CN116417741A - Battery pack assembly - Google Patents
Battery pack assembly Download PDFInfo
- Publication number
- CN116417741A CN116417741A CN202211216134.8A CN202211216134A CN116417741A CN 116417741 A CN116417741 A CN 116417741A CN 202211216134 A CN202211216134 A CN 202211216134A CN 116417741 A CN116417741 A CN 116417741A
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- battery pack
- pack assembly
- assembly
- frame body
- pack unit
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- 230000007246 mechanism Effects 0.000 claims description 42
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 36
- 230000000712 assembly Effects 0.000 claims description 21
- 238000000429 assembly Methods 0.000 claims description 21
- 238000012423 maintenance Methods 0.000 claims description 17
- 230000003014 reinforcing effect Effects 0.000 claims description 17
- 125000006850 spacer group Chemical group 0.000 claims description 6
- 238000004891 communication Methods 0.000 claims description 4
- 230000002787 reinforcement Effects 0.000 claims 1
- 230000009471 action Effects 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000002131 composite material Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 230000003993 interaction Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
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Classifications
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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
- H01M50/262—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders with fastening means, e.g. locks
- H01M50/264—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders with fastening means, e.g. locks for cells or batteries, e.g. straps, tie rods or peripheral frames
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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
- H01M50/204—Racks, modules or packs for multiple batteries or multiple cells
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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
- H01M50/244—Secondary casings; Racks; Suspension devices; Carrying devices; Holders characterised by their mounting method
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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
- H01M50/249—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders specially adapted for aircraft or vehicles, e.g. cars or trains
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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
- H01M50/258—Modular batteries; Casings provided with means for assembling
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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
Abstract
The invention discloses a battery pack assembly, which comprises a frame body and an upper fixing piece, wherein a placing groove for placing a battery pack assembly is formed in the frame body; the upper fixing piece is arranged on the frame body and is used for fastening the corresponding battery pack assembly in the placing groove in a pressing mode. According to the battery pack assembly disclosed by the invention, each battery pack assembly only needs to be fixed in position in a downward pressing mode through the upper fixing piece, so that the battery pack assembly is more convenient to assemble and disassemble, and the cost is relatively reduced.
Description
Technical Field
The invention relates to the field of battery packs, in particular to a battery pack assembly.
Background
As a new energy vehicle, the electric automobile has the characteristics of low noise, high energy utilization efficiency, no exhaust emission and the like, and becomes one of strategic emerging industries which are mainly supported in China. Electric automobile realizes the quick promotion of driving mileage through quick replacement battery package, compares with adopting charging pile to charge electric automobile, and owing to its efficient is popular more and more.
The battery pack assembly in the prior art achieves the battery capacity required by the battery pack assembly by connecting a plurality of standard battery packs, the battery pack assembly comprises a frame connected to the body of the electric automobile and a plurality of standard battery packs, the standard battery packs are detachably arranged on the frame through a plurality of bolts, and in the assembly process of the battery pack assembly, a large amount of time is required to be consumed due to the fact that the bolts are fixed, the assembly efficiency is low.
Disclosure of Invention
The invention aims to overcome the defect of assembly efficiency caused by the fact that a large amount of time is consumed for bolt fixing in the assembly process of a battery pack assembly in the prior art.
The invention solves the technical problems by the following technical scheme:
the battery pack assembly is characterized by comprising a frame body and an upper fixing piece, wherein a placing groove for placing a battery pack assembly is formed in the frame body;
the upper fixing piece is arranged on the frame body and is used for fastening the corresponding battery pack assembly in the placing groove in a pressing mode.
In this scheme, adopt above-mentioned structure, every battery package subassembly only need adopt the mode of downward compressing tightly to the fixed position of battery package subassembly through last mounting for the assembly of battery package assembly is more convenient, efficient, convenient to detach, and the cost reduces relatively.
Preferably, the battery pack assembly includes a battery pack unit.
In this scheme, adopt above-mentioned structure, through setting up the battery package unit, the battery package unit quantity in the adjustment battery package subassembly that can be free to satisfy different service scenario.
Preferably, the upper fixing part comprises an upper bracket body connected to the frame body and an upper bracket connecting flange arranged on the upper bracket body and extending towards the side wall direction of the battery pack unit, a box end connecting flange extending towards the upper fixing part direction is correspondingly arranged on the side wall of the battery pack unit, and the upper fixing part is connected with the battery pack unit through the upper bracket connecting flange and the box end connecting flange.
In this scheme, adopt above-mentioned structure, realize battery package subassembly and last support flange's connection through setting up case end flange, avoid going up support flange and directly be connected with battery package unit and lead to battery package unit local structural strength not enough, and then damage easily.
Preferably, the case end connection flange is disposed at a side wall of the battery pack unit in a length direction and horizontally extends along the length direction of the battery pack unit; or (b)
The box end connecting flange is horizontally arranged on the side wall of the battery pack unit in a surrounding mode.
In this scheme, adopt above-mentioned structure, this case end flange can strengthen the lateral wall of battery package unit's length direction, strengthens the structural strength of battery package unit along length direction. Further, through setting up case end flange week on the lateral wall of whole battery package unit, realize local structural strength's improvement, its strengthening effect is better.
Preferably, the box end connecting flange is provided with a threaded hole by embedding an embedded nut, and the upper bracket connecting flange of the upper fixing piece is connected with the box end connecting flange through a threaded connecting piece.
In this scheme, adopt above-mentioned structure, realize threaded connection through the mode of pre-buried embedded nut, can reduce the intensity requirement to battery package unit material, can use non-metallic composite, avoid parts such as its direct connection bolt to cause the damage.
Preferably, the lower end face of the upper bracket connecting flange is propped against the upper surface of the box end connecting flange, and the upper bracket connecting flange is in surface contact with the box end connecting flange.
In this scheme, adopt above-mentioned structure, go up support flange and case end flange and pass through the face contact mode and connect fixedly, simplify the connected form of both, avoid setting up additional structure or trompil etc. and cause cost increase or intensity loss on last mounting and battery package unit.
Preferably, the upper fixing piece is arranged at the opening of the placing groove, and the upper fixing piece is detachably connected with the frame body.
In this scheme, adopt above-mentioned structure, go up the mounting setting and can make things convenient for the dismouting of battery package subassembly in the opening part and can dismantle, better spacing battery package subassembly simultaneously prevents that it from deviating from the opening part.
