WO2011086642A1 - 冷蔵庫 - Google Patents
冷蔵庫 Download PDFInfo
- Publication number
- WO2011086642A1 WO2011086642A1 PCT/JP2010/007358 JP2010007358W WO2011086642A1 WO 2011086642 A1 WO2011086642 A1 WO 2011086642A1 JP 2010007358 W JP2010007358 W JP 2010007358W WO 2011086642 A1 WO2011086642 A1 WO 2011086642A1
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- WIPO (PCT)
- Prior art keywords
- door
- lighting
- control
- lighting device
- refrigerator
- Prior art date
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D27/00—Lighting arrangements
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D29/00—Arrangement or mounting of control or safety devices
- F25D29/008—Alarm devices
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D2700/00—Means for sensing or measuring; Sensors therefor
- F25D2700/02—Sensors detecting door opening
Definitions
- the present invention relates to a refrigerator provided with a lighting device.
- a refrigerator using a conventional light emitting diode as a lighting device there is a refrigerator in which a plurality of light emitting diodes are arranged in a square, installed on a top surface in the storage and illuminated in the storage (for example, see Patent Document 1).
- FIG. 10 is a perspective view of a lighting device of a conventional ice making machine described in Patent Document 1
- FIG. 11 is a conceptual view in which the lighting device of FIG. 10 is installed on the top surface of the ice making machine.
- the mounting substrate 101 is flat, a circuit pattern (not shown) is formed on one side or both sides, and an epoxy resin-based substrate or an insulating metal substrate having good thermal conductivity is used.
- the white light emitting diode 102 is formed in a shell shape, has a structure in which a fluorescent material is excited using blue light from a GaN blue light emitting diode to obtain white light, and two current conducting terminals 103 for applying current are provided. It is derived.
- the heat insulating plate 104 is formed in a flat plate shape from a resin such as urethane, and a plurality of insertion holes are provided in parallel, and provided between the mounting substrate 101 and the light emitting diode 102.
- the light emitting diode 102 is mounted by soldering the conductive terminal 103 through the insertion hole of the heat insulating plate 104 to the circuit pattern of the mounting substrate 101, and a plurality of the light emitting diodes 102 are arranged in parallel on the mounting substrate 101.
- the heat insulating plate 104 may be eliminated.
- the lighting device 100 is disposed on the top surface 112 inside the ice making machine 111.
- the light emitting diode 102 is not energized, and the inside of the refrigerator is not illuminated.
- an electronic switch such as a mechanical switch or a Hall IC, a forward current flows through the light emitting diode 102, white light is emitted, and the inside of the storage is irradiated.
- FIG. 27 shows an example of a refrigerator having two interior lightings.
- 10 and 20 are a first storage room and a second storage room, respectively.
- 11 and 21 are a door of the first storage room and a door of the second storage room, respectively.
- Reference numerals 12 and 22 denote a door open / close detection unit of the first storage room and a door open / close detection unit of the second storage room, respectively, and output an electronic signal according to the open / close state of the door of each storage room.
- Reference numerals 13 and 23 denote LED lighting of the first storage room and LED lighting of the second storage room, respectively, which are turned on or off according to the input electronic signal.
- Reference numeral 30 is a main control microcomputer as a control device that controls the electric system of the refrigerator, and outputs an operation signal to a compressor, a fan, a heater, and a cooling switching device based on temperature information and time information. It receives electronic signals from the means 12 and 22 and also controls the lighting or extinguishing of the LED lights 13 and 23.
- Reference numerals 31 and 32 denote timers for measuring the ON time or OFF time of the electronic signal when the LED illuminations 13 and 23 are gradually turned on or off, and are mounted in the main control microcomputer 30.
- a temperature sensor 80 outputs an electronic signal according to the ambient temperature of the sensor.
- a plurality of temperature sensors 80 may be provided to measure the outside air temperature or to measure the temperature of any place in the refrigerator.
- Reference numeral 40 denotes a compressor control microcomputer which receives an electronic signal from the main control microcomputer 30 and controls the operation of the compressor.
- a compressor 41 receives a signal from the compressor control microcomputer 40 and compresses a refrigerant.
- Reference numeral 50 denotes a fan which performs on / off switching and change of the number of rotations by an electronic signal from the control microcomputer 30. The fan 50 is for making cold air in the refrigerator flow or blowing a wind on the compressor to promote heat radiation, and a plurality of the fans 50 may be provided.
- a heater 60 is provided for receiving an electronic signal from the main control microcomputer 30 and for preventing freezing and condensation of each part of the refrigerator, and a plurality of heaters may be provided.
- Reference numeral 70 denotes a cooling switching device that receives an electronic signal from the main control microcomputer 30 and switches the flow path of the refrigerant in the refrigerator.
- the door open / close detection unit 12 detects that the door is opened, and notifies the main control microcomputer 30 as electronic information. At this time, the main control microcomputer 30 starts control to turn on the LED illumination 13 gradually.
- An example of the electronic signal which the main control microcomputer 30 outputs to the LED illumination 13 is shown in FIG.
- the main control microcomputer 30 first outputs a signal to turn on the LED illumination 13 only for one hour, in order to gradually turn on the LED illumination 13. Subsequently, a signal to turn off the LED illumination 13 is output for only one OFF time. Furthermore, the signal which turns on the LED illumination 13 only for ON 2 hours is output.
- the lighting device is repeatedly turned on and off every time the door of the refrigerator is opened and closed, and in particular, control of the lighting device when the door remains open is not described at all. For this reason, the user can not recognize that the door is in the open state, which causes the amount of outside air to intrude into the chamber to increase, and the temperature in the chamber is likely to rise, resulting in an increase in power consumption.
- the present invention solves the above-mentioned conventional problems, and when the door opening and closing detection means continues door opening for a predetermined time or more, the light emitting element of the lighting device is turned on and off to allow the user to look inside the storage It is an object of the present invention to provide a refrigerator which urges the user that the door is in the open state visually even in a state where the door is open with a lighting device and prevents an increase in power consumption of the refrigerator.
- the lighting device when another door can be opened with a time difference from the first opened door of the refrigerator having the left and right doors, the lighting device is repeatedly turned on and off.
- the light source of the lighting device is a light emitting diode
- there is directivity and by opening the first door and then opening another door, the light bounces back to the storage in the refrigerator and the user feels glare.
- the light emitting diode when the light emitting diode is directed to the user side, the light is likely to enter the eye and the user feels more glare.
- the door of the refrigerator is opened with the light of the room turned off, such as at night, when the light emitting diode of the lighting device is continuously lit, the stored items in the refrigerator are easily blinded.
- the user can not properly take out the storage items desired, and the storage position is not determined, and the door of the refrigerator remains open more than necessary. If such a condition persists, although the energy-saving light emitting diode is used as lighting, the glare of the lighting device increases heat penetration from the outside into the refrigerator, leading to a decrease in cooling efficiency and power consumption. Had the task of increasing the energy-saving light emitting diode
- the present invention solves the above-mentioned conventional problems, and in a refrigerator in which the light emitting element of the lighting device is turned on and off by the door open / close detection unit, the open / closed state of the first opened door is detected by the door open / close detection unit.
- the lighting device is not turned on continuously, light is gradually turned off and then light is gradually turned on.
- the door open / close detection means 2 detects the open state of another door, the door is opened first.
- Another object of the present invention is to provide a refrigerator which can reduce the number of timers used and reduce the cost by sharing the timer for lighting the light emitting element in view of the problems described above.
- the refrigerator according to the present invention has a storage room provided with a door, a door open / close detection means for detecting the open / close of the door, and the light on / off controlled by the door open / close detection means.
- a refrigerator provided with a lighting device for storage room lighting, when the door open / close detection means detects the open state of the door and the door is opened for a predetermined time or more, lighting and extinguishing of the lighting device are periodically performed.
- a light reduction control in which the ratio of the lighting time of the lighting device is gradually decreased and the light reduction is performed, and a ratio in the lighting time is gradually increased to increase the light It is characterized by including a control device that repeats the control.
- the refrigerator of the present invention is further provided with a plurality of doors
- the door detection means is a first door open / close detection means for detecting opening / closing of one door
- the other A second door opening / closing detection means for detecting opening / closing of the door
- the lighting device is a first lighting device whose lighting and extinguishing are controlled by the first door opening / closing detection means
- the second door opening / closing detection means A second lighting device whose lighting and extinguishing are controlled by the control unit
- the control device detects the open state of the one door by the first door opening / closing detection means, and turns on and off the first lighting device
- light reduction control to gradually reduce the ratio of the lighting time of the first lighting device in the driving control, and the ratio of the lighting time of the first lighting device gradually Control to increase the Repeatedly, when the open state of the other door is detected by the second door open / close detection unit, in the drive control for the second lighting device, the control synchronization of the door
- the control synchronize
- the refrigerator according to the present invention also detects a plurality of storage chambers having a front opening, a plurality of doors provided corresponding to the respective storage chambers, and opening and closing of the doors.
- a refrigerator comprising: a plurality of door opening / closing detection means; and a lighting device for respectively illuminating the storage room whose lighting and extinguishing are controlled by the respective door opening / closing detection means,
- a light reduction control that makes the first lighting device, which is one of the lighting devices, periodically repeat lighting and extinguishing, and gradually reduces the ratio of the lighting time of the first lighting device to gradually reduce light;
- the driving control is repeated based on a timer, repeating the lighting control to increase the ratio of the lighting time and increasing the light, and causing the second lighting device, which is one of the lighting devices, to periodically repeat lighting and extinguishing,
- drive control is repeated based on the timer, wherein light reduction control is performed by gradually decreasing the ratio of the lighting time of the first lighting device and performing light reduction control by gradually increasing the ratio of the lighting time by increasing the ratio of the lighting time.
- a controller may be provided.
- the refrigerator according to the present invention urges the user that the door is still in the open door condition visually even when the user is looking at the inside of the refrigerator, and prevents the increase in the power consumption of the refrigerator. Can.
