CN104781947B - Battery module with two drawing plates and two clamping plates - Google Patents
Battery module with two drawing plates and two clamping plates Download PDFInfo
- Publication number
- CN104781947B CN104781947B CN201380058248.7A CN201380058248A CN104781947B CN 104781947 B CN104781947 B CN 104781947B CN 201380058248 A CN201380058248 A CN 201380058248A CN 104781947 B CN104781947 B CN 104781947B
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- Prior art keywords
- battery
- clamping plate
- battery module
- list pond
- layer
- Prior art date
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- 239000002131 composite material Substances 0.000 claims description 14
- 239000000463 material Substances 0.000 claims description 12
- 239000004033 plastic Substances 0.000 claims description 9
- 229920003023 plastic Polymers 0.000 claims description 9
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical group [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 claims description 8
- 229910001416 lithium ion Inorganic materials 0.000 claims description 8
- 239000004743 Polypropylene Substances 0.000 claims description 2
- 238000009413 insulation Methods 0.000 claims description 2
- -1 polypropylene Polymers 0.000 claims description 2
- 229920001155 polypropylene Polymers 0.000 claims description 2
- 238000005452 bending Methods 0.000 description 9
- 238000010586 diagram Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 229910000831 Steel Inorganic materials 0.000 description 5
- 230000005611 electricity Effects 0.000 description 5
- 239000000835 fiber Substances 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 210000001331 nose Anatomy 0.000 description 2
- 239000004952 Polyamide Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 239000011258 core-shell material Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 230000011218 segmentation Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/24—Grouping of fuel cells, e.g. stacking of fuel cells
- H01M8/2465—Details of groupings of fuel cells
- H01M8/247—Arrangements for tightening a stack, for accommodation of a stack in a tank or for assembling different tanks
- H01M8/248—Means for compression of the fuel cell stacks
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/262—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders with fastening means, e.g. locks
- H01M50/264—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders with fastening means, e.g. locks for cells or batteries, e.g. straps, tie rods or peripheral frames
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/204—Racks, modules or packs for multiple batteries or multiple cells
- H01M50/207—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape
- H01M50/209—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for prismatic or rectangular cells
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/052—Li-accumulators
- H01M10/0525—Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/10—Primary casings; Jackets or wrappings
- H01M50/102—Primary casings; Jackets or wrappings characterised by their shape or physical structure
- H01M50/103—Primary casings; Jackets or wrappings characterised by their shape or physical structure prismatic or rectangular
-
- 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
- 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
- Y02E60/30—Hydrogen technology
- Y02E60/50—Fuel cells
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Battery Mounting, Suspending (AREA)
Abstract
A kind of battery module (200) is proposed, with drawing element (230), clamping plate (240) and multiple battery list ponds (100).Drawing element (230) and clamping plate (240) implement into encirclement battery list pond (100) in the mounted state.Clamping plate (240) has the type face of protrusion and implemented into relative to battery list pond (100) in an initial condition to be applied to pressure (150) on multiple battery list ponds (100) on the direction along battery module (200) longitudinal direction (231) in the mounted state.Clamping plate (240) has a layer (245), it implements into, and pressure (150) is distributed on a contact surface (130) in the battery list pond (100A) being adjacently positioned with clamping plate (240) of the layer (245) in the mounted state.
Description
The field of the invention
The present invention relates to a kind of battery module.The invention particularly relates to a kind of battery module for motor and a kind of use
In the battery unit of motor.
Prior art
Battery unit, can be for example with for providing in particular for electric car and the battery unit of hybrid electric vehicle
The lithium ion battery of electric energy and construct as follows：Multiple battery list ponds form a battery module and multiple battery modules are formed
One battery unit.The battery list pond of known prismatic, such as cuboid herein, they are due to life-span and operation reason quilt
It is assembled into battery module.Battery list pond can so be arranged when being assembled into battery module, i.e., be prismatic in battery list pond
Structure situation under battery list pond abutted against respectively by the larger side in two sides on adjacent battery list pond.In electricity
When Chi Danchi is assembled into battery module, the first electricity can be pressure is applied on the direction in adjacent battery list pond respectively herein
On Chi Danchi and last battery list pond, this can extend the life-span in each battery list pond.This causes, especially in lithium-ion electric
In the case of pond during the life-span in this battery list pond and the charge and discharge process that passes through increase number of times, it can be found that volume increases
Greatly, this can negatively affect the life-span in the battery list pond.Pressure on the battery list pond of battery module can resist single battery
The volume in single pond increases and therefore improves life-span and the effective power of battery list pond and battery module.
