A retaining body for heating elements, in particular oval and round heating elements, having an outer part assembly and an inner part assembly which is arranged inside the outer part assembly and forms an elastic connection with the outer part assembly under mechanical tension, wherein the outer part assembly and/or the inner part assembly has/have a plurality of receptacles which are arranged distributed in the circumferential direction and in each of which a heating element is arranged, and the outer part assembly and the inner part assembly each comprise a polygon profile with polygon corners and polygon sides which connect the polygon corners. The invention is characterized in that the inner part assembly and the outer part assembly can be rotated relative to one another and are dimensioned in such a way that the polygon profiles are elastically deformed by a relative rotation between the inner part assembly and the outer part assembly in such a way that, in the mounted state, a press fit is formed in the region of the heating elements by the induced mechanical tension.

A temperature control equipment, adapted to control the temperature of a docking station for a UAV, wherein a cover of the docking station includes a first and a second vents. The temperature control equipment includes a first and a second temperature control devices. The first temperature control device includes a first and a second airflow openings, and the second temperature control device includes a third and a fourth airflow openings. The first, second, third, and fourth airflow openings, and the first and second vents form a first airflow path; or the first and second airflow openings, the first vent, and a third vent of the cover form a second airflow path; or the first, second, third, and fourth airflow openings, the first, second, and third vents, a fourth vent of the cover form a third airflow path. A heater is located on the first, second or third airflow path.

A cleansing and sanitizing water dispensing device and related methods are described herein that includes: a heating mechanism, wherein the heating mechanism heats water to a predetermined temperature, wherein the predetermined temperature is above 130° F. and up to the boiling temperature of the water, and wherein the temperature of the water can sanitize a surface, a cloth or another item; a liquid reservoir coupled to the heating mechanism, wherein the liquid reservoir is designed to hold and store water; a dispensing mechanism coupled to the liquid reservoir; and an integrated safety device, wherein the safety device includes a locking mechanism and wherein the locking mechanism is operatively coupled to the heating mechanism, the dispensing mechanism, or a combination thereof. In some embodiments, a cleansing and sanitizing water dispensing device includes an integrated safety device, wherein the safety device includes an integrated spill tray, wherein the device or the heating mechanism will not operate unless the integrated spill tray is engaged and pulled out, so that it extends away from the dispensing device.

A combination cooling and heating fan structure includes an electronic device for controlling a driving device to drive a fan blade assembly to rotate within a first rotational speed range and thereby cause cold convection when the driving device is started alone. The electronic device includes a limiting module for limiting the driving device to rotate within a second rotational speed range, which is smaller than the first rotational speed range, when the driving device and a heating device are started at the same time. That is, when the driving device and the heating device are started simultaneously, the limiting module limits the driving device to rotate within the second rotational speed range for the fan blade assembly to blow hot air through an indoor environment and cause heat convection, which increases the temperature of the indoor environment while preventing quick loss of thermal energy during the heat convection.

A heater for heating air includes an inlet, an outlet, and an air duct between the inlet and the outlet. A fan and a heating element are positioned in the air duct. A first temperature sensor is positioned at or near the inlet and configured to measure a first temperature of ambient air at the inlet. A second temperature sensor in positioned in the air duct and configured to measure a second temperature of heated air flowing through the air duct. The heater is configured to control heating power and fan speed based on measurements taken by the first and second temperature sensors.

The present invention relates to a heating device (10), in particular to an electric heating device for a motor vehicle, having a heat exchanger housing (12), heat exchanger core (14) which absorbs heat at a heat input face, and a printed circuit board (20) having electronic components (16, 18) for controlling the heating device (10), wherein the printed circuit board (20) is arranged on an outer side (22) of the heat exchanger housing (12), wherein a temperature sensor (24) is arranged on a side (26) of the printed circuit board (20) which faces the outer side (22) of the heat exchanger housing (12), wherein connecting means (28) are provided which connect the temperature sensor (24) in a heat conducting fashion to the outer side (22) of the heat exchanger housing (12), and wherein the heat input face of the heat exchanger core (14) is connected in a heat-conducting fashion to the heat exchanger housing (12), with the result that a continuous short heat bridge, running through the interior of the heat exchanger housing (12), to the connecting means (28) is generated.

An electric heating device for emitting a heated air flow, in particular for a sanitary room or washroom in a rail-borne vehicle, includes an air duct, a fan generating the air flow, a heating element heating the air flow and a first over-temperature switch. The first over-temperature switch can reversibly switch off the heating element when a first over-temperature is exceeded. A second over-temperature switch can irreversibly switch off the heating element when a second over-temperature is exceeded. The second over-temperature switch is disposed in a recess, depression or opening formed in the air duct. The second over-temperature switch has a disconnect or isolating switch to be thermally triggered for switching off the heating element. The thermally triggered disconnect or isolating switch can be triggered by a glass sphere or bead that breaks when the second over-temperature is exceeded.

A control system for controlling a gas powered appliance includes a hot surface igniter, an igniter relay, and an integrity detection circuit. The integrity detection circuit is configured to be coupled to a power source, the igniter relay, and the hot surface igniter to produce an output indicative of the integrity of the hot surface igniter and the igniter relay. The integrity detection circuit is configured to output a first voltage when the igniter relay is closed and output a second voltage different from the first voltage when the hot surface igniter is in a non-short circuit failure condition.

A heater assembly having a lower tank that is provided with an inlet and an outlet and has a first space, a heater case that covers the first space, has at least one heat transfer pocket that is situated in the first space, and has a second space, at least one heating module that is inserted into the heat transfer pocket such that a terminal thereof is situated in the second space, a bus bar block which is accommodated in the second space and to which the terminal is connected, and a PCB module that controls the heating module is provided. The bus bar block includes a bus bar that contacts the terminal, and a first bus bar plate which has a terminal through-hole, through which the terminal passes, and in which the bus bar is arranged.

A system and apparatus for precision temperature control of thermal bead baths used in biological laboratories to heat biological samples is disclosed. The system has an insulated outer shell and an inner shell sealed together to form a recirculation pathway. The inner shell has an air extraction port opening into the recirculation pathway and at least one air injection port opening into the recirculation pathway. A fan is in the recirculation pathway and is positioned to draw air through the air extraction port. At least one thermal sensor is connected to a control and is disposed in close proximity to one of the air injection ports. Beads used in thermal bead baths are placed in a mesh basket inside the inner shell. The fan draws air from the inner shell through the beads and into the recirculation pathway, where the air is heated by a thermal element. The air flows past the thermal element and through the air injection ports back into the inner shell.