CN103033013A - Refrigerator and ice locker - Google Patents
Refrigerator and ice locker Download PDFInfo
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- CN103033013A CN103033013A CN2012103057676A CN201210305767A CN103033013A CN 103033013 A CN103033013 A CN 103033013A CN 2012103057676 A CN2012103057676 A CN 2012103057676A CN 201210305767 A CN201210305767 A CN 201210305767A CN 103033013 A CN103033013 A CN 103033013A
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Abstract
The present invention provides a refrigerator and an ice locker, which can detect the humidity of external air with a high precision, are stable in performance and can inhibit condensation and save energy. The refrigerator is provided with storage chambers (2, 3, 4, 5, 6), can enable refrigerant circulation (1S) for cooling the storage chambers (2, 3, 4, 5, 6), also has a humidity measuring mechanism (22) for measuring the humidity outside the refrigerator, a temperature measuring mechanism (21) for measuring the temperature outside the refrigerator (1), condensation inhibition mechanisms (33, 24) for inhibiting the condensation of the refrigerator (1), and a control mechanism (40) for controlling the condensation inhibition mechanisms (33, 24) according to the humidity measured by the humidity measuring mechanism (22) and the temperature measured by the temperature measuring mechanism (21) during the stop period of a compressor (16) for refrigerant circulation.
Description
Technical field
Refrigerator and the refrigerator-freezer of dewfall have been the present invention relates to suppress.
Background technology
As background technology of the present invention, No. 3942688 communique of Japan Patent (patent documentation 1) arranged.
The structure of patent documentation 1 possesses: external air temperature sensor and the extraneous air humidity sensor of configuration near the hinge cap on body top or the substrate reception section; The Antidewing heater of at least more than one that the partitioned portion of Men Yumen arranges; Usually according to the energising of external air temperature and extraneous air humidity control to the Antidewing heater, the output of extraneous air humidity sensor becomes in the situation that predefined higher limit is above or lower limit is following, only according to the controlling organization of external air temperature sensor control to the energising of Antidewing heater.
According to such scheme, put down in writing the humidity that detects accurately extraneous air, with according to external air temperature and extraneous air humidity in advance the Antidewing heater energising amount of calculative determination add temperature control, and prevention can consume Antidewing with few energy simultaneously because the misoperation of extraneous air humidity sensor and humidity control etc. causes the unusual dewfall on refrigerator body surface.
Patent documentation 1: No. 3942688 communique of Japan Patent
Summary of the invention
But, in structure in the past, shown in Figure 4 such as patent documentation 1, consider that every certain hour To measures external air temperature and the extraneous air humidity of refrigerator, based on calculate according to desired temperature in the refrigerator of the top of the structure of the transverse partition panel of refrigerator body, transverse partition panel and bottom in advance with external air temperature and the corresponding horizontal partition plate of the extraneous air humidity calculating formula of the energising amount of each Antidewing heater of dewfall not, calculate the energising amount of each Antidewing heater, carry out the such method of change of the energising amount of each Antidewing heater.
But external air temperature sensor and the extraneous air humidity sensor of the hinge cap on body top or near the configuration of substrate reception section are in order to prevent being the semi-hermetic structure from water inlet on every side.Like this, shown in Figure 8 such as patent documentation 1, be subject to the impact of cooling in the refrigerator and occurrence temperature changes, the impact on the mensuration of external air temperature sensor in the mensuration of every certain hour To is little, and externally in the hygrometry of air humidity sensor the impact on the hygrometry value large.For example during 0.5 ℃ of the certain and dry-bulb temperature change of wet-bulb temperature, relative humidity can be subject to 3% impact.
Thereby, need to set the energising amount many for the dewfall that prevents the refrigerator body surface, the tendency that has power consumption to increase.
The present invention is in view of above-mentioned actual conditions, its purpose is to provide the humidity that detects accurately extraneous air, stay in grade and suppressed dewfall and realized refrigerator and the refrigerator-freezer of economize on electricityization.
In order to reach above-mentioned purpose, the refrigerator of first aspect present invention is to possess the storeroom of foodstuff storing and make refrigerant circulation and with the kind of refrigeration cycle of above-mentioned storeroom cooling, it comprises: the hygrometry mechanism that measures the outer humidity of the case of above-mentioned refrigerator; Measure the temperature measuring mechanism of the case temperature outward of above-mentioned refrigerator; The dewfall that suppresses above-mentioned refrigerator dewfall suppresses mechanism; Measure the temperature that mechanism measures with the humidity of measuring according to the above-mentioned hygrometry of the compressor stopping period mechanism in above-mentioned kind of refrigeration cycle and said temperature, control the controlling organization that above-mentioned dewfall suppresses mechanism.
The refrigerator-freezer of second aspect present invention is applied to refrigerator-freezer with the refrigerator of the first first aspect present invention.
According to the present invention, can realize detecting accurately the humidity of extraneous air, stay in grade and suppressed dewfall and realized refrigerator and the refrigerator-freezer of economize on electricityization.
Description of drawings
Fig. 1 is the front view of the refrigerator of expression embodiments of the present invention 1.
Fig. 2 is the X-X line sectional view of Fig. 1 of case inner structure of the refrigerator of expression embodiment 1.
Fig. 3 is that the external air temperature sensor of the state behind the extraneous air sensor cap of refrigerator of embodiment 1 and the stereogram of extraneous air humidity sensor are taken off in expression.
Fig. 4 is the schematic diagram of structure of kind of refrigeration cycle of the refrigerator of expression embodiment 1.
Fig. 5 is the stereogram of allocation position of radiating tube in the refrigerator of expression embodiment 1.
Fig. 6 is the schematic diagram of structure of other routine kind of refrigeration cycle of the refrigerator of expression embodiment 1.
Fig. 7 is that compressor is ON(operation) time, the length of time of triple valve being switched to A side (outlet 34b one side) or B side (outlet 34c one side) is divided into the schematic diagram that a plurality of zones are obtained.
Fig. 8 is the schematic diagram of the temperature of refrigerating chamber between the refrigerator on-stream period and the relation of the hygrometry value of (extraneous air) humidity sensor measuring under the environment of expression 30 ℃ of external air temperatures, extraneous air humidity 70%.
Fig. 9 is that the running ON/OFF(of expression compressor stops/turning round) and the sequential chart of the action control of triple valve.
Figure 10 is the schematic diagram of relation of the current on time (duty) of the expression rotation separating part heater relative with the external air temperature of embodiment 2.
Figure 11 is the schematic diagram that expression makes the mobile control of the current on time shown in Figure 10 (duty).
Figure 12 is other routine schematic diagrames that expression makes the mobile control of the current on time shown in Figure 10 (duty).
The explanation of symbol
1 refrigerator
The 1S kind of refrigeration cycle
2 refrigerating chambers (storeroom)
2a refrigerating-chamber door (door)
2b refrigerating-chamber door (door)
The 2S kind of refrigeration cycle
3 ice-making compartments (storeroom)
4 upper strata refrigerating chambers (storeroom)
5 lower floor's refrigerating chambers (storeroom)
6 vegetable compartment (storeroom)
7 evaporimeters (kind of refrigeration cycle)
16 compressors (kind of refrigeration cycle)
21 external air temperature sensor (temperature measuring mechanism)
22 extraneous air humidity sensors (hygrometry mechanism)
23 rotation separating parts (partitioned portion)
24 rotation separating part heaters (heater that dewfall inhibition mechanism, Antidewing are used)
The heat insulation partition wall of 25 upsides (partition wall)
The heat insulation partition wall of 26 downsides (partition wall)
27 horizontal separating parts (partition wall)
28 longitudinal subdivision sections (partition wall)
32 bypass pipes (kind of refrigeration cycle)
33 radiating tubes (dewfall suppresses mechanism, kind of refrigeration cycle)
34 triple valves (switching mechanism, kind of refrigeration cycle)
40 control substrates (controlling organization)
The specific embodiment
Below, with reference to the description of drawings embodiments of the present invention.
