JP2010203646A - Heating cooker - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a heating cooker capable of saving a space around an electric power switch, simplifying an operating part and securely mounting the electric power switch to a body and having excellent design performance. <P>SOLUTION: The electric power switch 28 turned on/off by pressing operation is provided in the heating cooker for heating a heated cooking appliance storing foodstuff. The electric power switch 28 includes a contact 48 for conducting or blocking between at least two terminals 52, a housing 38 storing the contact 48, and a button 44 mounted to the housing 38 so as to be liftable/lowerable and applying pressing force during the pressing operation. A light emitting device 46 is stored in the housing 38, and a light transmission window part 86 for displaying the conducting state to the body by lighting of light is formed on the button 44. A waterproof projection 82 is formed on the outer face of the button 44, and a wall 92 for surrounding the electric power switch 28 is formed in an electric power switch mounting part 32b. A distal end part of the wall 92 is proximately arranged to oppose to the waterproof projection 82. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a built-in or stationary heating cooker used in a general household kitchen or a commercial kitchen.

  In a conventional cooking device, a plurality of switches such as a power switch and a heating power adjustment switch and a display unit are provided on an operation unit having an operation surface on the front surface. In this cooking device, the energization state of the power switch is indicated by lighting of an energization display lamp provided in the vicinity of the power switch (see, for example, Patent Document 1).

JP-A-8-321968

  However, in the configuration described in Patent Document 1, it is difficult to drastically reduce the space occupied by the power switch and the display unit indicating the energized state, and there is a limit to the elimination of the complexity of the operation unit and the display unit. .

  Some of the power switches that light up the entire button are also used in industrial equipment, etc., but the light is so conspicuous that it is difficult to settle down. Nowadays, there is also a difficulty in terms of design.

  Furthermore, since a part of a conventionally known seesaw switch that is frequently used as a power switch always protrudes from the main body, if a part of the user's body unintentionally touches the power switch, the power is switched from ON to OFF. Or, there is a risk of switching from OFF to ON. In order to solve this problem, it is conceivable to adopt a push switch as a power switch, but in the case of a configuration in which the push switch is attached to the main body by fitting the convex portion and the concave portion without using a fastening means such as a screw, There is a problem that the push switch is easily detached due to the backlash of the push switch.

  The present invention has been made in view of the above-described problems of the prior art, and can save space around the power switch and simplify the operation section, and securely attach the power switch to the main body. The object is to provide a cooking device that can be designed and has excellent design.

  In order to achieve the above object, the present invention is a heating cooker for heating a heated cooking utensil containing ingredients, and a main body and a cooking utensil provided on the top surface of the main body are placed thereon. A heating plate provided below the top plate, a power supply circuit for supplying power to the heating device, and a power switch for connecting or cutting off the power supply from an external power source to the main body, An ON-OFF operation of the power switch is a pressing operation, and the power switch is connected to the at least two first terminals or disconnected, a housing that accommodates the contact, and a press that is attached to the housing so as to be movable up and down. A light-transmitting element formed on the button by turning on the light-emitting element. Displayed through a window and forming a waterproof protrusion on the outer surface of the button, while a power switch mounting portion formed on the main body to which the power switch is mounted has a wall portion surrounding the power switch. The front end of the wall portion is disposed close to the waterproof projecting portion.

  According to the heating cooker according to the present invention, the light transmitting window portion which is the display portion in the energized state is provided in the button portion of the power switch, and the light emitting element for emitting the display portion is disposed in the power switch. Space saving and simplification around the switch can be achieved, and the design is excellent. In addition, the wall portion surrounding the power switch is provided in the power switch mounting portion, and the tip of the wall portion is disposed close to the waterproof projecting portion formed on the outer surface of the button, so the backlash of the power switch is reduced. The power switch can be prevented from coming off from the power switch mounting portion.

