Adhesive tape aging test device

Abstract

The utility model provides a rubber strip aging test device which comprises at least two layers of fixing blocks which are arranged in a stacked mode and detachably connected, a containing cavity is formed between every two adjacent fixing blocks, the containing cavities are used for containing and extruding rubber strips, and the containing cavities are communicated with the outer walls of the fixing blocks so that electrolyte can enter the containing cavities. The adhesive tape aging test device is simple in structure and convenient to manufacture, the actual working environment of the adhesive tape can be effectively simulated, and the aging test result is more accurate.

Description

Technical Field

[0001] This application relates to the technical field of aging testing, and particularly to a rubber strip aging testing device. Background Art

[0002] Rubber strips are usually used for sealing in batteries. As the usage process extends, the rubber strips will gradually age. Especially under the corrosion of the electrolyte, the aging rate of the rubber strips will accelerate. Therefore, the aging testing of rubber strips is very important. The existing method is to directly immerse the rubber strips in the electrolyte for aging testing, ignoring the influence of the actual working environment of the rubber strips in the battery. Therefore, there is an urgent need for a rubber strip aging testing device that can more realistically simulate the working environment. Utility Model Content

[0003] In view of this, the purpose of this application is to propose a rubber strip aging testing device to solve or partially solve the related problems mentioned in the background art.

[0004] This application provides a rubber strip aging testing device, including at least two layers of fixed blocks arranged in a stacked manner and detachably connected. An accommodation cavity is formed between two adjacent fixed blocks. The accommodation cavity is used to accommodate and squeeze the rubber strip, and the accommodation cavity communicates with the outer wall of the fixed block for the electrolyte to enter the accommodation cavity.

[0005] In some embodiments, between two adjacent fixed blocks, at least one side of one fixed block in the thickness direction is provided with an accommodation groove, and the accommodation groove cooperates with the side wall of the other fixed block to form the accommodation cavity.

[0006] In some embodiments, one side of the fixed block in the thickness direction is provided with a plurality of spaced-apart accommodation grooves.

[0007] In some embodiments, between two adjacent fixed blocks, the accommodation groove and the side wall of the other fixed block are in clearance fit, so that the accommodation groove communicates with the outer wall of the fixed block.

[0008] In some embodiments, between two adjacent fixed blocks, at least one side of one fixed block in the thickness direction is provided with a boss, and the boss abuts against the side wall of the other fixed block, so that the accommodation groove and the side wall are in clearance fit.

[0009] In some embodiments, one side of the fixed block in the thickness direction is provided with a plurality of bosses, and the orthographic projection of the bosses on the fixed block completely does not overlap with the orthographic projection of the accommodation grooves on the fixed block.

[0010] In some embodiments, the receiving groove and the boss are provided on one side of the fixing block in the thickness direction. The boss includes a first boss and a second boss. The first boss is located on opposite sides of the receiving groove in the length direction, and the second boss is located in the middle of opposite sides of the receiving groove in the width direction.

[0011] In some embodiments, a first through hole is provided on the side surface of the fixing block in the thickness direction. The first through hole is used to connect a bolt to detachably connect at least two layers of fixing blocks.

[0012] In some embodiments, the first through hole is provided on each boss.

[0013] In some embodiments, a second through hole is provided on the side surface of the fixing block in the thickness direction. The second through hole is used to cooperate with a clamping component.

[0014] As can be seen from the above, the rubber strip aging test device provided in the present application includes at least two layers of fixing blocks that are stacked and detachably connected. Stacking is convenient for subsequent extrusion of the rubber strip; detachable connection is convenient for placing or removing the rubber strip; at least two layers of fixing blocks are provided to test multiple rubber strips. A receiving cavity is formed between two adjacent fixing blocks. The receiving cavity is used to accommodate and extrude the rubber strip, so as to simulate the scenario where the rubber strip is compressed in the battery and improve the accuracy of the rubber strip aging test. The receiving cavity communicates with the outer wall of the fixing block and is used for the electrolyte to enter the receiving cavity to simulate the corrosion effect of the electrolyte on the rubber strip, further improving the accuracy of the rubber strip aging test. The rubber strip aging test device has a simple structure and is easy to manufacture, can effectively simulate the actual working environment of the rubber strip, and makes the aging test results more accurate. Description of the Drawings

[0015] In order to more clearly illustrate the technical solutions in the present application or related technologies, the following will briefly introduce the drawings required for use in the description of the embodiments or related technologies. Obviously, the drawings in the following description are only the embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0016] Figure 1 It is a three-dimensional structural schematic diagram of a rubber strip aging test device in an embodiment of the present application.

