Abstract: An apparatus for preventing vacuum of a scroll compressor is provided. The apparatus includes a fixed scroll having a bypass hole, through which a suction chamber of a casing is connected to a discharge chamber of the casing; a valve block having an inner channel, through which the bypass hole of the fixed scroll is connected to the discharge chamber of the casing, and fixedly installed at the fixed scroll; and a valve member disposed between the bypass hole of the fixed scroll and the inner channel of the valve block. Since the apparatus is assembled at an outer periphery of the fixed scroll, a processing error of the fixed scroll is prevented, thereby reducing production costs. Also, since foreign materials generated when a refrigerant channel is processed do not remain in a valve hole, the valve member is prevented from being mal-operated, productivity is enhanced, and fabrication costs reduced.

Abstract: An apparatus for preventing vacuum of a scroll compressor, comprising: a fixed scroll having a bypass hole through which a suction chamber of a casing is connected to a discharge chamber of the casing; a valve block having an inner channel through which the bypass hole of the fixed scroll is connected to the discharge chamber of the casing, and fixedly installed at the fixed scroll; and a valve member disposed between the bypass hole of the fixed scroll and the inner channel of the valve block, for opening and closing between the bypass hole and the inner channel. Since the apparatus is assembled at an outer periphery of the fixed scroll, a processing error of the fixed scroll is prevented thereby to reduce a production cost. Also, since foreign materials generated when a refrigerant channel is processed does not remain in a valve hole, the valve member is prevented from being mal-operated, a productivity is enhanced, and a fabrication cost is reduced.

Abstract: An apparatus for preventing backflow of a gas of a scroll compressor includes: a hermetic container provided with a discharge pipe through which a gas is discharged; a fixed scroll fixedly coupled in the hermetic container; an orbiting scroll orbiting in meshing engagement with the fixed scroll to compress gas together with the fixed scroll; and a backflow preventing means for preventing backflow of a gas discharged through the discharge pipe. Therefore, a gas compressed by an orbiting movement of the fixed scroll and the orbiting scroll is smoothly discharged to the discharge pipe through the hermetic container during operation of the compressor, and the gas discharged to the discharge pipe is prevented from backflowing into the hermetic container when the operation is stopped.

Abstract: An apparatus for preventing backflow of a gas of a scroll compressor includes: a hermetic container provided with a discharge pipe through which a gas is discharged; a fixed scroll fixedly coupled in the hermetic container; an orbiting scroll orbiting in meshing engagement with the fixed scroll to compress gas together with the fixed scroll; and a backflow preventing means for preventing backflow of a gas discharged through the discharge pipe. Therefore, a gas compressed by an orbiting movement of the fixed scroll and the orbiting scroll is smoothly discharged to the discharge pipe through the hermetic container during operation of the compressor, and the gas discharged to the discharge pipe is prevented from backflowing into the hermetic container when the operation is stopped.

Abstract: A scroll compressor of simple structure and low production cost which can be protected when abnormal pressure state or abnormal temperature state of the compressor comprises: a sealed casing including a first chamber for forming a low pressure and a second chamber for forming a high pressure which are divided by a separating panel; a driving unit built in the casing for generating a driving force; a compressed unit connected to the driving unit via a rotating shaft for compressing and discharging fluid when the driving unit is operated; and a protecting device mounted on one side of the separating panel for bypassing the fluid of high pressure or of high temperature in the second chamber to the first chamber when a pressure difference or temperature difference between the first and second chambers is larger than a set value.

Abstract: A scroll compressor of simple structure and low production cost which can be protected when abnormal pressure state or abnormal temperature state of the compressor comprises: a sealed casing including a first chamber for forming a low pressure and a second chamber for forming a high pressure which are divided by a separating panel; a driving unit built in the casing for generating a driving force; a compressed unit connected to the driving unit via a rotating shaft for compressing and discharging fluid when the driving unit is operated; and a protecting device mounted on one side of the separating panel for bypassing the fluid of high pressure or of high temperature in the second chamber to the first chamber when a pressure difference or temperature difference between the first and second chambers is larger than a set value.