3411results about "Heating element shapes" patented technology

The invention discloses a direct-current charging device and a use method thereof, relates to the technical field of direct-current charging, and aims to solve the technical problem that the service life and safety are affected by continuous plugging after a charging plug is fully charged. According to the invention, safety and reliability are improved through cooperation of multiple structures; the isolation sleeve, the outer convex ring clamp and the expansion ring form multi-stage sealing, dust and water vapor are prevented from invading, and the connection stability is enhanced; the loose insertion structure is automatically disconnected after being fully charged by means of thermosensitive deformation, so that part loss caused by long-term insertion is avoided; the moisture absorption structure periodically works through the extrusion part, continuously adsorbs and discharges moisture, and protects the safety of a circuit; the pressure energy structure maintains short-time sealing of the expansion ring after power failure, and the protection time is prolonged. All the components are linked through heat transfer, the functions of sealing, disconnecting, moisture prevention and the like can be achieved without extra power, the use experience is optimized, various environment requirements are met, and the service life of equipment is prolonged.

The invention discloses a direct-current ice melting system of a subway overhead line system, which comprises an overhead line system and a running rail, and further comprises a subway rectification module and a direct-current ice melting module, the subway rectification module and the direct current ice melting module are connected with the contact network. The invention further discloses a direct-current ice melting method of the subway overhead line system. The direct-current ice melting device can stably output direct-current ice melting current in a large range to meet the ice melting requirements under different scenes, meanwhile, different wiring modes are adopted according to the ice melting requirements to melt ice on a plurality of contact nets or walking rails at the same time, and the operation time is saved.

Composite materials with noble metal coated silver nanowires loaded into polymer are described. The composite materials may have resistivities of no more than about 100 Ohm-cm, or from about 100 Ohm-cm to about 1×1011 Ohm-cm depending on the amount of noble metal coated silver nanowires loaded into the polymer. The noble metal coated silver nanowires may be platinum coated silver nanowires. Metal particulates such as silver flakes or silver particles may be added to the composite materials in order to obtain desired properties. Composite precursor compositions and methods for preparing the composite materials are described.

The invention discloses a high-power ceramic heater based on a new energy automobile and a manufacturing method of the high-power ceramic heater, and relates to the technical field of ceramic heater manufacturing. The invention comprises: a hollow tubular ceramic matrix; the temperature sensing layer, the first ceramic substrate, the heating layer, the second ceramic substrate, the first metal layer and the first electroplating alloy layer are sequentially attached to the outer side of the ceramic base body; the second metal layer and the second electroplating alloy layer are sequentially attached to the inner side of the ceramic base body. Through surface treatment of the novel heating slurry, the novel ceramic material, the metal layer and the electroplated alloy layer and innovative design of the integrated temperature sensing layer, the high-power ceramic heater is excellent in performance, service life, safety, temperature control and temperature impact resistance, and can cope with a harsh working environment; a more stable and efficient heating solution is provided; due to the innovative design, the ceramic heater is more reliable and durable under high-power, high-pressure and complex working conditions.

The invention relates to the technical field of electric heater preheating, in particular to an electric heater preheating system and method. Wherein the electric heater comprises a shell, an electric heating tube and a junction box; the preheating device comprises a hot air module, a control module, a pressure sensor, a temperature and humidity sensor and a switch valve. The hot air module comprises a draught fan, a heating piece and a connecting air pipe, and the connecting air pipe is connected with the first pipe opening so that hot air generated by the hot air module can be input into the shell through the first pipe opening. The second pipe orifice is used for discharging air, the pressure sensor and the temperature and humidity sensor are arranged at the second pipe orifice to detect a pressure value, a temperature value and a humidity value, and the switch valve is arranged at the second pipe orifice to adjust the opening and closing and / or the opening degree of the second pipe orifice. When the electric heater is in a shutdown state, the external preheating device is connected with the electric heater to form a preheating system, energy of a molten salt system does not need to be depended on, non-internal circulation air is utilized, and preheating and moisture removal of the electric heater are achieved.

An aerosol generating device includes: a case with an assembling opening in one end; and a heating assembly detachably mounted in the case so as to heat an aerosol generating substrate. The heating assembly includes a heating structure. The heating structure includes a heating portion for generating infrared light waves in a power-on state, and a sleeve for the infrared light waves to pass through. The heating portion is arranged in the sleeve and is at least partially spaced apart from a tube wall of the sleeve.

