CN110654258A - Charging interface and charging plug - Google Patents
Charging interface and charging plug Download PDFInfo
- Publication number
- CN110654258A CN110654258A CN201810698512.8A CN201810698512A CN110654258A CN 110654258 A CN110654258 A CN 110654258A CN 201810698512 A CN201810698512 A CN 201810698512A CN 110654258 A CN110654258 A CN 110654258A
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- charging
- guide rail
- heat dissipation
- charging plug
- plug
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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
- H01R13/6205—Two-part coupling devices held in engagement by a magnet
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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
- H01R13/629—Additional means for facilitating engagement or disengagement of coupling parts, e.g. aligning or guiding means, levers, gas pressure electrical locking indicators, manufacturing tolerances
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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
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/66—Structural association with built-in electrical component
- H01R13/665—Structural association with built-in electrical component with built-in electronic circuit
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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
- H01R13/66—Structural association with built-in electrical component
- H01R13/70—Structural association with built-in electrical component with built-in switch
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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
- H01R29/00—Coupling parts for selective co-operation with a counterpart in different ways to establish different circuits, e.g. for voltage selection, for series-parallel selection, programmable connectors
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20009—Modifications to facilitate cooling, ventilating, or heating using a gaseous coolant in electronic enclosures
- H05K7/20136—Forced ventilation, e.g. by fans
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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
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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
- 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
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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
- 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
- Y02T90/16—Information or communication technologies improving the operation of electric vehicles
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- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The invention belongs to the technical field of charging equipment, and particularly relates to a charging interface and a charging plug. The charging interface comprises a charging socket and a first heat dissipation air channel arranged in the charging socket, wherein the first heat dissipation air channel is connected with an air blower, one end of the first heat dissipation air channel corresponds to a connecting terminal of the charging socket, when the charging socket is in splicing fit with a charging plug, the other end of the first heat dissipation air channel is communicated with a second heat dissipation air channel in the charging plug, and the air blower blows and dissipates heat to the connecting terminal of the charging socket through the first heat dissipation air channel and blows and dissipates heat to the connecting terminal of the charging plug through the second heat dissipation air channel. According to the charging interface, in the charging process, the heat transfer rate of the connection part of the charging plug and the charging socket is improved, the temperature of the connection part of the charging plug and the charging socket is reduced, and the charging interface and the charging plug are prevented from being damaged.
Description
Technical Field
The invention belongs to the technical field of charging equipment, and particularly relates to a charging interface and a charging plug.
Background
With the increasing importance of human beings on ecological environment and the increasing exhaustion of petrochemical resources, new energy automobiles are widely popularized and used in all countries in the world. In recent years, the electric automobile industry in China shows a blowout situation, but various problems to be solved urgently appear in the technical field of electric automobiles, wherein the related problem that a charging plug charges an electric automobile is particularly obvious.
The existing charging plug is characterized in that three servo motors fixed on three guide rails respectively control a charging plug main body to move left and right, front and back and up and down, communication between a vehicle and a pile is carried out through Bluetooth, after a vehicle owner opens a charging interface, a camera in the charging plug is captured and positioned, the charging interfaces are mutually butted, and communication of a communication module is kept.
The charging plug in this form has a large space occupied by the guide rails, and has a high requirement on positioning, and meanwhile, the communication equipment is required to have a high communication speed to convey information of the interface in real time. On the premise that the space utilization rate of the charging equipment is high, various functional modules are added on the charging plug, and the manufacturing cost and the maintenance cost of the charging plug are increased.
Secondly, the weight of the charging plug is only borne by the charging interface, and the excessive weight of the charging plug can cause damage to the charging interface.
Finally, the charging interface of the electric automobile is in the gun plugging and unplugging process, and due to the technical problems that the charging interface abnormally generates heat caused by misoperation of an operator, the charging process is influenced by charging current and charging time, the temperature of the interface between the charging interface and the charging plug obviously rises, and the like, the charging plug and the charging interface can be damaged.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the charging interface and the charging plug are provided aiming at the technical defects that the temperature rise of the interface between the existing charging plug and a battery is obvious in the charging process and the abnormal heating of the charging interface is caused by improper operation of an operator.
