CN218586112U

CN218586112U - Heating element, battery module, battery package and consumer

Info

Publication number: CN218586112U
Application number: CN202222596114.XU
Authority: CN
Inventors: 贾海洋; 张海涛; 马兴瑞; 毛占稳; 罗仕冲
Original assignee: China Aviation Lithium Battery Co Ltd
Current assignee: China Aviation Lithium Battery Co Ltd
Priority date: 2022-09-29
Filing date: 2022-09-29
Publication date: 2023-03-07
Anticipated expiration: 2032-09-29

Abstract

The utility model relates to a battery module technical field, concretely relates to heating element, battery module, battery package and consumer. A heating assembly comprises a plurality of heating sheets which are arranged at intervals along the thickness direction of battery cores, each heating sheet is provided with two conductive lug plates, and the heating sheets are arranged between two adjacent battery cores; heating element is still including being used for placing the heating busbar on all electric cores of battery module, and the heating busbar includes the insulation board and sets up a plurality of conducting strips on the insulation board, and one of them electrically conductive otic placode on the first heating plate and one of them electrically conductive otic placode on the last heating plate are used for being connected with power supply positive pole and power supply negative pole electrically conductive respectively, and all the other electrically conductive otic placodes are in the same place through a plurality of conducting strips series connection. Design like this, the electrically conductive otic placode on all heating plates is in the same place through a plurality of conducting strips on the heating busbar in series, and the space that the heating busbar took on battery module direction of height is less for the space that the occupation of battery module is less.

Description

Heating element, battery module, battery package and consumer

Technical Field

The utility model relates to a battery technology field, concretely relates to heating element of battery module.

Background

In a low-temperature environment, the activity of the battery is obviously reduced, the internal resistance and the polarization voltage of the battery are increased, the actual available capacity is reduced, the discharge capacity of the battery is reduced, the discharge voltage platform is reduced, the battery can more easily reach the discharge cut-off voltage, which means that the available capacity of the battery is reduced, and the energy utilization rate of the battery is reduced, so that the battery needs to be heated in order to avoid the influence of low temperature on the performance of the battery, and the battery is usually heated by a heating sheet.

Hard-shell batteries are commonly installed in vehicles, and the installation space of the hard-shell batteries is continuously reduced due to the continuous increase of the required space inside the vehicle and the required height of the bottom of the vehicle chassis. Therefore, the heating sheet is generally disposed only on one side, both sides, or the bottom of the battery module to reduce the overall volume of the hard-shelled battery. However, the heating area of a single battery module is small, the heating rate of the battery is low, the battery module close to the center of the battery is far away from the heating sheets on the side parts, and the top end of the battery is far away from the heating sheets arranged at the bottom of the battery, so that the heat transfer is uneven, and the temperature rising speed of the battery module is uneven.

For solving above-mentioned problem, the battery module among the prior art sets up the heating plate between adjacent electric core to the heating area of single electric core of increase improves heating efficiency. In order to realize the conductive connection of the heating plates, two conductive lug plates are arranged on each heating plate, the conductive lug plates of adjacent heating plates are generally connected in series by adopting a connector, so that only one positive pole outgoing line position and one negative pole outgoing line position are arranged on each battery module, the positive pole outgoing line position and the negative pole outgoing line position of each battery module are respectively connected with the positive pole and the negative pole of a power supply, and the heating current can pass through all the heating plates. However, the connector occupies a large space in the height direction, resulting in a large space occupied by the battery module of the hard-shell battery.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a heating element to heating element who solves among the prior art occupation space is great and leads to the great technical problem of battery module occupation space in the direction of height. An object of the utility model is also to provide a battery module to solve the same technical problem. An object of the utility model is also to provide a battery pack to solve the same technical problem. An object of the utility model is also to provide an electric equipment to solve the same technical problem.

