초록 ▼

The hob (1) comprises a support plate (2) which has a treatment area (3) and the cooking vessel (50) has rotary blades (53) connected to an upper magnetic coupling member (54). Below the plate (2) of the hob (1) there is a lower magnetic coupling member (4) rotatably driven by an actuator (6) to mag

The hob (1) comprises a support plate (2) which has a treatment area (3) and the cooking vessel (50) has rotary blades (53) connected to an upper magnetic coupling member (54). Below the plate (2) of the hob (1) there is a lower magnetic coupling member (4) rotatably driven by an actuator (6) to magnetically transmit torque to the upper magnetic coupling member (54) of the vessel (50). The hob (1) includes a lower magnetic element (8) below the plate (2) and the vessel has an upper magnetic element (58), which are at the same predetermined distance from the rotating shafts (E1, E2) of the respective magnetic coupling members. When the vessel (50) is in a predetermined angular position, the magnetic attraction between the lower and upper magnetic elements (8, 58) applies opposition to the rotation of the vessel (50).

대표청구항 ▼

1. A cooking hob (1) with rotary driving means, comprising: a support plate (2) which has a treatment area (3) capable of supporting a cooking vessel (50) provided with rotary blades or paddles (53) connected to an upper magnetic coupling member (54);a lower magnetic coupling member (4) rotatably as

1. A cooking hob (1) with rotary driving means, comprising: a support plate (2) which has a treatment area (3) capable of supporting a cooking vessel (50) provided with rotary blades or paddles (53) connected to an upper magnetic coupling member (54);a lower magnetic coupling member (4) rotatably assembled on a moving support (5) below the support plate (2);a drive actuator (6) operatively connected for rotating said lower magnetic coupling member (4) and magnetically transmitting torque to said upper magnetic coupling member (54) of said cooking vessel (50), anda position change actuator (7) operatively connected to move said moving support (5) between an operative position, in which the lower magnetic coupling member (4) is close enough to the support plate (2) to magnetically transmit said torque to the upper magnetic coupling member (54) when the cooking vessel (50) is located on the treatment area (3), and an inoperative position, in which the lower magnetic coupling member (4) is far enough from the support plate (2) so as to be free from transmitting the torque;wherein at least one lower magnetic element (8) is installed on the moving support (5) below the support plate (2) at a predetermined distance from a lower rotating shaft (E1) of the lower magnetic coupling member (4) and at a constant predetermined angular position about said lower rotating shaft (E1) to create a magnetic attractive force on an upper magnetic element (58) installed in the cooking vessel (50) at said predetermined distance from an upper rotating shaft (E2) of the upper magnetic coupling member (54) when the cooking vessel (50) is located in a predetermined angular position on the treatment area (3) and when the moving support (5) is in said operative position. 2. The cooking hob according to claim 1, wherein a wireless energy emitting element is installed in the moving support (5) to emit a wireless energy supply that can be received by a wireless energy receiving element installed in the cooking vessel (50) for supplying at least one electronic safety control circuit installed in the cooking vessel (50). 3. The cooking hob according to claim 2, wherein said wireless energy emitting element comprises a lower coil (12) supplied by a power supply and arranged in a position below the support plate (2) in which said lower coil (12) is coaxial and adjacent to a corresponding upper coil (56) installed in the cooking vessel (50) when the moving support (5) is in said operative position and the cooking vessel (50) is located in said predetermined angular position on the treatment area (3) to establish a magnetic coupling with said upper coil (56) of the cooking vessel (50), said upper coil (56) acting as said wireless energy receiving element. 4. The cooking hob according to claim 3, wherein a wireless signal receiver (9) is arranged in a position below the support plate (2) suitable for receiving a control signal emitted by a wireless signal emitter (59) installed in the cooking vessel (50) in connection with said electronic safety control circuit when the cooking vessel (50) is located in said predetermined angular position on the treatment area (3), said wireless signal receiver (9) being in connection with an electronic control device configured for allowing, preventing or modifying the operation of said drive actuator (6) as a consequence of said received or not received control signal. 5. The cooking hob according to claim 4, wherein heating means (10) are arranged below the support plate (2) for heating the cooking vessel (50) when it is located on the treatment area (3), and said electronic control device is further configured for allowing, preventing or modifying the operation of said heating means (10) as a consequence of said received or not received control signal. 6. The cooking hob according to claim 5, wherein said heating means (10) comprise an induction heating device (11) in the form of a planar ring arranged adjacent to a lower surface of the support plate (2) in the treatment area (3), said induction heating device (11) having a central opening in which the lower magnetic coupling member (5) is housed when the moving support (5) is in the operative position.