Extrusion test device and battery performance detection system

Abstract

The embodiment of the utility model discloses an extrusion test device and a battery performance detection system, the extrusion test device comprises a device frame body, a clamp assembly and an extrusion assembly, the device frame body is provided with a test platform, the test platform is rotatably arranged on the device frame body, and the relative position between the test platform and the device frame body is adjustable; the clamp assembly is provided with an accommodating cavity for mounting a sample to be tested; the extrusion assembly comprises an extrusion head, the extrusion head can move to make contact with the clamp assembly and apply extrusion acting force, an extrusion point position recognition mechanism is arranged between the extrusion head and the clamp assembly, and the extrusion point position recognition mechanism is used for determining the force application point position, acting on the clamp assembly, of the extrusion head. According to the scheme, the position of the to-be-tested sample and the position of the extrusion point can be determined and adjusted, so that the working efficiency of the extrusion test is conveniently improved.

Description

Technical Field

[0001] The present application relates to the technical field of power batteries, and in particular to an extrusion testing device and a battery performance testing system. Background Art

[0002] At present, in order to evaluate the performance of power batteries in applications, batteries are usually subjected to extrusion simulation tests. As the demand for battery life and battery performance continues to increase, the overall size of batteries is also getting larger, and conventional extrusion equipment can no longer meet the simulation test requirements of large-size batteries. Moreover, the increase in battery size will lead to an increase in weight. Therefore, in conventional test operations, the manual adjustment of the battery status will lead to low overall operating efficiency and even safety hazards. Utility Model Content

[0003] In view of the above problems, the present application provides an extrusion testing device and a battery performance testing system, which can improve the operating efficiency of power batteries during extrusion tests.

[0004] The technical means adopted by this application to solve the above technical problems are:

[0005] On the one hand, an embodiment of the present application provides an extrusion testing device, characterized in that it includes:

[0006] A device frame, wherein a test platform is disposed on the device frame, the test platform is rotatably disposed on the device frame, and the relative position between the test platform and the device frame is adjustable;

[0007] A fixture assembly is arranged on the test platform, and the fixture assembly is provided with a receiving cavity for installing a sample to be tested;

[0008] The extrusion assembly includes an extrusion head, which can move to contact the clamp assembly and apply an extrusion force. An extrusion point identification mechanism is provided between the extrusion head and the clamp assembly, and the extrusion point identification mechanism is used to determine the force application point of the extrusion head on the clamp assembly.

[0009] In the present embodiment, the clamp assembly can be used for the installation of the sample to be tested, such as the battery to be tested; the test platform can be used to synchronously drive the clamp assembly to rotate, thereby adjusting the current position state of the sample to be tested, and the adjustment operation is simpler and more convenient; the extrusion head can be used to apply extrusion force to the clamp assembly; and the extrusion point identification mechanism can be used to adjust the position of the extrusion head according to the force application point on the clamp assembly, thereby improving the operating efficiency of the battery to be tested during the extrusion test.

[0010] In some embodiments, a first driver is disposed on the device frame, and the first driver is transmission-connected to the test platform.

[0011] In this embodiment, the first driver is configured to adjust the current position state of the test platform.

[0012] In some embodiments, the device frame is provided with a baffle and a second driver for driving the baffle to move;

[0013] The baffle can move to contact the clamp assembly and clamp the clamp assembly together with the extrusion head.

[0014] In this embodiment, the baffle plate can be provided to clamp the fixture assembly together with the extrusion head, thereby facilitating the extrusion simulation test.

[0015] In some embodiments, the baffle is provided with an in-place detection mechanism, and the in-place detection mechanism is used to assist in adjusting the relative position of the test platform on the device frame.

[0016] In some embodiments, the in-position detection mechanism includes at least two distance measuring sensors disposed on the baffle, and the at least two distance measuring sensors are disposed toward the clamp assembly.

[0017] In this embodiment, by providing the at least two distance measuring sensors, the relative distances between the baffle and the fixture assembly detected by different distance measuring sensors can be compared to determine whether the position of the test platform is adjusted to the correct position.

[0018] In some embodiments, at least two second drivers are provided, and the in-position detection mechanism comprises a pressure sensor, and the pressure sensor is provided between the second driver and the baffle.

[0019] In this embodiment, by comparing the pressure values ​​fed back by the pressure sensors on different second drivers, it is also possible to determine whether the position of the test platform is adjusted to the correct position.

[0020] In some embodiments, an operating platform is provided on the device frame, a step groove is provided on the operating platform, and the test platform is provided on the step groove;

[0021] The depth of the step groove is adapted to the thickness of the test platform.

[0022] In this embodiment, the step groove is provided to facilitate the installation of the test platform and the smooth implementation of the extrusion simulation test.

[0023] In some embodiments, the width of the step groove is smaller than the diameter of the test platform.

[0024] In this embodiment, the actual movement distance of the baffle can be shortened by designing the width of the step groove.

[0025] In some embodiments, the fixture assembly includes a supporting frame and a simulation box, the supporting frame is disposed on the test platform, the accommodating cavity is disposed on the simulation box, and the simulation box is detachably connected to the supporting frame.

[0026] In this embodiment, the supporting frame body can be easily matched with the baffle, and the simulation box body can be used for extrusion cooperation with the extrusion head, and the separate design of the supporting frame body and the simulation box body can reduce material loss.

[0027] In some embodiments, the simulation box is provided with a first through hole and a second through hole for the pipeline to pass through.

[0028] In this embodiment, the first through hole and the second through hole are provided to facilitate the installation and fixation of the refrigerant pipeline of the battery to be tested.

[0029] In some embodiments, the pressing assembly is disposed on the device frame, and the relative position of the pressing assembly on the device frame is adjustable.

[0030] In this embodiment, by arranging the extrusion assembly on the device frame, the function of the entire extrusion testing device can be made more complete.

[0031] In some embodiments, the extrusion assembly includes an extrusion track, an extrusion body and a third driver, the extrusion track is arranged on the device frame, the extrusion body is arranged on the extrusion track, and the third driver is transmission-connected between the extrusion body and the extrusion track.

[0032] In the present embodiment, the third driver is provided to adjust the relative position of the extrusion body on the extrusion track, thereby changing the position of the extrusion head.

[0033] In some embodiments, a reserved groove is provided between the extrusion assembly and the test platform.

[0034] In the present embodiment, the provision of the reserved slot can facilitate subsequent maintenance operations.

[0035] In some embodiments, the extrusion point identification mechanism includes a positioning magnetic strip disposed on the clamp assembly and a magnetic sensor disposed on the extrusion head.

[0036] In this embodiment, by setting the magnetic sensor to sense the positioning magnetic strip, the preset extrusion point can be better judged and confirmed.

[0037] In some embodiments, the extrusion point recognition mechanism includes an identification member disposed on the clamp assembly and an identification camera disposed on the extrusion head.

[0038] In this embodiment, by setting the recognition camera to recognize the identification member, it is also possible to judge and confirm the preset extrusion point.

[0039] On the other hand, an embodiment of the present application provides a battery performance detection system, including a battery to be tested and the above-mentioned extrusion test device, wherein the battery to be tested is installed in the accommodating cavity.

[0040] In this embodiment, by applying the above-mentioned extrusion test device in the battery performance detection system, it is possible to reduce the workload of the operator in manually adjusting the battery to be tested during the test process, thereby improving the operating efficiency of the extrusion test.

[0041] In some embodiments, the battery to be tested includes a first pipe and a second pipe, and the first pipe and the second pipe are arranged on the fixture assembly;

[0042] A one-way valve is provided at the outlet end of the first pipeline;

[0043] A pipeline pressure detector is provided at the outlet end of the second pipeline.

[0044] In the present embodiment, the one-way valve can facilitate the input of the tracer sample into the pipeline; and the pipeline pressure detector can detect the pressure state in the pipeline.

[0045] Other features and advantages of the present application will be described in the subsequent description, or some features and advantages can be inferred or determined without doubt from the contents of the description, or can be learned by implementing the above-mentioned embodiments of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] Various other advantages and benefits will become apparent to those of ordinary skill in the art by reading the detailed description of the preferred embodiments below. The accompanying drawings are only for the purpose of illustrating the preferred embodiments and are not to be considered as limiting the present application. Moreover, the same reference numerals are used throughout the drawings to represent the same components. In the drawings:

[0047] Figure 1 This is a schematic structural diagram of an extrusion testing device from one viewing angle in some embodiments of the present application.

