JPS59146186A - Insulator supporting device of high frequency oscillator - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention is preferably applied to thawing equipment for industrial frozen products and the like, and relates to an insulating support device for a high frequency oscillator.

Conventional configuration and its problems Conventionally, the P3R support device d for this type of high-frequency oscillator was sandwiched between the high-frequency oscillator C and the high-frequency oscillator C using a mounting bracket on the mounting plate a, as shown in FIG. The configuration was common.

The material used is a special glass that is relatively sensitive to high frequencies, and a brass embedded fitting θ is generally formed integrally with the mounting portion 2g-''.

However, with this configuration, during high-frequency oscillation, the special glass part and the embedded metal fitting e each generate heat (~, a temperature difference occurs due to the difference in material, high-frequency vibration is also added, and the special glass cracks. There was a problem in that it eventually cracked, making it impossible to maintain electrical insulation.

Purpose of the Invention The present invention solves these conventional problems, reduces the number of parts such as embedded fittings, prevents damage caused by high frequency oscillation, and provides a configuration that maintains insulation of a high frequency oscillator. It is.

Structure of the Invention In order to achieve the above object, the present invention has one end fastened to the main body of a device and the other end fastened to a high frequency oscillator, a recessed part provided in the circumferential direction in the middle, and a round hole that does not pass through the fastened part. Since the insulating support device is formed from an olefin resin containing glass fiber, it is possible to prevent the deterioration of the absolute R characteristic and the decrease in the mechanical strength.

3! Description of Knee Embodiment An embodiment of the present invention will be described below with reference to the accompanying drawings.

In FIG. 2 showing a cross section of the high-frequency thawing machine, an outer casing 1 has a thawing chamber 3 for storing frozen products 2, and is covered with a lower fixed electrode 4 and an insulating plate 6, and is arranged vertically with a cold air guide 6. The frozen product 2 is sandwiched between the moving movable electrode 7 based on the operation of the elevator 8.

A high frequency oscillator 11 is connected to a high voltage power supply 9 by a feed line 10.
The high frequency generated by this is supplied to the lower fixed electrode 4 through the power supply line 12, and thawing proceeds.

Cold air ducts 13, 14 to improve thawing quality. Condenser 15. Combre Noser 16. Cooling evaporator 17. A cooling unit consisting of a blower fan 18 and the like is arranged to circulate cold air to the thawing chamber 3. The cooling evaporator 17 is supported by a top plate 19 and a wind barrel top plate 20. The frozen product 2 is placed on -F of the placing plate 21.

Next, the oscillation coil 22 inside the high-frequency oscillation section 11 is supported by an insulating support device 23 on a side plate 24, and is electrically insulated from the high voltage flowing through the oscillation coil 22.

Next, the insulating support device 23 for the high frequency oscillator will be explained in detail. J shown in Figure 3: Sea urchin, insulation support device 2
3 is fastened to the mounting plate 24 with a mounting screw 26, and on the other hand, a mounting leg 26 welded to the oscillation coil 22 is connected to the mounting screw 2.
6, and electrically insulates between the mounting plate 24 on the ground side and the mounting foot 26 on the high voltage load side.

The insulating support device 23 is provided with a plurality of four portions 27 in the circumferential direction to increase the creepage distance and enhance the insulation effect. It's Tong.
Insulating support device 23 illusion 2, its material is an olefin resin containing glass fiber to minimize the generation of carbon, and at the time of insulation breakdown, a small amount of carbon combines with oxygen in the air 1~, and gasification 1~ This prevents carbon from remaining on the surface, which can cause dielectric breakdown, and helps maintain insulation for a long time. Olefin-based resins containing thin glass fibers have characteristics such as low water content and water absorption, and low g electric constant ε and R electric dissipation tangent tan δ 6 base S ゛, so there is little dielectric heat generation, and mechanical There is little deterioration in physical strength, and it can withstand the support of the oscillation coil 22 and the like, and there is no possibility of cracks or cracks.

Furthermore, by increasing the height L dimension of the insulating support device 23 in FIG. 3, the dielectric strength voltage can be increased, and by increasing the number of circumferential recesses 27, the dielectric strength voltage can be similarly improved.

Effects of the Invention As described above, according to the present invention, it is possible to reliably insulate high-voltage load electrical components such as an oscillation coil in a high-frequency oscillator from the mounting plate on the ground side, thereby preventing self-heating caused by high frequencies. The high-frequency oscillator can be operated safely for a long period of time because it minimizes the occurrence of cracks and dielectric breakdown due to discharge phenomena, and also minimizes the decrease in mechanical strength.

[Brief explanation of the drawing]

FIG. 1 is a partial cross-sectional view showing the structure of a conventional insulating support device for a high-frequency oscillator, and FIG. 2 is a diagram showing a high-frequency thawing machine equipped with the insulating support device for a high-frequency oscillator in the real 6-beam Z-twisting according to the present invention. The schematic cross-sectional view, FIG. 3, is a partial cross-section showing the structure of the insulating support device of the high-frequency oscillator. DESCRIPTION OF SYMBOLS 11... High frequency oscillation part, 23... Insulating support device, 24... Mounting plate. Name of agent: Patent attorney Toshio Nakao and 1 other person No. 1
Figure 2

Claims (1)

[Claims] An insulating support device for a high frequency oscillator, which has one end fastened to the main body of the device and the other end fastened to the high frequency oscillator, and has four parts in between, and is made of olein-based resin containing glass fiber.