JP2017012508A

JP2017012508A - Washing machine

Info

Publication number: JP2017012508A
Application number: JP2015132898A
Authority: JP
Inventors: 育夫林田; Ikuo Hayashida
Original assignee: Toshiba Lifestyle Products and Services Corp
Current assignee: Toshiba Lifestyle Products and Services Corp
Priority date: 2015-07-01
Filing date: 2015-07-01
Publication date: 2017-01-19

Abstract

PROBLEM TO BE SOLVED: To provide a washing machine capable of securing lifetime of an illumination device, by restraining a temperature of the illumination device for illuminating the inside of a rotary tub from becoming high.SOLUTION: A washing machine 1 includes: a water tub 8 provided inside a housing 3; a rotary tub 11 provided rotatably inside the water tub 8; an illumination device 40 for illuminating the inside of the rotary tub 11; an illumination control part 20 for controlling lighting of the illumination device 40; and detection means 42 for detecting which temperature state the rotary tub 11 is in, out of a normal temperature state and a high temperature state in which the temperature in the rotary tub 11 is higher than that in the normal state. In the washing machine, when lighting the illumination device 40 or when the illumination device 40 is lighted, when the detection means 42 detects the high temperature state, the illumination control part 20 prohibits lighting of the illumination device 40 or decreases a light emission amount or shortens light emission time of the illumination device 40 compared to the case where the normal state is detected.SELECTED DRAWING: Figure 4

Description

本発明の実施形態は洗濯機に関する。 Embodiments described herein relate generally to a washing machine.

従来より、暗所において洗濯物の出し入れを容易にしたり、運転中に内部の状況を目視確認したりするために、回転槽の内部を照明する照明装置を備えた洗濯機が提案されている（例えば、下記特許文献１〜４参照）。 Conventionally, a washing machine including an illuminating device that illuminates the inside of a rotating tub has been proposed in order to facilitate loading and unloading of laundry in a dark place and to visually check the internal state during operation (see FIG. For example, see Patent Documents 1 to 4 below).

近年、回転槽の高容量化や照明装置の高輝度化に対する要請が強いことから、限られたスペースに高輝度の照明装置を配設する必要があり、照明装置の小型化及び高輝度化が図られている。そのため、照明装置の発熱量が大きくなる一方で放熱量を確保することが困難となり、照明装置が高温となりやすく照明装置の寿命が短くなりやすい。 In recent years, there has been a strong demand for higher capacity of the rotating tank and higher brightness of the lighting device. Therefore, it is necessary to install a high-brightness lighting device in a limited space. It is illustrated. For this reason, it is difficult to ensure the amount of heat dissipation while increasing the amount of heat generated by the lighting device, and the lighting device tends to be hot and the life of the lighting device tends to be shortened.

特開２０００−１５７７８１号公報JP 2000-157781 A 特開平４−３４４３２９号公報JP-A-4-344329 特開平９−７６２０７号公報JP-A-9-76207 特開平９−７６２０６号公報JP-A-9-76206

そこで、回転槽の内部を照明する照明装置が高温になるのを抑え、照明装置の寿命を確保することができる洗濯機を提供することを目的とする。 Then, it aims at providing the washing machine which can suppress that the illuminating device which illuminates the inside of a rotation tank becomes high temperature, and can ensure the lifetime of an illuminating device.

本実施形態の洗濯機は、筐体の内部に設けられた水槽と、前記水槽の内部に回転可能に設けられた回転槽と、前記回転槽の内部を照明する照明装置と、前記照明装置の点灯を制御する照明制御部と、前記回転槽が常温状態と常温状態より前記回転槽内の温度が高い高温状態のいずれの温度状態にあるのかを検出する検出手段とを備えた洗濯機において、前記照明制御部は、前記照明装置を点灯させるときに、前記検出手段が高温状態を検出すると常温状態を検出した場合に比べて発光量を低下する又は発光時間を短縮するものである。 The washing machine according to the present embodiment includes a water tank provided inside a housing, a rotating tank provided rotatably inside the water tank, a lighting device that illuminates the inside of the rotating tank, and the lighting device. In a washing machine comprising: an illumination control unit that controls lighting; and a detection unit that detects whether the rotating tub is in a normal temperature state or a high temperature state in which the temperature in the rotating tub is higher than the normal temperature state. The lighting control unit is configured to reduce the light emission amount or shorten the light emission time when the detection unit detects a high temperature state when the lighting device is turned on, compared to a case where a normal temperature state is detected.

本発明の一実施形態に係る洗濯機の斜視図である。It is a perspective view of a washing machine concerning one embodiment of the present invention. 図１の洗濯機の断面図である。It is sectional drawing of the washing machine of FIG. 図１の洗濯機の電気構成を示すブロック図である。It is a block diagram which shows the electric constitution of the washing machine of FIG. 図１の洗濯機の照明装置の制御を示すフロー図である。It is a flowchart which shows control of the illuminating device of the washing machine of FIG. 第２実施形態に係る洗濯機の照明装置の制御を示すフロー図である。It is a flowchart which shows control of the illuminating device of the washing machine which concerns on 2nd Embodiment. 第２実施形態に係る洗濯機の照明装置の制御を示すタイミングチャートである。It is a timing chart which shows control of the illuminating device of the washing machine which concerns on 2nd Embodiment.

（第１実施形態）
以下、本発明の第１実施形態について、図面を参照して説明する。 (First embodiment)
Hereinafter, a first embodiment of the present invention will be described with reference to the drawings.

