Suction and cleaning integrated device

Abstract

The utility model discloses a suction and cleaning integrated device, and relates to the technical field of battery production and manufacturing equipment. Comprising a negative pressure cup, a communicating pipe, a cleaning agent container and a pressure control assembly, the communicating pipe is communicated with the cleaning agent container and the negative pressure cup, the communicating pipe is further communicated with the pressure control assembly and the negative pressure cup, a cleaning agent in the cleaning agent container flows into and cleans the negative pressure cup through the communicating pipe, and the pressure control assembly is used for producing negative pressure. And negative pressure generated by the pressure control assembly acts on the negative pressure cup through the communicating pipe, so that the negative pressure cup sucks gas generated during formation treatment of the battery. The suction and cleaning integrated device disclosed by the utility model not only can be used for sucking gas generated in the battery formation process under negative pressure, but also can be used for automatically cleaning the negative pressure cup for suction and the communicating pipeline communicated with the negative pressure cup, so that the pipeline blockage caused by electrolyte residue in the negative pressure cup or the communicating pipeline is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of battery production and manufacturing equipment, in particular to an integrated suction and cleaning device. Background Art

[0002] Formation is a critical process in battery manufacturing. A formation cabinet is the equipment used to perform this process. Only after formation is complete can the battery begin normal charging and discharging. The formation principle is that the initial charge activates the active substances within the battery and simultaneously forms a dense SEI film on the anode (cathode) surface, thereby protecting the stability of the entire chemical interface.

[0003] Among them, gas will continue to be generated during the battery formation process. These gases will flow into the formation negative pressure cup together with part of the electrolyte in the battery under the action of negative pressure suction, and part of the electrolyte will even enter the formation negative pressure cup and flow into the negative pressure suction pipe under the action of negative pressure suction; when the formation is completed, the negative pressure suction is released, and most of the electrolyte can flow back into the battery, but a small amount of electrolyte will still remain in the negative pressure suction pipe and / or the formation negative pressure cup, and this part of the electrolyte will further weather and crystallize in the negative pressure suction pipe and / or the formation negative pressure cup, thereby blocking the negative pressure suction pipe and / or the formation negative pressure cup, affecting the performance of the formation cabinet. Utility Model Content

[0004] The utility model provides an integrated suction and cleaning device, which can be used for negative pressure suction of the gas generated in the battery formation process, and can also automatically clean the negative pressure cup used for suction and the connecting pipe connected thereto, so as to avoid electrolyte residue in the negative pressure cup or the connecting pipe, causing pipe blockage, so as to solve the above-mentioned technical problems.

[0005] The technical solution of the utility model for solving the above problems is: to provide an integrated suction and cleaning device, including a negative pressure cup, a connecting pipe, a cleaning agent container, and a pressure control component. The connecting pipe connects the cleaning agent container and the negative pressure cup, and the connecting pipe also connects the pressure control component and the negative pressure cup. The cleaning agent in the cleaning agent container flows into and cleans the negative pressure cup through the connecting pipe. The pressure control component is used to create negative pressure. The negative pressure created by the pressure control component acts on the negative pressure cup through the connecting pipe, so that the negative pressure cup sucks the gas generated by the battery during the formation process.

[0006] Furthermore, a vent pipe is provided at the upper end of the cleaning agent container, and the connecting pipe is connected to the lower part of the cleaning agent container. Dry gas is injected into the cleaning agent container along the vent pipe to push the cleaning agent to flow into the negative pressure cup along the connecting pipe.

[0007] Furthermore, the connecting pipe includes a main pipe and a plurality of first branch pipes connected to the main pipe, and each of the first branch pipes is connected to a plurality of negative pressure cups.

[0008] Furthermore, a first pipeline valve is provided at the pipe end of each of the first branch pipes connected to the main pipe.

[0009] Furthermore, the connecting pipe further includes a second branch pipe, the second branch pipe is connected to the lower part of the cleaning agent container, and a second pipeline valve is further provided on the second branch pipe.

[0010] Furthermore, the connecting pipe further includes an air suction branch pipe, and the connecting pipe is connected to the pressure control component through the air suction branch pipe.

[0011] Furthermore, the connecting pipe also includes an air outlet branch pipe and an intermediate container. The air outlet branch pipe is connected to the pressure control component. The intermediate container is arranged in series on both the air intake branch pipe and the air outlet branch pipe. The intermediate container is used to recover the cleaning agent that flows back along the air intake branch pipe; the pressure control component is also used to create positive pressure so that the cleaning agent in the intermediate container flows along the air outlet branch pipe into the negative pressure cup.

