14results about How to "Fast thermal response" patented technology

The utility model belongs to temperature monitoring technical field discloses a kind of lithium battery temperature real-time monitoring equipment, including shell, shell inner wall is connected with lithium battery group, the center position of lithium battery group one end is connected with heat conduction block, and the outer end of lithium battery group is connected with multiple ducts, the scheme is in lithium battery group outside along the length direction of battery Multiple fitting ducts are laid out, and heat-conducting oil is filled in duct interior, the joint action of heat-conducting oil and heat block, the heat generated by battery surface local is quickly, evenly guided to heat conduction block and thermistor, the efficient real-time monitoring of whole battery temperature is realized, the structure can greatly improve the response speed to local overheating phenomenon, reduce the error caused by point measurement delay or measuring point offset, with fast thermal response, high thermal coupling degree, strong adaptability Advantage, significantly enhance the safety and stability of lithium battery system under complex working conditions.

The utility model discloses a kind of adaptive control circuit of heating body, including MCU temperature control circuit, temperature control circuit, temperature feedback device, current detection circuit, voltage detection circuit, protection detection circuit and temperature display device.The control circuit can automatically identify the heating core type connected, according to the deviation of set temperature and actual temperature output PWM control signal, drive temperature control circuit to carry out temperature rising or cooling adjustment;Temperature, current, voltage are monitored in real time by a variety of detection circuits, and protection mechanism is started under abnormal state, simultaneously, working state is fed back in real time by display device.The control circuit is strong in adaptability, safe and reliable, and is applicable to a variety of heating application scenarios.

This invention relates to a gradient self-heating material based on phase change-oxidation synergistic regulation, its preparation method, and its application. The gradient self-heating material based on phase change-oxidation synergistic regulation comprises a core layer, a transition layer, and a shell layer connected sequentially; wherein the core layer is a reduced iron powder-phenolic resin composite layer; the transition layer is a gradient transition structure of iron powder, CNT-graphite composite material, and resin; and the shell layer is a catalytic phase change material particle-resin composite layer; the volume percentages of the shell layer, transition layer, and core layer are 20%-30%, 20%-30%, and 40%-60%, respectively. The problem this invention aims to solve is overcoming the interfacial failure challenge between the oxidant and the phase change material through chemical bonding reconstruction, breaking through the thermal accumulation bottleneck by employing a gradient thermal conductivity structure design, and achieving cross-scale synergy across four dimensions: exothermic reaction, heat storage phase change, heat conduction, and dynamic regulation. The final product's thermal response time (temperature greater than 50℃) is <30 seconds.

The invention provides an automobile air pipe structure with a heater, which comprises an air pipe, a mounting platform of the air heater is integrated on the air pipe, the mounting platform of the air heater and the air pipe are integrally formed by injection molding, and a radiator of the air heater is positioned on an air circulation path in the air pipe. And an opening for inserting the air heater into the mounting platform is formed in the air pipe. The automobile air pipe structure with the heater is suitable for a warm air conveying system of an electric automobile or a traditional fuel vehicle, the PTC heating core body is directly integrated in the air pipe, the heat transfer path is shortened, and the energy efficiency is improved; and meanwhile, the temperature control design is simplified by utilizing the self-temperature-limiting characteristic of the PTC, the space and the cost are saved, and firm installation, efficient heat exchange, safety and reliability can be ensured.

The utility model relates to the technical field of heating bodies, in particular to a stainless steel heating tube, which comprises a flange and a tube blank, one end of the tube blank is integrally connected with the flange, the other end of the tube blank extends outwards to form two symmetrically arranged leading-out buckles, the flange and the tube blank are made of stainless steel materials, and the flange and the tube blank are made of stainless steel materials. An isolation insulating layer, a heating layer and an outer insulating layer are sequentially printed on the annular outer surface of the tube blank in a thick film mode, the heating layer comprises a plurality of extraction electrodes and at least one set of resistance circuits, and each extraction electrode is connected with the corresponding resistance circuit. The stainless steel heating tube is simple in structure, compared with a traditional ceramic heating tube, the heat conductivity is high, the temperature rising speed is high, the wall thickness of a tube blank can be reduced to 0.15 mm or below, the size precision is accurately controlled, and meanwhile it can still be guaranteed that the heating tube has good mechanical strength.

