Test tool and test equipment

Abstract

The utility model discloses a testing tool and testing equipment, the testing tool is used for a battery piece and comprises a plate body, the plate body is provided with a mounting hole, and the battery piece is suitable for being arranged on one side of the plate body in the thickness direction and is suitable for being opposite to the mounting hole; and the positioning structure is used for fixing the battery piece on the plate body. According to the test tool provided by the utility model, the condition of the battery piece during welding can be conveniently detected, the condition of the battery piece when the welding quality of the battery piece is the best can be obtained through subsequent detection and analysis of the welding quality of the battery piece under different conditions, and the condition of the battery piece is applied to production and manufacturing, so that the production efficiency is improved. Therefore, improvement of welding process parameters is facilitated, the welding quality of the battery piece is improved, and the yield of production is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of photovoltaic component production, in particular to a testing tool and testing equipment. Background Art

[0002] During the cell stringing process, a heat source is required to heat the solder ribbon and cells, and then a press is applied to form the assembly. The cell condition during welding, such as temperature and temperature uniformity, can affect the quality of the cell welding. Currently, the light source on the stringing machine cannot directly test the cells, and the impact on the test cannot be considered. Utility Model Content

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides a testing fixture that facilitates the detection of the battery cell welding condition, thereby facilitating the improvement of welding process parameters, improving the quality of battery cell welding, and increasing the production yield rate.

[0004] The utility model also provides a testing device, which includes the above-mentioned testing tool.

[0005] According to the test fixture of the embodiment of the present invention, it is used for battery cells and includes: a plate body, which is provided with a mounting hole, and the battery cell is suitable for being arranged on one side of the plate body in the thickness direction and suitable for being opposite to the mounting hole; a positioning structure, which is used to fix the battery cell on the plate body.

[0006] According to the test fixture of the embodiment of the present invention, a mounting hole is provided on the board body, and the battery cell is suitable for being arranged on one side of the board body in the thickness direction and suitable for being opposite to the mounting hole; the positioning structure is used to fix the battery cell on the board body, so as to facilitate the detection of the condition of the battery cell during welding, and through subsequent detection and analysis of the quality of battery cell welding under different conditions, the battery cell condition when the battery cell welding quality is the best can be obtained, and this battery cell condition is applied to production and manufacturing, so as to facilitate the improvement of welding process parameters, improve the quality of battery cell welding, and improve the production yield.

[0007] In some embodiments of the present invention, the positioning structure includes a first adsorption hole provided on the plate body, and the first adsorption holes are multiple and spaced apart along the circumferential direction of the mounting hole, and are used for adsorbing the battery cell.

[0008] In some embodiments of the present invention, the mounting hole has a plurality of reinforcing ribs spaced apart along the length direction of the mounting hole, and the reinforcing ribs extend along the width direction of the mounting hole and are connected to the inner wall of the mounting hole at both ends, so as to divide the mounting hole into a plurality of sub-holes, each of the sub-holes being suitable for being arranged opposite to one of the battery cells.

[0009] In some embodiments of the present invention, the positioning structure includes a plurality of spaced-apart second adsorption holes provided on the reinforcing ribs, for adsorbing the battery cells.

[0010] In some embodiments of the present invention, the plurality of second adsorption holes on the same reinforcing rib are divided into at least two groups along the length direction of the mounting hole, and each group includes a plurality of second adsorption holes spaced apart along the width direction of the mounting hole.

[0011] In some embodiments of the present invention, the positioning structure includes: a press, the press is connected to the board body, and the battery cell is suitable for being located between the press and the board body.

[0012] In some embodiments of the present invention, one side of the plate body in the thickness direction has a lower baffle for supporting and installing the press.

[0013] In some embodiments of the present invention, a side of the plate body facing away from the pressing tool has a mounting groove, and a mounting magnet is provided in the mounting groove for adsorbing the pressing tool.

[0014] In some embodiments of the present invention, the test fixture further includes: a side panel, which is arranged around the plate body and extends along the thickness direction of the plate body.

