158 results about "Self heating" patented technology

The present application relates to a kind of internal heating type continuous rotary heating process and device, device includes self-heating graphite tube rotary drum, electrode bar, the inner cylinder of the self-heating graphite tube rotary drum is graphite tube, both ends of the graphite tube are connected electric slip ring, and are heated by electrode bar power supply.The present application provides a kind of internal heating type continuous rotary heating device compared with prior art, the inner cylinder of the self-heating rotary kiln of the present application adopts graphite material, graphite cylinder both ends adopt slip ring power supply, graphite tube relies on its resistance heating, and heating electric power is adjusted according to set furnace temperature.The furnace temperature of the present application can be high, can be low, from several hundred degrees to thousands of degrees (2000 ℃ above) can be continuously adjusted, heated material can be powder or granular material, protective gas is inhaled in furnace, presents slightly positive pressure or slightly negative pressure, since it can be isolated air, especially suitable for the coating of carbon material, low-temperature carbonization, high-temperature carbonization can also realize the heating treatment of other materials.

The invention discloses a hydrogel-based low-temperature high-steam self-heating eyeshade and a preparation method thereof, and belongs to the technical field of personal care supplies, and the self-heating eyeshade sequentially comprises a breathable outer layer, a self-heating body and a composite dressing from outside to inside. The composite dressing is formed by tightly attaching a hydrogel functional layer and a supporting layer. According to the self-heating eyeshade, through the collaborative design of all the functional layers, the composite dressing is arranged between the self-heating body and the skin, so that heat preferentially drives hydrogel moisture to evaporate; meanwhile, the hydrogel three-dimensional network structure provides a huge specific surface area, the low-temperature evaporation efficiency is effectively improved, and steam explosion is avoided and stable and continuous output is achieved by regulating release kinetics through bound moisture. The working temperature of the self-heating eyeshade is stably maintained within the range of 37-45 DEG C, the steam quantity can be 2-2.4 times that of a traditional product under the low-temperature condition, and the self-heating eyeshade has remarkable advantages in key performance such as safety, comfort, steam durability and steam quantity.

The temperature-adjustable self-heating portable moxibustion device comprises a sealing shell and a moxibustion box arranged in the sealing shell, the moxibustion box comprises a box body, self-heating materials are filled in the box body, the top and the bottom of the box body are sealed, the top and / or the bottom of the box body are arranged in a split mode, the side wall of the box body is provided with an air vent, and the air vent is communicated with the box body. A ventilation interlayer used for shielding the ventilation opening is fixed to the box body, and an adjusting piece is connected to the outer side face of the box body in a sliding mode and can move along the outer side face of the box body so as to adjust the ventilation area of the ventilation opening. And a medicine patch layer and an adhesive layer are arranged on the bottom surface of the box body in a partitioned manner. The self-heating portable moxibustion device is small, portable, convenient to process, free of open fire, safe and smokeless, a user can use the moxibustion device anytime and anywhere, the moxibustion box is pasted on the surface of skin, the self-heating material releases heat and rises temperature after making contact with air, effective ingredients of the medicine patch layer are promoted to permeate into the skin, the ventilation area of the ventilation opening is changed by rotating the adjusting piece, and the self-heating effect is achieved. Therefore, the maximum temperature and the heating duration are regulated and controlled, and operation is easy and convenient.

The utility model discloses a self-heating food packaging box, which belongs to the technical field of self-heating packaging boxes and comprises a bowl body, a bowl cover is movably arranged at the top of the bowl body, a staple food box positioned under the bowl cover is arranged in the bowl body, and a heating mechanism positioned under the staple food box is arranged at the bottom in the bowl body. Four groups of independent spaces for storing auxiliary materials, staple food, a heating agent and a water source bag are arranged on the self-heating food box, four groups of tearing films are adopted to seal the four groups of spaces, four groups of drawing ropes are fixedly connected to the outer wall of the easy-to-tear film, the free ends of the drawing ropes are converged and connected to a drawing block, the drawing block is arranged on the outer wall of the food box, and the self-heating food box is convenient to use. A user can drive the four groups of easy-to-tear films to be opened and drawn out of the meal box at a time through the drawing block, auxiliary materials and staple food are combined together, a water source makes contact with a heat generating agent to generate heat, heating of self-heating food can be completed through one action, and the dining experience and the dining efficiency are improved.

