29results about How to "Uniform conduction" patented technology

The application belongs to the technical field of lithium batteries, and discloses a gel electrolyte taking a functionalized two-dimensional MXene material as a dispersant as well as a preparation method and application of the gel electrolyte. The gel electrolyte comprises a functionalized MXene material and a basic electrolyte; the functionalized MXene material is obtained by the following method: 1) treating a MAX phase material with a solution containing HCl and LiF, intercalating, peeling off, and then reacting with a diazonium salt solution to obtain a sulfonic acid functionalized MXene material. The application further discloses a preparation method of the gel electrolyte. The application reconstructs a lithium ion solvation structure, reduces a desolvation energy barrier, homogenizes a bulk phase electric field and ion flow, cooperatively induces formation of a stable SEI interface rich in inorganic species, significantly inhibits lithium dendrite growth, and improves interface kinetic stability. The method is simple and low in cost. The electrolyte is used in a lithium metal battery and exhibits excellent cycle performance.

The utility model discloses a novel intelligent dazzle lamp sound box, which comprises a transparent sphere, an in-sphere magnet is arranged in the transparent sphere, a transparent outer shell is fixedly arranged on the outer surface of the lower end of the transparent sphere, a milky-white inner shell is arranged on the inner surface of the transparent outer shell, and a bottom shell is fixedly arranged on the outer surface of the lower end of the milky-white inner shell. And keys are arranged on the outer surface of the bottom shell. The novel intelligent dazzling light sound box provided by the utility model not only has the auditory effect of a stereo sound box, but also has the atmosphere dazzling light effect of a lamplight ornament, so that the omnibearing stereo feeling from auditory sense to visual sense is realized. By means of the magnetic attraction function, under rotation of the motor, the small magnets in the liquid are driven to rotate, the liquid is stirred, and dazzling colors of the liquid on the top are achieved under irradiation of the RGB lamp. Through the irradiation of the RGB lamps of the crystal ball sound equipment upper lamp panel and the crystal ball sound equipment lower lamp panel at the bottom, light rays irradiate on the milky white inner shell and then are transmitted to the transparent outer shell, so that the light rays are uniformly transmitted to the outer shell, and a bright light effect is realized.

This invention relates to the field of lithium-ion battery manufacturing technology, specifically providing a full-tab battery cell for large cylindrical batteries, its preparation method, and applications. This invention innovatively employs a "winding-fixing-laser axial cutting-graded flattening" process flow, changing the traditional "cut-then-winding" process long used in the industry, achieving a breakthrough in the precision of tab forming. Specifically, after the bare cell is wound, the blank areas of each current collector layer have formed a stable stacked structure, which is precisely fixed using a special fixture and simultaneously cut along the axial direction by laser, completing the high-precision forming of multiple tabs in one step. This method fundamentally eliminates the problem of accumulated deviations caused by step-by-step operations in traditional winding processes, stably controlling the tab alignment accuracy within 0.1mm, effectively solving the long-standing problem of alignment consistency in existing technologies.

The utility model discloses a kind of heating disc and the liquid heater applied to it, it is related to heating disc technical field, comprising have: stainless steel contact layer, the stainless steel contact layer is used to directly contact with liquid, realize the heating conduction of liquid;Stainless steel base layer, the stainless steel base layer is used to bear thick film circuit or heating element, realize heat generation and conduction;Aluminum alloy soldering layer, the aluminum alloy soldering layer is between stainless steel contact layer and stainless steel base layer, for the welding of auxiliary stainless steel contact layer and stainless steel base layer;Stainless steel contact layer and stainless steel base layer of using S316 or S304 material, collocation porous aluminum alloy soldering layer, avoid heating disc surface rust, corrosion, prolong the service life of heating disc, while enhanced the overall structural stability of heating disc, and effectively improve heating efficiency, shorten the time of liquid heating.

