CN2809471Y

CN2809471Y - Microwave oven

Info

Publication number: CN2809471Y
Application number: CN 200520026383
Authority: CN
Inventors: 金基焕
Original assignee: LG Electronics Tianjin Appliances Co Ltd
Current assignee: LG Electronics Tianjin Appliances Co Ltd
Priority date: 2005-06-27
Filing date: 2005-06-27
Publication date: 2006-08-23
Anticipated expiration: 2015-06-27

Abstract

The utility model provides a microwave oven. The structure of the utility model comprises a heating chamber, a heater and a heater cover, wherein the heating chamber which is used for cooking inside is arranged in an oven cavity assembly, the heater is arranged on an upper panel which forms the upper surface of the oven cavity assembly, and the heater cover is used for closing the heater, the upper part plate is provided with a through hole, and a plurality of convex columns are arranged around the through hole of the upper part plate; a plurality of installing holes of the convex columns, which correspond to the convex columns, are arranged on the heater cover. The utility model has the effects that the structure is used, a base seat of the heater and the heater cover are used for avoiding the direct contact of the upper part plate and the heater, so the base seat of the heater and the heater cover are made of stainless steel, and the upper part plate can be made of other cheap materials. Therefore, the utility model has the advantages of easy processing technique and low manufacture cost.

Description

Micro-wave oven

Technical field

The utility model is about micro-wave oven, particularly the cover of heater of micro-wave oven and heater base mounting structure.

Background technology

Usually, micro-wave oven is to utilize the supply electric current to produce microwave, and the device that microwave irradiation is heated to the heating object.

Existing micro-wave oven mainly adopts the mode that microwave irradiation is cooked to the heating object of heating clamber inside, and because this mode of heating of microwave that utilizes has unicity, therefore nearest micro-wave oven has been set up heater in inside, as another heating source.

Be divided into the hot-air of mode after that utilizes convection current as the heater of auxiliary thermal source and deliver to the grill heater that the convection heater that heats on the heating object in the heating clamber and the hot line that utilizes heater heating back radiation are heated the heater heating.

Here, the heater mounting structure that is arranged on the existing micro-wave oven on the upper board for the heater with grid function describes.

As shown in Figure 1, possessed the heating clamber 20 of cooking in furnace chamber assembly 10 inside, and be provided with electric control chamber 40 in the side of furnace chamber assembly 10 in inside.

And, being provided with magnetron 50 in electric control chamber 40 inside, the electric component of high-tension transformer 60 grades produces microwave thus, and antenna or the waveguide 70 of microwave by magnetron 50 shines heating clamber 20 inside.

And shell 80 surrounds the top and two sides outward appearance that described furnace chamber assembly 10 constitutes micro-wave oven.

And, optionally communicate in order to make heating clamber with the external world, fire door 90 has been arranged on the front panel 11 of the front that constitutes furnace chamber assembly 10, and fire door 90 is forming most of micro-wave oven front outward appearance.

At this moment, be provided with cover of heater 100 on the top panel 12 on constitute heating clamber 20, and be provided with heater 30 in described cover of heater 100 inside.

Simultaneously, heating object is held in place on the rotating disk of heating clamber 20 central authorities, when rotating disk rotates, is arranged on the heating object on heater 30 Heating rotary-discs above the heating clamber.

Fig. 2 is a stereogram of expressing existing micro-wave oven upper board from the side, and Fig. 3 is the stereogram that cover of heater is set on existing micro-wave oven upper board, and Fig. 4 is the existing concise and to the point profile that the upper board of cover of heater is set.

As shown in Figure 2, be provided with and possessed the through-hole section 18 that has several through holes 18a to constitute that to transmit heater 30 heats on the upper board 12 of heater.

At this moment, described upper board 12 adopts hear resistance, corrosion resistance and the good stainless steel manufacturing of reflectivity in order to bear described heater liberated heat.

Simultaneously, as shown in Figure 3, on the upper side of described top panel 12, be provided with cover of heater 100, and cover of heater 100 utilizes the mode of welding that setting is installed.

And, be provided with heater 30 in described cover of heater 100 inside, and the hot line of heater 30 by with the upper board of the position opposite that cover of heater 100 is set on the through-hole section 18 that constitutes by a plurality of through hole 18a that forms shine heating clamber 20 inside.

But aforesaid existing cover of heater mounting structure produces following problem.

Described cover of heater adopts the mode of welding to be arranged on the upper board, but weld job at this moment and be not easy operation.

And, in order to improve durability, adopt hear resistance, corrosion resistance, good stainless steel material to make with upper board that heater directly contacts, and because stainless steel processing difficulties not only, and the price height.Therefore, will improve the manufacturing cost of product.

Summary of the invention

It is a kind of in the micro-wave oven of internal heater that the purpose of this utility model is to provide, and is equipped with the heater base of porous separately, and adopt the method that is more prone to heater base and cover of heater to be arranged on the micro-wave oven of the structure on the upper board.

For achieving the above object, the technical solution adopted in the utility model provides a kind of micro-wave oven, its structure includes in the furnace chamber component internal and is provided with the heating clamber of cooking in inside, top panel above the formation furnace chamber assembly is provided with the cover of heater of heater and closed heater, wherein: described upper board is provided with through hole, and around the through hole of upper board, being provided with a plurality of prominent cylinders, described cover of heater is provided with the prominent cylinder installing hole of corresponding described a plurality of prominent cylinders.

Between described upper board and cover of heater, be provided with the heater base.

Described heater base is provided with and the corresponding prominent cylinder installing hole of a plurality of prominent cylinder on the upper board.

Described heater base is provided with a plurality of through hole of the heat that transmits described heater.

Described cover of heater and heater base all adopt stainless steel material to make.

Effect of the present utility model is to adopt above structure, utilize heater base and cover of heater to avoid upper board directly to contact with heater, therefore just adopt stainless steel to make heater base and cover of heater, and upper board can adopt other cheap materials to make, therefore processing technology is easy, can reduce manufacturing cost.

Description of drawings

Fig. 1 is the exploded perspective view of general micro-wave oven;

Fig. 2 is a stereogram of expressing existing micro-wave oven upper board from the side;

Fig. 3 is the stereogram that cover of heater is set on existing micro-wave oven upper board;

Fig. 4 is the existing part sectioned view that the upper board of cover of heater is set;

Fig. 5 is the exploded perspective view of micro-wave oven of the present utility model;

Fig. 6 is the stereogram that cover of heater and heater base are set on upper board of the present utility model;

Fig. 7 a and 7b utilize prominent cylinder that the partial side sectional view of cover of heater and heater base is set on upper board.

Among the figure:

220: cover of heater 240b: prominent cylinder

240:

upper board

220h, 300h: prominent cylinder installing hole

260: through hole 300: the heater base

The specific embodiment

Reaching embodiment is in conjunction with the accompanying drawings described in detail micro-wave oven of the present utility model.

Simultaneously, for convenience of description, part same as the prior art is in the following description used identical symbol description.

As shown in Figure 5, the micro-wave oven of the utility model design has been equipped with furnace chamber assembly 10 in inside, and has possessed heating clamber 20 in furnace chamber assembly 10 inside, and is provided with electric control chamber 40 in the side of described furnace chamber assembly 10.

And, be provided with the cover of heater 220 of heater 30 and closed heater 30 on the top panel 240 on constitute furnace chamber assembly 10.

At this moment, describe cover of heater 220 in detail as Fig. 6 and structure is set as can be known, be provided with through hole 260 on described upper board 240, the heat that heater 30 is discharged is supplied to heating clamber inside thus, and is provided with a plurality of prominent cylinder 240b around described through hole 260.

At this moment, corresponding described prominent cylinder 240b is provided with the prominent cylinder installing hole 220h of respective numbers on cover of heater 220.

And, between described upper board 240 and cover of heater 220, be provided with heater base 300, and on heater base 300, be provided with the prominent cylinder installing hole 300h of the prominent cylinder 240b of corresponding described top panel 240 equally, and, be provided with a lot of through hole 300a in order to give heating clamber internal delivery heat.

Described cover of heater 220 and heater base 300 should adopt stainless steel material to make.

As above the effect of Shuo Ming the embodiment of the invention is as follows.

At first, align with prominent cylinder 240b on the upper board 240-, insert after the prominent cylinder installing hole 300h of heater base 300, prominent cylinder installing hole 220h on the cover of heater 220 is inserted in alignment more in the above.

Then, break prominent cylinder 240b into two with one's hands, described heater base 300 and cover of heater 220 are arranged on the upper board 240 simultaneously to the side.

Thus, upper board can directly not contact with heater, thereby top panel can not adopt the good stainless steel material of heat resistance, utilizes other cheap materials to make and can not produce any influence yet.

And, owing to utilized prominent cylinder to install, therefore do not adopt the mode of welding just can install.

Aforesaid scope of the present utility model is not limited to embodiment, and in constructed field, technical staff of the same trade can propose any other method on basis of the present utility model.

Claims

1, a kind of micro-wave oven, its structure includes in the furnace chamber component internal and is provided with the heating clamber of cooking in inside, and the top panel above the formation furnace chamber assembly is provided with the cover of heater of heater and closed heater, it is characterized in that:

Described upper board (240) is provided with through hole (260), and being provided with a plurality of prominent cylinders (240b) on every side at the through hole (260) of upper board (240), described cover of heater (220) is provided with the prominent cylinder installing hole (220h) of corresponding described a plurality of prominent cylinders (240b).

2, micro-wave oven according to claim 1 is characterized in that:

Between described upper board (240) and cover of heater (220), be provided with heater base (300).

3, micro-wave oven according to claim 2 is characterized in that: described heater base (300) is provided with and the corresponding prominent cylinder installing hole (300h) of a plurality of prominent cylinder (240b) on the upper board (240).

4, micro-wave oven according to claim 2 is characterized in that: described heater base (300) is provided with a plurality of through hole (300a) of the heat that transmits described heater (30).

5, micro-wave oven according to claim 2 is characterized in that: described cover of heater (220) and heater base (300) all adopt stainless steel material to make.