CN1264385C - Heating cooker - Google Patents

Abstract

The heating cooker of the present invention comprises: an upper main body box (3) with an opening on the upper side, three heating coils (22) arranged at the opening position in the upper main body box, and a coil (22) arranged on the top of the upper main body box A top plate (30) on a plane made of ceramic material. In this heating cooker, a plurality of mounting screws (38) are used to attach and detach freely on a plurality of ceiling receiving devices (34) that can be installed on the frame (31) on the upper main body box at appropriate intervals. The state installs the outer peripheral edge of top plate, forms the top plate assembly (41) that is installed on the upper main body box.

Description

heating cooker

technical field

The present invention relates to a heating cooker (electric heating range), in particular to a heating cooker which is easy to assemble.

Background technique

Fig. 18 is a sectional view showing the structure of a conventional induction heating cooker disclosed in, for example, Japanese Patent No. 3024564.

In the figure, a top plate 111 made of an inorganic material such as crystallized glass on which a cooking container 115 is placed is fixed to the upper surface of a main body frame 112 through a joint portion 113 coated with an adhesive. An induction heating coil 117 generating a high-frequency magnetic field, a control circuit 118 supplying high-frequency current to the induction heating coil 117 , and a cooling fan 116 are arranged inside the main body frame 112 . In addition, a curved portion 114 is provided on the joining portion 113 . The curved portion 114 serves as a cooling portion and has a larger gap with the top plate 111 than an adhesive application portion for bonding the top plate 111 .

Conventional induction heating cookers are constructed as described above, and when a start button (not shown) is pressed, the control circuit 118 starts to operate, and high-frequency current is started to be supplied to the induction heating coil 117 . When the high-frequency magnetic field generated by the induction heating coil 117 is magnetically interlinked with the cooking container 115 placed on the top plate 111 , the cooking container 115 is induced to be heated. In this way, the food placed in the cooking container 115 is cooked. During this cooking period, the cooling fan 116 operates to cool the stored components such as the induction heating coil 117 and the control circuit 118 .

In addition, the curved portion 114 is provided at the joint portion of the main body frame 112, and as a cooling portion, the gap formed between the top plate 111 and the top plate 111 is larger than the adhesive application portion where the top plate 111 is bonded, so the heat received from the cooking container 115 The influence of heat conduction is reduced. That is to say, the cooling air sent by the cooling fan 116 lowers the temperature of the joining portion 113 and can prevent the top plate 111 near the joining portion 113 from cracking or cracking.

In the above-mentioned conventional induction heating cooker, the top plate 111 on which the cooking container 115 is placed is fixed to the upper surface of the main body frame 112 by using the joint portion 113 coated with an adhesive, and the curved shape portion is provided on the joint portion 113. 114, it is used as a cooling part, and the gap formed between it and the top plate 111 is larger than the adhesive coating part of the bonding top plate 111, and the cooling air sent by the cooling fan 116 is used to lower the temperature of the joint part 113 to prevent the joint part 113 from The top plate 111 is split or cracked.

However, the top plate 111 made of inorganic materials such as crystallized glass has poor impact resistance. During the heating and cooking process, the cooking container 115 vibrates when placed on the flat top plate 111, or when frying vegetables with oil, in order to make the oil evenly contact the fried food. , the cooking container 115 is moved up and down, so the top plate 111 is bumped, or, when the top plate 111 exposes the plane on the pool, the tableware falls on the top plate 111, causing the top plate to crack or split.

And, a part of the top plate 111 directly receives the high temperature of the cooking pot, and when the top plate 111 thermally expands, because the top plate 111 is fixed on the top of the main body frame 112 by the joint portion 113 coated with adhesive, so the thermal expansion occurs. The stress concentrates on the fixed part. At this time, the curved portion 114 is cooled by the cooling air sent by the cooling fan 116 to lower the temperature of the joint portion 113 to prevent the top plate 111 near the joint portion 113 from cracking or cracking. If the cooling by the cooling air of the cooling fan 116 is insufficient, cracks or splits may occur at the portion where the top plate 111 and the adhesive are fixed.

Like this, the problem that exists is: if top plate 111 produces crackle or splits, must change top plate 111 during repairing, and top plate 111 is fixed on the top of main body outer frame 112 by adhesive agent, so, can not change and change top plate 111 alone.

Another problem that exists is: in recent years, from the point of view of saving resources, recycling has begun, but it is also difficult to separate the top plate 111 from the main body frame 112 during recycling, making recycling difficult.

Moreover, in general, the door of a microwave oven is composed of:

The metal door panel itself is stamped with many small holes so that the interior of the heating chamber can be viewed from its central part;

an inner transparent plate, which is arranged on the side of the heating chamber of the door panel, and its material is, for example, heat-resistant glass; and

an outer transparent panel mounted on the opposite side of the door panel from the heating chamber,

The inner transparent plate is fixed on the door panel by means of an adhesive and a mounting plate at its peripheral edge.

