WO2021223487A1 - 旋钮机构、冰箱以及防凝露方法 - Google Patents

旋钮机构、冰箱以及防凝露方法 Download PDF

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Publication number
WO2021223487A1
WO2021223487A1 PCT/CN2021/076730 CN2021076730W WO2021223487A1 WO 2021223487 A1 WO2021223487 A1 WO 2021223487A1 CN 2021076730 W CN2021076730 W CN 2021076730W WO 2021223487 A1 WO2021223487 A1 WO 2021223487A1
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WIPO (PCT)
Prior art keywords
knob
humidity
heating wire
heating
knob mechanism
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Application number
PCT/CN2021/076730
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English (en)
French (fr)
Inventor
李晓峰
侯建国
Original Assignee
青岛海尔电冰箱有限公司
海尔智家股份有限公司
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Publication of WO2021223487A1 publication Critical patent/WO2021223487A1/zh

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H19/00—Switches operated by an operating part which is rotatable about a longitudinal axis thereof and which is acted upon directly by a solid body external to the switch, e.g. by a hand
    • H01H19/02—Details
    • H01H19/10—Movable parts; Contacts mounted thereon
    • H01H19/14—Operating parts, e.g. turn knob
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D21/00—Defrosting; Preventing frosting; Removing condensed or defrost water
    • F25D21/02—Detecting the presence of frost or condensate
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D21/00—Defrosting; Preventing frosting; Removing condensed or defrost water
    • F25D21/04—Preventing the formation of frost or condensate
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D29/00—Arrangement or mounting of control or safety devices
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H19/00—Switches operated by an operating part which is rotatable about a longitudinal axis thereof and which is acted upon directly by a solid body external to the switch, e.g. by a hand
    • H01H19/02—Details
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H19/00—Switches operated by an operating part which is rotatable about a longitudinal axis thereof and which is acted upon directly by a solid body external to the switch, e.g. by a hand
    • H01H19/02—Details
    • H01H19/04—Cases; Covers

Definitions

  • the present invention relates to the technical field of refrigerating and freezing devices, in particular to a knob mechanism, a refrigerator and a method for preventing condensation.
  • the knob module is widely used in refrigerators due to its simple and convenient operation and its own display function to adjust the temperature of the storage compartment and switch different functions.
  • the knob module is installed inside the refrigerating compartment. When the user goes to the refrigerator to open the door to fetch things, condensation will occur on the screen of the knob module, causing problems such as unclear display, which affects the user's perception and experience.
  • An object of the present invention is to provide a knob mechanism that can prevent condensation.
  • a further object of the present invention is to provide an anti-condensation method for controlling the knob mechanism of a refrigerator that is precise and energy-saving.
  • the present invention provides a knob mechanism, including: a base, a housing, a cover, a display screen and a heating wire;
  • the shell has a through hole, the front side is sealed by a cover plate, and the back side is connected with the base;
  • the display screen is set behind the cover to display data information
  • the heating wire is arranged between the cover plate and the display screen to adjust the humidity inside the knob mechanism to prevent condensation.
  • the knob mechanism further includes: a humidity detection device, which is arranged in the knob mechanism, and is used for detecting the humidity inside the knob mechanism.
  • a humidity detection device which is arranged in the knob mechanism, and is used for detecting the humidity inside the knob mechanism.
  • the knob mechanism further includes: a control unit, which is arranged behind the display screen and includes a PCB board and an MCU.
  • the MCU is electrically connected to the PCB board for outputting data information to the display screen and controlling the action of the heating wire.
  • the present invention also provides a refrigerator, wherein the aforementioned knob mechanism is arranged in the storage compartment of the refrigerator.
  • the present invention also provides the aforementioned anti-condensation method for the knob mechanism of a refrigerator, including:
  • the heating wire action is controlled based on the opening and closing conditions of the door and the humidity inside the knob mechanism.
  • the step of controlling the heating wire action based on the opening and closing conditions of the door and the humidity inside the knob mechanism includes:
  • the heating power of the heating wire is determined according to the preset mapping relationship and the heating wire is controlled to start heating.
  • the mapping relationship defines the heating of the heating wire corresponding to the humidity range value of the knob power.
  • the method further includes:
  • the heating wire is controlled to stop heating.
  • the heating wire is intermittently controlled to heat.
  • the step of intermittently controlling the heating of the heating wire includes: controlling the heating wire to repeat a plurality of heating cycles, wherein in each heating cycle, the heating wire is turned on for a first preset time and then stopped for a second preset time, and then the next step is performed.
  • One heating cycle One heating cycle.
  • the method further includes:
  • the heating wire is controlled to stop heating.
  • the knob mechanism of the present invention can effectively remove the water vapor in the knob mechanism by arranging the heating wire in the shell and between the cover plate and the display screen, preventing condensation, and thereby making the display of the knob mechanism always clear. Improve user perception and experience.
  • the anti-condensation method of the knob mechanism of the refrigerator of the present invention is based on the opening and closing conditions of the door and the humidity inside the knob mechanism to control the heating wire action, fully considering the factors affecting the humidity inside the knob mechanism, and the heating wire control should be considered
  • the real-time humidity inside the knob mechanism can effectively avoid frequent switching on and off of the heating wire, realizing energy saving and high-efficiency control.
  • Fig. 1 is an exploded schematic diagram of a knob mechanism according to an embodiment of the present invention.
  • Fig. 2 is a side view of a refrigerator having the knob mechanism shown in Fig. 1.
  • Fig. 3 is a schematic diagram of the anti-condensation method of the knob mechanism of the refrigerator shown in Fig. 2.
  • Fig. 4 is a block diagram of some components of the refrigerator shown in Fig. 2.
  • Fig. 5 is a flowchart of the method for preventing condensation of the knob mechanism of the refrigerator shown in Fig. 2.
  • Fig. 1 is an exploded schematic diagram of a knob mechanism 100 according to an embodiment of the present invention.
  • Fig. 2 is a side view of a refrigerator 200 having the knob mechanism 100 shown in Fig. 1.
  • the knob mechanism 100 of the embodiment of the present invention includes: a base 101, a housing 102, a cover 105, a display screen 103, and a heating wire 106.
