CN110887303A - Refrigerator with air conditioning and humidifying device - Google Patents
Refrigerator with air conditioning and humidifying device Download PDFInfo
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- CN110887303A CN110887303A CN201911134848.2A CN201911134848A CN110887303A CN 110887303 A CN110887303 A CN 110887303A CN 201911134848 A CN201911134848 A CN 201911134848A CN 110887303 A CN110887303 A CN 110887303A
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- refrigerator
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- 238000004378 air conditioning Methods 0.000 title claims abstract description 23
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 70
- 238000005187 foaming Methods 0.000 claims abstract description 25
- 238000010257 thawing Methods 0.000 claims abstract description 18
- 238000010438 heat treatment Methods 0.000 claims abstract description 11
- 238000001816 cooling Methods 0.000 claims abstract description 9
- 238000007710 freezing Methods 0.000 claims description 65
- 230000008014 freezing Effects 0.000 claims description 61
- 238000007664 blowing Methods 0.000 claims description 14
- 230000005855 radiation Effects 0.000 claims 2
- 238000000034 method Methods 0.000 abstract description 12
- 230000000694 effects Effects 0.000 abstract description 8
- 239000013589 supplement Substances 0.000 abstract description 4
- 239000002699 waste material Substances 0.000 abstract description 3
- 235000013305 food Nutrition 0.000 abstract description 2
- 230000017525 heat dissipation Effects 0.000 description 8
- 238000005057 refrigeration Methods 0.000 description 5
- 235000012055 fruits and vegetables Nutrition 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003020 moisturizing effect Effects 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
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Classifications
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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
- F25D11/02—Self-contained movable devices, e.g. domestic refrigerators with cooling compartments at different temperatures
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
- F25D17/04—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
- F25D17/042—Air treating means within refrigerated spaces
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- 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
- F25D17/06—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation
- F25D17/062—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation in household refrigerators
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D2317/00—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass
- F25D2317/04—Treating air flowing to refrigeration compartments
- F25D2317/041—Treating air flowing to refrigeration compartments by purification
- F25D2317/0413—Treating air flowing to refrigeration compartments by purification by humidification
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)
Abstract
The invention discloses a refrigerator with an air-conditioning humidifying device, and relates to the technical field of refrigerator humidifying. The refrigerator comprises a refrigerator body, an air duct device, a refrigerating device, an air conditioning and humidifying device and a defrosting device. According to the invention, the air-conditioning humidifying device is arranged on the foaming layer of the refrigerator body, and defrosting water is accumulated in the water receiving disc after the defrosting process is finished; when the compressor starts to work, the heating pipe of the water receiving disc heats and evaporates the water in the water receiving disc along with the temperature rise of the external condenser, and the negative pressure suction generated by the refrigerating fan and the positive pressure generated by the cooling fan jointly act to ensure that the gas rich in water vapor enters the refrigerating chamber through the gas pipe to supplement necessary gaseous water vapor for the refrigerating chamber, thereby improving the humidifying and humidifying efficiency and humidifying effect in the refrigerating chamber; energy waste caused by humidification is reduced, and the food fresh-keeping effect of the refrigerating chamber is greatly improved.
Description
Technical Field
The invention belongs to the technical field of refrigerator humidification, and particularly relates to a refrigerator with an air-conditioning humidifying device.
Background
The share of the air-cooled refrigerators in the refrigerator market is increased year by year, and the air-cooled refrigerators are divided into two types, namely single-system air-cooled refrigerators and multi-system air-cooled refrigerators, and the main difference is whether a refrigerating chamber is provided with an evaporator or not. The single-system air-cooled refrigerator without an evaporator in the refrigerating chamber is popular with consumers due to high cost performance. However, the biggest disadvantage of the single-system air-cooled refrigerator is that the relative humidity in the refrigerating chamber is too low, the average no-load is generally between 20% and 30% Rh, and the no-load humidity of the double-system air-cooled refrigerator can reach between 75% and 85% by means of return air humidification and the like. The relative humidity directly influences the fresh-keeping time of fruits and vegetables. The current situation in the industry is that the relative humidity of a single-system air-cooled refrigerator is too low, the humidifying means is limited or the cost is too high. The refrigerating chamber of the single-system air-cooled refrigerator is also generally difficult to open due to negative pressure suction of a door.
