CN219385709U - Clothes dryer - Google Patents

Abstract

The application relates to the technical field of household appliances and discloses a clothes dryer. The clothes dryer includes: the box body is internally provided with a clothes drying cavity with an opening; one or more air channels are arranged in the wall of the box body, and the air inlet and the air outlet of each air channel are communicated with the clothes drying cavity; the box door is arranged at the opening, can be opened to expose the clothes drying cavity and can be closed to seal the clothes drying cavity; the air supply assembly is arranged on the box body, can suck air from the clothes drying cavity to form air flow, and can enable the formed air flow to be sent into the clothes drying cavity again through one or more air channels; the heat pump module is arranged on the box body and can dry air flow in one or more air channels; and the radio frequency module is arranged on the box body and can emit electromagnetic waves into the clothes drying cavity. The clothes dryer can dry wet clothes more quickly, and shortens waiting time of users.

Description

Clothes dryer

Technical Field

The present application relates to the technical field of household appliances, for example, to a clothes dryer.

Background

More and more households are equipped with dryers that are able to dry wet laundry faster, so that the drying of the wet laundry is no longer affected by the weather.

In the related art, there is provided a heat pump type clothes dryer which dries and heats air into dry hot air, and then makes the dry hot air flow through wet laundry to be dried, and takes moisture in the wet laundry away through the dry hot air.

In the process of implementing the embodiments of the present disclosure, it is found that at least the following problems exist in the related art:

in the related art, when wet clothes are dried by hot and dry air, the time for drying the wet clothes is long, and a user needs to wait for a long time, so that the use experience of the user is not facilitated.

It should be noted that the information disclosed in the foregoing background section is only for enhancing understanding of the background of the present application and thus may include information that does not form the prior art that is already known to those of ordinary skill in the art.

Disclosure of Invention

The following presents a simplified summary in order to provide a basic understanding of some aspects of the disclosed embodiments. This summary is not an extensive overview, and is intended to neither identify key/critical elements nor delineate the scope of such embodiments, but is intended as a prelude to the more detailed description that follows.

The embodiment of the disclosure provides a clothes dryer, which can dry wet clothes more quickly and shorten the waiting time of a user.

In some embodiments, the clothes dryer includes: the box body is internally provided with a clothes drying cavity with an opening; one or more air channels are arranged in the wall of the box body, and the air inlet and the air outlet of each air channel are communicated with the clothes drying cavity; the box door is arranged at the opening, can be opened to expose the clothes drying cavity and can be closed to seal the clothes drying cavity; the air supply assembly is arranged on the box body, can suck air from the clothes drying cavity to form air flow, and can enable the formed air flow to be sent into the clothes drying cavity again through one or more air channels; the heat pump module is arranged on the box body and can dry air flow in one or more air channels; and the radio frequency module is arranged in the box body and can emit electromagnetic waves into the clothes drying cavity.

In some embodiments, the case comprises: a bottom wall, the inside of which is provided with a first communication cavity, and a plate body, which is close to the clothes drying cavity, of which is provided with a first through hole; the top wall is internally provided with a second communication cavity, and a second through hole is formed in a plate body, close to the clothes drying cavity, of the top wall; the air inlet of the air duct is communicated with the first communication cavity, and the air outlet of the air duct is communicated with the second communication cavity.

In some embodiments, the air supply assembly includes: the induced draft fan is arranged in the first communication cavity, can suck gas from the clothes drying cavity through the first through hole to form air flow, and the formed air flow can enter the air duct.

In some embodiments, the air supply assembly further comprises: the air box is arranged at one side of the first communication cavity, which is close to the clothes drying cavity, and is communicated with the clothes drying cavity through the first through hole; the suction end of the air suction fan is arranged in the air box, and the output end of the air suction fan is arranged outside the air box and is positioned in the first communication cavity.

In some embodiments, the induced draft fan is a centrifugal fan.

In some embodiments, the air supply assembly further comprises: the air supply fan is arranged in the second communication cavity and positioned in the second through hole, and can uniformly send the air flow in the air duct into the clothes drying cavity.

In some embodiments, the blower fan is a passive disturbance fan; the air suction fan sucks air from the clothes drying cavity to form air flow, and the formed air flow enters the air duct, so that the pressure in the air duct is higher than the pressure in the clothes drying cavity; and at the second through hole, the pressure difference between the air duct and the clothes drying cavity can drive the passive disturbance fan to rotate.

In some embodiments, the case further comprises: the first side wall is provided with a first air duct; the second side wall is provided with a second air duct; and a back wall provided with a third air duct; the air inlets of the first air channel, the second air channel and the third air channel are communicated with the first communication cavity; and air outlets of the first air channel, the second air channel and the third air channel are communicated with the second communication cavity.