The utility model discloses an A2L hot surface ignition temperature test special device, which comprises a test box and a spraying type pipe arranged in the test box, the surface of one end of the spraying type pipe is fixedly connected with a refrigerant tank with a valve, one side of the refrigerant tank is provided with the valve which is communicated with the interior of the refrigerant tank through the spraying type pipe, and the other side of the refrigerant tank is provided with the spraying type pipe. A glass barrel is arranged on the peripheral side, close to one end, of the spraying type pipe, a metal disc is fixedly installed on the surface of the lower end of the glass barrel, a thermocouple is fixedly installed on the surface of one side of the metal disc, a heat insulation pad is fixedly connected to the peripheral side surface of the metal disc, and one side, extending to the heat insulation pad, of one end of the metal disc is fixedly connected with a heating plate; according to the utility model, through the arrangement of the spraying type pipe, stable conveying and controlled release of the refrigerant can be realized, the refrigerant can be accurately sprayed on the metal disc, and the refrigerant is fully contacted with the hot surface, so that the ignition temperature of the hot surface is tested, and the effect of accurate test result is achieved.

The utility model provides an automatic heating pressing plate of a continuous hot press, and belongs to the technical field of continuous hot press equipment. The hot press comprises two hot press plates which are oppositely arranged, a heating plate is embedded in each hot press plate, each heating plate is composed of a plurality of heating units which are uniformly distributed, and each heating unit is provided with a heating rod, a thermocouple and a heat conduction block so as to guarantee that heat is efficiently and uniformly transmitted to a product to be processed. A liquid medium cavity is formed in the hot pressing plate and filled with a liquid medium, and the temperature of the hot pressing plate is kept stable. And a combined structure of oil absorption holes and oil absorption felts is also arranged to clean oil stains on the steel belt. According to the utility model, the problems of sealing material aging, thermal expansion deformation, local overheating and uneven heat dissipation of the pressing plate of the continuous hot press at high temperature are effectively solved, the maintenance cost is reduced, the stability of hot pressing work is ensured, and the production efficiency and the product quality are obviously improved.

The utility model relates to the technical field of lithium battery positive electrode materials, and discloses a pretreatment sagger and sintering equipment. The lithium layer is arranged at the bottom of the sagger body and is suitable for preventing lithium from being absorbed by the sagger body in the sintering process; the lithium layer is composed of one of lithium carbonate, lithium hydroxide or lithium oxide and is fixed to the bottom of the sagger body. The sintering equipment comprises a sintering furnace; the saggar bearing frame is arranged in the sintering furnace and used for fixing and arranging the multiple pretreatment saggars. The gas circulation system is used for introducing inert gas or reducing gas into the furnace in the sintering process so as to prevent lithium from being oxidized. The lithium layer can reduce direct contact between the sagger body and lithium, so that corrosion and abrasion of the sagger are reduced, and the service life of the sagger is prolonged.

The utility model discloses an anti-collision paperboard structure and belongs to the technical field of paperboards. The supporting assembly comprises core paper, reinforcing ribs are bonded to the two sides of the core paper, two first clamping grooves are formed in the upper end and the lower end of the core paper, a row of first inserting grooves are formed in the two sides of the core paper, corrugated paper is bonded to the two sides of the core paper, and a fixing assembly is bonded to one side of the corrugated paper; the sides, close to the extending plates, of the two ends of the panel are provided with a row of second inserting grooves, the upper end and the lower end of the panel are each provided with two second clamping grooves, the upper end and the lower end of the panel adhere to a bottom plate, and clamping plates are arranged on the bottom faces of the bottom plates. Through cooperation of the supporting assembly, the fixing assembly and the inserting assembly, the supporting assembly, the corrugated paper and the fixing assembly are transversely connected into a whole, a multi-dimensional supporting network is formed, impact force can be evenly conducted and dispersed through the synergistic effect of the core paper, the reinforcing ribs, the corrugated paper, the fixing assembly and the inserting assembly, and the anti-collision performance of the paperboard in all directions is improved.

The utility model proposes a kind of thermostat for chemical reagent experiment, including support load plate, the upper surface of support load plate is fixedly installed with temperature control seat, the inside of temperature control seat is equipped with support cover, the upper surface of support cover is opened with multiple placing holes, the inside of temperature control seat is opened with cavity, the inner bottom wall of cavity is fixedly installed with multiple temperature sensors, the bottom surface of temperature control seat is fixedly embedded with refrigeration guide plate, the bottom surface of refrigeration guide plate is fixedly installed with semiconductor refrigeration sheet, it is related to chemical reagent experiment field.The utility model is by the cavity of temperature control seat inside setting, can inject water liquid, utilize the good heat conductivity of water, can make the heat generated by annular electric heating wire evenly conduct to reagent, avoid local overheating, in addition by the cooperation of semiconductor refrigeration sheet and refrigeration guide plate, water liquid can be cooled directly, the problem that it is difficult to cool quickly after heating is solved, and then guarantee the experimental effect of chemical reagent.

