CN218334134U

CN218334134U - Cylindrical lithium ion battery pack

Info

Publication number: CN218334134U
Application number: CN202222587930.4U
Authority: CN
Inventors: 颜旺; 刘海波
Original assignee: Shenzhen Zhongyuan Battery Technology Co ltd
Current assignee: Shenzhen Zhongyuan Battery Technology Co ltd
Priority date: 2022-09-29
Filing date: 2022-09-29
Publication date: 2023-01-17
Anticipated expiration: 2032-09-29

Abstract

The utility model provides a cylinder type lithium ion battery group, including the shell that is used for cladding group battery body, the both ends of shell are the cecum and its concatenation shell that separates into two at least pegs graft by the middle part. The utility model discloses in, the mode cover that the shell adopted the grafting is established in the outside of battery fixed bolster, the shell falls into butt joint shell and butt joint shell down, simple saying so is exactly, go up butt joint shell and butt joint shell down and establish the back from the both ends cover of battery fixed bolster then peg graft, realize the protection to battery fixed bolster and group battery after the grafting, have the convenient advantage of shell and battery fixed bolster frame equipment, and when needs are retrieved and are dismantled the shell, just can realize the separation of battery fixed bolster frame and shell after will going up butt joint shell and the reverse pulling of butt joint shell down, it is convenient to retrieve.

Description

Cylindrical lithium ion battery pack

Technical Field

The utility model relates to a lithium cell technical field specifically is a cylinder type lithium ion battery group.

Background

The structure design of the commonly used universal cylindrical lithium ion battery pack is single at present, most of the commonly used universal cylindrical lithium ion battery pack is that a module and a protection plate are connected by an acquisition line independently, the manufacturing difficulty is high in the production process, the production efficiency is low, and the quality of a product cannot be effectively guaranteed.

In view of this, patent No.: CN213242742U discloses a cylindrical lithium ion battery pack, which comprises a battery shell and a battery pack body arranged in the battery shell, wherein the battery pack body comprises two battery fixing supports, a plurality of series-connected nickel sheets, a plurality of cylindrical batteries and an integrated protection plate, the cylindrical batteries are fixedly connected between the two battery fixing supports, a plurality of series-connected nickel sheets are arranged at two side ends of each battery fixing support, the cylindrical batteries are connected in series and parallel through the series-connected nickel sheets according to a preset series and parallel sequence, and the series-connected nickel sheets extend upwards to the top ends of the battery fixing supports; however, a specific connection mode of the shell and the battery fixing bracket is not disclosed, and the battery shell is of an integral structure, so that the arrangement can influence the assembly and the disassembly of the shell and the battery fixing bracket during the recovery.

Therefore, the utility model provides a cylindrical lithium ion battery group.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a not enough to prior art exists, the utility model aims at providing a cylinder type lithium ion battery group to solve the problem that proposes in the above-mentioned background art, the utility model discloses a separate into two at least plug-in shells with the shell by the middle part, it is more convenient that plug-in shell realizes the encapsulation operation afterwards from the grafting at battery fixed bolster's both ends, and it is more convenient to dismantle on the same principle.

In order to achieve the above purpose, the present invention is realized by the following technical solution: the cylindrical lithium ion battery pack comprises a shell for coating a battery pack body, wherein two ends of the shell are blind ends, the middle part of the shell is separated into at least two spliced shells, and the spliced shells are spliced when detachable and form a complete shell after being spliced.

Further, the quantity of concatenation shell is two and including last butt joint shell and lower butt joint shell, the dilatation plug bush when going up butt joint shell's butt joint mouth department and setting up an organic whole, the open end and the dilatation plug bush plug connection of butt joint shell down.

Furthermore, the expansion plug bush is in sealed splicing fit with the lower butt joint shell.

Further, the lower butt joint shell and the lower butt joint shell are arranged in an inclined mode.

Furthermore, a through hole close to the blind end is formed in the lower butt joint shell.

Furthermore, flanges close to the outer periphery are fixedly arranged at two ends of the shell.

The utility model has the advantages that: the utility model relates to a cylindrical lithium ion battery pack, which comprises a shell; splicing the shells; an upper docking shell; expanding the volume and inserting the sleeve; a through hole; a lower splice shell; a flange.

The utility model discloses relative prior art's beneficial effect is, the outside at battery fixed bolster is established to the mode cover that the shell adopted the grafting, the shell falls into butt joint shell and butt joint shell down, simple saying so is exactly, go up butt joint shell and butt joint shell down and establish the back from battery fixed bolster's both ends cover then peg graft, realize the protection to battery fixed bolster and group battery after the grafting, have the convenient advantage of shell and battery fixed bolster frame equipment, and when needs are retrieved and are dismantled the shell, just can realize the separation of battery fixed bolster frame and shell after will going up butt joint shell and the reverse pulling of butt joint shell down, it is convenient to retrieve.

Drawings

Fig. 1 is a schematic structural diagram of a cylindrical lithium ion battery pack according to the present invention after the outer casing is disassembled;

FIG. 2 is a schematic diagram of the right side view of FIG. 1 in a cylindrical lithium ion battery pack according to the present invention;

in the figure: 1. a housing; 2. splicing the shells; 21. an upper docking shell; 211. expanding the volume and inserting the sleeve; 212. a through hole; 22. a lower splice shell; 3. a flange.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.

