CN220209977U - Three-in-one charging power supply for customizing caravan - Google Patents

Three-in-one charging power supply for customizing caravan Download PDF

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Publication number
CN220209977U
CN220209977U CN202320776032.5U CN202320776032U CN220209977U CN 220209977 U CN220209977 U CN 220209977U CN 202320776032 U CN202320776032 U CN 202320776032U CN 220209977 U CN220209977 U CN 220209977U
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China
Prior art keywords
relay
module
power supply
charging
switch
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Active
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CN202320776032.5U
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Chinese (zh)
Inventor
谭光慧
张国民
豆丽娟
吕宏图
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Jiangsu Fuyuan Technology Co ltd
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Jiangsu Fuyuan Technology Co ltd
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/70—Energy storage systems for electromobility, e.g. batteries
    • 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

Abstract

The utility model discloses a three-in-one charging power supply for customizing a motor home, which belongs to the technical field of motor home power supplies and comprises an interface unit, wherein the interface unit is connected with a power conversion unit, a control unit and an energy storage battery pack, and comprises a communication module, an alternating current relay module, a direct current relay module and an auxiliary power supply module; the power conversion unit comprises a power conversion control module, an AC/DC conversion module, a DC/DC conversion module, a fan module and an output reverse connection prevention module. The three-in-one charging power supply for the motor home customization is simple in internal structure and modularized, brings convenience to capacity expansion of products, and can change the capacity of equipment by changing the number of power conversion units; the auxiliary power module is arranged in the control system, so that the control power can be automatically formed; the communication with the upper computer man-machine interface is realized through CAN communication, the instruction of the upper computer is received in real time, and the working state, working parameters and fault information of the upper computer are uploaded.

