JPH0454718Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Purpose of the Invention] (Industrial Application Field) The present invention relates to a microwave oven for cooking food with a magnetron, and particularly relates to a magnetron mounting device for this microwave oven.

(Prior Art) As shown in FIG. 4, the magnetron mounting means for this type of microwave oven that has already been proposed is such that when assembling the magnetron, the box-shaped case body 1 is laid down on its side on a flat workbench a. An oven frame 4 which separates the oven 2 and the machine room 3 is provided in the case body 1, and a magnetron 5 is attached to one side wall 4a of the oven frame 4, and its antenna 5a is attached to the oven frame 4. 2 and is fixed with each set screw 6. In particular, when installing the magnetron 5, the magnetron 5 is held in such a manner that it is pressed against one side wall 4a of the oven frame 4 by placing a jig b as a pedestal on the workbench a in advance. After that, each set screw 6 is tightened and fixed.

(Problems to be Solved by the Invention) However, since the magnetron mounting means for the microwave oven described above requires a jig b as a pedestal for mounting the magnetron, when assembling and replacing the magnetron 5, the above-mentioned A jig b must be prepared, and the installation operation is troublesome, and in particular, it is difficult to reassemble the magnetron 5 at a predetermined position when replacing it.

In order to solve the above-mentioned difficulties, the present invention provides a microwave oven in which the magnetron can be accurately installed in a predetermined position without using a jig when assembling or replacing the magnetron. It is something.

[Structure of the idea]

(Means for Solving the Problems and Their Effects) The present invention provides a microwave oven in which an oven frame is provided in a case body to separate an oven and a machine room, and a magnetron is attached to a side wall of the oven frame. A guide plate that also serves as a mounting jig and has a length that is approximately the same as the width of the machine room is pasted on two sides of the magnetron, so that it can be assembled without using a jig. It is.

(Example) Hereinafter, the present invention will be described with reference to an illustrated example.

It should be noted that the present invention will be described with the same reference numerals attached to the same constituent members as in the above-described specific example.

In FIGS. 1 to 3, reference numeral 1 denotes a box-shaped case body, and the case body 1 is provided with an oven frame 4 that separates and forms an oven 2 and a machine room 3. A magnetron 5 is fixed to one side wall 4a of the oven frame 4 with set screws 6, with its antenna 5a protruding into the oven 2. Further, on two sides of the magnetron 5, a guide plate 7 having an L-shaped cross section is provided.
As shown in FIG. 3, the guide plate 7 is attached with a length B' that is approximately the same as the width B of the machine room 3, and this guide plate 7 is attached to a mounting jig when assembling the magnetron 5. It also serves as a heat shield and guides cooling fluid.

On the other hand, the magnetron 5 located in the machine room 3
On one side, a cooling fan 8, such as a cross-flow fan, fixed to the bottom plate 1a with a bracket 8a is provided integrally with an air supply duct 9. On one side of the guide plate 7, a ventilation duct 10 is provided. is an air supply port 11 bored in one side wall 4a of the oven frame 4.
It is installed in such a way that it communicates with the. In addition, the bottom plate 1 of the case body 1 where the machine room 3 is located
A high voltage transformer 12 is provided at the bottom plate 1a, and an intake hole 13 is formed in the bottom plate 1a near the high voltage transformer 12.

Therefore, when heating and cooking, when the magnetron 5 is energized and the cooling fan 8 for cooling the magnetron 5 is driven, the cooling fan 8
cools the magnetron 5 through the air supply duct 9, and then cools the magnetron 5 through the air supply duct 10 and the air supply port 11.
The steam and food gas inside the oven 2 are exhausted to the outside of the oven through an exhaust port (not shown).

On the other hand, although the cold air flowing into the machine room 3 from the intake hole 13 exchanges heat with the high-pressure transformer 12 and is transferred to the air supply duct 9 by the cooling fan 8, the heat of the high-pressure transformer 12 is , a portion 7a of the guide plate 7 provides heat insulation.

On the other hand, as shown in FIG. 3, when the magnetron 5 is attached to one side wall 4a of the oven frame 4, the case body 1 incorporating the oven frame
The magnetron 5 is placed on its side on a workbench a, and a guide plate 7 which also serves as a mounting jig, which has been attached to one side wall 4a of the oven frame 4 on two sides of the magnetron 5 in advance, is inserted into the machine room 3. After the antenna 5a of the magnetron 5 is projected into the oven 2, the inside of the oven frame 4 is visible and the magnetron 5 is attached to the oven frame 4 with set screws 6.

Therefore, the guide plate 7 holds the magnetron 5 so that it can be easily attached to the oven frame 4 during assembly, so the jig b as a pedestal is not required as in the above-mentioned specific example. In addition to shielding the thermal energy from the high voltage transformer 12, the cooling fluid from the intake hole 13 is transferred to the cooling fan 8.
It is designed to guide you to.

[Effect of idea]

As described above, according to the present invention, the oven frame 4 that separates and forms the oven 2 and the machine room 3 is provided in the case body 1, and the oven frame 4 is provided in the case body 1.
In the microwave oven in which the magnetron 5 is mounted on the side wall 4a of the microwave oven, a guide plate 7 which also serves as a mounting jig and has approximately the same length as the width of the machine room 3 is pasted on two sides of the magnetron 5. The magnetron 5 can be attached to a predetermined position without using a jig, and the magnetron 5 can be shielded from heat from the high voltage transformer 12 and the like, and can also serve as a cooling flow guide.

[Brief explanation of the drawing]

Fig. 1 is a sectional view of the machine room of the microwave oven of the present invention, Fig. 2 is a plan view of the same as above, Fig. 3 is a diagram for explaining the operation of the present invention, and Fig. 4 is a diagram of the machine room already proposed. FIG. 2 is a diagram for explaining an assembled state of a magnetron of a microwave oven. DESCRIPTION OF SYMBOLS 1... Case body, 2... Oven, 3... Machine room, 4... Oven frame, 5... Magnetron, 7... Guide plate, 8... Cooling fan, 9...
...Air supply duct, 10...Ventilation duct, 11...Air supply port, 12...High pressure transformer, 13...Intake hole.

Claims (1)

[Scope of utility model registration request] In a microwave oven in which an oven frame is provided inside the case body to separate the oven and a machine room, and a magnetron is attached to the side wall of the oven frame, the width of the magnetron is approximately the same as the width of the machine room on two sides of the magnetron. A microwave oven characterized by having a guide plate attached that also serves as a length mounting jig.