Positioning device for detecting alignment degree of lithium battery cell lamination

Abstract

The utility model relates to the technical field of lithium battery detection, and discloses a positioning device for lithium battery core lamination detection alignment, which comprises a bottom plate, a side plate is fixedly mounted at one corner of the top of the bottom plate, the side plate is L-shaped, the corner of the side plate coincides with the corner of the bottom plate, and the bottom plate is provided with a positioning groove. A first positioning assembly and a second positioning assembly are arranged at the top of the bottom plate, the first positioning assembly corresponds to the transverse straight part of the side plate, the second positioning assembly corresponds to the transverse straight part of the side plate, a plurality of electric chips stacked up and down are arranged at the top of the bottom plate, one corner of each electric chip is attached to the corner of the inner wall of the side plate, and the other corner of each electric chip is attached to the corner of the inner wall of the side plate. The first positioning assembly is located at one side, far away from the side plate, of the plurality of electric chips, and the second positioning assembly is located at one end, far away from the side plate, of the plurality of electric chips. Therefore, a plurality of stacked battery cells can be conveniently detected.

Description

Technical Field

[0001] The utility model belongs to the technical field of lithium battery detection, in particular to a positioning device for detecting the alignment of lithium battery core stacks. Background Art

[0002] With the explosive growth of the new energy vehicle industry, the demand for power lithium batteries has also increased, and the product quality of lithium batteries has also been increasingly valued by people. The alignment detection of lithium batteries is an important part of the lithium battery quality inspection process. When the cathode of the lithium battery is not covered by the anode, the lithium battery will produce lithium precipitation during the charging and discharging process. When the lithium dendrites pierce the diaphragm between the anode and the cathode, it will cause a battery short circuit and cause the risk of battery fire. During the inspection, multiple lithium battery cells will be stacked together and manually calibrated and aligned by the staff. This method is inefficient and cannot accurately complete the unified alignment of multiple battery cells. For this reason, the present application proposes a positioning device for detecting the alignment of lithium battery cell stacks. Utility Model Content

[0003] In order to solve the problems raised in the above-mentioned background technology, the utility model provides the following technical solutions: a positioning device for detecting the alignment of lithium battery cell stacks, comprising a base plate, a side plate fixedly installed at a corner of the top of the base plate, the side plate is L-shaped, the corner of the side plate coincides with the corner of the base plate, a first positioning component and a second positioning component are arranged on the top of the base plate, the first positioning component corresponds to the horizontal and vertical portion of the side plate, the second positioning component corresponds to the horizontal and vertical portion of the side plate, a plurality of electric chips stacked up and down are arranged on the top of the base plate, one of the corners of the plurality of electric chips is fitted with the inner wall corner of the side plate, the first positioning component is located on a side of the plurality of electric chips away from the side plate, and the second positioning component is located at an end of the plurality of electric chips away from the side plate.

[0004] Preferably, the first positioning assembly includes a fixed plate, a movable plate and a hydraulic rod, the fixed plate is fixedly mounted on the top of the base plate, the movable plate is located on the side of the fixed plate, a connecting rod is fixedly mounted at the center position of the movable plate close to the side of the fixed plate, the hydraulic rod is fixedly mounted on the side of the fixed plate away from the movable plate, the telescopic end of the hydraulic rod passes through the fixed plate, and a slot is opened at the telescopic end of the hydraulic rod, the connecting rod is movably inserted into the slot at one end of the hydraulic rod, a spring is sleeved on the connecting rod, and both ends of the spring are respectively fixedly connected to the side of the movable plate and the output end of the hydraulic rod.

[0005] Preferably, through holes are provided on the sides of the fixed plate and above and below the hydraulic rod, two positioning rods are fixedly installed on the side of the movable plate close to the fixed plate, and the two positioning rods on the side of the movable plate are movably inserted into the two through holes of the fixed plate respectively.

[0006] Preferably, the structure of the second positioning assembly is the same as that of the first positioning assembly.

[0007] Preferably, rubber pads are fixedly mounted on the side surfaces of the movable plates in the first positioning assembly and the second positioning assembly.

[0008] Preferably, the top of the movable plate and the top of the side plate are at the same level.

[0009] Compared with the prior art, the beneficial effects of the utility model are:

[0010] The first positioning assembly and the second positioning assembly cooperate with the side plate on the bottom plate to position and align multiple stacked battery cells to be tested, so that the stacked battery cells are accurately aligned up and down, thereby facilitating the testing of the multiple stacked battery cells. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0012] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0013] Figure 2 It is a partial structural diagram of the utility model;

[0014] Figure 3 It is a schematic diagram of a partial top view of the structure of the utility model;

[0015] Figure 4 It is a structural schematic diagram of the first positioning component of the utility model;

[0016] Figure 5 It is a schematic cross-sectional structure diagram of the first positioning component of the utility model;

[0017] In the figure: 1, bottom plate; 2, side plate; 3, first positioning assembly; 4, second positioning assembly; 5, electric chip; 31, fixed plate; 32, movable plate; 33, hydraulic rod; 34, slot; 35, connecting rod; 36, spring; 37, through hole; 38, positioning rod. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments; based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0019] Depend on Figure 1-5 The utility model includes a bottom plate 1, a side plate 2 is fixedly installed at a corner of the top of the bottom plate 1, the side plate 2 is L-shaped, the corner of the side plate 2 coincides with the corner of the bottom plate 1, a first positioning component 3 and a second positioning component 4 are arranged on the top of the bottom plate 1, the first positioning component 3 corresponds to the horizontal and vertical parts of the side plate 2, the second positioning component 4 corresponds to the horizontal and vertical parts of the side plate 2, a plurality of stacked electric chips 5 are arranged on the top of the bottom plate 1, one of the corners of the plurality of electric chips 5 is fitted with the inner wall corner of the side plate 2, the first positioning component 3 is located on a side of the plurality of electric chips 5 away from the side plate 2, the second positioning component 4 is located at an end of the plurality of electric chips 5 away from the side plate 2, the first positioning component 3 and the second positioning component 4 can be used to align the stacked electric chips 5 on the bottom plate 1.

[0020] At the same time, the first positioning assembly 3 includes a fixed plate 31, a movable plate 32 and a hydraulic rod 33. The fixed plate 31 is fixedly installed on the top of the bottom plate 1, the movable plate 32 is located on the side of the fixed plate 31, and a connecting rod 35 is fixedly installed at the center position of the movable plate 32 close to the side of the fixed plate 31. The hydraulic rod 33 is fixedly installed on the side of the fixed plate 31 away from the movable plate 32. The telescopic end of the hydraulic rod 33 passes through the fixed plate 31, and a slot 34 is opened at the telescopic end of the hydraulic rod 33. The connecting rod 35 is movably inserted into the slot 34 at one end of the hydraulic rod 33, and a spring 36 is sleeved on the connecting rod 35. The two ends of the spring 36 are respectively fixedly connected to the side of the moving plate 32 and the output end of the hydraulic rod 33. When the hydraulic rod 33 pushes the moving plate 32, the moving plate 32 will approach the direction of the electric chip 5. When the moving plate 32 contacts the electric chip 5, the electric chip 5 is squeezed and pressed against the inner wall of the side plate 2. When the moving plate 32 cannot push the electric chip 5 to move, the connecting rod 35 on the side of the moving plate 32 will move into the slot 34 on the telescopic end of the hydraulic rod 33, and the spring 36 on the connecting rod 35 will be compressed together, thereby preventing the hydraulic rod 33 from pushing the moving plate 32 to damage the electric chip 5.

[0021] In addition, through holes 37 are provided on the side of the fixed plate 31 and above and below the hydraulic rod 33. Two positioning rods 38 are fixedly installed on the side of the movable plate 32 close to the fixed plate 31, and the two positioning rods 38 on the side of the movable plate 32 are movably inserted into the two through holes 37 on the fixed plate 31 respectively. The positioning rods 38 pass through the through holes 37 on the fixed plate 31, which can make the hydraulic rod 33 push the movable plate 32 to move more stably.

[0022] Furthermore, the structure of the second positioning component 4 is the same as that of the first positioning component 3 , so that the second positioning component 4 can press the side of the electric chip 5 like the first positioning component 3 , so that the stacked electric chips 5 can be neatly aligned up and down.

[0023] Furthermore, rubber pads are fixedly installed on the sides of the movable plates 32 in the first positioning assembly 3 and the second positioning assembly 4 . The rubber pads can protect the electric chip 5 when the movable plates 32 squeeze the electric chip 5 .

[0024] In addition, the top of the movable plate 32 and the top of the side plate 2 are at the same level, so that the first positioning assembly 3 and the second positioning assembly 4 can squeeze and align the stacked electrical chips 5 of similar height on the side plate 2.

[0025] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0026] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A positioning device for detecting the alignment of a lithium battery cell stack, comprising a bottom plate (1), characterized in that: A side plate (2) is fixedly mounted at a corner of the top of the bottom plate (1); the side plate (2) is L-shaped; the corner of the side plate (2) coincides with the corner of the bottom plate (1); a first positioning component (3) and a second positioning component (4) are arranged on the top of the bottom plate (1); the first positioning component (3) corresponds to the horizontal vertical portion of the side plate (2); the second positioning component (4) corresponds to the horizontal vertical portion of the side plate (2); a plurality of stacked electrical chips (5) are arranged on the top of the bottom plate (1); one of the corners of the plurality of electrical chips (5) is fitted with the inner wall corner of the side plate (2); the first positioning component (3) is located on a side of the plurality of electrical chips (5) away from the side plate (2); and the second positioning component (4) is located on an end of the plurality of electrical chips (5) away from the side plate (2).

2. A positioning device for detecting the alignment of lithium battery cell stacks according to claim 1, characterized in that: The first positioning assembly (3) comprises a fixed plate (31), a movable plate (32) and a hydraulic rod (33); the fixed plate (31) is fixedly mounted on the top of the base plate (1); the movable plate (32) is located on the side of the fixed plate (31); a connecting rod (35) is fixedly mounted at the center position of the movable plate (32) close to the side of the fixed plate (31); the hydraulic rod (33) is fixedly mounted on the side of the fixed plate (31) away from the movable plate (32); the telescopic end of the hydraulic rod (33) passes through the fixed plate (31); a slot (34) is provided at the telescopic end of the hydraulic rod (33); the connecting rod (35) is movably inserted into the slot (34) at one end of the hydraulic rod (33); a spring (36) is sleeved on the connecting rod (35); and the two ends of the spring (36) are respectively fixedly connected to the side of the movable plate (32) and the output end of the hydraulic rod (33).

3. A positioning device for detecting alignment of lithium battery cell stacks according to claim 2, characterized in that: Through holes (37) are provided on the side of the fixed plate (31) and above and below the hydraulic rod (33); two positioning rods (38) are fixedly installed on the side of the movable plate (32) close to the fixed plate (31); and the two positioning rods (38) on the side of the movable plate (32) are movably inserted into the two through holes (37) on the fixed plate (31), respectively.

4. A positioning device for detecting the alignment of lithium battery cell stacks according to claim 3, characterized in that: The structure of the second positioning component (4) is the same as that of the first positioning component (3).

5. A positioning device for detecting the alignment of lithium battery cell stacks according to claim 4, characterized in that: Rubber pads are fixedly mounted on the side surfaces of the movable plates (32) in the first positioning assembly (3) and the second positioning assembly (4).

6. A positioning device for detecting the alignment of lithium battery cell stacks according to claim 5, characterized in that: The top of the movable plate (32) and the top of the side plate (2) are located at the same level.

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