CN105333678B - Automatic humidity adjusting device, refrigerator with same and control method - Google Patents
Automatic humidity adjusting device, refrigerator with same and control method Download PDFInfo
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- CN105333678B CN105333678B CN201410383927.8A CN201410383927A CN105333678B CN 105333678 B CN105333678 B CN 105333678B CN 201410383927 A CN201410383927 A CN 201410383927A CN 105333678 B CN105333678 B CN 105333678B
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- humidity
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- moisture
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- permeable film
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- 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
- F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
- F25D17/04—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
- F25D17/042—Air treating means within refrigerated spaces
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- 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
- F25D2317/00—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass
- F25D2317/04—Treating air flowing to refrigeration compartments
- F25D2317/041—Treating air flowing to refrigeration compartments by purification
- F25D2317/0413—Treating air flowing to refrigeration compartments by purification by humidification
- F25D2317/04131—Control means therefor
Abstract
The invention provides an automatic humidity adjusting device, a refrigerator with the same and a control method for automatic humidity adjustment of the refrigerator, comprising: a case (10); a cover (20) in which a moisture-permeable film (201) is formed at least in part, the cover movably sealing the case, and the exposure area of the moisture-permeable film being adjustable by movable adjustment of the cover; a drive unit (30) for driving the cover to perform movable adjustment; an air supply part (40) which supplies air into the box body; a humidity sensor (50) for detecting the humidity in the box body; and a control unit (60) for controlling the operation of the drive unit and the air supply unit based on the humidity detected by the humidity sensor. According to the invention, the humidity in the box body can be quickly and automatically adjusted within a wider humidity range.
Description
Technical Field
The present invention relates to an automatic humidity control device, a refrigerator having the same, and a control method for automatic humidity control of the refrigerator.
Background
In the prior art refrigerator, due to the operation characteristics of the refrigeration system, a relatively stable relative humidity is generally maintained in the refrigerator in practical use. The humidity is directly related to the type of a refrigeration system (direct cooling or air cooling) of the refrigerator, the temperature setting in the refrigerator, the type of articles to be placed and the like. For the more and more diversified articles placed in the refrigerator, different types of articles (such as green vegetables and cakes) need different suitable temperature and humidity settings, so that on the basis of realizing temperature variation, if the optimal adjustment of humidity cannot be realized at the same time, the optimal effect on the storage of the articles inside cannot be achieved.
There are techniques developed by refrigerator manufacturers to maintain a single humidity zone in a local space of a refrigerator, such as a high humidity chamber for storing fruits and vegetables or a low humidity chamber for storing dry goods. However, the disadvantages of the above techniques are also obvious, i.e., the high humidity chamber can only be used for storing articles requiring the relative humidity of the environment to be above the original humidity of the refrigerator, such as green vegetables and the like; the low-humidity area can only be suitable for storing articles requiring the relative humidity of the environment to be lower than the original humidity of the refrigerator, such as dry goods and the like. But not have the ability of adjusting the environmental humidity in the area in a wide range according to the requirement that different articles have different optimal storage environmental humidities in the same area.
In addition, the method can be used for the existing high-humidity region or low-humidity region with single function. Due to the limitation of the applied humidity adjusting technology, the problem that the dynamic change of the environmental humidity in the functional interval cannot be effectively corresponded, so that the optimal humidity of the stored articles cannot be adjusted in time often exists.
Patent document 1 describes a refrigerator including a vegetable compartment formed in a lower portion of a refrigerating compartment, a partition plate for closing an upper opening of the vegetable compartment, a ventilation portion formed in the partition plate, and a sensor for detecting humidity in the temperature of the vegetable compartment, a control device for controlling a drive unit for opening and closing the ventilation portion based on the sensor to adjust the humidity in the vegetable compartment, and an inclined plate having a through hole and covering an upper portion of the ventilation portion. However, although the humidity in the vegetable room can be automatically adjusted in patent document 1, the humidity cannot be adjusted to a large extent only by the moisture permeable film in the ventilation part, and the time required for adjusting the humidity to the target humidity is also long.
