CN209541255U - A kind of frostless refrigeration system of refrigerator - Google Patents
A kind of frostless refrigeration system of refrigerator Download PDFInfo
- Publication number
- CN209541255U CN209541255U CN201821872161.XU CN201821872161U CN209541255U CN 209541255 U CN209541255 U CN 209541255U CN 201821872161 U CN201821872161 U CN 201821872161U CN 209541255 U CN209541255 U CN 209541255U
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- CN
- China
- Prior art keywords
- solenoid valve
- defrost
- compressor
- evaporator
- refrigerator
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
The utility model discloses a kind of frostless refrigeration systems of refrigerator, by solenoid valve block to multiple evaporators and defrost capillary paralleling, and increase solenoid valve branch between compressor and condenser.Security appliance risk is avoided to substitute traditional electric heater to the defrost in turn and shutdown pressure maintaining of evaporator by the control realization to solenoid valve block.
Description
Technical field
The utility model belongs to household appliance technical field, and in particular to a kind of frostless refrigeration system of refrigerator.
Background technique
For current frost-free refrigerator by compressor-condenser-capillary-evaporator-compressor cycle refrigeration, evaporator is logical
Often connection electric heating system is used for defrost, and compressor stops during defrost, and only electric heater works, on the temperature inside the box is bound to
It rises.Electric heater is closed in the case, and local temperature rapidly increases after unlatching, surrounding sponge, foam, plastic part also rapidly by
There is deformation even fire hazard in heat.The refrigerant (R600A) that electric heater is directly contacted with evaporator, and flowed in evaporator
Once leaking, contacted in confined space with high temperature heater (HTH), there is the security risk that may be exploded.
Utility model content
The purpose of the utility model is to provide a kind of frostless refrigeration system of refrigerator, each evaporation is may be implemented in this refrigeration system
The independent defrost of device.
In order to solve the above-mentioned technical problem, the technical scheme adopted by the utility model is
A kind of frostless refrigeration system of refrigerator, including compressor, solenoid valve and condensation group；
The outlet of compressor is connected to the entrance of the first solenoid valve, and the first outlet of the first solenoid valve is connected to condensation group,
The second outlet of first solenoid valve is connected to the entrance of second solenoid valve；
Condenser, filter and refrigerating capillary are connected in condensation group；It is connected with the outlet of the first solenoid valve；
Multiple outlets of second solenoid valve are connect at least two evaporator groups or defrost capillary respectively, and at least two steam
The other end of hair device group and defrost capillary is connect with third solenoid valve block；At least two evaporator groups and defrost capillary are simultaneously
Connection；
Wherein one end is connect third solenoid valve with liquid storage device, and the other end of liquid storage device is connect with compressor.
Preferably, the switch of compressor is controlled by the temperature of refrigerator.
This refrigeration system has the defrost period, and the defrost period is by compressor operating time, the switch gate time of refrigerator, evaporator
It is opened after the triggering of the setting conditions such as temperature；Within the defrost period, the on-off by controlling solenoid valve makes refrigerant from compressor stream
Enter and carry out defrost in the evaporator to defrost, although flowing into another evaporator refrigeration again after defrost capillary.
Compared with prior art, the utility model is not necessarily to electric heater, the independent defrost of each evaporator may be implemented, single
Evaporator defrost when, compressor is kept it turning on, other evaporators are still freezing, and the temperature inside the box during defrost is avoided to go up.
Detailed description of the invention
Fig. 1 is the refrigerating state figure of the frostless refrigeration system of the utility model refrigerator；
Fig. 2 is the defrost state diagram of the frostless refrigeration system of the utility model refrigerator；
Fig. 3 is the shutdown status figure of the frostless refrigeration system of the utility model refrigerator；
Fig. 4 is the structural schematic diagram of the frostless refrigeration system of the utility model refrigerator；
Fig. 5 is the control flow chart of the frostless refrigeration system of the utility model refrigerator.
In figure: 1- compressor；The first solenoid valve of 2-；3- condenser；4- filter；5- refrigerating capillary；The second electromagnetism of 6-
Valve；The first evaporator of 7-；8- defrost capillary；The second evaporator of 9-；10- third solenoid valve；11- liquid storage device.
Specific embodiment
The utility model is described in further detail in the following with reference to the drawings and specific embodiments, so that those skilled in the art can
To better understand the utility model and can be practiced, but illustrated embodiment is not as the restriction to the utility model.
Refrigerant in the utility model uses R600A, and other refrigerants also can be used.The refrigeration capillary of the utility model
Existing brass/Red-copper Capillary Tube or other symbols can be used in the not larger difference of the structure of pipe 5 and defrost capillary 8
The capillary of refrigeration standard is closed, prefix is only intended to distinguish the two.Other components of the utility model, such as compressor
1, the common component in current refrigerator field can be used in solenoid valve, condenser 3 and filter 4.
The structure of this system is as shown in Figure 4:
From compressor 1, the outlet of compressor 1 is connected to the 2A of the first solenoid valve 2, and there are also 2B and 2C for the first solenoid valve 2
Mouthful, wherein directly it is connect with the 6A of second solenoid valve 6 mouth for 2C mouthfuls, and 2B mouthfuls are then connected with condenser 3, filter 4 and system in turn
Cold capillary 5；
In order to describe conveniently, the second solenoid valve 6 in Fig. 4 only has 4 mouths, wherein 6B mouthfuls of the first evaporators 7 of connection, and 6C mouthfuls
It is connected with defrost capillary 8,6D mouthfuls of the second evaporators 9 of connection；First evaporator, 7 other end is connected in 10B, likewise, changing
White capillary 8 is connected to 10A, the second evaporator 9 is connected to 10D.In fact, second solenoid valve 6 can have multiple and different companies
Interface, 5,6,7 or greater number, the actual demand in view of refrigerator is needed, each outlet of second solenoid valve 6 is divided equally
Do not connected from different evaporators or defrost capillary 8, and the other end of corresponding evaporator and defrost capillary 8 respectively with it is corresponding
The different connectors of the third solenoid valve 10 of quantity connect one by one, so that different evaporator and defrost capillary are mutually to be in parallel
State.
The 10C mouth of third solenoid valve 10 is then connect with liquid storage device 11, and liquid storage device 11 connect to form entire closed loop with compressor 1
Connection.
Control flow such as Fig. 5 in this refrigeration system actual motion:
Solenoid valve (group) is adjusted to refrigeration mode when compressor 1 starts, and adjusts solenoid valve block if reaching halt condition
For pressure maintaining mode, refrigerant is avoided to continue to flow.And compressor 1 is in the process of running, and if having reached the defrost period, the defrost period
By triggerings such as the setting conditions such as compressor operating time, the switch gate time of refrigerator, evaporator temperature；Then solenoid valve block is adjusted
For the defrost pattern of the first evaporator 7, the first evaporator 7 is used as condensing plant and carries out defrost, while the second evaporator 9
Continue to freeze.After first evaporator, 7 defrost, solenoid valve (group) reverts to refrigeration mode, when the second evaporator 9 postpones one section
Between after enter defrost pattern, restore refrigeration mode after the completion.
Embodiment one
As shown in Figure 1, this system, in refrigerating state, 2A and 2B mouthfuls of the first solenoid valve 2 are opened, it is ensured that refrigerant flows through cold
Condenser 3 and refrigerating capillary 5；6A, 6B, 6D mouth of second solenoid valve 6 are opened, and 10B, 10C, 10D of third solenoid valve 10 are opened；
Refrigerant after guaranteeing throttling flows separately through the first evaporator 7 and the second evaporator 9 refrigeration, finally returns to compression via liquid storage device 11
Machine 11.
Embodiment 2
As shown in Fig. 2, this system is in defrost state, 2A, 2C mouth of the first solenoid valve 2 are opened, and refrigerant is directly entered the
The 6A mouth of two solenoid valves 6, refrigerant is the high temperature condition of high temperature at this time, by 6B mouthfuls of the first evaporators 7 of inflow, the first evaporator 7 this
Shi Zuowei condensing plant uses, and the refrigerant of high temperature and pressure melts the frost layer on its surface；The refrigerant warp come out from the first evaporator 7
Cross the 10B mouth of third solenoid valve 10 and 10A mouthfuls enter in defrost capillary 8 and throttle, after 6C mouth by second solenoid valve 6 and
6D mouthfuls of the second evaporators 9 of inflow refrigeration, the most 10D afterwards through third solenoid valve 10 and 10C mouthfuls, liquid storage device 11 return in compressor 1.
By controlling the on-off of each each mouth of solenoid valve, can also be the defrost for realizing the second evaporator 9 while keeping first to steam
Hair device 7 continues to freeze.
Embodiment 3
As shown in figure 3, the system is in shutdown status, and 2A, 2B of the first solenoid valve of relationship 2, the 6A of second solenoid valve 6
Mouthful, so that the refrigerant of high temperature and pressure is stored in condenser 3, when compressor 1 is again turned on, system is high without obtaining again
Pressure realizes the energy-efficient effect of pressure maintaining.
The above embodiments of the present invention is not the restriction to scope of protection of the utility model, the reality of the utility model
It is without being limited thereto to apply mode, all this kind above content according to the present utility model, according to the ordinary technical knowledge of this field and used
With means, under the premise of not departing from the utility model above-mentioned basic fundamental thought, the utility model above structure is made its
The modification, replacement or change of its diversified forms, shall fall within the scope of the present invention.
Claims (2)
1. a kind of frostless refrigeration system of refrigerator, it is characterised in that: including compressor, solenoid valve and condensation group；
The outlet of the compressor is connected to the entrance of the first solenoid valve, and the first outlet of the first solenoid valve is connected to condensation group,
The second outlet of first solenoid valve is connected to the entrance of second solenoid valve；
Condenser, filter and refrigerating capillary are connected in the condensation group；It is connected with the outlet of the first solenoid valve；
Multiple outlets of the second solenoid valve are connect at least two evaporator groups or defrost capillary respectively, and at least two steam
The other end of hair device group and defrost capillary is connect with third solenoid valve block；At least two evaporator groups and defrost capillary are simultaneously
Connection；
The third solenoid valve is wherein connect one end with liquid storage device, and the other end of liquid storage device is connect with compressor.
2. the frostless refrigeration system of refrigerator according to claim 1, it is characterised in that: the switch of the compressor is by refrigerator
Temperature control.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821872161.XU CN209541255U (en) | 2018-11-13 | 2018-11-13 | A kind of frostless refrigeration system of refrigerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821872161.XU CN209541255U (en) | 2018-11-13 | 2018-11-13 | A kind of frostless refrigeration system of refrigerator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209541255U true CN209541255U (en) | 2019-10-25 |
Family
ID=68248322
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821872161.XU Expired - Fee Related CN209541255U (en) | 2018-11-13 | 2018-11-13 | A kind of frostless refrigeration system of refrigerator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209541255U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023273706A1 (en) * | 2021-06-29 | 2023-01-05 | 青岛海尔电冰箱有限公司 | Refrigerating and freezing apparatus |
-
2018
- 2018-11-13 CN CN201821872161.XU patent/CN209541255U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023273706A1 (en) * | 2021-06-29 | 2023-01-05 | 青岛海尔电冰箱有限公司 | Refrigerating and freezing apparatus |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191025 Termination date: 20211113 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |