CN219143048U - Tool test board and battery test equipment - Google Patents
Tool test board and battery test equipment Download PDFInfo
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- CN219143048U CN219143048U CN202223032848.1U CN202223032848U CN219143048U CN 219143048 U CN219143048 U CN 219143048U CN 202223032848 U CN202223032848 U CN 202223032848U CN 219143048 U CN219143048 U CN 219143048U
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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
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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Abstract
The utility model provides a tool test board and battery test equipment, wherein the tool test board comprises a voltage dividing module, a plurality of relays which are connected in parallel with each other and a connector which is used for being connected with a voltage acquisition module, the negative end of the voltage dividing module is connected with the connector and grounded, the voltage dividing module comprises a plurality of voltage dividing resistors which are connected in series with each other, the positive ends of at least two voltage dividing resistors are respectively connected with the relays and the connector, and the other ends of the relays are used for being connected with a test power supply; according to the technical scheme provided by the utility model, the number of the series connection of the voltage dividing resistors can be selected through the closing of the relay, so that the battery modules with different series numbers are simulated to perform test work; the utility model has high flexibility, is convenient for users to use, and can also reduce the test cost.
Description
Technical Field
The utility model relates to the technical field of battery system testing, in particular to a tool test board and battery test equipment.
Background
The BMS system (Battery Management System ) of the electric automobile can monitor and collect state parameters of the energy storage battery in real time, analyze and calculate related parameters, and further control the energy storage battery, so that the energy storage battery module can run safely and reliably. Therefore, in the BMS system, the cell voltage information is essential data for ensuring the safety of the system.
Today, battery simulators and FCT (Functional Circuit Test, functional test) test boards are mostly used in BMS system test links to simulate the battery modules of the whole vehicle. However, battery simulators have the disadvantage of being too expensive, which can greatly exacerbate the cost of the test effort; the FCT test board in the related art has the defect that the string number cannot be flexibly selected, and when testing the battery modules of different vehicle types, a tester needs to respectively manufacture corresponding FCT test boards for the battery modules with different requirements, so that the work flow is complicated and tedious, and the test cost is greatly increased.
Disclosure of Invention
The present utility model aims to solve at least one of the technical problems existing in the prior art. Therefore, the tool test board provided by the utility model is high in flexibility, convenient for a user to use and capable of reducing test cost.
An embodiment of the first aspect of the utility model provides a tool test board, which is applied to battery test equipment, wherein the tool test board comprises a voltage dividing module, a plurality of relays connected in parallel with each other and a connector used for being connected with a voltage acquisition module, the negative end of the voltage dividing module is connected with the connector and grounded, the voltage dividing module comprises a plurality of voltage dividing resistors connected in series with each other, the positive ends of at least two voltage dividing resistors are respectively connected with the relays and the connector, and the other ends of the relays are used for being connected with a test power supply.
The tool test board provided by the embodiment of the utility model has at least the following beneficial effects: the tool test board is provided with a plurality of relays which are connected in parallel, one end of each relay is used for being connected with a test power supply, the other end of each relay is connected with the positive electrode end of the voltage dividing resistor of the voltage dividing module, and the number of the voltage dividing resistors connected in series can be selected through the closing of the relay. That is, after the relay is closed, the voltage dividing resistor connected with the relay can acquire the voltage from the test power supply through the relay; along with the fact that the number of the negative electrode ends of the voltage dividing resistors connected with other voltage dividing resistors is larger, the voltage collecting module can detect and obtain the voltage value of the voltage dividing module through the connector to simulate the voltages of the battery modules with different strings. By utilizing the concept of resistance voltage division, the number of battery strings can be flexibly selected according to actual conditions in the test working process of the battery system, and the voltage division module can be simulated into battery modules with different numbers of strings, so that the problem that the battery modules with different requirements need to be manufactured into different tool test boards can be solved; the embodiment of the utility model has high flexibility, is convenient for users to use, and can also reduce the test cost.
According to some embodiments of the utility model, the number of relays is equal to or less than the number of voltage dividing resistors.
According to some embodiments of the utility model, the connector comprises a first sampling port and a plurality of second sampling ports, the first sampling port is connected with the negative electrode end of the voltage dividing module, and the positive electrode ends of at least two voltage dividing resistors are respectively connected with the second sampling ports in a one-to-one correspondence manner.
According to some embodiments of the utility model, the number of second sampling ports matches the number of relays, or the number of second sampling ports matches the number of voltage dividing resistors.
