Horizontal type constant force thickness testing machine
Through horizontal structure and high-precision pressure sensing technology, the space occupation problem of vertical cell thickness tester is solved, and the efficiency, accuracy and safety of cell thickness testing is achieved, and the compactness needs of the battery manufacturing industry is adapted to the battery manufacturing industry.
Patent Information
- Application Number
- CN202422452173.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-11
- Publication Date
- 2025-07-25
- Estimated Expiration
- 2034-10-11
AI Technical Summary
Vertical cell thickness tester occupies a large space, limits the flexibility of production line layout and increases space cost, making it difficult for traditional equipment to achieve efficient and accurate cell thickness testing.
The horizontal structure design is adopted, combining charging and discharging automatic clamping technology and high-precision pressure sensing technology, and the activity detection module and fixed detection module are designed, and the servo cylinders and wire ropes are used to achieve the precise movement of the movable pressure plate, and the fire-fighting device and lifting ring are integrated to ensure the safe and efficient operation of the equipment.
Significantly reduce the vertical space occupation of the equipment, improve the production line space utilization, realize the efficiency, accuracy and safety of battery cell thickness testing, and adapt to compact production line layout.
Smart Images
Figure CN223154241U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of battery cell thickness testing equipment, and particularly to a horizontal constant-force thickness testing machine. Background Art
[0002] In the battery manufacturing industry, the thickness of battery cells and their changes under different pressures are important indicators for measuring their mechanical properties. These indicators are directly related to the safety, durability, and overall performance of the batteries. Therefore, it is particularly important to accurately measure the thickness of battery cells and evaluate their performance under different stress conditions.
[0003] Traditional battery cell thickness testing mostly uses vertical testing machines. Such equipment usually occupies a large vertical space in design and requires a high installation height to meet the testing requirements. However, with the rapid development of the battery manufacturing industry, the compactness and automation level of production lines have been continuously improved, posing higher requirements for the space utilization rate of testing equipment. Due to its large height occupation space, the vertical testing machine is particularly inconvenient in the production line layout, not only restricting the flexibility of the production line but also possibly increasing the space cost of the workshop and affecting the overall production efficiency. Summary of the Utility Model
[0004] The purpose of this application is to provide a horizontal constant-force thickness testing machine, aiming to effectively solve the deficiency of vertical testing machines in space occupation by adopting a horizontal structure design. At the same time, combined with the automatic charging and discharging clamping technology and high-precision pressure sensing technology, it can comprehensively and accurately test the thickness of battery cells and the performance changes under different pressure conditions, providing a more efficient and reliable testing solution for the battery manufacturing industry.
[0005] To achieve the above purpose, this application provides the following technical solutions:
[0006] A horizontal constant-force thickness testing machine includes a horizontal thickness measuring mechanism, an explosion-proof housing, and a control unit. The horizontal thickness measuring mechanism is arranged inside the explosion-proof housing, and the control unit is arranged on one side of the explosion-proof housing. The horizontal thickness measuring mechanism includes a movable detection module, a fixed detection module, a mounting rack, and an automatic charging and discharging clamp, where
[0007] The movable detection module is arranged on the left side of the mounting rack, the fixed detection module is arranged on the right side of the mounting rack, and the automatic charging and discharging clamp is arranged on one side of the fixed detection module for clamping the battery cell tabs.
[0008] The movable detection module includes a movable pressure plate, a movable seat, a slide rail, and a transverse movement driving device. The movable pressure plate is installed on the side of the movable seat close to the fixed detection module. The movable seat is installed on the slide rail, and the transverse movement driving device drives the movable seat to drive the movable pressure plate to move horizontally along the slide rail.
[0009] The fixed detection module includes a fixed pressing plate and a pressure sensor, and the pressure sensor is arranged on one side of the fixed pressing plate.
[0010] Further, a first pressing plate replacement roller device is arranged on one side of the movable pressing plate. The first pressing plate replacement roller device includes a first mounting seat and a plurality of first rollers arranged side by side on the first mounting seat.
[0011] Further, a second pressing plate replacement roller device is arranged on one side of the fixed pressing plate. The second pressing plate replacement roller device includes a second mounting seat and a plurality of second rollers arranged side by side on the second mounting seat.
[0012] Further, a nitrogen spring is connected to the movable seat.
[0013] Further, the transverse movement driving device is a servo electric cylinder. A steel wire rope is arranged between the servo electric cylinder and the mounting frame. The steel wire ropes are respectively arranged above and below the servo electric cylinder. One end of each steel wire rope is connected to the servo electric cylinder, and the other end is connected to the mounting frame.
[0014] Further, a battery core heightening plate is arranged on the side surface of the fixed pressing plate close to the movable pressing plate.
