CN1311217C

CN1311217C - Refrigerator

Info

Publication number: CN1311217C
Application number: CNB2005100067182A
Authority: CN
Inventors: 仁木茂; 堀江宗弘; 小林正幸
Original assignee: Toshiba Corp; Toshiba Consumer Marketing Corp; Toshiba Home Appliances Corp
Current assignee: Toshiba Corp; Toshiba Consumer Marketing Corp; Toshiba Lifestyle Products and Services Corp
Priority date: 2004-01-30
Filing date: 2005-01-31
Publication date: 2007-04-18
Anticipated expiration: 2025-01-31
Also published as: TW200530542A; KR20050078203A; JP2005214544A; TWI306935B; CN1648583A; KR100597493B1

Abstract

In this two chamber independent cooling method having a freezing cycle for alternately applying a chillroom cooling mode and a freezer cooling mode, a chillroom 10 and the vegetable chamber 14 are vertically mounted, the cooled cold air is circulated in the chillroom through a chillroom cooling evaporator 23 by forward rotation of a blower 24 to cool the chillroom in the chillroom cooling mode, the cold air is sucked out from a cold air circulation return port at a lower rear part of the chillroom to be recirculated, and the vegetable chamber 13 is indirectly cooled from a ceiling face composed of a partition 13 from the chillroom 10, the air blower for cooling the chillroom is rotated backward for a predetermined time regardless of transferring to the freezer cooling mode and a cooling stop mode by the stop of a compressor, after the termination of the chillroom cooling mode. The invention is aimed to effectively cool a vegetable chamber in a two-chamber independent cooling type freezer/refrigerator having a vegetable chamber indirect cooling structure.

Description

Refrigerator

Technical field

The present invention relates to the refrigerator of the two Room independence types of cooling.

Background technology

Have: compressor, condenser, refrigerating chamber evaporator for cooling and pressure fan, refrigerating chamber evaporator for cooling and pressure fan, utilize transfer valve that cold-producing medium is circulated in refrigerating chamber evaporator for cooling or refrigerating chamber evaporator for cooling, have by switching the kind of refrigeration cycle that transfer valve alternately carries out refrigerating chamber refrigerating mode and refrigerating chamber refrigerating mode, in the refrigerator of the structure that refrigerating chamber and vegetable compartment are configured up and down, making the occasion that directly cold air is blown into the structure of vegetable compartment, for the drying that prevents vegetables wherein need be provided with lid with the good structure of leak tightness on the top of the vegetable compartment container in this vegetable compartment, there is the structure complicated problems that becomes.

Again, in the refrigerator of said structure, making the occasion that directly cold air is not blown into the structure of vegetable compartment, the structure good with leak tightness forms pipeline on vegetable compartment top, make the structure that makes vegetable compartment and refrigerating chamber separation and, require further to improve the cooling effectiveness of vegetable compartment with the good member of the such heat transfer coefficient of coldplate for the structure that makes the vegetable compartment cooling indirectly.

[patent documentation 1] Japan Patent spy opens the 2002-243334 communique

[patent documentation 2] Japan Patent spy opens the 2003-287349 communique

Summary of the invention

The present invention, in view of above-mentioned technical problem in the past makes, its purpose is, for having: compressor, condenser, refrigerating chamber evaporator for cooling and pressure fan, refrigerating chamber evaporator for cooling and pressure fan, utilize transfer valve that cold-producing medium is circulated in described refrigerating chamber evaporator for cooling or refrigerating chamber evaporator for cooling, have by switching the kind of refrigeration cycle that transfer valve alternately carries out refrigerating chamber refrigerating mode and refrigerating chamber refrigerating mode, the refrigerator of the structure that refrigerating chamber and vegetable compartment are configured up and down provides the refrigerator that can carry out the cooling of vegetable compartment efficiently.

The refrigerator of the invention of technical scheme 1, have: compressor, condenser, refrigerating chamber evaporator for cooling and pressure fan, refrigerating chamber evaporator for cooling and pressure fan, utilize transfer valve that cold-producing medium is circulated in described refrigerating chamber evaporator for cooling or refrigerating chamber evaporator for cooling, have by switching the kind of refrigeration cycle that described transfer valve alternately carries out refrigerating chamber refrigerating mode and refrigerating chamber refrigerating mode, refrigerating chamber is disposed up and down with vegetable compartment and separate mutually by demarcation strip, described demarcation strip constitutes the end face of described vegetable compartment, in the refrigerating chamber refrigerating mode, make because thereby the cooling of described refrigerating chamber circulates in described refrigerating chamber with the cold air that the part by described refrigerating chamber evaporator for cooling is cooled of just transferring of pressure fan, from the circulating cold air return port at rear, refrigerating chamber bottom to described refrigerating chamber evaporator for cooling with the cold air sucking-off and recycle, described vegetable compartment is cooled off indirectly by described demarcation strip, it is characterized in that having after described refrigerating chamber refrigerating mode finishes, although wantonly 1 pattern in the cooling stop mode that changes the refrigerating chamber refrigerating mode over to or stop to cause by compressor, the controller that described refrigerating chamber cooling is reversed with the stipulated time with pressure fan.

