CN215705726U - New energy automobile and high-voltage electric control assembly thereof - Google Patents

New energy automobile and high-voltage electric control assembly thereof Download PDF

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Publication number
CN215705726U
CN215705726U CN202122006429.XU CN202122006429U CN215705726U CN 215705726 U CN215705726 U CN 215705726U CN 202122006429 U CN202122006429 U CN 202122006429U CN 215705726 U CN215705726 U CN 215705726U
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voltage
integrated
direct current
input
circuit
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刘登科
刘鹏飞
张辉
吴壬华
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Shenzhen Shinry Technologies Co Ltd
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Shenzhen Shinry Technologies Co Ltd
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/60Other road transportation technologies with climate change mitigation effect
    • Y02T10/70Energy storage systems for electromobility, e.g. batteries
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/60Other road transportation technologies with climate change mitigation effect
    • Y02T10/7072Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T90/00Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/10Technologies relating to charging of electric vehicles
    • Y02T90/14Plug-in electric vehicles

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  • Electric Propulsion And Braking For Vehicles (AREA)

Abstract

The utility model provides a new energy automobile and a high-voltage electric control assembly thereof. The utility model provides a high-voltage electric control assembly of a new energy automobile, which comprises an integrated control loop and an integrated conversion loop shared by a vehicle-mounted charger, a direct-current converter, a vehicle-mounted heater and a wireless charger; the wireless charger further comprises an independently arranged receiving coil; the integrated conversion circuit converts alternating current input into the vehicle-mounted charger into high-voltage direct current or converts alternating current output by the receiving coil into high-voltage direct current under the control of the integrated control circuit; the integrated conversion circuit converts the high-voltage direct current input into the direct current converter into low-voltage direct current under the control of the integrated control circuit; the integrated conversion loop converts the electric energy input into the vehicle-mounted heater into heat energy under the control of the integrated control loop. The utility model can save power electronic elements, thereby reducing the cost and the equipment size and saving the space of the automobile.

Description

New energy automobile and high-voltage electric control assembly thereof
Technical Field
The utility model relates to the technical field of new energy automobiles, in particular to a high-voltage electric control assembly and a new energy automobile.
Background
The new energy automobile mainly comprises three cores, namely: battery, motor, automatically controlled. The electric control part mainly comprises a high-voltage direct-current Power distribution part, an On-Board charger (OBC), a direct-current-direct-current converter (DC-to-DC converter, DCDC), an On-Board Heater (OBH) and a Wireless Power Transmission (WPT). At present, the WPT of the wireless charger is generally independently arranged in a high-voltage electric control assembly, and the WPT is not beneficial to saving the space of an automobile.
SUMMERY OF THE UTILITY MODEL
In view of the defects of the prior art, the utility model aims to provide a high-voltage electric control assembly and a new energy automobile, which integrate a plurality of components of the new energy automobile and save power electronic elements, thereby reducing the cost and equipment size and saving the automobile space.
The embodiment of the utility model discloses a high-voltage electric control assembly of a new energy automobile, which comprises an integrated control loop and an integrated conversion loop, wherein the integrated control loop and the integrated conversion loop are shared by a vehicle-mounted charger, a direct-current converter, a vehicle-mounted heater and a wireless charger; the wireless charger further comprises an independently arranged receiving coil;
the integrated conversion circuit converts alternating current input into the vehicle-mounted charger into high-voltage direct current or converts alternating current output by the receiving coil into high-voltage direct current under the control of the integrated control circuit; the integrated conversion circuit converts the high-voltage direct current input into the direct current converter into low-voltage direct current under the control of the integrated control circuit; the integrated conversion loop converts the electric energy input into the vehicle-mounted heater into heat energy under the control of the integrated control loop.
In a possible implementation manner of the first aspect, the integrated control loop includes N control signal output terminals, the integrated conversion loop includes a switch module, and a plurality of switch devices in the switch module are respectively connected to the N control signal output terminals.
In one possible implementation manner of the first aspect, the new energy automobile comprises a high-voltage battery, the integrated conversion loop comprises a first input end and a first output end, and the first input end is used for being connected with an external power grid and receiving alternating current of the external power grid; the first output end is used for being connected with the high-voltage battery and outputting high-voltage direct current to the high-voltage battery.
