CN213752787U

CN213752787U - Liquid leakage prevention polymer soft package lithium ion battery

Info

Publication number: CN213752787U
Application number: CN202023234931.8U
Authority: CN
Inventors: 裴斧; 杨雄鹰; 向波; 李攀
Original assignee: Heyuan Dongrun New Energy Technology Co ltd
Current assignee: Heyuan Dongrun New Energy Technology Co ltd
Priority date: 2020-12-28
Filing date: 2020-12-28
Publication date: 2021-07-20
Anticipated expiration: 2030-12-28

Abstract

The utility model discloses a soft packet of lithium ion battery of leak protection liquid polymer, including rolling up core, utmost point ear and packaging shell, the inside of packaging shell has been seted up and has been held the chamber, roll up core fixed mounting in the inside that holds the chamber, the top fixed mounting who rolls up the core has two utmost point ears, the opening that supplies utmost point ear to pass is seted up at the top of packaging shell, equal fixed mounting has a plurality of installation shells on packaging shell left side outer wall and the right side outer wall, the inside sliding connection of installation shell has the mounting panel, one side fixed mounting of mounting panel has the connecting rod, set up on the installation shell and supply the gliding sliding opening of connecting rod, the connecting rod is kept away from the one end fixedly connected with protection frame of mounting panel. The utility model relates to a soft packet of lithium ion battery technical field, simple structure has fine buffering protection effect, avoids the soft packet of lithium ion battery of polymer to receive the condition that appears the weeping after assaulting, has effectively prolonged the soft packet of lithium ion battery's of polymer life.

Description

Liquid leakage prevention polymer soft package lithium ion battery

Technical Field

The utility model relates to a soft packet of lithium ion battery technical field especially relates to a soft packet of lithium ion battery of prevention of liquid leakage polymer.

Background

The soft package lithium battery is only provided with a polymer shell on the liquid lithium ion battery. Structurally, the aluminum-plastic film is adopted for packaging, and the soft package battery can only blow and crack at most under the condition of potential safety hazard.

The existing polymer soft package lithium ion battery does not have a good protection function, when the polymer soft package lithium ion battery is impacted, extruded and the like, liquid inside the battery is easy to leak, and the service life of the polymer soft package lithium ion battery is shortened.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problem existing in the prior art and providing a soft packet of lithium ion battery of leak protection liquid polymer.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a liquid leakage prevention polymer soft package lithium ion battery comprises a winding core, tabs and a packaging shell, wherein an accommodating cavity is formed in the packaging shell, the winding core is fixedly arranged in the accommodating cavity, two tabs are fixedly arranged at the top of the winding core, openings for the tabs to pass through are formed in the top of the packaging shell, a plurality of mounting shells are fixedly arranged on the left outer wall and the right outer wall of the packaging shell respectively, a mounting plate is connected to the inside of the mounting shell in a sliding manner, a connecting rod is fixedly arranged on one side of the mounting plate, a sliding opening for the connecting rod to slide is formed in the mounting shell, a protective frame is fixedly connected to one end, away from the mounting plate, of the connecting rod, a first spring is sleeved on the connecting rod, one end of the first spring is fixedly connected with the side wall of the mounting shell, the other end of the mounting shell is fixedly connected with the inner wall of the protective frame, and a second spring is fixedly arranged on one side, away from the connecting rod, of the mounting plate, the one end that the mounting panel was kept away from to the second spring and the inside wall fixed connection of installation shell.

Preferably, the outer surface fixed mounting of protection frame has the blotter, the blotter is the rubber material.

Preferably, a plurality of heat dissipation holes are equidistantly formed in the protective frame, and the heat dissipation holes are circular through holes.

Preferably, the pole lug is sleeved with an insulating sleeve, and the outer wall of the insulating sleeve is tightly abutted to the inner wall of the through opening.

Preferably, heat-conducting silica gel is filled between the packaging shell and the winding core, and the thickness of the heat-conducting silica gel is 4-6 mm.

