CN211876489U - A kind of refrigerator - Google Patents
A kind of refrigerator Download PDFInfo
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- CN211876489U CN211876489U CN202020106341.8U CN202020106341U CN211876489U CN 211876489 U CN211876489 U CN 211876489U CN 202020106341 U CN202020106341 U CN 202020106341U CN 211876489 U CN211876489 U CN 211876489U
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Abstract
The embodiment of the utility model discloses refrigerator relates to refrigerator technical field. The refrigerator is used for solving the problem that the temperature fluctuation of the refrigerating space of the existing refrigerator is large. The refrigerator comprises a machine shell; a refrigerating space formed in the cabinet; a refrigeration air duct assembly; refrigeration wind channel subassembly includes: the evaporator bin is provided with an air outlet and an air inlet; the evaporator is arranged in the evaporator bin; the inlet of the air mixing duct is communicated with the air outlet, and the outlet of the air mixing duct is communicated with the inlet of the refrigerating space; the inlet of the first air return duct is communicated with the refrigerating space, and the outlet of the first air return duct is communicated with the air inlet; the inlet of the second air return duct is communicated with the refrigerating space, and the outlet of the second air return duct is communicated with the air mixing duct; the opening degree of the first air door can be adjusted, and the first air door is used for adjusting the air output of the air outlet; and the opening degree of the second air door is adjustable and is used for adjusting the air return quantity of the second air return channel. The utility model can be used for low-temperature storage of food.
Description
Technical Field
The utility model relates to a refrigerator technical field especially relates to a refrigerator.
Background
Along with the improvement of living standard of people, people put forward higher requirements on refrigerators, such as: in order to make the refrigerator more suitable for the refrigeration of various foods, the fresh-keeping of the foods (such as vegetables, fruits and the like) is quite sensitive to temperature fluctuation, particularly the foods in a cold storage area are fresh-kept, the temperature fluctuation can drive the humidity change, and water evaporated from the foods can continuously run off in the form of refrigerated condensed water, so that the fresh-keeping period of the foods is greatly shortened. Therefore, a constant temperature function is required for the cold storage area.
The existing refrigerator is provided with a refrigerating space and an evaporator bin, wherein an outlet of the evaporator bin is communicated with the refrigerating space through an air supply duct, and the refrigerating space is communicated with an inlet of the evaporator bin through an air return duct. When the refrigeration device works, cold air sent out by the evaporator bin enters the refrigeration space through the air supply duct and then returns to the evaporator bin through the air return duct to finish a refrigeration cycle.
When the refrigerator works, the temperature of wind entering the refrigerating space is unstable, the fluctuation is large, and the wind enters the refrigerating space from minus twenty degrees to minus ten degrees, so that the cold input into the refrigerating space and the cold dissipated from the refrigerating space are not easy to keep balance, the temperature fluctuation of the refrigerating space is large (the fluctuation range is +/-2 ℃ as shown in figure 3), and certain influence is caused on the fresh keeping of refrigerated food.
SUMMERY OF THE UTILITY MODEL
An embodiment of the utility model provides a refrigerator for solve the great problem of the temperature fluctuation in the cold-stored space of current refrigerator.
In order to achieve the above object, an embodiment of the present invention provides a refrigerator, including: a housing; a refrigerating space formed in the cabinet; a refrigeration air duct assembly; the refrigeration wind channel subassembly includes: an evaporator bin having an air outlet and an air inlet; the evaporator is arranged in the evaporator bin; the inlet of the air mixing duct is communicated with the air outlet, and the outlet of the air mixing duct is communicated with the inlet of the refrigerating space; the refrigerating fan is used for driving air to flow into the refrigerating space from the air mixing duct; the inlet of the first air return duct is communicated with the refrigerating space, and the outlet of the first air return duct is communicated with the air inlet; the inlet of the second air return duct is communicated with the refrigerating space, and the outlet of the second air return duct is communicated with the air mixing duct; the opening of the first air door can be adjusted, and the first air door is used for adjusting the air output of the air outlet; and the opening degree of the second air door is adjustable and is used for adjusting the air output of the outlet of the second air return channel.
