632 results about "Heating film" patented technology

The utility model provides a heat management device and battery pack, the heat management device includes at least one support member and at least one heating film, each support member is suitable for cooling the corresponding battery cell row, each heating film is suitable for heating the corresponding battery cell row, each heating film is connected to the corresponding support member, the shape of the heating film is matched with the shape of the support member, and the shape of the heating film is matched with the shape of the support member. Therefore, the heating film can be stably attached to the coiled pipe.

The embodiment of the invention provides a fan blade electric heating deicing control method, device and system. The method comprises the steps that when the blade is coated with ice, electric heating films in all heating areas are started for heating, the electric heating films are laid on the surface of the blade and comprise the multiple independent heating areas, and each heating area comprises high-power heating films located on the periphery and a low-power heating film located in the center; the high-power heating film and the low-power heating film of each heating area can be independently controlled; the ice layer falling state of each heating area is judged through monitoring equipment every preset time, at least one piece of monitoring equipment is arranged at the position, close to a blade, of a fan tower barrel, and the monitoring equipment has the laser fog penetrating and lens heating functions and is used for monitoring the blade icing state; and the heating power of the corresponding heating film is adjusted according to the ice layer falling state of each heating area.

The invention relates to the technical field of magnetic therapy mattresses, and discloses a rare earth permanent magnet-graphene composite antibacterial intelligent temperature control magnetic therapy mattress, which comprises a bottom supporting substrate, a magnetic therapy mattress assembly is arranged on the bottom supporting substrate, and the magnetic therapy mattress assembly comprises a supporting buffer layer, a magnet mounting layer, a mesh coating and an antibacterial surface layer. The supporting buffer layer is fixedly connected to the upper surface of the bottom supporting substrate, the supporting buffer layer is graphene modified memory sponge, and the magnet mounting layer is bonded to the upper surface of the supporting buffer layer through full-area thin glue; through the multifunctional collaborative design that the supporting buffer layer is matched with the human body, the rare earth permanent magnet provides a uniform magnetic field, the graphene heating film controls the temperature in a partitioned mode, the graphene fabric is resistant to bacteria, and the edge covering strips are fixed, the mattress meets the basic requirement for comfortable lying, and integrates the additional functions of magnetic therapy health care, intelligent temperature control, antibacterial cleaning and the like; the device is suitable for various scenes such as household daily use and rehabilitation assistance.

The application discloses a kind of AuNPs@ polyimide SERS heating chip preparation and application method, through interface self-assembly technology preparation large-scale AuNPs array film, and transfer to the polyimide film with heating system, form AuNPs@ polyimide heating film as APHC for SERS chip, in situ heat enrichment is carried out to TNT molecule by APHC, and sample can be effectively collected from mixed system by simple operation.This flexible, heatable SERS chip has great significance for efficient, sensitive and in-situ detection of target molecules in complex environmental systems.

The utility model belongs to the technical field of battery heat conductivity coefficient testing, and discloses a battery heat conductivity coefficient testing device which comprises a heating film and two liquid cooling plates. The heating film is used for being clamped between two batteries to be tested, a center thermocouple is arranged at the center of the heating film, and the center thermocouple can collect the temperature of the center of the heating film. The two to-be-tested batteries are clamped between the two liquid cooling plates, a plurality of preset point positions are respectively arranged on two outer side surfaces, which are opposite to each other, of the two to-be-tested batteries, a plurality of first thermocouples and a plurality of second thermocouples are respectively arranged on the two outer side surfaces, the plurality of first thermocouples can collect temperatures of the plurality of preset point positions on one to-be-tested battery, and the plurality of second thermocouples can collect temperatures of the plurality of preset point positions on the other to-be-tested battery. And the plurality of second thermocouples can collect the temperature of a plurality of preset point positions on another battery to be detected. The battery heat conductivity coefficient testing device can accurately and quickly measure the anisotropic heat conductivity coefficient of the battery to be tested.

