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1. 发明专利

JPH02217577A HEAT PUMP TYPE SNOW-MELTING DEVICE 失效
公开(公告)号：JPH02217577A
公开(公告)日：1990-08-30
申请号：JP3694389
申请日：1989-02-16
申请人： TOHOKU ELECTRIC POWER CO , MITSUBISHI ELECTRIC CORP
发明人： MINAGAWA TSUNEHIKO , YOSHIDA YORIO , ENDO MAKOTO
IPC分类号： E04H9/16
摘要： PURPOSE:To make a device serve a double purpose of cooling and heating and to improve usability thereof by incorporating a four-way selector valve and a heat exchanger into a refrigerant circuit, and by producing circulation by a circulating pump through a circuit connecting the heat exchanger and a snow-melting panel. CONSTITUTION:A four-way selector valve 9 for switching the direction of flow for refrigerant gas and a heat exchanger 8 controlling air conditioning at the inside of a room are incorporated into a refrigerant circuit. Then circulation through a circuit connecting the heat exchanger 8 and a snow-melting panel 5 is made by a circulating pump 10. During the wintertime, the snow-melting panel 5 is put into operation, while the device is run for heating operation. In the summertime, cooling operation is made possible by switching the direction of flow of the same refrigerant, while using the snow-melting panel 5 as a radiator.

2. 发明专利

JPS61184352A HEAT PUMP TYPE AIR CONDITIONER 失效
公开(公告)号：JPS61184352A
公开(公告)日：1986-08-18
申请号：JP2471985
申请日：1985-02-12
申请人： TOHOKU ELECTRIC POWER CO , MITSUBISHI ELECTRIC CORP
发明人： YAMAGUCHI ZENKICHI , MINAGAWA TSUNEHIKO , ISONO KAZUAKI , UMEMURA HIROYUKI
IPC分类号： F24F11/02 , F25B1/00 , F25B49/00
摘要： PURPOSE:To obtain a heat pump type air conditioner operated normally even at low ambient air temperature by a method wherein the circumference tempera ture of electron parts is detected by a temperature detector and the device controlling the conduction of an electric heating device is provided. CONSTITUTION:In case the circumference temperature of a base plate 41 is higher than the lower limit temperature of the normal operation temperature at electron parts, a thermo-lead-switch is in closed condition. When an operation switch is closed in this condition, a magnetic contactor 35 is conducted to close a contact 35a. Accordingly, a micro-computer control circuit 3 is conducted through an insulating transformed 39 and the circuit 3 starts the operation. In case the circumference temperature of the base plate 41 is lower than the lower limit temperature of the normal operation temperature at the electron parts, the electric heating device 32 is conducted to heat the base plate 41. When it arrives at the lower limit temperature or above of the normal operation temperature, the thermo-lead-switch is closed while the magnetic contactor 35 is conducted and the contact 35a is closed, therefore, the conduction for the electric heating device 32 is cut and the micro-computer control circuit 3 may be conducted to start the operation.

3. 发明专利

JPS61184350A DEFROST METHOD FOR AIR CONDITIONER 失效
公开(公告)号：JPS61184350A
公开(公告)日：1986-08-18
申请号：JP2471885
申请日：1985-02-12
申请人： TOHOKU ELECTRIC POWER CO , MITSUBISHI ELECTRIC CORP
发明人： YAMAGUCHI ZENKICHI , MINAGAWA TSUNEHIKO , UMEMURA HIROYUKI
IPC分类号： F24F11/02
摘要： PURPOSE:To provide the defrost method of an air conditioner to enable to effect a sure defrost operation even in case the humidity conditions of ambient air have been changed by a method wherein the defrost conditions to start the defrost operation are requested by the output of a temperature detector at refrigerant piping and the output of a humidity detector detecting an absolute humidity of the ambient air. CONSTITUTION:The absolute humidity of the ambient air is detected by inputting from the humidity detector 16 after starting of the heating operation. An optimum defrost unoperation time (t1) is obtained from a defrost unoperation time reference table due to the absolute humidity memorized in memory 21 previously in accordance with the absolute humidity detected. The higher the absolute humidity becomes, the larger the amount of the defrost becomes, therefore, the set time is set in a short time. The heating operation is continued till the heating operation time (t0) arrives at the defrost unoperation time (t1), when it has arrived them, the pipings temperature are detected by inputting of the temperature detector 10. In case it is comfirmed that the detecting temperature is lower than the set temperature, an excitation of a four-way valve coil is released to change the four-ways valve 2 and the defrost operation may be started.

