Testing device and battery production system
By designing a test device for adjustable positioning components, the complex problem of battery clamp adjustment in the prior art is solved, efficient clamping and position stability of batteries of different specifications are achieved, and testing efficiency is improved.
Patent Information
- Application Number
- CN202422461199.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-12
- Publication Date
- 2025-01-10
- Estimated Expiration
- 2034-10-12
AI Technical Summary
Existing test devices require frequent replacement of fixtures or complicated adjustments when clamping lithium-ion batteries of different specifications, which affects the testing efficiency.
A test device is designed, including a testing mechanism and a positioning mechanism. The positioning mechanism consists of at least two positioning components, each of which is adjustable in different directions, so that pre-assembled clamping can be achieved before the safety test of the battery to ensure that the battery position is not easy. Move and compatible with different sizes of batteries.
It improves the adaptability and practicality of the test device, simplifies the battery clamping process, and improves the test efficiency.
Smart Images
Figure CN222337244U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of power batteries, in particular to a testing device and a battery production system. Background Art
[0002] At present, lithium-ion batteries are widely used in electric vehicles, consumer electronics and other fields due to their high energy density and long service life. In the safety test of batteries, the batteries need to be positioned before subsequent tests. In some embodiments, when clamping batteries of different specifications, the test device needs to frequently change the fixture or make complex adjustments, which greatly affects the test efficiency. Utility Model Content
[0003] Based on this, it is necessary to provide a testing device and a battery production system to address the problem that existing safety testing devices are not compatible with batteries of different specifications.
[0004] A testing device includes a testing mechanism and a positioning mechanism, wherein the testing mechanism has a testing station, and a positioning mechanism installed on the testing mechanism and used to position a battery at the testing station; wherein the positioning mechanism includes at least two positioning components, each positioning component is used to position the battery in at least two different directions, and each positioning component is adjustable in position in the corresponding positioning direction. In the battery safety test, the above-mentioned testing device can position the battery in at least two different directions through the positioning mechanism, so that the battery can be pre-clamped before the safety test, and the position of the battery is not easy to move, providing support for the next step of the battery safety test at the testing station; each positioning component is adjustable in position in the corresponding positioning direction, so that the positioning mechanism can be compatible with batteries of different sizes, thereby improving the adaptability and practicality of the testing device.
[0005] In some embodiments, the two positioning components are respectively connected to each other, the first positioning component is used to clamp the battery in a first direction, and the second positioning component is used to adjust the position of the battery in a second direction, and the second direction intersects the first direction. In this way, the battery can be positioned in two different directions, and the battery can be pre-clamped before the safety test, and the position of the battery is not easy to move.
[0006] In some embodiments, the first positioning assembly includes two clamping blocks, which are arranged opposite to each other along the first direction and have an adjustable spacing therebetween. Thus, the spacing between the two clamping blocks in the first direction is adjustable, which enables the first positioning assembly to be compatible with batteries of different lengths, thereby improving the adaptability and practicality of the first positioning assembly.
[0007] In some embodiments, the second positioning assembly includes a support block, a second adjustment rod and a fixed block, the fixed block is fixed to the test mechanism, the second adjustment rod is movably disposed on the fixed block along the second direction, and the support block is fixed to the second adjustment rod and is used to carry the battery. In this way, the second adjustment rod moves relative to the fixed block along the second direction, which can drive the battery on the support block to move along the second direction, thereby adjusting the position of the battery in the second direction.
[0008] In some embodiments, the fixing block is provided with a first screw hole along the second direction, and the second adjusting rod is provided with an external thread screwed with the first screw hole; the second adjusting rod is driven to rotate, so that the second adjusting rod can move along the second direction. In this way, the battery on the supporting block can be driven to move along the second direction by driving the second adjusting rod to rotate, and the operation is convenient and flexible.
[0009] In some embodiments, the first positioning assembly further includes a first adjustment rod, which is movably disposed on the support block along the first direction, and the clamping block is fixed to the first adjustment rod. In this way, the first adjustment rod moves relative to the support block along the first direction, which can drive the clamping block to move along the first direction, and the spacing between the two clamping blocks in the first direction is adjustable, so that the first positioning assembly can be compatible with batteries of different lengths, thereby improving the adaptability and practicality of the first positioning assembly.
[0010] In some embodiments, the support block is provided with a second screw hole along the first direction, and the first adjustment rod is provided with an external thread screwed with the second screw hole; the first adjustment rod is driven to rotate, so that the first adjustment rod can be moved along the first direction. In this way, the clamping block can be driven to move along the first direction by driving the first adjustment rod to rotate, and the operation is convenient and flexible.
[0011] In some embodiments, there are two support blocks, and the two support blocks are arranged opposite to each other along the first direction, and each first adjustment rod is movably arranged on one support block along the first direction. In this way, a clamping block is fixed on each first adjustment rod, and by movably arranging each first adjustment rod on one support block along the first direction, the spacing between the two clamping blocks in the first direction can be better adjusted.
[0012] In some embodiments, the support block includes a first support portion and a second support portion connected to each other, the second support portion extends along the second direction, and the first support portion extends along the first direction; the first support portion is fixedly connected to the second adjustment rod, and the first adjustment rod is movably arranged on the second support portion along the first direction. In this way, the first adjustment rod and the second adjustment rod can be connected to different parts of the support block, thereby improving the space utilization rate of the support block.
