CN104677044A - Refrigerator - Google Patents
Refrigerator Download PDFInfo
- Publication number
- CN104677044A CN104677044A CN201410429288.4A CN201410429288A CN104677044A CN 104677044 A CN104677044 A CN 104677044A CN 201410429288 A CN201410429288 A CN 201410429288A CN 104677044 A CN104677044 A CN 104677044A
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- Prior art keywords
- temperature
- rotating speed
- evaporator
- detection part
- cooling fan
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- 238000001816 cooling Methods 0.000 claims abstract description 176
- 238000001514 detection method Methods 0.000 claims abstract description 74
- 230000002401 inhibitory effect Effects 0.000 claims abstract description 61
- 238000005057 refrigeration Methods 0.000 claims abstract description 18
- 238000007710 freezing Methods 0.000 claims abstract description 17
- 230000008014 freezing Effects 0.000 claims abstract description 17
- 230000033228 biological regulation Effects 0.000 claims description 13
- 230000003292 diminished effect Effects 0.000 claims 2
- 238000000034 method Methods 0.000 description 12
- 238000013461 design Methods 0.000 description 7
- 238000012546 transfer Methods 0.000 description 7
- 235000013311 vegetables Nutrition 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 230000007812 deficiency Effects 0.000 description 3
- 235000013305 food Nutrition 0.000 description 3
- 238000009413 insulation Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000003507 refrigerant Substances 0.000 description 3
- 239000000758 substrate Substances 0.000 description 3
- 238000004590 computer program Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 125000006850 spacer group Chemical group 0.000 description 2
- 230000001629 suppression Effects 0.000 description 2
- 230000006837 decompression Effects 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 210000005239 tubule Anatomy 0.000 description 1
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
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D19/00—Arrangement or mounting of refrigeration units with respect to devices or objects to be refrigerated, e.g. infrared detectors
- F25D19/003—Arrangement or mounting of refrigeration units with respect to devices or objects to be refrigerated, e.g. infrared detectors with respect to movable containers
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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
- F25D29/003—Arrangement or mounting of control or safety devices for movable devices
-
- 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
- F25D29/005—Mounting of control devices
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Devices That Are Associated With Refrigeration Equipment (AREA)
Abstract
The invention provides a refrigerator. Power consumption is inhibited, and the temperature inside the refrigerator can be properly maintained. The refrigerator includes a storage box such as a refrigeration chamber or a freezing chamber; a freezing circulation part; a cooling fan for supplying air cooled by the freezing circulation part to the storage box; a storage box temperature detection part (an R sensor, an F sensor) for detecting the temperature of the storage box; an evaporator temperature detection part (an evaporator outlet sensor, an evaporator inlet sensor) for detecting the temperature of an evaporator forming the freezing circulation part; and a control part (a control portion) for controlling and inhibiting the rotating speed of the cooling fan when the temperature (the temperature inside the box), detected by the storage box temperature detection part, of the storage box and the temperature (a temperature difference (delta T) of the temperature of the evaporator), detected by the evaporator temperature detection part moves within a preset allowed range during a preset determined period of time.
Description
Technical field
Embodiments of the present invention relate to a kind of refrigerator.
Background technology
In the past, in refrigerator, be such as described in patent document 1, based on the temperature difference of the temperature inside the box of storage box with the design temperature set by user, carry out the rotating speed of controlled cooling model fan (fan).
Prior art document
Patent document
Patent document 1: Japanese Patent Laid-Open 2013-194981 publication
Summary of the invention
[inventing problem to be solved]
But, in general refrigerator, carry out the control deviation etc. in part manufacture taken into account, such as, when cooling fan, carry out following control: by making rotating speed possess enough and to spare to a certain degree, thus the temperature difference of the temperature inside the box and design temperature is in permissible range.
Therefore, optionally carry out controlled cooling model fan with the rotating speed higher than actual needs sometimes, its result, likely consume unnecessary electric power.But, if suppress power consumption and merely reduce the rotating speed of cooling fan, then likely suitably cannot keep the temperature inside the box.
Therefore, the object of present embodiment is to provide one to suppress power consumption, suitably can keep again the refrigerator of the temperature inside the box.
[means of dealing with problems]
The refrigerator of embodiment comprises: storage box; Freeze cycle (cycle), is connected in sequence compressor, condenser and evaporimeter; Cooling fan, is supplied to described storage box by the air cooled through described freeze cycle; Storage box temperature detection part, detects the temperature of described storage box; Evaporator temperature detection part, detects the temperature of described evaporimeter; And control assembly, when the temperature of the described storage box detected by described storage box temperature detection part and the temperature inside the box, with the temperature of described evaporimeter detected by described evaporator temperature detection part and the temperature difference of evaporator temperature, when passing in the permissible range specified in during the judgement specified, perform the rotating speed inhibitory control of the rotating speed reducing described cooling fan.
Accordingly, can obtain and can suppress power consumption, suitably can keep again the refrigerator of the temperature inside the box.
Detailed description of the invention
Below, referring to figs. 1 through Fig. 6, one embodiment is described.
As shown in Figure 1, the cabinet (cabinet) 12 of refrigerator 10 comprises outer container and interior case, and between this outer container and interior case, be inserted with the heat insulation structural of heat insulation material.Roughly divided by heat insulation spacer body 14 and be separated into 2 spaces in cabinet 12, in present embodiment, cabinet 12 is separated into: the refrigerating space (hereinafter referred to as R space) being positioned at the upper side of refrigerator 10; And be positioned at the reefer space (hereinafter referred to as F space) of lower side.
Specifically, in refrigerator 10, as storage box, be provided with refrigerating chamber 20 and vegetable compartment 22, and be provided with the refrigerating chamber 26 comprising ice-making compartment 24.Wherein, form R space by refrigerating chamber 20 and vegetable compartment 22, form F space by ice-making compartment 24 and refrigerating chamber 26.
In addition, this structure is an example, such as, the configuration of each storeroom also can be adopted different, or ice-making compartment 24 is independent of the structure of refrigerating chamber 26.
At the front surface of refrigerating chamber 20, hinge (hinge) is provided with opening and closing door 20a freely, and at vegetable compartment 22 and refrigerating chamber 26, is respectively arranged with door 22a, 26a of pull-out type.In the bottom of the rear side of refrigerating chamber 26, the i.e. rear side of cabinet 12, be provided with Machine Room 28.In this Machine Room 28, be configured with compressor 30 etc.From refrigerating chamber 20 bottom to the back side on refrigerating chamber 26 top, be provided with the cooling space 32 separated relative to R space and F space.In the bottom of this cooling space 32, be provided with evaporimeter 34, be provided with cooling fan 36 on top.
