CN108767169A - A kind of butt-welding type aluminium alloy module unit tray and battery pack - Google Patents
A kind of butt-welding type aluminium alloy module unit tray and battery pack Download PDFInfo
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- CN108767169A CN108767169A CN201810930068.8A CN201810930068A CN108767169A CN 108767169 A CN108767169 A CN 108767169A CN 201810930068 A CN201810930068 A CN 201810930068A CN 108767169 A CN108767169 A CN 108767169A
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- crossbeam
- module unit
- fixed beam
- butt
- unit tray
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
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- 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
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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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- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Battery Mounting, Suspending (AREA)
Abstract
The present invention relates to a kind of butt-welding type aluminium alloy module unit tray and battery packs, butt-welding type aluminium alloy module unit tray includes two fixed beams and several crossbeams, two fixed beams are arranged in parallel and are connect respectively with the Battery case, and the both ends of the crossbeam are respectively welded in two fixed beams；It is molded by extrusion die using aluminum alloy materials between the fixed beam and crossbeam and welding connects.The butt-welding type aluminium alloy module unit tray of the present invention, is formed by aluminum alloy materials by the molding component welding of extrusion die, and mold is cheap, is easy to get, and reduces development cost, production efficiency is high, can adapt to large-scale production demand, increases economic benefit.
Description
Technical field
The present invention relates to field of new energy technologies, and in particular to a kind of butt-welding type aluminium alloy module unit tray and battery pack.
Background technology
Present Global auto industry is faced with the huge challenge of energy and environment problem；Capacity usage ratio is high, to environment without
The pure electric automobile of pollution has become the direction of future automobile industrial development.As the core component of pure electric automobile, power
The structure design of battery pack will directly influence the vehicle performance of pure electric automobile with security performance.Due to being given in pure electric automobile
The reserved installation space of battery pack is smaller and in irregular shape, in order to make full use of the limited space of battery pack, it is often necessary to cloth
Two layers of module are set, the design of two layers of module unit tray just becomes particularly necessary.
Two layers of pallet of traditional power battery pack mostly use metal plate welding mode, pass through artificial laser blanking, bender
Bending forms, and the consistency of product is low, and surface is not smooth enough, and low production efficiency is unfavorable for mass producing.In addition, traditional
For two layers of pallet of power battery pack due to using metal plate welding mode, weight is larger, difficult with the raising required energy density
To meet customer requirement.
Invention content
The technical problem to be solved by the present invention is in view of the deficiencies of the prior art, provide a kind of butt-welding type aluminium alloy module
Pallet and battery pack.
The technical solution that the present invention solves above-mentioned technical problem is as follows：A kind of butt-welding type aluminium alloy module unit tray, including two
A fixed beam and several crossbeams, two fixed beams are arranged in parallel and are connect respectively with the Battery case, the crossbeam
Both ends are respectively welded in two fixed beams；Pass through extrusion die using aluminum alloy materials between the fixed beam and crossbeam
Molding and welding connection.
The beneficial effects of the invention are as follows：The butt-welding type aluminium alloy module unit tray of the present invention, by aluminum alloy materials by squeezing
The molding component welding of compression mould forms, and mold is cheap, is easy to get, and reduces development cost, production efficiency is high, can adapt to
Large-scale production demand, increases economic benefit；And using the pallet of aluminum alloy materials extrusion forming, weight is lighter, and it can be with
Effectively promote battery pack energy density；And due to using aluminum alloy materials, supporting beam need not be set, saved in battery case
Portion space；By way of fixed beam and cross beam pie welding, can by adjusting crossbeam quantity or adjustment crossbeam between
Gap or the length for adjusting crossbeam can easily adjust the size of pallet according to actual needs, to adapt to the need of disparity items
It asks, is more widely applied, while crossbeam is not continuous, but independently of each other, there are gaps between crossbeam, can mitigate in this way
The weight of a part of pallet improves energy density.
