CN109560218A - Lower case and battery pack for battery pack - Google Patents
Lower case and battery pack for battery pack Download PDFInfo
- Publication number
- CN109560218A CN109560218A CN201710979078.6A CN201710979078A CN109560218A CN 109560218 A CN109560218 A CN 109560218A CN 201710979078 A CN201710979078 A CN 201710979078A CN 109560218 A CN109560218 A CN 109560218A
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- Prior art keywords
- wall
- battery pack
- side wall
- lower case
- stiffening plate
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- 230000005540 biological transmission Effects 0.000 claims description 48
- 230000003447 ipsilateral effect Effects 0.000 claims description 3
- 230000003014 reinforcing effect Effects 0.000 description 12
- 238000012423 maintenance Methods 0.000 description 8
- 238000010276 construction Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 5
- 230000005611 electricity Effects 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000009434 installation Methods 0.000 description 3
- 210000003205 muscle Anatomy 0.000 description 3
- 229910000838 Al alloy Inorganic materials 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 238000009966 trimming Methods 0.000 description 2
- 206010014357 Electric shock Diseases 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000000739 chaotic effect Effects 0.000 description 1
- 238000002788 crimping Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 238000003466 welding Methods 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
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2220/00—Batteries for particular applications
- H01M2220/20—Batteries in motive systems, e.g. vehicle, ship, plane
-
- 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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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Battery Mounting, Suspending (AREA)
Abstract
The present invention provides a kind of lower cases and battery pack for battery pack, it include: wherein lower case ontology for the lower case of battery pack, the edge of the lower case ontology has mounting flange, the lower case ontology includes: bottom wall and periphery wall, the periphery wall includes: antetheca, rear wall and a pair of sidewalls being connected between the antetheca and the rear wall, the side wall includes: side wall leading portion and side wall back segment, the side wall back segment is connected obliquely between the side wall leading portion and the rear wall, and the distance between a pair of described side wall back segment trend that tapers off from front to back, so that the lower case ontology is configured with the rectangle of two unfilled corners.The lower case of the battery pack can not only reinforce the intensity of battery pack, but also also help the reasonable Arrangement of each component inside battery pack.
Description
Technical field
The invention belongs to technical field of vehicle manufacture, in particular to a kind of lower case and battery for battery pack
Packet.
Background technique
The lower case intensity of the battery pack of traditional electric car is insufficient, when being hit, can be deformed, or even rupture
Damage, and each component layout in conventional batteries packet is more chaotic, keeps the volume of battery pack excessive, there are rooms for improvement.
Summary of the invention
In view of this, the present invention is directed to propose a kind of lower case for battery pack, the lower case of the battery pack not only may be used
Reinforce the intensity of battery pack, and also helps the reasonable Arrangement of each component inside battery pack.
In order to achieve the above objectives, the technical scheme of the present invention is realized as follows:
A kind of lower case for battery pack, comprising: the edge of lower case ontology, the lower case ontology has peace
Fill flange, the lower case ontology includes: bottom wall and periphery wall, the periphery wall include: antetheca, rear wall and be connected to it is described before
A pair of sidewalls between wall and the rear wall, the side wall include: side wall leading portion and side wall back segment, and the side wall back segment is obliquely
It is connected between the side wall leading portion and the rear wall, and the distance between a pair of described side wall back segment tapers off from front to back
Gesture, so that the lower case ontology is configured with the rectangle of two unfilled corners.
Further, one of them described side wall back segment is configured to forceful electric power pinboard mounting portion, after another described side wall
Section is configured to light current pinboard mounting portion.
Further, side wall back segment avoid holes are provided on one of side wall back segment, and the lower case includes: strong
Electric side stiffening plate, forceful electric power side stiffening plate are fixed on the inner wall of one of side wall back segment, and the forceful electric power side adds
Strong plate has stiffening plate avoid holes, and the stiffening plate avoid holes are corresponding with side wall back segment evacuation hole site.
Further, forceful electric power side stiffening plate has forceful electric power side stiffening plate upper overturning, the forceful electric power side stiffening plate upper overturning
On be provided with forceful electric power side stiffening plate positioning column.