The embodiment of the utility model provides a refrigerator, through setting up first return air duct, the second return air duct, first air door and second air door, in this refrigerator working process like this, through adjusting first air door, the size of second air door aperture, just can adjust the colder wind of air outlet outflow temperature, the higher wind of temperature in the mixed wind channel of the export outflow of second return air duct, thereby just can adjust the temperature size of the wind in the mixed wind channel, with scattering and disappearing and providing the keep balance of cold volume in guaranteeing cold storage space, thereby can reduce the fluctuation of temperature in the cold storage space, make temperature remain stable in the cold storage space, and then be favorable to the fresh-keeping of cold-stored food.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic cross-sectional view of a refrigerator according to some embodiments of the present invention;
fig. 2 is a schematic cross-sectional view of a refrigerator according to another embodiment of the present invention;
fig. 3 is a temperature fluctuation curve of the refrigerating space of the refrigerator according to the embodiment of the present invention;
fig. 4 is a temperature fluctuation curve of a refrigerating space of a conventional refrigerator.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, are not to be construed as limiting the present invention.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; the specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The terms "first", "second" and "first" are used 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 one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
Fig. 1 is a cross-sectional view of a refrigerator according to an embodiment of the present invention, and as shown in fig. 1, the refrigerator includes a cabinet 200; a refrigerating space 300 formed in the cabinet 200; the refrigerating door 400, the refrigerating door 400 is used for opening or closing the refrigerating space 300;
as shown in fig. 1, the refrigerator further includes: refrigeration wind channel subassembly 100, refrigeration wind channel subassembly 100 includes: the evaporator comprises an evaporator bin 1, wherein the evaporator bin 1 is provided with an air outlet 11 and an air inlet 12; the evaporator 2 is arranged in the evaporator bin 1; an inlet of the air mixing duct 3 is communicated with the air outlet 11, and an outlet of the air mixing duct 3 is communicated with an inlet 310 of the refrigerating space 300; the refrigerating fan 4 is used for driving air to flow into the refrigerating space 300 from the air mixing duct 3; a first air return duct 5a, an inlet of the first air return duct 5a being communicated with the refrigerating space 300, and an outlet thereof being communicated with the air inlet 12; the inlet of the second air return duct 5b is communicated with the refrigerating space 300, and the outlet of the second air return duct 5b is communicated with the air mixing duct 3; the opening degree of the first air door 6a can be adjusted, and the first air door 6a is used for adjusting the air output of the air outlet 11; and a second damper 6b, the opening degree of which is adjustable, and which is used for adjusting the air output of the outlet (outlet a shown in fig. 1) of the second return air duct 5 b.
The working process of the refrigerator is as follows: as shown in fig. 1, after the refrigerator is powered on, the temperature in the refrigerating space 300 is high, and at this time, the second air door 6b is closed, so that the return air with relatively high temperature flowing out of the second return air duct 5b of the refrigerating space 300 cannot enter the air mixing duct 3; meanwhile, the first air door 6a is opened, so that the return air from the first return air duct 5a of the refrigerating space 300 enters the air mixing duct 3 after being cooled by the evaporator 2, and then enters the refrigerating space 300 under the driving of the refrigerating fan 4, and the aim of rapidly cooling the refrigerating space 300 is fulfilled;
when the temperature in the refrigerating space 300 is close to the set temperature T, the opening degree of the first air door 6a is reduced, meanwhile, the second air door 6b is gradually opened, return air with higher temperature in the second return air duct 5b enters the air mixing air duct 3, so that the air temperature in the air mixing air duct 3 is increased, the falling speed of the temperature of the refrigerating space 300 is reduced, and the accurate control of the temperature in the refrigerating space 300 is improved;
as the temperature in the refrigerating space 300 is closer to the set temperature T, the opening degrees of the first air door 6a and the second air door 6b are adjusted, so that the cold entering the refrigerating space 300 is close to the cold dissipated by the refrigerating space 300, that is, the cold balance is achieved, and the temperature in the refrigerating space 300 is ensured to be constant; that is: when the cold energy in the refrigerating space 300 is greatly dissipated, the temperature in the refrigerating space 300 rises and starts to deviate upwards from the set temperature T, at the moment, the opening degree of the first air door 6a is increased, the opening degree of the second air door 6b is reduced, and the conveying proportion of the air with lower temperature is increased so as to increase the cold energy conveying to the refrigerating space 300; when the amount of cooling input into the refrigerating space 300 is large, the temperature in the refrigerating space 300 decreases and starts to deviate downward from the set temperature T, and at this time, the opening degree of the first damper 6a decreases, the opening degree of the second damper 6b increases, and the transport ratio of the wind having a high temperature is increased to reduce the transport of cooling into the refrigerating space 300.
