424 results about "Thermal adhesive" patented technology

The invention relates to the technical field of defect detection, in particular to a heat-conducting adhesive tape defect detection method and system based on machine vision, and the method comprises the following steps: obtaining a surface image of a heat-conducting adhesive tape, extracting a texture trend and marking an aggregation block, adjusting the trend and offset of a connecting line segment, and analyzing the angle change of a sideband node. And recognizing a skeleton trend reverse section and closing a boundary, and extracting a continuous direction changing region to obtain a defect structure image annotation layer. According to the method, the turning position in the sideband region is extracted by constructing the direction aggregation graph of the texture aggregation block, enhancing the direction identification of the direction of the regional texture, combining the grouping organization and coordinate offset processing of the line segment path, enhancing the continuous association of the image structure, and by means of the repeated distribution characteristic of the angle mutation node; and through a skeleton trend reverse paragraph and boundary closing mode, an identification range of a structure disturbance block is expanded, and coherent tracking and multi-level labeling of a structure abnormal region are completed by combining a spatial relationship between a contour trend difference and a turning point.

The invention relates to an eddy current heating device for a thermoluminescence element and a heating method. The device comprises a heating disc, a copper coil assembly, a supporting frame, a temperature measuring sensor assembly and a control circuit, the heating disc is in a disc shape, and the copper coil assembly is composed of four multi-layer closely-wound fan-shaped copper coils which are arranged in four quadrant areas of the heating disc respectively; the temperature measuring sensor assembly is provided with four temperature sensors which are embedded into the bottom of the heating disc through heat-conducting glue and connected with the control circuit. The control circuit adopts a PID (Proportion Integration Differentiation) algorithm to independently adjust the current of each sector according to feedback signals of each temperature sensor, realizes rapid temperature rise and accurate temperature control through frequency adjustment and power compensation, and has an over-temperature protection function. According to the device, the temperature of the heating disc can be raised to 300 DEG C within 3 seconds, and the temperature deviation is controlled within + / -0.5 DEG C. Compared with traditional resistance heating, the device has the advantages of being fast in temperature rise, low in energy consumption, high in temperature uniformity, convenient to maintain and the like, and meets the high-precision temperature control requirement of thermoluminescence measuring and reading equipment.

The utility model discloses a single battery and a battery pack. The single battery comprises a core bag, a shell, electrodes and first heat-conducting glue, specifically, the shell comprises a shell sleeve and a cover plate, the core bag is contained in the shell sleeve, and the cover plate and the shell sleeve are connected to cover and seal the shell sleeve; the electrode comprises a pole and a pin which are electrically connected with each other, the pole is arranged on the cover plate, and one end, far away from the pole, of the pin extends to the length direction of the core package and is electrically connected with the core package; and the first heat-conducting glue is arranged between the pins and the inner surface of the shell sleeve. According to the single battery disclosed by the utility model, the heat of the core package can be quickly transferred to the shell through the first heat-conducting glue and then dissipated to the environment, so that the thermal runaway risk of the single battery is smaller.

A thermally conductive curable composition is dispensable to form a thin film and subsequently B-staged to reduce the flowability and to thereby prevent overflow of the composition during the die attach process. The thermally conductive curable composition includes a matrix precursor that is curable at a cure temperature, a thermally conductive particulate filler, and an organic solvent or solvent mixture. The thermally conductive particulate filler is sinterable at a sintering temperature that is equal to or lower than the cure temperature, and the organic solvent or solvent mixture has a flash point temperature equal to or less than 200 oC.

The invention discloses a novel energy storage rib with a built-in passive fireproof structure, relates to the technical field of building safety and electrochemical energy storage, and comprises a first energy storage rib, a second energy storage rib and a third energy storage rib. When the passive fireproof module is used, the passive fireproof module can adopt a fireproof coating layer wrapping the battery unit, a fireproof isolation sheet arranged between the serially connected sub-battery cores or a composite fireproof substrate filled in the whole cavity and the like. The selected materials comprise aerogel, a phase-change material, a flame-retardant polymer, heat-conducting glue doped with a flame retardant and the like. The activation temperature of the passive fireproof module is set between the maximum operating temperature of the battery and the thermal runaway triggering temperature. In the early stage of thermal runaway of the battery, the module can be automatically and instantly started, the self-suppression and self-extinguishing functions are achieved through mechanisms such as efficient heat absorption, oxygen isolation and flame spread suppression, and an intrinsic safety solution is provided for integration of a building structure and an energy storage system.

