CN1264384C - Induction heating cooker - Google Patents
Induction heating cooker Download PDFInfo
- Publication number
- CN1264384C CN1264384C CNB021472564A CN02147256A CN1264384C CN 1264384 C CN1264384 C CN 1264384C CN B021472564 A CNB021472564 A CN B021472564A CN 02147256 A CN02147256 A CN 02147256A CN 1264384 C CN1264384 C CN 1264384C
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- Prior art keywords
- induction heating
- coil
- heating cooking
- body case
- cooking instrument
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B6/00—Heating by electric, magnetic or electromagnetic fields
- H05B6/02—Induction heating
- H05B6/10—Induction heating apparatus, other than furnaces, for specific applications
- H05B6/12—Cooking devices
- H05B6/1209—Cooking devices induction cooking plates or the like and devices to be used in combination with them
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Induction Heating Cooking Devices (AREA)
Abstract
The device is provided with an upper body case 3 with opened upper part, a top plate 30 on a plane made of a ceramic material arranged on the top face of the upper body, a plurality of induction heating coils 22 arranged at an opening position in the upper body case, a control base board 23 having a control part for electrically controlling an output of each induction heating coil, and a tabular shielding plate 27 made of a conductive material fitted on the top face of the upper body case in opposition to the top plate above the induction heating coils and the control substrate and below the top plate for closing the opening of the upper body case.
Description
Technical field
The present invention relates to heating device (electric range), particularly assembling is easy to heating device.
Background technology
Figure 15 is the structural profile schematic diagram of No. 3163520 disclosed existing induction heating cooking instrument of communique of Japan Patent, and Figure 16 is the exploded perspective view of same induction heating cooking instrument major part.
As shown in the figure, on the pillar 112 that the bottom surface of resinous basket 111 is provided with, heater coil brace table 113 is housed, fixing with bolt 114, heater coil 115 is housed on the heater coil brace table 113, be provided with ceramic upper plate 116 at an upper portion thereof.
The side of heater coil brace table 113 is formed with the wire carrying portion 119 of vertical slot shape recess, in the wire carrying portion 119 by the stacked a plurality of magnetic screens conductive component 120a-120d that is equipped with of above-below direction.
Magnetic screen is that the synthetic resin with soft good insulating such as silicones or heat-resisting vinyl chloride coats around electric wire with conductive component 120a-120d.Then as shown in figure 16, the coating at the two ends of coated electric wire is peelled off, and connects into ring-type by connector 121 crimping, and connector 121 inserts in the notch portion 122 of wire carrying portion 119 outer wall tops setting.
Existing induction heating cooking instrument becomes the structure shown in above-mentioned, and the high-frequency current of frequency-transposition arrangement 118 is supplied with heater coil 115, and heater coil 115 just produces magnetic field.This magnetic field produces interlinkage flux to what place on the top board 116 as cooker made of iron, makes cooker produce overcurrent, and cooker generates heat because of Joule heat thus.
On the other hand, produce induced current from magnetic field that heater coil 115 produces in magnetic screen with conductive component 120a-120d, this induced current is equidirectional with the inboard magnetic field with heater coil 115 of conductive component 120a-120d in magnetic screen, then produce the backing field in the outside, leak towards periphery in the magnetic field that therefore can suppress heater coil 115 generations.
As implied above, in the existing induction heating cooking instrument, on the pillar 112 that the bottom surface of resinous basket 111 is provided with, heater coil brace table 113 is housed, fixing with bolt 114.Heater coil 115 is housed on the heater coil brace table 113, is provided with ceramic top board 116 in the above.
The resistance to impact of ceramic top board 116 is more weak, the pot of placing on the cooking midplane top board 116 is affected by magnetic fields little vibration, oil and dish are stirred fully, frying pan up-down vibration and top board 116 have collision, and on the kitchen range top, top board 116 exposes with plane, therefore might occur cooker fall crack, breakage etc., liquid such as water are invaded basket 111, the problem that causes electric device such as frequency-transposition arrangement for example to break down.
Summary of the invention
The objective of the invention is to obtain such induction heating cooking instrument, even just in case take place unusually on the top board, cooking device also can be guaranteed electrical safety, and the induction coil that reduces simultaneously as pyrotoxin produces the magnetic field of leaking towards periphery.