The utility model discloses a self-heating sneaker, which relates to the technical field of sneakers and comprises a sneaker body and an inner cavity, a sole is connected below the sneaker body, a toe cap is arranged at one end of the sole, and a heel is arranged at the other end of the sole. According to the self-heating sports shoes, the first heating plush made of far infrared radiation acrylic fibers can keep the feet warm, the far infrared radiation acrylic fibers are made of materials obtained by adding far infrared radiation ceramic particles into acrylic fibers, heat of the human body and heat of the surrounding environment can be absorbed to keep the feet warm, the temperature is moderate, and the health care effect is good. Meanwhile, the heat of the first heating plush can be transferred into the second heating plush through the interlayer, double-layer heat preservation is provided, then the contact face between the first heating plush and the surrounding environment and the contact face between the second heating plush and the surrounding environment are improved through the breathable layer, the breathability is improved, stuffy sweat is not prone to occurring, and the comfort and the heat preservation performance of the sports shoes are improved.

The utility model discloses a highly durable and slightly waterproof winter carpet which comprises a carpet body, the carpet body is composed of a surface layer, a filling layer, a base layer, a liner layer and a backing layer, the bottom of the surface layer is provided with the filling layer, and the bottom of the filling layer is provided with the base layer. The carpet body is composed of the surface layer, the filling layer, the base layer, the liner layer and the backing layer, the surface layer made of wool remarkably improves water absorption, breathability and heat preservation effect of the carpet, and the filling layer made of chitosan has the characteristic of self-heating after water absorption and provides a certain antibacterial effect. The base layer and the back lining layer which are made of polypropylene materials ensure that the carpet is not prone to deformation, the waterproof performance of the carpet is guaranteed, meanwhile, the liner layer made of polyurethane foam materials can effectively absorb external pressure, and the comfort and the buffering effect are improved. Therefore, the durability, the use effect, the heating property and the antibacterial property of the winter carpet are remarkably improved.

The utility model relates to an instant heating type soup cup which comprises a main body, a cup cover and a cup cover. The bottom of the main body is covered with the base, a heating cavity is formed in the middle of the base, a liquid storage cavity is formed in the periphery of the heating cavity, a self-heating bag is arranged on the heating cavity, a water injection hole used for being communicated with the heating cavity is formed in the liquid storage cavity, and an easily-punctured water sealing film used for sealing the water injection hole is arranged on the water injection hole; the puncturing needle faces the easy-to-puncture water sealing film, and the main body and / or the base are / is provided with an easy-to-pull supporting strip used for keeping a gap between the main body and the base so that the puncturing needle and the easy-to-puncture water sealing film can be separated from each other. When the self-heating bag is used, the easy-to-pull supporting strip is torn off, the main body and the base are mutually and tightly covered, the puncturing needle can downwards puncture the easy-to-puncture water sealing film, liquid in the liquid storage cavity automatically flows to the heating cavity under the action of gravity and is in contact with the self-heating bag, and manual water adding operation is not needed in the whole process; and the occurrence of scald accidents is effectively avoided.

An infrared thermal imaging target is composed of a target body and a target plate, the target body is made of a good thermal conductor material, the target plate is made of a poor thermal conductor material, and the target body is installed on the target plate. Holes are cut in the 10-ring target center area of the target, a window hole used for containing the spontaneous heating material bag is cut in the target plate, when the infrared thermal imaging sighting telescope is used for shooting training, the spontaneous heating material bag is placed on the back face of the target through the window hole, and the spontaneous heating material bag releases heat through oxidation reaction and transmits the heat to the whole target. Due to the fact that the 10-ring target center area is cut into the holes, heat cannot be transmitted to the hole area, the thermal infrared characteristic that the temperature is lower than the temperature of the target is shown in the infrared thermal imaging sighting telescope, and the thermal infrared characteristic is shown in the infrared thermal imaging sighting telescope. Therefore, the target is a shooting training target for indicating a thermal infrared target for a shooter who carries out shooting training by using the infrared thermal imaging sighting telescope.

