CN102560960A

CN102560960A - Washing machine

Info

Publication number: CN102560960A
Application number: CN2011103950360A
Authority: CN
Inventors: 反田大介; 小仓范史; 细糸强志
Original assignee: Toshiba Corp; Toshiba Consumer Electronics Holdings Corp; Toshiba Home Appliances Corp
Current assignee: Toshiba Corp; Toshiba Lifestyle Products and Services Corp
Priority date: 2010-12-02
Filing date: 2011-12-02
Publication date: 2012-07-11
Anticipated expiration: 2031-12-02
Also published as: KR101386818B1; TW201233867A; KR20120060741A; TWI468571B; CN102560960B

Abstract

The present invention provides a washing machine. On a panel there is provided an alteration operation unit to enable the plane to be planarized, thereby enabling the profile to be beautiful. On the panel (7) there is integrally provided a touch operation portion (16) using the surface thereof as a touch operation surface (17) operated through fingers. At the back side of the touch operation portion (16) there is provided a static electricity capacitive touch detection electrode (32) used for detecting the touch operation surface (17) touched by the fingers. At the center of the touch detection electrode (32), there is provided a starting electrode (32a); and at the periphery of the starting electrode, there are annularly provided eight fanlike touch dial disc electrodes (32b). With the fingers moving in a predetermined direction on the touch dial disc portion (17b) corresponding to the touch dial disc electrode (32b) in the touch operation surface (17), the set content about operation conditions, displayed on a display portion is changed.

Description

Washing machine

Technical field

Embodiment of the present invention relates to washing machine.

Background technology

In the washing machine of carrying out a setting content of from a plurality of setting contents, selecting, along with the increase of the quantity that can select setting content (operational mode, operation process etc.), some setting content needs to select setting content by the identical operations key continuously.

A kind of structure is arranged, should the time in order to save, as the alter operation unit, the operation rotating disk of operate through rotating is set on panel, according to the required setting content of rotation selection of this operation rotating disk.Structure as the operation rotating disk for example has the structure shown in the patent documentation 1.

Technical literature formerly

Patent documentation

Patent documentation 1: TOHKEMY 2007-185237 communique

Summary of the invention

But the structure of above-mentioned formation needs the hand-held operation rotating disk to carry out rotating operation, so the operation rotating disk is outstanding with respect to panel plane, exists this outstanding operation rotating disk to influence the problem of outward appearance.

And, on panel,, therefore need carry out waterproof measure, so the problem that also exists this waterproof construction to complicate for the setting operation rotating disk need form through hole.

So the object of the invention is to provide a kind of washing machine, has on the panel in the structure of alter operation unit, thereby panel planeization is made appearance looks elegant, and carry out waterproof measure easily.

The washing machine of this embodiment possesses: panel is located on the washing machine body; Display part is located on this panel, is used to show the setting content about service condition; Setting content alter operation unit is located on the above-mentioned panel, is used for alter operation and is presented at the above-mentioned setting content on the above-mentioned display part; It is characterized in that said setting content alter operation unit possesses: touch operation portion, be located on the above-mentioned panel, the surface is as the touch operation face of operating with the finger contact; A plurality of touch detection utmost points, it is an electrostatic capacitive, and is located at the dorsal part of this touch operation portion, is used to detect the operation of finger to above-mentioned touch operation face; Indicative control unit based on the detection signal from above-mentioned a plurality of touch detection utmost points, changes the above-mentioned setting content that is presented on the above-mentioned display part, and the corresponding finger of this detection signal is exported with respect to moving of above-mentioned touch operation face.

Thus, when the change setting content is provided easily, thereby panel planeization is made appearance looks elegant, and carry out the washing machine of waterproof measure easily.

Description of drawings

Fig. 1 is the cutaway view of the touch operation portion of expression first embodiment.

Fig. 2 is the stereoscopic figure of drum-type washing drying machine.

Fig. 3 is the front view of panel.

Fig. 4 is the sketch map that expression touches the configuration of the detection utmost point.

Fig. 5 is a sketch map of watching panel tube portion from dorsal part.

Fig. 6 is the sketch map of expression electrical configurations.

Fig. 7 is the sketch map of the equivalent circuit of expression touch detection circuit.

Fig. 8 is the isoboles of Fig. 1 of expression second embodiment.

Fig. 9 is the front view of the touch operation portion of expression the 3rd embodiment.

Figure 10 is the cutaway view of touch operation portion.

Figure 11 is the front view of substrate.

Figure 12 is the sketch map of the equivalent circuit of expression touch detection circuit.

Figure 13 is used to explain the performance plot that detects principle.

Figure 14 is the performance plot that is used to explain the sensitivity switching.

Figure 15 is the sketch map that is used to explain the LED Alternation Display.

Figure 16 is the sketch map that is used to explain a direction rotation of LED demonstration.

Figure 17 is the sketch map that is used to explain LED opposite direction rotation demonstration.

Figure 18 is the flow chart that Action Specification is used.

Figure 19 is the front view of the substrate of expression the 4th embodiment.

Figure 20 is that expression touches the sketch map of dial plate with the detection characteristic of electrode.

Figure 21 is the cutaway view of the touch operation portion of expression the 5th embodiment.

Figure 22 is the front view of substrate.

Figure 23 is the part amplification view of substrate.

Figure 24 is the sketch map of the equivalent circuit of expression sensor detection circuit.

Figure 25 is the performance plot that is used to explain the sensitivity switching.

Figure 26 is the isoboles of Figure 25 of expression the 6th embodiment.

Figure 27 is the cutaway view of the touch operation portion of expression the 7th embodiment.

Figure 28 is the front view of substrate.

Figure 29 is the front view of the substrate of expression the 8th embodiment.

Figure 30 is that expression touches the sketch map of dial plate with the detection characteristic of electrode.

Reference numeral

2: Washing machine body 7: Panel 9: the display control unit (display control unit, change the operation unit) 16: touch operation section (changing operation unit) 17: touch operation surface (changing operating unit) 17a: Start operation part 17b: Touch dial portion (changing operating unit) 20: running processes display unit (display unit) 21: a display unit 29: Touch sensor unit 32 and 68: The touch detection electrode (changing operating unit) 32a and 69: Start with the electrode (second touch detecting electrode) 32b and 32c: touch dial electrode (changing operating unit) 53: The guide portion 55: LED (light-emitting part)

The specific embodiment

First embodiment

Below, with reference to Fig. 1～Fig. 7 explanation the present invention is useful in first embodiment on the drum-type washing drying machine.

As shown in Figure 2, constitute the washing machine body 2 of the outline of washing dryer 1, have the essentially rectangular case shape of front surface gentle dip.At the upper surface of washing machine body 2, be provided with feed water inlet 3 and top board 4.Front surface central portion at washing machine body 2 is provided with door 5, on this top of 5, is provided with the door button 6 that is used to open door 5.

