass type dual power automatic transfer switch of claim 3, wherein the opening is provided with a first slot corresponding to the first limiting rod.
5. The bypass type dual power automatic transfer switch according to claim 4, wherein the opening is provided with a second slot corresponding to the second limiting rod.
CN202010835296.4A 2020-08-19 2020-08-19 Bypass type dual-power automatic transfer switch Withdrawn CN112003365A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010835296.4A CN112003365A (en) 2020-08-19 2020-08-19 Bypass type dual-power automatic transfer switch

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010835296.4A CN112003365A (en) 2020-08-19 2020-08-19 Bypass type dual-power automatic transfer switch

Publications (1)

Publication Number Publication Date
CN112003365A true CN112003365A (en) 2020-11-27

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN202010835296.4A Withdrawn CN112003365A (en) 2020-08-19 2020-08-19 Bypass type dual-power automatic transfer switch

Country Status (1)

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CN (1) CN112003365A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114243882A (en) * 2021-12-14 2022-03-25 天水师范学院 Electrical interlocking control system and control method for double-bypass change-over switch electrical appliance
CN114388283A (en) * 2022-01-25 2022-04-22 常熟开关制造有限公司(原常熟开关厂） Bypass type dual-power automatic transfer switch

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114243882A (en) * 2021-12-14 2022-03-25 天水师范学院 Electrical interlocking control system and control method for double-bypass change-over switch electrical appliance
CN114388283A (en) * 2022-01-25 2022-04-22 常熟开关制造有限公司(原常熟开关厂） Bypass type dual-power automatic transfer switch
CN114388283B (en) * 2022-01-25 2023-11-17 常熟开关制造有限公司(原常熟开关厂） Bypass type dual-power automatic transfer switch

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Application publication date: 20201127