CN217917831U - Electric automobile high pressure control system and car - Google Patents
Electric automobile high pressure control system and car Download PDFInfo
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- CN217917831U CN217917831U CN202221031941.8U CN202221031941U CN217917831U CN 217917831 U CN217917831 U CN 217917831U CN 202221031941 U CN202221031941 U CN 202221031941U CN 217917831 U CN217917831 U CN 217917831U
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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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Abstract
The utility model discloses an electric automobile high pressure control system and car, the system includes battery box and high-pressure box, be provided with the battery module that a plurality of battery monomer series-parallel formed in the battery box, the positive negative pole of battery module is connected to the positive negative pole binding post on the battery box; a high-voltage control module, a charging module and a discharging module are arranged in the high-voltage box; the PDU positive and negative connecting terminals connected with the positive and negative connecting terminals on the battery box body are arranged on the high-voltage box PDU body; in the high-voltage box, the PDU positive and negative connecting terminals are respectively connected to a discharging terminal and a charging terminal on the high-voltage box body through a charging module and a discharging module; the discharging terminal and the charging terminal are respectively connected with the vehicle-mounted electric appliance and the charger; and the output end of the high-voltage control module is connected to the control ends of the charging module and the discharging module and is used for controlling the work of the charging module and the discharging module. The system is simple in structure, stable and reliable, and convenient to overhaul after a fault occurs.
Description
Technical Field
The utility model relates to an electric automobile high-voltage system field, in particular to new convenient electric automobile high-voltage control system and car of dismantling the maintenance.
Background
At present, in the new energy automobile industry, electronic components such as relays, pre-charging fuses and the like for protecting a power battery system are generally arranged inside a battery PACK. When a vehicle battery high-voltage system breaks down, various components can only be checked by a method for disassembling a battery pack to solve the problem, the method is low in efficiency and complex in operation, and the battery pack is difficult to disassemble, so that the battery high-voltage system in the prior art is not favorable for overhauling after the fault.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome prior art not enough, provide an electric automobile high pressure control system and car for adopt new modified high-pressure system, with relay, the positive owner of owner burden integration in PDU, thereby can reduce the dismantlement of battery package when overhauing.
In order to achieve the purpose, the invention adopts the technical scheme that: a high-voltage control system of an electric automobile comprises a battery box and a high-voltage box PDU, wherein a battery module formed by connecting a plurality of battery monomers in series and parallel is arranged in the battery box, and the positive electrode and the negative electrode of the battery module are connected to positive and negative electrode connecting terminals on a battery box body;
a high-voltage control module, a charging module and a discharging module are arranged in the high-voltage box PDU; the PDU positive and negative connecting terminals connected with the positive and negative connecting terminals on the battery box body are arranged on the high-voltage box PDU body; in the high-voltage box PDU, a PDU positive and negative connecting terminal is respectively connected to a discharging terminal and a charging terminal on a high-voltage box PDU body through a charging module and a discharging module; the discharging terminal and the charging terminal are respectively connected with the vehicle-mounted electric appliance and the charger;
and the output end of the high-voltage control module is connected to the control ends of the charging module and the discharging module and is used for controlling the work of the charging module and the discharging module.
The positive terminal and the negative terminal on the high-voltage box PDU box body are respectively PDU + and PDU-; the discharging module comprises a total positive relay and a total negative relay; an electrical appliance interface is arranged on the high-voltage box PDU box body; in the PDU box body, the PDU + is connected to the anode of the electrical appliance interface through a total positive relay, and the PDU-is connected to the cathode of the electrical appliance interface through a total negative relay; and the control ends of the total positive relay and the total negative relay are respectively connected to the high-voltage control module.
And two ends of the main positive relay are connected in parallel to be provided with a pre-charging loop.
And a fuse is connected in series between the main positive relay and the positive electrode of the electrical appliance interface.
The charging module comprises a charging relay, a charging interface is arranged on the high-voltage box PDU box body, the PDU + is connected with the positive pole of the charging interface through the charging relay, and the PDU-is connected to the negative pole of the total negative relay connected to the charging interface.
The battery box is internally provided with a heating film, a heating film power supply input interface is arranged on the box body of the battery box, a heating film power supply output interface used for being connected with the heating film power supply input interface is arranged on the high-voltage box PDU box body, a heating relay is arranged in the high-voltage box PDU box body, and the heating film power supply output interface is respectively connected with a positive terminal and a negative terminal on the PDU box body and is serially connected with the heating relay and a fuse on a connecting loop; and the control end of the heating relay is connected with the high-voltage control module.
The battery box is internally provided with a battery management unit BMU which is used for monitoring the working state of the battery, and the battery box body and the high-voltage box PDU box body are respectively provided with an interface which is connected with each other and is used for realizing the communication connection between the battery management unit BMU and the high-voltage control unit.
The vehicle control device is characterized in that a vehicle control unit is arranged in the high-voltage box PDU and connected with the high-voltage control module, and the vehicle control unit is connected with an in-vehicle communication network through a vehicle communication interface arranged on a high-voltage box PDU box body.
An automobile comprises the high-voltage control system of the electric automobile.
The utility model has the advantages of: the battery pack and the high-voltage box are improved, the use of electric control devices in the battery pack is reduced, the battery pack is designed in the high-voltage box, fault troubleshooting can be conveniently carried out through the high-voltage box when a system or a circuit fails, the battery pack is simple and reliable, the disassembly of a battery box body is reduced, and the fault troubleshooting efficiency is improved.
Drawings
The contents of the expressions in the various figures of the present specification and the labels in the figures are briefly described as follows:
fig. 1 is a schematic diagram of the high-voltage system of the present invention.
The reference numbers are respectively:
1. heating the film; 2. a heating film power supply input interface; 3. a heating film power supply output interface; 4. heating the relay; 5. heating the film fuse; 6. a BMU slave; 7. a BMS host; 8. a master positive relay; 9. a master negative relay; 10. a pre-charging relay; 11. a Hall sensor; 12. and (6) a communication interface of the whole vehicle.
Detailed Description
The following description of preferred embodiments of the present invention will be made in further detail with reference to the accompanying drawings.
The main invention of the application is to improve the battery box and the high-voltage box PDU, and improve the components in the box body, so that electrical elements in the battery box body are reduced as much as possible, and the electrical elements are integrated in the PDU as much as possible, so that when the electrical high voltage is abnormal, the high-voltage box is disassembled without disassembling a battery pack during maintenance, and the problems of time and labor waste caused by the disassembly and maintenance of the battery box and difficulty in maintenance during faults are reduced. The specific scheme is as follows:
as shown in fig. 1, includes a battery box and a high voltage box PDU;
the battery box is internally provided with a plurality of battery modules formed by connecting a plurality of battery monomers in series and parallel, the battery modules can be connected in series or in parallel to form a battery template, and the battery modules can finally form a positive electrode and a negative electrode. The battery modules arranged in series-parallel connection can be connected in advance through the maintenance switch, and the batteries are convenient to overhaul in the later period.
A plurality of interface terminals are preset on a box body of the battery box and comprise an internal communication interface, a heating film power supply input interface, and a positive terminal PACK + and a negative terminal PACK-on the box body of the battery box, and the positive and negative electrodes of the battery module are correspondingly connected to a positive and negative terminal PACK + and a positive and negative terminal PACK-on the box body of the battery box respectively; the heating film is arranged in the battery box body according to design requirements and used for heating the battery in the battery template, and the anode and the cathode of the heating film are correspondingly connected to the anode and the cathode of the power supply input interface of the heating film, namely heating + and heating-are used as the power supply input end of the heating film. Be provided with BMU in the battery box from the machine, be provided with battery management unit BMU in the battery box promptly, battery management unit BMU is used for monitoring the operating condition of battery, if control battery electric quantity, temperature management etc. are provided with the interface that both are connected on battery box and the high-pressure box PDU box respectively: and the internal communication interface is used for realizing the communication connection between the battery management unit BMU and the high-voltage control unit. Wherein the internal communication interface can be provided with a special butt-joint connector according to the preset requirements, and the connector pin comprises a plurality of signal controls: as shown in fig. 1, the internal communication may include a power pin, a CAN communication pin, an interlock pin, etc.
In the high voltage box PDU:
a high-voltage control module, a charging module and a discharging module are arranged in the high-voltage box PDU; as shown in fig. 1, the high voltage control module is a BMS host for implementing communication with a BMU slave in the battery box and implementing management and control of a battery template in the battery box.
Be provided with the positive negative pole binding post of PDU who is connected with positive negative pole binding post on the battery box on high-pressure box PDU box body: PDU +, PDU-; connecting PACK + with PDU + and connecting PDU + with PDU-;
the high-voltage box PDU box body is also provided with a discharging terminal and a charging terminal, and the discharging terminal is an interface for connecting a vehicle-mounted electrical appliance; the charging terminal is a terminal for connecting a vehicle-mounted charger. Wherein discharge terminal includes: MCU connecting terminal MCU + and MCU-; PTC terminal PTC +, PTC-, compressor terminal compressor +, compressor-, and DCDC terminal DCDC +, DCDC-. The charging terminal comprises a fast charging interface, a slow charging interface and a slow charging interface.
In the high-voltage box PDU, the PDU + is connected to a plurality of interfaces through the total negative relay, and the PDU + comprises a discharging terminal and a charging terminal, wherein the discharging terminal is used for connecting a vehicle-mounted electric appliance, and the charging terminal is used for connecting a vehicle charging circuit or a charger. As shown in fig. 1, the discharge terminal interface includes: MCU connecting terminal MCU + and MCU-; PTC terminal PTC +, PTC-, compressor terminal compressor +, compressor-, and DCDC terminal DCDC +, DCDC-.
In the PDU box body, the PDU-is connected to the quick charge-, the MCU-, the PTC-, the compressor-, the DCDC-, and the slow charge-through a total negative relay; the PDU + is connected to the fast charging + through a fast charging relay; the PDU + is connected to MCU +, PTC +, compressor +, DCDC +, etc. via a general positive relay, and fuses may be provided in the connected loops as needed, as shown in fig. 1, and 20A, 40A, 10A, etc. fuses may be provided. Meanwhile, a pre-charging circuit is required to be arranged, the pre-charging circuit is a series structure of a pre-charging relay and a pre-charging resistor, and the pre-charging circuit is connected in parallel with two ends of the main positive relay after being connected in series. Copper bars can be adopted for connection in the connection relation. PDU + is connected to the positive pole of the heating film power supply output terminal on the PDU box body behind the heating relay and the fuse of establishing ties, PDU-is connected to the negative pole of the heating film power supply output terminal on the PDU box body through total negative relay.
The positive and negative electrodes of the heating film power supply input terminal on the battery box body are correspondingly connected with the heating film power supply output terminal on the PDU box body, and the heating film power supply input terminal is used for supplying power to the heating film.
As shown in fig. 1, there is a BMS host in the PDU box, and the BMS host is provided with a relay control terminal, a current detection terminal, etc. for controlling each relay and collecting current. The current adopts a Hall sensor which is connected in series between the main negative relay and the PDU-. The relay control output end of the BMS is used for being connected with the control end of each relay, and each relay comprises a total positive relay, a total negative relay, a pre-charging relay, a quick-charging relay, a heating relay and the like. The BMS host is connected with the battery box body in an internal communication mode and used for being connected with the BMS slave machines to obtain corresponding data.
A vehicle control unit VCU is arranged in the high-voltage box PDU, the vehicle control unit is in communication connection with the BSM host, and the vehicle control unit is connected with an in-vehicle communication network CAN through a vehicle communication interface arranged on a high-voltage box PDU box body, so that communication between the PDU and an external connection is realized.
The working principle and the characteristics of the application are introduced as follows:
1. improve battery box and PDU box, in removing the PDU as far as with the electric original paper in the battery package, when electric trouble, circuit trouble, as long as do not relate to electric core problem, all can dismantle PDU box body fast overhaul fast, avoided prior art still need dismantle the maintenance mode that wastes time and energy of battery box, the electric system of modification makes things convenient for the maintenance in later stage more.
2. The electrical system has simple and reliable structure, copper bars can be adopted for PDU internal connection, batteries do not need to be considered for arrangement of each loop, and the production and the realization are more convenient;
3. in the theory of operation, when external power supply, the BMS host computer realizes external discharge through total positive relay of control, total negative relay and pre-charge relay, and when charging, the BMS host computer realizes charge control through control quick charge relay and main negative relay. When the vehicle works, the state information of the battery cell is acquired through the communication between the BMS host and the BMS slave, and the communication interaction among all parts of the whole vehicle is realized through the VCU and the external communication; the BMS host computer can implement the control current data through hall sensor, can realize the current monitoring in the PDU box.
The utility model discloses a with electronic components transfer to in the galvanic cell package and make the design of PDU high-pressure box in the high-pressure box, when making battery system break down, only need unpack apart the high-pressure box maintenance, need not unpack apart battery system, made things convenient for the maintenance of product. Meanwhile, the number of the battery plug-in components is reduced, and the risk of water seepage of the battery pack is reduced.
It is clear that the specific implementation of the invention is not restricted to the above-described embodiments, but that various insubstantial modifications of the inventive process concept and technical solutions are within the scope of protection of the invention.
Claims (9)
1. The utility model provides an electric automobile high pressure control system, includes battery box and high-pressure box PDU, its characterized in that: a plurality of battery modules formed by connecting battery monomers in series and parallel are arranged in the battery box, and the positive and negative electrodes of the battery modules are connected to positive and negative electrode connecting terminals on the battery box body;
a high-voltage control module, a charging module and a discharging module are arranged in the high-voltage box PDU; the PDU positive and negative connecting terminals connected with the positive and negative connecting terminals on the battery box body are arranged on the high-voltage box PDU body; in the high-voltage box PDU, a PDU positive and negative connecting terminal is respectively connected to a discharging terminal and a charging terminal on the high-voltage box PDU body through a charging module and a discharging module; the discharging terminal and the charging terminal are respectively connected with the vehicle-mounted electric appliance and the charger;
and the output end of the high-voltage control module is connected to the control ends of the charging module and the discharging module and is used for controlling the work of the charging module and the discharging module.
2. The high-voltage control system of the electric vehicle as claimed in claim 1, wherein: the positive terminal and the negative terminal on the high-voltage box PDU box body are respectively PDU + and PDU-; the discharging module comprises a total positive relay and a total negative relay; an electrical appliance interface is arranged on the high-voltage box PDU box body; in the PDU box body, the PDU + is connected to the anode of the electrical appliance interface through a total positive relay, and the PDU-is connected to the cathode of the electrical appliance interface through a total negative relay; and the control ends of the total positive relay and the total negative relay are respectively connected to the high-voltage control module.
3. The high-voltage control system for the electric vehicle as claimed in claim 2, wherein: and two ends of the main positive relay are connected in parallel with a pre-charging loop.
4. A high voltage control system for an electric vehicle as claimed in claim 2 or 3, wherein: and a fuse is connected in series between the main positive relay and the positive electrode of the electrical appliance interface.
5. A high voltage control system for an electric vehicle as claimed in claim 2 or 3, wherein: the charging module comprises a charging relay, a charging interface is arranged on the high-voltage box PDU box body, the PDU + is connected with the positive pole of the charging interface through the charging relay, and the PDU-is connected to the negative pole of the total negative relay connected to the charging interface.
6. A high voltage control system for an electric vehicle as claimed in claim 2 or 3, wherein: the battery box is internally provided with a heating film, a heating film power supply input interface is arranged on the box body of the battery box, a heating film power supply output interface used for being connected with the heating film power supply input interface is arranged on the high-voltage box PDU box body, a heating relay is arranged in the high-voltage box PDU box body, and the heating film power supply output interface is respectively connected with a positive terminal and a negative terminal on the PDU box body and is serially connected with the heating relay and a fuse on a connecting loop; and the control end of the heating relay is connected with the high-voltage control module.
7. A high voltage control system for an electric vehicle as claimed in any one of claims 1 to 3, wherein: the battery box is internally provided with a battery management unit BMU which is used for monitoring the working state of the battery, and the battery box body and the high-voltage box PDU box body are respectively provided with an interface which is connected with each other and is used for realizing the communication connection between the battery management unit BMU and the high-voltage control unit.
8. A high voltage control system for an electric vehicle as claimed in any one of claims 1 to 3, wherein: the vehicle control device is characterized in that a vehicle control unit is arranged in the high-voltage box PDU and connected with the high-voltage control module, and the vehicle control unit is connected with an in-vehicle communication network through a vehicle communication interface arranged on a high-voltage box PDU box body.
9. An automobile, characterized in that: the automobile comprises an electric automobile high-voltage control system according to any one of claims 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221031941.8U CN217917831U (en) | 2022-04-29 | 2022-04-29 | Electric automobile high pressure control system and car |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221031941.8U CN217917831U (en) | 2022-04-29 | 2022-04-29 | Electric automobile high pressure control system and car |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217917831U true CN217917831U (en) | 2022-11-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221031941.8U Active CN217917831U (en) | 2022-04-29 | 2022-04-29 | Electric automobile high pressure control system and car |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217917831U (en) |
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2022
- 2022-04-29 CN CN202221031941.8U patent/CN217917831U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230504 Address after: Floor 18, Building 13, Science and Technology Industrial Park, No. 717 Zhongshan South Road, Wuhu High tech Industrial Development Zone, Yijiang District, Wuhu City, Anhui Province, 241000 Patentee after: Wuhu Tairui Automobile Co.,Ltd. Address before: 241000 Building 8, science and Technology Industrial Park, 717 Zhongshan South Road, Yijiang District, Wuhu City, Anhui Province Patentee before: Chery Commercial Vehicles (Anhui) Co., Ltd. |
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| TR01 | Transfer of patent right |