CN108332474B - Refrigerator, humidity control device and method - Google Patents
Refrigerator, humidity control device and method Download PDFInfo
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- CN108332474B CN108332474B CN201711409542.4A CN201711409542A CN108332474B CN 108332474 B CN108332474 B CN 108332474B CN 201711409542 A CN201711409542 A CN 201711409542A CN 108332474 B CN108332474 B CN 108332474B
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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
- F25D11/00—Self-contained movable devices, e.g. domestic refrigerators
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/26—Drying gases or vapours
- B01D53/28—Selection of materials for use as drying agents
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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
- F25D17/045—Air flow control arrangements
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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
- F25D29/00—Arrangement or mounting of control or safety devices
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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
- F25D2317/0411—Treating air flowing to refrigeration compartments by purification by dehumidification
- F25D2317/04111—Control means therefor
Abstract
The invention provides a humidity control device, which is used for controlling the humidity of a dry area and comprises a constant humidity agent and a moisture absorption area for accommodating the constant humidity agent, wherein the moisture absorption area is provided with an air inlet and an air outlet which are communicated with the dry area; the constant humidity agent sucks air from the air inlet and discharges the air after moisture absorption through the air outlet so as to maintain stable humidity in the dry area; the humidity control device further comprises a heating area, the heating area is communicated with the moisture absorption area, when moisture absorbed by the constant humidity agent is saturated, the constant humidity agent enters the heating area from the moisture absorption area, excessive moisture is evaporated through heating, regeneration is achieved, and the regenerated constant humidity agent enters the moisture absorption area again to be recycled. The humidity control device comprises a heating area used for heating the constant-humidity agent, and saturated water in the constant-humidity agent can be heated and evaporated through the arrangement of the heating area, so that the regeneration of the constant-humidity agent is realized, the premature failure of the constant-humidity agent is avoided, and the service life of the constant-humidity agent is prolonged.
Description
Technical Field
The invention relates to the field of refrigeration equipment, in particular to a refrigerator, a humidity control device and a humidity control method.
Background
In recent years, the market environment of dry and wet separate storage function in the refrigerating chamber of the refrigerator has gained wide acceptance of customers. However, as the market feedback shows, the dry area storage space required by most customers is not very large, but the function of the area is indispensable, so that the dry area can be arranged on the door body to meet the requirements of the customers in comprehensive consideration. In addition, the dry area of the door body is convenient to take food materials compared with the cold storage dry area, and the storage problem of seasonings and the like in a kitchen is facilitated.
The existing mature dry-wet separate storage technology in a refrigerating chamber of a refrigerator adopts an air duct technology to control the humidity of a dry area. When the humidity sensor detects that the humidity in the dry area is large, the dry area is accurately supplied with air through the air duct, and moisture in the air is taken away. The whole circulation process of fan air supply is that the sensor senses overhigh humidity, the fan supplies air and the humidity is reduced.
So, current scheme needs the start-up fan of discontinuity, easily causes the increase of fan performance loss and refrigerator power consumption. In addition, the whole circulation process of fan air supply, there is the great problem of humidity fluctuation. The fan air supply can make the evaporation rate of the moisture on the surface of the food material too fast, and the humidity inside and outside the food material is inconsistent.
The constant humidity agent can realize humidity control in the dry area without the help of external structure and function changes. The key component is a constant humidity agent which is composed of high molecular materials. However, when the moisture absorbed by the constant humidity agent is saturated, the constant humidity agent cannot absorb moisture continuously, and the humidity in the dry area cannot be controlled. In addition, bacteria are easy to breed after the constant-humidity agent absorbs moisture, and no technology for solving the problem exists at present.
In view of the above, it is desirable to provide a new humidity control device to solve the above problems.
Disclosure of Invention
The invention aims to provide a novel humidity control device which can solve the problems of regeneration and reutilization of a constant-humidity agent after moisture absorption saturation.
In order to achieve the purpose, the invention adopts the following technical scheme: a humidity control device is used for controlling the humidity of a dry area and comprises a constant humidity agent and a moisture absorption area containing the constant humidity agent, wherein the moisture absorption area is provided with an air inlet and an air outlet which are communicated with the dry area; the constant humidity agent sucks air from the air inlet and discharges the air after moisture absorption through the air outlet so as to maintain stable humidity of the dry area; the humidity control device further comprises a heating area, the heating area is communicated with the moisture absorption area, when moisture absorbed by the constant-humidity agent is saturated, the constant-humidity agent enters the heating area from the moisture absorption area, excessive moisture is evaporated through heating, regeneration is achieved, and the regenerated constant-humidity agent enters the moisture absorption area again to be recycled.
