CN220933049U - Battery cell test fixture and test system - Google Patents

Abstract

The utility model discloses a battery cell test fixture and a test system. The support carrier is used for being connected to test equipment; the fixed module is arranged on the support carrier, the fixed module comprises at least two fixed carriers, at least two fixed carriers are enclosed to form a closed mounting cavity, and the mounting cavity is used for mounting the accommodating battery cell. The technical scheme of the utility model can improve the use convenience of the battery cell test fixture.

Description

Battery cell test fixture and test system

Technical Field

The utility model relates to the technical field of battery testing, in particular to a battery core testing fixture and a testing system.

Background technique

At present, before the battery leaves the factory, it is usually subjected to corresponding vibration and/or impact test experiments to determine the reliability of the battery. However, in the current battery testing process, the installation of the battery cell on the battery cell test fixture is relatively cumbersome, resulting in the inconvenience of using the battery cell test fixture.

Utility Model Content

The main purpose of the utility model is to provide a battery cell testing fixture, aiming to improve the convenience of using the battery cell testing fixture.

To achieve the above purpose, the battery cell testing fixture proposed by the utility model includes:

A support carrier, the support carrier is used to connect to the test equipment; and

The fixed module is arranged on the supporting carrier, and the fixed module comprises at least two fixed carriers, and the at least two fixed carriers enclose to form a closed installation cavity, and the installation cavity is used to install and accommodate the battery cell.

When in use, the battery cell test fixture of the technical solution of the utility model can be connected to the test equipment through the support carrier of the battery cell test fixture, and after the battery cell to be tested is opened with at least two fixed carriers, it can be installed and accommodated in the closed installation cavity formed by the at least two fixed carriers, thereby realizing the indirect installation of the battery cell on the test equipment. Moreover, since the fixed module in this solution can better position and limit the battery cell through the closed installation cavity formed by the at least two fixed carriers, the battery cell is not easy to shift during the installation process, and the battery cell can be quickly installed on the battery cell test fixture. In this way, the installation process of the battery cell can be simplified, which is conducive to improving the convenience of using the battery cell test fixture.

Optionally, the fixed carrier is provided with a mounting groove, and the mounting grooves of at least two fixed carriers are enclosed to form a mounting cavity.

Thus, the installation slots on any fixed carrier can play a good role in positioning and limiting the battery cell, thereby facilitating the use of the battery cell test fixture. At the same time, the structure of each installation slot can be relatively simple, thereby facilitating the manufacture of the fixed module.

Optionally, the mounting groove has two opposite ends, and the fixing module further includes two insulating members, which are respectively arranged at the opposite ends of the mounting groove to respectively abut against the opposite ends of the battery cell.

In this way, the battery cell can be isolated and insulated, which is beneficial to improving the stability of the battery cell during the test process.

Optionally, positioning grooves are provided on the opposite sides of the two insulating members, and the two positioning grooves in the two insulating members are used to be sleeved on the opposite ends of the battery core;

And/or, the insulating member is movably disposed in the mounting groove;

And/or, the insulating member is made of elastic material.

Therefore, the positioning groove can play a positioning and limiting role, which is beneficial to improving the accuracy and stability of the installation of the two; the movable setting can simplify the structure of the battery cell test fixture, and at the same time facilitate the replacement of the insulating parts and the assembly of the battery cells and the insulating parts; when the material of the insulating parts is elastic material, it can also play a buffering role for the battery cells.

Optionally, the mounting slot includes a middle slot section and two end slot sections, and the two end slot sections are respectively connected to opposite ends of the middle slot section;

The cross-sectional areas of the two end slot sections are smaller than the cross-sectional area of the middle slot section, and the two insulating members are respectively arranged in the two end slot sections.

In this way, the battery cells can be better avoided, and a structural basis is also provided to facilitate filling of fillers between the middle slot section and the battery cells to simulate the actual installation scenario of the battery cells.

Optionally, the fixing module further includes a filler, and the filler is used to fill between the slot wall of the middle slot section and the battery core.

In this way, the test can be carried out in the actual installation scenario of the model battery cell, which is beneficial to improve the accuracy of the test results.

Optionally, the fixing module is detachably mounted on the supporting carrier.

Thereby, the convenience of installing the battery cell can be improved, and at the same time the battery cell and the fixing module can be formed into a replaceable "test component".

Optionally, the support carrier is formed with a first mounting surface and a second mounting surface, the first mounting surface and the second mounting surface are arranged to intersect, and the fixed module is installed on the first mounting surface or the second mounting surface.

Therefore, the battery cell test fixture can simultaneously meet the axial and radial vibration or impact tests of the battery cell, further improving the convenience of using the battery cell test fixture.

