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A fan

一种风扇组件、喷嘴的技术，应用在用于弹性流体的泵送装置的部件、非变容式泵、泵装置等方向，能够解决部件难清洁、部件向外突出等问题

Inactive Publication Date: 2010-03-31
DYSON TECH LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Additionally, it is undesirable for appliances to have parts that protrude outward, both for safety reasons and because these parts are difficult to clean

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0030] figure 1 An example of fan assembly 100 is shown viewed from the front of the device. The fan assembly 100 comprises an annular nozzle 1 defining a central opening 2 . see figure 2 with 3 , the nozzle 1 includes an internal passage 10 , a mouth 12 and a Coanda surface 14 adjacent to the mouth 12 . The Coanda surface 14 is arranged such that the primary airflow exiting the mouth 12 and passing the Coanda surface 14 is amplified by the Coanda effect. The nozzle 1 is connected to and supported by a base 16 which has a housing 18 . Base 16 includes a plurality of selection buttons 20 that are accessible through housing 18 and through which fan assembly 100 may be operated. A fan assembly has a height H, a width W and a depth D, such as figure 1 with 3 shown. The nozzles 1 are arranged to extend substantially orthogonally with respect to the X-axis. The height H of the fan assembly is perpendicular to the axis X and extends from the end of the base 16 remote from t...

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PUM

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Abstract

A bladeless fan assembly (100) for creating an air current comprises a nozzle (1) mounted on a base (16) housing means for creating an air flow through the nozzle (1). The nozzle (1) comprises an interior passage (10) for receiving the air flow from the base (16) and a mouth (12) through which the air flow is emitted. The nozzle (1) extends about an axis to define an opening (2) through which airfrom outside the fan assembly (100) is drawn by the air flow emitted from the mouth (12). The nozzle (1) comprises a surface over which the mouth (12) is arranged to direct the air flow. The surface comprises a diffuser portion (46) tapering away from the axis, and a guide portion (48) downstream from the diffuser portion (46) and angled thereto.

Description

technical field [0001] The invention relates to a fan assembly. In its preferred embodiment, the present invention relates to a domestic fan, such as a table fan, for increasing air circulation and air flow in a room, office or other domestic environment Background technique [0002] Conventional household fans typically include a set of blades or impellers mounted for rotation about an axis and a drive device for rotating the set of blades to generate an air flow. The movement and circulation of the airflow creates a "wind chill" or breeze and, as a result, the user experiences a cooling effect as heat is dissipated by convection and evaporation. Such fans can come in a variety of sizes and shapes. For example, ceiling fans may be at least 1 m in diameter and are typically mounted suspended from the ceiling to provide downward airflow to cool a room. Table fans, on the other hand, are typically around 30cm in diameter and are usually free standing and portable. [0003]...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04F5/16F04F5/46
CPCF04D33/00F04F5/16F04D25/08F04D29/441F04D29/545F04F5/20F04D29/44F04D29/40
Inventor 尼古拉斯·G·菲顿弗雷德里克·尼古拉斯彼得·D·甘马克
Owner DYSON TECH LTD