CN105674658B - A kind of refrigerator and its control method - Google Patents

A kind of refrigerator and its control method Download PDF

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Publication number
CN105674658B
CN105674658B CN201610077296.6A CN201610077296A CN105674658B CN 105674658 B CN105674658 B CN 105674658B CN 201610077296 A CN201610077296 A CN 201610077296A CN 105674658 B CN105674658 B CN 105674658B
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China
Prior art keywords
air
cabinet
mixing chamber
outlet
circulation
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CN201610077296.6A
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CN105674658A (en
Inventor
李荣生
李宏志
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Hisense Ronshen Guangdong Freezer Co Ltd
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Hisense Ronshen Guangdong Freezer Co Ltd
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25DREFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D11/00Self-contained movable devices, e.g. domestic refrigerators
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25DREFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D17/00Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
    • F25D17/04Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
    • F25D17/06Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25DREFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D29/00Arrangement or mounting of control or safety devices
    • F25D29/003Arrangement or mounting of control or safety devices for movable devices

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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 kind of refrigerator and its control methods, including cabinet, the cabinet is equipped with the air channel structure for making the opening position of cabinet form the first air curtain and the second air curtain, and the first air curtain is located on the outside of the second air curtain, and the temperature of the second air curtain is higher than the temperature of the first air curtain.The present invention forms the first and second air curtain by the cabinet frame in cabinet; in cabinet door opening state; first and second air curtain can obstruct inside and outside humiture and directly be exchanged; since the temperature of the first air curtain positioned at outside is relatively low; first air curtain can form cold water vapour layer after crossing with extraneous damp-heat air; contain a large amount of steam; and the second air curtain of the higher temperature positioned inside can form one layer of protection; it prevents steam from entering inside cabinet, ensures temperature after opening the door inside refrigerator, humidity smooth change in a certain range.

Description

A kind of refrigerator and its control method
Technical field
The invention belongs to refrigerating fields, and in particular to a kind of refrigerator and its control method.
Background technology
Currently on the market all freezer products only refrigerator close the door operation after or in climatic environment it is more moderate When just can guarantee temperature and humidity in cabinet in a certain claimed range.In the rainy season of southern humidity and in northern cold Winter, after opening the door one minute(For accessing the operating time of thing), the variation of humidity and high temperature.Especially to being used to store up The refrigerator of the particular products such as drug is deposited, keeps the stability of in-cabinet temperature, humidity to be even more important, the change of humidity and high temperature Change, it is possible to loss of drug potency can be caused, gone bad, and then influence the life security of patient, cause great malpractice.
Invention content
In view of the deficiencies of the prior art, it is an object of the present invention to provide the temperature inside refrigerator after a kind of certifiable enabling The refrigerator of degree, humidity smooth change in a certain range.
To achieve the goals above, the invention is realized by the following technical scheme:A kind of refrigerator, including cabinet, the cabinet Body is equipped with the air channel structure for making the opening position of cabinet form the first air curtain and the second air curtain, and the first air curtain is located at outside the second air curtain Side, and the temperature of the second air curtain is higher than the temperature of the first air curtain.
In said program, the double-deck air curtain is formed in refrigerator cabinet frame, in cabinet door opening state, is obstructed inside and outside humiture and is carried out It directly exchanges, ensures temperature after opening the door inside refrigerator, humidity smooth change in a certain range.
Further, above-mentioned air channel structure includes the circulation air path of the wall portion set on cabinet, the steaming in circulation air path Device and the first wind turbine are sent out, one end of circulation air path is equipped with air inlet, and the other end of circulation air path is respectively equipped with the first and second outlet air Mouthful, the first and second air outlet is located at the cabinet arch at the opening position of cabinet, and the first and second air outlet is opening down, and first goes out Air port is located at the outside of the second air outlet, and the air-flow of the first air outlet outflow forms the first air curtain, the gas of the second air outlet outflow Stream forms the second air curtain.When user, which needs to open the door, carries out storage work toward cabinet in, first conveying instruction makes the first wind turbine toward the One, two air outlets send cold wind, at this point, the first and second air outlet is formed about bilayer in refrigerator cabinet frame crosses cooling air curtain vertically downward(Than The inside and outside temperature of cabinet is all low), it obstructs inside and outside humiture and is directly exchanged, and air curtain nor affects on user into line access Operation.
