CN206583938U - Test switching circuit for component capacitive equipment - Google Patents

Test switching circuit for component capacitive equipment Download PDF

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Publication number
CN206583938U
CN206583938U CN201720203572.9U CN201720203572U CN206583938U CN 206583938 U CN206583938 U CN 206583938U CN 201720203572 U CN201720203572 U CN 201720203572U CN 206583938 U CN206583938 U CN 206583938U
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current
switch
switching
switching switch
measurement
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CN201720203572.9U
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葛慧阳
朱志聪
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Huizhou Dingli Intelligent Technology Co Ltd
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Huizhou Dingli Intelligent Technology Co Ltd
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Abstract

The utility model discloses a kind of test switching circuit for component capacitive equipment, including positive pole current terminal, cathodal current end, shunt positive voltage terminal, shunt negative voltage side, shunt negative current end, shunt positive current end, measure current terminal, measure voltage end, measure common port and switching switch, the positive pole current terminal is connected by switching switch with shunting positive current end or measurement current terminal, the cathodal current end is connected by switching switch with shunting negative current end or measurement common port, the measurement common port is also connected with shunting negative voltage side, the measurement voltage end is connected with shunting positive voltage terminal, the positive pole current terminal, cathodal current end is used to be connected with equipment to be corrected.The utility model connects equipment to be calibrated, test table, current divider, discharge power supply, is switched by testing each group in switching circuit, realizes being switched fast between different tests, effectively increase the calibration efficiency of component capacitive equipment.