The refrigerator with the publication number of CN105605872A and the humidity control method thereof are as follows: a refrigerator and a method for controlling humidity thereof are disclosed, comprising a humidity control device for keeping humidity and/or humidifying in a controlled manner, wherein the humidity control device sets a target humidity and an actual relative humidity, and obtains a target water replenishing quality W according to a difference value between the target humidity and the actual relative humidity and a current temperature of a target space; measuring and calculating water replenishing time T, and adjusting the humidity control device to maintain the maximum humidifying speed V in the time TmaxThe purpose of humidification is achieved; and then adjusting the humidity control device to make the humidification rate of the humidity control device consistent with the water vapor loss rate of the target space, thereby achieving the purpose of moisturizing. Such techniques require the addition of a device within the refrigerator to achieve humidification. The addition of the device can be imagined, the extra power consumption and the cost of the refrigerator are inevitably increased, in addition, the requirement of the humidifying device on the water quality is high, the passive addition of a user is generally needed, and the realization difficulty is high. In addition, the frosting condition of the air-cooled refrigerator can be worsened.
The invention provides a refrigerator with an air-conditioning humidifying device, which aims to solve the problems that the humidity of a refrigerating chamber of the existing single-system air-cooling refrigerator is low, the humidifying difficulty of the refrigerating chamber is high, the effect is poor and the energy is wasted.
Disclosure of Invention
The invention aims to provide a refrigerator with an air-conditioning humidifying device, wherein the air-conditioning humidifying device is arranged on a foaming layer of a refrigerator body, and defrosting water is accumulated in a water receiving disc after a defrosting process is finished; when the compressor starts to work, the heating pipe of the water receiving disc heats and evaporates the water in the water receiving disc along with the temperature rise of the external condenser, and the negative pressure suction generated by the refrigerating fan and the positive pressure generated by the radiating fan jointly act to ensure that the gas rich in water vapor enters the refrigerating chamber through the gas pipe, thereby solving the problems of lower refrigerating chamber humidity, large humidifying difficulty of the refrigerating chamber, poor effect and energy waste of the existing single-system air-cooled refrigerator.
In order to solve the technical problems, the invention is realized by the following technical scheme:
the invention relates to a refrigerator with an air-conditioning humidifying device, which comprises a refrigerator body; the refrigerator body comprises an air duct device, a refrigerating device and an air conditioning and humidifying device;
the air duct device comprises a refrigerating air duct arranged on a back foaming layer of the refrigerating chamber and a freezing air duct arranged on a back foaming layer of the freezing chamber; a refrigerating fan cover corresponding to the refrigerating air duct is arranged on one side of the back foaming layer of the refrigerating chamber; a freezing air cover corresponding to the freezing air duct is arranged on one side of the back foaming layer of the freezing chamber; the freezing air duct is communicated with the refrigerating air duct through a connecting air duct; an electric air door is arranged in the connecting air channel;
a plurality of freezing air outlets formed in the freezing air hood are communicated with the freezing air duct; a plurality of refrigerating air outlets formed in the refrigerating fan cover are communicated with the refrigerating air duct; a refrigerating return air inlet formed in the bottom of one side of the refrigerating chamber is communicated with the freezing air channel through a refrigerating return air channel; the freezing air return opening formed in the bottom of the freezing chamber is communicated with the bottom of the evaporator through a freezing air return duct;
the refrigerating device comprises an evaporator, a compressor, an external condenser, a water receiving disc and a water receiving disc heating pipe; the evaporator is communicated with the compressor through a capillary tube; the external condenser is communicated with the exhaust end of the compressor;
the evaporator is arranged between the back foaming layer of the freezing chamber and the freezing fan cover; a refrigerating fan is also arranged above the evaporator in the freezing air duct; the compressor is arranged in a compressor bin at the bottom of the back of the freezing chamber; the water pan is arranged at the bottom of the compressor bin corresponding to the compressor; an external condenser is arranged on one side inside the compressor bin; an extension pipeline of the external condenser is coiled at the bottom of the water receiving tray to form a water receiving tray heating pipe;
the air-conditioning humidifying device comprises an air delivery pipe, an air outlet pipe and an air inlet pipe; the upper end and the lower end of the gas pipe are respectively communicated with a gas outlet pipe and a gas inlet pipe; the gas transmission pipe is positioned in the foaming layer on the side wall of the refrigerator body; the air outlet pipe is communicated with the refrigerating chamber; the air inlet pipe extends into the compressor bin, and the bottommost end of the air inlet pipe is located above the water pan.
