CN1723824A - Rice cooker - Google Patents

Abstract

The invention provides an electric cooker, comprising a lid, a hearing device, a control device and an operation unit, wherein the lid covers the top of the electric cooker; the heating device is used to heat the pot, which is contained in the main body of the electric cooker and can be mantled and dismantled freely; the control device supplies power to the heating device; and the operation unit can at least be used to specify the time to start cooking and specify the type of cooking. After detecting the openness of the lid, the control device prohibits the input of at least one of the instructions by the operation unit.

Description

Electric cooker

The application is that application number is 03143095.3, the applying date is on February 27th, 1998, denomination of invention is divided an application for " electric cooker " patent application.

Technical field

The present invention relates to electric cooker general home-use or that special business is used.

Background technology

In recent years, in order to improve the performance of electric cooker, developed and popularized the electric cooker that uses high heating power to cook.The water of also having popularized with same amount can burn till meal the electric cooker of various soft or hard degree.

One of existing this kind electric cooker example has structure shown in Figure 43.In Figure 43, the 1st, the cylinder shell of top opening (electric cooker pot body).Be provided with protective sleeve 2 in the inside of this housing 1 and be used for putting into pot, and this protective sleeve 2 made the round-ended cylinder shape by nonmetallic materials, the interior edge of the upper part of the upper part of protective sleeve 2 and housing 1 combines.

The 3rd, interior pot is partly being done outwards outstanding flange 4 in its upper end open.Because the flange 4 of interior pot 3 is placed on puts on the shelf on 15, interior pot 3 is in vacant state, can freely loads and unloads in protective sleeve 2 the insides.The arranged outside of protective sleeve 2 have be used for heating in the induction coil 5 of pot 3.In order to make this induction coil 5 and the distance of the periphery of interior pot 3 keep certain, below protective sleeve 2 outers, be provided with the coil housing made from the heat stable resin material 6 and support induction coil 5.The middle body of induction coil 5 be provided with pot sensor 19 detect in the temperature of pot 3.

The 7th, use plastic enclosing cover, this enclosing cover 7 is bearing in and make on the hinge member 8 of an integral body on 15 the top of putting on the shelf, can freely rotate around rotating shaft 9.The 10th, inner cap, it is fixed on the inner surface of enclosing cover 7.On this inner cap 10, fixing heater element heat sink 11, an induction coil 12 is being arranged on the top of this heat sink 11.Induction coil 12 is supported by coil supports platform 13.Heat sink 11 heatings are because the electromagnetic action of this induction coil 12.In addition, the adhesive tape that detects the cover sensor 14 usefulness aluminums that heat sink 11 temperature use directly is attached on the heat sink 11, detects the temperature of heat sink 11.

16 is combination member, and it is positioned at an opposite side of hinge member 8 and makes an integral body with the upper part of protective sleeve 2.Opposed with this combination member 16 is to combine handgrip 17, and it is supported on the enclosing cover 7 by handgrip axle 18 and can rotates.In addition, when closing enclosing cover, in being pressed in, pot liner 20 on the flange 4 of pot 3 interior pot 3 is sealed.

In addition, the 21st, steam drum, it prevents that meal thin rice gruel from overflowing to the outside.The 22nd, control circuit board, it is used for controlling the "on" position of heater coil 5 and 12, handles the input/output signal of representing part 23 from the signal and the control operation of pot sensor 19 and cover sensor 14.In addition, 24 is cooling fan, is used for cooling off induction coil 15 and control circuit board 22.

Particularly control circuit board 22 utilizes the temperature detection signal of cover sensor 14, and the rice in the amount of the cooking judgement stroke of the process of cooking in the internal pot 3 and the amount of water are judged, and decided the "on" position of induction coil 5 according to this judged result.

But above-mentioned electric cooker exists following point: excessive with the housing 1 that interior pot is compared electric cooker, be unfavorable for moving and placing.Moreover, because the increase of the software of cooking control recently increases operated key to some extent, for easy to use and strengthen the operated key size and will make electric cooker self become bigger.Moreover, easily overflow owing to adding the water capacity on the other hand, so existing electric cooker ends to supply with the electric power of cooking before water overflows.If do not supply with the electric power of cooking, the situation that the temperature of rice can not fully rise then can appear, and this causes the taste of meal to descend.

Moreover, must switch cover 7 when loading and unloading interior pot 3.Must pin above the enclosing cover 7 sides when particularly closing enclosing cover 7 near housing 1 fronts, and operation expression part 23 be arranged on the hand that might be placed in above the enclosing cover can by to scope in.The problem of mistake by operated key will appear like this.

Moreover, use such electric cooker, if open enclosing cover 7, then cover sensor 14 just can not correctly detect the temperature of interior pot 3 in the process of cooking.So just can not judge whether the amount of cooking is normal, thereby can not realize and the best that the amount of cooking adapts process of cooking.

Moreover, because the heating power height uses than the cooking method of adding water usually as existing electric cooker in order to burn soft especially meal.Easy especially in these cases problem of overflowing.

Summary of the invention

The present invention is the invention that addresses the above problem, and its first purpose is to realize not overflowing and the electric cooker of compact conformation.

Second purpose is the electric cooker of realizing having such structure, promptly contacted the operation part operation that also can not make a mistake when close cap accidentally.

The 3rd purpose provides such electric cooker, can prevent that promptly lid is opened in the process of cooking, and can prevent non-the best process of cooking.

The 4th purpose provides such electric cooker, and it can detect the situation that meal thin rice gruel rises from interior pot, and can prevent to overflow in possible trouble under the situation that does not reduce the quality of cooking.

In order to achieve the above object, the present invention is such electric cooker, comprise: cover lid in electric cooker pot body, be used for heater to the pot heating that is housed in the above-mentioned electric cooker pot body and can freely load and unload, to the control device of above-mentioned heater supply capability and can be used for specifying the operation part of beginning and which kind of cooking function of appointment selection of cooking at least; Above-mentioned control device is forbidden partly importing the above-mentioned indication at least one from aforesaid operations when detecting with the lid off.

Description of drawings

Fig. 1 is the longitudinal section of the electric cooker of the 1st embodiment of the present invention.

Fig. 2 is the partial sectional view of the pith of same electric cooker.

Fig. 3 is the perspective cross-sectional slice of the bottom sensor of same electric cooker.

Fig. 4 is the stereoscopic figure of the same bottom sensor summary of expression.

Fig. 5 is the bottom plan view of same electric cooker.

Fig. 6 is the summary plane of the lid of electric cooking-vessel coiler part of the 2nd embodiment of the present invention.

Fig. 7 (a) (b) is the partial section of the lid of same electric cooker.

Fig. 8 is the pith partial sectional view of same lid part.

Fig. 9 is the pith partial sectional view of same lid of electric cooking-vessel subdivision.

Figure 10 is the summary plane of same lid of electric cooking-vessel coiler part.

Figure 11 (a) (b) is the partial section of the lid of same electric cooker.

Figure 12 is near the sectional view of hinge fraction of same electric cooker.

Figure 13 is near another sectional view of hinge fraction of same electric cooker.

Figure 14 is near the partial sectional view of hinge fraction of same electric cooker.

Figure 15 is near the pith outside drawing the same hinge fraction.

Figure 16 is the pot body outside drawing of same electric cooker.

Figure 17 is the longitudinal section of the electric cooker of the 3rd embodiment of the present invention.

Figure 18 is the sectional view of the steam drum part of same electric cooker.

Figure 19 is the sectional view of the pith of same steam drum.

Figure 20 is the sectional view of the steam passage of same steam drum.

Figure 21 is the float test section of same electric cooker and near the synoptic diagram of steam drum thereof.

The outward appearance plane of the same steam drum part of Figure 22.

Figure 23 is the summary stereogram of the electric cooker meal thin rice gruel checkout gear of the 4th embodiment of the present invention.

Figure 24 is the summary stereogram of the electric cooker meal thin rice gruel checkout gear of the 5th embodiment of the present invention.

Figure 25 is the electric power control chart of same electric cooker.

Figure 26 is another electric power control chart of same electric cooker.

Figure 27 accommodates near the pith outside drawing of part for the interior pot of the electric cooker of the 6th embodiment of the present invention.

Figure 28 represents near the state of the lead-out wire that the electric cooker hinge fraction of the 7th embodiment of the present invention is.

Figure 29 (a) (b), (c) is near the stereoscopic figure of the important component the cooling fan of same electric cooker.

Figure 30 represents the member layout of same electric cooker.

Figure 31 is the stereoscopic figure of the important part of same electric cooker bottom.

Figure 32 is the partial sectional view of the pith of same electric cooker.

Figure 33 is the heater circuit plate stereoscopic figure of same electric cooker.

Figure 34 is near the cutaway view of heater circuit plate of the electric cooker of the 8th embodiment of expression the present invention.

Figure 35 is near the pith exploded perspective view of side coil of same electric cooker.

Figure 36 is the block diagram of the electric cooker of the present invention the 9th～15th embodiment.

Figure 37 is the longitudinal section of same electric cooker.

Figure 38 is the outside drawing of the forward part of lid upper surface of same electric cooker.

Figure 39 is the pith sectional view of the lid open-close checkout gear of same electric cooker.

Figure 40 represents the working procedure of same electric cooker.

Figure 41 is the block diagram of the electric cooker of the present invention the 16th～27th embodiment.

Figure 42 is the movement oscillogram of same electric cooker.

Figure 43 is the longitudinal section of existing electric cooker.

The specific embodiment

(embodiment 1)

Use Fig. 1～Fig. 5 that the 1st embodiment of the present invention described below.

As shown in the figure, the invention is characterized in the layout of function circuit plate, cooling fan etc. and the way of taking for the miniaturization that realizes steam drum, end sensor, heater circuit plate etc.To illustrate in proper order these ways below.

