Single-string and multi-string testing device used in power battery module

Abstract

The utility model provides a single-string and multi-string testing device used in a power battery module. The testing device comprises a base plate, a supporting assembly, a guide rail assembly and a probe assembly. The support assembly is arranged on the base plate, the guide rail assembly is arranged on the support assembly, the probe assembly comprises a first probe and a second probe, and the first probe and the second probe are respectively arranged on two parallel guide rails in the guide rail assembly; the position of the probe assembly is adjusted through the guide rail assembly and the supporting assembly, so that the device can be suitable for testing modules with different sizes and different battery numbers, can be used for testing a single string or multiple strings in the modules, can also be used for testing a single battery, and can also be used for testing fault charging and discharging of a single battery without a tab. And the efficiency of testing the battery system fault is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to battery technical field, especially relate to a test device for single string and multiple strings in power battery module. BACKGROUND

[0002] The performance of battery directly influences electric automobile, therefore, the battery manufacturer will test all kinds of performance of battery system, when the test process of battery system if certain test battery pack appears unqualified condition, need to disassemble test battery system, replace certain or several possible fault battery pack or single battery.

[0003] However, since battery module is combined by multiple single batteries through series or parallel, cannot directly locate fault single battery through test data of module, so need to test certain string or several strings of single, and since single battery is assembled through busbar welding connection, the welding spot of welding place cannot carry out secondary welding tab, so the fault test of battery module or single string battery in battery module is inconvenient.

[0004] Therefore, it is necessary to design a test device for single string and multiple strings in power battery module to solve the above technical problems. UTILITY MODEL CONTENTS

[0005] In view of the above problems, the utility model provides a test device for single string and multiple strings in power battery module, including base plate, support assembly, guide rail assembly and probe assembly, the support assembly is arranged on the base plate, the guide rail assembly is arranged on the support assembly, the probe assembly includes first probe and second probe, and the first probe and the second probe are arranged on two parallel guide rails in the guide rail assembly.

[0006] Specifically, the position of the probe assembly is adjusted by the guide rail assembly and the support assembly, which can be suitable for module test of different sizes and different battery quantities, can test single string or multiple strings in the module, and can also be used for single battery test, realizing fault charge and discharge test of single battery without tab, which is beneficial to improve the efficiency of test battery system fault.

[0007] In any embodiment, it further includes fixed bolt assembly and movable bolt assembly, the fixed bolt assembly includes first fixed bolt, second fixed bolt, third fixed bolt and fourth fixed bolt arranged on the support assembly correspondingly, and the movable bolt assembly includes first movable bolt, second movable bolt, third movable bolt and fourth movable bolt installed on the guide rail assembly correspondingly.

[0008] Specifically, the support assembly and the guide rail assembly are screwed together through the movable bolt assembly and the fixed bolt assembly, ensuring the stability and reliability of the testing device, and facilitating disassembly and maintenance.

[0009] In any embodiment, the upper surface of the base plate is provided with a plurality of internally threaded mounting holes, and every four mounting holes are arranged in a rectangular shape to form a group; the support assembly comprises a first support column, a second support column, a third support column, and a fourth support column which are screwed to the mounting holes; the guide rail assembly comprises a first guide rail, a second guide rail, a third guide rail, and a fourth guide rail; the first guide rail is fixed between the first support column and the second support column, the second guide rail is fixed between the third support column and the fourth support column, the third guide rail and the fourth guide rail are respectively mounted at the two ends of the first guide rail and the second guide rail, and the third guide rail and the fourth guide rail are provided with a movable bolt assembly at the connection position with the first guide rail and the second guide rail.

[0010] Specifically, the first guide rail and the second guide rail are horizontally placed between the support assembly, which can ensure the stability of the guide rail and the stability of the probe assembly during testing, thereby reducing the test errors caused by shaking or misalignment.

[0011] In any embodiment, the first guide rail is horizontally placed between the first support column and the second support column, and the second guide rail is horizontally placed between the third support column and the fourth support column; the third guide rail is horizontally fixed between the first guide rail and the second guide rail, and the fourth guide rail is horizontally fixed between the first guide rail and the second guide rail.

[0012] Specifically, by specifying the placement and connection relationship of the guide rail assembly, especially the fixing mode between the third guide rail and the fourth guide rail and the first guide rail and the second guide rail, the guide rail assembly can stably support the probe assembly and accurately adjust the position.

