CN209691826U - Power battery pack and electrokinetic cell system - Google Patents
Power battery pack and electrokinetic cell system Download PDFInfo
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- CN209691826U CN209691826U CN201920838848.XU CN201920838848U CN209691826U CN 209691826 U CN209691826 U CN 209691826U CN 201920838848 U CN201920838848 U CN 201920838848U CN 209691826 U CN209691826 U CN 209691826U
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- battery core
- plate
- single battery
- battery pack
- accommodating space
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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
This application discloses a kind of power battery pack and electrokinetic cell systems, are arranged in the first accommodating space of lower case by abutting single battery core, to reduce the weight and volume of power battery pack.Power battery pack includes multiple single battery cores, lower case, filling block, collector plate and upper cover；Single battery core includes the first end face, second end face and side surface being oppositely arranged, and is provided with tab in first end face；Lower case includes the first bottom plate and the first side plate along setting in the first bottom edge one week, first bottom plate and the first side plate form the first accommodating space, multiple single battery cores are arranged in first accommodating space, the single battery core of multiple strips mutually abuts to form battery core set, filling block is provided between the battery core set and first side plate, collector plate is arranged far from one end of the first side plate in single battery core, and tab is electrically connected with collector plate；Upper cover covers single battery core together with the lower case.
Description
Technical field
This application involves power battery technology fields, in particular to a kind of power battery pack and electrokinetic cell system.
Background technique
In the prior art, in assembled battery packet, battery pack can be assembled into battery modules first, is attached together by battery core collection
When at battery modules, individual support construction is needed to fix each single battery core and some other components are arranged with group
At battery modules, after assembling battery modules, then battery modules are mounted in protection shell again, to be combined into battery
Packet.In this battery pack structure, due to needing to be arranged individual fixed structure and components, the electricity being finally assembling to
The volume of Chi Bao is bigger, and weight is also bigger.
Utility model content
In order at least overcome above-mentioned deficiency in the prior art, the first purpose of the application is to provide a kind of power battery
Packet, the power battery pack includes multiple single battery cores, lower case, filling block, collector plate and upper cover；
The single battery core include the first end face being oppositely arranged, second end face and be located at first end face, second end face it
Between side surface, be wherein provided with tab in first end face；
The lower case includes the first bottom plate and the first side plate along setting in the first bottom edge one week, first bottom plate
The first accommodating space is formed with first side plate, multiple single battery cores are arranged in first accommodating space, multiple
The single battery core of strip mutually abuts to form battery core set, is provided with filling between the battery core set and first side plate
Block after the filling block is inserted between first side plate and the battery core set, makes the monomer in the battery core set
Battery core closely abuts each other and relatively fixed under the limitation of first side plate；
Collector plate is arranged far from one end of first bottom plate in the single battery core, and the tab is electrically connected with the collector plate
It connects；
Side of the collector plate far from the single battery core is provided with upper cover, and the upper cover is together with the lower case
The single battery core is covered.
Optionally, the multiple single battery core forms battery core set, and the fixed frame includes connecting plate and is arranged in institute
The positioning plate on connecting plate edge is stated, the connecting plate is arranged between the single battery core and the collector plate, the connection
Through-hole corresponding with the tab is provided on plate, the single battery core is electrically connected by the through-hole with the collector plate；Institute
It states positioning plate and periphery of the battery core set between lower case and the first accommodating space is set, by the battery core collection portion
Subpackage is wrapped up in.
Optionally, the fixed frame is integrally formed plastic frame body, far from the single battery core on the plastic frame body
Side be provided with collector plate setting area, collector plate setting is fixed in collector plate setting area with the collector plate
Connection, the positioning plate of the fixed frame is around battery core collection unification week.
Optionally, thermal isolation film is set between the single battery core and first bottom plate of the first accommodating space, it is described heat-insulated
Film region is greater than the second end face region of all single battery cores.
