JPS591136Y2 - heating cooker - Google Patents

Description

[Detailed description of the invention] The present invention relates to a heating device that includes a heater heating oven equipped with a heater device at the bottom of the housing, and a high-frequency heating oven and the electrical components necessary for high-frequency oscillation at the top. The aim is to obtain a heating device that is inexpensive and has excellent durability by effectively cooling electrical parts, a high-frequency heating oven, and its attached mechanical parts, and protecting them from the heat generated by the heater device. There is.

Conventionally, there have been sets that combine a heater heating oven and a high frequency heating oven, but these have been combined in completely separate cabinets, or combined into a single oven. A high-frequency heating oven that functions as both a heater heating oven and a high-frequency heating oven by sacrificing the characteristics of the high-frequency heating oven considerably, in which the high-frequency heating oven with complete characteristics is housed in one cabinet, There was no set that included a heater and heating oven.

This means that if you try to give the high-frequency heating oven complete characteristics, such as the provision of a rotating mounting table to improve distribution, the high-frequency heating oven and its attached parts will be affected by the heater heating oven. This was because there was a heat problem.

However, as a more complete set, a high-frequency heating oven with characteristics equal to or better than conventional ones and a heater heating oven are compactly integrated into one cabinet.
There is a great need for cheaper sets, and the present invention aims to achieve this and is extremely useful.

Figures 1 to 3 show an embodiment of the present invention, and in the figures, 1 is a casing that serves as an exterior, and 2 is this casing 1.
The operation panel 3 installed on the front side of the oven is heated by a heater installed at the bottom of the housing 1. Heaters 4°4' are installed on the upper and lower walls of the oven, and a heater 5 is installed inside the oven 3. It is being

Further, a heat insulating material 6°6' is provided on the outside of the wall surface of the oven 3.

Reference numeral 7 denotes an openable/closable door of the heater heating oven 3, and 8 an oven for high frequency heating provided at the top of the housing 1. Inside the oven 8, there are stirrer blades 9 for radio stirring and an antenna for a magnetron 10. , a partition plate 11 made of a radio wave transparent material is provided for the purpose of protecting these.

Reference numeral 12 denotes a rotary mounting table on which an object to be heated is placed and rotated to uniformly heat the object, and 13 is a door of the high-frequency heating oven 8 which can be opened and closed.

Above the oven 8 is a magnetron 1 which is a high frequency oscillation source.
0 and electrical parts such as a high-voltage transformer 14 and a high-voltage capacitor 15 necessary for operating the magnetron 10 are installed, and the rotation of the cooling fan motor 16 of the magnetron 10 is transmitted via a belt 17 and a transmission 18 to an oven 8.
A magnet attached to this pulley and a magnet attached to a rotating mounting table are connected to the bottom of the oven 8, which is made of a magnetically permeable metal material such as SUS 304. As the pulley 20 rotates, the rotating mounting table 1
2 rotates.

Reference numerals 21 and 21' are radio wave absorbers made of ferrite or the like and are used to prevent radio waves from leaking around the door 13.

A duct 22 is provided between the oven 3 and the oven 8, and one outlet of the exhaust duct 22 is connected to a cross flow fan 23ρ outlet 23a, and the other outlet is opened at the front of the table holder 1. There is.

24 is a decorative frame provided on the front outer periphery of the housing 1;
When the housing 1 is stored in a storage frame provided on a wall in a kitchen or the like, it serves to close the gap between the storage frame and the casing 1 when viewed from the front.

To explain the air flow here, the cold air sucked in from the air intake hole 1a above the oven 8 on the front of the housing 1 is sent to the operation panel 2.
Then, the electrical components on the oven 8 are cooled, sucked into the suction port 23b of the fan 23, and discharged through the exhaust duct 22 from the exhaust hole 1b on the front surface of the housing.

Also, a part of the air sucked in from the intake hole 1a is transferred to the fan motor 1.
After the magnetron 10 is cooled by 6, the magnetron 10 enters the oven 8 through the air guide 25, rotates the stirrer blades 9 by wind, and is then discharged from the oven 8 as shown by the arrow and sucked into the suction port 23b of the fan 23.

Furthermore, an air intake hole 1C is provided below the oven 3 on the front surface of the housing 1, and a portion of the air is drawn into the air intake port 23b of the fan 23 through the gap between the exhaust duct 22 and the housing 1, etc.

In this way, the exhaust duct 22 that passes the air sucked into the suction port 23b of the fan 23 effectively prevents the heat generated on the oven 3 side from being transmitted to the oven 8, and It is possible to prevent the adverse effects of the heat of the oven 3 on mechanical parts attached to the oven 8 and electrical parts such as the magnetron 10, high-voltage transformer 14, and high-voltage condenser 15.

Furthermore, since many electrical components that require cooling are located around the oven 8, especially on the top surface of the oven g, the cooling air flows through the air intake hole 1.
The cooling effect is good if suction is drawn from the air intake hole 1C, but the suction from the air intake hole 1C is only for preventing the temperature rise around the oven 3 of the housing 1, so the amount of suction is small and in some cases, the exhaust duct 22 may be used to cool the oven. It is also possible to completely partition the space between the oven 3 and the oven 8 or to close the intake hole 1C, so that the thermal efficiency of the oven 3 is not impaired by cooling (electrical parts, etc.) inside the housing 1.

As explained above, according to the present invention, the following effects can be expected.

1 The exhaust duct can create a heat insulating layer between the heater heating oven and the high-frequency heating oven, so the high-frequency heating oven and its attached electrical and mechanical parts are protected from the heat of the heater heating oven. Since excessive heat resistance is not required, these electrical and mechanical parts can be constructed from cheaper materials than those conventionally used in high-frequency heating devices, and the cost of the set can be reduced.

2. By locating electrical components that require cooling on the high-frequency heating oven side, it is not necessary to pass much cooling air through the heater heating oven side, and therefore the thermal efficiency of the heater heating oven can be improved.

3 The air passing through the exhaust duct is the air that has cooled electrical parts, etc., so its temperature has risen somewhat, so it does not take away too much heat from the heater heating oven, which impairs the thermal efficiency of the heater heating oven. do not have.

4 Place the electrical components you want to cool (electrical components necessary for high-frequency oscillation, etc.) on the top of the high-frequency heating oven, and suck in the cooling air from the top of the high-frequency heating oven on the front of the housing to cool the electrical components you want to cool. By applying cold air from outside, these electrical components can be cooled to the maximum extent, improving their durability, and using cheaper materials with lower heat resistance. It also becomes possible.

5 The air coming out of the exhaust duct blows over the door of the heater heating oven, so the very high temperature that comes out from the gap in the heater heating oven door has a negative effect on the high frequency heating oven door and the radio wave absorber. It is possible to avoid this.

In particular, when grilling meat in a heater heating oven, it may be better to open the door slightly to allow smoke and steam to escape.In this case, the hot air inside the heater heating oven may be If this hot air rises to the top, the door of the high-frequency heating oven and the radio wave absorber may overheat and adversely affect the radio wave sealing performance.

For example, when the temperature of a radio wave absorber increases, the radio wave absorption characteristics may deteriorate, and the radio wave sealing effect may be inhibited by thermal warping of the context.

However, according to the present invention, these problems can be solved because the air coming out of the exhaust duct scatters the hot air coming out from between the heater heating oven and the door.

Furthermore, this allows the door of the high-frequency heating oven to be constructed from an inexpensive material with lower heat resistance.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of a heating cooker showing an embodiment of the present invention;
FIG. 2 is a side sectional view of the same, and FIG. 3 is a front sectional view of the same. 1...Housing, 2...Operation panel, 3.
...Heater heating oven, 4.4', 5...
...Heater, 8...Oven for high frequency heating.

Claims (1)

[Scope of utility model registration request] A high-frequency heating oven is installed in the upper part of the housing, and a heater heating oven equipped with a heater device is installed in the lower part of the housing. Electrical components necessary for high-frequency oscillation are arranged on the upper surface of the high-frequency heating oven, and the heater heating A ventilation duct is provided between the heating oven and the high-frequency heating oven to exhaust the air toward the front, and the air is sucked in by a fan from the upper front of the housing to cool the electrical components necessary for the high-frequency oscillation, and then the air is discharged into the air. A heating cooker that discharges cooling air from the front of the housing through a duct and guides the other cooling air from the lower front of the housing along the periphery of the heater heating oven to the air duct.