CN102506557B - Refrigeration equipment and switching unit control method in defrosting process of refrigeration equipment - Google Patents
Refrigeration equipment and switching unit control method in defrosting process of refrigeration equipment Download PDFInfo
- Publication number
- CN102506557B CN102506557B CN201110330216.0A CN201110330216A CN102506557B CN 102506557 B CN102506557 B CN 102506557B CN 201110330216 A CN201110330216 A CN 201110330216A CN 102506557 B CN102506557 B CN 102506557B
- Authority
- CN
- China
- Prior art keywords
- refrigerating chamber
- refrigerator
- temperature
- switch unit
- current temperatures
- 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.)
- Active
Links
Images
Abstract
The invention provides a switching unit control method in the defrosting process of a refrigerator. The switching unit control method comprises the following steps of: detecting the current temperature of the cold storage chamber of the refrigerator and the current temperature of the freezing chamber of the refrigerator; judging whether the current temperature of the freezing chamber of the refrigerator is equal to or higher than the startup temperature of the freezing chamber or not, and if so, judging whether the current temperature of the cold storage chamber of the refrigerator is equal to or lower than the shutdown temperature of the freezing chamber; and when the current temperature of the cold storage chamber of the refrigerator is equal to or lower than the shutdown temperature of the cold storage chamber and a cold storage chamber evaporator of the refrigerator is in a defrosting process, controlling the switching unit of the refrigerator to be communicated with freezing capillaries of the refrigerator. The invention additionally provides refrigeration equipment. When the cold storage chamber of the refrigeration equipment is defrosted, the switching unit of the refrigeration equipment is switched to a freezing side and pressure balance can be guaranteed. Moreover, since residual refrigerant in a condenser flows to the freezing chamber through the switching unit, when the cold storage chamber is defrosted, interference caused by excessive refrigerant is avoided and the defrosting efficiency of the cold storage chamber is improved.
Description
Technical field
The present invention relates to refrigeration plant manufacturing technology field, particularly the control method of the switch unit in a kind of refrigeration plant and defrost process thereof.
Background technology
Growing along with social life, the refrigeration plants such as refrigerator occupy more and more important position in people's daily life.Wherein, refrigerator has refrigerating chamber and refrigerating chamber, and the refrigeration of refrigerating chamber and refrigerating chamber is realized by compressor.A compressor at one time Dui Yigejian chamber freezes, and by magnetic valve, is realized the refrigeration of refrigerating chamber or refrigerating chamber is switched.
As shown in Figure 1, the control method of traditional electromagnetic valve of refrigerator is as follows:
Step S101, judges whether refrigerating chamber requires refrigeration, if it is performs step S104, otherwise execution step S102.
Step S102, judges whether refrigerating chamber requires refrigeration, if it is performs step S104, otherwise execution step S103.
Step S103, magnetic valve is in freezing side.
Step S104, magnetic valve is in refrigeration side.
In sum, the control method of traditional electromagnetic valve of refrigerator comprises:
(1) when refrigerating chamber actual temperature >=refrigerating chamber turn-on temperature, magnetic valve is switched to refrigeration side, and compressor freezes to refrigerating chamber;
(2) when refrigerating chamber actual temperature≤refrigerating chamber stopping temperature and refrigerating chamber actual temperature >=refrigerating chamber turn-on temperature, magnetic valve is switched to freezing side, and compressor freezes to refrigerating chamber;
(3) when refrigerating chamber enters defrost, magnetic valve is switched to refrigeration side, and compressor freezes to refrigerating chamber;
(4), when above 3 conditions all do not meet, magnetic valve state does not change.
From said method, can find out, in traditional refrigerator defrosting control, magnetic valve switches to refrigeration side, by compressor, refrigerating chamber is freezed.When cold compartment of refrigerator defrost, whole system is in order to keep pressure balance, and the cold-producing medium in condenser can flow to by magnetic valve the evaporimeter of corresponding chamber.Even now valve is switched to refrigeration side, and refrigerant will flow to refrigerating chamber.This control method can cause the defrost Efficiency Decreasing of refrigerating chamber.Affect defrost effect.
Summary of the invention
Object of the present invention is intended at least solve one of above-mentioned technological deficiency.
For this reason, first object of the present invention is to propose the switch unit control method in a kind of refrigerator defrost process, and the method can improve the defrost efficiency of the refrigerating chamber of refrigerator.Second object of the present invention is to provide a kind of refrigeration plant.
