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公开(公告)号：EP3852495A1
公开(公告)日：2021-07-21
申请号：EP19859728.8
申请日：2019-09-11
发明人： FUKUI, Mikio , UNO, Takashi , OGASAWARA, Fumitaka , IWATA, Motoyoshi , TAKANO, Shinji , HOSOKAWA, Daisuke , HIRAMOTO, Masayoshi
摘要： A microwave heating device includes the following components: a heating chamber for accommodating a heating target object, a microwave generator that generates a microwave, and a coaxial connector. The coaxial connector includes a center conductor, an insulator, and an external conductor. The center conductor is connected to the output terminal of the microwave generator. The coaxial connector includes an air gap between the center conductor and the insulator. This aspect can reduce the occurrence of cracking of the soldered joint between the microwave generator and the coaxial connector.
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公开(公告)号：EP3849278A1
公开(公告)日：2021-07-14
申请号：EP19857088.9
申请日：2019-09-05
发明人： TAKANO, Shinji , HIRAMOTO, Masayoshi , OGASAWARA, Fumitaka , IWATA, Motoyoshi , UNO, Takashi , FUKUI, Mikio , HOSOKAWA, Daisuke
IPC分类号： H05B6/68
摘要： An RF energy radiation device includes a cavity in which a heating target object is to be placed, an RF signal generation unit, an RF amplifier, a radiation element, a temperature sensor, and a controller. The RF signal generation unit oscillates an RF signal. The RF amplifier amplifies the RF signal and provides RF energy. The radiation element radiates the RF energy into the cavity. The temperature sensor is disposed in the vicinity of the RF amplifier. The controller controls the RF amplifier so that the RF amplifier adjusts the RF energy output in accordance with the temperature detected by the temperature sensor and a plurality of threshold levels. This aspect can improve the reliability of the device.
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公开(公告)号：EP4395461A1
公开(公告)日：2024-07-03
申请号：EP22861235.4
申请日：2022-08-18
发明人： TAKANO, Shinji , UNO, Takashi
CPC分类号： H05B6/68 , H05B6/64 , H05B6/686 , H05B6/645 , H05B6/6447
摘要： In an RF energy radiation device, a controller controls both an oscillator and a power amplifier to set an operation mode to either a first control mode or a second control mode, in accordance with reflected-wave power that returns from a radiation element and is detected by a detector. In the first control mode, the oscillator oscillates a pulsed RF signal having a first pulse width and a first pulse period. In the first control mode, a protection circuit does not shut off traveling-wave power. In the second control mode, the oscillator oscillates a pulsed RF signal having both a second pulse width different from the first pulse width and a second pulse period different from the first pulse period. Alternatively, the oscillator continuously oscillates an RF signal. In the second control mode, the protection circuit shuts off the traveling-wave power when the reflected-wave power exceeds a predetermined threshold.
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公开(公告)号：EP4369863A2
公开(公告)日：2024-05-15
申请号：EP24164566.2
申请日：2019-07-25
发明人： UNO, Takashi , OGASAWARA, Fumitaka , IWATA, Motoyoshi , TAKANO, Shinji , FUKUI, Mikio , HOSOKAWA, Daisuke , HIRAMOTO, Masayoshi
IPC分类号： H05B6/70
摘要： A high-frequency heating apparatus includes: a heating chamber for accommodating a load; a microwave source; at least one radiator; a temperature detector; and a controller. The microwave source generates a microwave and adjusts the frequency and output of the microwave. The at least one radiator radiates a microwave into the heating chamber. The temperature detector detects the temperature in the heating chamber. The controller causes the microwave source to adjust the output of the microwave based on the temperature profile that defines the temperature change in the load, and the temperature in the heating chamber. According to this aspect, food can be heated in accordance with the temperature profile appropriate for the cooking recipe, thereby ensuring the quality of cooked food.
