CN100578123C - Refrigerator - Google Patents
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- CN100578123C CN100578123C CN200710112052A CN200710112052A CN100578123C CN 100578123 C CN100578123 C CN 100578123C CN 200710112052 A CN200710112052 A CN 200710112052A CN 200710112052 A CN200710112052 A CN 200710112052A CN 100578123 C CN100578123 C CN 100578123C
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B40/00—Technologies aiming at improving the efficiency of home appliances, e.g. induction cooking or efficient technologies for refrigerators, freezers or dish washers
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- Devices That Are Associated With Refrigeration Equipment (AREA)
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Abstract
The invention provides a refrigerator provided with a damper unit disposed in the duct, which can prevent the damper unit from dewing and baffle from freezing. In order to switch the baffle of the damper unit, a control device (controling the circulation of cold air in switching chamber) controls the damper motor so that the damper motor is energized for self-heating. As the time to energize for self-heating, on precooling, the said motor is energized for self-heating, and during defrosting, the said motor is continually energized, after defrosting, the normal colling is performed and the energization of the damper motor is ended and returns to normal switching action control. On energizing, the energization of A phase coil of damper motor and the energization of B phase coil are alternately switched at regular intervals.
Description
Technical field
The present invention relates to a kind of refrigerator, deliver in the pipeline of storeroom, have the windshield device of the circulation of control cold air at the cold air that will generate by cooler.
Background technology
In the past, in home-use refrigerator, the position in that the bottom is leaned on by the back wall portion of refrigerator main body was provided with the cooler chamber that possesses cooler, and was provided with from this cooler chamber the pipeline that extends upward, is used for the cold air that generates is delivered to storeroom (for example switching the chamber).And, the windshield device (for example with reference to patent documentation 1) of the circulation that is used to control the cold air of supplying with to storeroom is installed in above-mentioned pipeline.
Figure 10 represents the outward appearance of this windshield device 1.That is, this windshield device 1 will constitute as lower device blocking integratedly ground: the frame section 2 that disposes about pipeline enclosure is divided into (obstruction); The baffle plate 4 that the peristome 2a that is formed on this frame section 2 is opened and closed; Rotate the driving mechanism portion 3 of this baffle plate 4.Above-mentioned driving mechanism portion 3 is pack in the shell 6 of the synthetic resin that forms slightly long rectangular box windscreen motor 7 and gear mechanism (not shown).And, rotating shaft 8 is rotated driving, this rotating shaft 8 is provided with highlightedly towards insides of pipes and from the bottom rearward end level of medial surface 6a in shell 6.
Above-mentioned baffle plate 4 constitutes rectangular plate shape by synthetic resin, and is connected with above-mentioned rotating shaft 8.And the inner face of this baffle plate 4 (following) is provided with, the seal member 5 that when the peristome 2a of frame section 2 is inaccessible the periphery of peristome 2a is sealed.Said frame portion 2 constitutes the rectangular frame shape by synthetic resin, make its from the bottom of the medial surface 6a of the shell 6 of above-mentioned driving mechanism portion 3 to the inside direction flatly extend, and be provided with integratedly with this shell 6.
This by blocking windshield device 1, though not shown, above-mentioned driving mechanism portion 3 is installed as follows, promptly is embedded in the recess of the heat-insulating material that constitutes duct wall portion.At this moment, the medial surface 6a of above-mentioned shell 6 is configured in pipeline.And, by control device (not shown) energising control, make baffle plate 4 carry out on-off action by above-mentioned windscreen motor 7, control thus from the circulation of the cold air of pipeline in storeroom.
Patent documentation 1: Japanese kokai publication hei 10-205957 communique
But, in above-mentioned refrigerator, become many and cause that cooling effectiveness reduces by the frosting of cooler.Therefore, (when accumulated running time arrives the stipulated time) for example termly stops the cooling operation, and Defrost operation is carried out in energising to defrosting heater.In this Defrost operation because the heat by heater melts the frost of cooler, so cooler is indoor and pipeline in be full of humid air than higher temperatures.
Herein, the storeroom side is compared with the cooler chamber and is in low temperature, and for above-mentioned windshield device 1 in the past, because most of parts are made of synthetic resin, and in shell 6, be built-in with windscreen motor 7 with metal motor frame, therefore exist other parts of ratio of heat capacities of this part big, though when Defrost operation temperature rise neither very big (consecutive low temperature state) situation.Therefore, during the baffle plate 4 after Defrost operation finishes open, dewfall takes place at the medial surface 6a of shell 6 on partly, this dew flows down and is accumulated in rotating shaft 8 parts.When so having accumulated dew near rotating shaft 8, this water freezed when the cooling after defrosting moved, and may make the on-off action of rotating shaft 8 and baffle plate 4 produce obstacle.
In order to prevent the dewfall of this windshield device 1, try to install the heater of the shell 6 that is used for portion of heat driven mechanism 3, for example on aluminium foil, paste the face heater of thin type heater in a part.But it is unfavorable that the additional complicated and cost that causes structure that has a heater rises.
Summary of the invention
The present invention In view of the foregoing makes, and its purpose is to provide a kind of refrigerator, is provided with the structure of windshield device in pipeline, can prevent the dewfall of windshield device and freezing of baffle plate by the formation of simple cheap.
