GB2028618A - Combined high frequency electrical energy and gas heated cooking apparatus - Google Patents
Combined high frequency electrical energy and gas heated cooking apparatus Download PDFInfo
- Publication number
- GB2028618A GB2028618A GB7925475A GB7925475A GB2028618A GB 2028618 A GB2028618 A GB 2028618A GB 7925475 A GB7925475 A GB 7925475A GB 7925475 A GB7925475 A GB 7925475A GB 2028618 A GB2028618 A GB 2028618A
- Authority
- GB
- United Kingdom
- Prior art keywords
- gas
- chamber
- high frequency
- housing
- outer casing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B6/00—Heating by electric, magnetic or electromagnetic fields
- H05B6/64—Heating using microwaves
- H05B6/647—Aspects related to microwave heating combined with other heating techniques
- H05B6/6473—Aspects related to microwave heating combined with other heating techniques combined with convection heating
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
- F24C15/00—Details
- F24C15/32—Arrangements of ducts for hot gases, e.g. in or around baking ovens
- F24C15/322—Arrangements of ducts for hot gases, e.g. in or around baking ovens with forced circulation
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Baking, Grill, Roasting (AREA)
Abstract
A combined high frequency electrical energy and gas heated cooking apparatus comprises an outer casing 1 having an opening 2 in one side thereof, an openable or removable cover plate 3 for closing said opening 2, a cooking chamber 4 formed within said outer casing 1, a high frequency oscillator 19 for supplying high frequency electric waves to said cooking chamber 4, a gas combustion chamber 6 formed under said cooking chamber 4 and provided with gas burners 27 for supplying gas combustion heat to said cooking chamber 4, and a housing chamber 7 defined by said outer casing 1 and the side walls of said gas combustion chamber 6 and of said cooking chamber 4 to which access can be gained from the outside of said outer casing by the removal of said cover plate 3, a plurality of housing spaces 7a, 7b, being formed in said housing chamber 7, one of said plurality of housing spaces being formed at the lower portion of said housing chamber 7 at the position corresponding to said gas combustion chamber 6. Disposed in said lower housing space 7a is a gas supply unit mainly comprising a gas cock 16, gas supply electromagnetic valves 17a, 17b and gas nozzles 18a, 18b facing towards the gas burners 27. Disposed in one of other housing spaces 7b of said plurality of housing spaces is an electric unit including electric control means 24 and a high voltage transformer 22 for the high frequency oscillator 19. Such arrangement facilitates the replacement and adjustment of such component parts. <IMAGE>
Description
SPECIFICATION
Combined high frequency electrical energy and gas heated cooking apparatus
This invention relates to a combined high frequency electrical energy and gas heated cooking apparatus.
There is known a cooking apparatus in which high frequency electric waves and heat produced by an electric heater are supplied to the cooking chamber. In such a cooking apparatus, however, a small-capacity electric heater may only be used because the allowable electric power is small. The heat produced by such electric heater is therefore useful only in browning the exterior of the food to be cooked, and is not sufficient to roast the food.
There has therefore been proposed a combined high frequency electrical energy and gas heated cooking apparatus in which heat from the combustion of gas having a large capacity of calory and high frequency electric waves are supplied to the cooking chamber. Such combined cooking apparatus may perform cooking very efficiently and quickly by supplying to the cooking chamber heat from combustion of the gas and high frequency electric waves either separately or at the same time.
On the other hand, in such a combined high frequency electrical energy and gas heated cooking apparatus, gas and electricity as sources of power should be converted into gas combustion heat and high frequency electric waves, respectively, and such converted gas combustion heat and high frequency electric waves should be supplied to the cooking chamber in a good timed relationship according to the kind of cooking or preference of the user. The control device of such a cooking apparatus therefore becomes complicated and requires many component parts, so that the replacement and adjustment of such component parts become complicated.