Optionally, the support carrier comprises:

Support base plate;

A first mounting plate, the first mounting plate is disposed on the supporting bottom plate and is disposed at an angle to the supporting bottom plate, the first mounting plate is formed with a first mounting surface, and the first mounting surface is disposed at an angle to the supporting bottom plate; and

The second mounting plate is arranged on the supporting bottom plate and is located on a side of the first mounting plate away from the first mounting surface. A second mounting surface is formed on a side of the second mounting plate away from the supporting bottom plate.

Thus, it is convenient to simultaneously realize the connection with the test equipment and the installation of the vertically arranged fixed modules and the horizontally arranged fixed modules. At the same time, the structure of the support carrier is relatively simple, which is conducive to improving the convenience of its manufacture and reducing the manufacturing cost.

Optionally, the second mounting plate includes a first plate body and a second plate body which are arranged at an angle, the first plate body is connected to the supporting base plate, the second plate body is connected to the first mounting plate, and the first plate body forms a second mounting surface.

This helps to improve the overall stiffness of the support carrier to meet the needs of vibration testing and impact testing at a relatively large scale.

Optionally, at least two fixed carriers are detachably connected in sequence;

And/or, at least one of the fixing carriers is provided with a pass hole, and the pass hole is connected to the installation cavity;

And/or, the number of fixed modules is at least two;

And/or, the support carrier is provided with a plurality of mounting holes, and the plurality of mounting holes are sequentially arranged along the circumference of the support carrier; the mounting holes are used to penetrate fasteners to detachably connect the support carrier to the test equipment;

And/or, the material of the support carrier is a metal material;

And/or, the installation cavity is a circular cavity.

As a result, the fixed carrier can be detachably connected in sequence, which makes it more convenient to place the battery cells and reduces the replacement cost; the setting of the pass hole allows the battery cells accommodated in the installation cavity to be electrically connected to the charge and discharge tester, and then during the vibration or impact test of the battery cells, the charge and discharge test of the battery cells can be realized at the same time; the setting of at least two fixed modules allows at least two battery cells to be tested at the same time, which is beneficial to improving the test efficiency; the setting of multiple mounting holes can improve the stability of the support carrier when installed on the test equipment, and the versatility of installation on different test equipment; the material of the support carrier is set to metal, which can improve the overall stiffness of the support carrier, so as to adapt to the use of test equipment of different magnitudes, and further improve the versatility of the battery cell test fixture on different test equipment; the installation cavity is set to a circular cavity, which can make it better adapt to the use of cylindrical battery cells, improve the limiting effect of the battery cells and the compactness of the installation.

The utility model also provides a testing system, comprising:

Test equipment, which is a vibration test bench or a shock test bench; and

A battery cell test fixture, the battery cell test fixture is the battery cell test fixture mentioned above, and a supporting carrier of the battery cell test fixture is connected to the testing equipment.

BRIEF DESCRIPTION OF THE DRAWINGS

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

FIG1 is a schematic structural diagram of an embodiment of a battery cell testing fixture of the utility model;

FIG2 is a schematic diagram of a partial structure of the battery cell testing fixture in FIG1 ;

FIG. 3 is a schematic diagram showing a second mounting plate of the battery cell testing fixture in FIG. 1 from one perspective.

Description of Figure Numbers:

The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings.

Detailed ways

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

It should be noted that all directional indications in the embodiments of the present application (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

In this application, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

In addition, the descriptions of "first", "second", etc. in this application are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the meaning of "and/or" appearing in the full text is to include three parallel solutions. Taking "A and/or B as an example", it includes solution A, or solution B, or a solution that satisfies both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this application.

As the power source of new energy vehicles, the stability of the mechanical structure of the battery directly affects the driving performance of new energy vehicles. During the actual driving of the vehicle, road bumps and some accidents will cause the vehicle to vibrate and impact, and then the battery located in the vehicle will be vibrated and impacted. Therefore, before the battery leaves the factory, the battery is usually subjected to corresponding vibration and/or impact test experiments to determine the reliability of the battery. However, in the current process of testing the battery cells, the battery cells lack sufficient positioning and limiting on the battery cell fixture, which makes the battery cells easily offset during the installation process and cannot be quickly installed on the battery cell test fixture. At this time, the installation of the battery cell on the battery cell test fixture requires correction and adjustment back and forth, which makes it more cumbersome, resulting in the inconvenience of using the battery cell test fixture.

Therefore, based on the above considerations, in order to solve the problem that the current battery cell is inconvenient to install on the battery cell test fixture, which leads to the inconvenience of using the battery cell test fixture, the present application proposes a new type of battery cell test fixture. The new type of battery cell test fixture innovatively sets the fixed module to include at least two fixed carriers, and the at least two fixed carriers can be enclosed to form an installation cavity, so as to accommodate the battery cell through the installation cavity to realize the rapid positioning and limiting of the battery cell, thereby realizing the rapid installation of the battery cell on the battery cell test fixture and improving the convenience of using the battery cell test fixture.

