CN219717133U - Battery module and battery pack - Google Patents

Abstract

The utility model provides a battery module and a battery pack, wherein the battery module comprises: the bus bar comprises a first side beam, a second side beam, a bus bar and a first fixing bracket, wherein the first side beam and the second side beam extend along a first direction; the first fixing support comprises a first limiting portion and a first fixing portion which are integrally formed, the first limiting portion is sleeved on the periphery of the busbar, and the first fixing portion is arranged on one side of the first limiting portion facing the third direction and is fixed on the surface of one side of the first side beam facing the third direction. In the battery module and the battery pack provided by the utility model, the limiting part sleeved on the periphery of the bus bar can limit the bus bar in the transverse and longitudinal directions, and the first fixing part is fixed on the surface of one side of the first side beam facing the third direction, so that the first fixing support and the first side beam can be assembled and fixed in the longitudinal direction, the assembly space is saved, the assembly efficiency is improved, and the assembly difficulty is 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

In recent years, with the increasing importance of people on environmental protection and the rapid development of new energy industries, power batteries are rapidly popularized from electric automobiles to the fields of rail transit, ship shipping, industrial wharfs, warehouse transportation, household power supplies and the like.

In order to achieve the maximum energy output of the battery, the battery is mostly used for supplying energy in a battery pack mode nowadays. The battery module in the battery pack contains numerous structural components, such as the busbar, in the busbar assembly process, need be right the busbar is fixed, at present generally through the mode that the ribbon binded fix the busbar, the fixed mode that the ribbon binded needs to reserve the operating space of being convenient for carry out the ribbon of binding, but because the inner space of battery pack is limited for the busbar has the problem of fixed difficulty, battery module assembly inefficiency, and this problem needs to be solved urgently.

Disclosure of Invention

The embodiment of the utility model provides a battery module and a battery pack, which can solve the technical problems of difficult fixation of a bus bar and low assembly efficiency of the battery module.

In a first aspect, an embodiment of the present utility model provides a battery module including: a first side rail extending in a first direction; the second side beam extends along the first direction and is positioned at one side of the first side beam towards the second direction, wherein the second direction is perpendicular to the first direction; the busbar is arranged between the first side beam and the second side beam; the first fixing bracket is fixedly connected with the first side beam and the busbar; the first fixing support comprises a first limiting portion and a first fixing portion which are integrally formed, the first limiting portion is sleeved on the periphery of the busbar, the first fixing portion is arranged on one side, facing the third direction, of the first limiting portion, and the first fixing portion is fixed on the surface, facing one side, facing the third direction, of the first side beam, and the third direction is perpendicular to the first direction and the second direction.

In an embodiment, the first limiting portion includes: the bottom wall is connected with the two side walls, and the top wall is connected with one side wall; the bottom wall, the top wall and the two side walls are respectively abutted with the bus bars.

In an embodiment, a side wall closest to the first side rail of the two side walls is connected to the first fixing portion, wherein the first fixing portion is parallel to a surface of a side of the first side rail facing the third direction, and the first fixing portion includes a first portion attached to the surface of the side of the first side rail facing the third direction.

In an embodiment, the bus bars include a first bus bar and a second bus bar, a perpendicular projection of the first bus bar on a plane defined by the first direction and the third direction being non-coincident with a perpendicular projection of the second bus bar on a plane defined by the first direction and the third direction.

In an embodiment, the battery module further includes: the battery pack is arranged between the first side beam and the second side beam; the information acquisition subassembly sets up first boundary beam with between the second boundary beam, and be located the group battery orientation one side of third direction, the information acquisition subassembly includes: a first output electrode and a second output electrode; the first bus bar is arranged between the first side beam and the battery pack, the second bus bar is arranged between the first side beam and the battery pack, the first output electrode and the second output electrode are both arranged on the edge of the information acquisition assembly, which faces the first side beam, the first bus bar is electrically connected with the first output electrode through a first bending part, the second bus bar is electrically connected with the second output electrode through a second bending part, and the extending direction of the first bending part and the extending direction of the second bending part are in the third direction.