The rotating speed of this cooling fan 36 periodically can adjust to minimum speed from maximum (top) speed.This cooling fan 36 is to control its rotating speed by control part 68, when being set to maximum (top) speed, make cold air reach maximum in the ability (hereinafter referred to as air supply capacity) of case Inner eycle, when being set to minimum speed, air supply capacity reaches minimum.In addition, cooling fan 36 also can adjust its rotating speed continuously.
The minimum speed of cooling fan 36 is cooling fan 36 minimum speeds in practical use, and the value more than minimum speed in cooling fan 36 specification sets based on the test etc. when manufacturing.Therefore, from as described in refrigerator in the past consider the deviation of cooling fan or cabinet etc. and to set the situation of high level different, the rotating speed of cooling fan 36 can be reduced to can be practical minimum.In present embodiment, the minimum speed of cooling fan 36 is set to 800rpm, and maximum speed is set to 1500rpm.
In the front of cooling fan 36, i.e. the blowout side of cooling fan 36, be provided with air door (damper) mechanism 38.The air door mechanism 38 of present embodiment is provided with: the refrigeration air door (hereinafter referred to as the R air door 39) stream of the air towards side, R space being carried out to opening and closing; And the stream of the air towards side, F space is carried out to the freezing air door (hereinafter referred to as F air door 40) of opening and closing.
And, from R air door 39 upward, be provided with the refrigeration conduit (duct) (hereinafter referred to as R conduit 42) for the air circulation for cooling R space, and from F air door 40 downward, be provided with the cryoablation catheter (hereinafter referred to as F conduit 44) for the air circulation for cooling F space.
In the wall portion of refrigerating chamber 20 rear side, in order to detect the temperature inside the box of refrigerating chamber 20 and the refrigeration temperature sensor (sensor) (hereinafter referred to as R sensor 46) be provided with as refrigerated storage temperature detection part, in the wall portion of refrigerating chamber 26 rear side, in order to measure the temperature inside the box of refrigerating chamber 26 and the freezing temperature sensor (hereinafter referred to as F sensor 48) be provided with as cryogenic temperature detection part.R sensor 46 and F sensor 48 all form storage box temperature detection part.
These R sensors 46 and F sensor 48 the wall portion that position is not limited to rear side is set, as long as can detect the position of the temperature inside the box.
In addition, in the following description, when being described the temperature in R space, sometimes also by the temperature inside the box of refrigerating chamber 20 referred to as R the temperature inside the box, when being described F space, sometimes also by the temperature inside the box of refrigerating chamber 26 referred to as F the temperature inside the box.Also the temperature inside the box detecting vegetable compartment 22 further can be adopted to be used as the structure of R the temperature inside the box.
In evaporimeter 34, in order to detect the surface temperature (hereinafter referred to as evaporator temperature) of evaporimeter 34, and be provided with the evaporimeter temperature sensor 50 as evaporator temperature detection part.This evaporimeter temperature sensor 50 comprises: as the evaporator outlet sensor 50a of outlet temperature detection part, and the temperature detecting the outlet side flowed out from evaporimeter 34 for cold-producing medium is using as exporting evaporator temperature; And as the evaporator inlet sensor 50b of inlet temperature detection part, detect the temperature that flows into the entrance side of evaporimeter 34 for cold-producing medium using as entrance evaporator temperature.Wherein, detect outlet evaporator temperature and be used as described evaporator temperature.
These compressor 30 and evaporimeters 34 etc. as shown in Figure 2, form freeze cycle 54.This freeze cycle 54 is the directions from the ejection side of compressor 30 towards flow of refrigerant, successively condenser 56, transfer valve 58, capillary (capillary tube) 60 and capillary 62, reservoir (accumulator) 64, evaporimeter 34 and suction line (suction pipe) 66 are formed by connecting, on the whole
Form the circulating path for refrigerant circulation.In addition, freeze cycle 54 himself can adopt well-known structure.And capillary can be also not multiple but 1.
In this freeze cycle 54, export in one of them of the transfer valve 58 be connected with condenser 56, be connected with the relatively strong capillary of throttling 60, in another outlet, be connected with the relatively weak capillary of throttling 62.These tubules 60 link into an integrated entity at outlet side with capillary 62, and are connected to the entrance of evaporimeter 34.Throttle mechanism is formed with capillary 62 by these capillaries 60.
At the outlet side of evaporimeter 34, be connected with reservoir 64, suction line 66, and be connected to the suction side of compressor 30.This compressor 30 is the compressors of the variable ratio frequency changer type that rotating speed changes by making operating frequency change.Further, substantially, by improving operating frequency, can cooling capacity being improved, by reducing operating frequency, can cooling capacity be reduced.This compressor 30 is controlled by control part 68 described later.Transfer valve 58 such as comprises triple valve.
Herein, the effect of freeze cycle 54 is described.In freeze cycle 54, cold-producing medium becomes the gas shape of HTHP after compressor 30 compresses, and on the other hand, after condenser 56 dispels the heat, becomes liquid.By transfer valve 58, the flowing of this liquid cold-producing medium switches to capillary 60 or capillary 62, in arbitrary capillary all in the mode easily gasified through decompression, subsequently in evaporimeter 34 gasify, thus, from the air of i.e. flowing cooling space 32 around, heat is deprived.
The refrigerant flow direction reservoir 64 after heat is deprived from surrounding, in this reservoir 64, the cold-producing medium of gas liquid mixture shape is separated into gasiform cold-producing medium and liquid cold-producing medium respectively, only gasiform cold-producing medium returns compressor 30 by suction line 66, and is again become the gas shape of HTHP by compressing.Thus, in cooling space 32, the air of flowing is cooled, and is supplied to R space or F space by cooling fan 36.
So, in the refrigerator 10 of present embodiment, the R cooling cooled R space cools with the F cooled F space and mutually operates with switching.
Next, the electrical structure of refrigerator 10 is described.As shown in Figure 3, the control part 68 carrying out the control of refrigerator 10 is arranged on and controls on substrate 52.On this control part 68, be connected with cooling fan 36, R air door 39, F air door 40, R sensor 46, F sensor 48, evaporator outlet sensor 50a, evaporator inlet sensor 50b, transfer valve 58, compressor 30 etc.
Control part 68 comprises and not shown has central processing unit (Central Processing Unit, CPU), read-only storage (Read Only Memory, and random access memory (Random Access Memory ROM), etc. RAM) microcomputer (micro computer), such as, control whole refrigerator 10 by the computer program (computer program) be stored in ROM etc.This control part 68 is equipped on and is configured on the control substrate 52 (with reference to Fig. 1) on rear side top, Machine Room 28.And control part 68 is associated with present embodiment to perform rotating speed inhibitory control described later.
