CN113446778A - Refrigerator with a door - Google Patents
Refrigerator with a door Download PDFInfo
- Publication number
- CN113446778A CN113446778A CN202010230609.3A CN202010230609A CN113446778A CN 113446778 A CN113446778 A CN 113446778A CN 202010230609 A CN202010230609 A CN 202010230609A CN 113446778 A CN113446778 A CN 113446778A
- Authority
- CN
- China
- Prior art keywords
- air
- transmission gear
- main
- duct
- air curtain
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000005540 biological transmission Effects 0.000 claims description 103
- 239000006260 foam Substances 0.000 claims description 45
- 230000007246 mechanism Effects 0.000 claims description 9
- 238000007664 blowing Methods 0.000 claims description 5
- 230000009471 action Effects 0.000 claims description 4
- 238000005192 partition Methods 0.000 claims description 4
- 238000005057 refrigeration Methods 0.000 description 9
- 230000002265 prevention Effects 0.000 description 4
- 238000007710 freezing Methods 0.000 description 3
- 230000008014 freezing Effects 0.000 description 3
- 125000006850 spacer group Chemical group 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 241000255925 Diptera Species 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000004378 air conditioning Methods 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000009246 food effect Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 239000003507 refrigerant Substances 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
Images
Classifications
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
- F25D17/04—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
- F25D17/042—Air treating means within refrigerated spaces
- F25D17/045—Air flow control arrangements
-
- 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
- F25D17/065—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 with compartments at different temperatures
-
- 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
- F25D2317/06—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 with forced air circulation
- F25D2317/068—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 with forced air circulation characterised by the fans
- F25D2317/0683—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 with forced air circulation characterised by the fans the fans not of the axial type
Landscapes
- 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 provides a refrigerator, which comprises a storage room, a second air curtain air channel, a fan accommodating cavity, a first air curtain air channel and a main air supply air channel, wherein the storage room is formed by enclosing a box liner, the second air curtain air channel is arranged on the top wall of the box liner, and an air curtain air outlet is formed at the front end of the second air curtain air channel; when the storage room is closed, the air inlet of the air curtain is closed, and the main air inlet is opened; when the storage room is opened, the air inlet of the air curtain is opened, and the main air inlet is closed; according to the invention, different air channels are opened according to the opening and closing state of the storage room, on one hand, air curtain air outlet at the door opening stage of the storage room of the refrigerator can be realized, so that the loss of cold quantity of the storage room and the heat exchange inside and outside the storage room are effectively blocked; on the other hand, the main air inlet is closed at the opening stage of the storage room, so that resources can be effectively saved.
Description
Technical Field
The invention belongs to the technical field of refrigerators, and particularly relates to a refrigerator.
Background
Refrigerators occupy an important share of the market as indispensable electric appliances in home life. With the increase of the quality requirements of consumers for fresh food, the requirements for refrigerators are also higher and higher, and the refrigerators are required to have higher configuration and stronger functions. The air curtain is also called as air curtain, and is mainly applied above doors of markets, theaters, hotels, restaurants and the like with refrigeration, air conditioning, dust prevention and heat insulation, can isolate indoor and outdoor air, prevents the indoor and outdoor air from carrying out cold and heat exchange, and has the functions of dust prevention, pollution prevention and mosquito and fly prevention.
For air-cooled refrigerator products, according to the existing experimental tests: when the ambient temperature is 30 ℃, the refrigerator is opened for 10 seconds, the temperature in the refrigerator rises to 5-6 ℃, and if the refrigerator is opened for 1-2 minutes, the temperature in the refrigerator reaches the external ambient temperature. After the refrigerating door is closed, if the room temperature is returned to the set temperature again, the compressor is continuously operated for at least more than 20 minutes. At present, a large amount of cold energy loss exists in the door opening stage of the refrigerator, the refrigerator door opening stage not only can bring huge temperature fluctuation to a compartment and influence the fresh-keeping effect of food materials, but also can correspondingly increase the power consumption of the refrigerator.
The invention is provided in view of the above.
Disclosure of Invention
The invention provides a refrigerator aiming at the technical problems.
In order to achieve the purpose, the invention adopts the technical scheme that:
a refrigerator, comprising:
the storage room is surrounded by the box liner, and an opening is formed at the front end of the storage room;
the second air curtain air channel is arranged on the top wall of the box liner and forms an air curtain air outlet at the opening end of the box liner;
the fan accommodating cavity is arranged on the rear wall of the box liner, and a centrifugal fan is arranged in the fan accommodating cavity;
the first air curtain air duct extends to the top end of the box liner from bottom to top, the lower end of the first air curtain air duct is communicated with the fan accommodating cavity through an air curtain air inlet, and the upper end of the first air curtain air duct is communicated with the second air curtain air duct;
one end of the main air supply duct is communicated with the fan accommodating cavity through a main air inlet, and the other end of the main air supply duct is communicated with the storage room;
when the storage room is closed, the air curtain air inlet is closed, the main air inlet is opened, and under the action of the centrifugal fan, airflow sequentially passes through the fan accommodating cavity and the main air supply duct to enter the storage room;
when the storage room is opened, the air curtain air inlet is opened, the main air inlet is closed, under the action of the centrifugal fan, air flow sequentially passes through the fan accommodating cavity, the first air curtain air channel and the second air curtain air channel and is guided out through the air curtain air outlet, and an air curtain is formed at the opening end of the storage room.