In some embodiments, a water pan is provided at the bottom of the first communication chamber.

In some embodiments, one or more clothes hanging poles are arranged in the clothes drying cavity.

The clothes dryer provided by the embodiment of the disclosure can realize the following technical effects:

the heat pump module in the clothes dryer can dry air flow in one or more air channels, the air supply assembly can suck air from the clothes drying cavity to form air flow, the formed air flow enters the air channel and is dried by the heat pump module and then is sent into the clothes drying cavity again, and the dried air flow flows through wet clothes in the clothes drying cavity and can take away moisture of the wet clothes to dry the wet clothes; the radio frequency module in the clothes dryer can emit electromagnetic waves into the clothes drying cavity, and moisture in wet clothes is directly heated by the electromagnetic waves so that the moisture in the wet clothes is quickly gasified, and the time required for drying the wet clothes is greatly shortened. Therefore, the clothes dryer provided by the embodiment of the disclosure realizes clothes drying through the combination of the heat pump module and the radio frequency module, so that wet clothes can be dried relatively quickly, and the waiting time of a user is shortened.

The foregoing general description and the following description are exemplary and explanatory only and are not restrictive of the application.

Drawings

One or more embodiments are illustrated by way of example and not limitation in the figures of the accompanying drawings, in which like references indicate similar elements, and in which like reference numerals refer to similar elements, and in which:

FIG. 1 is a schematic view of a clothes dryer according to an embodiment of the present disclosure;

FIG. 2 is a schematic cross-sectional view of a dryer provided in accordance with an embodiment of the present disclosure;

FIG. 3 is an enlarged schematic view of a portion of a dryer provided in an embodiment of the present disclosure;

FIG. 4 is an enlarged partial schematic view of another dryer provided by an embodiment of the present disclosure;

FIG. 5 is a schematic view of another clothes dryer provided in an embodiment of the present disclosure;

FIG. 6 is a schematic cross-sectional view taken along line A-A of FIG. 1 provided in an embodiment of the present disclosure;

FIG. 7 is a schematic cross-sectional view of another dryer provided by an embodiment of the present disclosure;

fig. 8 is a schematic structural diagram of a matching component provided in an embodiment of the present disclosure.

Reference numerals:

1. a case; 11. a clothes drying cavity; 12. an opening; 14. a bottom wall; 141. a first communication chamber; 15. a top wall; 151. a second communication chamber; 16. a first sidewall; 161. a first air duct; 17. a second sidewall; 171. a second air duct; 18. a back wall; 181. a third air duct;

2. a door;

3. an air supply assembly; 31. an induced draft fan; 32. an air supply fan; 33. a wind box;

4. a heat pump module; 41. an evaporator; 42. a condenser; 421. a first bending part; 422. a second bending part; 43. a compressor; 44. an expansion valve;

5. a radio frequency module; 51. a solid-state power amplifier element; 52. a radio frequency radiating plate; 53. a radio frequency ground plate; 54. a matching unit; 541. matching links; 542. an inductance; 543. and (3) a switch.

Detailed Description

So that the manner in which the features and techniques of the disclosed embodiments can be understood in more detail, a more particular description of the embodiments of the disclosure, briefly summarized below, may be had by reference to the appended drawings, which are not intended to be limiting of the embodiments of the disclosure. In the following description of the technology, for purposes of explanation, numerous details are set forth in order to provide a thorough understanding of the disclosed embodiments. However, one or more embodiments may still be practiced without these details. In other instances, well-known structures and devices may be shown simplified in order to simplify the drawing.

The terms first, second and the like in the description and in the claims of the embodiments of the disclosure and in the above-described figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate in order to describe embodiments of the present disclosure. Furthermore, the terms "comprise" and "have," as well as any variations thereof, are intended to cover a non-exclusive inclusion.

In the embodiments of the present disclosure, the terms "upper", "lower", "inner", "middle", "outer", "front", "rear", and the like indicate an azimuth or a positional relationship based on that shown in the drawings. These terms are used primarily to better describe embodiments of the present disclosure and embodiments thereof and are not intended to limit the indicated device, element, or component to a particular orientation or to be constructed and operated in a particular orientation. Also, some of the terms described above may be used to indicate other meanings in addition to orientation or positional relationships, for example, the term "upper" may also be used to indicate some sort of attachment or connection in some cases. The specific meaning of these terms in the embodiments of the present disclosure will be understood by those of ordinary skill in the art in view of the specific circumstances.

In addition, the terms "disposed," "connected," "secured" and "affixed" are to be construed broadly. For example, "connected" may be in a fixed connection, a removable connection, or a unitary construction; may be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements, or components. The specific meaning of the above terms in the embodiments of the present disclosure may be understood by those of ordinary skill in the art according to specific circumstances.