To achieve these goals, refrigerator of the present invention is characterised in that, at the cold air that will generate by cooler in the pipeline that storeroom is carried, have the windscreen motor as drive source and windshield device that baffle plate is opened and closed, and, the energising of above-mentioned windscreen motor make baffle plate carry out the circulation of on-off action ground control cold air by being controlled, and the energising control module is set, when the on-off action of above-mentioned baffle plate beyond, above-mentioned windscreen motor carried out not the energising of using with the spontaneous heating of the on-off action of this baffle plate.
According to refrigerator of the present invention, in pipeline, be provided with windshield device, because beyond when the on-off action of baffle plate, the windscreen motor is provided with the energising control module that carries out the energising that spontaneous heating uses, therefore has the dewfall that can prevent windshield device and the outstanding effect of freezing of baffle plate by the formation of simple cheap.
Description of drawings
Fig. 1 represents one embodiment of the present of invention, is the flow chart of the treatment step controlled about the energising that the spontaneous heating of windscreen motor is used of expression.
Fig. 2 is a vertical profile side view of roughly representing the integral body formation of refrigerator.
Fig. 3 is the amplification vertical profile side view of expression cooler chamber and near formation thereof.
Fig. 4 is the stereogram of windshield device.
Fig. 5 is the figure of step mode that is used to illustrate the coil of windscreen motor.
Fig. 6 is the block diagram of the electric formation of expression pith.
Fig. 7 is the figure of the formation of expression freeze cycle.
Fig. 8 is the figure of expression result of the test that the variations in temperature of windshield device is investigated.
Fig. 9 is that Fig. 1 of expression other embodiments of the invention quite schemes.
Figure 10 represents that Fig. 4 of example quite schemed in the past.
The specific embodiment
Below, referring to figs. 1 through Fig. 8 one embodiment of the present of invention are described.At first, Fig. 2 represents the formation of main body 11 of the refrigerator of present embodiment.This refrigerator main body 11 by with in the body of thermal insulating box 12 by adiabatic spaced walls 12a, 12b, 12c between the upper and lower every, begin sequentially to be provided with refrigerating chamber 13, ice-making compartment 14, vegetable compartment 15, refrigerating chamber 16 from last lattice.At this moment, above-mentioned ice-making compartment 14 is provided with side by side with switching about chamber 17 (with reference to Fig. 3).This switching chamber 17 constitutes, and by the changeable a plurality of temperature bands of user's operation, changeable is uses such as refrigerating chamber, part chamber, cool room, refrigerating chamber.In addition, Fig. 3 represents the section different with the position of Fig. 2 left and right directions.
The front face of above-mentioned refrigerating chamber 13 is provided with the door 18 of hinge open and close type, is respectively arranged with the door 19,20,21 of drawer type on the front face of ice-making compartment 14, vegetable compartment 15, refrigerating chamber 16.In the back side portion of above-mentioned door 19, be connected with ice container 22, in the back side portion of door 20,21, be connected with tank 23,24 respectively.In above-mentioned refrigerating chamber 13, be provided with the refrigerator temperature sensor 25 that is used to detect the temperature in this refrigerating chamber 13, in above-mentioned refrigerating chamber 16, be provided with the freezer temperature sensor 26 that is used to detect the temperature in this refrigerating chamber 16.And, in above-mentioned switching chamber 17, be provided with the switching room temperature sensor 27 (with reference to Fig. 6) that is used to detect the temperature in this switching chamber 17.
As shown in Figure 3, in the back wall portion of above-mentioned vegetable compartment 15,2 lattice are provided with refrigerating chamber overlappingly in front and back with cooler chamber 29 with cooler chamber 28 and refrigerating chamber.And, as shown in Figure 7, in above-mentioned refrigerating chamber is used cooler chamber 28, be provided with the refrigerating chamber cooler 30 and the refrigeration Air Blast fan 31 that are used to cool off above-mentioned refrigerating chamber 13 and vegetable compartment 15.And, in above-mentioned refrigerating chamber is used cooler chamber 29, be provided with the refrigerating chamber that is used to cool off refrigerating chamber 16, ice-making compartment 14 and switch chamber 17 cooler 32 and freezing with Air Blast fan 33 (with reference to Fig. 3).In addition, though there is not detailed diagram, refrigerating chamber is used Air Blast fan 31 and refrigerating chamber cooler 32 and freezing with Air Blast fan 33, on the position of staggering about being arranged on cooler 30 with refrigerating.And, with in the cooler 32, add being provided with defrosting heater 34 (only in Fig. 6, illustrating) at above-mentioned refrigerating chamber.
Thus, as shown in Figure 2, when driving above-mentioned refrigeration with Air Blast fan 31, carry out following circulation by refrigerating chamber with the cold air that cooler 30 produces, promptly pass through air supply duct 35 with the top of cooler chamber 28, supply in the refrigerating chamber 13 from a plurality of blow-off outlets from refrigerating chamber, and, after in supplying with vegetable compartment 15, return the bottom of refrigerating chamber with cooler chamber 28.Like this, be cooled to for example 3 ℃～5 ℃ refrigerated storage temperature band in refrigerating chamber 13 and the vegetable compartment 15.