In order to achieve the above object, the utility model relates to a heating element's technical scheme is:

a heating assembly comprises a plurality of heating sheets which are arranged at intervals along the thickness direction of battery cores, wherein each heating sheet is provided with two conductive ear plates and is used for being arranged between two adjacent battery cores to heat the battery cores; heating element is still including being used for placing the heating busbar on all electric cores of battery module, and the heating busbar includes the insulation board and sets up a plurality of conducting strips on the insulation board, and one of them electrically conductive otic placode on the first heating plate and one of them electrically conductive otic placode on the last heating plate are used for being connected with power supply positive pole and power supply negative pole electrically conductive respectively, and all the other electrically conductive otic placodes are established ties together through a plurality of conducting strips.

The beneficial effects are that: the utility model discloses an among the heating element, the heating plate sets up between adjacent electric core, electrically conductive otic placode on all heating plates is established ties together through a plurality of conducting strips on the heating busbar, and through electrically conductive otic placode on the first heating plate and the electrically conductive otic placode on the last heating plate respectively with the power anodal, the negative pole is connected, so that heating current passes through all heating plates, compare and use the connector to connect between the adjacent heating plate in prior art, so design, the space that the heating busbar occupy on battery module direction of height is less, make the space that occupies of battery module less. Moreover, the heating busbars are placed on the top ends of all the cells without a fixing structure.

In a further improvement, in two adjacent heating sheets, one of the conductive lug plates of the first heating sheet and one of the conductive lug plates of the second heating sheet are in conductive connection through the same conductive sheet.

The beneficial effects are that: design like this, the length of electrically conductive otic placode and conducting strip is shorter, and adjacent conducting strip does not have the overlap on electric core thickness direction, is convenient for arrange the conducting strip.

In a further improvement, two conductive ear plates which are conductively connected with the same conductive sheet are arranged on the same side of the insulating plate in the width direction.

The beneficial effects are that: by the design, the conducting strips extend in the direction parallel to the length direction of the insulating plate, and compared with the conducting strips which are obliquely arranged, the conducting strips are shorter.

The improved structure comprises an insulating plate, a heating sheet, an insulating plate and two conductive ear plates, wherein the insulating plate is arranged on one side of the insulating plate, which is opposite to the heating sheet, the two ends of the insulating plate are provided with avoidance holes, and the two conductive ear plates which are conductively connected with the same conducting sheet respectively penetrate through the avoidance holes to be fixed on the conducting sheet in a lap joint mode.

The beneficial effects are that: design like this, the conducting strip can support electrically conductive otic placode, and the area of contact of electrically conductive otic placode and conducting strip is great, improves the joint strength between electrically conductive otic placode and the conducting strip.

Further improve, be equipped with the mounting groove on the insulating board one side of electric core dorsad, the conducting strip glue is in the mounting groove.

The beneficial effects are that: design like this, need not to set up connection structure, simplify the insulation board structure, the installation of being convenient for.

The further improvement is that the conductive ear plate is a copper nickel plating conductive ear plate, and the conductive ear plate is welded and fixed on the conductive sheet.

The beneficial effects are that: the design is convenient for the conductive lug plate to be welded and fixed on the conductive sheet.

Further improved, two sides of the heating plate are respectively provided with a heat conducting pad.

The beneficial effects are that: by the design, on one hand, the heat conducting pad can rapidly transfer heat generated by the heating sheet to the battery core, and on the other hand, the deviation caused by the unevenness of the surface of the battery core can be eliminated, so that the heat conducting pad is tightly attached to the battery core.

The further improvement is that one of the conductive ear plates of the first heating plate and one of the conductive ear plates of the last heating plate are both connected with connectors, and the two connectors are respectively used for being conductively connected with the positive pole and the negative pole of a power supply.

In order to achieve the above object, the utility model relates to a technical scheme of battery module is:

a battery module comprises a heating assembly and a plurality of battery cores, wherein all the battery cores are arranged at intervals along the thickness direction of the battery cores, the heating assembly comprises a plurality of heating sheets arranged at intervals along the thickness direction of the battery cores, each heating sheet is provided with two conductive lug plates, and the heating sheets are arranged between every two adjacent battery cores to heat the battery cores; heating element is still including placing the heating busbar on all electric cores of battery module, and the heating busbar includes the insulation board and sets up the conducting strip on the insulation board, and one of them electrically conductive otic placode on the first heating plate and one of them electrically conductive otic placode on the last heating plate are used for being connected with power supply positive pole and power supply negative pole electrically conductive respectively, and all the other electrically conductive otic placodes pass through the conducting strip and establish ties together.

