CN220209059U - Negative pressure system and battery formation equipment - Google Patents
Negative pressure system and battery formation equipment Download PDFInfo
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- CN220209059U CN220209059U CN202320999317.5U CN202320999317U CN220209059U CN 220209059 U CN220209059 U CN 220209059U CN 202320999317 U CN202320999317 U CN 202320999317U CN 220209059 U CN220209059 U CN 220209059U
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- negative pressure
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- pressure system
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- 230000015572 biosynthetic process Effects 0.000 title claims abstract description 26
- 238000001035 drying Methods 0.000 claims description 5
- 239000000428 dust Substances 0.000 claims description 5
- 238000000034 method Methods 0.000 abstract description 7
- 230000000694 effects Effects 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 5
- 239000003792 electrolyte Substances 0.000 description 5
- 238000005086 pumping Methods 0.000 description 4
- 230000003749 cleanliness Effects 0.000 description 3
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 229910052744 lithium Inorganic materials 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000003487 electrochemical reaction Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Abstract
The application provides a negative pressure system and battery formation equipment, and this system includes negative pressure cavity, vacuum pump and main rudder machine. The vacuum pump is connected with the negative pressure cavity through the main pipeline, at least one part of the main pipeline is a flexible pipe, and an output shaft of the main steering engine is connected with a first rotating body. Based on the above, the first rotating body can form different degrees of abutting connection to the flexible pipe of the main pipe when rotating within the preset angle range, so as to control the drift diameter of the main pipe at the abutting connection position. Therefore, the application can achieve the effect in the prior art in the process of vacuumizing the negative pressure cavity by the vacuum pump, and the cost of related accessories such as steering engines is lower than that of related accessories such as the vacuum pump and the valve with adjustable opening in the prior art.
Description
Technical Field
The application relates to the technical field of lithium battery manufacturing, in particular to a negative pressure system and battery formation equipment.
Background
Formation is a very important process in the manufacturing process of lithium batteries, and is related to various qualities such as battery capacity, cycle life, safety performance, and the like. The main current formation method is sealing formation, which is to seal the liquid holding port after the electrolyte is held, then perform battery formation, and simultaneously form a negative electrode surface SEI film (SolidElectrolyteInterface) through electrochemical reaction in charging.
However, since a part of vaporized electrolyte is generated during the formation of the SEI film, the part of gas may accumulate inside the battery, thereby causing problems such as swelling of the battery. For this reason, in the prior art, a negative pressure suction nozzle mechanism may be used to "suck" out this gas, and is described in, for example, chinese patents CN201711241727.9, CN202020963680.8, CN201820970192.2, etc. However, since the electrolyte has a certain corrosiveness, it is necessary to maintain the corroded suction nozzle during the use process, and based on this, the prior art proposes to put the whole battery into a negative pressure environment for formation, so that the vaporized electrolyte is "sucked" out by the negative pressure environment, as described in, for example, chinese patent nos. CN201811329052.8 and CN 202123037893.1.
In the prior art, the negative pressure environment is usually realized by a vacuum pump, a valve with adjustable opening (such as a butterfly valve, a ball valve, a throttle valve, etc.), but this way is too costly. In the prior art
Disclosure of Invention
Based on this, the application provides a negative pressure system and battery formation equipment, aims at providing another mode for realizing negative pressure environment so as to reduce cost.
In a first aspect, the present application provides a negative pressure system comprising:
the negative pressure cavity is used for placing a battery to be formed;
the vacuum pump is connected with the negative pressure cavity through a main pipeline, and at least one part of the main pipeline is a flexible pipe; and
the output shaft of the main steering engine is connected with a first rotating body; the first rotating body can form different degrees of abutting connection on the flexible pipe of the main pipe when rotating within a preset angle range so as to control the drift diameter of the main pipe at the abutting connection position.
In the negative pressure system provided by the application, the vacuum pump is also connected with the negative pressure cavity through an auxiliary pipeline; the main pipeline is connected with the auxiliary pipeline in parallel, and the drift diameter of the main pipeline is larger than that of the auxiliary pipeline;
the vacuum pump is used for: the negative pressure value in the negative pressure cavity reaches a first set value through the main pipeline, and then the negative pressure value in the negative pressure cavity reaches a second set value through the auxiliary pipeline; and maintaining the negative pressure value in the negative pressure cavity through the auxiliary pipeline after the negative pressure value in the negative pressure cavity reaches the second set value.