The utility model belongs to the field of detection reagents, and particularly relates to a detection reagent cold storage device which comprises a box body, a positioning ring and a rubber ring, the inner wall of the box body is fixedly connected with a plug board, the inner wall of the box body is connected with a cover plate in a sliding mode, the plug board is provided with an adjusting assembly, the adjusting assembly comprises a supporting block, and the supporting block is fixedly connected with the positioning ring. The top of the inserting plate is fixedly connected with a supporting block, the inner wall of the supporting block is slidably connected with a guide rod, and the end face of the guide rod is fixedly connected with a limiting inclined block. The detection reagent cold storage device realizes compatible fixation of reagent tubes with different outer diameters through a replaceable positioning ring and rubber ring combined structure. By means of linkage design of a pushing ladder block and a limiting inclined block in the adjusting assembly, limiting of a positioning ring can be quickly relieved, and the positioning ring with rubber rings of different inner diameters can be replaced conveniently; the high-elasticity rubber ring is matched with the sliding bottom plate, so that the reagent tube is stably placed, shaking or toppling caused by tube diameter difference is avoided, and the universality of the device is remarkably improved.

The utility model discloses a kind of high-efficiency bar light source, it is related to the technical field of detecting light source.High-efficiency bar light source includes shell, light emitting component, cold air heat dissipation component and diffuser plate;Shell is provided with containing cavity, heat dissipation groove and opening;Light emitting piece is provided with multiple;Heat dissipation pad is abutted with the top end of circuit board and resistance;Heat dissipation pad is abutted with the side wall and top wall of containing cavity, and cover is set in the notch of heat dissipation groove;Multiple resistance is along first horizontal direction and second horizontal direction interval arrangement;Cold air heat dissipation component can input cold air from one vent to heat dissipation groove.The heat generated in the working process of light emitting component can be more evenly conducted to heat dissipation pad, cold air can absorb the heat of shell, the cold air in heat dissipation groove can contact with the top of heat dissipation pad, so that cold air can directly absorb the heat of heat dissipation pad, improve the heat dissipation effect of light emitting component, guarantee the working efficiency of this high-efficiency bar light source.

A grid type metal wire heater comprises a woven mesh and electrode assemblies located at the two opposite ends of the woven mesh. The woven mesh is composed of a plurality of transverse metal wires and a plurality of longitudinal metal wires which are orthogonally woven, the electrode assembly is connected with two opposite ends of the transverse metal wires or the longitudinal metal wires, and the surface of the woven mesh is provided with an insulating heat-conducting layer for protecting the woven mesh and conducting heat; compared with the prior art, the grid structure is formed by weaving the transverse metal wires and the longitudinal metal wires, and current can be uniformly conducted in the woven mesh under the communication action of the woven mesh and the electrode assembly, so that resistance loss is reduced, and electric energy can be converted into heat energy more efficiently; and meanwhile, the woven mesh is protected and supported under the action of the insulating heat-conducting layer, so that the woven mesh can be well adapted to surfaces with various complicated shapes.

The utility model relates to the technical field of automobile seat guard plate injection mold provides a cooling device of automobile seat guard plate injection mold, including base, the edge position department of base top all are fixed with support, the top of support is fixed with the top plate, the bottom of top plate is provided with the heat radiation structure, the heat radiation structure includes the electric push rod of installing in the top plate top two sides, the output of electric push rod of top plate bottom is installed with the template, the inside of support outside template is provided with the sliding slot, the outside of support both ends all is provided with the buffer pad, the inside of base is provided with the cooling structure. The utility model is provided with heat radiation structure, forms air cooling heat dissipation through the symmetrical distribution heat dissipation groove and heat dissipation fan, combines the equidistance first through -hole on the heat radiation plate, has increased the contact area of airflow and mould greatly, has accelerated the heat emission of the mould surface after injection molding.

