thread scrap cleaning method for heat pump clothes dryer and heat pump clothes dryer
阅读说明：本技术 一种热泵干衣机线屑清理方法及热泵干衣机 (thread scrap cleaning method for heat pump clothes dryer and heat pump clothes dryer ) 是由 刘秀姣 王健 刘庆伟 于 2018-07-19 设计创作，主要内容包括：本发明涉及干衣机领域,具体公开了一种热泵干衣机线屑清理方法及热泵干衣机,干衣机包括设于干衣机烘干风道内的热泵系统,所述热泵系统包括压缩机、冷凝器、抽风装置和蒸发器,该方法包括以下步骤：降低压缩机的功率和/或抽风装置的风速使蒸发器表面结霜；而后提高压缩机的功率和/或抽风装置的风速使蒸发器表面的霜融化并带走蒸发器表面附着的线屑。本发明利用结霜使翅片上附着的线屑凝固在蒸发器表面,而后通过融化霜形成的水带走翅片上附着的线屑,保持了翅片的清洁。而且完全采用干衣机现有的热泵系统进行除霜,无需增加新的结构,在不增加产品成本的前提下完成蒸发器表面附着的线屑清理。(The invention relates to the field of clothes dryers, and particularly discloses an heat pump clothes dryer thread scrap cleaning method and a heat pump clothes dryer, wherein the clothes dryer comprises a heat pump system arranged in a drying air duct of the clothes dryer, the heat pump system comprises a compressor, a condenser, an air exhaust device and an evaporator, and the method comprises the following steps of reducing the power of the compressor and/or the air speed of the air exhaust device to frost the surface of the evaporator, then improving the power of the compressor and/or the air speed of the air exhaust device to melt the frost on the surface of the evaporator and take away thread scrap attached to the surface of the evaporator.)
The heat pump clothes dryer thread scrap cleaning method is characterized by comprising the following steps of:
reducing the power of the compressor (1) and/or the wind speed of the air draft device to frost the surface of the evaporator (6); and then the power of the compressor (1) and/or the wind speed of the air draft device are/is increased to melt frost on the surface of the evaporator (6) and take away thread scraps attached to the surface of the evaporator (6).
2. The lint cleaning method for a heat pump clothes dryer according to claim 1, wherein when the lint adhered to the surface of the evaporator (6) is cleaned by adjusting the power of the compressor (1), the method comprises the steps of:
the compressor (1) works at a preset frosting power;
judging whether the surface of the evaporator (6) is frosted or not;
if yes, increasing the power of the compressor (1) from the preset defrosting power to the preset defrosting power; if not, the compressor (1) continues to operate at the preset frosting power until the surface of the evaporator (6) is frosted;
wherein the preset frosting power is less than the preset drying power.
3. The heat pump clothes dryer lint cleaning method according to claim 2, wherein, during the operation of the compressor (1) at the preset defrosting power, it is judged whether frost on the surface of the evaporator (6) is completely melted;
if yes, finishing the thread scraps cleaning on the surface of the evaporator (6); if not, the compressor (1) continues to operate at the preset defrosting power until the frost on the surface of the evaporator (6) is completely melted.
4. The lint cleaning method for a heat pump clothes dryer according to claim 1, wherein the method comprises the following steps when cleaning lint attached to the surface of the evaporator (6) by adjusting the wind speed of the air draft device:
the air draft device runs at a preset frosting wind speed;
judging whether the surface of the evaporator (6) is frosted or not;
if so, increasing the wind speed of the air draft device from the preset frosting wind speed to the preset defrosting wind speed; if not, the air draft device continues to operate at the preset frosting air speed until the surface of the evaporator (6) is frosted;
and the preset frosting wind speed is less than the preset drying wind speed.
5. The method for cleaning lint generated by a heat pump clothes dryer according to claim 5, wherein during the operation of the air draft device at the preset defrosting air speed, whether the frost on the surface of the evaporator (6) is completely melted is judged;
if yes, finishing the thread scraps cleaning on the surface of the evaporator (6); if not, the air draft device continues to operate at the preset frosting air speed until the frost on the surface of the evaporator (6) is completely melted.
6. The heat pump dryer lint cleaning method as claimed in any of claims 1 to 5, wherein the operation of the heat pump system is stopped after the lint cleaning of the surface of the evaporator (6) is completed.
7. The method for cleaning lint on a heat pump clothes dryer according to any of claims 1 to 5, wherein a user is reminded to clean lint attached to the surface of the evaporator (6) at intervals of th preset time.
8. The lint cleaning method for a heat pump clothes dryer according to claim 7, wherein the heat pump system further comprises a filter (5) disposed in the air duct between the evaporator (6) and the dryer drum (4);
reminding a user of cleaning the lint attached to the surface of the evaporator (6) every second preset time, wherein the th preset time is shorter than the second preset time.
9. Heat pump dryer lint cleaning method according to any of claims 1-5, characterized in that the air extraction device comprises a fan (3).
10, heat pump clothes dryer, characterized in that, the method for cleaning lint attached on the surface of the evaporator (6) is used for cleaning the lint in the heat pump clothes dryer lint cleaning method according to any of claims 1 to 9.
Technical Field
The invention relates to the field of clothes dryers, in particular to an method for cleaning lint of a heat pump clothes dryer and the heat pump clothes dryer.
Background
The heat pump clothes dryer, the line bits can be attached to the evaporator of the heating system, and then the drying effect is influenced. The method generally adopted in the prior art is to arrange a filter screen in front of an evaporator for collecting the thread scraps generated in the drying process. But still some tiny thread scraps or dust and the like are attached to the surface of the evaporator after passing through the filter screen, so that the heat exchange area of the evaporator is reduced, and the drying effect is influenced.
In order to solve the above technical problems, the collected condensed water is generally used to flush the thread scraps attached to the evaporator, but the above method has the following technical problems:
1. the structure of the washing waterway is complex, and the condensed water can be used for washing the evaporator only by filtering the thread scraps and dust in the condensed water; the line bits that filter off can not in time be got rid of, can lead to the filter screen to block up for a long time, causes the condensate water volume that can be used for clearing up the line bits to diminish, influences clean effect.
2. The thread scraps attached to the surface of the evaporator cleaned by the condensed water are limited by the amount of the condensed water, and the thread scraps cannot be cleaned without enough condensed water.
Disclosure of Invention
The invention aims to provide methods for cleaning lint on a heat pump clothes dryer and the heat pump clothes dryer, which can automatically clean lint attached to the surface of an evaporator and avoid the influence of condensed water when cleaning the lint attached to the evaporator.
In order to achieve the purpose, the invention adopts the following technical scheme:
A method for cleaning thread scraps of a heat pump clothes dryer, wherein the clothes dryer comprises a heat pump system arranged in a drying air duct of the clothes dryer, the heat pump system comprises a compressor, a condenser, an air exhaust device and an evaporator, and the method comprises the following steps:
reducing the power of the compressor and/or the wind speed of the air draft device to frost the surface of the evaporator; then the power of the compressor and/or the wind speed of the air draft device are/is increased to melt frost on the surface of the evaporator and take away thread scraps attached to the surface of the evaporator.
, when the power of the compressor is adjusted to clean the thread scraps adhered on the surface of the evaporator, the method comprises the following steps:
the compressor is operated at a preset frosting power;
judging whether the surface of the evaporator is frosted or not;
if so, increasing the power of the compressor from the preset defrosting power to the preset defrosting power; if not, the compressor continues to operate at the preset frosting power until the surface of the evaporator is frosted;
wherein the preset frosting power is less than the preset drying power.
, judging whether the frost on the surface of the evaporator is completely melted during the operation of the compressor at the preset defrosting power;
if so, finishing the thread scraps cleaning on the surface of the evaporator; if not, the compressor continues to operate at the preset defrosting power until the frost on the surface of the evaporator is completely melted.
, when the wind speed of the air draft device is adjusted to clean the thread scraps attached to the surface of the evaporator, the method comprises the following steps:
the air draft device runs at a preset frosting wind speed;
judging whether the surface of the evaporator is frosted or not;
if so, increasing the wind speed of the air draft device from the preset frosting wind speed to the preset defrosting wind speed; if not, the air draft device continues to operate at the preset frosting air speed until the surface of the evaporator is frosted;
and the preset frosting wind speed is less than the preset drying wind speed.
, judging whether the frost on the surface of the evaporator is completely melted or not in the process that the air draft device runs at the preset defrosting wind speed;
if so, finishing the thread scraps cleaning on the surface of the evaporator; if not, the air draft device continues to operate at the preset frosting air speed until the frost on the surface of the evaporator is completely melted.
, after the lint clean of the evaporator surface is completed, the heat pump system stops operating.
, reminding the user to clean the thread crumbs adhered to the surface of the evaporator at preset intervals .
, the heat pump system further comprises a filter disposed in the air duct between the evaporator and the clothes drying drum;
reminding a user of cleaning the lint attached to the surface of the evaporator at a second preset time interval, wherein the th preset time is less than the second preset time.
, the air extraction device includes a fan.
In order to achieve the purpose, the invention further provides heat pump clothes dryers, and lint adhered to the surface of the evaporator is cleaned by adopting the above method for cleaning lint of the heat pump clothes dryer.
The invention has the beneficial effects that: the invention utilizes frosting to solidify the thread scraps attached to the fins on the surface of the evaporator, and then the water formed by melting the frost carries the thread scraps attached to the fins, thereby keeping the cleanness of the fins. The existing heat pump system of the clothes dryer is completely adopted for defrosting, a new structure is not required to be added, and thread scraps attached to the surface of the evaporator are cleaned on the premise of not increasing the product cost; the device is not influenced by the amount of condensed water when the thread scraps attached to the evaporator are cleaned.
The heat pump clothes dryer can completely adopt the frosting and defrosting method or cleaning thread scraps without adopting a filter, so that the space utilization rate of a product is improved, the space for installing the filter can be used for installing a condenser and an evaporator, the sizes of the evaporator and the condenser are increased, the heat exchange area is increased, and the heat exchange efficiency is improved.
Drawings
Fig. 1 is a drying schematic diagram of a heat pump clothes dryer according to embodiment of the present invention;
FIG. 2 is a flow chart of a method for cleaning lint in a heat pump clothes dryer according to an embodiment of the present invention;
FIG. 3 is a flow chart of a method for cleaning lint in a heat pump clothes dryer according to a second embodiment of the present invention;
FIG. 4 is a flow chart of a method for cleaning lint in a heat pump clothes dryer according to a third embodiment of the present invention;
fig. 5 is a drying schematic diagram of a heat pump clothes dryer according to the fourth embodiment of the present invention.
In the figure:
1. a compressor; 2. a condenser; 3. a fan; 4. a clothes drying cylinder; 5. a filter; 6. an evaporator.
Detailed Description
The technical solution of the present invention is further illustrated by the following detailed description with reference to the drawings.
The embodiment provides line scrap cleaning methods for a heat pump clothes dryer, as shown in fig. 1, the clothes dryer includes a heat pump system arranged in a drying air duct of the clothes dryer, the heat pump system includes a
Not only can the lint attached to the surface of the evaporator 6 be cleaned by adjusting the power of the
Fig. 2 is a flowchart of a lint cleaning method for a heat pump clothes dryer according to the embodiment, which specifically includes the following steps: the wind speed of the power/air draft device of the
In the embodiment, the thread scraps attached to the fins are solidified on the surface of the evaporator 6 by utilizing frosting, and then the thread scraps attached to the fins are taken away by water formed by melting the frost, so that the cleanness of the fins is kept. The present embodiment adopts the current heat pump system of dryer to defrost completely, need not to increase new structure, accomplishes 6 adnexed threads on surface of evaporimeter and clears up under the prerequisite that does not increase product cost, does not receive the influence of the condensate water yield when realizing the adnexed threads on the clearance evaporimeter. And need not to adopt filter 5, can adopt above-mentioned method of frosting, defrosting or clear up the line bits completely, improve the space utilization of product, can be used for installing
The embodiment also provides heat pump clothes dryers, and the lint cleaning method of the heat pump clothes dryer is adopted to clean the lint attached to the surface of the evaporator 6.
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