[0013] In any embodiment, the third guide rail and the fourth guide rail are both provided with a probe assembly, wherein a first probe is mounted on the third guide rail, and a second probe is mounted on the fourth guide rail; the number of the first probe and the second probe is both multiple, and they are respectively moved along the sliding rail direction of the third guide rail and the fourth guide rail.

[0014] Specifically, by setting the number of the first probe and the second probe to be multiple and moving them along the sliding rail direction of the third guide rail and the fourth guide rail, the probe assembly can adapt to power battery modules of different sizes and arrangements, improving the flexibility and versatility of the testing device.

[0015] In any embodiment, the base plate and the support assembly are made of insulating material.

[0016] Specifically, by specifying the base plate and the support assembly as insulating materials, electrical safety during testing is ensured, preventing potential risks such as current leakage and short circuits.

[0017] In any embodiment, the outer thread of the support assembly is adapted to the inner thread of the mounting hole.

[0018] Specifically, by adapting the outer thread of the support assembly to the inner thread of the mounting hole, it is ensured that the support assembly can be securely mounted on the base plate, improving the stability and accuracy of the testing device

[0019] In any embodiment, the distance between the first support column and the second support column is greater than the width of the sample.

[0020] In any embodiment, the first guide rail and the second guide rail have the same horizontal height and are higher than the height of the sample.

[0021] Specifically, by making the distance between the first support column and the second support column greater than the width of the sample, this design allows the testing device to accommodate larger size power battery modules, improving the application range of the testing device.

[0022] In any embodiment, the first probe and the second probe are located directly above the positive and negative electrodes of the battery.

[0023] Specifically, the probe assembly can more easily contact the positive and negative electrodes of the battery, improving the accuracy and efficiency of the test.

[0024] The beneficial effects of the present utility model are as follows:

[0025] The present utility model can adjust the position of the probe assembly through the guide rail assembly and the support assembly, and can be applied to the testing of modules of different sizes and different numbers of batteries, and can test single or multiple strings in the module, and can also be used for testing a single battery, realizing fault charging and discharging test of single battery without tabs, and improving the efficiency of testing battery system faults.

[0026] Other features and advantages of the present utility model will be described in the subsequent specification, and some will become apparent from the specification, or will be understood by implementing the present utility model. The purpose and other advantages of the present utility model can be realized and obtained through the structure indicated in the specification, claims and drawings. BRIEF DESCRIPTION OF DRAWINGS

[0027] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings described below are some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.

[0028] Figure 1 It is a schematic diagram of the overall structure of the present application.

[0029] Figure 2 It is a schematic diagram of the side view of the present application.

[0030] Figure 3 It is a schematic diagram of the top view of the present application.

[0031] Figure 4 It is a schematic diagram of the front view of the present application.

[0032] Figure 5 It is a schematic diagram of the probe assembly position adjustment of the present application.

[0033] Wherein: 1, base plate; 11, mounting hole; 2, support assembly; 21, first support column; 22, second support column; 23, third support column; 24, fourth support column; 3, fixed bolt assembly; 31, first fixed bolt; 32, second fixed bolt; 33, third fixed bolt; 34, fourth fixed bolt; 4, guide rail assembly; 41, first guide rail; 42, second guide rail; 43, third guide rail; 44, fourth guide rail; 5, movable bolt assembly; 51, first movable bolt; 52, second movable bolt; 53, third movable bolt; 54, fourth movable bolt; 6, probe assembly; 61, first probe; 62, second probe. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical scheme and advantages of the embodiments of the present application more clear, the following will combine the drawings in the embodiments of the present application to clearly and completely describe the technical scheme in the embodiments of the present application. Obviously, the described embodiments are some embodiments of the present application, not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0035] As Figures 1-5As shown, the utility model provides a kind of for the testing device of single string of power battery module in, including base plate 1, support component 2, guide rail component 4 and probe component 6;Several internal thread mounting holes 11 are provided on the upper surface of the base plate 1, and every four rectangular distribution mounting hole 11 is a group;The support component 2 includes the first support column 21, second support column 22, third support column 23 and fourth support column 24 with mounting hole 11 adaptation thread installation;The fixed bolt component 3 includes the first fixed bolt 31, second fixed bolt 32, third fixed bolt 33 and fourth fixed bolt 34 corresponding arranged on support component 2;The guide rail component 4 includes first guide rail 41, second guide rail 42, third guide rail 43 and fourth guide rail 44;Wherein, the first guide rail 41 is fixed between the first support column 21 and the second support column 22, the second guide rail 42 is fixed between the third support column 23 and the fourth support column 24, the third guide rail 43 and the fourth guide rail 44 two ends are installed on the first guide rail 41 and the second guide rail 42 respectively, and the third guide rail 43 and the fourth guide rail 44 are provided with movable bolt component 5 at the connection of first guide rail 41 and second guide rail 42;The movable bolt component 5 includes the first movable bolt 51, second movable bolt 52, third movable bolt 53 and fourth movable bolt 54 corresponding installed on guide rail component 4;The probe component 6 includes the first probe 61 and the second probe 62 arranged on guide rail component 4.

