Clamping device for battery cell
The clamping device stabilizes battery cells during industrial CT inspection, preventing internal structure movement and allowing simultaneous detection of multiple cells, enhancing efficiency and reducing costs.
Patent Information
- Application Number
- CN202420084769.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-12
- Publication Date
- 2024-12-13
- Estimated Expiration
- 2034-01-12
AI Technical Summary
Existing methods for detecting battery cells using industrial CT suffer from low efficiency and high costs due to internal structure movement during tray-based detection and the need for individual clamping, which limits simultaneous inspection of multiple cells.
A clamping device with a support seat and flexible connecting members that form a clamping space for multiple battery cells, using a power structure to stabilize and compress cells during movement, allowing simultaneous inspection.
Prevents internal structure movement during detection, enabling efficient and cost-effective simultaneous inspection of multiple battery cells using industrial CT.
Smart Images
Figure CN222155270U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of battery core detection, in particular to a clamping device for a battery core. Background Art
[0002] At present, after the battery cell is manufactured, it needs to be inspected by industrial CT. Industrial CT is industrial computed tomography technology. Industrial CT can detect the internal structure of an object in a non-contact and non-destructive manner to obtain non-overlapping data and images. In the related art, there are two common ways to detect battery cells by industrial CT. The first is to place the battery cell on a tray, then move the tray and detect the battery cell on the tray by industrial CT; the second is to clamp the battery cell by a fixture, one fixture clamps one battery cell, then move the fixture and detect the battery cell by industrial CT. However, in the first method, since the battery cell is in a free state, the internal structure of the battery cell is easy to move and shift during the movement of the battery cell with the tray; in the second method, since one fixture can only clamp one battery cell, the efficiency of industrial CT detection of the battery cell is low and the cost is high. Utility Model Content
[0003] One of the main purposes of the utility model is to provide a clamping device for a battery cell, which can not only effectively prevent the internal structure of the battery cell from moving during movement, but also enable multiple battery cells to be detected by industrial CT at the same time, thereby improving the detection efficiency of the battery cells.
[0004] In order to achieve the above-mentioned purpose of the utility model, the utility model proposes a clamping device for a battery cell, including a support seat, the support seat including a first support member and a second support member connected to each other, an installation space is formed between the first support member and the second support member, a plurality of clamping members are placed in the installation space, adjacent clamping members are connected by a flexible connecting member extending from the first support member toward the second support member, and a clamping space for clamping the battery cell can be formed between the adjacent clamping members; a power structure is also provided on the support seat, the power structure is drivingly connected to the clamping member closest to the first support member, and the power structure is used to drive the clamping member close to the first support member to move toward the first support member or the second support member.
[0005] Furthermore, the power structure includes a screw, the opposite ends of which are rotatably arranged on the first support member and the second support member respectively, and the clamping member closest to the first support member is provided with a threaded hole penetrating its relative surface, and the other clamping members are provided with through holes penetrating their respective relative surfaces and coaxial with the threaded holes, the screw passes through the threaded hole and each through hole and is threadedly connected to the threaded hole.
[0006] Furthermore, the power structure also includes a drive motor, which is arranged on the first support member, and the output end of the drive motor is drive-connected to the lead screw, and the end of the lead screw facing away from the drive motor is rotatably connected to the second support member through a bearing.
[0007] Furthermore, a guide rail is provided between the first support member and the second support member, the guide rail extends along the first support member toward the second support member, and the clamping members are all slidably connected to the guide rail.
[0008] Furthermore, the guide rail is fixed on the first support member or the second support member.
[0009] Furthermore, two opposite ends of the guide rail are respectively connected and fixed to the first support member and the second support member.
[0010] Furthermore, there are two guide rails, which are respectively located at two opposite sides of the plurality of clamping members.
[0011] Furthermore, a guide rod located in the installation space is provided between the first support member and the second support member, and the opposite ends of the guide rod are respectively connected and fixed to the first support member and the second support member, and the guide rod extends along the first support member toward the second support member, and the guide rod is slidably passed through each of the clamping members.
