JP2007117141A - Drum type washing machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a drum type washing machine of which the usability is good in the heating setting of the washing water. <P>SOLUTION: This drum type washing machine is equipped with a controlling means 44 which controls the operation of the drum type washing machine, a heating means 41 for the water in a water tub; an input setting means 45, a displaying means 46, a power source turning-on switch 45f, and a storage means 48. The heating setting for the washing water is stored in the storage means 48 when the heating operation is started, or right after the completion of the operation by the input setting means 45. Then, when the power source turning-in switch 45f is turned on, the controlling means 44 displays the heating setting for the washing water being stored in the storage means 48 on the displaying means 46 as an initial setting. Thus, the resetting of the heating setting in each use becomes unnecessary. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a drum type washing machine that performs washing, rinsing, and dewatering in a rotating drum having a rotation center axis in a horizontal direction or a substantially inclined direction.

  FIG. 5 is a cross-sectional view of a conventional drum-type washing machine, and the configuration will be described with reference to the drawings.

  The rotating drum 1 is provided with a large number of water passage holes 2 on the entire outer periphery, and is rotatably disposed in the outer tub 3. One end of the rotary shaft 4 is fixed in a substantially horizontal direction at the rotation center of the rotary drum 1, and a driven pulley 5 is fixed on the other end of the rotary shaft 4. The first motor 6 rotates the rotating drum 1 at a first rotation speed N1 (for example, 53 r / min) to perform washing or rinsing, and the second motor 7 moves the rotating drum 1 to the first rotation. The centrifugal force dehydration is performed by rotating at a rotation speed N2 of 2 (for example, 1000 r / min).

  The first motor 6 and the second motor 7 are connected to the driven pulley 5 via belts 8 and 9, respectively. The driven pulley 5 has two kinds of reduction ratios. The first motor 6 is connected to a driven pulley 5a having a large reduction ratio via a belt 8 to rotate the rotary drum at a low speed, and the second motor 7 is connected to the driven pulley 5a. The rotary drum is connected to a driven pulley 5b having a small reduction ratio via a belt 9 and rotates at high speed.

  The outer tub 3 includes a substantially circular outer tub main body 3a whose section is centered on the rotation shaft 4 and a substantially circular outer tub front plate 3b covering the opening of the outer tub main body 3a. The rotating drum 1 and the outer tub 3 are configured so that the shape in a direction perpendicular to the rotating shaft 4 is substantially concentric with the rotating shaft 4 as the center, and a substantially concave heating housing the heater 14 on the bottom side. A body accommodating chamber 15 is provided.

  The outer tub 3 is suspended from the outer box 10 so as to be swingable by the spring body 11, and the vibration at the time of dehydration is reduced by the anti-vibration damper 12, and the vibration at the time of steady dehydration is not transmitted to the outer box 10. A weight 13 is provided for vibration-proofing and reducing vibration during dehydration. Further, one end of a drainage hose 16 is connected to the bottom of the outer tub 3, and the other end of the hose 16 is connected to a drainage pump 17 to drain the washing water in the outer tub 3. Near the lower portion of the heater 14, a temperature detection device 18 and an overtemperature prevention device 19 are fixed to the bottom of the outer tub body 3a.

  The substantially cylindrical packing member 20 is made of a flexible material such as rubber and connects the outer tank 3 opening corresponding to the front opening of the rotary drum 1 and the body front opening. The side end is fixed to the outer tank front plate 3b. A lid 21 is provided at the opening on the front of the body so as to be freely opened and closed. The water supply valve 22 supplies water into the outer tub 3.

  The control device 23 controls the operation of the first motor 6, the second motor 7, the heater 14, the drain pump 17, the water supply valve 22, and the like, and sequentially controls a series of processes such as washing, rinsing, and dehydration. And input means, display means, storage means and the like.