[0013] In some embodiments, the testing mechanism includes a first pressing plate and a second pressing plate, the second pressing plate and the first pressing plate are arranged opposite to each other along a third direction and the spacing is adjustable, the positioning mechanism is arranged on the side of the first pressing plate facing the second pressing plate, and the third direction, the second direction and the first direction intersect and are not coplanar. In this way, the spacing between the second pressing plate and the first pressing plate in the third direction is adjustable, and the clamping force applied to the battery between the second pressing plate and the first pressing plate can be adjusted to adapt to the clamping requirements of batteries of different thicknesses.
[0014] In some embodiments, the testing mechanism further includes a testing driver connected to the second pressing plate and used to drive the second pressing plate to move along a third direction, so that the second pressing plate can move in the third direction relative to the first pressing plate, thereby changing the spacing between the second pressing plate and the first pressing plate in the third direction.
[0015] In some embodiments, the test mechanism further includes a protective cover, which is disposed outside the test drive, and the output shaft of the test drive passes through the protective cover and is connected to the second pressure plate. In this way, the protective cover is disposed outside the test drive, which can protect the test drive and help extend the service life of the test drive.
[0016] In some embodiments, the testing mechanism further includes a guide column, one end of which is fixed to the protective cover, and the other end of which passes through the second pressing plate and is fixedly connected to the first pressing plate. In this way, when the second pressing plate moves along the third direction, the guide column plays a guiding role, which can reduce the probability of the second pressing plate being offset during the movement.
[0017] In some embodiments, the test mechanism further includes a pressure measuring element, which is disposed on the output shaft of the test drive, so that the clamping force applied to the battery between the second pressing plate and the first pressing plate can be measured by the pressure measuring element, and the clamping force can be adjusted in time.
[0018] In some embodiments, the testing mechanism further includes a heating element, which is detachably disposed on a side of the second pressing plate facing the first pressing plate. In this way, the heating element can be easily assembled and disassembled, and can be adapted to different types of testing requirements.
[0019] In some embodiments, the test mechanism further includes a heat insulating member, which is detachably disposed between the heating member and the second pressing plate, so as to reduce the probability of heat from the heating member being directly transferred to the second pressing plate, thereby preventing the second pressing plate and the test driver from being damaged by overheating.
[0020] A battery production system includes the above-mentioned test device. In the battery production system, the positioning mechanism can position the battery in at least two different directions during the safety test of the battery, so that the battery can be pre-clamped before the safety test, and the position of the battery is not easy to move, providing support for the safety test of the battery at the test station in the next step; each positioning component is adjustable in the corresponding positioning direction, so that the positioning mechanism can be compatible with batteries of different sizes, improving the adaptability and practicality of the test device. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] Figure 1 This is an overall isometric view of a testing device in some embodiments of the present application.
[0022] Figure 2 This is an overall isometric view of the testing device in some embodiments of the present application, wherein the protective cover is in an open state.
[0023] Figure 3 for Figure 2 Front view of the test apparatus shown.
[0024] Figure 4 Schematic diagram of a testing mechanism in a testing device in some embodiments of the present application.
[0025] Figure 5 This is a schematic diagram of the positioning mechanism in some embodiments of the present application.
[0026] Figure 6 Schematic diagram of a battery in some embodiments of the present application.
[0027] Reference numerals:
[0028] 20. Battery; 21. Housing; 22. Battery cell; 100. Test mechanism; 101. Test station; 110. First pressure plate; 120. Second pressure plate; 130. Test drive; 140. Protective cover; 150. Guide column; 160. Pressure measuring element; 170. Heating element; 180. Heat insulating element; 200. Positioning mechanism; 210. First positioning assembly; 211. Clamping block; 212. First adjusting rod; 220. Second positioning assembly; 221. Support block; 221a. First supporting portion; 221b. Second supporting portion; 222. Second adjusting rod; 223. Fixing block. DETAILED DESCRIPTION
[0029] The following embodiments of the technical solution of the present application will be described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present application, and are therefore only used as examples, and cannot be used to limit the scope of protection of the present application.
[0030] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" in the specification and claims of this application and the above-mentioned figure descriptions and any variations thereof are intended to cover non-exclusive inclusions.
[0031] In the description of the embodiments of the present application, the technical terms "first", "second", etc. are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features. In the description of the embodiments of the present application, the meaning of "multiple" is more than two, unless otherwise clearly and specifically defined.
[0032] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.
[0033] In the description of the embodiments of the present application, the term "and / or" is only a description of the association relationship of the associated objects, indicating that there may be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.
[0034] In the description of the embodiments of the present application, the term "multiple" refers to more than two (including two). Similarly, "multiple groups" refers to more than two groups (including two groups), and "multiple pieces" refers to more than two pieces (including two pieces).
[0035] In the description of the embodiments of the present application, the technical terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the embodiments of the present application.
[0036] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, technical terms such as "installed", "connected", "connected", "fixed" and the like 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 or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal connection of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.
[0037] At present, lithium-ion batteries are widely used in electric vehicles, consumer electronics and other fields due to their high energy density and long service life. In the safety test of batteries, the batteries need to be positioned before subsequent tests. In some embodiments, when clamping batteries of different specifications, the test device needs to frequently change the fixture or make complex adjustments, which greatly affects the test efficiency.
