JP2015114065A - Refrigerator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a refrigerator which exerts improved user friendliness and safety when opening a plurality of doors.SOLUTION: The refrigerator includes: a first storage chamber 2 having a first door 2a and a second door 2b; second storage chambers 3, 4 adjacent to the first storage chamber 2a; third doors 3a, 4a opening/closing the second storage chambers 3, 4; a door-opening device opening the first door 2a and the second door 2b; detection means 48a, 48b detecting driving instruction to the door-opening device; and door-opening/closing detection means detecting opening/closing state of the third doors 3a, 4a. When the driving instruction for serially opening the first door 2a and the second door 2b is detected by the detection means 48a, 48b, opening operation of one of the first door 2a and the second door 2b is stopped when the third doors 3a, 4a are opened during the opening operation of the other of the first door 2a and the second door 2b.

Description

  The present invention relates to a refrigerator.

  Background art in this technical field includes Japanese Patent No. 4457973 (Patent Document 1) and Japanese Patent No. 4991236 (Patent Document 2).

  Claim 1 of Patent Document 1 describes that “when the doors of the adjacent storage chambers are in an open state, the control means controls to stop the opening operation of the door opening means”.

  Further, claim 1 of Patent Document 2 states that “a plurality of doors closing the front opening of the storage chamber provided in the main body and a drive signal output by the user's operation corresponding to the predetermined door”. And a door opening device that opens and closes the predetermined door by a drive signal from the door opening switch, and at least one of the door switches that detects the opening / closing state of the predetermined door detects the opening of the door. When the door is open, reception of door opening switches corresponding to other doors is prohibited. "

Japanese Patent No. 4457973 Japanese Patent No. 4991236

  However, in patent document 1, it is the structure which opens a single door with a door opening means, and the structure at the time of opening a some door with a door opening means is not considered.

  Further, in Patent Document 2, after a drive signal for opening a plurality of doors is received from an opening switch before a certain door is opened, other doors are opened regardless of the open state of the certain door. Therefore, safety considerations are insufficient.

  Therefore, the present invention provides a refrigerator with improved usability and safety when opening a plurality of doors.

  The present application includes a plurality of means for solving the above-described problems. For example, a first storage chamber having a first door and a second door, and a first storage chamber adjacent to the first storage chamber. A second storage chamber, a third door for opening and closing the second storage chamber, a door opening device for opening the first door and the second door, and detecting a drive command to the door opening device And a door opening / closing detection means for detecting an open / closed state of the third door, and the detection means detects a drive command for sequentially opening the first door and the second door. When the third door is opened during the opening operation of one of the first door and the second door, the other door of the first door and the second door The opening operation is stopped.

  ADVANTAGE OF THE INVENTION According to this invention, the refrigerator which improved the usability and safety | security at the time of opening a some door can be provided.

It is a front view of the refrigerator in embodiment of this invention. It is a sectional side view which shows typically the AA cross section of FIG. It is a control block diagram of the refrigerator in the embodiment of the present invention. It is a flowchart which shows the operation | movement at the time of the single door opening input and multiple door opening input in embodiment of this invention. It is a figure which shows the detection switch arrange | positioned at the refrigerator compartment door in embodiment of this invention. It is a figure which shows the operation display part arrange | positioned at the refrigerator compartment door in embodiment of this invention. It is a figure which shows the position of the detection switch and operation display part which are arrange | positioned at the refrigerator compartment door in embodiment of this invention. It is a detection pattern which judges whether a door is opened independently in the embodiment of the present invention, and is a figure showing an example which one of a plurality of detection switches detected. It is a detection pattern which judges whether a door is opened independently in the embodiment of the present invention, and is a figure showing the example which two adjacent detection switches detected. It is a detection pattern which judges whether a door is opened independently in the embodiment of the present invention, and is a figure showing an example detected by three adjacent detection switches. It is a detection pattern which judges whether a door is opened independently in the embodiment of the present invention, and is a figure showing an example which all a plurality of detection switches detected. It is a detection pattern which judges whether the some door in embodiment of this invention is opened, Comprising: It is a figure which shows the example which three adjacent detection switches detected sequentially in one direction. It is a detection pattern which judges whether a plurality of doors are opened in an embodiment of the present invention, Comprising: It is a figure showing an example which three detection switches adjacent detected sequentially in the direction different from Drawing 7a. It is a detection pattern which judges whether the some door is opened in embodiment of this invention, Comprising: It is a figure which shows the example which two adjacent detection switches detected sequentially in one direction. It is a flowchart which shows the conditions which determine the single door open input and multiple door open input in embodiment of this invention. It is a figure which shows the detection operation of the detection switch in embodiment of this invention. It is a detection pattern which judges whether the some door is opened in embodiment of this invention, Comprising: It is a figure which shows the example which the detection switch of two places which are not adjacent detected simultaneously. It is a detection pattern for determining whether to open a plurality of doors in an embodiment of the present invention, and two adjacent detection switches and a detection switch not adjacent to the two detection switches are detected simultaneously. It is a figure which shows an example. It is a detection pattern which judges whether the some door in embodiment of this invention is opened, Comprising: It is a figure which shows the example detected simultaneously by two adjacent detection switches. It is a detection pattern which judges whether the several door in embodiment of this invention is opened, Comprising: It is a figure which shows the example which the detection switch of three adjacent locations detected simultaneously. It is a detection pattern which judges whether the some door is opened in embodiment of this invention, Comprising: It is a figure which shows the example which detected simultaneously the adjacent detection switch in several places. It is a detection pattern which judges whether the some door in embodiment of this invention is opened, Comprising: It is a figure which shows the example which all the some detection switches detected. It is a flowchart which shows the multiple doors sequential opening operation | movement in embodiment of this invention.

  Hereinafter, embodiments will be described with reference to the drawings.

  In each figure, common portions are denoted by the same reference numerals, and redundant description is omitted. Further, in the following description, the vertical and horizontal directions are based on the vertical and horizontal directions shown in FIG. 1, and the front and rear directions are based on the front and rear directions shown in FIG.

≪Overall configuration of refrigerator≫
First, before describing the door opening device according to the embodiment of the present invention, the overall configuration of a refrigerator including the door opening device according to the present embodiment will be described.

  FIG. 1 is a front view of a refrigerator in an embodiment of the present invention.

  As shown in FIG. 1, the refrigerator 1 of the present embodiment includes, from above, a refrigerating room 2, ice making rooms 3 and upper freezing rooms 4 arranged side by side, a lower freezing room 5, and a vegetable room 6. doing. In addition, as an example, the refrigerator compartment 2 and the vegetable compartment 6 are storage rooms in a refrigerator temperature zone of about 3 to 5 ° C. Further, the ice making room 3, the upper freezer room 4, and the lower freezer room 5 are storage rooms in a freezing temperature zone of approximately −18 ° C.

