CN210441512U - Accurate humidification device of forced air cooling refrigerator - Google Patents
Accurate humidification device of forced air cooling refrigerator Download PDFInfo
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- CN210441512U CN210441512U CN201921412036.5U CN201921412036U CN210441512U CN 210441512 U CN210441512 U CN 210441512U CN 201921412036 U CN201921412036 U CN 201921412036U CN 210441512 U CN210441512 U CN 210441512U
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Abstract
The utility model discloses an accurate humidification device of forced air cooling refrigerator relates to refrigerator technical field. The utility model comprises a temperature and humidity sensor of the refrigerating chamber arranged on the inner side wall of the refrigerating chamber; a freezing chamber temperature sensor is arranged on the inner side wall of the freezing chamber; an evaporator temperature sensor is arranged on the evaporator; a main control panel of the refrigerator is arranged at the rear side of the refrigerator body; the refrigerator main control board is respectively and electrically connected with the electric air door, the refrigerating chamber temperature and humidity sensor, the freezing chamber temperature sensor, the refrigerating fan, the compressor, the defrosting heater, the evaporator temperature sensor and the fresh air fan. The utility model monitors the temperature information and humidity information of the refrigerating chamber and transmits the information to the main control panel of the refrigerator by the temperature and humidity sensor of the refrigerating chamber; the main control board of the refrigerator controls to turn on a fresh air fan to humidify the refrigerating chamber; the humidity of the refrigerating chamber of the air-cooled refrigerator can meet the storage requirements of various food materials and is used for storing fruits and vegetables; large adjusting range, low cost and high precision.
Description
Technical Field
The utility model belongs to the technical field of the refrigerator, especially, relate to an accurate humidification device of forced air cooling refrigerator.
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 idle load is generally between 20% and 30% of Rh, and the humidity is difficult to adjust. The preservation of various food materials has different requirements on relative humidity, for example, the relative humidity of dry goods and tea leaves is required to be less than 45%, the relative humidity of cosmetics and medicines is required to be 50-60%, and the relative humidity of fruits and vegetables is required to be more than 80%. The relative humidity directly influences the quality of the food material fresh-keeping effect. The current situation in the industry is that the relative humidity of a single-system air-cooled refrigerator is too low, the humidity control means is limited, the humidity cannot be adjusted or the humidity control cost is too high.
The utility model provides an accurate humidification device of forced air cooling refrigerator calculates the average humidity Hav and calculates average humidity Hav and predetermines humidity threshold value H difference △ H in the refrigerating chamber refrigeration and shut down humidification process through the refrigerator main control panel, confirms to wash once and shuts down humidification time Soff, realizes with the unloaded average humidity of refrigerating chamber from controlling between 20% ~ 90% scope, the adjustment precision reaches 1%.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an accurate humidification device of forced air cooling refrigerator calculates the average humidity Hav and calculates average humidity Hav and predetermines humidity threshold value H difference △ H in the cold-storage room refrigeration and shut down the humidification process through the refrigerator main control panel, confirms to wash once and shuts down humidification time Soff, realizes with the cold-storage room no-load average humidity from controlling between 20% ~ 90% scope, the adjustment precision reaches 1%.