It at first is electric cooker pot body (hereinafter to be referred as the pot body) 31.In the time of on a pot body being arranged on induction such as stainless steel pyrogenicity material, the position that generates heat because of induction field can appear on these materials.Therefore existing technology generally is to make between the bottom surface of end heater coil 32 and pot body 31 to maintain a certain distance.Owing to exist such distance, so can there be enough excess room to design the height of end sensor 33.

Yet, realize that the miniaturization of pot body 31 just is necessary to reduce this floor space part.Some countermeasures have been taked for this reason.At first, as shown in Figure 5, be provided with the anti-magnetic sheet made from aluminium etc. 34, make the bottom of pot body 31 have the structure that magnetic field is difficult for passing through at the bottom surface portions of pot body 31.Moreover, though it is well-known technology on electromagnetism cooker etc. that so anti-magnetic sheet 34 is set, but when being used in this electric cooker, unloading the aluminum component of the sensor 33 of going to the bottom and anti-magnetic sheet 34 is set, make the bound fraction of ferrite and end sensor 33 and anti-magnetic sheet 34 opposed simultaneously.So just further improved antimagnetic effect.

Secondly, for reducing the distance of short transverse, second countermeasure is to dwindle the height of end sensor 33.Relevant this point, at first be the line of the spring 36 of pot on 35 bottom surfaces in being used for end sensor 33 is pressed to directly do than in the past carefully.Can keep same height like this to shortening spring 36 under the situation of the bottom of a pan pressure.Have, the holding wire 38 of end thermistor 37 and the lead-out wire of temperature fuse 39 are not to draw from the bottom of end sensor 33 resembling in the past, but draw from the part of cylindrical portions may 40, so just make the short transverse cripetura again.At this moment, for the ease of holding wire 38 is installed, opened the otch 41 of "＜" shape from the bottom surface of the cylindrical portions may 40 of end sensor 33, holding wire 38 is lain prone in this place.

Have, if fall the height of the cylindrical portions may 40 of end sensor 33 lowly excessively, heat can take place be trapped in problems such as end sensor 33 inside, this might cause the sensitivity step-down of end thermistor 37.For fear of this situation, in the altitude range of the leg 42 of pot body 31, be provided with ledge 43 in the bottom of end sensor 33.An interior pot 35 and pot distance of body 31 bottom surfaces can be shortened like this, the height of the cylindrical portions may 40 of end sensor 33 can be guaranteed again.

Have again, for the magnetic field that prevents end heater coil 32 spills electric cooker pot body outside, simultaneously in order to promote the internally eddy-current heating of pot 35, from the past just in the periphery of end heater coil 32 and be arranged in radial with end heater coil 32 about 6 ferrites 44 of steering handle that meet at right angles.But 3 in the middle of this is to be fixed on the position that covers exterior loop 45a, and that does like this reasons are as follows.One, the surface area of comparing interior loop 45b with exterior loop 45a is less.Its two since interior loop 45b bottom surface be provided with the anti-magnetic sheet of making of aluminium etc. 34 by pot body one side, can guarantee antimagnetic effect, etc.Therefore, adopt such structure, just be more prone to reduce the height of pot body 31.

(embodiment 2)

Use Fig. 6～16 couple the present invention content relevant etc. to describe below with lid.

At first, to how to handle the function circuit plate and the heater circuit plate that are arranged on previous section, bottom surface portions in pot body in the past described.For avoiding the placement part of electric cooker is carried out unnecessary heating as mentioned above, the space length of pot body bottom surface portions was absolutely necessary in the past.Therefore, such space segment has been treated as be placed as the place that makes previous action become possible function circuit plate etc.But, these parts are placed on the lid part of pot body and a following band of hinge fraction, the space of pot body previous section has not just needed, and can effectively utilize the following of hinge fraction and lid volume inside.So just can realize the miniaturization of pot body previous section and bottom surface portions.

But, the function circuit plate 46 of present embodiment is located at the inside of lid 47, also there is following problem.At first, be provided with in the inside of lid 47 and cover coil 49, it is to be used for heating being arranged on the heat sink 48 that can freely load and unload below the lid.Therefore must make circuit board have the structure of the influence of magnetic field that is not subject to this lid coil 49.Have again, steam drum 50 and cover sensor 51 etc. must be set in lid 47 inside.The place is set so just to be restricted.Also have, must control the unnecessary growth of lid 47 weight.

At above problem, at first, the microcomputer on function circuit plate 46, the bottom of IC etc. is provided with top iron and screw oxysome 52 nearby, covers the influence of the magnetic field of coil 49 to microcomputer and IC etc. in order to lower.Next is the method to set up that changes top iron and screw oxysome 52.Be as shown in Figure 10 in the past, be arranged to radial in the vertical direction of lid coil 49.And be as shown in Figure 6 now, be arranged at along the direction of lid coil 49, and the quantity of top iron and screw oxysome 52 is reduced to 3 from 6.This change is to be conceived to the coverage of top iron and screw oxysome 52 at circumferencial direction.A rectangular top iron and screw oxysome 52, its long limit is about 3 double-lengths of minor face.Though number is kept to original half, it increases on the contrary in the coverage of lid coil 49 circumferencial directions.Use the top iron and screw oxysome 52 of about half in the past just may obtain being higher than the effect of performance in the past like this.Use such structure, just may lower the influence in circumferencial direction magnetic field more in the past, can also control the increase of lid 47 weight.

Secondly, under the function circuit plate 46 that places lid 47 inside, cover sensor 51 is set.So just can effectively utilize and cover 47 volume inside, and can be in design to looking after property easy to assembly.

Below concrete structure is described.Inboard at lid 47 is provided with detachable heat sink 48.This is in order to allow the electric cooker user can keep the cleaning of this part in use, so make detachable parts, easily to carry out whole cleaning.Yet,, just can not obtain satisfied cooking function if cook at the state that takes off this heat sink 48.Whether therefore must detect this heat sink 48 has been installed on the electric cooker really.Moreover, for improve cook performance electric cooker in recent years internally the temperature in the pot 35 detect, take from the cook means of state of this temperature estimation.Here make cover sensor 51 have such function concurrently.

Moreover, cover sensor 51 is contacted with heat sink 48.Use sensor spring 53 that cover sensor 51 is pushed up downwards for this reason.Surround with materials such as aluminium simultaneously and cover thermistor 54 to avoid being covered the influence of magnetic field of coil 49.In addition, cover sensor 51 is different with sensor 33 of the above-mentioned end.Owing to do not add big factors such as load on one's body 51 of cover sensors, comparing with end sensor 33 can must be lower the strength control of sensor spring 53, so just can do this part lessly.In addition, in order to prevent the inside of intrusion lids 47 such as water vapour, liner 55 must be set, near cover sensor 51 to guarantee the sealing of this part.

Have again, cover sensor 51 cylindraceous, its bottom surface is made into the shape of middle body depression.This is to make this bottom surface portions all can be pressed on cause on the heat sink 48 in order to improve temperature detection capabilities.In addition, this cylindric cover sensor 51 can not force the Y-axis occurred level of cover sensor 51 to move when self moving up and down, so just can be corresponding with the delicate inclination of heat sink.Allow the edge of bottom surface portions depression have contact at 3 with heat sink 48.

Have, as shown in Figure 7, heat sink 48 is contained on the lid 47, cover sensor 51 has gone above just being pushed up.Because what this made progress moves, the magnet 56 that is contained in the cylindrical portions may part of cover sensor 51 also moves thereupon.The mobile of this magnet can be detected by tongue contact-making switch 57, thereby just can confirm whether heat sink 48 has been loaded onto.

Here, this cover sensor 51 is together put into the installation of function circuit plate 46 with in the unit 58.So just can be used as a unit to function circuit plate 46 and cover sensor 51 and handle, improve property easy to assembly.And be not only property easy to assembly, this cover sensor 51 be arranged on function circuit plate 46 below, just can shorten holding wire from lid thermistor 54, also just can avoid this holding wire to be subject to the problem of noise jamming.

Have again, excessive high temperature occurs, on function circuit plate 46, avoid being provided with the element of heating such as triode ac switch, under function circuit plate 46, be provided with simultaneously and cover thermistor 54 in order to prevent that lid 47 is inner.In the temperature that detects heat sink 48, also may directly detect whether to have reached and apply dysgenic temperature for the function circuit plate like this.

In addition, the installment state of heat sink 48 is to use the magnet 56 that moves with moving up and down of cover sensor 51 to wait to detect in the present embodiment.Be limited to this embodiment yet be not only, for example also can detect with the heat sink magnet 58 that is arranged on the heat sink 48.

Have again, planar structure is made to pursue the attractive in appearance of it in the top of lid 47.Can place spoon etc. accidentally in this part this moment and be responded to and heated object easily, be necessary to prevent therefore that this part is heated and heats up.For this reason, on the lid coil 49 of lid 47 inside, be provided with the anti-magnetic sheet of making of materials such as aluminium 59.

Moreover, in the present embodiment, in the inside of lid 47 setting operation circuit board 46 grades, cancelled the parts of pot body 31 previous sections, and the hinge fraction 60 of pot body 31 aft section below the concentrated parts of having placed of a band.This makes center of gravity deflection back one side of pot body, and pot body integral body situation of overturning backward unexpectedly might take place in the lid off.So, be necessary to prevent that such state of affairs from taking place.