[0048] Figure 2 This is a schematic diagram of the structure of an extrusion testing device from another perspective in some embodiments of the present application.

[0049] Figure 3 This is a schematic diagram of the disassembled structure of an extrusion testing device according to some embodiments of the present application.

[0050] Some of the reference numerals in the specific implementation manner are as follows:

[0051] 1-device frame, 11-first driver, 12-baffle, 121-second driver, 13-operating platform, 131-step groove, 132-inner groove, 14-reserved groove;

[0052] 2-Test platform;

[0053] 3-fixture assembly, 31-carrying frame, 32-simulation box, 321-accommodating cavity, 322-first through hole, 323-second through hole;

[0054] 4-extrusion assembly, 41-extrusion head, 42-extrusion track, 43-extrusion body, 44-third drive;

[0055] 5-extrusion point identification mechanism, 51-positioning magnetic strip, 52-magnetic sensor;

[0056] 6-battery to be tested, 61-water inlet pipe, 62-water outlet pipe;

[0057] 7-in-place detection mechanism, 71-distance sensor;

[0058] 8- one-way valve; 9- pipeline pressure detector. DETAILED DESCRIPTION

[0059] The following embodiments of the technical solution of the present application are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present application, and are therefore only used as examples, and cannot be used to limit the scope of protection of the present application.

[0060] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" in the specification and claims of this application and the above-mentioned figure descriptions and any variations thereof are intended to cover non-exclusive inclusions.

[0061] In the description of the embodiments of the present application, the technical terms "first", "second", etc. are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features. In the description of the embodiments of the present application, the meaning of "multiple" is more than two, unless otherwise clearly and specifically defined.

[0062] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0063] In the description of the embodiments of the present application, the term "multiple" refers to more than two (including two). Similarly, "multiple groups" refers to more than two groups (including two groups), and "multiple pieces" refers to more than two pieces (including two pieces).

[0064] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, technical terms such as "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, it 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, and it can be the internal connection of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0065] At present, with the increasing demand for driving range and the continuous improvement of battery safety protection performance, the overall size and weight of power batteries are becoming larger and larger. By conducting an extrusion simulation test on the power battery, the process of the power battery being hit and deformed can be simulated to obtain the corresponding performance data. However, with the increase in the overall size and weight of the power battery, conventional extrusion test equipment is gradually unable to meet the test requirements; and during the test, it is often necessary to adjust the extrusion points according to different preset test conditions. Replacing the power battery to be tested and adjusting the extrusion points require a lot of manpower, and the overall operating efficiency is low. In addition, the power battery is prone to safety hazards during the movement process, which endangers the personal safety of the operator.

[0066] In order to solve the above technical problems, the present embodiment provides an extrusion test device and a battery performance detection system, which can improve the operating efficiency of the power battery during the extrusion test.

[0067] like Figures 1 to 3 As shown, according to some embodiments of the present application, an extrusion testing device is provided, characterized in that it includes:

[0068] A device frame 1, on which a test platform 2 is disposed, the test platform 2 is rotatably disposed on the device frame 1, and the relative position between the test platform 2 and the device frame 1 is adjustable;

[0069] A fixture assembly 3 is arranged on the test platform 2, and a receiving cavity 321 for mounting a sample to be tested is arranged on the fixture assembly 3;

[0070] The extrusion assembly 4 includes an extrusion head 41, which can move to contact the clamp assembly 3 and apply an extrusion force. An extrusion point identification mechanism 5 is arranged between the extrusion head 41 and the clamp assembly 3, and the extrusion point identification mechanism 5 is used to determine the force application point of the extrusion head 41 on the clamp assembly 3.

[0071] In some embodiments, Figure 1 , Figure 3 As shown, the test platform 2 is arranged in a circular shape, and at this time, the test platform 2 is rotatably arranged on the device frame 1 around its axis.

