CN113465255B - Air-cooled refrigerator - Google Patents
Air-cooled refrigerator Download PDFInfo
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- CN113465255B CN113465255B CN202110660542.1A CN202110660542A CN113465255B CN 113465255 B CN113465255 B CN 113465255B CN 202110660542 A CN202110660542 A CN 202110660542A CN 113465255 B CN113465255 B CN 113465255B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D11/00—Self-contained movable devices, e.g. domestic refrigerators
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
- F25D17/04—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
- F25D17/06—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation
- F25D17/062—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation in household refrigerators
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- 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
- F25D17/067—Evaporator fan units
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
- F25D17/04—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
- F25D17/06—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation
- F25D17/08—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 using ducts
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D21/00—Defrosting; Preventing frosting; Removing condensed or defrost water
- F25D21/06—Removing frost
- F25D21/08—Removing frost by electric heating
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D23/00—General constructional features
- F25D23/006—General constructional features for mounting refrigerating machinery components
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D29/00—Arrangement or mounting of control or safety devices
- F25D29/003—Arrangement or mounting of control or safety devices for movable devices
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D29/00—Arrangement or mounting of control or safety devices
- F25D29/005—Mounting of control devices
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D2317/00—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass
- F25D2317/06—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
- F25D2317/067—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 air ducts
Abstract
The invention provides an air-cooled refrigerator which comprises a refrigerator body, wherein a refrigerating chamber is limited in the refrigerator body and is arranged in a forward opening manner; the air supply mechanism is arranged in the refrigerating chamber and divides the refrigerating chamber into an evaporator cavity and a storage chamber positioned in front of the evaporator cavity along the front-back direction of the box body, and the bottom of the refrigerating chamber is provided with an air return port communicated with the storage chamber and the evaporator cavity; the evaporimeter sets up in the evaporimeter intracavity, the evaporimeter is the tube sheet formula evaporimeter, and includes evaporating pipe and evaporating plate, the coil pipe form that the evaporating pipe is parallel arrangement bonds and is in on the evaporating plate and including the upper end evaporating pipe and the lower extreme evaporating pipe that are connected, in the direction of height, the pipeline density of lower extreme evaporating pipe is greater than the pipeline density of upper end evaporating pipe. So set up, can improve heat exchange efficiency and reduce the energy consumption.
Description
Technical Field
The invention relates to the technical field of household appliances, in particular to an air-cooled refrigerator.
Background
At present, insulation can that air-cooled refrigerator (such as refrigerator, freezer etc.) was used usually includes the box and the door body, a refrigeration room is injectd to the box to have and set up in the air supply mechanism in refrigeration room, air supply mechanism separates into the evaporimeter chamber and is located the storing room in front of the evaporimeter chamber with refrigeration room along the box fore-and-aft direction, refrigeration room bottom is equipped with the intercommunication the return air inlet in storing room and evaporimeter chamber. However, the existing evaporator arranged in the evaporator cavity is a tube-plate evaporator, and includes an evaporating tube and an evaporating plate, wherein the evaporating tube is adhered to the evaporating plate in a parallel-arranged coil shape, and in the height direction, the density of the evaporating tube is approximately the same, which is not beneficial to the heat exchange of the return air.
In view of the above, there is a need for an improved air-cooled refrigerator to solve the above problems.
Disclosure of Invention
The invention aims to provide an air-cooled refrigerator.
