CN214381897U

CN214381897U - All-in-one accessory controller of electric vehicle

Info

Publication number: CN214381897U
Application number: CN202022816775.XU
Authority: CN
Inventors: 陈展鹏
Original assignee: Nanjing Rongpu Yida Power Technology Co ltd
Current assignee: Nanjing Rongpu Yida Power Technology Co ltd
Priority date: 2020-11-30
Filing date: 2020-11-30
Publication date: 2021-10-08
Anticipated expiration: 2030-11-30

Abstract

The utility model discloses an electric motor car unification auxiliary controller more, the power battery of electric motor car is all inserted to high-pressure distribution unit, oil pump DC AC module, air pump DC AC module and battery DC module, and the battery in the electric motor car provides the normal electricity for oil pump DC AC module, air pump DC AC module and battery DC module, carries out the network communication through the CAN bus between oil pump DC AC module, air pump DC AC module and the battery DC module. The utility model discloses a centralized power distribution scheme, structural design is compact, and the wiring overall arrangement is convenient, overhauls convenient and fast. The whole all-in-one controller adopts the opening module with excellent heat dissipation and vibration resistance, has higher safety and sealing waterproof grade, and also has greater advantages in service life, power consumption, volume and weight. The convex cylinder is added on the heat dissipation plate, so that the contact area between water flow and the shell is effectively increased, and the heat dissipation effect is obviously improved.

Description

All-in-one accessory controller of electric vehicle

The technical field is as follows:

the utility model relates to an electric motor car unification auxiliary controller more.

Background art:

environmental protection and energy conservation are the problems which need to be faced in the twenty-first century all over the world, the basic national policy for building a conservation-oriented society and the industrial development policy for encouraging the development of small-displacement energy-saving automobiles are also put forward in China, and the electric vehicle is one of the important means for realizing the goal. The all-in-one electric vehicle is taken as an important component of the electric vehicle and plays an indispensable role in the whole vehicle operation process.

The all-in-one system generally comprises a main motor controller, a steering DC/AC controller, an inflating DC/AC controller, a DC/DC and high-voltage distribution box and other auxiliary controllers. There are two general solutions available in the car factory at present: the other is that the main driver is separated from each accessory controller.

The patent designs to the electric motor car auxiliary controller that unifies more. Compare discrete combination controller, the integration controller outward appearance that unifies more is clean and tidy, can reduce the total volume of controller to save the space of whole car, be favorable to the car to lightweight, miniaturized development. Meanwhile, the integrated all-in-one controller reduces external wiring among discrete controllers, reduces fault points, saves cost, improves product reliability, and is the development direction of new energy electric vehicles in the future.

The invention content is as follows:

the utility model provides an all-in-one accessory controller of an electric vehicle, which aims to solve the problems in the prior art.

The utility model discloses the technical scheme who adopts has: the utility model provides an electric motor car auxiliary controller that unifies more, includes casing and the high-pressure distribution unit, oil pump DC AC module, air pump DC AC module and the battery DC module of integration in the casing, high-pressure distribution unit, oil pump DC AC module, air pump DC AC module and battery DC module all insert the power battery of electric motor car, and the battery in the electric motor car provides the normal electricity for oil pump DC AC module, air pump DC AC module and battery DC module, carries out network communication through the CAN bus between oil pump DC AC module, air pump DC AC module and the battery DC module.

Furthermore, the high-voltage power distribution unit comprises a defrosting relay, an air conditioner relay, a motor controller and a pre-charging contactor, wherein the defrosting relay, the air conditioner relay and the motor controller are all connected into a power battery of the electric vehicle, and the pre-charging contactor is connected in parallel with a positive terminal of the motor controller.

Further, the positive pole of the oil pump DC/AC module and the positive pole of the air pump DC/AC module are both merged into the positive pole of the motor controller.

Furthermore, a heat dissipation plate is arranged on the outer wall of the shell, a cooling flow channel is arranged on the heat dissipation plate, a plurality of salient points are uniformly distributed on the inner wall of the cooling flow channel, and sealing ring fixing grooves are formed in the periphery of the cooling flow channel.

Further, the salient points are cylindrical.

The utility model discloses following beneficial effect has:

the utility model discloses a centralized power distribution scheme, structural design is compact, and the wiring overall arrangement is convenient, overhauls convenient and fast. The whole all-in-one controller adopts the opening module with excellent heat dissipation and vibration resistance, has higher safety and sealing waterproof grade, and also has greater advantages in service life, power consumption, volume and weight. The convex cylinder is added on the heat dissipation plate, so that the contact area between water flow and the shell is effectively increased, and the heat dissipation effect is obviously improved.

Description of the drawings:

fig. 1 is a structural diagram of the present invention.

FIG. 2 is a wiring structure diagram of the present invention in an automobile;

in fig. 2: CANH and CANL are CAN network structures of the whole vehicle part.

Fig. 3 is a structural view of the heat dissipating plate connected to the housing according to the present invention.

The specific implementation mode is as follows:

the present invention will be further described with reference to the accompanying drawings.