In addition, it should be noted that the battery cell test fixture proposed in this application can be used to install and fix cylindrical battery cells, and of course it can also be used to install and fix square shell battery cells. The battery cell test fixture can be applied to a test device, and the test device can be a vibration test bench to perform corresponding vibration tests on the battery cells. Of course, the test device can also be an impact test bench to perform corresponding impact tests on the battery cells.

Next, the structure of the battery cell test fixture proposed in the present application is explained and illustrated by an embodiment. In one embodiment of the present application, please refer to Figure 1. The battery cell test fixture 100 proposed in the present application includes a supporting carrier 10 and a fixed module 30. The supporting carrier 10 is used to be connected to the test equipment; the fixed module 30 is arranged on the supporting carrier 10, and the fixed module 30 includes at least two fixed carriers 31. The at least two fixed carriers 31 enclose a closed installation cavity 311, and the installation cavity 311 is used to install and accommodate battery cells.

The support carrier 10 can be used to carry the fixed module 30 so that the various components in the battery test fixture 100 can be assembled into a whole. At the same time, the support carrier 10 can also be used to connect to the test equipment as described above, thereby realizing the installation and fixation of the battery test fixture 100 on the test equipment. Among them, the support carrier 10 can include a support base plate 11, a first mounting plate 13 and a second mounting plate 15 as described below. Of course, the support carrier 10 can also include only the support base plate 11, or only the first mounting plate 13, or only the support base plate 11 and the first mounting plate 13, or directly a seat structure. Therefore, the present application does not limit the structural type and shape of the support carrier 10. In addition, the material of the support carrier 10 can be a metal material as described below, of course, it can also be plastic, and the present application does not limit the material of the support carrier 10. In addition, the support carrier 10 can be connected to the test equipment by fasteners through the mounting holes 111 thereon as described below. Of course, the support carrier 10 and the test device may also be connected by a snap connection or a magnetic connection, and the present application does not limit the connection method between the support carrier 10 and the test device.

The fixed module 30 is a module that can be used to fix the battery cell. Specifically, at least two fixed carriers 31 of the fixed module 30 can be opened and closed. When opened, the battery cell to be tested can be placed in the installation cavity 311, and then the installation and positioning of the battery cell can be completed after the cover is closed. Among them, since the installation cavity 311 is closed, it can play a positioning and limiting role around the battery cell, which is beneficial to the convenience of installing the battery cell. In addition, the number of fixed carriers 31 can be two, of course, it can also be three or more, and the present application does not limit the number of fixed carriers 31. The shape of the installation cavity 311 can be adaptively set according to the shape of the battery cell to be tested. For example: when the battery cell is a cylindrical battery cell, the shape of the installation cavity 311 can be set to a cylindrical cavity accordingly. Moreover, the fixed carriers 31 in the fixed module 30 may be provided with mounting grooves 312 as described below, so as to enclose the mounting cavity 311 through the mounting grooves 312, and of course, only one of the fixed carriers 31 may be provided with the mounting grooves 312. In addition, at least two fixed carriers 31 in the fixed module 30 may be detachably connected in sequence as described below. Of course, one side may be rotatably connected and the other side may be detachably connected. The present application does not limit the connection method between the at least two fixed carriers 31, and it is sufficient to ensure that they can be opened and covered. The connection method of the fixed module 30 on the supporting carrier 10 may be detachable as described below, and of course, it may be fixedly connected. The present application does not limit the installation method of the fixed module 30 on the supporting carrier 10. In addition, the number of fixed modules 30 may be one, and of course, it may be at least two as described below, and the present application does not limit the number of fixed modules 30.

When the battery cell test fixture 100 of the technical solution of the present application is in use, it can be connected to the test equipment through the support carrier 10 of the battery cell test fixture 100, and after the battery cell to be tested has at least two fixed carriers 31 opened, it can be installed and accommodated in the closed installation cavity 311 enclosed by the at least two fixed carriers 31, thereby realizing the indirect installation of the battery cell on the test equipment. Moreover, since the fixed module 30 in this solution can better position and limit the battery cell through the closed installation cavity 311 enclosed by at least two fixed carriers 31, the battery cell is not easily offset during the installation process, and the battery cell can be quickly installed on the battery cell test fixture 100. In this way, the installation process of the battery cell can be simplified, which is conducive to improving the convenience of using the battery cell test fixture 100.

Please refer to FIG. 1 . In one embodiment of the present application, a fixing carrier 31 is provided with a mounting groove 312 . The mounting grooves 312 of at least two fixing carriers 31 are enclosed to form a mounting cavity 311 .

In this embodiment, a mounting groove 312 is provided on each fixed carrier 31, so that after opening the fixed module 30, the battery cell can be mounted on any fixed carrier 31, and the mounting groove 312 on the fixed carrier 31 can play a good positioning and limiting role on the battery cell, thereby facilitating the use of the battery cell test fixture 100. On the other hand, the mounting cavity 311 can be split into a plurality of mounting grooves 312, and the structure of each mounting groove 312 can be relatively simple, thereby facilitating the manufacturing convenience of the fixed module 30.

Please refer to FIG. 1 . In one embodiment of the present application, the mounting slot 312 has two opposite ends. The fixing module 30 further includes two insulating members 33 . The two insulating members 33 are respectively disposed at the opposite ends of the mounting slot 312 to respectively abut against the opposite ends of the battery cell.

The mounting groove 312 has two opposite ends, wherein, when the fixed module 30 is installed vertically so that the battery cell is arranged vertically (for example, when the battery cell is a cylindrical battery cell, the battery cell is arranged vertically so that it can be subjected to axial mechanical vibration or impact test), the mounting groove 312 can have two opposite ends in the up and down direction. When the fixed module 30 is installed horizontally so that the battery cell is arranged horizontally (at this time, the battery cell can be subjected to radial mechanical vibration or impact test), the mounting groove 312 can have two opposite ends in the horizontal direction. The insulating member 33 is an object that does not have the ability to conduct electricity, such as plastic. In addition, the insulating member 33 can be arranged movably in the mounting groove 312 as described below, or it can be detachably connected to or fixedly connected to the fixed carrier 31. The present application does not limit the arrangement of the insulating member 33 in the mounting groove 312.

In this embodiment, the insulating member 33 can be provided to isolate and insulate the battery cell, thereby improving the reliability of the battery cell during the test process. In particular, when the fixing module 30 is made of a metal material with high rigidity, the insulation protection of the battery cell can be further improved.

Please refer to FIG. 1 . In one embodiment of the present application, two insulating members 33 have positioning grooves 331 on their opposite sides. The two positioning grooves 331 in the two insulating members 33 are used to be sleeved on opposite ends of the battery cell.

The insulating member 33 is provided with a positioning groove 331 , so that the insulating member 33 can be a cylindrical structure with an end groove opening, and the end of the battery cell can be inserted into the insulating member 33 .

In this embodiment, a positioning groove 331 is provided on the insulating member 33 so that when installing between the battery cell and the insulating member 33 , the positioning groove 331 can play a role of positioning and limiting, thereby facilitating improving the accuracy and stability of the installation of the two.

In one embodiment of the present application, the insulating member 33 is movably disposed in the mounting groove 312 .

The insulating member 33 is movably arranged, that is, there is no connection relationship between the insulating member 33 and the fixed carrier 31 , and the insulating member 33 can be directly removed from the mounting groove 312 .

In this embodiment, the insulating member 33 is movably arranged in the installation groove 312. On the one hand, it is unnecessary to set a connection structure, which is conducive to simplifying the structure and improving the convenience of manufacturing the battery cell test fixture 100. On the other hand, when the insulating member 33 is damaged, or when it is necessary to change the type to install batteries of different diameters, the insulating member 33 can be directly removed to improve the convenience of its replacement. Moreover, when installing the battery cell, the two insulating members 33 can also be taken out, so that when the battery cell is installed, it will not be affected by the fixed carrier 31, and the insulating member 33 and the battery cell can be assembled more conveniently, and then the assembled whole can be installed in the installation groove 312 at one time, which is conducive to further improving the convenience of battery cell installation.

In one embodiment of the present application, the insulating member 33 is made of elastic material.

In this embodiment, the material of the insulating member 33 is further set to an elastic material, such as rubber or silicone, so that the insulating member 33 can be further elastic and can play a buffering role in the installation of the battery cell, avoiding excessive pressure damage to the battery cell, thereby helping to further improve the reliability of the battery cell during the test process.

Please refer to Figures 1 and 2. In one embodiment of the present application, the mounting groove 312 includes a middle groove section 313 and two end groove sections 314. The two end groove sections 314 are respectively connected to the opposite ends of the middle groove section 313; the cross-sectional area of the two end groove sections 314 is smaller than the cross-sectional area of the middle groove section 313, and the two insulating members 33 are respectively arranged in the two end groove sections 314.

