JP2005344977A - Refrigerator - Google Patents

Refrigerator Download PDF

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Publication number
JP2005344977A
JP2005344977A JP2004163802A JP2004163802A JP2005344977A JP 2005344977 A JP2005344977 A JP 2005344977A JP 2004163802 A JP2004163802 A JP 2004163802A JP 2004163802 A JP2004163802 A JP 2004163802A JP 2005344977 A JP2005344977 A JP 2005344977A
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Japan
Prior art keywords
door
touch
refrigerator
opening
area
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JP2004163802A
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Japanese (ja)
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Kosaku Adachi
幸作 足立
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Toshiba Corp
Toshiba Consumer Marketing Corp
Toshiba Lifestyle Products and Services Corp
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Toshiba Corp
Toshiba Consumer Marketing Corp
Toshiba Home Appliances Corp
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Priority to JP2004163802A priority Critical patent/JP2005344977A/en
Publication of JP2005344977A publication Critical patent/JP2005344977A/en
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a refrigerator capable of improving usability by applying a capacitance type touch panel as a switch for operating a door opening device mounted on a door face of the refrigerator, and preventing a user from being injured by notifying the user of unexpected touch, and then opening the door. <P>SOLUTION: This refrigerator comprises the heat insulating door 5 for closing a front opening of a refrigerator main body 1, an area formed on an outer face of the heat insulating door for detecting the touch by a person, and a door opening control device 12 composed of a means 11 for detecting the touch to the area by a method excluding a mechanical means, and the mechanical means 17 for opening the insulating door on the basis of the detection signal. The door opening control device is provided with notifying means 13, 14 for notifying the touch to the area between the reception of the signal detecting the touch to the area and the output of a signal for operating the door opening means. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

本発明は、扉自動開放手段を動作させるタッチセンサー領域を扉面に設けた冷蔵庫に関する。   The present invention relates to a refrigerator in which a touch sensor area for operating a door automatic opening means is provided on a door surface.

近年、家庭用冷蔵庫においては、貯蔵温度帯の多様化とともに使い勝手の面から大型化しており、同様に扉内側ポケット部の大収納量化により扉自体も大きく、且つ重くなることから、最も収納容積の大きな冷蔵室扉をワンタッチで自動的に開扉する扉開放装置を備えたものが商品化されている。   In recent years, household refrigerators have become larger due to the diversification of the storage temperature range and ease of use. Similarly, the larger storage capacity of the door inner pocket makes the door itself larger and heavier. Products with door opening devices that automatically open large refrigerator doors with one touch have been commercialized.

この種の扉を自動的に開放する装置を備えた冷蔵庫においては、冷蔵室などの扉の表面に開扉のためのタッチパネルである操作パネルを配置し、使用者がこの操作パネルを押圧することでパネル部に取り付けたマイクロスイッチなどの機械的部材の作動子を押圧など移動させ、この移動による通電でソレノイドなどの扉開放機構を動作させ開扉するように制御していた(例えば、特許文献1参照)。   In a refrigerator equipped with a device that automatically opens this kind of door, an operation panel, which is a touch panel for opening the door, is placed on the surface of a door such as a refrigerator compartment, and the user presses the operation panel. The actuator of a mechanical member such as a micro switch attached to the panel part is moved by pressing or the like, and the door opening mechanism such as a solenoid is operated and opened by energization by this movement (for example, patent document) 1).

そして、前記マイクロスイッチのような機械的部材で動作させる構成の場合は、押圧操作など使い勝手を良好にするためには操作パネルの面積を大きくする必要があるが、この場合は、操作パネルのどの部分を押圧してもスイッチを確実に動作させるための構成が複雑になり、さらにスイッチ動作のための可動機構が大きくなってコストが増大する問題があった。   In the case of a configuration that is operated by a mechanical member such as the microswitch, it is necessary to increase the area of the operation panel in order to improve the usability such as a pressing operation. There is a problem in that the configuration for reliably operating the switch even when the portion is pressed becomes complicated, and the movable mechanism for the switch operation becomes larger and the cost increases.