[0072] The fixture assembly 3 can be used for the installation of the sample to be tested, such as the battery 6 to be tested; the test platform 2 can synchronously drive the fixture assembly 3 to rotate, so as to adjust the current position state of the battery 6 to be tested, and the adjustment operation is simpler and more convenient; the extrusion head 41 can be used to apply extrusion force to the fixture assembly 3; the extrusion point identification mechanism 5 can be used to adjust the position of the extrusion head 41 according to the force application point on the fixture assembly 3, so as to improve the operating efficiency of the battery 6 to be tested during the extrusion test.

[0073] As an example of one of the applications, refer to Figure 2 , Figure 3 As shown, a first driver 11 is disposed on the device frame 1 , and the first driver 11 is transmission-connected to the test platform 2 .

[0074] In some embodiments, the first driver 11 is configured as a motor, and the first driver 11 and the test platform 2 can be connected to each other through gear meshing, worm gear, sprocket drive, pulley drive, or other transmission methods.

[0075] In some embodiments, the first driver 11 is configured as a rotary cylinder.

[0076] By providing the first driver 11 , it is possible to provide a driving force to adjust the current position state of the test platform 2 .

[0077] As an example of one of the applications, refer to Figures 1 to 3 As shown, the device frame 1 is provided with a baffle 12 and a second driver 121 for driving the baffle 12 to move; the baffle 12 can move to contact the clamp assembly 3 and form a clamp for the clamp assembly 3 with the extrusion head 41.

[0078] In some embodiments, the second driver 121 is configured as a telescopic cylinder, and the baffle 12 is disposed at a movable end of the second driver 121 , so that the baffle 12 can be driven to move in a horizontal direction through the telescopic movement of the second driver 121 .

[0079] The baffle 12 can be provided to clamp the clamp assembly 3 together with the extrusion head 41, so that when the extrusion head 41 contacts the clamp assembly 3 from one end, the baffle 12 can push against the clamp assembly 3 at the other end, thereby facilitating the extrusion simulation test.

[0080] As an example of one of the applications, refer to Figure 2As shown, the baffle 12 is provided with an in-place detection mechanism 7 , and the in-place detection mechanism 7 is used to assist in adjusting the relative position of the test platform 2 on the device frame 1 .

[0081] The in-position detection mechanism 7 can be used to detect and judge the relative position state between the baffle 12 and the clamp assembly 3, so as to control the operation of the first driver 11 based on the detection result to adjust the position state of the sample to be tested.

[0082] As an example of one of the applications, refer to Figure 1 , Figure 2 As shown, the in-position detection mechanism 7 includes at least two distance measuring sensors 71 arranged on the baffle 12 , and the at least two distance measuring sensors 71 are arranged toward the clamp assembly 3 .

[0083] In some embodiments, two distance measuring sensors 71 are provided, and are respectively disposed at two ends of the baffle 12 .

[0084] When used, the two distance measuring sensors 71 respectively detect the relative distance between their current position and the clamp assembly 3, and compare the two detected distance values. For example, when the difference between the two distance values ​​is not 0, it can be considered that the position of the clamp assembly 3 has not yet reached the preset requirement; and when the difference between the two distance values ​​is 0, that is, the positions of the two distance measuring sensors 71 to the clamp assembly 3 are the same, it can be considered that the clamp assembly 3 has reached the preset position.

[0085] By providing the at least two distance measuring sensors 71 , the relative distances between the baffle 12 and the fixture assembly 3 detected by different distance measuring sensors 71 can be compared to determine whether the position of the test platform 2 is adjusted to the correct position.

[0086] As an application example, at least two second drivers 121 are provided, and the in-position detection mechanism 7 includes a pressure sensor, which is provided between the second driver 121 and the baffle 12 .

[0087] In some embodiments, the second driver 121 is arranged along the length direction of the baffle 12 , and the pressure sensor is disposed between the second driver 121 and the baffle 12 at both ends of the baffle 12 .

