CN216786601U

CN216786601U - Clothing treatment equipment with drying function

Info

Publication number: CN216786601U
Application number: CN202122751628.3U
Authority: CN
Inventors: 闫学勇; 殷曙光; 李光旭
Original assignee: Qingdao Haier Washing Machine Co Ltd; Haier Smart Home Co Ltd
Current assignee: Qingdao Haier Washing Machine Co Ltd; Haier Smart Home Co Ltd
Priority date: 2021-11-11
Filing date: 2021-11-11
Publication date: 2022-06-21
Anticipated expiration: 2031-11-11

Abstract

The utility model belongs to the technical field of clothes treatment equipment, and discloses clothes treatment equipment with a drying function. The clothes treatment equipment with the drying function comprises a clothes treatment barrel, an air channel and a heat pump mechanism, wherein two ends of the air channel are respectively communicated with the clothes treatment barrel, and the heat pump mechanism comprises a compressor, a condenser, an evaporator and an intermediate heat exchanger; the inlet of the condenser is connected with the compressor; the intermediate heat exchanger comprises a first heat exchange channel and a second heat exchange channel, one end of the first heat exchange channel is connected with an outlet of the condenser, the other end of the first heat exchange channel is connected with an inlet of the evaporator, one end of the second heat exchange channel is connected with an outlet of the evaporator, the other end of the second heat exchange channel is connected with the compressor, and media in the first heat exchange channel can exchange heat with media in the second heat exchange channel. The intermediate heat exchanger can prevent the exhaust pressure of the compressor from rising sharply, and can avoid the problem of liquid return of the compressor.

Description

Clothing treatment equipment with drying function

Technical Field

The utility model relates to the technical field of clothes treatment equipment, in particular to clothes treatment equipment with a drying function.

Background

In order to simplify the structure and reduce the cost, the drum body and the main impeller in part of the existing heat pump clothes dryers share one motor, and the motor can drive the drum body and the main impeller to rotate when being started, so that the production and operation cost is saved.

Because the roller barrel needs to rotate positively and negatively, when the roller barrel rotates reversely, the main impeller cannot drive the impeller to flow along the preset direction, and therefore no circulating air exists in the air duct. This causes a sharp increase in the temperature of the medium at the outlet of the condenser, which in turn causes a sharp increase in the discharge pressure of the compressor, and also a risk of liquid return of the compressor due to a reduction in the absorption of heat by the evaporator.

At present, the normal operation of the compressor is usually ensured by shortening the same reverse rotation time of the roller as much as possible in the industry, but the effect of shaking up clothes can not be achieved by reducing the reverse rotation time of the roller body, so that the clothes are seriously wound. In the industry, a heat radiation fan is additionally arranged beside the compressor to reduce the rising amplitude of the exhaust temperature, but the energy consumption is increased, and the heat radiation effect on the compressor is not ideal.

Therefore, it is desirable to provide a laundry treating apparatus having a drying function to solve the above problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide clothes treatment equipment with a drying function, which can solve the problems of rapid rise of the exhaust pressure of a compressor and liquid return caused by the fact that a drum body and a main impeller share a motor.

In order to achieve the purpose, the utility model adopts the following technical scheme:

a laundry treating apparatus having a drying function, comprising a laundry treating drum and an air duct, both ends of the air duct being respectively communicated with the laundry treating drum, the laundry treating apparatus having a drying function further comprising a heat pump mechanism, the heat pump mechanism comprising:

a compressor;

the condenser is arranged at one end in the air duct, and the inlet of the condenser is connected with the compressor;

the evaporator is arranged at the other end in the air duct;

the intermediate heat exchanger comprises a first heat exchange channel and a second heat exchange channel, one end of the first heat exchange channel is connected with the outlet of the condenser, the other end of the first heat exchange channel is connected with the inlet of the evaporator, one end of the second heat exchange channel is connected with the outlet of the evaporator, the other end of the second heat exchange channel is connected with the compressor, and media in the first heat exchange channel can exchange heat with media in the second heat exchange channel.

As an alternative of the above laundry treating apparatus with drying function, a throttling device is provided between the first heat exchanging channel and the inlet of the evaporator.

As an alternative to the above-mentioned laundry treating apparatus with drying function, the intermediate heat exchanger, the compressor and the throttle device are all disposed outside the air duct.

As an alternative to the above-mentioned laundry treating apparatus with drying function, the throttling means is a capillary tube, a throttle valve, or an electronic expansion valve.

As an alternative to the above-mentioned clothes treating apparatus with drying function, the clothes treating apparatus with drying function further includes an impeller and a motor, an output shaft of the motor is respectively connected with the impeller and the clothes treating drum to drive the impeller and the clothes treating drum to rotate, and the impeller is disposed in the air duct.

As an alternative to the above-mentioned laundry treating apparatus with drying function, the evaporator is disposed at an inlet end of the air duct, and the condenser is disposed at an outlet end of the air duct.

As an alternative to the above laundry treating apparatus having a drying function, the condenser and/or the evaporator is a finned tube heat exchanger or a plate heat exchanger.

As an alternative of the above laundry treating apparatus with drying function, the inlet end of the air duct is provided with a lint filtering assembly.

As an alternative to the above-mentioned laundry treating apparatus with a drying function, the lint filter assembly may be detachably connected to the duct.

As an alternative to the above-mentioned laundry treating apparatus with drying function, the laundry treating apparatus with drying function is a clothes dryer or a washing and drying all-in-one machine.

The utility model has the beneficial effects that:

in the clothes treatment equipment with the drying function, the intermediate heat exchanger is additionally arranged between the condenser and the heat exchanger, so that the medium at the outlet of the condenser can be precooled, and the medium temperature is prevented from being greatly increased, so that the exhaust pressure of the compressor cannot be rapidly increased, and the compressor cannot be protected at high temperature due to the increase of the exhaust temperature and the pressure; meanwhile, the intermediate heat exchanger can also transfer heat to the medium at the outlet of the evaporator, so that the medium returning to the compressor is in a gaseous state, and the normal operation of the compressor is ensured.

Drawings

Fig. 1 is a schematic structural diagram of a heat pump mechanism and an air duct according to the present invention.

In the figure:

1. an air duct; 2. a compressor; 3. a condenser; 4. an evaporator; 5. an intermediate heat exchanger; 51. a first heat exchange channel; 52. a second heat exchange channel; 6. a throttling device.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the utility model and are not limiting of the utility model. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, removably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature "on," "above" and "over" the second feature may include the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "right", etc. are used in an orientation or positional relationship based on that shown in the drawings only for convenience of description and simplicity of operation, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.

The embodiment provides a clothes treatment device with a drying function, which can be a clothes dryer and a washing and drying integrated machine. The clothes treatment apparatus includes an outer cabinet, an outer tub, a clothes treatment tub rotatably disposed in the outer tub, and a heat pump mechanism. As shown in figure 1, an air duct 1 is constructed in the outer box body, two ends of the air duct 1 can be respectively communicated with the clothes treatment cylinder so as to form a circulating drying passage with the clothes treatment cylinder, and a heat pump mechanism can realize heat exchange so as to dry clothes.

In order to drive the air flow to flow in the drying passage, an impeller is arranged in the air duct 1, and the impeller drives the air flow by rotating so that the air flow flows to carry out heat exchange. In order to simplify the structure of the laundry treating apparatus and reduce the cost, the laundry treating apparatus in the embodiment further includes a motor, and an output shaft of the motor is respectively connected with the laundry treating drum and the impeller so as to drive the laundry treating drum and the impeller to rotate.

The same motor drives the clothes treatment drum and the impeller, so that the use number of the motors can be reduced, the equipment cost is reduced, the running cost of the clothes treatment equipment can be reduced, and the energy is saved.

Further, the motor can drive a clothing processing cylinder to rotate forward and rotate backward to make the clothing processing cylinder shake away the clothing in it through rotating forward and backward, avoid the clothing winding, be favorable to improving clothing stoving effect, also be favorable to reducing the clothing fold simultaneously, thereby experience for the better use of user.

As shown in fig. 1, the heat pump mechanism includes a compressor 2, a condenser 3, and an evaporator 4. The condenser 3 and the evaporator 4 are both arranged in the air duct 1 and are respectively positioned at two ends of the air duct 1. The condenser 3, the evaporator 4 and the compressor 2 form a heat exchange medium circulation loop. The condenser 3 is used for transferring heat to the air flow in the air duct 1 so as to heat the temperature of the air flow in the air duct 1, and then the temperature of a medium in the condenser 3 is reduced; the medium at the outlet of the condenser 3 passes through the evaporator 4, the evaporator 4 is used for absorbing the heat of the air flow in the air duct 1 so as to reduce the temperature of the air flow in the air duct 1, the medium temperature in the evaporator 4 rises, and the medium enters the condenser 3 after passing through the compressor 2 so as to heat the air flow in the air duct 1.

Specifically, the evaporator 4 is provided at an inlet end of the air duct 1, and the condenser 3 is provided at an outlet end of the air duct 1. When clothes need to be dried, after air flow in the air duct 1 passes through the condenser 3, the temperature of a medium in the condenser 3 is absorbed and raised, and dry high-temperature air flow is formed. The dry high temperature air flow contacts with the wet clothes in the clothes processing drum after entering the clothes processing drum. After the wet clothes are heated by the dry high-temperature airflow, the wet clothes carry moisture to form wet hot airflow. The wet hot air flow enters the evaporator 4 to dissipate heat, and condensed water is condensed out, so that dry low-temperature air flow is obtained. The low temperature gas stream passes again through the condenser 3. The purpose of drying the clothes is achieved in such a circulating way.

Because the clothes treatment drum and the impeller share the same motor, when the clothes treatment drum rotates reversely, no circulating airflow exists in the air duct 1, the temperature of an outlet medium of the condenser 3 rises sharply, the exhaust pressure of the compressor 2 rises, the heat absorption of the evaporator 4 is reduced, and the risk of liquid return of the compressor 2 is easily caused.

To solve the above problem, the heat pump mechanism in this embodiment further includes an intermediate heat exchanger 5, and the intermediate heat exchanger 5 includes a first heat exchange passage 51 and a second heat exchange passage 52. The inlet of the condenser 3 is connected to the compressor 2, the outlet of the condenser 3 is connected to one end of the first heat exchange path 51, and the other end of the first heat exchange path 51 is connected to the inlet of the evaporator 4. An outlet of the evaporator 4 is connected to one end of the second heat exchange path 52, and the other end of the second heat exchange path 52 is connected to the compressor 2. And the medium in the first heat exchange channel 51 can exchange heat with the medium in the second heat exchange channel 52.

When the motor drives the clothes treatment barrel to rotate reversely, because no circulating air exists in the air duct 1, the medium in the condenser 3 cannot exchange heat quickly, and the temperature of the medium flowing out of the outlet of the condenser 3 rises rapidly. The medium whose temperature has risen enters the first heat exchange path 51, and the temperature is lowered by heat exchange with the medium in the second heat exchange path 52, so that the temperature of the medium entering the evaporator 4 is lowered, and the discharge pressure of the compressor 2 is prevented from rising sharply.

The medium flowing out through the outlet of the evaporator 4 enters the second heat exchange channel 52, and the medium in the second heat exchange channel 52 absorbs the temperature of the medium in the first heat exchange channel 51, so that the temperature of the medium entering the compressor 2 is increased, the medium is ensured to be gasified, the risk that the compressor 2 has liquid return is reduced, and the normal work of the compressor 2 is ensured.

In the embodiment, the intermediate heat exchanger 5 is added, so that the medium at the outlet of the condenser 3 can be precooled, and the medium temperature is prevented from being greatly increased, so that the exhaust pressure of the compressor 2 cannot be rapidly increased, and the high-temperature protection of the compressor 2 caused by the increase of the exhaust temperature and the pressure is ensured; meanwhile, the intermediate heat exchanger 5 can also transfer heat to the medium at the outlet of the evaporator 4, so that the medium returning to the compressor 2 is in a gaseous state, and the normal operation of the compressor 2 is ensured.

Compared with the prior art that the cooling fan is added at the side of the compressor, the intermediate heat exchanger 5 is arranged in the embodiment without additionally increasing energy consumption, and the normal work of the compressor 2 can be better ensured; in the present embodiment, a longer reverse rotation time of the laundry treating drum can be set by adding the intermediate heat exchanger 5 to prevent the laundry from being entangled.

Further, a throttling device 6 is arranged between the first heat exchange channel 51 and the inlet of the evaporator 4, the throttling device 6 can adjust the medium flow, and a pressure difference in the flow direction is established to ensure that the medium can flow smoothly.

Alternatively, the throttling device 6 is a capillary tube, a throttle valve or an electronic expansion valve, which can all function to regulate the medium flow and establish the fluid pressure difference.

Further, the intermediate heat exchanger 5, the compressor 2 and the throttling device 6 are all arranged outside the air duct 1, so that the influence of the air flow in the air duct 1 on the intermediate heat exchanger 5, the compressor 2 and the throttling device 6 is avoided.

Alternatively, the condenser 3 and/or the evaporator 4 may be a finned tube heat exchanger or a plate heat exchanger.

The finned tube heat exchanger is characterized in that fins are additionally arranged on a base tube to enhance heat transfer. The base tube can be a stainless steel tube, a steel tube or a copper tube and the like. The fins can be made of steel belts, stainless steel belts, copper belts or aluminum belts. The fin type heat exchanger adopts mechanical winding fins, the contact surface of the radiating fins and the radiating pipe is large and tight, the heat transfer performance is good and stable, the air passing resistance is small, steam or hot water flows through the base pipe, and heat is transferred to the air passing through the fins tightly wound on the base pipe, so that the air heating and cooling effects are achieved.

The plate heat exchanger is a new type high-efficiency heat exchanger formed by stacking a series of metal sheets with certain corrugated shapes. Thin rectangular channels are formed between the various plates and heat exchange is carried out through the half plates. The plate heat exchanger has the characteristics of high heat exchange efficiency, small heat loss, compact and light structure, convenience in installation and cleaning, long service life and the like.

Optionally, the inlet end of the air duct 1 is provided with a thread scrap component to filter thread scrap carried by airflow entering the air duct 1 from a clothes treatment drum, and avoid the thread scrap from passing through the evaporator 4 and the condenser 3, so that accumulation of the thread scrap on the surfaces of the evaporator 4 and the condenser 3 is reduced, and the heat exchange effect of the evaporator 4 and the condenser 3 is ensured.

Further, in order to conveniently clean the thread scraps, the thread scraps filtering component is detachably connected with the air duct 1. Specifically, line bits filtering component includes framework and filtration piece, framework and 1 detachable connections in wind channel, and filtration piece sets up in the framework to the interception line bits. Wherein, the filtering piece can be a filter screen or a filter HEPA. The frame body can be detachably connected with the air duct 1 through clamping or screws.

It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Numerous obvious variations, adaptations and substitutions will occur to those skilled in the art without departing from the scope of the utility model. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A laundry treating apparatus with drying function, comprising a laundry treating drum and an air duct (1), both ends of the air duct (1) being respectively communicated with the laundry treating drum, characterized in that the laundry treating apparatus with drying function further comprises a heat pump mechanism, the heat pump mechanism comprising:

a compressor (2);

the condenser (3) is arranged at one end in the air duct (1), and the inlet of the condenser (3) is connected with the compressor (2);

the evaporator (4) is arranged at the other end in the air duct (1);

the intermediate heat exchanger (5) comprises a first heat exchange channel (51) and a second heat exchange channel (52), one end of the first heat exchange channel (51) is connected with the outlet of the condenser (3), the other end of the first heat exchange channel (51) is connected with the inlet of the evaporator (4), one end of the second heat exchange channel (52) is connected with the outlet of the evaporator (4), the other end of the second heat exchange channel (52) is connected with the compressor (2), and media in the first heat exchange channel (51) can exchange heat with media in the second heat exchange channel (52).

2. Laundry treatment apparatus with drying function according to claim 1, characterized in that a throttling device (6) is provided between the first heat exchanging channel (51) and the inlet of the evaporator (4).

3. Laundry treatment apparatus with drying function according to claim 2, characterized in that the intermediate heat exchanger (5), the compressor (2) and the throttling device (6) are all arranged outside the air duct (1).

4. The laundry treating apparatus with drying function according to claim 2, characterized in that the throttling device (6) is a capillary tube, a throttle valve or an electronic expansion valve.

5. The laundry processing apparatus with drying function according to any one of claims 1-4, further comprising an impeller and a motor, wherein an output shaft of the motor is connected with the impeller and the laundry processing drum respectively to drive the impeller and the laundry processing drum to rotate, and the impeller is disposed in the air duct (1).

6. The laundry processing apparatus with drying function according to any one of claims 1-4, characterized in that the evaporator (4) is disposed at an inlet end of the air duct (1), and the condenser (3) is disposed at an outlet end of the air duct (1).

7. Laundry treatment apparatus with drying function according to any of claims 1-4, characterized in that the condenser (3) and/or the evaporator (4) is a finned tube heat exchanger or a plate heat exchanger.

8. The laundry treating apparatus with drying function according to any one of claims 1-4, characterized in that the inlet end of the air duct (1) is provided with a lint filtering assembly.

9. The laundry processing apparatus with drying function according to claim 8, characterized in that the lint filtering assembly is detachably connected with the air duct (1).

10. The laundry processing apparatus with drying function according to any one of claims 1-4, wherein the laundry processing apparatus with drying function is a clothes dryer or a washing and drying all-in-one machine.