摘要:
A soft and flexible heater utilizes electrically conductive threads or fibers as heating media. The conductive fibers are encapsulated by negative temperature coefficient (NTC) material, forming temperature sensing heating cables. One or more heating cables can be formed into heaters of various configurations including tapes, sleeves or sheets providing simultaneous heat radiation and local overheat protection. Such heaters may be connected in different combinations, in parallel or in series. The heater may contain continuous positive temperature coefficient (PTC) temperature sensors to precisely control the temperature in the heater. Such temperature sensors can be made of electrically conductive fibers, metal wires or fiber optical filaments. When required by the heater design, the electrically conductive threads/fibers may have a polymer base, which acts as a Thermal-Cut-Off (TCO) at predetermined temperatures. Electrically conductive fibers comprised of such polymer base can melt between 110° C. and 350° C. thereby terminating electrical continuity in the heater.
摘要:
A method is provided for accelerating the curing of an adhesive at a bondline while bonding structures using a fabric heater. The method comprises applying an electrically conductive fabric heater between structures to be bonded to which a layer of adhesives is applied to the bonding surfaces of the structures. Once the adhesive layers and fabric heater are applied to the bondline, pressure is applied and the heater is energized to produce heat uniformly throughout the bondline at the curing temperature of the adhesive so that the adhesive is evenly or symmetrically cured. After curing the adhesive, the heater remains sandwiched at the bondline to act as a reinforcing fabric.
摘要:
A heater device, usable in particular for inner shoes of sports footwear, comprising a conducting fabric of a known type, which is embedded in the inner shoe advantageously substantially at the forefoot region. The fabric is connected, at its opposite ends, to two or more conductors, which are associated with the inner shoe and are connected, at their opposite ends, to connections to an external source.
摘要:
Personal warming systems and apparatuses for use in hospitals and other settings. In one embodiment, a heating mattress or pad for warming a patient during a hospital procedure can include a heating element positioned between a first foam portion and a second foam portion. The heating element and the foam portions can be at least partially enclosed in a fluid-resistant cover. The heating element can be operably connected to a control unit that allows an operator to select between a plurality of temperature options for the heating pad. In another embodiment, the heating pad can include one or more radiolucent, or at least generally radiolucent, features that will not appreciably obscure x-ray images taken of a patient positioned on the heating pad. In one aspect of this embodiment, the radiolucent features can include one or more of a carbon-based heating element, an optical temperature sensing device, and/or a thermally responsive state-changing device.
摘要:
The invention relates to a laminated fabric heater element, heater and a process for manufacturing the heater element and heater. The heater comprises an electrically conductive fabric layer attached to bus bars, is sandwiched between two thermoplastic films forming a heater assembly. In the process making the heater element or heater, the layers of the heater assembly by consolidating the layers of films and fabric into a single sheet heater without the use of adhesive resins. The heater can be made of variable geometry, electrical supply voltage and power, and can withstand more mechanical, chemical, ultraviolet radiation and other environmental stresses than prior art heaters.
摘要:
A soft and flexible heater utilizes electrically conductive threads or fibers as heating media. The conductive fibers are encapsulated by negative temperature coefficient (NTC) material, forming temperature sensing heating cables. One or more heating cables can be formed into heaters of various configurations including tapes, sleeves or sheets providing simultaneous heat radiation and local overheat protection. Such heaters may be connected in different combinations, in parallel or in series. The heater may contain continuous positive temperature coefficient (PTC) temperature sensors to precisely control the temperature in the heater. Such temperature sensors can be made of electrically conductive fibers, metal wires or fiber optical filaments. When required by the heater design, the electrically conductive threads/fibers may have a polymer base, which acts as a Thermal-Cut-Off (TCO) at predetermined temperatures. Electrically conductive fibers comprised of such polymer base can melt between 110null C. and 350null C. thereby terminating electrical continuity in the heater.
摘要:
Electric resistance heating/warming composite fabric articles have a fabric layer having a first surface and an opposite, second surface, and an electric resistance heating/warming element in the form of a conductive yarn mounted upon first surface of the fabric layer, e.g. in embroidery stitching, and adapted to generate heating/warming when connected to a power source. A barrier layer may be positioned, for example, at least adjacent to the first or second surface of the fabric layer. Methods of forming electric resistance heating/warming composite fabric articles are also described.
摘要:
Electric resistance heating/warming composite fabric articles have a fabric layer having a first surface and an opposite, second surface, and an electric resistance heating/warming element in the form of a conductive yarn mounted upon first surface of the fabric layer, e.g. in embroidery stitching, and adapted to generate heating/warming when connected to a power source. A barrier layer may be positioned, for example, at least adjacent to the first or second surface of the fabric layer. Methods of forming electric resistance heating/warming composite fabric articles are also described.
摘要:
An electrically activated hot-melt adhesive tape for adhesively joining objects such as adjacent sections of carpet. The tape has a base which is typically paper, and an electrically conductive ink-like material is sprayed or printed on the base to form a thin central heating section, and thicker and hence lower-resistance conductive strips extending along opposite edges of the heating section. Scrim supporting beads of hot-melt adhesive is secured over the heating section. Alternatively, the heating section and conductive strips, which may be segmented, are applied to an underside of the base, and the scrim and adhesive beads to the opposite side of the base. An activating tool has extending electrodes which electrically contact the spaced-apart conductive strips to pass a current through the heating section to melt the adhesive beads in preparation for application to the objects to be joined.
摘要:
A fabric article that generates heat upon application of electrical power is formed, for example, by joining stitch and loop yarns to form a fabric prebody, with the loop yarn overlaying the stitch yarn at a technical face and forming loops at a technical back of the fabric prebody. An electrical resistance heating element, e.g., in the form of a conductive yarn, is incorporated into the fabric prebody at symmetrical and/or asymmetrical spaced-apart intervals as the stitch yarn, the electrical resistance heating elements extending between opposite edge regions of the fabric and conductor elements, e.g. located along edge regions, connect the electrical resistance heating elements to a source of electrical power. The technical face and/or the technical back of the fabric body may have fleece formed by finishing in a manner to avoid damage to electrical conductance of the electrical resistance heating elements. Preferably, the conductive yarn has a core of insulating material, an electrical resistance-heating element about the core, and a sheath material surrounding the electrical resistance heating element and core.