In addition, though the diagram of omission, on refrigerator 10, be also provided with the guidance panel of the running setting for carrying out the refrigerators such as temperature setting 10 etc., control part 68 controls refrigerator 10 based on the setting from this guidance panel.
Specifically, control part 68 uses freeze cycle 54 to carry out R space the refrigeration cooling (hereinafter referred to as R cooling) cooled and the freezing cooling (cooling hereinafter referred to as F) cooled F space.Now, when carrying out R cooling, the flowing of cold-producing medium being switched to the relatively strong capillary of throttling 60, and R air door 39 opened and F air door 40 is closed, and cooling fan 36 is rotated, thus the cold air cooled through evaporimeter 34 is supplied to R space via R conduit 42.
On the other hand, when carrying out F cooling, the flowing of cold-producing medium being switched to the relatively weak capillary of throttling 62, and R air door 39 closed and F air door 40 is opened, and cooling fan 36 is rotated, thus the cold air cooled through evaporimeter 34 is supplied to F space via F conduit 44.
Next, the effect of described refrigerator 10 is described.
First, with reference to Fig. 4, the basic idea of the rotating speed inhibitory control of the rotating speed of the suppression cooling fan 36 performed in refrigerator 10 is described.
One example of the form that the temperature difference (hereinafter referred to as temperature difference Δ T) that Fig. 4 schematically shows the temperature inside the box and evaporator temperature changes, the longitudinal axis is temperature difference Δ T, and transverse axis is the time (t).In the case of figure 4, moment t0 represents the time point switching described F cooling and cool with R, and moment t1 represents the time point that the holddown of rotating speed inhibitory control terminates, that is, represent the time point that have passed through standby period described later.In addition, freeze cycle 54 carries out the running control corresponding to design temperature.
Further, when the curve G1 shown in Fig. 4, the temperature difference Δ T of the temperature inside the box and evaporator temperature reaches stable state after time tl.In other words, the state representation shown in this curve G1 obtains the state of the balance (balance) of the temperature inside the box and evaporator temperature.On the other hand, even if the state shown in curve G1 can think the rotating speed reducing cooling fan 36, temperature difference Δ T also can continue stable state.
Herein, the state that temperature difference Δ T is stable represents: temperature difference Δ T during the judgement of regulation in the permissible range specified the state of passing.In other words, the variable quantity of the temperature difference Δ T in during the judgement of regulation is to the state of passing in the permissible range of regulation
Represent.And the variable quantity that the state that temperature difference Δ T is stable also comprises temperature difference Δ T is certainly the state of zero.2 minutes are set in the present embodiment during this judgement.And permissible range is redefined in the present embodiment ± fixed value of 1 DEG C.
In present embodiment, measure temperature difference Δ T as described later every 1 minute, the mean value in during obtaining judgement is used as the temperature difference Δ T during this period.
In addition, be an example of setting by the situation being set to 2 minutes during judging, also can set 1 minute or other values such as 5 minutes.And permissible range can be both fixed value as mentioned above, the change correspondingly can carried out with the absolute value of the size of temperature difference Δ T and temperature difference Δ T (hereinafter referred to as | Δ T|) to a certain degree also can be set to.Such as, if | Δ T| is 5 DEG C, then consider permissible range to be set to ± 1 DEG C, if | Δ T| is 10 DEG C, then consider permissible range to be set to ± 1.5 DEG C.In addition, now, permissible range both can have been made periodically to change, permissible range also can be made to change continuously.
Like this, if reduce the rotating speed of cooling fan 36 under the stable state of temperature difference Δ T, then air supply capacity sooner or later can lower than necessary amount, and the temperature inside the box can rise.Now, because the temperature inside the box rises, therefore in order to improve cooling capacity further, and evaporator temperature declines.Therefore, if air supply capacity starts deficiency, then temperature difference Δ T can become large.
Therefore, in rotating speed inhibitory control, under the state that temperature difference Δ T is stable, till judging which kind of degree the rotating speed of cooling fan 36 is reduced to based on temperature difference Δ T.Thus, can be necessary MIN rotating speed by the speed setting of cooling fan 36 according to the situation of real-world operation.
When the curve G2 shown in Fig. 4, temperature difference Δ T diminishes after time tl gradually.This represents that the air cooled through evaporimeter 34 is fully supplied to the state of storage box.Wherein, in other words, the state shown in this curve G2 is the state of the balance not obtaining the temperature inside the box and evaporator temperature, also can think that cooling fan 36 likely can be controlled with the rotating speed higher than actual needs.That is, can think that the state shown in this curve G2 also exists the leeway performing rotating speed inhibitory control.
When the curve G3 shown in Fig. 4, temperature difference Δ T becomes large after time tl gradually.This can think: fully supply is not through the air of evaporimeter 34 cooling, and its result, the temperature inside the box rises.Therefore can think, under the state shown in this curve G3, not obtain the balance of the temperature inside the box and evaporator temperature, therefore must suppress the execution of rotating speed inhibitory control, improve the rotating speed of cooling fan 36.
Based on this kind of idea, in the refrigerator 10 of present embodiment, carry out rotating speed inhibitory control.Below, for the concrete handling process of rotating speed inhibitory control, with refrigerator 10 for main body is described.In addition, because refrigerator 10 is the use that is energized all the time substantially, therefore, following rotating speed inhibitory control is set to the state be energized, and, for the purpose of simplifying the description, suppose the opening and closing without door.
Refrigerator 10 measured temperature difference Δ T every 1 minute, in the rotating speed inhibitory control process shown in Fig. 5, determine whether through 1 minute (S1), if through 1 minute (S1: be (YES)), then measure temperature difference Δ T (S2).Now, refrigerating mode (mode) is F cooling, and therefore, the temperature difference Δ T-phase now measured is when poor in cryogenic temperature.Then, refrigerator 10 determines whether through standby period (S3), if not yet through standby period (S3: no (NO)), then jump to step (step) S1, repeatedly measures temperature difference Δ T every 1 minute.
Herein, so-called standby period, when referring to that have switched R cooling cools with F, during the execution of suppression rotating speed inhibitory control subsequently, as shown in Figure 6, when switching to F cooling from R cooling, standby period is set to 15 minutes, when switching to R cooling from F cooling, standby period is set to 5 minutes.
In addition, the value of standby period is only an example, also can be other values, such as, also can change according to the temperature of the temperature inside the box or design temperature or refrigerator 10 outside etc.
Refrigerator 10 is (S3: yes) when have passed through standby period, judges temperature difference Δ T whether stable (S4), if stable (S4: yes), then judges corresponding cooling fan whether as minimum speed (S5).
If be associated with Fig. 6 to be described, then refrigerator 10 is when moment t10 switches to F to cool from R cooling, while measured temperature difference Δ T while carry out standby every 1 minute, namely until till standby period (step S1, S2) till moment t25, have passed through the moment t25 (step S3: yes) of stand-by time, during the judgement of 2 subsequently minute in (during moment t25 ~ t27), judge temperature difference Δ T whether stable (step S4).