[0038] Based on the above considerations, a testing device and a battery production system are designed. In the safety test of the battery, the battery can be positioned in at least two different directions through the positioning mechanism, so that the battery can be pre-clamped before the safety test, and the position of the battery is not easy to move, which provides support for the next step of the battery safety test at the test station; each positioning component is adjustable in the corresponding positioning direction, which makes the positioning mechanism compatible with batteries of different sizes, thereby improving the adaptability and practicality of the testing device.
[0039] Please refer to Figures 1 to 4 The testing device in one embodiment includes a testing mechanism 100 and a positioning mechanism 200. The testing mechanism 100 has a testing station 101. The positioning mechanism 200 is installed on the testing mechanism 100 and is used to position the battery 20 at the testing station 101. The positioning mechanism 200 includes at least two positioning components, each positioning component is used to position the battery 20 in at least two different directions, and each positioning component is adjustable in the corresponding positioning direction.
[0040] It should be noted that in the safety test of the battery 20, the above-mentioned testing device is used to clamp the battery 20 and test the battery 20. The safety test includes tests of thermal runaway, charge and discharge expansion rate, short circuit, etc., but is not limited thereto.
[0041] In an embodiment of the present application, the testing mechanism 100 is configured as a component for testing the battery 20. The testing mechanism 100 can be in various structural forms. For example, the testing mechanism 100 includes two pressure plates and various different test elements. The battery 20 is clamped by the pressure plates, and different tests are performed on the battery 20 using the test elements.
[0042] In the embodiment of the present application, the positioning mechanism 200 is configured as a component for positioning the battery 20 at the test station 101. The positioning mechanism 200 includes at least two positioning components, each positioning component is used to position the battery 20 in two different directions, for example, one positioning component is used to position the battery 20 in two different directions. Figure 1 The battery 20 is positioned in the X direction as shown, and another positioning component is used to position the battery 20 in the X direction. Figure 1 The Y direction shown positions the battery 20 .
[0043] In the embodiment of the present application, the positioning mechanism 200 is installed on the testing mechanism 100, and the positioning mechanism 200 and the testing mechanism 100 can be detachably connected, such as screw connection, clamping connection, etc.; the positioning mechanism 200 and the testing mechanism 100 can also be non-detachably connected, such as riveting, welding, etc. Here, the connection method between the positioning mechanism 200 and the testing mechanism 100 is not limited.
[0044] The above-mentioned test device, in the safety test of the battery 20, can position the battery 20 in at least two different directions through the positioning mechanism 200, so that the battery 20 can be pre-clamped before the safety test, and the position of the battery 20 is not easy to move, thereby providing support for the next step of the safety test of the battery 20 at the test station 101; each positioning component is adjustable in the corresponding positioning direction, so that the positioning mechanism 200 can be compatible with batteries 20 of different sizes, thereby improving the adaptability and practicality of the test device.
[0045] According to some embodiments of this application, please refer to Figure 4 and Figure 5 , wherein the two positioning components are a first positioning component 210 and a second positioning component 220 connected to each other, the first positioning component 210 is used to clamp the battery 20 in a first direction, and the second positioning component 220 is used to adjust the position of the battery 20 in a second direction, and the second direction intersects with the first direction.
[0046] It should be noted that the first direction is Figure 5 The X direction is the length direction of the battery 20; the second direction is Figure 5 The Y direction shown is the height direction of the battery 20 .
[0047] In an embodiment of the present application, the first direction and the second direction are perpendicular to each other. In other embodiments, the first direction and the second direction may also be arranged at an angle other than 90 degrees.
[0048] Through the above arrangement, the battery 20 can be positioned in two different directions, so that the battery 20 can be pre-clamped before the safety test, and the position of the battery 20 is not easy to move.
[0049] According to some embodiments of this application, please refer to Figure 5The first positioning assembly 210 includes two clamping blocks 211, and the two clamping blocks 211 are arranged opposite to each other along the first direction and the distance between them is adjustable.
[0050] In an embodiment of the present application, the two clamps 211 are arranged relative to each other along the first direction and the spacing between them is adjustable, wherein only one of the two clamps 211 can be moved along the first direction, or both clamps 211 can be moved along the first direction to change the spacing between the two clamps 211 in the first direction.
[0051] In the embodiment of the present application, the shapes and sizes of the two clamping blocks 211 may be completely the same, so as to ensure uniform clamping force of the two clamping blocks 211 . The shapes and sizes of the two clamping blocks 211 may also be different.
[0052] Through the above arrangement, the distance between the two clamping blocks 211 in the first direction is adjustable, so that the first positioning assembly 210 can be compatible with batteries 20 of different lengths, thereby improving the adaptability and practicality of the first positioning assembly 210.
[0053] According to some embodiments of this application, please refer to Figure 4 and Figure 5 The second positioning assembly 220 includes a supporting block 221, a second adjusting rod 222 and a fixing block 223. The fixing block 223 is fixed to the testing mechanism 100. The second adjusting rod 222 is movably disposed on the fixing block 223 along the second direction. The supporting block 221 is fixed to the second adjusting rod 222 and is used to carry the battery 20.
