A heater of the present invention includes jointed heat generating resistors having a positive temperature characteristic of resistance and provided between a first conductive element and a second conductive element on a substrate in a longitudinal direction of the substrate, and a plurality of heating blocks provided in the longitudinal direction, each of which is a set of the first conductive element, the second conductive element, and the heat generating resistor, and power supplied to at least one of the plurality of heating blocks can be controlled independent of other heating blocks.

Provided herein is a heater and a heating pool. The heater comprises a heating core that includes a first surface and a second surface arranged on the opposite side of the heating core. A first insulating housing is placed on the first surface and forms a first heat insulating chamber together with the first surface. The second insulating housing is placed on the second surface and forms a second heat insulating chamber together with the second surface, wherein the first heat insulating chamber and the second heat insulating chamber communicate with each other. The heater of the utility model has good insulation performance and can prevent the occurrence of electrical leakage, so that the safety performance of the heater is improved.

A needle-shaped heating element includes: an electrically conductive outer tube; and a heating circuit and a temperature measurement circuit arranged in the outer tube. One electrode of the heating circuit and one electrode of the temperature measurement circuit are both electrically connected to the outer tube. In an embodiment, the heating circuit includes a metal positive temperature coefficient (PTC) material.

A vaporizer device includes a housing including an air inlet, a heating element within the housing and a heat exchanger. The heating element includes a nonlinear positive temperature coefficient of resistance material. The heat exchanger is thermally coupled to the heating element and arranged to receive airflow from the air inlet. The heat exchanger is configured to transfer heat between the heating element and the airflow to produce a heated airflow. The heated airflow exiting the heat exchanger is configured to vaporize a vaporizable material. Related apparatus, systems, techniques and articles are also described.

A heater includes an aluminum nitride base having equal to or less than 1% impurities, particularly one embodiment having none of polybrominated biphenyl, polybrominated diphenyl ether, hexabromocyclododecane, polyvinyl chloride, chlorinated paraffin, phthalate, cadmium, hexavalent chromium, lead, and mercury. At least one resistive trace of silver and palladium overlies the base as does a conductor of silver and platinum or palladium that electrically connects to the resistive trace to apply an external voltage to the resistive trace for heating thereof. At least four, but optionally five, layers of glass overlie the resistive trace and part of the conductor. A first two consecutive layers of the glass layers define a first glass having a solid content of more than 65% and a viscosity of 100 Pa.Math.s or less. The following two or three consecutive layers of the five layers define a second glass dissimilar to the first.

A heating element includes a first bus bar disposed to receive current from a power source, and a second bus bar non-adjacent to the first bus bar. The heating element further includes a polymer ink section extending between the first and second bus bars, and the section includes a plurality of PTC polymer inks each different from one another. The second bus bar is electrically connected to the first bus bar via the polymer ink section.

Provided is a massage module having a heating function to transfer heat to the human body through massage performed by applying vibrations or pressure to a body part of a user. The massage module includes a massage unit which applies pressure and heat to the body of the user, the massage unit including: a support shaft member which is fixedly installed on a unit bracket and includes a heat conductive material; a heat generation member for transferring heat to the support shaft member; a cushion member which has an opening formed in the center thereof such that the support shaft member is inserted in the opening, is rotatably installed on the outer surface of the support shaft member, and applies pressure to the body of the user; an insert member which is inserted in the inner circumferential surface of the opening of the cushion member, has a ring shape, and is formed of a heat conductive metal material; and a reinforcing washer which is formed in a ring shape, is inserted in the support shaft member, and is in close contact with one side surface or both side surfaces of the cushion member in the axial direction. so as to resist a torsion stress applied to the cushion member.

Embodiments of the invention provide a self-regulating heating cable. The cable includes a primary jacket including a first low-smoke, zero halogen material. The cable also includes a braid surrounding the primary jacket. The cable also includes a final jacket surrounding the braid and comprising a second low-smoke, zero halogen material. The final jacket is formed to the braid during an extrusion process in order to create a mated connection between the final jacket and the braid.

An electric heating device may include a heating volume, at least two heating modules arranged in the heating volume, an electrically conductive control housing, a power electronics, and an electrically conductive conductor arrangement. The control housing may delimit a control volume and may have a bottom that delimits the heating volume. The conductor arrangement may include an intermediate part electrically connected to the bottom and to an electrically conductive outer shell of each of the heating modules. The heating modules may each extend into the control volume through an associated passage opening of the bottom. The outer shell of each heating module may extend through an associated arrangement opening of the intermediate part. The conductor arrangement may include a cover covering the intermediate part. A closure bend of the intermediate part may extend through a cover opening of the cover and engage with the cover to form a form closure.

A heating blanket that includes: a first heating segment comprising a first heating section and a first sensing section, the first heating section comprises one or more heating elements and the first sensing section comprises one or more sensing elements; a second heating segment comprising a second heating section, the second heating section comprises one or more heating elements; the first sensing section overlaps the second heating section and the one or more sensing elements in the first sensing section monitor or determine an amount of heat generated by the one or more heating elements in the second heating section.