24 results about "Thermal cutoff" patented technology

The utility model discloses a multi-temperature-control PTC heating structure which comprises a PTC heater, a temperature control box and a temperature detection assembly. The temperature detection assembly is arranged on the PTC heater and used for detecting the temperature of the PTC heater, and the corresponding end of the temperature detection assembly is further electrically connected with the corresponding end of the temperature control box and used for feeding back detected temperature information of the PTC heater to the temperature control box; the temperature control box is detachably arranged on the PTC heater, and a thermal protector and a thermal fuse are integrated in the temperature control box; the corresponding ends of the thermal protector and the temperature fuse are electrically connected with the corresponding end of the PTC heater; the thermal protector is used for automatically disconnecting a circuit to prevent overheating when the temperature of the PTC heater exceeds a preset safety threshold value. According to the utility model, the temperature of the PTC heater can be accurately controlled, the temperature requirements in different application scenes can be met, and the PTC heater has wide application prospects.

This invention discloses a heat-absorbing layer for a metal oxide varistor. A thermally protected metal oxide varistor (TMOV) device includes: an MOV chip; a first electrode disposed on a first side of the MOV chip; a second electrode disposed on a second side of the MOV chip opposite to the first side; a conductive first lead connected to the first electrode; a heat-absorbing layer bonded to the second electrode by a heat-absorbing paste formed from a mixture of silica sand, melamine cyanurate, and silicone resin, wherein the heat-absorbing paste is formed from a mixture of melamine cyanurate and silicone resin; a thermal cutoff (TCO) element extending through pores in the heat-absorbing layer and having a first end electrically connected to the second electrode by a certain amount of solder having a melting temperature lower than the melting temperature of the TCO element; and a conductive second lead electrically connected to the second end of the TCO element.

The application provides a design method and device of a super-deep cold component thermal cutoff part and related equipment, and comprises the following steps: establishing a design domain of a thermal cutoff part on a main support structure connected with a liquid nitrogen cavity and an outer Dewar cavity; obtaining a target distribution position of the thermal cutoff part through thermal coupling topological analysis; performing parameterized modeling at the target distribution position; performing parameter optimization to obtain a target shape of the thermal cutoff part; and checking the thermal cutoff part with the target shape at the target distribution position. The design method optimizes the distribution position and shape of the thermal cutoff part, specifically, the optimal distribution position of the thermal cutoff part is determined by using a structure topological optimization method, and the optimal shape of the thermal cutoff part is determined by using a structure parameter optimization method, so that the heat from the outside is as low as possible to be transmitted to the superconducting coil.

An air conditioning appliance may include an air plenum, a recovery casing, a first recovery exhaust fan, a heat exchanger core, and a thermal cutoff. The recovery casing may be attached to the air plenum. The recovery casing may define an outdoor casing inlet downstream from the air plenum and an indoor casing outlet downstream from the outdoor casing inlet along an external recovery flow path. The recovery casing may further define an indoor casing inlet and an outdoor casing outlet along an internal recovery flow path. The first recovery exhaust fan may be mounted within the recovery casing along the external recovery flow path. The heat exchanger core may be disposed along the external recovery flow path and the internal recovery flow path. The thermal cutoff may be mounted within the recovery casing in operable communication with the first recovery exhaust fan.

The utility model relates to the technical field of electric heating, aims to solve the problems that in the prior art, an electric heating film overheating protection system is inconvenient to install and fix on a carbon fiber electric heating film and low in construction efficiency, and provides an installation shell of an electric heating film overheating protection system. The base and the panel are used for being installed on the two sides of a carbon fiber electrothermal film respectively, the panel is detachably connected with the base, an installation groove is formed in the inner side of the base, and a temperature fuse of an electrothermal film overheating protection system is installed in the installation groove; the base is further provided with a wire outlet groove, and the wire outlet groove is used for a pin or a lead of the thermal fuse to pass through. The electric heating film overheating protection system is simple in structure and convenient to install, the electric heating film overheating protection system can be rapidly and conveniently installed on the carbon fiber electric heating film, construction efficiency can be improved, the situation that the electric heating film overheating protection system is neglected or even not installed on a construction site can be eradicated, and reliability and safety of the electric heating system can be improved.

