Automobile cooling fan blade with noise reduction and energy saving functions
A technology for cooling fans and blades, which is used in the cooling of electric vehicles, vehicle components, and engines to reduce vibration and noise, improve comfort, and reduce frictional resistance.
Inactive Publication Date: 2019-06-21
JIANGSU UNIVERSITY OF TECHNOLOGY
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Problems solved by technology
[0003] Aiming at the problems of vibration, noise and energy consumption caused by automobile fans, this invention uses dragonflies as bionic objects to propose a design for automobile fan blades with noise reduction and energy saving effects
Method used
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Embodiment
[0019] Such as Figure 2-4 As shown, a cooling fan blade with noise reduction and energy saving for automobiles includes a blade body 1 and a balance weight 3 arranged on the blade body. Uneven folds; the balance weight 3 is rectangular, and the four sides of the balance weight 3 are fixed on the surface of the blade body by the spring 2; the two ends of the spring are equipped with piezoelectric materials 4, and the piezoelectric materials 4 are respectively pasted on the blade body 1 And the surface of balance weight 3. The piezoelectric material 4 converts the vibration energy generated during the rotation of the fan into electrical energy, and stores the electrical energy in the storage battery through the rectification circuit.
[0020] exist figure 2 The direction of air flow in the middle is from left to right. When the fan rotates, the groove is filled with standing waves, making its aerodynamic performance better than that of smooth fan blades. Adding a balance bl...
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The invention relates to an automobile cooling fan blade with noise reduction and energy saving functions. The automobile cooling fan blade comprises a blade body and a balance block arranged on the blade body, the cross section of the blade body is in a sawtooth shape, and the upper and lower surfaces of the blade body are covered with uneven wrinkles in dragonfly wing bionic shapes. The balanceblock is fixed on the surface of the blade body through a spring; piezoelectric materials are additionally installed at the two ends of the spring, and the piezoelectric materials are adhered to the surfaces of the blade body and the balance block. According to the automobile cooling fan blade, the wrinkles of the cross sections of dragonfly wings are analyzed, the sawtooth-shaped cross section shape is applied to the air conditioner fan blade, the frictional resistance on the fan blade is better reduced, meanwhile, the spring and the balance block are mounted on the fan blade, and the springand the balance block are utilized for vibration damping and vibration absorption, so that vibration and noise generated during operation of the fan blade are reduced, and the driving comfort is improved. By means of a damping device, the piezoelectric materials can be used for recycling vibration energy in the fan blade rotation process, the vibration energy is converted into electric energy, andthe energy saving and emission reduction effects are achieved.
Description
technical field [0001] The invention belongs to an automobile fan blade, in particular to an automobile cooling fan blade with noise reduction and energy saving. Background technique [0002] With the development of science and technology, people's requirements for performance and comfort are getting higher and higher. NVH has also become the focus of attention of various manufacturers, and higher requirements are put forward for the NVH of each component. Automotive NVH refers to Noise, Vibration and Harshness. Noise and vibration are often linked together. Acoustic roughness refers to the quality of noise and vibration, and refers to the human body's subjective perception of vibration and noise. The main function of automotive air conditioners is to adjust the thermal environment in the cockpit and improve the thermal comfort of the occupants. However, the noise of the automotive air conditioner and the low efficiency of the air conditioner greatly reduce the comfort of...
Claims
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Login to View More IPC IPC(8): F04D29/26F04D29/66H02J7/32H02N2/18F01P5/02
Inventor 郑焱李紫娟张丹贝绍轶张兰春杨艺李波李丽马梦琪张凯清
Owner JIANGSU UNIVERSITY OF TECHNOLOGY