To achieve the above object, the present invention provides an air-cooled refrigerator, comprising:
a control mechanism; the refrigerator comprises a box body, a door and a door, wherein the box body is limited with a refrigerating chamber which is arranged in a forward opening manner; the air supply mechanism is arranged in the refrigeration chamber and divides the refrigeration chamber into an evaporator cavity and a storage chamber positioned in front of the evaporator cavity along the front-back direction of the box body, the air supply mechanism comprises an air channel structure with a sealed bottom and a fan arranged in the air channel structure, the air channel structure is provided with a plurality of air supply channels and a fan cavity which accommodates the fan and is communicated with the evaporator cavity, one end of each air supply channel is communicated with the fan cavity along the height direction of the box body, the other end of each air supply channel is communicated with the storage chamber in the front-back direction through an air outlet, and the bottom of the refrigeration chamber is provided with a return air inlet which is communicated with the storage chamber and the evaporator cavity;
the air duct structure comprises a front cover plate, an air duct body and a rear cover plate which are sequentially arranged along the front-rear direction, the air outlet is arranged on the front cover plate and is communicated with the air supply channel, the air supply air duct and the fan cavity are arranged on the air duct body, the rear cover plate is provided with through holes which are respectively communicated with the fan cavity and the evaporator cavity, the air supply air duct comprises a first air supply duct, a second air supply duct and a third air supply duct which are independently arranged along the width direction of the refrigerator, the third air supply duct is positioned between the first air supply duct and the second air supply duct, air outlets corresponding to the first air supply duct, the second air supply duct and the third air supply duct are vertically arranged along the height direction and are arranged corresponding to each object placing space, and the air outlet corresponding to the second air supply duct is positioned between the air outlets corresponding to the first air supply duct and the third air supply duct;
the evaporator is arranged in the evaporator cavity, the fan introduces air passing through the evaporator into the air supply duct and sends the air into the storage chamber through the air outlet, the cold air passing through the storage chamber flows into the evaporator cavity from the air return inlet, the evaporator is a tube-plate evaporator and comprises evaporation tubes and evaporation plates, the evaporation tubes are adhered to the evaporation plates in a coil shape in parallel arrangement and comprise upper-end evaporation tubes and lower-end evaporation tubes which are connected, and the pipeline density of the lower-end evaporation tubes is greater than that of the upper-end evaporation tubes in the height direction;
the air-cooled refrigerator also comprises two defrosting sensors respectively corresponding to the upper end evaporating pipe and the lower end evaporating pipe, and a first heating wire and a second heating wire which are respectively used for supplying heat to the upper end evaporating pipe and the lower end evaporating pipe, wherein the defrosting sensors, the first heating wire and the second heating wire are electrically connected with a control mechanism, and the rated power of the first heating wire is smaller than that of the second heating wire;
the box still has the supporter of separating into three object space along the direction of height with the storing room and corresponds the temperature-sensing element who sets up at every object space, the air outlet corresponds three object space, temperature-sensing element and control mechanism electric connection to control the switch of the corresponding air door of first air supply duct, second air supply duct and third air supply duct.
As a further improvement of the invention, the air outlet is formed by an array consisting of a plurality of rhombic through holes.
As a further improvement of the invention, the bottom of the front cover plate is provided with a pair of gaps, and the bottom surfaces of the air duct body and the rear cover plate are not lower than the inner walls of the gaps, so that the air return opening is formed at the bottom.
As a further improvement of the present invention, the air outlets corresponding to the second air supply duct are arranged in a pair along the width direction and are located at two sides of the third air supply duct, and the second air supply duct includes a first air duct branch communicating the fan cavity with the air outlet at one side and a second air duct branch communicating the first air duct branch with the air outlet at the other side.
As a further improvement of the present invention, the air outlets corresponding to the third air supply ducts are provided as a pair arranged along the width direction, and the third air supply ducts have through air ducts located at the bottom of the second air duct branch, and the second air duct branch and the through air ducts are independently provided.
As a further improvement of the present invention, the air supply mechanism further includes a mounting box enclosing and fixing the fan therein, the mounting box is disposed in the fan cavity and has an air inlet communicated with the evaporator cavity and air supply outlets respectively communicated with the first, second, and third air supply ducts in a one-to-one correspondence, the mounting box further has an air door correspondingly blocking the air supply outlets, and the air door is electrically connected with the control mechanism and is controlled to be opened or closed.
