CN103033013B - Refrigerator and ice locker - Google Patents

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

Refrigerator and refrigerator-freezer

Technical field

The present invention relates to the refrigerator and refrigerator-freezer that inhibit condensation.

Background technology

As background technology of the present invention, there is Japan Patent No. 3942688 publication (patent document 1).

The structure of patent document 1 possesses: the external air temperature sensor of the neighbouring configuration of the hinge cap of body upper part or substrate reception portion and extraneous air humidity sensor; The partitioned portion of Men Yumen arrange at least more than one prevent the heater that condenses; Usually according to the energising to the heater that prevents from condensing of external air temperature and extraneous air humid control, extraneous air humidity sensor be output into more than the higher limit preset or below lower limit when, only control the controlling organization of energising to the heater that prevents from condensing according to external air temperature sensor.

According to such scheme, describe the humidity detecting extraneous air accurately, carry out adding temperature control to precalculate the condensation heater turn on angle that prevents determined according to external air temperature and extraneous air humidity, and prevent to cause the exception on refrigerator body surface to condense because of the misoperation etc. of extraneous air humidity sensor and humid control, condensation can be prevented with few energy ezpenditure simultaneously.

Patent document 1: Japan Patent No. 3942688 publication

Summary of the invention

But, in structure in the past, as shown in Fig. 4 of patent document 1, consider that every certain hour To measures external air temperature and the extraneous air humidity of refrigerator, based in advance according to the structure of the transverse partition panel of refrigerator body, what the horizontal partition plate corresponding with extraneous air humidity to external air temperature that in the top of transverse partition panel and the refrigerator of bottom, desired temperature calculates did not condense respectively prevent condenses the calculating formula of turn on angle of heater, calculate the turn on angle respectively preventing condensation heater, respectively prevent the method that the change of the turn on angle of condensation heater is such.

But the external air temperature sensor of the hinge cap of body upper part or the neighbouring configuration in substrate reception portion and extraneous air humidity sensor, in order to prevent the water inlet from surrounding, are semi-hermetic structure.Like this, as shown in Fig. 8 of patent document 1, be subject to the impact of cooling in refrigerator and occurrence temperature changes, little on the impact of the mensuration of external air temperature sensor in the mensuration of every certain hour To, and large on the impact of hygrometry value in the hygrometry of outside air humidity sensor.Such as wet-bulb temperature is certain and dry-bulb temperature changes 0.5 DEG C time, relative humidity can be subject to the impact of 3%.

Thus, needing to prevent the condensation on refrigerator body surface turn on angle to set many, having the tendency that power consumption increases.

The present invention, in view of above-mentioned actual conditions, its object is to provide the humidity detecting extraneous air accurately, and stay in grade and inhibit condenses and realizes refrigerator and the refrigerator-freezer of energy-saving technology.

In order to reach above-mentioned purpose, the refrigerator of first aspect present invention be possess foodstuff storing storeroom and make refrigerant circulation and the kind of refrigeration cycle cooled by above-mentioned storeroom, it comprises: the hygrometry mechanism measuring the humidity outside the case of above-mentioned refrigerator; Measure the temperature measurement mechanism of the temperature outside the case of above-mentioned refrigerator; Suppress the condensation dampening mechanism that above-mentioned refrigerator condenses; And according to the temperature that humidity and the said temperature measuring means of above-mentioned hygrometry mechanism mensuration between the compressor withholding period of above-mentioned kind of refrigeration cycle measure, control the controlling organization of above-mentioned condensation dampening mechanism.

The refrigerator of the first first aspect present invention is applied to refrigerator-freezer by the refrigerator-freezer of second aspect present invention.

According to the present invention, can realize the humidity detecting extraneous air accurately, stay in grade and inhibit condenses and realizes refrigerator and the refrigerator-freezer of energy-saving technology.

Accompanying drawing explanation

Fig. 1 is the front view of the refrigerator representing embodiments of the present invention 1.

Fig. 2 is the X-X line sectional view of Fig. 1 of the case inner structure of the refrigerator representing embodiment 1.

Fig. 3 is the external air temperature sensor of state after the outside air sensor cap representing the refrigerator taking off embodiment 1 and the stereogram of extraneous air humidity sensor.

Fig. 4 is the schematic diagram of the structure of the kind of refrigeration cycle of the refrigerator representing embodiment 1.

Fig. 5 is the stereogram of the allocation position of radiating tube in the refrigerator representing embodiment 1.

Fig. 6 is the schematic diagram of the structure of the kind of refrigeration cycle of other examples of the refrigerator representing embodiment 1.

Fig. 7 is compressor is that ON(runs) time, to the schematic diagram that the length of time triple valve being switched to A side (outlet 34b side) or B side (outlet 34c side) is divided into multiple region to obtain.

Fig. 8 is the temperature of refrigerating chamber under the environment representing external air temperature 30 DEG C, extraneous air humidity 70% between refrigerator on-stream period and the schematic diagram of the relation of the hygrometry value of (extraneous air) humidity sensor measuring.

Fig. 9 represents that the running ON/OFF(of compressor stops/running) and the sequential chart of action control of triple valve.

Figure 10 is the schematic diagram of the relation of the current on time (duty) representing the rotation separating part heater relative with the external air temperature of embodiment 2.

Figure 11 is the schematic diagram representing the control making current on time (duty) movement shown in Figure 10.

Figure 12 is the schematic diagram of other examples representing the control making current on time (duty) movement shown in Figure 10.

The explanation of symbol

1 refrigerator

1S kind of refrigeration cycle

2 refrigerating chambers (storeroom)

2a refrigerating-chamber door (door)

2b refrigerating-chamber door (door)

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 measurement mechanism)

22 extraneous air humidity sensors (hygrometry mechanism)

23 rotate separating part (partitioned portion)

24 rotate separating part heaters (condensation dampening mechanism, prevent the heater that condenses)

Heat insulation partition wall (partition wall) on the upside of in the of 25

Heat insulation partition wall (partition wall) on the downside of in the of 26

27 horizontal separating parts (partition wall)

28 longitudinal subdivision portions (partition wall)

32 bypass pipes (kind of refrigeration cycle)

33 radiating tubes (condensation dampening mechanism, kind of refrigeration cycle)

34 triple valves (switching mechanism, kind of refrigeration cycle)

40 control substrate (controlling organization)

Detailed description of the invention

Hereinafter, with reference to the accompanying drawings of embodiments of the present invention.

<< embodiment 1>>

Fig. 1 is the front view of the refrigerator representing embodiments of the present invention 1, and Fig. 2 is the X-X line sectional view of the Fig. 1 of the case inner structure representing refrigerator.

The refrigerator 1 of embodiment 1, on the refrigerator body 1H forming its body, 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 top.Wherein, ice-making compartment 3 and upper strata refrigerating chamber 4 left and right between refrigerating chamber 2 and lower floor's refrigerating chamber 5 is set up in parallel.

Refrigerating chamber 2 and vegetable compartment 6 are storerooms of the refrigerated storage temperature section of about 3 ~ 5 DEG C.On the other hand, ice-making compartment 3, upper strata refrigerating chamber 4 and lower floor's refrigerating chamber 5 are storerooms of the cryogenic temperature section of approximately-18 DEG C.

Refrigerating chamber 2 possesses refrigerating-chamber door 2a, 2b of the clamshell doors (so-called French type) of left and right segmentation in side, front.Refrigerating-chamber door 2a, 2b axle pivot is arranged on the left and right leading edge portion of refrigerator body 1H.

As shown in Figure 2, multiple door frame 2e is possessed in the inner side of refrigerating-chamber door 2a, 2b.