The beneficial effects are that: the utility model discloses an among the battery module, the heating plate sets up between adjacent electric core, electrically conductive otic placode on all heating plates is established ties together through a plurality of conducting strips on the heating busbar, and through electrically conductive otic placode on the first heating plate and the electrically conductive otic placode on the last heating plate respectively with the power anodal, the negative pole is connected, so that heating current passes through all heating plates, compare and use the connector to connect between the adjacent heating plate in prior art, so design, the space that the heating busbar occupy on battery module direction of height is less, make the space that occupies of battery module less. Furthermore, the heating bus bar is placed on the top of all the cells without a fixing structure.

The beneficial effects are that: design like this, the length of electrically conductive otic placode and conducting strip is shorter, and adjacent conducting strip does not have the overlap section on electric core thickness direction, is convenient for arrange the conducting strip.

The beneficial effects are that: by the design, the conducting strips extend in the direction parallel to the length direction of the insulating plate, and compared with the conducting strips which are obliquely arranged, the conducting strips are shorter in length.

Further improve, be equipped with the mounting groove on the insulation board one side of electric core dorsad, the conducting strip glue is in the mounting groove.

The beneficial effects are that: the design is convenient for the conductive ear plate to be welded and fixed on the conductive sheet.

In a further improvement, one of the conductive ear plates of the first heating plate and one of the conductive ear plates of the last heating plate are both connected with connectors, and the two connectors are respectively used for being in conductive connection with the positive pole and the negative pole of a power supply.

In a further improvement, at least two battery cores are arranged between two adjacent heating sheets of the heating assembly.

The beneficial effects are that: by the design, the number of the heating sheets is reduced on the premise of ensuring effective heating of the battery core.

In order to achieve the above object, the utility model relates to a technical scheme of battery package is:

a battery pack comprises a battery module, wherein the battery module comprises a heating assembly and a plurality of battery cores, all the battery cores are arranged at intervals along the thickness direction of the battery cores, the heating assembly comprises a plurality of heating sheets arranged at intervals along the thickness direction of the battery cores, each heating sheet is provided with two conductive lug plates, and the heating sheets are arranged between every two adjacent battery cores to heat the battery cores; heating element is still including placing the heating busbar on all electric cores of battery module, and the heating busbar includes the insulation board and sets up the conducting strip on the insulation board, and one of them electrically conductive otic placode on the first heating plate and one of them electrically conductive otic placode on the last heating plate are used for being connected with power supply positive pole and power supply negative pole electrically conductive respectively, and all the other electrically conductive otic placodes pass through the conducting strip and establish ties together.

The beneficial effects are that: the utility model discloses an among the battery package, the battery package comprises the battery module, and the electrically conductive otic placode of the heating plate in the battery module is established ties through the heating busbar and is in the same place, compares and uses the connector to connect between the adjacent heating plate in prior art, and the space that the heating busbar occupy on the direction of height is less, and the heating busbar is placed on the top of all electric cores and need not fixed knot to construct for the space that occupies of battery module is less, and then reduces the volume of battery package.

The improved structure is further characterized in that the conducting plate is arranged on one side, back to the heating plate, of the insulating plate, the two ends of the conducting plate are provided with avoiding holes, and the two conducting lug plates which are in conducting connection with the same conducting plate respectively penetrate through the avoiding holes to be fixed on the conducting plate in a lap joint mode.

The beneficial effects are that: design like this, the heat conduction pad can transmit the heat that the heating plate produced for electric core fast on the one hand, and on the other hand can eliminate the deviation that the unevenness on electric core surface brought to ensure that heat conduction pad and electric core closely laminate.

