JP7412944B2 - refrigerator - Google Patents

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JP7412944B2
JP7412944B2 JP2019181234A JP2019181234A JP7412944B2 JP 7412944 B2 JP7412944 B2 JP 7412944B2 JP 2019181234 A JP2019181234 A JP 2019181234A JP 2019181234 A JP2019181234 A JP 2019181234A JP 7412944 B2 JP7412944 B2 JP 7412944B2
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magnet
door
refrigerator
magnetic sensor
magnetic
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JP2021055974A (en
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英則 堂田
章 奥藤
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Sharp Corp
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Description

本発明は、冷蔵庫に関する。 The present invention relates to a refrigerator.

例えば、特許文献１には、扉または冷蔵庫本体側に設けた磁石と、扉または冷蔵庫本体の他方側に設けた磁気センサとにより、扉の開閉を検知する冷蔵庫が開示されている。 For example, Patent Document 1 discloses a refrigerator that detects opening/closing of a door using a magnet provided on the door or the refrigerator main body and a magnetic sensor provided on the other side of the door or the refrigerator main body.

特開２０１３－１６０４２１号公報JP2013-160421A

しかしながら、特許文献１に記載の冷蔵庫においては、例えば、磁石と磁気センサとのセットを複数備えた場合、磁石の配置により、他の磁石の磁気の干渉を受け、扉の開閉を正常に検知できないことがあり得る。したがって、磁石同士を所定の間隔を隔てて配置することが望ましいとされる。この場合、磁石同士の位置が遠くなり、それに伴い磁気センサも同様に遠く、全体として複数の磁石と磁気センサとのセットが設ける範囲が広くなってしまう。
そこで、本発明の一形態は、例えば、磁石同士を干渉させることにより、扉の開閉が検知される距離を調整することができる冷蔵庫を提供することにある。 However, in the refrigerator described in Patent Document 1, for example, when a plurality of sets of magnets and magnetic sensors are provided, the opening and closing of the door cannot be detected normally due to the magnetic interference of other magnets due to the arrangement of the magnets. It is possible. Therefore, it is considered desirable to arrange the magnets at predetermined intervals. In this case, the positions of the magnets become far apart, and the magnetic sensors also become distant accordingly, resulting in an overall range in which a set of a plurality of magnets and magnetic sensors is provided.
Therefore, one aspect of the present invention is to provide a refrigerator that can adjust the distance at which door opening/closing is detected, for example, by causing magnets to interfere with each other.

本発明の一形態の冷蔵庫は、貯蔵室を有する冷蔵庫本体と、前記貯蔵室を開閉する第１扉と、前記第１扉と隣接するとともに、前記貯蔵室を開閉する第２扉と、前記第１扉または前記冷蔵庫本体の一方に設けられた第１磁石と、前記第１扉または前記冷蔵庫本体の他方に設けられるとともに前記第１扉が閉じた状態で前記第１磁石の磁力値を検出する第１磁気センサとを含み、前記第１扉の開閉を検知する第１検知部と、前記第２扉または前記冷蔵庫本体の一方に設けられた第２磁石と、前記第２扉または前記冷蔵庫本体の他方に設けられるとともに前記第２扉が閉じた状態で前記第２磁石の磁力値を検出する第２磁気センサとを含み、前記第２扉の開閉を検知する第２検知部と、を備え、前記第１磁石と、前記第２磁石とは、前記第１扉および前記第２扉が閉じた状態で互いに磁界が干渉する位置に配置されている。 A refrigerator according to one embodiment of the present invention includes a refrigerator main body having a storage chamber, a first door that opens and closes the storage chamber, a second door that is adjacent to the first door and that opens and closes the storage chamber, and a second door that opens and closes the storage chamber. A first magnet provided on one door or the refrigerator main body, and a magnetic force value of the first magnet provided on the other of the first door or the refrigerator main body with the first door closed. a first detection unit that detects opening/closing of the first door; a second magnet provided on one of the second door or the refrigerator main body; and a second magnet provided on one of the second door or the refrigerator main body; and a second magnetic sensor that is provided on the other side of the magnet and detects the magnetic force value of the second magnet when the second door is closed, and a second detection unit that detects opening and closing of the second door. The first magnet and the second magnet are arranged at positions where their magnetic fields interfere with each other when the first door and the second door are closed.

第１の実施形態に係る冷蔵庫の一例の正面図である。It is a front view of an example of a refrigerator concerning a 1st embodiment. 図１の冷蔵庫の扉を開いた状態の正面図である。FIG. 2 is a front view of the refrigerator shown in FIG. 1 with the door open. 図１の冷蔵庫の開閉検知部の位置関係を示す側面断面図である。FIG. 2 is a side cross-sectional view showing the positional relationship of opening/closing detection sections of the refrigerator in FIG. 1. FIG. 図１の冷蔵庫の制御部を中心とした構成の一例を示す図である。FIG. 2 is a diagram showing an example of a configuration centered on a control unit of the refrigerator shown in FIG. 1. FIG. （ａ）～（ｄ）は、各磁石の配置の例を示す図である。(a) to (d) are diagrams showing examples of the arrangement of each magnet.

以下、本発明の実施形態について、図面を参照しつつ説明する。なお、図面については、同一又は同等の要素には同一の符号を付し、重複する説明は省略する。 Embodiments of the present invention will be described below with reference to the drawings. In the drawings, the same or equivalent elements are denoted by the same reference numerals, and duplicate explanations will be omitted.

（第１の実施形態）
図１は、本実施形態の冷蔵庫一例を示す正面図である。図２は、図１に示す冷蔵庫のドアを開いた際の正面図である。 (First embodiment)
FIG. 1 is a front view showing an example of a refrigerator according to this embodiment. FIG. 2 is a front view of the refrigerator shown in FIG. 1 when the door is opened.

図１、図２に示すように、冷蔵庫１００は、例えば、冷蔵庫本体１１０、冷蔵庫本体１１０に開閉可能に設けられた第１扉１０１、第２扉１０２、第３扉１０３、第４扉１０４を備える。 As shown in FIGS. 1 and 2, the refrigerator 100 includes, for example, a refrigerator main body 110, a first door 101, a second door 102, a third door 103, and a fourth door 104, which are provided in the refrigerator main body 110 so as to be openable and closable. Be prepared.

