CN221124262U - Adhesive bonding performance testing device and adhesive bonding performance testing equipment - Google Patents

Abstract

The utility model discloses an adhesive bonding performance testing device and adhesive bonding performance testing equipment. The first test structure comprises a columnar profiling part and a first clamping part, the outer peripheral surface of the columnar profiling part comprises a first profiling cambered surface and first alignment surfaces connected to two opposite sides of the first profiling cambered surface, the second test structure comprises a main body part and a second clamping part, the main body part is provided with a placing groove, the groove wall of the placing groove comprises a second profiling cambered surface, a second alignment surface and a transition surface, the second profiling cambered surface is spaced from the second alignment surface, the transition surface is connected between the second profiling cambered surface and the adjacent second alignment surface, the first alignment surface is correspondingly abutted to the second alignment surface, and a profiling gap is formed among the first profiling cambered surface, the second profiling cambered surface and the transition surface, so that the consistency of the relative positions of the first clamping part and the second clamping part is high in the process of multiple tests.

Description

Adhesive bonding performance testing device and adhesive bonding performance testing equipment

Technical Field

The utility model relates to the technical field of battery testing, in particular to an adhesive bonding performance testing device and adhesive bonding performance testing equipment.

Background

When designing a battery structure using an adhesive to fix a battery cell, a profiling device is required to form a first test structure profiling one battery cell and a second test structure profiling the battery cell around the one battery cell, so that an actual arrangement structure is profiled by splicing the two test structures, then, the adhesive is injected into a gap of the actual arrangement structure of the battery cell formed by profiling and cured, the first clamping part of the first test structure and the second clamping part of the second test structure are clamped by a pulling mechanism, the first test structure and the second test structure are pulled relatively, and the pulling force required by the relative separation of the first test structure and the second test structure is detected, so that the adhesive property of the adhesive is tested, and then, the proper adhesive is selected based on a test result.

However, when the profiled battery cell is a cylindrical battery cell, the posture of the first test structure is variable along the circumferential direction of the profiled battery cell, so that the consistency of the relative positions of the first clamping part and the second clamping part is poor in the process of multiple tests, and the first clamping part and the second clamping part need to be aligned and clamped by the pulling detection mechanism in a manual mode during each test, which results in complicated test process and low efficiency.

Disclosure of utility model

One object of the present utility model is to: the utility model provides an adhesive bonding performance testing arrangement, first test structure can be put in the second test structure with more stable gesture, and the in-process of many times test, the uniformity of the relative position of first clamping part and second clamping part is high.

Another object of the utility model is: the adhesive bonding performance testing device provided by the technical scheme is used, so that the adhesive bonding performance testing device does not need to align and clamp the first clamping part and the second clamping part in a manual mode in the testing process, the testing process can be simplified, and the testing efficiency is improved.

In order to achieve the purpose, the utility model adopts the following technical scheme:

in a first aspect, an adhesive bonding performance testing device is provided, including:

The first test structure comprises a columnar profiling part and a first clamping part, the outer circumferential surface of the columnar profiling part comprises a first profiling cambered surface and a first alignment surface connected to two opposite sides of the first profiling cambered surface, a sharp angle is formed at the joint of the first alignment surface and the first profiling cambered surface, and the first clamping part is arranged at one end of the columnar profiling part; and

The second test structure comprises a main body part and a second clamping part, wherein an opening is formed in one side of the main body part, the main body part is provided with a placing groove, the placing groove is communicated with the opening, the groove wall surface of the placing groove comprises a second profiling cambered surface, a second alignment surface and a transition surface, the second profiling cambered surface is spaced from the second alignment surface, the transition surface is connected between the second profiling cambered surface and the adjacent second alignment surface, the second clamping part is arranged on the main body part, and the second clamping part and the opening are respectively positioned on two opposite sides of the main body part;

The first test structure is placed in the placing groove, the first alignment surface is correspondingly abutted to the second alignment surface, and a profiling gap is formed between the first profiling cambered surface, the second profiling cambered surface and the transition surface.

As a preferable technical scheme of the adhesive bonding performance testing device, the first clamping part is provided with a first central axis extending along the opposite direction of the opening and the second clamping part, the second clamping part is provided with a second central axis extending along the opposite direction of the opening and the second clamping part, and the first central axis is overlapped with the second central axis.