Referring to fig. 1 and fig. 2, the present invention provides a technical solution: the utility model provides a cylinder type lithium ion battery group, including the shell 1 that is used for cladding group battery body, the group battery body is including the cylinder battery of range and the battery fixed bolster frame that is located the cylinder battery outside of range, battery fixed bolster frame is installed in shell 1 and its periphery cladding insulating layer, shell 1 is integral type metal casing structure usually, its one end sets up the end cover, in this technical scheme, the both ends of shell 1 are the blind end and its become at least two concatenation shells 2 of pegging graft by the middle part partition, at least two concatenation shells 2 are pegging graft when dismantling and constitute a complete casing after pegging graft, namely surround the outside at battery fixed bolster frame after at least two concatenation shells 2 splice, shell 1 that forms after the concatenation also plays the effect of protecting battery fixed bolster frame and its interior group battery, adopt the mode of concatenation to make things convenient for battery fixed bolster frame and shell 1 to assemble, it is convenient to retrieve the dismantlement like, wherein the both ends of shell 1 are fixed and are provided with flange 3 near the periphery, the effect of flange 3 is convenient for manual shell 1.

This embodiment, the quantity of concatenation shell 2 is two and including butt joint shell 21 and lower butt joint shell 22, go up butt joint shell 21's butt joint mouth department and set up the dilatation plug bush 211 when integrative, the open end and the dilatation plug bush 211 plug connection of lower butt joint shell 22, that is to say, lower butt joint shell 22 adopts transition fit's connected mode and dilatation plug bush 211 to peg graft, area of contact is big, utilize frictional force to realize down butt joint shell 22 and last butt joint shell 21's fastening connection, further expand and hold plug bush 211 and the sealed plug fit of lower butt joint shell 22, can paint the one deck sealed glue in the inside of dilatation plug bush 211, this kind of setting makes shell 1 after the grafting have dampproofing and waterproofing's advantage.

This embodiment, to butt joint shell 22 and butt joint shell 22 down for the slope setting, the incline direction is according to the relative surface of water slope 30-40 degrees of picture, the effect of this kind of setting is the area of further increase dilatation plug bush 211 and butt joint shell 22 contact down, the intensity of connection is improved, further butt joint shell 22 down is gone up and is offered the through-hole 212 that is close to the blind end, this through-hole 212 is located the one end of big dilatation plug bush 211, this kind of setting makes things convenient for group battery output terminal to draw forth through-hole 212 outwards, it is simple just to go up to butt joint shell 21 and butt joint shell 22 down before, the terminal is drawn forth to outside through-hole 212, make the operation of drawing forth of terminal more convenient.

When the battery pack is assembled, a terminal on the battery pack is led out outwards through the through hole 212, one end of the battery fixing support frame is inserted into the upper butt joint shell 21, the lower butt joint shell 22 is buckled into the battery fixing support frame from the other end of the battery fixing support frame and is close to the capacity expansion plug bush 211, the opening end of the lower butt joint shell 22 is set to have a certain taper degree, the battery fixing support frame and the battery pack can be conveniently inserted into the capacity expansion plug bush 211, the upper butt joint shell 21 and the lower butt joint shell 22 are extruded in an opposite direction by force, the opening end of the lower butt joint shell 22 is clamped into the capacity expansion plug bush 211, the whole battery fixing support frame and the battery pack are packaged at the moment, when the battery pack needs to be disassembled, the whole battery fixing support frame can be separated from the whole shell 1 by reversely pulling the upper butt joint shell 21 and the lower butt joint shell 22 through the flange 3, and the cylindrical ion battery pack is convenient to install and disassemble.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The utility model provides a cylinder type lithium ion battery group, is including shell (1) that is used for the cladding group battery body, its characterized in that, the both ends of shell (1) are the cecum and its concatenation shell (2) that become two at least pegs graft by the middle part separation, two at least concatenation shell (2) are pegged graft when can dismantle and are pegged graft the back and constitute a complete casing.

2. The cylindrical lithium ion battery pack of claim 1, wherein: the quantity of concatenation shell (2) is two and including last butt joint shell (21) and lower butt joint shell (22), dilatation plug bush (211) when going up the butt joint department of butt joint shell (21) and setting up an organic whole, the open end and the dilatation plug bush (211) the plug-in connection of butt joint shell (22) down.

3. The cylindrical lithium ion battery pack of claim 2, wherein: the expansion plug bush (211) is matched with the lower butt joint shell (22) in a sealing and inserting mode.

4. The cylindrical lithium ion battery pack of claim 2, wherein: the lower butt joint shell (22) and the lower butt joint shell (22) are arranged in an inclined mode.

5. The cylindrical lithium ion battery pack of claim 4, wherein: the lower butt joint shell (22) is provided with a through hole (212) close to the blind end.

6. The cylindrical lithium ion battery pack of claim 1, wherein: flanges (3) close to the outer periphery are fixedly arranged at two ends of the shell (1).