本実施形態の洗濯機１は、図１及び図２に例示するような回転軸を傾斜させた回転槽（回転ドラム）１１を備えるドラム式洗濯機であり、ほぼ矩形箱状の筐体３と、その下部に設けられた台板２とから洗濯機１の外郭が形成されている。筐体３の前面部３ａには前上がりの傾斜状をなしており、そのほぼ中央部に円形の開口部からなる洗濯物出入口４が形成されている。筐体３の前面部３ａには、ヒンジを介して扉５が横方向に回動可能に設けられ、扉５により洗濯物出入口４が開閉される。本実施形態では、扉５の開放を検知する扉センサ１９（図３参照）が筐体３に設けられている。 The washing machine 1 of the present embodiment is a drum type washing machine including a rotating tub (rotating drum) 11 having a rotating shaft inclined as illustrated in FIGS. 1 and 2, and includes a substantially rectangular box-shaped housing 3 and The outer shell of the washing machine 1 is formed from the base plate 2 provided in the lower part thereof. The front surface portion 3a of the housing 3 has an upwardly inclined shape, and a laundry doorway 4 including a circular opening is formed at a substantially central portion thereof. A door 5 is provided on the front surface portion 3 a of the housing 3 so as to be able to turn in the horizontal direction via a hinge, and the laundry entrance 4 is opened and closed by the door 5. In the present embodiment, a door sensor 19 (see FIG. 3) that detects the opening of the door 5 is provided in the housing 3.

筐体３の内部には、図２に示すように、前面が開口し後面が閉塞されたほぼ円筒状の水槽８が配設されている。この水槽８は、前面の開口部が洗濯物出入口４に連通するように、水槽８の軸方向が前後方向の横軸状態であって後下がりにやや傾斜した状態で台板２上に弾性支持機構９を介して弾性的に支持されている。 As shown in FIG. 2, a substantially cylindrical water tank 8 having an open front surface and a closed rear surface is disposed inside the housing 3. This aquarium 8 is elastically supported on the base plate 2 with the axial direction of the aquarium 8 being a horizontal axis in the front-rear direction and being slightly inclined rearward so that the front opening communicates with the laundry entrance 4. It is elastically supported via the mechanism 9.

水槽８は、給水弁１６を介して水槽８の上部に設けられた給水口より水道水などの水が機外から供給され、水槽８の底部に設けられた排水口より排水弁１７を介して水槽８内の水を機外へ排水できるように構成されている。また、排水口の近傍に設けられたエアトラップには、水槽８内の水位を検知する水位センサ１８（図３参照）がエアチューブを介して接続されている。 The water tank 8 is supplied with water such as tap water from the outside of the apparatus through a water supply valve 16 through a water supply port provided at the upper part of the water tank 8, and from a water discharge port provided at the bottom of the water tank 8 through a drain valve 17. It is comprised so that the water in the water tank 8 can be drained outside the apparatus. Further, a water level sensor 18 (see FIG. 3) for detecting the water level in the water tank 8 is connected to an air trap provided in the vicinity of the drain outlet via an air tube.

水槽８は、前面の開口部や給水口や排水口以外に不図示の循環ダクトを接続する排気口と給気口が設けられている。循環ダクトの内部には、内部を流通する空気を除湿及び加熱を行う除湿機構２２（図３参照）が収納されており、回転ドラム１１と循環ダクトとの間で空気を循環させることで回転ドラム１１内の衣類を乾燥させる。 The water tank 8 is provided with an exhaust port and an air supply port for connecting a circulation duct (not shown) in addition to the front opening, the water supply port, and the drain port. A dehumidifying mechanism 22 (see FIG. 3) that dehumidifies and heats the air flowing through the circulation duct is housed inside the circulation duct, and the rotation drum is configured by circulating air between the rotation drum 11 and the circulation duct. The clothes in 11 are dried.

また、水槽８内の底部には、温水用ヒータ２３（図３参照）が設けられている。この温水用ヒータ２３は、例えばシーズヒータから構成されていて、衣類を温水で洗う温水洗浄運転を行う際に通電されて水槽８内の洗濯液を加熱する。 A warm water heater 23 (see FIG. 3) is provided at the bottom of the water tank 8. This warm water heater 23 is composed of, for example, a sheathed heater, and is energized to heat the washing liquid in the water tank 8 when performing a warm water washing operation for washing clothes with warm water.

水槽８の前面開口部８ａは、その前方に対向する洗濯物出入口４と環状のベローズ１０によって水密状態で連結されている。また、水槽８は、前面の開口部や給水口や排水口以外に、前部の上面に吸気口（不図示）と、後部の背面の上部に排気口（不図示）が設けられている。 The front opening 8 a of the water tub 8 is connected in a watertight manner by a laundry entrance 4 facing the front and an annular bellows 10. The water tank 8 is provided with an intake port (not shown) on the upper surface of the front part and an exhaust port (not shown) on the upper part of the rear surface in addition to the front opening, water supply port and drainage port.

水槽８の内部には、前面が開口し後面が閉塞された円筒状の回転ドラム１１が回転可能に配設されている。回転ドラム１１は、その軸方向が前後方向の横軸状態であって後下がりにやや傾斜した状態で水槽８内に配設されている。回転ドラム１１の周壁には通水及び通風が可能な孔１２が多数形成され、この孔１２によって回転ドラム１１の内部が水槽８と連通している。回転ドラム１１の前面開口部も洗濯物出入口４に連通し、回転ドラム１１は洗濯物出入口４から投入される衣類を収容する。回転ドラム１１は、水槽８の背面に設けられたドラムモータ１３により回転駆動される。このような構成の回転ドラム１１は、洗い行程時には洗濯槽として、脱水行程時には脱水槽として、さらに乾燥運転時には乾燥槽として機能する。 Inside the water tank 8, a cylindrical rotary drum 11 having an open front surface and a closed rear surface is rotatably disposed. The rotating drum 11 is disposed in the water tank 8 in a state where the axial direction is a horizontal axis in the front-rear direction and is slightly inclined downward. A number of holes 12 through which water and air can be passed are formed in the peripheral wall of the rotating drum 11, and the inside of the rotating drum 11 communicates with the water tank 8 through the holes 12. The front opening of the rotary drum 11 is also communicated with the laundry entrance / exit 4, and the rotary drum 11 accommodates clothes put in from the laundry entrance / exit 4. The rotating drum 11 is rotationally driven by a drum motor 13 provided on the back surface of the water tank 8. The rotating drum 11 having such a configuration functions as a washing tub during a washing stroke, as a dehydrating tub during a dehydration stroke, and as a drying tub during a drying operation.

洗濯物出入口４を開閉する扉５は、例えば、プラスチック製のリング状の枠体５ａと、枠体５ａの内部に設けられたガラス製の透光部５ｂとを備え、透光部５ｂを介して洗濯機の内外を光が透過するように構成されている。 The door 5 that opens and closes the laundry doorway 4 includes, for example, a plastic ring-shaped frame 5a and a glass light-transmitting portion 5b provided inside the frame 5a, and the light-transmitting portion 5b is interposed therebetween. The light is transmitted through the inside and outside of the washing machine.

