CN209249528U - A kind of battery pack - Google Patents
A kind of battery pack Download PDFInfo
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- CN209249528U CN209249528U CN201822275435.3U CN201822275435U CN209249528U CN 209249528 U CN209249528 U CN 209249528U CN 201822275435 U CN201822275435 U CN 201822275435U CN 209249528 U CN209249528 U CN 209249528U
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- Prior art keywords
- battery
- adhesive member
- battery module
- battery cell
- box lid
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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Abstract
The utility model relates to a kind of battery packs, it include: cabinet, the cabinet includes upper box lid and lower box, the upper box lid and the lower box sealed set, it is arranged in the intracorporal multiple battery modules of the case, and first adhesive member, it is set to the upper surface of the battery module, the battery module is connected by first adhesive member with the upper box lid.It is different from the prior art, above-mentioned technical proposal is set to the upper surface of the battery module by the first adhesive member, the first adhesive member, and the battery module is connected by first adhesive member with the upper box lid.Battery module is connected by the first adhesive member with upper box lid, so that battery module and upper box lid form an entirety, reinforces the bonding strength between upper box lid and battery module, therefore improve the overall stiffness of battery module.
Description
Technical field
The utility model relates to battery technology field, in particular to a kind of battery pack.
Background technique
Battery pack includes cabinet and multiple battery modules, and cabinet includes upper box lid and lower box, and battery module includes
Multiple busbar connectors of multiple battery cells and the multiple battery cells of electrical connection.In the prior art, battery module is passed through into bolt
It is fixed in lower box, then covers upper box lid, complete the assembly of battery pack.But upper box lid there is no and battery module phase
Connection, i.e., be separated from each other, therefore the overall stiffness of battery module is lower, in vibration test between upper box lid and battery module
Multiple busbar connectors of middle battery module are easy to happen fracture and make battery module that short circuit occur, and then cause battery pack kindling or quick-fried
It is fried.
Utility model content
For this reason, it may be necessary to provide a kind of battery pack, only it is connected with lower box for solving upper box lid in the prior art, leads
The technical issues of cause can not pass through vibration test.
To achieve the above object, a kind of battery pack is inventor provided, comprising:
Cabinet, the cabinet include upper box lid and lower box, the upper box lid be located at the top of the lower box and with
The lower box sealed set；
It is arranged in the intracorporal multiple battery modules of the case；And
First adhesive member, is set to the upper surface of the battery module, and the battery module is bonded by described first
Component is connected with the upper box lid.
As a kind of preferred structure of the utility model, the battery module includes battery cell arrangement architecture, the electricity
Pond monomer arrangement architecture includes the more of the multiple battery cells arranged in the horizontal direction and the multiple battery cell of electrical connection
A busbar connector；
The battery cell includes electrode assembly and battery case, and the electrode assembly is contained in the battery case,
The electrode assembly include the first pole piece, the second pole piece and be set between first pole piece and second pole piece every
Film；
The electrode assembly be takeup type structure and be it is flat, the outer surface of the electrode assembly includes two flat
Face, two flat horizontal surfaces face each other along the vertical direction；Or, the electrode assembly be laminated structure, first pole piece,
The diaphragm and second pole piece are vertically stacked；
The battery case includes two first surfaces and two second surfaces, and the area of the first surface is greater than described
The area of second surface；Described two second surfaces in each of the battery cell arrangement architecture battery cell are along institute
It states horizontal direction to face each other, described two first surfaces in each of described battery cell arrangement architecture battery cell
It is faced each other along the vertical direction.
As a kind of preferred structure of the utility model, the first surface of the battery cell towards the upper box lid
It is contacted with first adhesive member, the battery cell is connected by first adhesive member with the upper box lid.
As a kind of preferred structure of the utility model, the battery module includes at least two battery cell arrangements
Structure, at least two battery cell arrangement architectures are stacked along the vertical direction.
As a kind of preferred structure of the utility model, the battery module further includes band, described in the band encirclement
The periphery of battery cell arrangement architecture, the band include two long sides and two short sides, the long side and the first surface
It faces each other and extends along the horizontal direction, the short side faces each other with the second surface and prolongs along the vertical direction
It stretches.
As a kind of preferred structure of the utility model, the battery module is provided at least two bands, at least
Two bands are spaced apart.