In order to provide corresponding pressure, for example, the metallic plate of bending can be provided on the corresponding side of battery module,
The metallic plate is tensioned by means of pulling element on the direction for the pressure to be applied.In order to ensure on the side positioned at battery module
Uniform pressure distribution on battery list pond at edge, is directed to each pressure elements, in battery on each side of battery module
One plate is set between single pond and pressure elements.The plate is, for example, stable steel plate, because corresponding pressure for example can be
Between 10kN and 15kN.Due to the mechanical load-bearing capacity of steel, steel is perfectly suitable for this plate.
DE102009000660A1 describes a kind of general structure of battery module, and the battery module is used for the confession of motor
Energy.
The general introduction of the present invention
Pass through the present invention and a kind of battery module is provided, it is characterised in that with weight more less than conventional battery modules, by
This less gross weight that especially two are realized motor vehicle in the case where this battery module to be used in motor vehicle.
Provide a kind of battery module and battery unit of the feature according to independent claims.The present invention expansion scheme by
Obtained in dependent claims and the following description.Battery module and battery unit are particularly useful for the energy supply to motor.
According in a first aspect, providing a kind of with drawing element, clamping plate and the battery module in multiple battery list ponds.
This, drawing element and clamping plate are implemented into, and battery list pond is surrounded in the mounted state, wherein, clamping plate phase in an initial condition
There is the type face of protrusion for battery list pond（Side profile）With implement into, in the mounted state along battery module longitudinal direction
Applied pressure on direction on multiple battery list ponds.Battery module is characterised by that clamping plate has layer, and the layer is implemented into,
By the battery list pond being disposed adjacent to clamping plate of pressure distribution to this layer under installment state（Contact）Contact surface on.
By this structure of clamping plate, can for example avoid using is used for the plate of the distribution pressure on battery list pond, by
This can save the corresponding weight of this pressure distribution plate.In the quality for example per pressure distribution plate for 300g and in every battery
In the case that unit has eight battery modules, in the case of every battery module has two pressure distribution plates, by cancelling pressure
Distribution grid, weight 4.8kg can be saved per battery unit.
Drawing element and clamping plate can be arranged especially mutual vertically in the mounted state.Layer on clamping plate can be with
Be elasticity and/or can plastically deform.In the case, the layer especially mechanically can be connected with clamping plate.For example may be used
So that layer is bonded on clamping plate or mechanically coupled with clamping plate by fixture.The layer will can be clamped in the mounted state
The pressure of plate is especially evenly distributed on the battery list pond of clamping plate arranged alongside.
Clamping plate has the type face of protrusion relative to adjacent battery list pond, means, clamping plate is in the shape being fitted without
It is bending under state.In one embodiment, the type face of clamping plate can for example describe one section of a circuit orbit or
One oval type face, wherein, clamping plate is so acted against on the first battery list pond, i.e., clamping plate acts against electricity thereon
The side surface in Chi Dan ponds is the tangent plane relative to clamping plate.
According to an embodiment, the layer being arranged on clamping plate has fibrous composite.
Fibrous composite for example can be the polyamide that fiber is strengthened, and it is for example with 30% glass fiber component.It is fine
Dimension composite has high mechanical strength, and thus it can be well suited for applying and using the pressure present in battery module
Under.
According to another embodiment, the layer being arranged on clamping plate has plastic material, wherein, fibrous composite bag
Enclose plastic material.
Plastic material be kernel in the case and fibrous composite be the core shell.This structure of layer can be real
Uniform pressure distribution of the pressure now applied by clamping plate on battery list pond.
