CN217009454U

CN217009454U - Insulation protection mechanism of lithium cell group

Info

Publication number: CN217009454U
Application number: CN202220220096.2U
Authority: CN
Inventors: 高翔
Original assignee: Suzhou Energy Si Electrical Material Co ltd
Current assignee: Suzhou Energy Si Electrical Material Co ltd
Priority date: 2022-01-27
Filing date: 2022-01-27
Publication date: 2022-07-19
Anticipated expiration: 2032-01-27

Abstract

The utility model discloses an insulation protection mechanism of a lithium battery pack, and relates to the technical field of battery protection. The battery pack comprises a first base and a second base, wherein the first base is connected with the second base through a side frame body, a plurality of buckles are arranged on the first base and the second base respectively, a plurality of clamping grooves are formed in the frame body, the first base or the second base is connected with the frame body through the buckles, a plurality of second positioning holes are formed in the first base and the second base respectively, a plurality of battery bodies are arranged between the first base and the second base, and the end parts of the battery bodies are positioned in the second positioning holes. According to the utility model, the gas in the rubber tube arranged at the filling part is exhausted, so that the rubber tube is contracted, and the battery body is convenient to place.

Description

Insulation protection mechanism of lithium cell group

Technical Field

The utility model belongs to the technical field of battery protection, and particularly relates to an insulation protection mechanism of a lithium battery pack.

Background

With the implementation of new energy planning in the country, the power battery of the electric vehicle is also getting more and more attention. At present, the market demand of lithium ion batteries is getting larger and larger, and the well-known lithium ion batteries need to meet the requirements of heavy current discharge, high rate cycle, longer service life and the like, so that the lithium ion batteries have special requirements on the insulativity of the batteries. A large number of battery packs are needed in the existing electric automobile production, and the single battery cells or the battery packs are needed to be connected in parallel and in series in order to achieve the high voltage and the high capacity of the batteries. The battery pack commonly used at present is fixed in a box body by a plurality of single battery boxes, electric cores, lug fixing plates and the like.

However, when the conventional power battery pack is applied to an electric vehicle and other environments with poor working conditions, the battery is easy to leak electricity or the battery pack and the battery leak electricity due to long-time vibration and friction after the battery is assembled into the vehicle, so that potential safety hazards are formed, and the service life and the use safety of the battery are seriously affected.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an insulation protection mechanism of a lithium battery pack, which realizes the contraction of a rubber tube by exhausting gas in the rubber tube arranged in a filling part, is convenient for placing a battery body and solves the related problems in the background technology.

In order to solve the technical problems, the utility model is realized by the following technical scheme:

the utility model relates to an insulation protection mechanism of a lithium battery pack, which comprises a first base and a second base, wherein the first base and the second base are connected through a side frame body, a plurality of buckles are respectively arranged on the first base and the second base, a plurality of clamping grooves are formed in the frame body, the first base or the second base is connected with the frame body through the buckles and the clamping grooves, a plurality of second positioning holes are respectively arranged on the first base and the second base, a plurality of battery bodies are arranged between the first base and the second base, the end parts of the battery bodies are positioned in the second positioning holes, an air inlet part communicated with a filling part is arranged on the first base, and an air outlet part communicated with the filling part is arranged on the second base.

Furthermore, be equipped with the first locating hole of a plurality of on the side that the second locating hole was seted up to first base, one the week side equipartition in first locating hole has four second locating holes, the deep trouth has been seted up on the another side of first base, a plurality of first passageways have been seted up to the bottom surface in deep trouth, open one side of first passageway has the second that communicates with first locating hole and lead to the groove.

Furthermore, two groups of clamping grooves are symmetrically arranged on the outer side face of the side frame body, a group of clamping grooves close to the first base are connected with the buckle of the first base, and a group of clamping grooves close to the second base are connected with the buckle of the second base.

Further, the first and second base structural features are identical.

Further, an air inlet portion is installed at the inlet end of the first channel of the first base, an air outlet portion is installed at the outlet end of the first channel of the second base, a filling portion is further installed between the first base and the second base, and the end portion of the filling portion is installed in the first positioning hole.

Further, the filling part comprises a pipe body and a rubber pipe, the middle of the pipe body is provided with a plurality of through grooves, the rubber pipe is installed on the outer side of the pipe body, and the rubber pipe is located on the outer side of the through grooves.

The utility model has the following beneficial effects:

1. the rubber tube arranged at the filling part of the utility model discharges gas in the rubber tube, thereby realizing the contraction of the rubber tube and facilitating the placement of the battery body, the cover plate arranged in the deep groove arranged on the first base or the second base is removed, the battery body with the installation is inserted into the two corresponding second positioning holes, and after the installation is finished, the cover plate arranged is reset and installed, thereby facilitating the replacement and maintenance of the battery body.

2. The inert gas enters the filling part through the air inlet part, and the rubber tube arranged on the filling part is spread, so that the phenomenon that the mounted battery body shakes in the moving process is avoided, and in addition, when danger occurs, the rubber tube is scratched or burnt, the release of the inert gas is realized, and the spontaneous combustion of the battery is effectively prevented.

Of course, it is not necessary for any product in which the utility model is practiced to achieve all of the above-described advantages at the same time.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

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

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

FIG. 3 is a schematic view of the cross-sectional structure A-A of FIG. 2 according to the present invention;

FIG. 4 is a schematic view of the internal structure of the present invention;

FIG. 5 is a schematic view of a first base structure of the present invention;

FIG. 6 is a schematic view of the filling portion of the present invention;

FIG. 7 is a schematic view of the cross-sectional structure B-B of FIG. 6 according to the present invention;

in the drawings, the components represented by the respective reference numerals are listed below:

1-a first base, 11-a first channel, 12-a second channel, 13-a first positioning hole, 14-a second positioning hole, 15-a buckle, 2-a side frame body, 21-a clamping groove, 3-a second base, 4-an air inlet part, 5-an air outlet part, 6-a cover plate, 7-a filling part, 71-a pipe body, 72-a rubber pipe, 73-a through groove and 8-a battery body.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "opening," "upper," "lower," "end," "top," "middle," "side," "inner," "peripheral," and the like are used in an orientation or positional relationship that is merely for convenience in describing and simplifying the description, and do not indicate or imply that the referenced components or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus are not to be considered as limiting the present invention.

The first embodiment is as follows:

referring to fig. 1-2 and 5, the present invention is an insulation protection mechanism for a lithium battery pack, including a first base 1 and a second base 3, the first base 1 is connected to the second base 3 through a side frame 2, the first base 1 and the second base 3 are both provided with a plurality of fasteners 15, the frame 2 is provided with a plurality of slots 21, the first base 1 or the second base 3 is connected to the frame 2 through the fasteners 15 and the slots 21, the first base 1 and the second base 3 are both provided with a plurality of second positioning holes 14, a plurality of battery bodies 8 are installed between the first base 1 and the second base 3, and ends of the battery bodies 8 are located in the second positioning holes 14.

As an embodiment provided by the present invention, preferably, a plurality of first positioning holes 13 are disposed on the side of the first base 1 where the second positioning holes 14 are disposed, and four second positioning holes 14 are uniformly disposed on the periphery of one first positioning hole 13.

As an embodiment provided by the present invention, preferably, two sets of slots 21 are symmetrically disposed on the outer side surface of the side frame 2, one set of slots 21 close to the first base 1 is connected to the buckle 15 of the first base 1, and one set of slots 21 close to the second base 3 is connected to the buckle 15 of the second base 3.

As an embodiment provided by the present invention, it is preferable that the first base 1 and the second base 3 have the same structural features.

Example two:

as shown in fig. 1-5, a deep groove is formed on the other side surface of the first base 1, a plurality of first channels 11 are formed on the bottom surface of the deep groove, a second through groove 12 communicated with the first positioning hole 13 is formed on one side of each first channel 11, an outlet end of each first channel 11 is provided with an outlet part 5, an inlet part 4 communicated with the filling part 7 is mounted on the first base 1, and an outlet part 5 communicated with the filling part 7 is mounted on the second base 3; an air outlet part is arranged at the outlet end of the first channel 11.

As an embodiment provided by the present invention, it is preferable that the inlet end of the first channel 11 of the first chassis 1 is installed with the air inlet 4, the second chassis 3, and the filling part 7 is further installed between the first chassis 1 and the second chassis 3, and an end of the filling part 7 is installed in the first positioning hole 13.

As an embodiment provided by the present invention, preferably, the filling part 7 includes a tube body 71 and a rubber tube 72, the middle part of the tube body 71 is provided with a plurality of through slots 73, the rubber tube 72 is installed outside the tube body 71, the outlet end of the first channel 11 is installed with the air outlet part 5, and the rubber tube 72 is located outside the through slots 73.

Control valves are arranged on the pipe bodies of the air inlet part 4 and the air outlet part 5, the main bodies of the air inlet part 4 and the air outlet part 5 are all in a housing structure, and the housing is sleeved at the end part of the air inlet part 4 or the air outlet part 5;

when the battery body 8 is installed, the valve body connected with the air inlet part 4 is closed, the valve body connected with the air outlet part 5 is opened, the air in the rubber tube 72 arranged in the filling part 7 is discharged, the rubber tube 72 is contracted, the battery body 8 is convenient to place, the cover plate 6 arranged in the deep groove arranged on the first base 1 or the second base 3 is detached, the battery body 8 with the installation is inserted into the two corresponding second positioning holes 14, and after the installation is finished, the cover plate 6 is reset and installed, so that the replacement and maintenance of the battery body 8 are convenient to realize;

after battery body 8, through opening the valve body that the portion of admitting air 4 is connected, close the valve body that the portion of giving vent to anger 5 is connected, be convenient for inert gas through opening in the portion of admitting air 4 gets into filling portion 7, the rubber tube 72 that is equipped with filling portion 7 struts, avoid at the in-process of motion, battery body 8 of installation takes place to rock, in addition when taking place danger, the rubber tube 72 that is equipped with is lacerated or is burnt, realize the release of inert gas, effectual prevention battery spontaneous combustion.

In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The preferred embodiments of the utility model disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the utility model to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the utility model and the practical application, to thereby enable others skilled in the art to best utilize the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. The utility model provides an insulating protection machanism of lithium cell group, includes first base (1) and second base (3), its characterized in that:

the first base (1) is connected with the second base (3) through a side frame body (2);

a plurality of second positioning holes (14) and first positioning holes (13) are formed in the first base (1) and the second base (3);

a filling part (7) is further arranged between the first base (1) and the second base (3), and the end part of the filling part (7) is arranged in the first positioning hole (13);

install on first base (1) and admit air portion (4) with filling portion (7) intercommunication, install on second base (3) and give vent to anger portion (5) with filling portion (7) intercommunication.

2. The insulation protection mechanism of a lithium battery pack according to claim 1, wherein a plurality of first positioning holes (13) are formed on the side surface of the first base (1) where the second positioning holes (14) are formed, and four second positioning holes (14) are uniformly distributed on the periphery of one first positioning hole (13).

3. The insulation protection mechanism of the lithium battery pack as claimed in claim 2, wherein a deep groove is formed on the other side surface of the first base (1), a plurality of first channels (11) are formed on the bottom surface of the deep groove, and a second through groove (12) communicated with the first positioning hole (13) is formed on one side of each first channel (11).

4. The insulation protection mechanism of the lithium battery pack according to claim 1, wherein the first base (1) and the second base (3) are respectively provided with a plurality of fasteners (15), the frame body (2) is provided with a plurality of clamping grooves (21), and the first base (1) or the second base (3) is connected with the frame body (2) through the fasteners (15) and the clamping grooves (21).

5. The lithium battery pack insulation protection mechanism according to claim 3, wherein the first base (1) and the second base (3) have identical structural features.

6. The insulation protection mechanism of the lithium battery pack according to claim 5, wherein an inlet portion (4) is installed at an inlet end of the first channel (11) of the first base (1), and an outlet portion (5) is installed at an outlet end of the first channel (11) of the second base (3).

7. The insulation protection mechanism of the lithium battery pack according to claim 4, wherein two sets of slots (21) are symmetrically disposed on the outer side surface of the side frame body (2), one set of slots (21) close to the first base (1) is connected with the buckle (15) of the first base (1), and one set of slots (21) close to the second base (3) is connected with the buckle (15) of the second base (3).

8. The insulation protection mechanism of the lithium battery pack as claimed in claim 6, wherein the filling portion (7) comprises a tube body (71) and a rubber tube (72), a plurality of through slots (73) are formed in the middle of the tube body (71), the rubber tube (72) is installed on the outer side of the tube body (71), and the rubber tube (72) is located on the outer side of the through slots (73).