CN113858993B - Vehicle-mounted single-phase alternating-current charging socket, vehicle and method for identifying vehicle charging and discharging modes - Google Patents
Vehicle-mounted single-phase alternating-current charging socket, vehicle and method for identifying vehicle charging and discharging modes Download PDFInfo
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- CN113858993B CN113858993B CN202010617189.4A CN202010617189A CN113858993B CN 113858993 B CN113858993 B CN 113858993B CN 202010617189 A CN202010617189 A CN 202010617189A CN 113858993 B CN113858993 B CN 113858993B
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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
- 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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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
- B60L53/30—Constructional details of charging stations
- B60L53/31—Charging columns specially adapted for electric vehicles
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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
- B60L53/60—Monitoring or controlling charging stations
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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
- Y02T90/12—Electric charging stations
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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)
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- Transportation (AREA)
- Mechanical Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention provides a vehicle-mounted single-phase alternating-current charging socket, a vehicle and a method for identifying a charging and discharging mode of the vehicle, wherein the vehicle-mounted single-phase alternating-current charging socket comprises the following components: a base; a charging terminal is arranged corresponding to each charging interface; the first alternating current terminal and the neutral line terminal are used for transmitting power supply charging and discharging signals; the micro switch is arranged at a charging interface corresponding to the second phase alternating current terminal and is electrically connected with the second phase alternating current terminal, or the micro switch is arranged at a charging interface corresponding to the third phase alternating current terminal and is electrically connected with the third phase alternating current terminal, and the micro switch is used for being triggered by a communication terminal of the direct-to-direct charging adapter when the vehicle-mounted single-phase alternating current charging socket is in matched connection with the direct-to-direct charging adapter and sending a direct-current charging trigger signal. The vehicle-mounted single-phase alternating current charging socket provided by the embodiment of the invention can identify the charging mode and improve the charging safety.
Description
Technical Field
The invention relates to the technical field of vehicles, in particular to a vehicle-mounted single-phase alternating-current charging socket, a vehicle and a method for identifying a charging and discharging mode of the vehicle.
Background
With the rapid development of new energy vehicles, various enterprises develop PHEVs (Plug-in hybrid electric vehicle, plug-in hybrid electric vehicles) with high occupation, and related charging auxiliary facilities such as alternating current charging piles, direct current charging piles and alternating current and direct current integrated charging piles are also stably constructed. And more domestic passenger car enterprises, under the condition that PHEV vehicle types are more selected, the charging rate of the vehicle types with the same price becomes one of main factors of purchasing vehicles by users.
At present, the PHEV charging mode can be divided into ac charging and dc charging according to current types, in order to provide more charging mode selections for users, the PHEV is necessary to carry dc charging and ac charging functions, and since the PHEV vehicle type carrying the dc charging function is less, the development cost of the double-port scheme is higher for the PHEV vehicle type without the dc charging port, and the double-port scheme is not suitable for being used as a transitional scheme, and the dc charging equipment is switched to the ac charging interface by adding the charging adapter, so that the vehicle dc or ac charging is completed.
However, in the actual use process of the charging adapter, if the ac charging interface cannot identify the charging mode, a larger voltage may pass during charging, which causes damage to the vehicle-mounted charger and other components.
Disclosure of Invention
The present invention aims to solve at least one of the technical problems existing in the prior art. Therefore, an object of the present invention is to provide a vehicle-mounted single-phase ac charging socket that can recognize a charging mode and improve charging safety.
A second object of the invention is to propose a vehicle.
A third object of the present invention is to provide a method for identifying a charge-discharge mode of a vehicle.
To achieve the above object, an embodiment of a first aspect of the present invention provides a single-phase ac charging socket, the socket comprising: the charging device comprises a base body, wherein a plurality of charging interfaces are arranged on the base body; a charging terminal is arranged corresponding to each charging interface; the charging terminal comprises a first alternating current terminal, a second phase alternating current terminal, a third phase alternating current terminal and a neutral line terminal, wherein the first alternating current terminal and the neutral line terminal are used for transmitting power supply charging and discharging signals; the micro switch is arranged at the charging interface corresponding to the second phase alternating current terminal and is electrically connected with the second phase alternating current terminal, or the micro switch is arranged at the charging interface corresponding to the third phase alternating current terminal and is electrically connected with the third phase alternating current terminal, and the micro switch is used for being triggered by the communication terminal of the direct-to-direct-conversion charging adapter when the vehicle-mounted single-phase alternating current charging socket is in matched connection with the direct-to-direct-conversion charging adapter and sending a direct-current charging trigger signal.
According to the vehicle-mounted single-phase alternating-current charging socket provided by the embodiment of the invention, the micro switch is arranged in the vehicle-mounted single-phase alternating-current charging socket, when the vehicle is charged, the direct-to-alternating-current charging adapter or the alternating-current charging equipment is connected with the vehicle-mounted single-phase alternating-current charging socket, as the micro switch is arranged at the charging interface corresponding to the second phase alternating-current terminal of the vehicle-mounted single-phase alternating-current charging socket, or the micro switch is arranged at the charging interface corresponding to the third phase alternating-current terminal of the vehicle-mounted single-phase alternating-current charging socket, the second phase alternating-current terminal and the third phase alternating-current terminal are not connected with the charging equipment during single-phase alternating-current charging, the single-phase alternating-current charging is not influenced, and when the direct-to-alternating-current charging adapter is connected with the vehicle-mounted single-phase alternating-current charging socket, the micro switch at the charging interface can be triggered, the current charging mode is determined to be the direct-current charging mode, namely the current charging mode can be identified according to the triggering state of the micro switch, the charging mode can be prevented from being unable to be identified, and the charging risk caused by the charging mode is avoided.
In some embodiments, the micro switch is disposed in a jack of the charging interface, when the three-phase ac charger is in matched connection with the vehicle-mounted single-phase ac charging socket, a first ac terminal of the three-phase ac charger is electrically connected with the first ac terminal, both a second ac power terminal and a third ac power terminal of the three-phase ac charger are not contacted with the micro switch, and when the three-phase ac charger is in vehicle-mounted charging, the lengths of the second ac power terminal and the third ac power terminal of the three-phase ac charger are shorter, and the micro switch is not contacted, so that the current charging mode is determined, the charging terminal is prevented from having larger voltage to pass, and the charging circuit is protected.
In some embodiments, the micro switch is disposed at the charging interface, when the three-phase ac charger is in matched connection with the vehicle-mounted single-phase ac charging socket, a first ac power supply terminal of the three-phase ac charger is electrically connected with the first ac power supply terminal, and a second ac power supply terminal or a third ac power supply terminal of the three-phase ac charger is dislocated with the micro switch, so that the second ac power supply terminal and the third ac power supply terminal are not in contact with the micro switch, the micro switch is dislocated, the current charging mode is determined, the charging terminal is prevented from having larger voltage to pass through, and the charging circuit is protected.
In some embodiments, when the three-phase ac charger is connected to the vehicle-mounted single-phase ac charging socket in a matching manner, the micro switch is in clearance fit with the second-phase ac power terminal or the third-phase ac power terminal of the three-phase ac charger, and by clearance fit of the micro switch with the second-phase ac power terminal and the third-phase ac power terminal of the three-phase ac charger, dislocation of the micro switch is achieved, and charging safety is improved.
In order to achieve the above object, a second aspect of the present invention provides a vehicle including: the vehicle-mounted single-phase alternating-current charging socket is used for being connected with the direct-current charging adapter or the alternating-current charger in a matching mode so as to charge and discharge the power battery.