In a possible implementation manner of the first aspect, the new energy vehicle further includes a low-voltage battery, and the integrated conversion loop further includes a second input end and a second output end, where the second input end is configured to be connected to the high-voltage battery and receive the high-voltage direct current of the high-voltage battery; and the second output end is used for being connected with the low-voltage battery and inputting low-voltage direct current to the low-voltage battery.
In a possible implementation manner of the first aspect, the integrated conversion circuit further includes a third output end, and the third output end is used for outputting heat energy to the inside of the new energy automobile.
In a possible implementation manner of the first aspect, the integrated conversion circuit further includes a fourth input terminal and a fourth output terminal, the fourth input terminal is configured to be connected to the receiving coil and receive the alternating current output by the receiving coil; and the fourth output end is used for being connected with the high-voltage battery and outputting high-voltage direct current to the high-voltage battery.
In a possible implementation manner of the first aspect, the integrated conversion circuit further includes a power factor correction circuit, a dc conversion circuit, and a filter circuit, the first input end is disposed in the power factor correction circuit, the first output end is disposed in the switch module, the ac power of the external power grid is input from the first input end, and is converted into the high-voltage dc power through the power factor correction circuit, the dc conversion circuit, the filter circuit, and the switch module in sequence, and the high-voltage dc power is output from the first output end to the high-voltage battery.
In a possible implementation manner of the first aspect, the dc conversion circuit further includes an inverter unit, a resonance unit, a transformer, and a rectifier unit, the fourth input end is disposed in the resonance unit, the fourth output end is disposed in the switch module, the ac output by the receiving coil is input from the fourth input end, and is converted into the high-voltage dc by passing through the resonance unit, the transformer, the rectifier unit, the filter circuit, and the switch module in sequence, and the high-voltage dc is output from the fourth output end to the high-voltage battery.
In a possible implementation manner of the first aspect, the new energy automobile further includes a direct current charging interface, the integrated conversion loop further includes a fifth input end and a fifth output end, and the fifth input end is used for being connected with the direct current charging interface and receiving direct current input from the outside; and the fifth output end is used for being connected with the high-voltage battery and outputting high-voltage direct current to the high-voltage battery.
In a second aspect, the present invention further provides a new energy automobile, which includes a battery assembly, a motor assembly, and the high-voltage electronic control assembly according to any one of the embodiments of the first aspect, where the motor assembly and the battery assembly are both connected to the high-voltage electronic control assembly.
In the embodiment of the utility model, the vehicle-mounted charger, the direct current converter, the vehicle-mounted heater and the wireless charger in the high-voltage electric control assembly of the new energy automobile are integrated, so that the functions of the components are realized through the shared integrated control circuit and the shared integrated conversion circuit, and power electronic elements can be saved while the functions of the components are not influenced, thereby reducing the cost and the equipment size, saving the automobile space and being convenient for management and after sale.
Drawings
Fig. 1 is a schematic system structure diagram of a new energy automobile;
FIG. 2 is a schematic diagram of a charging principle of a wireless charger;
fig. 3 is a schematic structural diagram of a high-voltage electric control assembly of a new energy automobile provided by the utility model;
fig. 4 is a schematic structural diagram of a high-voltage electric control assembly of another new energy automobile provided by the utility model;
fig. 5 is a schematic structural diagram of a dc conversion circuit according to the present invention.
Detailed Description
In order to facilitate understanding of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent 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 any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
The terms "first," "second," and the like in the description and claims of the present invention and in the above-described drawings are used for distinguishing between different objects and not for describing a particular order. Furthermore, the terms "include" and "have," 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 in the specification 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 utility model. 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 the person skilled in the art that the described embodiments of the utility model can be combined with other embodiments.
