Bladeless fan

A bladeless fan and cross-flow fan technology, which is applied to parts of pumping devices for elastic fluids, non-variable pumps, pump devices, etc., can solve problems such as loud noise, many components, and easy resonance. Achieve the effect of low noise, large air volume and uniform air outlet

Inactive Publication Date: 2014-07-23
胡晓存
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention provides a bladeless fan with simple structure, good air outlet effect and low running noise to solve the problem

Method used

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  • Bladeless fan
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Examples

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Example Embodiment

[0022] Examples:

[0023] A bladeless fan, such as Figure 1 to Figure 2 As shown, it includes a shell, the whole of which is surrounded by four sides into a closed ring shape, the center of the ring shell has a through hole, and the shell includes a front shell 1 and a rear shell 2 connected to each other. The two ends are located in the center of the front shell 1 and the rear shell 2 respectively.

[0024] The cavity formed by the front and rear shells 1, 2 constitutes an internal passage, and two cross-flow fans 3 are installed in the internal passage. The two cross-flow fans 3 are vertically arranged on both sides of the through hole. The axis of the cross flow fan 3 is arranged in parallel, and the cross flow fan 3 has preset upper and lower speed limits during operation. When the speed of one cross flow fan changes from the upper limit to the lower limit, the speed of the other cross flow fan changes from the lower limit to the upper limit. This change is realized by the s...

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Abstract

The invention relates to a bladeless fan which is simple in structure, good in air supplying effect and low in running noise. The bladeless fan comprises a shell and a cross-flow fan, wherein an internal channel is defined by the shell and is provided with at least one air inlet and at least one air outlet, the cross-flow fan is located in the internal channel and below the air inlets, an impeller of the cross-flow fan rotates to suck airflow and enable the airflow to penetrate through the air inlets to enter the internal channel, and at least a part of the airflow is emitted through the air outlets. The bladeless fan has the advantages that the cross-flow fan is adopted as an airflow generating source, turbulent flow does not exist, air supplying is uniform, blast capacity is high, noise is low, the airflow can reach far, and the bladeless fan is suitable for popularization and application.

Description

technical field [0001] The invention relates to a fan assembly, in particular to a bladeless fan. Background technique [0002] A traditional fan usually includes a motor, fan blades, a base or a fixed frame, a power supply, and the like. When the power is turned on, the motor rotates, driving the blades on the motor shaft to rotate, and the rotating blades generate airflow. Therefore, as the heat is taken away by convection and evaporation, the user feels the cooling effect within the range of the airflow. Now some improvements have been made to the traditional fan, that is, the fan with blades has been improved to the fan without blades. Now there are many introductions about bladeless fans. Such as the Chinese patent: "Fan (CN101749289A)", which describes a fan assembly for forming airflow, the fan assembly includes a nozzle mounted on a base receiving device, and the base receiving device is used to form an airflow passing through the nozzle . The nozzle includes an ...

Claims

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Application Information

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IPC IPC(8): F04D25/08F04D25/16F04D29/40F04D29/70F04D29/58
Inventor 胡晓存徐宝宝
Owner 胡晓存
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