And, on the front surface top of washing machine body 2, be provided with the panel 7 and the washing agent class throw-in part 8 that form by synthetic resin.The surface of panel 7 forms the downward mild curved surface shape in front side, at the dorsal part of panel 7, is provided with demonstration as indicative control unit with control device 9 (only shown in Fig. 6).

As shown in Figure 3; On panel 7; Be provided with power supply at right-hand member and " open " key 10 and power supply " pass " key 11; Be provided with operational mode key 12～14 and door lock display part 15 on its left side, this operational mode key 12～14 is used for selecting each operational mode of washing, washing dry (washing dried), drying, the situation that these door lock display part 15 expression doors 5 pin down in off position.

Each operational mode key 12～14 has Lighting Division 12a～14a respectively.These Lighting Divisions 12a～14a and door lock display part 15 are thrown light on by the LED background light.

On the left side of operational mode key 12～14, on panel 7, be provided with touch operation portion 16 integratedly.The touch operation face 17 of the surface of this touch operation portion 16 for operating with the finger contact.

As shown in Figure 1, the touch operation face 17 on touch operation portion 16 surfaces forms along the curved surface shape on panel on every side 7 surfaces, is provided with overleaf simultaneously and forms plane planar portions 16a.

In the central authorities of touch operation face 17, be provided with the 17a of start-up operation portion, around the 17a of this start-up operation portion, be provided with touch dial portion 17b with dial plate function.

And, as shown in Figure 4, on touch operation face 17, be provided with rib 18.Rib 18 has annulus 18a and bar-shaped 18b; This annulus 18a is set as around around the 17a of start-up operation portion; This bar-shaped 18b extends from this annulus 18a radially outward side, and this bar-shaped 18b has eight, will touch dial portion 17b and be divided into eight equal portions.

This touch dial portion 17b is used to carry out operation process selection or subscription time setting of one of setting content about service condition etc., and the 17a of start-up operation portion is used to the time-out of beginning of the process of moving and executory operation process.

The inside of relevant touch operation portion 16 is stated after constituting.

Return Fig. 3, the dorsal part of the panel 7 under the touch operation face that is positioned at touch operation portion 16 17 left sides is provided with buzzer 19.

And the left side of buzzer 19 present positions also is provided with the operation process display part 20 (display part) of representing the operation process, is provided with the display part 21 that shows other setting content on its left side.

Below this display part 21, be provided be used to select to wash, the stroke keys 22～25 of the number of times of rinsing, dehydration, dry each stroke or time etc., be used to select whether to use water for bathing water for bathing key 26, be used to select the reservation key 27 of timer reservation time.

Secondly, the inside formation of touch operation portion 16 is described.As shown in Figure 1; In panel 7 inboard outstanding tube 28 (with reference to Fig. 5) of portion cylindraceous that are provided with; With touch sensor unit 29, the planar portions 16a along touch operation portion 16 back sides is close on the dorsal part that is installed in touch operation portion 16 under the state with the surface of touch sensor unit 29.

Touch sensor unit 29 through in shell 30 cylindraceous, take in substrate cylindraceous 31, touch the detection utmost point 32, touch sensor constitutes with integrated circuit 33, connector 34, vibrator 35.

Touch sensor unit 29 through on the protuberance 28b that is provided with on tube portion 28 inner peripheral surfaces, chimericly is located at the recess 30a on shell 30 outer peripheral faces and stops rotation, and goes up through the engaging claw 28a that is connected a plurality of elastically deformables and to be held.

At the upper surface of substrate 31, arrange a plurality of touch detection utmost points 32 that are provided with electrostatic capacitive, this touch detection utmost point 32 is positioned at the dorsal part of touch operation portion 16.This touch detection utmost point 32 is used for detecting finger contact touch operation face 17.

At the back side of substrate 31, be provided with touch sensor with integrated circuit 33, connector 34, two vibrators 35 (in Fig. 1, only illustrating).Substrate 31 is connected electrically in through connector 34 and shows with on the control device 9 (with reference to Fig. 6).

Touch the upper surface of the detection utmost point 32, the guard block 36 that is for example formed by synthetic resin covers.Having an even surface of this guard block 36 is close on the planar portions 16 at touch operation portion 16 back sides.

And, be coated with damp proofly with resin 37 at the dorsal part of substrate 31, this is damp proof to be used to prevent that with resin 37 moisture from invading touch sensor with in the integrated circuit 33.

Fig. 4 is the figure that watches touch operation portion 16 from the front, dots the touch detection utmost point 32 that is configured in touch operation portion 16 dorsal parts, touch sensor with integrated circuit 33, connector 34, vibrator 35.

In the central authorities that touch the detection utmost point 32, the startup of disposing toroidal is with electrode 32a (D0), and the touch dial plate that disposes eight fan-shapeds in this startup with the annular arrangement on every side of electrode 32a (D0) is with electrode 32b (D1～D8).

Start and to be configured in the position corresponding to the 17a of start-up operation portion with electrode 32a (D0), (D1～D8) is configured in the correspondence position of the touch dial portion 17b that is divided into eight equal portions with electrode 32b for eight touch dial plates.

And bar-shaped 18b of rib 18 watches from the front of panel 7, uses electrode 32b to touch dial plate across two adjacency that are equipped on panel 7 dorsal parts.

And touch sensor is with integrated circuit 33 and connector 34, and in the back side of substrate 31, the mode that starts with electrode 32a (D0) with clamping central authorities is provided with and configuration up and down, about two vibrators 35 are configured in.

Fig. 6 is main the electrical configurations of this embodiment of expression.On showing, come self-starting electricity consumption utmost point 32a and touch the signal of dial plate with integrated circuit 33 inputs with electrode 32b and other switch 40 through connection switch 38, cut-off switch 39, touch sensor with control device 9.

And, show with control device 9, based on these input signals, control Lighting Division 12a～14a, door lock display part 15, display part 20,21, vibrator 35, buzzer 19, and to main control unit 41 input signals.Main control unit 41 is used to control the whole action of washing dryer 1.

Connect switch 38 and cut-off switch 39, " open " key 10 and power supply " pass " key through operating power separately, to showing with control device 9 input signals.Other switch 40 is through operating each operated key 12～14,22～27 to showing with control device 9 input signals.

Show with control device 9,, make buzzer 19 and vibrator 35 actions, thereby change is presented at the setting content on the display part 20,21 through the touch dial portion 17b of operation touch operation portion 16.

In touch detection circuit shown in Figure 7, touch sensor with integrated circuit 33 on, can connect a plurality of touch detection utmost points 32, in this embodiment, be connected with a startup with electrode 32a (D0) and eight touch dial plates with electrode 32b (D1～D8).

On starting, be provided with sensor circuit 42 with electrode 32a (D0); This sensor circuit 42 possesses; With resistance 44 with in the fixed capacity 45 that is connected between terminals P 1 and the P2, terminals P 2 is connected startup with on the electrode 32a (D0) with electric capacity 43, discharge in the charging of parallel connection between terminals P 1 and ground wire.