Optionally, it is additionally provided with first partition on first bottom plate, the first partition is by first accommodating space
It is divided into first area and second area, the single battery core setting is in the first area, and the thermal isolation film is by first bottom
Plate is located at the part covering of first area.
Optionally, the filling block is wedge block, and the wedge block is for making to be closely packed together between each single battery core.
Optionally, the filling block is elastic plastic member, and the size of the filling block is greater than the side table of the single battery core
The gap formed between face and first side plate.
Optionally, the lower case further includes second partition, the second partition and first side plate, first bottom
Plate together, forms at least two first accommodating spaces, and two first accommodating spaces are symmetrical arranged.
Optionally, the edge of the first side plate of the lower case extends to form first to the direction far from the first accommodating space
Stage body；The upper cover includes the second bottom plate and the second side plate along second bottom edge setting, second bottom plate and institute
It states and forms the second accommodating space between the second side plate, the edge of second side plate is to the direction far from second accommodating space
The second stage body is extended to form, first stage body is connect with second stage body.
The another object of the application, which also resides in, provides a kind of electrokinetic cell system, and the electrokinetic cell system includes battery pack
Manage circuit and the power battery pack as described in any of the above item.
In terms of existing technologies, the application has the advantages that
In the embodiment of the present application, single battery core is set up directly in the first accommodating space of lower case, each single battery core
It is closely close together in the first accommodating space, by lower case come securing unit battery core, so that lower case is serving as protective shell
While also function as battery modules fixed structure, in this way, eliminate be separately provided by single battery core composition battery modules structure,
Greatly reduce the volume of entire power battery pack and the weight of entire power battery pack.
Detailed description of the invention
Technical solution in ord to more clearly illustrate embodiments of the present application, below will be to needed in the embodiment attached
Figure is briefly described, it should be understood that the following drawings illustrates only some embodiments of the application, therefore is not construed as pair
The restriction of range for those of ordinary skill in the art without creative efforts, can also be according to this
A little attached drawings obtain other relevant attached drawings.
Fig. 1 is the structural schematic diagram of the battery modules of the prior art provided by the embodiments of the present application；
Fig. 2 is the overall structure diagram of power battery pack provided by the embodiments of the present application；
Fig. 3 is the configuration schematic diagram of power battery pack provided by the embodiments of the present application；
Fig. 4 is installation structure for power battery schematic diagram provided by the embodiments of the present application；
Fig. 5 is the structural schematic diagram of fixed frame provided by the embodiments of the present application；
Fig. 6 is the structural schematic diagram of wedge block setting provided by the embodiments of the present application；
Fig. 7 is one of the structural schematic diagram of lower case provided by the embodiments of the present application.
Icon: 10- battery modules；11- fixed structure；12- single battery core；20- power battery pack；21- upper cover；Under 22-
Shell；The first bottom plate of 221-；The first side plate of 222-；23- collector plate；24- fixed frame；241- connecting plate；242- positioning plate；
25- filling block.
Specific embodiment
To keep the purposes, technical schemes and advantages of the embodiment of the present application clearer, below in conjunction with the embodiment of the present application
In attached drawing, the technical scheme in the embodiment of the application is clearly and completely described, it is clear that described embodiment is
Some embodiments of the present application, instead of all the embodiments.The application being usually described and illustrated herein in the accompanying drawings is implemented
The component of example can be arranged and be designed with a variety of different configurations.
Therefore, the detailed description of the embodiments herein provided in the accompanying drawings is not intended to limit below claimed
Scope of the present application, but be merely representative of the selected embodiment of the application.Based on the embodiment in the application, this field is common
Technical staff's every other embodiment obtained without making creative work belongs to the model of the application protection
It encloses.
It should also be noted that similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined in a attached drawing, does not then need that it is further defined and explained in subsequent attached drawing.