Between refrigerating-chamber door 2a, 2b, be formed formed in the resin of the projecting accommodation space in the inner side of each refrigerating-chamber door 2a, 2b case toward each other to rotation separating part 23.

The chance that the vicinity rotating separating part 23 is exposed in extraneous air the opening and closing of refrigerating-chamber door 2a, 2b because of user is many.Therefore, owing in refrigerating chamber 2 being the low temperature of refrigerated storage temperature section, so there is below the dew-point temperature that rotates and become extraneous air near separating part 23, the possibility of the moisture condensation in extraneous air.

So, on the madial wall 2k of the central side of the accommodation space of formation refrigerating-chamber door 2a, be equipped and rotate separating part heater 24.Rotate separating part heater 24 to utilize because of the Joule heat produced that is energized, the temperature near rotation separating part 23 is risen to higher than the dew-point temperature of extraneous air.Thus, suppress to rotate the condensation near separating part 23.

Rotate separating part heater 24 there is the size of the length (the above-below direction length of Fig. 1) of the vertical of approximately refrigerating-chamber door 2a and arranged.

As shown in Figure 2, refrigerating chamber 2 is provided with multiple shelf 2d, by shelf 2d, refrigerating chamber 2 is divided into multiple storage space in the vertical.

Ice-making compartment 3, upper strata refrigerating chamber 4, lower floor's refrigerating chamber 5 and vegetable compartment 6 possess ice-making compartment door 3a, upper strata refrigerating chamber door 4a, the lower floor refrigerating chamber door 5a and vegetable compartment door 6a of pull-out type respectively.

In addition, on the face of storeroom (2,3,4,5, the 6) side of each door (2a, 2b, 3a, 4a, 5a, 6a), the mode of the external margin along each door is provided with seal member (not shown), when each door is closed, warm extraneous air is suppressed to enter in storeroom and cold air leaks from storeroom.

Refrigerator body 1H possesses the door sensor (not shown) of the open and-shut mode detecting the door (2a, 2b, 3a, 4a, 5a, 6a) arranged in each storeroom (2,3,4,5,6) respectively; Be judged to be state that each door is opened continue the stipulated time, such as more than 1 minute when, notify the siren (not shown) of user.

In addition, refrigerator body 1H possesses the temperature setting device (not shown) that user carries out the temperature setting of refrigerating chamber 2 and the temperature setting of upper strata refrigerating chamber 4, lower floor's refrigerating chamber 5 etc.Refrigerating-chamber door 2a has the guidance panel 2s for carrying out various setting, and 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 formed and be filled foamed heat-insulating material (polyurathamc) 10a between the outer container 1a of the periphery of the refrigerator 1 and interior case 1b of formation storeroom (2 ~ 6) and the heat insulating box 10 that formed is separated.Heat insulating box 10, except the foamed heat-insulating material 10a filled, there is also mounted the vacuum heat-insulation parts 10b that multiple thermal insulation is high.

In refrigerator body 1H, the upper strata refrigerating chamber 4 of the refrigerating chamber of refrigerated storage temperature section 2 and cryogenic temperature section and ice-making compartment 3(are with reference to Fig. 1) by the heat insulation partition wall in upside 25 heat insulation divide.

In addition, lower floor's refrigerating chamber 5 of cryogenic temperature section and the vegetable compartment 6 of refrigerated storage temperature section by the heat insulation partition wall in downside 26 heat insulation divide.

As indicated by the dashed line in figure 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 in the vertical direction is set.

As shown in Figure 1, on the top of horizontal separating part 27, the longitudinal subdivision portion 28 will separated in the lateral direction between ice-making compartment 3 and upper strata refrigerating chamber 4 is set.Wherein, longitudinal subdivision portion 28 is eliminated in 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, and the door (3a, 4a, 5a, 6a) possessed with the front of each storeroom (3,4,5,6) moves (being drawn out of loading) integratedly in the longitudinal direction.

Fig. 3 is the stereogram of external air temperature sensor under the state after the outside air sensor cap representing the refrigerator taking off embodiment 1 and extraneous air humidity sensor.

In refrigerator 1, the extraneous air humidity sensor 22 of humidity measuring extraneous air be configured in the hinge cap (outside air sensor cap 41) on the top of refrigerator body 1H or control substrate 40(with reference to Fig. 2) incorporating section near.Thus, the impact of temperature and humidity change of the refrigerating chamber 2 that the cold air that extraneous air humidity sensor 22 causes by the opening and closing of door (2a, 2b) flows out, the outer pressure fan 42(of case of the periphery of Machine Room 15 are with reference to Fig. 4) heat radiation that produces, dust impact little, not easily condense.

On the end face 10t of refrigerator 1, the hinge 41h that refrigerating-chamber door 2a axle pivot is arranged on refrigerator body 1H is screwed togather by pin thread (bolt etc.).

At the rear of hinge 41h, the roof 1H0 of refrigerator body 1H is formed the recessed portion 1H5 of spill, in recessed portion 1H5, is equipped with the external air temperature sensor 21 of the temperature measuring extraneous air, measure the extraneous air humidity sensor 22 of the humidity of extraneous air.

External air temperature sensor 21, extraneous air humidity sensor 22 are when the top of refrigerator body 1H is arranged on outside refrigerator body 1H, and the height dimension of refrigerator 1 increases.Therefore, it is made to be configured in recessed portion 1H5 recessed on roof 1H0.

Herein, external air temperature sensor 21 and extraneous air humidity sensor 22 is made to configure closely, more easily obtain the relevant of the humidity of external air temperature sensor 21 external air temperature measured and the extraneous air that extraneous air humidity sensor 22 measures, so be configured in together in recessed portion 1H5 recessed on roof 1H0.

On hinge 41h and external air temperature sensor 21, extraneous air humidity sensor 22, outside air sensor cap 41 covers setting as shown in the arrow α 1 of Fig. 3.On outside air sensor cap 41, run through the not shown passage be provided with for ventilating.

Therefore, although the external air temperature sensor 21 in outside air sensor cap 41, the configuration space of extraneous air humidity sensor 22 are semi-hermetic structure, but the extraneous air of outside air sensor cap 41 outside flows to around external air temperature, extraneous air humidity sensor 21,22 by passage, is accurately measured the temperature and humidity of extraneous air by external air temperature, extraneous air humidity sensor 21,22 respectively.

As shown in Figure 2, refrigerator 1 is provided with evaporimeter 7 as the cooling body making to cool in case in the evaporimeter receiving room 8 that the roughly back of lower floor's refrigerating chamber 5 possesses.As an example of evaporimeter 7, there is fin tube heat exchanger.

Above evaporimeter 7 in evaporimeter receiving room 8, be provided with pressure fan 9 in case, as the wind pushing mechanism making cooled air in the evaporator 7 (being called " cold air " by the air of the low temperature after carrying out heat exchange in the evaporator 7 below) at case Inner eycle.The example of propeller fan as pressure fan in case 9 can be enumerated.

With flow through the cold-producing medium heat exchange of evaporimeter 7 and cooled cold air, by pressure fan in case 9, through refrigerating chamber air-supply pipeline 11, vegetable compartment air-supply pipeline (not shown), the refrigerating chamber air-supply pipeline 12 of the configuration of the side, rear of each storeroom (2,6,3,4,5), 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), by control to the air output of refrigerating chamber 2 refrigerating chamber baffle plate 38, control to carry out open and close controlling to the vegetable compartment baffle plate (not shown) of the air output of vegetable compartment 6 and the refrigerating chamber baffle plate 39 controlled to 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 to pipeline of blowing.

