Extrusion testing device and extrusion testing system

Abstract

The utility model provides an extrusion testing device and an extrusion testing system, the extrusion testing device comprises a bearing assembly, the bearing assembly comprises a connecting piece and an extrusion piece which are oppositely arranged, the connecting piece is in driving connection with an external driving piece, and the extrusion piece can move along a first direction relative to the bearing assembly; the external driving piece drives the bearing assembly to move in the first direction through the connecting piece, so that the extrusion piece extrudes the side wall of the battery; the detection piece is arranged on the bearing assembly and used for detecting the acting force of the extrusion piece; the adjusting assembly is arranged on the bearing assembly and comprises a first driving part, and the first driving part is in driving connection with the extrusion part so as to adjust the acting force of the extrusion part on the battery; when the detection piece detects that the acting force of the extrusion piece is larger than a preset value, the first driving piece drives the extrusion piece to move in the direction close to the connecting piece so as to reduce the acting force of the extrusion piece on the battery. By applying the technical scheme of the utility model, the technical problem of low test efficiency can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of battery extrusion, in particular to an extrusion testing device and an extrusion testing system. Background Art

[0002] Most of the existing battery pack safety testing technologies use extrusion tests or simulation methods. Extrusion tests can make a more accurate assessment of the safety performance of battery packs. The commonly used method is to perform extrusion tests using battery extrusion equipment. However, due to the large range of existing extrusion equipment, when the extrusion equipment receives a stop command, there will be a delay in the transmission process, causing the extrusion head of the extrusion equipment to be unable to stop immediately, which will cause irreversible damage to the test sample and reduce the efficiency of the test. Utility Model Content

[0003] The embodiments of the utility model provide an extrusion testing device and an extrusion testing system, which can improve the technical problem of low testing efficiency.

[0004] In a first aspect, an embodiment of the utility model provides an extrusion test device, which includes: a receiving assembly, including a connecting member and an extrusion member arranged relatively to each other, the connecting member is drivingly connected to an external driving member, the extrusion member can move along a first direction relative to the receiving assembly, and the external driving member drives the receiving assembly to move along the first direction through the connecting member, so that the extrusion member squeezes the side wall of the battery; a detection member, which is arranged on the receiving assembly, and the detection member is used to detect the force of the extrusion member; an adjustment assembly, which is arranged on the receiving assembly, and the adjustment assembly includes a first driving member, and the first driving member is drivingly connected to the extrusion member to adjust the force of the extrusion member on the battery;

[0005] When the detection member detects that the force of the extrusion member is greater than a preset value, the first driving member drives the extrusion member to move toward the connecting member to reduce the force of the extrusion member on the battery.

[0006] In one embodiment, the receiving component further includes: a first receiving member; a second receiving member, which is arranged at intervals with the first receiving member along the first direction, and the second receiving member can move relative to the first receiving member along the first direction, the connecting member is arranged on a side of the first receiving member away from the second receiving member, the detecting member is arranged on a side of the first receiving member close to the second receiving member, the extruding member is arranged on a side of the second receiving member away from the first receiving member, and the adjusting component is arranged on one of the first receiving member or the second receiving member; wherein, when the extruding member extrudes the side wall of the battery, the second receiving member moves toward the side close to the first receiving member and extrudes the detecting member, so that the detecting member detects the magnitude of the force of the extruding member.

[0007] In one embodiment, the extrusion testing device further includes a guide assembly, which is disposed between the first receiving member and the second receiving member, and is used to guide the second receiving member.

[0008] In one embodiment, the guide assembly includes a guide column and a guide sleeve, the first receiving member has a first guide hole, the second receiving member has a second guide hole arranged in alignment with the first guide hole, the guide sleeve is inserted into the second guide hole and fixedly connected to the second receiving member, the axes of the guide column, the guide sleeve, the first guide hole and the second guide hole coincide with each other, and the guide column is inserted into the first guide hole and the guide sleeve along a first direction.

[0009] In one embodiment, the adjustment component also includes: a first connecting member, which is arranged on the second receiving member, and one end of the first driving member is rotatably arranged on the first connecting member; a second connecting member, which is arranged on a side of the second receiving member away from the first receiving member, and the extrusion member is located at an end of the second connecting member away from the second receiving member; a transmission member, which is arranged between the first driving member and the extrusion member, one end of the transmission member is drivingly connected to the other end of the first driving member, and the other end of the transmission member is connected to the extrusion member, and the first driving member drives the extrusion member to move via the transmission member.