The invention of technical scheme 2, be in technical scheme 1 described refrigerator, it is characterized in that, has the ambient temp sensor that the environment temperature to described refrigerator detects, described controller is controlled with the reversing time of pressure fan described refrigerating chamber cooling changeably according to the detected refrigerator environment temperature of described ambient temp sensor.

The invention of technical scheme 3, be in technical scheme 1 described refrigerator, it is characterized in that, has the ambient temp sensor that the environment temperature to described refrigerator detects, described controller is controlled with the counter-rotating rotating speed of pressure fan described refrigerating chamber cooling changeably according to the detected refrigerator environment temperature of described ambient temp sensor.

The refrigerator of the invention of technical scheme 4, have: compressor, condenser, refrigerating chamber evaporator for cooling and pressure fan, refrigerating chamber evaporator for cooling and pressure fan, utilize transfer valve that cold-producing medium is circulated in described refrigerating chamber evaporator for cooling or refrigerating chamber evaporator for cooling, have by switching the kind of refrigeration cycle that described transfer valve alternately carries out refrigerating chamber refrigerating mode and refrigerating chamber refrigerating mode, refrigerating chamber is disposed up and down with vegetable compartment and separate mutually by demarcation strip, described demarcation strip constitutes the end face of described vegetable compartment, in the refrigerating chamber refrigerating mode, make because thereby the cooling of described refrigerating chamber circulates in described refrigerating chamber with the cold air that the part by described refrigerating chamber evaporator for cooling is cooled of just transferring of pressure fan, from the circulating cold air return port at rear, refrigerating chamber bottom to described refrigerating chamber evaporator for cooling with the cold air sucking-off and recycle, described vegetable compartment is cooled off indirectly by described demarcation strip, it is characterized in that having after described refrigerating chamber refrigerating mode finishes, under the state that described transfer valve was remained on the stipulated time on the refrigerating chamber cool position, continue the running of described compressor, and the controller that described refrigerating chamber cooling is reversed with pressure fan.

The invention of technical scheme 5, be in technical scheme 1 or technical scheme 4 described refrigerators, it is characterized in that, have refrigerator temperature sensor and freezer temperature sensor, and the memory of the detected temperatures of the described refrigerator temperature sensor of storage, described controller, has the function of the rotating speed of described compressor being controlled according to described temperature of refrigerating chamber and freezer temperature, and, have that the detected temperatures according to described refrigerator temperature sensor stops the control of described compressor in the cooling of described refrigerating chamber is turned round with the counter-rotating of pressure fan, when counter-rotating running finishes according to this counter-rotating function that detected temperatures when being about to begin carries out the control of described compressor once more that turns round.

The invention of technical scheme 6, be in technical scheme 1 or technical scheme 4 described refrigerators, it is characterized in that, have refrigerator temperature sensor and freezer temperature sensor, carry out the temperature temperature displayed display of described refrigerating chamber, and the memory of the detected temperatures of the described refrigerator temperature sensor of storage, described controller, have according to the detected temperatures of described refrigerator temperature sensor the refrigeration indoor temperature is calculated, and the function that on described temperature indicator, shows, and, have that the detected temperatures according to described refrigerator temperature sensor stops temperature computation in the cooling of described refrigerating chamber is turned round with the counter-rotating of pressure fan, when the end of counter-rotating running according to this counter-rotating function that detected temperatures when being about to begin carries out the calculating of described refrigeration indoor temperature once more that turns round.

The invention of technical scheme 7, be in technical scheme 1 or technical scheme 4 described refrigerators, it is characterized in that, be provided with the peristome that makes this air supply duct be communicated with usefulness with described vegetable compartment in the part that refrigerating chamber and vegetable compartment are separated that forms the radiator grille that air supply duct uses, described air supply duct is provided in the front face side of described refrigerating chamber usefulness evaporimeter.

The invention of technical scheme 8, be in technical scheme 1 or technical scheme 4 described refrigerators, it is characterized in that, has the vegetable compartment temperature sensor that the temperature to described vegetable compartment detects, described controller is controlled with the counter-rotating of pressure fan changeably to described refrigerating chamber cooling according to described vegetable compartment temperature the duration of runs.

Adopt the present invention, because after the refrigerating chamber refrigerating mode finishes, although wantonly 1 pattern of the cooling stop mode that changes the refrigerating chamber refrigerating mode over to or stop to cause by compressor, described refrigerating chamber cooling is reversed with the stipulated time with pressure fan, so flowing through refrigerating chamber blows attached state with the part of evaporimeter by the end face that the cooled cold air of low temperature exhaust heat makes at first to vegetable compartment, can carry out the cooling of vegetable compartment effectively.

Again, adopt the present invention, control changeably with the reversing time of pressure fan by refrigerating chamber is cooled off, can more effectively carry out the cooling of vegetable compartment according to the refrigerator environment temperature.

Again, adopt the present invention, control changeably with the counter-rotating rotating speed of pressure fan by refrigerating chamber is cooled off, can more effectively carry out the cooling of vegetable compartment according to the refrigerator environment temperature.

Again, adopt the present invention, owing to finish the back at described refrigerating chamber refrigerating mode, under the state that transfer valve was remained on the stipulated time on the refrigerating chamber cool position, continue the running of compressor and the refrigerating chamber cooling reversed with pressure fan, so the end face that the cold air after the refrigerating chamber by will flowing through flow of refrigerant is cooled with the part of evaporimeter makes at first to vegetable compartment blows attached state, can carry out the cooling of vegetable compartment effectively.

Again, adopt the present invention, since controller refrigerating chamber cooling with the counter-rotating running of pressure fan in according to the detected temperatures of refrigerator temperature sensor make that the control of compressor stops, the detected temperatures that turning round when being about to begin according to this counter-rotating during end in the counter-rotating running carries out the control of compressor once more, so can cool off vegetable compartment effectively, and can prevent to cause that because of the counter-rotating that refrigerating chamber cools off with pressure fan the refrigeration indoor temperature changes terrifically.

Again, adopt the present invention, because controller detected temperatures according to refrigerator temperature sensor in the refrigerating chamber cooling is turned round with the counter-rotating of pressure fan stops temperature computation, when finishing, counter-rotating running refrigerates the calculating of indoor temperature once more according to turn round detected temperatures when being about to begin of this counter-rotating, so can cool off vegetable compartment effectively, even and cause that with the cold air flow in the counter-rotating running of pressure fan the disorder of refrigeration indoor temperature also can prevent the temperature demonstration that temperature indicator extremely changes because of the refrigerating chamber cooling.

Again, adopt the present invention, owing to be provided with the peristome that makes this air supply duct be communicated with usefulness with vegetable compartment in the part that refrigerating chamber and vegetable compartment are separated that forms the radiator grille that air supply duct uses, described air supply duct is provided in the front face side of refrigerating chamber with evaporimeter, so can only in the counter-rotating running of refrigerating chamber cooling, cold air be sent into to vegetable compartment, can more effectively cool off to vegetable compartment with pressure fan.

In addition, adopt the present invention, control changeably the duration of runs with the counter-rotating of pressure fan because controller cools off refrigerating chamber according to the vegetable compartment temperature, so except cooling off vegetable compartment effectively, the vegetable compartment temperature can be cooled to thermophilic.

Description of drawings

Fig. 1 is the longitudinal section of the refrigerator of the invention process form 1.

Fig. 2 is the system diagram of the kind of refrigeration cycle of example 1.

Fig. 3 is the flow chart that the vegetable compartment (V chamber) of example 1 is forced cooling running control.

Fig. 4 is the correspondence table that the rotating speed of duration of runs of cooling running control and R chamber pressure fan is forced in the V chamber of expression example 1.

Fig. 5 is the time diagram that cooling running control is forced in the V chamber of example 1.

Fig. 6 is the cutaway view that the R chamber circulating cold air when turning round is forced to cool off in the V chamber of expression example 1.

Fig. 7 is the flow chart that cooling running control is forced in the V chamber of the invention process form 2.

Fig. 8 be the V chamber of expression example 2 force cooling running control the duration of runs and the correspondence table of R chamber pressure fan rotating speed.

Fig. 9 is the time diagram that cooling running control is forced in the V chamber of example 2.

Figure 10 is the longitudinal section of the refrigerator of the invention process form 3.

Figure 11 is the stereogram of the R chamber radiator grille of example 3.

The curve map (being situation) of the PID control of the compressor rotary speed when Figure 12 is the counter-rotating running of expression R chamber pressure fan in R chamber cooling also carrying out when stopping PID control.

Figure 13 is the flow chart that cooling running control is forced in the V chamber of the invention process form 4.

The curve map (being situation) of the PID control of the compressor rotary speed when Figure 14 is the counter-rotating running of expression R chamber pressure fan in R chamber cooling stopping when stopping PID control.

The curve map (being the situation of proceeding temperature computation in the cooling of R chamber when stopping) of the R chamber displays temperature when Figure 15 is the counter-rotating running of expression R chamber pressure fan.

Figure 16 is the flow chart that cooling running control is forced in the V chamber of the invention process form 5.

The curve map (being the situation that stops temperature computation in the cooling of R chamber when stopping) of the R chamber displays temperature when Figure 17 is the counter-rotating running of expression R chamber pressure fan.

Figure 18 is the longitudinal section of the refrigerator of the invention process form 6.