Further, the lower case for battery pack further include: weak-feedback side of transmission line stiffening plate, the weak-feedback side of transmission line stiffening plate packet
It includes: a part for being fixed on the inner wall of another side wall back segment and being fixed on the inner wall of the rear wall
Another part, the weak-feedback side of transmission line stiffening plate have weak-feedback side of transmission line stiffening plate upper overturning, are arranged on the weak-feedback side of transmission line stiffening plate upper overturning
There are two groups of weak-feedback side of transmission line positioning columns, wherein one group of weak-feedback side of transmission line positioning column is corresponding with another described side wall back segment, another set is weak
Electric side positioning column is corresponding with the rear wall.
Further, the lower case for battery pack further include: fixed bracket, the fixed bracket are laterally extended and prop up
Support positions on the weak-feedback side of transmission line stiffening plate upper overturning and the forceful electric power side stiffening plate upper overturning and by forceful electric power side stiffening plate
Column, the positioning of weak-feedback side of transmission line positioning column described in two groups.
Further, support frame is provided on the inner wall of each leading portion side wall, support frame as described above has supporting surface, institute
It states and is provided with supporting surface positioning column on supporting surface.
Further, support frame as described above is " u "-shaped of the opening towards the ipsilateral leading portion side wall, and the opening of support frame as described above
End is provided with the open end flange extended towards direction away from each other, and the open end flange is fixed with the leading portion side wall,
The upper wall and lower wall of support frame as described above are arranged in parallel, and between being connected to and being provided on the perpendicular wall between the upper wall and the lower wall
The Lightened structure separated, the upper surface of the upper wall are configured to the supporting surface.
Further, support frame as described above is spaced apart with the bottom wall, and the front end of support frame as described above extends to the side wall leading portion
At the connecting corner of the antetheca, the rear end of support frame as described above extends to the connection of the side wall leading portion Yu the side wall back segment
Place.
Further, the lower case for battery pack further include: be fixed on the bottom wall and be sequentially connected front lower
Support plate, lower-left support plate, rami posterior inferior fagging and bottom right support plate are provided with support plate positioning column in each support plate, described
Lower-left support plate is located at below the support frame as described above in left side, and the bottom right support plate is located at below the support frame as described above on right side.
Further, the lower-left support plate has the lower-left support plate upper overturning fixed with the corresponding leading portion side wall,
The bottom right support plate has the bottom right support plate upper overturning fixed with the corresponding leading portion side wall, the preceding lower supporting plate tool
There is the preceding lower supporting plate upper overturning fixed with the antetheca, the rami posterior inferior fagging has and two side wall back segments and institute
State the fixed rami posterior inferior fagging flange of rear wall.
Compared with the existing technology, the lower case of the present invention for battery pack has the advantage that
(1) lower case of the lower case of the present invention for battery pack, the battery pack makees trimming at side wall back segment
Construction, keep the arrangement of functional module such as BDU and Manual maintenance switch more compact so that lower case overall dimensions it is more compact,
Rationally, volume shared by lower case is reduced, the reasonable Arrangement of each component inside battery pack is conducive to, while also improving battery
The energy density of packet, and strengthen by the setting constructions such as reinforcing rib the intensity of battery pack.
Another object of the present invention is to propose a kind of battery pack, including the above-mentioned lower case for battery pack, the electricity
Each component layout inside the packet of pond is reasonable, while intensity is larger.
Detailed description of the invention
The attached drawing for constituting a part of the invention is used to provide further understanding of the present invention, schematic reality of the invention
It applies example and its explanation is used to explain the present invention, do not constitute improper limitations of the present invention.In the accompanying drawings:
Fig. 1 is the structural schematic diagram of the lower case of battery pack according to an embodiment of the present invention；
Fig. 2 is the structural schematic diagram of the lower case of battery pack according to an embodiment of the present invention；
Fig. 3 is the rear perspective of the lower case of battery pack according to an embodiment of the present invention.
Description of symbols:
100- lower case, 1- lower case ontology, 11- mounting flange, 12- bottom wall, 131- antetheca, 132- rear wall, the side 133-
Wall, 1331- side wall leading portion, 1332- side wall back segment, 13321- forceful electric power pinboard mounting portion, 13322- light current pinboard mounting portion,
13323- side wall back segment avoid holes, 2- forceful electric power side stiffening plate, 21- stiffening plate avoid holes, 22- forceful electric power side stiffening plate upper overturning,
221- forceful electric power side stiffening plate positioning column, 3- weak-feedback side of transmission line stiffening plate, 31- weak-feedback side of transmission line stiffening plate upper overturning, 311- weak-feedback side of transmission line positioning column,
4- fixation bracket, 5- support frame, 51- supporting surface, 511- supporting surface positioning column, the open end 52- flange, 53- upper wall, 55- erect wall,
551- Lightened structure, lower supporting plate before 6-, the lower-left 7- support plate, 8- rami posterior inferior fagging, the bottom right 9- support plate, 101- support plate are fixed
Position column, the lower-left 71- support plate upper overturning, the bottom right 91- support plate upper overturning, lower supporting plate upper overturning before 61-, 111- battery pack peace
Fill hole, 1333- sidewall reinforcing muscle, 121- bottom wall concave bar, 41- first flange side, 42- second flange side, 43- third flange.
