CN216048597U - Refrigerator air duct structure and refrigerator - Google Patents
Refrigerator air duct structure and refrigerator Download PDFInfo
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- CN216048597U CN216048597U CN202122528594.1U CN202122528594U CN216048597U CN 216048597 U CN216048597 U CN 216048597U CN 202122528594 U CN202122528594 U CN 202122528594U CN 216048597 U CN216048597 U CN 216048597U
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- heat exchanger
- temperature
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- 230000001105 regulatory effect Effects 0.000 claims description 4
- 238000005057 refrigeration Methods 0.000 abstract description 15
- 235000013611 frozen food Nutrition 0.000 abstract description 4
- 239000003507 refrigerant Substances 0.000 description 6
- 235000013305 food Nutrition 0.000 description 4
- 230000008014 freezing Effects 0.000 description 4
- 238000007710 freezing Methods 0.000 description 4
- 230000005494 condensation Effects 0.000 description 2
- 238000009833 condensation Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000010257 thawing Methods 0.000 description 1
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- Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)
Abstract
The utility model discloses a refrigerator air duct structure and a refrigerator, comprising: the refrigerator comprises a refrigeration air duct communicated with a refrigeration chamber of a refrigerator, wherein a heat exchanger communicated with a heat exchange circulating pipeline of the refrigerator is arranged in the refrigeration air duct, and the heat exchanger is connected with a condenser of the refrigerator in parallel. According to the utility model, the condensing coil is assembled in the refrigerating air duct to form the heat exchange cavity, the temperature sensor is arranged in the refrigerating air duct, when the refrigerating chamber needs to be refrigerated, the refrigerating air door is opened, cold air subjected to heat exchange through the evaporator enters the heat exchange cavity, when the temperature of the cold air is lower than a preset temperature, the condensing coil works, the cold air exchanges heat with the cold air, and after the temperature is raised, the cold air flows to each air outlet of the refrigerating air duct to be blown into the refrigerating chamber, so that the non-frozen food is prevented from being frozen due to the fact that the air outlet temperature of the refrigerating chamber is too low.
Description
Technical Field
The utility model relates to the technical field of refrigerators, in particular to a refrigerator air duct structure and a refrigerator.
Background
Air-cooled refrigerator is more and more receiving consumer's favor in the existing market, and air-cooled refrigerator's output and sales volume accounts for than also more and more, the leading reason: firstly, the air-cooled refrigerator is more convenient to use and does not need manual defrosting; secondly, as the volume of the refrigerator is larger and larger, the temperature uniformity of the air-cooled refrigerator is more advantageous.
However, the disadvantages of the air-cooled refrigerator are more obvious, and especially the single-system air-cooled refrigerator is that the cold air after heat exchange through the evaporator is blown into each compartment through the air duct by the fan in principle, in fact, the temperature of the cold air after heat exchange through the evaporator is generally between-20 ℃ and-30 ℃, when the cold air is blown into the refrigerating compartment through the air duct, the temperature is often around-10 ℃ or even lower, the cold air is directly blown onto the food, the phenomenon that the refrigerated food is frozen is easily caused, and therefore the cold air becomes a pain point of consumers.
SUMMERY OF THE UTILITY MODEL
The utility model provides a refrigerator air duct structure and a refrigerator, aiming at solving the technical problem that refrigerated foods are easy to freeze in the prior art.
The technical scheme adopted by the utility model is as follows:
the utility model provides a refrigerator air duct structure, comprising: the refrigerator comprises a refrigeration air duct communicated with a refrigeration chamber of a refrigerator, wherein a heat exchanger communicated with a heat exchange circulating pipeline of the refrigerator is arranged in the refrigeration air duct, and the heat exchanger is connected with a condenser of the refrigerator in parallel.
The utility model also includes: the control valve is arranged on a connecting pipeline of the heat exchanger, the temperature sensor is used for detecting the temperature of air passing through the heat exchanger in the refrigerating air duct, and the controller of the heat exchanger is switched on and off according to the air temperature control valve. And when the air temperature is lower than the preset temperature, the controller opens the control valve to communicate with a connecting pipeline of the heat exchanger. And when the air temperature is higher than the preset temperature, the controller closes the control valve to disconnect the connecting pipeline of the heat exchanger.
Furthermore, the control valve is simultaneously communicated with the inlet pipeline of the condenser and the connecting pipeline of the heat exchanger, and the inlet pipeline of the condenser and the connecting pipeline of the heat exchanger can be disconnected.