As a further improved technical scheme of the invention, the heating zone comprises a heating pipeline connected with the moisture absorption zone, and a heating wire is arranged in the heating pipeline.
As a further improved technical scheme of the invention, the heating area comprises an air outlet which is arranged on the heating pipeline, and the redundant moisture is discharged out of the heating area through the air outlet.
As a further improved technical solution of the present invention, the humidity control device includes a sensing device, the sensing device detects the moisture absorption state of the constant humidity agent in real time, and when the constant humidity agent absorbs moisture and is saturated, the sensing device controls the constant humidity agent to enter the heating area.
As a further improved technical scheme of the present invention, the sensing device is a gravity sensor, the moisture absorption region is provided with a partition board for supporting the constant humidity agent, the gravity sensor is arranged on the partition board, the heating region is arranged below the moisture absorption region, when moisture absorbed by the constant humidity agent is saturated and reaches a preset weight value, the partition board is opened, and the constant humidity agent falls into the heating region from the moisture absorption region.
As a further improved technical scheme of the invention, the humidity control device also comprises a storage box, wherein an additional constant humidity agent is arranged in the storage box, the storage box is arranged above the moisture absorption area, and when the weight value of the constant humidity agent in the moisture absorption area is smaller than a preset value, a certain amount of the additional constant humidity agent is introduced into the moisture absorption area by the storage box.
As a further improved technical solution of the present invention, the humidity control device further comprises a circulation power device, and after the completion of the regeneration of the constant humidity agent, the circulation power device enables the constant humidity agent to be returned from the heating region to the moisture absorption region.
As a further improved technical solution of the present invention, the circulation power device includes a motor, a pump driven by the motor, and a controller for controlling the motor to start or stop, when the time for the constant humidity agent to enter the heating zone reaches a preset value, the controller controls the motor to start, and the pump is operatively connected to the regenerated constant humidity agent.
In order to achieve the above object, the present invention further provides a refrigerator, which includes a door body, wherein a sealable dry area is arranged in the door body, and the door body further includes the humidity control device.
In order to achieve the above object, the present invention further provides a humidity control method for controlling humidity of a dry area by using the humidity control device, comprising the steps of: the constant-humidity agent sucks air from the air inlet and discharges dehumidified air from the air outlet; when the moisture absorbed by the constant-humidity agent is saturated, the constant-humidity agent enters the heating area and is heated to discharge water vapor, so that the regeneration and the cyclic utilization are realized.
The invention has the beneficial effects that: compared with the prior art, the humidity control device, the refrigerator and the humidity control method thereof provided by the invention have the advantages that the humidity control is carried out by utilizing the constant-humidity agent, so that the humidity of a dry area can be reduced at a constant speed, and the humidity can be maintained in an optimal range; in addition, the arrangement of the heating zone enables the constant humidity agent after moisture absorption saturation to realize regeneration and further cyclic utilization, prolongs the service life of the constant humidity agent and saves the use cost for users.
Drawings
FIG. 1 is a schematic view of a first embodiment of a humidity control device in a preferred embodiment of the present invention;
FIG. 2 is a flow chart of the operation of the sensing device of FIG. 1;
FIG. 3 is a schematic view of a second embodiment of a humidity control device in a preferred embodiment of the present invention;
FIG. 4 is a flow chart of the operation of the humidity control device of FIG. 3;
FIG. 5 is a schematic view of a third embodiment of a humidity control device in a preferred embodiment of the present invention;
fig. 6 is a flowchart showing a presentation structure of the humidity control apparatus in fig. 5.
1. Dry zone 2, air inlet 3 and air outlet
4. Baffle 5, baffle 6, storage box
7. A moisture absorption area 8, a first pipeline 9 and a second pipeline
10. Pump 11, air outlet 12, gravity sensor
13. Gravity sensor 14, motor 20 and cold air pipeline
21. Air inlet 22, air outlet 30, humidity sensor
23. Evaporator with a heat exchanger
Detailed Description
The present invention will be described in detail below with reference to specific embodiments shown in the drawings. These embodiments are not intended to limit the present invention, and structural, methodological, or functional changes made by those skilled in the art according to these embodiments are included in the scope of the present invention.
Terms such as "upper," "above," "lower," "below," and the like, used herein to denote relative spatial positions, are used for ease of description to describe one element or feature's relationship to another element or feature as illustrated in the figures. The spatially relative positional terms may be intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" the other elements or features. Thus, the exemplary term "below" can encompass both an orientation of above and below. The device may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly. Also, it should be understood that, although the terms first, second, etc. may be used herein to describe various elements or structures, these described elements should not be limited by these terms. These terms are only used to distinguish these descriptive objects from one another.
The humidity control device is suitable for a refrigerator, particularly suitable for a dry area with an independent space, and is used for controlling the humidity of the dry area. In this embodiment, the dry area is provided on a door body of the refrigerator, and has a case and a cover body that can be opened with respect to the case, and the cover body is opened only when the articles in the dry area need to be taken and placed. Of course, the dry zone may also be provided as a separate refrigerated compartment, such as a compartment provided alongside a refrigerator compartment and a freezer compartment.
In the embodiment shown in fig. 1, the humidity control device comprises a constant humidity agent and a moisture absorption area 7 for accommodating the constant humidity agent, wherein the moisture absorption area 7 is provided with an air inlet 2 and an air outlet 3 which are communicated with the dry area 1; the constant humidity agent sucks air from the air inlet 2 and discharges the air after moisture absorption through the air outlet 3, so that the dry area 1 maintains stable humidity; the humidity control device further comprises a heating area, the heating area is communicated with the moisture absorption area 7, when moisture absorbed by the constant-humidity agent is saturated, the constant-humidity agent enters the heating area from the moisture absorption area 7, excessive moisture is evaporated through heating, regeneration is achieved, and the regenerated constant-humidity agent enters the moisture absorption area 7 again to achieve recycling.
The humidity control device in the embodiment comprises a heating area used for heating the constant-humidity agent, and saturated water in the constant-humidity agent can be heated and evaporated through the arrangement of the heating area, so that the regeneration of the constant-humidity agent is realized, the premature failure of the constant-humidity agent is avoided, and the service life of the constant-humidity agent is prolonged.
In the embodiment, the constant humidity agent is made of an organic polymer moisture absorption material, and the hydrophilic performance of the polymer material is increased by increasing strong polar ion groups (-COOH and-SO 3-), CaCl2 modification and the like, SO that the moisture absorption capacity of the polymer material is increased. The organic polymer moisture absorption material can absorb moisture for a long time, the saturated moisture absorption capacity of the organic polymer moisture absorption material is improved by more than 6 percent compared with silica gel and is improved by more than 50 percent compared with a molecular sieve, and the moisture absorption rate is faster than that of the silica gel and the molecular sieve. In addition, the constant humidity agent contains a certain content of hydrophobic groups, and can be properly regulated and controlled according to the environment to release water so as to increase the humidity in the space. Hydrophobic group and hydrophilic group combined action cooperate, can realize the moisture absorption and the moisture release of moisture, keep the humidity in the airtight space in a stable suitable humidity range, the effectual humidity fluctuation that has reduced has avoided the phenomenon of getting damp of dry goods.
The heating zone comprises a heating conduit connected to the moisture absorbing zone 7, wherein a heating wire (not shown) is arranged in the heating conduit. The heating wire may be arranged in a coiled manner in the heating conduit, or may be arranged extending along the heating conduit.
The zone of heating includes air exit 11, air exit 11 sets up on the heating pipeline, unnecessary moisture passes through air exit 11 discharges the zone of heating. In the present embodiment, the heating duct includes a first duct 8 and a second duct 9 which are communicated with each other, wherein the first duct 8 is communicated with the moisture absorption region 7, the second duct 9 is disposed at an angle to the first duct 8, the second duct 9 extends substantially in a vertical direction, and the air outlet 11 is disposed above the second duct 9. Preferably, the first duct 8 is arranged obliquely so that the hygrostat falling from the hygroscopic zone 7 can slide along the inclined path of the first duct 8 towards the second duct 9, facilitating the accelerated discharge of the water vapour generated by heating from the exhaust outlet 11.
The humidity control device comprises an induction device, the induction device detects the moisture absorption state of the constant-humidity agent in real time, and when the constant-humidity agent absorbs moisture and is saturated, the induction device controls the constant-humidity agent to enter the heating area.