In order to solve the above technical problems, in one aspect, the present invention provides a charging interface, including a charging socket and a first heat dissipation air duct disposed in the charging socket, wherein the first heat dissipation air duct is connected to an air blower;
one end of the first heat dissipation air channel corresponds to the connecting terminal of the charging socket, when the charging socket is matched with the charging plug in a splicing manner, the other end of the first heat dissipation air channel is communicated with the second heat dissipation air channel in the charging plug, the air blower blows and dissipates heat to the connecting terminal of the charging socket through the first heat dissipation air channel, and blows and dissipates heat to the connecting terminal of the charging plug through the second heat dissipation air channel.
Optionally, the first heat dissipation air duct includes a first air duct and a second air duct, the first air duct has a first air inlet and a first air outlet, and the second air duct has a second air inlet and a second air outlet;
the first air inlet is communicated with an air outlet of the air blower, the first air outlet faces towards a connecting terminal of the charging socket, when the charging socket is matched with the charging plug in an inserting mode, the second air inlet is communicated with the air outlet of the air blower, and the second air outlet is communicated with a second heat dissipation air channel arranged in the charging plug.
Optionally, the charging interface further includes a guide rail and a guide rail expansion device, the second air duct is disposed in the guide rail, the guide rail expansion device is configured to drive the guide rail to slide between a first position and a second position, the guide rail is accommodated in the charging interface when in the first position, the guide rail extends out of the charging interface when in the second position and is temporarily fixed to the charging plug, the guide rail can slide from the second position to a third position between the first position and the second position under the driving of the guide rail expansion device, the charging socket is in plug-in fit with the charging plug when in the third position, and the second air outlet is communicated with the second heat dissipation air duct when in the process that the guide rail slides from the second position to the third position.
Optionally, the guide rail telescoping device includes a first housing, a first motor and a first transmission mechanism, the first motor is disposed on an outer side wall of the first housing, a first guide groove is disposed on the first housing, the guide rail is slidably inserted into the first guide groove, an input side of the first transmission mechanism is connected with an output shaft of the first motor, and an output side of the first transmission mechanism is connected with the guide rail.
Optionally, the charging interface further includes a locking device, and the locking device can lock the charging plug when the charging socket is in plug-in fit with the charging plug.
Optionally, the locking device includes a driving mechanism, a first clamping rod and a second clamping rod, a mounting groove is formed on the charging socket, the first clamping rod and the second clamping rod are oppositely disposed in the mounting groove, and the driving mechanism is configured to drive the first clamping rod and the second clamping rod to rotate in a direction of clamping the charging plug.
Optionally, the driving mechanism includes a second motor, a main push rod, a triangular rotating block, a first secondary push rod and a second secondary push rod, the main push rod is connected to an output shaft of the second motor and can move along with the rotation of the output shaft of the second motor, one end of the main push rod is hinged to a first end of the triangular rotating block, one end of the first secondary push rod is hinged to a second end of the triangular rotating block, the other end of the first secondary push rod is hinged to a first connection position with the first clamping rod, one end of the second secondary push rod is hinged to a third end of the triangular rotating block, and the other end of the second secondary push rod is hinged to a second connection position with the second clamping rod;
the first clamping rod and the charging socket are rotatably connected to a third connecting position, the second clamping rod and the charging socket are rotatably connected to a fourth connecting position, the third connecting position is located above the first connecting position, and the fourth connecting position is located below the second connecting position.
Optionally, one end of the guide rail, which is temporarily fixed to the charging plug, is provided with a first magnetic attraction component.
On the other hand, another embodiment of the present invention further provides a charging plug adapted to the charging interface provided in the above embodiment, a second heat dissipation air duct is disposed in the charging plug, an air outlet of the second heat dissipation air duct faces the connection terminal of the charging plug, and when the charging socket is in plug-in fit with the charging plug, an air inlet of the second heat dissipation air duct is communicated with the other end of the first heat dissipation air duct.
In another aspect, a further embodiment of the present invention further provides a charging plug adapted to the charging interface provided in the foregoing embodiment, the charging plug is internally provided with a second heat dissipation air duct, the second heat dissipation air duct has a third air inlet and a third air outlet, a guide rail connector is arranged on one side of the charging plug facing the charging socket, the third air inlet is arranged in the guide rail connector, the third air outlet faces a connection terminal in the charging plug, the guide rail is temporarily fixed in the guide rail connector in the second position, and the third air inlet is communicated with the second air outlet arranged in the charging interface in a process that the guide rail slides from the second position to the third position.