Preferably, the control valve is an on-off valve or a flow regulating valve.
Preferably, the heat exchanger is a condenser coil.
Further, cold-stored wind channel includes from the main wind channel that upwards extends down, connects many tributary wind channels at main wind channel end, the heat exchanger sets up in the main wind channel, be equipped with a plurality of cold-stored air outlet intercommunications on the tributary wind channel the walk-in. The main air duct extends from bottom to top to the top area of the refrigerator, and the branch air ducts extend downwards after extending transversely for a certain distance.
The utility model further provides a refrigerator which comprises the refrigerator air duct structure.
Compared with the prior art, the condensation coil is arranged on one section of the refrigeration air duct to form the heat exchange cavity, the temperature sensor is arranged in the refrigeration air duct, when the refrigeration chamber needs to refrigerate, the refrigeration air door is opened, cold air subjected to heat exchange through the evaporator enters the heat exchange cavity, when the temperature of the cold air is lower than the preset temperature, the condensation coil works, the cold air is subjected to heat exchange with the cold air, and after the temperature is increased, the cold air is distributed to each air outlet of the refrigeration air duct to be blown into the refrigeration chamber, so that the non-frozen food freezing caused by the fact that the air outlet temperature of the refrigeration chamber is too low is avoided.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.
Fig. 1 is a schematic view of a rear structure of a refrigerator in the prior art;
FIG. 2 is a schematic view of a rear structure of a refrigerator according to an embodiment of the present invention;
FIG. 3 is an enlarged view of a portion of FIG. 2;
FIG. 4 is a schematic side view of a refrigerator according to an embodiment of the present invention;
FIG. 5 is an enlarged view of a portion of FIG. 4;
fig. 6 is a pipeline connection diagram of a refrigerator according to an embodiment of the present invention.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.
The principles and construction of the present invention will be described in detail below with reference to the drawings and examples.
As shown in fig. 1, in the single-system air-cooled refrigerator, air with originally high temperature in a refrigerating chamber returns to a freezing chamber evaporator through an air return duct of the refrigerating chamber through air circulation, and cold air after heat exchange is blown into the refrigerating chamber through a refrigerating duct. The evaporator outputs cold energy to the outside, the temperature of cold air after heat exchange by the evaporator is generally between-20 ℃ and-30 ℃, when the cold air is blown to the refrigerating chamber through the air duct, the temperature is often about-10 ℃ or even lower, and the cold air is directly blown to non-frozen food, so that the phenomenon of food freezing is easily caused.
In the refrigeration system of the refrigerator, high-temperature and high-pressure gaseous refrigerant output by a compressor firstly enters a condenser and exchanges heat with the external environment through a condenser coil to be condensed into liquid refrigerant, and in the process, the refrigerant gives off heat to the outside through the condenser.
As shown in fig. 2 and 6, the present invention provides an air duct structure for a refrigerator, including: the refrigerating air duct 2 is communicated with a refrigerating chamber of the refrigerator, namely a refrigerating air outlet is formed in the tail end of the refrigerating air duct 2 and is used for being communicated with the refrigerating chamber. The heat exchanger 1 is arranged in the refrigerating air duct 2, specifically is a condensing coil, is communicated with a heat exchange circulating pipeline of the refrigerator and is connected with a condenser of the refrigerator in parallel, so that high-temperature and high-pressure refrigerants coming out of the compressor can flow through the heat exchanger, part of cold air carries out heat exchange through the heat exchanger, and the cold air is blown into the refrigerating chamber through the refrigerating air duct after the temperature is increased. Therefore, the problem that the air outlet temperature of the refrigerating chamber is too low to cause the freezing of the non-frozen food is solved.
As shown in fig. 2 to 6, the present invention further includes: the control valve 6 is arranged on a connecting pipeline of the heat exchanger 1, specifically is a three-way valve capable of opening two branches, namely, the port A of the control valve 6 is connected with an inlet pipeline of the condenser 52, the port B is connected with a connecting pipeline of the heat exchanger 1 (or arranged at an outlet of an outlet pipeline of the condenser and an outlet of the connecting pipeline of the heat exchanger), and the control valve 6 can also be a switch valve directly arranged on the connecting pipeline of the heat exchanger. The temperature sensor is arranged on the refrigerating air duct and positioned between the heat exchanger and the tail end of the refrigerating air duct, the temperature sensor can detect the air temperature heated by the heat exchanger, and the controller controls the air temperature according to the on-off of the air temperature control valve.