  The refrigerating room 2 is divided into left and right parts, so-called French-type refrigerating room doors 2a (first door) and refrigerating room doors 2b (second doors), which are spread in front (front side in FIG. 1). It has. The refrigerator compartment doors 2a and 2b rotate around the hinges 17a and 17b. In order to close the gap between the left and right refrigerator compartment doors 2a, 2b, a rotary partition 18 is provided along the side of the refrigerator compartment door 2a close to the refrigerator compartment door 2b. The configuration will be described in detail later.

  The ice making room 3, the upper freezing room 4, the lower freezing room 5, and the vegetable room 6 include a drawer type ice making room door 3a, an upper freezing room door 4a, a lower freezing room door 5a, and a vegetable room door 6a, respectively. . In the following description, left and right refrigerator compartment doors 2a and 2b, ice making compartment door 3a, upper freezer compartment door 4a, lower freezer compartment door 5a, and vegetable compartment door 6a are simply door 2a, door 2b, door, respectively. 3a, door 4a, door 5a, and door 6a.

  Further, the ice making chamber 3 and the upper freezing chamber 4 adjacent to the refrigerator compartment (first storage chamber) 2 may be referred to as a second storage chamber, and the ice making chamber door 3a and the upper freezing chamber door 4a may be referred to as the third storage chamber. May be referred to as the door. Further, the lower freezer compartment 5 and the vegetable compartment 6 may be referred to as a third storage compartment, and the lower freezer compartment door 5a and the vegetable compartment door 6a may be referred to as a fourth door.

  The refrigerator 1 includes door sensors (not shown) that detect the open / closed states of the doors 2a, 2b, 3a, 4a, 5a, and 6a, and the doors 2a, 2b, 3a, 4a, 5a, When a state in which it is determined that at least one of the doors 6a is open is continued for a predetermined time (for example, 1 minute or more), the buzzer 62 that notifies the user to that effect, the refrigerator compartment 2, and the upper freezing A temperature setter (such as a control panel 40 shown in FIG. 1 having a predetermined operation unit and a display unit) is provided for setting the temperature of the chamber 4 and the lower freezing chamber 5.

  The first door 2a is provided with a first door opening switch 48a, and the second door 2b is provided with a second door opening switch 48b.

  Moreover, the glass plate which is a light transmissive member is each arrange | positioned in the front surface of the door 2a, the door 2b, the door 3a, the door 4a, the door 5a, and the door 6a. The glass plate can be fixed using a structure that is supported by a frame member at each door end or a structure that is fixed to urethane foam inside the door.

  Next, FIG. 2 is a side sectional view schematically showing the AA section of FIG.

  As shown in FIG. 2, the outside of the refrigerator 1 and the inside of the refrigerator 1 are separated by a heat insulating box 10 formed by filling a foam heat insulating material (foamed polyurethane) between the inner box 10a and the outer box 10b. ing. Moreover, the heat insulation box 10 of the refrigerator 1 is mounted with a plurality of vacuum heat insulating materials 14.

  In the warehouse, a plurality of storage chambers arranged in different vertical directions in different temperature zones are adiabatically partitioned by heat insulating partition walls 11a and 11b. That is, the upper heat insulating partition wall 11a separates the refrigerating room 2 that is a refrigerating temperature zone storage room from the upper freezing room 4 and the ice making room 3 (see FIG. 1) that are refrigerating temperature zone storage rooms. . Further, the lower heat-insulating partition wall 11b separates the lower freezing room 5 that is a storage room in the freezing temperature zone and the vegetable room 6 that is a storage room in the refrigerating temperature zone.

  A plurality of door pockets 13 are provided on the inner side of the doors 2a and 2b. The refrigerator compartment 2 is partitioned into a plurality of storage spaces in the vertical direction by a plurality of shelves 12.

  In the upper freezer compartment 4, the lower freezer compartment 5, and the vegetable compartment 6, storage containers 4b, 5b, 6b are respectively provided behind the doors 4a, 5a, 6a provided in front of the respective storage compartments. The storage containers 4b, 5b, and 6b can be pulled out by placing a hand on a handle portion (not shown) of the doors 4a, 5a, and 6a and pulling it out toward the front side. Similarly, in the ice making chamber 3 shown in FIG. 1, a storage container (indicated by reference numeral 3b in FIG. 2) is provided behind the door 3a, and the handle 3 (not shown) of the door 3a is put on a hand and pulled out to the front side. Thus, the storage container 3b can be pulled out.

  As shown in FIG. 2, the doors 2a, 2b, 3a, 4a, 5a, and 6a are provided with door packings 15 around the doors 2a, 2b, 3a, 4a, 5a, and 6a. The inside of the storage space (the refrigerator compartment 2, the ice making compartment 3, the upper freezer compartment 4, the lower freezer compartment 5, and the vegetable compartment 6) is closed and sealed by closely adhering to the peripheral edge of the front opening of the refrigerator 1. This prevents the leakage of cold air from the storage space.

  As shown in FIG. 2, the cooler 7 is disposed in a cooler storage chamber 8 provided substantially at the back of the lower freezing chamber 5. The cooler 7 is configured by attaching a large number of fins (not shown) to the cooler pipe 7d so that heat can be exchanged between the refrigerant and the air in the cooler pipe 7d.

  Above the cooler 7, an internal fan 9 (for example, a motor-driven fan) is provided. The air cooled by heat exchange in the cooler 7 (hereinafter, this cooled low-temperature air is referred to as “cold air”) is blown into the refrigerator compartment air duct 22, the vegetable compartment air duct 25, and the ice making room by the internal fan 9. Via the duct 26a, the upper freezer compartment air duct 26b, and the lower freezer compartment air duct 27, it is sent to the storage rooms of the refrigerator compartment 2, the vegetable compartment 6, the ice making room 3, the upper freezer compartment 4, and the lower freezer compartment 5. It has become.

  Below the cooler 7, a defrost heater 35 that is a defrosting means is installed, and above the defrost heater 35, in order to prevent defrost water from dripping onto the defrost heater 35, An upper cover (not shown) is provided.

  The defrost water generated by the defrosting (melting) of the frost attached to the wall of the cooler 7 and the surrounding cooler storage chamber 8 flows into the gutter 32 provided at the lower part of the cooler storage chamber 8. It reaches the evaporating dish 34 disposed in the machine room 50 via the drain pipe 33, is evaporated by the heat of the compressor 51 and the condenser (not shown), and is discharged outside the refrigerator 1. .

  As shown in FIG. 2, a door opening device 60 is provided adjacent to the front surface of the upper surface of the ceiling wall of the refrigerator 1, that is, the doors 2 a and 2 b. The opening device 60 includes projecting members 61a and 61b corresponding to the first door 2a and the second door 2b, respectively. The protruding members 61a and 61b operate so as to protrude toward the first door 2a and the second door 2b from the state housed in the main body of the opening device 60, and the first door 2a is projected by the protruding member 61a. By pushing the vicinity of the upper end of the second door and pushing the vicinity of the upper end of the second door 2b by the projecting member 61b, the doors are respectively pushed open.