  1st invention is a heating cooker for heating the to-be-heated cooking utensil which put the foodstuff, Comprising: The main body, the top plate which mounts the to-be-heated cooking utensil provided in the top | upper surface of the main body, and the top plate Heating means provided below, a power supply circuit for supplying power to the heating means, and a power switch for connecting or cutting off the power supply from the external power supply to the main body, and pressing the ON / OFF operation of the power switch The power switch includes a contact for conducting or blocking between the at least two first terminals, a housing that accommodates the contact, and a button that is attached to the housing so as to be movable up and down and applies a pressing force during a pressing operation. A light-emitting element is housed, and the energization state of the main body is displayed through a light-transmitting window formed on the button by turning on the light-emitting element, and a waterproof protrusion is formed on the outer surface of the button. Has a wall power switch mounting unit power switch formed in the body is mounted to surround the power switch is obtained by closely arranged to face the front end portion of the wall portion in the waterproof protrusion.

  With this configuration, space saving and simplification around the power switch can be achieved, and an operation unit with excellent design can be realized. In addition, the waterproof projection of the button is placed in close proximity to the wall around the power switch mounting part, reducing the power switch backlash and preventing the power switch from coming off the power switch mounting part. You can also

  The second invention further includes an operation unit attached to the main body and having a plurality of operation keys, and a unit housing for holding the operation unit and the power switch, and the unit housing is disposed in front of the opening formed on the front surface of the main body. Since it is attached more, the degree of freedom of the assembly timing of the power switch unit in the product assembly process is increased, and the assembly workability is improved because it is fitted from the outside.

  According to a third aspect of the present invention, there is further provided a decorative plate having an opening portion that is attached to the main body and into which the button is loosely inserted, and the opening portion of the decorative plate is set smaller than the outer shape of the projecting portion for waterproofing. Since the peripheral edge is placed just before the waterproof projection, even if the power switch gets wet or water flows from the top of the main unit, water penetration into the back of the power switch is waterproof. This can be prevented by the protruding portion. In addition, since only the pressing operation surface of the button is visible on the appearance, the design is improved.

  According to the fourth aspect of the present invention, since the water guide groove is formed on the side of the waterproof projecting portion facing the peripheral edge of the opening of the decorative plate, the water flowing to the power switch flows down along the water guide groove. Does not adversely affect the power switch or other electrical components.

  In the fifth aspect of the invention, the button has an upper wall portion, left and right side wall portions, and a lower wall portion, and the water flowing into the power switch is formed by forming a water guide groove on the upper wall portion and the left and right side wall portions. It surely flows down along the water guide groove.

  6th invention can apply the heating cooker which concerns on this invention also to an induction heating cooking appliance by employ | adopting the induction heating coil which generate | occur | produces an alternating magnetic field and heats a to-be-heated cooking appliance as a heating means. .

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. However, the present invention is not limited to the embodiments.

  FIG. 1: has shown schematic structure of the induction heating cooking appliance which is an example of the heating cooking appliance concerning this invention. The induction heating cooker has its main body 2 dropped into the opening provided on the top surface of the kitchen cabinet, for example, and incorporated.

  As shown in FIG. 1, the top surface of the main body 2 is provided with a top plate 4 on which to-be-heated cooking utensils such as pans are placed, and the top plate 4 is made of a material such as high heat resistant glass that is not overheated by electromagnetic induction. It consists of In addition, a plurality of heating portions 4a, 4b, and 4c for placing the cooked utensils containing ingredients are formed on the top plate 4 by printing. The outer periphery of the top plate 4 is surrounded by a top frame 6, and the top frame 6 forms the upper surface of the main body 2 together with the top plate 4. In addition, an upper surface operation unit 7 having a plurality of operation keys is provided in front of the top plate 4.

  Below the top plate 4, a plurality of induction heating coils 8 as heating means are provided at predetermined intervals, and each induction heating coil 8 is held at a predetermined position in the main body 2 by a coil base 10. . The induction heating coil 8 is supplied with high frequency power by a power supply circuit 12 provided inside the main body 2, and the induction heating coil 8 and the power supply circuit 12 are cooled by a cooling fan 14 disposed at the rear part of the main body 2. . In addition, a grill (not shown) is provided on the side of the power supply circuit 12 for putting a cooked object such as raw fish and grilling, and an opening for opening and closing the cooked object at the front of the grill. A door 16 is attached.

  Furthermore, the coil base 10 is disposed in the vicinity of the infrared sensor 18 as a temperature sensor that receives infrared rays radiated from the cooked utensils and measures the temperature of the cooked utensils, and is heated. A light emitter (not shown) that emits light for visually recognizing the placement position of the cooking utensil is provided.