According to the vehicle provided by the embodiment of the invention, the vehicle-mounted single-phase alternating-current charging socket is connected with the direct-current charging adapter or the alternating-current charger in a matched manner, and the connection of the direct-current charging adapter or the alternating-current charger is distinguished through the trigger state of the micro switch, namely, the current charging mode is identified as direct-current charging or alternating-current charging, so that the charging risk caused by the fact that the charging mode cannot be identified is avoided, and the charging safety is improved.
To achieve the above object, a method for identifying a charge-discharge mode of a vehicle according to an embodiment of a third aspect of the present invention includes: acquiring a trigger signal of a micro switch of a vehicle-mounted single-phase alternating current charging socket; determining the triggering state of the micro switch according to the triggering signal; and determining a charging and discharging mode according to the triggering state of the micro switch, wherein the charging and discharging mode comprises a direct current charging and discharging mode and an alternating current charging and discharging mode.
According to the method for identifying the vehicle charging and discharging modes, the charging and discharging modes are determined according to the trigger state of the micro switch, so that the charging risk caused by the fact that the charging modes cannot be identified is avoided, and the charging safety is improved.
In some embodiments, the determining the charge-discharge mode according to the trigger state of the micro switch includes: and the micro switch is triggered to determine that the charging and discharging mode is a direct-current charging and discharging mode.
In some embodiments, the determining the charge-discharge mode according to the trigger state of the micro switch includes: detecting that the charging and discharging equipment is connected with a vehicle-mounted single-phase alternating-current charging socket of the vehicle; and if the micro switch is not detected to be triggered within the preset time, determining that the charging and discharging mode is an alternating-current charging and discharging mode.
Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
The foregoing and/or additional aspects and advantages of the invention will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:
FIG. 1 is a schematic diagram of a vehicle being charged using a direct-to-charge adapter in accordance with one embodiment of the invention;
FIG. 2 is a schematic diagram of an internal circuit of an on-board single-phase AC charging receptacle according to one embodiment of the invention;
FIG. 3 is a schematic diagram of the circuit principle for charging a vehicle DC using a DC-to-DC charging adapter in accordance with one embodiment of the invention;
FIG. 4 is a block diagram of a vehicle according to one embodiment of the invention;
fig. 5 is a flowchart of a method of identifying a charge-discharge pattern of a vehicle according to one embodiment of the invention.
Detailed Description
Embodiments of the present invention will be described in detail below, by way of example with reference to the accompanying drawings.
In the embodiment, for a PHEV vehicle without a dc charging function, the cost of the dual interfaces of the dc and ac charging is relatively high, and the dual interfaces are not suitable for being used as a transitional scheme, when the vehicle is in dc charging, as shown in fig. 1, the physical connection between the dc charging device and the vehicle-mounted single-phase ac charging socket is realized by adopting a transitional connection mode, so that the dc charging device is in dc charging function of the vehicle, the direct-to-alternating-current charging adapter mainly switches the terminal of the dc charging device to the terminal of the vehicle-mounted single-phase ac charging socket through a physical structure, and performs charging through policy interaction between the battery manager and the dc charging device, but in terms of safety, in the practical use process of the direct-to-alternating-current charging adapter, the charging mode may not be recognized by the vehicle-mounted ac charging socket, that is, when the vehicle is in the dc charging mode, the vehicle is in the vehicle, the three-phase ac charging gun is plugged into the vehicle-mounted single-phase ac charging socket, so that the ac terminal of the vehicle-mounted single-phase ac charging socket 1 has relatively high voltage to pass, and the vehicle-mounted charger and other components are damaged.
Therefore, in the embodiment of the invention, the vehicle-mounted single-phase alternating-current charging socket is provided, the current charging mode is identified according to the triggering state of the micro switch by arranging the micro switch in the socket, and under the condition of determining the charging mode, the vehicle is subjected to direct-current or alternating-current charging, so that the charging safety is improved by avoiding that the charging terminal has larger voltage to pass through the damaged alternating-current charging socket during charging.
