CN219494437U - Refrigerator with a refrigerator body - Google Patents
Refrigerator with a refrigerator body Download PDFInfo
- Publication number
- CN219494437U CN219494437U CN202223419769.6U CN202223419769U CN219494437U CN 219494437 U CN219494437 U CN 219494437U CN 202223419769 U CN202223419769 U CN 202223419769U CN 219494437 U CN219494437 U CN 219494437U
- Authority
- CN
- China
- Prior art keywords
- evaporator
- refrigerating
- refrigerator
- refrigerating chamber
- humidity
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- 239000003507 refrigerant Substances 0.000 claims abstract description 21
- 239000007788 liquid Substances 0.000 claims abstract description 19
- 238000005057 refrigeration Methods 0.000 claims description 35
- 238000001816 cooling Methods 0.000 claims description 14
- 235000013305 food Nutrition 0.000 claims description 8
- 238000007710 freezing Methods 0.000 claims description 6
- 230000008014 freezing Effects 0.000 claims description 6
- 238000005192 partition Methods 0.000 claims description 4
- 238000000034 method Methods 0.000 description 6
- 230000001276 controlling effect Effects 0.000 description 4
- 230000005494 condensation Effects 0.000 description 2
- 238000009833 condensation Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000638 solvent extraction Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 235000013311 vegetables Nutrition 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
Landscapes
- Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)
- Devices That Are Associated With Refrigeration Equipment (AREA)
Abstract
The utility model discloses a refrigerator which adopts a self-overlapping system and comprises a gas-liquid separator, wherein low-boiling-point refrigerants separated by the gas-liquid separator are subjected to heat exchange by a condensing evaporator and a third throttling device, high-boiling-point refrigerants separated by the gas-liquid separator are converged with the low-boiling-point refrigerants through an electronic switching valve after passing through a first branch and/or a second branch, enter the condensing evaporator for heat exchange, and then return to a compressor for circulation. The utility model can regulate the humidity in a large range on the premise of meeting the requirements of the refrigerating room of the refrigerator, and meet the requirements of high, medium and low humidity in the refrigerating room.
Description
Technical Field
The utility model relates to the technical field of refrigeration, in particular to a refrigerator capable of intelligently controlling temperature and humidity.
Background
With the improvement of the living standard of people, the simple temperature control and the partitioning of the refrigerator products can not meet the diversified and personalized food storage demands of consumers. Aiming at the problem, multi-system refrigerators and vacuum air-conditioning fresh-keeping refrigerators on the market are generated. These refrigerators can meet the food storage needs of customers to some extent, but still have the following problems:
1. the structure is complex, and the cost is high. In order to meet the humidity control requirement, the additional addition of the humidifying and dehumidifying device on the refrigerator product not only can lead to complex structure and compressed usable space of the compartment and increase the cost of the refrigerator, but also can lead to the reduction of the reliability of the refrigerator by increasing the device.
2. The requirements of large-scale temperature and humidity control cannot be met at the same time. The evaporating temperature of the refrigerating chamber of the multi-system refrigerator on the market is too low relative to that of vegetables and fruits, and meanwhile, the air cooling mode is difficult to meet the storage requirement of high humidity.
Disclosure of Invention
The utility model provides a refrigerator capable of intelligently controlling temperature and humidity, which aims to solve the technical problems that in the prior art, a humidifying and dehumidifying device is additionally arranged, so that the structure is complex, the cost is high, and the large-range temperature and humidity control cannot be simultaneously realized.
The refrigerator provided by the utility model adopts a self-overlapping system, and comprises a gas-liquid separator, wherein low-boiling-point refrigerant separated by the gas-liquid separator is subjected to heat exchange by a condensing evaporator and a third throttling device, and high-boiling-point refrigerant separated by the gas-liquid separator is subjected to heat exchange by an electronic switching valve, and then is converged with low-boiling-point refrigerant by a first branch and/or a second branch to enter the condensing evaporator for heat exchange, and is returned to a compressor for circulation.
Preferably, the first branch is provided with a first throttling device, and the second branch is provided with a second throttling device, a first refrigeration evaporator and a second refrigeration evaporator in sequence.
Preferably, the first refrigeration evaporator adopts a direct cooling type evaporator and is positioned at the lower part of the refrigeration chamber, and the second refrigeration evaporator is positioned at the upper part of the refrigeration chamber, adopts a fin type evaporator and is provided with a refrigeration fan.
