CN211977365U - Humidity sensing film, fruit and vegetable container and refrigerator with same - Google Patents

Abstract

The utility model provides a humidity response membrane, fruit vegetables container and refrigerator that has it. The humidity sensitive membrane has at least one deformable conditioning zone having opposing first and second surfaces; the first surface is configured to absorb moisture in an area faced by the first surface; the deformable conditioning region is configured to undergo an elongation deformation as the amount of moisture absorbed by the first surface increases, and when the humidity of the region faced by the first surface increases to a first threshold, the elongation deformation is sufficient to cause the deformable conditioning region to curl toward the side of the second surface to form an opening that communicates the region faced by the first surface with the side of the second surface; the deformable conditioning zone is further configured to resume a shape to close the opening as the amount of moisture absorbed by the first surface decreases when the humidity of the area faced by the first surface decreases to a second threshold. The utility model discloses can realize the wet function of efficient self-adaptation, promote the fresh-keeping performance of storage space (especially fruit vegetables container).

Description

Humidity sensing film, fruit and vegetable container and refrigerator with same

Technical Field

The utility model relates to an article storage technical field especially relates to a humidity response membrane, fruit vegetables container and refrigerator that has it.

Background

For fresh fruits and vegetables, storage at higher humidity is more beneficial to preservation, so that when the fruits and vegetables are stored, the aim of storing high humidity of the environment is usually achieved by increasing the sealing property of the container. For example, in a refrigerator, it is common to maintain high humidity in a fruit and vegetable box by improving the sealability of the fruit and vegetable box in a refrigerating chamber. However, if too much food is stored in the fruit and vegetable box, excessive water vapor cannot be emitted, internal condensation can be caused, and if more dew contacts with the food, fruit and vegetable decay can be caused.

In order to solve the problem that the fruits and vegetables are rotten due to moisture condensation, a moisture permeable film is used on a cover plate of a fruit and vegetable box in the prior art to permeate moisture. This approach has two disadvantages: (1) the power of the moisture permeable film is humidity difference, when the difference value between the humidity in the fruit and vegetable box and the humidity outside the box is large, the moisture permeable speed is high, and when the difference value between the humidity in the fruit and vegetable box and the humidity outside the box is small, the moisture permeable speed is low, so that the mode of completely relying on the humidity difference to carry out moisture permeability cannot ensure that redundant water vapor in the fruit and vegetable box is completely and timely emitted. (2) Because there is no active gas circulation, the water vapor permeating from the fruit and vegetable box stays in the relatively sealed space between the rack and the fruit and vegetable box cover plate, and the high humidity water vapor in the space moves slowly to other positions of the refrigerating chamber, so that the relatively high humidity in the space can be kept for a long time, the difference between the humidity in the fruit and vegetable box and the humidity outside the box is reduced, and the moisture permeation speed and efficiency are influenced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a humidity sensing film that can respond to the height of humidity and the cyclic variation shape.

A further object of the present invention is to provide a fruit and vegetable container which can realize self-adaptive humidity adjustment by using the humidity sensing film to sense the humidity level and the property of the shape of the circular variation.

The utility model discloses a still further purpose sets up ventilation function's frame through the rack in fruit vegetables container roof top, realizes the exchange circulation of the moisture that sees through in the fruit vegetables container and outside gas to accelerate and pass through moisture velocity.

According to one aspect of the present invention, there is provided a humidity sensing membrane having at least one deformable humidifying area, the deformable humidifying area having a first surface and a second surface opposite to each other;

the first surface is configured to absorb moisture in an area faced by the first surface;

the deformable conditioning region is configured to undergo an elongation deformation as the amount of moisture absorbed by the first surface increases, and when the humidity of the region faced by the first surface increases to a first threshold, the elongation deformation is sufficient to cause the deformable conditioning region to curl toward the side of the second surface to form an opening that communicates the region faced by the first surface with the side of the second surface;

the deformable conditioning zone is further configured to resume a shape to close the opening as the amount of moisture absorbed by the first surface decreases when the humidity of the area faced by the first surface decreases to a second threshold.

Optionally, the first threshold is in the range of 90% to 100%;

the second threshold is in the range of 80% to 90%.

Optionally, the first threshold is 95%;

the second threshold is 85%.