[0017] Figure 2 It is Figure 1 a side perspective schematic diagram of the rubber strip aging test device.

[0018] Figure 3 It is Figure 2 a cross-sectional structural schematic diagram of the rubber strip aging test device in the A-A direction.

[0019] Figure 4 This is a top view structural schematic diagram of the fixing block in the embodiment of the present application.

[0020] Reference numerals: 1, fixing block; 1-1, receiving groove; 1-2, boss; 1-2-1, first boss; 1-2-2, second boss; 1-3, first through hole; 1-4, second through hole; 2, receiving cavity. Specific embodiments

[0021] To make the objectives, technical solutions, and advantages of the present application more clear and understandable, the present application will be further described in detail below with reference to specific embodiments and the accompanying drawings.

[0022] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in the embodiments of the present application should be the general meanings understood by those with ordinary skills in the field to which the present application belongs. The "first", "second", and similar terms used in the embodiments of the present application do not indicate any order, quantity, or importance, but are only used to distinguish different components. The terms such as "including" or "comprising" mean that the elements or objects appearing before this word cover the elements or objects listed after this word and their equivalents, without excluding other elements or objects. The terms such as "connected" or "coupled" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. The terms such as "upper", "lower", "left", and "right" are only used to represent relative positional relationships, and when the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0023] In a battery, a rubber strip is usually used for sealing. As the usage process prolongs, the rubber strip will gradually age. Especially under the corrosion of the electrolyte, the aging rate of the rubber strip will accelerate. Therefore, the aging test of the rubber strip is very important.

[0024] The existing method is to directly immerse the rubber strip in the electrolyte for aging test, ignoring the influence of the actual working environment of the rubber strip in the battery. For example, in the actual working environment, the top and bottom surfaces of the rubber strip are usually under pressure. Ignoring the pressurized state of the rubber strip will reduce the accuracy of the aging test. Therefore, there is an urgent need for a rubber strip aging test device that more realistically simulates the working environment.

[0025] Hereinafter, through specific embodiments and in combination with the attached Figures 1 to 4 The technical solutions of the present application will be further described in detail.

[0026] In some embodiments of the present application, a rubber strip aging test device is provided, including at least two layers of fixing blocks 1 that are stacked and detachably connected. A receiving cavity 2 is formed between two adjacent fixing blocks 1. The receiving cavity 2 is used to receive and squeeze the rubber strip, and the receiving cavity 2 communicates with the outer wall of the fixing block 1 for the electrolyte to enter the receiving cavity 2.

[0027] As Figure 1 shown, it is a schematic three-dimensional structure diagram of a rubber strip aging test device. The rubber strip aging test device includes stacked fixing blocks 1. The length of the fixing block 1 is, for example, 180 mm, the width is, for example, 40 mm, and the thickness is, for example, 22 mm, without specific limitation. By stacking the fixing blocks 1, it is convenient to set rubber strips between the fixing blocks 1 later to squeeze the top and bottom surfaces of the rubber strips to simulate the actual working environment of the rubber strips.

[0028] The number of the fixing blocks 1 is at least two layers, such as two layers, three layers or four layers, etc., without specific limitation, so as to be able to conduct aging tests on multiple rubber strips simultaneously.

[0029] The fixing blocks 1 are detachably connected, for example, by bolt connection, snap connection, etc., without specific limitation, so as to place or remove the rubber strip between the fixing blocks 1.