As fig. 1 to 3, the utility model relates to an electric motor car all-in-one auxiliary controller, including casing 5 and the high-voltage distribution unit 1 of integration in casing 5, oil pump DC AC module 2, air pump DC AC module 3 and battery DC module 4, high-voltage distribution unit 1, oil pump DC AC module 2, air pump DC AC module 3 and battery DC module 4 all insert the power battery 6 of electric motor car, battery 7 in the electric motor car is oil pump DC AC module 2, air pump DC AC module 3 and battery DC module 4 provide the normal electricity, carry out network communication through the CAN bus between oil pump DC AC module 2, air pump DC AC module 3 and the battery DC module 4. The oil pump DC/AC module 2 is connected with an oil pump motor 20 in the automobile, and the air pump DC/AC module 3 is connected with an air pump motor 30 in the automobile.

The high-voltage power distribution unit 1 comprises a defrosting relay 11, an air-conditioning relay 12, a motor controller 13 and a pre-charging contactor 14, wherein the defrosting relay 11, the air-conditioning relay 12 and the motor controller 13 are all connected into a power battery of the electric vehicle, and the pre-charging contactor 14 is connected in parallel with a positive terminal of the motor controller 13.

The positive pole of the oil pump DC/AC module 2 and the positive pole of the air pump DC/AC module 3 are both incorporated into the positive pole of the motor controller 13.

The cooling mode that the utility model discloses controller adopted is water-cooling. The heat dissipation plate 50 is arranged on the outer wall of the shell 5, the cooling flow channel 51 is arranged on the heat dissipation plate 50, the plurality of cylindrical salient points 52 are uniformly distributed on the inner wall of the cooling flow channel 51, and the sealing ring fixing grooves 53 are arranged on the periphery of the cooling flow channel 51, so that the sealing performance of the heat dissipation plate can be effectively improved.

The cylindrical salient points are uniformly distributed in the cooling flow channel, so that the contact area of the cooling plate and water flow is increased, and the cooling effect is improved.

The utility model discloses add pre-charge contactor 14, pre-charge the bus capacitor in with the pre-charge contactor through the pre-charge return circuit of pre-charge contactor 14 and pre-charge, voltage when the main circuit switch-on is steerable in safe within range, ensures system normal operating.

The positive pole of the oil pump DC/AC module 2 and the positive pole of the air pump DC/AC module 3 are both merged into the positive pole of the motor controller 13, and when the motor controller carries out pre-charging, the oil pump DC/AC module and the air pump DC/AC module also carry out pre-charging simultaneously, so that the safety of the whole vehicle can be improved.

Through each DCDC of CAN line control and DCAC module, reduce hard line control greatly reduced the fault point, also made things convenient for the inspection maintenance in whole car later stage through the CAN line, also be favorable to whole car to lightweight, integrate the development.

The utility model discloses controller wiring principle is clear, the demand of all kinds of electric motor cars of satisfying that can be fine. The electric vehicle all-in-one accessory controller integrates an oil pump DCAC, an air pump DCAC, a DCDC, high-voltage power distribution and the like, associates all important parts of the whole vehicle through a CAN bus, and controls the on-off of all contactors in the all-in-one controller through a VCU (virtual control Unit) to realize the control of corresponding accessories. When the whole vehicle is powered on, the motor controller is pre-charged through the pre-charging loop, the control module high-voltage input of the oil pump and air pump is placed at the rear end of the main positive relay, and when the motor controller is pre-charged, the oil pump DCAC and the air pump DCAC are pre-charged at the same time, so that the adverse consequences of damage of the control module, ablation of a contact of a contactor and the like caused by instant impact of large current on each module in the charging process are prevented.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications can be made without departing from the principle of the present invention, and these modifications should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides an electric motor car unification auxiliary controller more which characterized in that: the high-voltage distribution unit (1), the oil pump DC/AC module (2), the air pump DC/AC module (3) and the battery DC/DC module (4) are integrated in the shell (5), the high-voltage distribution unit (1), the oil pump DC/AC module (2), the air pump DC/AC module (3) and the battery DC/DC module (4) are all connected into a power battery of the electric vehicle, a storage battery in the electric vehicle provides normal power for the oil pump DC/AC module (2), the air pump DC/AC module (3) and the battery DC/DC module (4), and the oil pump DC/AC module (2), the air pump DC/AC module (3) and the battery DC/DC module (4) are in network communication through a CAN bus.

2. The all-in-one accessory controller for electric vehicles according to claim 1, wherein: high voltage distribution unit (1) is including defrosting relay (11), air conditioning relay (12), motor controller (13) and pre-charge contactor (14), the power battery of electric motor car is all inserted in defrosting relay (11), air conditioning relay (12) and motor controller (13), and pre-charge contactor (14) connect in parallel at the anodal wiring end of motor controller (13).

3. The all-in-one accessory controller for electric vehicles according to claim 2, wherein: and the positive electrode of the oil pump DC/AC module (2) and the positive electrode of the air pump DC/AC module (3) are both merged into the positive electrode of the motor controller (13).

4. The all-in-one accessory controller for electric vehicles according to claim 1, wherein: the heat dissipation structure is characterized in that a heat dissipation plate (50) is arranged on the outer wall of the shell (5), a cooling flow channel (51) is arranged on the heat dissipation plate (50), a plurality of salient points (52) are uniformly distributed on the inner wall of the cooling flow channel (51), and sealing ring fixing grooves (53) are formed in the periphery of the cooling flow channel (51).

5. The all-in-one accessory controller for electric vehicles according to claim 4, wherein: the salient points (52) are cylindrical.