CN217048283U - Charging equipment of electric automobile - Google Patents
Charging equipment of electric automobile Download PDFInfo
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- CN217048283U CN217048283U CN202220220831.XU CN202220220831U CN217048283U CN 217048283 U CN217048283 U CN 217048283U CN 202220220831 U CN202220220831 U CN 202220220831U CN 217048283 U CN217048283 U CN 217048283U
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Abstract
A charging device of an electric automobile comprises a power input end, a main control unit, a dormant power module, a wake-up module, an auxiliary device, a main power supply loop, an auxiliary power supply loop and a control power circuit, wherein the dormant power module, the wake-up module, the auxiliary device, the main power supply loop, the auxiliary power supply loop and the control power circuit are connected with the main control unit; the main power supply loop is used for charging the electric automobile, and the main control unit is connected with the control end of the power supply control switch to control the disconnection and the connection of the main power supply loop; the control power supply circuit comprises a second switch module and a control power supply, and the control power supply is used for supplying power to the main control unit and the auxiliary equipment; the sleep power supply module is used for supplying power to the main control unit in a sleep state; the awakening module is used for sending an awakening signal to the main control unit so as to awaken the main control unit; the main control unit sends a disconnection signal to the second switch module to disconnect the control power supply circuit. The utility model discloses under the standby state that does not charge, the main control unit passes through power supply control switch and cuts off main power supply loop, is the main control unit power supply under the dormant state by the dormancy power module, has reduced electric energy loss.
Description
Technical Field
The utility model relates to an electric automobile field, concretely relates to electric automobile's battery charging outfit.
Background
The rapid development of the electric automobile industry does not leave the technical support in the aspects of the endurance mileage and the charging speed, the endurance mileage is increased by improving the energy density and the electricity storage capacity of a vehicle-mounted battery pack, and the vehicle-mounted electricity storage capacity and the rapid charging of the electric automobile need to be matched with high-power charging equipment. At present, after the electric equipment is charged, the electric equipment enters a standby state after a period of ventilation cooling, most of electric elements in the charging equipment are still in a power-on state, and in the power-on state, the power-on of the electric elements consumes some electric energy and can also shorten the service life of some electric elements.
Disclosure of Invention
An object of the utility model is to overcome prior art's defect, provide an electric automobile's battery charging outfit that power consumption is low, long service life.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the charging equipment of the electric automobile comprises a power input end, a main control unit, auxiliary equipment and a main power supply loop, is used for charging the electric automobile and comprises a power supply control switch, a charging output module and a charging interface detection unit, wherein the power supply control switch is connected between the power input end and the charging output module;
the control power circuit comprises a second switch module and a control power supply, the second switch module is connected between the power input end and the control power supply, the output end of the control power supply is respectively connected with the main control unit and the auxiliary equipment and used for supplying power to the main control unit and the auxiliary equipment, and the control end of the second switch module is connected with the main control unit;
the sleep power supply module is connected with the main control unit and used for supplying power to the main control unit in a sleep state;
the wake-up module is used for sending a wake-up signal to the main control unit so as to wake up the main control unit;
the main control unit is connected with the main power supply loop, the awakening module and the second switch module, can send a disconnection signal to the second switch module to disconnect the control power supply circuit, is powered by the dormant power supply module to enter a dormant state, receives the awakening signal of the awakening module and sends a closing signal to the second switch module to connect the control power supply circuit, and is powered by the control power supply circuit to the main control unit and the auxiliary equipment.
The power supply system further comprises at least one auxiliary power supply loop, wherein the auxiliary power supply loop comprises a first switch module and a functional element, the first switch module is connected between the power supply input end and the functional element, and the main control unit is connected with the control end of the first switch module and used for controlling the first switch module to be disconnected when the main control unit enters the dormant state.
Furthermore, the functional element of at least one auxiliary power supply loop is an auxiliary power supply module, the auxiliary power supply module is connected with the charging interface and used for auxiliary charging, the auxiliary power supply module comprises a BMS power supply, and the output end of the BMS power supply is connected with the charging interface.
Furthermore, the power input end is also connected with a main power switch and a control power switch, the auxiliary power supply loop and the control power circuit are respectively connected with the power input end through the control power switch, and the main power supply loop is connected with the power input end through the main power switch.