This induction heating cooking instrument of first aspect present invention, the control circuit board that disposes a plurality of load coils in the main body case of peristome respectively and have the control part of these load coils outputs of electric control is arranged in the above, and comprise the tabular top board that constitutes by ceramic material of closed above-mentioned peristome, it is characterized in that below described top board, being furnished with the flat baffle board that forms by electric conducting material of the above-mentioned peristome of closed aforementioned body case.
The induction heating cooking instrument of second aspect present invention is characterized in that forming on the above-mentioned baffle board a plurality of coil opennings, and each coil is with disposing above-mentioned load coil in the openning.
The induction heating cooking instrument of third aspect present invention is characterized in that above-mentioned each coil is provided with downward bend with openning.
The induction heating cooking instrument of fourth aspect present invention is characterized in that each coil of above-mentioned baffle board is come closed with openning by the sealing plate that makes with nonmagnetic substance.
The induction heating cooking instrument of fifth aspect present invention, the control circuit board that disposes a plurality of load coils in the main body case of peristome respectively and have the control part of these load coils outputs of electric control is arranged in the above, and comprise the tabular top board that constitutes by ceramic material of closed above-mentioned peristome, it is characterized in that below described top board, being furnished with the tabular heat resistant plastice plate of the above-mentioned peristome of closed aforementioned body case.
The induction heating cooking instrument of sixth aspect present invention is characterized in that being equipped with the ring-shaped magnetic shield member that constitutes with electric conducting material around above-mentioned each load coil, and this load coil is curled.
The induction heating cooking instrument of seventh aspect present invention is characterized in that above-mentioned heat resistant plastice plate is transparent.
Description of drawings
Fig. 1 is that the induction heating cooking instrument of the embodiment of the invention 1 is installed in the generalized section on the kitchen range top.
Fig. 2 is that identical induction heating cooking instrument is installed in the oblique view on the kitchen range top.
Fig. 3 is the oblique view that identical induction heating cooking instrument unloads lower roof plate assembly state.
Fig. 4 is the generalized section of the A-A line of Fig. 3.
Fig. 5 is the bend of baffle board of identical induction heating cooking instrument and the size schematic diagram of load coil.
Fig. 6 is the generalized section of the B-B line of Fig. 3.
Fig. 7 is that identical induction heating cooking instrument is installed in the kitchen range top, and unloads the generalized section of the major part of lower roof plate assembly state.
Fig. 8 is the generalized section of the induction heating cooking instrument major part of the embodiment of the invention 2.
Fig. 9 is that identical induction heating cooking instrument is positioned on the kitchen range top, unloads the generalized section of the major part of lower roof plate assembly state.
Figure 10 be the baffle board of identical induction heating cooking instrument and sealing plate oblique view.
Figure 11 is the generalized section of the induction heating cooking instrument major part of the embodiment of the invention 3.
Figure 12 is the generalized section of the induction heating cooking instrument major part of the embodiment of the invention 4.
Figure 13 is the generalized section of the induction heating cooking instrument major part of the embodiment of the invention 5.
Figure 14 is the generalized section of the induction heating cooking instrument major part of the embodiment of the invention 6.
Figure 15 is the structural profile schematic diagram of existing induction heating cooking instrument.
Figure 16 is the exploded perspective view of existing induction heating cooking instrument major part.
Symbol description: 1 induction heating cooking instrument, 2 kitchens range top, 3 upper body casees, 4 sub-body casees,
22 load coils, 27 baffle boards.
Embodiment
Fig. 1 is that the induction heating cooking instrument of the embodiment of the invention 1 is installed in the generalized section on the kitchen range top, Fig. 2 is that identical induction heating cooking instrument is installed in the oblique view on the kitchen range top, Fig. 3 is the oblique view that identical induction heating cooking instrument unloads the lower roof plate state, Fig. 4 is the generalized section of the A-A line of Fig. 3, Fig. 5 is the bend of baffle board of identical induction heating cooking instrument and the size schematic diagram of load coil, Fig. 6 is the generalized section of the B-B line of Fig. 3, and Fig. 7 is identical induction heating cooking instrument and the generalized section that combines, unloads lower roof plate state major part of the kitchen range top.
