Clothes drying rack, clothes dryer and control method

Abstract

The present invention provides a clothes drying rack, a clothes dryer, and a control method, which relate to the technical field of clothes dryers and solve the technical problem of poor uniformity in clothes drying. The clothes drying rack includes a clothes hanger placed in a confined space, the clothes hanger is a hollow structure with an air flow cavity inside; the clothes hanger is provided with a plurality of vents connected to the air flow cavity; and also includes a suction component, one end of the suction component is connected to the air flow cavity, and the other end is connected to the confined space, and a negative pressure environment can be formed in the air flow cavity through the suction component. The present invention uses the suction component to draw negative pressure into the air flow cavity, so that the hot air in the confined space will enter the inside of the clothes hanger through the vents, and then be sent back to the confined space by the suction component. This form of hot air circulation allows the clothes on the clothes hanger to be evenly heated and dried, ensuring the uniformity of drying.

Description

Technical Field

[0001] The present invention relates to the technical field of clothes dryers, and in particular to a clothes drying rack, a clothes dryer and a control method. Background Art

[0002] Hot air clothes dryers are common household appliances. Their main principle is to accelerate the evaporation of moisture from clothes through convection and radiation, achieving the goal of rapid drying. Due to their relatively simple structure and effective drying effect, they are very popular among consumers.

[0003] The dryer consists of two parts: a clothes hanger and a dryer. The working process is that the dryer is placed under the clothes hanger, and the clothes are hung on the hanger. The high-temperature steam from the dryer flows through the surface of the clothes on the hanger, heating the clothes and taking away the evaporated moisture on the clothes.

[0004] The applicant has discovered that the prior art has at least the following technical problems:

[0005] During the clothes drying process, due to the poor air flow at the contact point between the clothes hanger and the clothes, the drying speed is slower than other places, and the drying uniformity cannot be guaranteed. Summary of the Invention

[0006] The object of the present invention is to provide a clothes drying rack, a clothes dryer and a control method to solve the technical problem of poor clothes drying uniformity existing in the prior art.

[0007] To achieve the above objectives, the present invention provides the following technical solutions:

[0008] In a first aspect, the present invention provides a clothes drying rack, comprising a clothes hanger placed in a confined space, wherein the clothes hanger is a hollow structure and has an air flow cavity inside; the clothes hanger is provided with a plurality of ventilation holes connected to the air flow cavity; and the clothes hanger also comprises a suction component, wherein one end of the suction component is connected to the air flow cavity and the other end is connected to the confined space, and a negative pressure environment can be formed in the air flow cavity through the suction component.

[0009] The clothes drying rack provided by the present invention has an air flow cavity inside the clothes hanger by arranging a clothes hanger and a suction component, which can provide air flow circulation; and vents are provided on the clothes hanger, through which hot air can enter the air flow cavity; the suction component is used to apply negative pressure to the air flow cavity, so that the hot air in the enclosed space can enter the interior of the clothes hanger through the vents, and then be sent back to the enclosed space by the suction component. This form of hot air circulation enables the clothes on the clothes hanger to be evenly heated and dried, thereby ensuring the uniformity of drying.

[0010] As a further improvement of the present invention, the clothes hanger comprises a hook portion and a clothes hanging portion, the air flow cavities of the hook portion and the clothes hanging portion are communicated with each other; and the ventilation holes are arranged partially or entirely along the clothes hanging portion.

[0011] By arranging ventilation holes around the entire circle of the clothes hanger, air circulation is formed around the entire circle of the clothes hanger, thereby enhancing the drying effect of the folds of the clothes.

[0012] As a further improvement of the present invention, the ventilation holes are located on the outer circle and / or inner circle of the clothes hanging portion.

[0013] As a further improvement of the present invention, the suction component includes a clothesline and a clothesline fan; the clothesline is a hollow structure with an exhaust cavity inside; the clothesline is also provided with an exhaust inlet and an exhaust outlet connected to the exhaust cavity; the clothesline fan is arranged in the exhaust cavity; the clothes hanger is hung at the exhaust inlet position of the clothesline to achieve communication between the air flow cavity of the clothes hanger and the exhaust cavity.

[0014] As a further improvement of the present invention, the air extraction inlet is provided with an openable and closable cover.