[0012] Furthermore, there are two guide rods, and the lead screw is located between the two guide rods.
[0013] Compared with the prior art, the battery cell clamping device of the utility model has the following beneficial effects:
[0014] When the clamping device for battery cells of the utility model is in use, since each adjacent clamping member is connected by a flexible connecting member, when the power structure drives the clamping member closest to the first support member to move toward the first support member or the second support member, the flexible connecting member will drive other clamping members to move in the same direction as the clamping member closest to the first support member. When the power structure drives the clamping member closest to the first support member to move toward the first support member, and the clamping member closest to the first support member moves to a set position, each adjacent clamping member is separated so that a clamping space for clamping the battery cell is formed between each adjacent clamping member. At this time, the battery cell to be tested is placed in the clamping space of each adjacent clamping member, and then the clamping member closest to the first support member is driven by the power structure to move toward the second support member. When the clamping member closest to the second support member fits with the second support member, or the clamping member closest to the second support member fits with the clamping member placed When the battery cells between the clamping member closest to the second support member are fitted together, that is, when the clamping member closest to the second support member moves toward the second support member to a set position, the battery cells in each clamping space are clamped by the adjacent clamping members. In this way, each battery cell is in a compressed state, and the internal structure of the battery cell will not move or shift during transportation, movement, and testing to cause battery cell failure, thereby effectively preventing the internal structure of the battery cell from moving or shifting during movement. At the same time, multiple battery cells can also be inspected by industrial CT at the same time, thereby improving the inspection efficiency of the battery cells. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is a structural schematic diagram of the battery cell clamping device of the utility model;
[0016] Figure 2 This is a schematic structural diagram of the battery cell clamping device from another angle of the present invention.
[0017] Reference numerals in the accompanying drawings:
[0018] 100, first support member; 200, support column; 300, clamping member; 301, through hole; 400, battery cell; 500, second support member; 600, lead screw; 700, guide rod; 710, guide rail; 800, flexible connector; 900, bearing. DETAILED DESCRIPTION
[0019] It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.
[0020] In the description of the present invention, it should be understood that the terms "width", "up", "down", "front", "back", "top", "bottom", etc. indicating the orientation or position relationship are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying 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.
[0021] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", and "set" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.
[0022] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.
[0023] In the related art, there are two common ways to detect battery cells using industrial CT. The first is to place the battery cells on a tray, then move the tray and detect the battery cells on the tray using industrial CT. The second is to clamp the battery cells with a fixture, one fixture clamps one battery cell, then move the fixture and detect the battery cells using industrial CT. However, in the first method, since the battery cells are in a free state, the internal structure of the battery cells is prone to movement and displacement during the movement of the battery cells with the tray. In the second method, since one fixture can only clamp one battery cell, the efficiency of industrial CT detection of the battery cells is low and the cost is high.
[0024] Based on this, the utility model provides a battery cell clamping device with high battery cell detection efficiency and strong versatility, which can not only effectively prevent the internal structure of the battery cell from moving during the movement of the battery cell during battery cell detection, but also enable multiple battery cells to be detected by industrial CT at the same time, thereby improving the detection efficiency of the battery cells.
[0025] The technical solution of the present application will be further described below in conjunction with specific embodiments and drawings.
[0026] Please refer to Figure 1 and Figure 2 The utility model proposes a clamping device for a battery cell 400, comprising a support seat, the support seat comprising a first support member 100 and a second support member 500, the first support member 100 and the second support member 500 are parallel to each other; the first support member 100 and the second support member 500 are connected and fixed by a fixing member, the fixing member is a support column 200, and it can be known that the first support member 100 and the second support member 500 are connected by the support column 200. Specifically, the opposite ends of the support column 200 are respectively connected and fixed with the first support member 100 and the second support member 500. Exemplarily, one end of the support column 200 and the first support member 100 are fixed by bolts or welding, and the other end of the support column 200 and the second support member 500 are fixed by bolts or welding. Among them, an installation space is formed between the first support member 100 and the second support member 500, and a plurality of mutually parallel clamping members 300 are built in the installation space, and the clamping members 300 are parallel to the first support member 100 or the second support member 500. In addition, two adjacent clamping members 300 are connected by a flexible connecting member 800 extending along the first support member 100 toward the second support member 500. Exemplarily, one end of the flexible connecting member 800 is fixed to the first side surface of one clamping member 300 by bolts, and the other end of the flexible connecting member 800 is fixed to the first side surface of the other clamping member 300 by bolts. A clamping space for clamping the battery cell 400 can be formed between the two adjacent clamping members 300. A power structure is also provided on the support seat, which is drivingly connected to the clamping member 300 closest to the first support member 100, and the power structure is used to drive the clamping member 300 close to the first support member 100 to move toward the first support member 100 or the second support member 500.
[0027] When the clamping device for the battery cell 400 of the utility model is in use, since each adjacent clamping member 300 is connected by the flexible connecting member 800, when the power structure drives the clamping member 300 closest to the first support member 100 to move in the direction of the first support member 100 or the second support member 500, the flexible connecting member 800 will drive the other clamping members 300 (the other clamping members 300 refer to the clamping members 300 other than the clamping member 300 closest to the first support member 100) to move in the same direction as the clamping member 300 closest to the first support member 100. When the power structure drives the clamping member 300 closest to the first support member 100 to move toward the first support member 100, and the clamping member 300 closest to the first support member 100 moves to the set position, a clamping space for clamping the battery cell 400 is formed between the two adjacent clamping members 300. At this time, the battery cell 400 to be tested is placed in the clamping space of each of the two adjacent clamping members 300, and then the clamping member 300 closest to the first support member 100 is driven by the power structure to move toward the second support member 500. When the clamping member 300 closest to the second support member 500 fits with the second support member 500, or the clamping member 300 closest to the second support member 500 fits with the clamping member 300 placed closest to the second support member When the battery cells 400 between the clamping member 300 of 500 and the second support member 500 are fitted, that is, when the clamping member 300 closest to the second support member 500 moves toward the second support member 500 to a set position, the battery cells 400 in a clamping space are clamped by two adjacent clamping members 300. In this way, each battery cell 400 is in a compressed state, and the internal structure of the battery cell 400 will not move or shift during transportation, movement, and testing to cause battery cell 400 failure, thereby effectively preventing the internal structure of the battery cell 400 from moving or shifting during movement. At the same time, multiple battery cells 400 can also be tested by industrial CT at the same time, thereby improving the detection efficiency of the battery cell 400 and saving costs.
[0028] It is worth noting that, since the clamping space for clamping the battery cell 400 is driven by the power structure to move the clamping member 300 closest to the first support member 100 toward the second support member 500 to a set position to clamp the battery cell 400, the clamping force of the clamping space clamping the battery cell 400 can be adjusted by adjusting the clamping member 300 closest to the first support member 100 to move toward the second support member 500 to the set position, so that the clamping force of the battery cell 400 can be controlled. Specifically, exemplarily, the number of clamping members is four, but not limited to this, such as Figure 1As shown, the clamping member 300 closest to the first support member 100 is the first clamping member, the clamping member adjacent to the first clamping member is the second clamping member, and so on, the clamping member closest to the second support member 500 is the fourth clamping member. When the first clamping member moves downward for a distance, the second clamping member also moves downward with the first clamping member under the action of the flexible drawstring, and so on, until the fourth clamping member moves downward to press against the battery cell placed between the fourth clamping member and the second support member 500, the battery cells between the adjacent clamping members can be clamped and fixed.
[0029] In one embodiment, one end of the flexible connector 800 is connected to one of the outer side walls of two adjacent clamping members 300, and the other end of the flexible connector 800 is connected to the other outer side wall of two adjacent clamping members 300, so as to prevent the flexible connector 800 from being located between two adjacent clamping members 300. Exemplarily, the clamping member 300 is a square clamping plate, but is not limited thereto, and the two adjacent clamping members 300 have four outer sides, one of which allows the power core 400 to be inserted into the clamping space formed between the two adjacent clamping members 300, and the other three sides are connected with the above-mentioned flexible connector 800, so as to improve the connection stability between the two adjacent clamping members 300, and at the same time keep the two adjacent clamping members 300 parallel, so as to facilitate the clamping of the battery core 400.
[0030] In one embodiment, the flexible connector 800 is a flexible drawstring, which has good flexibility and is convenient for connecting two adjacent clamping members 300. Of course, the flexible connector 800 can also be a retractable flexible spring, which is not limited here.
[0031] In one embodiment, the number of support columns 200 is four but not limited to four, wherein two support columns 200 are located on one side between the first support member 100 and the second support member 500, and the other two support columns 200 are located on the other side between the first support member 100 and the second support member 500, so that the connection and fixing performance between the first support member 100 and the second support member 500 can be improved. Of course, in other embodiments, the number of support columns 200 can also be six or eight, which is not limited here. For those skilled in the art, by reasonably changing the number of support columns 200, it should also fall within the protection scope of the present utility model.
[0032] In one embodiment, the clamping member 300 includes but is not limited to one part, and may also be composed of a plurality of parts. The clamping member 300 is a clamping plate, which can increase the contact area between the clamping member 300 and the battery cell 400, further improve the clamping performance of the battery cell 400, and further avoid the phenomenon that the internal structure of the battery cell 400 moves and shifts during transportation, movement, and testing, causing the battery cell 400 to be defective.
[0033] In one embodiment, the number of the clamping members 300 is four but not limited to four. In other embodiments, the number of the clamping members 300 may also be six or eight. For those skilled in the art, by reasonably changing the number of the clamping members 300, it should also fall within the protection scope of the present utility model.
[0034] In one embodiment, the power structure includes a screw 600, which is a ball screw or a trapezoidal screw 600. The opposite ends of the screw 600 are rotatably arranged on the first support member 100 and the second support member 500, respectively. The clamping member 300 closest to the first support member 100 is provided with a threaded hole penetrating its relative surface, and the other clamping members 300 (referring to the clamping members 300 other than the clamping member 300 closest to the first support member 100) are provided with through holes 301 penetrating their respective relative surfaces and coaxial with the threaded holes. The screw 600 passes through the threaded holes and each through hole 301 and is threadedly connected with the threaded holes. It can be seen that by driving the screw 600 to rotate, the clamping member 300 closest to the first support member 100 can be driven to move toward the first support member 100 or the second support member 500.
[0035] In one embodiment, the power structure further includes a driving motor, which is disposed on the first support member 100, and the output end of the driving motor is drivingly connected to the lead screw 600, and the end of the lead screw 600 facing away from the driving motor is rotatably connected to the second support member 500 through a bearing 900. In this way, the driving motor drives the lead screw 600 to rotate, and the clamping member 300 closest to the first support member 100 can be driven to move.
[0036] Of course, in other embodiments, the power structure may also be a lifting cylinder or an electric push rod, etc., which is not limited here. Therefore, for those skilled in the art, by reasonably changing the structure of the power structure, it should also fall within the protection scope of the present utility model.
[0037] In one embodiment, the first support member 100 is a first support plate, and the second support member 500 is a second support plate, so that the area of the installation space can be increased to accommodate more clamping members 300 .
[0038] In one embodiment, a guide rail 710 is provided between the first support member 100 and the second support member 500. The guide rail 710 extends from the first support member 100 toward the second support member 500. The opposite ends of the guide rail 710 are respectively connected and fixed to the first support member 100 and the second support member 500. The clamping member 300 is slidably connected to the guide rail 710, so that the clamping member 300 can be more stable during the movement. There are two guide rails 710, and the two guide rails 710 are respectively located on the opposite sides of the plurality of clamping members 300, further improving the stability of the clamping member 300 during the movement. Of course, in other embodiments, the guide rail 710 can also be fixed to the first support member 100 or the second support member 500 separately, which is not limited here.
[0039] In one embodiment, a guide rod 700 is further provided between the first support member 100 and the second support member 500. The opposite ends of the guide rod 700 are respectively connected and fixed to the first support member 100 and the second support member 500. The guide rod 700 extends from the first support member 100 toward the second support member 500. The guide rod 700 is slidably penetrated through each clamping member 300. The guide rod 700 can make the clamping member 300 smoother and more stable during the movement, and avoid the clamping member 300 from running off during the movement and affecting the clamping performance of the battery cell 400. There are two guide rods 700, and the lead screw 600 is located between the two guide rods 700. Of course, the guide rod 700 and the lead screw 600 are located on the same side of the installation space, so that the battery cell 400 can be inserted into the clamping space from the side facing away from the guide rod 700, and the guide rod 700 and the lead screw 600 are prevented from interfering with the insertion of the battery cell 400 into the clamping space. Of course, in other embodiments, the guide rod 700 may also be fixed to the first support member 100 or the second support member 500 alone, that is, one end of the guide rod 700 is fixed to the first support member 100 or the second support member 500 .
[0040] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.
Claims
1. A clamping device for a battery cell, It is characterized in that The invention comprises a support seat, wherein the support seat comprises a first support member and a second support member connected to each other, an installation space is formed between the first support member and the second support member, a plurality of clamping members are placed in the installation space, two adjacent clamping members are connected by a flexible connecting member extending from the first support member toward the second support member, and a clamping space for clamping the battery cell can be formed between the two adjacent clamping members; a power structure is also provided on the support seat, and the power structure is drivingly connected to the clamping member closest to the first support member, and the power structure is used to drive the clamping member close to the first support member to move toward the first support member or the second support member.
2. A battery cell clamping device according to claim 1, It is characterized in that The power structure includes a lead screw, the opposite ends of which are rotatably arranged on the first support member and the second support member respectively. A threaded hole penetrating the relative surface of the clamping member close to the first support member is provided, and through holes penetrating the respective relative surfaces and coaxial with the threaded hole are provided on the other clamping members. The lead screw passes through the threaded hole and each through hole and is threadedly connected to the threaded hole.
3. A battery cell clamping device according to claim 2, It is characterized in that The power structure also includes a drive motor, which is arranged on the first support member, and the output shaft of the drive motor is drivingly connected to the lead screw, and one end of the lead screw facing away from the drive motor is rotatably connected to the second support member through a bearing.
4. A battery cell clamping device according to claim 1, It is characterized in that A guide rail is arranged between the first support member and the second support member, the guide rail extends along the first support member toward the second support member, and the clamping members are all slidably connected to the guide rail.
5. A battery cell clamping device according to claim 4, It is characterized in that The guide rail is fixed on the first supporting member or the second supporting member.
6. A battery cell clamping device according to claim 4, It is characterized in that The opposite ends of the guide rail are respectively connected and fixed to the first support member and the second support member.
7. A battery cell clamping device according to claim 5 or 6, It is characterized in that There are two guide rails, and the two guide rails are respectively located on two opposite sides of the plurality of clamping members.
8. A battery cell clamping device according to claim 2, It is characterized in that A guide rod located in the installation space is also provided between the first support member and the second support member, and the opposite ends of the guide rod are respectively connected and fixed to the first support member and the second support member, and the guide rod extends along the first support member toward the second support member, and the guide rod is slidably passed through each of the clamping members.
9. A battery cell clamping device according to claim 8, It is characterized in that There are two guide rods, and the lead screw is located between the two guide rods.
10. A battery cell clamping device according to claim 1, It is characterized in that The flexible connecting piece is a flexible drawstring.