And, as shown in Figure 3, above-mentioned freezing during when driving with Air Blast fan 33, carry out following circulation by refrigerating chamber with the cold air that cooler 32 produces, promptly pass through pipeline 36 with the top of cooler chamber 29, supply to ice-making compartment 14 (and switching chamber 17) from refrigerating chamber, and, after supplying with refrigerating chamber 16, return the bottom of refrigerating chamber with cooler chamber 29.Like this, refrigerating chamber 16 and ice-making compartment 14 for example are cooled to the cryogenic temperature band below-18 ℃.At this moment, in above-mentioned pipeline 36, be provided with the windshield device 37 that the cold air that is used for supplying with subtend switching chamber 17 is controlled (path that opens and closes pipeline 36).This windshield device 37 be will be explained below.
The freeze cycle 38 of in this refrigerator main body 11, packing into (with reference to Fig. 7).At this moment, as shown in Figure 2, rear side is provided with Machine Room 39 in the bottom of refrigerator main body 11, (with reference to Fig. 6, the Fig. 7) such as cooling fans 42 that is provided with compressor 40, condenser 41 and is used to cool off these in this Machine Room 39.
As shown in Figure 7, this freeze cycle 38 constitutes, sequentially with above-mentioned compressor 40, above-mentioned condenser (condenser) 41, by having the transfer valve 43 that 1 inlet 43a and the 1st and the 2nd triple valve that exports 43b and 43c constitute, the 1st capillary 44 that is connected with the 1st outlet 43b of this transfer valve 43, above-mentioned refrigerating chamber cooler 32, accumulator 45 and check-valves 46, connect into closed loop by the refrigerant pipe, and the 2nd outlet 43c at above-mentioned transfer valve 43, between the tie point of above-mentioned check-valves 46 and compressor 40, capillary 47 with the 2nd and above-mentioned refrigerating chamber cooler 30, be connected side by side with cooler 32 grades with refrigerating chamber by the refrigerant pipe.Above-mentioned transfer valve 43 is by being that the control device 48 (with reference to Fig. 6) that main body constitutes is controlled with the microcomputer.
Therefore, when above-mentioned transfer valve 43 is switched to the 1st outlet 43b side, after the driving refrigerant by compressor 40 passes through condenser 41, and supplying with refrigerating chamber with after the cooler 32 by the 1st capillary 44, order is passed through accumulator 45, check-valves 46, and returns compressor 40 (refrigerating chamber refrigerating mode).To this, when transfer valve 43 is switched to the 2nd outlet 43c side, after the driving refrigerant by compressor 40 passes through condenser 41, supply with refrigerating chambers with coolers 31 by the 2nd capillary 47, return compressor 40 (refrigerating chamber refrigerating mode).
Below, the formation of above-mentioned windshield device 37 is described.As shown in Figure 4, this windshield device 37 is following component unit to be turned to integratedly constitute: with above-mentioned pipeline 36 interval (obstruction) frame sections 49 for disposing up and down; The baffle plate 50 that the peristome 49a that is formed on the rectangle on this frame section 49 is opened and closed; Rotate the driving mechanism portion 51 of this baffle plate 50.Above-mentioned driving mechanism portion 51 constitutes, in the plastic shell 52 of slightly vertically long rectangular box shape, and pack into windscreen motor 53 and gear mechanism (not shown).And rotation drives rotating shaft 54, and this rotating shaft 54 is provided with highlightedly towards the bottom rearward end level of the medial surface 52a of pipeline 36 inboards from shell 52.In addition, the outside wall portions of shell 52 is provided with not shown connector, and windscreen motor 53 is connected with drive circuit.
Above-mentioned baffle plate 50 constitutes rectangular plate shape by synthetic resin, and is connected with above-mentioned rotating shaft 54.And the inner surface of this baffle plate 50 (lower surface) is provided with seal member 55, and sealing parts 55 are the sealed open 49a of portion periphery when having closed the peristome 49a of framework 49.Said frame portion 49 is formed in periphery (three parts) by synthetic resin and has the rectangular vessel shape that erects wall, and from the bottom of the medial surface 52a of the shell 52 of above-mentioned driving mechanism portion 51 direction horizontal-extending to the inside, be provided with integratedly with this shell 52.Above-mentioned peristome 49a forms rectangular-shaped at the central portion of the diapire of frame section 49.
The windshield device 37 of this blocking, as shown in Figure 3, above-mentioned driving mechanism portion 51 is embedded in the recess of the heat-insulating material that constitutes pipeline 36 wall portions and assembles.At this moment, the medial surface 52a of above-mentioned shell 52 is configured in pipeline 36.And above-mentioned windscreen motor 53 via the control of switching on of not shown drive circuit, makes baffle plate 50 on-off actions by above-mentioned control device 48 thus, controls thus from the circulation of the cold air of pipeline 36 in switching chamber 17.
In the present embodiment, as above-mentioned windscreen motor 53, employing can obtain the two-phase excitation type stepper motor of high torque (HT), fluent movements.Shown in Fig. 5 (a), this windscreen motor (stepper motor) 53, have as mechanical angle stagger 90 the degree A phase coil 56 and B phase coils 57, by to terminal A, the A ' of A phase coil 56 and terminal B, the B ' of B phase coil 57, apply pulse signal alternately with the pattern shown in Fig. 5 (b) and make its rotation.