Based on the above technical solution, the present invention can also be improved as follows.
Further, the relative inner edge of two fixed beams is formed with step A, and the step A is along the fixation
The length direction of beam extends to the both ends of the fixed beam；
Crossbeam both ends end is formed with step B, the step B and extends to the cross along the width direction of the crossbeam
The both ends of beam；The step A and the step B adaptation dock simultaneously be welded and fixed, and the upper and lower surface of the fixed beam respectively with
The upper and lower surface of the crossbeam is concordant.
Advantageous effect using above-mentioned further scheme is：Fixed beam and crossbeam use step splicing construction, first will be horizontal
Beam both ends are crimped in fixed beam, then are welded and fixed, and fixed beam is made to play certain supporting role, Ke Yiyou to crossbeam
Effect improves the welding intensity of pallet.
Further, the fixed beam upper surface, which raises up, is formed with connection cavity, and the connection cavity is along the fixation
The length direction of beam extends to the both ends of the fixed beam, is offered on the connection cavity and battery modules or Battery case company
The first connecting hole connect.
Advantageous effect using above-mentioned further scheme is：The first cavity, convenient and battery modules are formed in fixed beam
Connection, and also mitigate whole weight.
Further, it is equipped in the fixed beam and keeps away heavy chamber, it is described to keep away heavy chamber and extend along the fixed beam length direction
To the both ends of the fixed beam.
Advantageous effect using above-mentioned further scheme is：Setting keeps away heavy chamber in fixed beam, can effectively mitigate solid
Determine the weight of beam.
Further, the surface of the crossbeam is connected with several reinforcing ribs.
Advantageous effect using above-mentioned further scheme is：It is wholely set reinforcing rib on first crossbeam surface, it can be into one
Step increases the bearing strength of first crossbeam.
Further, the reinforcing rib extends to the both ends of the crossbeam along the length direction of the crossbeam.
Advantageous effect using above-mentioned further scheme is：Reinforcing rib is extended to the two of crossbeam along the length direction of crossbeam
End, can effectively enhance the bearing strength of crossbeam.
Further, the crossbeam is internally provided with several third cavities.
Advantageous effect using above-mentioned further scheme is：Third cavity is set inside crossbeam, mitigation weight can be played
While amount, battery pack anti-vibration and impact resistance are effectively promoted.
Further, it is formed using agitating friction weldering welding between the fixed beam and the crossbeam.
Further, several wire harness fixing supports are respectively welded on the crossbeam.
Advantageous effect using above-mentioned further scheme is：Several harness are respectively set on the first pallet and the second pallet
Fixing bracket facilitates the fixation of harness in battery modules, and simple in structure, occupied space is few, does not interfere with aluminium alloy extrusions pallet
Whole structural strength.
A kind of battery pack, including Battery case, battery modules and the module unit tray, the module unit tray are mounted on institute
It states in Battery case, the battery modules are separately mounted on the bottom girder of the Battery case and on the module unit tray.
The beneficial effects of the invention are as follows：The battery pack of the present invention, two layers of module unit tray of setting inside Battery case, two layers
Module unit tray plays the role of supporting other devices in two layers of battery modules or battery pack, Neng Gouchong in entire battery pack
Divide and utilize battery pack inner space, while under the premise of ensure that integral strength, alleviating the weight of battery pack itself as far as possible
Amount.
Description of the drawings
Fig. 1 is the dimensional structure diagram of the first pallet of the present invention；
Fig. 2 is the enlarged structure schematic diagram in the portions A in Fig. 1；
Fig. 3 is the dimensional structure diagram of the second pallet of the present invention；
Fig. 4 is the enlarged structure schematic diagram in the portions B in Fig. 3；
Fig. 5 is the exploded perspective structural schematic diagram of the second pallet of the present invention；
Fig. 6 is the dimensional structure diagram of the first crossbeam and second cross beam of the present invention；
Fig. 7 is the dimensional structure diagram of the first pallet and the second pallet of the present invention；
Fig. 8 is the vertical view of the first pallet and the second pallet of the present invention；
Fig. 9 is the A-A cross-sectional views of Fig. 8；
Figure 10 is the dimensional structure diagram inside the battery pack of the present invention.
