A new energy vehicle radiator fan assembly capable of forward and reverse rotation

Abstract

The utility model discloses a new energy vehicle radiator fan assembly of forward and reverse, including the wind cover, the wind cover can be oblique installation on the outside whole car, including the brushless motor of forward and reverse, the brushless motor is fixed on the one side of wind cover oblique, including the fan blade, the fan blade is fixed on the brushless motor, can with brushless motor forward or reverse, including the cooling module, the cooling module is installed above the fan blade, and is connected with wind cover fixedly. Can realize fan forward and reverse all can have the air volume, when fan forward can give the wind cover oblique rear module heat dissipation, reverse realizes the air volume to the oblique front and blows the air volume, can remove the dust and other sundries on the cooling module.

Description

Technical Field

[0001] This utility model relates to parts for new energy vehicles, specifically to a radiator fan assembly that can rotate in both directions. Background Technology

[0002] With the development of new energy vehicles, vehicles have shifted from being driven by internal combustion engines to electric motors, and power has changed from engines to batteries. Since there is no engine in the front compartment, the space can be freed up, making it possible to design a front trunk. Now, the front trunk has evolved to double as a front seat. To achieve this function, the fan needs to be angled within the front compartment, with one side of the cooling module facing upwards. This makes the cooling module particularly prone to dust accumulation, affecting heat dissipation. Simultaneously, the condensate on the condenser is prone to freezing. Utility Model Content

[0003] To address the problems existing in the prior art, this utility model provides a radiator fan assembly that can rotate in both directions, enabling airflow in both directions. When the fan rotates forward, it can dissipate heat to the module diagonally behind the shroud, while in reverse, it blows airflow diagonally forward, removing dust and other debris from the cooling module. When the vehicle issues a cleaning reverse function request, the motor recognizes this special frequency signal and rotates in the opposite direction. Two turbulence design structures (guide plates) are added to the shroud fan ring to ensure a comfortable airflow in both forward and reverse directions, avoiding fan blade noise.

[0004] The technical solution of this utility model is: a radiator fan assembly for new energy vehicles that can rotate in both directions, including a wind shield, which can be installed at an angle on the exterior of the vehicle.

[0005] Includes a brushless motor capable of forward and reverse rotation, the brushless motor being fixed to the upward-sloping side of the wind shield;

[0006] Includes a fan blade, which is fixed to the brushless motor and can rotate forward or in reverse with the brushless motor;

[0007] It includes a cooling module, which is installed above the fan blades and fixedly connected to the wind shield.

[0008] Furthermore, the wind shield has 11 wind shield reinforcing ribs on its downward-sloping side, a first guide plate is provided between the two wind shield reinforcing ribs at the lower left position of the wind shield, and a second guide plate is provided between the two wind shield reinforcing ribs at the upper right position of the wind shield.

[0009] Furthermore, the first guide vane is inclined inward at 89.5° along the axial direction, and the second guide vane is inclined inward at 89.5° along the axial direction.

[0010] Furthermore, multiple fixed supports are symmetrically arranged on both sides of the wind shield.

[0011] A control method for a reversible radiator fan in a new energy vehicle is disclosed. The brushless motor can reverse direction by receiving different frequencies. When it receives a reversing frequency, the brushless motor recognizes the vehicle's signal and reverses direction. The airflow during reversal is at least 60% of the forward airflow, providing sufficient airflow for dust removal.

[0012] The beneficial effects of this utility model are: it provides a radiator fan assembly capable of forward and reverse rotation, incorporating two guide vane structures in the fan shroud. One guide vane is located on the upper right of the fan shroud, tilted inward at 89.5°. The other guide vane is located on the lower left of the fan shroud, also tilted inward at 89.5°. This design has been verified to effectively reduce fan noise by 9 orders without affecting airflow. The fan blades exhibit 60% of the performance of forward rotation in reverse rotation, achieving a dust removal effect. Simultaneously, the motor uses PWM at different frequencies to identify forward and reverse commands, enabling the motor to rotate in both directions. Practical verification shows that reverse rotation effectively removes dust from the surface of the radiator core and also enables outdoor air conditioning functionality. Attached Figure Description

[0013] Figure 1 For the cooling module assembly;

[0014] Figure 2 This is an exploded view of the radiator fan assembly;

[0015] Figure 3 This is a schematic diagram of the wind shield;

[0016] In the diagram: 1 is the cooling module; 2 is the fan blade; 3 is the brushless motor; 4 is the air shield; 5 is the mounting bracket; 6 is the first guide plate; 7 is the second guide plate. Detailed Implementation

[0017] The present invention will be further described below with reference to the accompanying drawings.

[0018] like Figure 1-3 As shown, a reversible radiator fan assembly for new energy vehicles includes a cooling module 1, fan blades 2, a brushless motor 3, and a wind shield 4. The wind shield 4 can be installed at an angle on the exterior of the vehicle. The reversible brushless motor 3 is fixed to the upward-facing side of the wind shield 4. The fan blades 2 are fixed to the brushless motor 3 and can rotate forward or backward with the brushless motor 3. The cooling module 1 is installed above the fan blades 2 and is fixedly connected to the wind shield 4. Multiple fixing brackets 5 are symmetrically arranged on both sides of the wind shield 4.

[0019] The wind shield 4 has 11 reinforcing ribs on its downward-sloping side. A first guide plate 6 is positioned between two reinforcing ribs at the lower left of the wind shield, and a second guide plate 7 is positioned between two reinforcing ribs at the upper right of the wind shield. The first guide plate 6 and the second guide plate 7 are both inclined inward at 89.5°. This design has been verified to effectively reduce fan noise by 9 orders without affecting airflow.

[0020] The cooling module assembly is sealed with a plastic air deflector, making it difficult to clean dust from its surface using traditional car washing methods. Furthermore, new energy vehicles often require the fan to be angled upwards to accommodate the front trunk, leading to dust accumulation on the upward-facing cooling module. This design has been proven to effectively address this issue without compromising fan performance. By reversing the fan's direction, air is blown towards the cooling module, removing condensation and dust. When camping, the fan's reversal directs cool air from the front of the vehicle, thus providing both self-cleaning and comfortable air conditioning functionality.

[0021] The fan blades, when rotating in reverse, have 60% of the performance of forward rotation, achieving a dust removal effect during reverse rotation. Simultaneously, the motor uses PWM at different frequencies to identify forward and reverse rotation commands, enabling the motor to rotate in both directions. Practical verification shows that reverse rotation effectively removes dust from the surface of the radiator core, while also providing outdoor air conditioning functionality.

[0022] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A radiator fan assembly for new energy vehicles capable of reversing direction, characterized in that: Includes a wind shield (4), which can be tilted and installed on the exterior of the vehicle; Includes a brushless motor (3) capable of forward and reverse rotation, the brushless motor (3) being fixed to the upward-sloping side of the wind shield (4); Includes a fan blade (2), which is fixed on the brushless motor (3) and can rotate forward or backward with the brushless motor (3); It includes a cooling module (1), which is installed above the fan blade (2) and fixedly connected to the wind shield (4).

2. The reversible radiator fan assembly for new energy vehicles according to claim 1, characterized in that: The wind shield (4) has 11 wind shield reinforcing ribs on its downward-sloping side. A first guide plate (6) is set between the two wind shield reinforcing ribs at the lower left position of the wind shield, and a second guide plate (7) is set between the two wind shield reinforcing ribs at the upper right position of the wind shield.

3. A reversible radiator fan assembly for new energy vehicles according to claim 2, characterized in that: The first guide plate (6) is inclined inward at 89.5° along the axial direction, and the second guide plate (7) is inclined inward at 89.5° along the axial direction.

4. A reversible radiator fan assembly for new energy vehicles according to claim 1, characterized in that: Multiple fixed supports (5) are symmetrically arranged on both sides of the wind shield (4).

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