Lithium ion battery test box
By designing partitions to separate the accommodating cavity, slidingly connecting the outer and inner boxes, and a sealing structure, the problem of temperature fluctuations affecting test results of lithium-ion batteries in a constant temperature chamber was solved, achieving accuracy and consistency in test results, expanding the scope of application, and improving practicality and convenience.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-25
- Publication Date
- 2026-03-27
AI Technical Summary
When lithium-ion batteries are tested in parallel in a constant temperature chamber, temperature fluctuations between cells affect the accuracy and consistency of the test results, especially in a small constant temperature chamber.
Design a lithium-ion battery test chamber, which divides the chamber cavity into multiple accommodating chambers by partitions, and combines an outer chamber and an inner chamber with sliding connection to adjust the number of accommodating chambers. Use sealing strips and sealing rings to ensure the isolation of the battery cells from the constant temperature chamber environment, and use temperature sensors to control temperature consistency.
It effectively reduces temperature fluctuations between battery cells, ensures the accuracy and consistency of test results, expands the scope of application, and improves practicality and ease of use.
Smart Images
Figure CN224052252U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to battery test technical field especially relates to a kind of lithium ion battery test box. BACKGROUND
[0002] Lithium ion battery is widely used in automobile, power station, aircraft and other fields due to high safety, low cost, environmental friendliness and good cycle performance and many other points, and how to accurately evaluate the performance of lithium ion battery is particularly important. Conventional lithium ion battery needs to be tested by various electrochemical properties, including different temperature charge-discharge capacity, high-low temperature discharge, rate charge-discharge, high temperature normal temperature cycle and other tests, wherein the temperature has significant influence on the consistency of each test of battery cell.
[0003] To test the performance of lithium ion battery, generally two or more battery cells are selected for parallel test, after excluding the difference of battery cell manufacturing, the temperature in the test process has significant influence on test data, therefore the performance test of lithium ion battery is usually carried out in constant temperature room at normal temperature, low temperature and high temperature. However, even in constant temperature room, the distance of each group of battery cells from the air inlet and outlet of constant temperature room in parallel test also causes temperature fluctuation between battery cells, thereby affecting the accuracy and consistency of test results, especially in constant temperature room with small space, the influence is particularly obvious. SUMMARY
[0004] The utility model aims at the deficiency of prior art, provides a kind of lithium ion battery test box, can reduce the temperature fluctuation of each group of battery cells in constant temperature room in the performance test process of lithium ion battery, to ensure the accuracy and consistency of test results.
[0005] The utility model provides a kind of lithium ion battery test box, including the cavity in the box body, the barrier piece in the cavity, and the temperature sensor on the box body, the barrier piece separates the cavity into multiple holding cavities for holding battery cell respectively, the box body is equipped with multiple wire harness holes for respectively connecting multiple holding cavities with outside, and the wire harness hole is used for the test wire harness outside to be connected with battery cell in holding cavity after being penetrated.
[0006] Further, the box body includes an outer box and an inner box, the inner box is slidably connected with the outer box, the holding cavities include multiple first partition cavities formed in the internal space of the outer box, and multiple second partition cavities formed in the internal space of the inner box.
[0007] Further, the inner wall of the outer box is provided with a sliding groove extending in the horizontal direction, the outer wall of the inner box is provided with a sliding rail extending in the horizontal direction, and the sliding rail and the sliding groove are slidably matched.
[0008] Further, the sliding grooves are at least two respectively arranged on opposite inner walls of the outer box, and the sliding rails are at least two respectively arranged on opposite outer walls of the inner box.
[0009] Further, the outer box is provided with a plurality of first insertion holes, the inner box is provided with a plurality of second insertion holes, the partitioning member comprises a plurality of outer box partitions respectively inserted into the plurality of first insertion holes, and a plurality of inner box partitions respectively inserted into the plurality of second insertion holes, the plurality of outer box partitions divide the inner space of the outer box into a plurality of first compartments, and the plurality of inner box partitions divide the inner space of the inner box into a plurality of second compartments.