これを改善するため、タッチパネルを静電容量方式とし、扉表面に金属製の電極を取り付け、タッチするだけでスイッチ動作させるようにすると、電極面積を大きくすることができるとともにパネル面に触れるだけで確実に扉開放機構を動作させることができる構成が得られる。
特開2004−79250公報
In order to improve this, if the touch panel is made capacitive, a metal electrode is attached to the door surface, and the switch is operated simply by touching, the electrode area can be increased and the panel surface can be touched. The structure which can operate a door opening mechanism reliably is obtained.
JP 2004-79250 A

しかしながら、このようなタッチパネル構成では、家人が意図せずに不用意に冷蔵室扉のタッチパネルに触れることが考えられ、その際は瞬間に扉が開くために、場合によっては重い扉によって突き指などの怪我をする恐れがあった。   However, in such a touch panel configuration, it is conceivable that the householder will inadvertently touch the touch panel of the refrigerator compartment door unintentionally. There was a risk of injury.

本発明は上記点を考慮してなされたもので、冷蔵庫の扉面における扉開放装置動作用のスイッチを静電容量方式のタッチパネルなどにして使い勝手を向上するとともに、不用意に触れても触れたことを当該者に報知し、その後開扉することで、人に対する怪我の発生をなくすようにした冷蔵庫を提供することを目的とする。   The present invention has been made in consideration of the above points. The switch for operating the door opening device on the door surface of the refrigerator is improved in usability by using a capacitive touch panel or the like, and touched even if it is touched carelessly. An object of the present invention is to provide a refrigerator in which the person concerned is informed and the door is then opened to eliminate the occurrence of injuries to people.

上記課題を解決するために、本発明の冷蔵庫は、冷蔵庫本体の前面開口を閉塞する断熱扉と、この断熱扉の外面に形成された人の接触を検知するための領域と、前記領域への接触を機械的手段以外の方式で検知する手段およびこの検知した信号に基づき前記断熱扉を開放する機械的手段とからなる扉開放制御装置を備え、前記扉開放制御装置は、前記領域への接触を検知した信号を受けてから扉開放手段を動作させる信号を出力するまでの間に領域への接触を報知する手段を設けたことを特徴とするものである。   In order to solve the above problems, the refrigerator of the present invention includes a heat insulating door that closes the front opening of the refrigerator main body, a region for detecting human contact formed on the outer surface of the heat insulating door, and the region. A door opening control device comprising: means for detecting contact by a method other than mechanical means; and mechanical means for opening the heat insulating door based on the detected signal, wherein the door opening control device is in contact with the region. A means for notifying contact with the area is provided between the time when the signal is detected and the time when the signal for operating the door opening means is output.

本発明の冷蔵庫によれば、タッチ領域を大きくして使い勝手を向上できるとともに、人が不用意にタッチ領域に触れても突然の開扉によって怪我などをすることのない扉開放構成を得ることができる。   According to the refrigerator of the present invention, it is possible to improve the usability by enlarging the touch area, and to obtain a door opening configuration that does not cause injury by sudden opening even if a person touches the touch area carelessly. it can.

以下、図面に基づき本発明の1実施形態について説明する。図1に制御ブロック図とともに縦断面図を示す冷蔵庫本体(1)は、最上部に冷蔵食品を収納貯蔵する冷蔵室(2)を設け、その下部に、野菜室(3)や冷凍室(4)など所定の貯蔵温度に沿った貯蔵室を配置し、それぞれの前面開口には扉を配設するとともに、前記冷蔵室(2)の前面開口には、ヒンジにより一側を冷蔵庫本体側に枢支した冷蔵室扉(5)を取り付けている。   Hereinafter, an embodiment of the present invention will be described with reference to the drawings. The refrigerator main body (1) which shows a longitudinal cross-sectional view with a control block diagram in FIG. 1 is provided with a refrigerated room (2) for storing and storing refrigerated food at the top, and a vegetable room (3) and a freezer room (4) below it. ), Etc. are arranged along the predetermined storage temperature, doors are provided at the respective front openings, and the front opening of the refrigerator compartment (2) is pivoted to the refrigerator main body side by a hinge. A supporting cold room door (5) is attached.

冷蔵室扉(5)は、外表面を薄鋼板からなる前面板(6)で形成しており、扉(5)の冷蔵室内側には、内方に貯蔵品を収納するポケット部を形成する扉内板(7)を配置して、これら各部材間に形成される空間部にウレタンフォームからなる断熱材(8)を発泡充填することで構成されている。   The refrigerator compartment door (5) has an outer surface formed of a front plate (6) made of a thin steel plate, and a pocket portion for accommodating stored items is formed inside the refrigerator compartment side of the door (5). It arrange | positions by arrange | positioning a door inner board (7), and foam-filling the heat insulating material (8) which consists of urethane foam in the space part formed between these members.

