WO2014094333A1

WO2014094333A1 - Clothes dryer

Info

Publication number: WO2014094333A1
Application number: PCT/CN2012/087713
Authority: WO
Inventors: 李庆强; 殷培杰; 朱甫金; 潘婷婷; 李宁宁
Original assignee: 无锡小天鹅股份有限公司
Priority date: 2012-12-21
Filing date: 2012-12-27
Publication date: 2014-06-26

Abstract

Disclosed is a clothes dryer, characterized by comprising a barrel body (10), an inner barrel (100) arranged in the barrel body (10) and used for accommodating clothes, a drainage branch (103), and a drying duct (202, 203, 30), wherein the drying duct (202,203, 30) comprises a condenser (30), a fan (203)for driving an air flow from an inlet (102) to an outlet (101) via the drying duct (202,203, 30), and a heater (202) for heating the air flow, the drying duct (202,203, 30) passes into the barrel body (10) at the inlet (102) and the outlet (101) thereof, the condenser (30) is provided with a cooling medium duct (302) therein, and the cooling medium duct (302) is mutually isolated from the air flow in the condenser (30) via a duct wall thereof.

Description

Dry spine

Technical field

The invention relates to the field of household appliance manufacturing technology, in particular to clothes dryers. Background technique

At present, dryers and washing-drying machines on the market are mainly divided into straight row and condensation, and the condensation can be divided into water spray condensation, air condensation, heat pump and the like. Among them, the in-line heat utilization rate is not high, resulting in higher energy consumption. The spray condensing type consumes a lot of water; the air condensing type is less expensive and time consuming because the cooling medium is smaller than the heat; the heat pump costs are high. Summary of the invention

An object of the present invention is to provide a clothes dryer having a simple structure, a cost body, and a good condensation effect. A clothes dryer according to an embodiment of the present invention includes a tub body, an inner tub for receiving laundry, a drain branch, and a drying duct disposed in the tub, the drying duct including a condenser for passing through the drying duct a fan that drives air flow from the inlet to the outlet, and a heater for heating the air flow, and the drying duct opens into the entire body at its inlet and its outlet, in which a cooling medium conduit is disposed, The cooling medium conduit is isolated from the air flow within the condenser by its conduit wall.

The clothes dryer according to the above embodiment of the present invention may further have the following additional technical features: According to an example of the present invention, a heat sink is disposed on the pipe wall of the cooling medium pipe. According to an example of the present invention, the duct wall of the cooling medium duct is provided with a fin toward a side of the air flow in the condenser.

According to an example of the present invention, the fins on the pipe wall of the cooling medium pipe are fins. According to an example of the present invention, the cooling medium pipe enters water through a water inlet passage, and an outlet passage thereof communicates with the drainage branch.

According to an example of the invention, the cooling medium in the cooling medium conduit is a flowing liquid. According to an example of the invention, the cooling medium in the cooling medium conduit is water.

The additional aspects and advantages of the invention will be set forth in part in the description which follows. DRAWINGS

The above and/or additional aspects and advantages of the present invention will become apparent and readily understood from

1 is a schematic view of a clothes dryer in accordance with one embodiment of the present invention;

Figure 2 is a cross-sectional view along the line A-A in the condenser of Figure 1;

3 is a schematic view of a clothes dryer in accordance with another embodiment of the present invention. 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 for 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. The applicant's full application of the application number 201210562187. 5, 201220717445. 8 , 201210562719. 5, 201220716026. 2 is incorporated herein by reference.

In the present invention, it is to be understood that the terms "center", "vertical", "transverse", "upper", "lower", "previous", "rear", "left", "right", "vertical" The orientation or positional relationship of the indications "," "horizontal", "top", "bottom", "inside", "outside" and the like is based on the orientation or positional relationship shown in the drawings, and is merely for convenience and simplification of the description of the present invention. It is not intended to be a limitation or limitation of the invention.

In the present invention, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. The term "plurality" refers to two or more, unless specifically defined otherwise.

In the present invention, the terms "installation", "connected", "connected", "fixed" and the like shall be understood broadly, and may be either a fixed connection or a detachable connection, unless otherwise explicitly stated and defined. , or connected integrally; can be mechanical or electrical; can be directly connected, or indirectly connected through an intermediate medium, can be the internal communication of the two components. 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 also 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 directly above and above the second feature, or merely indicating that the first feature level is higher than the second feature. The first feature is "below" and "below" the second feature And "below" includes the first feature being directly above and above the second feature, or merely indicating that the first feature level is less than the second feature.

A clothes dryer 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 clothes dryer according to an embodiment of the present invention includes a tub body 10, an inner tub 100, a drain branch 103, and drying ducts 202, 203, 30. It should be noted that the clothes dryer referred to in the present invention generally refers to a washing machine with a drying function, and can be a single-function clothes dryer, or a washing and drying machine, or a drum washing and drying machine, etc. There are no restrictions.

The inner tub 100 is disposed in the tub 10 for receiving laundry.

The drying ducts 202, 203, 30 include a condenser 30, a fan 203 for driving the air flow from the inlet 102 to the outlet 101 through the drying ducts 202, 203, 30, and a heater 202 for heating the air flow. Among them, the drying ducts 202, 203, 30 pass into the tub 10 at their inlets 102 and their outlets 101.

A cooling medium conduit 302 is provided in the condenser 30, and the cooling medium conduit 302 is isolated from the air flow or water vapor in the condenser 30 by its conduit wall. The air flow or water vapor in the condenser 30 is cooled by passing through a cooling medium conduit 302 through which the cooling medium passes through the condenser 30. It should be noted that the cooling medium itself is not in contact with the condenser 30 air stream or water vapor. Experiments have shown that the passage of the cooling medium conduit 302 through the cooling medium in the condenser 30 greatly enhances the condensation effect.

In the present embodiment, a fin is further disposed on the pipe wall of the cooling medium pipe 302, and heat is radiated through the fins on the pipe wall to condense water vapor in the inner circulation clothes. In the preferred embodiment, as shown in Figures 1 and 2, the wall of the cooling medium conduit 302 is provided with fins on one side of the air flow in the condenser. That is, a plurality of fins extend from the duct walls on opposite sides of the cooling medium duct 302 toward the air flow in the condenser to increase the heat dissipating area to increase the heat dissipating effect. In Fig. 2, a cross-sectional view of the heat sink is illustrated. The cooling medium is passed through the intermediate chamber, and the inner circulation is obtained by high temperature and high humidity steam or air flow from the outer chamber, and both sides exchange heat through the heat sink. The intermediate chamber here is surrounded by the wall surface of the cooling medium conduit 302.

In the present invention, the drying ducts 202, 203, 30 constitute a so-called internal circulation heat system, and the connection to the cooling medium duct 302 constitutes an external circulation condensing system.

As shown in Fig. 1, in the preferred embodiment of the invention, a closed outer circulation condensing system is formed in connection with the cooling medium conduit 302 so that the cooling medium can be reused and recycled without consuming the amount of cooling medium. Specifically, the closed outer circulation condensing system connected to the cooling medium pipe 302 in the condenser 30 further includes an inlet pipe 3021, an outlet pipe 3022, a cooling medium storage tank 40, and a pump. 50. That is, the closed outer circulation condensing system includes an inlet pipe 3021, a cooling medium pipe 302, an outlet pipe 3022, a cooling medium storage tank 40, and a pump 50 that are connected to each other.

In a preferred embodiment, the cooling medium in the cooling medium conduit 302 is water. Of course, in some other possible embodiments, the cooling medium can be a flowing liquid that conducts heat away by a circulating flow of the flowing liquid. The cooling medium herein is not limited to a flowing liquid, water or the like, and may generally refer to a cooling medium having a cooling effect. Meanwhile, in the present invention, a closed external circulation condensing system is connected or connected to the cooling medium pipe 302. The cooling medium or the liquid can be repeatedly and recycled, and a sufficient amount of water is added at a time, and the water can ensure one. The condensing of the drying cycle is used. After drying, the water does not need to be cooled, and then drained. Then it is naturally cooled, and it is used until the next drying, thereby achieving water-free condensation and achieving water-saving effect.

When the dryer according to the embodiment of the present invention is in the drying mode, as shown in FIG. 1, the fan 203 drives the air flow from the inlet 102 to the outlet 101 through the drying ducts 202, 203, 30; the air is heated by the heater 202 After entering the inner tub 100 in the tub 10, the wet laundry is heated to form high temperature and high humidity steam; the high temperature and high humidity steam enters the cooling medium conduit 302 in the air condenser 30 from the inlet 102. At this time, the water pump 50 delivers a cooling medium such as water from the inlet pipe 3021 to the cooling medium pipe 302 in the air condenser 30, and exchanges heat with the high temperature and high humidity air stream or water vapor in the air condenser 30 to condense the water. The drier air is obtained, and the cycle is continued, and the drying pipes 202, 203, 30 are heated, thereby forming an internal circulation heat system or an internal heat cycle system; the heat exchanged cooling medium water is re-entered through the outlet pipe 3022. The medium storage tank 40 is thereby formed with an external cold circulation system, so that the cooling medium can be recycled, and a large amount of water can be saved.

