CN216833239U - Electric automobile quick charge system and vehicle - Google Patents
Electric automobile quick charge system and vehicle Download PDFInfo
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- CN216833239U CN216833239U CN202220396784.4U CN202220396784U CN216833239U CN 216833239 U CN216833239 U CN 216833239U CN 202220396784 U CN202220396784 U CN 202220396784U CN 216833239 U CN216833239 U CN 216833239U
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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
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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
- Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
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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
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/14—Plug-in electric vehicles
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Abstract
The utility model discloses an electric automobile quick charging system and a vehicle, which comprises a first battery module, a second battery module, a switching module and a switching control module; the positive electrode of the first battery module is connected with the positive electrode of the direct-current high-voltage bus; the negative electrode end of the second battery module is connected with the negative electrode of the direct current bus; the switching module comprises a first relay, a second relay and a third relay, and the control ends of the first relay, the second relay and the third relay are respectively connected with the switching control module; the negative end of the first battery module is connected with the positive end of the second battery module through a second relay; the negative pole end of the first battery module is connected with the negative pole of the direct-current bus through a first relay, and the positive pole end of the second battery module is connected with the positive pole of the direct-current high-voltage bus through a third relay. The utility model discloses can realize that compatible current platform drives, can support the high pressure again and surpass to fill.
Description
Technical Field
The utility model belongs to the technical field of the new forms of energy charges, concretely relates to electric automobile quick charge system and vehicle.
Background
The electric automobile is rapidly developed in recent years, and auxiliary systems such as an intelligent driving technology and an automatic driving technology are applied, so that the electric automobile is accepted by consumers. With the continuous increase of driving range, the capacity of the power battery is larger and larger, so that the charging time is longer and longer, even if the quick charging is used, the charging time is also 45 minutes to 1.5 hours, and the user experience is reduced to a great extent. Meanwhile, if all vehicles are provided with high-voltage systems, the whole driving system is switched to the high-voltage system, so that the cost is greatly increased; and, after the vehicle is fixed to high voltage system, will no longer be suitable for the existing facility that charges in market, can't charge with all electric pile of filling. The traditional power battery combination is only used for carrying out series connection and parallel connection combination on the battery module, after the voltage platform combination is completed, the power battery voltage platform is locked, and the charging pile of a higher voltage platform on the market cannot be adapted to be quickly charged. And the traditional power battery combination control system is limited to a management system, a detection system and a high-voltage control system, but the power battery combination control system is not realized.
Referring to fig. 1, for example, CN201820447687.7 discloses a power battery pack, a power battery pack charging system and an electric vehicle, which belong to the field of electric vehicles and can realize dc charging of an electric vehicle equipped with a high power battery system. The power battery pack comprises a switching device, a direct-current charging positive terminal, a direct-current charging negative terminal and at least two serially-connected sub battery modules, wherein the switching device is used for electrically connecting any one or any plurality of adjacent sub battery modules with the direct-current charging positive terminal and the direct-current charging negative terminal to form a communicated loop in the direct-current charging process of the power battery pack.
At present, a power battery control system mainly aims at controlling and low-voltage power supplement of each sub-battery module, but cannot change the voltage of a power battery platform connected in series. Along with the increase of the endurance mileage, the voltage platform is continuously lifted, so that the vehicle-mounted driving part and the vehicle-mounted charging part can be matched only by lifting the voltage platform.
Therefore, there is a need to develop a new fast charging system for electric vehicles and vehicles.
Disclosure of Invention
The utility model provides an electric automobile quick charge system and vehicle can realize that compatible current platform drives, can support the high pressure again and surpass to fill.
In a first aspect, the utility model discloses a quick charging system of an electric vehicle, which comprises a first battery module, a second battery module, a switching module and a switching control module;
the positive electrode of the first battery module is connected with the positive electrode of the direct-current high-voltage bus;
the negative electrode end of the second battery module is connected with the negative electrode of the direct current bus;
the switching module comprises a first relay, a second relay and a third relay, and the control ends of the first relay, the second relay and the third relay are respectively connected with the switching control module;
the negative end of the first battery module is connected with the positive end of the second battery module through a second relay, when the second relay is in a closed state, the first battery module is connected with the second battery module in series, and when the second relay is in an open state, the first battery module is disconnected with the second battery module;
the negative pole end of the first battery module is connected with the negative pole of the direct current bus through a first relay, the positive pole end of the second battery module is connected with the positive pole of the direct current high-voltage bus through a third relay, the second relay is in a disconnected state, the first relay and the third relay are both in a closed state, and the first battery module is connected with the second battery module in parallel.
Optionally, the negative terminal of the first battery module is connected with the positive terminal of the second battery module through a switch K2 of the second relay;
the negative electrode end of the first battery module is connected with the negative electrode of the direct-current bus through a switch K1 of a first relay;
and the positive terminal of the second battery module is connected with the positive electrode of the direct-current high-voltage bus through a switch K3 of a third relay.
Optionally, the control coil of the first relay, the control coil of the second relay, and the control coil of the third relay are respectively connected to the switching control module.
In a second aspect, a vehicle according to the present invention employs the electric vehicle rapid charging system as described in this embodiment.
The utility model has the advantages of it is following: the existing voltage platform driving system is supported, meanwhile, super fast charging can be supported, the compatible adaptability of products is improved, and the product customer experience performance is improved.
Drawings
Fig. 1 is a schematic block diagram of a rapid charging system for an electric vehicle according to the present embodiment;
in the figure, 1, a switching module, 2, a first relay, 3, a second relay, 4, a third relay, 5, a first battery module, 6, a second battery module, 7, a switching control module, 8, a direct current high-voltage bus positive electrode, 9, a direct current bus negative electrode, 10, a system control module, 11, a driving control module, 12, a driving module, 13, a charging interface, 14, a charging control module, 15, a communication control module, 16 and an external communication interface.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings.
As shown in fig. 1, in the present embodiment, a fast charging system for an electric vehicle includes a first battery module 5, a second battery module 6, a switching module 1, and a switching control module 7. The positive electrode of the first battery module 5 is connected with the positive electrode 8 of the direct-current high-voltage bus, and the negative electrode of the second battery module 6 is connected with the negative electrode 9 of the direct-current bus. The switching module 1 comprises a first relay 2, a second relay 3 and a third relay 4, and control ends of the first relay 2, the second relay 3 and the third relay 4 are respectively connected with a switching control module 7. And the negative terminal of the first battery module 5 is connected with the positive terminal of the second battery module 6 through the second relay 3. When the second relay 3 is in a closed state, the first battery module 5 and the second battery module 6 are connected in series, and when the second relay 3 is in an open state, the first battery module 5 and the second battery module 6 are disconnected. The negative pole end of the first battery module 5 is connected with a direct current bus negative pole 9 through a first relay 2, the positive pole end of the second battery module 6 is connected with a direct current high-voltage bus positive pole 8 through a third relay 4, the second relay 3 is in an off state, the first relay 2 and the third relay 4 are both in an on state, and the first battery module 5 is connected with the second battery module 6 in parallel. The quick charging system for the electric automobile meets the requirements of different voltage platforms.
In this embodiment, the first battery module 5 and the second battery module 6 are identical-voltage-plateau battery modules.
In this embodiment, the negative terminal of the first battery module 5 is connected to the positive terminal of the second battery module 6 through the switch K2 of the second relay 3; the negative pole end of the first battery module 5 is also connected with the negative pole 9 of the direct current bus through a switch K1 of the first relay 2; and the positive terminal of the second battery module 6 is connected with the positive pole 8 of the direct-current high-voltage bus through a switch K3 of the third relay 4.
In this embodiment, the control coil of the first relay 2, the control coil of the second relay 3, and the control coil of the third relay 4 are connected to a switching control module 7, respectively.
When the vehicle charging control system is used, the switching control module 7 is connected with a system control module 10 on a vehicle, the system control module 10 is respectively connected with a charging control module 14, a communication control module 15 and a driving control module 11 on the vehicle, the charging control module 14 is respectively connected with a charging interface 13 and the communication control module 15, and the communication control module 15 is connected with an external communication interface 16; the drive control module 11 is connected with the drive module 12.
In this embodiment, the electric vehicle quick charging system is mutually matched with the system control module 10, the driving control module 11, the driving module 12, the charging interface 13, the charging control module 14, the communication control module 15 and the external communication interface 16, so that three different working modes can be realized.
The first working mode is a voltage platform driving working mode, the system control module 10 controls the switching control module 7 by issuing a control instruction, and the switching control module 7 receives the instruction to complete the ordered control of the switching module 1: the opening of the switch K2 of the second relay 3, the closing of the switch K1 of the first relay 2, and the closing of the switch K3 of the third relay 4 are sequentially achieved. Considering that the first battery module 5 and the second battery module 6 belong to the same voltage platform and can be used in parallel, the driving control module 11 controls the driving module 12 to be directly connected to the positive pole 8 of the direct-current high-voltage bus and the negative pole 9 of the direct-current bus for being communicated to get electricity for driving the electric automobile.
The second working mode is a voltage platform slow charging mode and can be matched with 200-500V charging piles in the existing market for charging. When the gun is inserted for charging, information interaction is carried out on the external communication interface 16 and the charging pile, and the voltage platform information of the charging pile is transmitted to the charging control module 14 and the system control module 10 through the communication control module 15. The system control module 10 controls the switching control module 7 by issuing a control instruction, and the switching control module 7 receives the instruction to complete the ordered control of the switching module 1: the opening of the switch K2 of the second relay 3, the closing of the switch K1 of the first relay 2, and the closing of the switch K3 of the third relay 4 are sequentially achieved. And the charging control module 14 controls the charging interface 13 to be connected to the direct-current high-voltage bus positive electrode 8 and the direct-current bus negative electrode 9 to be communicated, so that the existing platform voltage charging is completed.
The third working mode is a high-voltage platform super-charging mode and can be adapted to 500-900V charging piles in the existing market for super quick charging. When the gun is inserted for charging, information interaction is carried out on the external communication interface 16 and the charging pile, and the voltage platform information of the charging pile is transmitted to the charging control module 14 and the system control module 10 through the communication control module 15. The system control module 10 controls the switching control module 7 by issuing a control instruction, and the switching control module 7 receives the instruction to complete the ordered control of the switching module 1: the opening of the switch K1 of the first relay 2 and the switch K3 of the third relay 4, and the closing of the switch K2 of the second relay 3 are sequentially achieved. And the charging control module 14 controls the charging interface 13 to be connected to the direct-current high-voltage bus positive electrode 8 and the direct-current bus negative electrode 9 to be communicated, so that super quick charging of the high-voltage platform is completed. Because the voltage platform is increased by one time, the charging current is unchanged, and the charging rate is 4 times of the same battery capacity, the charging rate is greatly increased.
In this embodiment, a vehicle adopts the electric vehicle quick charging system as described in this embodiment.
Claims (4)
1. The utility model provides an electric automobile quick charge system which characterized in that: the battery pack comprises a first battery module (5), a second battery module (6), a switching module (1) and a switching control module (7);
the positive electrode of the first battery module (5) is connected with the positive electrode (8) of the direct-current high-voltage bus;
the negative electrode end of the second battery module (6) is connected with the negative electrode (9) of the direct current bus;
the switching module (1) comprises a first relay (2), a second relay (3) and a third relay (4), and control ends of the first relay (2), the second relay (3) and the third relay (4) are respectively connected with a switching control module (7);
the negative end of the first battery module (5) is connected with the positive end of the second battery module (6) through a second relay (3), the first battery module (5) is connected with the second battery module (6) in series when the second relay (3) is in a closed state, and the first battery module (5) is disconnected with the second battery module (6) when the second relay (3) is in an open state;
the negative pole end of the first battery module (5) is connected with a direct-current bus negative pole (9) through a first relay (2), the positive pole end of the second battery module (6) is connected with a direct-current high-voltage bus positive pole (8) through a third relay (4), the second relay (3) is in an off state, the first relay (2) and the third relay (4) are both in a closed state, and the first battery module (5) is connected with the second battery module (6) in parallel.
2. The electric vehicle quick charging system according to claim 1, characterized in that: the negative end of the first battery module (5) is connected with the positive end of the second battery module (6) through a switch K2 of the second relay (3);
the negative electrode end of the first battery module (5) is also connected with the negative electrode (9) of the direct current bus through a switch K1 of the first relay (2);
and the positive end of the second battery module (6) is connected with the positive electrode (8) of the direct-current high-voltage bus through a switch K3 of a third relay (4).
3. The electric vehicle quick charging system according to claim 1 or 2, characterized in that: and the control coil of the first relay (2), the control coil of the second relay (3) and the control coil of the third relay (4) are respectively connected with a switching control module (7).
4. A vehicle, characterized in that: the electric vehicle quick charging system according to any one of claims 1 to 3 is adopted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220396784.4U CN216833239U (en) | 2022-02-25 | 2022-02-25 | Electric automobile quick charge system and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220396784.4U CN216833239U (en) | 2022-02-25 | 2022-02-25 | Electric automobile quick charge system and vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216833239U true CN216833239U (en) | 2022-06-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220396784.4U Active CN216833239U (en) | 2022-02-25 | 2022-02-25 | Electric automobile quick charge system and vehicle |
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| Country | Link |
|---|---|
| CN (1) | CN216833239U (en) |
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2022
- 2022-02-25 CN CN202220396784.4U patent/CN216833239U/en active Active
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Address after: 401133 room 208, 2 house, 39 Yonghe Road, Yu Zui Town, Jiangbei District, Chongqing Patentee after: Deep Blue Automotive Technology Co.,Ltd. Address before: 401133 room 208, 2 house, 39 Yonghe Road, Yu Zui Town, Jiangbei District, Chongqing Patentee before: CHONGQING CHANGAN NEW ENERGY AUTOMOBILE TECHNOLOGY Co.,Ltd. |