[0015] As a further improvement of the present invention, there are several air extraction inlets, which are arranged at intervals along the axial direction of the clothes drying rod.

[0016] As a further improvement of the present invention, the clothes hanger has a hook portion, the end of the hook portion is an open structure; the hook portion is inserted into the air extraction inlet in an interference fit manner.

[0017] By adopting a detachable connection structure, a clothes drying pole fan can simultaneously drive the air ducts of multiple clothes hangers to perform suction-type internal circulation drying, simplifying the structure and reducing energy consumption.

[0018] As a further improvement of the present invention, a clothes-drying rod sealing ring is further provided at the air extraction inlet.

[0019] As a further improvement of the present invention, the suction assembly further includes a pressure sensor; and / or a temperature sensor.

[0020] In a second aspect, the present invention provides a clothes dryer comprising a clothes cover forming an enclosed space, the clothes drying rack disposed in the clothes cover, and a clothes drying assembly disposed at the bottom of the clothes cover for drying clothes.

[0021] As a further improvement of the present invention, the clothes drying assembly includes a hot air chamber, a hot air blower, and a heating element; the two ends of the hot air chamber are respectively provided with an air supply port and a hot air blower inlet connected to the enclosed space and the external environment; the hot air blower and the heating element are arranged in the hot air chamber in sequence.

[0022] As a further improvement of the present invention, it also includes an air outlet arranged on the top of the clothes cover, and an openable and closable air outlet baffle is provided at the air outlet; and / or an openable and closable air inlet baffle is provided at the bottom of the clothes cover corresponding to the air inlet of the hot air blower.

[0023] The clothes dryer provided by the present invention has two air flow modes of internal and external circulation. For internal circulation, vents are provided on the clothes hanger, and an air flow cavity is provided inside the clothes hanger. Then, a fan of a clothes drying rod is used for suction, so that the heated air in the clothes cover enters the clothes hanger through the vents, and is then discharged into the enclosed space again by the clothes drying rod, thereby forming an internal circulation for drying clothes. For external circulation, air inlets and outlets are provided at the top and bottom of the clothes cover. When heating and drying clothes, an external circulation can be formed through the air inlets and outlets to dry clothes. This combined drying structure greatly improves the drying efficiency, ensures the uniformity of drying clothes, and shortens the drying time.

[0024] In a third aspect, the present invention provides a control method for controlling the clothes dryer, the method comprising the following steps:

[0025] Set the drying working time t0;

[0026] Complete the preheating process inside the garment cover;

[0027] Perform internal and external circulation combined heating and drying process;

[0028] Determine whether heated drying is complete;

[0029] When the result of the judgment is completion, the clothes dryer is controlled to stop.

[0030] As a further improvement of the present invention, the preheating treatment inside the garment shell includes:

[0031] Close all air inlets and outlets of the garment cover to form a closed space inside;

[0032] Start the drying component and the suction component to preheat the enclosed space and the drying rack;

[0033] Get the temperature T of the enclosed space inside the clothing cover;

[0034] When the temperature T≥the set temperature T0, the preheating is completed.

[0035] As a further improvement of the present invention, the determining whether the heating and drying of clothes is completed includes:

[0036] The pressure value P in the clothes drying rack is obtained at set intervals of period tj;

[0037] Determine the relationship between the difference between two adjacent pressure values ​​P and the set pressure value P0;

[0038] When the judgment result is that the difference is ≤ the set pressure value P0, the heating and drying of clothes is completed;

[0039] When the judgment result is that the difference value is greater than the set pressure value P0, the relationship between the whole machine startup time t and the set drying working time t0 is judged;

[0040] When the judgment result is that the whole machine startup time t is less than the set drying working time t0, the process returns to continue heating and drying clothes;

[0041] When the judgment result is that the whole machine startup time t≥ the set drying working time t0, the heating and drying of clothes is completed.