  To explain the operation in the above configuration, the lid 21 is opened, the laundry is put into the rotary drum 1 and the power switch (not shown) is turned on, and then the start switch (not shown) provided in the control device 23 is operated. When the operation is started, the water supply valve 22 operates to supply water, and when a predetermined water level is detected by a water level detection means (not shown), the water supply is stopped and the first motor 6 is driven. In the washing process, since water is absorbed into the laundry, the rotating drum 1 is rotated at a low speed by the first motor 6 at the first rotation speed N1 while supplying the deficiency, and the laundry in the rotating drum 1 is recovered. Do soups that are lifted and dropped onto the water surface. However, the washing method of dropping the laundry by its own weight does not provide sufficient cleaning power, and this type is used to increase the temperature of the washing water to kill bacteria attached to clothing. In general, a drum-type washing machine is provided with a function of high-temperature washing for heating washing water (see, for example, Patent Document 1).

  When the high-temperature washing is set, the heater 14 is energized, the temperature is detected by the temperature detector 18, and the temperature of the washing water in the outer tub 3 is controlled while the washing water in the outer tub is heated. Do warm water washing.

  When the washing process ends, the drain pump 17 operates to drain the washing water in the outer tub 3. In the rinsing process, rinsing is performed while performing the same washing operation as in the washing process.

In the dewatering process, the rotary drum 1 is driven to rotate at a high speed by the second motor 7 at the second rotation speed N2, and the laundry is centrifugally dehydrated.
Japanese Patent Laid-Open No. 10-263285

  However, in the conventional configuration, when setting the washing water to a high temperature, the user of the drum-type washing machine usually has to perform the setting every time. For example, when the water temperature is low in winter, the washing water is set to a high temperature. Even when the frequency of washing is high, there is a problem that the washing water must be set to a high temperature every time the user uses it.

  The present invention solves the above-described conventional problems, and aims to improve usability in setting the heating of water in a water receiving tank by a heating means.

  In order to solve the above-mentioned conventional problems, the drum type washing machine of the present invention stores the heating setting by the heating means in the storage means after starting the operation by the input setting means or immediately after the end of the operation. is there.

  By this, when the power is turned on, the heating setting by the heating means performed before can be set as the initial setting, so each time the user uses, the heating setting of the water in the water receiving tank by the heating means is selected. The conventional problem of having to do is solved.

  In the drum type washing machine of the present invention, the control device stores the heating setting of the water in the water receiving tub by the heating means, and the operation when the drum type washing machine is used next can be easily performed.

  According to a first aspect of the present invention, there is provided a rotating drum having a rotation center axis in a substantially horizontal direction or a direction inclined from the horizontal direction, a water receiving tank elastically supported in a housing and containing the rotating drum, Heating means for heating water, a motor for rotating the rotating drum, load driving means for controlling the rotation of the motor, setting of operation course, etc., and setting of contents of washing, rinsing, dehydration and drying Input setting means, a power-on switch for supplying power to each load, display means for displaying the setting state of the operation course, storage means for storing data necessary for operation setting and control, and the load driving And control means for sequentially controlling the input setting means and the like, the control means heating the water in the water receiving tank by the heating means immediately after the operation is started or immediately after the operation by the input setting means. It is a constant that is configured to store in the memory means.

  As a result, when the power is turned on, the heating setting of the water in the water receiving tank by the heating means performed previously can be set as the initial setting. Therefore, it is possible to save the trouble of selecting the water heating setting and improve the usability.

  In a second aspect based on the first aspect, the control means is operated by the input setting means when the course for heating the water in the water receiving tank by the heating means is selected by the input means. The storage means stores the fact that the course for heating the water in the water receiving tank by the heating means has been selected immediately after starting or immediately after the end of operation.

  This makes it possible to set the course previously performed when the power is turned on as an initial setting, so every time the user uses it, it is time-consuming to select the course for heating the water in the water receiving tank by the heating means. Can be omitted, and it improves usability.

  According to a third aspect of the present invention, in the first or second aspect of the invention, the control means gives priority to a course having a high frequency of use for storing the heating setting of water in the water tank by the heating means in the storage means. is there.

  By selecting a less frequently used course, the control means can prevent data stored in the storage means from being rewritten, and a course that is frequently used can always be initialized. This saves the user input and improves the usability.

  According to a fourth aspect of the present invention, in the first to third aspects of the present invention, after the power-on switch is input, the control unit sets the heating setting of the water in the water receiving tank by the heating unit stored in the storage unit. The information is displayed on the display means.

  Thereby, since the user can recognize reliably the heating setting of the water in the water receiving tank by a heating means, usability is improved.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. Note that the present invention is not limited to the embodiments.

