CN201438268U - Dual-power switching control device - Google Patents

Dual-power switching control device Download PDF

Info

Publication number
CN201438268U
CN201438268U CN2009201331519U CN200920133151U CN201438268U CN 201438268 U CN201438268 U CN 201438268U CN 2009201331519 U CN2009201331519 U CN 2009201331519U CN 200920133151 U CN200920133151 U CN 200920133151U CN 201438268 U CN201438268 U CN 201438268U
Authority
CN
China
Prior art keywords
voltage
power supply
monitoring
power
control
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.)
Expired - Fee Related
Application number
CN2009201331519U
Other languages
Chinese (zh)
Inventor
刘星明
何玲兰
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.)
SHENZHEN THINKER ELECTRICAL APPARATUS INDUSTRIAL Co Ltd
Original Assignee
SHENZHEN THINKER ELECTRICAL APPARATUS INDUSTRIAL 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 SHENZHEN THINKER ELECTRICAL APPARATUS INDUSTRIAL Co Ltd filed Critical SHENZHEN THINKER ELECTRICAL APPARATUS INDUSTRIAL Co Ltd
Priority to CN2009201331519U priority Critical patent/CN201438268U/en
Application granted granted Critical
Publication of CN201438268U publication Critical patent/CN201438268U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Abstract

The utility model is applicable to the power control field and discloses a dual-power switching control device. The dual-power switching control device comprises a control unit, two monitoring units and a relay driving unit, wherein the monitoring units are respectively connected with dual powers and are used for monitoring the voltages of the dual powers respectively; the control unit is connected with the power monitoring units and can be used for outputting a control signal according to the monitoring result of the monitoring units; and the relay driving unit is electrically connected with the control unit and accepts the power supplied by one of the dual powers under the control of the control unit. As the monitoring units can monitor the power supply states of the dual powers, when the main power appears exception or is cut off, the monitoring units can switch the power to a stand-by power, therefore, the equipment can treat the normal power supply state, so as to supply power normally in power cut-off or exception and improve the power supply reliability of the equipment; meanwhile, the dual-power switching control device has the advantages of simple structure and smaller volume.

Description

Dual power switching control device
Technical field
The utility model relates to power supply control technology field, particularly has dual power switching control device.
Background technology
Along with development of social production, many industries and department are higher to the reliability requirement of power supply, for example hospital, post office, telecommunications, important enterprise etc.For the continuity that guarantees to power, some important industries and department all adopt dual power supply, therefore need carry out switching controls to dual power supply.
Existing dual power switching control device can't be monitored voltage, and when backup power source voltage was low, even when power supply switched to standby power supply, consumer also may not operate as normal, so reliability is lower.Adopt a large amount of auxiliary reclay components and parts simultaneously, so volume is bigger, the wiring more complicated.
The utility model content
The technical matters that the utility model mainly solves provides a kind of dual power switching control device, and described dual power switching control device volume is less, simple in structure, and reliability is higher simultaneously.
In order to address the above problem, the utility model provides a kind of dual power switching control device, described dual power switching control device comprises control module, two monitoring means and relay drive unit, wherein, described power supply monitoring unit is connected with dual power supply respectively, and the voltage of this dual power supply is monitored respectively; Described control module is connected with monitoring means, according to described monitoring means monitoring result output control signal; Described relay drive unit is electrically connected with described control module, and accepts described control module and control one road power supply power supply in the described dual power supply.
Preferably, described monitoring means comprises two-way voltage collection circuit and the voltage comparator circuit that is electrically connected with described voltage collection circuit, described voltage comparator circuit is electrically connected with described control module respectively, wherein, the two-way voltage collection circuit is gathered backup power source voltage and main power voltage respectively, described voltage comparator circuit compares the supply voltage and the reference voltage of described voltage collection circuit collection, and comparative result is defeated by described control module.
Preferably, described relay drive circuit comprises triode, fly-wheel diode and relay, wherein, described fly-wheel diode and relay parallel connection, its two ends are connected with described dual power switching control device power supply with the collector of described triode respectively, the base stage of described triode is connected its grounded emitter with described control module control end.
Preferably, described control module is single-chip microcomputer or microprocessor.
Preferably, described triode is a positive-negative-positive.
The utility model dual power switching control device; monitor described dual power supply state by described monitoring means; when described main electricity occurs unusual or cuts off the power supply; by described monitoring means power supply is switched to standby power supply; therefore can make device processes normal power supply state; thereby, improve the reliability of power devices in outage or can normal power supply when unusual.This kind is simple in structure simultaneously, and volume is also less.Also because described monitoring means comprises two-way voltage collection circuit and the voltage comparator circuit that is electrically connected with the described voltage collection circuit of two-way, when main power voltage deficiency or outage, described control module determines whether to control described relay drive unit action according to the backup power source voltage state; When backup power source voltage is in normal condition, during described primary power source de-energizes, power supply is switched to standby power supply by described relay drive unit; When backup power source voltage was in up-set condition, described relay drive unit was failure to actuate, thereby also improved the dual power switching control device reliability.
Description of drawings
Fig. 1 is the utility model dual power switching control device one embodiment theory diagram;
Fig. 2 is another embodiment theory diagram of the utility model dual power switching control device;
Fig. 3 is a relay drive unit embodiment principle schematic described in the utility model.
Below in conjunction with embodiment, and with reference to accompanying drawing, realization, functional characteristics and the advantage of the utility model purpose is described further.
Embodiment
The utility model dual power switching control device embodiment; monitor described dual power supply state by described monitoring means; when described main power supply occurs unusual or cuts off the power supply; by described monitoring means power supply is switched to standby power supply; therefore can make electricity consumption device processes normal power supply state; thereby in outage or can normal power supply when unusual, improve power devices by property.
As shown in Figure 1, the utility model dual power switching control device proposes an embodiment.
Described dual power switching control device comprises control module 1, first monitoring means 2, second monitoring means 3 and relay drive unit 4.Wherein, described first monitoring means 2 is electrically connected with primary power 5 and described control module 1 in the dual power supply respectively, and the voltage of described primary power 5 is monitored; Described second monitoring means 3 is electrically connected with standby power supply 6 and described control module 1 in the dual power supply respectively, and the voltage of described standby power supply 7 is monitored; Described control module 1 is connected with second monitoring means 3 with described first monitoring means 2 respectively, and the monitoring result of described first monitoring means 2 and second monitoring means 3 is exported control signal; Described relay drive unit 4 is connected with described control module 1, accepts the control of described control module 1, and controls described first monitoring means 2 or second monitoring means 3 is consumer 7 power supplies according to described control signal.
Specifically, described consumer 7 is provided with the power supply of two-way power supply, and wherein, one road power supply is as primary power 5, and another road power supply is as standby power supply 6.Described first monitoring means 2 is defeated by described control module 1 with described primary power 5 voltage statuss in real time; Described second monitoring means 3 is defeated by described control module 1 with the voltage status of described standby power supply 6 in real time, described control module 1 is according to the state of described primary power 5 this moment, and handles according to the voltage status of the described standby power supply 6 of described second monitoring means 3 monitoring.
When outage appears in described primary power 5, described first monitoring means 2 described primary power 5 voltage statuss at this moment is defeated by described control module 1, and described control module 1 is handled according to the voltage status of the standby power supply 6 of primary power 5 voltage statuss and 3 inputs of described second monitoring means.When the voltage of described standby power supply 6 for just often, described control module 1 is controlled described relay unit 4 actions according to the voltage status output control signal of the standby power supply 6 of primary power 5 voltage statuss and described second monitoring means 3 inputs this moment, is described consumer 7 power supplies by described standby power supply 6; When the voltage of described standby power supply 6 was undesired, described control module 1 was not exported control signal, and described relay drive unit 4 does not switch.
Owing to described dual power switching control device, monitor the voltage status of described primary power 5 and standby power supply 6 respectively by described first monitoring means 2 and second monitoring means 3.When described main power supply 5 power supplys occur unusual or outage; and described standby power supply 6 voltages just often; by described first monitoring means 2 power supply is switched to standby power supply 6; therefore can make device processes normal power supply state; thereby make described primary power 5 in outage or when unusual; described consumer 7 can normal power supplies, improve power devices by property.
As shown in Figure 2, the utility model dual power switching control device also proposes another embodiment on the basis of the foregoing description.
Described dual power switching control device comprises control module 1, first monitoring means 2, second monitoring means 3 and relay drive unit 4.Wherein, described first monitoring means 2 is electrically connected with primary power 5 and described control module 1 in the dual power supply respectively, and the voltage of described primary power 5 is monitored; Described second monitoring means 3 is electrically connected with standby power supply 6 and described control module 1 in the dual power supply respectively, and the voltage of described standby power supply 7 is monitored; Described control module 1 is connected with second monitoring means 3 with described first monitoring means 2 respectively, and the monitoring result of described first monitoring means 2 and second monitoring means 3 is exported control signal; Described relay drive unit 4 is connected with described control module 1, accepts the control of described control module 1, and controls described first monitoring means 2 or second monitoring means 3 is consumer 7 power supplies according to described control signal.
Described first monitoring means 2 comprises first voltage collection circuit 21 and first voltage comparator circuit 22 that is electrically connected with described first voltage collection circuit 21, and described first voltage comparator circuit 22 is electrically connected with described control module 1.Wherein, described first voltage collection circuit 21 is gathered primary power 5 voltages, and described first voltage comparator circuit 22 compares the voltage and the reference voltage of the primary power 5 that described first voltage collection circuit 21 is gathered, and comparative result is defeated by described control module 1.Wherein, described comparative result is above-mentioned voltage status.
Described second monitoring means 3 comprises second voltage collection circuit 31 and second voltage comparator circuit 32 that is electrically connected with described second voltage collection circuit 31, described second voltage comparator circuit 32 is electrically connected with described control module 1, wherein, described second voltage collection circuit 31 is gathered primary power 5 voltages, primary power 5 that described second voltage comparator circuit 32 is gathered described second voltage collection circuit 31 and voltage and reference voltage compare, and comparative result is defeated by described control module 1.Wherein, described comparative result is above-mentioned voltage status.Described reference voltage is for being provided with as required.
In described enforcement, described first voltage collection circuit 21 can be identical with described second voltage collection circuit 31, and described first voltage comparator circuit 22 can be identical with described second voltage comparator circuit 32.
Specifically, described consumer 7 is provided with the two-way power supply, and wherein one road power supply is as primary power 5, and another road power supply is as standby power supply 6.Described first voltage collection circuit 21 is gathered the voltage of described primary power 5 in real time, is compared by the voltage and the reference voltage of described first voltage comparator circuit 22 with the primary power 5 of collection, and comparative result is defeated by described control module 1; Described second voltage collection circuit 31 is gathered the voltage of described standby power supply 6 in real time, is compared by the voltage and the reference voltage of described second voltage comparator circuit 32 with the standby power supply 6 of collection, and comparative result is defeated by described control module 1.Described control module 1 is handled according to the comparative result of described first voltage comparator circuit 22 outputs and the comparative result of described second voltage comparator circuit 32 outputs.
When outage appears in described primary power 5, described first voltage collection circuit 21 is gathered the voltage of described primary power 5 in real time, and primary power 5 voltages and the reference voltage of inciting somebody to action this moment by described first voltage comparator circuit 22 compare, this moment, reference voltage was higher than the voltage of described primary power 5, and this comparative result is defeated by described control module 1, described control module 1 is handled according to the voltage and the reference voltage comparative result of the standby power supply 6 of primary power 5 voltage statuss and 32 inputs of described second voltage comparator circuit.When the voltage of described standby power supply 6 during more than or equal to described reference voltage, described control module 1 according to primary power 5 voltages and reference voltage comparative result and this moment standby power supply 6 voltage control described relay unit 4 with reference voltage comparative result output control signal and move, be the power supply source of described consumer 7 with standby power supply 6 usefulness; When the voltage of described standby power supply 6 during less than described reference voltage, described control module 1 is not exported control signal, and described relay drive unit 4 does not switch.
As shown in Figure 3, described relay drive unit comprises triode Q, sustained diode and relay T, wherein, the collector of described triode Q is connected the back and is connected with described dual power switching control device power supply with described relay T, the basis set of described triode Q is connected with the control end of described control module 1, its emission collection ground connection.Also be serially connected with described sustained diode between described relay T and this double-power supply switching device power supply, promptly described sustained diode is in parallel with described relay T.Wherein, the negative electrode of described sustained diode is connected with power supply, and anode is connected with the collector of described triode Q.
In above-mentioned enforcement, described control module 1 can be single-chip microcomputer, microprocessor or PLC (Programmable Logic Control, Programmable Logic Controller).Described triode Q is a positive-negative-positive.
The above only is a preferred embodiment of the present utility model; be not so limit claim of the present utility model; every equivalent structure or equivalent flow process conversion that utilizes the utility model instructions and accompanying drawing content to be done; or directly or indirectly be used in other relevant technical fields, all in like manner be included in the scope of patent protection of the present utility model.

Claims (5)

1. dual power switching control device is characterized in that:
Described dual power switching control device comprises control module, two monitoring means and relay drive unit, and wherein, described power supply monitoring unit is connected with dual power supply respectively, and the voltage of this dual power supply is monitored respectively; Described control module is connected with monitoring means, according to described monitoring means monitoring result output control signal; Described relay drive unit is electrically connected with described control module, and accepts described control module and control one road power supply power supply in the described dual power supply.
2. according to the described dual power switching control device of claim 1, it is characterized in that:
Described monitoring means comprises two-way voltage collection circuit and the voltage comparator circuit that is electrically connected with described voltage collection circuit, described voltage comparator circuit is electrically connected with described control module respectively, wherein, the two-way voltage collection circuit is gathered backup power source voltage and main power voltage respectively, described voltage comparator circuit compares the supply voltage and the reference voltage of described voltage collection circuit collection, and comparative result is defeated by described control module.
3. according to claim 1 or 2 described dual power switching control devices, it is characterized in that:
Described relay drive circuit comprises triode, fly-wheel diode and relay, wherein, described fly-wheel diode and relay parallel connection, its two ends are connected with described dual power switching control device power supply with the collector of described triode respectively, the base stage of described triode is connected its grounded emitter with described control module control end.
4. according to the described dual power switching control device of claim 3, it is characterized in that:
Described control module is single-chip microcomputer or microprocessor.
5. according to the described dual power switching control device of claim 4, it is characterized in that:
Described triode is a positive-negative-positive.
CN2009201331519U 2009-06-24 2009-06-24 Dual-power switching control device Expired - Fee Related CN201438268U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2009201331519U CN201438268U (en) 2009-06-24 2009-06-24 Dual-power switching control device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2009201331519U CN201438268U (en) 2009-06-24 2009-06-24 Dual-power switching control device

Publications (1)

Publication Number Publication Date
CN201438268U true CN201438268U (en) 2010-04-14

Family

ID=42400240

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2009201331519U Expired - Fee Related CN201438268U (en) 2009-06-24 2009-06-24 Dual-power switching control device

Country Status (1)

Country Link
CN (1) CN201438268U (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102514494A (en) * 2011-12-20 2012-06-27 刘立文 Automatic explosion proofing control device for explosion-proof electric vehicle and control method
CN104135065A (en) * 2014-08-11 2014-11-05 渤海大学 Double-circuit power supply self-resetting control device and method for large-scale hotel with emergency power supply
CN105281418A (en) * 2014-06-19 2016-01-27 国网山西省电力公司电力科学研究院 Power-off preventive device of portable electric energy quality monitor
CN105717914A (en) * 2016-02-05 2016-06-29 杭州益泰科汽车电器有限公司 Detection system and detection method of vehicle-mounted air conditioner control panel
CN106338690A (en) * 2016-08-25 2017-01-18 浪潮电子信息产业股份有限公司 Standby battery detection method, device and system and power supply method
CN109065085A (en) * 2018-08-23 2018-12-21 郑州云海信息技术有限公司 A kind of power supply circuit and method storing equipment
CN109546739A (en) * 2017-09-21 2019-03-29 航天科工惯性技术有限公司 Dual-power switching system and with its with bore gyroscopic survey device

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102514494A (en) * 2011-12-20 2012-06-27 刘立文 Automatic explosion proofing control device for explosion-proof electric vehicle and control method
CN105281418A (en) * 2014-06-19 2016-01-27 国网山西省电力公司电力科学研究院 Power-off preventive device of portable electric energy quality monitor
CN104135065A (en) * 2014-08-11 2014-11-05 渤海大学 Double-circuit power supply self-resetting control device and method for large-scale hotel with emergency power supply
CN105717914A (en) * 2016-02-05 2016-06-29 杭州益泰科汽车电器有限公司 Detection system and detection method of vehicle-mounted air conditioner control panel
CN106338690A (en) * 2016-08-25 2017-01-18 浪潮电子信息产业股份有限公司 Standby battery detection method, device and system and power supply method
CN106338690B (en) * 2016-08-25 2019-08-02 浪潮电子信息产业股份有限公司 A kind of reserve battery detection method, device, system and method for supplying power to
CN109546739A (en) * 2017-09-21 2019-03-29 航天科工惯性技术有限公司 Dual-power switching system and with its with bore gyroscopic survey device
CN109065085A (en) * 2018-08-23 2018-12-21 郑州云海信息技术有限公司 A kind of power supply circuit and method storing equipment

Similar Documents

Publication Publication Date Title
CN201438268U (en) Dual-power switching control device
CN204333900U (en) Low-power consumption standby protective circuit and air conditioner
CN201655922U (en) Automatic maintenance device for UPS backup battery
CN203056953U (en) Driver and bus capacitor discharge circuit thereof
CN203443031U (en) Low standby power consumption control circuit and air conditioner
CN103197578A (en) Robot electric quantity monitoring system
CN207853453U (en) Backup battery circuit, motor driver and electric vehicle
CN105242221A (en) DC feedback type DC electronic load for locomotive power supply test
CN103095099B (en) A kind of load driving circuits
CN104578377B (en) Cabinet power-supply system, power supply method for handover control and cabinet
CN203301212U (en) Dual standby saving type DC power supply system
CN202282640U (en) Dual power supply automatic switching circuit
CN209748259U (en) Automatic switching circuit for standby battery
CN101162387A (en) Energy-saving control circuit
CN201813355U (en) Single chip-based switch circuit with low stand-by power consumption
CN203761029U (en) Switching power supply circuit of firefighting emergency power supply
CN203186118U (en) Automatic power-off controller
CN202374353U (en) Television and motherboard power supply short-circuit detection circuit thereof
CN102684294B (en) Main and standby power supply control device for embedded equipment
CN104393667A (en) Portable power supply switching device
CN204290795U (en) A kind of intelligent water pump overall-in-one control schema plate
CN204316172U (en) Compact power switching device shifter
CN104638758B (en) Real-time detection and switching circuit for power supply of remote control intelligent gas meter concentrator
CN103746343A (en) Switching power supply circuit of firefighting emergency power supply
CN202364451U (en) Intelligent lamp circuit

Legal Events

Date Code Title Description
GR01 Patent grant
C14 Grant of patent or utility model
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20100414

Termination date: 20150624

EXPY Termination of patent right or utility model