The utility model belongs to the technical field of heaters, and discloses a liquid heater water channel structure and a liquid heater, the liquid heater water channel structure comprises a shell, a plurality of vortex generators and a ski-jump plate, two throttling channels are respectively arranged at the water inlet end and the water outlet end of a main flow channel; the water inlet flow channel and the water outlet flow channel are communicated with the main flow channel through the corresponding throttling channels, the vortex generators are distributed in the main flow channel in a matrix mode, the ski-jump plate is arranged on the side, close to the throttling channels, of the water outlet end of the main flow channel, and liquid in the main flow channel forms strong turbulent flow under the action of the vortex generators. The continuous vortex structure enhances mixing of liquid in the main flow channel, reduces total heat resistance of heat exchange and improves heating efficiency of the heater, the heated liquid in the main flow channel flows through the ski-jump plate, bubbles of cooling liquid are not prone to being gathered at the water outlet end of the main flow channel, the exhaust effect is more obvious, the bubbles cannot be accumulated even if the liquid heater inclines, and the service life of the liquid heater is prolonged. And the problem of ablation of the heating film of the liquid heater is prevented.

The utility model belongs to the technical field of graphene flexible heating pads, and particularly relates to a graphene flexible heating pad capable of conducting heat through superposition, which comprises a heating pad main body, the heating pad main body comprises a heating layer, a heat preservation layer is arranged on the lower end face of the heating layer, and a bottom layer is arranged on the lower end face of the heat preservation layer. Rapid heating can be carried out; a gap between the first heating film and the second heating film is filled through the first heat-conducting silica gel sheet, so that heat transfer between the first heating film and the second heating film is realized, the heating speed is increased, and the heating effect is improved; heat of the second heating film is conducted upwards through the second heat conduction silica gel sheet, heating use is facilitated, good heat insulation and heat preservation effects are achieved, heat loss is reduced, the heating effect is further improved, the strength is high, the wear-resisting effect is improved, and protection is achieved from the surface; and the buffer layer is made of heat-resistant sponge, is relatively soft and has good buffer performance, so that the comfort level is improved.

The invention relates to the technical field of battery packs, in particular to a battery pack heat preservation and heating control method, device and equipment and a medium. The bag-shaped heat preservation heating sleeve with the heat insulation layer is arranged outside the battery pack to control the temperature; the method comprises the following steps: firstly, acquiring temperature data of each region by using a temperature sensor to analyze and evaluate a temperature state, identifying a temperature abnormal region, performing directional heating analysis, and generating heating control parameters; then, according to the parameters, the heating power of the local area is adjusted, a control signal is sent to a controller, and the output power of the heating film in each area is adjusted; the battery pack can be flexibly installed after leaving a factory, the temperature control effect is improved through the heat insulation effect of the heat preservation heating sleeve and accurate partition control, the battery can be kept at the proper charging and discharging temperature, the effective discharging rate of the battery is improved, and the original battery pack structure does not need to be changed.

The utility model discloses a heating membrane laminating device. Comprising a machine frame, a belt conveyor installed on the machine frame, a pair of U-shaped supporting plates fixed to the machine frame, a pair of sliding blocks arranged in the middles of the two U-shaped supporting plates in a sliding mode respectively, a pair of air cylinders driving the two sliding blocks to slide respectively, a hot pressing roller with the two ends penetrating through the two sliding blocks in a rotating mode respectively, and a first motor driving the hot pressing roller to rotate. The two ends of the tensioning roller are rotationally connected with the two U-shaped supporting plates correspondingly, one end of the unwinding roller is rotationally connected with one U-shaped supporting plate, the rectangular supporting plates are fixed to the fixed rack, the two ends of the rotating shafts penetrate through the two rectangular supporting plates in a rotating mode correspondingly, the second motor drives one rotating shaft to rotate, and the two pairs of belt wheels are arranged on the two rotating shafts in a sleeving mode correspondingly. The two pairs of belt wheels are sleeved with the two belts respectively, and the dust collection assembly is arranged at the tops of the two rectangular supporting plates. The heating film laminating machine has the advantages of being capable of automatically cleaning the surface of the heating film and safely laminating the heating film and the packaging film.

The invention provides an outlet water temperature correction method, device and equipment and an automobile thermal management system, and is applied to the technical field of new energy automobile thermal management and power electronic control. Cooling liquid flow is estimated in real time through existing operation parameters such as bus voltage, working current, inlet water temperature, outlet water temperature and heating film temperature of a heater; the temperature compensation amount of the outlet water temperature is dynamically determined according to the flow and the temperature of the heating film, and finally the outlet water temperature is subjected to self-adaptive correction, so that the temperature compensation amount of the outlet water temperature can be adjusted on the premise that an additional hardware sensor is not added and an existing low-cost indirect temperature measurement structure is not changed. System measurement deviation caused by thermal resistance and thermal capacity in an indirect temperature measurement path is effectively compensated, the outlet water temperature detection precision under the low-flow working condition is remarkably improved, the stability and response speed of a heater control system are improved, and meanwhile the original structural advantages and cost advantages of the system are kept.