Patent document 1: japanese laid-open patent publication No. Hei 1-310283
Disclosure of Invention
The present invention has been made in view of the above problems, and an object thereof is to provide an automatic humidity control device capable of automatically and quickly controlling humidity in a box body in a wide humidity range, a refrigerator having the same, and a method for controlling automatic humidity control of a refrigerator.
The automatic humidity control device of the present invention is characterized by comprising: a box body; a lid portion in which a moisture-permeable film is formed at least in part, the lid portion sealing the case in a movable manner, and an exposure area of the moisture-permeable film being adjustable by movable adjustment of the lid portion; a drive unit that drives the lid unit to be movably adjusted; an air supply part which supplies air into the box body; the humidity sensor is used for detecting the humidity in the box body; and a control unit for controlling the operation of the drive unit and the air supply unit according to the humidity detected by the humidity sensor.
According to the automatic humidity adjusting device, a moisture migration channel between the inside and the outside of the box body can be formed, so that the humidity in the box body can be quickly and automatically adjusted in a wider humidity range.
In the automatic humidity control apparatus according to the present invention, it is preferable that the lid portion is composed of an upper lid and a lower lid, a moisture permeable film is formed on at least a part of the lower lid, and the upper lid seals the case together with the lower lid in a movable manner. With this configuration, the exposed area of the moisture-permeable film can be changed by moving the upper cover, and the humidity in the case can be adjusted with a simple configuration.
In the automatic humidity control apparatus according to the present invention, it is preferable that the air blower blows the air to the moisture-permeable film at a height not lower than the height of the moisture-permeable film, and the air blows from above the case to form an air pressure gradient between the inside and the outside of the case. According to the structure, local negative pressure is formed in the area close to the moisture permeable film, so that the air in the box is promoted to be exchanged to the outside, and the humidity in the box can be quickly adjusted.
In the automatic humidity control apparatus according to the present invention, it is preferable that the driving unit includes a motor, the motor is provided with a gear, and the upper cover is provided with a rack engaged with the gear. According to the structure, the exposure area of the moisture permeable film can be automatically controlled, so that the automatic control of the humidity in the box body is realized.
In the automatic humidity control apparatus according to the present invention, the motor is preferably a stepping motor. According to the structure, the humidity in the box body can be more accurately and automatically controlled.
In the automatic humidity control apparatus according to the present invention, it is preferable that the control unit stores in advance a correspondence relationship between each article type and an optimum storage target humidity thereof, and the control unit controls the operation of the driving unit and the operation of the air blowing unit based on a difference between the humidity detected by the humidity sensor and the optimum storage target humidity. According to such a structure, the humidity in the case can be intelligently adjusted according to the types of the articles stored in the case.
In the automatic humidity control apparatus according to the present invention, it is preferable that the automatic humidity control apparatus further includes a temperature sensor that detects a temperature in the case, and the control unit further controls the operation of the driving unit and the air blowing unit based on a difference between the temperature detected by the temperature sensor and a target temperature in the case. According to the structure, the aim of quickly adjusting the internal temperature of the box body can be achieved through the combination of the on-off control of the air supply part and the size control of the ventilation area.
In the automatic humidity control apparatus according to the present invention, the upper cover may be an inclined surface gradually increasing in a flow direction of the air, and an inclination angle of the inclined surface may be 0 to 30 degrees. According to such structure, when the air flows through the upper part of the moisture permeable film, a negative pressure space is formed in the partial space of the perspective film outside (the box body), which is beneficial to the moisture exchange between the moisture-containing air inside the box body and the external air, thereby adjusting the humidity in the box body more quickly.
In the automatic humidity control device according to the present invention, it is preferable that the upper cover and the moisture permeable film are in a grid shape that can be covered in a staggered manner. With this configuration, a moisture-permeable film can be exposed from 0 to 100% at a relatively small rotation angle of the drive motor.
In addition, in the automatic humidity control device of the present invention, preferably, the motor performs bidirectional fixed-distance operation of the motor rotor according to current polarity or phase adjustment, and a displacement sensing point is provided on the upper cover. According to the structure, the motor stroke can be conveniently judged, so that the exposed area (proportion) of the moisture-permeable film can be effectively controlled, and the relative humidity of air in the box can be controlled.
