JPS6116625Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to an induction heating device that generates heat by generating eddy current in a metal cooking container such as iron or stainless steel using magnetic lines of force generated by a heating coil.

Generally, as shown in FIG. 1, this type of device has a top plate 2 on the top surface of the main body 1 on which an object to be heated such as a cooking pot is placed, and a plurality of heating coils 3 on the bottom surface of the top plate 2. ,3 are attached,
An object to be heated placed on top plate 2 is heated by each heating coil 3, 3. By the way, conventionally, various electrical parts such as a control circuit for controlling the heating coils 3, 3 are installed in the case 4 of the main body 1, and a fan 5 is installed on the front plate 4a of the case 4. For example, outside air is sucked into the case 4 by the fan 5, the inside of the case 4 is cooled, and then the air heated by heat exchange is transferred to the back plate 4b of the case 4.
There was one that was configured to be discharged to the outside from an exhaust port 6 provided in the.

However, the work of installing various electrical components inside the case 4 is troublesome, and there is a problem in that the efficiency of the assembly work cannot be improved. Furthermore, case 4
In order to sufficiently cool the entire interior of the case 4, there was a problem in that the opening area of the exhaust port 6 had to be relatively large, or a ventilation duct or the like had to be provided inside the case 4. Therefore, when a duct is provided inside the case 4, the number of parts increases, resulting in a problem of high cost.

In addition, as shown in FIG. 2, an intake port 7 is provided on the front plate 4a of the case 4, and a fan 8 is attached to the side plate 4c of the case 4 to draw outside air into the case 4 from the front side of the case 4. In the case where the air is exhausted to the sides of the case 4, it is difficult to effectively ventilate the entire interior of the case 4. Therefore, when the inside of the case 4 is configured to be effectively cooled, there is a problem that the positions of the intake port and the exhaust port are specified, and the intake port and the exhaust port cannot be set at arbitrary positions.

This idea was made in consideration of the above circumstances, and its purpose was to facilitate the assembly work, increase the cooling efficiency inside the main body, and allow the intake and exhaust ports to be freely arranged. An object of the present invention is to provide an inexpensive induction heating device that can be set at any position.

This invention will be explained below based on examples. FIG. 3 shows a first embodiment of this invention, in which a top plate 12 is provided on the upper surface of the main body 11. A plurality of heating coils 13a and 13b are arranged on the lower surface of the top plate 12. In addition, inside the case 14 of the main body 11, a plurality of first and second control units 16a and 16 (same number as the number of heating coils) are provided with mounting plates 15a and 15b.
b is installed. These first and second control units 16a and 16b are mounted on the mounting plate 1 on the upper surface.
5a and 15b are provided. The first and second control units 16a and 16b are mounted on the case 14 with both mounting plates 15a and 15b positioned approximately at the center of the case 14 in the height direction. Case 14 by
The interior is divided into an upper and a lower part.
Further, a control member such as a control circuit for controlling one heating coil 13a is mounted on the mounting plate 15a of the first control unit 16a. and,
This first control unit 16a has an opening 17 at one end.
a is spaced apart from the front plate 14a of the case 14, and the other end opening 17b is attached to the rear plate 14b of the case 14. In addition, the second
A control member such as a control circuit for controlling the other heating coil 13b is mounted on the mounting plate 15b of the control unit 16b. The second control unit 16b is arranged such that one end opening 18a is attached to the front plate 14a of the case 14, and the other end opening (not shown) is spaced apart from the rear plate 14b of the case 14. has been done. Furthermore, a fan 19 is attached between the mounting plate 15b of the second control unit 16b and the back plate 14b of the case 14. On the other hand, the front plate 14a of the case 14 has a second
An intake port 20 is formed in a portion of the control unit 16b that faces the opening 18a at one end. Also,
An exhaust port 21 is formed in the back plate 14b of the case 14 at a portion facing the other end opening 17b of the first control unit 16a.

Therefore, in the case of the above configuration, fan 1
9 is driven, outside air is sucked into the case 14 through an intake port 20 formed in the front plate 14a of the case 14. In this case, as shown by the arrow in FIG.
, is led out from the other end opening of the second control unit 16b, and sent to the upper part of the case 14 by the fan 19. The cooling air sent to the upper part of the case 14 flows along the control plates 15a and 15b of both the first and second control units 16a and 16b, and passes through the opening 17a at one end of the first control unit 16a to the first The first control unit 16a (the lower part of the case 14) passes through the inside of the first control unit 16a, and is discharged to the outside from the exhaust port 21 provided on the back plate 14b of the case 14.

Thus, in the case of the above structure, each control member for controlling each heating coil 13a, 13b is attached to the mounting plates 15a, 15b of the first and second control units 16a, 16b, so that it is different from the conventional one. As shown in the figure, it is not necessary to perform the installation work of the control member within the narrow working space inside the case, and the assembly work can be facilitated. In addition, the first and second control units 16
A ventilation passage for cooling air is formed by the normal assembly work of mounting a and 16b into the case 14, so
Unlike the conventional method, there is no need to provide special ducts, etc., which prevents an increase in the number of parts and reduces costs.
Furthermore, each of the first and second control units 16a, 1
The case 14 is mounted by the mounting plates 15a and 15b of 6b.
The interior of case 1 is divided into upper and lower parts, and
4 (inside each of the first and second control units 16a, 16b) are formed with ventilation passages for cooling air, so that when the cooling air flows through the lower and upper parts of the case 14, Each control member mounted on the mounting plates 15a, 15b can be cooled, and each control member can be effectively cooled. As a result, the positions of the intake port 20 and the exhaust port 21 can be set arbitrarily.

Next, a second embodiment shown in FIG. 4 will be described. This includes providing an intake port 23 on the back plate 22a of the case 22 and
2b and one side plate 22c have exhaust ports 2, respectively.
4 and 25 are provided, and outside air is taken in from the back side of the case 22 and exhausted to the front side and one side of the case 22. In this case, L-shaped units are used as the first and second control units 27a and 27b that control the heating coils 26a and 26b, and one end of the first control unit 27a is connected to the front panel of the case 22. The second control unit 27b is attached to the front plate 22b, and its other end is spaced apart from the back plate 22a.
2a. Also,
The mounting plates 28a, 28b of the first and second control units 27a, 27b are arranged approximately at the center of the case 22 in the height direction.
The inside of the case 22 is partitioned into upper and lower parts by 28b. Furthermore, the first control unit 27a
The other end of the mounting plate 28a and the back plate 2 of the case 22
A fan 29 is disposed between the fan 2a and the fan 2a. When the fan 29 is rotationally driven, outside air is sucked into the case 22 from the intake port 23 formed on the back plate 22a of the case 22 as shown by the arrow in FIG. 1 control unit 27a, and the rest are sent to the lower part of fan 1.
7 to the upper part of the case 22, and the cooling air further sent to the upper part of the case 22 flows along the mounting plates 28a and 28b of the first and second control units 27a and 27b, and a portion of the air flows into the case 22. 22
The remaining air is discharged from an exhaust port 24 formed in the front plate 22b, and the remaining part is sent to the lower part of the second control unit 27b and exhausted from an exhaust port 25. Even with such a configuration, the same effects as in the first embodiment can be obtained. Note that by closing the exhaust port 24 formed on the front plate 22b of the case 22, it is also possible to adopt a configuration in which air is sucked in from the back side of the case 22 and exhausted to the side side.

Further, FIG. 5 shows a third embodiment. This is achieved by providing air intake ports 31 on the front plate, back plate, and both side plates of the case 30, and
An exhaust port 32 is provided at the bottom of the case 30, and the case 3
Inhale outside air into the case 30 from around 0,
The structure is such that exhaust air is discharged downward from the case 30. In this case, the first and second control units 34a and 34b that control the heating coils 33a and 33b are spaced apart from the front plate, rear plate and both side plates of the case 30, respectively. Mounting plate 35 of each control unit 34a, 34b of 2
a and 35b are arranged approximately at the center of the case 30 in the height direction, and the inside of the case 30 is partitioned into upper and lower parts by these mounting plates 35a and 35b. Further, a fan 36 is disposed approximately at the center of the connection between the mounting plates 35a and 35b, and a duct 37 is formed between the fan 36 and the exhaust port 32 of the bottom plate of the case 30. And Juan 3
6 is rotationally driven, outside air is sucked into the case 30 from each intake port 31 as shown by the arrow in FIG. The rest is sent above each of the first and second control units 34a and 34b, and the remaining part is sent above each of the first and second control units 34a and 34b.
The cooling air sent above the mounting plates 35a and 34b flows along the respective mounting plates 35a and 35b, and is exhausted to the outside through the duct 37 and the exhaust port 32 by the fan 36. Therefore, even with such a configuration, the same effects as in the first and second embodiments can be obtained.

It should be noted that this invention is not limited to the first to third embodiments described above, and it goes without saying that various modifications can be made without departing from the gist of this invention.

As explained above, according to this invention, control members for controlling a plurality of heating coils are mounted on separate mounting plates for each heating coil, and each control unit is controlled by each of these mounting plates. The mounting plate of each control unit divides the inside of the main body into upper and lower parts, so that cooling air flows inside the main body above and below the mounting plate. By forming a ventilation path, it is possible to simplify the configuration and reduce costs, as well as increase the cooling efficiency inside the main body.
Moreover, it provides excellent practical effects such as being able to set the intake port and the exhaust port at arbitrary positions.

[Brief explanation of the drawing]

1 and 2 are perspective views showing different conventional examples, FIG. 3 is a perspective view showing the overall schematic structure of the first embodiment of this invention, and FIG. 4 is a perspective view of the second embodiment. A perspective view showing the overall schematic configuration, Figure 5 is the third
FIG. 2 is a perspective view showing the overall schematic configuration of the embodiment. 11...Main body, 12...Top plate, 13
a, 13b, 26a, 26b, 33a, 33b...
...Heating coil, 15a, 15b, 28a, 28
b, 35a, 35b...Mounting plate, 16a, 27
a, 34a...first control unit, 16b, 2
7b, 34b... second control unit.

Claims (1)

[Scope of utility model registration request] In an induction heating device, a plurality of heating coils are provided on the lower surface of a top plate on the upper surface of the main body, and an object to be heated placed on the top plate is heated by lines of magnetic force output from these heating coils. Each control member for controlling each heating coil is mounted on a separate mounting plate for each of the heating coils, each mounting plate forms a control unit for each heating coil, and each mounting plate is provided with a control member for each heating coil. Accordingly, the induction heating device is characterized in that the interior of the main body is partitioned into an upper part and a lower part, and a ventilation passage for cooling air is formed inside the main body to flow to the upper part and the lower part of the mounting plate, respectively.