Abstract: In an embodiment, a ventilation duct device for a vehicle seat, includes a cushion duct, a blower coupled to the cushion duct, configured for air exiting the blower to enter the cushion duct, a back duct, a corrugated pipe, configured for air exiting the blower to enter the back duct via the corrugated pipe, an elastic support unit coupled to and at least partially located within the corrugated pipe, a first end of the elastic support unit coupled to the cushion duct, a second end of the elastic support unit coupled to the back duct, and a spring member coupled between the first end of the elastic support unit and the second end of the elastic support unit, and the spring member being at least partially located within the corrugated pipe.

Abstract: A duct for a ventilation seat of a vehicle includes a seat cushion duct and a seatback duct that are interconnected so as to communicate with each other via a telescopic sliding duct. The telescopic sliding duct is variable in length in a forward-backward direction such that a length of the telescopic sliding duct interconnecting the seat cushion duct and the seatback duct may be increased when the seatback is folded, and the length of the telescopic sliding duct interconnecting the seat cushion duct and the seatback duct may be reduced when the seatback is unfolded. Because the telescopic sliding duct can vary in length, it is possible to avoid damage due to a load applied to the telescopic sliding duct by folding and unfolding operations of the seatback. Further, it is possible to easily supply air to the seatback and the seat cushion without leakage of air.

Abstract: As a method for achieving the objective of the present invention, provided is a neck exercise support for neck exercise formed in the upper part of a chair, the neck exercise support comprising: a contact plate which is to be in contact with the head; a central hole which forms an empty space in the center of the contact plate; a first insert hole which transversely penetrates the interior of the contact plate; a contact plate support which is configured so as to support the contact plate; a second insert hole which is transversely formed in the center of the contact plate support to correspond to the first insert hole of the contact plate; a coupling part which penetrates the first insert hole and the second insert hole; a contact plate support through-hole which is formed in the vertical direction with respect to the second insert hole; and a pair of first coupling rods which are coupled with the contact plate support through-hole; wherein the contact plate is coupled with the contact plate support via the

Abstract: An auxiliary air conditioning apparatus may include a blower unit, wherein a blower may be provided therein to forcibly blow intake air, a temperature control unit fluid-connected to the blower unit to receive air blown from the blower unit, wherein the temperature control unit includes an evaporator and a heater therein and may be connected to an air duct to exhaust air that may be cooled by the evaporator or heated by the heater, an auxiliary temperature control unit fluid-connected to the blower unit to receive air blown from the blower unit and fluid-connected to the air duct, wherein the auxiliary temperature control unit includes a heat exchanger core provided therein, the heat exchanger core having a thermoelectric device, an auxiliary power supply supplying electrical power to the blower and the heat exchanger core, and an auxiliary cooling/heating control unit controlling operation of the blower and the heat exchanger unit.

Abstract: The present invention relates to an armrest that includes a rotating shaft, an intake port, an exhaust port, an internal duct and a cup holder. The rotating shaft is disposed in the rear end of the armrest body and configured to pivotally connect the armrest body to a seat so that the armrest body may alternate between a retracted position in which the armrest functions as a seatback and an unfolded position in which the armrest functions as an armrest. The intake port, exhaust port, and internal duct are configured to provide heating and cooling of the cup holder.

Abstract: A positive temperature coefficient (PTC) rod assembly is provided for a PTC heater. PTC elements and an electrode terminal to which an insulator is attached may be retained in a channel-shaped rod cover having an open side so as to be exposed to the outside, and a heat-radiating fin is in direct contact with one surface of the rod cover so as to conduct heat, and another heat-radiating fin may be in direct contact with one surface of the insulator attached to an outer surface of the electrode terminal so as to conduct heat, so that the PTC rod assembly minimizes empty space in an inner space of the rod cover, increases heat transfer efficiency, and is easily manufactured due to a simple structure and reduction in the number of parts.

Abstract: A Positive Temperature Coefficient (PTC) assembly, in which protrusions are formed on opposite longitudinal edges of an electrode terminal, PTC elements are held between the protrusions and are in contact with the electrode terminal, an insulating member is attached to an outer surface of the electrode terminal, and a rod cover houses therein the electrode terminal, the PTC elements and the insulating member. A simple structure is realized, fabrication costs are reduced, and a hollow space inside the rod cover is minimized, leading to improved heat transfer efficiency from the PTC elements to the rod cover, reduced noise and a slim structure.

Abstract: The present invention relates to an armrest that includes a rotating shaft, an intake port, an exhaust port, an internal duct and a cup holder. The rotating shaft is disposed in the rear end of the armrest body and configured to pivotally connect the armrest body to a seat so that the armrest body may alternate between a retracted position in which the armrest functions as a seatback and an unfolded position in which the armrest functions as an armrest. The intake port, exhaust port, and internal duct are configured to provide heating and cooling of the cup holder.

Abstract: A cup holder, which cools and heats a cup, includes an inner holder, an outer holder, a thermoelectric device and a blower. The inner holder, made of metal, holds the cup therein and has a protrusion on a side portion thereof. An open portion of the protrusion defines a flow hole. The outer holder surrounds a side surface of the inner holder at a predetermined interval, such that a circulation space is formed between the outer holder and the inner holder. The thermoelectric device, disposed in the circulation space, includes first and second sections. The first section closely adjoins the protrusion of the inner holder. The second section extends through the outer holder and is exposed outward. The blower is disposed inside the circulation space adjacent to the flow hole, and enables air inside the inner holder and air inside the circulation space to circulate and transfer heat.

Abstract: A Positive Temperature Coefficient (PTC) rod assembly and a preheater incorporating the same. The PTC rod assembly includes a negative terminal and a positive terminal coupled with opposite surfaces of a PTC rod, the negative and positive terminals being spaced apart from and parallel to each other; a PTC element interposed between and being in electrical contact with the negative and positive terminals, an insulating film adhered to exposed portions of the negative and positive terminals, which are coupled with the PTC rod, and a PTC rod housing. The PTC rod housing stores the PTC rod therein, the negative and positive terminals and the PTC element coupled with the PTC rod, and the insulating film adhered to the PTC rod. The PTC rod assembly is used stably even when a high voltage is applied thereto. A short circuit is prevented from occurring between the two terminals due to contact.

Abstract: A high-capacity positive temperature coefficient heater, may include a plurality of positive temperature coefficient rods, wherein each of the positive temperature coefficient rods has a built-in positive temperature coefficient element that generates heat when electric power is supplied thereto, a plurality of heat-radiating fins attached to either side of the positive temperature coefficient rods along a longitudinal direction thereof, an upper housing coupled to one ends of the positive temperature coefficient rods, and a lower housing coupled to the other ends of the positive temperature coefficient rods, wherein the heat radiating fins are bonded to the positive temperature coefficient rods by heat conductive adhesive.

Abstract: An auxiliary air conditioning apparatus may include a blower unit, wherein a blower may be provided therein to forcibly blow intake air, a temperature control unit fluid-connected to the blower unit to receive air blown from the blower unit, wherein the temperature control unit includes an evaporator and a heater therein and may be connected to an air duct to exhaust air that may be cooled by the evaporator or heated by the heater, an auxiliary temperature control unit fluid-connected to the blower unit to receive air blown from the blower unit and fluid-connected to the air duct, wherein the auxiliary temperature control unit includes a heat exchanger core provided therein, the heat exchanger core having a thermoelectric device, an auxiliary power supply supplying electrical power to the blower and the heat exchanger core, and an auxiliary cooling/heating control unit controlling operation of the blower and the heat exchanger unit.

Abstract: A positive temperature coefficient heater may include at least one positive temperature coefficient rod having a heating module inserted into a rod case made of brass and plated with tin, at least one heat-radiating fin made of brass, plated with tin, and contacted and coupled with each of opposite outer faces of the positive temperature coefficient rod, and upper and lower housings coupled to opposite longitudinal ends of the positive temperature coefficient rod, wherein the positive temperature coefficient rod and the heat-radiating fin are joined together by soldered portions.

Abstract: A Positive Temperature Coefficient (PTC) rod assembly and a preheater incorporating the same. The PTC rod assembly includes a negative terminal and a positive terminal coupled with opposite surfaces of a PTC rod, the negative and positive terminals being spaced apart from and parallel to each other; a PTC element interposed between and being in electrical contact with the negative and positive terminals, an insulating film adhered to exposed portions of the negative and positive terminals, which are coupled with the PTC rod, and a PTC rod housing. The PTC rod housing stores the PTC rod therein, the negative and positive terminals and the PTC element coupled with the PTC rod, and the insulating film adhered to the PTC rod. The PTC rod assembly is used stably even when a high voltage is applied thereto. A short circuit is prevented from occurring between the two terminals due to contact.

Abstract: A positive temperature coefficient heater may include at least one positive temperature coefficient rod having a heating module inserted into a rod case made of brass and plated with tin, at least one heat-radiating fin made of brass, plated with tin, and contacted and coupled with each of opposite outer faces of the positive temperature coefficient rod, and upper and lower housings coupled to opposite longitudinal ends of the positive temperature coefficient rod, wherein the positive temperature coefficient rod and the heat-radiating fin are joined together by soldered portions.

Abstract: A positive temperature coefficient (PTC) rod assembly is provided for a PTC heater. PTC elements and an electrode terminal to which an insulator is attached may be retained in a channel-shaped rod cover having an open side so as to be exposed to the outside, and a heat-radiating fin is in direct contact with one surface of the rod cover so as to conduct heat, and another heat-radiating fin may be in direct contact with one surface of the insulator attached to an outer surface of the electrode terminal so as to conduct heat, so that the PTC rod assembly minimizes empty space in an inner space of the rod cover, increases heat transfer efficiency, and is easily manufactured due to a simple structure and reduction in the number of parts.

Abstract: A high-capacity positive temperature coefficient heater, may include a plurality of positive temperature coefficient rods, wherein each of the positive temperature coefficient rods has a built-in positive temperature coefficient element that generates heat when electric power is supplied thereto, a plurality of heat-radiating fins attached to either side of the positive temperature coefficient rods along a longitudinal direction thereof, an upper housing coupled to one ends of the positive temperature coefficient rods, and a lower housing coupled to the other ends of the positive temperature coefficient rods, wherein the heat radiating fins are bonded to the positive temperature coefficient rods by heat conductive adhesive.