In the automatic humidity control device according to the present invention, it is preferable that the moisture-permeable film is a perforated film made of at least one organic fiber selected from the group consisting of polypropylene, polyester, spandex, polyamide, viscose, acrylic, polyethylene, and polyvinyl chloride. With such a structure, a relatively preferable moisture permeation effect can be achieved.
In the automatic humidity control device of the present invention, the moisture-permeable film preferably has a moisture permeability of more than 100g/m224 h. According to thisThe structure of appearance is favorable to the high-efficient moisture transfer channel in the air that forms the box internal and external.
In the automatic humidity control apparatus according to the present invention, it is preferable that at least one surface of the upper cover and the lower cover which slide relative to each other is provided with a rib or a roller along the sliding direction. According to this structure, the friction force of the relative sliding of the upper cover and the lower cover can be reduced.
In the automatic humidity control apparatus according to the present invention, it is preferable that a gap between the lid and the case is within 1.0mm in a state where the lid and the case are sealed. According to the structure, the relative sealing performance required by the box body and the outside can be maintained, and the reliability of the performance is improved.
Another object of the present invention is to provide a refrigerator having the automatic humidity control apparatus. According to the refrigerator, the humidity in the refrigerator chamber can be quickly and automatically adjusted in a wider humidity range.
In the refrigerator according to the present invention, preferably, the refrigerator is an air-cooled refrigerator, and the air blowing unit is configured by a damper and a fan and is disposed in an outflow direction of air flowing through the evaporator. According to the structure, the air supply part can be formed by utilizing the original air channel structure in the refrigerator, so that the structure of the refrigerator is not required to be changed, and the function of automatically adjusting the humidity in the refrigerator room can be realized only by changing the control mode of the air supply part.
In the refrigerator according to the present invention, the refrigerator is a direct-cooling refrigerator, and the air blowing unit is formed of a fan and is provided at a position close to the evaporator. According to the structure, cold air near the evaporator can be blown into the box body, so that the humidity in the refrigerator compartment can be quickly adjusted.
In the refrigerator according to the present invention, the refrigerator includes a heater, and the air blowing unit is formed of a fan and is provided at a position close to the heater. According to the structure, warm and humid air near the heater can be blown into the box body, so that the humidity in the refrigerator compartment can be quickly adjusted.
Another object of the present invention is to provide a method for controlling automatic humidity control in a refrigerator including the automatic humidity control apparatus, the method comprising: a detection step: the humidity sensor detects the humidity in the box body; a comparison step: comparing the humidity measured in the detecting step with an optimum preservation target humidity corresponding to each article type; and an adjusting step of adjusting the exposed area of the moisture-permeable film by driving the cover to be movable and adjusted by the driving unit and adjusting the air speed or the air volume by the air blowing unit, based on the comparison result in the comparing step. According to the control method provided by the invention, the humidity in the box body can be quickly and automatically adjusted in a wider humidity range.
Drawings
Fig. 1 is a schematic view illustrating an automatic humidity control apparatus according to embodiment 1 of the present invention installed in a refrigerator.
Fig. 2 is a perspective view showing a case and a cover of an automatic humidity control apparatus according to embodiment 1 of the present invention.
Fig. 3 is a sectional view showing a case and a cover of an automatic humidity control apparatus according to embodiment 1 of the present invention.
Fig. 4 is a schematic view showing that a cover portion of an automatic humidity control apparatus according to embodiment 1 of the present invention has an inclined surface.
Fig. 5 is a schematic view showing that the cover and the moisture permeable film of the automatic humidity control apparatus according to embodiment 1 of the present invention have a grid shape.
Fig. 6 is a schematic view showing a refrigerator according to embodiment 2 of the present invention.
Fig. 7 is a schematic view showing a refrigerator according to embodiment 3 of the present invention.
Fig. 8 is a flowchart illustrating a method for controlling automatic humidity adjustment of a refrigerator according to the present invention.
Detailed Description
The invention is explained in more detail below with reference to the figures and examples.