Furthermore, it is desired in such a cooking apparatus to put together all the operational component parts in one place, and in such a case it is also desired to put together all related control means in one place. However, when all related control means are put together in one place, the control device inevitably becomes more complicated, resulting in an arrangement that the component parts for supplying gas combustion heat and the component parts for supplying high frequency electric waves are mixingly disposed.
Such arrangement then provokes great difficulty in the replacement and adjustment of respective parts, because the gas technics are different from the electric technics in the technological field and therefore gas supply parts are replaced and ajusted by a gas engineer and electric parts are replaced and adjusted by an electric engineer.
According to the present invention there is provided a combined high frequency electrical energy and gas heated cooking apparatus comprising; an outer casing having on one side an openable or removable closure plate for closing an opening formed in one side thereof, a cooking chamber formed within said outer casing, an openable door for closing the front opening of said cooking chamber in a heat-tight and electric wave-tight manner, a high frequency oscillator for supplying high frequency electric waves to said cooking chamber, a gas combustion chamber formed under said cooking chamber and provided with'gas burners for supplying gas combustion heat to said cooking chamber, a housing chamber defined by said outer casing and the side walls of said gas combustion chamber and of said cooking chamber, and to which access can be gained from outside of said outer casing by removal or opening of said closure plate, a control panel disposed on the front surface of said outer casing at the front side of said housing chamber, a plurality of housing spaces being formed in said housing chamber, and one of said plurality of housing spaces being formed at the lower portion of said housing chamber at the position corresponding to said gas combustion chamber, whereby a gas supply unit mainly comprising a gas cock, gas supply electromagnet valves and gas nozzles facing towards said gas burners is disposed in said lower housing space, and an electric unit including electric control means and a high voltage transformer for the high frequency oscillator being disposed in one of other housing spaces of said plurality of housing spaces.
An embodiment of the invention will be described, by way of an example, with reference to the accompanying drawings, in which Figure 1 is a perspective view of a combined high frequency electrical energy and gas heated cooking apparatus according to the present invention, with the side cover plate removed therefrom;
Figure 2 is a vertical section view of the cooking apparatus shown in Figure 1;
Figure 3 is a horizontal section view of the main portions of the gas supply unit;
Figure 4 is a perspective view of the gas nozzles and gas burners removed from the outer case; and
Figure 5 is a perspective view of the gas nozzles and the gas burners separated from each other.
The combined high frequency electrical energy and gas heated cooking apparatus shown in the drawings has an outer casing 1 which is provided on a lateral side thereof with an opening 2 which is closed by a removable or openable closure plate 3. This closure plate 3 can either be removably attached to the outer casing 1 by screws or pivoted to the outer casing 1 by hinge means. A cooking chamber 4 is formed within the outer casing 1. An openable door 5 is provided for closing the front opening of the cooking chamber 4 in a heat-tight and electric wave-tight manner.
A gas combustion chamber 6 is formed under the cooking chamber 4 in the outer casing 1 and is provided with gas burrrers 27 for supplying gas combustion heat to the cooking chamber 4 A housing chamber 7 is defined by the outer casing 1 and the side walls of the gas combustion chamber 6 and of the cooking chamber 4. This housing chamber 7 will be communicated with the outside of the outer case 1 by removing the closure plate 3.
An operation panel 8 is disposed on the front surface of the outer casing 1 at the front side of the housing chamber 7. Disposed on this operation panel 8 are a cooking temperature setting thermostat 9, a gas combustion heating timer-1 0, a high frequency heating timer 1 a select switch 12, a start button 1 3 and a cooking chamber illumination lamp switch 14. A gas cock lever 1 5 is disposed at the lower portion of the operation panel 8.
A lower housing space 7a is provided in the housing chamber 7 at the position corresponding to the gas combustion chamber 6. Disposed in this lower housing space 7a is a gas supply unit mainly comprising a gas cock 16, gas supply electromagnetic valves 1 7a and 1 7b and gas nozzles 1 8a and 1 8b.
