Base plate structure for microwave oven

专利摘要:
The present invention relates to a full-length baseplate structure of a microwave oven. In the base plate 20 of the present invention, the fastening portion 23 is formed in the plate plate body 21 formed by bending the plate material by press working, and the high voltage transformer 30, which is an electric component, is mounted on the fastening portion 23. do. In this case, at least one fastening hole 25 formed in the fastening part 23 passes through the fastening hole 35 formed in the mounting plate 32 of the high-voltage transformer 30, and the fastening screw 35 is fastened. The fastening screw 35 is projected downward through the plate plate body 21, and the nut 37 is fastened to the protruding end portion. On the other hand, the cut portion 27 is formed along the edge adjacent to the fastening hole 25 of the plate plate body 21. The cut portion 27 is formed to protrude at least more than the tip portion of the fastening screw 35. According to the present invention as described above, the sharp tip of the fastening screw 35 is not exposed to the lower surface of the plate plate body 21, thereby preventing the user or operator from being injured by the fastening screw 35.
公开号:KR20030056981A
申请号:KR1020010087343
申请日:2001-12-28
公开日:2003-07-04
发明作者:이현철
申请人:주식회사 엘지이아이；
IPC主号:

专利说明:

Base plate structure for microwave oven {Base plate structure for microwave oven}
[19] The present invention relates to a microwave oven, and more particularly, to the structure of an electrical equipment base plate constituting the electrical equipment floor bottom surface of the microwave oven.
[20] Microwave ovens produce microwaves to cook foods by heating, and recently, various heating sources have been added to perform faster and more various cooking.
[21] 1 shows a schematic configuration of such a microwave in a perspective view. According to this, the cavity 1 is installed inside the microwave oven. The cavity 1 has a cooking chamber (not shown) in which cooking is performed.
[22] The bottom appearance of the microwave oven is formed by the base plate 3, and the outer case 5 is formed on both sides and the top appearance. And the back plate 6 forms the external appearance of the back of a microwave oven.
[23] The front of the microwave oven is provided with a door 7 and a control panel unit 9. The door 7 opens and closes the cooking chamber formed in the cavity 1 to selectively communicate with the outside. The control panel 9 is provided with various buttons and dials for operating the microwave oven.
[24] On the other hand, the electric compartment 10 is provided on one side of the cavity 1 inside the microwave oven. The electric compartment 10 is provided with various components for generating microwaves for cooking in the cooking chamber. Examples of the component include a magnetron 12, a high voltage transformer 13, and the like. The magnetron 12 is generally installed on the side wall of the cavity 1 and the high voltage transformer 13 is installed on the upper surface of the base plate 3.
[25] 2 shows a detailed configuration of the base plate 3. In general, the base plate (3) is composed of a full length chamber base plate (4) forming the bottom of the electrical chamber 10 and the cavity base plate (4 ') corresponding to the lower portion of the cavity (1). A plurality of parts are installed on the electric chamber base plate 4.
[26] That is, the electric chamber base plate 4 is provided with a high-pressure transformer 13 and a large number of parts. In the cavity base plate 4 ′, there are no parts installed relatively, but the entire area is wide.
[27] However, the prior art as described above has the following problems.
[28] In mounting the electric component including the high voltage transformer 13 to the electric chamber base plate 4, the fastening screw s is attached to the upper portion of the base plate 4 so as to proceed with the work without inverting the base plate 4. Fasten in That is, the fastening screw (s) penetrates through one side of the high voltage transformer (13) to be fastened through the base plate (4).
[29] However, as described above, a sharp portion of the fastening screw s is cut into the bottom surface of the base plate 4 formed by the press work due to the fastening screw s penetrating from the top surface of the base plate 4 to the bottom surface. Protrudingly exposed.
[30] In addition, since the legs L are formed below the base plate 4 so as to form a gap C for the flow of air through the bottom surface f of the microwave oven and the bottom surface f on which the microwave oven is seated. The end of the fastening screw (s) is a problem. That is, when the worker or the user put his hand through the gap (C) is because the worker or the user is injured by the sharp end of the fastening screw (s).
[31] Accordingly, an object of the present invention is to solve the problems of the prior art as described above, and to secure the safety of the base plate portion forming the bottom of the electric room.
[1] 1 is an exploded perspective view showing the configuration of a microwave oven according to the prior art.
[2] Figure 2 is a perspective view showing a base plate structure of a microwave oven according to the prior art.
[3] 3 is a cross-sectional view showing a main portion of a microwave oven in which a base plate according to the prior art is used.
[4] Figure 4 is an exploded perspective view showing the configuration of a preferred embodiment of the base plate structure of the microwave oven according to the present invention.
[5] Figure 5 is a partial cross-sectional view showing the configuration of a microwave oven employing a full-length base plate of the embodiment of the present invention.
[6] Explanation of symbols on the main parts of the drawings
[7] 1: cavity 3: base plate
[8] 4: battlefield baseplate 4 ': cavity baseplate
[9] 5: outer case 6: back plate
[10] 7: door 9: control panel
[11] 10: electric room 13: high voltage transformer
[12] 20: Battlefield Baseplate 20 ': Cavity Baseplate
[13] 23: fastening portion 24: reinforcement beads
[14] 25: fastener 27: cut part
[15] 30: high voltage transformer 32: mounting plate
[16] 33: Fastening hole 35: Fastening screw
[17] 37: Nut 40: Leg
[18] 42: outer case
[32] According to a feature of the present invention for achieving the object as described above, the present invention is a plate plate body constituting the lower portion of the electric chamber, and a fastener for mounting the electric component on the upper surface of the plate plate body on the upper surface of the plate plate body And a fastening part including at least one fastening hole penetrating to be fastened to a lower surface, and a cut part formed along an end edge of the plate plate body adjacent to the fastening hole and extending further below the distal end of the fastener.
[33] The nut is further provided to be fastened to the tip of the fastener.
[34] According to the electric plate base plate structure of the microwave oven according to the present invention having such a configuration, it is possible to prevent an operator or user from being injured while handling the microwave oven.
[35] Hereinafter, a preferred embodiment of the base plate structure of the microwave oven according to the present invention as described above will be described in detail with reference to the accompanying drawings.
[36] 4 is a perspective view showing a preferred embodiment of the electric chamber base plate structure of the microwave oven according to the present invention, and FIG. 5 is a sectional view showing the main components of the microwave oven in which the base plate of the present embodiment is used.
[37] As shown in these figures, the electrical room baseplate 20 and the cavity plate 20 'form the bottom of the microwave oven. In this embodiment, the base plate 20 and the cavity plate 20 ′ are shown as being separated, but are not necessarily the same, and may be formed integrally.
[38] The plate plate body 21 constituting the electric chamber base plate 20 is formed by bending a metal plate into a predetermined shape by pressing. The plate plate body 21 is formed with a fastening portion 23 to which the high voltage transformer 30 is mounted, for example. The high-pressure transformer 30 is a heavy object to form a fastening portion 23 to the plate plate body 21 separately. Reinforcing beads 24 are formed in the fastening portion 23 so as to sufficiently support the load of the high-voltage transformer 30. The reinforcement bead 24 is formed to protrude a predetermined height to the plate plate body 21. A fastening hole 25 is drilled in the reinforcement bead 24. The fastening hole 25 is for fastening the high-voltage transformer 30, and all four are formed, but only at least one fastening hole 25 may be punched. In the part not forming the fastening hole 25, instead of the fastening hole 25, one side of the reinforcing bead 24 is cut to have a structure in which the edge of the mounting plate 32 of the high-voltage transformer 30 can be inserted. It may be.
[39] On the other hand, as shown in Figure 4, the cut portion 27 is formed at one end of the plate plate body 21, that is, the edge adjacent to the portion where the fastening hole 25 is formed. The cut portion 27 is formed to extend toward the bottom surface f on which the microwave oven is placed, and is formed to be concave when viewed from the top surface of the plate plate body 21. It is preferable that such cut portion 27 extends below the distal end of the fastening screw 35 fastened to the fastening hole 25.
[40] The lower end of the high-voltage transformer 30 is provided with a mounting plate 32 for mounting on the plate plate body 21. In each of the four corners of the mounting plate 32, a fastening hole 33 through which the fastening screw 35 penetrates is drilled. Of course, as described above, depending on the configuration of the fastening portion 23, the fastening hole 33 may not be formed.
[41] The fastening screw 35 which penetrates the fastening hole 33 of the mounting plate 32 and is fastened to the fastening hole 25 of the plate plate body 21 is fastened downward from the upper portion of the plate plate body 21. The nut 37 is fastened to a part of the fastening screw 35 protruding downward from the plate plate body 21.
