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| Central receiver solar collector using mechanically linked mirrors |
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| Solar panel |
| What is claimed is: 1. An elongated extruded solar panel comprising: a relatively flat member of ... |
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| Preheater device for hot water heaters |
| OF THE INVENTION Water heater 10 is of conventional construction and does not per se form a part ... |
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| System for use with solar collector |
| This invention features a system for use with a solar collector, comprising a water storage tank, a ... |
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| Heat exchanger support construction |
| In order to overcome the aforementioned disadvantage of unbalanced fluid pressure forces acting on ... |
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| Solar collectors |
| The present invention is directed particularly to the latter type of solar collector but provides a ... |
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| Graded pore size heat pipe wick |
| A uniform pore-size wick has an optimum pore-size equal to twice the gravitational head. A graded ... |
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High frequency heating cooking apparatus and manufacturing method thereof
| Details |
Inventors: Hayakawa, Yuji; Hori, Ichiro;
Assignee: Matsushita Electric Industrial Co., Ltd. (Osaka, JP)
Primary Examiner: Leung; Philip H.
Assistant Examiner:
Attorney, Agent or Firm: Ratner & Prestia
A high frequency heating cooking apparatus is capable of preventing from rusting and reducing the cost substantially at the same time. The heating compartment of the high frequency heating cooking apparatus of the invention comprises a side wall, a top panel, and a bottom panel. By folding and plating one plated steel plate, the side wall having a left side wall, a right side wall, and a back side wall is formed. The plated steel plate has a function of preventing from rusting. The top panel is made of a stainless steel material, and this top panel has a power feed port, an intake hole, and an exhaust hole. The side wall made from a plated steel plate does not have opening ends of holes such as intake hole and exhaust hole. |
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DETAILED DESCRIPTION An exemplary embodiment of a high frequency heating cooking apparatus of the invention is described below by referring to FIG.
1 and FIG.
2.
A perspective view for explaining the constitution of an embodiment of a high frequency heating cooking apparatus of the invention is shown in FIG.
1, and its front sectional view is given in FIG.
2.
In FIG.
1 and FIG.
2, a heating compartment 20 for heating food is composed of a nearly rectangular parallelepiped having a left side wall 1a, a right side wall 1b, a back side wall 4, a top panel 3, a bottom panel 4, and a door.
A lower heater 11 is provided outside of bottom panel 2, and an upper heater (not shown) outside of top panel 3.
At the outside of heating compartment 20, magnetron 8 for generating high frequency electromagnetic waves, and waveguide 15 are installed.
Top panel 3 is manufactured from a stainless steel material.
Stainless steel has an excellent heat resistance and prevents rust .
Power feed port 7, intake hole 5, and exhaust hole 6 are formed in top panel 3.
At the upper side of top panel 3, waveguide 15 is installed between power feed port 7 and magnetron 8.
The high frequency electromagnetic waves generated by magnetron 9 are guided into heating compartment 20 through waveguide 15 and power feed port 7.
Intake hole 5 has plural tiny penetration holes, and plays the role of taking in the air for ventilation inside heating compartment 20.
Exhaust hole 6 has plural tiny penetration holes, and plays the role of exhausting steam or gas generated in heating compartment 20 to the outside.
It is preferred that intake hole 5 be formed at a remote position from exhaust hole 6.
Intake hole 5, exhaust hole 6, and power feed port 7 are formed, for example, by blanking.
The left side wall 1a, right side wall 1b, and back side wall 1c are integrally composed into a pi-form or a U-form.
That is, side wall 1 composed of left side wall 1a, right side wall 1b, and back side wall 1c is an integral structure manufactured by folding and processing one plate material
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