Specific embodiment
It should be noted that in the absence of conflict, the feature in embodiment and embodiment in the present invention can phase
Mutually combination.
The lower case 100 according to an embodiment of the present invention for battery pack is described below with reference to Fig. 1-Fig. 3.
Lower case 100 according to an embodiment of the present invention for battery pack may include: lower case ontology 1.
As shown in Figure 1-Figure 3, the edge of lower case ontology 1 has mounting flange 11, has on mounting flange 11 more
A battery pack mounting hole 111, multiple battery pack mounting holes 111 are arranged on mounting flange 11 at equal intervals, and connection bolt passes through
The upper housing of lower case 100 and battery pack is attached fixation by battery pack mounting hole 111.
Specifically, mounting flange 11 is integrally formed on lower case ontology 1, not only makes more compact structure as a result, but also under
1 intensity of enclosure body is increased, while conveniently being installed with upper housing.
Preferably, battery pack mounting hole 111 can be integrally formed on mounting flange 11 by stamping process, as a result,
The processing is simple, can reduce procedure of processing.
Referring to Figures 1 and 2, lower case ontology 1 includes: bottom wall 12 and periphery wall (as included antetheca 131, rear wall 132 and one
To side wall 133).Specifically, the battery pack of traditional electric car or mixed motor-car is typically located at floor bottoms or back in-support carriage
Interior, schematically illustrate by taking the battery pack being arranged in back in-support carriage as an example below, bottom wall 12 is suitable for being fixed on back in-support carriage floor, by
Battery pack, can be firmly fixed in back in-support carriage to be powered to vehicle by this.Periphery wall and bottom wall 12 are integrally formed one
It rises, is process by way of injection molding and punching press, the globality of lower case ontology 1 can be made more preferable as a result, more compact structure,
External shock is resisted with bigger intensity.
Specifically, it is provided with bottom wall concave bar 121 on bottom wall 12, increases the strong of bottom wall 12 by the way that bottom wall concave bar 121 is arranged
Degree, makes bottom wall 12 be able to bear bigger extruding force, since the battery modules in battery pack are arranged on bottom wall 12, increase
Add the intensity of bottom wall 12 be conducive to protect battery modules, avoid bottom wall 12 be squeezed power it is excessive when battery modules damage, cause
Make the power supply for influencing vehicle.
Further, periphery wall includes: antetheca 131, rear wall 132 and the opposite side being connected between antetheca 131 and rear wall 132
Wall 133.Specifically, it is provided with antetheca reinforcing rib (not shown) on antetheca 131, is provided with rear wall reinforcing rib on rear wall 132
(not shown) is provided with sidewall reinforcing muscle 1333 on side wall 133, can increase the intensity of periphery wall as a result, enable periphery wall
It is enough to bear bigger impact force, avoid periphery wall extrusion or fracture as caused by the impact force being subject to is excessive from showing
As.
Preferably, antetheca reinforcing rib, rear wall reinforcing rib and sidewall reinforcing muscle 1333 can through the stamping process it is integrally formed
On periphery wall, the processing is simple as a result,.
Further, side wall 133 includes: side wall leading portion 1331 and side wall back segment 1332, and side wall back segment 1332 obliquely connects
It connects between side wall leading portion 1331 and rear wall 132, and the distance between a pair of sidewalls back segment 1332 trend that tapers off from front to back,
So that lower case ontology 1 is configured with the rectangle of two unfilled corners.
In other words, the distance between two sidewalls leading portion 1331 is greater than the distance between two sidewalls back segment 1332, thus, it is possible to
Find out that the transverse width of antetheca 131 is greater than the transverse width of rear wall 132.Lower case ontology 1 is configured with two unfilled corners
Rectangle not only reduces the volume of battery pack, and on lower case ontology 1 more two can be used to set battery pack
The mounting surface (i.e. the section formed at two unfilled corners) set.
