Samsung Electronics Co., Ltd.

Min Gu Chang

Seung Jun Lee

Jong Won Park

Suk Ho Lee

Kyung Hoon Kim

Hyeong Joon Seo

Jong In Lee

Chang-Yong Lee

Il Yong Cho

Kyoung Rock Kim

Byoung Guk Lim

Chang Yong Lee

Hyung Mo Koo

Jae Hun Hur

Dong-Il Jung

Dong Il Jung

Yu Dong Won

Yong Sang Kong

Jong Won Bak

Cha Wang Jang

Tae Hoon Ha

Ii Yong Cho

Dae Chui Han

Dong Ii Jung

Seok Hyun Jang

Jae-Yang Lee

Dong Han Ko

Dae-Chul Han

Provided is a heat pump system including a compressor for compressing a refrigerant the heat pump system including: an input interface configured to receive an input of an authentication code; a display configured to display the authentication code input through the input interface; and a controller to control an operation of the heat pump system according to whether a control program to control the operation is to be activated based on the authentication code input through the input interface.

Server, heat pump system, and method of authenticating installation of heat pump system

Disclosed herein is an air conditioner and control method of determining duration to be maintained at a reference temperature of a mode change based on an outdoor temperature. The air conditioner includes a compressor, an outdoor heat exchanger, an indoor heat exchanger, a four-way valve configured to guide refrigerant compressed in the compressor to either the outdoor heat exchanger or the indoor heat exchanger according to a cooling mode or a heating mode, and a controller configured to determine duration corresponding to a measured outdoor temperature, change the heating mode to the cooling mode when the measured indoor temperature is maintained at a first reference indoor temperature or greater for the determined duration, and change the cooling mode to the heating mode when a measured indoor temperature is maintained at a second reference indoor temperature or less for the determined duration.

Air conditioner and control method to change an operating mode based on a duration of time determined based on an outdoor temperature

A heat pump performs a simultaneous air-conditioning and heating operation through the addition of a flow path switching apparatus. The heat pump may include a plurality of outdoor units, a plurality of indoor units, and a plurality of flow path switching apparatuses that switch a flow path between an outdoor unit and an indoor unit. A refrigerant flow path may be formed from the outdoor unit to the indoor unit via a high-pressure gas pipe. The flow path switching apparatuses may switch a flow path so that a refrigerant flow path is formed from the indoor unit to the outdoor unit via a low-pressure gas pipe. The heat pump may further include an indoor unit mode controller that is connected to the plurality of outdoor units through a liquid pipe, and which is connected to each of the plurality of flow path switching apparatuses.

Heat pump and flow path switching apparatus

A cooling and heating control method of a multi type air conditioner in which a target pressure of a compressor is adjusted based on conditions of respective indoor units so as to reduce power consumption is provided. The cooling control method includes determining the indoor unit desired to execute power saving control, judging whether or not a difference between a temperature of a space in which the indoor unit desired to execute power saving control is located and a set temperature of the indoor unit is less than a reference value, raising a target evaporation temperature of the indoor unit upon judging that the difference is less than the reference value, comparing an evaporation temperature of the indoor unit with the raised target evaporation temperature, and raising an evaporation pressure of a compressor, when the evaporation temperature of the indoor unit is lower than the raised target evaporation temperature.

Multi type air conditioner and cooling and heating control method thereof

A multi-type air conditioner includes an outdoor unit disposed at an exterior space, a plurality of indoor units disposed at interior spaces, and a mode conversion unit connected to the outdoor unit and the plurality of indoor units through refrigerant pipes to circulate a refrigerant between the outdoor unit and the plurality of indoor units. The mode conversion unit includes a plurality of subcooling units which are configured to subcool a refrigerant before the refrigerant is introduced to the plurality of indoor units, using a subcooling refrigerant pipe which sequentially passes through at least one of the plurality of subcooling units, so that a refrigerant after having passed through the subcooling unit, is in a state of pure gas while ensuring a desired subcooling degree that is suitable for each indoor unit.

Multi-type air conditioner

Disclosed is a hoist apparatus having an improved structure to load an object to be transported in a horizontal direction. The hoist apparatus includes a travel unit to travel along a rail, a carrier unit coupled to the travel unit so as to move in a first direction, and a cart unit coupled to the carrier unit so as to move in a second direction different from the first direction, wherein the cart unit includes a body portion, in which an object to be transferred is located, and a drive portion to drive the body portion in the second direction.

Hoist apparatus and hoist transporting system

Growing community of inventors

Anyang-si, South Korea

Min Gu Chang