JP5655578B2 - refrigerator - Google Patents
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- JP5655578B2 JP5655578B2 JP2011005798A JP2011005798A JP5655578B2 JP 5655578 B2 JP5655578 B2 JP 5655578B2 JP 2011005798 A JP2011005798 A JP 2011005798A JP 2011005798 A JP2011005798 A JP 2011005798A JP 5655578 B2 JP5655578 B2 JP 5655578B2
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D27/00—Lighting arrangements
Description
本発明は、照明装置を庫内に設置した冷蔵庫に関するものである。 The present invention relates to a refrigerator in which a lighting device is installed in a cabinet.
近年、代表される冷蔵庫の庫内照明として、従来の白熱灯や電球に加えて、白色ＬＥＤを用いるものが提案されている。 In recent years, as interior lighting of a representative refrigerator, one using a white LED in addition to a conventional incandescent lamp or light bulb has been proposed.
従来の照明装置を設けた冷蔵庫としては、複数の白色ＬＥＤを一枚の基板に実装し、庫内天面に設置して庫内を照射しているものがある（例えば、特許文献１参照）。 As a refrigerator provided with a conventional lighting device, there is a refrigerator in which a plurality of white LEDs are mounted on a single substrate and installed on the top surface of the interior to irradiate the interior (see, for example, Patent Document 1). .
図１０は、上記特許文献１に記載された従来の冷蔵庫における照明装置の斜視図を示すものである。 FIG. 10 shows a perspective view of a lighting device in a conventional refrigerator described in Patent Document 1. In FIG.
図１０に示すように、照明装置は、実装基板１０１と、白色ＬＥＤ１０２と、断熱板１０４を具備した構成であり、冷蔵庫の庫内に設置される。 As illustrated in FIG. 10, the lighting device includes a mounting substrate 101, a white LED 102, and a heat insulating plate 104, and is installed in a refrigerator.
実装基板１０１は、平板状に形成されており、一面または両面に回路パターン（図示せず）が形成され、熱伝導性の良好なエポキシ樹脂系の基板や絶縁金属基板を使用する。 The mounting substrate 101 is formed in a flat plate shape, a circuit pattern (not shown) is formed on one surface or both surfaces, and an epoxy resin-based substrate or an insulating metal substrate with good thermal conductivity is used.
白色ＬＥＤ１０２は、砲弾状に形成され、ＧａＮ系の青色ＬＥＤからの青色光を用いて蛍光材を励起し、白色光を得る構造で、電流を通電する２本の通電端子１０３が導出されている。 The white LED 102 is formed in a cannonball shape and has a structure in which white light is obtained by exciting a fluorescent material using blue light from a GaN-based blue LED, and two current-carrying terminals 103 for conducting current are led out. .
断熱板１０４は、ウレタン等の樹脂により平板状に形成され、複数の挿通孔が並設されて、実装基板１０１と白色ＬＥＤ１０２の間に設けられる。ここで、白色ＬＥＤ１０２は、通電端子１０３が断熱板１０４の挿通孔に挿通され、実装基板１０１の回路パターンに半田付けされて実装され、複数個が実装基板１０１に並設される。 The heat insulating plate 104 is formed in a flat plate shape using a resin such as urethane, and is provided between the mounting substrate 101 and the white LED 102 with a plurality of insertion holes arranged in parallel. Here, in the white LED 102, the energization terminal 103 is inserted through the insertion hole of the heat insulating plate 104, soldered to the circuit pattern of the mounting substrate 101, and a plurality of white LEDs 102 are arranged in parallel on the mounting substrate 101.
尚、白色ＬＥＤ１０２の発熱量が少ない場合には、断熱板１０４は廃止しても構わない。 Note that when the amount of heat generated by the white LED 102 is small, the heat insulating plate 104 may be eliminated.
以上のように構成された白色ＬＥＤを照明装置として利用した冷蔵庫について、以下その動作を説明する。 The operation | movement is demonstrated below about the refrigerator using white LED comprised as mentioned above as an illuminating device.
まず、冷蔵庫の扉が閉まっている時には、白色ＬＥＤ１０２への通電は行われないため、庫内は照射されていない。 First, since the white LED 102 is not energized when the refrigerator door is closed, the interior is not illuminated.
そして、扉が開けられると、機械式スイッチやホールＩＣ等の電子式スイッチで開扉状態と判断され、実装基板１０１に直流電圧が印加され、通電端子１０３を通して白色ＬＥＤ１０２に順方向電流が流れ、白色光が発光されて庫内が照射される。 Then, when the door is opened, it is determined that the door is opened by an electronic switch such as a mechanical switch or a Hall IC, a DC voltage is applied to the mounting substrate 101, and a forward current flows to the white LED 102 through the energizing terminal 103. White light is emitted to illuminate the interior.
しかしながら、上記従来の構成は、常に最大の光量で庫内を照射するものであるため、省エネ性に欠け、また冷蔵庫が置かれた環境に適した光量で収納物を照射することができなかった。 However, since the above conventional configuration always irradiates the interior with the maximum light amount, it lacks energy savings, and the stored item could not be irradiated with a light amount suitable for the environment where the refrigerator is placed. .
冷蔵庫は通常、キッチンの室内照明が点灯された環境下で使用されることが多く、庫内照明の光量が低くても庫内を見渡すことができるが、使用者にとって庫内を見難い状況を配慮して、照明の光量を明るく設定せざるを得ない。即ち周囲が明るいときには無駄な消費電力を発生させていることになる。 Refrigerators are usually used in an environment where the interior lighting of the kitchen is lit, and even if the amount of light in the interior is low, the interior can be overlooked, but it is difficult for the user to see the interior. In consideration, the light intensity of the illumination must be set bright. That is, when the surroundings are bright, wasteful power consumption is generated.