Description

Three-in-one charging power supply for customizing caravan
Technical Field
The utility model relates to the technical field of electric power supplies of motor home, in particular to a customized three-in-one charging power supply of motor home.
Background
Along with the improvement of the living standard of people, the demands on living electric appliances are also increasing, so that the demands on the capacity of the energy storage lithium battery pack by the living energy system of the rear car of the motor home are also increasing. The voltage level of the energy storage lithium battery pack is increased from 12V to 48V, so that the electric power supply of the caravan is also improved. The conventional car as a house charging power supply generally charges the energy storage lithium battery pack by 220V alternating current of a civil socket, and the charging power is limited by the capacity of the socket to be within 2000W, however, the charging power of the grade is difficult to meet the charging requirement of the 48V energy storage lithium battery pack. Meanwhile, with the development of new energy automobiles, the popularization of alternating-current charging piles and direct-current charging piles, and the electric power supply for car as a house needs to meet the requirement of being capable of charging an energy storage lithium battery pack through the alternating-current charging piles and the direct-current charging piles.
Disclosure of Invention
In order to solve the problems, the utility model provides the three-in-one charging power supply for the motor home customization, which can be connected into a household/industrial socket, an alternating-current charging pile and a direct-current charging pile to charge an energy storage lithium battery pack, and is convenient and quick.
In order to achieve the above purpose, the technical scheme of the utility model is as follows:
the utility model provides a three unification charging source of car as a house customization, includes interface unit, interface unit includes direct current relay module, alternating current relay module and auxiliary power module;
the direct current relay module comprises a first relay and a second relay, wherein the first end of a switch of the first relay is connected with the positive electrode of a direct current input power supply, and the second end of the switch of the first relay is connected with the first output end; the first end of the switch of the second relay is connected with the negative electrode of the direct current input power supply, and the second end of the switch of the second relay is connected with the second output end;
the alternating current relay module comprises a third relay and a fourth relay, wherein the first end of a switch of the third relay is connected with the second end of an alternating current power supply, and the second end of the switch of the third relay is connected with a third output end; the first end of the switch of the fourth relay is connected with the first end of the alternating current power supply, and the second end of the switch of the fourth relay is connected with the fourth output end;
the auxiliary power supply module comprises an AC/DC converter, and the input end of the AC/DC converter is connected with the first end of the AC power supply and the second end of the AC power supply; the output end of the AC/DC converter provides an auxiliary power supply.
Above-mentioned three unification charging source of car as a house customization still includes fifth relay, the switch first end of fifth relay is connected direct current input power supply positive pole through the resistance, the first output is connected to the switch second end of fifth relay.
Above-mentioned three unification charging source of motor home customization still includes a plurality of first diodes, first diode is anti-parallel respectively be in first relay coil second relay coil third relay coil fourth relay coil fifth relay coil's both ends.
The three-in-one charging power supply for the motor home customization further comprises a power conversion unit, and the power conversion unit is connected with the interface unit.
The power conversion unit comprises a power conversion control module, an AC/DC conversion module, a DC/DC conversion module, a fan module and an output reverse connection prevention module.
The three-in-one charging power supply for the motor home customization further comprises a control unit, and an auxiliary power supply of the control unit is connected with the output end of the AC/DC converter.
The interface unit also comprises a communication module, wherein the communication module is connected with the control unit, the power conversion control module and the energy storage battery pack.
The output reverse connection preventing module is connected with the energy storage battery pack through the interface unit.
The first output end and the second output end are connected with the DC/DC conversion module.
The third output end and the fourth output end are connected with the AC/DC conversion module.
The three-in-one charging power supply for the motor home customization has the advantages that the internal structure is simple, the modular design is realized, the capacity expansion of products is facilitated, and the capacity of equipment can be changed by changing the number of the power conversion units; the auxiliary power module is arranged in the control system, so that the control power can be automatically formed; the communication with the upper computer man-machine interface is realized through CAN communication, the instruction of the upper computer is received in real time, and the working state, working parameters and fault information of the upper computer are uploaded, so that the operation state of the equipment is known at a glance, and a user CAN grasp the operation state of the equipment in real time.
In order to make the above features and advantages of the present utility model more comprehensible, embodiments accompanied with figures are described in detail below.
Drawings
Fig. 1 is a block diagram of a three-in-one charging power supply for car as a house customization.
Fig. 2 is a schematic circuit diagram of an ac relay module, a dc relay module, and an auxiliary power module according to an embodiment of the present utility model.
In the drawings, like reference numerals refer to like elements.
Detailed Description
In order to make the purpose and technical solutions of the embodiments of the present utility model more clear, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. It will be apparent that the described embodiments are some, but not all, embodiments of the utility model. All other embodiments, which can be made by a person skilled in the art without creative efforts, based on the described embodiments of the present utility model fall within the protection scope of the present utility model.