In the description of the present application, it is also necessary to which explanation is unless specifically defined or limited otherwise, term " setting ",
" installation ", " connected ", " connection " shall be understood in a broad sense, for example, it may be fixedly connected, may be a detachable connection or one
Connect to body；It can be mechanical connection, be also possible to be electrically connected；It can be directly connected, it can also be indirect by intermediary
It is connected, can be the connection inside two elements.For the ordinary skill in the art, on being understood with concrete condition
State the concrete meaning of term in this application.
Power battery group technology has the developing history of more than ten years so far, and present group technology is quite mature.
Existing power battery pack 20 on the market, is either made of cylindrical electrical core, square electric cell or soft pack cell, is all by list
Body battery core is designed to battery modules 10, and battery modules 10 are then designed to power battery pack 20 again.Specifically, referring to Figure 1,
Fig. 1 is the structural schematic diagram of the battery modules 10 of single battery core composition, and single battery core 12 is being designed to power battery pack 20
In the process, it needs to be arranged individual fixed structure 11, then single battery core 12 is arranged on fixed structure 11, so that respectively
The position of a single battery core 12 is relatively fixed, is then again assembled into assembled battery modules 10 again using shell
Power battery pack 20.
In this assemble method, product design level is excessive.As the energy density requirement to electrokinetic cell system is more next
Higher, the lightweight demand of electrokinetic cell system improves year by year, and " battery core-mould group-battery pack 20 " designs and develops thinking
It has been difficult again to further increase lightweight delivery rate, and the cost declining demand that electric car caters to market also becomes increasingly conspicuous,
The more burst mode of product design level will necessarily bring complicated component structural and more assembling procedure, drop this space
It is inevitable limited.
Fig. 2, Fig. 3 and Fig. 4 are referred to, Fig. 2 is the overall structure signal of power battery pack 20 provided by the embodiments of the present application
Figure, Fig. 3 are the configuration schematic diagrams of power battery pack 20 provided by the embodiments of the present application, and Fig. 4 is that the embodiment of the present application provides
Installation structure for power battery schematic diagram.
The power battery pack 20 includes multiple single battery cores 12, lower case 22, filling block 25, collector plate 23 and upper cover
21。
The single battery core 12 include be oppositely arranged first end face, second end face and be located at first end face, second end face
Between side surface, be wherein provided with tab in first end face.That is, first end face and second end face respectively refer to monomer electricity
End face and the end face opposite with the setting end face of tab, the single battery core 12 on core 12 for tab to be arranged can be, example
Such as, rectangular cell.
The lower case 22 includes the first bottom plate 221 and the first side plate 222 for being arranged along 221 edge of the first bottom plate one week,
First bottom plate 221 and first side plate 222 form the first accommodating space, and multiple single battery cores 12 are arranged described
In first accommodating space, multiple single battery cores 12, which mutually abut, forms battery core set, the battery core set and described first
Filling block 25 is provided between side plate 222, the filling block 25 is inserted between first side plate 222 and battery core set
Afterwards, abut each other the single battery core 12 in the battery core set closely under the limitation of first side plate 222 simultaneously opposite
It is fixed.
Collector plate 23, the tab and the collection is arranged far from one end of first bottom plate 221 in the single battery core 12
Flowing plate 23 is electrically connected.The tab of single battery core 12 is electrically connected with collector plate 23, can by each single battery core 12 connect or
Person is together in parallel.
Side of the collector plate 23 far from the single battery core 12, is provided with upper cover 21, the upper cover 21 with it is described under
Shell 22 together covers the single battery core 12.
In the present embodiment, the material of lower case 22 is the light material with high mechanical strength, such as aluminum alloy materials etc..
In the present embodiment, single battery core 12 is arranged by forming the first accommodating space in lower case 22, and directly
It in first accommodating space, is leaning closely against each single battery core 12 together in the first accommodating space, and passes through filling block 25
Each single battery core 12 is fixed in the first accommodating space of lower case 22, upper cover 21 and lower case 22 are together by single battery core
12 coverings, and single battery core 12 is wrapped, to form the protection structure of single battery core 12.In this way, monomer can be reduced
Battery core 12 is individually composed the fixed structure 11 for securing unit battery core 12 being separately provided when battery modules 10, to reduce most
The weight and volume of the battery pack 20 obtained eventually.