前記前面板(6)の下方には、運転状態を表示したり温度設定などをおこなう表示パネル(9)を設置するとともに、扉開放装置を作動させるためのタッチパネル(10)を配設している。   Below the front plate (6), a display panel (9) for displaying the operating state and setting the temperature is installed, and a touch panel (10) for operating the door opening device is arranged. .

このタッチパネル(10)は、開扉の際に人の指が触れる部分、すなわちタッチ領域に金属メッキを施して電極としており、このタッチ領域に人が触れると電極と接触部との静電容量が変化し、この変化をタッチ検出部(11)で検出して扉開放制御部(12)に開扉の信号を送るよう制御されているものであって、前記静電容量の変化の検出は、接続した発振回路における発振の振幅を監視することで判定検出している。   In this touch panel (10), the part touched by a human finger when the door is opened, that is, the touch area is subjected to metal plating to form an electrode. When the person touches the touch area, the capacitance between the electrode and the contact part is increased. It is controlled to detect this change by the touch detection unit (11) and send a door opening signal to the door opening control unit (12). Judgment is detected by monitoring the amplitude of oscillation in the connected oscillation circuit.

冷蔵室扉(5)には、さらに、ブザー(13)などの音響発生部、あるいは発光ダイオード(以下、LEDという。)(14)からなる表示灯部などの報知装置が設けられており、扉開放制御部(12)の信号を受けて、それぞれの駆動部(15)(16)を付勢して動作させる構成としている。また、冷蔵庫本体(1)の上面前方部には、ソレノイドなどの機械的手段からなる扉プッシュ機構(17)が設置されており、扉開放制御部(12)からの開扉信号を駆動回路部(18)に入力して扉プッシュ機構(17)を動作させ、冷蔵室扉(5)を開放するように構成されている。   The refrigerator compartment door (5) is further provided with an alarm device such as a sound generating unit such as a buzzer (13) or an indicator lamp unit comprising a light emitting diode (hereinafter referred to as LED) (14). In response to the signal from the opening control unit (12), the driving units (15) and (16) are energized to operate. In addition, a door push mechanism (17) made of mechanical means such as a solenoid is installed in the upper front part of the refrigerator main body (1), and a door opening signal from the door opening control unit (12) is sent to the drive circuit unit. The door push mechanism (17) is operated by inputting (18) to open the refrigerator compartment door (5).

以下、各部動作の詳細を図2に示すタイムチャートによって説明する。冷蔵室扉(5)のタッチパネル(10)に人が指などを接触させると、人体の接触を検知して静電容量が変化し、この変化をタッチ検出部(11)が検出してタッチ信号はHi信号を出力する。このタッチ信号は人がタッチパネル(10)に触れている間Hi信号を出力するようにしている。扉開放制御部(12)はタッチ信号のレベルを常に監視しており、タッチ信号が所定時間(t1)の間Hiであればブザー駆動部(15)あるいはLED駆動部(16)を動作してブザー(13)あるいはLED(14)を付勢する。   Hereinafter, the details of the operation of each part will be described with reference to the time chart shown in FIG. When a person touches the touch panel (10) of the refrigerator door (5) with a finger or the like, the contact is detected and the capacitance changes, and this change is detected by the touch detection unit (11) to detect the touch signal. Outputs a Hi signal. This touch signal outputs a Hi signal while a person is touching the touch panel (10). The door opening control unit (12) constantly monitors the level of the touch signal. If the touch signal is Hi for a predetermined time (t1), the buzzer driving unit (15) or the LED driving unit (16) is operated. Energize the buzzer (13) or LED (14).