  • a refrigerator 200 with the knob mechanism 100 generally includes a box body 201 and a door body 202.
  • a storage compartment is defined in the box body 201, which may include a refrigerating compartment, a freezing compartment, a temperature changing compartment, and so on.
  • FIG. 1 is an exploded schematic diagram of a knob mechanism 100 according to an embodiment of the present invention.
  • Fig. 2 is a side view of a refrigerator 200 having the knob mechanism 100 shown in Fig. 1.
  • the knob mechanism 100 of the embodiment of the present invention includes: a base 101, a housing 102, a cover 105, a display
  • the upper storage compartment is the refrigerating compartment 210
  • the lower part is the temperature-variable compartment and the freezer compartment in turn.
  • a pivoting door is provided on the front side of the refrigerating compartment 210.
  • Body 202, and the temperature-variable compartment and the freezer compartment are respectively provided with a first pull-out storage device 203 and a second pull-out storage device 204.
  • a storage drawer 211 is also provided in the refrigerating compartment 210.
  • the knob mechanism 100 is disposed near the top of the refrigerating compartment 210 along the front-rear direction. As shown in FIG.
  • the housing 102 of the knob mechanism 100 has a through hole, the front side is sealed by a cover plate 105, and the rear side is connected with the base 101.
  • the housing 102 is generally a cylindrical structure, and the through holes are holes that penetrate the front and rear directions of the housing 102.
  • a number of anti-slip ribs are provided on the outer wall of the housing 102 to facilitate the rotation of the user.
  • the cover 105 may be a glass cover.
  • the specific structure of the base 101 can refer to the structure of the base 101 in the prior art, which is not limited here, and can be fixed to the storage compartment of the refrigerator 200 or the parts in the storage compartment, such as lamp holders.
  • the display screen 103 is arranged behind the cover plate 105 for displaying data information.
  • Data information includes but is not limited to room temperature information, room humidity information, and so on.
  • the heating wire 106 is arranged in the housing 102 and is used to adjust the humidity inside the knob mechanism 100 to prevent condensation.
  • the knob mechanism 100 of the embodiment of the present invention can effectively remove the water vapor in the knob mechanism 100 by arranging the heating wire 106 in the housing 102 to prevent condensation, thereby making the display of the knob mechanism 100 always clear, and improving the user's perception and experience.
  • the heating wire 106 is arranged between the cover plate 105 and the display screen 103. Considering that condensation mainly affects the display effect of the knob mechanism 100, that is, the cover plate 105 and the display screen 103, the heating wire 106 is arranged on the cover plate Between 105 and the display screen 103, condensation can be prevented more accurately.
  • the cover 105 of the knob mechanism 100 of the embodiment of the present invention may include a transparent area 151 and a non-transparent area; the heating wire 106 is provided corresponding to the non-transparent area. Setting the heating wire 106 to be covered by the non-transparent area 152 can make the appearance of the entire knob mechanism 100 more beautiful and enhance the user's sensory experience.
  • the transparent area 151 is located at the center of the cover plate 105; the non-transparent area 152 is located on the peripheral side of the transparent area 151 and has a ring shape; the heating wire 106 is ring-shaped and is arranged corresponding to the ring-shaped non-transparent area 152 .
  • the ring-shaped heating wire 106 can make the heating inside the entire knob mechanism 100 more uniform and avoid local overheating.
  • the knob mechanism 100 further includes a screen protection film 107, which is arranged between the heating wire 106 and the display screen 103 to isolate the display screen 103 from the heating wire 106 to avoid damage to the display screen 103 when the heating wire 106 is turned on. .
  • a screen protection film 107 By providing the screen protection film 107, it is possible to avoid excessive heat of the heating wire 106 from affecting the display screen 103, so as not to affect the service life of the display screen 103.
  • the knob mechanism 100 of the embodiment of the present invention further includes: a humidity detection device 108 disposed in the knob mechanism 100 for detecting the humidity inside the knob mechanism 100.
  • the knob mechanism 100 of the present invention can detect the humidity inside the knob mechanism 100 in real time by setting the humidity detection device 108 in the housing 102, and the operation of the heating wire 106 can be conveniently controlled based on the humidity value.
  • the data information displayed on the display screen 103 may also include knob humidity information, heating wire operating status, heating wire heating power, and so on.
  • the knob mechanism 100 of the embodiment of the present invention further includes: a control unit 104, which is arranged behind the display screen 103 and includes a PCB board and an MCU.
  • the MCU is electrically connected to the PCB board for outputting data information to the display screen 103 and controlling the action of the heating wire 106 .
  • a humidity detection circuit is designed on the PCB and a humidity detection device 108 is mounted.
  • the control unit 104 can control the display screen 103 to display the working status of the knob mechanism 100, for example, control the display screen 103 to display the current compartment function or compartment temperature range value; it can establish a communication relationship with the main control board 205 of the refrigerator 200, and receive the master The data sent by the control board 205 is adjusted accordingly, and the corresponding response signal is returned after the setting is completed; the operation of the heating wire 106 can also be controlled so that the heating wire 106 works according to the corresponding control logic.
  • the control of the knob mechanism 100 and the control of the refrigerator 200 can be kept independent and coordinated. When only the internal control of the knob mechanism 100 is involved, it is no longer necessary to be controlled by the main control board 205, which can improve Control efficiency.
  • the refrigerating compartment 210 is taken as an example below to describe the anti-condensation method of the knob mechanism 100 of the present invention in detail.
  • the knob mechanism 100 may also be provided in the temperature-changing room corresponding to the first pull-out storage device 203, and the opening and closing of the door at this time is the pulling out and pushing in of the first pull-out storage device 203; similarly, the first pull-out storage device 203
  • the freezer compartment corresponding to the second pull-out storage device 204 may also be provided with a knob mechanism 100. At this time, the opening and closing of the door is the pulling out and pushing in of the second pull-out storage device 204.
  • FIG. 3 is a schematic diagram of the anti-condensation method of the knob mechanism 100 of the refrigerator 200 shown in FIG. 2.