When refrigerating chamber baffle plate 38 is the air-supply carried out under open mode to refrigerating chamber 2, the refrigerating chamber air-supply pipeline 11 of cold air through the rear of refrigerating chamber 2, illustrates the situation that blow-off outlet 2c is 3 from blow-off outlet 2c(Fig. 2 of multistage opening) be delivered to refrigerating chamber 2.Make the cooled cold air of refrigerating chamber 2, the refrigerating chamber return pipeline (not shown) that the refrigerating chamber return port (not shown) arranged from the bottom of refrigerating chamber 2 arranges through the side of evaporator receiving room 8, the bottom of Returning evaporimeter receiving room 8.

Not shown vegetable compartment baffle plate carries out the air-supply to the vegetable compartment 6 of the foot of refrigerator 1 when being open mode when, cold air to be blown pipeline by vegetable compartment, blows from vegetable compartment blow-off outlet (not shown) to vegetable compartment 6.Make the cooled cold air of vegetable compartment 6, the vegetable compartment return pipeline entrance 14b arranged from the front, bottom of partition wall 26 heat insulation in downside, by vegetable compartment return pipeline 14, exports the bottom of 14a Returning evaporimeter receiving room 8 from vegetable compartment return pipeline.

In the front of evaporimeter receiving room 8, be provided with the ice-making compartment 3 of cryogenic temperature section room, upper strata refrigerating chamber 4, the partition member 13 separated between lower floor's refrigerating chamber 5 and evaporimeter receiving room 8.Partition member 13 is formed blow-off outlet 3c, 4c, 5c.

When refrigerating chamber baffle plate 39 is open mode, cold air flows through the refrigerating chamber air-supply pipeline 12 at upper strata refrigerating chamber 4 rear, blows from blow-off outlet 3c, 4c, 5c respectively to ice-making compartment 3, upper strata refrigerating chamber 4, lower floor's refrigerating chamber 5.

On partition member 13, be provided with refrigerating chamber return port 13i in the position of the bottom, depths of lower floor's refrigerating chamber 5, make the ice-making compartment 3 of cryogenic temperature section room, upper strata refrigerating chamber 4, the cooled cold air of lower floor's refrigerating chamber 5 flow into evaporimeter receiving room 8 by refrigerating chamber return port 13i.Wherein, refrigerating chamber return port 13i has the width dimensions roughly equal with the width of evaporimeter 7 (the paper above-below direction of Fig. 2).

< kind of refrigeration cycle 1S>

Then, the kind of refrigeration cycle 1S of refrigerator 1 is described.

Fig. 4 is the schematic diagram of the structure of the kind of refrigeration cycle of the refrigerator representing embodiment 1.

Refrigerator 1, in order to make storeroom (2,3,4,5,6) (with reference to Fig. 1) cooling, possesses the kind of refrigeration cycle 1S that cold-producing medium flows through.

Kind of refrigeration cycle 1S, by pipe 37 using the compressor 16 of compressed refrigerant, the cooling mechanism 29(30,31,33 that dispels the heat to the heat of the cold-producing medium carried from compressor 16), as the mechanism of decompressor that the cold-producing medium carried from cooling mechanism 29 is reduced pressure capillary 44, with the cold-producing medium carried from capillary 44, air cooled evaporimeter 7 is connected in turn.The cold-producing medium of (circulation) thermal medium is flow through in the pipe 37 connecting this compressor 16, cooling mechanism 29, capillary 44, evaporimeter 7.

The refrigerant compression of low temperature, low pressure is high temperature, high pressure by compressor 16.As shown in Figure 2, in the Machine Room 15 that the rear, bottom that compressor 16 is arranged on refrigerator body 1H is arranged.

Evaporimeter 7 makes the cold-producing medium evaporation of the gas-liquid mixed of carrying from capillary 44, is made the Air flow (from air drawn heat of evaporation) flow through in evaporimeter receiving room 8 by the latent heat of cold-producing medium during evaporation, to storeroom (2,3,4,5,6) supply cold air.

Cooling mechanism 29 shown in Fig. 4, has the Machine Room 15(of the rear lower portion configuration of refrigerator 1 with reference to Fig. 2) in not shown in condenser 30(Fig. 2 of arranging) and radiating tube 31,33.

As an example of condenser 30, there is fin tube heat exchanger.The outer pressure fan 42(of case is equipped with reference to not shown in Fig. 4, Fig. 2 in Machine Room 15), the outer pressure fan 42 of case is operated, promotes the heat radiation of condenser 30 thus.

Fig. 5 is the stereogram of the allocation position representing radiating tube in refrigerator.

Radiating tube 31 shown in dotted lines in Figure 5, and the outer container 1a shown in Fig. 2 and the heat insulating box 10(between interior case 1b are with reference to Fig. 5) the face of outer container 1a configure in contact.Namely, with the condenser 30(in Machine Room 15 with reference to Fig. 4) represent with thick dashed line in radiating tube 31(Fig. 5 of being connected) draw in Machine Room 15, under the state contacted with outer container 1a face, the left surface 10h of heat insulating box 10 configures up and down, the front portion crossing over end face 10t configures up and down on right flank 10m, and represent with fine dotted line in the 10s(Fig. 5 of its back side), again enter Machine Room 15, with the triple valve 34(in Machine Room 15 with reference to Fig. 4) be connected.

Wherein, in 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 that back side 10s configures, and uses thick dashed line and fine dotted line to distinguish, and figure is easily watched.Therefore, script is same radiating tube and the radiating tube 31 of same diameter.

Outer container 1a(is with reference to Fig. 2) be steel plate manufacture, represented by dashed line in radiating tube 31(Fig. 5) by configuring in contact with the inner face of outer container 1a, the heat of radiating tube 31 is conducted on outer container 1a, dispel the heat well from the outer of outer container 1a towards the air case.

Represent with thick line in radiating tube 33(Fig. 5 be connected by triple valve 34 with radiating tube 31 shown in Fig. 4), be configured in the respective inner front edge portion (front openings edge part) in the heat insulation partition wall in upside 25 that in Fig. 5 of heat insulating box 10, two chain-dotted lines represent, the heat insulation partition wall in downside 26, horizontal separating part 27 and longitudinal subdivision portion 28.

These partition walls (separating part) (25,26,27,28) contact so be low temperature with storeroom (2,3,4,5,6), and be configured in the opening edge portion of each storeroom (2,3,4,5,6) due to the front part of partition wall (25,26,27,28), easily contact extraneous air because of the opening and closing of user's opposite house (2a, 2b, 3a, 4a, 5a, 6a).Therefore, may condense when the front openings edge surface temperature of partition wall (25,26,27,28) becomes below the dew-point temperature of extraneous air.

So, in order to prevent front openings edge (particularly the front part in the heat insulation partition wall 25 in upside, the heat insulation partition wall in downside 26, horizontal separating part 27 and the longitudinal subdivision portion 28) condensation to refrigerator body 1H, configuration radiating tube 33.Thus, the heat flowing through the cold-producing medium of the high temperature of radiating tube 33 is dispelled the heat to the front openings edge of refrigerator body 1H, inhibits this front openings edge to become below the dew-point temperature of extraneous air.

In the inside of Machine Room 15, arrange triple valve 34(with reference to Fig. 4) as heat dispersion controlling organization.The export department 31o(of radiating tube 31 is with reference to Fig. 5) enter Machine Room 15, with entrance 34a(reference Fig. 4 of triple valve 34) be connected.

Triple valve 34 is made up of an entrance 34a and two outlet 34b, 34c.