Preferred embodiments of a surface emitting structure and a refrigerator having the same according to the present invention will be described in detail below with reference to the accompanying drawings. In the description of the drawings, the same or corresponding portions are denoted by the same reference numerals, and redundant description is omitted.
< embodiment 1 >
Fig. 1 is a schematic view illustrating an automatic humidity control apparatus according to embodiment 1 of the present invention installed in a refrigerator. Fig. 2 and 3 are a perspective view and a sectional view respectively showing a case and a cover of an automatic humidity control apparatus according to embodiment 1 of the present invention. As shown in fig. 1 to 3, an automatic humidity control apparatus 1 according to the present embodiment includes: box 10, lid 20, drive unit 30, air-blowing unit 40, humidity sensor 50, and control unit 60. The moisture permeable film 201 is formed at least in part on the lid 20, the case 10 is sealed by the lid 20 so as to be movable, and the exposed area of the moisture permeable film 201 can be adjusted by adjusting the movement of the lid 20. The driving unit 30 drives the lid unit 20 to be movably adjusted. The blower 40 sends air into the case 10. The humidity sensor 50 detects humidity inside the case 10. The controller 60 controls the operation of the driver 30 and the blower 40 based on the humidity detected by the humidity sensor 50.
In addition, it is preferable that the lid portion 20 is composed of an upper lid 202 and a lower lid 203, at least a part of the lower lid 203 is formed with a moisture permeable film 201, and the upper lid 202 seals the box body together with the lower lid 203 in a movable manner. For example, as shown in fig. 2, a moisture permeable film 201 is embedded in a part of a lower cover 203, and a rail capable of sliding an upper cover 202 along the lower cover 203 is provided on the lower cover 203. The upper cover 202 is provided so as to cover the entire moisture-permeable film 201. The exposed area of the moisture permeable film 201 can be adjusted by sliding the upper cover 202.
Further, it is preferable that the air blowing unit 40 blows air to the moisture-permeable film 201 at a height not lower than the height of the moisture-permeable film 201, and the air blows from above the case 10, thereby forming an air pressure gradient inside and outside the case 10. Thus, local negative pressure is formed in the area close to the moisture-permeable film 201, and the air in the box body is promoted to be exchanged to the outside. In addition, the moisture in the box body is promoted to be discharged outwards due to the influence of air pressure gradient formed on two sides of the moisture permeable film outside and inside the box.
In addition, the driving part 30 preferably includes a motor 301, preferably a stepping motor from the viewpoint of precise control. As shown in fig. 3, a gear 302 is provided on the motor 301, and a rack 303 that meshes with the gear 302 is provided on the upper cover 202. Thus, the upper cover 202 and the lower cover 203 can be surely displaced relative to each other in accordance with the control request, and the moisture-permeable film 201 for shielding and exposing the lower cover 203 can be controlled. Whether the moisture-permeable film 201 is completely covered or exposed in a certain area depends on the humidity control requirement of the air in the box 10.
Preferably, the control unit 60 stores in advance a correspondence relationship between each article type and the optimum storage target humidity thereof, and the control unit 60 controls the operation of the driving unit 30 and the blowing unit 40 based on a difference between the humidity detected by the humidity sensor 50 and the optimum storage target humidity. Specifically, the control unit 60 may include a plurality of databases storing the correspondence between each article type and the optimum storage target humidity, and these databases may be stored in any storage device such as a hard disk, a memory, or a removable storage medium provided in the control unit 60 or accessible to the control unit 60. After the type of the article is selected through the input interface, the purpose of automatically controlling the humidity in the box body is realized by comprehensively adjusting the exposed area of the moisture-permeable film and the blowing time or blowing intensity of dry/humid air according to the difference value between the current humidity and the optimal storage target humidity.
Preferably, the automatic humidity control apparatus 1 further includes a temperature sensor (not shown) for detecting a temperature in the casing 10, and the control unit 60 controls the operation of the driving unit 30 and the air blowing unit 40 based on a difference between the temperature detected by the temperature sensor and a target temperature in the casing 10. When the automatic humidity control apparatus 100 is installed in a refrigerator, the temperature inside the apparatus can be rapidly controlled by the combination of the on/off control of the air supply part 40 and the size control of the ventilation area. For example, in the case where the area of the moisture-permeable film 201 is exposed to the maximum, the temperature in the case 10 is advantageously rapidly decreased. When the area of the moisture-permeable film 201 is not exposed, the fluctuation of the internal temperature of the case 10 can be reduced.