  • the anti-condensation method of the knob mechanism 100 of the refrigerator 200 includes the following steps:
  • S106 Control the heating wire 106 to operate based on the opening and closing conditions of the door 202 and the humidity inside the knob mechanism 100.
  • the anti-condensation method for the knob mechanism 100 of the refrigerator 200 of the embodiment of the present invention is based on the opening and closing conditions of the door 202 and the humidity control heating wire 106 action inside the knob mechanism 100, and fully considers the main factors affecting the humidity inside the knob mechanism 100, and at the same time
  • the control of the heating wire 106 should consider the actual humidity inside the knob mechanism 100, which can effectively avoid frequent switching on and off of the heating wire 106, and realize energy-saving and high-efficiency control.
  • FIG. 4 is a block diagram of some components of the refrigerator 200 shown in FIG. 2.
  • the control unit 104 may include a processor 140 and a memory 141, and a computer program 142 is stored in the memory 141, and when the computer program 142 is executed by the processor 140, it is used to implement the control method of the anti-condensation method of the knob mechanism 100 of the refrigerator 200.
  • the opening and closing status of the door body 202 can be detected by the door opening and closing detection device 206 and sent to the main control board 205 of the refrigerator 200.
  • the main control board 205 of the refrigerator 200 communicates with the control unit 104 of the knob mechanism 100, receives the signal detected by the door switch detection device 206, and obtains the opening and closing status of the door 202 of the refrigerating compartment 210.
  • the control unit 104 also obtains the humidity inside the knob mechanism 100 based on the humidity detection device 108.
  • the processor 140 controls the action of the heating wire 106 after processing the acquired various information.
  • the step of controlling the action of the heating wire 106 based on the opening and closing condition of the door 202 and the humidity inside the knob mechanism 100 includes:
  • the heating power of the heating wire 106 is determined according to the preset mapping relationship and the heating wire 106 is controlled to start heating.
  • the mapping relationship defines the heating wire corresponding to the humidity range value of the knob. 106 heating power.
  • the method of the embodiment of the present invention proposes to first determine whether the opening signal of the door 202 is received. After receiving the turn-on signal, although the internal humidity of the knob mechanism 100 will change, the method of the present invention restricts the heating wire 106 to start heating only when the humidity value of the first knob is greater than or equal to the first humidity threshold, which can avoid The heating wire 106 is frequently started to heat, which simplifies the control.
  • the method of the present invention sets a multi-level heating power, so that the heating state of the heating wire 106 is more matched with the actual humidity inside the knob mechanism 100, where the first The higher the humidity value of the knob, the higher the corresponding heating power.
  • the range of the humidity inside the knob mechanism 100 is assumed to be 5%-60%, and the first humidity threshold may be 30%-40%, such as 30%, 35%, 40%.
  • the 30%-60% interval can be divided into 3 continuous intervals, the first interval is 30%-40%, and the corresponding heating power is W 1 ; the second interval is 40%-50%, and the corresponding heating power is W 2 ; the first interval is 50%-60%, and the corresponding heating power is W 3 ; W 1 ⁇ W 2 ⁇ W 3 .
  • the realization of different heating powers of the heating wire 106 can be achieved by designing multiple switches to control different power sources to communicate with the heating wire 106.
  • the number of continuous intervals can be set as required, usually 3-5, which can realize multi-level control without adding more control switches.
  • the method further includes:
  • the humidity inside the knob mechanism 100 is obtained, the second knob humidity value is obtained, and it is determined whether the second knob humidity value is less than or equal to the preset second humidity threshold; and when the second knob humidity value is less than or equal to the first 2.
  • control the heating wire 106 to stop heating;
  • the temperature of the refrigerating compartment 210 is obtained to obtain the temperature of the first compartment, and it is determined whether the temperature of the first compartment is greater than or equal to the preset first temperature threshold; and when the temperature of the first compartment is greater than or equal to At the first temperature threshold, the heating wire 106 is controlled to stop heating.
  • the heating wire 106 is controlled to heat according to the heating power for a period of time, when the door 202 is normally closed, when the humidity inside the knob mechanism 100 has been lower than the second humidity threshold, it can be considered that there is no risk of condensation, and the heating wire 106 is controlled to stop at this time .
  • the second humidity threshold is smaller than the first humidity threshold, and may be 5%-10%, for example, 5%, 7%, or 10%.
  • the stop of the heating wire 106 at this time is determined based on the relationship between the temperature of the compartment and the first temperature threshold. It is considered that the refrigerating compartment 210 is not closed when the door 202 is not closed.
  • the air constantly circulates with the surrounding air.
  • the temperature of the refrigerating compartment 210 may be acquired by the temperature detecting device 207 provided in the refrigerating compartment 210.
  • the first temperature threshold may be close to the normal room temperature, about 20°C-25°C, for example, 20°C, 22°C, 25°C.
  • the heating wire 106 is intermittently controlled to heat.
  • the second temperature threshold may be close to the target temperature of a normal storage compartment.
  • the general target temperature is 3°C-5°C
  • the second temperature threshold may be set to 3°C-5°C, for example, 3°C. , 4°C, 5°C; for another example, for a freezer compartment, the general target temperature is -18°C-(-20°C).
  • the second temperature threshold can be set to -18°C-(-20°C), for example -18°C, -19°C, -20°C.
  • the refrigerator 200 may be provided with multiple second temperature thresholds, which correspond to the knob mechanisms 100 in different storage compartments, respectively.
  • the heating wire 106 is intermittently controlled to heat, and the heating wire 106 is used for intermittent heating to avoid long-term cooling of the refrigerator 200. Condensation of air-conditioning, while saving energy as much as possible.
  • the step of intermittently controlling the heating of the heating wire 106 includes: controlling the heating wire 106 to repeat a plurality of heating cycles, wherein in each heating cycle, the heating wire 106 is turned on for a first preset time and then stopped for a second preset time. Time, and then proceed to the next heating cycle.
  • the first preset time may be 5-10s, such as 5s, 8s, 10s.
  • the second preset time may be the same as or different from the first preset time.
  • the second preset time may be 5-10s, for example, 5s, 7s, 10s.
  • the first measured third knob humidity value can be used to control the heating power corresponding to the mapping relationship described in the foregoing to control the intermittent heating of the heating wire 106, or a separate intermittent heating can be preset. power.
