JPH04132303U - heating cooker - Google Patents

Abstract

(57) [Summary] [Purpose] To improve the space for installing the cooling air guide that guides the cooling air from the cooling fan to the magnetron, and to improve the cooling effect of the motor that drives the rotary mounting table. [Structure] A cooling air guide 7 that guides cooling air from a cooling fan 6 to a magnetron 4 is integrally formed by extending a yoke part of the magnetron 4 toward the cooling fan side. Furthermore, a pair of air collection ribs 16 are formed on the mounting base of the motor 11 that drives the rotary mounting base to concentrate the cooling air on the motor shaft, thereby reducing the heat transmitted from the heating chamber to the motor via the motor shaft. Suppressing the temperature rise of the motor 11.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

This invention relates to the cooling structure of a heating cooker that cooks food using high frequency waves, heaters, etc. do.

0002

[Conventional technology]

Utility Model Application Publication No. 62-183392 discloses that The cooker, which has a cooling air guide extending from the magnetron to the cooling fan side, opens. It is shown. However, you will need a working space to install this guide. There were also difficulties in installation workability.

0003 In addition, Japanese Utility Model Application No. 61-23615 discloses a rotating mounting table installed in the heating chamber. In order to suppress the temperature rise of the driving motor, air from the cooling fan is sent to the motor. Disclosed is a cooking device that cools the cooking device. However, when heating with a heater, the heating chamber Heat is transmitted to the motor via the motor drive shaft, and the temperature rise in the motor can be sufficiently suppressed. do not have.

0004

[Problem that the idea aims to solve]

This invention saves the space required for installing the magnetron's cooling air guide. In addition to improving the cooling performance of the motor that drives the rotating mounting table. be.

[0005]

[Means to solve the problem]

The cooker of the present invention has a heating chamber and an electrical compartment adjacent to the heating chamber that stores electrical components. , a magnetron installed in this electrical equipment room that supplies microwaves into the heating chamber, and an upper A cooling fan is provided in the electrical equipment room to cool electrical components. In order to guide the cooling air from the A portion of both is extended to the cooling fan side.

[0006] Furthermore, there is a heating chamber, an electrical equipment room adjacent to this heating room that stores electrical components, and this electrical equipment. A cooling fan is installed in the chamber to cool down the electrical components, and a cooling fan is installed in the heating chamber to increase the temperature inside the heating chamber. A heater heating source that drives a rotating mounting table inside the heating chamber installed outside the bottom wall of the heating chamber. The motor is equipped with a motor and an installation stand for attaching the motor to the bottom wall of the heating chamber. A wind collection rib is formed to guide cooling air to the drive shaft of the motor.

[0007]

[Effect]

The cooling air guide that guides the air from the cooling fan to the magnetron is The work space for attaching the cooling air guide was created by extending the yoke part. This eliminates the need for space and increases the degree of freedom in component placement. Furthermore, a motor that drives the rotary mounting table is also provided. Install a wind collector on the motor installation stand that guides the cooling air from the cooling fan to the motor drive shaft. Since the brake is provided, the amount of heat transmitted to the motor via the motor drive shaft can be reduced.

[0008]

【Example】

1 and 2 show a side view and a plan view of the cooking device of the present invention, and 1 indicates the cooking device exterior; 2 is a heating chamber provided inside the exterior 1 to store food, and 3 is adjacent to the heating chamber and houses electrical components. An electrical equipment room 4 is provided in the electrical equipment room 3 and supplies microwaves to the heating chamber 2. It's Gnetron. 5 is a high voltage transformer that supplies high voltage to magnetron 4; 6 is a high voltage transformer that supplies high voltage to magnetron 4; A cooling fan that cools electrical components such as the magnetron 4 and high voltage transformer 5, 7 is the above The yoke on the antenna 8 side that forms the magnetron 4 is extended to the cooling fan 6 side. The cooling air guide 9 is configured to direct the wind after cooling the magnetron through the punched holes 10. A duct 11 that guides air into the heating chamber 2 is arranged between the bottom wall of the heating chamber 2 and the bottom plate 12. This is a motor that drives the rotating mounting table.

[0009] Figure 3 shows the details of the installation of the motor 11, and 12 is the inside of the heating chamber during oven cooking. Heaters 13 and 14 heat the bottom wall of the heating chamber 2 to raise the ambient temperature. These are a heat insulating material and a heat insulating plate that cover the lower side of the tank 12. 15 attaches the motor 11 mentioned above. The installation stand 15 is made of heat-resistant synthetic resin. In order to concentrate the cooling air on 1a, a V-shaped air collection rib that spreads toward the upstream of the cooling air 16, 16 are formed.

0010 In the above configuration, a part of the swirling wind blown from the cooling fan 6 is Guided by the cooling air guide 7 formed by extending the yoke part of the Gnetron 4, the yoke part The heat sink enters the heat dissipation fin of the magnetron 4 surrounded by the magnetron and cools the magnetron.

[0011] On the other hand, the cooling air cools electrical components such as the high voltage transformer 5, and also cools the bottom of the heating chamber 2. It flows between the wall and the bottom plate 12 and reaches the drive motor 11 of the rotary mounting table. And one The wind blown to the motor 11 by the pair of air collection ribs 16 is transferred to the motor shaft 11a. The heat from the heating chamber 2 that is conducted through the motor shaft 11a is cooled.

0012

[Effect of the idea]

The cooling air guide that guides the cooling air to the magnetron is connected to the magnetron's yoke. Since it is extended and formed into one piece, there is more work space for installing the cooling air guide. In addition to improving thermal conductivity from the magnetron to the cooling air guide, the It can suppress the temperature rise of Gnetron.

[0013] In addition, a cooling plate is attached to the motor shaft on the installation base that fixes the motor that drives the rotating mounting base. Since we have formed a collection rib that concentrates the cooling air, it is sent from the heating chamber via the motor shaft. The heat transmitted to the motor can be reduced, and the temperature rise of the motor can be suppressed.

[Brief explanation of drawings]

FIG. 1 is a side view of the electrical equipment compartment side of the heating cooker of the present invention.

FIG. 2 is a plan view of the electrical equipment compartment side of the cooking device of the present invention.

FIG. 3 is a cross-sectional view of the rotating mounting table drive motor mounting part of the present invention;

[Explanation of symbols]

2 Heating chamber 3 Electrical equipment room 4 Magnetron 6 Cooling fan 11 Motor 12 Heater 15 Installation stand 16 Shufu Rib

Claims (2)

[Scope of utility model registration request] Claim 1: A heating chamber, an electrical equipment room adjacent to the heating room that stores electrical components, a magnetron that is provided in the electrical equipment room and supplies microwaves into the heating chamber, and a magnetron that is provided in the electrical equipment room that stores the electrical components. In order to guide the cooling air from this cooling fan to the magnetron,
A cooking device in which at least a part of the yoke of the magnetron extends toward the cooling fan. 2. A heating chamber, an electrical equipment compartment adjacent to the heating compartment that stores electrical components, a cooling fan provided in the electrical equipment compartment to cool the electrical components, and a heater heating source that increases the temperature inside the heating compartment. and a motor provided outside the bottom wall of the heating chamber to drive a rotary mounting table inside the heating chamber, and an installation stand for attaching this motor to the bottom wall of the heating chamber, and a motor mounted on the installation stand to connect the drive shaft of the motor to the bottom wall of the heating chamber. A heating cooker with air collecting ribs to guide cooling air.