CN209496936U - Battery modules - Google Patents
Battery modules Download PDFInfo
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- CN209496936U CN209496936U CN201920461091.7U CN201920461091U CN209496936U CN 209496936 U CN209496936 U CN 209496936U CN 201920461091 U CN201920461091 U CN 201920461091U CN 209496936 U CN209496936 U CN 209496936U
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- battery
- battery cell
- explosion
- proof valve
- protective plate
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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 involves energy-storage travelling wave tube field more particularly to a kind of battery modules, comprising: battery module, the battery module include multiple battery cells, and the battery cell is provided with explosion-proof valve；Protective plate is mutually fixed with the battery module；Multiple guiding grooves are provided on the protective plate, the multiple guiding groove is towards the explosion-proof valve, and the guiding groove and the explosion-proof valve correspond, for guiding the flow direction of the flame sprayed in the battery cell.The application can flow to the direction far from passenger by the way that guiding groove is arranged on setting protective plate and protective plate with pilot flame, so that passenger be protected to preserve from.
Description
Technical field
This application involves energy-storage travelling wave tube field more particularly to a kind of battery modules.
Background technique
With the development of electric car, the safety problem of battery is increasingly prominent.It is unsmooth or long in generation vehicle collision, heat dissipation
When time service, the phenomenon that being easy to happen battery catches fire, passenger and traffic safety are influenced.In the prior art, battery list
The explosion-proof valve of body upward, that is, is directly toward passenger above battery pack；When thermal runaway occurs for battery cell, battery cell release
Energy, flame erupt upwards, directly threaten the life security of passenger.
Utility model content
This application provides a kind of battery modules, to protect passenger safety when unexpected flame occurs for battery.
This application provides a kind of battery modules, comprising:
Battery module, the battery module include multiple battery cells, and the battery cell is provided with explosion-proof valve；
Protective plate is mutually fixed with the battery module；Multiple guiding grooves, the multiple guidance are provided on the protective plate
Slot is towards the explosion-proof valve, and the guiding groove and the explosion-proof valve correspond, and spray for guiding in the battery cell
Flame flow direction.
Preferably, the multiple battery cell of the battery module is along the vertical direction and/or horizontal direction arranges.
Preferably, the protective plate extends along the orientation of the battery cell, and the protective plate blocks the battery
The explosion-proof valve of all battery cells in module.
Preferably, the protective plate includes ontology and multiple flame barriers；
Multiple openings are provided on the ontology, the multiple flame barrier and the multiple opening are embedded correspondingly
In the multiple opening；
The shape of the opening is identical as the outer contour shape of the flame barrier；
The guiding groove is arranged in the flame barrier.
Preferably, the first relief portion and the second relief portion are provided on the ontology；
First relief portion and second relief portion are thin structure；
Each corresponding first relief portion of the explosion-proof valve and two the second relief portion；
First relief portion is for avoiding the explosion-proof valve；
Two second relief portion are located at the two sides of first relief portion, for avoid high voltage connections and/
Or sampling line.
Preferably, the protective plate further includes upper fixed part and lower fixed part；
Fixed portion is used to cooperate with the top surface of the battery cell；
The lower fixed part is for the bottom surface with the battery cell.
Preferably, the top and bottom of the battery cell are parallel；
Fixed portion extends along the direction where the top surface to the battery cell of the battery cell；
The lower fixed part extends along the direction where the bottom surface to the battery cell of the battery cell.
Preferably, fixed portion is also along the top of the battery cell away from the side where the battery cell
To extension, so that fixed portion can be overlapped with the top surface of the battery cell of another battery module；
The lower fixed part extends also along the bottom of the battery cell away from the direction where the battery cell,
So that the lower fixed part can be overlapped with the bottom surface of the battery cell of another battery module.
Preferably, the flame barrier includes bend external plate and internal partition；
The inner wall of the internal partition and the bend external plate intersects vertically, to form the guiding groove.
Preferably, the internal partition is enclosed in the side of the bend external plate far from the battery cell.
Preferably, the middle position of the bend external plate is arranged in the internal partition, by the bend external plate point
It is divided into the first extension and the second extension extended to two different directions；
First face of first extension and the internal partition surrounds the first guiding groove, first guiding groove with it is described
The explosion-proof valve of battery module cooperates；
Second face of second extension and the internal partition surrounds the second guiding groove, second guiding groove with it is another
The explosion-proof valve of a battery module cooperates.
Preferably, the bend external plate is bent to form up-narrow and down-wide shape.
Preferably, the ontology is injection molding.
Preferably, the material of the flame barrier is mica.