(be connected with sensor circuit 42 separately on the D1～D8) at eight touch dial plates with electrode 32b.

When user's finger contacts the 17a of start-up operation portion of touch operation face 17; Because the electrostatic capacitance of human body; Touch detection utmost point 32a (D0) is in through electric capacity 46 and is connected the state on the ground wire; Thereby touch detection utmost point 32a (D0) at this and go up generation voltage, touch sensor transmits detection signals with integrated circuit 33 to showing with control device 9.

And, when the touch dial portion 17b of user's moveable finger contact touch operation face 17, equally touch dial plate with electrode 32b (produce voltage successively on the D1～D8), touch sensor with integrated circuit 33 successively to demonstration with control device 9 transmission detection signals.

Thus, show, can judge the moving direction that the user points with control device 9.

Through above-mentioned formation; After the user " opens " key 10 and opens power supply by power supply; From washing, washing dry (washing dried), dry three kinds of operational modes, when for example pressing washing mode key 12 selection washing modes, through showing with control device 9; " standard " of the Lighting Division 12a of washing mode key 12 and operation process display part 20 illuminated by background light, and on display part 21, shows wash time " branch ", rinsing number of times " inferior ", dewatering time " branch ".

Each operational mode; Has multiple operation process according to various combination; For example in washing mode; As the operation process, " standard ", " high-temperature steam ", " energy-conservation ", " drying ", " towel (on a small quantity) ", " woollen blanket ", " washing by force ", " self-editing ", " cleaning " are arranged, can therefrom select required operation process.

Then; When the user contacts the touch dial portion 17b of touch operation portion 16 with finger; On touching dial portion 17b as when drawing like the circle moveable finger; Respond moving of this finger, from the above-mentioned touch dial plate of the touch dial portion 17b dorsal part that is positioned at the finger contact with electrode 32b (D1～D8), through touch sensor with integrated circuit 33 to demonstration with control device 9 transmission detection signals.

Based on this detection signal, show the moving direction of judging finger electrodes in contact and finger with control device 9, thereby change is presented at the setting content on the display part 20,21, and, make vibrator 35 and buzzer 19 actions.

Thus, based on the setting content of change, 16 vibrations of touch operation portion are sent sound from buzzer 19.

Through (for example touching on the dial portion 17b to first direction; In Fig. 4 with the clockwise direction shown in the arrow A 1) moveable finger; In the operation process of operation process display part 20, the operation process that is included in the above-mentioned washing mode is illuminated by background light successively one by one.

Have, when the second direction opposite with above-mentioned first direction (in Fig. 4 with the counter clockwise direction shown in the arrow A 2) moveable finger, the operation process is illuminated by background light with reverse order one by one again.

The user stops at the move operation that touches the finger on the dial portion 17b in the place that required operation process is illuminated when confirming that display part 20 shows, thus the selection of decision operation process.

And, when wanting to change wash time, rinsing number of times, dewatering time, operate the operated key 22～24 corresponding with it after, will point contact and move touching on the dial portion 17b, thereby change the numeral of display part 21.

Afterwards; With finger contact start operating portion 17a; Then transmit detection signal with integrated circuit 33 to showing via touch sensor with control device 9 from starting with electrode 32a (D0); Further transmit signal to main control unit 41, thereby carry out operation by main control unit 41 from showing with control device 9.

In above-mentioned, touch operation portion 16, touch the detection utmost point 32, touch sensor with integrated circuit 33 and demonstration with control device 9, play the function that alter operation is presented at the alter operation unit of the setting content on the display part 20,21.

Set example as other, after the user opens power supply, select to press reservation key 27 after required operational mode and the operation process, then be in the state that to set timer reservation through said method.Under this state, the explicit reservation time on display part 21, contact touches dial portion 17b and when prescribed direction moved, the subscription time that is presented on the display part 21 was changed with pointing as the user.

The user stops to touch the operation of dial portion 17b in the place of want time figure and the selection that determines subscription time, and makes finger contact start operating portion 17a, then after having passed through times selected, carries out operation by main control unit 41.

According to this above-mentioned embodiment, can obtain following effect.

Move when making the user point the touch dial portion 17b of contact touch operation portion 16, can change the setting content on operation process display part 20 and the display part 21 easily.

Touch operation portion 16 is located on the panel 7 integratedly, therefore the protrusion as the operation rotating disk needn't be set, so can panel 7 complanations can be made appearance looks elegant on panel 7.

And, do not need as the operation rotating disk, to rotate for panel 7, therefore can carry out waterproof measure easily.Particularly on panel, 7 be provided with touch operation portion 16 integratedly,, can further simplify waterproof measure so needn't on panel 7, establish the hole.

Touch operation face 17 forms the curved surface shapes along panel on every side 7 surfaces; But the back side of touch operation portion 16 forms planar portions 16a; So as the surface of the guard block in the touch sensor unit 29 36, form the plane and get final product, therefore process the surface of touch sensor unit 29 easily.

In touch operation portion 16, be provided with rib 18; So that finger touches bar-shaped 18b of rib 18 when on touching dial portion 17b, moving; Thereby can feeling, the user can be convenient to carry out the alter operation of setting content along with the operation sense of setting content alter operation.Have again, also can do grooving and replace rib 18.

And, the 17a of start-up operation portion that is divided into touch operation face 17 through annulus 18a with touch dial portion 17b, thereby can prevent to touch the situation of the operation mistiming operation start operating portion 17a of dial portion 17b.

Along with finger moves on touch dial portion 17b; When sounding from buzzer 19; Make 16 vibrations of touch operation portion through vibrator 35, touch touch operation portion 16 really so the user can discern with vibration through sound, thus further sense operation sense.

Second embodiment

With reference to Fig. 8 second embodiment of the present invention is described below.Have, the part identical with first embodiment given identical symbol and omitted explanation in Fig. 8, and different piece only is described again.

In second embodiment, panel 48 by panel body 48a be located at the lip-deep diaphragm 48b of panel body 48a and constitute.On panel body 48a, be provided with installing hole 47, on this installing hole 47, touch sensor unit 29 be installed, and touch sensor unit 29 is connected engaging claw 28a and keeping through tube portion 28.

The surface of panel body 48a and the surface of touch sensor unit 29 form the general plane shape, and the thin diaphragm 48b that these surfaces are printed displaying contents covers.

The surface of touch sensor unit 29 promptly, on the surface of guard block 36, replaces the rib 18 (annulus 18a, bar-shaped 18b) in first embodiment, is provided with rib 51, and this rib 51 has annulus 51a and radial bar-shaped the 51b of Duo Gen.

In diaphragm 48b, corresponding to guard block 36 surperficial parts do, with the touch operation portion 49 of surface as touch operation face 50.

In touch operation portion 49, use the position of electrode 32a to be the 50a of start-up operation portion corresponding to the startup of central portion, and to use touch dial plate around electrode 32a to use the position of electrode 32b be ring-type touch dial portion 50b corresponding to being positioned at this startup.

Through above-mentioned formation; When pointing the surperficial touch dial portion 50b of contact protection film 48b and moving; The setting content that is presented on the display part 20,21 is changed through showing with control device 9, when finger contact start operating portion 50a, carries out operation by main control unit 41.

In this second embodiment, on panel body 48a, be provided with the installing hole 47 of sensor installation unit 29, but the diaphragm 48b that covers this installing hole 47 only is set, can take waterproof measure.

The 3rd embodiment

With reference to Fig. 9～Figure 18 the 3rd embodiment of the present invention is described.Have, the part identical with first embodiment given identical symbol and omitted explanation in Fig. 9～Figure 18, and different piece only is described again.

Like Fig. 9 and shown in Figure 10, on the touch operation face 17 of touch operation portion 16, be provided with rib 52.Rib 52 has light transmission; Have with around around the 17a of start-up operation portion and the identical interior all annulus 52a of rib 18a in first embodiment that is provided with; With periphery annulus 52b to be provided with around the mode around the touch dial portion 17b; And with between all annulus 52a in these and the periphery annulus 52b, the guide portion 53 of channeling conduct when on touching dial portion 17b, moving as finger.Therefore, guide portion 53 forms, and touches dial plate with the corresponding ring-type of the configuration of electrode 32b.

And, shown in figure 11, on rear side (starting opposition side), be equipped with to constitute and be positioned at the LED54 of startup with the illuminating part of electrode 32a upper side with electrode 32a side as the substrate 31 of touch operation portion 16 dorsal parts.

Among the LED54, be light-emitting area, on substrate 31, be formed with through hole 54a corresponding to the LED54 light-emitting area corresponding to the side at substrate 31 back sides.Same, like Figure 10 and shown in Figure 11, on the rear side of substrate 31, be equipped with to be positioned at and respectively touch eight the LED55s as illuminating part of dial plate with electrode 32b outer circumferential side.

Among the LED55, be light-emitting area, on substrate 31, be formed with through hole 55a corresponding to the LED54 light-emitting area corresponding to the side at substrate 31 back sides.

In above-mentioned formation, when LED54 was luminous, the through hole 54a that the user can be through substrate 31 and interior all annulus 52a of rib 52 looked and recognize the luminous of this LED54.And when LED55 was luminous, the through hole 55a that the user can be through substrate 31 and the periphery annulus 52b of rib 52 looked and recognize the luminous of this LED55.

In Figure 12,, replace touch sensor to be provided with touch sensor and use integrated circuit 33A with integrated circuit 33 at touch detection circuit.Between this touch sensor is with the terminals P 1 of integrated circuit 33A, P2, be connected with electrochemical capacitor 56, further, terminals P 1 is connected+direct current supply line 57 of 5V on, and terminals P 2 is connected on the ground wire.Touch sensor with integrated circuit 33A in, terminals P 1 is connected on the ground wire through

series resistance

58,59.

Touch sensor has terminals P 3 with integrated circuit 33A, this terminals P 3 be connected as second touch the detection utmost point startup with on the electrode 32a, further, startup is connected on the terminals P 1 of touch sensor with integrated circuit 33A through resistance 60 with electrode 32a.

Touch sensor with integrated circuit 33A in, negative (-) end of terminals P 3 and comparator 61 passes through MOS type when being connected field-effect transistor 62 is connected with ground wire.

The lead-out terminal of comparator 61 is connected on the input terminal of counter 63, and just (+) terminal of comparator 61 is connected on the common tie point of

resistance

58,59, to be applied in+threshold value of 2.5V.

And, send switching command signal 64 to the grid of field-effect transistor 62 and the control terminal of counter 63, constitute starting switch 65 thus.

Have again, open and close command signal 64 and be the pulse signal of high level and low level alternate repetition.

Touch sensor is used integrated circuit 33A; Have eight terminals P 4 (in Figure 12, only illustrating); These terminals P 4 are connected to eight touch dial plates with on the electrode 32b; Further, each touches dial plate and is connected on the terminals P 1 of touch sensor with integrated circuit 33A via resistance 60 with electrode 32b.

Touch sensor with integrated circuit 33A in; On terminals P 4, also be provided with comparator 61, field-effect transistor 62, counter 63; Be applied in switching command signal 64 at the grid of field-effect transistor 62 and the control terminal of counter 63, constitute dial portion switch 66 thus.

The detection principle of sensor detection circuit shown in Figure 12 is described with reference to Figure 13 and Figure 14 now.

At first, starting switch 65 is described.When user's finger does not contact the 17a of start-up operation portion common of touch operation portion 16, start and be connected on the ground wire via electric capacity 67 with electrode 32a.

At this moment, during contact start operating portion 17a common, electric capacity 67 does not become starting the parasitic electrostatic capacitance with electrode 32a user's finger.And during the operation of user's finger contact start operating portion 17a, electric capacity 67 becomes the stack electrostatic capacitance that adds the electrostatic capacitance that is caused by human body with the parasitic capacitance of electrode 32a to starting, and is bigger than parasitic electrostatic capacitance.

Because touch sensor is applied in switching command signal 64 with field-effect transistor 62 grids of integrated circuit 33A and the control terminal of counter 63; So field-effect transistor 62 turn-offed when switching command signal 64 was low level signal (shutdown signal); Shown in figure 13; Electric capacity 67 is recharged, and charging voltage increases gradually, becomes constant afterwards.

The charging voltage of this electric capacity 67, when it is parasitic electrostatic capacitance common, as among Figure 13 with shown in the solid line; More promptly increase; But when being in the operation of the bigger stack electrostatic capacitance of electrostatic capacitance (parasitic electrostatic capacitance+human body electrostatic capacitance), shown in dashed lines among Figure 13, relatively slowly.

Afterwards, when switching command signal 64 became high level signal (opening signal), along with field-effect transistor 62 conductings, the charging charge of electric capacity 67 sparked, thus charging voltage vanishing (0).

On the other hand, comparator 61 is because just (+) terminal provides+threshold value of 2.5V, so the charging voltage that applies to (+) terminal just is lower than+action and produce high level output signal during 2.5V.

Counter 63 is applied in through control terminal and opens and closes command signal 64, drops to low level and is triggered after resetting from this high level, thereby begin the counting action.

Then, when the output signal that puts on the comparator 61 of input terminal becomes low level signal, stop the counting action.Therefore, the count value of counter 63 is represented the actuation time of comparator 61.

In comparator 61; The charging voltage that imposes on the electric capacity 67 of negative (-) terminal reaches+2.5V threshold value and make the time till the output signal becomes low level signal; Is time T 1 at electric capacity 67 during for parasitic electrostatic capacitance common, and when electric capacity 67 be the time T of growing than its 2 during for the operation of stack electrostatic capacitance.