そして、図２に示すように、洗濯物出入口４と水槽８の前面開口部８ａを連結するベローズ１０には、回転ドラム１１の内部を照明する照明装置４０が設けられている。 As shown in FIG. 2, the bellows 10 that connects the laundry doorway 4 and the front opening 8 a of the water tub 8 is provided with an illumination device 40 that illuminates the inside of the rotating drum 11.

照明装置４０は、例えば、赤色の波長帯（６２０〜７５０ｎｍ）の光を発光する赤色用光源と、緑色の波長帯（４９５〜５７０ｎｍ）の光を発光する緑色用光源と、青色の波長帯（４５０〜４９５ｎｍ）の光を発光する青色用光源とを備え、これらの各光源をそれぞれ独立して発光させて各波長帯の光を照射したり、全ての光源を同時に発光させて白色光を照射したり、各光源の発光量を調整することで任意の色の光を照射することができる。照明装置４０に設けられた赤色用光源、緑色用光源、及び青色用光源は、例えば、発光ダイオードから構成されている。 The illumination device 40 includes, for example, a red light source that emits light in a red wavelength band (620 to 750 nm), a green light source that emits light in a green wavelength band (495 to 570 nm), and a blue wavelength band ( 450 to 495 nm), and each light source emits light independently and emits light of each wavelength band, or all light sources emit light simultaneously and emits white light. Or by adjusting the amount of light emitted from each light source. The red light source, the green light source, and the blue light source provided in the illuminating device 40 are composed of, for example, light emitting diodes.

照明装置４０は、ベローズ１０の上部部分に設けられた取付孔４１に水密状態で挿入され、照明装置４０の先端が環状のベローズ１０の上部内側から突出している。照明装置４０の先端には、赤色用光源、緑色用光源、及び青色用光源が斜め下方に指向して取り付けられており、これにより、洗濯物出入口４の内側上部から回転ドラム１１内を照明するように設けられている。 The lighting device 40 is inserted in a watertight state into a mounting hole 41 provided in the upper portion of the bellows 10, and the tip of the lighting device 40 protrudes from the upper inside of the annular bellows 10. A light source for red, a light source for green, and a light source for blue are attached obliquely downward at the front end of the illumination device 40, and thereby illuminate the inside of the rotary drum 11 from the upper part inside the laundry entrance 4. It is provided as follows.

また、ベローズ１０に設けられた照明装置４０の近傍には、回転ドラム１１内の温度を検出するドラム温度センサ４２が設けられている。 A drum temperature sensor 42 that detects the temperature in the rotating drum 11 is provided in the vicinity of the illumination device 40 provided in the bellows 10.

筐体３の前面部３ａの上方位置には、引き出し式の洗剤投入ケース７が設けられ、その洗剤投入ケース７の側方に操作表示パネル６が設けられている。この操作表示パネル６には、洗濯機の各種操作を設定する操作キー１４や、運転状況を表示する表示部１５が設けられている。 A drawer type detergent charging case 7 is provided above the front surface 3 a of the housing 3, and an operation display panel 6 is provided on the side of the detergent charging case 7. The operation display panel 6 is provided with operation keys 14 for setting various operations of the washing machine and a display unit 15 for displaying a driving situation.

操作表示パネル６の裏面には、マイクロコンピュータとメモリを含んで構成され、洗濯機１の作動全般を制御する制御手段として機能する制御装置２０が設けられている。この制御装置２０は、図３に示すように、操作キー１４からの操作信号や水位センサ１８や扉センサ１９やドラム温度センサ４２などの各種センサの検出信号が入力される。制御装置２０は、操作キー１４や各種センサから入力される信号とメモリに予め記憶された制御プログラムに基づき、駆動回路２１を介してドラムモータ１３、操作表示パネル６の表示部１５、給水弁１６、排水弁１７、除湿機構２２、温水ヒータ２３を制御する。また、制御装置２０は、照明装置４０に設けられた赤色用光源、緑色用光源、及び青色用光源を制御する照明制御部として機能する。 On the back surface of the operation display panel 6, a control device 20 that includes a microcomputer and a memory and functions as a control unit that controls the overall operation of the washing machine 1 is provided. As shown in FIG. 3, the control device 20 receives operation signals from the operation keys 14 and detection signals from various sensors such as the water level sensor 18, the door sensor 19, and the drum temperature sensor 42. The control device 20 includes a drum motor 13, a display unit 15 of the operation display panel 6, and a water supply valve 16 via a drive circuit 21 based on signals input from the operation keys 14 and various sensors and a control program stored in the memory in advance. The drain valve 17, the dehumidifying mechanism 22, and the hot water heater 23 are controlled. The control device 20 functions as an illumination control unit that controls the red light source, the green light source, and the blue light source provided in the illumination device 40.

次に、上記構成の洗濯機１の動作の一例を説明する。 Next, an example of operation | movement of the washing machine 1 of the said structure is demonstrated.

まず、洗濯機１の概略的な動作について説明する。使用者が操作表示パネル６の操作キー１４を操作して運転のコースを設定し、制御装置２０に運転開始が指示されると、洗濯機１は、設定された運転のコースに応じた洗濯運転、温水洗浄運転、乾燥運転、或いは洗濯運転又は温水洗浄運転と乾燥運転とを続けて行う洗濯乾燥運転を実行する。 First, a schematic operation of the washing machine 1 will be described. When the user operates the operation key 14 of the operation display panel 6 to set a course of driving and the control device 20 is instructed to start driving, the washing machine 1 performs the washing operation according to the set driving course. Then, the washing / drying operation is performed in which the warm water washing operation, the drying operation, or the washing operation or the warm water washing operation and the drying operation are continuously performed.