That is to say that press eave tile handgrip 61 in the present embodiment, the combination of this part has just been thrown off, be arranged on the direction that the hinge spring 62 on the hinge fraction 60 is pushed out lid 47 to simultaneously.Because the previous section of pot body 31 not have heavier parts etc., thus when lid 47 is opened as if the too quickly easy generation of the strength situation of overturning backward.Under the circumstances, as shown in figure 12, on hinge fraction 60, be provided with plate-shaped springs 63.The angle of opening along with lid 47 increases, and plate-shaped springs 63 just increases the thrust towards closing direction.As shown in figure 12, the angle of opening along with lid 47 increases, and plate-shaped springs 63 just increases the contact angle with resin part 64, so just increases thrust in the opposite direction gradually.Adopted such structure, just can prevent that the strength when opening owing to lid 47 from making pot body 31 overturning rearwards unexpectedly.Have again, as shown in figure 16, be provided with rib (leg) 65, to prevent 31 overturnings of pot body in pot body 31 aft section substantial middle.

In addition, be about carrying pot setting of the handle of body 31 usefulness.Owing to below hinge 60, be provided with heavier factors such as parts, prevent when pot body 31 is mentioned that it from receding.Load onto Handle axis by rear portion one side in the middle of the pot body, make it near position of centre of gravity to increase convenient in carrying.

(embodiment 3)

Describe near using the steam drum of Figure 17～Figure 27 below the 3rd embodiment.As shown in the figure, the invention is characterized in that the sensor that uses in the steam drum prevents to overflow and way for realizing using electric cooker more easily to take.I.e. height (or thickness) in order to reduce lid 47, it is low to do the height of steam drum than in the past, adds the complex function that detects lid 47 open and-shut modes simultaneously.

Specifically, the steam drum 50 that float 66 is contained in inside is set, float 66 can move when opening and closing lid 47; And float test section 67 is set in pot body front portion near steam drum 50 is used for detecting moving of this float 66 and has or not.Utilization sub 47 o'clock floats 66 switching that detects lid 47 of moving of uncapping to hinge fraction 60 1 sides.In addition, whether exist to come whether steam drum loaded onto with float and detect.

Have, as Figure 18～shown in Figure 20, when lid 47 is in closed condition, float 66 is arranged on the position above the exhaust outlet 68 that covers steam again.Float 66 is made cylindric or spherical so little shape of contact resistance by magnet.And being provided with steam passage 70 50 li of steam drum, its side on float 66 maintains bigger space; Float 66 can move in steam passage 70.The 70a of inner surface up and down at steam passage 70 is provided with the groove of using for the mobile guide of float 66 69 on the 70b; And on the whole girth of float 66, being provided with ledge 71, it is used for being led by groove 69.The meal thin rice gruel outlet 68 of steam passage 70 not only is arranged on the bottom surface but also is arranged on the side, like this because of the vapour pressure that has from the side, so float 66 rolls easily.In addition, this groove 69 forms the passage of this meal thin rice gruel when meal thin rice gruel takes place, and can prevent that also float 66 from can not move because of meal thin rice gruel becomes simultaneously.

Have again, can consider the structure of these float 66 grades like this.For example, make float 66, use tongue contact-making switch 57 to constitute float test section 67 with magnetic material; Or as mentioned below, make float test section 67 with optical sensor, according to whether having reverberation to wait the existence that detects float 66 from float 66.No matter use which kind of structure, all to determine the structure of float 66 according to following factor: the one, when only having steam, can not move by float itself, but mobile weight along with the rising of meal thin rice gruel, the 2nd, the angle of inclination on the inclined-plane, bottom of steam drum 50, the size in steam passage 70 and float 60 formed spaces in addition.Obtained relation between this weight etc. and the meal thin rice gruel according to experiment.When using the float of cylindrical (diameter 14mm, long 10mm), suppose that the space sectional area between float 66 and the steam passage 70 is 75 square millimeters of (mm ²), the angle of inclination on inclined-plane, bottom is about about 12 degree, and the result of suitable action is made in the rising that has just obtained the meal thin rice gruel that the weight about 2～4 grams (g) overflows when cooking.Also obtain following result in addition, promptly under these conditions, the space sectional area is approximately 60～90 square millimeters, when the bottom surface angle is approximately in 5～15 scopes of spending, can occur flase drop in the action of float and survey.

Have again, sloping portion 72 be located at the top of steam passage 70 in the bottom of steam drum 50, steam drum 50 inner products have meal thin rice gruel will flow back into by steam passage 70 in the pot 35, below steam drum 50, just return valve needn't be set like this.

Have again, do the volume in the steam drum 50 little in order to realize miniaturization; Detect moving of float 66 with float test section 67, control to heater (heater) supply capability according to this testing result.And be to control to end heater coil 32 supply high frequency electric power in the present embodiment, so just can use steam drum 50 than volume was littler in the past.Be so specifically, be accompanied by meal thin rice gruel and rise in the steam passage 70 that meal thin rice gruel accumulates in the following obstruction steam passage 70 of float 66; This causes moving of internal pressure rising and float 66; Float test section 67 detects the action of float 66, has so just obtained above-mentioned effect.

At this moment the internal pressure of stopping up steam passage 70 by meal thin rice gruel and producing is about 2～3cm water column height in above-mentioned structure, do not worry because of the high distortion that lid takes place of pressure etc.

In addition, the motion by float in the present embodiment waits and detects the different of rise well with cooking thin rice gruel and steam.Yet this detection might not utilize moving etc. on the mechanical meaning; Also can utilize the difference on the physical propertys such as the viscosity of meal thin rice gruel or thermal capacity.

Have, lid switch 47 can cause the strenuous exercise of float 66 sharp again.For the inside of unlikely damage float 66, steam drum 50 and steam passage 70, cover the surface (71a is an elastomeric material among Figure 20) of float 66 with padded coamings such as rubber elastomeric material or synthetic resin; Near the steam drum terminal point that float 66 moves 50 lateral parts are provided with the rib of reinforcing usefulness in addition.Can prevent steam drum 50 with this structure, the breakage of steam passage 70, float 66 in addition, covers float 66 with elastomeric material and can lower the sound that sends when float 66 moves.

Have, as shown in figure 22, can pull down with the same steam drum 50 of technology in the past, the user can freely carry out whole cleaning to it like this.But done following improvement in the present invention again.In order when steam drum 50 is installed, always to allow float 66 mutually opposed, on steam tube 50, done convex shoulder part 73, with the convex shoulder part 73 corresponding recesses 74 that on lid 47, are provided with float test section 67.Can guarantee the accuracy of detection of meal thin rice gruel like this, can do the operation part 75 in the place ahead greatlyyer again.Have again, outlet 68 is located at the minimum point of bottom surface, make and also can guarantee spatter property in this to stay in the steam drum 50 washing later shipwreck with water.

Have, when float 66 had moved about 1/3 such short distance of whole displacement (inclined-plane) in steam passage 70, float test section 67 just detected moving of float 66 again.When cooking on a small quantity and with the soft meal process of burning and the process of cooking congee that low-heat is cooked, also can detect meal thin rice gruel like this.

Have, as shown in figure 21, tongue contact-making switch 57 is loaded into 76 li in tongue contact-making switch box again, is that the method with the filled silicon rubber elastomeric material fixes, and be arranged on steam drum 50 near.As everyone knows, the magnetic force of magnetic strong more or with easy more detection of the near more tongue contact-making switch 57 of the distance of magnetic.Tongue contact-making switch 57 is made the roughly shape of the Eight characters, and float 66 has just shortened with the distance of tongue contact-making switch 57.So just can make the detection of meal thin rice gruel become more infallible by the accuracy of detection that improves tongue contact-making switch 57.

Have, at the steam port 77 that steam drum 50 upper surfaces are provided with, its opening direction is towards oblique upper and towards the direction of pot body 31 back again; The position of steam port 77 is by pot body front one side on steam drum 50.The steam row that can take place when cooking like this is to the rear of pot body 31 side, thereby can prevent that steam from dropping on the operation part 75 at the dewfall or the spittle on the operation part on the lid 47 75, can also prevent with the lid off 47 o'clock the water droplet of dewfall in steam drum 50, drip down.

Have, the detection of the open and-shut mode of lid 47 is to utilize the float 66 that is arranged on steam drum 50 inside to carry out again.Float 66 has just separated with float test section 67 when lid 47 is being opened.And during close cap 47, can close it by the upper part of lid 47 with hand.On the other hand, owing to above the lid 47 function circuit plate 46 being arranged, the situation of careless push button may take place also when close cap 47.For above-mentioned consideration, forbid in the certain hour after lid 47 is shut accepting from function circuit plate 46 by key input signal, to forbid not the being operation that the user has a mind to.In addition, come out this declaration of will by expression part 78 in order to allow the user understand the reason of not accepting this button operation easily this moment.

Have, consider and might pin lid 47 accidentally for a long time when close cap 47, so the user is not easy to see clearly the button of its actual operating state, the button of the process kind of for example selecting to cook is arranged on the middle position of front.So, just begin to wait button to be arranged on the top anterior position of lid 47 cooking, promptly during user's close cap 47 easily by the position of arriving.Because the button as the beginning of cooking is started working just in case it is switched on electric cooker, the user can understand its variation with comparalive ease.

In sum, in the present embodiment, utilize the mobile meal thin rice gruel detector of making of float, thereby the enough easy structures of energy detect the generation of the thin rice gruel that rises well with cooking.The meal thin rice gruel that above-mentioned float takes place in the open-close lid period of the day from 11 p.m. to 1 a.m and pot moves when expanding and shrinking.Have again, make sloping portion in the bottom surface of steam drum; And float is to make with cylindric or spherical ferrite, can freely roll on above-mentioned sloping portion; The float test section is made of the tongue contact-making switch.The float structure is applicable to detects meal thin rice gruel.

(embodiment 4)

Narrate with regard to the 4th embodiment below.In Figure 23, the inner surface of 79 expression steam drum 50,80 is the hole of steam drum 50 following sides, 81 is the hole of sides above the steam drum 50.In steam drum 50, meal thin rice gruel rises by the hole 80 of a following side.

82 is the luminous component of optical sensor, and 83 is the light accepting part branch.The hole 80 of a side below meal thin rice gruel has passed through is passed through between luminous component 82 and light accepting part divide 83 again.

In the present embodiment, when meal thin rice gruel through below the hole 80 of a side, divide 83 by luminous component 82 and light accepting part between the time, light is interdicted, meal thin rice gruel is detected, so stop inwardly pot 35 supply capabilities.In for example IH (indirect induction) heating, because power supply stops, the rapidly disappearing of meal thin rice gruel.As mentioned above, having possessed such meal thin rice gruel checkout gear just can prevent and overflow.

(embodiment 5)

Narrate with regard to the 5th embodiment below.84 is meal thin rice gruel electrode in Figure 24.When the hole 80 of a side below meal thin rice gruel has passed through, electric current just flows through between the electrode 84,84 when accumulating between the electrode 84,84.Also have additive method in addition, for example ptc heater is arranged on passing through on the path of meal thin rice gruel, to detect the variations in temperature that heat of evaporation causes.So also can be it as sensor.

In the present embodiment, if meal thin rice gruel is the hole 80 by a following side, and accumulates between the electrode 84,84; Then current flowing between the electrode 84,84 just can similarly prevent to overflow by detecting this electric current with the foregoing description.

Above-mentioned meal thin rice gruel checkout gear is arranged in the lid, for example is arranged in the steam drum, just can accomplish to install simply, clean easily, can make it become the meal thin rice gruel detection segment of cleaning.

In addition, meal thin rice gruel checkout gear is arranged in the path of meal thin rice gruel, the top of pot 35 in for example being arranged on just can make the meal thin rice gruel checkout gear of its one-tenth for ease of safeguarding.

Just like Figure 25, shown in 26, in case meal thin rice gruel takes place, above-mentioned structure just can stop inwardly pot supply electric power according to the signal of meal thin rice gruel checkout gear again.On the other hand, in case having stopped of meal thin rice gruel, float is just got back to original position.At this moment detect this variation,, just restart inwardly pot supply electric power, and the electric power that inside pot is supplied with always is peak power with above-mentioned opposite.Electric power by the inside pot of switching on or off of such detection meal thin rice gruel is supplied with, and just can heat rice and water fully when cooking, thereby can burn good to eat meal.

(embodiment 6)

Use Figure 17 below, near Figure 27 internally structure of part of accommodating of pot 35 describes.Interior pot 35 is housed in the protective sleeve 85 that places in pot body 31.When packing into, the cap 86 of putting on the shelf that is arranged in three places, protective sleeve 85 upper parts with the interval equably supports interior pot 35, and locatees for interior pot 35 with the rubber that prevents interior pot of rotation usefulness 87 at three places, middle part that are arranged in edges in the protective sleeve 85 at interval equably.Here, with above-mentioned put on the shelf cap 86 and prevent in the rubber 87 of pot rotation usefulness 60 degree that stagger mutually alternately line up.When being placed on interior pot 35 in the protective sleeve 85 situation of secundly can not take place, and can make the distance between interior pot 35 and the end heater coil 32 impartial so everywhere.The fierce blister meal thin rice gruel that seethes with excitement takes place in the part that just can reduce in interior pot 35 with said method, can reduce meal thin rice gruel and rise to steam drum 50.

(embodiment 7)

Use Fig. 1 and Figure 28～Figure 33 that near hinge fraction 60 following structures are described below.

Run into some problems when being arranged on heater circuit plate 88 grades below the hinge fraction 60, particularly how to have guaranteed the problem that cooling performance and water droplet drip down around the hinge fraction 60.

Can be stained with water around the hinge fraction 60 at 35 o'clock in that steam drum etc. or interior pot are installed, water is by invading a pot body inside easily around the hinge fraction 60.So, when heater circuit plate 88 being set, just must manage to guarantee the insulation of electric parts at this place, in addition, when heater circuit plate 88 is arranged on hinge fraction 60 following, 89 the routing problem of also will considering to go between.Lead-in wire 89 is electrically connected by hinge fraction 60 and the function circuit plate 46 that is arranged on the lid 47.As shown in figure 28, for addressing this problem, will go between and 89 on longitudinal direction, make the S shape.Adopted such structure, flow to the water of lead-in wire on 89 etc. and just can not be stained with on the heater circuit plate 88.Specifically, become above-mentioned S shape, be arranged alternately vertical rib 90,91 at hinge fraction 60 in order to make lead-in wire 89.Also extended minimum point 92 opposed parts with S shape wiring, and should make its with pot body 31 between reserve plurality of gaps.And be provided with the electric parts of heater circuit plate 88 grades in this extension 93 inboard foremost.

In addition, on the cover plate 94 of hinge fraction 60, be provided with fan-shaped rib, to prevent that water from dripping mistake and dripping to above heater circuit plate 88 grades.

Have again,, cooling fan 95 is located on pot angle of body bottom, make it possible to cool off end heater coil 32 or heater circuit plate 88 in order to ensure cooling performance.Specifically, be provided with heater circuit plate 88 etc., the problem relevant with heat radiation takes place easily owing to below hinge fraction 60, concentrate in such narrow space.Therefore, as shown in figure 29, on the angle of pot body 31 bottoms, be provided with cooling fan 95, and partly be provided with suction hole 96 with 95 opposed pots of bodies of this cooling fan.In addition, in front, pot body bottom and lower side be provided with steam vent 97.So just the cold air from suction hole 96 inspirations successfully is directed to front or side through heater circuit plate 88 and end heater coil 32.

About this point, be the bottom that cooling fan 95 flatly is contained in pot body in the past.And in the present invention, be to realize the miniaturization of pot body 31, once cooling fan 95 flatly is contained in the bottom of pot body according in the past method, but the cooling performance of the satisfaction of failing to obtain.Its reason is as follows: be accompanied by miniaturization, the distance between the bottom surface of interior pot 35 and pot body 31 has shortened.Therefore can not obtain enough spaces under the situation that cooling fan 95 flatly is set comes inspiration cold wind, and the wind path resistance below the cooling fan 95 is very strong.In addition, horizontally disposed the time, it also is one of reason that increases the wind path resistance that cold wind is difficult to flow to the place ahead.For above-mentioned reasons, cooling fan 95 is obliquely installed, makes the lower corners of pot body 31 have very big R simultaneously, suction hole 96 is set, make it mutually opposed with cooling fan 95 in such part.

Have again, as shown in figure 30, power cord winding frame 98 is arranged on the angle of pot body 31, any one of heater circuit plate 88 or power supply circuit board 99 is arranged on the angle with said power bobbin winder bracket 98 opposite sides.Use such structure to effectively utilize space below the hinge fraction 60.In addition, power cord winding frame etc. in the vertical in be trapped among the protective sleeve 85 around the pot 35 arrange.So just can surround protective sleeve in a big way, make their double as heat-shield mechanism, performance is the insulation effect of pot 35 internally.

Have again, power cord winding frame 98, its be used for power supply circuit board 99 joining power line terminals 100 1 sides outside pot, and the extension 101 of power cord winding frame 98 is towards the back of pot body 31.Adopt such structure, the ectosome of power cord winding frame 98 just can have the wind direction guiding function with cold wind guiding heating circuit board 88 1 sides of cooling fan 95.

Have, as shown in figure 31, the power line extension 101 of power cord winding frame 98 is to discharge backward from the bottom of pot body 31 again.As parts of conveying end, can double as is above-mentioned be used for preventing that pot rib of body overturning 65 from using near this extension 101.Moreover, this power cord winding frame 98 have anti-magnetic by pot body one side because of the armouring of power cord winding frame 98, can be used for loading those and be afraid of affected by magnetic fields and parts heating, as sensor etc.

Have, meeting at right angles with heater circuit plate 88 is provided with fin 102, on this fin 102 cooling fan 95 is housed again.The cross section of this fin 102 is roughly triangle, and it is directed to the cold wind air-flow side or the front of pot body 31 from the suction hole 96 at pot body 31 rear portions.For this reason, the blade 103 of fin 102 is arranged on towards the direction of pot body front and back.In addition, the heater element on the heater circuit plate 88 is contained on this fin 102 to guarantee the cooling to them.Simultaneously, screw mounting portion 104 is loaded onto in the impact that causes in order to reduce that pot body falls down etc. in the part of heater circuit plate, be fixed on this screw mounting portion 104 with key screw fin 102.

Have, supply with the lead-in wire that electric currents are used about giving end heater coil 32, be with the wiring part on the heater circuit plate 88 in the past, and end heater coil 32 is connected with wiring part branch on the heater circuit plate 88.Usually in order to supply with big electric current, this wiring part must be used bigger parts, and this has just hindered the miniaturization of pot body.Because above-mentioned situation, the distribution of heater circuit plate 88 adopt modes such as the interior connection of plate, to avoid the burden of coupling part on the heater circuit plate 88.Lead terminal coupling part 105 is set on protective sleeve 85, so just can guarantees assembly quality and assembly space.

Have, be contained in the heater circuit plate 88 on the fin 102, the many elements of the heating above it are installed in a following side, and the space of effectively utilizing the top is as cooling space.Specifically, be arranged on the fin 102, simultaneously many rectifier cells of heating etc. be arranged in a following side being used for controlling to the IGBT of end heater coil 32 supply high frequency electric power etc.

Have again,, be provided with rib 106, and this rib 106 is used as the above-mentioned rib that prevents that overturning rearward from using comes dual-purpose in order to prevent near suction hole 96, to mix from the exhaust of steam vent 97 and the cold wind of air-breathing usefulness.Equally, also be provided with in the inside of pot body 31 and prevent the air guide rib 107 that mixes usefulness air-breathing and exhaust, alleviate the burden of fin 102 with this.