In attached drawing, parts list represented by the reference numerals are as follows：
100, the first pallet；101, the first fixed beam；102, first crossbeam；103, first step；104, second step；
105, reinforcing rib；106, the first cavity；107, the first connecting hole；108, the first connecting plate；109, the first mounting hole；110, the 4th
Cavity；111, first boss；
200, the second pallet；201, the second fixed beam；202, second cross beam；203, third step；204, the 4th step；
205, the second cavity；206, third cavity；207, the second connecting hole；208, the second connecting plate；209, the second mounting hole；210,
Five cavities；211, second boss；
300, Battery case；301, column；
400, battery modules；
500, wire harness fixing support.
Specific implementation mode
The principle and features of the present invention will be described below with reference to the accompanying drawings, and the given examples are served only to explain the present invention, and
It is non-to be used to limit the scope of the present invention.
Embodiment 1
As shown in figs. 1 to 9, a kind of butt-welding type aluminium alloy module unit tray of the present embodiment, including the first pallet 100, it is described
First pallet 100 includes two the first fixed beams 101 and several first crossbeams 102, two first fixed beam, 101 parallel cloth
It sets and is connected respectively at the Battery case 300, the both ends of the first crossbeam 102 are respectively welded at two described first and fix
On beam 101.By the way of several first crossbeams and the first fixed beam welding, can by adjusting first crossbeam quantity or
The length in gap or adjustment first crossbeam between adjustment first crossbeam can easily adjust first according to actual needs
The size of pallet is more widely applied, while first crossbeam is not continuous with adapting to the demand of disparity items, but mutually
Independent, there are gaps between first crossbeam, can mitigate the weight of a part of first pallet in this way, improve energy density.It is described
First pallet 100 is horizontally set on inside Battery case, for carrying battery modules.First pallet 100 mainly uses lightweight aluminium
Alloy, weight is lighter, can effectively promote battery pack energy density.
The butt-welding type aluminium alloy module unit tray of the present embodiment is spelled using aluminum alloy materials by the molding component of extrusion die
It welds, mold is cheap, is easy to get, and reduces development cost, and production efficiency is high, can adapt to large-scale production demand, increases
Economic benefit is added；And using the pallet of aluminum alloy materials extrusion forming, weight is lighter, can effectively promote battery pack energy
Density；And due to using aluminum alloy materials, supporting beam need not be set, save battery case inner space.
Specifically, as shown in figs. 1 to 9, a concrete scheme of the present embodiment is to be located at 101 both ends of the first fixed beam
The edge of two first crossbeams 102 is concordant with the end of first fixed beam 101, makes first crossbeam 102 and the first fixed beam
101 are encircled into a square platy structure.Preferably, the first pallet 100 is provided with 5 first crossbeams, 102,5 first crossbeams
102 both ends are all respectively welded in two first fixed beams 101.First crossbeam 102 and the first fixed beam 101 are respectively rectangular
The tablet of shape.
As shown in figs. 1 to 9, the relative inner edge of two of the present embodiment first fixed beams 101 is formed with
One step 103, the first step 103 extend to first fixed beam 101 along the length direction of first fixed beam 101
Both ends；102 both ends end of the first crossbeam is formed with second step 104, and the second step 104 is along the first crossbeam
102 width direction extends to the both ends of the first crossbeam 102；The first step 103 and the second step 104 are adapted to
It docks and is welded and fixed, and the upper and lower surface of first fixed beam 101 is flat with the upper and lower surface of the first crossbeam 102 respectively
Together.First fixed beam and first crossbeam use step splicing construction, and first first crossbeam both ends are crimped in the first fixed beam,
It is welded and fixed again, the first fixed beam is made to play certain supporting role to first crossbeam, can effectively improve the first support
The welding intensity of disk.Wherein, the number of first step 103 can be one or more, can be configured as needed, second
The number of rank 104 is adapted with the number of first step 103.In fact, first step and second step are just respectively equivalent to platform
Rank A and step B.
