Abstract: A paint composition is prepared by mixing each of an acrylic resin, an acrylic polyol resin, a polycarbonate diol resin, a diisocyanate, a solvent, and an antibacterial agent in appropriate amounts. As a result, the paint composition has improved physical properties and effective antibacterial activities.

Abstract: The present disclosure relates to an organic electroluminescent compound represented by formula 1 and an organic electroluminescent device comprising the same. By comprising the organic electroluminescent compound of the present disclosure, it is possible to provide an organic electroluminescent device having lower operating voltage, higher luminous efficiency and/or longer lifespan properties as compared with a conventional organic electroluminescent device.

Abstract: A power conversion device comprises: a housing having a space therein, and including a first opening and a second opening; an electronic component arranged in the space; a duct having one end coupled to the first opening and the other end coupled to the second opening, and having a flow path through which air flows and which is divided from the space; and a fan which is arranged on one end of the duct and which allows air to flow in the flow path, wherein the electronic component includes a radiation fin protruding from the side surface thereof, and a coupling groove to which the radiation fin is coupled is arranged on the side surface of the duct.

Abstract: A power conversion apparatus comprises: a housing including an opening; and a filter module coupled to the opening, wherein the filter module includes: a first filter; a second filter disposed inside the first filter; and a frame coupled to side surfaces of the first filter and the second filter, the first filter includes a plurality of filter units spaced apart in the vertical direction, and an upper surface of the filter unit has an inclined surface formed thereon such that the distance to a bottom surface of the housing becomes closer toward the outside.

Abstract: A heat dissipation module comprises: a heating element; a heat dissipation member disposed on one side of the heating element and including a first plate and a second plate; a third plate disposed on one side of the heating element; and a heat transfer path for transferring the heat generated from the heating element to the heat dissipation member. The heat transfer path comprises: a first path disposed between the first plate and the second plate; a third path disposed within the third plate; and a plurality of unit heat transfer paths having a second path connecting the first path and the third path, wherein the respective second paths of the plurality of unit heat transfer paths are spaced apart from each other.

Abstract: A power converter comprises: a housing which has an inner space part formed therein; an electronic component which is disposed in the space part and generates heat due to the operation thereof; and a heat dissipating member a part of which is disposed on the electronic component and the other part of which is disposed at the inner surface of the housing, wherein the heat dissipating member comprises: a frame; a heat dissipating pipe disposed at one surface of the frame; and a thermal pad disposed between the heat dissipating pipe and the electronic component or between the heat dissipating pipe and the inner surface of the housing.

Abstract: A power generation device according to an embodiment of the present invention comprises: a fluid flow part in which a fluid passes through a flow path pipe formed therein and which includes a first surface, a second surface opposite to the first surface, a third surface between the first surface and the second surface, a fourth surface opposite to the third surface, a fifth surface between the first surface, the second surface, the third surface, and the fourth surface, and a sixth surface opposite to the fifth surface; and a first thermoelectric module disposed on the first surface, wherein a fluid inlet and a fluid outlet arranged apart from each other are formed in the third surface, the flow path pipe is formed so as to be connected from the fluid inlet to the flow outlet, the flow path pipe includes a plurality of first flow path parts arranged along a first direction, a plurality of second flow path parts arranged along a second direction perpendicular to the first direction, and a plurality of bending

Abstract: The present disclosure discloses a fluoroalkyl glycerin derivative usable as an excellent surfactant by having functional groups and the number of carbon atoms controlled in the molecular structure, and its use as a surfactant. A fluoroalkyl glycerin derivative according to the present disclosure is used as a fluorine-based nonionic surfactant, and replaces existing fluoro compounds as well as having excellent surfactant properties compared to existing surfactants having a linear alkyl group.

Abstract: The present disclosure discloses a method for preparing a hybrid-type fluorine-based nonionic surfactant capable of producing a high purity material in a high yield. By preparing a hybrid-type fluorine-based nonionic surfactant according to the present disclosure, the surfactant is mass-produced in a high yield through controlling reaction conditions including a solvent.

Abstract: A power generation apparatus according to an embodiment of the present invention comprises: a cooling unit, a thermoelectric module comprising a thermoelectric element disposed on one surface of the cooling unit, and a heat sink disposed on the thermoelectric element; a guide plate disposed opposite the thermoelectric module; and a branch unit disposed on another surface perpendicular to the one surface of the cooling unit. The heat sink includes multiple heat dissipation fins which are spaced apart from each other. The ratio of the shortest horizontal distance between the heat sink and the guide plate to the shortest horizontal distance between the branch unit and the guide plate is 0.0625 to 0.25.

Abstract: A power generation apparatus according to one embodiment of the present invention, comprises: a cooling unit, a first thermoelectric module including a first thermoelectric element disposed on a first surface of the cooling unit, and a first heat sink disposed on the first thermoelectric element; and a first wiring part connected to the first thermoelectric element, wherein the cooling unit has a fluid receiving part formed in a first area thereof and a tunnel formed in a second area thereof, and the first wiring part passes through the tunnel.

Abstract: The disclosure relates to a lighting device. The lighting device includes a body including a side wall and a base disposed on the side wall; a light source which is disposed below the base of the body; a power supply which is disposed on the base of the body to supply a power to the light source; and a clip including a connection portion and an extension portion extending from the connection portion and disposed on the side wall of the body, wherein the extension portion of the clip has at least one bent portion which is bent toward the side wall of the body.

Abstract: The embodiments discloses a lighting module. The lighting module disclosed in the embodiments comprises: a heat dissipating plate including a plurality of heat dissipating fins at the lower portion thereof; a light emitting module having a printed circuit board coupled on the heat dissipating plate, and a plurality of light emitting devices disposed on the printed circuit board; a lens cover disposed on the light emitting module and having a plurality of lens units corresponding to the light emitting devices, respectively; and a waterproof frame disposed between the upper periphery of the heat dissipating plate and the lens cover, wherein the waterproof frame includes a first waterproof projection projecting in a direction toward the bottom surface of the lens cover and a second waterproof projection projecting in a direction toward the top surface of the heat dissipating plate.

Abstract: A lighting device includes a housing; a socket with a first portion coupled to an inner surface of the housing and a second portion extending from the first portion and including a connector; a light source body having a light emitting module with a terminal received by and in electrical communication with the connector; and a reflector facing the light source body, the light source body supported by the socket at a position apart from the housing.

Abstract: A holder and a lighting device including the holder are provided. The holder may include a holder body having a hole, an outlet provided in a side of the holder body, and a channel provided in the holder body to connect the hole with the outlet. The channel may include a first channel provided in a circumferential direction and having one side connected to the outlet, a second channel that guides one of two wires connected to a light source module to the first channel, and a third channel that guides another one of the two wires to the first channel.

Abstract: A lighting device may be provided according to the embodiment of the present invention. The lighting device according to the embodiment of the present invention includes: a light source which includes a substrate including a top surface and a bottom surface, a plurality of light emitting devices disposed in a central portion of the bottom surface of the substrate, and an input/output portion disposed in an edge portion of the bottom surface of the substrate and electrically connected to a wire; and a body which is coupled to the substrate of the light source and includes an opening through which light from the plurality of light emitting devices of the light source passes. The body includes an inner surface which defines the opening. The body includes a cover portion which is disposed on the inner surface of the body and covers the input/output portion of the light source and the wire.

Abstract: A lighting apparatus includes a first body including a first inner circumferential surface and a first outer circumferential surface, a cover disposed on and fastened to the first body and including an open bottom surface, an optical member disposed between the first body and the cover and exposed at the open bottom surface of the cover, and a light source member including a circuit board disposed between the cover and the optical member along an edge of the cover and at least two light sources mounted on the circuit board to face each other.

Abstract: A lighting device may be provided that includes: a base; a substrate disposed on the base and comprising a top surface; a plurality of light emitting devices disposed on the top surface of the substrate; a member comprising a housing portion and an inner portion disposed inside the housing portion; and a optical plate disposed on the plurality of light emitting devices and the inner portion, wherein: the housing portion is disposed on the base and coupled to the base, the inner portion comprises a sloped surface forming an obtuse angle with the top surface of the substrate, the housing portion comprises an upper part and a lower part, an outer diameter of the upper part is greater than an outer diameter of the lower part, the housing portion comprises an outer surface, and the housing portion comprises a projection part extending from the outer surface.

Abstract: A lighting device may be provided that comprises a housing including an inner surface; a light source unit comprising a body disposed under the housing and a light emitting module disposed under the body; and a reflector disposed between the housing and the body, wherein the body comprises a top surface disposed under the inner surface of the housing and a bottom surface, and wherein the light emitting module is disposed on the bottom surface.

Abstract: A lighting device includes a housing including a hole; a light source body including a light emitting module with a terminal; and electrical connection means including a portion projecting through the hole and having a connector electrically connected to the terminal and physically connecting the housing with the light source body.