CN106288612A

CN106288612A - A kind of defrost energy-saving control method of wind cooling refrigerator

Info

Publication number: CN106288612A
Application number: CN201610724717.XA
Authority: CN
Inventors: 崔培培; 尚殿波; 陈开松; 李乾坤
Original assignee: Hefei Meiling Co ltd
Current assignee: Hefei Meiling Co ltd
Priority date: 2016-08-25
Filing date: 2016-08-25
Publication date: 2017-01-04

Abstract

The invention discloses the defrost power-economizing method of a kind of wind cooling refrigerator, comprise the steps: a, meet defrost condition and enter defrost, close freezing and enter air door and return air air door, open other room air doors, start fan.B, after n min, close fan, start defrosting heater, meet defrost and exit temperature, defrosting heater disconnects, and enters and drips the time.C, the time of dripping detect each room sensor temperature after terminating, and meet compressor start up condition, start compressor and fan, preferential to room refrigeration between setting in the setting time.The present invention can reduce described wind cooling refrigerator defrost energy consumption, improves refrigerating efficiency after defrost, thus effectively reduces the energy consumption of defrost process.

Description

A kind of defrost energy-saving control method of wind cooling refrigerator

Technical field

The present invention relates to the defrost energy-saving control method of a kind of wind cooling refrigerator.

Background

Wind cooling refrigerator is referred to as frost-free refrigerator, and the high temperature air that its operation principle is extraneous flows through setting and must steam in refrigerator Sending out device and carry out heat exchange, the air themperature after heat exchange reduces.The cold air that temperature after heat exchange reduces is through air channel It is blown in refrigerator compartment, reaches purpose of freezing to obtain.But high temperature air kind moisture runs into cold vaporizer can be tied in its surface condensation Frost.

Prior art to the frost of air cooling refrigerator evaporator generally by being arranged on the steel pipe heater of vaporizer bottom, logical The mode of heat radiation and conduction of heat of crossing is by the frost thawing on vaporizer.But the steam after defrost can exist in a large number with evaporator room and In its air channel being connected with vaporizer, this kind of automatic defrosting mode needs to consume substantial amounts of energy consumption, defrost finisher indoor Heat need to again be freezed by vaporizer and its evaporator room and the temperature inside the box be reduced, i.e. the increment of wind cooling refrigerator defrost energy consumption. The energy consumption how second part defrost to be brought reduces, and is that the energy-conservation needs of wind cooling refrigerator solve to obtain an important topic.

Summary of the invention

The present invention is i.e. for solving the problems referred to above, proposing the defrost energy-saving control method of a kind of wind cooling refrigerator, to having Effect reduces the defrost energy consumption of wind cooling refrigerator, improves refrigerating efficiency after defrost, thus reduces the energy consumption of defrost process.

The present invention to achieve the above object of the invention, adopts the following technical scheme that

The feature of the defrost energy-saving control method of a kind of wind cooling refrigerator of the present invention is that described wind cooling refrigerator includes: defrost adds Hot device, vaporizer, fan, be separately positioned on the inlet air door of each room of refrigerator and be arranged on refrigerator first between indoor returning Wind air door；

Described defrost energy-saving control method is to carry out as follows:

Step 1, judging whether to meet defrost condition, if meeting, then compressor is out of service and enters defrost, closes first Between room enter air door and return air air door；Open except the inlet air door of other rooms outdoor between first, and start fan；

After step 2, fan run n min, close fan, start defrosting heater；5min≤n≤10min；

Step 3, judging whether to meet the design temperature that defrost is exited, if meeting, then defrosting heater disconnects, and entrance is dripped Time；

Step 4, judge whether time of dripping terminates, if terminating, then detect each room sensor temperature, and judge arbitrary Whether room reaches starting point temperature, if reaching, then closes inlet air door and the return air air door of first room, starts compressor and wind Fan, gives except other rooms outdoor between first carry out m min refrigeration, 30min≤m≤90min.

Defrost energy-saving control method feature of the present invention lies also in: the warm area of described first room is freezing temperature region, Except other rooms outdoor between first are cold preservation warm area.

Compared with prior art, the beneficial effects of the present invention is:

1 present invention, before defrost starts, closes first room inlet air door and return air air door, utilizes vaporizer waste cold to removing Other rooms refrigeration outside refrigerating chamber, makes full use of refrigerant system capacity, and can reduce defrost adds heat simultaneously.Defrosting heater After connection, close first room inlet air door and return air air door with intercept steel pipe defrosting heater heating heat and first between room it Between heat exchange, saved defrost heating heat.

2, when the present invention enters after defrost terminates and normally freezes, continue to close freezing inlet air door and return air air door, first First give other rooms refrigeration in addition to the first Jian Shiji freezing compartment, make refrigeration system be in a period of time after defrost efficiently Operation conditions.

Accompanying drawing explanation

The refrigerator structure schematic diagram realizing defrost energy-saving control method of Fig. 1 embodiment of the present invention；

Fig. 2 one of the present invention defrost energy-saving control method control flow chart；

Label in figure: 1 first room；2 second compartment；3 the 3rd rooms；4 return air air doors；5 defrosting heaters；6 vaporizers； 7 fans；8 first room inlet air door；9 second compartment inlet air door；10 the 3rd room inlet air door.

Detailed description of the invention

In the present embodiment, as it is shown in figure 1, wind cooling refrigerator includes: first room 1, second compartment 2, the 3rd room 3, defrost Heater 5, vaporizer 6,7, first room inlet air door 8 of fan, second compartment inlet air door 9, the 3rd room inlet air door 10 With return air air door 4.Wherein, in first room 1 of refrigerator, inlet air door 8 is arranged at fan housing top, first room, and return air air door 4 sets Put at fan housing bottom, first room, both synchronous opening/closings.Inlet air door indoor between refrigerator second compartment inlet air door 9 and the 3rd 10, control room refrigeration between second compartment and the 3rd respectively.The warm area of first room 1 is freezing temperature region, except outdoor its between first Between him, room is cold preservation warm area；

As in figure 2 it is shown, the defrost energy-saving control method of a kind of wind cooling refrigerator is to carry out as follows:

Step 1, judging whether to meet defrost condition, if meeting, then compressor is out of service and enters defrost, closes first Between room enter air door 8 and return air air door 4；Open except the inlet air door of other rooms outdoor between first, and start fan 7；

After step 2, fan 7 run n min, close fan 7, start defrosting heater 5；5min≤n≤10min；This reality Execute in example, n=5min.

Step 3, judging whether to meet the design temperature that defrost is exited, if meeting, then defrosting heater 5 disconnects, and enters and drips The water time；

Step 4, judge whether time of dripping terminates, if terminating, then detect each room sensor temperature, and judge whether full Foot compressor start up condition, if meeting compressor start up condition, then closes inlet air door 8 and the return air air door 4 of first room, starts compressor and wind Fan 7, gives except other rooms refrigeration outdoor between first carries out m min refrigeration, 30min≤m≤90min.In the present embodiment, m= 60min。

Claims

1. a defrost energy-saving control method for wind cooling refrigerator, is characterized in that, described wind cooling refrigerator includes: defrosting heater (5), Vaporizer (6), fan (7), be separately positioned on the inlet air door of each room of refrigerator and be arranged on refrigerator first between in room (1) Return air air door (4)；

Described defrost energy-saving control method is to carry out as follows:

Step 1, judging whether to meet defrost condition, if meeting, then compressor is out of service and enters defrost, closes first room Enter air door (8) and return air air door (4)；Open except the inlet air door of other rooms outdoor between first, and start fan (7)；

After step 2, fan (7) run n min, close fan (7), start defrosting heater (5)；5min≤n≤10min；

Step 3, judging whether to meet the design temperature that defrost is exited, if meeting, then defrosting heater (5) disconnects, and entrance is dripped Time；

Step 4, judge whether time of dripping terminates, if terminating, then detect each room sensor temperature, and judge that arbitrary room is No reaching starting point temperature, if reaching, then closing inlet air door (8) and the return air air door (4) of first room, start compressor with Fan (7), gives except other rooms outdoor between first carry out m min refrigeration, 30min≤m≤90min.

2. defrost energy-saving control method as claimed in claim 1, it is characterised in that: the warm area of described first room is freezing Warm area, except other rooms outdoor between first are cold preservation warm area.