WO2015062142A1

WO2015062142A1 - Heating system and clothes dryer or combined washer-dryer having same

Info

Publication number: WO2015062142A1
Application number: PCT/CN2013/088953
Authority: WO
Inventors: 秦琼; 朱甫金
Original assignee: 无锡小天鹅股份有限公司
Priority date: 2013-10-30
Filing date: 2013-12-10
Publication date: 2015-05-07
Also published as: CN103614890A

Abstract

Disclosed are a heating system and a clothes dryer or combined washer-dryer having the same. The heating system comprises: a liquid electric heater (1), a radiator (2) and an air duct (3), wherein the liquid electric heater (1) is suitable for heating a heat-conducting liquid flowing therethrough and has a heat-conducting liquid inlet (101) and a heat-conducting liquid outlet (102), the air duct (3) is used for conveying an air current, the radiator (2) is provided inside the air duct (3) and comprises a liquid channel, the liquid channel is used for receiving the heat-conducting liquid conveyed from the liquid electric heater (1), and the air current in the air duct is heated by the heat radiated from a surface of an outer wall of the radiator liquid channel.

Description

Heating system and dryer or washing machine having the same

Technical field

The present invention relates to the field of home appliances, and more particularly to a heating system for a clothes dryer or a washing and drying machine and a dryer or a washing and drying machine having the same. Background technique

At present, the electric type tumble dryer is PTC heating, electric heating tube, electric heating wire heating, all of which flow through the exposed electric heater surface; the clothes are easy to gather around the dryer, and the dust is sucked into the dryer. , attached to the surface of the exposed electric heater, when the heating element is working, it is easy to cause safety hazards such as burning. Summary of the invention

The present invention aims to solve at least one of the above technical problems in the prior art to some extent. To this end, an object of the present invention is to provide a heating system for a clothes dryer or a washing and drying machine, wherein the heating system of the dryer or the washing and drying machine adopts indirect heating to improve the safety of the heating system. Sex.

A second object of the present invention is to provide a dryer or a washing and drying machine having the heating system.

A heating system for a clothes dryer or a washer-dryer according to an embodiment of the present invention, comprising a liquid electric heater adapted to heat a heat-conducting liquid flowing therethrough and having a heat-conducting liquid inlet and a heat-conducting liquid outlet; a duct, the air duct is for conveying an air flow; the radiator is disposed in the air duct, the radiator includes a liquid pipeline, and the liquid pipeline is configured to receive the heat conductive liquid conveyed from the liquid heater, The air flow in the air passage is heated by heat dissipation from the outer wall surface of the radiator liquid pipe.

According to the heating system of the clothes dryer or the washing and drying machine according to the embodiment of the present invention, after the heat transfer liquid is heated by the liquid electric heater, the heat transfer liquid exchanges heat in the heat sink to heat the air passing through the air passage. Therefore, when the heating system performs dry clothes, the air used for drying clothes and the air passages will be in contact with the heat sink without coming into contact with the electric heater to avoid the dust in the air during the drying process. Dander and other electrical heaters cause burning hazards and improve the safety of the heating system.

Further, the heating system of the clothes dryer or the washing and drying machine according to the above embodiment of the present invention may further have the following additional technical features:

According to an embodiment of the present invention, the liquid electric heater includes a housing and a heat generating member having a housing chamber adapted to accommodate a heat transfer liquid, and the heat generating member is housed in the housing chamber. Thereby, the structure of the liquid electric heater is simple, the assembly and operation of the liquid electric heater are facilitated, and the assembly efficiency of the liquid electric heater is improved. The heat generating component is directly disposed in the outer casing, so that the heat generating component can heat the heat conductive liquid in the outer casing, so that the heat generated by the heat generating component can be The heat-conducting liquid is received, which not only improves the heating efficiency of the heat-generating component, but also reduces energy consumption and improves energy utilization. According to an embodiment of the invention, the heat generating component is a heating wire and the heating wire is spirally wound in the receiving cavity. Thereby, the contact area of the heater and the heat transfer liquid is increased, and the heating efficiency is further improved.

According to an embodiment of the invention, the heat transfer liquid is water or a heat transfer oil. Thereby, the price of the heat-conducting liquid is facilitated, the cost of the heating system is reduced, and the heat-conducting liquid has a high heat-conducting efficiency, reduces heat loss, and saves energy.

According to an embodiment of the invention, a liquid pump is connected between the liquid electric heater and the radiator. Thereby, the flow of the liquid for heat conduction can be promoted, the heat in the heat transfer liquid can be made uniform, and the drying efficiency can be improved.

A clothes dryer or a washing and drying machine according to an embodiment of the present invention includes: a clothes drying drum and a heating system. The clothes dryer has a hot air inlet and a cold air outlet; the heating system is a heating system according to the foregoing embodiment of the present invention, and an air outlet of the air duct is in communication with a hot air inlet of the clothes dryer drum.

A clothes dryer or a washing and drying machine according to an embodiment of the present invention includes the heating system according to the foregoing embodiment of the present invention. Therefore, when the heating system performs dry clothes, the air used for drying clothes and the air passages will be in contact with the heat sink without coming into contact with the electric heater to avoid the dust in the air during the drying process. Dander and other electrical heaters cause burning hazards, which improves the safety of the dryer or dry cleaning machine.

According to an embodiment of the invention, the cold air outlet is in communication with an air inlet of the air duct. Thereby, an air circulation is formed to prevent impurities in the outside air from entering the clothes dryer, and the clothes in the clothes dryer are kept clean. It also avoids the discharge of hot air from the cold air outlet, reduces the influence of the drying process of the dryer or the dry cleaning machine on the surrounding environment, improves the performance of the dryer or the dry cleaning machine, and improves the heat utilization rate. , reduce energy consumption, energy saving and environmental protection.

According to an embodiment of the invention, a filter screen is spaced between the cold air outlet and the air inlet. Therefore, when the air passes through the filter, the dust, dander, and the like in the air are filtered by the filter, thereby making the clothes in the clothes dryer more clean and hygienic, and improving the function of the dryer or the washing and drying machine. .

According to an embodiment of the invention, a condensing pump is connected between the cold air outlet and the air inlet of the air duct. Thereby, the moisture in the drying process is quickly condensed, so that the laundry can be quickly dried, and the drying efficiency of the dryer or the dry cleaning integrated machine is improved. DRAWINGS

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a schematic illustration of a heating system for a dryer or a washer-dryer in accordance with one embodiment of the present invention.

2 is a schematic view of a clothes dryer or a washing and drying machine according to an embodiment of the present invention.

Fig. 3 is a schematic view of a clothes dryer or a washing and drying machine according to another embodiment of the present invention. LIST OF REFERENCE NUMERALS: liquid electric heater 1; radiator 2; air duct 3; heat transfer liquid inlet 101; heat transfer liquid outlet 102; Heat transfer liquid 6; air inlet 31; air outlet 32; outer casing 11; heat generating member 12; drying cylinder 4; hot air inlet 41; cold air outlet 42; detailed description

The embodiments of the present invention are described in detail below, and the examples of the embodiments are illustrated in the drawings, wherein the same or similar reference numerals are used to refer to the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the drawings are intended to be illustrative of the invention and are not to be construed as limiting.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "previous", " Orientation or position of the following "," "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc. The relationship is based on the orientation or positional relationship shown in the drawings, and is merely for the convenience of the description of the invention and the simplified description, and is not intended to indicate or imply that the device or component referred to has a specific orientation, and is constructed and operated in a specific orientation. It is not to be understood as limiting the invention.

Moreover, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, features defining "first" and "second" may expressly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless specifically defined otherwise.

In the present invention, the terms "installation", "connected", "connected", "fixed" and the like should be understood broadly, and may be either a fixed connection or a detachable connection, unless otherwise explicitly stated and defined. , or integrated; can be mechanical connection, or electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be the internal communication of two elements or the interaction of two elements. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood on a case-by-case basis.

In the present invention, the first feature "on" or "under" the second feature may include direct contact of the first and second features, and may include first and second features, unless otherwise explicitly defined and defined. It is not in direct contact but through additional features between them. Moreover, the first feature "above", "above" and "above" the second feature includes the first feature being directly above and above the second feature, or merely indicating that the first feature level is higher than the second feature. The first feature "below", "below" and "below" the second feature includes the first feature being directly below and below the second feature, or merely indicating that the first feature level is less than the second feature.

A heating system for a clothes dryer or a washing and drying machine according to an embodiment of the present invention will be described in detail below with reference to the accompanying drawings.

As shown in FIG. 1, a heating system for a clothes dryer or a washing and drying machine according to an embodiment of the present invention includes: a liquid electric heater 1, a radiator 2, and a duct 3. The liquid heater is adapted to heat the thermally conductive liquid flowing therethrough and has a thermally conductive liquid inlet 101 and a thermally conductive liquid outlet 102. The air duct 3 is used to transport air flow. a radiator 2, the radiator 2 is disposed in the air duct 3, the radiator 2 includes a liquid pipeline for receiving electric heating from the liquid The heat transfer liquid conveyed by the device heats the air flow in the air passage through the heat dissipation from the outer wall surface of the radiator liquid pipe. According to the heating system for a clothes dryer or a washing and drying machine according to an embodiment of the present invention, after the heat conductive liquid 6 is heated by the liquid electric heater 1, the heat transfer liquid 6 exchanges heat in the heat sink 2, and passes through the air passage 3 The air is heated. Therefore, when the heating system performs dry clothes, the air used for drying clothes and the air passage 3 will be in contact with the heat sink without contacting the electric heater to avoid hair in the air during the drying process. Chips, dander, etc. contact the electric heater to cause burning hazard, which improves the safety of the heating system.

Specifically, as shown in FIG. 1, in a specific embodiment of the present invention, the liquid electric heater 1 has a heat transfer liquid inlet 101 and a heat transfer liquid outlet 102, wherein the heat transfer liquid inlet 101 is used for the heat transfer liquid 6 to enter the liquid electricity The heater 1 is heated to facilitate the liquid electric heater 1 to heat the heat transfer liquid 6 entering the heat transfer liquid outlet 102 for outputting the heat transfer liquid 6 heated by the electric heater for use. The inlet of the heat sink 2 (i.e., the interface of the lower portion of the heat sink 2 as shown in Fig. 1) is connected to the heat transfer liquid outlet 102, and the outlet of the heat sink 2 (i.e., the interface of the upper portion of the heat sink 2 shown in Fig. 1) and the heat transfer liquid inlet 101 is connected, so that the heat transfer liquid 6 heated by the liquid electric heater 1 flows into the heat sink 2, so that the heat sink 2 dissipates heat, and the heat transfer liquid 6 after the heat sink 2 dissipates back to the liquid electric heater 1, forming cycle. The air duct 3 has an air inlet 31 and an air outlet 32. The radiator 2 is disposed in the air duct 3. The air entering the air duct 3 from the air inlet 31 of the air duct 3 will exchange heat with the radiator 2, and the air duct 3 The air outlet 32 is discharged.

As shown in FIG. 1, in some embodiments of the present invention, the liquid electric heater 1 includes a casing 11 and a heat generating component 12 having a receiving cavity therein for accommodating the heat conductive liquid 6, and the heat generating component 12 is accommodated therein. Accommodate the cavity. Thereby, the structure of the liquid electric heater 1 is simple, the assembly and operation of the liquid electric heater 1 are facilitated, and the assembly efficiency of the liquid electric heater 1 is improved. The heat generating component 12 is disposed directly in the outer casing 11, so that the heat generating component 12 can heat the heat conductive liquid in the outer casing 11, so that the heat generated by the heat generating component 12 can be received by the heat conductive liquid, which not only improves the heating efficiency of the heat generating component 12, but also improves the heating efficiency of the heat generating component 12, and It also reduces energy consumption and improves energy efficiency.

Further, the heat generating member 12 of the liquid electric heater of the present invention may be disposed on the outer wall of the outer casing 11, or other forms of electric heaters of the prior art, which are not known in the prior art, and which are not carried out by the present invention. Detailed description.

Further, the heat generating component 12 is a heating wire, and the heating wire is spirally wound in the accommodating cavity. Thereby, the contact area of the heater 12 with the heat transfer liquid is increased, and the heating efficiency is further improved.

Of course, the heat generating member 12 may also be a heating element in the shape of a block, a honeycomb or the like, as will be understood by those skilled in the art.

Further, the heat transfer liquid 6 is water or a heat transfer oil. Thereby, the price of the heat-conducting liquid 6 is made convenient, the cost of the heating system is lowered, and the heat-conducting liquid 6 is also made to have high heat-conducting efficiency, reduce heat loss, and save energy and environment.

Advantageously, as shown in FIG. 1, the air inlet 31 and the air outlet 32 are respectively located at opposite ends of the air duct 3, and the air duct 3 has a small size and a large central portion of the air inlet 31 and the air outlet 32, and the radiator 2 is located in the middle of the air duct 3. Thereby, the time for the air entering the air duct 3 to contact with the radiator 2 is increased, and the radiator 2 is quickly heated to the input air duct 3 The air inside is easy to increase the temperature of the hot air and improve the drying effect. Moreover, the structure of the air duct 3 is simple and easy to form. In some embodiments of the invention, a liquid pump (not shown) is coupled between the liquid electric heater 1 and the radiator 2. Thereby, the flow of the heat transfer liquid 6 can be promoted, the heat in the heat transfer liquid 6 can be made uniform, and the drying efficiency can be improved.

It can be understood that the flow of heat can also be realized by the natural heat conduction between the heat-conductive liquids 6, in particular, when the liquid electric heater 1 heats the heat-conductive liquid located in the liquid electric heater 1, due to the liquid electric heater 1 The temperature of the heat transfer liquid 6 inside is high, and the temperature of the heat sink 2 is low, so that the heat of the heat transfer liquid 6 in the liquid electric heater 1 is transferred into the heat sink 2, thereby forming heat flow.

2 and 3 illustrate a clothes dryer or a washing and drying machine according to an embodiment of the present invention. Referring to FIGS. 2 and 3, a clothes dryer or a washing and drying machine according to an embodiment of the present invention includes: a clothes drying drum 4 And heating system.

Specifically, the dryer drum 4 has a hot air inlet 41 and a cold air outlet 42. The heating system is a heating system according to the above-described embodiment of the present invention, and the air outlet 32 of the air duct 3 communicates with the hot air inlet 41 of the clothes drying drum 4.

A clothes dryer or a washing and drying machine according to an embodiment of the present invention includes a heating system for a clothes dryer or a washing and drying machine according to the foregoing embodiment of the present invention. Therefore, when the heating system performs drying, the air for drying clothes and the air passing through the air duct 3 will be in contact with the radiator 2 without coming into contact with the liquid electric heater 1 to avoid air during the drying process. The dander, dander and the like in contact with the electric heater cause a burning hazard, which improves the safety of the dryer or the dry cleaning machine.

In one embodiment of the invention illustrated in Figure 3, the cold air outlet 42 is in communication with the air inlet 31 of the air duct 3. Thereby, air circulation is formed to prevent impurities in the outside air from entering the drying drum 4, and the laundry in the drying drum is kept clean. Moreover, the hot air can be prevented from being discharged from the cold air outlet 42, which reduces the influence of the drying process of the dryer or the dry cleaning machine on the surrounding environment, improves the performance of the dryer or the dry cleaning integrated machine, and can also improve the utilization of heat. Rate, reduce energy consumption, energy saving and environmental protection.

