JPS5860129A - Composite heating apparatus - Google Patents

Abstract

PURPOSE:To facilitate the layout of a composite cooker, and to compact the cooker by separately arranging a member for an electronic oven and a member for a gas at the upper side and lower side of a bottom plate. CONSTITUTION:With the composite cooker, the members for the electronic oven and a combustion cylinder 38 with a circulating fan-motor 39, etc., which introduce combustion gas into a box and circulate it, and the like are disposed at the upper side of the bottom plate 31', a cock coaxial with a gas cock knob 40, a governor, a solenoid valve, the gas feeder 35 of a nozzle, etc., a burner 36 and a combustion chamber 37 are arranged at the lower side, and an openig section a with width l1 is formed to the upper bottom plate section of the burner 36 within a range not affected by the heat of a flame. Accordingly the electronic parts and the gas parts are divided and disposed by the bottom plate 31'. As a consequence, parts of different kinds are not congested, and safety is established at the time of inspection, etc. Only the gas section is inspected and repaired by removing only the inspection window 41 of the gas section by fixing the window 41 to a side surface by means of a screw 42, and serivceability is improved while safety is further enhanced.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a composite heating device equipped with high-frequency heating means and gas combustion heating means, and is intended to improve serviceability, layout, safety, and performance.

Recently, heating devices that combine a microwave oven and a gas opener have become popular.

Since the heat source of this oven is completely different from electricity and gas, it has the advantage of being able to heat at the same time without being limited by the power supply capacity, and is generally called a combination range.

However, in conventional combination ovens, not only do different heat sources coexist in the heating chamber, but gas and electrical parts coexist inside the machine, making layout difficult and causing problems in terms of serviceability and safety. In addition, these unreasonable demands affect the performance, and the external shape becomes larger than necessary, which we are trying to solve in terms of cost.

FIG. 1 is a side view of the interior of a conventional fuselage, and FIG. 2 is a schematic cross-sectional front view of the conventional example, showing only the basic layout.

In FIG. 1, 1 is an operation panel having a timer knob 2, a gas cock knob 3, and other dual-purpose operation parts, 4 is a body, 6 is a heating chamber, e is a back plate that makes up the outer shell, 7 is a bottom plate that makes up the main body, 8 is a magnetron used as a high frequency oscillator, 9 is a power transformer for the magnetron, 10 is a high-pressure capacitor, 12 is a gas cock provided coaxially with the gas cock knob 3, and 26 is a gas supply port for introducing gas through a rubber hose or the like. 13 is a gas pressure regulating governor; 14
．． 16 is a solenoid valve for main and pilot lights, 16 is the above-mentioned 13~
From the gas control device up to 16, the pipe leads to the burner 17, which is composed of a main burner, a secondary burner, and a pipe leading to the burner 17. 1 is a combustion chamber having the burner, 19 is a motor for driving a circulation fan 2o that introduces high-temperature combustion gas into the heating chamber 6 and circulates it inside the refrigerator, and 21 is an exhaust fan for the refrigerator. It has a temperature sensor inside the passage. 22 is a cooling fan for the magneto 8, 23 is an air gas, an ID, 24 is an attached storage, and 26 is an electronic circuit unit having a pilot flame detection, temperature control circuit, and other safety circuits.

FIG. 2 is a schematic cross-sectional front view showing only the basic layout. Reference numeral 11 is a mounting base for mounting the aforementioned transformer 9, etc., and since the aforementioned governor and solenoid valves 12 to 16 pass through the bottom plate 7, It is floated to avoid these. In the case of a conventional combination range configured as described above, the gas control device and low voltage and high voltage parts are co-located in the same body, which causes the following problems.

1 For example, even if only the gas section is inspected or repaired, all the high-pressure parts of the microwave oven will be exposed, which is dangerous.Also, since the external shape cannot be unnecessarily enlarged, the structure is generally covered, which impairs serviceability. It tends to be.

2. Layout is difficult because different functions coexist, and attempting to make the external shape more compact would complicate the internal structure, causing problem 1 above and limiting the ability to make it more compact. becomes.

3. As a home countertop type, it is necessary to minimize the expansion of the external shape, so the internal structure is three-dimensional, and one mounting member is added to make it three-dimensional, and cooling problems due to the dense internal structure are required. Countermeasures against performance deterioration,
Furthermore, there is still an immeasurable increase in costs from a layout perspective due to external components such as a magnetron, high-voltage transformer, etc. that must be larger than in a single-function oven.

4. Problems such as flames being visible from the inside of the refrigerator due to changes in the flame due to gas pressure fluctuations, etc., and oil smoke from the cooking food sucked in by the circulation fan 20 catching fire occur.

5. Naturally, the path to the exhaust port becomes shorter, so thermal efficiency deteriorates accordingly.

Such problems were also likely to occur.

Therefore, the present invention attempts to improve these various problems with a simple configuration.

FIG. 3 is a perspective view of one embodiment of the present invention, in which 27 is a gas cock knob provided on the operation panel, 28 is a door,
29 is the body, 30 is the interior and combustion. An exhaust port 31 for exhausting burning gas is a door of an accessory storage.

The fourth figure is a side view of the interior of the fuselage shown in FIG. 3, and since the components are the same as those of the prior art example described above, only the main points of the present invention will be explained here.

Reference numeral 31' denotes a bottom plate that serves as a base material for various installations such as the heating chamber 32, the aforementioned door 28, high voltage transformer 33, capacitor 34, etc., and can also be called a base material for the equipment structure. This is an attempt to solve the conventional problems by separately arranging the microwave oven member and the gas member on the side.

In other words, on the upper side, a combustion cylinder 38 and the like having a circulation fan/motor 39 etc. which introduce and circulate the microwave oven parts and the aforementioned combustion gas into the refrigerator are arranged, and on the lower side, a cock coaxial with the gas cock knob 40 and a governor are arranged. .

A gas supply device 35 such as a solenoid valve and a nozzle, and a burner 36,
The combustion chamber 37 is arranged, and the width l! is within the range where the heat of the flame does not affect the upper bottom plate of the burner 36. 1 By providing the opening A, the combustion gas becomes as follows (in Fig. 4, the combustion gas symbol is shown, and the exhaust is represented by →). In other words, the combustion gas burned in the burner 36 is The combustion gas is led to the combustion tube 38, sucked into the circulation fan, and then blown into the heating chamber and circulated in the chamber, while a part of it is sequentially discharged through the exhaust port.The flow of the combustion gas is the same as in the conventional example. be.

The effects of the combination configured in this manner in comparison with the conventional example described above are as follows: 1) Since the microwave oven parts and gas parts are separated at the bottom plate 31', there is no possibility of duplication of different parts, and inspection and repair are easier. When safe. Furthermore, as shown in Fig. 3, by fixing the inspection window 41 of the gas section to the side with screws 42, inspection and repair of only the gas section can be done by removing only the inspection window, which improves serviceability and further improves safety. . In other words, in the past, the entire body was removed, which exposed all of the multiple dissimilar parts, which was extremely dangerous and serviceability was poor.

2) Between the conventional burner 17 and the exhaust port! 3 and the circulation fan motor 19 l! 3 - Actual - is the lower end of the intake port and combustion chamber 1
8. The lower end of the 8th grade also requires distance between the bottom plates for combustion performance, efficiency amplifier, and other aspects.
It is necessary to make 1 large, which is the total height h3
This was a major reason for the increase in On the other hand, according to the present invention, since the burner is located under the bottom plate, 12' and 13', which correspond to the above-mentioned portions, can necessarily be made large, and the distance h1' between the oven bottom plates can also be small, resulting in the total height h3 ′ is also lower, which inevitably leads to compactness.
Layout constraints are removed, and the cost reduction is simply due to the compactness of the body), and the total costs for packaging materials, transportation costs, and warehousing costs are considerable.

3) As mentioned in 2 above, it is necessarily 12'.

Since 13' can be made larger, the problem of 4°6 described in the conventional example can also be greatly improved.

4) Furthermore, even if the gas section is arranged at the bottom of the bottom plate 31', the space occupied by the gas section in the depth direction is dl at 37 minutes for the burner and combustion chamber, and the remaining d is used for the actual combustion inside the chamber d2.
, set so that d>d2, and in one width direction, the storage capacity of the gas supply unit 36 w4. By setting the remaining part W after removing the side foot attachment W3 to the interior width W2 so that W>W2, the space of iv It can be used as an accessory storage.

As described above, the present invention is significantly more compact than the conventional technology, has a simplified layout, improves serviceability, safety, and performance, and has a rational arrangement of accessory storage. This also makes it possible to reduce costs.

[Brief explanation of the drawing]

FIG. 1 is a side view of a conventional composite heating device with the exterior removed, FIG. 2 is a front sectional view of the same, and FIG. 3 is an overall perspective view of a heating device showing an embodiment of the present invention. FIG. 4 is a side view of the same with the exterior removed, and FIG. 6 is a front sectional view of the same. 8 , , , , magnetron , 31' , , , ,
, bottom plate, 3201110. Heating chamber, 35...
Gas supply device, 36. . 011. Burner, 37, Combustion chamber, 3
B. Combustion cylinder. @Figure 1 @Figure 21 Figure 3? '/ Figure 4 Figure 5 Figure 9

Claims (1)

[Claims] A heating chamber, a high-frequency oscillator that supplies high-frequency energy to the heating chamber, a gas combustion device that increases the atmospheric temperature within the heating chamber, and a gas supply device that supplies gas fuel to the gas combustion device. A composite heating device, wherein the gas supply device and the gas combustion device are arranged below the bottom plate constituting the main body of the heating device, and the remaining space under the bottom plate is used as an accessory storage.