Preferably, the main air supply duct is arranged on one side of the first air curtain duct close to the rear wall of the box liner; and the main air supply duct and the first air curtain duct are at least partially overlapped along the direction vertical to the rear wall of the box liner.
Preferably, the main air inlet and the air curtain air inlet are arranged in parallel;
the air curtain air inlet and the main air inlet are provided with double control air doors for controlling the opening and closing states of the air curtain air inlet and the main air inlet, so that one of the air curtain air inlet and the main air inlet is opened, and the other one of the air curtain air inlet and the main air inlet is closed.
Preferably, the double control air door comprises an air curtain air door baffle matched with the air curtain air inlet, a main air supply air door baffle matched with the main air inlet, and a gear transmission mechanism for controlling the opening and closing states of the air curtain air door baffle and the main air supply air door baffle.
Preferably, the gear transmission mechanism comprises a driving motor, a main transmission gear meshed with the driving motor, a third transmission gear and a fourth transmission gear which are in transmission connection with the main transmission gear and keep rotating in the same direction, a fifth transmission gear fixed with the air curtain air door baffle and matched with the third transmission gear, and a sixth transmission gear fixed with the main air supply air door baffle and matched with the fourth transmission gear; the third transmission gear and the fourth transmission gear are both provided with a tooth meshing area and a smooth area;
when the fifth transmission gear is meshed with the meshing area of the third transmission gear to open or close the air curtain air inlet, the sixth transmission gear is matched with the smooth area of the fourth transmission gear, and the main air supply damper baffle closes the main air inlet;
and when the sixth transmission gear is meshed with the meshing area of the fourth transmission gear to open or close the main air inlet, the fifth transmission gear is matched with the smooth area of the third transmission gear, and the air curtain air door baffle closes the air curtain air inlet.
Preferably, the gear transmission mechanism comprises a first transmission gear and a second transmission gear which are both meshed with the main transmission gear, wherein the third transmission gear is coaxially fixed with the first transmission gear, and the fourth transmission gear is coaxially fixed with the second transmission gear.
Preferably, the refrigerator comprises a first air duct assembly, and the first air duct assembly comprises a first cover plate arranged on the rear wall of the refrigerator liner and a volute positioned on the rear side of the first cover plate;
a first foam piece is arranged between the first cover plate and the volute, and the first foam piece and the volute define a blowing chamber together.
Preferably, the first air duct assembly comprises a second cover plate arranged on the top wall of the tank liner, a second foam piece is arranged between the second cover plate and the top wall of the tank liner, and the second foam piece and the top wall of the tank liner define the second air curtain air duct together.
Preferably, a plurality of air supply ducts are formed in the air supply chamber with the centrifugal fan as a center; the plurality of air supply channels comprise a main air supply channel positioned in an area above the centrifugal fan and a directional air supply channel positioned in an area below the centrifugal fan; the first air curtain air duct and the main air supply air duct are separated by a foam partition plate, and the directional air supply air duct is communicated with the storage room.
Preferably, the first foam piece and the second foam piece are connected through a guide foam piece; and a guide air duct communicated with the first air curtain air duct and the second air curtain air duct is arranged on the guide foam piece.
Compared with the prior art, the invention has the advantages and positive effects that:
the present invention provides a refrigerator, comprising: the air conditioner comprises a storage room, a second air curtain air channel, a fan accommodating cavity, a first air curtain air channel and a main air supply air channel, wherein the storage room is surrounded by a box liner, the second air curtain air channel is arranged on the top wall of the box liner, and an air curtain air outlet is formed at the opening end of the box liner; when the storage room is closed, the air inlet of the air curtain is closed, and the main air inlet is opened; when the storage room is opened, the air inlet of the air curtain is opened, and the main air inlet is closed; according to the invention, different air channels are opened according to the opening and closing state of the storage room, on one hand, air curtain air outlet at the door opening stage of the storage room of the refrigerator can be realized, so that the loss of cold quantity of the storage room and the heat exchange inside and outside the storage room are effectively blocked; on the other hand, the main air inlet is closed at the opening stage of the storage room, so that resources can be effectively saved.