  • the method further includes:
  • the heating wire 106 is controlled to stop heating.
  • the heating wire 106 is controlled to stop at this time.
  • the present invention proposes for the first time that the operation of the heating wire 106 is controlled according to the different switching conditions of the door 202 and the different humidity inside the knob mechanism 100, so that the control logic is more matched with the actual conditions inside the knob mechanism 100, and the entire anti-condensation method It is simpler and more energy-efficient.
  • FIG. 5 is a flowchart of the method for preventing condensation of the knob mechanism 100 of the refrigerator 200 shown in FIG. 2.
  • the anti-condensation method of the knob mechanism 100 of the refrigerator 200 includes the following steps:
  • S202 Determine whether an opening signal of the door 202 of the refrigerating compartment 210 is received.
  • step S204 When the judgment result of step S202 is yes, obtain the humidity inside the knob mechanism 100 to obtain the first knob humidity value.
  • S206 Determine whether the humidity value of the first knob is greater than or equal to the first humidity threshold.
  • step S208 When the judgment result of step S206 is yes, determine the heating power according to the preset mapping relationship and control the heating wire 106 to start heating. When the judgment result of step S206 is no, the heating wire 106 does not operate, and step S204 is continued until the judgment result of step S206 is yes.
  • the first preset period of time may be the interval period for a user to open and close the door 202 of the refrigerator 200 in general, and may be 10 s to 2 min, for example, 10 s, 1 min, or 2 min.
  • step S212 When the judgment result of step S210 is yes, obtain the humidity inside the knob mechanism 100 to obtain the second knob humidity value, and determine whether the second knob humidity value is less than or equal to the second humidity threshold.
  • step S214 When the judgment result of step S212 is yes, control the heating wire 106 to stop heating. When the judgment result of step S212 is no, continue to execute step S208 and step S210 until the judgment result of step S212 is yes. It can be understood that when the judgment result of step S212 is no, only step S208 may be performed until the judgment result of step S212 is yes.
  • step S216 When the judgment result of step S210 is no, obtain the temperature of the refrigerating compartment 210 to obtain the temperature of the first compartment.
  • step S218 Determine whether the temperature of the first compartment is greater than or equal to the first temperature threshold. When the judgment result of step S218 is YES, the heating wire 106 is controlled to stop heating. When the judgment result of step S218 is no, step S216 is continued until the judgment result of step S218 is yes.
  • step S220 When the judgment result of step S202 is no, judge whether the closing time of the door 202 exceeds one refrigeration cycle.
  • step S222 When the judgment result of step S220 is no, obtain the temperature of the refrigerating compartment 210 to obtain the temperature of the second compartment.
  • S224 Determine whether the temperature of the second compartment is less than or equal to the second temperature threshold.
  • step S226 When the judgment result of step S224 is yes, obtain the humidity inside the knob mechanism 100 to obtain the third knob humidity value.
  • S228 Determine whether the humidity value of the third knob is greater than or equal to the first humidity threshold.
  • step S230 When the judgment result of step S228 is YES, the heating wire 106 is intermittently controlled to heat.
  • step S232 After intermittently controlling the heating wire 106 to heat the second preset duration according to step S230, obtain the humidity inside the knob mechanism 100 to obtain the fourth knob humidity value, and determine whether the fourth knob humidity value is less than or equal to the second humidity threshold.
  • the second preset duration may be 10s-1min, for example, 10s, 30s, 1min.
  • step S234 When the judgment result of step S232 is yes, control the heating wire 106 to stop heating.
  • the heating wire 106 is arranged in the housing 102, and the heating wire 106 is arranged between the cover 105 and the display screen 103, which can effectively remove the water vapor in the knob mechanism 100 and prevent condensation. Therefore, the display of the knob mechanism 100 is always clear, and the user's perception and use experience are improved.
  • the anti-condensation method for the knob mechanism 100 of the refrigerator 200 of the embodiment of the present invention is based on the opening and closing conditions of the door 202 and the humidity control heating wire 106 action inside the knob mechanism 100, fully considering the factors affecting the humidity inside the knob mechanism 100
  • the control of the heating wire 106 should consider the real-time humidity inside the knob mechanism 100, which can effectively avoid frequent switching on and off of the heating wire 106, and realize energy saving and efficient control.

