-
公开(公告)号：JPS5927386A
公开(公告)日：1984-02-13
申请号：JP13589782
申请日：1982-08-04
Applicant: Matsushita Refrigeration
Inventor： OGATA HIDEO
IPC: G07F9/02
-
公开(公告)号：JPS5354095A
公开(公告)日：1978-05-17
申请号：JP12907776
申请日：1976-10-26
Applicant: MATSUSHITA REFRIGERATION
Inventor： HIROSE KIYOSHI , OGATA HIDEO
-
公开(公告)号：JP2003185317A
公开(公告)日：2003-07-03
申请号：JP2001382679
申请日：2001-12-17
Applicant: MATSUSHITA REFRIGERATION
Inventor： UENO TAKAHIRO , TAKEUCHI KIYOTAKA , KUWAJIMA KATSUYUKI , IMAMIYA SEIJI , ASAKURA YOSHIAKI , OGATA HIDEO
IPC: F25D11/00
Abstract: PROBLEM TO BE SOLVED: To provide a thermoelectric device having stable cooling effect of high reliability and being easily assembled in a refrigerator and the like by reducing the assembling man-hours and being miniaturized. SOLUTION: In this thermoelectric device, a heat conductive member 20, a thermoelectric module 15, a leaf spring 22 and the like are mounted in a casing 16, and a cooling member 17 and a radiating member 18 are integrally assembled on both ends. An area of one of plate parts 40, 41 of the cooling member 17 or the radiating member 18 is determined to be approximately equal to or less than an area of a through-hole 60 formed on a wall 5 of the refrigerator 5. COPYRIGHT: (C)2003,JPO
-
公开(公告)号：JP2002174479A
公开(公告)日：2002-06-21
申请号：JP2000373904
申请日：2000-12-08
Applicant: MATSUSHITA REFRIGERATION
Inventor： HATANO SUSUMU , OKAMOTO YASUYUKI , OGATA HIDEO , HAYASHI YOSHIHARU
Abstract: PROBLEM TO BE SOLVED: To provide a cooling system which prevents the increase in the quantity of power consumption and suppresses the waste of energy, by indicating the user that a filter is clogged, and removing the dogging of a radiator or the filter. SOLUTION: In case that the voltage of a thermoelectric member voltage detecting means 29 for detecting the drive voltage of a thermoelectric member 23 is higher than the reference voltage values within a reference data storage means being set for every detection temperature of an outside air temperature detection means 26, an operation controller 27a judges that it is over the reference value of the quantity of power consumption if the drive voltage of the thermoelectric member 23 at some outside air temperature gets over the reference voltage, and informs the user that the filter 32 is clogged by means of a filter clogging indication means 30.
-
公开(公告)号：JP2000310467A
公开(公告)日：2000-11-07
申请号：JP11763899
申请日：1999-04-26
Applicant: MATSUSHITA REFRIGERATION
Inventor： OGATA HIDEO , TOKUNAGA SHIGEOMI
IPC: F25D11/00
Abstract: PROBLEM TO BE SOLVED: To provide a thermoelectric refrigerator capable of realizing a long term lifetime by reducing a thermal stress to be applied to a thermoelectric element. SOLUTION: The thermoelectric refrigerator comprises a power source 11 for supplying a voltage to be applied to a thermoelectric element 5, an indoor temperature detector 10 for detecting a temperature in the refrigerator cooled by the element 5, and a controller. In this case, the controller switches the voltage to be applied to the element 5 to the power source 11 in response to the indoor temperature, and controls a power to be applied to the element 5 at the switching voltage on a per capita basis. Thus, the voltage is switched so that a thermal stress applied to the element 5 is small and the stress becomes equivalent.
-
Patent Agency Ranking
公开(公告)号：JPH10313576A
公开(公告)日：1998-11-24
申请号：JP11929897
申请日：1997-05-09
Applicant: MATSUSHITA REFRIGERATION
Inventor： YOSHIDA IZUMI , OGATA HIDEO
Abstract: PROBLEM TO BE SOLVED: To enable inverter output with ripples compensated in a direct current part over the entire range of the operation of an air conditioning device, and maximum output even in ranges exceeding a base frequency, with respect to a capacitorless-type inverter which does not have any conventional filter circuit in the direct current part. SOLUTION: The device comprises a converter 2 which converts three-phase currents into direct currents; an inverter 3 supplied with power therefrom; a compressor 4 driven by the inverter 3; an input ripple rate calculating section 6 which calculates the ripple rate of a direct current part; a ripple compensation calculating section 7 which calculates an output voltage with the ripples of the direct current part taken into account, from the output of the input ripple rate calculating section 6 and the output of a fundamental output voltage calculating section 8 which calculates the present output voltage; an interphase voltage compensation calculating section 9 which compensates voltages between phases from the output of the ripple compensation calculating section 7, the voltage of the direct current part, and the output of the fundamental output voltage calculating section 8; and a PWM processing section 10 which outputs PWM waveform for driving the inverter 3 from the output of the interphase voltage compensation calculating section 9. As a result, the ripples of the direct current part can be compensated, and even if the base frequency is exceeded the maximum output voltage can be outputted in the capacitorless system.
-
公开(公告)号：JPH10205950A
公开(公告)日：1998-08-04
申请号：JP598597
申请日：1997-01-17
Applicant: MATSUSHITA REFRIGERATION
Inventor： OGATA HIDEO , OGAWA KEIJI , HAMAOKA KOJI , OGAWARA HIDEJI , YOSHIDA IZUMI , KUBOTA YOSHITAKA , KURIMOTO KAZUNORI
IPC: F25D11/00
Abstract: PROBLEM TO BE SOLVED: To provide an operation control device for a refrigerator in which the number of failures in starting a DC electric motor is reduced by a method wherein an energization of the DC electric motor is avoided in the case that a high load torque is applied to the DC electric motor at the time of starting energization of it. SOLUTION: Whether or not a freezing cycle 2 is made stable from a time just after stopping of a DC electric motor 7 to a state in which a compressor 5 can be energized is discriminated by a first freezing cycle stabilization discriminating means 17 on the basis of data attained from a discharged gas pressure sensor 16. In the case that it is not in a stable state, the compressor 5 is not energized even if an output signal of a refrigerator temperature control means 15 is produced and at the same time a refrigerator fan 6 is operated at a high speed. With such an arrangement as above, it is possible to avoid an energization of the DC electric motor 7 in the case that a high load is applied to the DC electric motor and so the number of failures in starting the DC electric motor becomes less.
-
公开(公告)号：JPH09201086A
公开(公告)日：1997-07-31
申请号：JP416896
申请日：1996-01-12
Applicant: MATSUSHITA ELECTRIC IND CO LTD , MATSUSHITA REFRIGERATION
Inventor： MATSUI KEIZO , TSUCHIYAMA YOSHIRO , ITO YOSHITERU , YOSHIOKA KANEHARU , OGATA HIDEO , YOSHIDA IZUMI , WATAKABE SHUSAKU
Abstract: PROBLEM TO BE SOLVED: To obtain a control apparatus by which the operating efficiency of a compressor as an object to be controlled can be controlled at a small current without setting the compressor to an unstable state by a method wherein an output voltage is adjusted in such a way that either an output current value or a power value is made minimum according to a power value in an inverter circuit. SOLUTION: The speed of rotation of a compressor 7 is controlled to a prescribed target value by a frequency control means, and the output voltage of an inverter circuit 1 is controlled. Thereby, either a power value or a current value is made minimum according to the change amount of power or the absolute value of power in the inverter circuit 1, and the compressor 7 is controlled. In addition, the increase or decrease direction of a voltage in the start of the control of a minimization processing operation is set correctly by an optimum- slip-amount storage means 11 in which the speed of rotation and the slip amount of the compressor 7 are stored at a time when the power value or the current value is made minimum, and a minimization control and processing operation 12 is performed in a short time.
-
公开(公告)号：JPH0979669A
公开(公告)日：1997-03-28
申请号：JP23962495
申请日：1995-09-19
Applicant: MATSUSHITA ELECTRIC IND CO LTD , MATSUSHITA REFRIGERATION
Inventor： TSUCHIYAMA YOSHIRO , MATSUI KEIZO , ITO YOSHITERU , YOSHIOKA KANEHARU , YOSHIDA IZUMI , OGATA HIDEO , WATAKABE SHUSAKU
IPC: F25B1/00
Abstract: PROBLEM TO BE SOLVED: To provide air conditioning equipment enabling easy attainment of a sufficient quantity of heat and execution of heating suitable to environmental conditions. SOLUTION: This equipment has a control means 3 which makes phases U and V of a three-phase AC motor 1 be at potentials being equal substantially to N of a DC power source 4 by turning transistors 16U and 16V ON and transistors 6U and 6V OFF and controls a phase W to be at a necessary potential by subjecting ON-OFF operations of transistors 6W and 16W to a pulse width control, at the time of stoppage of a compressor 2. Thereby the motor 1 can be heated uniformly without being overheated or heated insufficiently and a proper quantity of heating can be maintained.
-
公开(公告)号：JPH08285389A
公开(公告)日：1996-11-01
申请号：JP9068095
申请日：1995-04-17
Applicant: MATSUSHITA REFRIGERATION
Inventor： OGATA HIDEO , YOSHIDA IZUMI , WATAKABE SHUSAKU
Abstract: PURPOSE: To provide an inverter device used in an air conditioner in which an efficiency of the air conditioner is improved under an operation of the air conditioner in a voltage-frequency characteristic suitable for a loaded condition. CONSTITUTION: Enthalpy of a work of a compressor is calculated by an enthalpy calculator 19 on the basis of information of the compressor obtained by a discharging pressure sensor 15, a discharging temperature sensor 16, a suction pressure sensor 17 and a suction temperature sensor 18. A load torque is calculated with a load torque assuming device 2 on the basis of the calculated enthalpy. The most suitable voltage-frequency characteristic is determined by a voltage-frequency characteristic determining device 21 on the basis of the calculated characteristic and then a wave-form generating device 13 outputs a wave-form signal of a wave-form pattern of the most suitable voltage- frequency characteristic from the wave-form memory device 12 storing each of the different wave-form patterns of voltage-frequency characteristic to an inverter device 14.
-
-
-
-
-
-
-
-
-
Search Results
163
records
(took 0.025 seconds)