The specific embodiment

Below, with reference to accompanying drawing the invention process form is at length described.Fig. 1 is the cutaway view of the refrigerator of the invention process form 1, is provided with compressor 3, main substrate 4, control substrate 5 in the Machine Room 2 at the back, bottom of refrigerator body 1.The inner utilization next door 12 of refrigerator body 1 is divided into the refrigerating chamber (F chamber) 11 of refrigerating chamber (the R chamber) 10 and the bottom on top.In addition, the bottom of R chamber 10 utilizes demarcation strip 13 to separate, and forms vegetable compartment (V chamber) 14 in its underpart.

The place ahead in the back wall of refrigerator body 1 is left the compartment of terrain, is provided with R chamber radiator grille 15 at the back of R chamber 10 sides to form R chamber pipeline 16, again, is provided with F chamber radiator grille 17 at the back of F chamber 11 sides to form F chamber pipeline 18.The bottom of R chamber radiator grille 15 rearward is bent into the L font, and this bending part 19 is isolated the R chamber 10 of vegetable compartment (V chamber) 14 with its top with the demarcation strip 13 in its place ahead.

The kind of refrigeration cycle of the refrigerator of this example of expression among Fig. 2.This kind of refrigeration cycle has: compressor 3, condenser 21; Refrigerating chamber capillary (R chamber capillary) 22, refrigerating chamber evaporator for cooling (R chamber evaporimeter) 23 and R chamber pressure fan 24, refrigerating chamber capillary (F chamber capillary) 25; Refrigerating chamber evaporator for cooling (F chamber evaporimeter) 26 and F chamber pressure fan 27 and storage tank 28, by compressor 3 being rotated and switch three-way valve, being that transfer valve 29 circulates cold-producing medium in R chamber evaporimeter 23 or F chamber evaporimeter 26, alternately carry out refrigerating chamber cooling (R pattern) and refrigerating chamber and cool off (F pattern).The R chamber evaporimeter 23 of above-mentioned kind of refrigeration cycle, R chamber pressure fan 24 are arranged in the R chamber pipeline 16, and F chamber evaporimeter 26, F chamber pressure fan 27 are arranged in the F chamber pipeline 18.

In addition, main substrate 4 and control substrate 5 are set in Machine Room 2, this main substrate 4 makes the structure based on power circuit in the space that isolates with compressor 3, and this control substrate 5 has the microcomputer as the controller of each equipment.On R chamber door 30, be installed with and be used to inform the state of temperature of R chamber, F chamber and the display board 32 that operating condition is used again.

The suitable position of refrigerator body 1, be not subjected to the ground of temperature effect in the refrigerator externally the temperature degree carry out the place of instrumentation, temperature sensor 35 is installed, and R room temperature sensor 36, F room temperature sensor 37 are set in each chamber for the temperature that detects R chamber 10, F chamber 11 respectively, evaporator sensor 38 also is installed, and distribution becomes the state that these temperature detection signals are sent to control substrate 5.

In the refrigerator of above structure, in the refrigerating mode of R chamber, refrigerant flow path is switched to the state of cold-producing medium to R chamber evaporimeter 23 side flow that make by transfer valve 29, by make cold-producing medium to R chamber evaporimeter 23 circulation and make R chamber pressure fan 24 to common direction be rotated (just changeing) make cold air after the part that flows through R chamber evaporimeter 23 in R chamber pipeline 16 is cooled blow out in R chamber 10 from top and sidepiece, again by from the following back quadrate part of R chamber 10 to the circulating path that R chamber pipeline 16 sucks, in R chamber 10, make circulating cold air and with 10 coolings of R chamber.And for the cooling of vegetable compartment (V chamber) 14, the cold air that returns that the cold air that utilization circulates in R chamber 10 returns in R chamber pipeline 16 along demarcation strip 13 from the back quadrate part makes this demarcation strip 13 coolings, utilizes this cold air indirectly V chamber 14 to be cooled off from end face.This R chamber refrigerating mode, the temperature signal that detects according to R room temperature sensor 36, if the R room temperature of being calculated by control substrate 5 just stops below setting.

On the other hand, in the refrigerating mode of F chamber, refrigerant flow path is switched to the state of cold-producing medium to F chamber evaporimeter 26 side flow that make by transfer valve 29, by make cold-producing medium to F chamber evaporimeter 26 circulation and F chamber pressure fan 27 is rotated make cold air after the part that flows through F chamber evaporimeter 26 in F chamber pipeline 18 is cooled blow out in F chamber 11 from the back, again by from the bottom of F chamber 11 to the circulating path that F chamber pipeline 18 sucks, in F chamber 11, make circulating cold air and with 11 coolings of F chamber.This F chamber refrigerating mode, the temperature signal that detects according to F room temperature sensor 37, if the F room temperature that control substrate 5 calculates just stops below setting.

To utilizing the PID in these R chamber refrigerating modes, the F chamber refrigerating mode to control the rotating speed control of the compressor that carries out and show that for temperature in the refrigerator of display board 32 control describes.For the temperature inside the box with R chamber, F chamber makes necessarily, carry out PID for the change up and down of the temperature inside the box and calculate, calculate the rotating speed of required compressor.To this, for example,, calculate the speed of compressor 3 to carrying out following calculating formula in per 1 minute.

Fnew=Fold+0.06* (et-et _-1)+0.016et _-2[formula 1]

In the formula 1, Fnew is compressor frequency (a new value), and Fold is compressor frequency (value now).

Et=(Tr-Trmid) * 2+ (Tf-Tfmid) * 3 [formula 2]

In the formula 2, Tr is the detected temperatures of R room temperature sensor, and Trmid is a R chamber operating temperature median, and Tf is the detected temperatures of F room temperature sensor, and Tfmid is a F chamber operating temperature median.Again, et _-1Be the et before 1 minute, et _-2Be the et before 2 minutes ....

And, the initial stage pid value when cooling off once more, the speed that for example reduces 15Hz with the pid value when cooling finishes is started compressor 3.

Utilize carrying out of the temperature inside the box that display board 32 shows again, with being calculated as follows.For the R room temperature, Trdp_new as new show value, as present show value, is carried out following calculating with Trdp_old.

Trdp_new=Trdp_old+ (Tr-Trdp_old) * Kr+Cr [formula 3]

In the formula 3, Kr, Cr rise in temperature, and (during Tr 〉=Trdp_old) is 0.02,0.01, and descending in temperature, (during Tr＜Trdp_old) is 0.0303,0.01.

For the F room temperature of utilizing display board 32 to show, Tfdp_new as new show value, as present show value, is carried out following calculating with Tfdp_old.

Tfdp_new=Tfdp_old+ (Tf-Tfdp_old) * Kf+Cf [formula 4]

In the formula 4, Kf, Cf rise in temperature, and (during Tf 〉=Tfdp_old) is 0.007,0.01, and descending in temperature, (during Tf＜Tfdp_old) is 0.0110,0.01.

Then, for the refrigerator of said structure by the control of R chamber refrigerating mode when F chamber refrigerating mode switches, describe with the flow chart of Fig. 3, the table of Fig. 4, the time diagram of Fig. 5.Transfer valve 29 is switched to the state of cold-producing medium to R chamber evaporimeter 23 side flow that make, be rotated in the R chamber refrigerating mode of action (step S1) at compressor 3, control substrate 5 is taken into the detection signal of R room temperature sensor 37, according to it R chamber actual temperature is calculated, judged whether being cooled to set point of temperature.In this R chamber refrigerating mode, R chamber pressure fan 24 is just changeing.Then continue R chamber refrigerating mode if R chamber 10 is uncolled to set point of temperature, then stop R chamber refrigerating mode (step S3) if be cooled to set point of temperature.

When R chamber refrigerating mode is stopped, transfer valve 29 is switched to F chamber evaporimeter 26 sides, change F chamber refrigerating mode (step S5) over to.

When carrying out this pattern switching controls, control substrate 5 is from the detected temperatures signal detection of the temperature sensor 35 temperature degree RT that goes out.And externally whether temperature degree RT is set point of temperature, for example judges (step S7) below 20 ℃ or than its height.And, if below the outer temperature degree RT set point of temperature, then force cooling to be set at T1 (for example 5 minutes) duration of runs, and be low speed (for example 1200rpm), make 24 counter-rotatings (step S9A, S11A, S13A) of R chamber pressure fan as the counter-rotating speed setting of R chamber pressure fan 24 as vegetable compartment.On the other hand, if outer temperature degree RT is higher than set point of temperature, then force cooling to be set at T2 (for example 10 minutes) duration of runs, and be (for example 1600rpm) at a high speed, make R chamber pressure fan 24 reverse (step S9B, S11B, S13B) as the counter-rotating speed setting of R chamber pressure fan 24 as vegetable compartment.Utilize the counter-rotating of this R chamber pressure fan 24, as shown in Figure 6, cold air from R chamber pressure fan 24 at first flows through R chamber evaporimeter 23 in R chamber pipeline 16, be cooled by low temperature exhaust heat, this cold air blows out to the bottom of R chamber 10 from the cold air return port of the below of pipeline 16, is formed on the contrary circulation stream that carries out adverse current in the R chamber 10.Thus, the initial contact with demarcation strip 13 of the cold air that blows out in the following direction R chamber 10 of R chamber pipeline 16 and powerful cooling just can be cooled off this demarcation strip 13 is carried out brute force forcibly as the vegetable compartment (V chamber) 14 below its of end face.

Force the cooling T1 duration of runs or T2 if arrive this vegetable compartment, then controlling the detected temperatures of 5 pairs of R chambers of substrate evaporator temperature sensor 38 confirms, if it is lower than set point of temperature (for example 3 ℃), R chamber pressure fan 24 is just being gone to be become than set point of temperature height, utilizes the low temperature exhaust heat of R chamber evaporimeter 23 to make cold air continue the moistening running (step S15, S17) of circulation in R chamber 10.And, if R chamber evaporator temperature than set point of temperature height, then makes the rotation of R chamber pressure fan 24 stop and stopping moistening running (step S19).

In addition, in this example, above-mentioned vegetable compartment force cooling running and moistening running during in, be F chamber refrigerating mode, carry out the F chamber and be cooled to freezer temperature and become below the design temperature.If the F room temperature is below the setting, then when the end of R chamber refrigerating mode, make halted state with F chamber refrigerating mode.

Thus, adopt the refrigerator of example 1, after R chamber refrigerating mode finishes, although change wantonly 1 pattern of the cooling stop mode that F chamber refrigerating mode or compressor stop to cause over to, but owing to R chamber pressure fan 24 being reversed with the stipulated time, the cold air that flows through the part of R chamber evaporimeter 23 and cooled off by low temperature exhaust heat blows attached and V chamber 14 can be cooled off powerfully to the demarcation strip 13 as the end face of V chamber 14 at first, can carry out the cooling of V chamber 14 effectively.Its result for refrigerator same, does not increase structural elements, only the control logic to controller just changes and can more effectively cool off V chamber 14.

Again, by the reversing time of R chamber pressure fan 24 is controlled changeably, can suitably carry out the cooling of V chamber 14 according to refrigerator environment temperature RT, same, by the counter-rotating rotating speed of R chamber pressure fan 24 is controlled changeably, can suitably carry out the cooling of V chamber according to refrigerator environment temperature RT.In addition, these variable controls can be adopted as additional function as required, as the basic function of this example, as long as have when R chamber refrigerating mode stops with the stipulated time, make 24 counter-rotatings of R chamber pressure fan and make the functions of V chamber 14 powerful coolings just passable with the rotating speed of regulation.

Then, the refrigerator to the invention process form 2 describes with reference to Fig. 7 and Fig. 8.The 2nd example, forcing the Cooling Control logic with the vegetable compartment of control substrate 5 is feature, and frame for movement, kind of refrigeration cycle etc. are general with example 1.

In example 2, shown in the time diagram of the table of the flow chart of Fig. 7, Fig. 8, Fig. 9, in step S3, when the arrival of R room temperature stops temperature, if outer temperature degree RT is also than set point of temperature height (be NO among the step S7), the control (step S8) that then transfer valve 29 is remained under the state of R chamber cool position compressor 3 is remained in operation and R chamber pressure fan 24 is reversed with the rotating speed R2 that stipulates with certain hour (1) (for example 5 minutes).And, if, then switch to the state (step S5) of cold-producing medium that make to F chamber evaporimeter 26 side flow with transfer valve 29 through the stipulated time (1).Thereafter vegetable compartment is forced Cooling Control, is general with the same step S9B～S19 of example 1.

On the other hand, in step S3, when the arrival of R room temperature stops temperature, if outer temperature degree RT is a set point of temperature following (being YES among the step S7), then need not make transfer valve 29 remain in the control that makes pressure fan 24 counter-rotating certain hours (1) in R chamber under the situation of R chamber evaporimeter 23 sides, switch to the state (step S5) of cold-producing medium that make to F chamber evaporimeter 26 side flow with transfer valve 29.Carry out control with example 1 same step S9A～S19 thereafter.

Thus, in the refrigerator of example 2, the part of R chamber evaporimeter 23 of flow of refrigerant will be flow through and the cold air that is cooled blows attached and can V chamber 14 be cooled off powerfully to the demarcation strip 13 as the end face of V chamber 14 at first, and the cooling of V chamber 14 can be carried out effectively.In addition, in example 2, in the finish time of R chamber refrigerating mode compressor 3 is turned round, owing under the state that transfer valve 29 is remained on R chamber evaporimeter 23 sides, make 24 counter-rotatings of R chamber pressure fan, so when room temperature is high, can further cool off powerfully to V chamber 14.Thus, for refrigerator same, do not increase structural elements, only the control logic to controller just changes and can more effectively cool off the V chamber.

Then, the refrigerator to the invention process form 3 describes with reference to Figure 10, Figure 11.Example 3 has feature for the shape of the radiator grille 15 of R chamber 10.Therefore, force cooling to control wantonly 1 that also can adopt in the example 1,2 for vegetable compartment.Figure 10 is the cutaway view of refrigerator, and Figure 11 is the stereogram of seeing from the back side of R chamber radiator grille 15.In this example, be provided with opening 40 as feature on the part of the bottom bending part 19 of the radiator grille 15 that links to each other at rear with the demarcation strip 13 of separating R chamber 10 and V chamber 14.This opening 40 is with R chamber pipeline 16 and vegetable compartment (V chamber) 14 parts that are communicated with.And, the size of opening 40 and position, be set at, under the state that R chamber pressure fan 24 is just changeing and cold air circulates in common stream in R chamber 10, the cold air that returns do not flow into to V chamber 14, flow into and can cool off powerfully to V chamber 14 in a part that makes R chamber pressure fan 24 reverse, in R chamber pipeline 16, carry out the cold air of adverse current V chamber 14.

Thus, in example 3, by being used for opening that this air supply duct 16 is communicated with V chamber 14 with being provided with on R chamber 10 and the bending part 19 that separates V chamber 14 at the radiator grille 15 of air supply duct 16 usefulness of the front face side that formation is provided in R chamber evaporimeter 23, can only in the counter-rotating running of R chamber pressure fan 24, cold air be sent into to V chamber 14, can more effectively cool off V chamber 14.

Then, the refrigerator to the invention process form 4 describes with reference to Figure 12, Figure 13.Example 4 has feature for the room temperature control of control substrate 5, for frame for movement, kind of refrigeration cycle, adopts the structure of the example 2 of Fig. 7～shown in Figure 9.

Control substrate 5, for the management of R room temperature, as shown in Figure 1, temperature detection signal Tr with near the R room temperature sensor 36 the cold air return port of the bottom that is arranged on R chamber pipeline 16 obtains R chamber actual temperature Trdp_new by calculating, on display board 32, show the R room temperature, carry out the PID control of the rotary speed of compressor 3 according to this accounting temperature Trdp_new again.This PID control, temperature demonstration are controlled in the example 1 and are described.

In the occasion that R chamber pressure fan 24 is reversed, because cold air descends in R chamber pipeline 16 and becomes the air-flow that blows out to R chamber 10 from the cold air return port, so the cold air of low temperature contacts with R room temperature sensor 36 and R chamber actual temperature is calculated to be low value during than common R chamber refrigerating mode.Its result, control substrate 5, shown in the curve map of Figure 12, rotation is controlled at excessive low speed side to compressor in the PID of compressor 3 control, the situation that the effect that can cause making the V chamber force cooling weakens.On display board 32, can show than actual low R room temperature again.

Therefore, in this example, shown in step S8 ', the S10 of the flow chart of Figure 13, when R chamber pressure fan 24 being reversed control, utilize its R chamber actual temperature Trdp_new before to carry out compressor operation control, the R chamber actual temperature when using the running of reversing to be about to begin when the counter-rotating running of R chamber pressure fan 24 finishes is also carried out later cooling control (step S14) once more.In addition, general processing is put on identical number of steps and is represented for the flow chart of Figure 13 and the flow chart of example 2 shown in Figure 7.

Thus, in example 4, shown in the curve map of Figure 14, carrying out the V chamber when forcing the cooling operation mode, can eliminate and utilize PID to control the shakiness of the speed of the compressor 3 that causes, carry out the V chamber effectively and cool off.

Then, with reference to Figure 16 the invention process form 5 is described.This example has feature aspect the demonstration of the R of display board 32 room temperature, adopts the structure of the example 1 of Fig. 1～shown in Figure 6 for frame for movement, kind of refrigeration cycle.

Control substrate 5, for the management of R room temperature, as shown in Figure 1, obtain R chamber actual temperature Trdp_new by calculating, on display board 32, show as the R room temperature with near the temperature detection signal Tr of the R room temperature sensor 36 the cold air return port of bottom that is arranged on R chamber pipeline 16.

; as implementing to illustrate in the form 4; in the occasion that makes 24 counter-rotatings of R chamber pressure fan; because cold air descends in R chamber pipeline 16 and becomes the air-flow that blows out to R chamber 10 from the cold air return port; so the cold air of low temperature contacts with R room temperature sensor 36 when becoming than common R chamber refrigerating mode; shown in the curve map of Figure 15, R chamber actual temperature is calculated to be low value.Its result, control substrate 5 also shows than actual low R room temperature on display board 32.

Therefore, in this example, shown in the step S6 of the flow chart of Figure 16, under when control that R chamber pressure fan 24 is reversed, state that the R chamber actual temperature Trdp_new before it is shown, stop the calculating of R room temperature, and when the counter-rotating running of R chamber pressure fan 24 finishes, use the R chamber actual temperature when reversing turns round is about to begin to carry out later temperature computation (step S14) once more.In addition, general processing is put on identical number of steps and is represented for the flow chart of Figure 16 and the flow chart of example 1 shown in Figure 5.

Thus, in example 5, shown in the curve map of Figure 17, the R room temperature shows can not depart from actual R room temperature, can improve the reliability of this displays temperature.

The control that also can adopt in the counter-rotating running of R chamber pressure fan 24 R room temperature calculating to stop with the control of compressor in addition, has been described in implementing form 4 like that.

Then, the refrigerator to example 6 of the present invention describes.In each example of the 1st～the 5th, force cooling in order to carry out the V chamber, temperature sensor 41 can also be set in V chamber 14 as shown in figure 18, if this V chamber detected temperatures is below the set point of temperature, then adopt to stop the control that the cooling running is forced in the V chamber.Thus, can avoid that V chamber 14 is excessively strong cold and vegetables are caused damage.

Claims

1, a kind of refrigerator, have: compressor, condenser, refrigerating chamber evaporator for cooling and pressure fan, refrigerating chamber evaporator for cooling and pressure fan, utilize transfer valve that cold-producing medium is circulated in described refrigerating chamber evaporator for cooling or refrigerating chamber evaporator for cooling, have by switching the hocket kind of refrigeration cycle of refrigerating chamber refrigerating mode and refrigerating chamber refrigerating mode of described transfer valve, refrigerating chamber is disposed up and down with vegetable compartment and separate mutually by demarcation strip, described demarcation strip constitutes the end face of described vegetable compartment, in the refrigerating chamber refrigerating mode, thereby make since the cooling of described refrigerating chamber with pressure fan just then flow through the cold air that the part of described refrigerating chamber evaporator for cooling is cooled and in described refrigerating chamber, circulate, from the circulating cold air return port at rear, refrigerating chamber bottom to described refrigerating chamber evaporator for cooling with the cold air sucking-off and recycle, described vegetable compartment is cooled off indirectly by described demarcation strip, it is characterized in that

Have controller, its after described refrigerating chamber refrigerating mode finishes, although change the refrigerating chamber refrigerating mode over to or the cooling stop mode that stops to cause by compressor in wantonly 1 pattern, described refrigerating chamber is cooled off reverses with the stipulated time with pressure fan.

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

Have the ambient temp sensor that the environment temperature to described refrigerator detects,

Described controller is controlled with the reversing time of pressure fan described refrigerating chamber cooling changeably according to the detected refrigerator environment temperature of described ambient temp sensor.

3, refrigerator as claimed in claim 1 is characterized in that,

Described controller is controlled with the counter-rotating rotating speed of pressure fan described refrigerating chamber cooling changeably according to the detected refrigerator environment temperature of described ambient temp sensor.

4, a kind of refrigerator, have: compressor, condenser, refrigerating chamber evaporator for cooling and pressure fan, refrigerating chamber evaporator for cooling and pressure fan, utilize transfer valve that cold-producing medium is circulated in described refrigerating chamber evaporator for cooling or refrigerating chamber evaporator for cooling, have by switching the hocket kind of refrigeration cycle of refrigerating chamber refrigerating mode and refrigerating chamber refrigerating mode of described transfer valve, refrigerating chamber is disposed up and down with vegetable compartment and separate mutually by demarcation strip, described demarcation strip constitutes the end face of described vegetable compartment, in the refrigerating chamber refrigerating mode, thereby make since the cooling of described refrigerating chamber with pressure fan just then flow through the cold air that the part of described refrigerating chamber evaporator for cooling is cooled and in described refrigerating chamber, circulate, from the circulating cold air return port at rear, refrigerating chamber bottom to described refrigerating chamber evaporator for cooling with the cold air sucking-off and recycle, described vegetable compartment is cooled off indirectly by described demarcation strip, it is characterized in that

Have controller, it continues the running of described compressor and described refrigerating chamber cooling is reversed with pressure fan after described refrigerating chamber refrigerating mode finishes under the state that described transfer valve was remained on the stipulated time on the refrigerating chamber cool position.

5, as claim 1 or the described refrigerator of claim 4, it is characterized in that,

Have refrigerator temperature sensor and freezer temperature sensor, and the memory of detected temperatures of the described refrigerator temperature sensor of storage,

Described controller, has the function of the rotating speed of described compressor being controlled according to described temperature of refrigerating chamber and freezer temperature, and, have in the cooling of described refrigerating chamber and the control of described compressor stopped, when the counter-rotating running finishes, control the function of described compressor once more according to the detected temperatures of described refrigerator temperature sensor in the counter-rotating running of pressure fan according to turn round detected temperatures when being about to begin of this counter-rotating.

6, as claim 1 or the described refrigerator of claim 4, it is characterized in that,

Have refrigerator temperature sensor and freezer temperature sensor, carry out temperature temperature displayed display, and the memory of detected temperatures of the described refrigerator temperature sensor of storage of described refrigerating chamber,

Described controller, has the function of the refrigeration indoor temperature being calculated and being shown according to the detected temperatures of described refrigerator temperature sensor on described temperature indicator, and, have the temperature computation that in the counter-rotating running of described refrigerating chamber cooling, stops based on the detected temperatures of described refrigerator temperature sensor, when the counter-rotating running finishes, calculate the function of described refrigeration indoor temperature once more according to turn round detected temperatures when being about to begin of this counter-rotating with pressure fan.

7, as claim 1 or the described refrigerator of claim 4, it is characterized in that, forming the part that refrigerating chamber and vegetable compartment are separated of radiator grille that air supply duct uses, be provided with the peristome that makes this air supply duct be communicated with usefulness with described vegetable compartment, described air supply duct is provided in the front face side of described refrigerating chamber with evaporimeter.

8, as claim 1 or the described refrigerator of claim 4, it is characterized in that,

Have the vegetable compartment temperature sensor that the temperature to described vegetable compartment detects,

Described controller is controlled with the counter-rotating of pressure fan changeably to described refrigerating chamber cooling according to described vegetable compartment temperature the duration of runs.