CN208849473U - Automatic discharge device - Google Patents

Automatic discharge device Download PDF

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Publication number
CN208849473U
CN208849473U CN201820699213.1U CN201820699213U CN208849473U CN 208849473 U CN208849473 U CN 208849473U CN 201820699213 U CN201820699213 U CN 201820699213U CN 208849473 U CN208849473 U CN 208849473U
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CN
China
Prior art keywords
contactor
branch
node
coil
series
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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
CN201820699213.1U
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Chinese (zh)
Inventor
吴晓强
王国平
樊东冬
陈勇春
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.)
Jiangsu Yankai Electric Co Ltd
Original Assignee
Jiangsu Yankai Electric 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
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Priority to CN201820699213.1U priority Critical patent/CN208849473U/en
Application granted granted Critical
Publication of CN208849473U publication Critical patent/CN208849473U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model discloses a kind of automatic discharge device, device includes controller, AC power source, first A.C. contactor, second A.C. contactor, intermediate relay, JK contactor, resistance and diode, the opened point that the both ends of diode are parallel with the first A.C. contactor forms self-insurance point, the coil first branch in series of the JK contactor and intermediate relay, the opened point and resistance second branch in series of second A.C. contactor, the coil third branch in series of the normally closed point and the first A.C. contactor of second A.C. contactor, coil the 4th branch in series of the opened point of intermediate relay and the second A.C. contactor.Discharge cycle, discharge time and the voltage limits for stopping electric discharge being arranged in the utility model by program, electric discharge work safely and efficiently is carried out to battery pack, avoids safety accident, so that staff no longer be needed to carry out frequent maintenance work, it reduces costs, improves work efficiency.

Description

Automatic discharge device
Technical field
The utility model relates to a kind of automatic discharge devices, belong to technical field of electric equipment.
Background technique
Direct current cabinet is exactly the common electrical equipment for supplying DC power source.Direct current cabinet by rectifier cubice and battery panel at, In the normal situation of external voltage, direct current cabinet had not only powered to electrical secondary system but also to battery panel floating charge.In outer electric fault, battery Screen bears all electrical secondary system loads, this just needs battery panel to have normal output capacity and quality of voltage, it is ensured that instruction It is normal with operation.In practical applications, it is very short that battery life is run under floating charge state always, and replacement is primary costly, Battery will periodically carry out charge-discharge test, to prolong the service life, according to the requirement of the discharge current of battery maintenance, every season Degree carries out discharge test to battery pack, and at battery pack both ends, connection meets the high-power resistance that electric discharge requires convenient for completing electric discharge work Make.Above scheme has the disadvantages that waste electric energy;Discharge time and electricity are not easily controlled, it is necessary to have special messenger in real time to electricity Stream measures;Discharge off must charge at once therefore need staff on duty, protect heavy workload.
Therefore, in view of the deficiencies of the prior art, developing a kind of automatic discharge device is meaningful technical task.
Summary of the invention
Purpose of the utility model is to solve the above problems of the existing technology, to provide a kind of automatic discharging Device, it is intended to which manually existing safety problem in operation improves efficiency and discharge effect, avoids safety accident.
The technical solution of the utility model is: a kind of automatic discharge device is installed on DC power supply and battery group Between, including controller, AC power source, the first A.C. contactor, the second A.C. contactor, intermediate relay, JK contactor, electricity Resistance and diode include DC loop and ac circuit, automatic diode in the DC loop in the automatic discharge device Cathode be connected with DC power anode, the anode of diode is connected with the anode of battery group, battery group cathode with DC power cathode is connected to form circuit, and the opened point that the both ends of the diode are parallel with the first A.C. contactor is formed certainly Protect point, the coil first branch in series of the JK contactor and intermediate relay, second A.C. contactor it is normally opened Point and resistance second branch in series, the first branch and second branch are parallel to node a and node b, node a and direct current Positive pole and battery group anode are connected, and node b is connected with DC power cathode and battery group cathode, the JK Contactor is connected with controller;In the ac circuit, the normally closed point of the second A.C. contactor and the first A.C. contactor Coil third branch in series, the coil the in series 4th of the opened point of the intermediate relay and the second A.C. contactor In node d and node e, the phase line of node d and AC power source is connected for branch, third branch and the 4th branch circuit parallel connection, node e and is handed over The zero curve in galvanic electricity source is connected.
Further, above-mentioned automatic discharge device, in which: further include third exchange in the second branch of the DC loop The opened point of contactor, the resistance, the opened point of the second A.C. contactor and third contactor opened point are connected in series, and institute Resistance is stated to be located between the opened point and third contactor opened point of the second A.C. contactor;4th branch of the ac circuit In further include third A.C. contactor coil, the opened point of the intermediate relay, the second A.C. contactor coil and The coil of third A.C. contactor is connected in series.
Further, above-mentioned automatic discharge device, in which: state and connected between first branch interior joint a and JK contactor There is first fuse.
Further, above-mentioned automatic discharge device, in which: is connected between the battery group cathode and node b Two fuses.
Further, above-mentioned automatic discharge device, in which: be connected with mutual inductance between the battery group and direct current cabinet Device, and mutual inductor is connected with controller.
The utility model is outstanding to be had the technical effect that: discharge cycles week can be arranged in the utility model by program Phase, discharge time and the voltage limits for stopping electric discharge, safely and efficiently carry out electric discharge work to battery pack, effectively overcome people Work existing safety problem in operation, avoids safety accident, to no longer staff be needed frequently to be safeguarded Work, reduces costs, improves work efficiency.
Detailed description of the invention
Fig. 1 is that the utility model uses schematic diagram;
Fig. 2 is automatic discharge device DC loop schematic diagram;
Fig. 3 is automatic discharge device ac circuit schematic diagram;
Fig. 4 is automatic discharge device DC loop another embodiment schematic diagram;
Fig. 5 is automatic discharge device ac circuit another embodiment schematic diagram.
Specific embodiment
Below by way of attached drawing combination specific embodiment, the utility model is described in further details.
As shown in Figure 1-3, the utility model automatic discharge device, is installed on direct current screen equipment DC output end and battery Between group GB.By program setting discharge cycles period, discharge time and the voltage limits for stopping electric discharge, to automatically control Battery group GB automatic charging or electric discharge.
Embodiment 1
As shown in Figure 1-3, automatic discharge device includes controller (not shown), AC power source, the first ac contactor Device, the second A.C. contactor, intermediate relay, JK contactor JK, high-power resistance Rfz and diode D, the first ac contactor Device, the second A.C. contactor and intermediate relay include opened point, normally closed Points And lines circle, include direct current in automatic discharge device Circuit and ac circuit, the cathode of automatic diode D is connected with direct current cabinet anode in the DC loop, the sun of diode D Pole is connected with the anode of battery group GB, and battery group GB cathode and direct current cabinet cathode are connected to form circuit, diode D Both ends be parallel with the opened point KM1-1 of the first A.C. contactor and form self-insurance point, the anode of diode D and JK contactor JK's One end is connected, and one end of the coil KA- 2 of the other end and intermediate relay of JK contactor JK is connected, the line of intermediate relay The other end and direct current cabinet cathode for enclosing KA-2 are connected to form circuit, and the anode of diode D is normally opened with the second A.C. contactor One end of point KM2-1 is connected, the other end of the opened point KM2-1 of the second A.C. contactor and one end of high-power resistance Rfz It is connected, the other end and direct current cabinet cathode of high-power resistance Rfz is connected to form circuit.The JK contactor JK and controller phase Connection.
The coil KA-2 of JK contactor JK and the intermediate relay first branch in series in above-mentioned DC loop, second hands over Opened point KM2-1 and high-power resistance the Rfz second branch in series of contactor are flowed, the first branch and second branch are parallel to Node a and node b, node a are connected with direct current cabinet anode and battery group GB anode, node b and direct current cabinet cathode and storage Battery pack GB cathode is connected.
Preferably, first fuse FU1, battery group GB are connected between first branch interior joint a and JK contactor JK It is connected with second fuse FU2, first fuse FU1 and second fuse FU2 between cathode and node b and plays current protection Effect, places entire circuit and is burned.Mutual inductor HL, and mutual inductor HL and control are connected between battery group GB and direct current cabinet Device is connected, for detecting discharge current.
In ac circuit, AC power source uses 220V AC power source, the normally closed point KM2-3 and first of the second A.C. contactor The coil KM1-2 of A.C. contactor third branch in series.The opened point KA-1 and the second A.C. contactor of intermediate relay Coil KM2-2 the 4th branch in series, third branch and the 4th branch circuit parallel connection in node d and node e, node d with exchange The phase line of power supply connects, and node e is connected with the zero curve of AC power source.Preferably, it is connected between node d and AC power source anode There is third fuse FU3.
Embodiment 2
As shown in Fig. 1,4 and 5, embodiment 2 is roughly the same with the circuit connection structure of embodiment 1, and the two difference is, directly It flows back in road, is also wrapped other than including the opened point KM2-1 and high-power resistance Rfz of the second A.C. contactor in second branch Third contactor opened point KM3-1, high-power resistance Rfz, the opened point KM2-1 of the second A.C. contactor and third is included to connect Tentaculum opened point KM3-1 is connected in series, and high-power resistance Rfz is located at opened point KM2-1 and the third contact of the second A.C. contactor Between device opened point KM3-1.In ac circuit, in addition to the opened point KA-1 and second for including intermediate relay is handed in the 4th branch It further include the coil KM3-2, the opened point KA- of intermediate relay of third A.C. contactor except the coil KM2-2 of stream contactor 1, the coil KM2-2 of the second A.C. contactor and the coil KM3-2 of third A.C. contactor are connected in series.
The working principle of the utility model is as follows: by taking embodiment 1 as an example, when direct current cabinet charges a battery, exchanging back In road in third branch, since the normally closed point KM2-3 of the second A.C. contactor is connected with the coil KM1-2 of the first A.C. contactor Connect so that the coil KM1-2 of the first A.C. contactor obtain it is electric, to control the opened point of the first A.C. contactor in DC circuit KM1-1 closure, direct current cabinet charges to battery group GB at this time;When needing to discharge, controller gives JK contactor JK signal, makes JK contactor JK closure, be now placed in same branch intermediate relay coil KA-2 obtain it is electric so that intermediate in ac circuit Relay normally open point KA-1 closure so that the coil KM2-2 of the second A.C. contactor in the 4th branch obtain it is electric so that directly The opened point KM2-1 closure of the second A.C. contactor in road is flowed back to, high-power resistance Rfz is accessed in battery group GB, electric power storage Pond group GB is discharged by high-power resistance Rfz.The working principle of embodiment 2 can refer to embodiment 1, and which is not described herein again.
When bright using this law can by program setting discharge cycles period and voltage limits, generally every 2~4 months into Discharge operation of row, each discharge time are 4~7 hours, and the controller includes voltage detection module, voltage detecting mould Block input terminal is connected with battery group GB, and voltage detection module output end is connected in controller, is monitored by voltage detection module Battery voltage, when limit value of the battery voltage lower than setting, controller controls JK flip-flop JK and disconnects, and restores charging shape State.Voltage limits are preferably 90~125V.Although here using the controller with voltage detection module, scheme is not only limited In this, it is possible to use in addition independent voltage detection module is arranged in the controller without voltage detection module, by voltage detecting The input terminal of module is connected with battery group, and the output end of voltage detection module is connected with controller.
What needs to be explained here is that although automatic discharge device is hereinbefore used for direct current cabinet and battery group is discharged Work, but is not limited to this, and the electrical equipment of any required charge and discharge can be used described in the utility model to be put automatically Electric installation.As long as device described in the utility model is connected between DC power supply and battery group, working principle can Referring to above.
By above description as can be seen that the utility model can be arranged discharge cycle, discharge time and be stopped by program The voltage limits only to discharge, safely and efficiently carry out electric discharge work to battery pack, effectively overcome artificial existing in operation Safety problem avoids safety accident, so that staff no longer be needed to carry out frequent maintenance work, reduces costs, It improves work efficiency.
Certainly, the representative instance of above only the utility model, in addition to this, the utility model can also have other a variety of Specific embodiment, all technical solutions formed using equivalent substitution or equivalent transformation all fall within the requires of the utility model protection Within the scope of.