The term "plurality" means two or more, unless otherwise indicated.

In the embodiment of the present disclosure, the character "/" indicates that the front and rear objects are an or relationship. For example, A/B represents: a or B.

The term "and/or" is an associative relationship that describes an object, meaning that there may be three relationships. For example, a and/or B, represent: a or B, or, A and B.

It should be noted that, without conflict, the embodiments of the present disclosure and features of the embodiments may be combined with each other.

The embodiment of the disclosure provides a clothes dryer, which can dry wet clothes more quickly and shorten the waiting time of a user.

Referring to fig. 1 to 8, the clothes dryer provided in the embodiment of the present disclosure includes a cabinet 1, a cabinet door 2 air supply assembly 3, a heat pump module 4, and a radio frequency module 5.

The inside of the box body 1 is provided with a clothes drying cavity 11, and the clothes drying cavity 11 is communicated with the outside of the box body 1 through an opening 12. One or more air channels are arranged in the wall of the box body 1, and the air inlet and the air outlet of each air channel are communicated with the clothes drying cavity 11. The door 2 is provided in the opening 12, openable to communicate with the drying chamber 11, and closable to close the drying chamber 11. The air supply assembly 3 is arranged in the box body 1, can suck air from the clothes drying cavity 11 to form air flow, and can enable the formed air flow to be sent into the clothes drying cavity 11 again through one or more air channels. The heat pump module 4 is arranged in the box 1 and can dry the air flow in one or more air channels. The radio frequency module 5 is provided in the case 1, and can emit electromagnetic waves into the clothes drying chamber 11.

The heat pump module 4 in the clothes dryer provided by the embodiment of the disclosure can dry one or more air flows in the air duct, the air supply assembly 3 can suck air from the clothes drying cavity 11 to form air flows, the formed air flows enter the air duct and are dried by the heat pump module 4 and then are sent into the clothes drying cavity 11 again, and the dried air flows through wet clothes in the clothes drying cavity 11 and can take away moisture of the wet clothes to dry the wet clothes; the radio frequency module 5 in the clothes dryer can emit electromagnetic waves into the clothes drying cavity 11, and the electromagnetic waves are utilized to directly heat the moisture in the wet clothes so as to quickly gasify the moisture in the wet clothes, thereby greatly shortening the time required for drying the wet clothes. Therefore, the clothes dryer provided by the embodiment of the disclosure realizes clothes drying through the combination of the heat pump module 4 and the radio frequency module 5, so that wet clothes can be dried more quickly, and the waiting time of a user is shortened.

The basic principle of the heat pump module 4 for drying clothes is as follows: the water in the clothes to be dried is heated by the dry hot air flow so as to change the liquid water in the clothes to be dried into water vapor, and then the water vapor is taken away by the dry hot air flow, so that the effect of drying the clothes is achieved.

The basic principle of the radio frequency module 5 for drying clothes is as follows: for clothes to be dried, water molecules in water contained in the clothes are polar molecules, cloth or ornaments thereof are nonpolar molecules, the arrangement direction of the water molecules and other polar molecules can be changed along with the direction of the electric field in the electric field, and when the direction of the electric field is changed, the arrangement direction of the water molecules is also changed, so that when the water molecules and other polar molecules are in an alternating electric field, the molecular arrangement direction of the water molecules is turned over continuously along with the electric field, friction is generated, the friction of the molecules causes heat generation, and the water is quickly heated, so that the water is converted from a liquid state to a gas state.

Optionally, the case 1 includes a bottom wall 14, a top wall 15, a first side wall 16, a second side wall 17, and a back wall 18, where the bottom wall 14, the top wall 15, the first side wall 16, the second side wall 17, and the back wall 18 enclose the case 1.

Wherein, during normal use of the dryer, the bottom wall 14 is arranged opposite to the top wall 15, the bottom wall is positioned at the bottom of the dryer, and the top wall is positioned at the top of the dryer; the first and second sidewalls 16 and 17 are disposed opposite to each other, and the first and second sidewalls 16 and 17 are located at left and right sides of the dryer.

In some embodiments, the bottom wall 14 is provided with a first communication cavity 141 inside, and the bottom wall 14 is provided with a first through hole near the plate body of the clothes drying cavity 11. The top wall 15 is provided with a second communication cavity 151 inside, and the top wall 15 is provided with a second through hole on the plate body close to the clothes drying cavity 11. The air inlet of each air channel is communicated with the first communication cavity 141, and the air outlet of each air channel is communicated with the second communication cavity 151.

By the arrangement, the inner space of the bottom wall 14 and the top wall 15 can be fully utilized, so that the structure of the clothes dryer is more reasonable and compact. Meanwhile, the air supply assembly 3 sucks air from the bottom of the clothes drying cavity 11 to form air flow, and the formed air flow is re-sent into the clothes drying cavity 11 from the top of the clothes drying cavity 11, so that convection of the air flow in the clothes drying cavity 11 is facilitated, and clothes drying effect is improved. In addition, the dry air flow flows out from the top of the clothes drying cavity 11, and the dry air flow carries water vapor after passing through wet clothes, and the water vapor tends to move towards the bottom of the clothes drying cavity 11 under the action of gravity, so that the clothes which are preliminarily dried above the wet clothes can be prevented from being wetted.

Alternatively, referring to fig. 6, the first through hole is a plurality of small holes.

In some embodiments, the air supply assembly 3 includes an air suction fan 31. The suction fan 31 is disposed in the first communicating chamber 141, and can suck air from the clothes drying chamber 11 through the first through hole to form an air flow, and the formed air flow can enter the air duct.

By providing the suction fan 31 in the first communicating chamber 141, the air sucked from the inside of the clothes drying chamber 11 can be formed into an air flow, and the formed air flow can enter the air duct.

Optionally, the suction end of the suction fan 31 faces the clothes drying cavity 11, and the discharge end of the suction fan 31 faces the air duct. By this arrangement, the air can be smoothly sucked from the clothes drying chamber 11 to form an air flow, and the formed air flow can be smoothly introduced into the air duct.

Optionally, the induced draft fan is a centrifugal fan. The centrifugal fan is provided with an impeller which rotates at a high speed, so that the air suction effect is good and the air can be driven to accelerate to form air flow. In addition, the centrifugal fan has the advantages of strong applicability, low noise, stable operation, convenient maintenance and the like.

The centrifugal fan is driven fluid machinery, and the centrifugal fan is used for increasing the pressure of gas and exhausting the gas by means of input mechanical energy. The centrifugal fan is based on the principle of converting kinetic energy into potential energy, and utilizes an impeller rotating at high speed to accelerate gas, then decelerate and change flow direction, so that kinetic energy is converted into potential energy (pressure).

In some embodiments, the air supply assembly 3 further includes an air box 33, where the air box 33 is disposed at a side of the first communicating chamber 141 near the clothes drying chamber 11, and the air box 33 communicates with the clothes drying chamber 11 through the first through hole. The suction end of the air suction fan 31 is disposed inside the bellows 33, and the output end of the air suction fan 31 is disposed outside the bellows 33 and is located in the first communication cavity 141.

So set up, can keep apart the suction end and the output of induced draft fan 31, avoid induced draft fan 31 induced draft and air-out to interfere with each other, be favorable to making the gas in the dry clothing chamber 11 get into induced draft fan 31 more evenly, and can reduce induced draft fan 31's air-out loss, guarantee the amount of wind that gets into the wind channel. Meanwhile, the bellows 33 is arranged at one side of the first communicating cavity 141, which is close to the clothes drying cavity 11, so that the storage cavity in the first communicating cavity 141 is relatively airtight, and a certain protection effect can be achieved on the electric appliance in the storage cavity. For example, water or particles in the drying chamber 11 may be prevented from directly entering the storage chamber. The storage chamber refers to a portion of the first communication chamber 141 excluding the bellows 33.

In some embodiments, the air supply assembly 3 further includes an air supply fan 32. The air blower 32 is disposed in the second communicating chamber 151 and located in the second through hole, and can uniformly send the air flow in the air duct into the clothes drying chamber 11. By providing the air blower 32 in the second communicating chamber 151, the air flow in the air duct communicating with the second through hole can be uniformly fed into the clothes drying chamber 11.

In some embodiments, the blower fan 32 is a passive disturbance fan. The air suction fan 31 sucks air from the clothes drying cavity 11 to form air flow, and the formed air flow enters the air duct, so that the pressure in the clothes drying cavity 11 can be lower than the pressure in the air duct, the first communication cavity 141 and the second communication cavity 151; at the second through hole, the pressure difference between the second communicating chamber 151 and the clothes drying chamber 11 can drive the passive disturbance fan to rotate. In this way, the air flow after drying can be made to enter the drying chamber 11 more uniformly.

The passive disturbance fan does not need to be electrified, and the passive disturbance fan is driven to rotate through the pressure difference at the two sides of the passive disturbance fan.

In some embodiments, the first side wall 16 of the case 1 is provided with a first air channel 161, the second side wall 17 is provided with a second air channel 171, and the back wall 18 is provided with a third air channel 181. The air inlets of the first air channel 161, the second air channel 171 and the third air channel 181 are all communicated with the first communication cavity 141, and the air outlets of the first air channel 161, the second air channel 171 and the third air channel 181 are all communicated with the second communication cavity 151. By the arrangement, the inner space of the wall body in the box body 1 can be fully utilized, the air supply area of the air duct is increased, and the air quantity entering the clothes drying cavity 11 is improved. Meanwhile, the structure of the clothes dryer can be more compact.

In some embodiments, the heat pump module 4 includes an evaporator 41, where the evaporator 41 is disposed at an air inlet of one or more air ducts to dehumidify and dry the air flow. The evaporator 41 dries the air flow into a dry air flow, which helps to increase the drying speed. If the air flow is saturated with water vapor, the air flow cannot carry away the water vapor in the drying chamber 11, and thus the wet laundry cannot be dried.

It will be appreciated that the evaporator 41 is at a lower temperature, and the water vapor in the gas flowing through the evaporator 41 is separated from the gas by condensation, so as to dehumidify and dry the gas flow.

In some embodiments, the evaporator 41 is disposed in the first communication chamber 141. By the arrangement, the air flow can be dried before entering the air duct, so that the air duct can be prevented from being polluted, and unnecessary waste can be avoided. For example, to improve the drying effect of the air flow on wet clothes, the air flow is heated in the air duct, and if the water vapor is not separated from the air flow before entering the air duct, the water vapor in the air flow is heated while the air flow is heated, so that not only is unnecessary waste caused, but also the difficulty of later separation is increased. Meanwhile, the evaporator 41 is disposed in the first communication chamber 141 in the bottom wall 14, so that the condensed water is conveniently cleaned by a user. In addition, the provision of the evaporator 41 in the first communicating chamber 141 can also avoid occupying excessive length and width dimensions in the casing 1.

Optionally, a water pan is provided at the bottom of the first communication chamber 141. The condensate water that separates out can be collected through the water collector, the condensate water is avoided flowing to ground.

In some embodiments, the output of the suction fan 31 is directed toward the side of the evaporator 41. By this arrangement, the air flow output from the suction fan 31 directly flows through the evaporator 41, and the drying effect of the evaporator 41 on the air flow can be improved.

Alternatively, the evaporator 41 is disposed in the storage chamber in the first communication chamber 141 and connected to the output end of the suction fan 31. By this arrangement, the drying effect of the evaporator 41 on the air flow can be improved, and the interference between the air suction and the air discharge of the air suction fan 31 can be avoided.

Alternatively, the suction fan 31 is vertically disposed, and the evaporator 41 is located at the lower side of the suction fan 31. By the arrangement, the drying effect of the evaporator 41 on the air flow can be guaranteed, and meanwhile, the arrangement of the evaporator 41 and the air suction fan 31 is more reasonable, so that the size of the clothes dryer is reduced.

In some embodiments, the heat pump module 4 further includes a condenser 42, the condenser 42 being disposed in one or more of the air ducts for heating the air flow within the one or more air ducts. The condenser 42 is capable of heating the dry gas flow in the air duct to change the dry gas flow into a dry hot gas flow. The dry hot air flow has higher temperature, can heat the moisture in the wet clothes, and improves the evaporation rate of the moisture in the wet clothes; meanwhile, the dry hot air flow is drier, more water vapor can be carried, and the dry hot air flow is beneficial to accelerating and improving the clothes drying speed.

It will be appreciated that the temperature of the condenser 42 is relatively high and the dry air flow in the duct is heated to a dry air flow through the condenser 42.

In some embodiments, the condenser 42 is disposed vertically. By this arrangement, the contact area between the air flow and the condenser 42 can be increased, and the heating effect of the condenser 42 on the air flow can be improved. At the same time, the space occupied by the condenser 42 can be reduced, so that the structure of the evaporator 41 is more compact.

In some embodiments, the condenser 42 is disposed in the air duct at an end near the air outlet. By the arrangement, heat dissipation of air flow in the flowing process can be avoided, and the temperature of air flow entering the clothes drying cavity 11 can be improved.

In some embodiments, the condenser 42 is located at an upper portion of the first air channel 161 and/or the second air channel 171 and/or the third air channel 181. The space of the box body 1 can be reasonably utilized, the contact area between the air flow and the condenser 42 is increased, and the heating effect of the condenser 42 on the air flow is improved.

In some embodiments, the condenser 42 includes a first bend 421 and a second bend 422. One side of the second bending part 422 is connected with one side of the first bending part 421, and the second bending part 422 is perpendicular to the first bending part 421. The first bending portion 421 is disposed on the third air duct 181, and the second bending portion 422 is disposed on the second air duct 171 or the first air duct 161.

So set up, combine the structural feature of box 1 self and make full use of box 1's space, utilize the air current in two wind channels of condenser 42 heating, be favorable to improving the heating effect of condenser 42 to the air current and get into the wind stream temperature in dry clothing chamber 11 to be favorable to improving dry clothing efficiency.

In this embodiment, correspondingly, the solid-state power amplifier element 51 of the radio frequency module 5 may be disposed in the first air duct 161 or the second air duct 171 that is not provided with a condenser, so that the heat dissipation of the solid-state power amplifier element 51 is ensured, and the generated heat is utilized to heat the air flow.

In some embodiments, the heat pump module 4 further includes a compressor 43 and an expansion valve 44. The compressor 43 is provided in the first communication chamber 141 or the second communication chamber 151, and the expansion valve 44 is provided in the first communication chamber 141. By doing so, it is possible to avoid occupying excessive length and width dimensions in the casing 1, and at the same time, it is possible to recover the waste heat generated by the compressor 43.

Alternatively, the compressor 43 and the expansion valve 44 are both provided to the first communication chamber 141. This arrangement facilitates the arrangement of the heat pump module 4, which is advantageous in reducing the length of the piping for connecting the compressor 43 and the expansion valve 44.

In some embodiments, the radio frequency module 5 is disposed within a wall of the enclosure 1. The radio frequency module 5 is capable of emitting electromagnetic waves into the clothes drying chamber 11.

In some embodiments, the radio frequency module 5 includes a solid state power amplifier element 51 and a radio frequency radiating plate 52. The solid-state power amplifier element 51 can be controlled to generate electromagnetic wave energy, and the solid-state power amplifier element 51 is arranged outside the air duct or is arranged adjacent to an air outlet of the air duct, so that wind flow in the corresponding air duct can take away heat generated by the solid-state power amplifier element 51. The radio frequency radiation plate 52 is electrically connected with the solid-state power amplifying element 51, and the radio frequency radiation plate 52 can convert electromagnetic wave energy into electromagnetic waves and uniformly radiate the electromagnetic waves into the clothes drying cavity 11.

By this arrangement, electromagnetic waves can be emitted into the clothes drying chamber 11. Through setting the solid-state power amplifier element 51 in the air duct, or set up outside the air duct and adjacent to the air outlet of the air duct, can utilize the air current in the air duct to dispel the heat for the solid-state power amplifier element 51, guarantee the normal work of the solid-state power amplifier element 51. At the same time, the waste heat generated by the solid-state power amplifier element 51 can be used for heating the air flow, so that the temperature of the air flow is increased, and the clothes drying speed is increased.

In some embodiments, the laundry drying chamber 11 is provided with a laundry receiving area. The rf radiation plate 52 is disposed on the first side wall 16 of the case 1, and the upper end of the rf radiation plate 52 is higher than the top of the laundry accommodation area, and the lower end of the rf radiation plate 52 is lower than the bottom of the laundry accommodation area. By the arrangement, the electromagnetic wave can cover all clothes in the clothes drying cavity 11, so that uniformity of clothes drying is improved.

In some embodiments, the first side wall 16 is provided as a first glass plate adjacent to the plate body of the clothes drying chamber 11, and the radio frequency radiation plate 52 is embedded in the first glass plate. Since the rf radiating plate 52 is a metal plate, a high voltage is formed on the rf radiating plate 52 when the rf module 5 operates, so that the rf radiating plate 52 is embedded in the first glass plate to protect a user.

In some embodiments, the radio frequency module 5 further comprises a radio frequency ground plate 53. The rf ground plate 53 is disposed on the second side wall 17 of the case 1 and contacts the fins of the condenser 42 in the heat pump module 4, and the fins of the condenser 42 contact the wall of the case 1. By doing so, the radio frequency grounding plate 53 can be ensured to be well grounded.

In some embodiments, the location of the rf ground plate 53 corresponds to the location of the rf radiating plate 52. By this arrangement, the function of the radio frequency ground plate 53 can be better exhibited.

In some embodiments, the plate body of the second side wall 17 adjacent to the clothes drying cavity 11 is a second glass plate, and the radio frequency grounding plate 53 is embedded on one side of the second glass plate adjacent to the second air duct 171; the side of the second glass plate adjacent to the second air duct 171 is partially or entirely exposed to the second air duct 171. By doing so, the user can be protected, and good grounding property of the radio frequency grounding plate 53 can be ensured.

In some embodiments, the solid-state power amplifier element 51 is disposed in the second communication cavity 151 adjacent to the air outlet of the first air duct. By the arrangement, the air flow can be utilized to dissipate heat of the solid-state power amplifier element 51, normal operation of the solid-state power amplifier element 51 is guaranteed, waste heat generated by the solid-state power amplifier element 51 can be utilized to heat the air flow, and the temperature of the air flow is increased. In addition, the second communicating chamber 151 can be reasonably utilized, and excessive length and width dimensions in the case 1 can be prevented from being occupied.

Optionally, the solid-state power amplifier element 51 is disposed at the position of the second communication cavity 151 adjacent to the air outlet of the first air duct, the first bending portion 421 of the condenser 42 is disposed at the third air duct 181, and the second bending portion 422 is disposed at the second air duct 171. So set up, utilize solid-state power amplifier element 51, the first kink 421 of condenser 42, the second kink 422 of condenser 42 can heat the air current in first wind channel, third wind channel 181 and the second wind channel 171 respectively, be favorable to improving the temperature of getting into the interior air current of dry clothing chamber 11, improve the dry clothing speed.

In some embodiments, the radio frequency module 5 further comprises a circulator. The circulator is disposed at the signal emitting end of the solid-state power amplifier element 51 to prevent reflected electromagnetic wave energy from entering the signal emitting end of the solid-state power amplifier element 51. By the arrangement, reflected electromagnetic wave energy can be prevented from entering the signal emitting end of the solid-state power amplifier element 51, and the reliability of the solid-state power amplifier element 51 is improved.

For example, if no circulator is provided, the reflected electromagnetic wave energy is almost entirely returned and enters the solid state power amplifying element 51 to be converted into heat energy in a state where the clothes drying chamber 11 is empty, which has a great influence on the reliability of the solid state source.

In some embodiments, the radio frequency module 5 further comprises a matching unit 54. The matching unit 54 is disposed on the solid-state power amplifier element 51, and is configured to adjust an impedance of the radio frequency module according to the reflected power, so that electromagnetic wave energy generated by the solid-state power amplifier element 51 is matched with a cavity load.

Only if the matching between the radio frequency module 5 and the cavity load is realized, the electromagnetic waves can be guaranteed to be fully and uniformly radiated into the clothes drying cavity 11, otherwise, the electromagnetic waves can be directly reflected back to the solid-state power amplifier element 51, and the solid-state power amplifier element 51 is damaged.

The cavity load refers to the load of the clothes drying cavity 11, and the type, the number, the water content and the placement position of clothes in the clothes drying cavity 11 can influence the cavity load. The better the matching degree, the smaller the power of the reflected electromagnetic wave energy; the worse the match, the greater the power of the reflected electromagnetic wave energy.

In some embodiments, matching unit 54 includes a matching link 541, a plurality of inductors 542, and a plurality of switches 543. The matching link 541 is connected in series to the radio frequency link of the solid state power amplifying element 51. A plurality of inductors 542 are connected in series to the matching link 541. The plurality of switches 543 are in one-to-one correspondence with the inductors 542, the switches 543 are connected in parallel with the corresponding inductors 542, the corresponding inductors 542 can be short-circuited to connect out the matching link 541 by turning on the switches 543, and the corresponding inductors 542 can be connected into the matching link 541 by turning off the switches 543. By adjusting the number of inductors 542 connected to the matching link 541, the matching degree between the rf module 5 and the cavity load can be adjusted.

In some embodiments, the radio frequency module 5 further comprises a power monitoring module and a controller.

The power monitoring module is used for measuring the transmitting power and the reflecting power of the solid-state power amplifier element 51.

The signal input end of the controller is in signal connection with the power detection module so as to acquire transmitting power and reflected power; the control output end of the controller is connected with the switches 543 to control the state of each switch according to the received transmitting power and the reflected power of the solid-state power amplifier element 51, so as to adjust the matching degree between the radio frequency module 5 and the cavity load.

Wherein, the transmitting power refers to the power for generating electromagnetic wave energy; reflected power refers to the power that reflects electromagnetic wave energy.

Since the clothes drying chamber 11 can dry a plurality of clothes at the same time, when the types and the number of the clothes are different, the matching degree between the radio frequency module 5 and the chamber load is different, and in order to always have the optimal matching degree between the radio frequency module 5 and the chamber load, the matching unit 54 is added to the solid-state power amplifier element 51. When the rf module 5 starts to operate, the best matching mode is found by using the smaller transmission power and the different combinations of the switches 543 in the matching unit 54, and then the operation is performed by using the larger transmission power. Meanwhile, in the running process of the radio frequency module 5, a matching monitoring threshold is set, and when the matching monitoring threshold exceeds the threshold, the matching unit 54 is reused to adjust the matching degree, so that the normal running of the radio frequency module 5 is ensured. When the combined state of the switch 543 of the matching unit 54 is kept unchanged, as the drying of the clothes proceeds, the moisture in the clothes to be dried is reduced, which results in poor matching degree between the radio frequency module 5 and the cavity load, and by monitoring the changing process, the drying state of the clothes to be dried can be monitored, so that the intelligent control of the drying end is realized.