In a specific embodiment, when the air temperature is lower than the preset temperature, the controller opens the control valve to allow the high-temperature refrigerant to flow through the heat exchanger 1 to heat the air in the refrigerating air duct 2. When the air temperature is higher than the preset temperature, the controller closes the control valve to disconnect the connecting pipeline of the heat exchanger 1, so that high-temperature refrigerants cannot flow through the heat exchanger, and the refrigeration effect is prevented from being influenced by overhigh temperature.
The control valve 1 is a switch valve or a flow regulating valve, and can regulate temperature more accurately when being used as the flow regulating valve, so that temperature fluctuation is reduced.
In a specific embodiment, as shown in fig. 2 to 5, the refrigerating air duct 2 includes a main air duct 21 extending from bottom to top, and a plurality of branch air ducts 22 connected to the ends of the main air duct 21, the heat exchanger 1 is disposed in the main air duct 21, so that the main air duct 21 serves as a heat exchange cavity, the branch air ducts 22 are provided with a plurality of refrigerating air outlets 23 communicating with the refrigerating chamber, the main air duct 21 extends from bottom to top to the top area of the refrigerator, and the branch air ducts 22 extend laterally for a distance and then extend downward. The installation space of the heat exchanger can be ensured, and the air temperature of the air duct is uniform and the temperature fluctuation is small.
The utility model also provides a refrigerator, as shown in fig. 6, which specifically comprises a compressor 51, a condenser 52, a filter, a capillary tube and an evaporator 53 which are sequentially communicated in a circulating manner through a heat exchange circulating pipeline, and the air channel structure.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. A refrigerator duct structure comprising: the refrigerating air duct is characterized in that a heat exchanger communicated with a heat exchange circulating pipeline of the refrigerator is arranged in the refrigerating air duct, and the heat exchanger is connected with a condenser of the refrigerator in parallel.
2. The air duct structure for a refrigerator according to claim 1, further comprising: the control valve is arranged on a connecting pipeline of the heat exchanger, the temperature sensor is used for detecting the temperature of air passing through the heat exchanger in the refrigerating air duct, and the controller of the heat exchanger is switched on and off according to the air temperature control valve.
3. The air duct structure for the refrigerator according to claim 2, wherein the controller opens the control valve to communicate with the connection duct of the heat exchanger when the air temperature is lower than a preset temperature.
4. The air duct structure for the refrigerator according to claim 2, wherein the controller closes the control valve to disconnect the connection duct of the heat exchanger when the air temperature is higher than a preset temperature.
5. The air duct structure for the refrigerator according to claim 2, wherein the control valve simultaneously communicates the inlet duct of the condenser with the connection duct of the heat exchanger, and the inlet duct of the condenser and the connection duct of the heat exchanger can be disconnected.
6. The air duct structure for the refrigerator according to claim 2, wherein the control valve is an on-off valve or a flow regulating valve.
7. The air duct structure for the refrigerator according to claim 1, wherein the heat exchanger is a condensing coil.
8. The air duct structure of the refrigerator according to claim 1, wherein the refrigerating air duct includes a main air duct extending from bottom to top, and a plurality of branch air ducts connected to ends of the main air duct, the heat exchanger is disposed in the main air duct, and the branch air ducts are provided with a plurality of refrigerating air outlets communicating with the refrigerating chamber.
9. The air duct structure for the refrigerator according to claim 8, wherein the main air duct extends from below to above to a top area of the refrigerator, and the branch air duct extends laterally for a distance and then extends downward.
10. A refrigerator comprising the air duct structure for a refrigerator according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122528594.1U CN216048597U (en) | 2021-10-20 | 2021-10-20 | Refrigerator air duct structure and refrigerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122528594.1U CN216048597U (en) | 2021-10-20 | 2021-10-20 | Refrigerator air duct structure and refrigerator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216048597U true CN216048597U (en) | 2022-03-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122528594.1U Active CN216048597U (en) | 2021-10-20 | 2021-10-20 | Refrigerator air duct structure and refrigerator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216048597U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113899137A (en) * | 2021-10-20 | 2022-01-07 | 珠海格力电器股份有限公司 | Refrigerator air duct structure and refrigerator |
-
2021
- 2021-10-20 CN CN202122528594.1U patent/CN216048597U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113899137A (en) * | 2021-10-20 | 2022-01-07 | 珠海格力电器股份有限公司 | Refrigerator air duct structure and refrigerator |
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