また、光量が増加するほど光源の発熱量は高くなり、冷蔵庫の冷却性能の劣化と、照明の寿命低下といった課題が発生する。 Further, as the amount of light increases, the amount of heat generated by the light source increases, causing problems such as deterioration of the cooling performance of the refrigerator and reduction of the lighting life.
或いは、冷蔵庫周囲が暗いときに冷蔵庫の扉を開け、突然明るい庫内照明が点灯すると使用者の目が眩むことがあるため、光量を抑制することが好まれることもある。 Or when the refrigerator door is opened when the surroundings of the refrigerator are dark and the bright interior lighting is suddenly turned on, the user's eyes may be dazzled.
本発明は、上記従来の課題を解決するもので、冷蔵庫周囲の照度に応じて、庫内照明の光量を調節することができる照明装置を具備した冷蔵庫を提供することを目的とする。 This invention solves the said conventional subject, and it aims at providing the refrigerator provided with the illuminating device which can adjust the light quantity of interior lighting according to the illumination intensity around a refrigerator.
上記従来の課題を解決するために、本発明の冷蔵庫は、断熱壁と断熱扉によって区画された収納室を複数設けた筐体と、前記収納室内を照射する庫内照明と、前記収納室のうち最上部の収納室の断熱扉に設けられ、前記筐体周囲の照度を検知する周囲照度検知手段と、前記断熱扉の開閉状態を検知する扉開閉検知手段と、前記扉開閉検知手段が前記断熱扉が開状態になったことを検知した場合の前記周囲照度検知手段による検知照度に応じ、前記庫内照明の光量を調節する制御手段を備え、前記制御手段により、前記断熱扉が連続して開いている場合に、前記庫内照明の光量や点灯パターンを変化させるものである。 In order to solve the above conventional problems, a refrigerator according to the present invention includes a housing provided with a plurality of storage rooms partitioned by a heat insulating wall and a heat insulating door, interior lighting for illuminating the storage room, and Among them, the ambient illuminance detection means for detecting the illuminance around the housing, the door open / close detection means for detecting the open / closed state of the heat insulation door, and the door open / close detection means are provided on the heat insulation door of the uppermost storage chamber. In accordance with the illuminance detected by the ambient illuminance detecting means when it is detected that the heat insulating door is in an open state, the controller includes a control means for adjusting the amount of light of the interior lighting. When it is open, the light quantity and lighting pattern of the interior lighting are changed.
これにより、省エネ性が高く、長寿命で、更に使用者の目にやさしい照明の実現を可能とする。 As a result, it is possible to realize lighting that is highly energy efficient, has a long service life, and is easy on the eyes of the user.
本発明は、省エネ性が高く、長寿命で、更に使用者の目にやさしい照明の実現を可能とするので、より省エネルギーでかつ使い勝手の良い冷蔵庫を提供することが可能となる。 According to the present invention, it is possible to provide lighting that is highly energy-saving, has a long life, and is easy on the eyes of the user. Therefore, it is possible to provide a refrigerator that is more energy-saving and easy to use.
第１の発明は、断熱壁と断熱扉によって区画された収納室を複数設けた筐体と、前記収納室の内部を照射する庫内照明と、前記筐体の周囲の照度を検知する周囲照度検知手段と、前記断熱扉の開閉状態を検知する扉開閉検知手段と、前記扉開閉検知手段によって前記断熱扉が開状態になったことを検知した場合に、前記周囲照度検知手段により検知した検知照度に応じ、前記庫内照明の光量を調節する制御手段を備え、前記制御手段は、前記周囲照度検知手段により、予め設定した照度よりも高照度と判定したときは前記庫内照明の光量を上昇させ、前記予め設定した照度よりも低照度と判定したときは前記庫内照明の光量を低下させるものであり、使用者の周囲の明るさに応じた最適な光量で庫内を照射することができ、省エネ、照明の長寿命化、及び使用者の目にやさしい照明を可能とする。 1st invention is the housing | casing which provided the storage chamber divided by the heat insulation wall and the heat insulation door, the interior illumination which irradiates the inside of the said storage chamber, and the surrounding illumination intensity which detects the illumination intensity of the said housing | casing A detection means, a door open / close detection means for detecting the open / closed state of the heat insulation door, and a detection detected by the ambient illuminance detection means when the door open / close detection means detects that the heat insulation door is opened. Control means for adjusting the light quantity of the interior lighting according to the illuminance, and the control means determines the light quantity of the interior illumination when the ambient illuminance detection means determines that the illuminance is higher than the preset illuminance. When it is determined that the illuminance is lower than the preset illuminance, the light amount of the interior lighting is reduced , and the interior is irradiated with an optimal light amount according to the brightness of the surroundings of the user Can save energy, length of lighting Service life, and to enable the lighting easy on the eyes of the user.
第２の発明は、断熱壁と断熱扉によって区画された収納室を複数設けた筐体と、前記収納室の内部を照射する庫内照明と、前記筐体の周囲の照度を検知する周囲照度検知手段と、前記断熱扉の開閉状態を検知する扉開閉検知手段と、前記扉開閉検知手段によって前記断熱扉が開状態になったことを検知した場合に、前記周囲照度検知手段により検知した検知照度に応じ、前記庫内照明の光量を調節する制御手段を備え、前記制御手段は、前記周囲照度検知手段により、予め設定した照度よりも高照度または低照度と判定したときは前記庫内照明の光量を低下させ、いずれにも該当しないときは光量を上昇させるものであり、周囲が明るいときは庫内照明の光量を抑制して省エネを図り、周囲が暗いときに使用者が眩しさを感じないように庫内照明の光量を抑制し、明るくも暗くもないときには収納物が見やすいように光量を上昇させることができる。 2nd invention is the housing | casing which provided the storage chamber divided by the heat insulation wall and the heat insulation door, the interior lighting which irradiates the inside of the said storage chamber, and the ambient illumination intensity which detects the illumination intensity around the said housing | casing A detection means, a door open / close detection means for detecting the open / closed state of the heat insulation door, and a detection detected by the ambient illuminance detection means when the door open / close detection means detects that the heat insulation door is opened. Control means for adjusting the amount of light of the interior lighting according to the illuminance, and when the control means determines that the ambient light intensity is higher or lower than the preset illumination intensity by the ambient illumination detection means, the interior lighting The amount of light is reduced when it does not correspond to any of the above , and when the surroundings are bright, the amount of light in the interior is suppressed to save energy, and when the surroundings are dark, the user is dazzled. In the warehouse so as not to feel Suppressing the light amount of light, when there is no darker bright can raise the amount of light for easy viewing is stored items.
第３の発明は、第１または第２の発明において、前記庫内照明の光源として、発光ダイオードを用いたものであり、低電圧駆動、低発熱の照明が可能となり、駆動回路の簡易化、制御性の向上、および光源の発熱低減ができる。 According to a third invention, in the first or second invention, a light emitting diode is used as a light source for the interior lighting, and low voltage driving and low heat generation lighting are possible, and the driving circuit is simplified. Controllability can be improved and heat generation of the light source can be reduced.
第４の発明は、第１から第３のいずれかの発明において、前記庫内照明の光量をパルス可変制御によって調節するものであり、デューティー制御による電力調節の手法を用いることができ、これにより、簡易な制御で庫内照明の光量を変化させることができる。 According to a fourth aspect of the present invention, in any one of the first to third aspects of the invention, the light quantity of the interior lighting is adjusted by pulse variable control, and a method of adjusting power by duty control can be used. The light quantity of the interior lighting can be changed with simple control.
第５の発明は、第１から第３のいずれかの発明において、前記庫内照明の光量を電流可変制御によって調節するものであり、電流制限抵抗の切替えなどの手法を使用することで、低光量時にパルス制御で発生する照明のちらつきを無くすことができる。 According to a fifth aspect of the present invention, in any one of the first to third aspects, the light amount of the interior lighting is adjusted by current variable control. By using a method such as switching of a current limiting resistor, It is possible to eliminate flickering of illumination that occurs by pulse control when the amount of light is present.
第６の発明は、第１から第３のいずれかの発明において、前記庫内照明の光量を電圧可変制御によって調節するものであり、照明の電源電圧と電流の両方を抑制することが可能なため、更なる省エネとなる。 According to a sixth invention, in any one of the first to third inventions, the light quantity of the interior lighting is adjusted by voltage variable control, and both the power supply voltage and current of the lighting can be suppressed. Therefore, it becomes further energy saving.
第７の発明は、第１から第３のいずれかの発明において、前記庫内照明は複数の光源で構成され、光量を光源の点灯数によって調節するものであり、消灯した光源の電力をゼロにすることが可能なため、更なる省エネとなる。 In a seventh invention according to any one of the first to third inventions, the interior lighting is composed of a plurality of light sources, and the amount of light is adjusted by the number of lighting of the light sources. This makes it possible to save energy.
第８の発明は、第１から第７のいずれかの発明において、前記収納室内に収納物検知手段を備え、前記周囲照度検知手段と前記収納物検知手段の検知に応じて前記庫内照明の光量を調節するものであり、収納物の陰や光の吸収により収納物が見え難くなることを防止できる。
According to an eighth invention, in any one of the first to seventh inventions, the storage chamber includes a storage object detection unit, and the interior illumination is detected according to the detection of the ambient illuminance detection unit and the storage object detection unit. It adjusts the amount of light and can prevent the stored item from becoming difficult to see due to the shade of the stored item and absorption of light.
以下、本発明の実施の形態について、図面を参照しながら説明する。なお、この実施の形態によってこの発明が限定されるものではない。 Hereinafter, embodiments of the present invention will be described with reference to the drawings. The present invention is not limited to the embodiments.
（実施の形態１）
図１は本発明の実施の形態１における冷蔵庫の正面図、図２は同実施の形態における冷蔵庫の図１のＡ−Ａ側面断面図、図３は同実施の形態における冷蔵庫の制御ブロック図、
図４は同実施の形態における冷蔵庫をキッチンのコーナー部に設置したときの上視図である。
(Embodiment 1)
1 is a front view of a refrigerator according to Embodiment 1 of the present invention, FIG. 2 is a cross-sectional side view taken along line AA of FIG. 1 of the refrigerator according to the embodiment, and FIG. 3 is a control block diagram of the refrigerator according to the embodiment.
FIG. 4 is a top view when the refrigerator according to the embodiment is installed in the corner of the kitchen.
図１、図２、および図３において、冷蔵庫１の筐体は、断熱壁２と断熱扉３ａ，３ｂで周囲と断熱して構成されている。冷蔵庫１は、収納室４内に保存物を整理して保存するために複数の収納棚５が設けられている。 1, 2, and 3, the casing of the refrigerator 1 is configured to be thermally insulated from the surroundings by a heat insulating wall 2 and heat insulating doors 3 a and 3 b. The refrigerator 1 is provided with a plurality of storage shelves 5 for organizing and storing stored items in the storage chamber 4.
断熱扉３ｂには、表示部６が設けられ冷蔵庫の動作設定状況等を表示する。また、表示部６上には外部照度検知手段として照度センサ７が実装されている。 The heat insulation door 3b is provided with a display unit 6 to display the operation setting status of the refrigerator. An illuminance sensor 7 is mounted on the display unit 6 as external illuminance detection means.
照度センサ７は冷蔵庫１の複数の収納室のうち、最上部の収納室の断熱扉に設けられており、使用者の目の位置に近い高さにあるので、使用者が感じる照度と同等の明るさを検知することができる。 The illuminance sensor 7 is provided on the heat insulating door of the uppermost storage room among the plurality of storage rooms of the refrigerator 1 and is at a height close to the position of the user's eyes, so it is equivalent to the illuminance felt by the user. Brightness can be detected.