[42] On the other hand, the leg 40 is mounted on one side of the lower surface of the plate plate body 21. The leg 40 serves to support the microwave oven on the bottom surface f, and forms a space in which air can flow between the bottom surface f of the plate plate body 21 and the bottom surface f. Also Reference numeral 42 is an outer case.
[43] Hereinafter, the operation of the electric chamber base plate structure of the microwave oven according to the present invention having the configuration as described above will be described.
[44] In the present invention, the fastening screw 35 penetrates from the top surface of the plate plate body 21 to the bottom surface when fastening the electric component to the electric chamber base plate 20. For example, the high pressure transformer 30 is seated on the fastening part 23, and the fastening hole 33 of the mounting plate 32 and the fastening hole 25 of the fastening part 23 coincide with each other.
[45] The fastening screw 35 passes through the fastening hole 33 to be fastened to the fastening hole 25. Next, the nut 37 is fastened to the tip of the fastening screw 35 protruding downward from the plate plate body 21. Of course, the fastening screw 35 may be directly coupled with the nut 37 instead of the fastening hole 25.
[46] When fastening the high pressure transformer 30 to the plate plate body 21 as described above, the fastening screw 35 is fastened to the fastening hole 25 of the plate plate body 21, and the nut 37 to the fastening screw 35. By further tightening the fastening state of the high-voltage transformer 30 is more robust.
[47] As such, when the high-voltage transformer 30 is mounted on the base plate 20 of the electrical equipment room and the microwave oven is placed on the bottom surface f, the leg (between the bottom surface f and the cut portion 27) is formed. A relatively narrow gap C 'is formed as compared to the gap between the plate plate 21 and the bottom surface f formed by 40. The gap C 'is relatively narrower than the gap between the bottom surface f of the plate body 21 and the user's or operator's hand. Therefore, in the state where the microwave oven is seated on the bottom surface (f), the user can not put the hand to the lower portion of the base plate 20 to prevent inadvertent injury.
[48] Further, the nut 37 is fastened to the distal end of the fastening screw 35, that is, the portion projecting from the lower surface of the plate plate body 21, so that the sharp distal end of the fastening screw 35 is not exposed. Therefore, even if the worker or the user lifts the microwave oven completely and catches the part of the fastening screw 35 protruding from the lower surface of the electric chamber base plate 20, the sharp part of the fastening screw 35 by the nut 37. This is not exposed and the user is not injured.
[49] In the electric plate base plate structure of the microwave oven according to the present invention as described in detail above, the nut is fastened to the distal end of the fastening screw for mounting the electric component, and the protrusion of the base plate protrudes further toward the bottom than the distal end of the fastening screw. The cut part was formed in the edge.
[50] Therefore, the user's or operator's hands are prevented from accessing to the distal end of the fastening screw by the cut part, and the nut is fastened to the distal end of the fastening screw even when the fastening screw approaches the fastening screw. Since it does not touch the hand, it is possible to prevent inadvertently injured by the distal end of the fastening screw protruding from the base plate.

权利要求:
Claims (2)
[1" claim-type="Currently amended] Plate plate body constituting the lower part of the electric compartment,
A fastening part including at least one fastening hole through which a fastener for mounting an electric component on an upper surface of the plate plate body is fastened from an upper surface of the plate plate body to a lower surface thereof;
And a cut portion formed along an end edge of the plate plate body adjacent to the fastening hole and extending further below the tip portion of the fastener.
[2" claim-type="Currently amended] The base plate structure of claim 1, wherein the nut is further provided to be fastened to the tip of the fastener.

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同族专利:

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公开号 | 公开日

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引用文献:

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公开号 | 申请日 | 公开日 | 申请人 | 专利标题

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法律状态:
2001-12-28|Application filed by 주식회사 엘지이아이

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2001-12-28|Priority to KR1020010087343A

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2003-07-04|Publication of KR20030056981A

优先权:

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申请号 | 申请日 | 专利标题

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KR1020010087343A|KR20030056981A|2001-12-28|2001-12-28|Base plate structure for microwave oven|