However, the inner transparent plate installed on the inner side of the microwave oven door is a vertical plate, and the heated cooking pot is placed on the turntable of the heating chamber, so the cooking pot will not directly touch the vertical inner transparent plate, and there will be no Cracks or splits, at the same time, are not directly exposed to the heat generated by the cooking pot, so there is little need for repair.

The present invention is just in order to solve the above problems, and its purpose is to make the top plate on the fixed frame installed on the main body box to be able to assemble and disassemble freely, and make a kind of heating cooker that easily replaces the top plate when repairing.

Contents of the invention

The object of the present invention is to provide a heating cooker which can be easily assembled. By attaching the top plate to the frame fixed to the main body box in a detachable state, a heating cooker in which the top plate can be easily replaced during repair is obtained.

The heating cooker according to the first aspect of the present invention has:

The main body box has an opening on it;

a plurality of heating coils arranged at opening positions in the main body box; and

a flat top plate, which is arranged on the main body box, is made of ceramic material,

This heating cooker is characterized in that the outer peripheral edge of the above-mentioned top plate is attached to the frame body that can be attached to the above-mentioned main body box by a supporting device so that it can be attached and detached freely to form a top plate assembly.

The heating cooker according to the second aspect of the present invention is characterized in that: the above-mentioned supporting device is a top plate supporting device, which has: a pressing part for pressing the outer peripheral edge of the above-mentioned top plate overlapping with the above-mentioned frame body, and the pressing part and the pressing part It is connected and provided, and can be installed on the above-mentioned frame body by using installation screws and can be freely attached and detached.

The heating cooker according to claim 3 of the present invention is characterized in that a sealing cushion is interposed between the outer peripheral edge of the top plate and the frame.

A heating cooker according to claim 4 of the present invention, comprising:

The main body box has an opening on it;

a plurality of heating coils arranged at opening positions in the main body box; and

a flat top plate, which is arranged on the main body box, is made of ceramic material,

It is characterized in that: a plurality of installation holes are formed on the outer peripheral edge of the above-mentioned top plate, the diameter of the installation holes is larger than the outer diameter of the installation screws, and the installation screws are inserted into the installation holes to make them in a state of free fit, thus , the outer peripheral edge of this top plate is screwed and fixed on the frame body that can be loaded onto the above-mentioned main body box.

The heating cooker according to claim 5 of the present invention is characterized in that a sealing cushion is interposed between the outer peripheral edge of the top plate and the frame.

The heating cooker according to claim 6 of the present invention is characterized in that an intermediate plate for closing the opening is attached and fixed to the upper surface of the main body case.

A heating cooker according to claim 7 of the present invention is characterized in that the intermediate plate is made of a ceramic material such as glass.

The heating cooker according to the eighth aspect of the present invention is characterized in that the structure of the above-mentioned intermediate plate includes: a shielding plate of conductive material having a plurality of opening windows for coils, and a shielding plate for closing each opening window for coils of the shielding plate. Sealing plates made of ceramic materials such as glass.

The heating cooker according to the ninth aspect of the present invention is characterized in that: a mounting flange is provided on the outer end of the frame of the above-mentioned top plate assembly, the length of which is longer than the thickness of the top plate assembly, and the mounting flange is placed on the on the stovetop.

The heating cooker according to claim 10 of the present invention is characterized in that the display unit is arranged at a position directly under the middle plate in the main body case.

Description of drawings

Fig. 1 is a cross-sectional view of a state in which a heating cooker according to a first embodiment of the present invention is mounted on a cooktop.

Fig. 2 is a perspective view of a state in which the heating cooker is attached to a cooktop.

Fig. 3 is a plan view showing the rear side of the housing of the heating cooker.

Fig. 4 is a perspective view showing a main part of the top plate assembly of the heating cooker.

Fig. 5 is a perspective view of a state in which the top plate assembly of the heating cooker according to the second embodiment is removed.

Fig. 6 is a sectional view taken along line A-A of Fig. 5 .

Fig. 7 is a sectional view of main parts showing a state in which the heating cooker is mounted on a cooker and the top plate assembly is removed.

Fig. 8 is a perspective view showing the structure of the middle plate of the heating cooker.

Fig. 9 is a sectional view taken along line B-B of Fig. 8 .

Fig. 10 is a perspective view of a top support tool of a top assembly of a heating cooker according to a third embodiment of the present invention.

Fig. 11 is a perspective view of a top plate support tool of a top plate assembly of a heating cooker according to a fourth embodiment of the present invention.

Fig. 12 is a perspective view of main parts of a top plate assembly of a heating cooker according to a fifth embodiment of the present invention.

Fig. 13 is a perspective view showing a top plate of the heating cooker.

Fig. 14 is a perspective view of main parts of a top plate assembly of a heating cooker according to a sixth embodiment of the present invention.

Fig. 15 is a perspective view of main parts of a top plate assembly of a heating cooker according to a seventh embodiment of the present invention.

Fig. 16 is a perspective view of main parts of a top plate assembly of a heating cooker according to an eighth embodiment of the present invention.

Fig. 17 is a perspective view of main parts of a top plate assembly of a heating cooker according to a ninth embodiment of the present invention.

Fig. 18 is a side sectional view of a conventional induction heating cooker.

Detailed ways

[first embodiment]

Fig. 1 is a cross-sectional view of a state in which a heating cooker according to a first embodiment of the present invention is mounted on a cooktop.

Fig. 2 is a perspective view of a state in which the heating cooker is attached to a cooktop.

Fig. 3 is a plan view showing the inner side of the housing of the heating cooker.

Fig. 4 is a perspective view showing important parts of the top plate assembly of the heating cooker.

In the figure, 1 is a heating cooker installed on the cooker 2, 3 is an upper main body box having an opening on the upper surface of the heating cooker 1, 4 is a lower main body box of the heating cooker 1, and 5 is an introduction of outside air. Roads, which are respectively arranged on the left and right sides of the rear side of the heating cooker 1, are used to introduce external air into the lower main body box 4. 6 is the suction cover that is arranged on the suction port of the external air introduction path 5, and 7 is the external air suction port, which is formed on the rear side of the lower main body box and communicates with the discharge port of the external air introduction path 5.

8 is an external air communication hole, which is formed on the bottom of the upper main body case 3 as a partition between the lower main body case 4 and the bottom of the main body case 3 . 9 is an external air discharge port formed on the front panel of the upper main body case 3 . 10 is an external air discharge port formed on the side plate of the lower main body case 4 .

11 is an oven, and its door 12 is arranged on the front side of the lower main body box 4; 13 is an air blower arranged on the rear side of the lower main body box 4; 14 is a power supply circuit board on which a transformer and various electrical parts are installed. Transformer is positioned at the middle of lower main body box 4.

15a, 15b are operation selector knobs for heating cookers and operation knobs for ovens, and their installation positions are on the front lower side of the oven 11;

17 is an output display part, which uses the lighting state of the lamp to indicate the power that is arranged directly under the glass plate, which is an intermediate plate described below, and is located in the upper main body case 3 . 18, temperature, timer display portion, it represents the time and the temperature that are arranged on the timer directly below the glass plate, and this glass plate is positioned at the middle plate below in the upper main body box 3.

21 is 3 coil supporting platforms respectively arranged in the upper main body box 3; 22 is the induction heating coil supported by each coil supporting platform 21, and the upper surface of the induction heating coil is on the same surface as the opening surface of the upper main body box 3 . 23 is a control circuit board on which control parts are mounted, and it is provided on the bottom of the upper main body case 3 .

24 is a horizontal roof assembly support portion, which is formed on the outer peripheral edge of the upper main body box 3 . 25 is a kind of buffer installation part, which is bent and extended from the support part 24 of the top plate assembly, and the outermost edge has a downward "U" shaped groove. Reference numeral 26 denotes a main body cushion fixed in the groove of the cushion mounting portion 25 with, for example, an adhesive. 27 is a transparent glass plate, which utilizes screws etc. (not shown) to be fixed on the inside of the top plate assembly supporting part 24 of the upper main body box 3, and is used to cover the opening of the upper main body box 3 as an intermediate plate, and the thickness of this plate is less than The top plate 30 is described below.

30 is made of ceramic material, is used to place the top plate of cooking pot. 31 is a square frame with a U-shaped section for supporting the top plate 30 . The dimension between the inner surfaces of the outer panels 31b of the frame body 31 is slightly larger than the dimension between the outer surfaces of the cushion pad mounting portion 25 of the upper main body box 22. As described below, when the top plate assembly 41 is fixed on the upper main body box 22, a small gap t2 is formed between the inner surface of the outer panel 31b of the frame body 31 and the outer surface of the cushion mounting part 25 of the upper main body box 22. Furthermore, the frame body 31 has a top plate window 32 that is slightly smaller than the outer shape of the top plate 30 .

33 is two outside air suction ports provided on one side of the frame body 31 . 34 is a door-shaped top plate receiving device, which is installed on the inner bottom of the frame body 31, and an appropriate interval is reserved. There are screw holes 35 on the upper floating plate portion 34a. 36 is a top plate supporting device, which consists of pressing pieces 36a and The fixing piece 36b is formed, and the fixing piece 36b has a screw hole 37, and is connected with the pressing piece 36a, and a step is formed between them, which is a device for supporting the top board. 38 is a mounting screw, and 39 is a frame-shaped sealing cushion, which is attached to the periphery of the inner surface of the inner plate 31a constituting the window 32 for the top plate of the frame body 31 by, for example, an adhesive. The height dimension of the sealing cushion 39 is larger than the height of the inner side plate 31 a of the frame body 31 .

The method of attaching the top plate 30 to the frame body 31 to form the top plate assembly 41 and installing the top plate assembly 41 in the upper main body box 3 will be described below.

First, as shown in FIG. 3 , the frame body 31 is turned over, the top plate 30 is placed on the inner side plate 31 a of the frame body 31 , and the top plate of the frame body 31 is sealed with the window 32 . At this time, the outer peripheral edge portion of the top plate 30 overlaps with a frame-shaped sealing cushion 39 attached to the inner periphery of the inner side plate 31 a of the frame body 31 .