[0030] As Figure 1 shown, a receiving cavity 2 is formed between two adjacent fixing blocks 1. For example, the receiving cavity 2 can be formed by grooving on the contact surfaces of two adjacent fixing blocks 1, without specific limitation. The receiving cavity 2 is used to receive and squeeze the rubber strip, so that the scenario of the rubber strip being compressed in the battery can be simulated, improving the accuracy of the rubber strip aging test.

[0031] The receiving cavity 2 communicates with the outer wall of the fixing block 1. For example, through holes can be provided to connect the receiving cavity 2 and the outer wall of the fixing block 1, without specific limitation, so that the electrolyte outside the test device can enter the receiving cavity 2 to simulate the corrosion effect of the electrolyte on the rubber strip, further improving the accuracy of the rubber strip aging test.

[0032] This rubber strip aging test device has a simple structure and is easy to manufacture. It can effectively simulate the actual working environment of the rubber strip, making the aging test results more accurate.

[0033] In some embodiments, receiving grooves 1-1 are respectively provided on two opposite sides of the fixing block 1 along the thickness direction. The receiving grooves 1-1 of two adjacent fixing blocks 1 cooperate to form the receiving cavity 2. The rubber strip is placed in the receiving cavity 2, and its top and bottom surfaces can be squeezed by the upper and lower fixing blocks 1 to simulate the working environment. Moreover, the upper and lower receiving grooves 1-1 can also play a role in limiting the rubber strip, and the test stability is good.

[0034] In some embodiments, between two adjacent fixing blocks 1, a receiving groove 1-1 is provided on one side of a fixing block 1 along the thickness direction, and the receiving groove 1-1 cooperates with the side wall of the other fixing block 1 to form the receiving cavity 2.

[0035] As Figure 2 shown, it is Figure 1Side perspective schematic diagram of the middle rubber strip aging test device. Between two adjacent fixing blocks 1, on one side of a fixing block 1 in the thickness direction, there is a receiving groove 1-1. The width of the receiving groove 1-1 is, for example, 2 mm, the length is, for example, 127 mm, and the depth is, for example, 2.7 mm, and no specific limitation is made. The receiving groove 1-1 cooperates with the side wall of the other fixing block 1 to form a receiving cavity 2. The rubber strip is placed in the receiving cavity 2, and its top and bottom surfaces can be squeezed by the upper and lower fixing blocks 1 to simulate the working environment. Only providing the receiving groove 1-1 on one side of the fixing block 1 is convenient for processing.

[0036] In some embodiments, on one side of the fixing block 1 in the thickness direction, there are a plurality of receiving grooves 1-1 arranged at intervals. By providing a plurality of receiving grooves 1-1 on the same side of the fixing block 1, a plurality of rubber strips can be accommodated simultaneously, which is convenient for large-scale testing.

[0037] In some embodiments, a through hole is provided in the fixing block 1. One end of the through hole is connected to the bottom or side wall of the receiving groove 1-1, and the other end is connected to the outer wall of the fixing block 1, so that the receiving groove 1-1 communicates with the outer wall of the fixing block 1, facilitating the entry of electrolyte into the receiving groove 1-1 to simulate the corrosion effect on the rubber strip.

[0038] In some embodiments, between two adjacent fixing blocks 1, the receiving groove 1-1 and the side wall of the other fixing block 1 are in clearance fit, so that the receiving groove 1-1 communicates with the outer wall of the fixing block 1.

[0039] As Figure 2 shown, between two adjacent fixing blocks 1, the receiving groove 1-1 and the side wall of the other fixing block 1 are in clearance fit, so that the receiving groove 1-1 communicates with the outer wall of the fixing block 1, and thus the electrolyte can flow into the receiving groove 1-1 through the gap. The clearance fit method is simpler and more convenient than the method of opening holes in the fixing block 1, and the processing difficulty is low.

[0040] In some embodiments, on opposite sides of the fixing block 1 in the thickness direction, there are respectively provided convex platforms 1-2. After the convex platforms 1-2 of two adjacent fixing blocks 1 abut against each other, a gap is formed on the side surface of the convex platforms 1-2, facilitating the entry of electrolyte into the receiving groove 1-1.

