CN1427233A - Refrigerator capable of continuously cooling - Google Patents
Refrigerator capable of continuously cooling Download PDFInfo
- Publication number
- CN1427233A CN1427233A CN 01144433 CN01144433A CN1427233A CN 1427233 A CN1427233 A CN 1427233A CN 01144433 CN01144433 CN 01144433 CN 01144433 A CN01144433 A CN 01144433A CN 1427233 A CN1427233 A CN 1427233A
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- evaporimeter
- cold air
- refrigerator
- refrigeration
- continuously according
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Abstract
A refrigerator able to continuously refrigerate is composed of casing, cold air channel, two evaporators with own cold channels, the barrier for selectively cutting off one of their cold channels, fan for forcing circulation of cold air, and the defrosting heaters (one for each evaporator). When the cold air channel of an evaporator is cut off and the evaporator is defrosted, the other evaporator still works for refrigerating, so resulting in high refrigerating efficiency.
Description
One, technical field:
The present invention relates to a kind of refrigerator, specifically, relate to a kind of when eliminating the evaporation frosting refrigerating plant can continue to move and can continue the refrigerator of refrigeration.
Two, background technology:
Refrigerator is as a kind of refrigeration machine, makes by the circulation repeatedly to the compression-condensation-expansion-evaporation of refrigerant to keep low temperature in the refrigerator, makes the food in the case keep it fresh in the regular hour.The refrigerating circulation system of refrigerator mainly is made of compressor, condenser, expansion valve and evaporimeter; Compressor is that the cold media gas and the pound of high temperature, high pressure gone into condenser with the compressing refrigerant gas of low-temp low-pressure, owing to the effect of extraneous air is condensed into liquid refrigerant agent and through the expansion valve decompression and evaporate in evaporimeter under low-pressure state, thereby realize refrigeration.
As shown in Figure 1, refrigerator is broadly divided into refrigerating chamber and refrigerating chamber two parts.Refrigerating chamber 2 will suck through the cold gas of evaporimeter 4 heat exchanges, so that keep-18 ℃ temperature approximately in the refrigerating chamber 2, then keeps 0～7 ℃ temperature in the refrigerating chamber.The rear side below of refrigerating chamber 2 is provided with Machine Room 3.The rear of refrigerating chamber 2 is provided with air coolant tube 10, carries out heat exchange for high temperature cold air and refrigerant in refrigerating chamber 2 and refrigeration indoor circulation; Be provided with evaporimeter 4 and blowing fan 6 and motor in the air coolant tube 10, motor drives cold gas forced circulation in refrigerating chamber 2 that blowing fan 6 makes 4 heat exchanges of process evaporimeter.Casing 1 is divided into refrigerating chamber 2 and refrigerating chamber by the barrier layer (not shown), the barrier layer has many intercommunicating pores, so that refrigerating chamber 2 can freely exchange with the cold air of refrigerating chamber, after the cold air of refrigerating chamber 2 infeeded refrigerating chamber, the cold air of refrigerating chamber can enter air coolant tube 10 through refrigerating chamber 2.Compressor and condenser are installed in the Machine Room 3 and constitute refrigerating circulation system, also be provided with the heat emission fan sheet simultaneously, the heat that the heat that produces in the Machine Room that leaves with forced air supply, especially condenser produce with evaporimeter.The course of work of above-mentioned refrigerator is as follows.
Behind the controller (not shown) control compressor start, refrigerating circulation system is promptly started working and is formed heat exchange environment, become cold gas and send into refrigerating chamber 2 through the cold air after evaporimeter 4 heat exchanges by blowing fan 6, a part of cold air in the refrigerating chamber 2 enters refrigerating chamber through the intercommunicating pore on barrier layer, the cold air that becomes high temperature in refrigerating chamber 2 and refrigeration indoor circulation flows into air coolant tube 10 again through suction inlet 12, form circulating cold air.
In said process, at evaporimeter 4 frosting appears owing to the moisture of discharging from refrigerating box, and this frosting is an impediment to flowing of cold air, has reduced the effect of refrigeration, therefore promptly should defrost at regular intervals.For this reason, the periphery at evaporimeter 4 is provided with a plurality of Defrost heaters 15,17.Defrost heater is divided into contact Defrost heater 15 and contactless Defrost heater 17, and the former utilizes heat-conduction principle and heat is conducted to the tail fin of evaporimeter, and the latter and evaporimeter keep at a certain distance away and utilize heat radiation principle and heat is passed to evaporimeter; Refrigerator can adopt a kind of any one mode to defrost, and also can adopt the dual mode defrosting equally.During Defrost operation, Defrost heater will be switched on heating a period of time, heat is passed to evaporimeter 4 frost tied could be eliminated, and water receiving pipe and the water butt of white water through adding drains into outside the refrigerator or by refrigerator and evaporate voluntarily.
Yet during above-mentioned Defrost operation, refrigerating circulation system does not move, and compressor and blowing fan 6 do not turn round, and the circulation of cold air will temporarily be interrupted, and the temperature of refrigerator inside rises thereupon, and fresh-keeping will can not get of food ensures.Moreover, because the heat radiation of Defrost heater causes the temperature of refrigerator to rise, freeze cycle initial operating stage refrigeration duty subsequently increases, and cooling effect decreases.
Three, summary of the invention:
Purpose of the present invention promptly is to provide a kind of refrigerator of refrigeration continuously, makes it still can keep freeze cycle in defrost process, continue refrigeration, thereby improves cooling effect and the food people is imitated fresh-keeping.
To achieve these goals, the present invention utilizes casing and is arranged on cold air runner in the casing, two evaporimeters and windscreen and blowing fan constitutes a kind of refrigerator of refrigeration continuously.Two evaporimeters also are located in the cold air runner and are had independently runner separately, and the periphery of each evaporimeter is equipped with and utilizes heat conduction or radiation to eliminate the Defrost heater of frosting; Windscreen is installed in the cold wind runner of two evaporimeters and the alternative runner that opens and closes each evaporimeter; Blowing fan is installed in the top of cold air runner and can makes cold wind forced circulation in casing.
Based on above structure, when an evaporimeter is defrosted, can make the cold air path of another evaporimeter continue to keep freeze cycle, thereby make refrigerator continue refrigeration.
Be described in further detail below in conjunction with the technical characterictic of specific embodiment the refrigerator of the sustainable refrigeration of the present invention.
Four, description of drawings:
Fig. 1 is the structural representation of current refrigerator.
Fig. 2 is the present invention's structural representation of the refrigerator of refrigeration continuously.
Fig. 3 is the present invention's schematic diagram of the refrigerating circulation system of the refrigerator of refrigeration continuously.
Fig. 4 a, 4b are the cutaway view and the refrigerating circulation system schematic diagrames of a duty of the present invention.
Fig. 5 a, 5b are the cutaway view and the refrigerating circulation system schematic diagrames of another duty of the present invention.
Fig. 6 a, 6b are the cutaway view and the refrigerating circulation system schematic diagrames of the another duty of the present invention.
Five, the specific embodiment:
As shown in Figure 2, the present invention is provided with refrigerating chamber 2 in the refrigerator body 1 of refrigeration continuously, the rear of refrigerating chamber 2 is provided with air coolant tube 10 and constitutes the circulating cold air runner with refrigerating chamber 2, and the dividing plate 7 of air coolant tube 10 is provided with cold air air inlet 12 and cool air discharge ports 11.The barrier layer (not shown) that casing 1 utilizes heat insulation material to make is divided into refrigerating chamber 2 and refrigerating chamber, the barrier layer has many intercommunicating pores and refrigerating chamber is freely exchanged with the interior cold air of refrigerating chamber, cold air in the refrigerating chamber can flow into refrigerating chamber, and the cold air in the refrigerating chamber then can flow into air coolant tube 10 by refrigerating chamber.
