CN218997008U

CN218997008U - Battery output end switching structure and soft package battery

Info

Publication number: CN218997008U
Application number: CN202222522453.3U
Authority: CN
Inventors: 王建; 陈君文; 阮保红; 邓翰林; 梁成广
Original assignee: Yichang Lijia Technology Co ltd
Current assignee: Yichang Lijia Technology Co ltd
Priority date: 2022-09-22
Filing date: 2022-09-22
Publication date: 2023-05-09
Anticipated expiration: 2032-09-22

Abstract

The utility model discloses a battery output end switching structure, which comprises a pole, wherein the pole is connected with a pole lug of a battery; therefore, heat is prevented from being conducted into the battery through the lugs during battery manufacturing and welding of the battery and the circuit board, the sealing performance of the battery is damaged, and the use safety of the battery is improved; other tab materials are not connected due to the positive and negative electrode material properties and tab material properties, so that the cost is reduced in the process of reducing the process; the battery pack is convenient and quick to connect with an electric appliance and is combined with a battery pack; the battery package is simplified, and the package safety and the transportation safety are improved; and the size and quality of the electrode lugs are improved, and the yield and the production efficiency are improved.

Description

Battery output end switching structure and soft package battery

Technical Field

The present utility model relates to the field of batteries, and in particular, to a battery output terminal switching structure and a soft package battery.

Background

In recent years, electronic products are rapidly developed, the products are diversified, the application field is wider and wider, a plurality of batteries are used by customers conveniently, high requirements are put forward on the connection mode of the batteries and the board end, the portable trend is being developed, and in order to meet the market demand, the development of new soft-package batteries capable of being rapidly assembled and disassembled is imperative, and the purpose can be realized by replacing the lugs of the soft-package batteries by metal contacts.

Most of the soft-package batteries used in the prior industry directly extend out of the positive electrode lug and the negative electrode lug, the positive electrode lug and the negative electrode lug are mainly metal electrode lugs, and the metal electrode lugs are soft in material feet, easy to denature, short-circuit and not easy to weld, so that great difficulty and potential safety hazard are caused for production, circulation and transportation safety. Meanwhile, the soldering or laser welding is adopted to be connected with the PCB, and a lot of defects are generated in the welding process, such as heat possibly enters the battery through heat conduction, damage is caused to the battery body, tin beads are not easy to clean, local short circuit can be caused after packaging, and new working hours, labor cost and the like can be caused in the welding process.

Disclosure of Invention

Therefore, the embodiment of the utility model provides a battery output end switching structure and a soft package battery, which can avoid heat conduction in the battery through the electrode lugs during battery manufacturing and welding of the battery and a circuit board, damage the sealing performance of the battery and improve the use safety of the battery.

In order to achieve the above purpose, the technical scheme of the utility model is realized as follows:

in a first aspect, an embodiment of the present utility model provides a battery output terminal switching structure, including a pole, where the pole is connected with a tab of a battery.

Preferably, the pole is provided with a groove, and the pole is in interference fit with the pole lug of the battery through the groove.

Preferably, the battery further comprises a first insert, the first insert is provided with a square hole, the lug of the battery penetrates through the square hole and bends, and the pole post is in interference fit with the first insert through the groove and is connected with the lug.

Preferably, the battery also comprises a second insert, wherein the first insert is provided with a square hole, and the lug of the battery penetrates through the square hole and is bent; the second insert is connected with the first insert, the second insert is provided with a mounting hole, and the pole is installed through the mounting hole and connected with the second insert and the pole lug.

Preferably, the pole is installed through the installation hole and is in interference fit with the second insert and the pole lug.

Preferably, the second insert is provided with a clamping groove, and the first insert is in snap connection with the second insert through the clamping groove.

Preferably, the tab passes through the square hole and is bent, and extends to be attached to the first insert in an antiparallel manner to the output end.

Preferably, the diameter of the mounting hole is 2-5mm.

Preferably, the length of the second insert is greater than the length of the first insert.

In a second aspect, an embodiment of the present utility model provides a flexible battery, including a battery and the above-mentioned battery output terminal switching structure connected to a tab of the battery.

Preferably, the battery comprises a laminated battery or a wound battery.

The battery output end switching structure and the soft package battery provided by the embodiment of the utility model comprise a pole, wherein the pole is connected with a pole lug of the battery; therefore, heat is prevented from being conducted into the battery through the lugs during battery manufacturing and welding of the battery and the circuit board, the sealing performance of the battery is damaged, and the use safety of the battery is improved; other tab materials are not connected due to the positive and negative electrode material properties and tab material properties, so that the cost is reduced in the process of reducing the process; the battery pack is convenient and quick to connect with an electric appliance and is combined with a battery pack; the battery package is simplified, and the package safety and the transportation safety are improved; and the size and quality of the electrode lugs are improved, and the yield and the production efficiency are improved.