The utility model discloses a fixing roller structure, including fixing roller and mounting seat, its characterized in that, the mounting seat designs and has the axle hole with fixing roller and the gasket and carries out the movable assembly through bearing, fixing roller is the metal roller that has the fixing film function layer solidified to the outer surface, fixing film function layer and metal roller still between the setting have the base coat, the base coat is the metal ceramic material of aluminium oxide or nickel chromium alloy and forms through plasma spraying process, and fixing film function layer is formed on the base coat. The utility model discloses through fixing film and fixing roller and make integral type to avoid the problem, such as deviation, easy wrinkle, rupture and paper jam, etc. that the film type fixing film of the previous set appears, and it can also realize the fast heat response, because the fixing film that sprays and forms is close to the fixing roller made of metal, in addition, because the base of hard coating, fixing film function layer can resist physical damage, that is, resistant to paper edge scraping, not easy to break.

The application discloses a temperature control jig, which comprises a top plate, an intermediate layer and a bottom plate arranged in layers, wherein the top plate and the bottom plate are flat plate structures, a frame is arranged along the edge of the top plate, one side surface of the frame protrudes from the surface of the top plate, the top plate and the frame form a containing space for containing a display panel to be tested, a plurality of heat conduction columns are arranged on the side surface of the bottom plate away from the intermediate layer, and the intermediate layer is provided with a plurality of arrayed through holes, so that the cross section of the intermediate layer is a grid structure. The grid design of the intermediate layer of the temperature control jig greatly reduces the overall mass and heat capacity of the jig, so that heat can be more quickly conducted to the top plate through the bottom plate heat conduction columns, and the temperature rising and falling waiting time is shortened. Moreover, when the grid structure is heated and expanded, the through holes provide internal deformation space, effectively avoiding macro warping of the jig as a whole, and ensuring flat and close fitting of the panel and the jig during the test.

The utility model belongs to temperature control device technical field belongs to a peltier temperature control module, including substrate, square hole slot piece, peltier unit, copper base heat conduction sheet, temperature sensor, heat insulating layer and radiating component, square hole slot piece is embedded to one side frame of substrate, peltier unit and copper base heat conduction sheet are closely bonded through heat conduction silicone grease layer, heat insulating layer is embedded to square hole slot piece middle part, peltier unit is embedded in heat insulating layer center recess, temperature sensor and copper base heat conduction sheet pressure -sintered connection, temperature sensor and peltier unit electric connection, radiating component is connected in the other side of substrate and is contacted with peltier unit, is used for radiating cooling. The utility model can solve the low heat conduction efficiency, temperature response slow, control precision is insufficient and so on in prior art.

This utility model relates to the field of die casting technology, and provides a temperature control structure for die casting molds and a die casting mold. The die casting mold has a fixed mold frame, a moving mold frame, and a product cavity. The product cavity is located between the fixed mold frame and the moving mold frame. The temperature control structure includes: a heat insulation plate, which is placed between the fixed mold frame and the die casting machine to block the heat transfer from the die casting mold to the die casting machine; a core, one end of which extends into the product cavity to form a hole-like structure on the casting; a water channel is provided inside the core, and at least part of the inner wall of the water channel is provided with concave and convex structures distributed around the core axis. The cooling medium flows through the water channel to cool the core; the concave and convex structures form local reinforcing ribs or support points on the inner wall of the water channel, which improves the structural rigidity and deformation resistance of the core under high temperature and high pressure loads, making it possible to appropriately reduce the core wall thickness while ensuring the overall strength; the wall thickness reduction can effectively shorten the heat conduction path and improve the thermal response speed of the mold.

The application discloses a phase transition heat response gel based on an ion liquid / water binary solvent and a preparation method and application thereof, and the phase transition heat response gel system comprises N-isopropyl acrylamide (NIPAm) monomers, an initiator, an accelerator, an ion liquid and water. NIPAm is used as a heat response unit, and the ion liquid is introduced to replace a crosslinking agent commonly used in polymerization of a hydrogel, multiple hydrogen bonds and ion interaction formed between the ion liquid and a poly-N-isopropyl acrylamide (PNIPAm) chain endow the system with phase transition characteristics. The phase transition heat-induced color change intelligent window prepared by the application has the characteristics of high light transmittance, fast response, adjustable response temperature and good stability, and the phase transition heat-induced color change intelligent window overcomes the defects that a traditional heat-induced color change hydrogel is seriously shrunk in volume and the heat-induced color change performance is reduced after long-term heat-induced color change cycles, and provides certain technical support for application of the heat-induced color change intelligent window.