Optionally, the deformable conditioning zone comprises:

a hydrophilic layer as a first surface of the deformable humidity control region, configured to be deformed in an extended manner as an amount of absorbed moisture increases and to be restored in shape as the amount of absorbed moisture decreases; and

and the hydrophobic layer is used as a second surface of the deformable humidity-regulating area.

According to the utility model discloses an on the other hand, the embodiment of the utility model provides a fruit vegetables container is still provided, include:

a housing having a vent; and

the humidity sensitive film of any one of the above, wherein the humidity sensitive film covers the air vent of the fruit and vegetable container, and the first surface of the deformable humidity-regulating area faces the interior of the fruit and vegetable container.

Optionally, the fruit and vegetable container further comprises:

the supporting plate is arranged at the air vent of the fruit and vegetable container and is fixed with the humidity sensing film to support the humidity sensing film;

the supporting plate is also provided with a gap corresponding to the deformable humidity adjusting area, and the gap of the supporting plate is configured to enable the first surface of the deformable humidity adjusting area to absorb moisture in the fruit and vegetable container through the gap of the supporting plate; and/or

And the cover plate is provided with a plurality of air vents, is arranged on one side of the second surface of the humidity sensing film and covers the humidity sensing film, and a gap allowing the deformable humidity adjusting area to curl is formed between the cover plate and the humidity sensing film.

Optionally, the fruit and vegetable container is a drawer type fruit and vegetable box, the shell is a barrel of the drawer, and the air vent of the fruit and vegetable container is arranged on the top wall of the barrel.

Optionally, the fruit and vegetable container further comprises:

the rack is arranged above the top wall of the cylinder body; and is

The rack is provided with a frame with a ventilation function, so that moisture in the fruit and vegetable container enters a space between the rack and the humidity sensing film through an opening formed in the deformable debugging area of the humidity sensing film and exchanges with gas outside the fruit and vegetable container through the frame.

Optionally, the frame is a grid-structured frame.

According to the utility model discloses a further aspect, the embodiment of the utility model provides a refrigerator is still provided, include:

the refrigerator comprises a refrigerator body, a storage compartment and a storage box, wherein the refrigerator body is internally limited with the storage compartment; and

the fruit and vegetable container as described above, disposed in the storage compartment.

The utility model discloses a humidity response membrane has at least one flexible humidifying area territory, and flexible humidifying area territory has relative first surface and second surface, wherein the first surface configuration is to the regional moisture that can absorb the first surface and face, and flexible humidifying area configuration produces extension deformation along with the increase of the moisture volume that the first surface absorbs, and when the regional humidity that the first surface faces rose to first threshold value, extension deformation was enough to make flexible humidifying area territory curl towards second surface one side, in order to form the opening that makes regional and second surface one side intercommunication that the first surface faces. The deformable conditioning zone is further configured to resume a shape to close the opening as the amount of moisture absorbed by the first surface decreases when the humidity of the area faced by the first surface decreases to a second threshold. In this way, in the case that the humidity sensing film is applied to a relatively closed storage space (such as a fruit and vegetable container), when the humidity in the storage space rises to a first threshold value, the deformable humidity-adjusting region of the humidity sensing film will curl towards the second surface side to form an opening, so as to efficiently and quickly discharge excess water vapor in the storage space through the opening, reduce the excessive humidity in the storage space, and avoid the dewing phenomenon; when the humidity in the storage space is reduced to a second threshold value, the deformable humidity adjusting area of the humidity sensing film contracts to restore the shape, so that the opening is closed to reseal the storage space, the humidity of the storage space can be maintained at a proper level, a high-efficiency self-adaptive humidity adjusting function is realized through the shape which is changed circularly by sensing the humidity, and the fresh-keeping performance of the storage space (particularly a fruit and vegetable container) is improved.

Furthermore, in the fruit and vegetable container which realizes self-adaptive humidity-adaptation by utilizing the humidity sensing film, the frame with the ventilation function is arranged on the rack above the fruit and vegetable container, so that the moisture in the fruit and vegetable container enters the space between the rack and the humidity sensing film through the opening formed by the deformable debugging area of the humidity sensing film, and then exchanges with the gas outside the fruit and vegetable container through the frame to realize gas circulation.

