Negative pressure formation pipeline cleaning device and negative pressure formation system
By installing cooling mechanisms inside and outside the negative pressure formation pipeline, and using cooling plugs and cooling sleeves to condense and reflux the electrolyte vapor, the problem of large electrolyte vapor loss is solved, achieving efficient electrolyte recovery and cost reduction.
Patent Information
- Application Number
- CN202520024665.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-06
- Publication Date
- 2026-01-16
- Estimated Expiration
- 2035-01-06
AI Technical Summary
During the negative pressure formation process in battery production, electrolyte vapor is extracted along with the gas, resulting in significant electrolyte loss. Existing cooling methods cannot effectively reduce electrolyte loss, thus increasing production costs.
A first cooling mechanism is installed inside the negative pressure pipeline to cool the electrolyte vapor flowing in the center, and a second cooling mechanism is installed on the outside to cool the vapor near the inner wall. The condensation and reflux of the vapor are achieved by using cooling plugs and cooling sleeves.
It effectively reduces electrolyte vapor loss during the formation process, lowers production costs, improves cooling efficiency, and reduces equipment cleaning frequency.
Smart Images
Figure CN223809141U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to battery formation technical field, especially relate to a negative pressure formation pipeline cleaning device and negative pressure formation system. BACKGROUND
[0002] At present, in the production process of battery, formation operation mostly adopts negative pressure formation, reaction occurs in the battery during the formation process, and gas is generated. The gas is extracted by negative pressure, but during the extraction process of the gas, electrolyte vapor is extracted together, thereby causing great loss of electrolyte of the battery, and the electrolyte lost in the negative pressure formation process needs to be supplemented by secondary liquid injection, thereby increasing the production cost.
[0003] In the prior art, a cooling pipeline is usually arranged around the negative pressure pipeline to cool the electrolyte vapor flowing in the negative pressure pipeline, so that the electrolyte vapor is condensed into liquid electrolyte in the negative pressure pipeline and flows back into the battery, thereby reducing the loss of liquid.
[0004] Although this method can reduce the loss of liquid, since the diameter of the negative pressure pipeline is large, the method of arranging a cooling pipeline around the negative pressure pipeline can only affect the contact wall, and the middle part of the negative pressure pipeline cannot be cooled, thereby causing great loss of liquid and high production cost. UTILITY MODEL CONTENTS
[0005] The utility model aims at the above-mentioned technical problems, and provides a negative pressure formation pipeline cleaning device and negative pressure formation system to solve the above-mentioned technical problems.
[0006] Therefore, the utility model provides a negative pressure formation pipeline cleaning device, which comprises a base frame and further comprises:
[0007] A formation negative pressure mechanism, which comprises a negative pressure pipeline and a driving unit, the driving unit is installed on the base frame and is used for controlling the negative pressure pipeline to move along the height direction, and the negative pressure pipeline is used for connecting the liquid injection hole of the battery;
[0008] A first cooling mechanism, which is arranged in the negative pressure pipeline and is used for cooling the inside of the negative pressure pipeline;
[0009] A second cooling mechanism, which is arranged outside the negative pressure pipeline and is used for cooling the outside of the negative pressure pipeline.
[0010] Further, the first cooling mechanism comprises:
[0011] A cooling plug, which is located in the negative pressure pipeline and has a hollow structure inside;
[0012] A connecting pipeline, which is used for communicating with the cooling plug and is used for introducing medium into the cooling plug or releasing the medium in the cooling plug.
[0013] Further, the cooling plug can expand and contract, and move relative to the negative pressure pipe.
[0014] The negative pressure pipe comprises a flared section, and the cooling plug is in an expanded state when located in the flared section, and is in a contracted state when located in the negative pressure pipe.
[0015] Further, the connecting pipe is made of a hard material, one end of the connecting pipe is in communication with the cooling plug, the other end of the connecting pipe is located outside the negative pressure pipe, and the connecting pipe is a fixed structure.
[0016] Further, the chemical negative pressure mechanism further comprises:
[0017] The adapter is installed on the negative pressure pipe and is in communication with the negative pressure pipe.
[0018] The negative pressure hose is in communication with the adapter.
[0019] The connecting pipe passes through the adapter.
[0020] Further, the first cooling mechanism further comprises:
[0021] The limiting piece is installed on the pipe body of the connecting pipe located outside the negative pressure pipe, and is used for limiting the relative movement distance between the cooling plug and the negative pressure pipe.
[0022] Further, the second cooling mechanism comprises:
[0023] The cooling sleeve is installed on the outer wall of the flared section.
[0024] The cooling module is used for conveying circulating cooling medium into the cooling sleeve.
[0025] Further, the negative pressure pipe comprises a flared section, and the cooling sleeve is installed on the outer wall of the flared section.