The embodiment of the utility model provides a refrigerator, through setting up first return air duct 5a, second return air duct 5b, first air door 6a and second air door 6b, in this refrigerator working process like this, through adjusting first air door 6a, the size of second air door 6b aperture, just can adjust the air that flows out the temperature from air outlet 11 and be colder, the mixing ratio of the higher wind of temperature that flows out from the export of second return air duct 5b in mixed wind channel 3, thereby just can adjust the temperature size of the wind in mixed wind channel 3, with the scattering and disappearing of cold volume in guaranteeing cold-stored space 300 and providing keep balance, thereby can reduce the fluctuation of temperature in cold-stored space 300 (the fluctuation range is 0.5 ℃ as shown in figure 4), make temperature remain stable in cold-stored space 300, and then be favorable to the fresh-keeping of cold-stored food.
In the above embodiment, the position of the first damper 6a is not exclusive, and for example, as shown in fig. 1, the first damper 6a may be provided at the air outlet 11. In addition, the first damper 6a may be disposed in the evaporator compartment 1 and located on the air outlet side of the evaporator 2. Compare in setting up first air door 6a in evaporimeter storehouse 1, when first air door 6a set up in air outlet 11 department, need not to put into the inside in evaporimeter storehouse 1 with first air door 6a when the installation, make things convenient for the installation and the dismantlement of first air door 6a relatively.
The position of the second damper 6b is not exclusive, and for example, as shown in fig. 1, the second damper 6b may be provided at the outlet of the second return duct 5 b. The second damper 6b may be provided inside the second return duct 5 b. Compare in setting up second air door 6b in the inside of second return air duct 5b, when second air door 6b set up in the exit of second return air duct 5b, need not to put into the inside of second return air duct 5b with second air door 6b when the installation, make things convenient for the installation and the dismantlement of second air door 6b relatively.
The location of the refrigerating fan 4 is not exclusive, for example, as shown in fig. 1, the refrigerating fan 4 may be disposed in the air mixing duct 3 at the inlet 310 of the refrigerating space 300. In addition, the refrigerating fan 4 may be disposed in the refrigerating space 300 at the inlet 310 of the refrigerating space 300. Compared with the arrangement in the refrigerating space 300, when the refrigerating fan 4 is arranged in the air mixing duct 3, the refrigerating fan 4 can be prevented from occupying the space in the refrigerating space 300, so that the utilization rate in the refrigerating space 300 can be improved.
As shown in fig. 2, the refrigerator may have only a refrigerating space 300; in addition, the refrigerator may also have a refrigerating space 300 and a freezing space 500, and as shown in fig. 1, the refrigerator further includes: a freezing space 500 formed in the cabinet 200, an inlet of the freezing space 500 communicating with the evaporator compartment 1, an outlet (shown as b in fig. 1) communicating with the air inlet 12, and an inlet (shown as c in fig. 1) of the freezing space 500 being located at an air outlet side of the evaporator 2; the freezing fan 7, the freezing fan 7 is used for driving the wind to flow into the freezing space 500 from the evaporator bin 1; the refrigerator further includes a freezing door body 600 for opening or closing the freezing space 500. Therefore, the refrigerator can be used for refrigerating food and freezing food, and the storage range of the food is widened.
