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公开(公告)号：JPH04265693A
公开(公告)日：1992-09-21
申请号：JP2730491
申请日：1991-02-21
Applicant: MATSUSHITA REFRIGERATION
Inventor： NISHIO YASUNORI , OGAWA KEIJI , HAMAOKA KOJI , KAKITA KENICHI
Abstract: PURPOSE:To provide a controller for air-conditioner comprising an inverter wherein surge current flowing into an electrolytic capacitor is limited upon turn ON of inverter power supply, device for charging the electrolytic capacitor is reduced in size, useless power consumption is prevented and safety operation is ensured. CONSTITUTION:An electromagnetic contactor 2, an inverter control means 10', a voltage detecting means 11 and a relay driving means 12' are provided while furthermore a surge current limiting circuit 18 comprising a surge current limiting resistor 15, a relay 16 and a diode 17 is provided in order to limit surge current upon turn ON of power thus charging a capacitor smoothly.
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公开(公告)号：JPH04165994A
公开(公告)日：1992-06-11
申请号：JP28872990
申请日：1990-10-26
Applicant: MATSUSHITA REFRIGERATION
Inventor： HAMAOKA KOJI , OGAWA KEIJI , KAKITA KENICHI , NISHIO YASUNORI
Abstract: PURPOSE:To eliminate useless power consumption by providing a surge current limiting circuit connected through a current limiting resistor and a diode with a converter circuit, and a capacitor voltage detecting means, thereby detecting abnormality in the surge current limiting circuit. CONSTITUTION:A surge current limiting resistor 14 has one end connected with phase R of an AC commercial power supply and the other end connected with the common terminal of a contact 15a in a surge current limiting relay 15. NO terminal of the contact 15a is connected with the anode terminal of a diode 16 having cathode terminal connected with the positive pole of a capacitor 6. The contact 15b of the surge current limiting relay 15 has common terminal connected with phase S of the AC commercial power supply 1 and NO terminal connected with phase S input part of a converter circuit 3. An abnormality detecting means 18 receives an output signal S11 from a voltage detecting means 11 and a relay driving output S9 from an inverter control means 10 and detects abnormality such as failure of the current limiting relay 15.
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公开(公告)号：JPH04124548A
公开(公告)日：1992-04-24
申请号：JP24559190
申请日：1990-09-13
Applicant: MATSUSHITA REFRIGERATION
Inventor： HAMAOKA KOJI , OGAWA KEIJI , NISHIO YASUNORI , KAKITA KENICHI
Abstract: PURPOSE:To enhance comfortable feeling by detecting input or output current, changing a current preset value in conformity with an open air temperature based on a direct relation between the open air temperature and the output current of an inverter, and making the most use of the capacity of said inverter circuit. CONSTITUTION:A frequency command means 17 enters its command frequency fs. Then, an open air temperature T at which an outdoor air conditioner 12 is installed, is detected by an outdoor temperature detection means 18. The detected temperature is determined by a current setting means 19. Based on the result of the determination is set a current value which serves as a reference value. When the open air temperature >T1, the current value I1 is set. When T1 I2>I3, T2>T1. Then, the actually flowing current in an inverter circuit 15 is detected. Then, comparison is made between the preset current value Is and the detected current value Id. When Id
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公开(公告)号：JP2002286346A
公开(公告)日：2002-10-03
申请号：JP2001092512
申请日：2001-03-28
Applicant: MATSUSHITA REFRIGERATION
Inventor： MACHIDA KAZUHIKO , ODA MASATAKA , KUBOTA YOSHITAKA , NISHIO YASUNORI , HAMADA KAZUYUKI
Abstract: PROBLEM TO BE SOLVED: To provide a cooling/heating container exhibiting excellent safety in which firing of combustible refrigerant is prevented upon leakage, and a vending machine comprising that container. SOLUTION: The cooling/heating container comprises means 4 for cooling an article B to be cooled through a refrigeration cycle formed by a compressor 4a, a condenser 4b, a throttle 4c and an evaporator 4h annularly and sequentially coupled through piping with use of combustible refrigerant, means 5 for heating an article A to be heated, a partitioner 3 for partitioning a containing compartment 10 vertically, and the evaporator 4h disposed below a cooling compartment 12. The heating means 5 and the driving source 13a of a carrying means 6 are disposed collectively above a heating compartment 11 in order to prevent firing of refrigerant upon leakage.
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公开(公告)号：JP2002286279A
公开(公告)日：2002-10-03
申请号：JP2001092513
申请日：2001-03-28
Applicant: MATSUSHITA REFRIGERATION
Inventor： NISHIO YASUNORI , SHIMIZU TOYOKAZU
IPC: F24F11/02
Abstract: PROBLEM TO BE SOLVED: To eliminate a trouble of redundancy with an existing sensor and accurately measure an air conditioning machine. SOLUTION: A selection whether the existing sensor of the air conditioner is used or another sensor belonging to an interface unit with sensor IFU1 is used is switched by an outdoor switching means 33 and an indoor switching means 73 whereby previous confirmation can be effected and the working man hours of a serviceman can be saved upon improving the accuracy of a sensor or elongating the sensor when the existing sensor is installed already. On the other hand, the operating data of the air conditioner can be measured employing a communication wire whereby a first measuring instrument Cnt1 is not required to be installed outdoor and the operating data of the air conditioner can be measured correctly without being affected by an outdoor temperature or the configuration of installation.
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Patent Agency Ranking
公开(公告)号：JP2000304388A
公开(公告)日：2000-11-02
申请号：JP11590299
申请日：1999-04-23
Applicant: MATSUSHITA REFRIGERATION
Inventor： NISHIO YASUNORI , KURACHI MASAO
IPC: F25B49/02
Abstract: PROBLEM TO BE SOLVED: To prevent the deterioration of comfortableness and the breakage of a compressor due to the performance deterioration of an air conditioner by comparing the piping temperature near the outlet of the compressor when a refrigerant is insufficient while the conditioner is operated for cooling with the piping temperature near the output of the compressor at normal time calculated through cycle simulation and accurately discriminating the insufficiency of the enclosed quantity of the refrigerant under all conditions of installation based on the correlation between the compared results and the quantity of the refrigerant enclosed in a refrigerating cycle. SOLUTION: An air conditioner is provided with an analyzing means 13 which simulates the refrigerating cycle characteristics of the air conditioner in a normal refrigerating cycle state at outdoor and indoor temperatures, an enclosed refrigerant quantity discriminating means 14 which discriminates the insufficiency of the enclosed quantity of the refrigerant based on the correlation between the piping temperature at the outlet of a compressor digitized by means of a temperature computing means 11 and the piping temperature at the outlet of the compressor at normal time calculated by means of the analyzing means 13, and a timer means 9 which periodically actuates the means 13 and 14. Therefore, the deterioration of comfortableness and the breakage of the compressor due to a decline in performance of the air conditioner can be prevented by accurately discriminating the insufficiency of the refrigerant under all conditions of installation.
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公开(公告)号：JPH09152225A
公开(公告)日：1997-06-10
申请号：JP31418295
申请日：1995-12-01
Applicant: MATSUSHITA REFRIGERATION
Inventor： MACHIDA KAZUHIKO , AOYAMA SHIGEO , HIROSE KENJI , NISHIO YASUNORI
Abstract: PROBLEM TO BE SOLVED: To make it possible to suitably operate so as to satisfy user's need by conducting thermal storage operation necessary for next day when a heating operation is requested in a night thermal storage operation time zone in a thermal storage type air conditioner in which a heat source side refrigerating cycle is communicated with a user side refrigerating cycle via a thermal storage tank. SOLUTION: The thermal storage type air conditioner comprises an outdoor unit 1', a pump unit PU, indoor units 13a, 13b and a thermal storage tank STR. When a thermal storage heat exchanger 8a is used at night, night thermal storage mode detecting means 16 detects the thermal storage mode for storing heat in the tank STR for next day. When the heating operation request is detected by indoor unit heating operation detecting means 17, combined operation deciding means 18 judges the need of the combined operation of thermal storage operation and heating operation. A thermal storage heat exchanger 8a is operated as a condenser by heat source side thermal storage circuit drive means 19, and an auxiliary heat exchanger 7a is operated as a condenser by heat source side refrigerant heat exchange circuit drive means 20.
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公开(公告)号：JPH09126564A
公开(公告)日：1997-05-16
申请号：JP28127295
申请日：1995-10-30
Applicant: MATSUSHITA REFRIGERATION
Inventor： NISHIO YASUNORI , HIROSE KENJI , AOYAMA SHIGEO , MACHIDA KAZUHIKO
Abstract: PROBLEM TO BE SOLVED: To start a system efficiently by optimizing a refrigerant shunt of a utilization side refrigerating cycle at the start of a cooling/heat radiating operation in a heat storage type air conditioning equipment comprising a plurality of outdoor units and a heat storage cell. SOLUTION: A controller 21 is provided to detect a stagnation value of a refrigerant to a heat storage cell STR of a utilization side refrigerating cycle at the start of a cooling/heat radiating operation and determines by computation an upper limit value of the opening of a plurality of second flow rate valves RV2. A refrigerant shunt of the utilization side refrigerating cycle is optimized automatically at the start of the cooling/heat radiating operation. This eliminates insufficiency in the circulation quantity of the refrigerant to prevent a drop in the capacity of a heat source refrigerating cycle and to avoid the breakage of equipment thereby achieving a comfortable room environment as quickly as possible with efficient starting.
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公开(公告)号：JPH08271016A
公开(公告)日：1996-10-18
申请号：JP7749095
申请日：1995-04-03
Applicant: MATSUSHITA REFRIGERATION
Inventor： NISHIO YASUNORI , NAKAGAWA NOBUHIRO , NAKATANI KAZUO
IPC: F24F11/02
Abstract: PURPOSE: To prevent a comfortable environment from being deteriorated during a defrosting operation and to improve the comfortable environment by a method wherein the defrosting operation at an outdoor side heat exchanger is performed after a comfortable environment of indoor environment during heating operation is attained. CONSTITUTION: This air conditioner is comprised of a temperature sensor 17 for sensing an inlet path temperature of an outdoor side heat exchanger 5, a defrosting operation control means 14 for judging a frosted condition of the outdoor side heat exchanger 5 and outputting a defrosting operation starting completion signal and an indoor or outdoor monitoring means 20 for monitoring if indoor devices 7a to 7c reach their own target temperatures and not starting the defrosting operation until all the indoor devices reach their target temperatures.
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公开(公告)号：JPH085183A
公开(公告)日：1996-01-12
申请号：JP13869594
申请日：1994-06-21
Applicant: MATSUSHITA REFRIGERATION
Inventor： NISHIO YASUNORI
Abstract: PURPOSE:To optimize a refrigerant distribution at the time of starting a user side refrigerating cycle, to prevent the capacity decrease of a heat source side refrigerant cycle and the damage of an apparatus and to provide comfortable environment in a room by providing the upper limit value of an outdoor flow valve in a plurality of heat source side refrigerating cycles. CONSTITUTION:The multi-room split type cooler/heater comprises opening upper limit value calculating means 19 for averaging the values of output supercooling degrees of second auxiliary heat exchangers 9a, 9b and deciding the upper limit of outdoor flow valves 11a, 11b from the average value and the difference of the superheat degrees of outlet SC detectors 15a, 15b.
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