Preferably, the protective plate is fixed on the battery module by structure glue.
Technical solution provided by the present application can achieve it is following the utility model has the advantages that
For battery modules provided herein by the way that guiding groove is arranged on setting protective plate and protective plate, guiding groove is corresponding
Explosion-proof valve, when thermal runaway occurs for battery cell, the energy that discharges from explosion-proof valve position, that flame is guided slot institute pilot flow direction is remote
Direction from passenger improves the safety of passenger；In addition, by the way that multiple guiding grooves are arranged, each guiding groove is one corresponding
Explosion-proof valve, avoids the battery cell initiation that thermal runaway has occurred and heat mistake also occurs for the adjoining battery cell of its explosion-proof valve
Control.
It should be understood that the above general description and the following detailed description are merely exemplary, this can not be limited
Application.
Detailed description of the invention
It, below will be to specific in order to illustrate more clearly of the application specific embodiment or technical solution in the prior art
Embodiment or attached drawing needed to be used in the description of the prior art be briefly described, it should be apparent that, it is described below
Attached drawing is some embodiments of the application, for those of ordinary skill in the art, before not making the creative labor
It puts, is also possible to obtain other drawings based on these drawings.
Fig. 1 is the structural schematic diagram of the first battery modules provided by the embodiment of the present application；
Fig. 2 is the Structure explosion diagram of the first battery modules provided by the embodiment of the present application；
Fig. 3 is the explosive view of battery cell；
Fig. 4 is the sectional view that electrode assembly is takeup type structure；
Fig. 5 is the sectional view that electrode assembly is laminated structure；
Fig. 6 is the structural schematic diagram of second of battery modules provided by the embodiment of the present application；
Fig. 7 is the Structure explosion diagram of second of battery modules provided by the embodiment of the present application；
Fig. 8 is the structural schematic diagram of the first protective plate；
Fig. 9 is the partial enlarged view of Fig. 8；
Figure 10 is the structural schematic diagram of the first flame barrier；
Figure 11 is the Structure explosion diagram of the third battery modules provided by the embodiment of the present application；
Figure 12 is the structural schematic diagram of second of protective plate；
Figure 13 is the Structure explosion diagram of second of protective plate；
Figure 14 is the partial enlarged view of Figure 13；
Figure 15 is the structural schematic diagram of second of flame barrier；
Figure 16 is the structural side view of the third battery modules provided by the embodiment of the present application；
Figure 17 is the sectional view along A-A of Figure 16；
Figure 18 is the Structure explosion diagram of the 4th kind of battery modules provided by the embodiment of the present application；
Figure 19 is the structural schematic diagram of the 4th kind of battery modules provided by the embodiment of the present application；
Figure 20 is the structural side view of the 4th kind of battery modules provided by the embodiment of the present application；
Figure 21 is the B-B direction cross-sectional view of Figure 20.
Appended drawing reference:
1- battery module；
11- battery cell；
111- electrode assembly；
The first pole piece of 111a-；
The second pole piece of 111b-；
111c- diaphragm；
111d- flat horizontal surface；
112- battery case；
112a- first surface；
112b- second surface；
113- electrode terminal connector；
114- cover board；
115- electrode terminal；
12- end plate；
13- high voltage connections；
14- explosion-proof valve；
2- protective plate；
21- ontology；
211- opening；
The first relief portion of 212-；
The second relief portion of 213-；
The upper fixed part of 214-；
214a- third extension；
The 4th extension of 214b-；
Fixed part under 215-；
The 5th extension of 215a-；
The 6th extension of 215b-；
22- flame barrier；
221- guiding groove；
The first guiding groove of 221a-；
The second guiding groove of 221b-；
222- bend external plate；
The first extension of 222a-；
The second extension of 222b-；
223- internal partition.
The drawings herein are incorporated into the specification and forms part of this specification, and shows the implementation for meeting the application
Example, and together with specification it is used to explain the principle of the application.
Specific embodiment
It is clearly and completely described below in conjunction with technical solution of the attached drawing to the application, it is clear that described implementation
Example is some embodiments of the present application, instead of all the embodiments.Based on the embodiment in the application, ordinary skill
Personnel's every other embodiment obtained without making creative work, shall fall in the protection scope of this application.
In the description of the present application, arrow x direction is length direction in all attached drawings, and arrow y direction is width
Direction is spent, arrow z 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.
As depicted in figs. 1 and 2, the embodiment of the present application provides a kind of battery modules, including battery module 1, a battery
Mould group may include multiple battery modules 1, and in embodiment shown in FIG. 1, battery modules include a battery module 1.Battery mould
Block 1 includes multiple battery cells 11, and battery cell 11 is provided with explosion-proof valve 14 (referring to Fig. 2).
As shown in figure 3, battery cell 11 include electrode assembly 111, battery case 112, electrode terminal connector 113, with
And cover board 114.Battery case 112 can have hexahedral shape or other shapes.Battery case 112 has accommodate electrod component
111 and electrolyte inner space, and battery case 112 have opening.Electrode assembly 111 is contained in battery case 112,
The covering opening of cover board 114, and for electrode assembly 111 to be enclosed in battery case 112, electrode assembly 111 and electrode terminal
It is electrically connected between 115 by electrode terminal connector 113.In the present embodiment, there are two electrode terminal connectors 113, that is, distinguishes
For positive terminal sub- connecting member and negative terminal connector.Battery case 112 can be by such as aluminium, aluminium alloy or plastic or other material system
It makes.
Electrode assembly 111 is contained in battery case 112, and as shown in Figure 4 and Figure 5, electrode assembly 111 includes the first pole
Piece 111a, the second pole piece 111b and the diaphragm 111c being set between the first pole piece 111a and the second pole piece 111b.First pole
Piece 111a can be positive plate or negative electrode tab, and the polarity of the second pole piece 111b and the first pole piece 111a is on the contrary, correspondingly, the second pole
Piece 111b is negative electrode tab or positive plate.Wherein, diaphragm 111c is exhausted between the first pole piece 111a and the second pole piece 111b
Edge body.Electrode assembly 111 can be takeup type structure (such as Fig. 4), be also possible to laminated structure (such as Fig. 5).
Illustratively using the first pole piece 111a as positive plate, the second pole piece 111b is illustrated for negative electrode tab.In others
In embodiment, the first pole piece 111a can also be negative electrode tab, and the second pole piece 111b is positive plate.Positive active material is applied
It overlays on the coating area of positive plate, and negative electrode active material is applied on the coating area of negative electrode tab.Extend from coating area
Uncoated area is then used as tab, and electrode assembly 111 includes two tabs, i.e. anode ear and negative electrode lug, and anode ear is from positive plate
Extend coating area；Negative electrode lug extends from the coating area of negative electrode tab.Pass through positive terminal between anode ear and positive electrode terminal
Connector electrical connection, is electrically connected between negative electrode lug and negative electrode terminal by negative terminal connector.
In conjunction with Fig. 3 to Fig. 5, the substantially hexahedron structure of battery case 112, battery case 112 includes two first surfaces
The area of 112a and two second surface 112b, first surface 112a are greater than the area of second surface 112b.Each battery cell
11 two second surface 112b are faced each other in the horizontal direction the length direction of arrow x direction (such as in Fig. 3), often
Two first surface 112a of a battery cell 11 are faced each other along the vertical direction (arrow z direction).
As shown in figure 3, electrode assembly 111 is flat, and electrode group when electrode assembly 111 is takeup type structure
The outer surface of part 111 includes two flat horizontal surfaces 111d, two flat horizontal surface 111d (arrow z direction) phase along the vertical direction
It mutually faces, i.e. flat horizontal surface 111d and first surface 112a is faced each other, and flat horizontal surface 111d is roughly parallel to winding axis and is face
The maximum outer surface of product.Flat horizontal surface 111d can be opposed flattened surface, it is not required that be pure-surface.
As shown in figure 5, when electrode assembly 111 is laminated structure, the first pole piece 111a, diaphragm 111c and the second pole
Piece 111b is laminated along the vertical direction (arrow z direction), i.e. the surface of the first pole piece 111a and the mutual face first surface 112a
It is right.
Thickness direction of the electrode assembly 111 in charge and discharge process inevitably along the first pole piece 111a expands
It is (maximum along the direction expansive force perpendicular to flat horizontal surface 111d in the electrode assembly 111 of takeup type structure；In laminated structure
Electrode assembly 111 in, it is maximum along the stacking direction expansive force of the first pole piece 111a and the second pole piece 111b).
In the present embodiment, electrode assembly 111 can select takeup type structure or laminated structure.When electrode assembly 111
When for takeup type structure, flat horizontal surface 111d is towards vertical direction (arrow z direction).When electrode assembly 111 is stacked knot
When structure, the first pole piece 111a and the second pole piece 111b are laminated along the vertical direction (arrow z direction).As it can be seen that electrode assembly
111 either still use laminated structure using takeup type structure, and electrode assembly 111 applies battery case 112 maximum swollen
The direction of expansive force is both facing to vertical direction.
And in the prior art, in the battery cell 11 of battery module, electrode assembly 111 applies maximum to battery case 112
The direction of expansive force is all directed towards horizontal direction, the ruler due to the size of battery module 1 in the horizontal direction compared to vertical direction
It is very little big more (for example, the chassis height size by vehicle is limited, to need more battery cells 11 heap in the horizontal direction
Folded, expansive force accumulation is big), therefore, the expansive force that existing battery module is subject in the horizontal direction is very big, it is therefore desirable in electricity
Very thick end plate is arranged to resist expansive force in the horizontal direction two sides of pond module, and end plate thickeies the energy that can reduce battery module
Metric density.And in the present embodiment, the direction that electrode assembly 111 applies maximum swelling power to battery case 112 is directed towards vertical side
To, and 11 numbers of the battery cell stacked on vertical direction are less, therefore compared with the prior art, can greatly reduce battery mould
The maximum swelling power of block.
In addition, since battery cell 11 can also generate gas inside battery case 112 in charge and discharge process, generation
Gas can apply active force to battery case 112, expand outward to aggravate battery case 112.Due to the first table of the application
The area of face 112a is greater than the area of second surface 112b, and two first surface 112a in battery cell 11 are along vertical side
The maximum force direction applied to the gas for facing each other, therefore generating to battery case 112 is also directed towards vertical direction.Phase
Than further reducing the maximum swelling power of battery module 1 in the prior art.
Referring concurrently to Fig. 1 and Fig. 2, battery modules 1 further include end plate 12, setting multiple battery units 11 in the horizontal direction
The both ends of (X-direction).It is electrically connected between each battery cell 11 by high voltage connections 13.
Battery modules further include protective plate 2, are fixed with 1 phase of battery module.Multiple guiding grooves 221 are provided on protective plate 2
(referring to Fig. 8), multiple guiding grooves 221 are towards explosion-proof valve 14, and guiding groove 221 and explosion-proof valve 14 correspond, for guiding electricity
The flow direction of the flame sprayed in pond monomer 11.
In the environment of automobile generation strong collision or power battery generation heat dissipation are unsmooth, work long hours, it is easy to happen
The phenomenon that battery catches fire, can be flowed to by the setting of guiding groove 221 on above-mentioned protective plate 2 and protective plate 2 with pilot flame
Direction far from passenger, so that passenger be protected to preserve from.Preferably, battery modules are set as the mode that battery core lies low, that is,
The top and bottom of battery cell 11 are parallel to each other, and after being mounted in battery case, top and bottom are substantially parallel to battery
Bottom face and top surface.In this way, after battery case is installed on vehicle, the opening of guiding groove 221 can be made downward, one
There is a phenomenon where battery catches fires for denier, can guide flame to flowing away downwards, avoid injury passenger.
In the present embodiment, multiple battery cells 11 are along the vertical direction and/or horizontal direction arranges.Such as Fig. 1 and such as Fig. 2 institute
Show, is only arranged in the horizontal direction for multiple battery cells 11, in Fig. 1 and Fig. 2, the number of battery cell 11 is seven, but not
As limit.
As shown in Figure 6 and Figure 7, multiple battery cells 11 are along the vertical direction and/or horizontal direction arranges, specifically, this reality
The upper arrangement seven in the horizontal direction of battery cell 11 in example is applied, and the battery module 1 in Fig. 6 and Fig. 7 is two, along vertical
Direction stacks.Certainly, quantity, length, height, volume of battery cell 11 etc. can be adjusted as needed.
In the present embodiment, battery module 1 further includes end plate 12, is located at multiple battery cells 11 (example in the horizontal direction
Such as, the length direction of arrow X meaning) both ends, for multiple battery cells 11 to be fixed.When multiple 11 shapes of battery cell
When at two layers, the both ends of upper and lower two layers of multiple battery cells 11 in the horizontal direction are provided with end plate 12.
Preferably, protective plate 2 extends along the orientation of battery cell 11, and protective plate 2 blocks all in battery module 1
The explosion-proof valve 14 of battery cell 11.That is the explosion-proof valve 14 that blocks all battery cells 11 of battery module 1 of protective plate 2.Pass through this
Kind design, the battery cell 11 that thermal runaway can occur to avoid any one cause and the adjoining battery list of its explosion-proof valve 14
Thermal runaway also occurs for body 11.
In the present embodiment, protective plate 2 can be fixed on battery module 1 by structure glue.
Referring to Fig. 8 and Fig. 9, it is preferable that protective plate 2 includes ontology 21 and multiple flame barriers 22.It is provided on ontology 21 more
A opening 211, multiple flame barriers 22 are embedded in multiple openings 211 correspondingly with multiple openings 211.The shape of opening 211
Shape is identical as the outer contour shape of flame barrier 22, and guiding groove 221 is arranged in flame barrier 22.
It will be appreciated by persons skilled in the art that ontology 21 and flame barrier 22 can be integrally formed structure, and it is
Identical material, but since the position of flame generation is in the position where explosion-proof valve 14, so in the present embodiment, by ontology 21
Separate structure is set with flame barrier 22, flame barrier 22 is blocked into explosion-proof valve 14, and sets different for ontology 21 and flame barrier 22
Material, cost can not only be reduced in this way, also facilitate processing and realize the purpose of loss of weight.Specifically, ontology can be set
21 be the moulding of injection molding, to be able to satisfy the lightweight requirements of vehicle.
Further, flame barrier 22 uses the biggish material of fusing point, so that flame will not melt flame barrier 22.Specifically,
The material of flame barrier 22 in the present embodiment is that mica can achieve since the fusing point of mica is very high (about 1723 DEG C)
The fire resisting demand of flame barrier 22, and micarex has excellent processing performance.But the application is not limited to the reality of mica
Apply mode.
With continued reference to Fig. 8 and Fig. 9, it is preferable that be provided with the first relief portion 212 and the second relief portion 213 on ontology 21, open
Mouth 211 can be set in the position of the first relief portion 212, and flame barrier 22 is embedded in opening 211.Each explosion-proof valve 14 is corresponding
One the first relief portion 212 and two the second relief portion 213, the first relief portion 212 is for avoiding explosion-proof valve 14, so that explosion-proof valve
14 have enough installation spaces.Two the second relief portion 213 are located at the two sides of the first relief portion 212, for avoiding height
Press connector 13 and/or sampling line.In the present embodiment, the first relief portion 212 and the second relief portion 213 can be and add in ontology 21
Reduction processing is locally carried out after work molding, forms the thin structure of depressed.
Further, with continued reference to Fig. 8 and Fig. 9, ontology 21 also has upper fixed part 214 and lower fixed part 215.Upper fixation
Portion 214 is used to cooperate with the top surface of battery cell 11, and lower fixed part 215 is for the bottom surface with battery cell 11.By setting
It sets fixed part 214 and lower fixed part 215 and is jointly pre-fixed protective plate 2 using the top and bottom of battery cell 11
On battery cell 11, not only facilitate installation, it also can be solid by binder between protective plate 2 and the top cover 114 of battery cell 11
After fixed, it is further ensured that the fastness of connection.Moreover, the setting of upper fixed part 214 and lower fixed part 215, it also can be in vehicle
It repeatedly jolts and the distortion of ontology 21, deformation in oscillatory process, is avoided even to be broken.
Further, the top and bottom of battery cell 11 are parallel.Upper fixed part 214 along battery cell 11 top surface to
Direction where battery cell 11 extends, and lower fixed part 215 is along the side where the bottom surface to battery cell 11 of battery cell 11
To extension.In this way, upper fixed part 214 and lower fixed part 215 can limit the direction of flame and high-temperature particle diffusion, make flame
The direction far from passenger is flowed to along guiding groove 221 with high-temperature particle, further improves the security performance of battery modules.
As shown in Figure 10, as a specific implementation manner, flame barrier 22 may include bend external plate 222 and it is interior every
Plate 223, internal partition 223 and the inner wall of bend external plate 222 intersect vertically, to form guiding groove 221.In implementation shown in Fig. 10
In example, internal partition 223 is enclosed in the side of the separate battery cell 11 of bend external plate 222, therefore the flame barrier 22 is this
Set-up mode is suitable for battery modules the case where battery module 1 is arranged in unilateral side, the upper end closed of guiding groove 221, bottom opening,
Flame and high-temperature particle spray inside battery cell 11, are sprayed on internal partition 223, along the bottom opening stream of guiding groove 221
Out, the direction far from passenger is flowed to, in the present embodiment, the top of guiding groove 221 is closed by bend external plate 222, therefore, flame
It is flowed downward with high-temperature particle.
Preferably, bend external plate 222 is bent to form up-narrow and down-wide shape, and such shape can be in flame and high temperature
Particle is more unobstructed when flowing out along guiding groove 221.
As is illustrated by figs. 11 and 12, battery modules shown in Figure 11 and Figure 12 include two battery modules 1 being oppositely arranged.
Each battery module 1 includes multiple battery cells 11, and battery cell 11 is provided with explosion-proof valve 14.
Battery modules further include protective plate 2, are fixed with 1 phase of battery module.Multiple guiding grooves 221 are provided on protective plate 2,
Multiple guiding grooves 221 are towards explosion-proof valve 14, and guiding groove 221 and explosion-proof valve 14 correspond, for guiding in battery cell 11
The flow direction of the flame of ejection.