At this moment, make baffle plate 50 from closing state under the situation of opening state action, switching on by the pattern of 1,2,3,3 order (order from left to right of Fig. 5 (b)) set by step, windscreen motor 53 carries out positive rotation (CW) thus.Switch on by the order opposite with it (order from right to left of Fig. 5 (b)), windscreen motor 53 carries out contrary rotation (CCW), and baffle plate 50 rotates to closing state from opening state.And behind the on-off action of this baffle plate 50, the energising of windscreen motor 53 is cut off, even but under this state, also can keep the open and-shut mode of baffle plate 50 by the electromagnetic system power of windscreen motor 53.
The electric formation that it is the refrigerator main body 11 at center that Fig. 6 roughly represents with above-mentioned control device 48.To the signal of these control device 48 inputs from above-mentioned refrigerator temperature sensor 25, freezer temperature sensor 26 and switching room temperature sensor 27, and input is from the signal of defrosting sensor 58, and input is from the signal of the external temperature sensor 59 that detects box outside temperature (environment temperature).In addition, as shown in Figure 7, above-mentioned defrosting sensor 58 is attached to refrigerating chamber with near the accumulator 45 the cooler 32.
And, this control device 48, according to the operation control program of storing in advance, and according to these input signals, control above-mentioned compressor 40, transfer valve 43, refrigeration Air Blast fan 31, freezing with Air Blast fan 33, cooling fan 42, Defrost heater 34 and windscreen motor 53 etc.
At this moment, control device 48, formation by this software, and by switching above-mentioned transfer valve 43, exchange ground switches refrigerating chamber refrigerating mode and refrigerating chamber refrigerating mode, and carries out the cooling operation, and, alternatively refrigerated compartment 13 (and vegetable compartment 15) and refrigerating chamber 16 (and ice-making compartment 14), and the temperature maintenance that each chamber 13～16 is interior is near design temperature.And control device 48 is for switching chamber 17 according to selected temperature band with switch the detected temperatures of room temperature sensor 27, control windshield device 37 (switching of the baffle plate 50 of windscreen motor 53), and with inner sustain at the design temperature band.
At this moment, control device 48 is respectively to refrigerating chamber 13 and refrigerating chamber 16, design temperature (target) is set the unlatching temperature of set point of temperature amplitude and turn-offed temperature, basically constitute, according to detected temperatures of above-mentioned refrigerator temperature sensor 25 and freezer temperature sensor 26 etc., come transfer valve 43 is switched.
Specifically, for example will open temperature for refrigerating chamber 13 and be set at 5 ℃, will turn-off temperature and be set at 2 ℃, for example will open temperature for refrigerating chamber 16 and be set at-18 ℃, will turn-off temperature and be set at-21 ℃.And, condition as switch mode is one of following situation: the detected temperatures of (1) chamber in cooling reaches when turn-offing temperature, (2) rise to when opening temperature in the detected temperatures of switching and chamber the non-cooling above through certain hour (for example 10 minutes) from the pattern of last time, (3) were when (for example 60 minutes) had been passed through the stipulated time in the pattern switching since last time.Detected temperatures both sides two chambers turn-off temperature when following, turn-off compressor 40 (stopping the cooling operation).
And, at this moment, above-mentioned refrigeration Air Blast fan 31, (refrigerating chamber refrigerating mode) is unlocked when refrigerating chamber flows into refrigerants with cooler 30, in addition when carrying out the refrigerating chamber refrigerating mode, also be unlocked, and the frosting (moistening operation) of cooler 30 of control refrigerating chamber.And, freezing with Air Blast fan 33, when flowing into refrigerant with cooler 32, refrigerating chamber is unlocked, in addition when carrying out the refrigerating chamber refrigerating mode, also be unlocked.By this control, even it is when carrying out the refrigerating chamber refrigerating mode, refrigerating chamber also is in enough low temperature with the surface temperature of cooler 32, therefore freezing with Air Blast fan 33 by driving, can supply with cold wind to refrigerating chamber 16 and ice-making compartment 14 (not shown ice-making disc), help the cooling of uniform temperature.Above-mentioned cooling fan 42 is opened when compressor 40 is driven.
And whenever the aggregate-value of time of implementation of refrigerating chamber refrigerating mode reaches the stipulated time (for example 10 hours), control device 48 is carried out Defrost operations.And, in the present embodiment, before Defrost operation, carry out pre-cold operation.This pre-cold operation carries out as follows, at first be transformed into low temperature side for example under 3 ℃ the state at design temperature with refrigerating chamber 16,14, with high revolution continuously drive compression machine 40 carry out the refrigerating chamber refrigerating mode, cool off refrigerating chamber 16 etc. forcibly, switch to the refrigerating chamber refrigerating mode afterwards and force refrigerated compartment 13.
Above-mentioned Defrost operation under the state that has stopped compressor 40 and each fan 31,33,42, undertaken by above-mentioned Defrost heater 34 is switched on, and the temperature that detects more than the set point of temperature (for example 8 ℃) based on defrosting sensor 58 finishes.In addition, when this Defrost operation, the baffle plate 50 of above-mentioned windshield device 37 is a closed state.And, as mentioned above, for refrigerating chamber cooler 30, owing to almost there is not frosting, therefore do not need to melt frost, but, heater and the defrosting sensor and the heating similarly of defrosting can be set also for this refrigerating chamber cooler 30 parts by special heating.