The utility model relates to building energy -saving technical field solves the problem that traditional hollow glass depends on air layer heat insulation, but the heat conductivity coefficient is higher, and the energy -conserving effect is limited, and low emissivity coated glass needs to cooperate inert gas filling, and the process is complex and the durability is insufficient. Specifically, a glass heat insulation assembly, including outer glass, the front of outer glass is equipped with the snap -groove, the inside of snap -groove is provided with first adhesive layer, the front of first adhesive layer is provided with heat insulation assembly, the front of heat insulation assembly is provided with second adhesive layer, heat insulation assembly includes fixedly connected in first adhesive layer target flexible heat insulation core layer, the front of flexible heat insulation core layer is fixedly connected with reflection film layer, the front of second adhesive layer is fixedly installed with toughened glass, the outer surface of second adhesive layer is fixedly connected with first elastic heat conduction adhesive tape, the edge of outer glass is fixedly connected with second elastic heat conduction adhesive tape, and second elastic heat conduction adhesive tape is used for the edge of outer glass seal.

The utility model relates to the technical field of circuit boards, in particular to a high-efficiency radiating circuit board, which comprises a circuit board body, a plurality of groups of heat-conducting adhesive tapes are arranged on the lower surface of the circuit board body, each group comprises two heat-conducting adhesive tapes, the tops of the heat-conducting adhesive tapes are connected to the lower surface of the circuit board body, and the heat-conducting adhesive tapes are arranged on the circuit board body. A heat transfer sheet is fixedly connected to the bottom of the heat conduction rubber strip, a heat transfer plate is fixedly connected to the lower surface of the heat transfer sheet, a cooling fin is fixedly connected to the bottom end of the heat transfer plate, and an air duct is fixedly connected to the outer side wall of the heat transfer plate. According to the utility model, heat generated by the operation of the circuit board body is transmitted to the radiating fins through the heat-conducting adhesive tape, the heat transfer sheet and the heat transfer plate to be radiated, and the fan works to drive the fan blades to rotate quickly to blow out air in the air duct and accelerate the flowing speed of the air in the air duct, so that the radiating speed of the radiating fins is accelerated, and the radiating performance of the circuit board is enhanced; the heat can be timely dissipated, and the use effect of the heat dissipation plate is guaranteed.

The utility model provides a CCS support, a CCS assembly and a battery pack, the CCS support comprises a base and a cloud card, the base comprises a bottom plate, a side plate and a baffle plate, the side plate is connected to the bottom plate and is arranged on one side of the bottom plate, the baffle plate is connected to the bottom plate and is arranged on one side of the side plate, a mounting position is arranged between the baffle plate and the side plate, and the mounting position is used for mounting a busbar. The side plate is provided with an installation port, the cloud card is installed in the installation port, and the abutting part abuts against the side, away from the baffle, of the side plate. The size of the mounting opening can be set in the side plate according to the size of the cloud card, the opening size of the mounting opening is reduced, the glue overflowing amount is reduced, and the abutting part abuts against the side, away from the baffle, of the side plate, so that glue overflowing of the heat-conducting glue can be further blocked, and the situation that the heat-conducting function of the battery is affected by glue overflowing is avoided.

The utility model relates to a motor with heating monitoring protection, which comprises a motor shell and a motor inner core, the motor shell comprises a front cover and a rear cover, an output shaft of the motor inner core penetrates out of the front cover, a control circuit board is arranged in the rear cover, and one surface of the front cover facing the rear cover is provided with a heat conduction mounting hole; the LED lamp further comprises an NTC assembly, the NTC assembly is arranged in the heat conduction installation hole through heat conduction glue, and a lead of the NTC assembly is electrically connected with the control circuit board.

The invention relates to the technical field of fluid machinery, in particular to a heater and a compressor assembly.The heater comprises a first shell and a heating structure, the heating structure is arranged in the first shell, the first shell is provided with a water outlet and a water inlet, and the heating structure comprises a ceramic heating plate and a heat conduction plate; the ceramic heating plate is connected with the heat-conducting plate through heat-conducting glue, and the heat-conducting glue forms a heat-conducting glue layer, namely, the heat-conducting glue layer is arranged between the ceramic heating plate and the heat-conducting plate. Therefore, the heat-conducting plate can be fixedly connected with the ceramic heating plate, and the heat transfer effect is prevented from being affected by separation of the ceramic heating plate and the heat-conducting plate. And the heat-conducting glue can transfer heat generated by the ceramic heating plate to the heat-conducting plate, so that the efficiency of transferring the heat of the ceramic heating plate to the heat-conducting plate is improved.