Advantageously, a screen (not shown) is interposed between the cold air outlet 42 and the wind inlet 31. Therefore, when the air passes through the filter, the dust, dander, and the like in the air are filtered by the filter, thereby making the clothes in the clothes drying drum 4 more clean and hygienic, and improving the functions of the dryer or the dry cleaning machine. .

Further, as shown in Fig. 3, a condensing pump 5 is connected between the cold air outlet 42 and the air inlet 31 of the air duct 3. Thereby, the moisture in the drying process is quickly condensed, so that the laundry can be quickly dried, and the drying efficiency of the dryer or the dry cleaning machine is improved.

Other configurations of the clothes dryer or the washing and drying machine according to the embodiment of the present invention, such as the power supply unit and the control unit, and the like, are known to those skilled in the art and will not be described in detail herein.

In the description of the present specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" and the like means a specific feature described in connection with the embodiment or example. A structure, material or feature is included in at least one embodiment or example of the invention. In the present specification, the schematic representation of the above terms is not necessarily directed to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be in place Any one or more of the embodiments or examples are combined in a suitable manner. Further, various embodiments or examples described in this specification can be joined and combined by those skilled in the art.

Although the embodiments of the present invention have been shown and described, it is understood that the above described embodiments are illustrative and are not to be construed as limiting the scope of the invention. The embodiments are subject to variations, modifications, substitutions and variations.

Claims

claims

1. A heating system for a clothes dryer or an all-in-one washer-dryer, characterized in that it includes:

A liquid electric heater, the liquid electric heater is suitable for heating the thermally conductive liquid flowing through and has a thermally conductive liquid inlet and a thermally conductive liquid outlet;

Air duct, the air duct is used to transport air flow;

Radiator, the radiator is arranged in the air duct, the radiator includes a liquid pipe, the liquid pipe is used to receive the heat-conducting liquid delivered from the liquid electric heater, and heats the air through the heat dissipation on the outer wall surface of the liquid pipe of the radiator. Air flow in the channel.

2. The heating system for a clothes dryer or an all-in-one washer-dryer according to claim 1, characterized in that the liquid electric heater includes a shell and a heating element, and the shell has a heat-conducting liquid inside. accommodating cavity, and the heating element is accommodated in the accommodating cavity.

3. The heating system for a clothes dryer or an all-in-one washer-dryer according to claim 2, characterized in that the heating element is an electric heating wire and the electric heating wire is spirally coiled in the accommodation cavity.

4. The heating system for a clothes dryer or an all-in-one washer-dryer according to any one of claims 1 to 3, characterized in that the heat-conducting liquid is water or heat-conducting oil.

5. The heating system for a clothes dryer or an all-in-one washer-dryer according to any one of claims 1 to 4, characterized in that a liquid pump is connected between the liquid electric heater and the radiator. .

6. A clothes dryer or an all-in-one washing and drying machine, which is characterized by including:

A clothes drying drum, the clothes drying drum has a hot air inlet and a cold air outlet;

Heating system, the heating system is a heating system for a clothes dryer or an all-in-one washer-dryer according to any one of claims 1-5, the air outlet of the air duct and the hot air of the drying drum The entrance is connected.

7. The clothes dryer or integrated washing and drying machine according to claim 6, characterized in that the cold air outlet is connected with the air inlet of the air duct.

8. The clothes dryer or integrated washing and drying machine according to claim 7, characterized in that a filter is spaced between the cold air outlet and the air inlet.

9. The clothes dryer or integrated washing and drying machine according to claim 7, characterized in that a condensation pump is connected between the cold air outlet and the air inlet of the air duct.