Battery system electrical performance test tool

Abstract

The utility model discloses an electrical performance test tool for a battery system. The electrical performance test tool comprises a high-voltage wire harness junction box and a low-voltage wire harness junction box, a plurality of high-voltage wire harness connecting copper plates are arranged in the high-voltage wire harness junction box, an insulating partition plate is arranged between every two adjacent high-voltage wire harness connecting copper plates, and connecting ports are formed in the two ends of each high-voltage wire harness connecting copper plate; the test tool comprises a low-voltage wire harness junction box, a communication device is arranged in the low-voltage wire harness junction box, a low-voltage wire harness connecting terminal is arranged on the outer wall of the low-voltage wire harness junction box, and the interior of the low-voltage wire harness connecting terminal is communicated with the communication device and a test device. When the electrical performance of the power battery system is tested, the high-voltage wire harness and the low-voltage wire harness of the power battery system only need to be correspondingly connected to the wire harness access port of the test tool, so that the wire harness connection time before test is saved, the labor cost is reduced, and the test efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to battery testing device technical field, specifically a kind of battery system electric performance test tool. BACKGROUND

[0002] When power battery system carries out electric performance test, it needs to connect the positive and negative high-voltage line of power battery system 4 (each 2 current lines and voltage lines) to the positive and negative high-voltage line of charge-discharge detection cabinet, and the related voltage can reach more than 200V, and the low-voltage harness (including battery management system power line, communication line, wake-up line, external terminal resistance) is connected to the low-voltage harness end of charge-discharge detection cabinet, and insulation protection needs to be done during the connection of the harness to ensure the safety of the test process and the accuracy and stability of the wiring.

[0003] The existing harness connection mode: use bolts to pass through the connection holes of the high-voltage harness end to connect the positive and negative high-voltage lines of the power battery system to the positive and negative high-voltage lines of the charge-discharge detection cabinet, and then use insulation tape for insulation protection, which requires one hand to fix the nut and the other hand to turn the wrench to tighten the bolt, and two additional harnesses need to be fixed, and two people need to cooperate to operate if necessary, which is complicated and time-consuming and labor-intensive; the low-voltage harness is connected using a terminal, and the connection part cannot be fixed and often hangs in the air, which can easily cause the harness to fall during the test process, affecting the test progress. In addition, since there are many types and quantities of low-voltage harnesses, it is difficult to easily distinguish them by appearance, and direct connection can easily cause incorrect connection, and when external CAN communication equipment needs to be connected during the test process, the communication harness between the battery system and the external CAN communication equipment needs to be reconnected, and the test site has many scattered and messy harnesses. UTILITY MODEL CONTENTS

[0004] The utility model aims to provide a kind of battery system electric performance test tool to solve the problems raised in the above background.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0006] A kind of battery system electric performance test tool, comprising high-voltage harness terminal box, low-voltage harness terminal box;

[0007] A plurality of high-voltage harness connection copper plates are arranged in the high-voltage harness terminal box, and an insulating partition plate is arranged between adjacent high-voltage harness connection copper plates, and a connection port is arranged at both ends of the high-voltage harness connection copper plate;

[0008] A communication device is arranged in the low-voltage harness terminal box, and a low-voltage harness connection terminal is arranged on the outer wall of the low-voltage harness terminal box, and the low-voltage harness connection terminal is in communication with the communication device and the test equipment.

[0009] The high-voltage wire harness connecting copper plate is arranged in the high-voltage wire harness junction box, so that the high-voltage wire harness can be conveniently connected, and the insulating partition plate is arranged, so that the insulation does not need to be separately made, the steps are simplified, and the detection efficiency is improved.

[0010] As a further scheme of the utility model: the high-voltage wire harness junction box includes a high-voltage supporting bottom plate and a first side plate arranged on the high-voltage supporting bottom plate.

[0011] The high-voltage wire harness junction box is a box-shaped structure, and the wiring is arranged in the box body, so that the safety of the high-voltage wire harness is improved.

[0012] As a further scheme of the utility model: the high-voltage wire harness connecting copper plate is provided with two high-voltage wire harness connecting copper plates, and the two high-voltage wire harness connecting copper plates are fixedly connected to the high-voltage supporting bottom plate, and the first side plate is provided with a high-voltage wire harness inlet for the high-voltage wire harness to pass through.

