KR950004638Y1 - Weight measuring apparatus for microwave oven - Google Patents

Abstract

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Description

Weight Sensor Mounting Structure of Microwave Oven

1 is a cross-sectional view showing a mounting structure of a conventional microwave weight sensor.

2 is a cross-sectional view showing the mounting structure of the present invention.

3 is an exploded perspective view showing the mounting structure of the present invention.

4 is a cross-sectional view showing a rotor of the present invention.

Figure 5 is a cross-sectional view showing the operating state of the projection and the inclination groove of the stator rotor of the subject innovation.

6 is a perspective view showing another embodiment of the sensor stator of the present invention.

* Explanation of symbols for main parts of the drawings

10: cavity bottom plate 20: sensor bracket

30: rotor 40: sensor stator

53: sensor plate 60: pressure louver

The present invention is connected to the sensor device is formed on the bottom of the rotor is formed in the projection is formed in the bottom of the weight sensor of the microwave oven to move up and down by rotating the rotor, eliminating the gap of the sensor It is about.

As shown in FIG. 1, the weight sensor mounting structure of the conventional microwave oven rotates the rollers 3 on the rotary ring 2 of the upper groove of the cavity bottom plate 1 in which grooves are formed at a predetermined width along the circumference. It is possibly supported, and the turntable 4 is mounted on the rollers 3, and the weight sensor 6 is installed by the sensor bracket 5 at the bottom of the recess of the bottom plate 1.

Here, the bottom plate 1 is formed with a hole on one side of the groove and a label (7) is attached to the top of the hole, the sensor bracket (5) the outer lower end is screwed to the sensor stator (8), the inside is predetermined It forms a space and extends upwardly, and a hole is formed in the upper center portion and communicates with the hole of the bottom plate 1. In addition, the weight sensor (6) is mounted in the inner space of the sensor bracket (5), and a protrusion is formed on the weight sensor (6) protrudes through the hole of the sensor bracket (5) to be in close contact with the bottom surface of the label (7) have.

In addition, the label 7 is made of an absorbent material to absorb moisture when the turntable 4 overflows to the bottom of the cavity, thereby preventing moisture from penetrating into the weight sensor 6.

The weight sensor mounting structure of the conventional microwave oven configured as described above, when the turntable 4 rotates, the rollers 3 rotate together to press the projections of the weight sensor 6 protruding below the label 7, whereby the weight The sensor 6 detects the weight of the food placed on the turntable 4.

The weight sensor mounting structure of the conventional microwave oven, first, the label 7 attached to the cavity bottom plate (1) in order to prevent moisture penetrates the defect that is removed over time, the second material, the sensor bracket (5 Since the height of the side part is nonuniform, a sensor is provided with a gap, and the performance of the weight sensor 6 has become unstable.

The object of the present invention is connected to the sensor device is formed on the bottom of the rotor is formed in the projection is formed in the lower, so as to move up and down by rotating the rotor, so as to correct the defect of the label and eliminate the gap of the sensor It is to provide a weight sensor mounting structure of a microwave oven that improves performance.

Hereinafter, the technical configuration of the present invention according to the accompanying drawings in detail.

According to the present invention, as shown in FIGS. 2 to 5, a cavity bottom plate 10 having a hole is formed in the recess, and an upper part of the cavity bottom plate 10 is fixed to the bottom and bent downward to fit the bottom. A hole 21 is formed and the sensor bracket 20 having one side opening, and the knob 31 protrudes outward through the fitting hole 21 from the inside of the sensor bracket 20 and rotates with the rotation guide 32 at the top. The rotor 30 in which the electron protrusions 33 are formed, and the locking jaw 41 is formed at both ends thereof so as to be supported by one opening of the sensor bracket 20 at the upper portion of the rotor 30, and have a circular hole 42 at the center thereof. Sensor stator 40 formed with bosses 43 and inclined grooves 44 on the bottom surface concentrically with circular hole 42, and an outer circumferential surface portion of the sensor stator 40 above the sensor by screws. Sensor members 50 fastened to the boss 43 of the stator 40, and the inner peripheral surface of the lower end is inserted into the outer periphery of the sensor member 50 It consists of a pressure louver 60 which is in close contact with the roller 13 of the rotary ring 12 which is formed with a louver projection 61 at the center thereof and protrudes through the hole of the cavity bottom plate 10 to support the turntable 11. The basic features of the technical configuration.

The present invention constituted as described above, since the rotor protrusions 33 of the rotor 30 move along the inclined grooves 44 of the sensor stator 40 as the rotor 30 rotates, the sensor stator 40. Is moved up and down. In addition, the pressure louver 60 and the sensor member 50 installed above the sensor stator 40 are moved up and down, and the louver protrusion 61 is moved to the hole of the cavity bottom plate 10 so that the roller 13 without gaps. Make sure you are in close contact with

Here, the sensor member 50 includes a substrate 51 having through holes formed at the same position as the bosses 43 on the sensor stator 40, a spacer 52 inserted into the substrate 51, and The outer circumferential surface is fastened to the boss 43 of the sensor stator 40 by screws, and consists of a sensor plate 53 in which grooves are formed.