The application relates to a composite liquid carrier with a built-in volatile channel and a heating assembly, and belongs to the technical field of electronic cigarettes or aromatherapy equipment. The assembly comprises a liquid carrier integrally formed with the heating assembly, and a sealing coating covering the surface of the carrier and having a thermally induced phase change characteristic. At normal temperature, the sealing coating is in a solidified state, closes the volatile channel in the interior of the carrier, and inhibits the self-volatilization of the liquid; when the heating assembly is powered on to work, the coating is melted or softened by heat, automatically opens the volatile channel, and makes the liquid smoothly volatilize; after the heating is stopped, the coating is solidified again, and the channel is closed again. Through the synergistic effect of the integrally formed structure and the reversible thermally induced phase change coating, the on-demand and dynamic control of liquid volatilization is realized, the problem of serious static volatilization in the non-working state in the prior art is effectively solved, the invalid loss is significantly reduced, the service life of the product is prolonged, and the thermal response efficiency and the energy utilization rate are improved.

The invention provides a preparation method of a temperature and pressure integrated sensor, and the method comprises the steps: providing a temperature sensing module which comprises a temperature sensing probe, and the temperature sensing probe comprises a first pin and a second pin which are sufficient in length; performing film coating treatment on the first pin and the second pin; the first pin and the second pin are packaged to form an L-shaped back-to-back structure, and each of the first pin and the second pin comprises a first part, a second part and a bending part connected with the first part and the second part; a base is provided, the base comprises a first protruding column, a second protruding column and a plurality of PIN penetrating holes, the first protruding column, the second protruding column and the PIN penetrating holes penetrate through the base, and the first protruding column and the second protruding column are electrically connected with the second portion of the first pin and the second portion of the second pin respectively; and providing a pressure sensing module which is formed by silk-screen and sintering on the base and is electrically connected with the plurality of PIN through holes. And the function failure of the temperature and pressure integrated sensor caused by the failure of additional welding spots can be fundamentally avoided.

The application discloses a PCR fast-response micro NTC temperature sensor with low-thermal-conductivity wires, which is characterized by comprising an NTC thermistor chip, two wires connected to the electrodes on the two sides of the NTC thermistor chip, an insulating layer covering the outer wall of the wires, and a packaging protection structure; the metal core wire of the wire is a low-thermal-conductivity alloy wire, and the thermal conductivity of the low-thermal-conductivity alloy wire is 5 W / m K to 50 W / m K. The traditional copper and nickel core wire is replaced by any low-thermal-conductivity alloy wire, such as phosphorus bronze, beryllium copper, brass, white copper, zinc white copper, constantan, copper-silver alloy, copper-iron alloy and copper-gold alloy, with a thermal conductivity of 5 W / m K to 50 W / m K. The wire thermal transfer rate is reduced, the thermal resistance between the NTC chip and the external low-temperature environment is increased, the interference of the wire on the temperature field is weakened, the wire heat loss is reduced, the sensor thermal time constant is shortened, and the thermal response speed is improved.

The invention provides a preparation method of an aramid fiber-based ultrathin electrothermal film and the obtained electrothermal film. The preparation method comprises the following steps: S1, adding aramid fibers into a mixed solution of potassium hydroxide and dimethyl sulfoxide, adding isopropanol, unbundling to obtain aramid nanofibers, and carrying out reinforced dispersion to obtain an aramid nanofiber suspension; s2, adding pyrrole into the aramid nanofiber suspension, magnetically stirring, adding a ferric trichloride aqueous solution, and performing in-situ polymerization to obtain an aramid nanofiber coated polypyrrole suspension; and S3, adding the aramid nanofiber suspension into the aramid nanofiber coated polypyrrole suspension, forming a film, soaking the film in a polyvinylidene fluoride organic solvent solution, and polymerizing to obtain the electrothermal film. The contact resistance is low, the number of conductive paths is large, and the conductivity is good, durable and stable; the heating uniformity is good, the thermal response speed is high, and the electro-thermal conversion efficiency is high; the material consumption is small, the weight is light, the thickness is small, the cost is low, the flexibility is good, and the method is easy to process and widely applied to large-scale commercialization.