Induction system is gravity sensor 13, moisture absorption zone 7 is equipped with the support the baffle 5 of constant humidity agent, gravity sensor 13 is located on the baffle 5, the zone of heating is located moisture absorption zone 7's below works as when moisture saturation that the constant humidity agent inhaled reaches predetermined weight value, baffle 5 is opened, constant humidity agent by moisture absorption zone 7 falls into the zone of heating.
In the embodiment shown in fig. 2, the gravity sensor 13 detects the weight of the constant moisture agent, and when the weight of the constant moisture agent reaches 1100N, it is regarded that the constant moisture agent is saturated by moisture absorption. Preferably, a controller is arranged at the partition plate 5, when the conditions are met, the controller opens a switch of the partition plate 5, and the partition plate 5 is turned downwards so that the constant humidity agent falls down under the action of gravity and falls into the first pipeline 8 of the heating area. Preferably, a reset member (not shown) is further disposed at the partition plate 5, and after the constant-humidity agent falls, the partition plate 5 returns to the closed position, so as to isolate the moisture absorption region 7 to prevent the hot air generated by the heating region from flowing back into the dry region 1 to cause temperature rise, and to support a new constant-humidity agent to enable moisture absorption to be performed uninterruptedly.
In this embodiment, the humidity control device further includes a storage box 6, a supplementary constant humidity agent is disposed in the storage box 6, the storage box 6 is disposed above the moisture absorption region 7, and when the weight value of the constant humidity agent in the moisture absorption region 7 is smaller than a preset value, the storage box 6 introduces a fixed amount of the supplementary constant humidity agent into the moisture absorption region 7. The storage box 6 is provided for timely supplementing the constant humidity agent so as to avoid the interruption of the moisture absorption process of the moisture absorption area 7 caused by the moisture absorption saturated constant humidity agent entering the heating area. In addition, the constant humidity agent may be less volatilized during use, and therefore, the storage case 6 can be supplemented with a new constant humidity agent in time in accordance with the feedback of the gravity sensor 13.
With continued reference to fig. 1, a baffle 4 is provided between the storage box 6 and the moisture-absorbing region 7, in other words, the moisture-absorbing region 7 is defined by the inner walls, the baffle 4 and the partition 5. Preferably, a gravity sensor 12 is also provided at the baffle 4, which can supplement the constant humidity agent in a fixed amount into the moisture absorption region 7 as required.
As shown in fig. 1 and 2, the weight G of the constant humidity agent in normal operation is between 800N and 1100N, and when the weight of the constant humidity agent detected by the gravity sensor 13 is within this range, the baffle 4 and the partition 5 of the moisture absorption section 7 are both closed. When the weight of the constant humidity agent is less than 800N due to consumption or regeneration after being conveyed to the heating area, the controller makes a certain amount of the constant humidity agent move from the storage box 6 to the position above the baffle 4 and is detected by the gravity sensor 12 positioned at the baffle 4, so that a certain amount of the constant humidity agent meeting the use requirement is added into the moisture absorption area 7.
Referring back to fig. 1, the humidity control device further comprises a circulation power device, after the completion of the regeneration of the constant humidity agent, the circulation power device makes the constant humidity agent return from the heating region to the moisture absorption region 7. Further, the circulation power device comprises a motor 14, a pump 10 driven by the motor 14, and a controller for controlling the motor 14 to start or stop, when the time for the constant humidity agent to enter the heating zone reaches a preset value, the controller controls the motor 14 to start, and the pump 10 is operatively connected with the regenerated constant humidity agent.
Preferably, the heating zone is provided with a timer (not shown), the timer is started by the entry of the constant humidity agent into the heating zone, when the accumulated time reaches a preset value, the controller controls the motor 14 to start, and the pump 10 drives the constant humidity agent to move from the bottom to the top of the second pipe 9. Preferably, the top of the second pipe 9 is communicated with the storage box 6, and the pump 10 makes the constant humidity agent enter the storage box 6 through the second pipe 9, so that the regenerated constant humidity agent enters the storage box 6 as the constant humidity agent to be supplemented.
Referring to the flowchart shown in fig. 2, the gravity sensor 13 detects the weight of the constant humidity agent in real time, when the constant humidity agent absorbs moisture and is saturated to a preset value (in this embodiment, the preset value is set to 1100N, and of course, the preset value can be appropriately adjusted according to different application scenarios), the controller turns on the switch of the partition 5, the constant humidity agent falls into the heating area from the moisture absorption area 7, and then the timer is triggered to start timing. The constant-humidity agent enters the second duct 9 through the inclined path of the first duct 8, and in the process, the constant-humidity agent is heated by the heating wires provided in the first duct 8 and the second duct 9 to generate water vapor, and the water vapor rises to be discharged from the air outlet 11 in the second duct 9. When the timer reaches a preset value, the excessive moisture of the constant-humidity agent is evaporated, and the constant-humidity agent realizes functional regeneration. At this time, the controller controls the motor 14 to be started, and the regenerated constant humidity agent is sent from the bottom of the second pipeline 9 to the top of the second pipeline 9 by the pump 10 and enters the storage box 6 to become the constant humidity agent to be supplemented.
On the other hand, after the overweight constant humidity agent enters the heating area, the partition plate 5 is reset under the driving of the reset piece, the controller enables the baffle plate 4 above the moisture absorption area 7 to be opened, and the supplementary constant humidity agent in the storage box 6 enters the moisture absorption area 7, so that the moisture absorption area 7 can work continuously.
In summary, in the first embodiment, the moisture-saturated constant humidity agent can be functionally regenerated through the heating zone and recycled through the circulating power device, so that the service life of the constant humidity agent is prolonged, and waste is avoided. The constant-humidity agent has slow and uniform dehumidification effect, and is beneficial to maintaining the taste of food materials and the like. In addition, the constant humidity agent contains a certain content of hydrophobic groups, and can be properly regulated and controlled according to the environment to release water so as to increase the humidity in the space. Hydrophobic group and hydrophilic group combined action cooperate, can realize the moisture absorption and the moisture release of moisture, keep the humidity in the airtight space in a stable suitable humidity range, the effectual humidity fluctuation that has reduced has avoided the phenomenon of getting damp of dry goods.
As shown in fig. 3 and 4, the present invention provides a second embodiment of humidity control device, in this embodiment, the dry zone 1 of the refrigerator is provided with an air inlet 21 and an air outlet 22 which can be opened and closed, the air inlet 21 is connected with a cold air duct 20, and the air outlet 22 is connected with the outside; the humidity control device also comprises a constant humidity agent and a moisture absorption area 7 for containing the constant humidity agent, wherein the moisture absorption area 7 is provided with an air inlet 2 and an air outlet 3 which are communicated with the dry area 1; the humidity control device further comprises a humidity sensor 30 arranged in the dry area 1, when the humidity of the dry area 1 is higher than a preset value, the air inlet 21 and the air outlet 22 are opened, and dry and cold air flow enters the dry area 1 and takes away moisture through the air outlet 22; when the humidity of the dry area 1 is lower than the preset value, the air inlet 21 and the air outlet 22 are closed, the constant humidity agent sucks air from the air inlet 2, and discharges the air which is subjected to moisture absorption and/or humidification through the air outlet 3, so that the dry area 1 maintains stable humidity.
The moisture absorption area 7 is defined by an inner wall, a baffle 4 and a partition plate 5, the baffle 4 is positioned at the top of the moisture absorption area 7, and the partition plate 5 is arranged at the bottom of the moisture absorption area 7.
Compared with the first embodiment, the second embodiment has the advantages that the arrangement of the moisture absorption area 7 and the constant-humidity agent is unchanged, and the air inlet 21 and the air outlet 22 which can be communicated with the cold air pipeline 20 are additionally arranged in the dry area 1, so that the problem that when the humidity of the dry area 1 is increased suddenly due to opening and/or placing of food with higher humidity is solved, the slow moisture absorption process of the constant-humidity agent cannot meet the requirement of timely dehumidification. Thus, when the food is placed in a large quantity and the humidity sensor 30 senses that the humidity rapidly rises, the air inlet 21 and the air outlet 22 are opened, and the evaporator 23 delivers cold air to the dry area 1 through the cold air pipeline 20 to take away the moisture from the air outlet 22. And then the humidity is stable, and when the humidity is slightly increased due to factors such as opening and closing of a refrigerator door body, the humidity is stabilized within a certain range by adsorbing moisture through the constant-humidity agent. The two dehumidification modes of rapid dehumidification of the cold air pipeline 20 and slow dehumidification of the constant-humidity agent are combined together, so that the defect that the surface of the food material is air-dried to lose the flavor due to the fact that dehumidification is carried out through a single air channel is overcome, and the problem that the dehumidification process of the constant-humidity agent is slow due to sudden rise of humidity is solved.