Further, an internal circulation fan is arranged at the lower part of the refrigerating chamber and used for sending wind at the upper part of the refrigerating chamber to the lower part.
Further, the refrigerating chamber further comprises a refrigerating mask, and the first refrigerating evaporator, the second refrigerating evaporator, the refrigerating fan and the internal circulating fan are all arranged behind the refrigerating mask.
Further, a partition plate is arranged between the first refrigeration evaporator and the second refrigeration evaporator, and the internal circulation fan is communicated with the upper part of the refrigeration chamber through an air duct.
Preferably, the first throttling device, the second throttling device and the third throttling device all adopt electronic expansion valves.
Preferably, the zeotropic refrigerant employed in the self-cascade system is a mixture of R600a and R32.
The control method of the refrigerator provided by the utility model comprises the following steps: when the refrigerating chamber has high humidity demand, the first refrigerating evaporator is adopted for cooling; when the refrigerating chamber has low or no humidity requirement, the second refrigerating evaporator is adopted for cooling; when the refrigerating chamber has medium humidity requirement, the first refrigerating evaporator and the second refrigerating evaporator are adopted to jointly supply cold, and the relatively high-temperature low-humidity air blown out from the upper part of the refrigerating chamber is mixed with the low-temperature high-humidity air at the lower part of the refrigerating chamber, so that the temperature and humidity requirement of the refrigerating chamber is met.
Compared with the prior art, the refrigerator with the intelligent temperature and humidity control and the control method thereof have the advantages that an additional humidifying and dehumidifying device is not needed to be added to a refrigerator product, the structure is simple, the humidity can be adjusted in a large range on the premise that the temperature requirement of a refrigerating chamber is met, and the requirements of high, medium and low humidity in the refrigerating chamber are met.
Drawings
The utility model will be described in detail below with reference to the attached drawing figures and specific examples, wherein:
FIG. 1 is a schematic diagram of a refrigerator self-stacking system according to the present utility model;
fig. 2 is a schematic view of a refrigerating chamber of a refrigerator according to the present utility model;
fig. 3 is a control flow chart of the refrigerator of the present utility model.
Wherein: a compressor 1, a condenser 2, a gas-liquid separator 3, an electronic switching valve 4, a first throttling device 5, a second throttling device 6, a first temperature sensor 7, a first refrigeration evaporator 8, a second refrigeration evaporator 9, a second temperature sensor 10, a third throttling device 11, a freezing evaporator 12, a condensation evaporator 13, a refrigeration mask 14, a partition 15, a refrigeration chamber 16, an internal circulation fan 17 and a refrigeration fan 18.
Detailed Description
In order to make the objects, technical solutions and advantages of the present utility model more apparent, the present utility model will be described in detail with reference to the accompanying drawings and examples. It should be understood that the following specific examples are given by way of illustration only and are not intended to be limiting.
The self-cascade refrigeration cycle is a mode of dividing a larger total temperature difference into two or more sections, selecting proper refrigerant circulation according to the temperature area of each section, superposing the sections, and using the refrigerating capacity of a high-temperature stage to bear the condensing load of a low-temperature stage so as to obtain a lower refrigerating temperature.
The utility model applies the non-azeotropic self-overlapping system to the refrigerator to achieve the purpose of adjusting the humidity of the refrigerating chamber in a large range. As shown in fig. 1, the refrigerator provided by the utility model comprises a compressor 1, a condenser 2 and a gas-liquid separator 3 which are communicated through pipelines, wherein the bottom of the gas-liquid separator is communicated with an electronic switching valve 4 through a pipeline, the electronic switching valve 4 is controllably communicated with a first branch 19 and a second branch 20 which are connected in parallel, the first branch is provided with a first throttling device 5, and the second branch is sequentially provided with a second throttling device 6, a first refrigeration evaporator 8 and a second refrigeration evaporator 9. The upper part of the gas-liquid separator 3 is communicated with the condensing evaporator 13, the third throttling device 11 and the freezing evaporator 12 in sequence through a third branch 21. The high-boiling-point refrigerant separated by the gas-liquid separator is converged with the low-boiling-point refrigerant from the freezing evaporator 12 through the first branch 19 and/or the second branch 20, enters the condensing evaporator 13 for heat exchange, and then returns to the compressor 1 for circulation.
