CN215771210U

CN215771210U - High-reliability type mobile terminal lithium battery positive and negative electrode and diaphragm structure

Info

Publication number: CN215771210U
Application number: CN202122345511.5U
Authority: CN
Inventors: 杨森; 郜磊; 梅金富
Original assignee: Guangdong Huiteng Technology Co ltd
Current assignee: Guangdong Huiteng Technology Co ltd
Priority date: 2021-09-27
Filing date: 2021-09-27
Publication date: 2022-02-08
Anticipated expiration: 2031-09-27

Abstract

The utility model discloses a high-reliability type mobile terminal lithium battery anode, cathode and diaphragm structure, and relates to the field of electronic products. This positive negative pole of high reliable type mobile terminal lithium cell and diaphragm structure includes mobile terminal shell and lithium cell body, and the inside battery that is equipped with of mobile terminal shell holds the chamber, and lithium cell body fixed mounting holds the intracavity at the battery of mobile terminal shell, and lithium cell body includes two sets of half butt joint casings, and the activity joint has the diaphragm main part between two sets of half butt joint casings, and the inside difference fixed mounting of two sets of half butt joint casings has positive plate and negative plate. This positive negative pole of high reliable type mobile terminal lithium cell and diaphragm structure when using, diaphragm main part convenient installation is between two sets of half butt joint casings to form double-deck sealed between diaphragm main part and the lithium cell body, the leakproofness is good, guarantees that the short circuit phenomenon can not take place between positive plate and the negative plate, guarantees that whole device is stable in utilization.

Description

High-reliability type mobile terminal lithium battery positive and negative electrode and diaphragm structure

Technical Field

The utility model relates to the technical field of electronic products, in particular to a high-reliability type mobile terminal lithium battery positive and negative electrode and diaphragm structure.

Background

In the structure of the lithium battery, a diaphragm is one of key inner layer components, the performance of the diaphragm determines the interface structure, internal resistance and the like of the battery, the characteristics of the battery, such as capacity, circulation, safety performance and the like, are directly influenced, the diaphragm with excellent performance has an important effect on improving the comprehensive performance of the battery, the main effect of the diaphragm is to separate the positive electrode and the negative electrode of the battery, prevent the two electrodes from contacting and short-circuiting, and have the function of enabling electrolyte ions to pass through. The separator material is non-conductive, and the physical and chemical properties of the separator have a great influence on the performance of the battery.

In the prior art, most diaphragm structures are fixed, the sealing performance between the diaphragm and the inside of a battery shell is required to be good, if a gap or an edge is raised, a short circuit state is possibly caused, and the diaphragm is dangerous.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Aiming at the defects of the prior art, the utility model discloses a high-reliability type mobile terminal lithium battery anode, cathode and diaphragm structure, which aims to solve the problems in the background art.

(II) technical scheme

In order to achieve the purpose, the utility model is realized by the following technical scheme: the utility model provides a positive negative pole of high reliable type mobile terminal lithium cell and diaphragm structure, includes:

the mobile terminal comprises a mobile terminal shell, wherein a battery accommodating cavity is formed in the mobile terminal shell;

the lithium battery body is fixedly arranged in a battery accommodating cavity of the mobile terminal shell and comprises two groups of half-butt joint shells, and a diaphragm main body is movably clamped between the two groups of half-butt joint shells;

two sets of the inside of half butt joint casing is fixed mounting respectively has positive plate and negative plate, the structure and the fixed mode of positive plate and negative plate are the same, and two sets of fixedly connected with butt joint cover between the half butt joint casing, two sets of butt joint cover four corners department passes through bolt fixed connection.

Preferably, the battery of the mobile terminal shell is fixedly connected with positioning and mounting rods at four corners of the bottom wall of the battery accommodating cavity, and the positioning block is sleeved and connected with the bottom of the lithium battery body.

Preferably, the sleeve-joint positioning block is movably sleeved on the positioning installation rod, the positioning installation rod is sleeved with the clamping plate, and the positioning installation rod is in threaded connection with the nut sleeve.

Preferably, the outer side of the diaphragm main body is fixedly connected with a sealing frame, the side wall of the butt joint cover is provided with clamping grooves corresponding to the sealing frame, and the sealing frame is movably clamped in the clamping grooves of the two groups of butt joint covers.

Preferably, two sets of first rubber seal grooves are formed in the inner wall of the clamping groove, two sets of second rubber seal grooves are formed in the side wall of the sealing frame, and the first rubber seal grooves and the second rubber seal grooves are movably clamped with first seal rings and second seal rings respectively.

Preferably, the bottom fixedly connected with screens board of negative plate, fixedly connected with mounting base on the inner chamber diapire of half butt joint casing, screens board joint is in mounting base's recess and through the bolt fastening.