4. 发明专利

JPS62134457A DEVICE TO CONTROL ELECTRIC WATER HEATER 失效
公开(公告)号：JPS62134457A
公开(公告)日：1987-06-17
申请号：JP27446285
申请日：1985-12-06
申请人： TOHOKU ELECTRIC POWER CO , MITSUBISHI ELECTRIC CORP
发明人： MINAGAWA TSUNEHIKO , MORIYA SENTAROU , ITO YOSHIKAZU , KUBOTA HIDEJI , SAKURAI NOBUKATSU
IPC分类号： F24H1/18
摘要： PURPOSE:To prevent hot water in a water tank from being used up in case power failure happens to occur in the time zone when midnight power is supplied, by heating water at the maximum rate by effectively using the remaining time as soon as the power failure is recovered. CONSTITUTION:The water temperature in the lower part of a hot water tank 1 is detected by a temperature sensor 3. A water temperature and heated-water temperature determining means 4 determined the temperature in a feed water and the water temperature to be heated up from the detected value by the sensor 3. A processor 6 calculates the net heating time, the starting time of heating and the temperature to be heated up for an electric heater 2, based on the output from a demanded quantity of hot water setting means 5 and that from the water and heated-water temperature determining means 4. Besides a time switch 8 controls the supply of power from a power source 7 to the heater 2, and a signal detecting means 10 detects whether power is supplied by the power source 7 or not. When a power failure detecting means 11 detects a power failure from the output of a signal detecting means 10, a heater controlling means 12 controls the heater 2, based on the result calculated by the processor 6 and the output from the power failure detecting means 11. As a result, hot water being used up in the water tank 1 can be prevented.

5. 发明专利

JPH01196499A REGENERATIVE CONTAINER 失效
公开(公告)号：JPH01196499A
公开(公告)日：1989-08-08
申请号：JP1952788
申请日：1988-02-01
申请人： HITACHI BIRU SHISETSU ENG KK , HITACHI LTD , TOHOKU ELECTRIC POWER CO
发明人： YONEMORI TADAMITSU , OKAMOTO HARUTOSHI , FUKUSHIMA YUKIO , SEKIGUCHI KYOICHI , HIGO YUZURU , ONODA TOSHISUKE , YANATORI MICHIO , MINAGAWA TSUNEHIKO , YAMAGUCHI ZENKICHI
IPC分类号： F28D20/00 , F28D20/02
摘要： PURPOSE:To enhance the regenerative efficiency by setting, in piling regenerative containers for the use, the parallel side plates of each unit horizontally and by putting the tubular members of the units out of alignment with each other vertically. CONSTITUTION:Each unit of regenerative containers is provided with a hollow ring- shaped receptacle for seed crystals whose inside diameter is larger than the periphery of the main body, the main body and the receptacle being arranged concentrically and substantially on a common plane, and with a ring-shaped passageway by which the outer periphery of the main body and the inner periphery of the receptacle for seed crystals are connected and communicate. Two through tubes 6c are passed through each regenerative container at points other than the center O, and any two units laid adjacently to each other vertically are arranged out of alignment, one shifted by an angle of 90 deg. from the other around their vertical central axis. As a result, the hot medium flows as shown by arrows a, a', b, b', c, c', d, d' and e, e' so that it comes in even contact with the heating surfaces of the main bodies 6 of the regenerative containers as if flows past them. With the tubular members arranged out of alignment, the hot medium follows a zigzag course so as to heat all of the heating surfaces of the regenerative containers.

6. 发明专利

JPH01268491A DRIVER OF COMPRESSOR BY TWO POWER SOURCES 失效
公开(公告)号：JPH01268491A
公开(公告)日：1989-10-26
申请号：JP9366188
申请日：1988-04-15
申请人： TOHOKU ELECTRIC POWER CO , MATSUSHITA ELECTRIC IND CO LTD
发明人： MINAGAWA TSUNEHIKO , YAMAGUCHI ZENKICHI , MIURA KENICHIRO
IPC分类号： H02P27/06
摘要： PURPOSE:To prevent an excess current from flowing to a switch at the time of switching power sources by switching a switch connected to an AC power source and a switch connected to a DC power source in a no current state. CONSTITUTION:When a DC power source 3 is not started, its state is judged by a controller 11 to close a switch 2. In this case, the output of an AC power source 1 is supplied to an inverter 6 through a power reactor 5. When the power source 3 is started in this state, the inverter 6 is stopped by the controller 11. After the switch 2 is opened, a switch 4 is closed to supply the output of the power source 3 to the inverter 6. When the power source 3 is stopped, the inverter 6 is stopped, the switch 4 is opened, and the switch 2 is closed to supply the output of the power source 1 to the inverter 6.

