JPH0616435B2 - Induction heating cooker - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an induction heating cooker, and more particularly, to an improvement in a cooling configuration of an induction heating cooker including a heating unit section including a power supply section and a frequency converter. It is a thing.

2. Description of the Related Art A conventional induction heating cooker includes a power switch, a display unit, a filter unit, a power setting unit, a fuse, a relay, and other electric components to prevent noise low frequencies and circuit malfunctions. The high frequency part composed of the inverter circuit, heating coil, control circuit, etc. was cut off by aluminum or iron plate.

For example, as shown in FIG. 5, the partition wall 6 electrically and magnetically cuts off the power supply unit 4 composed of electric parts and the heating unit part 5 composed of high-frequency circuit parts. Further, in order to cool the electric components of the power source unit 4 and the circuit components of the heating unit unit 5, a cooling fan 9 is provided in the heating unit unit 5, and a ventilation opening 6a is provided at one end of the partition wall 6. Has been. When the cooling fan 9 is driven, the cooling air is taken in through the intake port 2, cools the electric parts of the power supply unit 4, passes through the ventilation openings 6a, and cools the high frequency parts between the wind direction guides 7 on both sides of the heating coil 8. While passing through, it flows out through the exhaust port 3.

DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention However, in the conventional cooling configuration, since the cooling air winds at the ventilation openings 6a of the partition wall 6 at an acute angle, the wind noise is increased and the ventilation resistance is increased, so that the cooling efficiency is improved. It is considerably unfavorable because it causes a considerable decrease in noise and inevitably increases noise.

The present invention solves the above-mentioned conventional problems, and an object thereof is to improve the cooling efficiency significantly at a low price by improving a simple cooling structure.

Means for Solving the Problems In order to solve the above problems, the induction heating cooker according to the present invention has a part of a partition wall that partitions a power source section including electric parts and a heating unit section including high frequency circuit parts. While the ventilation openings are provided, one opening end of the wind direction guides on both sides of the heating coil is provided so as to face the ventilation openings of the partition wall.

Operation According to the above configuration, the cooling air is taken in by the cooling fan from the intake port to cool the electric parts of the power supply. Then, the cooling air is guided between the air flow guides of the heating unit section through the ventilation openings of the partition wall. At this time, the cooling air is smoothly guided between the airflow direction guides because one open end of the airflow direction guide is arranged so as to face the ventilation opening.

Therefore, the effects of reducing wind noise due to cooling air and improving cooling efficiency are provided.

Example Hereinafter, an example of the present invention will be described with reference to the drawings.

In FIG. 1, the cooker main body 1 is partitioned by a partition wall 6 into a power source section 4 composed of electric parts and the like and a heating unit section 5 composed of high frequency circuit parts and the like.

The heating unit section 5 is composed of a heating coil 8, airflow direction guides 7 on both sides of the heating coil 8, a cooling fan 9, an inverter circuit component and the like. Further, 10 is a support base that supports the heating coil 8, and 11 is a top plate on which a pot or the like is placed.

The intake port 2 and the exhaust port 3 are on the same plane and arranged in the same row.

The cooling air taken in from the outside of the cooking device by the cooling fan 9 from the intake port 2 passes through the power source part 4, the ventilation opening 6a and the heating unit part 5, and is again discharged from the exhaust port 3 to the outside.

Next, in the second embodiment of the present invention, as shown in FIG. 2, the wind direction guide 12 and the cooker exterior are integrated. Further, as shown in FIG. 3, one opening end of the wind direction guide 7 is connected to the partition wall 1
3 may be provided so as to completely face one side ventilation opening 13a,
Further, as shown in FIG. 4, the ventilation opening 14a has a partition wall 14a.
It may be provided near the center of.

In each of the above-mentioned configurations, one opening end of the wind direction guide 7 on both sides of the heating coil 8 is provided at the ventilation opening 6 of the partition walls 6, 13, and 14.
It is provided so as to face a, 13a, and 14a. Therefore, the cooling air taken in from the intake port 2 cools the electric components in the power supply unit 4 and then the ventilation openings 6 in the partition walls 6, 13, 14
When passing through a, 13a, and 14a and passing through the ventilation passages between the wind direction guides 7 on both sides of the heating coil 8, the ventilation resistance is significantly reduced, and the cooling air flows smoothly.

Further, since the intake port 2 and the exhaust port 3 are arranged on the substantially same direction side, the cooker main body 1 can be made compact and the design is also good.

As described above, according to this embodiment, by providing one open end of the wind direction guide 7 on both sides of the heating coil 8 so as to face the ventilation openings 6a, 13a, 14a of the partition walls 6, 13, 14a, the ventilation resistance is increased. The cooling air flow can be made smoother, the cooling efficiency can be improved, and the performance can be easily improved without increasing the cost.

Effects of the Invention As described above, according to the present invention, the following effects can be obtained.

(1) The cooling efficiency can be improved and the noise due to wind noise can be reduced as the ventilation resistance is reduced.

(2) It is possible to reduce the size and weight of the cooker body and reduce the cost by rationalizing the cooling fan with the improvement of cooling efficiency.

[Brief description of drawings]

FIG. 1 (a) is a partially cutaway plan view of an induction heating cooker showing an embodiment of the present invention, and FIG. 1 (b) is A- in FIG. 1 (a).
A'sectional view, FIG. 2 is a sectional view of an induction heating cooker showing a second embodiment, and FIGS. 3 and 4 are partially cutaway plan views of an induction heating cooker showing another embodiment. FIG. 5 is a partially cutaway plan view showing a conventional induction heating cooker. 1 ... Induction heating cooker body, 2 ... Intake port, 3 ... Exhaust port, 4 ... Power supply unit, 5 ... Heating unit unit, 6, 13,
14 ... Compartment wall, 7 ... Wind direction guide, 8 ... Heating coil.

Claims (1)

[Claims] 1. A main body provided with an intake port and an exhaust port in substantially the same direction, a heating coil unit portion provided on the exhaust port side of the main body, and a power source unit including electrical parts provided on the intake port side. A partition wall that partitions each of these parts and is partially formed with a ventilation opening, and a wind direction guide that forms a ventilation path in the heating coil portion are provided, and the opening of the wind direction guide is provided facing the ventilation opening of the partition wall. Induction heating cooker.