Testing device for power battery module

Abstract

The utility model relates to the technical field of new energy measurement, in particular to a testing device for a power battery module, which comprises a testing box cover, a banana plug, a testing box body, a fuse terminal, a guide rail, a standard quick socket and a multi-core flexible cable. The banana plugs are fixedly connected to the top of the test box cover, the bottoms of the banana plugs are connected with the terminals with the fuses through welding wires, one banana plug is connected with one terminal, the terminals with the fuses are connected with the guide rail, and the guide rail is fixed to the bottom of the test box body through screws at the two ends. According to the utility model, the internal voltage data of the battery module is safely and reliably connected to the banana plugs of the test box, the safety and reliability of the measurement process are ensured, and meanwhile, the series-parallel measurement of different battery cells in the battery module is realized through the short-circuit wires among the different banana plugs, so that the accuracy of the measured data is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of new energy measurement, in particular to a testing device for a power battery module. Background Art

[0002] At present, port loading and unloading equipment is driven by traditional diesel engines and is gradually transitioning to clean power battery drive. As a new thing, there is no standard specification for monitoring and measuring the battery status in the daily maintenance of equipment. On-site maintenance personnel generally use simple measuring tools to directly measure the battery modules.

[0003] Currently, there are no supporting tools specifically for power battery module measurement on the market. Generally, the status of the battery module is checked by the battery module's own BMS (battery management system). The reliability of the system is not very high and sometimes it is easy to cause misdiagnosis. The traditional direct measurement of battery module data is to use a digital multimeter to measure the pin voltage of the battery module's external quick plug. This method has safety hazards. Improper operation can easily lead to battery short circuit, or inaccurate measurement data, and it is impossible to find the fault point. Utility Model Content

[0004] The purpose of the utility model is to provide a testing device for a power battery module to solve the problems raised in the above background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A test device for a power battery module, comprising: a test box cover, a banana plug, a test box body, a fuse terminal, a guide rail, a standard quick socket and a multi-core flexible cable;

[0007] The test box cover is connected to the top of the test box body, the banana plug is fixedly connected to the top of the test box cover, the bottom of the banana plug is welded with a wire connected to the fused terminal, and one banana plug is connected to a terminal, the fused terminal is connected to a guide rail, and the guide rail is fixed to the bottom of the test box body by screws at both ends, one side of the standard quick socket is connected to the fused terminal and the pin of the standard quick socket by a wire, and the other side is connected to the battery cable.

[0008] Preferably, one side of the multi-core flexible cable is connected with a standard quick plug.

[0009] Specifically, the standard quick plug is used to connect with the standard quick socket on the test box.

[0010] Preferably, one side of the multi-core flexible cable is connected to a battery module quick plug.

[0011] Specifically, the battery module quick plug is used to connect to the battery module quick socket.

[0012] Preferably, the test box cover and the test box body are made of insulating material.

[0013] Specifically, it is convenient to form a sealed insulating box, thereby facilitating detection.

[0014] Preferably, short-circuit wires are provided between the banana plugs.

[0015] Specifically, the series and parallel measurements of different cells in the battery module are realized, which greatly improves the accuracy of the measurement data.

[0016] Preferably, each terminal with a fuse terminal has two ends, one end of which is connected to a banana plug through a wire, and the other end is connected to a lead pin of a standard quick socket.

[0017] Specifically, this arrangement facilitates detection.

[0018] Preferably, the top of the test box cover is threadedly connected with fastening bolts, and the number of the fastening bolts is four.

[0019] Specifically, such an arrangement can improve the sealing of the test box.

[0020] Compared with the prior art, the beneficial effects of the utility model are:

[0021] The utility model converts the quick plugs of power battery modules of different manufacturers into standard plugs through the form of customized cables and connects them with the special test device. The special test device of the utility model is a high-strength insulation test box. The box body is equipped with a standard quick plug which is connected with the battery module through the customized cable. A row of terminals with fuses are installed inside the box body. The box cover is equipped with a banana plug. The quick plug is connected with the banana plug through the terminal with a wire, so that the plug of the battery module can safely and reliably connect the internal voltage data of the battery module to the banana plug of the test box through the test device of the utility model, thereby ensuring the safety and reliability of the measurement process. At the same time, different banana plugs are connected by short-circuiting to realize the series and parallel measurement of different cells in the battery module, thereby greatly improving the accuracy of the measurement data. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of the test box cover in the utility model;

[0023] Figure 2 It is a structural schematic diagram of the test box body in the utility model;

[0024] Figure 3 It is a structural schematic diagram of the multi-core flexible cable in the utility model.

[0025] In the figure: 1. Test box cover; 7. Multi-core flexible cable; 2. Banana plug; 3. Test box body; 4. Fuse terminal; 5. Guide rail; 6. Standard quick socket; 8. Standard quick plug; 9. Battery module quick plug. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] like Figure 1-3 As shown, a test device for a power battery module comprises: a test box cover 1, a banana plug 2, a test box body 3, a fuse terminal 4, a guide rail 5, a standard quick socket 6 and a multi-core flexible cable 7, one side of the multi-core flexible cable 7 is connected with a standard quick plug 8, the standard quick plug 8 is used to connect with the standard quick socket 6 on the test box, one side of the multi-core flexible cable 7 is connected with a battery module quick plug 9, the battery module quick plug 9 is used to connect with the battery module quick socket, the test box cover 1 is connected to the top of the test box body 3, the test box cover 1 and the test box body 3 are made of insulating material, which is convenient to form a sealed insulating box, so as to facilitate detection, the top of the test box cover 1 is threadedly connected with a fastening bolt, and the number of fastening bolts is four, so that The sealing performance of the test box can be improved. The banana plug 2 is fixedly connected to the top of the test box cover 1. The bottom of the banana plug 2 is welded with a wire to connect the fuse terminal 4, and one banana plug 2 is connected to a terminal. The banana plugs 2 are short-circuited to realize the series and parallel measurement of different cells in the battery module, which greatly improves the accuracy of the measurement data. The fuse terminal 4 is connected to the guide rail 5. The two ends of each terminal of the fuse terminal 4 are connected to the banana plug 2 through a wire, and the other end is connected to the lead pin of the standard quick socket 6. This arrangement is convenient for detection. The guide rail 5 is fixed to the bottom of the test box body 3 by screws at both ends. One side of the standard quick socket 6 is connected to the fuse terminal 4 and the lead pin of the standard quick socket 6 through a wire, and the other side is connected to the battery cable.

[0028] Specifically, one side of the multi-core flexible cable 7 is connected to a standard quick plug 8, and the standard quick plug 8 is used to connect to the standard quick socket 6 on the test box. One side of the multi-core flexible cable 7 is connected to a battery module quick plug 9, and the battery module quick plug 9 is used to connect to the battery module quick socket. The test box cover 1 and the test box body 3 are made of insulating material, which is convenient for forming a sealed insulating box, thereby facilitating detection. The banana plugs 2 are short-circuited to achieve series and parallel measurement of different cells in the battery module, which greatly improves the accuracy of the measurement data. The two ends of each terminal with a fuse terminal 4 are connected to the banana plug 2 through a wire at one end, and the lead pin of the standard quick socket 6 at the other end. This arrangement is convenient for detection. The top of the test box cover 1 is threadedly connected with a fastening bolt, and the number of fastening bolts is four. This arrangement can improve the sealing of the test box.

[0029] The working principle of the utility model is as follows: the utility model converts the quick plugs of power battery modules of different manufacturers into standard plugs through customized cables and connects them to a special test device. The traditional test method is to use a digital multimeter to measure the voltage data between the pins of the battery module quick plug 9. Different pins represent the connection method of different battery cells inside the battery module. This measurement method may easily lead to battery short circuit and damage to the battery pack if it is not operated carefully. The special test device of the utility model is a high-strength insulation test box. A standard quick plug 8 is installed on the box body and connected to the battery module through a customized cable. A row of terminals with fuses are installed inside the box body, and a banana plug 2 is installed on the box cover. The quick plug is connected to the banana plug 2 through the terminal with a wire, so that the plug of the battery module can be safely and reliably connected to the banana plug 2 of the test box through the test device of the utility model, thereby ensuring the safety and reliability of the measurement process. At the same time, different banana plugs 2 are connected by short-circuiting to realize series and parallel measurement of different battery cells in the battery module, which greatly improves the accuracy of the measurement data.

[0030] The above shows and describes the basic principle, main features and 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 preferred examples of the utility model and are not used to limit 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 of the utility model is defined by the attached claims and their equivalents.

Claims

1. A testing device for a power battery module, characterized in that: include: Test box cover (1), banana plug (2), test box body (3), fuse terminal (4), guide rail (5), standard quick socket (6) and multi-core flexible cable (7); The test box cover (1) is connected to the top of the test box body (3), the banana plug (2) is fixedly connected to the top of the test box cover (1), the bottom of the banana plug (2) is welded with a wire connected to the fuse terminal (4), and one banana plug (2) is connected to a terminal, the fuse terminal (4) is connected to a guide rail (5), and the guide rail (5) is fixed to the bottom of the test box body (3) by screws at both ends, one side of the standard quick socket (6) is connected to the fuse terminal (4) and the lead pin of the standard quick socket (6) by a wire, and the other side is connected to the battery cable.

2. The power battery module testing device according to claim 1, characterized in that: One side of the multi-core flexible cable (7) is connected with a standard quick plug (8).

3. The power battery module testing device according to claim 1, characterized in that: One side of the multi-core flexible cable (7) is connected to a battery module quick plug (9).

4. The power battery module testing device according to claim 1, characterized in that: The test box cover (1) and the test box body (3) are made of insulating material.

5. The power battery module testing device according to claim 1, characterized in that: A shorting wire is provided between the banana plugs (2).

6. The power battery module testing device according to claim 1, characterized in that: The two ends of each terminal with fuse terminal (4) are connected to a banana plug (2) at one end through a wire, and connected to the lead pin of a standard quick socket (6) at the other end.

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