The present application relates to a kind of heating cigarette reconstituted tobacco low-temperature flavor releasing heat-conducting glue and its preparation method, it is related to tobacco manufacturing technical field.Heat-conducting glue includes the following weight parts of component: low-temperature catalytic material 2~6 parts, heat-conducting filler 0.8~1.2 parts and matrix glue 100 parts;Wherein, low-temperature catalytic material is organic metal salt modified titanium-silicon molecular sieve, heat-conducting filler is silane coupling agent modified metal oxide powder.Low-temperature catalytic material can effectively catalyze tobacco aroma precursor material cracking in lower temperature range, significantly reduce the activation energy of aroma release, thereby improve aroma release efficiency, solve the problem of traditional reconstituted tobacco aroma release deficiency, tasteless.Using the metal oxide modified by silane coupling agent as heat-conducting filler, while improving the overall thermal conductivity of reconstituted tobacco, effectively reduce the interface thermal resistance between heat-conducting filler and tobacco matrix, make heat transfer more efficient and uniform, enhance the stability of smoke release.

The invention provides a heat-conducting adhesive, a heat-conducting bonding layer and a new energy automobile power battery comprising the heat-conducting bonding layer. The thermally conductive adhesive comprises: 40-55 wt% of an epoxy resin; 5-12 wt% of a curing agent, wherein the curing agent is one or more of an aliphatic amine curing agent and an imidazole curing agent; 10-25 wt% of a thermally conductive filler; 3-8 wt% of a toughening agent; 2-6 wt% of a flame retardant; 1-3 wt% of a coupling agent; 0.5 to 2 wt% of an anti-aging agent; and an organic solvent. An adhesive layer formed by curing the heat-conducting adhesive has good mechanical strength and flexibility, can bear loads such as impact and vibration, resists thermal cycling and damp-heat aging, is good in heat conductivity and good in insulating property, is suitable for a new energy automobile power battery, and is particularly suitable for a CTP structure.

The utility model relates to the technical field of unmanned aerial vehicle heat dissipation, in particular to an unmanned aerial vehicle heat dissipation device which comprises a middle frame, a main plate and a rubber sleeve, the middle frame is installed on a vehicle body, the main plate is fixedly connected in the middle frame, the rubber sleeve is fixedly installed on the peripheral wall of the main plate, and heat-conducting glue is filled in gaps between the top of the rubber sleeve and the middle frame and the main plate. The rubber sleeve comprises a connecting part, a sealing part and an elastic extrusion part, the connecting part, the sealing part and the elastic extrusion part are of an integrally-formed structure, a bent groove is formed in the connecting position of the sealing part and the elastic extrusion part, and the connecting part is fixedly connected with the main plate. The rubber sleeve is fixedly installed on the peripheral wall of the main board, the gap between the top of the rubber sleeve and the middle frame and the gap between the top of the rubber sleeve and the main board are filled with the heat-conducting glue, and the heat-conducting glue establishes a heat-conducting path from the main board to the middle frame; the heat-conducting glue has good heat-conducting property, so that heat generated during working of the mainboard can be quickly transferred to the middle frame and then dissipated to the outside through the middle frame, heat accumulation in the mainboard area is avoided, and the problem that a heat dissipation channel is not smooth is solved.

The invention discloses a power semiconductor packaging structure and method and an electronic product. The power semiconductor packaging structure comprises an inductance element, an active element, a passive element, a power chip and a PCB. The inductance element and the power supply chip are electrically connected to the PCB and are sequentially arranged in the direction perpendicular to the PCB. The inductance element is electrically connected to a cavity with an opening in one side of the PCB, and the active element and / or the passive element are / is suitable for being placed in the cavity and electrically connected with the PCB. The cavity is filled with heat-conducting glue, and the heat-conducting glue is configured to tolerate reflow soldering process temperature. The cavity is filled with the heat-conducting glue, the heat conduction efficiency between the inductance element and the active element and / or the passive element in the cavity can be improved, in addition, the adhesion effect of the heat-conducting glue can enhance the mechanical connection effect of the active element and / or the passive element, density packaging can be achieved, and the packaging efficiency is improved. Therefore, the packaging structure can achieve a smaller packaging size and better heat dissipation efficiency.