Fig. 1 is a block diagram of a three-in-one charging power supply customized by a motor home, and as shown in fig. 1, an interface unit 1 is connected with a power conversion unit 2, a control unit 3 and an energy storage battery pack 4.
The interface unit 1 comprises a communication module 11, an alternating current relay module 12, a direct current relay module 13 and an auxiliary power module 14; the power conversion unit 2 includes a power conversion control module 21, an AC/DC conversion module 22, a DC/DC conversion module 23, a fan module 24, and an output reverse connection prevention module 25.
The communication module 11 is connected with the energy storage battery pack 4, the control unit 3 and the power conversion control module 21; the alternating current relay module 12 is connected with an external alternating current input 6, the control unit 3 and the AC/DC conversion module 22; the direct current relay module 13 is connected with an external direct current input 5, the control unit 3 and the DC/DC conversion module 23; the auxiliary power supply module 14 is connected with an external alternating current input 6, an external direct current input 5 and the control unit 3; the output reverse connection preventing module 25 is connected with the energy storage battery pack 4 through the port unit 1.
Further, the external ac input 6 comprises an ac charging peg or a household or industrial outlet.
Further, the external dc input 5 comprises a dc charging stake.
The power conversion control module 21 is also connected with a fan module 24, an AC/DC conversion module 22 and a DC/DC conversion module 23; the output reverse connection preventing module 25 is connected with the AC/DC conversion module 22 and the DC/DC conversion module 23.
The function of the interface unit 1 provides auxiliary power, transfer stations of peripheral interfaces and internal interfaces, communication summarization and distribution; in addition, the interface unit 1 converts the 220V ac power inputted from the external ac or the 12V dc power inputted from the external dc into the working voltage required inside the circuit board through the auxiliary power module 14.
The power conversion unit 2 has a function of converting an external dc or ac input into a battery voltage required for the energy storage battery pack 4, charging the energy storage battery pack 4, and simultaneously has a function of preventing reverse connection of the output positive and negative electrodes.
In a specific embodiment, the circuits of the ac relay module 12, the dc relay module 13, and the auxiliary power module 14 in the interface unit 1 are shown in fig. 2.
The direct current relay module 13 comprises a relay K1, a relay K2 and a relay K3, wherein a first end of a switch of the relay K2 is connected with a direct current input power supply anode DC1, and a second end of a switch of the relay K2 is connected with an output end OUT1; a first end of a switch of the relay K3 is connected with a negative electrode DC2 of the direct current input power supply, and a second end of the switch of the relay K3 is connected with an output end OUT2; the first end of the switch of the relay K1 is connected with the positive electrode DC1 of the direct current input power supply through the current limiting resistor R1, the second end of the switch of the relay K1 is connected with the output end OUT1, and the capacitor C1 is connected between the first end and the second end of the switch of the relay K1 in parallel. The output terminal OUT1 is connected to the DC/DC conversion module 23 with the output terminal OUT 2. The anti-parallel diode D1 at two ends of the coil of the relay K1, namely the cathode of the diode D1 is connected with the first end Vcc of the coil of the relay K1, the anode of the diode D1 is connected with the second end P1 of the coil of the relay K1, the anti-parallel diode D2 at two ends of the coil of the relay K2, namely the cathode of the diode D2 is connected with the first end Vcc of the coil of the relay K2, the anode of the diode D2 is connected with the second end P2 of the coil of the relay K2, the anti-parallel diode D3 at two ends of the coil of the relay K3, namely the cathode of the diode D3 is connected with the first end Vcc of the coil of the relay K3, and the anode of the diode D3 is connected with the second end P3 of the coil of the relay K3. The relay K1 is a soft start relay, and the power conversion unit 2 establishes voltage through the relay K1 after an external direct current power supply is connected.
The alternating current relay module 12 comprises a relay K4 and a relay K5, wherein a first end of a switch of the relay K4 is connected with an alternating current power supply second end AC2, and a second end of the switch of the relay K4 is connected with an output end OUT3; a first end of a switch of the relay K5 is connected with the first end AC1 of the alternating current power supply, and a second end of the switch of the relay K5 is connected with the output end OUT4; the output terminal OUT3 is connected to the AC/DC conversion module 22 with the output terminal OUT 4. The two ends of the coil of the relay K4 are connected with the diode D4 in anti-parallel, namely the cathode of the diode D4 is connected with the first end Vcc of the coil of the relay K4, the anode of the diode D4 is connected with the second end P4 of the coil of the relay K4, the two ends of the coil of the relay K5 are connected with the diode D5 in anti-parallel, namely the cathode of the diode D5 is connected with the first end Vcc of the coil of the relay K5, and the anode of the diode D5 is connected with the second end P5 of the coil of the relay K5.
The auxiliary power module 14 includes an AC/DC converter 141, a diode D6, and a diode D7, wherein an input end of the AC/DC converter 141 is connected to the first AC1 and the second AC2 of the AC power, an output positive end of the AC/DC converter 141 is connected to an anode of the diode D7, a cathode of the diode D7 is connected to the auxiliary power Vcc, and an output negative end of the AC/DC converter 141 is grounded. An anode of the diode D6 is connected to an external direct current auxiliary signal input DC3, a cathode of the diode D6 is connected to an auxiliary power supply Vcc, and the auxiliary power supply Vcc is an auxiliary power supply of the control unit 3. The cathode of the diode D7 is grounded via a capacitor C2. The function of the diode D6 and the diode D7 is to prevent the voltage from being pumped down, and to provide safety protection, for example, to ensure that the auxiliary power supply is not connected to the dc auxiliary power supply side when the ac power is supplied to the auxiliary power supply.