[0010] Further, the inner wall of the outer box is provided with a first insertion slot extending in the vertical direction, the top of the first insertion slot is communicated with the first insertion hole, the inner wall of the inner box is provided with a second insertion slot extending in the vertical direction, the top of the second insertion slot is communicated with the second insertion hole, the side end of the outer box partition is slidably inserted into the first insertion slot, and the side end of the inner box partition is slidably inserted into the second insertion slot.
[0011] Further, the height of the outer box partition is greater than the height of the outer box, and the height of the inner box partition is greater than the height of the inner box.
[0012] Further, the outer box is further provided with a plurality of first sealing strips, the inner box is further provided with a plurality of second sealing strips, the plurality of first sealing strips are used for respectively closing or opening the plurality of first insertion holes, and the plurality of second sealing strips are used for respectively closing or opening the plurality of second insertion holes.
[0013] Further, the first sealing strip is a flexible sealing strip movably connected to the outer box at one end, and the second sealing strip is a flexible sealing strip movably connected to the inner box at one end.
[0014] Further, the test box further comprises sealing rings respectively arranged in the plurality of wire harness holes, and the sealing rings are used for sealing the gap between the test wire harness and the wire harness hole.
[0015] The lithium ion battery test box has the following beneficial effects:
[0016] (1) The test box divides the cavity of the box body into a plurality of accommodation cavities through the partitioning member, so that the plurality of accommodation cavities accommodate a plurality of parallel test battery cells respectively, and in the test process, the box body isolates the plurality of parallel test battery cells from the internal environment of the constant temperature room, thereby preventing the temperature fluctuation between the battery cells due to the distance of the battery cells from the air inlet and outlet of the constant temperature room, reducing the temperature fluctuation of each group of battery cells in the constant temperature room, and ensuring the accuracy and consistency of the test results.
[0017] (2) The box body of the test box comprises an outer box and an inner box, the inner box is in sliding connection with the outer box, so that the inner box can be extended and retracted in the outer box, thereby adjusting the number of accommodation cavities by adjusting the cavity volume of the box body, so that the accommodation cavities of the box body can accommodate a corresponding number of battery cells, and the application range of the test box is wider and the practicability is stronger;
[0018] (3) The outer wall of the outer box is provided with a sliding groove extending in the horizontal direction, and the outer wall of the inner box is provided with a sliding rail also extending in the horizontal direction, so that the sliding rail on the outer wall of the inner box is in sliding connection with the sliding groove on the outer wall of the outer box, and the sliding connection between the inner box and the outer box is realized, and the extension and retraction of the inner box in the outer box are realized;
[0019] (4) The outer box partition plate is detachably connected with the outer box, and the volume of the first partition cavity separated in the outer box can be adjusted, and the inner box partition plate is detachably connected with the inner box, and the volume of the second partition cavity separated in the inner box can be adjusted, so that different specifications of battery cells can be accommodated in the accommodation cavities of the box body, and the application range of the test box is wider and the practicability is stronger;
[0020] (5) The outer wall of the outer box is provided with a first insertion slot extending in the vertical direction, and the inner wall of the inner box is provided with a second insertion slot extending in the vertical direction, so that the outer box partition plate is limited by the first insertion slot, and the inner box partition plate is limited by the second insertion slot, so that the insertion of the outer box partition plate in the inner space of the outer box is more stable, and the insertion of the inner box partition plate in the inner space of the inner box is more stable;
[0021] (6) The height of the outer box partition plate is greater than the height of the outer box, and the height of the inner box partition plate is greater than the height of the inner box, so that the installation and disassembly of the outer box partition plate and the inner box partition plate are more simple and convenient and easy to implement by applying force to the top of the outer box partition plate and the top of the inner box partition plate, so that the use of the test box is more convenient;
[0022] (7) The outer box of the test box is also provided with a plurality of first sealing strips, and the inner box is also provided with a plurality of sealing strips, the plurality of first sealing strips are used to respectively close or open a plurality of first insertion holes, and the plurality of second sealing strips are used to respectively close or open a plurality of second insertion holes, so as to ensure the isolation effect of the box body on the plurality of battery cells for parallel test and the internal environment of the constant temperature room, and further ensure the accuracy and consistency of the test results;
[0023] (8) The test box further comprises a plurality of sealing rings, which are respectively arranged at the inner sides of the plurality of wire harness holes, and when the external test wire harness penetrates through the wire harness hole and is connected with the battery cell in the accommodating cavity of the box body, the sealing rings seal the gap between the test wire harness and the wire harness hole, so that the sealing performance of the box body is better, the isolation effect of the box body on the plurality of battery cells for parallel test and the internal environment of the constant temperature room is ensured, and then the accuracy and consistency of the test result are ensured. BRIEF DESCRIPTION OF DRAWINGS
[0024] The accompanying drawings, which are incorporated into and form a part of the specification, illustrate embodiments of the present application and, together with the description, serve to explain the principles of the application. In these drawings, like reference numerals are used to represent similar elements.
[0025] Figure 1 It is a cross-sectional view of a lithium ion battery test box according to an embodiment of the present application;
[0026] Figure 2 It is a structural schematic view of a lithium ion battery test box according to an embodiment of the present application;
[0027] Figure 3 It is a cross-sectional view of an outer box partition plate of a lithium ion battery test box according to an embodiment of the present application, which is inserted on the outer box;
[0028] Figure 4 It is a cross-sectional view of an inner box partition plate of a lithium ion battery test box according to an embodiment of the present application, which is inserted on the inner box;
[0029] Figure 5 It is an exploded view of an outer box partition plate of a lithium ion battery test box according to an embodiment of the present application, which is inserted on the outer box;
[0030] Figure 6 It is an exploded view of an inner box partition plate of a lithium ion battery test box according to an embodiment of the present application, which is inserted on the inner box.
[0031] In the figure: 1, box body; 11, accommodating cavity; 12, wire harness hole; 13, outer box; 131, first partition cavity; 132, sliding groove; 133, first insertion hole; 134, first insertion slot; 135, first sealing strip; 14, inner box; 141, second partition cavity; 142, sliding rail; 143, second insertion hole; 144, second insertion slot; 145, second sealing strip; 2, partition stopper; 21, outer box partition plate; 22, inner box partition plate; 3, temperature sensor; 4, sealing ring. DETAILED DESCRIPTION
[0032] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme of the embodiments of the utility model will be described clearly and completely below in combination with the drawings in the embodiments of the utility model, all other embodiments obtained by the ordinary skilled in the art without creative labor based on the embodiments in the utility model belong to the scope of protection of the utility model.
[0033] Please refer to Figures 1-6 The utility model discloses a lithium ion battery test box, including the cavity of being equipped with the box 1 in, the barrier 2 of being equipped in the cavity and the temperature sensor 3 of being equipped on the box 1, the barrier 2 divides the cavity into a plurality of holding cavities 11 for holding the electric core respectively, the box 1 is equipped with a plurality of wire harness holes 12 respectively with a plurality of holding cavities 11 and the outside communication, and the wire harness hole 12 is supplied with the outside test wire harness and is connected with the electric core in the holding cavity 11 after penetrating.
[0034] Since the performance test of lithium ion battery is usually carried out in constant temperature room at normal temperature, low temperature and high temperature, the lithium ion battery test box of the application is arranged in the constant temperature room. Since the constant temperature room is usually in high and low temperature and electrified environment, it can be foreseen that the lithium ion battery test box arranged in the constant temperature room of the application can be made of material not affected by temperature and having insulation, such as high-performance resin, ceramic and the like. Specifically, the test box includes the box 1 and the barrier 2, the box 1 is provided with a cavity, and the barrier 2 is arranged in the cavity.
[0035] Since two or more electric cores are usually arranged for parallel test in the performance test of lithium ion battery, in order to prevent the mutual influence between the multiple electric cores for parallel test in the test process, the cavity of the box 1 is divided into multiple holding cavities 11 by the barrier 2, so that the multiple holding cavities 11 hold the multiple electric cores for parallel test respectively. A plurality of wire harness holes 12 are arranged on the box 1, and the multiple wire harness holes 12 respectively communicate the multiple holding cavities 11 with the outside.
[0036] When the performance test of lithium ion battery is carried out in the constant temperature room, the test wire harness is connected with the electric cores in the multiple holding cavities 11 after penetrating the corresponding wire harness hole 12. Meanwhile, the test box of the application further includes the temperature sensor 3, the temperature sensor 3 is arranged on the box 1, the temperature in the box 1 is detected by the temperature sensor 3, so as to accurately control the temperature in the box 1, so that the performance test of lithium ion battery can be carried out smoothly.
[0037] Since the box 1 isolates the multiple parallel test battery cells from the internal environment of the constant temperature room during the test, it can prevent the temperature fluctuations between the battery cells due to the distance of the battery cells from the air inlet and outlet of the constant temperature room, thereby reducing the temperature fluctuations of each group of battery cells in the constant temperature room during parallel testing, ensuring the accuracy and consistency of the test results.
[0038] In the present embodiment, the box 1 comprises an outer box 13 and an inner box 14, and the inner box 14 is slidingly connected with the outer box 13, so that the inner box 14 can be extended and retracted in the outer box 13. It is foreseeable that one end of the outer box 13 and the inner box 14 is provided with an opening. Since the accommodation cavity 11 comprises multiple first partition cavities 131 formed in the internal space of the outer box 13 and multiple second partition cavities 141 formed in the internal space of the inner box 14, the cavity volume of the box 1 can be adjusted by extending and retracting the inner box 14 in the outer box 13, so as to adjust the number of accommodation cavities 11 in the box 1.
[0039] In the previous embodiment, it is mentioned that in the performance test of lithium ion batteries, two or more battery cells are usually arranged for parallel test, i.e. three, four, five, six, … battery cells can be arranged for parallel test. Therefore, in actual use, the inner box 14 can be extended and retracted in the outer box 13 according to actual needs, so as to adjust the number of accommodation cavities 11 by adjusting the cavity volume of the box 1, so that the accommodation cavities 11 of the box 1 can accommodate the corresponding number of battery cells, thereby making the application range of the test box wider and the practicality stronger.
[0040] Specifically, in the present embodiment, the inner wall of the outer box 13 is provided with a sliding groove 132 extending in the horizontal direction. The outer wall of the inner box 14 is provided with a sliding rail 142 also extending in the horizontal direction. Therefore, the sliding connection between the inner box 14 and the outer box 13 can be achieved by the sliding cooperation between the sliding rail 142 on the outer wall of the inner box 14 and the sliding groove 132 on the inner wall of the outer box 13, and the extension and retraction of the inner box 14 in the outer box 13 can be achieved.
[0041] Since the internal space of the inner box 14 and the internal space of the outer box 13 together form the cavity of the box 1, and the accommodation cavity 11 comprises multiple first partition cavities 131 formed in the internal space of the outer box 13 and multiple second partition cavities 141 formed in the internal space of the inner box 14, when the inner box 14 is extended in the outer box 13, the cavity volume of the box 1 increases, and the number of accommodation cavities 11 increases accordingly; when the inner box 14 is retracted in the outer box 13, the cavity volume of the box 1 decreases, and the number of accommodation cavities 11 decreases accordingly, thereby making the application range of the test box wider and the practicality stronger.
[0042] Further, in the embodiment, the sliding grooves 132 are at least two respectively on the opposite inner walls of the outer box 13, and the sliding rails 142 are at least two respectively on the opposite outer walls of the inner box 14, that is, at least one sliding groove 132 is arranged on each of the opposite inner walls of the outer box 13, and at least one sliding rail 142 is arranged on each of the opposite outer walls of the inner box 14, so that the sliding rail 142 on one outer wall of the inner box 14 is in sliding fit with the sliding groove 132 on the corresponding inner wall of the outer box 13, and the sliding rail 142 on the other outer wall of the inner box 14 is in sliding fit with the sliding groove 132 on the other inner wall of the outer box 13, thereby making the sliding connection of the inner box 14 and the outer box 13 more stable, and enhancing the stability of the structure of the test box.
[0043] In the embodiment, the outer box 13 is provided with a plurality of first plug-in holes 133, and the inner box 14 is provided with a plurality of second plug-in holes 143. The partition piece 2 includes a plurality of outer box partitions 21 and a plurality of inner box partitions 22, and the plurality of outer box partitions 21 are respectively plugged into the plurality of first plug-in holes 133 on the outer box 13, so as to be plugged into the inner space of the outer box 13, thereby dividing the inner space of the outer box 13 into a plurality of first compartments 131.