Then, as shown in Figure 4, the top board receiving device 34 is installed on the inside bottom of the frame body 31, and the screw holes 37 of the fixing pieces 36b of each top board supporting device 36 are connected with the screws of the upper floating plate part 34a of the top board receiving device 34. The holes 35 are aligned, and the pressing piece 36a of each top support tool 36 is overlapped on the outer peripheral edge of the top plate 30 by the top plate protection cushion 40 formed of a soft material.

Then, the mounting screws 38 are inserted into the screw holes 37 of the fixing pieces 36b of each top board supporting device 36 and the screw holes 35 of the upper floating plate 34a of each top board receiving device 34 and tightened, so that the top board assembly 41 is assembled. The frame body 31 and the top plate 30 are integrated.

At this time, a predetermined gap t1 is set between the outer peripheral end surface of the top plate 30 and the steps of the pressing piece 36 a and the fixing piece 36 b of the top plate supporting tool 36 .

Then, the pressing piece 36 a of each roof support tool 36 of the roof assembly 41 assembled in this way is attached to the roof assembly support portion 24 of the upper main body box 3 . At this time, the inner surface of the outer plate 31b of the frame body 31 of the roof assembly 41 is drawn to the outside of the outermost cushion mounting portion 25 that is bent and extended from the roof assembly support portion 24. The gap t2 is kept small so that the roof assembly 41 can be correctly positioned and mounted on the roof assembly support portion 24 of the upper main body box 3 .

The top plate assembly 41 assembled in this way is assembled in the upper main body case 3, and the induction heating cooker 1 is comprised. And the induction heating cooker comprised in this way is attached to the cooktop 2 as shown in FIG.

Furthermore, the lower main body case 4 and the upper main body case 3 may be installed on the cooktop 2 in advance, and then the top plate assembly 41 may be installed in the upper main body case 3 .

Furthermore, the lower main body case 4 and the upper main body case 3 may be integrally formed.

In the induction heating cooker 1 constructed as described above, if the cooker operation knob 15a arranged on the lower front side of the oven 11 is operated, the power circuit board 14, the control circuit board 23, etc. start to work, and the high-frequency current supply is started. into the induction heating coil 22. When the high-frequency magnetic field generated by the induction heating coil 22 intersects with a cooking pot (not shown) placed on the top plate 30, the cooking pot is heated by induction. so. The cooking food that has been stored in the cooking pot is cooked.

And when the operation knob 15b for the oven is operated, the control circuit (not shown in the figure) starts to work and starts to supply current to the heater of the oven 11, the heater generates heat, and the cooking portion in the oven 11 performs heating and cooking.

Furthermore, in the process of using the induction heating cooker 1, the blower 13 is driven, and the external air entering the external air introduction path 5 through the suction cover 6 enters from the external air inlet 7 of the lower main body box 4. In the lower main body box 4, the power supply circuit board 14 and the oven 11 are cooled by the blower 13, and the external air enters the upper main body box 3 through the external air communication hole 8, and controls the control circuit board 23, the induction heating coil 22 and the output display. Part 16, temperature, and timer display part 17 are cooled, and then the outside air is discharged from the outside air outlets 9 and 10 of the upper main body case 3 to the outside.

If adopt the induction heating cooker of the 1st embodiment of the present invention like this, then top plate 30 is installed on the inner side plate 31a of frame body 31 turned over, the screw hole 37 of the fixed piece 36b of each top plate supporting utensil 36 is aimed at. Be installed on the screw hole 35 of the upper floating plate portion 34a of each top board receiving device 34 on the inner bottom of the frame body 31, make the pressing piece 36a of each top board supporting device 36 overlap to the top board 30 through the top board protection buffer pad 40 On the outer peripheral edge, insert the mounting screws 38 into the screw holes 37 of the top plate supporting devices 36 and the screw holes 35 of the respective top plate receiving devices 34 to tighten and fix them, so that the top plate assembly 41 integrating the top plate 30 is assembled on the frame body 31. The induction heating cooker 1 is constructed by attaching the pressers 36a of the top plate supporters 36 of the top plate assembly 41 to the top plate assembly support portion 24 of the upper main body box 3. Therefore, as long as the top board receiving device 34, the top board supporting device 36 and the mounting screws 38 are prepared, the top board assembly 4 integrating the top board 30 can be easily installed on the frame body 31, as long as the top board assembly 41 is mounted on The induction heating cooker 1 can be easily fabricated on the top plate assembly support portion 24 of the upper main body box 3 .

Furthermore, the top plate 30 is attached to the inner side plate 31 a of the frame body 31 , and the outer peripheral edge of the top plate 30 is pressed against the frame body 31 by the pressing piece 36 a of the top plate supporting tool 36 . At this time, because there is a sealing cushion 39 between the top plate 30 and the frame body 31, the frame body 31 will not damage the top plate 30, and there will be no gap between the top plate 30 and the frame body 31, so water and dust etc. will not enter and can make a good seal.