  An operation unit 20 is provided below the front part of the top plate 4. The operation unit 20 includes an output unit for displaying the operation state of the device and a signal input unit for controlling the operation of the device by external operation. The control circuit 22 having the above and the like is housed in the cover 24.

  Further, a front operation unit 26 having a plurality of operation keys is provided on the front surface of the main body 2, and the power supply from the external power source to the main body 2 is connected or cut off above the front operation unit 26. A power switch 28 (see FIG. 2) is attached.

  As shown in FIGS. 1 and 2, the front operation unit 26 is configured to be able to appear and retract with respect to the main body 2, and is rotated forward by pressing the upper part of the decorative board 30 attached to the front operation unit 26. Then, an operation surface provided with a plurality of operation keys appears.

  When a food is put into a heated cooking appliance and cooked with an induction heating cooker, the heated cooking appliance is placed on any heating part 4a, 4b, 4c of the top 4 and the power switch 28 is pressed to operate the top surface. When the heating start is instructed by operating the unit 7 or the front operation unit 26, the power supply circuit 12 supplies a high-frequency current to the heating coil 8 via an inverter power supply (not shown). When a high frequency current is supplied to the heating coil 8, the heating coil 8 generates an alternating magnetic field, and the cooked utensil is induction-heated to increase its temperature.

  2 and 3 show the front operation unit 26 and the power switch 28. The front operation unit 26 and the power switch 28 are attached to a unit housing 32 held by the main body 2 as one unit (power switch unit). ing. The unit housing 32 is formed with a front operation section accommodating space 32a for retracting and accommodating the front operation section 26, and a power switch for attaching a power switch 28 above the front operation section accommodating space 32a. A mounting portion 32b is provided.

  The unit housing 32 is attached from the front to an opening (not shown) formed on the front surface of the main body 2. At the time of attachment, the front operation unit 26 and the power switch 28 are first attached to the unit housing 32. A decorative plate 30 is attached to the slab. A decoration plate 36 is attached above the decoration plate 30 via an attachment frame 34.

  Next, the configuration of the power switch 28 will be described with reference to FIGS. 4 to 7. In the following description regarding the power switch 28, terms indicating the direction such as “up” and “down” are only the power switch 28. Is used when arranged as shown in FIG.

  As shown in FIGS. 4 to 7, the power switch 28 includes a substantially rectangular parallelepiped switch housing (hereinafter simply referred to as “housing”) 38, a base 40 fixed to the inside of the bottom of the housing 38, and ascending / descending to the housing 38. A plunger 42 that is freely attached and a button 44 that is attached to the top of the plunger 42 are provided.

  The base 40 has a light emitting element 46 and a contact 48 such as an LED attached adjacent to the upper surface thereof, two terminals 50 connected to the light emitting element 46 and extending from the back surface of the base 40 to the outside, and a base connected to the contact 48. And three terminals 52 extending outward from the back surface of 40. These five terminals 50 and 52 are fixed to the base 40 with an adhesive.

  Of the three terminals 52, one terminal (the left terminal in FIG. 6) 52 is always connected to one end of the contact 48, and the other two terminals 52 are selectively connected to the other end of the contact 48. . In the present embodiment, the power ON / OFF operation is performed using two of the three terminals 52 (left and center terminals in FIG. 6) 52. These five terminals 50 and 52 are arranged in a straight line.

  The contact 48 is attached with a tension spring 54 for applying contact pressure.

  The contact 48 is surrounded by a waterproof wall 56 integrally formed with the base 40 so as to protrude upward from the upper surface of the base 40, and the light emitting element 46 and the contact 48 arranged adjacent to each other are separated by the waterproof wall 56. Has been. Further, the upper end surface of the waterproof wall 56 is located above the contact 48.

  As shown in FIGS. 4 and 5, the housing 38 has four side walls, and two locking holes 58 are formed in the lower portions of the two opposing long side walls 38a. The base 40 is fixed to the inside of the bottom of the housing 38 by fitting the two protrusions 60 formed on the end surface on the long side of the base 40 into the locking holes 58.

  Each of the short side walls 38b of the housing 38 is integrally formed with a curved attachment piece 62 extending upward from the lower portion thereof. The mounting piece 62 is curved in a convex shape toward the outside, and a notch 62a is formed on the outer surface of the upper part. Further, a flange portion 64 is formed on the entire upper portion of the housing 38, and the lower surface of the flange portion 64 is separated from the upper end portion of the attachment piece 62 by a predetermined length.

  As shown in FIG. 6, a locking projection 66 for locking the plunger 42 is formed on the inner surface of each short side wall 38b of the housing 38, and its upper surface is an inclined surface. .

  On the other hand, as shown in FIGS. 6 and 7, the plunger 42 accommodated in the housing 38 so as to be movable up and down has four side walls and an upper wall, and is provided at the lower end of the two opposing short side walls 42 a. Is formed with a locking projection 68 that fits with the locking projection 66 of the housing 38, and its lower surface is an inclined surface. Further, a locking projection 70 for locking the button 44 is formed above the locking projection 68, and its upper surface is an inclined surface.

  The upper wall of the plunger 42 is formed with a contact pressing portion 72 that hangs downward from the inner surface thereof. The contact pressing portion 72 is loosely inserted into a pressing portion guide 73 formed in the housing 38 to move up and down. In operation, the contact pressing portion 72 is guided by the pressing portion guide 73. Further, on the side surface of the contact pressing portion 72 above the light emitting element 46, a light guide member holding convex portion 76 for holding a light guide member 74 formed of a substantially columnar material that transmits light is formed. A light guide member holding notch 78 is formed at the upper end portion of the short side wall facing the light guide member holding convex portion 76.

  Similarly to the plunger 42, the button 44 has four side walls and an upper wall, and a locking hole 80 is formed in the lower part of the opposing two short side walls 44 a. The button 44 is fixed to the plunger 42 by fitting the locking projection 70 of the plunger 42.

  Further, projecting portions 82 are formed on the outer surfaces of the four side walls of the button 44 so as to project outward, and one projecting portion 82 on one long side wall and two short side walls. The projecting portion 82 is formed with a water guide groove 84 that opens upward. In addition, one long side side wall in which the water guide groove 84 is formed is a side wall (upper wall portion) located above when the power switch 28 is attached to the main body 2 as shown in FIG. The water guide groove is not formed on the side wall (lower wall portion) located below (see FIG. 7).

  A rectangular opening (light transmission window) 86 is formed at the end of the upper wall of the button 44 (the left end in FIG. 6), and the light guide member 74 disposed along the upper wall includes: A lens portion that is held by the light guide member holding convex portion 76 and the light guide member holding notch 78 of the plunger 42 and formed in a part of the light guide member 74 is fitted into the opening 86.

  A plurality of compression springs (not shown) are provided between the base 40 and the plunger 42, and the plunger 42 and the button 44 are integrally biased upward by the elastic force of the compression spring.

  When the power switch 28 is assembled, when the base 40 is fitted into the housing 38 from below with the light emitting element 46 facing upward, the protrusion 60 of the base 40 is fitted into the locking hole 58 of the housing 38, and the base 40 is 38. Further, when the plunger 42 to which the light guide member 74 is attached is fitted into the button 44 from below, the locking projection 70 of the plunger 42 is fitted into the locking hole 80 of the button 44, and the button 44 is held by the plunger 42.

  Next, when a plurality of compression springs are arranged at predetermined positions of the base 40 and the plunger 42 is fitted into the housing 38 from above, the locking projection 68 of the plunger 42 is fitted with the locking projection 66 of the housing 38, and the plunger 42 is held in the housing 38 while being biased upward by the elastic force of the compression spring.

  As shown in FIGS. 2 and 3, the assembled power switch 28 is attached to a power switch mounting portion 32 b of the unit housing 32, and a decorative plate 36 is further attached via a mounting frame 34. Further, the front operation unit 26 is attached to the front operation unit accommodating space 32a of the unit housing 32, and after the unit housing 32 in which the front operation unit 26 and the power switch 28 are assembled is attached to a predetermined part of the main body 2, Terminals 50 and 52 of the power switch 28 are connected to a connector 88 connected to a substrate (not shown) inside the main body 2.

  FIG. 8 shows the power switch mounting portion 32b of the main body 2 to which the power switch 28 is mounted.

  As shown in FIGS. 2 and 8, the power switch mounting portion 32 b has a wall portion surrounding the power switch 28, and the wall portion is formed from the bottom wall portion 90 and the left and right end portions of the bottom wall portion 90. It is composed of two opposing side wall portions 92 erected upward and an upper wall portion 94 that connects the upper end portions of the two side wall portions 92. Inside the power switch mounting portion 32b, a switch mounting rib 96 having a rectangular opening 96a is formed integrally with the surrounding wall portions 90, 92, 94.

  The width of the opening 96a of the switch mounting rib 96 is set to be shorter than the distance between the outer end surfaces of the left and right flanges 64 of the switch housing 38. The height (length in the vertical direction) of the opening 96a is The distance is set shorter than the distance between the outer end surfaces of the upper and lower flange portions 64 of the switch housing 38.

  Further, the distance between the inner surfaces of the two opposing side wall portions 92 is the distance between the outer end surfaces of the left and right flange portions 64 of the switch housing 38 and the projecting portion formed on the two short side walls of the button 44. 82 is set to be slightly longer than the distance between the outer end surfaces of 82, and the distance between the inner surfaces of the opposed bottom wall portion 90 and the upper wall portion 94 is the distance between the outer end surfaces of the upper and lower flange portions 64 of the switch housing 38, And it is set slightly longer than the distance between the outer end surfaces of the projecting portion 82 formed on the two long side walls of the button 44. Therefore, between the four wall portions 90, 92, 94 of the power switch mounting portion 32b and the flange portion 64 of the switch housing 38, or between the four wall portions 90, 92, 94 of the power switch mounting portion 32b and the button 44. A predetermined clearance (for example, about 0.5 mm) is provided between the protruding portion 82.

  Further, the length from the rear surface of the switch mounting rib 96 to the front end surface of each side wall 92 is from the rear edge of the notch 62a formed in the mounting piece 62 of the housing 38 to the rear surface of the protruding portion 82 of the button 44. Is set shorter than the length from the rear edge of the notch 62a to the front surface of the projecting portion 82, and the front end portions (front end portions) of the wall portions 90, 92, and 94 of the power switch mounting portion 32b are formed. The projections 82 are arranged close to each other so as to face the outside, and a predetermined clearance is provided between the leading ends of the wall portions 90, 92, 94 and the projections 82.

  When the power switch 28 is attached to the power switch mounting portion 32b, when the power switch 28 is fitted into the opening 96a of the switch mounting rib 96, the mounting piece 62 formed on the housing 38 of the power switch 28 faces inward. Due to the elastic deformation, the rear surface of the flange portion 64 of the housing 38 comes into contact with the front surface of the switch mounting rib 96, and the switch mounting rib 96 is locked to the notch 62a of the mounting piece 62. It is held by the attachment portion 32b.

  After the power switch 28 is attached to the power switch attachment portion 32b, the attachment frame 34 and the decoration plate 36 are attached to the main body 2. The attachment frame 34 and the decoration plate 36 have rectangular openings 34a, 36a is formed, the width of the openings 34a, 36a is set slightly longer than the width of the button 44, and the height (length in the vertical direction) of the openings 34a, 36a is It is set slightly longer than the height.

  Further, the opening 36 a of the decorative plate 36 is smaller than the outer shape of the protruding portion 82 of the button 44, and when the attachment frame 34 and the decorative plate 36 are attached to the main body 2, the peripheral portion of the opening 36 a of the decorative plate 36 is the button 44. The size of the button 44 is set so as to be located immediately before the protruding portion 82, and the front surface of the button 44 is set to be substantially flush with the front surface of the decorative plate 36.

  FIG. 9 shows a modification of the light guide member 74, and the light guide member 74 </ b> A extends from the upper wall portion of the button 44 toward the light emitting element 46, and is light guide member compared to the light guide member 74 described above. The light incident surface of 74 </ b> A (the surface facing the light emitting element 46) is disposed close to the light emitting element 46. In the case of this configuration, it is preferable to set the size of the light incident surface of the light guide member 74A to be larger than the light emission area from the light emitting element 46 on the light incident surface. Most of the light emitted from the light emitting element 46 can be guided to the opening 86 of the button 44 by the light guide member 74A.

  Next, the operation of the power switch 28 having the above configuration will be described.

  The power switch 28 attached to the main body 2 resists the urging force of the compression spring when the heated cooking utensil containing the food is placed on any heating unit 4a, 4b, 4c to heat the food. Then, one end of the contact 48 connected to one of the terminals 52 (the terminal on the left side in FIG. 6) is pushed backward by the contact pressing portion 72, and the contact 48 is deformed. As a result, the other end of the contact 48 is brought into pressure contact with another one of the terminals 52 (the terminal at the center of FIG. 6), and the two terminals 52 are turned on to turn on the power (turned on). . Thereafter, when the pressing force to the button 44 is released, the button 44 returns to the original position (initial position) by the elastic force of the compression spring.

  The power switch 28 is a so-called momentary type (bounce type) in which the contact is switched only while the button 44 is kept pressed.

  In addition, when the power is on, the light emitting element 46 is turned on, and the light emitted from the light emitting element 46 is collected by the light guide member 74 disposed in front of the light emitting element 46, and is formed in the opening 86 of the button 44. Since it radiates | emits to the main body front side via the inserted lens part, the user can visually recognize the ON (energization) state of a power supply with the light radiate | emitted from the lens part.

  When the heating of the food is finished and the power is turned off, when the button 44 is pressed again against the urging force of the compression spring, the contact 48 performs the same operation as when the power is turned on, and the power is turned off. Become. When the power is off, the light emitting element 46 is turned off.

  As described above, the light guide member 74 acts to improve the light collection efficiency. Therefore, even if the light emitting element 46 with low luminance (long life) is used, the light transmission window portion 86 of the button 44 supplies power. The ON state of can be easily visually confirmed.

  Further, in the case of the conventional configuration in which the switch is provided on the board, the position of the board is inevitably determined by the mounting position of the switch, and the degree of freedom of the mounting position of the board is extremely limited. In the case of a heating cooker, since the connection between the power switch 28 and the board is performed via the connector 88, the mounting position of the board is not restricted, and therefore the power switch unit can be simplified.

  In addition, the seesaw switch that has been used as a power switch has a portion protruding forward from the front of the main body regardless of the ON-OFF operation. If a part of the user who passes in front of the user accidentally touches the power switch, the power may be switched from ON to OFF or from OFF to ON. However, since the operation of the power switch 28 employed in the heating cooker according to the present invention is a pressing operation, setting the front surface of the power switch 28 to be substantially flush with the front surface of the decoration plate 36 can cause an erroneous operation. Not only can it be prevented, it is also excellent in design.

  Further, when the power switch 28 is attached to the main body 2, the outer end surface of the projecting portion 82 is disposed close to the wall portion around the power switch attachment portion 32 b, so that the backlash of the power switch 28 is reduced. As much as possible, the power switch 28 can be prevented from coming off from the power switch mounting portion 32b.

  In addition, when the power switch 28 is attached to the main body 2, the decorative plate 36 is dimensioned so as to be positioned immediately before the projecting portion 82 of the button 44, and the upper and left projecting portions 82 have a water guide groove 84. Therefore, even if water is applied to the power switch 28 or water flows from the upper part of the main body 2, the intrusion of water into the back of the power switch 28 is prevented by the protruding portion 82. The Further, since the water flowing into the power switch 28 flows down along the water guide groove 84, the power switch 28 or other electric parts are not adversely affected. That is, the protruding portion 82 in which the water guide groove 84 is formed acts as a waterproof protruding portion.

  Furthermore, even if water enters the inside of the power switch 28, the contact 48 is surrounded by the waterproof wall 56, so that the contact 48 or the terminal 52 and the like are not wetted with water, and an unexpected short circuit can be prevented. it can.

  In addition, although embodiment mentioned above demonstrated taking the induction heating cooker as an example, this invention is not limited to an induction heating cooker, The other heating cooker which receives the supply of electric power from the outside and cooks It can also be applied to.

  The power switch 28 employed in the present embodiment is of a momentary type, but a so-called lock type switch in which the button position changes depending on whether the switch is on or off can also be employed.

  The cooking device according to the present invention can save space around the power switch and eliminate the complexity of the operation unit, is excellent in design, and can be securely attached to the main body. It can be applied to all heating cooking machines that cook using

The disassembled perspective view which shows schematic structure of the heating cooker which concerns on this invention The partial exploded perspective view of the power switch unit provided in the heating cooker of FIG. 2 is an exploded perspective view of the power switch unit of FIG. The perspective view of the power switch provided in the power switch unit of FIG. 4 is another perspective view of the power switch of FIG. Sectional view along line AA in FIG. Sectional view along line BB in FIG. 4 is a partial horizontal sectional view showing a state where the power switch of FIG. 4 is attached to the heating cooker of FIG. Sectional drawing which shows the modification of the light guide member provided in the inside of the power switch of FIG.

2 body, 4 top plate, 4a, 4b, 4c heating unit, 6 top frame,
7 upper surface operation section, 8 heating coil, 10 coil base, 12 power supply circuit,
14 cooling fan, 16 grill opening / closing door, 18 infrared sensor,
20 operation unit, 22 control circuit, 24 cover, 26 front operation unit,
28 Power switch, 30 Decorative plate, 32 Unit housing,
32a Front operation part accommodating space, 32b Power switch mounting part, 34 Mounting frame,
36 decorative plate, 38 switch housing, 38a, 38b side wall,
40 base, 42 plunger, 44 button, 44a short side wall,
46 light emitting elements, 48 contacts, 50, 52 terminals, 54 tension springs,
56 waterproof wall, 58 locking hole, 60 protrusion, 62 mounting piece, 62a notch,
64 hooks, 66 locking projections, 68 locking projections, 70 locking projections,
72 contact pressing part, 73 pressing part guide, 74, 74A light guide member,
76 convex portions for holding the light guide member, 78 notches for holding the light guide member, 80 locking holes,
82 projecting portion, 84 water guide groove, 86 opening portion, 88 connector, 90 bottom wall portion,
92 side wall, 94 upper wall, 96 switch mounting rib, 96a opening.

Claims (6)

A heating cooker for heating a cooked utensil containing ingredients,
A main body, a top plate provided on the top surface of the main body on which the cooked utensil is placed, a heating means provided below the top plate, a power supply circuit for supplying power to the heating means, and an external power source A power switch for connecting or cutting off the power supply to the main body from
An ON-OFF operation of the power switch is a pressing operation, and the power switch is connected to the at least two first terminals or disconnected, a housing that accommodates the contact, and a press that is attached to the housing so as to be movable up and down. A button for applying a pressing force during operation, the light emitting element is accommodated in the housing, and the energization state of the main body is displayed through a light transmission window formed on the button by turning on the light emitting element. The power switch mounting portion formed on the main body to which the power switch is mounted has a wall portion surrounding the power switch, and the tip of the wall portion is formed with a waterproof projecting portion formed on the outer surface of the button A heating cooker characterized in that a portion is arranged in close proximity to the waterproof projecting portion. An operation unit attached to the main body and having a plurality of operation keys, and a unit housing for holding the operation unit and the power switch are further provided, and the unit housing is inserted into the opening formed on the front surface of the main body from the front. The cooking device according to claim 1, wherein the cooking device is attached. A decorative plate attached to the main body and having an opening into which the button is loosely inserted, the opening of the decorative plate being set smaller than the outer shape of the waterproof projecting portion, and the periphery of the opening of the decorative plate The cooking device according to claim 1 or 2, wherein a portion is disposed immediately before the waterproof protruding portion. The heating cooker according to claim 3, wherein a water guide groove is formed on a side of the waterproof projecting portion facing the peripheral edge of the opening of the decorative plate. 5. The button according to claim 4, wherein the button includes an upper wall portion, left and right side wall portions, and a lower wall portion, and the water guide groove is formed in the upper wall portion and the left and right side wall portions. Cooking device. The heating cooking according to any one of claims 1 to 5, wherein the heating means is an induction heating coil that generates an alternating magnetic field to heat the cooked utensil, and the heating cooker is an induction heating cooker. vessel.

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