The invention provides a self-heating anti-freezing drainage pipeline system for a plateau permafrost region and a control method of the self-heating anti-freezing drainage pipeline system, and belongs to the technical field of engineering drainage in cold regions. According to the self-heating anti-freezing drainage pipeline system for the plateau permafrost region and the control method of the self-heating anti-freezing drainage pipeline system, the self-heating anti-freezing drainage pipeline system comprises a self-heating pipeline module, an energy supply module and an intelligent control module, and the self-heating pipeline module comprises a pipeline body and an integrated electric heating layer. By arranging the pipeline system composed of the self-heating pipeline module, the energy supply module and the intelligent control module, the integrated effect of energy self-supply, intelligent sensing and active anti-freezing in the plateau frozen soil area without the power grid is achieved, the unfreezing rate is calculated through captured data through configuration of the intelligent control module, and the unfreezing efficiency is improved. The parameter dynamically reflects the efficiency of freezing and melting, so that the system can accurately put energy based on the efficiency, and the problems of energy dependence and anti-freezing reliability are fundamentally solved.

The utility model provides a heating assembly and an electronic atomization device, the heating assembly comprises a support and a heating body, and one side of the support is provided with an atomization groove penetrating to the two ends in the axial direction; the heating body comprises a heating part covering the atomizing groove and two supporting parts arranged at the two ends of the heating part in the extending direction of the atomizing groove, each supporting part is bent and extends along the periphery of the support from the heating part, and the supporting parts and the support are fixedly assembled. The heating body comprises a heating part which covers the atomization groove and is used for providing heat and further comprises two supporting parts which are arranged on the two sides of the heating part in the extending direction of the atomization groove, each supporting part is attached to the periphery of the support and extends in a bent mode, the supporting parts and the support are fixedly assembled, and therefore the whole heating body and the support can be fixedly assembled, and the heating effect is improved. The structural stability of the heating body can be ensured through the supporting part, and the heating part is prevented from deforming, warping and the like; the transverse size of the heating body is reduced, the compactness of the overall structure of the heating assembly is improved, and miniaturization design can be achieved conveniently.

The invention provides a resistance self-heating type solid hydrogen storage reactor, which belongs to the technical field of hydrogen energy storage and comprises a solid hydrogen storage component, a heat management component and an electric heating component. The porous solid hydrogen storage material is a magnesium-based composite material doped with coal ash and slag, has a porous structure and intrinsic conductivity, and realizes rapid and uniform spontaneous heating through a Joule effect; the heat exchange plates and the hydrogen storage materials are alternately distributed, a circulating pump drives a heat exchange medium and a phase change material storage tank to form closed-loop heat management, and heat recovery in the hydrogen storage stage and heat supply in the hydrogen desorption stage are achieved; the electric heating unit supplements Joule heat through an external power supply, and the operation state is controlled in real time in combination with the temperature regulation and control module. The problems of thermal response lag, uneven temperature and high energy consumption of traditional solid hydrogen storage are solved, the hydrogen storage / desorption rate, the cycle stability and the energy utilization efficiency are remarkably improved, and the method is suitable for large-scale long-period hydrogen storage of renewable energy sources.

The utility model discloses an energy storage battery container applicable to an energy storage system, which comprises a frame and a radiating tube, the frame is provided with a plurality of mounting areas for mounting battery modules, two ends and the front side of the frame are open, the radiating tube is arranged on the rear side of the frame, an air inlet is arranged at the upper end of the radiating tube and is used for being connected with refrigeration equipment, and the radiating tube is connected with the refrigeration equipment. A plurality of air outlets are formed in the side walls, facing the installation areas, of the heat dissipation pipes, and each installation area is correspondingly provided with at least one air outlet. The cooling airflow is used for dissipating heat in the mounting area, the temperature of the whole frame and the temperature of the battery module located in the mounting area are effectively reduced, spontaneous combustion caused by spontaneous heating of the battery module is avoided, and the ignition risk is reduced.

The application discloses a charging pile safety control method and system based on multi-source data fusion, and belongs to the technical field of data analysis. The method first collects temperature of temperature measuring points, environmental temperature and insulation resistance in the charging process and carries out pretreatment. Secondly, the heat propagation delay between the temperature measuring points is calculated by using the cross-correlation function, and a heat propagation topology graph is constructed to identify the root heat source and the subordinate heat source. Then, the temperature data is decomposed into the self-heating component and the propagation heat component based on the topological sorting, and the heat contribution weight and the charging safety index of each temperature measuring point are calculated. Finally, the charging current adjustment amount is calculated according to the deviation of the charging safety index and the safety threshold, and the output current of the charging pile is dynamically adjusted. The application realizes the closed-loop safety control of the charging process, and can improve the safety and reliability of the charging pile operation.

