CN215644829U - Battery module and battery pack - Google Patents
Battery module and battery pack Download PDFInfo
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- CN215644829U CN215644829U CN202122384875.4U CN202122384875U CN215644829U CN 215644829 U CN215644829 U CN 215644829U CN 202122384875 U CN202122384875 U CN 202122384875U CN 215644829 U CN215644829 U CN 215644829U
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- side plate
- battery
- battery cell
- battery module
- accommodating cavity
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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Abstract
The utility model discloses a battery module and a battery pack, wherein the battery module comprises: the battery comprises a shell, a battery cell accommodating cavity and a battery cell accommodating cavity, wherein an open opening communicated with the battery cell accommodating cavity is formed in the shell; the battery cell is accommodated in the battery cell accommodating cavity, and one end of the battery cell, which is provided with a pole, is opposite to the bottom wall of the battery cell accommodating cavity; and the heat preservation piece is arranged in the open hole and covers the battery cell. According to the battery module, the battery module can directly insulate the battery core through the heat insulation piece, so that a shell structure in the prior art is omitted, the occupied space of the battery module is reduced, and the light weight design of the battery module is realized.
Description
Technical Field
The utility model relates to the field of battery packs, in particular to a battery module and a battery pack.
Background
In the related art, under a low temperature state, the charge receiving capacity, the charge efficiency and the capacity of the battery are reduced, and if the battery is discharged at a large current for a long time, the actual discharge capacity of the battery becomes smaller, so that the battery is generally covered by the heat preservation shell to realize the heat preservation effect.
SUMMERY OF THE UTILITY MODEL
The present invention is directed to solving at least one of the problems of the prior art. Therefore, an object of the present invention is to provide a battery module, which can directly insulate a battery cell through an insulating member, thereby eliminating a housing structure in the prior art, reducing the occupied space of the battery module, and realizing a lightweight design of the battery module.
The utility model also provides a battery pack with the battery module.
The battery module according to the present invention includes: the battery comprises a shell, a battery cell accommodating cavity and a battery cell accommodating cavity, wherein an open opening communicated with the battery cell accommodating cavity is formed in the shell; the battery cell is accommodated in the battery cell accommodating cavity, and one end of the battery cell, which is provided with a pole, is opposite to the bottom wall of the battery cell accommodating cavity; and the heat preservation piece is arranged in the open hole and covers the battery cell.
According to the battery module, the heat preservation piece is arranged on the battery module, the heat preservation piece can directly cover the battery core, so that the heat preservation effect on the battery core is achieved, and compared with the prior art, the heat preservation piece is attached to one end of the battery core, the battery core does not need to be integrally covered, so that the space occupied by the heat preservation piece is small, the space occupied by the battery module is further reduced, and the light weight design of the battery module is achieved.
According to an embodiment of the present invention, the battery module further includes: the upper cover is arranged on the shell and is suitable for sealing the open opening, and the heat preservation piece is arranged between the battery cell and the upper cover.
According to an embodiment of the present invention, the battery module further includes: the busbar, the busbar set up in hold the intracavity and be located hold the diapire in chamber, the busbar be suitable for with the utmost point post butt of electricity core.
According to one embodiment of the utility model, the thermal insulation is configured as a compressible element.
According to an embodiment of the present invention, at least a portion of an edge of the open opening is provided with a limiting member adapted to limit movement of the battery cell, and the heat preservation member is provided with a fitting groove adapted to receive the limiting member.
According to one embodiment of the utility model, the housing comprises: a base plate; the bottom plate is provided with a containing cavity, the containing cavity is provided with a first side plate and a second side plate, the first side plate and the second side plate are respectively arranged on two opposite side edges of the bottom plate, the first side plate, the second side plate and the bottom plate are jointly limited by the containing cavity, and the free end of the first side plate and/or the second side plate is provided with the limiting part.
According to an embodiment of the utility model, a third side plate is disposed on the bottom plate and extends in a direction away from the bottom plate, the third side plate is disposed at a distance from the first side plate and the second side plate, a plurality of battery cells are disposed between the first side plate and the third side plate and between the second side plate and the third side plate, and a limiting member is disposed at a free end of the third side plate.
According to one embodiment of the present invention, the first side plate, the third side plate and the second side plate are arranged at intervals in a first direction, and a plurality of partition plates spaced apart in a second direction are disposed between the first side plate and the third side plate and/or between the second side plate and the third side plate to define a plurality of cell accommodating cavities for accommodating the cells.
According to one embodiment of the utility model, the cross section of the stopper is configured as a trapezoid or a triangle and gradually decreases in width in a direction away from the base plate.
The battery pack according to the present invention is briefly described below.
According to the battery pack provided with the battery modules in the embodiments, the battery pack provided with the battery modules in the embodiments can directly insulate the battery core through the heat insulation piece in the battery pack, so that the occupied space of the battery pack is reduced, and the light weight design of the battery pack is realized.
Additional aspects and advantages of the utility model will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the utility model.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a schematic structural view of a battery module according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a housing according to an embodiment of the utility model;
fig. 3 is a schematic structural view of a heat retaining member according to an embodiment of the present invention.
Reference numerals:
the number of the battery modules 10 is such that,
a housing 11, a bottom plate 111, a first side plate 112, a second side plate 113,
a third side plate 114, a stopper 115, a spacer 116,
the battery core 12, the heat preservation piece 13, the matching groove 131,
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 accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
A battery module 10 according to an embodiment of the present invention including a case 11, a cell 12, and a heat insulator 13 is described below with reference to fig. 1 to 3. Be formed with in casing 11 that the electric core holds the chamber and be provided with and hold the spacious opening in chamber intercommunication with electric core, electric core 12 is acceptd in electric core and is held the intracavity, and electric core 12 is provided with the one end of utmost point post and electric core and holds the diapire in chamber just right, and heat preservation 13 sets up in spacious opening and cover electric core 12.
In the related art, under a low temperature state, the charge receiving capacity, the charge efficiency and the capacity of the battery are reduced, and if the battery is discharged at a large current for a long time, the actual discharge capacity of the battery becomes smaller, so that the battery is generally covered by the heat preservation shell to realize the heat preservation effect.
Specifically, as shown in fig. 1, a cell accommodating chamber is formed in the casing 11, the cell accommodating chamber is used for accommodating the cell 12, and the upper end of the casing 11 is open so as to be suitable for the cell 12 to be assembled from the upper end. The housing 11 may be made of a hard insulating material, so as to be suitable for protecting the battery cell 12 in the cell accommodating cavity, improve the overall strength of the battery module 10, and under the condition of ensuring sufficient strength, any part of the housing 11 may be provided with a lightening hole in any shape, thereby reducing the weight of the housing 11 and realizing the light-weight design of the battery module 10.
The battery cell 12 may be configured in a plurality of configurations, and a plurality of battery cells 12 are disposed in the battery cell accommodating cavity at intervals, one end of the battery cell 12 may be provided with a terminal, and one end of the battery cell 12 provided with the terminal may be directly opposite to the bottom wall of the battery cell accommodating cavity, where the terminal may be disposed at the upper end or the lower end of the battery cell 12.
The heat preservation piece 13 can be arranged at the opening, after the electric core 12 is assembled in the electric core accommodating cavity, the heat preservation piece 13 can be assembled at the upper end of the electric core 12 and cover the electric core 12, optionally, the shape of the lower end of the heat preservation piece 13 is matched with the shape of the upper end of the electric core 12, the heat preservation piece 13 and the electric core 12 are connected in a detachable mode through clamping and splicing, or the contact surface between the fixing seat and the base is directly connected through adhesive in an adhesive bonding mode. Wherein, heat preservation piece 13 can play heat retaining effect, prevents that electric core 12 from reducing at low temperature state charge efficiency, simultaneously, compares with prior art, and heat preservation piece 13 occupies the space littleer to the occupation space of battery module 10 has been reduced.
