A flash double-temperature linkage temperature controller has an arrangement that enables contacts of two movable contact sheet sets and two static contact sheet sets to sequentially operate at different temperatures, and a desired fixed temperature difference is obtained. The two movable contact sheet sets are respectively connected to the two static contact sheet sets to control two electric heating tubes, so that the effect whereby two electric heating tubes (high power) work during water heating and a single electric heating tube (low power) works during heat preservation heating is achieved, and the working frequency of the high-power contact sets is greatly reduced.

An appliance (10) to heat a liquid, the appliance (10) including: a vessel (12) to receive the liquid to be heated, the vessel (12) having a generally central upright longitudinal axis (24), a bottom wall (26), and a side wall (28) extending upwardly from the bottom wall (26), with the bottom wall (26) and side wall (28) at least partly enclosing a chamber (40) within which the liquid is heated, with the chamber (40) having an upper region (42) axially spaced from the bottom wall (26), and a lower region (44) located between the bottom wall (26) and the upper region (42); a heating element (50) located within the chamber (40) for relative movement therewithin, with the element (50) at least partly formed of ferromagnetic material; a heater base (14) to be positioned relative to the bottom wall (26) of the vessel (12), the heater base (14) including at least a portion of an induction coil (18); connections to deliver an alternating current to the induction coil (18) so as to deliver a magnetic field to the lower region (44); and wherein the element (50) is movable relative to the coil (18) between an operative position at which the element (50) is located within the lower region (44) so as to be energised by the magnetic field to cause heating of the element (50) so that heat generated by the element (50) can be delivered to the liquid via conduction, and an inoperative position at which the element (50) is located in the upper region (42) so as to no longer place an operative load on the induction coil (18).

A thermally sensitive control for controlling a power supply circuit to a heater in a liquid heating appliance is provided. The control includes a cordless connector part arranged to mate with a base connector part, first and second moveable electrical contacts mounted on first and second moveable members, and first and second thermally sensitive actuators. The control further includes a latch arm extending across the control between the moveable members, the latch arm including a first latch for the first moveable member and a second latch for the second moveable member, and a release member including a release part and a plunger, wherein the release member is resiliently biased to bring the release part into contact with the latch arm but the resilient bias is overcome when the plunger bears against a surface of the base connector part.

Disclosed is a flash double-temperature linkage temperature controller, comprising a mounting plate (1), and a mounting column (2) provided on the mounting plate, wherein a temperature-sensing bimetal sheet (3), a ceramic ring I (4), a static contact sheet set I (5), a ceramic ring II (6), a movable contact sheet set I (7), a ceramic ring III (8), a static contact sheet set II (9), a ceramic ring IV (10), a movable contact sheet set II (11), and a ceramic ring V (12) are sequentially mounted to the mounting column from top to bottom, and a linkage rod (15) is provided between the movable contact sheet set I and the movable contact sheet set II. According to this technical solution, the traditional single circuit is changed into two circuits; the two movable contact sheet sets and the two static contact sheet sets are connected via the linkage rod and a ceramic column II; contacts of the two movable contact sheet sets and the two static contact sheet sets sequentially operate at different temperatures due to the design of the height of the ceramic column II; and a desired fixed temperature difference is obtained. The two movable contact sheet sets are respectively connected to the two static contact sheet sets to control two electric heating tubes, so that the effect whereby two electric heating tubes (high power) work during water heating and a single electric heating tube (low power) works during hear preservation heating is achieved, and the working frequency of the high-power contact sets is greatly reduced.

A heating system component for a heating system for heating a fluid medium is provided. The heating system component includes: a carrier unit comprising a wet side, wherein said wet side corresponds to a surface of said carrier unit configured to be in contact with said fluid medium; and a heating unit. The heating unit may be coupled to the carrier unit via soldering, laser welding, gluing, ultrasonic welding, and/or friction welding. The carrier unit may comprise aluminum.

A thermally sensitive control for controlling a power supply circuit to a heater in a liquid heating appliance is provided. The control includes a cordless connector part arranged to mate with a base connector part, first and second moveable electrical contacts mounted on first and second moveable members, and first and second thermally sensitive actuators. The control further includes a latch arm extending across the control between the moveable members, the latch arm including a first latch for the first moveable member and a second latch for the second moveable member, and a release member including a release part and a plunger, wherein the release member is resiliently biased to bring the release part into contact with the latch arm but the resilient bias is overcome when the plunger bears against a surface of the base connector part.

An appliance including: a vessel to receive a liquid, the vessel having a longitudinal axis, a bottom wall, and a side wall at least partly enclosing a chamber within which the liquid is heated, the chamber having an upper region axially spaced from the bottom wall, and a lower region located between the bottom wall and the upper region; a heating element within the chamber; a heater base including at least a portion of an induction coil; connections to deliver an alternating current to the induction coil to deliver a magnetic field to the lower region; the element being movable relative to the coil between an operative position at which the element is located within the lower region to be energised by the magnetic field to cause heating of the element, and an inoperative position at which the element is located in the upper region to not energize the element.