CN2938529Y - Automatic change-over switch electrical equipment with overcurrent, short-circuit detection function - Google Patents
Automatic change-over switch electrical equipment with overcurrent, short-circuit detection function Download PDFInfo
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- CN2938529Y CN2938529Y CN 200620014346 CN200620014346U CN2938529Y CN 2938529 Y CN2938529 Y CN 2938529Y CN 200620014346 CN200620014346 CN 200620014346 CN 200620014346 U CN200620014346 U CN 200620014346U CN 2938529 Y CN2938529 Y CN 2938529Y
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Abstract
The utility model relates to automatic transfer switching equipment. In order to resolve the problem that the prior automatic double power transfer switching equipments do not have over current and short-circuit detection functions, the utility model provides an automatic transfer switching equipment with over current and short-circuit detection functions, wherein on the basis of the prior automatic transfer switching equipment, a current detection unit is added on the power output terminal. Thus, apart from the electrical voltage detection function, this automatic transfer switching equipment also has the over current and short-circuit detection functions, which can detects the voltage breakdowns occurred in the circuit, the over current and or the short-circuit fault and output the corresponding signals as well. The current detection unit in the utility model can be connected to the switching equipment body, which can also connected to the controller in order to achieve stronger and more perfect features, such as current display, over current and or short-circuit fault alarm, over current and or short-circuit fault trip, fault locking and recording functions.
Description
Technical field
The utility model relates to the power supply automatic transfer switching electric appliance, more particularly, relates to a kind of automatic transfer switching electric appliance with overcurrent, function of short circuit detection.
Background technology
Automatic transfer switching electric appliance of the present utility model mainly is meant double power supply automatic transfer switch electrical equipment, can certainly be three power supplys even more, but following all be that example describes with the duplicate supply.This switch connects two power supply inputs, and selects primary power cource as output automatically, then changes automatically when the primary power cource fault, uses stand-by power supply instead as output.
Structure and operation principle about double power supply automatic transfer switch electrical equipment, all belong to ripe prior art, at application number is in three patents of CN200420042705.1, CN200420015494.2 and CN200420015495.7, discloses the structure to traditional double power supply automatic transfer switching electric appliance, the improvement of principle aspect respectively.
In existing double power supply automatic transfer switch electrical equipment, all be that the input power source voltage is sampled, and carry out fault judgement (for example whether too high or low excessively) according to sample voltage value, if judge the primary power cource fault, then send control signal to automatic transfer switching electric appliance, realize power source conversion by the latter again, change by stand-by power supply and power.
As seen, in the existing double power supply automatic transfer switch electrical equipment, the operating current to the input power supply does not detect and monitors, and can't send alarm signal when situations such as overcurrent, short circuit and takes appropriate measures.
The utility model content
At the above-mentioned defective of prior art, the utility model will solve existing double power supply automatic transfer switch electrical equipment and not have the problem of overcurrent, function of short circuit detection, and a kind of automatic transfer switching electric appliance with overcurrent, function of short circuit detection is provided.
The technical scheme that its technical problem that solves the utility model adopts is: a kind of automatic transfer switching electric appliance with overcurrent, function of short circuit detection is provided, comprise at least two group power input terminals, one group of power output terminal, be used to realize the mechanical switch unit of handoff functionality and the Electromagnetic Control unit that is used to drive described mechanical switch unit, at least one group of power input terminal is provided with voltage detection unit therein, wherein, on described power output terminal, be provided with the current detecting unit that is used to detect corresponding input current.
Preferred version of the present utility model is a double power supply automatic transfer switch electrical equipment, promptly comprises two groups of power input terminals, and is equipped with voltage detection unit on each group power input terminal.
In the utility model, described current detecting unit can be electromagnetic switch unit, hydraulic type switch element or the mercury formula switch element that can realize overcurrent and/or function of short circuit detection, but preferred version is for adopting current transformer.
At the scheme that adopts current transformer as current detecting unit, in the utility model, comprise also that input is connected with current detecting unit with described voltage detection unit respectively, output is connected with described Electromagnetic Control unit, can be according to the signal of described voltage detection unit and/or current detecting unit output controller to described Electromagnetic Control unit output corresponding control signal.
Comprise in the described controller: microprocessor, the analog to digital converter that is connected with the output of described voltage detection unit and current detecting unit respectively, the output signal of described analog to digital converter can be isolated first photoelectric coupled device that is sent to described microprocessor, be used for control relay, and be used for the control signal of described microprocessor output is isolated second photoelectric coupled device that exports described control relay to described Electromagnetic Control unit output control power supply.
In the utility model, preferably also be connected to the data processing unit that the dateout of analog to digital converter is carried out preliminary treatment between the analog to digital converter in described controller and first photoelectrical coupler.
Preferably also comprise keyboard, display unit and the remote communication interface that is connected with described microprocessor in the described controller of the present utility model.
As shown from the above technical solution, the utility model is on the basis of existing double power supply automatic transfer switch electrical equipment, set up current detecting unit, thereby make automatic transfer switching electric appliance of the present utility model except that having the voltage detecting function, also have overcurrent, function of short circuit detection, can detect the voltage failure and overcurrent and/or the short trouble that occur in the circuit.Simultaneously by the corresponding signal of output.This current detecting unit can be connected with corresponding controller, so that realize more powerful, perfect functions more, functions such as for example electric current demonstration, overcurrent and/or short trouble warning, overcurrent and/or short trouble tripping operation, fault locking, record.
Description of drawings
The utility model is described in further detail below in conjunction with drawings and Examples, in the accompanying drawing:
Fig. 1 is the theory diagram of the double power supply automatic transfer switch electrical equipment in preferred embodiment of the utility model;
Fig. 2 is the theory diagram of the double power supply automatic transfer switch electrical equipment in another preferred embodiment of the utility model;
Fig. 3 is the theory diagram of the controller in preferred embodiment of the utility model.
Embodiment
A preferred embodiment of the present utility model as shown in Figure 2, the power supply of representing to be switched with thick line among the figure (for example the 220V civil power exchanges), and represent control signal with fine rule.In this automatic transfer switching electric appliance with overcurrent, function of short circuit detection, comprise two groups of power input terminals, one group of power output terminal; Also comprise the mechanical switch unit that is used to realize handoff functionality, the Electromagnetic Control unit that is used for the driving device switch unit, and can export corresponding control signal to the Electromagnetic Control unit, and can send the controller of corresponding alarm signal according to the signal of current detecting unit output according to the signal of voltage detection unit and/or current detecting unit output.Be provided with voltage detection unit at it on each group power input terminal, current detecting unit then is located on the power output terminal.
During concrete enforcement, can be by corresponding mechanical switch unit and Electromagnetic Control unit, in three groups or more power input terminals, switch, selection wherein one group be communicated with power output terminal.
For example shown in Figure 2, current detecting unit wherein is current transformer preferably.
During concrete enforcement, current detecting unit wherein can also be electromagnetic switch unit, hydraulic type switch element, the mercury formula switch element that can realize overcurrent and/or function of short circuit detection.At this moment, as shown in Figure 1, the direct output overcurrent/short-circuit signal of current detecting unit.
Wherein, the electromagnetic force that the electromagnetic switch unit produces by the solenoid on iron core makes the iron core motion, and then the corresponding mechanical switch of promotion, to produce corresponding output signal and to send into controller, certainly, also can skip controller directly by switch to described Electromagnetic Control unit input control signal.
The electromagnetic force that the hydraulic type switch element then produces by the coil on non-magnetic conduction oil cylinder, oil bottle makes and is placed in in-oil cylinder moving iron core motion, and then promotes corresponding mechanical switch, to produce corresponding output signal.
Mercury formula switch element then is contained in the pipe or the change in volume of the mercury in the bottle by detection, and whether the electric current in the decision circuitry surpasses overcurrent and/or the short circuit current protection value of setting, to produce corresponding output signal.
As shown in Figure 3, in a preferred embodiment of the present utility model, adopt voltage transformer, adopt current transformer simultaneously as current detecting unit as voltage detection unit.Correspondingly, in controller (shown in the frame of broken lines among Fig. 3), comprise: microprocessor, the analog to digital converter that is connected with the output of voltage detection unit and current detecting unit respectively, the dateout of analog to digital converter is carried out the data processing unit of preliminary treatment, the output signal of data processing unit can be isolated first photoelectric coupled device that is sent to microprocessor, be used for control relay, and be used for the control signal of microprocessor output is isolated second photoelectric coupled device that exports control relay to Electromagnetic Control unit output control power supply.
In addition, as can be seen from Figure 3, in controller, also comprise the keyboard, display unit and the remote communication interface that are connected with microprocessor, comprise the signaling interface that is used to realize long-range switching controls in this remote communication interface.
In the embodiment shown in fig. 3; gather current signal by current transformer (can comprise primary current instrument transformer and secondary current instrument transformer); cooperate parts such as analog to digital conversion circuit in the controller, data processing unit, photoelectrical coupler, microprocessor that this current signal is carried out analyzing and processing again; when the electric current on detecting power input terminal reaches the overcurrent of setting and/or short circuit current protection value; can produce corresponding output signal; utilize this output signal; can realize more powerful, perfect functions more, for example:
(1) realizes that by display unit (liquid crystal or light-emitting diode display) electric current shows.
(2) when the operating current on the power input terminal surpasses a certain set point, send overcurrent and/or short trouble alarm signal, for example produce alarm sound, also can upload control signal to remote control center by buzzer.
(3), when the operating current on the power input terminal surpasses another higher set point, send control signal to described Electromagnetic Control unit, produce the tripping operation of overcurrent and/or short trouble.In addition, also can realize functions such as fault locking, record.
During concrete enforcement, parts working powers such as the microprocessor shown in Fig. 3, analog to digital converter, data processing unit, photoelectrical coupler, control relay, Electromagnetic Control unit, can take from the AC220V of arbitrary group of power input terminal, and through transformation, rectification and get; Also can be by the 3rd power work independently, for example DC24V power supply.
As can be seen from Figure 3, wherein use multiple isolating device, comprise voltage transformer, current transformer, photoelectrical coupler etc., and parameter adopts digital quantity in transmission course, thereby greatly improved certainty of measurement and antijamming capability.Wherein adopt one group of analog to digital converter, data processing unit, photoelectrical coupler respectively, can reduce mutual interference, make response, the fast operation of whole automatic conversion transfer switching equipment, certainty of measurement height, good reliability at two groups of input terminals.
Terminal control relay among Fig. 3 can use the big capacity relay of 16A, favourablely prevents contact melting welding, thus make automatic transfer switching electric appliance action accurately, reliable.
Claims (8)
1, a kind of automatic transfer switching electric appliance with overcurrent, function of short circuit detection, comprise at least two group power input terminals, one group of power output terminal, be used to realize the mechanical switch unit of handoff functionality and the Electromagnetic Control unit that is used to drive described mechanical switch unit, at least one group of power input terminal is provided with voltage detection unit therein, it is characterized in that
On described power output terminal, be provided with the current detecting unit that is used to detect corresponding input current.
2, the automatic transfer switching electric appliance with overcurrent, function of short circuit detection according to claim 1 is characterized in that, comprising two groups of power input terminals, is equipped with voltage detection unit on each group power input terminal.
3, the automatic transfer switching electric appliance with overcurrent, function of short circuit detection according to claim 1 is characterized in that, described current detecting unit is a current transformer.
4, the automatic transfer switching electric appliance with overcurrent, function of short circuit detection according to claim 1, it is characterized in that described current detecting unit is for realizing electromagnetic switch unit, hydraulic type switch element, the mercury formula switch element of overcurrent and/or function of short circuit detection.
