CN217158562U

CN217158562U - Lug of double-conductor lithium ion power battery

Info

Publication number: CN217158562U
Application number: CN202123390254.3U
Authority: CN
Inventors: 曾萍
Original assignee: Wuxi Baishijie Metal Product Technology Co ltd
Current assignee: Wuxi Baishijie Metal Product Technology Co ltd
Priority date: 2021-12-29
Filing date: 2021-12-29
Publication date: 2022-08-09
Anticipated expiration: 2031-12-29

Abstract

The application provides a two-conductor lithium ion power battery tab, belongs to battery tab field. The lug of the double-conductor lithium ion power battery comprises a film sleeve and a dismounting assembly, wherein one end of the film sleeve is provided with an insertion interface, one end of the film sleeve and two sides of the inserting port are both provided with through ports, the dismounting component comprises a metal sheet, a cover plate and an elastic piece, the metal sheet can be inserted into the insertion port, the first insertion plate is provided with an insertion port, the elastic part is arranged in the film sleeve and positioned on one side of the insertion port, one end of the elastic part penetrates into the through opening in a sliding mode and is connected with a second inserting plate, one end of the second inserting plate is provided with a second inclined surface matched with the first inclined surface, the elastic component other end is provided with and slides and runs through to the pull rod in the film sleeve outside, inlay the mouth and can supply the second picture peg tip is pegged graft, and this two conductor lithium ion power battery utmost point ear is convenient for carry out the dismouting to the sheetmetal.

Description

Lug of double-conductor lithium ion power battery

Technical Field

The application relates to the field of battery tabs, in particular to a two-conductor lithium ion power battery tab.

Background

Lithium batteries are a type of battery using a nonaqueous electrolyte solution using lithium metal or a lithium alloy as a positive/negative electrode material, and can be roughly classified into two types: lithium metal batteries and lithium ion batteries. Lithium ion batteries do not contain metallic lithium and can be charged, lithium metal batteries, which are the fifth generation products of rechargeable batteries, are produced in 1996, the safety, the specific capacity, the self-discharge rate and the cost performance of lithium metal batteries are all superior to those of lithium ion batteries, and tabs are raw materials of lithium ion polymer battery products, such as mobile phone batteries, Bluetooth batteries, notebook batteries and the like which are used in our lives.

The conventional lug of the double-conductor lithium ion power battery is usually internally provided with a metal sheet, and the metal sheet is troublesome in dismounting and mounting processes. In addition, the battery tab usually consists of two films and a metal sheet, and the metal sheet is located between the two films, but in this way, the tightness between the metal sheet and the films is poor, and certain limitations are provided.

SUMMERY OF THE UTILITY MODEL

In order to make up for the above deficiencies, the present application provides a tab for a two-conductor lithium ion power battery, which aims to improve the above-mentioned problems.

The embodiment of the application provides a lug of a two-conductor lithium ion power battery, which comprises a film sleeve and a disassembly and assembly component, wherein one end of the film sleeve is provided with a splicing opening, one end of the film sleeve is positioned at both sides of the splicing opening and is provided with openings, the disassembly and assembly component comprises a metal sheet, an apron and an elastic piece, the metal sheet can be spliced at the splicing opening, one end of the metal sheet is provided with a conducting sheet, the apron is positioned at the outer side of the film sleeve, the apron is provided with a through opening for the conducting sheet to pass through, both ends of one side of the apron are provided with a first inserting plate, the first inserting plate is matched with the openings, one end of the first inserting plate is provided with a first inclined plane, the first inserting plate is provided with an embedding opening, the elastic piece is arranged inside the film sleeve and positioned at one side of the openings, one end of the elastic piece slides to penetrate through the inside of the openings and is connected with a second inserting plate, one end of the second plug board is provided with a second inclined plane matched with the first inclined plane, the other end of the elastic part is provided with a pull rod which penetrates to the outer side of the film sleeve in a sliding mode, and the end portion of the second plug board can be plugged in the embedding opening.