Among the figure, the 1st, the induction heating cooking instrument that combines with the kitchen range top 2, the 3rd, the upper body case of peristome is arranged above the induction heating cooking instrument 1, the 4th, the sub-body case of induction heating cooking instrument 1, the 5th, the outer gas of offering respectively about the back of induction heating cooking instrument 1 enters the outer gas admission passage of sub-body case 4, the 6th, the air-suction cover that is provided with of the air inlet of gas admission passage 5 outside, the 7th, the outer gas inlet port that the exhaust outlet with outer gas admission passage 5 that forms at the rear side of sub-body case 4 is connected.
The 8th, the outer gas intercommunicating pore that on the bottom of upper body case 3, forms, this bottom becomes the dividing plate with sub-body case 4, and the 9th, the outer gas outlet that forms on the antetheca of upper body case 3.The 10th, the outer gas outlet that forms on the sidewall of sub-body case 4.
The 11st, the baking box that door 12 is arranged that sub-body case 4 front sides are provided with, the 13rd, the forced draft fan that sub-body case 4 rear sides are provided with, the 14th, the power supply circuit board that transformer and various electric devices are arranged that is provided with in sub-body case 4 middles.15a, 15b are the operation knob of the cooking device that is provided with of the front downside of baking box 11 and the operation knob of baking box, the 16th, and the display part that the front upside of baking box 11 is provided with.
The 18th, 3 coil support platforms that are provided with respectively in the upper body case 3.The circular coil supporting disk 19 of band holding tank 19a and 4 support columns 20 of support coils supporting disk 19 are arranged around each coil support platform 18, and the lower end of each support column 20 is fixed on the bottom of upper body case 3.
The 22nd, by the load coil that insulation-coated lead constitutes, be supported in the circular coil supporting disk 19 of each coil support platform 18 and become vortex shape, the opening surface of the top and upper body case 3 of load coil 22 slightly becomes with one side.The 23rd, the bottom of upper body case 3, be arranged on load coil 22 just below beyond the position, the control circuit board of the control part that is used for 22 outputs of electric control load coil is installed.
The 24th, the top board assembly support of the level that on the outer peripheral edges of upper body case 3, forms, the 25th, the buffering installation portion, it carries out bending from top board assembly support 24, extends, and outer most edge has downward " U " font groove.The 26th, for example with the main body cushion pad of adhesive securement in the groove of cushion pad installation portion 25.The 27th, the inboard of the top board assembly support 24 of upper body case 3 is for example with the baffle board that is made of electric conducting material adhesive securement, that cover upper body case 3 peristomes.Also available screw is fixed on baffle board on the top board assembly support 24.
The top correspondence position of 3 load coils 22 that are provided with in the baffle board 27 middle and upper part main body cases 3 has the coil aperture window 28 that omits heavy caliber than the external diameter of load coil 22 respectively, the down-turned portion of each coil aperture window 28 is 29, have among the band holding tank 19a around the coil support dish 19 of the lower end embedding coil support platform 18 of the down-turned portion 29 of each coil aperture window 28, be the clamping holding state.The maintenance face of load coil 22 is same plane with the bottom of holding tank 19a in the coil support dish 19.As shown in Figure 5, the relation of the coil outer diameter d of the bending length size t of the bend 29 of baffle board 27 and load coil 22 is represented with following formula.
t≥d
The 30th, the top board made from ceramic material, be used to place cooker.The 31st, section is the square framework of U font, is used for top support plate 30.This framework 31 has the top board window 32 than the little circle of profile of top board 30.
The 34th, the top board of a type bears utensil, and it is installed on the inboard bottom of framework 31, and reserves appropriate intervals, on the come-up board screw hole is arranged.The 36th, the roof plate supporting utensil, it is made of pressing tablet 36a and stator 36b, and this stator 36b has screw hole, and is connected with pressing tablet 36a, and it forms step each other, and this is the device that top board is supported.The 38th, mounting screw, the 39th, the sealing cushion pad of frame shape, on it for example was installed in around the inner face of interior plate 31a with bonding agent, the top board that interior plate 31a constitutes framework 31 was with window 32.The sealing height of the height dimension of cushion pad 39 greater than the interior plate 31a of framework 31.
The 41st, the top board assembly that framework 31 and top board 30 one are assembled into.
The madial wall 31a that top board assembly 41 is installed in framework 31 makes top board 30 fill out top board window 32 in framework 31; it is corresponding with the screw hole of the stator 36b of top board stator 36 that each top board that the inside bottom of framework 31 is installed bears the screw hole of come-up board of utensil 34; the protection top board of making so as to flexible material is with cushion pad 40; the pressing plate 36a of each top board stator 36 docks with top board 30 outer peripheral edges, and the screw hole that the screw hole of the stator 36b of each top board stator 36 and each top board bear the come-up board of utensil 34 assembles with construction bolt 38.
Zhuan Pei top board assembly 41 is assembled in the upper body shell 3 like this, constitutes induction heating cooking instrument 1.And the induction heating cooking instrument of Gou Chenging is installed on the kitchen range top 2 as shown in Figure 2 like this.
And, also can sub-body shell 4 and upper body shell 3 be installed on the kitchen range top 2 in advance, then top board assembly 41 is installed in the upper body shell 3.And, also can form an integral body to sub-body shell 4 and upper body shell 3.
The induction heating cooking instrument 1 of Gou Chenging as stated above, if the cooking device to the place ahead downside of being arranged on baking box 11 is operated with operation knob 15a, then power supply circuit board 14 and control circuit board 23 etc. are started working, and beginning supplies to high-frequency current in the load coil 22.The high frequency magnetic field that load coil 22 is produced if be placed on cooking pot on the top board 30 (diagram is omitted) intersecting chain, then cooking pot carries out induction heating.Like this.The cooking food that has deposited in the cooker is cooked.
And if baking box is operated with operation knob 15b, then control circuit (diagram is omitted) is started working, and to the heater of baking box 11, heater generates heat electric current supply in beginning, and the cooking portion in the baking box 11 carries out cooking.
Moreover, in the process of using induction heating cooking instrument 1, forced draft fan 13 drives, moreover, enter into outer gas by air-suction cover 6 and introduce extraneous air in the road 5, enter in the sub-body shell 4 from the outer gas inlet port 7 of sub-body shell 4, cool off through 13 pairs of power supply circuit boards 14 of forced draft fan and baking box 11, outer gas is again by outer gas intercommunicating pore 8, enter in the upper body shell 3, to control circuit board 23 and load coil 22 and output display part 16, temperature, timer display part 17 cools off, and outer then gas is from the outer gas outlet 9 of upper body shell 3,10 discharge to the outside.
According to the induction heating cooking instrument of embodiments of the invention 1, the baffle board 27 that the peristome of upper body case 3 is made up of electric conducting material covers, and 3 coil aperture windows 28 are arranged on the baffle board 27, and outer rim is fixed on the inboard of top board assembly support 24.Top board 30 is set above the baffle board 27.Owing in upper body case 3, on the lower position of baffle board 27, dispose the control circuit board 23 that is provided with control part, even so induction heating cooking instrument 1 in use top board 30 crack, breakage etc., baffle board 27 can prevent that also sealing enters the control circuit board 23 in the upper body case 3 etc.
The baffle board 27 that electric conducting material is formed has 3 coil aperture windows 28, dispose the load coil 22 in the coil support dish 19 that is arranged on coil support platform 18 in each coil aperture window 28, the magnetic field that load coil 22 produces makes baffle board 27 produce induced current, because baffle board 27 self can produce reciprocal magnetic field, therefore can suppress the magnetic field that load coil 22 leaks towards periphery.
The down-turned portion 29 that is provided with on each coil aperture window 28 of baffle board 27 has constituted the containment wall around the load coil 22 in the coil support dish 19 that covers coil brace table 18, has further suppressed the magnetic field that load coil 22 leaks towards periphery.
At this moment, form same plane if support the face of load coil 22 in the coil support dish 19 with the bottom of the holding tank 19a of the coil support dish 19 of bend 29 bottoms that become clamp position support baffle board 27, the bending length size t of bend 29 bending length size t identical with the coil outer diameter d of load coil 22 or bend 29 is bigger than the coil outer diameter d of load coil 22, just more can fully suppress the magnetic field that load coil 22 leaks towards periphery.
Because the outer peripheral edges of the baffle board 27 of electric conducting material install and fix on the top board assembly support 24 of upper body case 3 and contact, the heat of the in use heated baffle board 27 of induction heating cooking instrument 1 can loose through upper body case 3 easily.
Fig. 8 is the generalized section of the induction heating cooking instrument major part of the embodiment of the invention 2, Fig. 9 is that the identical induction heating cooking instrument of expression is located at the kitchen range top, unload the major part generalized section of lower roof plate assembly state, Figure 10 be the baffle board of identical induction heating cooking instrument and sealing plate oblique view.
The structure identical with the embodiment of the invention 1 among the figure, with identical symbol, the repetitive description thereof will be omitted.
3 coil aperture windows 28 of the baffle board 27 that electric conducting material constitutes among the embodiment 2 are closed with the square sealing plate 33 that nonmagnetic substance is made respectively, and the outer peripheral edges of sealing plate 33 engage with baffle board 27 with for example adhesive.Therefore, sealing plate 33 under just become the position of the load coil 22 in the coil support dish 19 of coil support platform 18.
Be positioned among the embodiment 2 each load coil 22 directly over, cover the sealing plate 33 of each coil aperture window 28 of baffle board 27, make with nonmagnetic substance, so the magnetic flux of load coil 22 does not have harmful effect to the cooking pot of placing on the top board on the sealing plate 33 30.
Each coil aperture window 28 usefulness sealing plate 33 of the baffle board 27 that electric conducting material forms cover, above baffle board 27 and the sealing plate 33 top board 30 is set, even so induction heating cooking instrument 1 in use top board 30 crack, breakage etc., because the existence of baffle board 27 and sealing plate 33 can prevent the control circuit boards 23 and load coil 22 water inlets that are provided with in the upper body case 3.
Figure 11 is the generalized section of the induction heating cooking instrument major part of the embodiment of the invention 3.
Figure 12 is the generalized section of the induction heating cooking instrument major part of the embodiment of the invention 4.
What embodiment 4 was sealings with the installation method of plate 27 and embodiment 2 is different, and the while is installed display lamp on baffle board 27.
Among the embodiment 4 as shown in figure 12, the following of sealing plate 33 made from nonmagnetic substance is provided with the installation sheet 33a that hangs down slightly in the inner part from outer peripheral edges, is the clamping holding state among the holding tank 19a of the bottom insertion coil support dish 19 of the bend 29 of installation sheet 33a and baffle board 27.
The lampshade hole 27a that baffle board 27 is provided with among the embodiment 4, lampshade hole 27a embeds lampshade 44, and display lamp 45 is housed in the lampshade 44.
Be provided with installation sheet 33a below the sealing plate made from nonmagnetic substance 33, the bottom that installation sheet 33a is installed among the holding tank 19a that is supported on coil support dish 19 with the bend 29 of baffle board 27 is clamp position jointly, covers coil aperture window 28 on baffle board 27.The mode of installing with the bonding agent of embodiment 1 is different, and is easy to the installation of baffle board 27, and the sealing plate 33 that nonmagnetic substance is made also is easy to change if any breakage.
Figure 13 is the generalized section of the induction heating cooking instrument major part of the embodiment of the invention 5.
Replace the baffle board 27 of embodiment 1 among the embodiment 5 and use heat resistant plastice plate 47, this heat resistant plastice plate 47 is not provided with coil aperture window 28 as embodiment 1.
The following position of inserting the holding tank 19a of coil support dish 19 in correspondence of heat resistant plastice plate 47 is provided with sagging installation sheet 47a, this installation sheet 47a is being supported by the holding tank 19a clamping of coil support dish 19, and the outer peripheral edges of heat resistant plastice plate 47 are placed on the top board assembly 24 of upper body case 3.
The magnetic shielding material 48 of ring-type and the installation sheet 47a of heat resistant plastice plate 47 in common clamping among the holding tank 19a of coil support dish 19, and magnetic shielding material 48 curls around load coil 22 and disposes.
Be provided with sagging lamp junction surface 49 below the heat resistant plastice plate 47, display lamp 45 is contained in the lamp junction surface 49 with embedding.
Like this, the peristome of upper body case 3 covers with transparent heat resistant plastice plate 47, around the load coil 22 ring-type dispose magnetic shielding material 48, magnetic shielding material 48 can suppress load coil 22 leakage field towards periphery.
The peristome of upper body case 3 is installed in the inboard of top board assembly support 24 by outer peripheral edges, and the transparent heat resistant plastice plate 47 that installation sheet 47a by the holding tank 19a clamping of coil support dish 19 covers, above the transparent heat resistant plastice plate 47 top board 30 is set, the control circuit board 23 that control part is housed is set on the lower position of heat resistant plastice plate 47 in the upper body case 3, even so induction heating cooking instrument 1 in use top board 30 crack, breakage etc., because the existence of heat resistant plastice plate 47 can prevent the control part water inlet of the control circuit board 23 of setting in the upper body case 3.
In addition, display lamp 45 is equipped with at the lamp junction surface 49 that is provided with on the heat resistant plastice plate of installing in the upper body case 3 47 with embedding, heat resistant plastice plate 47 sides are provided with the display lamp 45 as electric device, there are not display lamp 45 and distribution thereof on top board assembly 41 sides as electric device, so, even there is the top board assembly 41 of top board 30 to unload from upper body case 3, load coil 22 and control circuit board 23 can not expose yet, and are safe.
Have again, though heat resistant plastice plate 47 is clamped in by its installation sheet 47a among the holding tank 19a of coil support dish 19 and is fixed on upper body case 3, but when the outer peripheral edges of heat resistant plastice plate 47 are fixed on the top board assembly support 24 of upper body case 3, can not want installation sheet 47a.
Figure 14 is that (sic should be generalized section for the oblique view of induction heating cooking instrument major part of the embodiment of the invention 6.)
Like this, in the lamp fenestra 27b that installs in the upper body case 3 display lamp 63 is housed by setting on the baffle board 27 of thin glass plate 50 coverings, because baffle board 27 sides are provided with the display lamp 45 as electric device, there are not display lamp 45 and distribution thereof on top board assembly 41 sides as electric device, even there is the top board assembly 41 of top board 30 to unload from upper body case 3, load coil 22 and control circuit board 23 can not expose yet, and are safe.
In addition, owing to be provided with thin glass plate 50, baffle board 27 is provided with lamp fenestra 27b, in the lamp fenestra 27b display lamp 45 can be housed above the baffle board 45.
The induction heating cooking instrument 1 of above-mentioned embodiment of the invention 1-7 is the down explanation of state that is assembled in the kitchen range top 2, and is self-evident, is arranged on the form used on the kitchen range top 2 yes feasible.
The induction heating cooking instrument 1 of embodiment of the invention 1-7 is to use 3 load coils 22 to describe, and the induction heating cooking instrument with 1 or 2 resistance heating coil in 3 load coils 22 also is suitable for.
Have, baffle board 27 is provided with inclined plane and groove etc. again, also can direct into main body case place in addition safely just in case advanced water.
Induction heating cooking instrument according to the 1st aspect of the present invention, the control circuit board that the control part that a plurality of load coils and the output of electric control load coil are housed respectively in the main body case of opening is arranged above, and the tabular top board made of the ceramic material of relevant make and break oral area, below top board by the tabular baffle board of forming by electric conducting material of closing body main body case peristome, even induction heating cooking instrument in use top board cracks, also can prevent the charging part water inlet of the control part of the control circuit board of setting in the upper body case.
The baffle board of electric conducting material be installed in main body case above, induction heating cooking instrument is the heat of heated baffle board in use, can with scatter during the air of main body case directly contacts, play the effect of cooling.
According to the 2nd aspect of the present invention, baffle board is formed with a plurality of coil opennings, this each coil is with disposing load coil in the openning, produce magnetic field by load coil, on baffle board, produce induced current, because baffle board self can produce reciprocal magnetic field, therefore can suppress load coil reveals magnetic field towards periphery.
According to the 3rd aspect of the present invention, each coil has downward bend with openning, the shielded effect around load coil of this bend, and just further having suppressed load coil reveals magnetic field towards periphery.
According to the 4th aspect of the present invention, each coil of baffle board is remained silent as sealing plate with nonmagnetic substance with openning, therefore the magnetic flux of load coil does not have harmful effect to the cooking pot of placing on the top board on the sealing plate, even induction heating cooking instrument in use top board cracks, since baffle board and sealing plate existence, can prevent that the charging part and the load coil of the control part of the control circuit board that is provided with in the main body case from intaking.