The present invention provides a battery thermal management system structure and battery pack that have a simple structure, precisely control the temperature around the cell to maintain it within an appropriate operating range, ensure the operating performance of the cell, and extend the lifespan of the cell. [Solution] The structure of the liquid cooling channel is such that a liquid cooling channel is provided within a direct cooling plate 110, and the direct cooling plate 110 is provided with a liquid supply port 410 and a liquid drain port 420, respectively, which communicate with the liquid cooling channel including a liquid supply line 430 and a liquid drain line 440, and the liquid supply port and liquid drain port are provided on the same side of the direct cooling plate, and the temperature control assembly includes a controller, a temperature sensor, a flow control valve 230 and a heating film, and the controller is signal-connected to the temperature sensor, the flow control valve and the heating film, respectively.

The utility model relates to an intelligent temperature control heat preservation cover for a battery, which comprises a plurality of heat preservation single sheets, each heat preservation single sheet is provided with a fixing component, and the plurality of heat preservation single sheets are detachably connected with one another through the fixing components to form a heating integrated heat preservation cover; the multiple fixing assemblies are arranged on the edge of the heat preservation single piece at intervals, and the length of each fixing assembly can be adjusted. The heating integrated heat preservation cover is coated outside the battery system, and at least one heat preservation single sheet is provided with heat dissipation holes; each thermal insulation single sheet comprises an outer layer, a thermal insulation layer and a flame-retardant inner layer, and the outer layer, the thermal insulation layer and the flame-retardant inner layer are sequentially laminated; a heating film is embedded in the heat preservation layer, and a temperature sensor is arranged in the heat preservation layer and close to the heating film. Each thermal insulation single sheet is connected with a plurality of temperature acquisition wire harnesses, and each temperature acquisition wire harness is connected to a temperature sensor and a temperature management system and is used for transmitting battery temperature data in real time; the temperature management system is connected with the heating film and used for controlling the heating power of the heating film according to the battery temperature data.

The utility model relates to a kind of lithium iron phosphate starting power supply, and cell group includes multiple full tab low temperature lithium iron phosphate battery, and multiple full tab low temperature lithium iron phosphate battery is electrically connected battery management system after mutual series connection or parallel combination;PI heating film is attached to the outer surface of cell group, and PI heating film is closely attached with cell group by heat-conducting silica gel;PI heating film is electrically connected battery management system, for heating cell group under the control of battery management system;GPS positioning module is integrated in the outside of cell group, for obtaining the position information of lithium iron phosphate starting power supply and uploading to remote processing equipment;Cell group, battery management system, PI heating film and GPS positioning module are all set in insulating box body.The utility model reduces internal resistance by full tab low temperature battery structure, can still stable output current in low temperature environment, solves the problem of insufficient low temperature discharge capacity of traditional battery.

The invention discloses a temperature control method and device based on multi-mode fault tolerance and state recovery, and the method comprises the steps: periodically collecting the current temperature values of target electronic equipment from a plurality of temperature sensors, and determining the data credibility of a plurality of current temperature values; when the untrusted temperature value and the trusted temperature value exist in the multiple current temperature values at the same time, heating control is conducted on the heating film according to the trusted temperature value and a conventional control mode; when the credible temperature value does not exist in the current temperature values, whether the sensor is in a temperature abnormal state or not is determined; heating control is conducted on the heating film according to the temperature abnormal state, and the temperature abnormal state is relieved according to the sequence recovery condition of the temperature values; and if it is determined that the sensors are not in the temperature abnormal state, the control state of the heating film is kept unchanged until the temperature value of any temperature sensor is recovered to be credible. According to the invention, a temperature control system with extremely high reliability, robustness and safe self-healing capability under any working condition is constructed.