[0041] In some embodiments, between two adjacent fixing blocks 1, on one side of a fixing block 1 in the thickness direction, there is a convex platform 1-2, and the convex platform 1-2 abuts against the side wall of the other fixing block 1, so that the receiving groove 1-1 is in clearance fit with the side wall.

[0042] As Figure 3 shown, Figure 2 is the sectional structure schematic diagram of the middle rubber strip aging test device in the A-A direction. By providing a convex platform 1-2 on one side of the fixing block 1, a gap is formed on the side surface of the convex platform 1-2 after the convex platform 1-2 abuts against the other fixing block 1, facilitating the entry of electrolyte into the receiving groove 1-1, and the processing is convenient.

[0043] In some embodiments, a plurality of protrusions 1-2 are provided on one side of the fixing block 1 in the thickness direction, and the orthographic projection of the protrusions 1-2 on the fixing block 1 does not overlap with the orthographic projection of the receiving groove 1-1 on the fixing block 1 at all.

[0044] As Figure 1 shown, a plurality of protrusions 1-2 are provided on one side of the fixing block 1 in the thickness direction, which can improve the stability of the fit between the fixing blocks 1 while forming a gap. The orthographic projection of the protrusions 1-2 on the fixing block 1 does not overlap with the orthographic projection of the receiving groove 1-1 on the fixing block 1 at all, avoiding blocking the electrolyte from entering the receiving groove 1-1.

[0045] In some embodiments, a receiving groove 1-1 and protrusions 1-2 are provided on one side of the fixing block 1 in the thickness direction. The protrusions 1-2 include a first protrusion 1-2-1 and a second protrusion 1-2-2. The first protrusion 1-2-1 is located on opposite sides of the receiving groove 1-1 in the length direction, and the second protrusion 1-2-2 is located in the middle of opposite sides of the receiving groove 1-1 in the width direction.

[0046] As Figure 4 shown, it is a schematic top view structure of a fixing block 1. A receiving groove 1-1 and protrusions 1-2 are provided on one side of the fixing block 1 in the thickness direction. The depth of the receiving groove 1-1 is, for example, 2.7 mm, and the height of the protrusions 1-2 is, for example, 0.3 mm, and the specific values are not limited. The protrusions 1-2 include a first protrusion 1-2-1 and a second protrusion 1-2-2. The first protrusion 1-2-1 is located on opposite sides of the receiving groove 1-1 in the length direction. The length of the first protrusion 1-2-1 is, for example, 40 mm, and the width is, for example, 26 mm, and the specific values are not limited. The second protrusion 1-2-2 is located in the middle of opposite sides of the receiving groove 1-1 in the width direction. The length of the second protrusion 1-2-2 is, for example, 37 mm, and the width is, for example, 18 mm. The distance between the first protrusion 1-2-1 and the second protrusion 1-2-2 is 45 mm, and the specific value is not limited. By providing four protrusions 1-2 on the outer periphery of the receiving groove 1-1, a gap can be formed to facilitate the entry of the electrolyte, and the structural stability of the test device can be ensured.

[0047] In some embodiments, a first through hole 1-3 is provided on the side surface of the fixing block 1 in the thickness direction. The first through hole 1-3 is used to connect bolts to detachably connect at least two layers of fixing blocks 1.

[0048] As Figure 2 shown, the fixing block 1 is provided with a first through hole 1-3. The first through hole 1-3 cooperating with bolts can realize the detachable connection of a plurality of fixing blocks 1. By tightening the bolts, the extrusion force on the rubber strip can be ensured, and the actual working environment of the rubber strip can be more realistically simulated.

[0049] In some embodiments, each boss 1-2 is provided with a first through hole 1-3.

[0050] As Figure 4 shown, by providing the first through holes 1-3 on all four bosses 1-2, the rubber strip in the accommodation cavity 2 can be more evenly squeezed after the fixing block 1 is connected, and the test effect is good.