In short, according to the battery module 10 of the present invention, the battery module 10 is provided with the thermal insulation member 13, the thermal insulation member 13 can directly cover the battery cell 12, so as to perform a thermal insulation function on the battery cell 12, and compared with the prior art, the thermal insulation member 13 is attached to one end of the battery cell 12, and does not need to cover the whole battery cell 12, so that the space occupied by the thermal insulation member 13 is small, the occupied space of the battery module 10 is further reduced, and the lightweight design of the battery module 10 is realized.
According to an embodiment of the present invention, the battery module 10 further includes an upper cover 14, the upper cover 14 is disposed on the housing 11 and can be used for closing the open opening, the battery module 10 further includes a housing 16, the upper end of the housing 16 is open, and a receiving space is formed in the housing 16 and is used for receiving the housing 11 and the thermal insulation member 13, wherein the housing 16 can be matched with the upper cover 14, optionally, the housing 16 and the upper cover 14 can be detachably connected through bolts and threads, or the housing 16 and the upper cover 14 can be detachably connected through clamping and inserting, and further, the contact surface between the fixing seat and the base can be directly welded.
The heat preservation piece 13 is arranged between the battery cell 12 and the upper cover 14, when the upper cover 14 closes the open opening, the upper cover 14 can be in contact with the heat preservation piece 13 and apply pressure to the heat preservation piece 13, so that the heat preservation piece 13 is compressed with the battery cell 12, and the reliability of connection between the heat preservation piece 13 and the battery cell 12 is further improved.
According to an embodiment of the present invention, the battery module 10 further includes a bus bar 15, the bus bar 15 is disposed in the accommodating cavity, and the bus bar 15 is located on the bottom wall of the accommodating cavity, the bus bar 15 is adapted to abut against the pole of the battery cell 12, in other embodiments of the present invention, the bus bar 15 may be disposed on the upper end of the battery cell 12, specifically, when the pole of the battery cell 12 is disposed on the lower end of the battery cell 12, the lower surface of the pole is in face fit with the bus bar 15; when the utmost point post setting of electric core 12 is in the upper end of electric core 12, the upper surface and the 15 face laminating of busbar of utmost point post to need not welding operation when the assembly, reduced battery module 10 and processed the degree of difficulty, improved machining efficiency, thereby reduced battery module 10's cost. Meanwhile, when the battery cell 12 needs to be maintained, the battery cell 12 can be directly maintained only by detaching the battery cell 12 from the busbar 15, so that the maintenance difficulty is reduced, and the maintenance efficiency is improved.
According to an embodiment of the present invention, as shown in fig. 1, the thermal insulation member 13 is configured as a compressible member, when the upper cover 14 closes the open opening, the upper cover 14 may contact with the thermal insulation member 13 and apply pressure to the thermal insulation member 13, and the thermal insulation member 13 may be compressed and deformed to provide a pushing force to the battery cell 12 in a direction toward the busbar 15, so as to tightly press the battery cell 12 and the busbar 15 together, thereby further increasing the connection reliability between the battery cell 12 and the busbar 15, wherein the thermal insulation member 13 may be configured as foam.
According to an embodiment of the present invention, as shown in fig. 3, at least a portion of the edge of the open opening is provided with a limiting member 115, the limiting member 115 may be used to limit the movement of the battery cell 12, the heat preservation member 13 is provided with a matching groove 131 adapted to receive the limiting member 115, the limiting member 115 is received in the matching groove 131 by matching the limiting member 115 with the matching groove 131, and an outer surface of the limiting member 115 abuts against an inner surface of the matching groove 131, so that the limiting member 115 is in surface contact with the matching groove 131.
According to an embodiment of the present invention, as shown in fig. 2, the housing 11 includes a bottom plate 111, a first side plate 112 and a second side plate 113, the bottom plate 111 is disposed at the lowest end of the housing 11, and the bottom plate 111 can be connected to the sampling member and the bus bar 15, the first side plate 112 and the second side plate 113 are respectively disposed at two opposite sides of the bottom plate 111 and fixedly connected to the bottom plate 111, but not limited thereto, the first side plate 112, the second side plate 113 and the bottom plate 111 may be configured as an integrally formed part, and any portion of the first side plate 112, the second side plate 113 and the bottom plate 111 may be provided with a weight reduction hole of any shape under the condition that sufficient strength is ensured, so as to reduce the weight of the housing 11. The first side plate 112, the second side plate 113 and the bottom plate 111 together define an accommodating cavity.