[0042] As a further improvement of the present invention, when the judgment result is completion, controlling the dryer to stop includes:

[0043] Control the suction component to stop working;

[0044] Control the heating element in the clothes drying component to stop working;

[0045] After the interval t1, the hot air blower in the clothes drying component is controlled to stop working. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0047] Figure 1 It is a structural schematic diagram of the clothes dryer of the present invention;

[0048] Figure 2 It is a schematic structural diagram of the connection between the clothes hanger and the clothes drying rod in the clothes drying rack of the present invention;

[0049] Figure 3 It is a vertical cross-sectional view of the clothes drying rod in the clothes drying rack of the present invention;

[0050] Figure 4 This is a front view of the clothes drying rod in the clothes drying rack of the present invention;

[0051] Figure 5 It is a top view of the clothes drying rod in the clothes drying rack of the present invention;

[0052] Figure 6 This is an end view of the clothes drying rod in the clothes drying rack of the present invention;

[0053] Figure 7 It is a control flow chart of an embodiment of the control method of the present invention.

[0054] In the figure, 1. clothes hanger; 11. hook; 12. clothes hanging part; 2. air flow cavity; 3. vent; 4. suction assembly; 41. clothes drying rod; 42. clothes drying rod fan; 43. exhaust cavity; 44. exhaust inlet; 45. exhaust outlet; 46. cover; 47. clothes drying rod sealing ring; 48. pressure sensor; 49. temperature sensor; 5. enclosed space; 6. clothes cover; 61. air outlet; 62. air outlet baffle; 63. air outlet motor; 64. air inlet baffle; 65. air inlet motor; 7. clothes drying assembly; 71. hot air cavity; 72. hot air fan; 73. heating element; 74. hot air fan inlet. DETAILED DESCRIPTION

[0055] To make the objectives, technical solutions, and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other implementations obtained by those of ordinary skill in the art without inventive effort are within the scope of protection of the present invention.

[0056] Example 1:

[0057] like Figure 1 As shown, the present invention provides a clothes drying rack, comprising a clothes hanger 1 placed in a confined space 5, the clothes hanger 1 being a hollow structure with an air flow cavity 2 inside; a plurality of air vents 3 connected to the air flow cavity 2 are provided on the clothes hanger 1, the other ends of the air vents 3 being connected to the confined space 5, and hot air can enter the air flow cavity 2 from the confined space through the air vents 3; and a suction component 4 is also included, one end of the suction component 4 being connected to the air flow cavity 2, and the other end being connected to the confined space 5, so that a negative pressure environment can be formed in the air flow cavity 2 through the suction component 4.

[0058] By forming a negative pressure environment in the air flow cavity 2 of the hanger 1, when in use, the hot air outside the hanger 1 can be sucked into the hanger 1 through the vent 3. During the hot air circulation process, the clothes on the hanger 1 are evaporated and dried.

[0059] The clothes drying rack provided by the present invention is provided with a clothes hanger 1 and a suction component 4. The clothes hanger 1 has an air flow cavity 2 for air circulation; and the clothes hanger 1 is provided with air vents 3 for hot air to enter the air flow cavity 2 through the air vents 3; the air flow cavity 2 is negatively pressurized by the suction component 4, so that the hot air in the enclosed space 5 enters the interior of the clothes hanger 1 through the air vents 3, and then is sent back to the enclosed space 5 by the suction component 4. This form of hot air circulation enables the clothes on the clothes hanger 1 to be evenly heated and dried, thereby ensuring the uniformity of drying.

[0060] In this embodiment, the suction component 4 can adopt a variety of structures, as long as it can achieve a negative pressure environment inside the hanger 1 and allow hot air to enter the hanger 1. The specific structure is not specifically limited in this embodiment.

[0061] In order to further improve the drying effect and meet the requirement of uniform drying, in this embodiment, the number of vents 3 is more than one, specifically: the hanger 1 has a hook portion 11 and a hanging portion 12, the hook portion 11 is used to hang the hanger 1 somewhere, and the hanging portion 12 is used to support and place clothes; the air flow chambers 2 of the hook portion 11 and the hanging portion 12 are connected; since air flow needs to flow out of the hook portion 11, and the air flow chamber 2 of the hanging portion 12 needs to be a closed circulation structure, in this embodiment, the hanging portion 12 is similar to a rectangular shape, so that the air flow chamber 2 inside it is a complete circle of closed air flow Cavity 2, the air flow cavity of the hanging portion 12 is connected to the air flow cavity 2 of the hook portion 11. Since the clothes are in contact with the hanging portion 12 only, in this embodiment, the vents 3 are arranged along a part or the entire circle of the hanging portion 12, that is, the vents 3 are arranged in a part of the area of ​​the hanging portion 12, for example, at the top of the hanging portion 12; of course, the vents 3 can also be arranged in the entire circle of the hanging portion 12. Through this structural arrangement, the hot air in the enclosed space 5 enters the air flow cavity 2 through the vents 3 in the entire circle of the hanging portion 12, and then flows out through the hook portion 11, thereby forming an internal circulation drying airflow.