Specifically, what is arranged between two sidewalls leading portion 1331 is battery modules, and arranged between two sidewalls back segment 1332
It is the BDU (not shown) and Manual maintenance switch (not shown) that control action is played to battery pack output electricity, due to
Battery modules are being added length more in battery pack transverse direction with Manual maintenance switch in the length ratio BDU in battery pack transverse direction
Greatly, therefore, the distance between two sidewalls leading portion 1331 being set greater than the distance between two sidewalls back segment 1332 can effectively save
The space of battery pack is saved, the space for making battery pack account for back in-support carriage is smaller, is conducive to the space layout in back in-support carriage.
Lower case 100 according to an embodiment of the present invention for battery pack, the lower case 100 of the battery pack is in side wall back segment
Make trimming construction at 1332, keep the arrangement of functional module such as BDU and Manual maintenance switch more compact, so that lower case 100 is whole
Body size is more compact, reasonable, reduces volume shared by lower case 100, is conducive to the reasonable cloth of each component inside battery pack
It sets, while also improving the energy density of battery pack, and strengthen the intensity of battery pack by constructions such as setting reinforcing ribs.
In conjunction with Fig. 1-embodiment illustrated in fig. 3, one of side wall back segment 1332 is configured to forceful electric power pinboard mounting portion
13321, another side wall back segment 1332 is configured to light current pinboard mounting portion 13322.Specifically, a left side for lower case ontology 1
The side wall back segment 1332 of side, which is formed by section, is configured to forceful electric power pinboard mounting portion 13321, be used to forceful electric power pinboard into
Row is fixedly mounted, so that high-voltage wiring harness is attached by forceful electric power pinboard and battery pack internal part, is convenient for battery pack to whole
Vehicle provides forceful electric power.
The side wall back segment 1332 on the right side of lower case ontology 1, which is formed by section, is configured to light current pinboard mounting portion
13322, for installation is fixed with light current pinboard, so that low voltage wiring harness passes through light current pinboard and battery pack internal part
It is attached, provides weak electric signal to entire car controller convenient for battery pack.Forceful electric power, light current are organic in this way separates, and prevents forceful electric power
Electromagnetic pollution influence weak electric signal transmission, while be also prevented from forceful electric power, light current intersect the potential electric shock risk of bring.
Referring to Fig.1, side wall back segment avoid holes 13323 are provided on one of side wall back segment 1332.Specifically, after side wall
Section avoid holes 13323 are the through-hole being arranged on the side wall back segment 1332 in the left side of lower case ontology 1, and it acts as evacuation high pressures
Harness be attached high-voltage wiring harness can by side wall back segment avoid holes 13323 and the component (such as BDU) inside battery pack, make
Battery pack can be whole vehicle functions.
Preferably, side wall back segment avoid holes 13323 can be integrally formed on lower case ontology 1 by stamping process.
As shown in Fig. 2, lower case 100 further include: forceful electric power side stiffening plate 2, forceful electric power side stiffening plate 2 are fixed therein a side
On the inner wall of wall back segment 1332.Specifically, forceful electric power side stiffening plate 2 is fixed on the side wall back segment in the left side of lower case ontology 1
On 1332 inner wall, reinforce for the side wall back segment 1332 to left side, there is the side wall back segment 1332 in left side bigger
Intensity resists extraneous impact.
Preferably, on the inner wall of the solderable side wall back segment 1332 for being fixed on left side of forceful electric power side stiffening plate 2, as a result, may be used
Keep forceful electric power side stiffening plate 2 closer in conjunction with the inner wall of the side wall back segment 1332 in left side, saves the space in battery pack, and
And the installation of unnecessary part is also avoided, lower manufacturing cost.
Further, forceful electric power side stiffening plate 2 has stiffening plate avoid holes 21, stiffening plate avoid holes 21 and side wall back segment avoid holes
13323 positions are corresponding.Preferably, stiffening plate avoid holes 21 can be with side wall back segment avoid holes 13323 with type, as a result, can be convenient for height
Crimping beam passes through, and stiffening plate avoid holes 21 can be rushed with side wall back segment avoid holes 13323 by same stamping die
Pressure processing, does not have to independent mold developing, saves manufacturing cost, can also accelerate speed of production.