Further, the upper edges of the first side plate 112 and the second side plate 113 are both provided with a limiting part 115, and the limiting parts 115 on the first side plate 112 and the second side plate 113 extend toward each other, and a guiding inclined plane is formed on the limiting part 115, so that when the battery cell 12 is mounted, the battery cell 12 can push the limiting part 115 to bend outward when contacting with the guiding inclined plane, so as to be suitable for mounting the battery cell 12 in the battery cell accommodating cavity.
According to an embodiment of the present invention, as shown in fig. 2, a third side plate 114 is disposed on the bottom plate 111, the third side plate 114 extends away from the bottom plate 111, the third side plate 114 is disposed at a distance from the first side plate 112 and the second side plate 113, respectively, and the third side plate 114 may separate a plurality of cell accommodating cavities in the casing 11. A plurality of battery cells 12 are arranged between the first side plate 112 and the third side plate 114, and between the second side plate 113 and the third side plate 114. The free end of the third side plate 114 is provided with a limiting member 115, and the limiting member 115 abuts against the top end of the battery cell 12.
Optionally, when the third side plate 114 partitions the inside of the casing 11 into a plurality of accommodating cavities, the two opposite sides of the opening of each accommodating cavity are respectively provided with a limiting member 115, the limiting members 115 extend along the two opposite sides of the opening of each accommodating cavity, and the limiting members 115 at the top end edge of each accommodating cavity and the limiting members 115 at the upper end of the third side plate 114 limit the electrical core 12.
According to an embodiment of the present invention, as shown in fig. 2, the first side plate 112, the third side plate 114, and the second side plate 113 are arranged at intervals in the first direction, a partition plate 116 spaced apart in the second direction is arranged between the first side plate 112 and the third side plate 114 and/or between the second side plate 113 and the third side plate 114, the partition plate 116 may define a plurality of cell accommodating cavities for accommodating the cells 12, wherein the plurality of partition plates 116 are arranged in the cell accommodating cavities, and the plurality of partition plates 116 are connected to inner walls of the cell accommodating cavities so as to partition the cell accommodating cavities into the plurality of cell accommodating cavities, and the cell accommodating cavities may perform a positioning function. The arrangement is convenient for a worker to install the plurality of battery cells 12 in the battery cell accommodating cavity respectively, so that the battery cells are positioned quickly, and the assembly efficiency of the battery cells 12 is improved.
According to an embodiment of the present invention, as shown in fig. 2, the cross section of the limiting member 115 is configured to be trapezoidal or triangular, and the width of the limiting member 115 gradually decreases in a direction away from the bottom plate 111, specifically, a guide inclined surface is formed on the limiting member 115, when the battery cell 12 is installed, the limiting member 115 is pushed to bend outward when the battery cell 12 contacts the guide inclined surface, so as to be suitable for installing the battery cell 12 in the battery cell accommodating cavity, and therefore, the limiting member 115 can function as a guide, and the lower surface of the limiting member 115 abuts against the upper surface of the battery cell 12, so as to fix the battery cell 12 in the battery cell accommodating cavity, prevent the battery cell 12 from moving in the height direction, limit the battery cell 12 from being separated from the battery cell accommodating cavity, and maintain the abutting pressure between the battery cell 12 and the busbar 15.
The battery pack according to the present invention is briefly described below.
According to the battery pack provided with the battery modules in the embodiments, the battery pack provided with the battery modules in the embodiments can directly insulate the battery core through the heat insulation piece in the battery pack, so that the occupied space of the battery pack is reduced, and the light weight design of the battery pack is realized.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the utility model and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the utility model.
In the description of the present invention, "the first feature" and "the second feature" may include one or more of the features.
In the description of the present invention, "a plurality" means two or more.