An upper housing space 7b is provided in the housing chamber 7 at the position corresponding to the cooking chamber 4. Disposed in this upper housing space 7b are a high frequency oscillator 19 for supplying high frequency waves to the cooking chamber 4 and a blower motor 20 for cooling the high frequency oscillator 1 9. Disposed on a support stand 21 are a high voltage transformer 22, a high voltage condenser 23 and an electric control box 24 containing electric control means.
A diaphragm 25 is disposed between the gas combustion chamber 4 and the housing chamber 7, and an opening 26 is formed in the diaphragm 25 at the lower portion thereof.
A gas burner 27 is inserted into the gas combustion chamber 6 from the lower housing space 7a through the opening 26 and comprises an ignition or pilot burner 27a and a main burner 27bathe bases of which are fixed to and supported by a support plate 28.
An air control damper of the main burner 27b is generally designated at 29. A fixing plate .30 having an L-shaped cross-section is fixed to the bottom plate of the housing chamber 7. The support plate 28 is removably attached to this fixing plate 30 by screws 31.
The ignition nozzle 1 8a of the ignition burner 27a and the main nozzle 1 8b of the main burner 27b are fixedly mounted to a mounting plate 32.
Side pieces 33 projecting forwardly from the support plate 28 are formed integrally with the support plate 28 at both lateral sides thereof. By
means of screws 35, the mounting plate 32 is
removably attached to the flanges 34 formed as the front surfaces of the side pieces 33. With the
mounting plate 32 attached to the support plate
28, the ignition nozzle 1 8a and the main nozzle 1 8b face towards the ignition burner 27a and the
main burner 27b, respectively.
The ignition nozzle 1 8a and the main nozzle 1 8b are formed at one ends of gas supply pipes
36a and 36b, respectively, in a unitary construction therewith, and these gas supply
pipes 36a and 36b are integrally fixed to the
mounting plate 32. Joint means 37a and 37b are formed at the other ends of the gas supply pipes 36a and 36b, respectively. These joint means 37a and 37b are removably attached to the cocks of the gas supply- electromagnetic valves 1 7a and 17b, respectively, by screws 38.
A gas combustion heat supply chamber 39 is formed at the rear side of the cooking chamber 4 centrally concaved. This supply chamber 39 is communicated with the gas combustion chamber 6, thereby to supply gas combustion heat to the cooking chamber 4 through this supply chamber 39.
A circulator fan 40 is rotatably disposed in the supply chamber 39 and is driven by a motor47 disposed outside the supply chamber 39. Gas combustion heat in the gas combustion chamber 6 is agitated and supplied to the cooking chamber 4 by the rotation of the fan 40.
An exhaust pipe 42 is disposed at the upper portion of the supply chamber 39 and is communicated with exhaust ports 43 formed in the top surface of the outer casing 1.
Above the cooking chamber 4, a high frequency irradiation chamber 44 is formed as partitioned by a heat-resisting electric wave permeable member 45 such as a heat-resisting glass. High frequency electric waves are supplied to this chamber 44 from the high frequency oscillator 1 9 through an opening formed in the lateral side of the chamber 44. A stirrer 46 is rotatably disposed in the high frequency irradiation chamber 44.
An impeller 48 is rotatably disposed in a rotating drive chamber 47 disposed above the high frequency irradiation chamber 44 and at the outside of the cooking chamber 4. This impeller 48 is drivingly coupled to the stirrer 46 by a coupling shaft 49. Thus, air from the blower motor 20 cools the high frequency oscillator 19 and is then supplied to the rotating drive chamber 47 to rotate the impeller 48 and subsequently the stirrer 46, thereby to stir the high frequency electric waves supplied to the high frequency irradiation chamber 44 from the high frequency oscillator 1 9.
A smoke collecting chamber 50 is formed between the exhaust pipe 42 and the exhaust ports 43. The cooling air supplied to the rotating drive chamber 47 is discharged to the smoke collecting chamber 50, in which such cooling air is mixed with exhaust gas from the exhaust pipe 42, and then discharged from the exhaust ports 43.
As described hereinbefore, the combined high frequency electrical energy and gas heated cooking apparatus according to the present invention comprises the outer casing 1 having the openable or removable cover plate 3 for closing the opening 2 formed in one lateral side of the outer casing 1, the cooking chamber 4 formed within the outer casing 1, the openable door 5 for closing the front opening of the cooking chamber 4 in a heat-tight and electric wave-tight manner, the frequency oscillator 1 9 for supplying high frequency electric waves to the cooking chamber 4, the gas combustion chamber 6 formed under the cooking chamber 4 and provided with the gas burners 27a and 27b for supplying gas combustion heat to the cooking chamber 4, the housing chamber 7 defined by the outer case 1 and the side walls 25 of the cooking chamber 4 and of the gas combustion chamber 6, and adapted to be communicated with the outside of the outer casing 1 by removing the lid plate 3; and the operation panel 8 disposed on the front surface of the outer casing 1 at the front side of the housing chamber 7. The gas supply unit mainly comprising the gas cock 16, the gas supply electromagnetic valves 17a and 17b and the gas nozzles 1 8a and 1 8b facing to the gas burners 27a and 27b, is disposed in the lower position corresponding to the gas combustion chamber 6, and the electric unit including the electric control means and the high voltage transformer 22 for the high frequency oscillator are disposed in the upper housing space 7b in the housing chamber 7 at the position corresponding to the cooking chamber 4.Accordingly, the removal of the cover plate 3 alone permits the housing chamber 7 to be communicated with the outside of the outer casing 1 , thereby to facilitate the handling of the various component parts disposed in the housing chamber 7.
Furthermore, the gas supply unit and the electric unit are disposed generally separately in the lower space and the upper space in the housing chamber, respectively, so that a gas engineer may perform a replacement or adjustment operation on the gas component parts without taking the electric component parts into special consideration, and an electric engineer may perform a replacement or adjustment operation on the electric component parts without taking the gas component parts into special consideration, and such replacement and adjustment may therefore be performed very easily.
It is further noted that according to the present invention, the gas nozzles 1 8a and 1 8b and the gas burners 27a and 27b which may require to be replaced and adjusted are removably disposed in the housing chamber 7 to be communicated with the outside of the outer casing 1 merely by removing the cover plate 3, thereby to facilitate such replacement and adjustment operation.
Moreover, since the gas nozzles 1 8a and 1 8b are formed integrally with the joint means 37a and 37b for the gas supply electromagnetic valves 1 7a and 1 7b disposed in the housing chamber 7, these gas nozzles 1 8a and 1 8b may be removed with the operation of the screws 38 and 35 alone.
The gas burners 27a and 27b may be handled
in an easier way because the gas burners 27a and 27b are inserted into the gas combustion chamber
6 through the opening 26 in the diaphragm 25 between the gas combustion chamber 6 and the
housing chamber 7, and the bases of these gas
burners 27a and 27b are removably disposed in the housing chamber 7.
It is also to be noted that the gas burners 27a
and 27b together with the gas nozzles 1 8a and 1 8h may be removed by the operation of the
screws 31 and 38 alone, since the gas nozzles 1 8a and 1 8b are removably attached to the gas burners 27a and 27b.
It is a matter of course that the housing spaces formed in the housing chamber 7 are not limited to two housing spaces vertically partitioned from each other, but may separately be formed so as to house the gas supply unit and the electric unit respectively in a manner generally separated from each other.
Claims (7)
1. A combined high frequency electrical energy and gas heated cooking apparatus comprising; an outer casing having on one side an openable or removable closure plate for closing an opening formed in said one side thereof, a cooking chamber formed within said outer casing, an openable door for closing the front opening of said cooking chamber in a heat-tight and electric-wave tight manner, a high frequency oscillator for supplying high frequency electric waves to said cooking chamber, a gas combustion chamber formed under said cooking chamber and provided with gas burners for supplying gas combustion heat to said cooking chamber, a housing chamber defined by said outer casing and the side walls of said gas combustion chamber and of said cooking chamber, and to which access can be gained from outside of said outer casing by removal or opening of said closure plate, a control panel disposed on the front surface of said outer casing at the front side of said housing chamber, a plurality of housing spaces being formed in said housing chamber, and one of said plurality of housing spaces being formed at the lower portion of said housing chamber at the position corresponding to said gas combustion chamber, whereby a gas supply unit mainly comprising a gas cock, gas supply electromagnetic valves and gas nozzles facing towards said gas burners is disposed in said lower housing space, and an electric unit including electric control means and a high voltage transformer for the high frequency oscillator being disposed in one of other housing spaces of said plurality of housing spaces.
2. A combined high frequency electrical energy and gas heated cooking apparatus as claimed in claim 1, in which said gas nozzles are removably disposed in said housing chamber.
3. A combined high frequency electrical energy and gas heated cooking apparatus as claimed in claim 1 or claim 2, in which said gas burners are removably disposed in said housing chamber.
4. A combined high frequency electrical energy and gas heated cooking apparatus as claimed in claim 2, in which joint means for said gas supply electromagnetic valves disposed in'said housing chamber are formed integrally with said gas nozzles, and said joint means are removably attached to said electromagnetic valves and said gas nozzles are removably disposed in said housing chamber.
5. A combined high frequency electrical energy and gas heated cooking apparatus as claimed in claim 3, in which said gas burners are inserted into said gas combustion chamber through an opening in a diaphragm and the bases of said gas burners are removably disposed in said housing chamber.
6. A combined high frequency electrical energy and gas heated cooking apparatus as claimed in claim 3, in which said gas nozzles are removably attached to said gas burners.
7. A combined high frequency electrical energy and gas heated cooking apparatus substantially as hereinbefore described with reference to and as illustrated in the accompanying drawings.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10580878U JPS5832083Y2 (en) | 1978-07-31 | 1978-07-31 | Gas combined cooking device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| GB2028618A true GB2028618A (en) | 1980-03-05 |
| GB2028618B GB2028618B (en) | 1983-02-02 |
Family
ID=14417397
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB7925475A Expired GB2028618B (en) | 1978-07-31 | 1979-07-20 | Combined high frequency electrical energy and gas heated cooking apparatus |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JPS5832083Y2 (en) |
| AU (1) | AU523739B2 (en) |
| GB (1) | GB2028618B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2127658A (en) * | 1982-07-17 | 1984-04-11 | Microwave Ovens Ltd | Microwave ovens and methods of cooking food |
| GB2220740A (en) * | 1988-06-28 | 1990-01-17 | New World Domestic Appliances | Pre-heating cooking ovens |
| GB2255397A (en) * | 1991-05-02 | 1992-11-04 | Samsung Electronics Co Ltd | Control panel arrangement for microwave ovens. |
-
1978
- 1978-07-31 JP JP10580878U patent/JPS5832083Y2/en not_active Expired
-
1979
- 1979-07-20 GB GB7925475A patent/GB2028618B/en not_active Expired
- 1979-07-23 AU AU49142/79A patent/AU523739B2/en not_active Ceased
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2127658A (en) * | 1982-07-17 | 1984-04-11 | Microwave Ovens Ltd | Microwave ovens and methods of cooking food |
| GB2220740A (en) * | 1988-06-28 | 1990-01-17 | New World Domestic Appliances | Pre-heating cooking ovens |
| GB2220740B (en) * | 1988-06-28 | 1992-04-15 | New World Domestic Appliances | Cooking ovens |
| GB2255397A (en) * | 1991-05-02 | 1992-11-04 | Samsung Electronics Co Ltd | Control panel arrangement for microwave ovens. |
Also Published As
| Publication number | Publication date |
|---|---|
| AU523739B2 (en) | 1982-08-12 |
| JPS5522074U (en) | 1980-02-13 |
| AU4914279A (en) | 1980-02-07 |
| GB2028618B (en) | 1983-02-02 |
| JPS5832083Y2 (en) | 1983-07-16 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PCNP | Patent ceased through non-payment of renewal fee |