冷蔵庫本体１１０は、前面に開口部を有し、断熱壁１０８で上下に区切られた、上部の冷蔵室１０６、下部の冷凍室１０７からなる貯蔵室を有する。なお、冷蔵室１０６および冷凍室１０７からなる貯蔵室は、この構成に限定されるものではなく、例えば、冷蔵室１０６と冷凍室１０７とで上下が入れ替わってもよいし、冷蔵室１０６および冷凍室１０７のそれぞれが左右に区画され、それぞれの区画された貯蔵室が各扉１０１・１０２・１０３・１０４で開閉されるように構成してもよい。また、各貯蔵室においてどの貯蔵室を冷蔵室とし、どの貯蔵室を冷凍室とするかは限定されず、適宜選択することができる。さらに、各貯蔵室は冷蔵室や冷凍室に限られず野菜室やチルド室等としてもよい。 The refrigerator main body 110 has an opening in the front, and has a storage chamber that is vertically divided by a heat insulating wall 108 and consists of an upper refrigerating chamber 106 and a lower freezing chamber 107. Note that the storage compartment consisting of the refrigerating compartment 106 and the freezing compartment 107 is not limited to this configuration; for example, the refrigerating compartment 106 and the freezing compartment 107 may be interchanged vertically, or the refrigerating compartment 106 and the freezing compartment 107 may Each of the storage compartments 107 may be divided into left and right sections, and each compartment may be opened and closed by the doors 101, 102, 103, and 104. Moreover, which storage room in each storage room is used as a refrigerator room and which storage room is used as a freezing room is not limited, and can be selected as appropriate. Furthermore, each storage compartment is not limited to a refrigerator compartment or a freezer compartment, but may also be a vegetable compartment, a chilled compartment, or the like.

第１扉１０１および第２扉１０２は、例えば、冷蔵庫本体１１０の前面側の左端に設けられた軸で開閉可能に支持され、それぞれ、冷蔵室１０６、冷凍室１０７の開口部の左半分を開閉するようになっている。また、第３扉１０３および第４扉１０４は、例えば、冷蔵庫本体１１０の前面側の右端に設けられた軸で開閉可能に支持され、それぞれ、冷蔵室１０６、冷凍室１０７の開口部の右半分を開閉するようになっている。つまり、第１扉１０１および第３扉１０３は、冷蔵室１０６を観音開き式に開閉するようになっている。また、第２扉１０２および第４扉１０４は、冷凍室１０７を観音開き式に開閉するようになっている。なお、各扉は軸を中心に回転して開閉するようにしているが、これに限られず、例えば、引き出し式であってもよい。 The first door 101 and the second door 102 are supported so as to be openable and closable, for example, by a shaft provided at the left end of the front side of the refrigerator main body 110, and open and close the left half of the opening of the refrigerator compartment 106 and the freezer compartment 107, respectively. It is supposed to be done. Further, the third door 103 and the fourth door 104 are supported so as to be openable and closable, for example, by a shaft provided at the right end of the front side of the refrigerator body 110, and are located in the right half of the opening of the refrigerator compartment 106 and the freezer compartment 107, respectively. It is designed to open and close. In other words, the first door 101 and the third door 103 are configured to open and close the refrigerator compartment 106 in a double-folding manner. Further, the second door 102 and the fourth door 104 are configured to open and close the freezer compartment 107 in a double-door style. Although each door is opened and closed by rotating around an axis, the door is not limited to this, and may be of a pull-out type, for example.

また、例えば、冷蔵室１０６の上部には、第１扉１０１または第３扉１０３が開いた状態で点灯する第１照明部１１１が設けられている。さらに、例えば、冷凍室１０７の上部には、第２扉１０２または第４扉１０４が開いた状態で点灯する第２照明部１１２が設けられている。なお、上記第１照明部１１１および第２照明部１１２の位置は特に限定されるものではなく、例えば、冷蔵室１０６、冷凍室１０７の側壁部に設けてもよい。 Furthermore, for example, a first lighting section 111 is provided at the top of the refrigerator compartment 106, which lights up when the first door 101 or the third door 103 is open. Further, for example, a second illumination section 112 is provided at the upper part of the freezer compartment 107, which lights up when the second door 102 or the fourth door 104 is open. Note that the positions of the first lighting section 111 and the second lighting section 112 are not particularly limited, and may be provided on the side walls of the refrigerator compartment 106 and the freezing compartment 107, for example.

断熱壁１０８の前面側には、例えば基板１０９が設けられている。基板１０９には、第１磁気センサ１２１、第２磁気センサ１２２、第３磁気センサ１２３、第４磁気センサ１２４が設けられている。第１扉１０１、第２扉１０２、第３扉１０３、第４扉１０４のそれぞれには、各扉を閉じた際に第１磁気センサ１２１、第２磁気センサ１２２、第３磁気センサ１２３、第４磁気センサ１２４と対向するように、第１磁石１３１、第２磁石１３２、第３磁石１３３、第４磁石１３４が設けられている。本実施形態においては、各磁気センサ１２１・１２２・１２３・１２４は、例えば、予め設定された第１所定値と、第１所定値よりも小さい第２所定値とを検出するように構成する。 For example, a substrate 109 is provided on the front side of the heat insulating wall 108. A first magnetic sensor 121, a second magnetic sensor 122, a third magnetic sensor 123, and a fourth magnetic sensor 124 are provided on the substrate 109. Each of the first door 101, second door 102, third door 103, and fourth door 104 has a first magnetic sensor 121, a second magnetic sensor 122, a third magnetic sensor 123, and a magnetic sensor. A first magnet 131 , a second magnet 132 , a third magnet 133 , and a fourth magnet 134 are provided to face the four magnetic sensors 124 . In this embodiment, each of the magnetic sensors 121, 122, 123, and 124 is configured to detect, for example, a first predetermined value set in advance and a second predetermined value smaller than the first predetermined value.

そして、対となる磁気センサと磁石とにより開閉検知部を構成する。つまり、第１磁気センサ１２１と第１磁石１３１とにより、第１扉１０１の開閉を検知する第１開閉検知部１４１が構成され、第２磁気センサ１２２と第２磁石１３２とにより、第２扉１０２の開閉を検知する第２開閉検知部１４２が構成され、第３磁気センサ１２３と第３磁石１３３とにより、第３扉１０３の開閉を検知する第３開閉検知部１４３が構成され、第４磁気センサ１２４と第４磁石１３４とにより、第４扉１０４の開閉を検知する第４開閉検知部１４４が構成される。 The pair of magnetic sensor and magnet constitutes an opening/closing detection section. That is, the first magnetic sensor 121 and the first magnet 131 constitute a first opening/closing detection section 141 that detects the opening/closing of the first door 101, and the second magnetic sensor 122 and the second magnet 132 constitute a first opening/closing detection section 141 that detects the opening/closing of the first door 101. A second opening/closing detection section 142 for detecting opening/closing of the third door 102 is configured, a third opening/closing detection section 143 for detecting opening/closing of the third door 103 is configured by the third magnetic sensor 123 and a third magnet 133, The magnetic sensor 124 and the fourth magnet 134 constitute a fourth opening/closing detection section 144 that detects opening/closing of the fourth door 104.