Triple valve 34 is the motor-driven valves that the cold-producing medium flowed into from entrance 34a can be made to become following four kinds of patterns: (1) flows to the state (entrance 34a is open mode, and outlet 34b is open mode, and outlet 34c is closed condition) of radiating tube 33 from outlet 34b; (2) state (entrance 34a is open mode, and outlet 34b is closed condition, and outlet 34c is open mode) of bypass pipe 32 is flowed to from outlet 34c; (3) state (entrance 34a is open mode, and outlet 34b is closed condition, and outlet 34c is closed condition) of radiating tube 33, bypass pipe 32 both sides is not flowed to from outlet 34b, 34c; (4) state (entrance 34a is open mode, and outlet 34b is open mode, and outlet 34c is open mode) of radiating tube 33, bypass pipe 32 both sides is flowed to respectively from outlet 34b, 34c.

The elemental motion of triple valve 34 is, be that ON(runs 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 condensation at the front openings edge (front part in the heat insulation partition wall in the upside particularly shown in Fig. 5 25, the heat insulation partition wall in downside 26, horizontal separating part 27 and longitudinal subdivision portion 28) to refrigerator body 1H.By the switching with triple valve 34, make the cold-producing medium of high temperature flow through bypass pipe 32, that suppresses the high temperature refrigerant because flowing through radiating tube 33 to produce as much as possible enters to the hot-fluid in case, realizes energy-saving technology.

On the other hand, compressor 16 is OFF(stopping) time, be switched to radiating tube 33 side, make the cold-producing medium of high temperature flow through radiating tube 33, prevent the condensation at the front openings edge to 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.

The pipe 37 of the export department 33o of radiating tube 33 is equipped with check-valves 36, stops the adverse current from the export department 32o of drier 43 and bypass pipe 32 to radiating tube 33.

In Machine Room 15, in the downstream of check-valves 36, pipe 37 confluxes with the side, downstream of bypass pipe 32, is connected with drier 43.Drier 43 is for dehumidifying to the moisture drying in cold-producing medium, and prevent the refrigerant freezeout of pipe 37 inside from blocking, cold-producing medium becomes and cannot circulate.

Drier 43 is connected with capillary 44 by two-port valve 35.

The elemental motion of two-port valve 35 is, compressor 16 be ON(run) time " valve opening ", on the other hand, compressor 16 for OFF(stopping) time " valve closing ".At compressor 16 for OFF(stops) front " valve closing ", carry out the recovery of the cold-producing medium of the high temperature existed from the downstream of two-port valve 35 to evaporimeter 7.

Specifically, owing to being that OFF(stops at compressor 16) time, implement frost cooling (cooling with the frost around evaporimeter 7), by by two-port valve 35 " valve closing ", suppress the cold-producing medium inflow evaporimeter 7 of high temperature, realize energy-saving technology.

Wherein, make the part of the pipe 37 from evaporimeter 7 towards compressor 16 and pipe 37a and capillary 44 near to or in contact with, make towards the heat of the cold-producing medium in the capillary 44 of evaporimeter 7, mobile (conduction) is to the cold-producing medium in pipe 37a.

As shown in Figure 2, on the top of evaporimeter 7, possesses the evaporator temperature sensor 20 be arranged on evaporimeter 7, refrigerator temperature sensor 17 is possessed in refrigerating chamber 2, in lower floor's refrigerating chamber 5, possess freezer temperature sensor 19, detect the temperature of the temperature of evaporimeter 7, the temperature of refrigerating chamber 2 and lower floor's refrigerating chamber 5 respectively.In vegetable compartment 6, be configured with vegetable compartment temperature sensor 18.

Refrigerator temperature sensor 17, vegetable compartment temperature sensor 18, freezer temperature sensor 19, be arranged on the place that the blowout cold air to each storeroom (2,6,3,4) does not directly blow to, thus improve accuracy of detection.

And then as mentioned above, refrigerator body 1H possesses the external air temperature sensor 21 shown in Fig. 3 and the extraneous air humidity sensor 22 that detect and arrange the humiture environment (external air temperature, extraneous air humidity) of the surrounding of refrigerator 1.

Wherein, in above-mentioned explanation, exemplified with the kind of refrigeration cycle 1S of Fig. 4, the kind of refrigeration cycle 2S shown in the Fig. 6 not possessing two-port valve 35 also can be used.

Fig. 6 is the schematic diagram of the structure of the kind of refrigeration cycle of other examples of the refrigerator representing embodiment 1.

In this situation, triple valve 34 plays the effect of two-port valve 35.That is, stop before compressor 16, closing outlet 34b, 34c of triple valve 34, proceed to radiating tube 33, bypass pipe 32 downstream evaporimeter 7 till the refrigerant-recovery (making compressor 16 side in the downstream of the flow of refrigerant evaporator 7 of high temperature) of high temperature.Thus, suppress when cooling running and starting the cold-producing medium of the high temperature in the downstream of radiating tube 33, bypass pipe 32 to flow into evaporimeter 7, prevent overload running, realize energy-saving technology.

< control part >

The rear portion of end face 10t of the refrigerator body 1H is in fig. 2 equipped has carried CPU(Central Processing Unit: CPU), ROM(Read Only Memory: read-only storage) or RAM(Random Access Memory: random access memory) etc. the control substrate 40 of memory, timer, interface circuit etc.The interface circuit controlling substrate 40 is connected with the guidance panel 2s etc. that said external air temperature sensor 21, extraneous air humidity sensor 22, evaporator temperature sensor 20, freezer temperature sensor 19, refrigerator temperature sensor 17, vegetable compartment temperature sensor 18, the door sensor detecting the open and-shut mode of each door of storage room (3a, 4a, 5a, 6a) (with reference to Fig. 1) respectively, refrigerating-chamber door 2a are arranged.Interface circuit comprises the control circuit etc. of the various actuators such as A/D, D/A converter, induction (amplification) circuit, compressor 16.

The following control of refrigerator 1 is performed by the control program prestored in execution ROM.

Namely, the ON/OFF(carrying out compressor 16 runs/stops) and the control of not shown each actuator that triple valve 34, two-port valve 35, refrigerating chamber baffle plate 38, vegetable compartment baffle plate and refrigerating chamber baffle plate 39 are individually operated, in case in evaporimeter receiving room 8, pressure fan 9(is with reference to Fig. 2) and Machine Room 15 in the outer pressure fan 42(of case with reference to Fig. 4) ON/OFF(run/stop) controlling and rotating speed controls, notify the ON/OFF(operation/stopping of the siren of the open mode of above-mentioned door (2a, 2b, 3a, 4a, 5a, 6a) (with reference to Fig. 1)) control etc.

The method > of the switching control of < triple valve 34

Then, the method that the switching of triple valve 34 controls is described.

Triple valve 34 runs with the running ON/OFF(of compressor 16/stops) corresponding, make the cold-producing medium of high temperature flow through the situation (being called A side) of radiating tube 33 and open switching between situation (being called B side) that outlet 34c makes the cold-producing medium of high temperature flow through bypass pipe 32 opening outlet 34b.

Switching as triple valve 34 controls, and substantially carries out the control of following (1), (2).

(1) OFF(of compressor 16 stops) period, make triple valve 34 be A side (opening outlet 34b makes the cold-producing medium of high temperature flow through radiating tube 33).Thus, condensation is suppressed by improving the temperature at the front openings edge (with reference to Fig. 5) of partition wall (25,26,27,28).

(2) compressor 16 become ON(run) after when, carry out " triple valve switch control " that triple valve 34 is switched between A side (radiating tube 33 side of the front openings edge configuration of partition wall) with B side (bypass pipe 32 side), until become OFF(stopping).As mentioned above, make the cold-producing medium of high temperature flow through radiating tube 33, improve the temperature at the front openings edge (with reference to Fig. 5) of partition wall (25,26,27,28) thus, suppress condensation.