[0044] The plurality of inner box partitions 22 are respectively plugged into the plurality of second plug-in holes 143 on the inner box 14, so as to be plugged into the inner space of the inner box 14, thereby dividing the inner space of the inner box 14 into a plurality of second compartments 141.
[0045] The reason why the outer box partitions 21 are plugged into the outer box 13 through the first plug-in holes 133, and the inner box partitions 22 are plugged into the inner box 14 through the second plug-in holes 143, is to make the installation of the outer box partitions 21 on the outer box 13 and the installation of the inner box partitions 22 on the inner box 14 detachable.
[0046] On the one hand, the detachable connection of the outer box partitions 21 and the outer box 13 can adjust the volume of the first compartments 131 divided in the outer box 13, and the detachable connection of the inner box partitions 22 and the inner box 14 can adjust the volume of the second compartments 141 divided in the inner box 14, so that different specifications of battery cells can be accommodated in the accommodating cavity 11 of the box body 1, thereby making the application range of the test box wider and the practicality stronger.
[0047] On the other hand, in the previous embodiment, the inner box 14 is in sliding connection with the outer box 13, so that the inner box 14 can be telescoped in the outer box 13, therefore, the outer box partitions 21 and the outer box 13 are detachably connected, and the inner box partitions 22 and the inner box 14 are detachably connected, so that by detaching the corresponding outer box partitions 21 and inner box partitions 22, the telescoping of the inner box 14 in the outer box 13 can be smoothly performed, thereby making the application range of the test box wider and the practicality stronger.
[0048] In the embodiment, the inner wall of the outer box 13 is provided with a first insertion slot 134 extending in the vertical direction. The top of the first insertion slot 134 is in communication with the first insertion hole 133, so that the outer box partition plate 21 is inserted into the first insertion slot 134 after penetrating through the first insertion hole 133, thereby limiting the outer box partition plate 21 through the first insertion slot 134, making the insertion of the outer box partition plate 21 in the inner space of the outer box 13 more stable, and further making the outer box partition plate 21 better divide the inner space of the outer box 13 into a plurality of first partition cavities 131.
[0049] The inner wall of the inner box 14 is provided with a second insertion slot 144 extending in the vertical direction. The top of the second insertion slot 144 is in communication with the second insertion hole 143, so that the inner box partition plate 22 is inserted into the second insertion slot 144 after penetrating through the second insertion hole 143, thereby limiting the inner box partition plate 22 through the second insertion slot 144, making the insertion of the inner box partition plate 22 in the inner space of the inner box 14 more stable, and further making the inner box partition plate 22 better divide the inner space of the inner box 14 into a plurality of second partition cavities 141, and further preventing mutual interference between a plurality of parallel test battery cells accommodated in the plurality of first partition cavities 131 and the plurality of second partition cavities 141 during performance testing of the lithium ion battery.
[0050] In the embodiment, the height of the outer box partition plate 21 is greater than the height of the outer box 13, so that when the outer box partition plate 21 penetrates through the first insertion hole 133 and is inserted into the bottom of the first insertion slot 134, the top of the outer box partition plate 21 extends outside the inner space of the outer box 13, and further by applying a force to the top of the outer box partition plate 21, the installation and disassembly of the outer box partition plate 21 on the outer box 13 are more simple and convenient to implement.
[0051] The height of the inner box partition plate 22 is greater than the height of the inner box 14, so that when the inner box partition plate 22 penetrates through the second insertion hole 143 and is inserted into the bottom of the second insertion slot 144, the top of the inner box partition plate 22 extends outside the inner space of the inner box 14, and further by applying a force to the top of the inner box partition plate 22, the installation and disassembly of the inner box partition plate 22 on the inner box 14 are more simple and convenient to implement, and further the use of the test box is more simple and convenient.
[0052] In the present application, the outer box partition plate 21 is installed on the outer box 13 by penetrating through the first insertion hole 133 and being inserted into the first insertion slot 134, and the outer box partition plate 21 is disassembled from the outer box 13 by sequentially extracting the outer box partition plate 21 from the first insertion slot 134 and the first insertion hole 133.
