KR20060082721A - A outcasing and a vent grille structure for microwave oven - Google Patents

Abstract

The present invention relates to an out casing and vent grill mounting structure of a microwave oven body. In the present invention, the outer casing 52 forms the exterior of the microwave oven body 50, and the cavity assembly 56 forming the body has a front plate 58 and a rear surface which form the front surface of the microwave oven body 50. The upper plate 62, the lower plate 64, and the side plate 66, which form upper and lower sides and both sides of the rear plate 60 to be formed, and the cooking chamber 57, are formed, and the cooking chamber 57 is provided therein. In addition, the back plate 60 is formed to protrude relatively upward from the top plate 62. An air guide 76 is provided above the upper plate 62, a flow path is formed between the outer casing 52, and a filter 82 is provided at the front end thereof. A discharge port 80 through which air is exhausted is formed at the tip of the air guide 76. A vent grill 90 having an exhaust hole 92 is installed to be coupled to the air guide 76 at the front of the cavity assembly 56 corresponding to the air guide 76.

Microwave Oven, Cavity Assembly, Vent Grill, Air Guide

Description

A outcasing and a Vent grille structure for microwave oven}

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

Figure 2 is an exploded perspective view showing the configuration of a preferred embodiment of the microwave oven employing the outcasing and vent grill mounting structure according to the present invention.

Figure 3 is a perspective view showing the main portion of the air guide of the embodiment of the present invention.

Explanation of symbols on the main parts of the drawings

50: microwave oven body 52: outer casing

54: Fastener 56: Cavity Assembly

58: front panel 60: back panel

62: upper plate 64: lower plate

66: side plate 68: door

74: battlefield room 76: air guide

78: vent pan assembly 80: outlet

82: filter 84: extension

86: coupling groove 88: coupling sphere

90: vent grill 92: exhaust hole                 

94: fastening piece 96: coupling hole

100: fastener 102: ground wire

The present invention relates to a hood and microwave oven body, and more particularly to a mounting structure of the vent grill and the out casing forming the appearance of the microwave oven body that serves as the outlet of air flowing in and out of the microwave oven body.

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

As shown in the figure, the outer casing 4 forms the exterior of the microwave oven body 2, and the outer casing 4 is formed with a plurality of fastening holes 6 for coupling. The cooking chamber 9 is provided inside the cavity assembly 8 constituting the frame of the microwave oven body 2. The cooking chamber 9 is a place where food is cooked by microwave or heater heat. The front door 10 of the microwave oven main body 2 is provided with a door 10 for selectively opening and closing the cooking chamber (9). The door 10 is provided with a door handle 12 for opening and closing the door 10.

The front side of the microwave oven main body 2 is provided with a control unit 14 for indicating the operation and driving state, etc. for driving the microwave oven main body 2. In addition, an electrical equipment chamber 16 is provided behind the control unit 14, that is, inside the cavity assembly 8.                         

Various electrical components for the operation of the microwave oven body are installed in the electrical compartment 16. For example, a magnetron (not shown) for oscillating microwaves, a high voltage transformer (not shown) for generating a high voltage for driving the magnetron, various lead wires, and the like are provided.

An upper heater (not shown) is installed at one upper side of the cavity assembly 8. The upper heater is shielded by a heater cover, an air guide 18 is installed on the heater cover. The vent fan assembly 20 is installed at the rear end of the air guide 18 to form an air flow. The air flow formed by the vent pan assembly 20 flows out of the cooking chamber 9 along the flow path between the air guide 18 and the outer casing 4.

The air flow is discharged to the discharge port 24 opened on the upper side of the front plate 22 of the cavity assembly 8, and the filter 26 is mounted on the air guide 18 near the discharge port 24. The filter 26 serves to purify the air generated in the interior of the microwave oven body 2 so that only the purified air is discharged to the outside. A plurality of grooves 28 recessed downward are formed at the upper end of the front plate 22. A fastening hole 30 is formed in the groove 28. The groove 28 and the fastening hole 30 pass through the fastening hole 6 of the outer casing 4 and the coupling hole 40 of the vent grill 34 with a coupling hole 32 such as a screw and the cavity. The assembly 8 and the outer casing 4 and the vent grill 34 serves to couple.