Preferably, the defrosting device is further included; the defrosting device comprises a defrosting heater coiled on the evaporator pipeline; the bottom of the evaporator cavity where the evaporator is located is communicated with a water pan in the compressor bin through a communicating pipe.
Preferably, the blowing surface of the refrigerating fan is opposite to the connecting air channel and used for blowing cold air into the refrigerating air channel through the connecting air channel.
Preferably, the air outlet pipe is inclined upwards, the included angle between the air outlet pipe and the horizontal plane is α, the range of α is 5 degrees < α <90 degrees, the distance of the air outlet pipe extending out of the refrigerating fan cover or the back of the refrigerating chamber is A, and the range of A is 1cm < A <10 cm.
Preferably, the air inlet pipe inclines downwards, an included angle between the air inlet pipe and the horizontal plane is β, the range of β is 5 degrees < β <60 degrees, the radiating fan 46 is further installed on one side of the external condenser 43 if the external condenser 43 is installed in the compressor bin, and the radiating fan 46 is not installed if the external condenser 43 is built in the foaming layer.
Preferably, the distance between the bottom end of the air inlet pipe and the water pan is H1; the air inlet pipe is positioned on the positive blowing pressure side of the cooling fan, the pipe orifice faces the blowing direction, and the distance between the pipe orifice of the air inlet pipe and the cooling fan is H2; the range of the H1 is 3cm-5 cm; the distance of the H2 is 5cm-8 cm.
One aspect of the present invention has the following advantageous effects:
according to the invention, the air-conditioning humidifying device is arranged on the foaming layer of the refrigerator body, and defrosting water is accumulated in the water receiving disc after the defrosting process is finished; when the compressor starts to work, the heating pipe of the water receiving disc heats and evaporates the water in the water receiving disc along with the temperature rise of the external condenser, and the negative pressure suction generated by the refrigerating fan and the positive pressure generated by the cooling fan jointly act to ensure that the gas rich in water vapor enters the refrigerating chamber through the gas pipe to supplement necessary gaseous water vapor for the refrigerating chamber, so that the compressor is convenient and fast, and the humidifying and humidifying efficiency and the humidifying effect in the refrigerating chamber are improved; energy waste generated by humidification is reduced.
Of course, it is not necessary for any product in which the invention is practiced to achieve all of the above-described advantages at the same time.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a front view of a refrigerator having a modified atmosphere humidifying apparatus according to the present invention;
FIG. 2 is a cross-sectional view A-A of FIG. 1;
FIG. 3 is a schematic diagram of the structure of the compressor chamber in the refrigerator with the air conditioning and humidifying device of the present invention;
FIG. 4 is a schematic view of the structure of the outlet duct extending into the refrigerating compartment in a refrigerator having a modified atmosphere humidifying device;
FIG. 5 is a schematic view of a compressor compartment of a refrigerator with an air-conditioning and humidifying device having a heat dissipation fan according to the present invention;
FIG. 6 is a table of absolute humidity versus relative humidity correspondence provided in the present invention;
in the drawings, the components represented by the respective reference numerals are listed below:
1-refrigerating chamber, 11-refrigerating fan housing, 12-refrigerating air outlet, 13-refrigerating air return inlet, 2-freezing chamber, 21-freezing fan housing, 22-freezing air outlet, 23-freezing air return inlet, 3-connecting air duct, 31-electric air door, 41-evaporator, 42-compressor, 43-external condenser, 44-water pan, 45-water pan heating pipe, 46-cooling fan, 47-refrigerating fan, 51-air pipe, 52-air outlet pipe and 53-air inlet pipe.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "open," "upper," "middle," "length," "inner," and the like are used in an orientation or positional relationship for convenience in describing the present invention and for simplicity of description, and do not indicate or imply that the referenced components or elements must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.