そして、本実施形態の洗濯機１では、扉センサ１９で扉５の開放を検知した時や、洗濯機１に所定の異常が発生した時（例えば、回転ドラム１１内の衣類のかたより異常や、水槽８内に洗濯液が残存している異常や、全ての運転が終了した後に回転ドラム１１内に衣類の取り残しがある異常など）や、全ての運転が終了した時などの予め定められた条件を満たした場合、あるいは使用者が操作キー１４を操作して照明装置４０により回転ドラム１１内の照明を指示した場合に、制御装置２０が、照明装置４０に設けられた赤色用光源、緑色用光源、及び青色用光源の点灯及び消灯を制御する照明制御部として機能する。 And in the washing machine 1 of this embodiment, when opening of the door 5 is detected by the door sensor 19 or when a predetermined abnormality occurs in the washing machine 1 (for example, abnormalities due to clothing in the rotating drum 11, Predetermined conditions such as abnormalities in which the washing liquid remains in the water tank 8, abnormalities in which the clothes are left in the rotating drum 11 after all the operations are completed, and when all the operations are completed Or when the user operates the operation key 14 and instructs the illumination device 40 to illuminate the rotary drum 11, the control device 20 uses the red light source provided in the illumination device 40 and the green light source. It functions as an illumination control unit that controls turning on and off of the light source and the blue light source.

ここでは、一例として、図４に例示するような全ての運転が終了した後に回転ドラム１１内に衣類の取り残しがある異常が発生した場合について説明する。 Here, as an example, a case will be described in which an abnormality in which clothing remains in the rotating drum 11 occurs after all operations illustrated in FIG. 4 have been completed.

まず、使用者に設定された運転が全て終了した後（ステップＳ１）、扉センサ１９が扉５の開放を検知し（ステップＳ２のＹｅｓ）、その後、扉センサ１９が扉５の閉扉を検知すると（ステップＳ３のＹｅｓ）、制御装置２０は、回転ドラム１１内に衣類が残存し衣類の取り残しが有るか否か判断する（ステップＳ４）。衣類の取り残しの有無は、例えば、回転ドラム１１内を撮像したり、あるいは、回転ドラム１１を回転して回転ドラム１１の収容物の重量を検出したりすることで判断する。 First, after all the operations set by the user are completed (step S1), the door sensor 19 detects the opening of the door 5 (Yes in step S2), and then the door sensor 19 detects the closing of the door 5. (Yes in step S3), the control device 20 determines whether clothing remains in the rotary drum 11 and there is no clothing left (step S4). The presence / absence of leftover clothing is determined, for example, by imaging the inside of the rotating drum 11 or by detecting the weight of the contents of the rotating drum 11 by rotating the rotating drum 11.

そして、衣類の取り残しがない場合は（ステップＳ４のＮＯ）、照明装置４０を点灯することなく制御を終了する。一方、回転ドラム１１に衣類の取り残しがあると（ステップＳ４のＹｅｓ）、制御装置２０は、ドラム温度センサ４２で検出される回転ドラム１１内の温度Ｔｄが所定温度Ｔｔｈ（例えば、Ｔｔｈ＝６０℃）以下であるか否か判断する（ステップＳ５）。 And when there is no leftover of clothes (NO of step S4), control is complete | finished without lighting the illuminating device 40. FIG. On the other hand, if there is any clothing left on the rotating drum 11 (Yes in step S4), the control device 20 determines that the temperature Td in the rotating drum 11 detected by the drum temperature sensor 42 is a predetermined temperature Tth (for example, Tth = 60 ° C.). It is determined whether or not the following is true (step S5).

制御装置２０は、ドラム温度センサ４２の検出温度Ｔｄが所定温度Ｔｔｈ以下であれば（ステップＳ５のＹｅｓ）、回転ドラム１１内の温度状態が常温状態と判断し、照明装置４０の赤色用光源、緑色用光源、及び青色用光源を連続発光させて時間ｔ１（例えば、ｔ１＝３０秒間）白色光を回転ドラム１１内に照射し（ステップＳ７）、その後、照明装置４０を消灯する（ステップＳ１０）。 If the detected temperature Td of the drum temperature sensor 42 is equal to or lower than the predetermined temperature Tth (Yes in Step S5), the control device 20 determines that the temperature state in the rotating drum 11 is a normal temperature state, and the red light source of the lighting device 40, The green light source and the blue light source are continuously emitted to irradiate the rotating drum 11 with white light for a time t1 (for example, t1 = 30 seconds) (step S7), and then the illumination device 40 is turned off (step S10). .

一方、ドラム温度センサ４２の検出温度Ｔｄが所定温度Ｔｔｈより大きければ（ステップＳ５のＮｏ）、回転ドラム１１内の温度状態が高温状態と判断し、照明装置４０の赤色用光源、緑色用光源、及び青色用光源を連続発光させて常温状態の場合より短い時間ｔ２（例えば、ｔ２＝１０秒間）白色光を回転ドラム１１内に照射し（ステップＳ９）、その後、照明装置４０を消灯する（ステップＳ１０）。 On the other hand, if the detected temperature Td of the drum temperature sensor 42 is higher than the predetermined temperature Tth (No in step S5), the temperature state in the rotating drum 11 is determined to be a high temperature state, and the red light source, the green light source of the lighting device 40, The blue light source is continuously emitted to emit white light into the rotating drum 11 for a shorter time t2 (for example, t2 = 10 seconds) than in the normal temperature state (step S9), and then the illumination device 40 is turned off (step S9). S10).

以上のような洗濯機１では、回転ドラム１１内の温度が常温状態より高い高温状態にあると、照明装置４０の発光時間を常温状態に比べて短縮し照明装置４０の発熱を抑えるため、照明装置４０の過剰な温度上昇を抑え、照明装置４０の寿命が短くなるのを抑えることができる。 In the washing machine 1 as described above, when the temperature in the rotating drum 11 is in a high temperature state higher than the normal temperature state, the lighting time of the lighting device 40 is shortened compared to the normal temperature state, and the heating of the lighting device 40 is suppressed. It is possible to suppress an excessive increase in temperature of the device 40 and to prevent the life of the lighting device 40 from being shortened.

（変更例１）
上記した本実施形態では、照明装置４０の点灯指示が制御装置２０に入力された時に回転ドラム１１内が高温状態にあると、常温状態に比べて照明装置４０を連続発光させる時間を短縮する場合について説明したが、例えば、常温状態より高温状態において照明装置４０の印加電圧を低下させたり、高温状態において照明装置４０を点滅させたり、常温状態より高温状態においてPWM（Pulse Width Modulation）のＯＮ／ＯＦＦデューティー比を低下させて照明装置４０をパルス発光させたり、あるいは、常温状態のみ照明装置４０を点灯させ高温状態では照明装置４０の点灯を禁止したりすることで、常温状態に比べて高温状態における発光量を低下させてもよい。このような場合でも上記した実施形態と同様の作用効果が奏される。なお、その他の構成は第１の実施形態と同様であり、詳細な説明は省略する。 (Modification 1)
In the above-described embodiment, when the rotating drum 11 is in a high temperature state when a lighting instruction for the lighting device 40 is input to the control device 20, the time for which the lighting device 40 continuously emits light is shorter than that in the normal temperature state. However, for example, the applied voltage of the lighting device 40 is lowered at a temperature higher than the normal temperature state, the lighting device 40 is blinked at a high temperature state, or PWM (Pulse Width Modulation) ON / Lowering the OFF duty ratio to cause the lighting device 40 to emit light pulses, or lighting the lighting device 40 only in the normal temperature state and prohibiting the lighting device 40 from turning on in the high temperature state, so that the temperature is higher than that in the normal temperature state. The amount of emitted light may be reduced. Even in such a case, the same effect as the above-described embodiment can be obtained. Other configurations are the same as those of the first embodiment, and detailed description thereof is omitted.

（変更例２）
上記した本実施形態では、照明装置４０の近傍に設けられたドラム温度センサ４２で検出された回転ドラム１１内の温度に基づいて回転ドラム１１内部の温度状態が常温状態と高温状態のいずれの状態にあるのかを判断したが、例えば、水槽８内の洗濯液を温水用ヒータ２３で加熱して衣類を温水で洗う温水洗浄運転の開始時点から温水洗浄運転の終了後所定時間経過するまでの間を高温状態と判断したり、回転ドラム１１と循環ダクトとの間で空気を循環させながら除湿機構２２で循環ダクト内部を流通する空気の除湿及び加熱を行い回転ドラム１１内の衣類を乾燥させる乾燥運転の開始時点から乾燥運転の終了後所定時間経過するまでの間を高温状態と判断し、その他の期間を常温状態と判断してもよい。このような場合では、温度センサが無くても洗濯機１の運転状況から回転ドラム１１内部の温度状態が常温状態と高温状態のいずれの状態にあるのかを判断することができ、部品点数の削減及び制御構成の簡略化を図ることができる。なお、その他の構成及び作用効果は第１の実施形態と同様であり、詳細な説明は省略する。 (Modification 2)
In the present embodiment described above, the temperature state inside the rotating drum 11 is either the normal temperature state or the high temperature state based on the temperature inside the rotating drum 11 detected by the drum temperature sensor 42 provided in the vicinity of the lighting device 40. For example, from the start of the hot water washing operation in which the washing liquid in the water tub 8 is heated by the hot water heater 23 and the clothes are washed with hot water until a predetermined time elapses after the end of the hot water washing operation. Drying to dry the clothes in the rotating drum 11 by dehumidifying and heating the air circulating in the circulating duct by the dehumidifying mechanism 22 while circulating air between the rotating drum 11 and the circulating duct. The period from the start of the operation until the elapse of a predetermined time after the end of the drying operation may be determined as the high temperature state, and the other period may be determined as the normal temperature state. In such a case, even if there is no temperature sensor, it is possible to determine whether the temperature state inside the rotary drum 11 is a normal temperature state or a high temperature state from the operating state of the washing machine 1, and the number of parts can be reduced. In addition, the control configuration can be simplified. Other configurations and operational effects are the same as those of the first embodiment, and detailed description thereof is omitted.

（変更例３）
上記した本実施形態では、照明装置４０の点灯指示が制御装置２０に入力された時に回転ドラム１１内が常温状態及び高温状態のいずれの状態であっても、制御装置２０が、照明装置４０の全ての光源を同時に発光させて白色光を回転ドラム１１内へ照射する場合について説明したが、例えば、常温状態では白色光を照射し、高温状態では照明装置４０の一部の光源（例えば、赤色用光源のみ）を発光させて常温状態と異なる色の光を照射してもよい。このような場合、回転ドラム１１内の温度状態が高温状態にあることを使用者に知らしめ注意を促すことができる。 (Modification 3)
In the above-described embodiment, when the lighting instruction of the lighting device 40 is input to the control device 20, the control device 20 controls the lighting device 40 regardless of whether the rotating drum 11 is in a normal temperature state or a high temperature state. The case where all the light sources emit light at the same time and irradiate white light into the rotating drum 11 has been described. For example, white light is emitted in a normal temperature state, and some light sources (for example, red light) (Only the light source) may be emitted to emit light of a color different from that at room temperature. In such a case, the user can be informed that the temperature in the rotary drum 11 is at a high temperature, and can be alerted.

また、このような変更例では、高温状態において常温状態と異なる色の光りで回転ドラム１１を照射することに加え、操作表示パネル６に設けられた表示部１５のバックライトの点灯色を照明装置４０の発光色にあわせて常温状態と高温状態とで変更したり、回転ドラム１１内の温度状態が高温状態の場合に音声などによってその旨を報知してもよい。 Further, in such a modified example, in addition to irradiating the rotating drum 11 with light having a color different from that in the normal temperature state in a high temperature state, the lighting color of the backlight of the display unit 15 provided in the operation display panel 6 is changed. It may be changed between a normal temperature state and a high temperature state according to the 40 emission colors, or when the temperature state in the rotating drum 11 is a high temperature state, that fact may be notified by voice or the like.

なお、その他の構成及び作用効果は第１の実施形態と同様であり、詳細な説明は省略する。 Other configurations and operational effects are the same as those of the first embodiment, and detailed description thereof is omitted.

（変更例４）
上記した本実施形態では、回転槽（回転ドラム）１１が筐体３内で傾斜するように配置されたドラム式洗濯機の場合について説明したが、例えば、回転槽の回転軸を上下に向けた縦軸型の洗濯機に設けた照明装置の制御に適用することもできる。 (Modification 4)
In the above-described embodiment, the case of the drum-type washing machine in which the rotating tub (rotating drum) 11 is disposed so as to be inclined in the housing 3 has been described. For example, the rotating shaft of the rotating tub is directed up and down. The present invention can also be applied to control of a lighting device provided in a vertical washing machine.

（第２実施形態）
次に、本発明の第２実施形態について図５及び図６を参照して説明する。 (Second Embodiment)
Next, a second embodiment of the present invention will be described with reference to FIGS.

上記した第１実施形態では、消灯している照明装置４０を点灯させるときに回転ドラム１１内が高温状態であるか否か判断したが、本実施形態は、既に照明装置４０が点灯しているときに回転ドラム１１内が高温状態であるか否か判断し、その結果に基づいて制御装置２０が照明装置４０を制御する点で上記した第１実施形態と相違する。この実施形態では、図５及び図６に例示するような衣類を温水で洗う温水洗浄運転を実行する場合について説明する。 In the first embodiment described above, it is determined whether or not the inside of the rotating drum 11 is in a high temperature state when the lighting device 40 that is turned off is turned on. In this embodiment, the lighting device 40 is already turned on. It is sometimes different from the first embodiment in that it is determined whether or not the inside of the rotary drum 11 is in a high temperature state, and the control device 20 controls the lighting device 40 based on the result. This embodiment demonstrates the case where the warm water washing | cleaning driving | operation which wash | cleans clothing which is illustrated to FIG.5 and FIG.6 with warm water is performed.

まず、使用者が、洗濯物出入口４から回転ドラム１１内に衣類を収容した状態で、操作表示パネル６の操作キー１４を操作して、温水を利用して洗濯を行うコースを設定し、制御装置２０に運転開始が指示されると、制御装置２０は、ドラムモータ１３により回転ドラム１１を回転して回転ドラム１１に収容された衣類の重量を検出する（ステップＳ２１）。 First, a user sets a course for washing using hot water by operating the operation keys 14 of the operation display panel 6 in a state where clothes are stored in the rotary drum 11 from the laundry entrance 4. When the apparatus 20 is instructed to start operation, the control apparatus 20 rotates the rotating drum 11 by the drum motor 13 and detects the weight of the clothing stored in the rotating drum 11 (step S21).

制御装置２０は、検出した衣類の重量に応じて洗剤量、洗い時の水位、温水洗浄運転の実行時間などを設定し、そのうちの洗剤量を表示部１５に表示する。使用者は、その表示部１５に表示された分量の洗剤を洗剤投入ケース７に投入する。この後、制御装置２０は、給水弁１６を開放することで、給水弁１６に接続された水道の水を、洗剤投入ケース７を通して水槽８内に供給する。これに伴い、洗剤投入ケース７に投入された洗剤も、水とともに水槽８内に供給される（ステップＳ２２）。水槽８内の水位は、水位センサ１８により検出され、その検出信号も制御装置２０に出力される。 The control device 20 sets the amount of detergent, the water level at the time of washing, the execution time of the hot water washing operation, etc. according to the detected weight of clothing, and displays the amount of detergent on the display unit 15. The user inputs the amount of detergent displayed on the display unit 15 into the detergent charging case 7. Thereafter, the control device 20 opens the water supply valve 16 to supply tap water connected to the water supply valve 16 into the water tank 8 through the detergent charging case 7. Along with this, the detergent introduced into the detergent introduction case 7 is also supplied into the water tank 8 together with water (step S22). The water level in the water tank 8 is detected by the water level sensor 18, and the detection signal is also output to the control device 20.

制御装置２０は、水槽８内の水位が設定水位に達したと判断すると、給水弁１６を閉止して給水を停止する。その後、制御装置２０は、ドラムモータ１３により回転ドラム１１を低速度ＲＬ（例えば４０〜６０ｒｐｍ）で正逆回転させることで衣類を撹拌するとともに、温水用ヒータ２３を通電して発熱させて、温水洗浄運転を開始する（ステップＳ２３）。これにより、水槽８内の洗濯液が加熱され温水となり、衣類が温水を利用して洗浄される。なお、この例では、温水洗浄運転の実行している間、水槽８内の洗濯液が所定温度（例えば、６０℃）になるように制御装置２０が温水用ヒータ２３の出力を制御する。 When the control device 20 determines that the water level in the water tank 8 has reached the set water level, the control device 20 closes the water supply valve 16 to stop water supply. Thereafter, the control device 20 agitates the clothes by rotating the rotating drum 11 forward and backward at a low speed RL (for example, 40 to 60 rpm) by the drum motor 13 and energizes the warm water heater 23 to generate heat. The cleaning operation is started (step S23). Thereby, the washing liquid in the water tank 8 is heated to become warm water, and the clothes are washed using the warm water. In this example, the control device 20 controls the output of the warm water heater 23 so that the washing liquid in the water tub 8 reaches a predetermined temperature (for example, 60 ° C.) while the warm water washing operation is being executed.

また、温水洗浄運転は給水直後に実行されるため、温水洗浄運転の開始時の回転ドラム１１は常温状態にある。そこで、本実施形態では、上記した温水洗浄運転を開始すると、照明装置４０の赤色用光源、緑色用光源、及び青色用光源を発光させて照明装置４０を点灯し、回転ドラム１１内を白色光で照明する（ステップＳ２４）。 Further, since the warm water cleaning operation is performed immediately after the water supply, the rotating drum 11 at the start of the warm water cleaning operation is in a normal temperature state. Therefore, in the present embodiment, when the above-described hot water cleaning operation is started, the lighting device 40 is turned on by emitting the red light source, the green light source, and the blue light source of the lighting device 40, and the inside of the rotating drum 11 is white light. Illuminate with (step S24).

なお、本実施形態では、温水洗浄運転の開始時に制御装置２０が照明装置４０を点灯する場合について説明するが、例えば、温水洗浄運転の開始以前から照明装置４０が点灯していれば、制御装置２０は温水洗浄運転の開始後も照明装置４０の点灯状態を維持する。 In the present embodiment, the case where the control device 20 turns on the lighting device 40 at the start of the hot water cleaning operation will be described. For example, if the lighting device 40 is turned on before the start of the hot water cleaning operation, the control device 20 20 maintains the lighting state of the lighting device 40 even after the start of the hot water washing operation.

