CN1215820A - Microwave oven - Google Patents

Abstract

A microwave oven that can heat an article to be cooked uniformly and efficiently. After a cooking room 2 is irradiated with microwave under a state where a rotary net 9 is stopped, the rotary net 9 is rotated by 180 DEG and then the cooking room 2 is irradiated with microwave under a state where the rotary net 9 is stopped. Since a specific part of an article to be cooked does not face an exciting port constantly even if the article is carried on a part of the rotary net 9 where the microwave concentrates, the article is heated efficiently. Since the rotary net 9 has a point symmetric mesh, the mesh is substantially invariant even when the net is rotated by 180 DEG and a constant microwave distribution is kept in the cooking room. So uneven heating of the article due to the influence of the mesh shape can be prevented.

Description

Micro-wave oven

The present invention relates to have the micro-wave oven of placing the gratin rotary body.

Micro-wave oven is subjected to the influence of the position of the excitation mouth of cooking room internal radiation microwave, the standing wave in the cooking room etc., causes the microwave skewness in the cooking room.Thus, be accompanied by and make the rotary body rotation, the standing wave of upsetting in the cooking room distributes, and microwave is shone on the rotary body equably, and the heating that has reduced the gratin on the rotary body is inhomogeneous.

Yet, greater than gratin (being specially about 270mm～330mm), particularly gratin seldom the time, will lower efficiency on the microwave uniform irradiation is spiraled turn whole at the diameter dimension of rotary body.For this reason, considered to place gratin, cooking thing under the rotation halted state of rotary body on the part that in rotary body microwave concentrates.Yet under the situation of this structure, because the privileged site of an excitation mouthful side is easy to concentrating microwaves in the gratin, it is inhomogeneous to produce heating.

The present invention produces in view of above situation, purpose be to provide can be equably the micro-wave oven of cooking thing effectively.

The microwave stove of the 1st scheme has following feature, possesses the cooking room that has the excitation mouth at inwall, the rotary body of the placement gratin that in this cooking room, is provided with, magnetron by above-mentioned excitation mouth irradiating microwaves in above-mentioned cooking room, drive the motor of above-mentioned rotary body, drive the control device of above-mentioned magnetron of control and said motor, above-mentioned rotary body is arranged under the state of rotation " 360 °/N (N is the integer greater than 2) ", with the roughly the same rotation symmetric figure of shape before the rotation, above-mentioned control device sequentially carries out under above-mentioned rotary body rotation halted state the action at above-mentioned cooking room internal radiation microwave, make above-mentioned rotary body with the approximately action of integral multiple unit's rotation of " 360 °/N (N is the integer greater than 2) ", under the rotation halted state of above-mentioned rotary body in the action of above-mentioned cooking room internal radiation microwave.

If according to said apparatus, then because order is carried out under the rotation halted state of rotary body the action at cooking room internal radiation microwave, make above-mentioned rotary body with the approximately action of integral multiple unit's rotation of " 360 °/N ", under the rotation halted state of above-mentioned rotary body in the action of above-mentioned cooking room internal radiation microwave, thus, the privileged site that prevents gratin and excitation are mouthful relative and by heat intensive.And, because even rotary body is with approximately integral multiple unit's rotation of " 360 °/N ", the shape of rotary body does not in fact change before and after rotation yet, and the microwave that prevents to be subjected to the influence of the change of shape of rotary body to change in the cooking room distributes, thus will be equably cooking thing effectively.

The micro-wave oven of the 2nd scheme is characterised in that the angle detection device with the anglec of rotation that detects rotary body, control device make rotary body stop at the action of reference position according to the testing result of angle detection device and make rotary body from the reference position with the roughly action of integral multiple unit's rotation of " 360 °/N ".

If according to said apparatus, then owing to be accompanied by and make rotary body stop at reference position corresponding to gratin, can make the microwave changes in distribution in the cooking room is the form that is suitable for gratin.And, owing to rotary body integral multiple unit's rotation with " 360 °/N " from the said reference position, so can be mouthful not relative and on by the basis of heat intensive with excitation at the specific part of gratin, also owing to keep the microwave in the cooking room to distribute before and after rotation consistently, so gratin plants equably at the microwave branch of the best and is heated effectively.

The micro-wave oven of the 3rd scheme is characterised in that angle detection device is at rotary body output signal of telecommunication during at every turn with the integral multiple unit rotation of roughly " 360 °/N ".

If according to said apparatus, then, locate the needed time so will shorten rotary body owing to when making rotary body stop at the reference position, can reduce the rotation amount of rotary body.

The micro-wave oven of the 4th scheme is characterised in that rotary body constitutes 120 ° of rotation symmetric figures that have with 3 current-carrying parts that roughly equidistantly extend to diametric(al), forms the opening of full-size greater than microwave wavelength " 1/2 " between the circumferencial direction adjacent conductive part.

If according to said apparatus, then 3 current-carrying parts of rotary body distribute the basis that tilts for microwave along the left and right directions fore-and-aft direction in the cooking room on, the microwave ratio of the opening by rotary body changes according to the angle of rotary body.Thus, distribute, so the desirable microwave that is easy to form corresponding to gratin distributes owing to can access multiple abundant microwave.

The micro-wave oven of the 5th scheme is characterised in that it is a plurality of conductions groups that center configuration becomes concentric circles roughly that rotary body has with the axle core, and each conduction group constitutes 120 ° of rotation symmetric figures that have with 3 current-carrying parts that roughly equidistantly extend to diametric(al).

If according to said apparatus, then distributing according to the microwave in the angle cooking room of rotary body, great changes will take place.Thus, because the kind that microwave distributes is abundant, so the microwave that will be easier to obtain corresponding to gratin distributes.

The microwave stove of the 6th scheme has following feature, possesses the cooking room that has the excitation mouth at inwall, the rotary body of the placement gratin that in this cooking room, is provided with, magnetron by above-mentioned excitation mouth irradiating microwaves in above-mentioned cooking room, rotation drives the motor of above-mentioned rotary body, drive the control device of above-mentioned magnetron of control and said motor, it is roughly point-symmetric latticed that above-mentioned rotary body is the axle center of above-mentioned relatively rotary body.Above-mentioned excitation mouth is configured on the part for the axle core off-centre of above-mentioned rotary body, above-mentioned control device carries out under the halted state of above-mentioned rotary body the action at above-mentioned cooking room internal radiation microwave in proper order, make above-mentioned rotary body with roughly 180 ° the action of integral multiple unit rotation, under the halted state of above-mentioned rotary body in the action of above-mentioned cooking room internal radiation microwave.

If according to said apparatus, then because order is carried out under the rotation halted state of rotary body the action at cooking room internal radiation microwave, make rotary body with roughly 180 ° the action of integral multiple unit rotation, under the rotation halted state of rotary body in the action of cooking room internal radiation microwave, so the specific part that will prevent gratin and excitation are mouthful relative by heat intensive.And, even since rotary body in fact do not change with integral multiple unit's rotation net hole shape of 180 ° roughly yet, so constant ground keeps the microwave in the cooking room to distribute before and after rotation, in a word, with cooking thing effectively equably.

The micro-wave oven of the 7th scheme is characterised in that control device chien shih rotary body rotation according to through the only about half of cooking that is set the time.

If according to said apparatus, then because in case through the just rotation of the only about half of cooking time rotary body that is set, thus, the simple control by only driving 1 rotary body just can be equably cooking thing effectively.

The microwave stove of the 8th scheme has following feature, possesses the cooking room that has the excitation mouth at inwall, the rotary body of the placement gratin that in this cooking room, is provided with, magnetron by above-mentioned excitation mouth irradiating microwaves in above-mentioned cooking room, rotation drives the motor of above-mentioned rotary body, drive the control device of above-mentioned magnetron of control and said motor, above-mentioned rotary body constitutes the mesh shape of left-right symmetry roughly and front and back symmetry for the center line of the axle core by above-mentioned rotary body, above-mentioned excitation mouth is configured on the part for the axle core off-centre of above-mentioned rotary body, above-mentioned control device carries out under the halted state of above-mentioned rotary body the action at above-mentioned cooking room internal radiation microwave in proper order, make above-mentioned rotary body with roughly 90 ° the action of integral multiple unit rotation, under the halted state of above-mentioned rotary body in the action of above-mentioned cooking room internal radiation microwave.