The count value of this counter 61 (time T 1, time T 2) is transferred to as detection signal and shows with control device 9 (with reference to Fig. 6).In this embodiment,, also describe the LED54,55 that demonstration is stated after also controlling with control device 9 with reference to Fig. 6 for the ease of explanation.

In starting switch 65; In the process that user's finger contacts near the 17a of start-up operation portion of touch operation portion 16; Start with the distance between electrode 32a and the finger; Reach with the charging voltage of electric capacity 68+relation of actuation time (being equivalent to the time T 2 among Figure 13) of comparator 31 till the 2.5V threshold value, shown in figure 14.

That is, along with user's finger uses electrode 32a, the electrostatic capacitance of electric capacity 67 to become gradually greatly near starting, so time T 2 is elongated.

Thus; If with the count value (time T 2 signals) of counter 63 as the demonstration of detection signal input with control device 9 on; (time T is a) with than the low threshold value (Tb) of the sensitivity of its big (length) and switch, and then time T 2 is that (time T is a) time, and the finger that is judged as the user approaches the 17a of start-up operation portion for highly sensitive threshold value to preestablish highly sensitive threshold value; Time T 2 is during for the low threshold value (time T b) of sensitivity, and the finger that can be judged as the user touches the 17a of start-up operation portion.

More than; The detection principle of starting switch 65 has been described, the detection principle of dial portion switch 66 is also identical, promptly in the explanation of above-mentioned starting switch 65; The 17a of start-up operation portion is touched dial portion 17b instead, starts to change into electrode 32a and touch dial plate and use electrode 32b, and the omission explanation.

Therefore, shown in figure 14 in dial portion switch 66, on showing with control device 9, (time T is a) with than the low threshold value (Tb) of the sensitivity of its big (length) and switch also can to preestablish highly sensitive threshold value.

Secondly, the effect of this embodiment is described with reference to Figure 15～Figure 18, but aforesaid in this embodiment, for the ease of explanation, also describe with reference to Fig. 6.And flow chart shown in Figure 180 comprehensively shows touch sensor with integrated circuit 33A and the action that shows with control device 9.

When the user was rotated operation (dial plate operation) to touch operation portion 16, touch sensor was with integrated circuit 33A and show with control device 9 flow process of execution Figure 18.At first, judge that dial portion switch 66 has reactionless (determining step S1), when reactionless (" denying "), the sensitivity of starting switch 65 is switched to height (treatment step S12) in determining step S1.

Secondly; Judge whether in the dial plate operation (determining step S3); And whether the finger of judging the user through the detection signal of dial portion switch 66 touches dial portion 17b at rotary manipulation; (" do not deny ") that the sensitivity of dial plate switch 66 is switched to height (treatment step S13) in determining step S3 when operating.

Judge whether user's finger approaches neighbouring (the treatment step S14) of touch operation portion 16, when " denying ", judge that LED55 whether in flicker shows (determining step S16), when flicker shows (" denying "), forwards determining step S7 in determining step S16.

In determining step S7, whether the user of judgement as described below contacts touch dial portion 17b and is rotated operation, (" does not deny ") to return determining step S1 in determining step S7 when operating.

Below, be in repeatedly in the standby of determining step S1, treatment step S12, determining step S3, treatment step S13, determining step S14, S16 and S7.

In above-mentioned standby; When the user makes finger approach the 17a of start-up operation portion of touch operation portion 16 or touch near the dial portion 17b; At this moment; Because the sensitivity of starting switch 65 and dial portion switch 66 is set at height, so can detect these (" being ") in determining step S14, forwards treatment step S15 to.

In this treatment step S15, shown in the (a) and (b) of Figure 15, show to use control device 9 with among eight LED55 whenever at a distance from one totally four be one group, and make it replace luminous demonstration.In Figure 15, the part of blacking is represented luminous.

Afterwards, forward determining step S7 to, determining step S1, treatment step S12, determining step S3, treatment step S13, determining step S14, treatment step S15 and determining step S7 repeatedly afterwards, and on LED55 alternately flicker show.

Have again; This during alternately flicker shows the user make finger when touch operation portion 16 is left; Be judged as " denying " among the determining step S14; And be judged as (" being ") during alternately flicker shows in determining step S16, LED55 turn off the light (treatment step S17) after finger leaves five seconds from touch operation portion 16.

In LED55 alternately glimmers demonstration; When the user makes finger approach the touch dial portion 17b of touch operation portion 16; Think that the dial portion switch responds and in determining step S1, is judged as " being ", thereby the sensitivity of starting switch 65 is switched to low (treatment step S2).

Further, when user's finger manipulation touches dial portion 17b (" being "), the sensitivity of dial portion switch 66 is switched to low (treatment step S4) in determining step S3.

Then, when LED55 is in the alternately flicker demonstration (in determining step S5 " being "), the alternately flicker that stops this LED55 shows, forwards determining step S7 to.Have again, judge when LED55 is not in the alternately flicker demonstration (in determining step S5 " denying "), forward determining step S7 immediately to.

In determining step S7; Sensitivity through dial portion switch 66 is set to hang down by switching judges whether the user makes the finger contact touch under the state of dial portion 17b and be rotated operation; If when being judged as " being ", judge whether the rotary manipulation direction of finger is arrow A 1 direction (clockwise direction in Fig. 9 and Figure 16) (determining step S8).These, the variable condition of detection signal that can be through eight dial portion switches 66 is judged.

Then, (" be ") shown in Figure 16 (a), to show two LED55 luminous (treatment step S9) that make the arrow A 1 direction side of touch operation portion 16 topmosts with control device 9 in determining step S8 when judgement is arrow A 1 direction.

Below, shown in Figure 16 (b), (c), revolution is lighted the next LED55 of (luminous) arrow A 1 direction to this treatment step S9.

And, judge when not being arrow A 1 direction (" denying ") that the direction of operating of user's finger is arrow A 2 directions (counter clockwise directions in Fig. 9 and Figure 17) in determining step S8; So shown in Figure 17 (a); Show two LED55 luminous (treatment step S10) that make the arrow A 2 direction sides of touch operation portion 16 topmosts with control device 9, afterwards, shown in Figure 17 (b), (c); Revolution is lighted the next LED55 of arrow A 2 directions to this treatment step S10.

Subsequently, identical with first embodiment, according to current preference pattern update displayed (treatment step S11) such as selection process or demonstration times.

Afterwards; Same with first embodiment; When the user confirms that display part 20 shows, thereby touch the selection that dial portion 17b determines the operation process, perhaps change wash time, rinsing number of times, dewatering time in the local shut-down operation that required operation process is illuminated.

Then; When making finger contact start operating portion 17a, transmit detection signal with integrated circuit 33A to showing through touch sensor from starting switch 65, further with control device 9; Transmit signal from showing to main control unit 41, thereby carry out operation by main control unit 41 with control device 9.

Have again,, show to make LED54 luminous with control device 9 when when starting switch 65 provides detection signal.

According to the 3rd embodiment; Thereby also can obtain pass through identical and will point the effect that the setting content that changes operation process display part 20 and display part 21 easily etc. the time is moved in contact with first embodiment; Simultaneously, further, the effect that can obtain to be described below.

On substrate 31, be provided with LED54 and LED55 accordingly with electrode 32b with starting with electrode 32a and touch dial plate, thereby the user looked recognize to startup with electrode 32a and touch dial plate user's finger manipulation with electrode 32b.

At this moment, LED54 and LED55, be located at substrate 31 with start with electrode 32a and touch on the rear side of dial plate with electrode 32b opposite sides, thereby can dispose with the back side that electrode 32b be close to touch operation portion 16 starting with electrode 32a and touch dial plate.

Thus, can shorten touch operation face 17 and start with electrode 32a and touch dial plate, thereby can improve Operational Figure Of Merit (touch sensitivity) with the distance between the electrode 32b.

Further; Through on the touch operation face 17 of touch operation portion 16; Through interior all annulus 52a to be provided with around the mode around the 17a of start-up operation portion; With periphery annulus 52b, formed when finger moves guide portion 53 on touching dial portion 17b, so the user can be exactly carried out move operation touching will point along guide portion 53 on the dial portion 17b as guiding to be provided with around the mode that touches around the dial portion 17b.

And; Can be respectively switch to the sensitivity of starting switch 65 and dial portion switch 66 high and low; When so initial manipulation touches dial portion 17b; Sensitivity through with starting switch 65 and dial portion switch 66 switches to height, only makes user's finger approach touch operation portion 16 and can alternately glimmer and show LED55, thereby notify the working condition of user's touch operation portion 16.

When user's rotary manipulation touches dial portion 17b; Switch to low through sensitivity with dial portion switch 66; And be operating as condition when touching dial portion 17b with the user with finger contact and detect action, thereby can confirm the intention that the user operates, can guarantee operation.

And; In the process of pointing rotary manipulation touch dial portion 17b by the user; Even the nearly start-up operation 17a of portion of other finger misconnection for the moment in the operation beyond user's finger; Switch to lowly through sensitivity, can prevent to move commencing signal and be sent to main control unit 41 and carry out maloperation starting switch 65.

Have again, in the 3rd embodiment, in the process of pointing rotary manipulation touch dial portion 17b by the user; Switch to the sensitivity of starting switch 65 low; But also can in the process of pointing rotary manipulation touch dial portion 17b by the user, make to show the detection signal of not accepting starting switch 65 with control device 9, promptly; Ineffective treatment further improves security this moment.

The 4th embodiment

With reference to Figure 19 and Figure 20 the 4th embodiment of the present invention is described.Have, the part identical with the 3rd embodiment given identical symbol and omitted its explanation in Figure 19 and Figure 20, and different piece only is described again.

In the 4th embodiment, replace as the 3rd embodiment on substrate 31, be provided with eight touch dial plates with electrode 32b (structure of D1～D8), shown in figure 19, be provided with four touch dial plates with electrode 32c (D1～D4).

Touch dial plate form with electrode 32c and have 180 degree (°) angular regions roughly circular-arc, central portion is a Breadth Maximum, from this central portion along with narrowing down gradually to outer circumferential side two directions (clockwise direction i.e. counter clockwise direction) width.

Further, touch dial plate and use electrode 32c, be concentric circles to the roughly half the of clockwise direction side with substrate 31, be concentric circles to the roughly half the and substrate 31 of counter clockwise direction side from the central portion in interior week from the central portion of periphery.

And; Four touch dial plates are with electrode 32c (D1～D4); Be configured to ring-type accordingly with touch dial portion 17b (with reference to Fig. 9); Particularly, touching the interior circumferential portion of dial plate with the clockwise direction side of electrode 32c (D1, D2, D3, D4), to separate prescribed distance with the external peripheral zone of the counter clockwise direction side of electrode 32c (D1, D2, D3, D4) corresponding with these touch dial plates of distinguishing adjacent counter clockwise direction side.

Have again, though not shown, respectively touch dial plate and use electrode 32c, dial plate is same with electrode 32b with touching, and constitutes dial portion switch shown in figure 12, and this detection signal sends demonstration to control device 9 (with reference to Fig. 6).

But; In Figure 19; When on substrate 31, being suitable for the touch operation portion 16 of Fig. 9, with uppermost position be 0 degree (°) and user's finger contact is touched under the state of dial portion 17b when the clockwise direction rotary manipulation, the touch dial plate of corresponding finger changes with the area of electrode 32c relatively; So the shape that relatively changes along with this area is also changed by the electrostatic capacitance of finger effect.

Therefore; Shown in the (a) and (b) of Figure 20, (c), (d); By the detection signal (comparator actuation time) of four touch dial plates with the dial portion switch of electrode 32c (D1, D2, D3, D4) formation; Form the signal that 90 degree descended after continuous 90 degree rose in 180 degree scopes, form the detection signal of 90 degree that stagger each other gradually.

Through being sent to, the detection signal shown in this Figure 20 (a)～(b) shows with control device 9; Can infinitely detect the rotary manipulation angle of user's finger; Therefore, also can obtain the effect roughly the same according to the 4th embodiment with the 3rd embodiment.

The 5th embodiment

With reference to Figure 21～Figure 25 the 5th embodiment of the present invention is described.Have, the part identical with the 3rd embodiment given identical symbol and omitted its explanation in Figure 21～Figure 25, and different piece only is described again.

On the substrate 31 in Figure 21 and the 5th embodiment shown in Figure 22, replace the touch detection utmost point 32 in the 3rd embodiment to be provided with and touch the detection utmost point 68.

Touch the detection utmost point 68 by starting with electrode 69 and eight touch dial plates with the electrode 70 (formation of D1～D8); This starts with electrode 69 and touches the detection utmost point as second of the 17a of start-up operation portion of corresponding touch operation portion 16, and (the correspondence touch dial portion 17b of D1～D8) also is configured to ring-type to this touchs dial plate with electrode 70.

And startup is formed by the data side electrode 69a of the rectangle of central portion and the rectangular box-like mains side electrode 69b of its periphery with electrode 69.And, touch dial plate and form by the data side electrode 70a of the rectangle of central portion and the rectangular box-like mains side electrode 70b of its periphery with electrode 70.

Shown in figure 23; Touch dial plate with in the electrode 70; Data side electrode 70a is connected the connection that is provided with in the substrate 31 with on the electrode 71 by scolding tin 72 through through hole, mains side electrode 70b is connected in the substrate 31 with being connected with electrode 71 by scolding tin 74 through through hole and compares connection near the face side setting with on the electrode 73.

Have, though not shown, the signal that starts with electrode 69 is connected to connection with on the power supply with electrode 69a and power supply with electrode 69b too again.Further; On the surface of substrate 31; Be provided with across specified gap and surround start with electrode 69 and touch dial plate earth electrode (shielding) 75 with electrode 70; And, on the roughly whole zone at substrate 31 back sides, being provided with earth electrode (shielding) 76, earth electrode (shielding) 75 is connected by scolding tin 77 through through hole with earth electrode (shielding) 76.

