CN201748697U - Mechanical temperature control refrigerator - Google Patents
Mechanical temperature control refrigerator Download PDFInfo
- Publication number
- CN201748697U CN201748697U CN2010202690704U CN201020269070U CN201748697U CN 201748697 U CN201748697 U CN 201748697U CN 2010202690704 U CN2010202690704 U CN 2010202690704U CN 201020269070 U CN201020269070 U CN 201020269070U CN 201748697 U CN201748697 U CN 201748697U
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- CN
- China
- Prior art keywords
- refrigerating chamber
- throttling
- evaporator
- evaporation
- throttle
- Prior art date
- 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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- 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
Abstract
The utility model discloses a mechanical temperature control refrigerator. A refrigerating system comprises a compressor, a condenser, a throttle evaporator of a refrigerating chamber and an evaporator of a freezing chamber which are sequentially and circularly communicated through a refrigerant pipeline, wherein the throttle evaporator of the refrigerating chamber comprises two parallel throttle evaporation units which are selectively communicated on the refrigerant pipeline; and the evaporation area of one throttle evaporation unit is greater than that of the other throttle evaporation unit. During the quick freezing, an electric heating device used for temperature compensation is not needed, therefore, the energy waste is avoided, the cold supply for the refrigerating chamber is unnecessarily stopped, and all the energy is used for the freezing chamber, and the normal use of the refrigerating chamber is not influenced. The utility model has the advantages of simple structure and convenient use.
Description
Technical field
The utility model relates to a kind of mechanical temperature-control refrigerator.
Background technology
The existing mechanical temperature control refrigerator mostly is the single round-robin system cooling system, and the evaporimeter of refrigerating chamber and refrigerating chamber adopts direct series connection form to be connected, and the cold of these two evaporimeters distributes and can't adjust.The mechanical thermostat of control compressor start-stop can only directly be controlled the temperature of refrigerating chamber, when refrigerating chamber is cooled to break point, and the outage of temperature controller control compressor, refrigerating chamber and refrigerating chamber stop refrigeration simultaneously.When refrigerating chamber needs more colds maybe to need the food snap frozen to needed low temperature because of putting into more food, because refrigerating chamber design temperature height, drop to the time weak point that design temperature needs, make that the compressor available machine time is few, cause the freezer evaporator cooling time short, can't reach the bigger refrigerating capacity of customer requirements, the food in the refrigerating chamber needs long time just can freeze.The required freeze-off time of food of putting into refrigerating chamber is long more, easily more causes the loss of food nutrition in this process.
A method of the above-mentioned snap frozen problem of solution commonly used is at present: increase the temperature-compensating electric heater unit near the mechanical thermostat of refrigerating chamber.When the user need be at refrigerating chamber snap frozen food, connect the temperature-compensating switch, the energising of temperature-compensating electric heater unit, slow down the cooling rate at the temperature-sensitive position of the mechanical thermostat in the refrigerating chamber, also, make refrigerating chamber can obtain the snap frozen of more cold realization to food with regard to the corresponding available machine time length that has prolonged compressor.Shortcoming is: can offset the refrigeration cold of part refrigerating chamber when the temperature-compensating electric heater unit of refrigerating chamber is switched on, cause energy waste; Electrical heating itself also will consume heating power, further strengthens energy waste.
Another method that solves above-mentioned snap frozen problem at present is: on condenser and the intercapillary path of refrigeration two-position three-way valve is set, the valve normality is for being communicated with condenser to refrigerating capillary; The valve another port connects freezing capillary, and the freezing capillary other end is communicated with the path between freezer evaporator and the refrigerator evaporator.When opening the fast freezing function switch, two-bit triplet valve state changes into and is communicated with condenser to freezing capillary, and refrigerating chamber stops refrigeration, and all colds all are used for refrigerating chamber.Shortcoming is: must freeze by closing cold room when refrigerating chamber is opened the quick-frozen function, cause temperature of refrigerating chamber to go up, the user can not normally use refrigerating chamber to store food again.
In a word, do not have at present to realize the refrigerating chamber fast-refrigerating, can not cause energy waste again, can not influence the normal mechanical temperature-control refrigerator that uses of refrigerating chamber yet.
The utility model content
The purpose of this utility model is to provide a kind of can either realize the refrigerating chamber fast-refrigerating, can not cause energy waste again, also can normally use the mechanical temperature-control refrigerator of refrigerating chamber when fast-refrigerating.
For achieving the above object, the utility model provides a kind of mechanical temperature-control refrigerator, its refrigeration system comprises compressor, condenser, refrigerating chamber throttling and evaporation device and the freezer evaporator that circulates successively and be communicated with by refrigerant line, described refrigerating chamber throttling and evaporation device comprises the throttling and evaporation unit of two parallel connections, described two throttling and evaporation unit are selected to be communicated with on refrigerant line, and the disengagement area of one of them throttling and evaporation unit is greater than the disengagement area of another throttling and evaporation unit.