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  • Combustion & Propulsion (AREA)
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Abstract

一种旋钮机构，包括：底座、壳体、盖板、显示屏和加热丝；所述壳体具有通孔，前侧由所述盖板密封，后侧与所述底座连接；所述显示屏设置于所述盖板后方，用于显示数据信息；所述加热丝设置于所述盖板和所述显示屏之间，用于调节所述旋钮机构内部的湿度以防凝露。本发明的旋钮机构通过在壳体内设置加热丝，并将加热丝设置于盖板和显示屏之间，可以有效去除旋钮机构内的水汽，防止产生凝露，进而使旋钮机构的显示始终清晰，提升用户观感和使用感受。本发明还提供一种具有该旋钮机构的冰箱及防凝露方法。

Description

旋钮机构、冰箱以及防凝露方法 技术领域
本发明涉及冷藏冷冻装置技术领域，特别是涉及一种旋钮机构、冰箱以及防凝露方法。
背景技术
目前随着冰箱的不断迭代升级，冰箱的外观及功能在不断地优化。旋钮模块由于操作简单方便且可自带显示功能来调节储物间室的温度以及切换不同的功能等等而使得其在冰箱中得到了充分广泛的应用。通常，旋钮模块设置在冷藏间室内部，当用户去冰箱开门取物时，会在旋钮模块的屏幕上产生凝露现象，造成显示不清晰等问题，影响用户观感和使用体验。
发明内容
本发明的一个目的是要提供一种可以防凝露的旋钮机构。
本发明一个进一步的目的是要提供一种控制精准且节能的冰箱的旋钮机构的防凝露方法。
特别地，本发明提供了一种旋钮机构，包括：底座、壳体、盖板、显示屏和加热丝；
壳体具有通孔，前侧由盖板密封，后侧与底座连接；
显示屏设置于盖板后方，用于显示数据信息；
加热丝设置于盖板和显示屏之间，用于调节旋钮机构内部的湿度以防凝露。
可选地，旋钮机构还包括：湿度检测装置，设置于旋钮机构内，用于检测旋钮机构内部的湿度。
可选地，旋钮机构还包括：控制单元，设置于显示屏后方，包括PCB板和MCU，MCU电连接于PCB板，用于向显示屏输出数据信息以及控制加热丝动作。
本发明还提供一种冰箱，其中，冰箱的储物间室内设置有前述的旋钮机构。
本发明还提供一种前述的冰箱的旋钮机构防凝露方法，包括：
获取储物间室的门体的开关情况；
获取旋钮机构内部的湿度；
基于门体的开关情况和旋钮机构内部的湿度控制加热丝动作。
可选地，基于门体的开关情况和旋钮机构内部的湿度控制加热丝动作的步骤包括：
在冰箱运行过程中，判断是否接收到门体的开启信号；
当接收到开启信号时，获取旋钮机构内部的湿度，得到第一旋钮湿度值，并判断第一旋钮湿度值是否大于等于预设的第一湿度阈值；
当第一旋钮湿度值大于等于第一湿度阈值时，按照预设的映射关系确定出加热丝的加热功率并控制加热丝开始加热，其中映射关系中限定有旋钮湿度范围值对应的加热丝的加热功率。
可选地，在控制加热丝按加热功率加热的步骤之后，还包括：
判断门体是否关闭；
当门体关闭时，获取旋钮机构内部的湿度，得到第二旋钮湿度值，并判断第二旋钮湿度值是否小于等于预设的第二湿度阈值；并且当第二旋钮湿度值小于等于第二湿度阈值时，控制加热丝停止加热；
当门体未关闭时，获取储物间室的温度，得到第一间室温度，并判断第一间室温度是否大于等于预设的第一温度阈值；并且当第一间室温度大于等于第一温度阈值时，控制加热丝停止加热。
可选地，当未接收到开启信号时，判断门体的关闭时间是否已超过一个制冷周期；
当门体的关闭时间未超过一个制冷周期时，获取储物间室的温度，得到第二间室温度，并判断第二间室温度是否小于等于预设的第二温度阈值；
当第二间室温度小于等于第二温度阈值时，获取旋钮机构内部的湿度，得到第三旋钮湿度值，并判断第三旋钮湿度值是否大于等于第一湿度阈值；
当第三旋钮湿度值大于等于第一湿度阈值时，间歇控制加热丝加热。
可选地，间歇控制加热丝加热的步骤包括：控制加热丝重复多个加热周期，其中在每个加热周期内，加热丝开启加热第一预设时间后停止第二预设时间，之后进行下一个加热周期。
可选地，在间歇控制加热丝加热的步骤之后，还包括：
获取旋钮机构内部的湿度，得到第四旋钮湿度值，并判断第四旋钮湿度值是否小于等于预设的第二湿度阈值；
当第四旋钮湿度值小于等于第二湿度阈值时，控制加热丝停止加热。
本发明的旋钮机构通过在壳体内设置加热丝，并将加热丝设置于盖板和显示屏之间，可以有效去除旋钮机构内的水汽，防止产生凝露，进而使旋钮机构的显示始终清晰，提升用户观感和使用感受。
进一步地，本发明的冰箱的旋钮机构防凝露方法是基于门体的开关情况和旋钮机构内部的湿度控制加热丝动作，充分考虑了影响旋钮机构内部湿度的因素，同时加热丝的控制要考虑旋钮机构内部的实时湿度，可以有效避免频繁开停加热丝，实现节能和高效控制。
根据下文结合附图对本发明具体实施例的详细描述，本领域技术人员将会更加明了本发明的上述以及其他目的、优点和特征。
附图说明
后文将参照附图以示例性而非限制性的方式详细描述本发明的一些具体实施例。附图中相同的附图标记标示了相同或类似的部件或部分。本领域技术人员应该理解，这些附图未必是按比例绘制的。附图中：
图1是根据本发明一个实施例的旋钮机构的分解示意图。
图2是具有图1所示的旋钮机构的冰箱的侧视图。
图3是图2所示的冰箱的旋钮机构防凝露方法的示意图。
图4是图2所示的冰箱的部分部件组成框图。
图5是图2所示的冰箱的旋钮机构防凝露方法的流程图。
具体实施方式
图1是根据本发明一个实施例的旋钮机构100的分解示意图。图2是具有图1所示的旋钮机构100的冰箱200的侧视图。本发明实施例的旋钮机构100包括：底座101、壳体102、盖板105、显示屏103和加热丝106。具有该旋钮机构100的冰箱200如图2所示，一般性包括：箱体201和门体202。箱体201内限定有储物间室，可以包括冷藏间室、冷冻间室和变温间室等等。在图2所示的冰箱200中，位于上部的储物间室为冷藏间室210，其下方依次为变温间室和冷冻间室，其中在冷藏间室210的前侧设置有枢转式门体202，而变温间室和冷冻间室分别是设置了第一抽拉式储物装置203和第二抽拉式储物装置204。此外，在冷藏间室210内还设置有储物抽屉211。如图2所示，旋钮机构100靠近冷藏间室210的顶部沿前后方向设置。如图1 所示，该旋钮机构100的壳体102具有通孔，前侧由盖板105密封，后侧与底座101连接。壳体102一般是圆筒形结构，通孔是贯穿壳体102的前后方向的孔，在壳体102的外壁上设置有若干防滑凸棱，以方便用户转动。盖板105可以是玻璃盖板。底座101的具体结构可以参考现有技术中的底座101结构，在此不进行限定，满足能与冰箱200的储物间室或者储物间室内的部件例如灯座等固定即可。显示屏103设置于盖板105后方，用于显示数据信息。数据信息包括不限于间室温度信息、间室湿度信息等等。加热丝106设置于壳体102内，用于调节旋钮机构100内部的湿度以防凝露。本发明实施例的旋钮机构100通过在壳体102内设置加热丝106，可以有效去除旋钮机构100内的水汽，防止产生凝露，进而使旋钮机构100的显示始终清晰，提升用户观感和使用感受。优选将加热丝106设置于盖板105和显示屏103之间，考虑到凝露主要影响旋钮机构100的显示效果，也即盖板105和显示屏103部分，因此将加热丝106设置于盖板105和显示屏103之间可以更为精准的防止产生凝露。
本发明实施例的旋钮机构100的盖板105可以包括透明区域151和非透明区域；加热丝106对应非透明区域设置。将加热丝106设置成由非透明区域152覆盖，可以使整个旋钮机构100的外观更美观，提升用户感官体验。参考图1，在一些实施例中，透明区域151位于盖板105的中心；非透明区域152位于透明区域151的周侧，呈环形；加热丝106呈环状，对应环形的非透明区域152设置。环形加热丝106可以使整个旋钮机构100内部的加热更为均匀，避免出现局部过热的情形。
在一些实施例中，旋钮机构100还包括屏幕保护膜107，设置于加热丝106和显示屏103之间，用于使显示屏103与加热丝106隔离以避免加热丝106开启时损伤显示屏103。通过设置屏幕保护膜107可以避免加热丝106的热量过多影响显示屏103，以免影响显示屏103的使用寿命。
继续参考图1，本发明实施例的旋钮机构100还包括：湿度检测装置108，设置于旋钮机构100内，用于检测旋钮机构100内部的湿度。本实用新型的旋钮机构100通过在壳体102内设置湿度检测装置108，可以实时检测旋钮机构100内部的湿度，基于该湿度值可以方便控制加热丝106的运行。此时，显示屏103显示的数据信息还可以包括旋钮湿度信息、加热丝运行状态、加热丝加热功率等等。
本发明实施例的旋钮机构100还包括：控制单元104，设置于显示屏103后方，包括PCB板和MCU，MCU电连接于PCB板，用于向显示屏103输出数据信息以及控制加热丝106动作。PCB板上设计有湿度检测电路并搭载湿度检测装置108等。控制单元104可以控制显示屏103显示旋钮机构100的工作状态，例如控制显示屏103显示当前的间室功能或间室温度档位值；可以与冰箱200的主控板205建立通讯关系，接收主控板205发送的数据并进行相应的功能调节，同时在设定完成后再进行相应的应答信号回传；还可以控制加热丝106的工作，使得加热丝106按照相应的控制逻辑进行工作。通过对旋钮机构100设置单独的控制单元104可以使旋钮机构100的控制与冰箱200的控制既保持独立又保持配合，在仅涉及旋钮机构100内部控制时无需再由主控板205控制，可以提高控制效率。
为了方便描述，下文中以冷藏间室210为例，对本发明的旋钮机构100的防凝露方法进行详述。可以理解，第一抽拉式储物装置203对应的变温间室内也可以设置旋钮机构100，此时门体的开关情况即第一抽拉式储物装置203的抽出和推入；同样，第二抽拉式储物装置204对应的冷冻间室内也可以设置旋钮机构100，此时门体的开关情况即第二抽拉式储物装置204的抽出和推入。
图3是图2所示的冰箱200的旋钮机构100防凝露方法的示意图，该冰箱200的旋钮机构100防凝露方法包括以下步骤：
S102：获取冷藏间室210的门体202的开关情况；
S104：获取旋钮机构100内部的湿度；
S106：基于门体202的开关情况和旋钮机构100内部的湿度控制加热丝106动作。
本发明实施例的冰箱200的旋钮机构100防凝露方法是基于门体202的开关情况和旋钮机构100内部的湿度控制加热丝106动作，充分考虑了影响旋钮机构100内部湿度的主要因素，同时加热丝106的控制要考虑旋钮机构100内部的实际湿度，可以有效避免频繁开停加热丝106，实现节能和高效控制。图4是图2所示的冰箱200的部分部件组成框图。控制单元104可以包括处理器140和存储器141，存储器141内存储有计算机程序142，并且计算机程序142被处理器140执行时用于实现冰箱200的旋钮机构100防凝露方法的控制方法。具体地，门体202的开关情况可以由门开关检测装置206 检测得到，并发送给冰箱200的主控板205。冰箱200的主控板205与旋钮机构100的控制单元104通讯，接收门开关检测装置206检测得到的信号，进而获得冷藏间室210的门体202的开关情况。同时，控制单元104还基于湿度检测装置108来获取旋钮机构100内部的湿度。处理器140对获取的各种信息处理后控制加热丝106动作。
在一些实施例中，基于门体202的开关情况和旋钮机构100内部的湿度控制加热丝106动作的步骤包括：
在冰箱200运行过程中，判断是否接收到门体202的开启信号；
当接收到开启信号时，获取旋钮机构100内部的湿度，得到第一旋钮湿度值，并判断第一旋钮湿度值是否大于等于预设的第一湿度阈值；
当第一旋钮湿度值大于等于第一湿度阈值时，按照预设的映射关系确定出加热丝106的加热功率并控制加热丝106开始加热，其中映射关系中限定有旋钮湿度范围值对应的加热丝106的加热功率。
