CN210272525U

CN210272525U - Lithium battery tab

Info

Publication number: CN210272525U
Application number: CN201921700769.9U
Authority: CN
Inventors: 熊赵成
Original assignee: Shenzhen Jiaruitaige Technology Co Ltd
Current assignee: Shenzhen Jiaruitaige Technology Co Ltd
Priority date: 2019-10-11
Filing date: 2019-10-11
Publication date: 2020-04-07
Anticipated expiration: 2029-10-11

Abstract

The utility model discloses a relate to the technical field of lithium battery, specifically be a lithium battery tab, including card case main part, the cavity is left to the inside of card case main part, copper sheet fixture block activity groove has been seted up to one side at cavity inner wall top, the inside sliding connection in copper sheet fixture block activity groove has the copper sheet fixture block, the copper sheet mounting groove has been seted up to the positive surface of copper sheet fixture block, the inside fixedly connected with copper sheet in copper sheet mounting groove, the first dog of back fixedly connected with of copper sheet fixture block. Through fixing the aluminum sheet on the aluminum sheet fixture block, fix the copper sheet on the copper sheet fixture block, insert card incasement with two fixture blocks, aluminum sheet and copper sheet can contact, and then reach the purpose that increases the copper sheet on the aluminum sheet to solved and to have carried out secondary welded problem to the copper sheet, the material of card case and fixture block is plastics simultaneously, and plastics are bad conductor, can play the purpose to the protection of contact, thereby solved the contact and do not have the problem that protection device exists the potential safety hazard.

Description

Lithium battery tab

Technical Field

The utility model relates to a lithium cell technical field specifically is a lithium cell utmost point ear.

Background

At present, along with the consumption of non-renewable energy sources such as coal mines, petroleum and natural gas, the research and development of green energy sources in various regions attach more and more importance, and the green energy sources are more and more used in life, are clean energy sources, use the environmental protection, can not produce harm or very little harm to the environment.

With the proposal of green travel port numbers, more and more people select electric vehicles as travel modes, most of the electric vehicles use lithium batteries as power output sources of the electric vehicles, the lithium batteries have the characteristics of high working voltage, high energy density, good safety, light weight, long service life and no pollution compared with the lead-acid batteries used before, the anode of the lithium battery core produced at present generally adopts nickel sheets which are respectively welded on aluminum foils and copper foils of anode and cathode pole pieces in an ultrasonic welding mode to supply power for the batteries, the power provided by one lithium battery in real life is not enough to support mechanical movement, two or even a plurality of lithium batteries need to be connected in series to achieve the purpose of increasing the power, at present, when the lithium batteries are connected in series, one nickel sheet needs to be welded on the aluminum sheet of the anode in an ultrasonic welding mode, then, the series welding of the lithium battery is completed, and the method solves the problems and has the following defects:

(1) when the lithium batteries are connected in series, the nickel sum rate cannot be directly welded, so that a nickel sheet needs to be welded on an anode aluminum sheet of the lithium batteries to be connected in series by ultrasonic waves, and the welding requirement of the nickel sheet and a cathode nickel sheet can be met, so that the workload is increased, and meanwhile, the problem of poor transmission efficiency exists at the welding position of the aluminum sheet and the nickel sheet;

(2) the welding point of aluminum sheet and nickel piece does not have protection device, just so causes the scheduling problem of the damage of welding point easily, can influence the use of lithium cell like this, has the potential safety hazard, still can increase the disability rate of lithium cell simultaneously, does not accord with green's theory.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model provides a lithium battery tab, through the nickel piece transposition copper sheet that will weld on the aluminum sheet and increase a buckle mechanism, solved the problem of proposing among the above-mentioned background art.

(II) technical scheme

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: a lithium battery tab comprises a card box main body, a cavity is reserved inside the card box main body, a copper sheet clamping block movable groove is arranged on one side of the top of the inner wall of the cavity, the copper sheet clamping block is slidably connected inside the copper sheet clamping block movable groove, a copper sheet mounting groove is formed in the outer surface of the front side of the copper sheet clamping block, the copper sheet is fixedly connected inside the copper sheet mounting groove, the back of the copper sheet clamping block is fixedly connected with a first stop block, an aluminum sheet fixture block movable groove is arranged on the other side of the cavity far away from the inner wall of the copper sheet fixture block movable groove, an aluminum sheet fixture block is connected in the aluminum sheet fixture block movable groove in a sliding manner, an aluminum sheet mounting groove is formed on the outer surface of the front surface of the aluminum sheet clamping block, an aluminum sheet is fixedly connected inside the aluminum sheet mounting groove, the back of the aluminum sheet clamping block is fixedly connected with a second stop block, and tab glue is coated at the gap of the clamping box main body.

Optionally, the size of the movable groove of the copper sheet clamping block is matched with the size of the copper sheet clamping block, and the shape of the movable groove of the copper sheet clamping block is matched with the shape of the copper sheet clamping block.

Optionally, the size of the copper sheet installation groove is matched with the size of the copper sheet, and the shape of the copper sheet installation groove is matched with the shape of the copper sheet.