Fig. 4 is a schematic view showing that the lid portion 20 of the automatic humidity control apparatus 1 according to embodiment 1 of the present invention has an inclined surface. Preferably, as shown in fig. 4, the upper cover 202 is an inclined surface 204 gradually rising in the flow direction of the air blown out of the air blowing part 40, and the inclined angle of the inclined surface 204 is preferably 0 to 30 degrees. The inclined surface 204 functions to: when air flows over the moisture-permeable film 201, a negative pressure space 205 is formed in a partial space of the see-through film 201 outside the box body 10, which is beneficial to moisture exchange between the moisture-containing air inside the box body 10 and the outside air through the film 201, thereby adjusting the humidity inside the box body 10 more quickly.
Fig. 5 is a schematic view showing that the cover 20 and the moisture permeable film 201 of the automatic humidity control apparatus 1 according to embodiment 1 of the present invention have a grid shape. As shown in fig. 5, the upper cover 202 and the moisture-permeable film 201 are preferably in a grid shape that can be covered by being displaced. With this configuration, the moisture-permeable film 201 can be exposed to a level of from 0 to 100% with a relatively small driving motor rotation angle.
In addition, the motor 301 preferably realizes bidirectional fixed-distance operation of the motor rotor according to current polarity or phase adjustment, and a displacement sensing point is arranged on the upper cover 202. With such a configuration, the stroke of the motor 301 can be easily determined, and the exposed area (ratio) of the moisture-permeable film can be effectively controlled, thereby controlling the relative humidity of the air in the case. In addition, a stepping motor that can operate according to an angle stroke instruction may be preferentially used; and the angle stroke control parameter of the stepping motor is corresponded with the required exposed area (ratio) of the moisture permeable film 201 in the control program, thereby reliably realizing the control of the relative humidity of the air in the box body 10.
Further, the moisture-permeable film 201 is preferably a perforated film made of at least one organic fiber selected from polypropylene, polyester, spandex, polyamide, viscose, acrylic, polyethylene, and polyvinyl chloride. The moisture-permeable film 201 may be, for example, a nonwoven fabric or a composite film comprising a nonwoven fabric as a base material and another fiber film. In order to achieve a relatively desirable moisture permeation effect, it is preferable to use a microporous film coated with a hydrophilic compound which absorbs moisture in the air in the case 10 and then dries the air outside the caseA larger humidity gradient is formed, which is beneficial to efficiently forming a moisture transfer channel in the air inside and outside the box body. In actual use tests, the moisture permeability is more than 100g/m according to the standard GB/T12704.1-2009224h of film is available as the moisture-permeable film mentioned in the present application.
In addition, it is preferable that at least one surface of the upper cover 202 and the lower cover 203 which slide relative to each other is provided with a rib or a roller along the sliding direction. With this structure, the frictional force of the upper cover 202 and the lower cover 203 sliding relative to each other can be reduced.
In addition, it is preferable that the gap between the lid 20 and the case 10 is within 1.0mm in a state where the lid 20 and the case are hermetically sealed. According to such a structure, the relative sealing performance required for the case 10 from the outside can be maintained, thereby improving the reliability of the performance. In addition, the lower cover 203 can be directly or indirectly fixed with the inner container through a buckle or a screw hole, and then a groove is arranged in the fixed lower cover 203 to place a humidity and temperature sensing probe, and the groove is covered with a hole cover structure. This makes it possible to effectively install a humidity sensor and a temperature sensor.