In addition, since there is a cushion pad 40 for protecting the top plate between the outer peripheral edge of the top plate 30 and the pressing piece 36a of the top plate supporting tool 36, the pressing piece 36a of the top plate supporting tool 36 will not damage the top plate 30.

Furthermore, the top plate 30 of the induction heating cooker 1 is hit by the cooking pot, or the tableware falls from the tableware shelf and falls on the top plate 30, causing cracks or cracks in the top plate. When repairing, replace the top plate 30. Suction hood 6 is dismantled from outside air inlet 5, and hands are stretched into outside air inlet 5 and top board assembly 41 is lifted, and top board assembly 41 can be taken off from upper main body box 3 easily. And, after the mounting screw 38 that fixes the top plate 30 and the frame body 31 of the top plate assembly 41 as a single body is loosened, the top plate 30 and the frame body 31 can be easily separated, so it is easy to replace the top plate 30. The monomers are also easy to recycle.

Furthermore, in the case of assembling the roof assembly 4 that has integrated the roof 30 onto the frame body 31 using the roof receiving tool 34, the roof supporting tool 36, and the mounting screws 38, because the outer peripheral end surface of the roof 30 and the roof support A predetermined gap t1 is set between the steps of the pressing piece 36a and the fixing piece 36b of the utensil 36, so a part of the top plate 30 is directly subjected to the high temperature of the cooking pot, and when the top plate 30 thermally expands, the outer peripheral edge of the top plate 30 Sliding on the pressing surface of the pressing piece 36a of the top plate support tool 36, its extension is equivalent to the size of the gap t1, so the stress generated by thermal expansion will not be concentrated on the fixed part of the pressing piece 36a of the top plate support tool 36, Therefore, cracks and fissures are not generated on the top plate 30, either. In particular, when a plurality of heating portions are formed, thermal expansion increases.

Furthermore, the opening of the upper body case 3 is covered by a transparent glass plate 27, which is an intermediate plate, the outer peripheral edge of which is fixed on the inner side of the top plate assembly support portion 24, on which the glass plate 27 The top plate 30 is provided, so even if the top plate 30 has cracks and cracks during the use of the induction heating cooker 1, the glass plate 27 can be used to prevent the intrusion of water etc. into the control circuit board etc. on live parts. Also, the glass plate may be a ceramic material made of glass or the like.

[Second embodiment]

Fig. 5 is a perspective view showing a state where the top plate assembly of the heating cooker according to the second embodiment of the present invention is removed.

Fig. 6 is a sectional view taken along line B-B of Fig. 5 .

Fig. 7 is a sectional view of main parts showing a state in which the heating cooker is attached to the cooker and the top plate assembly is detached.

Fig. 8 is a perspective view showing the structure of the middle plate of the heating cooker,

Fig. 9 is a sectional view taken along line C-C of Fig. 8 .

In the figure, the same symbols are attached to the same structures as those of the first embodiment of the present invention, and descriptions of the overlapping structures are omitted.

In the second embodiment, instead of the glass plate 27 of the first embodiment, the intermediate plate is composed of a blocking plate 45 made of a conductive material and a sealing plate 46 made of a non-magnetic material.

The blocking plate 45 has coil opening windows 47 having diameters slightly larger than the outer diameter of the induction heating coils 22 at corresponding positions above the three induction heating coils 22 arranged in the upper main body case 3 . These coil opening windows 47 have a downwardly bent portion 47a. These coil opening windows 47 are covered with a sealing plate 46 , and the outer peripheral portion of the sealing plate 46 is fixed to the shielding plate 45 with an adhesive or screws (not shown), for example.

In addition, in the second embodiment, the curved portion 47a of each coil opening window 47 of the shielding plate 45 is supported by the peripheral portion of the coil support stand 21, and is held in a sandwiched state.

In the second embodiment, the outer peripheral edge of the shielding plate 45 made of conductive material is mounted and fixed on the top plate assembly supporting part 24 of the upper main body box 3, and is in contact with it. Therefore, during the use of the induction heating cooker 1, , the heat of the heated shielding plate 45 is easily transferred to the upper main body case 3 .

Furthermore, since the sealing plate 46 is formed of a non-magnetic material, the magnetic flux of the induction heating coil 22 does not adversely affect the cooking pot placed on the top plate 30 thereon.

Furthermore, each coil opening window 47 of the blocking plate 45 formed of a conductive material is covered by the sealing plate 46 , and the blocking plate 45 and the sealing plate 46 together constitute an intermediate plate. The top plate 30 is provided on the middle plate, so even if cracks or cracks occur on the top plate 30 during the use of the induction heating cooker 1, the middle plate can be used to prevent water etc. from intruding into the upper main body case 3. In live parts such as control circuit boards.

[third embodiment]

Fig. 10 is a perspective view showing a top support tool of a top assembly of a heating cooker according to a third embodiment of the present invention.

This third embodiment differs from the first embodiment in the structure of the ceiling supporting device.

In the ceiling support tool 36 of the third embodiment, a projection 48 is provided at the lateral center of the pressing piece 36a.