For achieving the above object, the embodiment of first aspect present invention provides the switch unit control method in a kind of refrigerator defrost process, comprises the steps:
Detect the Current Temperatures of refrigerating chamber and the Current Temperatures of refrigerating chamber of refrigerator;
Whether the Current Temperatures that judges the refrigerating chamber of described refrigerator is equal to or higher than refrigerating chamber turn-on temperature, if so, judges whether the Current Temperatures of the refrigerating chamber of described refrigerator is equal to or less than refrigerating chamber stopping temperature;
The refrigerator evaporator that is equal to or less than described refrigerating chamber stopping temperature and described refrigerator when the Current Temperatures of refrigerating chamber of the described refrigerator of judgement is in defrost process time; control the switch unit of described refrigerator and the freezing capillary of described refrigerator is connected; wherein, described switch unit is optionally communicated with the freezing capillary of described refrigerator and the refrigeration capillary of described refrigerator.
According to the switch unit control method in the refrigerator defrost process of the embodiment of the present invention, while carrying out defrost by the refrigerating chamber at refrigerator, the switch unit of refrigerator is switched to freezing side, thereby can guarantee pressure balance.And cold-producing medium residual in condenser can flow to refrigerating chamber by switch unit, make refrigerating chamber when defrost, do not have unnecessary cold-producing medium to disturb, thereby improve the defrost efficiency of refrigerating chamber.In addition, because refrigerant residual in condenser is not by refrigerating chamber, thereby can reduce flowing of refrigeration indoor actual temperature, thereby can realize the accurate control of temperature.
In one embodiment of the invention, adopt temperature sensor to detect the Current Temperatures of the refrigerating chamber of described refrigerator.
In one embodiment of the invention, when the Current Temperatures of the refrigerating chamber of described refrigerator is equal to or higher than refrigerating chamber turn-on temperature, described switch unit is optionally communicated with the refrigeration capillary of described refrigerator.
In one embodiment of the invention, if judge that the Current Temperatures of the refrigerating chamber of described refrigerator is equal to or less than refrigerating chamber turn-on temperature, whether the Current Temperatures that judges the refrigerating chamber of described refrigerator is equal to or less than refrigerating chamber turn-on temperature, if the Current Temperatures of the refrigerating chamber of described refrigerator is equal to or less than described refrigerating chamber turn-on temperature, control the switch unit of described refrigerator and the freezing capillary of described refrigerator is connected.
Thus, when the refrigerating chamber of refrigerator and refrigerating chamber all do not need to freeze, switch unit is arranged on freezing side, thereby can guarantee pressure balance.And refrigerant residual in condenser, not by refrigerating chamber, refrigerates flowing of indoor actual temperature thereby can reduce, thereby can realize the accurate control of temperature.
In one embodiment of the invention, described switch unit is magnetic valve.
The embodiment of second aspect present invention provides a kind of refrigeration plant, comprising: casing, is limited with refrigerating chamber and refrigerating chamber in described casing, door body, described door body is arranged on described casing, compressor, described compressor is positioned at the bottom rear side of described refrigerating chamber, condenser, the entrance of described condenser is connected with the outlet of described compressor, switch unit, described switch unit has entrance, the first outlet and the second outlet, the first capillary, described the first entrance capillaceous is connected with the first outlet of described switch unit, the first evaporimeter, described the first evaporimeter is arranged on the back of described refrigerating chamber, and the entrance of described the first evaporimeter is connected with described the first outlet capillaceous, and the outlet of described the first evaporimeter is connected with the entrance of described compressor, the first temperature sensor, described the first temperature sensor is arranged in described refrigerating chamber, for detection of the Current Temperatures of described refrigerating chamber, and generates the first temperature detection signal, the second capillary, described the second entrance capillaceous is connected with the second outlet of described switch unit, the second evaporimeter, described the second evaporimeter is arranged on the back of described refrigerating chamber, the entrance of described the second evaporimeter is connected with described the second outlet capillaceous, the outlet of described the second evaporimeter is connected with the entrance of described compressor, the second temperature sensor, described the second temperature sensor is arranged in described refrigerating chamber, for detection of the Current Temperatures of described refrigerating chamber, and generates the second temperature detection signal, control module, described control module respectively with described the first temperature sensor, described the second temperature sensor is connected with described switch unit, for receiving described the first temperature detection signal and described the second temperature detection signal to obtain the Current Temperatures of described refrigerating chamber and the Current Temperatures of described refrigerating chamber, and whether the Current Temperatures that judges the refrigerating chamber of described refrigerator is equal to or higher than refrigerating chamber turn-on temperature, if, whether the Current Temperatures that judges the refrigerating chamber of described refrigerator is equal to or less than refrigerating chamber stopping temperature, when the Current Temperatures of described refrigerating chamber is equal to or less than refrigerating chamber stopping temperature and described the first evaporimeter in defrost process time, the second outlet of controlling described switch unit is connected with described the second entrance capillaceous.
According to the refrigeration plant of the embodiment of the present invention, when the refrigerating chamber of refrigeration plant carries out defrost, the switch unit of refrigeration plant is switched to freezing side, thereby can guarantee pressure balance.And cold-producing medium residual in condenser can flow to refrigerating chamber by switch unit, make refrigerating chamber when defrost, do not have unnecessary cold-producing medium to disturb, thereby improve the defrost efficiency of refrigerating chamber.In addition, because refrigerant residual in condenser is not by refrigerating chamber, thereby can reduce flowing of refrigeration indoor actual temperature, thereby can realize the accurate control of temperature.
