CN101086407A - Circulated air channel of three-door refrigerator - Google Patents
Circulated air channel of three-door refrigerator Download PDFInfo
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- CN101086407A CN101086407A CN 200610087412 CN200610087412A CN101086407A CN 101086407 A CN101086407 A CN 101086407A CN 200610087412 CN200610087412 CN 200610087412 CN 200610087412 A CN200610087412 A CN 200610087412A CN 101086407 A CN101086407 A CN 101086407A
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- 230000008014 freezing Effects 0.000 claims description 71
- 238000007710 freezing Methods 0.000 claims description 71
- 238000005057 refrigeration Methods 0.000 claims description 9
- 238000005192 partition Methods 0.000 claims description 8
- 230000005540 biological transmission Effects 0.000 claims description 5
- 230000003044 adaptive effect Effects 0.000 claims description 2
- 238000006243 chemical reaction Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 abstract description 3
- 230000008569 process Effects 0.000 abstract description 3
- 238000003860 storage Methods 0.000 description 11
- 230000008859 change Effects 0.000 description 6
- 230000001276 controlling effect Effects 0.000 description 6
- 239000003507 refrigerant Substances 0.000 description 6
- 235000013305 food Nutrition 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 235000013399 edible fruits Nutrition 0.000 description 2
- 238000005187 foaming Methods 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 235000013311 vegetables Nutrition 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 235000013611 frozen food Nutrition 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
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- Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)
Abstract
The invention discloses a circulation air channel of a three-door refrigerator, which comprises the following parts: a casing, an evaporator, a split chilling chamber and refrigerating chamber on the top of the casing, a temperature-change chamber on the bottom of the casing, wherein the temperature-change chamber is an integral big drawer type structure, and the chilling chamber is only equipped with a evaporator, the chilling work, the refrigerating work, the temperature-change work use the evaporator commonly, the chilling chamber, the refrigerating chamber and the temperature-change chamber are equipped with the circulation air channel adjusted the temperature with the same evaporator. The invention saves a temperature-change evaporator by adjusting the needed temperature of the intake air quantity in every chamber space with the circulation air channel, which preferably achieves temperature-change function lonely because the temperature chamber is a lone chamber, achieves the big chilling and refrigerating conversion, meets the users' needs, provides the simple process, the convenient repairing.
Description
Technical Field
The invention relates to a refrigerator, in particular to a circulating air duct of an air-cooled three-door refrigerator.
Background
Common refrigerating and freezing boxes are widely referred to as double-door double-temperature, three-door three-temperature and cabinet type multi-door refrigerators. The refrigerator is provided with an independent outer door of the freezing chamber, the volume of the freezing chamber is larger and is about 1/4-1/2 of the total volume, and more frozen food can be stored. Some refrigerating compartments are further provided with compartments and doors to be separately stored according to different storage temperatures of foods.
The flow direction of refrigerant is controlled by electromagnetic valve in refrigeration system such as refrigerator, and refrigerant is supplied to each cold storage (freezing) chamber to cool each space of refrigerator to required temperature. With the improvement of living standard of people, people put forward higher requirements on the refrigerator, for example, in order to enable the refrigerator to be more suitable for the refrigeration of various foods, an ice-cold room (a fruit room and a vegetable room) is additionally arranged on the refrigerator and used for refrigerating foods with higher refrigeration temperature such as fruits, vegetables and the like, so that a three-temperature three-control three-door refrigerator with a compressor for respectively supplying refrigerants appears, and in order to realize the respective refrigeration of three chambers, a one-inlet three-outlet electromagnetic valve is adopted to respectively control the flow directions of the refrigerants. Because the increase of control channels is difficult to realize by a single reciprocating valve core, the existing refrigerator mostly adopts a rotary valve form by using a one-inlet three-outlet electromagnetic valve, the structure of the rotary valve is that three outlets are arranged on the wall of the valve, a stepping motor controls the rotation of the valve core, when the valve core rotates to a certain angle, one outlet pipe is communicated with an inlet pipe, and the other two are closed, thereby achieving the purpose of respectively controlling three channels connected with three chambers. However, the rotary valve has a complex structure and extremely high requirements on machining precision, not only is the manufacturing process complex, but also the domestic machining process is difficult to achieve at present, even if the rotary valve is manufactured, the internal leakage requirement of the valve is difficult to meet, and the requirements on the control precision of the rotation angle of the valve core are also extremely high, and the control circuit is complex, so the manufacturing cost is high.