(embodiment 8)

Below, using Fig. 1, and Figure 34, Figure 35 describes the structure of lateral parts etc.

As Figure 34, shown in Figure 35, in the side of protective sleeve 85, be provided with and be used for from the side the internally side heat coils 108 of pot 35 heating.During for the part number that reduces it and assembler, this side heat coil 108 is made into such structure, promptly can be attached at it in the L shaped shape groove 110 in the protective sleeve body portion 109.

In the past, be side heat coil 108 to be fixed in the protective sleeve body portion 109 with belt etc.And be the groove 110 of L shaped shape to be set as holder part in the side of protective sleeve body portion 109 here, coil is attached on this holder part is fixed.Adopt such structure, can stablize the position that is provided with of side heat coil, and can improve the performance of cooking, can also deduct the cost that is used in belt simultaneously.

Have again, be provided with corner below pot body according to the shape of interior pot 35.So just improved the free degree in the place that is used for placing pot body.

Have, compare with electric cooker in the past, electric cooker of the present invention does one's utmost to prevent at interior pot 35 to the space arrangement component between the outside, pot body 31 the place aheads.This has just dwindled interior pot 35 to the distance between the outside, electric cooker the place ahead, and the user just is more convenient for when filling a bowl with rice etc.In addition, it is top also low to do the height of pot body 31 previous sections than interior pot 35, and this has just further improved the ease of use when filling a bowl with rice.

(embodiment 9)

Use Figure 36～Figure 39 that the 9th embodiment of the present invention described below.Shown in the block diagram of Figure 39, in pot 131, put into Mi Heshui, the heater 133 that the heater coil that is driven by converter 132 constitutes heats.Pot sensor 134 is the temperature that are used for detecting pot 131 bottoms, and cover sensor 135 is the temperature that are used for detecting the lid of electric cooking-vessel subdivision.Have, cover open/close checking apparatus 136 is to be used for detecting the open and-shut mode that covers the lid on pot 131 again.

Control device 137 is made of following three parts: the output signal of pot sensor 134 and the output signal of cover sensor 135 are advanced in (1) input, judge the rice amount and the water yield in the pot 131, and promptly the amount of cooking of the amount of cooking judgment means 138; (2) decide the thermal output that adds of heater according to the output of this amount of cooking judgment means 138, import the output signal of pot sensor 134 and output signal, the basis program of cooking of cover sensor 135 and come control change device 132 and then control to give the thermal output that adds of heater, also the control device 141 of cooking of output signal in the device for informing 140 of the indication device 139 of expression electric cooker duty and the unusual grade of reporting electric cooker; (3) the cook memory storage 142 of program of memory.Operating means 143 is to be used for selecting to remember the program of cooking in memory storage 142 or to be used in memory storage 142 signal that output begins to cook.

The object lesson of this electric cooker such as Figure 37～shown in Figure 39, in Figure 37,144 is the electric cooker pot body of top opening, accommodating in this pot body 144 inside be used for packing into rice and water and can freely load and unload pots 131.Be provided with heater 133 that constitutes by the heater coil of giving pot 131 heating and the inverter circuit board 145 of loading the converter 132 that drives heater in the inside of this pot body 144.Be provided with the pot sensor 134 of the temperature that detects pot 131 at the middle body of this heater.But 146 for covering on electric cooker pot body 144 on the opening portion and the lid of freely openable, and this lid 146 is bearing in by rotating shaft 149 and make on the hinge member 148 of an integral body on 147 the top of putting on the shelf, and free to rotate around rotating shaft 149.

On lid 146, fixed heat sink 150, be adjacent to this heat sink 150 cover sensor 135 that is used for detecting the temperature in the pot 131 has been installed.In addition, be provided with control circuit board 151 in the inside of lid 146.On this control circuit board 151, loaded as the micro computer 152 of control device with as the LCD153 of indication device with as the buzzer 154 and the operating means 143 of device for informing, etc.Have again, also be provided with the cover open/close checking apparatus 136 that constitutes by float 156 and float test section 157 in the lid 146.

Constitute following three parts by micro computer 152: the output signal of (1) input pot sensor 134 and the output signal of cover sensor 135, judge rice amount and the water yield, the i.e. used amount of the cooking judgment means 138 of the amount of cooking in the pot 131; (2) decide the thermal output that adds of heater according to the output of this amount of cooking judgment means 138, the output signal of input pot sensor 134 and the output signal of cover sensor 135, detect converter 132 and then control the thermal output that adds of giving heater according to the program of cooking, also the control device 141 of cooking of output signal in the buzzer 154 of the LCD153 of expression electric cooker duty and the unusual grade of reporting electric cooker; (3) the cook memory storage 142 of program of memory.Operating means 143 is the programs of cooking in the memory storage 142 that is used for selecting to remember in micro computer 152 and is used for the signal that begins to cook to micro computer 152 outputs.

Figure 38 is a schematic side elevational before the lid of seeing above the lid 146 of the electric cooker of present embodiment.From then on figure is provided with in upper surface the place ahead of lid 146 as can be seen: indication device LCD153 is used for representing freshness, cooking function, and the open and-shut mode of lid etc. of present moment, selecteed insulating process, rice; The button 158 of cooking that begins to cook with indication as operating means 143; With the predetermined key 159 of being scheduled to Mi Jinhang cook; With the insulation button 160 that is used for beginning to be incubated; Be used for cancelling the cancellation button 161 of cooking or being incubated; With the insulating process selection key 162 that is used for selecting holding temperature; Rice freshness button 163 with the best program of cooking of state selection that contrasts rice; Select the cooking function of cooking function to select ammonium key 164 with being used for; With hour button 165 of the expression time that is used for changing LCD153 and divide button 166.

Figure 39 is the enlarged drawing of cover open/close checking apparatus 136.Float 156 is spherical magnetic, and float test section 157 is the reed switch that come make and break contact with the magnetic of float 156.Float 156 is placed on the groove 167 of inclination, and float 156 is shifted to float test section 157 1 sides when lid 146 is in closed condition, otherwise float 156 is just shifted to a side opposite with test section 157 when state that lid 146 is in out.Because moving of this float 156, the magnetic field that float test section 157 is applied changes.The contact of float test section 157 produces switch motion, so just can detect the open and-shut mode of lid.

Action to said structure describes below.When the output signal of the state that lid 146 is in out as the float test section 157 of cover open/close checking apparatus 136 is imported into micro computer 152, even input is not accepted them from the signal micro computer of following button yet, thereby does not change the duty of electric cooker.These buttons are the buttons 158 of cooking as lid 146 upper surface operating means 143, predetermined key 159, insulation button 160, cancellation button 161, insulating process selection key 162, rice freshness button 163, with function selection key 164 and hour button 165 and branch button 166.

As adopt the method for present embodiment, then will adorn pots 131 of rice and water when uncap 146 puts in pot body 144, then during close cap 146, certainly must press upper surface the place ahead part of this lid 146, even do not accept this indication but supress button 158 micro computers 152 of cooking accidentally this moment, so do not begin the work of cooking yet.So, even be provided with operating means 143, and when close cap 146, supress operating means 143 accidentally in lid 146 upper surface the place aheads, also can prevent misoperation.

(embodiment 10)

Use Figure 36～Figure 39 that the 10th embodiment of the present invention described below.Because its formation is identical with embodiment 9, so only action is described.When the output signal of the state that lid 146 is in out as the float test section 157 of cover open/close checking apparatus 136 is imported in the micro computer 152, even exported signal from the button 158 of cooking as the operating means 143 of lid 146 upper surfaces, micro computer 152 is not accepted this signal yet thereby is not changed the duty of electric cooker.

As adopt the method for present embodiment, when uncap 146 will adorned pots 131 of rice and water and put in pot body 144 then close cap 146 into, certainly must press upper surface the place ahead part of this lid 146, even but supress the key 158 of cooking this moment accidentally, micro computer 152 is not accepted this indication yet, so do not begin the work of cooking.So, even be provided with the button 158 of cooking, and when close cap 146, supress the button 158 of cooking accidentally in lid 146 upper surface the place aheads, also can prevent misoperation.And at this moment can be by the indication that is subjected to other buttons.Uncap 146 in the insulating process of meal for example takes out from pot body 144 after the pot 131, when wanting to cancel insulation, even the state of opening at lid 146 is pressed cancellation button 161, also can cancel keeping warm mode.Have again,, also can cancel the state of cooking or keeping warm mode, so can stop to heater 133 power supplies with cancellation button 161 just in case fault has taken place at the cover open/close checking apparatus midway 136 of cooking or be incubated.

(embodiment 11)

Use Figure 36～Figure 39 that the 11st embodiment of the present invention described below.Because its formation is identical with embodiment 9, so only action is described.When the output signal of the state that lid 146 is in out as the float test section 157 of cover open/close checking apparatus 136 is imported into micro computer 152, the state that micro computer 152 is in out with expression lid 146 to the LCD153 output signal, even input is from the signal of following button simultaneously, micro computer is not accepted them yet, thereby does not change the duty of electric cooker.These buttons are: as the button 158 of cooking of the operating means 143 of lid 146 upper surfaces, and predetermined key 159, insulation button 160, cancellation button 161, insulating process selection key 162, rice freshness button 163, function selection key 164 and hour button 165 and branch button 166.

As adopt the method for present embodiment, when uncap 146 will adorned pots 131 of rice and water and put in pot body 144 then close cap 146 into, certainly must press upper surface the place ahead part of this lid 146, even but supress the button 158 of cooking this moment accidentally, micro computer 152 is not accepted this indication yet, so do not begin the work of cooking.So, even be provided with operating means 143, and when close cap 146, supress operating means 143 accidentally in lid 146 upper surface the place aheads, also can prevent misoperation.Have again, during the button of the state push part of opening at lid 146,, also can not think it is that fault has taken place by mistake even key command is not accepted because the expression of LCD153 is arranged.And can know that on the contrary fault has taken place cover open/close checking apparatus 136.

(embodiment 12)

Use Figure 36～Figure 39 that the 12nd embodiment of the present invention described below.Because its formation is identical with embodiment 9, so only action is described.When the output signal of the state that lid 146 is in out as the float test section 157 of cover open/close checking apparatus 136 is imported into micro computer 152, even input is from the signal of following button, micro computer is not accepted them yet, thereby does not change the duty of electric cooker; And to as buzzer 154 output signals of device for informing 140 so that its action.These buttons are: as the button 158 of cooking of lid 146 upper surface operating means 143, and predetermined key 159, insulation button 160, cancellation button 161, insulating process selection key 162, rice freshness button 163, function selection key 164 and hour button 165 and branch button 166.

As adopt the method for present embodiment, when uncap 146 will adorned pots 131 of rice and water and put in pot body 144 then close cap 146 into, certainly must press upper surface the place ahead part of this lid 146, even but supress the button 158 of cooking this moment accidentally, micro computer 152 is not accepted this indication yet, so do not begin the work of cooking.So, even be provided with operating means 143 in lid 146 upper surface the place aheads, and when close cap 146, supress operating means 143 accidentally, also can prevent maloperation, and can be under the state of uncap 146 during the key of push part, the not received situation of key command is reported the user.

(embodiment 13)

Use Figure 36～Figure 39 that the 13rd embodiment of the present invention described below.Because its formation is identical with embodiment 9, so only action is described.When as the float test section 157 of cover open/close checking apparatus 136 with lid 146 with when the output signal of the state of opening is imported into micro computer 152, convert expression lid 146 in output signal and be in the time in about 1 second after the output signal of closing state, micro computer is not accepted from the signal of following button thereby is not changed the duty of electric cooker.These buttons are: as the button 158 of cooking of lid 146 upper surface operating means 143, and predetermined key 159, insulation button 160, cancellation button 161, insulating process selection key 162, rice freshness button 163, function selection key 164 and hour button 165 and branch button 166.

Though float 156 moves on groove 167 when opening and closing lid 146, but the situation of float test section 157 1 sides can take place just to move to before lid 146 is closed: perhaps because the accuracy of detection of float test section 157 is limited, lid 146 can takes place do not close the situation that just output is in the signal of closed condition fully.Even in these cases as adopting the method for present embodiment, when uncap 146 will adorned pots 131 of rice and water and put in pot body 144 then close cap 146 into, certainly must press upper surface the place ahead part of this lid 146, even but supress the button 158 of cooking this moment accidentally, micro computer 152 can not accepted this maloperation indication yet, so do not begin the work of cooking.So, even be provided with operating means 143, and when close cap 146, supress operating means 143 accidentally in lid 146 upper surface the place aheads, also can prevent misoperation conscientiously.

(embodiment 14)

Use Figure 36～Figure 39 that the 14th embodiment of the present invention described below.Because its formation is identical with embodiment 9, describe so oppose action.When the output signal of being used as the state that lid 146 is in out with the float test section 157 of cover open/close checking apparatus 136 is imported into micro computer 152, even exported signal from the button 158 of cooking as the operating means above the lid 146 143, micro computer 152 is not accepted this signal yet.Thereby do not change the duty of electric cooker.Even but under this state, in the output signal of continuous 3 buttons 158 of will the cooking input micro computer 152, micro computer 152 will be accepted this signal and begin to cook in 3 seconds.

As adopt the method for present embodiment, when uncap 146 will adorned pots 131 of rice and water and put in pot body 144 then close cap 146 into, certainly must press top the place ahead part of this lid 146, even but supress the button 158 of cooking this moment accidentally, if only by next time, then micro computer 152 can not accepted this indication so do not begin the work of cooking yet.So, even the place ahead is provided with the button 158 of cooking on lid 146, and when close cap 146, supress the button 158 of cooking accidentally, also can prevent misoperation.And, even fault has taken place cover open/close checking apparatus 136, also can press the button 158 of cooking and make it normally begin the work of cooking by continuous 3 times.

(embodiment 15)

Use Figure 36～Figure 40 that the 15th embodiment of the present invention described below.Because its structure is identical with embodiment 9, so use Figure 40 that action is described.The temperature that program of cooking that shown in Figure 40 is when cooking with the electric cooker of embodiments of the invention and pot sensor 134 and cover sensor 135 are detected.Solid line among the figure is the detected temperatures of pot sensor 134, and dotted line is the temperature that cover sensor 135 is detected.In the amount of cooking is judged stroke, service time T ₁Judge the amount of cooking in the pot 131.T ₁Be that detected temperatures from pot sensor 134 reaches both fixed temperature θ 2 and both reaches institute's elapsed time till the fixed temperature θ 3 to the detected temperatures of cover sensor 135.After this regulate according to the amount of cooking and add thermal output and keep stroke, when the detected temperatures of pot sensor 134 both reaches fixed temperature θ 4, just enter the stroke of cooking rice over a slow fire to advance boiling.

In case judge uncap 146 in the stroke in the above-mentioned amount of cooking here, cover sensor 135 just can not detect the normal temperatures that take the dish out of the pot in 131, so detected temperatures both reaches the 3 needed times of fixed temperature θ with regard to director.The amount of cooking so just can not judge rightly.For this reason, the amount of cooking when cooking work judges in the stroke when output signal of the state that lid 146 is in out as the float test section 157 of cover open/close checking apparatus 136 is imported into micro computer 152, micro computer 152 just to as buzzer 154 output signals of device for informing 140 so that its move.

So adopt the method for present embodiment, when the amount of cooking of the work of cooking is judged the situation that takes place in the stroke lid 146 is opened, use buzzer 154 just can report out the amount of cooking judgement normally.So just can judge and burn good to eat meal by the correct amount of cooking.

(embodiment 16)

With reference to Figure 41, Figure 42 describes the 16th embodiment of the present invention below.

In addition, in following all embodiment,, can set arbitrarily and implement as cited time of object lesson, temperature, stroke.

In Figure 41, the 201st, put into the pot that gratin is used, the 202nd, be used for the heater of heating kettle 201, the 203rd, be used for the meal thin rice gruel checkout gear of meal thin rice gruel of tracer liquid and solid, the 204th, control the heating control apparatus of heater 202 according to the testing result of meal thin rice gruel detection means 203.

Action to electric cooker with said structure describes below.Use heater 202 to begin to be accompanied by heating after the heating, gratin in the pot 201 or water just rise.They are just detected by meal thin rice gruel checkout gear 203 when rising to certain position.So heating control apparatus 204 is just by changing the generation that heat suppresses to overflow that adds of heater 202.

(embodiment 17)

Below the 17th embodiment described.

This is to describing with the action of the electric cooker of spline structure with the 16th embodiment.Shown in Figure 42 (a) is the relation of the action of the testing result of meal thin rice gruel checkout gear 203 and heater 202.Heating control apparatus 204 just stops the work of heater 202 when detecting the rising of meal thin rice gruel by meal thin rice gruel checkout gear 203, and just adds heat when detecting meal thin rice gruel and descend.

(embodiment 18)

Below the 18th embodiment described.

This is and the electric cooker of the 16th embodiment with spline structure, only action is described.Shown in Figure 42 (b) is the relation of the action of the testing result of meal thin rice gruel checkout gear 203 and heater 202.Heating control apparatus 204 just stops the work of heater 202 when detecting the rising of meal thin rice gruel by meal thin rice gruel checkout gear 203, and when detecting meal thin rice gruel and descend, adds heat through after the wait of several seconds.

(embodiment 19)

Below the 19th embodiment described.

205 is the abnormal detectors that detect meal thin rice gruel checkout gear 203 unusual usefulness in Figure 41.In addition, be common part with the identical person of symbol of the 16th embodiment, omitted explanation here.

Action to electric cooker with said structure describes below.When abnormal detector 205 detected meal thin rice gruel checkout gear 203 unusual, 204 pairs of heaters 202 of heating control apparatus were controlled.Under the condition that can keep the performance of cooking, add the generation that heat suppresses to overflow by such minimizing the shown in Figure 42 (c).

(embodiment 20)

Below the 20th embodiment described.

This is and the electric cooker of the 19th embodiment with spline structure, only action is described.If abnormal detector 205 has detected the unusual of meal thin rice gruel checkout gear 203, then heating control apparatus 204 just ends to cook action when cooking the action beginning.

(embodiment 21)

Below the 21st embodiment described.

In Figure 41, the 206th, the signal input apparatus that heating control apparatus 204 is carried out the signal input.In addition, be common part with the identical person of symbol of the 16th embodiment or the 19th embodiment, in this description will be omitted.

Action to electric cooker with said structure describes below.When abnormal detector 205 detected meal thin rice gruel checkout gear 203 unusual, it was invalid when having imported signal by signal input apparatus 206 first time this signal input to be judged to; Only as second time signal input the time just change the duty of electric cooker.

In addition, be not only second time, can also select equally as most arbitrarily the letter in reply just change the duty of electric cooker during number input.

(embodiment 22)

Below the 22nd embodiment described.

This is and the electric cooker of the 21st embodiment with spline structure, only action is described.When abnormal detector 205 detected meal thin rice gruel checkout gear 203 unusual, when having imported signal by signal input apparatus 206 first time, it is invalid that this signal input is judged to, and from then on pick up counting.When in 10 seconds, having finished the signal input of set time number, just this signal input is considered as effectively and changes the duty of electric cooker.Also do not finish all signals inputs before just with this of signal when input in 10 seconds and all be considered as invalidly having passed through, and will signal input next time be used as first time input and carry out same action.

In addition, be not limited to adopt from first be back to the time till the number set time, and can be from returning the number beginning arbitrarily or finishing timing.And reach the set timing number of times that returns till the number and be not limited to once.

(embodiment 23)

Below the 23rd embodiment described.

This is and the electric cooker of the 19th embodiment with spline structure, only action is described.When meal thin rice gruel checkout gear 203 detected the rising of the thin rice gruel that rises well with cooking, the continuous rise time of 205 pairs of meal thin rice gruels of abnormal detector measured.Usually the continuous rise time of meal thin rice gruel is 5 seconds to 10 seconds, just meal thin rice gruel checkout gear 203 is judged to unusually when thin rice gruel continuous rising the in 30 seconds risen well with cooking in detection.At this moment 204 pairs of heaters 202 of heating control apparatus are controlled, and add the generation that heat suppresses to overflow by such minimizing the shown in Figure 42 (c) under the condition that can keep the performance of cooking.

(embodiment 24)

Below the 24th embodiment described.

This is and the electric cooker of the 16th embodiment with spline structure, only action is described.Only in electric cooker the temperature in the bottom of a pan be 90 degree to the scopes of 110 degree, heating control apparatus 204 reduces the heat that adds that heaters 202 provide when meal thin rice gruel checkout gear 203 detects the rising of the thin rice gruel that rises well with cooking.Do not add heat and when other temperature range, do not change according to the testing result of meal thin rice gruel checkout gear 203.

In addition, above-mentioned action can be undertaken by the temperature of any part in the electric cooker.

(embodiment 25)

Below the 25th embodiment described.

This is and the electric cooker of the 16th embodiment with spline structure, only action is described.Be more than 10 minutes in the scope below 50 minutes in the time of cooking only, heating control apparatus 204 reduces the heat that adds that heaters 202 provide when meal thin rice gruel checkout gear 203 detects the rising of the thin rice gruel that rises well with cooking.Add heat and change in other the testing result according to meal thin rice gruel checkout gear 203 of cooking during time range not.

(embodiment 26)

Below the 26th embodiment described.

This is and the electric cooker of the 16th embodiment with spline structure, only action is described.Only be boiling when keeping stroke when the stroke of cooking, heating control apparatus 204 reduces the heat that adds that heaters 202 provide when meal thin rice gruel checkout gear 203 detects the rising of the thin rice gruel that rises well with cooking.Add heat and change in other the testing result according to meal thin rice gruel checkout gear 203 of cooking during stroke not.

In addition, above-mentioned action can be carried out in a plurality of strokes.

(embodiment 27)

Below the 27th embodiment described.

207 for representing or report the indication device of electric cooker duty in Figure 41, and 208 are the expression control device of control table showing device 207.In addition, be common part with the identical person of symbol of the 16th embodiment or the 17th embodiment, omitted explanation at this.

Action to electric cooker with said structure describes below.When meal thin rice gruel checkout gear 203 was detecting, expression control device 208 represented whether to have the rising of meal thin rice gruel by indication device 207.And when detecting the rising of the thin rice gruel that rises well with cooking, report by the sound of buzzer.In addition, can also only a part of state of electric cooker be represented or report; As under which kind of state of meal thin rice gruel checkout gear 203, representing and reporting, be not limited to above-mentioned situation, but can consider state arbitrarily.In addition, the thin rice gruel checkout gear 203 of not having a meal, and also can carry out same action with abnormal detector 205.

Apparent from the above description, the technological invention of first kind of scheme of the present invention possesses and is put The interior pot that can freely load and unload in the pot body covers lid and the meal thin rice gruel of face opening portion with it pot Checkout gear so just can prevent from overflowing, and make the miniaturization of pot body become possibility, its placement Improve significantly with the convenient function that moves.

The invention of the technology of first scheme is that meal thin rice gruel checkout gear is arranged on the lid. Like this Just can be arranged on it such as in the steam drum, steam drum is pulled down and is loaded onto from lid easily. Clearly It is easy to wash also transfiguration, so can make meal thin rice gruel checkout gear cleaning.

The technological invention of the third scheme is the path that meal thin rice gruel checkout gear is arranged on meal thin rice gruel On, for example be arranged on interior pot top. So just can provide and be convenient to safeguard electricity easy to use Pot for cooking rice.

The technological invention of the four, the five kind of scheme is to give before meal thin rice gruel checkout gear is made action Interior pot supply capability, and after the danger in the past that meal thin rice gruel flows out, again supply with electricity outside container Power. When cooking, just can heat fully rice and water like this, can make good to eat meal, Namely what is called can be improved the taste of meal.

The technological invention of the 6th kind of scheme is to possess: above-mentioned pot body, interior pot and lid are used for responding to The bottom-heated coil of pot in the heating, control is to the control dress of bottom-heated coil supply high frequency electric power Put, be used for discharging and occur in the water vapour in the interior pot and be arranged on steam drum on the lid, be arranged on Interior and the transportable meal thin rice gruel checkout gear of steam drum; Control device is according to meal thin rice gruel checkout gear The state that detects is controlled the electric power quantity delivered to heater coil. So just can use small-sized Steam drum prevents that effectively meal thin rice gruel from overflowing.

The technological invention of the 7th kind of scheme is to utilize moving of float and the above-mentioned meal thin rice gruel made detects Device. When lid switch and the meal thin rice gruel that produces in the interior pot expands or when shrinking this float just mobile. Detect the situation of the thin rice gruel that rises well with cooking with regard to the enough simple structures of energy with this detector.

The technological invention of the 8th kind of scheme is to have done an inclined-plane in the bottom of above-mentioned steam drum, and above-mentioned float is to make with magnetic materials such as ferrite that can free rolling is cylindrical or spherical on the inclined-plane; The float test section is made of the tongue contact-making switch.So just can make the float structure be suitable for detecting meal thin rice gruel.

The technological invention of the 9th kind of scheme is the trench portions that is provided with the mobile usefulness of meal thin rice gruel on above-mentioned inclined-plane, is provided with on above-mentioned float to making it move the ledge of usefulness along groove simultaneously.So just can make the structure that when meal thin rice gruel adverse current etc. takes place, also can be suitable for.

The technological invention of the tenth kind of scheme is that the Weight control with above-mentioned float moves not being subjected to vapor action and because of the degree of meal thin rice gruel through moving.So just can distinguish meal thin rice gruel and steam infalliblely.

The technological invention of the 11 kind of scheme is to possess above-mentioned heater coil and control device, and is used for sending to control device and selects which kind of cook operation part of instruction of function; And make in the given time scope of control device after closing upper cover and forbid from the operation part input operation signal.Misoperation in the time of so just preventing lid switch infalliblely.

The technological invention of the 12 kind of scheme is the top forward part that the high input switch of usage frequency is arranged on lid.Maloperation in the time of so just can more effectively avoiding close cap.

The technological invention of the 13 kind of scheme is to possess above-mentioned pot of body, inner pot cover, and the heater of pot in being used for heating, the control device of heater electric power is supplied with in control, and is arranged on the meal thin rice gruel checkout gear on the approach that leads in the interior pot; And make control device control electric power quantity delivered to heater according to the detected state of meal thin rice gruel checkout gear.So just can prevent that effectively meal thin rice gruel from overflowing by enough same small-sized lids.

The 14, the technological invention of the 15 kind of scheme is to assign to constitute above-mentioned meal thin rice gruel checkout gear with float and float test section; And moving at float to making 5～15 inclined-planes of spending in the mobile place of the following float of situation that rolls.Float just can roll because of the effect of meal thin rice gruel when the meal thin rice gruel that produces in the interior pot expands or shrinks like this.

The technological invention of the 16 kind of scheme is that the rolling road of above-mentioned float is located in the roughly tubular steam passage in the steam drum on the lid, and the profile of float be a circle; On the inner surface up and down of steam passage, slot, and make float not contact the side of steam passage; The gap of steam passage and float is bigger above float, is provided with its exhaust outlet on the side of steam passage and bottom surface; When the weight of float is 2～4g, the sectional area in the space of steam passage and float is made about 60～90mm ²So just can float because of moving but, vapor action not moved because of meal thin rice gruel process with simple structure.Meal thin rice gruel and steam are distinguished infalliblely; And can prevent that the surface tension etc. between float and steam passage side from causing the float heavy, and float is rolled easily, keep moving smooth.

The technological invention of the 17 kind of scheme is that above-mentioned steam drum can freely be loaded and unloaded from lid.So just can carry out young bird to the steam passage as float slip place simply protects.

The technological invention of the 18 kind of scheme is to make above-mentioned float with the magnetic material that surface coverage the rubber elastomeric material.Impact in the time of so just can reducing float and move prevents that float from splitting or damaged, and can reduce the sound that sends when mobile.

The technological invention of the 19 kind of scheme is in the bottom surface of above-mentioned steam drum sloping portion to be set, and makes the below of sloping portion be higher than the position of the upper oral part of steam passage.So just there is no need to be provided with the return valve of meal thin rice gruel, just can make this part-structure simple in the bottom surface of steam drum.

The technological invention of the 20 kind of scheme is to make above-mentioned lid have near the steam drum of being positioned at and be positioned at pot body front one side, by the float test section that the tongue contact-making switch constitutes, makes above-mentioned steam passage downward-sloping towards the float test section on one side; Having done convex shoulder at the steam drum rear partly makes steam drum be installed to toward the direction on the lid; Possess to be used for specifying to the control device of heater supply capability and select which kind of cook operation part of function; And make operation part under the situation that steam drum is not contained on the lid and lid is being opened, forbid input operation signal.So just can when having steam drum to reach with the lid off, not prevent misoperation infalliblely.

