CN112582824A - Charging gun, charging pile, charging port, vehicle and charging system - Google Patents
Charging gun, charging pile, charging port, vehicle and charging system Download PDFInfo
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- CN112582824A CN112582824A CN201910865432.1A CN201910865432A CN112582824A CN 112582824 A CN112582824 A CN 112582824A CN 201910865432 A CN201910865432 A CN 201910865432A CN 112582824 A CN112582824 A CN 112582824A
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- 238000004891 communication Methods 0.000 claims description 34
- 238000003780 insertion Methods 0.000 claims description 31
- 230000037431 insertion Effects 0.000 claims description 31
- 210000001503 joint Anatomy 0.000 abstract description 10
- 230000007246 mechanism Effects 0.000 description 15
- 238000000034 method Methods 0.000 description 12
- 230000013011 mating Effects 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 3
- 230000006378 damage Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
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- 238000004519 manufacturing process Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
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- 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
- H01R13/02—Contact members
- H01R13/22—Contacts for co-operating by abutting
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- 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
-
- 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
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- 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
- H01R13/02—Contact members
-
- 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
- H01R13/625—Casing or ring with bayonet engagement
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- 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
- H01R13/639—Additional means for holding or locking coupling parts together, after engagement, e.g. separate keylock, retainer strap
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R24/00—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure
- H01R24/005—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure requiring successive relative motions to complete the coupling, e.g. bayonet type
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R2201/00—Connectors or connections adapted for particular applications
- H01R2201/26—Connectors or connections adapted for particular applications for vehicles
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- 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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- 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
- Y02T90/14—Plug-in electric vehicles
Abstract
The invention relates to the field of charging equipment, and discloses a charging gun, a charging pile, a charging port, a vehicle and a charging system, wherein the charging gun comprises a gun body (10), the gun body (10) is provided with a first end (11) used for being connected with a charging circuit and a second end (12) used for being connected with equipment to be charged, the second end (12) is provided with a charging terminal, and the charging terminal is one of a positive charging terminal and a negative charging terminal. The charging gun and the charging port of the invention are respectively provided with a charging terminal with single polarity, and double guns are needed to be used for charging during charging, wherein one charging gun is a charging anode, and the other charging gun is a charging cathode, so that the charging terminal has larger terminal joint surface and overcurrent capacity.
Description
Technical Field
The present invention relates to charging equipment, and in particular to a charging gun and a charging port. On the basis, the invention also relates to a charging pile and a vehicle. In addition, the invention also relates to a charging system.
Background
With the increasing severity of energy and environmental problems, new energy vehicles such as electric vehicles and the like are receiving more and more attention from people. For a long time, the electric automobile is frequently subjected to consumers' problems due to long charging time, and the development of the electric automobile industry is severely restricted. In this regard, it is common in the art to increase the charging power in order to shorten the charging time. This requires an increase in the cross-sectional area of the charging harness to cope with the current demand for large current.
However, in the process of charging by using the charging gun to plug the charging port of the electric vehicle, the charging harness with a larger cross section area is easy to pull out the charging gun from the charging port due to higher quality, so that structural damage and other potential safety hazards are caused. In addition, in the limited end face space of the charging gun, the available effective space of the charging terminal is small, and the overcurrent capacity is insufficient. In this case, it is difficult to effectively increase the charging power of the charging system.
Disclosure of Invention
The invention aims to solve the problem that a charging system in the prior art is low in charging power, and provides a charging gun, a charging port and a charging system, which are convenient for effectively improving the charging power.
In order to achieve the above object, an aspect of the present invention provides a charging gun including a gun body having a first end for connecting a charging line and a second end for connecting a device to be charged, the second end being provided with a charging terminal that is one of a positive charging terminal and a negative charging terminal.
Preferably, the charging terminal has a unique terminal engagement face and is capable of transmitting electric power to the device to be charged through the terminal engagement face.
Preferably, the second end of the gun body is provided with an insertion part for being inserted into and connected to a charging port of the device to be charged, the insertion part is columnar, and a free end face of the insertion part forms the terminal joint face.
Preferably, the second end of the gun body is provided with an insertion part for being connected to a charging port of the device to be charged in an insertion manner, the insertion part is annular, and the terminal joint surface is formed on the bottom surface of the cavity surrounded by the insertion part.
Preferably, the second end of the gun body is further provided with a communication terminal and/or a ground terminal extending from the bottom surface of the cavity.
Preferably, the second end of the gun body is provided with a plurality of first locking bosses and a plurality of clamping groove openings which are alternately arranged around the charging terminal, and the axial inner sides of the first locking bosses are formed into annular clamping grooves for being matched and locked with the device to be charged.
A second aspect of the present invention provides a charging pile including the charging guns described above arranged in pairs, one of the charging terminals being a positive charging terminal and the other being a negative charging terminal.
Preferably, this fill electric pile be equipped with be used for with wait the wireless communication module of charging equipment communication.
A third aspect of the present invention provides a charging port provided with a charging terminal that is one of a positive charging terminal and a negative charging terminal.
Preferably, the charging port has a unique terminal engagement face and is capable of receiving power from the charging gun through the terminal engagement face.
Preferably, the charging port is provided with an insertion groove for connecting the charging gun, the insertion groove is columnar, and a bottom surface of the insertion groove forms the terminal engaging surface.
Preferably, the charging port is provided with an annular insertion groove for connecting the charging gun and a terminal post surrounded by the insertion groove, and the terminal engagement surface is formed on a free end surface of the terminal post.
Preferably, the terminal post is formed with a communication port and/or a ground port.
Preferably, the charging port is provided with a lock ring surrounding the charging terminal, the lock ring being formed with a plurality of second lock bosses arranged circumferentially at intervals from each other and being drivable to rotate about a central axis of the lock ring.
A fourth aspect of the invention provides a vehicle having a power battery and the above-described charging ports arranged in pairs, wherein one of the charging terminals is a positive charging terminal and the other charging terminal is a negative charging terminal.
Preferably, the vehicle is provided with a wireless communication module for communicating with the charging post.
A fifth aspect of the present invention provides a charging system including charging guns arranged in pairs and charging ports arranged in pairs, wherein charging terminals of one of the charging guns and one of the charging ports are positive charging terminals corresponding to each other, and charging terminals of the other of the charging guns and the other of the charging ports are negative charging terminals corresponding to each other.
Through the technical scheme, the charging gun and the charging port respectively have the charging terminals with single polarity, double guns are used for charging during charging, one charging gun is a charging positive electrode, and the other charging gun is a charging negative electrode, so that the charging terminals have larger terminal joint surfaces and overcurrent capacity.
Drawings
Fig. 1 is a schematic view of a charging gun according to a preferred embodiment of the present invention;
FIG. 2 is a charging port for use with the charging gun of FIG. 1, according to a preferred embodiment of the present invention;
fig. 3 is a schematic view of a charging gun according to another preferred embodiment of the present invention;
FIG. 4 is a schematic view of a first locking arrangement of the charging gun of FIG. 3;
FIG. 5 is a charging port for use with the charging gun of FIG. 3, according to another preferred embodiment of the present invention;
FIG. 6 is an exploded view of the charging port of FIG. 5;
FIG. 7 is a schematic view of the locking ring of the charging port of FIG. 6;
FIG. 8 is a schematic view of the insertion of the charging gun and the charging port of the present invention;
fig. 9 is a block diagram of a charging system according to a preferred embodiment of the present invention.
Description of the reference numerals
1-a charging gun; 10-a gun body; 11-a first end; 12-a second end; 13, 23-terminal engagement face; 14-a plug-in part; 15-a communication terminal; 16-a ground terminal; 17-a first locking boss; 18-card slot opening; 19-a ring slot;
2-a charging port; 20-a locking ring; 20 a-a second locking boss; 20 b-outer gear ring; 21-a drive device; 22-a drive gear; 24-a plug groove; 25-a communication port; 26-a ground port; 27-terminal posts; 28-annular mounting groove; 29-a sliding bearing; 30-a ring body; 30 a-a notch; 31-sealing cover;
3-a wireless communication module; 4-a distribution box; 5-a power battery; 6-a charging cabinet; 7-a battery management system; 8-display module.