The invention provides a cooling device of a battery module, a battery pack and an installation method of the battery pack. The cooling device comprises a plurality of cooling units, the plurality of cooling units are connected with one another and are connected with at least one inlet and at least one outlet, so that a cooling medium flows from the inlet to the outlet through the cooling units, and the plurality of cooling units are arranged to be adaptive to a to-be-cooled surface of the battery module, each cooling unit comprises a plurality of cooling pipelines which are parallel to one another and communicated with one another, a plurality of gaps are formed between the cooling units and between the cooling pipelines in the cooling units, the cooling device further comprises heat-conducting glue, and the gaps are filled with the heat-conducting glue. According to the cooling device, the cooling pipelines are used for directly cooling the to-be-cooled surface, the space between the cooling pipelines is filled with the heat-conducting glue so that heat of the to-be-cooled surface can be transmitted to the cooling device, the cooling device can be attached to the to-be-cooled surface, a whole cooling plate does not need to be used, materials of the cooling device are saved, and the cooling efficiency is improved.

The utility model discloses a high-temperature-resistant winding resistor device which comprises a ceramic winding reel, two ends of the ceramic winding reel are fixedly connected with pin caps, the circumferential outer wall of the ceramic winding reel is connected with a resistance wire in a winding mode, a contact pin is arranged between the ceramic winding reel and the pin caps in a penetrating mode, the outer side of the resistance wire is sleeved with an insulating shell, and the outer side of the insulating shell is sleeved with an insulating sleeve. A plurality of heat dissipation fins are clamped on the outer wall of the circumference of the insulating shell, and a plurality of heat dissipation holes are formed in the circumference of the insulating shell. According to the utility model, heat generated by the resistance wire is efficiently transmitted to the insulating shell through the insulating heat-conducting glue, and then is dissipated into the air through the heat dissipation fins, so that the resistance wire is subjected to heat dissipation and cooling at a high speed, and meanwhile, the heat of the resistance wire is dissipated from the heat dissipation holes, so that the resistance wire is better subjected to heat dissipation and cooling, and the service life of the resistance wire is prolonged. Therefore, the resistance device is prevented from generating stress due to high-temperature expansion, the resistance wire is prevented from loosening and deforming, and the precision and stability of the resistor are prevented from being reduced.

This invention discloses a compact UAV flight control board core component layout and efficient connection method, belonging to the field of UAV flight control design technology. The layout scheme centers on the main control module, achieving a radial and compact arrangement of various functional modules on a flight control board body with an area not exceeding 50cm²: sensor modules surround the main control module with a spacing not exceeding 5mm, power management and communication modules are diagonally distributed at the edges, and interface expansion modules are dispersed in the remaining edge areas. Independent digital and analog ground copper foils are provided, using single-point grounding. The connection method utilizes surface mount technology for direct soldering of core chips. The power link employs a tree topology and array filtering, while the signal link optimizes impedance matching and wiring. Connection detection and thermal adhesive reinforcement ensure reliability. This invention significantly reduces the size and weight of the flight control board, effectively reduces signal interference and transmission loss, improves connection stability and flight control accuracy, and is suitable for the needs of miniaturized UAVs.

This invention discloses a heat dissipation cover for electronic devices, relating to the field of thermal conductivity technology, and applicable to heat dissipation systems for high-power electronic devices. Addressing the problems of high sealing risk, complex installation, low thermal conductivity, and high maintenance costs associated with existing through-tube designs, the technical solution of this invention is as follows: the heat dissipation cover includes a plate-shaped body and a metal tube; the plate-shaped body has a first surface, a second surface, and a groove disposed on the first surface; the metal tube is fixed within the groove, with its inlet and outlet ends extending from the first surface; optionally, thermally conductive adhesive can be used to fill the gaps in the groove, or the tube body can be welded for sealing. The beneficial effects of this invention are: improved sealing reliability, optimized thermal conductivity, reduced manufacturing and maintenance costs, and adaptability to different equipment layout requirements.

This application provides a method for preparing a high-temperature resistant thermally conductive insulating sheet and the high-temperature resistant thermally conductive insulating sheet itself. The preparation method includes: mixing 100 parts by weight of polytetrafluoroethylene (PTFE) emulsion, 10-300 parts by weight of plasticizer, 0-30 parts by weight of water, and 100-500 parts by weight of thermally conductive filler to obtain a thermally conductive slurry; continuously adhering the thermally conductive slurry to fiberglass cloth and curing it to form a thermally conductive colloid until the thickness of the fiberglass cloth with the thermally conductive colloid reaches a preset thickness, obtaining a high-temperature resistant thermally conductive insulating sheet roll; and cutting the high-temperature resistant thermally conductive insulating sheet roll to obtain a high-temperature resistant thermally conductive insulating sheet. This application, by using PTFE as a carrier, can achieve long-term temperature resistance exceeding 250°C; by adding a plasticizer, the creep effect of PTFE is intensified, making the product more prone to creep under stress, thus achieving a lower interfacial thermal resistance.

The utility model is applicable to the technical field of photovoltaic inverters, and provides a PV terminal temperature detection device and a photovoltaic inverter.The PV terminal temperature detection device comprises a thermistor arranged on a wave soldering side of a core pin of a metal core in a PV terminal; and the surface of the thermistor, the wave-soldering side of the core pin and the copper sheet of the core pin are coated with heat-conducting glue. As the thermistor is placed on one side of the wave-soldering pin, the thermistor is closer to the core pin, and the heat transfer effect is better. Meanwhile, the thermistor, the core pin and the copper sheet are coated with heat-conducting glue, and most of heat generated by the metal core and the copper sheet is transferred to the thermistor, so that the master control chip can judge the state of the current PV terminal more quickly and accurately.

The present invention discloses a double-layer copper plate pressing process, which relates to the field of circuit board processing technology and includes the following steps: S1, cutting the bottom copper plate; S2, cutting the middle copper plate; S3, composite preparation and S4, forming processing. The double-layer copper plate pressing process uses a process pressing and stacking structure to press and paste two copper plates into a double-layer copper plate, etches a groove around the bottom copper plate, fills the groove with insulating glue, and pastes the bottom copper plate and the middle copper plate together through a high-conductivity adhesive insulating layer, which plays a role in heat absorption and electricity resistance, thereby improving product quality. Since the bottom copper and the middle copper plate are pasted together through the insulating layer of thermal conductive glue, the bottom copper and the middle copper plate can prevent short circuit under the action of the insulating conductive glue. Therefore, the improved process adds a groove by etching around the bottom copper plate to prevent short circuit between the bottom copper and the middle copper plate and to prevent the bottom and middle layers from conducting and dissipating heat energy.

The utility model relates to the technical field of LED backlight sources, in particular to a shading glue composite type LED backlight source. The LED lamp comprises a reflecting film attached to the bottom of a mounting frame, a light guide plate, an LED lamp strip, a diffusion film, a lower brightness enhancement film, an upper brightness enhancement film and shading glue are arranged at the upper end of the mounting frame, a heat dissipation assembly is arranged at the right end of the mounting frame, and the heat dissipation assembly comprises heat dissipation fins fixedly connected to the bottom of the inner wall of the mounting frame. The LED lamp strip is arranged in the mounting frame, the radiating fins penetrate through one side of the mounting frame, a heat conduction layer is arranged at the lower end of the LED lamp strip, the heat conduction layer is heat conduction glue smeared at the lower end of the LED lamp strip, by arranging the radiating assembly, when the LED lamp strip needs to be radiated, the LED lamp strip is pressed on the radiating fins during assembly, the LED lamp strip generates heat during working, the heat is conducted to the radiating fins, and the radiating effect of the LED lamp strip is improved. And the other part of the radiating fin is positioned outside the mounting frame, so that heat exchange is carried out through the radiating fin, and the temperature of the LED light bar during working is reduced as much as possible.

The present application discloses a battery cell, a battery pack, and a vehicle. The battery cell comprises a casing, cover plates, an electrode core, poles, and thermally conductive adhesives; the electrode core is arranged in the casing; the ends of the electrode core close to the cover plates are each provided with a tab; one end of each pole passes through the corresponding cover plate to be connected to the corresponding tab; a gap between the electrode core and each cover plate is filled with a thermally conductive adhesive; the thermally conductive adhesive makes contact with the corresponding pole and / or tab and makes contact with the corresponding cover plate and / or the casing.