Referring to fig. 1, fig. 1 is a schematic system structure diagram of a new energy vehicle, as shown in fig. 1, the new energy vehicle mainly includes three core portions, that is: battery, motor, automatically controlled. The battery part comprises a high-voltage battery (also called a power battery) which is used for providing power for the new energy automobile. The electric control part mainly comprises a vehicle-mounted charger OBC, a direct current converter (also called a direct current-direct current converter, DCDC for short), a high-voltage direct current power distribution component, a vehicle-mounted heater OBH and a wireless charger WPT. The vehicle-mounted charger is used for converting electric energy input from the outside into high-voltage direct current to charge a high-voltage battery; the direct current converter is used for converting direct current into direct current with different voltages; the high-voltage direct-current power distribution component is connected with the high-voltage battery and is used for reasonably distributing electric energy and the like; the vehicle-mounted heater is used for converting electric energy into heat energy; the wireless charger is used for converting electric energy transmitted from the outside in a wireless mode into high-voltage direct current to charge the high-voltage battery.
Specifically, a charging principle schematic diagram of the wireless charger is shown in fig. 2, external electric energy is transmitted to a wireless energy receiving coil (for short, a receiving coil) of a vehicle-mounted end through a wireless energy transmitting unit (for short, a transmitting unit) of a ground end, a process of energy transmission may be called wireless coupling, the receiving coil outputs received alternating current, and the alternating current is converted into high-voltage direct current after rectification and filtering, and then is input to a high-voltage battery. It can be understood that the receiving coil is a part of a wireless charger in an automobile, and the energy transmission mode between the wireless energy transmitting unit and the wireless energy receiving coil includes electromagnetic induction mode, electromagnetic resonance mode, battery radiation mode, and the like.
Generally, a vehicle-mounted charger, a direct current converter, a vehicle-mounted heater and the like included in an electric control part in a new energy automobile can be integrated to simplify a circuit structure, reduce the number of power electronic elements and save the automobile space, but a wireless charger is independently arranged and still needs to occupy a certain space. Therefore, the utility model provides the high-voltage electric control assembly of the new energy automobile, and the vehicle-mounted charger, the direct-current converter, the vehicle-mounted heater and the wireless charger are integrated, so that the automobile space can be further saved, and the cost and the equipment size can be reduced.
Referring to fig. 3, fig. 3 is a schematic structural diagram of a high-voltage electric control assembly of a new energy vehicle according to the present invention, and as shown in fig. 3, the high-voltage electric control assembly includes an integrated control loop 100 and an integrated conversion loop 200 shared by a vehicle-mounted charger, a dc converter, a vehicle-mounted heater, and a wireless charger; the wireless charger further comprises a receiving coil 300 which is independently arranged;
the integrated converting circuit 200 converts ac power input to the on-board charger into high-voltage dc power or converts ac power output from the receiving coil 300 into high-voltage dc power under the control of the integrated control circuit 100; the integrated converting circuit 200 converts the high voltage dc power inputted to the dc converter into a low voltage dc power under the control of the integrated control circuit 100; the integrated converting circuit 200 converts the electric energy inputted to the vehicle-mounted heater into heat energy under the control of the integrated control circuit 100.
It can be understood that a plurality of components (i.e., the vehicle-mounted charger, the dc converter, the vehicle-mounted heater, and the wireless charger) in the high-voltage electric control assembly control the integrated conversion circuit 200 through the shared integrated control circuit 100 to realize the functions of the corresponding components, for example, the vehicle-mounted charger converts the received ac power into high-voltage dc power, or the wireless charger converts the ac power output by the receiving coil 300 into high-voltage dc power, the dc converter converts the received high-voltage dc power into low-voltage dc power, and the vehicle-mounted heater converts the received electric energy into heat energy. The receiving coil 300 of the wireless charger is independently arranged and is generally located at the chassis position of the new energy automobile. The vehicle-mounted charger and the wireless charger can convert the electric energy input from the outside into high-voltage direct current to charge the high-voltage battery 400, so that only one of the functions of the vehicle-mounted charger and the wireless charger can be realized at the same time. Specifically, the vehicle-mounted charger corresponds to an ac charging mode, the wireless charger corresponds to a wireless charging mode, and the integrated control circuit 100 controls the integrated conversion circuit 200 according to the selection of the user for different charging modes, so that the component (such as the vehicle-mounted charger or the wireless charger) corresponding to the selected charging mode realizes the function. The integrated control circuit may include a Digital Signal Processor (DSP), a Microprocessor (MCU), and other control elements.
