37results about "Electrothermal relays" patented technology

The utility model discloses a PTC (Positive Temperature Coefficient) temperature relay, which comprises an outer shell and a plurality of printed circuit boards arranged in the outer shell, the printed circuit boards are fixed through welding, and orthographic projections of the printed circuit boards are overlapped; the PTC temperature relay detection circuit is arranged on the printed circuit board; the PTC temperature relay detection circuit comprises a plurality of circuit modules, and the plurality of circuit modules are arranged on a plurality of printed circuit boards. According to the PTC temperature relay detection circuit, the plurality of circuit modules are respectively arranged on the plurality of printed circuit boards according to the difference of different functional modules in the PTC temperature relay detection circuit, and the space occupied by the circuit boards is reduced through the structural design of the circuit boards and the mutual overlapping of orthographic projections of the printed circuit boards.

The utility model discloses a thermal relay mounting seat structure, which belongs to the technical field of thermal relays and comprises a mounting plate, the surface of the mounting plate is fixedly connected with an adjusting bin, the inside of the adjusting bin is fixedly connected with a bearing so that a first rotating shaft is arranged inside the adjusting bin in a penetrating manner, and the surface of the first rotating shaft is fixedly connected with a transmission worm. The surface of the adjusting bin is fixedly connected with a bearing, so that a threaded pipe is arranged in the adjusting bin in a penetrating manner, the surface of the threaded pipe is fixedly connected with a transmission worm gear, and the transmission worm is meshed with the transmission worm gear. When a worker uses the device to install the thermal relay, the worker only needs to drive a first rotating shaft to rotate through a rotary knob, and under the cooperation of a transmission worm and a transmission worm gear, a limiting screw rod in a threaded pipe can move into a positioning groove, so that the effect of protecting the thermal relay is achieved.

A thermodynamic relay gadget includes a relay oscillator and an on-chip controller. The relay oscillator has a time dependent mass or time dependent frequency that is controllable, by the on-chip controller. The relay gadget is configured to relay thermodynamic information in analog form between an output oscillator of a first energy-based model and an input oscillator of a second energy-based model.

The application relates to a wiring power-off integrated relay and a cable connection and protection method, which comprises a trapezoidal cylinder body, a plurality of piston rods uniformly arranged around the outer periphery of the trapezoidal cylinder body; an easy sublimation substance is arranged in the cylinder body; a long strip arc surface-shaped conductive bridge is fixed to the outer end of the piston rod; the outer end of the conductive bridge is covered with a long strip arc surface-shaped insulating baffle; electric connectors for connecting external wires are arranged on the two end faces of the trapezoidal cylinder body respectively; the piston rod drives the conductive bridge to simultaneously electrically contact or disconnect with the two electric connectors; in the initial state, the insulating baffles are circumferentially enclosed and start to cover the wires with wire insulation skins; the wiring power-off integrated relay and the cable connection and protection method can realize wire connection and relay circuit protection in one, realize integration of the whole with the wires, are small in size, and do not need to be installed in an electric box or a switch cabinet.

The invention relates to a device for tripping an electrical switch, comprising a tripping lever which is movable between a neutral position and a tripping position, wherein the device comprises an actuator with a first shaping and a second shaping and a control element that is moved by the actuator due to its shaping, which control element directly or indirectly moves the tripping lever, wherein the actuator having the first shaping moves the tripping lever into the tripping position and the actuator having the second shaping moves the tripping lever into the neutral position, and wherein the actuator is a shape memory alloy actuator.

The invention belongs to the technical field of power adapters, and particularly relates to an automatic overheating protection device for a power adapter, which comprises a main body, a machine body assembly is arranged at the top of the main body; a control assembly is fixedly connected to the top of the machine body assembly; through the structural design that the temperature sensor adopts the thermistor, the thermistor is installed on the cooling fin of the power adapter, and the controller is connected with the temperature sensor, the temperature change of the power adapter is monitored in real time, the temperature signal is received, and whether the power adapter is in an overheating state or not is judged; the problem that the temperature of the power adapter is too high, so that potential safety hazards such as electronic equipment damage and fire are caused is solved, the control response speed is improved, the power supply can be rapidly cut off when the temperature of the power adapter is abnormally increased, the potential safety hazards caused by overheating are avoided, and meanwhile the operation safety and stability are improved.

To provide a thermal overload relay that can be automatically assembled by simplifying assembly.SOLUTION: A push shifter 14 and a pull shifter 15 are provided, which are displaced by engaging with a plurality of bimetals 13U, 13V, 13W from one side and the other side in a displacement direction. The push shifter has an elongated hole formed in the displacement direction, and the pull shifter also has an elongated hole formed in the displacement direction. Projections 45a1, 45b1, 45a2, 45b2 protruding from an end face of a partition wall of a case 12 are formed with shifter fall-off prevention portions 48b, 49b that prevent the push shifter and the pull shifter from falling off when the shifter fall-off prevention portions are fitted into the elongated holes of the push shifter and the pull shifter and moved in the displacement direction.SELECTED DRAWING: Figure 7

A battery system includes a first electrical interface and safety switch connected to the first electrical interface and including a shape memory alloy element configured to deform from an unactuated configuration to an actuated configuration in response to reaching an activation temperature. A second electrical interface is connected to the safety switch, and the connection between the first electrical interface, the safety switch, and the second electrical interface enables electrical current to flow through a LIB cell. When the shape memory alloy element is the unactuated configuration, the safety switch directly engages the first electrical interface and the second electrical interface and enables electrical current to flow through the LIB cell. When in the actuated configuration, the safety switch disconnects from at least one of the first electrical interface and the second electrical interface and disables electrical current from flowing through the LIB cell.

Provided are a protecting device and a battery pack capable of preventing floating of a blowout member, preventing deformation of a meltable conductor, and maintaining predetermined current capacity and blowout properties. The protecting device 1 includes: a meltable conductor 2; and a blowout member 4 connected to one surface of the meltable conductor 2, wherein the blowout member 4 includes: an insulating substrate 3; and a deformation suppressing electrode 5 formed on a front surface 3a connected to the meltable conductor 2 of the insulating substrate 3 and connected to the meltable conductor 2 to suppress deformation of the meltable conductor 2.

The present embodiments relate to a shape memory alloy (SMA) sensor being part of a switch. For instance, an SMA sensor can include an actuator configured to engage with a locking mechanism that modifies the resistance of the SMA sensor when the locking mechanism is in the locked position. The resistance of the SMA sensor can be unmodified by an external magnetic field, increasing reliability of the SMA sensor resistance determining a state of the locking mechanism. Another example, SMA sensor is an SMA wire being in contact with a locking mechanism in the locked position, thereby increasing a resistance of the SMA wire in the locked position.

A thermal protection device, comprising: a first PTC device, arranged in a PTC circuit, and having a first input side, coupled to an input path of the PTC circuit, and having a first output side, coupled to an output path of the PTC circuit; a second PTC device, arranged in the PTC circuit, and having a second input side, coupled to the input path of the PTC circuit, and having a second output side, coupled to the output path of the PTC circuit; and a thermal link having a third input side, coupled to the first output side of the first PTC device and the second output side of the second PTC device, via the output path of the PTC circuit.

A thermodynamic relay gadget includes a relay oscillator and an on-chip controller. The relay oscillator has a time dependent mass or time dependent frequency that is controllable, by the on-chip controller. The relay gadget is configured to relay thermodynamic information in analog form between an output oscillator of a first energy-based model and an input oscillator of a second energy-based model.

The present embodiments relate to a shape memory alloy (SMA) sensor being part of a switch. For instance, an SMA sensor can include an actuator configured to engage with a locking mechanism that modifies the resistance of the SMA sensor when the locking mechanism is in the locked position. The resistance of the SMA sensor can be unmodified by an external magnetic field, increasing reliability of the SMA sensor resistance determining a state of the locking mechanism. Another example, SMA sensor is an SMA wire being in contact with a locking mechanism in the locked position, thereby increasing a resistance of the SMA wire in the locked position.

A small independent thermal overload relay comprises a shell, a wiring system, a bimetallic strip, a guide plate structure and an actuating mechanism, the wiring system comprises a plurality of wiring units, and each wiring unit comprises a first wiring terminal, a first contact plate, a second contact plate and a second wiring terminal. The first wiring terminal and the second wiring terminal are arranged on the two sides of the bimetallic strip in the length direction of the shell, and the bimetallic strip is electrically connected between the first contact plate and the second contact plate. According to the small-sized independent thermal overload relay, the wiring system, the guide plate structure and the actuating mechanism are arranged along the height direction of the shell, the plurality of wiring units are arranged along the width direction of the shell, and the contact plate, the wiring terminal and the bimetallic strip are arranged along the length direction of the shell, so that the overall structure of the thermal overload relay is compact and ordered; and the wiring terminal of the wiring unit is connected with the contactor for use through wiring, so that the thermal overload relay can be independently installed and is suitable for contactors of different models.

A battery system includes a first electrical interface and safety switch connected to the first electrical interface and including a shape memory alloy element configured to deform from an unactuated configuration to an actuated configuration in response to reaching an activation temperature. A second electrical interface is connected to the safety switch, and the connection between the first electrical interface, the safety switch, and the second electrical interface enables electrical current to flow through a LIB cell. When the shape memory alloy element is the unactuated configuration, the safety switch directly engages the first electrical interface and the second electrical interface and enables electrical current to flow through the LIB cell. When in the actuated configuration, the safety switch disconnects from at least one of the first electrical interface and the second electrical interface and disables electrical current from flowing through the LIB cell.

The utility model belongs to the technical field of relays, and provides a mechanical drive bistable relay, which comprises a cylinder body, a mechanical drive mechanism, an opening and closing mechanism and a piston, and is characterized in that the mechanical drive mechanism, the opening and closing mechanism and the piston are arranged on the cylinder body; the mechanical driving mechanism drives the piston, the piston is driven by the mechanical driving mechanism to reciprocate in the cylinder body, the opening and closing mechanism is controlled to be communicated, and a circuit is controlled to be switched on and off. The novel bistable relay has the advantages of being small in size, high in electrical bearing capacity, high in electrical isolation capacity, good in communication effect and wide in use temperature range, and the novel bistable relay can be manufactured only through precise casting.

To provide a protection element which incorporates a heating element therein, deals with high voltage and heavy current, and blocks a current path more safely and quickly without causing damage in the element.SOLUTION: A protection element includes: a fuse element 2: and a fusing member 3. The fusing member 3 has: an insulation substrate 4; a heating element 5; an insulation layer 6 which covers the heating element; a heating element extraction electrode 7 which is overlapped with the heating element 5 through the insulation layer 6; a heat radiation part 8 which is formed at an area, which is located at the surface 4a side of the insulation substrate 4 and overlaps with at least the heating element 5, and electrically independent from the heating element extraction electrode 7; a holding electrode 10 which is formed on a rear surface 4b of the insulation substrate 4 and holds a fused conductor 2a of the fuse element 2; and a through hole 11 which allows the heating element extraction electrode 7 and the holding element 10 to be continuous with each other. The fuse element 2 is connected to the holding electrode 10.SELECTED DRAWING: Figure 2