Embodiment referring to figs. 1 and 2, forceful electric power side stiffening plate 2 have forceful electric power side stiffening plate upper overturning 22, and forceful electric power side adds
Forceful electric power side stiffening plate positioning column 221 is provided on strong plate upper overturning 22.Specifically, forceful electric power side stiffening plate upper overturning 22 and forceful electric power side
Stiffening plate 2 is one of the forming part, and by being bent to form at the top of forceful electric power side stiffening plate 2, the processing is simple as a result, and can make
More compact structure.Forceful electric power side stiffening plate positioning column 221 stretches out setting by forceful electric power side stiffening plate 2 upwards.Further, forceful electric power side is reinforced
Plate positioning column 221 is welded on forceful electric power side stiffening plate upper overturning 22, can make forceful electric power side stiffening plate positioning column 221 and forceful electric power as a result,
Side stiffening plate 2 combines closer, and fixed effect is more preferable.
Here, it should be noted that in an embodiment of the present invention, " positioning column " can be common polished rod positioning column,
Play the role of the other brackets of positioning, part by wearing cooperation, or " positioning column " is also possible to stud, i.e., just has outer spiral shell
Line can also be realized and be screwed in this way on the basis of positioning action.It, can be in the other positioning columns being described below
Using two kinds of set-up modes described herein, following embodiment is no longer described in detail.
As shown in figures 1 and 3, lower case 100 further include: weak-feedback side of transmission line stiffening plate 3, weak-feedback side of transmission line stiffening plate 3 include: to be fixed on
A part on the inner wall of another side wall back segment 1332 and the another part being fixed on the inner wall of rear wall 132,
In other words, 3 a part of weak-feedback side of transmission line stiffening plate is fixed on the inner wall of the side wall back segment 1332 on the right side of lower case ontology 1, and
3 another part of weak-feedback side of transmission line stiffening plate is fixed on the inner wall of rear wall 132, and therefore, the weak-feedback side of transmission line for foring approximate L shape is reinforced
3 structure of plate can make the side wall back segment 1332 on right side obtain preferably reinforcing to resist extraneous shock as a result,.
Preferably, weak-feedback side of transmission line stiffening plate 3 can be fixed on the inner wall of the side wall back segment 1332 on right side by welding
On, it can make weak-feedback side of transmission line stiffening plate 3 closer in conjunction with the inner wall of the side wall back segment 1332 on right side as a result, reduce and occupy electricity
Space inside the packet of pond, but also can avoid the installation of unnecessary part.
Further, weak-feedback side of transmission line stiffening plate 3 has weak-feedback side of transmission line stiffening plate upper overturning 31.Specifically, weak-feedback side of transmission line stiffening plate turns over
Side 31 and weak-feedback side of transmission line stiffening plate 3 are one of the forming part, by being bent to form in the top of weak-feedback side of transmission line stiffening plate 3, as a result, processing letter
It is single, and more compact structure can be made.
Further, two groups of weak-feedback side of transmission line positioning columns 311 are provided on weak-feedback side of transmission line stiffening plate upper overturning 31, wherein one group of light current
Side positioning column 311 is corresponding with another side wall back segment 1332, and another set weak-feedback side of transmission line positioning column 311 is corresponding with rear wall 132.Two
Group weak-feedback side of transmission line positioning column 311 stretches out setting by weak-feedback side of transmission line stiffening plate 3 upwards.Specifically, weak-feedback side of transmission line positioning column 311 is welded on weak
On electric side stiffening plate upper overturning 31, weak-feedback side of transmission line positioning column 311 can as a result, combined with weak-feedback side of transmission line stiffening plate 3 closer, it is fixed
Effect is more preferable.
Referring to Fig. 3, the lower case 100 for battery pack further include: fixed bracket 4, fixed bracket 4 are laterally extended and support
On weak-feedback side of transmission line stiffening plate upper overturning 31 and forceful electric power side stiffening plate upper overturning 22 and by 221, two groups of forceful electric power side stiffening plate positioning column
Weak-feedback side of transmission line positioning column 311 positions.Fixed bracket 4 is used to support fixed BDU and Manual maintenance switch.Specifically, BDU is fixed on
The left side of fixed rack 4, Manual maintenance switch are fixed on the right side of fixed bracket 4.