In one embodiment, as shown in fig. 4, the integrated control loop 100 includes N control signal output terminals, the integrated converting loop 200 includes a switch module 210, and a plurality of switch devices in the switch module 210 are respectively connected to the N control signal output terminals. Understandably, the N control signal output terminals may output N control signals, where the N control signals are used to control a plurality of switching devices in the switching module 210, so that the switching devices are turned on or off, thereby controlling the integrated conversion circuit 200 by the integrated control circuit 100. That is, the switch module 210 in the integrated conversion circuit 200 is controlled by the integrated control circuit 100, so that the selected components of the vehicle-mounted charger, the dc converter, the vehicle-mounted heater and the wireless charger are selectively controlled, and the selected components start to work to realize the functions of the selected components.
In one embodiment, the new energy vehicle includes a high voltage battery 400, and the integrated inverter circuit 200 includes a first input terminal and a first output terminal, the first input terminal is configured to be connected to an external power grid and receive an AC power from the external power grid (e.g., AC input of fig. 3); the first output terminal is used for connecting with the high voltage battery 400 and outputting high voltage direct current to the high voltage battery 400. As shown in fig. 1, the new energy automobile includes an ac charging interface, and the first input terminal is connected to the ac charging interface, and the ac charging interface may be connected to an external power grid to receive ac power from the external power grid.
In one embodiment, the new energy vehicle further includes a low voltage battery 500, and the integrated converting circuit 200 further includes a second input terminal and a second output terminal, wherein the second input terminal is used for connecting with the high voltage battery 400 and receiving the high voltage direct current of the high voltage battery 400; the second output terminal is used for connecting with the low voltage battery 500 and inputting low voltage dc power to the low voltage battery 500. Optionally, the first output end and the second input end are both connected to the high-voltage battery 400, so the first output end may be set to a bidirectional structure, the first output end is also the second input end, a shared port is formed, the high-voltage battery 400 may receive the high-voltage direct current through the shared port, and may also output the high-voltage direct current through the shared port, thereby further simplifying the structure of the high-voltage electric control assembly, and saving the cost and the space.
In one embodiment, the integrated conversion circuit 200 further includes a third output end, and the third output end is used for outputting heat energy to the inside of the new energy vehicle. As shown in fig. 4, the vehicle heater includes a heating circuit 250, the heating circuit 250 is also integrated into the integrated converting circuit 200, and specifically, the heating circuit 250 is disposed between the switch module 210 and the third output terminal. In this way, after receiving the command for starting the vehicle-mounted heater, the integrated control circuit 100 controls the plurality of switching devices included in the switching module 210 in the integrated conversion circuit 200, so that the heating circuit 250 receives electric energy, converts the received electric energy into heat energy, and outputs the heat energy to the vehicle of the new energy source from the third output terminal.
In one embodiment, the integrated converting circuit 200 further includes a fourth input terminal and a fourth output terminal, the fourth input terminal is used for being connected to the receiving coil 300 and receiving the ac power output by the receiving coil 300; the fourth output terminal is used for connecting with the high voltage battery 400 and outputting high voltage direct current to the high voltage battery 400. Optionally, since the fourth output terminal and the first output terminal are both connected to the high voltage battery 400, the first output terminal may be the fourth output terminal, which may further simplify the structure of the integrated conversion circuit 200.