In addition, the variable quantity of the temperature difference Δ T shown in Fig. 6 be with temperature difference Δ T (n) during moment tn with 1 minute before moment tn-1 time the difference of temperature difference Δ T (n-1) that measures represent.
Refrigerator 10, when temperature difference Δ T stablizes during the moment t25 ~ t27 such as shown in Fig. 6 (S4: yes), judges whether the rotating speed of corresponding cooling fan is minimum speed (S5)., in present embodiment, be only provided with 1 cooling fan 36 herein, but in rotating speed inhibitory control, also imagine and such as correspond respectively to R space and F space and the situation being provided with cooling fan independently.Now, be R cooling or F cooling according to current refrigerating mode, the cooling fan as control object is sometimes different, is therefore " corresponding cooling fan " in step s 5.
Refrigerator 10, when the rotating speed of cooling fan 36 is not minimum speed (1000rpm) (S5: no), reduces the rotating speed (S10) of corresponding cooling fan.Now, such as, in Fig. 6, the rotating speed of the cooling fan 36 during moment t27 is 1300rpm, not minimum speed (1000rpm), and therefore the rotating speed of cooling fan 36 reduced for 1 stage and becomes 1200rpm.
When reducing the rotating speed of cooling fan 36, refrigerator 10 determines whether to have passed through 1 minute (S8) and whether refrigerating mode is changed (S13), and carries out standby.And, when refrigerator 10 (S13: no) under the state that refrigerating mode is not changed have passed through 1 minute (S8: yes), measure temperature difference Δ T (S9), and jump to step S4, again repeatedly carry out the judgement (S4) etc. whether temperature difference Δ T is stable.
Now, refrigerator when temperature difference Δ T is unstable during such as moment t27 ~ t29, that is, when temperature difference Δ T exceedes permissible range and changes, does not suppress the rotating speed of cooling fan 36, but still maintains this rotating speed.
And rotating speed when temperature difference Δ T stablizes during moment t29 ~ 31 of such as Fig. 6, because the rotating speed of cooling fan 36 is 1200rpm but not minimum speed, was therefore reduced for 1 stage and is set to 1100rpm by refrigerator 10 again.Further, refrigerator 10 jumps to step S8, repeatedly same process.
In addition, if reduce the rotating speed of cooling fan 36, then optionally and cooling capacity likely becomes not enough state, thus the temperature inside the box can rise.Such as, during the moment t31 ~ t33 shown in Fig. 6, the change quantitative change of temperature difference Δ T is large.Infer that this is: the rotating speed reducing cooling fan 36 when moment t31, cause the undersupply of the air through cooling, its result, the temperature inside the box rises and temperature difference Δ T creates change.
Further, suppose that, during this moment t31 ~ t33, temperature difference Δ T has exceeded set upper limit temperature difference.That is, during moment t31 ~ t33, for temperature difference Δ T is unstable, and the state exceeding set upper limit temperature difference and change.
Therefore, when refrigerator 10 (S4: no) and temperature difference Δ T when temperature difference Δ T is unstable exceed set upper limit temperature difference and become large (S11: yes), the rotating speed (S12) of corresponding cooling fan is improved.Now, as shown in Figure 6, improve the rotating speed of cooling fan 36, result when moment t33, the variable quantity of the temperature difference Δ T in during moment t33 ~ t35 diminishes gradually.
At the time point of moment t35, temperature difference Δ T unsure state (S4: no) in during refrigerator 10 is moment t33 ~ t35, but temperature difference Δ T diminishes (S11: no), if therefore the rotating speed of the cooling fan 36 of correspondence is not minimum speed (S5: no), then reduce the rotating speed (S10) of corresponding cooling fan.Thus, as shown in Figure 6, when moment t35, the rotating speed of cooling fan 36 drops to 1100rpm again.
Subsequently, the process that refrigerator 10 is repeatedly same, at the time point of moment t37, temperature difference Δ T in during moment t35 ~ t37 stable (S4: yes), rotating speed (1100rpm) the not minimum speed (S5: no) of the cooling fan 36 of this time point, therefore reduces the rotating speed (S10) of cooling fan 36 further.
In addition, refrigerator 10 is in the rotating speed inhibitory control shown in Fig. 5, when refrigerating mode is subject to changing (S13: yes), store the rotating speed of the cooling fan 36 under current refrigerating mode, and be previous value (being later called previous value) (S14) under the refrigerating mode after switching by the speed setting of cooling fan 36.Specifically, refrigerator 10 as shown in Figure 6, stores the rotating speed of the cooling fan 36 when cooling from F the moment t40 switching to R to cool, using the rotating speed (1000rpm shown in Fig. 6 label symbol R10) as setting final within F cooling period.This rotating speed finally set is the rotating speed (in Fig. 6 the 1000rpm shown in label symbol R11) set at first when next time switches to F to cool, and becomes the previous value set in step S14.
In the case of fig. 6, switch to R to cool from F cooling refrigerating mode when moment t40, therefore in previous R cools, the rotating speed (in Fig. 6 the 1300rpm shown in label symbol R20) of final setting becomes the previous value (in Fig. 6 the 1300rpm shown in label symbol R21) set in step S14.Therefore, when switching to R to cool when moment t40, the rotating speed of cooling fan 36 is set to 1300rpm.
In addition, when switching refrigerating mode, the design temperature becoming the storage box of cooling object is different, and therefore evaporator temperature also can change certainly.That is, when switching refrigerating mode, temperature difference Δ T will significantly change.
Therefore, refrigerator 10 is (step S13, S14) after refrigerating mode is changed, and measures temperature difference Δ T (step S1, S2), and does not perform the later process of step S4, until till standby period (step S3).That is, refrigerator 10 is when have switched refrigerating mode, and the process of the rotating speed of the change cooling fan 36 suppressing substantial treatment, i.e. step S4 in rotating speed inhibitory control later, till the standby period through regulation.In addition, in the standby period that the execution of rotating speed inhibitory control is suppressed, cooling fan 36 ground same passing ratio-Integrated Derivative (Proportional Integral Derivative, PID) controls to control rotating speed.
And, refrigerator 10 is through standby period (S3: yes), the process that step S4 is later is performed in the same manner as when described F cools, carry out following control of Denging, if that is: temperature difference Δ T is stable, then reduce the rotating speed of cooling fan 36, if temperature difference Δ T becomes large, then improve the rotating speed of cooling fan 36, if temperature difference Δ T diminishes, then reduce the rotating speed of cooling fan 36.
Now, refrigerating mode is R cooling, and the temperature difference Δ T-phase therefore now measured is when poor in refrigerated storage temperature.Subsequently, if refrigerator 10 switches to F to cool again, be then previous value by the speed setting of cooling fan 36, and standby to after through standby period, perform the process that step S4 is later.
In addition, the food materials storage amount in such as refrigerator 10 is less and under the situation of less obstruction circulating cold air, even if the rotating speed of cooling fan 36 to be set to minimum speed, also likely becomes the state that the stable state of temperature difference Δ T or temperature difference Δ T diminish.
Therefore, under state that refrigerator 10 diminishes in the stable state (S4: yes) of temperature difference Δ T or temperature difference Δ T (S4: no and S11: yes), when the rotating speed of cooling fan 36 is minimum speed (S5: yes), reduce rotating speed (operating frequency) (S7) of compressor 30.That is, be considered as the cooling capacity of current point in time for superfluous, and the cooling capacity self of freeze cycle 54 is reduced.Thus, freeze cycle 54, the especially power consumption of compressor 30 are inhibited.
Like this, whether refrigerator 10 stablizes according to temperature difference Δ T in during judging the rotating speed carrying out controlled cooling model fan 36.
According to embodiment described above, play effect as described below.
Refrigerator 10 comprises: the storage boxs such as refrigerating chamber 20 or refrigerating chamber 26; Freeze cycle 54; Cooling fan 36, is supplied to storage box by the air cooled through freeze cycle 54; Storage box temperature detection part (R sensor 46, F sensor 48), detects the temperature of storage box; Evaporator temperature detection part (evaporator outlet sensor 50a, evaporator inlet sensor 50b), detects the temperature of the evaporimeter 34 forming freeze cycle 54; And control assembly (control part 68), when passing in the permissible range specified in the temperature of the storage box detected by storage box temperature detection part and the temperature inside the box and the temperature of evaporimeter 34 detected by evaporator temperature detection part and the difference of evaporator temperature and temperature difference Δ T are during the judgement specified, perform the rotating speed inhibitory control of the rotating speed reducing cooling fan 36.
Thus, under the state that temperature difference Δ T is stable, that is, under the state of the balance of the cool-air feed ability of the cooling capacity and cooling fan 36 that obtain freeze cycle 54 side, the rotating speed of cooling fan 36 can be changed to more slow-speed of revolution side.Therefore, it is possible to suppress the power consumption of cooling fan 36, and the temperature inside the box can be remained suitable temperature.
And by suppressing power consumption in cooling fan 36, the caloric value from cooling fan 36 is minimized, and the rising of the temperature inside the box is suppressed, and therefore can reduce the load of freeze cycle 54.Thus, overall as refrigerator 10, further power saving can be promoted.
The refrigerator 10 of embodiment is provided with refrigerating space (R space) and reefer space (F space), storage box temperature detection part is provided with the refrigerated storage temperature detection part (R sensor 46) of the temperature detecting refrigerating space, and the cryogenic temperature detection part (F sensor 48) of the temperature of detection reefer space, the temperature that control assembly (control part 68) detects the refrigerating space detected by refrigerated storage temperature detection part respectively and the temperature of reefer space that detected by cryogenic temperature detection part are using as the temperature inside the box, and based on the temperature of refrigerating space and the temperature difference of evaporator temperature and refrigerated storage temperature poor, and the temperature of reefer space and the temperature difference of evaporator temperature and cryogenic temperature poor, the storage box of air supply target will be set to as object to perform rotating speed inhibitory control in refrigerating space and reefer space.
Thus, though when exist multiple as the cooling storage box of object and the design temperature of each storage box is different, even if that is, when looking storage box, evaporator temperature is different, also can the rotating speed of controlled cooling model fan 36.That is, power consumption can be suppressed.
The refrigerator 10 of embodiment is when by switching to the air door mechanism 38 of any one in refrigerating space or reefer space to switch air supply target by the stream of the air supplied by cooling fan 36, namely, when refrigerating mode is subject to changing, suppress the execution of rotating speed inhibitory control, till the standby period through regulation.Thus, do not need process when clearly predicting the switching of the refrigerating mode that temperature difference Δ T can change, also can the power consumption in inhibitory control portion 68.
Under the state that the refrigerator 10 of embodiment reaches minimum speed at the rotating speed by performing rotating speed inhibitory control and cooling fan 36, when the temperature difference Δ T of the temperature inside the box and evaporator temperature passes in permissible range, namely, even if under the air supply capacity of cooling fan 36 is set to minimum state, when temperature difference Δ T still stablizes, reduce the operating frequency (rotating speed) of compressor 30.
Thus, when freeze cycle 54 operates with the cooling capacity of surplus, its cooling capacity self can be made to reduce, thus can power consumption be suppressed.Now, the rotating speed for the fan (diagram is omitted) of cooling compressor 30 also can reduce, therefore, it is possible to realize further power saving.
When the temperature difference Δ T of the temperature inside the box and evaporator temperature exceedes set upper limit temperature difference and becomes large, improve the rotating speed of cooling fan 36, therefore, it is possible to suppress air supply capacity and reduce the possibility that the temperature inside the box excessively rises.
The refrigerator 10 of embodiment also comprises: enabling detection part (R open door sensor 20b, F open door sensor 22b), the opening and closing of the door of opening and closing storage box is detected, when making air supply target be switched under the state of opening and closing door not detected by enabling detection part, be the rotating speed set in previous rotating speed inhibitory control by the speed setting of cooling fan 36, and perform rotating speed inhibitory control.Under the state of the opening and closing without door, can think that the storage of food materials in refrigerator 10 etc. does not change.That is, for the situation in the refrigerator such as storage amount of food materials, can think: as long as be the rotating speed of final setting in previous rotating speed inhibitory control by the speed setting of cooling fan 36, temperature difference Δ T just can stablize.
Therefore, when refrigerator 10 have switched refrigerating mode under the state of the opening and closing without door, utilize previous value to drive cooling fan 36.Thereby, it is possible to shorten required till cooling fan 36 reaches the rotating speed of final setting during, in other words, can shorten during cooling fan 36 drives with high rotating speed redundantly, thus power consumption can be suppressed further.
(other embodiments)
The present invention is not limited to described embodiment, can as described belowly be out of shape
Or expansion.And, can by part or all any combination of form illustrative in described embodiment and the form illustrated in variation shown below and extension example.
In one embodiment, illustrate the structure example being provided with 1 evaporimeter 34, but the refrigeration evaporimeter of refrigerating space and the freezing evaporimeter of reefer space also can be set.Such as, also can as shown in Figure 7, the evaporimeter 134 be connected by the capillary 62 relatively weak with throttling is used as freezing evaporimeter, evaporimeter 34 is connected to the relatively strong capillary of throttling 60 and as refrigeration evaporimeter.
And, at each evaporimeter 34, in evaporimeter 134, also the temperature of detection refrigeration evaporimeter 34 can be provided with using refrigeration evaporator temperature detection part (the evaporator outlet sensor 50a as refrigerated storage temperature, evaporator inlet sensor 50b), and the temperature detecting freezing evaporimeter 134 is using refrigerating evaporator temperature detection part (the evaporator outlet sensor 150a as cryogenic temperature, evaporator inlet sensor 150b), when by air door mechanism 38 refrigerating space being set to air supply target, temperature difference based on the temperature of refrigerated storage temperature and refrigeration evaporimeter carries out rotating speed inhibitory control, on the other hand, when by air door mechanism 38 reefer space being set to air supply target, temperature difference based on the temperature of cryogenic temperature and freezing evaporimeter performs rotating speed inhibitory control.
This kind of structure also can obtain the effect same with an embodiment.In addition, when like this in refrigerating space and reefer space, be respectively arranged with special evaporimeter time, also can eliminate standby period when refrigerating mode switches, or shorten standby period.
When the enabling detection part that the opening and closing by the door to opening and closing storage box detects (R open door sensor 20b, F open door sensor 22b) detects the opening and closing of door, can be also initial speed by the speed setting of cooling fan 36.Herein, so-called initial set value both can be initial value when utilizing common PID to control, and also can be the rotating speed preset.
When door is opened wide, usually, cooling fan 36 can stop the rotation.Therefore, cold air interrupts to the supply of storage box, and on the other hand, extraneous air can invade in refrigerator, its result, and the temperature can suspecting storage box can rise.In other words, the temperature difference Δ T that can suspect the temperature inside the box and evaporator temperature can become large.Therefore, by cooling fan 36 being set as initial set value when opening and closing door being detected, can promptly make the temperature inside the box close to design temperature.Now, such as, the door 26a of refrigerating chamber 26 is not opened and closed when the door 20a of refrigerating chamber 20 carries out opening and closing, the rotating speed inhibitory control for refrigerating chamber 26 can also directly be performed.
In one embodiment, illustrate following example: when the temperature difference Δ T of the temperature inside the box and evaporator temperature exceedes set upper limit temperature difference and changes, improve the rotating speed of cooling fan 36, but when temperature difference Δ T exceedes set upper limit temperature difference, also can suppress the execution of rotating speed inhibitory control, or improve the rotating speed of cooling fan 36.
Such as, suppose in during the moment t32 ~ t33 of Fig. 6, temperature difference Δ T exceedes lower limit temperature gradient and passes change greatly, then also can suppress the execution of rotating speed inhibitory control, or improve the rotating speed of cooling fan 36, and need not be standby to the end during judging and moment t33.By so not etc. period to be determined process and improve the rotating speed of cooling fan 36, the temperature inside the box can be reduced rapidly.Certainly, also can suppress the execution of rotating speed inhibitory control, and improve the rotating speed of cooling fan 36.
When temperature difference Δ T is excessive, the supply of cold air is obviously not enough.Further, if no matter whether temperature difference Δ T is excessive all perform rotating speed inhibitory control, although then finally suitable rotating speed can be increased to, must expend time in till suitably keeping the temperature inside the box.Therefore, when temperature difference Δ T is excessive, that is, when the absolute value of temperature difference Δ T | when Δ T| exceedes set upper limit temperature difference, by suppressing the execution of rotating speed inhibitory control, thus cooling in case can be made rapidly.
And, even if when the passing that is changed significantly of temperature difference Δ T becomes large, that is, such as, when the curve G3 temperature difference Δ T shown in Fig. 4 exceedes set upper limit thermograde and rises, by suppressing the execution of rotating speed inhibitory control, also can make cooling in case rapidly.
When the temperature difference Δ T of the temperature inside the box and evaporator temperature is lower than the lower limit temperature difference specified, or, when the lower limit temperature gradient and passing that the temperature difference Δ T of the temperature inside the box and evaporator temperature exceedes regulation diminishes, also can suppress the execution of rotating speed inhibitory control and/or reduce the rotating speed of cooling fan 36.
Such as, suppose in during the moment t33 ~ t34 of Fig. 6, temperature difference Δ T exceedes lower limit temperature gradient and passes and diminish, and also can suppress the execution of rotating speed inhibitory control or reduce the rotating speed of cooling fan 36, and need not be standby to the end during judgement and moment t35.By so not etc. period to be determined process and reduce the rotating speed of cooling fan 36, more promptly can be converted to the low state of power consumption.Certainly, also can suppress the execution of rotating speed inhibitory control, and the rotating speed of cooling fan 36 can be reduced.
As temperature difference Δ T hour, the supply of cold air is obviously enough.That is, as enough hour of temperature difference Δ T, even if do not perform the rotating speed that rotating speed inhibitory control also can reduce cooling fan 36.Thereby, it is possible to more promptly reduce the rotating speed of cooling fan 36, thus power consumption can be suppressed rapidly.
And, even if when the passing that is changed significantly of temperature difference Δ T diminishes, namely, when temperature difference Δ T exceedes set upper limit thermograde and declines, by suppressing the execution of rotating speed inhibitory control, the rotating speed of cooling fan 36 can be reduced fast, thus can power consumption be suppressed.
As evaporator temperature detection part, also can have: inlet temperature detection part (evaporator inlet sensor 50b, 150b), detect and flow into the temperature of the entrance side of evaporimeter (34,134) using as entrance evaporator temperature for cold-producing medium; And outlet temperature detection part (evaporator outlet sensor 50a, 150a), the temperature detecting the outlet side flowed out from evaporimeter (34,134) for cold-producing medium is using as outlet evaporator temperature, and, detect this outlet evaporator temperature using as described evaporator temperature, when entrance evaporator temperature exceedes the gateway ceiling temperature of regulation with the temperature difference of outlet evaporator temperature, the execution of rotating speed inhibitory control can be suppressed.
Entrance evaporator temperature exceedes the gateway ceiling temperature of regulation with the temperature difference Δ T of outlet evaporator temperature, is the underfed of cold-producing medium, the situation of the cooling capacity deficiency of freeze cycle 54.Now, even if temperature difference Δ T stablizes, if reduce rotating speed, then cooling meeting and then become deficiency a little, thus the temperature inside the box likely rises.By in this condition
Suppress the execution of rotating speed inhibitory control, cooling capacity can be prevented not enough.Now, according to the structure being provided with 2 evaporimeters, as long as then suppress the execution of rotating speed inhibitory control based on the gateway ceiling temperature of evaporimeter corresponding to the refrigerating mode of time point therewith.
