CN102102933B - The method of refrigerator and its operation of control - Google Patents
The method of refrigerator and its operation of control Download PDFInfo
- Publication number
- CN102102933B CN102102933B CN201010535001.8A CN201010535001A CN102102933B CN 102102933 B CN102102933 B CN 102102933B CN 201010535001 A CN201010535001 A CN 201010535001A CN 102102933 B CN102102933 B CN 102102933B
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- Prior art keywords
- refrigerating chamber
- refrigerator
- compressor
- evaporator
- flow transition
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D11/00—Self-contained movable devices, e.g. domestic refrigerators
- F25D11/02—Self-contained movable devices, e.g. domestic refrigerators with cooling compartments at different temperatures
- F25D11/022—Self-contained movable devices, e.g. domestic refrigerators with cooling compartments at different temperatures with two or more evaporators
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
- F25B41/20—Disposition of valves, e.g. of on-off valves or flow control valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D29/00—Arrangement or mounting of control or safety devices
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2400/00—General features or devices for refrigeration machines, plants or systems, combined heating and refrigeration systems or heat-pump systems, i.e. not limited to a particular subgroup of F25B
- F25B2400/19—Pumping down refrigerant from one part of the cycle to another part of the cycle, e.g. when the cycle is changed from cooling to heating, or before a defrost cycle is started
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2600/00—Control issues
- F25B2600/25—Control of valves
- F25B2600/2511—Evaporator distribution valves
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Devices That Are Associated With Refrigeration Equipment (AREA)
- External Artificial Organs (AREA)
Abstract
Disclose a kind of refrigerator, wherein evaporimeter is separately mounted in each in refrigerating chamber and refrigerating chamber, to control the operation of refrigerating chamber and refrigerating chamber independently, and discloses the method for the operation controlling this refrigerator.When refrigerator starts to operate with cardiopulmonary bypass in beating heart, first perform the operation of refrigerating chamber, to adopt triple valve to change cold-producing medium, to perform the operation of refrigerating chamber and refrigerating chamber independently, realize energy-conservation thus.And, eliminating the check-valves for preventing refrigerant flow direction freezer evaporator, realizing the reduction of manufacturing cost thus.
Description
Technical field
Each embodiment relates to a kind of refrigerator, and wherein evaporimeter is arranged separately in each in refrigerating chamber and refrigerating chamber, to control the operation of refrigerating chamber and refrigerating chamber independently, and relates to the method for the operation controlling this refrigerator.
Background technology
Usually, refrigerator is so a kind of equipment, its application is used for the conventional refrigeration cycle of circulating refrigerant wherein, so that the cold air produced by the heat around the absorption when being in liquid cold-producing medium evaporation is supplied to storeroom, as refrigerating chamber and refrigerating chamber, with by food long-time storage under fresh state.Refrigerating chamber is maintained at about the low temperature of-20 DEG C, and refrigerating chamber is maintained at about the low temperature of 3 DEG C.
In these refrigerators, disclosed the refrigerator of cardiopulmonary bypass in beating heart type, wherein evaporimeter is arranged separately in each in refrigerating chamber and refrigerating chamber, and adopts triple valve to control the operation of refrigerating chamber and refrigerating chamber independently.
The refrigerator of cardiopulmonary bypass in beating heart type realizes the operation of refrigerating chamber independent of the operation of refrigerating chamber, and the high evaporation temperature of therefore Keep cool room, improves the energy efficiency during refrigerating chamber operation thus.But, in the refrigerator of cardiopulmonary bypass in beating heart type, because the temperature of freezer evaporator is more much lower than the temperature of refrigerator evaporator, the cold-producing medium of fixed amount moves to freezer evaporator, and be trapped between compressor operation withholding period in freezer evaporator, during the next operation of refrigerating chamber, cold-producing medium becomes not enough thus.
Therefore, in the refrigerator of the cardiopulmonary bypass in beating heart type of routine, after the operation of refrigerating chamber and refrigerating chamber, execution refrigerant-recovery operates, complete the operation of compressor subsequently, in refrigerant-recovery operation, the cold-producing medium being distributed in low pressure components (freezer evaporator and refrigerator evaporator) place is transferred to high voltage component (condenser) by operate compressor under the following conditions, namely triple valve is along the passage of both direction, and namely triple valve is at the pathway closure of refrigerating chamber and refrigerating chamber side.
But, operated the cold-producing medium reclaimed by refrigerant-recovery and be reintroduced back in freezer evaporator before the next operation performing refrigerating chamber, during refrigerating chamber operation, therefore still can run into the problem of lack of refrigerant.Therefore, in order to solve this problem, the check-valves for the freezer evaporator preventing the refrigerator of refrigerant flow direction cardiopulmonary bypass in beating heart type is arranged on the exit of freezer evaporator, in case the cold-producing medium that non-return is received is reintroduced in freezer evaporator.
But the installation of check-valves causes the increase of manufacturing cost, and during refrigerating chamber operation, reduce the pressure of cold-producing medium, increase and stream compression ratio, affect the gross efficiency of kind of refrigeration cycle thus.
Summary of the invention
Therefore, an aspect provides a kind of refrigerator, even if omit the check-valves for preventing refrigerant flow direction freezer evaporator in a parallel loop, this refrigerator also can alleviate the lack of refrigerant during refrigerating chamber operation, and provides the method for the operation controlling this refrigerator.
Other side will partly propose in the description that follows, and partly, will be obvious according to described description, or can recognize by putting into practice the present invention.
According to an aspect, a kind of refrigerator, comprising: compressor; Condenser, this condenser is used for the cold-producing medium of condensation by compressor compresses; Refrigerating chamber and refrigerating chamber; Be arranged on respectively in refrigerating chamber and refrigerating chamber, for cooling freezer evaporator and the refrigerator evaporator of refrigerating chamber and refrigerating chamber; Flow transition valve, for according to operator scheme by the flow transition of cold-producing medium to freezer evaporator and refrigerator evaporator; And control unit, for controlling the switching valve that flows, first to perform the operation of refrigerating chamber when refrigerator starts to operate.
Flow transition valve can be the triple valve of the conduit of conduit and freezer evaporator entrance side that is connected to condensator outlet side and the conduit of refrigerator evaporator entrance side.
If judge the operation needing refrigerating chamber, then control unit can control the switching valve that flows, to perform refrigerant-recovery operation after refrigerating chamber operation, performs the operation of refrigerating chamber subsequently.
Can when along institute directive flow transition valve passage all close by operate compressor perform refrigerant-recovery operate, so that the cold-producing medium being distributed in freezer evaporator place is moved to condenser.
According to another aspect, a kind of refrigerator, comprising: refrigerating chamber and refrigerating chamber; Freezer evaporator and refrigerator evaporator, be arranged in refrigerating chamber and refrigerating chamber respectively, for cooling refrigerating chamber and refrigerating chamber; Flow transition valve, for by the flow transition of cold-producing medium in freezer evaporator and refrigerator evaporator, to form the independent cardiopulmonary bypass in beating heart controlling the operation of refrigerating chamber and the operation of refrigerating chamber; And control unit, for controlling the switching valve that flows, first to perform refrigerating chamber operation in a parallel loop.
After the operation of refrigerating chamber, control unit can perform refrigerant-recovery operation, to reclaim the cold-producing medium being distributed in freezer evaporator place.
According to another aspect, a kind of refrigerator, comprising: refrigerating chamber and refrigerating chamber; Freezer evaporator and refrigerator evaporator, be arranged in refrigerating chamber and refrigerating chamber respectively, for cooling refrigerating chamber and refrigerating chamber; Flow transition valve, for according to operator scheme by the flow transition of cold-producing medium in freezer evaporator and refrigerator evaporator; And control unit, for controlling the switching valve that flows, to perform refrigerant-recovery operation before the operation of refrigerating chamber.
This refrigerator can also comprise compressor and for the condenser of condensation by the cold-producing medium of compressor compresses, wherein flow transition valve is the triple valve of the conduit being connected to the conduit of condensator outlet side and the conduit of freezer evaporator entrance side and refrigerating chamber evaporation entrance side.
Can when along institute directive flow transition valve passage all close by operate compressor perform refrigerant-recovery operate, so that the cold-producing medium being distributed in low pressure components place is moved to high voltage component.
Low pressure components can be freezer evaporator, and high voltage component can be condenser.
According to another aspect, a kind of refrigerator, comprising: refrigerating chamber and refrigerating chamber; Freezer evaporator and refrigerator evaporator, be arranged in refrigerating chamber and refrigerating chamber respectively, for cooling refrigerating chamber and refrigerating chamber; Flow transition valve, for by the flow transition of cold-producing medium in freezer evaporator and refrigerator evaporator, to form the independent cardiopulmonary bypass in beating heart controlling the operation of refrigerating chamber and the operation of refrigerating chamber; And control unit, for controlling the switching valve that flows, to perform refrigerant-recovery operation in a parallel loop before the operation of refrigerating chamber.
