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公开(公告)号：JPS6467552A
公开(公告)日：1989-03-14
申请号：JP22235487
申请日：1987-09-04
Applicant: MATSUSHITA REFRIGERATION
Inventor： KURACHI MASAO , SOAN ISAO
Abstract: PURPOSE:To enable execution of comfortable heating operation and to improve heating efficiency, by a method wherein, when a difference between high and low temperatures in a room to be air-conditioned is increased to a value higher than a given value during heating operation, a solenoid valve situated in a capacity control bypass for heating is repeatedly opened and closed at intervals of a given time. CONSTITUTION:During heating operation, high temperature high pressure gas discharged from a compressor 1 is fed from a 4-way valve 2 to an indoor unit 9 through a connection piping 13b and radiated and condensed by a heat exchanger 10 on the indoor side to perform heating. The gas is fed to an outdoor unit 8 through a check valve 12 and a connection piping 13a and is reduced in a pressure by means of a pressure reducing device 4 for heating. The heat of the gas is absorbed by means of a heat exchanger 3 on the outdoor side to vaporize the gas, which is circulated to the compressor 1 through the 4-way valve 2 and an accumulator 6. In this case, when a difference between high and low temperatures in a room 14 to be air-conditioned detected by means of a temperature difference detecting device 15 is increased to a value higher than a given value, repeated operation is performed in which a solenoid valve 7a situated in a control bypass 7 for heating is opened for a given time by means of a control device 16 to reduce heating capacity of a system and reduce a discharge air temperature, after that, the solenoid valve 7a is closed for a given time to increase heating capacity and the discharge air temperature of the indoor unit 9 is increased.
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公开(公告)号：JPS63295880A
公开(公告)日：1988-12-02
申请号：JP13258087
申请日：1987-05-28
Applicant: MATSUSHITA REFRIGERATION
Inventor： KURACHI MASAO , SOAN ISAO
Abstract: PURPOSE:To enhance operation efficiency by forming a refrigerant cycle with a smaller capacity compressor capable of 2-stage capacity control and a larger capacity compressor and numerically specifying a capacity ratio. CONSTITUTION:Refrigerant from a smaller capacity 1st compressor 1 capable of changing its number of poles and a larger capacity 2nd compressor 2 capable of changing its number of poles forming a refrigerant cycle is sent to indoor cycles 8a-8d. Specifying the capacity ratio between both of the compressors 1 and 2 to be 2:3 and start-stop controlling the both compressors 1 and 2, the number of stages of capacity control is made to be 8. As a result, an outdoor unit of an operation capacity commensurate with that of the indoor unit can be arranged.
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公开(公告)号：JPS63204082A
公开(公告)日：1988-08-23
申请号：JP3508787
申请日：1987-02-18
Applicant: MATSUSHITA REFRIGERATION
Inventor： KURACHI MASAO , SOAN ISAO
IPC: F25B41/06
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公开(公告)号：JPS6467554A
公开(公告)日：1989-03-14
申请号：JP22235387
申请日：1987-09-04
Applicant: MATSUSHITA REFRIGERATION
Inventor： KURACHI MASAO , SOAN ISAO
Abstract: PURPOSE:To enable execution of comfortable operation and to improve heating efficiency, by a method wherein, when a difference between high and low temperatures in a room to be air-conditioned exceeds a given value during heating operation, a blast amount of a blower on the outdoor side is repeatedly changed in a given range at intervals of a given time. CONSTITUTION:During heating operation, high temperature high pressure gas discharged from a compressor 1 is fed from a 4-way valve to an indoor unit 8 through a connection piping 12b and is radiated and condensed by means of a heat exchanger 9 on the indoor side to perform heating, The gas is fed to an outdoor unit 7 through a check valve 11 and a connection piping 12a and the heat of the gas is absorbed and the gas is vaporized by means of a heat exchanger 3 on the adore side the pressure of which is reduced by means of a pressure reducing device 4, and the gas is circulated to the compressor 1 through a 4-way valve 2 and an accumulator 6. In this case, when a difference between high and low temperatures in a room 13 to be air-conditioned detected by a temperature difference detecting device 14 exceeds a given value, repeat operation is performed, in which through reduction of heating capacity of a system by reducing a blast amount of a blower 3a on the outdoor side for a given time by means of a control device 15, discharge air temperature is reduced, and after that by increasing a blast amount of the blower 3a on the outdoor side for a given time, heating capacity is increased to increase the discharge air temperature of the indoor unit 8.
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公开(公告)号：JPS6467551A
公开(公告)日：1989-03-14
申请号：JP22234987
申请日：1987-09-04
Applicant: MATSUSHITA REFRIGERATION
Inventor： KURACHI MASAO , SOAN ISAO
Abstract: PURPOSE:To enable execution of comfortable heating operation and to improve heating efficiency, by providing a temperature difference detecting device, capable of detecting a difference between high and low temperatures in a room to be air-conditioned during heating operation, and a control device to repeatedly change a pressure reducing amount of a pressure reducing device for heating in a given range at intervals of a given time. CONSTITUTION:High temperature and high pressure gas discharged from a compressor 1 during heating operation is fed from a 4-way valve 2 to an indoor unit 8 through a connection piping 12b and is radiated and condensed by means of a heat exchanger 9 on the indoor side to perform heating. The gas is fed to an indoor unit 7 through a check valve 11 and a connection piping 12a and is reduced in a pressure by a pressure reducing device 4 for heating. The gas is radiated and vaporized by a heat exchanger 3 on the outdoor side, and is circulated to the compressor 1 through the 4-way valve 2 and an accumulator 6. In high and low temperature in a room 13 to be air-conditioned detected by means of a temperature difference detecting device 14 is increased to a value higher than a given value, repeat operation, is performed in which the opening of the pressure reducing device 4 for timewise heating is reduced for a given time by means of a control device 15 to a given range,after that, the opening in increased for a given time to a given range.
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Patent Agency Ranking
公开(公告)号：JPS62256319A
公开(公告)日：1987-11-09
申请号：JP9967986
申请日：1986-04-30
Applicant: MATSUSHITA REFRIGERATION
Inventor： KUBOKI TOSHIO , SOAN ISAO , YANAGAWA YASUO
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公开(公告)号：JPS6467553A
公开(公告)日：1989-03-14
申请号：JP22234887
申请日：1987-09-04
Applicant: MATSUSHITA REFRIGERATION
Inventor： KURACHI MASAO , SOAN ISAO
Abstract: PURPOSE:To enable execution of comfortable heating operation and to improve a heating effect, by a method wherein, when a difference between high and low temperatures in a room to be air-conditioned exceeds a given value during heating operation, capacity of a capacity control compressor is repeatedly changed in a given range at intervals of a given time. CONSTITUTION:During heating operation, high temperature high pressure gas discharged from an inverter compressor 1 is fed from a 4-way valve 2 to an indoor unit 8 through a connection piping 12b and is radiated and condensed by means of a heat exchanger 9 on the indoor side to perform heating. The gas is fed to an outdoor unit 7 through a check valve 11 and a connection piping 12a, and the heat thereof is absorbed the gas is vaporized by means of a heat exchanger 3 on the outdoor side the pressure of which is reduced by means of a pressure reducing device 4 for heating. The gas is circulated to the inverter compressor 1 through the 4-way valve 2 and an accumulator 6. In this case, when a difference between high and low temperatures in a room 13 to be air-conditioned detected by a temperature difference detecting device 14 exceeds a given value, repeat operation is performed in which frequency to the inverter compressor is increased for a given time by means of a control device 15 to increase discharge air temperature and after that frequency is decreased for a given time to decrease discharge air temperature.
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公开(公告)号：JPS63315850A
公开(公告)日：1988-12-23
申请号：JP15066787
申请日：1987-06-17
Applicant: MATSUSHITA REFRIGERATION
Inventor： TSUKAMOTO HIROSHI , SOAN ISAO
IPC: F24F11/02
Abstract: PURPOSE:To cause a drain pump to control the discharge of drain water at the most suitable position by installing an electrode type sensor detecting the water level of the drain water in carrying current through the drain water in the main body of the drain pump. CONSTITUTION:When the water level of drain water reaches an electrode type sensor 18 for control, minute current flows from an electrode 18a to an electrode 18b through the drain water and a relay 20 is operated to drive a drain pump 15 and the drain water is discharged. When the water level of the drain water reaches an electrode type sensor 19 for stopping in an emergency, minute current flows from the electrode 18a to the sensor 19 through the drain water to stop the operation of an air conditioner. Thereby, since the sensors 18 and 19 are installed at the part of the suction part 15a of the pump 15, the operation at the most suitable position peculiar to the pump 15 itself can be carried out easily.
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公开(公告)号：JPS63295879A
公开(公告)日：1988-12-02
申请号：JP13257887
申请日：1987-05-28
Applicant: MATSUSHITA REFRIGERATION
Inventor： SOAN ISAO , NOMURA SHIGETOSHI
Abstract: PURPOSE:To make an inverter unnecessary by forming a refrigerant cycle with a constant speed type compressor and a pole-change compressor to control delivery according to the load fluctuation. CONSTITUTION:A refrigerant cycle is formed with a constant speed type compressor 1a and a compressor 1b having an electric motor of variable pole number of 2 and 4. Changing the number of poles of the variable capacity type compressor 1b by starting and stopping the constant speed type compressor 1a, various delivery control (25%-100% capacity operation) is performed. As a result, unlike conventional delivery control with an inverter, various delivery control with a reduced cost is possible.
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公开(公告)号：JPS62238953A
公开(公告)日：1987-10-19
申请号：JP8155486
申请日：1986-04-09
Applicant: MATSUSHITA REFRIGERATION
Inventor： KURACHI MASAO , SOAN ISAO
IPC: F25B13/00
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