Detailed Description
In the present invention, the use of directional terms such as "upper, lower, left, right" generally means upper, lower, left, right as viewed with reference to the accompanying drawings, unless otherwise specified; "inner and outer" refer to the inner and outer relative to the profile of the components themselves. For example, referring to fig. 3 and 4, the axially inner side of the first lock boss 17 in the present invention, that is, the side of the first lock boss 17 closer to the gun body 10, is opposite to the side facing the direction of insertion into the charging port.
In traditional electric automobile charging system, no matter direct current charges or exchange charging, the rifle that charges that adopts and the mouth that charges all are provided with a plurality of terminals that charge, utilize its different polarity to carry out the single-gun and charge. In this case, the terminal engaging surface of each charging terminal is limited by the size and design structure of the charging gun and the charging port, the effective use area is small, and the overcurrent capacity is insufficient. In particular, in the case of high-power charging, a safety problem such as burnout of a charging terminal is likely to occur.
In this regard, the present invention provides a solution for dual gun charging such that each charging gun and charging port has a single polarity charging terminal. In the charging process, one of the charging guns and the charging port connected with the charging gun are used as a charging anode, and the other charging gun and the charging port are used as a charging cathode, so that the joint surface and the overcurrent capacity of the terminal can be remarkably increased, the effective use area of the butt joint part is increased, and the charging efficiency of the charging system is effectively improved on the basis of avoiding the problems of burning loss and the like caused by short circuit.
Although the polarity of the charging terminal is defined by the positive charging terminal and the negative charging terminal in the present invention, the polarity difference between the terminals is only briefly defined, and the charging method of the present invention is not limited to the dc charging method. For example, when the charging gun is used for ac charging, the charging terminal thereof may be assumed to be a positive electrode or a negative electrode at a certain instant. The charging gun in the conventional art includes a plurality of charging terminals that exhibit different terminal polarities at the instant, i.e., a part of the charging terminals exhibits a positive polarity and another part of the charging terminals exhibits a negative polarity, thereby realizing one-gun charging. In the present invention, the different terminals of the respective charging guns are either both positive or both negative at that instant, and charging is required by using the double gun.
The following illustrates, by way of example, various aspects of the present invention:
charging gun and charging port (I)
Referring to fig. 1, a charging gun 1 according to a preferred embodiment of the present invention includes a gun body 10, the gun body 10 having a first end 11 and a second end 12. Wherein, the gun body 10 can be provided with a handle and the like; the first end 11 can be connected with a charging circuit to be electrically connected to a charging cabinet and the like to obtain power; the second end 12 may be connected to a device to be charged, such as an electric car, to supply electric power to its power battery to effect charging.
The second end 12 of the charging gun 1 is provided with a columnar insertion portion 14, and the insertion portion 14 is insertable into an insertion groove 24 (see fig. 2) of the charging port 2 described later, and has a terminal engagement surface 13 formed on a free end surface. Therefore, the charging gun 1 can only be provided with one charging terminal, is electrically connected with a device to be charged through the only terminal joint surface 13, effectively utilizes the section of the second end 12 of the charging gun 1, and ensures the overcurrent capacity requirement during high-power charging through a large section.
In accordance with the charging gun 1, fig. 2 shows a charging port 2 of a preferred embodiment, and the charging port 2 is provided with a columnar insertion groove 24 for receiving the insertion portion 14 of the charging gun 1 and is formed with a terminal engagement surface 23 on the bottom surface. When the charging gun 1 is inserted into the charging port 2, the insertion portion 14 is inserted into the insertion groove 24 in the axial direction until the terminal engagement surface 13 of the charging gun 1 comes into contact with the terminal engagement surface 23 in the charging port 2, whereby current transmission is possible.
As can be seen from the illustration, the mating part 14 and the mating groove 24 are formed in a non-rotational body cylindrical configuration, thereby having a flat orientation (not numbered) to facilitate mating in a relatively fixed orientation for mating with a charging lock mechanism as described subsequently.
In the preferred embodiment, since each charging gun 1 and charging port 2 has a unique terminal-engaging surface, it is necessary to form a charging circuit by using two charging guns 1 at the same time, as only a charging positive electrode or a charging negative electrode during charging. Compared with a single gun charging mode in the prior art, the single gun charging device disclosed by the invention fully utilizes the butt joint plane of the charging gun and the charging port, can effectively increase the overcurrent area during charging, has a remarkably simplified structure, and is easy to plug and separate.
In another embodiment, a plurality of charging terminals may be formed in the charging gun 1 and the charging port 2, but the plurality of charging terminals have the same polarity, that is, all the charging terminals in the charging gun are one of the positive charging terminal and the negative charging terminal.
Charging gun and charging port (II)
Fig. 3 and 5 show a charging gun 1 and a charging port 2 according to another preferred embodiment of the present invention, respectively. Except for the difference between the portions of contact and the preferred embodiment, the portions of the gun body 10 and the first and second ends 11, 12 included therein, and the charging gun 1 and the charging port 2 including the terminal engaging surfaces 13,23, respectively, are not different.
In this preferred embodiment, the second end 12 of the gun body 13 is provided with a plug-in portion 14 for plug-in connection to a charging port of a device to be charged, the plug-in portion 14 being annular and having an outer peripheral profile identical to that of the plug-in portion of the preferred embodiment shown in fig. 1. The bottom surface of the cavity surrounded by the inserting part 14 is provided with the terminal joint surface 13, therefore, the charging gun 1 can only be provided with one charging terminal, the charging gun is electrically connected with a device to be charged through the only terminal joint surface 13, the section of the second end 12 of the charging gun 1 is effectively utilized, and the overcurrent capacity requirement during high-power charging is ensured through a large section.
Accordingly, the charging port 2 shown in fig. 5 is provided with a terminal post 27, the outer periphery of which terminal post 27 is formed into an annular insertion groove 24, and the annular insertion portion 14 of the charging gun 1 can be inserted into this insertion groove 24 while the terminal post 27 is inserted into the cavity surrounded by the insertion portion 14. The free end surfaces of the terminal posts 27 are formed with terminal engagement surfaces 23. When the charging gun 1 is inserted into the charging port 2, the insertion portion 14 is inserted into the insertion groove 24 in the axial direction until the terminal engagement surface 13 in the charging gun 1 comes into contact with the terminal engagement surface 23 of the charging port 2, whereby current transmission is possible.
In the preferred embodiment, since each charging gun 1 and charging port 2 has a unique terminal-engaging surface, it is necessary to form a charging circuit by using two charging guns 1 at the same time, as only a charging positive electrode or a charging negative electrode during charging. Compared with a single gun charging mode in the prior art, the invention fully utilizes the butt joint plane of the charging gun and the charging port, and can effectively increase the flow area during charging.
In another embodiment, a plurality of charging terminals may be formed in the charging gun 1 and the charging port 2, but the plurality of charging terminals have the same polarity, that is, all the charging terminals in the charging gun are one of the positive charging terminal and the negative charging terminal.
Further, as shown in fig. 3, in the preferred embodiment, a communication terminal 15 and a ground terminal 16 for connecting with a device to be charged may be provided at the second end 12 of the charging gun 1, and the communication terminal 15 and the ground terminal 16 may extend from the bottom surface of the cavity surrounded by the plug part 14 toward the opening direction; accordingly, as shown in fig. 5, the terminal post 27 may be formed with a communication port 25 and a ground port 26 for receiving the communication terminal 15 and the ground terminal 16, when the charging gun 1 is plugged into the charging port 2, the communication terminal 15 is inserted into the communication port 25 along with the insertion portion 14 inserted into the insertion groove 24 of the charging port 2, and the ground terminal 16 is inserted into the ground port 26, thereby facilitating communication between the charging device (e.g., a charging pile) and the device to be charged (e.g., an electric vehicle) and completing the charging process.