制御装置２０は、温水洗浄運転の開始とともに照明装置４０を点灯すると、ドラム温度センサ４２で検出される回転ドラム１１内の温度Ｔｄが所定温度Ｔｔｈ（例えば、Ｔｔｈ＝６０℃）以下であるか否か判断する（ステップＳ２５）。検出温度Ｔｄが所定温度Ｔｔｈ以下であれば（ステップＳ２５のＹｅｓ）、回転ドラム１１内の温度状態が常温状態にあるとしてこのステップを繰り返して照明装置４０の点灯を継続し、検出温度Ｔｄが所定温度Ｔｔｈより大きければ（ステップＳ２５のＮｏ）、回転ドラム１１内の温度状態が高温状態にあるとして照明装置４０を消灯する（ステップＳ２６）。 When the control device 20 turns on the illumination device 40 at the start of the hot water cleaning operation, whether or not the temperature Td in the rotating drum 11 detected by the drum temperature sensor 42 is equal to or lower than a predetermined temperature Tth (for example, Tth = 60 ° C.). (Step S25). If the detected temperature Td is equal to or lower than the predetermined temperature Tth (Yes in Step S25), it is determined that the temperature state in the rotary drum 11 is in the normal temperature state, and this step is repeated to continue lighting the lighting device 40, and the detected temperature Td is predetermined. If the temperature is higher than the temperature Tth (No in step S25), the lighting device 40 is turned off because the temperature in the rotary drum 11 is in a high temperature state (step S26).

そして、制御装置２０は、照明装置４０を消灯した後も温水による撹拌動作を継続し、衣類の重量検知時に設定した温水洗浄運転の実行時間が経過すると、回転ドラム１１の回転を停止させて撹拌動作を終了するとともに、温水用ヒータ２３の通電を停止することで、温水洗浄運転が終了する（ステップＳ２７）。 Then, the control device 20 continues the stirring operation with warm water even after the lighting device 40 is turned off, and when the execution time of the warm water washing operation set at the time of detecting the weight of the clothing has elapsed, the rotation of the rotary drum 11 is stopped and stirring is performed. While the operation is finished, the energization of the warm water heater 23 is stopped, whereby the warm water washing operation is finished (step S27).

その後、制御装置２０は、温水洗浄運転が終了したら排水弁１７を開放して、水槽８内の洗濯液（温水）を機外へ排出させる排水と（ステップＳ２８）、回転ドラム１１を一方向に高速度ＲＨ（例えば１３００ｒｐｍ）で回転させ衣類を遠心脱水する中間脱水と（ステップＳ２９）、水槽８内に水道水を供給するとともに回転ドラム１４を低速度ＲＬで正逆回転させるすすぎ行程と（ステップＳ３０）、回転ドラム１１を一方向に高速度ＲＨ（例えば１３００ｒｐｍ）で回転させ衣類を遠心脱水する最終脱水と（ステップＳ３１）を順次行い、全ての運転を終了する。 Thereafter, the control device 20 opens the drain valve 17 when the hot water washing operation is finished, and drains the washing liquid (warm water) in the water tub 8 to the outside of the machine (step S28), and the rotating drum 11 in one direction. Intermediate dehydration in which clothes are spun at a high speed RH (for example, 1300 rpm) (step S29), and tap water is supplied into the water tank 8 and the rinsing process is performed to rotate the rotating drum 14 forward and backward at a low speed RL (step S29). S30), the final dehydration of rotating the rotating drum 11 in one direction at a high speed RH (for example, 1300 rpm) and centrifugally dehydrating the clothes (step S31) are sequentially performed, and all the operations are completed.

洗濯機１の運転開始直後に使用者が洗濯機１近傍で動作を確認することがあるが、温水洗浄運転の場合、洗濯液の加熱によって扉５の透光部５ｂが曇り外部から回転ドラム１１内の状況が確認しにくくなることがある。本実施形態の洗濯機１では、運転開始直後に照明装置４０によって扉５の内側から回転ドラム１１の内部を照明するため、扉５の透光部５ｂが曇っていても回転ドラム１１内の状況を確認しやすくなるとともに、温水洗浄運転が進み回転ドラム１１内が高温状態に達すると照明装置４０を消灯し、照明装置４０が過熱状態になるのを抑え照明装置４０の短寿命化を抑えることができる。 The user may check the operation near the washing machine 1 immediately after the operation of the washing machine 1, but in the case of the warm water washing operation, the translucent part 5b of the door 5 becomes cloudy due to the heating of the washing liquid, and the rotating drum 11 from the outside. The situation inside can be difficult to check. In the washing machine 1 of this embodiment, since the inside of the rotary drum 11 is illuminated from the inside of the door 5 by the lighting device 40 immediately after the start of operation, the situation inside the rotary drum 11 even if the translucent part 5b of the door 5 is cloudy. In addition, when the hot water washing operation proceeds and the inside of the rotary drum 11 reaches a high temperature state, the lighting device 40 is turned off, and the lighting device 40 is prevented from being overheated and the life of the lighting device 40 is shortened. Can do.

なお、上記した本実施形態において、温水洗浄運転の開始時に照明装置４０を点灯させる場合に、制御装置２０は、照明装置４０を点灯する前にドラム温度センサ４２の検出温度Ｔｄが所定温度Ｔｔｈ以下であるか否か判断し、所定温度Ｔｔｈ以下であれば（常温状態であれば）照明装置４０を点灯し、所定温度Ｔｔｈより大きければ（高温状態であれば）照明装置４０を点灯させなかったり、あるいは、常温状態に比べて照明装置４０の発光量を低下させて点灯させてもよい。 In the above-described embodiment, when the lighting device 40 is turned on at the start of the hot water cleaning operation, the control device 20 causes the detected temperature Td of the drum temperature sensor 42 to be equal to or lower than the predetermined temperature Tth before the lighting device 40 is turned on. If the temperature is equal to or lower than the predetermined temperature Tth (if it is at room temperature), the lighting device 40 is turned on. If the temperature is higher than the predetermined temperature Tth (if it is high temperature), the lighting device 40 is not turned on. Alternatively, the lighting device 40 may be turned on by reducing the light emission amount as compared with the normal temperature state.