考虑到门体202开启对旋钮机构100内部的湿度变化影响较大，本发明实施例的方法中提出首先判断是否接收到门体202的开启信号。在接收到开启信号后，虽然会带来旋钮机构100内部湿度的变化，但本发明的方法限定只有当第一旋钮湿度值大于等于第一湿度阈值时才控制加热丝106开始加热，这样可以避免频繁启动加热丝106加热，使控制简化。在当第一旋钮湿度值大于等于第一湿度阈值时，本发明的方法又设置了多层次的加热功率，使得加热丝106的加热状态与旋钮机构100内部的实际湿度更为匹配，其中第一旋钮湿度值越大，其对应的加热功率越高。例如，旋钮机构100内部的湿度的范围假定为5％-60％，第一湿度阈值可以30％-40％，例如30％、35％、40％。以第一湿度阈值为30％为例，在预设的映射关系中，可以将30％-60％的区间划分为3个连续区间，第一区间为30％-40％，对应的加热功率为W 1；第二区间为40％-50％，对应的加热功率为W 2；第一区间为50％-60％，对应的加热功率为W 3；W 1＜W 2＜W 3。加热丝106的不同的加热功率的实现可以是设计多路开关来控制不同的电源连通加热丝106。连续区间的个数可以按照需要设置，通常为3-5个，既能实现多层次控制，又不过多增加控制开关。
在一些实施例中，在控制加热丝106按加热功率加热的步骤之后，还包括：
判断门体202是否关闭；
当门体202关闭时，获取旋钮机构100内部的湿度，得到第二旋钮湿度值，并判断第二旋钮湿度值是否小于等于预设的第二湿度阈值；并且当第二旋钮湿度值小于等于第二湿度阈值时，控制加热丝106停止加热；
当门体202未关闭时，获取冷藏间室210的温度，得到第一间室温度，并判断第一间室温度是否大于等于预设的第一温度阈值；并且当第一间室温度大于等于第一温度阈值时，控制加热丝106停止加热。
在控制加热丝106按加热功率加热一段时间之后，在门体202正常关闭时，当旋钮机构100内部的湿度已经低于第二湿度阈值，可以认为无凝露风险，此时控制加热丝106停止。第二湿度阈值小于第一湿度阈值，可以是5％-10％，例如5％、7％、10％。在门体202未正常关闭时，此时加热丝106的停止是基于间室的温度与第一温度阈值的大小关系来确定，是考虑到门体202未关闭的情况下，冷藏间室210的空气不断与周围环境的空气流通，当冷藏间室210的温度接近周围环境的温度时，可以认为旋钮机构100不存在凝露风险，此时控制加热丝106停止。冷藏间室210的温度的获取可以是通过设置于冷藏间室210内的温度检测装置207实现。第一温度阈值可以与通常的室温接近，约20℃-25℃，例如20℃、22℃、25℃。
在一些实施例中，当未接收到门体202的开启信号时，判断门体202的关闭时间是否已超过一个制冷周期；
当门体202的关闭时间未超过一个制冷周期时，获取冷藏间室210的温度，得到第二间室温度，并判断第二间室温度是否小于等于预设的第二温度阈值；
当第二间室温度小于等于第二温度阈值时，获取旋钮机构100内部的湿度，得到第三旋钮湿度值，并判断第三旋钮湿度值是否大于等于第一湿度阈值；
当第三旋钮湿度值大于等于第一湿度阈值时，间歇控制加热丝106加热。
当在一个制冷周期内，门体202始终未被打开时，可以初步认为旋钮机构100内部的湿度变化不大，此时，先判断间室的温度与第二温度阈值的大小，即确认冷藏间室210的当前状态已经较为稳定，之后再考虑旋钮机构100内部的湿度。第二温度阈值可以与通常的储物间室的目标温度接近，例如对冷藏间室210，一般目标温度在3℃-5℃，第二温度阈值可以设置成3℃-5℃， 例如3℃、4℃、5℃；再例如，对冷冻间室，一般目标温度在-18℃-(-20℃)，相应的，第二温度阈值可以设置成-18℃-(-20℃)，例如-18℃、-19℃、-20℃。也就是说，冰箱200可以设置有多个第二温度阈值，分别对应处于不同储物间室的旋钮机构100。此外，本发明的方法在门体202未打开的情况下，当旋钮湿度值大于等于第一湿度阈值时，间歇控制加热丝106加热，利用加热丝106间歇加热来避免冰箱200长时间制冷工作产生冷气凝露，同时尽量节能。在一些实施例中，间歇控制加热丝106加热的步骤包括：控制加热丝106重复多个加热周期，其中在每个加热周期内，加热丝106开启加热第一预设时间后停止第二预设时间，之后进行下一个加热周期。第一预设时间可以是5-10s，例如5s、8s、10s。第二预设时间可以与第一预设时间相同或不相同。第二预设时间可以是5-10s，例如5s、7s、10s。在加热丝106间歇加热时，可以是以首次测得的第三旋钮湿度值依照前文中所述的映射关系对应出的加热功率来控制加热丝106间歇加热，也可以是单独预设一个间歇加热功率。
在一些实施例中，在间歇控制加热丝106加热的步骤之后，还包括：
获取旋钮机构100内部的湿度，得到第四旋钮湿度值，并判断第四旋钮湿度值是否小于等于第二湿度阈值；
当第四旋钮湿度值小于等于第二湿度阈值时，控制加热丝106停止加热。
同样地，在间歇控制加热丝106加热的步骤之后，在当旋钮机构100内部的湿度已经低于第二湿度阈值，可以认为无凝露风险，此时控制加热丝106停止。
本发明首次提出针对门体202的不同开关情况以及旋钮机构100内部的不同湿度来控制加热丝106的运行，使得控制逻辑与旋钮机构100内部的实际状况更为匹配，同时使整个防凝露方法更为简单和节能。
图5是图2所示的冰箱200的旋钮机构100防凝露方法的流程图。该冰箱200的旋钮机构100防凝露方法包括以下步骤：
S202：判断是否接收到冷藏间室210的门体202的开启信号。
S204：当步骤S202的判断结果为是时，获取旋钮机构100内部的湿度，得到第一旋钮湿度值。
S206：判断第一旋钮湿度值是否大于等于第一湿度阈值。
S208：当步骤S206的判断结果为是时，按照预设的映射关系确定加热功率并控制加热丝106开始加热。当步骤S206的判断结果为否时，加热丝 106不动作，继续进行步骤S204，直至步骤S206的判断结果为是。
S210：在按照步骤S208控制加热丝106加热第一预设时长后，判断门体202是否关闭。第一预设时长可以是通常用户开关冰箱200的门体202的间隔时长，可以是10s-2min，例如10s、1min、2min。
S212：当步骤S210的判断结果为是时，获取旋钮机构100内部的湿度，得到第二旋钮湿度值，并判断第二旋钮湿度值是否小于等于第二湿度阈值。