But, when above-mentioned Defrost operation, defrosting heater switched on carries out Defrost operation.In this Defrost operation melt with the frost on the cooler 32 because the heat by defrosting heater 34 can make attached to refrigerating chamber, therefore refrigerating chamber with in the cooler 29 with pipeline 36 in, be full of humid air than higher temperatures.And, after Defrost operation finishes, when the baffle plate 50 of open above-mentioned windshield device 37, partly become low temperature as the medial surface 52a of shell 52, then how wet air may contact and produce dewfall with this medial surface 52a to high temperature.
Therefore, in the present embodiment, as also illustrating in the Action Specification (process description) of back, above-mentioned control device 48, for the on-off action of the baffle plate 50 of above-mentioned windshield device 37 (to the control of the circulation of the cold air that switches chamber 17), control is to the energising of windscreen motor 53, in addition, beyond when the on-off action of above-mentioned baffle plate 50, the energising of following the spontaneous heating of the on-off action of this baffle plate 50 to use to above-mentioned windscreen motor 53.Therefore, control device 48 works as the energising control module.
More particularly, in the present embodiment, when carrying out the energising that spontaneous heating uses, every certain hour of crossing alternatively switches to the energising of the A of windscreen motor 53 phase coil 56 with to the energising of B phase coil 57.At this moment, with make the identical "on" position of the last powered-on mode of last time during baffle plate 50 on-off actions under, can be to terminal A, the A ' of A phase coil 56 and terminal B, B ' the stream direct current of B phase coil 57.For example, the last "on" position when having carried out last time baffle plate 50 sealing action be that to 56 energisings of A phase coil, making terminal A is "-" for "+", terminal A ' under the situation of the rightest pattern of Fig. 5 (b).57 energisings make terminal B be "+" for "-", terminal B ' to the B phase coil.
And, in the present embodiment, as the moment of carrying out the energising that above-mentioned spontaneous heating uses, when pre-cold operation, begin energising that the spontaneous heating of above-mentioned windscreen motor 53 is used, and in Defrost operation, continue energising, after Defrost operation finishes, when returning common cooling operation, the energising that end is used the spontaneous heating of windscreen motor 53, and return common on-off action control.
Below, the effect of above-mentioned formation is described.That the flowcharting control device 48 of Fig. 1 is carried out, with the treatment step of the control relevant portion of the energising that the spontaneous heating of above-mentioned windscreen motor 53 is used.Promptly, at first, in step S1, judge whether pre-cold operation begins.When pre-cold operation begins (being among the step S1), in next step S2, begin the energising that the spontaneous heating of the coil 56,57 of windscreen motor 53 is used.This is switched on as mentioned above, and every certain hour of crossing is alternately repeatedly to 56 energisings of A phase coil with to 57 energisings of B coil.
When the cumulative time that begins from pre-cold operation is passed through certain hour, finish pre-cold operation (step S3).So, open defrosting heater 34 specifically, and the baffle plate 50 of sealing windshield device 37, beginning Defrost operation (step S4).Even when this Defrost operation, also continue to carry out the energising that the spontaneous heating of above-mentioned windscreen motor 53 is used.
In next step S5, judge whether the time that finishes into Defrost operation.At this moment, when defrosting sensor 58 detects temperature more than the set point of temperature (for example 8 ℃), being judged as defrosting finishes, even but defrosting sensor 58 does not also detect set point of temperature (for example 8 ℃), under the situation that has begun to pass through certain hour (for example 20 minutes) from Defrost operation, also force to finish.
When being judged as Defrost operation when finishing (being among the step S5), in step S6, turn-off defrosting heater 34.In next step S7, at elapsed time T1 (for example 6 minutes) afterwards, open compressor 40.Begin T1 time delay by the operation that makes compressor 40, make the pressure balance of each cooler 30,32 become good.Then, in step S8, passing through time T 2 (for example 4 minutes) afterwards, it is freezing with Air Blast fan 33 to drive (just changeing), and, in step S9, reverse freezing afterwards having passed through time T 3 (for example 1 minute) with Air Blast fan 33.Thus, because the warm air that defrosting produces does not rest on pipeline 36 parts flows (bottom of windshield device 37).
And, in step S10, at elapsed time T4 (for example 2 minutes) afterwards, be transformed into common cooling operation.At this moment, finish energising that the spontaneous heating of windscreen motor 53 is used, carry out the open and close controlling of common windshield device 37.And freezing rotation with Air Blast fan 33 is just returned and is changeed.
By above-mentioned control, to the energising that windscreen motor 53 follows the spontaneous heating of the on-off action of baffle plate 50 to use, coil 56,57 heatings of windscreen motor 53.By this heating, the motor frame that can improve windscreen motor 53 with and the temperature of peripheral part, can make windshield device 37 be difficult to take place dewfall.At this moment, by the energising of when windshield device 37 parts are easy to generate the Defrost operation of dewfall, carrying out the spontaneous heating of windscreen motor 53 is used, in the time of can effectively preventing Defrost operation and the generation of dewfall thereafter.And, when pre-cold operation, begin energising that the spontaneous heating of windscreen motor 53 is used, therefore in the moment of beginning Defrost operation, can be in advance the temperature of peripheral part of windscreen motor 53 be improved, become more effective.