[0012] Furthermore, the intermediate container includes a gas-liquid separator and a residual liquid container. The gas-liquid separator is arranged in series on the air intake branch pipe, and the residual liquid container is arranged in series on the air outlet branch pipe. The gas-liquid separator is also connected to the residual liquid container, and the residual liquid container is used to collect the liquid separated by the gas-liquid separator.

[0013] Furthermore, a first one-way valve is provided on the air outlet branch pipe, and the first one-way valve is used to limit the cleaning agent in the intermediate container to flow into the negative pressure cup, and to limit the cleaning agent to be sucked into the intermediate container along the air intake branch pipe.

[0014] Furthermore, the device further comprises a recovery container and a recovery pipe. The recovery container is connected to the intermediate container through the recovery pipe. A third pipe valve is also provided on the recovery pipe.

[0015] Furthermore, the negative pressure cup includes a closed cup body, a negative pressure nozzle, a second one-way valve, and a nozzle valve. The connecting pipe is connected to the upper end of the closed cup body, the negative pressure nozzle is arranged at the lower end of the closed cup body, the second one-way valve is arranged at the top of the closed cup body, and the nozzle valve is arranged on the negative pressure nozzle.

[0016] Furthermore, the cleaning agent is a dimethyl carbonate solution.

[0017] Furthermore, the air intake branch pipe and the air outlet branch pipe are first merged into a confluence pipe, and the confluence pipe is then connected to the main pipe. A fourth pipeline valve is also provided on the confluence pipe.

[0018] Beneficial effects of the utility model:

[0019] The utility model provides an integrated suction and cleaning device, in which the negative pressure cup can be used to suck the gas generated during the battery formation process under the control of the pressure control component; in addition, after the gas suction operation is completed, the technician can also introduce the cleaning agent in the cleaning agent container into the connecting pipe and the negative pressure cup to effectively clean the residual electrolyte in the connecting pipe and the negative pressure cup, ensuring that the connecting pipe and the negative pressure cup are unobstructed.

[0020] In addition, an air intake branch pipe, an air outlet branch pipe, and an intermediate container are provided between the pressure control component and the connecting pipe. When cleaning the negative pressure cup and the connecting pipe, the pressure control component creates negative pressure to control the cleaning agent to flow from the negative pressure cup along the connecting pipe into the intermediate container, thereby realizing the cleaning agent recovery operation.

[0021] Moreover, the pressure control component also creates positive pressure to further push the cleaning agent in the intermediate container to flow into the negative pressure cup, so as to achieve the operation of repeatedly cleaning the negative pressure cup and improve the cleaning effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The accompanying drawings, which are incorporated into and constitute a part of the specification, illustrate embodiments of the present invention and, together with the description, serve to explain the principles of the present invention. In these drawings, similar reference numerals are used to represent similar elements. The drawings described below are some embodiments of the present invention, but not all. Those skilled in the art can derive other drawings from these drawings without inventive effort.

[0023] Figure 1 Schematic diagram of the overall structure of the integrated suction and cleaning device of this embodiment;

[0024] Figure 2 Schematic diagram of the structure of the negative pressure cup of this embodiment;

[0025] 1-negative pressure cup, 11-negative pressure nozzle, 12-closed cup body, 13-second one-way valve, 14-nozzle valve;

[0026] 21-main pipe, 22-first branch pipe, 23-first pipeline valve, 24-second branch pipe, 25-second pipeline valve, 26-intake branch pipe, 27-outlet branch pipe, 28-intermediate container, 29-first one-way valve;

[0027] 3-cleaning agent container, 31-vent pipe;

[0028] 4-pressure control assembly;

[0029] 5-recovery container, 51-recovery pipeline, 52-third pipeline valve. DETAILED DESCRIPTION

[0030] In this specification, directional terms such as up, down, left, right, front, back, front, back, top, and bottom, which are mentioned or may be mentioned, are defined relative to the configurations shown in the accompanying drawings. The terms "inside" and "outside" refer to directions toward or away from the geometric center of a specific component, respectively. These are relative concepts and may vary depending on the location and usage of the component. Therefore, these or other directional terms should not be construed as restrictive.

[0031] See also Figure 1 、 Figure 2 A specific embodiment of the utility model is an integrated suction and cleaning device, including a negative pressure cup 1, a connecting pipe, a cleaning agent container 30, and a pressure control component 4. The connecting pipe connects the cleaning agent container 30 and the negative pressure cup 1, and the connecting pipe also connects the pressure control component 4 and the negative pressure cup 1. The cleaning agent in the cleaning agent container 30 flows into and cleans the negative pressure cup 1 through the connecting pipe. The pressure control component 4 is used to create negative pressure. The negative pressure created by the pressure control component 4 acts on the negative pressure cup 1 through the connecting pipe, so that the negative pressure cup 1 sucks the gas generated by the battery during the formation process.

[0032] Specifically, in this embodiment, the negative pressure cup 1 includes a closed cup body 12, a negative pressure suction nozzle 11, a second one-way valve 13, and a suction nozzle valve 14. The connecting pipe is connected to the upper end of the closed cup body 12, the negative pressure suction nozzle 11 is arranged at the lower end of the closed cup body 12, the second one-way valve 13 is arranged at the top of the closed cup body 12, and the suction nozzle valve (14) is arranged on the negative pressure suction nozzle 11; generally speaking, the negative pressure cup 1 will be installed in a formation cabinet, and the negative pressure cup 1 is connected to the liquid injection hole of the battery through the negative pressure suction nozzle 11 so as to be used to absorb the gas generated by the battery formation process.

[0033] Moreover, in order to facilitate the simultaneous formation of multiple batteries, the connecting pipe includes a main pipe 21 and multiple first branch pipes 22 connected to the main pipe 21. Each of the first branch pipes 22 is connected to multiple negative pressure cups 1, and a first pipe valve 23 is provided at the pipe end of each first branch pipe 22 connected to the main pipe 21; the connecting pipe also includes a second branch pipe 24 for connecting to the cleaning agent container 30. Under the push of external dry gas, the cleaning agent flows into the first branch pipe 22 along the second branch pipe 24 and then into the negative pressure cup 1. A second pipe valve 25 is also provided on the second branch pipe 24.

[0034] In addition, the connecting pipe also includes an air intake branch pipe 26, an air outlet branch pipe 27, and an intermediate container 28. The connecting pipe is connected to the pressure control component 4 through the air intake branch pipe 26, and is also connected to the pressure control component 4 through the air outlet branch pipe 27. The intermediate container 28 is arranged in the middle section of the air intake branch pipe 26 and in the middle section of the air outlet branch pipe 27. The air intake branch pipe 26 is connected in series with the upper area of ​​the intermediate container 28, and the air outlet branch pipe 27 is connected in series with the lower area of ​​the intermediate container 28. The air outlet branch pipe 27 is located below the air intake branch pipe 26. A first one-way valve 29 is also provided on the pipe end of the air outlet branch pipe 27 connected to the main pipe 21.

[0035] In this embodiment, the intermediate container 28 includes two parts: a gas-liquid separator and a residual liquid container. The gas-liquid separator is arranged on the air intake branch pipe 26, and the residual liquid container is arranged on the air outlet branch pipe 27. The gas-liquid separator and the residual liquid container are connected to each other.

[0036] Furthermore, for the convenience of control, in this embodiment, the air intake branch pipe 26 and the air outlet branch pipe 27 are first connected to each other through a three-way pipe connector to a manifold, and the manifold is then connected to the main pipe 21, and a fourth pipeline valve is also provided on the return pipe.

[0037] Furthermore, a recovery pipe 51 is provided at the lower portion of the intermediate container 28 , one end of the recovery pipe 51 is connected to the intermediate container 28 , and the other end is connected to a recovery container 5 . A third pipe valve 52 is also provided on the recovery pipe 51 .

[0038] It should be noted that: in this embodiment, the cleaning agent is a dimethyl carbonate solution; the pressure control component 4 includes a combination of an exhaust pump and a blower; and for the convenience of control, the first pipeline valve 23, the second pipeline valve 25, the third pipeline valve 52, the suction nozzle valve 14, and the fourth pipeline valve are all solenoid valves, and the first one-way valve 52 and the second one-way valve 13 can be conventional one-way valves on the market.

[0039] Furthermore, a vent pipe 31 is provided at the upper end of the cleaning agent container 30, and the connecting pipe is connected to the lower part of the cleaning agent container 30. Dry gas is injected into the cleaning agent container 30 along the vent pipe 31 to push the cleaning agent to flow into the negative pressure cup 1 along the connecting pipe; in this regard, technicians can connect the pressure control component 4 with the vent pipe 31, or use an external air supply pump to supply dry air to the vent pipe 31 to force the cleaning agent in the cleaning agent container 30 to flow into the negative pressure cup 1 along the connecting pipe, so that the cleaning agent can flow into and clean the negative pressure cup 1.

[0040] Based on the above solution, the integrated device of this embodiment has the following two working modes:

[0041] Suction mode: In this mode, the negative pressure suction nozzle 11 of the negative pressure cup 1 is connected to the liquid injection hole at the upper end of the battery, multiple first pipeline valves 23 are open, the second pipeline valve 25 is closed, the third pipeline valve 52 is closed, the fourth pipeline valve is open, and the suction nozzle valve 14 is open; when the lithium battery is being processed, the pressure control component 4 creates negative pressure, and the negative pressure acts on the inside of the negative pressure cup 1 along the suction branch pipe 26-main pipe 21-first branch pipe 22, further prompting the negative pressure cup 1 to suck the gas generated in the battery and the electrolyte in the battery to ensure that the battery formation process proceeds normally until it ends.

[0042] Cleaning mode: This mode is used to clean the electrolyte in the negative pressure cup 1 and the electrolyte that may flow into the first branch pipe 22 , taking the cleaning of multiple negative pressure cups 1 on a first branch pipe 22 as an example.

[0043] First, open the first pipeline valve 23 on the first branch pipe 22 and close the other first pipeline valves 23; open the second pipeline valve 25, close the third pipeline valve 52, the fourth pipeline valve, and the suction nozzle valve 14, and introduce dry gas into the vent pipe 31 to push the cleaning agent in the cleaning agent container 30 along the second branch pipe 24-main pipe 21-first branch pipe 22 into the negative pressure cup 1, and the original gas in the negative pressure cup 1 can flow out from the second one-way valve 13.

[0044] After there is an appropriate amount of cleaning agent in the negative pressure cup 1, first close the second pipeline valve 25, open the fourth pipeline valve, keep the third pipeline valve 52 closed, and the negative pressure control component works to create negative pressure. After the negative pressure is generated for 0.5 seconds, open the suction nozzle valve 14. Under the action of negative pressure, the cleaning agent in the negative pressure cup 1 flows into the intermediate container 28 along the first branch pipe 22-main pipe 21-intake branch pipe 26.

[0045] Afterwards, the suction nozzle valve 14 is closed again, and the pressure control component 4 creates positive pressure again, that is, positive pressure, that is, blowing air into the air outlet branch pipe 27 to push the cleaning agent in the intermediate container 28 to flow into the negative pressure cup 1 again along the air outlet branch pipe 27-main pipe 21-first branch pipe 22, and the original gas in the negative pressure cup 1 flows to the outside again from the second one-way valve 13, without causing pressure obstruction to the inflow of the cleaning agent.

[0046] This process is repeated to complete the cleaning of multiple negative pressure cups 1 on a single first branch pipe 22 .

[0047] Furthermore, according to the above method, technicians can also clean multiple first branch pipes 22 one by one.

[0048] After all the negative pressure cups 1 are cleaned, the third pipeline valve 52 is opened to allow the cleaning agent in the intermediate container 28 to flow into the recovery container 5 along the recovery pipeline 51, so as to effectively recover the cleaning agent and reduce environmental pollution.

[0049] It should be noted that: in order to reduce costs, the pressure control component 4 of this embodiment is a combination of an exhaust pump and a fan. The exhaust pump is used to create negative pressure, and the fan is used to create positive pressure blowing. A first one-way valve 29 is also provided on the air outlet branch pipe 27. This first one-way valve 29 is set at the air outlet port of the air outlet branch pipe 27. The first one-way valve 29 is used to limit the cleaning agent to only flow from the residual liquid container along the air outlet branch pipe 27 into the negative pressure cup 1, and to limit the cleaning agent to only flow back from the air intake branch pipe 26 into the gas-liquid separator, and the refluxed cleaning agent is gathered in the residual liquid container under the action of the gas-liquid separator and gravity, so that the refluxed cleaning agent can only flow into the negative pressure cup 1 along the air outlet branch pipe 27, so as to effectively prevent the cleaning agent from flowing into the pressure control component 4.

[0050] In addition, technicians can also set the connection position between the air intake branch pipe 26 and the manifold above the connection position between the air outlet branch pipe 27 and the manifold to further prevent the cleaning agent flowing out along the air outlet branch pipe 27 from flowing back into the air intake branch pipe 26.