Preferably, the protective frame is C-shaped, and the thickness of the protective frame is 1-2 cm.

Compared with the prior art, the beneficial effects of the utility model are that:

1. carry out preliminary protection to rolling up the core through the packaging shell, can protect the packaging shell through the protective frame, and then improved the safeguard effect to rolling up the core, through the protective frame, the installation shell, the mounting panel, the connecting rod, the effect that can play the buffering impact force is used in the cooperation of first spring and second spring, avoided current polymer soft packet lithium ion battery not to have fine protect function, receive striking when polymer soft packet lithium ion battery, when unsafe behavior such as extrusion, lead to the problem of the inside liquid leakage of battery easily, polymer soft packet lithium ion battery's life has been prolonged.

2. Play fine insulating effect through insulating cover, can effectually keep apart other media except that rolling up the core with utmost point ear, can play fine sealed effect simultaneously, avoid rolling up the inside liquid leakage of core, can effectual transmission heat through setting up of heat conduction silica gel, improved the heat dispersion of rolling up the core.

Drawings

Fig. 1 is a schematic structural diagram of a liquid leakage preventing polymer soft-package lithium ion battery provided by the present invention;

fig. 2 is a schematic view of a cross-sectional structure of a liquid-leakage-proof polymer soft-package lithium ion battery in the front view direction according to the present invention;

fig. 3 is an enlarged view of a structure at a in fig. 2.

In the figure: 1. a winding core; 2. a tab; 3. packaging the shell; 4. heat conducting silica gel; 5. heat dissipation holes; 6. an insulating sleeve; 7. a protective frame; 8. mounting a shell; 9. mounting a plate; 10. a connecting rod; 11. a sliding port; 12. a first spring; 13. a second spring.

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.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Referring to fig. 1-3, a liquid leakage prevention polymer soft package lithium ion battery comprises a winding core 1, tabs 2 and a package shell 3, wherein a containing cavity is formed inside the package shell 3, the winding core 1 is fixedly installed inside the containing cavity, two tabs 2 are fixedly installed at the top of the winding core 1, an opening for the tabs 2 to pass through is formed at the top of the package shell 3, a plurality of installation shells 8 are fixedly installed on the left outer wall and the right outer wall of the package shell 3, an installation plate 9 is slidably connected inside the installation shells 8, a connecting rod 10 is fixedly installed at one side of the installation plate 9, a sliding opening 11 for the connecting rod 10 to slide is formed in the installation shell 8, a protection frame 7 is fixedly connected to one end of the connecting rod 10 far away from the installation plate 9, a first spring 12 is sleeved on the connecting rod 10, one end of the first spring 12 is fixedly connected with the side wall of the installation shell 8, and the other end of the installation shell 8 is fixedly connected with the inner wall of the protection frame 7, one side that connecting rod 10 was kept away from to mounting panel 9 is fixed mounting with second spring 13, and the one end that mounting panel 9 was kept away from to second spring 13 is with the inside wall fixed connection of installation shell 8.

Wherein, protective frame 7's fixed surface installs the blotter, and the blotter is the rubber material, and the rubber material has certain elastic deformation ability, and when protective frame 7 received the impact, the blotter can effectual dispersion impact force.

Wherein, a plurality of louvres 5 have been seted up on the equidistant of protective frame 7, and louvre 5 is circular through-hole, can play fine heat dissipation ventilation effect through louvre 5, avoids rolling up the heat that core 1 produced and piles up the condition that leads to the fact core 1 to damage in protective frame 7's inside.

Wherein, the cover is equipped with insulating cover 6 on utmost point ear 2, and the outer wall of insulating cover 6 tightly supports with the inner wall of opening, plays fine insulating effect through insulating cover 6, can effectually keep apart other media except that roll up core 1 with utmost point ear 2, can play fine sealed effect simultaneously, avoids rolling up the inside liquid leakage of core 1.