Furthermore, the second switch module is a solid-state relay, and a normally open contact of the solid-state relay is connected in series between the control power switch and the input end of the control power supply.
Furthermore, the charging output module comprises an output control unit, at least one charging rectifier module and at least one charging interface, the output control unit, the charging rectifier module and the charging interface are respectively connected with the main control unit, the charging rectifier module is connected between the input end of the output control unit and the power supply control switch, and the charging interfaces are in one-to-one correspondence with the charging rectifier module.
Further, the functional element of at least one auxiliary power supply loop is a cooling module, the first switch module is a second relay, the cooling module is a cooling fan, the second relay is connected between the power input end and the cooling fan, and the second relay starts the cooling fan or stops the cooling fan under the control of the main control unit.
Furthermore, the dormancy power module comprises a plurality of storage batteries forming the combined battery, the output end of the dormancy power module is connected with the dormancy power interface of the main control unit and used for supplying power to the main control unit in the dormancy state, and the main control unit can charge the combined battery in the charging state.
Further, still include the photovoltaic board of being connected with dormancy power module, the input at dormancy power module is connected to the photovoltaic board for charge for dormancy power module.
Furthermore, the main control unit does not have a charging task within the preset standby waiting time, and the main control unit controls the second switch module to be disconnected and controls the charging equipment to enter a dormant state; the awakening module comprises a touch screen operation unit, a card reading awakening unit, a network remote awakening unit and a charging interface detection unit, and the main control unit in the dormant state is awakened by operating the touch screen operation unit and/or triggering the card reading awakening unit and/or the network remote awakening unit to receive an awakening instruction and/or detecting a connection signal by the charging interface detection unit.
The utility model discloses an electric automobile's battery charging outfit, in the stand-by state that does not charge, the main control unit passes through power supply control switch and cuts off main power supply loop, be the main control unit and the auxiliary assembly power supply by control power supply, most electrical components are in the outage state among the battery charging outfit, electric energy loss has been reduced, do benefit to increase of service life, further still be equipped with the dormancy power module, can further cut off control power supply circuit, be the main control unit power supply by the dormancy power module, electric energy loss has further been reduced.
In addition, the dormancy power module is charged by the main control unit when charging state, for the main control unit power supply when dormancy state, especially, the dormancy power module can also charge through the photovoltaic board, effectively prolongs whole battery charging outfit's dormancy stand-by time.
In addition, an auxiliary power supply module and/or a cooling module are provided for accelerating charging in cooperation with the main power supply loop and for cooling the charging device.
Drawings
Fig. 1 is a schematic diagram of a charging apparatus for an electric vehicle according to the present invention;
fig. 2 is a schematic diagram of a charging apparatus for an electric vehicle according to the present invention;
fig. 3 is a schematic diagram of the charging apparatus for electric vehicles according to the present invention (omitting the hibernation power supply module and the photovoltaic panel).
Detailed Description
The following describes a specific embodiment of a charging device for an electric vehicle according to the present invention with reference to the embodiments shown in fig. 1 to 3. The utility model discloses an electric automobile's battery charging outfit is not limited to the description of following embodiment.
A charging device of an electric automobile comprises a power input end, a main control unit, a dormant power module, a wake-up module, an auxiliary device, a main power supply loop, an auxiliary power supply loop and a control power circuit, wherein the dormant power module, the wake-up module, the auxiliary device, the main power supply loop, the auxiliary power supply loop and the control power circuit are connected with the main control unit; the main power supply loop is connected with the power supply input end and used for charging the electric automobile and comprises a power supply control switch, a charging output module and a charging interface detection unit, wherein the power supply control switch is connected between the power supply input end and the charging output module; the control power circuit comprises a second switch module and a control power supply, the second switch module is connected between the power input end and the control power supply, the output end of the control power supply is respectively connected with the main control unit and the auxiliary equipment and used for supplying power to the main control unit and the auxiliary equipment, and the control end of the second switch module is connected with the main control unit; the sleep power supply module is connected with the main control unit and used for supplying power to the main control unit in a sleep state; the wake-up module is used for sending a wake-up signal to the main control unit so as to wake up the main control unit; the main control unit is connected with the main power supply loop, the awakening module and the second switch module, can send a disconnection signal to the second switch module to disconnect the control power supply circuit, supplies power to the main control unit by the dormant power supply module to enter a dormant state, receives the awakening signal of the awakening module and sends a closing signal to the second switch module to switch on the control power supply circuit, and supplies power to the main control unit and the auxiliary equipment by the control power supply circuit.