各開閉検知部１４１・１４２．１４３・１４４は、例えば、それぞれ対応する各磁気センサ１２１・１２２・１２３・１２４で検出される磁力（例えば、磁束密度）に応じて、それぞれ対応する扉１０１・１０２．１０３・１０４が開閉したことを表す開閉情報を出力する。そして、冷蔵庫１００においては、例えば、開情報が出力されたのち、閉情報が所定時間出力されない場合には、例えば、スピーカからの音、後述の照明部の光強度を強くするなどの光の変化、表示部等における表示などにより、ユーザに報知することにより扉を閉めるように促すように構成する。これにより、冷蔵庫１００の省エネルギー化に貢献する。上記では、磁石を扉側、磁気センサを冷蔵庫本体側に設けているが、この配置に限らず、磁石を冷蔵庫本体側、磁気センサを扉側に設けてもよい。 For example, each opening/closing detection unit 141, 142, 143, 144 detects the corresponding door 101, 102, depending on the magnetic force (for example, magnetic flux density) detected by each corresponding magnetic sensor 121, 122, 123, 124. .103 and 104 are opened/closed. Opening/closing information is output. In the refrigerator 100, for example, if the close information is not output for a predetermined period of time after the open information is output, for example, the sound from the speaker or the light changes such as increasing the light intensity of the lighting section described below. The system is configured to prompt the user to close the door by notifying the user through a display on a display unit or the like. This contributes to energy saving of the refrigerator 100. In the above, the magnet is provided on the door side and the magnetic sensor is provided on the refrigerator main body side, but the arrangement is not limited to this, and the magnet may be provided on the refrigerator main body side and the magnetic sensor may be provided on the door side.

ここで、第１開閉検知部１４１における第１扉１０１の開閉状態の検知について説明する。本実施形態においては、第１扉１０１および第２扉１０２が閉じた状態において、第１開閉検知部１４１における磁石１３１と第２開閉検知部１４２における磁石１３２とが干渉する場合について、図３を用いて説明する。図３では、第３開閉検知部１４３および第４検知部１４４を、第１開閉検知部１４１に対する干渉を無視できる距離に配置しているとする。なお、第２～第４開閉検知部１４２・１４３・１４４は、基本的に第１開閉検知部と同様の構成であるため、第２～第４開閉検知部１４２・１４３・１４４に対応する扉の開閉状態の検知についての説明は省略する。 Here, detection of the open/close state of the first door 101 by the first open/close detector 141 will be described. In this embodiment, when the first door 101 and the second door 102 are closed, FIG. I will explain using In FIG. 3, it is assumed that the third open/close detector 143 and the fourth detector 144 are arranged at a distance where interference with the first open/close detector 141 can be ignored. Note that the second to fourth open/close detectors 142, 143, and 144 basically have the same configuration as the first open/close detector, so the doors corresponding to the second to fourth open/close detectors 142, 143, and 144 A description of the detection of the open/closed state of the opening/closing state will be omitted.

図３は、本実施形態における第１開閉検知部１４１と第２開閉検知部１４２との位置関係を示す側面断面図である。図３に示すように、第１磁石１３１は、例えば、Ｎ極が上方、Ｓ極が下方に向くように配置されている。第２磁石１３２は、例えば、Ｓ極が上方、Ｎ極が下方に向くように配置されている。つまり、第１磁石１３１と第２磁石１３２とは、互いに同極が対向するに向くように配置されている。このように、第１磁石１３１と、第２磁石１３２との配置の場合、第１磁気センサ１２１で検知される磁力は、第１磁石１３１による磁力（一点鎖線で示される矢印）と、第２磁石１３２による磁力（二点鎖線で示される矢印）とが干渉した結果の磁力（以下、複合磁力とも称する）である。磁石による磁力は、磁石からの距離が遠くなるほど弱くなる。図３に示すように、第１磁気センサ１２１は、より近くに位置する第１磁石１３１の磁力が、第２磁石１３２の磁力により弱められた状態の複合磁力を検出する。つまり、第１磁気センサ１２１は、第１所定値、第２所定値を検出した場合、第２磁石１３２により磁力が弱められていない場合よりも、近い位置で上記複合磁力を検知する。よって、第１開閉検知部１４１は、第２磁石１３２により磁力が弱められていない場合よりも、第１扉１０１と冷蔵庫本体１１０とのわずかな隙間を検知できる。これにより、上記第１所定値および第２所定値に合わせて、第１磁石１３１および／または第２磁石１３２の位置または磁力を調整することにより、第１開閉検知部１４１による第１扉１０１の開閉を検出する距離を調整することができる。 FIG. 3 is a side sectional view showing the positional relationship between the first open/close detector 141 and the second open/close detector 142 in this embodiment. As shown in FIG. 3, the first magnet 131 is arranged, for example, so that the north pole faces upward and the south pole faces downward. The second magnet 132 is arranged, for example, so that the south pole faces upward and the north pole faces downward. That is, the first magnet 131 and the second magnet 132 are arranged so that the same poles face each other. In this way, in the case of the arrangement of the first magnet 131 and the second magnet 132, the magnetic force detected by the first magnetic sensor 121 is the magnetic force of the first magnet 131 (indicated by the dashed line) and the magnetic force of the second magnet This is a magnetic force (hereinafter also referred to as composite magnetic force) that is the result of interference with the magnetic force of the magnet 132 (arrow indicated by a two-dot chain line). The magnetic force of a magnet becomes weaker as the distance from the magnet increases. As shown in FIG. 3, the first magnetic sensor 121 detects a composite magnetic force in which the magnetic force of the first magnet 131 located closer to the first magnet 131 is weakened by the magnetic force of the second magnet 132. That is, when the first magnetic sensor 121 detects the first predetermined value and the second predetermined value, it detects the composite magnetic force at a closer position than when the magnetic force is not weakened by the second magnet 132. Therefore, the first open/close detector 141 can detect a slight gap between the first door 101 and the refrigerator main body 110 than when the magnetic force is not weakened by the second magnet 132. Thereby, by adjusting the position or magnetic force of the first magnet 131 and/or the second magnet 132 according to the first predetermined value and the second predetermined value, the first opening/closing detection section 141 can detect the first door 101. The distance for detecting opening and closing can be adjusted.

なお、上記では、磁力を弱めるように磁石を配置する例を挙げたが、これに限らず、例えば、第１磁石１３１および／または第２磁石１３２の角度や磁力を変更したりして、第１磁気センサ１２１が配置された位置の磁力を弱めたり、強めたり調整することも可能である。 In addition, although the example in which the magnets are arranged so as to weaken the magnetic force is given above, the present invention is not limited to this, and for example, by changing the angle or magnetic force of the first magnet 131 and/or the second magnet 132, It is also possible to weaken or strengthen the magnetic force at the position where the magnetic sensor 121 is arranged.