To address this problem, chinese patent application No. 02286473.3 discloses an improved one-inlet three-outlet solenoid valve for refrigerators, which is characterized in that two reciprocating two-position three-way solenoid valves are connected with the inlet of one valve according to any outlet of the other valve and are fixedly connected into a whole by a rigid connecting plate. The two-position three-way valve can realize the function of one inlet and three outlet valves, can replace a rotary one inlet and three outlet valve with complex structure and control, is used for a three-temperature three-control three-door refrigerator, has simple structure and control, easy processing and manufacturing, small inner leakage and reliable use, and finds a simple and effective refrigerant control electromagnetic valve for supplying refrigerant of the three-temperature three-control three-door refrigerator to a compressor.
The prior art does not have a precedent that one evaporator is used for cold storage, freezing and temperature changing to form a circulating air channel at the same time, and the defects are required to be improved.
The common side-by-side combination refrigerator has narrow refrigerating chamber, is not suitable for storing large trays and cannot meet the requirement of American users on large and wide refrigerating chambers.
The common side-by-side combination refrigerator generally has no temperature change chamber, even if the common side-by-side combination refrigerator has the temperature change chamber, the common side-by-side combination refrigerator is placed at the lowest part of a refrigerating chamber, the temperature change function from refrigerating to soft freezing to freezing cannot be realized, the common side-by-side combination refrigerator can only be adjusted between the refrigerating and the soft freezing, the lowest temperature is about-8 ℃, and the requirements of users, particularly American users, cannot be met.
The present invention has been made in view of the above problems.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide an improved circulating air duct of a three-door refrigerator.
In order to solve the technical problems, the invention adopts the technical scheme that: the utility model provides a circulation wind channel of three-door refrigerator, includes that the upper portion of box, box is equipped with run-to-run freezer and walk-in, and the lower part of box is equipped with the temperature-changing room of whole drawer type to only set up an evaporimeter, its characterized in that in the freezer: and circulating air ducts for adjusting the indoor temperatures of the freezing chamber, the refrigerating chamber and the temperature-changing chamber by using the same evaporator are arranged among the freezing chamber, the refrigerating chamber and the temperature-changing chamber.
The circulating air duct is provided with a fan shared by the freezing chamber, the refrigerating chamber and the temperature-changing chamber, and the fan is arranged above the evaporator in the freezing chamber.
And a return air duct and a return air inlet of the temperature changing chamber are arranged between the bottom wall of the freezing chamber and the top wall of the temperature changing chamber.
The freezing chamber is also provided with an air duct, the upper end of the air duct is connected with an air receiving hopper corresponding to the fan, the lower end of the air duct penetrates through the bottom wall and is communicated with the temperature-changing chamber through a temperature-changing air inlet and a temperature-changing air door which are arranged at the upper part of the temperature-changing chamber, and the upper part of the temperature-changing chamber is also provided with a temperature-changing air outlet which is communicated with the air return duct and the air return inlet to form a circulating air duct for adjusting the temperature of.
And a partition plate is arranged between the freezing chamber and the refrigerating chamber, a refrigerating air inlet door which is led into the refrigerating chamber from the freezing chamber is arranged at the upper part of the partition plate and corresponds to the fan, and a refrigerating air return opening which is communicated with the refrigerating chamber and the freezing chamber is arranged at the lower part of the partition plate, so that a circulating air duct for adjusting the refrigerating chamber is formed.
The refrigerating chamber is also provided with a fan cover plate which is adaptive to the fan, the upper part of the fan cover plate is provided with an upper opening for exhausting air, and the lower part of the fan cover plate is provided with a lower opening for returning air, thereby forming a circulating air duct of the refrigerating chamber.
The refrigerating chamber and the temperature-changing chamber are respectively provided with a first temperature sensor and a second temperature sensor which are connected with the control part of the refrigerator and can measure the temperature in the refrigerating chamber and the temperature-changing chamber.
The variable temperature air door and the cold storage air inlet door are identical in structure and comprise an air door seat and a rotatable air baffle piece arranged on the air door seat, and one end of the rotatable air baffle piece is provided with a transmission part connected with the control part.
