CN111197258B

CN111197258B - Control method and control device of dryer and dryer

Info

Publication number: CN111197258B
Application number: CN201811277741.9A
Authority: CN
Inventors: 李冬; 郝世龙; 劳春峰; 张力潇
Original assignee: Qingdao Haier Smart Technology R&D Co Ltd; Haier Smart Home Co Ltd
Current assignee: Qingdao Haier Smart Technology R&D Co Ltd; Haier Smart Home Co Ltd
Priority date: 2018-10-30
Filing date: 2018-10-30
Publication date: 2022-10-28
Anticipated expiration: 2038-10-30
Also published as: CN111197258A

Abstract

The invention discloses a control method and a control device of a dryer and the dryer, and belongs to the technical field of drying. The dryer includes a first plate and a second plate for transmitting radio frequency, the method comprising: acquiring the radio frequency absorption degree of the articles to be dried; and adjusting the distance between the first polar plate and the second polar plate or controlling the first polar plate to emit radio frequency according to the radio frequency absorption degree of the articles to be dried. According to the invention, the distance between the first polar plate and the second polar plate is adjusted according to the radio frequency absorption degree of the articles to be dried, or the first polar plate is controlled to emit radio frequency, so that the radio frequency absorption degree of the articles to be dried can be adjusted to a proper state aiming at different articles to be dried, thereby improving the drying efficiency of the dryer.

Description

Control method and control device of dryer and dryer

Technical Field

The invention relates to the technical field of drying, in particular to a control method and a control device of a dryer and the dryer.

Background

The dryer dries the articles in a radio frequency mode, a hot air mode and the like, wherein the radio frequency drying efficiency is high, damage to the dried articles is small, and the application is wide. The current radio frequency dryer is used for fixing the position of a polar plate for transmitting radio frequency, so that different articles can not be absorbed by proper radio frequency, and the drying efficiency is to be improved.

Disclosure of Invention

The embodiment of the invention provides a control method and a control device of a dryer and the dryer, wherein a first polar plate and a second polar plate for transmitting radio frequency are adjusted according to the radio frequency absorption degree of articles to be dried, so that the radio frequency absorption degree of the articles to be dried is proper, and the drying efficiency is improved. 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. Its sole purpose is to present some concepts in a simplified form as a prelude to the more detailed description that is presented later.

According to a first aspect of embodiments of the present invention, there is provided a method of controlling a dryer including a first pad and a second pad for transmitting radio frequency, the method comprising: acquiring the radio frequency absorption degree of the articles to be dried; and adjusting the distance between the first polar plate and the second polar plate or controlling the first polar plate to emit radio frequency according to the radio frequency absorption degree of the articles to be dried.

In some optional embodiments, the acquiring the degree of absorption of the radio frequency by the articles to be dried includes: transmitting a first signal to the articles to be dried through the first polar plate to obtain a second signal reflected from the articles to be dried; and determining the absorption degree of the articles to be dried on the radio frequency according to the ratio of the power of the second signal to the power of the first signal.

In some alternative embodiments, the power of the first signal is a,0 < a < 10W.

In some optional embodiments, the adjusting the distance between the first plate and the second plate according to the absorption degree of the drying object to the radio frequency, or the controlling the first plate to emit the radio frequency comprises: judging whether the radio frequency absorption degree of the articles to be dried reaches a preset condition or not based on the radio frequency absorption degree of the articles to be dried; when the radio frequency absorption degree of the articles to be dried does not reach a preset condition, adjusting the distance between the first polar plate and the second polar plate; and when the absorption degree of the articles to be dried on the radio frequency reaches a preset condition, controlling the first polar plate to emit the radio frequency.

In some optional embodiments, the control method further comprises: acquiring the humidity degree of an article to be dried; and controlling the first polar plate to stop transmitting radio frequency according to the humidity degree of the articles to be dried.

