CN216529222U

CN216529222U - Integral type negative pressure subassembly

Info

Publication number: CN216529222U
Application number: CN202122467758.4U
Authority: CN
Inventors: 蔡琳; 邱立国; 张文科; 马立宇
Original assignee: Zhuhai Titans New Power Electronics Co Ltd
Current assignee: Zhuhai Titans New Power Electronics Co Ltd
Priority date: 2021-10-11
Filing date: 2021-10-11
Publication date: 2022-05-13
Anticipated expiration: 2031-10-11

Abstract

The utility model discloses an integrated negative pressure component, which comprises: the box body is provided with a cavity for containing waste liquid, and the lower part of the cavity is separated into a plurality of first inner cavities by a plurality of baffles; the plurality of negative pressure suction nozzles are arranged on the box body and are respectively communicated with the plurality of first inner cavities in a one-to-one correspondence manner; the cover plate is arranged on the box body and used for sealing the cavity; the integrated negative pressure assembly can reduce the use of pipelines in the negative pressure device.

Description

Integral type negative pressure subassembly

Technical Field

The utility model relates to the field of chemical composition and volume, in particular to an integrated negative pressure assembly.

Background

In the current production process of the lithium battery, the first activation of the lithium battery has important influence on the performance of the battery, and in the formation stage, negative pressure formation is required to be adopted, and gas generated by chemical reaction of the battery is pumped out in time, so that the production of a solid electrolyte interface film is uniform and stable, and the performance of the battery is improved.

In the middle of the present formation equipment, the producer usually adopts whole dish battery formation to set up a plurality of negative pressure cups and suction nozzle in the middle of negative pressure equipment, through pipe connection negative pressure source and a plurality of negative pressure cup, a large amount of pipelines have not only taken more space, so that the cup capacity of negative pressure cup is less, often has electrolyte to spill over in the exhaust process moreover, and the easy hydrops of pipeline content, and then leads to the inside crystallization of pipeline, influences production efficiency.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to solving at least one of the problems of the prior art. Therefore, the utility model provides an integrated negative pressure assembly which can reduce the use of a pipeline in a negative pressure device and can improve the capacity of a negative pressure cup.

The integrated negative pressure assembly of the present invention comprises: the box body is provided with a cavity for containing waste liquid, and the lower part of the cavity is separated into a plurality of first inner cavities by a plurality of baffles; the plurality of negative pressure suction nozzles are arranged on the box body and are respectively communicated with the plurality of first inner cavities in a one-to-one correspondence manner; the cover plate is arranged on the box body and used for sealing the cavity.

According to some embodiments of the utility model, the integrated negative pressure assembly further comprises a partition part arranged in the cavity, the parts of the cavity on two sides of the partition part are a first inner cavity and a second inner cavity respectively, and the first inner cavity and the second inner cavity are communicated.

According to some embodiments of the utility model, the partition is a partition plate provided with a vent hole, and the vent hole communicates the first inner cavity and the second inner cavity.

According to some embodiments of the utility model, the partition is a screen.

According to some embodiments of the utility model, the integrated negative pressure assembly further comprises a seal ring disposed between the cover plate and the tank body.

According to some embodiments of the utility model, the integrated negative pressure assembly further comprises a cover plate detachably connected with the box body, and the cover plate is used for sealing the cavity.

According to some embodiments of the utility model, the cover plate is locked to the case by a plurality of screws.

According to some embodiments of the utility model, the baffle is integrally formed with the tank.

According to some embodiments of the utility model, the integrated negative pressure assembly includes a negative pressure connector disposed on the tank, and the second lumen is in communication with the negative pressure connector.

