Hidden crack simulation tool

Abstract

The utility model is suitable for the photovoltaic technology field, and provides a hidden crack simulation tool comprising a pedestal which is provided with a placing platform used for placing a battery piece; the lower smashing plate is arranged above the placing platform, a plurality of protruding pressing blocks are arranged on the face, facing the placing platform, of the lower smashing plate, and the faces, facing the placing platform, of the pressing blocks are spherical surfaces; the support is arranged between the base and the lower smashing plate, the support is fixedly connected with the base, and the support is connected with the lower smashing plate in a sliding mode. The device can simulate the impact of the external force on the battery piece, the support is connected with the base and the lower smashing plate, the lower smashing plate is guided, and the accuracy of the impact of the lower smashing plate is ensured. The subfissure simulation tool is simple in structure, low in manufacturing cost, single in component connection relation, small in fault risk and convenient to repair and maintain.

Description

TECHNICAL FIELD

[0001] The utility model belongs to photovoltaic technical field especially relates to a hidden crack simulation tool. BACKGROUND

[0002] The battery piece is easy to cause hidden crack because of external force impact in the transportation and use process, and these hidden cracks can seriously affect the performance and service life of the battery piece. In order to ensure the quality of the battery piece, the external force impact needs to be accurately simulated, and the battery piece after impact needs to be experimented and data is collected.

[0003] Firstly, the repeatability and consistency of artificial simulation impact are poor. The strength and angle of different operators exist difference, leading to that the test result is difficult to accurately compare, lacks scientific nature and reliability. Secondly, the existing hidden crack simulation equipment is complex in structure, has great fault risk, and is high in maintenance and repair cost, which limits the use frequency and range of enterprises to some extent. In addition, these equipment is usually expensive, and small and medium-sized enterprises are difficult to bear, so that hidden crack test is less seen in these enterprises.

[0004] In order to solve these problems, a hidden crack simulation tool with simple structure, low cost and small fault risk is needed. Through accurate mechanical design and guiding device, the position and strength of each impact are ensured to be consistent, and the accuracy and reliability of test result are improved. CONTENT OF THE UTILITY MODEL

[0005] The utility model provides a hidden crack simulation tool, and aims at solving the problems of complex structure, high maintenance and repair cost and limited application scene of the existing equipment.

[0006] The utility model is realized in this way, a hidden crack simulation tool, comprising:

[0007] The base is provided with a placing platform for placing the battery piece;

[0008] The lower rammer plate is placed above the placing platform, a plurality of protruding pressing blocks are arranged on the surface of the lower rammer plate facing the placing platform, and the surface of the pressing block facing the placing platform is spherical;

[0009] The bracket is arranged between the base and the lower rammer plate, the bracket is fixedly connected with the base, and the bracket is slidably connected with the lower rammer plate.

[0010] The utility model discloses a placing platform is arranged on the base, and the lower board is arranged at the corresponding position of the placing platform, and the spherical pressing block is arranged on the lower board, can simulate the external force impact condition that battery piece receives, and the bracket is connected with the base and the lower board, and guides the lower board, ensures the accuracy when the lower board impacts.

[0011] Optionally, the pressing blocks are uniformly distributed on the surface of the lower board facing the placing platform.

[0012] The uniform distribution of the pressing blocks ensures that the pressure applied on the battery piece is more uniform, preventing unnatural cracks or damage caused by excessive local pressure. This helps to more realistically simulate the stress distribution that battery pieces may encounter in actual use, thereby improving the accuracy and reliability of the test.

[0013] Optionally, a track is provided on the bracket, and a sliding block adapted to the track is provided on the lower board.

[0014] The track better guides the lower board, ensuring the falling direction of the lower board, ensuring the vertical movement of the lower board, avoiding lateral deviation, and improving the accuracy of the applied pressure. At the same time, the cooperation of the track and the sliding block reduces friction and prolongs the service life of the track and the sliding block. Appropriate lubricant can be added between the track and the sliding block to better reduce friction.

[0015] Optionally, a retaining ring is provided on the placing platform, and the retaining ring is arranged around the placing platform.

[0016] The retaining ring can effectively block the debris, prevent injury to the operator, reduce the occurrence of accidents, and improve the safety of the testing process.

[0017] Optionally, a soft cushion board is laid on the placing platform.

[0018] The soft cushion board can effectively protect the battery piece and reduce damage caused by uneven hardness or uneven surface of the placing platform.

[0019] Optionally, a scale is provided on the bracket.

[0020] The scale can accurately indicate the displacement distance of the lower board, ensuring consistent impact position and force for each test, standardizing the testing process, and improving the repeatability of the test results.