According to some embodiments of the utility model, the test circuit further comprises a voltage conversion module, wherein the voltage conversion module comprises a switching power supply and a transformer, one end of the voltage conversion module is connected with the relay, and the other end of the voltage conversion module is used for being connected with a test power supply.
According to some embodiments of the utility model, the relay comprises a key module and an MCU module, wherein the key module is connected with the MCU module, and the MCU module is electrically connected with all the relays.
According to some embodiments of the utility model, the device further comprises a voltage feedback module, an MCU module and a display module, wherein one end of the voltage feedback module is connected with the relay, the other end of the voltage feedback module is connected with the MCU module, and the MCU module is connected with the display module.
According to some embodiments of the utility model, the display module further comprises a second power supply connected to the MCU module and the display module, respectively.
According to some embodiments of the utility model, the test circuit further comprises a signal isolation module, one end of the signal isolation module is connected with the voltage feedback module, and the other end of the signal isolation module is used for being connected with a test power supply.
An embodiment of a second aspect of the present utility model provides a battery testing device, including a testing power supply, a voltage collecting module, and a tool testing board according to the embodiment of the first aspect, where the tool testing board is provided with a plurality of voltage collecting modules, the number of the voltage collecting modules is matched with that of the tool testing boards, each voltage collecting module is respectively connected with each tool testing board in a one-to-one correspondence manner, and each tool testing board is connected in series with each other and is connected with the testing power supply.
The battery test equipment provided by the embodiment of the utility model has at least the following beneficial effects: the battery test equipment comprises a test power supply, a voltage acquisition module and a tool test board, wherein the tool test board is described in the embodiment of the first aspect; the test power supply is connected with the plurality of tool test boards and used for supplying power to the plurality of tool test boards, and the voltage acquisition module is connected with each tool test board in a one-to-one correspondence manner and used for acquiring the voltage value simulated by each tool test board; according to the embodiment, the tool test boards are used for simulating the battery modules with different strings, and the plurality of tool test boards are arranged for simulating the battery modules of the whole vehicle in series, so that not only can manpower and material resources be saved, but also the battery strings of the battery modules can be flexibly configured, and the efficiency of test work is improved; the embodiment of the utility model has high flexibility, is convenient for users to use, and can also reduce the test cost.
Drawings
Additional aspects and advantages of the present utility model will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings, in which:
FIG. 1 is a schematic structural diagram of a tooling test board according to an embodiment of the first aspect of the present utility model;
FIG. 2 is a schematic circuit diagram of a tooling test board according to another embodiment of the first aspect of the present utility model;
FIG. 3 is a schematic diagram showing a specific connection mode of a tool test board circuit according to another embodiment of the first aspect of the present utility model;
fig. 4 is a schematic structural view of a battery testing apparatus according to an embodiment of the second aspect of the present utility model.
Detailed Description
Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.
In the description of the present utility model, it should be understood that references to orientation descriptions such as upper, lower, front, rear, left, right, etc. are based on the orientation or positional relationship shown in the drawings, are merely for convenience of description of the present utility model and to simplify the description, and do not indicate or imply that the apparatus or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present utility model.
In the description of the present utility model, a number means one or more, a number means two or more, and greater than, less than, exceeding, etc. are understood to not include the present number, and above, below, within, etc. are understood to include the present number. The description of the first and second is for the purpose of distinguishing between technical features only and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
In the description of the present utility model, unless explicitly defined otherwise, terms such as arrangement, installation, connection, etc. should be construed broadly and the specific meaning of the terms in the present utility model can be reasonably determined by a person skilled in the art in combination with the specific contents of the technical scheme.
As shown in fig. 1 to 3, an embodiment of the first aspect of the present utility model provides a tooling test board 900 applied to a battery test device, where the tooling test board 900 includes a voltage dividing module 100, a plurality of relays 200 connected in parallel with each other, and a connector 300 for connecting with the voltage acquisition module 800, the negative terminal of the voltage dividing module 100 is connected with the connector 300 and grounded, the voltage dividing module 100 includes a plurality of voltage dividing resistors 110 connected in series with each other, the positive terminals of at least two voltage dividing resistors 110 are respectively connected with the relay 210 and the connector 300, and the other terminal of each relay 210 is connected with a test power supply 700.