As a preferable technical scheme of the adhesive bonding performance testing device, the outer peripheral surface of the columnar profiling part comprises a first alignment surface, two opposite sides of the first alignment surface are respectively connected with two opposite sides of the first profiling cambered surface, and the main body part also comprises a second alignment surface; or alternatively

The outer peripheral surface of the columnar profiling part comprises at least a first alignment surface, an included angle is formed between any two of the first alignment surfaces, two of the first alignment surfaces are respectively connected to two opposite sides of the first profiling cambered surface, the groove wall of the placing groove comprises a plurality of second alignment surfaces, and the second alignment surfaces are respectively correspondingly abutted to the first alignment surfaces.

As a preferable technical scheme of the adhesive bonding performance testing device, a first alignment structure is arranged on the first alignment surface, a second alignment structure is arranged on the second alignment surface corresponding to the first alignment structure, one of the first alignment structure and the second alignment structure comprises a raised strip, the other one of the first alignment structure and the second alignment structure comprises a strip-shaped groove, and the first alignment structure and the second alignment structure are connected in a sliding fit manner along a first direction, wherein the first direction is the opposite direction of the opening and the second clamping part.

As a preferred technical scheme of the adhesive bonding performance testing device, two sides of the first alignment structure along the second direction are respectively provided with two third alignment surfaces, two sides of the second alignment structure along the second direction are respectively provided with two fourth alignment surfaces, the two third alignment surfaces are respectively correspondingly abutted to the two fourth alignment surfaces, and the second direction is perpendicular to the first direction and parallel to the first alignment surfaces.

As a preferable technical scheme of the adhesive bonding performance testing device, the first alignment structure is further provided with a first connecting surface connected between the two third alignment surfaces, and the second alignment structure is further provided with a second connecting surface connected between the two fourth alignment surfaces;

The first connecting surface is spaced from the second connecting surface, or the first connecting surface is partially abutted against the second connecting surface.

As a preferable technical scheme of the adhesive bonding performance testing device, the transition surface is correspondingly connected between any two adjacent profiling cambered surfaces, and the axes of the two adjacent profiling cambered surfaces are positioned on the same plane where the corresponding transition surface is positioned.

As a preferable technical scheme of the adhesive bonding performance testing device, on a cross section perpendicular to the opposite direction of the opening and the second clamping part, a central angle of an arc formed by cutting the first profiling cambered surface is theta 1, and a central angle of an arc formed by cutting the second profiling cambered surface is theta 2;

The groove wall surface of the placing groove comprises a second profiling cambered surface, θ1=θ2=180°, or the groove wall surface of the placing groove comprises two second profiling cambered surfaces, θ1=θ2=60°, the first profiling cambered surfaces and the two second profiling cambered surfaces are annularly and uniformly arranged at intervals, a transition surface is connected between the two second profiling cambered surfaces, or the groove wall surface of the placing groove comprises three second profiling cambered surfaces, θ1=θ2=90°, the first profiling cambered surfaces and the three second profiling cambered surfaces are annularly and uniformly arranged at intervals, and the transition surface is connected between any two adjacent second profiling cambered surfaces.

As a preferable technical scheme of the adhesive bonding performance testing device, the columnar profiling part and the main body part are both made of steel materials.

In a second aspect, there is provided an adhesive bonding performance test apparatus comprising:

The adhesive bonding performance test device according to the first aspect; and

The device comprises a pulling detection mechanism, wherein the pulling detection mechanism comprises a driving detection structure, a first chuck and a second chuck, the first chuck and the second chuck are arranged on the driving detection structure at intervals relatively, the first chuck can clamp the first clamping part, the second chuck can clamp the second clamping part, the driving detection structure can drive the first chuck and the second chuck to be far away from each other, and the reaction force borne by the first chuck and/or the second chuck is detected.

The beneficial effects of the utility model are as follows:

The first test structure is provided with the first alignment surface, the second test structure is provided with the second alignment surface, and the first test structure can be placed on the second test structure in a stable posture through the corresponding butt joint of the first alignment surface and the second alignment surface, so that the consistency of the relative positions of the first clamping part and the second clamping part is improved in the process of multiple tests.

In addition, by spacing the second alignment surface from the second profiling cambered surface, the second profiling cambered surface can be prevented from contacting the first profiling cambered surface, and thus a profiling gap can be formed between the first profiling cambered surface, the second profiling cambered surface, and the transition surface.

More specifically, the junction of the first alignment surface and the first profiling cambered surface forms a sharp angle, so that on one hand, the junction of the first alignment surface and the first profiling cambered surface can be clearer, only the first alignment surface is in corresponding abutting connection with the second alignment surface, and the first profiling cambered surface is prevented from being in partial abutting connection with the second alignment surface, so that the stability of the posture of the first test structure when the first test structure is placed on the second test structure is improved, on the other hand, the space from the first profiling cambered surface to the first alignment surface is turned, the difficulty that the adhesive enters between the first alignment surface and the second alignment surface when the adhesive is injected into a profiling gap is improved, and the influence on a test result caused by the fact that the adhesive enters between the first alignment surface and the second alignment surface is reduced.

Drawings

The utility model is described in further detail below with reference to the drawings and examples.

Fig. 1 is a schematic perspective view of an adhesive bonding performance testing device according to an embodiment.

Fig. 2 is a schematic exploded view of the adhesive bonding performance testing apparatus according to the embodiment.

Fig. 3 is a first schematic plan view of the columnar profiling and the main body according to the embodiment.

Fig. 4 is a second schematic plan view of the columnar profiling and the main body according to the embodiment.

Fig. 5 is a third schematic plan view of the columnar profiling and the main body according to the embodiment.

Fig. 6 is a schematic top view of a cell arrangement simulated by the adhesive bonding performance testing device according to the embodiment.

Fig. 7 is a schematic top view of another cell arrangement simulated by the adhesive bonding performance testing device according to the embodiment.

Fig. 8 is a schematic top view of a columnar profile and a main body according to an embodiment.

Fig. 9 is a fifth schematic plan view of the columnar profiling and the main body according to the embodiment.

Fig. 10 is a schematic top view of still another cell arrangement simulated by the adhesive bonding performance testing apparatus according to the embodiment.

Fig. 11 is a sixth schematic plan view of the columnar profiling and the main body according to the embodiment.

Fig. 12 is a seventh schematic plan view of the columnar profiling portion and the main body portion according to the embodiment.

Fig. 13 is a schematic perspective view of an adhesive bonding performance test apparatus according to an embodiment.

In the figure:

1. The adhesive bonding performance testing device; 11. a first test structure; 110. a columnar profiling part; 1101. a first profiling cambered surface; 1102. a first alignment surface; 1103. a first alignment structure; 1103a, a third alignment surface; 1103b, first connection surface; 111. a first clamping part; 111a, a first central axis; 12. a second test structure; 120. a main body portion; 1200. an opening; 1201. a placement groove; 1202. the second profiling cambered surface; 1203. a second alignment surface; 1204. a transition surface; 1205. a second alignment structure; 1205a, a fourth alignment surface; 1205b, a second connection face; 121. a second clamping portion; 121a, a second central axis; 13. profiling gaps;

20. A battery cell; 21. a target area;

3. adhesive bonding performance test equipment; 30. a pulling detection mechanism; 301. driving the detection structure; 302. a first chuck; 303. and a second chuck.

Detailed Description

In order to make the technical problems solved by the present utility model, the technical solutions adopted and the technical effects achieved more clear, the technical solutions of the embodiments of the present utility model will be described in further detail below with reference to the accompanying drawings, and it is obvious that the described embodiments are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to fall within the scope of the utility model.

In the description of the present utility model, unless explicitly stated and limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can 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 present utility model will be understood in specific cases by those of ordinary skill in the art.

In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

As shown in fig. 1 and 2, the present utility model provides an adhesive bonding performance testing device 1, which includes a first testing structure 11 and a second testing structure 12. The first test structure 11 comprises a columnar profiling part 110 and a first clamping part 111, the outer peripheral surface of the columnar profiling part 110 comprises a first profiling cambered surface 1101 and first alignment surfaces 1102 connected to two opposite sides of the first profiling cambered surface 1101, sharp corners are formed at the connecting positions of the first alignment surfaces 1102 and the first profiling cambered surface 1101, the first clamping part 111 is arranged at one end of the columnar profiling part 110, the second test structure 12 comprises a main body part 120 and a second clamping part 121, an opening 1200 is formed in one side of the main body part 120, the main body part 120 is provided with a placing groove 1201, the placing groove 1201 is communicated with the opening 1200, the groove wall surface of the placing groove 1201 comprises a second profiling cambered surface 1202, a second alignment surface 1203 and a transition surface 1204, the second profiling cambered surface 1202 is spaced from the second alignment surface 1203, a transition surface 1204 is connected between the second profiling cambered surface 1202 and the adjacent second alignment surface 1203, the second clamping part 121 is arranged at the two opposite sides of the main body part 120, the second clamping part 121 and the opening 1200 are respectively positioned in the two opposite sides of the main body part 120, the first test structure 11 is placed in the placing groove 1201, and the groove 1201 is in the first alignment surface is in contact with the second profiling surface 1202, and the first profiling surface 1202 is in contact with the second alignment surface 1204, and the second profiling surface 1204 is in contact with the first profiling surface 1202, and the second profiling surface is in contact with the first profiling surface and the transition surface 1204, and the first profiling surface is in contact with the first profiling surface and the second profiling surface and the first profiling surface and the second profiling surface and the first profiling structure 11.

By providing the first test structure 11 with the first alignment surface 1102 and providing the second test structure 12 with the second alignment surface 1203, the first test structure 11 can be placed on the second test structure 12 in a relatively stable posture by correspondingly abutting the first alignment surface 1102 and the second alignment surface 1203, so that the consistency of the relative positions of the first clamping portion 111 and the second clamping portion 121 is improved in the process of multiple tests.

Further, by spacing the second alignment surface 1203 from the second contoured surface 1202, the second contoured surface 1202 can be prevented from contacting the first contoured surface 1101, and the contoured gap 13 can be formed between the first contoured surface 1101, the second contoured surface 1202, and the transition surface 1204.

Further, by forming the junction between the first alignment surface 1102 and the first profiling cambered surface 1101 to form a sharp corner, on one hand, the junction between the first alignment surface 1102 and the first profiling cambered surface 1101 can be made more clear, so that only the first alignment surface 1102 and the second alignment surface 1203 are correspondingly abutted, and the first profiling cambered surface 1101 is prevented from being partially abutted against the second alignment surface 1203, thereby improving the stability of the posture of the first test structure 11 when being placed on the second test structure 12, and on the other hand, the space from the first profiling cambered surface 1101 to the first alignment surface 1102 can be turned, so that the difficulty of the adhesive entering between the first alignment surface 1102 and the second alignment surface 1203 when the adhesive is injected into the profiling gap 13 can be improved, and the influence on the test result caused by the adhesive entering between the first alignment surface 1102 and the second alignment surface 1203 can be reduced, thereby improving the authenticity of the test result obtained by using the adhesive bonding performance test device 1 provided by the utility model.

It will be appreciated that the first test structure 11 and the second test structure 12 may be embodied in a variety of different structures, alternatively, the outer peripheral surface of the cylindrical contoured portion 110 may include a first alignment surface 1102, two opposite sides of the first alignment surface 1102 are respectively connected to two opposite sides of the first contoured surface 1101, and the main body portion 120 also includes a second alignment surface 1203.

As shown in fig. 3, alternatively, the outer peripheral surface of the cylindrical profiling portion 110 may include a plurality of first alignment surfaces 1102, where any two of the plurality of first alignment surfaces 1102 form an included angle, and two of the plurality of first alignment surfaces 1102 are respectively connected to opposite sides of the first profiling cambered surface 1101, the groove wall of the placement groove 1201 includes a plurality of second alignment surfaces 1203, and the plurality of second alignment surfaces 1203 respectively abut against the plurality of first alignment surfaces 1102.

Optionally, the first alignment surface 1102 may be a plane, the corresponding second alignment surface 1203 is also a plane, or the first alignment surface 1102 may be a curved surface or other special-shaped surface, and when the first alignment surface 1102 abuts against the second alignment surface 1203, the first alignment surface 1102 and the second alignment surface 1203 can slide relatively along the first direction S1, so as to avoid the first alignment surface 1102 and the second alignment surface 1203 from affecting the testing process of pulling the first test structure 11 and the second test structure 12 along the first direction S1.

As shown in fig. 4 and 5, optionally, the first alignment surface 1102 is provided with a first alignment structure 1103, the second alignment surface 1203 is provided with a second alignment structure 1205 corresponding to the first alignment structure 1103, one of the first alignment structure 1103 and the second alignment structure 1205 includes a protrusion, the other includes a bar slot, the first alignment structure 1103 and the second alignment structure 1205 are slidably connected along a first direction S1, wherein the first direction S1 is a direction opposite to the opening 1200 and the second clamping portion 121, so that the first alignment surface 1102 and the second alignment surface 1203 can be relatively aligned by the first alignment structure 1103 and the second alignment structure 1205 in a sliding connection, while preventing the first alignment surface 1102 and the second alignment surface 1203 from affecting a testing process of pulling the first test structure 11 and the second test structure 12 along the first direction S1, and in particular, when the first alignment surface 1102 and the second alignment surface 1203 are corresponding planes, the first alignment surface 1102 and the second alignment structure 1203 are provided with a plane which is beneficial to maintain the relative stable relative alignment posture of the first alignment surface 1102 and the second alignment surface 1203.

Preferably, the first alignment structure 1103 includes a bar-shaped groove, and the second alignment structure 1205 includes a convex strip, so that the groove wall of the placing groove 1201 does not need to be thickened for setting the bar-shaped groove, therefore, the groove wall of the placing groove 1201 can be lighter and thinner, thereby making the structure of the adhesive bonding performance testing device 1 more compact and reasonable, and being beneficial to making the adhesive bonding performance testing device 1 more miniaturized.

Optionally, two sides of the first alignment structure 1103 along the second direction S2 have two third alignment surfaces 1103a, two sides of the second alignment structure 1205 along the second direction S2 have two fourth alignment surfaces 1205a, and the two third alignment surfaces 1103a are respectively abutted against the two fourth alignment surfaces 1205a, wherein the second direction S2 is perpendicular to the first direction S1 and parallel to the first alignment surface 1102, so that the first alignment structure 1103 and the second alignment structure 1205 can be slidably matched and connected along the first direction S1 by the two third alignment surfaces 1103a respectively abutted against the two fourth alignment surfaces 1205 a.

More preferably, the first alignment structure 1103 further has a first connecting surface 1103b connected between two third alignment surfaces 1103a, the second alignment structure 1205 further has a second connecting surface 1205b connected between two fourth alignment surfaces 1205a, the first connecting surface 1103b is spaced from the second connecting surface 1205b (as shown in fig. 4), or the first connecting surface 1103b is partially abutted against the second connecting surface 1205b (as shown in fig. 5), in other words, the first connecting surface 1103b is at least partially spaced from the second connecting surface 1205b, so as to reduce the effective contact area between the first connecting surface 1103b and the second connecting surface 1205b, thereby reducing the magnitude of the friction force generated between the first alignment structure 1103 and the second alignment structure 1205 when the first test structure 11 and the second test structure 12 are pulled, and further improving the authenticity of the test result obtained by performing the test using the adhesive bonding performance test device 1 provided by the present utility model.

Optionally, the transition surface 1204 may abut against the connection between the first alignment surface 1102 and the first profiling cambered surface 1101, so as to further limit the relative positions of the first test structure 11 and the second test structure 12 when the first alignment surface 1102 abuts against the second alignment surface 1203 correspondingly. At this time, since the transition surface 1204 is abutted against the junction of the first pair of alignment surfaces 1102 and the first contoured surface 1101, it can be considered that the transition surface 1204 is also connected to the first contoured surface 1101 and the first pair of alignment surfaces 1102.

The transition surface 1204 is correspondingly connected between any two adjacent profiling cambered surfaces (namely, between the adjacent first profiling cambered surface 1101 and the adjacent second profiling cambered surface 1202 or between the adjacent two second profiling cambered surfaces 1202), at this time, optionally, the axes of the two adjacent profiling cambered surfaces are located on the corresponding plane where the same transition surface 1204 is located, so that the area of the transition surface 1204 is smaller, the bonding area of the adhesive bonded on the transition surface 1204 is reduced, and the influence of the bonding effect of the adhesive and the transition surface 1204 on the test result is further reduced, so that the authenticity of the test result obtained by using the adhesive bonding performance test device 1 provided by the utility model is improved.

It can be understood that the distance between the first profiling cambered surface 1101 and the second profiling cambered surface 1202 can be adjusted by adjusting the size of the transition surface 1204, so as to obtain the adhesive bonding performance testing device 1 with different sizes of the various profiling gaps 13, thereby being capable of simulating the situation of different intervals when the battery cells 20 are arranged. For example, the first profiling curved surface 1101 and the second profiling curved surface 1202 are spaced apart by a distance of 1mm, 2mm, 3mm, 4mm, 5mm, or the like to simulate the arrangement of the cells 20, the distance being 1mm, 2mm, 3mm, 4mm, 5mm, or the like.

As shown in fig. 5, on the cross section perpendicular to the first direction S1, the central angle of the arc formed by the first profiling arc 1101 is θ1, the central angle of the arc formed by the second profiling arc 1202 is θ2, and the adhesive bonding performance testing device 1 can also simulate the situation when the arrangement rules of the battery cells 20 are different by adjusting the specific structures of the first testing structure 11 and the second testing structure 12, for example, the sizes of the central angle θ1 and the central angle θ2, the arrangement of the first profiling arc 1101 and the second profiling arc 1202, and the like.

Next, a specific structure of the adhesive bonding property testing device 1 will be described with reference to the drawings, in which the adhesive bonding property testing device 1 is used to simulate the case where the cells 20 are arranged in three different arrangement rules.

As shown in fig. 1, 3, 5 and 6, alternatively, the adhesive bonding performance testing apparatus 1 is used to simulate the case where two cylindrical cells 20 are arranged at intervals in opposition, and at this time, the wall surface of the placement groove 1201 includes a second profiling cambered surface 1202, θ1=θ2=180°, and the profiling gap 13 is formed in the gap shape in the target area 21 as shown in fig. 6.

As shown in fig. 5, alternatively, at this time, the cylindrical profiling portion 110 may include a first alignment surface 1102 and the main body portion 120 also includes a second alignment surface 1203, so that the volumes of the first test structure 11 and the second test structure 12 are smaller, thereby reducing the test space required for the first test structure 11 and the second test structure 12.

Alternatively, as shown in fig. 3, the cylindrical contoured portion 110 may include a plurality of first alignment surfaces 1102 and the body portion 120 may also include a plurality of second alignment surfaces 1203, as described in the previous embodiments.

As shown in fig. 7 to 9, alternatively, the adhesive bonding performance testing apparatus 1 is used to simulate the case where three cylindrical cells 20 are annularly and uniformly arranged at intervals, and at this time, the wall surface of the placement groove 1201 includes two second profiling cambered surfaces 1202, θ1=θ2=60°, the first profiling cambered surface 1101, the two second profiling cambered surfaces 1202 are annularly and uniformly arranged at intervals, a transition surface 1204 is connected between the two second profiling cambered surfaces 1202, and the profiling gap 13 is formed into a gap shape in the target area 21 as shown in fig. 7.

As shown in fig. 8, alternatively, at this time, the cylindrical profiling portion 110 may include a first alignment surface 1102 and the main body portion 120 also includes a second alignment surface 1203, so that the volumes of the first test structure 11 and the second test structure 12 are smaller, thereby reducing the test space required for the first test structure 11 and the second test structure 12.

Alternatively, as shown in fig. 9, the cylindrical profiling portion 110 may have a plurality of first alignment surfaces 1102, and the groove wall surface of the placement groove 1201 also includes a plurality of second alignment surfaces 1203, as described in the previous embodiments. Alternatively, the second alignment surface 1203 may be located on the same plane as the transition surface 1204 connected to the second alignment surface 1203, thereby enabling the second test structure 12 to be simpler in shape, so that the second test structure 12 is easier to manufacture.

Alternatively, the second alignment surface 1203 may be located on the same plane as the transition surface 1204 connected to the second alignment surface 1203, thereby enabling the second test structure 12 to be simpler in shape, so that the second test structure 12 is easier to manufacture.

As shown in fig. 10 to 12, alternatively, the adhesive bonding performance testing apparatus 1 is used to simulate the situation that four cylindrical electric cores 20 are annularly and uniformly arranged at intervals, at this time, the wall surface of the placement groove 1201 includes three second profiling cambered surfaces 1202, θ1=θ2=90°, the first profiling cambered surface 1101 and the three second profiling cambered surfaces 1202 are annularly and uniformly arranged at intervals, a transition surface 1204 is connected between any two adjacent second profiling cambered surfaces 1202, and the profiling gap 13 is formed into a gap shape in the target area 21 as shown in fig. 10.

As shown in fig. 11, alternatively, at this time, the cylindrical profiling portion 110 may include a first alignment surface 1102 and the main body portion 120 also includes a second alignment surface 1203, so that the volumes of the first test structure 11 and the second test structure 12 are smaller, thereby reducing the test space required for the first test structure 11 and the second test structure 12.

Alternatively, as shown in fig. 12, the cylindrical contoured portion 110 may include a plurality of first alignment surfaces 1102 and the body portion 120 may also include a plurality of second alignment surfaces 1203, as described in the previous embodiments. Alternatively, the second alignment surface 1203 may be located on the same plane as the transition surface 1204 connected to the second alignment surface 1203, thereby enabling the second test structure 12 to be simpler in shape, so that the second test structure 12 is easier to manufacture.

Alternatively, the second alignment surface 1203 may be located on the same plane as the transition surface 1204 connected to the second alignment surface 1203, thereby enabling the second test structure 12 to be simpler in shape, so that the second test structure 12 is easier to manufacture.

Referring to fig. 1 to fig. 2 again, alternatively, the columnar profiling portion 110 and the main body portion 120 are made of steel materials, so that the materials of the columnar profiling portion 110 and the main body portion 120 are consistent with the steel shell material of the columnar battery cell 20, so that the heat dissipation efficiency of the first profiling cambered surface 1101 and the second profiling cambered surface 1202 can be more similar to that of the surface of the columnar battery cell 20, and the temperature change condition of the adhesive in the filling and curing processes is more similar to the actual use condition, so as to further improve the authenticity of the result obtained by using the adhesive bonding performance testing device 1.

In the case of performing the test using the adhesive bonding performance testing apparatus 1, specifically, the first clamping portion 111 and the second clamping portion 121 are pulled along the first direction S1, based on this, preferably, the first clamping portion 111 has a first central axis 111a extending along the opposite direction (i.e., along the first direction S1) of the opening 1200 and the second clamping portion 121, and the second clamping portion 121 has a second central axis 121a extending along the opposite direction (i.e., along the first direction S1) of the opening 1200 and the second clamping portion 121, and the first central axis 111a coincides with the second central axis 121a, so that when the first clamping portion 111 and the second clamping portion 121 are pulled along the first direction S1, a situation that the pulling force applied to the first clamping portion 111 and the second clamping portion 121 is converted into the torque of the adhesive bonding performance testing apparatus 1 can be avoided, thereby enabling the pulling force to be conducted more to the adhesive to be able to enhance the chemotaxis of the result obtained by performing the test using the adhesive bonding performance testing apparatus 1.

Alternatively, the first clamping portion 111 and the second clamping portion 121 may each be sheet-like with a width of about 5mm, for example, the widths of the first clamping portion 111 and the second clamping portion 121 may be 3mm, 4mm, 5mm, or 6mm, so that the first clamping portion 111 and the second clamping portion 121 each have a larger surface for the external chuck to clamp.

As shown in fig. 13, the present utility model provides an adhesive bonding performance testing apparatus 3, which includes the adhesive bonding performance testing device 1 and the pull detection mechanism 30 according to the foregoing technical solutions, where the pull detection mechanism 30 includes a driving detection structure 301, a first chuck 302, and a second chuck 303, the first chuck 302 and the second chuck 303 are disposed opposite to each other at a distance from each other and in the driving detection structure 301, the first chuck 302 can clamp the first clamping portion 111, the second chuck 303 can clamp the second clamping portion 121, the driving detection structure 301 can drive the first chuck 302 and the second chuck 303 away from each other, and detect a reaction force applied to the first chuck 302 and/or the second chuck 303 in real time. Since the adhesive bonding performance testing device 1 provided in the foregoing technical solution includes the first testing structure 11 that is relatively stable when placed in the placement groove 1201, and the consistency of the relative positions of the first clamping portion 111 and the second clamping portion 121 is high during multiple tests, so long as the first clamping head 302 of the adhesive bonding performance testing device 3 can correspondingly clamp the first clamping portion 111 during the first test, the second clamping head 303 can correspondingly clamp the second clamping portion 121 at the same time, and during the subsequent test, the first clamping head 302 can correspondingly clamp the first clamping portion 111 without adjusting the positions of the first clamping head 302 and the second clamping head 303 again, and the second clamping head 303 can correspondingly clamp the second clamping portion 121 at the same time, so that the test process can be simplified and the test efficiency can be improved.

In the description herein, it should be understood that the terms "upper," "lower," "left," "right," and the like are based on the orientation or positional relationship shown in the drawings, and are merely for convenience of description and to simplify the operation, rather than to indicate or imply that the apparatus or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the utility model. Furthermore, the terms "first," "second," and the like, are used merely for distinguishing between descriptions and not for distinguishing between them.

In the description herein, reference to the term "one embodiment," "an example," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples.

Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in the foregoing embodiments, and that the embodiments described in the foregoing embodiments may be combined appropriately to form other embodiments that will be understood by those skilled in the art.

The technical principle of the present utility model is described above in connection with the specific embodiments. The description is made for the purpose of illustrating the general principles of the utility model and should not be taken in any way as limiting the scope of the utility model. Other embodiments of the utility model will be apparent to those skilled in the art from consideration of this specification without undue burden.

Claims (10)

1. An adhesive bonding performance testing device is characterized by comprising:

The first test structure comprises a columnar profiling part and a first clamping part, the outer circumferential surface of the columnar profiling part comprises a first profiling cambered surface and a first alignment surface connected to two opposite sides of the first profiling cambered surface, a sharp angle is formed at the joint of the first alignment surface and the first profiling cambered surface, and the first clamping part is arranged at one end of the columnar profiling part; and

The second test structure comprises a main body part and a second clamping part, wherein an opening is formed in one side of the main body part, the main body part is provided with a placing groove, the placing groove is communicated with the opening, the groove wall surface of the placing groove comprises a second profiling cambered surface, a second alignment surface and a transition surface, the second profiling cambered surface is spaced from the second alignment surface, the transition surface is connected between the second profiling cambered surface and the adjacent second alignment surface, the second clamping part is arranged on the main body part, and the second clamping part and the opening are respectively positioned on two opposite sides of the main body part;

The first test structure is placed in the placing groove, the first alignment surface is correspondingly abutted to the second alignment surface, and a profiling gap is formed between the first profiling cambered surface, the second profiling cambered surface and the transition surface.