Specifically, fixed bracket 4 has first flange in 41, second flange 42 and third flange 43, first flange
The location hole when having first flange on 41, second flange location hole when having second flange on 42, on third flange 43
With third flange location hole, first flange side 41 is suitable for being supported on forceful electric power side stiffening plate upper overturning 22, and by forceful electric power side
Stiffening plate positioning column 221 and first flange side location hole carry out being coupled positioning, and second flange side 42 is suitable for being supported on rear wall
On weak-feedback side of transmission line stiffening plate upper overturning 31 on 132, and by the light current side positioning of the weak-feedback side of transmission line stiffening plate upper overturning 31 on rear wall 132
Column 311 and second flange side location hole carry out being coupled positioning, and third flange 43 is suitable for being supported on the side wall back segment on right side
On weak-feedback side of transmission line stiffening plate upper overturning 31 on 1332, and by the weak-feedback side of transmission line stiffening plate upper overturning 31 on the side wall back segment 1332 on right side
Weak-feedback side of transmission line positioning column 311 and third flange location hole carry out being coupled positioning, as a result, can will fixation bracket 4 it is firm
Positioning is fixed in battery pack, can preferably support fixed BDU and Manual maintenance switch, and setting can make electricity in this way
The inner space of Chi Bao is reasonably arranged.
Specifically, first flange in 41, second flange 42 and third flange 43 by way of bending be integrally formed
On fixed bracket 4, the integral strength of fixed bracket 4 can be made bigger as a result, impact resistant capability is stronger, can be preferably to BDU
Support fixed function is played with Manual maintenance switch.
Preferably, the manufacture material that aluminum alloy materials are fixed bracket 4 can be selected, fix bracket 4 as a result, with bigger
Rigidity, energy structure are withstood more force, and extend the service life of fixed bracket 4, and 4 matter of bracket is fixed made of aluminum alloy materials
Gently, be conducive to the lightweight of battery pack, and then be conducive to vehicle lightweight.
Embodiment referring to figs. 1 and 2 is provided with support frame 5, support frame 5 on the inner wall of each leading portion side wall 133
Play the role of support reinforcing to leading portion side wall 133, two leading portion side walls 133 of lower case 100 can resist stronger impact force from
And protect battery modules.
Further, two groups of support frames 5 and the left and right side of battery modules are mutually only supported, and support frame 5 has supporting surface 51, support
Supporting surface positioning column 511 is provided on face 51.Supporting surface 51 is the upward face (i.e. upper surface) of support frame 5, is welded and fixed thereon
Supporting surface positioning column 511.Supporting surface positioning column 511 is used to position the module bracket of sandwiched between fixed battery modules (in figure
It is not shown), two groups of support frames 5 not only only support fixed battery modules in the lateral direction as a result, also indirectly pass through module bracket
Battery modules are fixed on the positioning in the up-down direction, therefore, battery modules can be made to be firmly fixed in battery pack.
Referring to Figures 1 and 2, support frame 5 is " u "-shaped (i.e. outward opening) of the opening towards ipsilateral leading portion side wall 133, and is propped up
The open end of support 5 is provided with the open end flange 52 extended towards direction away from each other, open end flange 52 and leading portion side
Wall 133 is fixed.Specifically, there are two open end flange 52 for the tool of support frame 5, and one is located at the upper end of opening and upwardly extends, separately
One is located at the lower end of opening and extends downwardly, and two open end flange 52 are welded and fixed with leading portion side wall 133, by
This, can make that support frame 5 combined with leading portion side wall 133 closer simultaneously forms box cavity structure, keeps overall structure more compact, together
Shi Zengjia is crushed deformation space, and need not be punched on leading portion side wall 133 so that support frame 5 and leading portion using mode is welded and fixed
Side wall 133 is bolted, and the leakproofness of lower case 100 is influenced.
Further, the upper wall 53 of support frame 5 and lower wall are arranged in parallel, and are connected to the perpendicular wall 55 between upper wall 53 and lower wall
On be provided with Lightened structure 551 spaced apart, the upper surface of upper wall 53 is configured to supporting surface 51.Specifically, Lightened structure 551 is
Deep gouge hollow out ellipse lightening hole on perpendicular wall 55 is set, the weight of support frame 5 can be reduced as a result, be conducive to vehicle lightweight,
And lightening hole also has the function of part energy-absorbing, the impact force that absorbable battery pack is subject to.