The invention relates to the technical field of hygienic products, and particularly discloses a special sanitary towel for a puerpera based on a phase-change material and a preparation method of the special sanitary towel. The product comprises a surface layer, a flow guide layer, an absorption core body and a leakage-proof bottom layer which are sequentially overlapped, the surface layer contains a microencapsulation phase change material, the flow guide layer is of a double-layer structure of a sulfonylation carboxymethyl chitin fiber hydrophilic layer and a viscose fiber reverse osmosis resisting layer, and the absorption core body is formed by compounding a liquid rapid diffusion layer with gradient pores and a macromolecule water locking layer. The preparation method comprises the steps of microcapsule preparation, functional layer preparation, flow guide layer needling compounding and sectional type hot pressing assembly forming, and sectional type hot pressing is matched with polyolefin hot melt adhesive to adapt to the characteristics of all the layers. The product is suitable for the postpartum use of a puerpera, can realize rapid conduction diffusion and stable latching of liquid, and meanwhile, adjusts the sensible temperature; the preparation method is high in process adaptability, the firm structure of the product can be guaranteed, the structural and functional integrity of each functional layer is protected, and the overall stability of the product is excellent.

This application relates to the field of battery technology, and more particularly to a battery pack. The battery pack includes a housing, a cover, a heat spreader, a cooling component, and multiple battery cells. The housing has mounting slots; the cover is located at the opening of the mounting slot; each battery cell is spaced apart in the mounting slot, and each cell has a shoulder at the end furthest from the bottom of the slot; the heat spreader connects to each shoulder; the cooling component is located on the side of the heat spreader facing away from the shoulder, and a cooling channel is formed inside the cooling component, through which a cooling medium flows to achieve heat exchange with the heat spreader. This battery pack, by incorporating a combined heat dissipation structure of a heat spreader and a cooling component at the shoulder, firstly achieves targeted heat dissipation in this core heat-generating area, reducing heat accumulation at the shoulder from the source, avoiding the generation of thermal island effects, effectively improving the overall thermal management performance of the battery pack, slowing down cell aging, and extending the battery pack's service life.

The utility model relates to the technical field of alcohol recovery equipment, in particular to an alcohol recovery device which comprises a heating tank and a recovery tank arranged on the left side of the heating tank, a liquid inlet valve port and a controller are fixedly installed on the rear side of the heating tank respectively, a condenser is arranged on the top of the heating tank, a return pipe is arranged on the outer side of the condenser, and a liquid outlet valve port is arranged on the return pipe. A heating mechanism is arranged in the heating tank, a liquid outlet valve port and a nitrogen inlet are fixedly formed in the left end of the recycling tank, a pressure sensor is arranged on the rear side of the recycling tank, a lining layer is arranged in the recycling tank, and a PTFE composite layer, an aluminum foil layer and a polyvinyl alcohol composite layer are arranged in the lining layer. According to the alcohol recovery device, the structural design in the heating mechanism is utilized, and under the combination of the electric heating pipe and the heat conduction layer, generated heat can be uniformly conducted to the inner side of the heating tank, so that the heating time is effectively shortened, and the energy consumption of the device is prevented from being increased.

This invention provides a GGNMOS structure for electrostatic discharge (ESD) protection, comprising: a substrate, two sets of current discharge modules, and a ring-shaped heavily doped region. Each set of current discharge modules includes multiple discharge units; wherein each discharge unit includes: two source terminals, one drain terminal, two gate terminals, one floating heavily doped region, multiple lightly doped drain regions, and an isolation layer. In each discharge unit, this application forms a DN+ / Psub / P+ (Diode) by embedding a floating heavily doped region in the drain terminal. By adjusting the distance between the floating heavily doped region and the sub-drain terminal, the breakdown voltage of the Diode is made greater than VDD and less than the trigger voltage of the parasitic NPN. This allows the Diode to trigger before the parasitic NPN triggers, injecting a large number of electron-hole pairs into the substrate, increasing the substrate current, reducing the trigger voltage, and ensuring uniform device conduction, thereby improving the ESD protection performance of the GGNMOS.

