Electric fan safety protection device

A safety protection device and electric fan technology, applied in pump control, non-variable pumps, machines/engines, etc., can solve problems such as accidental injuries, inability to speed up and decelerate, etc.

Inactive Publication Date: 2014-11-26
KUNDA COMP TECHKUSN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Although the Chinese mainland patent application No. 201010520541.9 can immediately power off the fan, the fan blade will continue to rotate at a high speed due to inertia, and cannot accelerate and decelerate, which may still cause accidental injury

Method used

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Embodiment Construction

[0014] see figure 1 , figure 2 and image 3 As shown, the present invention provides an electric fan safety protection device, which is installed on an electric fan 10, and the electric fan 10 includes a mesh cover 11 and fan blades 12; and the electric fan safety protection device includes a proximity sensor 20. A rotational speed sensor 30 , a processing module 40 and a driving module 50 , the proximity sensor 20 is fixed on the net cover 11 and is used to sense whether there is a human body 300 in the dangerous range; the rotational speed sensor 30 is fixed on the fan blade 12 And to sense the rotational speed of the fan blade 12; the processing module 40 is connected to the proximity sensor 20 and the rotational speed sensor 30, and the processing module 40 issues a control according to the sensing result of the proximity sensor 20 and the sensing result of the rotational speed sensor 30 Signal; the driving module 50 is connected to the processing module 40, and the dri...

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PUM

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Abstract

The invention provides an electric fan safety protection device. The electric fan safety protection device is arranged on an electric fan, and the electric fan comprises a mesh enclosure and fan blades. The electric fan safety protection device comprises a short-distance sensor, a rotating speed sensor, a processing module and a driving module, the short-distance sensor is fixed to the mesh enclosure and is used for sensing whether a human body exists within the dangerous range or not, the rotating speed sensor is fixed to one fan blade and is used for sensing the rotating speed of the fan blades, the processing module is connected with the short-distance sensor and the rotating speed sensor, and the processing module sends out a control signal according to a sensing result of the short-distance sensor and the sensing result of the rotating speed sensor. The driving module is connected with the processing module, and the driving module controls the deceleration of the fan blades according to the control signal. The electric fan safety protection device controls the deceleration of the fan blades according to the driving module, and under the dangerous condition, the deceleration of the fan blades can be accelerated, and therefore accidental injuries can be avoided.

Description

【Technical field】 [0001] The invention relates to an electric fan safety protection device, in particular to an electric fan safety protection device capable of controlling deceleration. 【Background technique】 [0002] The electric fan is referred to as an electric fan, called a fan in Hong Kong, and a fan in Japan and Korea. It is a household appliance that uses a motor to drive the fan blades to rotate to accelerate the circulation of air. Widely used in homes, offices, shops, hospitals and hotels and other places. The electric fan is mainly composed of fan head, fan blade, net cover and control device and other components. The fan head includes a motor, front and rear end covers, and an oscillating air supply mechanism. The existing electric fan not only has timing, wind type and wind speed control, but also has a touch power-off protection function. For example, Chinese mainland patent application No. 201010520541.9 discloses a safety protection circuit for an electri...

Claims

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Application Information

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IPC IPC(8): F04D27/00
Inventor 许世法
Owner KUNDA COMP TECHKUSN
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