CN221350458U - Battery torsional rigidity testing tool and battery testing line - Google Patents

Abstract

The application relates to the technical field of detection equipment, and provides a battery torsional rigidity testing tool and a battery testing line. The torsional rigidity test fixture of battery includes: the frame assembly comprises a stress frame and a plurality of supporting pieces arranged on the periphery of the stress frame, and a first connecting piece and a second connecting piece are arranged on two sides of the stress frame along a first direction; the restraining assembly is arranged below the frame assembly, comprises two fixed beams and two mounting beams, wherein the two fixed beams are arranged at intervals along a first direction and are respectively connected with the first connecting piece and the second connecting piece in a rotating way, and the two mounting beams are arranged at intervals along a second direction perpendicular to the first direction and are respectively connected with the two fixed beams; the two groups of pressure loading mechanisms are arranged on two sides of the stress frame along the first direction and towards the constraint assembly, each group of pressure loading mechanisms comprises two force application assemblies arranged at intervals along the second direction, and the force application assemblies are provided with pressure sensors. By the technical scheme, the detection efficiency and the detection precision can be improved.

Description

Battery torsional rigidity testing tool and battery testing line

Technical Field

The application relates to the technical field of detection equipment, in particular to a battery torsional rigidity testing tool and a battery testing line.

Background

This section provides merely background information related to the present disclosure and is not necessarily prior art.

Currently, with the rapid development of new energy automobiles, batteries are increasingly coming into the public view. The torsional rigidity of the battery is an important parameter for judging the use safety of the battery, and the torsional rigidity directly affects the safety and reliability of the battery and the whole vehicle.

In the related art, the torsional rigidity test of the battery is complex, and the torsional rigidity of the battery can not be simulated and tested when the whole vehicle frame is twisted under the condition of being mounted on the vehicle.

Disclosure of utility model

In view of the above problems, the present application aims to provide a battery torsional stiffness testing tool and a battery testing line, which are used for improving the efficiency of the battery torsional stiffness test and simulating the torsional stiffness of the battery when the whole vehicle frame is twisted under the condition of mounting the test battery. The aim is achieved by the following technical scheme:

In a first aspect, the present application provides a battery torsional stiffness testing tool, comprising: the frame assembly comprises a stress frame and a plurality of supporting pieces arranged on the periphery of the stress frame, and a first connecting piece and a second connecting piece are respectively arranged on two sides of the stress frame along a first direction; the restraining assembly is arranged below the frame assembly and comprises two fixed beams and two mounting beams, the two fixed beams are arranged at intervals along the first direction and are respectively connected with the first connecting piece and the second connecting piece in a rotating way, the two mounting beams are used for mounting two sides of a battery and are arranged at intervals along a second direction perpendicular to the first direction, and two ends of each mounting beam are respectively connected with the two fixed beams; the two groups of pressure loading mechanisms are arranged on two sides of the stressed frame along the first direction and towards the constraint assembly, each group of pressure loading mechanisms comprises two force application assemblies arranged at intervals along the second direction, each force application assembly is provided with a pressure sensor, and each force application assembly is used for applying pressure to the constraint assembly.

In the technical scheme, the plurality of supporting pieces are arranged on the peripheral side of the stress frame and integrally support and hang the stress frame. The two fixed beams of the constraint component are respectively connected with the stressed frame in a rotating way through the first connecting piece and the second connecting piece, the two mounting beams of the constraint component are used for mounting two opposite sides of the battery, and after the battery is mounted on the two mounting beams of the constraint component, the constraint condition of the frame on the battery can be simulated in a matched way with the two fixed beams. When the torsion test is carried out on the battery, the two force application components which are positioned on the diagonal lines in the four force application components are used for applying pressure to the constraint component so as to provide torsion force for the constraint component and drive the battery to twist, so that when the battery mounted on the constraint component is deformed or damaged due to torsion, the torsion force during the torsion damage of the battery can be tested by reading the pressure of the pressure sensor of the force application component, and further the torsion rigidity of the battery can be tested.

Specifically, the first group of pressure loading mechanisms comprises a first force application component and a second force application component, the second group of pressure loading mechanisms comprises a third force application component and a fourth force application component, the first force application component and the third force application component are correspondingly arranged on two opposite sides of the stressed frame along the first direction, and the second force application component and the fourth force application component are correspondingly arranged on two opposite sides of the stressed frame along the first direction. The first force application assembly of the first set of pressure loading mechanisms may be used to apply pressure to the restraint assembly while the second set and the fourth force application assembly are used to apply pressure to provide torsional force to the restraint assembly. Or applying pressure to the restraint assembly by using a second force application assembly in the first set of pressure loading mechanisms, and simultaneously applying pressure to the restraint assembly by using a second force application assembly and a third force application assembly in the second set to provide torsional force to the restraint assembly.

In addition, the battery torsional rigidity testing tool provided by the application can also have the following additional technical characteristics:

In some embodiments of the present application, two ends of the mounting beam are respectively movably connected to two fixed beams.

In the technical scheme, the two fixed beams of the constraint assembly are relatively fixed, the mounting beam and the two fixed beams are movably connected, namely, the mounting beam can reciprocate relative to the two fixed beams, so that the distance between the two mounting beams is adjusted, batteries with different specifications and sizes can be mounted, and torsional rigidity tests can be carried out on the batteries with different specifications and sizes.

In some embodiments of the present application, a first connection adjusting member and a second connection adjusting member are respectively disposed at two ends of the mounting beam, the first connection adjusting member is sleeved on one of the fixing beams, the second connection adjusting member is sleeved on the other fixing beam, and the first connection adjusting member and the second connection adjusting member are respectively adapted to reciprocate along the two fixing beams.

In the above technical scheme, through set up first connection regulating part and second connection regulating part respectively at the both ends of hanging the roof beam, two fixed beams are located to first connection regulating part and second connection regulating part movably cover respectively, through the position of adjustment first connection regulating part and second connection regulating part on two fixed beams to can realize adjusting the position of hanging the roof beam on the fixed beam, and then can realize adjusting the clearance between two hanging the roof beam, with the battery that the restraint subassembly can adapt to the different specification and dimension of hanging.

In some embodiments of the present application, a first insertion groove is formed on a side of the first connection adjusting member facing the mounting beam, and one end of the mounting beam is inserted into the first insertion groove and is connected with the first connection adjusting member through a first fastener; and/or, a second inserting groove is formed in one side, facing the mounting beam, of the second connection adjusting piece, and the other end of the mounting beam is inserted into the second inserting groove and is connected with the second connection adjusting piece through a second fastening piece.

In the above technical scheme, the one end of the mounting beam is inserted in the first inserting groove of the first connection adjusting piece, and is detachably connected with the first connection adjusting piece through the first fastener, so that the mounting and the dismounting are facilitated. Similarly, the other end of the mounting beam is inserted into the second inserting groove of the second connection adjusting piece and is detachably connected with the second connection adjusting piece through the second fastening piece, so that the mounting beam is convenient to mount and detach, and batteries with different lengths can be mounted in an adaptive manner through replacing the mounting beams with different lengths.

In some embodiments of the application, each of the mounting beams is provided with at least one mounting connection for connection with a side of the battery.

In the technical scheme, the mounting beam is fixedly connected with the side part of the battery through at least one mounting connecting piece, so that the connection condition between the battery and the frame beam of the frame can be simulated, and the mounting and the dismounting are convenient.

In some embodiments of the present application, at least one hanging ring is disposed on a side of each of the mounting beams facing the stressed frame.

In the technical scheme, one side of each mounting beam, which faces the stressed frame, is provided with at least one lifting ring, the lifting rings are used for being connected with lifting equipment, and the lifting equipment lifts the constraint component after the battery is mounted and the first connecting piece and the second connecting piece which are arranged on two sides of the stressed frame, so that the connection efficiency of the constraint component and the stressed frame is improved.

In some embodiments of the present application, the force application component includes a connection seat, a pressure sensor, a force application member and a roller component that are sequentially connected from the force frame to the fixed beam; the connecting seat is connected with one side of the stress frame, which faces the constraint assembly, the roller assembly is in contact connection with one side of the fixed beam, which faces the stress frame, and the force application piece is used for driving the roller assembly to apply pressure to the fixed beam.

In the technical scheme, the connecting seat is connected with one side of the bottom of the stressed frame, the force application part can extend or retract, so that the roller assembly can be driven to move towards the direction of the fixed beam to apply pressure to the fixed beam, the pressure applied to the fixed beam by the force application part through the roller assembly can be obtained in real time through the pressure sensor under the action of the reaction force, the torsional rigidity of the battery can be conveniently tested by reading the numerical value of the pressure sensor, and the structure and the principle are simple and easy to realize.

In some embodiments of the application, the roller assembly includes: the fixed frame is connected with the force application piece; the rolling shaft is connected with one side of the fixing frame, which is away from the force application piece; the roller is sleeved on the roller and is suitable for rotating relative to the roller, and the roller is in contact connection with one side, facing the stressed frame, of the fixed beam.

In the technical scheme, the fixing frame is connected with the force application part, and the power output shaft of the force application part can drive the fixing frame to extend or retract when extending or retracting so as to realize that the roller arranged on the roller can be driven to press down or retract, so that pressure can be applied to the fixed beam when the roller presses down, and the power output shaft can retract after the test is finished so as to stop applying the pressure to the fixed beam.

In some embodiments of the application, a level is provided on the side of the fixed beam facing the force-receiving frame.

In the above technical scheme, through setting up the spirit level in the fixed beam towards one side of atress frame to show the levelness of fixed beam through the spirit level, be convenient for test again under the condition that the fixed beam is in the level, and be convenient for when exerting pressure to the fixed beam, show the deflection that the fixed beam produced because of the atress in real time.

In some embodiments of the present application, the fixing beam is provided with a first connection hole, and the first connection member and the second connection member each include: the mounting block is fixedly connected with the stress frame and is arranged corresponding to the fixed beam, one side of the mounting block, which faces the fixed beam, is provided with a mounting groove, and two side walls of the mounting groove are respectively provided with a second connecting hole and a third connecting hole; the fixing beam part is installed in the installation groove, and the pin shaft penetrates through the second connecting hole, the first connecting hole and the third connecting hole, so that the fixing beam is rotationally connected with the mounting block.

In the technical scheme, the mounting piece is fixedly arranged on the stressed frame, and because the fixed beams are rotationally connected with the mounting blocks through the pin shafts, when the force application components apply pressure to the fixed beams, the two force application components positioned on the diagonal line apply pressure to the two fixed beams, and the two fixed beams can drive the battery to twist, so that the torsion test of the battery can be realized.

In some embodiments of the present application, the stress frame includes a first frame body and a second frame body stacked in a vertical direction, and the second frame body is located between the first frame body and the pressure loading mechanism and connected to the first frame body and the pressure loading mechanism, respectively.

In the technical scheme, the stress frame can be subjected to the reverse acting force of the force application assembly, so that the stress frame is arranged to be a first frame body and a second frame body which are stacked, the overall compressive strength of the stress frame can be increased, the risk of damage of the stress frame can be reduced, and the stability of torsional rigidity testing of a product on a battery can be improved.

In a second aspect, the present application provides a battery test line comprising: the transport device is used for transporting the battery; and a battery torsional rigidity testing tool as in any one of the embodiments of the first aspect, for performing torsional rigidity testing on the battery.

The battery testing line provided in the second aspect of the present application includes the battery torsional rigidity testing tool according to any one of the above embodiments, so that the battery testing line has the technical effects of any one of the above embodiments, and will not be described herein.

The foregoing description is only an overview of the present application, and is intended to be implemented in accordance with the teachings of the present application in order that the same may be more clearly understood and to make the same and other objects, features and advantages of the present application more readily apparent.

Drawings

Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the application. Also, like reference numerals are used to designate like parts throughout the figures. In the drawings:

Fig. 1 is a schematic diagram of an assembly structure of a battery torsional rigidity testing tool according to some embodiments of the present application;

fig. 2 is an exploded view of a tool for testing torsional stiffness of a battery according to some embodiments of the present application;

FIG. 3 is a schematic diagram of an assembled structure of a restraint assembly and a battery according to some embodiments of the present application;

FIG. 4 is a schematic diagram of an exploded view of a force application assembly according to some embodiments of the present application;

The direction of the X axis of the coordinate system in fig. 1 to 3 represents the first direction, and the direction of the Y axis represents the second direction.

The reference numerals are as follows:

100. Testing tool for torsional rigidity of battery; 200. a battery;

11. A force-bearing frame; 12. a support; 13. a first connector; 14. a second connector; 20. a restraint assembly; 21. a fixed beam; 22. mounting a beam; 31. a force application assembly; 40. a level gauge;

111. A first frame body; 112. a second frame body; 131. a mounting block; 132. a pin shaft; 211. a first connection hole; 221. mounting a connecting piece; 222. a hanging ring; 223. a first connection adjuster; 224. a second connection adjuster; 311. a connecting seat; 312. a pressure sensor; 313. a force application member; 314. a fixing frame; 315. a roller; 316. a roller;

1311. A mounting groove; 3111. reinforcing ribs.

Detailed Description

Embodiments of the technical scheme of the present application will be described in detail below with reference to the accompanying drawings. The following examples are only for more clearly illustrating the technical aspects of the present application, and thus are merely examples, and are not intended to limit the scope of the present application.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "comprising" and "having" and any variations thereof in the description of the application and the claims and the description of the drawings above are intended to cover a non-exclusive inclusion.

In the description of embodiments of the present application, the technical terms "first," "second," and the like are used merely to distinguish between different objects and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated, a particular order or a primary or secondary relationship. In the description of the embodiments of the present application, the meaning of "plurality" is two or more unless explicitly defined otherwise.

Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the application. The appearances of such phrases in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. Those of skill in the art will explicitly and implicitly appreciate that the embodiments described herein may be combined with other embodiments.

In the description of the embodiments of the present application, the term "and/or" is merely an association relationship describing an association object, and indicates that three relationships may exist, for example, a and/or B may indicate: a exists alone, A and B exist together, and B exists alone. In addition, the character "/" herein generally indicates that the front and rear associated objects are an "or" relationship.

In the description of the embodiments of the present application, the term "plurality" means two or more (including two), and similarly, "plural sets" means two or more (including two), and "plural sheets" means two or more (including two).

In the description of the embodiments of the present application, the orientation or positional relationship indicated by the technical terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. are based on the orientation or positional relationship shown in the drawings, and are merely for convenience of description and simplification of the description, and do not indicate or imply that the apparatus or element referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the embodiments of the present application.

In the description of the embodiments of the present application, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured" and the like should be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally formed; or may be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the embodiments of the present application will be understood by those of ordinary skill in the art according to specific circumstances.

Currently, the application of power batteries is more widespread from the development of market situation. The power battery is not only applied to energy storage power supply systems such as hydraulic power, firepower, wind power and solar power stations, but also widely applied to electric vehicles such as electric bicycles, electric motorcycles, electric automobiles, and the like, and a plurality of fields such as military equipment, aerospace, and the like. With the continuous expansion of the application field of the power battery, the market demand of the power battery is also continuously expanding.

The torsional rigidity of the battery is an important parameter for judging the use safety of the battery, and the torsional rigidity directly affects the safety and reliability of the battery and the whole vehicle.

In the related art, the torsional rigidity test of the battery mostly relies on the computer aided engineering technology to carry out simulation analysis, and the general analysis is based on the assumption of no defects of structural materials, if the actual materials are defective, the simulation analysis is further needed, so that the test is complex, and the torsional rigidity of the battery can not be simulated and tested when the whole vehicle frame is twisted under the condition of mounting.

In order to solve the problems that the rigidity test of the battery is complex and the torsional rigidity of the battery can not be simulated and tested under the condition of mounting the battery, the application designs a battery torsional rigidity test tool which simulates a frame beam for mounting the battery in a frame by utilizing two fixed beams and two mounting beams of a constraint component, and a stress frame is arranged above the constraint component and is supported and suspended by a plurality of supporting pieces arranged on the periphery of the stress frame. Meanwhile, a first connecting piece and a second connecting piece which are rotationally connected with two fixed beams of the constraint component are arranged on two opposite sides of the stress frame, two groups of pressure loading mechanisms are arranged on two opposite sides of the stress frame, each group of pressure loading mechanisms is provided with two application components which are arranged at intervals, the two application components of each group of pressure loading mechanisms are symmetrically arranged with each other, and pressure is applied to the constraint component by utilizing two application components which are positioned on diagonal lines in the four application components so as to provide torsion force for the constraint component and drive the battery to twist, so that when the battery mounted on the constraint component is deformed or damaged due to torsion, the torsion force of the battery during torsion damage can be tested by reading the pressure of the pressure sensor of the application component, and further the torsional rigidity of the battery is tested.

The battery torsional rigidity testing tool 100 disclosed by the embodiment of the application is used for testing the torsional rigidity of a battery.

Referring to fig. 1 to 3, fig. 1 is a schematic diagram illustrating an assembly structure of a battery torsional stiffness testing tool according to some embodiments of the present application; fig. 2 is an exploded view of a tool for testing torsional stiffness of a battery according to some embodiments of the present application; fig. 3 is a schematic diagram illustrating an assembly structure of a restraint assembly and a battery according to some embodiments of the present application. The embodiment of the application provides a battery torsional rigidity testing tool 100, which comprises a frame assembly, a constraint assembly 20 and two groups of pressure loading mechanisms. The frame assembly comprises a stress frame 11 and a plurality of supporting pieces 12 arranged on the periphery side of the stress frame 11, and a first connecting piece 13 and a second connecting piece 14 are respectively arranged on two sides of the stress frame 11 along a first direction; the restraint assembly 20 is arranged below the frame assembly and comprises two fixed beams 21 and two mounting beams 22 connected with the two fixed beams 21, the two fixed beams 21 are arranged at intervals along a first direction and are respectively connected with the first connecting piece 13 and the second connecting piece 14 in a rotating way, the two mounting beams 22 are used for mounting two sides of the battery 200 and are arranged at intervals along a second direction perpendicular to the first direction, and the mounting beams 22 are respectively connected with the two fixed beams 21; the two groups of pressure loading mechanisms are arranged on two sides of the stressed frame 11 along the first direction and towards the constraint assembly 20, each group of pressure loading mechanisms comprises two force application assemblies 31 which are arranged at intervals along the second direction, the force application assemblies 31 are provided with pressure sensors 312, and the force application assemblies 31 are used for applying pressure to the constraint assembly 20.

The stress frame 11 is a frame structure formed by surrounding a plurality of sectional materials.

The support 12 may be a support tube or a support plate, etc. For example, the support 12 may be bolted or welded to the stressing frame 11.

The first connecting piece 13 and the second connecting piece 14 are arranged on one side of the stress frame 11 facing the constraint assembly 20, and the two fixing beams 21 are hinged with the first connecting piece 13 and the second connecting piece 14 respectively.

Illustratively, the number of the supporting members 12 is four, and the four supporting members 12 are symmetrically disposed on opposite sides of the force receiving frame 11 in two groups.

The fixing beam 21 and the mounting beam 22 are made of uniform materials. Illustratively, the battery is rectangular overall, two fixing beams 21 correspond to both sides of the battery in the length direction, and two mounting beams 22 correspond to both sides of the battery in the width direction.

The force application assembly 31 is fixedly arranged on the side, facing the restraint assembly 20, of the force receiving frame 11, and is used for applying pressure to the restraint assembly 20, and the pressure sensor 312 is used for acquiring the pressure value applied by the restraint assembly 20 in real time.

The plurality of supporting pieces 12 are arranged on the periphery of the stress frame 11, so that the stress frame 11 is integrally supported and suspended by the plurality of supporting pieces 12. The two fixed beams 21 of the restraint assembly 20 are respectively connected with the stressed frame 11 in a rotating way through the first connecting piece 13 and the second connecting piece 14, the two mounting beams 22 of the restraint assembly 20 are used for mounting two opposite sides of a battery, and after the battery is mounted on the two mounting beams 22 of the restraint assembly 20, the restraint condition of the frame to the battery can be simulated in a matched way with the two fixed beams 21. When the torsion test is performed on the battery, the torsion force is provided to the restraint assembly 20 by using two force application assemblies 31 positioned on the diagonal lines of the four force application assemblies 31 to apply the pressure to the restraint assembly 20, and the battery is driven to twist, so that when the battery 200 mounted on the restraint assembly 20 is deformed or damaged due to torsion, the torsion force when the battery 200 is damaged by torsion can be tested by reading the pressure of the pressure sensor 312 of the force application assembly 31, and further the torsional rigidity of the battery 200 can be tested.

Specifically, the first set of pressure loading mechanisms includes a first force application component 31 and a second force application component 31, the second set of pressure loading mechanisms includes a third force application component 31 and a fourth force application component 31, the first force application component 31 and the third force application component 31 are correspondingly disposed on opposite sides of the force frame 11 along the first direction, and the second force application component 31 and the fourth force application component 31 are correspondingly disposed on opposite sides of the force frame 11 along the first direction. The first force application assembly 31 of the first set of pressure loading mechanisms may be utilized to apply pressure to the restraint assembly 20 while the second set and the fourth force application assembly 31 are utilized to apply pressure to provide torsional force to the restraint assembly 20. Or applies pressure to the restraint assembly 20 with the second force application assembly 31 in the first set of pressure loading mechanisms while applying pressure to the restraint assembly 20 with the third force application assembly 31 in the second set to provide torsional force to the restraint assembly 20.

According to some embodiments of the present application, both ends of the mounting beam 22 are movably connected with the two fixing beams 21, respectively.

Illustratively, each mounting beam 22 has two ends slidably or rollably connected to the fixed beam 21 and is capable of being relatively fixed to the fixed beam 21 when the mounting beam 22 is moved to a predetermined position.

The two fixed beams 21 of the restraint assembly 20 are relatively fixed, and the mounting beam 22 is movably connected with the two fixed beams 21, namely, the mounting beam 22 can reciprocate relative to the two fixed beams 21, so that the distance between the two mounting beams 22 is adjusted, batteries with different specifications and sizes can be mounted, and the torsional rigidity test of the batteries 200 with different specifications and sizes can be realized.

Referring to fig. 3, according to some embodiments of the present application, two ends of the mounting beam 22 are respectively provided with a first connection adjusting member 223 and a second connection adjusting member 224, the first connection adjusting member 223 is sleeved on one fixed beam 21, the second connection adjusting member 224 is sleeved on the other fixed beam 21, and the first connection adjusting member 223 and the second connection adjusting member 224 are respectively adapted to reciprocate along the two fixed beams 21.

Illustratively, the first connection adjuster 223 is provided with a first mounting cavity, the second connection adjuster 224 is provided with a second mounting cavity, the axial directions of the first mounting cavity and the second mounting cavity are the same as the axial directions of the fixed beams 21, one of the two fixed beams 21 is penetrated in the first mounting cavity, and the other is penetrated in the second mounting cavity.

Through set up first connection regulating part 223 and second connection regulating part 224 respectively at the both ends of hanging beam 22, first connection regulating part 223 and second connection regulating part 224 movably cover are located two fixed beams 21 respectively, through the position of adjustment first connection regulating part 223 and second connection regulating part 224 on two fixed beams 21 to can realize adjusting the position of hanging beam 22 on fixed beam 21, and then can realize adjusting the clearance between two hanging beams 22, in order to realize restraining subassembly 20 can adapt to the battery 200 of different specification sizes of hanging.

Referring to fig. 3, according to some embodiments of the present application, a first insertion groove is formed on a side of the first connection adjusting member 223 facing the mounting beam 22, and one end of the mounting beam 22 is inserted into the first insertion groove and connected to the first connection adjusting member 223 through a first fastener; the second connection adjusting piece 224 is provided with a second inserting groove towards one side of the mounting beam 22, and the other end of the mounting beam 22 is inserted into the second inserting groove and is connected with the second connection adjusting piece 224 through a second fastening piece.

Illustratively, the two side walls of the first socket groove are correspondingly provided with a first fixing hole and a second fixing hole, one end of the mounting beam 22 is provided with a third fixing hole, and a first fastener (such as a pin 132 or a bolt) passes through the first fixing hole, the third fixing hole and the second fixing hole, so that one end of the mounting beam 22 is connected with the first connection adjusting member 223.

Similarly, the two side walls of the second plugging slot are correspondingly provided with a fourth fixing hole and a fifth fixing hole, the other end of the mounting beam 22 is provided with a sixth fixing hole, and a second fastener (such as a pin 132 or a bolt) passes through the fourth fixing hole, the sixth fixing hole and the fifth fixing hole, so that one diamond-shaped end of the mounting beam 22 is connected with the second connection adjusting piece 224.

One end of the mounting beam 22 is inserted into the first inserting groove of the first connection adjusting piece 223 and is detachably connected with the first connection adjusting piece 223 through a first fastener, so that the mounting and the dismounting are facilitated. Similarly, the other end of the mounting beam 22 is inserted into the second inserting groove of the second connection adjusting piece 224, and is detachably connected with the second connection adjusting piece 224 through a second fastener, so that the mounting beam 22 with different lengths can be conveniently installed and detached, and batteries with different lengths can be mounted in an adaptive manner.

Referring to fig. 2 and 3, according to some embodiments of the present application, each mounting beam 22 is provided with a plurality of mounting connectors 221, and the plurality of mounting connectors 221 are spaced apart for connection with the sides of the battery 200.

Illustratively, the mounting connection member 221 is a bolt or a rivet, and a plurality of mounting holes are formed on both sides of the battery along the second direction, and the mounting connection member 221 is fixedly connected with the mounting holes.

The mounting beam 22 is fixedly connected with the side portion of the battery through a plurality of mounting connectors 221, so that the connection condition between the battery and the frame beam of the frame can be simulated, and the mounting and the dismounting are convenient.

Referring to fig. 2 and 3, according to some embodiments of the present application, each mounting beam 22 is provided with at least one suspension ring 222 on a side facing the force-receiving frame 11.

For example, the number of the hanging rings 222 is plural, and the hanging rings 222 are disposed on the mounting beam 22 at intervals along the first direction.

Each mounting beam 22 is provided with at least one hanging ring 222 towards one side of the stressed frame 11, the hanging rings 222 are used for being connected with hoisting equipment, the hoisting equipment hoists the constraint component 20 after the battery is mounted and the first connecting piece 13 and the second connecting piece 14 arranged on two sides of the stressed frame 11, and therefore the efficiency of connecting the constraint component 20 with the stressed frame 11 is improved.

Referring to fig. 4, according to some embodiments of the present application, the force application assembly 31 includes a connection seat 311, a pressure sensor 312, a force application member 313 and a roller 316 assembly sequentially connected in a direction from the force frame 11 to the fixed beam 21; the connecting seat 311 is connected to a side of the force-bearing frame 11 facing the constraint component 20, the roller 316 component is connected to a side of the fixed beam 21 facing the force-bearing frame 11, and the force-applying component 313 is used for driving the roller 316 component to apply pressure to the fixed beam 21.

Illustratively, the connection mount 311 is welded or bolted to the force-receiving frame 11. The connecting seat 311 is provided with a connecting surface on one side facing the stress frame 11, and a plurality of reinforcing ribs 3111 are provided on one side of the connecting surface, and the plurality of reinforcing ribs 3111 are fixedly connected with the side part of the stress frame 11.

Illustratively, the force application member 313 is a jack or a cylinder or cylinder, the piston rod of which may extend or retract.

The pressure sensor 312 and the force application member 313 may be connected to an industrial personal computer, so as to control the force application member 313 to apply pressure through the industrial personal computer, and obtain the pressure value monitored by the pressure sensor 312 in real time.

The connecting seat 311 is connected with one side of the bottom of the stressed frame 11, the force application part 313 can extend or retract, so that the roller 316 assembly can be driven to move towards the direction of the fixed beam 21 to apply pressure to the fixed beam 21, the pressure applied to the fixed beam 21 by the force application part 313 through the roller 316 assembly can be obtained in real time through the pressure sensor 312 under the action of reaction force, and the torsional rigidity of the battery can be conveniently tested by reading the numerical value of the pressure sensor 312.

Referring to fig. 4, the roller assembly includes a fixed frame 314, a roller 315, and a roller 316 according to some embodiments of the present application. Wherein, the fixing frame 314 is arranged at one side of the force application member 313 away from the pressure sensor 312 and is connected with the other side; the roller 315 is connected with one side of the fixing frame 314 away from the force application member 313; the roller 316 is sleeved on the roller and is suitable for rotating relative to the roller 315, and the roller 316 is in contact connection with one side of the fixed beam 21 facing the stressed frame 11.

Illustratively, two lugs arranged at intervals are arranged on one side of the fixing frame 314 away from the force application member 313, pin holes are arranged on the two lugs, the rolling shaft 315 penetrates through the two pin shafts 132, and two ends of the rolling shaft are subjected to limit stop through limit flanges.

The fixing frame 314 is connected with the force application member 313, and when the power output shaft of the force application member 313 extends or retracts, the fixing frame 314 can be driven to extend or retract so as to drive the roller 316 arranged on the roller 315 to push down or move up for retraction, so that pressure can be applied to the fixed beam 21 when the roller 316 pushes down, and after the test is completed, the fixing frame is retracted so as to stop applying pressure to the fixed beam 21.

Referring to fig. 1-3, according to some embodiments of the present application, the fixed beam 21 is provided with a level 40 toward the force-receiving frame 11.

Illustratively, the level 40 is a digital display level 40, and the digital display level 40 has a digital display function.

By arranging the level meter 40 on the side of the fixed beam 21 facing the stressed frame 11, the levelness of the fixed beam 21 is displayed through the level meter 40, so that the test is conveniently performed under the condition that the fixed beam 21 is horizontal, and the deformation of the fixed beam 21 due to stress is conveniently displayed in real time when pressure is applied to the fixed beam 21.

Referring to fig. 1 to 3, according to some embodiments of the present application, the fixing beam 21 is provided with a first connection hole 211, and each of the first and second connection members 13 and 14 includes a mounting block 131 and a pin 132. The mounting block 131 is fixedly connected with the stressed frame 11 and is arranged corresponding to the fixed beam 21, one side of the mounting block 131 facing the fixed beam 21 is provided with a mounting groove 1311, and two side walls of the mounting groove 1311 are respectively provided with a second connecting hole and a third connecting hole; the fixing beam 21 is partially installed in the installation groove 1311, and the pin 132 is penetrated through the second, first and third connection holes 211 and 211, so that the fixing beam 21 is rotatably connected with the mounting block 131.

Illustratively, mounting block 131 is a trapezoidal block or a rectangular block.

The mounting piece is fixedly arranged on the stress frame 11, and because the fixing beam 21 is rotationally connected with the mounting block 131 through the pin shaft 132, when the force application components 31 apply pressure to the fixing beam 21, the two force application components 31 which are positioned on the diagonal line apply pressure to the two fixing beams 21, and the two fixing beams 21 can drive the battery 200 to twist, so that the torsion test of the battery 200 can be realized.

Referring to fig. 2, according to some embodiments of the present application, the stress frame 11 includes a first frame 111 and a second frame 112 stacked in a vertical direction, and the second frame 112 is located between the first frame 111 and the pressure loading mechanism and is connected to the first frame 111 and the pressure loading mechanism, respectively.

Illustratively, the first stressed frame 11 is a frame body formed by surrounding four profiles, and two diagonally supported profiles are arranged in the frame body in a crossing manner.

The second stressed frame 11 is formed by only four profiles.

Because the stress frame 11 can receive the reverse acting force of the force application component 31, the stress frame 11 is set to be the first frame body 111 and the second frame body 112 which are stacked, so that the overall compressive strength of the stress frame 11 can be increased, the risk of damage to the stress frame 11 can be reduced, and the stability of the product in torsional rigidity test of the battery can be improved.

According to some embodiments of the application, the application further provides a battery test line comprising: a conveyor and a battery torsional stiffness test fixture 100 as in any of the embodiments of the first aspect. The conveying device is used for conveying the battery, and the battery torsional rigidity testing tool 100 is used for testing torsional rigidity of the battery.

The battery testing line provided by the embodiment of the present application includes the battery torsional rigidity testing tool 100 described in any one of the above embodiments, so that the battery testing line has the technical effects of any one of the above embodiments, and will not be described herein.

According to some embodiments of the present application, referring to fig. 1-4, the present application provides a battery torsional stiffness test fixture 100 comprising a frame assembly, a restraint assembly 20, a level 40, and two sets of pressure loading mechanisms. The frame assembly comprises a stress frame 11 and a plurality of supporting pieces 12 arranged on the periphery side of the stress frame 11, and a first connecting piece 13 and a second connecting piece 14 are respectively arranged on two sides of the stress frame 11 along a first direction; the restraint assembly 20 is arranged below the frame assembly and comprises two fixed beams 21 and two mounting beams 22 connected with the two fixed beams 21, the two fixed beams 21 are arranged at intervals along a first direction and are respectively connected with the first connecting piece 13 and the second connecting piece 14 in a rotating way, the two mounting beams 22 are respectively provided with mounting connecting pieces 221 used for mounting two sides of the battery 200, the mounting beams 22 are arranged at intervals along a second direction perpendicular to the first direction, and two ends of each mounting beam 22 are movably connected with the two fixed beams 21; the two groups of pressure loading mechanisms are arranged on two sides of the stressed frame 11 along the first direction and towards the constraint assembly 20, each group of pressure loading mechanisms comprises two force application assemblies 31 which are arranged at intervals along the second direction, the force application assemblies 31 are provided with pressure sensors 312, and the force application assemblies 31 are used for applying pressure to the fixed beams 21. Through the technical scheme, the mounting condition of the battery 200 on the frame can be simulated, and the torsional rigidity of the battery can be tested relatively accurately and rapidly.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present application, and not for limiting the same; although the application has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the application, and are intended to be included within the scope of the appended claims and description. In particular, the technical features mentioned in the respective embodiments may be combined in any manner as long as there is no structural conflict. The present application is not limited to the specific embodiments disclosed herein, but encompasses all technical solutions falling within the scope of the claims.

Claims (12)

1. A battery torsional rigidity test fixture, its characterized in that includes:

The frame assembly comprises a stress frame and a plurality of supporting pieces arranged on the periphery of the stress frame, wherein a first connecting piece and a second connecting piece are respectively arranged on two sides of the stress frame along a first direction;

The restraining assembly is arranged below the frame assembly and comprises two fixed beams and two mounting beams, the two fixed beams are arranged at intervals along the first direction and are respectively connected with the first connecting piece and the second connecting piece in a rotating way, the two mounting beams are used for mounting two sides of a battery and are arranged at intervals along a second direction perpendicular to the first direction, and two ends of each mounting beam are respectively connected with the two fixed beams;

The two groups of pressure loading mechanisms are arranged on two sides of the stressed frame along the first direction and towards the constraint assembly, each group of pressure loading mechanisms comprises two force application assemblies arranged at intervals along the second direction, each force application assembly is provided with a pressure sensor, and each force application assembly is used for applying pressure to the constraint assembly.

2. The battery torsional rigidity testing tool according to claim 1, wherein two ends of the mounting beam are movably connected with the two fixed beams respectively.

3. The battery torsional rigidity testing tool according to claim 2, wherein a first connection adjusting piece and a second connection adjusting piece are respectively arranged at two ends of the mounting beam, the first connection adjusting piece is sleeved on one fixing beam, the second connection adjusting piece is sleeved on the other fixing beam, and the first connection adjusting piece and the second connection adjusting piece are respectively suitable for reciprocating along the two fixing beams.

4. The battery torsional rigidity testing tool according to claim 3, wherein a first inserting groove is formed in one side, facing the mounting beam, of the first connection adjusting piece, and one end of the mounting beam is inserted into the first inserting groove and is connected with the first connection adjusting piece through a first fastener;

and/or, a second inserting groove is formed in one side, facing the mounting beam, of the second connection adjusting piece, and the other end of the mounting beam is inserted into the second inserting groove and is connected with the second connection adjusting piece through a second fastening piece.

5. A battery torsional rigidity testing fixture according to any of claims 1-4, wherein each mounting beam is provided with at least one mounting connection for connection with a side of the battery.

6. The battery torsional rigidity testing tool according to any one of claims 1-4, wherein at least one hanging ring is arranged on one side of each mounting beam, which faces the stressed frame.

7. The battery torsional rigidity testing tool according to any one of claims 1-4, wherein the force application assembly comprises a connecting seat, the pressure sensor, a force application member and a roller assembly which are sequentially connected from the force-bearing frame to the fixed beam;

The connecting seat is connected with one side of the stress frame, which faces the constraint assembly, the roller assembly is in contact connection with one side of the fixed beam, which faces the stress frame, and the force application piece is used for driving the roller assembly to apply pressure to the fixed beam.

8. The battery torsional stiffness testing tool of claim 7, wherein the roller assembly comprises:

The fixed frame is connected with the force application piece;

The rolling shaft is connected with one side of the fixing frame, which is away from the force application piece;

The roller is sleeved on the roller and is suitable for rotating relative to the roller, and the roller is in contact connection with one side, facing the stressed frame, of the fixed beam.

9. The battery torsional rigidity testing tool according to any one of claims 1-4, wherein a level is provided on a side of the fixed beam facing the force-receiving frame.

10. The battery torsional rigidity testing tool according to any one of claims 1-4, wherein the fixing beam is provided with a first connecting hole, and the first connecting piece and the second connecting piece each comprise:

The mounting block is fixedly connected with the stress frame and is arranged corresponding to the fixed beam, one side of the mounting block, which faces the fixed beam, is provided with a mounting groove, and two side walls of the mounting groove are respectively provided with a second connecting hole and a third connecting hole;

The pin shaft is arranged in the mounting groove, and the pin shaft sequentially penetrates through the second connecting hole, the first connecting hole and the third connecting hole, so that the fixing beam is rotationally connected with the mounting block.

11. The battery torsional rigidity testing tool according to any one of claims 1-4, wherein the stress frame comprises a first frame body and a second frame body which are stacked in a vertical direction, and the second frame body is located between the first frame body and the pressure loading mechanism and is connected with the first frame body and the pressure loading mechanism respectively.

12. A battery test line, comprising:

The transport device is used for transporting the battery; and

The battery torsional rigidity testing tool according to any one of claims 1-11, for use in torsional rigidity testing of the battery.