[0015] Further, an opposed light sensor is arranged inside the fixed pressing plate to detect whether the battery core is taken away.
[0016] Further, a fire protection device is further included. The fire protection device includes a fire protection feeding mechanism and a combustion box. The fire protection feeding mechanism is arranged on one side of the fixed pressing plate, and the combustion box is arranged on one side of the fire protection feeding mechanism. The fire protection feeding mechanism is used to push the abnormal battery core into the combustion box.
[0017] Further, the automatic charge and discharge clamp includes clamping pieces and a clamp opening and closing motor for driving the clamping pieces to clamp the battery core pole pieces.
[0018] Further, a lifting ring is arranged at the top of the mounting frame.
[0019] The beneficial effects of this application are as follows:
[0020] (1) By designing the thickness measurement mechanism as a horizontal structure and integrating it into the explosion-proof shell, this application significantly reduces the occupation of vertical space by the equipment, making the testing machine more adaptable to the compact and automated production line layout, improving the space utilization rate of the production workshop, and reducing the space cost.
[0021] (2) The ingenious combination of the activity detection module and the fixed detection module of this application, together with the automatic charging and discharging clamp, realizes the rapid positioning and stable clamping of the battery cell. The transverse movement driving device drives the movable pressure plate to move horizontally along the slide rail, which can accurately control the pressure application during the test and improve the efficiency and accuracy of the test. Description of the Drawings
[0022] Figure 1 It is a schematic structural diagram of a horizontal constant force thickness tester provided by an embodiment of this application;
[0023] Figure 2 It is a schematic structural diagram of a horizontal thickness measuring mechanism provided by an embodiment of this application;
[0024] Figure 3 It is a cross-sectional view of a horizontal thickness measuring mechanism provided by an embodiment of this application;
[0025] Figure 4 It is a schematic structural diagram of a horizontal thickness measuring mechanism from another perspective provided by an embodiment of this application; Explanation of reference numerals:
[0026] 100, horizontal thickness measuring mechanism; 200, explosion-proof housing; 300, control unit; 400, battery cell;
[0027] 110, activity detection module; 120, fixed detection module; 130, mounting bracket; 140, automatic charging and discharging clamp; 150, fire protection device; 160, lifting sling;
[0028] 111, movable pressure plate; 112, movable seat; 113, slide rail; 114, transverse movement driving device; 115, first pressure plate replacement roller device; 116, steel wire rope;
[0029] 115a, first mounting seat; 115b, first roller;
[0030] 121, fixed pressure plate; 122, pressure sensor; 123, second pressure plate replacement roller device; 124, battery cell elevation plate;
[0031] 123a, second mounting seat; 123b, second roller;
[0032] 151, fire protection pushing mechanism; 152, combustion chamber;
[0033] 141, the automatic charging and discharging clamp consists of clamping pieces; 142, clamp opening and closing motor; Detailed Embodiments
[0034] The terms used in the embodiments section of this application are only used to explain the specific embodiments of this application and are not intended to limit this application. The following will describe the embodiments of this application in detail with reference to the drawings.
[0035] As Figure 1 shown, in this embodiment, the horizontal constant-force thickness tester of the present invention mainly consists of three major parts: a horizontal thickness measuring mechanism 100, an explosion-proof housing 200, and a control unit 300. The horizontal thickness measuring mechanism 100 is carefully designed and installed inside the explosion-proof housing 200 to ensure the safety and stability of the testing process. The control unit 300 is arranged on one side of the explosion-proof housing 200, facilitating the operator to set parameters, monitor the testing process, and view the test results.
[0036] As Figure 2 and Figure 3 shown, the horizontal thickness measuring mechanism 100 includes a movable detection module 110, a fixed detection module 120, a mounting bracket 130, and a charging and discharging automatic clamp 140, where
[0037] the movable detection module 110 is arranged on the left side of the mounting bracket 130, the fixed detection module 120 is arranged on the right side of the mounting bracket 130, and the charging and discharging automatic clamp 140 is arranged on one side of the fixed detection module 120 for clamping the electrode tab of the battery cell.
[0038] The movable detection module 110 includes a movable pressure plate 111, a movable seat 112, a slide rail 113, and a lateral movement driving device 114. The movable pressure plate 111 is a marble plate with a flat and smooth surface to ensure good contact with the surface of the battery cell. The movable pressure plate 111 is installed on the side of the movable seat 112 close to the fixed detection module 120. The movable seat 112 is installed on the slide rail 113, and the lateral movement driving device 114 drives the movable seat 112 to drive the movable pressure plate 111 to move horizontally along the slide rail 113.
