Vehicle high voltage system

Abstract

The utility model relates to a vehicle high-voltage system, which belongs to the technical field of vehicle refitting and comprises an AC / DC (alternating current / direct current) rectifying module for acquiring externally input low-voltage alternating current and rectifying the low-voltage alternating current to obtain high-voltage direct current, and an all-in-one controller electrically connected with the AC / DC rectifying module and used for acquiring three-phase alternating current based on the high-voltage direct current, the permanent magnet synchronous motor is electrically connected with the all-in-one controller and used for receiving the three-phase alternating current and providing power for a vehicle, and the driving motor is electrically connected with the all-in-one controller, mechanically connected with the engine, the fan, the inflating pump and the air conditioner compressor and used for receiving the three-phase alternating current and driving the generator, the fan, the inflating pump and the air conditioner compressor to work. The permanent magnet synchronous motor replaces an original diesel engine to provide power for the vehicle, and the auxiliary driving motor is in chain transmission connection with an original vehicle load, so that the cost of a high-voltage system of the whole vehicle is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to vehicle refitting technical field especially relates to a vehicle high pressure system. BACKGROUND

[0002] With the continuous development of oil-to-electricity technology, it helps to reduce carbon emissions and reduce noise pollution, and improve energy utilization efficiency. Oil-to-electricity technology is not limited to simple energy replacement, it also accompanies a series of innovation and application of intelligent technology. However, if all the batteries are used to replace the traditional diesel engine to provide power for the whole vehicle, and the high-voltage components need to be developed and customized, and the cost is higher. Therefore, there is a technical problem of high cost of high-voltage components of oil-to-electricity vehicle in the prior art. SUMMARY

[0003] Therefore, it is necessary to provide a vehicle high pressure system to solve the technical problem of high cost of high-voltage components of oil-to-electricity vehicle.

[0004] In order to achieve the above purpose, the utility model provides a vehicle high pressure system, comprising:

[0005] AC / DC rectifier module for obtaining external input low-voltage alternating current and rectifying low-voltage alternating current to obtain high-voltage direct current;

[0006] All-in-one controller, electrically connected with AC / DC rectifier module, for obtaining three-phase alternating current based on high-voltage direct current;

[0007] Permanent magnet synchronous motor, electrically connected with all-in-one controller, for receiving three-phase alternating current and providing power for vehicle;

[0008] Drive motor, electrically connected with all-in-one controller and mechanically connected with engine, fan, air pump and air conditioner compressor, for receiving three-phase alternating current and driving generator, fan, air pump and air conditioner compressor to work.

[0009] In a possible implementation manner, the AC / DC rectifier module comprises:

[0010] Voltage protection device for current limiting when rectifying low-voltage alternating current.

[0011] In a possible implementation manner, the AC / DC rectifier module further comprises:

[0012] Rectifier for rectifying low-voltage alternating current to obtain high-voltage direct current.

[0013] In a possible implementation manner, the AC / DC rectifier module further comprises:

[0014] The low-voltage communication control unit is electrically connected with the all-in-one controller and is configured to control the AC / DC rectification module to be powered off.

[0015] In a possible implementation, the all-in-one controller comprises:

[0016] The pre-charging unit is electrically connected with the AC / DC rectification module and is configured to receive high-voltage direct current.

[0017] In a possible implementation, the all-in-one controller further comprises:

[0018] The DC / AC inversion unit is electrically connected with the pre-charging unit and is configured to obtain three-phase alternating current based on the high-voltage direct current.

[0019] In a possible implementation, the all-in-one controller further comprises:

[0020] The PDU power distribution unit is electrically connected with the DC / AC inversion unit, the permanent magnet synchronous motor and the drive motor and is configured to transmit the three-phase alternating current to the permanent magnet synchronous motor and the drive motor respectively.

[0021] In a possible implementation, the all-in-one controller further comprises:

[0022] The low-voltage communication control unit is electrically connected with the low-voltage communication control unit of the AC / DC conversion module.

[0023] In a possible implementation, the system further comprises:

[0024] The torque converter is electrically connected with the permanent magnet synchronous motor and is configured to provide power for the vehicle.

[0025] In a possible implementation, the drive motor is mechanically connected with the engine, the fan, the air pump and the air conditioner compressor, and the drive motor comprises:

[0026] The drive motor is mechanically connected with the generator, the fan, the air pump and the air conditioner compressor in a chain transmission manner.