また、各磁石１３１・１３２の形状は、特に限定されるものではないが、例えば、上下方向の幅よりも、左右方向の幅が大きく設定された直方体形状である。特に、上下方向の幅を小さくすることにより、これらの第１磁気センサ１３１および第２磁気センサ１３２が設けられる基板１０９の上下方向の幅を狭くし、小型化することができる。また、各磁石と磁気センサとが近づきすぎた（特に、磁石の左右方向の近傍）場合、磁力が弱いため磁気センサで検知しづらくなるが、上記にように左右方向の幅を大きくし、上下方向に磁力の向きを設定することにより、より磁石の近くでも磁気センサで検出できる程度の磁力を得ることができる。 Further, the shape of each of the magnets 131 and 132 is not particularly limited, but is, for example, a rectangular parallelepiped in which the width in the left-right direction is larger than the width in the up-down direction. In particular, by reducing the width in the vertical direction, the width in the vertical direction of the substrate 109 on which the first magnetic sensor 131 and the second magnetic sensor 132 are provided can be narrowed, and the size can be reduced. Also, if each magnet and the magnetic sensor are too close together (especially near the magnet in the horizontal direction), the magnetic force will be weak and it will be difficult for the magnetic sensor to detect it. By setting the direction of the magnetic force in the direction, it is possible to obtain a magnetic force that can be detected by a magnetic sensor even closer to the magnet.

さらに、第１磁石１３１および第２磁石１３２のＳ極およびＮ極の向きは、特に限定されるものではないが、例えば、上下方向に配置している。これにより、より効率よく第１磁力センサ１２１の位置で、磁力を干渉させることができる。 Further, although the directions of the S and N poles of the first magnet 131 and the second magnet 132 are not particularly limited, they are arranged, for example, in the vertical direction. Thereby, the magnetic force can be caused to interfere more efficiently at the position of the first magnetic force sensor 121.

なお、本実施形態においては、上下に配置した第１磁石と第２磁石との位置関係で説明したが、これに限らず。例えば、第１磁石と第２磁石とが左右に配置し、磁石の配置に伴い各部を配置した構成であってもよい。 In addition, in this embodiment, although the positional relationship of the 1st magnet and 2nd magnet which were arrange|positioned up and down was demonstrated, it is not limited to this. For example, the first magnet and the second magnet may be arranged on the left and right, and each part may be arranged in accordance with the arrangement of the magnets.

図４は、冷蔵庫１００のハードウェア構成について説明する。図４は、冷蔵庫１００のハードウェア構成を示すブロック図である。冷蔵庫１００は、主として、第１照明部１１１．第２照明部１１２、第１開閉検知部１４１、第２開閉検知部１４２、第３開閉検知部１４３、第４開閉検知部１４４、制御部４００、記憶部４０１、報知部４０２等を備える。制御部４００は、例えば、ＣＰＵ（Ｃｅｎｔｒａｌ Ｐｒｏｃｅｓｓｉｎｇ Ｕｎｉｔ）やＭＰＵ（Ｍｉｃｒｏ Ｐｒｏｃｅｓｓｉｎｇ Ｕｎｉｔ）から構成される。記憶部４０１は、例えば、ＲＯＭ（Ｒｅａｄ Ｏｎｌｙ Ｍｅｍｏｒｙ）及びＲＡＭ（Ｒａｎｄｏｍ Ａｃｃｅｓｓ Ｍｅｍｏｒｙ）等であって、制御部４００により実行されるプログラム及び制御部４００にて使用する各種パラメータ等を記憶する。報知部４０２は、例えば、冷蔵庫１００に設けられた表示部やスピーカ等である。 FIG. 4 explains the hardware configuration of refrigerator 100. FIG. 4 is a block diagram showing the hardware configuration of refrigerator 100. The refrigerator 100 mainly includes a first lighting section 111. It includes a second lighting section 112, a first opening/closing detection section 141, a second opening/closing detection section 142, a third opening/closing detection section 143, a fourth opening/closing detection section 144, a control section 400, a storage section 401, a notification section 402, and the like. The control unit 400 includes, for example, a CPU (Central Processing Unit) or an MPU (Micro Processing Unit). The storage unit 401 is, for example, a ROM (Read Only Memory), a RAM (Random Access Memory), etc., and stores programs executed by the control unit 400 and various parameters used by the control unit 400. The notification unit 402 is, for example, a display unit, a speaker, etc. provided in the refrigerator 100.

制御部４００は、例えば、第１照明部１１１および第２照明部１１２の点灯状態を制御する。具体的には、制御部４００は、第１照明部１１１、第２照明部１１２、記憶部４０１、第１開閉検知部１４１、第２開閉検知部１４２、第３開閉検知部１４３、第４開閉検知部１４４等のそれぞれに接続され、各部を制御する。 For example, the control unit 400 controls the lighting states of the first lighting unit 111 and the second lighting unit 112. Specifically, the control unit 400 controls the first lighting unit 111, the second lighting unit 112, the storage unit 401, the first opening/closing detection unit 141, the second opening/closing detection unit 142, the third opening/closing detection unit 143, and the fourth opening/closing detection unit. It is connected to each of the detection sections 144 and the like, and controls each section.

制御部４００は、例えば、第１開閉検知部１４１または第３開閉検知部１４３で検知された扉開閉情報に基づいて、第１照明部１１１を制御する。より具体的には、制御部４００は、上記扉開閉情報に基づいて、第１扉１０１および／または第３扉１０３が開いていると判定した場合（例えば、第２所定値を検知したのち、続いて第１所定値を検知した場合や、第１所定値を連続して検知した場合等）、第１照明部１１１を所定の照度で点灯し、第１扉１０１および第３扉１０３が閉じていると判定した場合（例えば、第１所定値を検知したのち、続いて第２所定値を検知した場合や、連続して第２所定値を検知した場合等）、第１照明部１１１を消灯する。これにより、ユーザは第１扉１０１および／または３扉１０３を開けた際に、冷蔵室１０６の内部を視認しやすくなる。 The control unit 400 controls the first lighting unit 111 based on the door opening/closing information detected by the first opening/closing detection unit 141 or the third opening/closing detection unit 143, for example. More specifically, when the control unit 400 determines that the first door 101 and/or the third door 103 are open based on the door opening/closing information (for example, after detecting the second predetermined value, Subsequently, when the first predetermined value is detected, or when the first predetermined value is continuously detected, etc.), the first lighting section 111 is turned on at a predetermined illuminance, and the first door 101 and the third door 103 are closed. When it is determined that the first illumination unit 111 is Lights out. This makes it easier for the user to visually check the inside of the refrigerator compartment 106 when the first door 101 and/or the third door 103 is opened.