The above and other objects, advantages and features of the present invention will become more apparent to those skilled in the art from the following detailed description of specific embodiments thereof, taken in conjunction with the accompanying drawings.

Drawings

Some specific embodiments of the present invention will be described in detail hereinafter, by way of illustration and not by way of limitation, with reference to the accompanying drawings. The same reference numbers in the drawings identify the same or similar elements or components. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. In the drawings:

fig. 1 is a schematic structural view of a humidity sensing membrane according to an embodiment of the present invention;

FIG. 2 is a schematic view of the humidity responsive deformable region of the humidity responsive membrane of FIG. 1 in an as-formed and rolled state;

FIG. 3 is a schematic structural view of a fruit and vegetable container according to an embodiment of the present invention;

FIG. 4 is a perspective view of a fruit and vegetable container according to another embodiment of the present invention;

FIG. 5 is an exploded view of the garden stuff container shown in FIG. 4;

fig. 6 is a schematic structural diagram of a refrigerator according to an embodiment of the present invention.

Detailed Description

In order to solve the technical problem, the embodiment of the utility model provides a humidity response membrane, fruit vegetables container and refrigerator that has it is proposed.

Fig. 1 is a schematic structural diagram of a humidity sensing membrane 100 according to an embodiment of the present invention. Referring to FIG. 1, the humidity sensing membrane 100 has at least one deformable conditioning zone 110, and the deformable conditioning zone 110 has opposing first and second surfaces 111, 112. The first surface 111 of the deformable humidifying area 110 is configured to absorb moisture in an area that the first surface 111 faces. The deformable humidifying area 110 is configured to be deformed in an extending manner as the moisture amount absorbed by the first surface 111 increases, and when the humidity of the area faced by the first surface 111 rises to a first threshold value, the deformation in the extending manner is enough to enable the deformable humidifying area 110 to be curled towards the side of the second surface 112 to form an opening 113 which enables the area faced by the first surface 111 to be communicated with the side of the second surface 112. The deformable humidifying area 110 is further configured to resume a shape to close the opening 113 as the amount of moisture absorbed by the first surface 111 decreases when the humidity of the area faced by the first surface 111 decreases to a second threshold.

Fig. 2 shows a schematic diagram of the deformable humidity-controlling region 110 of the humidity-sensing film 100 in an original state and a curled state, wherein (a) the original state of the deformable humidity-controlling region 110 is shown, and (b) the curled state of the deformable humidity-controlling region 110 is shown. As shown in fig. 1 and 2, the deformable humidifying area 110 is flat in an as-formed state. In the as-formed state, the deformable humidity control region 110 and the flat humidity responsive membrane body 120 (i.e., the portion other than the deformable humidity control region 110) are in the same plane and are tightly coupled to form a seal such that the gas in the region facing the first surface 111 is substantially prevented from passing through the humidity responsive membrane 100 and reaching the second surface 112 side of the humidity responsive membrane 100. In the rolled state, the humidity-responsive deformable areas 110 are rolled towards the second surface 112 side relative to the humidity-responsive film body 120, so that an opening 113 is formed between each humidity-responsive deformable area 110 and the humidity-responsive film body 120, and the gas (including the humidity therein) in the area facing the first surface 111 can reach the second surface 112 side of the humidity-responsive film 100 through the opening 113.

Thus, in the case that the humidity sensing film 100 of the embodiment of the present invention is applied to a relatively closed storage space (for example, a fruit and vegetable container), when the humidity in the storage space rises to the first threshold (at this time, the humidity sensing film 100 forms the opening 113, so the first threshold is not referred to as an opening threshold), the deformable humidity adjusting region 110 of the humidity sensing film 100 will be curled toward the second surface 112 side to form the opening 113, so as to discharge the excessive water vapor in the storage space efficiently and quickly through the opening 113, reduce the excessive humidity in the storage space, and avoid the condensation phenomenon. When the humidity in the storage space is reduced to a second threshold (at this time, the opening 113 is closed, so the second threshold is not referred to as a closing threshold), the deformable humidity-adjusting region 110 of the humidity-sensing film 100 contracts to restore the shape, so that the opening 113 is closed to reseal the storage space, so that the humidity in the storage space can be maintained at a proper level, thereby realizing a high-efficiency adaptive humidity-adjusting function by sensing the humidity level and cyclically changing the shape, and improving the fresh-keeping performance of the storage space (particularly, the fruit and vegetable container).

