CN201992941U - Air-cooled refrigerator - Google Patents
Air-cooled refrigerator Download PDFInfo
- Publication number
- CN201992941U CN201992941U CN201120098283XU CN201120098283U CN201992941U CN 201992941 U CN201992941 U CN 201992941U CN 201120098283X U CN201120098283X U CN 201120098283XU CN 201120098283 U CN201120098283 U CN 201120098283U CN 201992941 U CN201992941 U CN 201992941U
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- Prior art keywords
- blower fan
- air
- evaporimeter
- temperature
- refrigerating chamber
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- Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)
- Defrosting Systems (AREA)
Abstract
The utility model provides an air-cooled refrigerator. The air-cooled refrigerator comprises at least a cold storage chamber, an evaporator, an air duct, a fan, a defrosting sensor and a controller, wherein, the cold storage chamber is communicated with the evaporator by the air duct; the air duct comprises an air return opening and an air outlet; the fan is arranged in the air duct; the defrosting sensor is used for detecting the temperature of the evaporator; the controller is connected with the evaporator, the fan and the defrosting sensor respectively; and the controller is used for controlling the evaporator to stop refrigeration after the temperature of the cold storage chamber reaches a set temperature of the cold storage chamber, and closing the fan after the defrosting sensor detects that the temperature of the evaporator achieves a threshold value. Compared with a conventional air-cooled refrigerator, the air-cooled refrigerator provided by the embodiment of the utility model has the advantages that a defrosting heater is cancelled, a defrosting manner is changed to a natural defrosting manner, and the humidity index of the cold storage chamber can be remarkably improved.
Description
Technical field
The utility model relates to field of domestic appliances manufacture technology, particularly a kind of wind cooling refrigerator.
Background technology
Wind cooling refrigerator relies on the forced convertion mode to realize refrigeration, mainly is made up of parts such as casing, door body, control system, air channel, compressor, evaporimeter, condenser, blower motor (hereinafter to be referred as blower fan), defrosting heaters.The evaporimeter of this series products is hidden in air channel cover plate and the air channel foam, air channel cover plate and air channel foam lower disposed flow back to the air port more, top is furnished with a plurality of air outlets, forms supply air duct and return airway jointly, and blower fan also is installed in the air channel (general top at evaporimeter) simultaneously.In when refrigeration, compressor operating, the blower fan forced convertion is leaned in the blower fan running of switching on simultaneously, and cold air is delivered to space in the case.Because it has the advantage that temperature is even, cooling velocity is fast, therefore be subjected to more and more consumers' favor.But in said system, because cold air carries out the forced convertion circulation in case, easily dehydration is air-dry to cause fruit and vegetable easily.Therefore, the medial humidity in the traditional wind cooling refrigerator, case only can maintain about 50% even lower.
The evaporimeter that wind cooling refrigerator uses is finned evaporator, frosting easily on the fin, the frosting meeting influences the refrigeration of refrigerator, so generally at evaporator surface or bottom defrosting heater (defrosting heater can be aluminum pipe, steel pipe, quartz ampoule or other pattern) is installed, main effect is exactly the frost that regularly melts on the evaporimeter.Defrosting heater not only takies the refrigerator inside space, increases cost, and can increase energy consumption of refrigerator because need in the defrost process to the heater energising.In order to overcome above defective, in some wind cooling refrigerator technical scheme, cancel defrosting heater.For example, notification number provides a kind of new wind cooling refrigerator defrosting method for the Chinese patent of CN 101586898A.The wind cooling refrigerator of this technical scheme comprises CPU and air channel.Blower fan is set in the air channel, and blower fan is connected with CPU, and blower fan comprises refrigerating chamber blower fan, refrigerating chamber blower fan, and wherein, the refrigerating chamber blower fan is set to two-way blower fan.After temperature of refrigerating chamber rose to design temperature, the refrigerating chamber blower fan began reversing, and the water vapour after the evaporimeter defrost is blown go back to refrigerating chamber inside, thereby reached the double effects that does not need the heater defrosting and improve humidity in the case.