In an embodiment, the first bending portion is welded to the first bus bar, and the second bending portion is welded to the second bus bar.

In an embodiment, the information acquisition assembly further comprises: the signal acquisition connector is arranged on the edge of the information acquisition assembly, which faces the second boundary beam.

In an embodiment, the battery module further includes: the management system is used for monitoring the state of the battery pack, and is electrically connected with the signal acquisition connector, wherein the management system is arranged on one side, close to the second boundary beam, of the battery pack.

In an embodiment, the battery module further includes: the second fixing bracket is fixedly connected with the second side beam and the management system; the second fixing support comprises a second limiting portion and a second fixing portion, the second fixing portion is fixed on the surface of one side, facing the third direction, of the second side beam, the second limiting portion is provided with a containing space, and the management system is arranged in the containing space.

In a second aspect, embodiments of the present utility model provide a battery pack comprising at least one battery module as described in any one of the above.

The embodiment of the utility model has the beneficial effects that:

the utility model provides a battery module and a battery pack, wherein the battery module comprises: a first side rail extending in a first direction; the second side beam extends along the first direction and is positioned at one side of the first side beam towards the second direction, wherein the second direction is perpendicular to the first direction; the busbar is arranged between the first side beam and the second side beam; the first fixing bracket is fixedly connected with the first side beam and the busbar; the first fixing support comprises a first limiting portion and a first fixing portion which are integrally formed, the first limiting portion is sleeved on the periphery of the busbar, the first fixing portion is arranged on one side, facing the third direction, of the first limiting portion, and the first fixing portion is fixed on the surface, facing one side, facing the third direction, of the first side beam, and the third direction is perpendicular to the first direction and the second direction. In the battery module and the battery pack provided by the utility model, the limiting part sleeved on the periphery of the bus bar can limit the bus bar in the transverse and longitudinal directions, and the first fixing part is fixed on the surface of one side of the first side beam facing the third direction, so that the first fixing support and the first side beam can be assembled and fixed in the longitudinal direction, the assembly space is saved, the assembly efficiency is improved, and the assembly difficulty is reduced.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the description of the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a perspective view of a battery module according to an embodiment of the present utility model;

fig. 2 is a schematic top view of a battery module according to an embodiment of the present utility model;

fig. 3 is a schematic structural view of a first fixing bracket according to an embodiment of the present utility model;

fig. 4 is an assembly schematic diagram of a first fixing bracket and a second bus bar according to an embodiment of the utility model;

FIG. 5 is a schematic diagram illustrating connection between a first bus and a first output electrode, and between a second bus and a second output electrode according to an embodiment of the present utility model;

fig. 6 is a schematic structural diagram of a second fixing bracket according to an embodiment of the present utility model.

Reference numerals illustrate:

a battery module 01; a first side sill 10; a first surface 11; a first side 12; a busbar 20; a first bus bar 21; a second bus bar 22; a first fixing bracket 30; a first stopper 31; a bottom wall 311; a top wall 312; a sidewall 313; a first end 3131; a first fixing portion 32; a first portion 321; a battery pack 40; an information acquisition component 50; a first output electrode 51; a first bending part 511; a second output electrode 52; a second bent portion 521; a signal acquisition connector 53; a second side rail 60; a second surface 61; a management system 70; a second fixing bracket 80; a second limit portion 81; the accommodating space 810; a bottom plate 811; a side plate 812; a second fixing portion 82; a busbar connector 90; a battery pack disconnection unit 100; a first direction X; a second direction Y; a third direction Z;

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to fall within the scope of the utility model. Furthermore, it should be understood that the detailed description is presented herein for purposes of illustration and description only, and is not intended to limit the utility model. In the present utility model, unless otherwise indicated, terms of orientation such as "upper" and "lower" are used to generally refer to the upper and lower positions of the device in actual use or operation, and specifically the orientation of the drawing figures; while "inner" and "outer" are for the outline of the device.

Fig. 1 is a perspective view of a battery module according to an embodiment of the present utility model; fig. 2 is a schematic top view of a battery module according to an embodiment of the present utility model. Referring to fig. 1 and 2, in a first aspect, an embodiment of the present utility model provides a battery module 01, the battery module 01 including: a first side sill 10 extending in a first direction X; a second side sill 60 extending in the first direction X and located at a side of the first side sill 10 toward the second direction Y, wherein the second direction Y is perpendicular to the first direction X; a busbar 20 disposed between the first side rail 10 and the second side rail 60; a first fixing bracket 30 fixedly connecting the first side rail 10 and the bus bar 20; the first fixing bracket 30 includes a first limiting portion 31 and a first fixing portion 32 that are integrally formed, the first limiting portion 31 is sleeved on the periphery of the busbar 20, the first fixing portion 32 is disposed on one side of the first limiting portion 31 facing the third direction Z, and the first fixing portion 32 is fixed on the surface of one side of the first side beam 10 facing the third direction Z, where the third direction Z is perpendicular to the first direction X and the second direction Y.

Specifically, the first direction X and the second direction Y are transverse directions (or called horizontal directions), the third direction Z is longitudinal directions (or called vertical directions), the surface of the first side beam 10 facing to one side of the third direction Z is a first surface 11, and the plane defined by the first direction X and the third direction Z is the first side 12.

In the battery module 01 provided by the utility model, the limiting part sleeved on the periphery of the busbar 20 can limit the busbar 20 in the transverse and longitudinal directions, so that the fixing effect of the busbar 20 can be ensured, the busbar 20 is prevented from shifting in the transverse and longitudinal directions, and the safety performance of the battery module 01 is improved. Moreover, since the first fixing portion 32 is disposed on the side of the first limiting portion 31 facing the third direction Z, and the first fixing portion 32 is fixed on the surface of the side of the first side beam 10 facing the third direction Z, the first fixing bracket 30 and the first side beam 10 can be assembled and fixed in the longitudinal direction, so that the assembly space is saved, the assembly efficiency is improved, and the assembly difficulty is reduced while the fixing effect is ensured.

Fig. 3 is a schematic structural view of a first fixing bracket according to an embodiment of the present utility model; fig. 4 is an assembly schematic diagram of a first fixing bracket and a second bus bar according to an embodiment of the utility model. As shown in fig. 1 to 4, in some embodiments of the present utility model, the first limiting portion 31 includes: a bottom wall 311 and a top wall 312 arranged in parallel, and two side walls 313 arranged in parallel, wherein the bottom wall 311 connects the two side walls 313, and the top wall 312 connects one of the side walls 313; wherein the bottom wall 311, the top wall 312, and the two side walls 313 are respectively abutted against the busbar 20.

In the battery module 01 provided by the utility model, the bottom wall 311 and the top wall 312 of the first limiting part 31 are respectively abutted against the busbar 20, so that the busbar 20 can be limited in the longitudinal direction; since the two side walls 313 of the first stopper 31 are respectively abutted against the bus bar 20, the bus bar 20 can be stopped in the lateral direction.

Also, since the top wall 312 is connected to one of the side walls 313, that is, the top wall 312 is not connected to the other side wall 313, it is possible to provide an opening between the top wall 312 and the unconnected side wall 313, which can be enlarged by manual or mechanical adjustment, to facilitate the installation of the busbar 20. Optionally, the side wall 313 connected to the top wall 312 can be rotated relative to the side wall 313 to enlarge the opening. Optionally, a locking portion (not shown) is provided on the side wall 313 not connected to the top wall 312, where the locking portion is used to ensure the relative fixation between the top wall 312 and the unconnected side wall 313 after the busbar 20 is installed.

Further, two of the side walls 313 are defined herein as a first side wall and a second side wall, wherein the top wall 312 is connected to the first side wall and not connected to the second side wall, wherein the perpendicular projection of the top wall 312 on the plane of the first side 12 does not overlap with the perpendicular projection of the second side wall on the plane of the first side 12.

In the battery module 01 provided by the utility model, since the vertical projection of the top wall 312 on the plane of the first side 12 is not overlapped with the vertical projection of the second side wall on the plane of the first side 12, the top wall 312 and the second side wall are arranged in a staggered manner in the direction perpendicular to the plane of the first side 12, so that when the opening between the top wall 312 and the second side wall is manually or mechanically adjusted, interference between the top wall 312 and the second side wall is not generated, the opening can be more conveniently enlarged, and the improvement of the assembly efficiency of the battery module 01 is facilitated.

In some embodiments of the present utility model, the first fixing bracket 30 may be formed by bending and forming a plurality of times by a sheet metal process, so as to form the bottom wall 311 and the top wall 312 of the first fixing portion 32 and the first limiting portion 31, and two opposite side walls 313. Optionally, a side wall 313 farthest from the first side rail 10 of the two side walls 313 is connected to the side wall 313; an opening exists between the side wall 313 closest to the first side sill 10 and the top wall 312 of the two side walls 313, and is connected to the first fixing portion 32. It should be noted that the molding process of the first fixing bracket 30 is not limited in the present utility model, and in other embodiments of the present utility model, the first fixing bracket 30 may be molded by an injection molding process.

It should be noted that, in other embodiments of the present utility model, the top wall 312 may be connected to two side walls 313, so that the bottom wall 311, the top wall 312, and the two side walls 313 form a closed structure. The assembly flow corresponding to the structure is as follows: the first limiting portion 31 of the first fixing bracket 30 is first sleeved on the periphery of the busbar 20, then the busbar 20 is assembled into the battery module 01, and the first fixing portion 32 of the first fixing bracket 30 is fixed on the first surface 11 of the first side beam 10.

In some embodiments of the present utility model, the 10 side wall 313 closest to the first side rail is connected to the first fixing portion 32, wherein the first fixing portion 32 is parallel to a surface of the first side rail 10 facing the third direction Z (i.e., the first surface 11), and the first fixing portion 32 includes a first portion 321 attached to a surface of the first side rail 10 facing the third direction Z.

In the battery module 01 provided by the utility model, since the 10 side wall 313 closest to the first side beam of the two side walls 313 is connected with the first fixing part 32, the extension length of the first fixing part 32 can be shortened, and materials can be saved; also, since the first fixing portion 32 is parallel to the surface of the first side rail 10 facing the side in the third direction Z, and the first portion 321 of the first fixing portion 32 is closely attached to the surface of the first side rail 10 facing the side in the third direction Z, the assembling stability of the first fixing portion 32 and the first surface 11 is further improved.

Illustratively, in this embodiment, the first fixing portion 32 includes the first portion 321 that is attached to the first surface 11, and other portions that are not attached to the first surface 11, where the side wall 313 closest to the first side rail 10 of the two side walls 313 is spaced from the first side rail 10. Of course, in other embodiments of the present utility model, the side wall 313 closest to the first side rail 10 of the two side walls 313 may be attached to the first side rail 10, so as to maximize the area of the first portion 321, thereby further improving the assembly stability of the first fixing portion 32.

Optionally, a through hole is provided on the first fixing portion 32, and the first fixing portion 32 is fixedly connected with the first side beam 10 through welding, threaded connection, and rivet riveting. Of course, the fixing connection manner of the first fixing portion 32 and the first side rail 10 is not limited in the present utility model, and in other embodiments of the present utility model, the first fixing portion 32 and the first side rail 10 may be fixedly connected by other fixing manners such as a snap-fit fixing.