＜＜embodiment 1〉〉
Fig. 1 is the front view of refrigerator of expression embodiments of the present invention 1, and Fig. 2 is the X-X line sectional view of Fig. 1 of the case inner structure of expression refrigerator.
The refrigerator 1 of embodiment 1 possesses refrigerating chamber 2, ice-making compartment 3 and upper strata refrigerating chamber 4, lower floor's refrigerating chamber 5 and vegetable compartment 6 from the top on the refrigerator body 1H that consists of its body.Wherein, ice-making compartment 3 and upper strata refrigerating chamber 4 are set up in parallel about between refrigerating chamber 2 and the lower floor's refrigerating chamber 5.
Refrigerating chamber 2 and vegetable compartment 6 are storerooms of about 3～5 ℃ refrigerated storage temperature section.On the other hand, ice-making compartment 3, upper strata refrigerating chamber 4 and lower floor's refrigerating chamber 5 are storerooms of about-18 ℃ cryogenic temperature section.
Refrigerating-chamber door 2a, the 2b of the clamshell doors (so-called French type) that refrigerating chamber 2 is cut apart about a side possesses forwardly.Refrigerating- chamber door 2a, 2b axle pivot are arranged on the front end edge edge, the left and right sides of refrigerator body 1H.
As shown in Figure 2, possess a plurality of door frame 2e in the inboard of refrigerating- chamber door 2a, 2b.
Between refrigerating- chamber door 2a, 2b, be formed with form to the interior case of the resin of the accommodation space of the interior side-prominent setting of each refrigerating- chamber door 2a, 2b toward each other to rotation separating part 23.
So, on the madial wall 2k of central authorities' one side of the accommodation space that forms refrigerating-chamber door 2a, be equipped with rotation separating part heater 24.Rotate separating part heater 24 and utilize the Joule heat that produces because of energising, make near rotation separating part 23 temperature rise to higher than the dew-point temperature of extraneous air.Thus, near the dewfall the inhibition rotation separating part 23.
Rotation separating part heater 24 has roughly near the size of the length (the above-below direction length of Fig. 1) of the vertical of refrigerating-chamber door 2a and is set.
As shown in Figure 2, refrigerating chamber 2 is provided with a plurality of shelf 2d, by shelf 2d refrigerating chamber 2 is divided into a plurality of storage spaces in the vertical.
Ice-making compartment 3, upper strata refrigerating chamber 4, lower floor's refrigerating chamber 5 and vegetable compartment 6 possess respectively ice-making compartment door 3a, upper strata refrigerating chamber door 4a, the refrigerating chamber door 5a of lower floor and the vegetable compartment door 6a of pull-out type.
In addition, on the face of the storeroom of each (2a, 2b, 3a, 4a, 5a, 6a) (2,3,4,5, a 6) side, be provided with seal member (not shown) in the mode of external margin along each, when each is closed, suppress warm extraneous air and enter in the storeroom and cold air leaks from storeroom.
In addition, refrigerator body 1H possesses the temperature setting device (not shown) that the user carries out the Temperature Setting of the Temperature Setting of refrigerating chamber 2 and upper strata refrigerating chamber 4, lower floor's refrigerating chamber 5 etc.Refrigerating-chamber door 2a has be used to the guidance panel 2s that carries out various settings, and the user sets the temperature of each storeroom by temperature setting device with guidance panel 2s.
As shown in Figure 2, in the case of refrigerator body 1H and case is outward to form heat insulating box 10 separations that are filled foamed heat-insulating material (polyurathamc) 10a between outer container 1a and the interior case 1b that forms storeroom (2～6) of periphery of refrigerator 1 and form.Heat insulating box 10 has also been installed the high vacuum heat-insulation parts 10b of a plurality of thermal insulations except the foamed heat-insulating material 10a that fills.
Among the refrigerator body 1H, the refrigerating chamber 2 of refrigerated storage temperature section and the upper strata refrigerating chamber 4 of cryogenic temperature section and ice-making compartment 3(are with reference to Fig. 1) divided by the heat insulation partition wall 25 of upside heat insulationly.
In addition, the vegetable compartment 6 of lower floor's refrigerating chamber 5 of cryogenic temperature section and refrigerated storage temperature section is divided by the heat insulation partition wall 26 of downside heat insulationly.
Shown in the dotted line of Fig. 1, on the top of lower floor's refrigerating chamber 5, the horizontal separating part 27 that lower floor's refrigerating chamber 5 and ice-making compartment 3 and upper strata refrigerating chamber 4 are separated at above-below direction is set.
As shown in Figure 1, on the horizontal top of separating part 27, arrange with between ice-making compartment 3 and the upper strata refrigerating chamber 4 in longitudinal subdivision section 28 that left and right directions separates.Wherein, omitted longitudinal subdivision section 28 among Fig. 2.
As shown in Figure 2, ice-making compartment 3, upper strata refrigerating chamber 4, lower floor's refrigerating chamber 5 and vegetable compartment 6 are respectively arranged with accommodating container 3b, 4b, 5b, 6b, the door (3a, 4a, 5a, a 6a) that possesses with the place ahead of each storeroom (3,4,5,6) move up in front and back integratedly (be drawn out of and pack into).
Fig. 3 is external air temperature sensor under the state after the extraneous air sensor cap of refrigerator of embodiment 1 is taken off in expression and the stereogram of extraneous air humidity sensor.
In the refrigerator 1, the extraneous air humidity sensor 22 of measuring the humidity of extraneous air is configured in the hinge cap (extraneous air sensor cap 41) on the top of refrigerator body 1H or control substrate 40(with reference to Fig. 2) the incorporating section near.Thus, extraneous air humidity sensor 22 is subjected to the outer pressure fan 42(of case of periphery of impact that the temperature and humidity of the refrigerating chamber 2 that the cold air that causes of switching of door (2a, 2b) flows out changes, Machine Room 15 with reference to Fig. 4) heat radiation that produces, the impact of dust be little, is difficult for occuring dewfall.
On the end face 10t of refrigerator 1, the hinge 41h that refrigerating-chamber door 2a axle pivot is arranged on the refrigerator body 1H screws togather by pin thread (bolt etc.).
Rear at hinge 41h, be formed with the 1H5 of the section that is arranged with of spill at the roof 1H0 of refrigerator body 1H, in being arranged with the 1H5 of section, be equipped with the temperature of measuring extraneous air external air temperature sensor 21, measure the extraneous air humidity sensor 22 of the humidity of extraneous air.
In external air temperature sensor 21, the situation of extraneous air humidity sensor 22 outside the top of refrigerator body 1H is arranged on refrigerator body 1H, the height dimension of refrigerator 1 increases.Therefore, it is configured among the 1H5 of the section that is arranged with that is arranged with on the roof 1H0.
Herein, make external air temperature sensor 21 and extraneous air humidity sensor 22 dispose closely, the easier humidity that obtains external air temperature that external air temperature sensor 21 measures and the extraneous air of extraneous air humidity sensor 22 mensuration relevant is so be configured in together among the 1H5 of the section that is arranged with that is arranged with on the roof 1H0.
On hinge 41h and external air temperature sensor 21, extraneous air humidity sensor 22, extraneous air sensor cap 41 covers setting shown in the arrow α 1 of Fig. 3.On the extraneous air sensor cap 41, run through the not shown passage that is provided with for ventilation.
Therefore, although the external air temperature sensor 21 in the extraneous air sensor cap 41, the configuration space of extraneous air humidity sensor 22 are the semi-hermetic structure, but the extraneous air of extraneous air sensor cap 41 outsides flows to around external air temperature, the extraneous air humidity sensor 21,22 by passage, accurately measures respectively the temperature and humidity of extraneous air by external air temperature, extraneous air humidity sensor 21,22.
As shown in Figure 2, refrigerator 1 is provided with evaporimeter 7 as making the cooling body that cools off in the case in the evaporimeter receiving room 8 that the roughly back of lower floor's refrigerating chamber 5 possesses.Example as evaporimeter 7 has fin tube heat exchanger.