As a kind of preferred structure of the utility model, the two neighboring long side above the first surface it
Between form the first groove, first adhesive member is set in first groove and extends along the horizontal direction.
As a kind of preferred structure of the utility model, the inner surface of the upper box lid is provided with protrusion, the protrusion with
First groove is oppositely arranged, and the protrusion and first adhesive member bond.
As a kind of preferred structure of the utility model, the protrusion is protruded into first groove, first bonding
The thickness of component is less than the thickness of the long side.
As a kind of preferred structure of the utility model, the battery pack further includes being set to the following table of the battery module
The lower surface of second adhesive member in face, the battery module is connected by second adhesive member with the lower box.
As a kind of preferred structure of the utility model, the two neighboring long side below the first surface it
Between form the second groove, second adhesive member is set in second groove and extends along the horizontal direction.
As a kind of preferred structure of the utility model, the battery module further includes two end plates, is respectively arranged at institute
The both ends along the horizontal direction of battery cell arrangement architecture are stated, the band surrounds the battery cell arrangement architecture and institute
The periphery of two end plates is stated, the top surface of the end plate is provided with protrusion, and the protrusion protrudes from the upper surface of the battery module
And between the two neighboring long side.
As a kind of preferred structure of the utility model, each battery module is provided with two bands, described
Upper box lid is provided with multiple protrusions, and multiple protrusions correspond respectively to the described first recessed of each battery module
Slot.
It is different from the prior art, above-mentioned technical proposal is set to the electricity by the first adhesive member, the first adhesive member
The upper surface of pond module, the battery module are connected by first adhesive member with the upper box lid.Battery module is logical
It crosses the first adhesive member to be connected with upper box lid, so that battery module and upper box lid form an entirety, reinforces upper box lid and electricity
Bonding strength between the module of pond, therefore improve the overall stiffness of battery module.
Detailed description of the invention
Fig. 1 is the explosive view of battery pack described in specific embodiment；
Fig. 2 is the structural schematic diagram of upper box lid described in specific embodiment；
Fig. 3 is the structural schematic diagram of the battery module after busbar connector described in specific embodiment is electrically connected with battery cell；
Fig. 4 is the explosive view of battery module described in specific embodiment；
Fig. 5 is the explosive view of battery cell described in specific embodiment；
Fig. 6 is the sectional view that electrode assembly described in specific embodiment is takeup type structure；
Fig. 7 is the sectional view that electrode assembly described in specific embodiment is laminated structure；
Fig. 8 is the cross-sectional view of battery pack described in specific embodiment；
Fig. 9 is the enlarged drawing in Fig. 8 at A；
Figure 10 is the structural schematic diagram of end plate described in specific embodiment.
Description of symbols:
1, upper box lid,
11, protrusion,
2, battery module,
20, battery cell arrangement architecture,
21, battery cell,
211, electrode assembly,
2111, the first pole piece,
2112, the second pole piece,
2113, diaphragm,
2114, flat horizontal surface,
212, battery case,
2121, first surface,
2122, second surface,
213, electrode terminal connector,
214, cover board,
215, electrode terminal,
22, band,
221, long side,
222, short side,
23, the first groove,
24, end plate,
It is 241, raised,
242, band limiting slot,
25, insulating part,
26, busbar connector,
3, lower box,
4, the first adhesive member,
5, the second adhesive member.
Specific embodiment
Technology contents, construction feature, the objects and the effects for detailed description technical solution, below in conjunction with specific reality
It applies example and attached drawing is cooperated to be explained in detail.
In the description of the present application unless specifically defined or limited otherwise, term " first ", is only used for retouching " second "
The purpose stated, is not understood to indicate or imply relative importance；Unless otherwise prescribed or explanation, term " multiple " refer to two
It is a above including two；Term " connection ", " fixation " etc. shall be understood in a broad sense, for example, " connection " may be a fixed connection,
It can be and be detachably connected, or be integrally connected, or electrical connection；It can be directly connected, it can also be indirect by intermediary
It is connected.For the ordinary skill in the art, it can understand as the case may be above-mentioned term in the present invention
Concrete meaning.
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.
