CN209249527U - A kind of battery module and battery pack - Google Patents
A kind of battery module and battery pack Download PDFInfo
- Publication number
- CN209249527U CN209249527U CN201822274857.9U CN201822274857U CN209249527U CN 209249527 U CN209249527 U CN 209249527U CN 201822274857 U CN201822274857 U CN 201822274857U CN 209249527 U CN209249527 U CN 209249527U
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- CN
- China
- Prior art keywords
- wall surface
- band
- end plate
- battery cell
- multiple battery
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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
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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- Battery Mounting, Suspending (AREA)
Abstract
The utility model relates to a kind of battery module and battery pack, battery module includes multiple battery cells, end plate and band, and end plate has main part, and band surrounds the periphery of multiple battery cells and end plate；Wherein, main part is provided with band channel, band is contained in band channel, band channel has the side wall surface of the inner surface towards band, side wall surface has upside wall surface and is connected to the downside wall surface of upside wall surface, upside wall surface is located at the top of downside wall surface, and downside wall surface is relative to upside wall surface closer to multiple battery cells.It is different from the prior art, above-mentioned technical proposal is by the downside wall surface of end plate relative to upside wall surface closer to multiple battery cells, so that after band tightens, an inclined surface is formed, band avoids the position of mounting rail in the position of endplate root, and band is prevented to be mounted the case where beam is cut appearance, in addition, end plate is directly contacted with mounting rail, and the bottom edge of end plate is tightly attached on mounting rail, saves the space of battery pack.
Description
Technical field
The utility model relates to energy storage device technical fields, more particularly to a kind of battery module and battery pack.
Background technique
Battery cell has many advantages, such as that energy density is big, and long service life, energy conservation and environmental protection are widely used in new energy vapour
The different fields such as vehicle, energy-accumulating power station.
When in use, it will usually multiple battery cells be stacked and be electrically connected to each other by busbar connector, battery module is formed.
In order to fix multiple battery cells, end plate and band would generally be set in battery module, end plate is arranged in multiple battery cells
Both ends, band is enclosed in the periphery of multiple battery cells and two end plates, to form battery module.
In actual use, battery module needs to be mounted on the mounting rail in battery pack, and the position of band and installation
There is interference in the position of beam, cut so that band be made to be easy mounted beam in use, in addition, between end plate and mounting rail
Across band, the bottom edge of end plate can not be tightly attached on mounting rail, and there are gaps between mounting rail and end plate, and it is empty to waste battery pack
Between.
Utility model content
For this reason, it may be necessary to a kind of battery module be provided, for solving the above-mentioned technical problems in the prior art.
To achieve the above object, a kind of battery module is inventor provided, comprising:
Multiple battery cells, the multiple battery cell are arranged；
End plate, the end plate are set to one end of the multiple battery cell, and the end plate has main part；And
Band, the band surround the periphery of the multiple battery cell and the end plate；
Wherein, the main part is provided with band channel, and the top and bottom of the main part are run through in the band channel,
The band is contained in the band channel, and the band channel has the side wall surface of the inner surface towards the band, institute
Side wall surface is stated with upside wall surface and the downside wall surface for being connected to the upside wall surface, the upside wall surface is located at the lower wall
The top in face, the downside wall surface is relative to the upside wall surface closer to the multiple battery cell.
Further, an inclined-plane is collectively formed in the upside wall surface and the downside wall surface, along the main part
On top surface to the direction of the bottom surface of the main part, the inclined-plane is gradually tilted towards the direction close to the multiple battery cell.
Further, the downside wall surface is to the multiple curved arc-shaped curved surface in battery cell direction.
Further, the band channel is the groove for being set to the outer surface of the main part, wherein the outer surface
Surface for the main part far from the multiple battery cell.
Further, the band channel has two or more, and more than two band channel spacing settings.
Further, the battery cell includes electrode assembly and battery case, and the electrode assembly is contained in the electricity
In the shell of pond, the electrode assembly is including the first pole piece, the second pole piece and is set to first pole piece and second pole
Diaphragm between piece, the battery case include that two first surfaces and two second surfaces, the area of the first surface are big
In the area of the second surface；
Wherein, described two first surfaces in each of described battery module battery cell are mutual in the horizontal direction
It faces, described two second surfaces in each of described battery module battery cell face each other along the vertical direction；
The size of the battery module in the horizontal direction is greater than the size of the battery module along the vertical direction；
The big face of first pole piece and the big face of second pole piece face the first surface.
Further, two insulating parts, the insulating part include first surface and second surface, and described two insulating parts are set
It is placed in the both ends bottom of the multiple battery cell, and the first surface is opposite with the side of the battery cell, it is described
Second surface is opposite with the bottom of the battery cell.
To achieve the above object, inventor additionally provides a kind of battery pack, comprising:
Cabinet, the cabinet have accommodating cavity and mounting rail, and the mounting rail is set to the bottom of the cabinet；And
Multiple battery modules as described in any of the above technical solution, multiple battery modules are located at the accommodating cavity
It is interior, and the bottom of the end plate is set on the mounting rail, and the one end of the downside wall surface far from the upside wall surface
Positioned at the mounting rail side.
Be different from the prior art, above-mentioned technical proposal by the downside wall surface in band channel on end plate relative to upside wall surface more
Close to the multiple battery cell, make to bring out the position that evacuation opens mounting rail under band channel, so as to avoid band and peace
Beam contact is filled, band can be prevented to be mounted beam and cut, and the space on battery pack vertical direction can be saved.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of battery pack described in specific embodiment；
Fig. 2 is the schematic diagram of battery module and lower box connection relationship described in specific embodiment；
Fig. 3 is the partial enlarged view of part A in Fig. 2；
Fig. 4 is the structural schematic diagram of battery module described in specific embodiment；
Fig. 5 is the explosive view of battery module described in specific embodiment；
Fig. 6 is the structural schematic diagram of end plate described in specific embodiment；
Fig. 7 is the sectional view of end plate described in specific embodiment；
Fig. 8 is the sectional view of end plate described in other embodiments.
Fig. 9 is the structural schematic diagram of insulating part described in specific embodiment；
Description of symbols:
100, battery module；
200, battery pack；
210, lower box；
2101, mounting rail；
220, upper box lid；
230, accommodating cavity；
1, battery cell；
2, end plate；
201, band channel；
202, main part；
2021, at the top of main part；
2022, bottom of the main body；
2023, outer surface；
203, side wall surface；
2031, upside wall surface；
2032, downside wall surface；
3, band
31, long side；
32, short side；
4, insulating part
41, first surface；
42, second surface；
Specific embodiment
Technology contents, construction feature, the objects and the effects for detailed description technical solution, below in conjunction with specific reality
It applies example and attached drawing is cooperated to be explained in detail.
In the description of the present application unless specifically defined or limited otherwise, term " first ", is only used for retouching " second "
The purpose stated, is not understood to indicate or imply relative importance；Unless otherwise prescribed or explanation, term " multiple " refer to two
More than a；Term " connection ", " fixation " etc. shall be understood in a broad sense, for example, " connection " may be a fixed connection, being also possible to can
Dismantling connection, or be integrally connected, or electrical connection；It can be directly connected, it can also be indirectly connected through an intermediary.For
For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific conditions.
In the description of the present application, arrow A direction is length direction in all attached drawings, and arrow B direction is width
Direction is spent, arrow C direction is vertical direction.Horizontal direction is to be parallel to the direction of horizontal plane, either above-mentioned length
Direction is also possible to above-mentioned width direction.In addition, horizontal direction not only includes the absolute parallel direction in horizontal plane, also include
The direction for being roughly parallel to horizontal plane of conventional cognitive in engineering.Vertical direction is the direction perpendicular to horizontal plane, vertical direction
Not only include absolute upright in the direction of horizontal plane, also includes the side for being approximately perpendicular to horizontal plane of conventional cognitive in engineering
To.In addition, the nouns of locality such as "upper" described herein, "lower", "top", "bottom" are understood relative to vertical direction
's.
Referring to Fig. 1, the present embodiment is related to a kind of battery pack 200, battery pack 200 includes cabinet 20 and multiple battery moulds
Block 100.Cabinet 20 can be made of aluminium, aluminium alloy or other metal materials, and cabinet 20 includes upper box lid 220 and lower box
210, upper box lid 220 is set to the top of lower box 210, in order to avoid outside moisture enters inside battery pack 200, upper box lid
It can be tightly connected by sealing element between 220 and lower box 210.
Battery pack 200 can be used for being directly mounted on vehicle, provide power resources for vehicle.Lower box 210 is arranged useful
In the accommodating cavity 230 for accommodating battery module 100, multiple battery modules 100 are arranged in accommodating cavity 230, wherein multiple battery moulds
Block 100 can be arranged along the length direction (direction of arrow A meaning) of battery pack 200, can also be along the width direction of battery pack 200
(direction of arrow B meaning) arrangement.
Fig. 2 is the connection relationship diagram of battery module 100 and lower box 210.In order to which the structure for improving lower box 210 is strong
Degree, and the bonding strength of battery module 100 and lower box 210 is improved, it may be provided with two or more in the bottom of lower box 210
Mounting rail 2101, mounting rail 2101 raises upward by the bottom of lower box 210.Preferably, there are two the tools of mounting rail 2101, two
A mounting rail 2101 is located at the both ends of lower box 210, and the spacing of two mounting rails 2101 and 100 both ends of battery module
End plate 2 spacing it is roughly equal.Therefore in battery packages timing, each end plate 2 of each battery module 100 is and mounting rail
2101 are fixedly connected.Specifically, end plate 2 can be fixedly connected by bolt with mounting rail 2101.As shown in figure 3, band 3 is by end plate
When band channel 201 on 2 surrounds downwards end plate 2 and battery cell 1, band 3 is passed through from the side of mounting rail 2101.At this
In embodiment, due to downside wall surface 2032 relative to upside wall surface 2031 closer to multiple battery cells 1 so that band 3 can be with
Mounting rail 2101 is avoided, is contacted so as to avoid band 3 with mounting rail 2101, band 3 can be prevented to be mounted beam 2101 and cut.
As shown in Fig. 2, Fig. 4 and Fig. 5, battery module 100 in the present embodiment include multiple battery cells 1, end plate 2 with
And fixing belt 3.Wherein, battery cell 1 has multiple, and multiple battery cells 1 arrange in the horizontal direction, and multiple battery cells 1 can
It is serially connected by busbar connector, in parallel or mixed connection.Battery cell 1 can be for that can repeat the secondary cell that charge and discharge use, electricity
Pond monomer 1 can be arranged with multiple row in the horizontal direction, and battery cell 1 in the vertical direction (direction of arrow C meaning) can be with
Two layers of stacking or more.Certainly, battery cell 1 in the vertical direction can also only one layer of setting in some embodiments.
As shown in figure 5, the quantity of end plate 2 is two, and two end plates 2 are respectively arranged at multiple battery lists in the present embodiment
The both ends of body 1 (for example, length direction of arrow A meaning) in the horizontal direction, end plate 2 can be by metal materials such as aluminium, aluminium alloys
It is made, can also be made up of high molecular materials such as plastics of plastic process.
As shown in Figure 4 and Figure 5, band 3 surrounds the periphery of multiple battery cells 1 and two end plates 2, and band 3 is first
Tail links together, so that multiple battery cells 1 and two end plates 2 be linked together.Wherein, band 3 can be by nylon, poly-
The materials such as propylene or polyvinyl chloride are made, and have good flexibility, and band surrounds to form two along multiple battery cells 1
A long side 31 and two short sides 32.Wherein, long side 31 and second surface 120 face each other and (the meaning side arrow A in the horizontal direction
To) extend, short side 32 is faced each other with second surface 120 and (arrow C direction) extends along the vertical direction.Band 3 has
Light weight, occupancy it is small in size the advantages that, by band 3 surround battery cell 1 periphery, be more advantageous to compared to other modes
The lightweight of battery module 100.
