CN101893266B

CN101893266B - Microwave oven

Info

Publication number: CN101893266B
Application number: CN2010102242986A
Authority: CN
Inventors: 付远华; 余科帆; 茅忠群; 诸永定
Original assignee: Ningbo Fotile Kitchen Ware Co Ltd
Current assignee: Ningbo Fotile Kitchen Ware Co Ltd
Priority date: 2010-07-06
Filing date: 2010-07-06
Publication date: 2011-11-30
Anticipated expiration: 2030-07-06
Also published as: CN101893266A

Abstract

The invention relates to a microwave oven, which comprises a machine body, a microwave generator and a microwave stirrer, wherein the machine body is provided with a furnace chamber; a microwave feed inlet is formed on the inner wall of the furnace chamber; the microwave generator is arranged in the machine body and is communicated with the microwave feed inlet; and the microwave stirrer is arranged at the microwave feed inlet and is used for stirring microwaves to distribute the microwaves uniformly. The microwave oven is characterized in that: the microwave stirrer comprises a motor and a stirring blade; the motor is provided with an output shaft; a holding part connected with the output shaft is arranged on the middle part of the stirring blade; and finned blades extend out of the stirring blade radially. Compared with the prior art, the microwave oven has the advantages that: by increasing the extended finned blades, the distribution of the microwaves is improved, and the uniformity of the microwaves is improved substantially; and thus the cooking effect of food is improved and the heat efficiency is improved greatly.

Description

Micro-wave oven

Technical field

The present invention relates to a kind of micro-wave oven.

Background technology

Existing micro-wave oven kind is a lot, rotating disc type is arranged, flat, common micro-wave oven comprises body, microwave generator and microwave stirrer, body has furnace chamber, the furnace chamber inwall has a microwave feed-in mouth, microwave generator is located in the body and with microwave feed-in mouth and is communicated, generally include magnetron and waveguide, microwave stirrer is located at microwave feedback porch, microwave stirrer can rotate, be used to stir microwave and be beneficial to even microwave distribution, set-up mode is a lot, but in the majority to be located at the furnace chamber bottom, as application number is that (publication number: CN1978999A), this application is located at the furnace chamber bottom with agitation fan structure in 200510122147.9 Chinese invention patent application open " agitation fan structure of rotary-wave type microwave oven ".Similarly, can also application reference number be open " agitation fan of micro-wave oven " (publication number: CN1704652A) etc. of Chinese invention patent application of 200410019356.6.Also having to be installed in the furnace chamber sidepiece, is that (Granted publication number: CN201007511Y), this patent is located at furnace chamber one side with agitator assembly for the Chinese utility model patent " dull and stereotyped micro-wave oven " of ZL200720048293.6 as the patent No..

Summary of the invention

Technical problem to be solved by this invention is to provide a kind of microwave to import evenly the micro-wave oven that the thermal efficiency is high at the above-mentioned state of the art.

The present invention solves the problems of the technologies described above the technical scheme that is adopted: a kind of micro-wave oven comprises

Body has furnace chamber, and the furnace chamber inwall has a microwave feed-in mouth;

Microwave generator is located in the aforesaid body and is communicated with aforesaid microwave feed-in mouth; And

Microwave stirrer is located at aforesaid microwave feedback porch, and be used to stir microwave and be beneficial to even microwave distribution,

It is characterized in that described microwave stirrer comprises

Motor has output shaft; And

Stir wave plate, the middle part has the holding parts that is connected with aforementioned output shaft, and extending radially outwardly is provided with fin.

For the mixing effect of wave plate to microwave stirred in raising, described fin has first surface and reaches and the opposing second surface of first surface, accordingly, described stir wave plate have first surface and with the opposing second surface of first surface, the second surface of described fin to small part with stir the wave plate second surface and be formed with an angle.

Further, described fin comprises that second surface first tab portion parallel substantially with stirring the wave plate end face reaches and stir second tab portion that the wave plate second surface is formed with an angle.

The angle of angle is 20 °.

As improvement, the described second surface that stirs wave plate convexes with back-up block, and this back-up block is terminal to offset with described furnace chamber inwall.

Originally stirring wave plate serves as preferred to be applied in the flat plate microwave oven, and described microwave feed-in mouth is located at the furnace chamber bottom, and the described wave plate top of stirring has a flat board that can supply microwave penetration that is arranged in the furnace chamber bottom groove.

Further, the described wave plate that stirs comprises the rotating disk portion at middle part and the annulus portion of periphery, and the frontal plane of projection of described microwave feed-in mouth is positioned at aforementioned rotating disk portion, and, be Openworks shape between aforesaid rotating disk portion and the annulus portion.

Compared with prior art, the invention has the advantages that: by increasing the fin that extends, improved the distribution of microwave, improved the uniformity of microwave significantly, thereby improved the cooking effect of food, and the thermal efficiency has improved greatly.

Description of drawings

Fig. 1 is embodiment 1 structural representation.

Fig. 2 is for stirring the side view of wave plate among the embodiment 1.

Fig. 3 is the plan structure schematic diagram of Fig. 2.

The perspective view of Fig. 4 for stirring wave plate among the embodiment 1.

