SE434902B - Cavity for microwave ovens - Google Patents

Cavity for microwave ovens

Info

Publication number
SE434902B
SE434902B SE8207382A SE8207382A SE434902B SE 434902 B SE434902 B SE 434902B SE 8207382 A SE8207382 A SE 8207382A SE 8207382 A SE8207382 A SE 8207382A SE 434902 B SE434902 B SE 434902B
Authority
SE
Sweden
Prior art keywords
cavity
opening
oven
walls
around
Prior art date
Application number
SE8207382A
Other languages
Swedish (sv)
Other versions
SE8207382L (en
SE8207382D0 (en
Inventor
J A C Gustafsson
Original Assignee
Philips Svenska Ab
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Philips Svenska Ab filed Critical Philips Svenska Ab
Priority to SE8207382A priority Critical patent/SE434902B/en
Publication of SE8207382D0 publication Critical patent/SE8207382D0/en
Publication of SE8207382L publication Critical patent/SE8207382L/en
Publication of SE434902B publication Critical patent/SE434902B/en

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24CDOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C7/00Stoves or ranges heated by electric energy
    • F24C7/02Stoves or ranges heated by electric energy using microwaves
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05BELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B6/00Heating by electric, magnetic or electromagnetic fields
    • H05B6/64Heating using microwaves
    • H05B6/6402Aspects relating to the microwave cavity

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Electric Ovens (AREA)

Abstract

The invention relates to a cavity A for microwave ovens, which have a front F that surrounds an access opening to the cavity. The opening is closed by a flap B which interacts with the oven front F so that when the flap is closed a gap, which is delimited on the one side by the oven front and on the other side by the outer parts of the flap B, is formed from the inside of the cavity A to the space outside the cavity, with an inlet opening for a damping choke D opening out into the said gap. According to the invention, the oven front F is integrated with the cavity walls G around the access opening and consists of parts of the said walls that are bent inwards, whereby seams at the front of the oven are eliminated. <IMAGE>

Description

szovsaz-6 z I fig la) visas ett snitt genom fronten av en kavitet A med tillhöran- de ugnslucka B som är försedd med en dämpchoke C i det fall att fronten och luckan är plana och ligger i åtkomstöppningens plan. Fronten består här av i rät vinkel inbóckade, förstansade partier F av kavitetsväggen G och avslu- tas av en omböjd eller dubbelvikt del E som bildar förstyvning. I fig lb) är fronten utbildad som en dämpchoke D vilken är framställd genom ett antal bockningar av förstansade partier av kavitetsväggen G, medan luckan har en luckram H som har ett trappstegsformat tvärsnitt för att bilda en transmis- sionsväg för läckenergin förbi chokens ingångsöppning. I fig lc), som är principiellt lika med fig la), är bhoken åter belägen i luckan men choken och fronten har en något annorlunda utformning än i fig la). szovsaz-6 z Fig. 1a) shows a section through the front of a cavity A with associated the oven door B provided with a damping choke C in the case of the front and the door is flat and located in the plane of the access opening. The front here consists of at right angles bent, pre-punched portions F of the cavity wall G and closed is taken by a bent or double weight part E which forms stiffening. In Fig. 1b) the front is formed as a damping choke D which is produced by a number bends of punched portions of the cavity wall G, while the door has one door frame H having a stepped cross-section to form a transmission sion path for the leakage energy past the choke entrance opening. In Fig. 1c), which is in principle equal to Fig. 1a), the bhook is again located in the door but the choke and the front has a slightly different design than in Fig. 1a).

Fig 2 och 3 visar en perspektivvy framifrån respektive bakifrån av en ugnskavitet som har en front enligt fig la) och är samanfogad genom fals- ning. Hela kaviteten är uppbyggd av två plåtbitar, en bit som är bockad till ett U och bildar kavitetens botten 10 och sidoväggar ll, 12 och en bit som är bockad till ett L och bildar kavitetens tak 13 och bakvägg lä. Såsom bäst framgår av fig 3 blir det därvid totalt fem fogar 15, 16, 17, 18 och 19.Figures 2 and 3 show a perspective view from the front and rear of one, respectively furnace cavity having a front according to Fig. 1a) and is joined by folding ning. The entire cavity is made up of two pieces of sheet metal, one piece which is bent a U and forms the bottom 10 of the cavity and side walls 11, 12 and a piece which is bent to an L and forms the roof 13 of the cavity and the back wall shelter. As the best As can be seen from Fig. 3, there will be a total of five joints 15, 16, 17, 18 and 19.

Den integrerade frontens tvärsnitt är antytt vid 20. 7 Framställningen är mycket enkel. Man kan utgå från en vanlig obehandlad järnplåt eïler förlackerad plåt och stansar ut två bitar i ett mönster som passar för att bilda de nämnda två U-formiga respektive L-formiga bitarna i den färdiga kaviteten. Efter eventuell lackering bockas de stansade plåtarna i flera steg till en form med integrerad front och utskjutande kanter, som är lämpade för att bilda falsförband. Därefter sätts de båda bitarna ihop ' och falsning utföres genom ombockning av de utskjutande kanterna. Kaviteten är nu färdig och inga ytterligare arbetsoperationer krävs.The cross section of the integrated front is indicated at 20. 7 The preparation is very simple. One can start from a regular untreated sheet iron or lacquered sheet metal and punch out two pieces in a pattern that suitable for forming the said two U-shaped and L-shaped pieces i the finished cavity. After any painting, the punched plates are bent in several steps to a shape with integrated front and projecting edges, which are suitable for forming seams. Then the two pieces are put together ' and folding is performed by bending the protruding edges. The cavity is now complete and no further work operations are required.

Fig Å visar en perspektivisk sprängskiss av de två bitarna av en kavi- tet med dämpchoke i fronten omedelbart före slutsammanfogningen. Även i detta fall sätts kaviteten samman av två bitar, en U-formad 21 och en L-formad 22, vilka fogas samman genom totalt fem falsförband. Den färdiga kaviteten är vi- sad i fig 5 där den integrerade fronten med choke är antydd vid 23.Fig. Å shows a perspective exploded view of the two pieces of a cavity. with damping choke in the front immediately before the final joint. Even in this In this case, the cavity is composed of two pieces, a U-shaped 21 and an L-shaped 22, which are joined together by a total of five rebate joints. The finished cavity is vi- sat in Fig. 5 where the integrated front with choke is indicated at 23.

Framställningen kan ske genom användning av känd teknik, t ex genom bock- ning i kantpress, genom bockning plus rullformning av profil samt användning av konventionella vikutrustningar.The preparation can be done by using known techniques, for example by bending. edge press, by bending plus roll forming of profile and use of conventional folding equipment.

Claims (2)

8207382-6 Patentkrav8207382-6 Patent claims 1. Av elektriskt ledande väggar bestående ugnskavltet för mikrovågsugnar, vilken kavitet har en åtkomstöppning med en runt öppningen förlöpande ugns- front avsedd att samverka med en ugnslucka, som tillsluter nämnda öppning, varvid en dämpchoke är anordnad i läckenergins väg runt öppningen, k ä n n e- t e c k n a d av att dämpchoken är Integrerad med kavitetsväggarna omkring öppningen och består av bockade partier av nämnda väggar, vilka samtidigt bildar ugnsfront.An electrically conductive wall consisting of the microwave oven furnace wall, the cavity having an access opening with an oven front extending around the opening intended to cooperate with an oven door closing said opening, a damping choke being arranged in the path of the leakage energy around the opening, e- characterized in that the damping choke is integrated with the cavity walls around the opening and consists of bent portions of said walls, which at the same time form a furnace front. 2. Kavitet enligt patentkravet I, k ä n n e t e c k n a d av att väggar- na runt öppningen är bockade inåt.Cavity according to Claim I, characterized in that the walls around the opening are bent inwards.
SE8207382A 1982-12-23 1982-12-23 Cavity for microwave ovens SE434902B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SE8207382A SE434902B (en) 1982-12-23 1982-12-23 Cavity for microwave ovens

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE8207382A SE434902B (en) 1982-12-23 1982-12-23 Cavity for microwave ovens

Publications (3)

Publication Number Publication Date
SE8207382D0 SE8207382D0 (en) 1982-12-23
SE8207382L SE8207382L (en) 1984-06-24
SE434902B true SE434902B (en) 1984-08-20

Family

ID=20349134

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8207382A SE434902B (en) 1982-12-23 1982-12-23 Cavity for microwave ovens

Country Status (1)

Country Link
SE (1) SE434902B (en)

Also Published As

Publication number Publication date
SE8207382L (en) 1984-06-24
SE8207382D0 (en) 1982-12-23

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