A vent grill 34 is installed in front of the front plate 22 of the cavity assembly 8, that is, in front of the discharge port 24 on which the filter 26 is mounted. The vent grill 34 is located above the door 10 of the microwave oven body 2 corresponding to the air guide 18. A plurality of exhaust holes 36 are formed in the vent grill 34 to serve as a passage for exhausting air. A fastening piece 38 is provided at the rear upper end of the vent grill 34. The fastening piece 38 corresponds to the groove 28 of the front plate 22 and is formed to be seated in the groove 28. The coupling piece 38 is formed with a coupling hole 40 corresponding to the coupling hole 6 of the outer casing 4 and the coupling hole 30 of the groove 28. In addition, the ground wire 44 for grounding the microwave oven body 2 is fastened to the groove 28 at the top of the front plate 22 by the fastener 42.

However, there are the following problems in the out casing and vent grill mounting structure of the microwave oven according to the prior art as described above.

That is, when the vent grill 34 is conventionally installed, it is inserted into the fastening piece 38 of the vent grill 34 between the groove 28 of the front plate 22 and the upper surface of the outer casing 4. The fastening hole 30 of the front plate 22 and the fastening hole 6 of the outer casing 4 and the coupling hole 40 of the vent grill 34 communicate with each other, and pass through the coupling hole 32 to engage. do.

However, since the vent grill 34 is assembled with the upper end of the front plate 22 and the size of the front plate 22 is upward, the material cost is increased as the size of the front plate 22 is increased, and the assemblability is achieved. There is a falling problem.

In addition, since the front end of the ground wire 44 is mounted on the top of the front plate 22, the length of the ground wire 44 is increased as the front plate 22 is increased, thereby increasing the material cost.

Accordingly, the present invention is to solve the problems of the prior art as described above, an object of the present invention is to provide an out casing and vent grill mounting structure of a microwave oven using a small front plate.

Another object of the present invention is to provide an out casing and vent grill mounting structure of a microwave oven that can use a short ground wire.

According to a feature of the present invention for achieving the object as described above, the present invention comprises an outer casing to form the appearance of the microwave oven body; A frame of the microwave oven main body is provided, and a cooking chamber is provided therein, a front plate forming a front surface of the microwave oven body, a back plate forming a rear surface, and a top plate and a bottom plate forming upper and lower sides and both sides of the cooking chamber. And a side assembly, wherein the back plate is formed to protrude relatively upward from the top plate; An air guide disposed above the upper plate to form a flow path between the outer casing and an exhaust port through which air is exhausted at the front end; And a vent grill installed on the front of the cavity assembly corresponding to the air guide and having an exhaust hole discharged to the outside of the microwave oven body.

In the air guide, both side walls of the outlet port are formed with extension parts extending to the front end of the front plate, a coupling groove is formed at the front end of the extension part, and a rear end fastening piece is formed at the rear upper end of the vent grill. It is preferable that the corresponding coupling hole is formed to be coupled to the coupling groove.

A fastening hole is formed in the front plate, and the tip of the ground wire for grounding is preferably coupled to the fastening hole.

According to the out casing and the vent grill mounting structure of the microwave oven according to the present invention having such a configuration, since the vent grill is fastened to the air guide, the height of the front plate is reduced, the material cost is saved, and the assemblability is improved.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT Hereinafter, preferred embodiments of an out casing and vent grill mounting structure of a microwave oven according to the present invention will be described in detail with reference to the accompanying drawings.