In the negative pressure system provided by the application, at least one part of the auxiliary pipeline is a flexible pipe;
the negative pressure system further comprises an auxiliary steering engine, and an output shaft of the auxiliary steering engine is connected with a second rotating body; the second rotating body can form different degrees of abutting connection on the flexible pipe of the auxiliary pipeline when rotating within a preset angle range so as to control the path of the auxiliary pipeline at the abutting connection position.
In the negative pressure system provided by the application, the main steering engine is arranged adjacent to the flexible pipe of the main pipeline, and/or the auxiliary steering engine is arranged adjacent to the flexible pipe of the auxiliary pipeline.
In the negative pressure system provided by the application, the negative pressure cavity is also connected with a vacuum breaking valve.
In the negative pressure system provided by the application, the negative pressure system further comprises a dry air source; and the drying air source is connected with an air inlet of the vacuum breaking valve.
In the negative pressure system provided by the application, the air inlet of the vacuum breaking valve is also connected with a bypass valve; and a dew point meter and a dust meter are further arranged at the air inlet of the bypass valve.
In a second aspect, the present application provides a battery formation apparatus comprising a negative pressure system as described in the first aspect.
Based on the technical scheme, because the first rotating body can rotate a certain angle under the drive of the output shaft of the steering engine, the flexible pipe of the main pipe can be abutted to the flexible pipe of different degrees, and the diameter of the main pipe at the abutted position is controlled. Therefore, the mode can achieve the effect in the prior art in the process of vacuumizing the negative pressure cavity by the vacuum pump, and the cost of related accessories such as steering engines is lower than that of related accessories such as the vacuum pump and the valve with adjustable opening in the prior art.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural diagram of a negative pressure system according to an embodiment of the present disclosure;
FIG. 2 is an exemplary block diagram of a flexible pipe of a primary control pipe of a first rotor in an embodiment of the present application at an abutment;
FIG. 3 is a schematic diagram of another structure of the negative pressure system according to the embodiment of the present application;
FIG. 4 is a schematic view of a structure for breaking vacuum in an embodiment of the present application;
FIG. 5 is a schematic diagram of an exemplary configuration of a negative pressure system according to an embodiment of the present application;
fig. 6 is a schematic structural diagram of a battery formation device according to an embodiment of the present application.
Detailed Description
The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are some, but not all, of the embodiments of the present application. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure.
It should be understood that the terms "first," "second," "third," "fourth," and the like in the description, in the claims, or in the above-described figures, if any, are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order, and are not to be interpreted as indicating or implying a relative importance or an implicit indication of the number of technical features indicated. In addition, the term "connected" (if any) in the specification, claims or drawings of this application is to be construed broadly, and for example, "connected" may be a fixed connection, a removable connection, or an integral connection, or an electrical connection, or a signal connection, and "connected" may be a direct connection, or an indirect connection via an intermediary. Furthermore, the term "and/or" (if present) as used in the specification, claims or the above figures of the present application refers to any and all possible combinations of one or more of the associated listed items and includes such combinations.
The negative pressure system 100 provided in the embodiment of the application can be applied to battery formation equipment. The negative pressure system 100 may provide a suitable negative pressure environment for the battery to be formed in conjunction with other components of the battery forming apparatus. In some embodiments, the battery formation device may have a battery capacity-dividing function at the same time, that is, the battery formation device integrates the capacity-dividing function.
As shown in fig. 1, the negative pressure system 100 may include a negative pressure cavity 110, a vacuum pump 120, and a main rudder 130.
The negative pressure cavity 110 is used for placing a battery to be formed, and in this embodiment, when the negative pressure cavity 110 is in a suitable negative pressure environment, vaporized electrolyte generated in the formation process of the battery can be "sucked" away.
Wherein the vacuum pump 120 is connected to the negative pressure chamber 110 through the main pipe 140. In this embodiment of the present application, at least a portion of the main pipe 140 is a flexible pipe, and it should be noted that the flexible pipe in this embodiment of the present application may be a flexible material pipe, and the flexible pipe may be deformed when pressed, so as to reduce the drift diameter, but can recover the shape after the pressing force is removed (i.e. the drift diameter is recovered to the original drift diameter). In some embodiments, the main conduit 140 may be flexible tubing throughout, and in some embodiments, a portion of the main conduit 140 is flexible tubing, such as may be in the form of rigid tubing + flexible tubing + rigid tubing.
In this embodiment of the present application, the steering engine may be a set of automatic control system including a dc motor, a reduction gear set, a sensor and a control circuit, and the output shaft may be controlled to rotate by a certain angle (generally, the steering engine has a maximum rotation angle, such as 180 degrees) by outputting a control signal (for example, a variable width pulse signal) to the steering engine. In this embodiment, as shown in fig. 1, the output shaft of the main rudder 130 is connected with the first rotating body 131, so when the output shaft of the steering engine 130 rotates by a certain angle, the first rotating body 131 also follows the rotation by a certain angle.
Based on this, the first rotator 131 can form different degrees of abutment against the flexible pipe of the main pipe 140 when rotating within a preset angle range, so as to control the path of the main pipe 140 at the abutment. Illustratively, the flexible tube of the main tube 140 may be fixedly disposed, such as on a substrate, a cabinet wall, or the like, such that when the first rotator 131 rotates, the flexible tube may be effectively pressed, thereby controlling the path of the flexible tube of the main tube 140 at the abutment. Illustratively, the main rudder 130 may be disposed adjacent to the flexible tube of the main tube 140, which may reduce the volume and the rotational area of the first rotor 131 and improve space utilization. Illustratively, as shown in fig. 2, when the first rotor 131 rotates to the position a in the figure under the drive of the output shaft of the steering engine 130, the diameter of the main pipe 140 at the abutting position is the maximum value (for example, when the first rotor 131 only contacts the flexible pipe, the diameter of the main pipe 140 at the abutting position is the normal diameter thereof); when the first rotator 131 is driven by the output shaft of the steering engine 130 to rotate in the counterclockwise direction, the diameter value of the main pipe 140 at the abutting position is gradually reduced; until the diameter of the main pipe 140 at the abutment is the minimum (e.g., close to zero) when the first rotator 131 rotates to the position B in the figure under the drive of the output shaft of the steering engine 130.
Therefore, the first rotating body 131 can rotate for a certain angle under the driving of the output shaft of the steering engine 130, so that the flexible pipe of the main pipe 140 can be abutted to each other in different degrees, and the path of the main pipe 140 at the abutted position can be controlled. Therefore, the vacuum pump 120 can achieve the effect in the prior art in the process of vacuumizing the negative pressure cavity 110, and the cost of related accessories such as steering engine is lower than that of related accessories such as vacuum pump and valve with adjustable opening degree in the prior art. For example, the negative pressure value required by the negative pressure cavity 110 may be 80MPa, and then when the formation is just started, the first rotating body 131 may be controlled to rotate so that the path of the main pipe 140 at the abutting position is the largest, and the negative pressure value is quickly up to 78MPa under the action of the vacuum pump 120; then, the first rotating body 131 can be continuously controlled to rotate so that the drift diameter of the main pipeline 140 at the abutting position is a proper value, and the negative pressure value is continuously stabilized to 80MPa under the action of the vacuum pump 120; finally, the first rotating body 131 can be controlled to rotate so that the path of the main pipe 140 at the abutting position is minimum (for example, close to zero), and the negative pressure value is maintained.
