Samsung Electronics Co., Ltd.

Joon Dong Ji

Jae In Kim

Disclosed is a refrigerator having a cool air dispersing device. A duct housing forming a cool air duct is installed on a rear part of a cooling compartment, and many cool air discharge ports open into the cooling compartment are formed on the duct housing. In the cool air duct are installed many cool air dispersing blades of planar plate shape corresponding to the discharge ports respectively and capable of rotating. The blades control a discharge direction of cool air supplied into the cooling compartment according to a rotational position thereof. The blades have a size similar to the discharge ports, and can close the discharge ports at a predetermined rotational position thereof. While a cooling system is not operating, the discharge ports are closed by the blades, whereby the backflow of air in the cooling compartment toward an evaporator is prevented, and less frost is generated on the evaporator.

Refrigerator with a cool air dispersing device capable of preventing

Disclosed is a refrigerator having a device for opening/closing cool air discharge ports through which cool air is supplied into a cooling compartment. In a cool air duct are installed shutter members for opening/closing the ports. The shutter members are installed a positions opening the ports, and are driven by a cam rotated by a motor. The ports and the shutter members are disposed symmetrically around the cam. As the cam rotates, the shutter members close the ports in turn. When a specific area becomes a desired temperature, a port corresponding to the specific area is closed by the shutter members. Thus, the area in the compartment to which cool air is supplied can be regulated, and the overcooling of the compartment can be prevented.

Refrigerator having a device for opening/closing cool air discharge ports

Disclosed is a method of controlling a cool air dispersing operation of a refrigerator for maintaining the temperature in a cooling compartment uniform. Many horizontal dispersing blades and vertical dispersing blades of planar plate shape, which respectively control the horizontal and vertical discharge directions of cool air are installed in a cool air duct. The blades are continuously rotated while a deviation of temperature in the cooling compartment is smaller than a predetermined value, whereby the cool air in the cooling compartment is successively supplied into the respective areas in the cooling compartment. Meanwhile, if the deviation is greater than the predetermined value, the blades are stopped at a specific position so that the cool air is discharged toward an area of which temperature is high. Thus, the temperature in the cooling compartment becomes uniform in a short period of time. Further, no vortex of cool air is generated since the blades are shaped into a planar plate.

Method for controlling cool air dispersing operation of a refrigerator

Disclosed is a refrigerator having a cabinet for forming a cooling compartment, and a duct for forming a passage of cool air. The duct is provided in an inner wall of the cooling compartment and has at least one cool air discharge port opened into the cooling compartment. The refrigerator has a pair of horizontal-dispersing blades disposed near the cool air discharge port in the duct, a rotational shaft connected with the horizontal-dispersing blades and extended along a vertical axis, and a motor for driving the rotational shaft. The cool air is uniformly dispersed in the cooling compartment.

Refrigerator having cool air dispersing blades

Disclosed is a refrigerator having a cool air dispersing device capable of dispersing cool air horizontally and vertically. In a duct of a fresh food compartment are installed a horizontal dispersing blade for dispersing the cool air flowing thereinto horizontally and a vertical dispersing blade for dispersing it vertically. The horizontal dispersing blade is rotated by a motor, and the rotation of the motor is transmitted to the vertical dispersing blade as an elevational/de-elevational movement. Thus the vertical dispersing blade is rotated while the horizontal dispersing blade is rotated, whereby the cool air discharged into the compartment is dispersed horizontally and vertically. Therefore, the temperature in the compartment is maintained uniform.

Refrigerator having horizontal and vertical dispersing blades

Disclosed is a refrigerator having a discharge member for changing a discharge position of cool air. A duct plate for forming a cool air duct is installed on a side wall of a cooling compartment. The duct plate has an opening part opened into the compartment. The discharge member is installed on the duct plate. The discharge member closes the opening part, and has a discharge pipe for discharging cool air flowing into the cool air duct toward the compartment. The discharge member is supported by a guide part to be capable of sliding vertically or horizontally. The position of the discharge member is controlled by a driving device. Thus, the cool air can be uniformly distributed vertically and horizontally, or can be concentrated on a specific area. Further, the amount of frost which may be generated by a backflow of cool air is reduced.

Refrigerator with a discharge member for changing a discharge position

Disclosed is a refrigerator having a device for dispersing cool air in a cooling compartment. A duct having cool air discharge ports is formed in an inner wall of the compartment. In the duct are installed a horizontal-dispersing blade disposed along a vertical rotational shaft, and a vertical-dispersing blade capable of rotating with respect to a horizontal axis. A worm gear in installed on the shaft, and a worm wheel engaged with the worm gear is installed on the vertical-dispersing blade. As the shaft is rotated by a motor, the blades rotate. Thus, the cool air is uniformly dispersed in the compartment, and the temperature in the compartment is maintained uniform. The angular position of the blades are controlled independently of each other substantially, so concentrative cooling can be performed easily.

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Suwon, South Korea

Joon Dong Ji