The air door seat is provided with an air port which is adapted to the rotatable wind shielding sheet.
The section of the air duct is round, square or rectangular.
After the technical scheme is adopted, compared with the prior art, the invention has the following beneficial effects.
The invention relates to a circulating air duct structure of a three-door refrigerator, wherein a freezing chamber and a refrigerating chamber which are split are arranged at the upper part of a refrigerator body, a temperature changing chamber is arranged at the lower part of the refrigerator body, and only one evaporator is arranged in the freezing chamber. Therefore, the evaporator is commonly used for controlling the temperature in the freezing, refrigerating and temperature changing work, and the circulating air duct formed by the fan, the air duct and the air door can achieve the required temperature by adjusting the air intake of each indoor space.
The circulating air duct of the three-door refrigerator is divided into the upper part which is a refrigerating chamber and a freezing chamber respectively, and the lower part is a drawer type temperature-changing chamber, thus solving the problem that the common side-by-side combination refrigerator does not have the temperature-changing chamber, or even if the temperature-changing refrigerator has the temperature-changing function, the temperature-changing refrigerator is placed at the lowest part of the refrigerating chamber and cannot realize the temperature-changing function from the refrigerating chamber to the soft freezing chamber to the freezing chamber, the common side-by-side combination refrigerator can only be adjusted between the refrigerating chamber and the soft freezing chamber, the lowest temperature is about minus 8 ℃, because the soft freezing chamber is released from the refrigerating chamber to form an independent space, the temperature-changing function is completely and independently realized, the temperature of the drawer type temperature-changing chamber can be continuously adjusted from minus 18 ℃ to 5 ℃, and the indoor temperature can be known through a second temperature sensor arranged in the temperature-changing chamber, then the air inlet amount can be controlled by adjusting the size of the variable temperature air door, and the aim of controlling the temperature of the variable temperature chamber can be achieved. Meanwhile, the temperature-changing chamber can be continuously adjusted from cold storage to soft freezing and then to freezing, so that the conversion of large cold storage or large freezing can be realized, for example, the large cold storage in summer and the large freezing in winter.
The circulating air duct of the three-door refrigerator is designed to be the split-door at the upper part and the integral large drawer at the lower part, so that the problem that a refrigerating chamber of a common split-door refrigerator is narrow and is not suitable for storing large trays can be effectively solved, and the requirement of American users on the large and wide refrigerating chamber is met.
In addition, the air duct of the circulating air duct of the three-door refrigerator has the unique advantages that air is exhausted from the freezing chamber and enters the refrigerating chamber and the temperature changing chamber, the air duct is arranged outside a cavity formed by the inner container and the refrigerator body shell, the air duct is installed after foaming, the maintenance is convenient, and meanwhile, the process is simple. And because the temperature in the three chambers is regulated to use one evaporator, one evaporator of the temperature changing chamber can be saved.
The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.
Drawings
FIG. 1 is a schematic perspective view of a circulating air duct of a three-door refrigerator according to the present invention;
FIG. 2 is a schematic diagram of the air supply states of the freezing chamber and the refrigerating chamber of the circulating air duct of the three-door refrigerator according to the present invention;
FIG. 3 is a schematic longitudinal sectional view showing the air supply state of the temperature varying chamber of the circulation duct of the three-door refrigerator according to the present invention;
FIG. 4 is a front view of the circulating air duct of the three-door refrigerator of the present invention facing the user;
fig. 5 is a schematic view of the damper configuration illustrated by part number 10 in fig. 1 and part number 15 in fig. 2.
Detailed Description
As shown in fig. 1, the structure of the circulation air duct of the three-door refrigerator of the present invention comprises a box 50 and an evaporator 4, wherein the upper part of the box 50 is provided with a freezing chamber 17 and a refrigerating chamber 12 which are split, the lower part of the box 50 is provided with a temperature changing chamber 9, and only one evaporator 4 is arranged in the freezing chamber 17. The temperature-changing chamber 9 is an integral large drawer, namely a drawer-type temperature-changing chamber. That is, in the circulating duct of the whole three-door refrigerator, the freezing chamber 17, the refrigerating chamber 12 and the temperature-changing chamber 9 are operated together with the one evaporator 4, and the required temperature is achieved by adjusting the intake air amount of each refrigerating space. The most prominent characteristic is that a circulating air duct for adjusting the indoor temperature of the freezing chamber 17, the refrigerating chamber 12 and the temperature-changing chamber 9 by the refrigeration of the same evaporator 4 is arranged among the freezing chamber, the refrigerating chamber and the temperature-changing chamber.