Preferably, a fan (not shown) is arranged in the cold air duct 20, and when the humidity of the dry area 1 is higher than the preset value, the fan rotates to form a disturbed air flow, so that the dry and cold air flows to the dry area 1.
In the present embodiment, the air inlet 21 and the air outlet 22 are both provided with a control damper (not shown), the control damper is opened when the humidity of the dry zone 1 is higher than the preset value, and the air outlet 22 is provided below the dry zone 1. The control damper can be opened by the controller or blown by dry and cold air flow driven by the fan.
The preset value of the humidity is 55%, that is, when the humidity sensor 30 detects that the humidity value of the dry area 1 reaches 55%, the humidity is considered to be higher, at this time, the fan is started, dry and cold air flows into the dry area 1 through the cold air pipeline 20 and the air inlet 21, the dry and cold air flows rapidly take away moisture suddenly increased in the space of the dry area 1, the air flow with the moisture gradually sinks and flows out through the air outlet 22 arranged below the dry area 1, and therefore the humidity of the dry area 1 is effectively reduced to be below 55%. When the humidity value returns to the normal value, the fan is turned off, the air inlet air door and the air outlet air door are closed, and the humidity of the dry area 1 is continuously controlled by the constant humidity agent. Of course, the preset value is not necessarily 55%, and different dry zones 1 or refrigeration spaces may have different ideal humidity values according to circumstances, and accordingly, may have different preset limit values.
In the present embodiment, the air inlet 2 and the air outlet 3 of the moisture absorption region 7 are in a normally open state, that is, the constant humidity agent is always in a working state, which is suitable for a latent humidity control manner.
In embodiment 2, the method for controlling the humidity of the dry zone 1 by the humidity control device comprises the following steps: the humidity sensor 30 detects the humidity of the dry area 1 in real time; when the humidity is smaller than a preset value, the constant humidity agent independently controls the humidity of the dry area 1; when the humidity is greater than or equal to the preset value, the air inlet 21 is communicated with the cold air duct 20, and the dry and cold air flow flows into the dry area 1 from the cold air duct 20 and takes out moisture through the air outlet 22.
In this embodiment, the humidity control device further includes a heating area, and when the moisture absorbed by the constant humidity agent reaches a saturated state, the constant humidity agent is controlled to enter the heating area to evaporate excess moisture, so as to realize regeneration of the constant humidity agent. Further, the zone of heating is located the below of moisture absorption district 7, the zone of heating is injectd by heating tube and is formed, be equipped with the heater strip in the heating tube, heating tube is last to have seted up air exit 11. The heating pipeline comprises a first pipeline 8 and a second pipeline 9 which are communicated with each other, wherein the first pipeline 8 is communicated with the moisture absorption area 7, the second pipeline 9 and the first pipeline 8 are arranged in an angle mode, the second pipeline 9 extends approximately in the vertical direction, and the air outlet 11 is formed above the second pipeline 9. Preferably, the first duct 8 is arranged obliquely so that the hygrostat falling from the hygroscopic zone 7 can slide along the inclined path of the first duct 8 towards the second duct 9, facilitating the accelerated discharge of the water vapour generated by heating from the exhaust outlet 11.
The humidity control device further comprises a storage box 6, wherein a supplementary constant humidity agent is arranged in the storage box 6, the storage box 6 is arranged above the moisture absorption area 7, and when the constant humidity agent in the moisture absorption area 7 enters the heating area, a new constant humidity agent is introduced into the moisture absorption area 7 by the storage box 6.
The humidity control device further comprises a circulating power device, the circulating power device comprises a motor 14, a pump 10 driven by the motor 14 and a controller for controlling the motor 14 to start or stop, when the time for the constant-humidity agent to enter the heating area reaches a preset value, the controller controls the motor 14 to start, the pump 10 is operatively connected with the regenerated constant-humidity agent, and the pump 10 conveys the regenerated constant-humidity agent into the storage box 6. The above structure is the same as the implementation manner of the first embodiment, and for the specific description, reference may be made to the related description of the first embodiment, and details are not described here again.