Referring to Fig. 1, the present embodiment is related to a kind of battery pack, including cabinet, multiple battery modules 2 and the first bonding structure
Part 4, cabinet include upper box lid 1 and lower box 3, and upper box lid 1 is located at the top of lower box 3, and upper box lid 1 and lower box 3 seal
Setting.Sealed set between upper box lid 1 and lower box 3 can enter inside battery pack to avoid outside moisture to cause short circuit.
Battery pack can be used for being directly mounted on vehicle, to provide power resources for vehicle.Wherein, multiple settings of battery module 2 exist
In cabinet, the first adhesive member 4 is set to the upper surface of battery module 2, and battery module 2 passes through the first adhesive member 4 and top box
Lid 1 is connected.
Wherein, the first adhesive member 4 can be liquid, paste or solid adhesive, such as double faced adhesive tape, glue etc..
Preferably, the first adhesive member 4 is structure glue, and structure glue is liquid or paste before curing, and structure glue is coated on battery mould
It between block 2 and upper box lid 1 and solidifies, to securely be attached battery module 2 and upper box lid 1.
Battery module 2 is connected by the first adhesive member 4 with upper box lid 1, thus battery module 2 and the formation of upper box lid 1
One entirety, strengthens the bonding strength between upper box lid 1 and battery module 2, therefore improves the whole rigid of battery module 2
Degree prevents battery pack from kindling, explosion occurring in vibration test.
As shown in Fig. 2, view at this time is that (arrow z direction) observes upper box lid 1 from lower to upper along the vertical direction, on
The inner surface of case lid 1 is provided with multiple protrusions 11, and multiple protrusions 11 respectively correspond multiple first adhesive members 4 and are arranged, so that convex
Portion 11 is connect with the first adhesive member 4.
As shown in Figure 3 and 4, the battery module 2 in the present embodiment includes battery cell arrangement architecture 20, battery cell
Arrangement architecture 20 includes multiple battery cells 21 and electricity of (for example, length direction of arrow x meaning) arrangement in the horizontal direction
Connect multiple busbar connectors 26 of multiple battery cells 21.
Optionally, battery module 2 includes at least two battery cell arrangement architectures 20, at least two battery cells arrangement knot
Structure 20 stacks along the vertical direction (arrow z direction).When there are two above battery cell arrangement architectures 20 for battery module 2
When, it can will be fixed between two adjacent battery cell arrangement architectures 20 by structure glue, and be located at the battery of top layer
Monomer arrangement architecture 20 is fixed by structure glue and upper box lid 1.In other embodiments, the quantity of battery cell arrangement architecture 20
It can also be one.
Optionally, as shown in Figure 4 and Figure 5, battery module 2 further includes band 22, and band 22 surrounds battery cell arrangement knot
The periphery of structure 20, band 22 include two long sides 221 and two short sides 222, the first surface of long side 221 and battery cell 21
2121 face each other and in the horizontal direction (arrow x direction) extend, the second surface 2122 of short side 222 and battery cell 21
It faces each other and (arrow z direction) extends along the vertical direction.In other embodiments, battery module 2 can by press strip,
The modes such as side plate or bolt are fixed.
Preferably, in the present embodiment, the periphery of battery cell arrangement architecture 20 can be surrounded by band 22 to realize
Battery cell arrangement architecture 20 is fixed, compared to other modes more lightweight.
Optionally, battery module 2 is provided at least two bands 22, such as two or three.Edge between two bands 22
Width direction (arrow y direction) is spaced apart.In other embodiments, the quantity of band 22 can be one.
Optionally, as shown in figure 4, in the present embodiment, battery cell arrangement architecture 20 further includes insulating part 25, insulating part 25
Including the first face and the second face, the first face is located at the side of battery cell arrangement architecture 20, and the second face is located at battery cell row
The bottom surface of array structure 20, the two sides of the bottom of battery cell arrangement architecture 20 are respectively arranged with an insulating part 25.Band 22 surrounds
The periphery of end plate 24, battery cell 21 and insulating part 25, insulating part 25 not only plays the role of insulating protection, but also can prevent electricity
Pond monomer 21 is tied tight by 22 part of band and unbalance stress occurs.
Optionally, as shown in figure 4, the battery module 2 in the present embodiment further includes two end plates 24, two end plates 24 are distinguished
The both ends of (the arrow x direction) along its length of battery cell arrangement architecture 20 are set to, band 22 surrounds battery cell
The periphery of arrangement architecture 20 and two end plates 24.