Herein, the relation (relation of contradiction) of the antinomy that the time longer (more carrying out suppressing the control of condensation) of improving the temperature at the front openings edge of partition wall (25,26,27,28) more needs the cooling in case to operate.

Therefore, as shown in (2), make the cold-producing medium of high temperature not be always but flow through radiating tube 33 side off and on, shorten thus and cooling running is executed the loaded time (time of suppressing the control of condensation), suppress the increase of power consumption.That is, in order to realize economize on electricity, in the scope that the front openings edge of partition wall (25,26,27,28) does not condense, the cold-producing medium of high temperature is made to flow through bypass pipe 32.

So, as described below, obtain and make the cold-producing medium of high temperature flow through the time (triple valve 34 being switched to the time of A side) of radiating tube 33 and flow through the time (triple valve 34 being switched to the time of B side) of bypass pipe 32.Wherein, when making the cold-producing medium of high temperature flow through radiating tube 33, as shown in Figure 4, because triple valve 34 is switched to A side (outlet 34b side), the cold-producing medium of high temperature in bypass pipe 32, is not flow through.On the other hand, do not flow through in the time of the cold-producing medium of high temperature in radiating tube 33, because triple valve 34 is switched to B side (outlet 34c side), therefore in bypass pipe 32, flow through the cold-producing medium of high temperature.

Fig. 7 is compressor is that ON(runs) time, to the schematic diagram that the length of time triple valve being switched to A side (outlet 34b side) or B side (outlet 34c side) is divided into multiple region to obtain.

The transverse axis of Fig. 7 is the external air temperature that external air temperature sensor 21 measures, and the longitudinal axis of Fig. 7 is the extraneous air humidity that extraneous air humidity sensor 22 measures.

When external air temperature is high temperature, saturated steam amount is large, and the steam vapour amount contained in extraneous air is many, and, and difference between the refrigerated storage temperature of refrigerator 1 (such as 1 DEG C ~ 3 DEG C) is large.Therefore, the tendency that the front openings edge of partition wall (25,26,27,28) easily condenses is had.

When external air temperature is low temperature, saturated steam amount is few, and the steam vapour amount contained in extraneous air is few, and, and difference between the refrigerated storage temperature of refrigerator 1 (such as 1 DEG C ~ 3 DEG C) is little.Therefore, the tendency that the front openings edge of partition wall (25,26,27,28) not easily condenses is had.

On the other hand, when the humidity of extraneous air is high, containing a large amount of steam in extraneous air, therefore there is the tendency that the front openings edge of partition wall (25,26,27,28) easily condenses.

When the humidity of extraneous air is low, the steam contained in extraneous air is few, therefore has the tendency that the front openings edge of partition wall (25,26,27,28) not easily condenses.

Therefore, front openings edge for partition wall (25,26,27,28) does not condense, 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, obtains in subregional as illustrated in fig. 7 by external air temperature and extraneous air humidity.Wherein, the details in region are describing afterwards.

Fig. 8 is the temperature of refrigerating chamber under the environment representing outside air temperature 30 DEG C, extraneous air humidity 70% between refrigerator on-stream period and the schematic diagram of the relation of the hygrometry value of (extraneous air) humidity sensor measuring.

The transverse axis of Fig. 8 is through the time (minute), and the longitudinal axis of Fig. 8 is that refrigerator temperature sensor 17(is with reference to Fig. 2) humidity (represented by dashed line in Fig. 8) that the temperature (representing with chain-dotted line in Fig. 8) of the refrigerating chamber 2 that measures, extraneous air humidity sensor 22 measure, humidity (ambient humidity, light and temperature indicated by the solid line in Fig. 8) at the extraneous air of the position finding isolated with refrigerator 1.

Symbol T0 shown in Fig. 8 is that the cooling that compressor 16 is operated operated between withholding period, that is, make the time period that compressor 16 stops.Symbol T1 is the time period of carrying out the running that refrigerating chamber 2 is cooled, that is, be compressor 16 is operated and opens refrigerating chamber baffle plate 38(with reference to Fig. 2) time period.Symbol T2 is the time period of carrying out the running that refrigerating chamber (3,4,5) is cooled, that is, be compressor 16 is operated and opens refrigerating chamber baffle plate 39(with reference to Fig. 2) time period.

Generally speaking, compressor 16 is that ON(runs) time, because short OFF(stops) frost of time cooling (cooling that the frost that evaporimeter 7 adheres to carries out) etc., the variations in temperature of refrigerating chamber 2 is large.

Compressor 16 is OFF(stopping) time, cooling mainly with refrigerating chamber (3,4,5) operates (compressor 16 is ON(operation), refrigerating chamber baffle plate 39(is with reference to Fig. 2) open, refrigerating chamber baffle plate 38(is with reference to Fig. 2) close) terminate, so the few situation of the variations in temperature of refrigerating chamber 2 is many.

As can be seen from Figure 8, the humidity (dotted line in Fig. 8) of the extraneous air that extraneous air humidity sensor 22 measures, is elevated with the variation up and down of the temperature of refrigerating chamber 2, is subject to the large impact of refrigerating chamber 2 temperature.Infer this be configured in refrigerator body 1H due to extraneous air humidity sensor 22 roof 1H0 on be formed as in the recessed portion 1H5 of concavity, so be easily subject to the impact of the temperature of refrigerating chamber 2.

On the other hand, in the time period T0 between cooling running withholding period, the measured value (dotted line in Fig. 8) of extraneous air humidity sensor 22 is stable.Between cooling running withholding period, extraneous air humidity sensor 22 is 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 measures, uses the measured value of the time period T0 between cooling running withholding period, as the humidity of the extraneous air used when cooling running next time.

Herein, the measured value of the extraneous air humidity sensor 22 used can be the measured value before the running of cooling next time of the time period T0 between compressor 16 withholding period, 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 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 area 0 ~ 3 shown in Fig. 7.

When the humidity zoning according to external air temperature, extraneous air, use the winter temperature 15 DEG C of the experimental condition of the power consumption of JIS, humidity 55% and summer temp 30 DEG C, humidity 70% as benchmark.

Obtain the time (making the cold-producing medium of high temperature flow through the time of bypass pipe 32) triple valve 34 being switched to B side (34c side) and the time (making the cold-producing medium of high temperature flow through the time of radiating tube 33) triple valve 34 being switched to A side (34b side).

Therefore, about external air temperature, by from the low external air temperature 13 DEG C of the ratio 15 DEG C covering JIS experimental condition in winter and temperature 15 DEG C to covering experimental condition and the high external air temperature 33 DEG C of trisections of the ratio 30 DEG C of temperature 30 DEG C in summer, 19 DEG C, 26 DEG C are set as the external air temperature on the border in region.

About the humidity of extraneous air, by from cover JIS winter experimental condition and humidity 55% ratio 55% high 5% extraneous air humidity 60% to cover summer experimental condition and humidity 70% ratio 70% high 5% extraneous air humidity 75% between be divided into 2 parts, conveniently set 65%, as the border being divided into trizonal extraneous air humidity.

Wherein, when obtaining time triple valve 34 being switched to B side (making the cold-producing medium of high temperature flow through bypass pipe 32), when being higher than 65% by the humidity set on border, triple valve 34 is switched to the time shorten (by elongated for the time that triple valve 34 is switched to A side) of B side, when being lower than 65% by the humidity set on border, 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, using external air temperature 26 DEG C ~ 33 DEG C and extraneous air humidity 0 ~ 75% as region 1.

Using external air temperature 19 DEG C ~ 26 DEG C and extraneous air humidity 0 ~ 65% as region 2.

Using external air temperature 13 DEG C ~ 19 DEG C and extraneous air humidity 0 ~ 60% as region 3.