In Figure 24, on touch detection circuit, replace touch sensor to be provided with touch sensor and use integrated circuit 33B with integrated circuit 33A.This touch sensor is connected through resistance 78 on the base stage of NPN transistor 79 with the terminals P 1 of integrated circuit 33B.

In this transistor 79, base stage is connected on the emitter stage through resistance 80, emitter stage is connected+direct current supply line 81 of 15V on, colelctor electrode is connected on the ground wire through resistance 82.

And, touch sensor with integrated circuit 33B in, apply square-wave signal 83 to terminals P 1, this square-wave signal 83 is alternate repetition high level, low level signal in specified period.

Therefore, base stage is applied in the transistor 79 of this square-wave signal 83, and conducting when being in low level is turn-offed when being in high level, thereby can open and close repeatedly.

On the colelctor electrode of transistor 79, be connected with power line 84, when transistor 79 conductings, this power line 84 becomes emitter voltage, and transistor 79 becomes ground voltage when turn-offing.

On this power line 84, be connected with in the mains side electrode 69b that starts with electrode 69, be connected with eight touch dial plates with electrode 70 (in Figure 24, only illustrating one).

Touch sensor has terminals P 2 with integrated circuit 33B, and this terminals P 2 is connected touch sensor with on the A/D change-over circuit 85 in the integrated circuit 33B.

This terminals P 2; Be connected on the data side electrode 69a that starts with electrode 69 through diode 86 in the other direction; When the negative electrode of this diode 86 is connected on the ground wire via resistance 87, be connected on the ground wire, further via electric capacity 88; Positive direction is connected on the direct current supply line 57 through diode 89, constitutes starting switch 90 by these.

Touch sensor has eight terminals P 3 (in Figure 24, only illustrating) with integrated circuit 33B; Between these terminals P 3 and the data side electrode 70a of these eight touch dial plates with electrode 70; Identical with starting switch 90; Be connected with A/D change-over circuit 85, diode 86, resistance 87, electric capacity 88 and diode 89 respectively, constitute each dial portion switch 91 by these.

At this, also with reference to the detection principle of Figure 25 explanation at the sensor detection circuit shown in Figure 24.

At first, starting switch 90 is described.

The 17a of start-up operation portion that user's finger does not contact touch operation portion 16 generally starts with the mains side electrode 69a of electrode 69 and data side electrode 69b and separates and insulate.

The user points under the operational circumstances of contact start operating portion 17a, starts mains side electrode 69a and data side electrode 69b with electrode 69, and the electric capacity 92 of pointing electrostatic capacitance through the user connects.

Thus, during transistor 79 conductings, via power line 84, electric capacity 92, thereby electric capacity 88 is recharged generation voltage, and this generation voltage is applied to A/D change-over circuit 85.

But, in starting switch 90, in the process that user's finger contacts near the 17a of start-up operation portion of touch operation portion 16, start with the distance between electrode 69 and the finger, and the relation between the charging voltage of electric capacity 88 (generation voltage), shown in figure 25.

That is, along with user's finger approaches to start with electrode 69, the electrostatic capacitance of electric capacity 92 diminishes gradually, becomes greatly and produce voltage.Thus; The demonstration that the output signal of A/D change-over circuit 85 is imported as detection signal with control device 9 on; Preestablish the low threshold value (voltage Vb) of sensitivity of highly sensitive threshold value (voltage Va) and the voltage Vb bigger, thereby switch high sensitivity and muting sensitivity than this voltage Va.

So when producing voltage and be highly sensitive threshold value (voltage Va), the finger that can be judged as the user is near the 17a of start-up operation portion, and when producing voltage and being the low threshold value of sensitivity (voltage Vb), the finger that can be judged as the user touches the 17a of start-up operation portion.

More than; The detection principle of starting switch 90 has been described, but the detection principle of dial portion switch 91 is also identical, promptly in the explanation of above-mentioned starting switch 90; The 17a of start-up operation portion is touched dial portion 17b instead, starts with electrode 69 and change the touch dial plate into electrode 70, and omit its explanation.

Therefore, shown in figure 25, in dial portion switch 91, on showing,, can switch through preestablishing highly sensitive threshold value (voltage Va) and the threshold value (voltage Vb) lower than its big sensitivity with control device 9.

Even replace the touch sensor of the 3rd embodiment to use touch sensor to use integrated circuit 33B, also can carry out flow process shown in figure 18 with integrated circuit 33B and on showing with control device 9 at touch sensor with integrated circuit 33A.According to the 5th embodiment, also can obtain the effect identical with the 3rd embodiment.

The 6th embodiment

When the 6th embodiment of the present invention being described, for the ease of explanation, in the 6th embodiment, also with reference to Figure 21 and Figure 24 of the 5th embodiment with reference to Figure 26.

In the 6th embodiment, can be with being applied to touch sensor among Figure 24 with the square wave frequency of the square-wave signal 83 of integrated circuit 33B terminals P 1, switch to the low frequency that high frequency that high sensitivity uses and muting sensitivity are used.

Figure 26 shows, the relation of distance, electric capacity 88 generation voltages and high frequency, low frequency between electrode (startup is with electrode 69 or touch dial plate with electrode 70) and the user's finger.So high frequency is big through the electric current of electric capacity 92 with the low-frequency phase ratio, the voltage that electric capacity 88 produces uprises.

Therefore, even voltage threshold is set at certain Vb, during high frequency; Can detect the situation of finger near 17a of start-up operation portion or touch dial portion 17b; In contrast, during low frequency, can detect the situation that finger touches the 17a of start-up operation portion or touches dial portion 17b.

Have again; If when to switch the sensitivity of starting switch 90 and dial portion switch 91 respectively be high and low; At touch sensor the special-purpose terminals P 1 of the special-purpose terminals P 1 of starting switch 90 and dial portion switch 91 is set on integrated circuit 33B, thus switching frequency respectively.

According to the 6th embodiment, also can obtain the effect identical with the 5th embodiment.

The 7th embodiment

With reference to Figure 27 and Figure 28 the 7th embodiment of the present invention is described.In the 7th embodiment,,, different portions only is described below having given identical symbol with the Figure 21 and the identical part of Figure 22 of the 5th embodiment for the ease of explanation.

In the 7th embodiment; The touch operation portion 16 on the panel 7 of being located at has the protuberance 93 of the circular shape that is positioned at central portion; With the convex strip portions 94 as the circular shape of guide portion that is positioned at around this protuberance 93, the lower surface of protuberance 93 is open, and surface (upper surface) is as the 17a of start-up operation portion; And the lower surface of convex strip portions 94 is open, and surface (upper surface) is as the touch dial portion 17b of ring-type.