[0053] The installation of the inner tank partition plate 22 on the inner tank 14 is realized by inserting the inner tank partition plate 22 through the second plug-in hole 143 and into the second plug-in slot 144, and the dismounting of the inner tank partition plate 22 on the inner tank 14 is realized by extracting the inner tank partition plate 22 from the second plug-in slot 144 and the second plug-in hole 143 in sequence.
[0054] When the corresponding outer tank partition plate 21 on the outer tank 13 and the corresponding inner tank partition plate 22 on the inner tank 14 are dismounted, the corresponding first plug-in hole 133 on the outer tank 13 communicates the internal space of the outer tank 13 with the outside, and the corresponding second plug-in hole 143 on the inner tank 14 communicates the internal space of the inner tank 14 with the outside, which causes the sealing performance of the tank body 1 to be poor, thereby affecting the isolation of the tank body 1 to the multiple parallel test battery cells and the internal environment of the constant temperature room, and further affecting the accuracy and consistency of the test results.
[0055] Therefore, in the embodiment, a plurality of first sealing strips 135 are further arranged on the outer tank 13, and a plurality of second sealing strips 145 are further arranged on the inner tank 14, the plurality of first sealing strips 135 are used to respectively close or open the plurality of first plug-in holes 133, and the plurality of second sealing strips 145 are used to respectively close or open the plurality of second plug-in holes 143.
[0056] When the outer tank partition plate 21 needs to be installed on the outer tank 13, the corresponding first plug-in hole 133 is opened by the first sealing strip 135, so that the outer tank partition plate 21 can be inserted through the first plug-in hole 133 and into the corresponding first plug-in slot 134; when the inner tank partition plate 22 needs to be installed on the inner tank 14, the corresponding second plug-in hole 143 is opened by the second sealing strip 145, so that the inner tank partition plate 22 can be inserted through the second plug-in hole 143 and into the corresponding second plug-in slot 144.
[0057] When the outer tank partition plate 21 on the outer tank 13 is dismounted, the corresponding first plug-in hole 133 is closed by the first sealing strip 135, so as to ensure the sealing performance of the outer tank 13; when the inner tank partition plate 22 on the inner tank 14 is dismounted, the corresponding second plug-in hole 143 is closed by the second sealing strip 145, so as to ensure the sealing performance of the inner tank 14, thereby ensuring the isolation of the tank body 1 to the multiple parallel test battery cells and the internal environment of the constant temperature room, and further ensuring the accuracy and consistency of the test results.
[0058] In the embodiment, the first sealing strip 135 is a flexible sealing strip with one end movably connected with the outer box 13, and the second sealing strip 145 is a flexible sealing strip with one end movably connected with the inner box 14, so that the first sealing strip 135 is more easily opened or closed with the first plug-in hole 133, and the second sealing strip 145 is more easily opened or closed with the second plug-in hole 143, thereby making the test box more simple and convenient to use.
[0059] In the embodiment, the test box further comprises a plurality of sealing rings 4, which are respectively arranged in the plurality of wire harness holes 12. When the external test wire harness penetrates the wire harness hole 12 and is connected with the battery cell in the accommodation cavity 11 of the box body 1, the sealing ring 4 seals the gap between the test wire harness and the wire harness hole 12, so that the sealing performance of the box body 1 is better, the isolation effect of the box body 1 on the plurality of battery cells for parallel test and the internal environment of the constant temperature room is ensured, and the accuracy and consistency of the test result are ensured.
[0060] In actual implementation, when the performance of the lithium ion battery is tested, the thickness of the test wire harness may be different, so different inner diameters of the sealing ring 4 can be replaced according to the thickness of the test wire harness, so that the sealing performance of the box body 1 is ensured, the application range of the test box is wider, and the practicality is stronger.
[0061] The above description can be implemented alone or in various combinations, and these variants are within the protection scope of the utility model.
[0062] It should be noted that in this paper, relationship terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between the entities or operations. Moreover, the term "include", "contain" or any other variant thereof is intended to cover non-exclusive inclusion, so that the process, method, article or equipment containing a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or equipment. Without more limitations, the element defined by the statement "including one" does not exclude the presence of another identical element in the process, method, article or equipment including the element.