さらに、制御部４００は、例えば、第１扉１０１および／または第３扉１０３が開いていると判定したのち、所定時間経過した場合、報知部４０２を制御する。より具体的には、制御部４００は、例えば、表示部に扉が開いていることを表示したり、スピーカから警告音を発したり、第１照明部１１１の照度を大きくする等である。なお、例えば、制御部４００は、第２開閉検知部１４２または第４開閉検知部１４４で検知された扉開閉情報に基づいて、第２照明部１１２を、第１照明部１１１と同様に制御してよい。これにより、例えば、ユーザに第１扉１０１および／または第３扉１０３を閉めるように報知等で促すことができ、冷蔵室１０６から冷気漏れ、温度上昇を防止し、無駄に冷蔵室１０６を冷却することを抑止することができ、省エネルギー化に貢献することができる。 Further, the control unit 400 controls the notification unit 402, for example, when a predetermined period of time has elapsed after determining that the first door 101 and/or the third door 103 are open. More specifically, the control unit 400 displays, for example, on the display unit that the door is open, emits a warning sound from the speaker, increases the illuminance of the first lighting unit 111, and the like. Note that, for example, the control unit 400 controls the second lighting unit 112 in the same way as the first lighting unit 111 based on the door opening/closing information detected by the second opening/closing detection unit 142 or the fourth opening/closing detection unit 144. It's fine. As a result, for example, it is possible to prompt the user to close the first door 101 and/or the third door 103 by a notification, etc., to prevent cold air from leaking from the refrigerator compartment 106 and temperature rise, and to cool the refrigerator compartment 106 unnecessarily. This can contribute to energy conservation.

なお、上記では、第１開閉検知部１４１、第３開閉検知部１４３の第１磁気センサ１２１および第３磁気センサ１２３が、所定値の磁力を検知するように構成しているが、各センサで磁気を常時検出していてもよい。そして、制御部４００は、磁気センサで検出される磁力に応じて、扉の開閉を判定するように構成してもよい。より具体的には、制御部４００は、例えば、検知される磁気が第１の所定値と第２の所定値である期間が所定時間経過した場合に第１照明部１１１の照度を大きく（例えば、最大照度に）するように構成してもよい。これにより、例えば第１扉１０１および／または第３扉１０３がわずかに開いている場合、第１照明部１１１の光が冷蔵庫本体１１０と第１扉１０１または第３扉１０３との隙間から光を漏れださせ、ユーザに扉が開いていることを報知することができる。なお、上記では、扉が開いていることを光によってユーザに警告したが、例えば、冷蔵庫１００に設けたスピーカや表示部で音や表示によりユーザに警告するように構成してもよい。 Note that in the above, the first magnetic sensor 121 and the third magnetic sensor 123 of the first open/close detector 141 and the third open/close detector 143 are configured to detect a predetermined value of magnetic force, but each sensor Magnetism may be constantly detected. The control unit 400 may be configured to determine whether the door is opened or closed depending on the magnetic force detected by the magnetic sensor. More specifically, the control unit 400 increases the illuminance of the first illumination unit 111 (for example, when a predetermined period of time has elapsed during which the detected magnetism is at the first predetermined value and the second predetermined value). , maximum illuminance). As a result, for example, when the first door 101 and/or the third door 103 are slightly open, the light from the first lighting section 111 is transmitted through the gap between the refrigerator main body 110 and the first door 101 or the third door 103. It is possible to make the door leak and notify the user that the door is open. In the above description, the user is warned that the door is open using light, but the refrigerator 100 may be configured to use a speaker or a display unit to warn the user with sound or display, for example.

本実施形態の冷蔵庫によれば、例えば、第１開閉検知部１４１における第１磁石１３１と、第２開閉検知部１４２における第２磁石１３２とが互いに干渉するように配置される。これにより、第１磁気センサ１２１で検知される磁力を調整することができ、例えば、第１扉１０１と冷蔵庫本体１１０とで検知される距離を調整することができる。例えば、第１磁石１３１と第２磁石１３２とを互いに磁力を弱めあう位置に配置することにより、第１開閉検出部１４１は、第１扉１０１と冷蔵庫本体１１０との距離をより近い距離で検知することができる。 According to the refrigerator of this embodiment, for example, the first magnet 131 in the first open/close detector 141 and the second magnet 132 in the second open/close detector 142 are arranged so as to interfere with each other. Thereby, the magnetic force detected by the first magnetic sensor 121 can be adjusted, and for example, the distance detected between the first door 101 and the refrigerator main body 110 can be adjusted. For example, by arranging the first magnet 131 and the second magnet 132 in positions where their magnetic forces are weakened, the first open/close detector 141 can detect the distance between the first door 101 and the refrigerator main body 110 at a closer distance. can do.

また、上記では、第１開閉検知部１４１および第２開閉検知部１４２に着目し、第１開閉検知部１４１の第１磁石１２１と第２開閉検知部１４２の第２磁石１２２との配置に基づいて説明したが、この配置に限定されるものではない。以下では、各磁石１３１・１３２・１３３・１３４の配置の例について図５を用いて説明する。 Further, in the above description, attention is paid to the first open/close detector 141 and the second open/close detector 142, and based on the arrangement of the first magnet 121 of the first open/close detector 141 and the second magnet 122 of the second open/close detector 142, However, the arrangement is not limited to this arrangement. Below, an example of the arrangement of the magnets 131, 132, 133, and 134 will be described using FIG. 5.

なお、上記実施形態のように、左側の第１扉１０１および第２扉１０２に設けた第１磁石１３１と第２磁石１３２とを干渉させるとともに、右側の第３扉１０３および第４扉１０４に設けた第３磁石１３３と第４磁石１３４とを干渉させるように構成し、第１磁石１３１および第２磁石１３２と、第３磁石１３３および第４磁石１３４とが、互いに干渉しない距離に配置した場合について説明する。 Note that, as in the above embodiment, the first magnet 131 and the second magnet 132 provided on the first door 101 and the second door 102 on the left side are made to interfere with each other, and the third door 103 and the fourth door 104 on the right side are made to interfere with each other. The third magnet 133 and the fourth magnet 134 provided are configured to interfere with each other, and the first magnet 131 and the second magnet 132 and the third magnet 133 and the fourth magnet 134 are arranged at a distance that does not interfere with each other. Let me explain the case.