The application provides a method and device for MCU mode fuse protection when power electronic switch fails, relates to the technical field of power electronic protection, and comprises the following steps: obtaining a target fusing temperature set by a user in advance through a dial switch, a real-time environment temperature of a temperature fuse and a real-time atmospheric environment temperature; performing self-diagnosis and judgment on the temperature fuse based on the real-time environment temperature of the temperature fuse and the real-time atmospheric environment temperature; dynamically controlling a heating module to heat the temperature fuse; when the real-time environment temperature of the temperature fuse is greater than the target fusing temperature, the temperature fuse is fused, so that the heating module is synchronously powered off to stop heating, and the circuit loop is cut off through the fusing of the temperature fuse. The application can completely solve the industry safety pain point that the main switch cannot be disconnected after failure.

The present application relates to the field of temperature fuse, in particular to a temperature fuse capable of reflow soldering and a reflow soldering method thereof. The present application discloses a temperature fuse capable of reflow soldering and a reflow soldering method thereof, wherein the temperature fuse capable of reflow soldering comprises an insulating shell, a fixed electrode, an elastic electrode and a thermal element, the fixed end of the fixed electrode and the elastic end of the elastic electrode are located in the insulating shell, the elastic end of the elastic electrode is fixedly connected with the fixed end of the fixed electrode through the thermal element after elastic deformation, the elastic electrode has soft magnetism, and is used for interacting with a magnetic field to generate magnetic attraction force so as to limit the elastic end of the elastic electrode from separating from the fixed end of the fixed electrode. The temperature fuse of the present application can be reflow soldered, has simple structure, is easy to realize, and is easy to realize large-scale production.

The invention, which relates to the technical field of the power adapter, discloses an abnormal external ultrahigh-voltage input shell-melting-prevention circuit comprising a power adapter shell, a circuit board, and an input rectification filtering unit. The input rectifying and filtering unit comprises a fuse F1, a fuse F2, a temperature fuse TF1, a lightning protection device piezoresistor MOV1 and an input electrolytic capacitor CX1; on the AC input side, a fuse F1 and a fuse F2 form a double-insurance circuit, a temperature fuse TF1 and a piezoresistor MOV1 form a series circuit, and the temperature fuse TF1 is tightly attached to the piezoresistor MOV1; through the circuit design of double insurance and introduction of the temperature fuse, multiple open-circuit protection is formed, and the risk of plastic shell fusion caused by short circuit of devices can be effectively avoided. An electrolyte absorption structure is arranged in the power adapter shell, when an electrolyte is sprayed out after a top explosion-proof valve of an input electrolytic capacitor CX1 is opened, the electrolyte is absorbed, and the situation that the electrolyte falls on a circuit to cause short-circuit heating or shell melting through caused by fire is reduced.

According to the invention, the possibility of false operation when large current accidentally flows through the ground is reduced. The protective element (14) has a housing (42), a temperature fuse element (34), and a current fuse element (36). The thermal fuse element (34) is housed in the housing (42). The current fuse element (36) is housed in the housing (42). The melting point of the current fuse element (36) is higher than the melting point of the temperature fuse element (34). The thermal fuse element (34) and the current fuse element (36) are connected in parallel.

The utility model relates to fuse technology field especially relates to a high heat transfer quick response temperature fuse. The high heat transfer quick response temperature fuse includes temperature fuse body and heat conduction spare, and the main part of heat conduction spare is pasted around the shell peripheral surface of temperature fuse body, the first wing piece of the first end of main part is equipped with the direction of extending away from temperature fuse body, and / or, the second wing piece of the tail end of main part is equipped with the direction of extending away from temperature fuse body, the first wing piece and second wing piece are used for with the surface contact of heating component. When installing the temperature fuse, the main part of heat conduction spare is pasted in the fuse main part periphery, and the wing piece can be pasted on the surface of heating component to expand the contact area of temperature fuse and heating component, which is favorable to the heat of heating component to accelerate transmission to temperature fuse, thereby improving the response rate of temperature fuse.

The utility model relates to the field of electronic tags, especially a temperature monitoring passive electronic tag, including radio frequency circuit module and detection circuit module and temperature fuse, radio frequency circuit module is connected with detection circuit module electricity, the temperature fuse is in series on detection circuit module, radio frequency circuit module detects the circuit state of detection circuit module, after the label configuration, its through the temperature fuse of detection circuit module senses the temperature change of the monitored article, when the monitoring temperature reaches the set temperature, the temperature fuse fuses, and the circuit state of detection circuit module changes, so that the information feedback of radio frequency circuit module changes when being identified by the reader, and further realizes the judgment whether the equipment is in the overtemperature state, and can do the preventive maintenance and overhaul in advance.

