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Blower

A blower and fan technology, applied in mechanical equipment, machines/engines, liquid fuel engines, etc., can solve the problems of limited installation location, larger overall product volume, different directions of air flow at the inlet and outlet, etc. To achieve the effect of simplifying the production process and suitable for mass production

Inactive Publication Date: 2008-07-02
LG ELECTRONICS (TIANJIN) APPLIANCES CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, if you want to increase the air volume and air pressure at the same time, you must make corresponding changes in the structure. If the size of the blower is increased, the overall volume of the product will be correspondingly increased if it is a home appliance product.
[0007] In addition, when the circular blower is used, in addition to the above-mentioned problems, there will also be a problem that the direction of the air flow at the inlet and the air flow at the outlet are different, so the installation position of the fan in the system is greatly restricted.

Method used

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Embodiment Construction

[0018] The present invention provides a kind of air blower, its structure mainly comprises driving motor, also includes: be combined on the driving motor, the rotating shaft 11 that rotates together with driving motor; Long cylindrical sleeve 12 that is fixed on the rotating shaft 11; From one end to the other end of the sleeve 12, it spirals on the outer peripheral surface of the sleeve 12 along the direction of the rotation axis to form a helical shape, and a plurality of blades 13 whose width is less than or equal to the diameter of the sleeve 12; the fan casing 15 wrapped outside the blades 13 .

[0019] The air inlet and the air outlet of the fan case 15 expand radially outward.

[0020] The inlet and outlet of the fan casing 15 are curved and expanded with a set radius of curvature.

[0021] The radius of curvature of the entrance of the fan casing is different from the radius of curvature of the exit.

[0022] The radius of curvature of the inlet of the fan housing 15...

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Abstract

The invention provides a fan and comprises the actuating motor, axis of rotation circumvolving with the actuating motor, sleeve fixed on the axis of rotation and plural helical blade from one end of the sleeve to the other end. In addition, it also includes the shell of fan cover the blade. The invention has the following benefits: the helical blades covering the circumferential surface of the sleeve do not overlap, so it can be made through simple mould. It simplifies the making greatly and is especially adaptable to the volume-produce. And we can make various complex blowing fans.

Description

technical field [0001] The present invention relates to an invention related to a blower, and particularly relates to a blower installed in household electrical appliances such as air conditioners or other manufacturing equipment to make air flow in the axial direction and obtain high air volume and high air pressure. Background technique [0002] In general, various types of blowers for forced air are installed in home appliances such as air conditioners or in the ventilation systems of factory equipment. These blowers are classified according to the flow characteristics of their air supply: axial flow blowers and circular blowers. [0003] The axial blower is a blower whose air flow direction is parallel to the rotation axis. This kind of blower has the characteristics of large air flow but relatively low pressure. [0004] For circular blowers, the air flow at the inlet of the blade is usually in the direction of the rotation axis, but the flow direction at the outlet is...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04D29/38F04D29/54
Inventor 孫永福任慶錫金政勳黄成萬李廣源
Owner LG ELECTRONICS (TIANJIN) APPLIANCES CO LTD