In one embodiment of the invention, described control module is also equal to or less than after refrigerating chamber turn-on temperature for the Current Temperatures at the described refrigerating chamber of judgement, whether the Current Temperatures that judges described refrigerating chamber is equal to or less than refrigerating chamber turn-on temperature, if the Current Temperatures of described refrigerating chamber is equal to or less than described refrigerating chamber turn-on temperature, the second outlet of controlling described switch unit is connected with described the second capillary.
Thus, when the refrigerating chamber of refrigerator and refrigerating chamber all do not need to freeze, switch unit is arranged on freezing side, thereby can guarantee pressure balance.And refrigerant residual in condenser, not by refrigerating chamber, refrigerates flowing of indoor actual temperature thereby can reduce, thereby can realize the accurate control of temperature.
In one embodiment of the invention, also comprise: dew eliminating tube, the entrance of described dew eliminating tube is connected with the outlet of described condenser; Device for drying and filtering, the entrance of described device for drying and filtering is connected with the outlet of described dew eliminating tube, and the outlet of described device for drying and filtering is connected with the entrance of described switch unit.
In one embodiment of the invention, described switch unit is magnetic valve.
In one embodiment of the invention, described refrigeration plant is refrigerator.
The aspect that the present invention is additional and advantage in the following description part provide, and part will become obviously from the following description, or recognize by practice of the present invention.
Accompanying drawing explanation
Above-mentioned and/or the additional aspect of the present invention and advantage will become from the following description of the accompanying drawings of embodiments and obviously and easily understand, wherein:
Fig. 1 is the flow chart of control method of the switch unit of traditional refrigerator;
Fig. 2 is the flow chart of the switch unit control method in refrigerator defrost process according to an embodiment of the invention;
Fig. 3 is the flow chart of the switch unit control method in refrigerator defrost process according to another embodiment of the invention; With
Fig. 4 is according to the structure chart of the refrigeration plant of the embodiment of the present invention.
The specific embodiment
Describe embodiments of the invention below in detail, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has the element of identical or similar functions from start to finish.Below by the embodiment being described with reference to the drawings, be exemplary, only for explaining the present invention, and can not be interpreted as limitation of the present invention.
In description of the invention, it should be noted that, unless otherwise prescribed and limit, term " installation ", " being connected ", " connection " should be interpreted broadly, for example, can be mechanical connection or electrical connection, also can be the connection of two element internals, can be to be directly connected, and also can indirectly be connected by intermediary, for the ordinary skill in the art, can understand as the case may be the concrete meaning of above-mentioned term.
With reference to description and accompanying drawing below, these and other aspects of embodiments of the invention will be known.These describe and accompanying drawing in, specifically disclose some particular implementation in embodiments of the invention, represent to implement some modes of the principle of embodiments of the invention, still should be appreciated that the scope of embodiments of the invention is not limited.On the contrary, embodiments of the invention comprise spirit and all changes within the scope of intension, modification and the equivalent that falls into additional claims.
Below with reference to Fig. 2 and Fig. 3, describe according to the switch unit control method in the refrigerator defrost process of the embodiment of the present invention.
As shown in Figure 2, the switch unit control method in the refrigerator defrost process of the embodiment of the present invention comprises the steps:
Step S201, the Current Temperatures of refrigerating chamber and the Current Temperatures of refrigerating chamber of detection refrigerator.
In one embodiment of the invention, can utilize the Current Temperatures of the refrigerator temperature sensor detection refrigerating chamber in the refrigerating chamber that is arranged on refrigerator.Utilization is arranged on the Current Temperatures that refrigerator temperature sensor in the refrigerating chamber of refrigerator detects refrigerating chamber.Particularly, refrigerator temperature sensor, after the Current Temperatures of refrigerating chamber being detected, generates temperature of refrigerating chamber detection signal.Freezer temperature sensor, after the Current Temperatures of refrigerating chamber being detected, generates freezer temperature detection signal.Then, refrigerator temperature sensor and freezer temperature sensor are sent to temperature of refrigerating chamber detection signal and freezer temperature detection signal respectively the control module of refrigerator.
Step S202, judges whether the Current Temperatures of the refrigerating chamber of refrigerator is equal to or higher than refrigerating chamber turn-on temperature, if so, judges whether the Current Temperatures of the refrigerating chamber of refrigerator is equal to or less than refrigerating chamber stopping temperature.