According to another aspect, a kind of method controlling the operation of refrigerator, this refrigerator is provided with refrigerating chamber and refrigerating chamber and for the freezer evaporator that cools refrigerating chamber and refrigerating chamber and refrigerator evaporator, and the method comprises the steps: to judge whether to be time of the operation starting refrigerator; And if judgement is the time of the operation starting refrigerator, then first perform the operation of refrigerating chamber.
The step performing the operation of refrigerating chamber can by opening for being realized to the passage along refrigerating chamber direction of the flow transition valve in freezer evaporator and refrigerator evaporator by the flow transition of cold-producing medium.
Described method can also comprise the operation judging whether to need refrigerating chamber, if and judgement needs the operation of refrigerating chamber, then when along institute directive flow transition valve passage all close perform refrigerant-recovery operate, to reclaim the cold-producing medium being distributed in freezer evaporator place, then perform the operation of refrigerating chamber.
According to another aspect, a kind of method controlling the operation of refrigerator, this refrigerator is provided with refrigerating chamber and refrigerating chamber and for the freezer evaporator that cools refrigerating chamber and refrigerating chamber and refrigerator evaporator, and the method comprises the steps: to judge whether to be time of operation refrigerating chamber; If judge it is the time operating refrigerating chamber, then first perform refrigerant-recovery operation, to reclaim the cold-producing medium being distributed in low pressure components place; And after refrigerant-recovery operation, perform the operation of refrigerating chamber.
Accompanying drawing explanation
By reference to the accompanying drawings, according to the description of ensuing embodiment, these and/or other side will become obvious, and be easier to understand, in the accompanying drawings:
Fig. 1 is the front view of diagram according to a kind of outward appearance of refrigerator of embodiment;
Fig. 2 is the front view of diagram according to the internal structure of the refrigerator of this embodiment;
Fig. 3 is the schematic diagram of diagram according to the cardiopulmonary bypass in beating heart system of the refrigerator of this embodiment;
Fig. 4 controls block diagram according to the operation of the refrigerator of this embodiment;
Fig. 5 is the flow chart that diagram controls according to the method for the operation of the refrigerator of this embodiment; And
Fig. 6 is the schematic diagram of diagram according to the cardiopulmonary bypass in beating heart Control timing sequence of the refrigerator of this embodiment.
Detailed description of the invention
Present by detailed reference the embodiments of the present invention, the example of each embodiment illustrates in the accompanying drawings, and wherein identical in the text Reference numeral represents identical element.
Fig. 1 is the front view of diagram according to a kind of outward appearance of refrigerator of embodiment, and Fig. 2 is the front view of diagram according to the internal structure of the refrigerator of this embodiment.
As illustrated in fig. 1 and 2, comprise main body 10 according to the refrigerator of this embodiment of the present invention, this main body is provided with the refrigerating chamber 12 and refrigerating chamber 14 that are formed in wherein and is hinged to main body 10 to open and close the door 13 and 15 of refrigerating chamber 12 and refrigerating chamber 14 respectively.
Refrigerating chamber 12 and refrigerating chamber 14 are separated by dividing plate 11 level with one another be arranged in main body 10, to prevent the cold air of each room 12 and 14 from mixing, freezer evaporator 32 and refrigerator evaporator 34 for cooling each room 12 and 14 are arranged on the rear portion place of refrigerating chamber 12 and refrigerating chamber 14 respectively.
Fig. 3 is the schematic diagram of diagram according to the cardiopulmonary bypass in beating heart system of the refrigerator of this embodiment.
As shown in Figure 3, compressor 20, condenser 22, heat pipe 24, flow transition valve 26, refrigerating chamber expansion gear 28, refrigerating chamber expansion gear 30, freezer evaporator 32 and refrigerator evaporator 34 is comprised according to the cardiopulmonary bypass in beating heart system of the refrigerator of this embodiment.
The suction refrigerant compression being in low-temp low-pressure gaseous state is become high pressure gaseous by compressor 20, discharges the cold-producing medium being in high pressure gaseous subsequently.
Condenser 22 is connected to the discharge pipe at the high voltage component place of compressor 20, and by the condensation of refrigerant being in high pressure gaseous compressed by compressor 20 being become liquid with the heat exchange of surrounding air.
