Humidity control structure of refrigeration storage device and refrigeration storage device

Abstract

The present invention discloses a humidity control structure for a refrigeration storage device and a refrigeration storage device, comprising: a moisture absorbent member disposed on the return air duct; a siphon channel communicating the air inlet duct of the refrigerating chamber with the return air duct; and a siphon member disposed on the air inlet duct and passing through the siphon channel to contact the moisture absorbent member. By directly arranging a porous moisture absorbent member on the return air duct of the refrigerating chamber, the present invention can absorb excess moisture, reduce the defrosting frequency of the evaporator, and utilize the siphon principle to absorb the moisture in the porous moisture absorbent material into the siphon material closely attached to the folding plate in the main air duct. When the set humidity is greater than the actual humidity of the refrigerator, that is, when the refrigerator needs to be humidified, by unfolding the folding plate and increasing the fan speed, etc., the air flowing through the air inlet duct can accelerate its evaporation and carry away its moisture when passing through the surface of the siphon material.

Description

Technical Field

[0001] The present invention relates to the technical field of refrigerator humidity control, and particularly to a humidity control structure for a refrigeration storage device and a refrigeration storage device. Background Art

[0002] The low temperature in the refrigerator's fresh food compartment is conducive to maintaining the freshness of fruits and vegetables. However, the humidity in the fresh food compartment is relatively low, generally 30%-60% for direct-cooling refrigerators and even lower for air-cooling refrigerators. The optimal humidity for storing fruits and vegetables is generally around 90%. Therefore, if fruits and vegetables are directly placed in the fresh food compartment, most of the water in the fruits and vegetables is easily lost, which is obviously not conducive to preservation. In addition, the evaporator in an air-cooling refrigerator is prone to frosting, and usually the heating method is used to remove it. This method consumes a large amount of electricity and causes large temperature fluctuations in the refrigerator. The traditional humidification method generally sprays the water in the evaporator water receiving tray back into the fresh food compartment through pipes and nozzles. This method requires a pipeline structure and has a high setting cost. Summary of the Invention

[0003] In order to solve the technical problem of the complex humidity control structure of the refrigerator in the above-mentioned prior art, the present invention provides a humidity control structure for a refrigeration storage device and a refrigeration storage device.

[0004] The technical solution adopted by the present invention is as follows:

[0005] The present invention provides a humidity control structure for a refrigeration storage device, including:

[0006] A moisture absorbent member disposed on the return air duct;

[0007] A siphon channel connecting the air inlet duct of the fresh food compartment and the return air duct;

[0008] A siphon member disposed on the air inlet duct and passing through the siphon channel to contact the moisture absorbent member.

[0009] The present invention further includes: a support member disposed on the air inlet duct, a drive assembly for adjusting the contact area between the support member and the air flow in the air inlet duct, and the part of the siphon member located in the air inlet duct is mounted on the support member.

[0010] Preferably, the support member is a foldable support plate.

[0011] Further, a flow guiding member is also provided on the air inlet duct, and the flow guiding member and the siphon member are spaced apart to form a flow guiding air duct.

[0012] The present invention further includes a power storage assembly for supplying power to the drive assembly.

[0013] Further, a water receiving structure is provided at a position below the siphon member on the air inlet duct, and the drive assembly can drive the support member to squeeze the siphon member.

[0014] The present invention also provides a refrigeration storage device, including the humidity control structure described above.

[0015] Preferably, the refrigeration storage device is a refrigerator.

[0016] When the humidity in the refrigerating chamber is less than the set humidity, the controller of the refrigerator controls the driving assembly to unfold the support member to increase the contact area between the siphon member and the air flow in the air inlet duct, or controls the driving assembly to unfold the support member to increase the contact area between the siphon member and the air flow in the air inlet duct and increase the fan speed.

[0017] When the humidity in the refrigerating chamber is greater than or equal to the set humidity, the controller of the refrigerator controls the driving assembly to fold up the support member to reduce the contact area between the siphon member and the air flow in the air inlet duct.

