CN216672658U - Intelligent energy distribution device - Google Patents

Intelligent energy distribution device Download PDF

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Publication number
CN216672658U
CN216672658U CN202123436895.8U CN202123436895U CN216672658U CN 216672658 U CN216672658 U CN 216672658U CN 202123436895 U CN202123436895 U CN 202123436895U CN 216672658 U CN216672658 U CN 216672658U
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China
Prior art keywords
relay
output end
conversion module
power supply
battery
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CN202123436895.8U
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Chinese (zh)
Inventor
裴家平
甘金拓
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Suzhou Guding Energy Technology Co ltd
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Suzhou Guding Energy 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/72—Electric energy management in electromobility
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/10—Technologies relating to charging of electric vehicles
    • Y02T90/12—Electric charging stations
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/10—Technologies relating to charging of electric vehicles
    • Y02T90/16—Information or communication technologies improving the operation of electric vehicles

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  • Charge And Discharge Circuits For Batteries Or The Like (AREA)

Abstract

The utility model discloses an energy intelligent distribution device, which comprises an auxiliary battery, a main battery, a communication detection module, an AC/DC conversion module, a first relay, a second relay, a first power supply source and a second power supply source, wherein the input end of the AC/DC conversion module is connected with the first power supply source, the anode of the output end of the AC/DC conversion module is connected with the anode of the auxiliary battery, the anode of the output end of the second power supply source, the input end of the first relay and the input end of the second relay, the output end of the first relay and the output end of the second relay are connected with the anode of the main battery, the cathode of the output end of the AC/DC conversion module is connected with the cathode of the auxiliary battery, the cathode of the main battery and the cathode of the output end of the second power supply source, and secondly, the second power supply source is used for charging the auxiliary battery in a maximized priority mode, and the first power supply source is used for charging the auxiliary battery and the main battery.