By applying the integrated negative pressure component, in the using process, the negative pressure component can be connected with a negative pressure source, then the negative pressure source is started, so that negative pressure is transmitted to the cavity through the negative pressure connector and then transmitted to the plurality of negative pressure suction nozzles through the cavity, and the plurality of negative pressure suction nozzles can simultaneously perform negative pressure pumping operation on the plurality of batteries in the tray; need not to set up the back flow in the middle of the equipment and the tube coupling between cup and the collecting tube, effectively reduced the use amount of pipeline in the middle of the negative pressure equipment, promoted negative pressure cup capacity.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is a cross-sectional view of an integrated negative pressure assembly in an embodiment of the present disclosure;

FIG. 2 is an isometric view of an integrated suction assembly in an embodiment of the present invention;

FIG. 3 is an isometric view of an alternative perspective of an integrated suction assembly in accordance with an embodiment of the present invention;

FIG. 4 is a top view of an integrated suction assembly in an embodiment of the present invention;

the above figures contain the following reference numerals.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

In the description of the present invention, it should be understood that the orientation or positional relationship referred to in the description of the orientation, such as the upper, lower, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, the meaning of a plurality of means is one or more, the meaning of a plurality of means is two or more, and more than, less than, more than, etc. are understood as excluding the present number, and more than, less than, etc. are understood as including the present number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present invention, unless otherwise explicitly limited, terms such as arrangement, installation, connection and the like should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific contents of the technical solutions.

Referring to fig. 1, the integrated negative pressure assembly of the present embodiment includes: a tank 100 having a cavity for receiving waste liquid, the lower portion of the cavity being partitioned into a plurality of first inner chambers 120 by a plurality of baffles; a plurality of negative pressure suction nozzles 110 disposed on the case 100, the plurality of negative pressure suction nozzles 110 being respectively communicated with the plurality of first inner cavities 120 in a one-to-one correspondence; and the cover plate 150 is arranged on the box body 100, and the cover plate 150 is used for sealing the cavity.

By applying the integrated negative pressure component, in the using process, the negative pressure connector 160 can be connected to a negative pressure source, and then the negative pressure source is started, so that the negative pressure is transmitted to the cavity through the negative pressure connector 160 and then transmitted to the plurality of negative pressure suction nozzles 110 through the cavity, and the plurality of negative pressure suction nozzles 110 can simultaneously perform negative pressure pumping operation on the plurality of batteries in the tray; need not to set up the back flow in the middle of the equipment and the pipe connection between cup and the collecting pipe, effectively reduced the use amount of pipeline in the middle of the negative pressure equipment.

On the other hand, because the size of the conventional negative pressure cup is limited, after the electrolyte in the battery is filled, part of the electrolyte is pumped out to the collecting pipe, and the electrolyte becomes waste liquid; and use above-mentioned integral type negative pressure subassembly, owing to practiced thrift a large amount of spaces that are taken by the pipeline, the size of the cavity that holds the waste liquid can promote greatly, and electrolyte can not be by in the suction collector pipe.

In addition, in the high-temperature formation stage, due to the difference of the performances of the batteries, the air pressure in the collecting pipe can be caused to fluctuate violently by the difference of the gas production rates of the batteries at the same time and different stages of the same row of batteries at the same time, so that the pressure at the negative pressure pumping part of each battery is uneven, the air pressure in the collecting pipe can fluctuate violently by the difference of the gas production rates, the waste gas of individual battery parameters can not be discharged in time, and the formation quality of the batteries is reduced; in this scheme, the negative pressure of a plurality of negative pressure suction nozzles 110 all comes from the cavity, and the buffer space of cavity is great, can effectively reduce the violent undulant of atmospheric pressure for each negative pressure suction nozzle 110's negative pressure degree of consistency is high, effectively improves the formation quality of battery.

As shown in fig. 1 and 4, the negative pressure assembly further includes a partition portion disposed in the cavity, portions of the cavity located at two sides of the partition portion are a first inner cavity 120 and a second inner cavity 140, respectively, and the first inner cavity 120 is communicated with the second inner cavity 140; at this time, the negative pressure of the negative pressure source sequentially passes through the negative pressure source, the negative pressure joint 160, the second inner cavity 140 and the first inner cavity 120 to reach the negative pressure suction nozzle 110; at this time, the second inner cavity 140 with a larger space can play a role of pressure stabilization, so as to prevent the air pressure from fluctuating too much.

On the other hand, the partition part is a partition plate provided with a vent hole 131, and the vent hole 131 is communicated with the first inner cavity 120 and the second inner cavity 140; when the electrolyte is pumped out under the negative pressure effect and enters the second inner cavity 140 from the first inner cavity 120 through the air holes 131, the air holes 131 can break bubbles carried in the electrolyte, and the bubbles are prevented from breaking at other positions to pollute the corresponding electrolyte.

As shown in fig. 4, the partition may also be a filter screen 130 for filtering the electrolyte flowing through the partition.

As shown in fig. 1, the integrated negative pressure assembly further includes a plurality of baffles, the first inner cavity 120 is divided into a plurality of cavities by the plurality of baffles, and the plurality of cavities are in one-to-one correspondence with the plurality of negative pressure suction nozzles 110; at this time, each negative pressure suction nozzle 110 is communicated with an independent cavity, so that the flow of each negative pressure suction nozzle 110 is uniform and does not interfere with each other, and the second inner cavity 140 communicated with the plurality of cavities can play a role of pressure stabilization to equalize the pressure in each cavity.

As shown in fig. 1 and 4, the integrated negative pressure assembly further includes a cover plate 150, the cover plate 150 is detachably connected to the box 100, and the cover plate 150 is used for sealing the cavity; when the various spaces inside the cabinet 100 need to be cleaned, the cover plate 150 can be detached for cleaning; the cover plate 150 can be detachably connected to the box 100 in various ways, such as providing a sliding slot on the box 100, inserting the cover plate 150 into the sliding slot, or providing a magnet on the box 100, and attracting the cover plate 150 to the box 100 by magnetic force.

Specifically, the integrated negative pressure assembly further comprises a sealing ring, and the sealing ring is arranged between the cover plate 150 and the box body 100; the sealing ring can effectively block the gap between the cover plate 150 and the box body 100, and isolate the cavity from the outside.

Specifically, the cover plate 150 is locked with the case 100 by a plurality of screws; adopt screw locking can guarantee that apron 150 and box 100 are detachable simultaneously, strengthen the fixed strength of apron 150 and box 100, prevent that electrolyte from volatilizing to the air.

Specifically, the baffle is integrally formed with the tank.

As shown in fig. 1, the integrated negative pressure assembly further includes: the negative pressure joint 160 is arranged on the box body 100, and the second inner cavity 140 is communicated with the negative pressure joint 160; wherein the negative pressure connector 160 is used for connecting a negative pressure source.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present invention.

Claims

1. An integrated negative pressure assembly, comprising:

a tank (100) having a cavity for containing waste liquid, the lower portion of the cavity being partitioned into a plurality of first inner chambers (120) by a plurality of baffles;

the negative pressure suction nozzles (110) are arranged on the box body (100), and the negative pressure suction nozzles (110) are respectively communicated with the first inner cavities (120) in a one-to-one correspondence manner;

the cover plate (150), the cover plate (150) set up in on box (100), the cover plate (150) is used for sealing the cavity.

2. The integrated negative pressure assembly of claim 1, further comprising a partition disposed in the cavity, wherein the cavity is divided into a first inner cavity (120) and a second inner cavity (140) at two sides of the partition, and the first inner cavity (120) and the second inner cavity (140) are communicated.

3. The integrated negative pressure assembly of claim 2, wherein the partition is a partition plate having a vent hole (131), and the vent hole (131) communicates the first inner chamber (120) and the second inner chamber (140).

4. The integrated suction assembly of claim 2, wherein the partition is a screen (130).

5. The integrated negative pressure assembly of claim 1, further comprising a seal ring disposed between the cover plate (150) and the tank (100).

6. The integrated negative pressure assembly of claim 5, wherein the cover plate (150) is removably connected to the tank (100).

7. The integrated negative pressure assembly of claim 6, wherein the cover plate (150) is secured to the tank (100) by a plurality of screws.

8. The integrated negative pressure assembly of claim 1, wherein the baffle is integrally formed with the tank.

9. The integrated suction assembly of claim 2, comprising a suction connection (160) disposed on the tank (100), the second interior cavity (140) being in communication with the suction connection (160).