In order to achieve the above object, the utility model relates to an electric equipment's technical scheme is:

an electric device comprises an electric main body and a battery pack, wherein the battery pack is in conductive connection with the electric main body and comprises a battery module, the battery module comprises a heating assembly and a plurality of battery cores, all the battery cores are arranged at intervals along the thickness direction of the battery cores, the heating assembly comprises a plurality of heating sheets arranged at intervals along the thickness direction of the battery cores, each heating sheet is provided with two conductive lug plates, and the heating sheets are arranged between two adjacent battery cores to heat the battery cores; heating element is still including placing the heating busbar on all electric cores of battery module, and the heating busbar includes the insulation board and sets up the conducting strip on the insulation board, and one of them electrically conductive otic placode on the first heating plate and one of them electrically conductive otic placode on the last heating plate are used for being connected with power supply positive pole and power supply negative pole electrically conductive respectively, and all the other electrically conductive otic placodes pass through the conducting strip and establish ties together.

The beneficial effects are that: the utility model discloses an among the consumer, the battery package comprises the battery module, the electrically conductive otic placode of the heating plate in the battery module is established ties through the heating busbar and is in the same place, compare and use the connector to connect between the adjacent heating plate in prior art, the space that the heating busbar occupy on the direction of height is less, the heating busbar is placed on the top of all electric cores and need not fixed knot and construct for the space that occupies of battery module is less, and then reduce the volume of battery package, vacate more spaces for the power consumption main part.

In a further improvement, in two adjacent heating sheets, one of the conductive lug plates of the first heating sheet and one of the conductive lug plates of the second heating sheet are conductively connected through the same conductive sheet.

Drawings

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

FIG. 2 is a schematic view of the structure of FIG. 1 with the cover and side panels hidden;

FIG. 3 is a schematic view of the heating assembly of FIG. 2;

FIG. 4 is a top view of the heating bus bar of FIG. 3;

fig. 5 is a schematic structural view of the heating sheet in fig. 3.

Description of the reference numerals: 11. a side plate; 12. an end plate; 13. a cover plate; 14. a connector assembly; 15. a fixed seat; 16. an electric core; 17. a cushion pad; 18. a heating plate; 19. heating the busbar; 20. binding a belt; 21. an insulating plate; 22. a conductive sheet; 23. a conductive ear plate; 24. a thermally conductive pad; 25. avoiding the hole.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clear, the present invention is further described in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention, i.e., the described embodiments are only some, but not all embodiments of the invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiment of the present invention, all other embodiments obtained by the person skilled in the art without creative work belong to the protection scope of the present invention.

It is noted that, in the embodiments of the present invention, relational terms such as "first" and "second", and the like, which may be present in the embodiments, are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that such actual relationships or sequences between the entities or operations exist. Also, terms such as "comprises," "comprising," or any other variation thereof, which may be present, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, the statement that "comprises a … …," or the like, may occur does not preclude the presence of additional identical elements in the process, method, article, or apparatus that comprises the elements.

In the description of the present invention, unless otherwise explicitly specified or limited, terms such as "mounted," "connected," and "connected" that may be present are to be construed broadly, e.g., as a fixed connection, a releasable connection, or an integral connection; can be mechanically or electrically connected; either directly or indirectly through intervening media, or may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those skilled in the art from the specific situation.

In the description of the present invention, unless otherwise explicitly specified or limited, the term "provided" may be used in a broad sense, for example, the object of "provided" may be a part of the body, or may be arranged separately from the body and connected to the body, and the connection may be a detachable connection or a non-detachable connection. The specific meaning of the above terms in the present invention can be understood by those skilled in the art from the specific situation.

The present invention will be described in further detail with reference to examples.

The utility model discloses in embodiment 1 of the battery module that provides:

as shown in fig. 1 and fig. 2, the battery module includes a plurality of electric cores 16 and a heating assembly, all electric cores 16 are distributed along the thickness direction thereof at intervals, side plates 11 are fixed to both sides of the battery module, end plates 12 are fixed to both ends of the battery module, and a cover plate 13 is fixed to the top end of the electric core 16. Wherein, an insulating plate 21 is arranged between the end plate 12 and the side surface of the adjacent electric core 16.