The utility model discloses a battery heating balanced type heating film, which comprises a base film, a heating unit, a mounting assembly, a heat insulation layer and heat conduction silica gel, the heating unit is arranged at the top of the base film, the mounting assembly is arranged at the top of the base film and is used for mounting and protecting the heating unit, the heat insulation layer is connected between the base film and the heating unit, and the heat conduction silica gel is arranged on the heat conduction silica gel. The heat insulation layer is used for reducing heat loss of the heating unit, the heat conduction silica gel is connected to the top of the heating unit, and the heat conduction silica gel is used for transferring heat generated by the heating unit to a heating object. The base film, the heating unit, the installation assembly, the heat insulation layer and the heat conduction silica gel are used in cooperation, under the cooperation effect of the heat conduction silica gel, the uniformity of heat dissipation of the heating unit can be improved, under the effect of the installation assembly, the stability of installation and use of the heating unit is improved, tensile protection can be conducted on the heating unit, and the service life of the heating unit is prolonged. And the probability that two ends of the heating unit are damaged by stress is reduced.

The application relates to the technical field of heat exchange equipment, and discloses a thick-film heating pipe, which comprises a heating pipe body and a heating film, the heating film is arranged on the surface of the heating pipe body, the heating pipe body comprises an outer pipe and an inner pipe, the inner pipe is arranged in the outer pipe, a flow channel is formed between the side wall of the inner pipe and the side wall of the outer pipe, the heating film is arranged on the outer pipe wall of the outer pipe, and the heating film is used for heating liquid in the flow channel.

Embodiments of the present application provide an atomizing core, an atomizing structure and an electronic atomizing device to solve the problem of low atomizing efficiency of the existing heating type atomizing core, which needs to forcibly evaporate the liquid by increasing the heating power, so that the atomizing sheet is locally overheated to burn the organic matter in the liquid, generating harmful aerosol. The atomizing core comprises a tubular glass substrate provided with an array of through holes and a resistive heating film layer attached to the outer periphery of the tubular glass substrate. Compared with the existing heating type atomizing core adopting a sintering process to form a contracted through hole structure, the atomizing core adopts an expanded through hole structure formed by a laser-induced etching process, which increases the volume space of the through hole inner cavity, and also increases the volume space of the substrate tube cavity as a liquid storage space, effectively improving the liquid storage capacity of the atomizing core. During atomization, the liquid in the substrate tube cavity is first preheated, and then only a small amount of heat is needed to quickly evaporate the preheated liquid into fine mist droplets, effectively improving the atomizing efficiency.

The utility model relates to building material technical field, concretely relates to a kind of decorative gypsum board, including decorative layer, first gypsum board face paper, gypsum board core and second gypsum board face paper set gradually, and heating layer is arranged between decorative layer and first gypsum board face paper;Heating layer includes heating film and conducting strip, and conducting strip is electrically connected in heating film both sides and forms closed loop;Heating film and first gypsum board face paper between being provided with elastic buffer layer;A pair of opposite side of gypsum board core each is provided with at least two tensioning positioning structure, and the edge of heating film is tensioned fixed by tensioning positioning structure.The utility model can solve the problem that heating film and gypsum board thermal expansion difference lead to wrinkle separation and film loose curl under mechanical impact.

This invention discloses a battery self-heating and power compensation system and method for electric mining trucks used in high-altitude and cold mining areas. The system includes: a battery system comprising a battery pack consisting of multiple battery modules, each battery module integrating a temperature sensor and a voltage sensor; a high-frequency pulse self-heating module; a power compensation energy storage unit; an integrated thermal management unit including a liquid cooling plate, a heating film, an insulation layer, and a heat pump air conditioning system; a working condition sensing and prediction unit for real-time acquisition of vehicle working conditions, ambient temperature, and battery status; and a collaborative controller. This invention ensures normal vehicle startup; provides instantaneous high-power compensation capability to meet the power demands of mining trucks under heavy-load climbing, acceleration, and other conditions, compensating for low-temperature battery power decay; achieves safe and fast charging at low temperatures, avoiding lithium dendrite growth and improving charging efficiency; reduces thermal management energy consumption and improves overall vehicle energy utilization; extends battery life at low temperatures; and improves system reliability.

The utility model relates to the technical field of clothes, and discloses graphene carbon nano tube electric heating clothes which comprise a clothes body and a heating assembly arranged in the clothes body and used for heating. The heating assembly comprises a copper foil electrode cloth covering strip and a plurality of groups of graphene carbon nanotube heating films arranged on the copper foil electrode cloth covering strip; through cooperation between the copper foil electrode cloth covering strip and the graphene carbon nanotube heating film, the copper foil is used as an electrode, is soft, light, thin and good in conductivity, can be bent and then compounded in the cloth to serve as an electrode connecting wire, and is smoother and more attached compared with traditional plastic wire harness connection; the graphene carbon nanotube film is stable in electrical conductivity and heat conduction performance, can be used as a good heating material after being in lap joint with the copper foil, and can keep stable heating performance in a humid environment, so that the heat preservation performance of the garment body worn on the body is guaranteed, and in a low-temperature environment, the heating efficiency of the graphene electric heating garment is remarkably higher than that of traditional heating garments; and the requirement on thermal comfort of a human body can be effectively met.