If according to said apparatus, then because order is carried out under the rotation halted state of rotary body the action at cooking room internal radiation microwave, make rotary body with roughly 90 ° the action of integral multiple unit rotation, under the rotation halted state of rotary body in the action of cooking room internal radiation microwave, so the specific part that will prevent gratin and excitation are mouthful relative by heat intensive.And because the mesh shape of rotary body does not change before and after rotation, constant ground keeps the microwave in the cooking room to distribute before and after rotation, so with cooking thing effectively equably.

The micro-wave oven of the 9th scheme is characterised in that the excitation mouth is arranged on the sidewall of cooking room.

If according to said apparatus, though when rotary body stops, a specific part mouthful relative with excitation in the gratin is heated especially consumingly, yet, because the rotary body rotation, thus will prevent the influence of excited target mouth on gratin, produces heat inhomogeneous.

The micro-wave oven of the 10th scheme is characterised in that to have the gas-detecting device of detection from the gas flow of gratin generation, and control device reaches a reference value according to the output signal from gas-detecting device makes the rotary body rotation.

If according to said apparatus, then in case the gas flow that produces from gratin reaches the just rotation of a reference value rotary body.Thus, even under the situation that does not preestablish the cooking time,, make that the various piece of gratin is relative with the excitation mouth with the roughly the same time, so it is inhomogeneous to reduce heating owing to can make the rotary body rotation.

The micro-wave oven of the 11st scheme is characterised in that to have the temperature-detecting device that detects the gratin temperature, and control device reaches a reference value according to the output signal from temperature-detecting device makes the rotary body rotation.

If according to said apparatus, in case then the temperature of gratin reaches the just rotation of a reference value rotary body.Thus, even under the situation that does not preestablish the cooking time,, make that the various piece of gratin is relative with the excitation mouth with the roughly the same time, so it is inhomogeneous to reduce heating owing to can make the rotary body rotation.

The micro-wave oven of the 12nd scheme is characterised in that control device changes a reference value according to gratin.

If according to said apparatus, even then under situation, owing to can make the rotary body rotation, make that the various piece of gratin is mouthful relative with roughly the same time and excitation corresponding to gratin cooking asynchronism(-nization), so will reduce heat inhomogeneous.

The micro-wave oven of the 13rd scheme is characterised in that control device makes the rotary body rotation after each process scheduled time.

If according to said apparatus, even then under the situation of change cooking time, owing to rotate through rotary body after the scheduled time each, therefore microwave is shone on the gratin more equably in gastronomical process, it is inhomogeneous to reduce heating.

The micro-wave oven of the 14th scheme is characterised in that to have gratin is placed in indication at the central part of rotary body indicating device.

If according to said apparatus, according to indication gratin is placed on the central part of rotary body, then how the anglec of rotation of rotary body encourages the position of mouth and gratin to concern all about equally.Thus, will prevent that according to the anglec of rotation change excitation mouth of rotary body and the position relation of gratin generation is heated inhomogeneous on gratin.

The micro-wave oven of the 15th scheme is characterised in that excitation mouth is arranged on the central part of fore-and-aft direction in the sidewall of cooking room and above rotary body.

If according to said apparatus, then on central part, form the microwave concentrated area as excitation mouthful positive rotary body.Owing to place the part of gratin among this central part person of being to use is unconscious, so also can not be placed on the microwave concentrated area to gratin even do not pay special attention to.

The micro-wave oven of the 16th scheme is characterised in that control device makes the rotary body rotation or makes the rotary body rotation continuously according to gratin selection each described form with scheme 1,4 or 6.

If according to said apparatus, be under the situation on plane then at gratin, irradiating microwaves when rotary body is rotated continuously.Thus because equably at gratin irradiating microwaves on the whole, so will reduce heat inhomogeneous.

The micro-wave oven of the 17th scheme is characterised in that control device repeatedly is rotated stopping, rotating, stopping of body repeatedly in the cooking time.

If according to said apparatus, then owing to provide the impression of the interrupted rotation of rotary body, so will prevent to provide the inharmonious sense that rotary body does not rotate fault etc. to the user.

The micro-wave oven of the 18th scheme is characterised in that control device makes rotary body only stop the certain hour that sets in advance.

If according to said apparatus, then,, will prevent reliably that the generation heating is inhomogeneous on gratin so the specific part of gratin is heated for a long time by the concentrated area owing to can make the various piece of gratin constant reliably in the face of the time of excitation mouth.

Description of drawings:

Fig. 1 illustrates the 1st embodiment of the present invention (a is the outside drawing that general structure roughly is shown, and b is the vertical profile front view that the inside of Machine Room is shown).

Fig. 2 illustrates the perspective view of rotary body for the installment state of RT motor.

Fig. 3 is the top view that rotation net is shown.

Fig. 4 illustrates relation between the rotation status of cooking time and rotation net (a is when manually cooking, when b is automatic-cooking).

Fig. 5 is the schematic block diagram that electric structure is shown.

Fig. 6 illustrates the 2nd embodiment of the present invention (outside drawing of general structure roughly is shown).

Fig. 7 and Fig. 4 (b) are suitable.

Fig. 8 illustrates the present invention the 3rd embodiment, and is suitable with Fig. 4 (a).

Fig. 9 illustrates the present invention the 4th embodiment, and is suitable with Fig. 3.

Figure 10 illustrates the present invention the 5th embodiment, and is suitable with Fig. 3.

Figure 11 and Fig. 2 are suitable.

Figure 12 illustrates the present invention the 6th embodiment, and is suitable with Fig. 2.

Figure 13 illustrates the present invention the 7th embodiment, and is suitable with Fig. 2.

Figure 14 illustrates the present invention the 8th embodiment, and is suitable with Fig. 2.

Figure 15 illustrates the present invention the 9th embodiment, and is suitable with Fig. 2.

Figure 16 illustrates the present invention the 10th embodiment, and is suitable with Fig. 3.

Figure 17 illustrates the present invention the 11st embodiment, and is suitable with Fig. 3.

The working of an invention form

Below, referring to figs. 1 through Fig. 5 the 1st embodiment of the present invention is described.At first, in Fig. 1 (a), casing 1 constitutes case 1b in the internal configurations of outer container 1a, and forms cooking room 2 in the inside of interior case 1b.And, rotary door 3 is installed on casing 1, the opening portion of cooking room 2 fronts is accompanied by the rotating operation of door 3 and opens and closes.

Shown in Fig. 1 (b), in casing 1 inside, forming Machine Room 4 at the right side branch that is positioned at cooking room 2, in Machine Room 4, disposing waveguide 5 and magnetron 6.In addition, shown in Fig. 1 (a), on the right side wall of cooking room 2, the central part that is positioned at fore-and-aft direction is being provided with excitation mouth 7, and this excitation mouth 7 is communicated with waveguide 5 shown in Fig. 1 (b).This excitation mouth 7 is positioned at the bottom of cooking room 2, if magnetron 6 actions are then passed through excitation mouth 7 at cooking room 2 internal radiation microwaves from waveguide 5.

As shown in Figure 2, in casing 1, the below that is positioned at cooking room 2 is setting RT motor 8.This RT motor is made of syncmotor, and the rotating shaft 8a of RT motor 8 is projected into the bottom in the cooking room 2, and forming the cross section on the fore-end of rotating shaft 8a is the embedded part 8b of rectangular shape.

The rotation net 9 that is equivalent to rotary body is installed on the rotating shaft 8a of RT motor 8.Shown in Fig. 1 (a), this rotation net 9 is configured in the below of excitation mouth 7, as shown in Figure 2, sleeve 9a by the embedded part 8b outside that can be entrenched in RT motor 8 with loading and unloading, constitute circular frame part 9b, the net 9c that is positioned at frame part 9b inside constitutes, and net 9c constitutes point-symmetric mesh for the axle core (=sleeve 9a) of frame part 9b as shown in Figure 3.

On the net 9c of rotation net 9, shown in Fig. 1 (a), mounting the cooking dishes 10 of concentric circles.This cooking dishes 10 is made of microwave transmission materials such as glass and potteries, is printing gratin is placed in indication at the central part of cooking dishes 10 icon (not shown) on the cooking dishes 10.