In addition, Fig. 8 represents to have investigated when Defrost operation and the result of the test of the variations in temperature on the surface (medial surface 52a) of the shell 52 of the driving mechanism portion 51 of windshield device 37 afterwards.A represents to have carried out the variations in temperature under the situation of control (energising that spontaneous heating is used) of present embodiment among the figure, and b represents not carry out the variations in temperature in the past of the energising that spontaneous heating uses among the figure.And c represents the situation of the variations in temperature of (bottom of windshield device 37) in the pipeline 36 among the figure.
Be the temperature that the temperature of windshield device 37 is high as a comparison to realize preventing dewfall according to the also intelligible situation of this result of the test according to present embodiment.And, especially by the control of step S7～S9, postponed in the moment of open baffle 50, can further improve the effect that prevents dewfall.
So, according to present embodiment, in pipeline 36, be provided with the device of windshield device 37, when the on-off action of baffle plate 50 beyond, therefore energising to windscreen motor 53 does not follow the spontaneous heating of the on-off action of this baffle plate 50 to use can prevent the dewfall of windshield device 37 and freezing of baffle plate 50.At this moment, do not need additional other heater etc., the energising control by windscreen motor 53 can prevent dewfall and the generation of freezing, and use simple and cheap formation to get final product.
Particularly in the present embodiment, windscreen motor 53 is carried out the energising that spontaneous heating is used, therefore can prevent the generation of dewfall effectively, and can realize power saving in the most effective moment.And, particularly constitute in the present embodiment, when carrying out the energising that spontaneous heating uses, alternatively switching to the energising of the A of this windscreen motor 53 phase coil 56 with between the energising of B phase coil 57, the coil (reducing the life-span) that therefore can not only consume a phase gets final product, and can suppress the reduction in the life-span of coil 56,57.
The flowcharting of Fig. 9 other embodiment of the present invention.This embodiment and the foregoing description difference be, carried out the moment of the energising that spontaneous heating uses by the 48 pairs of windscreen motors of control device 53 as the energising control module and control.Herein, control device 48 carries out the energising that spontaneous heating is used according to from the signal of the outer temperature degree sensor 59 that detects box outside temperature and the design temperature band of switching chamber 17 to windscreen motor 53.In addition, certainly windshield device 37 is carried out common control (open and close controlling of baffle plate 50).
Promptly, at first in step S21, judge whether outer temperature degree sensor 59 detects below the set point of temperature (for example 10 ℃).Temperature degree sensor 59 detects set point of temperature when following (being among the step S21) outside, in next step S22, judges that the setting of switching chamber 17 is whether beyond the freezer temperature band.Switch chamber 17 be set at beyond the freezer temperature band time (being among the step S22), in step S23, windscreen motor 53 is carried out the energising that spontaneous heating is used.
Afterwards, in step S24, whether the detected temperatures that monitors outer temperature degree sensor 59 is below set point of temperature (for example 10 ℃), when the temperature that detects above set point of temperature (among the step S24 not), in step S25, stop the energising that the spontaneous heating of windscreen motor 53 is used.Afterwards, repeat the processing that begins from step S21.
, be set under the situation of freezer temperature band in switching chamber 17,50 mosts of the time of baffle plate of windshield device 37 are in open state, and become the state of the cold air that always circulates in the pipeline 36, so shell 52 is difficult to produce dewfall herein.To this, switching under the situation that chamber 17 is set at the higher temperature band of refrigerating chamber, cool room geometric ratio, the 50 pent times of baffle plate become many, at this moment, near cold air (windshield device 37) in pipeline 36 is stagnated, and therefore has the situation of easy dewfall when baffle plate 50 is opened.And, during winter that temperature is low outside case etc., there is windshield device 37 low temperature more that becomes easily, be easy to generate the situation of the dewfall of shell 52.
Therefore, as present embodiment by constituting: switch that chamber 17 is set at beyond the freezer temperature band and outside temperature degree sensor detect set point of temperature when following, windscreen motor 53 is carried out the energising that spontaneous heating is used, can suppress windshield device 37 thus and become low temperature, and can effectively prevent the generation of the dewfall of windshield device 37.Compare with often carrying out the energising that 53 execution spontaneous heatings are used to the windscreen motor, can realize power saving, and, do not need additional other heater etc., use simple and cheap formation to get final product.
In addition, omitted diagram, but the present invention can change as follows and implement.At first, as the moment of windscreen motor 53 being carried out the energising that spontaneous heating uses, can carry out following several distortion.Promptly, at the device of the fault detection unit that is provided with the fault that is used for detecting defrosting sensor 58, also can constitute, when detecting the fault of defrosting sensor 58 by fault detection unit, often windscreen motor 53 is carried out the energising that spontaneous heating is used.Thus, when defrosting sensor 58 faults, can reliably prevent the generation of the dewfall of windshield device 37.
Perhaps, also can constitute, under the open state of the baffle plate 50 of windshield device 37, carry out the energising that the spontaneous heating of windscreen motor 53 is used continuously or intermittently.Thus, by in the windshield device 37 easily during the part of dewfall, can make 53 heatings of windscreen motor, and the part that can suppress to take place easily dewfall becomes low temperature, improve the effect that prevents dewfall at the open cold airflows of baffle plate 50.