[0036] The utility model will be described in detail below.

[0037] In some embodiments of the utility model, as shown in Figure 1 、 Figure 2 The first guide rail 41 is horizontally placed between the first support column 21 and the second support column 22, and the second guide rail 42 is horizontally placed between the third support column 23 and the fourth support column 24.

[0038] In some embodiments of the utility model, the third guide rail 43 is horizontally fixed between the first guide rail 41 and the second guide rail 42, and the fourth guide rail 44 is horizontally fixed between the first guide rail 41 and the second guide rail 42.

[0039] In some embodiments of the utility model, as shown in Figure 1 、 Figure 3 The third guide rail 43 and the fourth guide rail 44 are both provided with probe component 6, wherein the first probe 61 is installed on the third guide rail 43, and the second probe 62 is installed on the fourth guide rail 44;The number of the first probe 61 and the second probe 62 is set to multiple, and moves along the sliding rail direction of the third guide rail 43 and the fourth guide rail 44 respectively.

[0040] In some embodiments of the utility model, the base plate 1, support assembly 2 are insulating material, the outer circle thread of support assembly 2 is adapted to the internal thread of mounting hole 11, and the mounting hole 11 is favorable to fixing support assembly 2 on the proper position of base plate 1,

[0041] In some embodiments of the utility model, as shown in Figure 4 The distance between the first support column 21 and the second support column 22 is greater than the width of the sample, and the fixing bolt assembly 3 is favorable to adjusting the horizontal height of the first guide rail 41 and the second guide rail 42 to be consistent.

[0042] In some embodiments of the utility model, as shown in Figure 2 、 Figure 4 The horizontal height of the first guide rail 41 and the second guide rail 42 is consistent and higher than the height of the sample; the first probe 61 and the second probe 62 are located directly above the positive and negative poles of the battery; the flow capacity of the probe assembly 6 is not less than the highest requirement of the battery, the distance between the third guide rail 43 and the fourth guide rail 44 can be adjusted by adjusting the movable bolt assembly 5, and the first probe 61 and the second probe 62 can be adjusted to be directly above the positive and negative poles of the battery by adjusting the distance between the third guide rail 43 and the fourth guide rail 44, thereby facilitating the testing of the battery.

[0043] In some embodiments of the utility model, the following examples are given (the specific data can be modified according to the actual situation), when measuring single string battery, the distance between the first support column 21 and the second support column 22 is 200mm, the height of the first guide rail 41 and the second guide rail 42 is 120mm, the distance between the third guide rail 43 and the fourth guide rail 44 is 150, and the direct distance between the first probe 61 and the second probe 62 and the distance perpendicular to the third guide rail 43 and the fourth guide rail 44 are both 80mm. When measuring multi-string battery, the direct distance between the first probe 61 and the second probe 62 is 100mm, and the distance perpendicular to the third guide rail 43 and the fourth guide rail 44 is 80mm.

[0044] Working principle: place the sample to be measured in the middle position limited by the support column 2 on the base plate 1, keep the direction of the positive and negative poles of the battery parallel to the first guide rail 41 and the second guide rail 42, adjust the movable bolt assembly 5 to make the distance between the first probe 61 and the second probe 62 perpendicular to the third guide rail 43 and the fourth guide rail 44 consistent with the distance between the positive and negative poles of the battery. Adjust the fixing bolt assembly 3 to fix the first guide rail 41 and the second guide rail 42 on the proper height position of the support assembly 2, so that the first probe 61 and the second probe 62 are connected with the positive and negative poles of the battery respectively, and then the battery is tested for fault.