Induction heating cooking instrument according to the 5th aspect of the present invention, the control circuit board that the control part that is respectively fitted with a plurality of load coils and the output of electric control load coil in the body main body case of opening is arranged in the above, and the tabular top board of the ceramic material of relevant make and break oral area, the flat heat resistant plastice plate of closing body main body case peristome is arranged below top board.Even induction heating cooking instrument in use top board cracks, the heat resistant plastice plate also can prevent the charging part water inlet of the control part of the control circuit board of setting in the upper body case.
According to the 6th aspect of the present invention, the heat resistant plastice plate is housed on the body main body case, cover body main body case peristome, there are a plurality of load coils in body main body case inner opening portion on the position, the ring-shaped magnetic shielding material of forming with electric conducting material around each load coil, this load coil curved configuration wherein, load coil produces magnetic field, the ring-shaped magnetic shielding material produces induced current, because the outside of magnetic shield material produces the backing field, therefore can suppress load coil reveals magnetic field towards periphery.
According to the 7th aspect of the present invention, because the heat resistant plastice plate is transparent, the situation that induction heating cooking instrument can load coil fully aware of when assembling.
Claims (7)
1. induction heating cooking instrument, the control circuit board that disposes a plurality of load coils in the main body case of peristome respectively and have the control part of these load coils outputs of electric control is arranged in the above, and comprise the tabular top board that constitutes by ceramic material of closed above-mentioned peristome, it is characterized in that below described top board, disposing the flat baffle board that forms by electric conducting material of the above-mentioned peristome of closed aforementioned body case.
2. according to the described induction heating cooking instrument of claim 1, it is characterized in that forming on the above-mentioned baffle board a plurality of coil opennings, each coil is with disposing above-mentioned load coil in the openning.
3. according to the described induction heating cooking instrument of claim 2, it is characterized in that above-mentioned each coil is provided with downward bend with openning.
4. according to any one described induction heating cooking instrument among the claim 1-3, it is characterized in that each coil of above-mentioned baffle board is come closed with openning by the sealing plate that makes with nonmagnetic substance.
5. induction heating cooking instrument, the control circuit board that disposes a plurality of load coils in the main body case of peristome respectively and have the control part of these load coils outputs of electric control is arranged in the above, and comprise the tabular top board that constitutes by ceramic material of closed above-mentioned peristome, it is characterized in that below described top board, disposing the tabular heat resistant plastice plate of the above-mentioned peristome of closed aforementioned body case.
6. according to the described induction heating cooking instrument of claim 5, it is characterized in that around above-mentioned each load coil, being equipped with the ring-shaped magnetic shield member that constitutes with electric conducting material, this load coil is curled.
7. according to the described induction heating cooking instrument of claim 6, it is characterized in that above-mentioned heat resistant plastice plate is transparent.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP210539/2002 | 2002-07-19 | ||
| JP2002210539 | 2002-07-19 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1469685A CN1469685A (en) | 2004-01-21 |
| CN1264384C true CN1264384C (en) | 2006-07-12 |
Family
ID=34179461
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB021472564A Expired - Fee Related CN1264384C (en) | 2002-07-19 | 2002-10-18 | Induction heating cooker |
Country Status (2)
| Country | Link |
|---|---|
| KR (1) | KR20040010014A (en) |
| CN (1) | CN1264384C (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4617676B2 (en) * | 2004-01-27 | 2011-01-26 | パナソニック株式会社 | Induction heating cooker |
| JP4375066B2 (en) * | 2004-03-16 | 2009-12-02 | パナソニック株式会社 | Built-in cooking device |
| JP4342451B2 (en) * | 2005-01-14 | 2009-10-14 | 株式会社東芝 | Cooker |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4040281A1 (en) * | 1990-12-17 | 1992-07-02 | Thomson Brandt Gmbh | INDUCTIVE COOKER |
| JPH05315067A (en) * | 1992-05-12 | 1993-11-26 | Matsushita Electric Ind Co Ltd | Induction heating cooking device |
| JP3148533B2 (en) * | 1994-11-07 | 2001-03-19 | 三洋電機株式会社 | Electromagnetic cooker |
-
2002
- 2002-10-16 KR KR1020020063083A patent/KR20040010014A/en not_active Application Discontinuation
- 2002-10-18 CN CNB021472564A patent/CN1264384C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| KR20040010014A (en) | 2004-01-31 |
| CN1469685A (en) | 2004-01-21 |
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