It should be noted that the present invention provides a cooling medium pipe 302 in the condenser 30 to form a special heat exchanger, that is, the cold and hot two fluids are separated by a wall surface, are not in contact, and are heated through the partition wall. exchange.

According to the clothes dryer of the embodiment of the present invention, the heater 202, the fan 203, the condenser 30, and the inner tub 100 constitute an internal thermal cycle system or a heat circulation passage, and the cooling medium pipe 302 and the cooling medium storage tank 40 in the condenser 30. , such as a water tank, constitutes a cold circulation system or a cold fluid passage, and a heat exchange medium such as water exchanges heat with high-humidity water vapor on the wall of the cooling medium pipe 302 in the condenser to condense moisture, and the condensation effect is good, drying The time is short; the cooling medium such as water can also be recycled, the energy consumption and water consumption are low, the structure is simple, and the cost is low.

According to an embodiment of the present invention, as shown in FIG. 2, the fins on the pipe wall of the cooling medium pipe 302 are fins, or in other embodiments, coils, etc., thereby, the heat exchange area is larger and replaced. Thermal effect Better.

According to an embodiment of the present invention, as shown in FIG. 2, the fins on the pipe wall of the cooling medium pipe 302 are fins, or in other embodiments, coils, etc., thereby, the heat exchange area is larger and the heat exchange effect is obtained. better.

3 shows a clothes dryer according to another embodiment of the present invention, which differs from the above embodiment in that the cooling medium pipe 302 is filled with water through its water inlet passage 3021, its water outlet passage 3022 and the drainage. The branches 103 are in communication. It should be noted that the water inlet channel 3021 is generally referred to as a cooling medium input pipe, and the water outlet channel 3022 is also generally referred to as a cooling medium output pipe, and does not simply refer to water as a cooling medium. Of course, in a preferred embodiment of the invention, the cooling medium is preferably water.

That is, as shown in Fig. 3, a clothes dryer according to an embodiment of the present invention includes a tub 10, an inner tub 100, a drain branch 103, and drying ducts 202, 203, 30. It should be noted that the clothes dryer referred to in the present invention generally refers to a washing machine with a drying function, and can be a single-function clothes dryer, or a washing and drying machine, or a drum washing and drying machine, etc. There are no restrictions.

The inner tub 100 is disposed in the tub 10 for receiving laundry.

The drying ducts 202, 203, 30 include a condenser 30, a fan 203 for driving air flow from the inlet 102 to the outlet 101 through the drying ducts 202, 203, 30, and a heater 202 for heating the air flow. . Among them, the drying ducts 202, 203, 30 are passed into the tub 10 at their inlets 102 and their outlets 101.

A cooling medium conduit 302 is provided in the condenser 30, and the cooling medium conduit 302 is isolated from the air flow or water vapor in the condenser 30 by its conduit wall. The air flow or water vapor in the condenser 30 is cooled by passing through a cooling medium conduit 302 through which a cooling medium passes through the condenser 30. It should be noted that the cooling medium itself is not in contact with the condenser 30 air stream or water vapor. It has been verified that the cooling medium pipe 302 through which the cooling medium is passed in the condenser 30 can greatly enhance the condensing effect.

In this embodiment, a heat sink is further disposed on the pipe wall of the cooling medium pipe 302, and heat is transmitted through the heat sink on the pipe wall to condense water vapor in the inner circulation clothes. In the preferred embodiment, as shown in Figures 1 and 2, the wall of the cooling medium conduit 302 is provided with a fin toward the side of the airflow in the condenser. That is, a plurality of fins extend from the duct walls on opposite sides of the cooling medium duct 302 toward the air flow in the condenser to increase the heat dissipating area to increase the heat dissipating effect. A cross-sectional view of the heat sink is shown in Figure 2, and the cooling medium is shown passing through the intermediate cavity.

Afterwards, the inner circulation obtains high temperature and high humidity steam or air flow from the outer cavity, and both sides exchange heat through the heat sink. The intermediate cavity here is surrounded by the wall surface of the cooling medium pipe 302. In the present invention, the drying ducts 202, 203, 30 constitute a so-called internal circulation heat system, and the connection to the cooling medium duct 302 constitutes an external circulation condensing system.

As shown in Fig. 1, in the preferred embodiment of the invention, the cooling medium conduit 302 is flooded through its inlet passage 3021, and its outlet passage 3022 is in communication with the drainage branch 103.

In a preferred embodiment, the cooling medium in the cooling medium conduit 302 is water. Of course, in some other possible embodiments, the cooling medium can be a flowing liquid that conducts heat away by a circulating flow of the flowing liquid. The cooling medium herein is not limited to a flowing liquid such as water, and may be generally referred to as a cooling medium having a cooling effect.

When the dryer according to the embodiment of the present invention is in the drying mode, as shown in FIG. 1, the fan 203 drives the air flow from the inlet 102 to the outlet 101 through the drying ducts 202, 203, 30; the air is heated by the heater 202 After entering the inner tub 100 in the tub 10, the wet laundry is heated to form high temperature and high humidity steam; the high temperature and high humidity steam enters the cooling medium conduit 302 in the air condenser 30 from the inlet 102. At this time, a cooling medium such as water is sent into the cooling medium pipe 302 in the air condenser 30 through the water inlet passage 3021, and is exchanged with the high temperature and high humidity air flow or water vapor in the air condenser 30 to condense the water. To obtain relatively dry air, to circulate, continue to enter the drying ducts 202, 203, 30 to be heated, thereby forming an internal circulation thermal system or an internal thermal circulation system; a heat exchange cooling medium such as water and the drainage branch The water outlet passage 3022 that communicates with the passage 103 is discharged, thereby forming an external cold circulation system, which greatly improves the condensation effect.

According to the dryer of the embodiment of the present invention, the heater 202, the fan 203, the condenser 30, and the inner tub 100 constitute an internal thermal circulation system or a thermal circulation passage, and the cooling medium conduit 302 in the condenser 30 constitutes a cold circulation system or The cold fluid passage, the heat exchange medium such as water and the high-humidity water vapor exchange heat on the wall surface of the cooling medium pipe 302 in the condenser to condense the water, the condensation effect is good, the drying time is short, the energy consumption is low, and the structure is simple , low cost.

According to an embodiment of the present invention, as shown in FIG. 2, the fins on the pipe wall of the cooling medium pipe (302) are fins, or in other embodiments, coils, etc., thereby, the heat exchange area is larger. , heat transfer effect is better.

The clothes dryer according to the embodiment of the present invention has a short drying time, low energy consumption and water consumption, simple structure, and low cost. Compared with the straight row type, it can make full use of the heat of drying and reduce the energy consumption; The cooling water is recycled and does not cause water consumption during the drying process. Compared with the air condensation type, the cooling medium is water, which has better cooling effect and can shorten the condensation time. Compared with the heat pump type, it not only saves drying. The advantage of dry time, while also having a great cost advantage.

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 specific features that are described in connection with the embodiments or examples. 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 does not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples.

Although the embodiments of the present invention have been shown and described, it is understood that the foregoing embodiments are illustrative and not restrictive Variations, modifications, alterations and variations of the above-described embodiments are possible within the scope of the invention.

Claims

claims

1. A clothes dryer, characterized in that it includes:

The barrel, the inner barrel for receiving clothes, the drainage branch, and the drying pipe. The drying pipe includes: a condenser, a fan for driving the air flow from the inlet to the outlet through the drying pipe, And a heater for heating the air flow, and the drying pipe leads into the body at its inlet and outlet, and a cooling medium pipe is provided in the condenser, and the cooling medium pipe communicates with the condenser through its pipe wall The air flows inside are isolated from each other.

2. The clothes dryer according to claim 1, characterized in that: the clothes dryer includes an external circulation condensation system connected to a cooling medium pipeline.

3. The clothes dryer according to claim 2, characterized in that: the external circulation condensation system connected to the cooling medium pipe is a closed external circulation condensation system.

4. The clothes dryer according to claim 3, characterized in that: the closed external circulation condensation system includes an inlet pipe, a cooling medium pipe, an outlet pipe, a cooling medium storage tank and a pump that are connected to each other.

5. The clothes dryer according to claim 1, characterized in that: a heat sink is provided on the pipe wall of the cooling medium pipe.

6. The clothes dryer according to claim 5, characterized in that: the pipe wall of the cooling medium pipe is provided with a heat sink on a side facing the air flow in the condenser.

7. The clothes dryer according to claim 5, characterized in that: the heat sinks on the pipe wall of the cooling medium pipe are fins.

8. The clothes dryer according to claim 1, characterized in that: the cooling medium pipe enters water through a water inlet channel, and its water outlet channel is connected with the drainage branch.

9. The clothes dryer according to claim 1, characterized in that: the cooling medium in the cooling medium pipe is a flowing liquid.

10. The clothes dryer according to claim 9, characterized in that: the cooling medium in the cooling medium pipe is water.

11. The clothes dryer of claim 1, wherein the heater is an electric heating wire.