In some optional embodiments, said controlling the first plate to stop emitting the radio frequency according to the humidity level of the articles to be dried includes: controlling the first plate to stop transmitting the radio frequency when the humidity reaches 15-30% RH.

According to a second aspect of embodiments of the present invention, there is provided a control apparatus of a dryer including a first pad and a second pad for transmitting radio frequency, the control apparatus comprising: the first acquisition unit is used for acquiring the radio frequency absorption degree of the articles to be dried; and the first control unit is used for controlling and adjusting the distance between the first polar plate and the second polar plate or controlling the first polar plate to emit radio frequency according to the radio frequency absorption degree of the articles to be dried.

In some optional embodiments, the control device further comprises: the second acquiring unit is used for acquiring the humidity degree of the articles to be dried; and the second control unit is used for controlling the first polar plate to stop transmitting the radio frequency according to the humidity degree of the articles to be dried.

According to a third aspect of the embodiments of the present invention, there is provided a dryer, including a casing, a first polar plate and a second polar plate for transmitting radio frequency are disposed inside the casing, a space for placing an article to be dried is formed between the first polar plate and the second polar plate, the casing further includes a distance adjusting device and a support frame, the distance adjusting device is configured to adjust a distance between the first polar plate and the second polar plate, the support frame is fixedly disposed inside the casing, and the support frame is configured to suspend the article to be dried.

In some optional embodiments, the distance adjusting device comprises a driving mechanism, and the driving mechanism is used for driving the first polar plate or the first polar plate and the second polar plate to move so as to adjust the distance between the first polar plate and the second polar plate.

The technical scheme provided by the embodiment of the invention has the following beneficial effects:

according to the invention, the distance between the first polar plate and the second polar plate is adjusted according to the radio frequency absorption degree of the articles to be dried, or the first polar plate is controlled to emit radio frequency, so that the radio frequency absorption degree of the articles to be dried can be adjusted to a proper state aiming at different articles to be dried, thereby improving the drying efficiency of the dryer.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the invention, as claimed.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention.

Fig. 1 is a schematic view illustrating a structure of a dryer according to an exemplary embodiment;

fig. 2 is a schematic view illustrating a structure of a dryer according to another exemplary embodiment;

fig. 3 is a schematic view illustrating a structure of a dryer according to another exemplary embodiment;

fig. 4 is a schematic view illustrating a structure of a dryer according to another exemplary embodiment;

FIG. 5 is an enlarged view of portion A of FIG. 1;

FIG. 6 is a schematic diagram illustrating a combination of a first screw, a first plate, and a second plate according to an exemplary embodiment;

FIG. 7 is a schematic diagram showing a combination of a first screw, a first plate, and a second plate according to another exemplary embodiment;

fig. 8 is a flowchart illustrating a control method of a dryer according to an exemplary embodiment;

fig. 9 is a flowchart illustrating a control method of a dryer according to another exemplary embodiment;

fig. 10 is a flowchart illustrating a control method of a dryer according to another exemplary embodiment;

fig. 11 is a flowchart illustrating a control method of a dryer according to another exemplary embodiment;

fig. 12 is a schematic configuration diagram illustrating a control apparatus of a dryer according to an exemplary embodiment;

fig. 13 is a schematic configuration diagram illustrating a control apparatus of a dryer in accordance with another exemplary embodiment.

In the figure, 1, a housing; 11. a first electrode plate; 12. a second polar plate; 13. clothing; 14. an air inlet; 15. an air outlet; 2. a distance adjusting device; 201. a first cylinder; 202. a first piston rod; 203. a second cylinder; 204. a second piston rod; 210. a motor; 211. a first screw; 2110. a first rod portion; 2111. a first threaded portion; 2112. a second threaded portion; 212. a second screw; 23. a guide structure; 24. a coupling; 25. a first support base; 26. a second support seat; 27. a support frame; 3. a power source; 4. a hot air module; 500. a control device; 510. a first acquisition unit; 520. a first control unit; 530. a second acquisition unit; 540. a second control unit.

