CN216958382U - Battery module and battery pack - Google Patents

Abstract

The utility model discloses a battery module and a battery pack, which comprise a shell, wherein an accommodating cavity is formed in the shell; the battery pack is integrated in the accommodating cavity and comprises a plurality of single batteries; a plurality of conductive bars, each conductive bar being electrically connected to at least two of the unit cells; the top covers are covered on the conducting bars, and the projection area of the top covers along the height direction of the single batteries is not smaller than that of the conducting bars; the top cover is connected with the conducting bar in a clamping manner; the top cover is provided with a fixing part on one side close to the collection wire harness, and the collection wire harness is fixedly connected with the fixing part. According to the battery module, each conductive bar is correspondingly provided with the top cover, the top covers fix the collecting wire harnesses through the fixing parts, the safety protection effect is improved, the production cost of the top covers is lower than that of an integral top cover, the cost is saved, an insulating plate does not need to be additionally arranged on each top cover for protection, and the production cost is further reduced.

Description

Battery module and battery pack

Technical Field

The utility model relates to the technical field of batteries, in particular to a battery module and a battery pack.

Background

The battery module generally includes a case; the battery pack is arranged in the accommodating cavity of the shell and comprises a plurality of single batteries; the top cover is integrally covered on the top of the battery pack so as to install and fix the acquisition wiring harness through the top cover; the plurality of conductive bars are clamped on the top cover, and each conductive bar is electrically connected with at least two single batteries so as to realize the serial connection and/or the parallel connection of the battery packs; and the insulating plate is covered on the top cover so as to avoid touching the conducting bar through the safety protection of the insulating plate.

Based on the structure of the battery module in the prior art, it is not difficult to find that the structure in the prior art has the following disadvantages:

1. the top cover is integral, the area is large, and the cost of the die is high;

2. the insulating board needs to be fixed on the top cover, so that the working procedures are increased, and the production cost is improved.

Therefore, in view of the above technical problems, it is an urgent need for those skilled in the art to develop a novel battery module and a novel battery pack.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a novel battery module and a battery pack, wherein an insulating plate is omitted, a plurality of top covers and conductive bars are correspondingly arranged one by one, and the top covers are provided with a wire harness fixing function.

In order to achieve the above purpose, the utility model provides the following technical scheme:

the utility model provides a battery module, which comprises:

a housing, the interior of which is formed as an accommodating cavity;

a battery pack integrated within the receiving cavity, the battery pack including a plurality of cells;

a plurality of conductive bars, each of which is electrically connected with at least two of the unit cells; and

the top covers correspond to the conductive bars one by one, the top covers are covered on the conductive bars, and the projection area of the top covers along the height direction of the single batteries is not smaller than that of the conductive bars;

the top cover is connected with the conductive bar in a clamping manner;

the top cover is provided with a fixing part on one side close to the collection wire harness, and the collection wire harness is fixedly connected with the fixing part through the fixing part.

Further, the top cover includes:

the main body part is covered on the conductive bar;

the two groups of connecting parts and one positioning column are arranged on the main body part;

the conductive bar is positioned through the positioning column, and the conductive bar is connected with the main body part in a clamping manner through the connecting part.

Further, the main body part is box-shaped, and the inside of the box-shaped structure is formed to accommodate the conductive bar.

Furthermore, the conducting bar is provided with a convex part protruding towards the main body part, and the convex part is provided with a positioning hole;

the two groups of connecting parts are arranged at intervals along the width direction of the conductive bar, and each group of connecting parts comprises two connecting parts which are arranged at intervals along the length direction of the conductive bar;

the positioning column is embedded into the positioning hole.

Further, the collection harness has at least one collection portion;

the collecting part is positioned on one surface of the conductive bar facing the main body part and positioned between the corresponding connecting part and the convex part.

Further, the connection portion includes:

a connecting arm, one end of which is connected with the main body part; and

the clamping part is connected to the end part of one end, far away from the main body part, of the connecting arm;

two along the width direction symmetrical arrangement of main part form the inserted hole between the joint portion, electrically conductive row pass through the inserted hole insert and with the connecting portion joint is connected.

Further, the fixing portion includes:

the binding buckle is positioned on the outer surface of the side wall of one side of the main body part and extends along the routing direction of the acquisition wiring harness, and two ends of the binding buckle are connected with the side wall of the main body part and form a through hole with the side wall; and

a strap passing through the through-hole to secure the collection wire bundle to the top cap.

Furthermore, a gap is formed in the side wall integrating one side of the fixing part, and the gap extends along the length direction of the conductive bar to avoid the collecting part through the gap;

the side wall opposite to one side of the fixing part is provided with a group of connecting parts, and a gap is formed between each connecting part and the side wall.

The utility model discloses a battery pack, which is provided with a cable or a wiring harness, wherein the cable or the wiring harness extends along the length direction of a battery module;

the battery pack is provided with two fixing parts;

one of the fixing parts is used for fixing the collecting wire harness;

the other fixing part is used for fixing the cable or the wiring harness.

In the above technical scheme, the battery module and the battery pack provided by the utility model have the following beneficial effects:

according to the battery module, each conductive bar is correspondingly provided with the top cover, the top covers fix the collecting wire harnesses through the fixing parts, the safety protection effect is improved, the production cost of the top covers is lower than that of an integral top cover, the cost is saved, an insulating plate does not need to be additionally arranged on each top cover for protection, and the production cost is further reduced.

According to the battery module, the collecting wire harness is directly fixed on the top surface of the single battery by the fixing part on the side surface of the top cover, and compared with the mode that the collecting wire harness is arranged on the top cover and the insulating plate is arranged in the prior art, the overall height of the battery module is reduced.

The battery pack is provided with two fixing parts, one fixing part is used for fixing the collecting wiring harness, and the other fixing part is used for fixing the cable or the wiring harness, so that the cable or the wiring harness is effectively prevented from crossing over an insulating plate in the prior art, and the internal height space of the battery pack is reduced.

Drawings

In order to more clearly illustrate the embodiments of the present application or technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present invention, and other drawings can be obtained by those skilled in the art according to the drawings.

Fig. 1 is a schematic structural diagram of a battery module according to an embodiment of the present invention;

fig. 2 is a partially enlarged view of a fixing portion of a battery module according to an embodiment of the present invention;

fig. 3 is a schematic view of a connection structure between a top cover and a conductive bar of a battery module according to an embodiment of the utility model.

Description of reference numerals:

1. a housing; 2. a battery pack; 3. collecting a wire harness; 4. a top cover; 5. a conductive bar;

301. a collecting part;

401. a fixed part; 402. a main body portion; 403. a side wall; 404. a positioning column; 405. a connecting portion;

40101. binding a belt; 40102. fastening;

40501. a connecting arm; 40502. a clamping part;

501. a convex portion.

Detailed Description

In order to make the technical solutions of the present invention better understood, those skilled in the art will now describe the present invention in further detail with reference to the accompanying drawings.

See fig. 1-3;

in the first embodiment, the first embodiment discloses a novel battery module;

this battery module includes:

a housing 1, wherein the interior of the housing 1 is formed into a containing cavity;

a battery pack 2 integrated in the housing chamber, the battery pack 2 including a plurality of unit cells;

a plurality of conductive bars 5, each conductive bar 5 being electrically connected to at least two unit cells; and

the top covers 4 correspond to the conductive bars 5 one by one, the top covers 4 are covered on the conductive bars 5, and the projection area of the top covers 4 along the height direction of the single batteries is not smaller than the projection area of the conductive bars 5;

thetop cover 4 is connected with the conductive bar 5 in a clamping manner;

thetop cover 4 has a fixingportion 401 on a side close to the collectingharness 3, and is fixedly connected to the collectingharness 3 through the fixingportion 401.

Specifically, the battery module disclosed in the first embodiment includes a housing 1, a battery pack 2, a plurality of conductive bars 5, andtop covers 4 corresponding to the conductive bars 5 one to one; according to the integration requirement of the battery pack 2, an accommodating cavity capable of accommodating the battery pack 2 is processed in the housing 1, and meanwhile, the battery pack 2 is a collection of a plurality of single batteries. Thetop cover 4 of the first embodiment is installed in one-to-one correspondence with the conductive bars 5, and the fixingportion 401 is provided on the side of thetop cover 4 close to the collectingharness 3, so that the collectingharness 3 is fixed by the fixingportion 401. Through this kind of mode, both can realize gathering the fixed ofpencil 3, can realize safety protection again, and this embodiment adopts a plurality oftop caps 4 and the cooperation of leading electrical bar 5 moreover, compares 4 manufacturing cost reductions of integral top cap, has practiced thrift the cost, need not establish the insulation board as the protection in addition attop cap 4 upper cover, reduction in production cost.

Preferably, thetop cover 4 of the first embodiment comprises:

amain body 402, wherein themain body 402 covers the conductive bar 5;

two sets of connectingparts 405 and apositioning column 404 are arranged on themain body part 402;

the conductive bar 5 is positioned by thepositioning column 404, and the conductive bar 5 is connected with themain body 402 by the connectingpart 405 in a clamping manner.

Thebody portion 402 is box-shaped, and the interior of the box-like structure is formed to accommodate the conductive bar 5.

The conductive bar 5 has aprotrusion 501 protruding toward themain body 402, and theprotrusion 501 has a positioning hole;

the two groups of connectingparts 405 are arranged at intervals along the width direction of the conductive bar 5, and each group of connectingparts 405 comprises two connectingparts 405 arranged at intervals along the length direction of the conductive bar 5;

positioningpost 404 is inserted into the positioning hole.

First, in order to connect the conductive bar 5 to thetop cover 4 and to position accurately, aconvex portion 501 protruding toward themain body 402 is formed at the middle position of the conductive bar 5, the positioning hole is formed at the middle position of theconvex portion 501, and thepositioning column 404 at the middle position of themain body 402 is matched with the positioning hole, so that the conductive bar 5 is positioned and connected by the two sets of connectingportions 405 in a snap-fit manner.

Preferably, the collectingharness 3 of the first embodiment has at least one collectingpart 301;

the collectingportions 301 are located on a surface of the conductive bar 5 facing themain body portion 402 and between the corresponding connectingportions 405 and theconvex portions 501.

The collectingunit 301 according to the first embodiment may be a terminal, or may be a separate temperature sensor, a nickel plate, or an aluminum plate, and the terminal is illustrated as an example to show a connection structure, and the temperature and voltage information collection of the battery is realized through the terminal. When the collectingpart 301 is a temperature sensor and a nickel sheet or an aluminum sheet, the temperature sensor is adhered to the conductive bar 5, and the nickel sheet or the aluminum sheet is welded to the conductive bar 5.

Preferably, theconnection portion 405 includes:

a connectingarm 40501, one end of the connectingarm 40501 being connected to themain body 402; and

a snap-inportion 40502 connected to an end portion of the connectingarm 40501 remote from themain body portion 402;

two snap-inportions 40502 symmetrically arranged in the width direction of themain body 402 form an insertion opening therebetween, through which the conductive bar 5 is inserted and snap-connected to the connectingportion 405.

In order to realize the clamping connection between the conductive bar 5 and thetop cover 4, under the positioning action of thepositioning column 404, the clamping connection of theconnection portion 405 is further required, and theconnection portion 405 related to the first embodiment forms the clamping connection for the conductive bar 5, specifically: connectingportion 405 includes linkingarm 40501 andjoint portion 40502,joint portion 40502 is connected withmain part 402 through linkingarm 40501, and be formed into electrically conductive row 5 male inserted hole betweenjoint portion 40502, when electrically conductive row 5 inserts, linkingarm 40501 can produce deformation, let electrically conductive row 5 get into smoothly, and after electrically conductive row 5 accomplishes the insertion operation, linkingarm 40501 can automatic re-setting, thereby realize electrically conductive row 5's joint and connect, and will electrically conductive row 5 welding on the battery cell, and with through locating hole andreference column 404 cooperation, thereby maketop cap 4 fix completely on electrically conductive row 5.

In addition, the fixingportion 401 includes:

thetie 40102 is positioned on the outer surface of theside wall 403 on one side of themain body part 402, thetie 40102 extends along the routing direction of theacquisition wire harness 3, and two ends of thetie 40102 are connected with theside wall 403 of themain body part 402 and form a through hole with theside wall 403; and

atie 40101, thetie 40101 passing through the through hole to secure thecollection harness 3 to theheader 4.

Based on the above embodiments, it is further explained that:

a notch is formed in theside wall 403 on one side of the integrated fixingpart 401, and extends along the length direction of the conductive bar 5 to pass through the notch to avoid the collectingpart 301;

a pair of connectingportions 405 is provided on theside wall 403 on the side of the fixingportion 401, and a gap is formed between the connectingportions 405 and theside wall 403.

Firstly, the gap of thetop cover 4 is arranged, and the top cover can avoid theacquisition part 301; the connectingportion 405 on one side of the fixingportion 401 can be directly connected to themain body portion 402, and the connectingportion 402 on the opposite side of thesidewall 403 needs to have a gap with a certain size at the connection portion of the connectingarm 40501 and thesidewall 403 in consideration of the problem of elastic deformation, so that the elastic deformation is realized through the gap, and the conductive bar 5 can be smoothly inserted.

The second embodiment discloses a battery pack with the battery module;

the method specifically comprises the following steps:

the battery pack is provided with a cable or a wiring harness, and the cable or the wiring harness extends along the length direction of the battery module;

the battery pack has two fixingportions 401;

a fixingportion 401 for fixing thecollection wire harness 3;

the other fixingportion 401 is used for fixing a cable or a wire harness.

In the above technical scheme, the battery module and the battery pack provided by the utility model have the following beneficial effects:

according to the battery module, thetop cover 4 is correspondingly arranged on each conductive bar 5, thetop cover 4 fixes thecollecting wire harness 3 through the fixingpart 401, the safety protection effect is improved, the production cost of the top covers 4 is lower than that of an integraltop cover 4, the cost is saved, an insulating plate does not need to be additionally arranged on thetop cover 4 to serve as protection, and the production cost is further reduced.

According to the battery module, thecollecting wire harness 3 is directly fixed on the top surface of the single battery by the fixingpart 401 on the side surface of thetop cover 4, and compared with the mode that thecollecting wire harness 3 is arranged on thetop cover 4 and an insulating plate is arranged in the prior art, the overall height of the battery module is reduced.

The battery pack is provided with two fixingparts 401, one fixing part is used for fixing the collectingwiring harness 3, and the other fixing part is used for fixing the cable or the wiring harness, so that the cable or the wiring harness is effectively prevented from crossing over an insulating plate in the prior art, and the internal height space of the battery pack is reduced.

While certain exemplary embodiments of the present invention have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that the described embodiments may be modified in various different ways without departing from the spirit and scope of the utility model. Accordingly, the drawings and description are illustrative in nature and should not be construed as limiting the scope of the utility model.

Claims (9)

1. Battery module, its characterized in that, this battery module includes:

the device comprises a shell (1), wherein an accommodating cavity is formed inside the shell (1);

a battery pack (2) integrated in the housing cavity, the battery pack (2) comprising a plurality of single cells;

a plurality of conductive bars (5), each conductive bar (5) being electrically connected to at least two of the unit cells; and

the top covers (4) correspond to the conductive bars (5) one by one, the top covers (4) are covered on the conductive bars (5), and the projection area of the top covers (4) along the height direction of the single batteries is not smaller than the projection area of the conductive bars (5);

the top cover (4) is connected with the conductive bar (5) in a clamping manner;

the top cover (4) is provided with a fixing part (401) on one side close to the collection wire harness (3), and the collection wire harness (3) is fixedly connected through the fixing part (401).

2. The battery module according to claim 1, wherein the top cover (4) comprises:

the main body part (402), the main body part (402) is covered on the conductive bar (5);

two groups of connecting parts (405) and one positioning column (404) are arranged on the main body part (402);

electrically conductive row (5) pass through reference column (404) location, just electrically conductive row (5) pass through connecting portion (405) with main part (402) joint is connected.

3. The battery module according to claim 2, wherein the body portion (402) is box-shaped, the inside of the box-shaped structure being formed to accommodate the conductive bars (5).

4. The battery module according to claim 2, wherein the conductive bar (5) has a protrusion (501) protruding toward the main body (402), and the protrusion (501) is provided with a positioning hole;

the two groups of connecting parts (405) are arranged at intervals along the width direction of the conductive bar (5), and each group of connecting parts (405) comprises two connecting parts (405) which are arranged at intervals along the length direction of the conductive bar (5);

the positioning column (404) is embedded in the positioning hole.

5. The battery module according to claim 4, characterized in that the collecting harness (3) has at least one collecting part (301);

the collecting part (301) is positioned on one surface of the conductive bar (5) facing the main body part (402) and between the corresponding connecting part (405) and the convex part (501).

6. The battery module according to claim 2, wherein the connection part (405) comprises:

a connecting arm (40501), one end of the connecting arm (40501) being connected to the main body portion (402); and

a clamping part (40502) connected to the end part of the connecting arm (40501) far away from one end of the main body part (402);

an insertion opening is formed between the two clamping parts (40502) symmetrically arranged along the width direction of the main body part (402), and the conductive bar (5) is inserted through the insertion opening and is connected with the connecting part (405) in a clamping mode.

7. The battery module according to claim 5, wherein the fixing portion (401) comprises:

the tie buckle (40102) is positioned on the outer surface of the side wall (403) on one side of the main body part (402), the tie buckle (40102) extends along the routing direction of the acquisition wiring harness (3), and two ends of the tie buckle (40102) are connected with the side wall (403) of the main body part (402) and form through holes with the side wall (403); and

a tie (40101), said tie (40101) passing through said through hole to secure said collection harness (3) to said header (4).

8. The battery module according to claim 7, wherein the side wall (403) integrating one side of the fixing portion (401) is formed with a notch extending in a length direction of the conductive bar (5) to escape from the collecting portion (301) therethrough;

a set of the connecting parts (405) is arranged on the side wall (403) opposite to the fixing part (401), and a gap is formed between the connecting parts (405) and the side wall (403).

9. A battery pack having a cable or a wire harness, wherein the cable or the wire harness extends in a length direction of the battery module according to any one of claims 1 to 8;

the battery pack has two fixing portions (401);

one of the fixing portions (401) is used for fixing the collecting wire harness (3);

the other fixing part (401) is used for fixing the cable or the wiring harness.

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