With continuing reference to fig. 5 to 6, in embodiment 3 of the present invention, in embodiment 3, the humidity control device includes a constant humidity agent, and a moisture absorption area 7 for accommodating the constant humidity agent, where the moisture absorption area 7 is provided with an air inlet 2 and an air outlet 3 communicated with the compartment; the constant humidity agent sucks air from the air inlet 2 and discharges the air after moisture absorption through the air outlet 3, so that the compartment maintains stable humidity; wherein, humidity control device still includes the structure of disinfecting, the structure of disinfecting is located in moisture absorption district 7, the structure of disinfecting includes colloid silver ion and hydrogen peroxide, the structure of disinfecting is used for killing the bacterium in moisture absorption district 7.
The main effective components of the sterilization structure are food-grade hydrogen peroxide and colloidal silver ions, and the sterilization structure can effectively kill breeding bacteria in a low-temperature and high-humidity environment. Hydrogen peroxide is a strong oxidizing agent that oxidizes enzyme systems by releasing oxygen molecules. The colloidal silver ions can effectively interfere with the basic metabolism of bacteria or enzymes or damage the diaphragm structure of the bacteria or the enzymes. In addition, the colloid silver ions play a role in stabilizing and catalyzing hydrogen peroxide, the sterilizing material prepared by mixing the colloid silver ions and the hydrogen peroxide is not influenced by temperature, illumination and pH value, the stability is high, only 1% of the sterilizing material is lost in one month, the sterilizing material is decomposed into water and oxygen after the action, no pollution is caused, and the decomposed water can be absorbed by the constant-humidity agent and is evaporated in the regeneration process of the constant-humidity agent. From this, to the bacterium that the high humid environment of low temperature after the constant humidity agent moisture absorption breeds easily, the structure of disinfecting that this embodiment provided can have pointed killing to there is not the pollution production after the structure effect of disinfecting, does not influence the depositing of eating the material.
The sterilization structure comprises a sterilization filter screen, and the sterilization filter screen is arranged at the air inlet 2 and the air outlet 3. The moisture absorption area 7 filters the air in dry area 1 through air intake 2 and air outlet 3, and the filter screen that disinfects has further promoted the integration of sterilizing material and permanent wetting agent for the air that flows through moisture absorption area 7 all fully contacts with the filter screen that disinfects, has increased the coverage of the structure of disinfecting, has promoted bactericidal effect. Further, the sterilization filter screen is also coated on the surface of the constant humidity agent.
As a preferred embodiment of the invention, the bactericidal structure and the constant humidity agent are mixed in proportion to prepare the bactericidal constant humidity agent. The humidity control device further comprises a heating area, the heating area is formed into a heating pipeline communicated with the moisture absorption area 7, heating wires are arranged in the heating pipeline, and when the sterilization constant humidity agent absorbs moisture and is saturated, the sterilization constant humidity agent enters the heating pipeline to be heated so as to evaporate water vapor, so that regeneration is realized.
Humidity control device is including depositing the storage box 6 of the constant wet agent that disinfects, storage box 6 be used for to moisture absorption district 7 is leading-in the constant wet agent that disinfects, storage box 6 is located moisture absorption district 7's top.
The storage box 6 is communicated with the heating pipeline, the humidity control device comprises a circulating power device, the circulating power device comprises a motor 14 and a pump 10 driven by the motor 14, and the pump 10 conveys the regenerated sterilizing constant-humidity agent into the storage box 6.
The arrangement of the heating area and the storage box 6 is the same as that of the first and second embodiments, and the specific structure can refer to fig. 5, fig. 1 and the related description of the first embodiment, which are not repeated herein.
As described above, the heating area can heat the moisture-saturated germicidal humidistat so that it releases excess moisture to achieve regeneration, and the germicidal humidistat to be replenished is stored in the storage box 6 for replenishment and replacement, effectively extending the service life of the germicidal humidistat.
The moisture absorption area 7 comprises a panel, a prompt structure is arranged on the panel, and the prompt structure displays different colors according to the accumulated service time of the sterilizing constant humidity agent. In this embodiment, the prompting structure includes a timer and a display light, and the timer starts counting when the sterilizing and humidistatic agent is activated, assuming that the life span of the sterilizing and humidistatic agent is 500D. When the accumulated use time T is less than or equal to 400D, the display lamp is displayed in green, the sterilization and constant humidity agent is in a normal use state, and a user does not need to take care of the sterilization and constant humidity agent. And when T is more than 400D and less than 490D, the display lamp is turned on to show that the sterilizing constant humidity agent is in a critical state, and at the moment, the active ingredients of the sterilizing constant humidity agent are gradually consumed to be exhausted, so that a user is reminded to replace the new sterilizing constant humidity agent in time. If the user does not process the sterilizing and humidifying agent in time, when the accumulated using time T reaches 490D, the display lamp is lighted in red, which indicates that the sterilizing and humidifying agent is about to lose efficacy. The use state of the sterilizing constant humidity agent is prompted by the display lamps with different colors, and a user can observe and know the sterilizing constant humidity agent in real time so as to replace the sterilizing constant humidity agent in time. Of course, the prompting structure is not limited to the above-mentioned display lamp, and may be a test paper with changeable color, or may be set as a prompting sound. In addition, the lifespan of the germicidal humidistat varies depending on the ingredients or the mixing ratio, and the lifespan of 500D is merely for convenience of description and does not limit the present invention.
It should be understood that although the present description refers to embodiments, not every embodiment contains only a single technical solution, and such description is for clarity only, and those skilled in the art should make the description as a whole, and the technical solutions in the embodiments can also be combined appropriately to form other embodiments understood by those skilled in the art.
The above-listed detailed description is only a specific description of a possible embodiment of the present invention, and they are not intended to limit the scope of the present invention, and equivalent embodiments or modifications made without departing from the technical spirit of the present invention should be included in the scope of the present invention.
Claims (8)
1. A humidity control device is used for controlling the humidity of a dry area and comprises a constant humidity agent and a moisture absorption area containing the constant humidity agent, wherein the moisture absorption area is provided with an air inlet and an air outlet which are communicated with the dry area; the constant humidity agent sucks air from the air inlet and discharges the air after moisture absorption through the air outlet so as to maintain stable humidity of the dry area; the method is characterized in that: the humidity control device further comprises a heating area, the heating area is communicated with the moisture absorption area, when the moisture absorbed by the constant-humidity agent is saturated, the constant-humidity agent enters the heating area, the regeneration is realized by heating and evaporating redundant moisture, the regenerated constant-humidity agent enters the moisture absorption area again so as to realize the reuse, the humidity control device comprises an induction device, the induction device detects the moisture absorption state of the constant-humidity agent in real time, when the constant-humidity agent is saturated by moisture absorption, the induction device controls the constant-humidity agent to enter the heating area, the induction device is a gravity sensor, the moisture absorption area is provided with a partition board for supporting the constant-humidity agent, the gravity sensor is arranged on the partition board, the heating area is arranged below the moisture absorption area, and when the moisture absorbed by the constant-humidity agent is saturated and reaches a preset weight value, the partition is opened and the moisturizer falls from the moisture-absorbing region into the heating region.
2. A humidity control device as in claim 1 wherein: the heating zone comprises a heating pipeline connected with the moisture absorption zone, and a heating wire is arranged in the heating pipeline.
3. A humidity control device as in claim 2 wherein: the zone of heating includes the air exit, the air exit set up in on the heating pipeline, unnecessary moisture passes through the air exit is discharged the zone of heating.
4. A humidity control device as in claim 1 wherein: the humidity control device also comprises a storage box, wherein a supplementary constant humidity agent is arranged in the storage box, the storage box is arranged above the moisture absorption area, and when the weight value of the constant humidity agent in the moisture absorption area is smaller than a preset value, a certain amount of supplementary constant humidity agent is introduced into the moisture absorption area by the storage box.
5. A humidity control device as in claim 1 wherein: the humidity control device further comprises a circulating power device, and after the constant-humidity agent is regenerated, the circulating power device enables the constant-humidity agent to be returned to the moisture absorption area through the heating area.
6. A humidity control device as in claim 5 wherein: the circulating power device comprises a motor, a pump driven by the motor and a controller for controlling the motor to start or stop, when the time for the constant-humidity agent to enter the heating area reaches a preset value, the controller controls the motor to start, and the pump is operatively connected with the regenerated constant-humidity agent.
7. The utility model provides a refrigerator, includes the door body, be equipped with the dry district that can seal in the door body, its characterized in that: the door body further comprises a humidity control device according to any one of claims 1 to 6.
8. A humidity control method for controlling humidity in a dry area by using the humidity control apparatus as claimed in any one of claims 1 to 6, comprising the steps of:
the constant-humidity agent sucks air from the air inlet and discharges dehumidified air from the air outlet;
when the moisture absorbed by the constant-humidity agent is saturated, the constant-humidity agent enters the heating area and is heated to discharge water vapor, so that the regeneration and the cyclic utilization are realized.
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