When under the state that the rotating speed at cooling fan 36 reaches maximum (top) speed, the temperature difference Δ T of the temperature inside the box and evaporator temperature exceedes permissible range and passes when becoming large, also can improve the operating frequency of compressor 30.
Even if be maximum (top) speed by the speed setting of cooling fan 36, temperature difference Δ T is also unstable, can think that the cooling capacity of freeze cycle 54 self is not enough.Therefore, when under the state reaching maximum in the air supply capacity of cooling fan 36, when temperature difference Δ T is unstable, by improving the operating frequency of compressor 30 to improve the cooling capacity of freeze cycle 54, thus can guarantee to make the cooling capacity in case needed for cooling, thus suitably can keep the temperature inside the box.
Come in the structure of dual-purpose as an embodiment arranges 1 cooling fan 36, using cooling fan 36 as object, at the refrigeration cooling fan 36 being provided with refrigerating space independently illustrated in Fig. 7 with the structure of the freezing cooling fan 136 of reefer space, also rotating speed inhibitory control can be performed respectively to refrigeration cooling fan 36 and freezing cooling fan 136.Now, as long as perform rotating speed inhibitory control to the cooling fan corresponding with current refrigerating mode.And, multiple cooling fan also can be set respectively for refrigeration or for freezing.Now, as long as perform rotating speed inhibitory control to all or part of cooling fan corresponding with current refrigerating mode.
Exemplified with the structure of stream being switched the air supplied by cooling fan 36 by air door mechanism 38 in one embodiment, but also can adopt and form respective independently air path for refrigerating space and for reefer space, and the structure of air door mechanism is not set.Now, as long as to be set to the opportunity that refrigerating mode changed the opportunity switched transfer valve 58 (timing).
Various numerical value shown in described each embodiment are the example in embodiment, are not limited to this embodiment.
Some embodiments of the present invention are illustrated, but these embodiments are only illustration, are not intended to limit scope of invention.The embodiment of these novelties can be implemented with other various forms, in the scope of purport not departing from invention, can carry out various omission, replacement, change.These embodiments or its distortion are included in scope of invention or purport, and are included in the scope with its equalization.
Accompanying drawing explanation
Fig. 1 is the vertical profile profile of the structure of the refrigerator schematically showing an embodiment.
Fig. 2 is the figure of the structure of the freeze cycle of the refrigerator schematically showing an embodiment.
Fig. 3 is the figure of the electrical structure of the refrigerator schematically showing an embodiment.
Fig. 4 is the figure of the form that the temperature difference (Δ T) of the refrigerator schematically showing an embodiment changes.
Fig. 5 is the figure of the flow process of the rotating speed inhibitory control of the refrigerator representing an embodiment.
Fig. 6 is the figure of an example of the passing of the temperature difference (Δ T) represented in the refrigerator of an embodiment.
Fig. 7 is the figure of the structure of the freeze cycle of the refrigerator schematically showing other embodiments.
The explanation of symbol:
10: refrigerator
12: cabinet
14: heat insulation spacer body
20: refrigerating chamber (storage box)
20a, 22a, 26a: door
20b:R open door sensor (enabling detection part)
22: vegetable compartment (storage box)
22b:F open door sensor (enabling detection part)
24: ice-making compartment (storage box)
26: refrigerating chamber (storage box)
28: Machine Room
30: compressor
32: cooling space
34,134: evaporimeter
36,136: cooling fan
38: air door mechanism
39:R air door (air door mechanism)
40:F air door (air door mechanism)
42:R conduit (refrigeration conduit)
44:F conduit (cryoablation catheter)
46:R sensor (storage box temperature detection part, refrigerated storage temperature detection part)
48:F sensor (storage box temperature detection part, cryogenic temperature detection part)
50: evaporimeter is with temperature sensor (evaporator temperature detection part)
50a: evaporator outlet sensor (evaporator temperature detection part, outlet temperature detection part)
50b: evaporator inlet sensor (evaporator temperature detection part, inlet temperature detection part)
52: control substrate
54: freeze cycle
56: condenser
58: transfer valve
60,62: capillary
64: reservoir
66: suction line
68: control part (control assembly)
150a: evaporator outlet sensor (evaporator temperature detection part, outlet temperature detection part)
150b: evaporator inlet sensor (evaporator temperature detection part, inlet temperature detection part)
G1, G2, G3: curve
S1 ~ S14: step
T0, t1, t10, t11, t24 ~ t40, t42 ~ t64: moment
Claims (16)
1. a refrigerator, is characterized in that, comprising:
Storage box;
Freeze cycle, is connected in sequence compressor, condenser and evaporimeter;
Cooling fan, is supplied to described storage box by the air cooled through described freeze cycle;
Storage box temperature detection part, detects the temperature of described storage box;
Evaporator temperature detection part, detects the temperature of described evaporimeter; And
Control assembly, when the temperature of the described storage box detected by described storage box temperature detection part and the temperature inside the box, with the temperature of described evaporimeter detected by described evaporator temperature detection part and the difference of evaporator temperature and temperature difference, when passing in the permissible range specified in during the judgement specified, perform the rotating speed inhibitory control of the rotating speed reducing described cooling fan.
2. refrigerator according to claim 1, is characterized in that,
Described storage box is provided with refrigerating space and reefer space,
Described storage box temperature detection part be provided with the temperature that detects described refrigerating space using as refrigerated storage temperature refrigerated storage temperature detection part and detect described reefer space temperature using the cryogenic temperature detection part as cryogenic temperature,
Described control assembly detects the temperature of described refrigerating space and described cryogenic temperature respectively using as described the temperature inside the box, and based on described refrigerated storage temperature and the temperature difference of described evaporator temperature and the temperature difference of the poor and described cryogenic temperature of refrigerated storage temperature and described evaporator temperature and cryogenic temperature poor, the described storage box of air supply target will be set in described refrigerating space and described reefer space as object to perform described rotating speed inhibitory control.
3. refrigerator according to claim 1, is characterized in that,
Described storage box is provided with refrigerating space and reefer space,
Described evaporimeter is provided with the refrigeration evaporimeter of described refrigerating space and the freezing evaporimeter of described reefer space,
Described evaporator temperature detection part is provided with the refrigeration evaporator temperature detection part of the temperature detecting described refrigeration evaporimeter and detects the refrigerating evaporator temperature detection part of temperature of described freezing evaporimeter,
Described control part is when described refrigerating space is set as air supply target, temperature difference based on the temperature of described refrigerated storage temperature and described refrigeration evaporimeter carries out described rotating speed inhibitory control, on the other hand, when described reefer space is set as air supply target, the temperature difference based on the temperature of described cryogenic temperature and described freezing evaporimeter performs described rotating speed inhibitory control.
