CN217404488U - Battery charging and discharging tester - Google Patents
Battery charging and discharging tester Download PDFInfo
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- CN217404488U CN217404488U CN202123370845.4U CN202123370845U CN217404488U CN 217404488 U CN217404488 U CN 217404488U CN 202123370845 U CN202123370845 U CN 202123370845U CN 217404488 U CN217404488 U CN 217404488U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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Abstract
The utility model discloses a battery charge-discharge tester, include: the device comprises a power supply, a charging converter, a discharging converter and a test tool; the test tool comprises a power controller, a charging change-over switch, a charging diode, a discharging change-over switch and a discharging diode; the charging converter and the discharging converter are respectively connected with a power supply, and the testing tool is provided with a first connector and a second connector; a first electrode of the charging converter, the charging selector switch, the power controller, the charging diode and a first connector are sequentially connected, and a second electrode of the charging converter is connected with a second connector; the first electrode, the discharge change-over switch, the power controller, the discharge diode and the first connector of the discharge converter are sequentially connected, and the second electrode of the discharge converter is connected with the second connector; the discharging diode is connected in parallel with the power controller and the charging diode which are connected together in series. The requirements of battery charging and discharging are met, operation is convenient, and manufacturing cost is reduced.
Description
Technical Field
The utility model relates to a battery test technical field especially relates to a battery measurement tester.
Background
With the high-speed development of new energy industry and the continuous breakthrough of battery technology, various novel batteries are continuously developed and advanced. After the battery is manufactured, the battery needs to be subjected to a charge and discharge test. In the test process of the conventional battery, the charging and discharging test is carried out on the battery through the charging and discharging equipment. For example, chinese patent publication No. CN 109474048A discloses a negative-voltage-containing power battery charging and performance detecting device, which controls charging and discharging of a battery pack through a DC/DC bidirectional converter after an input voltage of a transformer passes through an AC/DC converter. Since the charging and discharging circuits are completely independent, for this reason, a DC/DC bidirectional converter is additionally provided to perform commutation control of charging and discharging, resulting in an increase in manufacturing cost. How to design a need not to dispose DC/DC bidirectional converter just can satisfy the technique that the battery charges and discharges the test requirement in succession simultaneously and reduce manufacturing cost is the utility model aims to solve the technical problem.
SUMMERY OF THE UTILITY MODEL
The utility model provides a battery charge and discharge tester realizes that battery charge and discharge tester satisfies the requirement of battery charge and discharge to convenient operation reduces manufacturing cost.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides a battery charge-discharge tester, include: the device comprises a power supply, a charging converter, a discharging converter and a test tool; the test tool comprises a power controller, a charging change-over switch, a charging diode, a discharging change-over switch and a discharging diode; the charging converter and the discharging converter are respectively connected with the power supply, and the testing tool is provided with a first connector and a second connector;
the first electrode of the charging converter, the charging selector switch, the power controller, the charging diode and the first connector are sequentially connected, and the second electrode of the charging converter is connected with the second connector;
the first electrode of the discharge converter, the discharge change-over switch, the power controller, the discharge diode and the first connector are sequentially connected, and the second electrode of the discharge converter is connected with the second connector;
the discharge diode is connected in parallel with the power controller and the charging diode which are connected together in series.
Further, the power supply is an alternating current power supply.
Further, a charging transformer is arranged between the power supply and the charging converter.
Further, a discharge transformer is arranged between the power supply and the discharge converter.
Further, the charging converter and the discharging converter are AC/DC converters.
Furthermore, the battery charge and discharge tester comprises a plurality of test tools which are arranged in parallel.
The technical scheme of the utility model prior art relatively has following technological effect: the battery is connected to the charging converter and the discharging converter through the testing tool, and the charging and discharging test of the battery can be realized only by controlling the on-off of the corresponding change-over switch in the charging and discharging test process, so that the charging equipment and the discharging equipment are configured independently without errors, and the manufacturing cost is reduced; in addition, in the test process, only need be connected the battery on first connector and second connector, and need not in the charge-discharge process, the dismouting battery, and then simplified operation process, make things convenient for operating personnel to use.
In addition, the on-off requirement of current in the charging and discharging process is met by configuring the charging diode and the discharging diode, and further, a DC/DC bidirectional converter is not required to be additionally configured to control charging and discharging of the battery pack, so that the manufacturing cost is reduced.
Drawings
Fig. 1 is the circuit schematic diagram of the battery charge-discharge tester of the utility model.
Reference numerals:
the device comprises a power supply 1, a charging converter 2, a discharging converter 3, a testing tool 4, a power controller 41, a charging change-over switch 42, a charging diode 43, a discharging change-over switch 44, a discharging diode 45, a first connector 401, a second connector 402, a charging transformer 5, a discharging transformer 6 and a battery 100;
Detailed Description
As shown in fig. 1, the utility model provides a battery measurement tester, include: the device comprises a power supply 1, a charging converter 2, a discharging converter 3 and a test tool 4; the test tool 4 comprises a power controller 41, a charging change-over switch 42, a charging diode 43, a discharging change-over switch 44 and a discharging diode 45; the charging converter 2 and the discharging converter 3 are respectively connected with the power supply 1, and the testing tool 4 is provided with a first connector 401 and a second connector 402;
a first electrode of the charging converter 2, the charging selector switch 42, the power controller 41, the charging diode 43 and the first connector 401 are sequentially connected, and a second electrode of the charging converter 2 is connected with the second connector 402;
the first electrode of the discharge converter 3, the discharge changeover switch 44, the power controller 41, the discharge diode 45 and the first connector 401 are connected in sequence, and the second electrode of the discharge converter 3 is connected with the second connector 402;
the discharge diode 45 is connected in parallel to the power controller 41 and the charge diode 43 connected in series.
Specifically, in the actual test process, the battery 100 to be tested is connected to the first terminal and the second terminal, for example: the positive pole of the battery is electrically connected to the first connector, and the negative pole of the battery is electrically connected to the second connector 402.
When the battery is subjected to a charging test, the charging switch 42 is closed, the discharging switch 44 is opened, and the charging converter 2, the charging switch 42, the power controller 41, the charging diode 43, and the battery 100 form a closed loop. The charging converter 2 is output by a constant current source, and the charging and discharging tester feeds back the change of the current and voltage of the battery according to the control signal and automatically adjusts the current and voltage of the power controller 41 to realize the charging test of the battery.
When the battery needs to be subjected to a discharge test, the charging switch 42 is opened, the discharging switch 44 is closed, and the discharging converter 3, the battery 100, the discharging diode 45, the power controller 41 and the discharging switch 44 form a closed loop. The discharge converter 3 is output by a constant current source, and the charge and discharge tester feeds back the change of the current and voltage of the battery according to the control signal and automatically adjusts the current and voltage of the power controller 41 to realize the discharge test of the battery.
The battery is connected to the charging converter and the discharging converter through the testing tool, and the charging and discharging test of the battery can be realized only by controlling the on-off of the corresponding change-over switch in the charging and discharging test process, so that the charging equipment and the discharging equipment do not need to be configured independently, and the manufacturing cost is reduced; in addition, in the test process, only the battery needs to be connected to the first connector 401 and the second connector 402, and the battery does not need to be disassembled and assembled in the charging and discharging process, so that the operation process is simplified, and the use of an operator is facilitated.
The power supply 1 is supplied with ac power, and correspondingly, a charging transformer 5 is provided between the power supply 1 and the charging converter 2. Similarly, a discharge transformer 6 is provided between the power supply 1 and the discharge converter 3.
Further, the charging converter 2 and the discharging converter 3 are AC/DC converters.
Further, the battery charge and discharge tester comprises a plurality of test tools 4, and the plurality of test tools 4 are arranged in parallel.
Specifically, in order to improve the testing efficiency, for a plurality of batteries, a plurality of parallel test tools 4 can be configured, each test tool 4 is connected with the corresponding battery, and then, the charging and discharging tests of the plurality of batteries can be realized at one time.
Based on the technical scheme, optionally, in the charging and discharging test process of the conventional battery, only positive charging and positive discharging can be carried out on the battery, and positive and negative charging and discharging cannot be realized through the same device;
in the charging mode, the battery is charged through a charge and discharge tester, the charge and discharge tester automatically adjusts and adapts to the charging of the battery according to different batteries, and when the battery is charged, the tester automatically detects the polarity of the anode and the cathode of the battery, and automatically adjusts parameters to enable the potential of the battery to be continuously charged when the potential of the battery is zero;
in the discharging mode, the battery is discharged through the charging and discharging tester, the charging and discharging tester automatically adjusts to adapt to discharging of the battery according to different batteries, when the battery discharges, the tester automatically detects the polarity of the anode and the cathode of the battery, and parameters are automatically adjusted to enable the potential of the battery to continue discharging when the potential of the battery crosses zero.
Specifically, in the charging and discharging processes, the normal positive voltage charging and discharging test of the battery can be met through the automatic adjustment of the charging and discharging tester, the polarity of the positive electrode and the negative electrode of the battery can be further automatically detected, parameters can be automatically adjusted to enable the battery to continue to be charged and discharged when the potential of the battery crosses zero, and then negative voltage charging and discharging are achieved.
The multifunctional charging and discharging device can perform the functions of charging and discharging or detecting various batteries and battery packs under normal conditions, and also has the functions of charging and discharging or detecting the batteries and the battery packs when the batteries and the battery packs do not display electricity or display negative pressure.
Based on the above charge-discharge tester, the real-time voltage of the power controller 41 is Ur, the sum of the voltages of the charge diverter switch and the charge diode and the sum of the voltages of the discharge diverter switch and the discharge diode are Us, the voltages of the charge converter 2 and the discharge converter 3 are Ud, the real-time voltage of the battery to be tested is Ub, the lowest working voltage of the power controller 41 is U1, the rated positive voltage of the battery to be tested is U2, and the rated negative voltage of the battery to be tested is U3.
To realize seamless continuous charging of positive and negative voltages, it is necessary to ensure that the voltage Ur ≧ U1 of the power controller 41, that is, the value obtained by subtracting the voltage Ub of the battery from the voltage Ud of the charging converter 2 and subtracting the sum Us of the charging switch 42 and the charging diode voltage 43 is equal to or greater than U1. Because the sum Us of the voltage of the charging switch 42 and the voltage of the charging diode 43 is the voltage drop of the device, and the voltage Ub of the battery is a known fixed value, the voltage Ud of the charging converter 2 is ensured to be larger than or equal to Ur + Ub + Us, and the normal work of the function of the tester can be realized, so that the seamless continuous charging of positive and negative voltages is realized.
Specifically, in the charging mode, Ub + Ur + Us-Ud =0, and according to the formula Ur = Ud-Ub-Us, the operating voltage Ur ≧ U1 of the power controller 41 at this time, that is, Ud-Ub-Us ≧ U1. Along with the change of the battery voltage Ub (U2 ≧ 0 or U3 ≧ 0), the sum Us of the voltages of the charging switch 42 and the charging diode 43 is the device voltage drop, and at this time, the working voltage of the power controller 41 is the lowest when Ur = Ud-U2-Us, that is, the voltage value Ud of the charging converter 2 is adjusted to satisfy Ud-U2-Us ≧ U1, and the negative voltage charging of the battery can be realized.
For example: the rated voltage of the battery is U2=12V, U3= -12V, the sum Us of the voltages of the charging switch 42 and the charging diode 43 is =5V, and the lowest operating voltage of the power controller 2 is U1= 10V; ur + Ub + Us-Ud =0
Ub greater than 0, Ub = U2, Ur = U1; Ud-U2-Us ≧ U1, Ud ≧ 10v +12v +5v =27v, namely Ud takes 27v to satisfy the work requirement;
ub equal to 0, Ub = U2, Ur = U1; Ud-U2-Us ≧ U1, Ud ≧ 10v +0v +5v =15v, namely Ud takes 15v to satisfy work requirement
Ub less than 0, Ub = U3, Ur = U1; Ud-U3-Us ≧ U1, Ud ≧ 10v-12v +5v =3v, namely 3v of Ud meets the working requirement,
it can be seen from the above example that when Ub is greater than 0, the voltage value Ud of the charging converter is the largest, so the voltage value Ud of the charging converter of the tester should be 27v at this time, and the negative voltage charging of the battery can be realized.
Similarly, to realize seamless continuous discharge of positive and negative voltages, it is necessary to ensure that the voltage Ur ≧ U1 of the power controller 41, i.e., the sum of the voltage Ud of the discharge converter 3 and the voltage Ub of the battery minus the sum Us of the discharge switch 44 and the discharge diode 45 is greater than U1. Because the sum Us of the discharge changeover switch 44 and the discharge diode 45 is the device voltage drop and the voltage Ub of the battery is a known fixed value, the voltage value Ud ≧ Ur-Ub + Us of the discharge converter 3 is ensured, and the normal operation of the function of the tester can be realized, so that the seamless continuous discharge of positive and negative voltages is realized.
Specifically, Ub-Ur + Ud-Us =0, and according to the formula Ur = Ud + Ub-Us, the operating voltage Ur of the power controller is ≧ U1, i.e., Ud + Ub-Us ≧ U1. Along with the change of the battery voltage Ub (U2 ≧ 0 or U3 ≧ 0), the sum Us of the voltages of the discharge switch 44 and the discharge diode 45 is the device voltage drop, and at this time, the working voltage of the power controller is the lowest when Ur = Ud + U3-Us, that is, the negative voltage discharge of the battery can be realized by adjusting the voltage value Ud of the discharge converter 3 to meet Ud + U3-Us ≧ U1.
For example: the rated voltage of the battery is U2=12V, U3= -12V, the sum of the voltages of the charging switch and the charging diode is Us =5V, and the lowest working voltage of the power controller is U1= 10V; Ub-Ur + Ud-Us =0
Ub greater than 0, Ub = U2, Ur = U1; u2 + Ud-Us ≧ U1, Ud ≧ 10v-12v +5v =3v, namely Ud takes 3v to meet the work requirement;
ub equal to 0, Ub = U2, Ur = U1; u2 + Ud-Us ≧ U1, Ud ≧ 10v-0v +5v =15v, namely, 15v taken by Ud meets the work requirement
Ub less than 0, Ub = U3, Ur = U1; u3 + Ud-Us ≧ U1, Ud ≧ 10v +12v +5v =27v, namely Ud takes 27v to satisfy the work requirement,
from the above example, it can be seen that when Ub is less than 0, the voltage value Ud of the discharge converter is the largest, so the voltage value Ud of the discharge converter of the tester should be 27v at this time, that is, negative voltage discharge of the battery can be realized.
Therefore, when the tester is used for charging and discharging negative voltage, the voltage Ur ≧ U1 of the power controller 41 is guaranteed, and seamless continuous charging and discharging of positive and negative voltage can be realized.
The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (5)
1. A battery charge and discharge tester, comprising: the device comprises a power supply, a charging converter, a discharging converter and a test tool; the test tool comprises a power controller, a charging change-over switch, a charging diode, a discharging change-over switch and a discharging diode; the charging converter and the discharging converter are respectively connected with the power supply, and the testing tool is provided with a first connector and a second connector;
the first electrode of the charging converter, the charging selector switch, the power controller, the charging diode and the first connector are sequentially connected, and the second electrode of the charging converter is connected with the second connector;
the first electrode of the discharge converter, the discharge change-over switch, the power controller, the discharge diode and the first connector are sequentially connected, and the second electrode of the discharge converter is connected with the second connector;
the discharge diode is connected in parallel with the power controller and the charge diode which are connected together in series;
the charging converter is an AC/DC converter, and the discharging converter is also an AC/DC converter.
2. The battery charge and discharge tester as claimed in claim 1, wherein the power supply is an alternating current power supply.
3. The battery charge and discharge tester as claimed in claim 2, wherein a charging transformer is provided between the power supply and the charging converter.
4. The battery charge and discharge tester as claimed in claim 2, wherein a discharge transformer is provided between the power supply and the discharge transformer.
5. The battery charge and discharge tester according to any one of claims 1-4, wherein the battery charge and discharge tester comprises a plurality of said test tools, and the plurality of said test tools are arranged in parallel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123370845.4U CN217404488U (en) | 2021-12-30 | 2021-12-30 | Battery charging and discharging tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123370845.4U CN217404488U (en) | 2021-12-30 | 2021-12-30 | Battery charging and discharging tester |
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| Publication Number | Publication Date |
|---|---|
| CN217404488U true CN217404488U (en) | 2022-09-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123370845.4U Active CN217404488U (en) | 2021-12-30 | 2021-12-30 | Battery charging and discharging tester |
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|---|---|
| CN (1) | CN217404488U (en) |
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2021
- 2021-12-30 CN CN202123370845.4U patent/CN217404488U/en active Active
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