Description

Intelligent energy distribution device
Technical Field
The utility model relates to the technical field of vehicle battery charging, in particular to an intelligent energy distribution device.
Background
In the application of the motor home, two batteries are contained, namely a main battery (mainly used for starting the vehicle) and an auxiliary battery (mainly used for supplying power to life electric appliances). The main power supplies for the main battery and the auxiliary battery mainly comprise three power supplies, namely a photovoltaic power supply, a commercial power supply and a generator. In the existing application, a charging power supply mode is simply selected according to the judgment of the battery voltage, and the charging power supply mode is reasonably selected under the conditions of other faults and the like of the auxiliary battery, so that the energy is intelligently distributed.
SUMMERY OF THE UTILITY MODEL
In order to overcome the above disadvantages, the present invention aims to provide an intelligent energy distribution device, which has a simple structure, and is capable of reasonably matching an auxiliary generator with a main generator for use, and then optimally and preferentially using a second power supply source to charge an auxiliary battery, and using a first power supply source to charge the auxiliary battery and the main battery; and the system can also communicate with the main battery and the auxiliary battery to monitor the state of the main battery and the auxiliary battery at any time.
In order to achieve the above purposes, the utility model adopts the technical scheme that: an energy intelligent distribution device comprises an auxiliary battery and a main battery, wherein the auxiliary battery is connected with an auxiliary generator, the main battery is connected with the main generator, the energy intelligent distribution device also comprises a power distribution assembly, a first power supply source and a second power supply source, the power distribution assembly comprises a communication detection module, an AC/DC conversion module, a first relay, a second relay, the auxiliary battery, the second power supply source, the AC/DC conversion module, the first relay and the second relay are all connected with the communication detection module through communication cables, the input end of the AC/DC conversion module is connected with the first power supply source, the anode of the output end of the AC/DC conversion module is connected with the anode of the auxiliary battery, the anode of the output end of the second power supply source, the input end of the first relay and the input end of the second relay, the output end of the first relay and the output end of the second relay are both connected with the anode of the main battery, and the negative electrode of the output end of the AC/DC conversion module is connected with the negative electrodes of the auxiliary battery, the main battery and the second power supply.
The intelligent energy distribution device has the advantages that a charging power supply mode is reasonably selected according to the use scenes of the main battery and the auxiliary battery on the motor home, energy is intelligently distributed, the auxiliary generator and the main generator can be reasonably matched for use, then the second power supply source is preferentially used for charging the auxiliary battery to the maximum extent, and the first power supply source is used for charging the auxiliary battery and the main battery; and the system can also communicate with the main battery and the auxiliary battery to monitor the state of the main battery and the auxiliary battery at any time. The main battery and the auxiliary battery are charged according to the state of the battery, so that the service life is prolonged; the scene of the double generators is adapted, the load rejection phenomenon of the auxiliary motor is avoided, and the vehicle-mounted energy distribution is more intelligent.
As a further improvement of the present invention, the first power supply is an external utility power, and the external utility power is connected to an input terminal of the AC/DC conversion module. External commercial power charges the auxiliary battery and the main battery through the AC/DC conversion module
The further improvement of the utility model is that the second power supply source is a photovoltaic module and a photovoltaic control module, the output end of the photovoltaic module is connected with the input end of the photovoltaic control module, and the positive and negative poles of the output end of the photovoltaic control module are correspondingly connected with the positive and negative poles of the output end of the AC/DC conversion module. The photovoltaic module and the photovoltaic control module are implemented to charge the auxiliary battery.
As a further development of the utility model, the photovoltaic control module is a photovoltaic controller.
The further improvement of the utility model is that the AC/DC conversion module further comprises an external direct current load, and the positive and negative poles of the output end of the AC/DC conversion module can be correspondingly connected with the positive and negative poles of the external direct current load. The first power supply source can also charge other external direct current loads through the AC/DC conversion module.
As a further improvement of the utility model, the AC/DC conversion module is an AC/DC converter.
Drawings
FIG. 1 is a block diagram of the present embodiment;
FIG. 2 is a circuit diagram of the AC/DC converting module of the present embodiment;
FIG. 3 is a circuit diagram of a communication detection module according to the present embodiment;
fig. 4 is a circuit diagram of the photovoltaic control module according to the present embodiment.
In the figure:
1. an auxiliary battery; 2. an auxiliary generator; 3. a main battery; 4. a main generator; 5. a communication detection module; 6. an AC/DC conversion module; 7. a first relay; 8. a second relay; 9. an external utility power; 10. a photovoltaic module; 11. a photovoltaic control module; 12. an external DC load.
Detailed Description
The following detailed description of the preferred embodiments of the present invention, taken in conjunction with the accompanying drawings, will make the advantages and features of the utility model easier to understand by those skilled in the art, and thus will clearly and clearly define the scope of the utility model.
Referring to fig. 1-4, the intelligent energy distribution device of this embodiment includes an auxiliary battery 1 and a main battery 3, the auxiliary battery 1 is used to connect with an auxiliary generator 2, the main battery 3 is used to connect with a main generator 4, and further includes a power distribution assembly, a first power supply source and a second power supply source, the power distribution assembly includes a communication detection module 5, an AC/DC conversion module 6, a first relay 7 and a second relay 8, the auxiliary battery 1, the second power supply source, the AC/DC conversion module 6, the first relay 7 and the second relay 8 are all connected with the communication detection module 5 through a communication cable, an input terminal of the AC/DC conversion module 6 is connected with the first power supply source, an output terminal positive terminal of the AC/DC conversion module 6 is connected with a positive terminal of the auxiliary battery 1, an output terminal positive terminal of the second power supply source, an input terminal of the first relay 7 and an input terminal of the second relay 8, the output end of the first relay 7 and the output end of the second relay 8 are both connected with the positive pole of the main battery 3, and the negative pole of the output end of the AC/DC conversion module 6 is connected with the negative pole of the auxiliary battery 1, the negative pole of the main battery 3 and the negative pole of the output end of the second power supply source.
The first power supply is an external commercial power 9, and the external commercial power 9 is connected with the input end of the AC/DC conversion module 6. The auxiliary battery 1 and the main battery 3 are charged by an external utility power 9 through the AC/DC conversion module 6. The second power supply source comprises a photovoltaic assembly 10 and a photovoltaic control module 11, the output end of the photovoltaic assembly 10 is connected with the input end of the photovoltaic control module 11, and the positive and negative electrodes of the output end of the photovoltaic control module 11 are correspondingly connected with the positive and negative electrodes of the output end of the AC/DC conversion module 6. The photovoltaic module 10 and the photovoltaic control module 11 enable charging of the auxiliary battery 1.
The photovoltaic control module 11 of the present embodiment is a photovoltaic controller.
The AC/DC conversion module 6 of the present embodiment is an AC/DC converter.
The present embodiment further includes an external direct current load 12, and the positive and negative terminals of the output end of the AC/DC conversion module 6 can also be correspondingly connected to the positive and negative terminals of the external direct current load 12. The first power supply source may also charge an external direct current load 12 through the AC/DC conversion module 6.
In the implementation process of this embodiment, the utility power is correspondingly connected to the input terminal of the AC/DC conversion module 6, and the positive and negative terminals of the output terminal of the AC/DC conversion module 6 are correspondingly connected to the positive and negative terminals of the direct current load and the positive and negative terminals of the output terminal of the photovoltaic control module 11.
The photovoltaic module 10 receives solar illumination, converts light energy into electric energy and transmits the electric energy to the photovoltaic control module 11. The positive pole of the output end of the AC/DC conversion module 6 is connected with the input end of a first relay 7, and the output end of the first relay 7 is connected with the positive pole of the main battery 3; the positive pole of the output end of the AC/DC conversion module 6 is also connected with the input end of the second relay 8, and the output end of the second relay 8 is also connected with the positive pole of the main battery 3; the positive electrode of the output end of the photovoltaic control module 11 is also connected with the positive electrode of the auxiliary battery 1; the negative electrode of the output end of the photovoltaic control module 11, the negative electrode of the auxiliary battery 1 and the negative electrode of the main battery 3 are connected with the negative electrode of the output end of the AC/DC conversion module 6 at the same time. The photovoltaic control module 11, the auxiliary battery 1, the AC/DC conversion module 6, the first relay 7, and the second relay 8 are all connected to the communication detection module 5. The photovoltaic control module 11, the communication detection module 5, the AC/DC conversion module 6, the first relay 7 and the second relay 8 are integrally arranged.
The charging method comprises the following steps:
when no mains supply and no photovoltaic module 10 is connected:
(a) for an application scene with only one group of generators, the main generator 4 is connected with the main battery 3, the main generator 4 charges the main battery 3, when the voltage of the main battery 3 detected by the communication detection module 5 reaches a certain threshold value V0, the communication detection module 5 controls the first relay to be closed, and the main generator 4 charges the auxiliary battery 1 at the same time; v0 is the preset value of this patent.
(b) For an application scene with two groups of generators, a main generator 4 is connected with a main battery 3, an auxiliary generator 2 is connected with an auxiliary battery 1, and a communication detection module 5 reads state information of the auxiliary battery 1 in real time through communication; when the auxiliary battery 1 is in a charging state, when the auxiliary battery 1 is subjected to charging high-temperature protection or the SOC is more than or equal to 95% or the cell voltage is more than or equal to 3.5V, the communication detection module 5 controls the second relay 8 to be closed, the auxiliary battery 1 is conducted with the main battery 3, and the phenomena of disconnection of internal control of the auxiliary battery 1 and load rejection of the auxiliary generator 2 are prevented.
Secondly, when the photovoltaic module 10 is not accessed by the external commercial power 9:
(a) when the vehicle only has the main generator 4, the communication detection module 5 requests the photovoltaic control module 11 to output current as the maximum current I1 to charge the auxiliary battery 1; after detecting that the main battery 3 reaches the voltage value V0, the communication detection module 5 requests the photovoltaic control module 11 to output a current of I2(I1> I2), so as to charge the auxiliary battery 1 continuously with a small current; (the photovoltaic control module 11 effects charging of the auxiliary battery 1).
(b) When the vehicle has two generators, the communication detection module 5 requests the photovoltaic control module 11 to output current as the maximum current I1 to charge the auxiliary battery 1; when it is detected that the second relay 8 is closed, the communication detection module 5 requests the photovoltaic control module 11 to output a current of 0A (the photovoltaic control module 11 charges the auxiliary battery 1, and when the auxiliary battery 1 is connected with the main battery 3, the photovoltaic control module 11 stops charging).
Thirdly, when the photovoltaic module 10 and the external mains supply 9 are accessed:
(a) when the vehicle only has the main generator 4, the communication detection module 5 acquires a rated charging current value I3 supported by the auxiliary battery 1, requests the output current of the photovoltaic control module 11 to be the maximum current I1(I3 is greater than I1), and sends an instruction to the AC/DC conversion module 6 to set the range of the output current of the AC/DC conversion module to be I1-I3; when the SOC of the auxiliary battery 1 is more than or equal to 98 percent or the monomer voltage is more than or equal to 3.55V, the output current of the photovoltaic control module 11 is requested to be I2, the auxiliary battery 1 is continuously charged by a small current, meanwhile, the communication detection module 5 controls the first relay 7 to be closed, and the output current of the AC/DC conversion module 6 is controlled to be 0;
(b) when the vehicle has two generators, the communication detection module 5 obtains the rated charging current value I3 supported by the auxiliary battery 1, requests the photovoltaic control module 11 to output the maximum current I1(I3 is greater than I1), and sends a command to the AC/DC conversion module 6 to set the range of the requested output current to I1-I3. The communication detection module 5 requests the photovoltaic control module 11 to output current as the maximum current I1 to charge the auxiliary battery 1; when it is detected that the second relay 8 is closed, the communication detection module 5 requests the photovoltaic control module 11 to output a current of 0A.
Fourthly, when the main generator 4 and the auxiliary generator 2 of the vehicle are not active:
(a) when only the external commercial power 9 is connected, the communication detection module 5 detects the voltage at the two ends of the main battery 3, if the voltage at the two ends of the main battery is greater than V1, the communication detection module 5 controls the first relay 7 to be closed, sends an instruction to the AC/DC conversion module 6 to set the output current to be I4 (suitable for the charging current supported by the main battery 3), and when the voltage of the main battery 3 reaches V0, controls the first relay 7 to be opened, sends an instruction to set the output current of the AC/DC conversion module 6 to be I3, until the auxiliary battery 1 is fully charged and protected, the charging is stopped. (external commercial power 9 is implemented to charge the auxiliary battery 1 and the main battery 3)
(b) When the external utility power 9 and the photovoltaic module 10 are both connected, the communication detection module 5 detects the voltage at two ends of the main battery 3, and if the voltage at two ends is too much to be V1, the communication detection module controls to close the first relay 7, requests the photovoltaic control module 11 to output current I4 (suitable for the charging current supported by the main battery 3), and sends a command to the AC/DC conversion module 6 to set the output current I1-I4 (if I4< I1, the output current is set to be 0); when the voltage of the main battery 3 reaches V0, the first relay 7 is controlled to be switched off; requesting the output current of the photovoltaic control module 11 to be I1, sending a command to the AC/DC conversion module 6 to set the output current thereof to be I1-I3 (if I3< I1, the output current is set to be 0), sending a command to set the output current of the AC/DC conversion module 6 to be I3, and stopping charging until the auxiliary battery 1 is fully protected. (external commercial power 9 is implemented to charge the auxiliary battery 1 and the main battery 3, and the photovoltaic control module 11 is implemented to charge the auxiliary battery 1)
According to the vehicle-mounted intelligent energy distribution device with the structure, the auxiliary generator 2 and the main generator 4 can be reasonably matched for use, then the photovoltaic module 10 is preferentially used to charge the auxiliary battery 1 to the maximum extent, and the external commercial power 9 is used to charge the auxiliary battery 1 and the main battery 3; it is also possible to communicate with the main battery 3 and the auxiliary battery 1 to constantly monitor the states thereof. The auxiliary battery 1 and the main battery 3 are charged sufficiently, and the use of the motor home user is not influenced.
The above embodiments are merely illustrative of the technical concept and features of the present invention, and the present invention is not limited thereto, and any equivalent changes or modifications made according to the spirit of the present invention should be included in the scope of the present invention.

Claims (6)

1. An energy intelligent distribution device comprises an auxiliary battery (1) and a main battery (3), wherein the auxiliary battery (1) is used for being connected with an auxiliary generator (2), and the main battery (3) is used for being connected with a main generator (4), and is characterized in that: the power distribution assembly comprises a communication detection module (5), an AC/DC conversion module (6), a first relay (7) and a second relay (8), an auxiliary battery (1), the second power supply, the AC/DC conversion module (6), the first relay (7) and the second relay (8) are connected with the communication detection module (5) through communication cables, the input end of the AC/DC conversion module (6) is connected with the first power supply, the anode of the output end of the AC/DC conversion module (6) is connected with the anode of the auxiliary battery (1), the anode of the output end of the second power supply, the input end of the first relay (7) and the input end of the second relay (8), the output end of the first relay (7) and the output end of the second relay (8) are connected with the anode of a main battery (3), and the negative electrode of the output end of the AC/DC conversion module (6) is connected with the negative electrode of the auxiliary battery (1), the negative electrode of the main battery (3) and the negative electrode of the output end of the second power supply source.
2. The intelligent energy distribution device of claim 1, wherein: the first power supply is an external commercial power (9), and the external commercial power (9) is connected with the input end of the AC/DC conversion module (6).
3. The intelligent energy distribution device of claim 1, wherein: the second power supply source is a photovoltaic assembly (10) and a photovoltaic control module, the output end of the photovoltaic assembly (10) is connected with the input end of the photovoltaic control module (11), and the positive and negative electrodes of the output end of the photovoltaic control module (11) are correspondingly connected with the positive and negative electrodes of the output end of the AC/DC conversion module (6).
4. The intelligent energy distribution device of claim 3, wherein: the photovoltaic control module (11) is a photovoltaic controller.
5. The intelligent energy distribution device of claim 1, wherein: the AC/DC conversion module is characterized by further comprising an external direct current load (12), and the positive and negative poles of the output end of the AC/DC conversion module (6) can be correspondingly connected with the positive and negative poles of the external direct current load (12).
6. The intelligent energy distribution device of claim 1, wherein: the AC/DC conversion module (6) is an AC/DC converter.
CN202123436895.8U 2021-12-30 2021-12-30 Intelligent energy distribution device Active CN216672658U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202123436895.8U CN216672658U (en) 2021-12-30 2021-12-30 Intelligent energy distribution device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202123436895.8U CN216672658U (en) 2021-12-30 2021-12-30 Intelligent energy distribution device

Publications (1)

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CN216672658U true CN216672658U (en) 2022-06-03

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Country Link
CN (1) CN216672658U (en)

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