CN1769788A

CN1769788A - Framework structure of microwave oven door

Info

Publication number: CN1769788A
Application number: CN 200410072600
Authority: CN
Inventors: 吴圭镐
Original assignee: LG Electronics Tianjin Appliances Co Ltd
Current assignee: LG Electronics Tianjin Appliances Co Ltd
Priority date: 2004-11-03
Filing date: 2004-11-03
Publication date: 2006-05-10

Abstract

The invention discloses a frame structure of microwave oven door, which comprises the following parts: front panel with central part projection pattern toward front arc, framework on the back of front panel and up periphery corresponding to the front panel curvature.

Description

The frame structure of door for microwave oven

Technical field

The present invention relates to micro-wave oven, the shape correspondence of panel forwards forms the frame structure of the door for microwave oven of arc in front of the framework upper end shape of especially relevant door for microwave oven.

Background technology

Micro-wave oven is to produce microwave and shine the device that food comes heat food by magnetron.Micro-wave oven roughly is divided into and is placed on the general micro-wave oven that uses on the kitchen furniture and is installed in the top of gas burning roastor and has the air draft dual-purpose micro-wave oven of degassing function.The door of micro-wave oven is divided into common side open and close type structure and is the pull-down structure opened to the bottom from top of center etc. with the bottom of hinge combination.

As shown in Figure 1, the fuselage 10 of the pull-down micro-wave oven of prior art forms the micro-wave oven overall structure.Fuselage 10 is by the cooking room 20 that carries out cooking food with in the electricity Tibetan portion 35 of the cooking thing cooking of 20 li of the top of cooking room 20 control cooking rooms.

Cooking room 20 opens and closes by door 30 selectivity.The inlet that door 30 is closed cooking room 20 prevents that harmful microwave etc. from leaking into the outside of cooking room 20.Behind end of cooking, open door 30 and can take out the cooking thing.Door 30 hinges 34 with cooking room 20 bottoms are that the center rotation opens and closes.

Be equipped with the locking 32 of when door 30 opens and closes, playing the hook effect in the inboard of door 30.Locking 32 is inserted into a side of fuselage 10 by the obturator hernia 12 of fuselage 10 fronts one side, and keeper plate (not shown) combination with fuselage 10 inner sides contacts microswitch (not shown) simultaneously.

Described locking 32 has the effect of hook, plays the effect of keeping door 30 closed conditions, but also plays the effect of perception door 30 closed conditions, makes micro-wave oven stop to cook under door 30 open states.Play preventing under door 30 opened state, to produce harmful microwave, prevent that harmful microwave leakage is to cooking room 20 outsides.

Be equipped with electric Tibetan portion 35 on the top of fuselage 10, control micro-wave oven running when control generates microwave.In addition, also be equipped with display window to outside microwave oven operating condition.

As shown in Figure 2, the door 30 of micro-wave oven comprises the frame section 40 that is combined in cooking room 20 the place ahead downsides, is attached to the place ahead of frame section 40 and the joint portion 60 that forms the preceding subsides portion 50 that sees outdoors, frame section 40 and preceding subsides portion 50 are mutually combined.

Frame section 40 comprises framework 41 that is combined in the metal material on the fuselage 10 rotationally and the sealing ring 42 that is installed in framework 41 sides of front part direction.

Framework 41 is made of metal material in order to prevent the microwave penetration of cooking room 20 inside, and forms frame aperture 41a at the central portion of framework 41.

Frame aperture 41a is for the inside from door 30 visual observation cooking rooms 20.But inner microwave should not be leaked to the outside by frame aperture 41a, and is so the diameter of frame aperture 41a is below the 2.5mm, short than the wavelength of microwave.

Sealing ring 42 is in order to prevent that microwave leakage is to portion outdoors and be close to seal washer (not shown) on the framework 41.That is, expose externally for the shape of the complexity that prevents seal washer, sealing ring 42 is attached to the seal washer outside.

Peripheral top also is equipped with backplate 45 on framework 41.In order to make backplate 45 fronts have the curvature corresponding with front panel 51, central portion forwards arc protrudes definite part.The reason of Xing Chenging is like this: framework 41 is linear patterns, can come slit between closed frame 41 and the front panel 51 by backplate 45.

At the following peripheral 41c of frame section 40 in conjunction with lower supporting plate 43.Lower supporting plate 43 usefulness screws are combined in down peripheral 41c, play on frame section 40 to play a part to support preceding subsides portion 50 bottoms during subsides portion 50 before fixing.

Preceding subsides portion 50 is attached to frame section 40 the place aheads, forms the overall appearance of door 30.Preceding subsides portion 50 is made of front panel 51 that is affixed on frame section 40 and the handle 53 that is installed in front panel 51 outsides.

Front panel 51 is main with can't being made by the glass of the thermosolization of cooking room 20 inside from visual observation cooking room 20 inside, and its central portion forwards protrudes and forms arc.A side of plate 51 forms the glass orifice 51a for attached subsides front panel 51 on frame section 40 in front.

The handle 53 of selectivity shutter door 30 is installed in the outside of plate 51 in front.In order to make the easy shutter door 30 of user, the handle 53 main cylindrical tube of using.In addition, being fastened on protruding from handle 53 in conjunction with screw 54 on the joint portion 60 forms.

Joint portion 60 is in conjunction with frame section 40 and preceding subsides portion 50.Joint portion 60 is made of the nut 63 that combines screw 54 combinations that protrudes in conjunction with the carriage 61 of handle 53, with bracket hole 61a from carriage 61 in glass orifice 51a, the packing ring 65 that is used for combination.

Carriage 61 is with word shape warpage, and the upper side of panel 51 contacts in front of the warpage face of a side, and the warpage face of opposite side is inserted into the warpage basifacial on framework 41 tops, with the warpage basifacial contact on framework 41 tops.In addition, on the upside warpage face of carriage 61, form a plurality of carriage combined hole 61b in conjunction with screw etc.

But prior art has following shortcoming: for the slit between closed frame 41 and the front panel 51, be connected and fixed other backplate 45 with screw, number of components increases, and has production costs height, the too much shortcoming of flow chart.

Summary of the invention

Technical problem to be solved by this invention is, provides a kind of and needn't be equipped with other parts, also can the closing door framework and front panel between the frame structure of door for microwave oven in slit.

For the technical solution problem, the technical solution used in the present invention is: a kind of frame structure of door for microwave oven, the door of described micro-wave oven comprise by central portion forwards arc protrude the front panel of moulding and in front the rear of plate constitute the framework of the skeleton of door, be formed with above the framework front end central portion forwards arc protrude and have the curvature corresponding with front panel go up the periphery.

The invention has the beneficial effects as follows: manufacturing cost descends, production process reduces.

Description of drawings

Fig. 1 is the stereogram of general micro-wave oven.

Fig. 2 is the door for microwave oven exploded perspective view of prior art.

Fig. 3 is the door for microwave oven exploded perspective view of door for microwave oven frame structure of the present invention.

Fig. 4 is the practical state part of the door for microwave oven stereogram of door for microwave oven frame structure of the present invention.

Among the figure:

40: frame section 41: framework

42: sealing ring 43: lower supporting plate

50: preceding subsides portion 51: front panel

53: handle 60: joint portion

61: carriage

The specific embodiment

Below in conjunction with the drawings and specific embodiments the present invention is described in further detail, for using same-sign to describe with the identical part of prior art structure.

Shown in Fig. 3,4, the door 30 of micro-wave oven of the present invention comprises the frame section 40 that is combined in cooking room 20 the place ahead downsides, be attached to the joint portion 60 that frame section 40 the place aheads form the preceding subsides portion 50 that sees outdoors, frame section 40 and preceding subsides portion 50 are mutually combined.

Frame section 40 comprises the framework 41 that is combined in the metal material on the fuselage 10 rotationally, is installed in the sealing ring 42 of framework 41 sides of quadrate part direction forward.

Framework 41 is the parts that constitute the door skeleton, in order to prevent the microwave penetration of cooking room 20 inside, makes of metal material.Central portion at framework 41 forms a plurality of frame aperture 41a.Frame aperture 41a is for visual observation cooking room 20 inner formation the from door 30.In order to prevent that inner microwave from leaking into the outside by frame aperture 41a, so the diameter of frame aperture 41a will form the wavelength weak point than microwave, 2.5mm is following to be best.

In order to prevent that microwave leakage from arriving the outside of door, sealing ring 42 is close on the seal washer (not shown) of framework 41.That is, for the complicated shape that prevents seal washer exposes externally, sealing ring 42 is installed in the outside of seal washer.

Last peripheral 41b above the framework 41 constitute the front end central portion structure of arc protrusion forwards, have the curvature corresponding with front panel 51.That is, the last peripheral 41b above the framework 41 with the central portion be the center forwards arc prolong and form, and seal slit between the framework 41 of direction straight line formation to the left and right and the front panel 51.

In addition, at the following peripheral 41c of frame section 40 in conjunction with lower supporting plate 43.Lower supporting plate 43 utilizes screw to be combined in down peripheral 41c, play on frame section 40 fixing before during subsides portion 50, support the effect of preceding subsides portion 50 bottoms.

Preceding subsides portion 50 is attached to the overall appearance that frame section 40 the place aheads form door 30.Preceding subsides portion 50 is made of front panel 51 that is affixed on frame section 40 and the handle 53 that is installed in front panel 51 outsides.

Front panel 51 mainly can't be made by the glass that the heat of cooking room 20 inside dissolves of observing cooking room 20 inside from external energy, and its central portion forwards protrudes the formation arc.For front panel 51 is attached to frame section 40, a side of plate 51 forms glass orifice 51a in front.

The outside of plate 51 is installed as the handle 53 of selectivity shutter door 30 in front.In order to make the easy shutter door 30 of user, the handle 53 main cylindrical tube of using.Being fastened on protruding from handle 53 in conjunction with screw 54 on the joint portion 60 forms.

Carriage 61 is with word shape warpage, and the upper side of panel 51 contacts in front of the warpage face of a side, and the warpage face of opposite side is inserted into the warpage basifacial on framework 41 tops, with the warpage basifacial contact on framework 41 tops.On the upside warpage face of carriage 61, form a plurality of carriage combined hole 61b in conjunction with screw etc.

Specify the process of utilizing the preceding subsides portion 50 of carriage 61 assemblings below: the glass orifice 51a that connects on the front panels 51 in conjunction with screw 54 on the handle 53 protrudes to the outside.To glass orifice 51a outside protrude in conjunction with screw 54 through brackets 61, and to carriage 61 outsides protrude in conjunction with screw 54 in conjunction with nut 63, the assembling of preceding subsides portion 50 is finished.Insert packing ring 65 separately between front panel 51 and the carriage 61 and between carriage 61 and the nut 63, strengthen the adhesion of each parts.

In addition, insert carriage 61 opposite sides in the last peripheral 41b bottom above framework 41 warpage faces perpendicular to carriage 61 1 sides of front panel 51 combinations.Then, use the screw combination behind the through hole 41b ' on the consistent alignment frame 41 top warpage faces and the carriage combined hole 61b of carriage 61, the combination on frame section 40 front subsides portions 50 tops is finished.

Process in conjunction with frame section 40 bottoms and preceding subsides portion 50 is as follows: for the bottom of subsides portion 50 before preceding subsides portion 50 is in conjunction with the state lower support on frame section 40 tops, at the fixing lower supporting plate 43 of frame section 40.Then, in the insertion groove 43a of lower supporting plate 43, insert front panel 51, the bottom of subsides portion 50 before supporting.Afterwards, the opposite side bolt of lower supporting plate 43 is combined in the following peripheral 41c of framework 41.Thus, the lower junction of preceding subsides portion 50 is combined on the frame section 40.

If preceding subsides portion 50 and frame section 40 combinations, then the last peripheral 41b above the framework 41 forwards arc protrude, so the slit between framework 41 and the front panel 51 is sealed by the last peripheral 41b above the framework 41.

The present invention does not limit in the above-described embodiments, and one of ordinary skill in the art can be carried out multiple improvement in the claim scope.

Door for microwave oven frame structure of the present invention, framework top for the shape correspondence of front panel specified portions forwards arc protrude.That is, forwards prolong former before this always the framework of line above, make framework above have in front of the curvature of curvature correspondence of panel, so the back, upper end of front panel is close in the top last periphery of framework.Therefore, needn't be equipped with other parts also can closed frame and front panel between the slit, and do not need backplate of the prior art, in conjunction with parts such as screws, can reduce the manufacturing cost of micro-wave oven.Because the whole number of components of micro-wave oven reduces, required flow chart also reduces when making micro-wave oven.

Claims

1, a kind of frame structure of door for microwave oven, the door of described micro-wave oven comprise by central portion forwards arc protrude the front panel of moulding and in front the rear of plate constitute the framework of the skeleton of door, it is characterized in that being formed with above the framework (41) the front end central portion forwards arc protrude and have the curvature corresponding with front panel (51) upward periphery (41b).