CN210837935U

CN210837935U - Liquid injection needle for soft package battery

Info

Publication number: CN210837935U
Application number: CN201922313474.2U
Authority: CN
Inventors: 赵云; 金润星; 王猛
Original assignee: Jiewei Power Industry Jiangsu Co ltd
Current assignee: Jiewei Power Industry Jiangsu Co ltd
Priority date: 2019-12-20
Filing date: 2019-12-20
Publication date: 2020-06-23
Anticipated expiration: 2029-12-20

Abstract

The utility model discloses a laminate polymer battery annotates liquid needle, including annotating liquid needle main part, the top of annotating liquid needle main part is provided with the needle tubing, and the bottom of needle tubing is fixed with the toper pipe, the both sides of toper pipe have been seted up and have been annotated the liquid mouth, the bottom of toper pipe is connected with the connecting pipe, and the bottom of connecting pipe installs and annotate the liquid shower nozzle, annotate the bottom of liquid shower nozzle and seted up and annotate the liquid mouth, needle tubing, toper pipe, connecting pipe and annotate liquid shower nozzle integrated into one piece, and communicate each other. The utility model discloses a liquid injection nozzle and nine notes liquid mouths that the toper pipe that sets up and the liquid injection mouth that the toper pipe bilateral symmetry set up are combining the setting for it is big to go out the liquid area, can reduce liquid pressure effectively, when improving liquid injection speed, does not harm electric core, and electrolyte does not splash, and can guarantee not hang liquid non-drip liquid with its inner wall polishing, has improved liquid quality of annotating effectively, effectively solves the problem that liquid speed and liquid quality conflict on the prior art.

Description

Liquid injection needle for soft package battery

Technical Field

The utility model relates to a annotate liquid equipment technical field, specifically be a laminate polymer battery annotates liquid needle device.

Background

The lithium ion battery has high energy density, stable voltage platform, long cycle life and small self-discharge, and is widely applied to the fields of portable electronic products, electric tools and traffic. With the support of the country to the new energy field, the output of lithium ion batteries is increasing year by year, wherein soft package lithium ion batteries are widely favored due to good safety performance. In the production process of the soft package lithium ion battery, a liquid injection machine is required to inject liquid. In general, the injection speed of an injection machine is severely limited to the production speed of the battery, the battery capacity is gradually increased along with the development of the technology, the injection amount required by a single battery is already over 100mL, and the injection speed is required to be over 40mL/s in order not to affect the production efficiency.

The traditional single-hole straight tube liquid injection needle can cause the problem of electrolyte splashing under the condition of high-speed liquid injection, pollute the surface of a battery, influence the liquid injection precision of the battery, damage the battery by high-speed electrolyte flow and other adverse conditions.

The existing liquid injection needle has irreconcilable conflict between liquid injection quality and liquid injection speed, and the development of a lithium ion battery is seriously limited.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a laminate polymer battery annotates liquid needle device to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a laminate polymer battery annotates liquid needle device, is including annotating liquid needle main part, the top of annotating liquid needle main part is provided with the needle tubing, and the bottom of needle tubing is fixed with the toper pipe, the liquid mouth has been seted up to the both sides of toper pipe, the bottom of toper pipe is connected with the connecting pipe, and the bottom of connecting pipe installs and annotate the liquid shower nozzle, the bottom of annotating the liquid shower nozzle has been seted up and has been annotated the liquid mouth, needle tubing, toper pipe, connecting pipe and annotate liquid shower nozzle integrated into one piece, and communicate.

Preferably, the inner walls of the needle tube, the conical tube, the connecting tube and the liquid injection nozzle are polished.

Preferably, the taper of the conical pipe is 2:1, and the two liquid injection nozzles are symmetrically arranged about the longitudinal central axis of the conical pipe.

Preferably, the number of the liquid pouring ports is nine, and the diameter of each liquid pouring port is 1 mm.