In the implementation process, when the metal sheet needs to be installed, the metal sheet is inserted into the insertion opening on the film sleeve, the conducting strip is positioned outside the insertion opening, the penetrating opening on the cover plate is aligned with the conducting strip and the cover plate is attached to one side of the film sleeve, the conducting strip penetrates through the penetrating opening so that the conducting strip can guide out the cell inside the lithium ion power battery, in the process of attaching the cover plate to the film sleeve, the first insertion plate enters the through opening, because the first inclined surface is arranged at one end of the first insertion plate, and the second inclined surface matched with the first inclined surface is arranged at one end of the second insertion plate, in the process that the first insertion plate continuously moves towards the through opening, the first inclined surface and the second inclined surface are matched with each other, after the first insertion plate contacts the second insertion plate, the first insertion plate transversely moves to drive the second insertion plate to vertically move, because one end of the elastic piece slides to penetrate into the through opening and is connected with the second insertion plate, so the vertical removal of second picture peg will drive the elastic component compression, after inlaying entry and second picture peg tip alignment on first picture peg, through the reaction force behind the elastic component compression, so that second picture peg tip is pegged graft inside inlaying the entry, thereby accomplish the fixed of apron position, so that protect the sheetmetal in inserting the interface, wherein film sleeve activity cup joints the setting in the sheetmetal, compare in the setting that the sheetmetal is located between two films, its sheetmetal leakproofness in the film sleeve is better.

In a specific embodiment, the elastic component includes mounting groove, diaphragm and spring, the mounting groove set up in inside the film sleeve, the diaphragm slide set up in inside the mounting groove, pull rod one end run through to inside the mounting groove and with the diaphragm links to each other, the spring movable sleeve is located the pull rod, spring one end with the diaphragm links to each other, the spring other end with the mounting groove inner wall links to each other.

In the implementation process, the first inserting plate moves transversely to drive the second inserting plate to move vertically, the transverse plate moves towards the direction far away from the through opening, the pull rod moves along with the transverse plate, the spring compresses, the end portion of the second inserting plate is inserted into the embedding opening, and if the connection state between the first inserting plate and the through opening needs to be removed, the pull rod is pulled to enable the end portion of the second inserting plate to be separated from the embedding opening, and meanwhile the cover plate is pulled to enable the first inserting plate to be separated from the through opening, so that the cover plate can be taken down.

In a specific implementation scheme, a sliding rod is fixed inside the mounting groove, and the transverse plate is sleeved on the sliding rod in a sliding manner.

In the implementation process, the transverse plate is sleeved on the slide rod in a sliding mode so that the transverse plate can vertically move in the installation groove.

In a specific implementation scheme, two slide bars are symmetrically arranged inside the mounting groove, and two ends of the transverse plate are respectively in sliding sleeve connection with the two symmetrical slide bars.

In the implementation process, the two ends of the transverse plate are respectively in sliding sleeved connection with the two symmetrical sliding rods, so that the stability of the transverse plate in the vertical sliding process is improved.

In a specific embodiment, a handle is arranged at one end of the pull rod away from the transverse plate.

In the above implementation, the handle is arranged so as to pull the pull rod.

In a specific embodiment, two through holes are symmetrically arranged on the cover plate, and the conducting strips are arranged corresponding to the through holes.

In above-mentioned realization process, two run-through openings correspond and have two conducting strips, through the setting of two conducting strips to the conducting strip is better exports the inside electric core of lithium cell, and the derivation process between conducting strip and the electric core is the inside prior art of most lithium cells, and specific operation mode is not repeated here much.

In a specific embodiment, the inner walls of the two through openings are provided with insulating rubber gaskets.

In the above implementation process, after the conducting strip penetrates through the through hole, the insulating rubber pad is located outside the conducting strip at the moment, and the electric quantity on the conducting strip is prevented from being conducted on the cover plate through the insulating property of the rubber pad.

In a specific embodiment, the cover plate cross-sectional shape is the same as the film sleeve cross-sectional shape.

In the above implementation process, the cover plate has the same cross-sectional shape as the film sleeve so that the cover plate is completely attached to the side of the film sleeve to better seal the side of the film sleeve.

In a specific embodiment, a handle is provided at an end of the cover plate remote from the film sleeve.

In the above implementation, the handle is provided to pull or push the cover plate.

In a specific embodiment, an anti-slip sleeve is fixedly sleeved outside the handle.

In the implementation process, the anti-slip sleeve is made of rubber materials so as to improve the anti-slip performance of the outer portion of the handle.

Drawings

In order to more clearly explain the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and that for those skilled in the art, other related drawings can be obtained from these drawings without inventive effort.

Fig. 1 is a schematic structural diagram of a lug of a two-conductor lithium ion power battery provided in an embodiment of the present application;

fig. 2 is a schematic structural diagram of a battery tab after a metal sheet is mounted according to an embodiment of the present disclosure;

FIG. 3 is a disassembled view of the cover plate and film sleeve provided in the present application;

fig. 4 is a schematic position diagram of a first board according to an embodiment of the present disclosure;

FIG. 5 is a top cross-sectional view of a film cartridge provided in an embodiment of the present application;

fig. 6 is an enlarged view of a portion a in fig. 5 according to an embodiment of the present disclosure.

In the figure: 100-a film cartridge; 110-a socket; 120-port; 200-a disassembly and assembly component; 210-a metal sheet; 211-conductive sheet; 220-a cover plate; 221-a first board; 2211-first inclined plane; 2212-insert port; 222-a through-hole; 2221-insulating rubber mat; 223-a handle; 2231-anti-slip cover; 230-an elastic member; 231-a second board; 2311-a second inclined plane; 232-a pull rod; 233-mounting groove; 2331-slide bar; 234-a transverse plate; 235-spring.

Detailed Description

The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application.

To make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments obtained by a person of ordinary skill in the art without any inventive work based on the embodiments in the present application are within the scope of protection of the present application.

Referring to fig. 1-6, the present application provides a dual-conductor lithium ion power battery tab, comprising a film sleeve 100 and a detachable assembly 200, wherein one end of the film sleeve 100 is provided with a plug 110, one end of the film sleeve 100 and both sides of the plug 110 are provided with through holes 120, the detachable assembly 200 comprises a metal sheet 210, a cover plate 220 and an elastic member 230, the metal sheet 210 is insertable into the plug 110, one end of the metal sheet 210 is provided with a conductive sheet 211, the cover plate 220 is located outside the film sleeve 100, the cover plate 220 is provided with a through hole 222 for the conductive sheet 211 to pass through, both ends of one side of the cover plate 220 are provided with a first insert plate 221, the first insert plate 221 is adapted to the through holes 120, one end of the first insert plate 221 is provided with a first inclined plane 2211, the first insert hole 2212 is formed on the first insert plate 221, the elastic member 230 is disposed inside the film sleeve 100 and is located at one side of the through hole 120, one end of the elastic member 230 slidably penetrates into the through hole 120 and is connected with a second insert plate 231, one end of the second board 231 is provided with a second inclined surface 2311 matched with the first inclined surface 2211, the other end of the elastic member 230 is provided with a pull rod 232 which penetrates through the film sleeve 100 in a sliding manner, and the insertion opening 2212 can be used for inserting the end part of the second board 231.

In some specific embodiments, the elastic member 230 includes a mounting groove 233, a horizontal plate 234 and a spring 235, the mounting groove 233 is disposed inside the film sleeve 100, the horizontal plate 234 is slidably disposed inside the mounting groove 233, one end of the pull rod 232 extends into the mounting groove 233 and is connected to the horizontal plate 234, the spring 235 is movably sleeved on the pull rod 232, one end of the spring 235 is connected to the horizontal plate 234, the other end of the spring 235 is connected to the inner wall of the mounting groove 233, during the first insertion plate 221 moves laterally to drive the second insertion plate 231 to move vertically, the horizontal plate 234 moves away from the through opening 120, the pull rod 232 moves therewith, the spring 235 compresses, when the end of the second insertion plate 231 is inserted into the insertion opening 2212, if the connection between the first insertion plate 221 and the through opening 120 needs to be released, the pull rod 232 is pulled to release the end of the second insertion plate 231 from the insertion opening 2212, and simultaneously the cover plate 220 is pulled to release the first insertion plate 221 from the through opening 120, so that the cover plate 220 can be removed.

In some specific embodiments, a slide rod 2331 is fixed inside the mounting groove 233, and the horizontal plate 234 is slidably sleeved on the slide rod 2331 through the arrangement of the horizontal plate 234, so that the horizontal plate 234 vertically moves in the mounting groove 233.

In some specific embodiments, two slide bars 2331 are symmetrically disposed inside the mounting groove 233, two ends of the horizontal plate 234 are slidably sleeved with two symmetrical slide bars 2331, respectively, and the stability of the horizontal plate 234 in the vertical sliding process is improved by disposing two ends of the horizontal plate 234 to be slidably sleeved with two symmetrical slide bars 2331, respectively.

In some embodiments, the end of the pull rod 232 remote from the cross plate 234 is provided with a pull handle that is configured to pull the pull rod 232.

In some specific embodiments, the through hole 222 is symmetrically provided with two on the cover plate 220, the conductive sheets 211 are correspondingly provided with the through hole 222, the two through holes 222 are correspondingly provided with two conductive sheets 211, and the two through holes 211 are provided with the two conductive sheets 211, so that the conductive sheets 211 can better lead out the electric core inside the lithium battery, and the lead-out process between the conductive sheets 211 and the electric core is the prior art inside most lithium batteries, and the specific operation mode is not repeated herein.

In some specific embodiments, the insulating rubber pads 2221 are disposed on the inner walls of the two through holes 222, and after the conductive sheet 211 passes through the through holes 222, the insulating rubber pads 2221 are located on the outer side of the conductive sheet 211, so as to prevent the electric quantity on the conductive sheet 211 from being conducted to the cover plate 220 through the insulation property of the rubber pads.

In some embodiments, the cover plate 220 has the same cross-sectional shape as the film sleeve 100, and the cover plate 220 has the same cross-sectional shape as the film sleeve 100, so that the cover plate 220 completely fits the side of the film sleeve 100 to better seal the sides of the film sleeve 100.

In some embodiments, the end of the cover plate 220 remote from the film sleeve 100 is provided with a handle 223, the handle 223 being configured to pull or push the cover plate 220.

In some embodiments, an anti-slip sleeve 2231 is fixedly attached to the outside of the handle 223, and the anti-slip sleeve 2231 is made of rubber material, so as to improve the anti-slip property of the outside of the handle 223.

The working principle of the lug of the double-conductor lithium ion power battery is as follows: when the metal sheet 210 needs to be installed, the metal sheet 210 is inserted into the insertion opening 110 of the film sleeve 100, at this time, the conductive sheet 211 is located outside the insertion opening 110, the through opening 222 of the cover plate 220 is aligned with the conductive sheet 211, and the cover plate 220 is attached to one side of the film sleeve 100, at this time, the conductive sheet 211 penetrates through the through opening 222, so that the conductive sheet 211 guides out the cell inside the lithium ion power battery, in the process that the cover plate 220 is attached to the film sleeve 100, the first insertion plate 221 enters the through opening 120, because the first inclined surface 2211 is arranged at one end of the first insertion plate 221, the second inclined surface 2311 matched with the first inclined surface 2211 is arranged at one end of the second insertion plate 231, in the process that the first insertion plate 221 continues to move into the through opening 120, through the arrangement that the first inclined surface 2211 and the second inclined surface 2311 are matched with each other, when the first insertion plate 221 contacts the second insertion plate 231, the first insertion plate 221 moves transversely to drive the second insertion plate 231 to move vertically, because one end of the elastic member 230 penetrates through the inside of the through opening 120 in a sliding manner and is connected with the second board 231, the second board 231 moves vertically to drive the elastic member 230 to compress, and after the insertion opening 2212 on the first board 221 is aligned with the end of the second board 231, the end of the second board 231 is inserted into the insertion opening 2212 by the reaction force generated after the elastic member 230 compresses, so that the position of the cover plate 220 is fixed, and the metal sheet 210 in the insertion opening 110 is protected, wherein the film sleeve 100 is movably sleeved on the metal sheet 210, and compared with the arrangement that the metal sheet 210 is located between two films, the sealing performance of the metal sheet 210 in the film sleeve 100 is better.

It should be noted that the specific model specifications of the film sleeve 100, the metal sheet 210 and the conductive sheet 211 need to be determined by type selection according to the actual specification of the device, and the specific type selection calculation method adopts the prior art, so detailed description is omitted.

The power supply and the principle of the film sleeve 100, the metal plate 210 and the conductive sheet 211 will be apparent to those skilled in the art and will not be described in detail herein.

The above description is only an example of the present application and is not intended to limit the scope of the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A lug of a double-conductor lithium ion power battery is characterized by comprising

The film sleeve comprises a film sleeve (100), wherein one end of the film sleeve (100) is provided with a socket (110), and one end of the film sleeve (100) and two sides of the socket (110) are both provided with through holes (120);

dismouting subassembly (200), dismouting subassembly (200) include sheetmetal (210), apron (220) and elastic component (230), sheetmetal (210) can peg graft in interface (110), sheetmetal (210) one end is provided with conducting strip (211), apron (220) are located film sleeve (100) outside, set up on apron (220) and supply run-through (222) that conducting strip (211) passed, the both ends of apron (220) one side all are provided with first picture peg (221), first picture peg (221) with opening (120) looks adaptation, first picture peg (221) one end is provided with first inclined plane (2211), inlay mouth (2212) have been seted up on first picture peg (221), elastic component (230) set up in inside just being located film sleeve (100) opening (120) one side, elastic component (230) one end slides and runs through to opening (120) inside and be connected with second picture peg (231), opening (2211) are run-through ) One end of the second inserting plate (231) is provided with a second inclined surface (2311) matched with the first inclined surface (2211), the other end of the elastic piece (230) is provided with a pull rod (232) which penetrates through the film sleeve (100) in a sliding mode, and the end portion of the second inserting plate (231) can be inserted into the inserting opening (2212).

2. The lug of the double-conductor lithium-ion power battery of claim 1, wherein the elastic member (230) comprises a mounting groove (233), a transverse plate (234) and a spring (235), the mounting groove (233) is arranged inside the film sleeve (100), the transverse plate (234) is arranged inside the mounting groove (233) in a sliding manner, one end of the pull rod (232) penetrates through the inside of the mounting groove (233) and is connected with the transverse plate (234), the spring (235) is movably sleeved on the pull rod (232), one end of the spring (235) is connected with the transverse plate (234), and the other end of the spring (235) is connected with the inner wall of the mounting groove (233).

3. The lug of the double-conductor lithium-ion power battery as claimed in claim 2, wherein a sliding rod (2331) is fixed in the mounting groove (233), and the horizontal plate (234) is slidably sleeved on the sliding rod (2331).

4. The lug of the double-conductor lithium-ion power battery as claimed in claim 3, wherein two sliding rods (2331) are symmetrically arranged in the mounting groove (233), and two ends of the transverse plate (234) are respectively sleeved with the two symmetrical sliding rods (2331) in a sliding manner.

5. The lug of the double-conductor lithium-ion power battery as claimed in claim 2, wherein the end of the pull rod (232) far away from the transverse plate (234) is provided with a pull handle.

6. The dual-conductor lithium ion power battery tab as claimed in claim 1, wherein two through openings (222) are symmetrically disposed on the cover plate (220), and the conductive sheets (211) are disposed corresponding to the through openings (222).

7. The lug of the double-conductor lithium-ion power battery as claimed in claim 6, wherein the inner walls of the two through openings (222) are provided with insulating rubber gaskets (2221).

8. The dual conductor lithium ion power battery tab of claim 1 wherein the cover plate (220) has a cross-sectional shape that is the same as the cross-sectional shape of the film sleeve (100).

9. The two-conductor lithium-ion power battery tab according to claim 1, characterized in that the end of the cover plate (220) remote from the film sleeve (100) is provided with a handle (223).

10. The lug of the two-conductor lithium ion power battery as claimed in claim 9, wherein the handle (223) is externally fixed with an anti-slip sleeve (2231).