Preferably, the battery pack assembly comprises at least two battery pack units vertically stacked; the battery pack unit with the largest distance from the bottom of the placing groove in the battery pack assembly is fastened in the placing groove through the upper fixing piece in a pressing mode.
In this scheme, adopt above-mentioned structure, the vertical stack of battery package subassembly, its direction of stacking is the same with last mounting compresses tightly the direction, more makes things convenient for the mounting to pack holistic compressing tightly and spacing of subassembly of battery, simultaneously, the battery package unit that is located the upside also can compress tightly the battery package unit that is located the downside through its gravity further.
Preferably, the frame body comprises an outer box body and a cross beam, and the cross beam is arranged in the outer box body and separates the outer box body into a plurality of placing grooves.
In this scheme, adopt above-mentioned structure, outer box plays the guard action to battery package subassembly, and the crossbeam can be used to strengthen battery package bulk strength, can be used to separate outer box again and make it form a plurality of standing grooves in order to place a plurality of battery package subassemblies.
Preferably, the upper fixing member is disposed at an opening of each of the placement grooves and presses the battery pack assembly in each of the placement grooves.
In this scheme, adopt above-mentioned structure, compress tightly battery package subassembly through same last mounting from the top down, simplify the fixed of battery package subassembly.
Preferably, the battery pack assembly further comprises a lower fixing piece connected to the frame body, and at least one other battery pack unit of the battery pack assembly except for the battery pack unit with the largest distance from the bottom of the placement groove is connected to the placement groove through the lower fixing piece.
In this scheme, adopt above-mentioned structure, compress tightly fixedly through setting up down the mounting alone to the battery package unit except that the top, can further promote the stability of battery package subassembly installation in the standing groove.
Preferably, the lower fixing piece comprises a lower bracket body detachably connected to the frame body and a lower bracket connecting flange arranged on the lower bracket body and extending towards the side wall direction of the battery pack unit, and a box end connecting flange extending towards the direction in which the upper fixing piece is arranged on the side wall of the battery pack unit correspondingly;
the lower bracket connecting flange is connected with the box end connecting flange of the battery pack unit.
In this scheme, adopt above-mentioned structure, through setting up down the mounting, the battery package unit is connected fixedly through corresponding lower mounting and frame unit for the connection of whole battery package subassembly is more firm.
Preferably, the lower bracket body is connected to the outer box body through a plurality of bolt assemblies, and the bolt assemblies are embedded into the outer box body and are distributed at intervals along the length direction of the battery pack unit.
In this scheme, adopt above-mentioned structure, lower mounting is connected with outer box multiple spot, makes both connect more firm.
Preferably, the battery pack assembly further comprises a reinforcing gasket;
the bolt assembly comprises a bolt and a nut which are in threaded engagement;
the outer box comprises a cavity extending along the length direction of the battery pack unit, the reinforcing gasket is embedded into the cavity, and a plurality of bolts sequentially penetrate through the lower bracket body and then extend into the cavity to be connected with the reinforcing gasket through nuts in a fastening mode.
In this scheme, adopt above-mentioned structure, strengthen the gasket increase the structural strength with the tie point department of outer box when bolted connection, the stress that the dispersed junction received. Simultaneously, the frame unit made of the aluminum profile with lower damage strength at the bolt connection part can be avoided.
Preferably, the extending direction of the reinforcing spacer is parallel to the length direction of the battery pack unit.
In this scheme, adopt above-mentioned structure, strengthen the gasket and strengthen the local intensity of outer box department along the length direction of battery package unit.
Preferably, the cavity extends to two ends of the outer box body and is communicated with the external environment of the outer box body.
In this scheme, adopt above-mentioned structure, strengthen the gasket for detachable design, set up the opening on outer box, can conveniently strengthen the getting of gasket and put and replace through this opening, be convenient for the maintenance of whole battery package subassembly.
Preferably, the lower bracket body is further connected to the cross beam through a plurality of bolt assemblies, and the plurality of bolt assemblies are embedded into the cross beam and are distributed at intervals along the length direction of the battery pack unit.
In this scheme, adopt above-mentioned structure, lower mounting is connected with outer box, crossbeam homomultipoint, and the connection of lower mounting is further consolidated.
Preferably, the lower bracket bodies positioned at two sides of the cross beam are connected with the cross beam through the same group of bolt assemblies.
In this scheme, adopt above-mentioned structure, practice thrift the part, reduce crossbeam thickness as far as possible, make the internal volume of standing groove bigger.
Preferably, the lower fixing member is formed by extending the frame body toward the inside of the placement groove.
In this scheme, adopt above-mentioned structure, lower mounting and frame body are undetachable to the step of being connected of lower mounting and frame body has been removed from.
Preferably, the box end connecting flange is located above the lower bracket connecting flange, and a nut is embedded in the box end connecting flange to form a threaded hole, and the lower bracket connecting flange is connected with the box end connecting flange through a threaded connecting piece.
In the scheme, the structure is adopted, and the defect of low structural strength at the box end connecting flange is avoided through the embedded nut, so that the abrasion or deformation of the box end connecting flange is avoided.
Preferably, the connection part of the side wall and the bottom surface of the battery pack unit is obliquely provided with a first guide surface relative to the horizontal plane;
the lower fixing piece further comprises a guide part connected to the lower bracket body, the guide part is located above the lower bracket connecting flange, and a second guide surface matched with the first guide surface is arranged on the guide part.
In this scheme, adopt above-mentioned structure, through the cooperation of first guide surface and second guide surface, realize the lower mounting to the battery package unit that is located the top in the location direction of horizontal direction.
Preferably, the first guiding surface is a plane, and the included angle between the first guiding surface and the vertical surface is 5-20 degrees.
In this scheme, adopt above-mentioned structure, the guiding effect is better.
Preferably, the battery pack assembly comprises a locking mechanism arranged on the cross beam, and the locking mechanism is used for installing the battery pack assembly on an electric automobile.
In this scheme, adopt above-mentioned structure, locking mechanism sets up on two crossbeam tops, hoists battery package assembly, when battery package assembly is hung on electric automobile, disperses the atress of battery package assembly.