図５（ａ）～（ｄ）においては、互いに干渉する磁石の極が互いに対向する方向に向いている。このように、磁石を配置することにより、左側の第１磁石１３１と第２磁石１３２とを互いに弱めあうようにし、右側の第３磁石１３３と第４磁石１３４とを互いに弱めあうようにすることができる。このように互いに弱めあうように構成することにより、第１磁石１３１と第２磁石１３２との距離、つまり、これらの各磁石１３１・１３２に対向する位置に設けられた第１磁気センサ１２１と第２磁気センサ１２２との距離、および第３磁石１３３と第４磁石１３４との距離、つまり、これらの第３磁石１３３および第４磁石１３４に対向する位置に設けられた第３磁気センサ１２３と第４磁気センサ１２４との距離を近づけることができる。これにより、各磁気センサ１２１・１２２・１２３・１２４が設けられた基板１０９の上下方向をより狭くすることができ、基板１０９を小型化することができる。 In FIGS. 5(a) to 5(d), the poles of the magnets that interfere with each other are oriented in opposite directions. By arranging the magnets in this way, the first magnet 131 and the second magnet 132 on the left side are made to weaken each other, and the third magnet 133 and the fourth magnet 134 on the right side are made to weaken each other. I can do it. By configuring them to weaken each other in this way, the distance between the first magnet 131 and the second magnet 132, that is, the distance between the first magnetic sensor 121 and the first magnetic sensor 121 and The distance between the second magnetic sensor 122 and the third magnet 133 and the fourth magnet 134, that is, the distance between the third magnetic sensor 123 and the third magnetic sensor 123 provided at positions facing the third magnet 133 and the fourth magnet 134. 4 magnetic sensor 124 can be brought closer. Thereby, the vertical direction of the substrate 109 on which the magnetic sensors 121, 122, 123, and 124 are provided can be further narrowed, and the substrate 109 can be made smaller.

図５（ｂ）（ｄ）では、右側の扉１０３・１０４に最も近い第２磁石１３２に対して、対角にある第３扉１０３に設けた第３磁石１３３が第２磁石１３２と最も近接するようになり、第２磁石１３２と第３磁石１３３との干渉が無視できる距離に設けられている。一方、図５（ａ）（ｃ）では、右側の扉１０３・１０４に最も近い第２磁石１３２に対して、隣り合う第４扉１０４に設けた第４磁石１３４が第２磁石１３２と最も近接するようになり、第２磁石１３２と第４磁石１３４との干渉が無視できる距離に設けられている。このよう構成した場合、図５（ａ）（ｃ）における第２磁石１３２と第４磁石１３４との距離と、図５（ｂ）（ｄ）における第２磁石１３２と第３磁石１３３との距離とは、互いに干渉が無視できる同じ距離とすることができる。つまり、図５（ａ）（ｃ）の磁石の配置よりも、図５（ｂ）（ｄ）の磁石の配置のほうが、左右方向について、第２磁石１３２側に第３磁石１３３を近づけることができる。これにより、図５（ｂ）（ｄ）の磁石の配置では、第３磁石１３３に対応する第３磁気センサ１２３および第４磁気センサ１２４を、第２磁石１３２に対応する第２磁気センサ１２２に対してより左右方向に近づけるように配置することができる。したがって、第１～第４磁気センサ１２１・１２２・１２３・１２４が設けられた基板１０９の左右方向をより狭くすることができ、基板１０９を小型化することができる。 In FIGS. 5(b) and 5(d), the third magnet 133 provided on the third door 103 located diagonally opposite the second magnet 132 closest to the right door 103 and 104 is closest to the second magnet 132. Thus, the second magnet 132 and the third magnet 133 are provided at a distance where interference between them can be ignored. On the other hand, in FIGS. 5(a) and 5(c), the fourth magnet 134 provided on the adjacent fourth door 104 is closest to the second magnet 132, whereas the second magnet 132 is closest to the right-hand doors 103 and 104. Thus, the second magnet 132 and the fourth magnet 134 are provided at a distance where interference between them can be ignored. When configured in this way, the distance between the second magnet 132 and the fourth magnet 134 in FIGS. 5(a) and 5(c) and the distance between the second magnet 132 and the third magnet 133 in FIGS. 5(b) and (d) can be the same distance at which mutual interference can be ignored. In other words, the arrangement of the magnets in FIGS. 5(b) and 5(d) allows the third magnet 133 to be closer to the second magnet 132 in the left-right direction than the arrangement of the magnets in FIGS. 5(a) and 5(c). can. As a result, in the magnet arrangement of FIGS. 5(b) and 5(d), the third magnetic sensor 123 and the fourth magnetic sensor 124 corresponding to the third magnet 133 are replaced with the second magnetic sensor 122 corresponding to the second magnet 132. In contrast, it can be arranged closer to the left and right. Therefore, the width of the substrate 109 on which the first to fourth magnetic sensors 121, 122, 123, and 124 are provided can be made narrower in the left-right direction, and the substrate 109 can be made smaller.

また、図５（ｂ）（ｄ）の場合、左右の扉で同じ配置となるため、左右の扉で同様の設計とすることができる。また、左右の扉で共通の構成の部材を使用することができ、コストダウンを図ることができる。 Furthermore, in the case of FIGS. 5(b) and 5(d), the left and right doors have the same arrangement, so the left and right doors can have the same design. Further, members having a common configuration can be used for the left and right doors, and costs can be reduced.

なお、図５（ａ）～（ｄ）において、例えば、各磁石のＳ極とＮ極とが入れ替わってもよいし、第１磁石１３１と第２磁石１３２とが、または第３磁石１３３と第４磁石１３４とが、互いに他極が対向するように配置してもよい。このように、各磁石１３１・１３２・１３３・１３４の配置を種々変更することにより、各磁石に対向するように設けられた各磁気センサ１２１・１２２・１２３・１２４で検出される磁力を調整できる。これにより、各開閉検知部１４１・１４２・１４３・１４４の配置の自由度が高くなり、冷蔵庫１００の設計の自由度を高めることができる。 Note that in FIGS. 5(a) to 5(d), for example, the S pole and N pole of each magnet may be exchanged, or the first magnet 131 and the second magnet 132, or the third magnet 133 and the The four magnets 134 may be arranged so that the other poles face each other. In this way, by variously changing the arrangement of each magnet 131, 132, 133, 134, the magnetic force detected by each magnetic sensor 121, 122, 123, 124 provided so as to face each magnet can be adjusted. . This increases the degree of freedom in arranging the opening/closing detection sections 141, 142, 143, and 144, and increases the degree of freedom in designing the refrigerator 100.

さらに、本実施形態の冷蔵庫１００においては、各磁石１３１・１３２・１３３・１３４の極の向きを設定しているため、冷蔵庫１００の組み立て後の検査工程において、各磁石１３１・１３２・１３３・１３４の向きが正しいか否か等の誤実装を容易に検査することができる。 Furthermore, in the refrigerator 100 of this embodiment, since the polar direction of each magnet 131, 132, 133, 134 is set, in the inspection process after assembling the refrigerator 100, each magnet 131, 132, 133, 134 It is possible to easily check for incorrect mounting, such as whether or not the orientation is correct.