As shown in fig. 2 to 4, the battery module further includes a heating assembly, the heating assembly includes a heating bus bar 19 and six heating sheets 18 distributed at intervals along the thickness direction of the battery cells 16, the heating sheets 18 are disposed between adjacent battery cells 16, and two battery cells 16 are disposed between adjacent heating sheets 18. Be equipped with blotter 17 between two electric cores 16 between arbitrary adjacent heating plate 18, blotter 17 can absorb the bulging force when electric core 16 bloatees on the one hand, is convenient for realize the required size when piling up battery module on the one hand. In this embodiment, the cushion 17 is a silicone cushion.

Each heating plate 18 has two conductive ear plates 23 at the top end, and the two conductive ear plates 23 are located at two ends of the heating plate 18 in the direction perpendicular to the thickness direction of the battery core 16, and one of the conductive ear plates 23 on the first heating plate 18 and one of the conductive ear plates 23 on the second heating plate 18 in any two adjacent heating plates 18 are electrically connected, so that all the heating plates 18 are connected together in series.

As shown in fig. 5, the heating bus bar 19 is disposed on top of all the battery cells 16, and the heating bus bar 19 includes an insulating plate 21 and five conductive sheets 22, and each conductive sheet 22 is located between adjacent heating sheets 18 and fixed on a side of the insulating plate 21 facing away from the battery cells 16. Wherein, insulation board 21 is the plastics material, is equipped with two rows of mounting grooves on the one side of insulation board 21 dorsad electric core 16, and two rows of mounting grooves are along the crisscross distribution of insulation board 21 length direction, and conducting strip 22 is glued in the mounting groove. The insulation board 21 is provided with avoiding holes 25 at both ends of each conductive sheet 22, and the two conductive ear plates 23 conductively connected to the two adjacent heating sheets 18 can upwardly penetrate through the corresponding avoiding holes 25 to be fixed on the conductive sheets 22 in a lap joint manner, so that all the heating sheets 18 are connected in series through the plurality of conductive sheets 22. The ends of the conductive lugs 23 are each treated with a nickel plating of copper to facilitate laser welding of the conductive lugs 23 to the conductive tabs 22.

Connector 14 is fixed with respectively on two end plates 12, specifically, the top of end plate 12 is equipped with fixing base 15, and the top of fixing base 15 is equipped with solid fixed ring, wears to be equipped with ribbon 20 in the solid fixed ring, and ribbon 20 bundles connector 14 on fixing base 15. The insulation plate 21 is provided with a relief hole 25 corresponding to one of the conductive ear plates 23 of the first heating plate 18 and one of the conductive ear plates 23 of the last heating plate 18, so that the two conductive ear plates 23 respectively pass through the relief hole 25 and are bent outwards to be conductively connected with the corresponding connector 14, wherein the conductive ear plate 23 of the first heating plate 18 can be conductively connected with a positive electrode of a power supply in the heating circuit through the connector 14, the conductive ear plate 23 of the last heating plate 18 can be conductively connected with a negative electrode of the power supply in the heating circuit through the connector 14, so that all the heating plates 18 are connected in series on the heating circuit, and a heating current can flow to all the heating plates 18, and thus the energized heating plates 18 heat all the cells 16.

The two sides of the heating plate 18 are provided with the thermal pads 24, and the thermal pads 24 on one hand rapidly transfer heat generated by the heating plate 18 to the electric core 16, and on the other hand can eliminate deviation caused by unevenness of the surface of the electric core 16, so as to ensure that the thermal pads 24 are tightly attached to the electric core 16. In this embodiment, the thermal pad 24 is a silica gel thermal pad.

It should be noted that the above-mentioned "first heating plate 18" and "last heating plate 18" are relative positions of the heating plates 18 at two ends of the heating assembly, and the directions may be reversed to replace the positions of the "first heating plate 18" and "last heating plate 18". In addition, during actual installation, the conductive ear plate 23 of the first heater chip 18 may be electrically connected to the negative electrode of the power supply, and the last heater chip 18 may be electrically connected to the positive electrode of the power supply.