[0062] The present invention provides ventilation holes 3 in a part or a whole circle of the clothes hanger 1, so that air circulation is formed in the part or the whole circle of the clothes hanger 1, thereby enhancing the drying effect of the wrinkles of the clothes.

[0063] It should be noted that, generally, clothes are placed on the outside of the clothes hanging portion 12 , so in order to improve the drying effect, in this embodiment, the ventilation holes 3 are located on the outer circle of the clothes hanging portion 12 .

[0064] Of course, the vent holes 3 can also be set at other locations and are not limited to the outer ring. The vent holes 3 can also be set at different sides of the inner ring or outer ring, or both the inner and outer rings can be provided with vent holes 3. As for which form is adopted, the present invention does not make a specific limitation.

[0065] Example 2:

[0066] This embodiment 2 further limits the structure of the suction component 4 based on the technical solution of embodiment 1.

[0067] like Figures 1-6As shown, in this embodiment, the suction component 4 includes a clothesline 41 and a clothesline fan 42; the clothesline 41 is fixed in the dryer and is used to carry the clothes hanger 1; in order to achieve air circulation, the clothesline 41 is a hollow structure with an exhaust cavity 43 inside; the clothesline 41 is also provided with an exhaust inlet 44 and an exhaust outlet 45 connected to the exhaust cavity 43; the clothesline fan 42 is arranged in the exhaust cavity 43; the clothes hanger 1 is hung at the exhaust inlet 44 position of the clothesline 41 to achieve communication between the airflow cavity 2 of the clothes hanger 1 and the exhaust cavity 43.

[0068] Specifically, in this embodiment, because the hook 11 of the clothes hanger 1 needs to be hung on the clothes drying rod 41, the air extraction inlet 44 is set at the top of the clothes drying rod 41, so as to facilitate the communication between the air flow cavity 2 of the clothes hanger 1 and the air extraction cavity 43 in the clothes drying rod 41.

[0069] In order to make full use of the airflow flowing through the clothes drying rod 41 and increase its residence time, as shown in this embodiment, one end of the clothes drying rod 41 has a downwardly extending bent portion, and an air exhaust outlet 45 is provided at the end of the bent portion, and the air exhaust outlet 45 is provided downward.

[0070] In this embodiment, the clothes drying pole fan 42 is located in the air extraction cavity 43 near the air extraction outlet 45 .

[0071] In order to improve the drying efficiency, the number of the air extraction inlets 44 is several and they are spaced apart along the axial direction of the clothes drying rod 41. Each air extraction inlet 44 can be used to hang a clothes hanger 1, so that multiple pieces of clothing can be dried at the same time.

[0072] In order to improve the flexibility of using the clothes drying rack, when the number of clothes to be dried is less than the number of exhaust inlets 44, the circulation of the internal circulating airflow will not be affected by the exhaust inlets 44 on which no clothes hangers 1 are hung being in a conducting state. The exhaust inlets 44 are provided with an openable and closable cover 46.

[0073] Specifically, the cover member 46 is a flexible sealing sheet, and the flexible sealing sheet is connected to the air extraction inlet in a flippable manner.

[0074] like Figures 1-6 As shown, the hanger 1 has a hook portion 11 with an open end. To improve sealing and prevent airflow from escaping through the connection, the hook portion 11 is inserted into the air extraction inlet 44 in an interference fit manner.

[0075] By adopting a detachable connection structure, one clothes drying rod fan 42 can simultaneously drive the air ducts of multiple clothes hangers 1 to perform suction-type internal circulation drying, thereby simplifying the structure and saving energy and reducing consumption.

[0076] In order to further improve the sealing performance, in this embodiment, Figure 2-Figure 6 As shown, a clothes-drying rod sealing ring 47 is also provided at the air extraction inlet 44 .

