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公开(公告)号：JP2507167B2
公开(公告)日：1996-06-12
申请号：JP28872990
申请日：1990-10-26
Applicant: MATSUSHITA REFRIGERATION
Inventor： HAMAOKA KOJI , OGAWA KEIJI , KAKITA KENICHI , NISHIO YASUNORI
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公开(公告)号：JPH06347115A
公开(公告)日：1994-12-20
申请号：JP13736093
申请日：1993-06-08
Applicant: MATSUSHITA REFRIGERATION
Inventor： NISHIO YASUNORI
Abstract: PURPOSE:To enable a fast response in cycle of cooling operation and an efficiency to be increased by a method wherein a frequency of a compressor is subjected to fuzzy inference under a rule based on a rule of experience in reference to a value of deviation between a sucking pressure of the compressor and its target pressure as well as a varying amount of the suction pressure and further the frequency is corrected and controlled in reference to a value of suction heating temperature. CONSTITUTION:There are provided a first frequency operation means 10 in which a pressure value of a pressure sensor 6 is inputted and a frequency during a normal controlling operation is operated and a second frequency operation means 11 for operation a frequency during start controlling operation. A frequency correction value is operated by a frequency correction value operating means 18 in reference to a suction heating temperature obtained through a fuzzy changing-over means 13 for changing-over a normal control and the start control in response to a state of pressure value and through a temperature sensor 17, and thereby a control of a capability variable compressor 2 is carried out by a controlling amount calculating means 15 in reference to the corrected frequency. With such as arrangement as above, it is possible to improve a fast response characteristic of cycle during cooling operation and efficiency and to realize an excessive energy saving value.
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公开(公告)号：JPH0682112A
公开(公告)日：1994-03-22
申请号：JP23676992
申请日：1992-09-04
Applicant: MATSUSHITA REFRIGERATION
Inventor： KINO AKIHIRO , NISHIO YASUNORI
Abstract: PURPOSE:To optimize distribution control of capacities among room machines by allowing the controlling of room electric expansion valves individually with the room machines of a multi-room type air-conditioning apparatus. CONSTITUTION:First and second overheating level control means 36 and 37, a room temperature control means 33, an overheating level detection means 34 and a variation of overheating level computing means 40 are arranged in a room machine 7. Moreover, first and second fuzzy reasoning means 39 are provided to switch the opening of a room electric expansion valve 28 by a fuzzy reasoning as results of computation from the first and second overheating level control means 36 and 37 and the room control means 33 based on outputs of the overheating level detection means 34 and the variation of overheating level computing means 40.
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公开(公告)号：JPH05126388A
公开(公告)日：1993-05-21
申请号：JP29117391
申请日：1991-11-07
Applicant: MATSUSHITA REFRIGERATION
Inventor： NISHIO YASUNORI , KURACHI MASAO , HIROSE KENJI
Abstract: PURPOSE:To prevent introduction of refrigerant to a stopped unit and to optimally branch it to outdoor and indoor units by maintaining the opening of an outdoor flow-rate valve when last one of outdoor units to be stopped is stopped, and stepwisely fully-closing the opening in response to a pressure difference of refrigerant conveying unit inlet/outlet at the time of stopping a plurality of units. CONSTITUTION:The multiroom air-conditioner comprises pressure sensing and calculating means 16, an operation monitor 17, outdoor unit control means 18a, 18b and outdoor flow-rate valve driving means 19a, 19b. At the time of stopping an outdoor unit, the means 18a receives a stop signal of last one unit or stop signals of a plurality of units from the monitor 17, instructs the means 19a whether an outdoor unit (f) is last one to be stopped or a plurality of units to be stopped. At the time of stopping the last one, the opening of an outdoor flow-rate valve 11a is maintained. At the time of stopping the plurality of units, the opening of the valve 11a is stepwisely fully-closed in response to input/output pressure difference of a refrigerant conveying unit 13.
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公开(公告)号：JPH04161097A
公开(公告)日：1992-06-04
申请号：JP28504890
申请日：1990-10-22
Applicant: MATSUSHITA REFRIGERATION
Inventor： KAKITA KENICHI , OGAWA KEIJI , NISHIO YASUNORI , HAMAOKA KOJI
Abstract: PURPOSE:To reduce power consumption by receiving a signal from an inverter control means and delivering signals to an electromagnetic contactor and a surge current limiting circuit while furthermore receiving a signal from the inverter control means and delivering a signal to an inverter circuit. CONSTITUTION:An inverter control means 10 directs a signal S10 through a relay driving means 12 to a surge current limiting relay 15 thus turning contacts 15a, 15b OFF. The relay driving means 12 then directs a signal S12, to an electromagnetic contactor 2 and turns the electromagnetic contactor 2 ON thus completing DC power supply to an inverter circuit 7. The inverter control means 10 then directs a signal S13, to an inverter base drive circuit 13 and generates an inverter waveform while furthermore directs a signal S14. from the inverter base drive circuit 13 to the inverter circuit 7. Consequently, the inverter circuit 7 inverts DC power into three-phase AC power which is then fed to a compressor 8 thus starting operation of the compressor 8.