Disclosed are an aerosol-generating device and a heating structure. The heating structure includes a sleeve and a heating element at least partially spaced apart from the sleeve. The heating element includes a heating substrate configured to generate heat in a powered-on state, and an infrared radiating layer that is arranged on the outer surface of the heating substrate and configured to radiate infrared light waves. The sleeve is configured to allow the infrared light waves to pass through. The heating element is at least partially bent and has a first free end and a second free end, the sleeve has two end portions distributed along a longitudinal direction, and the first free end and the second free end are led out from a same end portion of the sleeve. According to the heating structure, the heating element is at least partially bent and the first free end and the second free end of the heating element can be led out from the same end portion of the sleeve, whereby the assembly process of the heating structure can be simplified and assembly costs can be reduced.

The present disclosure relates to an aerosol-generating device and a heating structure including a heating portion and two conductive portions; the heating portion has a spiral structure and is formed by winding at least one heating element; the heating element includes a heating substrate for generating heat in an electrified state, and an infrared radiation layer provided on an outer surface of the heating substrate for radiating infrared light waves; the heating portion includes a first end and a second end opposite to the first end; and the two conductive portions are connected to the first end and the second end of the heating portion, respectively, and extend in a same direction. By winding at least one heating element to form a heating portion having a hollow spiral structure, the heat transfer efficiency of the heating portion may be improved, and the overall reliability of the heating structure may be improved, such that the uniformity of the gap between the heating portion and the tube body may be maintained, and thus a temperature field may be kept uniform.

A method and system for preventing condensation of an ultrasonic liquid level meter. The method comprises: connecting a heat tracing unit to an ultrasonic liquid level meter, and deploying a temperature monitoring module; on the basis of a measurement result of the monitoring module, calculating the dew point of the surface of a probe of the ultrasonic liquid level meter; and comparing the dew point with the surface temperature of the liquid level meter measured by the monitoring module and, on the basis of a heating control execution module, performing dynamic temperature control. By means of deploying the heating unit and the temperature monitoring module, the present invention measures the surface temperature of the probe in real time and, on the basis of the calculated dew point, dynamically adjusts heating power, such that the surface temperature of the probe is higher than the dew point temperature, thus effectively avoiding condensation and solving the effect of environment temperature and humidity on the precision of liquid level measurement.

An electric heating assembly may include a sheath, a resistive wire, a thermally conductive electrical insulation, and a tubular body. The sheath may define an enclosed volume along a longitudinal length between a first end portion and a second end portion. The resistive wire may be disposed within the enclosed volume to generate heat in response to an electrical current. The thermally conductive electrical insulation may be radially positioned between the resistive wire and the sheath. The tubular body may be disposed radially inward from the sheath and define a vent channel extending from a vent inlet disposed within the sheath to a vent outlet held outside of the sheath.

A curb stone or paving stone charging device for charging an energy store of an electrically driven vehicle. The curb stone or paving stone charging device includes a main body, an inner receiving space which is delimited on a plurality of sides by the main body, a cover which closes the receiving space, a charging unit having components which are arranged in the receiving space, a charging socket which is connected mechanically at least indirectly to the cover, and a heating element which heats the cover. The main body is produced from a metal, a concrete, a natural stone, a plastic or a composite material.

The invention relates to the field of demonstration teaching aids, in particular to a pediatric orthopedic repair demonstration box which comprises a box body, a front chamber is formed in the middle of the front side of the box body, silos are rotationally connected to the upper portion and the lower portion in the front chamber, and mounting discs are mounted on the inner sides of the ends, close to each other, of the silos. The ends, close to each other, of the mounting discs are fixedly connected with a plurality of simulation blood vessels, electric heating wires are arranged in the simulation blood vessels, the ends, away from the simulation blood vessels, of the mounting discs are fixedly connected with power connection bins, and the power connection bins are used for supplying power to the electric heating wires in the simulation blood vessels; according to the device, how to avoid the main blood vessel of the leg when a surgical incision is formed in a fracture point can be trained, the actual surgical condition is simulated, the surgical scene is highly restored, the practical training pertinence is improved, and the practical training efficiency is improved. And the operation opening proficiency of people is trained.

The present invention relates to an electric heating device with a housing (2) which forms a heating element receptacle (8) holding at least one PTC element (32) and at least one fluid channel (10), and a PTC heating device (34) with a press-fit profile (24) inserted into the heating element receptacle (8) which forms a PTC receptacle (30) in which the at least one PTC element (32), electrically conductive conductor tracks (28) abutting it and optionally an insulation (36) supporting the conductor tracks (28) insulated against the PTC receptacle are provided.To create an electric heating device that enables good heat extraction from the PTC element with reduced manufacturing and assembly effort, it is proposed according to the invention to form the housing (2) from an extruded profile and to form deformation projections (42, 46) between the housing (2) and the press-fit profile (24) through the housing (2) and / or the press-fit profile (24), by which the press-fit profile (24) is held under a preload in the heating element receptacle (8).