A reusable self-heating infrared thermal imaging precision target is composed of a target body, a self-heating material bag and a target plate. An aiming point is arranged on the target, the target is pasted on the target plate, and the self-heating material bag is pasted on the target; or the target paper is pasted on the target, the self-heating material bag is pasted on the target paper, the position where the self-heating material bag is pasted on the target paper is provided with the area identification, and the area identification is arranged in an isosceles triangle shape according to the right upper portion, the left lower portion and the right lower portion; silicone oil or other materials with smooth surfaces are coated on the surface of the whole target paper or in the area of the area mark, so that the non-setting adhesive is prevented from being adhered to the target paper, the non-setting adhesive is ensured to be easily separated, and the self-heating material bag is replaced. The device has the remarkable characteristics and advantages of mature technology, stability, reliability, no need of an external power supply, no need of technical guarantee, no need of maintenance, convenience and rapidness in use, low cost and the like, effectively solves the problem that the infrared thermal imaging sighting telescope does not have a shooting training target, and fills the military police training blank.

The utility model relates to a vacuum pump with a self-heating heat exchange function device in the field of vacuum pumps, which comprises a cabinet, a first pump body and a second pump body, a controller is arranged on the side face of the cabinet, and a central heat exchanger is arranged in the cabinet. The first pump body and the second pump body communicate with the central heat exchanger through a first connecting pipe and a second connecting pipe correspondingly, a gas heat exchange assembly is arranged in the central heat exchanger, a heat exchange cooling area is formed in the central heat exchanger, a cooling circulation pipe is arranged on the side face of the central heat exchanger, and the cooling circulation pipe is connected with a first-stage heat exchanger. The first pump body is connected with a central heat exchanger, the second pump body is connected with a heat exchange silencer, a gas silencing heat exchange assembly is formed in the heat exchange silencer, a heat exchange circulating pipe is arranged on the side face of the heat exchange silencer, and the heat exchange circulating pipe is connected with a second-stage heat exchanger. And the energy utilization efficiency of the system is improved.

This invention relates to the field of cable technology, and in particular to a self-heating phase change energy storage winding charging cable and its preparation method. From the inside out, the cable comprises a conductor core, an insulation layer, a spiral tensile thermally conductive skeleton, a phase change energy storage thermally conductive layer, a PTC self-regulating heating layer, a thermal insulation layer, and an outer sheath layer. The spiral tensile thermally conductive skeleton is integrally formed with radial thermally conductive fins. A high thermal conductivity carbon fiber mesh is embedded inside the phase change energy storage thermally conductive layer. A temperature sensing layer is provided between the PTC self-regulating heating layer and the phase change energy storage thermally conductive layer. The thermal insulation layer has a double-layer composite structure, and an anti-freeze and wear-resistant buffer layer is provided on the inner side of the outer sheath layer. All layers are coaxially integrated and tightly bonded, forming a closed-loop energy management system. This invention provides long-lasting power-off insulation, completely solving the problem of winding in extremely cold conditions; uniform heating without overheating, significantly improving safety performance; energy saving and consumption reduction, lowering usage and production costs; enhanced mechanical properties, suitable for extremely cold winding scenarios; and intelligent integrated control, requiring no manual intervention.

The invention discloses a blasting bead bubble cap, a preparation method thereof and application of the blasting bead bubble cap in a self-heating patch, and relates to the technical field of blasting bead bubble caps, and the blasting bead bubble cap structurally comprises an upper layer fabric, a middle layer core material and a bottom layer fabric; the upper-layer fabric comprises any one of printed leather, printed spunlace, white spunlace, white leather and non-woven fabric; the middle-layer core material is composed of hole digging sponge and blasting beads embedded in holes of the hole digging sponge; the bottom layer fabric is composed of a spraying film and an adhesive layer prepared on the surface of the spraying film through an adhesive dispensing technology. The self-heating patch can be applied to any one of a steam hot-compress eye patch, a hot-compress warm protection patch, a hot-compress neck warming patch, a hot-compress knee warming patch, a hot-compress waist and abdomen patch, a hot-compress ankle patch and a hot-compress wrist patch.