Fig. 5 is a schematic diagram illustrating connection between a first bus bar and a first output electrode, and connection between a second bus bar and a second output electrode according to an embodiment of the present utility model. As shown in fig. 1-5, in some embodiments of the present utility model, the bus bar 20 includes a first bus bar 21 and a second bus bar 22, where the first bus bar 21 is fixedly connected to the first side sill 10 by at least one first fixing bracket 30; the second busbar 22 is fixedly connected to the first side rail 10 by at least one first fixing bracket 30.

In some embodiments of the present utility model, the perpendicular projection of the first busbar 21 on the plane defined by the first direction X and the third direction Z is not coincident with the perpendicular projection of the second busbar 22 on the plane defined by the first direction X and the third direction Z, that is, the perpendicular projections of the first busbar 21 and the second busbar 22 on the plane of the first side 12 are arranged in a staggered manner.

In the battery module 01 provided by the utility model, since the orthographic projections of the first busbar 21 and the second busbar 22 on the plane where the first side 12 is located are arranged in a staggered manner, structural interference is not generated when the first busbar 21 and the second busbar 22 are fixedly connected with the first side beam 10, so that the fixed connection with the first side beam 10 can be synchronously realized, and the assembly efficiency is improved.

In some embodiments of the present utility model, the battery module 01 further includes: a battery pack 40 and an information collection assembly 50, wherein the battery pack 40 includes a plurality of battery cells, the battery pack 40 is disposed between the first side rail 10 and the second side rail 60 and is located at a side of the bus bar 20 away from the first side rail 10, and a vertical projection of the bus bar 20 on the first side 12 overlaps a vertical projection of the battery pack 40 on the first side 12; the information collecting assembly 50 is disposed between the first side rail 10 and the second side rail 60 and located at a side of the battery pack 40 facing the third direction Z, and the information collecting assembly 50 includes: the battery pack comprises a plurality of battery cells connected in series, a plurality of battery cells connected in parallel, an information acquisition piece for acquiring voltage and temperature information of the battery cells, and a first output pole 51 and a second output pole 52, wherein one of the first output pole 51 and the second output pole 52 is a positive output pole, and the other of the first output pole 51 and the second output pole 52 is a negative output pole.

The first busbar 21 is located between the battery pack 40 and the first side beam 10, the second busbar 22 is located between the battery pack 40 and the first side beam 10, the first output electrode 51 and the second output electrode 52 are both disposed on the edge of the information collecting assembly 50 facing the first side beam 10, that is, the first output electrode 51 and the second output electrode 52 are disposed on the same side, so that a connection structure for connecting the first output electrode 51 and the first busbar 21 is disposed on the same side as a connection structure for connecting the second output electrode 52 and the second busbar 22, an assembly structure of the battery module 01 is simplified, and assembly efficiency is improved.

Further, the connection structure connecting the first output electrode 51 and the first bus bar 21 is a first bending portion 511, the connection structure connecting the second output electrode 52 and the second bus bar 22 is a second bending portion 521, the first bus bar 21 is electrically connected with the first output electrode 51 through the first bending portion 511, the second bus bar 22 is electrically connected with the second output electrode 52 through the second bending portion 521, and the extending direction of the first bending portion 511 and the second bending portion 521 is the third direction Z.

In the battery module 01 provided by the utility model, since the extending direction of the first bending portion 511 and the second bending portion 521 is the third direction Z, that is, the first bending portion 511 and the second bending portion 521 extend in the longitudinal direction and are not higher than the surface of the information collecting component 50 on the side far away from the battery pack 40, the first bending portion 511 and the second bending portion 521 can use the existing space in the longitudinal direction to complete the electrical connection between the first output electrode 51 and the first bus bar 21 and the second output electrode 52 and the second bus bar 22, and the space utilization rate of the battery module 01 can be improved.

In some embodiments of the present utility model, the first bending part 511 and the second bending part 521 have the same extension length in the direction in which the information collecting assembly 50 faces the battery pack 40.

