CN214701472U

CN214701472U - Electricity core dewatering equipment

Info

Publication number: CN214701472U
Application number: CN202120290581.2U
Authority: CN
Inventors: 郭作龙
Original assignee: Guoxing Dongguan New Energy Technology Co ltd
Current assignee: Guoxing Dongguan New Energy Technology Co ltd
Priority date: 2021-02-02
Filing date: 2021-02-02
Publication date: 2021-11-12
Anticipated expiration: 2031-02-02

Abstract

The utility model discloses an electric core dewatering device, which comprises a frame, wherein a cavity with medium-low vacuum or negative pressure, a heating device and a refrigerating device are arranged on the frame; a microchannel pipe and a collecting pipe are arranged in the cavity of the medium-low vacuum or negative pressure, a plurality of microchannel pipes which are distributed at intervals up and down are arranged between the two collecting pipes, and the collecting pipes are communicated with the microchannel pipes; and the heating device or the cooling device is circularly communicated with the two collecting pipes through a liquid delivery pump, a valve and a pipeline. The boiling point of water is reduced under the vacuum condition, and meanwhile, the internal gas concentration in the battery cell is higher than the gas concentration in the medium-low vacuum cavity or the negative pressure cavity, so that the gas in the battery cell can diffuse into the medium-low vacuum cavity or the negative pressure cavity, the vacuum obtaining equipment works to take out the gas in the battery cell and take away moisture, and the water removing effect is achieved.

Description

Electricity core dewatering equipment

Technical Field

The utility model relates to a lithium ion battery production technical field especially relates to an electricity core dewatering equipment.

Background

In the production process of batteries, especially in the production and preparation process of lithium batteries, the battery core needs to be dewatered for controlling the water content of the batteries. The traditional water removal method comprises the following steps: placing the battery core in a heating cavity, and introducing hot air into the heating cavity by a heating body to heat and remove water; then the electric core is transferred to a cooling cavity, nitrogen or dry gas is injected to replace and take away gaseous water, and meanwhile, the electric core is cooled; in the process, the temperature of the heating cavity is sensed by the sensor and then fed back to the heating body, and the temperature is regulated and controlled by switching on or off the heating body or reducing the voltage.

The traditional water removal method has the following disadvantages: (1) the hot air, the nitrogen or the dry gas are used for heating and cooling, so that the heat exchange efficiency is low, the energy consumption is high, and the temperature consistency is difficult to ensure; (2) need transport electric core, lead to the moisture regain easily in the transportation, and the transportation has improved the time cost.

Chinese patent 201920372097.7 discloses a high vacuum microchannel water removal device for a soft package lithium battery, which is a previous patent application of the applicant of the present application, and in practical production application, the inventor finds that the high vacuum water removal of the prior art has high requirements on a vacuum pump and high production cost, and can reduce the cost by using medium or low vacuum or negative pressure to improve the effect.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is according to above-mentioned prior art not enough, provide an electricity core dewatering equipment, its energy consumption is low, and the temperature is unanimous, and can not lead to the battery to regain moisture.

The technical scheme of the utility model as follows:

a cell dewatering device comprises a rack, wherein a cavity with medium-low vacuum or negative pressure, a heating device and a refrigerating device are arranged on the rack; a microchannel pipe and a collecting pipe are arranged in the cavity of the medium-low vacuum or negative pressure, a plurality of microchannel pipes which are distributed at intervals are arranged between the two collecting pipes, and the collecting pipes are communicated with the microchannel pipes; and the heating device or the cooling device is circularly communicated with the two collecting pipes through liquid conveying equipment, valves and pipelines.

Furthermore, the cavity of the medium-low vacuum or negative pressure comprises a rear shell and a front cover, one side of the front cover is connected with one side of the rear shell through a hinge, a hinge and other movable connecting devices, and the other side of the front cover is detachably connected with the other side of the rear shell through a hasp lock; the microchannel and manifold are mounted within the back shell.

Further, a sealing device is arranged on the back of the front cover; when the front cover and the rear shell are closed, the sealing device is tightly attached to the front opening of the rear shell, so that the cavity with medium-low vacuum or negative pressure is kept sealed.

Furthermore, the back surface of the rear shell is communicated with a vacuum pump or a negative pressure device.

Further, a control panel is arranged on the front face of the front cover.

Furthermore, one of the collecting pipes is communicated with a liquid inlet pipe, and the other collecting pipe is connected with a liquid outlet pipe; and liquid in the heating device and the cooling device enters the collecting pipe from the liquid inlet pipe, enters the other collecting pipe through the microchannel pipe, and then flows into the hot liquid box or the cold liquid box again from the liquid outlet pipe.

Furthermore, the bottom of the frame is provided with a universal wheel, a support, a foot rest and other supporting devices.

Compared with the prior art, the utility model discloses following beneficial effect has:

(1) the boiling point of water is reduced under the vacuum condition, and meanwhile, the internal gas concentration of the battery cell in the battery cell is higher than that of the medium-low vacuum cavity or the negative pressure cavity, so that the gas of the battery cell can diffuse into the medium-low vacuum cavity or the negative pressure cavity, the vacuum pump works, the gas in the battery cell is taken out, and meanwhile, the moisture is taken away, and the water removal effect is achieved.

(2) The heating device in the cavity with medium-low vacuum or negative pressure in the device supplements energy for the battery cell volatile gas, the energy supplementing process is that the battery cell is directly contacted with the microchannel tube and is heated in a contact heat transfer mode under the vacuum condition, the heat efficiency is high, the energy consumption is low, and the temperature is consistent; after the water removal is finished, the hot liquid tank is switched to a cold liquid tank, the temperature of the battery is reduced in a vacuum or negative pressure environment, and the moisture regaining of the water vapor evaporated from the battery is prevented.

(3) Through carrying out reasonable ratio to the liquid in heating device and the cooling device and mixing, and then reach the effect of accuse temperature, accuse temperature is accurate and do not have the hysteresis quality.

(4) The microchannel tube is arranged in the cavity with medium-low vacuum or negative pressure, so that two functions of heating and cooling can be realized, the battery does not need to be transported, and the moisture regaining of the battery due to transportation is avoided; meanwhile, a heating cavity and a cooling cavity are not required to be arranged, and the manufacturing cost of the equipment is further reduced.

(5) The vacuum state in the cavity with medium-low vacuum or negative pressure can reduce the occurrence of convection heat transfer and contact heat transfer, thereby realizing heat preservation, reducing energy consumption and being environment-friendly.

(6) The sealing device between the back of the front cover and the rear shell can improve the sealing performance of the cavity with medium-low vacuum or negative pressure.

(7) The preferable liquid inlet pipe is lower than the liquid outlet pipe, so that the liquid can flow more uniformly and sufficiently in the microchannel pipe, and the temperature consistency is ensured.

Drawings

Fig. 1 is a perspective view of the embodiment.

Fig. 2 is an exploded view of the embodiment.

Fig. 3 is a perspective view of the rear case in the embodiment.

Reference numerals

10-a frame, 11-universal wheels, 20-a cavity with medium-low vacuum or negative pressure, 21-a rear shell, 22-a front cover, 23-a sealing ring, 25-a vacuum pump, 26-a control panel, 31-a hot liquid tank, 32-a cold liquid tank, 41-a microchannel tube, 42-a collecting pipe, 43-a water inlet pipe and 44-a water outlet pipe.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in further detail with reference to the accompanying drawings.

Example 1:

as shown in fig. 1-3, an embodiment of the present invention provides a battery cell water removing apparatus, which includes a frame 10, and the frame 10 is provided with a cavity 20 with a medium-low vacuum or negative pressure, a hot liquid tank 31, and a cold liquid tank 32.

A micro-channel tube 41 and a collecting tube 42 are arranged in the cavity 20 with medium-low vacuum or negative pressure, a plurality of micro-channel tubes 41 distributed at intervals up and down are arranged between the two collecting tubes 42, and the collecting tubes 42 are communicated with the micro-channel tubes 41; the hot liquid tank 31 and the cold liquid tank 32 are in circulating communication with the two collecting pipes 42 through liquid conveying equipment, valves and pipelines. Wherein, a heating mechanism, such as an electric heating rod, is arranged in the hot liquid tank 31; a refrigerating mechanism, such as a semiconductor refrigerating sheet, is arranged in the cold liquid tank 32; the vacuum state in the cavity with medium-low vacuum or negative pressure can reduce the occurrence of convection heat transfer and contact heat transfer, thereby realizing heat preservation and reducing energy consumption.

The cavity 20 of medium-low vacuum or negative pressure comprises a rear shell 21 and a front cover 22, one side of the front cover 22 is connected with one side of the rear shell 21 through a hinge, and the other side of the front cover 22 is detachably connected with the other side of the rear shell 21 through a hasp lock; microchannel tubes 41 and manifold 42 are mounted within back shell 21.

The back of the front cover 22 is provided with a sealing ring 23, when the front cover 22 and the rear shell 21 are closed, the sealing ring 23 is tightly attached to the front opening of the rear shell 21, so that the cavity 20 with medium-low vacuum or negative pressure keeps sealed.

The back of the rear shell 21 is communicated with a vacuum pump 25. Wherein, the vacuum pump 25 vacuumizes the middle-low vacuum cavity 20, and further carries away the water vapor.

As another embodiment of the present invention, the negative pressure pump 25 may pump the negative pressure chamber 20.

The front cover 22 is provided with a control panel 26 on the front. Wherein, the user can control the operation of the liquid delivery device, the valve, the vacuum pump 25, the hot liquid tank 31 and the cold liquid tank 32 through the control panel 26, so as to control the temperature in the cavity 20 with medium-low vacuum or negative pressure.

The lower end of one collecting pipe 42 is communicated with a water inlet pipe 43, and the upper end of the other collecting pipe 42 is connected with a water outlet pipe 44; the liquid in the hot liquid tank 31 and the cold liquid tank 32 enters the header 42 from the inlet pipe 43, enters the other header 42 through the microchannel tube 41, and then flows into the hot liquid tank 31 or the cold liquid tank 32 again from the outlet pipe 44. Wherein, inlet tube 43 is lower than outlet pipe 44, can make the flow of liquid more even abundant in microchannel pipe 41, guarantees the uniformity of temperature.

The bottom of the frame 10 is provided with a universal wheel 11, which is convenient to move.

As another embodiment of the present invention, a bracket may be disposed at the bottom of the frame 10.

The above disclosure is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the scope of the invention, which is defined by the appended claims. .

The above is not intended to limit the technical scope of the present invention, and any modifications, equivalent changes and modifications to the above embodiments are all within the scope of the technical solution of the present invention.

Claims

1. The utility model provides a electricity core dewatering equipment which characterized in that: the vacuum refrigeration device comprises a rack, wherein a cavity, a heating device and a refrigerating device which work in a medium-low vacuum or negative pressure range are arranged on the rack; a microchannel pipe and a collecting pipe are arranged in the cavity of the medium-low vacuum or negative pressure, a plurality of microchannel pipes which are distributed at intervals are arranged between the two collecting pipes, and the collecting pipes are communicated with the microchannel pipes; and the heating device or the cooling device is circularly communicated with the two collecting pipes through a liquid delivery pump, a valve and a pipeline.

2. The cell dewatering apparatus of claim 1, wherein: the middle-low vacuum or negative pressure cavity comprises a rear shell and a front cover, one side of the front cover is connected with one side of the rear shell through a movable connecting device, and the other side of the front cover is detachably connected with the other side of the rear shell through a hasp lock; the microchannel and manifold are mounted within the back shell.

3. The cell dewatering apparatus of claim 2, wherein: a sealing device is arranged on the back of the front cover; when the front cover and the rear shell are closed, the sealing device is tightly attached to the front opening of the rear shell, so that the cavity with medium-low vacuum or negative pressure is kept sealed.

4. The cell dewatering apparatus of claim 2 or 3, wherein: the back of the rear shell is communicated with a vacuum obtaining device or a negative pressure device.

5. The cell dewatering apparatus of claim 2 or 3, wherein: the front surface of the front cover is provided with a control panel.

6. The cell dewatering apparatus of claim 1, wherein: one collecting pipe is communicated with a liquid inlet pipe, and the other collecting pipe is connected with a liquid outlet pipe; and liquid in the heating device and the cooling device enters the collecting pipe from the liquid inlet pipe, enters the other collecting pipe through the microchannel pipe, and then flows into the heating device or the cooling device again from the liquid outlet pipe.

7. The cell dewatering apparatus of claim 1, wherein: and a supporting device is arranged at the bottom of the rack.