Integrated frame structure for battery formation device
The vibration problem of the lithium-ion battery formation device was solved by the integrated frame structure, which improved the operating accuracy and reliability and reduced the failure rate and maintenance cost.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENZHEN ZHIJIANENG AUTOMATION CO LTD
- Filing Date
- 2025-04-03
- Publication Date
- 2026-05-22
AI Technical Summary
The existing lithium-ion battery formation equipment has a split frame structure for the frame and needle bed support, which results in large vibrations and affects the accuracy and reliability of the equipment operation.
It adopts an integrated frame structure, with the frame and load-bearing frame molded as one piece, which improves overall rigidity, reduces vibration, and ensures movement accuracy and stability.
It improves the operating accuracy and reliability of the battery formation device, reduces the failure rate and maintenance costs, and is suitable for high-load environments.
Smart Images
Figure CN224266987U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of lithium-ion battery manufacturing technology, and in particular to an integrated frame structure for a battery formation device. Background Technology
[0002] The needle bed of the formation cabinet is a key component used to connect battery cells and perform charge-discharge tests. Its working principle is as follows: the battery cell is placed on the needle bed, and a positioning device ensures its alignment with the probes; the probes, under pressure control, contact the positive and negative terminals of the battery cell, forming an electrical connection; current is applied to the battery cell through the probes to charge and discharge, activating the cell and testing its performance. The probes monitor parameters such as voltage and current in real time, and the data is used to evaluate the cell's condition. In actual production operations, the inventors discovered that the frame and needle bed support of the formation cabinet are assembled from profiles fastened with screws, resulting in a modular, disassembled frame structure. Formation cabinets typically require high-precision operation, and if the connectors between the various profiles of the frame and needle bed support become loose or fail, it can cause significant vibration in the formation cabinet, affecting the equipment's operational accuracy and reliability.
[0003] Therefore, a new technical solution needs to be researched to address the above problems. Utility Model Content
[0004] In view of this, the present invention addresses the deficiencies of the existing technology and its main purpose is to provide an integrated frame structure for a battery formation device, effectively solving the technical defects in the existing technology where the formation cabinet suffers from poor operating accuracy and reliability due to vibration.
[0005] To achieve the above objectives, the present invention adopts the following technical solution: an integrated frame structure for a battery formation device, including a cabinet and a needle bed module installed on the cabinet; the cabinet includes a frame and a protective plate and a protective door installed on the outer surface of the frame, the needle bed module includes a support frame that can be moved up and down and installed on the frame, a needle bed assembly installed on the support frame, and an actuator for driving the support frame to move up and down, the frame and the support frame are an integrated structure.
[0006] The advantages of the integrated frame structure of the battery formation apparatus provided in this application are as follows: Compared with the prior art, by setting up an integrated frame and support frame, on the one hand, the overall rigidity of the frame and support frame can be improved, the vibration of the battery formation apparatus during operation can be reduced, and the stability and movement accuracy of the support frame relative to the frame displacement can be improved. This allows the support frame to accurately move the needle bed assembly to contact the blade battery for formation when the battery formation apparatus performs formation operations on thin blade batteries. On the other hand, it can prevent the frame and support frame from becoming loose or even detached, making it suitable for high-load operating environments. At the same time, it can reduce the failure rate caused by the loosening of the frame and support frame, and reduce maintenance and repair costs.
[0007] As a preferred embodiment, the frame includes an integrally formed outer frame and integrally formed auxiliary frames on the left and right sides inside the outer frame, with protective plates and protective doors installed on the outer surface of the outer frame.
[0008] As a preferred embodiment, the support frame includes an upper support frame that can be moved up and down and installed on the auxiliary frame, and a lower support frame that can be moved up and down and installed on the auxiliary frame. The upper support frame and the lower support frame are spaced vertically to form a battery formation area.
[0009] The actuator includes an upper actuator cylinder for driving the upper support frame to move up and down and a lower actuator cylinder for driving the lower support frame to move up and down.
[0010] As a preferred embodiment, the auxiliary frame on the left is equipped with a first limiting plate, which extends forward and backward; the auxiliary frame on the right is equipped with a second limiting plate, which also extends forward and backward.
[0011] The first limiting plate has a first notch at its front end, which extends through the left and right sides of the first limiting plate; the second limiting plate has a second notch at its rear end, which extends through the left and right sides of the second limiting plate.
[0012] The first limiting plate has a first photoelectric sensor on the side opposite to the second limiting plate, and the first photoelectric sensor is exposed in the first notch; the second limiting plate has a second photoelectric sensor on the side opposite to the first limiting plate, and the second through sensor is exposed in the second notch, and the first photoelectric sensor can work in opposition to the second photoelectric sensor.
[0013] As a preferred embodiment, the needle bed assembly includes an upper needle bed assembly mounted on an upper support frame and a lower needle bed assembly mounted on a lower support frame, with each pin of the upper needle bed assembly and each pin of the lower needle bed assembly facing the battery formation area.
[0014] As a preferred option, the auxiliary frame is integrally formed with an inverted "U"-shaped support plate, and the inverted "U"-shaped support plate has a first guide hole seat at both the front and rear ends; the upper support frame has a first guide column at both the front and rear ends, and the first guide column can be movably installed in the first guide hole seat.
[0015] As a preferred embodiment, the auxiliary frame is provided with second guide holes on the front and rear sides, and the lower support frame is provided with second guide posts at the front and rear ends, with the second guide posts being movably installed in the second guide holes.
[0016] As a preferred solution, the outer frame has upper and lower wiring channels on both the left and right sides. The upper and lower wiring channels can hide the cables and bypass them from the battery formation area.
[0017] As a preferred embodiment, the bottom of the outer frame is an air inlet, which is equipped with a blower that can draw outside air into the outer frame; the top of the outer frame is an air outlet, which is equipped with a blower that can expel the air from the inside of the outer frame.
[0018] As a preferred option, an injection pump and an injection tank are installed inside the outer frame. Attached Figure Description
[0019] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0020] Figure 1 This is a three-dimensional structural diagram of the integrated frame structure of the battery formation device provided in the embodiments of this application;
[0021] Figure 2 yes Figure 1 A partial structural schematic diagram of the integrated frame structure of the battery formation device shown.
[0022] Figure 3 yes Figure 2 The front view of the integrated frame structure of the battery formation device shown;
[0023] Figure 4 yes Figure 2 Another perspective three-dimensional structural diagram of the integrated frame structure of the battery formation device shown;
[0024] Figure 5 yes Figure 2 A schematic diagram of the three-dimensional structure of the outer frame of the integrated frame structure of the battery formation device shown.
[0025] Figure 6 yes Figure 2 A three-dimensional structural diagram of the needle bed assembly of the integrated frame structure of the battery formation device is shown.
[0026] The following are the labeling elements in the figure:
[0027] 100. Integrated frame structure of the battery formation device;
[0028] 10. Cabinet; 11. Outer frame; 12. Auxiliary frame; 121. First limiting plate; 1211. First notch; 1212. First photoelectric sensor; 1213. Limiting protrusion; 122. Second limiting plate; 1221. Second notch; 1222. Second photoelectric sensor; 123. Inverted U-shaped support plate; 124. First guide hole seat; 125. Second guide hole; 13. Protective plate; 14. Protective door; 15. Wiring channel; 16. Air inlet; 17. Air outlet;
[0029] 20. Needle bed module; 21. Upper support frame; 211. First guide post; 22. Lower support frame; 221. Second guide post; 23. Upper actuator cylinder; 24. Lower actuator cylinder; 25. Upper needle bed assembly; 26. Lower needle bed assembly. Detailed Implementation
[0030] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.
[0031] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.
[0032] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.
[0033] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.
[0034] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments.
[0035] Please refer to the following: Figures 1 to 6 The integrated frame structure 100 of the battery formation apparatus provided in this application embodiment will now be described. The integrated frame structure 100 of the battery formation apparatus includes: a cabinet 10 and a needle bed module 20.
[0036] The cabinet 10 includes a rack and a protective plate 13 and a protective door 14 installed on the outer surface of the rack. The needle bed module 20 includes a support frame that can be moved up and down and is installed on the rack, a needle bed assembly installed on the support frame, and an actuator for driving the support frame to move up and down. The rack and the support frame are an integrated structure.
[0037] Specifically, by setting up an integrated frame and support frame, on the one hand, the overall rigidity of the frame and support frame can be improved, the vibration of the battery formation device during operation can be reduced, and the stability and movement accuracy of the support frame relative to the frame can be improved. This allows the support frame to accurately move the needle bed assembly to contact the blade battery for formation when the battery formation device is performing formation operations on thin blade batteries. On the other hand, it can prevent the frame and support frame from becoming loose or even detached, making it suitable for high-load operating environments. At the same time, it can reduce the failure rate caused by the loosening of the frame and support frame, and reduce maintenance and repair costs.
[0038] It should be noted that the integrated structure of the frame and the support frame can be cast from metal materials (such as cast iron, aluminum alloy or steel), welded from metal materials (such as cast iron, aluminum alloy or steel), or fused together from metal materials (such as cast iron, aluminum alloy or steel) to form an integrated structure.
[0039] In some embodiments, the frame includes an integrally formed outer frame 11 and auxiliary frames 12 integrally formed on the left and right sides inside the outer frame 11. Protective plates 13 and protective doors 14 are installed on the outer surface of the outer frame 11. Preferably, the protective door 14 is installed on the left or right side of the outer frame 11, and the area of the outer frame 11 other than the protective door 14 is covered by protective plates 13.
[0040] Specifically, the support frame includes an upper support frame 21 that can be moved up and down and is mounted on the auxiliary frame 12, and a lower support frame 22 that can be moved up and down and is mounted on the auxiliary frame 12. The upper support frame 21 and the lower support frame 22 are spaced vertically to form a battery formation area. The actuator includes an upper actuator cylinder 23 for driving the upper support frame 21 to move up and down, and a lower actuator cylinder 24 for driving the lower support frame 22 to move up and down.
[0041] Furthermore, the left auxiliary frame 12 is equipped with a first limiting plate 121, which extends forward and backward; the right auxiliary frame 12 is equipped with a second limiting plate 122, which also extends forward and backward; the front end of the first limiting plate 121 has a first notch 1211, which penetrates the left and right sides of the first limiting plate 121; the rear end of the second limiting plate 122 has a second notch 1221, which penetrates the left and right sides of the second limiting plate 122; the first limiting plate 121 has a first photoelectric sensor 1212 on the side opposite to the second limiting plate 122, which is exposed in the first notch 1211; the second limiting plate 122 has a second photoelectric sensor 1222 on the side opposite to the first limiting plate 121, which is exposed in the second notch 1221; the first photoelectric sensor 1212 can work in opposition to the second photoelectric sensor 1222. The needle bed assembly includes an upper needle bed assembly mounted on the upper support frame 21 and a lower needle bed assembly mounted on the lower support frame 22. Each pin of the upper needle bed assembly and each pin of the lower needle bed assembly are arranged facing the battery formation area.
[0042] More specifically, limiting protrusions are installed at both ends of the opposite sides of the first limiting plate 121 and the second limiting plate 122. The limiting protrusions can limit the blade battery tray material entering the battery formation area. Then, the first photoelectric sensor 1212 and the second photoelectric sensor 1222 identify the blade battery tray material entering the battery formation area and send the signal to the battery formation device control system. The control system controls the upper actuator cylinder 23 to drive the upper support frame 21 to move down, and the lower actuator cylinder 24 to drive the lower support frame 22 to move up, so that the upper needle bed assembly 2 5. The pins of the lower needle bed assembly 26 are connected to the positive and negative terminals of the blade battery. Based on the battery type and process requirements, parameters such as charging and discharging current, voltage, and time are set. The battery is charged with a set constant current until the battery voltage reaches a preset value. Once the battery voltage reaches the preset value, the system switches to constant voltage charging mode, maintaining a constant voltage while gradually decreasing the current until charging is complete. The battery is then discharged with a set constant current until the battery voltage drops to a preset cutoff voltage. When the battery voltage reaches the cutoff voltage, discharging stops to prevent over-discharge. This completes one battery formation operation.
[0043] In other embodiments, the auxiliary frame 12 is integrally formed with an inverted U-shaped support plate 123, and the inverted U-shaped support plate 123 has first guide hole seats 124 at both ends. The upper support frame 21 has first guide posts 211 at both ends, and the first guide posts 211 are movably installed in the first guide hole seats 124. The auxiliary frame 12 has second guide holes 125 on both sides, and the lower support frame 22 has second guide posts 221 at both ends, and the second guide posts 221 are movably installed in the second guide holes 125. This structure can further improve the reliability and stability of the displacement of the upper support frame 21 and the lower support frame 22, ensuring that each pin of the upper needle bed assembly 25 and the lower needle bed assembly 26 can accurately contact the positive and negative terminals of the blade battery.
[0044] Specifically, the outer frame 11 has upper wiring channels 15 and lower wiring channels 15 on both the left and right sides inside. The upper and lower wiring channels 15 can hide the cables and bypass them from the battery formation area. The cables are used to connect the battery and various pins. The reasonable arrangement of the wiring channels 15 and the battery formation area can ensure that the cables will not be scratched or torn when the blade battery tray is loaded and unloaded, and ensure that the battery formation device can reliably carry out the formation operation.
[0045] More specifically, the bottom of the outer frame 11 has an air inlet 16, which is equipped with a blower to draw outside air into the outer frame 11; the top of the outer frame 11 has an air outlet 17, which is equipped with a blower to expel air from the interior of the outer frame 11. The battery is mounted on the top of the outer frame 11, allowing airflow to sequentially remove heat from the battery formation area and the battery mounting area, ensuring that the battery formation area is kept at a stable operating temperature for charging and discharging operations.
[0046] In other embodiments, an injection pump and an injection tank (not shown in the figure) are installed inside the outer frame 11. The injection pump and injection tank are located on the bottom left side of the outer frame 11, and the injection pump and injection tank can be adapted to the configuration requirements of different manufacturers.
[0047] The above are merely preferred embodiments of the present utility model, and only specifically describe the technical principles of the present utility model. These descriptions are only for explaining the principles of the present utility model and should not be construed as limiting the scope of protection of the present utility model in any way. Based on this explanation, any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model, as well as other specific embodiments of the present utility model that can be conceived by those skilled in the art without creative effort, should be included within the scope of protection of the present utility model.
Claims
1. An integrated frame structure for a battery formation device, comprising a cabinet (10) and a bed of needles module (20) mounted on the cabinet (10), characterized in that, The cabinet (10) includes a rack and a protective plate (13) and a protective door (14) installed on the outer surface of the rack. The needle bed module (20) includes a support frame that can be moved up and down and is installed on the rack, a needle bed assembly installed on the support frame, and an actuator for driving the support frame to move up and down. The rack and the support frame are an integrated structure.
2. The integrated frame structure of the battery formation device according to claim 1, characterized in that, The frame includes an integrally formed outer frame (11) and an integrally formed auxiliary frame (12) on the left and right sides inside the outer frame (11). A protective plate (13) and a protective door (14) are installed on the outer surface of the outer frame (11).
3. The integrated frame structure of the battery formation device according to claim 2, characterized in that, The support frame includes an upper support frame (21) that can be moved up and down and installed on the auxiliary frame (12) and a lower support frame (22) that can be moved up and down and installed on the auxiliary frame (12). The upper support frame (21) and the lower support frame (22) are spaced up and down to form a battery formation area. The actuator includes an upper actuator cylinder (23) for driving the upper support frame (21) to move up and down and a lower actuator cylinder (24) for driving the lower support frame (22) to move up and down.
4. The integrated frame structure of the battery formation device according to claim 3, characterized in that, The auxiliary frame (12) on the left is equipped with a first limiting plate (121), which extends forward and backward; the auxiliary frame (12) on the right is equipped with a second limiting plate (122), which extends forward and backward. The front end of the first limiting plate (121) is provided with a first notch (1211), which penetrates the left and right sides of the first limiting plate (121); the rear end of the second limiting plate (122) is provided with a second notch (1221), which penetrates the left and right sides of the second limiting plate (122). The first limiting plate (121) has a first photoelectric sensor (1212) on the side opposite to the second limiting plate (122), and the first photoelectric sensor is exposed in the first notch (1211); the second limiting plate (122) has a second photoelectric sensor (1222) on the side opposite to the first limiting plate (121), and the second through sensor is exposed in the second notch (1221). The first photoelectric sensor (1212) can work in opposition to the second photoelectric sensor (1222).
5. The integrated frame structure of the battery formation device according to claim 4, characterized in that, The needle bed assembly includes an upper needle bed assembly mounted on the upper support frame (21) and a lower needle bed assembly mounted on the lower support frame (22), with each pin of the upper needle bed assembly and each pin of the lower needle bed assembly facing the battery formation area.
6. The integrated frame structure of the battery formation apparatus according to any one of claims 3-5, characterized in that, The auxiliary frame (12) is integrally formed with an inverted "U" shaped support plate (123), and the inverted "U" shaped support plate (123) has a first guide hole seat (124) at both the front and rear ends; the upper support frame (21) has a first guide column (211) at both the front and rear ends, and the first guide column (211) can be movably installed in the first guide hole seat (124).
7. The integrated frame structure of the battery formation device according to claim 6, characterized in that, The auxiliary frame (12) has second guide holes (125) on both the front and rear sides, and the lower support frame (22) has second guide posts (221) at both the front and rear ends. The second guide posts (221) can be movably installed in the second guide holes (125).
8. The integrated frame structure of the battery formation device according to claim 3, 4, 5, or 7, characterized in that, The outer frame (11) has an upper wiring channel (15) and a lower wiring channel (15) on both the left and right sides inside. The upper wiring channel (15) and the lower wiring channel (15) can hide the cable and bypass it to avoid the battery formation area.
9. The integrated frame structure of the battery formation device according to claim 8, characterized in that, The bottom of the outer frame (11) is the air inlet (16), which is equipped with a blower that can draw outside air into the interior of the outer frame (11) through the air inlet (16); the top of the outer frame (11) is the air outlet (17), which is equipped with a blower that can discharge the air inside the outer frame (11).
10. The integrated frame structure of the battery formation device according to claim 8, characterized in that, The outer frame (11) is equipped with an injection pump and an injection tank.