The utility model relates to a heat-conducting adhesive film sticking machine, and belongs to the technical field of film sticking. The device comprises a shell which is provided with sliding grooves formed in the two sides; the movable plate is movably arranged in the sliding groove and can be used for placing an object to be subjected to film pasting; the positioning assemblies are arranged on the two sides of the movable plate and used for limiting the object to be subjected to film pasting; the heating plate is installed on one side of the shell and used for heating an object to be subjected to film pasting; the roller is movably installed on the shell and can assist in attaching the adhesive film to the surface of an object to be pasted with the film. According to the heat-conducting adhesive film sticking machine provided by the utility model, a plurality of components such as the movable rod, the transverse plate and the spring are matched, so that the pressing rod is propped against a plastic sheet, the plastic sheet is limited and fixed, the plastic sheet and a wafer are prevented from moving in a film sticking process, and the film sticking quality is ensured.

This utility model belongs to the field of electrical component technology, specifically relating to a sodium-ion battery structure and battery pack. The sodium-ion battery structure includes a battery pack comprising a plurality of batteries arranged in an array, each battery being surrounded by a support sleeve. An upper limit cover is provided above the battery pack, and a lower limit cover is provided below the battery pack. Thermally conductive adhesive is filled between the support sleeves. Both the upper and lower limit covers have a plurality of first limiting grooves. When replacing the battery, the battery is removed from the support sleeve by removing the upper limit cover. This sodium-ion battery structure and battery pack, by using support sleeves, ensures that the thermally conductive adhesive adheres to each support sleeve, avoiding direct contact and adhesion between the battery and the thermally conductive adhesive. That is, when replacing the battery, only the upper limit cover needs to be removed first, and then the battery can be removed from the support sleeve to complete the replacement, eliminating the need to melt the thermally conductive adhesive, greatly improving the convenience of operation.

A method of manufacturing an eco-friendly thermally conductive adhesive, includes: a first step of mixing zinc oxide and water to prepare an aqueous zinc oxide solution, and sequentially adding zinc acetate, water, urea, and a defoamer to the aqueous solution followed by stirring to prepare a first mixture; a second step of sequentially adding casein protein and a base aqueous solution to the first mixture followed by stirring to prepare a second mixture; a third step of adding ammonia water to the second mixture and then raising temperature followed by stirring to prepare a third mixture; and a fourth step of adding conductive graphite and a dispersant to the third mixture, followed by stirring and cooling.

The utility model belongs to the technical field of conductive material engineering, and particularly relates to an etchable conductive or heat-conducting adhesive film. The utility model discloses a 3D (three-dimensional) 3D (three-dimensional) 3D (three-dimensional) 3D (three-dimensional) 3D (three-dimensional) 3D (three-dimensional) 3D (three-dimensional) 3D (three-dimensional) 3D (three-dimensional) 3D (three-dimensional) 3D (three-dimensional) 3D (three-dimensional) 3D (three-dimensional) 3D (three-dimensional) 3D (three-dimensional) 3D (three-dimensional) 3D (three-dimensional) 3D (three-dimensional) 3D (three-dimensional) 3D (three-dimensional) 3D (three-dimensional) 3D (three- the 3D microstructure layer is solidified or bonded on the surface of the epoxy glue layer, the high-filling-rate protection glue film is attached to the surface of the epoxy glue layer provided with the 3D microstructure layer, and the release protection film is bonded on the surface of the high-filling-rate protection glue film. The utility model has the advantages of simple structure, no need of special tools, simple operation process, low cost, easy secondary development, and unlimited product size.

The invention relates to the technical field of graphene composite materials, in particular to graphene glass fiber electric heating cloth and electric heating composite cloth. The graphene glass fiber electric heating cloth is prepared by the following steps: ultrasonically cleaning glass fiber cloth, blow-drying the glass fiber cloth, and carrying out chemical vapor deposition by adopting mixed gas a and mixed gas b in sequence to obtain pre-deposited glass fiber cloth; epoxy resin, tourmaline powder, nano titanium dioxide, lanthanum nitrate and a dispersing agent are added into water for ball milling, a curing agent is added for ultrasonic treatment, the surface of the pre-deposited glass fiber cloth is coated with the mixture, and heat treatment is conducted for 2 h or above at the temperature of 105 DEG C to 115 DEG C in the argon atmosphere containing water vapor. The electric heating composite cloth comprises a flexible fabric base body and an insulating protective layer from top to bottom, and the graphene glass fiber electric heating cloth, the electrode plate, the insulating protective layer and the flexible fabric base body are adhered through heat-conducting glue. The obtained electric heating composite cloth can emit far infrared rays and has very strong seepage force.