  In addition, the 1st door opening switch 48a and the 2nd door opening switch 48a which were each provided in the front surface of the 1st door 2a and the 2nd door 2b are means to detect the drive command of the door opening apparatus 60. Therefore, in the following, it may be referred to as “detecting means”.

  As shown in FIG. 2, on the upper surface side of the ceiling wall of the refrigerator 1, a control board 41, which is a control unit on which a CPU, a memory such as a ROM or a RAM, an interface circuit, and the like are mounted as a control unit. The refrigerator 1 includes a refrigerator temperature sensor 44 that detects the temperature of the refrigerator compartment 2, a vegetable compartment temperature sensor 45 that detects the temperature of the vegetable compartment 6, a freezing temperature zone (the ice making chamber 3, the upper freezer compartment 4, and the lower freezer compartment). Temperature sensors such as a freezer temperature sensor 46 that detects the temperature of 5) and a cooler temperature sensor 47 that detects the temperature of the cooler 7 are provided, and the detected temperature is input to the control board 41. .

  The control board 41 includes a door sensor (not shown) that detects the open / closed state of the doors 2a, 2b, 3a, 4a, 5a, and 6a, and the control panel 40 (see FIG. 1) provided on the door 2a. The left opening switch 48a (see FIG. 1) provided on the doors 2a and 2b and the right opening switch 48b (see FIG. 1) are connected.

  The control board 41 individually drives the ON / OFF of the compressor 51 and the control of the rotational speed, the refrigeration temperature zone cool air control means 20 and the refrigeration temperature zone cool air control means 21 by the program previously installed in the ROM. Control of each drive motor (not shown), control of ON / OFF of internal fan 9 and rotation speed, control of ON / OFF of external fan (not shown), rotation speed, etc., notification of door open state The operation of the entire refrigerator can be controlled by controlling ON / OFF of an alarm (not shown) to be performed, operation of the door opening device 60, and the like.

  FIG. 3 is a control block diagram of the refrigerator. In the figure, 41 is a control board, and inputs of door opening switches such as a first door opening switch 48a, a second door opening switch 48b, a lower freezer compartment door opening switch 48c, a vegetable room door opening switch 48d, and ice making. It controls the input of each door opening / closing detection means such as the chamber door open detection switch 3b and the upper freezer compartment door open detection switch 4b, the operation command to the door opening device 60, the output to the buzzer 62, and the like. 40 is a control panel installed on the surface of the first door 2a of the refrigerator 1, an input unit 40b for switching a cooling temperature, a quick freezing operation stop, and the like, and a set cooling temperature and a quick freezing operation state. The display unit 40a indicates the open state of each door.

  The front surfaces of the first door 2a and the second door 2b are each composed of a light-transmitting glass plate, and a capacitive touch detection switch is brought into contact with or close to a predetermined position on the back surface of the glass plate. It is arranged. With this configuration, the functions of the refrigerator described above can be switched by the user touching from the front surface of the glass plate within the detection range of the touch detection switch.

≪Door opening control flow≫
FIG. 4 is a flowchart showing the operation at the time of single door opening input and multiple door opening input in the embodiment of the present invention. That is, it is a flowchart showing an example of an operation when the refrigerator door (first door 2a, second door 2b) is opened by the opening device 60.

  In input waiting S100 of the door opening switch (detection means) which is the first door opening switch 48a and the second door opening switch 48b, the input of the first door opening switch 48a or the second door opening switch 48a is waited for. . If there is a switch input, that is, detection by the detection means, it is determined whether or not the door opening device 60 can operate to open the refrigerator compartment door. For example, the ice making chamber door 3a adjacent to the first door 2a is being opened to take out ice, or the upper freezing chamber 4 adjacent to the second door 2b is being opened to take out stored items. When there is an input from the door opening switch (the first door opening switch 48a or the second door opening switch 48a), the refrigerator door (the first door 2a, the second door 2b) ) Is not preferable in terms of safety. Therefore, while the ice making room door 3a and the freezer upper door 4a adjacent to the refrigerating room door (first door 2a, second door 2b) are open, the refrigerating room door (first door 2a, second door). The opening operation by the opening device 60 of 2b) is prohibited. Further, when the opening operation by the door opening device 60 is prohibited, to indicate to the user that the operation of the door opening switch (the first door opening switch 48a or the second door opening switch 48a) is accepted but the opening operation is not performed. In step S109, the buzzer 62 is output (for example, 0.1 [s] ON, 0.1 [s] OFF, 0.1 [s] ON). Note that not only a buzzer but also a notification means of any configuration that can be recognized by the user, such as a notification by a voice guide, a notification by an illumination unit, a notification by the display unit 40a of the control panel 40, and the like can be adopted.

  If the door opening operation is possible, it is determined in S103 whether to open only the door that has been switched on or to open both doors based on the switch input, that is, the content detected by the detection means. Details of the method will be described later). If it is determined that an input for opening the door alone is detected, the buzzer 62 is output (for example, 0.1 [s] ON) in S104 to indicate to the user that the door is opened alone, and S106 is displayed. Only the door (for example, the first door 2a when the input of the first door opening switch 48a is detected) is opened, and the process returns to the waiting for the door opening switch input in S100 again. On the other hand, if it is determined in S103 that an input for opening a plurality of doors (first door 2a and second door 2b) is detected, a buzzer 62 indicating that the plurality of doors are opened is output in S105. (For example, 0.8 [s] ON), and after opening the door (for example, the first door 2a when the input of the first door opening switch 48a is detected) that is first input in S106, the process proceeds to S108. Then, the other door (second door 2b) is opened, and the process again returns to S100 door opening switch input waiting.

  In this manner, before opening the refrigerator compartment door, the user is informed in advance of the difference in how the buzzer 62 sounds, whether the door is opened alone or both doors are opened. Therefore, the user can determine the content of the opening operation from the contents of the notification, and even if an operation input different from the user's intention is detected, the user can recognize in advance that the door opening operation is entered. Can improve safety.

  In addition, as an alerting | reporting means, the illumination means (not shown) arrange | positioned at the display part 40a of the control panel 40, the illumination means (not shown) installed in each of the 1st door 2a and the 2nd door 2b. The user may be notified.

≪Configuration of door opening detection means≫
Next, detection means for opening a door alone or opening a plurality of doors will be described.

  FIG. 5a is a diagram showing a detection switch arranged on the refrigerator door according to the embodiment of the present invention. That is, it is a figure which shows arrangement | positioning of each detection switch each arrange | positioned in the part corresponding to the 1st door opening switch 48a and the 2nd door opening switch 48b.

  FIG. 5 b is a diagram illustrating an operation display unit disposed on the refrigerator compartment door according to the embodiment of the present invention. In other words, the operation display units respectively displayed on the surfaces of the first door 2a and the second door 2b to indicate the positions (operating positions) of the first door opening switch 48a and the second door opening switch 48b, respectively. FIG.