Optionally, the size of the aluminum sheet fixture block movable groove is matched with that of the aluminum sheet fixture block, and the shape of the aluminum sheet fixture block movable groove is matched with that of the aluminum sheet fixture block.

Optionally, the size of the aluminum sheet mounting groove is matched with the size of the aluminum sheet, and the shape of the aluminum sheet mounting groove is matched with the shape of the aluminum sheet.

Optionally, the position of the copper sheet fixture block movable groove is matched with the position of the aluminum sheet fixture block movable groove.

Optionally, the joint of the copper sheet fixture block and the card box main body is coated with tab glue, and the joint of the aluminum sheet fixture block and the card box main body is coated with tab glue.

(III) advantageous effects

The utility model provides a lithium battery tab possesses following beneficial effect:

1. the nickel sheet which needs to be welded on the aluminum sheet is replaced by the copper sheet, and the copper sheet is a good conductor, so that the transmission efficiency between the copper sheet and the aluminum sheet can be increased, the purposes of high transmission efficiency and low energy loss are further realized, and the problem of poor transmission efficiency between the welding positions of the nickel sheet and the aluminum sheet is solved.

2. Through fixing the aluminum sheet on the aluminum sheet fixture block, fix the copper sheet on the copper sheet fixture block, when connecting, insert two fixture blocks card incasement, can realize the contact of aluminum sheet and copper sheet, and then can reach the purpose that increases the copper sheet on the aluminum sheet, thereby solved and carried out secondary welded problem to the copper sheet, the material of draw-in groove and fixture block is plastics simultaneously, plastics are the bad conductor of electricity, so can play the purpose to the contact protection, still can paint utmost point ear glue externally, further reach the purpose of sealing protection contact department, thereby solved the contact department and not had the problem that protection device exists the potential safety hazard.

Drawings

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

FIG. 2 is a schematic view of the cross-sectional structure of the present invention;

FIG. 3 is a schematic view of a sectional structure of the main body of the card box of the present invention;

fig. 4 is a schematic view of the front view structure of the present invention;

fig. 5 is a schematic diagram of the structure of the copper sheet clamping block of the present invention.

In the figure: 1-card box main body, 2-copper sheet fixture block, 3-copper sheet, 4-aluminum sheet fixture block, 5-aluminum sheet, 6-tab glue, 7-copper sheet mounting groove, 8-first stopper, 9-copper sheet active groove, 10-cavity, 11-aluminum sheet fixture block active groove, 12-aluminum sheet mounting groove, 13-second stopper.

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.

Referring to fig. 1 to 5, the present invention provides a technical solution: the utility model provides a lithium battery tab, including card case main part 1, cavity 10 has been left to the inside of card case main part 1, copper sheet fixture block activity groove 9 has been seted up to one side at cavity 10 inner wall top, the inside sliding connection of copper sheet fixture block activity groove 9 has copper sheet fixture block 2, copper sheet mounting groove 7 has been seted up to the positive surface of copper sheet fixture block 2, the inside fixedly connected with copper sheet 3 of copper sheet mounting groove 7, the first dog 8 of back fixedly connected with of copper sheet fixture block 2, cavity 10 keeps away from the opposite side of copper sheet fixture block activity groove 9 inner wall and has seted up aluminum sheet fixture block activity groove 11, the inside sliding connection of aluminum sheet fixture block activity groove 11 has aluminum sheet fixture block 4, aluminum sheet mounting groove 12 has been seted up to the positive surface of aluminum sheet fixture block 4, the inside fixedly connected with aluminum sheet 5 of aluminum sheet mounting groove 12, the back fixedly connected.

As an optimal technical solution of the utility model:

the size of the copper sheet clamping block movable groove 9 is matched with that of the copper sheet clamping block 2, the shape of the copper sheet clamping block movable groove 9 is matched with that of the copper sheet clamping block 2, so that the copper sheet clamping block 2 is in close contact with the copper sheet clamping block movable groove 9, the copper sheet clamping block 2 can freely slide in the copper sheet clamping block movable groove 9, and the purpose of facilitating movement of the copper sheet clamping block 2 is achieved.

As an optimal technical solution of the utility model:

the size of copper sheet mounting groove 7 and the size of copper sheet 3 are adapted, and the shape of copper sheet mounting groove 7 and the shape of copper sheet 3 are adapted, make copper sheet 3 be a little higher than copper sheet mounting groove 7, and copper sheet 3 can fix in copper sheet mounting groove 7, reach and keep copper sheet 3 can not buckle folding to and can closely laminate with aluminum sheet 5 the purpose.

As an optimal technical solution of the utility model:

the size of aluminum sheet fixture block activity groove 11 and the size looks adaptation of aluminum sheet fixture block 4, the shape of aluminum sheet fixture block activity groove 11 and the shape looks adaptation of aluminum sheet fixture block 4 make aluminum sheet fixture block 4 and aluminum sheet fixture block activity groove 11 in close contact with, and aluminum sheet fixture block 4 can freely slide in the inside of aluminum sheet fixture block activity groove 11, reaches the purpose of the aluminum sheet fixture block 4 motion of being convenient for.