In order to realize that air circulation in cabinet, the air inlet of above-mentioned circulation air path are connected to the inner cavity of cabinet, the first wind turbine is Reversible wind turbine.Using reversible wind turbine, may be implemented using a circulation air path and realize air curtain formed and cabinet in wind follow Ring.
Operating temperature range in above-mentioned cabinet is 8 DEG C~20 DEG C, humidity range is 35%~75%.
In order to enable the temperature of the air-flow flowed out from the second air outlet subtracts higher than the temperature for the air-flow that the first air outlet flows out The steam formed outside few cabinet enters in cabinet, and above-mentioned circulation air path is corresponded to and is equipped in the air duct of section between the second air outlet and evaporator Air mixing chamber, air mixing chamber one end are connected to circulation air path, and the air mixing chamber other end is connected to the second air outlet, air Mixing chamber offers auxiliary air port, assists being equipped with the second wind turbine in air port, the outlet in air port is assisted to be connected to air mixing chamber, auxiliary The entrance for helping air port is connected to the inner cavity of cabinet.
In another program, for the purposes of making the temperature of the air-flow flowed out from the second air outlet be flowed out higher than the first air outlet Air-flow temperature, reduce the steam formed outside cabinet and enter in cabinet, above-mentioned circulation air path correspond to the second air outlet and evaporator it Between section air duct in be equipped with air mixing chamber, air mixing chamber one end is connected to circulation air path, the air mixing chamber other end and the Two air outlets are connected to, and heater is equipped in air mixing chamber.Realize that the first and second air outlet flows out temperature existing for wind by heater Spend gradient difference.
Further, above-mentioned air mixing chamber offers auxiliary air port, assists closing equipped with movable valve is equipped in air port Door state, movable valve are opened, and air port and the first and second air outlet is assisted to enter the wind jointly, improve air circulation.
Yet another aspect, for the purposes of making the temperature of the air-flow flowed out from the second air outlet higher than the outflow of the first air outlet The temperature of air-flow reduces the steam formed outside cabinet and enters in cabinet, and above-mentioned circulation air path corresponds between the second air outlet and evaporator Air mixing chamber is equipped in the air duct of section, air mixing chamber one end is connected to circulation air path, the air mixing chamber other end and second Air outlet is connected to, and air mixing chamber offers auxiliary air port, assists being equipped with air pressure pump, the outlet of air pressure pump in air port It is connected to air mixing chamber, the entrance of air pressure pump is connected to the inner cavity of cabinet.
Above-mentioned first and second air outlet is respectively equipped with rectifier, and the rectification hole of rectifier downward, and described is located at first Rectifier in air outlet is higher than the rectifier being located in the second air outlet, and the rectifier in the first air outlet be located at Rectifier in second air outlet is parallel.The rectification hole of rectifier can be rectified into the vortex that the first wind turbine is blown out vertical parallel Gentle wind, and according to the heavy principle of cold air, vertically decline near refrigerator cabinet frame and formed in the double-deck air curtain blocking cabinet Portion is exchanged with the temperature humidity of environment.The radius R of the rectification hole of above-mentioned rectifier is 1.5mm to 2.5mm.It avoids because of rectification hole mistake The small resistance to wind is excessive, influences the formation of air curtain.