また、各磁気センサ１２１・１２２・１２３・１２４で、磁力を常時検知するように構成し、磁力を検査することにより、誤実装を検知することもできる。例えば、磁石の配置の組み合わせのパターンと、各磁気センサ１２１・１２２・１２３・１２４で検出されるべき磁力の大きさとの関係性を予め取得しておき、この関係性に基づいて誤実装を検査すればよい。 Further, by configuring each of the magnetic sensors 121, 122, 123, and 124 to constantly detect magnetic force, and inspecting the magnetic force, it is also possible to detect incorrect mounting. For example, the relationship between the combination pattern of magnet placement and the magnitude of the magnetic force to be detected by each magnetic sensor 121, 122, 123, and 124 is obtained in advance, and incorrect mounting is checked based on this relationship. do it.

（まとめ）
本発明の冷蔵庫は、貯蔵室を有する冷蔵庫本体と、
前記貯蔵室を開閉する第１扉と、
前記第１扉と隣接するとともに、前記貯蔵室を開閉する第２扉と、
前記第１扉または前記冷蔵庫本体の一方に設けられた第１磁石と、前記第１扉または前記冷蔵庫本体の他方に設けられるとともに前記第１扉が閉じた状態で前記第１磁石の磁力値を検出する第１磁気センサとを含み、前記第１扉の開閉を検知する第１検知部と、
前記第２扉または前記冷蔵庫本体の一方に設けられた第２磁石と、前記第２扉または前記冷蔵庫本体の他方に設けられるとともに前記第２扉が閉じた状態で前記第２磁石の磁力値を検出する第２磁気センサとを含み、前記第２扉の開閉を検知する第２検知部と、を備え、
前記第１磁石と、前記第２磁石とは、前記第１扉および前記第２扉が閉じた状態で互いに磁界が干渉する位置に配置されている。 (summary)
The refrigerator of the present invention includes a refrigerator main body having a storage chamber;
a first door that opens and closes the storage room;
a second door that is adjacent to the first door and that opens and closes the storage room;
A first magnet provided on one of the first door or the refrigerator main body, and a magnetic force value of the first magnet provided on the other of the first door or the refrigerator main body with the first door closed. a first detection unit that includes a first magnetic sensor that detects, and detects opening and closing of the first door;
A second magnet provided on one of the second door or the refrigerator main body, and a magnetic force value of the second magnet provided on the other of the second door or the refrigerator main body with the second door closed. a second detection unit that includes a second magnetic sensor that detects, and detects opening and closing of the second door;
The first magnet and the second magnet are arranged at positions where their magnetic fields interfere with each other when the first door and the second door are closed.

また、本発明の冷蔵庫は、次のように構成されてもよく、それらが適宜組み合わされていてもよい。 Moreover, the refrigerator of the present invention may be configured as follows, and these may be appropriately combined.

（１）前記第１磁石と前記第２磁石とは、互いに磁界を弱めあう位置に配置されていてもよい。 (1) The first magnet and the second magnet may be arranged at positions where their magnetic fields are weakened by each other.

（２）前記第１磁石と前記第２磁石とは、互いに同極が対向する方向を向いて配置されていてもよい。 (2) The first magnet and the second magnet may be arranged such that the same poles face each other.

（３）さらに、前記第１扉と隣接するとともに、前記貯蔵室を開閉する第３扉と、
前記第２扉および前記第３扉と隣接するとともに、前記貯蔵室を開閉する第４扉と、
前記第３扉または前記冷蔵庫本体の一方に設けられた第３磁石と、前記第３扉または前記冷蔵庫本体の他方に設けられるとともに前記第３扉が閉じた状態で前記第３磁石の磁力値を検出する第３磁気センサとを含み、前記第３扉の開閉を検知する第３検知部と、
前記第４扉または前記冷蔵庫本体の一方に設けられた第４磁石と、前記第４扉または前記冷蔵庫本体の他方に設けられるとともに前記第４扉が閉じた状態で前記第４磁石の磁力値を検出する第４磁気センサとを含み、前記第４扉の開閉を検知する第４検知部と、を備え、
前記第３磁石と、前記第４磁石とは、前記第３扉と前記第４扉とが閉じた状態で互いに磁界が干渉する位置に配置されていてもよい。 (3) Further, a third door that is adjacent to the first door and opens and closes the storage room;
a fourth door that is adjacent to the second door and the third door and that opens and closes the storage room;
A third magnet provided on one of the third door or the refrigerator main body, and a magnetic force value of the third magnet provided on the other of the third door or the refrigerator main body with the third door closed. a third detection unit that includes a third magnetic sensor that detects, and detects opening and closing of the third door;
A fourth magnet provided on one of the fourth door or the refrigerator main body, and a magnetic force value of the fourth magnet provided on the other of the fourth door or the refrigerator main body with the fourth door closed. a fourth magnetic sensor that detects, and a fourth detection unit that detects opening and closing of the fourth door;
The third magnet and the fourth magnet may be arranged at positions where their magnetic fields interfere with each other when the third door and the fourth door are closed.

（４）前記第３磁石と前記第４磁石とは、互いに磁界を弱めあう位置に配置されていてもよい。 (4) The third magnet and the fourth magnet may be arranged at positions where they mutually weaken their magnetic fields.

（５）前記第３磁石と前記第４磁石とは、互いに同極が対向する方向を向いて配置されていてもよい。 (5) The third magnet and the fourth magnet may be arranged such that the same poles face each other.

（６）前記第１磁石および前記第２磁石と、前記第３磁石および前記第４磁石との磁界の干渉が、無視可能な距離に配置されていてもよい。 (6) The first magnet and the second magnet, and the third magnet and the fourth magnet may be arranged at a distance where interference of magnetic fields can be ignored.

（７）前記第１磁気センサ、前記第２磁気センサ、前記第３磁気センサおよび前記第４磁気センサは、前記冷蔵庫本体に設けられた１つの基板に設けられていてもよい。 (7) The first magnetic sensor, the second magnetic sensor, the third magnetic sensor, and the fourth magnetic sensor may be provided on one substrate provided in the refrigerator main body.