The central part of cooking dishes 10 is parts relative with excitation mouthfuls 7, the cover microwave.Thus, if gratin is placed on the central part of cooking dishes 10 according to icon, then the microwave cover to gratin, cooking thing efficiently.In addition, the icon of cooking dishes 10 is equivalent to indicate the indicating device that gratin is placed on the central part of rotation net 9.

On the left side wall of cooking room 2, the gas sensor 11 that is equivalent to gas-detecting device is installed.This gas sensor 11 is the sensors that are used to detect the gas flow (water vapour amount) that discharges from gratin, and output is corresponding to the signal of telecommunication of detected gas flow.In addition, in Machine Room 4, dispose control circuit board (not shown), on control circuit board, carrying control device 12 (with reference to Fig. 5).This control device 12 is equivalent to drive the control device of control magnetron 6 and RT motor 8, constitutes main body with microcomputer.

Shown in Fig. 1 (a), in casing 1, the place ahead that is positioned at Machine Room 4 is being provided with guidance panel 13.In the front of guidance panel 13, as shown in Figure 5, automatic-cooking key 14a is installed, time knob 14b, initiate key 14c, liquid crystal display device 14d.Automatic-cooking key 14a is used to select Steamed chicken meat, rice, steamed dumpling with the dough gathered at the top, matelote, the heating of wine, the button of the automatic-cooking that thaws etc. of uncooked food, control device 12 is under the situation of having operated automatic-cooking key 14a, according to judging from the output signal of gas sensor 11 whether the cooking stops.Time key 14b is the button that is used to set the cooking time, and control device 12 finishes the cooking in the moment of having passed through the setting-up time of being set by time knob 14b under the situation of having operated time key 14b.

On the rotating shaft 8b of RT motor 8, as shown in Figure 2, connecting circular lobe plate 15, on the outer peripheral face of lobe plate 15, protruding 15a is being installed.And, in the side of lobe plate 15 limit switch 16 is installed, under original state, the plunger of limit switch 16 is pushed by protruding 15a, and limit switch 16 is in conducting state.In addition, the symbol 17 of Fig. 2 illustrates the angle detection device that is made of lobe plate 15 and limit switch 16.

Secondly, the effect of said structure is described.In addition, following actions is that control device 12 carries out according to the control program that is stored among the inner ROM in advance.

＜manually the cooking 〉

If control device 12 detects the rotating operation of time knob 14b, then set cooking time T according to the operational ton of time knob 14b.In this state,, then power supply is supplied to magnetron 6 if detect the operation of initiate key 14c, from waveguide 5 through blasting mouth 7 at cooking room 2 internal radiation microwaves.Meanwhile, on display unit 14d, show the residue cooking time, be accompanied by the carrying out of the cooking, reduce to remain the demonstration of cooking time.

In addition, setting drive circuit board (not shown) in Machine Room 4, as shown in Figure 5, carrying drive circuit of magnetron 6a on drive circuit board, control device 12 drives control magnetron 6 by drive circuit of magnetron 6a.

In the ROM of the inside of control device 12, storing the relation of the rotation amount of the driving time of RT motor 8 and rotation net 9, shown in Fig. 4 (a), if detecting from the cooking, control device 12 begins the time of having passed through (T-t)/2, then the storage data according to inner ROM only supply to RT motor 8 to power supply at time t, make rotation net 9 Rotate 180s ° integratedly with the rotating shaft 8b of RT motor 8, in addition, t is the rotation net 9 Rotate 180s ° needed times.

If passed through setting-up time T, then control device 12 finishes the cooking to magnetron 6 outages.And, power supply is being supplied to RT motor 8, make after rotation net 9 rotations, push the plunger of limit switch 16 by the protruding 15a of lobe plate 15, if detect limit switch 16 conductings, then, make rotation net 9 return to original state 8 outages of RT motor.

＜based on the automatic-cooking of gas sensor 〉

In the ROM of the inside of control device 12, storing heating corresponding to wine, the gas flow a reference value of gratins such as steamed dumpling with the dough gathered at the top, if control device 12 detects the operation of automatic-cooking key 14a, then ROM reads gas flow a reference value and cooking program corresponding to selected gratin internally, is written in the internal RAM.

For example, under nonplanar cooking situations such as heating of selecting wine, if control device 12 detects the operation of initiate key 14c, then power supply is supplied to magnetron 6, at cooking room 2 internal radiation microwaves according to cooking program.

If the irradiation of beginning microwave, then control device 12 detections compare the gas flow a reference value of this output signal and internal RAM from the output signal of gas sensor 11.And, shown in Fig. 4 (b),, then only in time t, power supply is supplied to RT motor 8 if the output signal that detects from gas sensor 11 rises to the gas flow a reference value, make cooking dishes 10 Rotate 180s ° with rotation net 9.

If the variation of output signals rate that control device 12 detects from gas sensor 11 has reached cooking stop value, then, finish the cooking magnetron 6 outages.Then, drive RT motor 8, make rotation net 9 return to original state up to limit switch 16 conductings.In addition, preestablish the gas flow a reference value and make the rotation that is rotated net 9 in the moment of having passed through half cooking time T.

In addition, under the situation of selecting the plane cookings such as steamed dumpling with the dough gathered at the top, if control device 12 detects the operation of home key 14c, then power supply is supplied in magnetron 6 and the RT motor 8 according to cooking program, rotate cooking dishes 10 limits continuously at cooking room 2 internal radiation microwaves with rotation net 9 limits.And, if the variation of output signals rate that detects from gas sensor 11 has reached cooking stop value, then, make end of cooking magnetron 6 outages.Meanwhile, drive RT motor 8, make rotation net 9 return to original state up to limit switch 16 conductings.In addition, the end of cooking value is stored among the inside ROM of control device 12 in advance.

If according to the foregoing description, then under the rotation halted state of rotation net 9 in cooking room 2 internal radiations after the microwave, make rotation net 9 Rotate 180s °, then under the halted state of rotation net 9 at cooking room 2 internal radiation microwaves.Thus, even gratin is placed on the microwave concentrated area (central part) of rotation net 9, because the specific part of gratin can be not relative with excitation mouthfuls 7 and by heat intensive, so also general's cooking thing equably effectively.

Yet, as shown in Figure 3, the length dimension La along the long side direction of the mesh of rotation net 9 is set at greater than [λ/2] that are easy to by microwave, the length dimension Lb along short side direction is set at less than [λ/4] that are difficult to by microwave.Thus, when the microwave that reflects upward from the bottom surface of cooking room 2 passed through mesh, the throughput of microwave changed according to the anglec of rotation of mesh.In addition, because the wall electric current that flows through rotation net 9 is by the bearing of trend rectification along long vertical excellent 9d, so can change according to the microwave distribution in the anglec of rotation cooking room 2 of rotation net 9.

To this, in the above-described embodiments, the mesh shape of rotation net 9 as point symmetry.Thus, even, keep the microwaves in the cooking room 2 to distribute consistently, so prevent to be subjected to the influence of mesh shape on gratin, to produce to heat inhomogeneous because a rotation net Rotate 180 ° mesh shape does not change in fact yet.

In addition, owing to dispose excitation mouth 7 on the right side wall of cooking room 2, when the rotation of rotation net 9 stopped, the part in the face of excitation mouth 7 in the gratin was heated especially doughtily.Yet, because on the relative basis of the other parts that are accompanied by rotation net 9 rotation gratins and excitation mouth 7, the mesh shape of rotation net 9 is made point symmetry, so the influence that will prevent excited target mouth 7 is in that to produce heating on the gratin inhomogeneous and produced by the influence of mesh change of shape to heat inhomogeneous on gratin.

In addition, when the manual cooking, half cooking time T that is set makes rotation net 9 Rotate 180s ° according to about process.Thus, owing to, make the time equalization of the each several part of gratin, so it is inhomogeneous to reduce heating in the face of excitation mouth 7 by only driving the simple control of 1 rotation net 9.And, with high frequency make the situation of rotation net 9 Rotate 180s ° different owing to utilize the rotation of rotation net 9 to stir microwave in the cooking room 2, prevent from that microwave from distributing to change, thus from this point also will reduce heat inhomogeneous.

Also have, when automatic-cooking, reach the gas flow a reference value according to the gas flow that produces from gratin and make rotation net 9 Rotate 180s °.Thus, even under the situation that does not preestablish cooking time T, owing to also making rotation net 9 rotations, make the gratin each several part in the face of encouraging the time approximate equality of mouth 7, so it is inhomogeneous also will to reduce heating with the suitable timing of half cooking time of about process.

Also have, when automatic-cooking, according to gratin change gas flow a reference value.Thus, although change according to the gratin cooking time owing to can make rotation net 9 rotations with the suitable timing of half cooking time of about process, thus the kind of gratin how all will reduce heat inhomogeneous.

Also have, print icon on cooking dishes 10, indication is placed on gratin the central part of cooking dishes 10.Thus, if gratin is placed on the central part of cooking dishes 10 according to indication, then owing to be not subjected to the influence of rotation net 9 rotations, how the anglec of rotation of rotation net 9 encourages the position relation of mouth 7 and gratin all to equate, so it is inhomogeneous also will to reduce heating from this point.

Also have, owing to excitation mouthfuls 7 is configured in the fore-and-aft direction central part of cooking room 2 and is positioned at the top of rotation net 9, so form the microwave concentrated area at central part as the cooking dishes 10 in excitation mouthful 7 fronts.Thus, if gratin is placed on the central part of cooking dishes 10, then regardless of the anglec of rotation of rotation net 9 and since all from excitation mouthfuls 7 to gratin cover microwave, so can be equably cooking thing effectively.And, because the part that the central part person of being to use of rotation net 9 places gratin among unconscious, so even have the advantage of not paying special attention to also can be placed on gratin the microwave concentrated area.

Also have, when having selected plane such as steamed dumpling with the dough gathered at the top gratin, begin to end of cooking to drive RT motor 8 from the cooking, when making rotation net 9 rotations at cooking room 2 internal radiation microwaves.Thus, microwave is stirred in the rotation by rotation net 9, at gratin irradiating microwaves equably on the whole, so will reduce heat inhomogeneous.

Secondly, according to Fig. 6 and Fig. 7 the 2nd embodiment of the present invention is described.In addition, label that the parts mark identical with above-mentioned the 1st embodiment is identical and omission explanation, below, different parts only are described.At first, among Fig. 6, infrared ray sensor 18 is installed on the roof of cooking room 2.This infrared ray sensor 18 is equivalent to detect the temperature-detecting device of gratin surface temperature, and output is corresponding to the signal of telecommunication of gratin surface temperature.

In the ROM of the inside of control device 12, storing heating corresponding to wine, the temperature reference value of the gratin of steamed dumpling with the dough gathered at the top etc., if control device 12 detects the operation of automatic-cooking key 14a, then ROM reads temperature reference value and cooking program corresponding to selected gratin internally, is written in the internal RAM.For example, under the situation of having selected the nonplanar cooking,, then power supply is supplied to magnetron 6, at cooking room 2 internal radiation microwaves according to cooking program if detect the operation of initiate key 14c.

If the beginning microwave irradiation, then control device 12 detections compare the temperature reference value of output signal and internal RAM from the output signal of infrared ray sensor 18.And, as shown in Figure 7,, then only power supply is supplied to RT motor 8 at time t if the output signal that detects from infrared ray sensor 18 rises to the temperature reference value, make cooking dishes 10 Rotate 180s ° with rotation net 9.The temperature reference value be predefined, passed through moment about half in cooking time T and be rotated the value of the rotation of net 9.

If the output signal that control device 12 detects from infrared ray sensor 18 has reached cooking stop value, then, finish the cooking magnetron 6 outages.And, drive RT motor 8 up to limit switch 16 conductings.Make rotation net 9 return to original state.In addition, cooking stop value is stored among the inside ROM of control device 12 in advance.

In addition, under the situation of having selected the plane cooking, if control device 12 detects the operation of home key 14c, then power supply is supplied to magnetron 6 and RT motor 8 according to cooking program, when making cooking dishes 10 rotation continuously with rotation net 9 at cooking room 2 internal radiation microwaves.And, if the output signal that detects from infrared ray sensor 18 has reached cooking stop value, then, finish the cooking magnetron 6 outages.Meanwhile, drive RT motor 8,, make rotation net 9 return to original state up to limit switch 16 conductings.

If according to the foregoing description, then when automatic-cooking, reach the temperature reference value according to the temperature of gratin, make rotation net 9 Rotate 180s °.Thus, even under the situation that does not preestablish cooking time T, owing to also making rotation net 9 rotations, make the various piece of gratin face the time approximate equality of excitation mouth 7, so it is inhomogeneous to reduce heating according to the suitable timing of half cooking time of about process.

In addition, in the above-mentioned the 1st and the 2nd embodiment, make rotation net 9 Rotate 180s ° through moment of only about half of cooking time T, yet, be not limited thereto, for example also can be in the every process of cooking time T about 1/4,1/6 ... make rotation net 9 each Rotate 180 °.

Secondly, according to Fig. 8 the 3rd embodiment of the present invention is described.In addition, label that the parts mark identical with above-mentioned the 1st example is identical and omission explanation, below, different parts only are described.On the guidance panel 13, the increase key is being set and is reducing key (per 1 does not all have diagram), if control device 12 detects the operation that increases key when manually cooking, then cooking time T is carried out add operation according to the number of operations that increases key, if detect the operation that reduces key, then cooking time T is carried out subtraction according to the number of operations that reduces key.

Under the situation of said structure, if the manually cooking of beginning, then control device 12 supplies to magnetron 6 to power supply, at cooking room 2 internal radiation microwaves.And, whenever just power supply is supplied to RT motor 8 through scheduled time Ta, make rotation net 9 Rotate 180s °.

If according to the foregoing description, then make rotation net 9 rotations through scheduled time Ta each.Thus, though in gastronomical process the cooking time change because also can be to the various piece of gratin irradiating microwaves more equably, thus can reduce heat inhomogeneous.

Also have, in cooking time T, repeatedly be rotated stopping, rotating, stopping of net 9 repeatedly.Thus, owing to can offer the user to the printing that rotation net 9 rotates intermittently, so will prevent to provide rotation net 9 not rotate the inharmonious sense of fault etc.

Also have, make rotation net 9 only stop predefined certain time interval T a.Thus, encourage the time of mouth 7 constant reliably, concentrated long-time heating so will reliably prevent the specific part of gratin, thereby generation is heated on gratin inhomogeneous because the various piece of gratin is faced.

In addition, in above-mentioned the 1st to the 3rd embodiment, make rotation net 9 Rotate 180s °, yet be not limited thereto, in a word, as long as the various piece that makes gratin with time of approximate equality in the face of excitation mouthful 7 such about Rotate 180s °.

In addition, in above-mentioned the 1st to the 3rd embodiment, make rotation net 9 Rotate 180s °, yet be not limited thereto, for example, also can rotate " 180 ° * (2n+1) ", be that unit gets final product with 180 ° in a word.Wherein, n is a natural number.

Secondly, according to Fig. 9 the 4th embodiment of the present invention is described.In addition, label that the parts mark identical with above-mentioned the 1st embodiment is identical and omission explanation, below, different parts only are described.The mesh shape of the net 9c of rotation net 9 forms for the center line A1 by the axle core and becomes left-right symmetry, symmetry before and after becoming for center line A2.

Under the situation of this structure, if control device 12 detects the operation of rotating operation and the initiate key 14c of time knob 14b, then after having set cooking time T, power supply is supplied to magnetron 6, at cooking room 2 internal radiation microwaves according to the operational ton of time knob 14b.And, from the each elapsed time T1 of cooking beginning, T2, T3 only RT motor 8 driving times " t/2 ", makes rotation net 9 each half-twist.In addition, the details of time T 1～T3 such as following.

T1=(T-3t/2)/4

T2=2(T-3t/2)/4+t/2

T3=3(T-3t/2)/4+t

If control device 12 detects the operation of automatic-cooking key 14a and the operation of initiate key 14c, then ROM reads gas flow benchmark and cooking program corresponding to gratin internally, is written in the internal RAM.This gas flow benchmark is made of the 1st gas flow a reference value, the 2nd gas flow a reference value, the 3rd gas flow a reference value, when control device 12 reaches the 1st gas flow a reference value, the 2nd gas flow a reference value, the 3rd gas flow a reference value in the output signal from gas sensor 11 at every turn, 8 driving times of RT motor " t/2 ", the timing that reaches T1～T3 with the cooking time makes rotation net 9 each half-twist.