The evaporation pipeline of the air-cooled refrigerator evaporator is arranged in the height direction, and the pipeline density of the lower end evaporation pipe is greater than that of the upper end evaporation pipe, so that the heat exchange efficiency can be improved, and the energy consumption can be reduced.
Drawings
FIG. 1 is a perspective assembly view of a part of the structure of an air-cooled refrigerator according to the present invention.
Fig. 2 is a perspective assembly view of fig. 1 viewed from another direction.
Fig. 3 is a partially exploded perspective view of fig. 1.
Fig. 4 is a partially exploded perspective view of fig. 3 viewed from another direction.
Fig. 5 is a perspective exploded view of the air duct structure of the air-cooled refrigerator of the present invention.
Fig. 6 is an exploded perspective view of fig. 5 viewed from another direction.
FIG. 7 is a perspective view of the air chute body.
Fig. 8 is a schematic perspective view of a fan and a mounting box of the air-cooled refrigerator of the present invention.
Fig. 9 is a perspective view of fig. 7 viewed from another direction.
FIG. 10 is a sectional view of the structure of the air-cooled refrigerator of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the accompanying drawings and specific embodiments.
Hereinafter, a specific embodiment of the air-cooled refrigerator according to the present invention will be described with reference to fig. 1 to 10. Referring to fig. 1 to 9, the air-cooled refrigerator has a cabinet 1 with one side open, and the cabinet 1 defines a cooling compartment which is open to the front. For convenience of description, a front-rear direction, a width direction perpendicular to the front-rear direction, and a height direction perpendicular to the front-rear direction and the width direction of the cabinet are defined.
The air-cooled refrigerator also comprises an air supply mechanism 2 and an evaporator 3 which are arranged in the refrigerating chamber. The air supply mechanism 2 divides the refrigerating chamber into an evaporator cavity 11 for accommodating the evaporator 3 and a storage chamber 12 positioned in front of the evaporator cavity 11 along the front-back direction. The air supply mechanism 2 comprises an air duct structure 21 with a sealed bottom and a fan 22 arranged in the air duct structure 21. The air duct structure 21 is provided with a plurality of air supply air ducts 211 and a fan cavity 212 which accommodates the fan 22 and is communicated with the evaporator cavity 11. One end of the air supply duct 211 is communicated with the fan cavity 212 along the height direction, the other end is communicated with the storage chamber 12 in the front-rear direction through an air outlet 23, and the bottom of the refrigeration chamber is provided with an air return opening 20 for communicating the storage chamber 12 with the evaporator cavity 11; thus, the fan 21 introduces the air passing through the evaporator 3 into the air supply duct 211, and sends the air into the storage chamber 12 through the air outlet 23, and the cool air passing through the storage chamber 12 flows into the evaporator cavity 11 from the air return opening 24.
In the present invention, the air duct structure 21 includes a front cover plate 24, an air duct body 25 and a rear cover plate 26, which are sequentially arranged along the front-rear direction. The air outlet 23 is arranged on the front cover plate 24 and communicated with the air supply channel 211, the air supply channel 211 and the fan cavity 212 are arranged on the air channel body 25, and the rear cover plate 26 is provided with a through hole 261 respectively communicated with the fan cavity 212 and the evaporator cavity 11.
In a preferred embodiment of the present invention, the air outlet 23 is formed by an array of a plurality of diamond-shaped through holes to realize breeze delivery. The bottom of the front cover plate 24 is provided with a pair of gaps 241, and the bottom surfaces of the air duct body 25 and the rear cover plate 26 are not lower than the inner walls of the gaps 241, so that the air return opening 20 is formed at the bottom. The air duct body 25 has a thickness in the front-rear direction, and the front cover plate 24 has a positioning wall 242 for attaching and holding the peripheral side wall of the air duct body 25, so that the air duct structure 21 is stably held.