As shown in figure 5, battery cell 21 include electrode assembly 211, battery case 212, electrode terminal connector 213, with
And cover board 214.Battery case 212 can have hexahedral shape or other shapes.Battery case 212 has accommodate electrod component
211 and electrolyte inner space, and battery case 212 have opening.Electrode assembly 211 is contained in battery case 212,
The covering opening of cover board 214, and for electrode assembly 211 to be enclosed in battery case 212, electrode assembly 211 and electrode terminal
It is electrically connected between 215 by electrode terminal connector 213.In the present embodiment, there are two electrode terminal connectors 213, that is, distinguishes
For positive terminal sub- connecting member 213 and negative terminal connector 213.Battery case 212 can be by such as aluminium, aluminium alloy or plastics etc.
Material manufacture.
Electrode assembly 211 is contained in battery case 212, and electrode assembly 211 includes the first pole piece 2111, the second pole piece
2112 and the diaphragm 2113 that is set between first pole piece 2111 and second pole piece 2112.First pole piece 2111 can
To be positive plate or negative electrode tab, the polarity of the second pole piece 2112 and the first pole piece 2111 is on the contrary, correspondingly, the second pole piece 2112 is
Negative electrode tab or positive plate.Wherein, diaphragm 2113 is the insulator between the first pole piece 2111 and the second pole piece 2112.Electrode
Component 211 can be takeup type structure (such as Fig. 6), be also possible to laminated structure (such as Fig. 7).
It is illustratively positive plate with the first pole piece 2111, the second pole piece 2112 is illustrated for negative electrode tab.Similarly, exist
In other embodiments, the first pole piece 2111 can also be negative electrode tab, and the second pole piece 2112 is positive plate.In addition, anode is living
Property substance is applied on the coating area of positive plate, and negative electrode active material is applied on the coating area of negative electrode tab.From coating
The uncoated area that area extends then is used as tab, and electrode assembly 211 includes two tabs, i.e. anode ear and negative electrode lug, anode ear
Extend from the coating area of positive plate；Negative electrode lug extends from the coating area of negative electrode tab.Lead between anode ear and positive electrode terminal
The electrical connection of positive terminal connector is crossed, is electrically connected between negative electrode lug and negative electrode terminal by negative terminal connector.
The substantially hexahedron structure of battery case 212, battery case 212 include two first surfaces 2121 and two second
Surface 2122, the area of first surface 2121 are greater than the area of second surface 2122.In battery cell arrangement architecture 20, each
Two second surfaces 2122 of battery cell 21 face each other in the horizontal direction (such as length direction of arrow x direction),
Two first surfaces 2121 of each battery cell 21 face each other along the vertical direction (arrow z direction).
Optionally, first surface 2121 of the battery cell 21 towards upper box lid 1 is contacted with the first adhesive member 4, battery list
Body 21 is connected by the first adhesive member 4 with upper box lid 1.
As shown in fig. 6, electrode assembly 211 is flat, and electrode group when electrode assembly 211 is takeup type structure
The outer surface of part 211 includes two flat horizontal surfaces 2114, two flat horizontal surfaces 2114 (arrow z direction) mutual face along the vertical direction
Right, i.e., flat horizontal surface 2114 is faced each other with first surface 2121.The substantially hexahedron structure of electrode assembly 211, flat horizontal surface 2114
It is roughly parallel to winding axis and is the maximum outer surface of area.Flat horizontal surface 2114 can be opposed flattened surface, and should not
Seeking Truth pure-surface.
As shown in fig. 7, when electrode assembly 211 is laminated structure, the first pole piece 2111, diaphragm 2113 and the second pole piece
2112 are vertically stacked, i.e., the surface of the first pole piece 2111 is faced each other with first surface 2121.
Thickness direction of the electrode assembly 211 in charge and discharge process inevitably along the first pole piece 2111 expands
It is (maximum along the direction expansive force perpendicular to flat horizontal surface 2114 in the electrode assembly 211 of takeup type structure；In laminated structure
Electrode assembly 211 in, it is maximum along the stacking direction expansive force of the first pole piece 2111 and the second pole piece 2112).
In the present embodiment, (arrow z is signified towards vertical direction for the flat horizontal surface 2114 of the electrode assembly 211 of takeup type structure
Direction).Alternatively, the first pole piece 2111 and the second pole piece 2112 of the electrode assembly 211 of laminated structure (arrow along the vertical direction
Z direction) stacking.As it can be seen that electrode assembly 211 either still uses laminated structure, electrode group using takeup type structure
Part 211 applies the direction of maximum swelling power both facing to vertical direction to battery case 212.
And in the prior art, in the battery cell 21 of battery module 2, electrode assembly 211 applies maximum to battery case 212
The direction of expansive force is all directed towards horizontal direction, the ruler due to the size in the horizontal direction of battery module 2 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 21 heap in the horizontal direction
Folded, expansive force accumulation is big), therefore, the expansive force that existing battery module 2 is subject in the horizontal direction is very big, it is therefore desirable to
Very thick end plate 24 is arranged to resist expansive force in the horizontal direction two sides of battery module 2, and the thickening of end plate 24 can reduce battery
The energy density of module 2.And in the present embodiment, the direction that electrode assembly 211 applies maximum swelling power to battery case 212 is court
To vertical direction, and 21 numbers of the battery cell stacked on vertical direction are less, therefore compared with the prior art, can subtract significantly
The maximum swelling power of few battery module 2.
In addition, since battery cell 21 can also generate gas inside battery case 212 in charge and discharge process, generation
Gas can apply active force to battery case 212, expand outward to aggravate battery case 212.Due to the first table of the application
The area in face 2121 is greater than the area of second surface 2122, and two first surfaces 2121 in battery cell 21 are along vertical side
The maximum force direction applied to the gas for facing each other, therefore generating to battery case 212 is also directed towards vertical direction.Phase
Than in the prior art, this embodiment scheme further reduces the maximum swelling power of battery module 2.
In the present embodiment, since the first adhesive member 4 is set between battery module 2 and upper box lid 1, and battery mould
The maximum swelling power direction of block 2 is directed towards vertical direction, therefore can to paste between battery module 2 and the first adhesive member 4
That closes is closer, prevents the first adhesive member 4 from falling off.
As shown in FIG. 8 and 9, in the present embodiment, between the two neighboring long side 221 above first surface 2121
The first groove 23 is formed, the first adhesive member 4 is set in the first groove 23 and (arrow x direction) prolongs along its length
It stretches.Not solidified first adhesive member 4 is coated in the upper surface of battery module 2, and using positioned at 2121 top of first surface
Two neighboring long side 221 not solidified first adhesive member 4 is limited.Preferably, in the present embodiment, the first bonding structure
Part 4 is set in the first groove 23 and (arrow x direction) extends in the horizontal direction.
Optionally, the inner surface of upper box lid 1 is provided with protrusion 11, and protrusion 11 is oppositely arranged with the first groove 23, and first is viscous
Closing component 4 to be is liquid or glue paste before solidifying, and protrusion 11 and the first adhesive member 4 bond.At this point, passing through upper box lid 1
Inner surface is provided with protrusion 11, on the one hand can increase the rigidity of upper box lid 1, resists the upward expansive force of battery module 2.It is another
Aspect reduces the dosage of the first adhesive member 4, and it is that liquid or glue paste (do not need that the first adhesive member 4, which is before solidifying, at this time
Entire 2 upper surface of battery module all gluings).
Optionally, protrusion 11 is protruded into the first groove 23, and the thickness of the first adhesive member 4 is less than the thickness of long side 221.By
It is less than the thickness of long side 221 in the thickness of the first adhesive member 4, more spaces can be provided to protrusion 11, to increase protrusion
11 thickness further increases the rigidity of upper box lid 1.Meanwhile the dosage of glue can be further reduced (by the thickness for reducing gluing
Degree), and prevent glue from overflowing.
Optionally, each battery module 2 is provided with two bands 22, and upper box lid 1 is provided with multiple protrusions 11, and multiple
Protrusion 11 corresponds respectively to the first groove 23 of each battery module 2, and the first adhesive member 4 is arranged in the first groove 23.
Therefore, as shown in Figure 1, the inner surface of upper box lid 1 is provided with multiple protrusions 11, and multiple protrusions 11 respectively correspond multiple first
Adhesive member 4 is arranged, and further strengthens the connection between battery module 2 and upper box lid 1.
Optionally, battery pack further includes the second adhesive member 5 for being set to the lower surface of battery module 2, battery module 2
Lower surface is connected by the second adhesive member 5 with lower box 3.In this way, by the first adhesive member 4 and the second adhesive member 5,
So that upper box lid 1, battery module 2, lower box 3, form an entirety, upper box lid 1, battery module 2 are prevented, between lower box 3
Relative Vibration.Preferably, the second adhesive member 5 is structure glue.
Optionally, formed between the two neighboring long side 221 of the lower section of first surface 2,121 second groove (do not mark,
It is Chong Die with the second adhesive member 5 in Fig. 9), the second adhesive member 5 is set in the second groove and (arrow x is signified in the horizontal direction
Direction) extend.So, it is possible to reduce the usage amount of the second adhesive member 5 mitigates weight, reduces cost.
As shown in Figure 10, in the present embodiment, the top surface of end plate 24 is provided with protrusion 241, and protrusion 241 protrudes from battery module
2 upper surface and between two neighboring long side 221.In this way, being set to the edge of battery cell arrangement architecture 20 by two
Two end plates 24 at the both ends of length direction are formed between two protrusions 241 and two neighboring long side 221 on two end plates 24
First groove 23, the first adhesive member 4 are arranged in the first groove 23, and protrusion 241 can be to not solidified first adhesive member 4
(for example, the first adhesive member 4 at this time is in liquid) is limited, and not solidified first adhesive member is prevented to be lost.
In the present embodiment, the band limiting slot 242 for being limited to band 22, band limit are additionally provided on end plate 24
Position slot 242 extends along the vertical direction.
In assembling process, the second surface 2122 of multiple battery cells 21 can be bonded to each other, in the horizontal direction (example
Such as, the length direction of arrow x meaning) it is stacked, form battery cell arrangement architecture 20；Two battery cell arrangement architectures 20
(arrow z direction) is stacked along the vertical direction, and two end plates 24 are arranged in the two of two battery cell arrangement architectures 20
End, two bands 22 surround the periphery of battery cell arrangement architecture 20 and two end plates 24, form battery module 2；Multiple batteries
Module 2 is stacked in the width direction (arrow y direction).The first adhesive member 4 is provided between two bands 22, on
The inner surface of case lid 1 is provided with protrusion 11, and protrusion 11 and the first adhesive member 4 bond；Battery module 2 passes through the first adhesive member
4 are connected with upper box lid 1, so that battery module 2 and the upper box lid 1 of battery pack form an entirety, to prevent battery pack from existing
Kindling, explosion occur in vibration test.
It should be noted that being not intended to limit although the various embodiments described above have been described herein
The scope of patent protection of the utility model.Therefore, based on the innovative idea of the utility model, embodiment described herein is carried out
Change and modification or equivalent structure or equivalent flow shift made based on the specification and figures of the utility model, directly
Or above technical scheme is used in other related technical areas indirectly, it is included in the protection model of the utility model patent
Within enclosing.
Claims (13)
1. a kind of battery pack, comprising:
Cabinet, the cabinet include upper box lid and lower box, the upper box lid be located at the top of the lower box and with it is described
Lower box sealed set；
It is arranged in the intracorporal multiple battery modules of the case；And
First adhesive member, is set to the upper surface of the battery module, and the battery module passes through first adhesive member
It is connected with the upper box lid.
2. battery pack according to claim 1, it is characterised in that: the battery module includes battery cell arrangement architecture,
The battery cell arrangement architecture includes the multiple battery cells arranged in the horizontal direction and the multiple battery list of electrical connection
Multiple busbar connectors of body；
The battery cell includes electrode assembly and battery case, and the electrode assembly is contained in the battery case, described
Electrode assembly includes the first pole piece, the second pole piece and the diaphragm being set between first pole piece and second pole piece；
The electrode assembly be takeup type structure and be it is flat, the outer surface of the electrode assembly includes two flat horizontal surfaces, two
A flat horizontal surface faces each other along the vertical direction；Or, the electrode assembly is laminated structure, it is first pole piece, described
Diaphragm and second pole piece are vertically stacked；
The battery case includes two first surfaces and two second surfaces, and the area of the first surface is greater than described second
The area on surface；Described two second surfaces in each of the battery cell arrangement architecture battery cell are along the water
Square to facing each other, described two first surfaces in each of described battery cell arrangement architecture battery cell are along institute
Vertical direction is stated to face each other.