The shortcoming that prior art exists is:
1 if reach the fruit and vegetable antistaling storing of preserving moisture, generally require humidity to remain on about 80%-90%, yet traditional wind cooling refrigerator, humidity is on the low side in the case, the height that the does not reach fruit and vegetable antistaling storing requirement of preserving moisture, easily dehydration is air-dry to cause fruit and vegetable easily, reduces storage time and edibility.
2, the improvement technical scheme that proposes of above-mentioned Chinese patent, the refrigerating chamber blower fan is set to two-way blower fan, not only increase and control cost, and after fan blade entered inverted status, air quantity, fan efficiency was a greater impact, and are unfavorable for the lasting raising of humidity in the case.
3, the scheme that proposes according to above-mentioned Chinese patent needs the blower fan continuous running, and refrigerator must be worked year in year out, thereby higher to the reliability requirement of blower fan.
The utility model content
The purpose of this utility model is intended to solve at least one of above-mentioned technological deficiency.
For achieving the above object, the utility model proposes a kind of wind cooling refrigerator on the one hand, comprising: at least one refrigerating chamber; Evaporimeter; With the air channel of described at least one refrigerating chamber and the connection of described evaporimeter, described air channel comprises return air inlet and air outlet; Be arranged on the blower fan in the described air channel; Detect the defrosting sensor of described evaporator temperature; And controller, described controller links to each other with described evaporimeter, described blower fan and described defrosting sensor respectively, described controller is controlled described evaporimeter and is stopped refrigeration after the temperature of described at least one refrigerating chamber reaches the refrigerating chamber design temperature, and after the temperature that described defrosting sensor detects described evaporimeter reached threshold value, described controller cut out described blower fan.
In an embodiment of the present utility model, described blower fan is unidirectional blower fan, and the wind direction of described blower fan blows to described at least one refrigerating chamber.
In an embodiment of the present utility model, described defrosting sensor is arranged on described evaporator pipeline or the fin.
In an embodiment of the present utility model, described threshold value is 2-5 ℃.
The utility model embodiment has following advantage:
1, the wind cooling refrigerator of the utility model embodiment is compared with conventional wind cooling refrigerator, has cancelled defrosting heater, changes nature defrost mode into, can significantly improve the humidity index of refrigerating chamber;
2, the wind cooling refrigerator of the utility model embodiment does not need two-way blower fan, control is simple, easy to implement, and in the utility model embodiment, entered next refrigeration before the cycle at refrigerating chamber, blower fan can keep the state of quitting work for some time, has therefore avoided the blower fan continuous running, and the reliability of blower fan long-term work is provided.
3, the utility model embodiment directly judges based on the temperature of evaporimeter whether the evaporimeter defrost is thorough, and it is more accurate therefore to judge, reliable.
Aspect that the utility model is additional and advantage part in the following description provide, and part will become obviously from the following description, or recognize by practice of the present utility model.
Description of drawings
Above-mentioned and/or additional aspect of the utility model and advantage are from obviously and easily understanding becoming the description of embodiment below in conjunction with accompanying drawing, wherein:
Fig. 1 is the wind cooling refrigerator schematic diagram of the utility model embodiment.
The specific embodiment
Describe embodiment of the present utility model below in detail, the example of described embodiment is shown in the drawings, and wherein identical from start to finish or similar label is represented identical or similar elements or the element with identical or similar functions.Below by the embodiment that is described with reference to the drawings is exemplary, only is used to explain the utility model, and can not be interpreted as restriction of the present utility model.