According to another embodiment, plastic material has polypropylene.
Polyacrylic feature can be it plastically or be resiliently deformed that thus the layer is in clamping plate and arranged alongside
Battery list pond between so arrange or deform, that is, realize the uniform pressure distribution on battery Dan Chi side surfaces.
According to another embodiment, the layer is to implement with being electrically insulated.
It is achieved in, the clamping plate that can be made up of steel is separated by layer and the battery list pond of electric insulation.This can be outstanding
It improves the security when assembling and using battery module.This can also simplify the assembling process of battery module, because in folder
Additional layer tightly need not be set between plate and battery list pond.
According to another embodiment, layer is transverse to being longitudinally extending laterally with least dividing of battery module at one
The cross section that section ground narrows.
It can be said that the cross section narrowed in the horizontal may be embodied to the mating surface in the type face of the bending of clamping plate and attached
Plus the uniform pressure distribution on the battery list pond being adjacently positioned with clamping plate is realized on ground.Especially start in assembling process
When, when clamping plate is also under its original state and by pulling the clamping force of element also without at least in part against clamping
When the curved profile of plate is bent, the cross section that piecewise narrows can contribute for this, i.e., just when assembling process starts
Clamping force is not applied on small contact surface, but just the contact surface is extended.
According to another embodiment, each battery list pond in multiple battery list ponds is to rechargeable battery.
As being especially suitable for being used together with battery module described below above with rechargeable battery, because this battery
Module realizes being used for multiple times on longer time interval.
According to an embodiment, rechargeable battery it is lithium ion battery.
As implemented into above with battery module described below, so it pressure is applied to by pulling element and clamping plate
On battery list pond, that is, resist volume increase（Expansion）, such as its for lithium ion battery during its life-span this be typical.Pass through
It can reduce or even prevent the volume from increasing, thus also improve the life-span of lithium ion battery.
According to another embodiment, battery list pond shapes prismaticly.
It means that the opposite face in battery list pond is extended parallel to each other, such as in the rectangle of battery list pond or
In the case of the structure of person's cuboid.Volume increase during the life-span of especially lithium ion battery can especially pass through electricity
The prismatic structure in Chi Dan ponds is greatly reduced.In this case, volume increase can be by the prismatic of battery list pond
Structure is produced, because the shell in battery list pond possibly can not prevent volume from increasing with the pressure of needs, with reduction or very
Volume is prevented to increase to complete.As can be reduced with battery module described below above or prevent to construct especially prismaticly
Into battery list pond volume increase, thus the battery list pond can have improve life-span.
In another aspect, a kind of battery unit for motor is provided, it has multiple as retouched above with following
The battery module stated.
Battery unit can be for example provided for drive motor as accumulator.Battery unit is particularly useful for by this
Plant the motor vehicle of motor driving.The weight for the battery unit saved by the structure of battery module in the case can be favourable
In the energy expenditure of this motor vehicle, because the weight of motor vehicle thus can also be reduced.
According to an embodiment, battery module shapes in the mounted state prismaticly.
It means that the clamping plate of battery module installed in battery unit in the state of due to by pull element apply
Clamping force by curved straight, wherein, elastic properties of materials of the bending based on clamping plate can from case of bending enter straight state.In electricity
The prismatic shape realized under the installment state of pond module can also be realized and economical space saving use or save in battery unit
Battery module is installed in space-saving way.
Embodiments of the invention are described referring to accompanying drawing.
Brief description
Fig. 1 shows the battery unit according to one embodiment.
Fig. 2 shows the battery module according to one embodiment.
Fig. 3 A show the schematic diagram under the state that is fitted without according to the battery module of one embodiment.
Fig. 3 B show the battery module schematic diagram in the mounted state according to one embodiment.
Fig. 4 A show the sectional view of the side view of the battery module according to one embodiment.
Fig. 4 B show the top view of the battery module according to one embodiment.
Fig. 5 shows the schematic diagram of the clamping plate for the battery module according to one embodiment.
Diagram in accompanying drawing is illustrated and not according to correct proportions.If used in following brief description of the drawings
Identical reference, then they are related to identical or similar element.
