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WO/1989/011174A1 |
Facade heating of a building is provided by mounting a polymeric self-regulating heater (12) within the framework surrounding the glass panels. An electronic earth leakage current breaker (2) is used with the heater (12) and can be subje...
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WO/1989/008300A1 |
An apparatus for supervising objects, such as hot plates and electrical stoves, with regard to overheating comprises at least one detector (9) for detecting conditions of overheating and a device (11) controlled by the detector for deliv...
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WO/1989/006873A1 |
A circuit is provided to protect a liquid-filled electrical power transformer (10) from damage due to an internal fault which causes a rapid rise in pressure. A pressure transmitter assembly (12) converts the internal pressure of the tra...
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WO/1989/005050A1 |
A protective device for electrical mains appliances, in particular hand appliances connected by a cable (8) to a connecting plug or similar, comprises in the region of the connecting plug a protective switch (16) which can be actuated by...
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WO/1989/001718A1 |
A protective switching device for electrical appliances, in particular household appliances, has at least two current-carrying leads (L1', L2') and a spring-loaded switch (6) which can be switched off by a remote-controlled trip element ...
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WO/1988/010019A1 |
The electrical circuit breaker serves as a protective measure, in particular against electrocution in the bath in the event of a hairdryer falling into a bathtub filled with water. The circuit breaker operates very simply on alternating ...
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WO/1988/006813A1 |
An immersion detector circuit interrupter (38) having a sensor (22) located around the electrical components of an appliance (10) and switches (44) for interrupting the delivery of alternating current to the appliance (10) whenever the s...
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WO/1988/005974A1 |
In order to provide equipment with fail-safe characteristics in the event of accidents or failures that could disable the protective device of electrically driven, in particular portable apparatuses with a movable mains connection line a...
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WO/1988/004488A1 |
A method and system for electronically simulating, indicating and controlling the temperature of liquid cooled multi-phase electric power transformers. The temperatures of transformer windings are electronically computed from the actual ...
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WO/1988/000405A1 |
The system described operates in a very simple manner during a.c. operation and is particularly suited for providing protection against danger. A bistable relay (1, 5, 6) is used as the cut-off device, said relay drawing the power requir...
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WO/1987/002835A1 |
A device for protecting against excess current comprises a positive temperature coefficient (PTC) device and a tension spring connected by a solder joint adjacent the PTC device. Electrical current passes in series through the spring and...
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WO/1987/001902A2 |
A protective circuit for electrical apparatus has an insulated safety line (4) extending from the relevant electrical apparatus (6) to the protective circuit (2). The safety line (4) has inside the apparatus (6) at least one non-insulate...
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WO/1986/006920A1 |
An electrical heating pad, in particular a mattress to be laid under a patient during surgery, comprising a number of partially overlapping resistor elements (11-18). The foil elements cover different regions of the pad and are positione...
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WO/1986/002500A1 |
A method and a device for detection of an electric load (9) for the purpose of allowance of its connection to a power voltage from an electric voltage source over electric conductor means (7, 8). They are normally kept free from power vo...
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WO/1986/001299A1 |
Circuit for continuously controlling the grounding resistance of electric apparatuses of which the electrically conducting components susceptible of being touched, such as the casing, are connected by a grounding wire to a ground potenti...
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WO/1986/000179A1 |
Overheating alarm for surveillance of heat emitting objects, preferably intended for surveillance of hotplates and electric cookers. Emitted heat radiation from a monitored object is detected by an IR-detector, located at a distance from...
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WO/1985/002724A1 |
New device for protecting human life and property against electrical shock and more specifically to a shock hazard prevention system for disconnecting an electrical load from an electrical source when a shock hazard condition exists with...
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WO/1985/002744A1 |
In a two-way cable television (CATV) system, multiple subscriber address codes are provided during designated vertical blanking interval (VBI) lines of the video signal transmitted from the CATV headend to a plurality of system subscribe...
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WO/1983/003160A1 |
To protect the operator of an electrically supplied apparatus in a damp room against an electric discharge, there is provided a protection device comprised of a probe formed by two conductors (44, 45; 46, 47) which cannot come in contact...
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WO/1983/001138A1 |
A system for monitoring abnormally high temperature along the length of a heating conductor (H) includes a tracing cable (T) containing a heating conductor (H) and a monitoring conductor (M). The monitoring conductor (M) is connected to ...
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WO/1979/001033A1 |
Protection arrangement against a solicitation by suppression of the encapsulation (6), in switching devices encapsulated and insulated by pressure gas, distributed within individual sealed compartments. The arc is short-circuited for ext...
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WO/1979/000769A1 |
A circuit breaker (1) having an electronic fault sensing and trip initiating unit (2) which provides increase versatility and ability to coordinate the circuit breaker with other interrupting and protective devices in a wide variety of e...
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JP2024065827A |
The present invention provides a power supply control device, a power supply control method, a power supply control program, and an image forming apparatus that can perform suitable control. [Solution] An infrared temperature sensor dete...
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JP2024063344A |
An object of the present invention is to provide a status confirmation device that can confirm whether the SPD is normal or malfunctioning, which can be applied to various power supply systems. [Solution] The SPD10A has first to third po...
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JP2024061936A |
An object of the present invention is to suppress an increase in the storage capacity of a data storage unit that stores data while suppressing erroneous determination of abnormality in a device. [Solution] A data storage unit that store...
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JP2024061298A |
The present invention provides a power supply control device, a power supply control method, and a computer program capable of estimating correct wire temperatures for multiple types of loads having different drive current values. A powe...
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JP7474745B2 |
An overcurrent protection element includes: chip fuse; a printed circuit board configured by mounting chip fuse on a surface thereof; external connection part configured by being coupled to the printed circuit board; and insulating layer...
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JP7472577B2 |
A current control device includes a constant current circuit and a current adjustment device. The current adjustment device applies a voltage to the constant current circuit. The constant current circuit draws a constant current accordin...
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JP7472151B2 |
An overcurrent protection circuit limits a monitoring target current to or below a limit current value IOCP. For example, it can operate so as to give the limit current value IOCP, when temperature Tj is lower than a threshold value Tx, ...
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JP7469932B2 |
To provide an advantageous technique for suppressing a secondary disaster caused by a stationary battery device which stores power supplied from an electric system.The power system includes: an electric system which supplies power; and a...
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JP2024054097A |
A modular battery system and method provides adjustable DC voltage output that prevents contact breakdown due to arcing when the battery's output voltage suddenly increases. A modular battery system (1) includes a precharge unit (3) havi...
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JP7462535B2 |
To provide an outlet device that can detect the occurrence of a connection failure even when the amount of heat generated is small when the connection failure occurs, and can perform more detailed monitoring than before.An outlet device ...
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JP7459522B2 |
To provide a load control device that, when a DC power is supplied, can stop supply of power to a heater.A load control circuit of the present invention comprises: a control element that is provided in a power supply path between a first...
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JP2024042740A |
An object of the present invention is to protect power supply lines with a low-cost configuration. [Solution] A first control device connected to a plurality of second control devices by a communication line, the plurality of second cont...
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JP2024512233A |
Provided is an economical smart temperature control device for an electric heating appliance that uses a heat-sensitive wire made of a temperature-sensitive insulating resin in a DC electric heating appliance and can accurately control t...
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JP7451094B2 |
According to an embodiment, a storage battery device that includes a housing, battery packs, and a heat detection function having a linear structure is provided. The battery packs are accommodated in the housing. The battery packs are el...
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JP7437708B2 |
To reduce detection omission of temperature abnormality.An electric outlet 1 has a temperature measurement section 9 and an abnormality detection section 101. The temperature measurement section 9 measures temperature of a plurality of m...
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JP2024024993A |
An object of the present invention is to provide a current interrupting device capable of detecting in detail the temperature transition of a heating element before the current is interrupted. A current interrupting device 100 includes a...
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JP7436650B2 |
The failure detection device detects failure in switches that are selectively switched between conduction and non-conduction in a current path, and includes: two or more temperature sensors in which a resistance value between terminals c...
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JP2024507031A |
DC power attachment devices provide a convenient solution in adapting DC power from an AC socket connected to an existing power distribution circuit. This allows multiple DC devices to simultaneously access multiple DC power sources at t...
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JP2024020809A |
[Problem] To vary the overheat detection temperature. According to one embodiment, an overheat protection circuit includes a reference voltage generation circuit, a constant current source, a second voltage generation section, an output ...
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JP7425768B2 |
A breaker 1 of the present invention comprises: a fixed piece 2 having a fixed contact 21; a movable piece 4 having a movable contact 41; a heat sensitive element 5 that deforms following a change in temperature to move the movable piece...
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JP7422142B2 |
A protector is provided. The protector includes: a first adaptor piece; a first impedance element; a second adaptor piece, the first impedance element is coupled to the first adaptor piece and the second adaptor piece, and the first adap...
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JP2024006656A |
An object of the present invention is to protect power supply lines with a low-cost configuration. [Solution] A first control device connected to a plurality of second control devices by a communication line, the plurality of second cont...
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JP7413846B2 |
To provide a disaster prevention system for preventing an electric fire in the event of a disaster, which can prevent a power interruption against a user's intention and prevent an occurrence of a failure due to the interruption of unnec...
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JP7404983B2 |
A power supply control device controls power supply from a DC power source to a load, by turning on or off a MOSFET. A current regulation circuit regulates a current flowing through a device resistor to a current proportional to a voltag...
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JP2023177647A |
To provide an abnormal heating detection system that does not require a temperature sensor and a potential difference circuit and is capable of detecting occurrence of abnormal heating with a single sensor even if there are multiple targ...
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JP2023176081A |
To provide a power storage device which can detect water immersion before water reaches a battery module.A power storage device comprises: a battery module 10 which includes a battery cell 11; an electrical instrument which is arranged o...
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JP7396866B2 |
This protection circuit is provided with a plurality of protection elements connected in series on an energization path with a battery and an external circuit. Each of the plurality of protection circuits comprises a fuse element connect...
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JP2023170996A |
To provide an air conditioning clothing device which prevents fire due to heat of a damaged electronic component that generates a large quantity of heat.When a first semiconductor unit 7f is damaged which generates a large quantity of he...
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