Like this, utilize the protrusion 48 that is arranged on the lateral central place of pressing piece 36a to directly press the outer peripheral edge of top plate 30, can form and press the outer peripheral edge of top plate 30 with line contact state, make top plate 30 be easy to extend when thermal expansion, can prevent The top plate 30 develops cracks or fissures. The top plate support tool 36 is formed of a spring material, and the top plate 30 can be supported with an appropriate pressing force. prevent its damage.

[Fourth embodiment]

Fig. 11 is a perspective view showing a top support tool of a top assembly of a heating cooker according to a fourth embodiment of the present invention.

The structure of the roof supporting tool of this fourth embodiment is different from that of the first embodiment. There are 8 roof support devices 36 in the first embodiment corresponding to the 8 roof support devices 34, but the roof support device 56 in the fourth embodiment is shown in Fig. In order to press the entire outer periphery of the top plate 30 . Furthermore, screw holes 57 are provided at positions corresponding to the screw holes 35 of the top plate receiving tool 34 in the frame-shaped fixing portion 56b.

In this manner, the outer peripheral edge of the top plate 30 can be pressed evenly and firmly by the frame-shaped top plate support tool 56 .

[Fifth Embodiment]

Fig. 12 is a perspective view showing main parts of a top plate assembly of a heating cooker according to a fifth embodiment of the present invention. Fig. 13 is a perspective view showing a top plate of the heating cooker.

The fifth embodiment is different from the first embodiment in that the top board 30 is assembled directly without using the top board supporting device 36 for the top board receiving device 34 of the frame body 31 .

Appropriate intervals are reserved on the outer edge of the top plate 30, and 8 mounting holes 58 are set, and the diameter thereof is slightly larger than the thread diameter of the mounting screw 38. And, each mounting hole 58 of the top plate 30 is aligned with the screw hole 35 of the upper floating plate portion 34 a of each top plate receiving tool 34 . The mounting screws 38 are inserted into the screw holes 35 of the respective top plate receiving devices 34 through the top plate protection buffer pad 40 and the spring washer 59 to be tightened and fixed, and the top plate 30 is installed on the frame body 31 .

Like this, do not use top plate supporting device 36, utilize mounting screw 38 to directly install top plate 30 on the frame body 31, be arranged on the mounting hole 58 on the outer peripheral edge of top plate 30 slightly larger than the diameter of the screw thread portion of mounting screw 38, so top plate 30 During thermal expansion, the mounting thread 38 can be extended with a margin relative to the mounting hole 58 , and cracks or cracks can be prevented from occurring in the top plate 30 .

Furthermore, since the top plate 30 is directly mounted on the frame body 31 with the mounting screws 38 without using the top plate supporting device 36, only the mounting hole 58 of the top plate 30 needs to be drilled, which can also reduce the installation cost. .

In addition, in the case of directly fixing the top plate 30 to the frame body 31 with the mounting screws 38 . Between the outer peripheral edge of the top plate 30 and the frame body 31, a cushioning pad 39 for sealing is sandwiched, so the frame body 31 will not damage the top plate 30, and the seal between the top plate 30 and the frame body 31 is good, and there will be no damage. The gap allows the intrusion of water or ash, etc.

Furthermore, when the top plate 30 is directly fixed to the frame body 31 by the mounting screws 38, because there is a top plate protection buffer 40 between the heads of the mounting screws 39 and the outer peripheral edge of the top plate 30, the mounting screws 38 The head of the top plate 30 will not be damaged.

Moreover, the number of mounting screws 38 is not limited to 8, and can also be changed to an appropriate number as required.

[Sixth embodiment]

Fig. 14 is a perspective view showing main parts of a top plate assembly of a heating cooker according to a sixth embodiment of the present invention.

The sixth embodiment is different from the first embodiment in that instead of installing a frame-shaped sealing cushion 39 around the inner surface of the inner plate 31a of the top plate window 32 constituting the frame body 31, as shown in FIG. A tubular heat-resistant waterproof gasket 60 .

In this way, since a tubular heat-resistant waterproof gasket 60 is installed around the inner surface of the inner side plate of the window 32 constituting the top plate of the frame body 31, the waterproofing is made possible by the restoring force of the tube and the internal air expansion force. Reinforced, can prevent water and the like from intruding into the frame body 31, and can absorb vibration at the same time.

[Seventh embodiment]

Fig. 15 is a perspective view showing main parts of a top plate assembly of a heating cooker according to a seventh embodiment of the present invention.

The seventh embodiment is different from the first embodiment in that the top plate assembly 41 is directly mounted on the cooktop 2 .

In the seventh embodiment, a mounting flange 61 longer than the thickness of the top plate assembly 41 is provided on the outer plate 31b of a U-shaped square frame body 31 in cross section, and the front end of the mounting flange 61 is bent in the transverse direction. for installation.