Further, support frame 5 is spaced apart with bottom wall 12, and the front end of support frame 5 extends to side wall leading portion 1331 and antetheca
At 131 connecting corner, the rear end of support frame 5 extends to the junction of side wall leading portion 1331 Yu side wall back segment 1332.In other words,
The longitudinal length of support frame 5 almost covers entire side wall leading portion 1331, makes reinforcing effect more preferable as a result, makes side wall leading portion
1331 can resist stronger impact force.
As depicted in figs. 1 and 2, for the lower case of battery pack 100 further include: be fixed on bottom wall 12 and be sequentially connected
Preceding lower supporting plate 6, lower-left support plate 7, rami posterior inferior fagging 8 and bottom right support plate 9.Specifically, preceding lower supporting plate 6 is fixed on antetheca
On bottom wall 12 near 131, lower-left support plate 7 is fixed on the bottom wall 12 near the side wall leading portion 1331 in left side, rami posterior inferior support
Plate 8 is fixed on the bottom wall 12 near rear wall 132, and bottom right support plate 9 is fixed on the bottom wall near the side wall leading portion 1331 on right side
On 12.
Preferably, preceding lower supporting plate 6, lower-left support plate 7, rami posterior inferior fagging 8 and bottom right support plate 9 can be by being welded and fixed
Mode and bottom wall 12 be attached fixation, make more compact structure as a result, save the space in battery pack.
Further, support plate positioning column 101 is provided in each support plate, lower-left support plate 7 is located at the support frame 5 in left side
Lower section, bottom right support plate 9 are located at 5 lower section of support frame on right side.
Further, lower-left support plate 7 has the lower-left support plate upper overturning 71 fixed with corresponding leading portion side wall 133,
Bottom right support plate 9 has a bottom right support plate upper overturning 91 fixed with corresponding leading portion side wall 133, preceding lower supporting plate 6 have with
The fixed preceding lower supporting plate upper overturning 61 of antetheca 131, rami posterior inferior fagging 8 have and two side walls back segment 1332 and rear wall 132
Fixed rami posterior inferior fagging flange.The intensity that periphery wall Yu 12 junction of bottom wall can be reinforced as a result, makes the integral strength of battery pack
It is bigger, and then battery pack is made to be able to bear bigger pressure.
The battery pack of embodiment according to a further aspect of the invention, including being used under battery pack described in above-described embodiment
Shell 100.Other constructions such as battery modules etc. of battery pack have been the prior art and have been those skilled in the art
It is known, therefore do not elaborate for other constructions of battery pack here.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Within mind and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (12)
1. a kind of lower case (100) for battery pack characterized by comprising
The edge of lower case ontology (1), the lower case ontology (1) has mounting flange (11), the lower case ontology
It (1) include: bottom wall (12) and periphery wall, the periphery wall includes: antetheca (131), rear wall (132) and is connected to the antetheca
(131) a pair of sidewalls (133) between the rear wall (132), the side wall (133) include: side wall leading portion (1331) and side
Wall back segment (1332), the side wall back segment (1332) are connected obliquely in the side wall leading portion (1331) and the rear wall (132)
Between, and the distance between a pair of described side wall back segment (1332) trend that tapers off from front to back, so that the lower case
Ontology (1) is configured with the rectangle of two unfilled corners.
2. the lower case (100) according to claim 1 for battery pack, which is characterized in that one of them described side wall
Back segment (1332) is configured to forceful electric power pinboard mounting portion (13321), another described side wall back segment (1332) is configured to light current
Pinboard mounting portion (13322).
3. the lower case (100) according to claim 2 for battery pack, which is characterized in that one of side wall
Side wall back segment avoid holes (13323) are provided on back segment (1332), and the lower case (100) includes: forceful electric power side stiffening plate
(2), forceful electric power side stiffening plate (2) is fixed on the inner wall of one of side wall back segment (1332), the forceful electric power side
Stiffening plate (2) has stiffening plate avoid holes (21), the stiffening plate avoid holes (21) and the side wall back segment avoid holes (13323)
Position is corresponding.
4. the lower case (100) according to claim 3 for battery pack, which is characterized in that forceful electric power side stiffening plate
(2) there is forceful electric power side stiffening plate upper overturning (22), be provided with forceful electric power side stiffening plate on the forceful electric power side stiffening plate upper overturning (22)
Positioning column (221).