[0021] Optionally, a lock catch is provided on the bracket, and a buckle head adapted to the lock catch is provided on the lower board.

[0022] This invention, through the cooperation of the latch and buckle, can precisely control the height of the slamming plate, ensuring that the position is consistent for each test, improving the repeatability of the test, and at the same time, making it convenient for operators to pick up and put down the battery cells.

[0023] Optionally, the pressure block is detachably connected to the lower impact plate.

[0024] This invention features a detachable connection between the pressure block and the lower impact plate, allowing for easy modification of the pressure block's weight, shape, and connection position to meet different testing requirements, thereby improving the equipment's applicability.

[0025] Optionally, a cover plate is provided on the surface of the drop plate facing away from the placement platform.

[0026] This utility model protects the parts connected to the lower plate by covering them with a cover plate, preventing external forces from damaging the parts, and at the same time making the appearance more aesthetically pleasing.

[0027] Optionally, at least three legs are provided on the surface of the base facing away from the placement platform.

[0028] This utility model increases the stability of the support by setting out support legs, and at the same time allows the tooling to be used on uneven bottom surfaces, increasing the applicable scenarios of the tooling. Attached Figure Description

[0029] Figure 1 This is a first-view structural schematic diagram of the hidden crack simulation tooling provided by this utility model;

[0030] Figure 2 This is a schematic diagram of the second-view structure of the hidden crack simulation tooling provided by this utility model;

[0031] Figure 3 This is an enlarged view of point A;

[0032] Figure 4 This is a schematic diagram of the third-view structure of the hidden crack simulation tooling provided by this utility model;

[0033] Figure 5 This is a schematic diagram of the fourth-view structure of the hidden crack simulation tooling provided by this utility model.

[0034] Explanation of reference numerals in the attached figures:

[0035] 100. Hidden crack simulation fixture; 101. Base; 102. Lower impact plate; 103. Pressure block; 104. Support; 105. Track; 106. Slider; 107. Retaining ring; 108. Soft pad; 109. Scale; 110. Lock; 111. Buckle; 112. Cover plate; 113. Support leg. Detailed Implementation

[0036] In order to make the purpose, technical scheme and advantages of the utility model more clearly, the following will be further described in detail by combining with the drawings and examples. The examples of the examples are shown in the drawings, wherein the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions throughout. The examples described below by referring to the drawings are exemplary and are only used to explain the utility model, and cannot be understood as limiting the utility model. In addition, it should be understood that the specific examples described herein are only used to explain the utility model, and are not used to limit the utility model.

[0037] In the description of the utility model, it should be understood that the terms "length", "width", "upper", "lower", "left", "right", "horizontal", "top", "bottom" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, therefore, it cannot be understood as limiting the utility model.

[0038] In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Therefore, the features limited by "first", "second" can explicitly or implicitly include one or more of the features. In the description of the utility model, the meaning of "multiple" is two or more than two, unless otherwise specifically limited.

[0039] In the description of the utility model, it should be noted that unless otherwise specifically specified and limited, the terms "mounting", "connecting", "connecting" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected, it can be mechanically connected, or it can be electrically connected or can communicate with each other, it can be directly connected, or indirectly connected through an intermediate medium, it can be the communication or interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0040] In the utility model, unless another definite provision and limitation, first feature is "on" or "under" second feature, can include that first and second features are in direct contact, also can include that first and second features are not in direct contact but contact through other feature between them. Moreover, first feature "on", "above" and "upper surface of" second feature includes that first feature is directly above and obliquely above second feature, or just indicates that the horizontal height of first feature is higher than second feature. First feature "under", "below" and "lower surface of" second feature includes that first feature is directly below and obliquely below second feature, or just indicates that the horizontal height of first feature is less than second feature.

[0041] The disclosure below provides many different embodiments or examples for implementing the different structures of the utility model. In order to simplify the disclosure of the utility model, the components and settings of specific examples are described below. Of course, they are just examples, and the purpose is not to limit the utility model. In addition, the utility model can repeatedly refer to numbers and / or letters in different examples, and such repetition is for the purpose of simplification and clarity, which itself does not indicate the relationship between the various embodiments and / or settings discussed. In addition, the utility model provides examples of various specific processes and materials, but those skilled in the art can realize the application of other processes and / or the use of other materials.