Heat pipe 24 extends from condenser 22, and is connected to the entrance of flow transition valve 26.The main body 10 that heat pipe 24 prevents the heat radiation of cold-producing medium due to flowing in heat pipe 24 from causing inside and outside between dew the gathering on main body 10 front surface that cause of the temperature difference.
Flow transition valve 26 is selected by a passage of the cold-producing medium of condenser 22 according to operator scheme (refrigerating chamber operator scheme or refrigerating chamber operator scheme), and comprises the triple valve by an entrance and two export mixes.A described entrance is connected to heat pipe 24, and described two outlets are connected to refrigerating chamber expansion gear 28 and refrigerating chamber expansion gear 30.The passage of refrigerating chamber 12 side, namely the passage being connected to refrigerating chamber expansion gear 28 is called the passage along F direction, the passage of refrigerating chamber 14 side, namely the passage being connected to refrigerating chamber expansion gear 30 is called the passage along R direction, the opening and closing of the passage of refrigerating chamber 12 side are called the ON/OFF of the passage along F direction, and the opening and closing of the passage of refrigerating chamber 14 side are called the ON/OFF of the passage along R direction.
Refrigerating chamber expansion gear 28 and refrigerating chamber expansion gear 30 will de-compress into by expanding the two phase refrigerant comprising liquid phase ingredient and gas phase composition being in low temperature by the cold-producing medium being in room temperature high-pressure liquid state of condenser 22 condensation by flow transition valve 26.Each in refrigerating chamber expansion gear 28 and refrigerating chamber expansion gear 30 comprises capillary or expansion valve.
The cold-producing medium being in low-temp low-pressure liquid state expanded by refrigerating chamber expansion gear 28 and refrigerating chamber expansion gear 30 is evaporated to gaseous state by freezer evaporator 32 and refrigerator evaporator 34, to supply cold air, and with cardiopulmonary bypass in beating heart type operations, make the operation of refrigerating chamber 12 and refrigerating chamber 14 utilize the independent execution of flow transition valve 26.
Fig. 4 controls block diagram according to the operation of the refrigerator of this embodiment of the present invention.This refrigerator comprises input block 50, sensing cell 52, control unit 54, driver element 56 and memory cell 58.
Input block 50 allows user to control unit 54 input of control commands, and comprise multiple button, as the mode selecting button of the operation for controlling refrigerating chamber 12 and refrigerating chamber 14, and for the temperature setting button of the target temperature that sets refrigerating chamber 12 and refrigerating chamber 14.
Sensing cell 52 senses the internal temperature of refrigerating chamber 12 and refrigerating chamber 14, and sensing temperature is sent to control unit 54.These temperature are used as the data of the mode of operation (synchronous mode of operation or independent manipulation mode) judging refrigerating chamber 12 and refrigerating chamber 14.
Control unit 54 is the microcomputer of the whole operation for controlling refrigerator.Control unit 54 judges the mode of operation of refrigerating chamber 12 and refrigerating chamber 14 according to the internal temperature of the refrigerating chamber 12 sensed by sensing cell 52 and refrigerating chamber 14, therefore controls the operation of refrigerator in cardiopulmonary bypass in beating heart mode, makes refrigerating chamber 12 and refrigerating chamber 14 independent operating.
In addition, control unit 54 controls flowing switching valve 26, first to perform the operation of refrigerating chamber 12 when refrigerator starts to operate, therefore can omit the refrigerant-recovery operation usually performed when the operation of compressor 20 completes.And the refrigerant-recovery operation that the cold-producing medium being wherein distributed in freezer evaporator 32 place is passed to high voltage component (condenser) just performs after the operation performing refrigerating chamber 12.Therefore, do not need to reclaim the cold-producing medium being distributed in condenser 22 place during refrigerating chamber 12 operates, therefore can shorten the refrigerant-recovery operating time.Refrigerant-recovery operation is the operation of cold-producing medium of reallocating simply.Due in refrigerant-recovery operation, compressor 20 operates but does not produce cooling effect, therefore wishes to minimize the refrigerant-recovery operating time.Therefore, the refrigerant-recovery operation performed when the operation of compressor 20 completes is eliminated according to the refrigerator of this embodiment, and compared with conventional practices, shorten the operating time (refrigerant-recovery operating time) that compressor 20 does not produce cooling effect, realize thus energy-conservation (about 2%).And, always first performing the operation of refrigerating chamber 12 according to the refrigerator of this embodiment, because omitted herein the check-valves for preventing refrigerant flow direction freezer evaporator 32, realizing the reduction of manufacturing cost thus.
