KR100420331B1 - Latch board mounting structure in microwave oven - Google Patents

Abstract

The present invention relates to a latch board mounting structure of a microwave oven. A hook hole 32 is formed in the mounting flange 30 of the present invention, and latches to correspond to a gap between the mounting flange 30 and the cavity side wall 23 partitioning the cooking chamber 22 and the electrical equipment chamber 23. The board 40 is formed. An elastic leg 42 is formed at the front end of the latch board 40 to be supported by the rear surface of the front plate 25. The elastic leg 42 serves to accurately set the provisional assembly position of the latch board (40). One side of the latch board 40 is formed with a hook piece (43) to be hooked to the hook hole (32). The opposite surface of the mounting flange 30 of the latch board 40 is configured to be supported by the side wall 23. In the present invention as described above, when the latch board 40 is inserted between the mounting flange 30 and the side wall 23, the latch board 40 is moved to a proper position by the restoration of the elastic leg 42, and is assembled. Therefore, the workability of the assembly work is greatly improved.

Description

Latch board mounting structure in microwave oven

The present invention relates to a microwave oven, and more particularly, to a latch board mounting structure for mounting a switch for detecting an open / closed state of a microwave oven door and maintaining the closed state of the door.

1 illustrates an exploded perspective view of a general microwave oven, and FIG. 2 illustrates a latch board mounting structure according to the related art in a perspective view. As shown in the drawing, in one side of the cavity 1 constituting the frame of the microwave oven, a cooking chamber 2 through which cooking of food is performed is formed. On the other side of the cavity (1) is formed an electric chamber 3, in which various electric components are installed. An outer case 5 is provided to surround the upper surface and both sides of the cavity 1 to form an outer appearance of the upper surface and both sides of the microwave oven.

The front plate 7 constitutes a front surface of the cavity 1, and one end of the front plate 7 is formed in the through hole 7 ′. The through portion 7 ′ is a portion corresponding to the front of the electric compartment 3, and the control panel portion 12 to be described below is mounted. Of course, the front plate 7 has a portion corresponding to the cooking chamber 2 is opened. On the front plate 7 corresponding to the electric compartment 3 side adjacent to the cooking chamber 2, latch slots 8 are formed at a predetermined interval up and down. A mounting flange 9 is provided on one side of the through hole 7 ′ adjacent to the latch slot 8. The mounting flange 9 is perforated with a fastening hole 9 'at the top and bottom thereof. The fastening hole 9 'is not circular but is formed long in one direction.

On the other hand, the door 10 is mounted to the front plate (7) to open and close the cooking chamber (2). One end of the door 10 is mounted to the front plate 7 to open and close, and a front end of the door 10 includes a latch (not shown) at a position corresponding to the latch slot 8. In addition, the front plate 7 corresponding to the front of the electric compartment 3 is provided with a control panel 12 having various buttons and dials for operating the microwave oven.

Next, a latch board 15 is mounted on the mounting flange 9. The latch board 15 is provided with a plurality of switches 19 for latching the door 10 to maintain the closed state of the door and detecting the closed state of the door 10. The latch board 15 has fastening holes 16 formed at upper and lower ends of the latch board 15 corresponding to the fastening holes 9 ′ for mounting on the mounting flange 9. Reference numeral 16 'is a fastening screw.

In the latch board 15, guide surfaces 17 are formed to be inclined upwardly inwards at positions corresponding to the latch slots 8, respectively. The guide surface 17 is a part for guiding the latch when the door 10 is closed. The latch is engaged at the leading end of the guide surface 17 at the closing of the door 10. The latch board 15 is provided with a plurality of switches 19. A structure for installing the switch 19 is provided on the latch board 15. Reference numeral 19 ′ denotes a lever for driving the switch 19.

In the related art having such a configuration, the mounting of the latch board 15 to the mounting flange 9 will be described. First, the latch board 15 is positioned to contact the rear surface of the mounting flange 9 and the latch slot 8, the fastening hole (9 ') and the latch board 15 of the mounting flange (9) The fastening holes 16 to match.

The fastening screw 16 'passes through the fastening hole 9' to be fastened to the fastening hole 16. At this time, the tightening screw 16 'is not completely tightened, and then the position of the latch board 15 is confirmed and set. Then, the fastening screw 16' is completely tightened.

However, the prior art as described above has the following problems.

First, there is no structure that can be assembled to the mounting board (9), the latch board 15, there is no operator to tighten the fastening screw (16 ') slightly in a state in which the latch board 15 is in close contact with the mounting flange (9). Assemble Then, the latch board 15 was placed in the correct position, and then, while holding the driver in one hand, the fastening screw 16 'was tightened while the latch board 15 was fixed in the other hand. Therefore, there is a problem in that the assembly of the latch board 15 is cumbersome.