Embodiments of the present invention
Fig. 1 shows battery unit 300, wherein, battery unit has eight battery modules 200, wherein each battery module
With six battery list ponds 100.
Note, battery unit can also have or more or less than eight battery modules, and battery module can also have
Or more or less than six battery list ponds.
Fig. 2 shows the schematic diagram of the top view of battery module 200.Battery module 200 has six battery list ponds, they
It is arranged side by side on the longitudinal direction 231 of battery module.Battery list pond respectively has first voltage joint 110 and second voltage joint 120,
Wherein, second voltage joint of the first voltage joint in battery list pond respectively with adjacent battery list pond is so electrically connected, i.e., electric
The all batteries list pond 100 of pond module 200 forms series circuit, thus for battery module 200, forms first voltage joint
210 and second voltage joint 220.In the case, battery list pond or its voltage jointer are electrically connected with battery list pond connector 115
Connect.
Especially in the case of using rechargeable lithium ion battery, it can be led due to the increased number of times of charging process
The volume increase in the battery list pond of the cross section with rectangle is caused, wherein, in the embodiment illustrated in figure 2, each battery list pond
Volume increase is produced along battery module longitudinal direction 231.Thus the extension of for example whole battery module changes on longitudinal direction 231,
That is increase, and additionally the power in each battery list pond reduces due to volume increase.
In order to resist this volume increase, therefore pressure 150 must act upon on the side surface in battery list pond, wherein, pressure
The pressure direction of power 150 extends along the longitudinal direction 231 of battery module.
Battery module 200 has two drawing elements 230 for extending in the vertical, wherein, they each of drawing element
End respectively with a clamping plate 240 at tie point 235 it is mechanically connected.Two drawing elements 230 and two clamping plates 240
Six battery list ponds 100 of battery module 200 are surrounded in the case.Clamping plate 240 is with a type face bent and such as
This place arranges that is, the battery list pond positioned at edge contacts the outward flange in the type face of the bending of clamping plate, that is to say, that two folders
Point to each opposite clamping plate in each bending outward flange of tight plate.
In order to which the non-installment state of the clamping plate shown from Fig. 2 enters installment state, clamping plate is in tie point 235
Pressure is loaded on the direction of each opposite clamping plate in region, until two clamping plates are for example with straight type face（Walk
To）, thus it is contiguous to the battery list pond on clamping plate and is touched on its whole width, and then in clamping plate and drawing element
Between set up machinery connection.By preshaped or bending the type face of the clamping plate under non-installment state, in peace
Pressure is applied on battery list pond under dress state, wherein, clamping plate is each on the direction of opposite clamping plate to apply one
Pressure.It is possible thereby to avoid volume increase of the battery list pond on the longitudinal direction 231 of battery module 200.
Each clamping plate 240 has layer 245, and it is arranged in clamping plate between adjacent battery list pond 100a.Layer 245 can
The pressure of clamping plate 240 is uniformly distributed to the side surface in battery list pond to realize in the case, it is possible thereby to avoid passing through
Press damage of the power load to battery Dan Chi side surfaces.In this embodiment, therefore just refer to, be not one by steel
Or the clamping plate that other metals are made is contacted with one of them of battery list pond in face of the side surface of clamping plate.
Fig. 3 A show the detailed maps of a part for battery module under non-installment state.The layer 245 of clamping plate 240
First side surface 101 in battery list pond 100 of the surface 246 with being arranged adjacent to clamping plate 240 forms contact surface 130.In battery
Another adjacent battery list pond on second side surface 102 in single pond 100, it is for the sake of clarity not shown in Fig. 3 A.
Fig. 3 B show that one of battery module is corresponding with Fig. 3 A and illustrate, wherein, clamping plate 240 is located in figure 3b to be installed
Under state.The type face that clamping plate 240 is not bent, thus compared with Fig. 3 A, contact surface 130 and first side in battery list pond 100
Surface 101 extends on whole first side surface 101 in battery list pond 100.The surface 246 of layer 245 and especially layer 245 is herein
In the case of realize uniform pressure distribution of the pressure 150 on first side surface 101 in battery list pond 100.