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Patent Agency Ranking
公开(公告)号：JPH03269252A
公开(公告)日：1991-11-29
申请号：JP6885590
申请日：1990-03-19
Applicant: MATSUSHITA REFRIGERATION
Inventor： NISHIO YASUNORI , HIROSE KENJI
IPC: G01N27/02
Abstract: PURPOSE:To judge true freshness even if temperature is different in the same food material by measuring the temperature and the impedance of a vegitable or a fruit, and judging and displaying the freshness based on the measured value. CONSTITUTION:A temperature detecting means 11 is brought into contact with a vegitable or fruit 1 and the temperature is detected. The temperature is measured with a temperature measuring means 16. The measured value is divided into a plurality of temperature judging levels in a temperature judging means 17. An impedance detecting means 10 is brought into contact with the vegitable or fruit 1, and an AC voltage is applied. Thus the impedance is detected. The impedance is measured with an impedance measuring means 7. A freshness judging means 8 judges the freshness based on the values measured with the judging means 17 and the measuring means 7. The freshness is displayed on a freshness display means 9. Even if the freshness of the vegitable or fruit 1 is different, the correct freshness can be automatically judged by measuring the temperature and comparing the value of the impedance which is set in response to the temperature judging level beforehand with the value of the inputted impedance.
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公开(公告)号：JP2002330641A
公开(公告)日：2002-11-19
申请号：JP2001136034
申请日：2001-05-07
Applicant: MATSUSHITA REFRIGERATION
Inventor： MAKI EIKO , NISHIO YASUNORI
Abstract: PROBLEM TO BE SOLVED: To provide a system for accurately making a temperature control of the soil put in a vessel. SOLUTION: This soil environment control system has the following construction and mechanism: a heat exchange pipe 3 is piped inside the structure of a vessel 1 holding soil 2 so as to nearly uniformly cool or heat the soil 2 in the vessel 1 through the hot or cold water flowing through the pipe 3, a thermal insulating material 8 is set around the vessel 1, and a soil temperature control means 10 functions to control the heating means 4, the cooling means 5 and the conveying means 6 inside a cold/hot water feeder 7 so as to feed cold water into the pipe 3 when the temperature of the soil 2 sensed by a soil temperature sensing means 9 is higher than a preset soil temperature upper limit or feed hot water into the pipe 3 when the temperature of the soil 2 detected by the soil temperature sensing means 9 is lower than a preset soil temperature lower limit.
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公开(公告)号：JP2001141279A
公开(公告)日：2001-05-25
申请号：JP32262499
申请日：1999-11-12
Applicant: MATSUSHITA REFRIGERATION
Inventor： NISHIO YASUNORI
IPC: F24F11/02
Abstract: PROBLEM TO BE SOLVED: To solve the problem that a normal value is different and abnormality of an apparatus is not accurately decided due to a difference in, for example, an outside air temperature and the length of a refrigerant piping or a difference in installation environment, such as an operation horse power, since, in conventional constitution and during diagnosis of a trouble, a prestored Mollier chart during normality is compared with a detecting value during diagnosis of a trouble. SOLUTION: This diagnosing device comprises a first computing means 10 to execute circle simulation of refrigerating cycle characteristics in a normal state and calculate an operation normal value even when installation environment, such as an outside air temperature, is changed, a second computing means 12 to calculate a discharge temperature and the degree of a superheat during operation of an apparatus, and an oil amount diagnosing means 13 to decide abnormality. Thereby, under any installation condition, normality and abnormality are highly-precisely and accurately diagnosed, the trouble inclination of a compressor is detected early, and breakage is prevented from occurring.
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公开(公告)号：JPH10318588A
公开(公告)日：1998-12-04
申请号：JP13077397
申请日：1997-05-21
Applicant: MATSUSHITA REFRIGERATION
Inventor： NISHIO YASUNORI
Abstract: PROBLEM TO BE SOLVED: To predict the value of one temperature sensor of temperature sensors at the inlet and the outlet of an indoor heat-exchanger from the temperature detecting value of the other temperature sensor and pressure values from pressure sensors at the inlet and the outlet of a compressor, in a plurality of the temperature sensors of an indoor unit. SOLUTION: An air-conditioning device comprises a temperature computing means 41 to compute a signal from a temperature sensor arranged one at the vicinities of the input and the outlet of an indoor heat-exchanger; a pressure computing means 42 to compute a signal from a pressure sensor arranged in the vicinities of the inlet and the outlet of a compressor; a circulation amount computing means 43 to compute a refrigerant circulation amount from the pressure value of a pressure computing means; and a substitution temperature computing means 48 to compute the pressure difference of an indoor heat- exchanger 7 based on a refrigerant circulation amount computed by the refrigerant circulation computing means 43 and compute an outlet temperature when an inlet temperature is known and an inlet temperature when the outlet is known. This constitution detects the inlet and outlet temperatures of the indoor heat-exchanger by one temperature sensor.
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公开(公告)号：JPH10197086A
公开(公告)日：1998-07-31
申请号：JP5697
申请日：1997-01-06
Applicant: MATSUSHITA REFRIGERATION
Inventor： NISHIO YASUNORI , AOYAMA SHIGEO
Abstract: PROBLEM TO BE SOLVED: To achieve a modification of a user's side refrigerant flow rate control in a heat exchanger for radiation and a refrigerant vs refrigerant beat exchanger concerning heat storage type air conditioning equipment comprising a heat source side refrigerating cycle and an application side refrigeration cycle. SOLUTION: The travel of a first flow rate valve RV1 for controlling the flow rate of a refrigerant of a heat exchanger 13b for radiation in an application side refrigeration cycle is controlled by a first controller CNT1 comprising a first refrigerant status computing means Ref1, a first flow rate valve control means RVcont1 and a time detection means TM based on a value of the superecooling degree of an outlet refrigerant of the heat exchanger 13b for radiation. As a result, when the flow rate of a secondary side refrigerant at the heat exchanger 13b for radiation and at the refrigerant vs refrigerant heat exchanger HEX in the application side refrigeration cycle drops too extremely to secure the supercooling degree of the refrigerant, the first flow rate valve RV is opened by a specified travel to avoid the closure of the refrigerant. This enables maintaining of comfortableness during the period of cooling or heat radiating operation in the application side refrigerating cycle thereby accomplishing continuous operation.
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