Detailed Description

The following description and the drawings sufficiently illustrate specific embodiments of the invention to enable those skilled in the art to practice them. Other embodiments may incorporate structural, logical, electrical, process, and other changes. The examples merely typify 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 scope of embodiments of the invention encompasses the full ambit of the claims, as well as all available equivalents of the claims. Embodiments may be referred to, individually or collectively, herein by the term "invention" merely for convenience and without intending to voluntarily limit the scope of this application to any single invention or inventive concept if more than one is in fact disclosed.

The terms "first," "second," and the like, herein are used solely to distinguish one element from another without requiring or implying any actual such relationship or order between such elements. In practice, a first element can also be referred to as a second element, and vice versa. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, or apparatus. Without further limitation, an element defined by the phrases "comprising a," "8230," "8230," or "comprising" does not exclude the presence of additional like elements in a process, method, or apparatus comprising the element. The embodiments are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. As for the method, the product and the like disclosed in the embodiment, the description is simple because the method corresponds to the method part disclosed in the embodiment, and the relevant parts can be referred to the method part for description.

The terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like herein, as used herein, are defined as orientations or positional relationships based on the orientation or positional relationship shown in the drawings, and are used for convenience in describing and simplifying the description, but do not indicate or imply that the device or element being 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. In the description herein, unless otherwise specified and limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may include, for example, mechanical or electrical connections, communications between two elements, direct connections, and indirect connections via intermediary media, where the specific meaning of the terms is understood by those skilled in the art as appropriate.

Herein, the term "plurality" means two or more, unless otherwise specified.

Herein, the character "/" indicates that the preceding and following objects are in an "or" relationship. For example, A/B represents: a or B.

Herein, the term "and/or" is an associative relationship describing objects, meaning that three relationships may exist. E.g., a and/or B, represents: a or B, or A and B.

Fig. 1 is a schematic view illustrating a structure of a dryer according to an exemplary embodiment.

As shown in fig. 1, a dryer includes a casing 1, a first polar plate 11 and a second polar plate 12 for transmitting radio frequency are disposed inside the casing 1, a space for placing articles to be dried is formed between the first polar plate 11 and the second polar plate 12, the casing 1 further includes a distance adjusting device 2 therein, and the distance adjusting device 2 is used for adjusting a distance between the first polar plate 11 and the second polar plate 12.

In this embodiment, the distance adjusting device 2 adjusts the distance between the first polar plate 11 and the second polar plate 12, and then changes the distance between the article to be dried and the first polar plate 11 and the second polar plate 12, so as to adjust the radio frequency absorption degree of different articles to be dried to a suitable state, thereby improving the drying efficiency of the dryer.

Optionally, the first plate 11 is used for transmitting radio frequencies and the second plate 12 is used for receiving radio frequencies.

Alternatively, the pitch device 2 is disposed on the upper portions of the first and

second electrode plates

11 and 12.

The articles to be dried can be clothes 13, the clothes 13 are placed in the space, the first polar plate 11 emits radio frequency, the clothes 13 receive the radio frequency, water molecules on the clothes 13 do polar motion under the action of a high-frequency electric field, and collide violently in the clothes 13, so that evaporation of the water molecules is accelerated, and the clothes 13 are dried quickly. Optionally, a support frame 27 is further included, the support frame 27 is fixedly disposed in the housing 1, and the support frame 27 is used for hanging articles to be dried, such as the clothes 13. The clothes 13 are hung on the supporting frame 27 through the hooks. The area for receiving the radio frequency is increased in the hanging state of the laundry 13, which is advantageous for receiving the radio frequency. Alternatively, the support bracket 27 is provided at an upper portion of the housing 1.

Optionally, the distance-adjusting device 2 comprises a driving mechanism for driving the first polar plate 11, or the first polar plate 11 and the second polar plate 12 to move, so as to adjust the distance between the first polar plate 11 and the second polar plate 12.