Optionally, battery module 100 is provided at least two bands 3, (arrow B institute in the width direction between adjacent band 3
Finger direction) it is spaced apart.In other embodiments, the quantity of band 3 can be one.
As shown in Figure 6 to 8, end plate 2 has main part 202, and main part 202 is provided with band channel 201, band channel
201 along the vertical direction (arrow C direction) 2021 extend to bottom of the main body 2022 at the top of the main part.Band 3 is from band
Channel 201 passes through, to surround end plate 2 and multiple battery cells 1, wherein the short side 32 of band 3 is contained in band channel 201
It is interior.As shown in fig. 7, band channel 201 has the side wall surface 203 of the inner surface towards band 3, side wall surface 203 has upper side wall
Face 2031 and the downside wall surface 2032 for being connected to upside wall surface 2031, upside wall surface 2031 are located at the top of downside wall surface 2032,
Relative to upside wall surface 2031, closer to multiple battery cells 1, (battery cell 1 is that arrow A is signified in Fig. 7 to downside wall surface 2032
Direction).
Referring to figure 5 and figure 6, side wall surface 203 is proximate to 201 inner wall of band channel of 1 side of battery cell, and band 3 is from bundle
When tape channel 201 passes through and tenses, the inner surface (i.e. the short side 32 of band 3 is close to the surface of battery cell 1) of band 3 is adjacent to side
Wall surface 203.Due to downside wall surface 2032 relative to upside wall surface 2031 closer to multiple battery cells 1 so that band 3
From top to bottom to battery cell 1, this inclination is oblique for short side 32, to avoid the mounting rail 2101 for being located at 2 lower section of end plate, prevents from pricking
Band 3 is mounted the case where beam 2101 is cut.In addition, end plate 2 is directly contacted with mounting rail 2101, the bottom edge of end plate 2 is close to
On mounting rail 2101, the space of battery pack 20 in the vertical direction is saved.
As shown in fig. 6, band channel 201 is the groove for being set to the outer surface 2023 of main part 202 in the present embodiment,
Wherein, 202 surfaces far from multiple battery cells based on outer surface 2023.Optionally, band channel 201 tool there are two with
On, and the setting of more than two band channels 201 interval.
As shown in fig. 7, in the present embodiment, the upside wall surface 2031 and the common shape of downside wall surface 2032 in band channel 201
At an inclined-plane, i.e. upside wall surface 2031 and downside wall surface is located in the same inclined plane, and along the top of main part
2021 on the direction of the bottom of main part 2022, and inclined-plane is gradually tilted towards the direction close to multiple battery cells 1.In this implementation
In example, the upside wall surface 2031 and downside wall surface 2032 in band channel 201 are in the same plane, convenient for processing on end plate 2
Band channel 201.
As shown in figure 8, in another embodiment, the downside wall surface 2032 in band channel 201 is to multiple 1 sides of battery cell
To (i.e. the direction of arrow A meaning) curved arc-shaped curved surface.Certainly, the structure in band channel 201 and not only in the utility model
It is limited to above several forms.
As shown in Fig. 3, Fig. 5 and Fig. 9, in one embodiment, battery module 100 further includes insulating part 4, and insulating part 4 can be with
It is made of insulating materials such as rubber, silica gel.As shown in figure 9, insulating part 4 includes at least first surface 41 and second surface 42,
In, first surface 41 and the mutually perpendicular relationship of second surface 42.Insulating part 4 is set to battery module 100 along its length
The bottom at (i.e. the direction of arrow A meaning in Fig. 5) both ends, first surface 41 is opposite with the side of battery cell 1, second surface 42
It is opposite with the bottom surface of battery cell 1.Band 3 surrounds the periphery of end plate 2, battery cell 1 and insulating part 4, makes end plate 2, battery
Monomer 1 and insulating part 4 are combined together.Insulating part 4 not only plays the role of insulating protection, but also can prevent 1 quilt of battery cell
It ties tight and unbalance stress occurs in 3 part of band.