Description

Test switching circuit for component capacitive equipment
Technical field
The utility model is related to the component capacitive equipment technical field of battery, more particularly to a kind of for component capacitive equipment Test switching circuit.
Background technology
Component capacitive equipment is after the completion of production, it is necessary to be calibrated to ensure its discharge and recharge to each charge/discharge unit Stream, voltage reach required precision.The size of current of the corresponding component capacitive equipment of different capabilities battery is different, and the electric current used is surveyed Measuring appratus or mode are also different:High current is typically measured using current divider mode, and low current is typically directly direct using universal meter Measurement, two kinds of metering systems change necessary manual modification wiring, limit the raising of calibration efficiency.
Utility model content
Main purpose of the present utility model is to provide a kind of test switching circuit for component capacitive equipment, it is intended to be Different test equipments in component capacitive equipment calibration test provide the function of being switched fast connection.
To achieve the above object, the utility model provides a kind of test switching circuit for component capacitive equipment, including Switching switch, for be connected with equipment to be corrected positive pole current terminal/cathodal current end, for the shunting that is connected with current divider just Voltage end/shunting negative voltage side/shunting negative current end/shunting positive current end, measurement current terminal/survey for being connected with measurement table Voltage end/measurement common port is measured, the positive pole current terminal is connected by switching switch with shunting positive current end or measurement current terminal, The cathodal current end is connected by switching switch with shunting negative current end or measurement common port, and the measurement common port is also with dividing Negative voltage side connection is flowed, the measurement voltage end is connected with shunting positive voltage terminal.It is straight that the test switching circuit can measure table Connect measurement electric current and measure switching between two kinds of method of testings of electric current indirectly by current divider.
Further, the shunting negative current end is connected by switching switch K1A with cathodal current end, and the measurement is public End is connected by switching switch K1C with cathodal current end, and the positive pole current terminal is by switching switch K1B and shunting positive current end Or measurement current terminal connection, the switching switch K1A, switching switch K1B and switching switch K1C are group switch K1, when a group switch When K1 states change, all switching on off states in group switch K1 change.The test switching circuit is tool Body realizes a kind of circuit of handoff functionality, and switching switch K1A, switching switch K1B, switching switch K1C are set to one group and can simplified Control mode, only needs a control signal or control action that the change of on off state can be achieved during control.
Further, described group of switch K1 on-off circuit state be when positive pole current terminal with measure current terminal be connected when, The cathodal current end is connected with measurement common port.
Further, described group of switch K1 on-off circuit state is when positive pole current terminal is connected with shunting positive current end When, the cathodal current end is connected with shunting negative current end.
Further, the test switching circuit also includes cathode voltage end, negative electricity pressure side, constant pressure resistance, group switch K2, described group of switch K2 include switching switch K2A, switching switch K2B, switching switch K2C, switching switch K2D, switching switch K2E and switching switch K2F, the positive pole current terminal is connected by switching switch K2A with switching switch K1B or constant pressure resistance, institute State cathodal current end and be connected by switching switch K2B with switching switch K1A, switching switch K1C, or it is another with constant pressure resistance End connection;The cathode voltage end is connected by switching switch K2C with positive pole current terminal or switching switch K2E, the negative electricity Pressure side is connected by switching switch K2D with cathodal current end or switching switch K2F, and the measurement voltage end is switched by switching K2E is connected with shunting positive voltage terminal or switching switch K2C, and the measurement common port is by switching switch K2F and shunting negative current End or switching switch K2D connections.The test switching circuit can carry out the switching between above-mentioned current test method and voltage tester.
Further, when a group switch K2 states change, all switchings switch K2 states in group switch are sent out Changing.Will switching switch K2A, switching switch K2B to switching switch K2F be set to one group can simplify control mode, during control It is the change that on off state can be achieved to need a control signal or control action.
Further, described group of switch K2 on-off circuit state is when positive pole current terminal is connected with constant pressure resistance, then to bear Electrode current end is also connected with constant pressure resistance, and cathode voltage end is connected with measurement voltage end, and negative electricity pressure side connects with measurement common port Connect.
Further, the test switching circuit also includes switching switch K3A, positive discharge end, negative discharge end, described Switching switch K3A is connected with switching switch K2B, positive discharge end, negative discharge end respectively, the positive discharge end also with switching Switch K1A, switching switch K1C connections.The test switching circuit also realizes the switching of discharging function, quickly can be examined in voltage Switch between survey, checking of great current, low current detection, discharge test, in the calibration process for effectively increasing component capacitive equipment Efficiency.
Further, the switching switch is single-pole double-throw relay.Test switching is used as by single-pole double-throw relay The switching switch of circuit, is easy to while controlling the state change of multiple switching switches, circuit structure is also relatively simple.
Further, the switching switch is metal-oxide-semiconductor switch.
The utility model connects equipment to be calibrated, test table, current divider, discharge power supply, by testing switching electricity Each group switch in road, realizes being switched fast between different tests, effectively increases the calibration efficiency of component capacitive equipment.
Brief description of the drawings
Fig. 1 is the structural representation that the utility model tests the embodiment of switching circuit one;
Fig. 2 is the structural representation that the utility model tests another embodiment of switching circuit;
Fig. 3 is the structural representation that the utility model tests the another embodiment of switching circuit.
Realization, functional characteristics and the advantage of the utility model purpose will be described further referring to the drawings in conjunction with the embodiments.
Embodiment
It should be appreciated that specific embodiment described herein is not used to limit this only to explain the utility model Utility model.
The utility model provides a kind of test switching circuit for component capacitive equipment, reference picture 1, in first embodiment In, the test switching circuit includes positive pole current terminal, cathodal current end, shunting positive voltage terminal, shunting negative voltage side, shunting negative electricity End, shunting positive current end, measurement current terminal, measurement voltage end, measurement common port and switching switch are flowed, positive pole current terminal passes through Switching switch with shunting positive current end or measurement current terminal be connected, cathodal current end by switch switch and shunt negative current end or Common port connection is measured, measurement common port is also connected with shunting negative voltage side, and measurement voltage end is connected with shunting positive voltage terminal, just Electrode current end, cathodal current end are used to be connected with equipment to be corrected.