- the refrigerator according to the present invention can gradually turn off the lighting device without turning on the lighting device continuously in the open door of the left or right of the cold storage room having the left and right doors, repeat lighting gradually from the turning off, and open another door. Together with the cycle of the door that was first opened, it is possible to reduce the burden on the user's vision and to prevent an increase in the power consumption of the entire refrigerator.
- the number of timers used can be reduced.
- FIG. 1 is a cross-sectional view of a refrigerator according to an embodiment of the present invention.
- FIG. 2 is a main part longitudinal cross-sectional view of the illuminating device in the same embodiment.
- FIG. 3 is a block diagram of the refrigerator of the embodiment.
- FIG. 4 is a flowchart of the refrigerator of the embodiment.
- FIG. 5 is a timing chart of the refrigerator of the embodiment.
- FIG. 6 is a flowchart of the refrigerator in the embodiment of the present invention.
- FIG. 7 is a timing chart of the refrigerator in the embodiment of the present invention.
- FIG. 8 is a block diagram of a refrigerator according to the embodiment of this invention.
- FIG. 9 is a block diagram of a refrigerator according to the embodiment of this invention.
- FIG. 10 is a perspective view of a lighting device of a conventional ice making machine.
- FIG. 11 is a conceptual view in which the conventional lighting device is installed on the top surface of the ice making machine.
- FIG. 12 is a cross-sectional view of a refrigerator according to an embodiment of the present invention.
- FIG. 13 is a longitudinal cross-sectional view of main parts of the lighting device in the embodiment.
- FIG. 14 is a block diagram of the refrigerator of the embodiment.
- FIG. 15 is a flowchart of the refrigerator of the embodiment.
- FIG. 16 is a timing chart of the refrigerator of the embodiment.
- FIG. 17 is a flowchart of the refrigerator in the embodiment of the present invention.
- FIG. 18 is a timing chart of the refrigerator in the embodiment of the present invention.
- FIG. 19 is a block diagram of a refrigerator according to the embodiment of this invention.
- FIG. 20 is a block diagram of a refrigerator according to the embodiment of this invention.
- FIG. 21 is a perspective view of a lighting device of a conventional ice making machine.
- FIG. 22 is a conceptual view in which the conventional lighting device is installed on the top surface of the ice making machine.
- FIG. 23 is a configuration diagram of a refrigerator in the embodiment of the present invention.
- FIG. 24 is an explanatory diagram of a lighting device control signal in the embodiment of the present invention.
- FIG. 25 is an explanatory diagram of the luminance of the lighting device in the embodiment of the present invention.
- FIG. 26 is an explanatory diagram of lighting delay control of the lighting device in the embodiment of the present invention.
- FIG. 27 is a block diagram of a refrigerator according to the prior art.
- the refrigerator includes a storage room provided with a door, a lighting device for illuminating the storage room, a door opening / closing detection means for detecting opening / closing of the door, and a refrigerator for lighting / extinguishing the lighting device by the door opening / closing detection means.
- the open / close state of the door is detected by the door open / close detection means, and when the door is opened for a predetermined time or more, the ratio of the ON / OFF time of the current supplied to the lighting device is controlled, and the lighting device repeats lighting and extinguishing
- the controller is provided with a control device that turns on and off the lighting device by repeating the light reduction control to turn off the light gradually by decreasing the ratio of the ON time and the light increase control to turn on by gradually increasing the ratio of the ON time thereafter.
- the lighting device can prompt the user that the door is still in the open door state visually, and an increase in the power consumption of the refrigerator can be prevented.
- control device may determine the ratio of the ON / OFF time of the current supplied to the lighting device and the cycle T, and may gradually advance the cycle T.
- warning sound notification means for giving a warning sound may be provided, and the warning sound notification means may emit the warning sound when the door is opened for a predetermined time or more.
- the door open notification state can be reduced visually and aurally.
- control device may include display means for displaying an internal state such as an internal temperature or an internal setting temperature on the surface of the door when the door is opened, and may blink the display portion of the display means.
- a plurality of mounting substrates mounted with a plurality of light emitting elements as light sources may be disposed, and the light increase control and the light reduction control may be independently controlled for each of the mounting substrates.
- lighting control can be performed individually for each mounting board, so that the door open notification state can be notified to the user by various patterns of lighting and extinguishing.
- a plurality of mounting substrates mounted with a plurality of light emitting elements as light sources may be disposed, and the light increase control and the light reduction control may control all the plurality of mounting substrates in synchronization.
- FIG. 1 is a cross-sectional view of a refrigerator according to a first embodiment of the present invention.
- the illumination device 20 is an illumination device using an LED or the like as a light source, and is disposed in the vertical direction on the left side wall and the right side wall in the refrigerator compartment 13 respectively.
- the door open / close detection unit 24 is a device including an electronic switch such as a mechanical switch or a Hall IC, and is a device that detects the open / close state of the door 25 of the refrigerator compartment 13.
- the control device 26 is installed in the substrate storage unit 28.
- the freezer compartment fan 10 circulates the cold air in the freezer compartment 11, and also circulates the cold air to the refrigerator compartment 13 when the damper 12 is in the open state. When the cold room 13 does not require cold air, the damper 12 is closed.
- the compressor fan 14 cools the compressor 16 and a condenser (not shown) installed in the machine room 15 by air.
- the solenoid valve 17 controls the flow rate of the refrigerant to the cooler 18.
- the automatic ice making machine 19 twists the ice making tray 21 to perform an ice removing operation.
- the temperature detection means 22 causes the control device 26 to detect the temperature of each part of the refrigerator.
- FIG. 2 is a longitudinal sectional view of an essential part of the lighting device 20 in the embodiment.
- the illuminating device 20 is equipped with several light emitting elements as a light source.
- the mounting substrate 1 has a flat plate shape, a circuit pattern (not shown) is formed on one side or both sides, and an epoxy resin-based substrate or an insulating metal substrate having good thermal conductivity is used.
- the light emitting diode 2 is adopted as a light emitting element of the light source in the case of the present embodiment.
- the light emitting diode 2 is formed in a shell shape.
- the light emitting diode 2 includes, for example, a structure in which a fluorescent material is excited using blue light from a GaN-based blue light emitting diode to obtain white light, and the light emitting diode 2 includes two conducting terminals 3 for conducting current.
- the heat insulating plate 4 is formed in a flat plate shape from a resin such as urethane, and a plurality of insertion holes are provided in parallel, and provided between the mounting substrate 1 and the light emitting diode 2.
- the light emitting diode 2 is mounted with the conductive terminal 3 inserted through the insertion hole of the heat insulating plate 4 and soldered to the circuit pattern of the mounting substrate 1, and a plurality of the light emitting diodes 2 are arranged in parallel in the vertical direction.
- the heat insulating plate 4 may be eliminated.
- the mounting substrate 1 on which a plurality of light emitting diodes are mounted in the vertical direction is held by the spacer 6 integrally formed with the outer frame 9 in the recess 5 provided in the refrigerator side wall 8.
- a lamp cover 7 is disposed as a lighting device 20 on the left and right wall surfaces in the refrigerator so as to cover the entire light emitting portion of the light emitting diode 2 at a certain distance from the light emitting portion.
- FIG. 3 is a block diagram of the refrigerator in the first embodiment of the present invention.
- the microcomputer 30 in the control device 26 obtains the temperature of each part of the refrigerator from the temperature detection means 22 and issues a drive command to the freezer compartment fan 10, the compressor fan 14, the solenoid valve 17 and the automatic ice maker 19.
- the solenoid valve 17 and the automatic ice maker 19 are programmed in the microcomputer 30 so as not to drive simultaneously because the amount of current used is large.
- the control device 26 detects the open / close state of the door 25 by the door open / close detection unit 24 and drives the lighting device 20 by the lighting device drive circuit 31 when the door 25 is open.
- the freezer compartment fan 10 is driven by a freezer compartment fan drive circuit 32.
- the freezer compartment fan 10 can be operated at variable speed by the freezer compartment fan drive circuit 32, and when the microcomputer 30 judges that the freezer compartment fan 10 needs to be rotated from the temperature signal of the temperature detection means 22, the state Thus, high speed rotation and low speed rotation can be switched.
- the compressor fan 14 is driven by a compressor fan drive circuit 33.
- the solenoid valve 17 is driven by a solenoid valve drive circuit 34.
- the automatic ice making machine 19 is driven by an automatic ice making machine drive circuit 35.
- the timer counter 36 is incorporated in the microcomputer 30, and integrates the elapsed time since the door 25 is closed.
- FIG. 4 is a flowchart relating to the open / close state of the door 25 of the refrigerator and the drive control of the lighting device 20 in the first embodiment of the present invention.
- FIG. 5 is a timing chart showing the operation of each stage (1, 2, 3), with the horizontal axis as time unit, for the operation of lighting and extinguishing the light emitting diode 2 of the lighting device 20.
- Step 1 clears the timer count of the timer counter 36 if the signal from the door open / close detection means 24 is closed, and the process returns to step 1. If the signal from the door open / close detection unit 24 indicates that the door is open, the process proceeds to step 2.
- Step 2 starts counting of the timer counter 36, and sets an argument A to an initial value of one.
- step 3 if the count value of the timer counter 36 is equal to or greater than T1, that is, if the door open time is equal to or greater than T1, the process proceeds to step 5, and it is determined that the door open state continues for a long time. It switches to the lighting control that it has been left open.
- step 3 If the count value of the timer counter 36 in step 3 is equal to or less than T1, the process proceeds to step 4.
- Step 4 keeps the light emitting diode 2 lit.
- Step 5 represents that the light emitting diode 2 of the lighting device 20 is turned on after the elapse of T1.
- step 6 if the timer counter 36 compares T2 ⁇ A (initial value is 1) and the count value is T2 ⁇ A or less, the process proceeds to step 4; if the count value is T2 ⁇ A or more, the process proceeds to step 7 Transition.
- Step 7 turns off the light emitting diode 2 of the lighting device 20.
- step 8 the timer counter 36 compares T3. If the count value is T3 or less, the process proceeds to step 7. If the count value is T3 or more, the process proceeds to step 9.
- the light emitting diode 2 of the lighting apparatus 20 is turned on during the T2 ⁇ A period, which is the operation of the first T3 period. After time A has elapsed, the light is turned off until period T3.
- step 9 a value obtained by subtracting the P value from the argument A is used as the argument A.
- Step 10 clears the timer counter 36 if the count value of T2 ⁇ (AP) is less than or equal to 0, and proceeds to Step 11. If T2 ⁇ (AP) is greater than 0, turn on the light emitting diode Move to step 5 while keeping the
- the light emitting diode 2 of the lighting apparatus 20 during the T2.times. (AP) period becomes the operation of the second period T3 period.
- Step 11 represents that after step 10, the count value is cleared and the light emitting diode 2 of the lighting device 20 gradually shifts to lighting display.
- step 12 if the timer counter 36 compares T2 ⁇ A (initial value is 1) and the count value is T2 ⁇ A or less, the process proceeds to step 12; if the count value is T2 ⁇ A or more, the process proceeds to step 13 Transition.
- Step 13 turns off the light emitting diode 2 of the lighting device 20.
- step 14 the timer counter 36 compares T3. If the count value is T3 or less, the process proceeds to step 14. If the count value is T3 or more, the process proceeds to step 15.
- the light emitting diode 2 of the lighting apparatus 20 is turned on during the T2 ⁇ A period, which is the operation of the first T3 period. After the lapse of T2 ⁇ A time, the light is turned off until the T3 period.
- step 15 a value obtained by adding the P value to the argument A is set as the argument A.
- Step 16 clears the timer counter 36 if the count value of T2 ⁇ (A + P) is equal to or more than T3 and shifts to Step 1. If T2 ⁇ (A + P) is less than T3, step 11 with the light emitting diode turned on. Transition to
- the light emitting diode 2 of the lighting device 20 for the T2 ⁇ (A + P) period which is the operation of the second period T3 period, is lit.
- the light emitting diode 2 of the lighting device 20 gradually increases the lighting time, lights up until T2 ⁇ (A + P), and then goes out until T3. Then stage 4 is repeated.
- the control device 26 drives and controls the lighting device 20 based on the above flow, and the user opens the cold storage room door 25 and the door open / close detection means 24 detects the door open, and the following state It becomes. That is, as shown in stage 1 of FIG. 5, the refrigerator compartment door 25 is kept on during the period T1 even if the refrigerator compartment door 25 is open.
- the operation shifts to stage 2 operation, and the lighting time for the predetermined time T3 is T2 ⁇ A (first), T2 ⁇ (AP) (second), T2 ⁇ (A-P-P) (third),... T2 * (A-P-%) (Nth) drive control of the lighting device 20 is performed.
- the ON time which is the time during which the lighting device 20 is lit, is shortened by gradually shortening the time for flowing the current to the light emitting diode.
- the lighting time for the predetermined time T3 is T2 ⁇ A (first), T2 ⁇ (A + P) (second), T2 ⁇ (A + P + P) (third),.
- the blinking of the lighting device 20 is controlled as x (A + P + ...) (Nth).
- the ON time for lighting the lighting device 20 is extended by gradually increasing the time for flowing the current to the light emitting diode. Then, the stage 2 and the stage 3 are repeated.
- the door when the door is opened, it remains lit for T1 hours and gradually darkens from there, and then gradually brightens, so it is gentle for the user and makes it difficult to see in the refrigerator compartment 13.
- the burden on the user's vision by the lighting device can be further reduced, and the increase in power consumption of the entire refrigerator can be further prevented.
- the light emitting diode 2 has directivity, so either by reflection on the stored material or directly When the light is received, it is possible for the light to be easily jumped in to the eyes of the user, which makes it possible to solve the problem that the inside of the refrigerator compartment 13 is difficult to see in reverse.
- the lighting device can prompt the user to prevent an increase in power consumption of the refrigerator.
- the control device 26 included in the refrigerator shown in the first embodiment repeats the light reduction control while gradually reducing the lighting time in the same cycle T, and then repeats the light increase control while gradually increasing the light.
- FIG. 6 is a flowchart regarding the open / close state of the door 25 of the refrigerator and the drive control of the lighting device 20 in the second embodiment of the present invention.
- FIG. 7 is a timing chart showing the operation of each stage (101, 102, 103), with the operation of lighting and extinguishing the light emitting diode 2 of the lighting device 20 as a time unit on the horizontal axis.
- Step 101 clears the timer count of the timer counter 36 if the signal from the door open / close detection means 24 is closed, returns to step 101, and step 102 if the signal from the door open / close detection means 24 is open. Transition to
- Step 102 starts the count of the timer counter 36 and sets the argument A to an initial value of 1 and the coefficient R to an initial value of 0.9.
- step 103 if the count value of the timer counter 36 is T1 or more, the process proceeds to step 5, and if the count value of the timer counter 36 in step 3 is T1 or less, the process proceeds to step 104.
- Step 104 keeps the light emitting diode 2 lit.
- Step 105 represents that the light emitting diode 2 of the lighting device 20 is turned on after the elapse of T1.
- step 106 the timer counter 36 compares T2 ⁇ A ⁇ R (the initial value of A is 1, R is 0.9), and if the count value is T2 ⁇ A ⁇ R or less, the process proceeds to step 104. If the value is equal to or greater than T2 ⁇ A ⁇ R, the process proceeds to step 107.
- Step 107 turns off the light emitting diode 2 of the lighting device 20.
- step 108 the timer counter 36 compares T3. If the count value is T3 or less, the process proceeds to step 107. If the count value is T3 or more, the process proceeds to step 109.
- the light emitting diode 2 of the lighting apparatus 20 is turned on during the T2.times.A.times.R period, which is the operation of the first T3 period. After the elapse of T2 ⁇ A ⁇ R time, the light is turned off until the T3 period.
- step 109 a value obtained by subtracting the P value from the argument A is set as the argument A.
- Step 110 clears the timer counter 36 if the count value of T2 ⁇ (AP) ⁇ R is less than or equal to 0, and proceeds to Step 1. If T2 ⁇ (AP) ⁇ R is greater than 0, The process proceeds to step 105 with the light emitting diode turned on.
- the light emitting diode 2 of the T2 ⁇ (AP) ⁇ R period lighting device 20 operates as the second period T3 period as shown in the stage 102 of FIG. It lights up.
- Step 11 represents that after step 110, the count value is cleared and the light emitting diode 2 of the lighting device 20 gradually shifts to the lighting display.
- step 112 the timer counter 36 compares T2 ⁇ A (A is initial value 1, R is 0.9), and if the count value is T2 ⁇ A or less, the process proceeds to step 112, the count value is T2 ⁇ If it is A or more, the process proceeds to step 113.
- Step 113 turns off the light emitting diode 2 of the lighting device 20.
- step 114 the timer counter 36 compares T3. If the count value is T3 or less, the process proceeds to step 130. If the count value is T3 or more, the process proceeds to step 131.
- the light emitting diode 2 of the lighting apparatus 20 is turned on during the T2 ⁇ A period, which is the operation of the first T3 period. After the elapse of T2 ⁇ A ⁇ R time, the light is turned off until the T3 period.
- a step 115 sets a value obtained by adding the P value to the argument A as the argument A.
- step 116 if the count value of T2 x (A + P) x R is T3 or less, the timer counter 36 is cleared and the process proceeds to step 101. If T2 x (A + P) x R is T3 or more, the light emitting diode is turned on. Proceed to step 11 as it is.
- the light emitting diode 2 of the lighting device 20 of T2 ⁇ (A + P) ⁇ R period becomes the operation of the second period T3 period. Become.
- the light emitting diode 2 of the lighting device 20 gradually increases the lighting time, lights up to T2 ⁇ (A + P) ⁇ R, and then turns off until T3. Thereafter, the stage 104 is repeated.
- the following state is obtained. That is, as in the stage 101 of FIG. 7, the light emitting diode 2 is kept on for the time T1.
- the operation of the stage 102 is performed, and the lighting time for the predetermined time T3 is T2 ⁇ A ⁇ R (first), T2 ⁇ (AP) ⁇ R (second), T2 ⁇ (APP) ⁇ R (third),... T2 ⁇ (AP ⁇ ...) ⁇ R (Nth), the time for flowing the current through the light emitting diode
- the lighting time is reduced gradually and always reduced, and the lighting time for a predetermined time T3 is reduced to T2 ⁇ A ⁇ R (first), T2 ⁇ (A + P) ⁇ R (second) as in stage 3. ), T2 ⁇ (A + P + P) ⁇ R (third),... T2 ⁇ (A + P +...) ⁇ R (Nth), the time for flowing the current through the light emitting diode is always gradually increased. And the ON time for lighting is extended, and the stages 102 and 103 are repeated.
- the light emitting diode 2 blinks in a brightening state more gradually gradually from the light reducing state, so that the light of the directional light emitting diode 2
- the brightening control is performed with the number of repetitions fixed at a certain number, but the number of repetitions of the same lighting time for T3 may be gradually reduced.
- the brightness of the light emitting diode 2 in the transition period from the light reduction state to the light increase state can be smoothly controlled.
- the refrigerator according to the present invention is provided with a control device for controlling the current supplied to the light emitting diode 2 by the door open / close detection means 24 and when the door open / close detection means detects the open state of the door 25, the control device 26 After turning off the current flowing to 2 for a predetermined time, the ratio of the ON / OFF time of the current is such that the ON time is gradually decreased and the cycle T is gradually advanced.
- the lighting device 20 is gradually brightened to be in a lighting state at the time of lighting, it is possible to improve the quality of the lighting and to suppress the power consumption when the door 25 is opened.
- the ON time of the light emitting diode can be suppressed to prolong the life of the light emitting diode.
- the refrigerator according to the present invention is provided with a control device for controlling the current supplied to the light emitting diode 2 by the door open / close detection means 24 and when the door open / close detection means detects the open state of the door 25. After turning off the current flowing for a predetermined time, the same ON / OFF time of the current is repeated, and then the ON time is gradually lengthened and repetitively controlled.
- the quality as illumination with a high-class feeling can be further improved.
- the light emitting diode 2 is controlled to gradually brighten and gradually dim after the predetermined time T1 elapses as in step 3 and then gradually brightens from the dimmed state, but the predetermined time does not elapse.
- the illumination device is not lighted at a stretch, and by gradually brightening more smoothly, the burden on the user's vision is reduced, and the door open state due to glare and light reflection becomes longer than necessary. This can be reduced to prevent an increase in power consumption of the entire refrigerator.
- FIG. 8 is a block diagram relating to the open / close state of the door 25 of the refrigerator and the drive control of the lighting device 20 in the third embodiment of the present invention.
- the light reduction control is performed while gradually reducing the lighting time with respect to the cycle T, and then the light increase control is repeatedly performed while gradually increasing. Implement to generate a synchronization.
- the warning sound by the buzzer 38 is gradually reduced, and when performing the light increase control, synchronization is made such that the warning sound by the buzzer 38 is gradually increased or vice versa.
- FIG. 9 is a block diagram relating to the open / close state of the door 25 of the refrigerator and the drive control of the lighting device 20 in the fourth embodiment of the present invention.
- the light reduction control is performed while gradually reducing the lighting time for T, and then the light increase control is repeatedly performed while gradually increasing.
- the temperature is controlled to be inside the refrigerator or the refrigerator.
- the display substrate 40 displaying a temperature display from the display means 39 for displaying the preset temperature etc., the display substrate temperature display is blinked.
- synchronization is performed by flashing the temperature display of the display substrate to control to gradually dim and then gradually brighten from the dimmed state, thereby reducing the burden on the user's vision, glare and so on.
- the mounting substrate 1 is formed of one mounting substrate 1 on one side wall of the opening, but a plurality of mounting substrates 1 are arranged on one side wall.
- a plurality of light emitting diodes 2 may be mounted on the mounting substrate 1.
- the above-mentioned brightening control and dimming control are independently controlled for each mounting substrate 1, and the illumination of one mounting substrate 1 is The illumination of the other mounting substrate 1 may be controlled so as to be a dimmed state. This makes it possible to prevent all the lights in the refrigerator compartment 13 from being turned off and getting dark even when the door is kept open for a long time, making it difficult to see stored items in the refrigerator.
- illumination control is performed independently, and when one lighting device 20 is performing brightening control, the other lighting device 20 Is controlled by shifting the light increase control and the light decrease control by the lighting devices 20 on the left and right walls so that the light decrease control is performed, thereby preventing the entire inside of the storage from being in the light decrease state. Even if it lasts for more than a minute, the interior of the cabinet can be brightly controlled simultaneously with the warning to the user.
- the refrigerator of another aspect is the storage room provided with a door, the illuminating device which illuminates the said storage room, and the 1st door opening-and-closing detection which detects opening and closing of one door with the refrigerator compartment of the said storage room with a double door.
- a second door open / close detection unit for detecting the opening / closing of the other door
- a first illumination device for performing brightening control and dimming control by the first door open / close detection unit, and brightening control by the second door open / close detection unit
- a second lighting device for performing dimming control, wherein the first door opening / closing detection means detects the open state of the one door, and the ratio of the ON / OFF time of the current supplied to the first lighting device is In control, the lighting device repeats the light increase control and the light decrease control, gradually reduces the ratio of the ON time to decrease the light, and then gradually increases the ratio of the ON time to increase the light. And repeat these.
- the ratio of the ON / OFF time of the current supplied to the second lighting device is synchronized with the ratio of the first lighting device. Therefore, the lighting device is not turned on continuously, light reduction control is gradually performed from lighting, control to increase light control gradually from the light reduction state is repeated, the burden on the user's vision is reduced, and glare or reflection of light It is possible to prevent an increase in the power consumption of the entire refrigerator by reducing the door open state from being unnecessarily long.
- the control device may determine the ratio of the ON / OFF time of the current supplied to the lighting device and the cycle T, and may gradually make the cycle T faster.
- the control device may determine the ratio of the ON / OFF time of the current supplied to the lighting device and the cycle T, and may gradually make the cycle T faster.
- reporting means which alert
- the warning sound notifying means emits the warning sound, so that the user can detect the door opening forgetting to close or the door slipping due to the bite of food by the warning sound, and the power consumption of the whole refrigerator Can be prevented.
- display means may be provided on the surface of the door to display the temperature inside the chamber or the temperature set inside the chamber, and the display unit of the display means may blink.
- the door open state becomes longer than necessary due to glare and light reflection, and the user blinks the door open and detects the door slip due to the bite of the food by blinking the display means. It is possible to prevent the increase in power consumption of the entire refrigerator.
- FIG. 12 is a cross-sectional view of the refrigerator in the fifth embodiment of the present invention.
- the illumination device 20 is an illumination device using an LED or the like as a light source, and is disposed in the vertical direction on the left side wall and the right side wall in the refrigerator compartment 13 respectively.
- the door open / close detection unit 24 is a device such as a mechanical switch or an electronic switch such as a hall IC, and is a device that detects the open / close state of the refrigerator compartment door 25 of the refrigerator compartment 13.
- the control device 26 is installed in the substrate storage unit 28.
- FIG. 13 is a longitudinal sectional view of an essential part of a lighting device 20 according to the same embodiment.
- the mounting substrate 1 on which a plurality of light emitting diodes are mounted in the vertical direction is held by the spacer 6 integrally formed with the outer frame 9 in the recess 5 provided in the refrigerator side wall 8.
- a lamp cover 7 is disposed as a lighting device 20 on the left and right wall surfaces in the refrigerator so as to cover the entire light emitting portion of the light emitting diode 2 at a certain distance from the light emitting portion.
- FIG. 14 is a block diagram of the refrigerator in the first embodiment of the present invention.
- the microcomputer 30 in the control device 26 obtains the temperature of each part of the refrigerator from the temperature detection means 22, and issues a drive command to the freezer compartment fan 10, the compressor fan 14, the solenoid valve 17 and the automatic ice maker 19.
- the solenoid valve 17 and the automatic ice maker 19 are programmed in the microcomputer 30 so as not to drive simultaneously because the amount of current used is large.
- the open / close state of the door 25 is detected by the first door open / close detection means 24, and in the case of the open state, the lighting device drive circuit 31 drives the lighting device 20.
- the timer counter 36 is incorporated in the microcomputer 30, and integrates the elapsed time since the door 25 is closed.
- FIG. 15 is a flowchart relating to the open / close state of the door 25 of the refrigerator and the drive control of the lighting device 20 in the embodiment of the present invention.
- FIG. 16 is a timing chart showing the operation of each stage (1, 2, 3, 4), with the horizontal axis as time unit, for the operation of lighting and extinguishing the light emitting diode 2 of the lighting device 20.
- the step 1 clears the timer count of the timer counter 36 if the signal from the door open / close detection means 24 is closed, and returns to the step 1, or step 2 if the signal from the door open / close detection means 24 is open. Transition to
- Step 2 starts counting of the timer counter 36, and sets an argument A to an initial value of one.
- step 3 if the count value of the timer counter 36 is T1 or more, the process proceeds to step 5, and if the count value of the timer counter 36 in step 3 is T1 or less, the process proceeds to step 4.
- Step 4 keeps the light emitting diode 2 lit.
- the door opening / closing detection means 24 detects that the door 25 of the refrigerator compartment is opened as shown in the stage 1 of FIG. 16 by performing the operations of the steps 3 and 4 as described above, the lighting device T1 time from the door opening is detected. The lighting of the 20 light emitting diodes 2 is maintained.
- Step 5 represents that the light emitting diode 2 of the lighting device 20 is turned on after the elapse of T1.
- step 6 if the timer counter 36 compares T2 ⁇ A (initial value is 1) and the count value is T2 ⁇ A or less, the process proceeds to step 4; if the count value is T2 ⁇ A or more, the process proceeds to step 7 Transition.
- Step 7 turns off the light emitting diode 2 of the lighting device 20.
- step 8 the timer counter 36 compares T3. If the count value is T3 or less, the process proceeds to step 7. If the count value is T3 or more, the process proceeds to step 9.
- the light emitting diode 2 of the lighting apparatus 20 is turned on during period T2. After time A has elapsed, the light is turned off until period T3.
- step 9 a value obtained by subtracting the P value from the argument A is used as the argument A.
- Step 10 clears the timer counter 36 if the count value of T2 ⁇ (AP) is less than or equal to 0, and proceeds to Step 11. If T2 ⁇ (AP) is greater than 0, turn on the light emitting diode Move to step 5 while keeping the
- the light emitting diode 2 of the lighting apparatus 20 during the T2.times. (AP) period becomes the operation of the second period T3 period.
- Step 11 represents clearing the count value after step 10 and gradually increasing the light by the light emitting diode 2 of the lighting device 20.
- step 12 if the timer counter 36 compares T2 ⁇ A (initial value is 1) and the count value is T2 ⁇ A or less, the process proceeds to step 12; if the count value is T2 ⁇ A or more, the process proceeds to step 13 Transition.
- Step 13 turns off the light emitting diode 2 of the lighting device 20.
- step 14 the timer counter 36 compares T3. If the count value is T3 or less, the process proceeds to step 14. If the count value is T3 or more, the process proceeds to step 15.
- the light emitting diode 2 of the lighting apparatus 20 is turned on during the T2 ⁇ A period, which is the operation of the first T3 period as shown in the stage 2 of FIG. After the lapse of T2 ⁇ A time, the light is turned off until the T3 period.
- step 15 a value obtained by adding the P value to the argument A is set as the argument A.
- Step 16 clears the timer counter 36 if the count value of T2 ⁇ (A + P) is T3 or less, and proceeds to step 1; if T2 ⁇ (A + P) is T3 or more, step 11 with the light emitting diode turned on. Transition to
- the light emitting diode 2 of the illumination device 20 for the T2 ⁇ (A + P) period which is the operation of the second period T3 period, is lit.