The utility model relates to the technical field of artificial leather, and discloses highly cold-resistant PVC artificial leather with a multilayer structure, which comprises a PVC surface layer, a windproof layer adhered to the bottom of the PVC surface layer, a PVC foaming layer adhered to the bottom of the windproof layer, a PVC compact layer adhered to the bottom of the PVC foaming layer, an antibacterial layer adhered to the bottom of the PVC compact layer, and a self-heating fiber layer adhered to the bottom of the antibacterial layer. The bottom of the self-heating fiber layer is bonded with a heat preservation layer, and the bottom of the heat preservation layer is bonded with a base cloth layer. By adding the windproof layer and the heat preservation layer in the artificial leather, the artificial leather has stronger windproof and heat preservation effects, the cold resistance of the artificial leather is improved through the stronger windproof and heat preservation effects, and meanwhile, after the spontaneous heating fiber layer in the artificial leather absorbs sweat, heat in sweat can be stored in the artificial leather, so that the heat preservation effect of the artificial leather is improved. And the artificial leather has moisture absorption and heat release properties, so that the cold resistance of the artificial leather is improved.

The invention discloses a heating system and a heating method for simulating a water loss accident, and belongs to the technical field of nuclear fuel circulation and irradiation effect research, the heating system comprises a fuel rod, the fuel rod comprises a fuel cladding and a fuel core body, the fuel rod is arranged in a quartz tube sample cavity, the whole fuel rod is arranged in a reaction furnace body, and an infrared temperature detector monitors the temperature in real time through a peep window; and data is fed back to the processing box to dynamically adjust power output. The fuel rod is used as a resistance material, low-voltage alternating current is applied, self-heating is achieved through the Joule effect, heat transfer lag of a traditional heating mode is eliminated, the infrared temperature detector monitors the temperature in a non-contact mode through the squint window and feeds back the temperature to the processing box in real time to dynamically adjust power output, and closed-loop control is formed. And the ultrafast temperature rise requirement under the water loss accident working condition is accurately simulated.

The invention discloses a cold region battery thermal management system and method based on a heating film and a phase change material. The system comprises a preheating device, a cooling device, a power battery and a standby battery, the power battery is arranged in the preheating device, and the cooling device is arranged between the power battery and the preheating device; the standby battery is independently arranged and serves as a power supply of the preheating device and the cooling device. Energy for temperature control of the power battery comes from the standby battery, the energy of the power battery is not consumed, and the endurance mileage of the electric vehicle is prevented from being reduced; after the power battery is heated and the temperature is controlled, the phase-change material is used for continuously preserving heat of the power battery; when the power battery is overheated due to spontaneous heating, the overheated power battery is timely cooled through the tubular cooling device, so that the temperature of the power battery is always maintained in a set range; the battery pack is of a multi-bin combined structure, if part of single batteries in the battery pack are damaged, only the corresponding battery bin needs to be replaced, the battery pack does not need to be integrally replaced, and therefore the maintenance cost of the battery pack is reduced.

The present invention discloses a tissue section specimen making device, which relates to the field of specimen making technology and includes: a lower box body, which is in the shape of a rectangular parallelepiped and has no top plate; an upper box body, which is in the shape of a rectangular parallelepiped and has no top plate and bottom plate, and the upper box body can be placed above the lower box body; a sheet spreading plate, which is arranged in the upper box body, and an upper retaining edge is arranged on the first edge of the sheet spreading plate, and a lower retaining edge is arranged on the second edge of the sheet spreading plate; the sheet spreading plate is fixedly connected to a rotating shaft, and the rotating shaft rotates with the upper box body; the upper retaining edge and the lower retaining edge are both parallel to the rotating shaft; an adjustment knob is fixedly provided at one end of the rotating shaft, and a gear is fixedly provided at the other end; a locking mechanism, which includes a locking plate, a first fixing bolt, a second fixing bolt and a torsion spring; a self-heating patch, and the self-heating patch is bonded to the bottom surface of the sheet spreading plate. The tissue section specimen making device of the present invention does not require the use of a power supply, is easy to use, easy to make, and has low cost.