In the 7th embodiment, substrate 31 is divided into, and is positioned at the substrate 31A and the circular substrate 31B that is positioned at around this substrate 31A of the toroidal of central portion.On substrate 31A, be provided with startup with electrode 69, on substrate 31B, be provided with eight touch dial plates with electrode 70.

And substrate 31A is provided in the recess of protuberance 93 lower surfaces, starts with electrode 69 corresponding to the 17a of start-up operation portion thereby make, and substrate 31B is provided in the recess of convex strip portions 94 lower surfaces, thus make touch dial plate with electrode 70 corresponding to touch dial portion 17a.

In the 7th embodiment; The part that is used to operate the 17a of touch operation portion is formed on protuberance 93; And the guide portion that leads along touch dial portion 17b is formed on the convex strip portions 94; Have only this point different, also can obtain the action effect identical with the 5th embodiment with the 5th embodiment.

The 8th embodiment

With reference to Figure 29 and Figure 30 the 8th embodiment of the present invention is described.In the 8th embodiment,,, different portions only is described below having given identical symbol with the identical part of the 4th and the 5th embodiment for the ease of explanation.

In the 8th embodiment, be provided with the startup identical with electrode 69 at the central portion of substrate 31, and, be provided with four the touch dial plates identical and use electrode 32c with the 4th embodiment to start around this with electrode 69 mode on every side with the 5th embodiment.

But in the 8th embodiment, four touch dial plates form with electrode 32c, compare littler diameter with the 4th embodiment.

And, on the substrate 31 to be provided with roughly circular common mains side electrode 32d with the mode around the electrode 32c around four touch dial plates.These four touch dial plates are with electrode 32c and mains side electrode 32d, constitute four pairs of electrodes accordingly with the touch dial portion 17b (with reference to Figure 21) of touch operation portion 16, thereby constitute the dial portion switch shown in the symbol 91 among Figure 24.

So; When pointing rotary manipulation touch dial portion 17b by the user; The electrostatic capacitance of finger acts on mains side electrode 32d and four touch dial plates successively with on the electrode 32c; And producing voltage successively on four touch portion switches that constitute with electrode 32c by mains side electrode 32d and four touch dial plates, this produces voltage, respectively shown in the (a) and (b) of Figure 30, (c), (d).Therefore, according to the 8th embodiment, also can obtain the effect identical with the 4th embodiment.

Have, the present invention is not limited in above-mentioned embodiment again, can carry out following distortion or expansion.

Though touch dial plate with electrode 32b (D1～D8), 70 (D1～D8) dispose with annular arrangement; But also can be with a plurality of touch detection utmost points with the linearity alignment arrangements; At this moment, touch operation portion 16 is got final product to extend to be provided with along rectilinear direction with these corresponding mode.In this constitutes, identical with above-mentioned embodiment, thus can the alter operation setting content through contact and moveable finger on touch operation face 17.

Also can compare recessed with touch operation face 17 on every side the 17a of start-up operation portion of touch operation portion 16.Thus, can prevent the situation of the maloperation start-up operation 17a of portion.

According to the washing machine of above-described embodiment, move when the user being pointed be contacted with the touch dial portion of touch operation portion, thereby can change the setting content that is presented at display part easily.

Because touch operation portion is located on the panel integratedly, thus the protrusion as the operation rotating disk needn't on panel, be provided with, thus can panel planeization be made appearance looks elegant.And, do not need rotating as the operation rotating disk, thereby can carry out waterproof measure easily with respect to panel.

More than, several kinds of embodiments of the present invention have been described, but these embodiments are to point out as example, and are not intended to the qualification scope of invention.These new embodiments can be implemented with other variety of way, can in the scope of the purport that does not break away from invention, carry out various omissions, displacement and change.These embodiments and distortion thereof are included in scope of invention and the purport, are included in the scope of invention put down in writing in claims simultaneously and in the scope that is equal to.

Claims

1. washing machine, it possesses: panel is located on the washing machine body; Display part is located on this panel, is used to show the setting content of relevant service condition; Setting content alter operation unit is located on the above-mentioned panel, is used for the above-mentioned setting content that is presented at above-mentioned display part is carried out alter operation;

It is characterized in that above-mentioned setting content alter operation unit possesses:

Touch operation portion is located on the above-mentioned panel, and the surface is as the touch operation face of operating with the finger contact;

A plurality of touch detection utmost points, it is an electrostatic capacitive, and is located at the dorsal part of this touch operation portion, is used to detect the operation of finger to above-mentioned touch operation face;

Indicative control unit based on the detection signal from above-mentioned a plurality of touch detection utmost points, changes the above-mentioned setting content that is presented on the above-mentioned display part, and the corresponding finger of this detection signal is exported with respect to moving of above-mentioned touch operation face.

2. washing machine according to claim 1 is characterized in that,

Above-mentioned a plurality of touch detection utmost point is arranged in ring-type.

3. washing machine according to claim 1 and 2 is characterized in that,

Above-mentioned touch operation portion is located on the above-mentioned panel integratedly; The surface of above-mentioned touch operation face forms the curved while; The back side of above-mentioned touch operation face forms plane, and above-mentioned touch operation portion possesses touch sensor unit; This touch sensor unit has above-mentioned a plurality of touch detection utmost point

Above-mentioned touch sensor unit is to be installed in the surface in alignment of the above-mentioned touch sensor unit state in the above-mentioned back side of above-mentioned touch operation portion the above-mentioned dorsal part of above-mentioned touch operation portion.

4. washing machine according to claim 2 is characterized in that,

Be provided with the guide portion of the guiding elements when moving on above-mentioned touch operation face as finger in above-mentioned touch operation portion, ring-type is arranged in the configuration of this guide portion and the above-mentioned touch detection utmost point accordingly.

5. washing machine according to claim 3 is characterized in that,

Above-mentioned dorsal part in above-mentioned touch operation portion is provided with a plurality of illuminating parts,

When pointing the operation of on above-mentioned touch operation face, moving, above-mentioned indicative control unit changes the luminance of above-mentioned illuminating part.

6. washing machine according to claim 5 is characterized in that,

Can carry out the level of finger detection in the time of can the sensitivity of the above-mentioned touch detection utmost point being set in finger near above-mentioned touch operation face,

When detecting finger near above-mentioned touch operation face based on the detection signal from the above-mentioned touch detection utmost point, above-mentioned indicative control unit changes the luminance of above-mentioned illuminating part.

7. washing machine according to claim 2 is characterized in that,

At the central portion of a plurality of above-mentioned touch detection utmost point of ring-type configuration, be provided with second of the electrostatic capacitive that detects the above-mentioned touch operation face of finger contact and touch the detection utmost point,

The sensitivity of the above-mentioned second touch detection utmost point is set at the sensitivity that is lower than the above-mentioned touch detection utmost point.

8. washing machine according to claim 2 is characterized in that,

In the operation to the above-mentioned touch detection utmost point, it is invalid that above-mentioned indicative control unit makes from the detection signal of the above-mentioned second touch detection utmost point.