The utility model discloses a high-reliability type mobile terminal lithium battery anode, cathode and diaphragm structure, which has the following beneficial effects:

1. this positive negative pole of high reliable type mobile terminal lithium cell and diaphragm structure, when using, diaphragm main part convenient to install between two sets of half butt joint casings to form double-deck sealed between diaphragm main part and the lithium cell body, the leakproofness is good, guarantees that the short circuit phenomenon can not take place between positive plate and the negative plate, guarantees that whole device is stable in utilization.

2. This positive negative pole of high reliable type mobile terminal lithium cell and diaphragm structure, after installing whole lithium cell body, conveniently fix lithium cell body in the mobile terminal shell, and fixed stable for this mobile terminal shell reliability is high, and lithium cell body fixes in the inside of mobile terminal shell, receives the side direction support of mobile terminal shell and location installation pole, further guarantees to keep stable between inside positive plate, negative plate and the diaphragm main part.

Drawings

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

FIG. 2 is a cross-sectional view of a mobile terminal housing of the present invention;

fig. 3 is an exploded view of a lithium battery body according to the present invention;

fig. 4 is a structural view of the negative plate of the present invention;

fig. 5 is an internal view of a half-docking housing of the present invention.

In the figure: 1. a mobile terminal housing; 101. positioning the mounting rod; 102. a chucking plate; 2. a lithium battery body; 200. a half-butt joint housing; 201. sleeving a positioning block; 202. butting covers; 2021. a clamping groove; 2022. a first rubber seal groove; 203. mounting a base; 3. a positive plate; 4. a negative plate; 5. a diaphragm body; 6. a sealing frame; 601. a second rubber sealing groove; 7. a first seal ring; 8. a second seal ring; 9. screens board.

Detailed Description

The embodiment of the utility model discloses a high-reliability type mobile terminal lithium battery anode, cathode and diaphragm structure, as shown in figures 1-5, comprising:

the mobile terminal comprises a mobile terminal shell 1, wherein a battery accommodating cavity is formed in the mobile terminal shell 1;

the lithium battery body 2 is fixedly arranged in a battery accommodating cavity of the mobile terminal shell 1, the lithium battery body 2 comprises two groups of half-butt joint shells 200, and a diaphragm main body 5 is movably clamped between the two groups of half-butt joint shells 200;

according to shown in the attached figures 3 and 4, the two half butt joint shells 200 are fixedly provided with a positive plate 3 and a negative plate 4 inside respectively, the positive plate 3 and the negative plate 4 are identical in structure and fixing mode, the two half butt joint shells 200 are fixedly connected with a butt joint cover 202, four corners of the two half butt joint covers 202 are fixedly connected through bolts, the clamping plates 9 are fixed at the bottoms of the positive plate 3 and the negative plate 4, and the clamping plates 9 are fixed inside the lithium battery body 2.

According to fig. 2, the battery of the mobile terminal housing 1 is fixedly connected with the positioning and mounting rod 101 at the four corners of the bottom wall of the battery accommodating cavity, the positioning block 201 is sleeved with the bottom fixedly connected with of the lithium battery body 2, and the sleeved positioning block 201 is provided with a round hole corresponding to the positioning and mounting rod 101, so that the positioning and mounting rod 101 can be inserted into the round hole to support and position and mount the side wall of the whole lithium battery body 2.

According to the illustration shown in fig. 2, the sleeve positioning block 201 is movably sleeved on the positioning installation rod 101, the clamping plate 102 is sleeved on the positioning installation rod 101, a nut sleeve is connected to the positioning installation rod 101 through a thread, the upper end of the arranged positioning installation rod 101 is provided with a thread, the nut sleeve extrudes the clamping plate 102 after being screwed, and the lithium battery body 2 is clamped and fixed by the clamping plate 102 under pressure.

According to the attached

drawings

3 and 5, the outer side of the diaphragm main body 5 is fixedly connected with a sealing frame 6, the side wall of the butt joint cover 202 is provided with clamping grooves 2021 corresponding to the sealing frame 6, the sealing frame 6 is movably clamped in the clamping grooves 2021 of the two groups of butt joint covers 202, the arranged sealing frame 6 supports and fixes the diaphragm main body 5, and the diaphragm main body 5 is fixedly and supportingly installed after the sealing frame 6 is movably clamped in the clamping grooves 2021.

According to the attached

drawings

3 and 5, two groups of first rubber sealing grooves 2022 are formed in the inner wall of the clamping groove 2021, two groups of second rubber sealing grooves 601 are formed in the side wall of the sealing frame 6, a first sealing ring 7 and a second sealing ring 8 are movably clamped between the two groups of first rubber sealing grooves 2022 and the two groups of second rubber sealing grooves 601 respectively, the width of the set first sealing ring 7 is larger than that of the second sealing ring 8, the first sealing ring is deformed and sealed after being extruded, and after double-layer sealing, the sealing effect of a space interface between the diaphragm main body 5 and the two groups of half-butt-joint shells 200 is good.