5, the automatic transfer switching electric appliance with overcurrent, function of short circuit detection according to claim 3, it is characterized in that, comprise also wherein that input is connected with current detecting unit with described voltage detection unit respectively, output is connected with described Electromagnetic Control unit, can be according to the signal of described voltage detection unit and/or current detecting unit output controller to described Electromagnetic Control unit output corresponding control signal.
6, the automatic transfer switching electric appliance with overcurrent, function of short circuit detection according to claim 5 is characterized in that, comprises in the described controller:
Microprocessor;
The analog to digital converter that is connected with the output of described voltage detection unit and current detecting unit respectively;
The output signal of described analog to digital converter can be isolated first photoelectric coupled device that is sent to described microprocessor;
Be used for control relay to described Electromagnetic Control unit output control power supply;
And be used for the control signal of described microprocessor output is isolated second photoelectric coupled device that exports described control relay to.
7, the automatic transfer switching electric appliance with overcurrent, function of short circuit detection according to claim 6, it is characterized in that, also be connected to the data processing unit that the dateout of analog to digital converter is carried out preliminary treatment between the analog to digital converter in described controller and first photoelectrical coupler.
8, according to claim 6 or 7 described automatic transfer switching electric appliances, it is characterized in that, in described controller, also comprise the keyboard, display unit and the remote communication interface that are connected with described microprocessor with overcurrent, function of short circuit detection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620014346 CN2938529Y (en) | 2006-06-27 | 2006-06-27 | Automatic change-over switch electrical equipment with overcurrent, short-circuit detection function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620014346 CN2938529Y (en) | 2006-06-27 | 2006-06-27 | Automatic change-over switch electrical equipment with overcurrent, short-circuit detection function |
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| Publication Number | Publication Date |
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| CN2938529Y true CN2938529Y (en) | 2007-08-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 200620014346 Expired - Fee Related CN2938529Y (en) | 2006-06-27 | 2006-06-27 | Automatic change-over switch electrical equipment with overcurrent, short-circuit detection function |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101783252A (en) * | 2009-01-16 | 2010-07-21 | 西门子公司 | Automatic transfer switching electric appliance and method for judging and treating failure thereof |
| CN101815207B (en) * | 2009-02-23 | 2011-09-14 | 厦门Abb振威电器设备有限公司 | Power supply method for indoor unit of video intercom system of building based on Category 5 cabling or enhanced Category 5 cabling |
| CN102355044A (en) * | 2011-09-02 | 2012-02-15 | 北京工业大学 | Dual-redundancy aircraft power supply and power supply mode thereof |
| CN102487216A (en) * | 2010-12-01 | 2012-06-06 | 瑞昱半导体股份有限公司 | Power switching method and circuit |
| CN104037935A (en) * | 2014-06-27 | 2014-09-10 | 贵州长征开关制造有限公司 | Double-power-source switch controller with short circuit motion-refusing protection function |
| CN104333052A (en) * | 2013-07-22 | 2015-02-04 | 光宝电子(广州)有限公司 | Battery module, battery module power supply management method, and device thereof |
| CN104578325A (en) * | 2015-02-05 | 2015-04-29 | 郑伟雄 | Electric vehicle charging system and application method thereof |
| US9030044B2 (en) | 2010-07-27 | 2015-05-12 | Realtek Semiconductor Corp. | Methods and circuits for power switching |
-
2006
