CN218731671U

CN218731671U - Collection assembly, battery module and battery system

Info

Publication number: CN218731671U
Application number: CN202222880325.6U
Authority: CN
Inventors: 兰韩
Original assignee: Hubei Eve Power Co Ltd
Current assignee: Hubei Eve Power Co Ltd
Priority date: 2022-10-31
Filing date: 2022-10-31
Publication date: 2023-03-24
Anticipated expiration: 2032-10-31
Also published as: WO2024092860A1

Abstract

The utility model relates to a power battery technical field discloses a gather subassembly, battery module and battery system. The collection assembly comprises an insulating piece, a bus bar, a collection wire harness and a collection wire harness. The bus bar is used for being electrically connected with the pole of the single battery; the bonding piece is arranged on the insulating piece and bonded between the bus bar and the insulating piece; gather the pencil and connect in the insulating part, gather the pencil including gathering line and connector, the one end of gathering the line is connected with the one side that the insulating part was kept away from to the busbar, and the other end and the connector electricity of gathering the line are connected. The utility model discloses simplify the structure of insulating part, reduction in production cost reduces the occupation space of collection subassembly in battery module, also improves the security and the durability of collection subassembly.

Description

Collection assembly, battery module and battery system

Technical Field

The utility model relates to a power battery technical field especially relates to a gather subassembly, battery module and battery system.

Background

All be provided with the collection subassembly in the battery module, the temperature and the voltage that the collection subassembly is used for gathering battery cell guarantee the safety in utilization of battery module. The collecting assembly generally includes an insulating support, a collecting line and a bus bar, wherein the bus bar is fixed on the insulating support, and the bus bar is connected with the poles of the single batteries and is used for connecting the single batteries in series. The end part of the collecting line for collecting the voltage is connected with the bus bar in a welding mode, the end part of the collecting line for collecting the temperature of the single batteries is connected with an NTC thermistor, and the NTC thermistor is connected with the bus bar and used for collecting the temperature of the single batteries.

In the prior art, a clamping groove for accommodating the busbar is formed in the insulating support, and a buckle is arranged at the clamping groove and used for fixing the busbar. Insulating support's structure is complicated, the processing of not being convenient for, and in order to fluting or processing buckle moreover, insulating support's thickness is thicker, occupies more space in the battery module, in addition, if the insulating support thickness of fluting department is too thin, when voltage is too big, also has insulating support by the possibility that electric arc punctures, reduces the security of battery module.

Accordingly, there is a need for a collection assembly, a battery module and a battery system to solve the above problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a gather subassembly, battery module and battery system to simplify the structure of insulating part, reduction in production cost reduces the occupation space of gathering the subassembly in the battery module, also improves the security and the durability of gathering the subassembly.

To achieve the purpose, the utility model adopts the following technical proposal:

an acquisition assembly, comprising:

an insulating member;

the bus bar is used for being electrically connected with the pole of the single battery;

the bonding piece is arranged on the insulating piece and is bonded between the bus bar and the insulating piece;

the collecting wire harness is connected with the insulating part and comprises a collecting wire and a connector, one end of the collecting wire is far away from one side of the insulating part through the bus bar and is connected with the other end of the collecting wire harness, and the other end of the collecting wire harness is electrically connected with the connector.

As an optional technical scheme of the acquisition assembly, an insulating protective layer covers the joint between the acquisition line and the bus bar.

As an optional technical scheme of the acquisition assembly, the insulating protection layer is bonded with the bus bar and the acquisition line.

As an optional technical scheme of the collection assembly, the collection assembly further comprises a fixing piece, the fixing piece comprises a first connecting portion and a second connecting portion, the second connecting portion is connected to the first connecting portion, the first connecting portion is connected to one side, close to the connector, of the collection line, and the second connecting portion is used for being fixedly connected with an end plate of a battery pack box body or a battery module.

As an optional technical scheme of the acquisition assembly, the acquisition wire harness further comprises a plurality of protective sleeves, and the protective sleeves are coated outside the plurality of acquisition wires.