[0063] It should be finally pointed out that: the above examples are only used to illustrate the technical solutions of the utility model, and not limit it. Although the utility model has been explained in detail with reference to the foregoing examples, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing examples, or make equivalent replacement to part of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the utility model.
Claims
1. A lithium-ion battery test box, characterized by: The utility model relates to a battery pack, including the box (1) that is equipped with cavity, the barrier (2) of being equipped with in the cavity and the temperature sensor (3) of being equipped on the box (1), the barrier (2) will the cavity is divided into multiple for respectively holding the accommodating cavity (11) of electric core, the box (1) is equipped with multiple wire harness hole (12) respectively with multiple the accommodating cavity (11) with outside communication, and the wire harness hole (12) is supplied after the external test wire harness is penetrated and is connected with the electric core in the accommodating cavity (11).
2. A lithium-ion battery test box as claimed in claim 1, characterized in that: The box (1) includes an outer box (13) and an inner box (14), the inner box (14) is slidably connected with the outer box (13), the accommodating cavity (11) includes a plurality of first compartments (131) formed in the internal space of the outer box (13), and a plurality of second compartments (141) formed in the internal space of the inner box (14).
3. A lithium-ion battery test box as claimed in claim 2, characterized in that: The inner wall of the outer box (13) is provided with a sliding groove (132) extending in the horizontal direction, and the outer wall of the inner box (14) is provided with a sliding rail (142) extending in the horizontal direction, the sliding rail (142) is in sliding fit with the sliding groove (132).
4. A lithium-ion battery test box as claimed in claim 3, characterized in that: The sliding groove (132) is at least two respectively provided on the opposite two inner walls of the outer box (13), and the sliding rail (142) is at least two respectively provided on the opposite two outer walls of the inner box (14).
5. A lithium-ion battery test box as defined in claim 2, characterized in that: The outer box (13) is provided with a plurality of first plug-in holes (133), and the inner box (14) is provided with a plurality of second plug-in holes (143). The barrier (2) includes a plurality of outer box partitions (21) respectively plugged into the plurality of first plug-in holes (133), and a plurality of inner box partitions (22) respectively plugged into the plurality of second plug-in holes (143). The plurality of outer box partitions (21) divide the internal space of the outer box (13) into a plurality of first compartments (131), and the plurality of inner box partitions (22) divide the internal space of the inner box (14) into a plurality of second compartments (141).
6. A lithium-ion battery test box as claimed in claim 5, characterized in that: The inner wall of the outer box (13) is provided with a first plug-in groove (134) extending in the vertical direction, the top of the first plug-in groove (134) is in communication with the first plug-in hole (133), the inner wall of the inner box (14) is provided with a second plug-in groove (144) extending in the vertical direction, the top of the second plug-in groove (144) is in communication with the second plug-in hole (143), the side end of the outer box partition (21) is in sliding plug-in with the first plug-in groove (134), and the side end of the inner box partition (22) is in sliding plug-in with the second plug-in groove (144).
7. A lithium-ion battery test box as claimed in claim 6, characterized in that: The height of the outer box partition (21) is greater than the height of the outer box (13), and the height of the inner box partition (22) is greater than the height of the inner box (14).
8. A lithium-ion battery test box as defined in claim 5, characterized in that: A plurality of first sealing strips (135) are arranged on the outer box (13), and a plurality of second sealing strips (145) are arranged on the inner box (14). The first sealing strips (135) are used to respectively seal or open the first plug-in holes (133), and the second sealing strips (145) are used to respectively seal or open the second plug-in holes (143).
9. A lithium-ion battery test box as claimed in claim 8, characterized in that: The first sealing strips (135) are flexible sealing strips movably connected to the outer box (13) at one end, and the second sealing strips (145) are flexible sealing strips movably connected to the inner box (14) at one end.
10. A lithium-ion battery test box as defined in claim 1, characterized in that: The test box further comprises sealing rings (4) respectively arranged in the wire harness holes (12). The sealing rings (4) are used to seal the gap between the test wire harness and the wire harness holes (12).