3. battery pack according to claim 2, it is characterised in that: the battery cell towards the upper box lid described
One surface is contacted with first adhesive member, and the battery cell is connected by first adhesive member with the upper box lid
It connects.
4. battery pack according to claim 2, it is characterised in that: the battery module includes at least two battery lists
Body arrangement architecture, at least two battery cell arrangement architectures are stacked along the vertical direction.
5. according to the described in any item battery packs of claim 2-4, it is characterised in that: the battery module further includes band, institute
The periphery that band surrounds the battery cell arrangement architecture is stated, the band includes two long sides and two short sides, the long side
It faces each other with the first surface and extends along the horizontal direction, the short side is faced each other with the second surface and edge
The vertical direction extends.
6. battery pack according to claim 5, it is characterised in that: the battery module is provided at least two bundles
Band, at least two bands are spaced apart.
7. battery pack according to claim 6, it is characterised in that: two neighboring described above the first surface
The first groove is formed between long side, first adhesive member is set in first groove and prolongs along the horizontal direction
It stretches.
8. battery pack according to claim 7, it is characterised in that: the inner surface of the upper box lid is provided with protrusion, described
Protrusion is oppositely arranged with first groove, and the protrusion and first adhesive member bond.
9. battery pack according to claim 8, it is characterised in that: the protrusion is protruded into first groove, and described
The thickness of one adhesive member is less than the thickness of the long side.
10. battery pack according to claim 6, it is characterised in that: the battery pack further includes being set to the battery mould
The lower surface of second adhesive member of the lower surface of block, the battery module passes through second adhesive member and the lower box
It is connected.
11. battery pack according to claim 10, it is characterised in that: the two neighboring institute below the first surface
It states and forms the second groove between long side, second adhesive member is set in second groove and prolongs along the horizontal direction
It stretches.
12. battery pack according to claim 7, it is characterised in that: the battery module further includes two end plates, is set respectively
The both ends along the horizontal direction of the battery cell arrangement architecture are placed in, the band surrounds the battery cell arrangement knot
The periphery of structure and described two end plates, the top surface of the end plate are provided with protrusion, and the protrusion protrudes from the battery module
Upper surface and between the two neighboring long side.
13. battery pack according to claim 8, it is characterised in that: each battery module is provided with two bundles
Band, the upper box lid is provided with multiple protrusions, and multiple protrusions correspond respectively to the described of each battery module
First groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822275435.3U CN209249528U (en) | 2018-12-30 | 2018-12-30 | A kind of battery pack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822275435.3U CN209249528U (en) | 2018-12-30 | 2018-12-30 | A kind of battery pack |
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| Publication Number | Publication Date |
|---|---|
| CN209249528U true CN209249528U (en) | 2019-08-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201822275435.3U Active CN209249528U (en) | 2018-12-30 | 2018-12-30 | A kind of battery pack |
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| CN (1) | CN209249528U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111384334A (en) * | 2018-12-30 | 2020-07-07 | 宁德时代新能源科技股份有限公司 | Battery pack |
| CN114388961A (en) * | 2022-01-07 | 2022-04-22 | 武汉亿纬星笙能源有限公司 | Battery module and battery |
| WO2023044634A1 (en) * | 2021-09-23 | 2023-03-30 | 宁德时代新能源科技股份有限公司 | Battery, electric device, and method and device for preparing battery |
-
2018
- 2018-12-30 CN CN201822275435.3U patent/CN209249528U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111384334A (en) * | 2018-12-30 | 2020-07-07 | 宁德时代新能源科技股份有限公司 | Battery pack |
| WO2020140745A1 (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 device |
| US11289762B2 (en) | 2018-12-30 | 2022-03-29 | Contemporary Amperex Technology Co., Limited | Battery pack |
| WO2023044634A1 (en) * | 2021-09-23 | 2023-03-30 | 宁德时代新能源科技股份有限公司 | Battery, electric device, and method and device for preparing battery |
| CN114388961A (en) * | 2022-01-07 | 2022-04-22 | 武汉亿纬星笙能源有限公司 | Battery module and battery |
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