Referring to fig. 5 to 7, in the present invention, the air duct 211 includes a first air duct 213, a second air duct 214, and a third air duct 215 independently arranged in a width direction, and the third air duct 215 is located between the first air duct 213 and the second air duct 214. The air outlets 23 corresponding to the first air duct 213, the second air duct 214, and the third air duct 215 are vertically arranged along the height direction, and the air outlet 23 corresponding to the second air duct 214 is located between the air outlets 23 corresponding to the first air duct 213 and the third air duct 215.
The air outlets 23 corresponding to the second air supply duct 214 are arranged in a pair along the width direction and are located at two sides of the third air supply duct 215, and the second air supply duct 214 includes a first air duct branch 216 communicating the fan cavity 212 and the air outlet 23 at one side and a second air duct branch 217 communicating the first air duct branch 216 and the air outlet 23 at the other side. Since the pair of air blowing ports 23 corresponding to the second air blowing duct 214 are disposed on both sides of the third air blowing duct 215, the second air blowing duct 214 and the third air blowing duct 215 have a crossing portion, and in order not to affect the independent control and independent air blowing of the second air blowing duct 214 and the third air blowing duct 215, the second air duct branch 217 includes a hollow duct 218 disposed on the crossing portion with the third air blowing duct 215, and both ends of the hollow duct 218 penetrating in the width direction are respectively connected to the two air blowing ports 23 corresponding to the second air blowing duct 214, so that when the second air blowing duct 214 blows air, cold air is delivered to the air outlet 23 on the corresponding side through the first air duct branch 216, and is delivered to the air outlet 23 on the other side through a pipeline laid by the hollow duct 218, so as to achieve the cooling by the two air outlets 23 matching with each other.
The air outlets 23 corresponding to the third air supplying duct 215 are also provided as a pair arranged along the width direction, and the third air supplying duct 215 has a through air duct 219 located at the bottom of the second air duct branch 217, and the second air duct branch 217 and the through air duct 219 are independently provided. Specifically, the hollow duct 218 blocks the communication between the second air duct 214 and the third air duct 215, and the size of the hollow duct 218 is smaller than the size of the third air duct 215 in the front-rear direction, so that the through air duct 219 is formed at the bottom of the hollow duct 218 to smoothly blow air from the third air duct 215 to the air outlet 23.
In the present invention, each of the first air duct 213, the second air duct 214, and the third air duct 215 includes the main duct 26 provided on the rear surface of the duct body 25 and extending in the height direction, and the duct hole 27 penetrating the duct body 25 in the front-rear direction. The main air duct 26 is of a structure gradually widened from top to bottom, and the air duct hole is communicated with the main air duct 26 and the air outlet 23.
Referring to fig. 3, 7 and 8, the air supply mechanism 2 further includes a mounting box 28 enclosing and fixing the fan 21 therein. The mounting box 28 is disposed in the blower cavity 212 and has an air inlet 281 communicated with the evaporator cavity 11, an air outlet 282 communicated with the first, second and third air supply ducts 213, 214 and 215 in a one-to-one correspondence manner, and a damper for correspondingly blocking the air outlet 282. The air-cooled refrigerator further comprises a control mechanism for controlling the operation of the refrigerator, and the air door is electrically connected with the control mechanism and is controlled to be opened or closed, so that the air supply of the first, second and third air supply channels 213, 214 and 215 is accurately controlled.
The box body 1 further has a rack 13 for dividing the storage chamber 12 into three storage spaces 131 along the height direction and a temperature sensing element 132 correspondingly disposed in each storage space 131, the air outlet 23 corresponds to the three storage spaces 131, and the temperature sensing element 132 is electrically connected to a control mechanism to control the opening and closing of the corresponding air doors of the first air supply duct 213, the second air supply duct 214 and the third air supply duct 215. The temperature of the corresponding storage space 131 is sensed by the temperature sensing element 132, so that the control mechanism controls the switch of the corresponding air door, and accurate temperature control is realized.