It is because the setting of single battery core 12 exists that filling block 25 is provided between single battery core 12 and first side plate 222
There can be some gaps when in the first accommodating space between lower case 22, being provided with filling block 25 can be by these gap
Filling is full, thus preferably that single battery core 12 is fixed.Make single battery core 12 against fixing, can reduce the use of single battery core 12
Deformation in the process, so as to extend the service life of single battery core 12.
Fig. 5 is referred to, optionally, in the present embodiment, the power battery pack 20 further includes fixed frame 24, the fixation
Framework 24 includes connecting plate 241 and the positioning plate 242 that is arranged on 241 edge of connecting plate, described continuing with referring to fig. 4
Connecting plate 241 is arranged between the single battery core 12 and the collector plate 23, is provided on the connecting plate 241 and the pole
The corresponding through-hole of ear, the single battery core 12 are electrically connected by the through-hole with the collector plate 23；The positioning plate 242 is arranged
In periphery of the battery core set between connecting plate 241 and lower case 22, the battery core Set-dissection is wrapped up.
In the present embodiment, the connecting plate 241 and the positioning plate 242 can be integrated molding.Connecting plate 241 and afflux
Plate 23 is also possible to be integrally formed.In the present embodiment, fixed frame 24 is set, it can be by single battery core 12 close to first end face
Portion envelops are lived, to cooperate with lower case 22, the preferably position of securing unit battery core 12.
In addition, collector plate 23, can also be arranged above by setting fixed frame 24, will not be needed in collector plate 23 and list
The part that body battery core 12 contacts preferably is isolated between single battery core 12, plays the role of being dielectrically separated from.
Continuing with referring to Fig. 3, optionally, the fixed frame 24 is integrally formed plastic frame body, on the plastic frame body
Side far from the single battery core 12 is provided with collector plate 23 and area is arranged, and the setting of collector plate 23 is set in the collector plate 23
It sets in area, is fixedly connected with the collector plate 23, the positioning plate 242 of the fixed frame 24 is around battery core collection unification week.
In the present embodiment, fixed frame 24 is made of plastic material, plastic material have certain mechanical strength and compared with
Small weight, thus it is for fixing simultaneously, additionally it is possible to mitigate the weight of battery pack 20.
While fixed frame 24 wraps the outer surface of the battery core set of the formation of single battery core 12, also around battery core set
One week, in this manner it is possible to prevent single battery core 12 mobile in one week application active force of battery core set.
Optionally, it in the present embodiment, is set between the single battery core 12 and the first bottom plate 221 of first accommodating space
Thermal isolation film is set, the thermal isolation film region is greater than the second end face region of all single battery cores 12.
In the present embodiment, thermal isolation film is set between single battery core 12 and the first bottom plate 221 of the first accommodating space, it can be with
Barrier single battery core 12 is exchanged with the heat between lower case 22, to play the role of heat preservation.
In one embodiment, thermal isolation film can be made to extend at the first side plate 222, and by 222 part of the first side plate
Covering.In this way, the heat insulation effect of power battery pack 20 can be made more preferable.
Optionally, in the present embodiment, insulating cell can also be set in the first accommodating space.
In addition, single battery core 12 can arrange when being arranged in the first accommodating space according to series-parallel order.
Optionally, in the present embodiment, it is additionally provided with first partition on first bottom plate 221, the first partition is by institute
State the first accommodating space and be divided into first area and second area, the setting of single battery core 12 in the first area, it is described every
Hotting mask covers the part that first bottom plate 221 is located at first area.
In the present embodiment, the first area that separates forms the first accommodating space, second area for accommodate other zero
Component.In this way, other components can be integrated in power battery pack 20, keep components more regular.