[0077] The clothesline rod sealing ring 47 can be a double-ring structure, with the two rings respectively clamped on the outer wall and inner wall of the air extraction inlet 44 for clamping; then the hook 11 of the hanger 1 is inserted into the clothesline rod sealing ring 47, thereby further improving the sealing effect.

[0078] It should be noted that the clothesline sealing ring 47 is also made of flexible material, and the sealing sheet is also made of flexible material. The two can use the same material. In order to facilitate connection, the clothesline sealing ring 47 and the sealing sheet can be integrally processed and formed, and the two are connected by a thinner connecting structure, so as to realize the flipping of the sealing sheet relative to the clothesline sealing ring 47.

[0079] In order to improve the automation of equipment operation, in this embodiment, the suction component 4 further includes a pressure sensor 48 and / or a temperature sensor 49.

[0080] It is possible to provide only the pressure sensor 48, and determine the completion of drying by pressure. In this case, since the temperature sensor 49 is not provided, the preheating process can be omitted and the clothes drying can proceed directly to heating. Of course, it is also possible to provide only the temperature sensor 49 without the pressure sensor 48. In this case, the preheating process can be performed and, after the preheating process is completed, conventional heating drying can be performed. Whether the clothes drying is completed depends entirely on the preset working time, and the dryer automatically shuts down after the preset working time. Although both of the above embodiments can achieve the drying process, they have certain disadvantages. The optimal embodiment is to provide both the temperature sensor 49 and the pressure sensor 48.

[0081] Specifically, the pressure sensor 48 can be set in the air extraction chamber 43 of the clothesline 41. Since the air extraction chamber 43 is connected to the air flow chamber 2, measuring the pressure of the air extraction chamber 43 is equivalent to measuring the pressure in the air flow chamber 2 in the clothes hanger 1. The reason why it is set in the inner cavity of the clothesline 41 is that the air extraction chamber 43 of the clothesline 41 has a large space, and the setting of the pressure sensor 48 can have less impact on the air flow circulation. The air flow chamber 2 of the clothes hanger 1 is relatively small in size, and the setting of the pressure sensor 48 is likely to affect the air flow. Moreover, the air flow chamber 2 in the clothes hanger 1 has air flow passing through the entirety, and the corner of the end of the clothesline 41 away from the air extraction outlet 45 has the least impact on the air flow circulation. The pressure sensor 48 is set here also taking this factor into consideration.

[0082] The temperature sensor 49 needs to measure the hot air temperature and can be set in the enclosed space 5 or in the exhaust cavity 43. For convenience, in this embodiment, the temperature sensor 49 is set on the outer wall of the clothes drying rod 41, which is not only convenient for installation but also easy for maintenance and replacement.

[0083] Example 3:

[0084] In this embodiment, the present invention provides a clothes dryer, such as Figure 1 As shown, the invention comprises a clothes cover 6 with an enclosed space 5, a clothes drying rack arranged in the clothes cover 6, and a clothes drying assembly 7 arranged at the bottom of the clothes cover 6 for drying clothes.

[0085] The clothes drying rack includes a clothes hanger 1 and a suction assembly 4, which includes a clothes drying rod 41 and a clothes drying rod fan 42. The clothes hanger 1 is a hollow structure with an internal airflow cavity 2. The clothes hanger 1 includes a hook portion 11 and a clothes hanging portion 12. The hook portion 11 has a hole at the front end, which can be effectively connected when aligned with the air extraction inlet 44 of the clothes drying rod 41, forming a passage. The clothes drying rod 41 is a hollow structure with an internal air extraction cavity 43. When the clothes drying rod fan 42 is turned on, a negative pressure is formed inside the clothes hanger 1 and the clothes drying rod 41. The hot air inside the clothing cover 6 enters the airflow cavity 2 of the clothes hanger 1 through the vents 3 around the clothes hanger 1, then enters the clothes drying rod 41, and is finally discharged through the clothes drying rod fan 42. Clothes are hung outside the clothes hanger 1, isolating the clothes hanger 1 from the hot air. The hot air needs to pass through the clothes to flow smoothly. In this process, the moisture on the clothes is dried away. For areas where conventional hot air dryers have poor drying effects, such as those close to the hanger 1 and underarms with obvious wrinkles, the strong air flow at the vents 3 will greatly improve the drying effect and enhance the uniformity of drying clothes.