As shown in fig. 2, the driving mechanism includes: the first air cylinder 201 and the first piston rod 202, the first air cylinder 201 is fixedly arranged in the shell 1; one end of the first piston rod 202 is connected to the piston inside the first cylinder 201, and the other end is connected to the first plate 11. Alternatively, the second plate 12 is fixedly arranged within the housing 1. In this embodiment, the first cylinder 201 drives the first piston rod 202 to perform a telescopic motion, so as to drive the first pole plate 11 to approach or depart from the second pole plate 12.

Optionally, as shown in fig. 3, the driving mechanism further includes a second air cylinder 203 and a second piston rod 204, the second air cylinder 203 is fixedly disposed inside the housing 1; one end of the second piston rod 204 is connected to the piston inside the second cylinder 203, and the other end is connected to the second pole plate 12. In this embodiment, the first cylinder 201 drives the first piston rod 202 to move telescopically, and the second cylinder 203 drives the second piston rod 204 to move telescopically, so that the first pole plate 11 and the second pole plate 12 move closer to and away from each other.

As shown in fig. 4, the drive mechanism includes: the first screw 211 penetrates through the first polar plate 11; the motor 210 is connected with the first screw 211, and the motor 210 is used for driving the first screw 211 to rotate; a guide structure 23 connected to the housing 1 and guiding movement of the first electrode plate 11; the first motor 210 drives the first screw 211 to rotate forward/backward to move the first pole plate 11 closer to or away from the second pole plate 12.

In this embodiment, the motor 210 drives the first screw 211 to rotate, so that the first polar plate 11 moves along the guide structure 23, when the first screw 211 rotates in the forward direction, the first polar plate 11 approaches the second polar plate 12, and when the first screw 211 rotates in the reverse direction, the first polar plate 11 moves away from the second polar plate 12. Thus, the dryer can adjust the distance between the two polar plates in a smaller space.

Optionally, as shown in fig. 5, the driving mechanism further includes: the second screw 212 penetrates through the second polar plate 12, the second screw 212 is connected with the first screw 211, the thread directions of the second screw 212 and the first screw 211 are opposite, and the guide structure 23 guides the movement of the second polar plate 12; the motor 210 drives the first screw 211 to rotate forward/backward to move the first and

second pole plates

11 and 12 closer to or farther from each other.

In this embodiment, the first screw 211 rotates to drive the second screw 212 to rotate, so that the second pole plate 12 moves along the guiding structure 23, because the thread direction is opposite, the moving direction of the second pole plate 12 is opposite to that of the first pole plate 11, when the first screw 211 rotates in the forward direction, the second pole plate 12 is close to the first pole plate 11, and when the first screw 211 rotates in the reverse direction, the second pole plate 12 is far away from the first pole plate 11.

Optionally, the first screw 211 and the second screw 212 are connected by a coupling 24.

Optionally, the device further comprises a first supporting seat 25, and the first supporting seat 25 is fixedly arranged in the housing 1 and is sleeved on the first screw 211.

Alternatively, the number of the first supporting seats 25 is two, and the first supporting seats are respectively sleeved on the first screw 211 and the second screw 212.

Alternatively, the two first supporting seats 25 are respectively sleeved at the ends of the first screw 211 and the second screw 212 which are close to each other.

Optionally, the first supporting seat 25 is fixedly connected with the supporting frame 27.

Optionally, the device further comprises a second supporting seat 26, and the second supporting seat 26 is fixedly disposed in the casing 1 and is sleeved on the first screw 211.

Optionally, the number of the second supporting seats 26 is two, and the two second supporting seats are respectively sleeved on the ends, away from each other, of the first screw 211 and the second screw 212.

The first and second supporting

seats

25 and 26 make the rotation of the first and

second screws

211 and 212 more stable.