Drawings
FIG. 1 is a schematic view of the overall structure of a refrigerator according to the present invention;
FIG. 2 is a schematic diagram of the relative relationship between the cabinet liner and the first air duct assembly of the refrigerator according to the present invention;
FIG. 3 is an exploded view of a first air duct assembly of the refrigerator according to the present invention;
FIG. 4 is a schematic view of a portion of a first air duct assembly of the refrigerator according to the present invention;
FIG. 5 is another schematic structural view of a portion of the first air duct assembly of the refrigerator according to the present invention;
FIG. 6 is a schematic view illustrating a structure of a guide foam of a first air duct assembly of the refrigerator according to the present invention;
FIG. 7 is an assembly view of the cabinet liner and the first air duct assembly of the refrigerator according to the present invention;
FIG. 8 is a cross-sectional view taken along A-A of FIG. 7;
FIG. 9 is an enlarged view of area A of FIG. 8;
FIG. 10 is an enlarged view of area B of FIG. 8;
FIG. 11 is a schematic structural view illustrating a double control damper of a refrigerator in a fully closed state according to the present invention;
fig. 12 is a sectional view illustrating a fully closed state of the double control damper of the refrigerator according to the present invention;
FIG. 13 is a schematic structural view of a double control damper of a refrigerator according to the present invention with an open air inlet of the air curtain;
FIG. 14 is a sectional view of the double damper of the refrigerator with the air curtain inlet open;
FIG. 15 is a schematic structural view of a double control damper of a refrigerator according to the present invention with a main air inlet open;
FIG. 16 is a sectional view of the double control damper of the refrigerator according to the present invention, showing the main air inlet opened;
fig. 17 is a schematic structural view of a gear transmission mechanism of the refrigerator according to the present invention.
In the above figures:
a refrigerator 10; a case 11; a housing 111; a tank bladder 112; a rear wall 112 a; a top wall 112 b; a refrigerating compartment 12; a centrifugal fan 1; a first cover plate 2; a first foam piece 3; a volute 4; a suction port 41; an air supply chamber 20; a main air supply duct 31; a main outlet 31 b; a main air inlet 31 a; a directional supply air duct 32; a directional outlet vent 32 a; a directional blast damper 321; a first air curtain duct 33; a second cover plate 5; a second foam piece 6; a second air curtain duct 61; an air curtain outlet 61 b; an air curtain air inlet 33 a; the return air opening 42 a; a guide foam member 7; a guide duct 7 a; a foam spacer 8; the guide ribs 34; a double control air door 9; a housing 91; an air curtain damper flap 92; a main supply air damper baffle 93; the gear transmission 94; a first through hole 95; a second through hole 96; the drive motor 94 a; a main drive gear 940; a first transmission gear 941; a second gear 942; a third transmission gear 943; a fourth transfer gear 944; a fifth transfer gear 945; a sixth transfer gear 946; a toothed region 97 a; smooth region 97 b.
Detailed Description
The present invention is further described below in conjunction with specific examples to enable those skilled in the art to better understand the present invention and to practice it, but the scope of the present invention as claimed is not limited to the scope described in the specific embodiments. It should be noted that the embodiments and features of the embodiments in the present application may be arbitrarily combined with each other without conflict.
It should be noted that all directional indicators (such as up, down, left, right, front, and back) in the embodiments of the present invention are only used to explain the relative position relationship between the components, the motion situation, and the like in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.
In addition, the descriptions related to "first", "second", etc. in the present invention are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature.
In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
Referring to fig. 1 to 17, a refrigerator 10, the refrigerator 10 includes a heat-insulated cabinet 11, and the cabinet 11 includes an outer case 111, a cabinet liner 112, and a heat-insulating layer (not shown) therebetween. The cabinet 11 defines a plurality of insulated storage compartments to store food and the like. In the present embodiment, the storage compartments are a refrigerating compartment 12 located at an upper portion and a freezing compartment located at a bottom portion, respectively. The storage compartments may be closed by respective corresponding doors, which may be coupled to the cabinet 11 to be laterally rotated. The refrigerating chamber 12 is provided with a refrigerating side-by-side door, and the freezing chamber is provided with a freezing side-by-side door.
It should be understood that the present invention should not be limited to a particular distribution of the storage compartments of the refrigerator 10, and that the present invention may also be applied to other types of refrigerators 10, such as those having a drawer-type door, for example, 10.
The refrigerator 10 has an evaporative refrigeration system forming a closed loop configured to supply cold air to the storage compartment. The refrigeration system may generate cold air using latent heat of vaporization of a refrigerant through a cooling cycle; the refrigeration system includes at least a compressor (not shown), a condenser (not shown), a throttle device (not shown), and an evaporator (not shown). Since such a refrigeration system is well known in the art, further description thereof is omitted. Of course, other types of refrigeration systems (e.g., absorption refrigeration systems, thermoelectric refrigeration systems) may be used with the refrigerator 10.