And after the power supply of connecting refrigerator, the temperature in each storeroom 13～17 is than higher, and therefore the low temperature that is cooled to rapidly to a certain degree is important.And, during this precooling in, the temperature of windshield device 37 parts is also than higher, the possibility that therefore dewfall takes place is little, does not need to carry out the energising that spontaneous heating is used.
During so-called this precooling, specifically can judge according to following arbitrary condition: after connecting power supply through the stipulated time (for example 150 minutes) before; Or before the circulation of the refrigerating chamber refrigerating mode of having carried out stipulated number (for example 3 times) and refrigerating chamber refrigerating mode; Or become set point of temperature (for example-20 ℃) before with cooler 32 at refrigerating chamber; Or become set point of temperature (for example-10 ℃) in the refrigerating chamber 13 (perhaps ice-making compartment 14) before.
Therefore, can constitute: after connecting power supply, judge during the precooling till temperature in the storeroom 13～17 is reduced to below the set point of temperature in, forbid the energising that the spontaneous heating of windscreen motor 53 is used.Thus, can not take place under the state of dewfall, can realize power saving by forbidding energising.
And also can constitute: as the pattern of windscreen motor 53 being carried out the energising that spontaneous heating uses, under the closed condition of baffle plate 50, the pattern when carrying out the closing motion of this baffle plate 50 is switched on to two phase coils 56,57; Under the open state of baffle plate 50, the pattern when carrying out the opening operation of this baffle plate 50 is switched on to two phase coils 56,57.Thus, attainable purpose, and can eliminate along with the switching of baffle plate 50 repeatedly and the difference of the stepping that produces the effect that can obtain stepping up.
In addition, the present invention is not limited to the various embodiments described above, can carry out suitable change in the scope that does not break away from spirit of the present invention: the formation of each chamber in the refrigerator main body (configuration) and the formation of the position etc. of 2 coolers is set for example, all can carry out various changes.And the windshield device of circulation that control is switched the cold air of chamber is illustrated, but the present invention for example can be applicable to also that in the refrigerator that possesses 1 cooler, control is on the windshield device of the circulation of the cold air of refrigerating chamber.And, when carrying out the control of circulation of cold air respectively for 2 storerooms, 2 windshield devices can be set, but also these 2 windshield devices can be constituted as ground, 1 unit.And, as concrete numerical value such as above-mentioned design temperature and times, only represent an example, can carry out suitable change etc.
Claims (9)
1. refrigerator, in the pipeline that storeroom is carried, have the windshield device that as drive source baffle plate is opened and closed in the windscreen motor at the cold air that will generate, and make baffle plate carry out the circulation that on-off action is controlled cold air by energising control to above-mentioned windscreen motor by cooler, it is characterized in that
The energising control module is set, when the on-off action of above-mentioned baffle plate beyond, above-mentioned windscreen motor is carried out the energising that spontaneous heating is used.
2. refrigerator as claimed in claim 1 is characterized in that,
Above-mentioned energising control module in the Defrost operation to above-mentioned cooler, carries out the energising that spontaneous heating is used to above-mentioned windscreen motor.
3. refrigerator as claimed in claim 2 is characterized in that,
Above-mentioned energising control module during the pre-cold operation that carries out, begins the energising that the spontaneous heating of above-mentioned windscreen motor is used before above-mentioned Defrost operation.
4. as claim 2 or 3 described refrigerators, it is characterized in that,
Defrosting sensor when possessing the end that is used to judge above-mentioned Defrost operation, and possess the fault detection unit of the fault that detects this defrosting sensor,
Above-mentioned energising control module when detecting the fault of defrosting sensor by above-mentioned fault detection unit, often carries out the energising that the spontaneous heating of above-mentioned windscreen motor is used.
5. refrigerator as claimed in claim 1 is characterized in that,
Above-mentioned energising control module under the open state of above-mentioned baffle plate, carries out the energising that the spontaneous heating of above-mentioned windscreen motor is used.
6. refrigerator as claimed in claim 1 is characterized in that,
The outer temperature degree sensor that possesses the outer temperature of detection case,
Above-mentioned energising control module, temperature degree sensor detects set point of temperature when following outside above-mentioned, carries out the energising that the spontaneous heating of above-mentioned windscreen motor is used.
7. refrigerator as claimed in claim 1 is characterized in that,
Above-mentioned energising control module, after connecting power supply, be judged as between temperature in the above-mentioned storeroom decrement phase before being reduced to below the set point of temperature in, forbid the energising that the spontaneous heating of above-mentioned windscreen motor is used.
8. refrigerator as claimed in claim 1 is characterized in that,
Above-mentioned windscreen motor is made of the stepper motor of the two-phase excitation type of the coil of the two-phase that possesses A phase, B phase,
Above-mentioned energising control module when carrying out the energising that spontaneous heating uses, alternatively switches to the energising of a coil of above-mentioned windscreen motor with to the energising of another coil.
