CN100471349C

CN100471349C - Microwave absorption chamber for preventing microwave oven microwave leakage

Info

Publication number: CN100471349C
Application number: CNB2007100700210A
Authority: CN
Inventors: 王宝根
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-07-17
Filing date: 2007-07-17
Publication date: 2009-03-18
Anticipated expiration: 2027-07-17
Also published as: CN101105295A

Abstract

A microwave leakage preventing device, in particular for microwave oven, is a microwave absorption chamber equipped between oven port and oven chamber and used for absorbing leaked microwave. The invention improves the safety of microwave oven service. The microwave absorption chamber is a quadrangular chamber, a long opening is disposed at the side face close to the aperture between an oven chamber and an oven door, when the oven door is closed, and the leaked microwave passes through the aperture between the oven chamber and oven door and directly enters the microwave absorption chamber from the long opening to be absorbed. The long opening makes the absorption effect to leaked microwave not to be affected by the enlargement of the aperture between the oven chamber and oven door due to abrasion, so as to assure the safety of user for long time. The cross section of each edge of the microwave absorption chamber includes an inner layer and an outer layer, the outer layer is a metal layer, the inner layer is an absorption and transmission layer with meshes that are opened on each side faces and used for transmitting microwave, and microwave absorption absorbing material is coated on both the inner wall of the metal layer, the inner wall and outer wall of the absorption and transmission layer to form three microwave absorption layers, so as to reduce reflectivity of microwave, increase absorptivity to the leaked microwave, and more effectively achieve microwave leakage prevention purpose.

Description

The microwave absorbing chamber of anti-microwave oven microwave leakage

One, technical field

The present invention relates to a kind of anti-microwave leakage device,, microwave absorbing chamber is arranged on absorption leakage microwave between fire door and furnace chamber, thereby improve the fail safe of its use in particular for microwave oven.

Two, background technology

Because microwave heating has characteristics fast, easily, microwave oven becomes the electrical equipment that generally uses in the Modern Family kitchen, and microwave has very big harm to health, thereby as the microwave oven of household electrical appliance, the anti-leak problem is particularly important.Microwave leakage is meant that microwave leaks into the stove external space from source or heater (furnace chamber), and fire door is placed food and observed furnace chamber and use, and also is an antetheca that constitutes furnace chamber, and leakage problem is the most outstanding.

The method that adopts is except interlocking on the electrical equipment now, mechanically be at place, slit dress gasket, tightly be attached between fire door and the furnace chamber and absorb microwave, and fire door is after multiple switching wearing and tearing, and the slit will be strengthened, and cause blow-by between fire door and furnace chamber, the effect of gasket just reduces, the microwave leakage amount increases, and is above standard, and the user is damaged.Even new microwave oven, because also can there be certain slit in the individual difference of processing between fire door and the furnace chamber, the generation of microwave leakage phenomenon when causing work, and the user can not in time find, the harmfulness of going down for a long time is very big.Because people recognize the harm of microwave radiation gradually, the existence of this phenomenon can reduce the enthusiasm of people to the use microwave oven simultaneously, the therefore fail safe that improves microwave oven, and it is crucial reducing microwave leakage.

Three, summary of the invention

The objective of the invention is to solve the problems of the prior art, provide a kind of be arranged between fire door and furnace chamber to absorb microwave and prevent the microwave absorbing chamber of microwave, and make it have good absorbing effect, guarantee characteristics safe in utilization for a long time to external leakage.

Concrete scheme of the present invention is: outside the slit between fire door and furnace chamber microwave absorbing chamber is set, this microwave absorbing chamber is a quadrangle cavity, it has a rectangular opening on the side in slit between close furnace chamber and fire door, leak microwave and will enter microwave absorbing chamber by rectangular opening after by the slit between fire door and furnace chamber and be absorbed, and can not leak into outside the stove.Microwave absorbing chamber comprises inside and outside two-layer on the cross section on each limit, its ectomesoderm is a metal level, internal layer is for absorbing transmission layer, absorbing the mesh of opening the transmissive microwave on each side of transmission layer, at the inwall of metal level, absorb on the inner and outer wall of transmission layer and all be coated with microwave absorbing material to form three road microwave absorbing layers, the transmission layer inwall that is absorbed that energy is little in the leakage microwave that enters is absorbed, seeing through that energy is big absorbs transmission layer by the absorption of the microwave absorbing material of metal level inwall, and the microwave absorbing material that is absorbed the transmission layer outer wall once more after the reflection absorbs.Multiple tracks absorbs and prevents that microwave energy from leaking, thereby guarantees user's safety.