As an optimal technical solution of the utility model:

the size of aluminum sheet mounting groove 12 and the size looks adaptation of aluminum sheet 5, the shape of aluminum sheet mounting groove 12 and the shape looks adaptation of aluminum sheet 5 make aluminum sheet 5 be a little higher than aluminum sheet mounting groove 12, and aluminum sheet 5 can fix in aluminum sheet mounting groove 12, reaches and keeps aluminum sheet 5 can not the bending folding to and can closely laminate's purpose with copper sheet 3.

As an optimal technical solution of the utility model:

the position of the copper sheet clamping block movable groove 9 is matched with the position of the aluminum sheet clamping block movable groove 11, so that the aluminum sheet 5 and the copper sheet 3 can be tightly attached, and the purpose that electricity can be conducted to the copper sheet 3 through the aluminum sheet 5 is achieved.

As an optimal technical solution of the utility model:

copper sheet fixture block 2 scribbles utmost point ear and glues 6 with the junction of card case main part 1, and aluminum sheet fixture block 4 scribbles utmost point ear and glues 6 with the junction of card case main part 1, uses utmost point ear to glue 6 and can seal the junction to reach the purpose that reduces the potential safety hazard and take place, and use utmost point ear to glue 6 and can reach the effect of fastening, prevent that the not hard up condition of connection of copper sheet 3 and aluminum sheet 5 from taking place.

To sum up, in the lithium battery tab, when in use, the nickel sheet to be welded on the aluminum sheet 5 is replaced by the copper sheet 3, and the copper sheet 3 is a good conductor, so that the transmission efficiency between the copper sheet 3 and the aluminum sheet 5 can be increased, and the purposes of high transmission efficiency and low energy loss are further realized, so that the problem of poor transmission efficiency between the welding parts of the nickel sheet and the aluminum sheet 5 is solved, the aluminum sheet 5 is fixed on the aluminum sheet clamping block 4, the copper sheet 3 is fixed on the copper sheet clamping block 2, when in connection, the two clamping blocks are inserted into the clamping box, the contact between the aluminum sheet 5 and the copper sheet 3 can be realized, and the purpose of increasing the copper sheet 3 on the aluminum sheet 5 can be further realized, so that the problem of secondary welding of the copper sheet 3 is solved, meanwhile, the clamping grooves and the clamping blocks are made of plastics, and the plastics are poor conductors of electricity, so that the purpose of protecting, and tab glue 6 can be coated outside, so that the purpose of sealing and protecting the contact position is further achieved, and the problem that no protection device exists in the contact position and potential safety hazard exists is solved.

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 lithium battery tab, includes card case main part (1), its characterized in that: a cavity (10) is reserved in the card box main body (1), a copper sheet clamping block movable groove (9) is formed in one side of the top of the inner wall of the cavity (10), a copper sheet clamping block (2) is connected to the inside of the copper sheet clamping block movable groove (9) in a sliding mode, a copper sheet mounting groove (7) is formed in the outer surface of the front side of the copper sheet clamping block (2), a copper sheet (3) is fixedly connected to the inside of the copper sheet mounting groove (7), a first clamping block (8) is fixedly connected to the back side of the copper sheet clamping block (2), an aluminum sheet clamping block movable groove (11) is formed in the other side, far away from the inner wall of the copper sheet clamping block movable groove (9), of the cavity (10), an aluminum sheet clamping block movable groove (11) is connected to the inside of the aluminum sheet clamping block movable groove (4) in a sliding mode, the back of the aluminum sheet clamping block (4) is fixedly connected with a second clamping block (13), and tab glue (6) is coated at the gap of the clamping box main body (1).

2. The tab for lithium batteries according to claim 1, wherein: the size of the copper sheet fixture block movable groove (9) is matched with that of the copper sheet fixture block (2), and the shape of the copper sheet fixture block movable groove (9) is matched with that of the copper sheet fixture block (2).

3. The tab for lithium batteries according to claim 1, wherein: the size of the copper sheet mounting groove (7) is matched with that of the copper sheet (3), and the shape of the copper sheet mounting groove (7) is matched with that of the copper sheet (3).

4. The tab for lithium batteries according to claim 1, wherein: the size of the aluminum sheet fixture block movable groove (11) is matched with that of the aluminum sheet fixture block (4), and the shape of the aluminum sheet fixture block movable groove (11) is matched with that of the aluminum sheet fixture block (4).

5. The tab for lithium batteries according to claim 1, wherein: the size of aluminum sheet mounting groove (12) and the size looks adaptation of aluminum sheet (5), the shape of aluminum sheet mounting groove (12) and the shape looks adaptation of aluminum sheet (5).

6. The tab for lithium batteries according to claim 1, wherein: the position of the copper sheet clamping block movable groove (9) is matched with the position of the aluminum sheet clamping block movable groove (11).

7. The tab for lithium batteries according to claim 1, wherein: the joint of the copper sheet clamping block (2) and the clamping box main body (1) is coated with tab glue (6), and the joint of the aluminum sheet clamping block (4) and the clamping box main body (1) is coated with the tab glue (6).