Preferably, the bottom outside the liquid injection nozzle is provided with an arc-shaped chamfer.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses a liquid injection nozzle and nine notes liquid mouths that the toper pipe that sets up and the liquid injection mouth that the toper pipe bilateral symmetry set up are combining the setting for it is big to go out the liquid area, can reduce liquid pressure effectively, when improving liquid injection speed, does not harm electric core, and electrolyte does not splash, and can guarantee not hang liquid non-drip liquid with its inner wall polishing, has improved liquid quality of annotating effectively, effectively solves the problem that liquid speed and liquid quality conflict on the prior art.

Drawings

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a cross-sectional view of the present invention.

In the figure: 1. a liquid injection needle body; 2. a tapered tube; 3. a connecting pipe; 4. a liquid injection nozzle; 5. a liquid injection port; 6. a liquid injection nozzle; 7. a needle cannula.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-2, the present invention provides an embodiment: the utility model provides a laminate polymer battery annotates liquid needle device, includes annotates liquid needle main part 1, and the top of annotating liquid needle main part 1 is provided with needle tubing 7, and the bottom of needle tubing 7 is fixed with conical duct 2, and liquid mouth 6 has been seted up to conical duct 2's both sides, and conical duct 2's bottom is connected with connecting pipe 3, and connecting pipe 3's bottom installs and annotate liquid shower nozzle 4, annotates the bottom of liquid shower nozzle 4 and has seted up notes liquid mouth 5, and needle tubing 7, conical duct 2, connecting pipe 3 and annotate liquid shower nozzle 4 integrated into one piece, and communicate each.

Please refer to fig. 1, the inner walls of the needle tube 7, the conical tube 2, the connecting tube 3 and the liquid injection nozzle 4 are all polished, the polished inner walls have smooth surfaces, liquid hanging and liquid dropping are avoided, and electrolyte pollution can be reduced, the taper of the conical tube 2 is 2:1, the two liquid injection nozzles 6 are symmetrically arranged about the longitudinal central axis of the conical tube 2, and the liquid injection area is large and the liquid injection speed is increased through the arranged liquid injection nozzles 6.

The figure of annotating liquid mouth 5 is nine, and every diameter of annotating liquid mouth 5 is 1mm, and the bottom in annotating the liquid shower nozzle 4 outside is provided with the arc chamfer for it is big to go out the liquid area, can reduce liquid pressure effectively, when improving the notes liquid speed, does not harm electric core, and electrolyte does not splash.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides a laminate polymer battery annotates liquid needle, includes annotate liquid needle main part (1), its characterized in that: annotate the top of liquid needle main part (1) and be provided with needle tubing (7), and the bottom of needle tubing (7) is fixed with toper pipe (2), the both sides of toper pipe (2) have been seted up and have been annotated liquid mouth (6), the bottom of toper pipe (2) is connected with connecting pipe (3), and the bottom of connecting pipe (3) is installed and is annotated liquid shower nozzle (4), annotate the bottom of liquid shower nozzle (4) and seted up and annotate liquid mouth (5), needle tubing (7), toper pipe (2), connecting pipe (3) and annotate liquid shower nozzle (4) integrated into one piece, and communicate each other.

2. The liquid injection needle for the soft package battery according to claim 1, characterized in that: the inner walls of the needle tube (7), the conical tube (2), the connecting tube (3) and the liquid injection nozzle (4) are all subjected to polishing treatment.

3. The liquid injection needle for the soft package battery according to claim 1, characterized in that: the taper of the conical pipe (2) is 2:1, and the two liquid injection nozzles (6) are symmetrically arranged around the longitudinal central axis of the conical pipe (2).

4. The liquid injection needle for the soft package battery according to claim 1, characterized in that: the number of the liquid injection ports (5) is nine, and the diameter of each liquid injection port (5) is 1 mm.

5. The liquid injection needle for the soft package battery according to claim 1, characterized in that: and an arc-shaped chamfer is arranged at the bottom of the outer side of the liquid injection spray head (4).