[0088] When in use, the baffle 12 first moves to initially contact the clamp assembly 3 to form a force. At this time, the pressure values ​​detected by the two pressure sensors can be compared. For example, when the baffle 12 is moving but not in contact with the clamp assembly 3, the pressure values ​​of the two pressure sensors should be 0; when the baffle 12 is in contact with the clamp assembly 3, the pressure value of one of the pressure sensors is not 0. At this time, the pressure values ​​of the two pressure sensors are compared. If the difference between the two pressure values ​​is not 0, it can be considered that the clamp assembly 3 has not reached the preset position. If the difference between the two pressure values ​​is 0, it can be considered that the clamp assembly 3 has reached the preset position.

[0089] By comparing the pressure values ​​fed back by the pressure sensors on different second drivers 121 , it is also possible to determine whether the position of the test platform 2 is adjusted to the correct position.

[0090] As an example of one of the applications, refer to Figure 1 , Figure 3 As shown, an operating platform 13 is disposed on the device frame 1 , a step groove 131 is disposed on the operating platform 13 , and the test platform 2 is disposed on the step groove 131 ; the depth of the step groove 131 is adapted to the thickness of the test platform 2 .

[0091] In some embodiments, the baffle 12 is disposed beside the step groove 131 .

[0092] By setting the step groove 131, the installation of the test platform 2 can be facilitated, so that after the test platform 2 is installed, the height size of the device can be controlled at the location of the test platform 2; moreover, the suspended height of the baffle 12 after installation can be reduced, so as to improve the reliability of the baffle 12 during the movement process, so that the extrusion simulation test can be carried out more smoothly.

[0093] As an example of one of the applications, continue to refer to Figure 1 , Figure 3 As shown, the width of the step groove 131 is smaller than the diameter of the test platform 2 .

[0094] In some embodiments, an inner groove 132 is disposed on at least one side wall of the step groove 131 , and a portion of the test platform 2 is extended into the inner groove 132 .

[0095] In some embodiments, part of the test platform 2 is suspended.

[0096] By designing the width of the step groove 131, for example, setting the inner groove 132, the test platform 2 can be partially located within the waiting range of the baffle 12, which can facilitate shortening the length of the device and the actual movement distance of the baffle 12; and by setting the test platform 2 to be partially suspended, the operating state of the test platform 2 can be more intuitive, which is convenient for maintenance operations, such as level detection and correction of the test platform 2.

[0097] As an example of one of the applications, refer to Figures 1 to 3 As shown, the fixture assembly 3 includes a supporting frame 31 and a simulation box 32 , the supporting frame 31 is arranged on the test platform 2 , the accommodating cavity 321 is arranged on the simulation box 32 , and the simulation box 32 is detachably connected to the supporting frame 31 .

[0098] In some embodiments, the simulation box 32 is fixed to the support frame 31 by fasteners such as bolts.

[0099] In some embodiments, the shape and structure of the simulation box 32 are similar to the shape and structure of the box of the battery to be tested 6 .

[0100] The supporting frame 31 can be conveniently matched with the baffle 12 and used for signal detection of the in-place detection mechanism 7; and the simulation box 32 can be used for extrusion cooperation with the extrusion head 41, and the split design of the supporting frame 31 and the simulation box 32 can reduce material loss.

[0101] During application, the battery 6 to be tested can be first installed in the simulation box 32, and then the simulation box 32 can be installed on the supporting frame 31, and the baffle 12 can be driven to perform in-position detection to adjust the position state of the battery 6 to be tested; then the extrusion head 41 is driven close to the simulation box 32, and after confirming the force application point through the extrusion point identification mechanism 5, the extrusion head 41 is adjusted to the corresponding position, and then the extrusion test is performed.

[0102] As an example of one of the applications, refer to Figure 3 As shown, the simulation box 32 is provided with a first through hole 322 and a second through hole 323 for the pipeline to pass through.

[0103] In some embodiments, the first through hole 322 and the second through hole 323 correspond to the water inlet pipe 61 and the water outlet pipe 62 of the battery to be tested 6 respectively.

[0104] The first through hole 322 and the second through hole 323 can facilitate the installation and fixation of the refrigerant pipeline of the battery to be tested 6 .

[0105] As an example of one of the applications, refer to Figure 1 As shown, the pressing assembly 4 is disposed on the device frame 1 , and the relative position of the pressing assembly 4 on the device frame 1 is adjustable.

