CN116533781A - Connector assembly and electric vehicle - Google Patents

Connector assembly and electric vehicle Download PDF

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Publication number
CN116533781A
CN116533781A CN202211741132.0A CN202211741132A CN116533781A CN 116533781 A CN116533781 A CN 116533781A CN 202211741132 A CN202211741132 A CN 202211741132A CN 116533781 A CN116533781 A CN 116533781A
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CN
China
Prior art keywords
connector
vehicle
electric
battery pack
connector assembly
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202211741132.0A
Other languages
Chinese (zh)
Inventor
张建平
于新瑞
褚佳玮
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Aulton New Energy Automotive Technology Co Ltd
Original Assignee
Aulton New Energy Automotive Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Aulton New Energy Automotive Technology Co Ltd filed Critical Aulton New Energy Automotive Technology Co Ltd
Priority to CN202211741132.0A priority Critical patent/CN116533781A/en
Publication of CN116533781A publication Critical patent/CN116533781A/en
Pending legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L50/00—Electric propulsion with power supplied within the vehicle
    • B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
    • B60L50/60—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries
    • B60L50/66—Arrangements of batteries
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K1/00—Arrangement or mounting of electrical propulsion units
    • B60K1/04—Arrangement or mounting of electrical propulsion units of the electric storage means for propulsion
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
    • B60L53/80—Exchanging energy storage elements, e.g. removable batteries
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
    • B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
    • B60L58/24—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries
    • B60L58/26—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries by cooling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K1/00—Arrangement or mounting of electrical propulsion units
    • B60K1/04—Arrangement or mounting of electrical propulsion units of the electric storage means for propulsion
    • B60K2001/0455—Removal or replacement of the energy storages
    • 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
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/70—Energy storage systems for electromobility, e.g. batteries

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  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Power Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)

Abstract

The invention relates to the field of electric vehicle power conversion, and particularly discloses a connector assembly and an electric vehicle. The connector assembly is installed in an electric vehicle and is used for electrically connecting a battery pack of the electric vehicle, and the connector assembly comprises: the mounting part, the vehicle end electric connector and the liquid cooling connector are arranged on the mounting part; wherein the vehicle-end electrical connector and the liquid-cooled connector are arranged in a height direction of the electric vehicle. The electric connector of the vehicle end and the liquid cooling connector arranged on the electric vehicle are arranged in the height direction of the electric vehicle, so that the coincidence of the center of the electric connecting part of the battery pack and the central axis of the battery pack can be ensured, the included angle between the electric connecting part of the battery pack and the electric connector of the vehicle end and between the liquid cooling connecting part of the battery pack and the liquid cooling connector of the vehicle end is prevented, the reliability of connection between the electric connecting part of the electric connector of the vehicle end and the battery pack and between the liquid cooling connector of the vehicle end and the liquid cooling connecting part of the battery pack is improved, and the arcing phenomenon is avoided.

Description

Connector assembly and electric vehicle
Technical Field
The invention relates to the field of electric vehicle power conversion, in particular to a connector assembly and an electric vehicle.
Background
At present, the emission of automobile exhaust is still an important factor of environmental pollution, and in order to treat automobile exhaust, natural automobiles, hydrogen fuel automobiles, solar automobiles and electric automobiles are developed to replace fuel oil automobiles. And the most promising application is electric automobiles. The existing electric automobile mainly comprises a direct charging type electric automobile and a quick-changing type electric automobile.
The direct charging type electric automobile has low charging efficiency due to the longer charging time, and the quick-change type electric automobile can be continuously used only by changing the battery at the power changing station, so that the charging efficiency is extremely high.
When the battery pack is connected, the vehicle end electric connector which is electrically connected with the battery pack is arranged at the bottom of the vehicle, and the battery pack with larger capacity is provided with a liquid cooling module due to higher heat dissipation requirements, the liquid cooling module is also required to be connected with the electric vehicle, so that the electric vehicle is required to be simultaneously provided with the vehicle end electric connector and the vehicle end liquid cooling connector which are connected with the battery pack, the battery pack is provided with the battery pack electric connection part and the battery pack liquid cooling connection part which are correspondingly connected with the vehicle end electric connector and the vehicle end liquid cooling connector, the vehicle end electric connector and the vehicle end liquid cooling connector are arranged side by side along the horizontal direction, and accordingly, the battery pack electric connection part and the battery pack liquid cooling connection part are also arranged side by side along the horizontal direction, the center of the battery pack electric connection part is deviated from the central axis of the battery pack, an included angle is formed between the battery pack electric connection part and the vehicle end electric connector, the electric connection between the battery pack and the vehicle body is unreliable, and an arc-pulling phenomenon occurs.
Disclosure of Invention
The invention aims to overcome the defect that an electric connector at a vehicle end and a liquid cooling connector are arranged side by side in the prior art, and provides a connector assembly and an electric vehicle.
The invention solves the technical problems by the following technical scheme:
a connector assembly mounted to an electric vehicle for electrically connecting a battery pack of the electric vehicle, the connector assembly comprising: the mounting part, the vehicle end electric connector and the liquid cooling connector are arranged on the mounting part;
wherein the vehicle-end electrical connector and the liquid-cooled connector are arranged in a height direction of the electric vehicle.
In this scheme, the car end electric connector and the liquid cooling connector that set up on electric vehicle are arranged in electric vehicle's the direction of height, like this, electric connection portion and liquid cooling connecting portion on the battery package that corresponds with car end electric connector and liquid cooling connector are also arranged in electric vehicle's the direction of height, can guarantee that battery package electric connection portion center and battery package's axis coincidence, prevent to produce the contained angle between battery package electric connection portion and car end electric connector, battery package liquid cooling connecting portion and the car end liquid cooling connector, improve the reliability of being connected between car end electric connector and battery package's electric connection portion, car end's liquid cooling connector and battery package's liquid cooling connecting portion, avoid appearing the arcing phenomenon.
Preferably, the liquid cooling connector is disposed below the vehicle-end electrical connector.
In this scheme, set up the liquid cooling interface in the below of electric interface, can avoid flowing in the liquid cooling interface liquid inflow electric interface that flows out, lead to electric interface short circuit.
Preferably, the vehicle-end electrical connector protrudes further toward the battery pack than the liquid-cooled connector.
In this scheme, set up like this, can avoid when installing or dismantling the battery package, the battery package rises or descends in-process, and its electric connection portion contacts the liquid cooling interface, leads to the battery package short circuit, produces the potential safety hazard.
Preferably, the mounting portion is connected to a body of the electric vehicle or a quick-change bracket mounted to the body and used for mounting the battery pack.
In the scheme, the electric connector is arranged on the vehicle body or the quick-change bracket, so that the battery pack can be conveniently and electrically connected.
Preferably, the mounting portion includes: a plurality of bridges and a mounting plate for mounting the vehicle-end electrical connector and the liquid-cooled connector;
the plurality of bridge members are connected to the mounting plate and are arranged in the height direction of the electric vehicle.
In this scheme, through set up a plurality of bridging pieces in the direction of height, can increase the mounting strength of mounting panel in the direction of height, avoid the mounting panel to warp in electric vehicle's fore-and-aft direction and lead to electric connection portion and the liquid cooling connecting portion of battery package can't align with electric interface and liquid cooling interface on the mounting panel.
Preferably, the bridge member includes a first plate and a second plate, which are perpendicular to each other, the first plate is attached to the mounting plate, and the second plate is attached to the body or the quick-change bracket.
In this scheme, adopt the platy bridging piece of L shape, can further strengthen the mounting panel in the ascending installation strength of altitude, avoid the mounting panel to warp in electric vehicle's fore-and-aft direction and lead to electric connection portion and the liquid cooling connecting portion of battery package can't align with electric interface and liquid cooling interface on the mounting panel.
Preferably, the vehicle-end electric connector is provided with a connecting end electrically connected with the battery pack, and the first plate is attached to one side, away from the connecting end, of the mounting plate.
In this aspect, the first plate member is connected to a surface opposite to a surface on which the vehicle-end electric connector and the liquid-cooled connector are provided, so that the installation of the vehicle-end electric connector and the liquid-cooled connector is not hindered.
Preferably, the bridge member is disposed above the vehicle-end electrical connector and the liquid-cooled connector.
In this scheme, the bridging piece set up in car end electric connector with the top of liquid cooling connector can not hinder the installation of car end electric connector and liquid cooling connector, installs the mounting panel with the mode of hanging simultaneously and can more effectively utilize electric vehicle's below space.
Preferably, the mounting plate includes a panel and extension plates extending outwardly from both sides of the panel, the extension plates extending to and being fixed to the body or the quick-change bracket;
wherein the panel is used for installing the vehicle-end electric connector.
In this scheme, the mounting panel still sets up the extension board that is fixed to the crossbeam from both sides, can further strengthen the mounting panel in the ascending installation strength of height, avoids the mounting panel to warp in electric vehicle's fore-and-aft direction and leads to electric connection portion and the liquid cooling connecting portion of battery package unable with electric interface and liquid cooling interface alignment on the mounting panel.
Preferably, the extension plate includes a bending portion and a fixing portion, the bending portion extends from a side edge of the panel toward a direction away from the panel, the fixing portion is connected to an end of the bending portion away from the panel and extends toward a direction away from the bending portion, and the fixing portion is fixed to the body or the quick-change bracket.
In this scheme, the kink is followed the side orientation of panel is kept away from the direction of battery package extends, can further strengthen the mounting panel in the ascending installation strength of altitude, avoids the mounting panel to warp the electric connection portion and the liquid cooling connecting portion that lead to the battery package can't align with electric interface and liquid cooling interface on the mounting panel in electric vehicle's fore-and-aft direction, and fixed part is used for being connected to automobile body or quick change support with the mounting panel, the installation of being convenient for.
Preferably, the two fixing portions extend in a direction away from each other.
In this scheme, two fixed parts extend towards the direction that keeps away from each other, increase the joint strength of mounting panel to make things convenient for the installation of mounting panel to be fixed.
An electric vehicle comprising a connector assembly as described above.
In this scheme, set up connector assembly on the electric vehicle, carry out electric connection and water connection with the battery package, can improve the reliability of being connected between battery package and the connector assembly, avoid appearing the arcing phenomenon.
Preferably, the electric vehicle includes two girders extending in a length direction of the electric vehicle and a cross beam connecting the two girders, and the connector assembly is mounted to the cross beam.
In this scheme, utilize electric vehicle's crossbeam direct mount connector assembly, need not to set up extra mounting structure, simple structure.
The invention has the positive progress effects that: the electric connection part and the liquid cooling connection part on the battery pack, which are correspondingly connected with the electric connection part and the liquid cooling connection part, are also arranged in the height direction of the electric vehicle, so that the coincidence of the center of the electric connection part of the battery pack and the central axis of the battery pack can be ensured, the included angle between the electric connection part of the battery pack and the electric connection part of the vehicle, between the liquid cooling connection part of the battery pack and the liquid cooling connection part of the vehicle is prevented, the reliability of connection between the electric connection part of the vehicle and the battery pack and the liquid cooling connection part of the vehicle end is improved, and the arc discharge phenomenon is avoided.
Drawings
Fig. 1 is a schematic perspective view of a girder portion of an electric vehicle according to a preferred embodiment of the present invention.
Fig. 2 is a schematic side view of a quick-change bracket according to a preferred embodiment of the present invention.
Fig. 3 is a schematic front view of a battery pack according to a preferred embodiment of the present invention.
Fig. 4 is a schematic perspective view of a connector assembly according to a preferred embodiment of the present invention, as seen from the rear.
Fig. 5 is a schematic perspective view of a connector assembly according to a preferred embodiment of the present invention, as seen from the front.
Fig. 6 is another perspective view of the connector assembly according to the preferred embodiment of the present invention, with the second fixing plate removed, as seen from the front.
Fig. 7 is a schematic view of a mounting structure of a connector assembly according to a preferred embodiment of the present invention.
Fig. 8 is a schematic view of another mounting structure of the connector assembly according to the preferred embodiment of the present invention.
Fig. 9 is a schematic front view of a connector assembly according to a preferred embodiment of the present invention.
Fig. 10 is a schematic rear view of a connector assembly according to a preferred embodiment of the present invention.
Fig. 11 is a schematic side view of a connector assembly according to a preferred embodiment of the present invention.
Fig. 12 is a schematic perspective view of a mounting plate according to a preferred embodiment of the present invention.
Fig. 13 is a schematic perspective view of a bridge according to a preferred embodiment of the present invention.
Reference numerals illustrate:
body 100
Girder 103
Cross beam 105
Quick change bracket 200
Bracket body 203
Battery pack 300
Electric connection portion 303
Liquid-cooled connecting portion 305
Connector assembly 400
Mounting portion 403
Bridge 405
First plate 407
Second plate 409
Mounting plate 411
Panel 413
Extension board 415
Bending portion 417
Fixing portion 419
Vehicle end electric connector 421
Connection end 423
Liquid cooled connector 425
Liquid cooling connection column 4251
First mounting port 501
Second mounting port 502
Mounting holes 504
Bottom flap 506
First fixing plate 510
First portion 511
Second portion 512
Second fixing plate 520
Third portion 523
Fourth portion 524
Liquid cooling connecting hole 525
Length direction L
Width direction W
Height direction H
Detailed Description
The invention will be further illustrated by way of example with reference to the accompanying drawings, without thereby limiting the scope of the invention to the examples.
The present embodiment provides an electric vehicle. The electric vehicle is a heavy or light truck with a battery change. The electric vehicle is cruising by replacing the battery pack in the battery replacement station, rather than charging. Of course, the invention is not limited thereto, and the electric vehicle may be a passenger car for carrying people or a car for home use, an off-road vehicle, or the like.
As shown in fig. 1 to 13, the electric vehicle includes: the electric vehicle comprises a vehicle body 100, a quick-change bracket 200 mounted on the vehicle body 100, a battery pack 300 mounted on the quick-change bracket 200, and a connector assembly 400 mounted on the vehicle body 100 and realizing connection of the battery pack 300 with a power system of the electric vehicle.
The vehicle body 100 includes two girders 103 and a cross beam 105, the two girders 103 being disposed in parallel and extending along a longitudinal direction L (front-rear direction) of the electric vehicle, both ends of the cross beam 105 being connected to inner sides of the two girders 103.
The cross beam 105 is an elongated member having a U-shaped cross section, and both ends thereof are connected to the inside of the girder 103 by two L-shaped plate members, respectively.
The quick-change bracket 200 is connected to the body 100. In the present embodiment, the quick-change bracket 200 is connected to the girders 103 of the body 100, and the quick-change bracket 200 includes two bracket bodies 203, and the two bracket bodies 203 are respectively connected to both sides of the girders 103. Alternatively, the quick-change bracket 200 may be attached to other fixable accessories at the bottom of the electric vehicle. Alternatively, quick change bracket 200 may be integrally formed and attached to the underside or middle of girder 103. Alternatively, the two bracket bodies 203 of the quick-change bracket 200 may be connected by a bracket connection assembly, and the bracket connection assembly is fixed above or below the two girders 103.
The battery pack 300 is mounted on the quick-change bracket 200, and may be disposed entirely within the quick-change bracket 200, partially within the quick-change bracket 200, or below the quick-change bracket 200. It should be understood by those skilled in the art that the "battery pack 300" herein refers to a generic term for forming various forms of batteries in a package shape, a box shape, a column shape, etc., rather than a single-finger package shape battery.
The front portion of the battery pack 300 is provided with an electric connection portion 303 and a liquid cooling connection portion 305, the electric connection portion 303 is used for outputting electric power, and the liquid cooling connection portion 305 is used for externally connecting a liquid cooling circulation system so as to cool the battery pack 300. In other embodiments, the electrical connection 303 and the liquid cooled connection 305 may also be provided on the rear or side as long as they are capable of interfacing with the connector assembly 400.
The connector assembly 400 is mounted to an electric vehicle, specifically, to the cross member 105 of the body 100, and is used for electrically and water-connecting the battery pack 300 of the electric vehicle, and the connector assembly 400 is directly mounted using the cross member 105 without providing an additional mounting structure, with a simple structure. In other embodiments, the connector assembly 400 may be mounted to other portions of the body 100 or to the quick-change bracket 200.
As shown in fig. 4-6, the connector assembly 400 includes: the mounting portion 403 includes a vehicle-end electrical connector 421 and a liquid-cooled connector 425 provided on the mounting portion 403.
The vehicle-end electrical connector 421 and the liquid-cooled connector 425 are aligned in the height direction H of the electric vehicle. The vehicle-end electrical connector 421 is configured to interface with the electrical connection portion 303 on the battery pack 300 to electrically connect the battery pack 300 to the power system of the electric vehicle, thereby providing electrical energy to the power system of the electric vehicle. The liquid-cooled connector 425 is used to connect with the liquid-cooled connection portion 305 on the battery pack 300, so that the battery pack 300 is connected to a cooling circulation system provided on the body 100 of the electric vehicle, the cooling circulation system being used to circulate a coolant, and if necessary, including a heat exchange mechanism, to perform a cooling or heating process on the coolant. The electric connector 421 and the liquid cooling connector 425 at the vehicle end are arranged in the height direction of the electric vehicle, and meanwhile, the electric connection part 303 and the liquid cooling connection part 305 of the battery pack 300 are correspondingly arranged in the height direction of the electric vehicle, so that the coincidence between the center of the electric connection part 303 of the battery pack 300 and the center axis of the battery pack 300 can be ensured, the included angles between the electric connection part 300 and the electric connector 421 at the vehicle end and between the liquid cooling connection part 305 and the liquid cooling connector 425 are prevented, the reliability of connection between the electric connector 421 at the vehicle end and the electric connection part 303 of the battery pack and between the liquid cooling connector 425 at the vehicle end and the liquid cooling connection part 305 of the battery pack is improved, and the arc discharge phenomenon is avoided. In addition, interference between the high-voltage wires extending in the horizontal direction on both sides of the electric connection portion 303 (width direction W) and the liquid-cooled connection portion 305 can be avoided.
The liquid-cooled connector 425 is disposed below the vehicle-end electrical connector 421. The liquid cooling interface is arranged below the electric interface, so that the phenomenon that the electric interface is short-circuited due to the fact that liquid flowing out of the liquid cooling interface flows into the electric interface can be avoided.
The vehicle-end electrical connector 421 protrudes farther toward the battery pack 300 than the liquid-cooled connector 425. By this arrangement, the battery pack 300 can be prevented from being short-circuited due to the fact that the electric connection portion 303 of the battery pack 300 contacts the liquid cooling interface during the ascending or descending process when the battery pack 300 is mounted or dismounted.
The mounting portion 403 is connected to the body 100 of the electric vehicle or the quick-change bracket 200. Providing an electrical connector and a liquid-cooled connector on the body 100 or the quick-change stand 200 can facilitate electrical connection and water connection of the battery pack 300. In the present embodiment, the mounting portion 403 is connected to the cross member 105 of the vehicle body 100.
As shown in fig. 7 to 8, the mounting portion 403 includes: a plurality of bridges 405 and a mounting plate 411, the mounting plate 411 being used to mount a car-end electrical connector 421 and a liquid-cooled connector 425.
The plurality of bridge members 405 are connected to the mounting plate 411 and are arranged in the height direction of the electric vehicle. By providing the plurality of bridging members 405 in the height direction, the mounting strength of the mounting plate 411 in the height direction can be increased, avoiding deformation of the mounting plate 411 in the front-rear direction of the electric vehicle from causing the electric connection portion 303 and the liquid-cooled connection portion 305 of the battery pack 300 to be misaligned with the electric interface and the liquid-cooled interface on the mounting plate 411.
The bridge 405 includes a first plate 407 and a second plate 409 perpendicular to each other, the first plate 407 is attached to the mounting plate 411, the second plate 409 is attached to the upper surface and/or the lower surface of the cross beam 105 of the body 100, referring to fig. 7 and 8, the number of the bridge 405 is two, the second plate 409 of the upper bridge 405 is attached to the upper surface of the cross beam 105, and the second plate 409 of the lower bridge 405 is attached to the lower surface of the cross beam 105. With the L-shaped plate-like bridge 405, the mounting strength of the mounting plate 411 in the height direction can be further enhanced, and the electric connection portion 303 and the liquid-cooled connection portion 305 of the battery pack are prevented from being misaligned with the electric interface and the liquid-cooled interface on the mounting plate 411 due to deformation of the mounting plate 411 in the front-rear direction of the electric vehicle. In other embodiments, the connector assembly 400 is mounted on the quick-change bracket 200, the first plate 407 is attached to the mounting plate 411, and the second plate 409 is attached to the upper surface and/or the lower surface of the quick-change bracket 200.
In other embodiments, the bridge 405 may also be a U-shaped member, or a straight plate-shaped member or the like, as long as it can connect the mounting plate 411 and the cross member 105 and form a support for the mounting plate 411 in the front-rear direction of the electric vehicle.
Referring to fig. 5, the vehicle-end electrical connector 421 has a connection end 423 electrically connected to the battery pack 300, and the first plate 407 is attached to a side of the mounting plate 411 away from the connection end 423. The first plate 407 is attached to a surface opposite to the surface on which the vehicle-side electrical connector 421 and the liquid-cooled connector 425 are provided so as not to interfere with the installation of the vehicle-side electrical connector 421 and the liquid-cooled connector 425.
The bridge 405 is disposed above the vehicle side electrical connector 421 and the liquid cooled connector 425. This does not interfere with the installation of the vehicle-end electrical connector 421 and the liquid-cooled connector 425, and the installation plate 411 is installed in a suspended manner, so that the space under the electric vehicle can be more effectively utilized.
Referring to fig. 5 and 12, the mounting plate 411 includes a panel 413 and extension panels 415 extending outwardly from both sides of the panel 413 and bottom flaps 506 extending outwardly from the underside of the panel 413. The extension plate 415 extends to the body 100 or the quick-change bracket 200 and is fixed to the body 100 or the quick-change bracket 200; wherein the faceplate 413 is used to mount the vehicle end electrical connector 421 and the liquid cooled connector 425.
As shown in fig. 5 to 8, the panel 413 is provided with a first mounting port 501 and a second mounting port 502, wherein the first mounting port 501 is located above and is used for insertion mounting of the vehicle-side electrical connector 421, and the second mounting port 502 is located below and is used for insertion mounting of the liquid-cooling connector 425. Referring to fig. 6, both the vehicle-end electrical connector 421 and the liquid-cooled connector 425 are mounted in the form of an insert and protrude with respect to the front and rear surfaces of the panel 413. In other embodiments, the vehicle end electrical connector 421 and the liquid cooled connector 425 may also be mounted in an embedded or suspended manner, i.e., with grooves provided on the panel 413 or mounted on a flat surface of the panel 413, the vehicle end electrical connector 421 and the liquid cooled connector 425 may protrude only with respect to the front surface of the panel 413 and flush with respect to the rear surface of the panel 413, or protrude only with respect to the rear surface of the panel 413 and flush with respect to the front surface of the panel 413. The vehicle-end electrical connector 421 is fixedly connected through a mounting hole 504 provided in the panel 413. The liquid-cooled connector 425 is then secured to the panel 413 by a first securing plate 510 and a second securing plate 520 provided on the front surface of the panel 413. The first fixing plate 510 and the second fixing plate 520 are both L-shaped plates and two in number. The first fixing plate 510 includes a first portion 511 and a second portion 512 perpendicular to each other, and the second fixing plate 520 includes a third portion 523 and a fourth portion 524 perpendicular to each other. The first portion 511 of the first fixing plate 510 is attached to the front surface of the panel 413 and the left and right sides of the second mounting opening 502, and the first portion 511 of the first fixing plate 510 may be fixed to the panel 413 by welding. Of course, alternatively, the first portion 511 of the first fixing plate 510 may be fixed to the panel 413 by a threaded fastener such as a screw or bolt. The third portion 523 of the second fixing plate 520 is fixed to the second portion 512 of the first fixing plate 510 by a threaded fastener such as a bolt, so that the connection between the third portion 523 of the second fixing plate 520 and the second portion 512 of the first fixing plate 510 can be adjusted in the front-rear direction, and the assembly space of the liquid-cooled connector in the front-rear direction can be further adjusted to adapt to different sizes of the liquid-cooled connector. Preferably, each second portion 512 is secured to the third portion 523 by two or more threaded fasteners to prevent displacement. When the second fixing plate 520 is mounted, the fourth portion 524 of the second fixing plate 520 is made to extend toward the inside of the second mounting port 502. Since the first fixing plate 510 and the second fixing plate are both L-shaped plates, the fourth portion 524 of the second fixing plate 520 is parallel to the panel 413. In the present embodiment, the third portion 523 is attached to the inner side of the second portion 512, and in other embodiments, the third portion 523 may be attached to the outer side of the second portion 512. The second fixing plate 520 is provided with liquid-cooling connection holes 525, and positions of the liquid-cooling connection holes 525 are corresponding to positions of the liquid-cooling connection columns 4251 at four corners of the liquid-cooling connector 425, so that the liquid-cooling connector 425 can be fixed to the fourth portion 524 of the second fixing plate 520 by threaded fasteners such as bolts or screws.
In other embodiments, the first and second fixing plates 510 and 520 may be replaced with integrally formed Z-shaped plates. In other embodiments, the first fixing plate 510 and the second fixing plate 520 may be provided on both upper and lower sides of the second mounting port 502. Alternatively, fixing plates may be provided at both the upper and lower sides and the left and right sides of the second mounting port 502 to fix the liquid-cooled connector 425. Alternatively, a mounting plate may be provided on either side of the second mounting port 502 to secure the liquid cooled connector 425.
The mounting plate 411 is further provided with the extension plates 415 fixed to the cross beam 105 from both sides, so that the mounting strength of the mounting plate 411 in the height direction can be further enhanced, and the electric connection portion 303 and the liquid-cooled connection portion 305 of the battery pack are prevented from being misaligned with the electric interface and the liquid-cooled interface on the mounting plate 411 due to deformation of the mounting plate 411 in the front-rear direction of the electric vehicle. The bottom flap 506 extends forward from the underside of the panel 413 and is positioned in front of the two extension panels 415 to provide reinforcement to the panel 413.
As shown in fig. 5 and 6, the extension plate 415 includes a bending portion 417 and a fixing portion 419, the bending portion 417 extends from a side edge of the panel 413 toward a direction away from the panel 413, the fixing portion 419 is connected to an end of the bending portion 417 away from the panel 413 and extends toward a direction away from the bending portion 417, and the fixing portion 419 is fixed to the cross member 105 of the vehicle body 100 and is attached to a surface of the cross member 105 facing the panel 413. In other embodiments, if the connector assembly 400 is mounted to the quick-change bracket 200, the fixing portion 419 is fixed to the quick-change bracket 200 at this time. The extending plate 415 can further enhance the mounting strength of the mounting plate 411 in the height direction, and avoid the deformation of the mounting plate 411 in the front-rear direction of the electric vehicle, which results in the electrical connection portion 303 and the liquid-cooled connection portion 305 of the battery pack not being aligned with the electrical interface and the liquid-cooled interface on the mounting plate 411. The two fixing portions 419 extend in a direction away from each other, increasing the connection strength of the mounting plate 411, and facilitating the mounting and fixing of the mounting plate 411.
In other embodiments, the mounting plate 411 may be formed in other forms, such as a straight plate shape, and since the bridge 405 is already provided in the mounting portion 403 to support the mounting plate 411, the mounting portion 403 can be supported to effectively prevent the mounting plate 411 from being deformed in the front-rear direction of the electric vehicle even if the mounting plate 411 is not supported by the extension plate 415.
In this embodiment, the parts may be perforated and connected by a threaded member such as a bolt or screw, and in other embodiments, other conventional connection and fixing methods may be used.
The mounting manner of the battery pack 300 of the electric vehicle is briefly described below to explain the function of the connector assembly 400.
First, the battery pack 300 is taken out of the charging box of the battery exchange station by the battery exchange device, the battery pack 300 is fully charged, the battery pack 300 is transferred to the lower side of the electric vehicle, and the battery pack 300 is lifted upwards, so that the battery pack 300 is mounted on the quick-change bracket 200, during the lifting of the battery pack 300, the electric connection portion 303 and the liquid-cooled connection portion 305 at the front of the battery pack 300 face the car-end electric connector 421 and the liquid-cooled connector 425 of the connector assembly 400, since the car-end electric connector 421 protrudes further toward the battery pack 300 than the liquid-cooled connector 425, the liquid-cooled connector 425 is farther away from the battery pack 300 than the car-end electric connector 421, the electric connection portion 303 of the battery pack 300 does not touch the liquid-cooled connector 425 of the connector assembly 400 during the lifting, the battery pack 300 is moved forward by the battery changing device after the battery pack 300 reaches the mounting position upward without risk of leakage short circuit, the electric connection portion 303 and the liquid-cooled connection portion 305 of the battery pack 300 are respectively connected to the vehicle-end electric connector 421 and the liquid-cooled connector 425 of the connector assembly 400 while the battery pack 300 is locked on the quick-change bracket 200, and the bridge member 405 and the extension portion are provided in the connector assembly 400 to support the mounting plate 411 provided with the vehicle-end electric connector 421 and the liquid-cooled connector 425 in the front-rear direction, so that deformation of the mounting plate 411 in the front-rear direction is relieved, and the problem of poor connection between the electric connection portion 303 and the liquid-cooled connection portion 305 of the battery pack 300 and the vehicle-end electric connector 421 and the liquid-cooled connector 425 of the connector assembly 400 is avoided.
The terms "front", "rear", "up" and "down" are used herein to refer to the orientation of an electric vehicle.
In the description of the present invention, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate or refer to an orientation or positional relationship of a device or element in normal use, merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element in question must have a particular orientation, be configured and operated in a particular orientation at any time, and thus should not be construed as limiting the invention in this respect.
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 (13)

1. A connector assembly for mounting to an electric vehicle and for connecting to a battery pack of the electric vehicle, the connector assembly comprising: the mounting part, the vehicle end electric connector and the liquid cooling connector are arranged on the mounting part;
wherein the vehicle-end electrical connector and the liquid-cooled connector are arranged in a height direction of the electric vehicle.
2. The connector assembly of claim 1, wherein the liquid-cooled connector is disposed below the vehicle-end electrical connector.
3. The connector assembly of claim 2, wherein the vehicle-end electrical connector protrudes further toward the battery pack than the liquid-cooled connector.
4. The connector assembly of claim 1, wherein the mounting portion is connected to a body of the electric vehicle or a quick-change bracket mounted to the body and configured to mount the battery pack.
5. The connector assembly of claim 4, wherein the mounting portion comprises: a plurality of bridges and a mounting plate for mounting the vehicle-end electrical connector and the liquid-cooled connector;
the plurality of bridge members are connected to the mounting plate and are arranged in the height direction of the electric vehicle.
6. The connector assembly of claim 5, wherein the bridge member comprises a first plate member and a second plate member perpendicular to each other, the first plate member being attached to the mounting plate, the second plate member being attached to the body or quick-change bracket.
7. The connector assembly of claim 6, wherein the vehicle end electrical connector has a connection end electrically connected to the battery pack, and the first plate member is attached to a side of the mounting plate remote from the connection end.
8. The connector assembly of claim 5, wherein the bridge is disposed above the vehicle end electrical connector and the liquid cooled connector.
9. The connector assembly of claim 5, wherein the mounting plate includes a panel and extension plates extending outwardly from both sides of the panel, the extension plates extending to and being secured to the body or the quick-change bracket;
wherein the panel is used for installing the vehicle-end electric connector.
10. The connector assembly of claim 9, wherein the extension plate includes a bending portion extending from a side edge of the panel toward a direction away from the panel, and a fixing portion connected to an end of the bending portion away from the panel and extending toward the direction away from the bending portion, the fixing portion being fixed to the body or the quick-change bracket.
11. The connector assembly of claim 10, wherein the two securing portions extend away from each other.
12. An electric vehicle characterized in that it comprises a connector assembly according to any one of claims 1-11.
13. The electric vehicle of claim 12, characterized in that the electric vehicle includes two girders extending in a length direction of the electric vehicle and a cross beam connecting the two girders, the connector assembly being mounted to the cross beam.
CN202211741132.0A 2022-12-30 2022-12-30 Connector assembly and electric vehicle Pending CN116533781A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202211741132.0A CN116533781A (en) 2022-12-30 2022-12-30 Connector assembly and electric vehicle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202211741132.0A CN116533781A (en) 2022-12-30 2022-12-30 Connector assembly and electric vehicle

Publications (1)

Publication Number Publication Date
CN116533781A true CN116533781A (en) 2023-08-04

Family

ID=87442378

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202211741132.0A Pending CN116533781A (en) 2022-12-30 2022-12-30 Connector assembly and electric vehicle

Country Status (1)

Country Link
CN (1) CN116533781A (en)

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