Referring to fig. 1-4, the present invention relates to a refrigerator with an air-conditioning and humidifying device, which comprises a refrigerator body; the refrigerator body comprises an air duct device, a refrigerating device and an air conditioning and humidifying device;
the air channel device comprises a refrigerating air channel arranged on the back foaming layer of the refrigerating chamber 1 and a freezing air channel arranged on the back foaming layer of the freezing chamber 2; a refrigerating fan cover 11 corresponding to the refrigerating air duct is arranged on one side of the back foaming layer of the refrigerating chamber 1; a freezing fan cover 21 corresponding to the freezing air duct is arranged on one side of the back foaming layer of the freezing chamber 2; the freezing air duct is communicated with the refrigerating air duct through a connecting air duct 3; an electric air door 31 is arranged in the connecting air channel 3; specifically, a refrigerating chamber air duct is formed in the rear foaming layer of the refrigerating chamber 1, and the refrigerating fan cover 11 is fixed on the rear foaming layer of the refrigerating chamber 1 and corresponds to the refrigerating chamber air duct; the same applies to the freezing chamber air duct and the freezing fan housing 21;
a plurality of freezing air outlets 22 formed in the freezing fan cover 21 are communicated with the freezing air duct; a plurality of refrigerating air outlets 12 formed in the refrigerating fan housing 11 are communicated with the refrigerating air duct; a refrigerating return air inlet 13 formed in the bottom of one side of the refrigerating chamber 1 is communicated with the freezing air channel through a refrigerating return air channel; the freezing air return opening 23 of the freezing chamber 2, which is opened at the bottom, is communicated with the bottom of the evaporator 41 through a freezing air return duct;
the refrigerating device comprises an evaporator 41, a compressor 42, an external condenser 43, a water receiving disc 44 and a water receiving disc heating pipe 45; the evaporator 41 communicates with the compressor 42 through a capillary tube; the external condenser 43 is communicated with the exhaust end of the compressor 42;
the evaporator 41 is arranged between the back foaming layer of the freezing chamber 2 and the freezing fan cover 21; a refrigerating fan 47 is also arranged above the evaporator 41 in the freezing air duct; the compressor 42 is installed in a compressor bin at the bottom of the back of the freezing chamber 2; the water pan 44 is arranged at the bottom of the compressor bin corresponding to the compressor 42; an external condenser 43 is arranged at one side inside the compressor bin; an extension pipeline of the external condenser 43 is coiled at the bottom of the water receiving tray 44 to form a water receiving tray heating pipe 45; wherein, the blowing surface of the refrigerating fan 47 is opposite to the connecting air channel 3 and is used for blowing cold air into the refrigerating air channel through the connecting air channel 3; in the actual use process: when the refrigerating chamber 1 is refrigerated; the refrigerating fan 47 works to blow cold air generated by the evaporator 41 into the refrigerating air duct through the connecting air duct 3, and then enters the refrigerating chamber 1 through the refrigerating air outlet 12 of the refrigerating fan housing 11 for refrigeration; the air in the refrigerating chamber 1 enters the refrigerating return air duct through the refrigerating return air inlet 13 and then enters the refrigerating air duct to form circulation; no matter the refrigerating chamber 1 or the freezing chamber 2 is refrigerated, the freezing air outlet 22 is sent into the freezing chamber 2 and returns to the bottom of the evaporator 41 through the freezing air return opening 23;