[0042] The utility model discloses a setting platform is arranged on the base, and the lower plate is set in the position corresponding to the setting platform, the spherical pressure block is set on the lower plate, the impact situation of the external force that battery piece receives can be simulated, the support is connected with the base and the lower plate, and the lower plate is guided, and the accuracy when the lower plate impacts is ensured. The crack simulation tool structure is simple, and the manufacturing cost is low, and the connection relationship of each component is single, so the fault risk is small, and the maintenance is convenient.

[0043] Example One

[0044] As Figures 1 to 4 The utility model provides a kind of crack simulation tool 100, comprising:

[0045] Base 101, base 101 is set for placing platform for placing battery piece on;

[0046] Lower plate 102, lower plate 102 is placed above the placing platform, and a plurality of protruding pressure blocks 103 are set on the face of lower plate 102 towards the placing platform, and the face of pressure block 103 towards the placing platform is spherical;

[0047] Support 104, support 104 is set between base 101 and lower plate 102, support 104 is fixedly connected with base 101, and support 104 is slidably connected with lower plate 102.

[0048] The base 101 is the basic part of the whole tooling, which provides a stable support platform. A placing platform is arranged on the base 101 for fixing or placing the battery piece to be tested.

[0049] The lower drop plate 102 is used to directly act on the battery piece, and is a key component for simulating the hidden crack condition. The lower drop plate 102 is located above the placing platform, and the side facing the placing platform is provided with a plurality of protruding pressing blocks 103. The design surface of the pressing block 103 is spherical, which helps to generate more uniform pressure distribution on the battery piece, while simulating various stress conditions that may be encountered in the real environment, and simulating the impact of external force (such as hail). By adjusting the number, position of the pressing block 103 and the falling height of the lower drop plate 102, different hidden crack conditions can be simulated.

[0050] The bracket 104 connects the base 101 and the lower drop plate 102, and ensures that the lower drop plate 102 can move smoothly in the vertical direction. The bracket 104 is fixedly connected with the base 101, and the connection between the bracket 104 and the lower drop plate 102 is slidable, so that the lower drop plate 102 can move up and down along the bracket 104 to press test the battery piece placed below. The design of the bracket 104 ensures the stability during the dropping process, provides guidance for the falling of the lower drop plate 102, and avoids test errors caused by instability of the device itself.

[0051] The use method of the tooling is as follows: first, place the battery piece to be tested on the placing platform, and then make the lower drop plate 102 fall from a predetermined height to simulate the stress that the battery piece may suffer during transportation, installation or use. The battery piece impacted by the lower drop plate 102 can be used for subsequent observation, recording and other related performance detection.

[0052] In the embodiment, by arranging the placing platform on the base 101, arranging the lower drop plate 102 at the corresponding position of the placing platform, and arranging the spherical pressing block 103 on the lower drop plate 102, the impact of external force on the battery piece can be simulated. The bracket 104 connects the base 101 and the lower drop plate 102, and guides the lower drop plate 102, to ensure the accuracy of the impact of the lower drop plate 102. The hidden crack simulation tooling 100 has simple structure, low manufacturing cost, single connection relationship of each component, small fault risk, and is convenient for maintenance and repair.

[0053] In some embodiments, a cover plate 112 is arranged on the surface of the lower drop plate 102 away from the placement platform. The cover plate 112 is a cover-shaped structure arranged on the surface of the lower drop plate 102 away from the placement platform. The cover plate 112 is detachably connected with the lower drop plate 102. The cover plate 112 can protect the parts connected on the lower drop plate 102 from external force, and the cover plate 112 can be detached, which is convenient for operation and maintenance of the parts connected on the lower drop plate 102. At the same time, the cover plate 112 covers the lower drop plate 102, avoiding the exposure of the parts connected on the lower drop plate 102, and making the appearance more beautiful.

[0054] It can be understood that a nameplate indicating the mass of the lower drop plate 102 can be arranged on the lower drop plate 102 or the cover plate 112, which is convenient for the operator to estimate the force of the lower drop plate 102.

[0055] Example Two

[0056] In some embodiments, the pressing blocks 103 are evenly arranged on the surface of the lower drop plate 102 facing the placement platform.

[0057] The specific distribution of the pressing blocks 103 can be equidistant distribution, that is, the bottom surface of the lower drop plate 102 is divided into several small areas of equal area, and one pressing block 103 is arranged in each small area. It can also be matrix distribution, that is, the pressing blocks 103 are arranged in the form of a matrix to form rows and columns, and the pressing blocks 103 in each row and each column are equidistant to ensure that the distance between each pressing block 103 is equal. It can also be concentric circle distribution, that is, the pressing blocks 103 are arranged on the bottom surface of the lower drop plate 102 in the form of concentric circles, and the number of pressing blocks 103 on each circle can gradually increase or decrease. It can also be other uniform distribution, which is not limited here.