  FIG. 5 c is a diagram illustrating the positions of the detection switch and the operation display unit arranged on the refrigerator compartment door according to the embodiment of the present invention. That is, it is a schematic view in which the operation switch 201 and the positions of the detection switches a, b, c, and d are overlapped and the detection switch is seen through.

  In FIG. 5a, the arrangement of each detection switch arranged in the first door opening switch 48a will be described. The second door opening switch 48b has a configuration that is arranged symmetrically with the first door opening switch 48a, and a description thereof will be omitted.

The door opening switch 48 (the first door opening switch 48a or the second door opening switch 48b, which is described as the first door opening switch 48a in FIGS. 5a to 5c), which is a detection means, is an electrostatic capacitance type. The four touch switches (detection switch a to detection switch d) are arranged in a straight line on the substrate, and are arranged side by side in the left-right direction with the first door 2a being assembled.
The front surface of the first door 2a is made of a light transmissive glass plate, and a substrate having detection switches a, b, c, and d is disposed on the back surface of the glass plate.

  Note that the arrangement of the detection switches a, b, c, and d is not limited to the left-right direction, and may be a configuration in which the first door 2a is installed in the up-down direction or the oblique direction. Further, the configuration is not limited to the linear arrangement on the substrate, but may be a curved shape or a parallel arrangement of top and bottom or left and right. The first door opening switch 48a and the second door opening switch 48b are not limited to the left-right symmetrical arrangement, and one detection switch is arranged in the left-right direction, and the other detection switch is plural. An asymmetrical arrangement, such as a configuration arranged in the vertical direction, may be used. Furthermore, the configuration is not limited to the doors arranged on the left and right, and may be configured such that the detection switches are arranged on the doors arranged on the top and bottom. Further, the configuration is not limited to the configuration in which the detection switch is disposed on the rotary door, and the configuration in which the detection switch is disposed on the drawer-type door may be employed.

  As shown in FIG. 5b, the front surface of the glass plate constituting the first door 2a is operated on the front surface facing the detection switches a, b, c, d in order to make the user recognize the location of the detection means. A display unit 201 is arranged. As shown in FIG. 5c, the operation display unit 201 has an outer shape that almost covers the front of the detection switches a, b, c, and d, or a shape arranged slightly inside the detection switches a, b, c, and d. is there.

  Here, when the operation display unit 201 is arranged larger than the area of the detection switches a, b, c, and d, the operation display unit 201 is included in addition to the detection range of the detection switches a, b, c, and d. If the detection switches a, b, c, and d are not detected, there is a risk of misunderstanding that they are malfunctioning. Therefore, in the present embodiment, the operation display unit 201 is disposed within the detection range of the detection switches a, b, c, and d.

  The operation display unit 201 displays the front or back surface of the light transmissive glass plate constituting the front surface of the first door 2a in a state visible from the front surface of the glass plate by processing such as silk printing, screen printing, or resist. ing.

  In the present embodiment, the operation display unit 201 has a horizontally long line shape having a predetermined width. However, the operation display unit 201 is not limited to this, and is vertically long, circular, dot, or character according to the arrangement of the detection switches a, b, c, and d. Alternatively, any shape such as a symbol can be adopted.

  In addition, the operation display unit 201 can adopt a configuration that is always visible from the outside, or a configuration that is not visually recognized when not being operated but is raised by illuminating with illumination means during operation.

  Since the operation display unit 201 is at least visible from the front of the refrigerator compartment door (first door 2a) during operation, the user opens the door using the operation display unit 201 as a mark. In addition, the 2nd door opening switch 48b arrange | positioned at the 2nd door 2b is also the same structure.

≪Single door opening detection≫
Next, FIG. 6a, FIG. 6b, FIG. 6c, and FIG. 6d show detection patterns when the door is opened alone. FIG. 6 a is a detection pattern for determining whether to open a door alone in the embodiment of the present invention, and is a diagram illustrating an example detected by one of a plurality of detection switches. FIG. 6b is a detection pattern for determining whether to open the door alone in the embodiment of the present invention, and is a diagram illustrating an example detected by two adjacent detection switches. FIG. 6c is a detection pattern for determining whether to open the door alone in the embodiment of the present invention, and is a diagram illustrating an example detected by three adjacent detection switches. FIG. 6d is a detection pattern for determining whether to open the door alone in the embodiment of the present invention, and is a diagram illustrating an example in which all of the plurality of detection switches are detected.

  Any one of the detection switches a, b, c, and d or a plurality of adjacent detection switches detect an input that is longer than a predetermined time (for example, 0.08 [s]) and less than a predetermined time (for example, 1 [s]). If the detection of opening a plurality of doors to be described later is not established, the door on the side where the input is performed is opened alone. The reason why the predetermined time (for example, 0.08 [s]) or longer is used to prevent malfunction due to chattering or noise when the detection switch is input. Also, the reason why the time is less than a predetermined time (for example, 1 [s]) is that the input when the user has unintentionally touched at least one of the detection switches a, b, c, and d for a long time is invalidated. It is what. FIG. 6a shows a case where only the detection switch a is detected. In FIG. 6b, the case where the detection of the adjacent detection switch a and the detection switch b occurs simultaneously is shown. 6c and 6d show a case where a detection switch is touched over a wide range with an elbow or an arm instead of a fingertip, and FIG. 6c shows an example where adjacent detection switches b, c, d detect simultaneously, FIG. 6d shows an example in which adjacent detection switches a, b, c, and d detect simultaneously. In any of the cases shown in FIGS. 6a, 6b, 6c, and 6d, it is detected that the opening of the door alone is input. In addition, when all the detection switches are detecting like FIG. 6d, it may be judged that the user has input unintentionally and the input may be invalidated.

≪Multiple door opening detection≫
Next, FIGS. 7 a, 7 b, and 7 c are diagrams for explaining detection patterns of detection means (detection switches a, b, c, and d) when a plurality of doors are opened. FIG. 7A is a detection pattern for determining whether to open a plurality of doors in the embodiment of the present invention, and is a diagram illustrating an example in which three adjacent detection switches are sequentially detected in one direction. FIG. 7b is a detection pattern for determining whether to open a plurality of doors in the embodiment of the present invention, and is a diagram showing an example in which three adjacent detection switches are sequentially detected in a different direction from FIG. 7a. . FIG. 7c is a detection pattern for determining whether to open a plurality of doors in the embodiment of the present invention, and is a diagram illustrating an example in which two adjacent detection switches are sequentially detected in one direction.

  7a to 7c show an operation in which the user moves his / her finger to trace the detection switches a, b, c and d in the arrangement direction (configuration in which the detection switches are sequentially detected in the arrangement direction). Here, the operation is not limited to the expression of tracing, as long as the user moves the finger or hand in a predetermined direction after contacting the finger or hand with the glass plate on the front of the door or bringing it close to a predetermined distance. Suppose that it is included in the detection pattern of this embodiment. For example, a flick operation or a swipe operation in which any part of the operation display unit 201 is tapped with a finger or hand and then moved within a predetermined range without releasing the finger or hand is included. Moreover, the operation | movement which blocks the front of one part of the operation display part 201 with a finger | toe or a hand, and moves a finger | toe or a hand within a predetermined range as it is is included.

  In FIG. 7a, when three or more detection switches adjacent in the order of the detection switch b and the detection switch c in one direction (rightward) from the detection switch a sequentially detect the input, it is determined that there is an input. A plurality of doors (first door 2a and second door 2b) are opened simultaneously or sequentially.

  FIG. 7b shows an example in which the detection switch b and the detection switch a are operated in this order from the detection switch c in the direction opposite to the one direction described above (leftward). Also in this case, since three or more adjacent detection switches sequentially detect inputs, it is determined that there is an input, and a plurality of doors (first door 2a and second door 2b) are simultaneously or Release sequentially.

  FIG. 7c shows a case where the switches b to c are sequentially detected. In this case, since the detection distance is short and the user intends to open a single door, it is assumed that the operating finger or hand has slipped or the position has shifted. It is determined that the input to open the door is invalid. And the door (when the first door opening switch 48a detects the first door 2a, the second door opening switch 48a or the second door opening switch 48a) is detected. When the door opening switch 48b detects, the second door 2b) is opened alone.

  The reason why the number of detection switches requiring detection among the plurality of detection switches a, b, c, and d is at least three is that operability is taken into consideration. That is, usability is improved by recognizing that there is an input without having to trace all of the operation display unit 201 facing the plurality of detection switches a, b, c, and d with a finger. This is to make it happen. On the other hand, when priority is given to prevention of erroneous operation, a configuration may be adopted in which when all of the plurality of detection switches a, b, c, and d are detected, it is recognized that there are a plurality of door opening inputs.

≪Single / open opening judgment flow≫
Next, a control flow for determining whether to open a door alone or to open a plurality of doors simultaneously or sequentially will be described with reference to FIG. FIG. 8 is a flowchart showing conditions for determining the single door opening input and the multiple door opening input in the embodiment of the present invention. That is, depending on the user's way of operating the switch, an operation of opening the door alone or an operation of moving a finger or hand so as to trace the arrangement direction of the detection switches a, b, c, d (each detection switch This is a flowchart showing an example of determining whether or not an operation has been performed in which the doors are sequentially detected in the arrangement direction and a plurality of doors are opened).

  First, in the door open switch (detection means) input wait (S200), the input of the first door open switch 48a or the second door open switch 48a is waited for. When switch input, that is, detection by the detection means is detected (YES in S201), each variable is initialized (S202). Here, each variable means timer A (time for preventing malfunction due to chattering or noise at the time of switch input described above, 0.08 [s] in the embodiment), timer B (long time, detection switches a to d). The time for invalidating the input when at least one of the touches is touched, in the embodiment, 1 [s]) is set. In addition, the adjacent switch simultaneous detection count for determining that adjacent detection switches have simultaneously detected is initialized to zero. If all switch inputs are turned off (NO in S204) before the timer A time expires (in the embodiment, 0.08 [s] has elapsed) (NO in S204), chattering at the time of switch input or It is determined that the operation is erroneous due to noise or the like, and the operation is confirmed (S209). When the switch input continues for the timer A time or longer (YES in S204), it is determined whether or not adjacent switch simultaneous detection for detecting simultaneous input in the order in which the adjacent detection switches are arranged has occurred (S207). As a result, all the switch inputs are turned off (finger or hand is released) before the simultaneous detection of adjacent switches (NO in S207) and before the timer B time (1 [s] in the embodiment) elapses (NO in S208). When the condition (YES in S205) is satisfied, the operation of opening the door alone is determined (S210).

  Then, the door having the operated door opening switch is opened by the door opening device 60 (when the first door opening switch 48a is operated, the first door 2a and the second door opening switch 48a are operated). In the case of the second door 2b).

  When the timer B time (1 [s] in the embodiment) has elapsed (when the detection switch has been detected for a long time) (YES in S208), it is determined that the operation is not intended, and the erroneous operation is determined (S209).

  When it is determined that there is simultaneous detection of adjacent switches that simultaneously detect adjacent detection switches in the arrangement direction (YES in S207), timer C (time limit for detection switches a to d, 5 [s] in the embodiment) is set. (S213), the number of simultaneous detections of adjacent switches is updated (add 1) (S214). At this time, since the adjacent switch simultaneous detection count = 1, the determination of the adjacent switch simultaneous detection count (two or more in the embodiment) in S215 is NO. Until there is a new switch input (while S211 is NO), all switch inputs are turned off (finger or hand is released) (YES in S216) or the timer C expires (in the embodiment, 5 [ s] Elapsed) (YES in S217), the operation of opening the door independently is determined (S210).

  When there is a new switch input (YES in S211), in S212, it is determined whether or not adjacent switch simultaneous detection in which adjacent switches are simultaneously detected in the arrangement direction has occurred. Here, a case where an input to an undetected detection switch adjacent to a detection switch that has already detected an input among a plurality of detection switches is detected. When there is no simultaneous detection of adjacent switches (NO in S212), the door opening by itself is confirmed (S210).

  If there is simultaneous detection of adjacent switches (YES in S212), timer C (the input time limit of detection switches a to d at the time of switch order detection, 5 [s] in the embodiment) is set again (S213). The switch simultaneous detection count is updated (add 1) (S214). Since the adjacent switch simultaneous detection count = 2 at this time, the determination of the adjacent switch simultaneous detection count (two or more in the embodiment) in S215 is YES, and simultaneous or sequential opening of a plurality of doors is determined (S218).

  Also, if you want to cancel the door opening input, after moving the detection switches in one direction, the detection switch is moved back to the opposite direction, that is, the traced position. Follow the action. Thereby, you may comprise so that it may determine with the input having been canceled.

≪Detection operation by detection switch≫
Next, the detection operation by the detection switch will be described based on FIG. FIG. 9 is a diagram illustrating a detection operation of the detection switch according to the embodiment of the present invention. In pattern 1, only switch a is ON. When the finger is moved in the right direction in the figure (pattern 2), the detection switch b is newly turned on, both the detection switch a and the detection switch b are turned on, that is, adjacent detection switches are simultaneously turned on. When the finger is further moved to the right in the figure (pattern 3), only the detection switch b is turned on.

  When the finger is further moved to the right in the figure (pattern 4), the detection switch c is newly turned on, the detection switch b and the detection switch c are turned on, that is, the adjacent detection switches are simultaneously turned on again. At this point, opening of multiple doors is confirmed. After the pattern 3, when the finger moves in the reverse direction (left direction in the figure) and returns to the pattern 1 again, the movement direction of the detection switch input is not “sequential”, which is not established. Even in the right direction (forward direction), only the detection switch c is turned on without passing through the pattern 4 (pattern 5), and both the detection switch c and the detection switch d are turned on (pattern 6). ), And when three or more adjacent detection switches are turned on (pattern 7), etc., the detection of the detection switches is not “sequential”, and therefore, the input of a plurality of doors is not established. In FIG. 8, the new switch input is not determined before S207 as in S212, considering the case where adjacent switch simultaneous detection has occurred from the beginning.

≪Door opening operation and detection switch detection operation≫
The order in which the plurality of doors open may be set differently depending on the direction in which the user traces the detection means directly or in the vicinity with a finger or hand (direction detected by the plurality of detection switches sequentially). For example, as shown in FIG. 7a, when the detection switch detects sequentially from one end side to the other end side (from left to right), the first door 2a (left refrigerator compartment door) is opened, and then Open the second door 2b (right refrigerator door). On the other hand, as shown in FIG. 7b, when the detection switch detects sequentially from the other end side to the one end side (from right to left), the second door 2b (right refrigerator door) is opened and then the second Open one door 2a (left refrigerator door).

  That is, the arrangement of the detection switches a, b, c, d in the left-right direction constituting the detection means 48 and the arrangement of the left and right rotary doors (first door 2a, second door 2b) are made to correspond to each other. It is possible to select the opening order of the doors by an operation input that traces the detection means 48 in the direction from the door side to be opened to the door side to be opened later.

  For example, when the first door 2a is opened by first operating the first door opening switch 48a and then the second door 2b is to be opened, the first door opening switch 48a is traced from left to right. (See FIG. 7a). In addition, when the first door 2a is opened after the second door 2b is opened by operating the first door opening switch 48a, the first door opening switch 48a is traced from right to left. (See FIG. 7b).

  On the other hand, when the first door 2a is opened first and then the second door 2b is opened by operating the second door opening switch 48b, the second door opening switch 48b is similarly changed from the left to the right. (See FIG. 7a). Similarly, when the user wants to open the first door 2a after opening the second door 2b first by operating the second door opening switch 48b, the second door opening switch 48b is changed from right to left. Operate by tracing (see FIG. 7b).

  With this, regardless of the user's dominant hand or the positional relationship between the user and the refrigerator, it is possible to select whether to open one of the plurality of doors alone or to open the plurality of doors with a single operation. When opening a plurality of doors, the order of opening the plurality of doors can be selected, and operability with improved usability can be obtained.

≪Other examples of multiple door opening detection≫
10a, 10b, 10c, 10d, 10e, and 10f are diagrams for explaining an example of the operation of another detection switch when a plurality of doors are opened. FIG. 10 a is a detection pattern for determining whether to open a plurality of doors in the embodiment of the present invention, and is a diagram illustrating an example in which two non-adjacent detection switches are simultaneously detected. FIG. 10b is a detection pattern for determining whether to open a plurality of doors in the embodiment of the present invention, and includes two adjacent detection switches and detection switches that are not adjacent to the two detection switches. It is a figure which shows the example detected simultaneously. FIG. 10c is a detection pattern for determining whether to open a plurality of doors according to an embodiment of the present invention, and is a diagram illustrating an example in which two adjacent detection switches detect simultaneously. FIG. 10d is a detection pattern for determining whether to open a plurality of doors in the embodiment of the present invention, and is a diagram illustrating an example in which three adjacent detection switches are detected simultaneously. FIG. 10e is a detection pattern for determining whether to open a plurality of doors in the embodiment of the present invention, and is a diagram illustrating an example in which adjacent detection switches are detected simultaneously at a plurality of locations. FIG. 10f is a detection pattern for determining whether to open a plurality of doors in the embodiment of the present invention, and is a diagram illustrating an example in which all of the plurality of detection switches are detected.

  FIGS. 10a, 10b, and 10c show operations for simultaneously detecting two detection switches among a plurality of detection switches a, b, c, and d. When detection switches that are not adjacent to each other detect an input for a predetermined time (for example, 0.5 [s]) or less than a predetermined time (for example, 1 [s]), an operation in which two detection switches are input simultaneously is effective. Judge.

  As shown in FIG. 10a, when the inputs of the detection switch a and the detection switch c are detected across the detection switch b, it is determined that two detection switches are input simultaneously. In this case, a plurality of doors are opened simultaneously or sequentially.

  Similarly, in FIG. 10b, since the detection switches a, c, and d detect the detection switch b with no input, it is determined that two detection switches are input at the same time, and a plurality of doors are simultaneously opened. Or open sequentially.

  FIGS. 10c and 10d show a case where a plurality of adjacent detection switches continuously detect inputs, such as detection switch a, detection switch b, and detection switch c. In this case, since it is assumed that the elbow or the like touches the detection switch without the intention of the user, it is determined that the input of the opening operation of the plurality of doors is invalid. In this case, the door having the detecting means that detects the input is opened alone, or the door is also prohibited from being opened alone in consideration of safety.

  FIG. 10e shows a state where all four detection switches have been detected. As shown in FIG. 10f, it is assumed that there is an input that is unintentionally touched by an arm or the like. The input of the door opening operation is determined to be invalid. Also in this case, the door having the detecting means that detects the input is opened alone, or the door is prohibited from being opened alone in consideration of safety.

  Although not shown in the drawing, as another operation of the detection switch when a plurality of doors are opened, multiple detections by a single detection switch may be adopted. This is because when a single detection switch detects an input for a predetermined time (for example, 0.3 [s]) a plurality of times (for example, 0.3 [s]) within a predetermined time (for example, 1 [s]), a plurality of input operations It is an operation to determine that In this case, the cost can be reduced because only one detection switch is required for the detection means.

In addition, when the detection means composed of a single detection switch is arranged on any one of a plurality of doors and there is a single input, the door provided with the detection means is opened independently, and It is also possible to open a door that does not have a detection means when there is an input for a certain time, and open multiple doors simultaneously or sequentially if a different input (for example, a long press input for a predetermined time) is detected. It is.
In this case, it is not necessary to provide a detection means for each door, and the cost can be further reduced.

≪Sequential opening of multiple doors≫
Next, an operation when sequentially opening a plurality of doors will be described with reference to FIG. FIG. 11 is a flowchart for sequentially opening a plurality of doors in the embodiment of the present invention.

  In this embodiment, the detection input 48a (or detection means 48b) which detects the drive command to the door opening device 60 detects the opening input with respect to both the 1st door 2a and the 2nd door 2b which are refrigerator compartment doors. In this case, the first door 2a and the second door 2b are opened sequentially. That is, after opening one of the first door 2a and the second door 2b, the other door is opened. In this case, the first door 2a and the second door 2b are adjacent doors, but both the first door 2a and the second door 2b closing the first storage chamber 2 from the user are opened. Since the input is accepted, the opening operation of the first door 2a and the second door 2b is continued.

  On the other hand, when the opening input of both the first door 2a and the second door 2b is received and one of the first door 2a and the second door 2b is opened, the first storage chamber When the third door (ice making room door 3a or upper freezing room door 4a) of the second storage room (ice making room 3 or upper refrigeration room 4) adjacent to (refrigeration room 2) is opened, the first door Of the 2a and the second door 2b, the door to be opened next is not opened.