Do a quadrangle boss at above-mentioned furnace chamber leading flank and embed in the microwave absorbing chamber, the lateral surface of this quadrangle boss is concordant with the inner edge of rectangular opening, makes microwave absorbing chamber form a groove outside furnace chamber; Do a square boss that has a due proportion of with this groove at the fire door medial surface, its height is consistent with the degree of depth of groove, like this, after fire door closes, the square boss of fire door just is absorbed in the groove of microwave absorbing chamber composition, and tightly fit with the quadrangle boss of furnace chamber, make and leak microwave because direct projection enters microwave absorbing chamber from rectangular opening better.

The invention has the beneficial effects as follows: make microwave oven on the basis of existing anti-microwave leakage method, add barrier again one, the setting of slit foreign minister bar opening between fire door and furnace chamber, make the influence that not strengthened by fire door wearing and tearing slit to the assimilation effect that leaks microwave, the long-term safety that guarantees the user needn't worry to be subjected to the harm of microwave irradiation; The setting of three layers of microwave absorbing material and beam orifice in the microwave absorbing chamber has reduced the reflectivity of microwave, has increased the absorptivity of leaking microwave, more effectively realizes absorbing the purpose of microwave anti-microwave leakage, improves the fail safe that microwave oven uses.

Four, description of drawings

Fig. 1 is the schematic perspective view that the present invention is installed in back oven door opening state on the microwave oven;

Fig. 2 is the schematic perspective view of microwave absorbing chamber of the present invention;

Fig. 3 is that microwave absorbing chamber of the present invention is installed back absorption microwave process schematic diagram, and arrow is represented the microwave leakage direction among the figure.

As follows to the label declaration in each width of cloth accompanying drawing: 1-furnace chamber; 1a-quadrangle boss; 2-microwave absorbing chamber; 2a-rectangular opening; 2b-metal level; 2c-absorption transmission layer; 2d-wedge angle; 2e-mesh; 3-fire door; 3a-square boss; 4-door-hinge.

Five, embodiment

Describe concrete structure of the present invention and anti-microwave leakage process in detail below in conjunction with accompanying drawing.

As shown in Figure 1, the microwave oven of having adorned microwave absorbing chamber of the present invention is similar to existing microwave oven, and different is: it is provided with a microwave absorbing chamber 2 outside the slit of 1 of fire door 3 and furnace chamber.Fire door 3 with can adopt existing hinge type mode being connected of furnace chamber 1 or at fire door 3 fixation side dresses door-hinge 4.

As shown in Figure 2, microwave absorbing chamber 2 is quadrangle cavitys, and it is promptly having a rectangular opening 2a to become the inlet that the leakage microwave enters microwave absorbing chamber 2 on the side near furnace chamber 1 and 3 slits of fire door on four medial surfaces.

As shown in Fig. 2 and Fig. 3, microwave absorbing chamber 2 has inside and outside two-layer on the cross section on each limit, and its ectomesoderm is metal level 2b, and its cross section is the few middle horizontal stroke of " recessed " font, to form rectangular opening 2a in the side near fire door 3 and 1 slit of furnace chamber; Internal layer is for absorbing transmission layer 2c, its material is plastics, its each side and metal level 2b are at regular intervals, and on the side relative, a wedge angle 2d is set microwave absorbing chamber 2 is divided into former and later two cavitys with rectangular opening 2a, two sides of wedge angle 2d all are reflected in the cavity of wedge angle 2d both sides after with a microwave absorbing part that enters, and can not reflect microwave absorbing chamber 2 outsides again, open the mesh 2e of transmissive microwave on each side that absorbs transmission layer 2c break corner, the diameter of mesh 2e is generally got greater than 1.2mm; At the inwall of metal level 2b, absorb to penetrate on the inner and outer wall that layer 2c comprise wedge angle 2d and all be coated with microwave absorbing material to form three road microwave absorbing layers.

As shown in Fig. 1 and Fig. 3, for fixing microwave absorbing chamber 2 is realized leaking in the microwave introducing microwave absorbing chamber 2, being a quadrangle boss 1a at furnace chamber 1 leading flank embeds in the microwave absorbing chamber 2, the lateral surface of this quadrangle boss 1a is concordant with the inner edge of rectangular opening 2a, makes microwave absorbing chamber 2 form a groove outside furnace chamber 1; Be a square boss 3a who has a due proportion of with this groove at fire door 3 medial surfaces, its height is consistent with the degree of depth of groove.

Microwave absorbing chamber 2 can weld or make four sides that section bar is fixed on quadrangle boss 1a on the furnace chamber 1.

In the operating process, open or closed fire door 3 with hinge or door-hinge 4.After fire door 3 closures, the square boss 3a of fire door 3 just is absorbed in the groove of microwave absorbing chamber 2 fixing back formation before furnace chamber 1, and tightly fit with the quadrangle boss 1a of furnace chamber 1, shown in arrow among Fig. 2 and Fig. 2, leak microwave by the slit of 1 of fire door 3 and furnace chamber after owing to its direct projection, will enter microwave absorbing chamber 2 by the rectangular opening 2a of microwave absorbing chamber 2 medial surfaces and be absorbed, and can not leak into outside the stove.Rectangular opening 2a has certain width, and this width is greater than the slit of 1 of fire door 3 and furnace chamber, realize long-term the use after, even the slit of 1 of fire door 3 and furnace chamber is strengthened, the leakage microwave also can enter in the microwave absorbing chamber 2 smoothly, guarantees new, old use of microwave ovens safety.

After the leakage microwave enters microwave absorbing chamber 2, two sides of meeting wedge angle 2d earlier are absorbed or are reflected in former and later two cavitys of microwave absorbing chamber 2, leaking the microwave absorbing material that is absorbed transmission layer 2c inwall earlier that energy is little in the microwave this moment absorbs, energy is big can not reflect but see through mesh 2e passes absorption transmission layer 2c, absorbed by the microwave absorbing material of metal level 2b inwall, do not absorb if also absorbed the microwave absorbing material that will be absorbed transmission layer 2c outer wall after the metal level 2b reflection.Form three road microwave absorbing layers like this and effectively absorb microwave, prevent that microwave energy from leaking, thereby guarantee user's safety.

Claims

1, a kind of microwave absorbing chamber of anti-microwave oven microwave leakage, outside its slit between fire door (3) and furnace chamber (1) microwave absorbing chamber (2) is set, this microwave absorbing chamber (2) is a quadrangle cavity, it is having a rectangular opening (2a) on the side in slit between promptly close fire door (3) and furnace chamber (1) on four medial surfaces, leaking microwave enters microwave absorbing chamber (2) by rectangular opening (2a) after by the slit between fire door (3) and furnace chamber (1) and is absorbed, it is characterized in that: described microwave absorbing chamber (2) has inside and outside two-layer on the cross section on each limit, its ectomesoderm is metal level (2b), its cross section is the horizontal stroke of " recessed " font in the middle of few, forms rectangular opening (2a) with the side in slit between near fire door (3) and furnace chamber (1); Internal layer is that material is the absorption transmission layer (2c) of plastics, its each side and metal level (2b) are at regular intervals, and on the side relative with rectangular opening (2a), a wedge angle (2d) is set microwave absorbing chamber (2) is divided into former and later two cavitys, on each side that absorbs transmission layer (2c) break corner (2d), open the mesh (2e) of diameter greater than the transmissive microwave of 1.2mm; At the inwall of metal level (2b), absorb to penetrate on the inner and outer wall that layer (2c) comprises wedge angle (2d) and all be coated with microwave absorbing material to form three road microwave absorbing layers.

2, the microwave absorbing chamber of anti-microwave oven microwave leakage according to claim 1, it is characterized in that: do a quadrangle boss (1a) at described furnace chamber (1) leading flank and embed in the microwave absorbing chamber (2), the lateral surface of this quadrangle boss (1a) is concordant with the inner edge of rectangular opening (2a), makes microwave absorbing chamber (2) form a groove outside furnace chamber (1); Do a square boss that has a due proportion of with this groove (3a) at fire door (3) medial surface, its height is consistent with the degree of depth of groove; After fire door (3) closed, the square boss (3a) of fire door (3) just was absorbed in the groove of microwave absorbing chamber (2) composition, and tightly fitted with the quadrangle boss (1a) of furnace chamber (1).

3, the microwave absorbing chamber of anti-microwave oven microwave leakage according to claim 2 is characterized in that: described microwave absorbing chamber (2) is weldingly fixed on four sides that furnace chamber (1) is gone up quadrangle boss (1a).

4, the microwave absorbing chamber of anti-microwave oven microwave leakage according to claim 2 is characterized in that: described microwave absorbing chamber (2) is fixed on four sides that furnace chamber (1) is gone up quadrangle boss (1a) after making section bar.