Samsung Electronics Co., Ltd.

Seung Kwan Choi

Kyung Hoon Kim

Kwon Jin Kim

Joon-Ho Yoon

Dong-Gyu Lee

Chang Seob Kim

Heung Seob Choi

Ho Chan Cho

Chang Hoon Baek

Jei Min Choi

Sung Goo Kim

Tae Il Kim

Dong-Il Jung

Kyoung-Rock Kim

Eom Ji Jang

Dong Sik Jin

Ji-Ho Baek

Youn Sang Jang

Sun-Muk Choi

Jei-Min Choi

Dong Il Jung

Kyo Seung Kim

Sun-muk Choi

An air conditioner includes a heat exchanger including a refrigerant tube, a fin assembly, and a fan assembly located at an upper portion of the heat exchanger. The heat exchanger includes a first heat exchanger adjacent to the fan assembly and a second heat exchanger under the first heat exchanger. A density of a fin assembly at the first heat exchanger is larger than that of a fin assembly at the second heat exchanger. The heat exchanger may include a plurality of layers with a refrigerant introduced into each of inlet pipes of the heat exchanger flowing evenly at each of the layers. The refrigerant to be discharged to each of outlet pipes is discharged at the same temperature.

Air conditioner having an improved outdoor unit

Disclosed herein is an air conditioner. The air conditioner includes an outdoor unit having a compressor, an outdoor heat exchanger, and a flowpath switching valve disposed on a refrigerant flowpath between the compressor and the outdoor heat exchanger, a plurality of indoor units configured to operate in a cooling mode or in a heating mode, a mode controller configured to selectively guide refrigerant received from the outdoor unit to the plurality of indoor units. The mode controller guiding the refrigerant through one or more of: a first refrigerant pipe extending from the flowpath switching valve to the mode control unit, a second refrigerant pipe extending from the flowpath switching valve and diverging to the outdoor heat exchanger, and to the mode control unit, and a third refrigerant pipe extending from the outdoor heat exchanger to the mode controller.

Air conditioner

A light emitting diode (LED) driving apparatus includes: a first circuit connected to a primary winding of a transformer, and configured to receive input power and transfer the input power to the primary winding of the transformer; a second circuit connected to a secondary winding of the transformer to generate output power for driving a plurality of LEDs; and a controller including a control circuit configured to control the second circuit, and a power detection circuit configured to compare a magnitude of the input power with a predetermined reference power magnitude range, and transmit a control command to the control circuit in response to determining that the magnitude of the input power is outside the predetermined reference power magnitude range.

LED driving apparatus and lighting apparatus

An outdoor unit of an air conditioner is provided. The outdoor unit may include a compressor for compressing a refrigerant; a condenser for condensing the refrigerant discharged from the compressor; a control device for containing electronic parts to control the outdoor unit; and a cooling unit in contact with a heat generating part of the electronic parts to cool the heat generating part, wherein the cooling unit comprises a first heat radiation member installed to be in contact with the heat generating part; a refrigerant pipe extending through the first heat radiation member and enabling a refrigerant to flow through the refrigerant pipe; and a second heat radiation member coupled with the first heat radiation member for heat transfer and installed to be in contact with air flowing into the control device.

Outdoor unit of air conditioner and control device for the outdoor unit

A lighting system includes a plurality of lighting devices including a controller transmitting and receiving data by using near field communications (NFC) The lighting system further includes a control device that collects identification information for the plurality of respective lighting devices through the NFC communications before the plurality of lighting devices are installed. The control device also generates settings data to control the plurality of lighting devices, based on the identification information, and then transmits the generated settings data to the plurality of respective lighting devices.

Lighting system, lighting device, and control method thereof

Growing community of inventors

Suwon-si, South Korea

Seung Kwan Choi