As the optional technical scheme who gathers the subassembly, it includes two sets of busbar groups to gather the subassembly, every group the busbar group all includes at least two the busbar, the insulating part is provided with one respectively along width direction's both sides bond the piece, bond the piece and follow the length direction of insulating part extends, and is two sets of busbar group and two bond the piece one-to-one setting respectively, it is same in the busbar group all the busbar all corresponds to bond in same on the bonding piece.

As an optional technical scheme of the collecting assembly, a protruding portion is arranged on the edge of the bus bar in a protruding mode, and the collecting line is electrically connected with the protruding portion.

As an optional technical scheme of the collecting assembly, the collecting assembly comprises a binding belt, a binding belt hole is formed in the insulating piece, and the binding belt penetrates through the binding belt hole so as to bind the insulating piece on the collecting wire harness.

The utility model provides a battery module, includes battery cell and as above gather the subassembly, the busbar with battery cell's utmost point post electricity is connected.

A battery system comprises a BMS and the battery module, wherein the BMS is provided with a data slot, and a connector is inserted into the data slot.

The utility model has the advantages that:

the utility model provides a collection assembly, it includes insulating part, busbar, bonding piece and collection pencil, the busbar directly bonds with the insulating part through bonding piece and is connected, has simplified the structure of insulating part, has avoided setting up structures such as buckle, hole on the insulating part, does benefit to and reduces the thickness of insulating part, reduces the occupation space of collection assembly in the battery module, has just also reduced the volume of battery module, has more simplified the processing technology of insulating part, has also improved the machining efficiency of insulating part, has reduced the processing cost; meanwhile, the risk that the insulating part is broken down by electric arc due to the fact that the thickness of the insulating part at the slotting part is small is reduced, and the safety and the durability of the collecting assembly are improved; in addition, the collecting line is connected with one side of the bus bar far away from the insulating part, so that the insulating part can be prevented from being provided with a structure avoiding the collecting line, the structure of the insulating part is further simplified, and the production cost is reduced.

The utility model provides a battery module, it includes above-mentioned collection subassembly, and the occupation space of collection subassembly in battery module is less, does benefit to the volume that reduces battery module, has more simplified battery module's production process, has also improved battery module's production efficiency, has reduced manufacturing cost, has also improved battery module's safety in utilization.

The utility model provides a battery system, it includes above-mentioned battery module, does benefit to the volume that reduces battery system, has more simplified battery system's production process simultaneously, has also improved battery system's production efficiency, has reduced manufacturing cost, directly inserts the connector simultaneously and establishes in the data slot, has avoided utilizing other switching cable to connect between connector and data slot, further does benefit to reduce cost.

Drawings

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

fig. 2 is a schematic structural diagram of an acquisition assembly provided in an embodiment of the present invention;

FIG. 3 is an enlarged view of a portion of FIG. 2 at A;

fig. 4 is an exploded view of a collection assembly provided by an embodiment of the present invention.

In the figure:

10. a battery module; 20. a single battery; 30. an end plate;

1. an insulating member; 11. a hole is tied; 12. a through hole; 13. avoiding holes;

2. a bus bar; 2a, a serial bus; 2b, an output bus; 21. a projection;

3. an adhesive member;

4. collecting a wire harness; 4a, a branch wire harness; 41. collecting a line; 42. a connector; 43. a protective sleeve;

5. a second connecting portion; 6. a temperature acquisition member.

Detailed Description

In order to make the technical problem solved by the present invention, the technical solutions adopted by the present invention and the technical effects achieved by the present invention clearer, the following will be described in further detail with reference to the accompanying drawings, and obviously, the described embodiments are only some embodiments of the present invention, but not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by the skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, detachably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.

The present embodiment provides a battery module. Specifically, as shown in fig. 1, the battery module 10 includes a plurality of unit batteries 20 connected in series, and a collecting assembly for collecting the temperature and voltage of the unit batteries 20.

The embodiment also provides an acquisition assembly. Specifically, as shown in fig. 1 to 4, the collecting assembly includes an insulator 1, a bus bar 2, an adhesive member 3, and a collecting harness 4. The bus bar 2 is used for being electrically connected with the pole of the single battery; the adhesive piece 3 is arranged on the insulating piece 1, and the adhesive piece 3 is adhered between the bus bar 2 and the insulating piece 1; gather pencil 4 and connect in insulator 1, gather pencil 4 and include gathering line 41 and connector 42, gather the one end of line 41 and be connected with the one side that insulator 1 was kept away from to busbar 2, gather the other end and the connector 42 electricity of line 41 and be connected.