In the present embodiment, two battery modules 1 are oppositely arranged, i.e., the battery cell 11 of two battery modules 1 it is explosion-proof
Valve 14 is oppositely arranged, and protective plate 2 is located between the explosion-proof valve 14 of the battery cell 11 of two battery modules 1, two battery moulds
Block 1 shares the same protective plate 2.When the ring that strong collision or power battery generation heat dissipation are unsmooth, work long hours occurs for automobile
Under border, the phenomenon that being easy to happen battery catches fire, can be with by the setting of guiding groove 221 on above-mentioned protective plate 2 and protective plate 2
Pilot flame flows to the direction far from passenger, so that passenger be protected to preserve from.
As shown in Figure 12 to Figure 14, protective plate 2 may include ontology 21 and multiple flame barriers 22.It is provided on ontology 21 more
211 (as shown in figure 13) of a opening, multiple flame barriers 22 are embedded in multiple openings 211 correspondingly with multiple openings 211.
The shape of opening 211 is identical as the outer contour shape of flame barrier 22, and guiding groove 221 is arranged in flame barrier 22.
Preferably, the first relief portion 212 and the second relief portion 213 are provided on ontology 21, opening 211 can be set
The position of first relief portion 212, flame barrier 22 are embedded in opening 211.Each explosion-proof valve 14 corresponds to first relief portion
212 and two the second relief portion 213, the first relief portion 212 is for avoiding explosion-proof valve 14, so that explosion-proof valve 14 has enough peaces
Fill space.Two the second relief portion 213 are located at the two sides of the first relief portion 212, for avoid high voltage connections 13 and/
Or sampling line.In the present embodiment, the first relief portion 212 and the second relief portion 213 can be the part after 21 machine-shaping of ontology
Reduction processing is carried out, the thin structure of depressed is formed.Moreover, because battery module 1 is two be oppositely arranged, so at this
The direction of body 21 towards two battery modules 1 is provided with the first relief portion 212 and the second relief portion 213.
Further, referring to Fig.1 2, ontology 21 also has upper fixed part 214 and lower fixed part 215.Upper fixed part 214 is used
Cooperate in the top surface of battery cell 11, lower fixed part 215 is for the bottom surface with battery cell 11.By fixed in setting
Portion 214 and lower fixed part 215 are simultaneously jointly pre-fixed protective plate 2 on shell using the top and bottom of battery cell 11, no
Only facilitate installation, after capable of also fixing between protective plate 2 and the top cover of battery cell 11 by binder, is further ensured that connection
Fastness.Moreover, the setting of upper fixed part 214 and lower fixed part 215, also can vehicle repeatedly jolt and oscillatory process
In, avoid the distortion of ontology 21, deformation from being even broken.
Further, the top and bottom of battery cell 11 are parallel.Upper fixed part 214 along a battery modules 1 electricity
Direction where from the top surface of pond monomer 11 to the battery cell 11 of the side extends, lower fixed part 215 along battery cell 11 bottom
Direction where battery cell 11 towards the side extends.In this way, upper fixed part 214 and lower fixed part 215 can limit fire
The direction of flame and high-temperature particle diffusion, makes flame and high-temperature particle flow to the direction far from passenger along guiding groove 221, further
Improve the security performance of battery cell assemblies.
Upper fixed part 214 extends also along the top of battery cell 11 away from the direction where above-mentioned battery cell 11,
So that upper fixed part 214 can be overlapped with the top surface of the battery cell 11 of another battery module 1.That is, upper fixed part 214 includes
Third extension 214a and the 4th extension 214b (as shown in figure 14), third extension 214a is along the vertical direction (in Figure 14
Z to) projection and the projection of battery cell 11 along the vertical direction it is least partially overlapped, and the 4th extension 214b is along vertical
The projection and the projection of battery cell 11 along the vertical direction in direction (z to) in Figure 14 are least partially overlapped.
Lower fixed part 215 extends also along the bottom of battery cell 11 away from the direction where above-mentioned battery cell 11,
So that lower fixed part 215 can be overlapped with the bottom surface of the battery cell 11 of another battery module 1.That is, lower fixed part 215 includes
5th extension 215a and the 6th extension 215b, the 5th extension 215a along the vertical direction the projection of (z to) in Figure 14 with
The projection of battery cell 11 along the vertical direction is least partially overlapped, and the 6th extension 215b is along the vertical direction (in Figure 14
Z to) projection and the projection of battery cell 11 along the vertical direction it is least partially overlapped.