Above the evaporimeter 7 in evaporimeter receiving room 8, be provided with pressure fan 9 in the case, as the wind pushing mechanism that cooled air in evaporimeter 7 (the following air that will carry out the low temperature after the heat exchange in evaporimeter 7 is called " cold air ") is circulated in case.Can enumerate propeller fan as an example of pressure fan in the case 9.
The cold air that is cooled with the cold-producing medium heat exchange of flowing through evaporimeter 7, by pressure fan in the case 9, the refrigerating chamber air-supply pipeline 11 of the rear one side configuration of each storeroom of process (2,6,3,4,5), vegetable compartment air-supply pipeline (not shown), refrigerating chamber air-supply pipeline 12 are respectively to each storeroom conveying such as each refrigerating chamber 2, vegetable compartment 6, ice-making compartment 3, upper strata refrigerating chamber 4, lower floor's refrigerating chamber 5.
To the air-supply of each storeroom (2,6,3,4,5), carry out open and close controlling by vegetable compartment baffle plate (not shown) and the control of control to the refrigerating chamber baffle plate 38 of the air output of refrigerating chamber 2, control to the air output of vegetable compartment 6 to 39 pairs on the refrigerating chamber baffle plate of the air output of the ice-making compartment 3 of cryogenic temperature section and upper strata refrigerating chamber 4, lower floor's refrigerating chamber 5 pipeline of blowing.
Refrigerating chamber baffle plate 38 is for carrying out under the open mode in the situation of the air-supply of refrigerating chamber 2, cold air has represented that through the refrigerating chamber air-supply pipeline 11 at the rear of refrigerating chamber 2 blow-off outlet 2c is 3 situation from blow-off outlet 2c(Fig. 2 of multistage opening) be delivered to refrigerating chamber 2.Make refrigerating chamber 2 cooled cold airs, the refrigerating chamber return pipeline (not shown) that the refrigerating chamber return port (not shown) that arranges from the bottom of refrigerating chamber 2 sets through the side of evaporimeter receiving room 8, the bottom of Returning evaporimeter receiving room 8.
Not shown vegetable compartment baffle plate carries out when being open mode in the situation of the air-supply of the vegetable compartment 6 of the foot of refrigerator 1, and cold air is by the vegetable compartment pipeline of blowing, 6 air-supplies from vegetable compartment blow-off outlet (not shown) to vegetable compartment.Make vegetable compartment 6 cooled cold airs, the vegetable compartment return pipeline entrance 14b that arranges from the place ahead, bottom at the heat insulation partition wall 26 of downside is by vegetable compartment return pipeline 14, from the bottom of vegetable compartment return pipeline outlet 14a Returning evaporimeter receiving room 8.
In the place ahead of evaporimeter receiving room 8, be provided with the partition member 13 of separating between ice-making compartment 3, upper strata refrigerating chamber 4, lower floor's refrigerating chamber 5 and the evaporimeter receiving room 8 of cryogenic temperature section chamber.Be formed with blow-off outlet 3c, 4c, 5c at partition member 13.
Refrigerating chamber baffle plate 39 is in the situation of open mode, and cold air flows through the refrigerating chamber air-supply pipeline 12 at upper strata refrigerating chamber 4 rears, blows to ice-making compartment 3, upper strata refrigerating chamber 4, lower floor's refrigerating chamber 5 respectively from blow-off outlet 3c, 4c, 5c.
On partition member 13, position in the bottom, depths of lower floor's refrigerating chamber 5 is provided with refrigerating chamber return port 13i, makes ice-making compartment 3, upper strata refrigerating chamber 4, lower floor's refrigerating chamber 5 cooled cold airs of cryogenic temperature section chamber flow into evaporimeter receiving room 8 by refrigerating chamber return port 13i.Wherein, refrigerating chamber return port 13i has width (the paper above-below direction of Fig. 2) width dimensions about equally with evaporimeter 7.
＜kind of refrigeration cycle 1S 〉
The kind of refrigeration cycle 1S of refrigerator 1 then, is described.
Fig. 4 is the schematic diagram of structure of kind of refrigeration cycle of the refrigerator of expression embodiment 1.
Kind of refrigeration cycle 1S, the cooling mechanism 29(30,31,33 that dispels the heat by pipe 37 compressors 16 with compressed refrigerant, to the heat of the cold-producing medium carried from compressor 16), as the capillary 44 of the mechanism of decompressor that the cold-producing medium of carrying from cooling mechanism 29 is reduced pressure, use from the cold-producing medium of capillary 44 conveyings air cooled evaporimeter 7 connected in turn.In the pipe 37 that connects this compressor 16, cooling mechanism 29, capillary 44, evaporimeter 7, flow through the cold-producing medium of (circulation) thermal medium.
Example as condenser 30 has fin tube heat exchanger.In Machine Room 15, be equipped with outside the case pressure fan 42(with reference to Fig. 4, not shown among Fig. 2), make outer pressure fan 42 runnings of case, promote thus the heat radiation of condenser 30.
Fig. 5 is the stereogram of the allocation position of radiating tube in the expression refrigerator.
Radiating tube 31 shown in dotted lines in Figure 5, and the heat insulating box 10(between outer container 1a shown in Figure 2 and the interior case 1b is with reference to Fig. 5) face of outer container 1a disposes in contact.Namely, with condenser 30(in the Machine Room 15 with reference to Fig. 4) represent with thick dashed line among radiating tube 31(Fig. 5 of being connected) in Machine Room 15, draw, with the contacted state of outer container 1a face under, up and down configuration on the left surface 10h of heat insulating box 10, cross over front portion up and down configuration on right flank 10m of end face 10t, and in the 10s(Fig. 5 of its back side, represent with fine dotted line), again enter Machine Room 15, with triple valve 34(in the Machine Room 15 with reference to Fig. 4) be connected.
Wherein, among Fig. 5, the radiating tube 31 of the upper configuration of left and right side 10h, 10m of heat insulating box 10 is identical with the radiating tube 31 of the upper configuration of back side 10s, and uses thick dashed line and fine dotted line to distinguish, and figure is watched easily.Therefore, script is that same radiating tube of same diameter is radiating tube 31.
Represent with thick line among shown in Fig. 4 and radiating tube 33(Fig. 5 that radiating tube 31 is connected by triple valve 34), be configured in two chain-dotted lines represent among Fig. 5 of heat insulating box 10 the heat insulation partition wall 25 of upside, the heat insulation partition wall 26 of downside, the horizontal separately inner front edge section (front openings edge part) of separating part 27 and longitudinal subdivision section 28.
These partition walls (separating part) (25,26,27,28) with storeroom (2,3,4,5,6) so to contact be low temperature, and because the front part of partition wall (25,26,27,28) is configured in the opening edge edge of each storeroom (2,3,4,5,6), the switching because of user's opposite house (2a, 2b, 3a, 4a, 5a, 6a) contacts extraneous air easily.Therefore, the front openings edge surface temperature of partition wall (25,26,27,28) becomes the dew-point temperature of extraneous air and dewfall may occur when following.
So, in order to prevent front openings edge (the particularly front part of the heat insulation partition wall 25 of upside, the heat insulation partition wall 26 of downside, horizontal separating part 27 and the longitudinal subdivision section 28) dewfall to refrigerator body 1H, configuration radiating tube 33.Thus, flow through the heat of cold-producing medium of high temperature of radiating tube 33 to the heat radiation of the front openings edge of refrigerator body 1H, having suppressed this front openings edge becomes below the dew-point temperature of extraneous air.
15 the inside in the Machine Room has set triple valve 34(with reference to Fig. 4) as the heat dispersion controlling organization.The 31o(of export department of radiating tube 31 is with reference to Fig. 5) enter Machine Room 15, with the entrance 34a(of triple valve 34 with reference to Fig. 4) be connected.
The elemental motion of triple valve 34 is, be the ON(operation at compressor 16) time switch radiating tube 33 and bypass pipe 32, make the cold-producing medium of high temperature flow through radiating tube 33, prevent the dewfall at the front openings edge (the particularly front part of the heat insulation partition wall 25 of upside shown in Figure 5, the heat insulation partition wall 26 of downside, horizontal separating part 27 and longitudinal subdivision section 28) to refrigerator body 1H.Switching by with triple valve 34 makes the cold-producing medium of high temperature flow through bypass pipe 32, suppresses as much as possible to enter because of the hot-fluid in case that the high temperature refrigerant that flows through radiating tube 33 produces, and realizes economize on electricityization.
On the other hand, compressor 16 stops for OFF() time, switch to radiating tube 33 1 sides, make the cold-producing medium of high temperature flow through radiating tube 33, prevent to the dewfall at the front openings edge of refrigerator body 1H.
As shown in Figure 4, the outlet 34b of triple valve 34 is connected with radiating tube 33, and the outlet 34c of triple valve 34 is connected with bypass pipe 32.
In Machine Room 15, in the downstream of check-valves 36, pipe 37 confluxes with downstream one side of bypass pipe 32, is connected with drier 43.Drier 43 is used for the moisture drying dehumidifying to cold-producing medium, prevents that the cold-producing medium of managing 37 inside from freezing to stop up, and cold-producing medium becomes and can't circulate.
Drier 43 is connected with capillary 44 by two-port valve 35.
The elemental motion of two-port valve 35 is, is the ON(operation at compressor 16) time " driving valve ", on the other hand, stop for OFF(at compressor 16) time " closing valve ".Stop for OFF(at compressor 16) front " closing valve ", the recovery of the cold-producing medium of the high temperature that exists carrying out from the downstream of two-port valve 35 to evaporimeter 7.
Specifically, owing to stop for OFF(at compressor 16) time, implement frost cooling (cooling off with the frost around the evaporimeter 7), by two-port valve 35 " is closed valve ", the cold-producing medium that suppresses high temperature flows into evaporimeter 7, realizes economize on electricityization.
Wherein, make from evaporimeter 7 towards the part of the pipe 37 of compressor 16 namely manage 37a and capillary 44 near to or in contact with, make the heat of the cold-producing medium in the capillary 44 of evaporimeter 7, mobile (conduction) is to managing the interior cold-producing medium of 37a.
As shown in Figure 2, top at evaporimeter 7, possesses the evaporator temperature sensor 20 that is installed on the evaporimeter 7, in refrigerating chamber 2, possesses refrigerator temperature sensor 17, in lower floor's refrigerating chamber 5, possess freezer temperature sensor 19, detect respectively the temperature of evaporimeter 7, the temperature of refrigerating chamber 2 and the temperature of lower floor's refrigerating chamber 5.In the vegetable compartment 6, dispose vegetable compartment temperature sensor 18.
And then as mentioned above, refrigerator body 1H possesses external air temperature sensor shown in Figure 3 21 and the extraneous air humidity sensor 22 that detects the humiture environment (external air temperature, extraneous air humidity) on every side that refrigerator 1 is set.
Wherein, in the above-mentioned explanation, illustration the kind of refrigeration cycle 1S of Fig. 4, also can use the kind of refrigeration cycle 2S shown in the Fig. 6 that does not possess two-port valve 35.
Fig. 6 is the schematic diagram of structure of other routine kind of refrigeration cycle of the refrigerator of expression embodiment 1.
In this situation, triple valve 34 plays the effect of two-port valve 35.That is, stop before the compressor 16, close outlet 34b, the 34c of triple valve 34, proceed to the refrigerant-recovery (making the cold-producing medium of high temperature flow through compressor 16 1 sides in the downstream of evaporimeter 7) of the high temperature till the evaporimeter 7 in downstream of radiating tube 33, bypass pipe 32.Thus, the cold-producing medium of the high temperature in the downstream of inhibition radiating tube 33, bypass pipe 32 flows into evaporimeter 7 when cooling running beginning, prevents overload running, realizes economize on electricityization.
＜control part 〉
Random access memory) read-only storage) or RAM(Random Access Memory CPU), ROM(Read Only Memory be equipped with at the rear portion of the end face 10t of the refrigerator body 1H shown in Fig. 2 and carried CPU(Central Processing Unit::: the control substrate 40 of memory, timer, interface circuit etc. such as.Interface circuit and the said external air temperature sensor 21 of control substrate 40, extraneous air humidity sensor 22, evaporator temperature sensor 20, freezer temperature sensor 19, refrigerator temperature sensor 17, vegetable compartment temperature sensor 18, detect the door sensor of the open and-shut mode of each door of storage room (3a, 4a, 5a, 6a) (with reference to Fig. 1), the guidance panel 2s of the upper setting of refrigerating-chamber door 2a etc. respectively and be connected.Interface circuit comprises the control circuit of the various actuators such as A/D, D/A converter, induction (amplification) circuit, compressor 16 etc.
The following control of refrigerator 1 is carried out by pre-stored control program among the execution ROM.
Namely, the ON/OFF(that carries out compressor 16 moves/stops) and make the control of each not shown actuator that triple valve 34, two-port valve 35, refrigerating chamber baffle plate 38, vegetable compartment baffle plate and refrigerating chamber baffle plate 39 individually turn round, pressure fan 9(is with reference to Fig. 2 in the case in the evaporimeter receiving room 8) and Machine Room 15 in the outer pressure fan 42(of case with reference to Fig. 4) ON/OFF(move/stop) control and rotating speed control, and notifies the ON/OFF(of siren of the open mode of above-mentioned (2a, 2b, 3a, 4a, 5a, 6a) (with reference to Fig. 1) to move/stop) and control etc.
The method of the switching controls of＜triple valve 34 〉
The method of the switching controls of triple valve 34 then, is described.
As the switching controls of triple valve 34, substantially carry out the control of following (1), (2).
(1) OFF(of compressor 16 stops) during, make triple valve 34 be A side (opening outlet 34b makes the cold-producing medium of high temperature flow through radiating tube 33).Thus, the temperature at the front openings edge (with reference to Fig. 5) by improving partition wall (25,26,27,28) suppresses dewfall.
(2) compressor 16 becomes ON(operation) after situation under, carry out " the triple valve switching controls " of triple valve 34 in switching between A side (radiating tube 33 1 sides of the front openings edge of partition wall configuration) and the B side (bypass pipe 32 1 sides) stopped until becoming OFF().As mentioned above, make the cold-producing medium of high temperature flow through radiating tube 33, improve thus the temperature at the front openings edge (with reference to Fig. 5) of partition wall (25,26,27,28), suppress dewfall.
Herein, the time longer (more suppressing the control of dewfall) of the temperature at the front openings edge of raising partition wall (25,26,27,28) more needs the relation (relation of contradiction) of the antinomy of the cooling running in the case.
Therefore, shown in (2), the cold-producing medium that makes high temperature is not always but flows through off and on radiating tube 33 1 sides, shortens thus (time of suppressing the control of dewfall) is executed the loaded time in the cooling running, suppresses the increase of power consumption.That is, in order to realize economize on electricity, not in the scope of dewfall, make the cold-producing medium of high temperature flow through bypass pipe 32 at the front openings edge of partition wall (25,26,27,28).
So, as described below, obtain the time (triple valve 34 being switched to the time of A side) that the cold-producing medium that makes high temperature flows through radiating tube 33 and the time (triple valve 34 being switched to the time of B side) of flowing through bypass pipe 32.Wherein, the cold-producing medium of high temperature is flow through in the situation of radiating tube 33, as shown in Figure 4, because triple valve 34 switches to A side (outlet 34b one side), do not flow through the cold-producing medium of high temperature in the bypass pipe 32.On the other hand, do not flow through in the radiating tube 33 in time of cold-producing medium of high temperature, because triple valve 34 switches to B side (outlet 34c one side), so flow through the cold-producing medium of high temperature in the bypass pipe 32.
