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Interference extrusion and rigid fixation combined piezoelectric fan

A piezoelectric fan, rigidly fixed technology, applied to the components of pumping devices for elastic fluids, piezoelectric effect/electrostrictive or magnetostrictive motors, electrical components, etc., can solve changes, blade softening degree Different, abnormal blade swing, etc.

Active Publication Date: 2021-09-24
CHENGDU HUITONG WEST ELECTRONIC CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Whether the fixed end of the cantilever beam piezoelectric fan blade is fixed by the bonding process or the fastener is used, there is a problem that the piezoelectric fan works in a special environment of high temperature and vibration, and the softening of the adhesive and the loosening of the fastener affect the resonance of the blade. frequency change problem
The fixed end of the piezoelectric fan blade is loose, and the blade is not rigidly fixed, which will cause the blade to swing abnormally, and the softening degree of each blade is different, the blade swing frequency is inconsistent, and multiple blades interfere with each other, which eventually leads to early failure of the piezoelectric fan , cannot meet the needs

Method used

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  • Interference extrusion and rigid fixation combined piezoelectric fan
  • Interference extrusion and rigid fixation combined piezoelectric fan

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Embodiment Construction

[0021] In order to make the purpose, technical solution and advantages of the present application clearer, the present application will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present application, not to limit the present application.

[0022] On the contrary, this application covers any alternatives, modifications, equivalent methods and schemes within the spirit and scope of this application as defined by the claims. Further, in order to make the public have a better understanding of the application, some specific details are described in detail in the detailed description of the application below. The present application can be fully understood by those skilled in the art without the description of these detailed parts.

[0023] figure 1 It is a front view of an interference extrusion and rigid fixed combined piezoel...

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Abstract

The invention discloses an interference extrusion and rigid fixation combined piezoelectric fan. The fan comprises piezoelectric fan blades, blade clamping seats, a fan base and an embedded intelligent driving circuit; the piezoelectric fan blades are of cantilever beam structures, the bottom ends of the piezoelectric fan blades are cantilever beam fixing ends, and the top ends of the piezoelectric fan blades are cantilever beam free end; and the bottom ends of the piezoelectric fan blades are fixed to the blade clamping seats, the blade clamping seats are extruded on the fan base in an interference mode, and the embedded intelligent piezoelectric fan driving circuit is embedded into the piezoelectric fan base and used for driving the piezoelectric fan blades to vibrate. The combined piezoelectric fan can stably work in a good state with high reliability for a long time in a severe environment, has no electromagnetic interference on electronic equipment needing heat dissipation, and meets the requirements.

Description

technical field [0001] The invention relates to the technical field of piezoelectric fans, in particular to a combined piezoelectric fan with interference extrusion and rigid fixation. Background technique [0002] The basic principle of piezoelectric fans is to use the piezoelectric characteristics of piezoelectric ceramics to convert mechanical energy into electrical energy, which is usually called the positive piezoelectric effect of piezoelectric ceramics; on the contrary, the conversion of electrical energy into mechanical energy is called the inverse piezoelectric effect of piezoelectric ceramics. . The piezoelectric fan is designed by using the working principle of the piezoelectric ceramic inverse piezoelectric effect. [0003] Piezoelectric fan blades made of cantilever beam structure, cantilever beam blades are divided into two parts: free end and fixed end. At present, the fixed end of piezoelectric fan blades is almost always fixed by adhesive bonding technology...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04D25/08F04D29/00F04D33/00H02N2/00
CPCF04D25/08F04D29/002F04D33/00H02N2/00Y02E10/72
Inventor 张博
Owner CHENGDU HUITONG WEST ELECTRONIC CO LTD
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