After being arranged in this way, upper fixed part 214 and lower fixed part 215 have extension to two sides, and a protective plate 2 can be same
When be fixed on two opposite battery modules 1, reduce the number of protective plate 2, and reduce installation difficulty.At this point, two
14 direction of explosion-proof valve of a battery cell 11 is opposite, towards horizontal direction (such as direction of arrow y meaning).When multiple batteries
Module 1 is formed after battery pack, is reduced number of parts and volume by shared protective plate 2, is improved the lightweight of battery pack
Performance.
Preferably, the middle position of external bending plate 222 is arranged in internal partition 223, as shown in figure 15, by bend external
Plate 222 is separated into the first extension 222a and the second extension 222b extended to two different directions.First extension 222a
The first guiding groove 221a, the explosion-proof valve 14 of the first guiding groove 221a and a battery module 1 are surrounded with the first face of internal partition 223
Cooperation.Second face of the second extension 222b and internal partition 223 surrounds the second guiding groove 221b, the second guiding groove 221b and another
The explosion-proof valve 14 of one battery module 1 cooperates.At this point, the explosion-proof valve 14 of two battery modules 1 is towards horizontal direction and opposite
Setting.This setup of flame barrier 22 can make a protective plate 2 simultaneously on two battery modules 1, reduce into
This.
As shown in figure 16, the situation of a protective plate 2 is shared for two battery modules 1.Referring concurrently to Figure 16 and Figure 17, prevent
The position of the corresponding explosion-proof valve 14 of fiery part 22, the phenomenon that in case of battery catches fire, flame can flow downward along flame barrier 22
It goes, to ensure that the safety of passenger.
Such as Figure 18 and Figure 19, in embodiment shown in Figure 18 and Figure 19, there are four battery module 1, protection for battery modules tool
The two sides of plate 2 are two battery modules 1, and two battery modules stack along the vertical direction, and in this implementation, one anti-
Backplate 2 can simultaneously protect four battery modules 1.It is understood that centered on protective plate 2, two sides can be with
Three layers of battery module 1 is stacked respectively, and those skilled in the art can set according to the actual situation.
It is the situation that four battery modules 1 share a protective plate 2 such as Figure 20 and Figure 21.It can be seen that a protective plate
The corresponding two sides of 2 flame barrier 22 include the position of two layers of explosion-proof valve 14 of two layers of battery module 1, in case of battery catches fire
Phenomenon, flame can flow away downward along flame barrier 22, to ensure that the safety of passenger.
The foregoing is merely preferred embodiment of the present application, are not intended to limit this application, for the skill of this field
For art personnel, various changes and changes are possible in this application.Within the spirit and principles of this application, made any to repair
Change, equivalent replacement, improvement etc., should be included within the scope of protection of this application.
Claims (15)
1. a kind of battery modules characterized by comprising
Battery module, the battery module include multiple battery cells, and the battery cell is provided with explosion-proof valve；
Protective plate is mutually fixed with the battery module；Multiple guiding grooves, the multiple guiding groove court are provided on the protective plate
To the explosion-proof valve, and the guiding groove and the explosion-proof valve correspond, for guiding the fire sprayed in the battery cell
The flow direction of flame.
2. battery modules according to claim 1, which is characterized in that the multiple battery cell edge of the battery module
Vertical direction and/or horizontal direction arrangement.
3. battery modules according to claim 2, which is characterized in that the protective plate is along the arrangement side of the battery cell
To extension, the protective plate blocks the explosion-proof valve of all battery cells in the battery module.
4. battery modules according to claim 1, which is characterized in that the protective plate includes ontology and multiple flame barriers；
Multiple openings are provided on the ontology, the multiple flame barrier is embedded correspondingly with the multiple opening described
In multiple openings；
The shape of the opening is identical as the outer contour shape of the flame barrier；
The guiding groove is arranged in the flame barrier.
5. battery modules according to claim 4, which is characterized in that be provided with the first relief portion and second on the ontology
Relief portion；
First relief portion and second relief portion are thin structure；
Each corresponding first relief portion of the explosion-proof valve and two the second relief portion；
First relief portion is for avoiding the explosion-proof valve；
Two second relief portion are located at the two sides of first relief portion, for avoiding high voltage connections and/or adopting
Line-transect.
6. battery modules according to claim 5, which is characterized in that the protective plate further includes upper fixed part and lower fixation
Portion；
Fixed portion is used to cooperate with the top surface of the battery cell；
The lower fixed part is for the bottom surface with the battery cell.
7. battery modules according to claim 6, which is characterized in that the top and bottom of the battery cell are parallel；
Fixed portion extends along the direction where the top surface to the battery cell of the battery cell；
The lower fixed part extends along the direction where the bottom surface to the battery cell of the battery cell.
8. battery modules according to claim 7, which is characterized in that fixed portion is also along the battery cell
It pushes up and extends away from the direction where the battery cell, so that fixed portion can be with the battery of another battery module
The top surface of monomer overlaps；
The lower fixed part extends also along the bottom of the battery cell away from the direction where the battery cell, so that
The lower fixed part can be overlapped with the bottom surface of the battery cell of another battery module.
9. battery modules according to claim 4, which is characterized in that the flame barrier include bend external plate and it is interior every
Plate；
The inner wall of the internal partition and the bend external plate intersects vertically, to form the guiding groove.
10. battery modules according to claim 9, which is characterized in that the internal partition is enclosed in the bend external plate
Side far from the battery module.
11. battery modules according to claim 9, which is characterized in that the internal partition is arranged in the bend external plate
Middle position, the bend external plate is separated into the first extension extended to two different directions and second and is extended
Portion；
First face of first extension and the internal partition surrounds the first guiding groove, first guiding groove and the battery
The explosion-proof valve of module cooperates；
Second face of second extension and the internal partition surrounds the second guiding groove, second guiding groove and another electricity
The explosion-proof valve of pond module cooperates.
12. battery modules according to claim 9, which is characterized in that the bend external plate is bent to form up-narrow and down-wide
Shape.
13. battery modules according to claim 4, which is characterized in that the ontology is injection molding.
14. battery modules according to claim 4, which is characterized in that the material of the flame barrier is mica.
15. battery modules according to claim 1, which is characterized in that the protective plate is fixed on described by structure glue
Battery module.
Priority Applications (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920461091.7U CN209496936U (en) | 2019-04-08 | 2019-04-08 | Battery modules |
| PCT/CN2020/083058 WO2020207329A1 (en) | 2019-04-08 | 2020-04-02 | Protection plate, battery cell assembly, battery module and vehicle |
| EP20787416.5A EP3809487B1 (en) | 2019-04-08 | 2020-04-02 | Protection plate, battery cell assembly, battery module and vehicle |
| JP2021551844A JP7247361B2 (en) | 2019-04-08 | 2020-04-02 | Protection plate, battery cell assembly, battery module and vehicle |
| PL20787416.5T PL3809487T3 (en) | 2019-04-08 | 2020-04-02 | Protection plate, battery cell assembly, battery module and vehicle |
| US17/138,639 US11955655B2 (en) | 2019-04-08 | 2020-12-30 | Protective plate, battery unit assembly, battery module group and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920461091.7U CN209496936U (en) | 2019-04-08 | 2019-04-08 | Battery modules |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209496936U true CN209496936U (en) | 2019-10-15 |
Family
ID=68157543
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920461091.7U Active CN209496936U (en) | 2019-04-08 | 2019-04-08 | Battery modules |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209496936U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020140643A1 (en) * | 2018-12-30 | 2020-07-09 | 宁德时代新能源科技股份有限公司 | Battery pack and vehicle |
| CN111584778A (en) * | 2020-04-30 | 2020-08-25 | 昆山宝创新能源科技有限公司 | Battery pack |
| WO2020207329A1 (en) * | 2019-04-08 | 2020-10-15 | 宁德时代新能源科技股份有限公司 | Protection plate, battery cell assembly, battery module and vehicle |
| CN113594611A (en) * | 2020-04-30 | 2021-11-02 | 蜂巢能源科技有限公司 | Battery module and vehicle |
-
2019
- 2019-04-08 CN CN201920461091.7U patent/CN209496936U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020140643A1 (en) * | 2018-12-30 | 2020-07-09 | 宁德时代新能源科技股份有限公司 | Battery pack and vehicle |
| WO2020207329A1 (en) * | 2019-04-08 | 2020-10-15 | 宁德时代新能源科技股份有限公司 | Protection plate, battery cell assembly, battery module and vehicle |
| US11955655B2 (en) | 2019-04-08 | 2024-04-09 | Contemporary Amperex Technology Co., Limited | Protective plate, battery unit assembly, battery module group and vehicle |
| CN111584778A (en) * | 2020-04-30 | 2020-08-25 | 昆山宝创新能源科技有限公司 | Battery pack |
| CN113594611A (en) * | 2020-04-30 | 2021-11-02 | 蜂巢能源科技有限公司 | Battery module and vehicle |
| CN113594611B (en) * | 2020-04-30 | 2023-08-18 | 蜂巢能源科技有限公司 | Battery module and vehicle |
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