The collecting assembly provided by the embodiment comprises an insulating piece 1, a bus bar 2, a bonding piece 3 and a collecting wire harness 4, wherein the bus bar 2 is directly bonded with the insulating piece 1 through the bonding piece 3, so that the connection structure between the bus bar 2 and the insulating piece 1 is simplified, the arrangement of structures such as buckles and holes on the insulating piece 1 is avoided, the reduction of the thickness of the insulating piece 1 is facilitated, the occupied space of the collecting assembly in a battery module 10 is reduced, the size of the battery module 10 is reduced, the processing technology of the insulating piece 1 is simplified, the processing efficiency of the insulating piece 1 is improved, and the processing cost is reduced; meanwhile, the risk that the insulating part 1 is broken down by electric arc due to the fact that the thickness of the groove of the insulating part 1 is small is reduced, and the safety and the durability of the collecting assembly are improved; in addition, the collecting line 41 is connected with one side of the bus bar 2 far away from the insulating part 1, so that the insulating part 1 can be prevented from being provided with a structure avoiding the collecting line 41, the structure of the insulating part 1 is further simplified, and the production cost is reduced.

The battery module that this embodiment provided, it includes above-mentioned collection subassembly, and the occupation space of collection subassembly in battery module 10 is less, does benefit to the volume that reduces battery module 10, has simplified battery module 10's production process simultaneously, has also improved battery module 10's production efficiency, has reduced manufacturing cost, has also improved battery module 10's safety in utilization.

The insulating part 1 is made of a PC material, the insulating part 1 is of a rectangular membrane structure, the thickness is 0.5mm +/-0.05 mm, the thickness is small, and the occupied space of the collecting assembly in the battery module 10 is further reduced. In other embodiments, the insulating member 1 may be made of other insulating materials, and the shape and size thereof may be adjusted adaptively, which is not limited herein.

Preferably, busbar 2 and collection pencil 4 all lie in the same one side of insulating part 1, are convenient for realize being connected between busbar 2 and the collection line 41, have reduced the quantity of digging the hole on insulating part 1 simultaneously, have simplified the processing technology of insulating part 1, can set up towards battery cell 20 with insulating part 1 back to one side of busbar 2 and collection pencil 4 again, avoid gathering pencil 4 or busbar 2 and battery cell 20 contact short circuit, guarantee battery module 10's security.

In the present embodiment, the bus bar 2 is in a sheet shape and made of a metal material, preferably an aluminum material or a copper material. The bus bar 2 includes a series bus bar 2a and an output bus bar 2b. Since a plurality of cells 20 are usually provided in each battery module 10, a plurality of serial bus bars 2a are also provided, and the plurality of cells 20 are connected in series by the plurality of serial bus bars 2a. The two output bus bars 2b are provided, and the two output bus bars 2b are respectively provided at both ends of the plurality of unit batteries 20 connected in series for supplying power to the outside of the battery module 10. The number of the bus bars 2 may be adaptively adjusted according to the number of the unit batteries 20 in the battery module 10, and is not limited herein.

A plurality of unit cells 20 are arranged along the length direction of the insulating member 1. Two utmost points of every battery cell 20 all set up in battery cell 20 towards one side of insulating part 1, and two utmost points of every battery cell 20 set up along the width direction interval of insulating part 1, and two utmost points of two adjacent battery cells 20 just set up one by one for whole battery cell 20's utmost point post is arranged and is two sets of. In each group of the poles, the positive poles and the negative poles are alternately arranged. Therefore, the collection assembly comprises two sets of bus bars, each set of bus bars comprises at least one serial bus bar 2a and at least one output bus bar 2b, and the two sets of bus bars are respectively arranged corresponding to the two sets of poles.

