CN213071195U

CN213071195U - Sheet type lithium ion battery

Info

Publication number: CN213071195U
Application number: CN202021574982.2U
Authority: CN
Inventors: 田仕力
Original assignee: Dongguan Diyabao New Energy Co ltd
Current assignee: Dongguan Diyabao New Energy Co ltd
Priority date: 2020-08-03
Filing date: 2020-08-03
Publication date: 2021-04-27
Anticipated expiration: 2030-08-03

Abstract

The utility model discloses a sheet type lithium ion battery, which comprises an outer shell, the inside of shell is provided with electric core, it has the encapsulated layer to fill between electric core and the shell inner wall, the top symmetry of electric core is provided with the electric property connecting rod. The utility model discloses a dead lever that sets up, make encapsulation lid cover at the top of shell, make the electric property connecting rod run through the inside of open slot, make encapsulation lid cover the inside that the locating lever got into the constant head tank simultaneously, location structure through locating lever and constant head tank constitution, make the fixed rod groove just align with the fixed slot, later rotate the transfer line, make the transfer line drive second gear revolve, through the meshing structure that first gear and second gear constitute, make the transfer line can drive the both sides lead screw and rotate, the both sides lead screw drives the dead lever simultaneously and removes, make the dead lever get into the inside of fixed slot, block structure through dead lever and fixed slot constitution, be convenient for make encapsulation lid and shell fixed connection.

Description

Sheet type lithium ion battery

Technical Field

The utility model relates to a lithium ion battery technical field specifically is a piece formula lithium ion battery.

Background

The lithium ion battery is a secondary battery, which mainly depends on the movement of lithium ions between a positive electrode and a negative electrode to work, in the process of charging and discharging, Li + is inserted and extracted back and forth between the two electrodes, during charging, Li + is extracted from the positive electrode and inserted into the negative electrode through an electrolyte, the negative electrode is in a lithium-rich state, and during discharging, the lithium ion battery is opposite, and when a small-volt electrical appliance element is powered, a sheet type lithium ion battery is required to be used for power supply.

Although the types and the number of the conventional chip lithium ion batteries are very large, the conventional chip lithium ion batteries still have certain problems and bring certain inconvenience to the use of the chip lithium ion batteries.

When the existing chip lithium ion battery is used, the packaging cover and the shell are fixedly connected through gluing mostly, but the battery can generate heat during charging and discharging, so that the packaging cover is easy to degum, and the packaging cover and the shell are inconvenient to be fixedly connected.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a piece formula lithium ion battery has solved current piece formula lithium ion battery and when using, has mostly glued and has made encapsulation lid and shell fixed connection, but the battery can produce the heat when charge-discharge, makes the encapsulation lid come unstuck easily, and the inconvenient problem of carrying out fixed connection to encapsulation lid and shell.

In order to achieve the above object, the utility model provides a following technical scheme: a chip lithium ion battery comprises a shell, wherein a battery cell is arranged in the shell, an encapsulation layer is filled between the battery cell and the inner wall of the shell, an electric connection rod is symmetrically arranged at the top of the battery cell, wherein,

the top of the shell is covered with a packaging cover, an open slot penetrates through the packaging cover at a position corresponding to the electric connecting rod, positioning slots are symmetrically formed in the top of the shell, positioning rods are fixed at the bottoms of the packaging cover corresponding to the positioning slots, fixing rod slots are formed in two sides, close to the bottom, of the packaging cover, and fixing slots are formed in the inner side, corresponding to the fixing rod slots, of the shell;

the utility model discloses a lead screw, including casing, fixed rod groove, lead screw, first gear, second gear, first gear, second gear, the inside in fixed rod groove is provided with the dead lever, the lead screw groove has been seted up to the dead lever one side of keeping away from the casing, the inside threaded connection in lead screw groove has the lead screw, the transmission groove has been seted up at the middle part of encapsulation lid, the lead screw is located the one end of transmission inslot and is fixed with first gear, the middle part rotation that the encapsulation lid is close to the transmission groove is connected with.

Preferably, the two sides of the electric connecting rod, which are close to the top, are symmetrically provided with bump grooves, and bumps are fixed inside the bump grooves.

Preferably, the bumps are arc-shaped elastic pieces, and the maximum vertical distance between the bumps is larger than the outer diameter of the electrical connecting rod.

Preferably, the fixing rod is in a rectangular column shape, and the fixing rod and the fixing groove form a clamping structure.

Preferably, the first gear is symmetrically distributed about the second gear, and the first gear and the second gear form a meshing structure.

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

1. the utility model discloses a dead lever that sets up, make encapsulation lid cover at the top of shell, make the electric property connecting rod run through the inside of open slot, make encapsulation lid cover the inside that the locating lever got into the constant head tank simultaneously, location structure through locating lever and constant head tank constitution, make the fixed rod groove just align with the fixed slot, later rotate the transfer line, make the transfer line drive second gear revolve, through the meshing structure that first gear and second gear constitute, make the transfer line can drive the both sides lead screw and rotate, the both sides lead screw drives the dead lever simultaneously and removes, make the dead lever get into the inside of fixed slot, block structure through dead lever and fixed slot constitution, be convenient for make encapsulation lid and shell fixed connection.

2. The utility model discloses a lug that sets up, when lithium ion battery carried out electric connection through electric connecting rod and electrical components, lithium ion battery drove in electric connecting rod inserted electrical components's the electric connection groove, and when electric connecting rod inserted in the electric connection groove, lug compression deformation made the lug support electric connection groove inner wall, made electric connecting rod can with electric connection groove inner wall in close contact with through the lug, avoided lithium ion battery and electrical components to take place to open circuit because of dimensional tolerance.

Drawings

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

FIG. 2 is a schematic side view of the present invention;

fig. 3 is a schematic view of a part of an enlarged structure at a in fig. 2 according to the present invention.

In the figure: 1. a housing; 2. an electric core; 3. a packaging layer; 4. an electrical connection rod; 401. a bump groove; 402. A bump; 5. a package cover; 6. an open slot; 7. positioning a groove; 8. positioning a rod; 9. a fixed rod slot; 10. Fixing grooves; 11. fixing the rod; 12. a screw rod groove; 13. a screw rod; 14. a transmission groove; 15. a first gear; 16. a transmission rod; 17. a second gear.

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 to 3, the present invention provides a technical solution: a chip lithium ion battery comprises a shell 1, a cell 2, a packaging layer 3, an electrical connecting rod 4, a packaging cover 5, an open slot 6, a positioning slot 7, a positioning rod 8, a fixing rod slot 9, a fixing slot 10, a fixing rod 11, a screw rod slot 12, a screw rod 13, a transmission slot 14, a first gear 15, a transmission rod 16 and a second gear 17, wherein the cell 2 is arranged inside the shell 1, the packaging layer 3 is filled between the cell 2 and the inner wall of the shell 1, the electrical connecting rod 4 is symmetrically arranged at the top of the cell 2, the electrical connecting rod 4 is symmetrically provided with convex block slots 401 near the two sides of the top, convex blocks 402 are fixed inside the convex block slots 401, the convex blocks 402 are arc-shaped elastic pieces, the maximum vertical distance between the convex blocks 402 is greater than the outer diameter of the electrical connecting rod 4, and when the lithium ion battery is electrically connected with an electrical, the lithium ion battery drives the electrical connection rod 4 to be inserted into the electrical connection groove of the electrical component, when the electrical connection rod 4 is inserted into the electrical connection groove, the bump 402 is compressed and deformed, the bump 402 is abutted against the inner wall of the electrical connection groove, the electrical connection rod 4 can be tightly contacted with the inner wall of the electrical connection groove through the bump 402, thereby avoiding the lithium ion battery and the electrical component from being broken due to dimensional tolerance,

a packaging cover 5 is covered on the top of the shell 1, an open slot 6 penetrates through the packaging cover 5 at a position corresponding to the electric connecting rod 4, positioning slots 7 are symmetrically formed in the top of the shell 1, positioning rods 8 are fixed at the bottoms of the packaging cover 5 corresponding to the positioning slots 7, fixing rod slots 9 are formed in two sides, close to the bottom, of the packaging cover 5, and fixing slots 10 are formed in the inner side, corresponding to the fixing rod slots 9, of the shell 1;

the fixing rod groove 9 is internally provided with a fixing rod 11, the fixing rod 11 is rectangular column-shaped, the fixing rod 11 and the fixing groove 10 form a clamping structure, when a screw rod 13 is rotated, the screw rod 13 and the fixing rod 11 are relatively moved, so that the screw rod 13 drives the fixing rod 11 to move, the fixing rod 11 enters the fixing groove 10, a packaging cover 5 is fixedly connected with the shell 1 through the clamping structure formed by the fixing rod 11 and the fixing groove 10, the lithium ion battery is packaged, one side of the fixing rod 11, which is far away from the shell 1, is provided with a screw rod groove 12, the screw rod 13 is connected with the internal thread of the screw rod groove 12, the middle part of the packaging cover 5 is provided with a transmission groove 14, one end of the screw rod 13, which is positioned in the transmission groove 14, is fixedly provided with a first gear 15, the first gear 15 is symmetrically distributed relative to a second gear 17, and the first gear 15 and the, the transmission rod 16 is rotated to enable the transmission rod 16 to drive the second gear 17 to rotate, the transmission rod 16 can drive the screw rods 13 on the two sides to rotate through a meshing structure formed by the first gear 15 and the second gear 17, the lines of the external threads of the screw rods 13 on the two sides are opposite, the screw rods 13 can simultaneously drive the fixing rods 11 on the two sides to move in opposite directions, the transmission rod 16 is rotatably connected to the middle part, close to the transmission groove 14, of the packaging cover 5, and the second gear 17 is fixed on one side, close to the first gear 15, of the transmission rod 16.

The working principle is as follows: when the chip lithium ion battery is used, firstly, the battery core 2 is placed in the shell 1, then the battery core 2 is fixed in the shell 1 through the packaging layer 3, then the packaging cover 5 is covered at the top of the shell 1, the electric connecting rod 4 penetrates through the inside of the open slot 6, meanwhile, the packaging cover 5 drives the positioning rod 8 to enter the inside of the positioning slot 7, the positioning structure formed by the positioning rod 8 and the positioning slot 7 enables the fixing rod slot 9 to be exactly aligned with the fixed slot 10, then the transmission rod 16 is rotated, the transmission rod 16 drives the second gear 17 to rotate, through the meshing structure formed by the first gear 15 and the second gear 17, the transmission rod 16 can drive the screw rods 13 at two sides to rotate, the screw rods 13 at two sides simultaneously drive the fixing rod 11 to move, the fixing rod 11 enters the inside of the fixed slot 10, through the clamping structure formed by the fixing rod 11 and the fixed, be convenient for make encapsulation lid 5 and shell 1 fixed connection, when lithium ion battery carried out electric connection through electric connecting rod 4 and electrical components, lithium ion battery drove in electric connecting rod 4 inserted electrical components's the electric connection groove, when electric connecting rod 4 inserted in the electric connection groove, lug 402 compressive deformation made lug 402 support electric connection groove inner wall, made electric connecting rod 4 can with electric connection groove inner wall in close contact with through lug 402, avoided lithium ion battery and electrical components to take place to open circuit because of dimensional tolerance.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A chip lithium ion battery, includes shell (1), its characterized in that: the battery cell (2) is arranged in the shell (1), the packaging layer (3) is filled between the battery cell (2) and the inner wall of the shell (1), the top of the battery cell (2) is symmetrically provided with electric connecting rods (4), wherein,

the top of the shell (1) is covered with a packaging cover (5), an open slot (6) penetrates through the position, corresponding to the electric connecting rod (4), of the packaging cover (5), positioning slots (7) are symmetrically formed in the top of the shell (1), positioning rods (8) are fixed at the bottoms of the packaging cover (5) corresponding to the positioning slots (7), fixing rod slots (9) are formed in two sides, close to the bottom, of the packaging cover (5), and fixing slots (10) are formed in the inner side, corresponding to the fixing rod slots (9), of the shell (1);

the inside in fixed rod groove (9) is provided with dead lever (11), screw rod groove (12) have been seted up to one side that shell (1) was kept away from in dead lever (11), the internal thread in screw rod groove (12) is connected with lead screw (13), transmission groove (14) have been seted up at the middle part of encapsulation lid (5), the one end that lead screw (13) are located transmission groove (14) is fixed with first gear (15), the middle part rotation that encapsulation lid (5) are close to transmission groove (14) is connected with transfer line (16), one side that transfer line (16) are close to first gear (15) is fixed with second gear (17).

2. The lithium ion battery cell of claim 1, wherein: the electric connecting rod (4) comprises a convex block groove (401) and a convex block (402), the convex block groove (401) is symmetrically formed in the electric connecting rod (4) close to the two sides of the top of the electric connecting rod, and the convex block (402) is fixed inside the convex block groove (401).

3. The lithium ion battery cell of claim 2, wherein: the convex blocks (402) are arc-shaped elastic sheets, and the maximum vertical distance between the convex blocks (402) is larger than the outer diameter of the electric connecting rod (4).

4. The lithium ion battery cell of claim 1, wherein: the fixing rod (11) is in a rectangular column shape, and the fixing rod (11) and the fixing groove (10) form a clamping structure.

5. The lithium ion battery cell of claim 1, wherein: the first gears (15) are symmetrically distributed relative to the second gear (17), and the first gears (15) and the second gear (17) form a meshing structure.