Charging locking mechanism
After the charging gun 1 is inserted into the charging port 2, the charging gun 1 needs to be locked by a charging locking mechanism (also called as "electric lock") to prevent the charging gun 1 from being accidentally disengaged. However, in the actual use process, often because of improper operation, the lockpin intensity is not enough, and operating personnel's pulling force can be taken out the rifle 1 that charges with electricity, leads to the lockpin rupture, causes the use potential safety hazard.
In a preferred embodiment, as shown in fig. 3 to 7, a charging locking mechanism is provided at a position where the charging gun 1 is connected to the charging port 2. It is to be understood that the charging locking mechanism provided by the present invention is not limited to the specific structure of the charging gun and the charging port shown in fig. 3 and 5, and may be applied to the charging gun and the charging port shown in fig. 1 and 2, and further may be applied to a conventional single gun charging system. The charge lock mechanism according to the preferred embodiment of the present invention will be described below mainly with reference to the examples shown in fig. 3 to 7.
The charging locking mechanism of the present invention includes a first locking structure provided on the charging gun 1 and a second locking structure provided on the charging port 2 of the device to be charged, the second locking structure being capable of cooperating with the first locking structure to prevent the charging gun 1 inserted into the charging port 2 from being pulled out from the charging port 2.
Specifically, as shown in fig. 3 and 4, the first locking structure includes a plurality of first locking bosses 17 and card slot openings 18 provided at the second end 12 of the charging gun 1, the first locking bosses 17 and the card slot openings 18 being alternately arranged in a circumferential direction around the charging terminal.
Accordingly, as shown in fig. 5 to 7, the first locking structure includes a locking ring 20, the locking ring 20 surrounds a plurality of second locking bosses 20a arranged circumferentially of the charging terminal, the plurality of second locking bosses 20a corresponding to the plurality of first locking bosses 17 and the card slot opening 18 in the first locking structure. Wherein, when inserting charging gun 1 to mouthful 2 in-process that charges, each second locking boss 20a can pass the draw-in groove opening 18 between two adjacent first locking bosses 17 along the axial (inserting the direction promptly), and then lock ring 20 rotates for making second locking boss 20a be located the inboard of first locking boss 17 to backstop this first locking boss 17 along the axial motion of drawing out the rifle direction, prevent charging gun 1 and follow and to pull out from charging mouthful 2.
From this, this locking mechanism that charges can exert the locking effort to the rifle 1 that charges in circumference, utilizes the axial backstop effect of the second locking boss 20a of the first locking boss 17 that circumference was arranged to prevent to charge rifle 1 and pull out from mouthful 2 that charges, can bear the charging harness that is heavier relatively, is convenient for increase charging harness sectional area and implements high-power charging, reduces because of drawing out the rifle by force and leads to the risk of structural damage and incident.
In other embodiments, the specific composition of the first and second locking structures described herein and below may be interchanged. In other words, the lock ring 20 that can be driven to be locked and unlocked by rotation may be provided on the charging gun 1, and the first locking projection 17 or the like that is engaged with the second locking projection 20a on the lock ring 20 may be provided on the charging port 2, and also reliable locking of the charging gun 1 may be achieved. In contrast, providing the lock ring 20 at the charging port 2 can avoid the difficulty in operation due to the complicated structure and heavy weight of the charging gun 1, particularly in the case where the driving device 21 and the like described in the following preferred embodiments are provided.
In the illustrated preferred embodiment, the first locking boss 17 provided on the charging gun 1 is projected radially inward. As shown in fig. 4, the first locking structure has a substantially annular body, and a plurality of first locking projections 17 are provided at an axially outer end of the annular body and spaced apart from each other to form a slot opening 18. Thus, the axially inner side of the first locking projection 17 may be formed as a ring groove 19 for receiving the second locking projection 20a and allowing it to rotate with the locking ring 20 to be locked or unlocked.
In the locking ring 20 shown in fig. 7, the second locking projection 20a projects radially outward, can pass through the slot opening 18 of the first locking structure, and rotates along the annular slot 19 to the axially inner side of the first locking projection 17 to create an axial stop for the first locking projection 17 to prevent the withdrawal of the charging gun 1. After the charging is completed, the lock ring 20 is rotated reversely so that the second locking projection 20a is aligned with the card slot opening 18, thereby allowing the charging gun 1 to be pulled out.
In other embodiments, the first locking projection 17 may be provided to protrude radially outward, and the second locking projection 20a may be provided to protrude radially inward, so that the locking of the charging gun 1 may be also achieved by the rotation of the locking ring 20.
In order to drive the locking ring 20 to rotate around its own central axis, a driving force may be applied manually or electrically to complete the process of locking and unlocking the charging gun 1. In a preferred embodiment, the second locking mechanism comprises a drive means 21, for example an electric motor, in order to achieve automatic locking of the charging gun 1.
The driving means 21 may be provided in various forms and drive the rotation of the locking ring 20 by means of suitable transmission members. In the preferred embodiment shown, the locking ring 20 is formed with an outer ring gear 20b, the outer ring gear 20b being axially disposed with second locking projections 20a, the second locking projections 20a being axially outward of the outer ring gear 20b and spaced from the mating teeth thereon. The drive 21 is thus connected to the drive gear 22 and drives the locking ring 20 in rotation by the drive gear 22 engaging with the outer ring gear 20b of the locking ring 20. With the arrangement, the charging gun fully utilizes the limited space of the charging port 2 surrounding the charging terminal, has compact structural arrangement, is easy to manufacture, disassemble and assemble all parts, and realizes reliable locking of the charging gun at lower cost.
With continued reference to the exploded view of fig. 6, the second locking mechanism of the charging port may be provided with an annular mounting groove 28, and the locking ring 20 is pivotally mounted in the annular mounting groove 28 by a sliding bearing 29. According to the invention, the sliding bearing 29 is adopted to install the locking ring 20, so that a larger radial space can be avoided, a larger area is reserved for arranging the charging terminals, and the charging efficiency is improved.
In addition, the charging port may be provided with a ring body 30 surrounding the outer ring gear 20b, and the ring body 30 may be attached to the charging port body by a fastener such as a bolt, for example. Since the drive gear 22 needs to mesh with the outer ring gear 20b on the radially outer side, a notch 30a may be formed in the ring body 30, and the drive gear 22 may be disposed in the notch 30a and mesh with the outer ring gear 20 b. Axially outward of the drive gear 22 and the outer ring gear 20b, a cover 31 may also be provided to at least partially cover the drive gear 22 and the outer ring gear 20 b.
Through the arrangement of the ring body 30 and the sealing cover 31, the driving gear 22 and the outer gear ring 20b can be at least partially prevented from being exposed outwards, so that the situation that an operator accidentally contacts the second locking structure to cause injury is avoided, and meanwhile, sundries can be prevented from entering the meshing position to influence the reliable locking of the charging gun.
Charging system
Referring to fig. 8 and 9, the present invention provides a charging system including a charging gun 1 and a charging port 2.
In one aspect, the charging system may include charging guns 1 arranged in pairs and charging ports 2 arranged in pairs, wherein the charging terminals of one of the charging guns and one of the charging ports are positive charging terminals corresponding to each other, and the charging terminals of the other of the charging guns and the other of the charging ports are negative charging terminals corresponding to each other. Therefore, the charging system utilizes the double guns to form a charging loop, and can realize high-power charging with larger overcurrent capacity.
On the other hand, the charging gun 1 and the charging port 2 can be respectively provided with a first locking structure and a second locking structure in the charging locking mechanism, so that a larger locking force can be provided, the radial size and the overcurrent capacity of the charging harness can be increased conveniently, and the charging efficiency and the charging safety can be improved.
Charger peg (charging equipment)
Referring to fig. 9, the present invention provides a charging pile, which may include a charging cabinet 6 and a charging gun 1 connected to the charging cabinet 6. Here battery charging outfit can be for charging rifle itself, also can be for being equipped with the stake of charging rifle.
In a preferred embodiment, the charging post comprises charging guns 1 arranged in pairs, one of which is a positive charging terminal and the other of which is a negative charging terminal.
In another preferred embodiment, the charging gun 1 in the charging pile may be provided with a first locking structure of the aforementioned charging locking mechanism, thereby being locked with a charging port provided with a second locking structure.
In the foregoing description of the various embodiments, the charging gun 1 shown in fig. 3 and the charging port 2 shown in fig. 5 communicate with, for example, an electric vehicle through the communication terminal 15 and the communication port 15, so as to control the charging process. In the embodiment shown in fig. 1 and 2, the second end 12 of the charging gun 1 is provided with only a charging terminal and no communication terminal. In view of the above, the present invention provides a wireless communication method.
Specifically, as shown in fig. 9, the charging cabinet 6 of the charging pile may be provided with a wireless communication module 3 for communicating with the device to be charged; accordingly, a device to be charged, for example an electric vehicle, may also be provided with the wireless communication module 3. Typically, the wireless communication module 3 may be a WiFi module. This makes it possible to omit the physical communication structure between the charging gun 1 and the charging port 2.
Vehicle with a steering wheel
Another aspect of the present invention also provides a vehicle including the power battery 5 and the aforementioned charging port 2. A distribution box 4 may be provided between the charging port 2 and the power battery 5 to match the power input by the charging device to the characteristics of the power battery 5. In addition, the vehicle may be provided with a Battery Management System (BMS)7, a display module 8, and the like. Corresponding to charging the wireless communication module 3 in electric pile, also can be equipped with wireless communication module 3 on this vehicle.
In a preferred embodiment, the vehicle of the invention includes charging ports 2 arranged in pairs, one of which is a positive charging terminal and the other of which is a negative charging terminal.
In another preferred embodiment, the charging port 2 of the vehicle may be provided with a second locking structure of the aforementioned charging locking mechanisms, whereby the charging gun 1 provided with the first locking structure may be locked.
Charging operation process
In connection with the embodiment shown in fig. 9, the present invention accomplishes the charging operation by the following steps:
s1, pulling out a charging gun 1 from a charging cabinet 6 to generate a gun pulling signal, so that a wireless communication module 3 of the charging pile is powered on and starts to work; the cover body of the charging port 2 is opened, a microswitch of the charging illuminating lamp is triggered to generate an uncovering signal, so that the wireless communication module 3 of the vehicle is powered on and starts to work;
s2, inserting the charging gun 1 into the charging port 2, enabling the charging pile to start to communicate with a wireless communication module 3 of the vehicle, controlling a charging locking mechanism to act, and locking the charging gun 1;
s3, detecting the whole vehicle, pre-charging, communicating in real time and preparing for charging;
s4, entering a charging mode to start charging in a locking, pre-charging and communication fault-free state;
s5, communication is kept in the charging process, if abnormity occurs, charging is stopped, and fault information is displayed on the display module 8; after charging is completed, the charging locking mechanism is enabled to act according to the control signal so as to unlock the charging gun 1.
The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings, but the present invention is not limited thereto. Within the scope of the technical idea of the invention, numerous simple modifications can be made to the technical solution of the invention, including combinations of the individual specific technical features in any suitable way. The invention is not described in detail in order to avoid unnecessary repetition. Such simple modifications and combinations should be considered within the scope of the present disclosure as well.
Claims (17)
1. A charging gun, comprising a gun body (10), the gun body (10) having a first end (11) for connecting a charging circuit and a second end (12) for connecting a device to be charged, the second end (12) being provided with a charging terminal, characterized in that the charging terminal is one of a positive charging terminal and a negative charging terminal.
2. The charging gun according to claim 1, wherein the charging terminal has a single terminal engagement surface (13) and is capable of transmitting power to the device to be charged through the terminal engagement surface (13).
3. Charging gun according to claim 2, characterized in that the second end (12) of the gun body (10) is provided with a plug-in part (14) for plug-in connection to a charging port of the device to be charged, the plug-in part (14) being cylindrical and a free end face of the plug-in part (14) being formed as the terminal engagement face (13).
4. The charging gun according to claim 2, wherein the second end (12) of the gun body (10) is provided with a plug-in portion (14) for plug-in connection to a charging port of the device to be charged, the plug-in portion (14) is annular, and the terminal engagement surface (13) is formed on a bottom surface of a cavity surrounded by the plug-in portion (14).
5. Charging gun according to claim 4, characterized in that the second end (12) of the gun body (10) is further provided with a communication terminal (15) and/or a ground terminal (16) extending from the bottom surface of the cavity.
6. Charging gun according to any of claims 1-5, characterized in that the second end (12) of the gun body (10) is provided with a plurality of first locking projections (17) and slot openings (18) alternately arranged around the charging terminal, the axially inner sides of the first locking projections (17) being formed as annular slots (19) for co-locking with the device to be charged.
7. A charging pile comprising charging guns according to any one of claims 1 to 6 arranged in pairs, one of which has a positive charging terminal and the other has a negative charging terminal.
8. Charging pile according to claim 7, characterised in that it is provided with a wireless communication module (3) for communicating with the equipment to be charged.
9. A charging port provided with a charging terminal, characterized in that the charging terminal is one of a positive charging terminal and a negative charging terminal.
10. A charging port as claimed in claim 9, characterized in that the charging port has a single terminal engagement surface (23) and is capable of receiving power from the charging gun through the terminal engagement surface (23).
11. A charging port according to claim 10, wherein said charging port is provided with a plug groove (24) for connecting said charging gun, said plug groove (24) is columnar, and a bottom surface of said plug groove (24) is formed as said terminal engagement surface (23).
12. A charging port according to claim 10, characterized in that the charging port is provided with an annular insertion groove (24) for connecting the charging gun and a terminal post (27) surrounded by the insertion groove (24), the terminal engagement surface (23) being formed on a free end surface of the terminal post (27).
13. A charging port according to claim 12, characterized in that the terminal post (27) is formed with a communication port (25) and/or a ground port (26).
14. A charging port according to any one of claims 9 to 13, characterized in that the charging port is provided with a lock ring (20) surrounding the charging terminal, the lock ring (20) being formed with a plurality of second lock projections (20a) arranged circumferentially at a spacing from each other and being drivable to rotate about a central axis of the lock ring (20).
15. A vehicle characterized by having a power battery and the charging port according to any one of claims 9 to 14 arranged in pairs, wherein the charging terminal of one is a positive charging terminal and the charging terminal of the other is a negative charging terminal.
16. Vehicle according to claim 15, characterized in that it is provided with a wireless communication module (3) for communicating with the charging post.
17. A charging system comprising charging guns arranged in pairs and charging ports arranged in pairs, wherein the charging terminals of one of the charging guns and one of the charging ports are positive charging terminals corresponding to each other, and the charging terminals of the other of the charging guns and the other of the charging ports are negative charging terminals corresponding to each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910865432.1A CN112582824A (en) | 2019-09-12 | 2019-09-12 | Charging gun, charging pile, charging port, vehicle and charging system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910865432.1A CN112582824A (en) | 2019-09-12 | 2019-09-12 | Charging gun, charging pile, charging port, vehicle and charging system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112582824A true CN112582824A (en) | 2021-03-30 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910865432.1A Pending CN112582824A (en) | 2019-09-12 | 2019-09-12 | Charging gun, charging pile, charging port, vehicle and charging system |
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| Country | Link |
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| CN (1) | CN112582824A (en) |
Cited By (1)
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| CN113540894A (en) * | 2021-06-24 | 2021-10-22 | 合肥吉顺新能源科技有限公司 | Charging gun device with effective anti-drop function |
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Application publication date: 20210330 |