In one embodiment, as shown in fig. 4, the integrated conversion circuit 200 further includes a Power Factor Correction (PFC) circuit 220, a dc conversion circuit 230, and a filter circuit 240, the first input end is disposed on the PFC circuit 220, the first output end is disposed on the switch module 210, the ac Power of the external Power grid is input from the first input end, and is converted into the high-voltage dc Power through the PFC circuit 220, the dc conversion circuit 230, the filter circuit 240, and the switch module 210 in sequence, and the high-voltage dc Power is output from the first output end to the high-voltage battery 400. Specifically, the pfc circuit 220 is configured to perform pfc on an input ac and output a dc signal after the pfc, so as to convert the ac into a dc. And the dc conversion circuit 230 is used to convert the dc power into dc power. Specifically, the dc conversion circuit 230 may be an LLC circuit, where L of the LLC circuit represents Inductance, and C represents Capacitance, that is, the circuit includes Inductance and Capacitance. Of course, the dc conversion circuit may have other structures, and the present invention is not limited thereto. The filter circuit 240 is configured to filter the direct current output by the direct current conversion circuit 230 to obtain a smooth direct current. In this way, after receiving the command for charging (i.e., selecting the ac charging mode) by the vehicle-mounted charger, the integrated control circuit 100 controls the plurality of switching devices included in the switching module 210 in the integrated conversion circuit 200, so that the vehicle-mounted charger converts the ac power input from the first input terminal into the high-voltage dc power through the power factor correction circuit 220, the dc conversion circuit 230, the filter circuit 240 and the switching module 210, and outputs the high-voltage dc power from the first output terminal to charge the high-voltage battery 400.
In one embodiment, as shown in fig. 5, the dc conversion circuit 230 further includes an inverter unit 231, a resonance unit 232, a transformer 233, and a rectifier unit 234, the fourth input terminal is provided at the resonance unit 232, the fourth output terminal is provided at the switch module 210, the ac power output from the receiving coil 300 is input from the fourth input terminal, passes through the resonance unit 232, the transformer 233, the rectifier unit 234, the filter circuit 240, and the switch module 210 in sequence, and is converted into the high-voltage dc power, and the high-voltage dc power is output from the fourth output terminal to the high-voltage battery 400. The inverting unit 231 may include a plurality of switching tubes, and the inverting unit 231 is configured to convert an input direct current into an alternating current, and for example, the inverting unit 231 may be a full-bridge structure, a phase-shifted full-bridge structure, or a push-pull structure, which is not limited in this application. When the inverter unit 231 has a full-bridge structure, the dc conversion circuit 230 may be an LLC circuit. The resonant unit 232 includes an inductor and a capacitor, the resonant unit 232 is configured to convert an operating frequency of the alternating current, the transformer 233 is configured to transform the alternating current, and the rectifying unit 234 is configured to rectify the alternating current to obtain a direct current. In this way, after receiving the instruction for charging (i.e., selecting the wireless charging mode) by the wireless charger, the integrated control circuit 100 controls the plurality of switching devices included in the switching module 210 in the integrated conversion circuit 200, so that the ac power output by the receiving coil 300 of the wireless charger is input from the fourth input terminal, converted into the high-voltage dc power through the resonant unit 232, the transformer 233, the rectifying unit 234, the filter circuit 240 and the switching module 210, and output from the fourth output terminal to charge the high-voltage battery 400.
In an embodiment, the new energy vehicle further includes a direct current charging interface (as shown in fig. 1), and the integrated inverter circuit 200 further includes a fifth input terminal and a fifth output terminal, where the fifth input terminal is configured to be connected to the direct current charging interface and receive direct current input from the outside (e.g., DC input of fig. 3); the fifth output terminal is used for connecting with the high voltage battery 400 and outputting high voltage dc power to the high voltage battery 400. Specifically, the external input dc power is input from the fifth input terminal, and is charged to the high-voltage battery 400 after passing through the switch module 210, that is, after receiving the instruction of charging by using dc power (i.e., selecting the dc charging mode), the integrated control circuit 100 controls the plurality of switching devices included in the switch module 210 in the integrated conversion circuit 200, so that the external input dc power can charge the high-voltage battery 400 after passing through the fifth input terminal. In addition, since the fifth output terminal and the first output terminal are both connected to the high voltage battery 400, the first output terminal may be the fifth output terminal, so that the structure of the integrated conversion circuit 200 may be further simplified by sharing the port.