Element of the layer 245 respectively as the adhesion on clamping plate 240 is shown in Fig. 2,3A and 3B, wherein, layer 245 is located at
Between clamping plate 240 and the battery list pond adjacent with clamping plate.
Fig. 4 A show clamping plate 240 and battery list pond 100a diagrammatic side view.Clamping plate 240 has layer in the case
245, wherein, layer 245 is encapsulated or coated clamping plate 240 and only exposes a segmentation of clamping plate 240, for first with drawing
Part formation is mechanically connected.Clamping plate for example can be to be welded to connect with the mechanical connection for pulling element.
Fig. 4 B show the diagrammatic top view of clamping plate 240 and two drawing elements 230, wherein, clamping plate 240 is installing shape
Abutted under state with layer 245 on battery list pond 100a.
Layer 245 is fixed with clamping plate 240 by means of two fixed convex noses in the case, wherein, fixed convex nose is worn respectively
A space of clamping plate is crossed, thus layer 245 is mechanically coupled with clamping plate 240.
Fig. 5 shows the schematic diagram of the clamping plate 240 with layer 245.Layer 245 has fibrous composite 248 and plastics material
Material 247, wherein, fibrous composite shows as the shell or cladding of layer 245 and and surrounds the modeling of the core as layer
Expect material 247.
Layer 245 has the cross section narrowed on horizontal the 241 of clamping plate 240, that is to say, that in the longitudinal direction of battery module
The first thickness 249a of layer be more than the second thickness 249b of layer also on the longitudinal direction of battery module.The thickness of layer 245 is herein
In the case of can on laterally 241 in the middle part of clamping plate be especially to reduce since the fringe region of clamping plate 240
And then again increase, until layer 245 or the relative edge of clamping plate 240.This can cause, and the surface 246 of layer has
The bending radius bigger than clamping plate 240.Thus it can especially be formed and be abutted against on surface 246 when assembling process starts
The contact surface of the increase in battery list pond.
In this embodiment, plastic material 247 can be more strongly plastically deformed than fibrous composite 248, thus whole
Individual layer 245 can be plastically deformed and thus surface 246 can be adapted to the side surface in adjacent battery list pond or with the side surface
Outline, thus realize uniform pressure distribution on adjacent battery list pond.
In other words, thus battery module as described above provides a kind of optimal pressure distribution by clamping plate, weight section
The combination being welded to connect with drawing element composition of processing request is saved and meets, wherein, but substitute and be welded to connect, also can be alternative
Ground uses mode connects for screw or other mechanical coupling or fixed connection between clamping plate and drawing element.Clamping plate can be with
It is made up of advance punching press and preformed spring metal plate, it is designed to the maximum spring force with such as 15kN.Clamping plate
It can be embedded in fibrous composite or in fiber composite, thus fiber forms a kind of fabric or knitwear, it
Between clamping plate and the battery list pond adjacent with clamping plate.The composite strengthened by fiber can be realized in clamping plate
Clamping or installment state under uniform pressure distribution.This can also be realized in such a way, i.e., the composite that fiber is strengthened
By pressure clamping plate it is horizontal be directed upwardly to clamping plate or the fringe region in adjacent battery list pond in.
Claims (11)
1. battery module (200), has:
Pull element (230);
Clamping plate (240);With
Multiple battery list ponds (100);
Wherein, drawing element (230) and clamping plate (240) are implemented into, surround battery list pond (100) in the mounted state;
Wherein, clamping plate (240) has the type face of protrusion relative to battery list pond (100) in an initial condition and implemented into,
There is straight type face and by pressure (150) along battery module (200) relative to battery list pond (100) in the mounted state
Longitudinal direction (231) direction on be applied on multiple battery list ponds (100);
Characterized in that,
Clamping plate (240) has a layer (245), and it implements into, and pressure (150) is distributed into the layer in the mounted state
(245) on a contact surface (130) in the battery list pond (100A) and adjacent to clamping plate (240) arranged.
