CN113335088A - Rectifying unit, vehicle-mounted charging device and vehicle - Google Patents
Rectifying unit, vehicle-mounted charging device and vehicle Download PDFInfo
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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
- B60L53/12—Inductive energy transfer
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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
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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
- B60L53/62—Monitoring or controlling charging stations in response to charging parameters, e.g. current, voltage or electrical charge
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J50/10—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/007—Regulation of charging or discharging current or voltage
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/007—Regulation of charging or discharging current or voltage
- H02J7/00712—Regulation of charging or discharging current or voltage the cycle being controlled or terminated in response to electric parameters
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/02—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from AC mains by converters
- H02J7/04—Regulation of charging current or voltage
- H02J7/06—Regulation of charging current or voltage using discharge tubes or semiconductor devices
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M7/00—Conversion of AC power input into DC power output; Conversion of DC power input into AC power output
- H02M7/02—Conversion of AC power input into DC power output without possibility of reversal
- H02M7/04—Conversion of AC power input into DC power output without possibility of reversal by static converters
- H02M7/12—Conversion of AC power input into DC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M7/21—Conversion of AC power input into DC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
- H02M7/217—Conversion of AC power input into DC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
- H02M7/219—Conversion of AC power input into DC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only in a bridge configuration
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J2207/00—Indexing scheme relating to details of circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J2207/20—Charging or discharging characterised by the power electronics converter
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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
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/72—Electric energy management in electromobility
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Computer Networks & Wireless Communication (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The application provides a rectifying unit, a vehicle-mounted charging device and a vehicle, wherein a vehicle-mounted charging system comprises a wired charging unit, a wireless charging unit and the rectifying unit, and the rectifying unit comprises a first rectifying sub-unit, a second rectifying sub-unit and a third rectifying sub-unit; the first rectifier subunit is connected with the second rectifier subunit, the second rectifier subunit is connected with the third rectifier subunit, the wired charging unit is respectively connected with the first rectifier subunit and the second rectifier subunit, and the wireless charging unit is respectively connected with the first rectifier subunit and the third rectifier subunit. Therefore, the wired charging and wireless charging can be switched, the cost, the volume and the weight of vehicle parts can be reduced, and the spatial layout of the vehicle is optimized.
Description
Technical Field
The application relates to the technical field of automobiles, in particular to a rectifying unit, an on-vehicle charging device and a vehicle.
Background
Along with the development of intellectualization, the wireless charging opportunity of the automobile gradually appears on more and more automobile types, and generally, a wireless charging device and a wired charging device need to be installed on the automobile. At present because wireless product cost problem of charging, because wireless charging all has a set of solitary processing logic with wired charging moreover, consequently when the car installs wired charging device and wireless charging device simultaneously, can make the great weight of charging device volume of whole vehicle higher, consequently this causes the inside structure of car again complicated, and spatial layout is unreasonable waits phenomenon for wireless charging is hardly popularized very fast.
Disclosure of Invention
The embodiment of the application provides a rectification unit, a vehicle-mounted charging device and a vehicle, and aims to realize the switching between wired charging and wireless charging, reduce the cost, the volume and the weight of vehicle parts and optimize the spatial layout of the vehicle.
In a first aspect, an embodiment of the present application provides a rectifying unit, where a vehicle-mounted charging system includes a wired charging unit, a wireless charging unit, and the rectifying unit includes a first rectifying sub-unit, a second rectifying sub-unit, and a third rectifying sub-unit;
the first rectifier subunit is connected with the second rectifier subunit, the second rectifier subunit is connected with the third rectifier subunit, the wired charging unit is respectively connected with the first rectifier subunit and the second rectifier subunit, and the wireless charging unit is respectively connected with the first rectifier subunit and the third rectifier subunit;
the rectifying unit is used for rectifying the current from the wired charging unit or the wireless charging unit.