Fig. 6 is referred to, optionally, in the present embodiment, the filling block 25 is wedge block, and the wedge block is each for making
It is closely packed together between single battery core 12.
In the present embodiment, wedge block is set by filling block 25, wedge block more easily can be mounted on single battery core
Between 12 and lower case 22, and it can make to fix stronger between single battery core 12.
Optionally, in the present embodiment, the filling block 25 is elastic plastic member, and the size of the filling block 25 is greater than described
The gap formed between the side surface of single battery core and first side plate.
It, can be to protect monomer while securing unit battery core 12 using the filling block 25 of elastic plastic member in the present embodiment
12 surface of battery core.
Fig. 7 is referred to, optionally, in the present embodiment, multiple first accommodating spaces can be set in lower case 22.For example,
The lower case 22 further includes second partition, the second partition with first side plate 222, first bottom plate 221 together,
At least two first accommodating spaces are formed, two first accommodating spaces can be symmetrical arranged.
In the present embodiment, multiple first accommodating spaces are set in lower case 22, the assembling side of battery pack 20 can be made
Formula is more flexible.
Continuing with referring to Fig. 3, optionally, in the present embodiment, the edge of the first side plate 222 of the lower case 22 is to separate
The direction of first accommodating space extends to form the first stage body；The upper cover 21 is including the second bottom plate and along second bottom edge
The second side plate being arranged forms the second accommodating space between second bottom plate and second side plate, second side plate
Edge extends to form the second stage body to the direction far from second accommodating space, and first stage body and second stage body connect
It connects.
In the present embodiment, lower case 22 can be connected with upper cover 21 by the first stage body and the second stage body, so that connection is more
Add convenient also more stable.
Optionally, in the present embodiment, attachment base can also be set in lower case 22, set needing for battery pack 20 to be mounted on
When standby upper, it can be installed by attachment base.Wherein, attachment base may be, but not limited to, flange.
In the present embodiment, in the first accommodating space, the first side plate may include Shell Plate and fixed plate, the fixed plate
Form the side wall of first accommodating space.At this point, filling block setting the fixed plate and the single battery core 12 it
Between.
The another object of the application, which also resides in, provides a kind of electrokinetic cell system, and the electrokinetic cell system includes battery pack
20 management circuits and the power battery pack 20 as described in any of the above item.
In conclusion in the embodiment of the present application, by forming the first accommodating space in lower case 22, thus by monomer electricity
Core is arranged in the first accommodating space with directly relying closely, thus, it is possible to save the knot of single battery core composition battery modules 10
Structure, therefore, the embodiment of the present application can reduce the volume and weight of power battery pack 20.In addition, in the present embodiment, due to monomer
Being leaning closely against together between battery core 12, therefore, in use, the deformation of generation can substantially subtract single battery core 12
It is small, in this way, the service life of single battery core 12 will greatly extend.
The above, the only various embodiments of the application, but the protection scope of the application is not limited thereto, it is any
Those familiar with the art within the technical scope of the present application, can easily think of the change or the replacement, and should all contain
Lid is within the scope of protection of this application.Therefore, the protection scope of the application shall be subject to the protection scope of the claim.
Claims (10)
1. a kind of power battery pack, which is characterized in that the power battery pack include the single battery cores of multiple strips, lower case,
Filling block, collector plate and upper cover；
The single battery core includes the first end face being oppositely arranged, second end face and between first end face, second end face
Side surface is wherein provided with tab in first end face；
The lower case includes the first bottom plate and the first side plate along setting in the first bottom edge one week, first bottom plate and institute
It states the first side plate and forms the first accommodating space, multiple single battery cores are arranged in first accommodating space, multiple strips
Single battery core mutually abut to form battery core set, be provided with filling block between the battery core set and first side plate, institute
It states after filling block is inserted between first side plate and the battery core set, the single battery core in the battery core set is made to exist
It is closely abutted each other under the limitation of first side plate and relatively fixed；
Collector plate is arranged far from one end of first bottom plate in the single battery core, and the tab is electrically connected with the collector plate；
Side of the collector plate far from the single battery core is provided with upper cover, and the upper cover is together with the lower case by institute
State single battery core covering.
2. power battery pack according to claim 1, which is characterized in that the power battery pack further includes fixed frame,
The fixed frame includes connecting plate and the positioning plate that is arranged on the connecting plate edge, and the connecting plate is arranged in the list
Between body battery core and the collector plate, through-hole corresponding with the tab is provided on the connecting plate, the single battery core is logical
The through-hole is crossed to be electrically connected with the collector plate；The positioning plate setting is located at lower case and the first accommodating in the battery core set
The battery core Set-dissection is wrapped up in periphery between space.
3. power battery pack according to claim 2, which is characterized in that the fixed frame is integrally formed frame of plastic
Body, the side on the plastic frame body far from the single battery core are provided with collector plate setting area, and the collector plate is arranged in institute
It states in collector plate setting area, is fixedly connected with the collector plate, the positioning plate of the fixed frame is unified around the battery core collection
Week.
4. power battery pack according to claim 1, which is characterized in that the single battery core and first accommodating space
The first bottom plate between thermal isolation film is set, the thermal isolation film region is greater than the second end face of all single battery cores
Region.
5. power battery pack according to claim 4, which is characterized in that be additionally provided on first bottom plate first every
First accommodating space is divided into first area and second area by plate, the first partition, and the single battery core is arranged in institute
First area is stated, the thermal isolation film covers the part that first bottom plate is located at first area.
6. power battery pack according to claim 1, which is characterized in that the filling block is wedge block, the wedge block
For making to be closely packed together between each single battery core.
7. power battery pack according to claim 6, which is characterized in that the filling block is elastic plastic member, described to fill out
The size of block is filled greater than the gap formed between the side surface and first side plate of the single battery core.
8. power battery pack according to claim 1, which is characterized in that the lower case further includes second partition, described
Second partition is together with first side plate, first bottom plate, at least two first accommodating spaces of formation, and two described first
Accommodating space is symmetrical arranged.
9. power battery pack according to claim 1, which is characterized in that the edge of the first side plate of the lower case is to remote
Direction from the first accommodating space extends to form the first stage body；The upper cover is including the second bottom plate and along second bottom edge
The second side plate being arranged forms the second accommodating space between second bottom plate and second side plate, second side plate
Edge extends to form the second stage body to the direction far from second accommodating space, and first stage body and second stage body connect
It connects.
10. a kind of electrokinetic cell system, which is characterized in that the electrokinetic cell system includes battery pack management circuit and such as right
It is required that the described in any item power battery packs of 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920838848.XU CN209691826U (en) | 2019-06-04 | 2019-06-04 | Power battery pack and electrokinetic cell system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920838848.XU CN209691826U (en) | 2019-06-04 | 2019-06-04 | Power battery pack and electrokinetic cell system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209691826U true CN209691826U (en) | 2019-11-26 |
Family
ID=68609471
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920838848.XU Active CN209691826U (en) | 2019-06-04 | 2019-06-04 | Power battery pack and electrokinetic cell system |
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| Country | Link |
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| CN (1) | CN209691826U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113270677A (en) * | 2021-04-28 | 2021-08-17 | 宁德新能源科技有限公司 | Battery module and electronic device |
| EP4376184A1 (en) * | 2022-11-24 | 2024-05-29 | SK On Co., Ltd. | Battery pack |
-
2019
- 2019-06-04 CN CN201920838848.XU patent/CN209691826U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113270677A (en) * | 2021-04-28 | 2021-08-17 | 宁德新能源科技有限公司 | Battery module and electronic device |
| CN113270677B (en) * | 2021-04-28 | 2024-07-09 | 宁德新能源科技有限公司 | Battery module and electronic device |
| EP4376184A1 (en) * | 2022-11-24 | 2024-05-29 | SK On Co., Ltd. | Battery pack |
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