After the assembly of the latch board 15, the latch board 15 is moved in the front-rear direction with respect to the mounting flange 9 to perform contact adjustment and adjustment to prevent pulling leakage to hold the correct position. Therefore, there is also a problem that the work time of the assembly work is relatively long.

Accordingly, an object of the present invention is to solve the problems of the prior art as described above, to provide a latch board mounting structure that can be mounted more easily the latch board.

Another object of the present invention is to provide a latch board mounting structure that does not require adjustment work for positioning in the mounting process.

1 is an exploded perspective view showing the appearance configuration of a microwave oven according to the prior art.

Figure 2 is an exploded perspective view showing a latch board mounting structure of a microwave oven according to the prior art.

Figure 3 is an exploded plan view showing a preferred embodiment of the latch board mounting structure of the microwave oven according to the present invention.

Figure 4 is a plan view of a latch board mounting structure of a microwave oven according to the present invention.

5 is a schematic cross-sectional view showing the main portion of the embodiment of the present invention.

Explanation of symbols on the main parts of the drawings

20: cavity 22: cooking chamber

23: battlefield 25: front plate

27: cavity side wall 30: mounting flange

32: Hook hole 34,35: Fastener

40: latch board 42: elastic leg

43: hanger 46: fasteners

47: guide surface 48: locking jaw

50: switch 55: spacer

According to a feature of the present invention for achieving the object as described above, the present invention is provided with a mounting flange that is bent on one side of the front plate constituting the cavity and the hook hole is formed, and the hook piece to be hooked to the hook hole And a latch board having a width corresponding to an interval between the one side wall of the cavity facing the mounting plate and the mounting plate, and having a plurality of switches installed thereon, and formed at the front end of the latch board to the rear surface of the front plate. It is configured to include an elastic leg that is elastically setting the installation position of the latch board while being supported, the latch board is temporarily assembled in place by being inserted between the one side wall of the cavity and the mounting plate.

A plurality of elastic legs are integrally formed at the upper and lower ends and the middle of the latch board, and have elasticity in terms of their material and shape.

A fastening hole for fastening the fastener is formed in the latch board, and a fastening hole for penetrating the fastener is formed in a circle at a corresponding position of the latch board.

The latch board further includes a spacer in close contact with one side wall of the cavity facing the mounting plate.

The latch board mounting structure of the microwave oven according to the present invention having such a configuration has an advantage that the mounting operation of the latch board is quick and simple.

Hereinafter, a preferred embodiment of a latch board mounting structure of a microwave oven according to the present invention will be described in detail with reference to the accompanying drawings.

Figure 3 shows an exploded plan view of a preferred embodiment of the latch board mounting structure of the microwave oven according to the present invention, Figure 4 shows the configuration of the embodiment of the present invention in a plan view, Figure 5 is a schematic configuration of the embodiment of the present invention Shown in cross section.

As shown in these figures, the front plate 25 forms a front surface of the cavity 20 in which the cooking chamber 22 is formed on one side of the microwave oven. An inner side of the cavity 20 is provided with an electrical equipment room 23 in which electrical components are installed. The cooking chamber 22 and the electrical equipment chamber 23 are partitioned by side walls 27.

One side of the front plate 25 is formed with a mounting flange 30 is bent. The mounting flange 30 extends rearward from the tip of the electric compartment 23. The mounting flange 30 is bent perpendicularly to the front plate 25 to the rear of the front plate 25. In this way, the mounting flange 30 and the side wall 27 of the cavity 20 are substantially parallel to each other.

A hook hole 32 is formed in the mounting flange 30. The hook hole 32 is a portion on which the hook piece 43 to be described below is hooked. Fastening holes 34 and 35 are formed at portions corresponding to upper and lower ends of the mounting flange 30. The fastening holes 34 and 35 are formed in a circular shape.

The latch board 40 is generally molded in a synthetic resin material, and a plurality of elastic legs 42 are formed at the front end thereof. The elastic legs 42 are supported on the rear surface of the front plate 25, and a plurality of elastic legs 42 are formed along the top and bottom directions of the front end portion of the latch board 40 corresponding to the rear surface of the front plate 25. In the present embodiment, as shown in FIG. 3, two elastic legs 42 are formed at the top, bottom, and center of the latch board 40. The elastic legs 42 extend inclined upward or downward toward the front plate 25. The elastic leg 42 has a predetermined elasticity in terms of its material and shape.

The latch board 40 is formed with a hook piece 43 which is engaged with the hook hole 32 of the mounting flange 30 at a corresponding position. The hook piece 43 protrudes from the latch board 40 toward the mounting flange 30 and is bent vertically downward to be hooked to the hook hole 32.

On the other hand, the latch board 40 has a fastening hole 46 is formed at a position corresponding to the fastening holes (34, 35) of the mounting flange (30). In addition, the latch board 40 includes a guide surface 47 for inserting and guiding a latch (not shown) through a latch slot (not shown) formed in the front plate 25 when the door is closed. do. The guide surface 47 is formed to be inclined toward the rear upper portion of the latch board 40 with reference to the drawings. A locking jaw 48 is formed at the tip of the guide surface 47. The latching jaw 48 is a portion on which the latch is engaged, so that the door is not opened arbitrarily.

A plurality of switches 50 are installed in the latch board 40. The switch 50 is driven by the latch and serves to detect the open / closed state of the door. A spacer 55 is formed on the latch board 40. The spacer 55 is positioned in a space between the side wall 27 and the latch board 40 so that the latch board 40 does not flow between the mounting flange 30 and the side wall 27. Of course, the latch board 40 may not be moved by adjusting a distance between the side wall 27 and the mounting flange 30 without forming the spacer 55.

Hereinafter, the operation of the latch board mounting structure of the microwave oven according to the present invention having the configuration as described above.

First, it will be described that the latch board 40 is mounted in the embodiment of the present invention. The operator inserts the latch board 40 into the space between the mounting flange 30 and the side wall 27. By such insertion, the elastic leg 42 is in close contact with the rear surface of the front plate 25 is elastically deformed.

When the latch board 40 is inserted as described above, one side of the latch board 40 is in close contact with the side wall 27. Of course, when the spacer 55 is formed, the spacer 55 is in close contact with the side wall 27. And the hook piece 43 is inserted into the pressing state on the inner surface of the mounting flange 30 and meets the hook hole 32, it is restored to be hooked to the hook hole (32).

Then, the latch board 40 is inserted between the mounting flange 30 and the side wall 27 as described above, and the elastic leg 42 is pressed against the rear surface of the front plate 25 and then released, The latch board 40 is seated in the correct position while the elastic leg 42 is restored.

At this time, the latch board 40 is the hook piece 43 is hooked to the hook hole 32 of the mounting flange 30, the elastic leg 42 is supported on the back surface of the front plate 25 In this state, the latch board 40 is in close contact with the side wall 27. Therefore, the latch board 40 maintains a preassembled state between the mounting flange 30 and the side wall 27 and is not removed unless a large external force is applied.

Next, in order to prevent the latch board 40 from flowing, when the fastening screw is fastened to the fastening hole 46 of the latch board 40 through the fastening hole 34, the assembly of the latch board 40 is completed. do.

And a fastening hole of the mounting flange 30 to a fastening hole 46 formed at an upper end of the latch board 40 depending on design conditions (for example, when the vertical length of the latch board 40 is relatively long). The fastening screw penetrating (35) may be fastened.

Within the scope of the basic technical spirit of the present invention, many other modifications will be possible to those skilled in the art.

In the latch board mounting structure of the microwave oven according to the present invention as described in detail above, when the latch board is inserted toward the rear surface of the front plate through the mounting flange and the side wall of the cavity, the latch board is positioned in position by the elastic legs at the front end thereof. It is mounted on the mounting flange while it is seated on it. This eliminates the need for separate pull leakage and contact failure prevention during temporary assembly, resulting in shortening of the assembly time and greatly improving the workability of the assembly work.

In addition, it is possible to maintain the provisional assembly of the latch board even without a separate fastener, so that the work for fastening the latch board after the temporary assembly may be more easily performed.

Claims (4)

A mounting flange bent at one side of the front plate constituting the cavity and having a hook hole; A latch board having a hook piece that is hooked to the hook hole, the latch board having a width corresponding to a distance between the one side wall of the cavity facing the mounting plate and the mounting plate and having a plurality of switches installed thereon; It is formed on the front end of the latch board is configured to include an elastic leg that is supported on the back surface of the front plate to elastically set the installation position of the latch board, The latch board mounting structure of the microwave oven, characterized in that the latch board is temporarily assembled by being inserted between the one side wall of the cavity and the mounting plate. The latch board mounting structure of claim 1, wherein a plurality of elastic legs are integrally formed at upper and lower ends and in the middle of the latch board, and have elasticity in terms of material and shape. The microwave oven according to claim 1 or 2, wherein a fastening hole for fastening the fastener is formed in the latch board, and a fastening hole for penetrating the fastener is formed in a circular shape at a corresponding position of the latch board. Latchboard mounting structure. The latch board mounting structure of claim 3, wherein the latch board further comprises a spacer in close contact with one side wall of the cavity facing the mounting plate.