High frequency heater and cooling system for magnetron driving power in said device
A technology of high-frequency heating device and driving power supply, which is applied in the direction of electric heating device, microwave heating, electric/magnetic/electromagnetic heating, etc.
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no. 1 example
[0047] figure 1 It is a structural diagram of a cooling system for a magnetron driving power supply of the present invention. The adopted structure is that the cooling fan 18 is placed in the horizontal direction of the axial direction S and the magnetron drive power supply, that is, at a position intersecting the phenolic cardboard 17 at an acute angle (angle φ), and is closed with the opening at one end of the air duct 21 . The air duct 21 is configured to close the magnetron driving power supply 12 from the longitudinal direction and its upper part, and two air duct opening portions are provided in the horizontal direction with respect to the phenolic cardboard 17 . The air from the cooling fan enters the magnetron driving power supply through an opening of the air duct blocked with the cooling fan, flows into the magnetron driving power supply, and flows out through the other opening of the air duct 21 .
[0048] figure 2 The air flow from the cooling fan with the coo...
no. 2 example
[0054] Figure 11 is a perspective view of the main part of the inverter power supply of the high-frequency heating device according to the second embodiment of the present invention. Figure 12 It is a sectional view showing the machine room of the inverter power supply of the high-frequency heating device.
[0055] exist Figure 11 In , reference numeral 39 denotes an inverter power supply. Reference numerals 40 to 42 denote components mounted in the inverter power supply 39 . More specifically, reference numeral 40 denotes a semiconductor rectifying element that rectifies a commercial power supply. Reference numeral 41 denotes a semiconductor switching element that changes the rectified power supply into a high-frequency power supply. Reference numeral 42 denotes a high-voltage transformer that converts a high-frequency power supply to a high voltage. Reference numeral 43 denotes a temperature sensor “a” that detects the temperature of the semiconductor rectifying elem...
no. 3 example
[0061] Figure 13 is a perspective view showing a main part of an inverter power supply of a high-frequency heating device according to a third embodiment of the present invention. exist Figure 13 Among them, reference numeral 51 represents a prompting device composed of a buzzer, which is mounted on the same board as the control device 47 . The prompting device 51 is the only difference from the structure of the second embodiment. The same reference numerals as in the second embodiment denote the same elements, and thus explanations are omitted.
[0062] Similar to the second embodiment, the control device 47 obtains the temperatures of the semiconductor rectifying element 40 and the semiconductor switching element 41 through the temperature sensor "a" 43 and the temperature sensors "b" 44 and "c" 45 . In a case where an abnormal temperature rise is detected, the operation of the high-frequency heating device is terminated. At the same time, the prompting device 51 notifie...
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