Therefore, in the application, the wired charging unit and the wireless charging unit share one rectifier subunit to carry out rectification, so that the wired charging and the wireless charging switching of the vehicle can be realized, the cost waste of vehicle parts caused by the fact that the wired charging unit and the wireless charging unit respectively use one independent rectifier unit can be reduced, the size and the weight can be reduced, the spatial layout of the vehicle is optimized, and the service life of the rectifier unit can be prolonged by sharing one rectifier subunit.
Further, each of the first, second and third rectifier sub-units comprises at least one rectifier module; the at least one rectifying module is used for rectifying the current obtained by the rectifying unit.
Therefore, the rectifier subunit of the present application includes at least one rectifier module for rectification, so that the rectification effect and the rectification efficiency of the current flowing into the rectifier unit can be ensured.
Furthermore, the rectifying unit further comprises a first switching subunit and a second switching subunit; the first end of the first switch subunit is connected with the wired charging unit, and the second end of the first switch subunit is connected with the first rectifier subunit or the second rectifier subunit, so as to control the connection relationship between the wired charging unit and the rectifier unit according to the current charging mode, wherein the charging mode comprises a wired charging mode or a wireless charging mode; the first end of the second switch subunit is connected with the wireless charging unit, and the second end of the second switch subunit is connected with the first rectifying subunit or the third rectifying subunit, and is used for controlling the connection relationship between the wireless charging unit and the rectifying unit according to the current charging mode.
Therefore, in the application, the first switch subunit and the second switch subunit control the connection relation between the wired charging unit and the wireless charging unit and the rectifying unit, so that the vehicle can realize the switching between the wired charging mode and the wireless charging mode.
Still further, the first switching sub-unit includes a first relay switch and the second switching sub-unit includes a second relay switch.
Therefore, in the application, the connection relation between the wired charging unit and the wireless charging unit and the rectifying unit can be conveniently and rapidly controlled by controlling the relay switch, and the switching rate of the charging mode is improved.
Further, the rectifying module comprises a diode submodule and a transistor submodule; the diode sub-module is connected with the transistor sub-module in parallel; the transistor submodule is used for rectifying the current obtained by the rectifying unit, and the diode submodule is used for protecting the circuit safety of the transistor submodule.
Therefore, in the application, the rectifier module comprises the diode submodule and the transistor submodule, so that the rectification efficiency can be improved, and the circuit safety can be ensured.
Still further, the diode submodule includes a diode and the transistor submodule includes a field effect transistor.
Therefore, in the application, the field effect transistor is used for rectification, so that the rectification efficiency can be improved, and the power consumption is low.
In a second aspect, an embodiment of the present application provides an on-vehicle charging device, and an on-vehicle charging system includes the on-vehicle charging device, where the on-vehicle charging device includes a wired charging unit, a wireless charging unit, and a rectifying unit provided in the first aspect, where the rectifying unit includes a first rectifying sub-unit, a second rectifying sub-unit, and a third rectifying sub-unit;
the first rectifier subunit is connected with the second rectifier subunit, the second rectifier subunit is connected with the third rectifier subunit, the wired charging unit is respectively connected with the first rectifier subunit and the second rectifier subunit, and the wireless charging unit is respectively connected with the first rectifier subunit and the third rectifier subunit;
the wired charging unit and the wireless charging unit are used for acquiring charging current.
Further, the device further comprises a filtering unit; the filtering unit is connected with the rectifying unit and used for filtering the current from the rectifying unit.
Therefore, in the application, the wired charging unit and the wireless charging unit share one filtering unit, so that the wired charging and the wireless charging can be switched, the cost, the size and the weight of vehicle parts can be reduced, and the spatial layout of the vehicle is optimized.
Still further, the filter unit includes a filter capacitor.
Therefore, the filtering through the filter capacitor in the application is simple in structure and can reduce the cost of vehicle parts.
In a third aspect, embodiments of the present application provide a vehicle including the rectifying unit provided as the first aspect described above or the vehicle-mounted charging device provided as the second aspect described above.
In this example, it can be seen that, the first rectifier sub-unit is connected to the second rectifier sub-unit, the second rectifier sub-unit is connected to the third rectifier sub-unit, the wired charging unit is respectively connected to the first rectifier sub-unit and the second rectifier sub-unit, and the wireless charging unit is respectively connected to the first rectifier sub-unit and the third rectifier sub-unit; the rectifying unit is used for rectifying the current from the wired charging unit or the wireless charging unit. Therefore, the wired charging unit and the wireless charging unit can be integrated and share one rectifier subunit, the wired charging and the wireless charging can be switched, the cost, the size and the weight of vehicle parts can be reduced, and the spatial layout of the vehicle is optimized.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a rectifying unit provided in an embodiment of the present application;
fig. 2 is a schematic structural diagram of a rectifier sub-unit provided in an embodiment of the present application;
fig. 3a is a schematic structural diagram of another rectifying unit provided in the embodiment of the present application;
fig. 3b is a schematic structural diagram of another rectifying unit provided in the embodiment of the present application;
fig. 4 is a schematic structural diagram of a rectifier module according to an embodiment of the present disclosure;
fig. 5 is a schematic circuit structure diagram of a rectifying unit according to an embodiment of the present disclosure;
fig. 6 is a schematic structural diagram of an in-vehicle charging device according to an embodiment of the present application;
fig. 7 is a schematic structural diagram of another vehicle-mounted charging device provided in the embodiment of the present application;
fig. 8 is a circuit configuration diagram of an in-vehicle charging device according to an embodiment of the present application.
Detailed Description
In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only partial embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
The following are detailed below.
The terms "first," "second," "third," and "fourth," etc. in the description and claims of this application and in the accompanying drawings are used for distinguishing between different objects and not for describing a particular order. Furthermore, the terms "comprising" and "having," as well as any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those steps or elements listed, but may alternatively include other steps or elements not listed, or inherent to such process, method, article, or apparatus.
Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.
The technical solution in the present application will be described below with reference to the accompanying drawings.
Referring to fig. 1, fig. 1 is a schematic structural diagram of a rectifying unit according to an embodiment of the present disclosure. As shown in fig. 1, the rectifying unit 13 is applied to an in-vehicle charging system 10, the in-vehicle charging system 10 includes a wired charging unit 11, a wireless charging unit 12, and the rectifying unit 13 includes a first rectifying sub-unit 131, a second rectifying sub-unit 132, and a third rectifying sub-unit 133; the first rectifier sub-unit 131 is connected with the second rectifier sub-unit 132, the second rectifier sub-unit 132 is connected with the third rectifier sub-unit 133, the wired charging unit 11 is respectively connected with the first rectifier sub-unit 131 and the second rectifier sub-unit 132, and the wireless charging unit 12 is respectively connected with the first rectifier sub-unit 131 and the third rectifier sub-unit 133; the rectifying unit 13 is used for rectifying the current from the wired charging unit 11 or the wireless charging unit 12.
The wired charging unit may include a wired charger, and the wireless charging unit may include a wireless charger. The wired charging unit and the wireless charging unit can be integrated together to share one rectifying unit, so that charging currents acquired by the wired charging unit or the wireless charging unit are rectified by the same rectifying unit. In a specific implementation, a plurality of rectifier sub-units are included in one rectifying unit, and each rectifier sub-unit can be used for rectifying current obtained by the rectifying unit. In the present application, the charging current obtained by the wired charging unit is rectified by the first and second rectifier sub-units, and the current obtained by the wireless charging unit is rectified by the first and third rectifier sub-units. That is to say, the wired charging unit and the wireless charging unit share the same rectifier sub-unit. The first rectifier sub-unit, the second rectifier sub-unit and the third rectifier sub-unit are the same rectifier sub-unit, so the wired charging unit and the wireless charging unit may be the common second rectifier sub-unit or the common third rectifier sub-unit.
Therefore, in the embodiment, the wired charging unit and the wireless charging unit share one rectifying subunit in the rectifying unit for rectifying, so that the wired charging and the wireless charging of the vehicle can be switched, the cost waste of vehicle parts caused by the fact that the wired charging unit and the wireless charging unit respectively use one independent rectifying unit can be reduced, the size and the weight can be reduced, the spatial layout of the vehicle is optimized, and the service life of the rectifying unit can be prolonged by sharing one rectifying subunit.
In one possible example, each of the first, second and third rectifying sub-units comprises at least one rectifying module; the at least one rectifying module is used for rectifying the current obtained by the rectifying unit.
Since the first rectifier sub-unit, the second rectifier sub-unit and the third rectifier sub-unit are the same rectifier sub-unit, taking any one of the rectifier sub-units as an example, please refer to fig. 2, and fig. 2 is a schematic structural diagram of a rectifier sub-unit provided in the embodiment of the present application. As shown in fig. 2, at least one rectifying module 201 is included in one rectifying sub-unit 20, wherein the rectifying module in the dashed box represents that the rectifying module may or may not be present, that is, the rectifying module in the rectifying sub-unit may include one or more rectifying modules. When a plurality of rectifying modules are included in the rectifying sub-unit, the plurality of rectifying modules may be connected in sequence. Each of the rectifying modules may be adapted to rectify a current flowing into the rectifying sub-unit.
It can be seen that, in this example, the rectifier sub-unit includes at least one rectifier module for rectifying, so that the rectification effect and the rectification efficiency of the current flowing into the rectifier unit can be ensured.
In one possible example, referring to fig. 3a and 3b, the rectifying unit 33 further includes a first switching subunit 334 and a second switching subunit 335; a first end of the first switch subunit 334 is connected to the wired charging unit 31, and a second end of the first switch subunit 334 is connected to the first rectifier subunit 331 or the second rectifier subunit 332, so as to control a connection relationship between the wired charging unit 31 and the rectifying unit 33 according to a current charging mode, where the charging mode includes a wired charging mode or a wireless charging mode; a first end of the second switch subunit 335 is connected to the wireless charging unit 32, and a second end of the second switch subunit 335 is connected to the first rectifier subunit 331 or the third rectifier subunit 333, so as to control a connection relationship between the wireless charging unit 32 and the rectifier unit 33 according to a current charging mode.
The first switch subunit shown in fig. 3a is connected to the wired charging unit and the first rectifying subunit, and the second switch subunit is connected to the wireless charging unit and the first rectifying subunit. In specific implementation, the first switch subunit may be connected to the wired charging unit and the first rectifier subunit, and the second switch subunit is connected to the wireless charging unit and the third rectifier subunit. Alternatively, the first switch subunit shown in fig. 3b is connected to the wired charging unit and the second rectifier subunit, respectively, and the second switch subunit is connected to the wireless charging unit and the third rectifier subunit, respectively. Or the first switch subunit is respectively connected with the wired charging unit and the second rectifier subunit, and the second switch subunit is respectively connected with the wireless charging unit and the first rectifier subunit. When the charging mode is the wireless charging mode, namely the charging current is acquired through the wireless charging unit, at the moment, the wired charging unit and the rectifying unit are disconnected through the first switch subunit, and the wireless charging unit and the rectifying unit are connected through the second switch subunit, so that the rectifying unit rectifies the charging current acquired by the wireless charging unit. When the charging mode is the wired charging mode, namely the charging current is obtained through the wired charging unit, the first switch subunit and the second switch subunit have the same function.
In this example, the first switch subunit and the second switch subunit control the connection relationship between the wired charging unit, the wireless charging unit and the rectifying unit, so that the vehicle can realize the switching between the wired charging mode and the wireless charging mode.
In one possible example, the first switching subunit and the second switching subunit control the connection relationship between the wired charging unit and the wireless charging unit and the first rectifying subunit respectively according to the current charging mode, including: acquiring a currently available charging mode; controlling the first switch subunit to open and the second switch subunit to close if the currently available charging mode comprises a wireless charging mode.
The current available charging mode comprises a wired charging mode or a wireless charging mode, and if the current available charging mode is the wireless charging mode, the switching state of the first switch subunit is controlled to be off, the switching state of the second switch subunit is controlled to be on, so that the wired charging unit is disconnected from the rectifying unit, and the wireless charging unit is connected with the rectifying unit. The vehicle can obtain the charging current through the wireless charging unit, and the rectifying unit is used for rectifying the current obtained by the wireless charging unit. Similarly, if the currently available charging mode is the wireless charging mode, the switching state of the first switch subunit is controlled to be on, and the switching state of the second switch subunit is controlled to be off.
Therefore, in the embodiment, the charging mode can be switched only by changing the switching states of the first switch subunit and the second switch subunit, so that the structure is simple, and the switching of the charging mode can be quickly realized.
In one possible example, the first switching sub-unit comprises a first relay switch and the second switching sub-unit comprises a second relay switch.
The first switch subunit and the second switch subunit can be relay switches and can be evolved and replaced by semiconductor switches.
Therefore, in the embodiment, by controlling the relay switch, the connection relationship between the wired charging unit and the wireless charging unit and the rectifying unit can be conveniently and rapidly controlled, and the switching rate of the charging mode is improved.
In one possible example, referring to fig. 4, the rectifier module 40 includes a diode submodule 41 and a transistor 42 module; the diode submodule 41 is connected in parallel with the transistor submodule 42; the transistor submodule 42 is configured to rectify the current obtained by the rectifying unit, and the diode submodule 41 is configured to protect the circuit safety of the transistor submodule 42.
The diode submodule is connected with the transistor submodule in parallel, so that when overvoltage occurs, devices in the diode submodule are subjected to reverse breakdown firstly, large current is directly connected to the ground, and the devices in the transistor submodule are prevented from being burnt out. In a specific implementation, one rectifier subunit includes two rectifier modules, and the two rectifier modules are connected in series. When rectifying the current obtained by the wired charging unit, two rectifying modules included in the first rectifying sub-unit and two rectifying modules included in the second rectifying sub-unit may be considered together as one rectifying bridge. In the same way, when the current obtained by the wireless charging unit is rectified, the two rectifying modules included in the first rectifying sub-unit and the two rectifying modules included in the third rectifying sub-unit can be considered as a rectifying bridge together.
Therefore, in the embodiment, the rectifier module comprises the diode submodule and the transistor submodule, so that the rectification efficiency can be improved, and the circuit safety can be ensured.
In one possible example, the diode sub-module comprises a diode and the transistor sub-module comprises a field effect transistor.
Wherein the Field Effect Transistor comprises a Metal-Oxide-Semiconductor Field-Effect Transistor (MOSFET). As shown in fig. 5, fig. 5 is a schematic circuit structure diagram of a rectifying unit according to an embodiment of the present application, in which a rectifying unit 50 shown in the figure includes 3 rectifying sub-units 51 connected in parallel, each rectifying sub-unit 51 includes two rectifying modules 511, each rectifying module 511 includes a diode D1 and a field effect transistor Q1, and the diode is connected in parallel with the field effect transistor.
Therefore, in the present example, the field effect transistor is used for rectification, which not only can improve the rectification efficiency, but also has low power consumption.
Referring to fig. 6, fig. 6 is a schematic structural diagram of a vehicle-mounted charging device provided in the embodiment of the present application, a vehicle-mounted charging system 6 includes the vehicle-mounted charging device 60, the vehicle-mounted charging device 60 includes a wired charging unit 61, a wireless charging unit 62, and a rectifying unit 63 as described in the foregoing embodiments, the rectifying unit 63 includes a first rectifying sub-unit 631, a second rectifying sub-unit 632, and a third rectifying sub-unit 633; the first rectifier sub-unit 631 is connected with the second rectifier sub-unit 632, the second rectifier sub-unit 632 is connected with the third rectifier sub-unit 633, the wired charging unit 61 is respectively connected with the first rectifier sub-unit 631 and the second rectifier sub-unit 632, and the wireless charging unit 62 is respectively connected with the first rectifier sub-unit 631 and the third rectifier sub-unit 633; the wired charging unit 61 and the wireless charging unit 62 are configured to obtain a charging current.
In a possible example, please refer to fig. 7, and fig. 7 is a schematic structural diagram of another vehicle-mounted charging device according to an embodiment of the present application. As shown, the vehicle-mounted charging device 70 further includes a filtering unit 74; the filtering unit 74 is connected to the rectifying unit 73, and is configured to filter the current from the rectifying unit 73.
Here, as the vehicle-mounted charging device 70 shown in fig. 7, the wired charging unit 71 and the wireless charging unit 72 share one filtering unit 74. In specific implementation, the vehicle-mounted charging device may further include a first switch unit and a second switch unit, the first switch unit is connected to the wired charging unit and the rectifying unit, the second switch unit is connected to the wireless charging unit and the rectifying unit, the first switch unit is configured to control a connection relationship between the wired charging unit and the rectifying unit, and the second switch unit is configured to control a connection relationship between the wireless charging unit and the rectifying unit.
Therefore, in the embodiment, the wired charging unit and the wireless charging unit share one filtering unit, so that the wired charging and the wireless charging can be switched, the cost, the size and the weight of vehicle components can be reduced, and the spatial layout of the vehicle is optimized.
In one possible example, the filter unit includes a filter capacitor.
Wherein the filter capacitor may be an electrolytic capacitor. Of course, the filter unit may also include other devices that may be used for filtering, for example, the filter unit includes a capacitor and an inductor, or includes a capacitor and a resistor, etc.
Therefore, as shown in fig. 8, fig. 8 is a circuit structure diagram of a vehicle-mounted charging device according to an embodiment of the present application, in the vehicle-mounted charging device shown in fig. 8, a rectifying submodule is formed by connecting a diode D1 and a field effect transistor Q1 in parallel, so that two rectifying submodules are connected in series to form a rectifying subunit, 3 rectifying subunits, a first switching subunit S1A and a second switching subunit S1B form a rectifying unit, and a filter capacitor C1 forms a filter unit. Of course, the rectifying unit may not include the first switching subunit and the second switching subunit, in this case, S1A is the first switching unit, and S1B is the second switching unit.
Therefore, in the embodiment, the wired charging unit and the wireless charging unit share one filtering unit, so that the wired charging and the wireless charging can be switched, the cost, the size and the weight of vehicle components can be reduced, and the spatial layout of the vehicle is optimized.
Embodiments of the present application further provide a vehicle including the rectifying unit as described in the above embodiments or the vehicle-mounted charging device as described in the above embodiments.
It should be noted that, for the sake of simplicity, each device or module embodiment is described as a series of acts, but it should be understood by those skilled in the art that the present application is not limited by the described order of acts, as some steps may be performed in other orders or simultaneously according to the present application. Further, those skilled in the art should also appreciate that the embodiments described in the specification are preferred embodiments and that the acts and modules referred to are not necessarily required in this application.
In the embodiments provided in the present application, it should be understood that the disclosed apparatus may be implemented in other manners. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the above-described modules is merely a logical division, and an actual implementation may have another division, for example, multiple units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection of some interfaces, devices or units, and may be an electric or other form.
The modules described as separate parts may or may not be physically separate, and parts displayed as modules may or may not be physical modules, may be located in one place, or may be distributed on a plurality of network modules. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment.
In addition, functional modules in the embodiments of the present application may be integrated into one processing module, or each of the modules may exist alone physically, or two or more modules are integrated into one module. The integrated module can be realized in a hardware mode, and can also be realized in a software functional module mode.