As shown in fig. 1, 2 and 3, in order to send the cold air generated by the evaporator 4 in the freezing chamber 17 into the refrigerating chamber 12 and the temperature changing chamber 9, a set of air supply devices, i.e., a circulating air duct, is provided in the casing 50 of the circulating air duct of the three-door refrigerator. Wherein,
the circulating duct has a fan 1 common to the freezing chamber 17, the refrigerating chamber 12, and the temperature-changing chamber 9, and the fan 1 is provided above the evaporator 4 in the freezing chamber 17.
A return duct 6 and a return air inlet 5 of the variable temperature chamber 9 are provided between the bottom wall 7 of the freezing chamber 17 and the top wall of the variable temperature chamber 9 (see fig. 3).
An air duct 3 is further arranged in the freezing chamber 17, and the cross section of the air duct 3 is circular, square or rectangular. The upper end of the air duct 3 is connected with an air receiving hopper 2 corresponding to the fan 1, the lower end of the air duct 3 passes through the bottom wall 7, and is communicated with the temperature changing chamber 9 through a temperature changing air inlet 14 and a temperature changing air door 15 arranged at the upper part of the temperature changing chamber 9 (refer to fig. 1 and 2).
The upper part of the temperature-changing chamber 9 is also provided with a temperature-changing air outlet 8 communicated with the air return duct 6 and the air return opening 5, thereby forming a circulating air duct for adjusting the temperature of the temperature-changing chamber 9 (see fig. 2).
The circulating air duct of the three-door refrigerator of the invention is provided with a separation plate 11 between a freezing chamber 17 and a refrigerating chamber 12, the upper part of the separation plate 11 is provided with a refrigerating air inlet door 10 which leads the freezing chamber 17 into the refrigerating chamber 12, the refrigerating air inlet door 10 corresponds to a fan 1, and the lower part of the separation plate 11 is provided with a refrigerating air return opening 13 (refer to figure 3) which leads the refrigerating chamber 12 to be communicated with the freezing chamber 17. Thereby constituting a circulation duct of the refrigerating chamber 12 to perform a task of supplying cool air from the freezing chamber 17 to the refrigerating chamber 12.
The freezing chamber 17 is also provided with a fan cover plate 60 adapted to the fan 1, the upper part of the fan cover plate 60 is provided with an upper opening 16 for exhausting air, and the lower part of the fan cover plate 60 is provided with a lower opening 18 for returning air, so that a circulating air duct of the freezing chamber 17 is formed.
In order to know the temperatures in the refrigerating chamber 12 and the temperature-changing chamber 9, the present invention is provided with a first temperature sensor 25 and a second temperature sensor 26 (see fig. 4) which are connected to the refrigerator controller 22 and which can measure the temperatures in the refrigerating chamber 12 and the temperature-changing chamber 9, respectively, in the refrigerating chamber 12 and the temperature-changing chamber 9. However, the control unit 22 is not shown in fig. 4, and refer to the control unit 22 shown in fig. 5. The control part 22 controls the variable temperature air door 15 and the cold storage air inlet door 10, and the first temperature sensor 25 and the second temperature sensor 26, and is connected with the control panel on the door panel through the control circuit of the control part 22, so as to display and control the temperature of each greenhouse, and the details of the control part are omitted in the figure.
As shown in fig. 5, in the circulating air duct of the three-door refrigerator of the present invention, the temperature-changing damper 15 and the refrigerating inlet damper 10 have the same structure, and include a damper seat 20, and a rotatable wind-blocking sheet 21 disposed on the damper seat 20, wherein a transmission part 30 connected to a control part 22 is disposed at one end of the rotatable wind-blocking sheet 21. The air door seat 20 is provided with an air opening 31, and the air opening 31 is adapted to the rotatable wind-shielding sheet 21. The transmission part 30 is not shown in detail in the drawings, and may be driven directly by a motor or driven by a motor through a reduction gear set, wherein the motor is connected with the control part 22 through an electric wire. The transmission part 30 drives the wind shield 21 to rotate, and the size of the air inlet 31 on the air door seat 20 is adjusted and changed to control the size of the air inlet amount, so that the temperature in the refrigerating chamber 12 and the temperature changing chamber 9 is changed.