The invention relates to an air-cooled cold and hot vehicle-mounted cup holder. The technical problems of uneven heat exchange, large temperature difference and the like in the prior art are solved. Comprising a cup body assembly, the inner side of the cup body assembly is provided with a cup stand used for containing articles, the upper end of the cup stand is provided with a sealing structure capable of forming a sealed space on the inner side of the cup stand when the articles are placed, the cup body assembly is internally provided with a heat exchange cavity located on the outer side of the cup stand in the circumferential direction, and the lower end of the cup body assembly is provided with a thermoelectric module assembly located below the cup stand. The thermoelectric module assembly is provided with cold end fins extending into the heat exchange cavity, and the heat exchange cavity communicates with the sealed space through the inner circulation mechanism and conducts heat convection. The vehicle-mounted cup holder has the advantages that airflow is driven by the internal circulation mechanism to circularly flow between the heat exchange cavity and the cup holder sealed space, and the precise layout of the heat exchange hole group is matched, so that the temperature in the sealed space is quickly and uniformly conducted, refrigeration or heating of articles such as drinks can be quickly completed, and the problems that a traditional vehicle-mounted cup holder is slow in heat exchange and non-uniform in temperature are solved.

The invention discloses an ejection structure for a mobile phone support product, and relates to the technical field of mobile phone support product ejection, the ejection structure comprises a mold base and a first assembly mounted on the mold base, the cross section of the mold base is U-shaped, and the first assembly comprises an ejection transmission assembly, a mold forming assembly and a guide positioning assembly; the ejection transmission assembly comprises an ejector pin bottom plate and an ejector pin panel, the ejector pin bottom plate is in transmission connection with the ejector pin panel through a guide column, and the ejector pin panel is provided with a positioning hole used for installing the ejection execution assembly; through cooperative operation of a sliding rod, a spiral groove, a limiting body and the like in the fourth assembly, linear ejection force restored by a spring is converted into stable rotary lifting motion, the ejection speed of the inclined ejection block is further reduced through the design of a large spiral lead, the lifting stability is improved, uniform power transmission is achieved in cooperation with composite ejection motion of the inclined ejection block in the 45-degree direction, and the service life of the inclined ejection block is prolonged. And the problem of unbalanced ejection of the small bracket is thoroughly solved, and the product deformation rate is reduced to an extremely low level.

The utility model relates to battery technical field discloses a lithium battery oven heating plate, including substrate, the one side surface of substrate is equipped with heating film, heating film includes mould body and is embedded in the heating element of mould body and is arranged in continuous circuit, the distribution density of heating element presents increasing setting along the central region of mould body to edge region, the one side of heating film away from substrate is equipped with heat conduction layer, and heat conduction layer includes multiple heat conduction parts that are arranged in interval, the utility model discloses through heating film can be pertinence compensation oven edge heat loss, and the temperature gradient is weakened from the heat source distribution level, and the heat conduction layer of interval arrangement further realizes the uniform conduction of heat, and the heating uniformity is greatly promoted, guarantees the battery capacity consistency and cycle life, the present application significantly improves temperature uniformity and reduces energy consumption, solves the problem that traditional heating plate thermal stress cracks and edge heat dissipation is too fast, is applicable to large -scale lithium battery drying process.

The utility model relates to the technical field of contaminated soil remediation device, and disclose a kind of for high-efficiency heat transfer device of thermal desorption soil remediation, the high-efficiency heat transfer device for thermal desorption soil remediation, including sealing cover, the bottom of the sealing cover is provided with heat cycle assembly.The high-efficiency heat transfer device for thermal desorption soil remediation, active push heat transfer oil circulation, break natural convection dependence, make heat transfer oil flow quickly and evenly, heat can be faster from heating zone conduction to soil contact area, realize efficient heat cycle system, oil temperature distribution is more uniform, avoid local overheating, pipe wall temperature difference big and other problems, radiation fin increases heat exchange surface area, larger area and soil contact, heat is more easily scattered, improve the heat flux in unit time, accelerate soil temperature, arc piece turbulence heat transfer oil flow path, form vortex or spiral flow, break the temperature boundary layer in oil, improve the heat flux between cylinder wall and heat transfer oil.