[0018] Compared with the prior art, by directly arranging a porous moisture-absorbing member on the return air duct of the refrigerating chamber, the present invention can absorb excess moisture, reduce the defrosting frequency of the evaporator, and utilize the siphon principle to absorb the moisture in the porous moisture-absorbing material into the siphon material closely attached to the folding plate in the main air duct. When the set humidity is greater than the actual humidity of the refrigerator, that is, when the refrigerator needs to be humidified, by unfolding the folding plate and increasing the fan speed, etc., the air flowing through the air inlet duct can accelerate its evaporation when passing through the surface of the siphon material and take away its moisture. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings required for use in the embodiments or the description of the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0020] Figure 1 It is a schematic diagram of the air duct structure of the refrigerator in the embodiment of the present invention;

[0021] Figure 2 It is a schematic diagram of the humidity control structure in the embodiment of the present invention;

[0022] Figure 3 It is a schematic diagram of the humidity control structure in the embodiment of the present invention;

[0023] Figure 4 It is a schematic diagram of the humidity control structure in the embodiment of the present invention;

[0024] Figure 5 It is a partial schematic diagram of the humidity control structure in the embodiment of the present invention;

[0025] Figure 6 It is a structural schematic diagram of the foldable plate partially folded in an embodiment of the present invention;

[0026] Figure 7 This is a structural schematic diagram of the fully folded collapsible plate in an embodiment of the present invention;

[0027] 1. Moisture absorption member; 2. Siphon member; 3. Return air duct; 4. Air inlet duct; 41. Flow guiding member;

[0028] 5. Support member; 51. Rack; 52. Limit rod; 53. Gear;

[0029] 6. Power storage assembly; 7. Fan; 8. Sterilization device; 91. Water baffle; 92. Water receiving box; 10. Compressor. Detailed implementation manners

[0030] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0031] The principle and structure of the present invention will be described in detail below with reference to the accompanying drawings and embodiments.

[0032] The low temperature in the refrigerator's fresh food compartment is conducive to maintaining the freshness of fruits and vegetables. However, the humidity in the fresh food compartment is relatively low, generally 30%-60% for direct-cooling refrigerators and even lower for air-cooling refrigerators. However, the optimal humidity for storing fruits and vegetables is generally around 90%. Therefore, if fruits and vegetables are directly placed in the fresh food compartment, most of the moisture in the fruits and vegetables is likely to be lost, which is obviously not conducive to preservation. The existing humidity preservation methods for refrigerators generally reuse the condensed water in the refrigerator's water receiving tray and replenish it into the fresh food compartment through pipelines and atomization to achieve the humidity preservation effect in the fresh food compartment. However, this method requires a complex pipeline structure and a nozzle needs to be installed in the fresh food compartment, and the humidity preservation effect is poor. In response to this, the present invention proposes a humidity control structure for a refrigerator, which does not require the installation of complex pipeline structures, nozzles, water pumps and other components, and can also utilize the original humid air in the original fresh food compartment and replenish it into the fresh food compartment.

[0033] Such as Figures 1 to 4As shown in the figure, the present invention proposes a humidity control structure for a refrigeration storage device, which can specifically be a refrigerator. The humidity control structure specifically includes: a moisture absorption member 1 and a siphon member 2. The moisture absorption member 1 is a porous moisture absorption member 1, which is arranged on the return air duct 3 of the refrigerator's fresh food compartment. In addition, a siphon channel is provided between the return air duct 3 and the fresh air duct 4 in the fresh food compartment of the refrigerator. The moisture absorption member 1 covers the opening of the siphon channel. Part of the siphon member 2 is located on the fresh air duct 4 in the fresh food compartment, and the rest is arranged in the siphon channel and passes through the siphon channel to contact the moisture absorption member 1. Through the siphon effect, the moisture stored in the moisture absorption member 1 can reach the fresh air duct 4 through the siphon member 2. Substantially, as long as the moisture absorption member 1 reaches a certain humidity, the entire siphon member 2 will become wet, and the fresh air on the fresh air duct 4 will carry away part of the moisture on the siphon member 2, breaking the humidity balance of the siphon member 2, so that the moisture of the moisture absorption member 1 can reach the other end from one end of the siphon member 2 through the siphon effect.

[0034] The present invention further includes: a support member 5 and a drive assembly. The support member 5 is arranged on the side wall of the fresh air duct 4 and is perpendicular to the side wall of the fresh air duct 4. The part of the siphon member 2 located in the fresh air duct 4 is mounted on the support member 5, so that the siphon member 2 unfolds to contact the air in the fresh air duct for evaporation. The drive assembly can adjust the unfolding length of the support member 5, thereby adjusting the contact area between the siphon member 2 and the air flow in the fresh air duct 4, that is, adjusting the evaporation efficiency. By adjusting the contact area between the siphon member 2 and the air flow in the fresh air duct 4, the humidity of the fresh food compartment can be adjusted to keep the humidity of the fresh food compartment within a suitable humidity range.

[0035] When the water content of the moisture absorption member 1 is too high, the support member 5 can be directly adjusted to an extrusion state to squeeze the siphon member 2 and extrude the excess water to avoid affecting the moisture absorption efficiency of the moisture absorption member 1.

[0036] To ensure the moisture absorption efficiency, the moisture absorption member 1 completely blocks the return air duct, and the air passing through the return air duct has to pass through the moisture absorption member 1 for moisture absorption.

[0037] To ensure the evaporation efficiency, as Figures 2 to 5 shown, a flow guiding member 41 is further provided on the fresh air duct 4, which can specifically be a flow guiding plate. The flow guiding member 41 is arranged perpendicular to the other side of the fresh air duct 4, and the flow guiding member 41 is spaced from the support member 5. A flow guiding air duct is formed between the flow guiding member 41 and the support member 5. The siphon member 2 is located in the flow guiding air duct, that is, is attached to the air duct wall of the flow guiding air duct. Since the fresh air duct 4 is vertically arranged, the flow guiding air duct is horizontal, and the flow guiding member 41 is located below the support member 5, the siphon member 2 is attached to the lower side surface of the support member 5, which is conducive to the air contacting the siphon member 2 and accelerating the evaporation speed of the moisture.

[0038] As Figure 6 、 7As shown, the support member 5 can specifically be a foldable support plate. There are many specific ways to achieve folding and unfolding. Here, one example is given for illustration. The foldable support plate is composed of multiple rotating plates adjacent to each other end to end. The rotating plates are connected by hinges. The maximum expandable angle of the hinge is 180 degrees (in specific applications, it can be slightly less than 180 degrees to prevent jamming during folding). The opening and closing directions of the hinges at both ends of the rotating plate are opposite. When the foldable support plate is unfolded, it is a flat plate.

[0039] The driving component specifically includes: a motor with a gear 53 and a rack 51. The motor is installed at the interval between the air inlet duct 4 and the air return duct 3. The rack 51 is horizontally arranged and inserted horizontally into the air inlet duct 4, and is spaced above the foldable support plate. One end of the rack 51 outside the air inlet duct 4 is engaged with the gear 53 of the motor, so that the depth of the rack 51 inserted into the air inlet duct 4 is adjustable. The other end of the rack 51 is vertically provided with a limiting rod 52. The limiting rod 52 is buckled on the end of the last rotating plate of the foldable support plate and is connected by an elastic member.

[0040] When folding is required, the motor rotates forward. The rack 51 drives horizontally out of the air inlet duct 4 through the gear 53, driving the limiting rod 52 to move, causing the adjacent two rotating plates to arch upward and fold. When folded to the minimum angle, it just touches the lower side of the rack 51, enabling each pair of rotating plates (adjacent pair) to arch upward, achieving the folding effect.

[0041] When unfolding is required, the motor rotates in the reverse direction. The rack 51 drives horizontally into the air inlet duct 4 through the gear 53, driving the limiting rod 52 to move. The limiting rod 52 pulls the rotating plate to unfold the rotating plate.

[0042] In other embodiments, the support member 5 can also be set as a mesh plate with adjustable angle. The mesh plate is provided with multiple mesh holes. The siphon member 2 is directly attached to the lower side of the mesh plate. When the humidity in the refrigerating chamber needs to be quickly increased, the mesh plate is directly adjusted to a state perpendicular to the air in the air inlet duct 4, and the air vertically passes through the siphon member 2 and the mesh holes of the mesh plate for humidification. When the humidity does not need to be increased, the mesh plate is rotated downward so that the siphon member 2 is clamped between the side wall of the air inlet duct 4 and the mesh plate, and the contact surface with the air in the fresh air duct is very small.

[0043] It further includes a power storage component 6, specifically a storage battery, which can supply power to the driving component.

[0044] A water receiving structure is also provided on the air inlet duct 4. The water receiving structure specifically includes a water receiving box 92 and a water baffle 91. The water receiving box 92 is arranged on the outer side surface of the air inlet duct 4. There is an opening between the upper part of the water receiving box 92 and the air inlet duct 4. The water baffle 91 is inclined and arranged on the side wall of the air inlet duct 4 and at the opening. And the water baffle 91 is directly below the siphon member 2. The water extruded by the support member 5 pressing the siphon member 2 will directly drip onto the water baffle 91 and flow into the water receiving box 92 along the water baffle 91. The water receiving box 92 can be connected to the water receiving tray of the refrigerator through a pipeline to drain the excess water volume.

[0045] A sterilization device 8 is also provided on the air return duct 3. The sterilization device 8 is located above the moisture absorption member 1 to avoid bacterial accumulation. The sterilization device 8 can specifically be an existing sterilization device 8 that can be applied to a refrigerator, such as ultraviolet sterilization, activated carbon sterilization, etc., and all are within the protection scope of the present invention.

[0046] The moisture absorption member 1 proposed in the present invention can specifically be a sponge or moisture absorption cotton. The siphon member 2 can specifically be moisture absorption cotton. The moisture absorption member 1 and the siphon member 2 can also be made of other existing materials, as long as they can achieve the effects of moisture absorption and siphon, they are all within the protection scope of the present invention.

[0047] The present invention also proposes a refrigeration storage device, including the above-mentioned humidity control structure.

[0048] As Figure 1 、 2 shown, the refrigeration storage device is specifically a refrigerator. That is, it includes the above-mentioned air inlet duct 4, air return duct 3, refrigerating chamber, compressor 10, and blower 7. And a humidity sensor is provided in the refrigerating chamber to detect the humidity of the refrigerating chamber.

[0049] When the humidity of the refrigerating chamber is less than the set humidity, the controller of the refrigerator controls the drive assembly to adjust the support member 5 to increase the air flow contact area with the air inlet duct 4, or controls the drive assembly to adjust the support member 5 to increase the air flow contact area with the air inlet duct 4 and increase the rotational speed of the blower 7. To accelerate the water evaporation efficiency of the siphon member 2 to humidify the refrigerating chamber.

[0050] When the humidity of the refrigerating chamber is greater than or equal to the set humidity, the controller of the refrigerator controls the drive assembly to adjust the support member 5 to reduce the air flow contact area with the air inlet duct 4. To reduce the water evaporation efficiency of the siphon member 2, so that the water evaporation speed of the siphon member 2 is less than the moisture absorption speed of the moisture absorption member to achieve dehumidification of the refrigerator.

[0051] When the water content of the moisture absorption member 1 is too high, the foldable plate can be directly adjusted to the extrusion state to press the siphon member 2 and extrude the excess water to avoid affecting the moisture absorption efficiency of the moisture absorption member 1.

[0052] By directly arranging a porous moisture absorber 1 on the return air duct 3 of the refrigerating chamber, the present invention can absorb excess moisture and reduce the defrosting frequency of the evaporator. Since the humidity of the refrigerator will be continuously reduced during the frosting, defrosting, and draining processes of the air-cooled refrigerator, reducing the defrosting frequency can prevent the humidity of the refrigerator from decreasing too quickly.

[0053] The moisture flowing from the refrigerating chamber to the evaporator is absorbed by the porous moisture-absorbing material, and then the moisture in the porous moisture-absorbing material is absorbed into the siphon material closely attached to the folding plate in the main air duct (air inlet duct 4) by using the siphon principle. When the set humidity is greater than the actual humidity of the refrigerator, that is, when the refrigerator needs to be humidified, by unfolding the folding plate and increasing the fan speed, etc., the air flowing through the main air duct will accelerate its evaporation and take away its moisture when passing through the surface of the siphon material. When the evaporation speed of the moisture in the siphon material is greater than the moisture absorption speed of the porous moisture-absorbing material, the refrigerator is humidified. When the set humidity is less than the actual humidity, that is, when the refrigerator needs to be dehumidified, the folding plate reduces the contact area with the air flow by folding, thereby reducing the moisture evaporation speed. When the evaporation speed of the moisture in the siphon material is less than the moisture absorption speed of the porous moisture-absorbing material, the refrigerator is dehumidified. When the porous moisture-absorbing material absorbs too much moisture and affects its moisture absorption capacity, the foldable plate squeezes the siphon material by folding to continuously squeeze out the excess moisture in the siphon material to achieve the purpose of draining water.

[0054] It should be noted that the terms used above are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0055] Unless otherwise specifically stated, the relative arrangements, numerical expressions, and numerical values of the components and steps described in these embodiments do not limit the scope of the present application. At the same time, it should be understood that for the convenience of description, the dimensions of the various parts shown in the drawings are not drawn in actual proportional relationships. Technologies, methods, and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but in appropriate cases, the said technologies, methods, and devices should be regarded as part of the authorized specification. In all the examples shown and discussed here, any specific value should be interpreted as merely exemplary and not as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0056] In the description of the present application, it should be understood that the orientation or positional relationship indicated by orientation words such as "front, rear, upper, lower, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom", etc. is usually based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present application and simplifying the description. Without contrary explanation, these orientation words do not indicate and imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation on the protection scope of the present application; the orientation words "inside, outside" refer to the inside and outside relative to the contour of each component itself.

[0057] For the sake of convenience in description, spatial relative terms such as "above...", "over...", "on the upper surface of...", "upper...", etc. can be used here to describe the spatial positional relationship between a device or feature shown in the figure and other devices or features. It should be understood that the spatial relative terms are intended to cover different orientations in use or operation in addition to the orientation described in the figure for the device. For example, if the device in the figure is inverted, the device described as "above other devices or structures" or "over other devices or structures" will then be positioned as "below other devices or structures" or "under other devices or structures". Thus, the exemplary term "above..." can include both the orientations of "above..." and "below...". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and corresponding interpretations should be made for the spatial relative descriptions used here.

[0058] In addition, it should be noted that using words such as "first", "second", etc. to limit components is only for the convenience of distinguishing the corresponding components. Without additional statement, the above words have no special meaning. Therefore, it should not be construed as a limitation on the protection scope of the present application.

[0059] The above are only the preferred embodiments of the present invention and are not used to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A humidity control structure for a refrigeration storage device, characterized in that, Comprising: A moisture-absorbing member disposed on the return air duct; A siphon channel connecting the air inlet duct of the refrigerating chamber and the return air duct; A siphon member disposed on the air inlet duct and in contact with the moisture-absorbing member through the siphon channel; Further comprising: a support member disposed on the air inlet duct, a drive assembly for adjusting the contact area between the support member and the air flow in the air inlet duct, and the portion of the siphon member located in the air inlet duct is mounted on the support member; When the humidity in the refrigerating chamber is less than the set humidity, the controller of the refrigeration storage device controls the drive assembly to expand the support member to increase the contact area between the siphon member and the air flow in the air inlet duct, or controls the drive assembly to expand the support member to increase the contact area between the siphon member and the air flow in the air inlet duct and increase the fan speed.

2. The humidity control structure of the refrigerated storage device according to claim 1, characterized in that, The support member is a foldable plate.

3. The humidity control structure of the refrigerated storage device according to claim 1, characterized in that, A flow guide member is further disposed on the air inlet duct, and a flow guide air duct is formed in the spaced area between the flow guide member and the siphon member.

4. The humidity control structure of the refrigerated storage device according to claim 1, characterized in that, Further comprising a power storage assembly for supplying power to the drive assembly.

5. The humidity control structure of the refrigerated storage device according to claim 1, characterized in that, A water receiving structure is disposed at a position below the siphon member on the air inlet duct, and the drive assembly can drive the support member to squeeze the siphon member.

6. A refrigerating storage device, characterized in that, Comprising the humidity control structure according to any one of claims 1 to 5.

7. The refrigerated storage device according to claim 6, characterized in that, When the humidity in the refrigerating chamber is greater than or equal to the set humidity, the controller of the refrigerator controls the drive assembly to retract the support member to reduce the contact area between the siphon member and the air flow in the air inlet duct.

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