CN104426234A - Dual-power source mutual-throw self-reset automatic-switching device - Google Patents
Dual-power source mutual-throw self-reset automatic-switching device Download PDFInfo
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- CN104426234A CN104426234A CN201310374998.7A CN201310374998A CN104426234A CN 104426234 A CN104426234 A CN 104426234A CN 201310374998 A CN201310374998 A CN 201310374998A CN 104426234 A CN104426234 A CN 104426234A
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- moving contact
- power source
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Abstract
The invention discloses a dual-power source mutual-throw self-reset automatic-switching device. The dual-power source mutual-throw self-reset automatic-switching device comprises a rack; a circuit breaker and a moving contact which is connected with the circuit breaker are fixed to the lower part of the rack; the upper side and the lower side of the moving contact are respectively provided with a main-power source fixed contact and a standby-power source fixed contact; the moving contact is a V-shaped moving contact; the upper arm of the V-shaped moving contact is connected with one end of a connecting rod; a motor and a speed reducer are fixed to the upper part of the rack; a rotating rod is fixed to the output end of the speed reducer; one end of the connecting rod is connected with the rotating rod; and the upper part of the connecting rod is provided with a limiting switch. According to the dual-power source mutual-throw self-reset automatic-switching device of the invention, the moving contact is of a V-shaped structure, thereby enabling main and standby power sources to have an apparent cut-off point without additionally arranging electrical and mechanical latches, effectively preventing reverse power feeding, and enabling a operation mode to be safe and reliable. The device can automatically switch to a low-voltage load of 3200A or below according to a preset program, and the switching process needs 7 to 10 seconds, thereby achieving the dual-power source mutual-throw self-reset automatic switching. During the maintenance of a low-voltage side, a double-throw switch can be manually operate to a maintenance position or a circuit breaker body can be switched off, thereby guaranteeing the safety of maintenance work.
Description
Technical field
The present invention relates to a kind of power control, the duplicate supply that particularly a kind of electricity consumer having duplicate supply uses throws automatic switching control equipment mutually.
Background technology
In the distribution line of prior art, in order to ensure power supply quality and reduce frequency of power cut, usually double voltage control is all adopted to power, simple dual power supply adopts manual switching, namely when main power source occurs to have a power failure, manual being switched to by disconnecting link on stand-by power supply continues power supply, this mode there will be certain interruption duration in handoff procedure, some important places such as hospital operating room or such as medical examination apparatus midway power failure of some visual plant can have an impact to power consumer, if particularly can cause the loss or major accident that are difficult to make up.Therefore duplicate supply throws runback automatic switching control equipment mutually with adopting per family mostly at present.Chinese patent 200510007152 disclosed " low-voltage dual power supply switching box ", it forms with a double-throw switch be connected with two-way power supply and circuit breaker the main circuit that duplicate supply switches, double-throw switch and circuit breaker Ge Youyige mechanical toggle mechanism, there is interlocked relationship between two toggle mechanisms, under ensureing the condition that double-throw switch disconnects at circuit breaker, carry out the switching of two-way power supply.
Summary of the invention
Task of the present invention is for above-mentioned technology Problems existing, designs a kind of duplicate supply and throws runback automatic switching control equipment mutually.Solve the active and standby power supply of existing mutual throwing self-complex switch and there is no obvious cut-off point, separately must install electric, mechanical latching equipment, and anti-power transmission situation may be occurred, form the deficiencies such as potential safety hazard.
A kind of duplicate supply throws runback automatic switching control equipment mutually, comprise frame, circuit breaker is fixed with in frame lower, the moving contact be connected with circuit breaker, the both sides up and down of described moving contact are respectively arranged with main power source fixed contact and stand-by power supply fixed contact, it is characterized in that described moving contact is V-shape moving contact.
Described duplicate supply throws runback automatic switching control equipment mutually, it is characterized in that the described upper arm of V-shape moving contact is connected with one end of connecting rod, the decelerator being fixed with motor on the top of frame and being connected with motor, bull stick is fixed with at the output of decelerator, the other end of described connecting rod is connected with bull stick, and connecting rod top is provided with limit switch.
Described duplicate supply throws runback automatic switching control equipment mutually, it is characterized in that there is reduction gearing between motor and decelerator, and two limits of described V-shape moving contact are orthogonal right-angle structure.
Adopt dual power supply automatic switching device of the present invention, moving contact employing V-shape structure, makes active and standby power supply have obvious cut-off point, does not need separately to install electric, mechanical latching, effectively prevents anti-power transmission, and operational mode safely, reliably.It can to automatically switch 3200A and following low-voltage load by pre-set programs, and handoff procedure is about 7-10 second, can realize duplicate supply and throw runback mutually and automatically switch, and duplicate supply runs and has obvious cut-off point, switching that double-throw knife switch is zero load with disconnection.Extremely can overhaul position or pull open breaker body by manual operation double-throw switch when low-pressure side is overhauled, guaranteeing that upkeep operation carries out safely.
Accompanying drawing explanation
Fig. 1 is switching device shifter structural representation;
Fig. 2 is the right side view of Fig. 1;
Fig. 3 is the left side view of Fig. 1.
In figure, reverse motors under 1-; 2-gear; 3-decelerator; 4-limit switch; 5-connecting rod; 6-main power source fixed contact; 7-moving contact; 8-stand-by power supply fixed contact; 9-busbar; 10-end of incoming cables; 11-breaker body; 12-leading-out terminal; 13-load side; 14-fixed frame; 15-bull stick.