If according to the foregoing description, under the halted state of rotation net 9 after cooking room 2 internal radiation microwaves, make rotation net 9 half-twists, then under the halted state of rotation net 9 at cooking room 2 internal radiation microwaves.Thus, even the microwave that gratin is placed on rotation net 9 is concentrated position (central part), the specific part of gratin can be not relative with excitation mouthfuls 7 and by heat intensive yet, thus can be equably cooking thing effectively.Meanwhile, because the rotation amount of rotation net 9 is less than 90 °, microwave is even for the irradiation of gratin, thus from this point also will reduce heat inhomogeneous.And, the mesh shape of rotation net 9 is formed left-right symmetry and front and back symmetry.Thus, even rotation net 9 half-twists, the mesh shape does not change in fact yet, owing to keep the microwaves in the cooking room 2 to distribute consistently, so will prevent to be subjected to the influence of mesh shape to produce on gratin to heat inhomogeneous.

In addition, in above-mentioned the 1st to the 4th embodiment, make rotation net 9 from the initial position rotation, yet be not limited thereto, also can get the structure of the initial position of not setting rotation net 9.Under the situation of this structure, owing to removed lobe plate 15, protruding 15a and limit switch 16, so simplify the structure.

In addition, in above-mentioned the 1st to the 4th embodiment, excitation mouth 7 is arranged on the right side wall of cooking room 2, yet is not limited thereto, for example also can be arranged on the left side wall of cooking room 2, in a word, be arranged on on 9 one-tenth eccentric parts of rotation net.

Secondly, according to Figure 10 and Figure 11 the 5th embodiment of the present invention is described.In addition, for the identical label of parts identical mark and omit explanation, below different parts only are described with above-mentioned the 1st embodiment.At first, in Figure 10, swivel plate 19 is that conductive material punch process such as steel plate are become discoid parts, on the swivel plate 19, arrange 3 opening portion 19a that become fan shape along circumferencial direction, the full-size L of each opening portion 19a is set at " 1/2 " greater than the microwave wavelength λ that vibrates from magnetron 6.In addition, swivel plate 19 is equivalent to rotary body, is placing cooking dishes 10 on swivel plate 19.

3 opening portion 19a are with 120 ° uniformly-spaced set, and are forming discoideus chassis portion 19b on the swivel plate 19, circular frame portion 19c, 4 bracing bars 19d.These 4 bracing bars 19d is equivalent to current-carrying part, and with 120 ° uniformly-spaced configuration, each stay 19d forms the rectilinear form that extends to diametric(al).In addition, below swivel plate 19, as shown in figure 11, be positioned at central part and fixing bump 19e cylindraceous.The cross section of this bump 19e forms rectangular shape, can be nested in the outside of embedded part 8b of the rotating shaft 8a of RT motor 8 with loading and unloading.

The lobe plate 15 of RT motor 8 is configured in the outside of cooking room 2, and lobe plate 15 top fixing single pin 20a and to pin 20b, single pin 20a is clipped in the middle the rotating shaft 8a of RT motor 8 relative with 180 ° with pin 20b is configured to.In addition, fixing the optical sensor 20c of transmission-type in the bottom of cabinet 1.This optical sensor 20c is installed with light-emitting component and photo-sensitive cell in two ends of the carriage that constitutes the font, if lobe plate 15 rotations, then between light-emitting component and photo-sensitive cell by single pin 20a and to pin 20b.In addition, label 20 expressions are by single pin 20a, to the angle detection device of pin 20b and optical sensor 20c formation.

If control device 12 detects the operation of rotary manipulation and the initiate key 14c of time knob 14b, then after the operational ton setting cooking time T according to time knob 14b, power supply is supplied in the RT motor 8, make swivel plate 19 and lobe plate 15 rotate.At this moment, if single pin 20a then because the light coverlet pin 20b that sends from light-emitting component blocks, does not have the incident light for photo-sensitive cell, so export the 1st reference position signal from photo-sensitive cell by between the light-emitting component and photo-sensitive cell of optical sensor 20c.In addition, if pin 20b is passed through between light-emitting component and the photo-sensitive cell, then since the light that sends from light-emitting component by pin 20b is blocked intermittently, interrupted for the incident light of photo-sensitive cell, so from the photo-sensitive cell output 2nd reference position signal different with the 1st reference position signal.

If control device 12 detects from optical sensor 20c and exported the 1st reference position signal or the 2nd reference position signal, then 8 outages of RT motor, plate 19 stops the rotation.And, to magnetron 6 supply powers, at cooking room 2 internal radiation microwaves.Then, from cooking beginning elapsed time T1 and T2,, make swivel plate 19 respectively rotate 120 ° at every turn just 8 driving times of RT motor " 2t/3 ".In addition, time T 1 is as follows to the details of time T 2.

T1={T-2(2t/3)}/3

T2=2{T-2(2t/3)/3}+2t/3

If control device 12 detects the operation of automatic-cooking key 14a and detects later on and operated initiate key 14c, then read corresponding to stop angle θ ° of the swivel plate 19 of the chosen content of automatic-cooking key 14a, the 1st gas flow a reference value G1, the 2nd gas flow a reference value G2 and cooking program.

If the anglec of rotation of swivel plate 19 changes, then will produce the variation of the Electric Field Distribution that is caused by rectification along the circumferencial direction of stay 19d owing to the wall electric current, because the variation in the microwave distribution of variation in cooking room 2 of the transmission/reflection of the microwave that causes of opening 19a.Above-mentioned stop angle θ ° is the stop angle of the swivel plate 19 that distributes corresponding to the best microwave of gratins such as " heating of rice ", " canned wine " according to can obtaining of obtaining of each gratin sample plot, be defined as 2 kinds, be that swivel plate 19 is exported the angle of advancing of the 1st reference position of the 1st reference position signal from single pin 20a by optical sensor 20c, swivel plate 19 is from exporting the angle of advancing of the 2nd reference position of the 2nd reference position signal by optical sensor 20c to pin 20b.

If control device 12 is read stop angle θ ° corresponding to gratin, then set since the output of the 1st reference position signal only the RT motor 8 in elapsed time " t * θ °/180 ° " disconnection regularly, and stop angle θ ° compared with 60 °.Here, if detect " θ °＜60 ° ", then set another of RT motor 8 that has only passed through the time " t * (θ+60) °/180 ° " since the output of the 2nd reference position signal and disconnect regularly.

If control device 12 detects " θ ° 〉=60 ° ", then set only other disconnection timing of the RT motor 8 in elapsed time " t (θ-60) °/180 ° " of output since the 2nd reference position signal.Swivel plate 19 becomes 120 ° of rotation symmetric shapes owing to 3 stay 19d of equidistant configuration, so if with the predetermined RT motor 8 that regularly disconnects, then swivel plate 19 stops with identical stay shape in the rotation front and back.

If set the disconnection timing of RT motor 8, then control device 12 provides power supply to RT motor 8, makes swivel plate 19 and lobe plate 15 rotate.At this moment, exported the 1st reference position signal, then, swivel plate 19 has been stopped at set angle θ ° so that the 1st reference position signal is regularly disconnected RT motor 8 as the setting of starting point if go out to detect from optical sensor 20c.In addition, exported the 2nd reference position signal, then, swivel plate 19 has been stopped at set angle θ ° so that the 2nd reference position signal is regularly disconnected RT motor 8 as the setting of starting point if detect from optical sensor 20c.

If swivel plate 19 is stopped, then control device 12 supplies to magnetron 6 to power supply, at cooking room 2 internal radiation microwaves.Then, output signal from gas sensor 11 reaches the 1st gas flow a reference value G1 and the 2nd gas flow a reference value G2 at every turn, only RT motor 8 driving times " 2t/3 ", the timing that reaches above-mentioned T1～T2 with the cooking time makes swivel plate 19 respectively rotate 120 °.