[0058] The uniform distribution of the pressing blocks 103 can ensure that the pressure applied on the battery piece is more uniform, avoiding unnatural cracks or damage caused by excessive local pressure. This helps to more realistically simulate the stress distribution that the battery piece may encounter in actual use, thereby improving the accuracy and reliability of the test.

[0059] In some embodiments, the pressing blocks 103 are detachably connected with the lower drop plate 102. The pressing blocks 103 and the lower drop plate 102 can be connected by thread connection, buckle connection, magnetic attraction connection, bolt connection, etc., or other connection modes convenient for disassembly, which is not limited here.

[0060] Positioning holes are arranged on the lower drop plate 102 to ensure that the pressing blocks 103 can be accurately positioned when connected. Then, the pressing blocks 103 and the lower drop plate 102 are connected by nuts, buckles, magnets, pins, etc. to ensure the reliability of the connection.

[0061] The pressing block 103 is detachably connected with the lower ram 102, so that the weight, shape and connection position of the pressing block 103 can be changed according to different test requirements, thereby improving the applicability of the device.

[0062] Example Three

[0063] As shown in Figure 4 some embodiments, the bracket 104 is provided with a track 105, and the lower ram 102 is provided with a sliding block 106 matched with the track 105.

[0064] The track 105 is installed on the bracket 104 and is usually arranged in a vertical direction to ensure that the lower ram 102 can move along a vertical path. The sliding block 106 is installed at a corresponding position of the lower ram 102 and is matched with the track 105 on the bracket 104. The sliding block 106 can freely slide on the track 105 while maintaining the stability of the lower ram 102.

[0065] The track 105 better guides the lower ram 102, ensures the falling direction of the lower ram 102, ensures the vertical movement of the lower ram 102, avoids lateral deviation, and improves the accuracy of the applied pressure. Meanwhile, the cooperation of the track 105 and the sliding block 106 reduces friction and prolongs the service life of the track 105 and the sliding block 106. An appropriate lubricant can be added between the track 105 and the sliding block 106 to better reduce friction.

[0066] Example Four

[0067] As shown in Figure 2 and 3 some embodiments, the placing platform is provided with a retaining ring 107, and the retaining ring 107 is arranged around the placing platform.

[0068] The retaining ring 107 is installed around the placing platform to form a closed structure. The retaining ring 107 can be fixed or detachable for easy installation and maintenance. The height of the retaining ring 107 needs to be less than the distance by which the pressing block 103 protrudes from the lower ram 102 to avoid blocking the falling of the lower ram 102.

[0069] During the hidden crack test, the battery piece may produce fragments or tiny splashes. The retaining ring 107 can effectively block these fragments to prevent injury to the operator, reduce the occurrence of accidents, and improve the safety of the test process.

[0070] Example Five

[0071] As shown in Figures 1 to 4 some embodiments, a soft cushion plate 108 is laid on the placing platform.

[0072] The pad 108 is a plate of uniform thickness that is laid flat to cover the placement platform. Typically, the size of the pad 108 should be greater than or equal to the size of the placement platform to ensure that the solar cells are completely placed on the pad 108 without any parts exposed outside the platform.

[0073] During use, the battery cells are placed on the soft pad 108, avoiding direct contact with the placement platform. This effectively protects the battery cells and reduces damage caused by uneven hardness or surface roughness of the placement platform. The soft pad 108 can be made of elastic materials such as high-density sponge, rubber, or silicone. The soft pad 108 can be secured to the placement platform using Velcro, facilitating easy removal and replacement.

[0074] Example Six

[0075] like Figures 1 to 3 As shown, in some embodiments, the bracket 104 is provided with a scale 109.

[0076] The graduation 109 is typically positioned vertically on the bracket 104 to ensure precise control of the displacement of the lowering plate 102 during its downward movement. Specifically, the graduation 109 can be directly engraved on the metal surface of the bracket 104 to ensure its permanence and stability. Alternatively, a high-quality adhesive graduation 109 ruler can be used to fix the graduation 109 to the bracket 104 for easy replacement and adjustment. Alternatively, durable paint can be used to spray the graduation 109 lines onto the surface of the bracket 104 to ensure the graduation 109 lines are not easily worn. Other marking methods are also possible and are not limited here.

[0077] Specifically, the content of scale 109 can be the height above the placement platform, the acceleration that can be achieved when falling from that height onto the placement platform, or other physical parameters, which are not limited here.