[0013] Two high-voltage wire harness connecting copper plates are arranged, and the high-voltage wire harness inlet is formed in the side plate, so that the high-voltage wire harness enters the high-voltage wire harness junction box through the high-voltage wire harness inlet in the side plate and is connected to the two ends of the high-voltage wire harness connecting copper plate, and then the connection of the high-voltage wire harness can be realized.

[0014] As a further scheme of the utility model: the high-voltage wire harness connecting copper plate includes a positive connecting copper plate and a negative connecting copper plate, and the two ends of the positive connecting copper plate are respectively provided with a first positive connecting port and a second positive connecting port, and the two ends of the negative connecting copper plate are respectively provided with a first negative connecting port and a second negative connecting port.

[0015] The connecting ports are arranged, so that the high-voltage wire harness can be quickly connected to the high-voltage connecting copper plate, the connection difficulty is reduced, and the connection efficiency is improved.

[0016] As a further scheme of the utility model: the low-voltage wire harness junction box includes a low-voltage supporting plate and a second side plate arranged on the low-voltage supporting plate, and the high-voltage supporting bottom plate is rotationally connected to the second side plate on one side.

[0017] The high-voltage wire harness junction box is arranged at the upper end of the low-voltage wire harness junction box and is rotationally connected to the low-voltage wire harness junction box.

[0018] As a further scheme of the utility model: the communication equipment adopts CAN communication equipment, and the communication equipment includes USB CAN, CAN FD, CAN FD Bridge intelligent CAN FD network bridge.

[0019] The fusion of the traditional CAN network and the CAN FD network is realized, and the mutual conversion of the traditional CAN and the CAN FD is supported.

[0020] As a further scheme of the utility model: the communication equipment and the low-voltage wire harness connection terminal are connected with a switch, and the switch is located on the outer wall of the low-voltage wire harness junction box.

[0021] The external CAN communication equipment is integrated in the low-voltage wire harness junction box, one end of the switch is connected with the CAN communication line, and the other end is connected with the low-voltage wire harness connection terminal, so that the switch can be used to realize the on-off of the CAN equipment wire harness, and multiple CAN communication equipments can be integrated.

[0022] As a further scheme of the utility model: the low-voltage wire harness inlet is arranged on the outer wall of the low-voltage wire harness junction box, and the low-voltage wire of the test equipment enters the low-voltage wire harness junction box through the low-voltage wire harness inlet and communicates with the low-voltage wire harness connection terminal.

[0023] The wire harnesses of different CAN communication equipments are connected in parallel to the same interface of the low-voltage wire harness connection terminal through the switch, and when the test is carried out, the power battery pack is connected to the interface corresponding to the low-voltage wire harness connection terminal, and the connection with different CAN equipments can be realized through the switch without re-wiring.

[0024] As a further scheme of the utility model: the second side plate is provided with a communication wire harness outlet port, and the communication wire harness of the communication equipment communicates with the upper computer through the communication wire harness outlet port.

[0025] Compared with the prior art, the utility model has the advantages that:

[0026] 1. The test tool of the application is fixedly connected with the high-voltage and low-voltage wire harnesses of the charge-discharge detection cabinet, and when the electrical performance of the power battery system is tested, the high-voltage and low-voltage wire harnesses of the power battery system are only needed to be connected to the test tool wire harness connection inlet, thereby saving the time for wire harness connection before the test, reducing the labor cost, and improving the test efficiency.

[0027] 2. The test tool in the application has insulation protection, and does not need to be protected by an insulation tape again, thereby reducing the auxiliary material use cost, eliminating the risk of electric shock caused by accidental touch of personnel in the test process;

[0028] 3. The test tool of the application integrates different types of CAN communication equipment, supports the mutual conversion of traditional CAN and CANFD, can satisfy the communication between the charge-discharge detection cabinet and the power battery system with different communication protocols, the CAN communication box switch is arranged, when the communication line of the power battery system is connected, different CAN communication equipment can be selected and connected through the switch, the wire harness connection step is saved, the test efficiency is improved, the space occupation of the test auxiliary equipment and the wire harness mess are optimized, and the test site is kept clean. BRIEF DESCRIPTION OF DRAWINGS

[0029] Figure 1 For the test tool structure schematic diagram of this embodiment;

[0030] Figure 2 For the internal structure schematic diagram of high voltage wire harness junction box;

[0031] Figure 3 For the internal structure schematic diagram of low voltage wire harness junction box.