It should be noted that, the voltage division module 100 includes a plurality of voltage division resistors 110 connected in series, the positive terminal of the voltage division module 100 is connected to the relay 210 and the connector 300 respectively, and the negative terminal of the voltage division module 100 is grounded and connected to the connector 300; the number of the voltage dividing resistors 110 is at least two, and the voltage dividing resistors 110 are connected in series, and the positive terminals of the voltage dividing resistors 110 are respectively connected with different relays 210 and connectors 300. The tool test board 900 is provided with a plurality of relays 200 connected in parallel, wherein one end of each relay 210 is used for being connected with the test power supply 700, so that the relay 210 can be normally connected with a power supply voltage for test work; the other ends of the relays 210 are respectively connected with the positive ends of different voltage dividing resistors 110, the number of the voltage dividing resistors 110 connected in series can be selected through the closing of the relays 210, after the relays 210 are closed, the voltage dividing resistors 110 connected with the relays 210 can acquire voltage from the test power supply 700 through the relays 210, and as the number of the negative ends of the voltage dividing resistors 110 connected with other voltage dividing resistors 110 is larger, the voltage acquisition module 900 can detect the voltage value of the voltage dividing module 100 through the connector 300 to be higher, so that the voltage of the battery modules with different strings is simulated.
As shown in fig. 2, it can be understood that the tool test board 900 is provided with thirteen parallel relays S6 to S18 and eighteen voltage dividing resistors R1 to R18, and each voltage dividing resistor 110 is connected in series with each other, that is, the positive terminal of the voltage dividing resistor R1 is connected to the negative terminal of the voltage dividing resistor R2, the positive terminal of the voltage dividing resistor R2 is connected to the negative terminal of the voltage dividing resistor R3, and so on. In addition, the connector 300 includes a first sampling port 310 and a plurality of second sampling ports 320, the first sampling port 310 being connected to the negative terminal of the voltage dividing module 100 and grounded; the positive terminals of the at least two voltage dividing resistors 110 are respectively connected with the second sampling ports 320 in a one-to-one correspondence manner. Specifically, the negative terminal of the voltage dividing resistor R1 is also connected to the first sampling port 310 of the connector 300 and grounded. The positive terminals of the voltage dividing resistors 110 are connected with the relays 210 in a one-to-one correspondence, for example, the positive terminal of the voltage dividing resistor R6 is connected with the relay S6, the positive terminal of the voltage dividing resistor R7 is connected with the relay S7, and so on. At least two voltage dividing resistors 110 need to be connected with the relay 210 and the connector 300 respectively at the positive ends, namely, the tool test board 900 is provided with at least two relays 210, so that the number of series connection of the voltage dividing resistors 110 can be selected through the closing of different relays 210, the number of battery strings can be flexibly configured, and different battery modules can be simulated.
According to the tooling test board 900 provided by the utility model, the tooling test board 900 is provided with a plurality of relays 200 which are connected in parallel, so that one end of the relay 210 is used for being connected with the test power supply 700, the other end of the relay 210 is connected with the positive electrode end of the voltage dividing resistor 110 of the voltage dividing module 100, and the number of the voltage dividing resistors 110 connected in series can be selected through the closing of the relay 210. After the relay 210 is closed, the voltage dividing resistor 110 connected to the relay 210 may obtain a voltage from the test power supply 700 through the relay 210; as the number of connection between the negative electrode terminal of the voltage dividing resistor 110 and other voltage dividing resistors 110 is greater, the voltage collecting module 800 can detect that the voltage value of the voltage dividing module 100 is higher through the connector 300, so as to simulate the voltages of the battery modules with different strings. By utilizing the concept of resistance voltage division, the number of battery strings can be flexibly selected according to actual conditions in the test working process of the battery system, and the voltage division module 100 can be simulated into battery modules with different numbers of strings, so that the problem that different tooling test boards need to be manufactured for the battery modules with different requirements can be solved; the embodiment of the utility model has high flexibility, is convenient for users to use, and can also reduce the test cost.
As shown in fig. 2, the number of relays 210 is equal to or less than the number of voltage dividing resistors 110 according to some embodiments of the present utility model.
The serial number setting value of the relay 210 is the same as the serial number value of the voltage dividing resistor 110 connected to the other end of the relay 210.