[0078] On the one hand, scale 109 can accurately indicate the displacement distance of the impact plate 102, ensuring that the impact position and force are consistent in each test, thus standardizing the testing process and improving the repeatability of test results. On the other hand, scale 109 allows operators to quickly read and align the scale, saving adjustment time and improving testing efficiency.

[0079] Example Seven

[0080] like Figure 3 As shown, in some embodiments, a latch 110 is provided on the bracket 104, and a buckle 111 adapted to the latch 110 is provided on the lower plate 102.

[0081] The lock buckle 110 is arranged on the support 104, and specifically arranged at a position far from the base 101. The lower plate 102 is provided with a buckle head 111 matched with the lock buckle 110. When the lock buckle 110 and the buckle head 111 are buckled, the lower plate 102 can be fixed at the position, facilitating the operator to take and place the battery piece on the placing platform.

[0082] The buckling between the lock buckle 110 and the buckle head 111 can be in the form of hooking, buckling, bolt or other forms. Specifically, the lock buckle 110 and the buckle head 111 are arranged in the form of hooking. The lock buckle 110 is arranged as a protrusion, and the buckle head 111 is arranged as a hook facing the direction of the lock buckle 110. When the buckle head 111 is buckled on the protrusion, the lock buckle 110 and the buckle head 111 are buckled, and the lower plate 102 is fixed at the position. When the buckle head 111 is moved to make the buckle head 111 separate from the protrusion, the buckling between the lock buckle 110 and the buckle head 111 is released, and the lower plate 102 falls.

[0083] It can be understood that according to the size of the lower plate 102 and the test requirement, one or more lock buckles 110 can be arranged to ensure the stability and accurate positioning of the lower plate 102.

[0084] Through the cooperation of the lock buckle 110 and the buckle head 111, the height of the lower plate 102 can be accurately controlled, the position of each test can be ensured to be consistent, the repeatability of the test can be improved, and the operator can also take and place the battery piece conveniently.

[0085] Example Eight

[0086] As shown in Figure 5 In some embodiments, at least three supporting legs 113 are arranged on the surface of the base 101 facing away from the placing platform.

[0087] The number of supporting legs 113 is usually three or four, and the number of supporting legs 113 can be increased according to the actual use. The supporting legs 113 are point supports, and compared with the full-surface support of the bottom surface of the base 101, the machining precision requirement of the bottom surface of the base 101 is low, which is beneficial to saving production cost. The at least three supporting legs 113 can form a stable support point, so that the base 101 can be kept stable on different grounds, and the device can be prevented from shaking or tilting during the impact test. The device can be kept stable during use, and the test result can be prevented from being affected by the instability of the base 101.

[0088] By arranging multiple supporting legs 113, the device can be used not only on flat ground, but also on ground with a certain slope or irregular ground. The height of each supporting leg 113 can be adjusted to keep stable. This makes the device work effectively in different areas of the factory, warehouses, transportation sites and other variable environments, and expands the application range of the device.

[0089] The above merely describes the preferred embodiments of the present application, and is not intended to limit the present application, and any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A hidden crack simulation tool, characterized by, The utility model relates to a battery piece pressing device, including: a base, a placing platform for placing battery pieces is arranged on the base; a lower pressing plate is arranged above the placing platform, a plurality of protruding pressing blocks are arranged on the surface of the lower pressing plate facing the placing platform, and the surface of the pressing blocks facing the placing platform is spherical; a support is arranged between the base and the lower pressing plate, the support is fixedly connected with the base, and the support is slidably connected with the lower pressing plate.

2. The crack simulation tooling of claim 1, wherein, The pressing blocks are uniformly arranged on the surface of the lower pressing plate facing the placing platform.

3. The crack simulation tooling of claim 1, wherein, A track is arranged on the support, and a sliding block matched with the track is arranged on the lower pressing plate.

4. The crack simulation tooling of claim 1, wherein, A retaining ring is arranged on the placing platform, and the retaining ring is arranged in a ring around the placing platform.

5. The crack simulation tooling of claim 1, wherein, A soft cushion plate is arranged on the placing platform.

6. The crack simulation tooling of claim 1, wherein, A scale is arranged on the support.

7. The crack simulation tooling of claim 1, wherein, A lock catch is arranged on the support, and a buckle head matched with the lock catch is arranged on the lower pressing plate.

8. The crack simulation tooling of claim 1, wherein, The pressing blocks are detachably connected with the lower pressing plate.

9. The crack simulation tooling of claim 1, wherein, A cover plate is arranged on the surface of the lower pressing plate away from the placing platform.

10. The crack simulation tooling of claim 1, wherein, At least three supporting legs are arranged on the surface of the base away from the placing platform.

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