[0010] In one embodiment, the second connecting member includes: a connecting plate, which is arranged on a side of the second receiving member away from the first receiving member; a connecting block, which is arranged on the connecting plate, and the middle part of the transmission member is rotatably arranged on the connecting block, and the rotation axis of the transmission member extends along the second direction; a connecting frame, which is arranged on the connecting plate and located below the connecting block, and the extrusion member is movably arranged on the connecting frame.

[0011] In one embodiment, the transmission member includes: a first transmission rod, one end of which is rotatably connected to the first driving member, and a second transmission rod, one end of which is hinged to the other end of the first transmission rod, and the other end of the second transmission rod is hinged to one end of the extrusion member close to the second receiving member.

[0012] In one embodiment, the first transmission rod includes a first section and a second section that are connected in sequence and arranged at an angle, the connection between the first section and the second section is rotatably connected to the connecting block, the end of the first section away from the second section is connected to the first driving member, and the end of the second section away from the first section is hinged to the end of the second transmission rod away from the extrusion member.

[0013] In one embodiment, the angle between the first section and the second section is a right angle.

[0014] In the second aspect, an embodiment of the utility model provides an extrusion test system, which includes: the above-mentioned extrusion test device; a terminal device; a data processing module, which is communicatively connected with an external drive member, the terminal device, and a sensor and a first drive member on the extrusion test device, the data processing module can receive a signal from the terminal device and control the external drive member to drive the receiving component to move, and when the detection member detects that the force of the extrusion member is greater than a preset value, the detection member feeds back a signal to the data processing module, so that the data processing module controls the first drive member to drive the extrusion member to move in a direction away from the battery; a power supply, which is electrically connected to the data processing module to power the data processing module.

[0015] By applying the technical solution of the utility model, an extrusion member and a detection member are arranged on the receiving component, and the force of the extrusion member can be timely adjusted by using the adjustment member. When the detection member detects that the force of the extrusion member is greater than a preset value, the first driving member drives the extrusion member to move away from the battery to reduce the force of the extrusion member on the battery. This can prevent the excessive extrusion force from causing irreversible damage to the battery structure, thereby protecting the battery structure and helping to improve the detection efficiency of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0017] Figure 1 It is a three-dimensional schematic diagram of an extrusion testing device provided by an embodiment of the utility model;

[0018] Figure 2 is a three-dimensional schematic diagram of another viewing angle of the extrusion testing device provided by an embodiment of the utility model;

[0019] Figure 3 It is a three-dimensional schematic diagram of an extrusion testing device provided by an embodiment of the utility model;

[0020] Figure 4 It is a structural schematic diagram of an extrusion testing system provided in an embodiment of the utility model.

[0021] The above drawings include the following reference numerals:

[0022] 11. Connecting piece; 12. Extrusion piece; 13. First receiving piece; 14. Second receiving piece;

[0023] 20. Inspection parts;

[0024] 31. first driving member; 32. first connecting member; 331. connecting plate; 332. connecting block; 333. connecting frame; 341. first transmission rod; 3411. first section; 3412. second section; 342. second transmission rod;

[0025] 41. guide column; 42. guide sleeve;

[0026] 50. Terminal equipment;

[0027] 60. Data processing module;

[0028] 70, power supply; 80, external drive component; X, first direction; Y, second direction. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model.

[0030] like Figures 1 to 3 As shown, in the first aspect, an embodiment of the utility model provides an extrusion test device, which includes: a receiving assembly, including a connecting member 11 and an extrusion member 12 that are relatively arranged, the connecting member 11 is drivingly connected to an external driving member 80, the extrusion member 12 can move relative to the receiving assembly along a first direction, and the external driving member 80 drives the receiving assembly to move along the first direction through the connecting member 11, so that the extrusion member 12 squeezes the side wall of the battery; a detection member 20, which is arranged on the receiving assembly, and the detection member 20 is used to detect the force of the extrusion member 12; an adjustment assembly, which is arranged on the receiving assembly, and the adjustment assembly includes a first driving member 31, and the first driving member 31 is drivingly connected to the extrusion member 12 to adjust the force of the extrusion member 12 on the battery; wherein, when the detection member 20 detects that the force of the extrusion member 12 is greater than a preset value, the first driving member 31 drives the extrusion member 12 to move in a direction close to the connecting member 11, so as to reduce the force of the extrusion member 12 on the battery.