- the light emitting diode 2 of the lighting device 20 gradually increases the lighting time, lights up until T2 ⁇ (A + P), and then goes out until T3.
- Step 17 clears the timer counter of the timer counter 36 if the signal from the door open / close detection means 24 is closed, and returns to step 1, and if the signal from the second door open / close detection means 41 is open, Transfer to step 18.
- Step 18 starts the count of the timer counter 36 and sets the argument A to an initial value of one.
- step 19 if the count value of the timer counter 36 is T1 or more, the process proceeds to step 21. If the count value of the timer counter 36 in step 3 is T1 or less, the process proceeds to step 4.
- Step 20 keeps the light emitting diode 2 lit.
- Step 21 represents that the light emitting diode 2 of the lighting device 20 is turned on after the elapse of T1.
- step 22 if the timer counter 36 compares T2 ⁇ A (initial value is 1) and the count value is T2 ⁇ A or less, the process proceeds to step 20. If the count value is T2 ⁇ A or more, the process proceeds to step 23. Transition.
- Step 23 turns off the light emitting diode 2 of the lighting device 20.
- step 24 the timer counter 36 compares T3. If the count value is T3 or less, the process proceeds to step 23. If the count value is T3 or more, the process proceeds to step 25.
- the light emitting diode 2 of the lighting apparatus 20 is turned on during period T2.times.A, which is the operation of the first period T3. After time A has elapsed, the light is turned off until period T3.
- step 25 a value obtained by subtracting the P value from the argument A is set as the argument A.
- Step 26 clears the timer counter 36 if the count value of T2 x (AP) is less than or equal to 0, and proceeds to step 27. If T2 x (AP) is greater than 0, turn on the light emitting diode The process proceeds to step 21 while keeping the
- the light emitting diode 2 of the lighting device 20 during the T2.times. (AP) period becomes the operation of the second period T3 period.
- Step 27 represents that the count value is cleared after step 26 and the light emitting diode 2 of the lighting apparatus 20 gradually shifts to lighting display.
- step 28 if the timer counter 36 compares T2 ⁇ A (initial value is 1) and the count value is T2 ⁇ A or less, the process proceeds to step 28. If the count value is T2 ⁇ A or more, the process proceeds to step 29. Transition.
- Step 29 turns off the light emitting diode 2 of the lighting device 20.
- step 30 the timer counter 36 compares T3. If the count value is T3 or less, the process proceeds to step 30. If the count value is T3 or more, the process proceeds to step 31.
- the operation of the first T3 period is performed, and the light emitting diode 2 of the lighting apparatus 20 is lit during the T2.times.A period. After the lapse of T2 ⁇ A time, the light is turned off until the T3 period.
- step 31 a value obtained by adding the P value to the argument A is set as the argument A.
- Step 32 clears the timer counter 36 if the count value of T2 ⁇ (A + P) is T3 or less, and proceeds to step 1; if T2 ⁇ (A + P) is T3 or more, step 27 with the light emitting diode turned on Transition to
- the light emitting diode 2 of the lighting device 20 for the T2 ⁇ (A + P) period which is the operation of the second period T3 period, is lit.
- the light emitting diode 2 of the lighting device 20 gradually increases the lighting time, lights up until T2 ⁇ (A + P), and then goes out until T3.
- the state is shown in stage 4.
- the control device 26 controls the lighting device 20 based on the flow as described above, so that the user opens the door 25 on the left side of the cold storage room and the door open / close detection means 24 detects the door open. It becomes a state. That is, as shown in the stage 1 of FIG.
- the operation shifts to stage 2 operation, and the lighting time for the predetermined time T3 is T2 ⁇ A (first), T2 ⁇ (AP) (second), T2 ⁇ (A-P-P) (third),... T2 ⁇ (A-P-(7) (N-th) is used to control the blinking of the lighting device 20.
- the ON time which is the time during which the lighting device 20 is lit, is shortened by gradually shortening the time for flowing the current to the light emitting diode.
- the lighting time for the predetermined time T3 is T2 ⁇ A (first), T2 ⁇ (A + P) (second), T2 ⁇ (A + P + P) (third),.
- the blinking of the lighting device 20 is controlled as x (A + P + ...) (Nth).
- the ON time for lighting the lighting device 20 is extended by gradually increasing the time for flowing the current to the light emitting diode. Then, the stages 2 and 3 are repeated, and thereafter, the door 25a on the right of the refrigerator compartment is opened, the first door opening / closing detection means 24 operates, and the same cycle of the left and right doors is performed to operate the stage 4.
- the lamp when the door is opened, the lamp is kept lit for 1 hour, and after being darkened gradually, it is gradually brightened and the cold storage right door is opened to match the cycle of the cold storage left door
- the stored matter receives light by reflection or direct light This makes it possible to eliminate the problem that light is likely to jump into the eyes of the user and the inside of the refrigerator compartment 13 is difficult to see in reverse.
- the brightening control is performed while gradually reducing the lighting time for T, and then the dimming control is repeatedly performed while gradually increasing.
- the cycle T can be advanced by using this embodiment. The transition from the brightening state to the dimming state can be performed more smoothly.
- FIG. 17 is a flow chart relating to the open / close state of the door 25 of the refrigerator and the drive control of the lighting device 20 in the second embodiment of the present invention.
- FIG. 18 is a timing chart showing the operation of each stage (101, 102, 103), with the operation of lighting and extinguishing the light emitting diode 2 of the lighting device 20 as a time unit on the horizontal axis.
- Step 101 clears the timer counter of the timer counter 36 if the signal from the first door open / close detection means 24 is closed, and returns to step 101, and if the signal from the first door open / close detection means 24 is open For example, the process proceeds to step 102.
- Step 102 starts the count of the timer counter 36 and sets the argument A to an initial value of 1 and the coefficient R to an initial value of 0.9.
- step 103 if the count value of the timer counter 36 is T1 or more, the process proceeds to step 5, and if the count value of the timer counter 36 in step 3 is T1 or less, the process proceeds to step 104.
- Step 104 keeps the light emitting diode 2 lit.
- T1 time from the door opening is The lighting of the light emitting diode 2 of the lighting device 20 is maintained.
- Step 105 represents that the light emitting diode 2 of the lighting device 20 is turned on after the elapse of T1.
- step 106 the timer counter 36 compares T2 ⁇ A ⁇ R (the initial value of A is 1, R is 0.9), and if the count value is T2 ⁇ A ⁇ R or less, the process proceeds to step 104. If the value is equal to or greater than T2 ⁇ A ⁇ R, the process proceeds to step 107.
- Step 107 turns off the light emitting diode 2 of the lighting device 20.
- step 108 the timer counter 36 compares T3. If the count value is T3 or less, the process proceeds to step 107. If the count value is T3 or more, the process proceeds to step 109.
- the light emitting diode 2 of the lighting apparatus 20 is turned on during the T2.times.A.times.R period, which is the operation of the first T3 period. After the elapse of T2 ⁇ A ⁇ R time, the light is turned off until the T3 period.
- step 109 a value obtained by subtracting the P value from the argument A is set as the argument A.
- Step 110 clears the timer counter 36 if the count value of T2 ⁇ (AP) ⁇ R is less than or equal to 0, and proceeds to Step 1. If T2 ⁇ (AP) ⁇ R is greater than 0, The process proceeds to step 105 with the light emitting diode turned on.
- the light emitting diode 2 of the T2 ⁇ (AP) ⁇ R period lighting device 20 becomes the operation of the second period T3 period. It lights up.
- Step 11 represents that the count value is cleared after step 110 and the light emitting diode 2 of the lighting device 20 is gradually brightened.
- step 112 the timer counter 36 compares T2 ⁇ A (A is initial value 1, R is 0.9), and if the count value is T2 ⁇ A or less, the process proceeds to step 112, the count value is T2 ⁇ If it is A or more, the process proceeds to step 113.
- Step 113 turns off the light emitting diode 2 of the lighting device 20.
- step 114 the timer counter 36 compares T3. If the count value is T3 or less, the process proceeds to step 14. If the count value is T3 or more, the process proceeds to step 15.
- the operation of the first T3 period is performed, and the light emitting diode 2 of the lighting apparatus 20 is lit during the T2.times.A period. After the elapse of T2 ⁇ A ⁇ R time, the light is turned off until the T3 period.
- a step 115 sets a value obtained by adding the P value to the argument A as the argument A.
- step 116 if the count value of T2 x (A + P) x R is T3 or less, the timer counter 36 is cleared and the process proceeds to step 101. If T2 x (A + P) x R is T3 or more, the light emitting diode is turned on. Proceed to step 11 as it is.
- the light emitting diode 2 of the lighting apparatus 20 is turned on during the T2.times. (A + P) .times.R period, which is the operation of the second period T3 period. It becomes.
- the light emitting diode 2 of the lighting device 20 gradually increases the lighting time, lights up to T2 ⁇ (A + P) ⁇ R, and then turns off until T3. Thereafter, the stage 104 is repeated.
- the door 25a at the right of the refrigerator compartment is opened to operate the first door open / close detection means 24, and as shown in the stage 101 of FIG. After that, the operation shifts to the operation of the stage 102, and the lighting time for the predetermined time T3 is T2 ⁇ A ⁇ R (first), T2 ⁇ (AP) ⁇ R (second), T2 ⁇ (AP ⁇ ) P) ⁇ R (third),... T2 ⁇ (A-P ⁇ ...) ⁇ R (Nth) As shown in FIG. The ON time for lighting is shortened, and the lighting time for a predetermined time T3 is T2 ⁇ A ⁇ R (first), T2 ⁇ (A + P) ⁇ R (second), T2 ⁇ (A + P + P) as in stage 3.
- Step 117 clears the timer count of the timer counter 36 if the signal from the second door open / close detection means 41 is closed, and returns to step 117, and if the signal from the second door open / close detection means 41 is open For example, the process proceeds to step 118.