In one embodiment of the present invention, as shown in fig. 6, the first screw 211 is further inserted through the second plate 12. The first screw 211 includes a first screw portion 2111 and a second screw portion 2112 connected to each other, the first screw portion 2111 and the second screw portion 2112 are opposite in screw direction, the first screw portion 2111 is inserted into the first pole plate 11, and the second screw portion 2112 is inserted into the second pole plate 12. When the first screw 211 is rotated in the forward direction, the first pole plate 11 and the second pole plate 12 are close to each other, and when the first screw 211 is rotated in the reverse direction, the first pole plate 11 and the second pole plate 12 are far from each other.

In one embodiment of the present invention, as shown in fig. 7, the first screw 211 is further inserted through the second plate 12. The first screw 211 includes a first rod portion 2110 and a second screw portion 2112 connected to each other, the first rod portion is inserted into the first pole plate 11, and the second screw portion 2112 is inserted into the second pole plate 12. The first rod 2110 has no thread, and when the first screw 211 is rotated in a forward direction, the second plate 12 is close to the first plate 11, and when the first screw 211 is rotated in a reverse direction, the second plate 12 is far from the first plate 11. Therefore, the dryer is convenient to control and adjust the distance between the two polar plates.

Optionally, the guiding structure 23 is rod-shaped and penetrates the first plate 11 and the second plate 12. The first plate 11 and the second plate 12 move along the guide structure 23.

Optionally, two guiding structures 23 are provided, and both penetrate through the first polar plate 11 and the second polar plate 12. In this way, not only the movement of the first pole plate 11 and the second pole plate 12 is more stabilized, but also the first pole plate 11 and the second pole plate 12 can be restricted from rotating following the rotation of the first screw 211 and the second screw 212.

In some alternative embodiments, as shown in fig. 1, the surface of the housing 1 is further provided with an air inlet 14 and an air outlet 15. Alternatively, the intake vent 14 is provided at a lower portion of the housing 1, and the outlet vent 15 is provided at an upper portion of the housing 1. Optionally, a humidity detection device is further disposed inside the casing 1 for detecting the humidity level of the articles to be dried. The humidity detection means may be a second acquisition unit. The humidity detection device may be disposed at the air outlet 15.

Optionally, a power supply 3 is also provided inside the housing 1. The power supply 3 is for supplying power.

Optionally, a hot air module 4 is further disposed inside the housing 1, and the hot air module 4 is used for blowing out hot air. The hot air module 4 can accelerate the drying of the articles to be dried. Optionally, a radio frequency module is further disposed inside the casing 1, and the radio frequency module is configured to generate radio frequency, transmit through the first pole plate 11, and be received by the second pole plate 12 and the articles to be dried.

Fig. 8 is a flowchart illustrating a control method of a dryer according to an exemplary embodiment.

As shown in fig. 8, a control method of a dryer including a first pad and a second pad for transmitting radio frequency, the method comprising the steps of:

s101, acquiring the radio frequency absorption degree of an article to be dried;

s102, adjusting the distance between the first polar plate and the second polar plate according to the radio frequency absorption degree of the articles to be dried, or controlling the first polar plate to emit radio frequency.

In this embodiment, the absorption degree of the articles to be dried on the radio frequency is obtained, so as to determine whether the distance between the articles to be dried and the polar plate is appropriate, if not, the distance between the first polar plate and the second polar plate is adjusted, and if so, the first polar plate is controlled to emit the radio frequency, so as to perform radio frequency drying on the articles. Wherein, the radio frequency drying power emitted by the first polar plate is controlled to be 200W-1500W. In practical application scenarios, the radio frequency clothes dryer can adopt the control method to dry clothes.

Optionally, the first electrode plate is controlled to emit radio frequency, and the hot air module is controlled to blow hot air.

Optionally, as shown in fig. 9, the obtaining of the degree of absorption of the radio frequency by the articles to be dried includes:

s201, transmitting a first signal to the to-be-dried object through a first polar plate to obtain a second signal reflected from the to-be-dried object;

s202, determining the radio frequency absorption degree of the articles to be dried according to the ratio of the power of the second signal to the power of the first signal.

In this embodiment, the first signal is partially absorbed by the articles to be dried, and partially reflected back as the second signal, and the degree of absorption of the articles to be dried on the radio frequency can be known by detecting the power of the second signal and comparing the power of the first signal with the power of the second signal.

Alternatively, as shown in fig. 10, adjusting the distance between the first plate and the second plate or controlling the first plate to emit radio frequency according to the degree of absorption of radio frequency by the articles to be dried includes:

s301, judging whether the radio frequency absorption degree of the to-be-dried articles reaches a preset condition or not based on the radio frequency absorption degree of the to-be-dried articles;

s302, when the radio frequency absorption degree of the articles to be dried does not reach a preset condition, adjusting the distance between the first polar plate and the second polar plate;

s303, when the radio frequency absorption degree of the articles to be dried reaches a preset condition, controlling the first polar plate to emit radio frequency.

The power ratio of the second signal to the first signal is k, and the absorption degree of the articles to be dried on the radio frequency depends on the value of k. Optionally, the preset condition is that k is greater than or equal to 0 and less than 0.3. When the k value is within the range, the absorption degree of the articles to be dried on the radio frequency reaches a preset condition, which indicates that the distance between the articles to be dried and the polar plate is proper, and the first polar plate can be controlled to emit the radio frequency to dry the articles; when the k value does not belong to the range, the absorption degree of the articles to be dried to the radio frequency does not reach the preset condition, which indicates that the distance between the articles to be dried and the polar plate is not appropriate, and the distance between the first polar plate and the second polar plate needs to be adjusted again. When k is greater than 0.3, the distance between the first plate and the second plate needs to be reduced.

Optionally, the power of the first signal is a,0 < a < 10W. Therefore, the radio frequency absorption degree of the articles to be dried can be detected.

Optionally, the first plate is controlled to transmit radio frequency, and after the radio frequency transmitting time reaches a preset time, the steps S101 and S102 are repeated again. Because the moisture contained in the articles to be dried can also influence the absorption degree of the articles to the radio frequency, after the articles are dried for a certain time, the absorption degree of the articles to the radio frequency is obtained again, and the first polar plate and the second polar plate are subjected to distance adjustment, so that the articles are suitable for the absorption degree of the radio frequency, and the drying efficiency is improved.

Optionally, the preset time is T, and T is more than 1min and less than 10min.

Fig. 11 is a flowchart illustrating a control method of a dryer according to another exemplary embodiment.

As shown in fig. 11, the control method further includes:

s401, acquiring the humidity degree of the to-be-dried object;

s402, controlling the first polar plate to stop emitting radio frequency according to the humidity degree of the articles to be dried.

Optionally, the acquiring of the humidity level of the articles to be dried includes detecting the humidity of the air inside the casing by a humidity detecting device.

Alternatively, controlling the first plate to cease transmitting radio frequency according to the moisture level of the articles to be dried includes controlling the first plate to cease transmitting radio frequency when the Humidity reaches 15-30% rh (Relative Humidity).

In this embodiment, the humidity level of the articles to be dried can be known by detecting the humidity of the air inside the casing. The humidity detection means may be a second acquisition unit. Optionally, the second obtaining unit is disposed at the air outlet. Adopt this embodiment, can be according to the humidity degree of waiting to dry article, the stopping of control radio frequency if set up hot-blast module in the casing, can only adopt hot-blast module to carry out hot-blast drying after stopping transmitting the radio frequency, if not set up hot-blast module in the casing, can air-dry naturally after stopping transmitting the radio frequency. Therefore, excessive radio frequency emission is avoided, and energy consumption is reduced.

Fig. 12 is a schematic configuration diagram illustrating a control apparatus of a dryer according to an exemplary embodiment.

As shown in fig. 12, a control apparatus of a dryer including a first pad and a second pad for transmitting radio frequency, the control apparatus 500 includes: a first obtaining unit 510, configured to obtain a radio frequency absorption degree of an article to be dried; the first control unit 520 is used for controlling and adjusting the distance between the first polar plate and the second polar plate or controlling the first polar plate to emit radio frequency according to the absorption degree of the radio frequency by the articles to be dried.

Optionally, the first obtaining unit 510 is specifically configured to transmit a first signal to the to-be-dried object through the first pole plate, so as to obtain a second signal reflected from the to-be-dried object; and determining the absorption degree of the articles to be dried to the radio frequency according to the ratio of the power of the second signal to the power of the first signal.

Optionally, the first control unit 520 is specifically configured to determine whether the degree of absorption of the radio frequency by the article to be dried reaches a preset condition based on the degree of absorption of the radio frequency by the article to be dried; when the radio frequency absorption degree of the articles to be dried does not reach a preset condition, adjusting the distance between the first polar plate and the second polar plate; and when the radio frequency absorption degree of the articles to be dried reaches a preset condition, controlling the first polar plate to emit radio frequency.

In this embodiment, the control device obtains the radio frequency absorption degree of the article to be dried through the first obtaining unit 510, and the first control unit 520 controls and adjusts the distance between the first polar plate and the second polar plate according to the absorption degree, or controls the first polar plate to emit radio frequency, so as to dry the article to be dried, thereby enabling the distance between the article to be dried and the first polar plate and the distance between the article to be dried and the second polar plate to be appropriate, and being capable of adjusting the radio frequency absorption degree of different articles to be dried to an appropriate state, so as to improve the drying efficiency of the dryer.

As shown in fig. 13, the control device 500 further includes: a second acquiring unit 530 for acquiring a humidity level of the article to be dried; and a second control unit 540, configured to control the first plate to stop emitting the radio frequency according to the moisture level of the article to be dried.

In this embodiment, the control device 500 obtains the humidity level of the article to be dried through the second obtaining unit 530, and the second control unit 540 controls the first electrode plate to stop emitting the radio frequency according to the humidity level, so that when the article to be dried approaches to be dry, the article can be dried only in a hot air drying or natural air drying manner, thereby reducing energy consumption.

Alternatively, the first plate is controlled to stop transmitting the radio frequency when the humidity detected by the second acquisition unit reaches 15-30% RH.

In the embodiments disclosed herein, it should be understood that the disclosed methods, products, including but not limited to devices, apparatuses, etc., may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, a division of a mechanism or a component is merely a division of a logical function, and an actual implementation may have another division, for example, a plurality of mechanisms or components may be combined or integrated into another system, or some features may be omitted. The mechanisms or components described as separate parts may or may not be physically separate, and the parts displayed as the mechanisms or components may or may not be physical mechanisms or components, may be located in one place, or may be distributed on a plurality of network mechanisms or components. Some or all of the mechanisms or components can be selected according to actual needs to achieve the purpose of the solution of the embodiment. In addition, each functional mechanism or component in each embodiment of the present invention may be integrated into one processing mechanism or component, each mechanism or component may exist alone physically, or two or more mechanisms or components may be integrated into one mechanism or component.

The present invention is not limited to the structures that have been described above and shown in the drawings, and various modifications and changes can be made without departing from the scope thereof. The scope of the invention is limited only by the appended claims.

Claims

1. A control method of a dryer comprises a first polar plate and a second polar plate for transmitting radio frequency, and is characterized in that a space for placing articles to be dried is formed between the first polar plate and the second polar plate, the articles to be dried are clothes, and the clothes are hung in the space; the method comprises the following steps:

acquiring the radio frequency absorption degree of the articles to be dried;

adjusting the distance between the first polar plate and the second polar plate according to the absorption degree of the articles to be dried on the radio frequency, or controlling the first polar plate to emit the radio frequency;

after the radio frequency emitting time reaches the preset time, adjusting the distance between the first polar plate and the second polar plate again according to the radio frequency absorption degree of the articles to be dried;

acquiring the humidity degree of the articles to be dried;

and when the relative humidity range of the articles to be dried is 15% -30%, controlling the first polar plate to stop emitting radio frequency, and only adopting a hot air module to carry out hot air drying after the radio frequency emission is stopped.

2. The control method according to claim 1, wherein the obtaining of the radio frequency absorption degree of the articles to be dried comprises:

transmitting a first signal to the articles to be dried through the first polar plate to obtain a second signal reflected from the articles to be dried;

and determining the absorption degree of the articles to be dried on the radio frequency according to the ratio of the power of the second signal to the power of the first signal.

3. The control method of claim 2, wherein the power of the first signal is a,0 < a < 10W.

4. The control method of claim 1, wherein the adjusting the distance between the first plate and the second plate according to the degree of absorption of the radio frequency by the articles to be dried, or the controlling the first plate to emit the radio frequency comprises:

judging whether the radio frequency absorption degree of the articles to be dried reaches a preset condition or not based on the radio frequency absorption degree of the articles to be dried;

when the radio frequency absorption degree of the articles to be dried does not reach a preset condition, adjusting the distance between the first polar plate and the second polar plate;

and when the radio frequency absorption degree of the articles to be dried reaches a preset condition, controlling the first polar plate to emit radio frequency.

5. A control device of a dryer comprises a first polar plate and a second polar plate for transmitting radio frequency, and is characterized in that a space for placing articles to be dried is formed between the first polar plate and the second polar plate, the articles to be dried are clothes, and the clothes are hung in the space; the control device includes:

the first acquisition unit is used for acquiring the radio frequency absorption degree of the articles to be dried;

the first control unit is used for controlling and adjusting the distance between the first polar plate and the second polar plate or controlling the first polar plate to emit radio frequency according to the radio frequency absorption degree of the articles to be dried;

the first control unit is further configured to: after the radio frequency emitting time reaches the preset time, adjusting the distance between the first polar plate and the second polar plate again according to the radio frequency absorption degree of the articles to be dried; acquiring the humidity degree of an article to be dried; and when the relative humidity range of the articles to be dried is 15% -30%, controlling the first polar plate to stop emitting radio frequency, and only adopting a hot air module to carry out hot air drying after the radio frequency emission is stopped.

6. The control device according to claim 5, characterized by further comprising:

the second acquisition unit is used for acquiring the humidity degree of the articles to be dried;

and the second control unit is used for controlling the first polar plate to stop transmitting the radio frequency according to the humidity degree of the articles to be dried.

7. A dryer comprises a shell, wherein a first polar plate and a second polar plate for transmitting radio frequency are arranged in the shell, and a space for placing articles to be dried is formed between the first polar plate and the second polar plate; the shell is internally provided with a distance adjusting device and a support frame, the distance adjusting device is used for adjusting the distance between the first polar plate and the second polar plate, the support frame is fixedly arranged in the shell, and the support frame is used for hanging articles to be dried;

the control method of the dryer includes:

acquiring the radio frequency absorption degree of the articles to be dried;

adjusting the distance between the first polar plate and the second polar plate according to the radio frequency absorption degree of the articles to be dried, or controlling the first polar plate to emit radio frequency;

after the radio frequency emission time reaches the preset time, adjusting the distance between the first polar plate and the second polar plate again according to the radio frequency absorption degree of the articles to be dried;

acquiring the humidity degree of an article to be dried;

8. The dryer of claim 7, wherein the distance adjusting device comprises a driving mechanism for driving the first polar plate or the first polar plate and the second polar plate to move so as to adjust the distance between the first polar plate and the second polar plate.