[0054] It is understandable that the second adjustment rod 222 moves along the second direction relative to the fixed block 223, which can drive the support block 221 to move along the second direction, and at the same time drive the battery 20 on the support block 221 to move along the second direction, thereby adjusting the position of the battery 20 in the second direction.
[0055] In an embodiment of the present application, the support block 221 is configured as a component for supporting the battery 20. The support block 221 can be in a variety of structural forms. For example, the support block 221 can be an L-shaped structure to drag the support block 221 from the bottom. The support block 221 can also be a C-shaped or other shaped structure.
[0056] In an embodiment of the present application, the second adjusting rod 222 is movably provided on the fixed block 223 along the second direction, and the support block 221 is fixed to the second adjusting rod 222. This can be achieved through the following structure: for example, a hole extending along the second direction is provided on the fixed block 223, and one end of the second adjusting rod 222 passes through the hole of the fixed block 223 and is fixedly connected to the support block 221. At this time, the second adjusting rod 222 can be movable along the second direction relative to the fixed block 223.
[0057] In an embodiment of the present application, the support block 221 and the second adjusting rod 222 can be detachably connected, for example, fixed by screwing, clamping, etc.; or, the support block 221 and the second adjusting rod 222 can be non-detachably connected, for example, fixed by riveting, welding, etc.
[0058] In the embodiment of the present application, the fixing block 223 is configured as a component fixed to the test mechanism 100, and the fixing block 223 and the test mechanism 100 can be detachably connected or non-detachably connected. The fixing block 223 can be a block structure in an L-shape, a C-shape, etc., and the shape of the fixing block 223 is not limited here.
[0059] Through the above arrangement, the second adjustment rod 222 moves along the second direction relative to the fixing block 223 , and can drive the battery 20 on the supporting block 221 to move along the second direction, thereby adjusting the position of the battery 20 in the second direction.
[0060] According to some embodiments of this application, please refer to Figure 5 The fixing block 223 is provided with a first screw hole along the second direction, and the second adjusting rod 222 is provided with an external thread screwed with the first screw hole; the second adjusting rod 222 is driven to rotate, so that the second adjusting rod 222 can move along the second direction.
[0061] It is understandable that by driving the second adjustment rod 222 to rotate, the second adjustment rod 222 moves along the second direction relative to the fixing block 223, which can drive the battery 20 on the support block 221 to move along the second direction, thereby adjusting the position of the battery 20 in the second direction.
[0062] In the embodiment of the present application, the second adjusting rod 222 is provided with an external thread screwed with the first screw hole, and the entire rod of the second adjusting rod 222 may be provided with the external thread, or a section of the rod of the second adjusting rod 222 may be provided with the external thread. Optionally, the second adjusting rod 222 is a screw.
[0063] Through the above arrangement, the second adjusting rod 222 is driven to rotate, which can drive the battery 20 on the supporting block 221 to move along the second direction, and the operation is convenient and flexible.
[0064] According to some embodiments of this application, please refer to Figure 5 The first positioning assembly 210 further includes a first adjusting rod 212 , which is movably disposed on the supporting block 221 along a first direction, and the clamping block 211 is fixed to the first adjusting rod 212 .
[0065] It can be understood that the first adjusting rod 212 moves along the first direction relative to the supporting block 221 , and can drive the clamping block 211 to move along the first direction, thereby adjusting the position of the clamping block 211 in the first direction.
[0066] In an embodiment of the present application, the first adjusting rod 212 is movably provided on the support block 221 along the first direction, and the clamping block 211 is fixed to the first adjusting rod 212. This can be achieved through the following structure: for example, a hole extending along the first direction is provided on the support block 221, and one end of the first adjusting rod 212 passes through the hole of the support block 221 and is fixedly connected to the clamping block 211. At this time, the first adjusting rod 212 can be movable along the first direction relative to the support block 221.
[0067] In an embodiment of the present application, the clamp block 211 and the first adjustment rod 212 can be detachably connected, for example, fixed by screwing, clamping, etc.; or, the clamp block 211 and the first adjustment rod 212 can be non-detachably connected, for example, fixed by riveting, welding, etc.
[0068] Through the above-mentioned arrangement, the first adjustment rod 212 moves along the first direction relative to the support block 221, which can drive the clamping block 211 to move along the first direction. The spacing between the two clamping blocks 211 in the first direction is adjustable, which can make the first positioning component 210 compatible with batteries 20 of different lengths, thereby improving the adaptability and practicality of the first positioning component 210.
[0069] According to some embodiments of this application, please refer to Figure 5 The support block 221 is provided with a second screw hole along the first direction, and the first adjusting rod 212 is provided with an external thread screwed with the second screw hole; the first adjusting rod 212 is driven to rotate, so that the first adjusting rod 212 can move along the first direction.
[0070] It is understandable that by driving the first adjusting rod 212 to rotate, the first adjusting rod 212 moves along the first direction relative to the supporting block 221 , which can drive the clamping block 211 to move along the first direction, thereby adjusting the position of the clamping block 211 in the first direction.
[0071] In the embodiment of the present application, the first adjustment rod 212 is provided with an external thread screwed with the first screw hole, and the entire rod of the first adjustment rod 212 may be provided with the external thread, or a section of the rod of the first adjustment rod 212 may be provided with the external thread. Optionally, the first adjustment rod 212 is a screw.
[0072] Through the above arrangement, the first adjusting rod 212 is driven to rotate, which can drive the clamping block 211 to move along the first direction, and the operation is convenient and flexible.
[0073] According to some embodiments of this application, please refer to Figure 5 There are two support blocks 221 , and the two support blocks 221 are arranged opposite to each other along the first direction. Each first adjustment rod 212 is movably disposed on a support block 221 along the first direction.
[0074] In the embodiment of the present application, the two support blocks 221 are arranged opposite to each other along the first direction. The shapes and sizes of the two support blocks 221 may be the same or different, which is not specifically limited here.
[0075] Through the above arrangement, a clamping block 211 is fixed on each first adjustment rod 212 , and by movably arranging each first adjustment rod 212 on a support block 221 along the first direction, the distance between the two clamping blocks 211 in the first direction can be better adjusted.
[0076] According to some embodiments of this application, please refer to Figure 5 The support block 221 includes a first support portion 221a and a second support portion 221b connected to each other, the second support portion 221b extends along the second direction, and the first support portion 221a extends along the first direction; the first support portion 221a is fixedly connected to the second adjustment rod 222, and the first adjustment rod 212 is movably arranged on the second support portion 221b along the first direction.
[0077] In the embodiment of the present application, the second support portion 221b extends along the second direction, that is, the second support portion 221b extends along the height direction of the battery 20; the first support portion 221a extends along the first direction, that is, the first support portion 221a extends along the length direction of the battery 20. The first support portion 221a is vertically connected to the second support portion 221b, so that a space for carrying the battery 20 can be formed between the first support portion 221a and the second support portion 221b.
[0078] In the embodiment of the present application, the first support portion 221a and the second support portion 221b are an integrated structure with good integrity and easy to assemble quickly. The first support portion 221a and the second support portion 221b can be integrally formed in various ways, such as by injection molding, casting or other methods.
[0079] Through the above arrangement, the first adjusting rod 212 and the second adjusting rod 222 can be connected to different parts of the support block 221 , thereby improving the space utilization of the support block 221 .
[0080] According to some embodiments of this application, please refer to Figure 4 The testing mechanism 100 includes a first pressing plate 110 and a second pressing plate 120. The second pressing plate 120 and the first pressing plate 110 are arranged opposite to each other along a third direction and the spacing between them is adjustable. The positioning mechanism 200 is arranged on the side of the first pressing plate 110 facing the second pressing plate 120. The third direction, the second direction and the first direction intersect and are not coplanar.
[0081] It should be noted that the third party Figure 4The Z direction is the thickness direction of the battery 20. The positioning mechanism 200 is used to position the battery 20 in the first direction and the second direction, and the second pressing plate 120 and the first pressing plate 110 are used to apply a clamping force to the battery 20 in the third direction.
[0082] In an embodiment of the present application, the third direction, the second direction and the first direction are perpendicular to each other. In other embodiments, the third direction, the second direction and the first direction can also be arranged at an angle other than 90 degrees.
[0083] In an embodiment of the present application, the second pressure plate 120 and the first pressure plate 110 are arranged relative to each other along the third direction and the spacing between them is adjustable, wherein only one of the second pressure plate 120 and the first pressure plate 110 can be moved along the third direction, or both the second pressure plate 120 and the first pressure plate 110 can be moved along the third direction to change the spacing between the second pressure plate 120 and the first pressure plate 110 in the third direction.
[0084] In the embodiment of the present application, the second pressing plate 120 and the first pressing plate 110 may have exactly the same shape and size to facilitate uniform clamping force applied to the battery 20 . The second pressing plate 120 and the first pressing plate 110 may also have different shapes and sizes.
[0085] Through the above configuration, the distance between the second pressing plate 120 and the first pressing plate 110 in the third direction is adjustable, and the clamping force applied to the battery 20 between the second pressing plate 120 and the first pressing plate 110 can be adjusted to adapt to the clamping requirements of batteries 20 of different thicknesses.
[0086] According to some embodiments of this application, please refer to Figure 3 The testing mechanism 100 further includes a testing driving member 130 , which is connected to the second pressing plate 120 and is used to drive the second pressing plate 120 to move along the third direction.
[0087] It can be understood that, driven by the test driving member 130 , the second pressing plate 120 moves along the third direction, thereby changing the distance between the second pressing plate 120 and the first pressing plate 110 in the third direction.
[0088] In the embodiment of the present application, the test driver 130 has an output shaft, which is fixedly connected to the second pressing plate 120 and is used to drive the second pressing plate 120 to move along the third direction. Optionally, the test driver 130 is a motor or a cylinder.
[0089] In the embodiment of the present application, the number of the test driving components 130 is not limited to one. When the number of the test driving components 130 is at least two, the magnitude of the driving force can be adjusted more flexibly.
[0090] Through the above arrangement, the second pressing plate 120 can be moved relative to the first pressing plate 110 in the third direction, thereby changing the distance between the second pressing plate 120 and the first pressing plate 110 in the third direction.
[0091] According to some embodiments of this application, please refer to Figure 3 The test mechanism 100 further includes a protective cover 140 , which is disposed outside the test drive 130 , and an output shaft of the test drive 130 passes through the protective cover 140 and is connected to the second pressing plate 120 .