報知手段であるブザー(13)あるいはLED(14)への付勢時間(t2)は、タッチパネル(10)に触れた人の行為が意識的か否かを判別できる時間、例えば1秒間を設定し、この時間(t2)が経過した場合は、タッチパネル(10)への接触は開扉のためであると判断してブザー(13)あるいはLED(14)を消勢し、続いて扉開放制御部(12)は扉プッシュ駆動回路部(18)に駆動信号を送る。そして、駆動信号により扉プッシュ機構(17)を動作し、ソレノイドへの所定時間(t3)の付勢によりこれを励磁して内蔵されているプランジャーの前方への突出により、先端に設けたノックピンによって冷蔵室扉(5)を押圧し、これを開放するものである。   The energizing time (t2) to the buzzer (13) or the LED (14) as a notification means is set to a time, for example, 1 second, for which it is possible to determine whether the action of the person touching the touch panel (10) is conscious. When this time (t2) has elapsed, it is determined that the touch to the touch panel (10) is for opening the door, the buzzer (13) or the LED (14) is turned off, and then the door opening control unit (12) sends a drive signal to the door push drive circuit (18). Then, the door push mechanism (17) is operated by the drive signal, and is excited by energizing the solenoid for a predetermined time (t3), and the built-in plunger protrudes forward so that the knock pin provided at the tip is provided. The refrigeration compartment door (5) is pressed by and is opened.

この構成により、人が冷蔵室扉(5)を開扉するに際しては、タッチパネル(10)に触れることで、ブザー(13)あるいはLED(14)での1秒間程度の報知によってタッチを確認し、その後に、扉プッシュ機構(17)の動作によって自動的に扉が開かれるのは勿論のこと、不用意に扉のタッチパネル(10)に触れた場合には、前記と同様に、t1時間後にブザー(13)あるいはLED(14)をt2時間、すなわち1秒間程度付勢することで、音響あるいは表示光によって該当者にタッチパネル(10)に触れていることを報知して認識させ、注意を喚起した上で開扉させるため、不意の開扉で突き指したりする不具合を回避することが可能となるものである。   With this configuration, when a person opens the refrigerator compartment door (5), touching the touch panel (10) confirms the touch with a buzzer (13) or LED (14) for about 1 second, After that, the door is automatically opened by the operation of the door push mechanism (17), and when the touch panel (10) is inadvertently touched, the buzzer is turned off after t1 time as described above. By energizing (13) or LED (14) for about t2 hours, that is, for about 1 second, the person concerned is notified by touching the touch panel (10) by sound or display light, and attention is drawn. Since the door is opened at the top, it is possible to avoid a problem of being pointed by the unexpected opening.

なお、上記の場合において、図3に示すように、人が無意識にタッチパネル(10)に触れ、ブザー(13)やLED(14)への付勢が所定の通電時間(t2)である1秒間が経過してもなおタッチパネル(10)に接触し続けているような場合も考えられる。そして、このようなときにt2時間が経過して扉プッシュ機構(17)が動作すると、予期せぬ状態での開扉動作によって、やはり突き指などのアクシデントが発生する可能性が残ることになる。   In the above case, as shown in FIG. 3, the person unconsciously touches the touch panel (10), and the energization to the buzzer (13) and the LED (14) is a predetermined energization time (t2) for 1 second. It may be considered that the touch panel (10) continues to be touched even after elapse of time. If the door push mechanism (17) is operated after the time t2 has elapsed in such a case, there is still a possibility that an accident such as a finger will occur due to the door opening operation in an unexpected state.

本発明の他の実施例として図4に示すタイムチャートは、上記懸念を解決するものであり、人がタッチパネル(10)に触れてから離れるまでは、ブザー(13)あるいはLED(14)への付勢を継続させるとともに、離れたことを検出してからさらに所定時間(t4)経過後に初めて扉プッシュ機構(17)のソレノイドへの付勢をおこなうようにしたものである。   The time chart shown in FIG. 4 as another embodiment of the present invention solves the above-mentioned concern, and until the person touches the touch panel (10) and leaves, the time chart for the buzzer (13) or the LED (14) is obtained. The urging is continued, and the urging of the door push mechanism (17) to the solenoid is performed for the first time after a predetermined time (t4) has passed since the separation was detected.

上記構成によれば、人が無意識、あるいは不用意にタッチパネル(10)に接触し、ブザー(13)あるいはLED(14)による報知にもかかわらず接触を継続している場合でも、タッチパネル(10)から離れない限り扉プッシュ機構(17)は駆動せず、冷蔵室扉(5)は開かないので、突き指などの怪我の発生をほとんど回避した安全性の高い扉開放装置を提供することができる。   According to the above configuration, even when a person is unconsciously or carelessly touches the touch panel (10) and continues to contact despite the notification by the buzzer (13) or the LED (14), the touch panel (10) Since the door push mechanism (17) is not driven and the refrigerator compartment door (5) is not opened as long as it is not separated from the door, it is possible to provide a highly safe door opening device that almost avoids injuries such as a finger.