The present application relates to the field of thermal fuses, and particularly relates to a quick-response thermal fuse. The quick-response thermal fuse comprises a housing, a bimetallic strip disposed in the housing, a tripping device, a first electrode, a second electrode, and an electrical interrupting device bridged between the first electrode and the second electrode, wherein two ends of the tripping device are respectively abutted against a movable end of the bimetallic strip and the electrical interrupting device; the bimetallic strip is close to the housing; when the bimetallic strip deforms upon heating, the bimetallic strip pushes the tripping device and the electrical interrupting device out of their abutting state; and the electrical interrupting device maintains a closed state under an external force applied by the tripping device, and when the external force is removed, the electrical interrupting device is in an open state. The present disclosure integrates the advantages of two current technologies, i.e., a bimetallic strip technology and a low-melting-point alloy technology, and also overcomes the disadvantages of the two technologies, thereby improving the user experience, and also greatly improving the product performance.

The application discloses a heating seat ring and a preparation method thereof and an intelligent cover plate. The heating seat ring comprises a seat ring upper shell, a heating film and a seat ring lower shell. The seat ring upper shell is provided with a cavity surrounded by a side plate. The cavity is provided with an upper opening and a side opening. The film body of the heating film is provided with a protruding part. The protruding part extends into the cavity through the side opening. The side opening is provided with a sealing plate for sealing the side opening. A temperature fuse is arranged in the cavity and is in close contact with the protruding part. The protruding part of the heating film is arranged in the cavity. The temperature fuse is arranged after injection molding. Since the protruding part of the heating film is in communication with the heating wire of the whole heating film, the temperature fuse can effectively sense the heating temperature of the heating film in the seat ring. The application can avoid the temperature fuse from being fused due to high temperature of secondary injection molding, can effectively sense the temperature of the heating film, can ensure that the heating film is intact and not damaged during injection molding, and avoids safety hazards.

A blender includes a processor; a motor; a thermal cutoff device; a detection circuit; a processor, and a non-transitory, processor readable storage medium communicatively coupled to the processor, the non-transitory, processor readable storage medium including one or more instructions stored thereon that, when executed, cause the processor to: receive, from the detection circuit, one or more signals indicative of a trigger event associated with overheating of the motor of the blender via the thermal cutoff device that is configured to operate to an open position or a closed position in response to a detected temperature value relative to a temperature threshold value; generate, in response to the one or more signals, a notification upon occurrence of the trigger event associated with the overheating of the motor of the blender; and output the notification indicative of the trigger event based on the detected temperature value relative to the temperature threshold value.

This invention provides an energy storage device capable of controlling the opening and closing state of an opening based on the state of an energy storage unit housed within it. The energy storage device comprises: a frame housing the energy storage unit; and one or more venting structures disposed within the frame, each of the venting structures including: an opening extending through the frame and having an outer opening surface located outside the frame; a grille disposed on the outer opening surface side; and a blocking portion configured to close the opening, the blocking portion including: a thermal fuse; and a damper configured to switch from an unblocked opening state to a blocked opening state, wherein the damper becomes blocked when the thermal fuse is deactivated at a temperature exceeding a predetermined level.

This invention discloses a fuse-free overheat protection method for medical heating pads, relating to the field of temperature protection technology for medical heating pads. The invention comprises a heating pad therapy device main unit and a heating pad. The main unit includes a main control module, a switch module, and a monitoring module. The heating pad includes a heating core, a thermistor, and a heating pad temperature control switch. By replacing the internal temperature fuse of the heating pad with a temperature control switch, and combining it with an additional monitoring module and the built-in program of the main control module, an independent second-path temperature protection device is constructed. This addresses the shortcomings of current temperature fuse solutions without significantly increasing costs, further extending the service life of the heating pad while preventing overheating. It meets the standard requirement of output cut-off and non-automatic recovery, solving the problem of low-temperature fuses only activating once, and reducing the probability of heating pad failure and scrapping.

The utility model discloses a kind of tire vulcanization equipment protection devices, belong to tire vulcanization protection technical field, including tire mould, tire capsule is equipped in tire mould, tire mould and tire capsule form the accommodating cavity for placing tire blank;Electric heating element is arranged inside tire capsule and / or accommodating cavity outside;Electric heating element is coupled with power supply, and relay is equipped between electric heating element and power supply;Temperature fuse is close to electric heating element setting;Controller is coupled with temperature fuse and relay respectively;The electric heating element of the utility model is arranged inside tire capsule and / or accommodating cavity outside, temperature fuse is added close to electric heating element, when medium circulation element or temperature control element is abnormal, electric heating element long-term full-load operation, temperature of the place close to electric heating element is too high and can make temperature fuse fuse, can cut off power supply in time, improve the service life of electric heating element, and reduce the damage probability of tire vulcanization equipment.

This utility model discloses a combined surge protector, comprising two stacked varistors and a discharge tube, with the discharge tube sandwiched between the two varistors and connected in series with them. An insulating sleeve covers the two varistors and the discharge tube. A first pin is located on the upper surface of the upper varistor, and a second pin is located on the lower surface of the lower varistor, extending from the insulating sleeve. A receiving groove is provided on the side of the varistor near the discharge tube, and the discharge tube is embedded in the receiving groove. A ceramic plate is provided between the varistor and the discharge tube to prevent arc interference and improve withstand voltage performance. This surge protector flexibly adapts to system voltage and reduces residual voltage through voltage superposition. Its planar design reduces board area and is compatible with automated insertion processes. An integrated thermal fuse or mechanical tripping mechanism can cut off the circuit in case of failure, improving safety and reliability.

The invention discloses a field individual soldier emergency power supply for multi-device power supply, and relates to the technical field of emergency power supplies, and the field individual soldier emergency power supply comprises a power supply box body, a hydrogen outlet pipe, a hydrogen inlet pipe and a locking pop-up assembly.The field individual soldier emergency power supply intelligently cooperates with a lithium battery pack and a fuel cell through a main control unit, supports multi-source electricity supplement and stable operation in a wide temperature range from-40 DEG C to + 60 DEG C, and is high in safety. The system has the functions of power-on self-test and accurate fault prompt, a hydrogen system adopts a quintuple safety mechanism of self-sealing, passive thermal cutoff, active pumping and drainage, physical ejection and inert gas dilution, risks are converted from inhibition to thorough removal, a modular hydrogen fuel bin supports quick plugging and three-level leakage response, power supply is automatically switched after ejection, task continuity is guaranteed, and the safety of the system is improved. The whole machine integrates a display screen, a multi-mode alarm and a portable nylon belt, realizes plug-and-play, controllable risk and convenient operation, and comprehensively meets the reliable power utilization demand of an individual soldier in a complex battlefield environment.

The utility model relates to small household electrical appliances technical field, especially the heating assembly and hairdressing tool for hairdressing tool, the utility model discloses a heating assembly for hairdressing tool, it includes heating assembly, heating assembly includes heating element, heat transfer piece, mounting piece, and heating assembly still includes at least one of temperature sensor, fuse, wherein, heating element, it is flaky and can pass through the electric heating, heat transfer piece, it is provided with heat transfer comb body, temperature sensor, it is used for detecting the temperature of heating element, fuse, when the temperature reaches the set value, can fuse and make heating element power off, mounting piece, two ends respectively extend to the direction away from heating element and form the elastic upwarping portion, and the elastic upwarping portion is fixedly connected with heat transfer piece respectively so that mounting piece directly or indirectly holds heating element. The utility model can conveniently complete the assembly of heating assembly, can ensure the heat transfer effect of heating element to heat transfer piece and the temperature accuracy of heating element and / or the reliability of overheating insurance.

The invention discloses a battery with an embedded thermal fuse and a battery module, and belongs to the technical field of lithium ion batteries. A temperature fuse is arranged on the battery cell; the temperature fuse is connected in series between the positive pole lug and the positive pole or between the negative pole lug and the negative pole, and the key point is that the temperature fuse is fused when the internal temperature of the battery core exceeds a set thermal runaway blocking threshold value. According to the invention, the thermal fuse is arranged in the core loop of the battery, so that the internal temperature rise can be quickly and accurately responded, the circuit can be timely cut off, thermal runaway is effectively prevented, and the body safety of the battery cell is greatly improved. The safety performance of the module formed by the battery cell is obviously enhanced.

The utility model relates to temperature fuse technical field especially relates to a temperature fuse and carrier tape, on -board, protection device. Temperature fuse includes: first electrode, second electrode, temperature sensing alloy and casing, the inside formation of casing has accommodation space, first electrode and second electrode all have opposite first end and second end, first electrode's first end and second electrode's first end opposite interval arrangement in accommodation space, temperature sensing alloy is located in accommodation space, and respectively with first electrode's first end, second electrode's first end electric contact, casing is located respectively and is set up with through -hole at first electrode's first end and second electrode's first end. Through above -mentioned setting, not only be favorable to improve the welding quality while reducing product size, still effectively improved the stability and performance of product.