[0027] The utility model provides a kind of vehicle high pressure system, comprising: AC / DC rectifier module, for obtaining the low-voltage alternating current of external input, and rectifies low-voltage alternating current, obtains high-voltage direct current;All-in-one controller, with AC / DC rectifier module electric connection, for obtaining three-phase alternating current based on high-voltage direct current;Permanent magnet synchronous motor, with all-in-one controller electric connection, for receiving three-phase alternating current and providing power for vehicle;Driving motor, with all-in-one controller electric connection and with engine, fan, air pump and air conditioning compressor mechanical connection, for receiving three-phase alternating current, and drive generator, fan, air pump and air conditioning compressor work.The utility model replaces original diesel engine by permanent magnet synchronous motor and provides power for vehicle, and by auxiliary driving motor, engine, fan, brake air pump and air conditioning compressor can be connected by chain drive to reduce the cost of high pressure system of whole vehicle. BRIEF DESCRIPTION OF DRAWINGS

[0028] Figure 1 It is the structure diagram of the utility model vehicle high pressure system;

[0029] Figure 2 It is the overall system flow chart of an embodiment of the utility model vehicle high pressure system. DETAILED DESCRIPTION

[0030] The preferred embodiments of the utility model are specifically described below in conjunction with the drawings, wherein the drawings constitute a part of the present application, and are used together with the embodiments of the utility model to explain the principles of the utility model, and are not used to limit the scope of the utility model.

[0031] Figure 1 It is the structure diagram of the utility model vehicle high pressure system and Figure 2 It is the overall system flow chart of an embodiment of the utility model vehicle high pressure system, comprising:

[0032] AC / DC (alternating current / direct current) rectifier module 101, for obtaining the low-voltage alternating current of external input, and rectifies low-voltage alternating current, obtains high-voltage direct current;

[0033] All-in-one controller 102, with AC / DC rectifier module 101 electric connection, for obtaining three-phase alternating current based on high-voltage direct current;

[0034] Permanent magnet synchronous motor 103, with all-in-one controller 102 electric connection, for receiving three-phase alternating current and providing power for vehicle;

[0035] Driving motor 104, with all-in-one controller 102 electric connection and with engine 105, fan 106, air pump 107 and air conditioning compressor 108 mechanical connection, for receiving three-phase alternating current, and drive generator, fan 106, air pump 107 and air conditioning compressor 108 work.

[0036] It can be understood that the utility model provides a kind of oil changes to drag electric engineering machinery vehicle high pressure system, and the system includes: AC / DC rectifier module 101, multi-in-one controller 102, main drive permanent magnet synchronous motor 103, auxiliary drive motor 104.Multi-in-one controller 102 is converted into voltage meeting motor demand by alternating current 380V mains, and permanent magnet synchronous motor 103 replaces original diesel engine 105, connects variator to provide power for vehicle;Auxiliary drive motor 104 connects the generator of original vehicle, fan 106, brake air pump 107 and air conditioner compressor 108 by chain drive.

[0037] The oil changes to drag electric engineering machinery vehicle high pressure system of the utility model can retain the chain drive equipment of original diesel engine 105, and high pressure components can use mass production products, without developing customization, and the overall cost is lower.

[0038] It can be further understood that the vehicle high pressure system includes: AC / DC rectifier module 101, multi-in-one controller 102, main drive permanent magnet synchronous motor 103, auxiliary drive motor 104.Among them, AC / DC rectifier module 101 includes: current voltage protection device, rectifier and low-voltage communication control unit.AC / DC rectifier module 101 is mainly realized alternating current mains conversion into direct current, and is connected to multi-in-one controller 102 by high-voltage cable.Multi-in-one controller 102 includes: pre-charging unit, main drive DC / AC (direct current to alternating current) inverter unit, PDU (power supply) distribution unit and low-voltage communication control unit, and the input direct current is converted into controlled three-phase alternating current by multi-in-one controller 102, and alternating current input main drive permanent magnet synchronous motor 103, and main drive permanent magnet synchronous motor 103 connects variator to provide power for vehicle, and alternating current input auxiliary drive motor 104, and auxiliary drive motor 104 connects original vehicle engine 105 rear end drive component by chain drive.Engine 105 rear end drive component includes: generator, fan 106, brake air pump 107 and air conditioner compressor 108.

[0039] In some embodiments of the utility model, the AC / DC rectifier module 101 includes:

[0040] Voltage protection device is used to limit current when rectifying low-voltage alternating current.

[0041] It can be understood that the AC / DC rectifier module 101 includes: voltage protection device, which can play a safety protection role when current and voltage are too large in work.

[0042] In some embodiments of the utility model, the AC / DC rectifier module 101 further includes:

[0043] Rectifier, for rectifying low-voltage alternating current to obtain high-voltage direct current.

[0044] It can be understood that the rectifier can rectify 380V alternating city power into 540V direct current.

[0045] In some embodiments of the utility model, the AC / DC rectification module 101 further comprises:

[0046] The low-voltage communication control unit is electrically connected with the all-in-one controller 102 and is used for controlling the AC / DC rectification model to be powered off.

[0047] It can be understood that the low-voltage communication control unit communicates with the internal low-voltage communication control unit of the all-in-one controller 102, and remote distance detection and vehicle end control of the construction machinery AC / DC rectification equipment power off can be realized.

[0048] In some embodiments of the utility model, the all-in-one controller 102 comprises:

[0049] The pre-charging unit is electrically connected with the AC / DC rectification module and is used for receiving high-voltage direct current.

[0050] It can be understood that the pre-charging power supply is used for receiving direct current input, and when the capacitor is not fully charged and is in the conduction state, the pre-charging unit can reduce the current in the circuit and play a safety protection role.

[0051] In some embodiments of the utility model, the all-in-one controller 102 further comprises:

[0052] The DC / AC inversion unit is electrically connected with the pre-charging unit and is used for obtaining three-phase alternating current based on high-voltage direct current.

[0053] It can be understood that the DC / AC inversion unit controls the output three-phase voltage according to the motor operation requirement, obtains the driver input operation instruction, controls the main drive permanent magnet synchronous motor 103 speed by controlling the output three-phase frequency.

[0054] In some embodiments of the utility model, the all-in-one controller 102 further comprises:

[0055] The PDU power distribution unit is electrically connected with the DC / AC inversion unit, the permanent magnet synchronous motor 103 and the drive motor 104, and is used for transmitting three-phase alternating current to the permanent magnet synchronous motor 103 and the drive motor 104 respectively.

[0056] It can be understood that the PDU power distribution unit is electrically connected with the DC / AC inversion unit, the permanent magnet synchronous motor 103 and the drive motor 104, and is used for transmitting three-phase alternating current to the permanent magnet synchronous motor 103 and the drive motor 104 respectively.

[0057] In some embodiments of the utility model, the all-in-one controller 102 further comprises:

[0058] The low-voltage communication control unit is electrically connected with the low-voltage communication control unit of the AC / DC conversion module.

[0059] It can be understood that the low-voltage communication control unit of the all-in-one controller 102 can send motor electric control related information to the display and receive electric signals of the driver related operation instructions to realize corresponding control.

[0060] In some embodiments of the utility model, the system further comprises:

[0061] The torque converter is electrically connected with the permanent magnet synchronous motor 103 and is used for providing power for the vehicle.

[0062] It can be understood that the torque converter is electrically connected with the permanent magnet synchronous motor 103 and is used for providing power for the vehicle.

[0063] In some embodiments of the utility model, the driving motor 104 is mechanically connected with the engine 105, the fan 106, the air pump 107 and the air conditioner compressor 108, and comprises:

[0064] The driving motor 104 is mechanically connected with the generator, the fan 106, the air pump 107 and the air conditioner compressor 108 in a chain transmission mode.

[0065] It can be understood that the driving motor 104 is mechanically connected with the generator, the fan 106, the air pump 107 and the air conditioner compressor 108 in a chain transmission mode.

[0066] The above is only the preferred specific implementation mode of the utility model, but the protection scope of the utility model is not limited to this, any person skilled in the art can easily think of the change or replacement within the technical range disclosed by the utility model, and all should be covered in the protection scope of the utility model.

Claims

1. A vehicle high-pressure system, characterized by, The system comprises: An AC / DC rectification module configured to obtain low-voltage alternating current input and rectify the low-voltage alternating current to obtain high-voltage direct current; A multi-in-one controller electrically connected to the AC / DC rectification module and configured to obtain three-phase alternating current based on the high-voltage direct current; A permanent magnet synchronous motor electrically connected to the multi-in-one controller and configured to receive the three-phase alternating current and provide power for a vehicle; A drive motor electrically connected to the multi-in-one controller and mechanically connected to an engine, a fan, a pump and an air conditioner compressor, and configured to receive the three-phase alternating current and drive the generator, the fan, the pump and the air conditioner compressor to work.

2. The vehicle high-pressure system according to claim 1, characterized by, The AC / DC rectification module comprises: A voltage protection device configured to limit current when rectifying the low-voltage alternating current.

3. The vehicle high-pressure system according to claim 2, characterized by The AC / DC rectification module further comprises: A rectifier configured to rectify the low-voltage alternating current to obtain the high-voltage direct current.

4. The vehicle high-pressure system according to claim 3, characterized by The AC / DC rectification module further comprises: A low-voltage communication control unit electrically connected to the multi-in-one controller and configured to control the AC / DC rectification module to be powered off.

5. The vehicle high pressure system of claim 1, wherein, The multi-in-one controller comprises: A pre-charging unit electrically connected to the AC / DC rectification module and configured to receive the high-voltage direct current.

6. The vehicle high-pressure system of claim 5, wherein The multi-in-one controller further comprises: A DC / AC inversion unit electrically connected to the pre-charging unit and configured to obtain the three-phase alternating current based on the high-voltage direct current.

7. The vehicle high-pressure system according to claim 6, characterized by The multi-in-one controller further comprises: A PDU power distribution unit electrically connected to the DC / AC inversion unit, the permanent magnet synchronous motor and the drive motor, and configured to transmit the three-phase alternating current to the permanent magnet synchronous motor and the drive motor respectively.

8. The vehicle high-pressure system according to claim 4 or 7, characterized by The multi-in-one controller further comprises: A low-voltage communication control unit electrically connected to the low-voltage communication control unit of the AC / DC conversion module.

9. The vehicle high pressure system of claim 1, wherein, The system further comprises: A torque converter electrically connected to the permanent magnet synchronous motor and configured to provide power for the vehicle.

10. The vehicle high pressure system of claim 1, wherein, The drive motor mechanically connected to the engine, the fan, the pump and the air conditioner compressor comprises: A drive motor mechanically connected to the generator, the fan, the pump and the air conditioner compressor in a chain transmission manner.

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