Temperature, humidity after opening the door it is a further object to provide a kind of both certifiable refrigerator in cabinet is in certain model It encloses interior smooth change and the control method of the refrigerator of air circulation in cabinet may be implemented, this method includes:Detecting freezer door body is No opening such as detects that freezer door body is closed state, and the first wind turbine is controlled toward shutdown direction and rotates, and realization goes out from first and second Air port air draught enters circulation air path, is then discharged from the air inlet of circulation air path so that air circulation in cabinet;Such as detect refrigerator Door body is opening state, and the first wind turbine is controlled to be rotated backward, and realization enters circulation air path from air inlet air draught, then from the One, two air outlets are discharged so that refrigerator opening position cabinet frame is formed about the double-deck downward air curtain.
The present invention in the cabinet frame of cabinet by forming the first and second air curtain, and in cabinet door opening state, the first and second air curtain can The inside and outside humiture of barrier is directly exchanged, since the temperature of the first air curtain positioned at outside is relatively low, the first air curtain and the external world Damp-heat air can form cold water vapour layer after crossing, containing a large amount of steam, and the second air curtain of the higher temperature positioned inside can To form one layer of protection, prevent steam from entering inside cabinet, to ensure temperature after opening the door inside refrigerator, humidity in certain model Enclose interior smooth change.
Description of the drawings
Fig. 1 is the front view of the refrigerator of the embodiment of the present invention.
Fig. 2 is A-A sectional views in Fig. 1.
Fig. 3 is the portions B enlarged drawing in Fig. 2.
Fig. 4 is the air-flow schematic diagram of the refrigerator shutdown state of the embodiment of the present invention.
Fig. 5 is the air-flow schematic diagram of the refrigerator door opening state of the embodiment of the present invention.
Fig. 6 is the upward view of rectifier of the embodiment of the present invention.
Fig. 7 is the portions D enlarged drawing in Fig. 6.
Fig. 8 is C-C sectional views in Fig. 6.
Specific implementation mode
The present invention will be further described below in conjunction with the accompanying drawings, but embodiments of the present invention are not limited to this.At this In the description of invention, it is to be understood that if there is the side of the instructions such as term "upper", "lower", "left", "right", "vertical", "horizontal" Position or position relationship are to be based on the orientation or positional relationship shown in the drawings, and are merely for convenience of description of the present invention and simplification of the description, It does not indicate or imply the indicated device or element must have a particular orientation, with specific azimuth configuration and operation, because The terms describing the positional relationship in the drawings are only for illustration for this, should not be understood as the limitation to this patent.
Embodiment 1
Structural reference Fig. 1 to 3 of the refrigerator of the present embodiment, including cabinet 1 and make shape in the opening position cabinet frame of cabinet 1 At the air channel structure of the first air curtain and the second air curtain, the air channel structure includes the circulation air path 11 of the wall portion set on cabinet 1, sets It is equipped with air inlet 33 in one end of evaporator 2 and the first wind turbine 4 in circulation air path 11, circulation air path 11, circulation air path 11 The other end is respectively equipped with the first and second air outlet 31,32, and the first and second air outlet 31,32 is located at the cabinet frame top at the opening of cabinet 1 position The air inlet 33 in portion, circulation air path 11 is connected to the inner cavity of cabinet 1, and the opening vertical-horizontal of the first and second air outlet 31,32 faces Under, the first air outlet 31 is located at the outside of the second air outlet 32, and the air-flow of the first air outlet 31 blowout forms the vertically downward The air-flow that one air curtain, the second air outlet 32 are blown out forms the second air curtain vertically downward, and the first air curtain is located on the outside of the second air curtain, And second air curtain temperature be higher than the first air curtain temperature.When user, which needs to open the door, to work into line access, intelligent control is first allowed Device 8 exports an instruction, and the realization of 8 output order of controller can be obtained or manually be controlled automatically, and controller 8 exports Instruction the first wind turbine 4 of control send cold wind, air to suck circulation air path 11 from air inlet 33 toward the first and second air outlet 31,32, then After evaporator 2 respectively from the first and second air outlet 31,32 be discharged and cabinet be open position cabinet frame be formed about vertically to Under the first and second air curtain, due to formed this first and second air curtain air-flow pass through evaporator 2, the temperature of this first and second air curtain Degree temperature more inside and outside than cabinet is all low, obstructs humiture inside and outside cabinet and is directly exchanged, and air curtain nor affects on user's progress Accessing operation.In addition, and due to the temperature of the second air curtain be higher than the first air curtain temperature, be located at outside the first air curtain due to temperature It spends low, can form cold water vapour layer after crossing with extraneous damp-heat air, containing a large amount of steam, and be located at the higher temperature of inside The second air curtain can form one layer of protection, prevent steam from entering inside cabinet, ensure temperature, humidity inside refrigerator after opening the door Smooth change in a certain range.
Since the air-flow by wind turbine can have vortex, in order to avoid the formation of vortes interference air curtain, above-mentioned first and second goes out Air port 31,32 is respectively equipped with rectifier 7, and the rectification hole 71 of rectifier 7 is downward, it is preferable that is located in the first air outlet 31 Rectifier 7 be higher than the rectifier 7 being located in the second air outlet 32, and the rectifier 7 in the first air outlet 31 be located at The rectification hole of rectifier 7 in second air outlet 32 is parallel, and rectification hole 71 is perpendicular to level down, and rectifier 7 is really Cutting rectification is carried out to wind by series of parallel circular rectification hole 71, theoretically 71 smaller wind of rectification hole is more smooth, But it is too small and excessive to the resistance of wind, the formation of air curtain is influenced, therefore, the radius R of the rectification hole 71 of selection rectifier 7 is 1.5mm to 2.5mm, preferably the radius R of rectification hole 71 are 2mm, avoid, because the too small resistance to wind of rectification hole 71 is excessive, influencing wind The formation of curtain.The structure of rectifier 7 is as shown in Fig. 6 to 8.
The refrigeration mode of the present embodiment can be direct-cooled refrigeration-type, by the free convection of the evaporator surface low temperature in cabinet, To reduce in-cabinet temperature;May be air-cooled refrigeration-type, cold air is blown into space in cabinet by cooling air duct pressure, causes to recycle, Reach reduction in-cabinet temperature.
Embodiment 2
The freezer structure of the present embodiment is similar to Example 1, and difference is:The air inlet 33 of above-mentioned circulation air path 11 is located at cabinet The rear side inner wall of body 1, the first wind turbine 4 is reversible wind turbine, and using reversible wind turbine, air may be implemented in circulation air path 11 pairs To flowing so that the front and back cycle of air in cabinet.Shutdown state, the first wind turbine 4 are controlled toward shutdown direction and rotate(Such as turn clockwise It is dynamic)So that air sucks circulation air path 11 from the first and second air outlet 31,32, then passes through evaporator 2 again from circulation air path 11 Air inlet 33 be drained into cabinet, by constantly recycling so that keep the temperature and humidity of a certain range in cabinet, as shown in Figure 4 (Arrow indicates airflow direction);Door opening state, the controlled reversion of the first wind turbine 4(It rotates counterclockwise), the air-flow in circulation air path 11 Flow direction occur reflux, air from the air inlet 33 of circulation air path 11 suck circulation air path 11, then pass through evaporator 2 again respectively from First and second air outlet 31,32 is discharged and the cabinet frame at cabinet opening position is formed about the first and second wind being subcooled vertically downward Curtain, as shown in Figure 5(Arrow indicates airflow direction).Ensureing refrigerator in normal work, the temperature range in cabinet 1 is 8 DEG C~ 20 DEG C, humidity range be 35%~75%, ensure that special drug or the required storage temperature of storing, humidity requirement.
Embodiment 3
The freezer structure of the present embodiment is similar to Example 2, and difference is:In order to enable the first and second air outlet 31,32 flows out Air-flow existing for temperature gradient it is poor so that from the second air outlet 32 flow out air-flow temperature higher than the first air outlet 31 outflow Air-flow temperature, ensure the second air curtain temperature be higher than the first air curtain temperature, reduce cabinet outside formed steam enter in cabinet, Above-mentioned circulation air path 11 corresponds to and is equipped with air mixing chamber 111 between the second air outlet 32 and evaporator 2 in the air duct of section, and air is mixed It closes 111 one end of room to be connected to circulation air path 11,111 other end of air mixing chamber is connected to the second air outlet 32, air mixing chamber 111 offer auxiliary air port 5, and auxiliary air port 5 is located at 1 inner top of cabinet, and auxiliary air port 5 will be in air mixing chamber 111 and cabinet 1 Chamber is connected to, and the second wind turbine 6 is equipped in the auxiliary air port 5 of the present embodiment, and the outlet in auxiliary air port 5 is connected to air mixing chamber 111, The entrance in auxiliary air port 5 is connected to the inner cavity of cabinet 1.The air quantity of the position and the second wind turbine 6 that assist air port 5 is designed to big volume Freezer product promote temperature uniformity and air curtain effect and have very important promotion, the installation position in auxiliary air port 5 that should be Selection is close proximity to cabinet intracavitary portion, if the stability of air curtain can be influenced close to doorway, and the air quantity of the second wind turbine 6 should not mistake Greatly, the air themperature relative evaporation device air outlet in air mixing chamber 111 can be improved to 3 DEG C~6 DEG C, therefore the second wind Machine 6 is preferably with for DC fan.Since the air quantity of 11 demand of circulation air path is larger, the first wind turbine 4 selects AC blower fan.On It states one end that the correspondence of air mixing chamber 111 is connected to circulation air path 11 and offers multiple cutoff holes, air mixing chamber 111 is by cutting Discharge orifice is connected to circulation air path 11.Under door opening state, the higher air of in-cabinet temperature and evaporator 2 that the second wind turbine 6 extracts are straight It connects the lower air of the temperature distributed and carries out mixing realization temperature promotion in air mixing chamber 111.Due to setting for the second wind turbine 6 Meter air quantity is far smaller than the first wind turbine 4 of reversible exchange, under the sweeping along of the first wind turbine 4, along the whole of the second air outlet 32 The air-flow that discharge orifice 71 is blown out is formed down the higher second air curtain layer of temperature.The air-flow that the rectification hole 71 of first air outlet 31 is blown out The first air curtain formed can form cold water vapour layer since temperature is low after crossing with extraneous damp-heat air, containing a large amount of steam, And the second air curtain layer of the higher temperature positioned inside can form one layer of protection, prevent steam from entering inside cabinet.First and second Air curtain layer barrier refrigerator inner cavity is exchanged with the temperature humidity of environment, and outer air is finally discharged outside refrigerator, is recycled in air, Negative pressure can be formed in refrigerator during this, interferes the formation of air curtain.But, it is contemplated that refrigerator of the invention, enabling it is main Purpose be access article, no matter article size, the stretching of stretching into of hand all penetrates air curtain.During this, it is equivalent to A cavity without any obstacle is opened in air curtain, extraneous air-flow can enter along the position of hand inside refrigerator, reach interior External pressure dynamic balance.
Optionally, after shutdown, reversible 4 backing of the wind of the first wind turbine, the second wind turbine 6 becomes and the first wind turbine again 4 input wind regime in the same direction so that air is recycled in cabinet, improves the temperature uniformity inside refrigerator.