(Embodiment)
1 is a longitudinal sectional view of a drum type washing machine according to an embodiment of the present invention, FIG. 2 is a control circuit diagram in which the drum type washing machine is partially blocked, and FIG. 3 is an input of the drum type washing machine. FIG. 4 is an enlarged front view of the setting means and the display means, and FIG. 4 is a heat washing process diagram of the drum type washing machine.

  As shown in FIG. 1, the rotating drum 24 is formed in a bottomed cylindrical shape, and a large number of water passage holes 25 are provided on the entire outer periphery thereof, and are rotatably disposed in the water receiving tank 26. A rotation axis (rotation center axis) 27 is provided at the rotation center of the rotary drum 24 in a substantially inclined direction, and the axial center direction of the rotation drum 24 is inclined downward from the front side toward the back side. The rotation of the motor 28 attached to the outer bottom surface of the water receiving tank 26 is caused by a V stretched between a driving pulley 50 fixed to the rotating shaft of the motor 28 and a driven pulley 51 fixed to the end of the rotating shaft 27. The rotation is transmitted to the rotary shaft 27 by the belt 52, and the rotary drum 24 is rotated in the forward and reverse directions. Several protruding plates 29 are provided on the inner wall surface of the rotating drum 24 to perform a stirring operation of lifting and dropping clothes in the rotating direction, so-called tapping.

  The opening 30b provided in the upward inclined surface 30a on the front side of the washing machine body 30 is covered with a lid 31 so that it can be opened and closed. The laundry can be taken in and out of the rotary drum 24 through the rotary drum clothing entrance 24a of the drum 24. Note that the lid 31 has a configuration capable of operating the lid lock 40 so as not to open in order to maintain the safety of the user during the driving operation.

  The water receiving tank 26 is swingably supported by the washing machine main body 30 by a spring 33 and a damper 34, and is supported in an anti-vibration manner. One end of a drainage path 32 is connected to the lower part of the water receiving tank 26, and the drainage path 32 is connected. The other end is connected to a drain valve 36 to drain the washing water in the water receiving tank 26.

  A water supply valve (water supply means) 37 supplies water into the water receiving tank 26 through the detergent charging case 35 and the water supply path 38. The water level detection means 39 detects the water level in the water receiving tank 26. In addition, a heater 41 for heating the washing water and a temperature detection means 42 for detecting the temperature of the washing water are provided at the inner bottom of the water receiving tub 26 and have a function of washing the laundry in the rotating drum 24 with warm water.

  A control device 43 is arranged below the washing machine main body 30, and an input setting means 45, a display means 46, a power-on switch 45f (described in FIG. 2) and the like electrically connected to the control device 43 are the washing machine. The main body 30 is disposed on the upward inclined surface 30a.

  In the present embodiment, the rotation shaft 27 is provided in a substantially inclined direction at the rotation center of the rotary drum 24, and the axial center direction of the rotary drum 24 is inclined downward from the front side toward the back side. However, the rotary shaft 27 may be provided in the substantially horizontal direction at the rotation center of the rotary drum 24, and the axial center direction of the rotary drum 24 may be provided in the substantially horizontal direction.

  The control device 43 is configured as shown in the control circuit diagram of FIG. 2. Input and disconnection of power to the circuit is performed by a power-on switch 45f and a power-off switch 45g, and the motor 28, drain valve 36, water supply It has a control means 44 comprising a microcomputer for controlling the operation of the valve 37, the heater (heating means) 41, etc., and sequentially controlling a series of steps of washing, rinsing and dehydration. The control unit 44 inputs information from the input setting unit 45 for setting the driving course and the like, displays the information on the display unit 46 based on the information, notifies the user, and starts the operation by the input setting unit 45. Is set, the data from the water level detecting means 39 for detecting the water level in the water receiving tank 26 is input, and the motor 28, the drain valve 36, the water supply valve 37, the heater (heating) are input via the load driving means 47. Means) The operation of 41 etc. is controlled and the washing operation is performed.

  The storage means 48 is composed of a non-writable nonvolatile memory that stores data necessary for control by the control means 44.

  As shown in FIG. 3, the input setting means 45 includes a washing time setting switch 45a for setting the washing time, a rinsing frequency setting switch 45b for setting the rinsing frequency, a dehydration time setting switch 45c for setting the dehydration time, and start / pause. A switch 45e, a power-on switch 45f, a power-off switch 45g, a water level change input setting switch 45h, a course setting switch 45d capable of selecting various washing courses, a hot water course operation setting switch 45j, and the like.

  Similarly, as shown in FIG. 3, the display means 46 is a washing time display section 46a, a rinse count display section 46b, a dehydration time display section 46c, and the warm water course setting switch 45j, for example, washing with hot water. A course setting display section 46d for displaying "bacteria course", a water level display section (water level display means) 46e, a remaining time display section 46g, a temperature display section (heating display means) 46j for displaying the temperature of hot water, etc. ing.

  In order to set the washing water temperature higher by determining that the washing water temperature is low due to the low temperature of the washing water due to, for example, the winter season, the user selects the warm water course operation setting switch 45j shown in FIG. Five courses can be selected: a course, a sterilization course, an odor refreshing course, a house cleaning course, and a blanket course. That is, when the hot water course setting switch 45j is pressed, the display lamp for the hot water automatic course is turned on. Next, press again to turn on the sterilization course indicator lamp. Press again to turn on the odor refreshing course indicator lamp. Next, the house cleaning course indicator lamp and the blanket course indicator lamp will be displayed. The lamps are switched sequentially and light up.

  If the start / pause switch 45e is operated after selecting the course, the operation of the set course is started, and the water temperature of the washing water is controlled to a temperature preset by each course, and predetermined washing and rinsing are performed. Do course driving such as dehydration.

  When the user selects, for example, a sterilization course, the water temperature is controlled so that the water temperature becomes about 60 ° C. as shown in the heating and washing process diagram of FIG.

  When the odor refreshing course is selected, the water temperature is controlled to about 40 ° C., and the odor of food and ammonia adhering to clothing is removed.

  The house cleaning course is for washing delicate clothes that are easily damaged when mechanical force is applied. The water temperature is controlled to about 30 ° C. (not shown in FIG. 4).

  When the blanket course is selected, the water temperature is controlled to about 40 ° C., which is equivalent to the odor refreshing course, so that the sweat contained in the blanket can be removed smoothly (not shown in FIG. 4).

  The hot water entrusted course increases the washing effect by raising the washing water to a water temperature at which the detergent is activated when the water temperature is low in winter, and the set temperature in this case is about 30 ° C.

  Further, the temperature display unit 46j is a temperature display unit (heating display means) composed of a lamp composed of three light emitting diodes (LEDs) so that the water temperature can be displayed in three stages of 60 ° C., 40 ° C., and 30 ° C., for example. ).

  When each course is selected by the hot water course operation changeover switch 45j, the temperature display unit 46j sets the control means to display the water temperature. For example, when the sterilization course is selected, the 60 ° C. lamp lights up in the temperature display unit 46j. In addition, a 40 ° C. lamp is turned on in the odor refreshing course, a 30 ° C. lamp in the house cleaning course, a 40 ° C. lamp in the blanket course, and a 30 ° C. lamp in the hot water entrusted course.

  The operation and action of the drum type washing machine configured as described above will be described with reference to the enlarged front view of the input setting and display means of FIG.

  When the user selects, for example, the hot water entrusted course by the hot water course operation setting switch 45j and operates the start / pause switch 45e, the predetermined course operation is started. Then, simultaneously with the start of operation or immediately after the completion of the course operation, the storage means 48 inputs to the storage means that the hot water automatic course has been operated by the control means 44.

  Next, when the drum type washing machine is used, if the power-on switch 45f is operated, the automatic course lamp 46d and the temperature display 46j are set as initial settings based on the setting of the hot water automatic course stored in the storage means 44. If the 30 ° C lamp lights up and the start / pause switch 45e is operated, the operation of the hot water Omakase course is started without operating the hot water course operation setting switch 45j, and the washing water temperature is set in advance. The temperature is controlled.

  As described above, it is input again to the storage means that the hot water Omakase course was subsequently driven, and it is stored that the number of times of use has become plural. A memory | storage means memorize | stores the frequency | count of driving | running each course which performs a heating, memorize | stores the use frequency, and controls to memorize | store a course with high use frequency preferentially.

  If the hot water Omakase course is preferentially stored in the storage means 48, a less frequently used course, for example, a sterilization course is selected by the hot water course operation setting switch 45j, and the start / pause switch 45e is operated. The controller 44 does not store the sterilization course in the storage unit 48 and starts the sterilization course, and the washing water temperature is controlled to a preset temperature.

  Then, when the power switch 45f is operated in the next use, the 30 ° C. of the hot water automatic course lamp 46d and the temperature display unit 46j are set based on the setting of the hot water automatic course stored in preference to the storage means 48. The lamp lights up.

  As described above, in the present embodiment, after the operation is started by the input setting unit 45 or immediately after the operation is completed, the heating setting of the water in the water tank 26 is performed by the heating unit 41, or the course for heating is selected. Is stored in the storage means 48, the next time the power is turned on, the heating setting by the heating means 41 performed previously, or the operation course can be set as the initial setting, and whenever the user uses it, There is provided a drum-type washing machine that can save the labor of selecting the heating setting of the water in the water receiving tub 26 by the heating means 41 and is easy to use.

  Further, in the present embodiment, the storage means 48 stores the cumulative number of times each course to be heated is operated and stores the frequency of use thereof, thereby preferentially controlling the course having a high frequency of use. Therefore, it is possible to prevent the data stored in the storage means 48 from being rewritten due to the selection of a less frequently used course, to save the user from having to input, and to improve the usability of the drum. Provide a washing machine.

  In the present embodiment, after the power-on switch 45f is input, the heating setting of the water in the water receiving tank 26 by the heating means 41 stored in the storage means 48 is displayed on the display means, thereby heating the user. It is possible to reliably recognize the heating setting of the water in the water receiving tub 26 by the means 41, and to provide a drum type washing machine that is easy to use.

  As described above, the drum type washing machine according to the present invention stores the heating setting by the heating means in the storage means, so that the heating setting by the heating means performed before or when the power is turned on is given priority. The stored content can be set as an initial setting, and each time the user uses it, it is possible to save the trouble of selecting the heating setting of the water in the water receiving tank 26 by the heating means, and the drum-type washing that is easy to use. It is useful as a machine.

The longitudinal cross-sectional view of the drum type washing machine in embodiment of this invention Control circuit diagram of a part of the washing machine Enlarged front view of input setting means and display means of the washing machine Heating washing process diagram of the washing machine Sectional view of a conventional drum-type washing machine

Explanation of symbols

24 Rotating drum 26 Water receiving tank 28 Motor 30 Washing machine body 41 Heater (heating means)
45 Input setting means 45f Power-on switch 45j Hot water course operation setting switch 46 Display means 46d Course setting display section 46j Temperature display section (heating display means)
48 Memory means

Claims (4)

A rotating drum having a rotation center axis in a substantially horizontal direction or a direction inclined from the horizontal direction, a water receiving tub elastically supported in a washing machine casing and containing the rotating drum, and heating water in the water receiving tub Heating means, a motor for rotating the rotating drum, load driving means for controlling the rotation of the motor, input setting means for setting the operation course, washing, rinsing, dehydration and drying A power-on switch for supplying power to each load, a display means for displaying the setting state of the driving course, a storage means for storing data necessary for setting and control of driving, the load driving means and the input Control means for sequentially controlling the setting means, etc., the control means before setting the heating of the water in the water receiving tank by the heating means immediately after the operation is started by the input setting means or immediately after the end of the operation. Drum type washing machine and to store in the storage means. When a course for heating the water in the water receiving tank by the heating unit is selected by the input unit, the control unit is configured to start the operation by the input setting unit or immediately after the end of the operation. The drum type washing machine according to claim 1, wherein the storage means stores that the course for heating water in the water receiving tub has been selected. The drum type washing machine according to claim 1 or 2, wherein the control means gives priority to a course having a high use frequency to store the heating setting of the water in the water receiving tank by the heating means in the storage means. . The control means displays the heating setting of the water in the water receiving tank by the heating means stored in the storage means on the display means after the power-on switch is input. The drum type washing machine according to claim 1.