In the present invention, the evaporator 3 is a tube-plate evaporator, and includes an evaporation tube 31 and an evaporation plate 32, the evaporation tube 31 is adhered to the evaporation plate 32 in a parallel-arranged coil shape and includes an upper evaporation tube 311 and a lower evaporation tube 312 connected to each other, and in the height direction, the density of the tubes of the lower evaporation tube 312 is greater than the density of the tubes of the upper evaporation tube 311. The air-cooled refrigerator further comprises two defrosting sensors 4 corresponding to the upper end evaporating pipe 311 and the lower end evaporating pipe 312 respectively, and a first heating wire 51 and a second heating wire 52 which are used for supplying heat to the upper end evaporating pipe 311 and the lower end evaporating pipe 312 respectively, wherein the defrosting sensors 4, the first heating wire 51 and the second heating wire 52 are electrically connected with a control mechanism, and the rated power of the first heating wire 51 is smaller than that of the second heating wire 52.
The design of the evaporator 3 with the dense lower part and the sparse upper part enables hot air entering the evaporator cavity 11 through the air return opening 20 to firstly realize the first sufficient heat exchange through the densely arranged lower end evaporation tubes 312 and then realize the secondary heat exchange through the upper end evaporation tubes 311, so that the optimal heat exchange is realized, the energy consumption is reduced, and the efficiency is improved. The temperature of the gas firstly returning to the evaporator 3 is high, the humidity is high, and much frost is formed at the lower end of the evaporator 3 after heat exchange, so that the second heating wire 52 needs to be set to be higher rated power, the frost is less formed at the upper end of the evaporator 3, the rated power of the first heating wire 51 can be set to be smaller, the start and stop of the first heating wire 51 and the second heating wire 52 are controlled through the frost sensor 4, the sectional control is realized, and the energy consumption is saved.
Although the present invention has been described in detail with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the spirit and scope of the present invention.
Claims (6)
1. An air-cooled refrigerator, comprising:
a control mechanism;
the refrigerator comprises a box body, a door and a door, wherein the box body is limited with a refrigerating chamber which is arranged in a forward opening manner;
the air supply mechanism is arranged in the refrigeration chamber and divides the refrigeration chamber into an evaporator cavity and a storage chamber positioned in front of the evaporator cavity along the front and back directions of the box body, the air supply mechanism comprises an air duct structure with a sealed bottom and a fan arranged in the air duct structure, the air duct structure is provided with a plurality of air supply air ducts and a fan cavity which accommodates the fan and is communicated with the evaporator cavity, one end of each air supply air duct is communicated with the fan cavity along the height direction of the box body, the other end of each air supply air duct is communicated with the storage chamber in the front and back directions through an air outlet, and the bottom of the refrigeration chamber is provided with an air return opening which is communicated with the storage chamber and the evaporator cavity;
the air duct structure comprises a front cover plate, an air duct body and a rear cover plate which are sequentially arranged along the front-rear direction, the air outlet is arranged on the front cover plate and is communicated with the air supply channel, the air supply air duct and the fan cavity are arranged on the air duct body, the rear cover plate is provided with a through hole which is respectively communicated with the fan cavity and the evaporator cavity, the air supply air duct comprises a first air supply duct, a second air supply duct and a third air supply duct which are independently arranged along the width direction of the refrigerator, the third air supply duct is positioned between the first air supply duct and the second air supply duct, air outlets corresponding to the first air supply duct, the second air supply duct and the third air supply duct are vertically arranged along the height direction and are arranged corresponding to each object placing space, and the air outlet corresponding to the second air supply duct is positioned between the air outlets corresponding to the first air supply duct and the third air supply duct;
the evaporator is arranged in the evaporator cavity, the fan introduces air passing through the evaporator into the air supply duct and sends the air into the storage chamber through the air outlet, the cold air passing through the storage chamber flows into the evaporator cavity from the air return inlet, the evaporator is a tube-plate evaporator and comprises evaporation tubes and evaporation plates, the evaporation tubes are adhered to the evaporation plates in a coil shape in parallel arrangement and comprise upper-end evaporation tubes and lower-end evaporation tubes which are connected, and the pipeline density of the lower-end evaporation tubes is greater than that of the upper-end evaporation tubes in the height direction;
the air-cooled refrigerator also comprises two defrosting sensors respectively corresponding to the upper end evaporating pipe and the lower end evaporating pipe, and a first heating wire and a second heating wire which are respectively used for supplying heat to the upper end evaporating pipe and the lower end evaporating pipe, wherein the defrosting sensors, the first heating wire and the second heating wire are electrically connected with a control mechanism, and the rated power of the first heating wire is smaller than that of the second heating wire;
the box still has the supporter of separating into three object space along the direction of height with the storing room and corresponds the temperature-sensing element who sets up at every object space, the air outlet corresponds three object space, temperature-sensing element and control mechanism electric connection to control the switch of the corresponding air door of first air supply duct, second air supply duct and third air supply duct.
2. The air-cooled refrigerator of claim 1, wherein: the air outlet is formed by an array formed by a plurality of rhombic through holes.
3. The air-cooled refrigerator of claim 1, wherein: the bottom of the front cover plate is provided with a pair of gaps, and the bottom surfaces of the air duct body and the rear cover plate are not lower than the inner walls of the gaps, so that the air return opening is formed at the bottom.
4. The air-cooled refrigerator of claim 1, wherein: the air outlets corresponding to the second air supply ducts are arranged in a pair along the width direction and are positioned on two sides of the third air supply duct, and each second air supply duct comprises a first air duct branch communicated with the fan cavity and the air outlet on one side and a second air duct branch communicated with the air outlet on the first air duct branch and the air outlet on the other side.
5. The air-cooled refrigerator of claim 4, wherein: the air outlets corresponding to the third air supply ducts are arranged in a pair along the width direction, the third air supply ducts are provided with through air ducts positioned at the bottoms of the second air duct branches, and the second air duct branches and the through air ducts are independently arranged.
6. The air-cooled refrigerator of claim 1, wherein: the air supply mechanism further comprises a mounting box which is used for surrounding and fixing the fan inside, the mounting box is arranged in the fan cavity and is provided with an air inlet communicated with the evaporator cavity and air supply outlets communicated with the first air supply channel, the second air supply channel and the third air supply channel in a one-to-one correspondence manner, the mounting box is further provided with air doors which are correspondingly plugged, and the air doors are electrically connected with the control mechanism and are controlled to be opened or closed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110660542.1A CN113465255B (en) | 2018-12-05 | 2018-12-05 | Air-cooled refrigerator |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811479462.0A CN109612186B (en) | 2018-12-05 | 2018-12-05 | Air-cooled refrigerator |
| CN202110660542.1A CN113465255B (en) | 2018-12-05 | 2018-12-05 | Air-cooled refrigerator |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811479462.0A Division CN109612186B (en) | 2018-12-05 | 2018-12-05 | Air-cooled refrigerator |
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| Publication Number | Publication Date |
|---|---|
| CN113465255A CN113465255A (en) | 2021-10-01 |
| CN113465255B true CN113465255B (en) | 2022-09-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110660542.1A Active CN113465255B (en) | 2018-12-05 | 2018-12-05 | Air-cooled refrigerator |
| CN201811479462.0A Active CN109612186B (en) | 2018-12-05 | 2018-12-05 | Air-cooled refrigerator |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811479462.0A Active CN109612186B (en) | 2018-12-05 | 2018-12-05 | Air-cooled refrigerator |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110207444B (en) * | 2019-07-11 | 2024-01-30 | 长虹美菱股份有限公司 | Refrigerator fresh-keeping room based on cross arrangement |
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Also Published As
| Publication number | Publication date |
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| CN109612186A (en) | 2019-04-12 |
| CN109612186B (en) | 2021-07-23 |
| CN113465255A (en) | 2021-10-01 |
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