In some embodiments, the control output of the controller is connected to the plurality of switches 543 to control the state of each switch according to the received transmit power and the reflected power of the solid state power amplifier element 51, so as to adjust the matching degree between the rf module 5 and the cavity load, including:

when the reflected power is greater than the reflected power threshold, controlling one or more switches to be closed so as to reduce the inductance number of the access matching link 541, and obtaining a variation value of the reflected power;

under the condition that the change value of the reflected power is reduced, continuously controlling one or more switches to be closed so as to reduce the number of the inductors 542 connected into the matching link 541 until the change value of the reflected power is smaller than a preset change threshold value;

and in case that the variation value of the reflected power becomes larger, controlling one or more switches to be opened to increase the number of inductances connected to the matching link 541 until the variation value of the reflected power is smaller than a preset variation threshold.

The reflected power threshold is greater than or equal to 25% of the input power, and may be specifically adjusted according to the actual design of the matching link 541.

In some embodiments, one or more hanger bars are disposed within the drying chamber 11.

The above description and the drawings illustrate embodiments of the disclosure sufficiently to enable those skilled in the art to practice them. Other embodiments may include structural and other modifications. The embodiments represent only possible variations. Individual components and functions are optional unless explicitly required, and the sequence of operations may vary. Portions and features of some embodiments may be included in, or substituted for, those of others. The embodiments of the present disclosure are not limited to the structures that have been described above and shown in the drawings, and various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims (10)

1. A clothes dryer, comprising:

the box body is internally provided with a clothes drying cavity with an opening; one or more air channels are arranged in the wall of the box body, and the air inlet and the air outlet of each air channel are communicated with the clothes drying cavity;

the box door is arranged at the opening, can be opened to expose the clothes drying cavity and can be closed to seal the clothes drying cavity;

the air supply assembly is arranged on the box body, can suck air from the clothes drying cavity to form air flow, and can enable the formed air flow to be sent into the clothes drying cavity again through one or more air channels;

the heat pump module is arranged on the box body and can dry air flow in one or more air channels; and, a step of, in the first embodiment,

the radio frequency module is arranged in the box body and can emit electromagnetic waves into the clothes drying cavity.

2. The clothes dryer of claim 1, wherein the cabinet includes:

a bottom wall, the inside of which is provided with a first communication cavity, and a plate body, which is close to the clothes drying cavity, of which is provided with a first through hole; and, a step of, in the first embodiment,

the top wall is internally provided with a second communication cavity, and a second through hole is formed in a plate body, close to the clothes drying cavity, of the top wall;

the air inlet of the air duct is communicated with the first communication cavity, and the air outlet of the air duct is communicated with the second communication cavity.

3. The clothes dryer of claim 2 wherein the air supply assembly comprises:

the induced draft fan is arranged in the first communication cavity, can suck gas from the clothes drying cavity through the first through hole to form air flow, and the formed air flow can enter the air duct.

4. The clothes dryer of claim 3 wherein the air supply assembly further comprises:

the air box is arranged at one side of the first communication cavity, which is close to the clothes drying cavity, and is communicated with the clothes drying cavity through the first through hole;

the suction end of the air suction fan is arranged in the air box, and the output end of the air suction fan is arranged outside the air box and is positioned in the first communication cavity.

5. The clothes dryer of claim 3, wherein,

the induced draft fan is a centrifugal fan.

6. The clothes dryer of claim 3 wherein the air supply assembly further comprises:

the air supply fan is arranged in the second communication cavity and positioned in the second through hole, and can uniformly send the air flow in the air duct into the clothes drying cavity.

7. The clothes dryer of claim 6, wherein,

the air supply fan is a passive disturbance fan;

the air suction fan sucks air from the clothes drying cavity to form air flow, and the formed air flow enters the air duct, so that the pressure in the air duct is higher than the pressure in the clothes drying cavity; and at the second through hole, the pressure difference between the air duct and the clothes drying cavity can drive the passive disturbance fan to rotate.

8. The clothes dryer of claim 7 wherein the cabinet further comprises:

the first side wall is provided with a first air duct;

the second side wall is provided with a second air duct; and, a step of, in the first embodiment,

the back wall is provided with a third air duct;

the air inlets of the first air channel, the second air channel and the third air channel are communicated with the first communication cavity; and air outlets of the first air channel, the second air channel and the third air channel are communicated with the second communication cavity.

9. The clothes dryer according to any one of claims 2 to 8, characterized in that,

the bottom of the first communication cavity is provided with a water receiving disc.

10. The clothes dryer according to any one of claims 2 to 8, characterized in that,

one or more clothes hanging rods are arranged in the clothes drying cavity.