CN113492698A - Charging device, charging assembly and battery replacement station - Google Patents

Charging device, charging assembly and battery replacement station Download PDF

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Publication number
CN113492698A
CN113492698A CN202010260555.5A CN202010260555A CN113492698A CN 113492698 A CN113492698 A CN 113492698A CN 202010260555 A CN202010260555 A CN 202010260555A CN 113492698 A CN113492698 A CN 113492698A
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CN
China
Prior art keywords
battery pack
floating
charging
charging device
electrical connector
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
CN202010260555.5A
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Chinese (zh)
Inventor
张建平
黄春华
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 CN202010260555.5A priority Critical patent/CN113492698A/en
Priority to PCT/CN2021/085664 priority patent/WO2021197495A1/en
Publication of CN113492698A publication Critical patent/CN113492698A/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
    • 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
    • B60L53/10—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 characterised by the energy transfer between the charging station and the vehicle
    • B60L53/14—Conductive energy transfer
    • B60L53/16—Connectors, e.g. plugs or sockets, specially adapted for charging electric vehicles
    • 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
    • B60L53/30—Constructional details of charging stations
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/62—Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
    • H01R13/629—Additional means for facilitating engagement or disengagement of coupling parts, e.g. aligning or guiding means, levers, gas pressure electrical locking indicators, manufacturing tolerances
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0013—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries acting upon several batteries simultaneously or sequentially
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0042—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by the mechanical construction
    • H02J7/0045—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by the mechanical construction concerning the insertion or the connection of the batteries
    • 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
    • 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
    • Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
    • 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
    • Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/10—Technologies relating to charging of electric vehicles
    • Y02T90/12—Electric charging stations
    • 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
    • Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/10—Technologies relating to charging of electric vehicles
    • Y02T90/14—Plug-in electric vehicles

Abstract

The invention discloses a charging device, a charging assembly and a battery replacement station, wherein the charging device comprises a floating disc, the floating disc is used for bearing a battery pack and moves towards a first floating direction for a first displacement under the action of the gravity of the battery pack; the electric connector is electrically connected with the battery pack so as to charge and discharge the battery pack; and the linkage mechanism is respectively connected with the floating disc and the electric connector, and drives the electric connector to move for a second displacement along the direction close to the battery pack when the floating disc generates a first displacement along the first floating direction. The electrical connector of the present invention may be oriented in any orientation. The linkage mechanism is linked through the change of the load of the floating disc, so that the electric connector can respond to and is in butt joint with the battery pack in time. The power for moving the electric connector comes from the gravity of the battery pack, external driving is not needed, and the internal structure of the charging device is simplified.

Description

Charging device, charging assembly and battery replacement station
Technical Field
The invention relates to a charging device, a charging assembly and a battery replacement station.
Background
With social development and technological progress, electric vehicles are more and more popular with consumers, and as a power source of the electric vehicles, a battery box needs to be charged in time. Due to the requirements of endurance mileage and power, the electric quantity of a battery box required by an automobile is higher and higher, the requirement of using the automobile in partial scenes cannot be met by a traditional charging mode, the battery box needs to be replaced and placed on a charging frame for charging, and the automobile can be normally used in the charging time.
The charging rack is provided with an electric connection plug which is matched with an electric connection socket on a battery pack, when the battery pack on the electric automobile is unloaded and put on the charging rack for charging, the electric connection plug on the charging rack and the electric connection socket on the battery pack need to be butted, in the prior art, an external driving mechanism is generally used for driving the electric connection plug to approach the electric connection socket on the battery pack so as to realize butting, so that equipment in the charging rack is complex in connection and high in cost, and extra power needs to be provided for driving the electric connection plug to move.
In addition, the electric connection plug on the existing electric automobile is generally arranged on the side face, used for placing the space of the battery box, in the automobile so as to meet the stability of electric connection of the automobile in the driving process, and if the electric connection plug in the charging frame is also arranged on the side face, the electric connection can be realized only after the battery box is integrally rotated, and for the battery box with a large volume size, the problems of large occupied space, complex operation and the like can be caused in the rotating process of the battery box.
Disclosure of Invention
The invention aims to overcome the defects that a charging device in the prior art is poor in adaptability and cannot be used for butting battery packs with different charging port directions, so that the position of each battery pack is complicated to adjust, and provides the charging device, a charging assembly and a battery replacement station.
The invention solves the technical problems through the following technical scheme:
a charging device, characterized in that the charging device comprises:
the floating disc is used for bearing the battery pack and moves towards a first floating direction for first displacement under the action of the gravity of the battery pack;
the electric connector is electrically connected with the battery pack so as to charge and discharge the battery pack;
and the linkage mechanism is respectively connected with the floating disc and the electric connector, and when the floating disc generates a first displacement along the first floating direction, the linkage mechanism drives the electric connector to move a second displacement along the direction close to the battery pack so as to enable the electric connector to be electrically connected with the battery pack.
This scheme utilizes the gravity of battery package to make the dish that floats remove, through set up link gear between dish and the electric connector that floats, and then drives the electric connector and remove in order to form the electricity and connect towards the direction of battery package, utilizes the self gravity of battery package to realize the electricity promptly and connects, does not need extra power drive electric connector to remove, and this linkage mode is applicable in the electric connection of multiple orientation of battery package.
Preferably, the first floating direction is a vertically downward direction, the floating disc receives the battery pack in the vertical direction, and the floating disc is displaced toward the first floating direction along with the gravity of the battery pack.
The first floating direction is vertical downward, namely the gravity of the battery pack can be completely applied to the floating disc, so that the floating disc can drive the linkage mechanism to move more timely.
Preferably, the second displacement is greater than the first displacement. The distance between the electrical connector and the floating disk needs to vary with different conditions.
When the battery pack is moved in, the electric connector and the battery pack are spaced at a certain interval to avoid interference; after the battery pack is moved in, the electric connector is contacted with the battery pack and is charged. Therefore, the second displacement is larger than the first displacement, so that the electric connector is gradually close to the battery pack in the moving-in process of the battery pack, and the interference generated in the movement process is avoided.
Preferably, the direction of the second displacement is a vertically downward direction, the electrical connector is disposed above the floating disc, and the linkage mechanism is configured to be linked in the vertically downward direction.
The charging port of the battery pack is thus oriented substantially perpendicular to the direction of movement of the battery pack. When the charging vehicle is matched, the charging port of the battery pack faces horizontally, so that the battery pack only needs to be turned over by 90 degrees between the electric vehicle and the charging device, the battery replacing process can be obviously simplified, and the battery replacing equipment can complete the steering of the battery pack in a small space.
Preferably, a floating reset element is connected to the floating plate for resetting the floating plate in a second floating direction opposite to the first floating direction when no gravity of the battery pack acts on the floating plate.
After the battery pack is removed, the floating reset element provides an active restoring force that causes the floating plate to return to its original position in preparation for a subsequent battery pack to be charged.
Preferably, the floating reset element is an elastic element, and when a battery pack is loaded on the floating disk, the elastic element deforms in the first floating direction and generates an elastic restoring force towards the second floating direction.
Preferably, the electrical connector is connected with a charging reset element, and the charging reset element is used for driving the electrical connector to reset when no battery pack has gravity effect.
After the battery pack is removed, the charge reset element provides an active restoring force to restore the floating plate in place in preparation for a subsequent battery pack to enter into charge.
The floating reset element and the charging reset element may be provided simultaneously, thereby enabling the electrical connector and the floating disk to be reset regardless of the linkage mechanism.
In the case of some linkages, such as linkages, only one of the floating reset element and the charge reset element need be provided, and resetting either of the electrical connector and the floating plate will cause the other to reset.
Preferably, the charge reset element is an elastic element, and when a battery pack is loaded on the floating disc, the elastic element deforms in the direction of the second displacement and generates an elastic deformation force in a direction opposite to the second displacement.
Preferably, the charging device further comprises a guiding mechanism for guiding the electric connector to move towards the battery pack under the action of the linkage mechanism so as to realize electric connection.
The guide mechanism can guide the moving direction of the electrical connector, so that the electrical connector can move to a direction close to or far away from the battery pack according to a fixed track.
Preferably, the guiding mechanism includes a sliding block and a guiding rail, wherein the sliding block or the guiding rail is fixed on the electrical connector and is connected with the guiding rail or the sliding block which is relatively fixed.
The slide moves on the guide rail along a fixed trajectory. The slider can be arranged on the electric connector to move along with the electric connector, and can also be arranged at a relatively fixed position to guide the electric connector to move.
Preferably, the electric connector includes a connecting seat and a charging head, the charging head is disposed on the connecting seat, wherein the connecting seat is connected with the linkage mechanism, and the charging head is used for being connected with a charging port of the battery pack.
Preferably, a floating element is arranged between the connecting seat and the charging head, so that floating electric connection between the electric connector and the battery pack is realized.
The floating element achieves a floating displacement of the charging head. Therefore, even if an error occurs in the process of butting the battery pack with the charging port, the error can be corrected through the floating displacement of the charging head.
Preferably, the floating element is an elastic element, a containing cavity for containing the charging head is arranged in the connecting seat, and the charging head is arranged in the containing cavity through the elastic element.
The elastic element can play a role of buffering the movement of the charging head through the compression and the extension of the elastic element. Elastic element can one end support the head that charges, and the other end supports the inside wall that holds the chamber to make the head that charges to the motion homoenergetic of the inside wall that holds the chamber can smoothly realize.
Preferably, the charging head is further provided with a positioning pin, and the positioning pin is used for butting with a positioning hole arranged on the battery pack.
Preferably, the charging device further includes a slider and a guide rail, the electrical connector further includes a base, the slider or the guide rail is fixed on the base and is slidably connected with the guide rail or the slider which is correspondingly arranged, and the connecting seat extends in a direction away from the slider and the guide rail.
Preferably, the linkage mechanism includes a sliding mechanism, a first traction member and a second traction member, the first traction member is respectively connected with the sliding mechanism and the floating disc, the second traction member is respectively connected with the electrical connector and the mounting seat, the electrical connector is mounted on the mounting seat and moves relative to the mounting seat, and the second traction member is connected with the sliding mechanism in a sliding manner.
Thereby constituting the structure of the movable pulley. Wherein the second traction member moves twice as far as the first traction member, thereby achieving a second displacement greater than the first displacement.
A charging assembly, characterized in that said charging assembly comprises said charging device.
A power swapping station, characterized in that the power swapping station comprises:
the vehicle-carrying platform is used for parking the electric vehicle so as to replace the battery pack;
the charging assembly is used for placing a battery pack and comprises the charging device;
and the battery replacing equipment is used for taking, placing and transferring the batteries between the electric vehicle and each charging bin of the charging assembly.
The positive progress effects of the invention are as follows: the movable electrical connector of the present invention does not need to have the same direction as the battery pack is transported, and the orientation of the electrical connector may be any orientation. The linkage mechanism is linked through the change of the load of the floating disc, so that the electric connector can respond to and is in butt joint with the battery pack in time. The power for moving the electric connector comes from the gravity of the battery pack, external driving is not needed, and the internal structure of the charging device is simplified.
Drawings
Fig. 1 is a schematic structural diagram of a charging assembly according to a preferred embodiment of the invention.
Fig. 2 is a schematic diagram of an arrangement of the charging device according to the preferred embodiment of the invention.
Fig. 3 is a schematic overall structure diagram of a charging device according to a preferred embodiment of the invention.
Fig. 4 is a schematic top view of a charging device according to a preferred embodiment of the invention.
Fig. 5 is a schematic side view of a charging device according to a preferred embodiment of the invention.
Fig. 6 is a bottom structure diagram of the electrical connector according to the preferred embodiment of the invention.
Fig. 7 is a schematic structural diagram of a power swapping station according to a preferred embodiment of the invention.
Detailed Description
The invention is further illustrated by the following examples, which are not intended to limit the scope of the invention.
As shown in fig. 1 to 7, the present embodiment discloses a charging assembly 2, and the charging assembly 2 shown in fig. 1 and 2 includes a charging chamber a. Each charging chamber a is provided with a charging device 20. As shown in fig. 3, the charging device 20 of the present embodiment includes a floating plate 21, and the floating plate 21 is used for carrying the battery pack 4 and moving toward a first floating direction V by the gravity of the battery pack 4 for a first displacement. In this embodiment, the floating tray 21 may be a flat plate structure, a frame structure, or other structural members that can be used to support a battery pack and float along a first direction, the charging assembly 2 further includes a fixed tray 28 disposed below the floating tray 21 for supporting and supporting the floating tray 21, the charging bin a is composed of a charging rack, the charging rack is composed of a plurality of horizontal and vertical beams, and the floating tray 21 may also be directly disposed on the charging rack.
As shown in fig. 3, the charging device 20 of the present embodiment further includes an electrical connector 22 for electrically connecting with the battery pack 4 to charge and discharge the battery pack 4. In this embodiment, the electrical connector 22 is disposed above the floating tray 21 in the charging bin a, and can be electrically plugged with the battery pack 4 in a vertical direction to charge and discharge the battery pack, the electrical connector 22 can be directly disposed on a cross beam of the charging rack through the mounting seat, the electrical connector 22 includes a charging head 221 and a terminal (not shown in the figure, and may be actually disposed on the top or the side of the electrical connector 22), the charging head 221 is configured to be electrically connected with a charging port of the battery pack 4, and the terminal is configured to be connected to an external charging module to charge the battery pack 4.
As shown in fig. 3, the charging device 20 of the present embodiment further includes a linkage mechanism 23, the linkage mechanism 23 is respectively connected to the floating plate 21 and the electrical connector 22, and when the floating plate 21 generates a first displacement along the first floating direction V, the linkage mechanism 23 drives the electrical connector 22 to move a second displacement along a direction close to the battery pack 4, so that the electrical connector 22 is electrically connected to the battery pack 4.
The embodiment utilizes the gravity of battery package 4 to make floating disc 21 remove, through set up link gear 23 between floating disc 21 and electric connector 22, and then drives electric connector 22 and remove in order to form the electricity and connect towards the direction of battery package 4, utilizes the self gravity of battery package 4 to realize the electricity promptly and connects, does not need extra power drive electric connector 22 to remove, and this linkage mode is applicable in the electric connection of the multiple orientation of battery package 4.
The electric connector 22 of the present invention is interlocked by the interlocking mechanism 23 to be mated with the battery pack 4, and is no longer a fixed electric connector 22, and therefore, the moving electric connector 22 does not need to be the same as the conveying direction of the battery pack 4, and the electric connector 22 may be oriented in any direction. Wherein the linkage mechanism 23 is linked by a change in the load of the floating disc 21, whereby the electrical connector 22 can respond and interface with the battery pack 4 in time. The power for moving the electrical connector 22 comes from the gravity of the battery pack 4, and no external driving is required, which is beneficial to simplifying the internal structure of the charging device 20.
In the present embodiment, the first floating direction V is a vertically downward direction, the floating tray 21 receives the battery pack 4 in the vertical direction as shown in fig. 3, and the floating tray 21 is displaced toward the first floating direction V in accordance with the gravity of the battery pack 4. The first floating direction V is vertically downward, i.e. the gravity of the battery pack 4 can be fully applied to the floating plate 21, so that the floating plate 21 can drive the movement of the linkage mechanism 23 more timely.
In this embodiment, the floating plate 21 can float in the vertical direction, specifically, the floating plate 21 is installed in the charging chamber, and in this embodiment, the floating plate 21 is installed on the fixed plate 28 and can move in the vertical direction under the gravity of the battery pack 4. Which may be a spring, rubber pad, or other elastic member that can withstand the gravitational compression of the battery pack and recover its deformation after removal from the battery pack 4. In other embodiments, the floating plate 21 may also be directly mounted to the cross member of the charging stand to provide a floating load.