The sensor bracket 20 is formed with cutout grooves 21a into which the rotor protrusion 33 of the rotor 30 can be inserted into the inner circumferential surface of the bottom plate where the fitting holes 21 are formed, and the bottom outer portion upward. It is bent and attached to the cavity bottom plate 10, and one side is opened. In addition, the fitting portion 22 of the "c" shaped groove is formed at one side edge opening.

The sensor bracket 20 is supported by a locking jaw 41 formed at one side of the sensor stator 40 to one side fitting portion 22. In addition, the rotor protrusions 33 are inserted into the incision grooves 21a through the fitting holes 21 formed in the bottom plate of the sensor bracket 20 so that the rotor 30 is inserted, and the knob 31 is Exposed to the outside and the bottom surface is supported on the bottom surface of the sensor bracket 20, the upper rotation guide 32 is supported by being fitted in the circular hole 42 of the sensor stator (40).

Rotor 30 has a knob 31 is formed so that the handle protrudes in the center of the outer surface, the rotation guide 32 is formed in a cylindrical shape so as to be inserted into the cylindrical hole 42 of the sensor stator 40 to the top Protruding from the outer periphery of the insertion hole 21 to be inserted into the insertion hole 21 of the sensor bracket 20, the shape of the cutting groove 21a of the insertion hole 21 is formed to extend to the outside, the rotor projection 33 on the upper end of the extension portion ) Is formed.

The rotor 30 is the rotor protrusions 33 formed on the upper portion is in close contact with the inclined groove 44 of the sensor stator 40, respectively, it is possible to rotate a certain angle. Therefore, as the rotor 30 is rotated, the sensor members 50 and the pressure louver 60 fixed and supported by the sensor stator 40 are vertically moved up and down.

Both ends of the sensor stator 40 are formed with a predetermined width extending outwardly to one side, and thus, a locking jaw 41 is formed, and bosses 43 are formed between the inclined grooves 44 on the concentric circles of the circular holes 42, and circular holes. Inclined grooves 44 are formed to be inclined concentrically on 42.

Here, the inclined groove 44 is formed concentrically around the circular hole 42, the inner line and the outer line of the groove is formed parallel to the concentric circles.

On the other hand, the inclined groove 44, as shown in Figure 6, the inner line and the outer line of the groove is expanded on one side and the other side is reduced, the groove deep in the expanded portion and the reduced portion of the sensor stator 40 Note that it can be formed to match the bottom surface.

The sensor stator 40 is supported by the engaging jaw 41 of the both sides extending to the outside is inserted into the fitting portion 22 of the "c" shaped groove of the sensor bracket 20, the inclined surface of the inclined groove 44 Accordingly, the rotor protrusion 33 of the rotor 30 is moved in the concentric circle of the circular hole 42, and is moved up and down in accordance with the bending of the groove. In addition, the boss 43 restricts the movement of the rotor protrusion 33 which is moved along the inclined groove 44 to intervene the rotation of the rotor 30.

The pressure louver 60 has a louver protrusion 61 formed at the upper center portion thereof, and a waterproof border 62 having grooves is formed in the concentric circle of the louver protrusion 61, and the outer periphery of the end portion and the center portion thereof extend a predetermined length downward. .

The pressure louver 60 has an outer circumference of the sensor plate 53 inserted into the inner circumference of the lower end, and the protruding center portion contacts the center of the sensor plate 53. In addition, the waterproof edge 62 formed at the periphery of the upper louver protrusion 61 is in close contact with the bottom surface of the cavity bottom plate 10 so that the excess water during cooking penetrates into the hole through which the louver protrusion 61 protrudes. When it does, it prevents any further inflow.

Since the present design prevents the pressure louver 60 from penetrating the water, the label is not attached to the hole of the cavity bottom plate 10 so that the inside is clean, thereby preventing the performance degradation of the sensor. In addition, even if the dimensions of the sensor bracket 20 is not constant, since the pressure louver 60 can be adjusted to be in close contact with the roller 13 by the operation of the rotor 30, the performance of the sensor can be kept constant. .

As described above, the present invention is connected to the sensor device is formed on the bottom of the rotor is formed in the projection is formed in the bottom, by rotating the rotor to move up and down, to correct the defect of the label of the sensor It eliminates the gap, which is very useful for improving performance.

Claims (1)

The load received from the rotating ring pivoting the upper surface of the cavity bottom plate while supporting the turntable is transmitted to the sensor member through a weight sensor arranged through the cavity bottom plate to detect the voltage generated in the sensor member. In the microwave weight detection device for detecting the weight of the workpiece on the turntable by the top, the upper part is fixed to the through-hole cavity bottom plate, a fitting hole is formed in the bottom and one side is opened, the sensor bracket The knob is protruded into the fitting hole of the rotor and a protrusion is formed at the top, at least three inclined grooves in close contact with the rotor projection of the rotor is formed on the bottom surface to prevent over-rotation between the inclined grooves Bosses are formed and a sensor stator, one side of which is supported by the sensor bracket, is fastened to the sensor stator. The sensor member, the sensor member is supported on the upper mounting structure of the weight sensor of the microwave oven, characterized in that the top portion is composed of a pressure louvers are in close contact with the cavity bottom plate.