4. the refrigerator according to Claims 2 or 3, is characterized in that, also comprises:
Air door mechanism, switches to any one in described refrigerating space or described reefer space by the stream of the air supplied by described cooling fan,
Described control part, when being made air supply target be switched by described air door mechanism, suppresses the execution of described rotating speed inhibitory control, till the standby period through regulation.
5. the refrigerator according to Claims 2 or 3, is characterized in that, also comprises:
Enabling detection part, detects the opening and closing of the door of storage box described in opening and closing,
When described control part makes air supply target be switched under the state opening and closing of door not detected by described enabling detection part, be the rotating speed utilizing previous described rotating speed inhibitory control to set by the speed setting of described cooling fan, and perform described rotating speed inhibitory control.
6. the refrigerator according to Claims 2 or 3, is characterized in that, also comprises:
Enabling detection part, detects the opening and closing of the door of storage box described in opening and closing,
The speed setting of described cooling fan, when the opening and closing of door being detected by described enabling detection part, is initial speed by described control part.
7. refrigerator according to claim 1, it is characterized in that, when the temperature difference of described the temperature inside the box and described evaporator temperature exceedes set upper limit temperature difference, or when the temperature difference of described the temperature inside the box and described evaporator temperature exceed set upper limit thermograde and pass become large time, described control part suppresses the execution of described rotating speed inhibitory control, and improves the rotating speed of described cooling fan.
8. the refrigerator according to Claims 2 or 3, it is characterized in that, when the temperature difference of described the temperature inside the box and described evaporator temperature exceedes set upper limit temperature difference, or when the temperature difference of described the temperature inside the box and described evaporator temperature exceed set upper limit thermograde and pass become large time, described control part suppresses the execution of described rotating speed inhibitory control, and improves the rotating speed of described cooling fan.
9. refrigerator according to claim 1, it is characterized in that, when the temperature difference of described the temperature inside the box and described evaporator temperature is lower than the lower limit temperature difference specified, or when the lower limit temperature gradient and passing that the temperature difference of described the temperature inside the box and described evaporator temperature exceedes regulation diminishes, described control part suppresses the execution of described rotating speed inhibitory control, and reduces the rotating speed of described cooling fan.
10. the refrigerator according to Claims 2 or 3, it is characterized in that, when the temperature difference of described the temperature inside the box and described evaporator temperature is lower than the lower limit temperature difference specified, or when the lower limit temperature gradient and passing that the temperature difference of described the temperature inside the box and described evaporator temperature exceedes regulation diminishes, described control part suppresses the execution of described rotating speed inhibitory control, and reduces the rotating speed of described cooling fan.
11. refrigerators according to claim 1, it is characterized in that, described control assembly is under the state making the rotating speed of described cooling fan reach minimum speed by performing described rotating speed inhibitory control, when the temperature difference of described the temperature inside the box and described evaporator temperature is passed and diminished in described permissible range, reduce the operating frequency of described compressor.
12. refrigerators according to Claims 2 or 3, it is characterized in that, described control assembly is under the state making the rotating speed of described cooling fan reach minimum speed by performing described rotating speed inhibitory control, when the temperature difference of described the temperature inside the box and described evaporator temperature is passed and diminished in described permissible range, reduce the operating frequency of described compressor.
13. refrigerators according to claim 1, it is characterized in that, under the state that described control assembly reaches maximum (top) speed at the rotating speed of described cooling fan, the temperature difference of described the temperature inside the box and described evaporator temperature exceedes described permissible range and passes when becoming large, improves the operating frequency of described compressor.
14. refrigerators according to Claims 2 or 3, it is characterized in that, under the state that described control assembly reaches maximum (top) speed at the rotating speed of described cooling fan, the temperature difference of described the temperature inside the box and described evaporator temperature exceedes described permissible range and passes when becoming large, improves the operating frequency of described compressor.
15. refrigerators according to claim 1, is characterized in that,
Described evaporator temperature detection part has inlet temperature detection part and outlet temperature detection part, described inlet temperature detection part detects the temperature that flows into the entrance side of described evaporimeter for cold-producing medium using as entrance evaporator temperature, the temperature that described outlet temperature detection part detects the outlet side flowed out from described evaporimeter for cold-producing medium is using as outlet evaporator temperature, and, described evaporator temperature detection part detects described outlet evaporator temperature using as described evaporator temperature
When the temperature difference of described entrance evaporator temperature and described outlet evaporator temperature exceedes the gateway ceiling temperature of regulation, described control part suppresses the execution of described rotating speed inhibitory control.
16. refrigerators according to Claims 2 or 3, is characterized in that,
Described evaporator temperature detection part has inlet temperature detection part and outlet temperature detection part, described inlet temperature detection part detects the temperature that flows into the entrance side of described evaporimeter for cold-producing medium using as entrance evaporator temperature, the temperature that described outlet temperature detection part detects the outlet side flowed out from described evaporimeter for cold-producing medium is using as outlet evaporator temperature, and, described evaporator temperature detection part detects described outlet evaporator temperature using as described evaporator temperature
When the temperature difference of described entrance evaporator temperature and described outlet evaporator temperature exceedes the gateway ceiling temperature of regulation, described control part suppresses the execution of described rotating speed inhibitory control.
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| JP2013-244943 | 2013-11-27 | ||
| JP2013244943A JP6334146B2 (en) | 2013-11-27 | 2013-11-27 | refrigerator |
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| CN104677044B CN104677044B (en) | 2017-09-08 |
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| CN105115241A (en) * | 2015-09-07 | 2015-12-02 | 合肥美的电冰箱有限公司 | Refrigerator energy-saving control method and refrigerator adopting method |
| CN108369056A (en) * | 2015-11-11 | 2018-08-03 | 依必安派特穆尔芬根有限两合公司 | Device and method for Multi-function networked |
| CN108369056B (en) * | 2015-11-11 | 2021-01-19 | 依必安派特穆尔芬根有限两合公司 | Apparatus and method for multifunction networking |
| CN114502902A (en) * | 2019-10-08 | 2022-05-13 | 三菱电机株式会社 | Refrigerator, refrigeration control method, and program |
| CN114502902B (en) * | 2019-10-08 | 2023-04-14 | 三菱电机株式会社 | Refrigerator, refrigeration control method, and recording medium |
| WO2022267775A1 (en) * | 2021-06-21 | 2022-12-29 | 青岛海尔电冰箱有限公司 | Refrigerating and freezing apparatus control method, and refrigerating and freezing apparatus |
| WO2023131001A1 (en) * | 2022-01-07 | 2023-07-13 | 青岛海尔电冰箱有限公司 | Refrigeration and freezing apparatus and control method therefor |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2015102315A (en) | 2015-06-04 |
| JP6334146B2 (en) | 2018-05-30 |
| CN104677044B (en) | 2017-09-08 |
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