CN216208151U - Tool for testing strength of module frame - Google Patents

Abstract

The application discloses frock of test module frame intensity. The frock of test module frame intensity includes: the simulation block is provided with the appearance of the battery cell to be simulated, and the first surface is an expansion surface; the driving end of the linear driving device is provided with a pressure sensor which is pressed against a second surface of the contour block, wherein the second surface is opposite to the first surface; the tool for testing the strength of the module frame is used for being placed in the module frame to be tested, the first surface of the profiling block abuts against one side end plate, and one end, departing from the driving end, of the linear driving device abuts against the other side end plate. The electric core inflation in the simulation reality that this application embodiment's test module frame intensity's frock can be quick extrudees the module frame, and then quick test obtains the intensity of module frame.

Description

Tooling for testing the strength of the module frame

technical field

The application relates to the technical field of battery testing, in particular to a tooling for testing the strength of a module frame.

Background technique

The power battery is composed of a plurality of battery modules, and the battery module is composed of a module frame and a plurality of cells housed in the module frame.

In the prior art, since the battery cell expands during charging, and the force generated by the expansion acts on the module frame, the module frame needs to have sufficient strength to ensure that the expansion force of the battery cell will not be affected. Breaks at joints or damage to end and side panels occur. Therefore, in order to test the strength of the module frame, technicians need to install the battery cells in the module frame, and then perform reciprocating charging and discharging work, and observe whether and when the module frame is damaged, so as to obtain the strength of the module frame.

However, the above-mentioned testing method takes a lot of time, the testing efficiency is low, and the cost is high, so the above-mentioned technical problems need to be solved as soon as possible.

Utility model content

In view of the above problems, the present application provides a tool for testing the strength of a module frame, which can solve the problems of time-consuming and expensive testing of the strength of the module frame using the prior art.

The application provides a tool for testing the strength of a module frame, including:

The profiling block has the shape of the cell to be simulated, and the first surface is an expansion surface;

Linear drive device, the drive end is provided with a pressure sensor, and the pressure sensor is pressed against the second surface of the profiling block that is opposite to the first surface;

The tooling for testing the strength of the module frame is placed in the module frame to be tested, the first surface of the profiling block abuts on one end plate, and the end of the linear drive device away from the driving end abuts on the other end plate superior.

In the technical solution of the embodiment of the present application, the actual expansion state of the battery cell can be simulated by setting the profiling block, which is consistent with the actual expansion of the battery cell, and the expansion surface of the profiling block is pressed against a side of the module frame through the linear drive device. On the side end plate, when the linear drive device applies driving force to the profiling block, it can simulate the extrusion of the surface of the cell expansion to the end face of the module frame in the actual working condition, and the profiling block can be squeezed by fast reciprocating driving. The frame of the pressing module can realize rapid simulation test and improve the test efficiency; the pressure sensor can detect the pressing force acting on the end plate of the module frame during the test, and the staff can control the output of the linear drive device based on the obtained pressure to adjust the output suitable for the simulation test. driving force, thereby improving the accuracy of the test.

In some embodiments, the first surface of the contoured block has an expanded portion that protrudes a predetermined distance.

In this embodiment, by simulating the actual expansion state of the battery cell on the first surface of the profiling block, the extrusion of the module frame by the expansion of the battery cell can be truly simulated when the end plate of the module frame is abutted against.

In some embodiments, the operating portion includes:

The area of the expanded portion of the first surface of the contoured block is 70-90% of the area of the first surface.

The profiling block in the embodiment of the present application limits the area of the expanded portion of the first surface, which can more realistically simulate the expanded state of one side of the cell.

In some embodiments, the predetermined distance by which the first surface of the profiling block protrudes is equal to 5-10% of the length of the edge in the thickness direction of the profiling block. Similarly, by defining the protruding distance of the expansion surface of the profiling block, the expansion state of the surface of one side of the cell can be simulated more realistically.

In some embodiments, the tooling for testing the strength of the module frame further includes:

The first clamping plate is located between the pressure sensor and the profiling block, and the surface shape and area of the first clamping plate in contact with the second surface of the profiling block are the same.

The arrangement of the first clamping plate in the embodiment of the present application can evenly act on the profiling block by the driving force output by the linear drive device, so as to ensure that the simulated extrusion of the module frame is closer to reality, that is, to improve the accuracy of the test.

In some embodiments, the tooling for testing the strength of the module frame further includes:

The second clamping plate is located between the pressure sensor and the driving end of the linear drive device.

The arrangement of the second clamping plate in the embodiment of the present application enables the driving force of the linear drive device to act on the pressure sensor evenly, and there is no need to worry about test deviations caused by the pressure sensor not being aligned with the drive axis of the linear drive device.

In some embodiments, the tooling for testing the strength of the module frame further includes:

In the guide sliding part, the first end is connected with the first clamping plate, the second end is connected with the linear driving device, and the guiding sliding part passes through the second clamping plate and is slidably connected with the second clamping plate.

In this design, the first clamping plate, the pressure sensor and the second clamping plate can move smoothly under the driving of the linear driving device, and move together in the same direction, so that the driving force can accurately act on the profiling block.

In some embodiments, the guide sliding portion is a sliding rod, and the number of sliding rods is at least two, and the sliding rods are spaced around the outer circumference of the pressure sensor and are respectively connected with the positions of the first clamping plate near the edge.

In such a design, the guide effect of the sliding rod is good, the space occupation is reduced, and the connection with the first clamp plate and the second clamp plate is convenient at the same time.

In some embodiments, the linear drive device further includes:

The installation part is arranged outside the main body of the linear drive device, and exposes the driving end of the linear drive device; wherein, the second end of the guide sliding part is connected with the installation part.

The arrangement of the mounting portion can facilitate the connection between the guide sliding portion and the linear drive device, and avoid damage to the linear drive device caused by the arrangement of mounting holes, mounting grooves and other structures on the linear drive device.

In some embodiments, the mounting part includes a first mounting plate and a second mounting plate oppositely disposed on two sides of the main body of the linear drive device, the first mounting plate and the second mounting plate are respectively detachably connected to at least one sliding rod or Slide to connect.

By setting the mounting part as a mounting plate structure, it can be directly and quickly connected to both sides of the main body of the linear drive device, and it is convenient to set the structure of connecting sliding rods on the first mounting plate and the second mounting plate.

In some embodiments, both the first mounting plate and the second mounting plate are provided with stepped connecting through holes along the moving direction of the driving end of the linear drive device, and one end of the sliding rod is stepped and is slidably connected with the connecting through holes.

By arranging stepped connecting through holes on the first mounting plate and the second mounting plate, the connection and disassembly with the sliding rod can be facilitated, and the connecting through holes are arranged along the moving direction of the driving end of the linear drive device, which can ensure the smoothness of the sliding rod. Extend the setting direction, thereby ensuring that the driving force of the linear drive device can be transmitted through the first clamping plate and the second clamping plate along the driving direction and finally act on the profiling block, ensuring the precise application of the driving force.

In some embodiments, the tooling for testing the strength of the module frame further includes:

The control device is respectively connected with the linear drive device and the pressure sensor, and is used for controlling the work of the linear drive device and for receiving the pressure signal transmitted by the pressure sensor.

Such a design can facilitate the control of the linear drive device when testing the strength of the module frame, and facilitate the acquisition of pressure data.

The above description is only an overview of the technical solution of the present application. In order to be able to understand the technical means of the present application more clearly, it can be implemented according to the content of the description, and in order to make the above-mentioned and other purposes, features and advantages of the present application more obvious and easy to understand , and the specific embodiments of the present application are listed below.

Description of 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 for purposes of illustrating preferred embodiments only and are not to be considered limiting of the application. Also, the same components are denoted by the same reference numerals throughout the drawings. In the attached image:

1 is a first-view structural schematic diagram of a profiling block of a tooling for testing the strength of a module frame according to some embodiments of the present application;

FIG. 2 is a schematic structural diagram of a second perspective of a profiling block of a tooling for testing the strength of a module frame according to some embodiments of the present application;

3 is a schematic structural diagram of a tool for testing the strength of a module frame according to some embodiments of the present application installed in the module frame;

4 is a schematic structural diagram of a tooling for testing the strength of a module frame according to some embodiments of the present application without a profiling block;

5 is a top view of a tool for testing the strength of a module frame according to some embodiments of the present application installed in the module frame;

FIG. 6 is a cross-sectional view taken along line A-A of FIG. 5 .

The reference numerals in the specific embodiment are as follows:

Profile block 1, first surface 11, expansion part 111, second surface 12;

Linear drive device 2, pressure sensor 3;

Module frame 4, end plate 41;

The first splint 5, the second splint 6, the guide sliding part 7;

The mounting portion 8 , the first mounting plate 81 , the second mounting plate 82 , and the connecting through holes 83 .

Detailed ways

The embodiments of the technical solutions of the present application will be described in detail below with reference to the accompanying drawings. The following examples are only used to illustrate the technical solutions of the present application more clearly, and are therefore only used as examples, and cannot be used to limit the protection scope of the present application.

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

In the description of the embodiments of the present application, the technical terms "first", "second", etc. are only used to distinguish different objects, and should not be understood as indicating or implying relative importance or implying the number, specificity and quantity of indicated technical features. Sequential or primary and secondary relationship. In the description of the embodiments of the present application, "plurality" means two or more, unless otherwise expressly and specifically defined.

Reference herein to an "embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the present application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor a separate or alternative embodiment that is mutually exclusive of 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.

In the description of the embodiments of the present application, the term "and/or" is only an association relationship for describing associated objects, indicating that there may be three relationships, such as A and/or B, which may indicate that A exists alone, and A exists at the same time and B, there are three cases of B alone. In addition, the character "/" in this document generally indicates that the related objects are an "or" relationship.

In the description of the embodiments of the present application, the term "plurality" refers to two or more (including two), similarly, "multiple groups" refers to more than two groups (including two groups), and "multiple sheets" refers to is more than two pieces (including two pieces).

In the description of the embodiments of the present application, the technical terms "center", "longitudinal", "horizontal", "length", "width", "thickness", "top", "bottom", "front", "rear", "left", "right", "vertical" "Horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on those shown in the accompanying drawings The orientation or positional relationship is only for the convenience of describing the embodiments of the present application and simplifying the description, rather than indicating or implying that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as implementing the present application. example limitations.

In the description of the embodiments of the present application, unless otherwise expressly specified and limited, the technical terms "installation", "connection", "connection", "fixed" and other terms should be understood in a broad sense, for example, it may be a fixed connection or a fixed connection. The connection can be disassembled or integrated; it can also 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 communication between the two elements or the interaction relationship between the two elements. Those of ordinary skill in the art can understand the specific meanings of the above terms in the embodiments of the present application according to specific situations.

At present, with the development of green energy, batteries are used in many fields, such as energy storage power systems such as hydropower, thermal power, wind power, and solar power plants, and are also widely used in electric bicycles, electric motorcycles, electric vehicles, and electric ships. and other electric vehicles, as well as military equipment and aerospace and other fields. Moreover, with the continuous expansion of the battery application field, the market demand is also constantly expanding, and the subsequent technical investment will also increase significantly.

The inventors have noticed that for lithium ion batteries, due to their physical and chemical properties, they may expand during use due to structural changes of electrode active materials and side reactions of electrolytes. The battery module houses multiple cells side by side in the module frame, and the expansion of the cells in the battery module will squeeze the module frame, resulting in cracks at the connection of the module frame, end plates or Damage to the side panels will eventually affect the overall practical safety of the battery. Therefore, it is necessary to test the strength of the module frame to obtain a module frame that meets the practical strength requirements. However, the current testing method is to install the battery cell in the module frame, then reciprocally charge and discharge the battery cell, and then observe the state of the module frame. This testing method takes a lot of time and costs a lot.

In order to solve the above problems, the inventors have found that a linear drive device can be used as a drive, and then a profiling block can be used to simulate the expanded cell, and then a tooling that simulates the expansion of the cell to extrude the frame of the module is formed, and then the linear drive device can be used. The rapid reciprocating driving of the profiling block to extrude the module frame can simulate the extrusion of the expanding cell to the module frame, and can realize rapid simulation and save the time for testing the module frame. In addition, a pressure sensor can be set to detect the actual pressing force acting on the module frame to ensure the accuracy of the test.

The tooling for testing the strength of the frame of the module disclosed in the embodiment of the present application is used in battery enterprises that produce batteries in batches, and can be used in enterprises that do not produce batteries in batches, and can also be used in enterprises that produce other products. For the extrusion strength test of the housing and other accommodating devices, the tooling or the testing equipment can be designed with reference to the tooling for testing the strength of the module frame in the embodiment of the present application.

According to some embodiments of the present application, the present application provides a tool for testing the strength of a module frame, comprising: a profiling block as shown in FIG. 1 and FIG. 2 ; the profiling block 1 has the shape of a cell to be simulated, and The first surface 11 is the expansion surface; as shown in Figure 3, the linear drive device 2, the drive end is provided with a pressure sensor 3, the pressure sensor 3 is pressed against the second surface 12 of the profiling block 1 that is opposite to the first surface 11, Among them, the tooling for testing the strength of the module frame is placed in the module frame 4 to be tested, the first surface 11 of the profiling block 1 abuts on one side end plate 41, and the end of the linear drive device 2 away from the driving end abuts on the on the other side end plate 41 .

Specifically, the profiling block 1 is a structure for simulating the expanded cell, which can simulate cells with various shapes (including shapes and sizes), and the profiling block 1 is driven by the linear drive device 2 The end plate 41 of the module frame 4 is extruded with one side surface, so only the first surface 11 of the profiling block 1, that is, the surface used for contacting the end plate 41 of the module frame 4, can be set as the expansion surface, to simulate the surface shape of the cell after expansion. The material of the profiling block 1 is preferably a metal material with a certain hardness, such as steel, titanium alloy, etc., so as to avoid deformation during extrusion, which will affect the strength test of the module frame 4 .

The linear drive device 2 is a device that can output driving force in a linear direction, such as a servo motor, hydraulic cylinder, air cylinder or electric cylinder, etc. It should be noted that when the linear drive device 2 is the above-mentioned "servo motor, hydraulic cylinder, air cylinder or When one of the "electric cylinder", it can be adapted to connect the controller, hydraulic system or pneumatic system to realize the control of the linear drive device 2. Wherein, the above-mentioned related technologies of the controller, the hydraulic system or the pneumatic system are the technologies mastered by those skilled in the art, and will not be repeated here.

The pressure sensor 3 can be a spoke-type pressure sensor 3, which is arranged between the profiling block 1 and the driving end of the linear drive device 2, and is used to detect the driving force of the linear drive device 2 acting on the profiling block 1, that is, to obtain a simulation. The pressing force of the shape block 1 on the end plate 41 of the module frame 4 enables the staff to adjust the output of the linear drive device 2 based on the obtained pressure value.

It should be noted that when using the tooling for testing the strength of the module frame of the present application, the tooling for testing the strength of the module frame needs to be placed in the module frame 4 as a whole, and adjusted to the initial state, that is, the first position of the profiling block 1. The surface 11 abuts on one end plate 41 of the module frame 4 , and the end of the linear drive device 2 away from the driving end abuts on the other end plate 41 . In this way, when the driving end of the linear drive device 2 protrudes to the side of the profiling block 1, the driving force can act on the profiling block 1 through the pressure sensor 3, and finally the driving force can pass through the first surface 11 of the profiling block 1. Acting on one side end plate 41 of the module frame 4 to simulate the pressure of the expanded battery cells on the module frame 4, and read the applied pressure through the pressure sensor 3, and adjust the output of the linear drive device 2. The pressure is adjusted to a size suitable for the simulation test, and the module frame 4 is squeezed by controlling the linear drive device 2 to output a reciprocating force until the module frame 4 is broken at the connection, the end plate 41 is damaged, and the side plate is damaged, Further, the fatigue strength of the module frame 4 is measured, as well as the connection strength of the joint, the failure strength of the end plate 41, and the failure strength of the side plate.

In the technical solution of the embodiment of the present application, the profiling block 1 can be manufactured according to the expanded shapes of different cells, and then simulate the extrusion of a variety of different cells on the module frame 4; the profiling is driven by the linear drive device 2 Block 1 extrudes the module frame 4 back and forth, which can quickly simulate the state of reciprocating charge and discharge expansion of the battery cell, improve the test efficiency and save the test cost; and the pressure sensor 3 can detect the effect on the end plate of the module frame 4 during the test. 41, and based on the obtained pressure control, the linear drive device 2 is adjusted to output a driving force suitable for the simulation test, thereby effectively improving the test accuracy.

As shown in FIGS. 1 and 2 , according to some embodiments of the present application, optionally, the first surface 11 of the profiling block 1 has an expanded portion protruding by a predetermined distance.

Specifically, since the state of the expanded battery cell is that the side surface protrudes outward, and the center protrudes continuously to the surrounding, so in order to better simulate the shape of the expanded battery core, the first The surface 11 has the above-mentioned raised bulge.

In this embodiment, by setting the side of the profiling block 1 that abuts against the end plate 41 of the module frame 4 in the above-mentioned expanded state, it can be completely consistent with the actual expansion state of the cell, and thus can better simulate The contact state and extrusion state of the expansion surface and the end plate 41 of the module frame 4 when the cell expands.

As shown in FIGS. 1 and 2 , according to some embodiments of the present application, optionally, the area of the expanded portion of the first surface 11 of the profiling block 1 accounts for 70-90% of the area of the first surface 11 ; The predetermined distance by which the first surface 11 of the profiling block 1 protrudes is equal to 5-10% of the length of the edge in the thickness direction of the profiling block 1 .

Specifically, since the battery cell does not expand on the entire side during charging and expansion, it expands continuously from the center of the side to the surrounding area, and the area of the expanded portion occupies 70-90% of the side area, so the profiling block 1 of the present application corresponds to The expanded portion of the first surface 11 is also set to account for 70-90% of the area of the first surface 11, so as to accurately simulate the expansion state of the actual cell. In addition, in practice, the protruding distance of the expanded portion on the side of the cell, that is, the size of the expansion is usually 5-10% of the thickness of the entire cell. Therefore, in order to accurately simulate the actual state, this application uses the first surface 11 of the profiling block 1. The protruding distance of the expansion part is also set correspondingly to 5-10% of the length of the edge in the thickness direction of the profiling block 1, that is, corresponding to 5-10% of the actual thickness of the cell.

By setting the expansion part of the first surface 11 of the profiling block 1 in the embodiment of the present application according to the above parameters, the expansion state of various types of cells can be simulated with high accuracy, and then the expansion state of the profiling block 1 can be simulated with high accuracy. When the first surface 11 abuts against the end plate 41 of the module frame 4 , it can simulate the abutment of the actual cell expansion against the end plate 41 , so that the final test result is wirelessly close to or equal to the actual situation.

As shown in FIGS. 3 to 5 , the tooling for testing the strength of the module frame according to the embodiment of the present application further includes: a first clamping plate 5 located between the pressure sensor 3 and the profiling block 1 , and the first clamping plate 5 is connected to the profiling block 1 . The shapes and areas of the surfaces contacted by the second surface 12 of the block 1 are the same.

Specifically, the first clamp plate 5 is a flat plate body, preferably a plate body with the same shape and size as the cell, so that the surface shape and area of the first clamp plate 5 in contact with the second surface 12 of the profiling block 1 are the same , and the first clamping plate 5 needs to have a certain strength to ensure that the first clamping plate 5 will not be deformed when the driving pressure sensor 3 of the linear drive device 2 squeezes the first clamping plate 5 . The material of the first clamping plate 5 may be steel.

The setting of the first clamping plate 5 in the embodiment of the present application can make the driving force output by the linear drive device 2 evenly act on the profiling block 1, so as to ensure that the simulation of the extrusion of the module frame 4 is closer to reality, that is, to improve the accuracy of the test. sex.

As shown in FIGS. 3 to 5 , according to some embodiments of the present application, the tooling for testing the strength of the module frame further includes: a second clamping plate 6 located between the pressure sensor 3 and the driving end of the linear drive device 2 .

Specifically, the shape and size of the second clamping plate 6 can be the same as the first clamping plate 5, and it needs to have a flat surface. The second clamping plate 6 also needs to have a certain strength to ensure that the second clamping plate 6 is driven by the linear drive device 2. When the pressure sensor 3 is pressed, the second clamping plate 6 will not be deformed. The material of the second clamping plate 6 can be steel.

The arrangement of the second clamping plate 6 in the embodiment of the present application enables the driving force of the linear drive device 2 to act on the pressure sensor 3 evenly, and there is no need to worry about test deviations caused by the pressure sensor 3 not being aligned with the drive axis of the linear drive device 2 . That is, the uniformity of the transmission of the driving force output by the linear drive device 2 can be improved by the arrangement of the first clamping plate 5 and the second clamping plate 6, so as to ensure that the driving force acts evenly on the profiling block 1, so as to realize accurate analog cell pairing. Extrusion of module frame 4.

As shown in FIG. 3 to FIG. 5 , according to some embodiments of the present application, the tooling for testing the strength of the module frame further includes: a guide sliding part 7 , the first end of which is connected to the first clamping plate 5 , and the second end is connected to the linear drive device 2 connection, the guide sliding part 7 passes through the second clamping plate 6 and is slidably connected with the second clamping plate 6 .

Specifically, the first end of the guide sliding portion 7 can be detachably connected to the first clamping plate 5 , for example, by screw connection or snap connection, and the second end of the guide sliding portion 7 and the linear drive device 2 are preferably detachable. Connections, such as threaded connections or snap-on connections.

In the design of the embodiment of the present application, through the setting of the guide sliding portion 7, the first clamping plate 5, the pressure sensor 3 and the second clamping plate 6 can move smoothly under the driving of the linear driving device 2, and move together in the same direction, and further Accurately act on the profiling block 1 with the driving force.

As shown in FIG. 3 to FIG. 5 , further, the guide sliding part 7 may be a structure such as a sliding rod, a guide sliding plate, a sliding track, etc. In the embodiment of the present application, the sliding guide part 7 is preferably set as a sliding rod, and the number of sliding rods is at least The number of sliding bars is two, and the sliding bars are spaced around the outer circumference of the pressure sensor 3 and are respectively connected with the position of the first clamping plate 5 near the edge. Symmetrically distributed on both sides of the linear drive device 2, the end of the sliding rod and the first clamping plate 5 can be threadedly connected, that is, a threaded hole is provided above the first clamping plate 5, and then the end of the sliding rod can be threadedly connected by setting a thread .

In the design of the embodiment of the present application, the sliding rod has a good guiding effect, reduces the occupation of space, and is convenient to connect with the first clamp plate 5 and the second clamp plate 6 at the same time.

As shown in FIGS. 3 to 5 , according to some embodiments of the present application, optionally, the linear drive device 2 further includes:

The mounting part 8 is arranged outside the main body of the linear drive device 2 and exposes the driving end of the linear drive device 2 ; wherein the second end of the guide sliding part 7 is connected with the mounting part 8 .

Specifically, the mounting portion 8 may be a structure such as a casing, a guard plate, a mounting plate, a mounting seat, etc. connected to the outside of the linear drive device 2 , but the free expansion and contraction of the driving end of the linear drive device 2 needs to be ensured, that is, the linear drive device 2 needs to be guaranteed. The driver side is exposed.

The installation of the installation portion 8 can facilitate the connection between the guide portion 7 and the linear drive device 2 , and avoid damage to the linear drive device 2 caused by the installation holes, installation grooves and other structures on the linear drive device 2 .

As shown in FIG. 3 to FIG. 5 , according to some embodiments of the present application, further, the preferred structure of the mounting portion 8 is as follows: including a first mounting plate 81 and a second mounting plate 81 and a second mounting plate that are oppositely arranged on both sides of the main body of the linear drive device 2 The plate 82 , the first mounting plate 81 and the second mounting plate 82 are respectively detachably connected or slidably connected with at least one sliding rod.

Specifically, preferably at least two sliding rods are arranged on both sides of the linear drive device 2. In the embodiment of the present application, two of the four sliding rods are arranged on both sides of the linear drive device 2, respectively, and the two sliding rods are respectively connected with the first and second sliding rods. A mounting plate 81 and a second mounting plate 82 are connected, and the first mounting plate 81 and the second mounting plate 82 can be bolted or welded with the linear drive device 2 . The connection between the sliding rod and the first mounting plate 81 and the second mounting plate 82 may be threaded connection, for example, threaded holes are respectively provided on the first mounting plate 81 and the second mounting plate 82, and then the end of the sliding rod is provided Thread to realize threaded connection; the connection between the sliding rod and the first mounting plate 81 and the second mounting plate 82 can also be a sliding connection, for example, through holes are respectively provided on the first mounting plate 81 and the second mounting plate 82 , and then insert the sliding rods into the through holes of the first mounting plate 81 and the second mounting plate 82 respectively.

By setting the mounting portion 8 as a mounting plate structure, it can be directly and quickly connected to both sides of the main body of the linear drive device 2, and it is convenient to set the structure for connecting the sliding rods on the first mounting plate 81 and the second mounting plate 82, and at the same time Protection of the linear drive 2 can also be achieved.

As shown in FIG. 5 and FIG. 6 , further, the first mounting plate 81 and the second mounting plate 82 are provided with stepped connecting through holes 83 along the moving direction of the driving end of the linear drive device 2 , and one end of the sliding rod is a stepped connecting hole 83 . and is slidably connected with the connecting through hole 83 .

By arranging stepped connecting through holes 83 on the first mounting plate 81 and the second mounting plate 82, the connection and disassembly with the sliding rod can be facilitated, and the connecting through holes 83 are arranged along the moving direction of the driving end of the linear drive device 2, The extension setting direction of the sliding rod can be ensured, thereby ensuring that the driving force of the linear drive device 2 can be transmitted along the driving direction through the first clamping plate 5 and the second clamping plate 6 and finally act on the profiling block 1 to ensure the precise application of the driving force. .

According to some embodiments of the present application, optionally, the tooling for testing the strength of the module frame further includes:

The control device (not shown in the figure) is connected with the linear drive device 2 and the pressure sensor 3 respectively, and is used for controlling the operation of the linear drive device 2 and for receiving the pressure signal transmitted by the pressure sensor 3 .

Wherein, the control device may be a single-chip microcomputer, a microprocessor or a computer, or the like. The driving amount of the linear driving device 2 can be controlled by the control device, and then the pressing force generated by the driving amount can be obtained through the pressure sensor 3, and then the driving amount of the linear driving device 2 can be adjusted according to the needs of the test to achieve a suitable extrusion The output of the force can finally simulate the extrusion force of the actual cell expansion acting on the end plate 41 of the module frame 4, and then simulate and test to obtain test results that are consistent with the actual situation.

Such a design can facilitate the control of the linear drive device 2 when testing the strength of the module frame 4, and facilitate the acquisition of pressure data.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, but not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: The technical solutions described in the foregoing embodiments can still be modified, or some or all of the technical features thereof can be equivalently replaced; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the technical solutions of the embodiments of the present application. scope, which shall be included in the scope of the claims and description of the present application. In particular, as long as there is no structural conflict, each technical feature mentioned in each embodiment can be combined in any manner. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims (12)

1. a tooling for testing the strength of a module frame, is characterized in that, comprising: The profiling block has the shape of the cell to be simulated, and the first surface is an expansion surface; a linear drive device, a pressure sensor is arranged at the drive end, and the pressure sensor is pressed against the second surface of the profiling block that is opposite to the first surface; Wherein, the tool for testing the strength of the module frame is used to be placed in the module frame to be tested, the first surface of the profiling block abuts on one side end plate, and the end of the linear drive device away from the driving end abuts on the other end plate. 2. The tooling for testing the strength of a module frame as claimed in claim 1, wherein The first surface of the profiling block has an expanded portion protruding a predetermined distance. 3. The tooling for testing the strength of the module frame as claimed in claim 2, wherein The area of the expanded portion of the first surface of the contoured block is 70-90% of the area of the first surface. 4. The tooling for testing the strength of a module frame as claimed in claim 2 or 3, characterized in that, The preset distance protruding from the first surface of the profiling block is equal to 5-10% of the length of the edge in the thickness direction of the profiling block. 5. The tooling for testing the strength of a module frame as claimed in claim 1, further comprising: The first clamping plate is located between the pressure sensor and the profiling block, and the first clamping plate and the second surface of the profiling block have the same surface shape and area. 6. The tooling for testing the strength of a module frame as claimed in claim 5, further comprising: The second clamping plate is located between the pressure sensor and the driving end of the linear drive device. 7. The tooling for testing the strength of a module frame as claimed in claim 6, further comprising: In the guide sliding part, the first end is connected with the first clamping plate, the second end is connected with the linear driving device, and the guiding sliding part passes through the second clamping plate and is slidably connected with the second clamping plate. 8. The tooling for testing the strength of a module frame as claimed in claim 7, characterized in that, The guide sliding part is a sliding rod, and the number of the sliding rods is at least two, and the sliding rods are spaced around the outer circumference of the pressure sensor and are respectively connected with the positions of the first clamping plate close to the edge. 9. The tool for testing the strength of a module frame as claimed in claim 8, wherein the linear drive device comprises: an installation part, the installation part is arranged on the outside of the main body of the linear drive device, and exposes the driving end of the linear drive device; Wherein, the second end of the guide sliding portion is connected with the mounting portion. 10. The tooling for testing the strength of a module frame as claimed in claim 9, wherein The installation part includes a first installation plate and a second installation plate oppositely arranged on both sides of the main body of the linear drive device, and the first installation plate and the second installation plate are respectively connected to at least one of the sliding rods. Detachable connection or sliding connection. 11. The tool for testing the strength of a module frame as claimed in claim 10, wherein, Both the first mounting plate and the second mounting plate are provided with stepped connecting through holes along the moving direction of the driving end of the linear drive device, and one end of the sliding rod is stepped and slides with the connecting through holes connect. 12. The tooling for testing the strength of a module frame as claimed in claim 1, further comprising: The control device is respectively connected with the linear drive device and the pressure sensor, and is used for controlling the operation of the linear drive device and for receiving the pressure signal transmitted by the pressure sensor.

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