The utility model discloses a self-heating life jacket which comprises a life jacket body and a self-heating device, the life jacket body is provided with a containing cavity, the self-heating device comprises a chemical material heating assembly and a seawater battery heating assembly, and the chemical material heating assembly and the seawater battery heating assembly are arranged in the containing cavity. The outer walls of the chemical material heating assembly and the seawater battery heating assembly are respectively contacted with the life jacket main body so as to transfer heat to the life jacket main body. According to the self-heating life jacket provided by the utility model, the self-heating device of the life jacket can be quickly started in a dual-heating mode, and the technical problems that the existing self-heating life jacket is long in response time, so that the starting time is longer, and rescue is not facilitated are solved.

The technical problem of the present disclosure is to reduce the difference in thermal history between a thermistor constituting a detection element and a thermistor constituting a reference element. [Solution] A gas sensor (1) is provided with: a detection circuit (10) including thermistors (Rd1, Rd2); heater resistors (MH1, MH2) for heating the thermistors (Rd1, Rd2), respectively; and a control circuit (20) that controls the connection relationship of the detection circuit (10) and the heating temperature of the heater resistors (MH1, MH2). The control circuit (20) heats the heater resistors (MH1, MH2) to 150 DEG C and 300 DEG C, respectively, during the period (T1), and connects the thermistors (Rd1, Rd2) in series. During the period (T2), the heater resistors (MH1, MH2) are respectively heated to 300 DEG C and 150 DEG C, and the connection relationship is switched so that the amounts of current flowing through the thermistors (Rd1, Rd2) are different. As a result, the difference between the self-heating amounts of the thermistors (Rd1, Rd2) during the period (T2) is reduced.

The invention relates to the technical field of lithium battery production, in particular to a heat preservation box for low-temperature testing of a lithium manganate single battery cell, a testing method and a device. The heat preservation box comprises a shell used for containing the lithium manganate single battery cell, and the shell at least covers a main body area, except for an external electric connection part, of the battery cell; the lining layer is arranged on the inner surface of the shell and is made of an aerogel material; the shell layer is arranged on the outer side of the lining layer and is made of plastic or a composite foaming material. According to the invention, the normal form of a traditional single-cell low-temperature test is fundamentally changed, a heat insulation environment similar to the interior of the Pack is constructed for the single cell by introducing the aerogel heat preservation box, and spontaneous heat generated when the cell works can be effectively accumulated. Therefore, the thermal behavior of the Pack is accurately simulated on the single cell level, and the temperature deviation between the traditional test and the practical application is thoroughly avoided.

The invention provides self-heating intelligent concrete with a gradient conductive structure and a preparation method of the self-heating intelligent concrete. The concrete is prepared from 20-30% of cement, 30-65% of aggregate, 0.5-10% of conductive filler, 0.5-1.5% of additive and water, the density of the aggregate is higher than that of the conductive filler; the aggregate is a mixture of coarse aggregate and fine aggregate; the coarse aggregate is gravel with the particle size of 5-20 mm, the mass ratios of the aggregate with the particle size of 5-10 mm, the aggregate with the particle size of 10-14 mm, the aggregate with the particle size of 14-16 mm and the aggregate with the particle size of 16-20 mm are 25-35%, 20-30%, 15-25% and 20-30% respectively, and the total amount of the four kinds of particle sizes is 100%; the fine aggregate is electric furnace steel slag, and the particle size of the fine aggregate is 0.075-5mm. Based on the natural settling effect of the aggregate under the gravity effect, the spatial non-uniform distribution of the conductive phase in the concrete is realized, and a gradient conductive network structure of which the conductivity is gradually attenuated from top to bottom is constructed. A gradient heating response area can be formed after electrification, the differentiated heating requirements of different depths or positions are met, and the device is particularly suitable for being applied to an intelligent structure with gradient requirements for thermal field distribution in a cold region or a water conservancy project.

The invention discloses a multi-sensor fusion intelligent metering box state monitoring method and device. A plurality of intelligent metering boxes are divided into a plurality of distance groups according to the distance relation between position information; dividing the distance group into a plurality of temporary energy consumption groups according to the size relationship between the energy consumption information within a preset time length; receiving temperature information sent by the communication modules in the plurality of intelligent metering boxes in the temporary energy consumption group within a preset time length, and judging whether temperature abnormity occurs or not according to the difference between the plurality of pieces of temperature information; according to the multi-sensor fusion intelligent metering box state monitoring method and device provided by the invention, the energy consumption of the intelligent metering boxes in the temporary energy consumption group is approximate, so that the self heating of the plurality of intelligent metering boxes in the temporary energy consumption group is approximate; at the moment, the temperature information difference of different intelligent metering boxes in the temporary energy consumption group reflects whether the temperature of a single intelligent metering box is normal or not.