[0106] By arranging the extrusion assembly 4 on the device frame 1, the function of the entire extrusion testing device can be made more complete.

[0107] As an example of one of the applications, refer to Figures 1 to 3 As shown, the extrusion assembly 4 includes an extrusion rail 42, an extrusion body 43 and a third driver 44. The extrusion rail 42 is arranged on the device frame 1, the extrusion body 43 is arranged on the extrusion rail 42, and the third driver 44 is transmission-connected between the extrusion body 43 and the extrusion rail 42.

[0108] In some embodiments, the extrusion track 42 and the baffle 12 are respectively disposed on two sides of the test platform 2 .

[0109] In some embodiments, the third driver 44 is configured as a motor.

[0110] By providing the third driver 44 , the relative position of the extrusion body 43 on the extrusion track 42 can be adjusted, thereby achieving the position change of the extrusion head 41 .

[0111] As an example of one of the applications, refer to Figure 1 As shown, a reserved groove 14 is provided between the extrusion assembly 4 and the test platform 2 .

[0112] In some embodiments, the suspended portion of the test platform 2 is located above the reserved slot 14 .

[0113] The provision of the reserved groove 14 can facilitate subsequent maintenance operations, including cleaning of impurities on the bottom surface of the test platform 2 , adjustment of the state of the test platform 2 , and removal and replacement of the test platform 2 .

[0114] As an example of one of the applications, refer to Figure 1 , Figure 3 As shown, the extrusion point identification mechanism 5 includes a positioning magnetic strip 51 arranged on the clamp assembly 3 and a magnetic sensor 52 arranged on the extrusion head 41 .

[0115] In some embodiments, the positioning magnetic strip 51 is disposed at a force-bearing point on the clamp assembly 3 .

[0116] By setting up the magnetic sensor 52, when the extrusion head 41 is close to the clamp assembly 3, the position of the positioning magnetic strip 51 can be sensed according to the strength of the magnetic induction, and the operation of the third driver 44 can be controlled according to the sensing result, so as to better judge and confirm the preset extrusion force point, making the position adjustment of the extrusion head 41 more convenient.

[0117] As an application example, the extrusion point recognition mechanism 5 includes an identification member arranged on the clamp assembly 3 and a recognition camera arranged on the extrusion head 41 .

[0118] In some embodiments, the identification member is configured as any one of a color ribbon, a protrusion, and a groove, and the location of the identification member is the force-bearing point of the clamp assembly 3 .

[0119] The recognition camera is used to identify the current position of the identification element, and the operation of the third driver 44 is controlled based on the recognition result, thereby determining and confirming the preset extrusion point.

[0120] On the other hand, this embodiment also provides a battery performance detection system, including a battery to be tested 6 and the above-mentioned extrusion test device, wherein the battery to be tested 6 is installed in the accommodating cavity 321 .

[0121] By applying the above-mentioned extrusion test device in the battery performance detection system, it is possible to reduce the workload of the operator in manually adjusting the battery 6 to be tested during the test process, thereby improving the operating efficiency and application safety of the extrusion test.

[0122] As one application example, the battery to be tested 6 includes a first pipeline and a second pipeline, and the first pipeline and the second pipeline are arranged on the clamp assembly 3; a one-way valve 8 is provided at the outlet end of the first pipeline; and a pipeline pressure detector 9 is provided at the outlet end of the second pipeline.

[0123] In some embodiments, the first pipe and the second pipe correspond to the water inlet pipe 61 and the water outlet pipe 62 of the battery to be tested 6 respectively.

[0124] In some embodiments, the pipeline pressure detector 9 is configured as a pressure sensor.

[0125] By setting the one-way valve 8, it is convenient to input a tracer sample, such as a liquid, a colored gas, etc., into the pipeline, so that when the pipeline of the battery 6 to be tested is deformed and ruptured, the damaged position can be quickly located; and by setting the pipeline pressure detector 9, the pressure state in the pipeline can be detected, so that when the pipeline of the battery 6 to be tested is ruptured, the pipeline pressure detector 9 can detect the pressure change in the pipeline, and then obtain the current extrusion force value, so as to facilitate subsequent data statistics and analysis.