- Step 118 starts counting of the timer counter 36 and sets the argument A to an initial value of 1 and the coefficient R to an initial value of 0.9.
- step 119 if the count value of the timer counter 36 is T1 or more, the process proceeds to step 5, and if the count value of the timer counter 36 in step 3 is T1 or less, the process proceeds to step 120.
- Step 120 keeps the light emitting diode 2 lit.
- the second door open / close detection means 41 detects that the cold storage left door 25 has been opened as shown in the stage 101 of FIG. 18 by performing the operations of steps 103 and 104 as described above, it is The lighting of the light emitting diode 2 of the lighting device 20 is maintained.
- Step 121 represents that the light emitting diode 2 of the lighting device 20 is turned on after the elapse of T1.
- step 122 the timer counter 36 compares T2 ⁇ A ⁇ R (the initial value of A is 1, R is 0.9), and if the count value is T2 ⁇ A ⁇ R or less, the process proceeds to step 104. If the value is T2 ⁇ A ⁇ R or more, the process proceeds to step 123.
- Step 123 turns off the light emitting diode 2 of the lighting device 20.
- step 124 the timer counter 36 compares T3. If the count value is T3 or less, the process proceeds to step 123. If the count value is T3 or more, the process proceeds to step 125.
- the light emitting diode 2 of the lighting apparatus 20 is turned on during the T2.times.A.times.R period, which is the operation of the first T3 period. After the elapse of T2 ⁇ A ⁇ R time, the light is turned off until the T3 period.
- step 125 a value obtained by subtracting the P value from the argument A is used as the argument A.
- step 127 if the count value of T2 ⁇ (AP) ⁇ R is 0 or less, the timer counter 36 is cleared and the process proceeds to step 1. If T2 ⁇ (AP) ⁇ R is larger than 0, The process proceeds to step 121 with the light emitting diode turned on.
- the light emitting diode 2 of the lighting apparatus 20 becomes the operation of the second period T3 period, that is, the T2 ⁇ (AP) ⁇ R period. Lights up.
- Step 127 represents that the count value is cleared after step 126 and the light emitting diode 2 of the lighting apparatus 20 gradually shifts to lighting display.
- step 1208 the timer counter 36 compares T2 ⁇ A (A is initial value 1, R is 0.9), and if the count value is T2 ⁇ A or less, the process proceeds to step 128, the count value is T2 ⁇ If it is A or more, the process proceeds to step 129.
- Step 129 turns off the light emitting diode 2 of the lighting device 20.
- step 130 the timer counter 36 compares T3. If the count value is T3 or less, the process proceeds to step 120. If the count value is T3 or more, the process proceeds to step 131.
- the light emitting diode 2 of the lighting apparatus 20 is turned on during the T2 ⁇ A period, which is the operation of the first T3 period. After the elapse of T2 ⁇ A ⁇ R time, the light is turned off until the T3 period.
- step 132 a value obtained by adding the P value to the argument A is set as the argument A.
- step 132 if the count value of T2 x (A + P) x R is T3 or less, the timer counter 36 is cleared and the process proceeds to step 117. If T2 x (A + P) x R is T3 or more, the light emitting diode is turned on. Then, the process proceeds to step 127.
- the light emitting diode 2 of the lighting device 20 of T2 ⁇ (A + P) ⁇ R period becomes the operation of the second period T3 period. Become.
- the light emitting diode 2 of the lighting device 20 gradually increases the lighting time, lights up to T2 ⁇ (A + P) ⁇ R, and then turns off until T3. Thereafter, the stage 104 is repeated.
- the cold room right door 25a is opened, and the first door open / close detection means 24 operates, and as shown in the stage 101 of FIG.
- the operation of the stage 102 is started, and the lighting time for the predetermined time T3 is T2 ⁇ A ⁇ R (first), T2 ⁇ (AP) ⁇ R (second), T2 ⁇ (t) A-P-P) x R (third), ... T2 x (A-P-...) x R (N-th)
- the time for flowing the current to the light emitting diode is always gradually gradually Shorten and turn on the ON time.
- the lighting time for the predetermined time T3 is T2 ⁇ A ⁇ R (first), T2 ⁇ (A + P) ⁇ R (second), T2 ⁇ (A + P + P) ⁇ R (third) T2 ⁇ (A + P +...) ⁇ R (Nth)), the time for flowing the current to the light emitting diode is gradually extended, and the ON time for lighting is extended. Then, these stages 102 and 103 are repeated. Thereafter, the door 25b on the left side of the refrigerator compartment is opened, the second door open / close detecting means 41 operates, and the same cycle of the left and right doors is performed to operate the stage 104.
- the light emitting diode 2 is lighted so as to shift to the brightening state more smoothly from the light reducing state, so that the directional light emitting diode 2 This makes it possible to reduce the room's visibility against light, and to reduce the amount of power consumption of the entire refrigerator.
- the brightening control is performed with the number of repetitions fixed at a certain number, but the number of repetitions of the same lighting time for T3 may be gradually reduced.
- the brightness of the light emitting diode 2 in the transition period from the light reduction state to the light increase state can be smoothly controlled.
- the refrigerator according to the present invention is provided with a control device for controlling the current supplied to the light emitting diode 2 by the first door open / close detection means 24 and when the second door open / close detection means 41 detects the open state of the left door 25b,
- the controller 26 controls the current flowing through the light emitting diode 2 to be ON for a predetermined time, and then to gradually decrease the ON time in the ratio of the ON / OFF times of the current and to accelerate the cycle T gradually.
- the open state of the right door 25a is detected by the second door open / close detection means 41, the cycle is matched with the ratio of the ON / OFF time of the left door 25b.
- the lighting device 20 is gradually brightened and lighted at the time of lighting and the left and right cycles are matched, it is possible to improve the quality of the lighting and to suppress the power consumption when the door 25 is opened.
- the on life of the light emitting diode can be prolonged.
- the refrigerator according to the present invention further includes a control device that controls the current supplied to the light emitting diode 2 by the first door open / close detection unit 24, and the second door open / close detection unit 41 detects the open state of the left door 25 b.
- the device 26 turns off the current supplied to the light emitting diode 2 for a predetermined time, repeats the same ON / OFF time of the current, and then gradually increases the ON time to repeat control, and the first door opening / closing detection means 24 controls the right door When the open state of the door 25a is detected, it is matched with the ON / OFF time of the left door 25b.
- the light emitting diode 2 of the lighting device 20 is lighted in a smooth brightening state at the time of lighting, it is possible to further improve the quality as a high-grade lighting.
- the lighting device is not lighted at a stretch, but by lightening more smoothly gradually and gradually, the burden on the user's vision is reduced, and the door open state by glare and light reflection becomes longer than necessary. Can be reduced to prevent an increase in power consumption of the entire refrigerator.
- FIG. 19 is a block diagram related to the open / close state of the door 25 of the refrigerator and the drive control of the lighting device 20 in the present embodiment.
- the light reduction control is performed while gradually reducing the lighting time for T, and then the light increase control is repeatedly performed while gradually increasing.
- the warning sound is synchronized by the buzzer 38 from the warning sound generation means 37. To make it happen.
- the warning sound is synchronized with the control that gradually dims and then lights gradually gradually gradually from the dimmed state, thereby reducing the burden on the user's vision and opening the door by glare and light reflection.
- the user can be alerted to a warning awareness, and a warning sound can prevent the door from being left open, and the entire refrigerator Increase in power consumption can be prevented.
- FIG. 20 is a block diagram relating to the open / close state of the door 25 of the refrigerator and the drive control of the lighting device 20 in the present embodiment.
- the light reduction control is performed while gradually reducing the lighting time for T, and then the light increase control is repeatedly performed while gradually increasing.
- the temperature display on the display substrate blinks and synchronizes with the control to gradually turn off and then turn on brightly gradually, thereby reducing the burden on the user's vision, by glare and reflection of light. It is possible to prevent the door open state from becoming longer than necessary, and further to prevent notification that the door is open and bite of food, and to prevent an increase in power consumption of the entire refrigerator.
- the lighting device is controlled to be turned on and dimmed by a plurality of storage chambers having a front opening, a lighting device for illuminating the storage chamber, and a plurality of door opening / closing detection means corresponding to the plurality of storage chambers.
- the lighting device turns on and off while changing the ratio of ON / OFF time of current, and at least one timer in the control device that measures the ON / OFF time is a plurality of It is a refrigerator characterized by measuring said ON / OFF time of a storeroom. This has the effect that the number of timers can be reduced.
- door opening / closing detection means corresponding to the other door After detecting that one door is opened by the door opening / closing detection means corresponding to the one door, door opening / closing detection means corresponding to the other door that the other door is opened within a predetermined time
- the lighting device of the other storage room corresponding to the other door opened later is synchronized with the brightening control of the lighting device of the one storage room corresponding to the one door opened earlier. It may be This has the effect that the number of timers can be reduced by synchronizing the brightening control of a plurality of lighting devices.
- door opening / closing detection corresponding to the other door that the other door is opened after a predetermined time or more has elapsed
- the refrigerator waits for the end of the brightening control of the lighting device of one storage room corresponding to the one door opened earlier and detects the brightening control of the lighting device of the other storage room when it is detected by means. It is also good. As a result, it is possible to use the timer by controlling the light increase control of the plurality of lighting devices not to overlap in time, and to reduce the number of timers required.
- the refrigerator may be a refrigerator that starts the brightening control of the lighting device after waiting for a certain period of time. In this way, by letting the user recognize that there is a time lag before the lighting device lights up by opening the door, the user does not feel discomfort even when the brightening control on the door side opened later is kept waiting It has an action.
- FIG. 23 is a configuration diagram of an electric system of the refrigerator in the first embodiment of the present invention.
- 110 and 120 are a first storage room and a second storage room, respectively.
- 111 and 121 are the door of the first storage room and the door of the second storage room, respectively.
- Reference numerals 112 and 122 denote a door open / close detection unit of the first storage room and a door open / close detection unit of the second storage room, respectively, and output an electronic signal according to the open / close state of the door of each storage room.
- Reference numerals 113 and 123 respectively denote LED lighting as a first lighting device provided with a light emitting element for lighting a first storage room, and LED as a second lighting apparatus provided with a light emitting element for lighting a second storage room It is lighting.
- the LED lights 113 and 123 are controlled to be lighted or extinguished by an electronic signal input to the main control microcomputer 130.
- Reference numeral 130 is a main control microcomputer that controls the electric system of the refrigerator, and outputs operation signals to the compressor, fan, heater, and cooling switching device based on temperature information and time information, and also the door opening / closing detection means 112 and 122 Functions as a control device that receives an electronic signal from the control unit and also controls turning on or off the LED lights 113 and 123.
- the LED illuminations 113 and 123 are each obtained by mounting a plurality of LEDs on one substrate, and a plurality of substrates may be arranged side by side.
- a timer 131 measures the ON time or OFF time of the electronic signal when the LED illuminations 113 and 123 are gradually brightened or dimmed, and is mounted inside the main control microcomputer 130.
- a temperature sensor 180 outputs an electronic signal according to the ambient temperature of the sensor.
- a plurality of temperature sensors 180 may be provided for measuring the outside air temperature or for measuring the temperature of any place in the refrigerator.
- a compressor control microcomputer 140 receives an electronic signal from the main control microcomputer 130 and controls the operation of the compressor.
- Reference numeral 141 denotes a compressor that receives a signal from the compressor control microcomputer 140 and compresses a refrigerant.
- Reference numeral 150 denotes a fan which performs on / off switching and change of the number of rotations by an electronic signal from the control microcomputer 130.
- the fan 150 is used to flow cold air in the refrigerator or apply wind to the compressor to promote heat radiation, and a plurality of the fans 150 may be provided.
- a heater 160 is provided for receiving an electronic signal from the main control microcomputer 130 and for preventing freezing and condensation of each part of the refrigerator, and a plurality of heaters may be provided.
- Reference numeral 170 denotes a cooling switching device that receives an electronic signal from the main control microcomputer 130 and switches the flow path of the refrigerant in the refrigerator.
- the door opening / closing detection means 112 detects that the door is opened, and notifies the main control microcomputer 130.
- the main control microcomputer 130 starts control to turn on the LED illumination 113 gradually.
- An example of the electronic signal which the main control microcomputer 130 outputs to the LED illumination 113 is shown in FIG.
- the main control microcomputer 130 When the main control microcomputer 130 is notified by the door open / close detection unit 112 that the door 111 is opened, the main control microcomputer 130 first outputs a signal to turn on the LED illumination 113 only for one hour. Subsequently, a signal to turn off the LED illumination 113 is output for one hour OFF.
- the signal which turns on the LED illumination 113 only for ON 2 hours is output.
- ON 2 time ⁇ ON 1 hour.
- a signal to turn off the LED illumination 113 is output for only OFF 2 hours.
- OFF2 hours ⁇ OFF1 hours.
- the signal which turns on the LED illumination 113 only for ON 3 hours is output.
- ON 3 time ON ON 2 time it is assumed that ON 3 time ON ON 2 time.
- the signal which turns off LED lighting 113 only for OFF 3 hours is output.
- OFF3 hours ⁇ OFF2 hours.
- the ON time is gradually increased, and the OFF time is gradually reduced, and finally the LED lighting 113 is gradually brightened by constantly turning on. The same applies to the LED lighting in the second storage room.
- the timer 131 continuously operates continuously from time Ts to time Te in order to measure each ON time and each OFF time of FIG.
- the timer 131 is for control (brightening control) to gradually brighten the LED illumination on the door 25 side opened earlier. Since the ON time or OFF time of any of FIG. 24 is being measured, it is not possible to start measurement from 1 hour because of the LED illumination on the door side opened later.
- the LED illumination on the door opened later synchronizes with the LED illumination on the door opened earlier. Decide to light gradually, while if the time when the door is opened later is later than T1, wait for the brightening control of the LED light on the door opened later until the LED illumination on the door opened earlier is always on. As soon as the timer 131 is opened from the light increase control of the LED light on the door side opened earlier, the light increase control on the LED light on the door side opened later is executed using the timer 131.
- the LED illumination on the door side opened later is a pattern as shown by a solid line in pattern B of FIG. It synchronizes at Tb time to the brightening control of the LED illumination on the door side opened earlier shown by A. Then, as shown in pattern B, at time Tb, the brightness of the LED illumination on the side opened later rises sharply, but since the refrigerator is built, at time Tb, the opened door itself becomes a blind, By adjusting the time T1 so that the user can not see the illumination and the amount of sharp rise of the luminance is too large, it is possible to prevent the user from having a feeling of sudden lighting.
- FIG. 26 is a graph showing an example in which the LED illumination is gradually turned on after a fixed time after the door is opened.
- the brightening control of the LED illumination is started at time Ts and completely lit at time Te.
- the refrigerator according to the present invention can be applied to a household or commercial refrigerator, and in particular, can be applied to a refrigerator provided with illumination using a light emitting diode or an organic EL as a light source. Furthermore, it can be applied to a wide range of equipment provided with interior lighting such as an article storage device with a door.
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Abstract
Description
12および22は、それぞれ、第一の貯蔵室の扉開閉検知手段および第二の貯蔵室の扉開閉検知手段であり、それぞれの貯蔵室の扉の開閉状態に応じた電子信号を出力する。13および23は、それぞれ、第一の貯蔵室のLED照明および第二の貯蔵室のLED照明であり、入力する電子信号により、点灯または消灯を行う。
30は、冷蔵庫の電気系統制御を司る制御装置としての主制御マイコンであり、温度情報や時間情報をもとにコンプレッサ、ファン、ヒータ、冷却切替装置へ動作信号を出力するほか、前記扉開閉検知手段12および22からの電子信号を受け、前記LED照明13および23の点灯または消灯の制御も行う。
31および32は、それぞれ、前記LED照明13および23を徐々に点灯または消灯させる際の電子信号のON時間またはOFF時間を計測するタイマーであり、主制御マイコン30の内部に搭載する。80は温度センサであり、センサの周囲温度に応じた電子信号を出力する。前記温度センサ80は、外気温測定のため、或いは冷蔵庫内の任意の場所の温度測定のためなどに、複数個設けても良い。
40は、主制御マイコン30からの電子信号を受け、コンプレッサの動作を制御するコンプレッサ制御マイコンである。41は、コンプレッサ制御マイコン40からの信号を受け、冷媒を圧縮するコンプレッサである。
50は、制御マイコン30からの電子信号により、ON/OFF切り替えや回転数の変更を行うファンである。前記ファン50は、冷蔵庫内の冷気を流動させたり、コンプレッサに風を当てて放熱を促進させるためのものであり、複数個設けても良い。60は、主制御マイコン30からの電子信号を受け、冷蔵庫各部の凍結や結露防止のために設けられるヒータであり、複数個設けても良い。70は、主制御マイコン30からの電子信号を受け、冷蔵庫内の冷媒の流路を切り替える冷却切替装置である。
以下、本発明の実施の形態1を図1から図4に基づいて説明する。
図1は、本発明の実施の形態1における冷蔵庫の断面図である。
照明装置20は、LEDなどを光源とする照明装置であって、冷蔵室13内の左側壁面と右側壁面にそれぞれ縦方向に配設されている。
扉開閉検知手段24は、機械式スイッチやホールIC等の電子式スイッチで構成され、冷蔵室13の冷蔵室の扉25の開閉状態を検出する装置である。
制御装置26は、基板収納部28に設置されている。
冷凍室ファン10は、冷凍室11内の冷気を循環させるとともに、ダンパー12が開状態の場合は冷蔵室13へも冷気を循環させる。冷蔵室13に冷気を必要としない場合は、ダンパー12を閉状態とする。
コンプレッサファン14は機械室15に設置されたコンプレッサ16やコンデンサ(図示せず)を空冷する。
電磁弁17は冷却器18への冷媒の流量を制御する。自動製氷機19は、製氷皿21を捻り、離氷動作を行う。温度検出手段22は冷蔵庫各部の温度を制御装置26に検知させる。
同図に示すように、照明装置20は、複数の発光素子を光源として備えている。
実装基板1は平板状で、一面または両面に回路パターン(図示せず)が形成され、熱伝導性の良好なエポキシ樹脂系の基板や絶縁金属基板を使用される。
光源の発光素子としては本実施の形態の場合発光ダイオード2が採用されている。発光ダイオード2は、砲弾状に形成されている。発光ダイオード2は、例えば、GaN系の青色発光ダイオードからの青色光を用いて蛍光材を励起して白色光を得る構造を備え、電流を通電する2本の通電端子3を備える。
断熱板4は、ウレタン等の樹脂により平板状に形成され、複数の挿通孔が並設されて、実装基板1と発光ダイオード2との間に設けられる。ここで、発光ダイオード2は通電端子3が断熱板4の挿通孔に挿通され、実装基板1の回路パターンに半田付けされて実装され、縦方向に複数個が実装基板1に並設される。尚、発光ダイオード2の発熱量が少ない場合には、断熱板4は廃止しても構わない。
電磁弁17と自動製氷機19は使用する電流量が大きいため、同時に駆動することがないようにマイクロコンピュータ30にプログラミングされている。
また、制御装置26は、扉開閉検知手段24により扉25の開閉状態を検出し、開状態の場合は照明装置駆動回路31により照明装置20を駆動する。
冷凍室ファン10は冷凍室ファン駆動回路32により駆動される。冷凍室ファン10は冷凍室ファン駆動回路32により、可変速で運転することが可能であり、温度検出手段22の温度信号よりマイクロコンピュータ30が冷凍室ファン10の回転が必要と判断すると、その状態により、高速回転と低速回転を切り替えることができる。
コンプレッサファン14はコンプレッサファン駆動回路33により駆動される。
電磁弁17は電磁弁駆動回路34により駆動される。
自動製氷機19は自動製氷機駆動回路35により駆動される。タイマカウンタ36はマイクロコンピュータ30に内蔵され、扉25が閉状態になってからの経過時間を積算する。
実施の形態1に示した冷蔵庫が備える制御装置26は、同一周期Tにおける点灯時間を徐々に小さくしながら減光制御を行い、その後徐々に大きくしながら増光制御を行うことを繰り返す。
図8は、本発明の実施の形態3における冷蔵庫の扉25の開閉状態と照明装置20の駆動制御に関するブロック図である。
図9は、本発明の実施の形態4における冷蔵庫の扉25の開閉状態と照明装置20の駆動制御に関するブロック図である。
以下、本発明の実施の形態1を図12から図15に基づいて説明する。図12は、本発明の実施の形態5における冷蔵庫の断面図である。
照明装置20は、LEDなどを光源とする照明装置であって、冷蔵室13内の左側壁面と右側壁面にそれぞれ縦方向に配設されている。
扉開閉検知手段24は、機械式スイッチやホールIC等の電子式スイッチで構成され、冷蔵室13の冷蔵室扉25の開閉状態を検出する装置である。
制御装置26は、基板収納部28に設置されている。
実施の形態5はTに対する点灯時間を徐々に小さくしながら増光制御を行い、その後徐々に大きくしながら減光制御を行うことを繰り返すが、本実施の形態にすることで、周期Tを早めることで増光状態から減光状態への移行状態をさらにスムーズに行うことができる。
図19は、本実施の形態における冷蔵庫の扉25の開閉状態と照明装置20の駆動制御に関するブロック図である。
図20は、本実施の形態における冷蔵庫の扉25の開閉状態と照明装置20の駆動制御に関するブロック図である。
図23は、本発明の実施の形態1における冷蔵庫の電気系統の構成図である。図23において、110および120は、それぞれ、第一の貯蔵室および第二の貯蔵室である。111および121は、それぞれ、第一の貯蔵室の扉および第二の貯蔵室の扉である。112および122は、それぞれ、第一の貯蔵室の扉開閉検知手段および第二の貯蔵室の扉開閉検知手段であり、それぞれの貯蔵室の扉の開閉状態に応じた電子信号を出力する。
2 発光ダイオード
20 照明装置
24 扉開閉検知手段
25 扉
26 制御装置
36 タイマカウンタ
10、20、110、120 貯蔵室
11、21、111、121 扉
12、22、112、122 扉開閉検知手段
13、23113、123 LED照明
30、130 主制御マイコン
31、32、131 タイマー
40、140 コンプレッサ制御マイコン
41、141 コンプレッサ
50、150 ファン
60、160 ヒータ
70、170 冷却切替装置
80、180 温度センサ
Claims (10)
- 扉を備える貯蔵室と、前記扉の開閉を検知する扉開閉検知手段と、前記扉開閉検知手段によって点灯および消灯が制御される前記貯蔵室内照明用の照明装置とを備える冷蔵庫において、
前記扉開閉検知手段によって前記扉の開状態を検知し前記扉が所定時間以上開放されると、前記照明装置に対し点灯と消灯とを周期的に繰返させる駆動制御を行い、さらに、前記駆動制御において、徐々に前記照明装置の点灯時間の比率を小さくして減光する減光制御と、徐々に点灯時間の比率を大きくして増光する増光制御とを繰り返す制御装置
を備えることを特徴とする冷蔵庫。 - 前記制御装置は、前記照明装置に対し点灯と消灯とを周期的に繰返させる周期を徐々に早くすることを特徴とする請求項1に記載の冷蔵庫。
- さらに、警告音を報知する警告音報知手段を備え、
前記制御装置は、扉が所定時間以上開放されると前記警告音を発するように前記警告音報知手段を制御する請求項1に記載の冷蔵庫。 - さらに、ドアの表面に庫内状態を表示する表示手段を備え、
前記制御装置は、扉開時、前記表示手段の表示部を点滅するように制御する請求項1に記載の冷蔵庫。 - 前記照明装置は、光源が実装された複数の実装基板を備え、
前記制御装置は、前記実装基板ごとに独立して前記駆動制御をすることを特徴とする請求項1に記載の冷蔵庫。 - 前記照明装置は、光源が実装された複数の実装基板を備え、
前記制御装置は、複数の前記実装基板を同期させて前記調光制御することを特徴とする請求項1に記載の冷蔵庫。 - 当該冷蔵庫は、複数の扉を備え、
前記扉検知手段は、一方の扉の開閉を検知する第1扉開閉検知手段と、他方の扉の開閉を検知する第2扉開閉検知手段とを備え、
前記照明装置は、前記第1扉開閉検知手段によって点灯および消灯が制御される第1照明装置と、前記第2扉開閉検知手段によって点灯および消灯が制御される第2照明装置とを備え、
前記制御装置は、
前記第1扉開閉検知手段によって前記一方の扉の開状態を検知し、前記第1照明装置に対し点灯と消灯とを周期的に繰返させる駆動制御を行い、さらに、前記駆動制御において徐々に前記第1照明装置の点灯時間の比率を小さくする減光制御と、徐々に前記第1照明装置の点灯時間の比率を大きくする増光制御とを繰り返し、
前記第2扉開閉検知手段によって前記他方の扉の開状態を検知した場合、前記第2照明装置に対する駆動制御において、前記第1照明装置に対する減光制御と増光制御とに同期する制御を行う
請求項1に記載の冷蔵庫。 - 前面が開口する複数の貯蔵室と、それぞれの前記貯蔵室に対応して設けられる複数の扉と、前記扉の開閉をそれぞれ検知する複数の扉開閉検知手段と、それぞれの前記扉開閉検知手段によって点灯および消灯が制御される前記貯蔵室内をそれぞれ照らす照明装置とを備える冷蔵庫において、
前記照明装置の一つである第1照明装置に対し点灯と消灯とを周期的に繰返させ、徐々に前記第1照明装置の点灯時間の比率を小さくして減光する減光制御と、徐々に点灯時間の比率を大きくして増光する増光制御とを繰り返す駆動制御をタイマーに基づいて行い、前記照明装置の一つである第2照明装置に対し点灯と消灯とを周期的に繰返させ、徐々に前記第1照明装置の点灯時間の比率を小さくして減光する減光制御と、徐々に点灯時間の比率を大きくして増光する増光制御とを繰り返す駆動制御を前記タイマーに基づいて行う制御装置を備える冷蔵庫。 - 前記扉開閉検知手段の一つである第1扉開閉検知手段にて扉開を検知した後所定時間以内に、前記扉開閉検知手段の一つである第2扉開閉検知手段にて扉開を検知した場合、前記第2扉開閉検知手段に基づき制御される前記第2照明装置は、前記第1扉開閉検知手段に基づき制御される前記第1照明装置の前記駆動制御に同期する請求項8に記載の冷蔵庫。
- 前記第1扉開閉検知手段にて扉開を検知した後、所定時間以上経過後に前記第2扉開閉検知手段にて扉開を検知した場合、前記第1扉開閉検知手段に基づき制御される前記第1照明装置の増光制御の終了を待って、前記第2扉開閉検知手段に基づき制御される前記第2照明装置の増光制御を行う請求項8に記載の冷蔵庫。
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Cited By (2)
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CN104896870A (zh) * | 2015-07-08 | 2015-09-09 | 安庆市达东电子科技有限公司 | 一种冰箱运行状态的控制组件 |
CN109708424A (zh) * | 2018-12-07 | 2019-05-03 | 青岛海尔股份有限公司 | 一种保鲜冰箱的控制方法 |
Families Citing this family (5)
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JP6430106B2 (ja) | 2013-08-26 | 2018-11-28 | 東芝ライフスタイル株式会社 | 消費電力出力装置 |
JP6932111B2 (ja) * | 2018-08-27 | 2021-09-08 | 日立グローバルライフソリューションズ株式会社 | 冷蔵庫 |
CN113494810B (zh) * | 2020-04-01 | 2022-09-23 | 青岛海尔电冰箱有限公司 | 冷藏冷冻装置及其照明控制方法 |
CN111503986A (zh) * | 2020-04-27 | 2020-08-07 | 合肥美菱物联科技有限公司 | 一种冰箱照明控制系统及其控制方法 |
WO2023033566A1 (ko) * | 2021-09-03 | 2023-03-09 | 엘지전자 주식회사 | 냉장고 및 가전기기 |
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JP2008232529A (ja) * | 2007-03-20 | 2008-10-02 | Matsushita Electric Ind Co Ltd | 冷蔵庫 |
JP2009299978A (ja) * | 2008-06-12 | 2009-12-24 | Mitsubishi Electric Corp | 冷蔵庫 |
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JP2003214744A (ja) * | 2002-01-23 | 2003-07-30 | Sanyo Electric Co Ltd | 冷蔵庫 |
JP2003262438A (ja) * | 2002-03-11 | 2003-09-19 | Sanyo Electric Co Ltd | 冷凍冷蔵庫 |
JP2008075925A (ja) * | 2006-09-20 | 2008-04-03 | Sharp Corp | 冷蔵庫 |
KR20080037269A (ko) * | 2006-10-25 | 2008-04-30 | 엘지전자 주식회사 | 냉장고용 조명장치 |
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JP2008232529A (ja) * | 2007-03-20 | 2008-10-02 | Matsushita Electric Ind Co Ltd | 冷蔵庫 |
JP2009299978A (ja) * | 2008-06-12 | 2009-12-24 | Mitsubishi Electric Corp | 冷蔵庫 |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104896870A (zh) * | 2015-07-08 | 2015-09-09 | 安庆市达东电子科技有限公司 | 一种冰箱运行状态的控制组件 |
CN109708424A (zh) * | 2018-12-07 | 2019-05-03 | 青岛海尔股份有限公司 | 一种保鲜冰箱的控制方法 |
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TW201135169A (en) | 2011-10-16 |
CN102893107B (zh) | 2015-02-25 |
JPWO2011086642A1 (ja) | 2013-05-16 |
JP5853163B2 (ja) | 2016-02-09 |
CN102893107A (zh) | 2013-01-23 |
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