In this embodiment, the second displacement is greater than the first displacement. When the battery pack 4 enters the charging bin, the bottom of the battery pack is higher than the surface of the floating disc, so that the distance between the electric connector 22 and the surface of the floating disc 21 is larger than the height of the battery pack 4 to avoid interference; thus, after the battery pack 4 is placed on the floating tray 21, the electrical connector 22 must move a greater distance than the floating tray to make the electrical connection between the electrical connector 22 and the battery pack 4.
As shown in fig. 3, the direction of the second displacement in this embodiment is a vertically downward direction, the electrical connector 22 is disposed above the floating plate 21, and the linkage mechanism 23 is disposed between the electrical connector 22 and the floating plate 21, and drives the electrical connector 21 to move downward in the vertical direction. In this embodiment, the charging port of the battery pack 4 entering the charging bin a is upward, and in order to realize the electrical connection, the electrical connector disposed with the charging head 221 facing downward is moved downward along the vertical direction by the link mechanism, that is, the electrical connection between the electrical connector and the battery pack can be realized only when the direction of the second displacement is the vertical downward direction. When the battery pack 4 is installed on the electric vehicle, the battery pack 4 and the electric connector 22 on the electric vehicle generally complete electric insertion along the horizontal direction, the electric insertion along the horizontal direction is suitable for the electric vehicle in the driving process, especially suitable for the situation of severe shaking of the vehicle, so as to provide reliable and stable electric connection, when the battery pack 4 on the electric vehicle is unloaded and is connected with the electric connector located in the charging bin and located in the inner side horizontal direction to realize charging and discharging, the battery pack needs to be horizontally rotated 180 degrees to be abutted with the electric connector in the charging bin, for the battery pack with larger size, a larger battery changing space needs to be occupied, and the battery pack is not suitable for the situation with smaller battery changing area, by adopting the electric connector 22 arranged above the floating disc in the embodiment, charging and discharging can be realized only by turning the battery pack 4 along the vertical direction by 90 degrees, and a larger battery changing space does not need to be occupied, meanwhile, the battery pack 4 is electrically connected with the electric connector 22 by utilizing the gravity of the battery pack 4, an additional driving mechanism is omitted, the battery pack is placed in place on the floating disc, the electric connection between the battery pack and the floating disc can be realized, the complex operation of alignment between the electric connector and the battery pack is omitted, the charging butt joint efficiency is higher, and the charging cost is lower.
In other embodiments, the electrical connector 22 can be adapted to be disposed on a side or bottom surface of the charging chamber to accommodate different orientations of the receptacle end of the battery pack 4 placed in the charging chamber a. Specifically, the link mechanism 23 in the present embodiment may be adopted, and only the arrangement position of the electrical connector 22 needs to be adjusted, so that the electrical connector 22 moves in the direction toward the battery under the gravity of the battery pack 4.
As shown in fig. 3, the floating plate 21 of the present embodiment is connected with a floating reset element 26, and the floating reset element 26 is used for driving the floating plate 21 to reset in a second floating direction when the gravity of the battery pack 4 is not applied, wherein the second floating direction is opposite to the first floating direction V. After the battery pack 4 is removed, the floating reset element 26 provides an active restoring force that restores the floating plate 21 to its original position in preparation for a subsequent battery pack 4 to enter into charge. The floating reset element 26 in this embodiment may be the same as the elastic member or may be different from the elastic member. Through setting up floating reset element 26, at the in-process of taking out battery package 4 from floating dish 21, floating reset element 26 acts on floating dish 21 and resets along vertical direction rebound, and then drive electric connector 22 and realize the electricity and connect the separation with battery package 4, need not extra actuating mechanism and drive electric connector and battery package separation, and simultaneously, can realize the separation of electricity connection at the in-process of getting the battery package, the efficiency of getting the battery package is improved, and then whole trade electric efficiency has been improved. As shown in fig. 3, the floating reset element 26 of the present embodiment is an elastic element that deforms in the first floating direction V and generates an elastic restoring force toward the second floating direction when the battery pack 4 is carried on the floating tray 21. Specifically, the floating reset element 26 may be a spring or other element that can elastically deform under the action of an external force and can recover the deformation after the external force is removed, two ends of the floating reset element are respectively connected to the floating disc 21 and the fixed disc 28, or two ends of the floating reset element 26 are respectively connected to the floating disc and the transverse and longitudinal beams on the charging rack.
As shown in fig. 3 and 4, the electrical connector 22 of the present embodiment is connected with a charging reset element 27, and the charging reset element 27 is used for driving the electrical connector 22 to reset when the gravity of the battery pack 4 is applied.
The charging reset element 27 can be arranged between the electric connector 22 and the mounting seat 24 or between the electric connector 22 and a transverse longitudinal beam on the charging frame, and by arranging the charging reset element 27, during the process of taking out the battery pack, because the floating disk 21 does not apply downward force to the electric connector 22 any more, the electric connector 22 moves upwards under the action of the charging reset element 27 to restore the original position so as to facilitate the subsequent putting in of the battery pack 4.
As shown in fig. 3 and 4, the floating reset element 26 and the charging reset element 27 of the present embodiment may be provided simultaneously, thereby enabling the electrical connector 22 and the floating plate 21 to be reset regardless of the linkage 23. In the case of some linkages 23, such as linkages, only one of the floating reset element 26 and the charge reset element 27 need be provided, with resetting of either of the electrical connector 22 and the floating plate 21 causing the other to reset.
As shown in fig. 3 and 4, the charge returning element 27 of the present embodiment is an elastic element that deforms in the direction of the second displacement when the battery pack 4 is carried on the floating tray 21, and generates an elastic deformation force in the direction opposite to the second displacement. Specifically, the charge returning element 27 may be a spring or the like that is elastically deformed by an external force and is restored to the deformation after the external force is removed,
as shown in fig. 5, the charging device 20 of the present embodiment further includes a guiding mechanism for guiding the electric connector 22 to move toward the battery pack 4 under the action of the linkage mechanism 23 to achieve electric connection. The guide mechanism is capable of guiding the direction of movement of the electrical connector 22.
As shown in fig. 5, the guiding mechanism of the present embodiment includes a sliding block 252 and a guiding rail 251, wherein the sliding block 252 or the guiding rail 251 is fixed on the electrical connector 22, and is connected with the guiding rail 251 or the sliding block 252 which is fixed relatively. As shown in fig. 3 and 5, the electrical connector 22 of the present embodiment includes a connecting seat 222 and a charging head 221, the charging head 221 is disposed on the connecting seat 222, wherein the connecting seat 222 is connected to the linkage mechanism 23, and the charging head 221 is used for connecting to a charging port of the battery pack 4.
As shown in fig. 5 and 6, a floating member 223 is disposed between the connection holder 222 and the charging head 221 of the present embodiment, so that the floating electrical connection between the electrical connector 22 and the battery pack 4 is realized. The floating member 223 achieves floating displacement of the charging head 221. In this way, even if there is an error in the process of docking with the charging port of the battery pack 4, the error can be corrected by the floating displacement of the charging head 221.
As shown in fig. 5 and 6, the floating element 223 of the present embodiment is an elastic element, an accommodating cavity for accommodating the charging head 221 is formed in the connecting seat 222, and the charging head 221 is disposed in the accommodating cavity through the elastic element.
As shown in fig. 5 and 6, the charging head 221 of the present embodiment is further provided with a positioning pin 220, and the positioning pin 220 is used for abutting against a positioning hole provided on the battery pack 4.
As shown in fig. 4 and 5, the charging device 20 of the present embodiment further includes a sliding block 252 and a guiding rail 251, the electrical connector 22 further includes a base 224, the sliding block 252 or the guiding rail 251 is fixed on the base 224 and is slidably connected to the guiding rail 251 or the sliding block 252, and the connecting base 222 extends in a direction away from the sliding block 252 and the guiding rail 251.
As shown in fig. 3, the linkage mechanism 23 of the present embodiment includes a sliding mechanism 233, a first pulling member 231, and a second pulling member 232, wherein the first pulling member 231 is connected to the sliding mechanism 233 and the floating plate 21, respectively, the second pulling member 232 is connected to the electrical connector 22 and the mounting base 24, respectively, the electrical connector 22 is mounted on the mounting base 24 and moves relative to the mounting base 24, and the second pulling member 232 is connected to the sliding mechanism 233 in a sliding manner. Thereby constituting the structure of the movable pulley.
The first traction member 231 and the second traction member 232 may be of a wire rope, a belt, or the like. The sliding mechanism 233 may be a pulley or a slider. The second pulling member 232 slides under the sliding mechanism 233, wherein the second pulling member 232 not only slides with respect to the sliding mechanism 233 but also moves up and down along with the sliding mechanism 233. The first drawing member 231 is directly fixed to the sliding mechanism 233 and thus moves together with respect to the sliding mechanism 233. Thus, regardless of the direction of movement, the moving distance of the second traction member 232 includes the sliding distance with respect to the sliding mechanism 233 and the distance moving along with the sliding mechanism 233, while the first traction member 231 includes only the distance moving along with the sliding mechanism 233, and thus the moving distance of the second traction member 232 is twice that of the first traction member 231. At the same time, one end of the second pulling member 232 is connected to the mounting seat 24 and remains fixed and does not move, so that the electrical connector 22 connected to the other end of the second pulling member 232 achieves twice the moving distance relative to the first pulling member 231, thereby achieving the second displacement greater than the first displacement.
As shown in fig. 7, the embodiment further discloses a battery replacement station, which includes a vehicle carrying platform for the electric vehicle 3 to stop for replacing the battery pack 4; the charging assembly 2 is used for placing the battery pack 4 and comprises a charging device 20; the battery replacing device 1 is used for taking, placing and transferring batteries between the electric vehicle 3 and each charging bin A of the charging assembly 2.
The movable electrical connector of the present invention does not need to have the same direction as the battery pack is transported, and the orientation of the electrical connector may be any orientation. The linkage mechanism is linked through the change of the load of the floating disc, so that the electric connector can respond to and is in butt joint with the battery pack in time. The power for moving the electric connector comes from the gravity of the battery pack, external driving is not needed, and the internal structure of the charging device is simplified.
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 that 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 spirit and scope of the invention, and these changes and modifications are within the scope of the invention.

Claims (18)

1. A charging device, characterized in that the charging device comprises:
the floating disc is used for bearing the battery pack and moves towards a first floating direction for first displacement under the action of the gravity of the battery pack;
the electric connector is electrically connected with the battery pack so as to charge and discharge the battery pack;
and the linkage mechanism is respectively connected with the floating disc and the electric connector, and when the floating disc generates a first displacement along the first floating direction, the linkage mechanism drives the electric connector to move a second displacement along the direction close to the battery pack so as to enable the electric connector to be electrically connected with the battery pack.
2. The charging device of claim 1, wherein the first float direction is a vertically downward direction, the floating tray receiving the battery pack in the vertical direction, the floating tray being displaced toward the first float direction in response to a weight of the battery pack.
3. A charging arrangement as claimed in claim 2, in which the second displacement is greater than the first displacement.
4. A charging arrangement as claimed in claim 1, in which the direction of the second displacement is in a vertically downward direction, the electrical connector being disposed above the floating disc, the linkage being arranged to link in the vertically downward direction.
5. A charging arrangement as claimed in claim 1, in which a floating reset element is connected to the floating plate for resetting the floating plate in a second floating direction when no gravity is applied to the battery pack, the second floating direction being opposite to the first floating direction.
6. A charging arrangement as claimed in claim 5, in which the floating return element is a resilient element which deforms in the first floating direction and generates a resilient return force in the direction of the second floating direction when a battery pack is carried on the floating tray.
7. The charging device of claim 1, wherein a charging reset element is coupled to the electrical connector for resetting the electrical connector when no battery pack weight is applied.
8. A charging arrangement as claimed in claim 7, in which the charge return element is a resilient element which deforms in the direction of the second displacement when a battery pack is carried on the floating disc and generates a resilient deformation force in a direction opposite to the second displacement.
9. The charging device of claim 1, further comprising a guide mechanism for guiding the electrical connector to move toward the battery pack under the action of the linkage mechanism to make the electrical connection.
10. A charging arrangement as claimed in claim 9, in which the guide means comprises a slider and a guide track, and in which the slider or the guide track is fixed to the electrical connector and is slidably connected to the guide track or the slider which is fixed relative thereto.
11. The charging device of claim 1, wherein the electrical connector comprises a connecting base and a charging head, the charging head is disposed on the connecting base, wherein the connecting base is connected to the linkage mechanism, and the charging head is configured to be connected to a charging port of a battery pack.
12. A charging arrangement as claimed in claim 11, in which a floating member is provided between the connection socket and the charging head to effect a floating electrical connection between the electrical connector and the battery pack.
13. The charging device according to claim 12, wherein the floating member is an elastic member, a receiving cavity for receiving the charging head is provided in the connecting base, and the charging head is provided in the receiving cavity by the elastic member.
14. A charging arrangement as claimed in claim 11, in which the charging head is further provided with locating pins for interfacing with locating holes provided on the battery pack.
15. The charging device of claim 11, further comprising a slider and a guide rail, wherein the electrical connector further comprises a base, the base is fixed with the slider or the guide rail and is slidably connected with the guide rail or the slider, and the connecting base extends away from the slider and the guide rail.
16. The charging device according to any one of claims 1 to 14, wherein the linkage mechanism comprises a sliding mechanism, a first pulling member and a second pulling member, the first pulling member is connected with the sliding mechanism and the floating disc respectively, the second pulling member is connected with the electric connector and the mounting base respectively, the electric connector is mounted on the mounting base and moves relative to the mounting base, and the second pulling member is connected with the sliding mechanism in a sliding manner.
17. A charging assembly, characterised in that it comprises a charging device as claimed in any one of claims 1 to 16.
18. A power swapping station, comprising:
the vehicle-carrying platform is used for parking the electric vehicle so as to replace the battery pack;
a charging assembly for housing a battery pack, comprising a charging device as claimed in claims 1-16;
and the battery replacing equipment is used for taking, placing and transferring the batteries between the electric vehicle and each charging bin of the charging assembly.
CN202010260555.5A 2020-04-03 2020-04-03 Charging device, charging assembly and battery replacement station Pending CN113492698A (en)

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CN202010260555.5A CN113492698A (en) 2020-04-03 2020-04-03 Charging device, charging assembly and battery replacement station
PCT/CN2021/085664 WO2021197495A1 (en) 2020-04-03 2021-04-06 Charging device, charging assembly, and battery replacement station

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010260555.5A CN113492698A (en) 2020-04-03 2020-04-03 Charging device, charging assembly and battery replacement station

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EP3626511B1 (en) * 2018-09-18 2023-03-08 ABB E-mobility B.V. Automatic connection system
CN109484219B (en) * 2018-11-06 2022-05-17 蔚来(安徽)控股有限公司 Socket assembly and charging rack
CN109713520B (en) * 2019-01-22 2023-12-01 上海蔚来汽车有限公司 Plug mechanism, plug device, battery rack and charging and replacing station
CN209526276U (en) * 2019-01-22 2019-10-22 上海蔚来汽车有限公司 Push-pull structure, plug device, battery carrier and electric charging station
CN109856554A (en) * 2019-04-22 2019-06-07 星云智能装备（昆山）有限公司 It is a kind of automatically to slotting mechanism and battery pack test device
CN110696782B (en) * 2019-09-05 2021-06-22 浙江吉智新能源汽车科技有限公司 Power conversion device with floating function

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