The control module of refrigerator, after the temperature of refrigerating chamber detection signal freezer temperature detection signal receiving from refrigerator temperature sensor and freezer temperature sensor, obtains the Current Temperatures of refrigerating chamber and refrigerating chamber.At the Current Temperatures that the refrigerating chamber of refrigerator detected, be equal to or higher than after refrigerating chamber turn-on temperature, judge whether the Current Temperatures of the refrigerating chamber of refrigerator is equal to or less than refrigerating chamber stopping temperature.In other words, first detect refrigerating chamber and whether reach refrigeration requirement, if refrigerating chamber reaches refrigeration requirement, then the Current Temperatures of the refrigerating chamber of refrigerator and refrigerating chamber stopping temperature are compared.Particularly, refrigerating chamber stopping temperature default in the Current Temperatures of refrigerating chamber and control module is compared, judge whether the Current Temperatures of the refrigerating chamber of refrigerator is equal to or less than refrigerating chamber stopping temperature.
Step S203, the refrigerator evaporator that is equal to or less than refrigerating chamber stopping temperature and refrigerator when the Current Temperatures of the refrigerating chamber of refrigerator in defrost process time, is controlled the switch unit of refrigerator and the freezing capillary of refrigerator and is connected.
When the refrigeration evaporator that is equal to or less than refrigerating chamber stopping temperature and refrigerator when the Current Temperatures of judgement refrigerating chamber is in defrost process, switch unit and the entrance freezing capillaceous refrigerator that control module is controlled refrigerator is connected.Wherein, the switch unit of refrigerator can optionally be communicated with refrigeration capillary and the freezing capillary of refrigerator.Particularly, when switch unit is connected with the refrigeration capillary of refrigerator, the compressor of refrigerator freezes to the refrigerating chamber of refrigerator.When switch unit is connected with the freezing capillary of refrigerator, the compressor of refrigerator freezes to the refrigerating chamber of refrigerator.
In one embodiment of the invention, switch unit can be magnetic valve.
According to the switch unit control method in the refrigerator defrost process of the embodiment of the present invention, while carrying out defrost by the refrigerating chamber at refrigerator, the switch unit of refrigerator is switched to freezing side, thereby can guarantee pressure balance.And cold-producing medium residual in condenser can flow to refrigerating chamber by switch unit, make refrigerating chamber when defrost, do not have unnecessary cold-producing medium to disturb, thereby improve the defrost efficiency of refrigerating chamber.In addition, because refrigerant residual in condenser is not by refrigerating chamber, thereby can reduce flowing of refrigeration indoor actual temperature, thereby can realize the accurate control of temperature.
In one embodiment of the present of invention, in step S202, if the Current Temperatures of the refrigerating chamber of judgement refrigerator is equal to or less than refrigerating chamber turn-on temperature, continuation judges whether the Current Temperatures of the refrigerating chamber of refrigerator is equal to or less than refrigerating chamber turn-on temperature, if the Current Temperatures of the refrigerating chamber of refrigerator is equal to or less than refrigerating chamber turn-on temperature, control the switch unit of refrigerator and the freezing capillary of refrigerator is connected.In other words, first judge whether refrigerating chamber needs refrigeration, if refrigerating chamber does not need refrigeration, further judge whether refrigerating chamber needs refrigeration.If refrigerating chamber do not need yet refrigeration, by switch unit be arranged on freezing side.
Thus, when the refrigerating chamber of refrigerator and refrigerating chamber all do not need to freeze, magnetic valve is arranged on freezing side, thereby can guarantee pressure balance.And refrigerant residual in condenser, not by refrigerating chamber, refrigerates flowing of indoor actual temperature thereby can reduce, thereby can realize the accurate control of temperature.
As from the foregoing, the invention provides two kinds of methods that improve defrost efficiency:
(1) when refrigerating chamber defrost, switch unit is arranged on freezing side;
(2) when refrigerating chamber and refrigerating chamber do not need cool room simultaneously, switch unit is arranged on freezing side.
Below with reference to Fig. 3, describe the control method of the magnetic valve of refrigerator in detail.
Step S301, judges whether refrigerating chamber requires refrigeration.
First, utilize the freezer temperature sensor in refrigerating chamber to detect the Current Temperatures of refrigerating chamber, and generate freezer temperature detection signal.The control module of refrigerator receives from the freezer temperature detection signal of freezer temperature sensor and obtains the Current Temperatures of refrigerating chamber.If the Current Temperatures of refrigerating chamber during lower than refrigerating chamber turn-on temperature default in control module, represents that refrigerating chamber does not need refrigeration, execution step S302, otherwise represent that refrigerating chamber needs refrigeration, execution step S304.
Step S302, judges whether refrigerating chamber requires refrigeration.
Whether the Current Temperatures that judges the refrigerating chamber of refrigerator is equal to or higher than default refrigerating chamber turn-on temperature in control module, if so, represents that refrigerating chamber needs refrigeration, execution step S303, otherwise represent that refrigerating chamber does not need refrigeration, execution step S305.In other words, when refrigerating chamber and refrigerating chamber all do not need to freeze, magnetic valve is arranged on to freezing side.
Step S303, controls magnetic valve in refrigeration side.
Control switch unit and be connected with the refrigeration capillary of refrigerator, thereby the compressor of refrigerator is freezed to the refrigerating chamber of refrigerator.
Step S304, judges whether the Current Temperatures of refrigerating chamber finishes higher than refrigerating chamber stopping temperature and defrost.
Judge that whether the Current Temperatures of refrigerating chamber is higher than refrigerating chamber stopping temperature default in control module, and the refrigeration evaporator of refrigerator whether defrost finishes.If meet above-mentioned two conditions simultaneously, perform step S303, otherwise execution step S305.In other words, after whether the Current Temperatures that judges refrigerating chamber finishes higher than refrigerating chamber stopping temperature and defrost, magnetic valve is arranged on to freezing side.
Step S305, controls magnetic valve in freezing side.
Control switch unit and be connected with the refrigeration capillary of refrigerator, thereby the compressor of refrigerator is freezed to the refrigerating chamber of refrigerator.
According to the refrigeration plant of the embodiment of the present invention, when the refrigerating chamber of refrigeration plant carries out defrost, the switch unit of refrigeration plant is switched to freezing side, thereby can guarantee pressure balance.And cold-producing medium residual in condenser can flow to refrigerating chamber by switch unit, make refrigerating chamber when defrost, do not have unnecessary cold-producing medium to disturb, thereby improve the defrost efficiency of refrigerating chamber.In addition, because refrigerant residual in condenser is not by refrigerating chamber, thereby can reduce flowing of refrigeration indoor actual temperature, thereby can realize the accurate control of temperature.
Below with reference to Fig. 4, describe according to the refrigeration plant of the embodiment of the present invention, wherein, refrigeration plant can have for refrigerator etc. the equipment of refrigerating function.
As shown in Figure 4, the refrigeration plant providing of the embodiment of the present invention comprises casing, wherein in casing, is limited with refrigerating chamber and refrigerating chamber, door body, is arranged on casing, compressor 1, is positioned at the bottom rear side of refrigerating chamber, condenser 2, wherein, the entrance of condenser 2 is connected with the outlet of compressor 1, switch unit 3, has entrance, the first outlet and the second outlet, the first capillary 4, wherein the entrance of the first capillary 4 is connected with the first outlet of switch unit 3, the first evaporimeter 5, wherein the first evaporimeter 5 is arranged on the back of refrigerating chamber, and the entrance of the first evaporimeter 5 is connected with the outlet of the first capillary 4, and the outlet of the first evaporimeter 5 is connected with the entrance of compressor 1, temperature sensor 6, wherein the first temperature sensor 6 is arranged in refrigerating chamber, for detection of the Current Temperatures of refrigerating chamber, and generates the first temperature detection signal, the second capillary 7, wherein the entrance of the second capillary 7 is connected with the second outlet of switch unit 3, the second evaporimeter 8, wherein the second evaporimeter 8 is arranged on the back of refrigerating chamber, and the entrance of the second evaporimeter 8 is connected with the outlet of the second capillary 7, and the outlet of the second evaporimeter 8 is connected with the entrance of compressor 1, the second temperature sensor 12, is arranged in refrigerating chamber, for detection of the Current Temperatures of refrigerating chamber, and generates the second temperature detection signal, control module 9, respectively with described the first temperature sensor 6, the second temperature sensor 12 is connected with switch unit 3, for receiving the first temperature detection signal and the second temperature detection signal to obtain the Current Temperatures of refrigerating chamber and the Current Temperatures of refrigerating chamber, and whether the Current Temperatures that judges the refrigerating chamber of refrigerator is equal to or higher than refrigerating chamber turn-on temperature, if, whether the Current Temperatures that judges the refrigerating chamber of refrigerator is equal to or less than refrigerating chamber stopping temperature, when the Current Temperatures of refrigerating chamber is equal to or less than refrigerating chamber stopping temperature and the first evaporimeter 5 in defrost process time, the second outlet of controlling switch unit 3 is connected with the entrance of the second capillary 7.
In one embodiment of the invention, control module 9 is also equal to or less than after refrigerating chamber turn-on temperature for the Current Temperatures at the described refrigerating chamber of judgement, whether the Current Temperatures that judges refrigerating chamber is equal to or less than refrigerating chamber turn-on temperature, if the Current Temperatures of refrigerating chamber is equal to or less than refrigerating chamber turn-on temperature, the second outlet of controlling switch unit 3 is connected with described the second capillary.
Thus, when the refrigerating chamber of refrigerator and refrigerating chamber all do not need to freeze, switch unit is arranged on freezing side, thereby can guarantee pressure balance.And refrigerant residual in condenser, not by refrigerating chamber, refrigerates flowing of indoor actual temperature thereby can reduce, thereby can realize the accurate control of temperature.
As from the foregoing, in following two kinds of situations, control module 9 is controlled switch unit 3 and is arranged on freezing side.
(1), when refrigerating chamber defrost, control module 9 is controlled switch unit 3 and is arranged on freezing side; (2) when refrigerating chamber and refrigerating chamber do not need cool room simultaneously, control module 9 is controlled switch units 3 and is arranged on freezing side.
In one embodiment of the invention, switch unit 3 can be magnetic valve.
In one embodiment of the invention, refrigeration plant also comprises dew eliminating tube 10 and device for drying and filtering 11.Wherein, the entrance of dew eliminating tube 10 is connected with the outlet of condenser 2, and the entrance of device for drying and filtering 11 is connected with the outlet of dew eliminating tube 10, and the outlet of device for drying and filtering 11 is connected with the entrance of switch unit 3.
Dew eliminating tube 10, for preventing dew eliminating tube 10 globule that condenses around, evaporates the globule generating around.Device for drying and filtering 11 is for the moisture of absorption refrigeration agent.
Particularly, during refrigeration, gaseous refrigerant is drawn into compressor 1 from the first evaporimeter 5 or the second evaporimeter 8.Gaseous refrigerant is compacted into the steam of HTHP in compressor 1.Steam enters condenser 2 heat radiations from compressor 1, is changed to the liquid state of medium temperature and medium pressure, then by switch unit 3, optionally enters the first capillary 4 or the second capillary 7 through dew eliminating tube 10 and device for drying and filtering 11.If now the Current Temperatures of refrigerating chamber is equal to or less than refrigerating chamber stopping temperature and the first evaporimeter 5 in defrost process time; first of switch unit 3 the outlet is connected with the entrance of the second capillary 7, and compressor 1, condenser 2, dew eliminating tube 10, device for drying and filtering 11, switch unit 3, the second capillary 7 and the second evaporimeter 8 form Yi Ge peripheral passage.Now, the refrigerating chamber of 1 pair of refrigeration plant of compressor freezes.
According to the refrigeration plant of the embodiment of the present invention, when the refrigerating chamber of refrigeration plant carries out defrost, the switch unit of refrigeration plant is switched to freezing side, thereby can guarantee pressure balance.And cold-producing medium residual in condenser can flow to refrigerating chamber by switch unit, make refrigerating chamber when defrost, do not have unnecessary cold-producing medium to disturb, thereby improve the defrost efficiency of refrigerating chamber.In addition, because refrigerant residual in condenser is not by refrigerating chamber, thereby can reduce flowing of refrigeration indoor actual temperature, reduce the actual temperature of refrigerating chamber and the deviation of design temperature, thereby can realize the accurate control of temperature.
In the description of this description, the description of reference term " embodiment ", " some embodiment ", " example ", " concrete example " or " some examples " etc. means to be contained at least one embodiment of the present invention or example in conjunction with specific features, structure, material or the feature of this embodiment or example description.In this manual, the schematic statement of above-mentioned term is not necessarily referred to identical embodiment or example.And the specific features of description, structure, material or feature can be with suitable mode combinations in any one or more embodiment or example.
Although illustrated and described embodiments of the invention, for the ordinary skill in the art, be appreciated that without departing from the principles and spirit of the present invention and can carry out multiple variation, modification, replacement and modification to these embodiment, scope of the present invention is by claims and be equal to and limit.
Claims (8)
1. the switch unit control method in refrigerator defrost process, is characterized in that, comprises the steps:
Detect the Current Temperatures of refrigerating chamber and the Current Temperatures of refrigerating chamber of refrigerator;
Whether the Current Temperatures that judges the refrigerating chamber of described refrigerator is equal to or higher than refrigerating chamber turn-on temperature, if so, judges whether the Current Temperatures of the refrigerating chamber of described refrigerator is equal to or less than refrigerating chamber stopping temperature;
The refrigerator evaporator that is equal to or less than described refrigerating chamber stopping temperature and described refrigerator when the Current Temperatures of refrigerating chamber of the described refrigerator of judgement is in defrost process time, control the switch unit of described refrigerator and the freezing capillary of described refrigerator is connected, wherein, described switch unit is optionally communicated with the freezing capillary of described refrigerator and the refrigeration capillary of described refrigerator;
If judge that the Current Temperatures of the refrigerating chamber of described refrigerator is equal to or less than refrigerating chamber turn-on temperature, whether the Current Temperatures that judges the refrigerating chamber of described refrigerator is equal to or less than refrigerating chamber turn-on temperature, if the Current Temperatures of the refrigerating chamber of described refrigerator is equal to or less than described refrigerating chamber turn-on temperature, control the switch unit of described refrigerator and the freezing capillary of described refrigerator is connected.
2. switch unit control method as claimed in claim 1, is characterized in that, adopts temperature sensor to detect the Current Temperatures of the refrigerating chamber of described refrigerator.
3. switch unit control method as claimed in claim 1, is characterized in that, when the Current Temperatures of the refrigerating chamber of described refrigerator is equal to or higher than refrigerating chamber turn-on temperature, described switch unit is optionally communicated with the refrigeration capillary of described refrigerator.
4. switch unit control method as claimed in claim 1, is characterized in that, described switch unit is magnetic valve.
5. a refrigeration plant, is characterized in that, comprising:
Casing, is limited with refrigerating chamber and refrigerating chamber in described casing;
Door body, described door body is arranged on described casing;
Compressor, described compressor is positioned at the bottom rear side of described refrigerating chamber;
Condenser, the entrance of described condenser is connected with the outlet of described compressor;
Switch unit, described switch unit has entrance, the first outlet and the second outlet;
The first capillary, described the first entrance capillaceous is connected with the first outlet of described switch unit;
The first evaporimeter, described the first evaporimeter is arranged on the back of described refrigerating chamber, and the entrance of described the first evaporimeter is connected with described the first outlet capillaceous, and the outlet of described the first evaporimeter is connected with the entrance of described compressor;
The first temperature sensor, described the first temperature sensor is arranged in described refrigerating chamber, for detection of the Current Temperatures of described refrigerating chamber, and generates the first temperature detection signal;
The second capillary, described the second entrance capillaceous is connected with the second outlet of described switch unit;
The second evaporimeter, described the second evaporimeter is arranged on the back of described refrigerating chamber, and the entrance of described the second evaporimeter is connected with described the second outlet capillaceous, and the outlet of described the second evaporimeter is connected with the entrance of described compressor,
The second temperature sensor, described the second temperature sensor is arranged in described refrigerating chamber, for detection of the Current Temperatures of described refrigerating chamber, and generates the second temperature detection signal;
Control module, described control module respectively with described the first temperature sensor, described the second temperature sensor is connected with described switch unit, for receiving described the first temperature detection signal and described the second temperature detection signal to obtain the Current Temperatures of described refrigerating chamber and the Current Temperatures of described refrigerating chamber, and whether the Current Temperatures that judges the refrigerating chamber of described refrigerator is equal to or higher than refrigerating chamber turn-on temperature, if, whether the Current Temperatures that judges the refrigerating chamber of described refrigerator is equal to or less than refrigerating chamber stopping temperature, when the Current Temperatures of described refrigerating chamber is equal to or less than refrigerating chamber stopping temperature and described the first evaporimeter in defrost process time, the second outlet of controlling described switch unit is connected with described the second entrance capillaceous, and be equal to or less than after refrigerating chamber turn-on temperature at the Current Temperatures of the described refrigerating chamber of judgement, whether the Current Temperatures that judges described refrigerating chamber is equal to or less than refrigerating chamber turn-on temperature, if the Current Temperatures of described refrigerating chamber is equal to or less than described refrigerating chamber turn-on temperature, the second outlet of controlling described switch unit is connected with described the second capillary.
6. refrigeration plant as claimed in claim 5, is characterized in that, also comprises:
Dew eliminating tube, the entrance of described dew eliminating tube is connected with the outlet of described condenser;
Device for drying and filtering, the entrance of described device for drying and filtering is connected with the outlet of described dew eliminating tube, and the outlet of described device for drying and filtering is connected with the entrance of described switch unit.
7. the refrigeration plant as described in claim 5 or 6, is characterized in that, described switch unit is magnetic valve.
8. refrigeration plant as claimed in claim 5, is characterized in that, described refrigeration plant is refrigerator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110330216.0A CN102506557B (en) | 2011-10-26 | 2011-10-26 | Refrigeration equipment and switching unit control method in defrosting process of refrigeration equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110330216.0A CN102506557B (en) | 2011-10-26 | 2011-10-26 | Refrigeration equipment and switching unit control method in defrosting process of refrigeration equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102506557A CN102506557A (en) | 2012-06-20 |
| CN102506557B true CN102506557B (en) | 2014-01-15 |
Family
ID=46218668
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110330216.0A Active CN102506557B (en) | 2011-10-26 | 2011-10-26 | Refrigeration equipment and switching unit control method in defrosting process of refrigeration equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102506557B (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103868320B (en) * | 2013-09-27 | 2016-03-16 | 海信（山东）冰箱有限公司 | A kind of control method of protection compressor of refrigerator |