Drawings

Fig. 1 is a schematic structural diagram of a battery output terminal switching structure according to an embodiment of the present utility model;

fig. 2 is a schematic structural diagram of a battery output terminal switching structure according to another embodiment of the present utility model;

fig. 3 is a schematic structural diagram of a battery output terminal switching structure according to another embodiment of the present utility model;

FIG. 4 is a schematic view of a first insert according to an embodiment of the present utility model;

FIG. 5 is a schematic view of a second insert provided in an embodiment of the present utility model;

fig. 6 is a schematic diagram illustrating an assembly of a battery output terminal switching structure and a battery according to an embodiment of the utility model.

In the figure, a battery 1, a first insert 2, a second insert 3, a pole 4, a square hole 5, a mounting hole 6, and a tab 7.

Detailed Description

For the purpose of better illustrating the embodiments, certain elements of the drawings may be omitted, enlarged or reduced and do not represent the actual product dimensions; it will be appreciated by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted. It will be understood by those of ordinary skill in the art that the terms described above are in the specific sense of the present utility model. The technical scheme of the utility model is further described below with reference to the accompanying drawings and examples.

Referring to fig. 1, an embodiment of the present utility model provides a battery output terminal switching structure, which includes a pole, and the pole is connected with a tab of a battery. Therefore, heat is prevented from being conducted into the battery through the lugs during battery manufacturing and welding of the battery and the circuit board, the sealing performance of the battery is damaged, and the use safety of the battery is improved; other tab materials are not connected due to the positive and negative electrode material properties and tab material properties, so that the cost is reduced in the process of reducing the process; the battery pack is convenient and quick to connect with an electric appliance and is combined with a battery pack; the battery package is simplified, and the package safety and the transportation safety are improved; and the size and quality of the electrode lugs are improved, and the yield and the production efficiency are improved.

In one embodiment, the pole is provided with a groove, and the pole is in interference fit with the lug of the battery through the groove.

Here, assuming that the size of the tab is Amm and the internal height of the groove of the tab is Bmm, a may be set to be slightly greater than B, and interference fit of the groove with the tab of the battery is achieved through certain deformation of the groove. Therefore, the soft lug is changed into the hard pole, heat conduction in the battery can be avoided through the lug when the battery is manufactured and the battery is welded with the circuit board, the sealing performance of the battery is damaged, and the use safety of the battery is improved.

In actual operation, the connection between the pole and the tab may be achieved by a connection method such as electric welding, laser welding, or metal connection.

In an embodiment, referring to fig. 2, the battery further comprises a first insert, the first insert is provided with a square hole, the tab of the battery passes through the square hole and bends, and the pole is in interference fit with the first insert through the groove and is connected with the tab.

Here, assuming that the size of the first insert is Cmm, the internal height of the groove of the pole is Dmm, C may be set to be slightly greater than D, and through a certain deformation of the groove, an interference fit of the groove and the first insert is achieved, while the pole and the tab are connected together. Therefore, the soft lug is changed into the hard pole, heat conduction in the battery can be avoided through the lug when the battery is manufactured and the battery is welded with the circuit board, the sealing performance of the battery is damaged, and the use safety of the battery is improved.

In an embodiment, referring to fig. 3 to 6, the battery further comprises a second insert, the first insert is provided with a square hole, and the tab of the battery passes through the square hole and is bent; the second insert is connected with the first insert, the second insert is provided with a mounting hole, and the pole is installed through the mounting hole and connected with the second insert and the pole lug.

Therefore, heat is prevented from being conducted into the battery through the lugs during battery manufacturing and welding of the battery and the circuit board, the sealing performance of the battery is damaged, and the use safety of the battery is improved; other tab materials are not connected due to the positive and negative electrode material properties and tab material properties, so that the cost is reduced in the process of reducing the process; the battery pack is convenient and quick to connect with an electric appliance and is combined with a battery pack; the battery package is simplified, and the package safety and the transportation safety are improved; and the size and quality of the electrode lugs are improved, and the yield and the production efficiency are improved.

In one embodiment, referring to fig. 5, the pole is installed through the mounting hole and is in interference fit with the second insert and the pole lug.

Here, the terminal post is installed through the mounting hole that the second inserted block reserved, forms interference fit between terminal post and second inserted block and the battery tab, makes the terminal post unable to drop and with the tab good switch on. Specifically, the pole is used as a metal contact, the metal contact replaces a soft package battery pole lug, short circuit risks in the production and transportation processes can be avoided, more possibilities are provided for automatic production, and a guest can realize the installation and replacement of a battery in various modes such as a battery seat, magnetic attraction and the like when using.

In an embodiment, the second insert is provided with a clamping groove, and the first insert is in snap connection with the second insert through the clamping groove.