when the refrigerating chamber 1 does not refrigerate and the freezing chamber 2 refrigerates, the electric air door 31 in the connecting air duct 3 is closed, and air in the refrigerating chamber 1 is sent into a refrigerating chamber where the refrigerator 41 is located by positive pressure air generated by the refrigerating fan 47; at this time, the evaporator 41 has a low temperature generally lower than-25 ℃, has a strong dehumidifying capability, quickly removes the moisture in the refrigerating chamber 1, and reduces the relative humidity to 10% or even lower of the refrigerating fan housing; when the refrigerating chamber 1 stops refrigerating, negative pressure is generated in the refrigerating chamber 1, moisture in a door body 1 of the refrigerating chamber cannot be supplemented in time, and the relative humidity is always at a lower level and cannot rise to a high level, so that the average relative humidity is generally maintained between 10% and 30% of a refrigerating fan cover, and food is extremely easy to air dry after being placed in the refrigerating chamber, so that the humidity in the refrigerating chamber 1 is adjusted by adopting an air-conditioning and humidifying device;
the air-conditioning humidifying device comprises an air conveying pipe 51, an air outlet pipe 52 and an air inlet pipe 53; the upper end and the lower end of the gas pipe 41 are respectively communicated with a gas outlet pipe 52 and a gas inlet pipe 53; the gas pipe 51 is positioned in the foaming layer on the side wall of the refrigerator body; the air outlet pipe 52 is communicated with the refrigerating chamber 1; the air inlet pipe 53 extends into the compressor bin, and the bottommost end of the air inlet pipe 53 is positioned above the water pan 44;
α is in a range of 5 degrees < α <90 degrees, gas passing through the air outlet pipe 52 generates cold and hot gas to be converged, a small amount of condensed water is collected, α is arranged to prevent the condensed water from blocking the air outlet pipe 52 or flowing onto the refrigerating fan cover 11, and the condensed water can smoothly flow back to the air pipe 51 along with the existence of α so as to flow into the water pan 44;
in addition, the air outlet pipe 52 extends out of the refrigerating fan cover 11 by a distance A; a is in the range of 1cm < A <10 cm; the proper A can ensure that the high-humidity air is not excessively condensed on the inner pipe wall of the air outlet pipe 52, directly participates in the air circulation of the refrigerating chamber 1 in a gaseous state, and keeps a certain distance from the periphery, so that the high-humidity air is prevented from contacting a cold surface to cause large-area condensation;
referring to fig. 5, as an optimized scheme, a heat dissipation fan is arranged in a compressor bin, an air inlet pipe 53 inclines downwards, an included angle between the air inlet pipe 53 and a horizontal plane is β, a range of β is 5 degrees < β <60 degrees, a heat dissipation fan 46 is further arranged on one side of an external condenser 43 arranged in the compressor bin, no heat dissipation fan 46 is arranged if the external condenser 43 is arranged in a foaming layer, the β inclined included angle ensures that condensed water drops into a water receiving tray 13 and high-humidity air is conveniently blown into the air inlet pipe 53 by the heat dissipation fan 46, a distance between the bottom end of the air inlet pipe 53 and the water receiving tray 44 is H1, H5 ensures that the lowest position of an opening of the air inlet pipe 53 is above a liquid level and air ventilation of the whole device is not sealed by liquid, meanwhile, in order to ensure that the air pressure entering an air inlet pipe 51 is sufficient, the air inlet pipe 53 is positioned on an air blowing positive pressure side and opposite to the air blowing direction of the heat dissipation fan 46, the air inlet pipe 53 is positioned on an air blowing positive pressure side of the heat dissipation fan 46 and a distance between the air inlet.
Wherein, also include the defrosting device; the defrosting device comprises a defrosting heater coiled on the pipeline of the evaporator 41; the bottom of the evaporator chamber where the evaporator 41 is located is communicated with a water pan 44 in the compressor bin through a communicating pipe.
The practical use process of the invention is as follows:
when the refrigerating chamber 1 stops refrigerating and the freezing chamber 2 independently refrigerates, the compressor 42 continuously works and the electric air door 31 in the connecting air duct 3 is closed; at the moment, the refrigerating return air duct is communicated with the freezing chamber 2, so that negative pressure is generated in the refrigerating chamber 1; the gas in the refrigerating chamber 1 is sucked into the evaporator cavity where the evaporator 6 is positioned by the suction force generated when the refrigerating fan 47 works; when the compressor 42 works, the exhaust end is at high temperature and high pressure, the external condenser 43 is rapidly heated, and the cooling fan 46 rotates; the air suction surface of the external condenser 43 blows heat to the compressor 42 towards the external condenser 43, so that forced convection heat dissipation is realized, and positive pressure is formed on the side of the compressor 42; and the intake pipe 52 is located on the blowing positive pressure surface of the radiator fan 46; after the defrosting process is finished, defrosting water is accumulated in the water receiving tray 13, when the compressor 42 starts to work, the water receiving tray heating pipe 45 heats and evaporates water in the water receiving tray 44 along with the temperature rise of the external condenser 43, the negative pressure suction force generated by the refrigerating fan 47 and the positive pressure generated by the radiating fan 46 jointly act, so that gas rich in water vapor enters the refrigerating chamber 1 through the gas conveying pipe 51 to supplement necessary gaseous water vapor for the refrigerating chamber 1, and after entering from the gas inlet pipe 52 positioned at the upper layer of the refrigerating chamber 1, the gas is diffused to each part of the refrigerating chamber 1 through the sinking effect, the gas is sucked into the refrigerating return air duct from the refrigerating return air inlet 13, and the air conditioning and humidifying process is finished. The whole process quickly balances the air pressure inside and outside the refrigerating chamber, and prevents the phenomenon that the negative pressure in the refrigerating chamber is not easy to open when passing through a gate.
From a thermodynamic perspective, temperature and absolute humidity determine the relative humidity level of a space. When the common single-system refrigerator operates and the refrigerating chamber refrigerates, most of absolute humidity is brought to the low-temperature evaporator through air circulation to be condensed, and after refrigeration is stopped, the relative humidity rises slowly and the highest point is low, so that the average relative humidity is too low.
As can be seen from the air conditioning theory, the absolute humidity contained in the same relative humidity varies at different temperatures. The higher the temperature, the greater the absolute humidity in the air. Relative humidity refers to the ratio of absolute humidity to the water vapor content of the saturated state of the temperature expressed as a percentage.
Referring to fig. 6, the absolute humidity refers to the amount of water vapor contained in the air, and the table of correspondence between the relative humidity and the absolute humidity shows that the refrigerating chamber can be humidified by adding a few grams of water vapor into the refrigerating chamber; assume 1m at 5 deg.C3In the environment, if the relative humidity is 70%, only 5.09g of water vapor is needed to be added into the space. In a natural state of the air-cooled refrigerator, sufficient water vapor cannot be supplied to the refrigerating chamber 1 through gaps such as a door seal and a rotating beam. Aiming at the problem, the invention utilizes the refrigeration characteristics of the single-system air-cooled refrigerator, namely refrigeration stop of the refrigerating chamber, refrigeration of the freezing chamber and negative pressure state of the refrigerating chamber, to suck high-humidity steam above the water pan 44 into the refrigerating chamber 1 by a natural convection method and finish water supplement in a short time, so that the average value of the relative humidity in the single-system air-cooled refrigerator is increased from 20 percent to more than 60 percent, the level of the double-system refrigerator is reached, and the fresh-keeping effect of fruits and vegetables is greatly improved.
In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.
Claims (6)
1. A refrigerator with a gas-adjusting humidifying device comprises a refrigerator body; the refrigerator body comprises an air duct device and a refrigerating device and is characterized by also comprising an air conditioning and humidifying device;
the air channel device comprises a refrigerating air channel arranged on a back foaming layer of the refrigerating chamber (1) and a freezing air channel arranged on a back foaming layer of the freezing chamber (2); a refrigerating fan cover (11) corresponding to the refrigerating air channel is arranged on one side of the back foaming layer of the refrigerating chamber (1); a freezing fan cover (21) corresponding to the freezing air channel is arranged on one side of the back foaming layer of the freezing chamber (2); the freezing air duct is communicated with the refrigerating air duct through a connecting air duct (3); an electric air door (31) is arranged in the connecting air channel (3);
a plurality of freezing air outlets (22) formed in the freezing air cover (21) are communicated with the freezing air duct; a plurality of refrigerating air outlets (12) formed in the refrigerating fan cover (11) are communicated with the refrigerating air duct; a refrigerating return air inlet (13) formed in the bottom of one side of the refrigerating chamber (1) is communicated with the freezing air duct through a refrigerating return air duct; a freezing air return opening (23) formed in the bottom of the freezing chamber (2) is communicated with the bottom of the evaporator (41) through a freezing air return duct;
the refrigerating device comprises an evaporator (41), a compressor (42), an external condenser (43), a water pan (44) and a water pan heating pipe (45); the evaporator (41) is communicated with a compressor (42) through a capillary tube; the external condenser (43) is communicated with the exhaust end of the compressor (42);
the evaporator (41) is arranged between a back foaming layer of the freezing chamber (2) and the freezing fan cover (21); a refrigerating fan (47) is also arranged above the evaporator (41) in the freezing air duct; the compressor (42) is arranged in a compressor bin at the bottom of the back of the freezing chamber (2); the water pan (44) is arranged at the bottom of the compressor bin corresponding to the compressor (42); an external condenser (43) is arranged at one side inside the compressor bin; an extension pipeline of the external condenser (43) is coiled at the bottom of the water receiving tray (44) to form a water receiving tray heating pipe (45);
the air-conditioning humidifying device comprises an air conveying pipe (51), an air outlet pipe (52) and an air inlet pipe (53); the upper end and the lower end of the gas pipe (41) are respectively communicated with a gas outlet pipe (52) and a gas inlet pipe (53); the air outlet pipe (52) is communicated with the refrigerating chamber (1); the air inlet pipe (53) extends into the compressor bin, and the bottommost end of the air inlet pipe (53) is located above the water pan (44).
2. The refrigerator with modified atmosphere humidifying device of claim 1, further comprising a defrosting device; the defrosting device comprises a defrosting heater coiled on a pipeline of an evaporator (41); the bottom of the evaporator cavity where the evaporator (41) is located is communicated with a water pan (44) in the compressor bin through a communicating pipe.
3. The refrigerator with the modified atmosphere humidifying device of claim 1, wherein the blowing surface of the refrigerating fan (47) is opposite to the connecting air duct (3) for blowing cold air into the refrigerating air duct through the connecting air duct (3).
4. The refrigerator with the modified atmosphere humidifying device of claim 1, wherein the air outlet pipe (52) is inclined upwards, the included angle between the air outlet pipe (52) and the horizontal plane is α, the range of α is 5 degrees < α degrees <90 degrees, the distance of the air outlet pipe (52) extending out of the back of the refrigerating fan cover (11) or the refrigerating chamber (1) is A, and the range of A is 1cm < A <10 cm.
5. The refrigerator with modified atmosphere humidifying device of claim 1, wherein the air inlet pipe (53) is inclined downwards and the angle between the air inlet pipe (53) and the horizontal plane is β, the range of β is 5 degrees < β <60 degrees, the external condenser (43) is provided with a heat radiation fan (46) on one side if installed in the compressor bin, and the external condenser (43) is not provided with the heat radiation fan (46) if built in the foaming layer.
6. The refrigerator with modified atmosphere humidifying device of claim 5, wherein the distance between the bottom end of the air inlet pipe (53) and the water pan (44) is H1; the air inlet pipe (53) is positioned on the positive blowing pressure side of the cooling fan (46), the opening of the air inlet pipe faces the blowing direction, and the distance between the opening of the air inlet pipe (53) and the cooling fan (46) is H2; the range of the H1 is 3cm-5 cm; the distance of the H2 is 5cm-8 cm.
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| CN111562804A (en) * | 2020-05-15 | 2020-08-21 | 郑伯昂 | Positive and negative pressure system, operation method thereof and positive and negative pressure electric appliance using system |
| CN112268395A (en) * | 2020-11-16 | 2021-01-26 | 长虹美菱股份有限公司 | Air-cooled refrigerator with hidden simple humidifying device |
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|---|---|
| CN110887303B (en) | 2024-08-20 |
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