First, in any one of the above-described configurations, the detection unit 48a (or the detection unit 48b) sequentially waits for detection of an opening operation until the detection unit 48a (or the detection unit 48b) detects the opening input (step S300 in FIG. 11).
When a plurality of door opening inputs are detected while waiting for sequential opening operation detection (S300), a second storage room (ice-making room 3 or 2) adjacent to the first storage room (refrigeration room 2) from which doors are to be opened is detected. The open / close state of the third door (the ice making room door 3a or the upper freezing room door 4a) of the upper refrigerating room 4) is determined (step S301). This determination is based on a detection signal of a door open / close detection means (ice making chamber door open detection switch 3b or upper freezer compartment door open detection switch 4b) provided in the third door (ice making chamber door 3a or upper stage freezing room door 4a). Judgment. When the third door (the ice making chamber door 3a or the upper freezer compartment door 4a) has been opened by the door opening / closing detection means (NO in step S301), the process sequentially returns to waiting for the opening operation (step S300).

  If neither the ice making room door open detection switch 3b nor the upper freezer compartment door open detection switch 4b is opened (YES in step S301), the first door 2a is opened (S302). In FIG. 11, the first door 2a is opened first. However, the present invention is not limited to this, and the second door 2b may be opened first. From either the detection means 48a or the detection means 48b. The order of opening can be changed as appropriate depending on whether an input operation for opening both doors has been performed.

  When the opening operation (step S302) of the first door 2a (or the second door 2b) is completed, before the opening operation of the second door 2b is performed, the ice making chamber door open detection switch 3b and the upper freezer compartment door are opened. If the detection state of the detection switch 4b is judged and the third door (the ice making chamber door 3a or the upper freezer compartment door 4a) is opened (NO in step S303), the second door 2b (or the first door 2a) is opened. ) Is not performed and the process returns to waiting for the opening operation detection (step S300). If neither the ice making room door open detection switch 3b nor the upper freezer compartment door open detection switch 4b detects the opening of the third door (the ice making room door 3a and the upper freezing room door 4a) (YES in step S303), The opening operation (step S304) of the second door 2b (or the first door 2a) is performed. When the opening operation (step S304) of the second door 2bb (or the first door 2a) is completed, the process again returns to waiting for the opening operation detection (step S300).

  Moreover, the open / close state of the fourth door (lower freezer compartment door 5a or vegetable compartment door 6a) of the third storage compartment (lower freezer compartment 5 or vegetable compartment 6) not adjacent to the first storage compartment (refrigerated compartment 2) Is not judged in the stage of step S301 and step S303 because it is not a storage room adjacent to the first storage room 2. That is, when one of the first door 2a or the second door 2b of the first storage room (refrigeration room 2) is opened by the door opening device 60, the third storage room (the lower freezing room 5 or Even if the fourth door (lower freezer compartment door 5a or vegetable compartment door 6a) of the vegetable compartment 6) is opened, the opening operation of the other of the second door 2b or the first door 2a is continued. This is a third storage room (lower freezing room 5 or vegetable room 6) not adjacent to the door (first door 2a or second door 2b) of the first storage room 2 to be opened by the opening device 60. ) Door (lower freezer compartment door 5a or vegetable compartment door 6a), it is assumed that the position of the finger operated by the user is away from the first door 2a or the second door 2b. This is because the opening operation by the door opening device 60 is prioritized and there is no trouble, and the usability is improved in consideration of safety.

  Thus, the first storage chamber having the first door and the second door, the second storage chamber adjacent to the first storage chamber, and the third storage chamber for opening and closing the second storage chamber. A door, a door opening device for opening the first door and the second door, a detecting means for detecting a drive command to the door opening device, and a door opening / closing for detecting an open / closed state of the third door Detecting means, and when the detection means detects a drive command for sequentially opening the first door and the second door, opening one of the first door and the second door When the third door is opened during the operation, the opening operation of the other door of the first door and the second door is stopped. As a result, if the door of the adjacent storage room is opened during the door opening operation by the door opening device, the user forgets to open the door sequentially or the doors are opened sequentially. Since it is assumed that the user has not noticed that the opening operation by the door opening device is stopped, the usability and safety can be improved.

  A third storage chamber that is not adjacent to the first storage chamber; and a fourth door that opens and closes the third storage chamber. The first door and the second door are sequentially opened. The first door even when the fourth door is opened during the opening operation of either the first door or the second door. And the opening operation of the other door of the second door is continued. Thereby, usability can be improved in consideration of safety.

  Next, when the first door 2a and the second door 2b of the first storage room (refrigeration room) 2 are sequentially opened by the opening device 60, the third storage that is not adjacent to the first storage room 2 is performed. When the door open switch (lower freezer compartment door open switch 48c or vegetable compartment door open switch 48d) of the room (lower freezer room 5 or vegetable room 6) is operated, the fourth door (lower freezer room) of the third storage room The opening operation of the first door 2a and the second door 2b of the first storage chamber 2 is prioritized over the opening operation of the chamber door 5a or the vegetable room door 6a). This is because the opening device 60 that opens the first door 2a and the second door 2b is driven by a common electric element, and the fourth door (lower freezer compartment door 5a or vegetable compartment door 6a) is illustrated. It is because it opens by the 4th door opening device which has an individual electric element which does not.

  That is, when there is a fourth door opening command in the middle of the operation of sequentially opening the first door 2a and the second door 2b with the opening device 60, a separate second opening of the fourth door is performed. Rather than switching the drive to the four door opening device, priority is given to the sequential opening operation of the first door 2a and the second door 2b in the opening device 60 driven by a common electric element. The door opening device is not driven or is driven after the opening of the door opening device 60 is completed, so that the drive current is not frequently switched more than necessary, and the door opening operation is efficiently performed. To do.

  Further, during the operation of opening one of the first door 2a and the second door 2b alone by the opening device 60, the first door 2a and the second door 2b are detected from the detection means 48a or the detection means 48b. The opening command for the other door and the opening command for the fourth door (the lower freezer compartment door 5a or the vegetable compartment door 6a) from the lower freezer compartment door open switch 48c or the vegetable compartment door open switch 48d are simultaneously or within a predetermined time. If it is, the opening command for the other door of the first door 2a and the second door 2b is given priority. This is because the door opening device 60 is driven by a common electric element, so driving the door opening device 60 as it is to drive a separate fourth door opening device that opens the fourth door. This is because the door opening operation is efficiently performed by switching the drive current not frequently. In this case, it is possible to adopt a configuration in which the fourth door opening device is not driven or is driven after the driving of the door opening device 60 is completed.

  According to the present invention described in the above embodiments, the following effects can be further achieved.