As shown in fig. 6, the surface of the first crossbeam 102 of the present embodiment is connected with several reinforcing ribs 105；It is described
The first cavity 106, length direction of first cavity 106 along first fixed beam 101 are formed in first fixed beam 101
The both ends of first fixed beam 101 are extended to, are offered on first cavity 106 and battery modules 400 or Battery case
First connecting hole 108 of 300 connections.It is wholely set reinforcing rib on first crossbeam surface, first crossbeam can be further increased
Bearing strength；The first cavity is formed in the first fixed beam, it is convenient to be connect with battery modules, and also mitigate whole weight
Amount.In fact, the reinforcing rib 105 on first crossbeam 102 extends to first crossbeam 102 along the length direction of first crossbeam 102
Both ends, and a reinforcing rib 105 has respectively been extended to form on the both sides of the edge of first crossbeam 102, in this two reinforcing ribs 105
Between be additionally provided with several reinforcing ribs 105, each reinforcing rib 105 is arranged parallel to, since the first pallet 100 is located at the second pallet
200 top, the setting of reinforcing rib 105 on the first pallet 100 in weight advantageously can make first compared to the second pallet
The weight of pallet carrying is lighter.
Specifically, as shown in figs. 1 to 9, the first cavity 106 is the upward formation in upper surface by the first fixed beam 101
The first boss 111 of one strip, first boss 111 extend to described first along the length direction of the first fixed beam 101 and fix
Then the both ends of beam 101 form first cavity 106 inside first boss 111, the first cavity 106 is along first boss 111
Length direction extend to the both ends of the first boss 111.That is the first cavity 106 is encircleed in 101 upper surface of the first fixed beam
Act the structure formed.Other than opening up the first connecting hole 107 on the first cavity 106, also offered in the first fixed beam 101
First mounting hole 107, for convenience connection with battery modules or Battery case.And the first fixed beam 101 with it is described
The opposite a side of first step 103 is along upper the first connecting plate for integrally extending to form multiple trapezoidal, triangles or circle etc.
108, the first mounting hole 109 is also offered on the first connecting plate 108, the first connecting plate 108 can be real by the first mounting hole 109
Now it is connected and fixed with Battery case 300.
And it should be noted that as shown in Fig. 2, in addition to the first cavity 106 setting, in the first fixed beam 101
Portion can also be arranged as required to several 4th cavities 110, and the 4th cavity 110 is arranged primarily to mitigating entire pallet
Weight improves whole energy density.Moreover, when the 4th cavity 110 is located in the first fixed beam 101, can be arranged first
The lower section of cavity 106 can also be arranged in the side of the first cavity 106, and the structure of the 4th cavity 110 can be selected arbitrarily, example
Cross section can be such as selected to be square, rectangle, ellipse, circle, diamond shape or long arc-shaped, the present embodiment is preferably flat
Flat string configuration keeps whole load bearing effect more preferable.And the first cavity 106 could be provided as square, rectangle, ellipse
Shape, circle, diamond shape grow the shapes such as arc-shaped, and the width of the first cavity 106 in the vertical direction can be slightly larger than the 4th type
The width of chamber 110 in the vertical direction conveniently can reserve enough installation spaces for connection bolt.
The butt-welding type aluminium alloy module unit tray of the present embodiment, using extruded aluminium section technique, production efficiency is high, can adapt to
Large-scale production demand, aluminium alloy module unit tray material use light aluminum alloy, and weight is lighter, can effectively promote the energy of battery pack
Metric density.And aluminium alloy module unit tray need not design supporting beam, be greatly saved in case compared to metal plate welding scheme
Space.Aluminium alloy module unit tray effectively improves battery pack anti-vibration and impact resistance by the cavity structure of reasonable design.
