CN115179787A - Vehicle-mounted charger with external awakening function - Google Patents

Vehicle-mounted charger with external awakening function Download PDF

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Publication number
CN115179787A
CN115179787A CN202210742793.9A CN202210742793A CN115179787A CN 115179787 A CN115179787 A CN 115179787A CN 202210742793 A CN202210742793 A CN 202210742793A CN 115179787 A CN115179787 A CN 115179787A
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CN
China
Prior art keywords
vehicle
external
input
unit
connector
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202210742793.9A
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Chinese (zh)
Inventor
余培
符夏生
王兆民
吴建侠
李升福
黄建伟
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
HANGZHOU AODI ELECTRONIC CONTROL CO Ltd
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HANGZHOU AODI ELECTRONIC CONTROL CO Ltd
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Application filed by HANGZHOU AODI ELECTRONIC CONTROL CO Ltd filed Critical HANGZHOU AODI ELECTRONIC CONTROL CO Ltd
Priority to CN202210742793.9A priority Critical patent/CN115179787A/en
Publication of CN115179787A publication Critical patent/CN115179787A/en
Pending legal-status Critical Current

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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
    • B60L53/20—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 converters located in the vehicle
    • 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
    • H02J7/00032—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by data exchange
    • 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
    • H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
    • 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
    • H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
    • H02J7/00309—Overheat or overtemperature protection
    • 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
    • H02J7/0047—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with monitoring or indicating devices or circuits
    • H02J7/0048—Detection of remaining charge capacity or state of charge [SOC]
    • 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
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K5/00—Casings, cabinets or drawers for electric apparatus
    • H05K5/02—Details
    • H05K5/0213—Venting apertures; Constructional details thereof
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K5/00—Casings, cabinets or drawers for electric apparatus
    • H05K5/02—Details
    • H05K5/0217—Mechanical details of casings
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K7/00—Constructional details common to different types of electric apparatus
    • H05K7/20—Modifications to facilitate cooling, ventilating, or heating
    • H05K7/2089—Modifications to facilitate cooling, ventilating, or heating for power electronics, e.g. for inverters for controlling motor
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K7/00—Constructional details common to different types of electric apparatus
    • H05K7/20—Modifications to facilitate cooling, ventilating, or heating
    • H05K7/2089—Modifications to facilitate cooling, ventilating, or heating for power electronics, e.g. for inverters for controlling motor
    • H05K7/209—Heat transfer by conduction from internal heat source to heat radiating structure
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K7/00—Constructional details common to different types of electric apparatus
    • H05K7/20—Modifications to facilitate cooling, ventilating, or heating
    • H05K7/2089—Modifications to facilitate cooling, ventilating, or heating for power electronics, e.g. for inverters for controlling motor
    • H05K7/20909—Forced ventilation, e.g. on heat dissipaters coupled to components
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/70—Energy storage systems for electromobility, e.g. batteries
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/10—Technologies relating to charging of electric vehicles
    • Y02T90/14—Plug-in electric vehicles

Landscapes

  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)

Abstract

The invention discloses a vehicle-mounted charger with an external awakening function, which comprises a vehicle-mounted charger body and a DC converter, wherein the vehicle-mounted charger body comprises a control unit, an input-output unit, a power unit and a low-voltage auxiliary unit, the input-output unit is used for connecting external alternating current and outputting direct current to an external power battery, the power unit is used for completing conversion from alternating current to high-voltage direct current to low-voltage direct current, and the low-voltage auxiliary unit is used as an auxiliary power supply; the AC input connector, the input/output connector and the DC output positive connector are respectively connected with the power unit, the signal connector is connected with the control unit, and an external enabling wake-up pin is arranged in the signal connector; the upper portion of casing is provided with heat dissipation mechanism, the inside of casing still is provided with supplementary unit of awakening up. According to the invention, the main control unit MCU is awakened to wait for an instruction of an external battery management system when the OBC is dormant or the charging gun is not accessed through the external enable awakening pin.

Description

Vehicle-mounted charger with external awakening function
Technical Field
The invention relates to the technical field of vehicle-mounted motor machines, in particular to a vehicle-mounted charger with an external awakening function.
Background
In a new energy automobile, a vehicle-mounted charger is required to be carried to safely and automatically charge a power battery, and the charger can dynamically adjust charging current or voltage parameters according to data provided by a Battery Management System (BMS), execute corresponding actions and complete a charging process. In order to reduce power consumption, an on-board charger (OBC) enters a dormant state when the on-board charger is not charged, if the on-board charger needs to be recharged, a Main Control Unit (MCU) of the charger needs to be awakened so as to facilitate communication of an external Battery Management System (BMS).
Disclosure of Invention
The invention aims to provide a vehicle-mounted charger with an external awakening function, so as to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: a vehicle-mounted charger with an external awakening function comprises a vehicle-mounted charger body and a DC converter, wherein the vehicle-mounted charger body comprises a control unit, an input-output unit, a power unit and a low-voltage auxiliary unit, the input-output unit is used for connecting external alternating current and outputting direct current to an external power battery, the power unit is connected with the input-output unit and used for completing conversion from alternating current to high-voltage direct current to low-voltage direct current, and the low-voltage auxiliary unit is used as an auxiliary power supply; the input and output unit comprises an AC input connector, a signal connector, an input and output connector and a DC output positive electrode connector, the AC input connector, the input and output connector and the DC output positive electrode connector are respectively connected with the power unit, the signal connector is connected with the control unit, and an external enabling wake-up pin is arranged in the signal connector; the upper portion of casing is provided with heat dissipation mechanism, heat dissipation mechanism is connected with the control unit, the inside of casing still is provided with supplementary awakening unit for when the vehicle did not switch on or the rifle that charges was not gone up, awaken up the control unit in order to wait for outside battery management system instruction.
Preferably, the control unit includes a main control unit, the main control unit is connected to the external wake-up enabling pin, and the main control unit receives a high level signal input by the external wake-up enabling pin, and then ends the sleep state to wait for an external battery management system command.
Preferably, the auxiliary wake-up unit comprises a communication module and an auxiliary wake-up module, the auxiliary wake-up module is connected with the control unit and the external enable wake-up pin, the communication module is connected with the auxiliary wake-up module, the auxiliary wake-up module is connected with the low-voltage auxiliary unit, and electric energy is obtained through the low-voltage auxiliary unit;
preferably, the auxiliary awakening module comprises a single chip microcomputer and an expansion storage module connected with the single chip microcomputer.
Preferably, the input/output connector is an OBC output connector.
Preferably, the power unit comprises a power factor correction circuit and a resonant conversion circuit connected with the power factor correction circuit, an input end of the power factor correction circuit is connected with the AC input connector, and an output end of the resonant conversion circuit is connected with the input-output connector and the DC output positive electrode connector respectively.
Preferably, the input/output connector is a DC input connector, and the input/output connector is connected to the resonant conversion circuit.
Preferably, the shell comprises a base and a shell, and one side of the shell is provided with a vent valve which is a single valve.
Preferably, a heat-conducting shell body is arranged inside the shell, a temperature sensor is arranged inside the heat-conducting shell body, the temperature sensor is connected with the main control unit, and the signal connector is connected with an external vehicle-mounted computer;
the heat conducting shell body is provided with a plurality of fixing grooves in a die forming mode, the fixing grooves are matched with the vehicle-mounted charger body and the DC converter in the axial direction and used for fixing and wrapping electronic devices on the charger and the DC converter, the bottoms of the fixing grooves are sealed by arranging heat conducting fins, a heat conducting plate is arranged on the upper side of the heat conducting shell body, a through hole is formed in the heat conducting plate, and a guide pipe is arranged in the through hole; the middle part of the honeycomb duct is connected with a connection valve, the upper part of the honeycomb duct penetrates through the shell and extends to the bottom of the cooling fan, the connection valve is an electromagnetic valve, and the connection valve is connected with the main control unit.
Preferably, a plurality of heat dissipation holes are uniformly formed in the heat conduction plate.
Preferably, the heat dissipation mechanism comprises a heat dissipation fan and a plurality of heat dissipation fins arranged around the heat dissipation fan, the heat dissipation fins are connected with the surface of the shell, an air opening matched with the heat dissipation fan is formed in the upper portion of the shell, the diameter of the air opening is smaller than that of the flow guide pipe, and the upper portion of the flow guide pipe is connected with the surface of the upper shell on the outer side of the air opening.
Compared with the prior art, the invention has the beneficial effects that:
1. the invention is provided with a main control unit, which is connected with an external enable wake-up pin 3; when the vehicle-mounted charger body is in dormancy or the CP is not connected, the main control unit is awakened after a high level is input through the external enabling awakening pin, the dormant state is finished, and an external battery management system instruction is waited.
2. The auxiliary awakening module is connected with the low-voltage auxiliary unit, and electric energy is obtained through the low-voltage auxiliary unit; after receiving the signal, the communication module sends a signal to the auxiliary awakening module, and the auxiliary awakening module receives the signal; therefore, a user can remotely awaken the main control unit through the control terminal connected with the communication module, the main control unit is communicated with the external BMS to acquire data information of the power battery, such as electric quantity and endurance information, and therefore the electric quantity information of a vehicle can be acquired without entering the vehicle.
3. According to the invention, the heat conduction shell mold is formed with a plurality of fixing grooves, the bottoms of the fixing grooves are sealed by mounting heat conduction sheets, and a plurality of heat dissipation holes are uniformly formed in the heat conduction sheets so as to ensure heat dissipation; the heat conducting plate is arranged on the upper side of the heat conducting shell, the heat conducting shell in contact with the components in the main control unit guides out heat, radiating holes formed in the heat conducting plate facilitate heat radiation, the heat of the heat conducting shell is transmitted to the shell, and the heat is quickly guided out through radiating fins arranged on the surface of the shell; after the heat radiation fan is started, hot air on the lower side of the heat conduction plate is pumped out, the air pressure difference on the two sides of the ventilation valve reaches a set value and then is opened, and external air enters the heat conduction shell, so that the exchange of the internal air and the external air can be realized.
Drawings
Fig. 1 is an exploded view of the overall structure of a vehicle-mounted charger with an external wake-up function according to the present invention;
FIG. 2 is a front view of the assembly structure of the present invention;
FIG. 3 isbase:Sub>A cross-sectional view taken along line A-A of FIG. 2 in accordance with the present invention;
FIG. 4 is a top view of the present invention;
FIG. 5 is a schematic view of the heat conductive housing and heat conductive plate mounting structure of the present invention;
FIG. 6 is a block diagram of the modules of the present invention.
In the figure, the vehicle-mounted charger body 1, the control unit 101, the input/output unit 102, the power unit 103, the low-voltage auxiliary unit 104, the DC converter 2, the external enable wake-up pin 3, the housing 4, the auxiliary wake-up unit 5, the AC input connector 1021, the signal connector 1022, the input/output connector 1023, the DC output positive connector 1024, the auxiliary wake-up unit 5, the communication module 501, the auxiliary wake-up module 502, the fixing groove 6, the heat-conducting fins 7, the flow guide pipe 8, the heat-radiating mechanism 9, the heat-radiating fins 901 and the ventilation valve 10.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "sleeved/connected," "connected," and the like are to be construed broadly, e.g., "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in a specific case to those of ordinary skill in the art.
Referring to fig. 1-6, the present invention provides a technical solution: a vehicle-mounted charger with an external awakening function comprises a vehicle-mounted charger body 1, a DC converter 2 and a shell 4, wherein the shell 4 comprises a base 401 and a shell 402, one side of the shell 402 is provided with a vent valve 10, the vent valve 10 is a single valve, a heat-conducting shell 11 is arranged inside the shell 402, a temperature sensor is arranged inside the heat-conducting shell 11, the temperature sensor is connected with a main control unit 1011, and a signal connector 1022 is connected with an external vehicle-mounted computer;
the vehicle-mounted charger body 1 comprises a control unit 101, an input/output unit 102, a power unit 103 and a low-voltage auxiliary unit 104, wherein the input/output unit 102 is used for connecting external alternating current and outputting direct current to an external power battery, the power unit 103 comprises a power factor correction circuit and a resonance conversion circuit connected with the power factor correction circuit, the input end of the power factor correction circuit is connected with an AC input connector 1021, and the output end of the resonance conversion circuit is respectively connected with an input/output connector 1023 and a DC output positive electrode connector 1024 to be used as an auxiliary power supply; the AC input connector 1021, the input/output connector 1023, and the DC output positive electrode connector 1024 are connected to the power unit 103, the signal connector 1022 is connected to the control unit 101, and the external enable wake-up pin 3 is installed in the signal connector 1022;
the heat dissipation mechanism 9 is connected with the control unit 101, and the inside of the housing 4 is further installed with an auxiliary wake-up unit 5 for waking up the control unit 101 to wait for an instruction of an external battery management system when the vehicle is not powered on or the charging gun is not connected.
The main control unit 1011 is connected to an external enable wake-up pin 3; in use, when the vehicle-mounted charger body 1 enters a sleep state or the CP is not connected, the main control unit 1011 is waken up after the external enable wake-up pin 3 inputs a high level, the sleep state is ended, an external battery management system instruction is waited, the input high level range is 3 to 18V, the duration time is not less than 0.5 second, and after the high level is cancelled, no alternating current is input after more than 10 minutes, the vehicle-mounted charger body reenters the sleep state.
The auxiliary awakening module 502 is connected with the control unit 101 and the external enable awakening pin 3, the communication module 501 is connected with the auxiliary awakening module 502, the auxiliary awakening module 502 is connected with the low-voltage auxiliary unit 104, and electric energy is obtained through the low-voltage auxiliary unit 104; the communication module 501 can be a bluetooth module, after receiving the signal, the communication module 501 sends a signal to the auxiliary wake-up module 502, after receiving the signal, the auxiliary wake-up module 502 sends a level signal to the main control unit 1011 through the P0 pin to wake up the main control unit 1011, and the P0 pin can connect a pull-up resistor to ensure the output of high level. In this way, a user can wake up the main control unit 1011 remotely through the control terminal connected with the communication module 501, the main control unit 1011 establishes communication with an external BMS, and data information of the power battery, such as electric quantity and endurance information, is acquired, so that the electric quantity information of the vehicle can be acquired through the vehicle-mounted computer without entering the vehicle.
The fixing groove 6 in the heat conducting shell 11 is matched with the vehicle-mounted charger body 1 and the DC converter 2, the bottom of the fixing groove 6 is sealed by installing a heat conducting sheet 7, and a plurality of heat dissipation holes are uniformly formed in the heat conducting sheet 7 to ensure heat dissipation; a heat conducting plate is arranged on the upper side of the heat conducting shell 11, and a flow guide pipe 8 is arranged in a through hole in the heat conducting plate; the middle part of the flow guide pipe 8 is connected with a communicating valve, the upper part of the flow guide pipe 8 penetrates through the shell 402 and extends to the bottom of the cooling fan, and the main control unit 1011 can control the opening and closing of the communicating valve; the heat conducting shell 11 contacted with the components in the main control unit 1011 conducts heat, the radiating holes formed on the heat conducting fins 7 are convenient for radiating heat, the heat of the heat conducting shell 11 is transferred to the shell 402, and the heat is quickly conducted out through the radiating fins 901 arranged on the surface of the shell 402;
the diameter of the air opening formed in the upper portion of the outer shell 402 is smaller than that of the flow guide pipe 8, the upper portion of the flow guide pipe 8 is connected with the surface of the upper shell outside the air opening, hot air on the lower side of the heat conduction plate is extracted after the cooling fan is started, the air pressure difference between the two sides of the vent valve 10 reaches a set value and then is opened, external air enters the heat conduction shell 11, exchange of internal air and external air is achieved, and the opening of the connection valve is kept in the process.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (10)