この使用者の目に近い高さは、図のような一般的な５つの貯蔵室を備え、収納量がおよそ４００Ｌ〜６００Ｌの冷蔵庫においては、最上部の貯蔵室の高さ方向における１／２付近および最上端から最上部の貯蔵室の高さ方向における１／５程度を指している。 The height close to the eyes of the user is provided with five general storage rooms as shown in the figure, and in a refrigerator having a storage capacity of about 400L to 600L, it is ½ in the height direction of the uppermost storage room. It indicates about 1/5 in the height direction of the uppermost storage chamber from the vicinity and the uppermost end.
また、収納室４の室内側壁には、冷蔵庫１の正面から見て左右に、庫内照明８が埋設されている。庫内照明８は、上下方向に白色ＬＥＤ９ａ〜９ｄが複数個配置され、収納室４の手前側から奥側を照射するように設置されている。 In addition, interior lighting 8 is embedded in the indoor side wall of the storage chamber 4 on the left and right as viewed from the front of the refrigerator 1. The interior lighting 8 has a plurality of white LEDs 9 a to 9 d arranged in the vertical direction, and is installed so as to irradiate the back side from the front side of the storage chamber 4.
このように、光源に白色ＬＥＤを用いることにより、電圧変動にスムーズに対応でき、さらに低電圧駆動、低発熱の照明が可能となり、駆動回路の簡易化、制御性の向上、および光源の発熱低減が期待できる。 In this way, by using a white LED as the light source, it is possible to respond smoothly to voltage fluctuations, and further enable illumination with low voltage driving and low heat generation, simplifying the drive circuit, improving controllability, and reducing heat generation of the light source. Can be expected.
また、断熱扉３ａ及び３ｂの開閉状態を検知するために、収納室４の前面開口周縁に扉開閉検知手段１０が設けられている。 Further, in order to detect the open / closed state of the heat insulating doors 3 a and 3 b, a door open / close detecting means 10 is provided on the front opening periphery of the storage chamber 4.
制御手段１１は、断熱扉３ａ及び３ｂが開いていると検知したときに、庫内照明８を点灯させる。このとき、庫内照明の光量は照度センサ７の検知照度を受けて調節する。 When the control means 11 detects that the heat insulating doors 3a and 3b are open, the interior lighting 8 is turned on. At this time, the light quantity of the interior lighting is adjusted by receiving the illuminance detected by the illuminance sensor 7.
冷蔵庫１がキッチンのコーナー部に設置されている場合は、図４のように、断熱扉３ｂが開いたときに、照度センサ７の取り付け面が壁に近接することがある。このとき、照度センサ７の前面は壁に遮られ周囲の光が入射しないため、実際の周囲照度よりも暗いと誤検知してしまう。そこで、制御手段１１は、照度センサ７からの検知照度を随時記憶し、断熱扉３ｂが開いたと検知する直前、または直後の検知照度によって、庫内照明の光量を決定するものとする。 When the refrigerator 1 is installed in the corner of the kitchen, the attachment surface of the illuminance sensor 7 may be close to the wall when the heat insulating door 3b is opened as shown in FIG. At this time, since the front surface of the illuminance sensor 7 is blocked by the wall and ambient light does not enter, it is erroneously detected as darker than the actual ambient illuminance. Therefore, the control means 11 stores the detected illuminance from the illuminance sensor 7 at any time, and determines the light amount of the interior illumination according to the detected illuminance immediately before or immediately after detecting that the heat insulating door 3b is opened.
照度センサ７による検知照度と庫内照明８の光量の関係は、例えば表１のようになる。 The relationship between the illuminance detected by the illuminance sensor 7 and the light quantity of the interior lighting 8 is as shown in Table 1, for example.
表１には、照度センサ７の検知照度Ｌに対する庫内照明８の光量変化パターンを３種類示しており、庫内照明８の光量は最大光量を１００％としたときの相対値で記載している。 Table 1 shows three types of light quantity change patterns of the interior lighting 8 with respect to the detected illuminance L of the illuminance sensor 7, and the light quantity of the interior lighting 8 is described as a relative value when the maximum light quantity is 100%. Yes.
表１において、パターン１は、照度センサ７が予め設定した照度である基準照度である周囲照度１５ルクス以下を検知したときは暗いと判定し、庫内照明８の光量を１００％とする。また、周囲照度４０ルクス以下を検知したときは、やや暗いと判定し、少し弱めの照明でも庫内の収納物を見渡せることから庫内照明８の光量を７５％とする。更に、周囲照度が４０ルクスを越えると検知したときは、明るいと判定し、周囲の光も庫内の収納物を照射することから庫内照明８の光量を５０％とする。このように、冷蔵庫使用時は、周囲が明るいことが多いため、庫内照明８の光量を抑制することができ、消費電力を低減することが可能となる。 In Table 1, the pattern 1 is determined to be dark when the illuminance sensor 7 detects an ambient illuminance of 15 lux or less, which is a reference illuminance that is preset, and the light amount of the interior illumination 8 is set to 100%. When the ambient illuminance of 40 lux or less is detected, it is determined that it is slightly dark, and the amount of light in the interior lighting 8 is set to 75% because the contents stored in the interior can be seen even with slightly weaker illumination. Further, when it is detected that the ambient illuminance exceeds 40 lux, it is determined to be bright, and the ambient light also illuminates the stored items in the warehouse, so the light quantity of the interior lighting 8 is set to 50%. Thus, since the surroundings are often bright when using the refrigerator, the amount of light in the interior lighting 8 can be suppressed, and the power consumption can be reduced.
このように、パターン１は周囲照度と庫内照明８の両方を足し合わせた場合の明るさで使用者が収納物を探す際の庫内照明の機能を果たすことを目的にしている。 Thus, the pattern 1 is intended to fulfill the function of the interior lighting when the user searches for the stored item with the brightness when both the ambient illuminance and the interior lighting 8 are added.