| CN106247737B (en) * | 2016-09-08 | 2019-04-02 | 江苏白雪电器股份有限公司 | Double temperature double control refrigeration system and dual compartment refrigerator and its control method |
| CN107014149B (en) * | 2017-04-01 | 2020-04-14 | 南京创维家用电器有限公司 | Refrigerator and control method thereof |
| CN107084577B (en) * | 2017-06-27 | 2021-02-02 | 海信容声(广东)冰箱有限公司 | Control method and control device of dual-system refrigerator and refrigerator |
| CN107388686B (en) * | 2017-06-29 | 2020-03-31 | 青岛海尔股份有限公司 | Refrigeration control method of refrigerator and computer storage medium |
| CN107289710B (en) * | 2017-06-29 | 2019-09-27 | 青岛海尔股份有限公司 | The refrigeration control method and computer storage medium of refrigerator |
| CN108375265A (en) * | 2018-02-28 | 2018-08-07 | 合肥美菱股份有限公司 | A kind of defrosting system of refrigerator and its control method |
| CN114132478B (en) * | 2021-11-04 | 2023-05-26 | 珠海格力电器股份有限公司 | Control method, device, controller, system and equipment of refrigeration system |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1289033A (en) * | 1999-09-21 | 2001-03-28 | 东芝株式会社 | Refrigerater |
| JP2001133113A (en) * | 1999-11-01 | 2001-05-18 | Matsushita Refrig Co Ltd | Refrigerator |
| JP2003035481A (en) * | 2001-07-23 | 2003-02-07 | Hitachi Ltd | Refrigerator |
| JP2003314946A (en) * | 2002-04-22 | 2003-11-06 | Matsushita Refrig Co Ltd | Refrigerator |
| CN1515858A (en) * | 1998-06-29 | 2004-07-28 | 东芝株式会社 | Control method for refrigerator |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1047827A (en) * | 1996-08-06 | 1998-02-20 | Matsushita Refrig Co Ltd | Freezing refrigerator |
-
2011
- 2011-10-26 CN CN201110330216.0A patent/CN102506557B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1515858A (en) * | 1998-06-29 | 2004-07-28 | 东芝株式会社 | Control method for refrigerator |
| CN1289033A (en) * | 1999-09-21 | 2001-03-28 | 东芝株式会社 | Refrigerater |
| JP2001133113A (en) * | 1999-11-01 | 2001-05-18 | Matsushita Refrig Co Ltd | Refrigerator |
| JP2003035481A (en) * | 2001-07-23 | 2003-02-07 | Hitachi Ltd | Refrigerator |
| JP2003314946A (en) * | 2002-04-22 | 2003-11-06 | Matsushita Refrig Co Ltd | Refrigerator |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102506557A (en) | 2012-06-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102506557B (en) | Refrigeration equipment and switching unit control method in defrosting process of refrigeration equipment | |
| CN106123450B (en) | The refrigeration control method and refrigerator of refrigerator | |
| CN103017392B (en) | Refrigerator refrigerating system and refrigerator with same | |
| CN102095270A (en) | Refrigerating system of air cooling refrigerator and refrigerating method thereof | |
| CN102128509B (en) | Low-noise refrigerating system and refrigerating method thereof | |
| CN104964400A (en) | Air conditioner and control method thereof | |
| CN102331153B (en) | Refrigeration system, and control method thereof, and refrigeration equipment with refrigeration system | |
| CN102589182B (en) | Refrigeration system, refrigerator having the refrigeration system and controlling method of the refrigerator | |
| CN105157320A (en) | Refrigerator | |
| CN102798245B (en) | Refrigerating equipment, refrigerating system and deep refrigerating method of refrigerating equipment | |
| CN103574959A (en) | Refrigeration system of double-temperature refrigerator and double-temperature refrigerator | |
| CN113883681A (en) | Control method for refrigeration system and refrigeration system | |
| CN202420014U (en) | Refrigerating system and refrigerator with same | |
| CN201992900U (en) | Low-noise refrigerator | |
| CN102679665A (en) | Refrigerator and control method thereof | |
| CN102798261B (en) | Refrigerating system and refrigerating equipment having same | |
| CN102650488B (en) | Refrigerator and control method thereof | |
| CN102338513B (en) | Refrigerating system and refrigerator with same | |
| CN102287975A (en) | Refrigerator refrigerating system, refrigerator and control method of refrigerator | |
| CN106091192A (en) | Air conditioning system and control method thereof | |
| KR20150058995A (en) | Refrigerator and control method for the same | |
| CN203083191U (en) | Refrigerator refrigerating system and refrigerator with same | |
| CN203657258U (en) | Refrigerating system and refrigerator provided with same | |
| CN101922846A (en) | Control system for single-door frostless refrigerator | |
| CN110319542B (en) | Unloading start-stop control method of large-displacement variable-frequency multi-split system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C53 | Correction of patent for invention or patent application | ||
| CB02 | Change of applicant information |
Address after: 230601 Hefei Changjiang Road, Anhui, No. 669 Applicant after: Hefei Midea Refrigerator Co., Ltd. Applicant after: Hefei Hualing Co., Ltd. Address before: 230601 Hefei Changjiang Road, Anhui, No. 669 Applicant before: Hefei Media Rongshida Refrigerator Co., Ltd. Applicant before: Hefei Hualing Co., Ltd. |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: APPLICANT; FROM: HEFEI MEDIA RONGSHIDA REFRIGERATOR CO., LTD. TO: HEFEI MIDEA REFRIGERATORCO., LTD. |
|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |