CN207780198U - A kind of control system of battery charging and discharging test - Google Patents

Abstract

The utility model provides a kind of control system of battery charging and discharging test, including：Battery, charger, controller, charging circuit, discharge circuit, load circuit, charging current detecting circuit, discharge current testing circuit, voltage detecting circuit, data input circuit, first voltage conversion circuit, second voltage conversion circuit.Controller is electrically connected with data input circuit, charging circuit, discharge circuit, charging current detecting circuit, discharge current testing circuit, voltage detecting circuit respectively；Battery is electrically connected with charger, load circuit, charging circuit, discharge circuit, voltage detecting circuit respectively；Charging circuit detection circuit is also electrically connected with charging circuit；Discharge current testing circuit is also electrically connected with the electric circuit of electric discharge；Charger is electrically connected with charging circuit；Load circuit is electrically connected with discharge circuit.It realizes and battery progress charge-discharge test is automatically controlled, save manpower, improve testing efficiency.

Description

A kind of control system of battery charging and discharging test

Technical field

The utility model is related to battery testing, espespecially a kind of control system of battery charging and discharging test.

Background technology

With the development of science and technology "smart" products are more and more, small mechanical, electrical brain in one's hands, ipod arrive greatly robot, electronic Automobile is brought one and another pleasantly surprised to our life.

When producing these "smart" products, the detection of battery is a very important link, if battery detecting less than Position, battery quality are unqualified, it is most likely that set off an explosion, or generate spark, there are great security risks.Certain mobile terminals If there are battery problems, or even are not allowed to band and board a plane, bring great inconvenience to users.

For a long time, the charge-discharge circuit of battery is all to carry out charge and discharge by manual operation.Battery is opened by charging Connection is connected to charger, and discharge circuit is connected to by discharge switch；Charge switch, discharge switch are all manually to switch. Since the battery charging and discharging period is long, manual operation get up it is time-consuming and laborious, and staff come off duty after can not to battery into Row continuance test causes testing efficiency low.And the voltage of some batteries is relatively high, and short circuit, meeting once occurs in test Huge spark is sent out, the health of operating personnel is threatened.

Therefore to solve the above-mentioned problems, it is desirable to provide a kind of automatic control system carries out charge-discharge test to battery.

Invention content

The utility model provides a kind of control system of battery charging and discharging test, realizes and carries out charge-discharge test to battery Automatically control, save manpower, improve testing efficiency.

The technical scheme that the utility model is provided is as follows：

A kind of control system of battery charging and discharging test, including：Battery, charger, controller, charging circuit, electric discharge electricity Road, load circuit, charging current detecting circuit, discharge current testing circuit, voltage detecting circuit, data input circuit, first Voltage conversion circuit, second voltage conversion circuit：The controller respectively with the data input circuit, the charging circuit, The discharge circuit, charging current detecting circuit, discharge current testing circuit, voltage detecting circuit electrical connection；The battery point It is not electrically connected with the charger, the load circuit, the charging circuit, the discharge circuit, the voltage detecting circuit； The charging circuit detection circuit is also electrically connected with the charging circuit；The discharge current testing circuit is also electric with the electric discharge Circuit is electrically connected；The charger is electrically connected with the charging circuit；The load circuit is electrically connected with the discharge circuit；Institute First voltage conversion circuit is stated to be electrically connected with the charging current detecting circuit, the discharge current testing circuit respectively；It is described Second voltage conversion circuit is also electrically connected with the controller, the data input circuit.

Preferably, the data input circuit include input sub-circuit, communication conversion sub-circuit, the input sub-circuit and The communication conversion sub-circuit electrical connection；The input sub-circuit includes input interface P3, and the communication conversion sub-circuit includes Communicate conversion chip U1；The first port of the input port P3 is electrically connected with the 14th interface for communicating conversion chip U1 It connects, the second port of the input port P3 is electrically connected with the 13rd interface of the communication conversion chip U1；The input terminal First port, the second port of mouth P3 is connected to protection device respectively；The 11st interface of the communication conversion chip U1 with it is described Controller is electrically connected, and the 12nd interface of the communication conversion chip U1 is electrically connected with the controller.

Preferably, the charging circuit includes charge switch sub-circuit, charging photoelectric coupling sub-circuit；The charging photoelectricity It includes charging photoelectrical coupler U3 to couple sub-circuit, and the first interface of the charging photoelectrical coupler U3 is connected by resistance R20 To the controller；The second interface of the charging photoelectrical coupler U3 is connected to the controller by resistance R21；It is described to fill The second interface of electric light electric coupler U3 is also grounded；The third interfacing ground of the charging photoelectrical coupler U3；The charging is opened Climax circuit includes the first mos pipe Q1, and the grid of the first mos pipes Q1 is electrically connected by resistance R16 and one end of resistance R19 It connects, the other end of the resistance R19 passes sequentially through resistance R18, capacitance C9 and is electrically connected with the source electrode of the first mos pipes Q1, institute The source electrode for stating the first mos pipes Q1 is connected to the battery J3；The other end of the resistance R19 is also filled by resistance R17 with described The 4th interface of electric light electric coupler U3 is electrically connected；The one end of the 4th interface of the charging photoelectrical coupler U3 also with resistance R2 Electrical connection, the other end of the resistance R2 are electrically connected with the anode of diode D4, the cathode of the diode D4 and described first The drain electrode of mos pipes Q1 is electrically connected；The drain electrode of the first mos pipes Q1 also filters sub-circuit and the resistance R2's by the first RC The other end is electrically connected；The drain electrode of the first mos pipes Q1 also connects the charger.

Preferably, the discharge circuit includes discharge switch sub-circuit, electric discharge photoelectric coupling sub-circuit；The electric discharge photoelectricity It includes electric discharge photoelectrical coupler U4 to couple sub-circuit, and the first interface of the electric discharge photoelectrical coupler U4 is connected by resistance R27 To the controller；The second interface of the electric discharge photoelectrical coupler U4 is connected to the controller by resistance R28；It is described to put The second interface of electric light electric coupler U4 is also grounded；The third interfacing ground of the electric discharge photoelectrical coupler U4；The electric discharge is opened Climax circuit includes the 2nd mos pipe Q2, and the grid of the 2nd mos pipes Q2 is electrically connected by resistance R23 and one end of resistance R26 It connects, the other end of the resistance R26 passes sequentially through resistance R25, capacitance C11 and is electrically connected with the source electrode of the 2nd mos pipes Q2, institute The source electrode for stating the 2nd mos pipes Q2 is connected to the load circuit；The other end of the resistance R26 also by resistance R24 with it is described The 4th interface electrical connection of electric discharge photoelectrical coupler U4；The 4th interface of the electric discharge photoelectrical coupler U4 also with resistance R8 one End electrical connection, the other end of the resistance R8 is electrically connected with the anode of diode D5, the cathode of the diode D5 and described the The drain electrode of two mos pipes Q2 is electrically connected；The drain electrode of the 2nd mos pipes Q2 also filters sub-circuit and the resistance R8 by the 2nd RC The other end electrical connection；The drain electrode of the 2nd mos pipes Q2 also meets the battery J3.

Preferably, the charging current detecting circuit includes charging current detection chip U7, and the charging current detects core The working power end of piece U7 is electrically connected with the first power supply 5V；The detection hot end of the charging current detection chip U7 with it is described Charging circuit is electrically connected, and the detection cold end of the charging current detection chip U7 is electrically connected with the anode of the battery J3； The output end of the charging current detection chip U7 is electrically connected with the controller.

Preferably, the discharge current testing circuit includes discharge current detection chip U8, and the discharge current detects core The working power end of piece U8 is electrically connected with the first power supply 5V；The detection hot end of the discharge current detection chip U8 with it is described The anode electrical connection of battery J3, the detection cold end of the discharge current detection chip U8 are electrically connected with the discharge circuit； The output end of the discharge current detection chip U8 is also electrically connected with the controller.

Preferably, the voltage detecting circuit includes resistance R6, resistance R7, diode D7, protection device D8；The resistance One end of R6 is electrically connected with the anode of the battery J3, and the anode of the battery J3 is electrically connected with voltage detecting circuit；The electricity The other end of resistance R6 is grounded by resistance R7, and the other end of the resistance R6 is electrically connected with the cathode of diode D7, two pole The plus earth of pipe D7；The other end of the resistance R6 is also by protecting device D8 ground connection；The other end of the resistance R6 also connects It is connected to the controller.

Preferably, the first voltage conversion circuit includes first voltage conversion chip U5；The first voltage converts core The 11st interface of piece U5 is also electrically connected with one end of resistance R29, and the other end of the resistance R29 is also grounded by resistance R47, The other end of the resistance R29 is also electrically connected with one end of switch J1, the other end of the switch J1 by fuse FUSE1 with The battery J3 electrical connections；The 13rd interface of the first voltage conversion chip U5 is electrically connected with the cathode of diode D6, institute The anode for stating diode D6 is electrically connected by fuse FUSE1 with the battery J3；The of the first voltage conversion chip U5 Three interfaces are electrically connected by capacitance C16 with the cathode of diode D9；The 4th interface of the first voltage conversion chip U5 and institute State the anode electrical connection of diode D9；The cathode electricity of the second interface of the first voltage conversion chip U5 and the diode D9 Connection, the second interface of the first voltage conversion chip U5 are also electrically connected with one end of inductance L1, and the inductance L1's is another End the first power supply of output is simultaneously electrically connected with second voltage conversion circuit, and the other end of the inductance L1 also passes through resistance R34 and institute State the 9th interface electrical connection of first voltage conversion chip U5.

Preferably, second voltage conversion circuit includes second voltage conversion chip U2；The second voltage conversion chip U2 First interface be electrically connected with the first voltage conversion circuit；The third interface of the second voltage conversion chip U2 passes through electricity Resistance R32 is connected to the first voltage conversion circuit；The 4th interface of the second voltage conversion chip U2 is connect by resistance R31 Ground；The 4th interface of the second voltage conversion chip U2 passes through the 5th of the resistance R30 and second voltage conversion chip U2 Interface is electrically connected；The 5th interface of the second voltage conversion chip U2 also passes sequentially through resistance R33, Light-emitting diode LED 1 connects 5th interface on ground, the second voltage conversion chip U2 exports second source.

By a kind of control system of battery charging and discharging test provided by the utility model, following at least one can be brought Advantageous effect：

1, charge-discharge circuit and discharge circuit are electrically connected with the controller, and controller can be by detecting battery capacity, to realize Control to charging circuit and discharge circuit, when battery capacity reaches preset condition, can automatically control battery charging and Electric discharge, and corresponding charging measurement or discharge test are carried out to battery.It is controlled and test process is prosthetic operation, is saved Manpower；Simultaneously as being that controller controls charge or discharge, continual test can be realized, improve test Efficiency.Default testing time can be pre-set in the controller, meet different testing requirements.

2, controller is electrically connected with charging current detecting circuit, discharge current testing circuit, voltage detecting circuit respectively, energy The electricity of enough detections effectively detection battery.Since when battery charging complete, electric current can become smaller, and voltage can reach the work of battery Make voltage；When battery discharge is completed, electric current, voltage value can become very little；Therefore the electric current and voltage of battery are carried out Detection, can effectively detect battery capacity, and automation control and test are realized convenient for controller.

3, controller is electrically connected with charging circuit, discharge circuit respectively, when it is abundance to detect battery capacity, meeting It is automatic to disconnect charging circuit, discharge circuit is connected, discharges battery；Automation control is realized, manpower money is saved Source.It,, can be to the safety of staff if manual control since the voltage of battery is relatively high and in battery capacity abundance Bring threat；Therefore, while realizing automation control, it is thus also avoided that the health threat of staff.

4, controller is electrically connected with charging circuit, discharge circuit respectively, when it is deficiency to detect battery capacity, meeting It is automatic to disconnect discharge circuit, charging circuit is connected, charges the battery；Automation control is realized, manpower money is saved Source.

5, in the present invention, the MCU that controller can use is microcontroller, model STM32F103C8T6, due to this money Its is small for chip, and the comparison used is more, and software development is got up convenient.Controller in the present invention can use the MCU of bigger It replaces, but many pins that can be available in this way, causes to waste.

6, in the first voltage conversion circuit, switch J1 is not the switching as commonly switching identically controlled electric current (such as fluorescent lamp has electric current by lower switch and passes through, and lamp is opened；Current vanishes are pressed again, and lamp is closed), but control first voltage The enabled foot (Enable) of conversion chip.By lower switch, the enabled foot level of chip is raised, and chip is started to work, then will be opened It closes and resets, chip enables foot level and is pulled low, and chip is stopped.Due to being manually pressed by switch, mechanical shaking is can not to keep away Exempt from, if directly controlling the current switching in circuit, larger fluctuation there are one the electric currents of entire circuit can be made, cause chip Damage can then substantially reduce the risk of wafer damage and by enabled foot control system.

7, in charging circuit and discharge circuit, all it is isolated with controller with photoelectrical coupler.Because filling The circuit of electric discharge, electric current is up to 10A or more, and the control circuit of controller, electric current only have milliampere rank, the two to differ close 1000 times.It is isolated by optocoupler and charge-discharge circuit can be not only controlled, while also protects chip will not be by Damage.

Description of the drawings

Below by a manner of clearly understandable, preferred embodiment is described with reference to the drawings, a kind of battery charging and discharging is tested Above-mentioned characteristic, technical characteristic, advantage and its realization method of control system be further described.

Fig. 1 is a kind of a kind of structural schematic diagram of the control system of battery charging and discharging test of the utility model；

Fig. 2 is the circuit diagram of controller in the utility model；

Fig. 3 is the circuit diagram that sub-circuit is inputted in the utility model；

Fig. 4 is the circuit diagram that conversion sub-circuit is communicated in the utility model；

Fig. 5 is the circuit diagram of charging circuit in the utility model；

Fig. 6 is the circuit diagram of discharge circuit in the utility model；

Fig. 7 is a kind of work flow diagram of the control system of battery charging and discharging test of the utility model；

Fig. 8 is the circuit diagram of charging current detecting circuit in the utility model；

Fig. 9 is the circuit diagram of discharge current testing circuit in the utility model；

Figure 10 is the circuit diagram of voltage detecting circuit in the utility model；

Figure 11 is the circuit diagram of first voltage conversion circuit in the utility model；

Figure 12 is the circuit diagram of second voltage conversion circuit in the utility model.

Drawing reference numeral explanation：

Battery J3, charger 2, controller 3, charging circuit 4, discharge circuit 5, load circuit 6, charging current detecting circuit 7, discharge current testing circuit 8, voltage detecting circuit 9, first voltage conversion circuit 10, second voltage conversion circuit 11, data Input circuit 12, input sub-circuit 121, communication conversion sub-circuit 122.

Specific implementation mode

In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, attached drawing will be compareed below Illustrate specific embodiment of the present utility model.It should be evident that the accompanying drawings in the following description is only the one of the utility model A little embodiments for those of ordinary skill in the art without creative efforts, can also be according to these Attached drawing obtains other attached drawings, and obtains other embodiments.

To make simplified form, only schematically shown in each figure with the relevant part of the utility model, they are not Represent its practical structures as product.In addition, so that simplified form is easy to understand, there is identical structure or work(in some figures The component of energy, only symbolically depicts one of those, or only marked one of those.Herein, "one" is not only It indicates " only this ", can also indicate the situation of " more than one ".

As shown in Figure 1, the utility model provides a kind of one embodiment of the control system of battery charging and discharging test, packet Include battery J3, charger 2, controller 3, charging circuit 4, discharge circuit 5, load circuit 6, data input circuit 12：

The controller 3 is electrically connected with data input circuit 12, for receiving pre-set default testing time；

The controller 3, the battery capacity for detecting battery J3, and judge whether the battery capacity is pre- higher than first If electricity is less than the described second default electricity；

The controller 3 is also electrically connected with the discharge circuit 5, detects the battery capacity higher than described for working as It when the first default electricity, is discharged the battery J3 by the discharge circuit 5, until the battery capacity is less than described Second default electricity；And discharge test is carried out to the battery J3 in discharge process；

The controller 3 is also electrically connected with the charging circuit 4, detects the battery capacity less than described for working as It when the second default electricity, is charged to the battery J3 by the discharge circuit 5, until the battery capacity is higher than described First default electricity；And charging measurement is carried out to the battery J3 in charging process；

The controller 3 is additionally operable to record charge-discharge test number；When the charge-discharge test number reaches described default When testing time, stopping charges and discharges the battery J3；Otherwise, continue that the battery J3 is charged and put Electricity.

Preferably, the controller 3, when being additionally operable to detect that the battery capacity is higher than the first default electricity, to described Discharge circuit 5 sends Continuity signal, and sends cut-off signal to the charging circuit 4；The discharge circuit 5 and the controller 3 electrical connections, for according to the Continuity signal received, the discharge circuit 5 to be connected；The charging circuit 4 and the control Device 3 processed is electrically connected, for according to the cut-off signal received, disconnecting the charging circuit 4；The battery J3 respectively with institute Charging circuit 4, the electrical connection of discharge circuit 5 are stated, the controller 3 is additionally operable in the conducting of the discharge circuit 5 and charging electricity Road 4 discharges to the battery J3 when disconnecting, until the battery capacity is less than the described second default electricity.

Preferably, the controller 3, when being additionally operable to detect that the battery capacity is less than the second default electricity, to described Discharge circuit 5 sends cut-off signal, and sends Continuity signal to the charging circuit 4；The discharge circuit 5 and the controller 3 electrical connections are additionally operable to, according to the cut-off signal received, disconnect the discharge circuit 5；The charging circuit 4 with it is described Controller 3 is electrically connected, and is additionally operable to, according to the Continuity signal received, the charging circuit 4 be connected；The battery J3 difference It is electrically connected with the charging circuit 4, discharge circuit 5, the controller 3 is additionally operable to disconnect and described fill in the discharge circuit 5 Circuit 4 charges to the battery J3 when being connected, until the battery capacity is higher than the described first default electricity.

In the present embodiment, as shown in Fig. 2, controller 3 includes microcontroller, crystal oscillating circuit, display circuit, debugging interface circuit Deng；The microcontroller is electrically connected with the data input circuit, and the data input circuit 12 includes input sub-circuit 121, leads to Believe that conversion sub-circuit 122, the input sub-circuit 121 include input port P3, user can be pre- by input port P3 inputs The default testing time being first arranged.

Specifically, as shown in Figure 3, Figure 4, the data input circuit 12 includes input sub-circuit 121, communication conversion son electricity Road 122, the input sub-circuit 121 are electrically connected with the communication conversion sub-circuit 122.The communication conversion sub-circuit 122 wraps Include communication conversion chip U1.

The first port 1 (COM TX) of the input port P3 and 14 electricity of the 14th interface for communicating conversion chip U1 Connection, the first port 1 (COM TX) of the input port P3 is also by protecting device D15 (PESD5V0U1BL) to be grounded；It is described The second port 2 (COM RX) of input port P3 is electrically connected with the 13rd interface 13 of the communication conversion chip U1, described defeated The second port 2 (COM RX) of inbound port P3 is also by protecting device D14 (PESD5V0U1BL) to be grounded.

The 1st interface of the communication conversion chip U1 is electrically connected by capacitance C35 with the interface 3 for communicating conversion chip U1 It connects.The 4th interface of the communication conversion chip U1 is electrically connected by capacitance C36 with the 5th interface of communication conversion chip U1.It is described Communicate the second interface 2 of conversion chip U1, the 6th interface 6 of the communication conversion chip U1, the communication conversion chip U1 16th interface 16 is connect by capacitance C32, capacitance C33, capacitance C34 ground connection, the 16th of the communication conversion chip U1 respectively Mouth 16 also meets the second source 3.3V.The 11st interface 11 (USART2TX) of the communication conversion chip U1 passes through resistance R43 is electrically connected with the 12nd interface 12 of microcontroller STM32F103C8T6, the 12nd interface 12 of the communication conversion chip U1 (USART2RX) it is electrically connected with the 13rd interface 13 of microcontroller STM32F103C8T6 by resistance R44.

The input sub-circuit 121 may be coupled on computer, and user can default test pre-set on computers Number, and the corresponding communication data of default testing time is sent to by the communication by the input sub-circuit 121 and converts core The corresponding communication data of the default testing time is converted into microcontroller by piece U1, the communication conversion chip U1 The data that STM32F103C8T6 can be identified.

The input sub-circuit 121 may be coupled on computer, and user can default test pre-set on computers Number, and the corresponding communication data of default testing time is sent to by the communication by the input sub-circuit 121 and converts core The corresponding communication data of the default testing time is converted into microcontroller by piece U1, the communication conversion chip U1 The data that STM32F103C8T6 can be identified.The controller 3 used in circuit is microcontroller, model STM32F103C8T6, since this chip is primarily due to that its is small, and the comparison used is more, software development is got up convenient.Institute Stating controller page 3 can be replaced using the MCU of bigger, and can be available many pins in this way, cause to waste.

The charging circuit 4, as shown in figure 5, including charge switch sub-circuit, and charging photoelectric coupling sub-circuit.Institute It includes charging photoelectrical coupler U3 to state charging photoelectric coupling sub-circuit, and the first interface 1 of the charging photoelectrical coupler U3 passes through Resistance R20 is connected to controller 3；The second interface 2 of the charging photoelectrical coupler U3 is connected to controller 3 by resistance R21； The second interface 2 of the charging photoelectrical coupler U3 is grounded；The third interface 3 of the charging photoelectrical coupler U3 is grounded；It is described The 4th interface 4 of charging photoelectrical coupler U3 is electrically connected with charge switch sub-circuit.

The charge switch sub-circuit includes the first mos pipe Q1, and the grid G of the first mos pipes Q1 passes sequentially through resistance The 4th interface of R16, resistance R19, resistance R17 and the charging photoelectrical coupler U3 in the charging photoelectric coupling sub-circuit 4 electrical connections.

The drain D of the first mos pipes Q1 is connected to charger 2, and the drain D of the first mos pipes Q1 also passes through resistance R1 is grounded, and the drain D of the first mos pipes Q1 also be electrically connected with one end of resistance R3, the other end of the resistance R3 with it is luminous The anode of diode D2 is electrically connected；The minus earth of the light emitting diode D2.

The drain D of the first mos pipes Q1 also filters sub-circuit by the first RC and is electrically connected with one end of resistance R2, described First RC filtering sub-circuits include resistance R15 and capacitance C8, the first mos pipes Q1 in parallel drain D also with diode D4 Cathode electrical connection；The anode of the diode D4 is electrically connected with one end of the resistance R2, the other end of the resistance R2 with The 4th interface 4 electrical connection of the charging photoelectrical coupler；The anode of the diode D4 also passes sequentially through resistance R19, resistance R17 is electrically connected with the 4th interface 4 of the charging photoelectrical coupler.

The source S of the first mos pipes Q1 passes sequentially through capacitance C9, resistance R18, resistance R17 and the charging photoelectricity coupling 4th interface 4 of clutch is electrically connected, and the drain D of the first mos pipes Q1 is connected to the battery J3.

The source S of the first mos pipes Q1 also by two resistance R4 and R14 in parallel, is electrically connected with the anode of battery J3 It connects.

The charging photoelectrical coupler U3 is for being isolated the charge switch sub-circuit and the controller 3, when the control When device 3 processed sends out turn-on command (conducting voltage of such as 3.3V), the charging photoelectrical coupler U3 conductings, are the first mos Pipe Q1 provides conducting voltage, and the charging circuit 4 is made to be connected.When the controller 3 sends out open command (leading for 3.3V is not provided Be powered pressure) when, the charging photoelectrical coupler U3 does not give the first mos pipes Q1 to provide conducting voltage, and charging circuit 4 is made to be connected It disconnects.

The discharge circuit 5, as shown in fig. 6, including discharge switch sub-circuit, and electric discharge photoelectric coupling sub-circuit.Institute It includes electric discharge photoelectrical coupler U4 to state electric discharge photoelectric coupling sub-circuit, and the first interface 1 of the electric discharge photoelectrical coupler U4 passes through Resistance R27 is connected to controller 3；The second interface 2 of the electric discharge photoelectrical coupler U4 is connected to controller 3 by resistance R28； The second interface 2 of the electric discharge photoelectrical coupler U4 is grounded；The third interface 3 of the electric discharge photoelectrical coupler U4 is grounded；It is described The 4th interfaces 4 of electric discharge photoelectrical coupler U4 are electrically connected with discharge switch sub-circuit.

The discharge switch sub-circuit includes the 2nd mos pipe Q2, and the grid G of the 2nd mos pipes Q2 passes sequentially through resistance The 4th interface of R23, resistance R26, resistance R24 and the electric discharge photoelectrical coupler U4 in the electric discharge photoelectric coupling sub-circuit 4 electrical connections.

The drain D of the 2nd mos pipes Q2 is connected to battery J3, and the drain D of the 2nd mos pipes Q2 also passes through resistance R9 Ground connection, the drain D of the 2nd mos pipes Q2 also filter sub-circuit by the 2nd RC and are electrically connected with one end of resistance R8, and described the Two RC filtering sub-circuits include the resistance R22 and capacitance C10 of parallel connection, and the drain D of the 2nd mos pipes Q2 is also with diode D5's Cathode is electrically connected；The anode of the diode D5 is electrically connected with one end of the resistance R8, the other end of the resistance R8 and institute State the 4th interface 4 electrical connection of electric discharge photoelectrical coupler；The anode of the diode D5 also passes sequentially through resistance R26, resistance R24 It is electrically connected with the 4th interface 4 of the electric discharge photoelectrical coupler.

The source S of the 2nd mos pipes Q2 passes sequentially through capacitance C11, resistance R25, resistance R24 and the discharging light thermocouple 4th interface 4 of clutch is electrically connected, and the source S of the 2nd mos pipes Q2 is also connected to load circuit 6, the 2nd mos pipes Q2 Source S be also electrically connected with one end of resistance R10, the other end of the resistance R10 is electrically connected with the anode of light emitting diode D3. The minus earth of the light emitting diode D3.

The drain D of the 2nd mos pipes Q2 also by two resistance R5 and R13 in parallel, is electrically connected with the anode of battery J3 It connects.

The electric discharge photoelectrical coupler U4 is for being isolated the discharge switch sub-circuit and the controller 3, when the control When device 3 processed sends out open command (conducting voltage of such as 3.3V), the electric discharge photoelectrical coupler U4 is disconnected, and is the 2nd mos Pipe Q2 provides conducting voltage, and the discharge circuit 5 is made to be connected.When the controller 3 sends out open command (leading for 3.3V is not provided Be powered pressure) when, the electric discharge photoelectrical coupler U4 does not give the 2nd mos pipes Q2 to provide conducting voltage, and discharge circuit 5 is made to be connected It disconnects.

Simultaneously as the electric current of the charging circuit 4 and discharge circuit 5 is up to 10A or more, and the electric current of controller 3 is only There are a milliampere rank, the two to differ nearly 1000 times.It is isolated not by the photoelectrical coupler U3 that charges, electric discharge photoelectrical coupler U4 Charging circuit 4, discharge circuit 5 can only be controlled, while controller 3 also being protected not to be damaged.

User can pre-set default testing time according to the testing requirement of battery J3 on microcontroller.Later, monolithic The battery capacity of machine testing battery J3, and judge whether the battery capacity is higher than the first default electricity or pre- less than described second If electricity.The described first default electricity, the second default electricity can be arranged in user on microcontroller.When battery capacity is higher than When the first default electricity, it can be determined that battery capacity is sufficient, when battery capacity is less than the second default electricity, judges Battery capacity is insufficient.

When detecting battery capacity abundance, discharged battery J3 by discharge circuit 5, and to the battery J3 into Row discharge test, until the battery capacity is less than the second default electricity；When detecting battery capacity deficiency, pass through charger 2, charging circuit 4 charges to the battery J3, and carries out charging measurement to the battery J3, until battery capacity height In the described first default electricity；Then microcontroller can detect that battery J3 is sufficient again, discharge battery J3, to realize cycle Test, achievees the purpose that test automatically.

In the beginning of test, microcontroller is possible to detect that the battery capacity of battery J3 is in the first default electricity and described So that microcontroller can not determine bottom and should still discharge battery J3 chargings between second default electricity, therefore opened in test When the beginning, it can charge or discharge with manual control, after charging complete or electric discharge completion, you can realize above-mentioned loop test. Alternatively, if user can be arranged on microcontroller detects that the electricity of battery J3 is in the first default electricity and described second and presets It is unified that battery J3 discharge or charge to battery J3 when between electricity, when battery J3 charge or discharges are completed Afterwards, you can realize above-mentioned loop test.

After each charge-discharge test terminates, microcontroller can record charge-discharge test number, when the charge-discharge test When number reaches the default testing time, stopping charges and discharges the battery J3；

By the above-mentioned charge-discharge test to battery J3, may be implemented, to the automatic test of battery J3, to save manpower Resource, simultaneously because test process is controlled by microcontroller entirely, avoid battery J3 electric leakages to staff damage can Energy.

The utility model provides a kind of one embodiment of the control system of battery charging and discharging test, including battery J3, Charger 2, controller 3, charging circuit 4, discharge circuit 5, load circuit 6, charging current detecting circuit 7, discharge current detection Circuit 8, voltage detecting circuit 9, first voltage conversion circuit 10, second voltage conversion circuit 11.

The controller 3 is electrically connected with data input circuit 12, for receiving pre-set default testing time；

It is provided with input port on the controller, for receiving pre-set default testing time；

The controller 3 is electrically connected, the battery capacity for detecting battery J3 with the battery J3, and judges the electricity Whether pond electricity is higher than the first default electricity or less than the described second default electricity；

The controller 3 is also electrically connected with the discharge circuit 5, detects the battery capacity higher than described for working as When the first default electricity, discharged the battery J3 by the discharge circuit 5, and electric discharge survey is carried out to the battery J3 Examination, until the battery capacity is less than the second default electricity；

The controller 3 is also electrically connected with the charging circuit 4, detects the battery capacity less than described for working as When the second default electricity, charged to the battery J3 by the charger 2, the discharge circuit 5, and to the battery J3 carries out charging measurement, until the battery capacity is higher than the described first default electricity.

The controller 3 is additionally operable to record charge-discharge test number；When the charge-discharge test number reaches described default When testing time, stopping charges and discharges the battery J3；Otherwise, continue that the battery J3 is charged and put Electricity.

The controller 3 is electrically connected with the charging current detecting circuit 7, the voltage detecting circuit 9, also uses respectively In when the battery J3 is in charged state, battery charge is detected by charging current detecting circuit 7, is examined by voltage Slowdown monitoring circuit 9 detects cell voltage, when the battery charge is less than the first predetermined current and the cell voltage is higher than first When predeterminated voltage, judge that the battery capacity is higher than the described first default electricity；

The controller 3 is also electrically connected with the discharge current testing circuit 8, for being in electric discharge as the battery J3 When state, battery charge is detected by discharge current testing circuit 8, battery electricity is detected by the voltage detecting circuit 9 Pressure judges institute when the battery charge is less than the second predetermined current and the cell voltage is less than the second predeterminated voltage It states battery capacity and is less than the described second default electricity.

The controller 3, when being additionally operable to detect that the battery capacity is higher than the first default electricity, to the discharge circuit 5 send Continuity signal, and send cut-off signal to the charging circuit 4；

The discharge circuit 5 is electrically connected with the controller 3, for according to the Continuity signal received, institute to be connected State discharge circuit 5；

The charging circuit 4 is electrically connected with the controller 3, for according to the cut-off signal received, disconnecting institute State charging circuit 4；

The battery J3 is electrically connected with the charging circuit 4, discharge circuit 5 respectively, and the controller 3 is additionally operable to described It discharges the battery J3 when discharge circuit 5 is connected and the charging circuit 4 disconnects, until the battery capacity is less than institute State the second default electricity；

The controller 3, when being additionally operable to detect that the battery capacity is less than the second default electricity, to the discharge circuit 5 send cut-off signal, and send Continuity signal to the charging circuit 4；

The discharge circuit 5 is electrically connected with the controller 3, is additionally operable to, according to the cut-off signal received, disconnect The discharge circuit 5；

The charging circuit 4 is electrically connected with the controller 3, is additionally operable to according to the Continuity signal received, conducting The charging circuit 4；

The battery J3 is electrically connected with the charging circuit 4, discharge circuit 5 respectively, and the controller 3 is additionally operable to described It charges to the battery J3 when discharge circuit 5 disconnects and the charging circuit 4 is connected, until the battery capacity is higher than institute State the first default electricity；

First voltage conversion circuit 10, for first voltage to be converted into second voltage, the second voltage is as first Power supply；

Second voltage conversion circuit 11 is electrically connected with the first voltage conversion circuit 10, is used for the second voltage It is converted into tertiary voltage, the tertiary voltage is as second source.

Specifically, the controller 3 respectively with the data input circuit 12, the charging circuit 4, the discharge circuit 5, charging current detecting circuit 7, discharge current testing circuit 8, voltage detecting circuit 9 are electrically connected；

The battery J3 respectively with the charger 2, the load circuit 6, the charging circuit 4, the discharge circuit 5, the voltage detecting circuit 9 is electrically connected；

The charging circuit detection circuit 7 is also electrically connected with the charging circuit 4；The discharge current testing circuit 8 is also It is electrically connected with electric discharge electricity circuit 5；

The charger 3 is electrically connected with the charging circuit 4；The load circuit 6 is electrically connected with the discharge circuit 7；

The first voltage conversion circuit 10 is electric with the charging current detecting circuit 7, discharge current detection respectively Road 8 is electrically connected；

The second voltage conversion circuit 11 is also electrically connected with the controller 2, the data input circuit 12.

In the present embodiment, workflow such as Fig. 7 of system includes：

First voltage is converted into second voltage by S10 first voltages conversion circuit 10, and the first power supply is provided for circuit；

The second voltage is converted into tertiary voltage by S11 second voltages conversion circuit 11, and second source is provided for circuit；

S20 pre-sets default testing time in controller 3；

Controller 3 described in S30 detects the battery capacity of battery in real time, and judges whether the battery capacity is pre- higher than first If electricity is less than the described second default electricity；

Preferably, for S301 when the battery J3 is in charged state, the controller 3 passes through charging current detecting circuit 7 detection battery charges, cell voltage is detected by voltage detecting circuit 9, when the battery charge is pre- less than first If electric current and the cell voltage are higher than the first predeterminated voltage, judge that the battery capacity is higher than the described first default electricity； For S302 when the battery is in discharge condition, the controller 3 detects battery charging electricity by discharge current testing circuit 8 Stream detects cell voltage by voltage detecting circuit 9, when the battery discharge current is less than the second predetermined current and the battery When voltage is less than the second predeterminated voltage, judge that the battery capacity is less than the described second default electricity；

S401 is when the controller 3 detects that the battery capacity is higher than the first default electricity, to the discharge circuit 5 Continuity signal is sent, and cut-off signal is sent to the charging circuit 4；

The discharge circuit 5 is connected according to the Continuity signal received in discharge circuit 5 described in S402；

Charging circuit 4 described in S403 disconnects the charging circuit 4 according to the cut-off signal received；

Controller 3 described in S404 discharges to the battery J3, until the battery capacity is less than the second default electricity；

S501 is sent when the controller 3 detects that the battery capacity is less than the second default electricity to discharge circuit 5 Cut-off signal, and send Continuity signal to charging circuit 4；

Discharge circuit 5 described in S502 disconnects the discharge circuit 5 according to the cut-off signal received；

The charging circuit 4 is connected according to the Continuity signal received in charging circuit 4 described in S503；

Controller 3 described in S504 charges to the battery J3, until the battery capacity is default higher than described first Electricity；

Controller 3 described in S60 records charge-discharge test number, and judges whether the charge-discharge test number reaches described Default testing time；

S70 is if so, stop charging and discharging the battery J3；Otherwise, return to step S30.

Specifically, the controller 3 in the utility model can be microcontroller, user can be according to the test need of battery J3 It asks, default testing time is pre-set on microcontroller.Later, the battery capacity of monolithic machine testing battery, and judge the electricity Whether pond electricity is higher than the first default electricity or less than the described second default electricity.User can be arranged described on microcontroller One default electricity, the second default electricity.When battery capacity is higher than the first default electricity, it can be determined that battery capacity Abundance judges battery capacity deficiency when battery capacity is less than the second default electricity.

When detecting battery capacity abundance, discharged battery by discharge circuit, and the battery is put Electrical testing, until the battery capacity is less than the second default electricity；When detecting battery capacity deficiency, pass through charging circuit pair The battery J3 charges, and carries out charging measurement to the battery J3, until the battery capacity is pre- higher than described first If electricity.Then microcontroller can detect battery abundance again, discharge battery J3, to realize loop test, reach automatic The purpose of test.

In the beginning of test, microcontroller is possible to detect that the battery capacity of battery J3 is in the first default electricity and described Between second default electricity, so that microcontroller can not determine bottom and should battery be charged or be discharged.Therefore it is opened in test When the beginning, it can charge or discharge with manual control, after charging complete or electric discharge completion, you can realize above-mentioned loop test； Alternatively, if user can be arranged on microcontroller detects that the battery capacity of battery J3 is in the first default electricity and described second It is unified that battery is discharged or charged the battery when between default electricity, after the completion of battery charge or discharge, Above-mentioned loop test can be realized.

After each charge-discharge test terminates, microcontroller can record charge-discharge test number, when the charge-discharge test When number reaches the default testing time, stopping charges and discharges the battery J3.

By the above-mentioned charge-discharge test to battery, the automatic test to battery J3 may be implemented, save manpower money Source avoids battery J3 electric leakages and is damaged to staff simultaneously because test process is controlled by microcontroller entirely.

When battery J3 is in charged state, battery charge can reach normal charging current value, while electricity Cell voltage can constantly be got higher with the progress of charging；When battery J3 is full of, due to limited battery capacity, battery charge It can drastically decline, reach a very low level, cell voltage can be maintained at maximum value.Such as the battery with battery J3 to be tested Capacity is 40Ah, operating voltage 48V, when being charged using the electric current of 10A, can detect that battery charge is 10A, When battery J3 is fully charged, it can detect that battery charge can drop sharply to 0.5A, even lower, cell voltage can reach It is even more than 48V to 48V.Therefore, controller 3 only needs to detect that battery charge is less than the first predetermined current and the electricity When cell voltage is higher than the first predeterminated voltage, so that it may which to judge that the battery J3 fills with electricity, i.e., the described battery capacity is higher than institute State the first default electricity.

When battery is in discharge condition, battery discharge current can reach normal discharge current value, while battery Voltage can constantly be lower with the progress of charging；When battery capacity deficiency, battery charge can drastically decline, and reach one A very low level, cell voltage can be reduced to minimum value.For example with the battery capacity of battery J3 to be tested be 40Ah, work electricity Pressure is 48V, in battery J3 regular pictures, can detect that battery discharge current is 10A, can be with when battery J3 is discharged Detect that battery charge can drop sharply to 0.3A hereinafter, cell voltage is reduced to minimum.Therefore, controller only needs When detecting that battery discharge current is less than the second predetermined current and the cell voltage is less than the second predeterminated voltage, so that it may to judge The battery J3 discharge offs judge that the battery capacity is less than the described second default electricity.

Since the electric current that controller 3 and each detection circuit use is all smaller, for example the work that controller uses is electric Pressure is 3.3V, and the detection circuit operating voltage for detecting battery charge and battery discharge current is 5V, it is therefore desirable to be had 48V voltages can be converted to 5V by the circuit of two conversion voltage, first voltage conversion circuit provided by the utility model, the 5V can be converted to 3.3V by two voltage conversion circuits, and operating voltage is provided for each chip modules in circuit.

Discharge circuit includes discharge switch sub-circuit, and electric discharge photoelectric coupling sub-circuit.When the controller detects When the battery capacity is higher than the first default electricity, Continuity signal is sent to the discharge circuit, and send out to the charging circuit Send cut-off signal；After electric discharge photoelectric coupling sub-circuit in discharge circuit receives Continuity signal, electric discharge photoelectric coupling can be connected Sub-circuit provides conducting voltage for discharge switch sub-circuit, and discharge switch sub-circuit is made to be connected, to which the electric discharge electricity be connected Road.Meanwhile after the charging photoelectric coupling sub-circuit in the charging circuit receives cut-off signal, charging photoelectric coupling is disconnected Circuit does not provide conducting voltage for charge switch sub-circuit, to disconnect the charging circuit.The controller is to described later Battery J3 discharges, until the battery capacity is less than the second default electricity.

Likewise, the charging circuit also includes charge switch sub-circuit, and charging photoelectric coupling sub-circuit.When described When controller detects that the battery capacity is less than the second default electricity, cut-off signal is sent to discharge circuit, and electric to charging Road sends Continuity signal；After charging photoelectric coupling sub-circuit in charging circuit receives Continuity signal, electric discharge photoelectricity can be connected Sub-circuit is coupled, conducting voltage is provided for charge switch sub-circuit, so that charge switch sub-circuit is connected, to which the charging be connected Circuit.After the electric discharge photoelectric coupling sub-circuit in discharge circuit receives the cut-off signal simultaneously, the electric discharge photoelectricity is disconnected Coupling sub-circuit, the conducting voltage that the discharge switch sub-circuit is provided due to having lacked the electric discharge photoelectric coupling sub-circuit, It is then off, to make the discharge circuit disconnect.The controller charges to the battery J3 later, until The battery capacity is higher than the described first default electricity.

The charging current detecting circuit 7, as shown in figure 8, including charging current detection chip U7, the charging current inspection The working power end V+ for surveying chip U7 is electrically connected with the first power supply 5V, the working power end V+ of the charging current detection chip U7 Also it is grounded by capacitance C6；The ground terminal GND ground connection of the charging current detection chip U7；The charging current detection chip U7 Detection hot end VIN+ be electrically connected with the source S of the first mos pipes Q1 in charging circuit 4, the charging current detection chip The anode of the detection cold end VIN- and the battery J3 of U7 are electrically connected；The output end of the charging current detection chip U7 OUT is grounded by resistance R11, and the output end OUT of the charging current detection chip U7 is also grounded by capacitance C4, the charging The output end OUT of current detecting chip U7 is also electrically connected with the 14th interface 14 of microcontroller in the controller 3, the charging Current detection circuit 7 can detect the electric current of charging circuit 4, and controller 3 receives the charging current detection chip U7 outputs Current signal after, it may be possible to judge whether charge or discharge finishes battery J3.

The discharge current testing circuit 8, as shown in figure 9, including discharge current detection chip U8, the discharge current inspection The working power end V+ for surveying chip U8 is electrically connected with the first power supply 5V, the working power end V+ of the discharge current detection chip U8 Also it is grounded by capacitance C7；The ground terminal of the charging current detection chip U8 is grounded；The discharge current detection chip U8's Detection hot end VIN+ is electrically connected with the anode of the battery J3, the detection cold end of the discharge current detection chip U8 VIN- is electrically connected with the drain D of the 2nd mos pipes Q2 in discharge circuit 5；The output end OUT of the discharge current detection chip U8 is logical Resistance R12 ground connection is crossed, the output end OUT of the discharge current detection chip U8 is also grounded by capacitance C5, the discharge current The output end OUT of detection chip U8 is also electrically connected with the 15th interface 15 of microcontroller in the controller 3, the discharge current Detection circuit is capable of the electric current of detection circuit, and controller 3 receives the current signal of the discharge current detection chip U8 outputs Afterwards, it may be possible to judge whether charge or discharge finishes battery J3.

The battery voltage detection circuit 9, as shown in Figure 10, including one end of resistance R6, the resistance R6 and battery J3 Anode electrical connection；The other end of the resistance R6 is grounded by resistance R7, and the other end of the resistance R6 is with diode D7's Cathode is electrically connected, the plus earth of the diode D7；The other end of the resistance R6 is also by protecting device PESD5V0U1BL Ground connection；The other end of the resistance R6 is also connected to the 11st interface connection of microcontroller in the controller 3.

In charging process, the charging current detection chip in the charging current detecting circuit 7 can detect in parallel The electric current of resistance R4 and the both ends resistance R14, when battery J3 chargings are full of soon, the electric current of charging circuit 4 will be greatly reduced, i.e., The charging current detection chip detects that parallel resistance R4 and the electric current at the both ends resistance R14 are greatly reduced, and by curent change The case where feed back to controller 3, controller 3 can also detect the voltage condition of battery J3 by voltage detecting circuit 9, work as control Device 3 detects battery charge less than the first predetermined current (such as 0.3A) and the cell voltage is higher than the first predeterminated voltage When (such as 48V), judge that the battery capacity is higher than the described first default electricity, i.e. battery capacity fills with.

In discharge process, the discharge current detection chip in the discharge current testing circuit 8 can detect in parallel The electric current of resistance R4 and the both ends resistance R14, when battery capacity discharges soon, the electric current of charging circuit 4 will be greatly reduced, i.e. institute It states discharge current detection chip and detects that parallel resistance R5 and the electric current at the both ends resistance R13 are greatly reduced, and by curent change Situation feeds back to controller 3, and controller 3 can also be detected the voltage condition of battery J3 by voltage detecting circuit 9, work as controller Detect that battery discharge current is less than the second predetermined current (such as 0.3A) and the cell voltage is less than the second predeterminated voltage (ratio Such as 5V) when, judge that the battery capacity is less than the described second default electricity, i.e. battery capacity has discharged.

First voltage conversion circuit 10, as shown in figure 11, including a first voltage that 48V voltages can be converted into 5V The 6th interface 6 of conversion chip U5, the first voltage conversion chip U5 are grounded；The tenth of the first voltage conversion chip U5 Interface 10 is grounded by capacitance C15.

The 11st interface 11 of the first voltage conversion chip U5 is also electrically connected with one end of resistance R29, the resistance The other end of R29 is also grounded by resistance R47, and the other end of the resistance R29 is also electrically connected with one end of switch J1, described to open The other end for closing J1 is electrically connected by fuse FUSE1 with battery J3, the moon of the other end of the switch J1 also with diode D10 Pole is electrically connected, the plus earth of the diode D10.

The 13rd interface 13 of the first voltage conversion chip U5 is electrically connected with the cathode of diode D6, the diode The anode of D6 is electrically connected by fuse with battery J3, and the 13rd interface 13 of the first voltage conversion chip U5 also passes through electricity Hold C18 ground connection, the 13rd interface 13 of the first voltage conversion chip U5 is also grounded by capacitance C19.

The 5th interface 5 of the first voltage conversion chip U5 is grounded, and the 15th of the first voltage conversion chip U5 the Interface 15 is grounded, and the 12nd interface 12 of the first voltage conversion chip U5 is grounded by capacitance C12；The first voltage turns The third interface 3 for changing chip U5 is electrically connected by capacitance C16 with the cathode of diode D9；The first voltage conversion chip U5's 4th interface 4 is electrically connected with the anode of the diode D9；The second interface 2 and described two of the first voltage conversion chip U5 The cathode of pole pipe D9 is electrically connected, and the second interface 2 of the first voltage conversion chip U5 also passes sequentially through resistance R37, capacitance C17 Ground connection, the second interface 2 of the first voltage conversion chip U5 are also electrically connected with one end of inductance L1, and the inductance L1's is another End is electrically connected with second voltage conversion circuit 11, and the other end of the inductance L1 is also turned by resistance R34 and the first voltage The 9th interface 9 electrical connection of chip U5 is changed, the other end of the inductance L1 also passes sequentially through resistance R34, resistance R35 ground connection；Institute The other end for stating inductance L1 is also electrically connected with one end of resistance R36, the other end of the resistance R36 by capacitance C13 in parallel, Capacitance C20 ground connection.

In the first voltage conversion chip U5 of 48V~5V, switch J1 is not as we commonly switch identically controlled electricity (such as fluorescent lamp has electric current by lower switch and passes through, and lamp is opened for the switching of stream；Current vanishes are pressed again, lamp is closed).But it controls Make the enabled foot (Enable) of the first voltage conversion chip.By lower switch, the enabled foot level of chip is raised, and chip is opened Beginning work, then switch is resetted, chip enables foot level and is pulled low, and chip is stopped.Due to being manually pressed by switch, machinery Shake is inevitable, if directly controlling the current switching in circuit, making the electric current of entire circuit, there are one larger Fluctuation, causes the damage of chip.And by enabled foot control system, then it can substantially reduce the risk of wafer damage.

In the first voltage conversion chip U5 of 48V~5V, switch J1 is not as we commonly switch identically controlled electricity (such as fluorescent lamp has electric current by lower switch and passes through, and lamp is opened for the switching of stream；Current vanishes are pressed again, lamp is closed).But it controls Make the enabled foot (Enable) of the first voltage conversion chip U5.By lower switch, the enabled foot level of chip is raised, chip It starts to work, then switch is resetted, first voltage conversion chip U5 enables foot level and is pulled low, and chip is stopped.Due to hand Dynamic to press lower switch, mechanical shaking is inevitable, if directly controlling the current switching in circuit, can make entire circuit There are one larger fluctuations for electric current, cause the damage of first voltage conversion chip U5.And by enabled foot control system, then it can be big The big risk for reducing the U5 damages of first voltage conversion chip.

Second voltage conversion circuit 11, as shown in figure 12, including second electricity that 5V voltages can be converted into 3.3V Press conversion chip U2 (SPX3819M5-L/TR), first interface 1 and the first voltage of the second voltage conversion chip U2 The other end electrical connection of inductance L1, the first interface 1 of the second voltage conversion chip U2 also pass through parallel connection in conversion circuit 10 Capacitance C2, capacitance C14 ground connection；The second interface 2 of the second voltage conversion chip U2 is grounded；The second voltage converts core The third interface 3 of piece U2 is connected to the first voltage conversion circuit 10 by resistance R32；The second voltage conversion chip U2 The 4th interface 4 be grounded by resistance R31；The 5th interface 5 of the second voltage conversion chip U2 pass sequentially through resistance R30, Resistance R31 ground connection, the 5th interface 5 of the second voltage conversion chip U2 are also grounded by capacitance C1, and the second voltage turns The 5th interface 5 for changing chip U2 is also grounded by capacitance C3, and the 5th interface 5 of the second voltage conversion chip U2 is gone back and resistance One end of R33 is electrically connected, and the other end of the resistance R33 is electrically connected with the anode of Light-emitting diode LED 1, the light-emitting diodes The minus earth of pipe LED1, the voltage of the 5th interface 5 output 3.3V of the second voltage conversion chip U2, makes for late-class circuit With.

A kind of control system of battery charging and discharging test provided by the utility model, the invention institute submitted on the same day with another The control method and system of a kind of battery charging and discharging test provided, belong to same technical solution.

It should be noted that above-described embodiment can be freely combined as needed.The above is only the utility model Preferred embodiment, it is noted that for those skilled in the art, do not departing from the utility model principle Under the premise of, several improvements and modifications can also be made, these improvements and modifications also should be regarded as the scope of protection of the utility model.

Claims (9)

1. a kind of control system of battery charging and discharging test, including：Battery, charger, controller, charging circuit, discharge circuit, Load circuit, charging current detecting circuit, discharge current testing circuit, voltage detecting circuit, data input circuit, first voltage Conversion circuit, second voltage conversion circuit, it is characterised in that：

The controller is examined with the data input circuit, the charging circuit, the discharge circuit, the charging current respectively Slowdown monitoring circuit, the discharge current testing circuit, voltage detecting circuit electrical connection；

The battery respectively with the charger, the load circuit, the charging circuit, the discharge circuit, the voltage Detection circuit is electrically connected；

The charging circuit detection circuit is also electrically connected with the charging circuit；The discharge current testing circuit is also put with described Circuit is electrically connected；

The charger is electrically connected with the charging circuit；The load circuit is electrically connected with the discharge circuit；

The first voltage conversion circuit is electrically connected with the charging current detecting circuit, the discharge current testing circuit respectively It connects；

The second voltage conversion circuit is also electrically connected with the controller, the data input circuit.

2. a kind of control system of battery charging and discharging test according to claim 1, it is characterised in that：

The data input circuit includes input sub-circuit, communication conversion sub-circuit, and the input sub-circuit turns with described communicate Change sub-circuit electrical connection；

The input sub-circuit includes input port P3, and the communication conversion sub-circuit includes communication conversion chip U1；

The first port of the input port P3 is electrically connected with the 14th interface of the communication conversion chip U1, the input terminal The second port of mouth P3 is electrically connected with the 13rd interface of the communication conversion chip U1；The first end of the input port P3 Mouth, second port are connected to protection device respectively；

The 11st interface of the communication conversion chip U1 is electrically connected with the controller, and the tenth of the communication conversion chip U1 the Two interfaces are electrically connected with the controller.

3. a kind of control system of battery charging and discharging test according to claim 1, it is characterised in that：

The charging circuit includes charge switch sub-circuit, charging photoelectric coupling sub-circuit；

The charging photoelectric coupling sub-circuit includes charging photoelectrical coupler U3, the first interface of the charging photoelectrical coupler U3 It is connected to the controller by resistance R20；The second interface of the charging photoelectrical coupler U3 is connected to institute by resistance R21 State controller；The second interface of the charging photoelectrical coupler U3 is also grounded；The third interface of the charging photoelectrical coupler U3 Ground connection；

The charge switch sub-circuit includes the first mos pipe Q1, and the grid of the first mos pipes Q1 passes through resistance R16 and resistance One end of R19 is electrically connected, and the other end of the resistance R19 passes sequentially through resistance R18, capacitance C9 and the first mos pipes Q1's Source electrode is electrically connected, and the source electrode of the first mos pipes Q1 is connected to the battery J3；The other end of the resistance R19 also passes through electricity Resistance R17 is electrically connected with the 4th interface of the charging photoelectrical coupler U3；

The 4th interface of the charging photoelectrical coupler U3 also be electrically connected with one end of resistance R2, the other end of the resistance R2 and The anode of diode D4 is electrically connected, and the cathode of the diode D4 is electrically connected with the drain electrode of the first mos pipes Q1；Described first The drain electrode of mos pipes Q1 also filters sub-circuit by the first RC and is electrically connected with the other end of the resistance R2；The first mos pipes Q1 Drain electrode also connect the charger.

4. a kind of control system of battery charging and discharging test according to claim 1, it is characterised in that：

The discharge circuit includes discharge switch sub-circuit, electric discharge photoelectric coupling sub-circuit；

The electric discharge photoelectric coupling sub-circuit includes electric discharge photoelectrical coupler U4, the first interface of the electric discharge photoelectrical coupler U4 It is connected to the controller by resistance R27；The second interface of the electric discharge photoelectrical coupler U4 is connected to institute by resistance R28 State controller；The second interface of the electric discharge photoelectrical coupler U4 is also grounded；The third interface of the electric discharge photoelectrical coupler U4 Ground connection；

The discharge switch sub-circuit includes the 2nd mos pipe Q2, and the grid of the 2nd mos pipes Q2 passes through resistance R23 and resistance One end of R26 is electrically connected, and the other end of the resistance R26 passes sequentially through resistance R25, capacitance C11 and the 2nd mos pipes Q2's Source electrode is electrically connected, and the source electrode of the 2nd mos pipes Q2 is connected to the load circuit；The other end of the resistance R26 also passes through Resistance R24 is electrically connected with the 4th interface of the electric discharge photoelectrical coupler U4；

The 4th interface of the electric discharge photoelectrical coupler U4 also be electrically connected with one end of resistance R8, the other end of the resistance R8 and The anode of diode D5 is electrically connected, and the cathode of the diode D5 is electrically connected with the drain electrode of the 2nd mos pipes Q2；Described second The drain electrode of mos pipes Q2 also filters sub-circuit by the 2nd RC and is electrically connected with the other end of the resistance R8；The 2nd mos pipes Q2 Drain electrode also meet the battery J3.

5. a kind of control system of battery charging and discharging test according to claim 1, it is characterised in that：

The charging current detecting circuit includes charging current detection chip U7, the work electricity of the charging current detection chip U7 Source is electrically connected with the first power supply 5V；

The detection hot end of the charging current detection chip U7 is electrically connected with the charging circuit, the charging current detection The detection cold end of chip U7 is electrically connected with the anode of the battery J3；The output end of the charging current detection chip U7 with The controller electrical connection.

6. a kind of control system of battery charging and discharging test according to claim 1, it is characterised in that：

The discharge current testing circuit includes discharge current detection chip U8, the work electricity of the discharge current detection chip U8 Source is electrically connected with the first power supply 5V；

The detection hot end of the discharge current detection chip U8 is electrically connected with the anode of the battery J3, the discharge current The detection cold end of detection chip U8 is electrically connected with the discharge circuit；The output end of the discharge current detection chip U8 is also It is electrically connected with the controller.

7. a kind of control system of battery charging and discharging test according to claim 1, it is characterised in that：

The voltage detecting circuit includes resistance R6, resistance R7, diode D7, protection device D8；

One end of the resistance R6 is electrically connected with the anode of the battery J3, anode and the voltage detecting circuit electricity of the battery J3 Connection；The other end of the resistance R6 is grounded by resistance R7, and the cathode of the other end and diode D7 of the resistance R6 is electrically connected It connects, the plus earth of the diode D7；The other end of the resistance R6 is also by protecting device D8 ground connection；The resistance R6's The other end is also connected to the controller.

8. a kind of control system of battery charging and discharging test according to claim 1, it is characterised in that：

The first voltage conversion circuit includes first voltage conversion chip U5；

The 11st interface of the first voltage conversion chip U5 is also electrically connected with one end of resistance R29, and the resistance R29's is another One end is also grounded by resistance R47, and the other end of the resistance R29 is also electrically connected with one end of switch J1, the switch J1's The other end is electrically connected by fuse FUSE1 with the battery J3；

The 13rd interface of the first voltage conversion chip U5 is electrically connected with the cathode of diode D6, the sun of the diode D6 Pole is electrically connected by fuse FUSE1 with the battery J3；

The third interface of the first voltage conversion chip U5 is electrically connected by capacitance C16 with the cathode of diode D9；Described The 4th interface of one voltage conversion chip U5 is electrically connected with the anode of the diode D9；

The second interface of the first voltage conversion chip U5 is electrically connected with the cathode of the diode D9, and the first voltage turns The second interface for changing chip U5 is also electrically connected with one end of inductance L1, the other end of the inductance L1 export the first power supply and with Second voltage conversion circuit is electrically connected, and the other end of the inductance L1 also passes through resistance R34 and the first voltage conversion chip The 9th interface of U5 is electrically connected.

9. a kind of control system of battery charging and discharging test according to claim 1, it is characterised in that：

Second voltage conversion circuit includes second voltage conversion chip U2；

The first interface of the second voltage conversion chip U2 is electrically connected with the first voltage conversion circuit；

The third interface of the second voltage conversion chip U2 is connected to the first voltage conversion circuit by resistance R32；

The 4th interface of the second voltage conversion chip U2 is grounded by resistance R31；The second voltage conversion chip U2's 4th interface is electrically connected by resistance R30 with the 5th interface of the second voltage conversion chip U2；

The 5th interface of the second voltage conversion chip U2 also passes sequentially through resistance R33, Light-emitting diode LED 1 is grounded, described The 5th interface of second voltage conversion chip U2 exports second source.