[0086] In this embodiment, the clothes drying assembly 7 includes a hot air chamber 71, a hot air blower 72, and a heating element 73; the two ends of the hot air chamber 71 are respectively provided with an air supply port and a hot air blower air inlet 74 connected to the enclosed space 5 and the external environment; the hot air blower 72 and the heating element 73 are arranged in the hot air chamber 71 in sequence.

[0087] It should be noted here that the clothes drying assembly 7 can be arranged in the interlayer space at the bottom of the clothes cover 6.

[0088] In order to form an external air circulation structure, it also includes an air outlet 61 arranged on the top of the clothes cover 6, and an openable and closable air outlet baffle 62 is provided at the air outlet 61; and / or, an openable and closable air inlet baffle 64 is provided at the bottom of the clothes cover 6 corresponding to the air inlet 74 of the hot air blower.

[0089] Specifically, the opening and closing drive sources of the air inlet baffle 64 and the air outlet baffle 62 can be controlled by the air inlet motor 65 and the air outlet motor 63 respectively, and the transmission structure can adopt a gear set or a gear rack and other transmission structures. Since there are many ways to control the opening and closing of the baffle by the motor, horizontal rotation to open or close, vertical flipping to open or close, etc. can be adopted, and these structures are all available in the existing technology, so they will not be described in detail here.

[0090] When the air inlet motor 65 and the air outlet motor 63 drive the air inlet and outlet baffles to close the air inlet and outlet, the entire garment cover 6 is in a relatively closed state. At this time, the hot air inside the garment cover 6 is isolated from the outside world, which can quickly increase the air temperature inside the garment cover 6. This shortens the problem of slow temperature rise and low drying efficiency caused by the continuous escape of hot air during the initial startup of conventional hot air dryers.

[0091] The clothes dryer provided by the present invention has two air flow modes: internal and external circulation. For internal circulation, vent holes 3 are provided on the clothes hanger 1, and an air flow cavity 2 is provided inside the clothes hanger 1. Then, a clothes drying rod fan 42 is used for suction, so that the heated air in the clothes cover 6 enters the clothes hanger 1 through the vent holes 3, and is then discharged into the enclosed space 5 again by the clothes drying rod 41, thereby forming an internal circulation for drying clothes. For external circulation, air inlets and outlets 61 are provided at the top and bottom of the clothes cover 6. When heating and drying clothes, an external circulation can be formed through the air inlets and outlets 61 to dry clothes. This combined drying structure greatly improves the drying efficiency, ensures the uniformity of drying clothes, and shortens the drying time.

[0092] Example 4:

[0093] In this embodiment, a control method is provided, such as Figure 7 As shown, a method for controlling a clothes dryer includes the following steps:

[0094] Step S1: Set the drying time t0. This set drying time t0 is an empirical value that can be preset in the dryer. Based on extensive testing, the approximate drying times required for drying fabrics of different materials, clothes of different thicknesses, and clothes of different weights are all preset values. These values ​​can be set in the dryer system, and the user can select the corresponding drying time based on these parameters. It should be noted that before setting the drying time, the user has already hung the clothes on the hanger 1 and on the clothesline 41. Specifically, the user hangs the clothes evenly on the hanger 1 and then connects the hanger 1 to the clothesline sealing ring 47 of the exhaust inlet 44 on the clothesline 41. The exhaust inlet 44 on the clothesline 41 has a flexible clothesline sealing ring 47 with a relatively elastic seal. Under normal conditions, the seal is in close contact with the upper surface of the clothesline sealing ring 47, and the exhaust inlet 44 is essentially closed. When hanging the clothes hanger 1, the user lifts up the sealing sheet, and the end of the hook portion 11 of the clothes hanger 1 is aligned with the air extraction inlet 44 and inserted. Since the hook portion 11 of the clothes hanger 1 and the clothes drying rod sealing ring 47 are interference fit, the joint can be effectively sealed. The air extraction inlet 44 of the clothes drying rod 41 that is not docked remains in a closed state. The user can choose the docking port according to the number of clothes. There is a movable flexible sealing sheet above the clothes drying rod sealing ring 47. When the clothes hanger 1 absorbs air, the negative pressure inside the clothes hanger 1 causes the sealing sheet to cling to the upper surface of the clothes drying rod sealing ring 47, thereby playing a sealing role. After the clothes are hung, turn on the switch (it can be run continuously or for a set time).

[0095] Step S2, complete the preheating process inside the clothes cover; after setting the drying working time t0, it is necessary to preheat the internal space of the clothes cover 6 and the internal space of the drying rack. Since the preheating needs to heat up quickly, the preset process includes:

[0096] All air inlets and outlets of the cover 6 are closed to form a closed space 5 therein; that is, the air outlet 61 at the top of the cover 6 and the air inlet 74 of the hot air blower at the bottom are closed; the air inlet motor 65 and the air outlet motor 63 are used to drive the air inlet baffle 64 and the air outlet baffle 62 to close respectively to achieve air closure. At this time, the interior space of the cover 6 is a closed space 5, and heating can achieve rapid temperature increase of the space.

[0097] Start the clothes drying assembly 7 and the suction assembly 4 to preheat the enclosed space 5 and the clothes drying rack; specifically, first start the hot air blower 72, then start the heating element 73, and then start the clothes drying rod blower 42;

[0098] After preheating for a certain period of time, the temperature T of the enclosed space 5 inside the clothing cover 6 is obtained; the temperature is obtained by the temperature sensor, and if the temperature is greater than or equal to T0, it means that the interior of the clothing cover 6 has been preheated;

[0099] When the obtained temperature T of the enclosed space 5 ≥ the set temperature T0, it indicates that the required temperature has been reached in the enclosed space 5 and the preheating is completed.

[0100] Step S3: Execute the combined internal and external circulation heating and drying process. Specifically, the air inlet motor 65 and the air outlet motor 63 respectively drive the air inlet baffle 64 and the air outlet baffle 62 to open, thereby opening the air outlet and forming an external air circulation channel. The clothes drying rod fan 42 in the suction assembly 4 continues to operate to perform negative pressure suction heating and drying. At this time, an internal circulation channel is formed in the clothes hanger 1 and the clothes drying rod 41, thereby achieving internal circulation heating and drying. An external circulation channel is formed between the air supply port, the enclosed space 5, and the air outlet 61, thereby achieving external circulation heating and drying.

[0101] Step S4: determining whether the heating and drying process is completed;

[0102] Specifically, including:

[0103] At every set period tj, the pressure value P in the clothes drying rack is obtained through the pressure sensor;

[0104] Determine the relationship between the difference between two adjacent pressure values ​​P and the set pressure value P0;

[0105] When the judgment result is that the difference is ≤ the set pressure value P0, the heating and drying of clothes is completed. In other words, if the difference between the pressure P1 tested at the previous time and the pressure P2 tested at the current time is less than or equal to P0, it means that the moisture level on the surface of the clothes in contact with the hole of hanger 1 is basically stable and there is no obvious change in wind resistance. It can be determined that the clothes are basically dry, and the clothes drying pole fan can be stopped.

[0106] When the judgment result is that the difference value is greater than the set pressure value P0, the relationship between the whole machine startup time t and the set drying working time t0 is judged;

[0107] When the judgment result is that the whole machine startup time t is less than the set drying working time t0, the process returns to step 3 to continue heating and drying clothes;

[0108] If the result of the judgment is that the machine startup time t ≥ the set drying time t0, the heating and drying process is complete. That is, after the machine has run for the set time t0, the drying process is complete and the machine can be shut down. The heating element 73 is controlled to stop. After the interval t1, the heating element 73 has cooled down and the hot air blower 72 stops, and the process is completed.

[0109] Step S5: When the result of the judgment is that the heating and drying process is completed, the clothes dryer is controlled to stop, specifically including:

[0110] Control the suction component to stop working;

[0111] Controlling the heating element 73 in the clothes drying assembly 7 to stop working;

[0112] After the interval t1, the hot air blower 72 in the clothes drying assembly 7 is controlled to stop working.

[0113] First of all, it should be noted that “inward” refers to the direction toward the center of the accommodating space, and “outward” refers to the direction away from the center of the accommodating space.

[0114] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate directions or positional relationships based on the attached Figure 1 The orientation or positional relationship shown is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0115] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0116] In the present invention, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediate medium; internal communication between two components, or interaction between two components, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0117] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0118] In the description of this specification, the reference terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and features of different embodiments or examples without contradiction.

[0119] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any modifications or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present invention should be included in the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.

Claims

1. A method for controlling a clothes dryer, characterized in that: The clothes dryer includes a clothes cover with an enclosed space, and a clothes drying rack disposed within the clothes cover; the clothes drying rack includes a clothes hanger, the clothes hanger being a hollow structure with an air flow cavity therein; the clothes hanger is provided with a plurality of vents communicating with the air flow cavity; the clothes hanger also includes a suction assembly having one end communicating with the air flow cavity and the other end communicating with the enclosed space, wherein a negative pressure environment can be formed within the air flow cavity by the suction assembly; the method includes the following steps: Set the drying working time t0; Complete the preheating process inside the garment cover; Perform internal and external circulation combined heating and drying process; The pressure value P in the clothes drying rack is obtained at set intervals of period tj; Determine the relationship between the difference between two adjacent pressure values ​​P and the set pressure value P0; When the judgment result is that the difference is ≤ the set pressure value P0, the heating and drying of clothes is completed and the dryer is controlled to stop; When the judgment result is that the difference value is greater than the set pressure value P0, the relationship between the whole machine startup time t and the set drying working time t0 is judged; When the judgment result is that the whole machine startup time t is less than the set drying working time t0, the process returns to continue heating and drying clothes; When the judgment result is that the whole machine startup time t≥ the set drying working time t0, the heating and drying of clothes is completed and the dryer is controlled to stop.

2. The method according to claim 1, characterized in that The preheating treatment in the garment cover is completed as follows: Close all air inlets and outlets of the garment cover to form a closed space inside; Start the drying component and the suction component to preheat the enclosed space and the drying rack; Get the temperature T of the enclosed space inside the clothing cover; When the temperature T≥the set temperature T0, the preheating is completed.

3. The method according to claim 1, characterized in that The controlling the clothes dryer to stop comprises: Control the suction component to stop working; Control the heating element in the clothes drying component to stop working; After the interval t1, the hot air blower in the clothes drying component is controlled to stop working.

4. The method according to claim 1, wherein The clothes hanger comprises a hook portion and a clothes hanging portion, wherein the air flow cavities of the hook portion and the clothes hanging portion are communicated with each other; and the vent holes are arranged along a part or a whole circle of the clothes hanging portion.

5. The method according to claim 4, characterized in that The ventilation holes are located on the outer circle and / or the inner circle of the clothes hanging portion.

6. The method according to claim 1, characterized in that The suction assembly includes a clothesline and a clothesline fan; the clothesline is a hollow structure with an exhaust cavity inside; the clothesline is also provided with an exhaust inlet and an exhaust outlet connected to the exhaust cavity; the clothesline fan is arranged in the exhaust cavity; the clothes hanger is hung at the exhaust inlet position of the clothesline to achieve communication between the air flow cavity of the clothes hanger and the exhaust cavity.

7. The method according to claim 6, characterized in that There are a plurality of air extraction inlets, which are arranged at intervals along the axial direction of the clothes drying rod.

8. The method according to claim 6, characterized in that The air extraction inlet is provided with an openable and closable sealing cover.

9. The method according to claim 6, characterized in that The clothes hanger has a hook portion, the end of which is an open structure; the hook portion is inserted into the air extraction inlet in an interference fit manner.

10. The method according to claim 9, characterized in that A clothes-drying rod sealing ring is also provided at the air extraction inlet.

11. The method according to claim 1, wherein The suction assembly also includes a pressure sensor; and / or a temperature sensor.

12. The method according to claim 1, characterized in that The clothes dryer further comprises a clothes drying assembly arranged at the bottom of the clothes cover for drying clothes.

13. The method according to claim 12, characterized in that The clothes drying assembly includes a hot air chamber, a hot air blower, and a heating element; an air supply port and a hot air blower inlet communicating with the enclosed space and the external environment are respectively provided at both ends of the hot air chamber; the hot air blower and the heating element are sequentially arranged in the hot air chamber.

14. The method according to claim 13, characterized in that It also includes an air outlet arranged on the top of the clothing cover, wherein the air outlet is provided with an openable and closable air outlet baffle; and / or an openable and closable air inlet baffle is provided at the bottom of the clothing cover corresponding to the air inlet of the hot air blower.

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