[0015] The testing equipment according to an embodiment of the present invention includes: the above-mentioned testing tooling; a heat source, which is located on the side of the plate body facing the battery cell in the thickness direction; a temperature tester, which is located on the side of the plate body away from the heat source, and the mounting hole and the temperature tester are arranged relative to each other in the thickness direction of the plate body.

[0016] According to the test equipment of the embodiment of the present invention, by setting the above-mentioned test tooling, a mounting hole is provided on the board body, and the battery cell is suitable for being arranged on one side of the thickness direction of the board body and suitable for being opposite to the mounting hole; the positioning structure is used to fix the battery cell on the board body, so as to facilitate the detection of the condition of the battery cell during welding, and through subsequent detection and analysis of the quality of battery cell welding under different conditions, the battery cell condition when the battery cell welding quality is the best can be obtained, and this battery cell condition is applied to production and manufacturing, so as to facilitate the improvement of welding process parameters, improve the quality of battery cell welding, and improve the production yield.

[0017] Additional aspects and advantages of the present invention will be given in part in the following description and will become apparent from the following description or learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0019] Figure 1 is a perspective view of a test device according to an embodiment of the present utility model;

[0020] Figure 2 is a three-dimensional diagram of a test tool according to an embodiment of the present utility model;

[0021] Figure 3 It is a rear view of the test tool according to an embodiment of the present utility model.

[0022] Reference numerals:

[0023] 100. Testing equipment;

[0024] 10. Test tooling;

[0025] 1. Plate body; 11. Mounting hole; 111. Sub-hole; 12. Reinforcement rib; 13. Mounting slot; 14. Lower baffle;

[0026] 2. Positioning structure; 21. First adsorption hole; 22. Second adsorption hole;

[0027] 3. Side panels;

[0028] 20. Heat source;

[0029] 30. Temperature tester. DETAILED DESCRIPTION

[0030] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0031] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, features defined as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0032] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0033] Reference below Figure 1-Figure 3 A test fixture 10 according to an embodiment of the present invention is described.

[0034] like Figure 1-Figure 3 As shown, a test fixture 10 according to an embodiment of the present invention is used for a battery cell and includes: a plate body 1 and a positioning structure 2 .

[0035] Specifically, refer to Figure 2 and Figure 3 The board body 1 is provided with a mounting hole 11 , and the battery cell is suitable for being arranged on one side of the board body 1 in the thickness direction and suitable for being opposite to the mounting hole 11 .

[0036] It can be understood that since the mounting hole 11 is provided on the plate body 1, the mounting hole 11 passes through the plate body 1 along the thickness direction of the plate body 1, and the battery cell is suitable for being arranged on one side of the thickness direction of the plate body 1 and suitable for being opposite to the mounting hole 11, and the detection equipment can be arranged on the side of the thickness direction of the plate body 1 away from the battery cell. Due to the setting of the mounting hole 11, the detection equipment can detect the battery cell welding strip, thereby facilitating the detection of the battery cell welding condition. Through subsequent detection and analysis of the quality of battery cell welding under different conditions, the battery cell condition when the battery cell welding quality is the best can be obtained, and this battery cell condition is applied to production and manufacturing, thereby facilitating the improvement of welding process parameters (electrode diameter, welding current, number of welding layers, power supply type and polarity, temperature, quantity (weight, volume, etc.), pressure, pH, stirring speed, time, other parameters, etc.), improving the quality of battery cell welding, and improving the production yield.

[0037] Furthermore, the testing equipment can also detect the overall condition of the cell. In this case, since there is no need to detect the condition of the solder ribbon, the cell does not need to have a solder ribbon, so the test fixture 10 is compatible with the presence or absence of solder ribbons, thereby improving the compatibility of the test fixture 10. By subsequently detecting and analyzing the cell breakage and hidden cracks under different conditions, the cell condition when the cell is free of breakage and hidden cracks can be obtained. This cell condition can be applied to production, thereby facilitating the improvement of process parameters, reducing the occurrence of cell breakage and hidden cracks, and further improving the production yield.