It can be understood that the ac charging mode, the wireless charging mode, and the dc charging mode can convert the externally input electric energy into high voltage dc power to charge the high voltage battery 400, so that only one of the three charging modes can be selected at the same time, and correspondingly, the integrated control circuit 100 can only control the plurality of switching devices included in the switching module 210 of the integrated conversion circuit 200, so that any one of the vehicle-mounted charger, the wireless charger, or the dc charging module can normally operate. The vehicle-mounted heater may convert electric energy into heat energy, and the electric energy input to the heating circuit 250 may be high-voltage direct current power from the high-voltage battery 400 or high-voltage direct current power obtained by conversion from the outside. In other words, the vehicle-mounted heater can work in the vehicle in a charging mode (any one of an ac charging mode, a wireless charging mode, and a dc charging mode) to provide heat energy for the vehicle; the electric heating device can also work in an automobile in a driving mode, and the electric energy output by the high-voltage battery is utilized to realize the heating function.
In the embodiment of the utility model, the vehicle-mounted charger, the direct current converter, the vehicle-mounted heater and the wireless charger in the high-voltage electric control assembly of the new energy automobile are integrated, so that the functions of the components are realized through the shared integrated control loop and the shared integrated conversion loop, and power electronic elements can be saved while the functions of each component are not influenced, thereby reducing the cost and the equipment size, saving the automobile space and being convenient for management and after sale.
In a possible embodiment, the utility model also provides another integration scheme, namely that the vehicle-mounted charger, the direct current converter, the wireless charger, the vehicle-mounted heater and the like are integrated in a board integration mode. In the board integration mode, at least one of the components (namely the vehicle-mounted charger, the direct current converter, the vehicle-mounted heater and the wireless charger) can be independent, but partial integration is realized by sharing a power supply, an input port and/or an output port with other components. That is, in this integrated solution, the circuits, elements, etc. of the above-mentioned components are packaged in an integrated module, so as to obtain a high-voltage electronic control assembly device with relatively complete function and certain versatility; in the integrated module, circuits, elements, and the like in a plurality of components form relatively independent units having partial or complete functions in a flexible sharing manner. Compared with the integration scheme provided by the method embodiment, the board integration mode is more independent and flexible, the high-voltage electric control device is a whole from the outside, but the internal circuit has certain independence, the integration scheme realizes partial integration, the integration mode is simpler, and the flexibility of the integration scheme can be ensured while circuit elements are saved. For example, a vehicle-mounted charger and a wireless charger may be integrated, a dc converter and a vehicle-mounted heater may be integrated, and then the high-voltage electric control assembly device may be obtained by performing total integration. The present invention is not limited to this integration method, and other integration methods may be obtained by different combinations, which is not limited in this respect.
The following describes a high voltage electrical control assembly integrated by a board integration method. In this embodiment, the on-board charger, the dc converter, the wireless charger, and the on-board heater perform their functions via a common integrated control loop and integrated conversion loop. The vehicle-mounted charger and the direct current converter do not share the direct current conversion circuit, and specifically, alternating current input by an external power grid is converted into high-voltage direct current through a power factor correction circuit, the direct current conversion circuit, a filter circuit and a switch module in the integrated conversion circuit and then is input into the high-voltage battery; the high-voltage direct current output by the high-voltage battery is converted into low-voltage direct current through the switch module, the filter circuit and the direct current converter independent circuit and then is input to the low-voltage battery. The DC converter independent circuit is used for converting the DC power into DC power of another level. The alternating current output by the receiving coil of the wireless charger can still be converted into high-voltage direct current through a resonance unit, a transformer, a rectifying unit, a filter circuit and a switch module in the direct current conversion circuit and then input into a high-voltage battery, and the vehicle-mounted heater can still convert the input electric energy into heat energy through the switch module and a heating circuit and then output the heat energy into the automobile. In the embodiment, the circuit elements and the space of the automobile are saved by sharing part of the circuit, but the direct current converter is relatively independent, so that certain flexibility can be ensured, and the maintenance is convenient.
In a possible embodiment, the utility model further provides a new energy automobile, which includes a battery assembly, a motor assembly and the high-voltage electric control assembly described in any one of the above possible embodiments, wherein the motor assembly and the battery assembly are both connected with the high-voltage electric control assembly.
For a detailed description of the high voltage electric control assembly, reference is made to the above embodiments, which are not repeated herein.
It is to be understood that the utility model is not limited to the examples described above, but that modifications and variations may be effected thereto by those of ordinary skill in the art in light of the foregoing description, and that all such modifications and variations are intended to be within the scope of the utility model as defined by the appended claims.