- 2006-06-27 CN CN 200620014346 patent/CN2938529Y/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101783252A (en) * | 2009-01-16 | 2010-07-21 | 西门子公司 | Automatic transfer switching electric appliance and method for judging and treating failure thereof |
| CN101783252B (en) * | 2009-01-16 | 2012-12-12 | 西门子公司 | Automatic transfer switching electric appliance and method for judging and treating failure thereof |
| CN101815207B (en) * | 2009-02-23 | 2011-09-14 | 厦门Abb振威电器设备有限公司 | Power supply method for indoor unit of video intercom system of building based on Category 5 cabling or enhanced Category 5 cabling |
| US9030044B2 (en) | 2010-07-27 | 2015-05-12 | Realtek Semiconductor Corp. | Methods and circuits for power switching |
| CN102487216A (en) * | 2010-12-01 | 2012-06-06 | 瑞昱半导体股份有限公司 | Power switching method and circuit |
| CN102487216B (en) * | 2010-12-01 | 2015-09-23 | 瑞昱半导体股份有限公司 | Power-supply switching method and circuit |
| CN102355044A (en) * | 2011-09-02 | 2012-02-15 | 北京工业大学 | Dual-redundancy aircraft power supply and power supply mode thereof |
| CN104333052A (en) * | 2013-07-22 | 2015-02-04 | 光宝电子(广州)有限公司 | Battery module, battery module power supply management method, and device thereof |
| CN104333052B (en) * | 2013-07-22 | 2017-06-16 | 光宝电子(广州)有限公司 | Battery module, battery module power supply management method and its device |
| CN104037935A (en) * | 2014-06-27 | 2014-09-10 | 贵州长征开关制造有限公司 | Double-power-source switch controller with short circuit motion-refusing protection function |
| CN104037935B (en) * | 2014-06-27 | 2016-08-17 | 贵州泰永长征技术股份有限公司 | A kind of Double Power Switch Controller of band short circuit tripping protection |
| CN104578325A (en) * | 2015-02-05 | 2015-04-29 | 郑伟雄 | Electric vehicle charging system and application method thereof |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: THAI YONG TECHNOLOGY CO., LTD., SHENZHEN CITY Free format text: FORMER NAME OR ADDRESS: SHENZHEN TAIYONG SCIENCE CO., LTD. Owner name: SHENZHEN CITY YASUNAGA TECHNOLOGY CO. Free format text: FORMER NAME OR ADDRESS: THAI YONG TECHNOLOGY CO., LTD., SHENZHEN CITY |
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| CP03 | Change of name, title or address |
Address after: Nanshan District high tech in the way of new materials in Hong Kong Jang Park in Guangdong City, Shenzhen F building 4 floor, zip code: 518057 Patentee after: SHENZHEN TAIYONG TECHNOLOGY Co.,Ltd. Address before: Nanshan District high tech in the way of new materials in Hong Kong Jang Park in Guangdong City, Shenzhen F building 4 floor, zip code: 518057 Patentee before: Shenzhen Taiyong Technology Co.,Ltd. Address after: Nanshan District high tech in the way of new materials in Hong Kong Jang Park in Guangdong City, Shenzhen F building 4 floor, zip code: 518057 Patentee after: Shenzhen Taiyong Technology Co.,Ltd. Address before: Nanshan District high tech in the way of new materials in Hong Kong Jang Park in Guangdong City, Shenzhen F building 4 floor, zip code: 518057 Patentee before: Shenzhen Taiyong Technology Co.,Ltd. |
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| ASS | Succession or assignment of patent right |
Owner name: GUIZHOU CHANGZHENG SWITCH MANUFACTURING CO., LTD. Free format text: FORMER OWNER: SHENZHEN TAIYONG TECHNOLOGY CO., LTD. Effective date: 20110216 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 518057 4/F, BUILDING F, CHANGYUAN NEW MATERIAL PORT, GAOXIN MIDDLE ROAD 1, NANSHAN DISTRICT, SHENZHEN CITY, GUANGDONG PROVINCE TO: 563002 NO. 147, SHANGHAI ROAD, ZUNYI CITY, GUIZHOU PROVINCE |
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| TR01 | Transfer of patent right |
Effective date of registration: 20110216 Address after: 563002 No. 147, Shanghai Road, Zunyi, Guizhou Patentee after: GUIZHOU CHANGZHENG SWITCH MFG CO.,LTD. Address before: Nanshan District high tech in the way of new materials in Hong Kong Jang Park 518057 Shenzhen City, Guangdong province F building 4 floor Patentee before: SHENZHEN TAIYONG TECHNOLOGY Co.,Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070822 Termination date: 20140627 |
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| EXPY | Termination of patent right or utility model |