Fig. 7 is that compressor is ON(operation) time, the length of time of triple valve being switched to A side (outlet 34b one side) or B side (outlet 34c one side) is divided into the schematic diagram that a plurality of zones are obtained.
The transverse axis of Fig. 7 is the external air temperature that external air temperature sensor 21 is measured, and the longitudinal axis of Fig. 7 is the extraneous air humidity that extraneous air humidity sensor 22 is measured.
External air temperature is in the situation of high temperature, and the saturated steam amount is large, and the steam vapour amount that contains in the extraneous air is many, and, and the difference between the refrigerated storage temperature of refrigerator 1 (for example 1 ℃～3 ℃) is large.The tendency that the easy dewfall in front openings edge of partition wall (25,26,27,28) therefore, is arranged.
External air temperature is in the situation of low temperature, and the saturated steam amount is few, and the steam vapour amount that contains in the extraneous air is few, and, and the difference between the refrigerated storage temperature of refrigerator 1 (for example 1 ℃～3 ℃) is little.Therefore, there is the front openings edge of partition wall (25,26,27,28) to be difficult for the tendency of dewfall.
On the other hand, in the high situation of the humidity of extraneous air, contain a large amount of steam in the extraneous air, the tendency of the easy dewfall in front openings edge of partition wall (25,26,27,28) is therefore arranged.
In the low situation of the humidity of extraneous air, the steam that contains in the extraneous air is few, therefore has the front openings edge of partition wall (25,26,27,28) to be difficult for the tendency of dewfall.
Therefore, for the front openings edge of partition wall (25,26,27,28) dewfall not, triple valve 34 is switched to time (making the cold-producing medium of high temperature flow through the time of bypass pipe 32) of B side, with external air temperature and extraneous air humidity as illustrated in fig. 7 in subregional obtain.Wherein, the details in zone after narrate.
Fig. 8 is the schematic diagram of the temperature of refrigerating chamber between the refrigerator on-stream period and the relation of the hygrometry value of (extraneous air) humidity sensor measuring under the environment of expression 30 ℃ of outside air temperatures, extraneous air humidity 70%.
The transverse axis of Fig. 8 be the temperature (representing with chain-dotted line among Fig. 8) of the refrigerating chamber 2 measured in the elapsed time (minute), the longitudinal axis of Fig. 8 is that refrigerator temperature sensor 17(is with reference to Fig. 2), humidity (dotting among Fig. 8) that extraneous air humidity sensor 22 is measured, with the humidity (ambient humidity, light and temperature that represents with solid line among Fig. 8) of the extraneous air of the position finding of refrigerator 1 isolation.
Symbol T0 shown in Figure 8 is the cooling running stopping period that makes compressor 16 runnings, that is, and and the time period that compressor 16 is stopped.Symbol T1 is the time period that makes the running of refrigerating chamber 2 cooling, that is, be to make compressor 16 runnings and open refrigerating chamber baffle plate 38(with reference to Fig. 2) time period.Symbol T2 is the time period that makes the running of refrigerating chamber (3,4,5) cooling, that is, be to make compressor 16 runnings and open refrigerating chamber baffle plate 39(with reference to Fig. 2) time period.
Generally speaking, compressor 16 is the ON(operation) time, because short OFF(stops) the frost cooling (cooling that the frost that adheres on the evaporimeter 7 carries out) of time etc., the variations in temperature of refrigerating chamber 2 is large.
As can be seen from Figure 8, the humidity (dotted line among Fig. 8) of the extraneous air that extraneous air humidity sensor 22 is measured, follow refrigerating chamber 2 temperature up and down change and lifting is subject to the large impact of refrigerating chamber 2 temperature.Infer that this is because extraneous air humidity sensor 22 is configured on the roof 1H0 of refrigerator body 1H forms among the 1H5 of the section that is arranged with of concavity, so be subject to easily the impact of the temperature of refrigerating chamber 2.
On the other hand, among the time period T0 of cooling running stopping period, the measured value of extraneous air humidity sensor 22 (dotted line among Fig. 8) is stable.Cooling running stopping period, extraneous air humidity sensor 22 are not subject to the impact of the cooling running of refrigerator 1, so think that the measured value of humidity of extraneous air is stable.
So, the measured value that extraneous air humidity sensor 22 is measured, the measured value of the time period T0 of use cooling running stopping period, the humidity of the extraneous air of use during as next time cooling running.
Herein, the measured value of the extraneous air humidity sensor 22 that uses can be the front measured value of next time cooling running of the time period T0 of compressor 16 stopping periods, also can be the mean value of time period T0, can also be the median of time period T0, without particular limitation of.But, note using reflection to cool off the value of the humidity of the extraneous air between on-stream period next time.
Then, illustrate use JIS(Japanese Industrial Standards) the experimental condition of power consumption be divided into the example of the area 0 shown in Fig. 7～3.
According to the humidity zoning of external air temperature, extraneous air the time, use 15 ℃ of winter temperatures, humidity 55% and 30 ℃ of summer temps, the humidity 70% of experimental condition of power consumption of JIS as benchmark.
Obtain the time (making the cold-producing medium of high temperature flow through the time of radiating tube 33) that triple valve 34 is switched to the time (making the cold-producing medium of high temperature flow through the time of bypass pipe 32) of B side (34c one side) and triple valve 34 is switched to A side (34b one side).
Therefore, about external air temperature, to be that 13 ℃ of 15 ℃ of low external air temperatures of ratio of 15 ℃ of temperature are 33 ℃ of trisections of 30 ℃ of high external air temperatures of ratio of 30 ℃ of temperature to covering the summer experimental condition from covering JIS experimental condition in winter, with 19 ℃, the 26 ℃ external air temperatures that are set as the border in zone.
Humidity about extraneous air, the extraneous air humidity 60% that will be from the experimental condition in winter that covers JIS the ratio 55% high 5% of humidity 55% is to be divided into 2 parts between the extraneous air humidity 75% of ratio 70% high 5% of humidity 70% to covering the summer experimental condition, in order conveniently to set 65%, as the border that is divided into trizonal extraneous air humidity.
Wherein, obtain triple valve 34 is switched in the situation of time of B side (making the cold-producing medium of high temperature flow through bypass pipe 32), the humidity on border is set as when higher than 65%, triple valve 34 is switched to the time shorten (time that triple valve 34 is switched to the A side is elongated) of B side, the humidity on border is set as when lower than 65%, triple valve 34 is switched to the time elongated (triple valve 34 being switched to the time shorten of A side) of B side.According to this relation, the humidity 65% of setting is as a goal-setting.
Thus, with 26 ℃～33 ℃ of external air temperatures and extraneous air humidity 0～75% as regional 1.
With 19 ℃～26 ℃ of external air temperatures and extraneous air humidity 0～65% as regional 2.
With 13 ℃～19 ℃ of external air temperatures and extraneous air humidity 0～60% as regional 3.
In each zone 1～3, dewfall is not determined at certain in (necessarily) time as condition take the front openings edge (with reference to Fig. 5) of partition wall (25,26,27,28), and triple valve 34 is switched to the A side, makes the cold-producing medium of high temperature flow through the time of radiating tube 33; And triple valve 34 switched to the B side, makes the cold-producing medium of high temperature flow through the time of bypass pipe 32.
Namely, repeatedly confirm how long triple valve 34 is switched to the B side from the A side in certain (necessarily) time, make the cold-producing medium of high temperature flow through bypass pipe 32 also not in the upper dewfall in the front openings edge (with reference to Fig. 5) of partition wall (25,26,27,28), determine in this certain (necessarily) time triple valve 34 to be switched to the time of B side and the combination that triple valve 34 is switched to the time of A side.
Preferred determine combination so that triple valve 34 is switched to the mode of ratio maximum of the time of B side (making the cold-producing medium of high temperature flow through bypass pipe 32) herein.This is owing to suppressed the heat of cold-producing medium of the high temperature of radiating tube 33 and enter in the case, helps economize on electricityization.