If according to the foregoing description, then,, the microwave in the cooking room 2 becomes the form that is suitable for gratin so distributing because swivel plate 19 is positioned at the reference position.And, make the swivel plate 19 of 120 ° of rotation symmetric figures respectively rotate 120 ° from the reference position.Thus, the specific part of gratin can in the face of excitation mouthfuls 7 by the basis of heat intensive on keep constant because microwaves in 2 are stopped up in the cooking before and after being distributed in rotation, so can be with the even microwave distribution ground of the best cooking thing effectively.

In addition, because the shape in the cooking room 2 is a cube roughly,, the microwave in the cooking room 2 is easy to become the left-right and front-back symmetry so distributing.Thus, under the situation of the rotation net 9 of Fig. 9 of the rotation net 9 of the Fig. 3 that uses 180 ° of rotation symmetric figures or 90 ° of rotation symmetric figures, the mesh shape of rotation net 9 distributes along the microwaves in the cooking room 2.

To this, in the above-described embodiments, swivel plate 19 equal intervals 3 stay 19d that extend to diametric(al) are set, make swivel plate 19 become 120 ° of rotation symmetric figures.Thus, can access diversified abundant microwave according to the position of rotation of swivel plate 19 and distribute, so the desirable microwave that is easy to form corresponding to gratin distributes.And, because the simple shape of swivel plate 19 can be made swivel plate 19 by the drawing of conductive plate, so will improve the manufacturing operation of swivel plate 19.

In addition, when detecting the angle of swivel plate 19, be not subjected to the optical sensor 20c of effect of microwave,, swivel plate 19 stopped on stop position θ ° so will improve the accuracy of detection of pin 20a and 20b owing to use.

In addition, lobe plate 15, single outside of selling 20a, pin 20b, optical sensor 20c being configured in cooking room 2.Thus, because each parts are difficult to be subjected to from the heat affecting in the microwave office 2, so the anti-thermotectonics of each parts is simplified.

Also having, generate different the 1st reference position signal and the 2nd reference position signal with angle detection device 20, be the disconnection timing that starting point is set RT motor 8 with the 1st reference position signal and the 2nd reference position signal certain 1.Thus, generate 1 reference position signal with using angle detection device 20, with 1 reference position signal is that the disconnection situation regularly that starting point is set RT motor 8 is compared, shortened from RT motor 8 begin rotate to the time of output reference position signalling and turn-off time from the output reference position signalling to RT motor 8.

Secondly, according to Figure 12 the 6th embodiment of the present invention is described.In addition, for the parts mark identical identical label and omission explanation with above-mentioned the 5th embodiment, below, different parts only are described.Fixing cam 21 on the lobe plate 15.This cam 21 has 1 cam projection 21a an end, has 2 cam projection 21b in another end.1 cam projection 21a and 2 cam projection 21b are clipped in the middle the rotating shaft 8a of RT motor 8 and with 180 ° relatively.

Fixing microswitch 22 on the bottom in the casing 1, cam 21 is with lobe plate 15 rotations, if the plunger 22a of microswitch 22 is pushed by 1 cam projection 21a, then from connection signal of microswitch 22 outputs.In addition, if the plunger 22a of microswitch 22 is pushed by 2 cam projection 21b continuously, exporting connection signal continuously twice from microswitch 22.In addition, the angle detection device that constitutes by cam 21 and microswitch 22 of label 23 expression.

Under the situation of said structure, control device 12 is treated to the 1st reference position signal to the single connection signal from microswitch 22, continuous connection signal is treated to the 2nd reference position signal, makes swivel plate 19 stop corresponding to angle θ ° of gratin.In this case, owing to mechanically construct angle detection device 23 with cam 21 and microswitch 22, so will improve the calorific intensity of angle detection device 23.

Secondly, according to Figure 13 the 7th embodiment of the present invention is described.In addition, for the parts mark identical identical label and omission explanation with above-mentioned the 5th embodiment, below, different parts only are described.On the lobe plate 15 with 120 ° equidistantly fixing 3 pins 24, if respectively sell 24 by between the light-emitting component and photo-sensitive cell of optical sensor 20c, then the light that sends from light-emitting component is blocked by each pin 24, from photo-sensitive cell output reference position signalling.In addition, the angle detection device that constitutes by 3 pins 24 and optical sensor 20c of label 25 expression.

If control device 12 detects in the operation of automatic-cooking key 14a and has operated initiate key 14c later on, then read corresponding to stop angle θ ° of the swivel plate 19 of automated content etc., set from the output of reference position signal begun to pass through time " t * θ °/180 ° " RT motor 8 disconnection regularly.

If set the disconnection timing of RT motor 8, then control device 12 is provided to RT motor 8 to power supply, makes swivel plate 19 and lobe plate 15 rotations.At this moment, if detect from optical sensor 20c and exported the reference position signal, then the timing that has begun to pass through setting-up time " t * θ °/180 ° " with the output from the reference position signal disconnects RT motor 8, and swivel plate 19 is being stopped corresponding to angle θ ° of gratin.And, in cooking room 2 internal radiations behind the microwave, whenever reach the 1st gas flow a reference value G1 and the 2nd gas flow a reference value G2 just RT motor 8 driving times " 2t/3 " from the output signal of gas sensor 11, make swivel plate 19 respectively rotate 120 °.

If according to the foregoing description, then 120 ° of each rotations of swivel plate 19 are just from optical sensor 20c output reference position signalling, thus will further shorten from the RT motor begin rotate to the time of output reference position signalling and time from the output reference position signalling to disconnection RT motor 8.

In addition, in above-mentioned the 7th embodiment, on lobe plate 15, fix 3 pins 24, respectively sell 24 generation reference position signals according to using optical sensor 20c to detect, yet be not limited thereto, for example, also can be as Figure 14 of expression the 8th embodiment of the present invention, on lobe plate 15 with 120 ° equidistantly fix 3 permanent magnets 26, at the outer peripheral portion of lobe plate 15 Magnetic Sensors 27 such as Hall element are set.In this case, if each permanent magnet 26 near Magnetic Sensor 27, Magnetic Sensor 27 closures then are from Magnetic Sensor 27 output reference position signallings.Here, the angle detection device that constitutes by 3 permanent magnets 26 and Magnetic Sensor 27 of label 28 expression.

Secondly according to Figure 15 the 9th embodiment of the present invention is described.In addition, for the parts mark identical identical label and omission explanation with above-mentioned the 5th embodiment, below, different parts only are described.Base 19a at swivel plate 19 arranges 3 fan-shaped opening 19f of formation along circumferencial direction.These 3 opening 19f are with 120 ° equidistant configuration, form 3 short stay 19g with 120 ° equidistant configuration on swivel plate 19.

Each stay 19g is equivalent to current-carrying part, forms the short lines shape of extending along the diametric(al) of swivel plate 19, the mid portion of the circumferencial direction between 2 long stay 19d.In addition, the 1st conduction group that label 29 expression is made of 3 short stay 19g of the circumferential portion that is positioned at swivel plate 19, the 2nd conduction that label 30 expressions are made of 3 long stay 19d of the outer peripheral portion that is positioned at swivel plate 19 group.The 1st conduction group the 29 and the 2nd conduction group 30 protuberance 19e with swivel plate 19 (the axle core that is equivalent to swivel plate 19) are that center configuration becomes concentric circles, even become respectively with 120 ° of also immovable 120 ° of rotation symmetric figures of unit rotation shape.

If according to the foregoing description, the 1st conduction group the 29 and the 2nd conduction group 30 is set on swivel plate 19 then.Thus,, the microwave that further strengthens cooking room 2 is distributed, further obtain diversified abundant microwave and distribute, so be easier to form the desirable microwave distribution of corresponding gratin according to the stop position of swivel plate 19.

In addition, in above-mentioned the 5th～the 9th embodiment, the increase key is set and reduces key, in the manual cooking, operated under the situation that increases key or minimizing key, can whenever after the operation that increases key or minimizing key make swivel plate 19 rotate 120 ° through certain time interval T b.

In addition, in above-mentioned the 5th～the 9th embodiment, make swivel plate 19 respectively rotate 120 °, yet be not limited thereto, for example also can respectively rotate 480 °, in a word so long as be that unit gets final product with 120 ° (integral multiples of 120 °).