Fig. 2 is a schematic view of a refrigerating chamber of a refrigerator according to the present utility model. The first refrigeration evaporator 8 is a direct-cooling type evaporator and is positioned at the lower part of the refrigeration chamber 16, and the second refrigeration evaporator 9 is a fin type air-cooling type evaporator and is provided with a refrigeration fan 18 and is positioned at the upper part of the refrigeration chamber. The lower part of the refrigerating chamber is provided with an internal circulating fan 17 which is used for sending the air at the upper part of the refrigerating chamber to the lower part and exchanging heat with the first evaporator setting part.
The side of the refrigerating compartment facing the door is also provided with a refrigerating face mask 14, behind which the first refrigerating evaporator 8, the second refrigerating evaporator 9, the refrigerating fan 18 and the internal circulation fan 17 are arranged. A partition plate 15 is arranged between the first refrigeration heat exchanger 8 and the second refrigeration heat exchanger 9, and the internal circulation fan is communicated with the upper part of the refrigeration chamber through an air duct.
In this embodiment, the first throttle device, the second throttle device and the third throttle device all use electronic expansion valves. The non-azeotropic refrigerant is a mixture of R600a and R32.
During operation, high-temperature and high-pressure gas discharged by the compressor 1 is sent to the condenser 2, and condensed liquid refrigerant enters the gas-liquid separator 3, wherein the high-boiling-point liquid refrigerant flows from the lower part of the gas-liquid separator 3 to the electronic switching valve 4, and the electronic switching valve controls the on-off of the first branch 19 and the second branch 20 according to specific conditions. The first branch is mainly used for adjusting the amount of the refrigerant entering the second branch, and has a bypass function, and when the refrigerator only has the refrigerating requirement of the freezing chamber and the refrigerating chamber has no refrigerating requirement, the electronic switching valve 4 is switched to the first branch. The refrigerant flowing into the second branch is throttled by the second throttling device 6, exchanges heat with air in the first refrigeration heat exchanger 8 and the second refrigeration heat exchanger 9 in sequence, and then merges with the refrigerant passing through the first throttling device 5 to flow into the condensation evaporator 13. The gaseous low-boiling-point refrigerant separated from the upper part of the gas-liquid separator 3 passes through the condensing evaporator 13 on the third branch path 21 and the third throttling device 11 to the freezing evaporator 12 for heat exchange, then is converged with the high-boiling-point refrigerant from the first branch path and the second branch path to enter the condensing evaporator 13, and returns to the compressor after heat exchange.
The control method provided by the utility model can be used for adjusting the humidity of the refrigerating chamber in a large range: when the refrigerating chamber has high humidity demand, the refrigerating fan does not operate, and the internal circulation fan operates, so that the refrigerating chamber is cooled in a direct cooling mode, namely, the refrigerating chamber is cooled through the first refrigerating evaporator; when the refrigerating chamber has low or no humidity requirement, the internal circulation fan does not operate, and the refrigerating fan operates, so that the refrigerating chamber is cooled by air; when the refrigerating chamber has medium humidity demand, the refrigerating fan and the internal circulation fan are operated, and the relatively high-temperature low-humidity air blown out from the refrigerating fan is mixed with the low-temperature high-humidity air subjected to heat exchange at the first refrigerating evaporator part at the lower part according to a certain proportion, so that the temperature demand and the medium humidity demand of the refrigerating chamber can be met.
Fig. 2 is a flowchart of a method for controlling a self-stacking system according to the present utility model, which specifically includes the following working conditions:
firstly, obtaining a target temperature To and a target humidity phi o;
when the refrigerating chamber has no humidity requirement or low humidity requirement and has temperature requirement, the internal circulation fan 17 is closed, the refrigerating fan 18 is opened, the rotating speed R1 of the refrigerating fan is adjusted, the opening degree of the second throttling device 6 is adjusted, the temperature T2 of the second temperature sensor of the second refrigerating evaporator 9 meets T2=to-deltat 1, the cooling mode is air cooling at the moment, the refrigerating chamber can be kept in a low humidity state, and meanwhile, the temperature requirement of the refrigerating chamber can be met by virtue of the start and stop of the fan;
when the refrigerating chamber has temperature requirements and high humidity requirements, the opening degree of the second throttling device 6 is regulated, so that the temperature T1 of the first temperature sensor of the first refrigerating evaporator 8 meets T1=to-deltat 2, the temperature T2 of the temperature sensor of the second refrigerating evaporator 9 meets T2 which is less than or equal To-deltat 3, meanwhile, the refrigerating fan 18 is closed, the internal circulating fan 17 is started, and the cooling mode is direct cooling, so that the high humidity state of the refrigerating chamber can be kept, and meanwhile, the temperature requirements of the refrigerating chamber are met;
when the refrigerating compartment has both a temperature requirement and a moderate humidity requirement, the refrigerating fan 18 and the internal circulation air are turned onA machine 17 for finding a target state point on the psychrometric chart from the target temperature To and the target humidity phi o, obtaining a dew point temperature TL along the constant moisture content do line, and adjusting the opening of the second throttling device To make the first temperature sensor temperature T1 satisfy T 1 ＝T L -Δt 4 The method comprises the steps of carrying out a first treatment on the surface of the Obtaining the required air supply temperature Ts and air quantity according to the target state point and the dew point temperature TL, and regulating the rotating speed R2 of the refrigerating fan to enable T to be the same 2 ＝Ts-Δt 5 . At this time, the low-temperature and high-humidity air near the first refrigeration evaporator 8 and the high-temperature and low-humidity air blown out by the air-cooled second refrigeration evaporator are mixed according to a certain proportion, so as to meet the temperature and humidity requirements of the refrigeration chamber.