The invention relates to a working principle of a circulating air duct of a three-door refrigerator.
The circulating air duct of the three-door refrigerator of the invention is that the upper part of the box body 50 is provided with the freezing chamber 17 and the refrigerating chamber 12 which are split, the lower part of the box body 50 is provided with the temperature changing chamber 9, and only the freezing chamber 17 is provided with one evaporator 4. Therefore, in the freezing, refrigerating and temperature changing work, the evaporator 4 is commonly used, and the circulating air passage formed by the fan 1, the air passage 3 and the air doors 10 and 15 is utilized to adjust the air inlet volume in each room to reach the required temperature. The cold air is circulated in the circulating air duct.
As shown in fig. 3, in freezing compartment 17, fan 1 discharges cool air through upper opening 16 of hood plate 60 and returns back through lower opening 18 of hood plate 60. In the refrigerating chamber 12, the cool air fan 1 is discharged into the refrigerating chamber 12 through a refrigerating intake door 10 at an upper portion of a partition plate 11, and returns to the freezing chamber 17 through a refrigerating return air opening 13 at a lower portion of the partition plate 11. The temperature of the refrigerating chamber 12 is changed by controlling the size of the air inlet amount by controlling and changing the size of the air opening of the refrigerating air inlet door 10.
As shown in fig. 1 and 2, the cold air blower 1 discharges cold air into the temperature-varying chamber 9 through the air receiving funnel 2, the air duct 3, the temperature-varying air inlet 14, and the temperature-varying air door 15. And then returns back to the freezing chamber 17 through a variable temperature air outlet 8, an air return duct 6 and an air return opening 5 of the variable temperature chamber. The air quantity is controlled by controlling and changing the size of the air opening of the variable temperature air door 15 in the variable temperature chamber 9, so that the temperature of the variable temperature chamber 9 is changed, and the temperature can be continuously adjusted from-18 ℃ to 5 ℃.
The circulating air duct of the three-door refrigerator has the advantages that: the requirement of American users on a large and wide refrigerating chamber is met, the refrigerating chamber of a common side-by-side combination refrigerator is narrow and is not suitable for storing large trays, and the newly designed side-by-side combination three-door refrigerator can completely meet the requirement because the bottom of the newly designed side-by-side combination three-door refrigerator is an integral large drawer; meanwhile, the temperature-changing chamber can be continuously adjusted from cold storage to soft freezing and then to freezing through the circulating air duct, so that the conversion of large cold storage or large freezing (such as large cold storage in summer and large freezing in winter) can be realized.
The circulating air duct of the three-door refrigerator has the most outstanding advantages that: the freezing air outlet enters the refrigeration and temperature change chambers, the air duct is installed after foaming, the maintenance is convenient, the process is simple, and one evaporator of the temperature change chamber can be saved due to the fact that the evaporator is used for temperature adjustment in the refrigeration chamber, the refrigeration chamber and the temperature change chamber.
The circulating air duct of the three-door refrigerator is divided into the upper half and the lower half respectively as a refrigerating chamber and a freezing chamber, and the lower part is a drawer type temperature-changing chamber, so that the common side-by-side refrigerator generally has no temperature-changing chamber, even if the temperature-changing chamber exists, the common side-by-side refrigerator is placed at the lowest part of the refrigerating chamber, the temperature-changing function from refrigerating to soft freezing and then freezing can not be realized, the temperature-changing function can only be adjusted between the refrigerating and the soft freezing, and the lowest temperature is about. The three-door side-by-side combination refrigerator with one evaporator releases the soft freezing chamber from the refrigerating chamber to form a single compartment, and completely realizes the temperature changing function.
Claims (10)
1. The utility model provides a circulation wind channel of three-door refrigerator, includes box (50), the upper portion of box (50) is equipped with run-to-run freezer (17) and walk-in (12), and the lower part of box (50) is equipped with temperature-changing room (9) of whole drawer type to only set up one evaporimeter (4) in freezer (17), its characterized in that: and circulating air ducts for adjusting the indoor temperatures of the freezing chamber (17), the refrigerating chamber (12) and the temperature changing chamber (9) by using the same evaporator (4) are arranged among the freezing chamber, the refrigerating chamber and the temperature changing chamber.