An in-vehicle single-phase ac charging receptacle according to an embodiment of the first aspect of the present invention is described below with reference to fig. 2 and 3.
As shown in fig. 2, the vehicle-mounted single-phase ac charging socket 1 according to the embodiment of the present invention includes a housing and a micro switch 10. Wherein, the base body is provided with a plurality of charging interfaces 11; charging terminals are provided corresponding to each charging interface 11; the charging terminal comprises a first alternating current terminal L1, a second phase alternating current terminal L2, a third phase alternating current terminal L3 and a neutral line terminal N, wherein the first alternating current terminal L1 and the neutral line terminal N are used for transmitting power supply charging and discharging signals; the micro switch 10 is disposed at the charging interface 11 corresponding to the second phase ac terminal L2 and is electrically connected to the second phase ac terminal L2, or the micro switch 10 is disposed at the charging interface 11 corresponding to the third phase ac terminal L3 and is electrically connected to the third phase ac terminal L3, and the micro switch 10 is configured to be triggered by the communication terminal of the direct-to-direct-current charging adapter 2 when the vehicle-mounted single-phase ac charging socket 1 is in matching connection with the direct-to-direct-current charging adapter 2, and to transmit a direct-current charging trigger signal.
In an embodiment, when an ac charging device or a dc charging device is used to charge a vehicle, the trigger state of the micro switch 10 in the vehicle-mounted single-phase ac charging socket 1 is used to identify whether the charging device connected into the vehicle-mounted single-phase ac charging socket 1 is the ac charging device or the direct-to-alternating charging adapter 2, so as to determine whether the charging mode of the vehicle is the dc charging mode or the ac charging mode. In addition, since the lengths of the second phase ac terminal and the third phase ac terminal of the three-phase ac charging gun are short, the microswitch 10 is not touched when the three-phase ac charging gun is plugged into the vehicle-mounted single-phase ac charging socket, and thus the microswitch 10 is not triggered, and is automatically switched to single-phase ac charging. That is, when the vehicle is in AC charging, the single-phase AC charging gun and the three-phase AC charging gun can be normally connected with the vehicle-mounted single-phase AC charging socket 1 in an inserting mode, so that the AC charging equipment can carry out AC charging on the vehicle.
In the following description of the vehicle dc charging process with reference to fig. 3, when the vehicle is dc-charged, the vehicle-mounted single-phase ac charging socket 1 is not matched with the dc charging device, the physical connection between the dc charging device and the vehicle-mounted single-phase ac charging socket is achieved through the dc-to-ac charging adapter 2, the ac-side connection interface of the dc-to-ac charging adapter 2 is in matching connection with the charging interface 11 of the vehicle-mounted single-phase ac charging socket 1, the first ac-intersecting terminal L1 of the dc-to-ac charging adapter 2 is connected with the first ac-intersecting terminal L1 of the charging terminal of the vehicle-mounted single-phase ac charging socket 1, the neutral line terminal N of the dc-to-ac charging adapter 2 is connected with the neutral line terminal N of the charging terminal, for transmitting a dc charging signal to the vehicle-mounted terminal, the micro-switch 10 is provided in the vehicle-mounted charging socket 1, the micro-switch 10 is provided at the charging interface 11 corresponding to the second ac-phase ac terminal L2 of the vehicle-mounted single-phase ac charging socket 1 or at the charging interface 11 corresponding to the third ac-phase ac terminal L3, in the dc charging process, the second ac-to-phase ac terminal L2 is connected with the second ac-phase ac terminal L2 through the micro-switch 10, the dc-to-phase ac charging terminal L2 is triggered in the dc-to the vehicle single-phase ac charging socket 1, the three-phase ac charging interface is triggered by the dc-phase ac charging signal is triggered through the dc-to the dc-phase charging interface 1, the flowing current is still direct current, whether the equipment connected to the charging circuit is alternating current charging equipment or direct current charging adapter 2 is distinguished by determining whether the micro switch 10 of the vehicle-mounted single-phase alternating current charging socket 1 is in a trigger state, a charging mode is determined, direct current charging is started, and the safety of the charging circuit is improved.
According to the vehicle-mounted single-phase alternating-current charging socket 1 provided by the embodiment of the invention, the micro switch 10 is arranged in the vehicle-mounted single-phase alternating-current charging socket, when the vehicle is charged, the direct-transfer charging adapter 2 or the alternating-current charging equipment is connected with the vehicle-mounted single-phase alternating-current charging socket 1, the micro switch 10 is arranged at the charging interface corresponding to the second phase alternating-current terminal L2 of the vehicle-mounted single-phase alternating-current charging socket 1, or the micro switch 10 is arranged at the charging interface corresponding to the third phase alternating-current terminal L3 of the vehicle-mounted single-phase alternating-current charging socket 1, the second phase alternating-current terminal and the third phase alternating-current terminal are not connected with the charging equipment during single-phase alternating-current charging, single-phase alternating-current charging is not affected, and when the direct-transfer charging adapter is connected with the vehicle-mounted single-phase alternating-current charging socket, the micro switch at the charging interface 11 can be triggered, the current charging mode is determined to be the direct-current charging mode, namely, the direct-transfer charging adapter 2 or the alternating-current charging equipment is distinguished according to the triggering state of the micro switch 10 to be plugged into the vehicle-mounted charging socket, the charging risk caused by the charging mode which cannot be identified is avoided, and the charging risk caused by the charging mode is improved.
In some embodiments, as shown in fig. 3, the micro switch 10 is disposed in the jack of the charging interface 11, and when the three-phase ac charger is connected with the vehicle-mounted single-phase ac charging socket in a matching manner, the first ac intersecting terminal L1 of the three-phase ac charger is electrically connected with the first ac intersecting terminal L1 of the vehicle-mounted single-phase ac charging socket 1, and neither the second ac phase power terminal L2 nor the third ac phase power terminal L3 of the three-phase ac charger contact the micro switch 10.
In the embodiment, when the vehicle performs ac charging, the ac charging device, for example, the three-phase ac charger is connected to the single-phase ac charging socket 1 in a matching manner, and the pins of the second-phase ac power terminal L2 and the third-phase ac power terminal L3 of the three-phase ac charger are short, so that they cannot contact with the second-phase ac power terminal L2 and the third-phase ac power terminal L3 of the vehicle-mounted single-phase ac charging socket 1 during the plugging process. In the embodiment of the invention, the micro switch 10 is arranged in the jack of the charging interface 11, the arrangement depth can be selected according to the air gap requirement, so that the contact pin of the three-phase alternating-current charger cannot contact the micro switch 10 structurally, the micro switch 10 is electrically connected with the second phase alternating-current power supply terminal L2 and the third phase alternating-current power supply terminal L3 arranged in the jack of the charging interface 11, and the two phase alternating-current power supply terminals of the three-phase alternating-current charger cannot be communicated with the two phase terminals of the saddle, therefore, the single-phase alternating-current charging is performed only by connecting the first phase alternating-current power supply terminal L1 of the three-phase alternating-current charger with the first phase alternating-current power supply terminal L1 of the vehicle-mounted single-phase alternating-current charging socket 1, but the three-phase charging cannot be performed, the single-phase charging mode is automatically converted, the current charging mode is determined to be the alternating-current charging mode, the alternating-current charging control is performed on the vehicle, the charging risk caused by the fact that the charging mode cannot be identified is avoided, and the charging safety is improved.
In some embodiments, as shown in fig. 3, the micro switch 10 is disposed at the charging interface 11, and when the three-phase ac charger is in matching connection with the vehicle-mounted single-phase ac charging socket 1, the first ac power terminal L1 of the three-phase ac charger is electrically connected to the first ac power terminal L1, and the second ac power terminal L2 or the third ac power terminal L3 of the three-phase ac charger is dislocated from the micro switch 10, so that neither the second ac power terminal L2 nor the third ac power terminal L3 is in contact with the micro switch 10.
In the embodiment, when the vehicle is in ac charging, the second phase ac power supply terminal L2 or the third phase ac power supply terminal L3 of the three-phase ac charger is dislocated with the micro switch 10 in the plugging process, so that the three-phase ac power supply terminal cannot be in contact with the micro switch 10, the micro switch 10 is not triggered, and only the first phase ac power supply terminal L1 of the three-phase ac charger is connected with the first phase ac power supply terminal L1 of the vehicle-mounted single-phase ac charging socket 1 to transmit an ac charging signal, so that the current charging mode is determined to be the ac charging mode, the vehicle is ac charging controlled, the charging risk caused by the fact that the charging mode cannot be identified is avoided, and the safety of the charging circuit is improved.
In some embodiments, as shown in fig. 3, when the three-phase ac charger is in mating connection with the vehicle-mounted single-phase ac charging socket 1, the micro switch 10 is in clearance fit with the second phase ac power terminal L2 or the third phase ac power terminal L3 of the three-phase ac charger, and the minimum clearance is greater than zero. For example, the shape of the power terminal pin of the three-phase ac charger is different from the shape of the charging interface 11, for example, the shape of the power terminal pin of the three-phase ac charger is cylindrical, the shape of the charging interface 11 and the shape of the micro switch 10 are square and the diameter of the power terminal pin is larger than that of the three-phase ac charger, in the plugging process, the three-phase ac charger and the micro switch 11 have gaps, namely, the two are misplaced, the micro switch 10 cannot be triggered, and only the first cross power terminal L1 of the three-phase ac charger is connected with the first cross power terminal L1 of the vehicle-mounted single-phase ac charging socket 1 to transmit an ac charging signal, determine that the current charging mode is an ac charging mode, and perform ac charging control on the vehicle, so that charging risks caused by unrecognizable charging modes are avoided, and the safety of the charging circuit is improved.
In summary, according to the vehicle-mounted single-phase ac charging socket 1 of the embodiment of the present invention, by providing the micro-switch 10 in the vehicle-mounted single-phase ac charging socket, when the vehicle is charged, the direct-transfer charging adapter 2 or the ac charging device is connected to the vehicle-mounted single-phase ac charging socket 1, the micro-switch 10 is provided at the charging interface corresponding to the second phase ac terminal L2 of the vehicle-mounted single-phase ac charging socket 1, or the micro-switch 10 is provided at the charging interface corresponding to the third phase ac terminal L3 of the vehicle-mounted single-phase ac charging socket 1, the second phase ac terminal and the third phase ac terminal are not connected to the charging device during single-phase ac charging, so that single-phase ac charging is not affected, and when the direct-transfer charging adapter is connected to the vehicle-mounted single-phase ac charging socket, the micro-switch at the charging interface 11 can be triggered, so that the current charging mode is determined to be the direct-current charging mode, that the direct-transfer charging adapter 2 or the ac charging device is differentiated into the vehicle-mounted charging socket according to the triggering state of the micro-switch 10, so as to avoid the charging risk caused by the unrecognizable charging mode, and to improve the safety of the charging circuit.
A vehicle according to an embodiment of the second aspect of the present invention is described below with reference to the accompanying drawings.
Fig. 4 is a block diagram of a vehicle according to a second aspect of the present invention, and as shown in fig. 4, a block diagram 30 according to the second aspect of the present invention includes a power battery 31, an on-board charger 32, and the on-board single-phase ac charging socket 1 mentioned in the above embodiment, where the on-board single-phase ac charging socket 1 is used for matching connection with the direct-to-charge adapter 2 or the ac charger to discharge the power battery 31.
According to the vehicle 30 of the embodiment of the invention, the vehicle-mounted single-phase alternating-current charging socket 1 is connected with the direct-current charging adapter 2 or the alternating-current charger in a matched manner, and the connection between the direct-current charging adapter 2 and the alternating-current charging equipment is distinguished through the triggering state of the micro switch 10, namely, the current charging mode is identified to be direct-current charging or alternating-current charging, so that the charging risk caused by the fact that the charging mode cannot be identified is avoided, and the charging safety is improved.
A method of identifying a charge-discharge pattern of a vehicle according to an embodiment of a third aspect of the present invention is described below with reference to the accompanying drawings.
Fig. 5 is a flowchart of a method for identifying a charge-discharge mode of a vehicle according to an embodiment of the third aspect of the present invention, and as shown in fig. 5, the method for identifying a charge-discharge mode of a vehicle according to an embodiment of the second aspect of the present invention at least includes step S1, step S2 and step S3.
Step S1, a trigger signal of a micro switch is obtained.
In the embodiment, the vehicle can be charged by adopting a direct-current charger or an alternating-current charger in the charging process, when the direct-current charger charges the vehicle, a direct-current charging adapter is required to be adopted to realize the physical connection between the direct-current charger and the vehicle-mounted single-phase alternating-current charging socket, and in the charging process, the trigger signal of the micro switch is obtained.
And S2, determining the triggering state of the micro switch according to the triggering signal.
In an embodiment, the micro switch is triggered in the charging process, a direct-current charging trigger signal is sent, and the vehicle-mounted single-phase alternating-current charging socket determines that the micro switch is in a trigger state according to the micro switch trigger signal.
And step S3, determining a charging and discharging mode according to the triggering state of the micro switch, wherein the charging and discharging mode comprises a direct current charging and discharging mode and an alternating current charging and discharging mode.
In an embodiment, the vehicle-mounted single-phase alternating-current charging socket determines a current charging and discharging mode according to a trigger state of the micro switch, and performs direct-current charging or alternating-current charging on the vehicle when the charging and discharging mode is determined, so that a charging circuit is protected.
According to the method for identifying the vehicle charging and discharging modes, the charging and discharging modes are determined according to the triggering state of the micro switch, so that the charging risk caused by the fact that the charging modes cannot be identified is avoided, and the charging safety is improved.
In some embodiments, determining the charging and discharging mode according to the trigger state of the micro switch includes triggering the micro switch, determining that the charging and discharging mode is a direct-current charging and discharging mode, and when the micro switch is triggered, indicating that the direct-current charging adapter is connected with the vehicle-mounted single-phase alternating-current charging socket, and performing information interaction with an alternating-current terminal of the vehicle-mounted single-phase alternating-current charging socket through a second phase alternating-current terminal L2 and a third phase alternating-current terminal L3 of the direct-current charging adapter, so as to realize direct-current charging of the vehicle.
In some embodiments, determining the charge-discharge mode based on the trigger state of the microswitch includes detecting that the charge-discharge device is connected to a vehicle-mounted single-phase alternating current charging receptacle of the vehicle; and if the micro switch is not triggered in the preset time, determining that the charging and discharging mode is an alternating-current charging and discharging mode, and indicating that the alternating-current charging and discharging equipment is connected to a charging and discharging circuit, thereby determining the current charging and discharging mode, avoiding the charging risk caused by the fact that the charging mode cannot be identified, and improving the safety of the charging circuit.
In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples.
While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the invention, the scope of which is defined by the claims and their equivalents.