The 21, whether the technological invention of the 22 kind of scheme is to make above-mentioned float test section detect float on above-mentioned float has moved about 1/3 position of the displacement in the steam passage to move.Even few etc., also can meal thin rice gruel be detected under the small and weak situation of meal thin rice gruel ascendant trend in the amount of cooking infalliblely.

The technological invention of the 23 kind of scheme is making the shape that roughly is the Eight characters along steam drum as the tongue contact-making switch of above-mentioned float test section.So just can improve the detection accuracy of float test section.

The technological invention of the 24 kind of scheme is that the steam port of above-mentioned steam drum end face is made towards oblique upper and towards the posterior direction of pot body, with steam towards pot after one's death the face direction discharge.So just can prevent that steam dewfall and spittle on the operation part that is positioned at the lid previous section from dripping on the operation part.

The technological invention of the 25 kind of scheme is, is being made in pot after one's death on the electric cooker of side's one side being used for hinge fraction in conjunction with above-mentioned pot body and lid, and steam port is made in pot body the place ahead one side on the steam drum.When lid is opened, just can prevent that the water droplet of dewfall drops onto outside the steam drum in steam drum like this.

The technological invention of the 26 kind of scheme is that the interval is arranged in three places, pot body (120 ° at interval) equably; the cap of putting on the shelf of pot in being used for supporting; be arranged in three places, circle middle part (120 ° at interval) in the protective sleeve equably with the interval; be used for alternately lining up, balancedly give interior pot location to rubber that pot rotates 60 degree that stagger mutually that prevent of interior pot location.The installation site deviation of pot in the pot body in so just reducing.

The technological invention of the 27 kind of scheme possesses above-mentioned pot body, lid and interior pot, be used for heating the heater of interior pot, give the control device of heater supply capability, and can be used for specifying the operation part of cooking and beginning and specifying which kind of cooking function of selection at least; Forbid from the operation part input operation signal when detecting with the lid off timed unit.Even state of opening at lid or the user button of just supressing operation part in close cap accidentally also can prevent maloperation like this.

The technological invention of the 28 kind of scheme is that above-mentioned control device forbids importing the indication of beginning of cooking when detecting the state that lid opening.Even state of opening at lid or user are just supressing the beginning key of cooking accidentally and also can prevent maloperation in close cap like this.Moreover, though the state of opening at lid also can cancel insulation or carry out function and select.

The technological invention of the 29 kind of scheme is the indication device that the functional state that is used for representing cooking etc. is set, and expresses the open and-shut mode of lid.The user just can know what kind of judgement control device has made to the open and-shut mode of lid like this.

The technological invention of the 30 kind of scheme is that above-mentioned control device is with these situation reports user when the state that lid is being opened has occurred using the situation of operation part input operation signal.Even state of opening at lid or the user button of just supressing operation part in close cap accidentally also can prevent maloperation like this.And when state is with the lid off supressed the button of operation part, button can not accepted to operate this situation and tell the user.

Even if the technological invention of the 31 kind of scheme is also can also be forbidden from the operation part input operation signal by above-mentioned control device in certain section set after having closed lid.Misoperation in the time of so just can preventing close cap infalliblely.

The technological invention of the 32 kind of scheme is, in case imported certain specific operation signal by operation part, even above-mentioned control device also allows by the operation part input operation signal under the situation that lid is being opened.Even the lid open-close checkout gear is out of order and also can normally carries out button operation like this.

The technological invention of the 33 kind of scheme is that above-mentioned detection device is given the user with such situation report when detecting with the lid off state in the given time of the specific stroke of electric cooker work.So just can prevent owing to lid in the process of cooking is opened and can not carries out the problem that the best is cooked.

The technological invention of the 34 kind of scheme is such electric cooker, and it possesses interior pot, and the control device of heater, control heating detects the meal thin rice gruel checkout gear that liquid and solid exceed the situation of interior pot upper end; And make control device change the heat that adds of heater according to the detected state of meal thin rice gruel checkout gear.When detect meal thin rice gruel ascending amount exceed in when pot, can prevent the further increase of meal thin rice gruel amount and overflow.

The technological invention of the 35 kind of scheme is such electric cooker, is stopped to heat with heater by above-mentioned control device when meal thin rice gruel checkout gear is detecting the rising of meal thin rice gruel.Like this owing to be synchronously to carry out whether, so can enough simple methods control with the rising of meal thin rice gruel with the heater heating.

The technological invention of the 36 kind of scheme is such electric cooker, makes above-mentioned control device stop to heat with heater in the certain hour after the rising that meal thin rice gruel checkout gear detects meal thin rice gruel has finished.Can make meal thin rice gruel get back to interior pot in like this during not taking place immediately that new meal thin rice gruel rises infalliblely.

The technological invention of the 37 kind of scheme is such electric cooker, and it possesses the abnormal detector that detects the unusual usefulness of above-mentioned meal thin rice gruel checkout gear; The heat that adds that unusual timed unit will change heater takes place when abnormal detector detects the thin rice gruel checkout gear that rises well with cooking.Even meal thin rice gruel checkout gear has taken place also not take place unusually extremely to reduce and added heat and cause situation that the performance of cooking descends or the situation of overflowing like this, can normally finish the process of cooking.

The technological invention of the 38 kind of scheme is such electric cooker, and especially when above-mentioned abnormal detector detected the thin rice gruel checkout gear that rises well with cooking unusual, control device did not allow to begin the work of cooking.Cook and to make meal thin rice gruel checkout gear be in normal condition when heating.So just can prevent from not notice the following situation that meal thin rice gruel checkout gear is unusual and take place: the one, when meal thin rice gruel does not rise, reduce and add heat and cause that the performance of cooking descends, the 2nd, meal thin rice gruel rises to settle and fails to detect and cause overflowing.

The technological invention of the 39 kind of scheme is such electric cooker, especially possesses the input unit to control device input instruction; When abnormal detector has been found meal thin rice gruel checkout gear unusual, import the state that instruction can make control device change electric cooker for several times.Just can allow the user begin to allow electric cooker work under the unusual prerequisite of meal thin rice gruel checkout gear recognizing by the change of input instruction for several times state like this.

The technological invention of the 40 kind of scheme is such electric cooker, especially the instruction that above-mentioned control device will have been imported when not input is not instructed for several times in the certain hour scope be judged to invalid.Only the instruction of importing in the certain hour scope is just effective.Like this, can prevent from when having passed through after the long period input instruction, to change the state of electric cooker with the once command input.

The technological invention of the 41 kind of scheme is such electric cooker, and especially above-mentioned abnormal detector will be judged to it unusually when meal thin rice gruel checkout gear is surpassing the certain hour scope and continues to find that meal thin rice gruel rises.So just other testing agency needn't be used, just this function can be realized easily with above-mentioned abnormal detector.

The technological invention of the 42 kind of scheme is such electric cooker, and in the time of especially in the temperature in the electric cooker is in certain set scope, above-mentioned control device is ignored the result that meal thin rice gruel checkout gear obtains and heater is controlled.Only when the temperature that might overflow, just regulate, so just can prevent from need not to regulate the temperature range that adds heat, to survey the heating quantitative changeization that causes by flase drop to adding heat.

The technological invention of the 43 kind of scheme is such electric cooker, and when especially the time that ought cook was in certain set scope, control device was ignored the result that meal thin rice gruel checkout gear obtains and heater is controlled.In the time that can not overflow, do not follow meal thin rice gruel checkout gear and regulate and to add heat, so just can prevent the heating quantitative changeization that when need not to regulate, causes by the flase drop survey.

The technological invention of the 44 kind of scheme is such electric cooker, and especially control device is ignored the result that meal thin rice gruel checkout gear obtains and heater is controlled in certain set stroke of cooking.Just can prevent from the stroke of cooking that adds heat to survey the heating quantitative changeization cause for preventing to overflow to change need not like this by flase drop.

The technological invention of the 45 kind of scheme is such electric cooker, and especially it possesses expression or reports the indication device of electric cooker duty and the expression control device of control table showing device; Above-mentioned expression control device is changed the action of indication device according to the detected state of at least one side in meal thin rice gruel checkout gear or the abnormal detector.So just can express detected state and give the user action report.

Claims (7)

1. electric cooker, comprise: cover lid in electric cooker pot body, be used for heater to the pot heating that is housed in the above-mentioned electric cooker pot body and can freely load and unload, to the control device of above-mentioned heater supply capability and can be used for specifying the operation part of beginning and which kind of cooking function of appointment selection of cooking at least; Above-mentioned control device is forbidden partly importing the above-mentioned indication at least one from aforesaid operations when detecting with the lid off.

2. the electric cooker put down in writing of claim 1 is characterized in that forbidding importing the indication of beginning of cooking when detecting state timed unit that lid opening.

3. claim 1 or 2 electric cookers of being put down in writing is characterized in that possessing and are used for representing cooking the indication device of function etc.; And above-mentioned indication device is represented the open and-shut mode of lid.

4. claim 1 or 2 electric cookers of being put down in writing is characterized in that the state opened at lid, and operation part has been imported under the situation of operation signal, and control device is reported these situations.

5. the electric cooker put down in writing of any one of claim 1～4 is characterized in that still forbidding from the operation part input operation signal having closed in the stipulated time behind the lid control device.

6. the electric cooker put down in writing of any one of claim 1～5 is characterized in that in case imported specific operation signal by operation part, even above-mentioned control device also allows by aforesaid operations part input operation signal under the situation that lid is being opened.

7. the electric cooker put down in writing of any one of claim 1～6 is characterized in that the state timed unit that the stipulated time detects with the lid off in the specific stroke of electric cooker work reports this situation.

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