7. 发明专利

JPH01268489A DRIVER OF COMPRESSOR BY TWO POWER SOURCES 失效
公开(公告)号：JPH01268489A
公开(公告)日：1989-10-26
申请号：JP9365988
申请日：1988-04-15
申请人： TOHOKU ELECTRIC POWER CO , MATSUSHITA ELECTRIC IND CO LTD
发明人： MINAGAWA TSUNEHIKO , YAMAGUCHI ZENKICHI , MIURA KENICHIRO
IPC分类号： H02P27/06
摘要： PURPOSE:To prevent an excess current from flowing to a switch and an excess load from being applied to a compressor by switching a switch connected to an AC power source and a switch connected to a DC power source in a no current state, and stopping An inverter when a DC voltage value exceeds a predetermined value. CONSTITUTION:When a DC power source 3 is not started, its state is judged by a controller 11 to close a switch 2. In this case, the output of an AC power source 1 is supplied to an inverter 6 through a power reactor 5. When the power source 3 is started in this state, the inverter 6 is stopped by the controller 11. After the switch 2 is opened, a switch 4 is closed to supply the output of the power source 3 to the inverter 6. On the other hand, when the detected value of current detector 12, the inverter 6 is stopped.

8. 发明专利

JPH01196497A REGENERATIVE CONTAINER 失效
公开(公告)号：JPH01196497A
公开(公告)日：1989-08-08
申请号：JP1952588
申请日：1988-02-01
申请人： HITACHI BIRU SHISETSU ENG KK , HITACHI LTD , TOHOKU ELECTRIC POWER CO
发明人： YONEMORI TADAMITSU , OKAMOTO HARUTOSHI , FUKUSHIMA YUKIO , SEKIGUCHI KYOICHI , HIGO YUZURU , ONODA TOSHISUKE , YANATORI MICHIO , MINAGAWA TSUNEHIKO , YAMAGUCHI ZENKICHI
IPC分类号： F28D20/00 , F28D20/02
摘要： PURPOSE:To shorten the time for discharging the latent heat, to make it easy to separate the hot medium from the cooling fluid, and, moreover, to allow the containers to be piled when used by forming a hollow ring-shaped receptacle for seed crystals whose outside diameter is smaller than the inside diameter of the main body of a regenerative container and by making the main body and the receptacle connected and communicate by a hollow ring-shaped passageway. CONSTITUTION:The hollow disk-shaped main body 6 of a regenerative container and a hollow ring-shaped receptacle 7 for seed crystals whose outside diameter is smaller than the main body are concentrically arranged substantially on a common plane and connected by a hollow ring-shaped passageway 8. The main body 6 of the regenerative container is packed with a regenerative material 2. At a part of the regenerative material a receptacle 7 for seed crystals is filled so that, upon cooling, the contents crystallize into seed crystal 4. The regenerative material 2 is in contact with seed crystals 4 at all points along its inner periphery and, when the heat is released, the crystals are allowed to grow by only short distances in the paths of their growth; therefore, the latent heat can be discharged in a short time. The regenerative containers can be joined in a pile by means of short cylindrical supporting rings 9.

9. 发明专利

JPS6433371A FORCED SNOW FALLING METHOD 失效
公开(公告)号：JPS6433371A
公开(公告)日：1989-02-03
申请号：JP19125187
申请日：1987-07-30
申请人： FUJISASH CO , TOHOKU ELECTRIC POWER CO
发明人： YOSHIOKA TERUO , GUNJI MITSUGI , USUKI MINORU , YOSHIDA YORIO , SATO FUJIO , MINAGAWA TSUNEHIKO
IPC分类号： E04H9/16
摘要： PURPOSE: To decrease the number of operation and the quantity of snow dropped, and to reduce cost and lengthen a lifetime by setting a space between a roof surface and a snow removing member at a specified value and at a value or less corresponding to the quantity of a snow cover on a roof in a limit, in which a building can resist safely. CONSTITUTION: Snow removing members 6 fixed into trucks 8 through L-shaped connecting members 10 are bridged between guide rails 3, 3 installed on both sides of the gable side of a roof 1 through mounts 11 for heap up in 25 cm while being crossed over the rails 3 and being extended even to the gable side. Spaces in approximately 30 cm obtained by adding the height of the mounts 11 to spaces in approximately 5 cm among the conventional roof 1 surface and the snow removing members 6 are set in the quantity of a snow cover or less in a limit, in which the roof 1 can resist safely at that time. A person expects to a snowmelt by sunshine at daytime in sections of 30 cm left by snow dropping by driving the snow removing members 6 when the quantity of the snow cover reaches approximately 30 cm or more, and snow can be dropped extending over the whole surface of the roof 1 by the snow removing members 6 when the quantity of the snow cover exceeds 30 cm by a snow fall again.

10. 发明专利

JPS63315777A HEAT PUMP TYPE THAWING DEVICE 失效
公开(公告)号：JPS63315777A
公开(公告)日：1988-12-23
申请号：JP15122887
申请日：1987-06-19
申请人： HITACHI LTD , TOHOKU ELECTRIC POWER CO
发明人： OYAMA YUKIO , MASUDA TAKASHI , MINAGAWA TSUNEHIKO , YOSHIDA YORIO , SATO FUJIO
IPC分类号： E04H9/16 , F25B1/00 , F25B30/02

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