Claims (8)
1. A vehicle-mounted single-phase alternating current charging socket, comprising:
the charging device comprises a base body, wherein a plurality of charging interfaces are arranged on the base body;
a charging terminal is arranged corresponding to each charging interface;
the charging terminal comprises a first alternating current terminal, a second phase alternating current terminal, a third phase alternating current terminal and a neutral line terminal, wherein the first alternating current terminal and the neutral line terminal are used for transmitting power supply charging and discharging signals;
the micro switch is arranged at the charging interface corresponding to the second phase alternating current terminal and is electrically connected with the second phase alternating current terminal, or the micro switch is arranged at the charging interface corresponding to the third phase alternating current terminal and is electrically connected with the third phase alternating current terminal, and the micro switch is used for being triggered by the communication terminal of the direct-to-direct-conversion charging adapter when the vehicle-mounted single-phase alternating current charging socket is in matched connection with the direct-to-direct-conversion charging adapter and sending a direct-current charging trigger signal.
2. The vehicle-mounted single-phase alternating current charging socket according to claim 1, wherein the micro switch is arranged in a jack of the charging interface, a first alternating current power terminal of the three-phase alternating current charger is electrically connected with the first alternating current power terminal when the three-phase alternating current charger is in matched connection with the vehicle-mounted single-phase alternating current charging socket, and a second alternating current power terminal and a third alternating current power terminal of the three-phase alternating current charger are not contacted with the micro switch.
3. The vehicle-mounted single-phase alternating current charging socket according to claim 1, wherein the micro switch is arranged at a charging interface, when a three-phase alternating current charger is in matched connection with the vehicle-mounted single-phase alternating current charging socket, a first alternating current power supply terminal of the three-phase alternating current charger is electrically connected with the first alternating current power supply terminal, and a second phase alternating current power supply terminal or a third phase alternating current power supply terminal of the three-phase alternating current charger is misplaced with the micro switch, so that the second phase alternating current power supply terminal and the third phase alternating current power supply terminal are not in contact with the micro switch.
4. The vehicle-mounted single-phase ac charging receptacle of claim 3, wherein the microswitch is clearance fit with the second phase ac power terminal or the third phase ac power terminal of the three-phase ac charger when the three-phase ac charger is matingly connected with the vehicle-mounted single-phase ac charging receptacle.
5. A vehicle, characterized by comprising:
a power battery and a vehicle-mounted charger;
the vehicle-mounted single-phase ac charging receptacle of any one of claims 1-4 for mating connection with a direct-to-direct charging adapter or an ac charger to charge and discharge the power battery.
6. A method of identifying a charge-discharge pattern of a vehicle, the method comprising:
acquiring a trigger signal of a micro switch of a vehicle-mounted single-phase alternating current charging socket;
determining the triggering state of the micro switch according to the triggering signal;
and determining a charging and discharging mode according to the triggering state of the micro switch, wherein the charging and discharging mode comprises a direct current charging and discharging mode and an alternating current charging and discharging mode.
7. The method of identifying a charge-discharge mode of a vehicle of claim 6, wherein said determining a charge-discharge mode based on a trigger state of the micro-switch comprises:
and the micro switch is triggered to determine that the charging and discharging mode is a direct-current charging and discharging mode.
8. The method of identifying a charge-discharge mode of a vehicle of claim 6, wherein said determining a charge-discharge mode based on a trigger state of the micro-switch comprises:
detecting that the charging and discharging equipment is connected with a vehicle-mounted single-phase alternating-current charging socket of the vehicle;
and if the micro switch is not detected to be triggered within the preset time, determining that the charging and discharging mode is an alternating-current charging and discharging mode.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010617189.4A CN113858993B (en) | 2020-06-30 | 2020-06-30 | Vehicle-mounted single-phase alternating-current charging socket, vehicle and method for identifying vehicle charging and discharging modes |
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| CN202010617189.4A CN113858993B (en) | 2020-06-30 | 2020-06-30 | Vehicle-mounted single-phase alternating-current charging socket, vehicle and method for identifying vehicle charging and discharging modes |
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| CN113858993A CN113858993A (en) | 2021-12-31 |
| CN113858993B true CN113858993B (en) | 2023-06-13 |
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| CN113858993A (en) | 2021-12-31 |
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