[0051] In addition, when the pressure control component 4 creates negative pressure, the fan connected to the air outlet branch pipe 27 is reversely blocked to block the air outlet branch pipe 27 when it is shut down, so as to effectively prevent the problem of the negative pressure effect being deteriorated or even disappeared due to the air outlet branch pipe 27 being connected to the outside.

[0052] Any matters not mentioned above are applicable to the prior art.

[0053] Finally, it should be noted that the above embodiments are intended only to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art will appreciate that modifications may be made to the technical solutions described in the above embodiments, or that some of the technical features may be replaced with equivalents; and such modifications or replacements do not deviate from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. An integrated suction and cleaning device, characterized in that: The invention comprises a negative pressure cup (1), a connecting pipe, a cleaning agent container (30), and a pressure control component (4), wherein the connecting pipe connects the cleaning agent container (30) and the negative pressure cup (1), and the connecting pipe also connects the pressure control component (4) and the negative pressure cup (1), wherein the cleaning agent in the cleaning agent container (30) flows into and cleans the negative pressure cup (1) through the connecting pipe, and the pressure control component (4) is used to generate negative pressure, and the negative pressure generated by the pressure control component (4) acts on the negative pressure cup (1) through the connecting pipe, so that the negative pressure cup (1) absorbs the gas generated by the battery during the formation process.

2. The integrated suction and cleaning device according to claim 1, wherein: A vent pipe (31) is provided at the upper end of the cleaning agent container (30), and the connecting pipe is connected to the lower part of the cleaning agent container (30). Dry gas is injected into the cleaning agent container (30) along the vent pipe (31) to push the cleaning agent along the connecting pipe to flow into the negative pressure cup (1).

3. The integrated suction and cleaning device according to claim 1, wherein: The connecting pipe comprises a main pipe (21) and a plurality of first branch pipes (22) connected to the main pipe (21), and each of the first branch pipes (22) is connected to a plurality of negative pressure cups (1).

4. The integrated suction and cleaning device according to claim 3, characterized in that: A first pipeline valve (23) is provided at the pipe end of each first branch pipe (22) that is connected to the main pipe (21).

5. The integrated suction and cleaning device according to claim 1, wherein: The connecting pipe further comprises a second branch pipe (24), the second branch pipe (24) being connected to the lower portion of the cleaning agent container (30), and a second pipeline valve (25) being provided on the second branch pipe (24).

6. The integrated suction and cleaning device according to claim 1, wherein: The connecting pipe further comprises an air suction branch pipe (26), and the connecting pipe is connected to the pressure control component (4) through the air suction branch pipe (26).

7. The integrated suction and cleaning device according to claim 6, wherein: The connecting pipe further includes an air outlet branch pipe (27) and an intermediate container (28). The air outlet branch pipe (27) is connected to the pressure control component (4). The intermediate container (28) is arranged in series on the air intake branch pipe (26) and the air outlet branch pipe (27). The intermediate container (28) is used to recover the cleaning agent that flows back along the air intake branch pipe (26). The pressure control component (4) is also used to create positive pressure so that the cleaning agent in the intermediate container (28) flows along the air outlet branch pipe (27) into the negative pressure cup (1).

8. The integrated suction and cleaning device according to claim 7, wherein: A first one-way valve (29) is also provided on the air outlet branch pipe (27). The first one-way valve (29) is used to limit the cleaning agent in the intermediate container (28) to flow into the negative pressure cup (1), and to limit the cleaning agent to be sucked into the intermediate container (28) along the air intake branch pipe (26).

9. The integrated suction and cleaning device according to claim 7, wherein: The device further comprises a recovery container (5) and a recovery pipe (51). The recovery container (5) is connected to the intermediate container (28) through the recovery pipe (51). A third pipe valve (52) is also provided on the recovery pipe (51).

10. The integrated suction and cleaning device according to claim 1, wherein: The negative pressure cup (1) comprises a closed cup body (12), a negative pressure suction nozzle (11), a second one-way valve (13), and a suction nozzle valve (14); the connecting pipe is connected to the upper end of the closed cup body (12); the negative pressure suction nozzle (11) is arranged at the lower end of the closed cup body (12); the second one-way valve (13) is arranged at the top end of the closed cup body (12); and the suction nozzle valve (14) is arranged on the negative pressure suction nozzle (11).

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