The utility model discloses an among the battery module, heating plate 18 sets up between adjacent electric core 16, one of them electrically conductive otic placode 23 of first heating plate 18 in arbitrary two adjacent heating plates 18 and one of them electrically conductive otic placode 23 of second heating plate 18 are through a plurality of conducting strip 22 series connection on the heating busbar 19, realize all electrically conductive connections of heating plate 18, and through electrically conductive otic placode 23 on first heating plate 18 and the electrically conductive otic placode 23 on last heating plate 18 respectively with the power anodal, the negative pole is connected, so that heating current passes through all heating plates 18, the design like this, the space that heating busbar 19 occupy in the battery module direction of height is less, make the space that occupies of battery module less. Furthermore, the heating bus bar 19 is attached to the top ends of all the battery cells 16 without a fixing structure, compared with the prior art in which the connector assembly 14 is used for connecting the adjacent heating plates 18.

The utility model discloses in embodiment 2 of the battery module that provides:

the present embodiment is different from embodiment 1 in that: in embodiment 1, one of the conductive ear plates 23 of the first heater plate 18 and one of the conductive ear plates 23 of the second heater plate 18 of the adjacent heater plates 18 are conductively connected by the conductive strip 22, and the conductive strip 22 is located between the adjacent heater plates 18. In the embodiment, one of the conductive ear plates 23 of the nth heating plate 18 is conductively connected with one of the conductive ear plates 23 of the (n + 2) th heating plate 18 through the same conductive sheet 22, wherein n is greater than or equal to 1.

The utility model discloses in embodiment 3 of the battery module that provides:

the present embodiment is different from embodiment 1 in that: in embodiment 1, the two conductive ear plates 23 conductively connected to the same conductive sheet 22 are located on the same side of the insulating sheet 21 in the width direction, and the extending direction of the conductive sheet 22 is parallel to the length direction of the insulating sheet 21. In the embodiment, the two conductive ear plates 23 conductively connected to the same conductive sheet 22 are respectively located at two sides of the insulating plate 21 in the width direction, and at this time, the conductive sheet 22 extends along a direction having a certain included angle with the length direction of the insulating plate 21.

The utility model discloses in embodiment 4 of the battery module that provides:

the present embodiment is different from embodiment 1 in that: in embodiment 1, the insulation board 21 is provided with avoiding holes 25 at two ends of the conductive sheet 22, and the two conductive ear plates 23 conductively connected to the same conductive sheet 22 respectively penetrate through the avoiding holes 25 to be fixed on the conductive sheet 22 in an overlapping manner. In this embodiment, a plurality of blocks are disposed on the insulating plate 21 at intervals on two sides of the arrangement direction of the battery cells 16, the conducting strips 22 are fixed on the blocks, and the conducting ear plates 23 upwardly penetrate through gaps between adjacent blocks to be lapped on the conducting strips 22. In other embodiments, the conducting plate 22 may be integrally formed with the insulating plate 21, mounting holes are respectively disposed on the conducting plate 22 at positions corresponding to the two conducting ear plates 23 that are conductively connected, and the two conducting ear plates 23 respectively penetrate into the corresponding mounting holes and are welded and fixed to the conducting plate 22.

The utility model discloses in embodiment 5 of the battery module that provides:

the present embodiment is different from embodiment 1 in that: in example 1, the conductive lug 23 is a copper-nickel-plated conductive lug 23, and is fixed by soldering to the conductive sheet 22. In the embodiment, the conductive plate 22 has a threaded hole, and correspondingly, the conductive ear plate 23 has a threaded hole, and the conductive plate 22 is connected to the conductive ear plate 23 by a screw.

The utility model discloses in embodiment 6 of the battery module that provides:

the present embodiment is different from embodiment 1 in that: in example 1, the conductive sheet 22 was adhered to the insulating sheet 21. In the present embodiment, the conducting plate 22 and the insulating plate 21 are fixed by insulating screws.

The utility model discloses in embodiment 7 of the battery module that provides:

the present embodiment is different from embodiment 1 in that: in embodiment 1, two battery cells 16 are disposed between two adjacent heating sheets 18. In this embodiment, a heating sheet 18 is disposed between any two adjacent battery cells 16. In other embodiments, three battery cells 16 may be disposed between two adjacent heating sheets 18.

The utility model discloses a heating element's embodiment: the structure of the heating member is the same as that of the heating member described in any one of embodiments 1 to 7 of the battery module described above, and will not be described in detail here.