In order to solve the technical problem, the utility model discloses a realize through following technical scheme:
the utility model relates to an accurate humidification device of forced air cooling refrigerator, include: the refrigerator comprises a refrigerator body, a refrigerating chamber, a freezing chamber, a refrigerating system, an air circulating system, a defrosting system and a humidifying device;
the refrigeration system comprises a compressor, an evaporator, a capillary tube, a filter and a condenser; the compressor is arranged in a compressor cavity below the refrigerating chamber; the evaporator is communicated with the compressor and is arranged in an evaporator cavity at the rear side of the freezing chamber;
the air circulation system comprises a freezing chamber air duct, a refrigerating chamber air duct and a refrigerating return air duct; one end of the air duct of the freezing chamber is communicated with the upper part of the evaporator cavity, and the other end of the air duct of the refrigerating chamber is communicated with the air duct of the refrigerating chamber; a refrigerating fan is arranged in the air duct of the freezing chamber; an electric air door is arranged at the joint of the refrigerating return air duct and the freezing chamber air duct; one end of the refrigerating air return duct is communicated with the refrigerating chamber through a refrigerating chamber air return opening, and the other end of the refrigerating air return duct is communicated with the lower part of the evaporator cavity;
the defrosting system comprises a defrosting heater, a water pan and a drain pipe; the defrosting heater is arranged at the bottom in the cavity of the evaporator; one end of the drain pipe is communicated with the bottom of the hair styling cavity, and the other end of the drain pipe is connected to a water pan at the bottom of the refrigerator body;
the humidifying device is arranged between the side wall of the refrigerator and the inner container of the refrigerating chamber; the humidifying device comprises a connecting pipe, a one-way floating ball valve cavity and a fresh air fan; a vent cover is arranged at one end of the connecting pipe, which extends out of the side wall of the refrigerator; the other end of the connecting pipe is communicated with the bottom end of the cavity of the vertically placed one-way floating ball valve; a floating ball is placed in the cavity of the one-way ball valve; one side of the one-way ball float valve cavity is communicated with the fan protection cover; the fan protection cover is fixed on the outer wall of the refrigerating chamber liner and communicated with the refrigerating chamber; the diameter of the floating ball is larger than the diameter of the inlet of the one-way ball valve cavity and smaller than the diameter of the cavity of the one-way ball valve cavity,
a refrigerating chamber temperature and humidity sensor is arranged on the inner side wall of the refrigerating chamber; a freezing chamber temperature sensor is arranged on the inner side wall of the freezing chamber; an evaporator temperature sensor is arranged on the evaporator; a main control panel of the refrigerator is arranged at the rear side of the refrigerator body; the refrigerator main control board is respectively and electrically connected with the electric air door, the refrigerating chamber temperature and humidity sensor, the freezing chamber temperature sensor, the refrigerating fan, the compressor, the defrosting heater, the evaporator temperature sensor and the fresh air fan.
Preferably, the air duct of the freezing chamber is provided with a plurality of freezing air outlets communicated with the freezing chamber; the refrigerating chamber air duct is provided with a plurality of refrigerating air outlets communicated with the refrigerating chamber.
Preferably, the inner container of the refrigerating chamber is also provided with an adsorbent protective cover provided with a plurality of through holes; the adsorbent protection cover corresponds to the fan protection cover in position; and a porous adsorbent is fixed on the inner side of the adsorbent protection cover.
Preferably, an annular fan cover sealing ring is installed on the inner side wall of the fan protection cover.
Preferably, a movable sealing cover is arranged at the top of the one-way ball float valve cavity; and a reticular baffle is arranged at the communication position of the one-way ball float valve cavity and the fan protection cover.
Preferably, the humidifying device is disposed at an upper portion of the refrigerating chamber; the fresh air fan, the one-way ball float valve cavity and the connecting pipe are distributed from top to bottom.
A control method of a precise humidifying device of an air-cooled refrigerator comprises the following processes:
when any compartment of the air-cooled refrigerator requests refrigeration from a main control board of the refrigerator;
s00: the refrigerator main control board judges whether the temperature of the refrigerating chamber is greater than a refrigerating starting point Ton or not; if yes, go to S01; if not, keeping the current state;
s01: the refrigerator main control board controls the opening of the electric air door, the refrigerating fan and the compressor to refrigerate the refrigerating chamber; meanwhile, the refrigerating chamber temperature and humidity sensor transmits the monitored refrigerating chamber humidity to a main control panel of the refrigerator every 30 seconds;
s02: the refrigerator main control board judges whether the temperature of the refrigerating chamber is less than a refrigerating stop point Toff; if yes, recording the total refrigerating time Son of the refrigerating chamber and executing S03; if not, keeping the current state;
s03: the main control panel of the refrigerator closes the electric air door, turns to the freezing chamber for refrigeration, and opens the fresh air fan to humidify the refrigerating chamber;
s04: the refrigerator main control board judges whether the current refrigerating chamber humidity reaches a preset humidity threshold value H; if yes, the main control board of the refrigerator controls to close the fresh air fan, records the shutdown humidifying time Soff and executes S05; if not, keeping the current state;
s05, the main control board calculates the average humidity Hav in the refrigerating chamber refrigerating and shutdown humidifying process and calculates the difference value △ H between the average humidity Hav and the preset humidity threshold H;
s06, the refrigerator main control board judges △ H is 0, if so, Soff is kept unchanged, and if not, S07 is executed;
s07, the main control board of the refrigerator judges △ H >0, if so, the Soff is Soff-n and executes S00, and if not, the Soff is Soff + n and executes S00;
where n is the humidification time per increment of shutdown.