The control method of the present embodiment is as follows:Shutdown state, the first wind turbine 4 are controlled toward shutdown direction and rotate(Such as up time Needle rotates)So that air sucks circulation air path 11 from the first and second air outlet 31,32 and auxiliary air port 5, then passes through evaporator 2 Be drained into cabinet from the air inlet 33 of circulation air path 11 again, by constantly recycling so that keep in cabinet a certain range temperature and The operating of humidity, the second wind turbine 6 substantially increases the air quantity into circulation air path 11;Door opening state, the controlled reversion of the first wind turbine 4 (It rotates counterclockwise), reflux occurs for the air flow direction in circulation air path 11, and air is followed from the sucking of the air inlet 33 of circulation air path 11 Ring air duct 11 is discharged and the cabinet at the position that is open in cabinet from the first and second air outlet 31,32 respectively again after then passing through evaporator 2 Frame is formed about the first and second air curtain being subcooled vertically downward, the higher air of in-cabinet temperature and evaporator that the second wind turbine 6 extracts The 2 lower air of temperature directly distributed carry out mixing in air mixing chamber 111 and realize that promotion is discharged from the second air outlet 32 Air themperature.
Embodiment 4
The freezer structure of the present embodiment is similar to Example 2, and difference is:Above-mentioned circulation air path 11 corresponds to the second air outlet 32 Air mixing chamber 111 is equipped in the air duct of section between evaporator 2,111 one end of air mixing chamber is connected to circulation air path 11, empty 111 other end of gas mixing chamber is connected to the second air outlet 32, and air mixing chamber 111 offers auxiliary air port 5, assists 5, air port In 1 inner top of cabinet, air mixing chamber 111 is connected to by auxiliary air port 5 with 1 inner cavity of cabinet, assists being equipped with movable valve in air port 5 Door, when door opening state, movable valve is closed, and auxiliary air port 5 is enclosed, and air-flow is all from the discharge of the first and second air outlet 31,32; When shutdown state, movable valve is opened, and the first wind turbine 4 reversion, air is inhaled from the first and second air outlet 31,32 and auxiliary air port 5 Enter to enter in circulation air path 11, improves air circulation.
The control method of the present embodiment:Shutdown state, the first wind turbine 4 are controlled toward shutdown direction and rotate(Such as turn clockwise It is dynamic), movable valve opening so that air sucks circulation air path 11 from the first and second air outlet 31,32 and auxiliary air port 5, then wears Pervaporation device 2 is drained into from the air inlet 33 of circulation air path 11 in cabinet again, by constantly recycling so that a certain range is kept in cabinet Temperature and humidity;Door opening state, the controlled reversion of the first wind turbine 4(It rotates counterclockwise), movable valve closing, auxiliary 5 quilt of air port It sealing, reflux occurs for the air flow direction in circulation air path 11, and air sucks circulation air path 11 from the air inlet 33 of circulation air path 11, It then passes through after evaporator 2 and to be discharged from the first and second air outlet 31,32 and be formed about in the be open cabinet frame at position of cabinet respectively again The first and second air curtain being subcooled vertically downward.
Embodiment 5
The freezer structure of the present embodiment is similar to Example 2, and difference is:Above-mentioned circulation air path 11 corresponds to the second air outlet 32 Air mixing chamber 111 is equipped in the air duct of section between evaporator 2,111 one end of air mixing chamber is connected to circulation air path 11, empty 111 other end of gas mixing chamber is connected to the second air outlet 32, and air mixing chamber 111 offers auxiliary air port 5, assists 5, air port In 1 inner top of cabinet, air mixing chamber 111 is connected to by auxiliary air port 5 with 1 inner cavity of cabinet, assists being equipped with movable valve in air port 5 Door, and heater is equipped in air mixing chamber 111, the air themperature for flowing through air mixing chamber 111 is promoted by heater.It opens the door When state, movable valve is closed, and auxiliary air port 5 is enclosed, and heater is added to being heated by the air of air mixing chamber 111 The air of heat is finally discharged from the second air outlet 32 so that temperature ladder existing for the air-flow flowed out from the first and second air outlet 31,32 Degree is poor(The temperature of the air-flow flowed out from the second air outlet 32 is higher than the temperature of the air-flow flowed out from the first air outlet 31), reduce cabinet The steam of outer formation enters in cabinet.When shutdown state, movable valve is opened, and the first wind turbine 4 reversion, heater stops heating, empty Gas is inhaled into from the first and second air outlet 31,32 and auxiliary air port 5 into circulation air path 11, improves air circulation.