その他の構成及び作用効果は第１実施形態と同様であり、詳細な説明は省略する。 Other configurations and operational effects are the same as those of the first embodiment, and detailed description thereof is omitted.

（他の実施形態）
以上、本発明の実施形態を説明したが、これらの実施形態は例として提示したものであり、発明の範囲を限定することを意図していない。これらの実施形態は、その他の様々な形態で実施されることが可能であり、発明の趣旨を逸脱しない範囲で、種々の省略、置き換え、変更を行うことができる。これらの実施形態やその変形は、発明の範囲や要旨に含まれると同様に、特許請求の範囲に記載された発明とその均等の範囲に含まれるものである。 (Other embodiments)
As mentioned above, although embodiment of this invention was described, these embodiment was shown as an example and is not intending limiting the range of invention. These embodiments can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the spirit of the invention. These embodiments and modifications thereof are included in the invention described in the claims and equivalents thereof as well as included in the scope and gist of the invention.

１…洗濯機、２…台板、３…筐体、３ａ…前面部、４…洗濯物出入口、５…扉、５ａ…枠体、５ｂ…透光部、６…操作表示パネル、７…洗剤投入ケース、８…水槽、８ａ…前面開口部、９…弾性支持機構、１０…ベローズ、１１…回転ドラム、１８…水位センサ、１９…扉センサ、２０…制御装置（照明制御部）、２３…温水用ヒータ、２８…回転ドラム、４０…照明装置、４１…取付孔、４２…ドラム温度センサ DESCRIPTION OF SYMBOLS 1 ... Washing machine, 2 ... Base plate, 3 ... Case, 3a ... Front part, 4 ... Laundry entrance / exit, 5 ... Door, 5a ... Frame, 5b ... Translucent part, 6 ... Operation display panel, 7 ... Detergent Input case, 8 ... water tank, 8a ... front opening, 9 ... elastic support mechanism, 10 ... bellows, 11 ... rotating drum, 18 ... water level sensor, 19 ... door sensor, 20 ... control device (lighting control unit), 23 ... Heater for hot water, 28 ... rotating drum, 40 ... lighting device, 41 ... mounting hole, 42 ... drum temperature sensor

Claims

筐体の内部に設けられた水槽と、前記水槽の内部に回転可能に設けられた回転槽と、前記回転槽の内部を照明する照明装置と、前記照明装置の点灯を制御する照明制御部と、前記回転槽が常温状態と常温状態より前記回転槽内の温度が高い高温状態のいずれの温度状態にあるのかを検出する検出手段とを備えた洗濯機において、
前記照明制御部は、前記照明装置を点灯させるときあるいは前記照明装置が点灯しているときに、前記検出手段が高温状態を検出すると前記照明装置の点灯を禁止する、又は常温状態を検出した場合に比べて前記照明装置の発光量を低下する又は発光時間を短縮する洗濯機。 A water tank provided inside the housing; a rotary tank rotatably provided inside the water tank; an illumination device that illuminates the interior of the rotary tank; and an illumination control unit that controls lighting of the illumination device; In the washing machine provided with a detecting means for detecting whether the rotating tub is in a normal temperature state or a high temperature state in which the temperature in the rotating tub is higher than the normal temperature state,
When the lighting control unit turns on the lighting device or when the lighting device is turned on, when the detection means detects a high temperature state, the lighting control unit prohibits lighting of the lighting device or detects a normal temperature state Compared with the washing machine which reduces the light emission amount of the said illuminating device, or shortens light emission time.

前記検出手段は、前記回転槽内の温度を検出する温度センサを備え、前記温度センサの検出温度が、所定温度以下であると常温状態を検出し、所定温度より高いと高温状態を検出する請求項１に記載の洗濯機。 The said detection means is equipped with the temperature sensor which detects the temperature in the said rotary tank, The normal temperature state is detected when the detected temperature of the said temperature sensor is below predetermined temperature, and a high temperature state is detected when it is higher than predetermined temperature. Item 2. A washing machine according to Item 1.

前記検出手段は、加熱した洗濯液を前記水槽に供給して前記回転槽内の衣類を洗う温水洗浄運転又は前記回転槽内の衣類を乾燥させる乾燥運転の開始から終了後所定時間経過するまでの場合に高温状態を検出する請求項１に記載の洗濯機。 The detection means supplies a heated washing liquid to the water tub to wash clothes in the rotating tub or from a start of a drying operation to dry clothes in the rotating tub until a predetermined time elapses from the start. The washing machine according to claim 1, wherein a high temperature state is detected in the case.

前記照明制御部は、前記照明装置を点灯させるときに、前記検出手段が高温状態を検出すると常温状態を検出した場合と異なる色で前記回転槽を照明する請求項１〜３のいずれか１項に記載の洗濯機。 The said illumination control part illuminates the said rotation tank with the color different from the case where the normal temperature state is detected, when the said detection means detects a high temperature state, when lighting the said illuminating device. The washing machine as described in.

前記照明制御部は、加熱した洗濯液を前記水槽に供給して前記回転槽内の衣類を洗う温水洗浄運転の開始時に前記照明装置を点灯させるあるいは点灯状態を維持し、
温水洗浄運転の開始から所定時間経過する、又は前記回転槽内の温度を検出する温度センサの検出温度が所定温度より高いと、前記検出手段が高温状態を検出し、前記照明制御部は、前記照明装置を消灯する、又は常温状態を検出した場合に比べて発光量を低下するもしくは発光時間を短縮する請求項１に記載の洗濯機。 The lighting control unit turns on the lighting device at the start of a hot water washing operation for supplying heated washing liquid to the water tub and washing clothes in the rotating tub, or maintains a lighting state,
When a predetermined time elapses from the start of the hot water washing operation, or when the detection temperature of the temperature sensor that detects the temperature in the rotating tank is higher than a predetermined temperature, the detection means detects a high temperature state, and the illumination control unit The washing machine according to claim 1, wherein the amount of light emission is reduced or the light emission time is shortened as compared with a case where the lighting device is turned off or a normal temperature state is detected.