[0032] In the figure:

[0033] 1-high voltage wire harness junction box, 101-insulating cover plate, 102-cover plate handle, 103-first side plate, 104-insulating partition plate, 105-high voltage wire harness connection copper plate, 106-first positive connection port, 107-first negative connection port, 108-second positive connection port, 109-second negative connection port, 110-high voltage support bottom plate, 111-high voltage wire harness inlet;

[0034] 2-low voltage wire harness junction box, 201-low voltage support bottom plate, 202-second side plate, 203-low voltage wire harness connection terminal, 204-low voltage wire harness inlet, 205-communication equipment, 206-switching switch, 207-communication wire harness outlet port. DETAILED DESCRIPTION

[0035] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all the other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0036] Please refer to Figure 1 In the embodiments of the utility model, a battery system electrical performance test tool comprises a high voltage wire harness junction box 1 and a low voltage wire harness junction box 2.

[0037] The high-voltage wire harness junction box 1 comprises a high-voltage support bottom plate 110 and a first side plate 103 arranged on the high-voltage support bottom plate 110, an insulating cover plate 101 is arranged with a cover plate handle 102, a plurality of high-voltage wire harness connecting copper plates 105 are arranged in the high-voltage wire harness junction box 1, and an insulating partition plate 104 is arranged between adjacent high-voltage wire harness connecting copper plates 105. In this embodiment, two high-voltage wire harness connecting copper plates 105 are arranged, and the two high-voltage wire harness connecting copper plates 105 are fixedly connected to the high-voltage support bottom plate 110. The high-voltage wire harness connecting copper plate 105 comprises a positive connecting copper plate and a negative connecting copper plate. The positive connecting copper plate is respectively provided with a first positive connecting port 106 and a second positive connecting port 108 at two ends. The negative connecting copper plate is respectively provided with a first negative connecting port 107 and a second negative connecting port 109 at two ends. The first side plate 103 outside the first positive connecting port 106, the second positive connecting port 108, the first negative connecting port 107 and the second negative connecting port 109 is provided with a high-voltage wire harness inlet 111 for the high-voltage wire harness. By arranging two high-voltage wire harness connecting copper plates 105 and arranging the high-voltage wire harness inlet 111 on the side plate, the high-voltage wire harness enters the high-voltage wire harness junction box 1 from the high-voltage wire harness inlet 111 on the side plate and is connected to both ends of the high-voltage wire harness connecting copper plate 105, thereby realizing the connection of the high-voltage wire harness.

[0038] The low-voltage wire harness junction box 2 comprises a low-voltage support plate 201 and a second side plate 202 arranged on the low-voltage support plate 201. The high-voltage support bottom plate 110 is rotationally connected to one side of the second side plate 202. The low-voltage wire harness junction box 2 is provided with a communication device 205. The low-voltage wire harness junction box 2 is provided with a low-voltage wire harness connecting terminal 203 on the outer wall. The low-voltage wire harness connecting terminal 203 is in communication with the communication device and the test device. The low-voltage wire harness junction box 2 is provided with a low-voltage wire harness inlet 204 on the outer wall. The low-voltage wire of the test device enters the low-voltage wire harness junction box 2 through the low-voltage wire harness inlet 204 and is in communication with the low-voltage wire harness connecting terminal 203.

[0039] The communication device 205 adopts a CAN communication device, and the communication device 205 includes a USB CAN, a CAN FD, a CAN FD Bridge intelligent CAN FD network bridge, realizes fusion of a traditional CAN network and a CAN FD network, supports mutual conversion of the traditional CAN and the CAN FD, and the communication device 205 is connected with the low-voltage wire harness connection terminal 203 through a switch 206, the switch 206 is located on the outer wall of the low-voltage wire harness junction box 2, the external CAN communication device is integrated in the low-voltage wire harness junction box, one end of the switch is connected with a CAN communication line, and the other end is connected with the low-voltage wire harness connection terminal, so that the on-off of the CAN device wire harness can be realized through the switch, a plurality of CAN communication devices can be integrated, the wire harness of different CAN communication devices is connected in parallel to the same interface of the low-voltage wire harness connection terminal 203 through the switch, and when the test is carried out, the power battery pack is connected to the interface corresponding to the low-voltage wire harness connection terminal 203, the connection with different CAN devices can be realized through the switch without re-wiring.

[0040] In use, the insulating cover plate 101 is opened through the cover plate handle 102, the high-voltage wire harness connecting copper plate 105 in the insulating cover plate 101 is exposed, the high-voltage wire harness of the battery system is connected to the first positive connection port 106 and the first negative connection port 107, the second positive connection port 108 and the second negative connection port 109 are always connected with the high-voltage of the charge and discharge detection cabinet, and the connection of the high-voltage wire harness of the battery system is completed without repeated wiring connection, then the insulating cover plate is closed, the low-voltage wire harness of the battery system is connected to the low-voltage wire harness connection terminal 203, then the low-voltage wire harness connection terminal 203, the switch 206 and the communication device 205 are connected in communication, the required communication module can be selected through the switch 206, meanwhile, the low-voltage wire harness of the detection system enters the low-voltage wire harness junction box 2 through the low-voltage wire harness inlet 204 and is connected with the low-voltage wire harness of the battery system through the low-voltage wire harness connection terminal 203, and the connection of the battery system is completed, and the battery system can be tested through the detection system.

[0041] It is apparent for those skilled in the art that the present application is not limited to the details of the foregoing exemplary embodiments, and the present application can be implemented in other concrete forms without departing from the spirit or essential characteristics of the present application. Therefore, the foregoing embodiments should be considered in all aspects as exemplary and not restrictive, and the scope of the present application is defined by the appended claims rather than the foregoing description, and therefore all changes falling within the meaning and range of equivalents of the elements of the claims are intended to be embraced in the present application. Any reference signs in the claims should not be considered as limiting the claims to which they relate.

[0042] Furthermore, it should be understood that although the specification is described in terms of embodiments, not every embodiment includes only one independent technical solution, and the specification is described in this way only for the sake of clarity, and those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that those skilled in the art can understand.

Claims

1. A battery system electrical performance test fixture, comprising: The high-voltage wire harness junction box (1) and the low-voltage wire harness junction box (2) are provided. A plurality of high-voltage wire harness connection copper plates (105) are arranged in the high-voltage wire harness junction box (1), and an insulating partition plate (104) is arranged between adjacent high-voltage wire harness connection copper plates (105). A communication device (205) is arranged in the low-voltage wire harness junction box (2), and a low-voltage wire harness connection terminal (203) is arranged on the outer wall of the low-voltage wire harness junction box (2).

2. The battery system electrical performance test fixture of claim 1, wherein, The high-voltage wire harness junction box (1) comprises a high-voltage support bottom plate (110) and a first side plate (103) arranged on the high-voltage support bottom plate (110).

3. The battery system electrical performance test fixture of claim 2, wherein, The high-voltage wire harness connection copper plate (105) is provided with two high-voltage wire harness connection copper plates (105) which are fixedly connected to the high-voltage support bottom plate (110), and the first side plate (103) is provided with a high-voltage wire harness inlet (111) for the high-voltage wire harness.

4. The battery system electrical performance test fixture of claim 3, wherein, The high-voltage wire harness connection copper plate (105) comprises a positive connection copper plate and a negative connection copper plate, and the positive connection copper plate is provided with a first positive connection port (106) and a second positive connection port (108) at both ends, respectively.

5. The battery system electrical performance test fixture of claim 2, wherein, The low-voltage wire harness junction box (2) comprises a low-voltage support plate (201) and a second side plate (202) arranged on the low-voltage support plate (201), and the high-voltage support bottom plate (110) is rotationally connected to one side of the second side plate (202).

6. The battery system electrical performance test fixture of claim 1, wherein, The communication device (205) adopts a CAN communication device, and the communication device (205) comprises a USB CAN, a CAN FD, and a CAN FD bridge intelligent CAN FD network bridge.

7. The battery system electrical performance test fixture of claim 1, wherein, A switch (206) is connected between the communication device (205) and the low-voltage wire harness connection terminal (203), and the switch (206) is located on the outer wall of the low-voltage wire harness junction box (2).

8. The battery system electrical performance test fixture of claim 1, wherein, The outer wall of the low-voltage wire harness junction box (2) is provided with a low-voltage wire harness inlet (204), and the low-voltage wire of the test equipment enters the low-voltage wire harness junction box (2) through the low-voltage wire harness inlet (204) and communicates with the low-voltage wire harness connection terminal (203).

9. The battery system electrical performance test fixture of claim 5, wherein, The second side plate (202) is provided with a communication wire harness outlet port (207), and the communication wire harness of the communication device (205) communicates with the upper computer through the communication wire harness outlet port (207).

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