CN2358364Y

CN2358364Y - Microwave oven

Info

Publication number: CN2358364Y
Application number: CN 98247680
Authority: CN
Inventors: 梁月初
Original assignee: Individual
Current assignee: Individual
Priority date: 1998-12-03
Filing date: 1998-12-03
Publication date: 2000-01-12
Anticipated expiration: 2008-12-03

Abstract

The utility model relates to a microwave oven with a door body closed by magnetic suction. A frame point at the entrance of an oven body is fixed with a permanent magnet; an oven door is at least provided with a ferromagnetic material at the position corresponding to the permanent magnet, or the permanent magnet is fixed in the oven door at a position corresponding to the frame at the entrance of the oven body; the frame at the entrance of the oven body is at least provided with a ferromagnetic material at the position corresponding to the permanent magnet; the oven door is also provided with a push rod which can touch a touching pressure switch. The microwave oven has the advantages that the locking structure of the oven body is simple and reliable, the requirement to installation accuracy is low, microwave leakage can be reduced, and cost is lower.

Description

Micro-wave oven

The utility model relates to the fire door locking mechanism of a kind of micro-wave oven, particularly micro-wave oven.

Lock by mechanical latch and lockset lyatem between the fire door of existing micro-wave oven and the body of heater.When closing upper furnace door, the lock hook on the interlocking in the gate stop of fire door and the body of heater supports fastens, the gate stop by fire door touches the bruising switch that interlocking supports simultaneously, and electric loop is connected.The shortcoming of this mechanical lock mechanism is: complex structure, the quality of fit between fire door gate stop and the body of heater lock hook requires high.If after the position of lock hook is inclined to one side, then can not interlock with gate stop; If partially, the gate stop that can not link closely again causes the fire door front and back loosening, and the danger of leaking microwave is arranged.After micro-wave oven uses a period of time, also can cause the appearance of leaky wave phenomenon owing to the wearing and tearing of striker mechanism and firedoor hinge.

The purpose of this utility model provides simple, the reliable micro-wave oven of a kind of fire door locking mechanism.

The utility model is achieved in that this micro-wave oven comprises body of heater and hinged with it fire door.On body of heater inlet frame, have through hole, be fixed with the bruising switch that is used to control electric loop break-make in the body of heater behind through hole.The place is fixed with permanent magnet at body of heater inlet frame, is ferrimagnet at the position corresponding with permanent magnet at least on the fire door.Perhaps opposite, permanent magnet is fixed in the fire door and body of heater inlet frame corresponding section, and is ferrimagnet at the position corresponding at least on the body of heater inlet frame with permanent magnet.On fire door, also be provided with the push rod that can touch the bruising switch.After closing upper furnace door, fire door is close on the body of heater under the suction of permanent magnet, and the through hole that the push rod of while fire door passes on the body of heater inlet frame is pressed on the bruising switch, connects electric loop.If draw back fire door, push rod is loose immediately from the bruising switch, and electric loop is cut off.Because this micro-wave oven is pull-in on fire door on the body of heater with permanent magnet, has therefore saved the complicated mechanical locking mechanism, and reduced requirement installation accuracy.The leaky wave phenomenon that also can avoid the wearing and tearing owing to mechanical striker mechanism and hinge to cause simultaneously.

The utility model has the advantages that: simple in structure, required precision is low, thereby simple installation, and cost is lower.Simultaneously because the applying of fire door of this micro-wave oven and body of heater inlet surface is more tight, thereby can reduce the leakage of microwave.

Fig. 1 is a structural representation of the present utility model;

Fig. 2 is the fire door of the utility model embodiment and the structural representation of body of heater hinged place.

The utility model is described in further detail below in conjunction with drawings and Examples.

Referring to Fig. 1, this micro-wave oven comprises body of heater 1 and hinged with it fire door 2, has through hole 5 on body of heater inlet frame 3, is fixed with bruising switch (not shown) in the body of heater behind through hole 5.Back at body of heater inlet frame 3 is fixed with permanent magnet 4.Permanent magnet 4 can adopt permanent-magnet materials commonly used such as magnet.Body of heater inlet frame 3 is preferably stainless steel material.Fire door 2 can whole be made with iron sheet, also can be only one side corresponding with permanent magnet 4 make with iron sheet, ferrimagnet perhaps is set in addition, as iron block etc. in fire door.If permanent magnet 4 is fixed in the fire door, as arrow A, B indication position among the figure, the most handy stainless steel of fire door is made.Correspondingly, body of heater inlet frame 3 can all or part ofly be made with iron sheet, or in addition ferrimagnet is set.The quantity of permanent magnet 4 and concrete installation site can be provided with flexibly according to actual conditions, as long as can be with fire door adhesive securely.Position corresponding with through hole 5 on fire door 2 is provided with push rod 6.After closing upper furnace door, fire door 2 is pull-in on the body of heater securely by permanent magnet 4, and push rod 6 passes the magnetic pressure switch that through hole 5 touches in the body of heater 1 simultaneously, thereby connects electric loop.If open fire door, then push rod 6 breaks away from the bruising switch, and electric loop is cut off.For being easy to open fire door, can on fire door, set up handle.Referring to Fig. 2,, can do further to improve to the utility model for further reducing the installation accuracy requirement of fire door.The axis hole 8 of firedoor hinge seat 7 is changed system into the strip hole by common circular hole, and the length in hole makes fire door 2 and body of heater 1 hinged place that loosening leeway, front and back be arranged along the fore-and-aft direction setting of body of heater.State when dotted line is represented oven door opening among the figure, imaginary line are represented the state after fire door is closed.The position of door-hinge when label 10 illustrates oven door opening; The position of door-hinge when label 10 ' fire door is shown is shut.Some is fixed on (as the permanent magnet among Fig. 2 4) near the articulated position permanent magnet, and that another part is fixed on is far away from articulated position, the long position (as the permanent magnet among Fig. 1 4) of the arm of force between permanent magnet suction and rotating shaft.The advantage of this structure is, even the installation site of hinge seat, can guarantee also that fire door can fit tightly on body of heater in some deviation of fore-and-aft direction after shutting, thereby has reduced the requirement to the fire door installation accuracy.

Claims

1, a kind of micro-wave oven, comprise body of heater and hinged with it fire door, on body of heater inlet frame, have through hole, be fixed with the bruising switch that is used to control electric loop break-make in the body of heater behind through hole, it is characterized in that: a. is fixed with permanent magnet at body of heater inlet frame place, at least be ferrimagnet at the position corresponding on the fire door with permanent magnet, perhaps permanent magnet is fixed in the fire door and body of heater inlet frame corresponding section, and is ferrimagnet at the position corresponding at least on the body of heater inlet frame with permanent magnet; B also is provided with the push rod that can touch the bruising switch on fire door.

2, micro-wave oven according to claim 1, the axis hole that it is characterized in that the firedoor hinge seat is the strip hole, the length in hole is along the fore-and-aft direction setting of body of heater, and described permanent magnet partial fixing is near articulated position, and another part is fixed on position far away from articulated position, that the arm of force is long.