Wherein, the area 0 of the oblique line of Fig. 7 as mentioned above, is the control that triple valve 34 is fixed as the A side,, continues to make the zone of the refrigerant flow direction radiating tube 33 of high temperature that is.
Confirmed the switching time to the B side (the time period Bt of aftermentioned Fig. 9) of triple valve 34, that is, made the time that the cold-producing medium of high temperature flows through bypass pipe 32 that following relation be arranged.
That is, the B side switching time in the B side in zone 1 B side switching time＜zone 2 switching time＜zone 3.
For example, confirmed with 26 ℃～33 ℃ of regional 1(external air temperatures, extraneous air humidity 0～75%) 19 ℃～26 ℃ of 10 minutes, regional 2(external air temperature, extraneous air humidity 0～65%) 13 ℃～19 ℃ of 15 minutes, regional 3(external air temperature, extraneous air humidity 0～60%) 20 minutes, triple valve 34 is switched to the cold-producing medium that the B side makes high temperature flow through bypass pipe 32, the front openings edge (with reference to Fig. 5) of partition wall (25,26,27,28) is dewfall not also.
On the other hand, the triple valve 34 of determining is to the switching time (the time period At of aftermentioned Fig. 9) of A side, that is, make the cold-producing medium of high temperature flow through the time of radiating tube 33, has following relation.
Zone A side switching time of 1〉A side switching time in zone 2〉A side switching time in zone 3
The example of the switching controls of＜triple valve 34 〉
Then, use Fig. 8 that the example of the switching controls of triple valve 34 is described.
Represented among Fig. 9 will explanation method be applied to the example of control of the running of refrigerator 1.
Fig. 9 is that the running ON/OFF(of expression compressor moves/stops) and the sequential chart of the action control of triple valve.The transverse axis of Fig. 9 is the time, and the longitudinal axis of Fig. 9 represents that the A of triple valve opens (outlet 34b for open and refrigerant flow direction radiating tube 33)/standard-sized sheet/B and opens that (area 0 of Fig. 7)/be false set up in (outlet 34c is for opening and refrigerant flow direction the bypass pipe 32)/action of full cut-off, the A side rigid condition of triple valve, compressor ON/OFF(moves/stops).
In addition, the outside air temperature that uses the external air temperature sensor 21 of humidity that this extraneous air humidity sensor 22 measures and the current time before the t1 to measure, use switching time or the no information that is fixed as the A side of the information of Fig. 7 of storage in the memory (ROM) and the B side corresponding with area 0～3 difference/A side, determine to be arranged in which zone of area 0～3, obtain switching time or the no A of the being fixed as side of corresponding B side/A side.
Thus, even determine the cold-producing medium that triple valve 34 switches to the time high temperature of B side is flow through the time (the time Bt of Fig. 9) of bypass pipe 32 even and the cold-producing medium that triple valve 34 switches to the time high temperature of A side is flow through time (the time At of Fig. 9) or the no A of the being fixed as side of radiating tube 33.Below, according to such flow process, the external air temperature that uses humidity that extraneous air humidity sensor 22 measures and external air temperature sensor 21 to measure carries out switching or the no control that is fixed as the A side of the B side of triple valve 34/A side.
When arriving the moment t1 of Fig. 9, compressor 16 becomes the ON(operation).The external air temperature of measuring according to the external air temperature sensor 21 of the current time before the moment t1 and compressor 16 be during the OFF (cooling running stopping period) in advance by the humidity of extraneous air humidity sensor 22 mensuration, use the information of Fig. 7 etc. of memory (ROM), determine it is area 0～switching time (At1) of which and corresponding A side in 3 (in this situation in the zone 1～3 some).Then, at the switching time of the At1(constantly during the t1～t2) that uses Fig. 7 to determine, triple valve 34 is switched to the A side, makes the cold-producing medium of high temperature flow through radiating tube 33(with reference to Fig. 4).
During due in t2, the external air temperature of measuring according to the external air temperature sensor 21 of the current time before the moment t2 and compressor 16 be during the OFF (cooling running stopping period) in advance by the humidity of extraneous air humidity sensor 22 mensuration, the information of Fig. 7 of use memory (ROM) etc., determine it is area 0～switching time (Bt1) of which and corresponding B side in 3 is (in this situation, be some in 1～3 of zone), the switching time of the Bt1(constantly during the t2～t3) that is obtaining, triple valve 34 is switched to the B side, makes the cold-producing medium of high temperature flow through bypass pipe 32(with reference to Fig. 4).
During due in t3, the external air temperature of measuring according to the external air temperature sensor 21 of the current time before the moment t3 and compressor 16 be during the OFF (cooling running stopping period) in advance by the humidity of extraneous air humidity sensor 22 mensuration, the information of Fig. 7 of use memory (ROM) etc., determine it is area 0～switching time (At2) of which and corresponding A side in 3 (in this situation, in the zone 1～3 some).Then, at the switching time of the At2(constantly during the t3～t4) that obtains, triple valve 34 is switched to the A side, makes the cold-producing medium of high temperature flow through radiating tube 33(with reference to Fig. 4).
During due in t4, the external air temperature of measuring according to the external air temperature sensor 21 of the current time before the moment t4 and compressor 16 be during the OFF (cooling running stopping period) in advance by the humidity of extraneous air humidity sensor 22 mensuration, the information of Fig. 7 of use memory (ROM) etc., determine it is area 0～switching time (Bt2) of which and corresponding B side in 3 (in this situation, in the zone 1～3 some).Then, at the switching time of the Bt2(constantly during the t4～t5) that obtains, triple valve 34 is switched to the B side, makes the cold-producing medium of high temperature flow through bypass pipe 32(with reference to Fig. 4).
During due in t5, the external air temperature of measuring according to the external air temperature sensor 21 of the current time before the moment t5 and compressor 16 be during the OFF (cooling running stopping period) in advance by the humidity of extraneous air humidity sensor 22 mensuration, similarly determine it is in which and switching time this situation of At3(in area 0～3, some in the zone 1～3).Then, in switching time of obtaining during the At3, triple valve 34 is switched to the A side, makes the cold-producing medium of high temperature flow through radiating tube 33(with reference to Fig. 4).
Wherein, at any time measured value is sampled for external air temperature sensor 21, at the moment of Fig. 9 t6, judge that the external air temperature that external air temperature sensor 21 is measured is positioned at the area 0 of Fig. 7 with compressor 16 in advance for (cooling running stopping period) during the OFF by humidity of extraneous air humidity sensor 22 mensuration, so triple valve 34 is fixed as the A side (moment t6 of Fig. 9～t10).
On the other hand, do not judge in the situation that is positioned at area 0 at the moment of Fig. 9 t6, as mentioned above, which utilize Fig. 7 to determine to be in and switching time this situation of At3(in area 0～3, be some in 1～3 of zone), at the switching time of the At3(constantly during the t5～t7) that obtains, triple valve 34 is switched to the A side, makes the cold-producing medium of high temperature flow through radiating tube 33(with reference to Fig. 4).
During due in t7, similarly, triple valve 34 is switched to the B side, make the cold-producing medium of high temperature flow through bypass pipe 32(with reference to Fig. 4), and since compressor 16 from ON(operation) become OFF(and stop) (constantly t8), so compressor 16 stops for OFF() during, triple valve 34 is switched to the A side, makes the cold-producing medium of high temperature flow through radiating tube 33(Fig. 4).Because compressor 16 be that (so t8～t9) constantly is with the humidity of extraneous air humidity sensor 22 mensuration extraneous airs for stopping period (during the OFF).
