US Pat. No. 9,599,320

LED LIGHTING APPARATUS

SAMJIN LND CO., LTD., Hw...

1. An LED lighting apparatus comprising:
a main cover with an elongated pipe shape having a cross-section formed of a closed curve line and both ends of a length direction
formed to be open, the main cover accommodating an LED and a driving circuit unit driving the LED;

an external frame sliding-coupled to an external surface of the main cover along a length direction of the main cover;
an inner frame having a shape extending in a direction parallel to the length direction of the main cover and sliding-coupled
to an internal surface of the main cover along the length direction of the main cover to be positioned at the inner space
of the main cover; and

a close-and-seal cover closing and sealing both open ends of the main cover to close and seal the inner space of the main
cover,

wherein a bottom surface of the inner frame supports an LED substrate including the LED, and top surface of the inner frame
supports the driving circuit unit,

the close-and-seal cover is coupled to the external frame and the inner frame,
an insertion groove that is concave in an inner direction at an upper side of the main cover is integrally formed with the
main cover,

the external frame includes an insertion protrusion corresponding to the insertion groove,
the external frame is sliding-inserted to the upper side of the main cover to be coupled such that the insertion protrusion
is coupled to the insertion groove,

a first coupling hole is formed at both end sides of the external frame in the length direction,
a second coupling hole is formed at both end sides of the inner frame in the length direction, and
the close-and-seal cover is coupled to the external frame and the inner frame by a fastening member coupled to the first coupling
hole and the second coupling hole.

US Pat. No. 10,485,055

LIGHTING APPARATUS INCLUDING FUNCTION CONFIGURATION SWITCH MODULE AND CONTROL METHOD THEREFOR, AND COMPUTER-READABLE RECORDING MEDIUM HAVING PROGRAM RECORDED THEREON FOR EXECUTING SAME

SAMJIN LND CO., LTD, Hwa...

1. A lighting apparatus including a function configuration switch module, the apparatus comprising:a lighting module installed in a predetermined indoor space and emitting light;
a lighting driving module applying driving power to the lighting module;
a communication module performing data communication with an external lighting control device or a sever;
a storage module storing a program that controls an operation of the lighting module, data generated by executing the program, and unique identification information of the lighting apparatus;
a function configuration switch module for configuring access to a wireless mesh network via a function configuration switch; and
a control module controlling an operation of the lighting driving module such that the driving power is applied to the lighting module according to the program stored in the storage module by being provided with a lighting control signal output from the external lighting control device or the server through the communication module, and controls such that the unique identification information of the lighting apparatus stored in the storage module, and a signal for bridge setting or releasing are transmitted through the communication module according to the switching function selection signal output from the function configuration switch module.

US Pat. No. 9,936,567

LED ILLUMINATION SYSTEM AND METHOD FOR CONTROLLING THE SAME

SAMJIN LND CO., LTD., Hw...

1. An LED illumination system comprising:a plurality of LED lamps, each LED lamp comprising:
an LED array including one or more LED elements that interoperate with input power and emit light;
a power management unit that controls supplied power so that power is input to the LED array;
a control unit that controls the power management unit to control an operation of the LED array in response to a signal input set by a user through a user terminal; and
a wireless communication module that transmits a received wireless communication signal to the control unit and transmits information received from the control unit in the form of a wireless communication signal,
wherein the wireless communication modules of the LED lamps form mesh nodes for constituting a wireless mesh network,
a bridge mode of at least one of the mesh nodes is enabled, the bridge mode being dynamically configured according to a distance to the user terminal and the mesh node's own traffic, one of the mesh nodes having the enabled bridge mode operating as a bridge node, whereby the bridge node needs not to be set at a specific position and an installation of the LED illumination system is facilitated, and the wireless communication modules in the wireless mesh network quickly respond to a network change and dynamically constitute the bridge node optimized based on autonomous communication, so as to enable smooth communication with the user terminal without regard to nodes in relation to newly added or removed LED lamps,
when a control signal is received from the user terminal, each mesh node having the enabled bridge mode transmits rank information for connection to the user terminal corresponding to a distance to the user terminal and the each mesh node's own traffic,
the each mesh node compares rank information received from a neighboring mesh node having the enabled bridge mode with the each mesh node's own rank information and generates an order of priority for connection to the user terminal,
the mesh node with a lower order of priority excludes itself from the rank for connection to the user terminal, and
the mesh node with a highest order of priority operates as the bridge node for connection between the user terminal and the wireless mesh network,
wherein the bridge mode of the mesh nodes is rearranged considering a position of the mesh node operating as the bridge node, whereby a lightweight protocol is achieved for an efficient communication operation within the wireless mesh network, and a control command for the each LED lamp is performed with minimum delay.

US Pat. No. 10,197,262

LED LIGHTING APPARATUS HAVING NATURAL CONVECTION-TYPE HEAT DISSIPATION STRUCTURE

SAMJIN LND CO., LTD., Hw...

1. An LED lighting apparatus having a natural convection-type heat dissipation structure, the LED lighting apparatus comprising:a heat sink coupled to a back surface of a PCB to which a plurality of light emitting diode (LED) devices is mounted, the heat sink absorbing heat radiated from the LED devices,
wherein center portions of the heat sink and the PCB are provided with respective openings serving as a convection hole that induces natural convection such that hot air under the heat sink rises along with hot air heated by heat radiated from an upper surface of the heat sink, and surrounding cooler air is supplied to the upper surface of the heat sink and to around the LED devices,
wherein a power supply block for supplying electric power to the LED devices is mounted on an upper surface of the heat sink, the power supply block has a width smaller than a size of the convection hole such that the power supply block crosses over a center portion of the convection hole without completely blocking the convection hole, side end portions of the power supply block are bent downward such that a lower surface of the power supply block is spaced from the convection hole, and the side end portions, which are bent downward, are coupled to the upper surface of the heat sink,
wherein the side end portions of the power supply block are provided with respective fixing members, and an installation bracket is connected to the fixing members by hinges.