Wherein, pack between packing shell 3 and the core 1 and have heat conduction silica gel 4, heat conduction silica gel 4's thickness is 4-6mm, and heat conduction silica gel 4 is the heat conduction compound of high-end to and can not solidify, risk such as circuit short circuit can be avoided to the characteristic that can not electrically conduct, and have excellent dampproofing, antidetonation, resistant corona, anti electric leakage performance and chemical medium resistance performance, can effectual transmission heat, improved the heat dispersion of core 1.

Wherein, the protective frame 7 is C-shaped, the thickness of the protective frame 7 is 1-2cm, and the packaging shell 3 can be well protected.

The working principle is as follows: in the utility model, the packaging core 1 is preliminarily protected by the packaging shell 3, the packaging shell 3 can be protected by the protective frame 7, the protective effect on the packaging core 1 is further improved, the protective effect on the packaging core 1 can be improved by the matched use of the protective frame 7, the mounting shell 8, the mounting plate 9, the connecting rod 10, the first spring 12 and the second spring 13 can effectively disperse the impact force when the equipment is impacted, and simultaneously the protective frame 7 is supported by the connection of the mounting shell 8, the mounting plate 9 and the connecting rod 10 with the first spring 12 and the second spring 13, thereby avoiding the problem that the packaging core 1 is easy to deform and damage the original structure when being impacted during use, achieving the effect of strengthening the impact resistance of the packaging core 1, further improving the protective effect on the packaging core 1, and avoiding the existing polymer soft package lithium ion battery not having good protective function, when the polymer soft package lithium ion battery is impacted, extruded and the like, the problem of liquid leakage inside the battery is easily caused, and the service life of the polymer soft package lithium ion battery is prolonged.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a soft packet of lithium ion battery of leak protection liquid polymer, includes roll core (1), utmost point ear (2) and package shell (3), its characterized in that, the chamber that holds has been seted up to the inside of package shell (3), roll core (1) fixed mounting in the inside that holds the chamber, the top fixed mounting of rolling core (1) has two utmost point ears (2), the opening that supplies utmost point ear (2) to pass is seted up at the top of package shell (3), all fixed mounting has a plurality of installation shell (8) on package shell (3) left side outer wall and the right side outer wall, the inside sliding connection of installation shell (8) has mounting panel (9), one side fixed mounting of mounting panel (9) has connecting rod (10), set up on installation shell (8) and supply gliding sliding opening (11) of connecting rod (10), the one end fixedly connected with protection frame (7) of mounting panel (9) are kept away from to connecting rod (10), the cover is equipped with first spring (12) on connecting rod (10), the lateral wall fixed connection of the one end of first spring (12) and installation shell (8), the inner wall fixed connection of the other end of installation shell (8) and protective frame (7), one side fixed mounting that connecting rod (10) were kept away from in mounting panel (9) has second spring (13), the one end that mounting panel (9) were kept away from in second spring (13) and the inside wall fixed connection of installation shell (8).

2. The liquid leakage prevention polymer soft package lithium ion battery according to claim 1, wherein a buffer pad is fixedly installed on the outer surface of the protection frame (7), and the buffer pad is made of rubber.

3. The liquid leakage prevention polymer soft package lithium ion battery according to claim 1, wherein the protective frame (7) is equidistantly provided with a plurality of heat dissipation holes (5), and the heat dissipation holes (5) are circular through holes.

4. The liquid leakage prevention polymer soft package lithium ion battery according to claim 1, wherein the tab (2) is sleeved with an insulating sleeve (6), and an outer wall of the insulating sleeve (6) is tightly abutted to an inner wall of the through opening.

5. The liquid leakage prevention polymer soft package lithium ion battery according to claim 1, wherein a heat conducting silica gel (4) is filled between the package shell (3) and the winding core (1), and the thickness of the heat conducting silica gel (4) is 4-6 mm.

6. The liquid leakage prevention polymer soft package lithium ion battery according to claim 2, wherein the protective frame (7) is in a shape of "C", and the thickness of the protective frame (7) is 1-2 cm.