< embodiment 2 >
Fig. 6 is a schematic view illustrating a refrigerator 100 according to embodiment 2 of the present invention. The refrigerator 100 includes the automatic humidity control apparatus 1 according to embodiment 1, and preferably, the automatic humidity control apparatus 1 is installed in a temperature-variable chamber or a refrigerating chamber. Refrigerator 100 is an air-cooled refrigerator, and air blowing unit 40 is configured by a damper 401 and a fan 402, and is disposed in the outflow direction of air flowing through evaporator 110. Thus, the air passing through the evaporator 110 becomes dry cool air. Therefore, when the humidity in the automatic humidity control apparatus 1 needs to be lowered, the blowing unit 40 may increase the blowing amount to blow dry air to the automatic humidity control apparatus 1. Further, when it is not necessary to reduce the humidity in the automatic humidity control apparatus 1, the damper 401 of the blowing part 40 may be closed, thereby maintaining a high humidity in the automatic humidity control apparatus 1. According to the refrigerator 100 of the present embodiment, the air supply part 40 can be formed by using the original air duct structure of the refrigerator 100, so that the function of automatically adjusting the humidity in the refrigerator compartment can be realized by only changing the control mode of the air supply part without changing the structure of the refrigerator.
< embodiment 3 >
Fig. 7 is a schematic view illustrating a refrigerator 200 according to embodiment 3 of the present invention. The refrigerator 200 includes the automatic humidity control apparatus 1 according to embodiment 1, and preferably, the automatic humidity control apparatus 1 is installed in a temperature-variable chamber or a refrigerating chamber. Refrigerator 100 is a direct-cooling refrigerator, and blower 40 is formed by fan 403 and is disposed at a position close to evaporator 210. In this way, the cold air dried near the evaporator 210 can be blown toward the automatic humidity control apparatus 1 by the fan 403. The refrigerator 200 of the present embodiment can obtain substantially the same effects as the refrigerator 300 of embodiment 2.
The refrigerator according to the present invention is not limited to the above-described embodiments, and various other modifications are possible. For example, although the above embodiment illustrates the configuration in which the air blowing unit 40 is provided near the evaporator, the present invention is also applicable to a configuration in which the air blowing unit 40 is provided near the heater of the refrigerator. According to the structure, warm and humid air near the heater can be blown into the box body, so that the humidity in the refrigerator compartment can be quickly adjusted.
< method for controlling automatic humidity control >
Fig. 8 is a flowchart illustrating a method for controlling automatic humidity adjustment of a refrigerator according to the present invention. The control method for automatic humidity adjustment of a refrigerator according to the present invention is described below, and the control method includes: detection step (S11): the humidity sensor 50 detects the humidity inside the case 10; comparison step (S12): comparing the humidity measured in the detecting step with an optimum preservation target humidity corresponding to each article type; and an adjustment step (S13) in which, based on the comparison result in the comparison step, the drive unit 30 drives the lid unit 20 to movably adjust the exposed area of the moisture-permeable film, and the air blowing unit 40 adjusts the air speed or air volume. According to the control method provided by the invention, the humidity in the box body can be quickly and automatically adjusted in a wider humidity range.
While the invention has been specifically described above in connection with the drawings and examples, it will be understood that the above description is not intended to limit the invention in any way. Those skilled in the art can make modifications and variations to the present invention as needed without departing from the true spirit and scope of the invention, and such modifications and variations are within the scope of the invention.
Claims (18)
1. An automatic humidity adjusting device is characterized in that,
the disclosed device is provided with:
a box body;
a lid portion in which a moisture-permeable film is formed at least in part, the lid portion sealing the case in a movable manner, and an exposure area of the moisture-permeable film being adjustable by movable adjustment of the lid portion;
a drive unit that drives the lid unit to be movably adjusted;
an air supply part which supplies air into the box body;
the humidity sensor is used for detecting the humidity in the box body; and
a control unit for controlling the operation of the drive unit and the air supply unit according to the humidity detected by the humidity sensor,
the air supply part blows the air to the moisture-permeable film at a height not lower than that of the moisture-permeable film, the air is blown from the upper part of the box body along the moisture-permeable film, air pressure gradients at two sides of the moisture-permeable film inside and outside the box body are formed, and therefore local negative pressure is formed in a region close to the moisture-permeable film, and the air inside the box body is promoted to be exchanged to the outside.