Preferably, insulating part 1 is provided with one respectively along width direction's both sides and bonds 3, it extends along insulating part 1's length direction to bond 3, two sets of busbar groups set up with two bonding 3 one-to-one respectively, all busbar 2 in the same busbar group all bond on rather than corresponding same bonding 3, compare in every busbar 2 and all correspond and set up a bonding 3, it connects in insulating part 1 to have avoided bonding 3 one by one, do benefit to the connection process of simplifying between bonding 3 and the insulating part 1, further do benefit to the production process of simplifying the collection subassembly, and the production efficiency is improved.

In the present embodiment, the adhesive member 3 is a TESA7805 black acrylic foam double-sided tape. In other embodiments, the adhesive member 3 may also be a common double-sided tape or an insulating tape made of other materials, which is not limited herein.

Specifically, two sets of through holes 12 have been seted up on insulating part 1, and two sets of through holes 12 are arranged along the width direction interval of insulating part 1, and two sets of through holes 12 correspond the setting with two sets of busbar groups respectively. Each group of through holes 12 comprises a plurality of through holes 12 arranged along the length direction of the insulating part 1, and each pole column penetrates through one through hole 12 to be connected with the bus bar 2 in a welding mode.

Further, the insulation member 1 is provided with a plurality of avoiding holes 13, the avoiding holes 13 are arranged along the length direction of the insulation member 1 at intervals, and the plurality of avoiding holes 13 are arranged opposite to the explosion-proof valves of the plurality of single batteries 20 one by one, so that the safety of the battery module 10 is ensured.

Preferably, the acquisition strands 4 comprise two branch strands 4a, both branch strands 4a comprising a plurality of acquisition wires 41. The two branch harnesses 4a are connected to the two bus bar groups, respectively. Two branch pencil 4a set up respectively in the both sides of dodging hole 13, further avoid gathering pencil 4 and shelter from dodging hole 13, further guarantee the security.

Specifically, the plurality of collecting wires 41 are wound and fixed by an insulating tape to form the branch harness 4a. The branch harness 4a extends in the longitudinal direction of the insulator 1. The collection harness 4 includes two connectors 42, the two connectors 42 are respectively connected to all the collection lines 41 in the two branch harnesses 4a, and the connectors 42 are connected to the same end of all the collection lines 41 in the corresponding branch harnesses 4a.

Preferably, the collection assembly comprises a cable tie, the insulating part 1 is provided with a cable tie hole 11, and the cable tie penetrates through the cable tie hole 11 to tie the collection cable harness 4 on the insulating part 1, so that the connection mode between the collection cable harness 4 and the insulating part 1 is simplified, the production and the processing are convenient, the collection cable harness 4 is prevented from being fixed on the insulating part 1 by a buckle, and the reduction of the thickness of the insulating part 1 is facilitated. In the present embodiment, each of the branch harnesses 4a is bound to the insulator 1 by a plurality of straps.

Specifically, the collection lines 41 within the collection harness 4 are divided into two types, one type of collection line 41 for collecting voltage is set as a voltage collection line, and the other type of collection line 41 for collecting temperature is set as a temperature collection line. Wherein, the voltage acquisition line is provided with many, and the temperature acquisition line is provided with a plurality of. Each bus bar 2 is correspondingly connected with a voltage collecting wire. The temperature acquisition line can be according to temperature acquisition demand adjustment quantity, and in this embodiment, the temperature acquisition line is provided with three, connects in wherein three series connection busbar 2a in the one-to-one correspondence respectively.

In this embodiment, collection line 41 is 0.35mm2's electric wire, collection line 41 includes the copper line and the cladding is at the outside insulating cover of copper line, can avoid utilizing FPC or FFC to realize gathering voltage and temperature, the electric wire is convenient for process, do benefit to and improve production efficiency, and FPC and FFC are the structure of platyzing, it occupies great space on the width direction of insulating part 1, it sets up collection line 41 and also can dwindle collection pencil 4 to the space occupation on insulating part 1 to the electric wire, leave enough spaces that are used for setting up other structures on insulating part 1, further simplify the production process. The end part of the voltage collecting wire connected with the bus bar 2 is set as a bare wire head, and the bare wire head is a bare copper wire section with an insulation sleeve removed. The end connection of temperature collection line has temperature collection piece 6, and temperature collection piece 6 is connected on busbar 2, can gather busbar 2's temperature. Further, the temperature collecting member 6 is an NTC thermistor directly electrically connected to the copper wire of the collecting wire 41, and the temperature collecting member 6 is bonded to the bus bar 2.