The invention relates to the technical field, and discloses a fisheye test needle group for testing a circuit board, which comprises a test board, the test board comprises a heating pressing block, an insulating component and a base, a test sample is placed between the heating pressing block and the insulating component, the test sample comprises a sample body and fisheye needles extending from pins on the sample body, and the fisheye needles are arranged on the base. A plurality of groups of double-end probes and elastic sheets are mounted in the base and are in butt joint with fisheye needles, the fisheye needles, the double-end probes and the elastic sheets form a test needle group, when the test sample sinks, the fisheye needles are in butt joint with the double-end probes, the elastic sheets are in butt joint with the fisheye needles to form two pairs of contacts, and when the test sample sinks to guide a first pair of contacts to appear, the first pair of contacts are in butt joint with the fisheye needles. And the wedge-shaped surface in the sinking direction guides the elastic sheet to incline so as to form the second pair of contacts, so that the current and voltage required by Kelvin testing can be met, the two pairs of contacts and a plurality of testing points are integrated in a single structure, and the use requirement is met by the appearance of lateral force while vertical downward force exists.

A heater cable is disposed through a wellhead assembly into a production tubing string and is lowered such that it is at least partially immersed within a volume of a well kill fluid. Prior to the immersion, a density of the well kill fluid relative to the produced fluids at the downhole end is such that the volume of well kill fluid prevents the flow of the produced fluids from the subterranean zone into the production tubing string. An electric current is flowed though the heater cable, and the heater cable converts the electric current to heat energy. The heat energy is transferred by conduction to the kill fluid thereby reducing the density of the well kill fluid relative to the produced fluids such that the well kill fluid rises in an uphole direction through the production tubing string.

The invention relates to the technical field of PTC heating, in particular to a partition heating PTC heating rod and a PTC heater, which comprise a heating structure, the heating structure comprises a common end electrode plate, a first ceramic plate and a second ceramic plate are respectively arranged at two ends of the common end electrode plate, and the first ceramic plate and the second ceramic plate are arranged on the common end electrode plate. The space between the first ceramic plate and the second ceramic plate is divided by a plurality of third ceramic plates to form a plurality of heating subareas which are sequentially arranged at intervals, each heating subarea is provided with at least one PTC heating chip, and a subarea electrode plate is arranged above the PTC heating chip of each heating subarea. According to the invention, the PTC heating chip in the PTC heating rod is divided into a plurality of heating subareas through the ceramic chips, and each heating subarea is provided with the subarea electrode slice which is matched with the common end electrode slice, so that a subarea heating function is realized, the structure is simple, deformation is not easy to occur, a plastic frame and a ceramic substrate are not needed, and the cost is low.

A non-metallic composite heating element assembly can be formed by winding a carbon veil onto a resin-rich structural layer before the resin-rich structural layer completely cures. The resin can wet through the carbon veil during formation, thereby bonding the carbon veil to the structural layer without the need for a separate and discrete adhesive layer. Other layers can also be formed, including a first insulating layer between the carbon veil and the first structural layer, a second insulating layer above the carbon veil, and a second structural layer formed above the second insulating layer. The carbon veil can include two busbars for supplying power to the carbon veil.

The invention relates to the technical field of power transmission tower supporting, in particular to a frost heaving prevention device of a power transmission tower underground structure and a control method thereof.The frost heaving prevention device of the power transmission tower underground structure comprises a tower foundation body, the tower foundation body is inserted into soil during installation, and the tower foundation body comprises an upper part and a lower part; the upper part is of a conical tower-shaped stepped structure, and the small end of the upper part is arranged on the upper part, so that the horizontal frost heaving force can be reduced and guided downwards, the tower foundation main body is more stable, and the phenomenon that the tower foundation main body is pushed to be inclined or a tower collapse accident is caused by the horizontal frost heaving force is avoided; the segmentation reinforcers are configured to cut soil in the radial direction, so that the upward frost heaving force can be reduced, and the tower foundation body is prevented from being pulled out of the ground through the frost heaving force. An anchoring assembly is arranged on each segmentation reinforcing piece, and the anchoring assemblies are configured to be capable of anchoring the tower foundation body in soil.