According to fig. 4, 5, the bottom fixedly connected with screens board 9 of negative plate 4, fixedly connected with mounting base 203 on the inner chamber diapire of half butt joint casing 200, screens board 9 joint is in mounting base 203's recess and through the bolt fastening, offers the draw-in groove corresponding with screens board 9 on the lateral wall of the mounting base 203 who sets up, and negative plate 4 and positive plate 3 are when the installation is fixed in half butt joint casing 200's inside, easy operation, and receive to support fixedly stable.

When the lithium battery separator is used, the separator main body 5 is conveniently arranged between the two half-butted shells 200, double-layer sealing is formed between the separator main body 5 and the lithium battery body 2, the sealing performance is good, the short circuit phenomenon between the positive plate 3 and the negative plate 4 is avoided, and the use stability of the whole device is ensured.

When the installation is fixed, firstly, the positive plate 3 and the negative plate 4 are respectively installed and fixed inside the two half butt joint shells 200, the clamping plate 9 is clamped into the installation base 203 and is screwed and fixed by using bolts, then the first sealing ring 7 and the second sealing ring 8 are clamped between the two first rubber sealing grooves 2022 and the two second rubber sealing grooves 601, the two half butt joint shells 200 are butted, so that the sealing frame 6 is clamped in the clamping groove 2021, the two butt joint covers 202 are screwed and fixed by using bolts, the clamping of the first sealing ring 7 and the second sealing ring 8 is realized, the first sealing ring 7 and the second sealing ring 8 are extruded under stress, and the deformation is generated to seal the interface in a double-layer manner.

After installing whole lithium cell body 2, conveniently fix lithium cell body 2 in mobile terminal shell 1, and fixed stable for this mobile terminal shell 1 reliability is high.

First will cup joint locating piece 201 alignment location installation pole 101 and sheathe in, then slide lithium cell body 2 to lower, cup joint chucking plate 102 on location installation pole 101 this moment, and make chucking plate 102 and lithium cell body 2's top contact, then screw up the nut cover, support tightly chucking plate 102, can realize fixing lithium cell body 2 in the inside of mobile terminal shell 1, the side direction that receives mobile terminal shell 1 and location installation pole 101 supports, whole lithium cell body 2 installation is fixed the back and is stable, further guarantee inside positive plate 3, remain stable between negative plate 4 and the diaphragm main part 5.

The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a positive negative pole of high reliable type mobile terminal lithium cell and diaphragm structure which characterized in that includes:

the mobile terminal comprises a mobile terminal shell (1), wherein a battery accommodating cavity is formed in the mobile terminal shell (1);

the lithium battery comprises a lithium battery body (2), wherein the lithium battery body (2) is fixedly arranged in a battery accommodating cavity of a mobile terminal shell (1), the lithium battery body (2) comprises two groups of half-butt joint shells (200), and a diaphragm main body (5) is movably clamped between the two groups of half-butt joint shells (200);

two sets of the inside difference fixed mounting of half butt joint casing (200) has positive plate (3) and negative plate (4), the structure and the fixed mode of positive plate (3) and negative plate (4) are the same, and two sets of fixedly connected with butt joint cover (202) between half butt joint casing (200), two sets of butt joint cover (202) four corners department passes through bolt fixed connection.

2. The structure of the high-reliability mobile terminal lithium battery anode, cathode and separator as claimed in claim 1, wherein: the battery of mobile terminal shell (1) holds chamber bottom wall four corners fixedly connected with location installation pole (101), the bottom fixedly connected with of lithium cell body (2) cup joints locating piece (201).

3. The structure of the high-reliability type mobile terminal lithium battery anode, cathode and diaphragm as claimed in claim 2, wherein: the sleeve joint positioning block (201) is movably sleeved on the positioning installation rod (101), the clamping plate (102) is sleeved on the positioning installation rod (101), and a nut sleeve is connected to the positioning installation rod (101) in a threaded mode.

4. The structure of the high-reliability mobile terminal lithium battery anode, cathode and separator as claimed in claim 1, wherein: the outer side of the diaphragm main body (5) is fixedly connected with a sealing frame (6), the side wall of the butt joint cover (202) is provided with clamping grooves (2021) corresponding to the sealing frame (6), and the sealing frame (6) is movably clamped in the clamping grooves (2021) of the two groups of butt joint covers (202).

5. The structure of the high-reliability mobile terminal lithium battery anode, cathode and separator as claimed in claim 4, wherein: two sets of first rubber seal grooves (2022) have been seted up on the inner wall of chucking groove (2021), two sets of second rubber seal groove (601) have been seted up on the lateral wall of seal frame (6), and two sets of first rubber seal groove (2022) and two sets of movable joint is equipped with first sealing washer (7) and second sealing washer (8) respectively between second rubber seal groove (601).

6. The structure of the high-reliability mobile terminal lithium battery anode, cathode and separator as claimed in claim 1, wherein: the bottom fixedly connected with screens board (9) of negative plate (4), fixedly connected with mounting base (203) on the inner chamber diapire of half butt joint casing (200), screens board (9) joint is in the recess of mounting base (203) and through the bolt fastening.