Preferably, the average humidity Hav in S05 is calculated by:
Hav＝∑(Hoff+H30s+H60s……HON)/(Son+Soff)；
wherein Hoff is the humidity value in the refrigerating chamber when the fresh air fan is closed; the HON is the humidity value in the refrigerating chamber when the electric air door is opened; h30s is the humidity value in the refrigerating chamber after the electric air door is opened for 30 s; h60s is the humidity value in the refrigerating chamber after the distance between the electric air door and the refrigerating chamber is opened for 60 s.
The utility model discloses an aspect has following beneficial effect:
1. the utility model monitors the temperature information and humidity information of the refrigerating chamber and transmits the information to the main control panel of the refrigerator by the temperature and humidity sensor of the refrigerating chamber; the main control board of the refrigerator controls to turn on a fresh air fan to humidify the refrigerating chamber; the humidity of the refrigerating chamber of the air-cooled refrigerator can meet the storage requirements of various food materials and is used for storing fruits and vegetables; the adjusting range is large, the cost is low, and the precision is high;
2. the utility model discloses a refrigerator main control board calculates the average humidity Hav and calculates average humidity Hav and predetermines humidity threshold value H difference △ H in the refrigerating chamber refrigeration and the humidification process of shutting down, confirm to wash once and shut down humidification time Soff, realize with refrigerating chamber no-load average humidity from controlling between 20% ~ 90% scope, the adjustment precision reaches 1%, make air-cooled refrigerator refrigerating chamber humidity can satisfy the storage needs of various different food materials, not only can be used for storing dry goods, tealeaves (relative humidity below 45%), can also be used for storing the storage of cosmetics, medicine (relative humidity about 50%) and fruit, vegetables (relative humidity more than 80%), the control range is big, low cost, the precision is high.
Of course, it is not necessary for any particular product 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 these drawings without creative efforts.
Fig. 1 is a side sectional view of the air-cooled moisture preservation refrigerator according to the present invention when the door is closed;
FIG. 2 is a schematic view of the direction of the air-cooled moisture-preserving refrigerator according to the present invention when the door is not closed;
FIG. 3 is an enlarged view of A in FIG. 2;
FIG. 4 is a flow chart of a control method of the precise humidifying device of the air-cooled refrigerator of the present invention;
FIG. 5 is a chart of absolute humidity versus relative humidity.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "open hole", "upper", "middle", "length", "inner", etc. indicate positional or orientational relationships and are merely for convenience of description and simplicity of description, and do not indicate or imply that the referenced component or element 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. 1-5, the present invention relates to an accurate humidifying device for an air-cooled refrigerator, comprising: the refrigerator comprises a refrigerator body, a refrigerating chamber 1, a freezing chamber 2, a refrigerating system, an air circulating system, a defrosting system and a humidifying device;
the refrigeration system comprises a compressor 31, an evaporator 32, a capillary tube, a filter and a condenser; the compressor 31 is installed in a compressor chamber below the refrigerating compartment 1; the evaporator 32 communicates with the compressor 31 and the evaporator 32 is installed in an evaporator chamber at the rear side of the refrigerating compartment 1; when in specific use: the main control panel of the refrigerator controls to turn on the compressor 31 and the refrigerating fan 22 to blow cold air into the freezing chamber 2 for refrigeration; meanwhile, the main control board of the refrigerator controls the cold air blowing and refrigerating in the refrigerating chamber through controlling the electric air door 13; because the evaporator 32 is at a low temperature below-18 ℃ for a long time and the temperature is far lower than the dew-point temperature of the refrigerating chamber, after cold air enters the refrigerating chamber 1 through the electric freezing chamber air duct 21 and the refrigerating chamber air duct 11, most of water vapor in the cold air is condensed on the evaporator to become frost, and the relative humidity in the refrigerating chamber 1 is only 20-30%.
The air circulation system comprises a freezing chamber air duct 21, a refrigerating chamber air duct 11 and a refrigerating return air duct 12; one end of the freezing chamber air duct 21 is communicated with the upper part of the evaporator cavity, and the other end is communicated with the refrigerating chamber air duct 11; a refrigerating fan 22 is arranged in the freezing chamber air duct 21; an electric air door 13 is arranged at the joint of the refrigerating return air duct 12 and the freezing chamber air duct 21; one end of the refrigerating return air duct 12 is communicated with the refrigerating chamber 1 through a refrigerating chamber return air inlet, and the other end is communicated with the lower part of the evaporator cavity;
the defrosting system comprises a defrosting heater 33, a water pan 35 and a drain pipe 34; the defrosting heater 33 is arranged at the bottom in the cavity of the evaporator; one end of the drain pipe 34 is communicated with the bottom of the hair chamber, and the other end is connected to a water pan 35 at the bottom of the refrigerator body; when in specific use: the refrigerator main control panel 5 controls the defrosting heater 33 to start, the evaporator 32 is defrosted after the temperature is raised, defrosted water is discharged out of a water receiving tray 35 outside the refrigerator through a drain pipe 34, and a high-temperature drain pipe is arranged in the water receiving tray 35 and used for evaporating defrosted water;
the humidifying device is arranged between the side wall 1a of the refrigerator and the inner container 1b of the refrigerating chamber; the humidifying device comprises a connecting pipe 41, a one-way ball float valve cavity 42 and a fresh air fan 43; a vent cover 411 is arranged at one end of the connecting pipe 41 extending out of the side wall 1a of the refrigerator; the other end of the connecting pipe 41 is communicated with the bottom end of a vertically placed one-way ball float valve cavity 42; a floating ball 44 is arranged in the one-way floating ball valve cavity 42; one side of the one-way ball float valve cavity 42 is communicated with a fan protection cover 431; the fan protection cover 431 is fixed on the outer wall of the refrigerating chamber inner container 1b and is communicated with the refrigerating chamber 1; the diameter of the float ball 44 is larger than the diameter of the inlet of the one-way float ball cavity 42 and smaller than the diameter of the cavity of the one-way float ball cavity 42,
when in specific use: the main control board of the refrigerator controls the fresh air fan 43 to rotate, the air suction surface of the fresh air fan 43 faces the air outside the refrigerator body, and the air blowing surface faces the refrigerating chamber 1; the floating ball 44 in the one-way ball float valve cavity 42 is lifted, and the outside high-humidity air enters the refrigerating chamber 1 to realize quick humidification; after the refrigerating system and the air circulating system are started for a period of time, the air pressure in the refrigerating chamber 1 is smaller than the external air pressure, and when the floating ball 44 is lifted up enough, the external high-humidity air enters the refrigerating chamber 1, so that the rapid humidification is realized;
from the thermodynamic perspective, the temperature and the absolute humidity determine the relative humidity of the space; wherein, the absolute humidity refers to the amount of water vapor contained in the gas; 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. When the refrigerating chamber 1 of the common air-cooling single-system refrigerator refrigerates, most of absolute humidity is brought to the low-temperature evaporator 32 through air circulation to be condensed; after refrigeration is stopped, the relative humidity rises slowly and the highest point is low, resulting in too low average relative humidity.
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; the table in fig. 5 shows that the humidification of the refrigerating chamber can be realized by only supplementing a few grams of absolute humidity into the refrigerating chamber 1;
assuming a 5 ℃ environment of 1m3, if a relative humidity of 70% is desired, only 5.09g of water vapor need be added to the space. In a natural state of the air-cooled refrigerator, enough water vapor cannot be supplemented into the refrigerating chamber through gaps such as a door seal and a rotating beam. Therefore, the utility model aims at the problem, the forced convection method is utilized to introduce air with high external moisture content into the refrigerating chamber 1, and the moisture supplement is completed 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 70 percent, the level of the double-system refrigerator is reached, and the fruit and vegetable fresh-keeping effect is greatly improved;
a refrigerating chamber temperature and humidity sensor 14 is arranged on the inner side wall of the refrigerating chamber 1; a freezing chamber temperature sensor 23 is arranged on the inner side wall of the freezing chamber 2; an evaporator temperature sensor 36 is mounted on the evaporator 32; a main control panel 5 of the refrigerator is arranged at the rear side of the refrigerator body; the refrigerator main control panel 5 is electrically connected with the electric air door 13, the refrigerating chamber temperature and humidity sensor 14, the freezing chamber temperature sensor 23, the refrigerating fan 22, the compressor 31, the defrosting heater 33, the evaporator temperature sensor 36 and the fresh air fan 43 respectively.