In the battery module 01 provided by the utility model, the extension lengths of the first bending part 511 and the second bending part 521 are the same, so that the first bending part 511 and the second bending part 521 can be manufactured with the same specification, which is convenient for manufacturing the information acquisition assembly 50 and is beneficial to reducing the manufacturing cost.

In some embodiments of the present utility model, the first bending portion 511 is welded to the first busbar 21 and is integrally formed with the first output electrode 51; the second bending portion 521 is welded to the second busbar 22, and is integrally formed with the second output electrode 52.

In the battery module 01 provided by the utility model, the first bending part 511 is welded and fixed with the first busbar 21, and the second bending part 521 is welded and fixed with the second busbar 22, so that the problem of increased assembly parts caused by bolt and rivet fixation can be avoided, and the assembly efficiency is improved.

Further, since the perpendicular projection of the first bus bar 21 on the plane defined by the first direction X and the third direction Z is not overlapped with the perpendicular projection of the second bus bar 22 on the plane defined by the first direction X and the third direction Z, the welding portion between the first bending portion 511 and the first bus bar 21 and the welding portion between the second bending portion 521 and the second bus bar 22 are not overlapped, and the welding and fixing process is performed simultaneously with the welding and fixing process of the first bending portion 511 and the first bus bar 21 and the welding and fixing process of the second bending portion 521 and the second bus bar 22, so that the assembling efficiency can be further improved.

In some embodiments of the present utility model, the information acquisition component 50 further comprises: a signal collection connector 53, the signal collection connector 53 is disposed on an edge of the information collection assembly 50 facing the second side rail 60.

In the battery module 01 provided by the utility model, the signal output by the signal acquisition connector 53 is a low-voltage signal; the signals output by the first output electrode 51 and the second output electrode 52 are high-voltage signals, and the signal acquisition connector 53 is arranged on the edge of the information acquisition assembly 50 facing the second boundary beam 60, so that the signal acquisition connector 53, the first output electrode 51 and the second output electrode 52 are respectively positioned on different sides of the information acquisition assembly 50, and a high-voltage high-current loop and a low-voltage low-current loop in the battery module 01 are separated, thereby improving the electrical safety of the battery module 01.

In some embodiments of the present utility model, the battery module 01 further includes: the management system 70 is configured to monitor a state of the battery pack 40, and the management system 70 is electrically connected to the signal acquisition connector 53, where the management system 70 is disposed on a side of the battery pack 40 facing the second side rail 60.

In the battery module 01 provided by the utility model, the management system 70 is electrically connected with the signal acquisition connector 53 through the wire harness, and the management system 70 is arranged between the battery pack 40 and the second side beam 60, so that the management system 70 can be arranged by utilizing the clearance area between the second side beam 60 and the battery pack 40, and the space utilization rate of the battery module 01 is improved.

In addition, since the management system 70 is disposed on the side of the battery pack 40 facing the second side beam 60 and the signal collecting connector 53 is disposed on the edge of the information collecting assembly 50 facing the second side beam 60, the distance between the management system 70 and the signal collecting connector 53 can be greatly shortened, the length of the wire harness can be shortened, the space in the battery module 01 can be saved, and the routing difficulty and the production cost can be reduced.

Fig. 6 is a schematic structural diagram of a second fixing bracket according to an embodiment of the present utility model. As shown in fig. 1 to 6, in some embodiments of the present utility model, the second side rail 60 includes a second surface 61, that is, a surface of the second side rail 60 facing a side of the third direction Z, the second surface 61 is parallel to the first surface 11, and the battery module 01 further includes: a second fixing bracket 80, wherein the second fixing bracket 80 fixedly connects the second side beam 60 and the management system 70; the second fixing bracket 80 includes a second limiting portion 81 and a second fixing portion 82, the second limiting portion 81 has a receiving space 810, the management system 70 is disposed in the receiving space 810, and the second fixing portion 82 fixes the second side beam 60 to a surface of one side of the third direction Z.