The present invention provides a protective element which can interrupt a current pathway quickly and reliably using a fusible conductor having a high-melting-point metal layer and a low-melting-point metal layer, and which can also be manufactured through a simple process.　A protective element (1) comprises an insulating substrate (2), a heating element (5), first and second electrodes (3, 4), a heating element lead electrode (6), and a fusible conductor (7) that melts, and thus interrupts a current pathway, due to self-heating and / or heating by the heating element (5) caused by application of an overcurrent exceeding the rated current, wherein the fusible conductor (7) has a laminated structure of a high-melting-point metal layer (10) and a second low-melting-point metal layer (12), the fusible conductor (7) is connected on top of the first electrode (3), on top of the second electrode (4), and on top of the heating element lead electrode (6) via the second low-melting-point metal layer (12) in an orientation such that the second low-melting-point metal layer (12) faces the insulating substrate (2), with at least part of the second low-melting-point metal layer (12) being in direct or indirect contact with the insulating substrate (2) in the space between the first electrode (3) and the heating element lead electrode (6) and in the space between the second electrode (4) and the heating element lead electrode (6).

The invention provides electromagnetic induction heating non-combustion tobacco shreds and a preparation method and application thereof. The method comprises the following steps: mixing metal particles, a first solvent and a surface modifier, and drying to obtain a modified self-heating filler; mixing the modified self-heating filler with a heat conduction reinforcing agent to obtain a composite powder material; mixing the composite powder material with a colloidal solution to obtain a heat-conducting and electric-conducting adhesive; and mixing the heat-conducting and electric-conducting adhesive with tobacco powder, adding alcohol and a second solvent, mixing, and carrying out post-treatment. According to the self-heating electromagnetic induction heating scheme with enhanced heat conduction, more efficient heat conduction capacity and heating capacity are achieved, the heating efficiency of the electromagnetic induction heating non-combustion electronic cigarette is improved, the overall heating effect and user experience are improved, and the market application potential is large.

The present application relates to the technical field of self-heating product, and specifically discloses a dry preparation method of self-heating film, which comprises the following steps: mixing a plurality of raw materials to obtain mixed powder; pressing the mixed powder to form a base film; cutting the base film to obtain a high water-absorption self-heating film core; placing an electrolyte solution on the high water-absorption self-heating film core, first into an inner bag made of a microporous oxygen-permeable film covered with non-woven fabric, and then wrapping an outer bag of oxygen-blocking plastic, thereby obtaining the self-heating film. The dry preparation method of the self-heating film improves the uniformity of the mixed powder, avoids the generation of heat during the preparation stage due to the presence of water, enhances the heating performance of the self-heating film, and uses temperature-controlled water-absorption resin to release water when the temperature of the self-heating body reaches above body temperature, thereby prolonging the self-heating time and solving the problem of limited release of the electrolyte solution caused by the high water-retention of ordinary water-absorption resin.

The invention discloses an outdoor efficient heat dissipation power distribution cabinet for a micro-grid, and relates to the field of power distribution cabinets, a ventilation reserved window part is installed on the outer side of the ventilation reserved window part, and heat conduction work is carried out through the ventilation reserved window part; an external butt joint water tank is fixedly connected to the outer side of the lower end of the outer side of the ventilation reserved window component, a reserved atomization supply pipe penetrates through the lower end of the external butt joint water tank, a built-in reserved heated air bag component is arranged on the inner side of the ventilation reserved window component, and an isolation butt joint assembly is rotationally connected to the inner side of the ventilation reserved window component. The outdoor high-efficiency heat dissipation power distribution cabinet for the micro-grid is provided with a self-adaptive guide structure, so that heat inside the power distribution cabinet is quickly dissipated outwards, the situation that the temperature is high due to the fact that the self-heating amount is large during operation of the micro-grid power distribution cabinet is avoided, a self-adaptive constant-temperature conduction state is achieved, and the signal state of electrical components inside equipment is protected; and the overall structure is improved to meet the environmental requirements of precise components.