In this embodiment, the mounting groove 312 is set to a middle groove section 313 with a larger middle part and end groove sections 314 with smaller ends, so that the fixed carrier 31 can avoid the battery cell better. In particular, when the fixed carrier 31 is made of a metal material with strong rigidity, the reliability during the test can be improved. At the same time, such a setting can also provide a structural basis to facilitate filling fillers between the middle groove section 313 and the battery cell as described below, so as to better simulate the actual installation scene of the battery cell, and then the corresponding test of the battery cell in the simulated scene can improve the accuracy of the test results. Therefore, in one embodiment of the present application, the fixed module 30 may also include a filler, which is used to fill between the groove wall of the middle groove section 313 and the battery cell. Among them, the filler can be a foaming material, an insulating glue, or a cooling pipe, etc. Specifically, according to the installation scene of the battery cell in the battery module, or the installation scene in the battery pack, or the installation scene on the electrical device, according to the objects contacted around the battery cell, fill the filler with the same material as the object contacted.

In one embodiment of the present application, the fixing module 30 is detachably disposed on the supporting carrier 10 .

Removable connection, that is, after the fixed module 30 is installed on the support carrier 10, it can be removed from the support carrier 10 without damaging the connection structure. Among them, the fixed module 30 can be detachably connected to the support carrier 10 through a fixed carrier 31, and other fixed carriers 31 can be connected to the fixed carrier 31. In addition, the detachable connection method of the fixed module 30 on the support carrier 10 can be connected by fasteners such as screws or bolts, of course, it can also be connected by snap-on connection or magnetic connection, etc. This application does not limit the detachable connection method between the fixed module 30 and the support carrier 10.

In this embodiment, the fixed module 30 is set on the support carrier 10 as a detachable connection, so that on the one hand, the fixed module 30 can be removed from the support carrier 10 when installing the battery cell. At this time, the volume of the fixed module 30 is relatively small, which can facilitate the user to put a smaller battery cell on the fixed module 30, and then install the assembled whole on the support carrier 10 at one time. On the other hand, such a setting also allows the fixed module 30 and the battery cell installed in the fixed module 30 to form a replaceable "test component". When the test direction of the pair of battery cells needs to be adjusted, there is no need to take out the battery cell, and the installation direction of the "test component" can be directly adjusted, which is conducive to further improving the convenience of using the battery cell test fixture 100.

Please refer to Figures 1 and 3. In one embodiment of the present application, the support carrier 10 is formed with a first mounting surface 131 and a second mounting surface 155. The first mounting surface 131 and the second mounting surface 155 are arranged to intersect each other, and the fixed module 30 is installed on the first mounting surface 131 or the second mounting surface 155.

The fixed module 30 is installed on the first mounting surface 131 or the second mounting surface 155, that is, the fixed module 30 can be selectively installed on the first mounting surface 131 or the second mounting surface 155 according to the test requirements. The first mounting surface 131 can be set vertically, and the second mounting surface 155 can be set horizontally. At this time, when the fixed module 30 is installed on the first mounting surface 131, when the battery cell is a cylindrical battery cell, the axis of the battery cell is set vertically. When the fixed module 30 is installed on the second mounting surface 155, when the battery cell is a cylindrical battery cell, the axis of the battery cell is set horizontally. Among them, the number of the first mounting surface 131 can be one, for installing one or at least two fixed modules 30. Of course, the number of the first mounting surface 131 can also be at least two, for installing at least two fixed modules 30 respectively. Similarly, the number of the second mounting surface 155 can also be one or at least two. In addition, the connection structures of the fixed module 30 on the first mounting surface 131 and the second mounting surface 155 can be set to be the same, for example, connection holes can be set on the first mounting surface 131 and the second mounting surface 155, so that the fixed module 30 can be detachably connected by fasteners such as screws or bolts when installed on the first mounting surface 131 and the second mounting surface 155. Of course, the fixed module 30 can also be installed on the first mounting surface 131 and the second mounting surface 155 by snap connection or magnetic fixation.

In this embodiment, the fixed module 30 is set to be selectively mounted on the first mounting surface 131 or the second mounting surface 155, and the first mounting surface 131 and the second mounting surface 155 are set at an angle, so that the battery cell test fixture 100 can simultaneously meet the axial and radial vibration or impact test of the battery cell. That is, the applicable types of battery cell tests of the battery cell test fixture 100 can be improved, and when the axial and radial vibration or impact test of the battery cell is performed, there is no need to perform a more battery cell test fixture 100, which is conducive to further improving the convenience of using the battery cell test fixture 100.

Please refer to Figures 1 and 3. In one embodiment of the present application, the supporting carrier 10 includes a supporting base plate 11, a first mounting plate 13 and a second mounting plate 15. The first mounting plate 13 is arranged on the supporting base plate 11 and is arranged at an angle to the supporting base plate 11. The first mounting plate 13 forms a first mounting surface 131, and the first mounting surface 131 and the supporting base plate 11 are arranged at an angle; the second mounting plate 15 is arranged on the supporting base plate 11 and is located on the side of the first mounting plate 13 away from the first mounting surface 131. The second mounting plate 15 is formed with a second mounting surface 155 on the side of the second mounting plate 15 away from the supporting base plate 11.