Optionally, be provided with in the guide rail connector and inhale the part with the first magnetism of setting in the guide rail attracts the second magnetism of part inter attraction, the guide rail with the charging plug passes through first magnetism inhale the part with the appeal realization of part is temporarily fixed is inhaled to the second magnetism.
In the charging interface of the embodiment, one end of the first heat dissipation air duct is arranged corresponding to the connection terminal of the charging socket, in the charging process, the charging plug is in plug-in fit with the charging socket, the other end of the first heat dissipation air duct is communicated with the second heat dissipation air duct in the charging plug, air sucked by the air blower can blow towards the charging terminal of the charging socket through the first heat dissipation air duct and blow towards the charging terminal of the charging plug through the first heat dissipation air duct and the second heat dissipation air duct, so that the heat transfer rate of the connection part of the charging plug and the charging socket is improved, the temperature of the connection part of the charging plug and the charging socket is reduced, and the damage to the charging interface and the charging plug is avoided.
Drawings
Fig. 1 is a schematic diagram of a charging interface provided in a first embodiment of the present invention;
fig. 2 is a schematic structural diagram of a charging socket of the charging interface according to the first embodiment of the present invention;
fig. 3 is a schematic structural diagram of a rail expansion device of the charging interface according to the first embodiment of the present invention;
fig. 4 is a schematic structural diagram of a guide rail of a charging interface provided by the first embodiment of the invention;
fig. 5 is a schematic structural diagram of a locking device of the charging interface according to the first embodiment of the present invention;
fig. 6 is a schematic structural diagram of a blower of a charging interface provided by the first embodiment of the invention;
fig. 7 is a schematic structural diagram of an ac-dc charging conversion module of the charging interface according to the first embodiment of the present invention;
fig. 8 is a schematic structural diagram of a charging plug according to a second embodiment of the present invention;
fig. 9 is a perspective view of a charging interface provided in the first embodiment of the present invention mated with a charging plug provided in the second embodiment;
fig. 10 is a schematic view of the charging interface provided by the first embodiment of the present invention being mated with the charging plug provided by the second embodiment.
The reference numerals in the specification are as follows:
1. a blower; 11. an air inlet pipe in the box; 12. a guide rail air inlet pipe; 13. an air duct control switch;
2. a first air duct; 21. a first air outlet;
3. a second air duct; 31. a second air inlet; 32. a second air outlet;
4. a charging socket; 41. a second housing; 411. mounting grooves; 42. a first power transfer copper plate; 43. a second power transfer bronze plate; 44. a third power transfer bronze plate; 45. a fourth power transfer bronze plate;
5. a guide rail; 51. a jack;
6. a guide rail expansion device; 61. a first housing; 611. a first guide groove; 612. a first through hole; 613. a second through hole; 62. a first motor;
7. a locking device; 71. a drive mechanism; 711. a second motor; 712. a main push rod; 713. a triangular turning block; 714. a first push rod; 715. pushing the rod for the second time; 716. a first fixing lever; 717. a second fixing bar; 72. a first clamping bar; 721. a first connection location; 722. a third connection location; 73. a second clamping bar; 731. a second connection location; 732. a fourth connection location;
8. an AC/DC charging conversion module; 81. a first connecting switch; 82. a second connection switch;
10. a charging plug; 101. a second heat dissipation air duct; 102. a rail connector; 1021. a second guide groove; 103. fixing a column;
20. a box body; 201. and a third guide groove.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
First embodiment
As shown in fig. 1 to 7 and 9, a first embodiment of the present invention provides a charging interface, including a charging socket 4 and a first heat dissipation air duct disposed in the charging socket 4, where the first heat dissipation air duct is connected to an air blower 1, one end of the first heat dissipation air duct is disposed corresponding to a connection terminal of the charging socket 4, when the charging socket 4 is in plug-in fit with a charging plug 10, the other end of the first heat dissipation air duct is communicated with a second heat dissipation air duct 101 in the charging plug 10, and the air blower 1 blows air to dissipate heat from the connection terminal of the charging socket 4 through the first heat dissipation air duct, and blows air to dissipate heat from the connection terminal of the charging plug 10 through the second heat dissipation air duct 101.