Claims (5)

1. a kind of automatic discharge device is installed between DC power supply and battery group, it is characterised in that: including controller, hand over Galvanic electricity source, the first A.C. contactor, the second A.C. contactor, intermediate relay, JK contactor, resistance and diode, it is described from It include DC loop and ac circuit in dynamic electric discharge device, the cathode of automatic diode and DC power supply be just in the DC loop Pole is connected, and the anode of diode is connected with the anode of battery group, and battery group cathode is connected with DC power cathode Circuit is constituted, the opened point that the both ends of the diode are parallel with the first A.C. contactor forms self-insurance point, the JK contactor With the coil first branch in series of intermediate relay, the opened point and resistance of second A.C. contactor in series Two branches, the first branch and second branch are parallel to node a and node b, node a and DC power anode and battery Group anode is connected, and node b is connected with DC power cathode and battery group cathode, and the JK contactor is connected with controller It connects;
In the ac circuit, the coil third branch in series of the normally closed point and the first A.C. contactor of the second A.C. contactor Road, coil the 4th branch in series of the opened point of the intermediate relay and the second A.C. contactor, third branch and Four branch circuit parallel connections are connected in node d and node e, the phase line connection of node d and AC power source, node e with the zero curve of AC power source It connects.
2. automatic discharge device according to claim 1, it is characterised in that: also wrapped in the second branch of the DC loop Include the opened point of third A.C. contactor, the resistance, the opened point of the second A.C. contactor and third contactor opened point It is connected in series, and the resistance is located between the opened point and third contactor opened point of the second A.C. contactor;
Further include the coil of third A.C. contactor in 4th branch of the ac circuit, the intermediate relay it is normally opened The coil of point, the coil of the second A.C. contactor and third A.C. contactor is connected in series.
3. automatic discharge device according to claim 1, it is characterised in that: the first branch interior joint a is contacted with JK First fuse is connected between device.
4. automatic discharge device according to claim 1, it is characterised in that: between the battery group cathode and node b It is connected with second fuse.
5. automatic discharge device according to claim 1, it is characterised in that: connected between the battery group and direct current cabinet There is mutual inductor, and mutual inductor is connected with controller.
CN201820699213.1U 2018-05-11 2018-05-11 Automatic discharge device Expired - Fee Related CN208849473U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201820699213.1U CN208849473U (en) 2018-05-11 2018-05-11 Automatic discharge device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201820699213.1U CN208849473U (en) 2018-05-11 2018-05-11 Automatic discharge device

Publications (1)

Publication Number Publication Date
CN208849473U true CN208849473U (en) 2019-05-10

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Application Number Title Priority Date Filing Date
CN201820699213.1U Expired - Fee Related CN208849473U (en) 2018-05-11 2018-05-11 Automatic discharge device

Country Status (1)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108390444A (en) * 2018-05-11 2018-08-10 江苏盐开电气有限公司 Automatic discharge device and its control method
CN110138053A (en) * 2019-06-19 2019-08-16 山西华飞智控科技有限公司 Lithium battery maintains automatic discharge device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108390444A (en) * 2018-05-11 2018-08-10 江苏盐开电气有限公司 Automatic discharge device and its control method
CN110138053A (en) * 2019-06-19 2019-08-16 山西华飞智控科技有限公司 Lithium battery maintains automatic discharge device

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CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20190510

Termination date: 20200511