This utility model belongs to the field of battery technology and discloses a battery heating film and a battery. The battery heating film is connected to a battery cell. The heating film includes a heating film body, a conductive element, and an insulating film. The conductive element is electrically connected to the heating film body for conductive connection to an external power source. The insulating film covers the surface of the heating film body in the thickness direction. The heating film body has connection holes, and the insulating film has connection portions corresponding to the connection holes. The connection portions on both sides of the heating film body in the thickness direction are fixedly connected to limit the relative position of the insulating film and the heating film body. Thus, through the conductive element's conductive connection to an external power source, the heating film body is energized and heated, enabling uniform heating of the battery cell surface, saving on the need for a heat spreader, and simplifying the structure of the battery heating film.

A portable method and device for monitoring sodium ions in breast milk, belonging to the field of lactation status feedback, is disclosed. The method is executed after a breast milk container is installed on the main unit and includes the following steps: breast milk container identification and batch parameter loading, posture detection and gating, dry self-calibration of the electrical channel, thermal pulse temperature response acquisition and thermodynamic virtual volume feature extraction, low-frequency / high-frequency electrical response acquisition and bubble interference feature extraction, optical scattering signal acquisition and fat / turbidity proxy feature extraction, and geometric boundary compensation, temperature compensation, milk fat shielding compensation, and sodium ion concentration inversion based on the multi-dimensional features. It can also perform nursing guidance push, result storage, and edge-cloud collaborative updates. The device includes a main unit and a breast milk container. The main unit contains a heating film, a temperature probe, an optical turbidity detection module, and an electrode detection module connected to a four-electrode structure. This solution can improve the accuracy, stability, and repeatability of breast milk sodium ion detection in a home setting.

The utility model discloses an integrated film heater for an automobile air conditioner compressor, which comprises a heating film, the heating film comprises a driving control board and a heating resistor integrated on the driving control board, the two sides of the heating film are respectively provided with a flow channel shell, and the interior of each flow channel shell is of a cavity structure. Each flow channel shell is provided with a fluid inlet and a fluid outlet which are communicated with the cavity structure, an insulating layer is fixed to the side, close to the heating film, of each flow channel shell, the two sides of each insulating layer are attached to the corresponding flow channel shell and the heating film respectively, and the heating film is clamped between the two insulating layers. The flow channel shells are respectively arranged on two sides of the heating film, heat exchange is carried out on the heating film by utilizing bidirectional flow on two sides, and heat on two sides of the heating film can be fully utilized, so that the area of the heating film does not need to be increased when the heat exchange power demand is large, and the area of the whole film heater does not need to be changed. Space can be effectively utilized, the arrangement area of the membrane heater is reduced, and heat exchange efficiency is improved.

The utility model relates to the technical field of accelerator wire harness protection equipment, in particular to an accelerator wire harness protection sleeve which comprises a sleeve body, the sleeve body comprises a wear-resisting layer, a heating layer, a heat preservation layer and a strengthening layer which are sequentially arranged from inside to outside, and the heating layer is a graphene heating film; the device solves the problem that a traditional accelerator wire harness protective sleeve is poor in anti-freezing capacity.

This invention discloses a snow depth observation system and method with multi-view redundancy and rotating defrosting, including a perception layer and an edge computing unit deployed in the field. The perception layer includes a multi-camera array, environmental sensors, and an intelligent heating bracket. The multi-camera array includes at least one wide-angle camera and at least two high-precision cameras with longer focal lengths, used for panoramic acquisition and sub-centimeter-level focused observation at different scale segments, respectively. The intelligent heating bracket has a built-in heating film to support zoned temperature control. The edge computing unit performs intelligent defrosting, image enhancement, AI recognition, and multi-source observation fusion calculation based on auxiliary source weighting according to the environment and image quality. This invention avoids single-point failures through multi-view hardware redundancy, utilizes intelligent rotating heating to balance low power consumption and anti-frost, and combines frequency domain defogging and a reliability weighting algorithm driven by auxiliary sources to solve the problems of observation interruption and misjudgment caused by frost, blurring, and occlusion in high-altitude and cold environments, achieving all-weather high-precision observation.