When arriving the moment t9 of Fig. 9, compressor 16 by moment t8～t9 stops for OFF() during humidity and the external air temperature measured of the external air temperature sensor 21 of the current time before the t9 constantly of extraneous air, use the information such as Fig. 7 of memory (ROM), determine it is area 0～switching time (At4) of which and corresponding B side in 3 (in this situation, in the zone 1～3 some).Then, obtain switching time At4(Fig. 9 moment t9～t11) during, triple valve 34 is switched to the A side, makes the cold-producing medium of high temperature flow through radiating tube 33(with reference to Fig. 4).
When arriving the moment t11 of Fig. 9, the external air temperature of measuring according to the external air temperature sensor 21 of the current time before the moment t11 and compressor 16 be (humidity of the moment t8 of Fig. 9～t9) measured by extraneous air humidity sensor 22 in advance, the similarly switching time (Bt4) of the B side of definite area 0～3 and correspondence of (cooling running stopping period) during the OFF.Then, at Bt4 switching time that obtains, triple valve 34 is switched to the B side, makes the cold-producing medium of high temperature flow through bypass pipe 32(with reference to Fig. 4).
Carry out afterwards same control.
Wherein, in the embodiment 1, illustration make the mensuration of the external air temperature of external air temperature sensor 21, use at any time the situation of the measured value of current time, and for the impact of the cooling running that is not subject to refrigerator 1, also can carry out at compressor 16 stopping periods.
In this situation, the measured value of the external air temperature sensor 21 till the moment t1～t8 between compressor 16 on-stream periods shown in Figure 9, use that compressor 16 stopping periods till the t1 constantly measure, the switching time of triple valve 34, use the measured value of external air temperature sensor 21 of compressor 16 stopping periods till the t1 constantly and the measured value of extraneous air humidity sensor 22, use the information of Fig. 7 etc. of memory (ROM), determine switching time or the no A of the being fixed as side of which and corresponding A side/B side in area 0～3.Then, carry out the control of triple valve 34.
Similarly, moment t9 between compressor 16 on-stream periods～the measured value of external air temperature sensor 21, compressor 16 stopping periods till use moment t8～t9 are measured, the switching time of triple valve 34, the measured value of the external air temperature sensor 21 of compressor 16 stopping periods till use moment t8～t9 and the measured value of extraneous air humidity sensor 22, the information of Fig. 7 of use memory (ROM) etc., determine switching time or the no A of the being fixed as side of which and corresponding A side/B side in area 0～3, carry out the control of triple valve 34.
According to embodiment 1, the extraneous air humidity sensor 22 of measuring the humidity of extraneous air is configured in, it is little and be not easy to occur in the extraneous air sensor cap 41 on refrigerator body 1H top of dewfall that Yin Men (2a, 2b) opens and closes the impact of heat radiation that the cold air cause flows out the outer pressure fan 42 of case of impact that caused temperature of refrigerating chamber and humidity changes, Machine Room 15 peripheries, dust, or near the incorporating section of control substrate 40.Extraneous air humidity sensor 22 uses the semi-hermetic structure in order to prevent into water, and because the cooling of refrigerator 1 running stopping period carries out the mensuration of the humidity of extraneous air, has suppressed to be subject to cooling off the impact of running.
Thereby, detect accurately the humidity of extraneous air, carry out switching controls to triple valve 34 switching time that precomputes in the zone according to external air temperature and extraneous air humidity.Thus, need not to make the cold-producing medium that flows through necessary above high temperature in the radiating tube 33 at front openings edge of partition wall (25,26,27,28), can prevent dew (inhibition dewfall) with energy consumption still less.
Wherein, the method of the switching time of obtaining triple valve 34 of Fig. 7 of explanation is an example in the embodiment 1, and the time (making the cold-producing medium of high temperature flow through the time of radiating tube 33) that triple valve 34 is switched to the time (making the cold-producing medium of high temperature flow through the time of bypass pipe 32) of B side and switch to the A side, also switching time was obtained in the zoning in more detail.Thus, can realize further economize on electricityization.
Like this, also can set other external air temperature condition, extraneous air humidity condition and obtain switching time of triple valve 34, do not limited.
＜＜embodiment 2〉〉
The control that embodiment 2 reduces the energising amount of the rotation separating part heater 24 of rotation separating part 23 dewfall between refrigerating-chamber door 2a, the 2b that prevents shown in Fig. 1.
In the following control, to the measured value of the external air temperature of the external air temperature sensor 21 shown in Fig. 3 with 5 seconds periodic samplings.Wherein, the mensuration of the external air temperature of external air temperature sensor 21 can be the ON(operation at compressor 16) time and/or compressor 16 stop for OFF() time carries out, and preferably in compressor 16 stopping periods (during OFF) (cooling running stopping period) mensuration.
Thus, can under the state of the impact that is not subject to cooling off running, carry out the mensuration of external air temperature.In this situation, the external air temperature that uses in the explanation of the medium embodiment 2 of Figure 10 refers to the external air temperature of compressor 16 stopping periods.
In addition, the temperature measuring value of the refrigerator temperature sensor 17 of refrigerating chamber shown in Figure 22 being measured is pressed 5 seconds periodic samplings.
The hygrometry value of 22 pairs of compressor 16 stopping periods of extraneous air humidity sensor shown in Figure 3 is sampled.
Figure 10 is that expression is to the schematic diagram of the relation of the current on time (duty) of the rotation separating part heater of the external air temperature of embodiment 2.The transverse axis of Figure 10 is the external air temperature that external air temperature sensor 21 is measured, and the longitudinal axis of Figure 10 is the current on time (duty) of rotation separating part heater 24.
The current on time (duty) of rotation separating part heater 24 be expression make rated current within certain time with how much %(percentage) time flow through.For example, 10sec(second) interior 6sec(second) when flowing through rated current in rotation separating part heater, current on time (duty) is 60%.
According to Figure 10, till 10 ℃ of the external air temperatures of measuring to external air temperature sensor 21, the current on time (duty) of rotation separating part heater 24 is 0%, and rotation separating part 23 is dewfall not.On the other hand, the outside air temperature that external air temperature sensor 21 is measured is more than 36 ℃, and the current on time (duty) of rotation separating part heater 24 is the current on time of 100%(benchmark), suppressed to the dewfall of rotation separating part 23.
Thus, till 10 ℃～36 ℃ of the external air temperatures that external air temperature sensor 21 is measured, by 10 ℃ of external air temperatures, current on time (duty) 0% are connected with 36 ℃ of external air temperatures, current on time (duty) 100%, determine 10 ℃～36 ℃ lower inhibition to the current on time (duty) (current on time of benchmark) of the rotation separating part heater 24 of the dewfall of rotating separating part heater 24 of external air temperature.
Then, illustrate that the temperature of measuring according to the refrigerator temperature sensor 17 of refrigerating chamber shown in Figure 22 makes the control of current on time shown in Figure 10 (duty) mobile (increase and decrease).
Figure 11 is the schematic diagram that expression makes the control of the current on time shown in Figure 10 (duty) mobile (increase and decrease).The numeral of Figure 11 below is the temperature of the refrigerating chamber 2 of refrigerator temperature sensor 17 mensuration.The numeral of Figure 11 top is movement (increase and decrease) value of current on time (duty) shown in Figure 10 in the temperature section of refrigerating chamber 2.This movement value take rotate separating part heater 24 not dewfall set as condition.
This control makes current on time shown in Figure 10 (duty) mobile based on the threshold value (1 ℃, 3 ℃, 6 ℃, 18 ℃) of the temperature of 4 points of refrigerator temperature sensor 17 mensuration.
During 1 ℃ of the temperature deficiency of refrigerating chamber 2, make current on time shown in Figure 10 (duty) mobile+5%.
When the temperature of refrigerating chamber 2 is 1 ℃～3 ℃, owing to be the common running of refrigerating chamber 2, do not carry out the movement (± 0%) of current on time shown in Figure 10 (duty).
When the temperature of refrigerating chamber 2 is 3 ℃～6 ℃, make current on time shown in Figure 10 (duty) mobile-2%.
Below, similarly, the temperature of refrigerating chamber 2 is more than 18 ℃ the time, movement-100%(stops the energising to rotation separating part heater 24).