Preferably, the edge of the bus bar 2 is provided with a protruding portion 21 in a protruding manner, and the collecting line 41 is electrically connected with the protruding portion 21. Through the setting of bulge 21, can confirm the hookup location of gathering line 41 and busbar 2, the production and processing of the subassembly of being convenient for gathers does benefit to the manufacturing cost who reduces collection subassembly and battery module 10.

In the present embodiment, the projection 21 is integrally formed with the bus bar 2. All be provided with bulge 21 on every series connection busbar 2a, bulge 21 only with voltage acquisition line welded connection, every series connection busbar 2 a's structure homogeneous phase promptly, the manufacturing and processing of being convenient for. In other embodiments, the bus bar 2 may also be provided with a protrusion 21 for connecting with the temperature collection member 6, which is not limited herein.

Preferably, the connection between the collecting line 41 and the bus bar 2 is covered with an insulating protective layer. The insulating protective layer plays a role in protecting the connection part, the possibility that the connection part between the acquisition line 41 and the bus bar 2 is damaged is reduced, the durability of the acquisition assembly is ensured, and the risk of short circuit of the acquisition line 41 is also reduced.

Specifically, for the voltage collecting wire, an insulating protective layer covers the welding of the bare wire head and the bus bar 2; for the temperature-collecting member 6, an insulating protective layer covers the junction of the temperature-collecting member 6 and the bus bar 2.

Furtherly, insulating protective layer and busbar 2 and collection line 41 all bond, and insulating protective layer possesses the bonding effect simultaneously, can avoid gathering and break away from between line 41 and the busbar 2, guarantees to gather the reliable voltage and the temperature of gathering battery cell 20 of subassembly, has improved battery module 10's safety in utilization, and insulating protective layer also can directly play simultaneously and fixes the effect on busbar 2 with temperature collection piece 6, has further simplified the production process of gathering the subassembly.

In this embodiment, the insulating protection layer is a curable insulating glue. Preferably, the insulating protective layer is UV glue. In other embodiments, the insulating protection layer may also be made of other materials, which is not limited herein.

Preferably, gather pencil 4 and still include protective sheath 43, gather line 41 and be provided with many, protective sheath 43 cladding is outside many gathering lines 41, and protective sheath 43 can avoid gathering line 41 and damage, has guaranteed the durable degree of gathering the subassembly.

Specifically, the plurality of collecting wires 41 are wound and fixed by an insulating tape to form the branch harness 4a. The branch harnesses 4a extend along the length direction of the insulating member 1, and the protective sleeve 43 covers one ends of the two branch harnesses 4a connected to the connector 42, so that the two branch harnesses 4a are combined into one collecting harness 4.

In the present embodiment, an insulating tape is wound around the outside of the two branch harnesses 4a to form the protective sheaths 43. In other embodiments, the protective sheath 43 may also be a rubber sheath or a heat shrinkable tube, which is not limited herein.

In the prior art, the insulator 1 of the collecting assembly is usually fixed in the battery module 10, and the battery module 10 is usually fixedly arranged in a battery pack box of a vehicle. Preferably, the collecting assembly further comprises a fixing member, the fixing member comprises a first connecting portion and a second connecting portion 5, the first connecting portion is connected to one side of the collecting line 41 close to the connector 42, the second connecting portion 5 is connected to the first connecting portion, and the second connecting portion 5 is used for being fixedly connected with the end plate 30 of the battery pack box or the battery module 10. Above-mentioned setting, can be fixed with the exterior structure with collection pencil 4, when electric vehicle operation in-process, the battery package receives the vibration, battery module 10 and insulator 1 are along with battery package synchronous oscillation, the mounting can fix the position of gathering line 41 this moment, make it and insulator 1 static relatively, avoided gathering the junction between line 41 and the busbar 2 and pulled, guarantee to gather the voltage and the temperature that the subassembly can reliably gather battery cell 20, the safety in utilization of battery module 10 has been improved.

