Non-contact BMS test tool

Abstract

The utility model discloses a non-contact BMS test tool. The non-contact BMS test tool comprises a test box body; the test control circuit board is arranged in the test box body; the first CAN communication interface, the second CAN communication interface, the first RS485 communication interface, the second RS485 communication interface, the first low-voltage wire harness interface, the second low-voltage wire harness interface, the first high-voltage wire harness interface, the second high-voltage wire harness interface, the first high-current wire harness interface, the second high-current wire harness interface and the power interface are arranged on the side face of the test box body and connected with the test control circuit board. According to the utility model, BMS board wiring and testing equipment are integrated, the time consumed by testing personnel on wiring is reduced, the production time is saved, and the production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of BMS testing devices, in particular to a contactless BMS testing tool. Background Art

[0002] The BMS board needs to be functionally tested before being assembled into the battery. The functions of each BMS board are composed of multiple modules. During the test, multiple devices need to be constantly switched, and multiple people need to work together to complete the test of each module. It takes a lot of time to wire, which is not conducive to mass production. At the same time, the testers are highly subjective in the process of testing the BMS board, which may cause errors in the judgment of the test results. In addition, some equipment is tested in a high voltage or high current environment, which poses certain safety hazards.

[0003] Therefore, the applicant has found a solution to the above-mentioned problem through beneficial exploration and research, and the technical solution to be introduced below is produced in this context. Utility Model Content

[0004] The technical problem to be solved by the utility model is: to provide a contactless BMS test tooling which improves test efficiency, saves time for replacing equipment and wiring, ensures the accuracy of test results, and ensures test safety in view of the deficiencies of the prior art.

[0005] The technical problem to be solved by the present invention can be achieved by adopting the following technical solutions:

[0006] A non-contact BMS test tool, comprising:

[0007] Test box body;

[0008] A test control circuit board disposed in the test box body;

[0009] A first and a second CAN communication interface are provided on the side of the test box body and connected to the test control circuit board, wherein the first and the second CAN communication interface are connected to the CAN communication interface of the BMS board to be tested and the detection end of the CAN communication detection device through the first and the second CAN communication signal lines;

[0010] A first and a second RS485 communication interface are provided on the side of the test box body and connected to the test control circuit board, wherein the first and the second RS485 communication interface are connected to the RS485 communication interface of the BMS board to be tested and the detection end of the RS485 communication detection device through the first and the second RS485 communication signal lines;

[0011] The first and second low-voltage harness interfaces are arranged on the side of the test box body and connected to the test control circuit board, and the first and second low-voltage harness interfaces are connected to the low-voltage input port of the BMS board to be tested and the power output end of the low-voltage power supply device through the first and second low-voltage harnesses;

[0012] The first and second high-voltage harness interfaces are arranged on the side of the test box body and connected to the test control circuit board, and the first and second high-voltage harness interfaces are connected to the high-voltage input port of the BMS board to be tested and the power output end of the high-voltage power supply device through the first and second high-voltage harnesses;

[0013] The first and second high-current harness interfaces are provided on the side of the test box body and connected to the test control circuit board, wherein the first and second high-current harness interfaces are connected to the charge and discharge current ports of the BMS board to be tested and the detection end of the charge and discharge detection device through the first and second high-current harnesses; and

[0014] A power interface is arranged on the side of the test box body and connected to the test control circuit board, and the power interface is connected to the power output terminal of an external power supply device through a power line.

[0015] In a preferred embodiment of the present invention, a receiving groove for placing the BMS board to be tested is formed on the top surface of the test box body.

[0016] In a preferred embodiment of the present invention, it further comprises a start button, a reset button, a power button and an emergency stop button which are arranged on the side of the test box body and are respectively connected to the test control circuit board.

[0017] In a preferred embodiment of the present invention, it further comprises a test operation fault light and a harness fault light which are arranged on the surface of the test box body and are respectively connected to the test control circuit board.

[0018] In a preferred embodiment of the present invention, it further comprises a liquid crystal display screen which is arranged on the surface of the test box body and connected to the test control circuit board.

[0019] Due to the adoption of the above technical solution, the beneficial effects of the utility model are: the utility model integrates the BMS board wiring and test equipment, reduces the time spent by testers on wiring, saves production hours, and improves production efficiency; at the same time, the utility model distinguishes and insulates all wiring on the BMS board, and testers will not be exposed to high voltage and high current, reducing the safety hazards of testers and protecting the safety of testers. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 It is a structural schematic diagram of the utility model.

[0022] Figure 2 It is a test flow chart of the utility model. DETAILED DESCRIPTION

[0023] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below with reference to specific illustrations.

[0024] See also Figure 1 , the figure shows a contactless BMS test tool, including a test box body 100, a test control circuit board (not shown in the figure), CAN communication interfaces 200a, 200b, RS485 communication interfaces 300a, 300b, low-voltage wiring harness interfaces 400a, 400b, high-voltage wiring harness interfaces 500a, 500b, high-current wiring harness interfaces 600a, 600b and a power supply interface 700.

[0025] The test box body 100 is a rectangular box body structure, and a receiving groove 110 is formed on the top surface thereof. The BMS board to be tested is placed in the receiving groove 110 for positioning.

[0026] The test control circuit board is arranged in the test box body 100 , and is integrated with a microprocessor controller and a plurality of control relays and other devices, so as to realize the on-off control and data processing between various interfaces.

[0027] The CAN communication interfaces 200a and 200b are arranged on the side of the test box body 100 and connected to the test control circuit board. They are connected to the CAN communication interface of the BMS board to be tested and the detection end of the CAN communication detection equipment through the first and second CAN communication signal lines, so that the CAN communication detection equipment can test the CAN communication function of the BMS board to be tested under the control of the test control circuit board.

[0028] The RS485 communication interfaces 300a and 300b are arranged on the side of the test box body 100 and connected to the test control circuit board. They are connected to the RS485 communication interface of the BMS board to be tested and the detection end of the RS485 communication detection device through the first and second RS485 communication signal lines, so that the RS485 communication detection device tests the RS485 communication function of the BMS board to be tested under the control of the test control circuit board.

[0029] The low-voltage harness interfaces 400a, 400b are arranged on the side of the test box body 100 and are connected to the test control circuit board. They are connected to the low-voltage input port of the BMS board to be tested and the power output end of the low-voltage power supply device through the first and second low-voltage harnesses, so that the low-voltage power supply device provides low voltage to the BMS board under the control of the test control circuit board.

[0030] The high-voltage harness interfaces 500a, 500b are arranged on the side of the test box body 100 and are connected to the test control circuit board. They are connected to the high-voltage input port of the BMS board to be tested and the power output end of the high-voltage power supply device through the first and second high-voltage harnesses, so that the high-voltage power supply device provides high voltage to the BMS board under the control of the test control circuit board.

[0031] The high-current harness interfaces 600a and 600b are arranged on the side of the test box body 100 and connected to the test control circuit board. They are connected to the charge and discharge current ports of the BMS board to be tested and the detection end of the charge and discharge detection equipment through the first and second high-current harnesses, so that the charge and discharge detection equipment provides a large current to the BMS board under the control of the test control circuit board.

[0032] The power interface 700 is arranged on the side of the test box body 100 and is connected to the test control circuit board. It is connected to the power output terminal of the external power supply device through a power line to provide the test control circuit board and the BMS board to be tested with the required power for operation.

[0033] The contactless BMS test tool of the present invention also includes a start button 810, a reset button 820, a power button 830 and an emergency stop button 840. The start button 810, the reset button 820, the power button 830 and the emergency stop button 840 are arranged on the side of the test box body 100 and are respectively connected to the test control circuit board. Among them, the start button 810 does not have a self-locking function, and its function is to start the contactless BMS test tool; the reset button 820 has a self-locking function, and its function is to be used when putting in or taking out the BMS board. The reset button 820 is in a normally closed state when not pressed, and the BMS board cannot be put into the specified position. When the reset button 820 is pressed, it is in a normally open state, and the BMS board can be put in and taken out in the normally open state. The contactless BMS test tool is in a normally closed state when it is in working state; the power button 830 is used to control the opening and closing of the 220VAC power supply; the emergency stop button 840 is used to suspend the test during the test.

[0034] The non-contact BMS test fixture of the present invention further includes a test operation fault light 910 and a harness fault light 920, which are arranged on the surface of the test box body 100 and are respectively connected to the test control circuit board. Among them, the function of the test operation fault light 910 is that the green light is always on to indicate that the non-contact BMS test fixture is not in operation, and the red light is always on to indicate that the non-contact BMS test fixture is in working state; the function of the harness fault light 920 is that the green light is always on to indicate that the harness is normal, and the red light is always on to indicate that a short circuit or a short circuit fault occurs, and the buzzer sounds an alarm.

[0035] The contactless BMS test tool of the present invention also includes a liquid crystal display screen 1000, which is arranged on the surface of the test box body 100 and connected to the test control circuit board. The liquid crystal display screen 1000 is used to display operating data, test results and other contents so that the test personnel can understand the test situation.

[0036] See also Figure 2 The testing process of the non-contact BMS testing tool of the utility model is as follows:

[0037] 1. Connect the corresponding interface of the test box 100 to the corresponding interface of the BMS board to be tested;

[0038] 2. After the power button 830 is turned on, the low-voltage wiring harness, high-voltage wiring harness and high-current wiring harness have self-check functions. If there is a short circuit or disconnection, the wiring harness fault light 920 will be always red and an alarm will sound. The non-contact BMS test tooling will not work until the fault is cleared;

[0039] 3. When the self-test functions of the low-voltage wiring harness, high-voltage wiring harness, and high-current wiring harness are detected to be normal, press the reset button 820 and put the BMS board to be tested into the receiving slot 110 of the test box body 100;

[0040] 4. Press the start button 810, and the BMS test tooling will enter the working state until the test is completed;

[0041] 5. If the test needs to be paused during the test, the emergency stop button 840 can be pressed. After pressing the emergency stop button 840, the test ends. If the BMS board needs to be removed, the reset button 820 needs to be pressed to remove the BMS board and the test ends.

[0042] The utility model integrates the BMS board wiring and test equipment, reduces the time spent by testers on wiring, saves production hours, and improves production efficiency; at the same time, the utility model distinguishes and insulates all wiring on the BMS board, so that testers will not be exposed to high voltage and high current, reduces the safety hazards of testers, and protects the safety of testers.

[0043] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A contactless BMS test tool, characterized in that: include: Test box body; A test control circuit board disposed in the test box body; A first and a second CAN communication interface are provided on the side of the test box body and connected to the test control circuit board, wherein the first and the second CAN communication interface are connected to the CAN communication interface of the BMS board to be tested and the detection end of the CAN communication detection device through the first and the second CAN communication signal lines; A first and a second RS485 communication interface are provided on the side of the test box body and connected to the test control circuit board, wherein the first and the second RS485 communication interface are connected to the RS485 communication interface of the BMS board to be tested and the detection end of the RS485 communication detection device through the first and the second RS485 communication signal lines; The first and second low-voltage harness interfaces are arranged on the side of the test box body and connected to the test control circuit board, and the first and second low-voltage harness interfaces are connected to the low-voltage input port of the BMS board to be tested and the power output end of the low-voltage power supply device through the first and second low-voltage harnesses; The first and second high-voltage harness interfaces are arranged on the side of the test box body and connected to the test control circuit board, and the first and second high-voltage harness interfaces are connected to the high-voltage input port of the BMS board to be tested and the power output end of the high-voltage power supply device through the first and second high-voltage harnesses; The first and second high-current harness interfaces are provided on the side of the test box body and connected to the test control circuit board, wherein the first and second high-current harness interfaces are connected to the charge and discharge current ports of the BMS board to be tested and the detection end of the charge and discharge detection device through the first and second high-current harnesses; and A power interface is arranged on the side of the test box body and connected to the test control circuit board, and the power interface is connected to the power output terminal of an external power supply device through a power line.

2. The contactless BMS test tool as claimed in claim 1, characterized in that: A receiving groove for placing the BMS board to be tested is formed on the top surface of the test box body.

3. The contactless BMS test tool as claimed in claim 1, characterized in that: It also includes a start button, a reset button, a power button and an emergency stop button which are arranged on the side of the test box body and are respectively connected to the test control circuit board.

4. The contactless BMS test tool as claimed in claim 2, characterized in that: It also includes a test operation fault light and a harness fault light which are arranged on the surface of the test box body and are respectively connected to the test control circuit board.

5. The contactless BMS testing tool as claimed in claim 3, characterized in that: It also includes a liquid crystal display screen which is arranged on the surface of the test box body and connected to the test control circuit board.

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