The control method of the present embodiment:Shutdown state, the first wind turbine 4 are controlled toward shutdown direction and rotate(Such as turn clockwise It is dynamic), movable valve opening, heater stopping heating so that air is followed from the first and second air outlet 31,32 and the sucking of auxiliary air port 5 Ring air duct 11 then passes through evaporator 2 and is drained into cabinet from the air inlet 33 of circulation air path 11 again, by constantly recycling so that The temperature and humidity of a certain range is kept in cabinet;Door opening state, the controlled reversion of the first wind turbine 4(It rotates counterclockwise), movable valve It closes, auxiliary air port 5 is enclosed, and reflux occurs for the air flow direction in circulation air path 11, and heater is to passing through air mixing chamber 111 Air heating, air sucks circulation air path 11 from the air inlet 33 of circulation air path 11, then pass through after evaporator 2 again respectively from First and second air outlet 31,32 is discharged and the cabinet frame at cabinet opening position is formed about the first and second wind being subcooled vertically downward Curtain.
Embodiment 6
The freezer structure of the present embodiment is similar to Example 5, and difference is:Eliminate the auxiliary air port 5 of air mixing chamber 111 And the movable valve in auxiliary air port 5.When shutdown state, air can only be inhaled into entrance from the first and second air outlet 31,32 In circulation air path 11.The air themperature for flowing through air mixing chamber 111 is promoted by heater so that the first and second air outlet 31,32 Temperature gradient existing for effluent stream is poor, reduces the steam formed outside cabinet and enters in cabinet.
The control method of the present embodiment:Shutdown state, the first wind turbine 4 are controlled toward shutdown direction and rotate(Such as turn clockwise It is dynamic), heater stopping heating so that air sucks circulation air path 11 from the first and second air outlet 31,32, then passes through evaporator 2 Be drained into cabinet from the air inlet 33 of circulation air path 11 again, by constantly recycling so that keep in cabinet a certain range temperature and Humidity;Door opening state, the controlled reversion of the first wind turbine 4(It rotates counterclockwise), the air flow direction in circulation air path 11 occurs reflux, adds Hot device by the air of air mixing chamber 111 to heating, and air sucks circulation air path 11 from the air inlet 33 of circulation air path 11, so Afterwards after evaporator 2 again respectively from the first and second air outlet 31,32 be discharged and cabinet be open position cabinet frame be formed about it is vertical Straight the first and second air curtain being subcooled downwards.
Embodiment 7
The freezer structure of the present embodiment is similar to Example 3, and difference is:The second wind turbine 6 is eliminated, air pressure pump is utilized Instead of the second wind turbine 6, air pressure pump is mounted on the installation site of original second wind turbine 6, the outlet of air pressure pump and air Mixing chamber 111 is connected to, and the entrance of air pressure pump is connected to the inner cavity of cabinet 1, by air pressure pump extraction in-cabinet temperature compared with High air enters air mixing chamber 111, and the lower air of the temperature directly distributed with evaporator 2, which mix, realizes temperature It is promoted.
The control method of the present embodiment is similar to Example 3, and the work of the second wind turbine 6 is replaced just with air pressure pump With.
Obviously, the above embodiment of the present invention be only to clearly illustrate example of the present invention, and not be pair The restriction of embodiments of the present invention.For those of ordinary skill in the art, may be used also on the basis of the above description To make other variations or changes in different ways.There is no necessity and possibility to exhaust all the enbodiments.It is all this All any modification, equivalent and improvement etc., should be included in the claims in the present invention made by within the spirit and principle of invention Protection domain within.

Claims (8)

1. a kind of refrigerator, including cabinet(1), which is characterized in that the cabinet(1)Equipped with making cabinet(1)Opening position formed The air channel structure of first air curtain and the second air curtain, the first air curtain are located on the outside of the second air curtain, and the temperature of the second air curtain is higher than the The temperature of one air curtain.