In the charging interface of the embodiment, one end of the first heat dissipation air duct is arranged corresponding to the connection terminal of the charging socket 4, in the charging process, the charging plug 10 is in plug-in fit with the charging socket 4, the other end of the first heat dissipation air duct is communicated with the second heat dissipation air duct 101 in the charging plug 10, air sucked by the air blower 1 can blow to the charging terminal of the charging socket 4 through the first heat dissipation air duct and blow to the charging terminal of the charging plug 10 through the first heat dissipation air duct and the second heat dissipation air duct 101, so that the heat transfer rate of the connection part of the charging plug 10 and the charging socket 4 is improved, the temperature of the connection part of the charging plug 10 and the charging socket 4 is reduced, and the charging interface and the charging plug 10 are prevented from being damaged.
In this embodiment, the first heat dissipation air duct includes a first air duct 2 and a second air duct 3, the first air duct 2 has a first air inlet and a first air outlet 21, the second air duct 3 has a second air inlet 31 and a second air outlet 32, the first air inlet is communicated with the air outlet of the air blower 1, the first air outlet 21 faces the connection terminal of the charging socket 4, when the charging socket 4 is plugged and mated with the charging plug 10, the second air inlet 31 is communicated with the air outlet of the air blower 1, and the second air outlet 32 is communicated with the second heat dissipation air duct 101 in the charging plug 10.
As shown in fig. 3 and 4, the charging interface further includes a guide rail 5 and a guide rail expansion device 6, the second air duct 3 is disposed in the guide rail 5, the guide rail expansion device 6 is used for driving the guide rail 5 to slide between a first position and a second position, the guide rail 5 is accommodated in the charging interface when in the first position, the guide rail 5 extends out of the charging interface and is temporarily fixed with the charging plug 10 when in the second position, the guide rail 5 can slide from the second position to a third position between the first position and the second position under the driving of the guide rail expansion device 6, the charging socket 4 is in plug-in engagement with the charging plug 10 when the guide rail is in the third position, the second air outlet 32 is communicated with the second heat dissipation air duct 101 in the process that the guide rail slides from the second position to the third position. The guide rail 5 is pre-aligned with the charging plug 10 in the second position, then, in the process that the guide rail 5 slides from the second position to the third position, the charging plug 10 moves along with the guide rail 5, and when the third position is reached, the charging plug 10 is just plugged into the charging socket 4, so that the charging plug 10 and the charging socket 4 are precisely butted. Avoid electric automobile's the interface that charges at plug rifle in-process, because the damage of the interface that leads to charging plug and charging that operating personnel's misoperation leads to.
As shown in fig. 3 and 4, the guide rail retracting device 6 includes a first housing 61, a first motor 62, and a first transmission mechanism (not shown in the figure), the first motor 62 is disposed on an outer side wall of the first housing 61, the first housing 61 is provided with a first guide groove 611, the guide rail is slidably inserted into the first guide groove 611, an input side of the first transmission mechanism is connected to an output shaft of the first motor 62, and an output side of the first transmission mechanism is connected to the guide rail 5.
In this embodiment, the first transmission mechanism includes a first gear sleeved on the output shaft of the first motor 62 and a first chain fixedly connected to the guide rail 5, the guide rail is driven by the rotation of the output shaft of the first motor 62 through the transmission of the first gear and the first chain to slide, and the extending direction of the first chain is the same as the extending direction of the guide rail 5.
The invention is not particularly limited to the implementation form of the first transmission mechanism.
As shown in fig. 2 to 6, the first air duct 2 is disposed in the first housing 61, the blower 1 is disposed on the outer side wall of the first housing 61, an air outlet of the blower 1 is connected to an in-box air inlet pipe 11 and a guide rail air inlet pipe 12, the first housing 61 is provided with a first through hole 612 and a second through hole 613, the in-box air inlet pipe 11 is inserted into the first through hole 612, the guide rail air inlet pipe 12 is inserted into the second through hole 613, the in-box air inlet pipe 11 is communicated with the first air inlet, and the guide rail air inlet pipe 12 is communicated with the second air inlet 31 when the charging socket 4 is inserted into and mated with the charging plug 10. An air duct control switch 13 arranged on the blower 1 can adjust the power of the blower 1 according to the requirement and control the opening or closing of the air inlet pipe 11 in the box and the air inlet pipe 12 on the guide rail.
As shown in fig. 1 and 5, the charging interface further includes a locking device 7, and the locking device 7 can lock the charging plug 10 when the charging socket 4 is in plug-in fit with the charging plug 10.
As shown in fig. 2 and 5, the locking device 7 includes a first driving mechanism 71, a first clamping rod 72 and a second clamping rod 73, the charging socket 4 includes a second housing 41, a mounting slot 411 is formed on the second housing 41, the first clamping rod 72 and the second clamping rod 73 are oppositely disposed in the mounting slot 411, and the first driving mechanism 71 is used for driving the first clamping rod 72 and the second clamping rod 73 to move and rotate in a direction of clamping the charging plug 10.
The driving mechanism 71 includes a second motor 711, a main push rod 712, a triangular rotating block 713, a first sub push rod 714 and a second sub push rod 715, one end of the main push rod 712 is connected to the output shaft of the second motor 711 and can move along with the rotation of the output shaft of the second motor 711, the other end of the main push rod 712 is hinged to the first end of the triangular rotating block 713, one end of the first sub push rod 714 is hinged to the second end of the triangular rotating block 713, the other end of the first sub push rod 714 is hinged to the first connecting position 721 together with the first clamping rod 72, one end of the second sub push rod 715 is hinged to the third end of the triangular rotating block 713, the other end of the second sub push rod 715 is hinged to the second connecting position 731 together with the second clamping rod 73, and the first clamping rod 72 is rotatably connected to the second housing 41 at the third connecting position 722, the second clamping lever 73 is pivotally connected to the second housing 41 at a fourth connecting position 732, the third connecting position 722 being located above the first connecting position 721, and the fourth connecting position 732 being located below the second connecting position 731.
As shown in fig. 5, the first clamping rod 72 is pivotally connected to the second housing 41 at a third connection position 722 by a first fixing rod 716, and the second clamping rod 73 is pivotally connected to the second housing 41 at a fourth connection position 732 by a second fixing rod 717. The first fixing rod 716 and the second fixing rod 717 are fixed on the second housing 41, the first clamping rod 72 is rotatably sleeved on the first fixing rod 716, and the second clamping rod 73 is rotatably sleeved on the second fixing rod 717.
As shown in fig. 5, the first clamping rod 72 is closer to the second motor 711 than the second clamping rod 73, the first clamping rod 72 has a first arc-shaped structure, a center of the first arc-shaped structure is away from the second motor 711, the second clamping rod 73 has a second arc-shaped structure, a center of the second arc-shaped structure is toward the second motor 711, the first arc-shaped structure and the second arc-shaped structure are oppositely disposed in the mounting slot 411, when the second motor 711 drives the main push rod 712 to move in a direction close to the second motor 711, the first sub push rod 714 pushes the first clamping rod 72 to move in a direction away from the second motor 711, and the second sub push rod 715 pushes the second clamping rod 73 to move in a direction close to the second motor 711, that is, the first clamping rod 72 and the second clamping rod 73 move in a direction clamping the second housing 41, the first arc-shaped structure and the second arc-shaped structure clamp the charging plug 10, at this time, the charging plug 10 is supported by the guide rail 5, the first clamping rod 72 and the second clamping rod 73, and the technical problem of damage to a charging interface caused by overweight of the charging plug 10 is solved. When the second motor 711 drives the main push rod 712 to move away from the second motor 711, the first push rod 714 pushes the first clamping rod 72 to move close to the second motor 711, and the second push rod 715 pushes the second clamping rod 73 to move away from the second motor 711, that is, the first clamping rod 72 and the second clamping rod 73 move away from the second housing 41, and the first arc-shaped structure and the second arc-shaped structure release the second housing 41. The locking device 7 clamps or loosens the charging plug 10 through the second motor 711, so that the charging plug 10 is prevented from falling off due to the fact that the charging plug 10 is not required to be tightly matched with the charging socket 4, and the technical problem that the charging interface is difficult to plug and unplug due to the fact that the charging plug 10 is solved.
However, in other embodiments, the positions of the first clamping rod 72 and the second clamping rod 73 may be interchanged, and the up-down relationship between the first connecting position 721 and the third connecting position 722 and the up-down relationship between the second connecting position 731 and the fourth connecting position 732 may be interchanged, as long as the up-down relationship between the first connecting position 721 and the third connecting position 722 and the up-down relationship between the second connecting position 731 and the fourth connecting position 732 are opposite to each other, that is, when the second motor 711 moves the main push rod 712, the first clamping rod 72 and the second clamping rod 73 move in opposite directions.
As shown in fig. 5, the main push rod 712 is connected to the output shaft of the second motor 711 through a second transmission mechanism, the second transmission mechanism includes a second gear sleeved on the output shaft of the second motor 711 and a second chain fixedly connected to the main push rod 712, and the rotation of the output shaft of the second motor 711 drives the main push rod 712 to move through the transmission of the second gear and the second chain.
The invention is not particularly limited to the implementation form of the first transmission mechanism.
As shown in fig. 1 to 10, the charging interface further includes an ac/dc charging conversion module 8 for switching a current input mode of the charging socket 4 between an ac input and a dc input, the ac/dc charging conversion module 8 includes a first connection switch 81 and a second connection switch 82, the charging socket 4 further includes a first power transmission copper plate 42, a second power transmission copper plate 43, a third power transmission copper plate 44, and a fourth power transmission copper plate 45 disposed in the second housing 41, the first connection switch 81 is used for connecting and disconnecting the first power transmission copper plate 42 and the second power transmission copper plate 43, and the second connection switch 82 is used for connecting and disconnecting the third power transmission copper plate 44 and the fourth power transmission copper plate 45. The first power transmission copper plate 42, the second power transmission copper plate 43, the third power transmission copper plate 44 and the fourth power transmission copper plate 45 are connected to the whole vehicle power distribution device through plug connectors and double-core high-voltage wires, and charging of the vehicle is achieved.
When the charging plug 10 provides the alternating current, first connecting switch 81 disconnects first power transmission copper plate 42 and second power transmission copper plate 43, second connecting switch 82 disconnects third power transmission copper plate 44 and fourth power transmission copper plate 45, when the charging plug 10 provides the direct current, first connecting switch 81 connects first power transmission copper plate 42 and second power transmission copper plate 43, second connecting switch 82 connects third power transmission copper plate 44 and fourth power transmission copper plate 45. Thereby realizing the interface unification of the charging socket 4. In addition, adopt power transmission copper tablet, do benefit to charging socket 4's heat dissipation.
The charging interface provided in the above embodiment is accommodated in a box body 20, the box body 20 is connected to a vehicle body, the blower 1 is exposed out of the side wall of the box body 20 to absorb outside air, the box body 20 is provided with a third guide groove 201 which is coaxial with the first guide groove 611 and has the same shape, the charging socket 4 and the guide rail expansion device 6 are fixed on the box body 20, the guide rail expansion device 6 is arranged below the charging socket 4, the first air duct 2 is arranged in the first housing 61, the first air outlet 21 is exposed out of the first housing 61, the guide rail is accommodated in the box body 20 at the first position, the guide rail extends out of the box body 20 at the second position, and a first magnetic attraction component (not shown in the figure) is arranged at one end temporarily fixed to the charging plug 10.
Second embodiment
As shown in fig. 8, a second embodiment of the present invention provides a charging plug 10 adapted to the first embodiment, a second heat dissipation air duct 101 is disposed in the charging plug 10, the second heat dissipation air duct 101 has a third air inlet (not shown) and a third air outlet (not shown), the third air outlet faces a connection terminal of the charging plug 10, and when the charging plug 10 is inserted into the charging socket 4, the third air inlet is communicated with the other end of the first heat dissipation air duct. Specifically, the third air inlet is communicated with the second air outlet 32.
As shown in fig. 8, a side of the charging plug 10 facing the charging socket 4 is provided with a rail connector 102, the third air inlet is provided in the rail connector 102, the rail 5 is temporarily fixed in the rail connector 102 in the second position, and the third air inlet and the second air outlet 32 are kept communicated during the sliding of the rail from the second position to the third position.
The guide rail connector 102 is provided with a second guide groove 1021 which is consistent with the cross-sectional shape of the guide rail 5, the guide rail 5 is provided with a second magnetic attraction component which can attract the first magnetic attraction component arranged in the guide rail, and the guide rail 5 and the charging plug 10 are temporarily fixed through the attraction force of the first magnetic attraction component and the second magnetic attraction component.
In the above embodiments, the cross section of the guide rail 5 is i-shaped. The end of the guide rail 5 which can extend into the guide rail connector 102 is provided with a jack 51, a fixing column 103 which can be inserted into the jack 51 is arranged above the guide rail connector 102, and the insertion and the extraction of the fixing column 103 into and out of the jack 51 are automatically controlled by a motor. The fixing post 103 is used to further fix the guide rail 5 and the guide rail connector 102, so that the guide rail 5 cannot fall off from the charging plug 10 when the guide rail 5 drives the charging plug 10 to move towards the charging socket 4.
However, in other embodiments, the cross section of the guide rail 5 may also be polygonal, such as quadrangular, hexagonal, etc.
The working principle of the charging interface and the charging plug 10 provided by the above embodiment is as follows:
when a vehicle needs to be charged, the guide rail 5 slides to a second position under the driving of the first motor 62, and is inserted into the second guide groove 1021 through the attraction between the first magnetic attraction component and the second magnetic attraction component, the guide rail is temporarily fixed to the charging plug 10 by the attraction between the first magnetic attraction component and the second magnetic attraction component, and is further fixed by the fixing column 103 insertable into the jack 51, at this time, the second air outlet 32 is communicated with the third air inlet, the first motor 62 continues to drive the guide rail 5 and drives the charging plug 10 to slide to the third position from the second position, so that the charging plug 10 is in plug-in fit with the charging socket 4, and at this time, the second air inlet 31 is connected with the air outlet of the air blower 1. The second motor 711 is started to enable the first clamping rod 72 and the second clamping rod 73 to clamp the charging plug 10, and the second air outlet 32 and the third air inlet are kept communicated in the process that the guide rail slides from the second position to the third position. So that the charging plug 10 is inserted into the charging socket 4, at this time, the second air inlet 31 is connected with the air outlet of the air blower 1, and the air blower 1 is started, so that in the process of charging a vehicle (namely, the charging plug 10 is in plug-in fit with the charging socket 4), when the air blower 1 works, air sucked by the air blower 1 can blow to the charging terminal of the charging socket 4 through the first air duct 2 and blow to the charging terminal of the charging plug 10 through the second air duct 3 and the second heat dissipation air duct 101, so that the heat transfer rate of the connection part of the charging plug 10 and the charging socket 4 is improved, the temperature of the connection part of the charging plug 10 and the charging socket 4 is reduced, and the damage to the charging interface and the charging plug 10 is avoided. After the charging is completed, the second motor 711 is started to release the charging plug 10 from the first clamping rod 72 and the second clamping rod 73, the charging plug 10 is pulled out, and the second air outlet 32 is disconnected from the third air inlet. The fixing post 103 is pulled out from the insertion hole 51, the first motor 62 drives the guide rail to slide from the third position to the first position, and the second air inlet 31 is disconnected from the air outlet of the blower 1.
In the charging interface and the charging plug 10 provided in the above embodiment, in the charging process, the charging plug 10 is in plug-in fit with the charging socket 4, the second air outlet 32 is communicated with the second heat dissipation air duct 101, and air sucked by the blower 1 can blow to the charging terminal of the charging socket 4 through the first air duct 2 and blow to the charging terminal of the charging plug 10 through the second air duct 3 and the second heat dissipation air duct 101, so that the heat transfer rate at the joint of the charging plug 10 and the charging socket 4 is increased, the temperature at the joint of the charging plug 10 and the charging socket 4 is reduced, and the damage to the charging interface and the charging plug 10 is avoided.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (11)
1. A charging interface is characterized by comprising a charging socket and a first heat dissipation air duct arranged in the charging socket, wherein the first heat dissipation air duct is connected with an air blower;
one end of the first heat dissipation air channel corresponds to the connecting terminal of the charging socket, when the charging socket is matched with the charging plug in a splicing manner, the other end of the first heat dissipation air channel is communicated with the second heat dissipation air channel in the charging plug, the air blower blows and dissipates heat to the connecting terminal of the charging socket through the first heat dissipation air channel, and blows and dissipates heat to the connecting terminal of the charging plug through the second heat dissipation air channel.
2. The charging interface of claim 1, wherein the first heat dissipation air duct comprises a first air duct and a second air duct, the first air duct has a first air inlet and a first air outlet, and the second air duct has a second air inlet and a second air outlet;
the first air inlet is communicated with an air outlet of the air blower, the first air outlet faces towards a connecting terminal of the charging socket, when the charging socket is matched with the charging plug in an inserting mode, the second air inlet is communicated with the air outlet of the air blower, and the second air outlet is communicated with a second heat dissipation air channel arranged in the charging plug.
3. The charging interface of claim 2, further comprising a rail and a rail retractor, the second air duct is arranged in the guide rail, the guide rail expansion device is used for driving the guide rail to slide between a first position and a second position, the guide rail is accommodated in the charging interface when in the first position, the guide rail extends out of the charging interface and is temporarily fixed with the charging plug when in the second position, the guide rail can slide from the second position to a third position between the first position and the second position under the driving of the guide rail telescopic device, the charging socket is in plug-in fit with the charging plug when the guide rail is positioned at the third position, the second air outlet is communicated with the second heat dissipation air duct in the process that the guide rail slides from the second position to the third position.
4. The charging interface according to claim 3, wherein the rail extension device comprises a first housing, a first motor, and a first transmission mechanism, the first motor is disposed on an outer sidewall of the first housing, a first guide groove is disposed on the first housing, the rail is slidably inserted into the first guide groove, an input side of the first transmission mechanism is connected to an output shaft of the first motor, and an output side of the first transmission mechanism is connected to the rail.
5. The charging interface of claim 3, further comprising a locking device that locks the charging plug when the charging socket is mated with the charging plug.
6. The charging interface of claim 5, wherein the locking device comprises a driving mechanism, a first clamping rod and a second clamping rod, a mounting slot is formed on the charging socket, the first clamping rod and the second clamping rod are oppositely arranged in the mounting slot, and the driving mechanism is configured to drive the first clamping rod and the second clamping rod to rotate in a direction of clamping the charging plug.
7. The charging interface according to claim 6, wherein the driving mechanism comprises a second motor, a main push rod, a triangular rotating block, a first secondary push rod and a second secondary push rod, the main push rod is connected to the output shaft of the second motor and can move along with the rotation of the output shaft of the second motor, one end of the main push rod is hinged to the first end of the triangular rotating block, one end of the first secondary push rod is hinged to the second end of the triangular rotating block, the other end of the first secondary push rod is hinged to the first connecting position with the first clamping rod, one end of the second secondary push rod is hinged to the third end of the triangular rotating block, and the other end of the second secondary push rod is hinged to the second connecting position with the second clamping rod;
the first clamping rod and the charging socket are rotatably connected to a third connecting position, the second clamping rod and the charging socket are rotatably connected to a fourth connecting position, the third connecting position is located above the first connecting position, and the fourth connecting position is located below the second connecting position.
8. The charging interface according to claim 3, wherein the guide rail is provided with a first magnetic attraction member at an end thereof to which the charging plug is temporarily fixed.
9. A charging plug adapted to the charging interface of claim 1, wherein a second heat dissipation air duct is disposed in the charging plug, an air outlet of the second heat dissipation air duct faces the connection terminal of the charging plug, and when the charging socket is mated with the charging plug, an air inlet of the second heat dissipation air duct is communicated with the other end of the first heat dissipation air duct.
10. A charging plug adapted to a charging interface according to any one of claims 3 to 8, wherein a second heat dissipation air duct is disposed in the charging plug, the second heat dissipation air duct has a third air inlet and a third air outlet, a guide rail connector is disposed on a side of the charging plug facing the charging socket, the third air inlet is disposed in the guide rail connector, the third air outlet faces a connection terminal in the charging plug, the guide rail is temporarily fixed in the guide rail connector in the second position, and the third air inlet is communicated with the second air outlet disposed in the charging inlet during sliding of the guide rail from the second position to the third position.
11. The charging plug of claim 10, wherein a second magnetic component capable of attracting a first magnetic component disposed in the guide rail is disposed in the guide rail connector, and the guide rail and the charging plug are temporarily fixed by the attraction force of the first magnetic component and the second magnetic component.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810698512.8A CN110654258B (en) | 2018-06-29 | 2018-06-29 | Charging interface and charging plug |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810698512.8A CN110654258B (en) | 2018-06-29 | 2018-06-29 | Charging interface and charging plug |
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| CN110654258A true CN110654258A (en) | 2020-01-07 |
| CN110654258B CN110654258B (en) | 2021-06-18 |
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| CN201810698512.8A Active CN110654258B (en) | 2018-06-29 | 2018-06-29 | Charging interface and charging plug |
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