The shunting positive voltage terminal of the present embodiment, shunting negative voltage side, shunting negative current end, shunting positive current end are used for dividing Device connection is flowed, measurement current terminal, measurement voltage end, measurement common port are used to be connected with measurement table, and measurement table can be with voltmeter, electricity One or more in flow table, universal meter;Test switching circuit is connected with external equipment component during implementation, you can by dialling Dynamic switch realizes the high current of equipment to be corrected and accurately measuring for low current, its small current can by High Precision Multimeter or Ammeter direct measurement, to ensure the precision of current detecting, high current is then by using High Precision Multimeter or voltmeter survey The voltage at current divider two ends is measured, and the resistance of current divider is known, therefore just can obtain accurately high current by calculating Value.
Based on first embodiment, in a second embodiment, above-mentioned positive pole current terminal is by switching switch and shunting positive current Hold or measure the switching switch in current terminal connection and switch K1B to switch, cathodal current end is respectively by switching switch K1A with dividing Stream negative current end connects, is connected in other embodiments with measurement common port by switching switch K1C, and switching switchs K1A and cut Changing switch K1C can also merge;Switching switch K1A, switching switch K1B, switching switch K1C are one group of group switch K1, when group is opened When pass K1 states change, all switching on off states in group switch change;Group switch K1 on-off circuit State is that cathodal current end is connected with measurement common port when positive pole current terminal is connected with measurement current terminal;When positive pole current terminal When being connected with shunting positive current end, cathodal current end is connected with shunting negative current end.
A kind of switch modes of emplacement for testing switching circuit is disclosed in the present embodiment.And state is needed simultaneously to occur The switch of change is set to one group, can simplify the control of switch.The present embodiment passes through when being switched to high-current test by low current Control group switchs K1, such as sends signal to a group switch K1 or carries out physical action, the switching switch K1A in group switch K1, switching Switch K1B, switching switch K1C are acted simultaneously, i.e., positive pole current terminal is changed to and shunting positive current end by being connected with measurement current terminal Connection, shunting negative current end is changed to be connected with cathodal current end and measurement common port by off state.
Reference picture 2, based on second embodiment, in the third embodiment, test switching circuit also includes cathode voltage end, born Pole tension end, constant pressure resistance, group switch K2, organizing switch K2 includes switching switch K2A, switches switch K2B, switching switch K2C, cuts Switch K2D, switching switch K2E and switching switch K2F are changed, positive pole current terminal is by switching switch K2A and switching switch K1B or perseverance Piezoresistance is connected, and cathodal current end is connected by switching switch K2B with switching switch K1A, switching switch K1C, or and constant pressure The other end connection of resistance;Cathode voltage end is connected by switching switch K2C with positive pole current terminal or switching switch K2E, negative pole Voltage end is connected by switching switch K2D with cathodal current end or switching switch K2F, and measurement voltage end is by switching switch K2E It is connected with shunting positive voltage terminal or switching switch K2C, measurement common port is by switching switch K2F and shunting negative current end or switching Switch K2D connections.Cathode voltage end, negative electricity pressure side are used to be connected with equipment to be corrected(Cathode voltage end and negative electricity pressure side, The multi-channel switches such as relay or metal-oxide-semiconductor can be also connected with as needed between equipment to be corrected).
Existing survey voltage method is that loop pressure drop is reduced by setting the constant pressure resistance of high value, improves voltage tester Precision, but this method can not still meet the voltage tester required precision of component capacitive equipment, and one is disclosed in the present embodiment Kind can carry out the test switching circuit of voltage x current test switching, when carrying out voltage tester, by constant pressure resistance two ends respectively with Positive pole current terminal, the connection of cathodal current end, cathode voltage end is connected with measurement voltage end, and negative electricity pressure side is public with measuring End connection, you can measure the two ends output voltage of equipment to be corrected;This method surveys voltage for the four-wire method of battery, is cut in test Changing in circuit sets four-wire method to survey potential circuit, not only simplifies thread-changing operation, also improves accuracy of detection.In addition, this implementation Example, need to be short by negative electricity pressure side and cathodal current end by positive pole current terminal and cathode voltage end short circuit when carrying out testing current Connect, constant pressure resistance two ends are opened a way, and measurement voltage end is connected with shunting positive voltage terminal, make measurement common port negative with shunting Current terminal is connected, and specifically used universal meter direct measurement still refers to first and second embodiment using current divider mode measurement.This The group switch K2 of embodiment is identical with the group switch K1 of second embodiment, when a group switch K2 states change, group switch Interior all switching on off states change.Group switch K2 on off state is when positive pole current terminal and constant pressure resistance company Connect, then cathodal current end is also connected with constant pressure resistance, cathode voltage end is connected with measurement voltage end, and negative electricity pressure side is public with measurement End connection altogether;When positive pole current terminal respectively with cathode voltage end, switching switch K1B be connected, then cathodal current end respectively with negative pole Voltage end, group switch K1 connections, measurement voltage end are connected with shunting positive voltage terminal, and measurement common port connects with shunting negative voltage side Connect.
Reference picture 3, based on 3rd embodiment, in the fourth embodiment, test switching circuit also include switching switch K3A, Positive discharge end, negative discharge end, switching switch K3A are connected with switching switch K2B, positive discharge end, negative discharge end respectively, Positive discharge end is also connected with switching switch K1A, switching switch K1C, and positive discharge end, negative discharge end are used for and discharge power supply Connection.
The test switching circuit of the present embodiment can also carry out discharge test switching, that is, testing switching circuit has voltage survey Die trial formula, testing current pattern and discharge mode, discharge mode need the electric current in testing current pattern 3rd embodiment Carried out under test mode, cathodal current end is connected by control switching switch K3A with negative discharge end.Above-mentioned switching is switched Single-pole double-throw relay or metal-oxide-semiconductor switch or other switches;The state for testing switching circuit acquiescence can be voltage testing mode.
Preferred embodiment of the present utility model is these are only, the scope of the claims of the present utility model is not thereby limited, it is every The equivalent structure or equivalent flow conversion made using the utility model specification and accompanying drawing content, or be directly or indirectly used in Other related technical fields, are similarly included in scope of patent protection of the present utility model.

Claims (10)

1. a kind of test switching circuit for component capacitive equipment, it is characterised in that including switching switch, for it is to be corrected Equipment connection positive pole current terminal/cathodal current end, for be connected with current divider shunting positive voltage terminal/shunting negative voltage side/ Negative current end/shunting positive current end, measurement current terminal/measurement voltage end/measurement common port for being connected with measurement table are shunted, The positive pole current terminal is connected by switching switch with shunting positive current end or measurement current terminal, and the cathodal current end is by cutting Change switch to be connected with shunting negative current end or measurement common port, the measurement common port is also connected with shunting negative voltage side, described Measurement voltage end is connected with shunting positive voltage terminal.
2. switching circuit is tested as claimed in claim 1, it is characterised in that the shunting negative current end, which passes through to switch, to be switched K1A is connected with cathodal current end, and the measurement common port is connected by switching switch K1C with cathodal current end, the positive pole electricity Stream end is connected by switching switch K1B with shunting positive current end or measurement current terminal, the switching switch K1A, switching switch K1B It is group switch K1 with switching switch K1C, when a group switch K1 states change, all switchings switch shape in group switch K1 State changes.
3. switching circuit is tested as claimed in claim 2, it is characterised in that described group of switch K1 on-off circuit state is to work as When positive pole current terminal is connected with measurement current terminal, the cathodal current end is connected with measurement common port.
4. switching circuit is tested as claimed in claim 2, it is characterised in that described group of switch K1 on-off circuit state is to work as When positive pole current terminal is connected with shunting positive current end, the cathodal current end is connected with shunting negative current end.
5. the test switching circuit as described in claim 3 or 4, it is characterised in that the test switching circuit also includes positive pole Voltage end, negative electricity pressure side, constant pressure resistance, group switch K2, described group of switch K2 include switching switch K2A, switching switch K2B, Switching switch K2C, switching switch K2D, switching switch K2E and switching switch K2F, the positive pole current terminal are switched by switching K2A is connected with switching switch K1B or constant pressure resistance, and the cathodal current end is by switching switch K2B and switching switch K1A, cutting Switch K1C connections are changed, or are connected with the other end of constant pressure resistance;The cathode voltage end is by switching switch K2C and positive pole Current terminal or switching switch K2E connections, the negative electricity pressure side are switched by switching switch K2D and cathodal current end or switching K2F connections, the measurement voltage end is connected by switching switch K2E with shunting positive voltage terminal or switching switch K2C, the measurement Common port is connected by switching switch K2F with shunting negative current end or switching switch K2D.
6. switching circuit is tested as claimed in claim 5, it is characterised in that when a group switch K2 states change, the group All switching on off states in switch K2 change.
7. switching circuit is tested as claimed in claim 6, it is characterised in that described group of switch K2 on-off circuit state is to work as Positive pole current terminal is connected with constant pressure resistance, then cathodal current end is also connected with constant pressure resistance, cathode voltage end and measurement voltage end Connection, negative electricity pressure side is connected with measurement common port.
8. switching circuit is tested as claimed in claim 5, it is characterised in that the test switching circuit also includes switching switch K3A, positive discharge end, negative discharge end, the switching switch K3A are put with switching switch K2B, positive discharge end, negative pole respectively Electric end connection, the positive discharge end is also connected with switching switch K1A, switching switch K1C.
9. the test switching circuit as described in claim any one of 6-8, it is characterised in that the switching switch is single-pole double throw Relay.
10. the test switching circuit as described in claim any one of 6-8, it is characterised in that the switching switch is opened for metal-oxide-semiconductor Close.
CN201720203572.9U 2017-03-03 2017-03-03 Test switching circuit for component capacitive equipment Active CN206583938U (en)

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Application Number Priority Date Filing Date Title
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Application Number Priority Date Filing Date Title
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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108732524A (en) * 2018-07-06 2018-11-02 山东大学 A kind of the automation Calibration Circuit and system of forming and capacity dividing test power supply
CN110031679A (en) * 2019-03-28 2019-07-19 广东工业大学 A kind of inner walkway technology based on forming and capacity dividing power supply
CN112731253A (en) * 2021-01-07 2021-04-30 广州擎天实业有限公司 Method and system for calibrating and metering serial component capacity detection equipment

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108732524A (en) * 2018-07-06 2018-11-02 山东大学 A kind of the automation Calibration Circuit and system of forming and capacity dividing test power supply
CN108732524B (en) * 2018-07-06 2020-01-03 山东大学 Automatic calibration circuit and system for formation and grading test power supply
CN110031679A (en) * 2019-03-28 2019-07-19 广东工业大学 A kind of inner walkway technology based on forming and capacity dividing power supply
CN112731253A (en) * 2021-01-07 2021-04-30 广州擎天实业有限公司 Method and system for calibrating and metering serial component capacity detection equipment

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