[0126] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them; although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application, and they should all be included in the scope of the claims and specification of the present application. In particular, as long as there is no structural conflict, the various technical features mentioned in the various embodiments can be combined in any way. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions that fall within the scope of the claims.

Claims

1. An extrusion testing device, characterized in that: include: A device frame, wherein a test platform is disposed on the device frame, the test platform is rotatably disposed on the device frame, and the relative position between the test platform and the device frame is adjustable; A fixture assembly is arranged on the test platform, and the fixture assembly is provided with a receiving cavity for installing a sample to be tested; The extrusion assembly includes an extrusion head, which can move to contact the clamp assembly and apply an extrusion force. An extrusion point identification mechanism is provided between the extrusion head and the clamp assembly, and the extrusion point identification mechanism is used to determine the force application point of the extrusion head on the clamp assembly.

2. The extrusion testing device according to claim 1, characterized in that: A first driver is arranged on the device frame, and the first driver is transmission-connected to the test platform.

3. The extrusion testing device according to claim 1 or 2, characterized in that: The device frame is provided with a baffle and a second driver for driving the baffle to move; The baffle can move to contact the clamp assembly and clamp the clamp assembly together with the extrusion head.

4. The extrusion testing device according to claim 3, characterized in that: The baffle is provided with an in-place detection mechanism, and the in-place detection mechanism is used to assist in adjusting the relative position of the test platform on the device frame.

5. The extrusion testing device according to claim 4, characterized in that: The in-position detection mechanism comprises at least two distance measuring sensors arranged on the baffle, and the at least two distance measuring sensors are arranged toward the clamp assembly.

6. The extrusion testing device according to claim 4, characterized in that: At least two second drivers are provided, and the in-position detection mechanism comprises a pressure sensor, which is provided between the second driver and the baffle.

7. The extrusion testing device according to any one of claims 1, 2, 4-6, characterized in that: An operating platform is provided on the device frame, a step groove is provided on the operating platform, and the test platform is provided on the step groove; The depth of the step groove is adapted to the thickness of the test platform.

8. The extrusion testing device according to claim 7, characterized in that: The width of the step groove is smaller than the diameter of the test platform.

9. The extrusion testing device according to claim 1 or 8, characterized in that: The fixture assembly comprises a bearing frame and a simulation box, wherein the bearing frame is arranged on the test platform, the accommodating cavity is arranged on the simulation box, and the simulation box is detachably connected to the bearing frame.

10. The extrusion testing device according to claim 9, characterized in that: The simulation box is provided with a first through hole and a second through hole for the pipeline to pass through.

11. The extrusion testing device according to claim 1 or 10, characterized in that: The extrusion assembly is arranged on the device frame, and the relative position of the extrusion assembly on the device frame is adjustable.

12. The extrusion testing device according to claim 11, characterized in that: The extrusion assembly comprises an extrusion track, an extrusion body and a third driver. The extrusion track is arranged on the device frame, the extrusion body is arranged on the extrusion track, and the third driver is drivingly connected between the extrusion body and the extrusion track.

13. The extrusion testing device according to claim 12, characterized in that: A reserved groove is arranged between the extrusion assembly and the test platform.

14. The extrusion testing device according to claim 1 or 13, characterized in that: The extrusion point identification mechanism includes a positioning magnetic strip arranged on the clamp assembly and a magnetic sensor arranged on the extrusion head.

15. The extrusion testing device according to claim 1 or 13, characterized in that: The extrusion point recognition mechanism includes an identification member arranged on the clamp assembly and an identification camera arranged on the extrusion head.

16. A battery performance detection system, characterized in that: It comprises a battery to be tested and the extrusion test device according to any one of claims 1 to 15, wherein the battery to be tested is installed in the accommodating cavity.

17. The battery performance detection system according to claim 16, characterized in that: The battery to be tested comprises a first pipe and a second pipe, and the first pipe and the second pipe are passed through the fixture assembly; A one-way valve is provided at the outlet end of the first pipeline; A pipeline pressure detector is provided at the outlet end of the second pipeline.

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