パターン２は、照度センサ７が周囲照度１５ルクス以下を検知したときは暗いと判定し、庫内照明８を眩しく感じる使用者のために、光量を５０％とする。また、周囲照度４０ルクス以下を検知したときは、やや暗いと判定し、眩しくなく、且つ収納物を見易い光量である７５％とする。更に、周囲照度が４０ルクスを越えると検知したときは、明るいと判定し、庫内照明８が点灯していることを実感できる１００％とする。このように、庫内照明８の光量を抑制することができ、消費電力を低減することができるだけでなく、使用者の眩しさや収納物の見やすさに配慮することが可能となる。 The pattern 2 is determined to be dark when the illuminance sensor 7 detects an ambient illuminance of 15 lux or less, and the light amount is set to 50% for the user who feels the interior lighting 8 dazzling. When ambient illuminance of 40 lux or less is detected, it is determined to be slightly dark, and the amount of light is 75% which is not dazzling and allows easy viewing of the stored items. Furthermore, when it is detected that the ambient illuminance exceeds 40 lux, it is determined to be bright, and is set to 100% at which it can be felt that the interior lighting 8 is turned on. Thus, not only can the light quantity of the interior lighting 8 be suppressed and the power consumption can be reduced, but also it is possible to consider the glare of the user and the visibility of the stored items.
このように、パターン２は、使用者の官能的な要素に着眼点を置き、使用者が視覚的に眩しくないように暗い場合には低い照度で収納物を照らすことによって、目に優しく体感的に違和感のないユニバーサルデザインを目的とした機能を果たすことを目的としている。 In this way, the pattern 2 focuses on the user's sensual elements, and when the user is dark so that the user is not visually dazzling, the pattern 2 is gently sensible to the eyes. The purpose is to fulfill the functions aimed at universal design without any discomfort.
パターン３は、照度センサ７が周囲照度１５ルクス以下を検知したときは暗いと判定し、庫内照明８を眩しく感じる使用者のために、光量を５０％とする。また、周囲照度４０ルクス以下を検知したときは、やや暗いと判定し、このときは眩しいと感じない使用者の
ために、収納物が最も見易い光量である１００％とする。更に、周囲照度が４０ルクスを越えると検知したときは、明るいと判定し、周囲の光も庫内の収納物を照射することから庫内照明８の光量を５０％とする。このように、パターン１、２の長所を併せ持つ構成としている。
The pattern 3 is determined to be dark when the illuminance sensor 7 detects an ambient illuminance of 15 lux or less, and the light amount is set to 50% for a user who feels the interior lighting 8 dazzling. When ambient illuminance of 40 lux or less is detected, it is determined to be slightly dark, and at this time, for a user who does not feel dazzling, the stored amount is set to 100%, which is the most easily observable light amount. Further, when it is detected that the ambient illuminance exceeds 40 lux, it is determined to be bright, and the ambient light also illuminates the stored items in the warehouse, so the light quantity of the interior lighting 8 is set to 50%. In this way, the configuration has the advantages of the patterns 1 and 2.
このように、最も冷蔵庫の開閉頻度が高いと想定される周囲が明るい場合に庫内照明８の光量を５０％としていることから、より省エネルギーを実現することが可能となる。よって、パターン３のような使用頻度が高いと想定される場合に省エネルギーを実現できるパターンを選択した場合には、冷蔵庫の外側のドアもしくは筐体といった使用者の目に触れる場所に、省エネルギーを連想させるような点灯や表示を行うと良い。 Thus, when the surroundings where the frequency of opening and closing of the refrigerator is assumed to be the highest is bright, the amount of light of the interior lighting 8 is set to 50%, so that further energy saving can be realized. Therefore, when a pattern that can achieve energy saving is selected when the usage frequency is assumed to be high, such as pattern 3, energy saving is associated with a place that can be seen by the user, such as a door or casing outside the refrigerator. It is good to perform lighting and display to make it.
以上のパターン１からパターン３は、操作部（図示せず）から使用者が好みに応じて設定できる構成としても良い。 The above pattern 1 to pattern 3 may be configured to be set by the user according to preference from an operation unit (not shown).
その場合には、例えば、視覚に問題がなく常に明るい方が好ましい使用者はパターン１を選択し、高齢者や子供といった視覚に負荷がかからない方が望ましい使用者がいる家庭はパターン２を選択し、より省エネルギーを意識している家庭はパターン３を選択するといった具合に使用者が選択できる幅が広がり、より使い勝手が良く、省エネルギーにも対応することが可能な冷蔵庫を提供することが可能となる。 In such a case, for example, a user who has no visual problems and is always bright and prefers pattern 1 selects pattern 1, and a household that has a user who is desirable to be not visually burdened, such as an elderly person or a child, selects pattern 2. In addition, households that are more conscious of energy conservation have a wider range of user choices, such as selecting pattern 3, making it possible to provide a refrigerator that is more user-friendly and can also support energy conservation. .
また、表１の周囲照度Ｌや、庫内照明８の相対光量は、表内に記載した値に限らず、冷蔵庫の構成によって最適な値に設定すべきである。 Further, the ambient illuminance L in Table 1 and the relative light quantity of the interior lighting 8 are not limited to the values described in the table, but should be set to optimum values depending on the configuration of the refrigerator.
次に、庫内照明８の光量の調節手段について説明する。 Next, a means for adjusting the light amount of the interior lighting 8 will be described.
図５は本発明の実施の形態１における冷蔵庫の庫内照明への出力を示すタイムチャート、図６は本発明の実施の形態１における冷蔵庫の庫内照明への出力変化を示すタイムチャートである。 FIG. 5 is a time chart showing the output to the refrigerator interior lighting in Embodiment 1 of the present invention, and FIG. 6 is a time chart showing the output change to the refrigerator interior lighting in Embodiment 1 of the present invention. .
例えば、庫内照明８の光量の調整は、出力電圧のデューティー制御により、白色ＬＥＤ９ａ〜９ｄに流す実効電力を調節することで行う。図５のように、出力パルス幅をＴ１、パルスの周期をＴ２とし、外部照度の検出値に応じてデューティー比Ｔ１／Ｔ２を変化させる。Ｔ１／Ｔ２は、使用者が白色ＬＥＤ９ａ〜９ｄのちらつきを感じないレベルに設定する。 For example, the light amount of the interior lighting 8 is adjusted by adjusting the effective power that flows through the white LEDs 9a to 9d by duty control of the output voltage. As shown in FIG. 5, the output pulse width is T1, the pulse period is T2, and the duty ratio T1 / T2 is changed according to the detected value of the external illuminance. T1 / T2 is set to a level at which the user does not feel the flickering of the white LEDs 9a to 9d.
また、庫内照明８が点灯するとき、突然１００％の光量で点灯すると、使用者は眩さを感じ、不快感を受ける。そこで、所定の明るさになるまで徐々に光量を変化させてもよい。 Further, when the interior lighting 8 is turned on, if the light is suddenly turned on with a light amount of 100%, the user feels dazzling and feels uncomfortable. Therefore, the amount of light may be gradually changed until a predetermined brightness is obtained.
図６のように、点灯開始直後はＴ３／Ｔ４＝１０％（ステップ１）、以降は所定時間毎に、Ｔ５／Ｔ６＝４０％（ステップ２）、Ｔ７／Ｔ８＝７０％（ステップ３）と徐々にデューティー比を１００％まで変化させることで、やわらかく点灯する照明となる。本例では、デューティー比を３段階にわたって変化させているが、より細かくデューティー比の変化段階を増加することで更にスムーズに光量を変化できる。 As shown in FIG. 6, T3 / T4 = 10% (step 1) immediately after the start of lighting, and thereafter, T5 / T6 = 40% (step 2) and T7 / T8 = 70% (step 3) at predetermined time intervals. By gradually changing the duty ratio to 100%, the lighting is softly lit. In this example, the duty ratio is changed in three stages, but the light quantity can be changed more smoothly by increasing the duty ratio changing stage more finely.
尚、庫内照明８を暫く点灯させていると明るさに使用者の目が慣れてくるため、光量を若干下げても収納物を十分に確認できるようになる。よって、庫内照明８が点灯してから所定時間が経過したときは、少しずつデューティー比を下げることで消費電力を抑制しても良い。 When the interior lighting 8 is turned on for a while, the user's eyes become accustomed to the brightness, so that the stored items can be sufficiently confirmed even if the amount of light is slightly reduced. Therefore, when a predetermined time has elapsed since the interior lighting 8 is turned on, the power consumption may be suppressed by gradually decreasing the duty ratio.
図７は、本実施の形態１における冷蔵庫の庫内照明の光量可変回路図である。 FIG. 7 is a light amount variable circuit diagram of the interior lighting of the refrigerator in the first embodiment.
庫内照明８の光量の調節手段として、例えば図７のような回路を構成し、ＳＷ１〜３のスイッチを切り替えて庫内照明８への供給電流をＩ１〜Ｉ３と変更する手段を用いても良い。供給電流Ｉ１〜Ｉ３は、それぞれ抵抗値が異なる抵抗器Ｒ１〜Ｒ３によって決定される。 As a means for adjusting the light quantity of the interior lighting 8, for example, a circuit as shown in FIG. 7 is configured, and a means for changing the supply current to the interior lighting 8 to I1 to I3 by switching the switches SW1 to SW3 is used. good. The supply currents I1 to I3 are determined by resistors R1 to R3 having different resistance values, respectively.
また、庫内照明８の光量の調節手段として、例えば図２に示した複数の白色ＬＥＤ９ａ〜９ｄのうち、半数の２つだけを点灯させる、或いは３／４の３つだけを点灯させる等の手段を用いても良い。 Further, as a means for adjusting the light quantity of the interior lighting 8, for example, only half of the plurality of white LEDs 9a to 9d shown in FIG. 2 are turned on, or only 3/4 are turned on. Means may be used.
以上のように、本実施の形態においては、断熱壁２と断熱扉３ａ、３ｂによって区画された収納室４内を照射する庫内照明８と、複数の収納室のうち最上部の収納室の断熱扉に設けられ、冷蔵庫１の周囲照度を検知する照度センサ７と、断熱扉３ａ、３ｂの開閉状態を検知する扉開閉検知手段１０と、扉開閉検知手段１０が断熱扉３ａ、３ｂが開状態になったことを検知した直前、または直後の照度センサ７による検知照度に応じ、庫内照明８の光量を調節する制御手段１１を備えたものであり、使用者の周囲の明るさに応じた最適な光量で庫内を照射することができ、省エネ性が高く、長寿命で、更に使用者の目にやさしい照明の実現を可能とする。 As described above, in the present embodiment, the interior lighting 8 that irradiates the interior of the storage room 4 partitioned by the heat insulating wall 2 and the heat insulating doors 3a and 3b, and the uppermost storage room among the plurality of storage rooms. An illuminance sensor 7 for detecting ambient illuminance of the refrigerator 1, a door open / close detection means 10 for detecting the open / closed state of the heat insulation doors 3 a and 3 b, and the door open / close detection means 10 are opened on the heat insulation doors 3 a and 3 b. The control means 11 is provided for adjusting the amount of light of the interior lighting 8 according to the illuminance detected by the illuminance sensor 7 immediately before or immediately after detecting that the state has been reached. It is possible to illuminate the interior with the optimal amount of light, realizing energy saving, long life, and user-friendly lighting.
また、本実施の形態では、庫内照明８の光源として、発光ダイオード９ａ〜ｄを用いたものであり、低電圧駆動、低発熱の照明が可能となり、駆動回路の簡易化、制御性の向上、および光源の発熱低減ができる。 In the present embodiment, the light emitting diodes 9a to 9d are used as the light source of the interior lighting 8, which enables low voltage driving and low heat generation lighting, simplification of the driving circuit, and improvement of controllability. And the heat generation of the light source can be reduced.