Preferably, the locking mechanism includes:
the mounting frame is arranged above the cross beam and comprises a vertical plate and a horizontal plate which are arranged vertically to each other, the vertical plate and the horizontal plate extend along the length direction of the battery pack unit, and the horizontal plate is detachably connected to the top of the cross beam;
and at least one end of the lock shaft is connected with the vertical plate.
In this scheme, adopt above-mentioned structure, locking mechanism extends to the both ends of outer box along the length direction of battery package unit to make the atress of battery package assembly more even.
Preferably, the device further comprises a push rod mechanism, wherein the push rod mechanism comprises a push rod vertically arranged in the cross beam and a limiting structure, the upper end of the push rod penetrates through a horizontal plate and extends to one side, connected with a lock shaft, of the vertical plate, and the limiting structure is arranged on a part of the push rod above the horizontal plate;
When the ejector rod mechanism is in an initial state, the ejector rod is positioned at an initial position, and the limiting structure abuts against the horizontal plate from top to bottom;
when the ejector rod mechanism is in an unlocking state, the ejector rod is located at an unlocking position, and at the moment, the ejector rod is jacked up by external power exchange equipment until the upper end of the ejector rod abuts against a vehicle end locking mechanism on the electric vehicle and is unlocked.
In this scheme, adopt above-mentioned structure, through setting up ejector pin mechanism, can conveniently run through the battery package assembly from the bottom of battery package assembly and directly with the locking mechanism interaction at battery package assembly top, make things convenient for the battery package assembly of battery replacement equipment unblock or locking to accomplish the operation of changing the electricity.
Preferably, a limiting step is arranged in the circumferential direction of the ejector rod at the part positioned in the cross beam, a spring is sleeved on the ejector rod, and two ends of the spring are respectively propped against the cross beam and the limiting step.
In this scheme, adopt above-mentioned structure, can provide restoring force and make things convenient for its downward movement to reset for the ejector pin.
Preferably, the locking mechanism and part of the upper fixing piece are sequentially arranged at the top of the cross beam from top to bottom.
In this scheme, adopt above-mentioned structure for overall structure assembly is more reasonable, and locking mechanism is located the convenient dismouting of topside.
Preferably, the outer box body and the cross beam are formed by sectional materials and are provided with a plurality of hollow cavities.
In this scheme, adopt above-mentioned structure for the whole weight of frame body is lighter.
Preferably, the cross beam is provided with a vertically through hole, and the ejector rod and the spring are both positioned in the through hole.
In this scheme, adopt above-mentioned structure, the ejector pin is integrated in the crossbeam is inside, can also more convenient counterpoint with locking mechanism under the space circumstances in the standing groove that does not occupy.
Preferably, the frame body further comprises an upper cover, and the upper cover is detachably connected to the opening of the placement groove through the upper fixing piece.
In this scheme, adopt above-mentioned structure, seal the standing groove through the upper cover, protect inside battery package subassembly.
Preferably, the battery pack assembly further comprises a manual maintenance switch and a battery end electric connector which are arranged on the frame body, wherein the battery end electric connector and the manual maintenance switch are partially extended into the placing groove and are communicated through wires, and the battery end electric connector is electrically communicated with all the battery pack units through the manual maintenance switch;
the wire is positioned in the placement groove.
In this scheme, adopt above-mentioned structure, manual maintenance switch protection maintains battery package assembly or installs its electric vehicle's technical personnel safety or the emergency of meeting an emergency under high pressure environment, can the connection of quick separation high-voltage circuit, makes maintenance etc. work be in a safer state.
Preferably, the manual maintenance switches are two and are respectively positioned at two sides of the battery end electric connector.
In this scheme, adopt above-mentioned structure, reduce the space that single manual maintenance switch took in the standing groove to leave more space for the battery package subassembly.
Preferably, the battery pack assembly further comprises a water inlet joint and a water outlet joint which are arranged on the frame body, all waterways of the battery pack units are mutually communicated to form a first waterway, the water inlet joint is communicated with a water inlet of the first waterway, and the water outlet joint is communicated with a water outlet of the first waterway.
In this scheme, adopt above-mentioned structure, water inlet joint and water outlet joint external water source cool down in good time battery package unit.
Preferably, the water inlet joint and the water outlet joint are connected to the first waterway through pipelines, and the pipelines are positioned in the placing groove.
In this scheme, adopt above-mentioned structure, switch on water to the standing groove inside through the pipeline, conveniently cool off the battery package unit in the standing groove.
The invention has the positive progress effects that:
according to the battery pack assembly disclosed by the invention, the battery pack assembly comprises a plurality of battery pack components, and each battery pack component only needs to fix the position of the battery pack component in a downward pressing mode through the upper fixing piece, so that the battery pack assembly is more convenient to assemble, high in efficiency and convenient to detach, and the cost is relatively reduced.
Drawings
Fig. 1 is a schematic structural view of a battery pack assembly according to embodiment 1 of the present invention.
Fig. 2 is a schematic structural diagram of a frame body according to embodiment 1 of the present invention.
Fig. 3 is a schematic structural view of the battery pack assembly according to embodiment 1 of the present invention in an installed state.
Fig. 4 is a schematic view showing the internal structure of a battery pack assembly according to embodiment 1 of the present invention.
Fig. 5 is a schematic structural view of a lower fixing member according to embodiment 1 of the present invention.
Fig. 6 is a schematic structural view of a lower fixing member in embodiment 1 of the present invention.
Fig. 7 is a schematic structural view of an upper fixing member in embodiment 1 of the present invention.
Fig. 8 is a schematic structural view of an upper fixture according to embodiment 1 of the present invention.
Fig. 9 is a schematic structural view of a first guide surface in embodiment 1 of the present invention.
Fig. 10 is a schematic structural view of the ejector pin mechanism and the locking mechanism according to embodiment 1 of the present invention.
Fig. 11 is a schematic view showing the internal structure of the ejector mechanism of embodiment 1 of the present invention.
Fig. 12 is a schematic structural view of a battery pack assembly according to embodiment 2 of the present invention.
Reference numerals illustrate:
Case end connecting flange 311
Upper bracket connecting flange 420
Lower bracket connecting flange 520
Reinforcing pad 541
Limiting step 720
Detailed Description
The invention is further illustrated by means of the following examples, which are not intended to limit the scope of the invention.
Example 1
As shown in fig. 1 to 4, the present embodiment provides a battery pack assembly, which includes a frame body 100 and an upper fixture 400, wherein a placement groove 130 in which a battery pack assembly 300 is placed is provided in the frame body 100. The upper fixture 400 is disposed on the frame body 100 and the upper fixture 400 compresses and fixes the corresponding battery pack assembly 300 in the placement groove 130.
In this embodiment, as shown in fig. 2 and 3, the frame body 100 includes an outer case 110 and a beam 120, and the outer case 110 and the beam 120 are made of aluminum profiles, so that the overall weight of the outer case 110 is lighter.
The outer case 110 has a box-shaped structure with an upper end opening, two cross beams 120 are arranged in the outer case, the cross beams 120 extend to the inner walls of two ends of the outer case 110, and three placing grooves 130 are formed in the outer case 110.
In this embodiment, the upper fixing member 400 may be fixed to the outer case 110 and the cross member 120.
The outer case 110 protects the battery pack assembly, and the cross beam 120 can be used to reinforce the overall strength of the battery pack, and also can be used to separate the outer case 110 to form a plurality of placement grooves 130 for placing a plurality of battery pack assemblies 300.
The battery pack assembly in this embodiment can include one or more battery pack assemblies 300, and the upper fixing member 400 is disposed above the battery pack assemblies 300 and detachably connected to the frame body 100, and the bottom surface of a part of the structure can apply opposite forces to the battery pack assemblies 300 from the upper and lower sides together with the bottom surface of the placement groove 130 and fix them.
Each battery pack assembly 300 only needs to fix the position of the battery pack assembly 300 in a downward pressing mode through the upper fixing piece 400, so that the battery pack assembly is more convenient to assemble, high in efficiency and relatively low in cost.
As shown in fig. 3, the battery pack assembly 300 includes a battery pack unit 310. In this embodiment, the battery pack assembly 300 includes two vertically stacked battery pack units 310, and the number of the battery pack units 310 in the battery pack assembly 300 is adjusted to satisfy different usage scenarios.
The battery pack unit 310 in this embodiment is a standardized battery cell assembly integrated into one body. The battery pack assembly 300 may include a plurality of battery pack units 310 with the same specification, and a plurality of battery pack units 310 are stacked in the vertical direction and then integrally placed in the placement groove 130, and then integrally fixed by the upper fixing member 400.
In other embodiments, it may be adjusted to other numbers, such as one or three, etc., as desired.
As shown in fig. 6, the upper fixture 400 includes an upper bracket body 410 connected to the frame body 100 and an upper bracket connection flange 420 disposed on the upper bracket body 410 and extending toward the sidewall of the battery pack unit 310, and the sidewall of the battery pack unit 310 is correspondingly provided with a case end connection flange 311 extending toward the upper fixture 400, and the upper fixture 400 and the battery pack unit 310 are connected to the case end connection flange 311 through the upper bracket connection flange 420, i.e., the upper bracket connection flange 420 and the case end connection flange 311 extend toward a direction approaching each other.
The upper bracket body 410 of the upper fixing member 400 is detachably connected to the upper end of the outer sidewall of the frame body 100, and the upper bracket connection flange 420 is disposed on the upper bracket body 410 and is correspondingly matched with the case end connection flange 311 protruding from the side surface of the battery pack unit 310. When fixed, the upper bracket connecting flange 420 is positioned above the box end connecting flange 311 of the uppermost battery pack unit 310 in the battery pack assembly 300, and the box end connecting flange 311 is attached to and pressed down, so that the battery pack unit 310 is pressed down. The connection position is provided at the side of the battery pack unit 310, and it is also possible to prevent the battery cells inside the battery pack unit 310 from being crushed by being directly pressed against the top surface of the battery pack unit 310.
The battery pack assembly is connected with the upper bracket connecting flange 420 through the box end connecting flange 311, so that the situation that the local structural strength of the battery pack unit 310 is insufficient due to the fact that the upper bracket connecting flange 420 is directly connected with the battery pack unit 310 is avoided, and the battery pack unit is easy to damage.
As shown in fig. 4, in this embodiment, the box end connection flange 311 is horizontally disposed on the side wall of the battery pack unit 310, that is, around the battery pack unit 310, and correspondingly, the upper bracket connection flange 420 is also disposed around the placement groove 130, so as to contact with the battery pack unit 310 on the whole circumferential surface, so that the stress is most uniform and the structure is most firm.
In other embodiments, the case end connection flange 311 may be disposed only at a side wall of the battery pack unit 310 in the length direction and the case end connection flange 311 horizontally extends along the length direction of the battery pack unit 310. This requires only a flange on the longer side of the battery pack unit 310, and the upper bracket connection flange 420 is also required to be disposed on both sides, so that the structural arrangement of the entire battery pack assembly is simpler.
The case end connection flange 311 may reinforce a sidewall of the battery pack unit 310 in the length direction, and reinforce the structural strength of the battery pack unit 310 in the length direction. Further, the local structural strength is improved by circumferentially arranging the case-end connection flange 311 on the side wall of the entire battery pack unit 310, and the reinforcing effect thereof is better.
As shown in fig. 3, 4, 6 and 7, the upper fixing member 400 is disposed at the opening of the placement groove 130, and the upper fixing member 400 is detachably connected to the frame body 100.
In this embodiment, as shown in fig. 3 and 4, the upper fixture 400 is disposed at the opening of each of the placement grooves 130, and presses the battery pack assembly 300 in each of the placement grooves 130.
In this embodiment, the upper fixture 400 is a unitary frame integrally disposed on the upper portion of the frame body 100, and is capable of compressing the battery pack assembly 300 at the opening of each of the placement grooves 130.
The fixation of the battery pack assembly 300 is simplified by pressing the battery pack assembly 300 down from above by the same upper fixing member 400. The opening of the placement groove 130 is an opening at the upper end of the frame body 100, through which the battery pack assembly 300 is placed into the interior of the placement groove 130. The upper fixing member 400 is disposed at the opening of the placement groove 130, and the upper and lower ends of the battery pack assembly 300 are respectively restrained by the upper fixing member 400 and the bottom of the placement groove 130.
In other embodiments, separate upper fixtures 400 may be provided at the opening of each placement groove 130 separately.
In this embodiment, the lower end surface of the upper bracket connection flange 420 abuts against the upper surface of the tank end connection flange 311, and the upper bracket connection flange 420 is in surface contact with the tank end connection flange 311.
As shown in fig. 3, the battery pack unit 310 having the greatest distance from the bottom of the placement groove 130 among the three battery pack assemblies 300 is pressed and fixed in the placement groove 130 by the same upper fixing member 400.
In this embodiment, the battery pack assembly 300 includes two vertically stacked battery pack units 310, the battery pack unit 310 located at the upper side is directly limited and pressed by the upper fixing member 400, and finally force is transmitted to the battery pack unit 310 located below the battery pack unit to press the battery pack unit, and the battery pack unit 310 located below is limited by the bottom surface of the placement groove 130 and plays a role of supporting the battery pack unit 310 thereon.
The two battery pack units 310 of the battery pack assembly 300 are positioned in the horizontal direction by the concave-convex fit. The stacking direction of the battery pack unit 310 is the same as the compressing direction of the upper fixing member 400, so that the upper fixing member 400 can more conveniently compress and limit the whole battery pack assembly 300, and simultaneously, the battery pack unit 310 positioned at the upper side can further compress the battery pack unit 310 positioned at the lower side through the gravity thereof.
As shown in fig. 4, 5 and 6, the battery pack assembly further includes a lower fixing member 500 coupled to the frame body 100, and at least one other battery pack unit 310 of the battery pack assembly 300 except for the battery pack unit 310 having the greatest distance from the bottom of the placement groove 130 is coupled to the placement groove 130 through the lower fixing member 500, wherein the lower fixing member 500 is used for compressing the remaining battery pack units 310 that the upper fixing member 400 cannot compress.
In this embodiment, since the battery pack assembly 300 includes only two stacked battery pack units, the battery pack units located below are connected to the placement grooves 130 by the lower fixing members 500, and accordingly, only one lower fixing member 500 is disposed in each placement groove 130.
In other embodiments, the lower fixing member 500 may be provided for each of the battery pack units 310 except for the uppermost battery pack unit 310 or a part of the battery pack units 310 may be provided with the lower fixing member 500 according to the number of the battery pack units 310.
By arranging the lower fixing member 500 to individually press and fix the lower battery pack unit 310, the stability of the battery pack assembly 300 installed in the placement groove can be further improved.
As shown in fig. 4 and 6, the lower fixing member 500 includes a lower bracket body 510 detachably connected to the frame body 100, and a lower bracket connection flange 520 disposed on the lower bracket body 510 and extending toward the sidewall of the battery pack unit 310, and the sidewall of the battery pack unit 310 is correspondingly provided with a case end connection flange 311 extending toward the direction in which the upper fixing member 400 is located. The lower bracket connection flange 520 is connected with the case end connection flange 311 of the battery pack unit 310.
The structure of the lower fixing member 500 in this embodiment is substantially identical to that of the upper fixing member 400, and the lower bracket body 510 and the lower bracket connecting flange 520, which have the same structure and function, are not described herein.
By providing the lower fixing member 500, the battery pack unit 310 is connected and fixed with the frame unit through the corresponding lower fixing member 500, so that the connection of the entire battery pack assembly 300 is more stable.
As shown in fig. 5 and 6, the lower bracket body 510 is connected to the outer case 110 through a plurality of lower bolt assemblies 540, and the plurality of lower bolt assemblies 540 are embedded in the outer case 110 in a horizontal direction and are spaced apart along the length direction of the battery pack unit 310.
In this embodiment, the lower bracket body 510 is fixed on the inner side of the side wall of the outer case 110 by the lower bolt assembly 540, and the lower fixing member 500 is connected with the outer case 110 at multiple points, so that the connection between the two is more firm.
As shown in fig. 1, 5, 6, 7 and 8, the battery pack assembly further includes a reinforcing spacer 541 having a U-shaped cross-section. The lower bolt assembly 540 includes a threaded engaged bolt and nut. The outer case 110 includes a cavity extending in the length direction of the battery pack unit 310, and the cavity extends to both ends of the outer case 110 and communicates with the external environment of the outer case 110. The reinforcing gasket 541 is horizontally embedded into the cavity through the opening 111 where the cavity is connected with the external environment, and a plurality of bolts sequentially penetrate through the lower bracket body 510 and then extend into the cavity and are fastened and connected with the reinforcing gasket 541 through nuts.
In this embodiment, the reinforcing washer increases the structural strength of the connection point with the outer case when the bolts are connected, and disperses the stress received at the connection point. Simultaneously, the frame unit made of the aluminum profile with lower damage strength at the bolt connection part can be avoided. Meanwhile, the reinforcing spacer 541 is convenient to take, place and replace, and is convenient to maintain the entire battery pack assembly 300.
As shown in fig. 6, the extending direction of the reinforcing spacer 541 is parallel to the length direction of the battery pack unit 310. The reinforcing gasket reinforces the local strength at the outer case along the length direction of the battery pack unit.
In this embodiment, the upper fixing member is detachably connected to the top of the outer box body and the beam through the upper bolt assembly 440, and in order to increase the structural strength of the connection between the upper fixing member and the frame body at the bolt assembly, a reinforcing spacer is also disposed in the cavity of the outer box body and the beam at the position corresponding to the upper bolt assembly 440.
As shown in fig. 5, the lower bracket body 510 is further connected to the side wall of the cross beam 120 through a plurality of lower bolt assemblies 540, and the plurality of lower bolt assemblies 540 are embedded into the cross beam 120 and are arranged at intervals along the length direction of the battery pack unit 310, so that the multi-point connection between the lower fixing member 500 and the cross beam 120 is realized, and the connection of the lower fixing member 500 is further reinforced.
In other embodiments, to save parts, the thickness of the cross beam 120 is reduced, so that the inner volume of the accommodating groove 130 is larger, and the lower bracket bodies 510 positioned at both sides of the cross beam 120 are connected to the cross beam 120 through the same set of bolt assemblies.
In this embodiment, the cross beam 120 separates two placement grooves 130, the lower bracket bodies 510 of the lower fixing members 500 disposed on the cross beam 120 by the placement grooves 130 on both sides are connected by a set of lower bolt assemblies 540 penetrating through the cross beam 120, and the two lower bracket bodies 510 are respectively fixed on both ends of the lower bolt assemblies 540.
As shown in fig. 9, the connection of the side wall and the bottom surface of the battery pack unit 310 is provided with a first guide surface 112 inclined with respect to the horizontal plane, the first guide surface being a plane and the first guide surface having an angle of 15 ° with respect to the vertical plane.
The lower fixing member 500 further includes a lower guide portion 530 connected to the lower bracket body 510, the lower guide portion 530 is located above the lower bracket connecting flange 520, and a second guide surface matched with the first guide surface 112 is disposed on the lower guide portion 530, and the shape of the first guide surface is consistent with the shape of the second guide surface and the inclination angle of the vertical surface.
By the cooperation of the first guide surface 112 and the second guide surface, the lower fixture 500 is positioned and guided in the horizontal direction on the battery pack unit 310 located above.
In other specific embodiments, the inclination angle between the first guiding surface and the vertical surface may be any angle between 5 ° and 20 °, for example, 5 °, 10 °, 20 ° or the like, which is selected according to actual requirements, and will not be described herein.
As shown in fig. 8 and 10, the battery pack assembly includes a locking mechanism 600 provided on the cross member 120, and the locking mechanism 600 is used to mount the battery pack assembly on an electric vehicle.
In this embodiment, since the three placement grooves 130 are divided by the two cross beams 120, the locking mechanism 600 is disposed at the top ends of the two cross beams 120, so that the hoisting is balanced, and when the battery pack assembly is hung on the electric automobile, the stress of the battery pack assembly is dispersed.
The lifting device comprises a lock shaft 630, wherein the lock shaft 630 is matched with a lock connection structure used for being connected with a vehicle end, so that lifting is realized.
As shown in fig. 10, the locking mechanism 600 and the partial upper fixing member 400 are sequentially disposed on the top of the cross beam 120 from top to bottom. Make overall structure assembly more reasonable, locking mechanism 600 is located the convenient dismouting of topside.
In this embodiment, the locking mechanism 600 and part of the upper fixing member 400 are integrally mounted on the beam 120, and the locking mechanism 600 is also fixed to the upper end of the beam 120 by the upper bolt assembly 440.
As shown in fig. 8 and 10, the locking mechanism 600 is in the prior art, specifically, the locking mechanism 600 includes a mounting bracket disposed above the beam 120 and a plurality of lock shafts 630 disposed at intervals, the mounting bracket includes vertical plates and horizontal plates 610 disposed perpendicular to each other, the vertical plates are two, the horizontal plates are one, the two vertical plates are parallel to each other and are perpendicular to the horizontal plates, the vertical plates and the horizontal plates 610 extend along the length direction of the battery pack unit 310, and the horizontal plates 610 are attached to the upper fixing member and are vertically detachably connected to the top of the beam 120 through upper bolt assemblies.
The lock shaft 630 is horizontally arranged, two ends of the lock shaft are respectively connected with the vertical plates on the corresponding sides, when the battery pack assembly is hung on an electric automobile, acting force received by the lock shaft can be respectively transmitted to the vertical plates on the two sides, and then the acting force is dispersed to the whole battery pack assembly through the horizontal plates.
In other embodiments, the lock shaft 630 may be connected to the vertical plate at only one end, which is not described herein.
As shown in fig. 10, the battery pack assembly further includes a push rod mechanism, which includes a push rod 700 vertically disposed in the cross beam 120 and a limit structure, wherein the upper end of the push rod passes through the horizontal plate 610 and extends to one side of the vertical plate 620 where the lock shaft 630 is connected, in this embodiment, the upper end of the push rod extends between the two vertical plates 620, and the limit structure is disposed on a part of the push rod above the horizontal plate 610.
When the ejector rod mechanism is in the initial state, the ejector rod 700 is located at the initial position, and the limiting structure abuts against the horizontal plate 610 from top to bottom.
When the ejector rod mechanism is in an unlocking state, the ejector rod 700 is located at an unlocking position, and at the moment, the ejector rod 700 is jacked up by external power exchange equipment until the upper end of the ejector rod 700 abuts against the vehicle end locking mechanism 600 on the electric vehicle and is unlocked.
Through setting up ejector pin mechanism, can conveniently run through the battery package assembly from the bottom of battery package assembly and directly with the locking mechanism interaction at battery package assembly top, make things convenient for battery replacement equipment unblock or locking battery package assembly completion to trade the electric operation.
As shown in fig. 10 and 11, a limiting step 720 is arranged in the circumferential direction of a part of the ejector rod 700 positioned in the cross beam 120, a spring 710 is sleeved on the ejector rod 700, and two ends of the spring 710 are respectively abutted against the cross beam 120 and the limiting step 720.
Specifically, the top end of the beam 120 is vertically provided with a sleeve 730, the top rod 700 vertically penetrates through the sleeve 730, the lower end of the spring 710 abuts against the limiting step 720, and the upper end of the spring 710 abuts against the lower end of the sleeve 730. In order to avoid excessive resetting of the ejector rod 700 under the action of the elastic restoring force of the spring 710, the part of the ejector rod 700 extending above the horizontal plate is clamped with the clamp spring 740, so that the ejector rod 700 moves downwards under the action of the spring 710 until the clamp spring 740 abuts against the upper end of the sleeve 730, and at this time, the ejector rod 700 is in a state of restoring to the proper position.
As shown in fig. 10, the cross beam 120 is provided with a vertically penetrating through hole, and the ejector rod 700 and the spring 710 are both positioned in the through hole. The ejector 700 is integrated inside the cross beam 120, and can be more conveniently aligned with the locking mechanism 600 under the condition of not occupying the space in the battery pack.
As shown in fig. 1, the frame body 100 further includes an upper cover 200, and the upper cover 200 is detachably connected to the opening of the placement groove 130 by an upper fixing member 400. The placement groove 130 is closed by the upper cover 200 to protect the internal battery pack assembly.
As shown in fig. 1, the battery pack assembly further includes a manual maintenance switch (not shown) provided on the frame body 100 and a battery-side electrical connector (not shown), both of which extend partially into the placement groove 130 and are in communication with each other through wires, and which are in electrical communication with all of the battery pack units 310 through the manual maintenance switch. The wire is positioned in the placement groove 130.
The manual maintenance switch protects the safety of technicians who repair the battery pack assembly or install electric vehicle of the battery pack assembly or the emergency of meeting an emergency under high pressure environment, can the connection of quick disconnect high-voltage circuit, makes maintenance etc. work be in a safer state.
As shown in fig. 1, the manual maintenance switch has two and is respectively located at two sides of the battery terminal electric connector. The space occupied by a single manual maintenance switch within the placement slot 130 is reduced, thereby allowing more space for the battery pack assembly 300.
The battery pack assembly further comprises a water inlet joint and a water outlet joint which are arranged on the frame body 100, the waterways of all the battery pack units 310 are mutually communicated to form a first waterway, the water inlet joint is communicated with a water inlet of the first waterway, and the water outlet joint is communicated with a water outlet of the first waterway.
The water connector and the water outlet connector are externally connected with a water source to timely cool the battery pack unit 310.
The water inlet joint and the water outlet joint are connected to the first waterway through pipelines, and the pipelines are positioned in the placing groove 130.
The water is conducted to the inside of the placing groove 130 through the pipeline, so that the battery pack unit 310 in the placing groove 130 is conveniently cooled.
Example 2
Embodiment 2 discloses another battery pack assembly, and the structure of the battery pack assembly of embodiment 2 is basically the same as that of embodiment 1, except that the upper bracket connection flange 420 of the upper fixture 400 is connected with the case end connection flange 311 and the connection manner of the lower bracket connection flange 520 with the case end connection flange 311 is different.
As shown in fig. 12, the box end connection flange 311 is formed with a threaded hole by embedding an embedded nut, and the upper bracket connection flange 420 of the upper fixing member 400 is positioned below the box end connection flange 311 and connected with the box end connection flange 311 through a threaded connection member. In other embodiments, the tank end connection flange 311 may be located above the upper bracket connection flange 420, which is not described herein.
As shown in fig. 12, the tank end connecting flange 311 is located above the lower bracket connecting flange 520, and nuts are embedded in the tank end connecting flange 311 to form threaded holes, and the lower bracket connecting flange 520 is connected with the tank end connecting flange 311 through threaded connectors.
In the present embodiment, the insert nuts are provided in the inserts 421, 521, and the inserts 421, 521 are provided in advance inside the upper bracket connection flange 420 and the lower bracket connection flange 520.
On the premise of compressing and fixing, the two are further fixed through bolts, so that the fixation is firmer.
The threaded connection is realized in a mode of embedding the nuts, so that the strength requirement on the material of the battery pack unit 310 can be reduced, nonmetallic composite materials can be applied, and damage to parts such as direct connection bolts can be avoided.
As shown in fig. 11, the lower fixture 500 is formed by extending the frame body toward the inside of the placement groove 130. The lower fixing member 500 in this embodiment is not detachable from the frame body 100, so that the step of connecting the lower fixing member 500 with the frame body 100 is omitted.
While specific embodiments of the invention have been described above, it will be appreciated by those skilled in the art that this is by way of example only, and the scope of the invention is defined by the appended claims. Various changes and modifications to these embodiments may be made by those skilled in the art without departing from the principles and spirit of the invention, but such changes and modifications fall within the scope of the invention.
Claims (34)
1. The battery pack assembly is characterized by comprising a frame body and an upper fixing piece, wherein a placing groove for placing a battery pack assembly is formed in the frame body;
the upper fixing piece is arranged on the frame body and is used for fastening the corresponding battery pack assembly in the placing groove in a pressing mode.
2. The battery pack assembly of claim 1, wherein the battery pack assembly comprises a battery pack unit.
3. The battery pack assembly according to claim 2, wherein the upper fixing member comprises an upper bracket body connected to the frame body and an upper bracket connecting flange arranged on the upper bracket body and extending towards the side wall direction of the battery pack unit, the side wall of the battery pack unit is correspondingly provided with a box end connecting flange extending towards the upper fixing member direction, and the upper fixing member and the battery pack unit are connected through the upper bracket connecting flange and the box end connecting flange.
4. The battery pack assembly of claim 3, wherein the case end connection flange is disposed at a side wall of the battery pack unit in a length direction and the case end connection flange extends horizontally along the length direction of the battery pack unit; or (b)
The box end connecting flange is horizontally arranged on the side wall of the battery pack unit in a surrounding mode.
5. The battery pack assembly of claim 4, wherein the box end connection flange is formed with a threaded hole by inserting an insert nut therein, and the upper bracket connection flange of the upper fixing member is connected with the box end connection flange by a threaded connection member.
6. The battery pack assembly of claim 4 wherein the lower end surface of the upper bracket attachment flange abuts against the upper surface of the box end attachment flange and the upper bracket attachment flange is in surface contact with the box end attachment flange.
7. The battery pack assembly of claim 1, wherein the upper fixture is disposed at an opening of the placement slot, the upper fixture being detachably connected to the frame body.
8. The battery pack assembly of claim 2, wherein the battery pack assembly comprises at least two battery pack units vertically stacked; the battery pack unit with the largest distance from the bottom of the placing groove in the battery pack assembly is fastened in the placing groove through the upper fixing piece in a pressing mode.
9. The battery pack assembly of claim 8, wherein the frame body comprises an outer case and a cross member, the cross member being disposed in the outer case and dividing the outer case into a plurality of the placement grooves.
10. The battery pack assembly of claim 9, wherein said upper fixture is disposed at an opening of each of said placement slots and compresses said battery pack assembly within each of said placement slots.
11. The battery pack assembly of claim 9, further comprising a lower fixture attached to the frame body, wherein at least one other battery pack unit of the battery pack assembly except the battery pack unit having the greatest distance from the bottom of the placement groove is attached to the placement groove by the lower fixture.
12. The battery pack assembly according to claim 11, wherein the lower fixing member comprises a lower bracket body detachably connected to the frame body and a lower bracket connecting flange arranged on the lower bracket body and extending towards the side wall of the battery pack unit, and the side wall of the battery pack unit is correspondingly provided with a box end connecting flange extending towards the direction in which the upper fixing member is arranged;
The lower bracket connecting flange is connected with the box end connecting flange of the battery pack unit.
13. The battery pack assembly of claim 12, wherein the lower bracket body is connected to the outer case by a plurality of bolt assemblies embedded in the outer case and arranged at intervals along the length direction of the battery pack unit.
14. The battery pack assembly of claim 13, further comprising a reinforcing gasket;
the bolt assembly comprises a bolt and a nut which are in threaded engagement;
the outer box comprises a cavity extending along the length direction of the battery pack unit, the reinforcing gasket is embedded into the cavity, and a plurality of bolts sequentially penetrate through the lower bracket body and then extend into the cavity to be connected with the reinforcing gasket through nuts in a fastening mode.
15. The battery pack assembly of claim 14, wherein the reinforcement spacer extends in a direction parallel to the length of the battery pack unit.
16. The battery pack assembly of claim 15, wherein the cavity extends to both ends of the outer case and communicates with an external environment of the outer case.
17. The battery pack assembly of claim 12, wherein the lower bracket body is further connected to the cross beam by a plurality of bolt assemblies embedded in the cross beam and spaced apart along the length of the battery pack unit.
18. The battery pack assembly of claim 17, wherein the lower bracket bodies on opposite sides of the cross beam are connected to the cross beam by the same set of bolt assemblies.
19. The battery pack assembly of claim 12, wherein the lower fixture is an extension of the frame body toward the interior of the placement slot.
20. The battery pack assembly of claim 19, wherein the box end connection flange is positioned above the lower bracket connection flange, and wherein a nut is embedded in the box end connection flange to form a threaded hole, and wherein the lower bracket connection flange is connected to the box end connection flange via a threaded connection.
21. The battery pack assembly of claim 12, wherein the junction of the side wall and the bottom surface of the battery pack unit is provided with a first guide surface inclined with respect to a horizontal plane;
the lower fixing piece further comprises a guide part connected to the lower bracket body, the guide part is located above the lower bracket connecting flange, and a second guide surface matched with the first guide surface is arranged on the guide part.
22. The battery pack assembly of claim 21, wherein the first guide surface is planar and the first guide surface is angled from 5 ° to 20 ° from the vertical.
23. The battery pack assembly of claim 9, wherein the battery pack assembly includes a locking mechanism disposed on the cross beam for mounting the battery pack assembly on an electric vehicle.
24. The battery pack assembly of claim 23, wherein the locking mechanism comprises:
the mounting frame is arranged above the cross beam and comprises a vertical plate and a horizontal plate which are arranged vertically to each other, the vertical plate and the horizontal plate extend along the length direction of the battery pack unit, and the horizontal plate is detachably connected to the top of the cross beam;
and at least one end of the lock shaft is connected with the vertical plate.
25. The battery pack assembly of claim 24, further comprising a push rod mechanism comprising a push rod vertically arranged in the cross beam and a limiting structure, wherein the upper end of the push rod passes through a horizontal plate and extends to one side of the vertical plate, to which a lock shaft is connected, and the limiting structure is arranged on a part of the push rod above the horizontal plate;
When the ejector rod mechanism is in an initial state, the ejector rod is positioned at an initial position, and the limiting structure abuts against the horizontal plate from top to bottom;
when the ejector rod mechanism is in an unlocking state, the ejector rod is located at an unlocking position, and at the moment, the ejector rod is jacked up by external power exchange equipment until the upper end of the ejector rod abuts against a vehicle end locking mechanism on the electric vehicle and is unlocked.
26. The battery pack assembly of claim 25, wherein a limiting step is arranged on a part of the ejector rod located in the cross beam in the circumferential direction, a spring is sleeved on the ejector rod, and two ends of the spring are respectively abutted against the cross beam and the limiting step.
27. The battery pack assembly of claim 25, wherein the locking mechanism and a portion of the upper securing member are disposed on top of the cross member in sequence from top to bottom.
28. The battery pack assembly of claim 27 wherein the outer housing and cross member are formed of a profile and have a plurality of hollow cavities.
29. The battery pack assembly of claim 28, wherein the cross beam is provided with a vertically through hole, and the ejector rod and the spring are both positioned in the through hole.
30. The battery pack assembly of claim 1, wherein the frame body further comprises an upper cover detachably connected to the opening of the placement groove by the upper fixing member.
31. The battery pack assembly of claim 2 further comprising a manual maintenance switch disposed on the frame body and a battery-side electrical connector, both of which extend partially into the placement slot and are in electrical communication with the electrical wires, the battery-side electrical connector being in electrical communication with all of the battery pack units through the manual maintenance switch;
the wire is positioned in the placement groove.
32. The battery pack assembly of claim 31 wherein the manual maintenance switch is two and located on each side of the battery side electrical connector.
33. The battery pack assembly of claim 2, further comprising a water inlet connector and a water outlet connector disposed on the frame body, wherein all of the water paths of the battery pack units are mutually communicated to form a first water path, the water inlet connector is communicated with a water inlet of the first water path, and the water outlet connector is communicated with a water outlet of the first water path.
34. The battery pack assembly of claim 33, wherein the water inlet connector and the water outlet connector are connected to the first waterway by a pipeline, and the pipeline is positioned in the placement groove.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211216134.8A CN116417741A (en) | 2022-09-30 | 2022-09-30 | Battery pack assembly |
| PCT/CN2023/084392 WO2024066258A1 (en) | 2022-09-30 | 2023-03-28 | Battery pack assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211216134.8A CN116417741A (en) | 2022-09-30 | 2022-09-30 | Battery pack assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116417741A true CN116417741A (en) | 2023-07-11 |
Family
ID=87058666
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211216134.8A Pending CN116417741A (en) | 2022-09-30 | 2022-09-30 | Battery pack assembly |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN116417741A (en) |
| WO (1) | WO2024066258A1 (en) |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7194094B2 (en) * | 2019-09-10 | 2022-12-21 | 株式会社神戸製鋼所 | Battery case for electric vehicle |
| CN114571974B (en) * | 2020-11-30 | 2024-02-06 | 本田技研工业株式会社 | Battery support structure |
| CN115284860A (en) * | 2021-11-30 | 2022-11-04 | 奥动新能源汽车科技有限公司 | Bottom articulates formula battery package and electric automobile |
| CN216969317U (en) * | 2021-12-06 | 2022-07-15 | 北京车和家汽车科技有限公司 | Mounting structure, battery package and vehicle in middle of battery package |
-
2022
- 2022-09-30 CN CN202211216134.8A patent/CN116417741A/en active Pending
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2023
- 2023-03-28 WO PCT/CN2023/084392 patent/WO2024066258A1/en unknown
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|---|---|
| WO2024066258A1 (en) | 2024-04-04 |
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