[0039] The fixed detection module 120 includes a fixed pressure plate 121 and a pressure sensor 122. The pressure sensor 122 is arranged on one side of the fixed pressure plate 121. The fixed pressure plate 121 is a marble plate, and the pressure sensor 122 is used to detect and record in real time the pressure value borne by the battery cell during the testing process.
[0040] As Figure 4 shown, in this embodiment, aiming at the problems that the movable pressure plate 111 is made of marble, has a large weight, and is not easy to install, the present invention adds a first pressure plate replacement roller device 115 on one side of the movable pressure plate 111. This device consists of a sturdy first mounting seat 115a and a plurality of first rollers 115b arranged side by side thereon. The first rollers 115b are made of wear-resistant and smoothly rolling materials to ensure that the battery cell can slide easily when replacing the movable pressure plate 111, reducing the working burden of the operator.
[0041] Similarly, to further improve the maintenance convenience on the side of the fixed pressure plate 121, the present invention adds a second pressure plate replacement roller device 123 on one side of the fixed pressure plate 121. The structure of this device is similar to that of the first pressure plate replacement roller device 115 and is composed of a second mounting seat 123a and a plurality of second rollers 123b arranged side by side thereon. The second rollers 123b are also made of high-quality materials to ensure that when the fixed pressure plate 121 needs to be replaced or other maintenance operations are carried out, the battery cells can move smoothly, avoiding unnecessary damage.
[0042] In this embodiment, in order to reduce the pressing gap and improve the accuracy and stability of the test, the present invention connects a nitrogen spring to the movable seat 112. The nitrogen spring utilizes the compressibility of nitrogen to provide stable elastic force, which can automatically adjust the distance between the movable pressure plate 111 and the fixed pressure plate 121 during the test, ensuring that the pressing gap between the two always remains consistent. This design not only improves the accuracy of the test but also effectively extends the service life of the equipment.
[0043] As Figure 2 shown, in this embodiment, the moving drive device adopts a high-precision servo electric cylinder to achieve the precise movement of the movable pressure plate 111. To further improve the stability of the servo electric cylinder, the present invention adds a wire rope 116 structure between the servo electric cylinder and the mounting frame 130. These wire ropes 116 are respectively arranged above and below the servo electric cylinder, forming a stable support and limiting effect. One end of each wire rope 116 is firmly connected to the servo electric cylinder, and the other end is connected to the mounting frame 130. This design effectively prevents the servo electric cylinder from shaking or shifting during high-speed movement or when bearing a large load, ensuring the smooth progress of the test.
[0044] As Figure 4 shown, in this embodiment, in order to ensure that the battery cells are always in the central position of the fixed pressure plate 121 during the test, the present invention adds a battery cell elevation plate 124 on the side of the fixed pressure plate 121 close to the movable pressure plate 111. The battery cell elevation plate 124 is designed to match the shape of the battery cell and can accurately support the bottom of the battery cell 400, making it parallel and centered with the fixed pressure plate 121. This design improves the accuracy of the test.
[0045] In this embodiment, in order to monitor the pick-up and placement status of the battery cells in real time, the present invention adds a through-beam sensor inside the fixed pressure plate 121. The through-beam sensor detects whether the battery cells have been taken away by emitting and receiving infrared light. When the battery cells are taken away, the through-beam sensor will immediately send a signal to the control system, and the control system will then stop the test or perform the next operation. This design improves the safety and automation level of the equipment.
[0046] As Figure 2As shown, in this embodiment, in order to cope with possible abnormal situations (such as cell short circuit, overheating, etc.) during the testing process, a fire-fighting device 150 is added to the present invention. This device includes a fire-fighting pushing mechanism 151 and a combustion chamber 152. The fire-fighting pushing mechanism 151 is arranged on one side of the fixed pressing plate 121 and is used to quickly push the cell into the combustion chamber 152 when an abnormal situation is detected; the combustion chamber 152 is arranged on one side of the fire-fighting pushing mechanism 151 and is used to safely handle the abnormal cell. This design ensures the rapid response and effective handling ability of the device in case of an emergency.
[0047] As Figure 4 As shown, in this embodiment, the charge-discharge automatic clamp 140, as a key component for clamping the cell electrode tabs, its performance and stability are crucial for the testing process. The charge-discharge automatic clamp 140 in the present invention includes clamping pieces 141 and a clamp opening and closing motor 142 for driving the clamping pieces to clamp the cell electrode tabs. The clamping pieces are made of high-strength and high-wear-resistant materials to ensure that they can firmly clamp the cell electrode tabs; the clamp opening and closing motor 142 is controlled by a high-precision servo motor or a stepper motor to ensure the rapid, accurate and reliable clamping action.