1. The utility model provides a vehicle-mounted machine that charges with function is awaken up to outside, includes vehicle-mounted machine body (1) that charges, DC converter (2) and casing (4), its characterized in that: the vehicle-mounted charger body (1) comprises a control unit (101), an input-output unit (102), a power unit (103) and a low-voltage auxiliary unit (104), wherein the input-output unit (102) is used for connecting external alternating current and outputting direct current to an external power battery, the power unit (103) is connected with the input-output unit (102) and used for completing conversion from alternating current to high-voltage direct current to low-voltage direct current, and the low-voltage auxiliary unit (104) is used as an auxiliary power supply; the input/output unit (102) comprises an AC input connector (1021), a signal connector (1022), an input/output connector (1023) and a DC output positive connector (1024), wherein the AC input connector (1021), the input/output connector (1023) and the DC output positive connector (1024) are respectively connected with the power unit (103), the signal connector (1022) is connected with the control unit (101), and an external enable wake-up pin (3) is arranged in the signal connector (1022); casing (4) upper portion is provided with heat dissipation mechanism (9), heat dissipation mechanism (9) are connected with the control unit (101), the inside of casing (4) still is provided with supplementary awakening unit (5) for when the vehicle does not switch on or the rifle that charges is not when not connected, awaken up the control unit (101) in order to wait for outside battery management system instruction.
2. The vehicle-mounted charger with the external wake-up function according to claim 1, characterized in that: the control unit (101) comprises a main control unit (1011), the main control unit (1011) is connected with an external enable wake-up pin (3), and after the main control unit (1011) receives a high-level signal input by the external enable wake-up pin (3), the sleep state is finished, and an external battery management system instruction is waited.
3. The vehicle-mounted charger with the external wake-up function according to claim 1, characterized in that: the auxiliary awakening unit (5) comprises a communication module (501) and an auxiliary awakening module (502), the auxiliary awakening module (502) is connected with the control unit (101) and the external enable awakening pin (3), the communication module (501) is connected with the auxiliary awakening module (502), the auxiliary awakening module (502) is connected with the low-voltage auxiliary unit (104), and electric energy is obtained through the low-voltage auxiliary unit (104);
the auxiliary awakening module (502) comprises a single chip microcomputer, an expansion storage module and a pull-up resistor, wherein the expansion storage module is connected with the single chip microcomputer.
4. The vehicle-mounted charger with the external wake-up function according to claim 1, characterized in that: the input/output connector (1023) is an OBC output connector.
5. The vehicle-mounted charger with the external wake-up function according to claim 1, characterized in that: the power unit (103) comprises a power factor correction circuit and a resonance conversion circuit connected with the power factor correction circuit, wherein the input end of the power factor correction circuit is connected with an AC input connector (1021), and the output end of the resonance conversion circuit is respectively connected with an input and output connector (1023) and a DC output positive electrode connector (1024).
6. The vehicle-mounted charger with the external wake-up function according to claim 1, characterized in that: the input and output connector (1023) is a DC input connector, and the input and output connector (1023) is connected with the resonance transformation circuit.
7. The vehicle-mounted charger with the external wake-up function according to claim 1, characterized in that: the shell (4) comprises a base (401) and a shell (402), one side of the shell (402) is provided with a vent valve (10), and the vent valve (10) is a single valve.
8. The vehicle-mounted charger with the external wake-up function according to claim 7, characterized in that: a heat conduction shell (11) is arranged inside the shell (402), a temperature sensor is arranged inside the heat conduction shell (11), the temperature sensor is connected with a main control unit (1011), and the signal connector (1022) is connected with an external vehicle-mounted computer;
the heat conduction shell (11) is molded with a plurality of fixing grooves (6), the fixing grooves (6) are matched with the vehicle-mounted charger body (1) and the DC converter (2), the bottom of each fixing groove (6) is sealed by arranging a heat conduction sheet (7), a heat conduction plate is arranged on the upper side of the heat conduction shell (11), a through hole is formed in the heat conduction plate, and a flow guide pipe (8) is arranged in the through hole; the middle part of the flow guide pipe (8) is connected with a connection and through valve, the upper part of the flow guide pipe (8) penetrates through the outer shell (402) and extends to the bottom of the cooling fan, the connection and through valve is an electromagnetic valve, and the connection and through valve is connected with a main control unit (1011).
9. The vehicle-mounted charger with the external wake-up function according to claim 8, characterized in that: a plurality of heat dissipation holes are uniformly formed in the heat conducting fin (7).
10. The vehicle-mounted charger with the external wake-up function according to claim 1, characterized in that: the heat dissipation mechanism (9) comprises a heat dissipation fan and a plurality of heat dissipation fins (901) arranged around the heat dissipation fan, the heat dissipation fins (901) are connected with the surface of the shell (402), an air opening matched with the heat dissipation fan is formed in the upper portion of the shell (402), the diameter of the air opening is smaller than that of the flow guide pipe (8), and the upper portion of the flow guide pipe (8) is connected with the surface of the upper shell on the outer side of the air opening.
CN202210742793.9A 2022-06-28 2022-06-28 Vehicle-mounted charger with external awakening function Pending CN115179787A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202210742793.9A CN115179787A (en) 2022-06-28 2022-06-28 Vehicle-mounted charger with external awakening function

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202210742793.9A CN115179787A (en) 2022-06-28 2022-06-28 Vehicle-mounted charger with external awakening function

Publications (1)

Publication Number Publication Date
CN115179787A true CN115179787A (en) 2022-10-14

Family

ID=83515778

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202210742793.9A Pending CN115179787A (en) 2022-06-28 2022-06-28 Vehicle-mounted charger with external awakening function

Country Status (1)

Country Link
CN (1) CN115179787A (en)

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