2. The automatic humidity conditioning device of claim 1,
the lid portion is composed of an upper lid and a lower lid, at least a part of the lower lid is formed with a moisture-permeable film, and the upper lid seals the case body together with the lower lid in a movable manner.
3. The automatic humidity conditioning device of claim 2,
the driving part comprises a motor, a gear is arranged on the motor, and a rack meshed with the gear is arranged on the upper cover.
4. The automatic humidity conditioning device of claim 3,
the motor is a stepping motor.
5. Automatic humidity regulating device according to claim 1 or 2,
the control unit stores in advance a correspondence relationship between each article type and an optimum storage target humidity,
the control unit controls the operation of the driving unit and the air blowing unit based on a difference between the humidity detected by the humidity sensor and the optimum storage target humidity.
6. Automatic humidity regulating device according to claim 1 or 2,
the automatic humidity adjusting device is also provided with a temperature sensor for detecting the temperature in the box body,
the control part also controls the action of the driving part and the air supply part according to the difference between the temperature detected by the temperature sensor and the target temperature in the box body.
7. The automatic humidity conditioning device of claim 2,
the upper cover is an inclined plane gradually rising along the flowing direction of the air, and the inclination angle of the inclined plane is 0-30 degrees.
8. The automatic humidity conditioning device of claim 2,
the upper cover and the moisture permeable film are in a grid shape capable of being staggered and covered.
9. The automatic humidity conditioning device of claim 3,
the motor realizes bidirectional fixed-distance operation of a motor rotor according to current polarity or phase adjustment, and a displacement sensing point is arranged on the upper cover.
10. Automatic humidity regulating device according to claim 1 or 2,
the moisture permeable film is a porous film formed by at least one organic fiber selected from polypropylene fiber, terylene, spandex, chinlon, viscose fiber, acrylic fiber, polyethylene fiber or polyvinyl chloride fiber.
11. Automatic humidity regulating device according to claim 1 or 2,
the moisture-permeable film has a moisture permeability of more than 100g/m2·24h。
12. The automatic humidity conditioning device of claim 2,
at least one surface of the upper cover and the lower cover which relatively slide is provided with a convex rib or a roller along the sliding direction.
13. Automatic humidity regulating device according to claim 1 or 2,
and under the closed state of the cover part and the box body, the gap between the cover part and the box body is within 1.0 mm.
14. A refrigerator is characterized in that a refrigerator body is provided with a refrigerator door,
an automatic humidity control device according to any one of claims 1 to 13.
15. The refrigerator of claim 14,
the refrigerator is an air-cooled refrigerator,
the air supply part is composed of a damper and a fan, and is arranged in the outflow direction of the air flowing through the evaporator.
16. The refrigerator of claim 14,
the refrigerator is a direct-cooling refrigerator,
the air supply part is composed of a fan and is arranged at a position close to the evaporator.
17. The refrigerator of claim 14,
the refrigerator is provided with a heater which is provided with a heater,
the air supply part is composed of a fan and is arranged at a position close to the heater.
18. A control method for automatic humidity adjustment of a refrigerator is characterized in that,
the refrigerator comprises the automatic humidity control device according to any one of claims 1 to 13,
the control method comprises the following steps:
a detection step: the humidity sensor detects the humidity in the box body;
a comparison step: comparing the humidity measured in the detecting step with an optimum preservation target humidity corresponding to each article type;
and an adjusting step of adjusting the exposed area of the moisture-permeable film by driving the cover to be movable and adjusted by the driving unit and adjusting the air speed or the air volume by the air blowing unit, based on the comparison result in the comparing step.
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| CN201410383927.8A CN105333678B (en) | 2014-08-06 | 2014-08-06 | Automatic humidity adjusting device, refrigerator with same and control method |
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| CN201410383927.8A CN105333678B (en) | 2014-08-06 | 2014-08-06 | Automatic humidity adjusting device, refrigerator with same and control method |
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| CN105333678A CN105333678A (en) | 2016-02-17 |
| CN105333678B true CN105333678B (en) | 2020-03-03 |
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| DK3426219T3 (en) * | 2016-03-09 | 2020-04-14 | Equinox Ophthalmic Inc | THERAPEUTIC EYES TREATMENT WITH GASES |
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