Hybrid squirrel cage energy collection device

An energy harvesting and hybrid technology, applied in electromechanical devices, casings/covers/supports, electrical components, etc., can solve the problems of different use environments of energy harvesting technologies, and achieve excellent energy harvesting performance, excellent output performance, and reduce The effect of stress concentration

Inactive Publication Date: 2022-01-28
TSINGHUA UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] However, depending on the working mechanism, the three different energy harvesting technologies are used in different environments

Method used

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  • Hybrid squirrel cage energy collection device
  • Hybrid squirrel cage energy collection device

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Embodiment Construction

[0027] In the following description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of one or more embodiments. It may be evident, however, that these embodiments may be practiced without these specific details. In other instances, well-known structures and devices are shown in block diagram form in order to facilitate describing one or more embodiments.

[0028] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" etc. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, or in a specific orientation. construction and o...

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Abstract

The invention provides a hybrid squirrel cage energy collection device. The device comprises a squirrel cage fixing end connected with an external rotor, a squirrel cage bearing end and a detachable cage bar assembly connected between the squirrel cage fixing end and the squirrel cage bearing end; the squirrel cage fixing end, the squirrel cage bearing end and the detachable cage bar assembly jointly form a squirrel cage structure; a piezoelectric energy collection assembly is arranged on the detachable cage bar assembly; and a triboelectric energy collection assembly is connected to the squirrel cage bearing end. The hybrid squirrel cage energy collection device provided by the invention is resistant to impact, so that elastic support of a rotor system can be realized, and the working state of the rotor cannot be influenced; useless and even harmful vibration energy in the rotor can be converted into electric energy, the rotating speed of the rotor cannot be affected, and meanwhile the vibration response of the rotor can be reduced; and moreover, the output voltage of the hybrid squirrel cage energy collection device can represent the working state of the rotor system, and the hybrid squirrel cage energy collection device has the function of monitoring the state of the rotor system.

Description

technical field [0001] The invention relates to the technical field of energy collection, and more specifically, to a hybrid squirrel cage energy collection device. Background technique [0002] The squirrel cage structure is usually used for the elastic support of the rotor system, and is widely used in various aeroengines. The resonance frequency of the aeroengine rotor system can be effectively adjusted through the squirrel cage structure to achieve the effect of vibration reduction. [0003] However, in actual use, the squirrel cage structure often has fatigue cracks or even cage bar breakage due to excessive vibration or stress concentration. Therefore, reducing the vibration of the squirrel cage structure is very important to improve the service life of the squirrel cage. The existing solution is to use vibration energy harvesting technology to convert the vibration energy into electrical energy, thereby reducing the vibration amplitude, and the electrical energy can ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02N2/18H02N1/04H02K5/24H02K17/16H02K17/30
CPCH02N2/186H02N1/04H02K5/24H02K17/16H02K17/30
Inventor 秦朝烨张刘锋王俊褚福磊
Owner TSINGHUA UNIV
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