The support base plate 11 can be arranged horizontally for connection with the test equipment. The first mounting plate 13 can be arranged vertically on the upper surface of the support base plate 11, so that the support base plate 11 and the first mounting plate 13 form an L-shaped structure. The first mounting surface 131 can be arranged on one side of the first mounting plate 13, the second mounting plate 15 can be arranged on the other side of the first mounting plate 13, and the second mounting surface 155 can be arranged on the upper surface of the second mounting plate 15. Among them, the first mounting plate 13 and the support base plate 11 can be detachably connected by fasteners such as screws or bolts, and of course they can also be welded. The second mounting plate 15 can be connected to the support base plate 11, of course it can also be connected to the first mounting plate 13, or it can be connected to the support base plate 11 and the first mounting plate 13 at the same time. Further, the connection method of the second mounting plate 15 can be detachably connected by fasteners such as screws or bolts, and of course it can also be welded. Therefore, the present application does not limit the connection relationship and connection method of the support base plate 11, the first mounting plate 13 and the second mounting plate 15.

In this embodiment, the support carrier 10 is configured to include a support base plate 11, a first mounting plate and a second mounting plate 15, so that the support base plate 11 can provide a better connection position to connect with the test equipment. At the same time, a better installation position can be provided so as to set the first mounting plate 13 and the second mounting plate 15, and the first mounting surface 131 and the second mounting surface 155 can be better formed by the first mounting plate 13 and the second mounting plate 15. That is, the structure of the support carrier 10 is configured in this way, which can more conveniently realize the connection with the test equipment and the installation of the vertically arranged fixed module 30 and the horizontally arranged fixed module 30. Moreover, the structure of the support carrier 10 at this time is also relatively simple, which is conducive to improving the convenience of its manufacture and reducing the manufacturing cost.

Please refer to Figures 1 and 3. In one embodiment of the present application, the second mounting plate 15 includes a first plate body 151 and a second plate body 153 arranged at an angle. The first plate body 151 is connected to the supporting base plate 11, the second plate body 153 is connected to the first mounting plate 13, and the first plate body 151 is formed with a second mounting surface 155.

In this embodiment, the second mounting plate 15 is configured to be a combination of an L-shaped first plate body 151 and a second plate body 153, so that the second mounting plate 15 can be connected to the supporting base plate 11 and the first mounting plate 13 at the same time, which is beneficial to improve the overall stiffness of the supporting carrier 10 to meet the needs of vibration testing and impact testing at relatively large scales.

In an embodiment of the present application, at least two fixing carriers 31 are detachably connected in sequence.

In this embodiment, the fixed carrier 31 is set to be detachably connected, so that when installing the battery cell, at least two fixed carriers 31 can be separated, so that the battery cell can be placed more conveniently. At the same time, when the fixed carrier 31 is damaged, only the damaged fixed carrier 31 can be replaced, avoiding the need to replace the entire body due to local damage, which is conducive to reducing the replacement cost. Among them, at least two fixed carriers 31 can be connected by fasteners such as screws or bolts, so as to simplify the connection structure while ensuring the stability of the connection and further improve the convenience of installing the battery cell. Of course, at least two fixed carriers 31 can also be connected by snap-on connection or magnetic fixation.

Please refer to FIG. 1 . In one embodiment of the present application, the number of the fixing carriers 31 is two.

In this embodiment, the number of the fixed carriers 31 is set to two, so that the number of the fixed carriers 31 is very small, which can be disassembled and more portable when used. On the other hand, it also makes the structure simpler, which is conducive to improving the convenience of manufacturing the fixed module 30.

Please refer to FIG. 1 . In one embodiment of the present application, at least one fixing carrier 31 is provided with a clearance hole 315 . The clearance hole 315 is connected to the installation cavity 311 .

In this embodiment, a clearance hole 315 is provided on the fixed carrier 31, so that the battery cell accommodated in the installation cavity 311 can expose the tab through the clearance hole 315 to be electrically connected to the charge and discharge tester, and then during the process of performing vibration or impact test on the battery cell, the charge and discharge test of the battery cell can be realized at the same time, thereby further improving the use function of the battery cell test fixture 100.

Please refer to FIG. 1 . In one embodiment of the present application, the number of the fixing modules 30 is at least two.

In this embodiment, at least two fixing modules 30 are provided, so that at least two battery cells can be tested simultaneously through at least two fixing modules 30, thereby facilitating improving the test efficiency. In particular, when the support carrier 10 includes the first mounting surface 131 and the second mounting surface 155 as described above, the battery cells can be freely combined with the axial test and the radial test, further improving the convenience of the battery cell test.