なお、上記実施例におけるタッチパネル(10)は、静電容量の変化で人の接触の有無を検知する方式について説明したが、本発明はこれに限るものではなく、光や超音波、あるいは抵抗膜など機械的手段以外の方式で検知する手段であればよい。   Although the touch panel (10) in the above embodiment has been described with respect to a method for detecting the presence or absence of human contact by a change in capacitance, the present invention is not limited to this, and light, ultrasonic waves, or a resistance film Any means may be used as long as it is detected by a method other than mechanical means.

また、上記説明では報知手段として、ブザー(13)あるいはLED(14)を例にして説明したがこれに限るものではなく、これらの双方を採用してもよく、さらに、チャイムや音声により報知するようにしてもよいことは言うまでもない。そして、対象とする扉も冷蔵室扉に限らず、他の扉に適用してもよいものである。   In the above description, the buzzer (13) or the LED (14) has been described as an example of the notification means. However, the present invention is not limited to this, and both of them may be adopted, and further notification is made by chime or voice. It goes without saying that it may be done. And the door made into object is not restricted to a refrigerator compartment door, You may apply to another door.

本発明は、扉自動開放手段を設けた冷蔵庫に利用することができる。   The present invention can be used for a refrigerator provided with automatic door opening means.

本発明の1実施形態を示す冷蔵庫の縦断面図および制御ブロック図である。It is the longitudinal cross-sectional view and control block diagram of a refrigerator which show one Embodiment of this invention. 図1における各部の制御動作を示すタイムチャートである。It is a time chart which shows the control action of each part in FIG. 図2の場合の発生可能な動作状態を示すタイムチャートである。It is a time chart which shows the operation | movement state which can generate | occur | produce in the case of FIG. 図2のタイムチャートに対する他の実施例である。It is another Example with respect to the time chart of FIG.

符号の説明Explanation of symbols

1 冷蔵庫本体 2 冷蔵室 5 冷蔵室扉
6 扉前面板 9 表示パネル 10 タッチパネル
11 タッチ検出部 12 扉開放制御部 13 ブザー
14 LED 15 ブザー駆動部 16 LED駆動部
17 扉プッシュ機構 18 扉プッシュ駆動回路部
DESCRIPTION OF SYMBOLS 1 Refrigerator body 2 Refrigeration room 5 Refrigeration room door 6 Door front plate 9 Display panel 10 Touch panel
11 Touch detector 12 Door open controller 13 Buzzer
14 LED 15 Buzzer drive 16 LED drive
17 Door push mechanism 18 Door push drive circuit

Claims (4)

冷蔵庫本体の前面開口を閉塞する断熱扉と、この断熱扉の外面に形成された人の接触を検知するための領域と、前記領域への接触を機械的手段以外の方式で検知する手段およびこの検知した信号に基づき前記断熱扉を開放する機械的手段とからなる扉開放制御装置を備え、前記扉開放制御装置は、前記領域への接触を検知した信号を受けてから扉開放手段を動作させる信号を出力するまでの間に領域への接触を報知する手段を設けたことを特徴とする冷蔵庫。   A heat insulating door for closing the front opening of the refrigerator main body, a region for detecting human contact formed on the outer surface of the heat insulating door, means for detecting contact with the region by a method other than mechanical means, and this A door opening control device comprising mechanical means for opening the heat insulating door based on the detected signal, and the door opening control device operates the door opening means after receiving a signal detecting contact with the area. A refrigerator provided with means for notifying contact with an area until a signal is output. 領域への接触を検知した後、少なくともその接触状態がなくなるまでの間は、報知手段の動作を継続させるようにしたことを特徴とする請求項1記載の冷蔵庫。   2. The refrigerator according to claim 1, wherein the operation of the notification means is continued at least until the contact state disappears after detecting the contact with the area. 領域への接触検知が継続している間は扉開放手段を動作させないようにしたことを特徴とする請求項1または2記載の冷蔵庫。   The refrigerator according to claim 1 or 2, wherein the door opening means is not operated while the detection of contact with the area is continued. 報知手段として、音または表示ランプあるいはその双方を使用したことを特徴とする請求項1または2記載の冷蔵庫。
The refrigerator according to claim 1 or 2, wherein a sound and / or a display lamp are used as the notification means.
JP2004163802A 2004-06-01 2004-06-01 Refrigerator Pending JP2005344977A (en)

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