In this embodiment, the evaporative refrigeration system includes an evaporator compartment (not shown) in which the evaporator is disposed; the refrigerator is provided with a compartment air supply duct and a compartment air return duct; one end of the compartment air supply duct is communicated with the refrigerating chamber, and the other end of the compartment air supply duct is communicated with the evaporator bin; one end of the compartment air return duct is communicated with the refrigerating chamber, and the other end of the compartment air return duct is communicated with the evaporator bin. The low-temperature air passing through the evaporator enters the refrigerating chamber through the compartment air supply duct; the heated air passing through the refrigerating chamber returns to the evaporator bin through the compartment return air duct.
A first air duct assembly (i.e., the first air duct assembly covers the rear wall and the top wall of the cabinet liner 112) overlapping with the rear wall 112a and the top wall 112b of the cabinet liner 112 is arranged in the cabinet liner 112, so that air can be guided into the refrigerating chamber 12 from the rear part of the cabinet liner 112 after passing through the first air duct assembly to keep the low temperature in the cabinet liner 112; on the other hand, the air can be guided into the refrigerating chamber 12 from the foremost top of the cabinet container 112 to form an air curtain at the position of the refrigerating chamber 12 near the door opening.
The first air duct assembly comprises a first cover plate 2 arranged on the rear wall 112a of the tank container 112 and a second cover plate 5 arranged on the top wall 112b of the tank container 112; the first cover plate 2 and the second cover plate 5 may be integrally formed, but in the present embodiment, the first cover plate 2 and the second cover plate 5 are separately provided and are assembled with each other to form the air duct cover plate.
A first foam piece 3 is arranged between the first cover plate 2 and the rear wall 112a of the tank container 112, and a second foam piece 6 is arranged between the second cover plate 5 and the top wall 112b of the tank container 112. Wherein, the first foam piece 3 is attached to the first cover plate 2; the second foam piece 6 is attached to the second cover plate 5.
The volute 4 is arranged on one side, close to the tank liner 112, of the first cover plate 2, the volute 4 is fixedly connected with the first cover plate 2, and the volute 4 and the first foam piece 3 jointly define an air supply chamber 20 and a fan accommodating cavity communicated with the air supply chamber 20.
The second cover plate 5 is fixedly connected to the top wall 112b of the tank liner 112, and the second foam member 6 and the top wall 112b of the tank liner 112 jointly define a second air curtain duct 61, and an air curtain air outlet 61b is formed at the front end of the tank liner 112.
The first air duct assembly comprises a centrifugal fan 1 arranged on the first cover plate 2, and a suction inlet 41 corresponding to the centrifugal fan 1 is arranged on the volute 4 so as to communicate the fan accommodating cavity with the compartment air supply air duct. The lower end of the first cover plate 2 is provided with an air return opening 42a for communicating the refrigerating chamber 12 and the compartment air return duct.
In the air blowing chamber 20, a plurality of air blowing ducts are formed centering on the centrifugal fan 1 to guide the air cooled by the evaporator to the refrigerating chamber 12 or the corresponding storage drawer. The plurality of air supply ducts include a main air supply duct 31 located in an area above the centrifugal fan 1 on the first foam member 3, and a directional air supply duct 32 located in an area below the centrifugal fan 1.
In this embodiment, the volute 4 is engaged with the first cover plate 2, and a main air outlet 31b communicating the main air supply duct 31 and the storage compartment is formed at the end of the air supply chamber 20 close to two opposite side walls of the tank container 112; the lower end of the first cover plate 2 is formed with a directional air outlet 32a communicating the directional air supply duct 32 and the refrigerating chamber 12, so that cool air is guided to the storage drawer installed at the lower portion of the refrigerating chamber 12 through the directional air outlet 32 a. In this embodiment, the directional air supply duct 32 is provided with a directional air supply damper 321 therein, so as to open or close the directional air supply damper 321 according to actual requirements, thereby effectively controlling the temperature of the storage drawer at the lower part of the refrigerating chamber 12 and improving the fresh-keeping effect.
The first foam member 3 is formed with a first air curtain duct 33 extending from bottom to top to the top end of the first foam member 3. The first air curtain air duct 33 is arranged at the front side of the main air supply air duct 31; in the front-rear direction, the first air curtain duct 33 at least partially overlaps the main air supply duct 31. Namely, a double-layer air duct is arranged in the area above the centrifugal fan 1 on the first foam piece 3; the first air curtain air duct 33 is arranged on one side of the double-layer air duct close to the door, and the main air supply air duct 31 is arranged adjacent to the first air curtain air duct 33 and is positioned on one side of the first air curtain air duct 33 far away from the door.
The first foam piece 3 is connected with the second foam piece 6 through a guide foam piece 7; and a guide air duct 7a communicating the first air curtain air duct 33 and the second air curtain air duct 61 is provided on the guide foam 7.
The first air curtain duct 33 is separated from the main air supply duct 31 by the foam partition 8. The foam spacer 8 and the first foam element 3 may be integrally formed; however, in the present embodiment, the foam spacer 8 is provided separately from the first foam member 3 and is assembled with each other to form a double duct. In this embodiment, a guide rib 34 is provided in an area of the first foam member 3 corresponding to the foam partition 8 to guide the wind flowing through the first wind curtain duct 33. The double-layer air duct arrangement of the middle main air supply air duct and the air curtain air duct in the invention can fully utilize the structure of the original refrigerator air duct and realize air curtain air outlet at the door opening stage of the refrigerating chamber 12 of the refrigerator so as to effectively block the loss of the cold energy of the refrigerating chamber 12 and the heat exchange inside and outside the refrigerating chamber 12. In this embodiment, the centrifugal fan 1 can drive the air in the fan accommodating cavity to enter the refrigerating chamber 12 from the main air outlet 31b through the main air supply duct 31; on the other hand, the air in the refrigerating chamber 12 can be driven to pass through the first air curtain duct 33 and the second air curtain duct 61 in sequence and then be guided out through the air curtain air outlet 61b, so that an air curtain is formed at the front end of the refrigerator.
The air curtain air inlet 33a of the first air curtain air duct 33 is arranged in parallel with the main air inlet 31a of the main air supply duct 31. The air curtain air inlet 33a and the main air inlet 31a are provided with double control air doors 9, and the opening or closing state of the air curtain air inlet 33a and the main air inlet 31a is independently controlled according to the requirement, so that one of the air curtain air inlet 33a and the main air inlet 31a is opened, and the other one is closed. Namely, in the closed state of the refrigerator door, the air curtain air inlet 33a is closed, and air is supplied only through a plurality of air supply channels, so that the circulation of air flow in the refrigerating chamber 12 is realized; when the refrigerator door is opened, the main air inlet 31a (and/or the directional air supply air door 321) is closed, the air curtain air inlet 33a is opened, cold air enters the first air curtain air channel 33 through the air curtain air inlet 33a, sequentially passes through the guide air channel 7a and the second air curtain air channel 61, and is finally guided out through the air curtain air outlet 61b, so that an air curtain is formed at the front end of the refrigerator, the refrigerator and the external environment are isolated, the internal and external heat exchange of the refrigerator is reduced, and the internal low-temperature state of the refrigerator is kept.
The double-control air door 9 comprises a shell 91 fixed on the first foam piece 3, an air curtain air door baffle 92, a main air supply air door baffle 93 and a gear transmission mechanism 94 for controlling the opening and closing states of the air curtain air door baffle 92 and the main air supply air door baffle 93; the shell 91 is provided with a first through hole 95 opposite to the air curtain air inlet 33a and a second through hole 96 corresponding to the main air inlet 31 a; the air curtain damper baffle 92 corresponds to the first through hole 95, and opens or closes the air curtain air inlet 33a by rotating; the main air supply damper door 93 corresponds to the second through hole 96, and opens or closes the main air inlet 31a by rotating.
As shown in fig. 11 to 17, the gear transmission mechanism 94 includes a driving motor 94a, a main transmission gear 940 engaged with the driving motor 94a, a first transmission gear 941 and a second transmission gear 942 both engaged with the main transmission gear 940, a third transmission gear 943 coaxially fixed with the first transmission gear 941, a fourth transmission gear 944 coaxially fixed with the second transmission gear 942, a fifth transmission gear 945 fixed with the wind curtain damper flap 92 and engaged with the third transmission gear 943, and a sixth transmission gear 946 fixed with the main wind supply damper flap 93 and engaged with the fourth transmission gear 944. As can be seen from the above-described transmission arrangement, the third transmission gear 943 and the fourth transmission gear 944 are rotated in the same direction, and both are rotated in the same direction as the driving motor 94 a.
Wherein, the third transmission gear 943 and the fourth transmission gear 944 are both provided with a meshing area 97a and a smooth area 97 b;
when the double control damper 9 is in the initial state, as shown in fig. 11 to 12, both the air curtain damper flap 92 and the main supply damper flap 93 are in the closed state; at this point, fifth transfer gear 945 and third transfer gear 943 are at the threshold point of engagement and disengagement (with smooth region 97 b), while sixth transfer gear 946 and fourth transfer gear 944 are also at the threshold point of engagement and disengagement (with smooth region 97 b).
The driving motor 94a rotates in a first direction, and the third transmission gear 943 and the sixth transmission gear 946 both rotate in the first direction; fifth transfer gear 945 is engaged with mesh region 97a of third transfer gear 943; the sixth transfer gear 946 reacts with the smooth area 97b of the fourth transfer gear 944 to disengage the fourth transfer gear 944.
Conversely, the driving motor 94a rotates in a second direction opposite to the first direction, and the third transmission gear 943 and the sixth transmission gear 946 both rotate in the second direction; fifth transfer gear 945 reacts with smooth area 97b of third transfer gear 943 to disengage third transfer gear 943; the sixth transfer gear 946 meshes with the meshing engagement area 97a of the fourth transfer gear 944.
That is, in the present embodiment, under the setting of the initial state of the dual damper 9, there are two cases of control:
(1) as shown in fig. 13 to 14, when the driving motor 94a rotates in the first direction, the fifth transmission gear 945 is engaged with the third transmission gear 943 and drives the air curtain damper flap 92 to rotate to open the air curtain inlet 33 a; at this time, the sixth transfer gear 946 engages the smooth area 97b of the fourth transfer gear 944 to maintain the main supply damper flap 93 in the closed position.
When the air curtain damper 92 returns to the closed state from the open state, the driving motor 94a rotates in the reverse direction (the direction opposite to the first direction), the fifth transmission gear 945 is still engaged with the third transmission gear 943 and drives the air curtain damper 92 to rotate in the reverse direction, so as to close the air curtain air inlet 33 a; at this point, the sixth transfer gear 946 still engages the smooth area 97b of the fourth transfer gear 944 and the main supply damper flap 93 remains closed.
(2) In the initial state of the double control damper 9, as shown in fig. 15-16, when the driving motor 94a rotates in the second direction (the direction opposite to the first direction), the sixth transmission gear 946 engages with the fourth transmission gear 944 and drives the main blowing damper flap 93 to rotate to open the main air inlet 31 a; at this time, the fifth transmission gear 945 is engaged with the smooth region 97b of the third transmission gear 943, and the curtain damper door 92 is maintained in the closed state.
When the main air supply damper flap 93 returns to the closed state from the open state, the driving motor 94a rotates in the reverse direction (the direction opposite to the second direction), and the sixth transmission gear 946 still engages with the fourth transmission gear 944 and drives the main air supply damper flap 93 to rotate in the reverse direction, so as to close the main air inlet 31 a; at this time, the fifth transfer gear 945 still engages the smooth area 97b of the third transfer gear 943 and the curtain damper door 92 remains closed.
In summary, it can be seen that:
when the fifth transmission gear 945 is meshed with the meshing area 97a of the third transmission gear 943 to open or close the air curtain air inlet 33a, the sixth transmission gear 946 is matched with the smooth area 97b of the fourth transmission gear 944, and the main air supply damper baffle 93 closes the main air inlet 31 a;
the fifth transmission gear 945 is engaged with the smooth area 97b of the third transmission gear 943, and the air curtain damper door 92 closes the air curtain inlet 33 a; the sixth transmission gear 946 is meshed with the meshing area 97a of the fourth transmission gear 944 to open or close the main air inlet 31 a;
the above arrangement enables control of opening the air curtain damper flap 92 and the main air supply damper flap 93 one at a time by the same drive motor 94 a.
When the refrigerator is closed, the driving motor 94a rotates in the second direction to drive the main air supply damper 93 to rotate, so as to open the main air inlet 31a, close the air curtain outlet, and open the main air supply.
When the refrigerator is opened, the driving motor 94a rotates in the first direction to drive the air curtain damper baffle 92 to rotate, so as to open the air curtain air inlet 33a, open the air curtain outlet, and close the main air supply.
In the embodiment, a double-control air door of a single motor is arranged to coordinate the operation relation between the air outlet of the main air supply duct and the air outlet of the air curtain duct, so that the air outlet of the main air supply duct and the air outlet of the air curtain duct are realized when the refrigerator is closed; when the door is opened, the air curtain air duct discharges air, and the main air supply air duct is closed, so that the loss of cold energy of the refrigerating chamber and the heat exchange between the inside and the outside of the refrigerating chamber are effectively blocked; on the other hand, main air supply air door baffle sets up with air curtain air door baffle side by side, consequently can have bigger design degree of freedom when designing main air supply wind channel and air curtain wind channel structure, guarantees the air output requirement in each wind channel and the position of wind gap requirement of arranging more easily.
The above description is only a preferred embodiment of the present invention, and not intended to limit the present invention in other forms, and any person skilled in the art may apply the above modifications or changes to the equivalent embodiments with equivalent changes, without departing from the technical spirit of the present invention, and any simple modification, equivalent change and change made to the above embodiments according to the technical spirit of the present invention still belong to the protection scope of the technical spirit of the present invention.
Claims (10)
1. The refrigerator is characterized in that: it includes:
the storage room is surrounded by the box liner, and an opening is formed at the front end of the storage room;
the second air curtain air channel is arranged on the top wall of the box liner and forms an air curtain air outlet at the opening end of the box liner;
the fan accommodating cavity is arranged on the rear wall of the box liner, and a centrifugal fan is arranged in the fan accommodating cavity;
the first air curtain air duct extends to the top end of the box liner from bottom to top, the lower end of the first air curtain air duct is communicated with the fan accommodating cavity through an air curtain air inlet, and the upper end of the first air curtain air duct is communicated with the second air curtain air duct;
one end of the main air supply duct is communicated with the fan accommodating cavity through a main air inlet, and the other end of the main air supply duct is communicated with the storage room;
when the storage room is closed, the air curtain air inlet is closed, the main air inlet is opened, and under the action of the centrifugal fan, airflow sequentially passes through the fan accommodating cavity and the main air supply duct to enter the storage room;
when the storage room is opened, the air curtain air inlet is opened, the main air inlet is closed, under the action of the centrifugal fan, air flow sequentially passes through the fan accommodating cavity, the first air curtain air channel and the second air curtain air channel and is guided out through the air curtain air outlet, and an air curtain is formed at the opening end of the storage room.
2. The refrigerator according to claim 1, wherein: the main air supply duct is arranged on one side of the first air curtain duct close to the rear wall of the box liner; and the main air supply duct and the first air curtain duct are at least partially overlapped along the direction vertical to the rear wall of the box liner.
3. The refrigerator according to claim 1, wherein:
the main air inlet and the air curtain air inlet are arranged in parallel;
the air curtain air inlet and the main air inlet are provided with double control air doors for controlling the opening and closing states of the air curtain air inlet and the main air inlet, so that one of the air curtain air inlet and the main air inlet is opened, and the other one of the air curtain air inlet and the main air inlet is closed.
4. The refrigerator according to claim 3, wherein: the double-control air door comprises an air curtain air door baffle matched with an air curtain air inlet, a main air supply air door baffle matched with a main air inlet and a gear transmission mechanism for controlling the opening and closing states of the air curtain air door baffle and the main air supply air door baffle.
5. The refrigerator of claim 4, wherein: the gear transmission mechanism comprises a driving motor, a main transmission gear meshed with the driving motor, a third transmission gear and a fourth transmission gear which are in transmission connection with the main transmission gear and keep rotating in the same direction, a fifth transmission gear fixed with the air curtain air door baffle and matched with the third transmission gear, and a sixth transmission gear fixed with the main air supply air door baffle and matched with the fourth transmission gear; the third transmission gear and the fourth transmission gear are both provided with a tooth meshing area and a smooth area;
when the fifth transmission gear is meshed with the meshing area of the third transmission gear to open or close the air curtain air inlet, the sixth transmission gear is matched with the smooth area of the fourth transmission gear, and the main air supply damper baffle closes the main air inlet;
and when the sixth transmission gear is meshed with the meshing area of the fourth transmission gear to open or close the main air inlet, the fifth transmission gear is matched with the smooth area of the third transmission gear, and the air curtain air door baffle closes the air curtain air inlet.
6. The refrigerator according to claim 5, wherein: the gear transmission mechanism comprises a first transmission gear and a second transmission gear which are both meshed with the main transmission gear, wherein the third transmission gear is coaxially fixed with the first transmission gear, and the fourth transmission gear is coaxially fixed with the second transmission gear.
7. The refrigerator according to any one of claims 1 to 6, wherein: the refrigerator comprises a first air duct assembly, wherein the first air duct assembly comprises a first cover plate arranged on the rear wall of the refrigerator liner and a volute positioned on the rear side of the first cover plate;
a first foam piece is arranged between the first cover plate and the volute, and the first foam piece and the volute define a blowing chamber together.
8. The refrigerator according to claim 7, wherein: first wind channel subassembly is including locating second apron on the case courage roof, the second apron with be equipped with the second foam spare between the case courage roof, just the second foam spare with the case courage roof is injectd jointly the second air curtain wind channel.
9. The refrigerator according to claim 8, wherein: in the air supply chamber, a plurality of air supply channels are formed by taking the centrifugal fan as the center; the plurality of air supply channels comprise a main air supply channel positioned in an area above the centrifugal fan and a directional air supply channel positioned in an area below the centrifugal fan; the first air curtain air duct and the main air supply air duct are separated by a foam partition plate, and the directional air supply air duct is communicated with the storage room.
10. The refrigerator according to claim 8, wherein: the first foam piece and the second foam piece are connected through a guide foam piece; and a guide air duct communicated with the first air curtain air duct and the second air curtain air duct is arranged on the guide foam piece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010230609.3A CN113446778A (en) | 2020-03-27 | 2020-03-27 | Refrigerator with a door |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010230609.3A CN113446778A (en) | 2020-03-27 | 2020-03-27 | Refrigerator with a door |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113446778A true CN113446778A (en) | 2021-09-28 |
Family
ID=77807864
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010230609.3A Pending CN113446778A (en) | 2020-03-27 | 2020-03-27 | Refrigerator with a door |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113446778A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114322405A (en) * | 2021-12-30 | 2022-04-12 | 澳柯玛股份有限公司 | Forced air cooling wind channel subassembly and forced air cooling freezer |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1174318A (en) * | 1996-06-12 | 1998-02-25 | 三星电子株式会社 | refrigerator |
| JP2004278878A (en) * | 2003-03-14 | 2004-10-07 | Fujitsu General Ltd | Refrigerator |
| CN104896829A (en) * | 2015-05-26 | 2015-09-09 | 遵义市凤华电器有限责任公司 | Refrigerating chamber of refrigerator |
| CN106196838A (en) * | 2015-10-29 | 2016-12-07 | 青岛海尔股份有限公司 | Branch air-supply arrangement and there is the refrigerator of this branch air-supply arrangement |
| CN206875795U (en) * | 2017-07-03 | 2018-01-12 | 宣城市艺雪制冷设备有限公司 | A kind of vertical refrigerated display case with evaporation humidification air channel |
| CN107621119A (en) * | 2017-10-16 | 2018-01-23 | 合肥华凌股份有限公司 | Throttle setting and there is its refrigerator |
| CN207123034U (en) * | 2017-06-29 | 2018-03-20 | 上海君贝能源科技有限公司 | Dry air curtain obstructs evaporimeter frosting cold store energy saving facility |
-
2020
- 2020-03-27 CN CN202010230609.3A patent/CN113446778A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1174318A (en) * | 1996-06-12 | 1998-02-25 | 三星电子株式会社 | refrigerator |
| JP2004278878A (en) * | 2003-03-14 | 2004-10-07 | Fujitsu General Ltd | Refrigerator |
| CN104896829A (en) * | 2015-05-26 | 2015-09-09 | 遵义市凤华电器有限责任公司 | Refrigerating chamber of refrigerator |
| CN106196838A (en) * | 2015-10-29 | 2016-12-07 | 青岛海尔股份有限公司 | Branch air-supply arrangement and there is the refrigerator of this branch air-supply arrangement |
| CN207123034U (en) * | 2017-06-29 | 2018-03-20 | 上海君贝能源科技有限公司 | Dry air curtain obstructs evaporimeter frosting cold store energy saving facility |
| CN206875795U (en) * | 2017-07-03 | 2018-01-12 | 宣城市艺雪制冷设备有限公司 | A kind of vertical refrigerated display case with evaporation humidification air channel |
| CN107621119A (en) * | 2017-10-16 | 2018-01-23 | 合肥华凌股份有限公司 | Throttle setting and there is its refrigerator |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114322405A (en) * | 2021-12-30 | 2022-04-12 | 澳柯玛股份有限公司 | Forced air cooling wind channel subassembly and forced air cooling freezer |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101082460B (en) | Three doors refrigerator of evaporator | |
| KR102627719B1 (en) | Refrigerator | |
| US20180010840A1 (en) | Refrigerator | |
| CN101086407B (en) | Circulated air channel of three-door refrigerator | |
| EP1642070B1 (en) | Refrigerator | |
| WO2018113712A1 (en) | Air flow adjustment device of refrigerator | |
| KR20150027979A (en) | Refrigerator | |
| CN113446778A (en) | Refrigerator with a door | |
| CN106895639B (en) | Multi-temperature-zone air-cooled refrigeration equipment | |
| CN113494808B (en) | Refrigerator with a door | |
| CN113494809B (en) | Refrigerator with a door | |
| WO2020160697A1 (en) | Refrigerator appliance with direct-cooled in-door chamber | |
| CN210832684U (en) | Air-cooled refrigerator | |
| CN113945045B (en) | Refrigerator with a door | |
| CN109373673B (en) | refrigerator | |
| CN214371196U (en) | Refrigerator with a door | |
| CN216481803U (en) | Refrigerator | |
| CN114719531A (en) | Refrigerator with a door | |
| CN114719533A (en) | Refrigerator with a door | |
| CN112082303B (en) | Refrigerating equipment | |
| CN222560356U (en) | refrigerator | |
| CN218495474U (en) | Refrigerator | |
| CN219199641U (en) | Air-cooled refrigerator | |
| CN218238000U (en) | Refrigerator cold storage air duct and refrigerator | |
| CN216522589U (en) | Refrigerator with a door |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210928 |