When not needing to open fast freezing function, make refrigerant line be communicated with the bigger throttling and evaporation unit of disengagement area, the refrigerating capacity of refrigerating chamber, refrigerating chamber is all identical with similar refrigerator at this moment; When needs are opened fast freezing function, make refrigerant line be communicated with the less throttling and evaporation unit of disengagement area, the less throttling and evaporation unit of disengagement area this moment provides cold for refrigerating chamber, thereby the cold that changes refrigerating chamber and refrigerating chamber distributes, and promptly reduces the cold of distributing to refrigerating chamber, the cold that refrigerating chamber is distributed in increase.After cold distribute to change, temperature of refrigerating chamber descended slack-off, thereby prolonged the available machine time of compressor, of compressor open-stop further increase supply in the cycle refrigerating chamber cold, strengthen the snap frozen ability of refrigerating chamber.In a word, the utility model both need not use the electric heater unit that is used for temperature-compensating when realizing fast freezing function, thereby avoid the waste of energy, need not stop the cooling of refrigerating chamber again and make whole colds all be used for refrigerating chamber, thereby do not influence the normal use of refrigerating chamber.The utility model is simple in structure, and is easy to use.
Described two throttling and evaporation unit are respectively the first throttle evaporation element and the second throttling and evaporation unit, the first throttle evaporation element comprises the first throttle device and first refrigerator evaporator that is cascaded, and the second throttling and evaporation unit comprises second throttling arrangement and second refrigerator evaporator that is cascaded; The import of the import of first throttle device and second throttling arrangement is selected to be communicated with on refrigerant line by two-position three-way valve, and the outlet of the outlet of first refrigerator evaporator and second refrigerator evaporator all is connected with the import of described freezer evaporator; The surface area of first refrigerator evaporator is greater than the surface area of second refrigerator evaporator.
The throttling and evaporation cellular construction is simple, is convenient to make.
Polyphone is provided with molecular sieve on the refrigerant line between described condenser and the described two-position three-way valve.
The setting of molecular sieve makes and the utlity model has the function of cold-producing medium being carried out dry filter, thereby improves the ability of the utility model long-term stable operation.
The described first throttle device and second throttling arrangement are capillary or pressure-reducing valve, and cost is lower, are convenient to make.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the refrigeration system schematic diagram of closing under the fast freezing function state;
Fig. 3 is the refrigeration system schematic diagram of opening under the fast freezing function state.
The specific embodiment
As shown in Figure 1, the utility model provides a kind of mechanical temperature-control refrigerator with fast freezing function, and its refrigeration system comprises compressor 101, condenser 102, molecular sieve 103, refrigerating chamber throttling and evaporation device and the freezer evaporator 110 that circulates successively and be communicated with by refrigerant line 100.
Described refrigerating chamber throttling and evaporation device comprises the first throttle evaporation element and the second throttling and evaporation unit that is arranged in parallel, the first throttle evaporation element comprises that the first throttle device 107 and first refrigerator evaporator, 108, the second throttling and evaporation unit that are cascaded comprise second throttling arrangement 105 and second refrigerator evaporator 106 that is cascaded; The import of the import of first throttle device 107 and second throttling arrangement 105 is selected to be communicated with on refrigerant line 100 by two-position three-way valve, specifically, two-position three-way valve 104 selects to be communicated with the first throttle device 107 or second throttling arrangement 105 by its first outlet 104A or the second outlet 104B, the import of two-position three-way valve 104 is connected with described molecular sieve 103 by refrigerant line 100, and molecular sieve 103 is connected with condenser 102; The outlet of the outlet of first refrigerator evaporator 108 and second refrigerator evaporator 106 converges the back through threeway 109 and all is connected with the import of described freezer evaporator; Specifically, first refrigerator evaporator 108 is connected with the first import 109A of triple valve 109, second throttling arrangement 105 is connected with the second import 109B of triple valve 109 by second refrigerator evaporator 106, and the outlet 109C of triple valve 109 is connected with described freezer evaporator 110; Wherein, the surface area of first refrigerator evaporator 108 is greater than the surface area of second refrigerator evaporator 106; First throttle device 107, second throttling arrangement 105 can be capillaries, also can be pressure-reducing valves.
In the use, when not needing to open fast freezing function, as shown in Figure 2, make two-position three-way valve 104 select to be communicated with first throttle devices 107 (the first outlet 104A of two-position three-way valve 104 opens, the second outlet 104B close), this moment, the cyclic process of cold-producing medium was: the compressor 101-condenser 102-molecular sieve 103-first throttle device 107-first refrigerator evaporator 108-triple valve 109-freezer evaporator 110-compressor 101.In the above-mentioned cyclic process, bigger first refrigerator evaporator 108 of area is for refrigerating chamber provides cold, and the refrigerating chamber refrigerating capacity is identical with similar refrigerator with the refrigerating chamber refrigerating capacity; When needs are opened fast freezing function, as shown in Figure 3, make two-position three-way valve 104 select to be communicated with second throttling arrangement 105 (the second outlet 104B of two-position three-way valve 104 opens, the first outlet 104A close), this moment, the cyclic process of cold-producing medium was: the compressor 101-condenser 102-molecular sieve 103-second throttling arrangement 105-second refrigerator evaporator 106-triple valve 109-freezer evaporator 110-compressor 101.In the above-mentioned cyclic process, less second refrigerator evaporator 106 of area is for refrigerating chamber provides cold, thereby the cold that changes refrigerating chamber and refrigerating chamber distributes, and promptly reduces the cold of distributing to refrigerating chamber, increases the cold of distributing to refrigerating chamber.After cold distribute to change, temperature of refrigerating chamber descended slack-off, thereby prolonged the available machine time of compressor 101, of compressor 101 open-stop further increase supply in the cycle refrigerating chamber cold, strengthen the snap frozen ability of refrigerating chamber.
In a word, the utility model both need not use the electric heater unit that is used for temperature-compensating when realizing fast freezing function, thereby avoid the waste of energy, need not stop the cooling of refrigerating chamber again and make whole colds all be used for refrigerating chamber, thereby do not influence the normal use of refrigerating chamber.
Claims (4)
1. mechanical temperature-control refrigerator, its refrigeration system comprises compressor, condenser, refrigerating chamber throttling and evaporation device and the freezer evaporator that circulates successively and be communicated with by refrigerant line, it is characterized in that: described refrigerating chamber throttling and evaporation device comprises the throttling and evaporation unit of two parallel connections, described two throttling and evaporation unit are selected to be communicated with on refrigerant line, and the disengagement area of one of them throttling and evaporation unit is greater than the disengagement area of another throttling and evaporation unit.
2. mechanical temperature-control refrigerator according to claim 1, it is characterized in that: described two throttling and evaporation unit are respectively the first throttle evaporation element and the second throttling and evaporation unit, the first throttle evaporation element comprises the first throttle device and first refrigerator evaporator that is cascaded, and the second throttling and evaporation unit comprises second throttling arrangement and second refrigerator evaporator that is cascaded; The import of the import of first throttle device and second throttling arrangement is selected to be communicated with on refrigerant line by two-position three-way valve, and the outlet of the outlet of first refrigerator evaporator and second refrigerator evaporator all is connected with the import of described freezer evaporator; The surface area of first refrigerator evaporator is greater than the surface area of second refrigerator evaporator.
3. mechanical temperature-control refrigerator according to claim 2 is characterized in that: polyphone is provided with molecular sieve on the refrigerant line between described condenser and the described two-position three-way valve.
4. according to claim 2 or 3 described mechanical temperature-control refrigerators, it is characterized in that: the described first throttle device and second throttling arrangement are capillary or pressure-reducing valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202690704U CN201748697U (en) | 2010-07-23 | 2010-07-23 | Mechanical temperature control refrigerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202690704U CN201748697U (en) | 2010-07-23 | 2010-07-23 | Mechanical temperature control refrigerator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201748697U true CN201748697U (en) | 2011-02-16 |
Family
ID=43583371
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202690704U Expired - Lifetime CN201748697U (en) | 2010-07-23 | 2010-07-23 | Mechanical temperature control refrigerator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201748697U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102121774A (en) * | 2011-03-30 | 2011-07-13 | 合肥美的荣事达电冰箱有限公司 | Refrigeration system and refrigerator with refrigeration system |
| CN104329822A (en) * | 2013-10-31 | 2015-02-04 | 海尔集团公司 | Refrigeration device |
| CN104344588A (en) * | 2013-10-31 | 2015-02-11 | 海尔集团公司 | Refrigerator cooling system and refrigerator employing same |
| CN108471694A (en) * | 2018-03-23 | 2018-08-31 | 深圳市英维克科技股份有限公司 | Subregion independent cooling temperature control device and temprature control method |
| CN108731369A (en) * | 2017-04-18 | 2018-11-02 | Bsh家用电器有限公司 | Refrigerating appliance and its operation method |
-
2010
- 2010-07-23 CN CN2010202690704U patent/CN201748697U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102121774A (en) * | 2011-03-30 | 2011-07-13 | 合肥美的荣事达电冰箱有限公司 | Refrigeration system and refrigerator with refrigeration system |
| CN104329822A (en) * | 2013-10-31 | 2015-02-04 | 海尔集团公司 | Refrigeration device |
| CN104344588A (en) * | 2013-10-31 | 2015-02-11 | 海尔集团公司 | Refrigerator cooling system and refrigerator employing same |
| CN108731369A (en) * | 2017-04-18 | 2018-11-02 | Bsh家用电器有限公司 | Refrigerating appliance and its operation method |
| CN108471694A (en) * | 2018-03-23 | 2018-08-31 | 深圳市英维克科技股份有限公司 | Subregion independent cooling temperature control device and temprature control method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110216 |
|
| CX01 | Expiry of patent term |