First pallet of the present embodiment all by the way of crossbeam and fixed beam welding, adjust crossbeam quantity or adjustment crossbeam gap or
The length of adjustment crossbeam can easily adjust the size of pallet, to adapt to disparity items demand, application according to actual needs
More extensively, meanwhile, crossbeam is not continuous, and is independent from each other, between there are gaps, a part of weight can be mitigated,
Substantially increase energy density.
Embodiment 2
In fact, a kind of butt-welding type aluminium alloy module unit tray of the present embodiment, including the second pallet 200, in the present embodiment
The first pallet 100 it is similar with 200 general structure of the second pallet, but detail structure is different.
As shown in figs. 1 to 9, in the present embodiment, second pallet 200 includes two the second fixed beams 201 and several
Second cross beam 202, two second fixed beams 201 are arranged in parallel and are connect respectively with the Battery case 300, described second
The both ends of crossbeam 202 are respectively welded in two second fixed beams 201.It is spelled using several second cross beams and the second fixed beam
The mode of weldering can either adjust the gap between second cross beam or adjustment second cross beam by adjusting the quantity of second cross beam
Length can easily adjust the size of the second pallet according to actual needs, to adapt to the demand of disparity items, using more
Add extensively, while second cross beam is not continuous, but independently of each other, there are gaps between second cross beam, can mitigate in this way
The weight of a part of second pallet, improves energy density.
Specifically, as shown in figs. 1 to 9, a concrete scheme of the present embodiment is to be located at 201 both ends of the second fixed beam
The edge of two second cross beams 202 is concordant with the end of second fixed beam 201, makes second cross beam 202 and the second fixed beam
201 are encircled into a square platy structure.Preferably, the second pallet 200 is provided with 5 second cross beams, 202,5 second cross beams
202 both ends are all respectively welded in two second fixed beams 201.Second cross beam 202 and the second fixed beam 201 are respectively rectangular
The tablet of shape.
As shown in figs. 1 to 9, the edge of second fixed beam 201 of the present embodiment is formed with a third step 203,
The third step 203 extends to the both ends of second fixed beam 201 along the length direction of second fixed beam 201；Institute
It states 202 both ends end of second cross beam and is formed with one the 4th step 204, the 4th step 204 is along the second cross beam 202
Width direction extends to the both ends of the second cross beam 202；The third step 203 and the 4th step 204 adaptation docking
And be welded and fixed, and the upper and lower surface of second fixed beam 201 is concordant with the upper and lower surface of the second cross beam 202 respectively.
Second fixed beam and second cross beam use step splicing construction, and first second cross beam both ends are crimped in the second fixed beam, then
It is welded and fixed, the second fixed beam is made to play certain supporting role to second cross beam, can effectively improve the second pallet
Welding intensity.Wherein, the number of third step 203 can be one or more, can be configured as needed, the 4th step
204 number is adapted with the number of third step 203.
As shown in figs. 1 to 9, it is formed with the second cavity 205 in second fixed beam 201 of the present embodiment, described second
Cavity 205 extends to the both ends of second fixed beam 201, the second type along the length direction of second fixed beam 201
The second connecting hole 207 being connect with battery modules 400 or Battery case 300 is offered on chamber 205；In second pallet 200
Portion is equipped with several third cavities 206.Second cavity is set in the second fixed beam, it is convenient to be attached with battery modules；Third
The setting of cavity effectively promotes battery pack anti-vibration and impact resistance while can playing mitigation weight.
Specifically, as shown in figs. 1 to 9, the second cavity 205 is the upward formation in upper surface by the second fixed beam 201
The second boss 211 of one strip, second boss 211 extend to described second along the length direction of the second fixed beam 201 and fix
Then the both ends of beam 201 form second cavity 205 inside second boss 211, the second cavity 205 is along second boss 211
Length direction extend to the both ends of the second boss 211.That is the second cavity 205 is encircleed in 201 upper surface of the second fixed beam
Act the structure formed.Other than opening up the second connecting hole 209 on the second cavity 205, also offered in the second fixed beam 201
Second mounting hole 209, for convenience connection with battery modules 400 or Battery case 300.And in the second fixed beam 201
A side opposite with the second step 104 integrally extends to form the second of multiple trapezoidal, triangles or circle etc. along upper
Connecting plate 208, also offers the second mounting hole 209 on the second connecting plate 208, and the second connecting plate 208 can pass through the second installation
The realization of hole 209 is connected and fixed with Battery case 300.
And it should be noted that as shown in figure 4, in addition to the second cavity 205 setting, in the second fixed beam 201
Portion is equipped with the 5th cavity 210, and several third cavities 206, third cavity 206 and the 5th cavity are equipped in the second cross beam 202
210 setting improves whole energy density primarily to mitigate the weight of entire pallet.Moreover, in the second fixed beam 201
The 5th cavity 210, can be arranged can also be arranged in the lower section of the second cavity 205 in the side of the second cavity 205, the 5th
The structure of cavity 210 can be selected arbitrarily, such as cross section can be selected to be square, rectangle, ellipse, circle, diamond shape
Or it is long arc-shaped etc., the present embodiment is preferably flat string configuration, keeps whole load bearing effect more preferable.And the second cavity can be with
The shapes such as setting is square, rectangle, ellipse, circle, diamond shape or length are arc-shaped, and the second cavity 205 is in vertical side
Upward width can be slightly larger than the width of the 5th cavity 210 in the vertical direction, can conveniently be reserved for connection bolt enough
Installation space.Third cavity 206 on second cross beam 202 mainly uses partially flat structure, and prolonging along second cross beam 202
It opens up direction to be extended, third cavity 206 is set on second cross beam 202 primarily to promoting battery pack anti-vibration and resistance to punching
Hit performance.Moreover, being preferably provided with two third cavities 206 arranged side by side inside every second cross beam 202, make second cross beam
Certain supporting role is played also by the junction of two third cavities 206 in 202 middle part.
In above-mentioned two embodiment, the weight of first pallet 100 is less than the weight of the second pallet 200；Described first
Pallet 100 and the second pallet 200 are respectively adopted agitating friction weldering welding and form.The weight of first pallet is less than the weight of the second pallet
Amount, in the case where carrying the battery modules of identical weight, the tolerance positioned at two layers of the first pallet being vacantly arranged is stronger,
Support effect is more preferable.
In above-mentioned two embodiment, the 4th cavity and the 5th cavity all keep away heavy chamber to be described, and it is whole to can act as mitigation
The effect of body weight.And the 4th the setting of cavity and the 5th cavity can also promote the anti-vibration and impact resistance of battery pack entirety
The characteristics of.First cavity and the second cavity are all the connection cavity, can act as the effect of connection Battery case.
As shown in figs. 1 to 9, it is respectively welded on first pallet, 100 and second pallet 200 of the present embodiment several
Wire harness fixing support 500, wire harness fixing support is specifically welded on crossbeam, 500 U-shaped structure of wire harness fixing support, and harness is solid
500 both ends of fixed rack extend to form two welding edges to both sides respectively, and two welding edges are located at the wire harness fixing support
500 both sides, wire harness fixing support 500 are weldingly fixed on by welding edge on the first pallet 100 or the second pallet 200.?
Several wire harness fixing supports are respectively set on one pallet and the second pallet, facilitate the fixation of harness in battery modules, it is simple in structure,
Occupied space is few, does not interfere with the structural strength of aluminium alloy extrusions pallet entirety.
As shown in Figure 10, first pallet 100 of the present embodiment and the second pallet 200 can be connected directly between Battery case
On 300, or it is connected on Battery case 300 by column 301.
The butt-welding type aluminium alloy module unit tray of the present embodiment, using extruded aluminium section technique, production efficiency is high, can adapt to
Large-scale production demand, aluminium alloy module unit tray material use light aluminum alloy, and weight is lighter, can effectively promote the energy of battery pack
Metric density.And aluminium alloy module unit tray need not design supporting beam, be greatly saved in case compared to metal plate welding scheme
Space.Aluminium alloy module unit tray effectively improves battery pack anti-vibration and impact resistance by the cavity structure of reasonable design.
Second pallet of the present embodiment all by the way of crossbeam and fixed beam welding, adjust crossbeam quantity or adjustment crossbeam gap or
The length of adjustment crossbeam can easily adjust the size of pallet, to adapt to disparity items demand, application according to actual needs
More extensively, meanwhile, crossbeam is not continuous, and is independent from each other, between there are gaps, a part of weight can be mitigated,
Substantially increase energy density.
Embodiment 3
As shown in Figure 10, a kind of battery pack of the present embodiment, including Battery case 300, battery modules 400 and described
Module unit tray, the module unit tray are mounted in the Battery case 300, and the battery modules 400 are separately mounted to the electricity
On the bottom girder of pond babinet and the module unit tray.Column 301, first support of the present embodiment are equipped in the Battery case 300
The second connecting plate 208 on the first connecting plate 108 or the second pallet 200 on disk 100 passes through the first mounting hole 109 or the respectively
Two mounting holes 209 are connected to 301 upper end of column, and the column lower end is connected on the Battery case.
Two layers of module unit tray are arranged in the battery pack of the present embodiment inside Battery case, and two layers of module unit tray are in entire electricity
Play the role of supporting other devices in two layers of battery modules or battery pack in the packet of pond, can make full use of inside battery pack
Space, while under the premise of ensure that integral strength, the weight of battery pack itself is alleviated as far as possible.
In the description of the present invention, it is to be understood that, term "center", " longitudinal direction ", " transverse direction ", " length ", " width ",
" thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside", " up time
The orientation or positional relationship of the instructions such as needle ", " counterclockwise ", " axial direction ", " radial direction ", " circumferential direction " be orientation based on ... shown in the drawings or
Position relationship is merely for convenience of description of the present invention and simplification of the description, and does not indicate or imply the indicated device or element must
There must be specific orientation, with specific azimuth configuration and operation, therefore be not considered as limiting the invention.
In addition, term " first ", " second " are used for description purposes only, it is not understood to indicate or imply relative importance
Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Implicitly include at least one this feature.In the description of the present invention, the meaning of " plurality " is at least two, such as two, three
It is a etc., unless otherwise specifically defined.
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " fixation " etc.
Term shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；Can be that machinery connects
It connects, can also be electrical connection；It can be directly connected, can also can be indirectly connected through an intermediary in two elements
The interaction relationship of the connection in portion or two elements, unless otherwise restricted clearly.For those of ordinary skill in the art
For, the specific meanings of the above terms in the present invention can be understood according to specific conditions.
In the present invention unless specifically defined or limited otherwise, fisrt feature can be with "above" or "below" second feature
It is that the first and second features are in direct contact or the first and second features pass through intermediary mediate contact.Moreover, fisrt feature exists
Second feature " on ", " top " and " above " but fisrt feature be directly above or diagonally above the second feature, or be merely representative of
Fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " lower section " and " below " can be
One feature is directly under or diagonally below the second feature, or is merely representative of fisrt feature level height and is less than second feature.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example
Point is included at least one embodiment or example of the invention.In the present specification, schematic expression of the above terms are not
It must be directed to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be in office
It can be combined in any suitable manner in one or more embodiments or example.In addition, without conflicting with each other, the skill of this field
Art personnel can tie the feature of different embodiments or examples described in this specification and different embodiments or examples
It closes and combines.
Although the embodiments of the present invention has been shown and described above, it is to be understood that above-described embodiment is example
Property, it is not considered as limiting the invention, those skilled in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, changes, replacing and modification.
Claims (10)
1. a kind of butt-welding type aluminium alloy module unit tray, which is characterized in that including two fixed beams and several crossbeams, two described solid
Determine beam parallel arrangement and connect respectively with the Battery case, the both ends of the crossbeam are respectively welded at two fixed beams
On；It is molded by extrusion die using aluminum alloy materials between the fixed beam and crossbeam and welding connects.
2. a kind of butt-welding type aluminium alloy module unit tray according to claim 1, which is characterized in that the phase of two fixed beams
Step A, the step A are formed with along place to inner side edge and extend to the two of the fixed beam along the length direction of the fixed beam
End；
Crossbeam both ends end is formed with step B, the step B and extends to the crossbeam along the width direction of the crossbeam
Both ends；The step A and the step B adaptation dock simultaneously be welded and fixed, and the upper and lower surface of the fixed beam respectively with it is described
The upper and lower surface of crossbeam is concordant.
3. a kind of butt-welding type aluminium alloy module unit tray according to claim 1, which is characterized in that the fixed beam upper table towards
Upper protrusion is formed with connection cavity, and the connection cavity extends to the two of the fixed beam along the length direction of the fixed beam
It holds, the first connecting hole being connect with battery modules or Battery case is offered on the connection cavity.
4. a kind of butt-welding type aluminium alloy module unit tray according to claim 1, which is characterized in that be equipped with and keep away in the fixed beam
Heavy chamber, the both ends kept away heavy chamber and extend to the fixed beam along the fixed beam length direction.
5. according to a kind of any one of Claims 1-4 butt-welding type aluminium alloy module unit tray, which is characterized in that the crossbeam
Surface be connected with several reinforcing ribs.
6. a kind of butt-welding type aluminium alloy module unit tray according to claim 5, which is characterized in that the reinforcing rib is along the cross
The length direction of beam extends to the both ends of the crossbeam.
7. according to a kind of any one of Claims 1-4 butt-welding type aluminium alloy module unit tray, which is characterized in that the crossbeam
It is internally provided with several third cavities.
8. a kind of butt-welding type aluminium alloy module unit tray according to claim 1, which is characterized in that the fixed beam and the cross
It is formed using agitating friction weldering welding between beam.
9. a kind of butt-welding type aluminium alloy module unit tray according to claim 1, which is characterized in that be respectively welded on the crossbeam
There are several wire harness fixing supports.
10. a kind of battery pack, which is characterized in that including Battery case, battery modules and claim 1 to 9 any one of them
Module unit tray, the module unit tray are mounted in the Battery case, and the battery modules are separately mounted to the Battery case
Bottom girder on and the module unit tray on.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810930068.8A CN108767169A (en) | 2018-08-15 | 2018-08-15 | A kind of butt-welding type aluminium alloy module unit tray and battery pack |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810930068.8A CN108767169A (en) | 2018-08-15 | 2018-08-15 | A kind of butt-welding type aluminium alloy module unit tray and battery pack |
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| CN108767169A true CN108767169A (en) | 2018-11-06 |
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| CN201810930068.8A Pending CN108767169A (en) | 2018-08-15 | 2018-08-15 | A kind of butt-welding type aluminium alloy module unit tray and battery pack |
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| CN109638195A (en) * | 2018-12-25 | 2019-04-16 | 东风时代(武汉)电池系统有限公司 | Shell with Integral bending bridging type frame |
| CN109768199A (en) * | 2019-01-16 | 2019-05-17 | 广汽新能源汽车有限公司 | The production method of battery involucrum lower case |
| CN110549875A (en) * | 2019-09-11 | 2019-12-10 | 威马智慧出行科技（上海）有限公司 | Battery box and vehicle |
| CN111653700A (en) * | 2020-04-20 | 2020-09-11 | 蜂巢能源科技有限公司 | Battery pack assembly |
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