As shown in Figure 1, be the wind cooling refrigerator schematic diagram of the utility model embodiment.This wind cooling refrigerator comprises at least one refrigerating chamber, and this wind cooling refrigerator also may comprise refrigerating chamber, temperature-changing chamber or other chamber certainly.This wind cooling refrigerator also comprises evaporimeter 100, and with the air channel of at least one refrigerating chamber and evaporimeter connection, wherein, this air channel comprises return air inlet and air outlet.This wind cooling refrigerator also comprises the blower fan 200 that is arranged in the air channel, detects the defrosting sensor 300 and the controller 400 of evaporimeter 100 temperature.Wherein, controller 400 links to each other with evaporimeter 100, blower fan 200 and defrosting sensor 300 respectively, controller 400 is controlled evaporimeter 100 and is stopped refrigeration after the temperature of at least one refrigerating chamber reaches the refrigerating chamber design temperature, and after the temperature that defrosting sensor 300 detects evaporimeter 100 reached threshold value, controller 400 cut out blower fan 200.In an embodiment of the present utility model, blower fan 200 is unidirectional blower fan, and the wind direction of blower fan 200 blows at least one refrigerating chamber.In another embodiment of the present utility model, defrosting sensor 300 can be arranged on the pipeline or fin of evaporimeter 100.
After the wind cooling refrigerator energising running of the utility model embodiment, controller 400 control evaporimeters 100 and blower fan 200 co-operation are with the beginning process of refrigerastion, after temperature of refrigerating chamber arrives the refrigerating chamber design temperature, controller 400 control evaporimeters 100 stop refrigeration, but control blower fan 200 still works on (turning to constant), the air (being generally 2～10 ℃) that is higher than 0 ℃ in the refrigerating chamber being sucked from return air inlet by blower fan 200, and the evaporimeter 100 of flowing through.Because there is frost on evaporimeter surface 100 this moment, its temperature is lower than zero degree, therefore has temperature difference with the air of flowing through, thereby can produce mutual heat exchange, causes the temperature of evaporimeter to raise gradually like this, thereby the frost layer can melt gradually.The tiny globule or steam after the thawing suck through blower fan 200, and are blown into refrigerating chamber from air outlet once more, thereby can improve humidity in the case.Circulation so repeatedly, can Keep cool the chamber in for a long time, humidity maintains higher scope, based on the wind cooling refrigerator of the utility model embodiment, through the model machine checking, medial humidity can reach more than 80%, high humility can reach more than 90%, and the humidification effect is remarkable.
In addition, owing to be furnished with defrosting sensor 300 on the evaporimeter 100, it can experience the variations in temperature of evaporimeter 100 in the utility model embodiment, and controller 400 can be determined the defrost done state exactly by defrosting sensor 300 image data.For example, during each of evaporimeter 100 stops refrigeration, when defrosting sensor 300 detects the temperature that rises to threshold value, this threshold value for example is+2-+5 ℃, be preferably+3 ℃ the time, can think that evaporimeter 100 surface frost layers melt fully, withdraw from the defrost state this moment, and blower fan 200 shuts down.When temperature of refrigerating chamber rise to uniform temperature can't satisfy set to require after, refrigerating chamber reenters refrigerating state, this evaporimeter 100 and blower fan 200 begin co-operation again, go round and begin again.In the utility model embodiment, before refrigerating chamber reentered refrigerating state, blower fan 200 can be shut down a period of time.In embodiment of the present utility model, the condition that blower fan 200 shuts down can determine that the condition that shuts down for dissimilar evaporator fan 200 can be different jointly according to the concrete numerical value of defrosting sensor 300 and in conjunction with evaporimeter 100 defrost situations.
The utility model embodiment has following advantage:
1, the wind cooling refrigerator of the utility model embodiment is compared with conventional wind cooling refrigerator, has cancelled defrosting heater, changes nature defrost mode into, can significantly improve the humidity index of refrigerating chamber;
2, the wind cooling refrigerator of the utility model embodiment does not need two-way blower fan, control is simple, easy to implement, and in the utility model embodiment, entered next refrigeration before the cycle at refrigerating chamber, blower fan can keep the state of quitting work for some time, has therefore avoided the blower fan continuous running, and the reliability of blower fan long-term work is provided.
3, the utility model embodiment directly judges based on the temperature of evaporimeter whether the evaporimeter defrost is thorough, and it is more accurate therefore to judge, reliable.
Although illustrated and described embodiment of the present utility model, for the ordinary skill in the art, be appreciated that under the situation that does not break away from principle of the present utility model and spirit and can carry out multiple variation, modification, replacement and modification that scope of the present utility model is by claims and be equal to and limit to these embodiment.
Claims (4)
1. a wind cooling refrigerator is characterized in that, comprising:
At least one refrigerating chamber;
Evaporimeter;
With the air channel of described at least one refrigerating chamber and the connection of described evaporimeter, described air channel comprises return air inlet and air outlet;
Be arranged on the blower fan in the described air channel;
Detect the defrosting sensor of described evaporator temperature; With
Controller, described controller links to each other with described evaporimeter, described blower fan and described defrosting sensor respectively, described controller is controlled described evaporimeter and is stopped refrigeration after the temperature of described at least one refrigerating chamber reaches the refrigerating chamber design temperature, and after the temperature that described defrosting sensor detects described evaporimeter reached threshold value, described controller cut out described blower fan.
2. wind cooling refrigerator as claimed in claim 1 is characterized in that, described blower fan is unidirectional blower fan, and the wind direction of described blower fan blows to described at least one refrigerating chamber.
3. wind cooling refrigerator as claimed in claim 1 is characterized in that described defrosting sensor is arranged on described evaporator pipeline or the fin.
4. wind cooling refrigerator as claimed in claim 1 is characterized in that, described threshold value is 2-5 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120098283XU CN201992941U (en) | 2011-04-01 | 2011-04-01 | Air-cooled refrigerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120098283XU CN201992941U (en) | 2011-04-01 | 2011-04-01 | Air-cooled refrigerator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201992941U true CN201992941U (en) | 2011-09-28 |
Family
ID=44669427
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120098283XU Expired - Lifetime CN201992941U (en) | 2011-04-01 | 2011-04-01 | Air-cooled refrigerator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201992941U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102116556A (en) * | 2011-04-01 | 2011-07-06 | 合肥美的荣事达电冰箱有限公司 | Air-cooled refrigerator and control method thereof |
| CN104329872A (en) * | 2014-10-24 | 2015-02-04 | 海信容声(广东)冰箱有限公司 | Refrigerator evaporator defrosting method |
| CN106091566A (en) * | 2016-06-17 | 2016-11-09 | 青岛海尔股份有限公司 | A kind of control method for wind cooling refrigerator |
-
2011
- 2011-04-01 CN CN201120098283XU patent/CN201992941U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102116556A (en) * | 2011-04-01 | 2011-07-06 | 合肥美的荣事达电冰箱有限公司 | Air-cooled refrigerator and control method thereof |
| CN104329872A (en) * | 2014-10-24 | 2015-02-04 | 海信容声(广东)冰箱有限公司 | Refrigerator evaporator defrosting method |
| CN106091566A (en) * | 2016-06-17 | 2016-11-09 | 青岛海尔股份有限公司 | A kind of control method for wind cooling refrigerator |
| CN106091566B (en) * | 2016-06-17 | 2019-04-09 | 青岛海尔股份有限公司 | A kind of control method for wind cooling refrigerator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: HEFEI MIDEA REFRIGERATOR CO., LTD. Free format text: FORMER NAME: HEFEI MEDIA RONGSHIDA REFRIGERATOR CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 230601 Hefei Changjiang Road, Anhui, No. 669 Patentee after: Hefei Midea Refrigerator Co., Ltd. Patentee after: Hefei Hualing Co., Ltd. Address before: 230601 Hefei Changjiang Road, Anhui, No. 669 Patentee before: Hefei Media Rongshida Refrigerator Co., Ltd. Patentee before: Hefei Hualing Co., Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110928 |