S214：当步骤S212的判断结果为是时，控制加热丝106停止加热。当步骤S212的判断结果为否时，继续执行步骤S208和步骤S210，直至步骤S212的判断结果为是。可以理解，当步骤S212的判断结果为否时，也可以仅进行步骤S208，直至步骤S212的判断结果为是。
S216：当步骤S210的判断结果为否时，获取冷藏间室210的温度，得到第一间室温度。
S218：判断第一间室温度是否大于等于第一温度阈值。当步骤S218的判断结果为是时，控制加热丝106停止加热。当步骤S218的判断结果为否时，继续进行步骤S216，直至步骤S218的判断结果为是。
S220：当步骤S202的判断结果为否时，判断门体202的关闭时间是否超过一个制冷周期。
S222：当步骤S220的判断结果为否时，获取冷藏间室210的温度，得到第二间室温度。
S224：判断第二间室温度是否小于等于第二温度阈值。
S226：当步骤S224的判断结果为是时，获取旋钮机构100内部的湿度，得到第三旋钮湿度值。
S228：判断第三旋钮湿度值是否大于等于第一湿度阈值。
S230：当步骤S228的判断结果为是时，间歇控制加热丝106加热。
S232：在按照步骤S230间歇控制加热丝106加热第二预设时长后，获取旋钮机构100内部的湿度，得到第四旋钮湿度值，并判断第四旋钮湿度值是否小于等于第二湿度阈值。第二预设时长可以是10s-1min，例如10s、30s、1min。
S234：当步骤S232的判断结果为是时，控制加热丝106停止加热。
本发明实施例的旋钮机构100通过在壳体102内设置加热丝106，并将加热丝106设置于盖板105和显示屏103之间，可以有效去除旋钮机构100 内的水汽，防止产生凝露，进而使旋钮机构100的显示始终清晰，提升用户观感和使用感受。
进一步地，本发明实施例的冰箱200的旋钮机构100防凝露方法是基于门体202的开关情况和旋钮机构100内部的湿度控制加热丝106动作，充分考虑了影响旋钮机构100内部湿度的因素，同时加热丝106的控制要考虑旋钮机构100内部的实时湿度，可以有效避免频繁开停加热丝106，实现节能和高效控制。
至此，本领域技术人员应认识到，虽然本文已详尽示出和描述了本发明的多个示例性实施例，但是，在不脱离本发明精神和范围的情况下，仍可根据本发明公开的内容直接确定或推导出符合本发明原理的许多其他变型或修改。因此，本发明的范围应被理解和认定为覆盖了所有这些其他变型或修改。

Claims (10)

  1. 一种旋钮机构，包括：底座、壳体、盖板、显示屏和加热丝；
    所述壳体具有通孔，前侧由所述盖板密封，后侧与所述底座连接；
    所述显示屏设置于所述盖板后方，用于显示数据信息；
    所述加热丝设置于所述盖板和所述显示屏之间，用于调节所述旋钮机构内部的湿度以防凝露。
  2. 根据权利要求1所述的旋钮机构，还包括：
    湿度检测装置，设置于所述旋钮机构内，用于检测所述旋钮机构内部的湿度。
  3. 根据权利要求1所述的旋钮机构，还包括：
    控制单元，设置于所述显示屏后方，包括PCB板和MCU，所述MCU电连接于所述PCB板，用于向所述显示屏输出数据信息以及控制所述加热丝动作。
  4. 一种冰箱，所述冰箱的储物间室内设置有根据权利要求1-3任一所述的旋钮机构。
  5. 一种如权利要求4所述的冰箱的旋钮机构防凝露方法，包括：
    获取所述储物间室的门体的开关情况；
    获取所述旋钮机构内部的湿度；
    基于所述门体的开关情况和所述旋钮机构内部的湿度控制所述加热丝动作。
  6. 根据权利要求5所述的方法，其中，所述基于所述门体的开关情况和所述旋钮机构内部的湿度控制所述加热丝动作的步骤包括：
    在所述冰箱运行过程中，判断是否接收到所述门体的开启信号；
    当接收到所述门体的开启信号时，获取所述旋钮机构内部的湿度，得到第一旋钮湿度值，并判断所述第一旋钮湿度值是否大于等于预设的第一湿度阈值；
    当所述第一旋钮湿度值大于等于所述第一湿度阈值时，按照预设的映射关系确定出所述加热丝的加热功率并控制所述加热丝开始加热，其中所述映射关系中限定有旋钮湿度范围值对应的所述加热丝的加热功率。
  7. 根据权利要求6所述的方法，其中，在控制所述加热丝按所述加热功率加热的步骤之后，还包括：
    判断所述门体是否关闭；
    当所述门体关闭时，获取所述旋钮机构内部的湿度，得到第二旋钮湿度值，并判断所述第二旋钮湿度值是否小于等于预设的第二湿度阈值；并且当所述第二旋钮湿度值小于等于所述第二湿度阈值时，控制所述加热丝停止加热；
    当所述门体未关闭时，获取所述储物间室的温度，得到第一间室温度，并判断所述第一间室温度是否大于等于预设的第一温度阈值；并且当所述第一间室温度大于等于所述第一温度阈值时，控制所述加热丝停止加热。
  8. 根据权利要求6所述的方法，其中，
    当未接收到所述开启信号时，判断所述门体的关闭时间是否已超过一个制冷周期；
    当所述门体的关闭时间未超过一个所述制冷周期时，获取所述储物间室的温度，得到第二间室温度，并判断所述第二间室温度是否小于等于预设的第二温度阈值；
    当所述第二间室温度小于等于所述第二温度阈值时，获取所述旋钮机构内部的湿度，得到第三旋钮湿度值，并判断所述第三旋钮湿度值是否大于等于所述第一湿度阈值；
    当所述第三旋钮湿度值大于等于所述第一湿度阈值时，间歇控制所述加热丝加热。
  9. 根据权利要求8所述的方法，其中，
    所述间歇控制所述加热丝加热的步骤包括：控制所述加热丝重复多个加热周期，其中在每个所述加热周期内，所述加热丝开启加热第一预设时间后停止第二预设时间，之后进行下一个所述加热周期。
  10. 根据权利要求8所述的方法，其中，在所述间歇控制所述加热丝加热的步骤之后，还包括：
    获取所述旋钮机构内部的湿度，得到第四旋钮湿度值，并判断所述第四旋钮湿度值是否小于等于预设的第二湿度阈值；
    当所述第四旋钮湿度值小于等于所述第二湿度阈值时，控制所述加热丝停止加热。
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