5. the lower case (100) according to claim 4 for battery pack, which is characterized in that further include: weak-feedback side of transmission line is reinforced
Plate (3), the weak-feedback side of transmission line stiffening plate (3) include: one be fixed on the inner wall of another side wall back segment (1332)
Part and the another part being fixed on the inner wall of the rear wall (132), the weak-feedback side of transmission line stiffening plate (3) have weak-feedback side of transmission line
Stiffening plate upper overturning (31) is provided with two groups of weak-feedback side of transmission line positioning columns (311) on the weak-feedback side of transmission line stiffening plate upper overturning (31), wherein
One group of weak-feedback side of transmission line positioning column (311) is corresponding with described another side wall back segment (1332), another set weak-feedback side of transmission line positioning column
(311) corresponding with the rear wall (132).
6. the lower case (100) according to claim 5 for battery pack, which is characterized in that further include:
Fixed bracket (4), the fixed bracket (4) are laterally extended and are supported on the weak-feedback side of transmission line stiffening plate upper overturning (31) and institute
It states on forceful electric power side stiffening plate upper overturning (22) and the light current side positioning as described in the forceful electric power side stiffening plate positioning column (221), two groups
Column (311) positioning.
7. the lower case (100) according to claim 1 for battery pack, which is characterized in that each leading portion side wall
(133) it is provided on inner wall support frame (5), support frame as described above (5) has supporting surface (51), sets on the supporting surface (51)
It is equipped with supporting surface positioning column (511).
8. the lower case (100) according to claim 7 for battery pack, which is characterized in that support frame as described above (5) is to open
Mouthful towards the ipsilateral leading portion side wall (133) " u "-shaped, and the open end of support frame as described above (5) is provided with towards away from each other
The open end flange (52) that extends of direction, the open end flange (52) and the leading portion side wall (133) are fixed, the support
The upper wall (53) and lower wall of frame (5) are arranged in parallel, and on the perpendicular wall (55) being connected between the upper wall (53) and the lower wall
It is provided with Lightened structure spaced apart (551), the upper surface of the upper wall (53) is configured to the supporting surface (51).
9. the lower case (100) according to claim 7 for battery pack, which is characterized in that support frame as described above (5) and institute
It states bottom wall (12) to be spaced apart, the front end of support frame as described above (5) extends to the side wall leading portion (1331) and the antetheca (131)
At connecting corner, the rear end of support frame as described above (5) extends to the side wall leading portion (1331) and the side wall back segment (1332)
Junction.
10. the lower case (100) according to claim 9 for battery pack, which is characterized in that further include:
Preceding lower supporting plate (6), lower-left support plate (7), the rami posterior inferior fagging (8) for being fixed on the bottom wall (12) and being sequentially connected
With bottom right support plate (9), it is provided with support plate positioning column (101) in each support plate, the lower-left support plate (7) is located at left side
Support frame as described above (5) below, the bottom right support plate (9) be located at right side support frame as described above (5) lower section.
11. the lower case (100) according to claim 10 for battery pack, which is characterized in that the lower-left support plate
(7) there is the lower-left support plate upper overturning (71) fixed with the corresponding leading portion side wall (133), the bottom right support plate (9)
With the bottom right support plate upper overturning (91) fixed with the corresponding leading portion side wall (133), the preceding lower supporting plate (6) has
The fixed preceding lower supporting plate upper overturning (61) with the antetheca (131), the rami posterior inferior fagging (8) have and two side walls
The rami posterior inferior fagging flange that back segment (1332) and the rear wall (132) are fixed.
12. a kind of battery pack, which is characterized in that including being used under battery pack described according to claim 1 any one of -11
Shell (100).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710979078.6A CN109560218B (en) | 2017-10-19 | 2017-10-19 | Lower shell for battery pack and battery pack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710979078.6A CN109560218B (en) | 2017-10-19 | 2017-10-19 | Lower shell for battery pack and battery pack |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109560218A true CN109560218A (en) | 2019-04-02 |
| CN109560218B CN109560218B (en) | 2022-09-20 |
Family
ID=65864184
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710979078.6A Active CN109560218B (en) | 2017-10-19 | 2017-10-19 | Lower shell for battery pack and battery pack |
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| Country | Link |
|---|---|
| CN (1) | CN109560218B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022174832A1 (en) * | 2021-02-22 | 2022-08-25 | 蜂巢能源科技股份有限公司 | Battery pack lower case and battery pack |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN109560218B (en) | 2022-09-20 |
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