2. battery module (200) according to claim 1,
Wherein, the layer (245) has a kind of fibrous composite (248).
3. battery module (200) according to claim 2,
Wherein, the layer (245) has a kind of plastic material (247);With
Wherein, the fibrous composite (248) surrounds the plastic material (247).
4. battery module (200) according to claim 3,
Wherein, the plastic material (247) has polypropylene.
5. the battery module (200) according to any one of claim 1 to 4,
Wherein, layer (245) the electric insulation ground is implemented.
6. the battery module (200) according to any one of claim 1 to 4,
Wherein, the layer (245) being transverse in the transverse direction (241) of the longitudinal direction (231) extension at least in battery module (200)
Piecewise has the cross section become narrow gradually.
7. the battery module (200) according to any one of claim 1 to 4, wherein, in multiple battery list ponds (100)
Each battery list pond (100) is to rechargeable battery.
8. battery module (200) according to claim 7,
Wherein, described rechargeable battery is lithium ion battery.
9. battery module according to claim 8,
Wherein, battery list pond (100) shape prismaticly.
10. for the battery unit (300) of motor,
With multiple battery modules (200) according to any one of claim 1 to 9.
11. battery unit (300) according to claim 10,
Wherein, battery module (200) shapes in the mounted state prismaticly.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102012220393.1 | 2012-11-08 | ||
| DE102012220393.1A DE102012220393A1 (en) | 2012-11-08 | 2012-11-08 | Battery module with two tension plates and two clamping plates |
| PCT/EP2013/069891 WO2014072119A1 (en) | 2012-11-08 | 2013-09-25 | Battery module with two traction plates and two clamping plates |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104781947A CN104781947A (en) | 2015-07-15 |
| CN104781947B true CN104781947B (en) | 2017-10-17 |
Family
ID=49231484
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201380058248.7A Active CN104781947B (en) | 2012-11-08 | 2013-09-25 | Battery module with two drawing plates and two clamping plates |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN104781947B (en) |
| DE (1) | DE102012220393A1 (en) |
| WO (1) | WO2014072119A1 (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102016221817A1 (en) * | 2016-11-08 | 2018-05-09 | Robert Bosch Gmbh | Battery module with a plurality of battery cells and battery |
| DE102017209612A1 (en) * | 2017-06-07 | 2018-12-13 | Bayerische Motoren Werke Aktiengesellschaft | Battery module, in particular for a motor vehicle, with at least one force-loaded battery cell and at least one LWRT intermediate layer |
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| DE102019125382A1 (en) * | 2019-09-20 | 2021-03-25 | Audi Ag | Battery with a pressure-limiting device, functional device with a battery and method for pressure-limiting |
| DE102020130835A1 (en) * | 2020-11-23 | 2022-05-25 | Audi Aktiengesellschaft | Energy storage device for storing electrical energy, method for producing an energy storage device and motor vehicle |
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| DE102004027694A1 (en) * | 2004-02-05 | 2005-08-25 | Daimlerchrysler Ag | Fuel cell stack has elements clamped together using convex dish shape spring elements loaded by a clamping band |
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| DE102005018058A1 (en) * | 2005-04-19 | 2006-10-26 | P 21-Power For The 21St Century Gmbh | End plate for use in chemical or electrochemical reactor, has reinforcing unit formed according to tensions and deformations, so that unit brings and holds contact surface in given form suitable for forming stack part |
| US8815429B2 (en) * | 2009-01-12 | 2014-08-26 | A123 Systems Llc | Busbar supports and methods of their use for battery systems |
| DE102009000660A1 (en) | 2009-02-06 | 2010-08-12 | Robert Bosch Gmbh | battery module |
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- 2013-09-25 CN CN201380058248.7A patent/CN104781947B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
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| DE102004027694A1 (en) * | 2004-02-05 | 2005-08-25 | Daimlerchrysler Ag | Fuel cell stack has elements clamped together using convex dish shape spring elements loaded by a clamping band |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104781947A (en) | 2015-07-15 |
| DE102012220393A1 (en) | 2014-05-08 |
| WO2014072119A1 (en) | 2014-05-15 |
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