The invention discloses a graphite heating tube and cooking equipment, and the graphite heating tube comprises a hollow tube body, the tube body is provided with at least one bending part, the bending part is in a circular arc shape, and a reference line is defined to pass through the circle center of the bending part and is perpendicular to the radius direction of the bending part; the heating piece is formed into a sheet-shaped graphene material piece, the heating piece is arranged in the pipe body in a penetrating mode, in the thickness direction of the heating piece, the heating piece is provided with a neutral face located in the center, the neutral face extends in the length direction of the pipe body, and at least the part, right opposite to the bent part, of the neutral face is parallel to the reference line. According to the invention, the part, which is at least opposite to the bending part, of the neutral surface is parallel to the reference line, so that the heating piece cannot be twisted by external force, the heating piece can smoothly penetrate into the pipe body, the yield is improved, the production efficiency is greatly improved, and the cost is saved.

The present invention provides a monitoring system comprising: a sensor which is provided in a pipe for connecting a demand end and a supply end of a fluid and which collects sensing information related to the pipe; a receiving unit which is connected to the sensor and which receives sensing information from the sensor; a control unit for outputting a temperature value of the fluid by using the sensing information through calibration; a heating cable which is provided in the pipe, and which heats the pipe on the basis of the temperature value of the fluid; an HMI module, which uses a graphic model related to a pipe system including a plurality of pipes, so as to display the temperature value of the fluid and a change, due to heating, in the temperature value of the fluid; and a display for outputting the graphic model. According to the present invention, the temperature of the fluid can be controlled using the heating cable through monitoring of heat tracing based on an optical fiber sensor.

The utility model discloses a movable thread type heating tube with overheating protection, which relates to the technical field of heating tubes and comprises an external protection device, and a fixing device and a heating device are respectively arranged at the front end and inside the external protection device. The heating device comprises a heating wire, the heating wire is electrically connected with a normally-closed temperature control relay, the outside of the normally-closed temperature control relay is connected with a second wire and a first wire, and a copper terminal and a guide rod are further arranged on the second wire. According to the utility model, the normally-closed temperature control relay is embedded in the insulating mounting head, the temperature switch is closed in the original state, when the sensed temperature exceeds the set rated temperature, the contact is disconnected to cut off power, and when the temperature reaches the critical point, the contact is activated to play a role in protecting the heating tube in a power-off manner.

The present invention discloses a tunnel furnace using ultraviolet sterilization lamps, and relates to the technical field of sterilization lamps. The present invention includes a lamp tray, a guide frame is fixedly installed on the top of the lamp tray, a lamp socket is fixedly installed inside the lamp tray, and a plurality of evenly distributed ultraviolet sterilization lamps are fixedly plugged into the top of the lamp socket. The lamp tray is used to load the ultraviolet sterilization lamps and is placed in the tunnel furnace to provide drying and sterilization functions for the conveyed products. The present invention utilizes the built-in heating tubes of the tunnel furnace itself to heat and dry the products conveyed on the tunnel furnace, while the ultraviolet sterilization lamps inside the lamp tray can sterilize and disinfect the products being dried, so that the products are subjected to dual treatments of heating and sterilization. At the same time, the ultraviolet sterilization lamps are integrated into the lamp tray by fixed plug-in, and the integrated structure of the drawer-type push-pull tray makes it convenient to remove the lamp tray from the tunnel furnace for maintenance.

A heater includes a plurality of heat-generating cells partitioned by a boundary line arranged on a base body, and includes one resistive heating wire formed in each heat-generating cell and having a zig-zag shape as a whole, the resistive heating wire formed by connecting a parallel wiring and a turn-back wiring formed so as to turn back the parallel wiring in a vicinity of the boundary line between adjacent heat-generating cells. In the adjacent heat-generating cells, the resistive heating wire of a heat-generating cell has an extension portion extending the parallel wiring past the boundary line, and the resistive heating wire of the other heat-generating cell is shortened or deformed so that a wiring of a portion facing the extension portion maintains an electrical insulation with the extension portion. The resistive heating wires of the adjacent heat-generating cells include extension portions alternately in a boundary line direction.