The utility model provides a film strip carrying device and film pasting equipment. The film strip carrying device comprises a driving mechanism and a heating mechanism. The heating mechanism is mounted on a movable part of the driving mechanism, and the driving mechanism drives the heating mechanism to move between the material taking station and the film pasting station; a heating surface is arranged at the bottom of the heating mechanism, a first visbreaking layer is arranged on the heating surface, and the heating mechanism is used for heating the film strip located at the material taking station, so that the film strip is bonded to the first visbreaking layer; the heating mechanism is further used for pasting the heated film strip to the back plate located at the film pasting station, so that the film strip is bonded to the back plate, and the bonding force between the lower surface of the film strip and the back plate is larger than that between the upper surface of the film strip and the first visbreaking layer. According to the film strip carrying device, the heating mechanism can pick up and carry the film strip and can also heat the film strip so that the film strip can be attached to the back plate, suction pieces such as a suction cup do not need to be arranged, and the structural complexity and cost of the film strip carrying device are reduced.

The application discloses a laundry treating apparatus. The clothes processing equipment provided by the embodiment of the invention comprises a barrel assembly, a drying tunnel shell and a heating device. The barrel assembly is provided with a clothes processing cavity; the drying tunnel shell is connected with the barrel assembly and defines a drying tunnel communicated with the clothes processing cavity. The heating device comprises a heat conduction pipe and a heating film, at least part of the heat conduction pipe is located in the drying tunnel, and the heating film covers at least part of the outer surface of the heat conduction pipe; a runner is arranged in the heat conduction pipe, one end of the runner is communicated with an external water source, and the other end of the runner is communicated with the clothes processing cavity or the drying channel. According to the technical scheme, the space of the clothes processing equipment can be saved, and the cost is reduced.

The present application relates to a kind of multilayer structure reference body for infrared heat conduction model verification, it is related to the field of infrared model calibration verification, including aluminium plate, PVC plate, heating film and thermal barrier layer glued in turn, several sensors are pasted with spacing on the outer surface of aluminium plate by high-temperature-resistant adhesive tape, sensor is inserted between aluminium plate and PVC plate, and between PVC plate and heating film, sensor is thermosensitive sensor, sensor is connected to aviation plug by grouping threading and is electrically connected with control box integrated with sensor controller, heating film controller and power meter, the present application is packaged by the design of the temperature sensor of each layer material regionally laid out, power meter and heating film connection, with the advantages that heating power in test is recorded in real time and the surface temperature of each layer material, provide clear input condition for simulation and accurate model verification data.

The curing barn comprises a heating module and a temperature control system, and the heating module is arranged on the upper portion of the curing barn; the heating module comprises a plurality of planar heating films; the temperature control system comprises a plurality of temperature control units, a plurality of temperature detection units and a temperature control center, each temperature control unit is electrically connected with a set number of plane heating films to form a heating unit, and the temperature control units are used for adjusting the power of the plane heating films; the temperature detection unit is used for detecting the temperature in the heating range of the corresponding heating unit, comparing the temperature with a temperature threshold in a set time period and outputting a heating stopping and power reducing signal and a heating starting or power increasing signal according to a comparison result, and the temperature control unit controls the power of the planar heating film according to the output signal. The temperature control system is used for controlling the heating power of the plane heating films of the heating modules so that the heating temperatures of the heating modules can be kept consistent, and uniform temperature rise in the curing barn can be achieved for tobacco leaf curing.

This utility model discloses a keyboard with temperature control heating function and expansion dock, comprising: a bottom shell with a temperature adjustment button fixedly connected to it; a multimedia knob fixedly connected to the upper surface of the bottom shell; an audio jack on the bottom shell; a power data cable on the bottom shell; a heating film on the bottom shell; a Type-C port on the rear side of the bottom shell; three USB ports on the rear side of the bottom shell; another Type-C port on the left side of the bottom shell; another USB port on the left side of the bottom shell; and a temperature sensor on the bottom shell. Through this structure, suitable and stable warmth can be provided to the user's hands in cold winter, effectively solving the problems of easily frozen hands and reduced operational flexibility when using traditional keyboards. This allows users to maintain a comfortable operating state even in low-temperature environments, improving comfort and work efficiency during long-term keyboard use.