In the embodiment of the refrigerator having the refrigerating space 300 and the freezing space 500, in order to avoid frequent start and stop of the compressor during the operation of the refrigerator, as shown in fig. 1, a connection port 51 communicating with the first air return duct 5a is formed on the air duct wall of the first air return duct 5a, and the outlet of the freezing space 500 is communicated with the connection port 51. When the refrigerator works, the return air with higher temperature in the first return air duct 5a can generate heat exchange with the air with lower temperature near the outlet of the freezing space 500 when flowing through the connecting port 51, so that the return air in the first return air duct 5a is cooled, and even if the evaporator 2 does not refrigerate, the return air in the first return air duct 5a can play a refrigeration role on the stored food after entering the refrigerating space 300 through the evaporator bin 1 and the air mixing duct 3 (namely, for the refrigerating space 300, the refrigerator has two cold sources of the evaporator 2 and the freezing space 500), so that the compressor of the refrigerator does not need to be started frequently to refrigerate the evaporator 2, the impact damage of the compressor on the rotor caused by frequent starting of the compressor can be reduced, and the service life of the compressor can be prolonged.
The position of the freezing fan 7 is not exclusive, for example, as shown in fig. 1, the freezing fan 7 is disposed in the evaporator bin 1 and is located at the inlet of the freezing space 500, and a ventilation space 8 is provided between the freezing fan 7 and the inner wall of the evaporator bin 1, and the ventilation space 8 is used for enabling the air to the refrigerating space 300 to smoothly bypass the freezing fan 7. Compare in setting up in freezing space 500, when freezing fan 7 sets up in evaporimeter storehouse 1, can avoid freezing fan 7 to occupy the space in freezing space 500 to can improve the utilization ratio in freezing space 500.
In the embodiment in which the refrigerators each have the refrigerating space 300 and the freezing space 500, as shown in fig. 1, the refrigerating space 300 and the freezing space 500 are arranged in a vertical direction; the refrigerating space 300 may be located above the freezing space 500, or may be located below the freezing space 500, which is not limited herein.
In the embodiment where the refrigerating space 300 is located above the freezing space 500, as shown in fig. 1, the first return duct 5a includes a vertical duct section 52 and a horizontal duct section 53, and the horizontal duct section 53 is located below the freezing space 500.
In order to avoid the vertical duct section 52 occupying the space of the freezing space 500, the vertical duct section 52 is disposed laterally of the freezing space 500 in the width direction of the refrigerator. The vertical duct segment 52 may be disposed at one side of the freezing space 500, or may be disposed at two sides of the freezing space 500, which is not limited herein; as shown in fig. 1, the width direction of the refrigerator is a direction perpendicular to both the height direction H of the refrigerator and the thickness direction X of the freezing door 600.
On the first air return duct 5a, the connection port 51 may be disposed on the horizontal duct section 53 (as shown in fig. 1) or may be disposed on the vertical duct section 52. Compared with the vertical air duct section 52, when the connection port 51 is arranged on the horizontal air duct section 53, the cold air in the freezing space 500 can be better sunk into the first air return duct 5a through the connection port 51 to exchange heat with the refrigerated return air in the first air return duct 5a, so that the refrigerated return air can more fully utilize the cold stored in the freezing space 500.
As shown in fig. 1, the cooling air duct assembly 100 further includes a temperature sensor 9, and the temperature sensor 9 is disposed in the refrigerating space 300. The temperature sensor 9 can be used for feeding back the temperature of the cold air entering the refrigerating space 300, and the controller of the refrigerator can adjust the opening degrees of the first damper 6a and the second damper 6b according to the temperature fed back by the temperature sensor 9.
The location of the temperature sensor 9 in the refrigerating space 300 is not exclusive, and for example, as shown in fig. 1, the temperature sensor 9 may be provided at the inlet 310 of the refrigerating space 300. In addition, the temperature sensor 9 may be provided at a middle position in the vertical direction of the refrigerating space 300. When the temperature sensor 9 is disposed at the inlet 310 of the refrigerating space 300, the cold air at the position is in contact with the food in the refrigerating space 300 to perform heat exchange, and the temperature of the cold air entering the refrigerating space 300 can be more accurately obtained by disposing the temperature sensor 9 at the position than when the temperature sensor 9 is disposed at the middle position of the refrigerating space 300 in the vertical direction.
In the description herein, particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or examples.