2. refrigerator according to claim 1, it is characterised in that:The air channel structure includes being set to cabinet(1)Wall portion Circulation air path(11), be set to circulation air path(11)Interior evaporator(2)With the first wind turbine(4), circulation air path(11)One end set There is air inlet(33), circulation air path(11)The other end be respectively equipped with the first and second air outlet(31、32), the first and second air outlet (31、32)Positioned at cabinet(1)Opening position cabinet arch, and the first and second air outlet(31、32)It is opening down, first Air outlet(31)Positioned at the second air outlet(32)Outside, the first air outlet(31)Air-flow the first air curtain of formation of outflow, second Air outlet(32)The air-flow of outflow forms the second air curtain, first and second air outlet(31、32)It is respectively equipped with rectifier(7), whole Flow device(7)Rectification hole(71)Downward, described to be located at the first air outlet(31)In rectifier(7)Go out higher than positioned at second Air port(32)In rectifier(7), and it is located at the first air outlet(31)In rectifier(7)Rectification hole be located at the second outlet air Mouthful(32)In rectifier(7)Rectification hole it is parallel.
3. refrigerator according to claim 2, it is characterised in that:The circulation air path(11)Air inlet(33)With cabinet (1)Inner cavity connection, the first wind turbine(4)For reversible wind turbine.
4. refrigerator according to claim 1, it is characterised in that:The cabinet(1)Interior operating temperature range is 8 DEG C~20 DEG C, humidity range be 35%~75%.
5. refrigerator according to claim 2, it is characterised in that:The circulation air path(11)Corresponding second air outlet(32)With Evaporator(2)Between section air duct in be equipped with air mixing chamber(111), air mixing chamber(111)One end and circulation air path(11) Connection, air mixing chamber(111)The other end and the second air outlet(32)Connection, air mixing chamber(111)Offer auxiliary air port (5), assist air port(5)Inside it is equipped with the second wind turbine(6), assist air port(5)Outlet and air mixing chamber(111)Connection, auxiliary Air port(5)Entrance and cabinet(1)Inner cavity connection.
6. refrigerator according to claim 2, it is characterised in that:The circulation air path(11)Corresponding second air outlet(32)With Evaporator(2)Between section air duct in be equipped with air mixing chamber(111), air mixing chamber(111)One end and circulation air path(11) Connection, air mixing chamber(111)The other end and the second air outlet(32)Connection, air mixing chamber(111)It is interior to be equipped with heater.
7. refrigerator according to claim 6, it is characterised in that:The air mixing chamber(111)Offer auxiliary air port (5), assist air port(5)Interior be equipped with is equipped with movable valve.
8. refrigerator according to claim 2, it is characterised in that:The circulation air path(11)Corresponding second air outlet(32)With Evaporator(2)Between section air duct in be equipped with air mixing chamber(111), air mixing chamber(111)One end and circulation air path(11) Connection, air mixing chamber(111)The other end and the second air outlet(32)Connection, air mixing chamber(111)Offer auxiliary air port (5), assist air port(5)It is interior to be equipped with air pressure pump, the outlet of air pressure pump and air mixing chamber(111)Connection, air pressure Contract the entrance and cabinet pumped(1)Inner cavity connection.
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CN106820789B (en) * 2017-03-24 2023-06-13 宣城市艺雪制冷设备有限公司 Double-evaporator vertical refrigeration showcase
CN109883105A (en) * 2019-03-07 2019-06-14 海信容声(广东)冷柜有限公司 A kind of refrigerator
CN110345685B (en) * 2019-06-27 2021-11-12 浙江优纳特科学仪器有限公司 Refrigerator
CN116007270A (en) * 2021-10-22 2023-04-25 重庆海尔制冷电器有限公司 Refrigerating and freezing device

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