[0045] In summary, by adjusting the position of the probe assembly through the guide rail assembly and the support assembly, the module test of different sizes and different battery numbers can be applied, the single string or multiple strings in the module can be tested, and the single battery test can also be used to realize the fault charge and discharge test of the single battery without the tab, and the efficiency of testing the battery system fault is improved.

[0046] The above merely describes preferred embodiments of the present application and is not intended to limit the present application in any form. Although the preferred embodiments of the present application have been disclosed above, they are not intended to limit the present application. Any person skilled in the art can make some changes or modifications to the above disclosed technical content without departing from the scope of the technical scheme of the present application to obtain equivalent embodiments with equivalent changes. Any simple modification, equivalent change and modification of the above embodiments made according to the technical essence of the present application still belong to the scope of the technical scheme of the present application.

Claims

1. A testing device for single string and multi-string in a power battery module, characterized in that, It comprises a base plate (1), a support assembly (2), a guide rail assembly (4), and a probe assembly (6); The support assembly (2) is arranged on the base plate (1), the guide rail assembly (4) is arranged on the support assembly (2), and the probe assembly (6) comprises a first probe (61) and a second probe (62), and the first probe (61) and the second probe (62) are arranged on two parallel guide rails in the guide rail assembly (4) respectively.

2. The testing device for single string and multi-string in power battery module according to claim 1, characterized in that, It also comprises a fixed bolt assembly (3) and a movable bolt assembly (5); The fixed bolt assembly (3) comprises a first fixed bolt (31), a second fixed bolt (32), a third fixed bolt (33), and a fourth fixed bolt (34) arranged on the support assembly (2) correspondingly; The movable bolt assembly (5) comprises a first movable bolt (51), a second movable bolt (52), a third movable bolt (53), and a fourth movable bolt (54) installed on the guide rail assembly (4) correspondingly.

3. The testing device for single string and multi-string in power battery module according to claim 1, characterized in that, The upper surface of the base plate (1) is provided with a plurality of internally threaded mounting holes (11), and every four mounting holes (11) arranged in a rectangular shape form a group. The support assembly (2) comprises a first support column (21), a second support column (22), a third support column (23), and a fourth support column (24) which are threadedly mounted with the mounting holes (11) correspondingly. The guide rail assembly (4) comprises a first guide rail (41), a second guide rail (42), a third guide rail (43), and a fourth guide rail (44). The first guide rail (41) is fixed between the first support column (21) and the second support column (22), the second guide rail (42) is fixed between the third support column (23) and the fourth support column (24), the third guide rail (43) and the fourth guide rail (44) are respectively installed at two ends of the first guide rail (41) and the second guide rail (42), and the movable bolt assembly (5) is arranged at the connection between the third guide rail (43) and the fourth guide rail (44) and the first guide rail (41) and the second guide rail (42).

4. The testing device for single string and multi-string in power battery module according to claim 3, characterized in that, The first guide rail (41) is horizontally arranged between the first support column (21) and the second support column (22), and the second guide rail (42) is horizontally arranged between the third support column (23) and the fourth support column (24). The third guide rail (43) is horizontally fixed between the first guide rail (41) and the second guide rail (42), and the fourth guide rail (44) is horizontally fixed between the first guide rail (41) and the second guide rail (42).

5. The testing device for single string and multi-string in power battery module according to claim 4, characterized in that, The third guide rail (43) and the fourth guide rail (44) are provided with the probe assembly (6), wherein the first probe (61) is installed on the third guide rail (43), and the second probe (62) is installed on the fourth guide rail (44); the number of the first probe (61) and the second probe (62) is multiple, and they are respectively moved along the sliding rail direction of the third guide rail (43) and the fourth guide rail (44).

6. The testing device for single string and multi-strings in power battery module according to claim 1, characterized in that, The base plate (1) and the support assembly (2) are made of insulating material.

7. The testing device for single string and multi-strings in a power battery module according to claim 5, wherein, The outer thread of the support assembly (2) is adapted to the internal thread of the mounting hole (11).

8. The testing device for single string and multi-string in power battery module according to claim 3, characterized in that, The distance between the first support column (21) and the second support column (22) is greater than the width of the sample.

9. The testing device for single string and multi-strings in a power battery module according to claim 7, wherein, The horizontal height of the first guide rail (41) and the second guide rail (42) is consistent, and is higher than the height of the sample.

10. The testing device for single string and multi-string in power battery module according to claim 9, characterized in that, The first probe (61) and the second probe (62) are located directly above the positive and negative electrodes of the battery.

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