Negative pressure cup assembly
By connecting the negative pressure cups as a whole and setting up a guiding mechanism, the problems of time-consuming manual operation and inaccurate positioning in lithium battery production are solved, realizing efficient and low-cost negative pressure cup assembly and improving production efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- ZHEJIANG HANGKE TECH
- Filing Date
- 2026-03-19
- Publication Date
- 2026-05-01
AI Technical Summary
Traditional lithium battery negative pressure cup production suffers from problems such as time-consuming manual operation, large errors, high costs, difficult maintenance, and inaccurate positioning, especially in the production of 46 large cylindrical lithium batteries.
The individual negative pressure cups are connected as a whole, and a guiding mechanism is set up to ensure that the external battery and the negative pressure nozzle are accurately aligned. Corrosion-resistant hoses and lock nuts are used to strengthen the connection and reduce processing costs.
It improves the alignment accuracy of the negative pressure cup, simplifies the assembly and debugging process, reduces production costs, and increases work efficiency.
Smart Images
Figure CN121965077A_ABST
Abstract
Description
Technical Field
[0001] This invention belongs to the field of battery manufacturing technology, specifically relating to a negative pressure cup assembly and its assembly process. Background Technology
[0002] In the negative pressure manufacturing of lithium batteries, the traditional process of manually drawing and injecting liquid electrolyte is time-consuming and prone to errors. Negative pressure cup technology enables automated drawing and control, improving production efficiency while reducing human error and enhancing product quality. With the rapid development of the lithium battery industry, the demand for 46mm cylindrical lithium batteries is increasing. Traditional standalone negative pressure cups suffer from high costs, difficult maintenance, assembly difficulties, and inaccurate positioning. Summary of the Invention
[0003] To address the aforementioned problems, this invention proposes a negative pressure cup assembly. The concept is to connect individual negative pressure cups into a whole and to set up a guiding mechanism to ensure accurate alignment between the external battery and the negative pressure nozzle, thereby reducing the processing cost of the negative pressure cup assembly.
[0004] A negative pressure cup assembly includes a horizontal negative pressure mounting base plate 3, which is connected to a lower negative pressure suction nozzle mounting strip 9 via a vertical needle plate middle upright plate 1.
[0005] The bottom of the negative pressure mounting base plate 3 is provided with several negative pressure cup mold opening parts 7 along the horizontal direction; the negative pressure suction nozzle mounting strip 9 is connected with several suction rods 8 along the horizontal direction, and the bottom of the suction rods 8 is equipped with negative pressure suction nozzles 10; the negative pressure cup mold opening parts 7 and the negative pressure suction nozzles 10 are connected by a corrosion-resistant hose 2.
[0006] At the bottom of the negative pressure suction nozzle mounting strip 9, between adjacent suction rods 8, there is a battery guide block 5. The battery guide block 5 can guide the external battery 6 so that the liquid injection port at the top of the external battery 6 is directly facing the negative pressure suction nozzle 10.
[0007] More specifically, the corrosion-resistant hose 2 is normally compressed downward by the negative pressure mounting base plate 3 and installed at an angle, applying a downward thrust to the negative pressure suction nozzle 10.
[0008] More specifically, the corrosion-resistant hose 2 and the negative pressure mounting base plate 3, and the corrosion-resistant hose 2 and the suction rod 8 are reinforced with lock nut connectors 4.
[0009] During operation, the external mechanism presses the battery from bottom to top against the negative pressure nozzle 10. Due to the presence of the battery guide block 5, the battery automatically aligns with the negative pressure nozzle, completing the liquid injection.
[0010] The beneficial effects of this invention are: 1. It improves the working accuracy of the negative pressure cup alignment and solves the problem of error gap between the negative pressure cup and the battery; 2. The mold opening form of the negative pressure cup makes assembly and debugging simple; 3. It reduces processing costs and improves work efficiency. Attached Figure Description
[0011] Figure 1 This is a structural diagram of a negative pressure cup assembly according to the present invention.
[0012] Figure 2 This is a structural diagram of the negative pressure cup mold opening component of the present invention.
[0013] Figure 3 This is a structural diagram of the suction rod of the present invention.
[0014] Figure 4 This is a structural diagram of the negative pressure suction nozzle mounting strip of the present invention.
[0015] Figure 5 This is a structural diagram of the negative pressure suction nozzle of the present invention. Detailed Implementation
[0016] The specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit the scope of the present invention.
[0017] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and are not intended to 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 invention.
[0018] 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 indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.
[0019] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.
[0020] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.
[0021] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.
[0022] The present invention will now be described in detail with reference to the accompanying drawings and exemplary embodiments.
[0023] A negative pressure cup assembly includes a horizontal negative pressure mounting base plate 3, which is connected to a lower negative pressure suction nozzle mounting strip 9 via a vertical needle plate middle upright plate 1.
[0024] The bottom of the negative pressure mounting base plate 3 is provided with several negative pressure cup mold opening parts 7 along the horizontal direction; the negative pressure suction nozzle mounting strip 9 is connected with several suction rods 8 along the horizontal direction, and the bottom of the suction rods 8 is equipped with negative pressure suction nozzles 10; the negative pressure cup mold opening parts 7 and the negative pressure suction nozzles 10 are connected by a corrosion-resistant hose 2.
[0025] At the bottom of the negative pressure suction nozzle mounting strip 9, between adjacent suction rods 8, there is a battery guide block 5. The battery guide block 5 can guide the external battery 6 so that the liquid injection port at the top of the external battery 6 is directly facing the negative pressure suction nozzle 10.
[0026] More specifically, the corrosion-resistant hose 2 is normally compressed downward by the negative pressure mounting base plate 3 and installed at an angle, applying a downward thrust to the negative pressure suction nozzle 10.
[0027] More specifically, the corrosion-resistant hose 2 and the negative pressure mounting base plate 3, and the corrosion-resistant hose 2 and the suction rod 8 are reinforced with lock nut connectors 4.
[0028] During operation, the external mechanism presses the battery from bottom to top against the negative pressure nozzle 10. Due to the presence of the battery guide block 5, the battery automatically aligns with the negative pressure nozzle, completing the liquid injection.
[0029] The beneficial effects of this invention are: 1. It improves the working accuracy of the negative pressure cup alignment and solves the problem of error gap between the negative pressure cup and the battery; 2. The mold opening form of the negative pressure cup makes assembly and debugging simple; 3. It reduces processing costs and improves work efficiency.
[0030] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.
Claims
1. A negative pressure cup assembly, characterized in that: Includes a horizontal negative pressure mounting base plate (3), which is connected to the lower negative pressure suction nozzle mounting strip (9) through a vertical needle plate middle upright plate (1). The bottom of the negative pressure mounting base plate (3) is provided with several negative pressure cup mold opening parts (7) along the horizontal direction; the negative pressure suction nozzle mounting strip (9) is connected with several suction rods (8) along the horizontal direction, and the bottom of the suction rods (8) is provided with negative pressure suction nozzles (10); the negative pressure cup mold opening parts (7) and the negative pressure suction nozzles (10) are connected by a corrosion-resistant hose (2); At the bottom of the negative pressure suction nozzle mounting strip (9), a battery guide block (5) is provided between adjacent suction rods (8). The battery guide block (5) can guide the external battery (6) so that the liquid injection port at the top of the external battery (6) is directly facing the negative pressure suction nozzle (10).
2. The negative pressure cup assembly according to claim 1, characterized in that: The corrosion-resistant hose (2) is normally compressed downward by the negative pressure mounting base plate (3) and installed at an angle, applying a downward thrust to the negative pressure suction nozzle (10).
3. The negative pressure cup assembly according to claim 1, characterized in that: The corrosion-resistant hose (2) and the negative pressure mounting base plate (3) are reinforced with lock nut connectors (4) between the corrosion-resistant hose (2) and the suction rod (8).