In some embodiments, the deformable humidity-regulating region 110 may be a region obtained by die-cutting the humidity sensitive film 100. Referring to fig. 1, a part of the edge of the flexible humidity-controlling region 110 is integrated with the humidity-sensitive film body 120, and the rest of the edge of the flexible humidity-controlling region 110 is cut away from the humidity-sensitive film body 120 by die cutting, so that the flexible humidity-controlling region 110 can be cyclically changed in shape and curled with respect to the humidity-sensitive film body 120. It should be noted that the number and shape of the deformable humidifying areas 110 shown in fig. 1 are only schematic, and may be selected according to the practical application requirements, and the present invention is not limited thereto. For example, the number of the variable damping regions 110 may also be set to 3, 4, 8, or the like. The shape of the deformable humidifying area 110 may be rectangular, trapezoidal, triangular, etc.

In a preferred embodiment, six rectangular regions (particularly preferably square regions) can be punched out of the humidity responsive membrane 100 as the deformable humidity conditioning regions 110, wherein one side of each rectangular region is integral with the humidity responsive membrane body 120, and the other three sides are cut away from the humidity responsive membrane body 120. By adopting the rectangular deformable humidifying area 110, the deformation of the deformable humidifying area 110 in the direction of the extension deformation is more uniform, and the effect of self-adaptive moisture permeation or sealing due to the deformation of the induced humidity is ensured.

The first threshold (on threshold) and the second threshold (off threshold) mentioned herein can be adjusted by changing the structure, material, etc. of the deformable humidity-controlling region 110 of the humidity-sensing film 100 to meet the requirements of the actual application. In a preferred embodiment, the first threshold may be in the range of 90% to 100%, more preferably 95%; the second threshold may be in the range of 80% to 90%, more preferably 85%. Through the reasonable threshold value of opening and closing of setting up humidity response membrane 100, make the utility model discloses humidity response membrane 100 can be applied to the article storage application occasion (for example fruit vegetables storage) that needs high humidity, makes the storage environment can maintain under suitable humidity, improves fresh-keeping effect.

In one embodiment, the deformable humidifying area 110 may include a hydrophilic layer 114 and a hydrophobic layer 115 stacked together, the hydrophilic layer 114 serving as the first surface 111 of the deformable humidifying area 110, and the hydrophobic layer 115 serving as the second surface 112 of the deformable humidifying area 110. The hydrophilic layer 114 is configured to be deformed in a prolonged manner as the amount of absorbed moisture increases, and to be contracted to restore its shape as the amount of absorbed moisture decreases. In other words, as the humidity in the surrounding environment increases, the hydrophilic layer 114 absorbs more water and the elongation deformation thereof becomes larger, and conversely, the hydrophilic layer 114 discharges the absorbed water and shrinks. Hydrophobic layer 115 is not sensitive to moisture and humidity and resists prolonged deformation of hydrophilic layer 114. Therefore, when the humidity of the area faced by the hydrophilic layer 114 rises to the opening threshold, the extended deformation of the hydrophilic layer 114 will accumulate enough to cause the deformable humidity-control area 110 to curl toward the hydrophobic layer 115 side under the resisting action of the hydrophobic layer 115, thereby forming the opening 113. When the humidity of the region where the hydrophilic layer 114 faces is lowered to the closing threshold, the hydrophilic layer 114 discharges the absorbed moisture, and further shrinks due to the decrease in the absorbed moisture, thereby gradually restoring the original state. In this manner, adaptive cycling based on humidity is achieved.

The hydrophilic layer 114 may be made of a hydrophilic material having swelling characteristics after absorbing water, such as polyvinyl alcohol, hydrogel, and the like. The hydrophobic layer 115 may be made of a hydrophobic material such as polytetrafluoroethylene, polyethylene terephthalate, or the like. In a preferred embodiment, the hydrophobic layer 115 may be made of styrene-olefin copolymer. The hydrophilic layer 114 may be made of a styrene-olefin copolymer (e.g., a styrene-olefin copolymer containing sulfonic acid functional groups grafted onto the styrene-olefin copolymer) that is hydrophilically modified, and doped with a material having a water-absorbing post-swelling property at a specified concentration. By manufacturing the hydrophobic layer 115 and the hydrophilic layer 114 of the deformable humidity control region 110 using the styrene-olefin copolymer and the styrene-olefin copolymer after hydrophilic modification, respectively, it is possible to improve the dimensional stability and durability of the humidity responsive membrane 100 and to extend the service life.

In a preferred embodiment, the material doped in hydrophilic layer 114 and having the property of swelling after absorbing water may be sodium carboxymethyl cellulose (CMC-Na). Sodium carboxymethyl cellulose has good hydrophilicity and hygroscopicity, and absorbs water to swell when humidity increases, and rapidly discharges the absorbed water when humidity decreases, thereby enabling the hydrophilic layer 114 to be cyclically changed. By adjusting the content of sodium carboxymethylcellulose in the hydrophilic layer 114, the on-threshold and off-threshold of the humidity-sensitive membrane 100 can be adjusted. Preferably, the content of the sodium carboxymethyl cellulose in the hydrophilic layer 114 may be in the range of 5-8% by mass, so that the humidity sensing film 100 has an on threshold in the range of 90% to 100% and an off threshold in the range of 80% to 90%.

In addition, it is understood that the humidity sensitive membrane body 120 may be made of the same material as the deformable humidity control region 110 for the convenience of processing. Of course, the humidity sensing film body 120 may be made of a different material than the deformable humidity control region 110, so as to save material cost.

The above describes various implementation manners of the humidity sensing film 100 according to the embodiment of the present invention, and the fruit and vegetable container using the humidity sensing film 100 to realize self-adaptive humidity adjustment will be described below.

Fig. 3 is a schematic structural diagram of a fruit and vegetable container 200 according to an embodiment of the present invention. Referring to fig. 3, the fruit and vegetable container 200 may generally include a housing 210 and a moisture-sensitive film 100. The housing 210 has one or more vents 211. The humidity sensing film 100 covers the ventilation opening 211 of the fruit and vegetable container 200, and the first surface 111 of the deformable humidifying area 110 faces the inside of the fruit and vegetable container 200. That is, the second surface 112 of the deformable humidifying area 110 faces away from the interior of the fruit and vegetable container 200. The humidity sensing film 100 may be fixed at the vent 211 by means of adhesion, clamping, and the like. By covering the humidity sensing film 100 at the vent 211 of the fruit and vegetable container 200, when the humidity in the fruit and vegetable container 200 rises to the opening threshold, the deformable humidity-adjusting area 110 of the humidity sensing film 100 is curled toward the outside of the fruit and vegetable container 200 to form the opening 113, so that the excess water vapor in the fruit and vegetable container 200 can be discharged efficiently and quickly through the opening 113, the excessive humidity in the fruit and vegetable container 200 can be reduced, the dewing phenomenon can be avoided, and the rotting of the articles stored in the fruit and vegetable container 200 can be prevented. When the humidity in the fruit and vegetable container 200 is reduced to the closing threshold, the deformable humidity-adjusting region 110 of the humidity sensing film 100 will contract to restore the shape to close the opening 113 to re-seal the fruit and vegetable container 200, so that the humidity of the fruit and vegetable container 200 can be maintained at a proper level, thereby realizing a high-efficiency adaptive humidity-adjusting function.

Fig. 4 and 5 show an assembled perspective view and an exploded view of a fruit and vegetable container 200 according to another embodiment of the present invention, respectively.

Referring to fig. 5, in one embodiment, the fruit and vegetable container 200 may further include a support plate 220. The supporting plate 220 is disposed at the air vent 211 of the fruit and vegetable container 200, and the supporting plate 220 is fixed with the humidity sensing film 100 to support the humidity sensing film 100. Specifically, the supporting plate 220 may be disposed in a snap-fit manner, for example, a hook is disposed at the air vent 211, and a corresponding snap-fit groove is disposed on the supporting plate 220, so as to achieve the snap-fit between the two. The humidity responsive film 100 can be fixed on the supporting plate 220 by means of pasting, clamping, etc. For example, glue may be applied to the surface of the supporting plate 220, and the humidity sensing film 100 may be adhered to the supporting plate 220 by the glue.

The support plate 220 may also have a notch 221 corresponding to the deformable humidifying area 110. The notch 221 of the support plate 220 is configured such that the first surface 111 of the deformable humidifying area 110 absorbs moisture in the fruit and vegetable container 200 through the notch 221 of the support plate 220. The notches 221 may correspond to the humidity-adjustable regions 110 one-to-one, or one notch 221 may correspond to a plurality of humidity-adjustable regions 110, for example, one notch 221 corresponds to two humidity-adjustable regions 110, which may be selected according to the strength of the humidity sensing film 100. Preferably, the notches 221 are in one-to-one correspondence with the deformable humidity control regions 110, so as to provide better support for the humidity sensing film 100 under the condition of ensuring moisture permeability, and prolong the service life of the humidity sensing film.

With continued reference to fig. 5, in one embodiment, the fruit and vegetable container 200 may further include a cover plate 230. The cover plate 230 is disposed on the second surface 112 side (i.e., the side facing away from the inside of the fruit and vegetable container 200) of the humidity sensing film 100 and covers the humidity sensing film 100, so as to protect the humidity sensing film 100 and prevent the humidity sensing film 100 from being scratched by a foreign object. The cover plate 230 may have a plurality of ventilation holes 231 formed therein for emitting moisture from the inside of the fruit and vegetable container 200. The cover plate 230 and the humidity sensitive membrane 100 have a gap therebetween that allows the deformable humidity control region 110 to curl, thereby providing sufficient space for the deformable humidity control region 110 to form the opening 113.

In one embodiment, the fruit and vegetable container 200 may also include a support plate 220 and a cover plate 230, and the cover plate 230 may be fixed to the support plate 220 by a snap-fit manner. This may provide firm support and effective protection for the humidity responsive membrane 100 while simplifying the assembly operation.

In some embodiments, the fruit and vegetable container 200 may be a drawer-type fruit and vegetable box, and the housing 210 is a barrel of the drawer. The vent 211 of the fruit and vegetable container 200 may be located at any suitable location on the drawer barrel, such as the rear, side walls, top wall, etc. of the barrel.

With continued reference to fig. 4 and 5, in one embodiment, when the vent 211 of the fruit and vegetable container 200 is disposed on the top wall 212 of its barrel, the fruit and vegetable container 200 may further include a rack 240. The rack 240 is disposed above the top wall 212 of the cylinder (when the fruit and vegetable container 200 is provided with the cover plate 230, the rack 240 is disposed above the cover plate 230), so that the area between the rack 240 and the humidity sensing film 100 (or the cover plate 230) forms a relatively isolated space. The rack 240 has a frame 241 with a ventilation function, so that moisture in the fruit and vegetable container 200 can exchange with air outside the fruit and vegetable container 200 through the frame 241 after entering the relatively isolated space through the opening 113 formed in the deformable debugging region of the humidity sensing film 100, so that the moisture is rapidly moved and diffused, and the moisture is prevented from staying in the relatively isolated space to influence the moisture permeation speed.

In the fruit and vegetable container 200 for realizing the self-adaptive humidity-adaptation by using the humidity sensing film 100, the frame 241 with the ventilation function is arranged on the rack 240 above the fruit and vegetable container 200, so that the moisture in the fruit and vegetable container 200 enters the space between the rack 240 and the humidity sensing film 100 through the opening 113 formed by the deformable debugging area of the humidity sensing film 100, and then exchanges with the air outside the fruit and vegetable container 200 through the frame 241 to realize air circulation and accelerate the moisture-permeation speed. Particularly, when the fruit and vegetable container 200 is used in a refrigerator, it is possible to facilitate the entry of moisture, which has permeated from the inside of the fruit and vegetable container 200, into the active cool air circulation of the refrigerator, thereby remarkably increasing the moisture permeation rate.

Preferably, the rim 241 may be a grid-structured rim 241, thereby enhancing the air-permeable function thereof. Fig. 4 schematically shows an air path circulation direction by side arrows, and it can be seen that, by providing the frame 241 with a grid structure on the rack 240, moisture permeating from the fruit and vegetable container 200 can conveniently and rapidly enter the active air circulation along the air path circulation direction, so as to significantly increase the moving speed of the moisture, and further increase the moisture permeation speed.