The utility model discloses an electric automobile's battery charging outfit, in the stand-by state that does not charge, the main control unit passes through power supply control switch and cuts off main power supply loop, be main control unit and auxiliary assembly power supply by control power supply, most electrical components are in the outage state among the battery charging outfit, the power consumption has been reduced, do benefit to increase of service life, further still be equipped with the dormancy power supply module, can further cut off control power supply circuit, be the main control unit power supply by the dormancy power supply module, the power consumption has further been reduced.
In an embodiment provided with reference to fig. 1 to 3, the charging device of the electric vehicle includes a power input end, a main control unit, and an auxiliary device, a wake-up module and a sleep power module respectively connected to the main control unit, wherein the power input end is connected to a main power supply circuit, an auxiliary power supply circuit and a control power circuit,
the main power supply loop comprises a power supply control switch and a charging output module, the power supply control switch is connected between the power supply input end and the charging output module, and the charging interface detection unit and the charging output module are respectively connected with the main control unit; the auxiliary power supply loop comprises a first switch module and a functional element, the functional element is used for realizing corresponding auxiliary functions, the first switch module is connected between the power supply input end and the functional element, and the main control unit is connected with the control end of the first switch module to control the disconnection and the conduction of the first switch module and is used for controlling the disconnection of the first switch module when entering a dormant state; the control power supply circuit comprises a second switch module and a control power supply, the second switch module is connected between the power supply input end and the control power supply, and the output end of the control power supply is respectively connected with the main control unit and the auxiliary equipment and used for supplying power to the main control unit and the auxiliary equipment. The power supply control switch of the main power supply loop, the first switch module of the auxiliary power supply loop and the second switch module of the control power supply circuit are respectively connected with the main control unit. The auxiliary device may be an auxiliary circuit or device such as a touch screen.
When charging is needed, the main control unit controls the power supply control switch to be closed so as to conduct the main power supply circuit, the charging output module charges the electric automobile connected to the charging output module to enter a charging state, the main control unit conducts the auxiliary power supply circuit and the control power supply circuit through the first switch module and the second switch module respectively at the moment, and the main control unit and the auxiliary equipment are powered by the control power supply circuit at the moment.
When no charging task is available, the main control unit disconnects the main power supply loop through the power supply control switch to enter a standby state, and simultaneously, the auxiliary power supply loop can also be disconnected through the first switch module, at the moment, the charging output module of the main power supply loop is not charged outwards, most electrical elements in the charging equipment are in a power-off state, the electric energy loss is reduced, and at the moment, the main control unit and the auxiliary equipment are powered by the control power supply circuit. After the standby is carried out for a certain time, the main control unit controls the second switch module to disconnect the control power supply circuit, the dormant power supply module supplies power to the main control unit, and the main control unit enters a dormant state, so that the electric energy loss is further reduced.
Preferably, the output end of the power input end is connected with a main power switch and a control power switch (the main power switch and the control power switch are in a closed state for a long time and can be disconnected only during shutdown or maintenance, and the main power switch and the control power switch are usually operated manually), the auxiliary power supply loop and the control power circuit are respectively connected with the power input end through the control power switch, and the control power switch plays a role in on-off protection for the auxiliary power supply loop and the control power circuit; the main power supply loop is connected to the power supply input end through the main power supply switch, and the main power supply switch plays a role in on-off protection for the main power supply loop.
In this embodiment, it is preferable that the main control unit is an MCU, the main control unit presets a standby waiting time, timing is started in the standby state, if there is no charging task in the standby waiting time, the main control unit controls the charging device to enter a sleep state, and if the main control unit controls the second switch module to be turned off, after charging is completed, the charging device can automatically enter the sleep state after the standby waiting time. In the dormant state, the main control unit enters the standby state when being awakened by the awakening signal of the awakening module, and if the charging task is detected in the standby waiting time, if the charging task is detected by the charging interface detection unit, the main control unit enters the charging state and correspondingly switches on the main power supply loop and the auxiliary power supply loop.
As shown in fig. 1, the main power supply circuit of this embodiment includes a power supply control switch and a charging output module, the power supply control switch of this embodiment is an ac contactor, the main power supply switch is connected to the output end of the power input end, the ac contactor is connected between the main power supply switch and the charging output module, and the main power supply circuit is switched off or on by the ac contactor under the control of the driving signal of the main control unit.
The charging output module comprises an output control unit, at least one charging rectifier module and at least one charging interface, wherein the output control unit, the charging rectifier module and the charging interface are respectively connected with the main control unit, the charging rectifier module is connected between the input end of the output control unit and the alternating current contactor, and the charging interface is connected to the output end of the output control unit and is in one-to-one correspondence with the charging rectifier module. Generally, a plurality of charging rectifier modules are generally combined and arranged in groups, one high-power charging device is generally combined by the plurality of charging rectifier modules, power of the modules is superposed and combined to output charging, and the CAN communication buses of the plurality of charging rectifier modules are connected with the CAN communication buses corresponding to the main control unit to complete bus communication.
In this implementation, the number of the rectifying and charging modules is two, the dc output ends of the two groups of charging rectifying modules are connected with the input end of the output control unit, the output control unit performs power distribution management, the number of the charging interfaces is also two, that is, one ends of the two groups of charging interfaces are respectively connected with the dc bus output end of the charging output control unit, and the other end of the charging interface is connected with the charging interface of the electric vehicle for charging.
As shown in fig. 1 and 2, the control power circuit includes a second switch module and a control power source connected to the second switch module, in this embodiment, the second switch module includes a solid-state relay controlled by the main control unit, a normally open contact of the solid-state relay is connected in series between the control power switch and a power input end of the control power source for closing or opening the control power circuit, an output end of the control power source is connected to the main control unit, when in a sleep state, a driving signal of the main control unit controls the solid-state relay to open the control power circuit, and at this time, the sleep power module supplies power to the main control unit.
As shown in fig. 3, the auxiliary power supply circuit includes a first switch module and a function element connected to the first switch module, the first switch module is connected to the main control unit for switching on or off the auxiliary power supply circuit, so as to activate or deactivate the function element. The charging device of the electric vehicle may include one or more auxiliary power supply circuits.
An embodiment of the auxiliary power supply circuit is that the auxiliary power supply circuit includes at least one auxiliary power supply module, that is, the functional element is an auxiliary power supply module, and the auxiliary power supply module is correspondingly connected between the power input end and the charging interface for auxiliary charging. Specifically, the auxiliary power supply loop of this embodiment includes first switch module and auxiliary power supply module, and the first switch module of this embodiment is first relay, and auxiliary power supply module is the BMS power, the output of BMS power is connected with the interface that charges and is used for auxiliary power supply, and first relay is connected with the main control unit and switches on or off the BMS power under the control of main control unit. Preferably, the BMS power supplies correspond to the charging interfaces one to one, in this embodiment, two sets of auxiliary power supply modules are provided, and the BMS power supply of each auxiliary power supply module is a charging interface auxiliary power supply, and in the charging process, the BMS power supply is mainly used for providing an auxiliary power supply of the vehicle end, for example, providing a power supply for the BMS (battery management system) of the vehicle end, an electric control device of the vehicle, a speaker entertainment device of the vehicle, and the like, and after the charging is finished, the BMS power supply can no longer supply power to the electric vehicle end.
It should be noted that, in this embodiment, the charging rectifying module of the main power supply circuit converts the input high-power AC380V three-phase alternating current into DC200 to 750V adjustable DC voltage according to the voltage required by the electric vehicle during charging, and outputs the DC voltage to the energy storage battery pack at the electric vehicle end for charging; the output control unit is used for randomly distributing DC 200-750V direct-current power supply output by the charging rectification module to different charging interfaces according to control signals sent by the main control unit; the BMS power supply is rectified to convert AC220V AC power to DC12V DC power via AC/DC conversion, and the DC12V DC power is supplied to the fixed charging interface.
Another kind of embodiment of assisting power supply loop does, assist power supply loop to include cooling module, the functional element is cooling module promptly, and the first switch module of this embodiment is the second relay, and the functional module is cooling module promptly and is cooling fan, assist power supply loop to include at least one cooling fan and the second relay of being connected with the main control unit, the second relay starts cooling fan or stops cooling fan under the control of main control unit, and cooling fan is used for cooling down for the battery charging outfit after the completion of charging.
In this embodiment, the auxiliary power supply module and the cooling module may be disposed together, or may be disposed as only one of them, and the first relay and the second relay are respectively connected to the DO end of the main control unit and controlled by the switching value output of the main control unit.
The sleep power supply module comprises a plurality of storage batteries forming a combined battery, the output end of the sleep power supply module is connected with a sleep power supply interface of the main control unit, the combined battery supplies power for the main control unit in a sleep state, and the main control unit can charge the combined battery in a charging state. In this embodiment, the hibernating power module comprises 3 18650 batteries, which have a voltage of 12V and a power storage of about 2500mAh, and can last for a hibernation period of about 1 year after being fully charged once. Furthermore, the input end of the dormancy power supply module is also connected with a photovoltaic panel, and the photovoltaic panel converts the irradiated light source into direct current to supply power for the dormancy power supply module, so that the dormancy standby time of the whole charging equipment can be effectively prolonged.
The wake-up module connected to the main control unit is used for feeding back wake-up signals to the main control unit to enable the main control unit to enter a standby state, the main control unit judges whether a charging task exists, and when the charging task exists, the main control unit is communicated with the main power supply loop and the auxiliary power supply loop to enter a charging state.
The awakening module comprises one or more of a touch screen operation unit, a card reading awakening unit, a network remote awakening unit and a charging interface detection unit, an awakening signal is fed back to the main control unit by the awakening module, so that the main control unit enters a standby state from a dormant state, and the awakening module can also comprise a communication module for transmitting signals in other modes.
In this embodiment, the touch screen operation unit includes a serial touch screen, the serial touch screen is connected to a communication serial port of the main control unit to provide a man-machine interface operation function for the main control unit, and triggers a wake-up signal through a change of a resistance value zone bit on a screen panel, and it should be noted that the serial touch screen is preferably powered by a control power supply; the RFID card reader of the card reading awakening unit reads RFID card information and provides a function of reading RFID for the main control unit, so that the main control unit is awakened to enter a standby state according to the card reading information; the network interface of the network remote wake-up unit is connected with the network interface of the main control unit to provide a communication function for the main control unit, and the network interface is matched with the preset port address of the main control unit to realize remote wake-up; the charging interface detection unit is arranged at the position of a charging interface, whether the charging interface detection unit is connected with an electric automobile or not is detected by the charging interface detection unit, namely whether a charging gun is inserted or not is detected, when the charging interface is connected with the electric automobile, the charging interface detection unit feeds back a wake-up signal to the main control unit to enable the main control unit to enter a charging state, the charging interface detection unit can comprise a micro switch, and the micro switch is triggered when the charging interface is inserted.
The foregoing is a more detailed description of the present invention, taken in conjunction with specific preferred embodiments thereof, and it is not intended that the invention be limited to the specific embodiments thereof. To the utility model discloses to the ordinary skilled person in technical field's the prerequisite that does not deviate from the utility model discloses under the design, can also make a plurality of simple deductions or replacement, all should regard as belonging to the utility model discloses a protection scope.