The above embodiments are only specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of changes or substitutions within the technical scope of the present invention, and all should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (8)
1. A refrigerator, comprising:
a housing;
a refrigerating space formed in the cabinet;
a refrigeration air duct assembly;
its characterized in that, refrigeration wind channel subassembly includes:
an evaporator bin having an air outlet and an air inlet;
the evaporator is arranged in the evaporator bin;
the inlet of the air mixing duct is communicated with the air outlet, and the outlet of the air mixing duct is communicated with the inlet of the refrigerating space;
the refrigerating fan is used for driving air to flow into the refrigerating space from the air mixing duct;
the inlet of the first air return duct is communicated with the refrigerating space, and the outlet of the first air return duct is communicated with the air inlet;
the inlet of the second air return duct is communicated with the refrigerating space, and the outlet of the second air return duct is communicated with the air mixing duct;
the opening of the first air door can be adjusted, and the first air door is used for adjusting the air output of the air outlet;
and the opening degree of the second air door is adjustable and is used for adjusting the air output of the outlet of the second air return channel.
2. The refrigerator of claim 1, wherein the first damper is disposed at the air outlet.
3. The refrigerator according to claim 1, wherein the second damper is provided at an outlet of the second return duct.
4. The refrigerator as claimed in claim 1, wherein the refrigerating fan is disposed in the air mixing duct at an inlet of the refrigerating space.
5. The refrigerator according to any one of claims 1 to 4, wherein a connecting port communicated with the first air return duct is formed on an air duct wall of the first air return duct;
the refrigerator further includes:
the freezing space is formed in the shell, the inlet of the freezing space is communicated with the evaporator bin, the outlet of the freezing space is communicated with the connecting port, and the inlet of the freezing space is positioned on the air outlet side of the evaporator;
a freezing fan for driving air to flow from the evaporator bin into the freezing space.
6. The refrigerator of claim 5, wherein the freezing fan is disposed in the evaporator compartment at an inlet of the freezing space, and a ventilation space is provided between the freezing fan and an inner wall of the evaporator compartment.
7. The refrigerator according to claim 5, wherein the refrigerating space and the freezing space are arranged in a vertical direction, and the refrigerating space is located above the freezing space;
the first air return duct comprises a vertical air duct section and a horizontal air duct section, the horizontal air duct section is located below the freezing space, and the connecting port is arranged on the horizontal air duct section.
8. The refrigerator according to any one of claims 1 to 4, wherein the cooling air duct assembly further comprises a temperature sensor disposed in the refrigerating space at an inlet of the refrigerating space.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020106341.8U CN211876489U (en) | 2020-01-17 | 2020-01-17 | A kind of refrigerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020106341.8U CN211876489U (en) | 2020-01-17 | 2020-01-17 | A kind of refrigerator |
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| Publication Number | Publication Date |
|---|---|
| CN211876489U true CN211876489U (en) | 2020-11-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202020106341.8U Active CN211876489U (en) | 2020-01-17 | 2020-01-17 | A kind of refrigerator |
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| CN (1) | CN211876489U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113915905A (en) * | 2021-08-25 | 2022-01-11 | 海信（山东）冰箱有限公司 | Refrigerator and temperature control method of constant temperature chamber of refrigerator |
| CN114593553A (en) * | 2022-03-30 | 2022-06-07 | 西安交通大学 | Constant-temperature chamber of refrigerator, control method of constant-temperature chamber and refrigerator |
| DE102022117539A1 (en) | 2022-07-13 | 2024-01-18 | Liebherr-Hausgeräte Lienz Gmbh | Refrigerator and/or freezer |
-
2020
- 2020-01-17 CN CN202020106341.8U patent/CN211876489U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113915905A (en) * | 2021-08-25 | 2022-01-11 | 海信（山东）冰箱有限公司 | Refrigerator and temperature control method of constant temperature chamber of refrigerator |
| CN114593553A (en) * | 2022-03-30 | 2022-06-07 | 西安交通大学 | Constant-temperature chamber of refrigerator, control method of constant-temperature chamber and refrigerator |
| CN114593553B (en) * | 2022-03-30 | 2022-11-15 | 西安交通大学 | Constant-temperature chamber of refrigerator, control method of constant-temperature chamber and refrigerator |
| DE102022117539A1 (en) | 2022-07-13 | 2024-01-18 | Liebherr-Hausgeräte Lienz Gmbh | Refrigerator and/or freezer |
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