[0048] As Figure 2 As shown, in this embodiment, in order to facilitate the installation, maintenance and transportation of the device, a lifting ring 160 is added to the top of the mounting frame 130. The lifting ring 160 is made of high-strength materials and can withstand a large pulling force to ensure the stability and safety of the device during the lifting process. This design makes the movement and installation of the device more convenient and efficient.
[0049] In the description of the embodiments of the present application, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection" and "coupling" should be understood in a broad sense. For example, it can be a fixed connection, or an indirect connection through an intermediate medium, or the internal communication of two components or the interaction relationship between two components. 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 specific situations.
[0050] The device or element referred to in the embodiments of the present application or implied must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the embodiments of the present application. In the description of the embodiments of the present application, the meaning of "a plurality" is two or more unless otherwise specifically and precisely defined.
[0051] In the description, claims of the embodiments of the present application and the above-mentioned drawings, the terms "first", "second", "third", "fourth", etc. (if any) are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged under appropriate circumstances, so that the embodiments of the present application described herein, for example, can be implemented in an order other than those illustrated or described herein. In addition, the terms "may include" and "have" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device that includes a series of steps or units does not necessarily have to be limited to those steps or units clearly listed, but may include other steps or units not clearly listed or inherent to these processes, methods, products or devices.
[0052] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the embodiments of the present application, and not to limit them. Although the technical solutions of the present application have been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some or all of the technical features. These modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.
Claims
1. A horizontal constant force thickness tester, comprising a horizontal thickness measuring mechanism, an explosion-proof housing and a control unit. The horizontal thickness measuring mechanism is arranged inside the explosion-proof housing, and the control unit is arranged on one side of the explosion-proof housing. It is characterized in that: The horizontal thickness measuring mechanism includes a movable detection module, a fixed detection module, a mounting frame, and a charging and discharging automatic clamp, where the movable detection module is arranged on the left side of the mounting frame, the fixed detection module is arranged on the right side of the mounting frame, and the charging and discharging automatic clamp is arranged on one side of the fixed detection module for clamping the electrode tab of the battery cell. The movable detection module includes a movable pressure plate, a movable seat, a slide rail, and a lateral movement driving device. The movable pressure plate is installed on the side of the movable seat close to the fixed detection module. The movable seat is installed on the slide rail, and the lateral movement driving device drives the movable seat to drive the movable pressure plate to move horizontally along the slide rail. The fixed detection module includes a fixed pressure plate and a pressure sensor. The pressure sensor is arranged on one side of the fixed pressure plate.
2. The horizontal constant-force thickness tester according to claim 1, wherein: One side of the movable pressure plate is provided with a first pressure plate replacement roller device, and the first pressure plate replacement roller device includes a first mounting seat and a plurality of first rollers arranged side by side on the first mounting seat.
3. A horizontal constant-force thickness tester according to claim 1, characterized in that: One side of the fixed pressure plate is provided with a second pressure plate replacement roller device, and the second pressure plate replacement roller device includes a second mounting seat and a plurality of second rollers arranged side by side on the second mounting seat.
4. A horizontal constant-force thickness tester according to claim 1, characterized in that: A nitrogen spring is connected to the movable seat.
5. A horizontal constant force thickness tester according to claim 1, characterized in that: The lateral movement driving device is a servo electric cylinder. A steel wire rope is arranged between the servo electric cylinder and the mounting frame. The steel wire ropes are respectively arranged above and below the servo electric cylinder. One end of each steel wire rope is connected to the servo electric cylinder, and the other end is connected to the mounting frame.
6. The horizontal constant force thickness tester according to claim 1, characterized in that: A battery cell heightening plate is arranged on the side surface of the fixed pressure plate close to the movable pressure plate.
7. A horizontal constant-force thickness tester according to claim 1, characterized in that: A pair of light sensors are arranged inside the fixed pressure plate to detect whether the battery cell is taken away.
8. A horizontal constant-force thickness testing machine according to claim 1, characterized in that: It further includes a fire protection device. The fire protection device includes a fire pushing mechanism and a combustion box. The fire pushing mechanism is arranged on one side of the fixed pressure plate, and the combustion box is arranged on one side of the fire pushing mechanism. The fire pushing mechanism is used to push the abnormal battery cell into the combustion box.
9. The horizontal constant force thickness tester according to claim 1, wherein: The charging and discharging automatic clamp includes clamping pieces and a clamp opening and closing motor for driving the clamping pieces to clamp the electrode tab of the battery cell.
10. The horizontal constant force thickness tester according to claim 1, characterized in that: A lifting ring is arranged on the top of the mounting frame.