KR19980060308U - Micro Switch for Microwave - Google Patents

Abstract

The present invention relates to a micro switch for a microwave oven, wherein in a microwave micro switch for interrupting a contact according to an operation of an actuator, a cylindrical actuator (10) having protrusions (1, 2) formed on both sides of an outer circumferential surface thereof, respectively. And, the upper portion is formed in contact with the protrusions (1, 2) of the actuator 10, the support portion 13 having a rectangular cut-out hole 11 to guide the appearance of the actuator 10, and to the lower and both sides The support plates 14 and 15 of the rectangular plate shape are formed so that the electrodes are placed therein, and the case 20 to which the cover 16 is attached to the front and the support plates 15 formed on both sides of the case 20 are formed. It is attached to the upper portion of the actuator 10 is in close contact with the lower portion of the curved portion 21 having an arc shape formed in the lower portion of the case 20 and the first electrode 25 to which the disk-shaped contact 23 is attached The first electrode 2 is attached to an upper portion of the support plate 14. 5) is made by simplifying the structure of the micro switch for detecting the opening and closing of the door consists of a second electrode 30 attached to the contact 27 on the upper portion in close contact with the contact 23 of the first electrode 25 when falling. It is possible to reduce the cost and to facilitate the assembly and to smoothly control the power according to the opening and closing of the door.

Description

Micro Switch for Microwave

The present invention relates to a micro-switch for a microwave, and guides the appearance of the actuator according to the close contact with the cutout formed inside the support part of the case on both sides of the actuator to control the opening and closing of the contact, and the appearance of the actuator Each of the protrusions are formed to regulate the pressure, and the first electrode and the second electrode having a curved portion are respectively coupled to the lower part of the actuator to simplify the structure of the micro switch that senses the opening and closing of the door, thereby reducing the manufacturing cost and facilitating assembly. In addition, the contact of the first electrode and the second electrode can be directly opened and closed according to the operation of the actuator without complicated conversion mechanism to simplify the structure of the micro switch, thereby reducing the manufacturing cost and facilitating assembly. Even when prolonged use, micro switch It is configured to increase the reliability of the position, and is particularly configured to be suitable for power interruption of the site where a strong pressure acts, such as door opening and closing detection of the microwave oven.

In general, microwaves that are cooked by dielectric heating using frictional heat caused by the translational movement of water molecules contained in the food by irradiating the microwaves with microwaves generated from the magnetron when the door is opened while in operation There is a part of microwaves harmful to the human body leaks to the outside, the front side of the microwave oven in which the door is in close contact with the micro switch to stop the operation of the microwave when the door is opened, the contact is connected in accordance with the door A micro switch for powering components is provided, as well as a plurality of micro switches for operating a flashing light and a moisture releasing fan installed in a ceiling.

In addition, such a micro switch for a microwave oven generally allows the lever supported by the leaf spring to move up and down as the actuator protrudes out of the case, and the first and second contacts are provided at both ends of the lever. In the state in which the door is opened, the actuator protrudes out of the case by the elasticity of the leaf spring while the front end of the lever connected to the first contact is kept spaced apart from the second contact. Each contact forms an open circuit. On the contrary, when the actuator is recessed into the case by closing the door, the lever descends to connect the first contact point and the second contact point.

However, in the conventional micro-switch as described above, since the contact between the first contact point and the second contact point and the lever is made by point contact, the contact part between the parts is worn out during long time use, so that the power can be smoothly opened and closed. In addition, when a strong impact is applied to the actuator from the outside, the actuator excessively sinks into the inside of the case and damages internal components such as a lever or a contact, and thus is composed of many parts. On the other hand, many problems have arisen, such as costly consumption and a lot of manpower consumption and work time for assembling each part.