Here, the both sides of second insert are provided with two mounting holes, can be provided with the trip that a punching press down extends of moulding plastics in the mounting hole middle part, realize the buckle connection with first insert, also can directly form the trip through 3D printing in the inside of second insert and realize the buckle connection with first insert. Therefore, the first insert and the second insert can be tightly fastened, and in addition, the clamping groove is connected with the buckle, so that the connection strength is ensured, and the assembly is convenient.

In an embodiment, the tab passes through the square hole and bends to extend to be attached to the first insert in anti-parallel with the output end.

Here, the tab is folded after passing through the square hole of the first insert, and the folding direction is reverse folding of the extending direction, and the tab is parallel to the direction before passing through the square hole and the second direction after passing out of the square hole, so that the tab is attached to the first insert to ensure that the battery cannot fall off from the assembly after the combination is completed, specifically, the tab cannot fall off from the assembly due to thrust when the tab is assembled, and here, the pushing direction of the tab is consistent with the tightening direction of the tab, so that the tab is more clamped and tighter.

In one embodiment, the mounting holes have a diameter of 2-5mm.

Here, taking the soft package battery of the battery model CP602448 as an example in this embodiment, the center distance of the two mounting holes is 5-15mm, the length of the second insert is 15-50mm, the width is 4-10mm, the thickness is 2.5-8mm, the width of the tab is 2-4mm, and here, the width of the square hole is larger than the width of the tab, so that the tab can pass through the square hole smoothly and fold.

In one embodiment, the second insert has a length that is greater than the length of the first insert.

Here, the snap-in connection of the first insert and the second insert is achieved and the first insert is covered. It is ensured that the first insert is not exposed to the outside after assembly, and if the first insert is exposed to the outside, the assembly may be damaged by applying an external force to the exposed position.

Here, compared with the defects of incapability of quick disassembly, need of tin plating for the tab, need of switching, high tab position degree requirement and the like of the conventional battery with the tab, the soft package battery of the embodiment has the advantages that the quick disassembly is realized, the tab can be made of a single material, and the tab position requirement is low.

Preferably, the battery comprises a laminated battery or a wound battery.

In summary, compared with the prior art, the embodiment of the utility model provides the battery output end switching structure and the soft package battery, which can avoid heat conduction in the battery through the tab during battery manufacturing and welding of the battery and the circuit board, damage the sealing performance of the battery and improve the use safety of the battery. In particular, the method comprises the steps of,

1. the heat conduction in the battery through the lugs during the battery manufacturing and the welding of the battery and the circuit board can be avoided, the sealing performance of the battery is damaged, and the use safety of the battery is improved;

2. other tab materials are not grafted due to the positive and negative electrode material properties and the tab material properties, so that the cost is reduced in the process of the process.

3. The battery pack is convenient and quick to connect with an electric appliance and is combined with a battery pack;

4. the battery package is simplified, and the package safety and the transportation safety are improved;

5. and the size and quality of the electrode lugs are improved, and the yield and the production efficiency are improved.

The foregoing description is only of the preferred embodiments of the present utility model, and is not intended to limit the scope of the present utility model. Any modification, equivalent replacement, improvement, etc. made within the spirit and scope of the present utility model are included in the protection scope of the present utility model.

Claims

1. The battery output end switching structure is characterized by comprising a pole, wherein the pole is connected with a pole lug of a battery.

2. The battery output terminal adapter structure according to claim 1, wherein the pole is provided with a groove, and the pole is in interference fit with a tab of a battery through the groove.

3. The battery output terminal switching structure according to claim 2, further comprising a first insert, wherein the first insert is provided with a square hole, a tab of the battery passes through the square hole and bends, and the tab is in interference fit with the first insert through the groove and is connected with the tab.

4. The battery output terminal switching structure according to claim 3, further comprising a second insert, wherein the first insert is provided with a square hole, a tab of the battery passes through the square hole and bends, the second insert is connected with the first insert, the second insert is provided with a mounting hole, and the tab is installed through the mounting hole and connected with the second insert and the tab.

5. The battery output terminal adapter structure according to claim 4, wherein the pole is installed through the installation hole and is in interference fit with the second insert and the pole lug.

6. The battery output terminal switching structure according to claim 4, wherein the second insert is provided with a clamping groove, and the first insert is in snap-fit connection with the second insert through the clamping groove.

7. The battery output terminal switching structure according to claim 3, wherein the tab passes through the square hole and is bent to extend to be attached to the first insert in anti-parallel with the output terminal.

8. The battery output port adapter structure of claim 4, wherein the second insert has a length that is greater than a length of the first insert.

9. A flexible battery comprising a battery and a battery output terminal switching structure according to any one of claims 1-8 connected to a tab of the battery.

10. The pouch cell of claim 9, comprising a laminate cell or a wound cell.