Claims (10)
1. The utility model provides an electric automobile's battery charging outfit, includes power input end, main control unit and auxiliary assembly, its characterized in that:
the electric vehicle charging system further comprises a main power supply loop, a power supply control switch, a charging output module and a charging interface detection unit, wherein the power supply control switch is connected between the power input end and the charging output module, the charging output module comprises at least one charging interface, the charging interface detection unit is connected with the main control unit and is used for detecting whether the main control unit is connected with the electric vehicle, and the main control unit is connected with the control end of the power supply control switch so as to control the disconnection and the connection of the main power supply loop;
the control power circuit comprises a second switch module and a control power supply, the second switch module is connected between the power input end and the control power supply, the output end of the control power supply is respectively connected with the main control unit and the auxiliary equipment and used for supplying power to the main control unit and the auxiliary equipment, and the control end of the second switch module is connected with the main control unit;
the sleep power supply module is connected with the main control unit and used for supplying power to the main control unit in a sleep state;
the wake-up module is used for sending a wake-up signal to the main control unit so as to wake up the main control unit;
the main control unit is connected with the main power supply loop, the awakening module and the second switch module, can send a disconnection signal to the second switch module to disconnect the control power supply circuit, supplies power to the main control unit by the dormant power supply module to enter a dormant state, receives the awakening signal of the awakening module and sends a closing signal to the second switch module to switch on the control power supply circuit, and supplies power to the main control unit and the auxiliary equipment by the control power supply circuit.
2. The charging apparatus for electric vehicles according to claim 1, characterized in that: the power supply system is characterized by further comprising at least one auxiliary power supply loop, wherein the auxiliary power supply loop comprises a first switch module and a functional element, the first switch module is connected between the power supply input end and the functional element, and the main control unit is connected with the control end of the first switch module and used for controlling the first switch module to be disconnected when the main control unit enters the dormant state.
3. The charging apparatus for electric vehicles according to claim 2, wherein: the functional element of at least one auxiliary power supply loop is an auxiliary power supply module, the auxiliary power supply module is connected with the charging interface and used for auxiliary charging, the auxiliary power supply module comprises a BMS power supply, and the output end of the BMS power supply is connected with the charging interface.
4. The charging apparatus for electric vehicles according to claim 2 or 3, wherein: the power input end is further connected with a main power switch and a control power switch, the auxiliary power supply loop and the control power circuit are respectively connected to the power input end through the control power switch, and the main power supply loop is connected to the power input end through the main power switch.
5. The charging apparatus for electric vehicle according to claim 4, wherein: the second switch module is a solid-state relay, and a normally open contact of the solid-state relay is connected between the control power switch and the input end of the control power supply in series.
6. The charging apparatus for electric vehicles according to claim 2, characterized in that: the charging output module comprises an output control unit, at least one charging rectifying module and at least one charging interface, the output control unit, the charging rectifying module and the charging interface are respectively connected with the main control unit, the charging rectifying module is connected between the input end of the output control unit and the power supply control switch, and the charging interfaces are in one-to-one correspondence with the charging rectifying modules.
7. The charging apparatus for electric vehicles according to claim 2, characterized in that: the functional element of at least one auxiliary power supply loop is a cooling module, the first switch module is a second relay, the cooling module is a cooling fan, the second relay is connected between the power input end and the cooling fan, and the second relay starts the cooling fan or stops the cooling fan under the control of the main control unit.
8. The charging apparatus for electric vehicles according to claim 1, characterized in that: the sleep power supply module comprises a plurality of storage batteries forming a combined battery, the output end of the sleep power supply module is connected with the sleep power supply interface of the main control unit and used for supplying power to the main control unit in a sleep state, and the main control unit can charge the combined battery in a charging state.
9. The charging apparatus for electric vehicles according to claim 1 or 8, wherein: the photovoltaic panel is connected to the input end of the dormant power module and used for charging the dormant power module.
10. The charging apparatus for electric vehicles according to claim 1, characterized in that: the main control unit does not have a charging task within the preset standby waiting time, and controls the second switch module to be disconnected and the charging equipment to enter a dormant state; the awakening module comprises a touch screen operation unit, a card reading awakening unit, a network remote awakening unit and a charging interface detection unit, and the main control unit in the dormant state is awakened by operating the touch screen operation unit and/or triggering the card reading awakening unit and/or the network remote awakening unit to receive an awakening instruction and/or detecting a connection signal by the charging interface detection unit.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202220220831.XU CN217048283U (en) | 2022-01-26 | 2022-01-26 | Charging equipment of electric automobile |
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| CN202220220831.XU CN217048283U (en) | 2022-01-26 | 2022-01-26 | Charging equipment of electric automobile |
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