  That is, a plurality of doors, a door opening device that opens the doors, and a detection unit that detects a drive command to the door opening device, the detection pattern of the detection unit is one of the plurality of doors The case where the door is opened independently and the case where the plurality of doors are opened simultaneously or sequentially are set differently. Thereby, since it is possible to select whether to open the door alone or to open a plurality of doors with a single operation, a refrigerator with high usability can be provided.

  Further, the detection means has a configuration in which a plurality of detection switches are arranged side by side, and when any of the plurality of detection switches is detected, the door opening device opens any of the plurality of doors independently. When the plurality of detection switches sequentially detect in the direction in which the plurality of detection switches are arranged, the plurality of doors are simultaneously or sequentially opened by the door opening device. As a result, the user can select whether to open the door alone or to open a plurality of doors with a single operation by simply changing the input operation to the detection means, so that a refrigerator with high usability can be provided.

  Further, the order in which the plurality of doors are opened by the door-opening device according to the case in which the plurality of detection switches are sequentially detected in one direction and the case in which the detection switches are sequentially detected in the opposite direction. To be different. Accordingly, the user can open the plurality of doors by selecting the opening order of the plurality of doors by a simple operation.

  The detection means opens the plurality of doors simultaneously or sequentially when detecting a plurality of inputs in a predetermined time. Thereby, even when the detection means is constituted by a single detection switch, it is possible to select whether the door is opened individually or opened.

  Further, the detection means has a configuration in which a plurality of detection switches are arranged side by side, and when the detection switches other than the adjacent detection switches are simultaneously detected, the plurality of doors are simultaneously or sequentially opened. As a result, the user can easily select whether the door is to be opened individually or a plurality of doors by simply changing the touch operation means.

  Further, the detection means is provided in one or a plurality of the plurality of doors, and when the plurality of doors are opened simultaneously or sequentially, the door provided with the detection means detecting the drive command is opened. Then open the other door. As a result, the door that is close to the user's hand or finger, that is, the door that is more likely to attract the user's attention is opened first. It is possible to increase the safety and usability by suppressing the opening.

  Further, when any of the plurality of doors is in an open state, the door is not opened by the door opening device even if the detection means detects. As a result, even when the user touches the detection means unintentionally, the door can be prevented from opening against the user's intention, and safety and usability can be improved.

  Further, when the door cannot be opened when detected by the detecting means, a non-opening notification means for notifying that the door is not opened (for example, any of a buzzer, a voice guide, an illumination means, or these) Combination). As a result, the door opening input from the user is accepted on the refrigerator side, but some conditions, for example, when other doors are open or an input error occurs, the opening operation is invalidated. That the user can recognize that the detection means is faulty.

  Further, when all of the plurality of detection switches detect simultaneously, the door is not opened by the door opening device. Thereby, even when the detection means is touched for cleaning, the door can be prevented from opening against the user's intention, and safety and usability can be improved.

  In addition, when the detection means detects, different notification means (for example, buzzer of the buzzer) when opening any of the plurality of doors alone and when opening the plurality of doors simultaneously or sequentially. Frequency, scale, length, voice guide, lighting pattern of lighting means). As a result, the user can know how the door will open before the door opens, and can confirm in advance whether or not the input intended by the user has been recognized. Can improve the performance and usability.

In addition, although the door was demonstrated to the example of the Kannon type door, it is applicable also to the combination of a drawer type door and the Kannon type and the drawer type door. Moreover, the detection switch is not limited to the touch sensor type. It is also applicable to tact type switches.

  According to the present invention, in a refrigerator having a device that opens a plurality of doors, the refrigerator has an input means that can select whether the door opening device opens the doors individually or opens a plurality of doors simultaneously or sequentially. Therefore, for example, in a refrigerator in which a double door is present in the refrigerator compartment, even when the left and right doors of the refrigerator compartment door are opened, both doors are opened by a single operation. Therefore, the door opening operation can be selected and input by a simple operation. In this case, even when the user has an object in his / her hand, the door can be easily opened or a plurality of doors can be easily opened, so that an easy-to-use refrigerator can be provided.

  Note that the door opening device or the door opening operation of the present embodiment is not limited to the refrigerator, and can be applied to a structure including a plurality of doors. For example, building doors and windows, system kitchen storage doors, automobile doors and windows, household electrical appliances with doors, lids and windows, medical equipment with doors, lids and windows, doors and lids It can be applied to all structures such as office equipment equipped with windows and windows, various racks and cabinet doors.

1 Refrigerator 2 Refrigerated room (first storage room)
2a First door (refrigerator door)
2b Second door (refrigerator door)
3 Ice making room (second storage room)
3a Ice making room door (third door)
3b Ice making room door open detection switch (door open / close detection means)
4 Upper freezer room (second storage room)
4a Freezer compartment upper door (third door)
4b Upper freezer compartment door open detection switch (door open / close detection means)
5 Lower freezer room (third storage room)
5a Lower freezer compartment door (fourth door)
6 Vegetable room (third storage room)
6a Vegetable room door (fourth door)
40 control panel 41 control board 48 detection means 48a first door opening switch (detection means)
48b Second door opening switch (detection means)
60 Opening device a, b, c, d detection switch

Claims (4)

A first storage chamber having a first door and a second door; a second storage chamber adjacent to the first storage chamber; a third door for opening and closing the second storage chamber; An opening device for opening the first door and the second door, a detection means for detecting a drive command to the opening device, a door opening / closing detection means for detecting the open / closed state of the third door, With
When the driving means for sequentially opening the first door and the second door is detected by the detection means, the third door is opened during the opening operation of either the first door or the second door. When the door is opened, the opening operation of the other door of the first door and the second door is stopped. A third storage chamber not adjacent to the first storage chamber, and a fourth door for opening and closing the third storage chamber,
When the detection means detects a drive command for sequentially opening the first door and the second door, the fourth door is operated during the opening operation of either the first door or the second door. 2. The refrigerator according to claim 1, wherein the opening operation of the other door of the first door and the second door is continued even when the first door is opened. A third storage chamber not adjacent to the first storage chamber, a fourth door for opening and closing the third storage chamber, a fourth door opening device for opening the fourth door, and the fourth A door opening switch that detects a drive command to the door opening device,
When the detection means detects a drive command for sequentially opening the first door and the second door, the door opening is performed during the opening operation of either the first door or the second door. Even when there is a drive command for the fourth door opening device from the switch, priority is given to the opening operation of the other of the first door and the second door over the opening operation of the fourth door. The refrigerator according to claim 1, wherein A third storage chamber not adjacent to the first storage chamber, a fourth door for opening and closing the third storage chamber, a fourth door opening device for opening the fourth door, and the fourth A door opening switch that detects a drive command to the door opening device,
A drive command to open either the first door or the second door is detected by the detection means, and either the first door or the second door is opened. A drive command for opening one of the first door and the second door from the detection means and a drive command for opening the fourth door from the door opening switch are simultaneously or within a predetermined time. 2. The refrigerator according to claim 1, wherein priority is given to a drive command to open one of the first door and the second door from the detection means.