Wherein, the freezing chamber air duct 21 is provided with a plurality of freezing air outlets communicated with the freezing chamber 2; the refrigerating chamber air duct 11 is provided with a plurality of refrigerating air outlets communicated with the refrigerating chamber 1.
Wherein, the inner container 1b of the refrigerating chamber is also provided with an adsorbent protective cover 45 provided with a plurality of through holes; the adsorbent protection cover 45 corresponds to the blower protection cover 431 in position; the porous adsorbent 451 is fixed inside the adsorbent protection cover 45; can adsorb small-particle dust and dust oil smoke peculiar smell in the air, and ensure that the fresh air sent into the refrigerating chamber is clean and has no peculiar smell.
Wherein, the inner side wall of the fan protection cover 431 is provided with an annular fan cover sealing ring 432; the annular fan cover sealing ring 432 is composed of sponge, rubber and the like; the damping device is used for sealing, damping and reducing noise.
Wherein, the top of the one-way ball float valve cavity 42 is provided with a movable sealing cover 421; a reticular baffle 422 is arranged at the communication position of the one-way ball float valve cavity 42 and the fan protection cover 431; preventing the float 44 from entering the blower guard 431.
Wherein, the humidifying device is arranged at the upper part of the refrigerating chamber 1; the fresh air fan 43, the one-way ball float valve cavity 42 and the connecting pipe 41 are distributed from top to bottom.
A control method of a precise humidifying device of an air-cooled refrigerator comprises the following processes:
when any compartment of the air-cooled refrigerator requests refrigeration from the main control panel 5 of the refrigerator;
s00: the refrigerator main control board 5 judges whether the temperature of the refrigerating chamber is greater than a refrigerating starting point Ton or not; if yes, go to S01; if not, keeping the current state; here, the temperature in the evaporator chamber rises due to the shutdown of the compressor 31 and the cooling fan 22 before, the relative humidity of the air in the evaporator chamber is high, at this time, the refrigerating chamber 1 is cooled first, and the humidity in the refrigerating chamber 1 drops relatively slowly;
s01: the refrigerator main control board 5 controls to open the electric air door 13, the refrigerating fan 22 and the compressor 31 to refrigerate the refrigerating chamber 1; meanwhile, the refrigerating chamber temperature and humidity sensor 14 transmits the monitored refrigerating chamber humidity to the refrigerator main control board 5 every 30 seconds; in the refrigerating process of the refrigerating chamber 1, the air pressure in the refrigerating chamber 1 is greater than the external atmospheric pressure of the refrigerator due to the fact that the refrigerating fan 22 continuously blows cold air into the refrigerating chamber 1; therefore, the floating ball 44 is in a natural falling state, and blocks the inlet of the one-way ball valve cavity to prevent cold air from leaking;
s02: the refrigerator main control board 5 judges whether the temperature of the refrigerating chamber is less than a refrigerating stop point Toff; if yes, recording the total refrigerating time Son of the refrigerating chamber and executing S03; if not, keeping the current state; here, the refrigeration stop point Toff is smaller than the refrigeration start-up point Ton, and the refrigeration stop point Toff and the refrigeration start-up point Ton are temperature intervals maintained by the refrigeration compartment 1;
