CN103545897A - Portable motor starting power source precharged through capacitor - Google Patents
Portable motor starting power source precharged through capacitor Download PDFInfo
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- CN103545897A CN103545897A CN201310554044.4A CN201310554044A CN103545897A CN 103545897 A CN103545897 A CN 103545897A CN 201310554044 A CN201310554044 A CN 201310554044A CN 103545897 A CN103545897 A CN 103545897A
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- power supply
- switch
- storage battery
- voltage stabilizing
- charging capacitor
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Abstract
The invention discloses a portable motor starting power source precharged through a capacitor. The portable motor starting power source precharged through the capacitor is composed of a storage battery, the charging capacitor, a control switch and an output terminal, wherein two power supply branches are connected in parallel between the storage battery C and the output terminal T, the first power supply branch is composed of a first DC-DC converting voltage stabilizing module Z1 and the charging capacitor C in series connection with the first DC-DC converting voltage stabilizing module Z1, the second power supply branch is composed of a second DC-DC converting voltage stabilizing module Z2, a switch K1 and a switch K3 are arranged at the two ends of the charging capacitor C, and a switch K2 is arranged between the charging capacitor C and the second DC-DC converting voltage stabilizing module Z2. The cost, the size and the weight of the starting power source are effectively reduced, the service life of the starting power source is consistent with that of a common storage battery, and meanwhile the portable motor starting power source is convenient to carry and particularly suitable for being used in emergency.
Description
Technical field
The present invention relates to power supply unit, particularly emergent electric motor starting power-supply device manufacturing technology field.
Background technology
In a lot of occasions of using motors, all configure emergency starting power supply, so that the in the situation that of motor primary source failure, can allow electric motor starting the short time, after recovering, system re-uses main power source power supply.In these application, mostly use storage battery as emergency power plant, its advantage is not need extra power supply, the standby time is long and easy to carry.For example in motor train unit, all can configure startup power supply, in motor train unit battery malfunction situation, can also start compressor by emergency power supply, to can rise pantograph, obtain the power supply on contact line.
For motor, its startup moment, needed electric current was a lot, normally several times of motor steady-state current even tens times.Along with the startup of motor, the electric current of motor is dropped rapidly to stable state, and this process only has several seconds conventionally.Due to the characteristic of electric motor starting, the design of emergency power supply has been caused to certain restriction.
1. for emergency power supply storage battery, if carry out capacity configuration according to steady-state current, start moment storage battery and must be able to meet the requirement of high-multiplying power discharge.For storage battery, generally at 1C, (battery of 10 ampere-hours discharges by 10A discharging current to proper between 3C, be 1C), even if larger multiple can find suitable storage battery, can realize high-multiplying power discharge, but also can impact battery life, thereby affect useful life of emergency power supply, easily cause use hidden danger.
2., if according to electric motor starting current arrangements emergency power supply storage battery, although met the requirement of battery discharge multiplying power, can greatly increase the capacity of battery.Such consequence is that startup power supply can be very heavy, carries inconvenience, and crucial moment may need 2 people to move, and Emergency use has been caused to severely restricts, has also greatly increased manufacturing cost simultaneously.
Summary of the invention
In view of the above shortcoming of prior art, the object of the invention is to design a kind of portable electric machine and start power supply, guaranteeing, under the prerequisite in useful life, to there is less volume and weight, and there is lower manufacture.
The object of the invention is to realize by following means.
The portable electric machine of electric capacity precharge starts a power supply, it is characterized in that, storage battery, charging capacitor, control switch and lead-out terminal, consists of; Two power supply branch roads in parallel between storage battery C and lead-out terminal T; Wherein, by the first straight conversion Voltage stabilizing module Z1, form the first power supply branch road with the charging capacitor C connecting with it; The second straight conversion Voltage stabilizing module Z2 forms the second power supply branch road; At the two ends of charging capacitor C, be respectively arranged with K switch 1 and K switch 3; Between charging capacitor C and the second straight conversion Voltage stabilizing module Z2, be provided with K switch 2.
Adopt structure of the present invention, effectively reduced the cost, the volume and weight that start power supply, make to start power supply consistent with conventional accumulators useful life, simultaneously easy to carry again, be especially applicable to using under case of emergency.
Accompanying drawing explanation
Fig. 1 is overall structure schematic diagram of the present invention
Embodiment
Below in conjunction with drawings and Examples, the invention will be further described.
As shown in Figure 1, the present invention utilizes the portable electric machine of electric capacity precharge to start power supply, storage battery, charging capacitor, control switch and lead-out terminal, consists of.Two power supply branch roads in parallel between storage battery C and lead-out terminal T; Wherein, by the first straight conversion Voltage stabilizing module Z1, form the first power supply branch road with the charging capacitor C connecting with it; The second straight conversion Voltage stabilizing module Z2 forms the second power supply branch road; At the two ends of charging capacitor C, be respectively arranged with K switch 1 and K switch 3; Between charging capacitor C and the second straight conversion Voltage stabilizing module Z2, be provided with K switch 2.
The mode that the present invention adopts storage battery and electric capacity to match designs motor storage battery and starts power supply.In starting power supply, electric capacity carries out supporting according to capacity motor size to be started, and battery capacity designs according to the normal maximum discharge current allowing that uses of storage battery.
For example, for CRH2 EMUs, start power supply, it starts liking the compressor of 850W, and the steady-state current of this motor is 15A left and right, and maximum starting current is 80A left and right, and motor use procedure is no more than 15 minutes.According to mentality of designing of the present invention, can be that 3C carries out storage battery configuration according to battery discharging multiplying power, only need to configure storage battery and the electric capacity that capacity is larger of 5 ampere-hours, and needn't configure the even more jumbo battery of 20 ampere-hours, thereby greatly reduce weight and the cost that starts power supply.
The job step of emergency power supply of the present invention is as follows:
1. before starter motor, K switch 1 closure, K switch 2 and K switch 3 disconnect.Now first storage battery charges to electric capacity with the multiplying power of 1～3C.
2. after capacitor charging completes, K switch 1 disconnects, K switch 3 closures.Now electric capacity and storage battery disconnect, and are connected with straight conversion module, and the direct current that the energy that electric capacity stores becomes voltage stabilization by straight conversion Voltage stabilizing module is for starter motor.The selection of capacitance is according to being the needs of wanting to meet start-up course, so when the energy storage of electric capacity discharges substantially, the start-up course of motor completes substantially.
3. first Closing Switch K2, waits after straight conversion Voltage stabilizing module stable output cut-off switch K3 again.Now K switch 1, and K switch 3 disconnections, only has K switch 2 closures.The output of storage battery is connected to input end of motor after straight conversion Voltage stabilizing module, and continued power to motor is finished using.
In the whole course of work of emergency power supply, because the discharge-rate of storage battery is all in normal operating range, therefore can not cause improper impact to the life-span of storage battery, only used again the storage battery of minimum capacity simultaneously.The electric capacity and the translation circuit that increase are the situations of only using storage battery that is all far smaller than in cost or weight, thereby the cost, the volume and weight that start power supply have been reduced, make to start power supply consistent with conventional accumulators useful life, simultaneously easy to carry again, be applicable to the use under case of emergency.
The operation of K switch 1, K2 and K3 can adopt manually, at some, to the time, has the occasion of strict demand also can adopt electronically controlled mode, by simple control circuit or commercial Programmable Controller Electronic Control.
Claims (3)
1. utilize the portable electric machine of electric capacity precharge to start a power supply, it is characterized in that, by storage battery, charging capacitor, control switch and lead-out terminal, formed; Two power supply branch roads in parallel between storage battery C and lead-out terminal T; Wherein, by the first straight conversion Voltage stabilizing module Z1, form the first power supply branch road with the charging capacitor C connecting with it; The second straight conversion Voltage stabilizing module Z2 forms the second power supply branch road; At the two ends of charging capacitor C, be respectively arranged with K switch 1 and K switch 3; Between charging capacitor C and the second straight conversion Voltage stabilizing module Z2, be provided with K switch 2.
2. utilize according to claim 1 the portable electric machine of electric capacity precharge to start power supply, it is characterized in that, described storage battery G capacity arranges according to the normal maximum discharge current allowing that uses of storage battery, and operated by rotary motion is between the 1C-3C of the steady-state current of motor multiplying power.
3. utilize according to claim 1 the portable electric machine of electric capacity precharge to start power supply, it is characterized in that, described each switch adopts electronic control switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310554044.4A CN103545897A (en) | 2013-11-08 | 2013-11-08 | Portable motor starting power source precharged through capacitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310554044.4A CN103545897A (en) | 2013-11-08 | 2013-11-08 | Portable motor starting power source precharged through capacitor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103545897A true CN103545897A (en) | 2014-01-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310554044.4A Pending CN103545897A (en) | 2013-11-08 | 2013-11-08 | Portable motor starting power source precharged through capacitor |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1835328A (en) * | 2006-04-10 | 2006-09-20 | 中国科学院电工研究所 | Hybrid accumulator for elevator and control method thereof |
| CN1984831A (en) * | 2004-07-12 | 2007-06-20 | 通力股份公司 | Power source as an energy saver and emergency power source in an elevator system |
| CN101370685A (en) * | 2006-01-09 | 2009-02-18 | 通用电气公司 | Vehicle propulsion system |
| CN201723350U (en) * | 2010-06-01 | 2011-01-26 | 广州三业科技有限公司 | Portable engine starting power supply |
-
2013
- 2013-11-08 CN CN201310554044.4A patent/CN103545897A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1984831A (en) * | 2004-07-12 | 2007-06-20 | 通力股份公司 | Power source as an energy saver and emergency power source in an elevator system |
| CN101370685A (en) * | 2006-01-09 | 2009-02-18 | 通用电气公司 | Vehicle propulsion system |
| CN1835328A (en) * | 2006-04-10 | 2006-09-20 | 中国科学院电工研究所 | Hybrid accumulator for elevator and control method thereof |
| CN201723350U (en) * | 2010-06-01 | 2011-01-26 | 广州三业科技有限公司 | Portable engine starting power supply |
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| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for 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: 20140129 |