2. The circulating air duct of the three-door refrigerator according to claim 1, wherein: the circulating air duct is provided with a fan (1) shared by a freezing chamber (17), a refrigerating chamber (12) and a temperature changing chamber (9), and the fan (1) is arranged above the evaporator (4) in the freezing chamber (17).
3. The circulating air duct of the three-door refrigerator according to claim 1, wherein: and an air return duct (6) and an air return opening (5) of the temperature-variable chamber (9) are arranged between the bottom wall (7) of the freezing chamber (17) and the top wall of the temperature-variable chamber (9).
4. The circulating air duct of the three-door refrigerator according to claim 1, wherein: the refrigerating chamber (17) is also internally provided with an air duct (3), the upper end of the air duct (3) is connected with an air receiving hopper (2) corresponding to the fan (1), the lower end of the air duct (3) penetrates through the bottom wall (7), the air duct is communicated with the temperature-changing chamber (9) through a temperature-changing air inlet (14) and a temperature-changing air door (15) which are arranged at the upper part of the temperature-changing chamber (9), and the upper part of the temperature-changing chamber (9) is also provided with a temperature-changing air outlet (8) which is communicated with the air return duct (6) and the air return opening (5) to form a circulating air duct for adjusting the temperature of.
5. The circulating air duct of the three-door refrigerator according to claim 1, wherein: a partition plate (11) is arranged between the freezing chamber (17) and the refrigerating chamber (12), a refrigerating air inlet door (10) leading the freezing chamber (17) into the refrigerating chamber (12) is arranged at the upper part of the partition plate (11), the refrigerating air inlet door (10) corresponds to the fan (1), and a refrigerating air return opening (13) communicating the refrigerating chamber (12) with the freezing chamber (17) is arranged at the lower part of the partition plate (11), so that a circulating air duct for adjusting the refrigerating chamber (12) is formed.
6. The circulating air duct of the three-door refrigerator according to claim 1, wherein: the refrigerating chamber (17) is also internally provided with a fan cover plate (60) which is adaptive to the fan (1), the upper part of the fan cover plate (60) is provided with an upper air exhaust opening (16), and the lower part of the fan cover plate (60) is provided with a lower air return opening (18), thereby forming a circulating air duct of the refrigerating chamber (17).
7. The circulating air duct of the three-door refrigerator according to claim 1, wherein: the refrigerating chamber (12) and the temperature-changing chamber (9) are respectively provided with a first temperature sensor (25) and a second temperature sensor (26) which are connected with a refrigerator control part (22) and can measure the temperature in the refrigerating chamber (12) and the temperature-changing chamber (9).
8. The circulating air duct of the three-door refrigerator according to claim 4 or 5, wherein: the variable temperature air door (15) and the refrigeration air inlet door (10) are identical in structure and comprise an air door seat (20) and a rotatable wind shield sheet (21) arranged on the air door seat (20), and one end of the rotatable wind shield sheet (21) is provided with a transmission part (30) connected with a control part (22).
9. The circulating air duct of the three-door refrigerator according to claim 8, wherein: an air port (31) is arranged on the air door seat (20), and the air port (31) is adapted to the rotatable wind shield sheet (21).
