Vacuum microwave thawing machine

Abstract

In a vacuum microwave thawing machine, ensure that the current sensor is not calibrated unnecessarily. [Solution] The inverter 34B of the micro-generator 34 adjusts the output of the magnetron 34A by controlling the output current, and has a current sensor 84 for detecting the output current. When a first start operation is performed on the operation unit 70, which is an operation to start the vacuum microwave thawing machine 10, the normal mode start unit 122 starts the machine in a first mode (normal mode) for controlling the thawing of the object to be thawed. When a second start operation, which is an operation different from the first start operation, is performed on the operation unit 70, the factory setting mode start unit 124 starts the machine in a second mode (factory setting mode) that allows calibration of the current sensor 84.

Claims

1. A vacuum microwave thawing machine, The vacuum microwave thawing machine comprises a thawing chamber for containing the object to be thawed, a vacuum pump for reducing the pressure inside the thawing chamber, a microwave generator for generating microwaves to irradiate the thawing chamber, an operating unit for operating the vacuum microwave thawing machine, and a control unit for controlling the vacuum microwave thawing machine. The microwave generator comprises a magnetron and an inverter that adjusts the output of the magnetron. The inverter adjusts the output of the magnetron by controlling the output current, and has a current sensor for detecting the output current. The control device is A vacuum microwave thawing machine characterized in that, when a first start operation is performed on the control unit, which is an operation to start the vacuum microwave thawing machine, it is started in a first mode for controlling the thawing of the object to be thawed, and when a second start operation, which is an operation different from the first start operation, is performed on the control unit, it is started in a second mode capable of calibrating the current sensor.

2. The operation unit has a display device that displays screens corresponding to the first mode and the second mode, The vacuum microwave thawing machine according to claim 1, wherein the current sensor calibration screen, which is a screen for calibrating the current sensor in the second mode, is provided with a calibration value input unit for inputting the calibration value of the current sensor and an inverter operation unit for operating and stopping the inverter.

3. The operating unit has a start switch for starting the vacuum microwave thawing machine. The first startup operation is the operation in which the startup switch is pressed when the vacuum microwave thawing machine is energized. The vacuum microwave thawing machine according to claim 1 or claim 2, wherein the second startup operation is an operation in which the vacuum microwave thawing machine is energized while the startup switch is pressed.

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