In this way, on the outer panel 31b of the frame body 31, the installation flange 61 longer than the thickness of the top plate assembly 41 is provided through the cushion material 70, so the top plate 30 is mounted on the frame body 31 to form the top plate assembly 41. When mounted on the cooktop 2 , the mounting flange 61 provided on the outer plate 31 b of the frame body 31 is supported by the cooktop 2 . At this time, the top plate support tool 36 pressing piece 36a for mounting the top plate 30 on the frame floats upward from the top plate assembly supporting part 24 of the upper main body box 3, and is not integrally formed with the upper main body box 3, so it is easy to put The top plate assembly 41 is installed on the cooktop 2 .

[Eighth embodiment]

Fig. 16 is a perspective view showing main parts of a top plate assembly of a heating cooker according to an eighth embodiment of the present invention.

In the eighth embodiment, the light window hole 45a is arranged on the blocking plate 45 of the second embodiment, the lamp cover 62 is buried in the light window hole 45a, and the indicator light 63 of the output display part 17 is arranged in the lamp cover 62. .

In this way, the lamp cover 62 is embedded in the lamp window hole 45a which is located on the blocking plate 45 installed on the upper main body box 3, and the indicator light 63 is arranged in the lamp cover 62 to serve as an indication of an electrical component. The lamp 63 is arranged on the side of the blocking plate 45, and there is no electric part indicator light 63 and its wiring on the side of the top plate assembly 41. Therefore, removing the top plate assembly 41 with the top plate 30 from the upper main body box 3 will not make the charged part Exposure, therefore, is safe.

[Ninth embodiment]

Fig. 17 is a perspective view showing main parts of a top plate assembly of a heating cooker according to a ninth embodiment of the present invention.

In this ninth embodiment, a thin glass plate 64 is provided on the shielding plate 42 of the second embodiment, a lamp window 45a is provided on the shielding plate 45, and an indicator lamp 63 of the output display unit 17 is provided in the lamp window 45a. .

In this way, in the light window hole 45a on the shielding plate 45 covered by the thin glass plate 64 installed on the upper main body box 3, an indicator light 63 is provided, and an electric part indicator lamp 63 is arranged on the shielding plate 45 side. There is no electric part indicator light 63 and wiring thereof on the top plate assembly 41 side, so the top plate assembly 41 having the top plate 30 is removed from the upper main body box 3 without exposing live parts, so it is safe.

The state in which the induction heating cooker 1 according to the first to ninth embodiments of the present invention is installed in the cooktop 2 has been described. However, it goes without saying that the present invention can of course be applied to the form used on the stove 2 .

Moreover, the induction heating cooker 1 related to the embodiment of the present invention has been described according to the structure of using three induction heating coils 22, but one or two of the three induction heating coils 22 can also be used instead of resistance heating coils. , also can be applicable to the heating cooker that all change 3 induction heating coils 22 into resistance heating coils, simultaneously, 2 or 4 heating parts are also good, its quantity is not limited.

In addition, inclined surfaces and grooves are formed on the shielding plate 45 so that in case of intrusion of water, etc., it can be guided to a prescribed safe place, such as a place other than the main body box.

If adopt the 1st aspect of the present invention as above method, then utilize supporting device to be installed on the frame body that can be installed on the main body box that has opening portion above the outer peripheral edge of the flat top plate that is made of ceramic material etc. and make it It can be easily loaded and disassembled to form a roof assembly. Therefore, the effect is that the roof assembly that has integrated the roof can be easily assembled to the frame by using the support device, as long as the roof assembly is installed on the main body box. , can be made into a heating cooker very simply.

And, under the situation that cracks or cracks occur in the top plate and the top plate is replaced, since the support device installs the outer peripheral edge of the top plate on the frame body in a detachable state, it is easy to replace the top plate and the top plate by removing this supporting effect. The frame is separated. Therefore, there is also the effect that it is easy to replace the monolithic top plate, and it is also easy to perform recycling and separate parts of different materials.

According to the second aspect of the present invention, the supporting device for attaching the outer peripheral edge of the top plate to the frame in a detachable state is used as a top plate supporting device, and the top plate supporting device has:

a pressing part, which presses the outer peripheral edge of the top plate overlapping with the frame; and

The fixing part is connected with the pressing part, and is mounted on the frame in a detachable state through mounting screws,

Therefore, there is an effect that the supporting device can be formed by using a simple component structure of a ceiling supporting tool having a pressing portion and a fixing portion and mounting screws.

According to the third aspect of the present invention, when the top plate is supported in the frame by the top plate supporting device and the mounting screws, a cushioning pad for sealing is sandwiched between the outer peripheral edge of the top plate and the frame body, so the effect is Yes: When the outer peripheral edge of the top plate is pressed against the frame by the pressing part of the top plate supporting device, the frame will not damage the top plate, and there will be no gap between the top plate and the frame, and water and dust will not enter, and it will be sealed good.

If the fourth aspect of the present invention is adopted, a plurality of mounting holes are formed on the outer periphery of the top plate, the diameter of which is larger than the diameter of the mounting screw, and the mounting screw is inserted into the mounting hole in a free fit state, and the top plate The outer peripheral edge of the frame is screwed and fixed into the frame that can be installed on the main body box. Therefore, the effect is that the top plate can be extended by using the surplus of the mounting holes for the mounting screws during thermal expansion, which can prevent cracks or cracks in the top plate, and use Mounting screws directly attach the top plate to the frame, so only the mounting holes of the top plate need to be drilled, and the assembly cost can be reduced.

According to the fifth aspect of the present invention, when the top plate is fastened to the frame by means of mounting screws, a cushioning pad for sealing is sandwiched between the outer peripheral edge of the top plate and the frame, so the effect is that There will be no gap between the top plate and the frame body to cause water or dust to intrude, and the seal is good, and the frame body will not damage the top plate.

If the sixth aspect of the present invention is adopted, the middle plate for making the opening is installed and fixed on the above-mentioned main body box, so the effect is: even if cracks or cracks occur on the top plate during the use of the heating cooker, it can be used. The middle plate is used to prevent water and the like from intruding into the live parts such as the control circuit board installed in the main body box.

According to the seventh aspect of the present invention, the intermediate plate is made of ceramic material such as glass, so the output display unit and the temperature timing display unit can be arranged in the main body box.

The heating cooker related to the eighth aspect of the present invention is composed of a conductive blocking plate and a sealing plate, the former has a plurality of opening windows for coils; the latter is made of a non-magnetic material, and each coil of the blocking plate is formed on it. With the opening window, the outer peripheral edge of the shielding plate of conductive material is installed and fixed on the main body box, and is in contact with it, so, its effect is: the heat of the shielding plate heated during the use of the heating cooker is easy to transfer. On the main body box, and during the use of the heating cooker, even if cracks or cracks occur on the top plate, the blocking plate can be used to prevent water from intruding into the live parts such as the control circuit board arranged in the main body box.

In addition, since the sealing plate of the opening window for each coil of the shielding plate is made of a non-magnetic material, the magnetic flux of the induction heating coil will not adversely affect the cooking pot mounted on the top plate thereon.

According to the ninth aspect of the present invention, a mounting flange longer than the thickness of the top plate assembly is provided on the outer end of the frame of the above-mentioned top plate assembly, and the mounting flange is mounted on the stove. Therefore, The effect is that it is only necessary to put the mounting flange of the top plate assembly on the cooktop where the main body box is installed, and therefore, it is easy to manufacture a heating cooker, and it is easy to install it on the cooktop.

According to the tenth aspect of the present invention, the display part is provided at the position directly under the middle plate in the above-mentioned main body box, so the effect is that the electrical wiring can be eliminated on the top plate assembly, and the top plate assembly can be easily installed. It is also easy to remove from the main box.

Claims (12)

1. A heating cooker, comprising: The main body box has an opening on it; a plurality of heating coils arranged at opening positions in the main body box; and A flat top plate, which is arranged on the main body box, is made of ceramic material, It is characterized in that: the outer peripheral edge of the above-mentioned top board is mounted on the frame body which can be installed on the above-mentioned main body box by using the support device so that it can be assembled and disassembled freely to form a top board assembly. 2. The heating cooker according to claim 1, wherein the supporting device is a top plate supporting device, which has: a pressing part for pressing the outer peripheral edge of the above-mentioned top plate which overlaps with the above-mentioned frame body; The pressing part is provided in connection with and is detachably mounted to the fixing part of the above-mentioned frame by using a mounting screw. 3. The heating cooker according to claim 1 or 2, wherein a sealing cushion is interposed between the outer peripheral edge of the top plate and the frame. 4. A heating cooker, comprising: The main body box has an opening on it; a plurality of heating coils disposed at opening positions in the main body box; and flat top plate, which is configured on the main body box, made of ceramic material, It is characterized in that: a plurality of installation holes are formed on the outer periphery of the above-mentioned top plate, the diameter of the installation holes is larger than the outer diameter of the installation screws, and the installation screws are inserted into the installation holes to make them in the state of free fitting, Like this, the outer peripheral edge of this top board is screwed and fixed on the frame that can be installed on the above-mentioned main body box. 5. The heating cooker according to claim 4, wherein a cushioning material for sealing is interposed between the outer peripheral edge of the top plate and the frame. 6. The heating cooker according to any one of claims 1 or 4, wherein an intermediate plate for closing the opening is attached and fixed to the upper surface of the main body case. 7. The heating cooker as claimed in claim 6, wherein said middle plate is made of glass material. 8. The heating cooker according to claim 6, wherein the structure of the intermediate plate includes: a shielding plate of conductive material having a plurality of opening windows for coils, and closing each coil opening window of the shielding plate. A sealing plate made of glass material. 9. The heating cooker according to claim 1 or 4, characterized in that: a mounting flange is provided on the outer end of the frame of the above-mentioned top plate assembly, the length of which is greater than the thickness of the top plate assembly, and the installation flange The flange is placed on the hob. 10. The heating cooker according to claim 6, wherein the display unit is disposed at a position directly under the middle plate in the main body case. 11. The heating cooker according to claim 7 or 8, wherein the display unit is arranged at a position directly under the middle plate in the main body case. 12. The heating cooker according to claim 9, wherein the display unit is arranged at a position directly under the middle plate in the main body case.

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