本発明は、上記実施の形態に限定されるものではなく、上記実施の形態で示した構成と実質的に同一の構成、同一の作用効果を奏する構成又は同一の目的を達成することができる構成で置き換えてもよい。 The present invention is not limited to the above embodiments, and the present invention has a structure that is substantially the same as the structure shown in the above embodiment, a structure that has the same effect, or a structure that can achieve the same purpose. You can also replace it with

１００ 冷蔵庫、１０１ 第１扉、１０２ 第２扉、１０３ 第３扉、１０４ 第４扉、１０６ 冷蔵室、１０７ 冷凍室、１０８ 断熱壁、１０９ 基板、１１０ 冷蔵庫本体、１１１ 第１照明部、１１２ 第２照明部、１２１ 第１磁気センサ、１２２ 第２磁気センサ、１２３ 第３磁気センサ、１２４ 第４磁気センサ、１３１ 第４磁石、１３１ 第１磁石、１３２ 第２磁石、１３３ 第３磁石、１３４ 第４磁石、１４１ 第１開閉検出部、１４２ 第２開閉検知部、１４３ 第３開閉検知部、１４４ 第４開閉検知部、４００ 制御部、４０１ 記憶部、４０２ 報知部 100 refrigerator, 101 first door, 102 second door, 103 third door, 104 fourth door, 106 refrigerator compartment, 107 freezer compartment, 108 insulation wall, 109 board, 110 refrigerator main body, 111 first lighting section, 112 2 lighting section, 121 first magnetic sensor, 122 second magnetic sensor, 123 third magnetic sensor, 124 fourth magnetic sensor, 131 fourth magnet, 131 first magnet, 132 second magnet, 133 third magnet, 134 4 magnet, 141 first opening/closing detection section, 142 second opening/closing detection section, 143 third opening/closing detection section, 144 fourth opening/closing detection section, 400 control section, 401 storage section, 402 notification section

Claims (7)

貯蔵室を有する冷蔵庫本体と、
前記貯蔵室を開閉する第１扉と、
前記第１扉と隣接するとともに、前記貯蔵室を開閉する第２扉と、
前記第１扉に設けられた第１磁石と、前記冷蔵庫本体に設けられるとともに前記第１扉が閉じた状態で前記第１磁石の磁力値を検出する第１磁気センサとを含み、前記第１扉の開閉を検知する第１検知部と、
前記第２扉に設けられた第２磁石と、前記冷蔵庫本体に設けられるとともに前記第２扉が閉じた状態で前記第２磁石の磁力値を検出する第２磁気センサとを含み、前記第２扉の開閉を検知する第２検知部と、
前記第１扉と隣接するとともに、前記貯蔵室を開閉する第３扉と、
前記第２扉および前記第３扉と隣接するとともに、前記貯蔵室を開閉する第４扉と、
前記第３扉に設けられた第３磁石と、前記冷蔵庫本体に設けられるとともに前記第３扉が閉じた状態で前記第３磁石の磁力値を検出する第３磁気センサとを含み、前記第３扉の開閉を検知する第３検知部と、
前記第４扉に設けられた第４磁石と、前記冷蔵庫本体に設けられるとともに前記第４扉が閉じた状態で前記第４磁石の磁力値を検出する第４磁気センサとを含み、前記第４扉の開閉を検知する第４検知部と、を備え、
前記第２の磁石に対して、前記第３磁石が前記第４磁石よりも近い位置に配置され、
前記第２磁石と前記第３磁石との磁界の干渉が、無視可能な距離に配置され、
前記第１扉に対する前記第１磁石の配置と前記第３扉に対する前記第３磁石の配置は同じであり、前記第２扉に対する前記第２磁石の配置と前記第４扉に対する前記第４磁石の配置は同じである冷蔵庫。 A refrigerator body having a storage room;
a first door that opens and closes the storage room;
a second door that is adjacent to the first door and that opens and closes the storage room;
The refrigerator includes a first magnet provided on the first door , and a first magnetic sensor provided on the refrigerator main body and detects a magnetic force value of the first magnet when the first door is closed. a first detection unit that detects opening and closing of the first door;
The refrigerator includes a second magnet provided on the second door , and a second magnetic sensor provided on the refrigerator main body and detects a magnetic force value of the second magnet when the second door is closed. a second detection unit that detects opening and closing of the second door;
a third door that is adjacent to the first door and that opens and closes the storage room;
a fourth door that is adjacent to the second door and the third door and that opens and closes the storage room;
The third magnet includes a third magnet provided on the third door, and a third magnetic sensor provided on the refrigerator main body and detects a magnetic force value of the third magnet when the third door is closed. a third detection unit that detects opening and closing of the door;
The fourth magnet includes a fourth magnet provided on the fourth door, and a fourth magnetic sensor provided on the refrigerator main body and detects a magnetic force value of the fourth magnet when the fourth door is closed. A fourth detection unit that detects opening and closing of the door ,
The third magnet is located closer to the second magnet than the fourth magnet,
interference of magnetic fields between the second magnet and the third magnet is located at a negligible distance;
The arrangement of the first magnet with respect to the first door and the arrangement of the third magnet with respect to the third door are the same, and the arrangement of the second magnet with respect to the second door and the arrangement of the fourth magnet with respect to the fourth door are the same. The refrigerator has the same layout . 前記第１磁石と前記第２磁石とは、互いに磁界を弱めあう位置に配置されている、請求項１に記載の冷蔵庫。 The refrigerator according to claim 1, wherein the first magnet and the second magnet are arranged at positions where they mutually weaken their magnetic fields. 前記第１磁石と前記第２磁石とは、互いに同極が対向する方向を向いて配置されている、請求項１または２に記載の冷蔵庫。 The refrigerator according to claim 1 or 2, wherein the first magnet and the second magnet are arranged with the same poles facing each other. 前記第３磁石と前記第４磁石とは、互いに磁界を弱めあう位置に配置されている、請求項１に記載の冷蔵庫。 The refrigerator according to claim 1 , wherein the third magnet and the fourth magnet are arranged at positions where they mutually weaken their magnetic fields. 前記第３磁石と前記第４磁石とは、互いに同極が対向する方向を向いて配置されている、請求項１または４に記載の冷蔵庫。 The refrigerator according to claim 1 or 4 , wherein the third magnet and the fourth magnet are arranged with the same poles facing each other. 前記第１磁石および前記第２磁石と、前記第３磁石および前記第４磁石との磁界の干渉が、無視可能な距離に配置されている、請求項１～５のいずれか１項に記載の冷蔵庫。 The first magnet and the second magnet, and the third magnet and the fourth magnet are arranged at a negligible distance from each other so that interference of magnetic fields is negligible. refrigerator. 前記第１磁気センサ、前記第２磁気センサ、前記第３磁気センサおよび前記第４磁気センサは、前記冷蔵庫本体に設けられた１つの基板に設けられている、請求項１～６のいずれか１項に記載の冷蔵庫。 Any one of claims 1 to 6 , wherein the first magnetic sensor, the second magnetic sensor, the third magnetic sensor, and the fourth magnetic sensor are provided on one substrate provided on the refrigerator main body. Refrigerators listed in section.
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JP2018037228A (en) 2016-08-30 2018-03-08 日東工業株式会社 Detection sensor and structure including the same

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JP2004116817A (en) 2002-09-24 2004-04-15 Hoshizaki Electric Co Ltd Door device of storage shed
JP2013160421A (en) 2012-02-03 2013-08-19 Sharp Corp Refrigerator
JP2018037228A (en) 2016-08-30 2018-03-08 日東工業株式会社 Detection sensor and structure including the same

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