Claims (10)

1. A high-voltage electric control assembly of a new energy automobile is characterized by comprising an integrated control loop and an integrated conversion loop which are shared by a vehicle-mounted charger, a direct-current converter, a vehicle-mounted heater and a wireless charger; the wireless charger further comprises an independently arranged receiving coil;
the integrated conversion circuit converts alternating current input into the vehicle-mounted charger into high-voltage direct current or converts alternating current output by the receiving coil into high-voltage direct current under the control of the integrated control circuit; the integrated conversion circuit converts the high-voltage direct current input into the direct current converter into low-voltage direct current under the control of the integrated control circuit; the integrated conversion loop converts the electric energy input into the vehicle-mounted heater into heat energy under the control of the integrated control loop.
2. The assembly of claim 1, wherein the integrated control loop comprises N control signal outputs, and wherein the integrated conversion loop comprises a switch module, and wherein a plurality of switching devices in the switch module are respectively connected to the N control signal outputs.
3. The high-voltage electric control assembly according to claim 2, wherein the new energy vehicle comprises a high-voltage battery, the integrated conversion loop comprises a first input end and a first output end, and the first input end is used for being connected with an external power grid and receiving alternating current of the external power grid; the first output end is used for being connected with the high-voltage battery and outputting high-voltage direct current to the high-voltage battery.
4. The high-voltage electric control assembly according to claim 3, wherein the new energy vehicle further comprises a low-voltage battery, the integrated conversion loop further comprises a second input terminal and a second output terminal, the second input terminal is used for being connected with the high-voltage battery and receiving the high-voltage direct current of the high-voltage battery; and the second output end is used for being connected with the low-voltage battery and inputting low-voltage direct current to the low-voltage battery.
5. The high voltage electrical control assembly according to claim 4, wherein the integrated transfer loop further comprises a third output terminal for outputting heat energy to the interior of the new energy vehicle.
6. The assembly of claim 5, wherein the integrated transfer circuit further comprises a fourth input and a fourth output, the fourth input being configured to couple to the receiver coil and receive the ac power output from the receiver coil; and the fourth output end is used for being connected with the high-voltage battery and outputting high-voltage direct current to the high-voltage battery.
7. The assembly according to claim 6, wherein the integrated converting circuit further comprises a power factor correction circuit, a dc converting circuit and a filter circuit, the first input terminal is disposed on the power factor correction circuit, the first output terminal is disposed on the switch module, the ac power of the external power grid is input from the first input terminal, and is converted into the high voltage dc power through the power factor correction circuit, the dc converting circuit, the filter circuit and the switch module in sequence, and the high voltage dc power is output from the first output terminal to the high voltage battery.
8. The assembly according to claim 7, wherein the dc converter circuit further includes an inverter unit, a resonant unit, a transformer, and a rectifier unit, the fourth input terminal is disposed on the resonant unit, the fourth output terminal is disposed on the switch module, the ac power output from the receiving coil is input from the fourth input terminal, sequentially passes through the resonant unit, the transformer, the rectifier unit, the filter circuit, and the switch module, and is converted into the high-voltage dc power, and the high-voltage dc power is output from the fourth output terminal to the high-voltage battery.
9. The high-voltage electric control assembly according to claim 3, wherein the new energy automobile further comprises a direct-current charging interface, the integrated conversion loop further comprises a fifth input end and a fifth output end, and the fifth input end is used for being connected with the direct-current charging interface and receiving direct current input from the outside; and the fifth output end is used for being connected with the high-voltage battery and outputting high-voltage direct current to the high-voltage battery.
10. A new energy automobile, characterized by comprising a battery assembly, a motor assembly and a high-voltage electric control assembly according to any one of claims 1 to 9, wherein the motor assembly and the battery assembly are connected with the high-voltage electric control assembly.
CN202122006429.XU 2021-08-24 2021-08-24 New energy automobile and high-voltage electric control assembly thereof Active CN215705726U (en)

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CN202122006429.XU CN215705726U (en) 2021-08-24 2021-08-24 New energy automobile and high-voltage electric control assembly thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
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