It should be noted that being not intended to limit although the various embodiments described above have been described herein
The scope of patent protection of the utility model.Therefore, based on the innovative idea of the utility model, embodiment described herein is carried out
Change and modification or equivalent structure or equivalent flow shift made based on the specification and figures of the utility model, directly
Or above technical scheme is used in other related technical areas indirectly, it is included in the protection model of the utility model patent
Within enclosing.
Claims (7)
1. a kind of battery module, comprising:
Multiple battery cells, the multiple battery cell are arranged；
End plate, the end plate are set to one end of the multiple battery cell, and the end plate has main part；And
Band, the band surround the periphery of the multiple battery cell and the end plate；
Wherein, the main part is provided with band channel, and the top and bottom of the main part are run through in the band channel, described
Band is contained in the band channel, and the band channel has the side wall surface of the inner surface towards the band, the side
Wall surface has upside wall surface and is connected to the downside wall surface of the upside wall surface, and the upside wall surface is located at the downside wall surface
Top, the downside wall surface is relative to the upside wall surface closer to the multiple battery cell.
2. an inclined-plane is collectively formed in battery module according to claim 1, the upside wall surface and the downside wall surface,
On the direction of the top surface along the main part to the bottom surface of the main part, the inclined-plane is gradually towards close to the multiple battery
The direction of monomer tilts.
3. battery module according to claim 1, the downside wall surface is curved to the multiple battery cell direction
Arc-shaped curved surface.
4. battery module according to claim 1, the band channel be set to the main part outer surface it is recessed
Slot, wherein the outer surface is surface of the main part far from the multiple battery cell.
5. battery module according to claim 1, the band channel has two or more, and more than two bundles
The setting of tape channel interval.
6. battery module according to claim 1, further includes:
Two insulating parts, the insulating part include first surface and second surface, and described two insulating parts are set to the multiple
The both ends bottom of battery cell, and the first surface is opposite with the side of the battery cell, the second surface and institute
The bottom for stating battery cell is opposite.
7. a kind of battery pack, comprising:
Cabinet, the cabinet have accommodating cavity and mounting rail, and the mounting rail is set to the bottom of the cabinet；And
Multiple battery modules as described in claim 1 to 6 is any, multiple battery modules are located in the accommodating cavity, and
And the bottom of the end plate is set on the mounting rail, and the downside wall surface is located at institute far from one end of the upside wall surface
State mounting rail side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822274857.9U CN209249527U (en) | 2018-12-30 | 2018-12-30 | A kind of battery module and battery pack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822274857.9U CN209249527U (en) | 2018-12-30 | 2018-12-30 | A kind of battery module and battery pack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209249527U true CN209249527U (en) | 2019-08-13 |
Family
ID=67535644
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822274857.9U Active CN209249527U (en) | 2018-12-30 | 2018-12-30 | A kind of battery module and battery pack |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209249527U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114597572A (en) * | 2019-12-31 | 2022-06-07 | 宁德时代新能源科技股份有限公司 | Battery module, battery pack, device, and method for assembling battery module |
| WO2023098328A1 (en) * | 2021-11-30 | 2023-06-08 | 宁德时代新能源科技股份有限公司 | End plate, battery module, battery, and electrical device |
-
2018
- 2018-12-30 CN CN201822274857.9U patent/CN209249527U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114597572A (en) * | 2019-12-31 | 2022-06-07 | 宁德时代新能源科技股份有限公司 | Battery module, battery pack, device, and method for assembling battery module |
| CN114597572B (en) * | 2019-12-31 | 2024-01-26 | 宁德时代新能源科技股份有限公司 | Battery module, battery pack, device and method for assembling battery module |
| WO2023098328A1 (en) * | 2021-11-30 | 2023-06-08 | 宁德时代新能源科技股份有限公司 | End plate, battery module, battery, and electrical device |
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