Based on the same utility model discloses the design, the embodiment of the utility model provides a refrigerator is still provided. Fig. 6 is a schematic structural diagram of a refrigerator 300 according to an embodiment of the present invention. Referring to fig. 6, the refrigerator 300 may at least include a box body 310, and the fruit and vegetable container 200 described in any embodiment or combination of embodiments above. The box body 310 defines a storage chamber 320 therein, and the fruit and vegetable container 200 is arranged in the storage chamber 320.

By applying the fruit and vegetable container 200 to the refrigerator 300, self-adaptive humidification in storage of food materials such as fruits and vegetables is realized, and the fresh-keeping effect of the food materials such as fruits and vegetables is improved.

Thus, it should be appreciated by those skilled in the art that while a number of exemplary embodiments of the invention have been shown and described in detail herein, many other variations and modifications can be made, consistent with the principles of the invention, which are directly determined or derived from the disclosure herein, without departing from the spirit and scope of the invention. Accordingly, the scope of the present invention should be understood and interpreted to cover all such other variations or modifications.

Claims (10)

1. A humidity sensing membrane having at least one deformable humidifying area, wherein the deformable humidifying area has a first surface and a second surface which are opposite;

the first surface is configured to absorb moisture in an area faced by the first surface;

the deformable conditioning region is configured to undergo an elongated deformation as the amount of moisture absorbed by the first surface increases, and when the humidity of the area faced by the first surface increases to a first threshold, the elongated deformation is sufficient to cause the deformable conditioning region to curl toward the side of the second surface to form an opening that places the area faced by the first surface in communication with the side of the second surface;

the deformable conditioning zone is further configured to resume a shape to close the opening as the amount of moisture absorbed by the first surface decreases when the humidity of the area faced by the first surface decreases to a second threshold.

2. The humidity sensing membrane of claim 1,

the first threshold is in the range of 90% to 100%;

the second threshold is in the range of 80% to 90%.

3. The humidity sensing film of claim 2,

the first threshold is 95%;

the second threshold is 85%.

4. The humidity sensing membrane of claim 1,

the deformable conditioning zone comprising:

a hydrophilic layer as a first surface of the deformable humidifying region, configured to be deformed in an extended manner as an amount of absorbed moisture increases and to be restored in shape as the amount of absorbed moisture decreases; and

a hydrophobic layer as a second surface of the deformable humidifying area.

5. A fruit and vegetable container, comprising:

a housing having a vent; and

the humidity sensing membrane of any one of claims 1-4, covering a vent of the fruit and vegetable container with the first surface of the deformable moisture modulating area facing the interior of the fruit and vegetable container.

6. The fruit and vegetable container of claim 5, further comprising:

the supporting plate is arranged at the air vent of the fruit and vegetable container and is fixed with the humidity sensing film to support the humidity sensing film;

the support plate is also provided with a notch corresponding to the deformable humidity adjusting area, and the notch of the support plate is configured to enable the first surface of the deformable humidity adjusting area to absorb moisture in the fruit and vegetable container through the notch of the support plate; and/or

The cover plate is provided with a plurality of air holes, the cover plate is arranged on one side of the second surface of the humidity sensing film and covers the humidity sensing film, and a gap allowing the deformable humidity adjusting area to curl is formed between the cover plate and the humidity sensing film.

7. The fruit and vegetable container of claim 5, wherein the fruit and vegetable container is a drawer-type fruit and vegetable box, the housing is a barrel of the drawer, and the air vent of the fruit and vegetable container is arranged on the top wall of the barrel.

8. The fruit and vegetable container of claim 7, further comprising:

the rack is arranged above the top wall of the cylinder; and is

The rack is provided with a frame with a ventilation function, so that moisture in the fruit and vegetable container enters a space between the rack and the humidity sensing film through an opening formed in the deformable debugging area of the humidity sensing film, and then is exchanged with gas outside the fruit and vegetable container through the frame.

9. The fruit and vegetable container of claim 8,

the frame is of a grid structure.

10. A refrigerator, characterized by comprising:

the refrigerator comprises a refrigerator body, a storage compartment and a storage box, wherein the refrigerator body is internally limited with the storage compartment; and

the fruit and vegetable container according to any one of claims 5-9, arranged within the storage compartment.

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