[0031] In the present application, the first driving member 31 is a driving cylinder. The above structure is simple, which is not only convenient for installation and disassembly of the device, but also reliable in driving mode, thereby improving the efficiency of assembly and disassembly of the device and maintaining the stability of the device during operation. Optionally, the first driving member 31 can also be set as a driving motor or other structures, as long as it can meet the use requirements of the device, and no specific restrictions are made here.

[0032] Furthermore, the receiving component also includes: a first receiving member 13; a second receiving member 14, which is arranged at intervals with the first receiving member 13 along the first direction, and the second receiving member 14 can move relative to the first receiving member 13 along the first direction, the connecting member 11 is arranged on the side of the first receiving member 13 away from the second receiving member 14, the detecting member 20 is arranged on the side of the first receiving member 13 close to the second receiving member 14, the extruding member 12 is arranged on the side of the second receiving member 14 away from the first receiving member 13, and the adjusting component is arranged on one of the first receiving member 13 or the second receiving member 14; wherein, when the extruding member 12 squeezes the side wall of the battery, the second receiving member 14 moves toward the side close to the first receiving member 13 and squeezes the detecting member 20, so that the detecting member 20 detects the magnitude of the force of the extruding member 12. In the present application, the adjustment component is arranged on the second receiving member 14, so that it is convenient to timely adjust the extrusion force of the extrusion member 12, thereby improving the adjustment efficiency of the component, and preventing the extrusion member 12 from damaging the battery structure as much as possible. At the same time, the first receiving member 13 and the second receiving member 14 are square clamps. Optionally, the shapes and materials of the first receiving member 13 and the second receiving member 14 can also be set to other types. The specific setting should be selected according to the use environment of the device, as long as it can meet the use environment of the device, so as to improve the applicability and scope of application of the device.

[0033] Specifically, the extrusion test device further includes a guide assembly, which is disposed between the first receiving member 13 and the second receiving member 14, and is used to guide the second receiving member 14. The guide assembly can prevent the second receiving member 14 from being offset during movement, thereby ensuring the accuracy of the extrusion member 12 during extrusion.

[0034] Further, the guide assembly includes a guide column 41 and a guide sleeve 42, the first receiving member 13 has a first guide hole, the second receiving member 14 has a second guide hole aligned with the first guide hole, the guide sleeve 42 is inserted into the second guide hole and fixedly connected to the second receiving member 14, the axes of the guide column 41, the guide sleeve 42, the first guide hole and the second guide hole coincide with each other, and the guide column 41 is inserted into the first guide hole and the guide sleeve 42 along the first direction. The above structure is simple and easy to process, which can not only realize the guiding function of the assembly, but also reduce the production cost of the device, and the above structure is also convenient for assembly and disassembly of the device, thereby improving the assembly and disassembly efficiency of the device.

[0035] Specifically, the adjustment component also includes: a first connecting member 3211, which is arranged on the second receiving member 14, and one end of the first driving member 31 is rotatably arranged on the first connecting member 3211; a second connecting member 11, which is arranged on the side of the second receiving member 14 away from the first receiving member 13, and the extrusion member 12 is located at the end of the second connecting member 11 away from the second receiving member 14; a transmission member, which is arranged between the first driving member 31 and the extrusion member 12, one end of the transmission member is drivingly connected to the other end of the first driving member 31, and the other end of the transmission member is connected to the extrusion member 12, and the first driving member 31 drives the extrusion member 12 to move through the transmission member. In this arrangement, the force of the first driving member 31 can be transmitted through the transmission member, and the transmission member is fixed by means of the first connecting member 3211 and the second connecting member 11, so that the stability of the transmission member when transmitting the force can be ensured, thereby ensuring the stable operation of the device.

[0036] Further, the second connecting member 11 includes: a connecting plate 331, which is arranged on the side of the second receiving member 14 away from the first receiving member 13; a connecting block 332, which is arranged on the connecting plate 331, and the middle part of the transmission member is rotatably arranged on the connecting block 332, and the rotation axis of the transmission member extends along the second direction; a connecting frame 333, which is arranged on the connecting plate 331 and located below the connecting block 332, and the extrusion member 12 is movably arranged on the connecting frame 333. The above structure is a split structure. Of course, in other embodiments of the present application, the above structure can also be set as an integrated structure, as long as it can meet the use requirements of the device.

[0037] Specifically, the transmission member includes: a first transmission rod 341, one end of which is rotatably connected to the first driving member 31, and a second transmission rod 342, one end of which is hinged to the other end of the first transmission rod 341, and the other end of which is hinged to one end of the extrusion member 12 close to the second receiving member 14. This arrangement can change the direction of force transmission, so that it is finally transmitted to the extrusion member 12. At the same time, in the present application, an extrusion head is also provided on the connecting frame 333, and the extrusion head has a receiving hole arranged along the first direction. The extrusion member 12 is movably inserted into the receiving hole, so that the extrusion member 12 can be limited to ensure the stability of the extrusion member 12 when it moves.

[0038] Further, the first transmission rod 341 includes a first section 3411 and a second section 3412 which are connected in sequence and arranged at an angle, the connection between the first section 3411 and the second section 3412 is rotatably connected to the connection block 332, the end of the first section 3411 away from the second section 3412 is connected to the first driving member 31, and the end of the second section 3412 away from the first section 3411 is hinged to the end of the second transmission rod 342 away from the extrusion member 12. By setting the above structure, the force transmission direction of the first driving member 31 can be changed, so as to facilitate driving the extrusion member 12 to move along the first direction. At the same time, the above structure is simple and easy to process, which can not only reduce the processing difficulty of the component, but also reduce the production cost of the component, which is conducive to realizing mass production of the component.

[0039] Specifically, the angle between the first section 3411 and the second section 3412 is a right angle. Of course, in other embodiments of the present application, the angle between the first section 3411 and the second section 3412 can also be set to an acute angle or an obtuse angle. The specific setting should be selected according to the use environment of the device, so that the applicability and scope of application of the device can be improved, so that it can be applied to more different types of devices. For example, the angle can also be set to 70° or 120°, etc., as long as it can meet the use requirements of the device.

[0040] like Figure 4 As shown, in the second aspect, an embodiment of the utility model provides an extrusion test system, the extrusion test system comprising: the above-mentioned extrusion test device; a terminal device 50; a data processing module 60, which is communicatively connected with an external drive member 80, the terminal device 50, and a sensor and a first drive member 31 on the extrusion test device, the data processing module 60 being able to receive a signal from the terminal device 50 and control the external drive member 80 to drive the receiving component to move, when the detection member 20 detects that the force of the extrusion member 12 is greater than a preset value, the detection member 20 feeds back a signal to the data processing module 60, so that the data processing module 60 controls the first drive member 31 to drive the extrusion member 12 to move in a direction away from the battery; a power supply 70, which is electrically connected to the data processing module 60 to supply power to the data processing module 60.

[0041] In the embodiment of the present application, the terminal device 50 includes a computer.

[0042] By applying the technical solution of the utility model, an extrusion member 12 and a detection member 20 are arranged on the receiving component, and the force of the extrusion member 12 can be timely adjusted by using the adjustment component. When the detection member 20 detects that the force of the extrusion member 12 is greater than a preset value, the first driving member 31 drives the extrusion member 12 to move away from the battery to reduce the force of the extrusion member 12 on the battery. This can prevent the excessive extrusion force from causing irreversible damage to the structure of the battery, thereby protecting the structure of the battery and helping to improve the detection efficiency of the device.

[0043] It should be noted that the terms used here are only for describing specific embodiments, and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof. Unless otherwise specifically stated, the relative arrangement of the components and steps described in these embodiments, the numerical expressions and numerical values ​​do not limit the scope of the utility model. At the same time, it should be understood that for ease of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship. The techniques, methods and equipment known to ordinary technicians in the relevant fields may not be discussed in detail, but in appropriate cases, the techniques, methods and equipment should be regarded as part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, not as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following figures, so once an item is defined in one figure, it does not need to be further discussed in subsequent figures.

[0044] In the description of the present utility model, it needs to be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction, and therefore cannot be understood as limiting the scope of protection of the present utility model; the directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0045] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0046] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the utility model.

