JPS5986833A - heating device - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a gas oven type heating device.

Configuration of conventional example and its problems In the case of a conventional gas oven type heating device as shown in Fig. 1, it is easier to obtain a large amount of heat compared to an electric oven type, and the set temperature of heating chamber 1 is However, on the other hand, the heating chamber 1 and combustion chamber 2 had the advantage of being able to reach a higher temperature and taking a shorter time to raise the temperature of the heating chamber 1.
The problem is that the temperature of the top surface of the main body outer shell 3 is too high due to the influence of heat from the heating chamber 1 and the electrical and mechanical parts placed between the main body outer shell 3 are not durable in terms of heat resistance. was likely to occur.

Purpose of the Invention The present invention solves the above-mentioned conventional drawbacks by intensively extracting hot air from a specific area between the outside of the main body and the heating chamber. The purpose is to lower the temperature as well as the temperature of electrical or mechanical parts placed near it.

Structure of the Invention In order to achieve the above object, the heating device of the present invention includes a combustion chamber at the rear of the heating chamber, an exhaust pipe connected to an opening provided at the top of the combustion chamber, and an exhaust pipe connected to the rear upper part of the outside of the main body. An exhaust pipe is provided, an exhaust opening is provided at the rear upper part of the outer shell of the main body, an exhaust guide for guiding the exhaust upward is joined to the exhaust opening, and the exhaust pipe is passed through the exhaust opening. In addition, the guide is divided into two by a partition wall, the exhaust pipe is inserted into one side, and a substantially sealed hot air venting guide is connected to a hot air venting hole provided on the top surface of the outside of the main body on the other side. Second, it has the effect of lowering the temperature between the outside of the main body and the heating chamber, as well as lowering the temperature of electrical parts and mechanical parts arranged in the vicinity.

DESCRIPTION OF EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings.

In FIG. 2, 1 is a heating chamber, 2 is a combustion chamber provided after the heating chamber 1, 3 is a burner, 4 is a circulation fan that sends hot air into the heating chamber 1, 4a is a motor for driving the circulation fan 4, and 4b 5b is a self-cooling fan of the motor 4a, and 5b is an exhaust opening provided at the rear upper part of the outer shell, to which is connected an exhaust guide 6 for guiding exhaust gas to the upper part. 7 is combustion chamber 2
An opening 2a provided in the upper part of the exhaust pipe is a joined exhaust pipe that passes through the exhaust opening 5b. A magnetron 8 is connected to the heating chamber 1 through a waveguide 9.

1o is a door that opens and closes the heating chamber 1. Reference numeral 11 is a hot air vent guide, which is located outside the main body as shown in Figures 4, 5, and 6.
A hole 6C provided on the upper surface of the exhaust guide 6 is joined to a part of the exhaust guide 6 in a substantially hermetically sealed state.

The exhaust guide 6 is divided into two parts by the partition wall 6a, and the exhaust pipe 7 is penetrated into one part 6b as described above, and the hot air vent guide 11 is joined to the other part 6C. 7th
In the figure, 12 is a safety switch that operates according to the opening and closing of the door 1o, and 13 is a safety switch 12 that operates in conjunction with the door 10.
It is an arm for opening and closing. The hole 5C on the top surface of the outer shell 5 is provided above the safety switch 12.

FIG. 2 is a top view of the movement of hot air between the heating chamber 1 and the combustion chamber 2 due to the circulation 77 channel 4, and FIG. 8 is a diagram showing the main body assembled and installed in the cabinet 14.

The operation of the above configuration will be explained below.

Exhaust air discharged from the exhaust pipe 7 and cooling air sucked in from the intake hole 5a provided on the rear surface of the outer shell 5 by the cooling air 7n 4b as shown by the arrow are transferred to one side 6b of the exhaust pipe 6.
The safety switch 12 is discharged from the safety switch 12 and comes out from the hole 5C on the top surface of the main body outer cover 5 provided at the top of the safety switch 12.
The hot air in the vicinity is vented and passes through the guide 1-1 to the exhaust pipe 6.
It is discharged from the other side 6C.

In this way, according to this embodiment, hot air is intensively extracted from the hole 5C on the top surface of the main body 5 provided at the top of the safety switch 12, so the temperature of the safety switch 12 and its surroundings can be lowered. . The hole 5C on the top surface of the main body outer shell 5 to which the hot air vent guide 11 is joined may be provided above any part whose temperature is desired to be lowered. By partitioning and dividing the exhaust guide 6 by the partition walls 6a, the following effects can be obtained. In other words, since the high temperature exhaust gas discharged from the exhaust pipe 7 has a high pressure, the hot air vent guide 1
If 1 is joined to the same place as the space 6b of the exhaust guide 6 that penetrates the exhaust pipe 7, the hot air removal guide 11 will not be able to remove the hot air properly. Hot air release guide 11
By flowing the waste heat to 6C, it has the effect that hot air in the vicinity of the safety switch 12 can be well vented.

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

1. The temperature of the top surface of the outside of the main unit can be lowered.

2. The temperature of electrical parts and mechanical parts placed between the heating chamber and the outer shell of the main body can be effectively lowered, improving durability and reliability.

In relation to 31, it is safe in terms of fire, etc.

It is also possible to reduce parts costs in connection with 420

[Brief explanation of the drawing]

Fig. 1 is a side sectional view of a conventional heating device, Fig. 2 is a side sectional view of a heating device according to an embodiment of the present invention, Fig. 3 is a plan sectional view of the same, and Figs. 4 to 6a are 6 is an enlarged perspective view of the essential parts, FIG. 7 is a front sectional view, and FIG. 8 is a side view. 1... Heating chamber, 2... Combustion chamber, 5.
...Outside the main body, 6...Exhaust guide, 7
...Mountain/exhaust stack, 11...Hot air removal guide. Name of agent: Patent attorney Toshio Nakao and 1 other person! @
1 Figure, 9 Figure 2 fJSs Figure 4! Figure 5 Figure 6 C

Claims (1)

[Claims] A combustion chamber is provided at the rear of the heating chamber, an exhaust pipe is provided by joining the opening provided at the top of the combustion chamber, an exhaust opening is provided at the rear upper part of the outside of the main body, and an exhaust pipe is provided to guide the exhaust gas upward. A guide is joined to the exhaust opening, the exhaust pipe is passed through the exhaust opening, and the exhaust guide is divided into two by a partition wall, the exhaust pipe is inserted into one part, and the upper surface of the main body is inserted into the other part. A heating device with a nearly sealed heat vent guide connected to a heat vent hole provided in the.