9. refrigerator as claimed in claim 1 is characterized in that,
Above-mentioned windscreen motor is made of the stepper motor of the two-phase excitation type of the coil of the two-phase that possesses A phase, B phase,
Above-mentioned energising control module, under the closed condition of above-mentioned baffle plate, pattern when carrying out the closing motion of this baffle plate is carried out the energising to the coil of above-mentioned two-phase, under the open state of above-mentioned baffle plate, the pattern when carrying out the opening operation of this baffle plate is carried out the energising to the coil of this two-phase.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2006247563A JP2008070015A (en) | 2006-09-13 | 2006-09-13 | Refrigerator |
| JP247563/2006 | 2006-09-13 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101144671A CN101144671A (en) | 2008-03-19 |
| CN100578123C true CN100578123C (en) | 2010-01-06 |
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ID=39207321
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200710112052A Expired - Fee Related CN100578123C (en) | 2006-09-13 | 2007-06-22 | Refrigerator |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP2008070015A (en) |
| CN (1) | CN100578123C (en) |
| SG (1) | SG141364A1 (en) |
| TW (1) | TW200813381A (en) |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5639811B2 (en) * | 2010-07-30 | 2014-12-10 | 日立アプライアンス株式会社 | refrigerator |
| JP2012042133A (en) * | 2010-08-19 | 2012-03-01 | Toshiba Corp | Refrigerator |
| JP2013088074A (en) * | 2011-10-20 | 2013-05-13 | Panasonic Corp | Air conditioner |
| JP2013113526A (en) * | 2011-11-30 | 2013-06-10 | Toshiba Corp | Refrigerator |
| JP5818701B2 (en) * | 2012-01-20 | 2015-11-18 | 三菱電機株式会社 | Ventilation equipment |
| JP6143458B2 (en) * | 2012-12-28 | 2017-06-07 | 東芝ライフスタイル株式会社 | refrigerator |
| JP6048549B1 (en) * | 2015-08-07 | 2016-12-21 | ダイキン工業株式会社 | Refrigeration equipment |
| JP6723499B2 (en) * | 2015-12-17 | 2020-07-15 | 青島海爾股▲フン▼有限公司 | refrigerator |
| CN105953500A (en) * | 2016-05-23 | 2016-09-21 | 广州美的华凌冰箱有限公司 | Refrigerator control method, control device and refrigerator |
| JP2018109499A (en) * | 2016-12-28 | 2018-07-12 | パナソニックＩｐマネジメント株式会社 | refrigerator |
| WO2018123529A1 (en) * | 2016-12-28 | 2018-07-05 | パナソニックＩｐマネジメント株式会社 | Refrigerator |
| CN106970796A (en) * | 2017-03-29 | 2017-07-21 | 四川长虹电器股份有限公司 | refrigerator main control software design method based on state machine |
| CN111795539A (en) * | 2020-08-03 | 2020-10-20 | 佛山通宝华通控制器有限公司 | Method for controlling heating and anti-frosting of electric air door device of refrigerator |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6380176A (en) * | 1986-09-24 | 1988-04-11 | 株式会社三協精機製作所 | Starting ensuring method of motor |
| JPH0719709A (en) * | 1993-06-29 | 1995-01-20 | Sanyo Electric Co Ltd | Refrigerator |
| JP3351935B2 (en) * | 1995-09-21 | 2002-12-03 | シャープ株式会社 | Electric refrigerator |
| JPH09140193A (en) * | 1995-11-17 | 1997-05-27 | Denso Corp | Driver for stepping motor and indicating instrument |
| JPH10205957A (en) * | 1997-01-23 | 1998-08-04 | Toshiba Corp | Refrigerator |
| JP3912233B2 (en) * | 2002-09-06 | 2007-05-09 | 三菱電機株式会社 | Refrigerator, how to operate the refrigerator |
| JP2005030606A (en) * | 2003-07-07 | 2005-02-03 | Hitachi Home & Life Solutions Inc | Refrigerator |
-
2006
- 2006-09-13 JP JP2006247563A patent/JP2008070015A/en active Pending
-
2007
- 2007-05-08 TW TW096116314A patent/TW200813381A/en not_active IP Right Cessation
- 2007-06-22 CN CN200710112052A patent/CN100578123C/en not_active Expired - Fee Related
- 2007-09-11 SG SG200708401-5A patent/SG141364A1/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| CN101144671A (en) | 2008-03-19 |
| TWI331203B (en) | 2010-10-01 |
| SG141364A1 (en) | 2008-04-28 |
| TW200813381A (en) | 2008-03-16 |
| JP2008070015A (en) | 2008-03-27 |
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Address after: Tokyo, Japan Patentee after: Toshiba Corp. Patentee after: Toshiba Home Appliances Holdings Corp. Patentee after: TOSHIBA HOME APPLIANCES Corp. Address before: Tokyo, Japan Patentee before: Toshiba Corp. Patentee before: Toshiba Consumer Marketing Corp. Patentee before: Toshiba Kaden Seizo Kabushiki Kaisha Address after: Tokyo, Japan Patentee after: Toshiba Corp. Patentee after: Toshiba Home Appliances Holdings Corp. Patentee after: TOSHIBA LIFESTYLE PRODUCTS & SERVICES Corp. Address before: Tokyo, Japan Patentee before: Toshiba Corp. Patentee before: Toshiba Home Appliances Holdings Corp. Patentee before: TOSHIBA HOME APPLIANCES Corp. |
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