In the battery module 01 provided by the utility model, the second fixing bracket 80 limits the management system 70 through the second limiting portion 81, and the management system 70 and the second side beam 60 are kept relatively fixed through the second fixing portion 82. Because the second fixing portion 82 is fixed on the second surface 61 parallel to the first surface 11, when the second fixing bracket 80 is assembled with the second side beam 60, the second fixing portion can be fixed in the longitudinal direction, so that the fixing effect is ensured, meanwhile, the assembly space is saved, the assembly efficiency is improved, and the assembly difficulty is reduced.

Optionally, the first surface 11 and the second surface 61 are coplanar, and this arrangement can keep the heights of the top surfaces of the first side rail 10 and the second side rail 60 consistent, which is beneficial to reducing the structural parameter variables of the components and improving the assembly efficiency.

In some embodiments of the present utility model, the second limiting portion 81 includes a bottom plate 811 and two side plates 812 disposed on the bottom plate 811, the bottom plate 811 and the two side plates 812 form a semi-open accommodating space 810, and the connection port of the management system 70 and the wire harness is located at a side of the management system 70 away from the bottom plate 811.

Optionally, a side plate 812 closest to the second side beam 60 of the two side plates 812 includes a second end flush with the second surface 61, and the second fixing portion 82 extends from the second end toward the second side beam 60 and includes a second portion that is fitted to the second surface 61.

In the battery module 01 provided by the utility model, the second end of the side plate 812 closest to the second side beam 60 is flush with the second surface 61, so that the second fixing part 82 extending from the second end to the second side beam 60 can be closely attached to the second surface 61, and the assembly stability of the second fixing part 82 and the second surface 61 is further improved.

In some embodiments of the present utility model, the battery module 01 further includes a bus bar connector 90, one end of the first bus bar 21 and one end of the second bus bar 22 are respectively electrically connected to the bus bar connector 90, the other end of the first bus bar 21 is electrically connected to the first output electrode 51, and the other end of the second bus bar 22 is electrically connected to the second output electrode 52.

In some embodiments of the present utility model, the battery module 01 further includes a battery pack breaking unit 100 (Battery Disconnect Unit, BDU), and the battery pack breaking unit 100 is disposed between the bus bar connector 90 and the first and second bus bars 21 and 22, for controlling the connection and disconnection of the circuit between the bus bar connector 90 and the first and second bus bars 21 and 22.

Since the voltage signals output by the first bus bar 21 and the second bus bar 22 are high-voltage signals, a certain safety risk exists during use, and the battery pack breaking unit 100 can timely cut off the connection state between the bus bar connector 90 and the first bus bar 21 and the second bus bar 22 when needed, so that the use safety of the battery module 01 is ensured.

In a second aspect, the present utility model also provides a battery pack comprising at least one battery module 01 as described in any one of the above.

Further, the battery pack further comprises a battery box, and the first side beam 10 and the second side beam 60 in the battery module 01 are attached to the inner wall of the battery box.

In summary, the present utility model provides a battery module and a battery pack, the battery module includes: a first side rail extending in a first direction; the second side beam extends along the first direction and is positioned at one side of the first side beam towards the second direction, wherein the second direction is perpendicular to the first direction; the busbar is arranged between the first side beam and the second side beam; the first fixing bracket is fixedly connected with the first side beam and the busbar; the first fixing support comprises a first limiting portion and a first fixing portion which are integrally formed, the first limiting portion is sleeved on the periphery of the busbar, the first fixing portion is arranged on one side, facing the third direction, of the first limiting portion, and the first fixing portion is fixed on the surface, facing one side, facing the third direction, of the first side beam, and the third direction is perpendicular to the first direction and the second direction. In the battery module and the battery pack provided by the utility model, the limiting part sleeved on the periphery of the bus bar can limit the bus bar in the transverse and longitudinal directions, and the first fixing part is fixed on the surface of one side of the first side beam facing the third direction, so that the first fixing support and the first side beam can be assembled and fixed in the longitudinal direction, the assembly space is saved, the assembly efficiency is improved, and the assembly difficulty is reduced.

The foregoing has outlined rather broadly the more detailed description of embodiments of the utility model, wherein the principles and embodiments of the utility model are explained in detail using specific examples, the above examples being provided solely to facilitate the understanding of the method and core concepts of the utility model; meanwhile, as those skilled in the art will have variations in the specific embodiments and application scope in light of the ideas of the present utility model, the present description should not be construed as limiting the present utility model.

Claims (10)

1. A battery module, characterized in that the battery module comprises:

a first side rail extending in a first direction;

the second side beam extends along the first direction and is positioned at one side of the first side beam towards the second direction, wherein the second direction is perpendicular to the first direction;

the busbar is arranged between the first side beam and the second side beam;

the first fixing bracket is fixedly connected with the first side beam and the busbar;

the first fixing support comprises a first limiting portion and a first fixing portion which are integrally formed, the first limiting portion is sleeved on the periphery of the busbar, the first fixing portion is arranged on one side, facing the third direction, of the first limiting portion, and the first fixing portion is fixed on the surface, facing one side, facing the third direction, of the first side beam, and the third direction is perpendicular to the first direction and the second direction.

2. The battery module according to claim 1, wherein the first stopper portion includes: the bottom wall is connected with the two side walls, and the top wall is connected with one side wall;

the bottom wall, the top wall and the two side walls are respectively abutted with the bus bars.

3. The battery module according to claim 2, wherein a side wall closest to the first side rail among the two side walls is connected to the first fixing portion, wherein the first fixing portion is parallel to a surface of a side of the first side rail facing the third direction, and the first fixing portion includes a first portion fitted on the surface of the side of the first side rail facing the third direction.

4. The battery module of claim 1, wherein the buss bars include a first buss bar and a second buss bar, a perpendicular projection of the first buss bar on a plane defined by the first direction and the third direction being non-coincident with a perpendicular projection of the second buss bar on a plane defined by the first direction and the third direction.

5. The battery module according to claim 4, further comprising:

the battery pack is arranged between the first side beam and the second side beam;

the information acquisition subassembly sets up first boundary beam with between the second boundary beam, and be located the group battery orientation one side of third direction, the information acquisition subassembly includes: a first output electrode and a second output electrode;

the first bus bar is arranged between the first side beam and the battery pack, the second bus bar is arranged between the first side beam and the battery pack, the first output electrode and the second output electrode are both arranged on the edge of the information acquisition assembly, which faces the first side beam, the first bus bar is electrically connected with the first output electrode through a first bending part, the second bus bar is electrically connected with the second output electrode through a second bending part, and the extending direction of the first bending part and the extending direction of the second bending part are in the third direction.

6. The battery module of claim 5, wherein the first bent portion is welded to the first bus bar, and the second bent portion is welded to the second bus bar.

7. The battery module of claim 5, wherein the information acquisition assembly further comprises: the signal acquisition connector is arranged on the edge of the information acquisition assembly, which faces the second boundary beam.

8. The battery module according to claim 7, further comprising: the management system is used for monitoring the state of the battery pack, and is electrically connected with the signal acquisition connector, wherein the management system is arranged on one side, close to the second boundary beam, of the battery pack.

9. The battery module of claim 8, wherein the battery module further comprises: the second fixing bracket is fixedly connected with the second side beam and the management system;

the second fixing support comprises a second limiting portion and a second fixing portion, the second fixing portion is fixed on the surface of one side, facing the third direction, of the second side beam, the second limiting portion is provided with a containing space, and the management system is arranged in the containing space.

10. A battery pack, characterized in that the battery pack comprises at least one battery module according to any one of claims 1-9.