Fig. 5 is for stirring the angle schematic diagram that the wave plate and second fin form among the embodiment 1.

Fig. 6 gets five points and tests inhomogeneity structure chart on flat board.

Fig. 7 stirs the wave plate structural representation among the embodiment 2.

The specific embodiment

Embodiment describes in further detail the present invention below in conjunction with accompanying drawing.

Embodiment 1: as shown in Figure 1, Figure 2, Figure 3 and Figure 4, micro-wave oven in the present embodiment comprises body 1, microwave generator 11, microwave stirrer and dull and stereotyped 2, body 1 has furnace chamber 12, furnace chamber 12 inwalls bottom has a microwave feed-in mouth, communicates in the body 1 that microwave generator is located at and with microwave feed-in mouth; Microwave stirrer is located at microwave feedback porch, be used to stir microwave and be beneficial to even microwave distribution, microwave stirrer comprises motor 4 and stirs wave plate 3 that motor 4 has output shaft, stir wave plate 3 middle parts and have the holding parts 7 that is connected with output shaft, extending radially outwardly is provided with fin 5.Dull and stereotyped position 2 is held in the furnace chamber bottom groove in stirring wave plate 3 tops, can the confession microwave penetration.

Fin 5 has first surface and reaches and the opposing second surface of first surface, second surface serves as reflecting surface and meets microwave, accordingly, stir wave plate 3 have first surface and with the opposing second surface of first surface, second surface serves as reflecting surface and meets microwave, fin 5 comprises that second surface first tab portion 52 parallel substantially with stirring wave plate 3 end faces reaches and stir second tab portion 51 that wave plate 3 second surfaces are formed with an angle α, the angle of angle α is 20 ° (seeing shown in Figure 5), stir wave plate 3 and comprise the rotating disk portion 32 at middle part and the annulus portion 31 of periphery, the frontal plane of projection of microwave feed-in mouth is positioned at rotating disk portion 32, so that the microwave energy that comes out fully reflects, and, be Openworks shape between rotating disk portion 32 and the annulus portion 31.The second surface that stirs wave plate 3 convexes with back-up block 6, and these back-up block 6 ends offset with furnace chamber 11 inwalls.

In the present embodiment stir wave plate 3 and but fin 5 all adopts the metal material of microwave reflection to make, the nonmetallic materials that back-up block 6 adopts low-friction coefficients and has a self-lubricating speciality are made.

Micro-wave oven in the present embodiment is at input power 800w, 50Hz, under the 220v situation, according to GB-T18800-2008/LEC 6075:2006, the method of cup test more than 10.2 in the practical micro-wave oven performance test method has been carried out uniformity test, sees shown in Figure 6, five points of making even on the plate are tested, and specifically see the following form:

" 1-5 reading " expression in the last table begins test earlier from first cup, and successively till the 5th cup, " 5-1 reading " then represented to test earlier since the 5th cup, arrives successively till first cup at last at last.

T=(Δ t1+ Δ t2)/2 in the last table,

η = 1 - [(T \max - T \min) / \overset{&OverBar;}{T}] .

Embodiment 2: as shown in Figure 7, the wave plate that stirs in the present embodiment micro-wave oven does not have fin and back-up block, other structures are identical with embodiment 1, present embodiment is also at input power 800w, 50Hz under the 220v situation, has carried out uniformity test, the same with embodiment 1, five points are done to test and are specifically seen the following form on the plate of making even:

From two forms, we can be clearly seen that by the fin that increase to extend, and the uniformity of embodiment 1 has improved nearly 20% than embodiment 2, obviously improved the distribution of microwave, increased substantially the heating uniformity of microwave, thereby the cooking effect of food is improved greatly.

Claims

1. a micro-wave oven comprises

It is characterized in that described microwave stirrer comprises

Motor has output shaft; And

Stir wave plate, the middle part has the holding parts that is connected with aforementioned output shaft, and extending radially outwardly is provided with fin;

Described fin has first surface and reaches and the opposing second surface of first surface, accordingly, described stir wave plate have first surface and with the opposing second surface of first surface, the second surface of described fin to small part with stir the wave plate second surface and be formed with an angle.

2. micro-wave oven according to claim 1 is characterized in that described fin comprises that second surface first tab portion parallel substantially with stirring the wave plate end face reaches and stir second tab portion that the wave plate second surface is formed with an angle.

3. micro-wave oven according to claim 2, the angle that it is characterized in that described angle is 20 °.

4. micro-wave oven according to claim 1 is characterized in that the described second surface that stirs wave plate convexes with back-up block, and this back-up block is terminal to offset with described furnace chamber inwall.

5. according to the described micro-wave oven of arbitrary claim in the claim 1～4, it is characterized in that described microwave feed-in mouth is located at the furnace chamber bottom, described stir the wave plate top have one be arranged in the furnace chamber bottom groove can the confession microwave penetration flat board.

6. according to the described micro-wave oven of arbitrary claim in the claim 1～4, it is characterized in that the described wave plate that stirs comprises the rotating disk portion at middle part and the annulus portion of periphery, the frontal plane of projection of described microwave feed-in mouth is positioned at aforementioned rotating disk portion, and, be Openworks shape between aforesaid rotating disk portion and the annulus portion.