In addition, in above-mentioned the 5th～the 9th embodiment, being swivel plate 19 that benchmark respectively rotates 120 ° corresponding to the stop position of gratin, yet be not limited thereto, for example, the stop position corresponding to gratin also can be set, and respectively rotate 120 ° from original state.In this case, because on the various piece of the gratin basis in the face of the time equalization of excitation mouthfuls 7, it is constant that microwave cooking room 2 in is distributed, so with cooking thing effectively equably.

Secondly according to Figure 16 the 10th embodiment of the present invention is described.In addition, for the identical label of parts identical mark and omit explanation, below different parts only are described with above-mentioned the 4th embodiment.Swivel plate 31 becomes disc to conductive material punch process such as steel plates, arranges along circumferencial direction on swivel plate 31 and forms 4 opening 31a.This swivel plate 31 is equivalent to rotary body, and cooking dishes 10 is set on swivel plate 31.

4 opening 31a form the base 31b of circular plate type, the frame 31c of annular, 4 bracing bars 31d with 90 ° equidistant configuration on swivel plate 31.These 4 bracing bars 31d is equivalent to current-carrying part, and with 90 ° equidistant configuration, each stay 31d becomes the linear that extends along diametric(al).In addition, below swivel plate 31, fixing the columniform protuberance 31e that is positioned at mid portion.This protuberance 31e forms the cross section oblong-shaped, can be nested in the outside of embedded part 8b of the rotating shaft 8a of RT motor 8 with loading and unloading.

If control device 12 detects the operation of initiate key 14c, then power supply is supplied to magnetron 6.And, no matter be the situation of manually setting the situation of cooking time T or setting automatic-cooking, every through scheduled time Ta (for example 10 seconds) just in the time " t/2 " to RT motor 8 supply powers, make swivel plate 31 each interrupted half-twist up to end of cooking.

If according to the foregoing description, then owing to make swivel plate 31 form 90 ° of rotation symmetric figures, sequentially carry out under the halted state of swivel plate 31 action at cooking room 2 internal radiation microwaves, make the action of swivel plate 31 half-twists, under the halted state of swivel plate 31 in the action of cooking room 2 internal radiation microwaves, so will be equably cooking thing effectively.

In addition, in the above-mentioned the 3rd and the 10th embodiment, make rotation net 9 and swivel plate 31 respectively rotate certain 90 °, yet be not limited thereto, for example respectively rotate certain 450 °, or with 180 °, 90 °, 180 ° variation ground rotations, in a word, as long as be rotated with 90 ° of (90 ° integral multiples) units.

Secondly, according to Figure 17 the 11st embodiment of the present invention is described.In addition, for the identical label of parts identical mark and omit explanation, below different parts only are described with above-mentioned the 1st embodiment.Swivel plate 32 becomes disc to conductive material punch process such as steel plates, arranges along circumferencial direction on swivel plate 32 and forms 5 fan-shaped opening 32a.This swivel plate 32 is equivalent to rotary body, and cooking dishes 10 is set on swivel plate 32.

5 opening 32a form the base 32b of circular plate type, the frame 32c of annular, 5 stay 32d with 72 ° equidistant configuration on the swivel plate 32.These 5 bracing bars 32d is equivalent to current-carrying part, and with 72 ° equidistant configuration, each stay 32d becomes the linear that extends along diametric(al).In addition, below swivel plate 32, be positioned at mid portion and fixing columniform protuberance 32e.This protuberance 32e becomes the cross section rectangular shape, can be nested in the outside of embedded part 8b of the rotating shaft 8a of RT motor 8 with loading and unloading.

If control device 12 detects the operation of initiate key 14c, then power supply is supplied to magnetron 6.And, no matter be the situation of manually setting the situation of cooking time T or setting automatic-cooking, every through scheduled time Ta (for example 10 seconds) just during time " 72t/180 " to RT motor 8 supply powers, each intermittently rotates 72 ° up to end of cooking to make swivel plate 31.

If according to the foregoing description, then because swivel plate 32 is formed 72 ° of rotation symmetric figures, sequentially carry out under swivel plate 32 halted states action at cooking room 2 internal radiation microwaves, make the action of 72 ° of swivel plate 32 rotations, under the halted state of swivel plate 32 in the action of cooking room 2 internal radiation microwaves, so cooking thing effectively equably.

In addition, in above-mentioned the 4th to the 11st embodiment, according to judging the end of automatic-cooking, yet be not limited thereto from the output signal of gas sensor 11, for example also can be as the 2nd embodiment, according to the end of judging automatic-cooking from the output signal of infrared ray sensor 18.

In addition, in the above-mentioned the 4th and the 10th embodiment, make rotation net 9 and swivel plate 31 each half-twist, in above-mentioned the 5th to the 9th embodiment, make swivel plate 19 respectively rotate 120 °, in above-mentioned the 11st embodiment, make swivel plate 32 respectively rotate 72 °, yet be not limited thereto, in a word, so long as the various piece of gratin with about equally time and excitation mouthfuls 7 relative make like that roughly 90 °, roughly 120 ° of each rotations of swivel plate, roughly 72 ° get final product.

In addition, in above-mentioned the 1st to the 11st embodiment, control the rotation amount of rotation net 9, swivel plate 19, swivel plate 31, swivel plate 32 according to the driving time of RT motor 8, yet be not limited thereto, for example, also can constitute the RT motor, according to the rotation amount of controlling rotation net 9, swivel plate 19, swivel plate 31, swivel plate 32 from the output signal of encoder with servo motor.

In addition, the weight sensor that detects the weight that is placed on the gratin on the rotating disc 10 can be set also in above-mentioned the 1st to the 11st embodiment, automatically set cooking time T according to output signal from weight sensor.

In addition, in above-mentioned the 1st to the 11st embodiment, under the state that keeps driving magnetron 6, make rotation net 9, swivel plate 19, swivel plate 31, swivel plate 32 rotations, yet be not limited thereto, for example also can when the rotation of rotation net 9, swivel plate 19, swivel plate 31, swivel plate 32, stop to drive magnetron 6.

In addition, in above-mentioned the 1st to the 11st embodiment, indicate the feasible central part that gratin is placed on cooking dishes 10, still be not limited thereto, for example also can indicate to make gratin is placed on the eccentric position for cooking dishes 10 central parts, the placement location of gratin is the concentrated part of microwave preferably.

In addition, in above-mentioned the 1st to the 11st embodiment, the present invention is applicable in the cooking stove cooking special microwave oven, yet is not limited thereto, also can be applicable to the present invention in the micro-wave oven that for example has the heater cooking function.

Known to from above explanation, micro-wave oven of the present invention has following effect.

If micro-wave oven according to the 1st scheme, then owing to sequentially carry out under the rotation halted state of above-mentioned rotary body action at above-mentioned cooking room internal radiation microwave, make above-mentioned rotary body with the approximately action of integral multiple unit's rotation of " 360 °/N ", under the rotation halted state of above-mentioned rotary body,, therefore incite somebody to action equably cooking thing effectively in the action of above-mentioned cooking room internal radiation microwave.

If according to the micro-wave oven of the 2nd scheme, then because rotary body is rotated from the reference position with the about integral multiple unit of " 360 °/N ", so can be with the even microwave distribution ground of the best cooking thing effectively.

If according to the micro-wave oven of the 3rd scheme, then because at the output signal of telecommunication so that approximately the integral multiple unit of " 360 °/N " makes the rotary body rotation at every turn, so shortening is used for rotary body is positioned at the needed time on the reference position.

If micro-wave oven according to the 4th scheme, then owing to the opening that on rotary body, is provided with greater than microwave wavelength " 1/2 ", and current-carrying part is extended to diametric(al), distribute so will obtain diversified abundant microwave, the desirable microwave that is easy to form corresponding to gratin distributes.

If according to the micro-wave oven of the 5th scheme, then owing to be provided with a plurality of conduction groups on rotary body, so will further enrich the kind that microwave distributes, the microwave that is easier to form corresponding to gratin distributes.

If micro-wave oven according to the 6th scheme, then since under the halted state of rotary body after cooking room internal radiation microwave, rotary body is rotated with about 180 ° integral multiple unit, then under the halted state of rotary body at cooking room internal radiation microwave, so will be equably cooking thing effectively.

If according to the micro-wave oven of the 7th scheme, then since according to through the only about half of cooking time chien shih rotary body rotate.Thus, can be corresponding to the simple control that only drives 1 rotary body.