Please refer to Figure 1. In one embodiment of the present application, the support carrier 10 is provided with a plurality of mounting holes 111, and the plurality of mounting holes 111 are sequentially arranged along the circumference of the support carrier 10; the mounting holes 111 are used to penetrate fasteners to detachably connect the support carrier 10 to the test equipment.

The fastener may be a screw or a bolt. When the support carrier 10 includes the support base plate 11 , the first mounting plate 13 and the second mounting plate 15 as described above, the mounting hole 111 may be provided on the support base plate 11 .

In this embodiment, a mounting hole 111 is provided on the support carrier 10 so that it can be installed on the test equipment by inserting fasteners. This can simplify the installation process of the battery cell test fixture 100 on the test equipment while ensuring the stability of the connection, thereby facilitating further improving the convenience of its use. Moreover, the number of mounting holes 111 is still multiple, and they are arranged in sequence along the circumference, so that the support carrier 10 can have a connection relationship at multiple positions in the circumference, which is conducive to further improving the stability of the fixation of the support carrier 10, so as to ensure the subsequent normal and stable testing of the battery cell. At the same time, such a setting also allows the battery cell test fixture 100 to be installed on the vibration test bench or the impact test bench through different mounting holes 111 for adaptation and installation with the vibration test bench and the impact test bench, that is, the versatility of the installation of the battery cell test fixture 100 on different test benches is improved.

In one embodiment of the present application, the support carrier 10 is made of metal material.

In this embodiment, the material of the support carrier 10 is set to metal, which can further improve the overall stiffness of the support carrier 10 so as to adapt to the use of test equipment of different magnitudes (i.e., different sizes of vibration force or impact force), and further improve the versatility of the battery cell test fixture 100 for use on different test equipment.

Please refer to FIG. 1 . In one embodiment of the present application, the installation cavity 311 is a circular cavity.

In this embodiment, the installation cavity 311 is set as a circular cavity, which can make it better adapted to the cylindrical battery cell, improve the limiting effect of the battery cell and the compactness of the installation. At the same time, such a setting can also make the structure of the installation cavity 311 simpler, which is conducive to improving the convenience of its processing and forming. Among them, when the installation cavity 311 is formed by the installation grooves 312 of each fixed carrier 31, the cross-sections of the middle groove section 313 and the end groove section 314 in the installation groove 312 can both be arc-shaped.

Please refer to Figures 1 to 3. In one embodiment of the present application, the battery cell test fixture 100 includes a support carrier 10 and a fixed module 30. The support carrier 10 is used to connect to the test equipment; the fixed module 30 is arranged on the support carrier 10, and the fixed module 30 includes at least two fixed carriers 31. The at least two fixed carriers 31 enclose a closed installation cavity 311, and the installation cavity 311 is used to install and accommodate the battery cell. The fixed carrier 31 is provided with an installation groove 312, and the installation grooves 312 of at least two fixed carriers 31 enclose the installation cavity 311. The installation groove 312 has two opposite ends, and the fixed module 30 also includes two insulating members 33. The two insulating members 33 are respectively arranged at the opposite ends of the installation groove 312 to respectively abut against the opposite ends of the battery cell. The two insulating members 33 are provided with positioning grooves 331 on the opposite sides, and the two positioning grooves 331 of the two insulating members 33 are used to be sleeved on the opposite ends of the battery cell; the insulating member 33 is movably arranged in the installation groove 312; the material of the insulating member 33 is elastic material. The mounting groove 312 includes a middle groove section 313 and two end groove sections 314, and the two end groove sections 314 are respectively connected to the opposite ends of the middle groove section 313; the cross-sectional area of the two end groove sections 314 is smaller than the cross-sectional area of the middle groove section 313, and the two insulating members 33 are respectively arranged in the two end groove sections 314. The fixed module 30 also includes a filler, which is used to fill between the groove wall of the middle groove section 313 and the battery cell. The fixed module 30 is detachably arranged on the support carrier 10. The support carrier 10 is formed with a first mounting surface 131 and a second mounting surface 155, and the first mounting surface 131 and the second mounting surface 155 are arranged to intersect, and the fixed module 30 is installed on the first mounting surface 131 or the second mounting surface 155. The support carrier 10 includes a support base plate 11, a first mounting plate 13 and a second mounting plate 15; the first mounting plate 13 is arranged on the support base plate 11 and is arranged at an angle with the support base plate 11, and the first mounting plate 13 is formed with a first mounting surface 131, and the first mounting surface 131 is arranged at an angle with the support base plate 11; the second mounting plate 15 is arranged on the support base plate 11 and is located on the side of the first mounting plate 13 away from the first mounting surface 131, and the side of the second mounting plate 15 away from the support base plate 11 is formed with a second mounting surface 155. The second mounting plate 15 includes a first plate body 151 and a second plate body 153 arranged at an angle, the first plate body 151 is connected to the support base plate 11, the second plate body 153 is connected to the first mounting plate 13, and the first plate body 151 is formed with a second mounting surface 155. There are two fixed carriers 31, and the two fixed carriers 31 are detachably connected in sequence; at least one fixed carrier 31 is provided with a pass hole 315, and the pass hole 315 is connected to the installation cavity 311; there are at least two fixed modules 30; the support carrier 10 is provided with a plurality of installation holes 111, and the plurality of installation holes 111 are arranged in sequence along the circumference of the support carrier 10; the installation holes 111 are used to penetrate fasteners to detachably connect the support carrier 10 to the test equipment; the material of the support carrier 10 is metal material; the installation cavity 311 is a circular cavity.