また、本実施の形態では、制御手段１１により、断熱扉３ａ、３ｂが連続して開いている時間に伴い、庫内照明８の光量や点灯パターンを変化させるものであり、使用者の明るさに対する目の慣れに応じて、徐々に庫内照明の光量を上げる、または下げる制御を行うことができ、使用者の目に優しい照明を実現することができる。 Moreover, in this Embodiment, the light quantity and lighting pattern of the interior lighting 8 are changed with the time when the heat insulation doors 3a and 3b are continuously opened by the control means 11, and a user's brightness. In accordance with the familiarity of the eyes, it is possible to gradually increase or decrease the amount of light of the interior lighting, and it is possible to realize lighting that is gentle to the eyes of the user.
（実施の形態２）
図８は本発明の実施の形態２における冷蔵庫の側面断面図、図９は同実施の形態における冷蔵庫の制御ブロック図である。ここで、実施の形態１と同一の構成要件については、同一の符号を付して詳細な説明を省略する。
(Embodiment 2)
FIG. 8 is a side sectional view of the refrigerator according to Embodiment 2 of the present invention, and FIG. 9 is a control block diagram of the refrigerator according to the embodiment. Here, the same constituent elements as those of the first embodiment are denoted by the same reference numerals, and detailed description thereof is omitted.
図８および図９において、収納物検知手段１２は、収納室４内に設置されている。この収納物検知手段１２は収納物の位置や量を検知するもので、照度センサによって、収納物による光の遮蔽で減衰する光量を検知することで実現している。他にも、圧力センサによって収納物を検知する手法も考えられる。 8 and 9, the stored item detection means 12 is installed in the storage chamber 4. The stored item detection means 12 detects the position and amount of the stored item, and is realized by detecting the amount of light attenuated by the shielding of the light by the stored item with an illuminance sensor. In addition, a method of detecting a stored item with a pressure sensor is also conceivable.
実施の形態１では、照度センサ７による検知照度のみによって庫内照明８の光量を調節していたが、収納室４内に多くの収納物があった場合、収納物の影によって庫内を十分に照射できないことが考えられる。このため、冷蔵庫周囲の明るさだけではなく、収納物の位置や量も配慮し、庫内照明８の光量を調節することが望ましい。 In the first embodiment, the light amount of the interior lighting 8 is adjusted only by the illuminance detected by the illuminance sensor 7. However, when there are many stored items in the storage room 4, the interior of the store is sufficiently covered by the shadow of the stored items. It may be impossible to irradiate. For this reason, it is desirable to adjust the light quantity of the interior lighting 8 in consideration of not only the brightness around the refrigerator but also the position and amount of the stored items.
表２には、収納量に対しての庫内照明の光量補正値を示している。 Table 2 shows the light amount correction value of the interior lighting with respect to the storage amount.
表２の庫内照明の光量は、表１を基準として、表２の補正値を加算するものである。例えば、収納物検知手段１２が、収納量が少ないと検知したときは、庫内の隅々まで光が届きやすいので光量をマイナス２０％とする。また、収納量がやや多いと検知したときは補正を行わず、収納量が多いと検知したときは、庫内に光が届き難くなるため光量をプラス２０％としている。 The light quantity of the interior lighting in Table 2 is obtained by adding the correction values in Table 2 with Table 1 as a reference. For example, when the stored item detection means 12 detects that the stored amount is small, the light amount is set to minus 20% because light easily reaches every corner of the storage. Further, when it is detected that the storage amount is slightly large, correction is not performed, and when it is detected that the storage amount is large, the light amount is set to plus 20% because it becomes difficult for light to reach the inside of the cabinet.
以上のように、本実施の形態では、収納室４内に収納物検知手段１２を備え、冷蔵庫の周囲照度だけではなく、庫内の収納物も検知することで、使用者にとって必要な光量で庫内を照射し、より使い勝手の良い照明を実現することができる。 As described above, in the present embodiment, the stored object detection means 12 is provided in the storage room 4, and not only the ambient illuminance of the refrigerator but also the stored contents in the refrigerator can be detected with a light amount necessary for the user. Irradiation of the inside of the cabinet can realize more convenient lighting.
以上のように、本発明にかかる冷蔵庫は、家庭用又は業務用冷蔵庫の照明装置として適用する場合に実施することはもちろん、扉のある物品貯蔵装置等、照明を適用する幅広い設備機器に応用できるものである。 As described above, the refrigerator according to the present invention can be applied to a wide range of equipment to which lighting is applied, such as an article storage device with a door, as well as being applied as a lighting device for a household or commercial refrigerator. Is.