And, control unit 54 judges whether to need refrigerating chamber 14 is operated, control flowing switching valve 26, to perform the refrigerant-recovery operation for reclaiming the cold-producing medium being distributed in freezer evaporator 32 place when needing to make refrigerating chamber 14 operate, perform the operation of refrigerating chamber 14 subsequently, the deficiency of cold-producing medium can not be produced thus during refrigerating chamber 14 operates.
Driver element 56 drives compressor 20 and flow transition valve 26 according to the drive control signal of control unit 54.
Memory cell 58 is according to the mode of operation storing temperature controlling value of the refrigerating chamber 12 judged by control unit 54 and refrigerating chamber 14, and storage operates relevant control factor to cardiopulmonary bypass in beating heart, in the operation of this cardiopulmonary bypass in beating heart, when refrigerator starts to operate, first refrigerating chamber 12 operates, after the operation of refrigerating chamber 12, just performed refrigerant-recovery operation subsequently.
Below, by the effect of the operating process of this refrigerator of description with the method for the operation of this refrigerator of control.
Fig. 5 is the flow chart that diagram controls according to the method for the operation of the refrigerator of this embodiment, and Fig. 6 is the schematic diagram of diagram according to the cardiopulmonary bypass in beating heart Control timing sequence of the refrigerator of this embodiment.
With reference to Fig. 5 and 6, electric power inputs to refrigerator, and sensing cell 52 senses the internal temperature of refrigerating chamber 12 and refrigerating chamber 14, and the internal temperature of sensing is passed to control unit 54.
Subsequently, by the internal temperature of the refrigerating chamber sensed by sensing cell 52 12 and refrigerating chamber 14 and design temperature being compared, control unit 54 judges whether it is the time (operation 100) starting refrigerator operation.
If the internal temperature of refrigerating chamber 12 or refrigerating chamber 14 exceeds set point of temperature or more than design temperature, calculate the load of corresponding room 12 or 14, make compressor 20 operate subsequently according to temperature difference, now, refrigerator starts operation.
As the judged result of operation 100, if judge it is the time that refrigerator starts to operate, then control unit 54 opens the flow transition valve 26 along F direction (direction of refrigerating chamber), as shown in Figure 3, so that first refrigerating chamber 12 operates.In this case, even if in fact do not need the freezing of refrigerating chamber 12, also to first operate refrigerating chamber 12.
When flow transition valve 26 is opened along F direction (direction of refrigerating chamber), cold-producing medium circulates in refrigerating chamber operator scheme, that is, by the sequential loop of compressor 20, condenser 22, heat pipe 24, flow transition valve 26, refrigerating chamber expansion gear 28, freezer evaporator 32 and compressor 20.
Therefore, the cold-producing medium being in high pressure gaseous of discharging from compressor 20 is condensed into high-pressure liquid by condenser 22, is introduced in flow transition valve 26 subsequently via heat pipe 24.
Here, in flow transition valve 26, because refrigerating chamber 12 side is opened along the passage in F direction, then perform the operation of refrigerating chamber 12, the cold-producing medium be wherein incorporated in flow transition valve 26 is introduced in freezer evaporator 32 by refrigerating chamber expansion gear 28, to cool refrigerating chamber 12, return compressor 20 (operation 102) subsequently.
If first refrigerating chamber 12 is done in refrigerating chamber mode of operation when refrigerator starts to operate, then reclaim a large amount of cold-producing mediums being distributed in freezer evaporator 32 place immediately, compared with the regular situation being distributed in the cold-producing medium at condenser place with recovery thus, realize energy-conservation.
And, if judge the operation needing refrigerating chamber 14 after the operation of refrigerating chamber 12, then just after refrigerating chamber 12 operates, control unit 54 performs refrigerant-recovery operation, the cold-producing medium being distributed in freezer evaporator 32 place to be moved to condenser 22 (operation 104).
Refrigerant-recovery operation is performed when the both direction (F direction and R direction) of flow transition valve 26 is all closed and compressor 20 is opened so that the cold-producing medium being distributed in freezer evaporator 32 place is moved to condenser 22.The cold-producing medium that refrigerant-recovery operation is allowed for cooling refrigerating chamber 12 is all used to refrigerated compartment 14, and does not stay in the circulation of cooling refrigerating chamber 12, can not cause the deficiency of the necessary cold-producing medium of refrigerated compartment 14 thus.
Usually, Δ t is about 1 ~ 2 minute the refrigerant-recovery operating time.The refrigerant-recovery operating time is not limited thereto, but can carry out multiple amendment according to the capacity of refrigerator and project organization.
After the cold-producing medium being distributed in freezer evaporator 32 place moves to condenser 22 by refrigerant-recovery operation, control unit 54 opens flow transition valve 26 along R direction (along refrigerating chamber direction), as shown in Figure 3, refrigerating chamber 14 is operated.
When flow transition valve 26 is opened along R direction (along refrigerating chamber direction), cold-producing medium circulates under refrigerating chamber operator scheme, that is, by the sequential loop of compressor 20, condenser 22, heat pipe 24, flow transition valve 26, refrigerating chamber expansion gear 30, refrigerator evaporator 34 and compressor 20.
Therefore, the cold-producing medium being in high pressure gaseous of discharging from compressor 20 is condensed into high-pressure liquid by condenser 22, introduces in flow transition valve 26 subsequently via heat pipe 24.
Here, in flow transition valve 26, because the passage of refrigerating chamber 14 side along R direction is opened, then perform the operation of refrigerating chamber 14, wherein the cold-producing medium introduced in flow transition valve 26 introduces refrigerator evaporator 34 by refrigerating chamber expansion gear 30, with refrigerated compartment 14, return compressor 20 (operation 106) subsequently.
When refrigerating chamber 14 is cooled under refrigerating chamber operator scheme along with above-mentioned flow of refrigerant, the deficiency of cold-producing medium can not be produced.
As mentioned above, cardiopulmonary bypass in beating heart performs in the following sequence: perform the operation of refrigerating chamber 12, refrigerant-recovery operation and the operation of refrigerating chamber 14 when compressor 20 cuts out, to perform the operation of refrigerating chamber 12 and refrigerating chamber 14 independently.Subsequently, judge that compressor cuts out condition and whether meets (operation 108), and if judge that compressor condition of closing meets, then compressor 20 cuts out (operation 110), and cardiopulmonary bypass in beating heart has operated.
As being apparent that according to foregoing description, according to a kind of refrigerator of embodiment with control in the method for operation of this refrigerator, evaporimeter is arranged in each of refrigerating chamber and refrigerating chamber respectively, and, when refrigerator starts to operate in a parallel loop, first perform the operation of refrigerating chamber, change coolant channel to adopt triple valve, to perform the operation of refrigerating chamber and refrigerating chamber independently, realize energy-conservation thus.And, eliminating the check-valves for preventing refrigerant flow direction freezer evaporator, realizing the reduction of manufacturing cost thus, and shorten the operation refrigerating chamber necessary refrigerant-recovery operating time.
Although illustrate and described some embodiments; it will be recognized by those skilled in the art; can change in these embodiments under the condition not departing from principle of the present invention and spirit, protection scope of the present invention limits in claim and their equivalent.
Claims (10)
1. a refrigerator, comprising:
Compressor;
Condenser, described condenser is used for the cold-producing medium of condensation by compressor compresses;
Refrigerating chamber and refrigerating chamber;
Freezer evaporator and refrigerator evaporator, described freezer evaporator and described refrigerator evaporator are arranged in refrigerating chamber and refrigerating chamber respectively, for cooling refrigerating chamber and refrigerating chamber;
Flow transition valve, described flow transition valve be used for according to operator scheme by the flow transition of cold-producing medium in freezer evaporator and refrigerator evaporator; With
Control unit, this control unit is configured to:
When the internal temperature of refrigerating chamber be set temperature exceed assigned temperature time, determine that current is the time starting refrigerator operation, and operate compressor, then control flowing switching valve, thus perform the operation of refrigerating chamber;
When the internal temperature of refrigerating chamber exceeds assigned temperature than design temperature, determine that current is the time starting refrigerator operation, and operate compressor, then control flowing switching valve and make the operation first performing refrigerating chamber, then perform refrigerant-recovery operation, subsequently perform the operation of refrigerating chamber; And
If compressor cuts out condition and is satisfied, then close compressor.
2. refrigerator according to claim 1, wherein flow transition valve is triple valve, and described triple valve is connected to the conduit of the conduit of condensator outlet side and the conduit of freezer evaporator entrance side and refrigerator evaporator entrance side.
3. refrigerator according to claim 1, wherein when along institute directive flow transition valve passage all close, by operate compressor perform refrigerant-recovery operate, so that the cold-producing medium being distributed in freezer evaporator place is moved to condenser.
4. refrigerator according to claim 1, wherein
Described flow transition valve is suitable for by the flow transition of cold-producing medium in freezer evaporator and refrigerator evaporator, to form the independent cardiopulmonary bypass in beating heart controlling the operation of refrigerating chamber and the operation of refrigerating chamber; With
Described control unit is suitable for controlling flowing switching valve, first to perform the operation of refrigerating chamber in a parallel loop.
5. refrigerator according to claim 1, wherein when along institute directive flow transition valve passage all close, by operate compressor perform refrigerant-recovery operate, so that the cold-producing medium being distributed in low pressure components place is moved to high voltage component.
6. refrigerator according to claim 5, wherein said low pressure components is freezer evaporator.
7. refrigerator according to claim 5, wherein said high voltage component is condenser.
8. control a method for the operation of refrigerator, this refrigerator is provided with refrigerating chamber and refrigerating chamber and for the freezer evaporator that cools refrigerating chamber and refrigerating chamber and refrigerator evaporator, the method comprises the steps:
When the internal temperature of refrigerating chamber be set temperature exceed assigned temperature time, determine that current is the time starting refrigerator operation, and operate compressor, then control flowing switching valve, thus perform the operation of refrigerating chamber;
When the internal temperature of refrigerating chamber exceeds assigned temperature than design temperature, then control unit determines that current is the time starting refrigerator operation, and operate compressor, then control flowing switching valve and make the operation first performing refrigerating chamber, then perform refrigerant-recovery operation, subsequently perform the operation of refrigerating chamber; And
If compressor cuts out condition and is satisfied, then close compressor.
9. method according to claim 8, the step wherein performing the operation of refrigerating chamber is realized by the passage in the direction along refrigerating chamber of opening flow transition valve, and described flow transition valve is used for the flow transition of cold-producing medium in freezer evaporator and refrigerator evaporator.
10. method according to claim 9, also be included in along the passage of directive flow transition valve all close when, refrigerant-recovery operation is performed, so that the cold-producing medium being distributed in freezer evaporator place is moved to high voltage component by operate compressor.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-2009-0129359 | 2009-12-22 | ||
| KR1020090129359A KR20110072441A (en) | 2009-12-22 | 2009-12-22 | Refrigerator and method for controlling operation thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102102933A CN102102933A (en) | 2011-06-22 |
| CN102102933B true CN102102933B (en) | 2016-02-24 |
Family
ID=43920715
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010535001.8A Expired - Fee Related CN102102933B (en) | 2009-12-22 | 2010-11-01 | The method of refrigerator and its operation of control |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US20110146303A1 (en) |
| EP (1) | EP2339274A3 (en) |
| KR (1) | KR20110072441A (en) |
| CN (1) | CN102102933B (en) |
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| DE102012221243A1 (en) | 2012-11-21 | 2014-05-22 | BSH Bosch und Siemens Hausgeräte GmbH | Cold apparatus i.e. household cold apparatus, has suction line connecting vaporizer with suction terminal, and another suction line connecting another vaporizer with inlet location, where former line comprises bottleneck at inlet location |
| KR102213634B1 (en) * | 2013-06-27 | 2021-02-08 | 엘지전자 주식회사 | Refrigerator and Control method of the same |
| KR102264917B1 (en) * | 2013-08-06 | 2021-06-15 | 엘지전자 주식회사 | A refrigerator |
| EP2869004B1 (en) * | 2013-11-04 | 2019-05-01 | LG Electronics Inc. | Refrigerator and method for controlling the same |
| DE102014213183A1 (en) | 2014-07-08 | 2016-01-14 | BSH Hausgeräte GmbH | Refrigeration unit with two compressors |
| KR102341711B1 (en) * | 2015-07-02 | 2021-12-21 | 삼성전자주식회사 | Refrigerator and control method thereof |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN102102933A (en) | 2011-06-22 |
| US20110146303A1 (en) | 2011-06-23 |
| EP2339274A3 (en) | 2014-01-08 |
| KR20110072441A (en) | 2011-06-29 |
| EP2339274A2 (en) | 2011-06-29 |
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