In the present embodiment, two fixing members are provided, wherein the second connecting portion 5 of one fixing member is used for connecting with the end plate 30 of the battery module 10, and the second connecting portion 5 of the other fixing member is used for fixing with a rib plate in the battery pack case.

Specifically, the mounting sets up to the buckle ribbon, and first connecting portion are the ribbon, and second connecting portion are the buckle, the structure adaptability adjustment of buckle. Illustratively, the fixing member for fixing with the end plate 30 is a halman 156-00634 type cable tie, and the end plate 30 is provided with a clamping hole, and the buckle can be clamped in the clamping hole. A mounting for with the gusset fixed sets up to halman 156-00615 model ribbon, and the buckle can the joint on the gusset.

The embodiment also provides a battery system. Specifically, the Battery System includes a BMS (Battery Management System) and the Battery module 10 as described above, the BMS having the data slot in which the connector 42 is inserted.

The battery system that this embodiment provided, it includes above-mentioned battery module 10, does benefit to the volume that reduces battery system, has more simplified battery system's production process simultaneously, has also improved battery system's production efficiency, has reduced manufacturing cost, directly inserts connector 42 simultaneously and establishes in the data slot, has avoided utilizing other adapter cables to connect between connector 42 and data slot, further does benefit to reduce cost.

In other embodiments, if the distance between the battery module 10 and the BMS is excessively large, a patch cable may be disposed between the connector 42 and the data slot, which is not limited herein.

In this embodiment, a fuse should be disposed on the BMS to ensure the safety of the battery module 10.

It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. Gather the subassembly, its characterized in that includes:

an insulator (1);

the bus bar (2) is used for being electrically connected with the pole of the single battery;

the bonding piece (3) is arranged on the insulating piece (1), and the bonding piece (3) is bonded between the bus bar (2) and the insulating piece (1);

gather pencil (4), connect in insulator (1), gather pencil (4) including gathering line (41) and connector (42), the one end of gathering line (41) with busbar (2) is kept away from one side of insulator (1) is connected, the other end of gathering line (41) with connector (42) electricity is connected.

2. Collection assembly according to claim 1, wherein the junction between the collection wire (41) and the busbar (2) is covered with an insulating protective layer.

3. Collection assembly according to claim 2, wherein the insulating protective layer is bonded to both the busbar (2) and the collection wire (41).

4. The collecting assembly according to any one of claims 1-3, further comprising a fixing member, wherein the fixing member comprises a first connecting portion and a second connecting portion (5), the second connecting portion (5) is connected to the first connecting portion, the first connecting portion is connected to the collecting wire (41) at a side close to the connector (42), and the second connecting portion (5) is used for being fixedly connected with an end plate (30) of a battery pack case or a battery module.

5. An acquisition assembly according to any one of claims 1 to 3, characterized in that said acquisition harness (4) further comprises a protective sheath (43), said acquisition wires (41) being provided with a plurality, said protective sheath (43) being externally coated on a plurality of said acquisition wires (41).

6. The collecting assembly according to any one of claims 1 to 3, wherein the collecting assembly comprises two sets of bus bars, each set of bus bars comprises at least two bus bars (2), one bonding member (3) is respectively arranged on both sides of the insulating member (1) in the width direction, the bonding members (3) extend along the length direction of the insulating member (1), the two sets of bus bars and the two bonding members (3) are respectively arranged in a one-to-one correspondence manner, and all the bus bars (2) in the same set of bus bars are correspondingly bonded on the same bonding member (3).

7. Assembly according to any one of claims 1 to 3, characterized in that the edge of the busbar (2) is provided convexly with a projection (21), the collection wire (41) being electrically connected to the projection (21).

8. A collection assembly according to any of claims 1 to 3, comprising a tie, the insulation (1) having a tie hole (11) formed therein, the tie passing through the tie hole (11) to tie the collection harness (4) to the insulation (1).

9. Battery module, characterized in that it comprises a single battery (20) and a collecting assembly according to any one of claims 1 to 8, the busbar (2) being electrically connected to the poles of the single battery (20).

10. The battery system, comprising a BMS on which a data slot is provided, and the battery module according to claim 9, wherein the connector (42) is inserted into the data slot.