2 is an exploded perspective view showing the configuration of a preferred embodiment of the microwave oven employing the out casing and vent grill mounting structure according to the present invention, Figure 3 is a main portion perspective view showing the main portion of the air guide of the embodiment of the present invention Is shown.

As shown in these figures, the outer casing 52 forms the appearance of the microwave oven body 50, and the outer casing 52 is provided with a plurality of fastening holes 54 for coupling. The cooking chamber 57 is provided inside the cavity assembly 56 constituting the frame of the microwave oven body 50, and the electrical equipment chamber 74, which will be described below, is provided on the side of the cooking chamber 57. The cooking chamber 57 is a place where food is cooked by microwave or heater heat.

The cavity assembly 56 includes a front plate 58 forming a front surface, a back plate 60 forming a rear surface, and an upper plate 62 forming top and bottom surfaces and both sides of the cooking chamber 57. It consists of the bottom plate 64 and the side plate 66. The back plate 60 protrudes relatively upward from the top plate 62. That is, the front plate 58 does not protrude upward from the upper plate 62, and only the rear plate 60 protrudes above the upper plate 62. A predetermined space is formed above the cooking chamber 57 by the protruding back plate 60, the outer casing 52, and the top plate 62, and an air guide 76, a heater, and the like are installed in the space.

A door 68 for selectively opening and closing the cooking chamber 57 is installed on the front surface of the microwave oven body 50. The door 68 is provided with a door handle 70 for opening and closing the door 68. One side of the door 68 is provided with a control unit 72 indicating an operation and a driving state for driving the microwave oven body 50. In addition, the electric chamber 74 is provided at the rear of the control unit 72, that is, inside the cavity assembly 56.

Various electrical components for the operation of the microwave oven body 50 are installed in the electrical equipment room 74. For example, a magnetron for oscillating the microwave, a high voltage transformer (not shown) for generating a high voltage for driving the magnetron (not shown), and various lead wires are provided.

An upper heater (not shown) is installed at one upper side of the cavity assembly 56. The upper heater is shielded by a heater cover (not shown), and an air guide 76 is installed above the heater cover. A vent pan assembly 78 is installed at the rear end of the air guide 76 to form an air flow. The air flow formed by the vent pan assembly 78 flows out of the cooking chamber 57 along the flow path between the air guide 76 and the outer casing 52.

The air flow is discharged to the discharge port 80 formed at the front end of the flow path between the air guide 76 and the outer casing 52, the filter mounting portion (80 ') is provided in the discharge port (80) Is mounted. The filter 82 purifies the air generated inside the microwave oven body 50 so that only the purified air is discharged.

An extension portion 84 protruding to extend to the upper end of the front plate 58 of the cavity assembly 56 is integrally formed at both side walls of the outlet 80 formed in the air guide 76, that is, the filter mounting portion 80 ′. Is formed. A coupling groove 86 is formed at an upper end of the extension part 84, and is formed to correspond to the fastening hole 54 of the outer casing 52. The coupling groove 86 is fastened to the outer casing 52 and the vent grill 90 through a fastener 88 such as a screw.

A vent grill 90 is installed in front of the cavity assembly 56, that is, in front of the discharge port 80 on which the filter 82 is mounted. The vent grill 90 is located above the microwave oven body 50 corresponding to the air guide 76. The vent grill 90 is provided with a plurality of exhaust holes 92 as passages for exhausting air.

The fastening piece 94 is formed at the rear upper end of the vent grill 90. The fastening piece 94 corresponds to the coupling groove 86 of the air guide 76, and the fastening piece 94 fastens the coupling groove 86 and the outer casing 52 of the air guide 76. Coupling holes 96 corresponding to the balls 54 are formed. In addition, the coupling hole 98 of the coupling hole 54 and the coupling piece 94 of the outer casing 52 passes through the coupling hole 98 and is inserted into the coupling groove 86 to allow the outer casing 52 and the vent. The grill 90 and the air guide 76 are combined.