If micro-wave oven according to the 8th scheme, then since under the halted state of above-mentioned rotary body after above-mentioned cooking room internal radiation microwave, above-mentioned rotary body is rotated with 90 ° integral multiple unit, then under the halted state of above-mentioned rotary body at above-mentioned cooking room internal radiation microwave, therefore will be equably cooking thing effectively.

If according to the micro-wave oven of the 9th scheme, though excitation mouthful is set on the sidewall of cooking room, yet because rotary body is rotated intermittently, the influence that therefore will prevent the excited target mouth on gratin, produces heat inhomogeneous.

If according to the micro-wave oven of the 10th scheme, then make the rotary body rotation owing to reach a reference value according to the gas flow that produces from gratin.Thus, even under the situation that does not preestablish the cooking time, the also even various piece of cooking thing.

If according to the micro-wave oven of the 11st scheme, then, the temperature according to gratin makes the rotary body rotation owing to reaching a reference value.Thus, even under the situation that does not preestablish the cooking time, the also even various piece of cooking thing.

If according to the micro-wave oven of the 12nd scheme, then because according to gratin change gas flow a reference value or temperature reference value, thus, and even under situation corresponding to gratin cooking asynchronism(-nization), the also even various piece of cooking thing.

If according to the micro-wave oven of the 13rd scheme, then owing to after each process scheduled time, make the rotary body rotation.Thus, even in gastronomical process under the situation of change cooking time, the also even various piece of cooking thing.

If according to the micro-wave oven of the 14th scheme, then owing to indicate the central part that makes at rotation net to place gratin, therefore, it is inhomogeneous not to be subjected to the influence of rotary body rotation will reduce the heating of gratin.

If according to the micro-wave oven of the 15th scheme, then the excitation mouth is arranged on the central part of fore-and-aft direction in the sidewall of cooking room and above rotation net, therefore, even the user does not pay special attention to can be placed on gratin the microwave concentrated area of rotary body yet.

If according to the micro-wave oven of the 16th scheme, then since when under gratin is the situation on plane, can make the rotary body rotation at cooking room internal radiation microwave, even therefore the plane gratin also will reduce heat inhomogeneous.

If according to the micro-wave oven of the 17th scheme, then since in the cooking time repeated multiple times be rotated stopping, rotating, stopping of body, so can prevent to provide the inharmonious sense that rotary body does not rotate fault etc. to the user.

If the micro-wave oven of foundation the 18th scheme then owing to make rotary body only stop the certain hour that sets in advance, so can make the various piece of gratin constant in the face of the time of excitation mouth reliably, can prevent reliably that the generation heating is inhomogeneous on gratin.

Claims (18)

1. a micro-wave oven is characterized in that having

The cooking room that has the excitation mouth at inwall;

In this cooking room, be provided with, place the rotary body of gratin;

Magnetron by above-mentioned excitation mouth irradiating microwaves in above-mentioned cooking room;

Rotation drives the motor of above-mentioned rotary body;

Drive the control device of above-mentioned magnetron of control and said motor,

Above-mentioned rotary body is arranged in the state that has rotated " 360 °/N (N is the integer more than 2) " and descends and the preceding roughly the same rotation symmetric figure of shape of rotation,

Above-mentioned control device carries out under above-mentioned rotary body rotation halted state the action to above-mentioned cooking room internal radiation microwave in proper order, make above-mentioned rotary body with the approximately action of integral multiple unit's rotation of " 360 °/N ", under the rotation halted state of above-mentioned rotary body to the action of above-mentioned cooking room internal radiation microwave.

2. micro-wave oven as claimed in claim 1 is characterized in that,

Angle detection device with the anglec of rotation that detects rotary body,

Control device makes rotary body stop at the action of reference position according to the testing result of angle detection device and makes rotary body with the roughly action of integral multiple unit's rotation of " 360 °/N " from the reference position.

3. micro-wave oven as claimed in claim 2 is characterized in that,

Angle detection device is at rotary body output signal of telecommunication during at every turn with the integral multiple unit rotation of roughly " 360 °/N ".

4. as each described micro-wave oven of claim 1 to 3, it is characterized in that,

Rotary body constitutes 120 ° of rotation symmetric figures that have with 3 current-carrying parts that roughly equidistantly extend to diametric(al);

Between the conductive part of adjacency circumferencial direction, form the peristome 1/2nd or more of full-size in microwave wavelength.

5. as each described micro-wave oven of claim 1 to 3, it is characterized in that,

It is that center configuration becomes roughly a plurality of conduction groups of concentric circles that rotary body has with the axle core,

Each conduction group constitutes 120 ° of rotation symmetric figures that have with 3 current-carrying parts that roughly equidistantly extend to diametric(al).

6. a micro-wave oven is characterized in that having

The cooking room that has the excitation mouth at inwall;

In this cooking room, be provided with, place the rotary body of gratin;

Magnetron by above-mentioned excitation mouth irradiating microwaves in above-mentioned cooking room;

Rotation drives the motor of above-mentioned rotary body;

Drive the control device of above-mentioned magnetron of control and said motor,

Above-mentioned rotary body is slightly point-symmetric mesh with respect to the axle center of above-mentioned rotary body,

Above-mentioned excitation mouth is configured on the part for the axle core off-centre of above-mentioned rotary body,

Above-mentioned control device carries out under the halted state of above-mentioned rotary body the action to above-mentioned cooking room internal radiation microwave in proper order, make above-mentioned rotary body with roughly 180 ° the action of integral multiple unit rotation, under the halted state of above-mentioned rotary body to the action of above-mentioned cooking room internal radiation microwave.

7. micro-wave oven as claimed in claim 6 is characterized in that,

Control device is the rotation of chien shih rotary body according to through the cooking of only about half of setting the time.

8. a micro-wave oven is characterized in that having

The cooking room that has the excitation mouth at inwall;

In this cooking room, be provided with, place the rotary body of gratin;

Magnetron by above-mentioned excitation mouth irradiating microwaves in above-mentioned cooking room;

Rotation drives the motor of above-mentioned rotary body;

Drive the control device of above-mentioned magnetron of control and said motor,

Above-mentioned rotary body constitutes the mesh shape of left-right symmetry roughly and front and back symmetry for the center line of the axle core by above-mentioned rotary body,

Above-mentioned excitation mouth is configured on the part for the axle core off-centre of above-mentioned rotary body,

Above-mentioned control device carries out under the halted state of above-mentioned rotary body the action to above-mentioned cooking room internal radiation microwave in proper order, make above-mentioned rotary body with roughly 90 ° the action of integral multiple unit rotation, under the halted state of above-mentioned rotary body to the action of above-mentioned cooking room internal radiation microwave.

9. as claim 1,6, each described micro-wave oven of 8, it is characterized in that,

The excitation mouth is arranged on the sidewall of cooking room.

10. as claim 1,6, each described micro-wave oven of 8, it is characterized in that,

Gas-detecting device with gas flow that detection sends from gratin,

Control device reaches a reference value according to the output signal from gas-detecting device makes the rotary body rotation.

11. as claim 1,6, each described micro-wave oven of 8, it is characterized in that,

Temperature-detecting device with the temperature that detects gratin,

Control device reaches a reference value according to the output signal from temperature-detecting device makes the rotary body rotation.

12. as claim 10 or 11 described micro-wave ovens, it is characterized in that,

Control device changes a reference value according to gratin.

13. as claim 1,6, each described micro-wave oven of 8, it is characterized in that,

Control device makes the rotary body rotation in each process during the scheduled time.

14. as claim 1,6, each described micro-wave oven of 8, it is characterized in that,

Central part at rotary body has the indicating device that indication is provided with gratin.

15. as claim 1,6,8, each described micro-wave oven of 14, it is characterized in that,

Excitation mouth be arranged on cooking room the sidewall fore-and-aft direction central part and above rotary body.

16. the micro-wave oven as claim 1,6, each record of 8 is characterized in that

Control device selects rotary body with claim 1,6,8 each described form rotation or rotation continuously according to gratin.

17. as claim 1,6, each described micro-wave oven of 8, it is characterized in that,

Control device repeatedly is rotated stopping, rotating, stopping of body repeatedly in the cooking time.

18., it is characterized in that as claim 1,6, each described micro-wave oven of 8

Control device makes rotary body only stop predefined certain hour.

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