[0038] Therefore, the testing tool 10 of the present invention can not only test the condition of the soldering ribbon during battery cell welding, but also detect the overall condition of the battery cell, thereby being compatible with different tests and improving the compatibility of the testing tool 10.

[0039] For example, in the present invention, the detection equipment is a temperature tester 30, which is convenient for detecting the temperature of the battery cell during welding. Through subsequent detection and analysis of the quality of battery cell welding under different welding temperatures and different temperature uniformities, the battery cell welding temperature and temperature uniformity when the battery cell welding quality is the best and when the battery cell has no broken pieces or hidden cracks can be obtained. This battery cell welding temperature and temperature uniformity are applied to production and manufacturing, which facilitates the improvement of welding process parameters, improves the quality of battery cell welding, and improves the production yield.

[0040] Furthermore, if Figure 2 and Figure 3 As shown, the positioning structure 2 is used to fix the battery cell on the board body 1. This prevents the battery cell from moving during testing, thereby improving the accuracy of the test.

[0041] According to the test fixture 10 of the embodiment of the present invention, a mounting hole 11 is provided on the board body 1, and the battery cell is suitable for being arranged on one side of the thickness direction of the board body 1 and suitable for being opposite to the mounting hole 11; the positioning structure 2 is used to fix the battery cell on the board body 1, so as to facilitate the detection of the condition of the battery cell during welding. After subsequent detection and analysis of the quality of battery cell welding under different conditions, the battery cell condition when the battery cell welding quality is the best can be obtained, and this battery cell condition is applied to production and manufacturing, so as to facilitate the improvement of welding process parameters, improve the quality of battery cell welding, and improve the production yield.

[0042] In some embodiments of the present invention, Figure 2 As shown, the positioning structure 2 includes a first adsorption hole 21 provided on the board body 1. The first adsorption holes 21 are arranged in a plurality of intervals along the circumferential direction of the mounting hole 11 and are used to adsorb the battery cells.

[0043] It can be understood that fixing the battery cells by adsorbing the battery cells not only improves the installation reliability of the battery cells on the test fixture 10, but also makes the test fixture 10 compatible with the situation where the battery cells are fixed without a press, thereby improving the applicability of the test fixture 10. At the same time, fixing the battery cells by adsorbing the battery cells makes it less likely for the battery cells to be broken or cracked during the test process.

[0044] Furthermore, the positioning structure 2 further includes a vacuum generating device (not shown), which can be provided at one end of the plate body 1 in the longitudinal direction. The vacuum generating device is connected to the first adsorption hole 21 to facilitate adsorption of the battery cell.

[0045] In some embodiments of the present invention, Figure 2 As shown, the mounting hole 11 has a plurality of reinforcing ribs 12 spaced apart along the length direction of the mounting hole 11. The reinforcing ribs 12 extend along the width direction of the mounting hole 11 and are connected to the inner wall of the mounting hole 11 at both ends, and are used to divide the mounting hole 11 into a plurality of sub-holes 111, each sub-hole 111 being suitable for being arranged opposite to a battery cell.

[0046] It is understood that by dividing the mounting hole 11 into multiple sub-holes 111 through the multiple reinforcing ribs 12, the test fixture 10 can test multiple battery cells simultaneously, thereby improving test efficiency. The provision of the reinforcing ribs 12 provides support between adjacent battery cells, thereby improving the installation stability of the battery cells on the test fixture 10.

[0047] For example, Figure 2 and Figure 3In the example shown, there are four reinforcing ribs 12 and five sub-holes 111, but the present invention is not limited thereto. The number of reinforcing ribs 12 and the number of sub-holes 111 may be other numbers, such as 3, 7, 8, or 10. The number of sub-holes 111 is the number of reinforcing ribs 12 plus one.

[0048] In some embodiments of the present invention, Figure 2 As shown, the positioning structure 2 includes a plurality of spaced-apart second adsorption holes 22 provided on the reinforcing rib 12 for adsorbing the battery cells, thereby further improving the installation reliability of the battery cells on the test fixture 10.

[0049] In some embodiments of the present invention, Figure 2 As shown, the multiple second adsorption holes 22 on the same reinforcing rib 12 are divided into at least two groups along the length direction of the mounting hole 11 , and each group includes multiple second adsorption holes 22 spaced apart along the width direction of the mounting hole 11 .

[0050] It can be understood that two adjacent battery cells correspond to two groups of second adsorption holes 22, one group of second adsorption holes 22 is used to adsorb one of the battery cells, and the other group of second adsorption holes 22 is used to adsorb the other battery cell. In this way, both adjacent battery cells can be adsorbed through the second adsorption holes 22, thereby further improving the installation stability of the battery cells on the test tooling 10.

[0051] In some embodiments of the present invention, the positioning structure 2 includes: a press, the press is connected to the panel body 1, and the battery cell is suitable for being located between the press and the panel body 1.

[0052] It is understood that the positioning structure 2 includes the first adsorption hole 21 and the second adsorption hole 22. When the battery cell and the panel body 1 are not suitable for adsorption connection, the battery cell can be fixed by a press, thereby increasing the applicability of the test fixture 10. At the same time, the battery cell can also be fixed by at least two of the press, the first adsorption hole 21, and the second adsorption hole 22 at the same time, thereby further improving the installation stability of the battery cell on the test fixture 10.

[0053] In some embodiments of the present invention, Figure 2 As shown, a lower baffle 14 is provided on one side of the plate body 1 in the thickness direction for supporting and installing the press. This facilitates quick positioning and installation of the press, while improving the installation stability of the press on the plate body 1, thereby ensuring the limiting and fixing effect of the battery cell.

[0054] In some embodiments of the present invention, Figure 2 and Figure 3As shown, the side of the board body 1 facing away from the press has a mounting slot 13, within which a mounting magnet is positioned for attracting the press. It is understood that the provision of mounting slot 13 not only reduces the weight of the board body 1, thereby contributing to the lightweighting of the test fixture 10, but also facilitates the installation of the magnet. The magnet's magnetic attraction to the press improves the stability of the press's installation on the board body 1, further ensuring the effective positioning and fixation of the battery cells.

[0055] In addition, through the magnetic attraction of the magnet on the press, presses of different shapes can be fixed on the plate body 1, thereby further increasing the compatibility and applicability of the test fixture 10.

[0056] Furthermore, if Figure 2 and Figure 3 As shown, the mounting grooves 13 are multiple and spaced apart along the circumferential direction of the mounting hole 11, thereby further reducing the weight of the board body 1, which is beneficial to the lightweight testing tool 10. At the same time, multiple magnets can also be installed, further improving the installation stability of the press on the board body 1, thereby further ensuring the limiting and fixing effect of the battery cell.

[0057] For example, Figure 3 In the example shown, there are ten mounting slots 13 , but the present invention is not limited thereto. The number of mounting slots 13 may be other numbers, such as 3, 4, 11 or 12.

[0058] In some embodiments of the present invention, Figure 2 and Figure 3 As shown, the test fixture 10 further includes side panels 3, which are disposed around the panel body 1 and extend along the thickness direction of the panel body 1. It can be understood that the provision of the side panels 3 allows the test fixture 10 to be placed upright in multiple positions, thereby facilitating the removal and installation of battery cells at appropriate locations, thereby improving the efficiency of battery cell removal and installation.

[0059] Reference below Figure 1 A test device 100 according to an embodiment of the present invention is described.

[0060] The testing device 100 according to the embodiment of the present invention includes: the above-mentioned testing tool 10 , a heat source 20 and a temperature tester 30 .

[0061] Specifically, refer to Figure 1 The heat source 20 is located on the side of the board body 1 facing the battery cell in the thickness direction; the temperature tester 30 is located on the side of the board body 1 away from the heat source 20, and the mounting hole 11 and the temperature tester 30 are arranged relative to each other in the thickness direction of the board body 1.