s03: the main control panel 5 of the refrigerator closes the electric air door 13 and turns to the freezing chamber 2 for refrigeration, and simultaneously, opens the fresh air fan 43 to humidify the refrigerating chamber 1; in the process, as the freezing chamber 2 is refrigerated, the air in the refrigerating chamber 1 returns to the cavity of the evaporator through the refrigerating return air duct 12, further the air pressure in the refrigerating chamber 1 is lower than the atmospheric pressure outside the refrigerator, the floating ball 44 is lifted, and the high-humidity air outside the refrigerator enters the refrigerating chamber 1 through the connecting pipe 41 and the one-way ball float valve cavity 42 to humidify the refrigerating chamber 1; meanwhile, the fresh air fan 43 is turned on, so that the humidifying efficiency is improved, the humidity in the refrigerating chamber 1 is improved in a short time, and the influence on the refrigerating effect due to excessive cold energy leaked in a long time is avoided; in addition, the floating ball 44 can be kept in a lifted state continuously under the action of the fresh air fan 43; in fact, when the fresh air fan 43 is simply opened, the fresh air fan 43 blows air in the one-way ball valve cavity 42 into the refrigerating chamber 1, the air pressure in the one-way ball valve cavity 42 is reduced, and the floating ball 44 can be lifted;
s04: the refrigerator main control board 5 judges whether the current refrigerating chamber humidity reaches a preset humidity threshold value H; if yes, the main control board 5 of the refrigerator controls to close the fresh air fan 43, records the shutdown humidifying time Soff and executes S05; if not, keeping the current state; specifically, when the fresh air fan 43 stops, the air pressure in the refrigerating chamber 1 is greater than the external atmospheric pressure of the refrigerator, and the floating ball 44 is in a natural falling state to block the inlet of the one-way ball valve cavity to prevent cold air from leaking;
s05, the main control board 5 calculates the average humidity Hav in the refrigerating chamber refrigerating and shutdown humidifying process and calculates the difference value △ H between the average humidity Hav and the preset humidity threshold H;
s06, the refrigerator main control board 5 judges △ H is 0, if so, Soff is kept unchanged, otherwise, S07 is executed;
s07, the refrigerator main control board 5 judges △ H >0, if yes, the Soff is changed into Soff-n and S00 is executed, and if not, the Soff is changed into Soff + n and S00 is executed;
wherein n is the humidification time per increment of shutdown; by using the method of S05-S07, the operation time of the fresh air fan 43 is increased to Sfon + n or shortened to Sfon-n when the air is cooled next time, the average humidity of the fresh air fan is increased, and the relative humidity of the fresh air fan is reduced; because the longer the running time of the fresh air fan 43 is, the higher the highest point of the relative humidity is, and conversely, the shorter the running time is, the lower the highest point of the relative humidity is, by means of the method, the adjustment of the average humidity is realized.
In S05, the average humidity Hav is calculated by the following method:
Hav＝∑Hoff+H30s+H60s……HON/Son+Soff；
wherein Hoff is the humidity value in the refrigerating chamber 1 when the fresh air fan 43 is turned off; HON is the humidity value in the refrigerating chamber 1 when the electric air door 13 is opened; h30s is the humidity value in the refrigerating chamber 1 after the distance between the electric air door 13 and the air door is opened for 30 s; h60s is the humidity value in refrigerating compartment 1 after opening electric damper 13 for 60 seconds.
In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., 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 present invention disclosed above are intended only to help illustrate the present invention. 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 its practical applications, to thereby enable others skilled in the art to best understand the invention for and utilize the invention. The present invention is limited only by the claims and their full scope and equivalents.