Further, the auxiliary power supply Vcc is connected to all ports of the interface unit 1 and the control unit 3 where the auxiliary power supply Vcc is required.
The diodes D1, D2, D3, D4, and D5 connected in anti-parallel to the two ends of the relay coil are freewheeling diodes, which function to suppress the absorption of the reverse electromotive force.
The direct current input power supply anode DC1, the direct current input power supply cathode DC2 and the external direct current auxiliary signal input DC3 are ports on the direct current charging gun.
The first AC power end AC1 and the second AC power end AC2 are ports on an AC charging gun or a household socket/industrial socket.
In one embodiment, the communication module 11 is a CAN communication module.
In a specific embodiment, the three-in-one charging power source customized by the caravan has a rated capacity of 6000W and an output voltage range of 0-68V, and CAN be output according to the charging voltage allowed by the energy storage battery pack 4 through CAN communication. Wherein the output rated voltage is 48V.
The other modules in fig. 1 and the control unit 3 may be implemented by known circuits with corresponding functions, which are not described herein.
The working principle of the three-in-one charging power supply for car as a house customization of the utility model is continuously described with reference to fig. 1 and 2.
When the external DC input or AC input is connected, the external DC input or AC input is converted into the working voltage required by the circuit board through the auxiliary power module 14. The control unit 3 judges the current required charging working mode according to the collected input voltage, current and auxiliary signal types, so as to control the corresponding direct current path relays K1 to K3 or alternating current path relays K4 or K5 on the interface unit 1 to be attracted, and realize the switching of the working modes. Meanwhile, the requirements of the charging voltage and the charging current required by the energy storage battery pack 4 acquired through CAN communication are distributed to the power conversion unit 2 through CAN communication, the power conversion unit 2 outputs corresponding voltage and current to the energy storage battery pack 4, the temperature of the energy storage battery pack is detected, the purpose of heat dissipation is achieved by controlling the rotating speed of the fan module 24, and safe and stable operation is ensured. When the electric quantity of the energy storage battery pack 4 reaches 100%, the control unit 3 cuts off a corresponding direct current path relay or alternating current path relay on the interface unit 1, and the caravan customized three-in-one charging power supply stops working. In the whole charging process, the control unit 3 intelligently follows the current electric quantity and state of the energy storage battery pack 4 with the charging voltage and the charging current, so as to achieve the optimal charging effect. Meanwhile, the control unit 3 realizes the intercommunication with the human-computer interface of the upper computer through CAN communication, receives the instruction of the upper computer in real time, uploads the working state, working parameters and fault information of the upper computer, and ensures that a user CAN grasp the running state of the equipment in real time at a glance and ensure the safe running of the system.
More specifically, the working principle and working process under the direct current charging pile mode are as follows:
the charging gun of the direct-current charging pile is connected to the direct-current input socket of the three-in-one customized charging power supply of the motor home, and after connection confirmation is completed, the 12V direct-current voltage provided by the direct-current charging pile is provided by the diode D6 in the auxiliary power supply module 14, so that the control unit 3 is started.
The control unit 3 judges that the current is in the working mode of the direct current charging pile according to the collected input voltage, current and auxiliary signal types.
The control unit 3 is in butt joint with the energy storage battery pack 4 through CAN communication to obtain the required charging voltage and charging current, and transmits data to the direct current charging pile through CAN communication, and the direct current charging pile outputs corresponding voltage and current according to requirements.
The control unit 3 sends out a signal to control the corresponding direct current path relays K1 to K3 on the interface unit 1 to be attracted, and the voltage of the direct current charging pile is connected to the power conversion unit 2; at the same time, the control unit 3 transmits the charging voltage and the charging current required by the energy storage battery pack 4 to the power conversion unit 2 through CAN communication.
When the charging power required by the energy storage battery pack 4 is larger than 6000W of rated power of the three-in-one electric power source customized by the motor home in the direct-current charging pile mode, the three-in-one electric power source customized by the motor home is used for transmitting electric energy of the direct-current charging pile to the energy storage battery pack 4 in a constant-voltage constant-current mode according to the charging voltage required by the energy storage battery pack 4; otherwise, the three-in-one charging power supply customized by the motor home transmits the electric energy of the direct-current charging pile to the energy storage battery pack 4 in a constant-voltage and constant-current mode according to the charging voltage and the charging current required by the energy storage battery pack 4.
In the whole charging process, the control unit 3 intelligently follows the current electric quantity and state of the energy storage battery pack 4 with the charging voltage and the charging current, so as to achieve the optimal charging effect. Meanwhile, the control unit 3 realizes the intercommunication with the human-computer interface of the upper computer through CAN communication, receives the instruction of the upper computer in real time, uploads the working state, working parameters and fault information of the control unit, so that a user CAN grasp the running state of the equipment in real time at a glance, and the safe running of the system is ensured.
When the electric quantity of the energy storage battery pack 4 reaches 100%, the control unit 3 informs the power conversion unit 2 and the direct current charging pile in a CAN communication mode, meanwhile, the corresponding direct current path relays K2 to K3 on the interface unit 1 are disconnected, the three-in-one charging power supply and the direct current charging pile for the motor home customization stop working, and the direct current charging gun is pulled out to finish charging.
