JP4311422B2 - Induction heating cooker - Google Patents

Description

  The present invention relates to an induction heating cooker used in general households.

Conventionally, this type of induction heating cooker has a resin outer shell with a top plate, a resin outer shell combined with the outer shell to form a main body, and an air inlet and an air outlet provided in the lower shell. In addition, a printed circuit board and a cooling fan provided in the lower part of the outer shell are provided, and a blower rib is provided in the main body in order to send the wind of the cooling fan 7 toward the printed circuit board as a cooling component. Moreover, the induction heating coil was provided in the back surface of the top plate (for example, refer patent document 1).
JP-A-8-64355

  However, in the conventional configuration, there is a problem that the temperature of the air blown from the exhaust port varies greatly depending on the position of the exhaust port, and high-temperature wind blows out from some exhaust ports and becomes uncomfortable in the vicinity. It was.

  This invention solves the said conventional subject, and it aims at providing the induction heating cooking appliance which eliminates the blowing of a high temperature wind with the ventilation blown out from the exhaust port of a main body, and eliminates discomfort.

In order to solve the above-described conventional problems, an induction heating cooker according to the present invention comprises a top plate, a resin main body with the top plate attached to the top, and the main body upper portion to form a main body outline. and lower body made of resin, and the induction heating coil provided below the top plate, the main body is provided in the lower portion, the inlet及 beauty plurality of open hole in formed exhaust port, drive provided in the main body bottom a printed circuit board that constitutes the electric circuit in which a current flows in the induction heating coil to be, from the outside air is provided before Ki吸 air opening neighborhood and sucked into the main body to blow air diverted into the body the exhaust port, fever It provided with a cooling fan for blowing temperature elevated wind outside the body to the parts and heat exchange with the said exhaust port, an exhaust port a wind flowing over the heating coil reaches the exhaust port a Located on both sides of the
An exhaust port B and an exhaust port C through which wind that does not flow over the heat coil arrives, and a part of the wind that flows over the heating coil and reaches the exhaust port A is the exhaust port B and the exhaust gas The above-mentioned opening hole constituting the exhaust port A has a smaller area than the opening holes forming the exhaust port B and the exhaust port C so as to be diverted to the port C.

Thereby, the cooling blower flowing over induction heating coils in the air from the fan becomes high temperature, but it an induction heating coil blowing outlet A to provided so as to be positioned between the cooling fan, wherein By making the area of the opening hole that constitutes the exhaust port A smaller than the area of the opening hole that forms the exhaust port B and the exhaust port C that are located on both sides of the exhaust port A and that the wind that does not flow over the heating coil reaches , the amount of hot air blown out is suppressed from exhaust port a, it can reduce the temperature of the air in that portion.

Also, the area of the opening hole of the exhaust port A becomes less than the area of the opening hole forming the outlet B and the exhaust port C wind reaches not located on either side stream over the induction heating coil outlet A Therefore, the heat that did not go out from the opening hole of this part flows out to the exhaust outlets on both sides of the opening hole, mixes with the low temperature air blowing of this part, and blows out of the main body, so that the temperature of the entire blowing air blowing can be lowered. .

In the induction heating cooker of the present invention, the area of the opening hole of the exhaust port A where the wind that flows over the heating coil reaches is located on both sides of the exhaust port A, and the exhaust that the wind that does not flow over the induction heating coil reaches. By making it smaller than the area of the opening hole which forms the opening | mouth B and the exhaust port C, the quantity of the hot air which blows off from the exhaust port of this part can be suppressed, and the temperature of the air of the part can be reduced.

The first invention includes a top plate, a resin main body with the top plate attached to the top, a resin main body that is combined with the main body upper portion to form a main body, and below the top plate. an induction heating coil provided, the main body is provided in the lower air inlet及 beauty plurality of the opening holes in forming an exhaust port, said body electric circuit current flows in the induction heating coil and lower inner to provided driven a printed circuit board configured to, before the outside air is provided on Ki吸 air opening neighborhood from the suction blower and diverted into the body the exhaust port into the body, a febrile component and the heat exchanger to the temperature increase wind comprising a cooling fan for blowing out the body, and the exhaust port, the position of the wind flowing over the induction heating coil to reach
An exhaust port A provided on the both sides of the exhaust port A, and an exhaust port B and an exhaust port C provided at positions where wind that does not flow over the induction heating coil reaches. The area of the opening hole constituting the exhaust port A is defined as the exhaust port B so that a part of the wind that flows over the coil and reaches the exhaust port A is divided into the exhaust port B and the exhaust port C. And the area of the opening hole forming the exhaust port C is smaller.

With this configuration, the air flowing from the cooling fan over the top surface of the induction heating coil is self-heated by the induction heating coil flowing current, and a pan that is placed on the top plate above the induction heating coil and heated. The hot air blows out of the main body from the exhaust port A facing the cooling fan of the induction heating coil, but a part of the heat is blown out and the other parts By changing the flowing direction of the heat and flowing it to the exhaust port B and the exhaust port C on both sides thereof, the temperature of the hot air is lowered and the air can be exhausted outside the main body.

  In the second invention, a thin heat insulating plate is attached to the lower surface of the top plate above the induction heating coil.

  As a result, a thin heat insulating plate is attached to the lower surface of the top plate to suppress the radiant heat due to heating of a cooking device such as a pan placed on the top plate and heated, so the temperature of the blown out air is lowered. be able to.

  Here, if the heat insulating plate is the size of the entire top plate, the temperature of the top plate itself also rises, and there is a risk of burns if it touches the top plate when placing a pan etc. on the top plate. By setting the size equal to the size of the heating coil, it is possible to let the wind come into contact with the lower side of the top plate except for the portion above the induction heating coil, and the temperature rise of the top plate can be suppressed.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. In addition, this invention is not limited by this embodiment.

(Embodiment 1)
1-6 has shown the electromagnetic induction heater in Embodiment 1 of this invention.

  In the present embodiment, the cooking utensil is not limited to a pan-shaped one, but this will be described below as a representative example.

  In FIG. 1, 11 is a top plate, 12 is an upper part of a resin main body with the top plate 11 attached to the top, and 13 is a lower part of a resin main body which is combined with the upper part 2 of the main body to constitute the main body. Reference numeral 14 denotes an exhaust port at the rear of the main body.

In FIG. 2, the exhaust port 14 at the rear of the main body is divided into 15 exhaust ports A, 16 exhaust ports B, and 17 exhaust ports C. The area of the opening hole of the exhaust port A15 is smaller than that of the exhaust port B16 and the exhaust port C17. On the side surface side of the main body, the exhaust port A15 has 18 opening holes A and 19 closed portions A exist.

In FIG. 3, the exhaust port A14 at the rear of the main body has 20 opening holes B small and 21 closed portions B on the bottom surface side of the main body.

  Reference numeral 22 denotes an air inlet provided on the bottom surface of the main body.

  In FIG. 4, reference numeral 23 denotes a printed circuit board constituting an electric circuit provided in the main body lower portion 13, and reference numeral 24 denotes a cooling fan provided in the main body lower portion 13. Reference numeral 25 denotes an induction heating coil provided on the back surface of the top plate 11. The induction heating coil 25 is attached to a coil holder 26 and is held by 27 fixing portions from above. The coil holder 26 is attached to the lower part 13 of the main body.

  About the induction heating cooking appliance comprised as mentioned above, the operation | movement and an effect | action are demonstrated below.

  First, when induction heating a pan or the like placed on the top plate 11, when the printed circuit board 23 is driven, a current flows through the induction heating coil 25 to generate a magnetic field. At that time, the electronic components of the printed circuit board 23 and the induction heating coil 25 generate heat. At the same time, the cooling fan 24 is driven.

  When the cooling fan 24 is driven, outside air is sucked into the main body from the air inlet 22 provided in the lower portion 12 of the main body, and air is blown into the main body.

  Here, there are several parts that need to be cooled in the main body, and the air blown from the cooling fan 24 is divided and flows in the main body. Then, the air flows while touching the parts that need to be cooled, and the air of the air and the self-heating parts exchange heat, while the air of the air reaches each of the wide exhaust ports while raising the temperature. It is blown out of the body through the hole in the mouth.

  In FIG. 5, 30 air blows A flow on the surface of the induction heating coil 25 and flow to the exhaust port A15. The blower B of 31 does not flow on the surface of the induction heating coil 25 and flows without much touching the electronic components of the printed circuit board 23, and reaches the exhaust port B16.

  The blower C of 32 does not flow on the surface of the induction heating coil 25 but flows while touching the high-temperature electronic component of the printed circuit board 23 and reaches the exhaust port C17.

  Here, the parts to be cooled are not all at the same temperature, and the speed and amount of air to be blown are not constant, and the temperature of the air blow A30 is higher than that of the air blow B31 and the air blow C32.

  In FIG. 6, when the air blow A30 reaches the vicinity of the exhaust port A15, the opening hole A18 and the opening hole B20 which are the opening holes of the exhaust port A15 are smaller than the area of the opening hole of the exhaust port B16 and the exhaust port C17. The air blow A30 is divided like the air blow D 33.

  Thereby, the heat of the air blower A30 is also distributed, and a part of the heat is not emitted from the exhaust port A15 but is emitted from the exhaust port B16 and the exhaust port C17, so that the temperature of the air blown out from the exhaust port A15 is reduced.

  Moreover, although the temperature of the ventilation blown out from the exhaust port B16 and the exhaust port C17 rises, since the original temperature is low, it does not feel uncomfortable.

  As described above, hot air having a high temperature can be prevented from blowing out from a part of the exhaust port of the main body.

(Embodiment 2)
FIG. 7 shows an induction heating cooker according to Embodiment 2 of the present invention.

  The same names and the same symbols as those of the first embodiment are the same in shape and function.

  In FIG. 7, a 41 heat insulating plate of approximately the same size as the induction heating coil is affixed to the top plate 11 with a 42 fixing tape on the back surface of the top plate 11 provided on the upper body portion 12.

  Thereby, the top plate 11 receives conduction heat from a cooking device such as a pot that is placed on the top plate 11 and heated, and radiant heat is generated downward from the back surface of the top plate 11, but the heat insulating plate 42. By providing this, it is possible to suppress the air on the induction heating coil from receiving radiant heat, and to suppress an increase in the temperature of the air flowing on the induction heating coil.

  Therefore, the temperature of the blower A30 reaching the exhaust port A15 of the main body can be suppressed from rising, and the temperature of the blown air blown out from the main body can be lowered.

As described above, an electromagnetic induction cooker according to the present invention, it is possible to reduce the exhaust temperature of the timed sense.

The perspective view which shows the induction heating cooking appliance in Embodiment 1 of this invention. Rear view of the induction heating cooker Rear view of the induction heating cooker The perspective view which removed the top plate which shows the inside of the induction heating cooking appliance The perspective view which removed the top plate which shows the inside of the induction heating cooking appliance, and the upper part of a main part Top view showing the inside of the induction heating cooker and the top part of the main body removed The back view of the top plate which shows the induction heating cooking appliance in Embodiment 2 of this invention

Explanation of symbols

11 Top plate 12 Upper body 13 Lower body 14 Exhaust port 15 Exhaust port A
16 Exhaust port B
17 Exhaust port C
18 Opening hole A
19 Closure A
20 Opening hole B
21 Closure B
22 Intake Port 23 Printed Circuit Board 24 Cooling Fan 25 Induction Heating Coil 26 Coil Holder 27 Fixed Part 30 Air Blow
31 Air B
32 Air blow C
33 Air blow D
41 Insulation plate 42 Fixing tape

Claims (2)

A top plate, a resin main body with the top mounted on the top, a resin main body combined with the main body to form a main body, and an induction heating coil provided below the top plate; the body is provided in the lower portion, the inlet及 beauty plurality of open hole the formed outlet, wherein the printed circuit board configuring the electrical circuit in which a current flows in the induction heating coil to be driven is provided in the lower body and a cooling fan for blowing the outside air is provided before Ki吸 air opening neighborhood from the exhaust port and blows air in sucked into the main body is diverted into the body, fever parts and heat exchange to a temperature elevated wind outside body When, wherein the exhaust port, flow and outlet a wind is provided at a position reached flowing over the induction heating coil, over the induction heating coil provided on both sides of the exhaust port a Exhaust port B provided at the position where no wind reaches Comprising an exhaust port C, and, as part of the wind to reach the exhaust port A flows over the heating coil is diverted to the exhaust port B and the exhaust port C, and constitutes the exhaust port A induction heating cooker which is smaller than the area of the open hole to form the exhaust port B and the exhaust port C of the area of the opening hole. The induction heating cooker according to claim 1, wherein a thin heat insulating plate is attached to the lower surface of the top plate above the induction heating coil.

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