The present application also proposes a test system, which includes a test device and a battery cell test fixture 100. The specific structure of the battery cell test fixture 100 refers to the above embodiment. Since the present test system adopts all the technical solutions of all the above embodiments, it at least has all the beneficial effects brought by the technical solutions of the above embodiments, which will not be described one by one here. Among them, the test device is a vibration test bench or an impact test bench; the support carrier 10 of the battery cell test fixture 100 is connected to the test device.

The above description is only a preferred embodiment of the present application, and does not limit the patent scope of the present application. All equivalent structural changes made by using the contents of the present application specification and drawings under the inventive concept of the present application, or directly/indirectly applied in other related technical fields are included in the patent protection scope of the present application.

Claims (12)

1. A battery cell testing fixture, comprising:

A support carrier for connection to a test device; and

The fixed module is arranged on the support carrier and comprises at least two fixed carriers, at least two fixed carriers enclose to form a closed installation cavity, and the installation cavity is used for installing and accommodating the battery cell.

2. The die test fixture of claim 1, wherein said stationary carrier is provided with mounting slots, said mounting slots of at least two of said stationary carriers circumscribing to form said mounting cavity.

3. The battery cell testing fixture of claim 2, wherein the mounting groove has opposite ends, and the fixing module further comprises two insulating members respectively arranged at the opposite ends of the mounting groove to respectively abut against the opposite ends of the battery cell.

4. The battery cell testing fixture of claim 3, wherein two opposite sides of the two insulating pieces are provided with positioning grooves, and two positioning grooves in the two insulating pieces are used for being sleeved at two opposite ends of the battery cell;

And/or, the insulating piece is movably arranged in the mounting groove;

And/or the insulating piece is made of elastic materials.

5. The battery cell testing fixture of claim 3, wherein the mounting slot comprises a middle slot section and two end slot sections, the two end slot sections being connected to opposite ends of the middle slot section;

the cross-sectional area of the two end groove sections is smaller than that of the middle groove section, and the two insulating pieces are respectively arranged in the two end groove sections.

6. The battery cell testing fixture of claim 5, wherein the fixture module further comprises a filler for filling between a wall of the middle slot section and the battery cell.

7. The die test fixture of any one of claims 1 to 6, wherein the fixing module is detachably disposed on the support carrier.

8. The die test fixture of claim 7, wherein the support carrier defines a first mounting surface and a second mounting surface, the first mounting surface and the second mounting surface being disposed in an intersecting relationship, the stationary module being mounted to either the first mounting surface or the second mounting surface.

9. The cell testing fixture of claim 8, wherein the support carrier comprises:

a support base plate;

The first mounting plate is arranged on the supporting bottom plate and forms an included angle with the supporting bottom plate, the first mounting plate is formed with the first mounting surface, and the first mounting surface and the supporting bottom plate form an included angle; and

The second mounting plate is arranged on the supporting bottom plate and is positioned on one side, away from the first mounting surface, of the first mounting plate, and the second mounting surface is formed on one side, away from the supporting bottom plate, of the second mounting plate.

10. The battery cell testing fixture of claim 9, wherein the second mounting plate comprises a first plate body and a second plate body disposed at an included angle, the first plate body being connected to the support base, the second plate body being connected to the first mounting plate, the first plate body being formed with the second mounting surface.

11. The cell testing fixture of any one of claims 1 to 6, wherein at least two of said fixed carriers are detachably connected in sequence;

And/or at least one of the fixed carriers is provided with a through hole, and the through hole is communicated with the mounting cavity;

And/or the number of the fixed modules is at least two;

And/or the support carrier is provided with a plurality of mounting holes, and the mounting holes are sequentially arranged along the circumferential direction of the support carrier; the mounting holes are used for penetrating fasteners to detachably connect the support carrier to the test equipment;

and/or the supporting carrier is made of a metal material;

And/or the mounting cavity is a circular cavity.

12. A test system, comprising:

the test equipment is a vibration test table or an impact test table; and

A cell test fixture as claimed in any one of claims 1 to 11, the support carrier of the cell test fixture being connected to the test device.