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公开(公告)号：EP4243572A2
公开(公告)日：2023-09-13
申请号：EP23182475.6
申请日：2019-09-05
发明人： TAKANO, Shinji , HIRAMOTO, Masayoshi , OGASAWARA, Fumitaka , IWATA, Motoyoshi , UNO, Takashi , FUKUI, Mikio , HOSOKAWA, Daisuke
IPC分类号： H05B6/66
摘要： An RF energy radiation device includes a cavity in which a heating target object is to be placed, an RF signal generation unit, an RF amplifier, a radiation element, a temperature sensor, and a controller. The RF signal generation unit oscillates an RF signal. The RF amplifier amplifies the RF signal and provides RF energy. The radiation element radiates the RF energy into the cavity. The temperature sensor is disposed in the vicinity of the RF amplifier. The controller controls the RF amplifier so that the RF amplifier adjusts the RF energy output in accordance with the temperature detected by the temperature sensor and a plurality of threshold levels. This aspect can improve the reliability of the device.
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公开(公告)号：EP4369863A3
公开(公告)日：2024-08-07
申请号：EP24164566.2
申请日：2019-07-25
发明人： UNO, Takashi , OGASAWARA, Fumitaka , IWATA, Motoyoshi , TAKANO, Shinji , FUKUI, Mikio , HOSOKAWA, Daisuke , HIRAMOTO, Masayoshi
摘要： A high-frequency heating apparatus includes: a heating chamber for accommodating a load; a microwave source; at least one radiator; a temperature detector; and a controller. The microwave source generates a microwave and adjusts the frequency and output of the microwave. The at least one radiator radiates a microwave into the heating chamber. The temperature detector detects the temperature in the heating chamber. The controller causes the microwave source to adjust the output of the microwave based on the temperature profile that defines the temperature change in the load, and the temperature in the heating chamber. According to this aspect, food can be heated in accordance with the temperature profile appropriate for the cooking recipe, thereby ensuring the quality of cooked food.
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公开(公告)号：EP4243572A3
公开(公告)日：2023-11-08
申请号：EP23182475.6
申请日：2019-09-05
发明人： TAKANO, Shinji , HIRAMOTO, Masayoshi , OGASAWARA, Fumitaka , IWATA, Motoyoshi , UNO, Takashi , FUKUI, Mikio , HOSOKAWA, Daisuke
摘要： An RF energy radiation device includes a cavity in which a heating target object is to be placed, an RF signal generation unit, an RF amplifier, a radiation element, a temperature sensor, and a controller. The RF signal generation unit oscillates an RF signal. The RF amplifier amplifies the RF signal and provides RF energy. The radiation element radiates the RF energy into the cavity. The temperature sensor is disposed in the vicinity of the RF amplifier. The controller controls the RF amplifier so that the RF amplifier adjusts the RF energy output in accordance with the temperature detected by the temperature sensor and a plurality of threshold levels. This aspect can improve the reliability of the device.
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公开(公告)号：EP3832211A1
公开(公告)日：2021-06-09
申请号：EP19843424.3
申请日：2019-07-25
发明人： UNO, Takashi , OGASAWARA, Fumitaka , IWATA, Motoyoshi , TAKANO, Shinji , FUKUI, Mikio , HOSOKAWA, Daisuke , HIRAMOTO, Masayoshi
摘要： A high-frequency heating apparatus includes: a heating chamber for accommodating a load; a microwave source; at least one radiator; a temperature detector; and a controller. The microwave source generates a microwave and adjusts the frequency and output of the microwave. The at least one radiator radiates a microwave into the heating chamber. The temperature detector detects the temperature in the heating chamber. The controller causes the microwave source to adjust the output of the microwave based on the temperature profile that defines the temperature change in the load, and the temperature in the heating chamber. According to this aspect, food can be heated in accordance with the temperature profile appropriate for the cooking recipe, thereby ensuring the quality of cooked food.
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