The present invention has been made to solve the conventional problems as described above, the technical problem of the present invention, as described above in close contact with the incision hole formed inside the support portion of the case on both sides of the actuator to control the opening and closing of the contact point The micro switch for guiding the actuator's appearance and controlling the appearance of the actuators, respectively, and for coupling the first and second electrodes having a curved portion to the lower part of the actuator, respectively, to detect the opening and closing of the door. By simplifying the structure, manufacturing cost can be reduced and assembly can be simplified, and the contact point of the first electrode and the second electrode can be opened and closed directly according to the operation of the actuator without complicated converter, thereby simplifying the structure of the micro switch, thereby making the manufacturing cost Can be reduced, and easy to assemble, and also for long time repeated use Edo is to provide a means to increase the reliability of the micro switch by preventing the opening and closing of the contact.

The technical problem as described above is a micro switch for a microwave oven, in which a contact is interrupted according to an operation of an actuator, a cylindrical actuator having protrusions formed on both sides of an outer circumferential surface thereof, and an actuator in close contact with a protrusion of the actuator. To form the support portion having a rectangular incision hole to guide the appearance of the square plate-shaped support plate is formed so that the electrode is placed on the lower and both sides, and the case is attached to the front cover and formed on both sides of the case It is attached to the upper part of the support plate and is in close contact with the lower part of the actuator, and the lower part of the curved part having an arc shape is attached to the first electrode attached to the disc-shaped contact point and the upper part of the support plate formed at the lower part of the case, and when the first electrode is lowered. As the second electrode attached to the upper contact to contact with the contact of the first electrode By providing a microswitch for microwave oven, it characterized in that binary luer is achieved.

1 is an exploded perspective view of the present invention,

2 is a front view showing a coupled state of the present invention,

3a and 3b is a front view showing an operating state of the present invention.

Explanation of symbols on the main parts of the drawings

1,2: protrusion 10: actuator

11: incision 13: support

14,15: base plate 16: cover

20 case 21: curved portion

23,27: contact 25: first electrode

30: second electrode 100: door

It will be described below in detail by the accompanying drawings, a micro switch for a microwave oven according to the present invention.

1 is an exploded perspective view of the present invention, Figure 2 is a front view showing a coupling state of the present invention, the microwave micro switch 50 according to the present invention is the first electrode 25 and the first according to the opening of the door The contacts 23 and 27 of the two electrodes 30 are spaced apart to cut off the supply of power to stop the operation of the microwave oven, and the first electrode by the operation of the actuator 10 according to the contact with the door. (25) is lowered to contact the contacts 23 and 27 of the first electrode 25 and the second electrode 30 so as to supply power. The present invention is designed in front of the microwave oven. On both sides of the outer circumferential surface of the circumferential actuator 10 which emerges from the case 20 according to the contact with the attached door, it is inserted into the cut-out hole 11 of the support part 13 formed in the case 20 and cut out ( 11) the protrusions 1 and 2 are formed to be in close contact with the inner wall of In the upper part of the case 20, the supporting parts 13 are formed in close contact with the protrusions 1 and 2 of the actuator 10 to guide the appearance of the actuator 10.

The supporting portion 13 is the inner wall of both sides of the cutting hole 11 is in close contact with the protrusions 1, 2 of the actuator 10 to guide the appearance of the actuator 10, and also according to the contact with the door During depression, the bottom of the cutout 11 is brought into close contact with the lower ends of the projections 1 and 2 to limit excessive depression of the actuator 10, while the projections 1 and 3 are protruded to the outside. 2) is in close contact with the upper part of the cutting hole 11 of the support portion 13 to prevent excessive protrusion of the actuator 10 or departure to the outside, the center of the support portion 13 the actuator 10 Through holes 13A are formed so that the upper and lower portions of the upper and lower portions thereof are respectively inserted.

In addition, the base plates 14 and 15 of the rectangular plate shape are respectively formed on the lower side and both sides of the case 20 in which the base portions 13 are formed, and the first electrode on the base plates 14 and 15, respectively. 25 and the second electrode 30 are respectively coupled, and the cover 16 is coupled to the front to protect the internal components.

In addition, the first electrode 25 supported by the support plates 15 formed on both sides is brought into close contact with the lower end of the actuator 10 and lowered in accordance with the operation of the actuator 10, while the actuator 10 is elastic. ) Is pressed to the upper side, the arc-shaped curved portion 21 is formed on one side in order to increase the elasticity, the disk-shaped contact 23 is attached to the lower portion, the support plate 14 formed in the lower portion of the case 20 ) The second electrode 30 having a contact 27 having the same shape as that of the contact 23 of the first electrode 25 attached to the upper portion of the second electrode 30 to form a closed circuit by contact with the first electrode 25. Is fixed.

Referring to the operation of the present invention made of a structure as described above, the microwave micro switch 50 according to the present invention is attached to the front of the microwave oven by interrupting the contacts (23, 27) in accordance with the opening and closing of the door If the door is opened while the microwave oven is in operation, the microwave oven is stopped to prevent leakage of microwaves harmful to human body.

In the present invention, as shown in FIG. 3A, when the door is closed, the actuator 10 is recessed into the case 20 by contact with the door, thereby causing the actuator 10 to have a first electrode 25. On the other hand, the contact 23 of the first electrode 25 is in close contact with the contact 27 of the second electrode 30 to form a closed circuit to enable normal operation of the microwave oven. On the contrary, in the state where the external force acting on the actuator 10 is removed as in the opening of the door, as shown in FIG. 3B, the first electrode 25 is moved upward by elasticity, and thus the first electrode 25 and the first electrode 25 are moved. When the contacts 23 and 27 of the two electrodes 30 are separated, the supply of power is cut off to prevent the operation of the microwave oven while the door is open, while the door is opened while the microwave oven is in operation. To stop the operation of the microwave oven It is done in order to prevent external leakage of the year microwave.

As described above, the micro switch 50 for a microwave oven according to the present invention is formed inside the support part 13 of the case 20 on both side surfaces of the actuator 10 to control the opening and closing of the contacts 23 and 27. In accordance with the close contact with the incision hole (11) to guide the appearance of the actuator 10, while forming the projections (1, 2) respectively to regulate the degree of appearance of the actuator 10, the actuator 10 By combining the first electrode 25 and the second electrode 30 having the curved portion 21 to the lower portion, respectively, the structure of the micro switch for detecting the opening and closing of the door can be simplified to reduce manufacturing cost and facilitate assembly. In addition, the contacts 23 and 27 of the first electrode 25 and the second electrode 30 are directly opened and closed in accordance with the operation of the actuator 10 without a complicated transducer mechanism, so that the contacts 23 and 27 may be used even when repeated use for a long time. ) Can increase the reliability of the micro switch In addition, even when a strong impact is applied to the tip of the actuator 10, the protrusions 1 and 2 formed on the side and the support 13 prevent the excessive depression of the actuator 10 by the action of the internal components. It prevents damage and increases durability.

Claims (1)

In a microwave micro switch for interrupting a contact according to an operation of an actuator, a cylindrical actuator 10 having projections 1 and 2 formed on both sides of an outer circumferential surface thereof, and the projections of the actuator 10 described above. A support plate 13 having a rectangular plate-shaped support plate 14 is formed so as to be in close contact with (1, 2) to form a support portion 13 having a rectangular cut-out hole 11 to guide the appearance of the actuator 10, and the electrodes are placed on the lower and both sides thereof. And 15, respectively, and are attached to the upper part of the case 20 to which the cover 16 is attached, and to the upper part of the support plate 15 formed on both sides of the case 20, and the lower part of the actuator 10, respectively. The first electrode 25 attached to the disk-shaped contact 23 is attached to the lower portion of the curved portion 21 that is in close contact and has an arc shape, and is attached to the upper portion of the support plate 14 formed on the lower portion of the case 20. When the electrode 25 descends, the upper portion of the electrode 25 is in close contact with the contact point 23 of the first electrode 25. Micro switch for a microwave, characterized in that consisting of a second electrode 30 attached to the contact (27).