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Clothes dryer

A clothes dryer and fan technology, applied in the field of clothes dryers, can solve the problems of reducing the utilization efficiency of heating devices, affecting the life of electrical components, and overheating of heating devices, so as to improve uneven temperature distribution, eliminate potential safety hazards, and improve flow and The effect of pressure

Active Publication Date: 2017-08-08
QINGDAO HAIER WASHING MASCH CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The air inlet device includes a volute and a fan inside the volute, and a heating device is installed at the air outlet of the air inlet device, but in operation practice, the main flow of the airflow always flows to the heating device along the side wall in the direction of rotation and appears on the opposite side More severe reflux (see figure 1 ), this will reduce the utilization efficiency of the heating device, and will also lead to local overheating of the heating device, which may cause a certain safety hazard. In order to avoid this hidden danger, a temperature protection control is implemented for the heating device in practice. When the set safe temperature is exceeded, the power supply of the heating wire will be cut off to stop heating, but this will reduce the drying efficiency, prolong the drying time, and repeatedly turning on and off the power will affect the life of electrical components

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Such as figure 2 As shown, the fan provided inside the clothes dryer includes a volute 1 and a fan 2 .

[0030] The inner cavity of the volute 1 is a symmetrical structure, the fan 2 is located in the inner cavity of the volute 1 and the center of the fan 2 is set on the symmetrical axis of the inner cavity of the volute 1, and a guide is provided on the side of the fan 2 facing the air outlet of the volute 1 The device and the guide device have a gap with the outer periphery of the fan 2. The flow guiding device is a symmetrical structure and its center is set on the axis of symmetry of the inner chamber of the volute 1 .

[0031] Since the clothes dryer needs to rotate clockwise and counterclockwise regularly to flip the clothes, the fan of the clothes dryer must be able to effectively output airflow of the same pressure and air volume when the fan rotates clockwise and counterclockwise regularly.

[0032] The following details the cooperation between the fan and t...

Embodiment 2

[0051] The difference between this embodiment and Embodiment 1 is that: Figure 5 As shown, the air guiding device is a triangle, the triangular bottom surface of the triangular air guiding device 6 faces the fan 2, the apex of the triangle faces the air outlet of the volute 1, and the two waists of the triangular air guiding device 6 and the bottom surface are transitioned by an arc surface. The vertex angle of the triangular flow guiding device 6 is the angle formed by the arc surface.

[0052] In this example, if Figure 5 As shown, the two waists of the triangular deflector are planes. In other embodiments, such as Figure 6 As shown, the two waists of the triangular deflector are arc surfaces, and the arc surfaces are outwardly bulging arc surfaces.

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Abstract

The invention provides a clothes dryer which is equipped with a draught fan inside. The draught fan comprises a volute and a fan, wherein the inner chamber of the volute has a symmetric structure; the fan is located in the inner chamber of the volute, and the fan center is set on the symmetric axis of the volute inner chamber; a flow guide device is disposed on the side of the fan towards an air outlet of the volute, and clearance is formed between the flow guide device and fan circumference; and the flow guide device has a symmetric structure, and the center is located on the symmetric axis of the volute inner chamber. By the flow guide device, main flows of airflows generated by the fan can flow to a heating device along one side of the flow guide device as well as the opposite side wall of the volute; the main flows of the airflows cover most area or all the area of the heating device; a few of airflows return after touching the other side wall of the volute and then flow to the fan direction; and the airflows re-join rotation of the fan under guidance of the other side wall of the volute and the flow guide device, and will not generate collective back flows between the fan and the volute outlet. Use efficiency of the heating device is increased; the potential safety hazard caused by partial overheat of the heating device can be eliminated; and drying efficiency is increased.

Description

technical field [0001] The invention relates to a clothes dryer, which belongs to the field of clothes dryer devices. Background technique [0002] The basic working principle of the clothes dryer is to heat the relatively dry air, so that the dry air can reach the capacity of carrying moisture after the dry air is heated up. The hot and dry air is sent to the drum of the clothes dryer by the fan, and the wet clothes are heated after touching the wet clothes, and the moisture in the wet clothes is precipitated in the form of water vapor. At this time, the hot and dry air quickly absorbs the clothes The water vapor on the surface turns into medium-high temperature saturated humid air, and then the medium-high temperature saturated humid air is taken away from the clothes by the action of the fan, so as to achieve the purpose of drying clothes. At the same time, in order to ensure that the clothes in the dryer drum can be evenly dried, the clothes dryer drum rotates clockwise...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06F58/20F04D29/44F04D29/42F04D25/08
CPCD06F58/10D06F58/20F04D25/08F04D29/4226F04D29/441F05D2240/12F05D2240/14
Inventor 邴进东成荣锋颜鲁华李怡锦王鹏
Owner QINGDAO HAIER WASHING MASCH CO LTD