The present disclosure relates to an aerosol generating device and a heating structure thereof. The heating structure includes a heating element configured to radiate infrared light waves in a power-on state, a tube body for the infrared light waves to pass through, and a temperature measurement unit for temperature measurement. The heating element and a tube wall of the tube body are at least partially spaced apart. The heating element includes a heating portion and a conductive portion connected to one end of the heating portion. One end of the temperature measurement unit is connected to one end of the heating portion, and another end of the temperature measurement unit is connected to the conductive portion. In the present disclosure, the heating element does not cause an aerosol generating substrate to be overheated in high-temperature environments, thereby greatly improving the puffing taste. Moreover, the preheating time is greatly reduced, thereby greatly improving the consumer experience. The connection between the temperature measurement unit and the heating portion can quickly reflect the temperature change process of the heating portion to accurately measure the temperature of the heating element, thereby achieving the precise atomization of the aerosol generating substrate.

A quad-polarized antenna system according to the present invention comprises a plurality of RF chains, and an antenna array in which rows of first dual-polarized antenna units and rows of second dual-polarized antenna units are alternately arranged in a horizontal direction. The first dual-polarized antenna unit and the second dual-polarized antenna unit have different dual polarization characteristics from each other. The rows of first dual-polarized antenna units are used to form at least one first beam and at least one second beam which have + / −45° polarizations, and the rows of second dual-polarized antenna units are used to form at least one third beam and at least one fourth beam which have 0° / 90° polarizations. The first beam, the second beam, the third beam, and the fourth beam are formed towards different spatial directions, and the first and third beams correspond to main lobes, and the second and fourth beams correspond to grating lobes.

The invention discloses an MCH heating and compressor integrated structure, and relates to the technical field of heaters. The MCH heating and compressor integrated structure comprises a compressor pump body and a heating mechanism, the heating mechanism comprises a cast aluminum runner, a liquid inlet pipe and a liquid outlet pipe, the cast aluminum runner is installed at the bottom of a controller, the liquid inlet pipe and the liquid outlet pipe are sequentially installed on the side of the surface of the cast aluminum runner, and the liquid inlet pipe and the liquid outlet pipe communicate with the cast aluminum runner; an end cover is fixedly connected to the middle of the top of the cast aluminum runner, a ceramic heating pipe is installed at the bottom of an inner cavity of the cast aluminum runner, the ceramic heating pipe and the bottom of the cast aluminum runner are installed in a sealed mode, the bottom end of the cast aluminum runner extends to the bottom of the cast aluminum runner, and a heating core pressing plate is fixedly installed at the bottom of the cast aluminum runner. The PCB connecting plate is fixedly installed at the bottom of the heating core pressing plate, the purpose of even heating is achieved, heating and a compressor are integrated, the size is small, heating is fast and even, temperature rise is fast, and safety and reliability are achieved.

The invention relates to a high-voltage heating element (1) for an electric heating device for heating an air flow, in particular for a motor vehicle, preferably for a battery-electric motor vehicle, - with a metallic flat tube (2) defining a longitudinal direction (X), a transverse direction (Y) and a vertical direction (Z) which are perpendicular to each other, - with a heating register (3) which has several PTC heating elements and two electrodes for electrically contacting the PTC heating elements, - wherein the heating register (3) is arranged in the flat tube (2) so that the flat tube (2) completely encloses the heating register (3) in a circumferential direction (U) surrounding the longitudinal direction (X), - wherein an electrical insulation (9) extending completely around the circumference (U) is provided between the flat tube (2) and the heating register (3). The manufacture of the high-voltage heating element (1) can be simplified in that the insulation (9) is formed by a coating (10) of electrically insulating material (11) which adheres to an inner side (12) of the flat tube (2) and / or to an outer side (13) of the heating register (3).

This application relates to the technical field of heating tooling, and specifically relates to a heating wire winding tooling and winding method for a molecular beam epitaxy source furnace. The heating wire winding tooling includes: a fixed column, a first fixed plate, a second fixed plate, a first rotating ring, and a second rotating ring; the first fixed plate and the second fixed plate are parallel to each other and are respectively detachably connected to both ends of the fixed column. The circumferential surfaces of the first fixed plate and the second fixed plate are both provided with a plurality of positioning grooves arranged at intervals in a circumferential manner, and each positioning groove penetrates through both side surfaces of the first fixed plate or the second fixed plate in the thickness direction; the first rotating ring and the second rotating ring are respectively rotatably and detachably arranged on the circumferential surfaces of the first fixed plate and the second fixed plate. The first rotating ring and the second rotating ring are both provided with an opening that penetrates the inner and outer circumferential surfaces of the first rotating ring or the second rotating ring, and the size of the opening is adapted to the positioning groove; reduce the probability of the heating wire generating plastic deformation and effectively ensure the uniform distribution of the temperature field of the molecular beam epitaxy source furnace.