Embodiment
That duplicate supply of the present invention throws runback automatic switching control equipment structural representation mutually shown in Fig. 1-3, its essence is the internal structure of a switch cubicle, shown in figure, bottom is breaker portion, comprise breaker body 11, what be connected with breaker body has busbar 9 and end of incoming cables 10, has leading-out terminal 12 and load side 13 in circuit breaker bottom.Figure middle and upper part is electrical source exchange part, comprises a fixed mount 14, and the front of this fixed mount is provided with three-phase V-shaped moving contact 7, and in illustrated embodiment, two limits of this V-shape structure are orthogonal.Have main power source fixed contact 6 on moving contact top, bottom is stand-by power supply fixed contact 8.The lower cusp portion of V-shaped moving contact and fixed mount 14 are hinged, and pin joint is connected with the busbar 9 at the fixed mount back side.Also be fixed with motor 1 respectively at the back side of fixed mount, this motor is clockwise and anticlockwise motor, and the input of decelerator 3 is connected with motor shaft by a gear 2.The output shaft of decelerator is fixed with bull stick 15, the lower end of bull stick and one end of connecting rod 5 are hinged, and the other end of connecting rod 5 and a support arm of V-shaped moving contact are hinged.Have in illustrated embodiment and a cross bar has three tie points be hinged with the upper arm of three-phase moving contact or underarm respectively, connecting rod 5 pushes away or draws this cross bar that V-shaped moving contact can be made to be connected with main power source or stand-by power supply, realizes switching.The switching of above-mentioned power supply realizes active and standby power supply by setup program and throws runback automatic switchover mutually.Carry out automatic control by control device, the present invention only provides its hardware components.
During work, if when main power source and stand-by power supply are simultaneously charged, take main power source as load power; If main power source has a power failure, when stand-by power supply has an electricity, circuit breaker disconnection-moving contact (double-throw switch) switches to stand-by power supply-breaker closing, and stand-by power supply becomes load power.If in stand-by power supply running, during main power source incoming call, circuit breaker disconnects---moving contact (double-throw switch) switches to main power source--breaker closing, and main power source is still powered as load power.During interruption maintenance, manually disconnecting main power source and stand-by power supply control switch--circuit breaker disconnects-makes moving contact (double-throw knife switch) and switches to maintenance position, and pull-out breaker body overhauls.If in moving contact (double-throw knife switch) course of action, main power source and stand-by power supply all have a power failure, and moving contact stops action or manual operation to overhauling position because of dead electricity, when main power source or stand-by power supply incoming call, press main power source or stand-by power supply button, switched to the side of incoming call.If main power source and stand-by power supply are sent a telegram here simultaneously, then manual operation makes main power source load operation, manually presses stand-by power supply button then invalid.
Claims (3)
1. a duplicate supply throws runback automatic switching control equipment mutually, comprise frame (14), circuit breaker (11) is fixed with in frame lower, the moving contact (7) be connected with circuit breaker, the both sides up and down of described moving contact are respectively arranged with main power source fixed contact (6) and stand-by power supply fixed contact (8), it is characterized in that described moving contact (7) is V-shaped moving contact.
2. duplicate supply according to claim 1 throws runback automatic switching control equipment mutually, it is characterized in that the upper arm of described V-shaped moving contact is connected with one end of connecting rod (5), the decelerator (3) being fixed with motor (1) on the top of frame and being connected with motor, bull stick (15) is fixed with at the output of decelerator, the other end of described connecting rod (5) is connected with bull stick, and connecting rod (5) top is provided with limit switch (4).
3. duplicate supply according to claim 1 throws runback automatic switching control equipment mutually, it is characterized in that there is reduction gearing between motor and decelerator, and two limits of described V-shape moving contact are orthogonal right-angle structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310374998.7A CN104426234A (en) | 2013-08-26 | 2013-08-26 | Dual-power source mutual-throw self-reset automatic-switching device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310374998.7A CN104426234A (en) | 2013-08-26 | 2013-08-26 | Dual-power source mutual-throw self-reset automatic-switching device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104426234A true CN104426234A (en) | 2015-03-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310374998.7A Pending CN104426234A (en) | 2013-08-26 | 2013-08-26 | Dual-power source mutual-throw self-reset automatic-switching device |
Country Status (1)
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| CN (1) | CN104426234A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107359060A (en) * | 2017-09-07 | 2017-11-17 | 西安阿普顿电力技术有限公司 | A kind of double power supply automatic transfer switch |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2133043Y (en) * | 1992-09-05 | 1993-05-12 | 湘潭市高压电器成套厂 | Double-throw high-voltage, isolation suitch |
| CN101056009A (en) * | 2007-03-11 | 2007-10-17 | 郑文秀 | Highly intelligent dual-power automatic switching device |
| CN101419871A (en) * | 2008-11-19 | 2009-04-29 | 温州大学 | Intelligent duplicate power supply conversion switch |
| CN101504894A (en) * | 2008-04-03 | 2009-08-12 | 黄勤飞 | Intelligent high voltage duplicate power source converting switch |
| 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 |
-
2013
- 2013-08-26 CN CN201310374998.7A patent/CN104426234A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2133043Y (en) * | 1992-09-05 | 1993-05-12 | 湘潭市高压电器成套厂 | Double-throw high-voltage, isolation suitch |
| CN101056009A (en) * | 2007-03-11 | 2007-10-17 | 郑文秀 | Highly intelligent dual-power automatic switching device |
| CN101504894A (en) * | 2008-04-03 | 2009-08-12 | 黄勤飞 | Intelligent high voltage duplicate power source converting switch |
| CN101419871A (en) * | 2008-11-19 | 2009-04-29 | 温州大学 | Intelligent duplicate power supply conversion switch |
| 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 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107359060A (en) * | 2017-09-07 | 2017-11-17 | 西安阿普顿电力技术有限公司 | A kind of double power supply automatic transfer switch |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150318 |