[0092] In the embodiment of the present application, the first pressing plate 110 and the second pressing plate 120 are both located outside the protective cover 140, the test driving member 130 is accommodated in the protective cover 140, and the output shaft of the test driving member 130 passes through the protective cover 140 and is connected to the second pressing plate 120. The output shaft of the test driving member 130 is fixedly connected to the middle part of the second pressing plate 120, so that the second pressing plate 120 is not easily skewed due to unbalanced force when moving.
[0093] In the embodiment of the present application, the protective cover 140 is configured to cover a component disposed outside the test drive 130, and the protective cover 140 is provided with an escape groove for the output shaft of the test drive 130 to pass through. The protective cover 140 can be in a variety of structural forms, for example, the protective cover 140 can be in a rectangular parallelepiped, a cube, or a cylindrical structure, and the protective cover 140 can have a cavity for accommodating the test drive 130.
[0094] Through the above configuration, the protective cover 140 is disposed outside the test driver 130 , which can protect the test driver 130 and help extend the service life of the test driver 130 .
[0095] According to some embodiments of this application, please refer to Figure 3 The testing mechanism 100 further includes a guide post 150 , one end of which is fixed to the protective cover 140 , and the other end of the guide post 150 passes through the second pressing plate 120 and is fixedly connected to the first pressing plate 110 .
[0096] In the embodiment of the present application, the guide column 150 is configured as a member that plays a guiding role, and the guide column 150 can be a cylindrical, prism-shaped or other forms of columnar structure. The number of guide columns 150 is not limited to one, for example, at least four guide columns 150 can be provided, and the four guide columns 150 are respectively fixed to the corners of the second pressing plate 120 to facilitate the stability of the structure.
[0097] In an embodiment of the present application, one end of the guide column 150 and the protective cover 140 can be detachably connected, for example, fixed by screwing, clamping, etc.; or, one end of the guide column 150 and the protective cover 140 can be non-detachably connected, for example, fixed by riveting, welding, etc.
[0098] In an embodiment of the present application, the other end of the guide column 150 and the first pressure plate 110 can be detachably connected, for example, fixed by screwing, clamping, etc.; or, the other end of the guide column 150 and the first pressure plate 110 can be non-detachably connected, for example, fixed by riveting, welding, etc.
[0099] Through the above arrangement, when the second pressing plate 120 moves along the third direction, the guide column 150 plays a guiding role, which can reduce the probability of the second pressing plate 120 being offset during the movement.
[0100] According to some embodiments of this application, please refer to Figure 3 The test mechanism 100 further includes a pressure measuring element 160 , which is disposed on an output shaft of the test drive 130 .
[0101] It should be noted that by adjusting the distance between the second pressure plate 120 and the first pressure plate 110 in the third direction, the clamping force applied to the battery 20 between the second pressure plate 120 and the first pressure plate 110 can be adjusted. At this time, the clamping force applied to the battery 20 between the second pressure plate 120 and the first pressure plate 110 can be measured by the pressure measuring element 160.
[0102] In the embodiment of the present application, the pressure measuring element 160 may be a single-function pressure sensor that can only detect pressure values; or, the pressure measuring element 160 may be a multi-function sensor that can detect other parameters such as temperature values in addition to pressure values.
[0103] In an embodiment of the present application, the number of pressure measuring elements 160 is not limited to one. When the number of pressure measuring elements 160 is at least two, each pressure measuring element 160 can be arranged at a different position of the output shaft of the test drive 130 to facilitate obtaining the clamping force value at different positions, thereby improving the accuracy of the detection results.
[0104] Through the above arrangement, the clamping force applied to the battery 20 between the second pressing plate 120 and the first pressing plate 110 is measured by the pressure measuring element 160, so that the clamping force can be adjusted in time.
[0105] According to some embodiments of this application, please refer to Figure 1 The testing mechanism 100 further includes a heating element 170 , which is detachably disposed on a side of the second pressing plate 120 facing the first pressing plate 110 .
[0106] It should be noted that when performing a safety test on the battery 20, if it is necessary to use the heating element 170, the heating element 170 can be assembled on the second pressing plate 120 and connected to an external power supply to heat up the battery 20 to prepare for subsequent tests; if the heating element 170 is not needed, the heating element 170 can be removed from the second pressing plate 120.
[0107] In the embodiment of the present application, the heating element 170 may be a heating element with a resistor or a heating wire, and the heating element 170 may be a block structure of a rectangular, circular or other shape. The number of the heating element 170 is not limited to one. When the number of the heating element 170 is at least two, each heating element 170 may be stacked along the third direction, arranged side by side along the first direction, or arranged side by side along the second direction.
[0108] In an embodiment of the present application, the heating element 170 is detachably disposed on the side of the second pressing plate 120 facing the first pressing plate 110. For example, fixing holes are respectively provided on the heating element 170 and the second pressing plate 120. The fixing holes can be pierced by fasteners such as screws or bolts, so that the heating element 170 can be detachably disposed on the second pressing plate 120.
[0109] Through the above arrangement, the heating element 170 is easy to assemble and disassemble and can adapt to different types of testing requirements.
[0110] According to some embodiments of this application, please refer to Figure 1 The testing mechanism 100 further includes a heat insulating member 180 , which is detachably disposed between the heating member 170 and the second pressing plate 120 .
[0111] It should be noted that when performing a safety test on the battery 20, if the heating element 170 is needed, the heating element 170 can be assembled on the second pressing plate 120 and connected to an external power source to heat up the battery 20, so as to prepare for subsequent tests. The provision of the heat insulating element 180 can reduce the probability that the heat of the heating element 170 is directly transferred to the second pressing plate 120, thereby causing overheating and damage to the second pressing plate 120 and the test driver 130.
[0112] In the embodiment of the present application, the heat insulating member 180 may be a glass fiber board or a heat insulating pad, and the heat insulating member 180 may be a rectangular, circular or other shaped structure. The number of the heat insulating members 180 is not limited to one, and when the number of the heat insulating members 180 is at least two, each heat insulating member 180 may be stacked along the third direction, arranged side by side along the first direction, or arranged side by side along the second direction.
[0113] In an embodiment of the present application, the thermal insulation member 180 is detachably disposed between the heating member 170 and the second pressure plate 120. For example, the heating member 170, the second pressure plate 120 and the thermal insulation member 180 are respectively provided with fixing holes, and the fixing holes can be penetrated by fasteners such as screws or bolts, so that the thermal insulation member 180 can be detachably disposed between the heating member 170 and the second pressure plate 120.
[0114] Through the above configuration, the probability of the heat of the heating element 170 being directly transferred to the second pressing plate 120 and causing overheating and damage to the second pressing plate 120 and the test driving element 130 can be reduced.
[0115] Please refer to Figure 1 , a battery production system in one embodiment includes the above-mentioned testing device.
[0116] It should be noted that, in addition to the above-mentioned testing device, the above-mentioned battery production system also includes other components such as an assembling device. The assembling device is arranged downstream of the testing device and is used to assemble the battery 20.
[0117] In the embodiments of this application, reference is made to Figure 6 The battery 20 includes a housing 21 and a battery cell 22, and the battery cell 22 is contained in the housing 21. In the battery 20, there may be multiple battery cells 22, and the multiple battery cells 22 may be connected in series, in parallel, or in mixed connection. Mixed connection means that the multiple battery cells 22 are both connected in series and in parallel. The multiple battery cells 22 may be directly connected in series, in parallel, or in mixed connection, and then the whole formed by the multiple battery cells 22 is contained in the housing 21; of course, the battery 20 may also be a battery module formed by connecting multiple battery cells 22 in series, in parallel, or in mixed connection, and then the multiple battery 20 modules are connected in series, in parallel, or in mixed connection to form a whole, and contained in the housing 21. The battery 20 may also include other structures, for example, the battery 20 may also include a converging component for realizing electrical connection between the multiple battery cells 22.
[0118] Each battery cell 22 may be a secondary battery or a primary battery, or a lithium-sulfur battery 20, a sodium-ion battery or a magnesium-ion battery, but is not limited thereto. The battery cell 22 may be cylindrical, flat, rectangular or in other shapes.
[0119] In the above-mentioned battery production system, during the safety test of the battery 20, the positioning mechanism 20 can position the battery 20 in at least two different directions, so that the battery 20 can be pre-clamped before the safety test, and the position of the battery 20 is not easy to move, thereby providing support for the next step of the safety test of the battery 20 at the test station 101; each positioning component is adjustable in the corresponding positioning direction, so that the positioning mechanism 200 can be compatible with batteries 20 of different sizes, thereby improving the adaptability and practicality of the testing device.
[0120] According to some embodiments of the present application, see Figures 1 to 6 The test device in one embodiment includes a test mechanism 100 and a positioning mechanism 200. The test mechanism 100 includes a first pressing plate 110, a second pressing plate 120, a test driving member 130, a protective cover 140, a guide column 150, a pressure measuring element 160, a heating member 170 and a heat insulating member 180. The second pressing plate 120 and the first pressing plate 110 are arranged opposite to each other along a third direction. The protective cover 140 is arranged outside the test driving member 130. The output shaft of the test driving member 130 passes through the first pressing plate 120. The guide column 150 passes through the protective cover 140 and is connected to the second pressure plate 120, and the pressure measuring element 160 is arranged on the output shaft of the test drive 130; one end of the guide column 150 is fixed to the protective cover 140, and the other end of the guide column 150 passes through the second pressure plate 120 and is fixedly connected to the first pressure plate 110, the heating element 170 is detachably arranged on the side of the second pressure plate 120 facing the first pressure plate 110, and the heat insulation element 180 is detachably arranged between the heating element 170 and the second pressure plate 120.
[0121] The positioning mechanism 200 is disposed on the side of the first pressing plate 110 facing the second pressing plate 120, and is used to position the battery 20 at the test station 101. The positioning mechanism 200 includes a first positioning assembly 210 and a second positioning assembly 220 connected to each other, the second positioning assembly 220 includes a support block 221, a second adjustment rod 222 and a fixed block 223, the fixed block 223 is fixed to the test mechanism 100, the second adjustment rod 222 is movably disposed on the fixed block 223 along the second direction, the support block 221 is fixed to the second adjustment rod 222 and is used to carry the battery 20. The first positioning assembly 210 includes a first adjustment rod 212 and two clamping blocks 211, the two clamping blocks 211 are arranged opposite to each other along the first direction and the spacing is adjustable, the first adjustment rod 212 is movably disposed on the support block 221 along the first direction, the clamping block 211 is fixed to the first adjustment rod 212, the first direction is the length direction of the battery 20, the second direction is the height direction of the battery 20, and the third direction is the thickness direction of the battery 20.
[0122] According to some embodiments of the present application, see Figures 1 to 6 , a battery production system in one embodiment includes the above-mentioned testing device.
[0123] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them; although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application, and they should all be included in the scope of the claims and specification of the present application. In particular, as long as there is no structural conflict, the various technical features mentioned in the various embodiments can be combined in any way. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions that fall within the scope of the claims.
Claims
1. A testing device, characterized in that: include: A testing mechanism (100) having a testing station (101); A positioning mechanism (200), installed on the testing mechanism (100) and used to position the battery (20) at the testing station (101); The positioning mechanism (200) comprises at least two positioning components, each of the positioning components is used to position the battery (20) in at least two different directions that intersect with the third direction and are not coplanar, and each of the positioning components is adjustable in position in the corresponding positioning direction; The testing mechanism (100) comprises a first pressing plate (110) and a second pressing plate (120), the second pressing plate (120) and the first pressing plate (110) being arranged relative to each other along the third direction and with an adjustable spacing therebetween, the positioning mechanism (200) being arranged on a side of the first pressing plate (110) facing the second pressing plate (120), the third direction being the thickness direction of the battery (20).
2. The testing device according to claim 1, characterized in that: The two positioning components are respectively a first positioning component (210) and a second positioning component (220) that are connected to each other; the first positioning component (210) is used to clamp the battery (20) in a first direction; and the second positioning component (220) is used to adjust the position of the battery (20) in a second direction, wherein the second direction intersects with the first direction.
3. The testing device according to claim 2, characterized in that: The first positioning assembly (210) comprises two clamping blocks (211), and the two clamping blocks (211) are arranged opposite to each other along the first direction and the spacing between them is adjustable.
4. The testing device according to claim 3, characterized in that: The second positioning assembly (220) comprises a support block (221), a second adjustment rod (222) and a fixed block (223); the fixed block (223) is fixed to the test mechanism (100); the second adjustment rod (222) is movably arranged on the fixed block (223) along the second direction; and the support block (221) is fixed to the second adjustment rod (222) and is used to carry the battery (20).
5. The testing device according to claim 4, characterized in that: The fixing block (223) is provided with a first screw hole along the second direction, and the second adjusting rod (222) is provided with an external thread screwed to the first screw hole; Driving the second adjustment rod (222) to rotate can cause the second adjustment rod (222) to move along the second direction.
6. The testing device according to claim 4, characterized in that: The first positioning assembly (210) further comprises a first adjusting rod (212), the first adjusting rod (212) being movably disposed on the supporting block (221) along the first direction, and the clamping block (211) being fixed to the first adjusting rod (212).
7. The testing device according to claim 6, characterized in that: The support block (221) is provided with a second screw hole along the first direction, and the first adjustment rod (212) is provided with an external thread screwed to the second screw hole; Driving the first adjustment rod (212) to rotate can cause the first adjustment rod (212) to move along the first direction.
8. The testing device according to claim 7, characterized in that: There are two support blocks (221), and the two support blocks (221) are arranged opposite to each other along the first direction, and each first adjustment rod (212) is movably arranged on one support block (221) along the first direction.
9. The testing device according to claim 6, characterized in that: The support block (221) comprises a first support portion (221a) and a second support portion (221b) which are connected to each other, the second support portion (221b) extending along the second direction, and the first support portion (221a) extending along the first direction; The first support portion (221a) is fixedly connected to the second adjustment rod (222), and the first adjustment rod (212) is movably disposed on the second support portion (221b) along the first direction.
10. The testing device according to claim 1, characterized in that: The testing mechanism (100) further comprises a testing driving member (130), wherein the testing driving member (130) is connected to the second pressing plate (120) and is used to drive the second pressing plate (120) to move along the third direction.
11. The testing device according to claim 10, characterized in that: The testing mechanism (100) further comprises a protective cover (140), wherein the protective cover (140) is arranged outside the testing driving component (130), and an output shaft of the testing driving component (130) passes through the protective cover (140) and is connected to the second pressing plate (120).
12. The testing device according to claim 11, characterized in that: The testing mechanism (100) further comprises a guide column (150), one end of the guide column (150) being fixed to the protective cover (140), and the other end of the guide column (150) passing through the second pressing plate (120) and then being fixedly connected to the first pressing plate (110).
13. The testing device according to claim 11, characterized in that: The testing mechanism (100) further comprises a pressure measuring element (160), wherein the pressure measuring element (160) is arranged on an output shaft of the testing driving component (130).
14. The testing device according to claim 1, characterized in that: The testing mechanism (100) further comprises a heating element (170), wherein the heating element (170) is detachably arranged on a side of the second pressing plate (120) facing the first pressing plate (110).
15. The testing device according to claim 14, characterized in that: The testing mechanism (100) further comprises a heat insulating member (180), wherein the heat insulating member (180) is detachably disposed between the heating member (170) and the second pressing plate (120).
16. A battery production system, characterized in that: Comprising a testing device as described in any one of claims 1-15.