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Turbofan and mold thereof

A turbo fan and wheel hub technology is applied in the field of turbo fans and molds for manufacturing turbo fans, which can solve the problems of increasing production costs of fans and the like

Inactive Publication Date: 2003-03-12
LG ELECTRONICS INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the fan of the related art increases the production cost

Method used

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  • Turbofan and mold thereof
  • Turbofan and mold thereof
  • Turbofan and mold thereof

Examples

Experimental program
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Embodiment Construction

[0034] Reference will now be made in detail to the preferred embodiments of the invention, examples of which are illustrated in the accompanying drawings.

[0035] Figure 5 is a top view of the turbofan according to the first embodiment of the present invention, Figure 6 for Figure 5 Longitudinal sectional view of a medium turbofan.

[0036] see Figure 5 and 6 , the fan of the first embodiment of the present invention comprises: hub 110, has protrusion 111 in its central part, is connected with the rotating shaft 140 of driving device (not shown in the figure); a plurality of blades 120 arranged radially on the circumferential portion of the hub 110 and centered around the rotating shaft 140 so as to be coupled with the cover 130 ; Also, the hub 110, the cover 130 and the blade 120 are made in one body.

[0037]The hub 110 includes a protrusion 111 protruding in the direction of the rotating shaft 140 so as to be coupled with the rotating shaft 140 of the driving dev...

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PUM

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Abstract

Disclosed is a turbofan which includes a hub coupled with a rotational shaft of a driving device, a plurality of blades installed at a circumference of the hub radially, and a shroud at an opposite side to the hub so as to be coupled with a plurality of the blades wherein the blades are placed between the shroud and the hub, and wherein the hub, blades, and shroud are formed in one body and wherein the shroud comprises a first extension protruding to extend from a coupling part with a leading edge of each of the blades in an inward radial direction of the rotational shaft and a second extension extending straightly from the first extension in a direction of the rotational axis toward a side opposite to the hub.

Description

technical field [0001] The invention relates to a turbo fan, in particular to a turbo fan and a mold for manufacturing the turbo fan. Background technique [0002] A turbofan is usually a centrifugal fan that forces air through the centrifugal force of the air generated by the rotation of the impeller. This turbo fan produces a large amount of airflow, making it suitable for large volume refrigerators. [0003] figure 1 Shows the structure of the turbofan in the related art, figure 2 show figure 1 Vertical sectional view of a common turbofan. [0004] see figure 1 and figure 2 , a turbofan 1 of the related art includes a hub 10 having a protrusion 11 at its central portion so as to be coupled with a rotating shaft 40 of a driving device (not shown in the figures); The cover 30 is arranged on the opposite surface of the hub 10 so as to be integrated with the blades, wherein the blades 20 are inserted between the cover 30 and the hub 10 . [0...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04D17/16F04D29/02F04D29/28F04D29/30
CPCF04D29/023F04D29/282F04D29/281F05D2230/20
Inventor 金承天
Owner LG ELECTRONICS INC