The embodiment of the utility model discloses a battery package: the battery pack includes a battery module having the same structure as that of the battery module according to any one of embodiments 1 to 7 described above, and will not be described in detail.

The utility model discloses an electric equipment, including with electric main part and battery package, the battery package is connected with the electric main part is electrically conducted to make the battery package for with the electric main part power supply, the battery package includes the battery module, the structure of battery module and any one of above-mentioned embodiment 1 to 7 the structure of battery module the same, no longer specifically explain here.

The above description is only the preferred embodiment of the present invention, and the present invention is not limited thereto, the protection scope of the present invention is defined by the claims, and all structural changes made by the content of the specification and the drawings should be included in the protection scope of the present invention.

Claims

1. A heating assembly comprising a plurality of heating plates (18) arranged at intervals in the thickness direction of cells (16), each heating plate (18) having two electrically conductive ear plates (23), and the heating plates (18) being adapted to be disposed between two adjacent cells (16) to heat the cells (16); the heating assembly is characterized by further comprising a heating bus bar (19) placed on all the battery cores (16) of the battery module, wherein the heating bus bar (19) comprises an insulating plate (21) and a plurality of conducting strips (22) arranged on the insulating plate (21), one of the conducting lug plates (23) on the first heating strip (18) and one of the conducting lug plates (23) on the last heating strip (18) are respectively used for being in conductive connection with the positive pole and the negative pole of a power supply, and the rest conducting lug plates (23) are connected in series through the conducting strips (22).

2. The heating assembly according to claim 1, characterized in that, of two adjacent heating plates (18), one of the electrically conductive ear plates (23) of a first heating plate (18) and one of the electrically conductive ear plates (23) of a second heating plate (18) are electrically conductively connected by the same electrically conductive sheet (22).

3. The heating element according to claim 2, characterized in that the two conductive lugs (23) which are conductively connected to the same conductive strip (22) are on the same side of the insulating plate (21) in the width direction.

4. The heating assembly according to claim 1, 2 or 3, wherein the conductive sheet (22) is located on one side of the insulating plate (21) opposite to the heating sheet (18), the insulating plate (21) is provided with avoiding holes (25) at two ends of the conductive sheet (22), and two conductive ear plates (23) conductively connected with the same conductive sheet (22) respectively penetrate through the avoiding holes (25) to be fixed on the conductive sheet (22) in an overlapping manner.

5. The heating assembly according to claim 4, wherein a mounting groove is formed on the side of the insulating plate (21) facing away from the battery cell (16), and the conductive sheet (22) is glued in the mounting groove.

6. A heating element according to claim 1, 2 or 3, characterized in that the conductive lug (23) is a copper-nickel plated conductive lug (23), the conductive lug (23) being welded to the conductive sheet (22).

7. A heating element according to claim 1, 2 or 3, characterized in that one of the conductive ear plates (23) of the first heating plate (18) and one of the conductive ear plates (23) of the last heating plate (18) are each connected to a connector (14), the two connectors (14) being adapted to be electrically conductively connected to a positive power supply and a negative power supply, respectively.

8. A heating assembly according to claim 1, 2 or 3, characterized in that the heating plate (18) is provided with heat conducting pads (24) on both sides.

9. A battery module comprising a plurality of cells (16) and a heating assembly, all of the cells (16) being spaced apart along their thickness, wherein the heating assembly is as defined in any one of claims 1 to 8.

10. The battery module according to claim 9, characterized in that at least two battery cells (16) are arranged between two adjacent heating sheets (18) of the heating assembly.

11. A battery pack comprising a battery module, the battery module comprising a heating assembly and a plurality of battery cells (16), all of the battery cells (16) being arranged at intervals along the thickness direction thereof, wherein the heating assembly is the heating assembly of any one of claims 1 to 8.

12. An electric device, comprising an electric main body and a battery pack, wherein the battery pack is electrically connected with the electric main body, the battery pack comprises a battery module, the battery module comprises a heating assembly and a plurality of battery cells (16), and all the battery cells (16) are arranged at intervals along the thickness direction of the battery cells, and the electric device is characterized in that the heating assembly is the heating assembly in any one of claims 1 to 8.