It should be noted that, in the first case, the number of relays 210 of the tooling test board 900 is equal to the number of voltage dividing resistors 110. For example, the tooling test board 900 is provided with two relays 210 connected in parallel, namely a relay S1 and a relay S2; the voltage dividing module 100 is provided with two voltage dividing resistors 110 which are connected in series, namely voltage dividing resistors R1 and R2; the relay S1 is connected with the positive electrode end of the voltage dividing resistor R1, the relay S2 is connected with the positive electrode end of the voltage dividing resistor R2, and the negative electrode end of the voltage dividing resistor R1 is grounded. After the relay S1 is closed, the other end of the relay S1 is connected with a voltage dividing resistor R1, and when the relay S2 is closed, the other end of the relay S2 is connected with two voltage dividing resistors R1 and R2 which are connected in series. In this case, the number of relays 210 is set from S1, the number of voltage dividing resistors 110 is also set from R1, and the number of relays 210 is equal to the number of voltage dividing resistors 110.
It should be noted that, in the second case, the number of relays 210 of the tooling test board 900 is smaller than the number of voltage dividing resistors 110. For example, the tooling test board 900 is provided with two relays 210 connected in parallel, namely a relay S6 and a relay S7; the voltage dividing module 100 is provided with seven voltage dividing resistors 110 which are connected in series, namely voltage dividing resistors R1 to R7 respectively; the relay S6 is connected with the positive end of the voltage dividing resistor R6, the relay S7 is connected with the positive end of the voltage dividing resistor R7, the negative end of the voltage dividing resistor R6 is connected with the positive end of the voltage dividing resistor R5, the negative end of the voltage dividing resistor R5 is connected with the positive end of the voltage dividing resistor R4, the negative end of the voltage dividing resistor R4 is connected with the positive end of the voltage dividing resistor R3, the negative end of the voltage dividing resistor R3 is connected with the positive end of the voltage dividing resistor R2, the negative end of the voltage dividing resistor R2 is connected with the positive end of the voltage dividing resistor R1, and the negative end of the voltage dividing resistor R1 is grounded. After the relay S6 is closed, six series-connected voltage dividing resistors R1 to R6 are connected to the other end of the relay S6; and after the relay S7 is closed, seven series voltage dividing resistors R1 to R7 are connected to the other end of the relay S7. In this case, the number of the relays 210 is set from S6, the number of the voltage dividing resistors 110 is set from R1, and in the case where the number of the relays 210 is only two, the number of the voltage dividing resistors 110 is seven, and at this time, the number of the relays 210 is smaller than the number of the voltage dividing resistors 110.
It should be noted that, the researcher and tester can connect one or more voltage dividing resistors 110 in series by closing the relay 210 to flexibly set the serial number of the battery modules, so as to simulate the voltage values of different battery modules and reduce the cost of testing work. The study tester may set the number of relays 210 according to the specific condition of the analog battery such that the number of relays 210 is less than or equal to the number of voltage dividing resistors 110, which is not particularly limited herein.
As shown in fig. 3, specifically, the number of relays 210 is smaller than the number of voltage dividing resistors 110 in the present embodiment, and thirteen relays 210, which are relays S6 to S18, respectively, are provided in the present embodiment; and eighteen voltage dividing resistors 110 are provided, respectively, the voltage dividing resistors R1 to R18. The relay S6 is connected with the positive electrode end of the voltage dividing resistor R6, the relay S7 is connected with the positive electrode end of the voltage dividing resistor R7, and by analogy, each relay 210 is connected with the positive electrode ends of different voltage dividing resistors 110 in a one-to-one correspondence manner; and the negative terminal of the voltage dividing resistor R1 is also grounded. In addition, the positive terminal of each voltage dividing resistor 110 is also connected with the connector 300 in a one-to-one correspondence manner, so that the voltage acquisition module 800 can accurately acquire the voltage value simulated by the battery module.
As shown in fig. 3, according to some embodiments of the present utility model, the connector 300 includes a first sampling port 310 and a plurality of second sampling ports 320, the first sampling port 310 is connected to a negative terminal of the voltage dividing module 100, and positive terminals of at least two voltage dividing resistors 110 are respectively connected to the second sampling ports 320 in a one-to-one correspondence.
It should be noted that, the tooling test board 900 is provided with a connector 300 connected to the voltage acquisition module 800, the connector 300 includes a first sampling port 310 and a plurality of second sampling ports 320, and the first sampling port 310 is connected to the negative terminal of the voltage division module 100 and grounded; the positive ends of the at least two voltage dividing resistors 110 are respectively connected with the second sampling ports 320 in a one-to-one correspondence manner, and since the positive ends of the two voltage dividing resistors 110 are also connected with different relays 210, the tool test board 900 has at least two relays 210 and two voltage dividing resistors 110. When the battery system test work is performed, the number of the series connection of the voltage dividing resistors 110 can be selected by closing different relays 210, so that the voltage values of different battery modules can be simulated, the number of the battery strings can be flexibly configured, and the cost of the test work is reduced.
As shown in fig. 3, specifically, the present embodiment is provided with a first sampling port 310 and a second sampling port 320. The first sampling port 310 is connected to the negative terminal of the voltage dividing module 100 and grounded, and since the voltage dividing module 100 is provided with the voltage dividing resistors R1 to R18, the first sampling port 310 is also connected to the negative terminal of the first resistor R1. The first sampling port 310 is connected to the voltage acquisition module 800 through a port V0, and the second sampling port 320 is connected to the voltage acquisition module 800 through ports V1 to V8. Specifically, the port V0 is connected to the negative electrode of the voltage dividing resistor R1 through the first sampling port 310, and the ports V1 to V18 are respectively connected to the positive electrode of the voltage dividing resistors R1 to R18 through the second sampling port 320 in a one-to-one correspondence manner, the first sampling port 310 and the second sampling port 320 can obtain the voltage dividing signals of the series connection of the voltage dividing resistors R1 to R18, and as the number of the series connection of the voltage dividing resistors R1 to R18 increases, the voltage collecting module 800 can detect the voltage value of the voltage dividing module 100 through the ports V0 to V18 to obtain the voltage of the battery modules with different serial numbers, thereby simulating the voltages of the battery modules with different serial numbers.
As shown in fig. 3, according to some embodiments of the present utility model, the number of second sampling ports 320 matches the number of relays 210, or the number of second sampling ports 320 matches the number of voltage dividing resistors 110.
It should be noted that, the first sampling port 310 is connected to the voltage acquisition module 800 through the port V0, and the second sampling port 320 is connected to the voltage acquisition module 800 through the ports V1 to V8. The voltage collecting module 800 collects the voltage values of the two ends of the series connection of the voltage dividing resistors 110, and in the first case, the number of the second sampling ports 320 is the same as the number of the relays 210. For example, two relays 210 of the tool test board 900 are provided, namely, relays S6 and S7, and seven voltage dividing resistors 110 are provided, namely, voltage dividing resistors R1 to R7; the negative electrode of the voltage dividing resistor R1 is grounded and connected with the port V0 through the first sampling port 310, the voltage dividing resistors R2 to R7 are connected in series with the voltage dividing resistor R1, the positive electrode of the voltage dividing resistor R6 is connected with the relay S6, and the positive electrode of the voltage dividing resistor R7 is connected with the relay S7. At this time, the number of the second sampling ports 320 may be set to two, and the voltage dividing resistor R6 and the voltage dividing resistor R7 are connected to the ports V6 and V7 through the second sampling ports 320. When the relay S6 is closed, the positive electrode end of the voltage dividing resistor R6 is respectively connected with the relay S6 and the port V6, and the voltage value of the voltage dividing module 100 can be acquired through the port V0 and the port V6; when the relay S7 is closed, the positive electrode end of the voltage dividing resistor R7 is respectively connected with the relay S7 and the port V7, and the voltage value of the voltage dividing module 100 can be acquired through the port V0 and the port V7; in this case, the number of second sampling ports 320 matches the number of relays 210.
It should be noted that, the first sampling port 310 is connected to the voltage acquisition module 800 through the port V0, and the second sampling port 320 is connected to the voltage acquisition module 800 through the ports V1 to V8. The voltage collecting module 800 collects the voltage values of the two ends of the series connection of the voltage dividing resistors 110, and in the second case, the number of the second sampling ports 320 is the same as the number of the voltage dividing resistors 110. For example, two relays 210 of the tool test board 900 are provided, namely, relays S6 and S7 are provided, seven voltage dividing resistors 110 are provided, namely, voltage dividing resistors R1 to R7 are provided, wherein the negative electrode of the voltage dividing resistor R1 is grounded and connected with a port V0 through a first sampling port 310, the voltage dividing resistors R2 to R7 are connected in series with the voltage dividing resistor R1, the positive electrode of the voltage dividing resistor R6 is connected with the relay S6, and the positive electrode of the voltage dividing resistor R7 is connected with the relay S7. At this time, the number of the second sampling ports 320 may be seven, and the second sampling ports may be connected to the ports V1 to V7, respectively, that is, the positive terminals of the voltage dividing resistors R1 to R7 may be connected to the ports V1 to V7 in a one-to-one correspondence through the second sampling ports 320. At this time, the port V0 can be connected to the negative electrode of the voltage dividing resistor R1 through the first sampling port 310, the port V1 can be connected to the positive electrode of the voltage dividing resistor R1 through the second sampling port 320, and the voltage value of R1 can be collected; in addition, the port V1 is further connected to the negative terminal of the voltage dividing resistor R2 through the second sampling port 320, and the port V2 is connected to the positive terminal of the voltage dividing resistor R2 through the second sampling port 320, so that the voltage value of R2 can be collected; and so on. In this case, the second sampling port 320 can be matched with the first sampling port 310 to measure the voltage value of each of the voltage dividing resistors 110, and the number of the second sampling ports 320 is matched with the number of the voltage dividing resistors 110.
As shown in fig. 3, the first sampling port 310 is connected to the voltage acquisition module 800 through a port V0, and the second sampling port 320 is connected to the voltage acquisition module 800 through ports V1 to V8. Specifically, the number of the second sampling ports 320 in this embodiment matches the number of the voltage dividing resistors 110, the port V0 is connected to the negative electrode terminal of the voltage dividing resistor R1 through the first sampling port 310, and the ports V1 to V18 are respectively connected to the positive electrode terminals of the voltage dividing resistors R1 to R18 in one-to-one correspondence through the second sampling port 320. Under the condition that the relay S6 is closed, the current of the test power supply 700 can flow through the voltage dividing resistors R1 to R6 through the relay S6, the negative electrode end of the voltage dividing resistor R1 is connected with the port V0, the positive electrode end of the voltage dividing resistor R6 is respectively connected with the relay S6 and the port V6, and the voltage acquisition module 800 can acquire the voltage value of the battery module of the voltage dividing module 100 through the port V0 and the port V6. Meanwhile, the voltage acquisition module 800 may also acquire the voltage values of the voltage dividing resistors R1 to R6 through the ports V1 to V6 and the port V0, respectively, so as to acquire the voltage value of the battery module of the voltage dividing module 100.
As shown in fig. 3, according to some embodiments of the present utility model, the voltage conversion module 400 further includes a voltage conversion module 400, the voltage conversion module 400 includes a switching power supply 410 and a transformer 420, one end of the voltage conversion module 400 is connected to the relay 200, and the other end of the voltage conversion module 400 is connected to the test power supply 700.
It should be noted that, the tool test board 900 is further provided with a switching power supply 410 and a transformer 420, the switching power supply 410 and the transformer 420 form a voltage conversion module 400, the test power supply 700 is connected with the relay 200 through the voltage conversion module 400, and the voltage conversion module 400 can convert the voltage of the test power supply 700 into high voltage for supplying power to the relay 200.
It should be noted that, the voltage conversion module 400 in this embodiment may convert low voltage into high voltage for supplying power on the high voltage side, and may also isolate the voltage on the low voltage side of the test power supply 700 from the voltage on the high voltage side of the relay 200 to protect the test power supply 700.
It should be noted that, the switching power supply 410 may be classified into a boost power supply and a buck power supply according to voltage class conversion, and may be classified into an isolated power supply and a non-isolated power supply according to input-output relationship, and the test person may set the switch power supply according to actual situations, which is not limited herein.
As shown in fig. 3, according to some embodiments of the present utility model, a key module 510 and an MCU module 500 are further included, the key module 510 is connected with the MCU module 500, and the MCU module 500 is electrically connected with all relays 200.
It should be noted that, the present embodiment further includes a key module 510 and an MCU module 500, where the key module 510 is used for setting parameters. The MCU module 500 is electrically connected with each relay 210, and can control the closing condition of each relay 210, the key module 510 is connected with the MCU module 500, and the key module 510 can perform switch control on each relay 210 through the MCU module 500. The key module 510 may be a device such as a keyboard, which transmits a corresponding signal according to its triggering condition, and is not specifically limited herein. The research tester can select the serial number of the relay 210 needing to be closed in the tool test board 900 through the key module 510, thereby meeting the requirement of the required battery cell serial number and flexibly configuring the voltage value of the simulation battery module.
It should be noted that the communication processing of the MCU module 500 herein may be implemented in a conventional manner in the art, and is not specifically limited herein.