Area 0 is the region beyond region 1,2,3.Due in area 0, be fixing control triple valve 34 being switched to A side (making the cold-producing medium of high temperature flow through radiating tube 33), so the front openings edge of partition wall (25,26,27,28) (with reference to Fig. 5) does not condense.

In each region 1 ~ 3, do not condense as condition with the front openings edge of partition wall (25,26,27,28) (with reference to Fig. 5), determine at certain in (necessarily) time, the cold-producing medium that triple valve 34 is switched to A side, make high temperature is flow through the time of radiating tube 33; And the cold-producing medium that triple valve 34 is switched to B side, make high temperature is flow through the time of bypass pipe 32.

Namely, repeatedly confirm how long triple valve 34 is switched to B side from A side in certain (necessarily) time, the cold-producing medium of high temperature is made to flow through bypass pipe 32 also not in the upper condensation in the front openings edge (with reference to Fig. 5) of partition wall (25,26,27,28), the combination of the time determining to be switched to by triple valve 34 in this certain (necessarily) time B side and time triple valve 34 being switched to A side.

Herein, preferably to make the maximum mode of the ratio of time triple valve 34 being switched to B side (making the cold-producing medium of high temperature flow through bypass pipe 32) determine combination.This is that the heat of the cold-producing medium of high temperature owing to inhibit radiating tube 33 enters in case, contributes to energy-saving technology.

Wherein, the area 0 of the oblique line of Fig. 7, as mentioned above, is control triple valve 34 being fixed as A side, that is, continues the region of the refrigerant flow direction radiating tube 33 making high temperature.

Confirm the switching time to B side (the time period Bt of aftermentioned Fig. 9) of triple valve 34, that is, make the time that the cold-producing medium of high temperature flows through bypass pipe 32 have following relation.

That is, the B side switching time in the < switching time region, B side 3 in the < switching time region, B side 2 in region 1.

Such as, confirm with region 1(external air temperature 26 DEG C ~ 33 DEG C, extraneous air humidity 0 ~ 75%) 10 minutes, region 2(external air temperature 19 DEG C ~ 26 DEG C, extraneous air humidity 0 ~ 65%) 15 minutes, region 3(external air temperature 13 DEG C ~ 19 DEG C, extraneous air humidity 0 ~ 60%) 20 minutes, triple valve 34 being switched to B side makes the cold-producing medium of high temperature flow through bypass pipe 32, and the front openings edge (with reference to Fig. 5) of partition wall (25,26,27,28) does not also condense.

On the other hand, the triple valve 34 determined to the switching time (the time period At of aftermentioned Fig. 9) of A side, that is, makes the cold-producing medium of high temperature flow through the time of radiating tube 33, has following relation.

The A side switching time in the > switching time region, A side 3 in the > switching time region, A side 2 in region 1

Pre-determine area 0 ~ 3 shown in Fig. 7 and the A corresponding with each area 0 ~ 3 side/B side switching time and fixing to A side, and by table, reflect figure, source program etc. and be stored in memory (ROM).

The example > of the switching control of < triple valve 34

Then, use Fig. 8 that the example that the switching of triple valve 34 controls is described.

The example of the control method of explanation being applied to the running of refrigerator 1 is illustrated in Fig. 9.

Fig. 9 represents that the running ON/OFF(of compressor runs/stops) and the sequential chart of 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 is for opening and refrigerant flow direction radiating tube 33), and/standard-sized sheet/B opens (outlet 34c is for opening and refrigerant flow direction bypass pipe 32) action of/full cut-off, the A side rigid condition of triple valve sets up (area 0 of Fig. 7)/be false, compressor ON/OFF(runs/stop).

To the moment t1 of Fig. 9, compressor 16 is in OFF(stopping) period.

Be that OFF(stops to compressor 16 to the moment t1 of Fig. 9) period (cooling running between withholding period) humidity that measured by extraneous air humidity sensor 22, the compressor 16 of the moment t1 ~ t8 after determining with Fig. 7 is in ON(and runs) use during switching time of the A side/B side of triple valve 34 between the cooling on-stream period of period.This is because, as mentioned above, between refrigerator 1 on-stream period time (compressor 16 run for ON()) variation of the measured value of extraneous air humidity sensor 22 greatly, the humidity of correct extraneous air can not be measured.

In addition, the outside air temperature that the external air temperature sensor 21 of the current time before the humidity using this extraneous air humidity sensor 22 to measure and t1 measures, use the switching time of the information of the Fig. 7 stored in memory (ROM) and the B side/A side corresponding respectively with area 0 ~ 3 or whether be fixed as the information of A side, determine which region being arranged in area 0 ~ 3, obtain the switching time of corresponding B side/A side or whether be fixed as A side.

Thus, though determine the cold-producing medium of time high temperature triple valve 34 being switched to B side flow through bypass pipe 32 time (the time Bt of Fig. 9) even and if the cold-producing medium of time high temperature triple valve 34 being switched to A side flow through the time (the time At of Fig. 9) of radiating tube 33 or whether be fixed as A side.Below, according to such flow process, the external air temperature that the humidity using extraneous air humidity sensor 22 to measure and external air temperature sensor 21 measure, carries out the switching of the B side/A side of triple valve 34 or whether is fixed as the control of A side.

When arriving the moment t1 of Fig. 9, compressor 16 becomes ON(and runs).The humidity that during the external air temperature measured according to the external air temperature sensor 21 of the current time before moment t1 and compressor 16 are OFF, (cooling operated between withholding period) is measured by extraneous air humidity sensor 22 in advance, use the information of Fig. 7 etc. of memory (ROM), determine the switching time (At1) (in this situation in region 1 ~ 3 some) of the A side being which and the correspondence in area 0 ~ 3.Then, the At1(switching time moment t1 ~ t2 using Fig. 7 to determine) period, triple valve 34 is switched to 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 humidity that during the external air temperature measured according to the external air temperature sensor 21 of the current time before moment t2 and compressor 16 are OFF, (cooling operated between withholding period) is measured by extraneous air humidity sensor 22 in advance, use the information of Fig. 7 of memory (ROM) etc., determine that the switching time (Bt1) of the B side being which and the correspondence in area 0 ~ 3 is (in this situation, some in region 1 ~ 3), the Bt1(switching time moment t2 ~ t3 obtained) period, triple valve 34 is switched to B side, the cold-producing medium of high temperature is made to flow through bypass pipe 32(with reference to Fig. 4).

During due in t3, the humidity that during the external air temperature measured according to the external air temperature sensor 21 of the current time before moment t3 and compressor 16 are OFF, (cooling operated between withholding period) is measured by extraneous air humidity sensor 22 in advance, use the information of Fig. 7 of memory (ROM) etc., determine the switching time (At2) (in this situation, in region 1 ~ 3 some) of the A side being which and the correspondence in area 0 ~ 3.Then, the At2(switching time moment t3 ~ t4 obtained) period, triple valve 34 is switched to 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 humidity that during the external air temperature measured according to the external air temperature sensor 21 of the current time before moment t4 and compressor 16 are OFF, (cooling operated between withholding period) is measured by extraneous air humidity sensor 22 in advance, use the information of Fig. 7 of memory (ROM) etc., determine the switching time (Bt2) (in this situation, in region 1 ~ 3 some) of the B side being which and the correspondence in area 0 ~ 3.Then, the Bt2(switching time moment t4 ~ t5 obtained) period, triple valve 34 is switched to 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 humidity that during the external air temperature measured according to the external air temperature sensor 21 of the current time before moment t5 and compressor 16 are OFF, (cooling operated between withholding period) is measured by extraneous air humidity sensor 22 in advance, similarly determine it is in which and switching time this situation of At3(in area 0 ~ 3, some in region 1 ~ 3).Then, in the switching time obtained during At3, triple valve 34 is switched to A side, makes the cold-producing medium of high temperature flow through radiating tube 33(with reference to Fig. 4).