In the air coolant tube 10 and be provided with two evaporimeter 24a, 24b, carry out heat exchange for high temperature cold air and refrigerant agent; The length of two evaporimeter 24a, 24b greatly much and by heat-barrier material is made.All be provided with contact Defrost heater 15a, 15b around two evaporimeter 24a, the 24b, thereunder also be provided with contactless Defrost heater 17a, 17b.The blowing fan 6 that is used to make cold air forced circulation in casing 1 is installed at 11 places of the cool air discharge ports above evaporimeter 24a, the 24b.
In air coolant tube 10, also be provided with the windscreen 40 that is used for optionally opening and closing evaporimeter 24a, 24b cold wind runner, with the cold air of evaporimeter one side of cutting off the defrosting running.For this reason, windscreen 40 can be made of hinge 41 and plate 42, and plate 42 can hinge be the cold air path that the center is rotated and cut off a side, and the length of plate 42 depends on the width of cold air runner.For above-mentioned two cold air runners, windscreen 40 can form three kinds of open forms, i.e. any one two kinds of open form and the form that both are open simultaneously in two cold air runners also are in the middle of plate 42 has, turn left 90 ° and the 90 ° of three kinds of change in location of turning right.Because what windscreen 40 cut off is the cold air runner of evaporimeter one side in the defrosting, so windscreen 40 should be installed on the lower end of division board 30.
Above-mentioned refrigerator is owing to being equipped with two evaporimeters, so its refrigerating circulation system is different with the refrigerating circulation system of general refrigerator.As shown in Figure 3, refrigerating circulation system of the present invention is made up of compressor 21, condenser 22, expansion valve 23 and evaporimeter 24a, 24b.Compressor 21 is the cold media gas of HTHP with the compressing refrigerant gas of low-temp low-pressure, condenser 22 utilizes extraneous air to make the condensation of HTHP cold media gas and by expansion valve 23 decompression, and evaporimeter 24a, 24b evaporate refrigerant agent and absorb heat in the casing under low-pressure state.
Also to be provided with a refrigerant agent control valve 25, two evaporimeter 24a, 24b be that the center connects side by side with this valve in the place ahead of evaporimeter 24 in the refrigerating circulation system of the present invention; Like this, control valve 25 can cut off the refrigerant agent of the evaporimeter in the defrosting, and whole refrigerant agents are offered the evaporimeter that carries out heat exchange.For this reason, above-mentioned control valve can adopt an energy to any one evaporimeter or the cross valve of refrigerant agent is provided to two evaporimeters simultaneously, promptly has the cross valve of an inlet and three outlets.As an embodiment, the control valve 25 among the present invention can adopt four way solenoid valve.
Fig. 4 a and Fig. 4 b are a duty cutaway view of the present invention and refrigerating circulation system figure, and evaporimeter 24a is the Defrost operation state.As shown in the figure, be to remove the frosting of evaporimeter 24a, with the plate 42 of windscreen 40 half-twist to the left, to cut off the cold air runner of evaporimeter 24a; Simultaneously, utilize cross valve 25 that the coolant tubes of evaporimeter 24a is cut off, all supply with evaporimeter 24b through the refrigerant agent of expansion valve 23.Then, the Defrost heater 15a, the 17a that connect evaporimeter 24a are to conduct heat to evaporimeter 24a, and the frosting on the evaporimeter 24a is eliminated thereupon.
On the other hand, circulation in refrigerating chamber and refrigerating chamber and the cold air that becomes high temperature is sent into air coolant tube 10 by blowing fan 6 through the cold air air inlet, through evaporimeter 24b and after becoming low temperature by cold gas exhausting outlet 11 rows to refrigerating chamber.At this moment, the cold air through evaporimeter 24b relies on division board 30 heat insulation with Defrost heater 15a, the 17a of evaporimeter 24a.Like this, row is to a part of cool-air feed refrigerating chamber of refrigerating chamber, afterwards, becomes the cold air of high temperature in refrigerating chamber and refrigeration indoor circulation, flows into air coolant tube 10 by air inlet once more and forms circulation.
Fig. 5 a and Fig. 5 b are that evaporimeter 24b is the working state figure and the refrigerating circulation system figure of Defrost operation among the present invention.As shown in the figure, windscreen 40 is half-twist to the right, to cut off the cold air runner of evaporimeter 24b; Simultaneously, utilize cross valve 25 to cut off the coolant tubes of evaporimeter 24b, all feed to evaporimeter 24a through the refrigerant agent of expansion valve 23.Then, connect Defrost heater 15b, the 17b power supply of evaporimeter 24b, to conduct heat to evaporimeter 24b, the frosting on the evaporimeter 24b is eliminated immediately.
On the other hand, circulation and the cold air that becomes high temperature are sent into air coolant tube 10 and through evaporimeter 24a heat absorption and become low temperature by blowing fan 6 through the cold air air inlet in refrigerating chamber and refrigerating chamber.At this moment, the flow through cold gas of evaporimeter 24a is heat insulation with Defrost heater 15b, the 17b of evaporimeter 24b by division board 30.Afterwards, cold gas is arranged to refrigerating chamber and in refrigerating chamber and refrigeration indoor circulation through outlet 11.
The present invention is owing to be provided with two evaporimeter 24a, 24b with independent cold air runner, therefore, when needs defrost to a certain evaporimeter, another evaporimeter still can be proceeded freeze cycle, thereby cooling in casing continuously, make to prevent heating because of Defrost heater that temperature raises in the casing.
When not needing to carry out Defrost operation, duty of the present invention and refrigerating circulation system are shown in Fig. 6 a, Fig. 6 b, and evaporimeter 24a, 24b all are in the state that carries out heat exchange with high temperature cold air.For this reason, the plate 42 of windscreen 40 mediates, and the cold air runner of evaporimeter 24a, 24b is opening; At this moment, cross valve 25 makes the coolant tubes of evaporimeter 24a, 24b open simultaneously, supplies with evaporimeter 24a, 24b simultaneously through the refrigerant agent of expansion valve 23.Obviously, Defrost heater 15b, the 17b of Defrost heater 15a, the 17a of evaporimeter 24a and evaporimeter 24b all do not work.Send into air coolant tube 10 by blowing fan 6 through the cold air air inlet at refrigerating chamber and the cold air that the refrigeration indoor circulation becomes high temperature, and through evaporimeter 24a, 24b heat absorption and become cold gas, cold gas through cold gas exhausting outlet 11 rows to refrigerating chamber and in refrigerating chamber and refrigeration indoor circulation.Because the cold air in the casing carries out heat exchange by two evaporimeter 24a, 24b, so the present invention has the advantage of refrigeration fast when the normal operation that does not defrost.
Claims (9)
1, a kind of refrigerator of refrigeration continuously is by casing be arranged on cold air runner in the casing, be arranged in the cold air runner and be used for carrying out the evaporimeter of heat exchange with high temperature cold air and cold air blowing fan of forced circulation in casing being constituted; The invention is characterized in the described cold air runner and be provided with two evaporimeters with independent cold air runner and be used for optionally opening and closing the windscreens of two evaporimeter cold air runners that the periphery of each evaporimeter is equipped with the Defrost heater that is used to remove frosting.
2, the refrigerator of refrigeration continuously according to claim 1 is characterized in that leading in the coolant tubes of evaporimeter and is provided with the control valve that refrigerant agent optionally is provided to the evaporimeter that do not defrost.
3, the refrigerator of refrigeration continuously according to claim 2 is characterized in that control valve is the cross valve with an inlet and three outlets.
4, the refrigerator of refrigeration continuously according to claim 3 is characterized in that described cross valve is a magnetic valve.
5, the refrigerator of refrigeration continuously according to claim 1 is characterized in that being provided with between described two evaporimeters division board that evaporimeter cold air runner is divided into two-way.
6, the refrigerator of refrigeration continuously according to claim 5 is characterized in that described division board made by heat-barrier material.
7, the refrigerator of refrigeration continuously according to claim 1 is characterized in that described windscreen is by hinge with can hinge be that the plate that evaporimeter cold air runner was rotated and optionally cut off at the center constitutes.
8, the refrigerator of refrigeration continuously according to claim 7 is characterized in that described plate has can open arbitrary evaporimeter cold air runner and open three kinds of positions of two evaporimeter cold air runners simultaneously.
9, the refrigerator of refrigeration continuously according to claim 7 is characterized in that described windscreen is located at the upstream of evaporimeter in the cold air runner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01144433 CN1427233A (en) | 2001-12-18 | 2001-12-18 | Refrigerator capable of continuously cooling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01144433 CN1427233A (en) | 2001-12-18 | 2001-12-18 | Refrigerator capable of continuously cooling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1427233A true CN1427233A (en) | 2003-07-02 |
Family
ID=4677576
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01144433 Pending CN1427233A (en) | 2001-12-18 | 2001-12-18 | Refrigerator capable of continuously cooling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1427233A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104215016A (en) * | 2013-05-30 | 2014-12-17 | 万盛精密钣金江苏有限公司 | Automatic defrosting system of medical cold closet |
| CN105135791A (en) * | 2015-03-13 | 2015-12-09 | 合肥美的电冰箱有限公司 | Defrosting system and defrosting method for air cooling refrigerator and air cooling refrigerator |
| CN106247742A (en) * | 2016-08-12 | 2016-12-21 | 合肥美菱股份有限公司 | A kind of refrigerator freezing fan defrosting device and control method thereof |
| CN109442827A (en) * | 2018-11-09 | 2019-03-08 | 四川长虹电器股份有限公司 | Refrigeration system and refrigerating method |
| CN112902498A (en) * | 2021-01-14 | 2021-06-04 | 山东三土能源股份有限公司 | Air source heat pump refrigerant circulating system |
| CN113803941A (en) * | 2021-09-30 | 2021-12-17 | 珠海格力电器股份有限公司 | Air duct structure, refrigerating unit, control method and storage medium |
-
2001
- 2001-12-18 CN CN 01144433 patent/CN1427233A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104215016A (en) * | 2013-05-30 | 2014-12-17 | 万盛精密钣金江苏有限公司 | Automatic defrosting system of medical cold closet |
| CN105135791A (en) * | 2015-03-13 | 2015-12-09 | 合肥美的电冰箱有限公司 | Defrosting system and defrosting method for air cooling refrigerator and air cooling refrigerator |
| CN105135791B (en) * | 2015-03-13 | 2017-10-27 | 合肥美的电冰箱有限公司 | Defrosting system, defrosting method and the wind cooling refrigerator of wind cooling refrigerator |
| CN106247742A (en) * | 2016-08-12 | 2016-12-21 | 合肥美菱股份有限公司 | A kind of refrigerator freezing fan defrosting device and control method thereof |
| CN106247742B (en) * | 2016-08-12 | 2018-09-18 | 长虹美菱股份有限公司 | A kind of refrigerator freezing fan defrosting device and its control method |
| CN109442827A (en) * | 2018-11-09 | 2019-03-08 | 四川长虹电器股份有限公司 | Refrigeration system and refrigerating method |
| CN112902498A (en) * | 2021-01-14 | 2021-06-04 | 山东三土能源股份有限公司 | Air source heat pump refrigerant circulating system |
| CN112902498B (en) * | 2021-01-14 | 2022-12-20 | 山东三土能源股份有限公司 | Air source heat pump refrigerant circulation system |
| CN113803941A (en) * | 2021-09-30 | 2021-12-17 | 珠海格力电器股份有限公司 | Air duct structure, refrigerating unit, control method and storage medium |
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Legal Events
| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |