CN210074026U

CN210074026U - Improved device for vacuumizing before liquid injection and preventing electrolyte from overflowing

Info

Publication number: CN210074026U
Application number: CN201921265295.XU
Authority: CN
Inventors: 李浩宇; 汪涛; 杨文琪; 王伟
Original assignee: Bozhon Precision Industry Technology Co Ltd
Current assignee: Bozhon Precision Industry Technology Co Ltd
Priority date: 2019-08-06
Filing date: 2019-08-06
Publication date: 2020-02-14
Anticipated expiration: 2029-08-06

Abstract

The utility model discloses an improved device for vacuumizing before liquid injection and preventing electrolyte from overflowing, which comprises a columnar cup body, wherein two ends of the cup body are provided with end cover connecting pieces; the one-way valve is assembled on the end cover connecting piece on the upper side; the one-way valve comprises a valve body and a valve rod, and a vacuumizing channel for vacuumizing in the cup body is arranged on the valve body; the end cover connecting piece at the lower side is provided with a buffer nozzle; a siphon pipe unit is arranged in the cup body; the siphon unit includes connected to the communicating portions respectively: a suction end and a discharge end; the discharge end is communicated with the buffer nozzle; the suction end is higher than the discharge end; and a circulation gap is arranged between the suction end and the bottom surface of the end cover connecting piece; the communicating part is higher than the suction end. The vacuum pumping pressurize when this device can be used to contact battery, gets into the battery by the siphon effect when the electrolyte is injected, and the pollution equipment is not initiatively spilled over to electrolyte in the cup when the cup breaks away from the battery, enters into in the battery fast from four positions to also have stronger adsorption efficiency to the raffinate simultaneously.

Description

Improved device for vacuumizing before liquid injection and preventing electrolyte from overflowing

Technical Field

The utility model relates to a battery annotates liquid equipment field, especially an improvement device that evacuation and prevent electrolyte from spilling over before annotating liquid.

Background

The electrolyte injection refers to a process of injecting the liquid electrolyte into the battery from the electrolyte injection port by controlling the amount and injection time of the liquid electrolyte. The common electrolyte injection methods are mainly classified into two types, one is to inject electrolyte directly through an electrolyte injection hole (the most mainstream method), and the other is to put the battery into electrolyte to allow the electrolyte to permeate into the battery. In the process of liquid injection, the liquid injection system is mainly influenced by two factors of the liquid injection system and the system pressure. The system pressure can affect the processes of battery liquid injection preparation, liquid injection, infiltration before sealing, infiltration after sealing and the like, and the system pressure is the most important influencing factor in the liquid injection and infiltration processes of the battery system. At present, the problem that a large amount of electrolyte overflows when a cup body is lifted due to the condition that the battery cannot be completely injected after liquid injection exists in the industry so as to corrode a machine table.

SUMMERY OF THE UTILITY MODEL

The technical scheme of the utility model is that: an improved device for vacuumizing before liquid injection and preventing electrolyte from overflowing comprises a cylindrical cup body, wherein end cover connecting pieces are arranged at two ends of the cup body. A check valve is assembled on the end cover connecting piece at the upper side and inserted into the cup body. The check valve comprises a valve body and a valve rod, and a vacuumizing channel for vacuumizing in the cup body is arranged on the valve body. The end cover connecting piece on the lower side is provided with a buffer nozzle which can be used for butt joint liquid injection.

Be provided with the siphon unit in the cup, the siphon unit is including being connected to the intercommunication portion respectively: a suction end and a discharge end. The discharge end is communicated with the buffer nozzle, and the suction end is higher than the discharge end; and a circulation gap is arranged between the suction end and the bottom surface of the end cover connecting piece; the communicating part is higher than the suction end.

Preferably, the buffering nozzle is assembled with the end cover connecting piece through the sealing connecting assembly; the sealing connection component is provided with a sunken open slot to match with the suction end.

Preferably, the outer ring of the seal connection assembly is provided with a conical bottom surface of revolution higher than the suction end.

Preferably, the siphon unit comprises at least one suction end.

The utility model has the advantages that: the evacuation pressurize when this device can be used to the contact battery, get into the battery by the siphon effect when the electrolyte is injected, and the pollution equipment is not initiatively spilled over to electrolyte in the cup when the cup breaks away from the battery, and it is higher with traditional single tube and deposits difference electrolyte concentration, enters into in the battery fast from four positions to also have stronger adsorption efficiency to the raffinate simultaneously.

Drawings

The invention will be further described with reference to the following drawings and examples:

FIG. 1 is a front view of the improved apparatus;

FIG. 2 is a cross-sectional view taken along section A-A;

FIG. 3 is a partial enlarged view at B;

FIG. 4 is a sectional view of a siphon tube;

wherein: 1. a cup body; 2. an end cap connector; 3. a one-way valve; 4. a valve stem; 5. a buffer nozzle; 6. a siphon unit; 7. a suction end; 8. a discharge end; 9. a communicating portion; 10. an open slot; 11. a conical rotary bottom surface.

Detailed Description

Example (b):

as shown in the attached fig. 1-4, an improved device for vacuumizing before liquid injection and preventing electrolyte from overflowing comprises a cylindrical cup body 1, wherein two ends of the cup body 1 are provided with end cover connecting pieces 2. A check valve is assembled on the end cover connecting piece at the upper side and inserted into the cup body. The check valve 3 comprises a valve body and a valve rod 4, and a vacuumizing channel for vacuumizing in the cup body is arranged on the valve body. The end cover connecting piece on the lower side is provided with a buffer nozzle 5, and the buffer nozzle 5 can be used for butt joint liquid injection. The buffering mouth 5 is assembled with the end cover connecting piece through a sealing connecting assembly, and the sealing connecting assembly comprises a sealing ring.

A siphon unit 6 is provided inside the cup, the siphon unit 6 comprising: a suction end 7 and a discharge end 8. The discharge end 8 is communicated with the buffer nozzle 5, and the suction end 7 is higher than the discharge end 8; and a circulation gap is arranged between the suction end 7 and the bottom surface of the end cover connecting piece, the circulation gap can ensure that the electrolyte can smoothly enter the siphon, and meanwhile, the flow slowing effect can be achieved. The communicating part 9 is higher than the suction end 7, the siphon is based on the communicating principle, the overflow control is carried out through the different heights of the discharge section and the suction end 7, and in principle, the larger the height difference between the communicating part 9 and the suction end 7 is, the better the overflow control effect is. In order to further stabilize the injection flow rate, a concave open slot 10 is arranged on the sealing connection assembly to match with the suction end, so that the flow rate of the electrolyte entering and exiting the siphon can be effectively controlled.

The outer ring of the sealing connection assembly is provided with a conical rotary bottom surface 11 higher than the suction end, and the conical rotary bottom surface can enable electrolyte to flow to the suction end in a concentrated mode, so that the electrolyte is prevented from remaining in the cup body.

The siphon unit can be provided with a siphon or a plurality of siphons according to the structural requirement, namely, a suction end or a plurality of suction ends. If one siphon is adopted, the communicating part is an inverted U-shaped elbow, and if four siphons are adopted, the communicating part adopts an adapter.

The working principle is as follows:

1. when the cylinder pushes down the one-way valve body, electrolyte can be injected independently, and sealing is kept.

2. The electrolyte enters the battery from the siphon elbow through the siphon effect.

3. The buffer nozzle keeps a sealing state with the battery below under the action of pressing force.

To sum up, this improvement device is by the inseparable combination of bottom buffering mouth and battery, makes before annotating the liquid to the battery evacuation or annotate the evacuation or keep the malleation after the liquid, adopts four-tube structure, has improved the reaction rate of siphon and has accelerated notes liquid efficiency to make and reduce in the cup and remain, have more the advantage.

Adopt four-tube inner structure for the anti-suction is bigger, can guarantee to annotate in the cup not having annotated liquid and can not flow from the rim of a cup in the rising stage after annotating the liquid and accomplishing.

The four-tube structure is adopted, the phenomenon that the normal pressure underflow tube can suck back is avoided, residual liquid remained in the tube is removed, the residual liquid receiving function is simplified, a redundant mechanism is reduced in the subsequent process, the cost is reduced, and the equipment conversion rate is improved.

The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the invention. Modifications and variations can be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which may be made by those skilled in the art without departing from the spirit and technical concepts of the present invention be covered by the claims of the present invention.

Claims

1. An improved device for vacuumizing before liquid injection and preventing electrolyte from overflowing comprises a columnar cup body, wherein end cover connecting pieces are arranged at two ends of the cup body; the method is characterized in that: the one-way valve is assembled on the end cover connecting piece on the upper side; the one-way valve comprises a valve body and a valve rod, and a vacuumizing channel for vacuumizing in the cup body is arranged on the valve body; the end cover connecting piece at the lower side is provided with a buffer nozzle; a siphon pipe unit is arranged in the cup body; the siphon unit includes: a suction end and a discharge end; the discharge end is communicated with the buffer nozzle; the suction end is higher than the discharge end; and a circulation gap is arranged between the suction end and the bottom surface of the end cover connecting piece; the communicating part is higher than the suction end.

2. The improved apparatus for evacuating before injection and preventing electrolyte from overflowing of claim 1, wherein: the buffering nozzle is assembled with the end cover connecting piece through a sealing connecting assembly; the sealing connection assembly is provided with a sunken open slot to match the suction end.

3. The improved apparatus for evacuating before injection and preventing electrolyte from overflowing as claimed in claim 2, wherein: the outer ring of the sealing connection assembly is provided with a conical rotary bottom surface higher than the suction end.

4. The improved apparatus for evacuating before injection and preventing electrolyte from overflowing as claimed in claim 2 or 3, wherein: the siphon unit comprises at least one suction end.