Wherein, external air temperature sensor 21 is sampled to measured value at any time, at the moment t6 of Fig. 9, judge that the external air temperature that external air temperature sensor 21 measures and compressor 16 are as (cooling and operate between withholding period) area 0 that the humidity measured by extraneous air humidity sensor 22 is in advance positioned at Fig. 7 during OFF, be therefore fixed as A side (the moment t6 ~ t10 of Fig. 9) by triple valve 34.

On the other hand, when the moment t6 of Fig. 9 does not judge to be positioned at area 0, as mentioned above, utilizing Fig. 7 to determine is in which and switching time this situation of At3(in area 0 ~ 3, some in region 1 ~ 3), the At3(switching time moment t5 ~ t7 obtained) period, triple valve 34 is switched to 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 B side, the cold-producing medium of high temperature is made to flow through bypass pipe 32(with reference to Fig. 4), and because compressor 16 is from ON(operation) become OFF(stopping) (moment t8), so compressor 16 is OFF(stopping) period, triple valve 34 is switched to A side, makes the cold-producing medium of high temperature flow through radiating tube 33(Fig. 4).Because compressor 16 is (during OFF) between withholding period (moment t8 ~ t9), so measure the humidity of extraneous air with extraneous air humidity sensor 22.

When arriving the moment t9 of Fig. 9, be that OFF(stops by the compressor 16 of moment t8 ~ t9) external air temperature that measures of the external air temperature sensor 21 of current time before the humidity of the extraneous air of period and moment t9, use the information such as Fig. 7 of memory (ROM), determine the switching time (At4) (in this situation, in region 1 ~ 3 some) of the B side being which and the correspondence in area 0 ~ 3.Then, obtain switching time At4(Fig. 9 moment t9 ~ t11) period, triple valve 34 is switched to 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, during the external air temperature measured according to the external air temperature sensor 21 of the current time before moment t11 and compressor 16 are OFF, (cooling operated between withholding period) humidity that (the moment t8 ~ t9 of Fig. 9) is measured by extraneous air humidity sensor 22 in advance, similarly determines the switching time (Bt4) of the B side of area 0 ~ 3 and correspondence.Then, Bt4 switching time obtained, triple valve 34 is switched to B side, makes the cold-producing medium of high temperature flow through bypass pipe 32(with reference to Fig. 4).

Carry out same control afterwards.

Wherein, in embodiment 1, exemplified with the mensuration of external air temperature making external air temperature sensor 21, use the situation of the measured value of current time at any time, and in order to be not subject to refrigerator 1 cooling running impact, also can carry out between compressor 16 withholding period.

In this situation, the measured value of the external air temperature sensor 21 till the moment t1 ~ t8 between compressor 16 on-stream period shown in Fig. 9, measure between compressor 16 withholding period till using moment t1, the switching time of triple valve 34, the measured value of the external air temperature sensor 21 between compressor 16 withholding period till using moment t1 and the measured value of extraneous air humidity sensor 22, use the information of Fig. 7 etc. of memory (ROM), determine the switching time of the A side/B side of which and the correspondence in area 0 ~ 3 or whether be fixed as A side.Then, the control of triple valve 34 is carried out.

Similarly, moment t9 between compressor 16 on-stream period ~ the measured value of external air temperature sensor 21, measure between compressor 16 withholding period till use moment t8 ~ t9, the switching time of triple valve 34, use the measured value of external air temperature sensor 21 between compressor 16 withholding period till moment t8 ~ t9 and the measured value of extraneous air humidity sensor 22, use the information of Fig. 7 of memory (ROM) etc., determine the switching time of the A side/B side of which and the correspondence in area 0 ~ 3 or whether be fixed as A side, carrying out the control of triple valve 34.

According to embodiment 1, the extraneous air humidity sensor 22 of the humidity measuring extraneous air is configured in, the heat radiation of the impact of the temperature of refrigerating chamber caused by cold air that Yin Men (2a, 2b) opening and closing causes flows out and humidity change, the outer pressure fan 42 of the case of Machine Room 15 periphery, the impact of dust is little and be less likely to occur in the outside air sensor cap 41 on the refrigerator body 1H top condensed, or near the incorporating section controlling substrate 40.Extraneous air humidity sensor 22 uses semi-hermetic structure in order to prevent into water, and carries out the mensuration of the humidity of extraneous air between cooling running withholding period due to refrigerator 1, inhibits the impact being subject to cooling running.

Thus, detecting the humidity of extraneous air accurately, controlling according to carrying out switching to triple valve 34 switching time precomputed in the region of external air temperature and extraneous air humidity.Thus, without the need to making the cold-producing medium flowing through necessary above high temperature in the radiating tube 33 at the front openings edge of partition wall (25,26,27,28), anti-dew (suppressing condensation) can be carried out with less energy ezpenditure.

Wherein, the method obtaining the switching time of triple valve 34 of the Fig. 7 illustrated in embodiment 1 is an example, and the time (making the cold-producing medium of high temperature flow through the time of bypass pipe 32) triple valve 34 being switched to B side and the time (making the cold-producing medium of high temperature flow through the time of radiating tube 33) being switched to A side also can obtain switching time in zoning in more detail.Thereby, it is possible to realize further energy-saving technology.

Like this, also can set the condition of other external air temperature, the condition of extraneous air humidity and obtain switching time of triple valve 34, not be limited.

<< embodiment 2>>

The control that embodiment 2 carries out making the turn on angle of the rotation separating part heater 24 preventing the rotation separating part 23 between refrigerating-chamber door 2a, 2b shown in Fig. 1 from condensing to reduce.

In 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 that ON(runs at compressor 16) time and/or compressor 16 stop for OFF() time carries out, and preferably between compressor 16 withholding period (during OFF) (between cooling running withholding period) mensuration.

Thus, the mensuration of external air temperature can be carried out under the state not being subject to the impact cooling running.In this situation, the external air temperature used in the explanation of the medium embodiment 2 of Figure 10, refers to the external air temperature between compressor 16 withholding period.

In addition, 5 seconds periodic samplings are pressed to the temperature measuring value that the refrigerator temperature sensor 17 of the refrigerating chamber 2 shown in Fig. 2 measures.

Hygrometry value between 22 pairs of compressor 16 withholding periods of the extraneous air humidity sensor shown in Fig. 3 is sampled.

Figure 10 is the schematic diagram of the relation of the current on time (duty) of the rotation separating part heater of the external air temperature represented embodiment 2.The transverse axis of Figure 10 is the external air temperature that external air temperature sensor 21 measures, and the longitudinal axis of Figure 10 is the current on time (duty) rotating separating part heater 24.

The current on time (duty) rotating separating part heater 24 represents to make rated current within certain time with how many %(percentage) time flow through.Such as, 10sec(second) interior 6sec(second) rotate flow through rated current in separating part heater time, current on time (duty) is 60%.

According to Figure 10, to the external air temperature 10 DEG C that external air temperature sensor 21 measures, the current on time (duty) rotating separating part heater 24 is 0%, rotates separating part 23 and does not condense.On the other hand, the outside air temperature more than 36 DEG C that external air temperature sensor 21 measures, rotates the current on time that the current on time (duty) of separating part heater 24 is 100%(benchmark), inhibit the condensation to rotating separating part 23.