By using the self-overlapping refrigerator system and the control method for intelligently controlling the temperature and the humidity, provided by the utility model, the requirements of high, medium and low humidity of a compartment can be met on the premise of meeting the temperature requirement of a refrigerating compartment.
The foregoing is only a specific embodiment of the utility model. It should be noted that any modifications, equivalent substitutions and variations made within the spirit and scope of the inventive concept should be included in the scope of the present utility model.
Claims (8)
1. The refrigerator is characterized in that the refrigerator adopts a self-overlapping system and comprises a gas-liquid separator, the low-boiling-point refrigerant separated by the gas-liquid separator is subjected to heat exchange to a freezing evaporator through a condensing evaporator and a third throttling device, and the high-boiling-point refrigerant separated by the gas-liquid separator is converged with the low-boiling-point refrigerant through an electronic switching valve after passing through a first branch and/or a second branch to enter the condensing evaporator for heat exchange, and then returns to a compressor for circulation.
2. The refrigerator of claim 1, wherein the first branch is provided with a first throttling device, and the second branch is provided with a second throttling device, a first refrigeration evaporator and a second refrigeration evaporator in sequence.
3. The refrigerator as claimed in claim 2, wherein the first refrigerating evaporator is a direct-cooling type evaporator provided at a lower portion of the refrigerating compartment, and the second refrigerating evaporator is provided at an upper portion of the refrigerating compartment, and a fin type evaporator is provided with a refrigerating fan.
4. The refrigerator as claimed in claim 3, wherein the lower portion of the refrigerating chamber is provided with an internal circulation fan for directing wind of the upper portion of the refrigerating chamber to the lower portion.
5. The refrigerator as claimed in claim 4, wherein the fresh food compartment further includes a fresh food mask, and the first fresh food evaporator, the second fresh food evaporator, the fresh food fan, and the internal circulation fan are all disposed behind the fresh food mask.
6. The refrigerator as claimed in claim 5, wherein a partition is provided between the first and second refrigerating evaporators, and the internal circulation fan is communicated with an upper portion of the refrigerating chamber through an air duct.
7. The refrigerator of claim 2, wherein said first throttle means, said second throttle means and said third throttle means each employ an electronic expansion valve.
8. The refrigerator as claimed in any one of claims 1 to 7, wherein the first refrigeration evaporator is used for cooling when the refrigerating chamber has a high humidity demand; when the refrigerating chamber has low or no humidity requirement, the second refrigerating evaporator is adopted for cooling; when the refrigerating chamber has medium humidity requirement, the first refrigerating evaporator and the second refrigerating evaporator are adopted to jointly supply cold, and the relatively high-temperature low-humidity air blown out from the upper part of the refrigerating chamber is mixed with the low-temperature high-humidity air at the lower part of the refrigerating chamber, so that the temperature and humidity requirement of the refrigerating chamber is met.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223419769.6U CN219494437U (en) | 2022-12-20 | 2022-12-20 | Refrigerator with a refrigerator body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223419769.6U CN219494437U (en) | 2022-12-20 | 2022-12-20 | Refrigerator with a refrigerator body |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219494437U true CN219494437U (en) | 2023-08-08 |
Family
ID=87511852
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223419769.6U Active CN219494437U (en) | 2022-12-20 | 2022-12-20 | Refrigerator with a refrigerator body |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219494437U (en) |
-
2022
- 2022-12-20 CN CN202223419769.6U patent/CN219494437U/en active Active
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |