CN216354581U

CN216354581U - Battery cell module of battery pack and battery pack

Info

Publication number: CN216354581U
Application number: CN202122390661.8U
Authority: CN
Inventors: 宋海阳; 刘静
Original assignee: Svolt Energy Technology Co Ltd
Current assignee: Svolt Energy Technology Co Ltd
Priority date: 2021-09-29
Filing date: 2021-09-29
Publication date: 2022-04-19
Anticipated expiration: 2031-09-29

Abstract

The utility model discloses a battery cell module of a battery pack and a battery pack with the same, wherein the battery cell module of the battery pack comprises: the battery cell comprises a battery cell base, a battery cell group and a sampling component, wherein a containing space is arranged in the battery cell base, and a first bus bar and a second bus bar are arranged on the inner bottom surface of the battery cell base; at least one part of the electric core group is accommodated in the accommodating space, the electric core group comprises a plurality of electric cores, and a first pole column and a second pole column of each electric core are arranged at the lower ends of the electric cores and are connected with the first busbar and the second busbar; the sampling piece is arranged between the inner bottom surface of the battery cell base and the battery cell. Through using above-mentioned technical scheme, can reduce the space that the sampling took, optimize the space utilization of electric core module, and simple structure easily constructs.

Description

Battery cell module of battery pack and battery pack

Technical Field

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

Background

With the national vigorous popularization of new energy fields, electric vehicles have become the mainstream trend in the future. The power battery pack is used as a power supply component which is the most core of the whole vehicle, and determines key indexes of driving range, cost, service life, safety, maintainability and the like of the whole vehicle.

In the related art, there are many redundant mechanical members and gaps in the battery pack, resulting in problems of increased cost and weight of the battery pack, complicated assembly process, and low space utilization rate in the battery pack.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to solving, at least to some extent, one of the technical problems in the related art. Therefore, an object of the present invention is to provide a battery cell module of a battery pack, which can reduce the space occupied by sampling, optimize the space utilization of the battery cell module, and has a simple structure and is easy to construct.

Another object of the present invention is to provide a battery pack.

According to the battery cell module of the battery pack of the embodiment of the utility model, the battery cell module comprises: the battery cell comprises a battery cell base, a battery cell group and a sampling component, wherein a containing space is arranged in the battery cell base, and a first bus bar and a second bus bar are arranged on the inner bottom surface of the battery cell base; at least one part of the electric core group is accommodated in the accommodating space, the electric core group comprises a plurality of electric cores, and a first pole column and a second pole column of each electric core are arranged at the lower ends of the electric cores and are connected with the first busbar and the second busbar; the sampling piece is arranged between the inner bottom surface of the battery cell base and the battery cell.

According to the battery cell module of the battery pack, the space occupied by sampling can be reduced, the space utilization rate of the battery cell module is optimized, and the battery cell module is simple in structure and easy to construct.

In addition, the battery cell module of the battery pack according to the above embodiment of the present invention may further have the following additional technical features:

in some embodiments, the plurality of electric cells in the electric core group are arranged along a longitudinal direction, the plurality of first poles and the plurality of second poles in the electric core group are arranged along the longitudinal direction, and the first bus bar and the second bus bar are arranged along the longitudinal direction.

In some embodiments, the sampling member is disposed between the first pole post and the second pole post.

In some embodiments, the sampling member is configured in a long strip shape extending in a longitudinal direction.

In some embodiments, the sampling member includes a main body portion and a plurality of terminals, and the plurality of terminals are respectively connected to the first bus bar and the second bus bar to connect the first pole column and the second pole column.

In some embodiments, a through hole is formed in the peripheral wall of the cell base, and at least one of the first busbar, the second busbar and the sampling piece is adapted to protrude from the through hole out of the accommodating space.

In some embodiments, the first pole and the first busbar and the second pole and the second busbar are connected in a non-welding manner.

In some embodiments, the first pole and the first bus bar and the second pole and the second bus bar are connected in an abutting manner or in a clamping manner.

In some embodiments, the cell base includes a bottom plate and a surrounding plate, the surrounding plate is connected to the bottom plate and surrounds the accommodating space, one end of the bottom plate extends out of the outside of the surrounding plate to form an extending portion, and at least one of the first busbar, the second busbar and the sampling piece extends out of the accommodating space through the surrounding plate and extends to above the extending portion.

In some embodiments, a cross beam and a longitudinal beam are disposed in the cell base, the cross beam extends in a transverse direction and the longitudinal beam extends in a longitudinal direction, the cross beam and the longitudinal beam are disposed in the mounting seat in a crossing manner, and a gap is formed between the cross beam and the longitudinal beam and an inner bottom surface of the cell base.

The battery pack according to an embodiment of the present invention includes: the battery comprises a lower shell, a battery cell module and an upper shell, wherein a module space is arranged on the lower shell; the battery cell module is arranged in the module space and is the battery cell module of the battery pack; the upper shell is arranged on the lower shell so as to seal the module in the module space.

According to the battery pack provided by the embodiment of the utility model, the spatial arrangement of the battery cell module can be optimized, the manufacturing and assembling cost is favorably reduced, and the light weight of the battery pack is realized.

Drawings

Fig. 1 is an exploded view of a battery pack according to an embodiment of the present invention.

Fig. 2 is a schematic structural diagram of a cell module according to an embodiment of the present invention.

Fig. 3 is an exploded view of a cell module according to an embodiment of the present invention.

Fig. 4 is a schematic structural diagram of a cell base according to an embodiment of the present invention.

Fig. 5 is a top view of a cell base according to an embodiment of the present invention.

Fig. 6 is a side view of a cell base according to an embodiment of the present invention.

Fig. 7 is a front view of a cell base according to an embodiment of the present invention.

Reference numerals:

the battery pack 100, the upper casing 2, the lower casing 3, the battery cell module 1, the battery cell base 11, the coaming 110, the bottom plate 111, the extension 112, the via hole 10, the first busbar 12, the second busbar 13, the sampling piece 14, the main body part 141, the terminal 142, the battery cell 15, the cross beam 16, the longitudinal beam 17, the mounting groove 101 and the through hole 102.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the utility model and are not to be construed as limiting the utility model.

With reference to fig. 1 to 7, a battery cell module 1 of a battery pack according to an embodiment of the present invention includes: the battery cell comprises a battery cell base 11, a battery cell group and a sampling piece 14, wherein a containing space is arranged in the battery cell base 11, and a first bus bar 12 and a second bus bar 13 are arranged on the inner bottom surface of the battery cell base 11; at least a part of electric core group holds in accommodation space, and electric core group includes a plurality of electric cores 15, and electric core 15's lower extreme is located to first utmost point post (not shown in the figure) and second utmost point post (not shown in the figure) of electric core 15 to connect first busbar 12 and second busbar 13, so that connect and do benefit to the electric energy transmission, sampling spare 14 is located between electric core base 11's interior bottom surface and electric core 15. Specifically, the busbar is installed in the internal surface of the electric core base 11, and the busbar is arranged below the electric core 15, so that the electric core base 11 can provide support for the connection between the busbar and the electric core 15, wherein the first busbar 12 and the second busbar 13 are respectively suitable for being connected with the first pole column and the second pole column, and the improvement of the busbar effect is facilitated. Further, the sampling piece 14 can be used for collecting the information of the battery core 15 so as to improve the balance function of the battery core 15, and because the busbar and the battery core 15 are connected on the inner surface of the battery core base 11 along the up-down direction, a certain distance is arranged between the inner bottom surfaces of the battery core 15 and the battery core base 11, the sampling piece 14 can be arranged between the inner bottom surface of the battery core base 11 and the battery core 15 so as to improve the space utilization rate and be beneficial to the sampling piece 14 to perform sampling work. In addition, first busbar 12, second busbar 13, electric core group and sampling piece rational arrangement for the module space is fully done benefit to, from this, can also improve electric core module 1's stability, makes electric core module 1 inner structure compacter, is difficult for producing great rocking because of the striking.

According to the battery cell module 1 of the battery pack, the first pole column and the second pole column of the battery cell 15 are arranged at the lower end of the battery cell 15, and the sampling piece 14 is arranged between the inner bottom surface of the battery cell base 11 and the battery cell 15, so that the space occupied by sampling can be reduced, the space utilization rate of the battery cell module 1 is optimized, and the structure is simple and easy to construct.

When in actual application, electric core base 11 internal surface is equipped with first busbar 12 and second busbar 13, the first utmost point post and the second utmost point post of a plurality of electric cores 15 set up down, and connect first busbar 12 and second busbar 13 respectively, sampling piece 14 sets up on interior bottom surface, sampling piece 14 top is equipped with electric core 15, therefore, can make full use of the space between the bottom surface in electric core 15 and the electric core base 11, improve space utilization, sampling piece 14 all locates on the interior bottom surface with the busbar, do benefit to sampling piece 14 sampling, improve and arrange the rationality.

Referring to fig. 3, optionally, the plurality of battery cells 15 in the battery core group are arranged along the longitudinal direction B, and the plurality of first poles and the plurality of second poles in the battery core group are arranged along the longitudinal direction B, and the first bus bar 12 and the second bus bar 13 are arranged along the longitudinal direction B. First busbar 12 all arranges along vertical B with first utmost point post, and second busbar 13 and second utmost point post all arrange along vertical B, do benefit to busbar and utmost point post relative from top to bottom and connect with the cooperation to further improve space utilization.

Optionally, the arrangement manner of the plurality of battery cells 15, the battery cell 15 poles and the bus bar may also be set according to actual conditions or actual sizes of the battery cell base 11 and the battery cell 15, for example, the plurality of battery cells 15, the plurality of first pole columns and the plurality of second pole columns may all be arranged along the transverse direction a, and the first bus bar 12 and the second bus bar 13 may all be arranged along the transverse direction a, which is not limited to this.

The transverse direction a may refer to a left-right direction in the drawings, and the longitudinal direction B may refer to a front-back direction in the drawings, which are made only by the drawings, and are intended to clearly illustrate the technical solutions of the present application and not to limit the scope of the present invention.

Referring to fig. 3 and 4, optionally, the sampling member 14 is disposed between the first pole column and the second pole column, so that the sampling member 14 can be disposed at the gap between the first pole column and the second pole column, which is favorable for spatial arrangement.

Also, first busbar 12 and second busbar 13 are spaced apart along horizontal a to connect the first utmost point post and the second utmost point post of electric core, sampling piece 14 is located between first utmost point post and the second utmost point post, for example, a plurality of electric cores in the electric core group are vertically arranged, and a plurality of first utmost point posts in the electric core group are vertically arranged, a plurality of second utmost point posts in the electric core group are vertically arranged, therefore, a plurality of first utmost point posts set up to be along longitudinal one row, a plurality of second utmost point posts set up to be along longitudinal one row, a plurality of first utmost point posts and a plurality of second utmost point posts that correspond construct along horizontal spaced two rows, consequently, can set up sampling piece 14 between two rows of utmost point posts. Specifically, since the first pole column and the second pole column are usually spaced, the first bus bar 12 and the second bus bar 13 are spaced, which facilitates the connection between the second bus bar 13 and the first pole column and the second pole column; on the other hand, the sampling piece 14 is arranged at the interval between the first pole and the second pole, so that the sampling piece 14 can sample the first bus bar 12 and the second bus bar 13 conveniently, and the space utilization rate can be improved.

Optionally, the sampling member 14 is configured in an elongated shape extending in the longitudinal direction B to facilitate sampling and to facilitate spatial arrangement. In conjunction with the foregoing, the busbars are arranged along the longitudinal direction B, and the first busbar 12 and the second busbar 13 are spaced apart in the transverse direction a, so that arranging the sampling member 14 in a long shape extending along the longitudinal direction B facilitates the sampling member 14 to be arranged at the space, and the sampling member 14 can be connected to the first busbar 12 and the second busbar 13, respectively, for sampling.

Referring to fig. 3, optionally, the sampling member 14 includes a main body 141 and a plurality of terminals 142, and the plurality of terminals 142 are respectively connected to the first bus bar 12 and the second bus bar 13 to connect the first pole and the second pole. Specifically, the plurality of terminals 142 are respectively disposed at two ends of the main body 141, and the plurality of terminals 142 are disposed at intervals so as to be suitable for being connected with the poles, since the sampling member 14 is disposed at an interval between the first bus bar 12 and the second bus bar 13, the plurality of terminals 142 disposed at two sides of the main body 141 of the sampling member 14 can be simultaneously connected to the first bus bar 12 and the second bus bar 13, that is, one terminal 142 is connected to one bus bar, so as to improve sampling stability and accuracy.

Alternatively, the main body portion 141 may be provided in a flat sheet shape to facilitate arrangement between the inner bottom surface of the cell base 11 and the cell 15, which facilitates space saving.

Optionally, a through hole 10 is formed in the peripheral wall of the cell base 11, and at least one of the first busbar 12, the second busbar 13 and the sampling piece 14 is adapted to extend out of the accommodating space from the through hole 10, so as to facilitate data transmission, connection device or wiring, and save space.

Optionally, the first pole and the first bus bar 12 and the second pole and the second bus bar 13 are connected in a non-welding manner. That is to say, do not weld between first utmost point post and the first busbar 12, do not weld between second utmost point post and the second busbar 13 to can simplify the connection structure of utmost point post and busbar, improve the connection efficiency of utmost point post and busbar, but also simplify the manufacture craft of electric core module. The non-welding manner here may include abutting, clamping, shaft hole sleeving, bonding, and the like.

The first pole and the first bus bar 12 and the second pole and the second bus bar 13 may be connected in an abutting manner or in a clamping manner. Can realize the stable connection of utmost point post and the busbar that corresponds through butt and joint to improve the connection efficiency and the effect of electric core and busbar, and guarantee the stability and the reliability of electricity connection, reduce the energy consumption.

With reference to fig. 3 and 5, according to the cell module 1 of the embodiment of the present invention, the plurality of sampling members 14 and the bus bars located at the left and right sides of the cell base 11 extend out of the accommodating space from the through holes 10, so as to facilitate wiring and connection.

With reference to fig. 6 and fig. 7, optionally, the cell base 11 includes a bottom plate 111 and a surrounding plate 110, the surrounding plate 110 is connected to the bottom plate 111 and surrounds an accommodation space, one end of the bottom plate extends out of the outside of the surrounding plate 110 to form an extension portion 112, at least one of the first busbar 12, the second busbar 13 and the sampling piece 14 passes through the surrounding plate 110 to extend out of the accommodation space and extend to the upper side of the extension portion 112, so as to facilitate assembly, facilitate reducing the space occupancy rate of the cell module 1, and have a simple structure and are easy to construct. In combination with the foregoing, the sampling line and/or the first and

second busbars

12 and 13 may protrude from the through hole 10 to the accommodating space, for example, one end of the main body 141 may protrude from the electric core group along the longitudinal direction B and extend upward along the enclosing plate 110. Furthermore, the extension part can be used for arranging devices such as electrical parts and battery management devices, so that the extension part can be conveniently connected with the bus bar or the sampling part 14, arrangement is facilitated, wiring harnesses can be reduced, and the module structure is simplified.

Specifically, referring to fig. 2, according to the battery cell module 1 of the embodiment of the present invention, the sampling member 14 extends out of the accommodating space from the through hole 10 and extends upward along the enclosing plate 110, and the battery management device may also be disposed on the enclosing plate 110, so that the battery management device is directly connected to the sampling member 14, which is favorable for data transmission. The busbar that is located electric core base 11 left and right sides both ends stretches out via hole 10 to epitaxial portion, and electric component can be connected with the busbar on epitaxial portion, and the main part 141 part of electric component can be fixed with on bounding wall 110 to do benefit to and connect, do benefit to saving space. Through setting up the epitaxial portion, can construct the accommodation space of electric device or management device, the epitaxial portion does benefit to and encloses the interior accommodation space of 110 and to being connected to simplify the module structure.

As shown in the figure, the enclosure 110 surrounds a ring structure, and the enclosure 110 extends in the up-down direction, and the lower end of the enclosure 110 is closed by a bottom plate 111, the front edge of the bottom plate extends out of the front surface of the enclosure 110 to form an extension 112, and a through hole 10 is formed between the front end of the bottom plate and the enclosure 110 to accommodate a busbar, a sampling piece, and the like.

Alternatively, the bottom plate 111 and the shroud 110 may be integrally formed to facilitate structural strength; the base 111 and shroud 110 may also be configured to be detachably connected to facilitate assembly.

With reference to fig. 4 and 5, optionally, a cross beam 16 and a longitudinal beam 17 are disposed in the cell base 11, the cross beam 16 extends along the transverse direction a and the longitudinal beam 17 extends along the longitudinal direction B, the cross beam 16 and the longitudinal beam 17 are disposed in the mounting seat in a crossing manner to achieve a supporting effect in the transverse direction a and the longitudinal direction B of the cell base 11, and a gap is formed between the cross beam 16 and the longitudinal beam 17 and the inner bottom surface of the cell base 11, so that a bus bar or other components mounted on the inner bottom surface of the cell base 11 can pass through the gap to facilitate assembly.

Optionally, the cross beam 16 and the longitudinal beam 17 are fixedly connected or detachably connected to the cell base 11. For example, the cross beam 16 and the longitudinal beam 17 are fixedly connected with the cell base 11, so that the structural strength of the cell base 11 of the cell 15 can be improved, and gaps are formed between the cross beam 16 and the longitudinal beam 17 and the cell base 11, so that bus bars and other components can be conveniently mounted on the base; crossbeam 16 and longeron 17 also can set detachable into, do benefit to the flexibility that improves electric core base 11 assembly, for example, can directly arrange the arranging of converging when the installation busbar and arrange in a plurality of mounting grooves 101, then installation crossbeam 16 and longeron 17 to improve structural strength, play certain supporting effect.

Optionally, the cell base 11, the cross beam 16 and the longitudinal beam 17 may be made of a plastic material, so as to reduce the weight of the module and facilitate reducing the cost; in order to improve the structural strength, reinforcing ribs may be appropriately provided on the cell base 11, the cross beam 16, and the longitudinal beam 17 to improve the structural strength.

The battery pack 100 according to an embodiment of the present invention includes: the battery comprises a lower shell 3, a battery cell module 1 and an upper shell 2, wherein a module space is arranged on the lower shell 3; the battery cell module 1 is arranged in the module space, so that the lower shell 3 can effectively protect the battery cell module 1, and the battery cell module 1 is the battery cell module 1 of the battery pack; go up casing 2 and establish on casing 3 down to seal the module in the module space, with the stability of improving electric core module 1 in the casing, and directly set up electric core module 1 in last casing 2 and casing 3 down, need not welding operation, do benefit to the assembly, practice thrift the processing cost. Through using aforementioned electric core module 1 in battery package 100, can facilitate for the assembly, do benefit to and improve spatial arrangement to do benefit to the volume that reduces battery package 100, and simple structure easily constructs, do benefit to and reduce manufacturing and assembly cost, realize the lightweight of battery package 100.

According to the battery pack 100 provided by the embodiment of the utility model, the spatial arrangement of the battery cell module 1 is favorably optimized, the manufacturing and assembling cost is favorably reduced, and the light weight of the battery pack 100 is realized.

The following describes a battery cell module 1 and a battery pack 100 of a battery pack according to an embodiment of the present invention with reference to the drawings.

Referring to fig. 1 to 7, a battery pack 100 of the battery pack 100 according to an embodiment of the present invention includes: lower casing 3, electric core module 1 and last casing 2, wherein, lower casing 3 has the module space, and in electric core module 1 located the module space, casing 3 under the upper cover of last casing 2 to form inside stable battery package 100 of connecting.

With reference to fig. 2 to 5, specifically, the battery cell module 1 includes: the battery cell comprises a battery cell base 11, a first bus bar 12, a second bus bar 13, a sampling piece 14 and a battery cell 15, wherein more specifically, a plurality of mounting grooves 101 are formed on the inner surface of the battery cell base 11, the plurality of bus bars are mounted in the plurality of mounting grooves 101, the mounting grooves 101 have a preset depth, and the horizontal limiting effect of the mounting grooves 101 on the bus bars is improved so as to improve the mounting stability of the bus bars; the sampling piece 14 includes a body portion 141 and a plurality of terminals 142; the battery cell 15 has a first pole and a second pole; the cell base 11 is internally provided with a transverse beam 16 extending along the transverse direction A and a longitudinal beam 17 extending along the longitudinal direction B, wherein the transverse beam 16 and the longitudinal beam 17 are fixedly connected with the cell base 11, and the transverse beam 16 and the longitudinal beam 17 are respectively positioned on the central lines of the transverse direction A and the longitudinal direction B of the cell base 11 so as to improve the structural stability and the balance of the cell base 11. Specifically, a first pole column and a second pole column are respectively connected with a first bus bar 12 and a second bus bar 13, a plurality of sampling pieces 14 are arranged at intervals on the inner bottom surface of the cell base 11, the sampling pieces 14 are located between the first bus bar 12 and the second bus bar 13, each sampling piece 14 is provided with a main body portion 141 in a long strip shape, a plurality of terminals 142 are arranged at intervals on the left side and the right side of the main body portion 141, and each terminal 142 is respectively connected with one bus bar, so that one sampling piece 14 can simultaneously acquire information of the adjacent first bus bar 12 and the adjacent second bus bar 13, and the sampling piece 14 is located between the pole columns of two adjacent cells 15, so that the space can be saved. The first pole and the second pole may be a positive pole and a negative pole, and thus the first bus bar 12 and the second bus bar 13 may be respectively used for connecting the positive pole and the negative pole of the battery cell 15.

With reference to fig. 2 to 7, in the cell module 1 of the battery pack according to the embodiment of the present invention, the cell base 11 is a rectangular parallelepiped with an open upper end, and the mounting groove 101 and the single bus bar are also rectangular.

In practical applications, the first bus bar 12 and the second bus bar 13 are correspondingly installed in a plurality of installation grooves 101 with predetermined depths, as shown in fig. 2 to 5. The sampling member 14 is disposed on the inner surface of the cell base 11 between the inner bottom surface and the cell 15, and is connected to the first bus bar 12 and the second bus bar 13 through a plurality of terminals 142 on both left and right sides of the sampling member 14, respectively. The positive pole column and the negative pole column of the battery cell 15 are respectively connected with the first bus bar 12 and the second bus bar 13 from top to bottom, the battery cell module 1 can be installed in the lower shell 3, and the upper shell 2 can cover the lower shell 3. Particularly, all set up a plurality of perforating holes 102 at the interval on crossbeam 16 and the longeron 17 of last casing 2, lower casing 3 and electric core module 1, perforating hole 102 corresponds the setting in the upper and lower direction, during the assembly, can correspond fixed connection with last casing 2, electric core module 1 and lower casing 3 through perforating hole 102 to improve structural stability, and do benefit to and simplify the structure.

Optionally, as shown in fig. 4, multiple rows of mounting grooves 101 are disposed at intervals in the left-right direction on the inner bottom surface of the cell base 11, and each row includes multiple mounting grooves 101 extending in the front-back direction at intervals in the front-back direction, where a row of mounting grooves 101 is disposed at a position close to the left and right edges of the inner bottom surface of the cell base 11, and between the two rows of mounting grooves 101, every two rows of mounting grooves 101 form a group, and a front end or a rear end of each two rows of mounting grooves of each group is provided with a mounting groove 101 extending in the left-right direction and opposite to the front and back of the two rows of mounting grooves.

The battery cell module provided by the embodiment of the utility model uses a battery cell with zero expansion during charging and discharging, the battery cell is sequentially placed in the battery cell base with the positive electrode and the negative electrode facing downwards, and before the battery cell is placed, a busbar and a sample need to be placed first.

Owing to use zero inflation's electric core, use a kind of straight busbar in this patent, need not to carry out the design of several fonts or arch preventing expanding to the busbar, according to the busbar of the suitable specification of the connection form design of electric core, it can to put into the mounting groove in proper order with the busbar.

In the related art, the cell poles are usually arranged upward, that is, the bus bar is welded above the cell, and then the sampling is welded above the bus bar. In the application, the bus bar and the battery cell 15 do not need to be connected in a welding mode, the battery cell module 1 of the embodiment of the utility model firstly discharges the bus bar into the mounting groove 101, and if the scheme that the sampling piece is arranged below the bus bar is used, the fitting between the battery cell and the bus bar is influenced, so that the battery cell module 1 of the embodiment of the utility model welds the sampling piece 14 between the fitting surfaces of the bus bar and the battery cell 15 and places the sampling piece 14 at the middle position of two battery cell 15 poles, and thus, the sampling can be placed by utilizing the gap between the battery cell 15 poles, the design and processing process of the bus bar is simplified, the mounting of the bus bar is optimized, the space occupied by the sampling is reduced, the space occupancy rate of the module is reduced, and the structure is simple and easy to assemble.

In the description of the present invention, it is to be understood that the terms "central", "longitudinal", "lateral", "thickness", "upper", "lower", "front", "rear", "left", "right", "horizontal", "bottom", "inner", "outer", "circumferential", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.

Claims

1. The utility model provides an electricity core module of battery package which characterized in that includes:

the battery cell comprises a battery cell base, a battery cell and a battery cell, wherein a containing space is formed in the battery cell base, and a first bus bar and a second bus bar are arranged on the inner bottom surface of the battery cell base;

the electric core group, at least a part of which is accommodated in the accommodating space, comprises a plurality of electric cores, and a first pole column and a second pole column of each electric core are arranged at the lower ends of the electric cores and are electrically connected with the first busbar and the second busbar;

the sampling piece is arranged between the inner bottom surface of the electric core base and the electric core.

2. The battery cell module of the battery pack of claim 1, wherein the plurality of battery cells in the battery core pack are arranged in a longitudinal direction, the plurality of first poles and the plurality of second poles in the battery core pack are arranged in the longitudinal direction, and the first bus bar and the second bus bar are arranged in the longitudinal direction.

3. The battery pack cell module of claim 2, wherein the sampling member is disposed between the first pole post and the second pole post.

4. The battery pack cell module of claim 2, wherein the sampling member is configured in a longitudinally extending elongated shape.

5. The battery pack cell module of claim 1, wherein the sampling member includes a main body and a plurality of terminals, and the plurality of terminals are respectively connected to the first busbar and the second busbar to connect the first terminal post and the second terminal post.

6. The battery pack cell module of claim 1,

the peripheral wall of the battery core base is provided with a through hole, and at least one of the first busbar, the second busbar and the sampling piece is suitable for extending out of the accommodating space from the through hole.

7. The battery cell module of the battery pack of claim 1, wherein the first terminal post and the first busbar and the second terminal post and the second busbar are connected in a non-welded manner; and/or

The first pole column is connected with the first bus bar and the second pole column is connected with the second bus bar in an abutting mode or in a clamping mode.

8. The battery cell module of claim 1, wherein the cell base includes a bottom plate and a surrounding plate, the surrounding plate is connected to the bottom plate and surrounds the accommodating space, one end of the bottom plate extends out of the outside of the surrounding plate to form an extending portion, and at least one of the first busbar, the second busbar and the sampling member extends out of the accommodating space through the surrounding plate and extends to above the extending portion.

9. The battery cell module of the battery pack of any of claims 1-8, wherein the cell base has a cross member and a longitudinal member disposed therein, the cross member extends in a transverse direction and the longitudinal member extends in a longitudinal direction, the cross member and the longitudinal member are disposed in the mounting seat in a crossing manner, and a gap is formed between the cross member and the longitudinal member and an inner bottom surface of the cell base.

10. A battery pack, comprising:

the lower shell is provided with a module space;

a cell module disposed within the module space, the cell module being a cell module of the battery pack of any of claims 1-9;

and the upper shell is arranged on the lower shell so as to seal the module in the module space.