Claims (6)
1. An accurate humidifying device of an air-cooled refrigerator, comprising: the refrigerator comprises a refrigerator body, a refrigerating chamber (1), a freezing chamber (2), a refrigerating system, an air circulating system, a defrosting system and a humidifying device;
the refrigeration system comprises a compressor (31), an evaporator (32), a capillary tube, a filter and a condenser; the compressor (31) is arranged in a compressor cavity below the refrigerating chamber (1); the evaporator (32) is communicated with the compressor (31) and the evaporator (32) is arranged in an evaporator cavity at the rear side of the freezing chamber (2);
the air circulation system comprises a freezing chamber air duct (21), a refrigerating chamber air duct (11) and a refrigerating return air duct (12); one end of the freezing chamber air duct (21) is communicated with the upper part of the evaporator cavity, and the other end of the freezing chamber air duct is communicated with the refrigerating chamber air duct (11); a refrigerating fan (22) is arranged in the freezing chamber air duct (21); an electric air door (13) is arranged at the joint of the refrigerating return air duct (12) and the freezing chamber air duct (21); one end of the refrigerating air return duct (12) is communicated with the refrigerating chamber (1) through a refrigerating chamber air return opening, and the other end of the refrigerating air return duct is communicated with the lower part of the evaporator cavity;
the defrosting system comprises a defrosting heater (33), a water receiving tray (35) and a drain pipe (34); the defrosting heater (33) is arranged at the bottom in the cavity of the evaporator; one end of the drain pipe (34) is communicated with the bottom of the hair distributor cavity, and the other end of the drain pipe is connected to a water pan (35) at the bottom of the refrigerator body;
the humidifying device is arranged between the side wall (1a) of the refrigerator and the inner container (1b) of the refrigerating chamber; the humidifying device comprises a connecting pipe (41), a one-way floating ball valve cavity (42) and a fresh air fan (43); one end of the connecting pipe (41) extending out of the side wall (1a) of the refrigerator is provided with a vent cover (411); the other end of the connecting pipe (41) is communicated with the bottom end of a vertically placed one-way ball float valve cavity (42); a floating ball (44) is arranged in the one-way floating ball valve cavity (42); one side of the one-way floating ball valve cavity (42) is communicated with a fan protective cover (431); the fan protection cover (431) is fixed on the outer wall of the refrigerating chamber liner (1b) and is communicated with the refrigerating chamber (1); the diameter of the floating ball (44) is larger than the diameter of the inlet of the one-way ball valve cavity (42) and is smaller than the diameter of the cavity of the one-way ball valve cavity (42),
a refrigerating chamber temperature and humidity sensor (14) is arranged on the inner side wall of the refrigerating chamber (1); a freezing chamber temperature sensor (23) is arranged on the inner side wall of the freezing chamber (2); an evaporator temperature sensor (36) is arranged on the evaporator (32); a refrigerator main control board (5) is arranged at the rear side of the refrigerator body; the refrigerator main control board (5) is respectively electrically connected with the electric air door (13), the refrigerating chamber temperature and humidity sensor (14), the freezing chamber temperature sensor (23), the refrigerating fan (22), the compressor (31), the defrosting heater (33), the evaporator temperature sensor (36) and the fresh air fan (43).
2. The precise humidifying device of the air-cooled refrigerator according to claim 1, wherein the freezing chamber air duct (21) is provided with a plurality of freezing air outlets communicated with the freezing chamber (2); the refrigerating chamber air duct (11) is provided with a plurality of refrigerating air outlets communicated with the refrigerating chamber (1).
3. The precise humidifying device of the air-cooled refrigerator according to claim 1, wherein the refrigerating chamber liner (1b) is further provided with an adsorbent protection cover (45) provided with a plurality of through holes; the adsorbent protection cover (45) corresponds to the fan protection cover (431) in position; the inner side of the adsorbent protection cover (45) is fixed with a porous adsorbent (451).
4. The precise humidifying device of claim 1, wherein the inner side wall of the blower protecting cover (431) is provided with an annular air cover sealing ring (432).
5. The precise humidifying device of the air-cooled refrigerator as claimed in claim 1, wherein a movable sealing cover (421) is installed on the top of the one-way ball valve chamber (42); and a reticular baffle plate (422) is arranged at the communication position of the one-way floating ball valve cavity (42) and the fan protection cover (431).
6. The precise humidifying device of claim 1, wherein the humidifying device is arranged at the upper part of the refrigerating chamber (1); the fresh air fan (43), the one-way ball float valve cavity (42) and the connecting pipe (41) are distributed from top to bottom.
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| CN201921412036.5U CN210441512U (en) | 2019-08-28 | 2019-08-28 | Accurate humidification device of forced air cooling refrigerator |
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| CN201921412036.5U CN210441512U (en) | 2019-08-28 | 2019-08-28 | Accurate humidification device of forced air cooling refrigerator |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110398111A (en) * | 2019-08-28 | 2019-11-01 | 长虹美菱股份有限公司 | A kind of wind cooling refrigerator precise humidification device and its control method |
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2019
- 2019-08-28 CN CN201921412036.5U patent/CN210441512U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110398111A (en) * | 2019-08-28 | 2019-11-01 | 长虹美菱股份有限公司 | A kind of wind cooling refrigerator precise humidification device and its control method |
| CN110398111B (en) * | 2019-08-28 | 2023-08-25 | 长虹美菱股份有限公司 | Accurate humidifying device of air-cooled refrigerator and control method thereof |
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