10. The circulating air duct of the three-door refrigerator according to claim 4, wherein: the cross section of the air duct (3) is round, square or rectangular.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2006100874129A CN101086407B (en) | 2006-06-09 | 2006-06-09 | Circulated air channel of three-door refrigerator |
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| CN2006100874129A CN101086407B (en) | 2006-06-09 | 2006-06-09 | Circulated air channel of three-door refrigerator |
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| CN101086407A true CN101086407A (en) | 2007-12-12 |
| CN101086407B CN101086407B (en) | 2011-06-15 |
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| CN101839602A (en) * | 2009-03-20 | 2010-09-22 | 海尔集团公司 | Refrigeration device and temperature control method of cold rooms thereof |
| CN101922846A (en) * | 2010-08-17 | 2010-12-22 | 海信容声(广东)冰箱有限公司 | Control system for single-door frostless refrigerator |
| CN102331138A (en) * | 2011-09-22 | 2012-01-25 | 海信容声(广东)冰箱有限公司 | Refrigerator air channel structure capable of synchronously adjusting refrigeration and freezing |
| CN102494460A (en) * | 2011-12-05 | 2012-06-13 | 海尔集团公司 | Refrigerator |
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| CN108088147A (en) * | 2017-12-07 | 2018-05-29 | 合肥华凌股份有限公司 | Refrigerator |
| CN108548355A (en) * | 2018-03-09 | 2018-09-18 | 青岛海尔股份有限公司 | Air duct integration module and refrigerator with the air duct integration module |
| CN108955038A (en) * | 2018-09-05 | 2018-12-07 | 长虹美菱股份有限公司 | A kind of three Horizontal type wind-cooling refrigerator-freezers |
| WO2019001552A1 (en) * | 2017-06-30 | 2019-01-03 | 青岛海尔特种电冰箱有限公司 | Refrigeration and freezing apparatus |
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| US5816060A (en) * | 1996-12-23 | 1998-10-06 | General Electric Company | Air flow control in a side-by-side refrigerator |
| CN2397461Y (en) * | 1999-08-13 | 2000-09-20 | 合肥荣事达电冰箱有限公司 | Refrigerator with improved refrigeration air duct |
| CN2392142Y (en) * | 1999-09-14 | 2000-08-16 | 合肥美菱股份有限公司 | Volume changeable refrigerator |
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| CN101839602B (en) * | 2009-03-20 | 2013-04-24 | 海尔集团公司 | Refrigeration device and temperature control method of cold rooms thereof |
| CN101839602A (en) * | 2009-03-20 | 2010-09-22 | 海尔集团公司 | Refrigeration device and temperature control method of cold rooms thereof |
| CN101922846A (en) * | 2010-08-17 | 2010-12-22 | 海信容声(广东)冰箱有限公司 | Control system for single-door frostless refrigerator |
| CN102331138A (en) * | 2011-09-22 | 2012-01-25 | 海信容声(广东)冰箱有限公司 | Refrigerator air channel structure capable of synchronously adjusting refrigeration and freezing |
| CN102494460A (en) * | 2011-12-05 | 2012-06-13 | 海尔集团公司 | Refrigerator |
| CN106568271A (en) * | 2016-10-25 | 2017-04-19 | 青岛海尔股份有限公司 | Single system air-cooled refrigerator and control method thereof |
| WO2018077175A1 (en) * | 2016-10-25 | 2018-05-03 | 青岛海尔股份有限公司 | Single-system air-cooled refrigerator and control method thereof |
| US10969164B2 (en) | 2016-10-25 | 2021-04-06 | Qingdao Haier Joint Stock Co., Ltd. | Single-system air-cooled refrigerator and control method therefor |
| WO2019001552A1 (en) * | 2017-06-30 | 2019-01-03 | 青岛海尔特种电冰箱有限公司 | Refrigeration and freezing apparatus |
| CN107543329A (en) * | 2017-08-14 | 2018-01-05 | 宁波华斯特林电机制造有限公司 | A kind of vehicle-mounted multi-temperature zone refrigerator |
| CN107300288A (en) * | 2017-08-25 | 2017-10-27 | 合肥美菱股份有限公司 | A kind of cross side-by-side combination refrigerator with temperature cycling |
| CN107806733A (en) * | 2017-10-31 | 2018-03-16 | 澳柯玛股份有限公司 | Refrigerator with refrigerating chamber, refrigerating chamber and temperature-changing chamber |
| CN108088147A (en) * | 2017-12-07 | 2018-05-29 | 合肥华凌股份有限公司 | Refrigerator |
| CN108548355A (en) * | 2018-03-09 | 2018-09-18 | 青岛海尔股份有限公司 | Air duct integration module and refrigerator with the air duct integration module |
| CN108955038A (en) * | 2018-09-05 | 2018-12-07 | 长虹美菱股份有限公司 | A kind of three Horizontal type wind-cooling refrigerator-freezers |
| CN111121372A (en) * | 2019-08-19 | 2020-05-08 | 江苏元隆电器有限公司 | Single-evaporator three-temperature-zone air path system for American refrigerator |
| CN111578594A (en) * | 2020-05-20 | 2020-08-25 | 长虹美菱股份有限公司 | Cold-stored wind channel and refrigerator |
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