Thus, till the external air temperature 10 DEG C ~ 36 DEG C that external air temperature sensor 21 measures, by external air temperature 10 DEG C, current on time (duty) 0% being connected with external air temperature 36 DEG C, current on time (duty) 100%, at determining external air temperature 10 DEG C ~ 36 DEG C, suppress the current on time (duty) (current on time of benchmark) of the rotation separating part heater 24 to the condensation rotating separating part heater 24.

Then, illustrate that the temperature that the refrigerator temperature sensor 17 of the refrigerating chamber 2 according to Fig. 2 measures makes the current on time (duty) shown in Figure 10 move the control of (increase and decrease).

Figure 11 is the schematic diagram representing the control making the current on time (duty) mobile (increase and decrease) shown in Figure 10.Numeral below Figure 11 is the temperature of the refrigerating chamber 2 that refrigerator temperature sensor 17 measures.Numeral above Figure 11 is movement (increase and decrease) value of the current on time (duty) in the temperature section of refrigerating chamber 2 shown in Figure 10.This movement value does not condense to set for condition to rotate separating part heater 24.

The threshold value (1 DEG C, 3 DEG C, 6 DEG C, 18 DEG C) of the temperature of 4 points that this control measures based on refrigerator temperature sensor 17, makes the current on time (duty) shown in Figure 10 mobile.

When the temperature of refrigerating chamber 2 is less than 1 DEG C, make the current on time (duty) mobile+5% shown in Figure 10.

When the temperature of refrigerating chamber 2 is 1 DEG C ~ 3 DEG C, owing to being the usual running of refrigerating chamber 2, do not carry out the movement (± 0%) of the current on time (duty) shown in Figure 10.

When the temperature of refrigerating chamber 2 is 3 DEG C ~ 6 DEG C, make the current on time (duty) mobile-2% shown in Figure 10.

Below, similarly, when the temperature of refrigerating chamber 2 is more than 18 DEG C, mobile-100%(stops the energising to rotating separating part heater 24).

The current on time (duty) rotating 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 what make rotation separating part 23 prevents the optimization that condenses, and achieves the energy-saving technology of refrigerator 1.

Then, illustrate that the humidity that the extraneous air humidity sensor 22 according to Fig. 3 measures makes the current on time (duty) shown in Figure 10 move the control of (increase and decrease).

Figure 12 is the schematic diagram of other examples representing the control making current on time (duty) movement shown in Figure 10.The humidity that when numeral below Figure 12 is between compressor 16 withholding period, extraneous air humidity sensor 22 measures.Numeral above Figure 12 is movement (increase and decrease) value of the current on time (duty) of Figure 10 in the humidity section that between compressor 16 withholding period, extraneous air humidity sensor 22 measures.This movement value does not condense to set for condition to rotate separating part heater 24.

In this control, when guidance panel 2s shown in user Fig. 1 have selected the energy-saving mode reducing power consumption, based on threshold value (90%, 70%, 50%, 30%) (humidity of benchmark) of the temperature of four points of extraneous air humidity sensor 22 mensuration between compressor 16 withholding period, make the current on time (duty) mobile (increase and decrease) shown in Figure 10.

When the humidity 70% measured with extraneous air humidity sensor 22 between compressor 16 withholding period is for standard, because humidity 90% ~ 70%, humidity 70% ~ 50% are near the mark humidity 70%, therefore 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 energized.

When humidity more than 90%, make the current on time (duty) mobile+6% shown in Figure 10.

Humidity 50% ~ 30% and humidity lower than 30% when, to the current on time (duty) shown in Figure 10 mobile-6%.

Wherein, in this example, when selecting energy-saving mode exemplified with user, carry out the situation of the movement of the current on time (duty) shown in Figure 12, but also can be configured to the movement carrying out the current on time (duty) shown in Figure 12 when the usual running of refrigerator 1, when user manually have selected energy-saving mode, not carry out the movement utilizing the current on time (duty) shown in Figure 12 of extraneous air humidity sensor 22.Can also be user when manually have selected energy-saving mode, when humidity raises, remove the structure of energy-saving mode.

The situation that humidity is high can enumerate such as external air temperature 30 DEG C, humidity 75%, external air temperature 25 DEG C, humidity 65%, external air temperature 20 DEG C, humidity 60% etc.

According to embodiment 2, condense according to respectively preventing of calculating in advance according to the extraneous air humidity between external air temperature and the cooling running withholding period of impact that do not operate by the cooling of refrigerator 1 turn on angle of heater, temperature control is added, the control optimization that suppression is condensed to respectively preventing condensation heater.Thereby, it is possible to carry out anti-dew (suppressing condensation) with less energy ezpenditure.

Other embodiments of << >>

Wherein, in above-mentioned embodiment, exemplified with the situation on top extraneous air humidity sensor 22 being configured in refrigerator body 1H, and also can be configured in not by other refrigerator body 1H, refrigerating-chamber door 2a, 2b etc. of the impact of cooling running.

In addition, in above-mentioned embodiment, illustrate various structure, also can form appropriately combined for each structure.

Wherein, in above-mentioned embodiment, illustrate the refrigerator possessing refrigerating chamber 2 and refrigerating chamber (3,4,5), and the present invention also can be widely used in the refrigerator only possessing refrigerating chamber and the refrigerator-freezer be made up of refrigerating chamber.

Claims (4)

1. a refrigerator, it possesses the storeroom of foodstuff storing and makes refrigerant circulation and the kind of refrigeration cycle cooled by described storeroom, it is characterized in that, comprising:

Measure the hygrometry mechanism of the humidity outside the case of described refrigerator;

Measure the temperature measurement mechanism of the temperature outside the case of described refrigerator;

Suppress the condensation dampening mechanism that described refrigerator condenses; With

The temperature that the humidity measured according to hygrometry mechanism described between the compressor withholding period of described kind of refrigeration cycle and described temperature measurement mechanism measure, controls the controlling organization of described condensation dampening mechanism.

2. refrigerator as claimed in claim 1, is characterized in that:

Described condensation dampening mechanism comprises the front openings edge being arranged on the dividing plate 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 making the refrigerant bypass flowing through described radiating tube; With

Described radiating tube is flow through to the cold-producing medium of discharging from described compressor or flows through the switching mechanism that described bypass pipe switches,

Described controlling organization is according to the described switching carrying out described switching mechanism execution the switching time preset, and the region wherein determined according to the temperature that the humidity measured by described hygrometry mechanism and described temperature measurement mechanism measure this switching time presets.

3. refrigerator as claimed in claim 1 or 2, is characterized in that:

Described condensation dampening mechanism comprises the heater preventing condensing be arranged on the door of storeroom described in opening and closing and the partitioned portion of door,

Described controlling organization presets, the temperature measured based on described temperature measurement mechanism, to the described benchmark current on time preventing the heater condensed; And reference humidity,

When the humidity that described hygrometry mechanism measures is higher than described reference humidity, by to the described setting value preventing the current on time of heater condensed to be set as higher than described benchmark current on time, on the other hand, when the humidity that described hygrometry mechanism measures is lower than described reference humidity, by the described setting value preventing the current on time of the heater condensed to be set as lower than described benchmark current on time.

4. a refrigerator-freezer, it possesses the storeroom of foodstuff storing and makes refrigerant circulation and the kind of refrigeration cycle cooled by described storeroom, it is characterized in that, comprising:

Measure the hygrometry mechanism of the humidity outside the cabinet of described refrigerator-freezer;

Measure the temperature measurement mechanism of the temperature outside the cabinet of described refrigerator-freezer;

Suppress the condensation dampening mechanism that described refrigerator-freezer condenses; With

The temperature that the humidity measured according to hygrometry mechanism described between the compressor withholding period of described kind of refrigeration cycle and described temperature measurement mechanism measure, controls the controlling organization of described condensation dampening mechanism.