A fastening hole 100 is formed at an upper end of the front plate 58. The end of the ground wire 102 for grounding of the microwave oven body 50 is fastened by the fastener 104 to the fastening hole 100.

Hereinafter will be described in detail the installation process and operation of the out casing and vent grill mounting structure of the microwave oven according to the present invention having the configuration as described above.

First, the front end of the ground wire 102 is coupled by passing through the fastener 104 through the fastening hole 100 formed in the front plate 58 of the cavity assembly 56. The air guide 76 having the filter mounting portion 80 ′ is mounted on the upper side of the cavity assembly 56. At this time, the filter mounting portion 80 ′ is positioned at the front of the cavity assembly 56, and the vent pan assembly 78 is positioned at the rear side of the air guide 76.

After inserting the filter 82 into the filter mounting portion 80 ′, the vent grill 90 is installed. The fastening piece 94 of the vent grill 90 is positioned on an upper end of both side wall extensions 84 of the filter mounting portion 80 ′. The coupling hole 96 of the fastening piece 94 corresponds to the coupling groove 86 of the extension portion 84.

The outer casing 52 is installed outside the cavity assembly 56 in which the vent grill 90 is installed. The fastening hole 54 of the outer casing 52 is positioned to correspond to the coupling hole 96 of the vent grill 90 and the coupling groove 86 of the extension 84. The outer casing 52 is passed through the coupling hole 88 of the coupling hole 54 of the outer casing 52 and the coupling hole 96 of the vent grill 90 and the coupling groove 86 of the extension 84. And the vent grill 90 is coupled to the cavity assembly 56 in which the air guide 76 is installed.

When the user operates the microwave oven body 50, the smoke and heat from the cooker 57 are sucked into the vant pan assembly 78 through the inside of the microwave oven body 50 and discharged to the front surface. The air discharged to the front surface is purified while passing through the filter 82 provided at the front end along the flow path in the air guide 76. The purified air is discharged to the outside along the exhaust hole 92 of the vent grill 90 through the discharge port 80.

The rights of the present invention are not limited to the embodiments described above, but are defined by the rooms described in the claims, and those skilled in the art can make various modifications and adaptations within the scope of the rights described in the claims. It is self-evident.

In the outcasing and vent grill mounting structure of the microwave oven according to the present invention as described in detail above, the following effects can be expected.

That is, since the vent grill is fastened to the air guide, the height of the front plate decreases, thereby reducing the material cost and increasing the assemblability.

In addition, since the height of the front plate is reduced, the length of the ground wire installed on the top of the front plate is shortened by that much, thereby reducing the material cost.

Claims (3)

An outer casing to form an appearance of the microwave oven body; A frame of the microwave oven main body is provided, and a cooking chamber is provided therein, a front plate forming a front surface of the microwave oven body, a back plate forming a rear surface, and a top plate and a bottom plate forming upper and lower sides and both sides of the cooking chamber. And a side assembly, wherein the back plate is formed to protrude relatively upward from the top plate; An air guide disposed above the upper plate to form a flow path between the outer casing and an exhaust port through which air is exhausted at the front end; And, The vent casing is installed so as to be coupled to the air guide on the front of the cavity assembly corresponding to the air guide, the vent grill is discharged to the outside of the microwave oven body; Out casing and vent grill mounting of the microwave oven, characterized in that it comprises a rescue. The method of claim 1, In the air guide, both side walls of the outlet port are formed with extension parts extending to the front end of the front plate, a coupling groove is formed at the front end of the extension part, and a rear end fastening piece is formed at the rear upper end of the vent grill. The out casing and vent grill mounting structure of the microwave oven, characterized in that the corresponding coupling hole is formed to be coupled to the coupling groove. The method according to claim 1 or 2, A fastening hole is formed in the front plate, and the outer casing and vent grill mounting structure of the microwave oven, characterized in that the front end of the grounding wire is coupled to the fastening hole.

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