[0026] Further, the cooling module is a cooling pump, and the cooling pump is used for conveying cooling liquid into the cooling sleeve.
[0027] Further, the cooling module is also in communication with the connecting pipe.
[0028] A negative pressure chemical forming system comprises the negative pressure chemical forming pipe cleaning device of any one of the above.
[0029] The utility model has the advantages of:
[0030] By setting the first cooling mechanism inside the negative pressure pipe and the second cooling mechanism outside the negative pressure pipe, the electrolyte vapor flowing in the center of the negative pressure pipe can be cooled by the first cooling mechanism, and the electrolyte vapor flowing close to the inner wall of the negative pressure pipe can be cooled by the second cooling mechanism, so that the electrolyte vapor generated by the formation can be condensed and flowed back into the battery, reducing the formation liquid loss. BRIEF DESCRIPTION OF DRAWINGS
[0031] Figure 1 is a structural schematic diagram of the utility model;
[0032] Figure 2 is a schematic diagram of the internal structure of the utility model;
[0033] The marks in the figure are:
[0034] 1, negative pressure pipe; 11, flared section; 2, cooling plug; 3, connecting pipe; 4, adapter; 5, negative pressure hose; 6, cooling sleeve; 7, cooling module; 8, limiting piece; Z, height direction. DETAILED DESCRIPTION
[0035] The technical solutions in the embodiments of the present application will be clearly described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.
[0036] In the description of the present application, it should be noted that the terms used herein are only for the purpose of describing the specific embodiments, and are not intended to limit the exemplary embodiments according to the present application. For the convenience of description, the sizes of the parts shown in the drawings are not drawn in accordance with the actual proportional relationship. The technology, methods and devices known to those skilled in the art may not be discussed in detail, but should be considered as part of the authorized description. In all examples shown and discussed herein, any specific value should be interpreted as merely exemplary, and not as a limitation. Therefore, other examples of exemplary embodiments can have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.
[0037] Embodiment 1:
[0038] The present embodiment provides a negative pressure formation pipeline cleaning device, comprising a base frame, further comprising:
[0039] The chemical formation negative pressure mechanism comprises a negative pressure pipe 1 and a driving unit installed on a base frame for controlling the negative pressure pipe 1 to move along the height direction Z, and the negative pressure pipe 1 is used for connecting the liquid injection hole of the battery;
[0040] The first cooling mechanism is arranged inside the negative pressure pipe 1 and used for cooling the inside of the negative pressure pipe 1.
[0041] The second cooling mechanism is arranged outside the negative pressure pipe 1 and used for cooling the outside of the negative pressure pipe 1.
[0042] In the technical solution, before the negative pressure chemical formation work is performed, the driving unit on the base frame controls the negative pressure pipe 1 to descend (the driving unit and the base frame are not shown in the drawings), so that the negative pressure pipe 1 is inserted into the liquid injection hole of the battery to form a sealed state, and the first cooling mechanism is located inside the negative pressure pipe 1.
[0043] When the negative pressure chemical formation work is started, the first cooling mechanism and the second cooling mechanism start to work at the same time to cool the negative pressure pipe 1, and the electrolyte vapor generated in the negative pressure chemical formation work flows close to the center of the negative pressure pipe 1 and contacts the first cooling mechanism, is condensed into liquid by the cooling effect of the first cooling mechanism, and drops back into the battery, and the electrolyte vapor flowing close to the inner wall of the negative pressure pipe 1 is condensed into liquid by the cooling effect of the second cooling mechanism and flows back to the battery along the pipe wall, thereby effectively reducing the liquid loss in the negative pressure chemical formation process.
[0044] Further, the first cooling mechanism comprises:
[0045] The cooling plug 2 is located inside the negative pressure pipe 1, and the inside of the cooling plug 2 is a hollow structure.
[0046] The connecting pipe 3 is used for communicating with the cooling plug 2 and for introducing medium into the cooling plug 2 or discharging the medium in the cooling plug 2.
[0047] The cooling plug 2 is made of rubber plastic or other easily deformable corrosion-resistant materials, the inside of the cooling plug 2 is hollow, the cooling plug 2 is installed on one end of the connecting pipe 3, the other end of the connecting pipe 3 is used for conveying medium to the inner wall of the cooling plug 2 and discharging the medium back, and the medium can be cooling liquid. When the electrolyte vapor contacts the cooling plug 2, it is condensed into liquid on the surface of the cooling plug 2, thereby dropping back into the battery.
[0048] In summary, by arranging the first cooling mechanism inside the negative pressure pipe 1 and the second cooling mechanism outside the negative pressure pipe 1, the electrolyte vapor flowing in the center of the negative pressure pipe 1 can be cooled by the first cooling mechanism, the electrolyte vapor flowing close to the inner wall of the negative pressure pipe 1 can be cooled by the second cooling mechanism, the electrolyte vapor generated in the chemical formation can be condensed and flowed back into the battery, and the liquid loss in the chemical formation is reduced.
[0049] Embodiment 2:
[0050] The embodiment provides a negative pressure formation pipeline cleaning device, in addition to comprising the technical scheme of the above embodiment, further has the following technical features.
[0051] Further, the cooling plug 2 can expand and contract, and move relative to the negative pressure pipe 1.
[0052] The negative pressure pipe comprises a flared section 11, the cooling plug 2 is in an expanded state when the cooling plug 2 is located in the flared section 11, and the cooling plug 2 is in a contracted state when the cooling plug 2 is located in the negative pressure pipe 1.
[0053] Further, the connecting pipe 3 is made of a hard material, one end of the connecting pipe 3 is in communication with the cooling plug 2, the other end of the connecting pipe 3 is located outside the negative pressure pipe 1, and the connecting pipe 3 is a fixed structure.
[0054] In the technical scheme, the flared section 11 is arranged on the negative pressure pipe 1, the cooling plug 2 is arranged in the negative pressure pipe 1 and moves relative to the negative pressure pipe 1, and the relative movement between the cooling plug 2 and the negative pressure pipe 1 can be that the connecting pipe 3 is fixedly installed on the base frame and located in the negative pressure pipe 1, and when the driving unit controls the negative pressure pipe 1 to move, the cooling plug 2 moves relatively, or that another driving unit is arranged on the base frame, and the driving unit is used to control the connecting pipe 3 to move in the negative pressure pipe 1, so that the relative movement between the cooling plug 2 and the negative pressure pipe 1 is realized.
[0055] When the negative pressure formation operation is performed, the cooling plug 2 moves into the flared section 11, the cooling liquid is introduced into the cooling plug 2 through the connecting pipe 3, the cooling plug 2 is expanded and enlarged, the cooling surface area of the cooling plug 2 is increased, the cooling plug 2 can cool more electrolyte vapor at the same time, and the cooling efficiency is improved. After the negative pressure formation operation is completed, the cooling liquid in the cooling plug 2 is pumped away through the connecting pipe 3, and the cooling plug 2 remains in a contracted state. The driving unit controls the negative pressure pipe 1 to rise, and the cooling plug 2 moves downward relatively from the flared section 11 into the negative pressure pipe 1, so that the cooling plug 2 in the contracted state can wipe the inner wall of the negative pressure pipe 1, the residual electrolyte on the inner wall of the negative pressure pipe 1 can slide back into the battery under pressure, and the loss of liquid is reduced. At the same time, the electrolyte crystallization in the pipeline can be avoided to affect the subsequent negative pressure formation operation, and the frequency of manual cleaning of the formation equipment can be reduced.
[0056] Embodiment 3:
[0057] The embodiment provides a negative pressure formation pipeline cleaning device, in addition to comprising the technical scheme of the above embodiment, further has the following technical features.
[0058] Further, the formation negative pressure mechanism further comprises:
[0059] The adapter 4 is installed on the negative pressure pipe 1 and communicates with the negative pressure pipe 1.
[0060] The negative pressure hose 5 communicates with the adapter 4.
[0061] The connecting pipe 3 passes through the adapter 4.
[0062] In the technical solution, the negative pressure hose 5 is connected with an external negative pressure device to generate a negative pressure in the negative pressure pipe 1. The adapter 4 is installed on the negative pressure pipe 1, and the connecting pipe 3 passes through the adapter 4. The adapter 4 can guide and limit the movement of the connecting pipe 3 to avoid the connecting pipe 3 from colliding with the negative pressure pipe 1.
[0063] Further, the first cooling mechanism further comprises:
[0064] The limiting piece 8 is installed on the pipe body of the connecting pipe 3 outside the negative pressure pipe 1 to limit the relative movement distance between the cooling plug 2 and the negative pressure pipe 1. The limiting piece 8 can abut against the adapter 4 to limit the movement of the cooling plug 2 to avoid the cooling plug 2 from moving upward or downward excessively.
[0065] Embodiment 4:
[0066] The embodiment provides a negative pressure formation pipeline cleaning device, which comprises the technical solutions of the above embodiments and has the following technical features.
[0067] Further, the second cooling mechanism comprises:
[0068] The cooling sleeve 6 is installed on the outer wall of the flared section 11.
[0069] The cooling supply module 7 is used to supply a circulating cooling medium into the cooling sleeve 6.
[0070] In the technical solution, the cooling sleeve 6 is provided with an inlet and an outlet. The cooling medium supplied by the cooling supply module 7 enters the cooling sleeve 6 through the inlet and is output back to the cooling supply module 7 through the outlet, so that the cooling sleeve 6 can cool the electrolyte vapor in the flared section 11. The cooling sleeve 6 can be fixedly connected to the flared section 11 or designed as an integral structure with the flared section 11. Preferably, the cooling sleeve 6 is integrally connected to the flared section 11 to enhance the connection stability between the cooling sleeve 6 and the flared section 11 and the cooling effect of the cooling sleeve 6 on the flared section 11.
[0071] Further, the cooling supply module 7 is a cooling pump, which is used to deliver cooling liquid to the cooling sleeve 6. The cooling pump can be used to deliver and extract the cooling liquid to the cooling sleeve 6, so that the cooling sleeve 6 can cool the negative pressure pipe 1.
[0072] Further, the cooling supply module 7 also communicates with the connecting pipe 3. The cooling supply module 7 can be connected with the connecting pipe 3. Through this structure design, the cooling supply module 7 is used to deliver cooling medium to the cooling plug 2, so that the cooling plug 2 has cooling effect and realizes expansion and contraction of the cooling plug 2.
[0073] Embodiment 5:
[0074] A negative pressure formation system, comprising the negative pressure formation pipe cleaning device of any one of the above embodiments 1-4.
[0075] The embodiments of the present application are described above in combination with the drawings, the embodiments and the features in the embodiments in the present application can be combined with each other without conflict, the present application is not limited to the above specific embodiments, the above specific embodiments are only illustrative, but not limited, the ordinary skilled in the art can make many forms under the inspiration of the present application without departing from the purpose of the present application and the scope protected by the claims, all of which belong to the protection of the present application.
Claims
1. A negative pressure chemical generation pipe cleaning device comprising a base frame, characterized in that, Also comprising: a formation negative pressure mechanism, comprising a negative pressure pipe (1) and a driving unit installed on a base frame for controlling the movement of the negative pressure pipe (1) in the height direction (Z), the negative pressure pipe (1) being used for connecting to the battery liquid injection hole; a first cooling mechanism arranged inside the negative pressure pipe (1) for cooling the inside of the negative pressure pipe (1); a second cooling mechanism arranged outside the negative pressure pipe (1) for cooling the outside of the negative pressure pipe (1).
2. The negative pressure formation pipe cleaning device according to claim 1, characterized by The first cooling mechanism comprises: a cooling plug (2) located inside the negative pressure pipe (1), and the inside of the cooling plug (2) is a hollow structure; a connecting pipe (3) for communicating with the cooling plug (2) and for introducing medium into the cooling plug (2) or releasing the medium inside the cooling plug (2) to the outside.
3. The negative pressure formation pipe cleaning device according to claim 2, characterized by The cooling plug (2) can expand and contract, and move relative to the negative pressure pipe (1); wherein the negative pressure pipe comprises a flared section (11), when the cooling plug (2) is located in the flared section (11), the cooling plug (2) is in an expanded state, and when the cooling plug (2) is located in the negative pressure pipe (1), the cooling plug (2) is in a contracted state.
4. The negative pressure formation pipe cleaning device according to claim 2, characterized by The material of the connecting pipe (3) is hard material, one end of the connecting pipe (3) communicates with the cooling plug (2), and the other end of the connecting pipe (3) is located outside the negative pressure pipe (1), and the connecting pipe (3) is a fixed structure.
5. The negative pressure formation pipe cleaning device according to claim 3, characterized by The formation negative pressure mechanism further comprises: an adapter (4) installed on the flared section (11) and communicating with the negative pressure pipe (1); a negative pressure hose (5) communicating with the adapter (4); wherein the connecting pipe (3) is arranged through the adapter (4).
6. The negative pressure formation pipe cleaning device according to claim 4, characterized by The first cooling mechanism further comprises: a limiting piece (8) installed on the pipe body of the connecting pipe (3) located outside the negative pressure pipe (1), for limiting the relative movement distance between the cooling plug (2) and the negative pressure pipe (1).
7. The negative pressure formation pipe cleaning device according to claim 3, characterized by The second cooling mechanism comprises: a cooling sleeve (6) installed on the outer wall of the flared section (11); a cooling supply module (7) for delivering circulating cooling medium into the cooling sleeve (6).
8. The negative pressure formation pipe cleaning device according to claim 7, characterized by The cooling supply module (7) is a cooling pump for delivering cooling liquid to the cooling sleeve (6).
9. The negative pressure formation pipe cleaning device according to claim 7, characterized by The cooling supply module (7) also communicates with the connecting pipe (3).
10. A negative pressure formation system, characterized by, A negative pressure formation pipeline cleaning device according to any one of claims 1-9.