2. The adhesive bonding performance testing device according to claim 1, wherein the first clamping portion has a first central axis extending in a direction opposite to the opening and the second clamping portion, the second clamping portion has a second central axis extending in a direction opposite to the opening and the second clamping portion, and the first central axis coincides with the second central axis.

3. The adhesive bonding performance testing device according to claim 1, wherein the outer peripheral surface of the columnar profiling portion includes a first alignment surface, opposite sides of the first alignment surface are respectively connected to opposite sides of the first profiling cambered surface, and the main body portion also includes a second alignment surface; or alternatively

The outer peripheral surface of the columnar profiling part comprises a plurality of first alignment surfaces, an included angle is formed between any two of the first alignment surfaces, two of the first alignment surfaces are respectively connected to two opposite sides of the first profiling cambered surface, the groove wall of the placing groove comprises a plurality of second alignment surfaces, and the second alignment surfaces are respectively correspondingly abutted to the first alignment surfaces.

4. The adhesive bonding performance testing device according to claim 3, wherein a first alignment structure is arranged on the first alignment surface, a second alignment structure is arranged on the second alignment surface corresponding to the first alignment structure, one of the first alignment structure and the second alignment structure comprises a convex strip, the other one of the first alignment structure and the second alignment structure comprises a strip-shaped groove, the first alignment structure and the second alignment structure are connected in a sliding fit manner along a first direction, and the first direction is a direction opposite to the opening and the second clamping part.

5. The adhesive bonding performance testing device according to claim 4, wherein two third alignment surfaces are respectively arranged on two sides of the first alignment structure along the second direction, two fourth alignment surfaces are respectively arranged on two sides of the second alignment structure along the second direction, the two third alignment surfaces are respectively and correspondingly abutted to the two fourth alignment surfaces, and the second direction is perpendicular to the first direction and parallel to the first alignment surfaces.

6. The adhesive bonding performance testing device according to claim 5, wherein the first alignment structure further has a first connection surface connected between the two third alignment surfaces, and the second alignment structure further has a second connection surface connected between the two fourth alignment surfaces;

The first connecting surface is spaced from the second connecting surface, or the first connecting surface is partially abutted against the second connecting surface.

7. The adhesive bonding performance testing device according to claim 1, wherein the transition surface is correspondingly connected between any two adjacent profiling cambered surfaces, and the axes of the two adjacent profiling cambered surfaces are located on the same corresponding plane where the transition surface is located.

8. The adhesive bonding performance testing device according to any one of claims 1 to 7, wherein, on a cross section perpendicular to a direction in which the opening and the second clamping portion are opposed, a central angle of an arc formed by the first profiling cambered surface being truncated is θ1, and a central angle of an arc formed by the second profiling cambered surface being truncated is θ2;

The groove wall surface of the placing groove comprises a second profiling cambered surface, θ1=θ2=180°, or the groove wall surface of the placing groove comprises two second profiling cambered surfaces, θ1=θ2=60°, the first profiling cambered surfaces and the two second profiling cambered surfaces are annularly and uniformly arranged at intervals, a transition surface is connected between the two second profiling cambered surfaces, or the groove wall surface of the placing groove comprises three second profiling cambered surfaces, θ1=θ2=90°, the first profiling cambered surfaces and the three second profiling cambered surfaces are annularly and uniformly arranged at intervals, and the transition surface is connected between any two adjacent second profiling cambered surfaces.

9. The adhesive bonding performance testing device according to any one of claims 1 to 7, wherein the columnar profiling portion and the main body portion are both made of steel material.

10. An adhesive bonding performance test device, comprising:

The adhesive bonding property test device according to any one of claims 1 to 9; and

The device comprises a pulling detection mechanism, wherein the pulling detection mechanism comprises a driving detection structure, a first chuck and a second chuck, the first chuck and the second chuck are arranged on the driving detection structure at intervals relatively, the first chuck can clamp the first clamping part, the second chuck can clamp the second clamping part, the driving detection structure can drive the first chuck and the second chuck to be far away from each other, and the reaction force borne by the first chuck and/or the second chuck is detected.