More specifically, the working principle and working procedure in the ac charging pile mode are as follows:
when the charging gun of the alternating-current charging pile is connected with the alternating-current input socket of the three-in-one customized charging power supply of the motor home, after connection confirmation is completed, the 220V alternating-current voltage provided by the charging pile by the auxiliary power supply of the control unit 3 is subjected to voltage reduction conversion by the auxiliary power supply module 14, so that the control unit 3 is started.
The control unit 3 judges that the alternating current charging pile is in the working mode according to the collected input voltage, current and auxiliary signal types.
The control unit 3 sends out a signal to control the corresponding alternating current path relays K4 to K5 on the interface unit 1 to be attracted, and the voltage of the alternating current charging pile is connected to the power conversion unit 2; at the same time, the control unit 3 transmits the charging voltage and the charging current required by the energy storage battery pack 4 to the power conversion unit 2 through CAN communication.
When the charging power required by the energy storage battery pack 4 is larger than 6000W of rated power of the three-in-one electric power source customized by the motor home in an alternating current charging pile mode, the three-in-one electric power source customized by the motor home transmits electric energy of the alternating current charging pile to the energy storage battery pack 4 in a constant voltage and constant current mode according to the charging voltage required by the energy storage battery pack 4; otherwise, the three-in-one charging power supply customized by the motor home transmits the electric energy of the alternating-current charging pile to the energy storage battery pack 4 in a constant-voltage and constant-current mode according to the charging voltage and the charging current required by the energy storage battery pack 4.
In the whole charging process, the control unit 3 intelligently follows the current electric quantity and state of the energy storage battery pack 4 with the charging voltage and the charging current, so as to achieve the optimal charging effect. Meanwhile, the control unit 3 realizes the intercommunication with the human-computer interface of the upper computer through CAN communication, receives the instruction of the upper computer in real time, uploads the working state, working parameters and fault information of the control unit, so that a user CAN grasp the running state of the equipment in real time at a glance, and the safe running of the system is ensured.
When the electric quantity of the energy storage battery pack 4 reaches 100%, the control panel unit 3 informs the power conversion control module 2 and the alternating current charging pile in a CAN communication mode, meanwhile, the corresponding alternating current path relays K4 to K5 on the interface unit 1 are disconnected, the three-in-one charging power supply for the motor home customization stops working, and the alternating current charging gun is pulled out to finish charging.
More specifically, the working principle and working procedure in the domestic/industrial outlet mode are as follows:
when the household socket/industrial socket is powered on to be connected with an alternating current input socket of a three-in-one customized charging power supply of the motor home, the auxiliary power supply of the control unit 3 is formed by voltage reduction conversion of a 220V alternating current power supply provided by a charging pile through the auxiliary power supply module 14, so that the control unit 3 is started.
The control unit 3 determines that it is now in the home/industry socket mode of operation based on the collected input voltage, current and auxiliary signal type.
The control unit 3 sends out a signal to control the corresponding alternating current path relays K4 to K5 on the interface unit 1 to be attracted, and the voltage of the household/industrial socket is connected into the power conversion unit 2; at the same time, the control unit 3 transmits the charging voltage and the charging current required by the energy storage battery pack 4 to the power conversion unit 2 through CAN communication.
When the charging power required by the energy storage battery pack 4 is larger than the rated power 2000W of the three-in-one charging power supply customized by the motor home in the household/industrial socket working mode, the three-in-one charging power supply customized by the motor home is powered by 2000W, and the electric energy of the household/industrial socket is transmitted to the energy storage battery pack 4 in a constant voltage and constant current mode according to the charging voltage required by the energy storage battery pack 4; otherwise, the electric energy of the household/industrial socket is transmitted to the energy storage battery pack 4 in a constant voltage and constant current mode by the three-in-one charging power supply customized by the motor home according to the charging voltage and the charging current required by the energy storage battery pack 4.
In the whole charging process, the control unit 3 intelligently follows the current electric quantity and state of the energy storage battery pack 4 with the charging voltage and the charging current, so as to achieve the optimal charging effect. Meanwhile, the control unit 3 realizes the intercommunication with the human-computer interface of the upper computer through CAN communication, receives the instruction of the upper computer in real time, uploads the working state, working parameters and fault information of the control unit, so that a user CAN grasp the running state of the equipment in real time at a glance, and the safe running of the system is ensured.
When the electric quantity of the energy storage battery pack 4 reaches 100%, the control unit 3 informs the power conversion unit 2 in a CAN communication mode, meanwhile, corresponding alternating current path relays K4 to K5 on the interface unit 1 are disconnected, the three-in-one charging power supply for the motor home customization stops working, and the household/industrial socket is pulled out to finish charging.
Although the present utility model has been described with reference to the above embodiments, it should be understood that the utility model is not limited thereto, but rather is capable of modification and variation without departing from the spirit and scope of the present utility model.

Claims (10)

1. The utility model provides a customized trinity charging source of car as a house, characterized by comprising an interface unit, the interface unit includes direct current relay module, alternating current relay module and auxiliary power module;
the direct current relay module comprises a first relay and a second relay, wherein the first end of a switch of the first relay is connected with the positive electrode of a direct current input power supply, and the second end of the switch of the first relay is connected with the first output end; the first end of the switch of the second relay is connected with the negative electrode of the direct current input power supply, and the second end of the switch of the second relay is connected with the second output end;
the alternating current relay module comprises a third relay and a fourth relay, wherein the first end of a switch of the third relay is connected with the second end of an alternating current power supply, and the second end of the switch of the third relay is connected with a third output end; the first end of the switch of the fourth relay is connected with the first end of the alternating current power supply, and the second end of the switch of the fourth relay is connected with the fourth output end;
the auxiliary power supply module comprises an AC/DC converter, and the input end of the AC/DC converter is connected with the first end of the AC power supply and the second end of the AC power supply; the output end of the AC/DC converter provides an auxiliary power supply.
2. The three-in-one charging power supply for motor home customization as claimed in claim 1, further comprising a fifth relay, wherein a first end of a switch of the fifth relay is connected with a positive electrode of the direct current input power supply through a resistor, and a second end of the switch of the fifth relay is connected with the first output end.
3. The three-in-one charging power supply for car as defined in claim 2, further comprising a plurality of first diodes, wherein the first diodes are respectively connected in anti-parallel to two ends of the first relay coil, the second relay coil, the third relay coil, the fourth relay coil and the fifth relay coil.
4. A three-in-one charging power supply for motor home customization as claimed in claim 3, further comprising a power conversion unit, wherein the power conversion unit is connected with the interface unit.
5. The three-in-one charging power supply for motor home customization as claimed in claim 4, wherein the power conversion unit comprises a power conversion control module, an AC/DC conversion module, a DC/DC conversion module, a fan module and an output reverse connection prevention module.
6. The three-in-one charging power supply for car as defined in claim 5, further comprising a control unit, wherein an auxiliary power supply of the control unit is connected with the output end of the AC/DC converter.
7. The three-in-one electric power supply for customizing a motor home as claimed in claim 6, wherein the interface unit further comprises a communication module, and the communication module is connected with the control unit, the power conversion control module and the energy storage battery pack.
8. The three-in-one power supply for customizing a motor home of claim 7, wherein the output anti-reverse connection module is connected with the energy storage battery pack through the interface unit.
9. The three-in-one charging power supply for car as defined in claim 8, wherein the first output end and the second output end are connected with the DC/DC conversion module.
10. The three-in-one electric power supply for car as set forth in claim 9, wherein the third output terminal and the fourth output terminal are connected to the AC/DC conversion module.
CN202320776032.5U 2023-04-10 2023-04-10 Three-in-one charging power supply for customizing caravan Active CN220209977U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202320776032.5U CN220209977U (en) 2023-04-10 2023-04-10 Three-in-one charging power supply for customizing caravan

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202320776032.5U CN220209977U (en) 2023-04-10 2023-04-10 Three-in-one charging power supply for customizing caravan

Publications (1)

Publication Number Publication Date
CN220209977U true CN220209977U (en) 2023-12-19

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Application Number Title Priority Date Filing Date
CN202320776032.5U Active CN220209977U (en) 2023-04-10 2023-04-10 Three-in-one charging power supply for customizing caravan

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