[0051] In some embodiments, the side surface of the fixing block 1 in the thickness direction is provided with a second through hole 1-4, and the second through hole 1-4 is used to cooperate with the clamping component.

[0052] As Figure 1 shown, the boss 1-2 of the fixing block 1 is also provided with a second through hole 1-4 penetrating the fixing block 1. The second through hole 1-4 can be connected to clamping components such as hooks and ropes to facilitate immersing the rubber strip aging test device in the electrolyte or taking it out of the electrolyte.

[0053] In some embodiments, the usage method of the rubber strip aging test device includes: placing the rubber strip in the accommodation groove 1-1; placing the fixing block 1 and adjusting the bolt to squeeze the rubber strip; immersing the rubber strip aging test device in the electrolyte; taking out the rubber strip aging test device after a preset aging time; adjusting the bolt to take out the rubber strip for performance testing.

[0054] Those of ordinary skill in the art should understand that: the discussion of any of the above embodiments is only exemplary, and is not intended to imply that the scope of the present application (including the claims) is limited to these examples; under the idea of the present application, the technical features in the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations in different aspects of the embodiments of the present application as described above, and they are not provided in detail for the sake of brevity.

[0055] In addition, in the case of elaborating details to describe the exemplary embodiments of the present application, it is obvious to those skilled in the art that the present application embodiments can be implemented without these details or with variations of these details. Therefore, these descriptions should be considered illustrative rather than restrictive.

[0056] Although the present application has been described in combination with the embodiments of the present application, according to the previous description, many substitutions, modifications, and variations of these embodiments will be obvious to those of ordinary skill in the art.

[0057] The embodiments of the present application are intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the embodiments of the present application shall be included in the protection scope of the present application.

Claims

1. A rubber strip aging test device, characterized in that: It comprises at least two layers of stacked and detachably connected fixing blocks, a receiving cavity is formed between two adjacent fixing blocks, the receiving cavity is used to receive and extrude the rubber strip, the receiving cavity is connected to the outer wall of the fixing block, and the electrolyte is used to enter the receiving cavity.

2. The rubber strip aging test device according to claim 1, characterized in that: Between two adjacent fixing blocks, at least one side of one fixing block along the thickness direction is provided with a receiving groove, and the receiving groove cooperates with the side wall of the other fixing block to form the receiving cavity.

3. The rubber strip aging test device according to claim 2, characterized in that: A plurality of accommodating grooves arranged at intervals are provided on one side of the fixing block along the thickness direction.

4. The rubber strip aging test device according to claim 2, characterized in that: Between two adjacent fixing blocks, the accommodating groove is matched with a gap of a side wall of another fixing block, so that the accommodating groove is connected with the outer wall of the fixing block.

5. The rubber strip aging test device according to claim 4, characterized in that: Between two adjacent fixing blocks, a boss is provided on at least one side of one fixing block along the thickness direction, and the boss abuts against the side wall of another fixing block so that the accommodating groove is gap-matched with the side wall.

6. The rubber strip aging test device according to claim 5, characterized in that: A plurality of bosses are provided on one side of the fixing block along the thickness direction, and the orthographic projections of the bosses on the fixing block and the orthographic projections of the accommodating grooves on the fixing block do not overlap at all.

7. The rubber strip aging test device according to claim 5, characterized in that: The fixing block is provided with the receiving groove and the boss on one side along the thickness direction, and the boss includes a first boss and a second boss, the first boss is located on two opposite sides of the receiving groove along the length direction, and the second boss is located in the middle of two opposite sides of the receiving groove along the width direction.

8. The rubber strip aging test device according to claim 1, characterized in that: The fixing block is provided with a first through hole on a side surface along the thickness direction, and the first through hole is used for connecting bolts so that the at least two layers of fixing blocks can be detachably connected.

9. The rubber strip aging test device according to claim 8, characterized in that: Each boss is provided with the first through hole.

10. The rubber strip aging test device according to claim 1, characterized in that: The fixing block is provided with a second through hole on the side surface along the thickness direction, and the second through hole is used to cooperate with the clamping assembly.

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