[0047] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. An extrusion testing device, characterized in that: The extrusion testing device comprises: A receiving assembly, comprising a connecting member and an extruding member arranged opposite to each other, wherein the connecting member is drivingly connected to an external driving member, and the extruding member can move along a first direction relative to the receiving assembly, and the external driving member drives the receiving assembly to move along the first direction through the connecting member, so that the extruding member extrudes the side wall of the battery; A detection member, arranged on the receiving assembly, and used to detect the magnitude of the force applied by the extrusion member; An adjustment component, comprising a first driving member, wherein the first driving member is drivingly connected to the extrusion member to adjust the force of the extrusion member on the battery; When the detection member detects that the force of the extrusion member is greater than a preset value, the first driving member drives the extrusion member to move toward the connecting member to reduce the force of the extrusion member on the battery.

2. The extrusion testing device according to claim 1, characterized in that: The receiving component also includes: The first receiving piece; A second receiving member is arranged with the first receiving member in a spaced relationship along the first direction, the second receiving member can move relative to the first receiving member along the first direction, the connecting member is arranged on a side of the first receiving member away from the second receiving member, the detecting member is arranged on a side of the first receiving member close to the second receiving member, the extruding member is arranged on a side of the second receiving member away from the first receiving member, and the adjusting component is arranged on one of the first receiving member or the second receiving member; Wherein, when the extruding member extrudes the side wall of the battery, the second receiving member moves toward the side close to the first receiving member and extrudes the detecting member, so that the detecting member detects the force of the extruding member.

3. The extrusion testing device according to claim 2, characterized in that: The extrusion testing device further includes a guide assembly, which is disposed between the first receiving member and the second receiving member and is used to guide the second receiving member.

4. The extrusion testing device according to claim 3, characterized in that: The guide assembly includes a guide column and a guide sleeve, the first receiving member has a first guide hole, the second receiving member has a second guide hole arranged in alignment with the first guide hole, the guide sleeve is inserted into the second guide hole and fixedly connected to the second receiving member, the axes of the guide column, the guide sleeve, the first guide hole and the second guide hole coincide with each other, and the guide column is inserted into the first guide hole and the guide sleeve along the first direction.

5. The extrusion testing device according to claim 2, characterized in that: The adjustment component also includes: A first connecting member is arranged on the second receiving member, and one end of the first driving member is rotatably arranged on the first connecting member; A second connecting member is arranged on a side of the second receiving member away from the first receiving member, and the extruding member is located at an end of the second connecting member away from the second receiving member; A transmission member is arranged between the first driving member and the extruding member, one end of the transmission member is drivingly connected to the other end of the first driving member, and the other end of the transmission member is connected to the extruding member, and the first driving member drives the extruding member to move through the transmission member.

6. The extrusion testing device according to claim 5, characterized in that: The second connecting member comprises: A connecting plate, arranged on a side of the second receiving member away from the first receiving member; A connecting block is arranged on the connecting plate, a middle portion of the transmission member is rotatably arranged on the connecting block, and a rotation axis of the transmission member extends along the second direction; A connecting frame is arranged on the connecting plate and is located below the connecting block, and the extruding member is movably arranged on the connecting frame.

7. The extrusion testing device according to claim 6, characterized in that: The transmission member comprises: a first transmission rod, one end of which is rotatably connected to the first driving member; A second transmission rod, one end of which is hinged to the other end of the first transmission rod, and the other end of which is hinged to one end of the extrusion member close to the second receiving member.

8. The extrusion testing device according to claim 7, characterized in that: The first transmission rod includes a first section and a second section that are connected in sequence and arranged at an angle, the connection between the first section and the second section is rotatably connected to the connecting block, the end of the first section away from the second section is connected to the first driving member, and the end of the second section away from the first section is hinged to the end of the second transmission rod away from the extrusion member.

9. The extrusion testing device according to claim 8, characterized in that: The angle between the first section and the second section is a right angle.

10. An extrusion test system, characterized in that: The extrusion test system comprises: An extrusion test device as claimed in any one of claims 1 to 9; Terminal equipment; a data processing module, which is in communication connection with the external drive, the terminal device, the sensor on the extrusion test device, and the first drive, and the data processing module is capable of receiving a signal from the terminal device and controlling the external drive to drive the receiving component to move; when the detection member detects that the force of the extrusion member is greater than a preset value, the detection member feeds back a signal to the data processing module, so that the data processing module controls the first drive to drive the extrusion member to move in a direction away from the battery; A power supply is electrically connected to the data processing module to supply power to the data processing module.

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