In the description of the present invention, the first feature being "on" or "under" the second feature may include the first and second features being in direct contact, and may also include the first and second features being in contact with each other not directly but through another feature therebetween.
In the description of the utility model, "above", "over" and "above" a first feature in a second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is higher in level than the second feature.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like 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 do not necessarily 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.
While embodiments of the utility model have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the utility model, the scope of which is defined by the claims and their equivalents.
Claims (10)
1. A battery module, comprising:
the battery pack comprises a shell (11), wherein a battery cell accommodating cavity is formed in the shell (11) and an open opening communicated with the battery cell accommodating cavity is formed in the shell;
the battery cell (12), the battery cell (12) is accommodated in the battery cell accommodating cavity, and one end of the battery cell (12) provided with a pole column is opposite to the bottom wall of the battery cell accommodating cavity;
and the heat preservation piece (13), wherein the heat preservation piece (13) is arranged at the open opening and covers the battery cell (12).
2. The battery module of claim 1, further comprising: the upper cover (14) is arranged on the shell (11) and is suitable for closing the open opening, and the heat preservation piece (13) is arranged between the battery cell (12) and the upper cover (14).
3. The battery module of claim 2, further comprising:
the busbar (15), the busbar (15) set up in hold the intracavity and be located hold the diapire of chamber, busbar (15) be suitable for with the utmost point post butt of electricity core (12).
4. The battery module as claimed in claim 3, characterized in that the heat retaining element (13) is configured as a compressible element.
5. The battery module according to claim 1, wherein at least a part of the edge of the open mouth is provided with a stopper (115) adapted to limit the movement of the battery cell (12), and the heat retaining member (13) is provided with a fitting groove (131) adapted to receive the stopper (115).
6. The battery module according to claim 5, wherein the housing (11) includes:
a base plate (111);
the clamping device comprises a first side plate (112) and a second side plate (113), wherein the first side plate (112) and the second side plate (113) are respectively arranged on two opposite side edges of the bottom plate (111), the accommodating cavity is defined by the first side plate (112), the second side plate (113) and the bottom plate (111) together, and the limiting piece (115) is arranged at the free end of the first side plate (112) and/or the second side plate (113).
7. The battery module according to claim 6, wherein a third side plate (114) is disposed on the bottom plate (111) and extends in a direction away from the bottom plate (111), the third side plate (114) is disposed at an interval with the first side plate (112) and the second side plate (113), a plurality of battery cells (12) are disposed between the first side plate (112) and the third side plate (114) and between the second side plate (113) and the third side plate (114), and a limiting member (115) is disposed at a free end of the third side plate (114).
8. The battery module according to claim 7, wherein the first side plate (112), the third side plate (114) and the second side plate (113) are arranged at intervals in a first direction, and a plurality of partition plates (116) spaced at intervals in a second direction are arranged between the first side plate (112) and the third side plate (114) and/or between the second side plate (113) and the third side plate (114) to define a plurality of cell accommodating cavities for accommodating the cells (12).
9. The battery module according to claim 6, wherein the stopper (115) has a trapezoidal or triangular cross-sectional configuration and a width that gradually decreases in a direction away from the base plate (111).
10. A battery pack comprising the battery module according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122384875.4U CN215644829U (en) | 2021-09-29 | 2021-09-29 | Battery module and battery pack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122384875.4U CN215644829U (en) | 2021-09-29 | 2021-09-29 | Battery module and battery pack |
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| Publication Number | Publication Date |
|---|---|
| CN215644829U true CN215644829U (en) | 2022-01-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122384875.4U Active CN215644829U (en) | 2021-09-29 | 2021-09-29 | Battery module and battery pack |
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| CN (1) | CN215644829U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023173710A1 (en) * | 2022-06-13 | 2023-09-21 | 湖北亿纬动力有限公司 | Liquid cooling plate assembly, battery box and battery pack |
-
2021
- 2021-09-29 CN CN202122384875.4U patent/CN215644829U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023173710A1 (en) * | 2022-06-13 | 2023-09-21 | 湖北亿纬动力有限公司 | Liquid cooling plate assembly, battery box and battery pack |
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