[0062] It can be understood that the heat source 20 can be used to heat the battery cell and the battery cell's solder strip to achieve welding, thereby simulating the temperature during welding and restoring the real production environment. The temperature tester 30 is set to detect the overall temperature of the battery cell and the temperature uniformity of each area of ​​the battery cell. It can also detect the temperature at the battery cell solder strip and the overall temperature uniformity of the solder strip.

[0063] Therefore, by setting up the test tool 10, the heat source 20 and the temperature tester 30, it is convenient to detect the temperature during battery cell welding. Through subsequent detection and analysis of the quality of battery cell welding under different welding temperatures and different temperature uniformities, the battery cell welding temperature and temperature uniformity when the battery cell welding quality is the best and when the battery cell has no broken pieces or hidden cracks can be obtained. This battery cell welding temperature and temperature uniformity are applied to production manufacturing, which facilitates the improvement of welding process parameters, improves the quality of battery cell welding, and improves the production yield.

[0064] According to the test equipment 100 of the embodiment of the present invention, by setting the above-mentioned test tool 10, a mounting hole 11 is provided on the board body 1, and the battery cell is suitable for being arranged on one side of the thickness direction of the board body 1 and suitable for being opposite to the mounting hole 11; the positioning structure 2 is used to fix the battery cell on the board body 1, so as to facilitate the detection of the condition of the battery cell during welding. After subsequent detection and analysis of the quality of battery cell welding under different conditions, the battery cell condition when the battery cell welding quality is the best can be obtained, and this battery cell condition is applied to production and manufacturing, so as to facilitate the improvement of welding process parameters, improve the quality of battery cell welding, and improve the production yield.

[0065] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the illustrative use of the above terms does not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0066] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and purpose of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A test tool, characterized in that: For battery cells and comprising: A board body, wherein the board body is provided with a mounting hole, and the battery cell is adapted to be arranged on one side of the board body in a thickness direction and adapted to be opposite to the mounting hole; A positioning structure is used to fix the battery cell on the board body.

2. The test fixture according to claim 1, characterized in that: The positioning structure includes a plurality of first adsorption holes provided on the plate body, wherein the first adsorption holes are arranged at intervals along the circumferential direction of the mounting hole and are used for adsorbing the battery cells.

3. The test fixture according to claim 1, characterized in that: The mounting hole has a plurality of reinforcing ribs spaced apart along the length direction of the mounting hole. The reinforcing ribs extend along the width direction of the mounting hole and are connected to the inner wall of the mounting hole at both ends, so as to divide the mounting hole into a plurality of sub-holes, each of which is suitable for being arranged opposite to one of the battery cells.

4. The test fixture according to claim 3, characterized in that: The positioning structure includes a plurality of spaced-apart second adsorption holes provided on the reinforcing ribs, and is used for adsorbing the battery cells.

5. The test fixture according to claim 4, characterized in that: The plurality of second adsorption holes on the same reinforcing rib are divided into at least two groups along the length direction of the mounting hole, and each group includes a plurality of second adsorption holes spaced apart along the width direction of the mounting hole.

6. The test fixture according to claim 1, characterized in that: The positioning structure includes: A press is connected to the panel body, and the battery sheet is suitable for being located between the press and the panel body.

7. The test fixture according to claim 6, characterized in that: One side of the plate body in the thickness direction is provided with a lower baffle for supporting and installing the pressing tool.

8. The test fixture according to claim 6, characterized in that: A mounting groove is provided on a side of the plate body facing away from the pressing tool. A mounting magnet is provided in the mounting groove for adsorbing the pressing tool.

9. The test fixture according to claim 1, characterized in that: Also includes: The side panels are arranged around the plate body and extend along the thickness direction of the plate body.

10. A testing device, characterized in that: include: The test tool according to any one of claims 1 to 9; a heat source, the heat source being located on a side of the plate body facing the battery cell in a thickness direction; A temperature tester is located on a side of the plate body away from the heat source, and the mounting hole and the temperature tester are arranged relative to each other in the thickness direction of the plate body.

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