The current on time (duty) of rotation separating part heater 24 moves (increase and decrease) according to the temperature of the refrigerating chamber 2 under the current on time (duty) of this rotation separating part heater 24, and the Antidewing of rotation separating part 23 is suitably changed, and has realized the economize on electricity of refrigerator 1.
Then, illustrate that the humidity of measuring according to extraneous air humidity sensor shown in Figure 3 22 makes the control of current on time shown in Figure 10 (duty) mobile (increase and decrease).
Figure 12 is other routine schematic diagrames that expression makes the mobile control of current on time shown in Figure 10 (duty).The humidity that extraneous air humidity sensor 22 was measured when the numeral of Figure 12 below was compressor 16 stopping period.The numeral of Figure 12 top is movement (increase and decrease) value of the current on time (duty) of Figure 10 in the humidity section measured of compressor 16 stopping period extraneous air humidity sensors 22.This movement value take rotate separating part heater 24 not dewfall set as condition.
In this control, the user has selected to reduce with guidance panel 2s shown in Fig. 1 in the situation of energy-saving mode of power consumption, the threshold value (90%, 70%, 50%, 30%) (humidity of benchmark) of the temperature of four points measuring based on compressor 16 stopping period extraneous air humidity sensors 22 makes current on time shown in Figure 10 (duty) mobile (increase and decrease).
The humidity 70% of measuring take compressor 16 stopping period extraneous air humidity sensors 22 is in the situation of standard, and therefore the humidity 70% because humidity 90%～70%, humidity 70%～50% are near the mark do not carry out the movement (± 0%) of current on time (duty).That is, according to the current on time (duty) of Figure 10 rotation separating part heater 24 is switched on.
When humidity 90% is above, make current on time shown in Figure 10 (duty) mobile+6%.
Wherein, in this example, illustration in the situation of user selection energy-saving mode, carry out the situation of the movement of current on time shown in Figure 12 (duty), carry out the movement of current on time shown in Figure 12 (duty) but also can constitute when the common running of refrigerator 1, the user has manually selected not utilize in the situation of energy-saving mode the movement of the current on time shown in Figure 12 (duty) of extraneous air humidity sensor 22.Can also be user when manually having selected energy-saving mode, remove the structure of energy-saving mode in the situation that humidity raises.
The situation that humidity is high can be enumerated for example 30 ℃ of external air temperatures, humidity 75%, 25 ℃ of external air temperatures, humidity 65%, 20 ℃ of external air temperatures, humidity 60% etc.
According to embodiment 2, according to according to external air temperature with not measured by the energising of each Antidewing heater that the extraneous air humidity of cooling running stopping period of impact of the cooling running of refrigerator 1 calculates in advance, each Antidewing heater is added temperature control, make the control optimization that suppresses dewfall.Thus, can prevent revealing (inhibition dewfall) with energy consumption still less.
＜＜other embodiments〉〉
Wherein, in the above-mentioned embodiment, illustration extraneous air humidity sensor 22 is configured in the situation on the top of refrigerator body 1H, and also can be configured in other refrigerator body 1H, refrigerating-chamber door 2a, the 2b etc. of the impact that is not subjected to cool off running.
In addition, in the above-mentioned embodiment, illustrated various structures, also each structure appropriate combination ground can have been consisted of.
Wherein, in the above-mentioned embodiment, illustrated the refrigerator that possesses refrigerating chamber 2 and refrigerating chamber (3,4,5), and the present invention also can be widely used in only possessing the refrigerator of refrigerating chamber and the refrigerator-freezer that is made of refrigerating chamber.
Claims (5)
1. refrigerator, it possesses the storeroom of foodstuff storing and makes refrigerant circulation and with the kind of refrigeration cycle of described storeroom cooling, it is characterized in that, comprising:
Measure the hygrometry mechanism of the case humidity outward of described refrigerator;
Measure the temperature measuring mechanism of the case temperature outward of described refrigerator;
The dewfall that suppresses described refrigerator dewfall suppresses mechanism; With
According to the temperature that the humidity of measuring in the described hygrometry of the compressor stopping period mechanism of described kind of refrigeration cycle and described temperature measuring mechanism measure, control the controlling organization that described dewfall suppresses mechanism.
2. refrigerator as claimed in claim 1 is characterized in that:
Described dewfall suppresses the front openings edge that mechanism is arranged on the dividing plate of dividing described storeroom, and flows through the radiating tube of the described cold-producing medium of discharging from the compressor of described kind of refrigeration cycle,
Possesses the bypass pipe that makes the refrigerant bypass that flows through described radiating tube; With
The cold-producing medium of discharging from described compressor is flow through described radiating tube or flows through the switching mechanism that described bypass pipe switches,
Described controlling organization is according to the described switching of carrying out described switching mechanism predefined switching time and carrying out, and the zone that the temperature of wherein should switching time measuring according to the humidity of being measured by described hygrometry mechanism and described temperature measuring mechanism is determined presets.
3. refrigerator as claimed in claim 1 or 2 is characterized in that:
Described dewfall suppresses the heater that the Antidewing on the partitioned portion that mechanism is arranged on the door that opens and closes described storeroom and door is used,
Described controlling organization presets, the benchmark current on time of the heater temperature of measuring based on described temperature measuring mechanism, that described Antidewing is used; And reference humidity,
The humidity of measuring in described hygrometry mechanism is higher than in the situation of described reference humidity, the current on time of the heater that will use described Antidewing is set as the setting value that is higher than described benchmark current on time, on the other hand, the humidity of measuring in described hygrometry mechanism is lower than in the situation of described reference humidity, and the current on time of the heater that will use described Antidewing is set as the setting value that is lower than described benchmark current on time.
4. such as the described refrigerator of any one in the claim 1～3, it is characterized in that:
The temperature of described temperature measuring mechanism outside the stopping period of the compressor of described kind of refrigeration cycle is measured described case.
5. refrigerator-freezer, it possesses the storeroom of foodstuff storing and makes refrigerant circulation and with the kind of refrigeration cycle of described storeroom cooling, it is characterized in that, comprising:
Measure the hygrometry mechanism of the cabinet humidity outward of described refrigerator-freezer;
Measure the temperature measuring mechanism of the cabinet temperature outward of described refrigerator-freezer;
The dewfall that suppresses described refrigerator-freezer dewfall suppresses mechanism; With
According to the temperature that the humidity of measuring in the described hygrometry of the compressor stopping period mechanism of described kind of refrigeration cycle and described temperature measuring mechanism measure, control the controlling organization that described dewfall suppresses mechanism.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2011211947A JP5391250B2 (en) | 2011-09-28 | 2011-09-28 | Refrigerator and freezer |
| JP2011-211947 | 2011-09-28 |
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| CN103033013A true CN103033013A (en) | 2013-04-10 |
| CN103033013B CN103033013B (en) | 2015-04-01 |
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| CN201210305767.6A Active CN103033013B (en) | 2011-09-28 | 2012-08-24 | Refrigerator and ice locker |
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| CN (1) | CN103033013B (en) |
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| CN105004126A (en) * | 2015-08-05 | 2015-10-28 | 合肥美的电冰箱有限公司 | Refrigerator refrigeration system and refrigerator |
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| CN106766578A (en) * | 2016-12-23 | 2017-05-31 | 青岛海尔股份有限公司 | The dewing-proof method and device of refrigerating equipment |
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| US11397048B2 (en) | 2019-01-10 | 2022-07-26 | Lg Electronics Inc. | Refrigerator |
| US11480382B2 (en) | 2019-01-10 | 2022-10-25 | Lg Electronics Inc. | Refrigerator |
| US11592228B2 (en) | 2019-01-10 | 2023-02-28 | Lg Electronics Inc. | Refrigerator |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN103033013B (en) | 2015-04-01 |
| JP5391250B2 (en) | 2014-01-15 |
| JP2013072595A (en) | 2013-04-22 |
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