The foregoing detailed description of the embodiments of the present application has been presented to illustrate the principles and implementations of the present application with specific examples, and the above description of the embodiments is only provided to help understand the present application and its core ideas; meanwhile, for a person skilled in the art, according to the idea of the present application, there may be variations in the specific implementation and application scope, and in summary, the content of the present specification should not be construed as a limitation to the present application.
Claims (10)
1. A rectification unit is applied to a vehicle-mounted charging system, and is characterized in that the vehicle-mounted charging system comprises a wired charging unit, a wireless charging unit and the rectification unit, wherein the rectification unit comprises a first rectification subunit, a second rectification subunit and a third rectification subunit;
the first rectifier subunit is connected with the second rectifier subunit, the second rectifier subunit is connected with the third rectifier subunit, the wired charging unit is respectively connected with the first rectifier subunit and the second rectifier subunit, and the wireless charging unit is respectively connected with the first rectifier subunit and the third rectifier subunit;
the rectifying unit is used for rectifying the current from the wired charging unit or the wireless charging unit.
2. The unit of claim 1, wherein each of the first, second, and third rectifier sub-units comprises at least one rectifier module, respectively;
the at least one rectifying module is used for rectifying the current obtained by the rectifying unit.
3. The unit of claim 2, wherein the rectification unit further comprises a first switching sub-unit and a second switching sub-unit;
the first end of the first switch subunit is connected with the wired charging unit, and the second end of the first switch subunit is connected with the first rectifier subunit or the second rectifier subunit, so as to control the connection relationship between the wired charging unit and the rectifier unit according to the current charging mode, wherein the charging mode comprises a wired charging mode or a wireless charging mode;
the first end of the second switch subunit is connected with the wireless charging unit, and the second end of the second switch subunit is connected with the first rectifying subunit or the third rectifying subunit, and is used for controlling the connection relationship between the wireless charging unit and the rectifying unit according to the current charging mode.
4. The unit of claim 3, wherein the first switching sub-unit comprises a first relay switch and the second switching sub-unit comprises a second relay switch.
5. The unit of any of claims 2-4, wherein the rectification module comprises a diode submodule and a transistor submodule;
the diode sub-module is connected with the transistor sub-module in parallel;
the transistor submodule is used for rectifying the current obtained by the rectifying unit, and the diode submodule is used for protecting the circuit safety of the transistor submodule.
6. The cell of claim 5, wherein the diode submodule comprises a diode and the transistor submodule comprises a field effect transistor.
7. An on-vehicle charging device applied to an on-vehicle charging system, wherein the on-vehicle charging system comprises the on-vehicle charging device, the on-vehicle charging device comprises a wired charging unit, a wireless charging unit, and a rectifying unit according to any one of claims 1 to 6, and the rectifying unit comprises a first rectifying sub-unit, a second rectifying sub-unit and a third rectifying sub-unit;
the first rectifier subunit is connected with the second rectifier subunit, the second rectifier subunit is connected with the third rectifier subunit, the wired charging unit is respectively connected with the first rectifier subunit and the second rectifier subunit, and the wireless charging unit is respectively connected with the first rectifier subunit and the third rectifier subunit;
the wired charging unit and the wireless charging unit are used for acquiring charging current.
8. The apparatus of claim 7, further comprising a filtering unit;
the filtering unit is connected with the rectifying unit and used for filtering the current from the rectifying unit.
9. The apparatus of claim 8, wherein the filter unit comprises a filter capacitor.
10. A vehicle comprising a rectifying unit according to any one of claims 1 to 6 or an on-board charging device according to any one of claims 7 to 9.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110713564.XA CN113335088A (en) | 2021-06-26 | 2021-06-26 | Rectifying unit, vehicle-mounted charging device and vehicle |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110713564.XA CN113335088A (en) | 2021-06-26 | 2021-06-26 | Rectifying unit, vehicle-mounted charging device and vehicle |
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| CN202110713564.XA Pending CN113335088A (en) | 2021-06-26 | 2021-06-26 | Rectifying unit, vehicle-mounted charging device and vehicle |
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