A small independent thermal overload relay comprises a shell, a wiring system, a bimetallic strip, a guide plate structure and an actuating mechanism, the wiring system comprises a plurality of wiring units, and each wiring unit comprises a first wiring terminal, a first contact plate, a second contact plate and a second wiring terminal. The first wiring terminal and the second wiring terminal are arranged on the two sides of the bimetallic strip in the length direction of the shell, and the bimetallic strip is electrically connected between the first contact plate and the second contact plate. According to the small-sized independent thermal overload relay, the wiring system, the guide plate structure and the action mechanism are arranged along the height direction of the shell, the plurality of wiring units are arranged along the width direction of the shell, and the contact plate, the wiring terminal and the bimetallic strip are arranged along the length direction of the shell, so that the overall structure of the thermal overload relay is compact and ordered; and the wiring terminal of the wiring unit is connected with the contactor for use through wiring, so that the thermal overload relay can be independently installed and is suitable for contactors of different models.

The utility model belongs to the technical field of low-voltage electric appliances, and discloses a relay rear cover, which comprises a cover body and a shielding piece, and is characterized in that the cover body covers the rear end of a thermal overload relay in a sealing manner, and an avoiding hole allowing a lead to penetrate out is formed in the cover body; the shielding piece comprises a shielding part and a first auxiliary part, the first end of the shielding part is connected with the cover body and arranged above the receding hole, the second end of the shielding part extends in the direction away from the cover body, the first side of the shielding part is connected with the first auxiliary part, and the first auxiliary part extends towards the side away from the shielding part and is matched with the shielding part to form a shielding space. The projection of the second side of the shielding part on the projection surface is tangent to the avoiding hole, and when the thermal overload relay is matched with the contactor, the second side of the shielding part is used for abutting against the side wall of a corresponding isolation rib on the contactor. The rear cover of the relay can completely shield a lead exposed between the thermal overload relay and the contactor and avoid interference with an isolation rib.

The present embodiments relate to a shape memory alloy (SMA) sensor being part of a switch. For instance, an SMA sensor can include an actuator configured to engage with a locking mechanism that modifies the resistance of the SMA sensor when the locking mechanism is in the locked position. The resistance of the SMA sensor can be unmodified by an external magnetic field, increasing reliability of the SMA sensor resistance determining a state of the locking mechanism. Another example, SMA sensor is an SMA wire being in contact with a locking mechanism in the locked position, thereby increasing a resistance of the SMA wire in the locked position.

A thermodynamic relay gadget includes a relay oscillator and an on-chip controller. The relay oscillator has a time dependent mass or time dependent frequency that is controllable, by the on-chip controller. The relay gadget is configured to relay thermodynamic information in analog form between an output oscillator of a first energy-based model and an input oscillator of a second energy-based model.

In the present invention, a trip operation of a reversal mechanism (24) is performed by a differential lever (23) being pivoted by being pushed against a push shifter (22a) from the outside in the radial direction with a position at which the differential lever engages with a pull shifter (22b) as the pivot center, and a compensation bimetal contact surface (74) that is provided to the differential lever displacing a compensation bimetal (31). In addition, there is provided a compensation bimetal displacement amplifying means that amplifies the displacement of the compensation bimetal by, in an overloaded state in which an overcurrent flows, stopping of the displacement of the pull shifter and a subsequent displacement of the push shifter, whereby the differential lever is pivoted.

The present invention relates to a heating assembly for an aerosol generating device. The heating assembly may comprise a first solder spot and a second solder spot. The heating assembly may further comprise a connection strip electrically connecting the first solder spot to the second solder spot. One of the first solder spot and the second solder spot may be configured as a soft solder spot having a melting temperature of 200°C to 300°C. The connection strip may be configured as a bimetallic strip. The present invention further relates to an aerosol generating device comprising the heating assembly.

The utility model discloses a thermal relay and a combined structure of the thermal relay and a contactor. A rear cover plate; the penetrating pipes are fixed and arranged on the outer wall face of the rear cover plate in a protruding mode, the rod type terminals are arranged in the penetrating pipes in a penetrating mode, one ends of the rod type terminals are connected with the thermal tripping mechanism, and the other ends of the rod type terminals are located outside the penetrating pipes; the lower buckles are fixedly arranged on the outer wall face of the rear cover plate at intervals, the lower buckles and the penetrating pipes are located at the two ends of the rear cover plate in the length direction respectively, and buckling parts buckled with the ends of the lower buckles are arranged on a shell of the contactor; when the rod type terminal is connected with a wiring terminal of the contactor and the lower buckle is buckled with the buckling part, the penetrating pipe is in contact with the contactor shell, and the penetrating pipe and the lower buckle support the rear cover plate at the same time, so that a connection gap is kept between the rear cover plate and the contactor shell, and the connection gap is used for heat dissipation of the thermal relay. The strength of the connection structure between the combined thermal relay and the contactor is improved, heat dissipation of the thermal relay is facilitated, and action response and reset time of the thermal relay are ensured to accord with set parameters.

The invention discloses a contact bistable switching control mechanism of a thermal relay and the thermal relay, and the mechanism comprises a housing, a movable spring push rod movably disposed on the housing, a switching rod disposed corresponding to the movable spring push rod, and an action reed connected with the movable spring push rod. The movable spring push rod is provided with a bistable switching minimum action stroke corresponding to a shear dead point of an action reed of the thermal relay, the switching rod is provided with a switchable limiting action position and a switchable limiting release position relative to the shell, and the movable spring push rod and the switching rod are provided with a first limiting part and a second limiting part respectively. And when the switching rod is pushed to the limiting action position, the second limiting part moves to the motion path of the first limiting part, and when the movable spring push rod acts, the second limiting part can be in limiting fit with the first limiting part so as to limit the action stroke of the movable spring push rod to be smaller than the minimum action stroke of bistable switching. According to the invention, the switching rod can be used for manually controlling whether the contacts are switched in a bistable state or not, and the application range of the thermal relay is widened.

A power relay circuit (100) for switching a load current includes a micro-electro-mechanical system switch, hereinafter MEMS switch (110), and a semiconductor power switch (120). The MEMS switch (110) and the semiconductor power switch (120) are connected in series with the load current.

The utility model belongs to the technical field of thermal protectors, and particularly relates to a closed thermal protector, which aims at solving the problems of poor protection effect, low wiring efficiency and inconvenience in replacement in the background technology, and comprises a thermal relay and an alternating current contactor, a transparent protective cover is hinged to the outer wall of one side of the thermal relay, and the alternating current contactor is hinged to the transparent protective cover. A buckling strip is arranged on the outer wall of one side of the transparent protective cover. The transparent protective cover can well protect the coded disc and the reset disconnection button, the stability of the thermal protector during operation is ensured, after the wire inlet terminal is inserted into the wiring port, signal connection can be realized by utilizing the magnetic attraction of the first magnetic sheet and the second magnetic sheet between the thermal relay and the alternating current contactor, the structure is stable, and the service life of the thermal protector is prolonged. The heat protector is simple in structure, the wiring end is not easy to loosen, the wiring efficiency is improved, the alternating current contactor is fixed by clamping the inner groove on the alternating current contactor on the clamping bar, the heat protector can be taken away only by separating the inner groove from the clamping bar with force, and the heat protector is very convenient to disassemble.

This utility model belongs to the field of low-voltage electrical technology and discloses an electromagnetic starter, including a housing assembly, a stop operation button, a thermal relay, and a button assembly. The housing assembly has an installation space; the stop operation button is located on the housing assembly and is used to accept operation to stop the electromagnetic starter; the thermal relay is located in the installation space and has a stop button for stopping the thermal relay and a reset button for resetting the thermal relay; the button assembly is movably located on the housing assembly, with its first end for accepting a pressing operation, and its second end extending into the installation space and having a pushing part that can push against the stop button and the reset button. This electromagnetic starter can reduce the frequency of use of the button assembly for resetting and stopping the thermal relay, optimize the force condition of the button assembly when pressed, and improve the service life of the button assembly and the thermal relay.