As shown in fig. 3, specifically, the key module 510 of the present embodiment is provided with parameters of 6 to 18, that is, the present embodiment can select 6 to 18 strings of battery cell modules; when the input parameter of the key module 510 is "8", the relay S8 is closed, and the current of the test power supply 700 can flow through the voltage dividing resistors R1 to R8, so that the voltage collecting module 800 can detect the voltage value of the voltage dividing module 100 through the connector 300. The tooling test board 900 at this time corresponds to a battery module with the number of battery strings being "8", and the port V0 and the port V8 of the voltage acquisition module 800 can acquire the voltage value of the battery module through the first sampling port 310 and the second sampling port 320 of the connector 300.
When the resistance values of the voltage dividing resistors 110 are the same, the value obtained by multiplying the serial number of the relay 210 by the voltage of the single voltage dividing resistor 110 is the voltage value of the analog battery module. When the resistance values of the voltage dividing resistors 110 are different, the second sampling ports 320 matched with the number of the voltage dividing resistors 100 can be provided, and the voltages of the voltage dividing resistors 110 are respectively collected through the first sampling ports 310 and the second sampling ports 320, and the addition of the voltage values of the voltage dividing resistors 110 is the voltage value of the analog battery module.
As shown in fig. 3, according to some embodiments of the present utility model, a voltage feedback module 530, an MCU module 500, and a display module 520 are further included, one end of the voltage feedback module 530 is connected to the relay 210, the other end of the voltage feedback module 530 is connected to the MCU module 500, and the MCU module 500 is connected to the display module 520.
It should be noted that, in this embodiment, a voltage feedback module 530, an MCU module 500, and a display module 520 are further provided, and the relay 210 is connected to the MCU module 500 through the voltage feedback module 530. When the relay 210 is closed, the voltage feedback module 530 can acquire the voltage value of the high-voltage side and feed back the voltage value to the MCU module 500, and the display module 520 is connected with the MCU module 500 and can read and display the voltage value acquired by the voltage feedback module 530, so that a research tester can intuitively observe the total voltage value of the current analog battery module when performing test work and adjust the total voltage value according to actual conditions, and the method is very flexible and convenient.
The display module 520 may be an LCD display, a speaker, an LED lamp set, or the like, and the specific display modes may be a numerical value, a sound, the number of LED lights, the color of the LED lights, or the like, which is not particularly limited herein. The display module 520 is configured to allow a research tester to intuitively understand a specific voltage value simulated by the current battery module.
It should be noted that the processing of the MCU module 500 herein can be implemented in a conventional manner in the art, and is not specifically limited herein.
As shown in fig. 3, according to some embodiments of the present utility model, a second power supply 600 is further included, and the second power supply 600 is connected to the MCU module 500 and the display module 520, respectively.
It should be noted that, in this embodiment, a second power supply 600 is further provided, where the second power supply 600 is connected to the MCU module 500 and the display module 520, respectively, and is used for supplying power to the MCU module 500 and the display module 520 by accessing a power supply voltage. The second power supply 600 can independently supply power to the MCU module 500 and the display module 520 without being affected by the interference of the test power supply 700. Meanwhile, the test power supply 700 is not required to supply power to the MCU module 500 and the display module 520, so that the problem that the test power supply 700 generates partial pressure due to power supply can be avoided, and the test effect is more accurate.
As shown in fig. 3, according to some embodiments of the present utility model, a signal isolation module 540 is further included, one end of the signal isolation module 540 is connected to the voltage feedback module 530, and the other end of the signal isolation module 540 is used to connect to the test power supply 700.
It should be noted that, in this embodiment, a signal isolation module 540 is further provided, where the signal isolation module 540 can isolate the low voltage of the test power supply 700 from the high voltage of the voltage feedback module 530, so as to protect the test power supply 700.
It should be noted that, the signal isolation module 540 may be composed of a transformer, or may be composed of other components with signal isolation function, which is not limited herein.
As shown in fig. 4, a second aspect of the present utility model provides a battery testing apparatus, which includes a testing power supply 700, a voltage collecting module 800, and a fixture testing board 900 according to the first aspect of the present utility model, where the fixture testing board 900 is provided with a plurality of voltage collecting modules 800, the number of the voltage collecting modules is matched with that of the fixture testing boards 900, each voltage collecting module 800 is respectively connected to each fixture testing board 900 in a one-to-one correspondence manner, and each fixture testing board 900 is connected to the testing power supply 700 in series.
According to the battery test equipment provided by the utility model, the battery test equipment comprises a test power supply 700, a voltage acquisition module 800 and a tool test board 900 according to the embodiment of the first aspect; the test power supply 700 is connected with the plurality of tool test boards 900, and is used for supplying power to the plurality of tool test boards 900, and the voltage acquisition module 800 is connected with each tool test board 900 in a one-to-one correspondence manner and is used for acquiring the voltage value simulated by each tool test board 900; according to the embodiment, the tool test boards 900 are used for simulating the battery modules with different strings, and the plurality of tool test boards 900 are arranged for serially simulating the battery modules of the whole vehicle, so that not only can manpower and material resources be saved, but also the number of the battery strings can be flexibly selected by a research tester when the test work is performed, and the efficiency of the test work is improved; the embodiment of the utility model has high flexibility, is convenient for users to use, and can also reduce the test cost.
It should be noted that, in the embodiment of the utility model, the battery modules with different serial numbers can be simulated through a hardware structure, and the improvement of the method is not involved.
The embodiments of the present utility model have been described in detail with reference to the accompanying drawings, but the present utility model is not limited to the above embodiments, and various changes can be made within the knowledge of one of ordinary skill in the art without departing from the spirit of the present utility model.
Claims (10)
1. A tooling test plate, characterized in that it is applied to battery test equipment, said tooling test plate comprising:
the voltage dividing module comprises a plurality of voltage dividing resistors which are connected in series, at least two positive ends of the voltage dividing resistors are respectively connected with the relay and the connector, and the other ends of the relays are connected with a test power supply.
2. The tooling test board of claim 1, wherein the number of relays is equal to or less than the number of voltage dividing resistors.
3. The tool test board of claim 1, wherein the connector comprises a first sampling port and a plurality of second sampling ports, the first sampling port is connected with the negative electrode end of the voltage dividing module, and the positive electrode ends of at least two voltage dividing resistors are respectively connected with the second sampling ports in a one-to-one correspondence manner.
4. A tooling test plate according to claim 3, wherein the number of second sampling ports matches the number of relays or the number of second sampling ports matches the number of voltage dividing resistors.
5. The tooling test board of claim 1, further comprising a voltage conversion module, wherein the voltage conversion module comprises a switching power supply and a transformer, one end of the voltage conversion module is connected with the relay, and the other end of the voltage conversion module is connected with a test power supply.
6. The tooling test board of claim 1, further comprising a key module and an MCU module, wherein the key module is connected to the MCU module, and wherein the MCU module is electrically connected to all of the relays.
7. The tooling test board of claim 1, further comprising a voltage feedback module, an MCU module and a display module, wherein one end of the voltage feedback module is connected to the relay, the other end of the voltage feedback module is connected to the MCU module, and the MCU module is connected to the display module.
8. The tooling test plate of claim 7, further comprising a second power source connected to the MCU module and the display module, respectively.
9. The tooling test plate of claim 7, further comprising a signal isolation module, wherein one end of the signal isolation module is connected to the voltage feedback module, and the other end of the signal isolation module is configured to be connected to a test power supply.
10. The battery test equipment is characterized by comprising a test power supply, voltage acquisition modules and tool test boards according to any one of claims 1-9, wherein the tool test boards are provided with a plurality of voltage acquisition modules, the number of the voltage acquisition modules is matched with that of the tool test boards, each voltage acquisition module is respectively connected with each tool test board in one-to-one correspondence, and each tool test board is connected with the test power supply in series.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223032848.1U CN219143048U (en) | 2022-11-14 | 2022-11-14 | Tool test board and battery test equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223032848.1U CN219143048U (en) | 2022-11-14 | 2022-11-14 | Tool test board and battery test equipment |
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| Publication Number | Publication Date |
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| CN219143048U true CN219143048U (en) | 2023-06-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202223032848.1U Active CN219143048U (en) | 2022-11-14 | 2022-11-14 | Tool test board and battery test equipment |
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| CN (1) | CN219143048U (en) |
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- 2022-11-14 CN CN202223032848.1U patent/CN219143048U/en active Active
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Address after: 518000 1-2 Floor, Building A, Xinwangda Industrial Park, No. 18 Tangjianan Road, Gongming Street, Guangming New District, Shenzhen City, Guangdong Province Patentee after: Xinwangda Power Technology Co.,Ltd. Address before: 518000 Xinwangda Industrial Park, No.18, Tangjia south, Gongming street, Guangming New District, Shenzhen City, Guangdong Province Patentee before: SUNWODA ELECTRIC VEHICLE BATTERY Co.,Ltd. |