１ 冷蔵庫
２ 断熱壁
３ａ、３ｂ 断熱扉
４ 収納室
５ 収納棚
６ 表示部
７ 照度センサ
８ 庫内照明
９ａ、９ｂ、９ｃ、９ｄ 白色ＬＥＤ
１０ 扉開閉検知手段
１１ 制御手段
１２ 収納物検知手段
DESCRIPTION OF SYMBOLS 1 Refrigerator 2 Heat insulation wall 3a, 3b Heat insulation door 4 Storage room 5 Storage shelf 6 Display part 7 Illuminance sensor 8 Interior lighting 9a, 9b, 9c, 9d White LED
10 Door Open / Close Detection Unit 11 Control Unit 12 Storage Object Detection Unit
Claims (8)
ら３のいずれか一項に記載の冷蔵庫。 The refrigerator according to any one of claims 1 to 3 , wherein the interior lighting is configured by a plurality of light sources, and the amount of light is adjusted according to the number of lighting of the light sources.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2011005798A JP5655578B2 (en) | 2011-01-14 | 2011-01-14 | refrigerator |
| PCT/JP2011/007320 WO2012095937A1 (en) | 2011-01-14 | 2011-12-27 | Refrigerator |
| BR112013017701A BR112013017701A2 (en) | 2011-01-14 | 2011-12-27 | refrigerator |
| CN201180064685.0A CN103328912B (en) | 2011-01-14 | 2011-12-27 | Refrigerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2011005798A JP5655578B2 (en) | 2011-01-14 | 2011-01-14 | refrigerator |
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| JP2012145303A JP2012145303A (en) | 2012-08-02 |
| JP5655578B2 true JP5655578B2 (en) | 2015-01-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| JP2011005798A Active JP5655578B2 (en) | 2011-01-14 | 2011-01-14 | refrigerator |
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| JP (1) | JP5655578B2 (en) |
| CN (1) | CN103328912B (en) |
| BR (1) | BR112013017701A2 (en) |
| WO (1) | WO2012095937A1 (en) |
Families Citing this family (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015041900A1 (en) * | 2013-09-19 | 2015-03-26 | The Regents Of The University Of California | Refrigerator with dynamic control of spectral illumination features for enhanced way finding and dark adaptation |
| DE102013225958A1 (en) | 2013-12-13 | 2015-06-18 | BSH Hausgeräte GmbH | Household refrigeration appliance with an interior lighting |
| JP6478083B2 (en) * | 2014-02-20 | 2019-03-06 | パナソニックＩｐマネジメント株式会社 | refrigerator |
| DE102014205727A1 (en) * | 2014-03-27 | 2015-10-01 | BSH Hausgeräte GmbH | Household refrigeration appliance with an interior lighting |
| CN104976853A (en) * | 2014-04-10 | 2015-10-14 | 博西华电器（江苏）有限公司 | Refrigerating device |
| KR101723169B1 (en) * | 2015-06-18 | 2017-04-05 | 동부대우전자 주식회사 | Apparatus and method for controlling a refrigerator according to surrounding brightness |
| CN105323934B (en) * | 2015-11-27 | 2018-07-13 | 青岛海尔股份有限公司 | A kind of illumination control method of refrigerator |
| JP6591069B2 (en) * | 2016-07-15 | 2019-10-16 | 三菱電機株式会社 | refrigerator |
| JP2018096686A (en) * | 2018-01-25 | 2018-06-21 | パナソニックＩｐマネジメント株式会社 | Refrigerator |
| JP6671002B2 (en) * | 2018-04-16 | 2020-03-25 | パナソニックＩｐマネジメント株式会社 | refrigerator |
| CN111023686A (en) * | 2019-12-27 | 2020-04-17 | 周少卫 | Light-sensing energy-saving noise reduction system of refrigerator |
| DE102021204155A1 (en) * | 2021-04-27 | 2022-10-27 | BSH Hausgeräte GmbH | Method for illuminating a spatial area of a household appliance adapted to the environment, and household appliance |
| CN113340046A (en) * | 2021-05-14 | 2021-09-03 | 澳柯玛股份有限公司 | Automatic brightness adjusting system and method for refrigerator illuminating lamp |
| DE102021214674A1 (en) | 2021-12-20 | 2023-06-22 | BSH Hausgeräte GmbH | Household appliance with a multi-sensor circuit board |
| CN114543431B (en) * | 2022-01-13 | 2023-05-12 | 珠海格力电器股份有限公司 | Lighting system of ultralow temperature preservation box and control method thereof |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10136223A1 (en) * | 2001-07-25 | 2003-02-13 | Bsh Bosch Siemens Hausgeraete | Refrigerator with interior lighting |
| JP2005055134A (en) * | 2003-08-07 | 2005-03-03 | Sharp Corp | Refrigerator |
| DE102004021858A1 (en) * | 2004-05-04 | 2005-12-01 | BSH Bosch und Siemens Hausgeräte GmbH | Household appliance with interior lighting and lighting assembly therefor |
| JP4420845B2 (en) * | 2005-03-25 | 2010-02-24 | 三洋電機株式会社 | Showcase |
| DE102006040192B4 (en) * | 2005-08-29 | 2018-12-27 | Lg Electronics Inc. | Apparatus and method for controlling a refrigerator lamp |
| JP2008070000A (en) * | 2006-09-12 | 2008-03-27 | Matsushita Electric Ind Co Ltd | Storage |
| JP2008164218A (en) * | 2006-12-28 | 2008-07-17 | Matsushita Electric Ind Co Ltd | Refrigerator |
| JP5082778B2 (en) * | 2007-11-06 | 2012-11-28 | パナソニック株式会社 | refrigerator |
| JP2009115408A (en) * | 2007-11-08 | 2009-05-28 | Panasonic Corp | Refrigerator |
| JP5340582B2 (en) * | 2007-11-22 | 2013-11-13 | 三洋電機株式会社 | Showcase |
| JP2010197036A (en) * | 2008-12-24 | 2010-09-09 | Panasonic Corp | Refrigerator |
| JP2010281481A (en) * | 2009-06-03 | 2010-12-16 | Panasonic Corp | Refrigerator |
| CN201726574U (en) * | 2010-07-23 | 2011-01-26 | 海信容声(广东)冰箱有限公司 | Automatic control device of interior light of box body |
-
2011
- 2011-01-14 JP JP2011005798A patent/JP5655578B2/en active Active
- 2011-12-27 WO PCT/JP2011/007320 patent/WO2012095937A1/en active Application Filing
- 2011-12-27 BR BR112013017701A patent/BR112013017701A2/en not_active Application Discontinuation
- 2011-12-27 CN CN201180064685.0A patent/CN103328912B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN103328912A (en) | 2013-09-25 |
| BR112013017701A2 (en) | 2016-10-11 |
| WO2012095937A1 (en) | 2012-07-19 |
| JP2012145303A (en) | 2012-08-02 |
| CN103328912B (en) | 2015-04-08 |
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