In some embodiments, as shown in fig. 3, the vacuum pump 120 is further connected to the negative pressure chamber 110 through the auxiliary duct 150, and the main duct 140 is connected in parallel with the auxiliary duct 150 and the main duct 140 has a larger path than the auxiliary duct 150 (simply understood that the main duct 140 is thicker than the auxiliary duct 150). The main pipe 140 and the auxiliary pipe 150 are connected in parallel in a broad sense, and may be connected in parallel, for example, as shown in the figure, in a portion where there is a common portion, or in a portion where there is no common portion. Based on this, the vacuum pump 130 is used to: the negative pressure value in the negative pressure cavity 110 reaches a first set value through the main pipeline 140, and then the negative pressure value in the negative pressure cavity 110 reaches a second set value through the auxiliary pipeline 150; and maintaining the negative pressure value in the negative pressure cavity 110 through the auxiliary pipe 150 after the negative pressure value in the negative pressure cavity 110 reaches the second set value.
Illustratively, a vacuum state needs to be quickly reached at the beginning of formation, so that the vacuum can be pumped through the main pipe 140 with a larger path, so that the negative pressure value in the negative pressure cavity 110 quickly reaches the first set value, for example, from 0 to 78MPa. Thereafter, the first rotating body 131 may be controlled to rotate so that the path of the main pipe 140 at the abutting position is minimum (e.g., close to zero), and vacuum pumping is continued through the auxiliary pipe 150 with a smaller path until the negative pressure value in the negative pressure cavity 110 accurately reaches the second set value, e.g., from 78MPa to 80MPa. In addition, the vacuum pump 120 is further configured to maintain the negative pressure value in the negative pressure cavity 110 through the auxiliary pipe 150 after the negative pressure value in the negative pressure cavity 110 reaches the second set value. Specifically, since the negative pressure chamber 110 is not absolutely sealed, the negative pressure value in the negative pressure chamber 110 may decrease with the increase of the use time, and thus the negative pressure value in the negative pressure chamber 110 may be maintained through the auxiliary pipe 150, for example, the negative pressure value in the negative pressure chamber 110 decreases from 80MPa to 79MPa, and the vacuum pump 120 may be started to perform the vacuum evacuation through the auxiliary pipe 150 until the negative pressure value reaches 80MPa again.
As can be seen, in the embodiment of the present application, the negative pressure value in the negative pressure cavity 110 is quickly close to the target value through the main pipe 140 with a larger path, and then the negative pressure value in the negative pressure cavity 110 is accurately reached to the target value through the auxiliary pipe 150 with a smaller path; at the same time, the negative pressure value in the negative pressure chamber 110 is maintained through the auxiliary pipe 150 having a smaller path. This approach is easier to control and more accurate than single pipe control.
In some embodiments, as shown in fig. 3, at least a portion of the secondary conduit 150 is a flexible tube. Illustratively, the auxiliary conduits 150 may all be flexible tubes in their entirety. Illustratively, a portion of the auxiliary conduit 150 is a flexible tube, which may be in the form of a rigid tube + flexible tube + rigid tube, for example.
Based on this, the negative pressure system may further include an auxiliary steering engine 160, and the output shaft of the auxiliary steering engine 160 is connected to the second rotating body 161, so that when the output shaft of the steering engine 160 rotates by a certain angle, the second rotating body 161 also follows the rotation by a certain angle. Illustratively, the auxiliary steering engine 160 may be disposed adjacent to the flexible pipe of the auxiliary duct 150, which may reduce the volume and the rotational area of the second rotating body 161, and improve space utilization. Based on this, the second rotating body 161 can form different degrees of abutment against the flexible pipe of the auxiliary pipe 150 when rotating within a preset angle range, so as to control the path of the auxiliary pipe 150 at the abutment. Illustratively, the flexible tube of the auxiliary duct 150 may be fixedly disposed, such as on a base plate, a cabinet wall, or the like, such that when the second rotator 161 rotates, the flexible tube may be effectively pressed, thereby controlling the path of the flexible tube of the auxiliary duct 150 at the abutment. For example, referring to the embodiment of fig. 2 in which the first rotor 131 controls the path of the main pipe 140 at the abutment, the embodiment in which the second rotor 161 controls the path of the auxiliary pipe 150 at the abutment may also take such a way.
Illustratively, after the vacuum pump 120 rapidly reaches the negative pressure value in the negative pressure cavity 110 to the first set value (e.g., rapidly pumping from 0 to 78 MPa) through the main pipe 140 having a larger path, the first rotating body 131 may be controlled to rotate such that the path of the main pipe 140 at the abutment is at a minimum (e.g., close to zero); and, the second rotating body 161 can be controlled to rotate so that the path of the auxiliary pipeline 150 at the abutting position is the largest, and the vacuum pump 120 continues to vacuumize through the auxiliary pipeline 150 until the negative pressure value in the negative pressure cavity 110 accurately reaches the second set value, for example, from 78MPa to 80MPa. Thereafter, when maintaining the negative pressure value in the negative pressure cavity 110, the second rotator 161 may be controlled to rotate, thereby reasonably controlling the path of the auxiliary pipe 150 at the flexible pipe, and further enabling the vacuum pump to maintain the negative pressure value in the negative pressure cavity 110 through the auxiliary pipe 150.
In addition, in other embodiments, a valve with adjustable opening degree may be disposed on the pipe of the auxiliary pipe 150 to realize the control of the diameter.
In an embodiment, as shown in fig. 4, the vacuum breaking valve 111 is further connected to the negative pressure cavity 110, that is, the vacuum breaking valve 111 may be opened when the negative pressure environment in the negative pressure cavity 110 needs to be broken. Illustratively, when an abnormal condition occurs at the end of formation or during formation, the vacuum breaking valve 111 may be controlled to open so that air enters the negative pressure cavity 110, thereby breaking the vacuum. In one embodiment, negative pressure system 100 further includes a dry gas source 170, dry gas source 170 being connected to the inlet of vacuum breaking valve 111. Wherein the dry gas source 170 can generate clean and dry gas, and the vacuum is broken by the gas, so that the quality of the battery can not be influenced while the vacuum is broken. In an embodiment, the air inlet of the vacuum breaking valve 111 is further connected with a bypass valve 112, and the air inlet of the bypass valve 112 is further provided with a dew point meter 113 and a dust meter 114. In the embodiment of the present application, the air inlet source corresponding to the air inlet of the bypass valve 112 is external air, that is, the external air may be used to destroy the negative pressure environment in the negative pressure cavity 110. Therefore, the dew point meter 113 and the dust meter 114 are respectively arranged to test the moisture content and the cleanliness of the external air, and the bypass valve 112 can be opened to destroy the negative pressure environment in the negative pressure cavity 110 by using the external air under the condition that the moisture content and the cleanliness reach the standards.
In summary, the negative pressure system 100 in the embodiment of the present application may be exemplarily shown in fig. 5, and the specific implementation of this example is referred to the drawings and the foregoing discussion. Based on this, in the case where a battery to be formed is placed in the negative pressure chamber 110, the vacuum breaking valve 111 may be closed at the time of just starting the formation; and, the first rotating body 131 may be controlled to rotate so that the path of the main pipe 140 at the abutting position is maximized, and at the same time, the second rotating body 161 may be controlled to rotate so that the path of the auxiliary pipe 150 at the abutting position is minimized (e.g., close to zero), so that the vacuum pump 120 performs vacuum pumping through the main pipe 140 until the negative pressure value in the negative pressure chamber 110 reaches a first set value, e.g., 78MPa. Thereafter, the first rotating body 131 may be controlled to rotate so that the path of the main pipe 140 at the abutment is minimum (e.g., close to zero), while the second rotating body 161 may be controlled to rotate so that the path of the auxiliary pipe 150 at the abutment is maximum, so that the vacuum pump 120 continues to pump vacuum through the auxiliary pipe 150 until the negative pressure value in the negative pressure chamber 110 reaches a second set value, e.g., 80MPa, while the second rotating body 161 may be controlled to rotate so that the path of the auxiliary pipe 150 at the abutment is minimum (e.g., close to zero) and the vacuum pump 120 is turned off. Thereafter, if the negative pressure value in the negative pressure cavity 110 falls, for example, to 79MPa during formation, the vacuum pump 120 is turned on and the second rotator 161 is controlled to rotate so that the path of the auxiliary pipe 150 at the contact point is a proper value, so that the vacuum pump 120 can perform vacuum pumping through the auxiliary pipe 150 until the negative pressure value reaches a second set value, for example, 80MPa again. Finally, when the formation is completed, if the cleanliness and the moisture content of the external air reach the standards through the dew point instrument 113 and the dust instrument 114, the bypass valve 112 and the vacuum breaking valve 111 can be opened, and the vacuum is broken by the external air; if it does not reach the standard, the drying air source 170 and the vacuum breaking valve 111 may be opened, and the vacuum may be broken by the drying air generated by the drying air source 170.
The embodiment of the present application further provides a battery formation apparatus, as shown in fig. 6, including the negative pressure system 100 as described above, and the detailed description is referred to above.
While the utility model has been described with reference to certain preferred embodiments, it will be understood by those skilled in the art that various changes and substitutions of equivalents may be made and equivalents will be apparent to those skilled in the art without departing from the scope of the utility model. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (8)
1. A negative pressure system, comprising:
the negative pressure cavity is used for placing a battery to be formed;
the vacuum pump is connected with the negative pressure cavity through a main pipeline, and at least one part of the main pipeline is a flexible pipe; and
the output shaft of the main steering engine is connected with a first rotating body; the first rotating body can form different degrees of abutting connection on the flexible pipe of the main pipe when rotating within a preset angle range so as to control the drift diameter of the main pipe at the abutting connection position.
2. The negative pressure system of claim 1, wherein the vacuum pump is further connected to the negative pressure cavity by an auxiliary conduit; the main pipeline is connected with the auxiliary pipeline in parallel, and the drift diameter of the main pipeline is larger than that of the auxiliary pipeline;
the vacuum pump is used for: the negative pressure value in the negative pressure cavity reaches a first set value through the main pipeline, and then the negative pressure value in the negative pressure cavity reaches a second set value through the auxiliary pipeline; and maintaining the negative pressure value in the negative pressure cavity through the auxiliary pipeline after the negative pressure value in the negative pressure cavity reaches the second set value.
3. The negative pressure system of claim 2, wherein at least a portion of the secondary conduit is a flexible tube;
the negative pressure system further comprises an auxiliary steering engine, and an output shaft of the auxiliary steering engine is connected with a second rotating body; the second rotating body can form different degrees of abutting connection on the flexible pipe of the auxiliary pipeline when rotating within a preset angle range so as to control the path of the auxiliary pipeline at the abutting connection position.
4. The negative pressure system of claim 3, wherein the main steering engine is disposed adjacent to the flexible tube of the main conduit and/or the auxiliary steering engine is disposed adjacent to the flexible tube of the auxiliary conduit.
5. A negative pressure system according to any one of claims 1-3, characterized in that the negative pressure chamber is further connected with a vacuum breaking valve.
6. The negative pressure system of claim 5, further comprising a dry air source; and the drying air source is connected with an air inlet of the vacuum breaking valve.
7. The negative pressure system of claim 6, wherein the air inlet of the vacuum break valve is further connected with a bypass valve; and a dew point meter and a dust meter are further arranged at the air inlet of the bypass valve.
8. Battery formation apparatus comprising a negative pressure system according to any one of claims 1-7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320999317.5U CN220209059U (en) | 2023-04-25 | 2023-04-25 | Negative pressure system and battery formation equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320999317.5U CN220209059U (en) | 2023-04-25 | 2023-04-25 | Negative pressure system and battery formation equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220209059U true CN220209059U (en) | 2023-12-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320999317.5U Active CN220209059U (en) | 2023-04-25 | 2023-04-25 | Negative pressure system and battery formation equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220209059U (en) |
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2023
- 2023-04-25 CN CN202320999317.5U patent/CN220209059U/en active Active
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Address after: 518000, Unit 302, AB, Building 3, Shangzhi Science and Technology Park, No. 380 Guangming Avenue, Tangwei Community, Fenghuang Street, Guangming District, Shenzhen, Guangdong Province Patentee after: Shenzhen Ruinong Innovation Technology Co.,Ltd. Country or region after: China Address before: 2 / F, building B, Babai Industrial Park, No.2 Industrial Zone, baihuadong Baihuayuan Road, Guangming Street, Guangming District, Shenzhen, Guangdong 518000 Patentee before: Shenzhen Ruinong Innovation Technology Co.,Ltd. Country or region before: China |