This utility model provides a heated lumbar support and seat. The lumbar support includes: a backrest; a support assembly connected to the backrest for supporting the occupant's back; wherein the support assembly includes a support body with a heating element on it; and a functional component disposed on the support body, located on the side of the support assembly closer to the occupant and corresponding to the heating element, and detachably connected to the support body. This utility model, through its modular and detachable structural design, achieves flexible integration and convenient maintenance of heating and other health functions, thereby enhancing the product's multifunctionality, personalized experience, and lifespan.

The utility model relates to the technical field of wood-plastic extrusion dies, in particular to a high-speed wood-plastic extrusion die which comprises a first die cavity ring, and a first heating die cavity ring, a second heating die cavity ring, a second die cavity ring, a first forming die and a second forming die are sequentially mounted on one side of the first die cavity ring in the length direction of the axis of the first die cavity ring. The adjacent side faces of the first heating mold cavity ring and the second heating mold cavity ring are each provided with a containing cavity. Compared with the prior art, the extrusion die has the advantages that the first die cavity ring, the first heating die cavity ring, the second heating die cavity ring, the second die cavity ring, the first forming die and the second forming die are arranged and fixedly connected with one another to form the extrusion die, meanwhile, the heating ring is installed in the containing cavity, and then the heating ring is powered on to generate joule heat; according to the wood-plastic extrusion die, the extruded molten wood-plastic can be secondarily heated conveniently, meanwhile, heat is evenly conducted to the two sides, the whole die is kept at the good forming temperature, and therefore the appearance structure of the extruded wood-plastic is guaranteed, and the problems existing in the prior art are effectively solved.

The invention relates to the technical field of nerve and blood vessel intervention, in particular to a pushing-enhanced nerve and blood vessel dilation catheter which comprises a far-end rapid exchange stent mechanism, a guide wire used for pushing the far-end rapid exchange stent mechanism into nerve and blood vessels and a near-end pushing mechanism. The near-end pushing mechanism is connected with the far-end rapid exchange stent mechanism in parallel through the transition connecting part, the guide wire travels in the far-end rapid exchange stent mechanism along the outer side of the near-end pushing mechanism and is used for reducing unnecessary deformation of the guide wire, and the balloon dilatation stent is preassembled on the far-end rapid exchange stent mechanism and is connected with the near-end pushing mechanism. The problems that in the prior art, a neurovascular dilation catheter is prone to deformation and even bending in the operation process, the direction of pushing force is difficult to change, the in-place rate of a stent is reduced, meanwhile, when passing through a bent part of a blood vessel, bounce is prone to occurring, the controllability of the far end of the stent becomes poor, the possibility that the far-end blood vessel is torn and perforated is likely to be increased, and the stent cannot be damaged are solved. And the surgical risk is increased.

The utility model discloses a heat crack resistant casting reinforcing rib structure of an automobile brake disc, which is arranged on an inner side friction plate close to a wheel and positioned in a space between an outer side friction plate and the inner side friction plate, and comprises a plurality of radial reinforcing ribs, an outer ring reinforcing rib and an inner ring reinforcing rib, each radial reinforcing rib is arranged in an S shape, the outer ring reinforcing ribs are annularly arranged on the outer ring of the inner side friction plate in the circumferential direction of the inner side friction plate, and the inner ring reinforcing ribs are annularly arranged on the inner ring of the inner side friction plate in the circumferential direction of the inner side friction plate. According to the brake disc, the radial reinforcing ribs, the outer ring reinforcing ribs and the inner ring reinforcing ribs are matched with one another to form a complete reinforcing structure system and act together in different directions, so that the brake disc can bear complex stress conditions, the overall mechanical property is improved, and the brake disc better meets the requirements under various brake conditions; and safe and reliable operation of an automobile brake system is ensured.

This invention proposes a food container comprising a container body and a silicone inner lid. The inner lid is detachably and sealingly connected to the container body. The inner lid has a planar structure in the center with several air holes. The silicone thickness of the inner lid planar structure is 0.3-0.6 mm. This invention, through optimized inner lid structure and material compatibility, achieves reliable sealing, visualized steaming / cooking processes, and flexible application in multiple scenarios, thus enhancing the food storage and cooking experience.

This invention provides a GGNMOS electrostatic discharge (ESD) protection device and its fabrication method, comprising: a P-type substrate, an N-type buried layer, a first N-type deep well, a second N-type deep well, and a first P-type well; the first N-type deep well and the second N-type deep well are further provided with a first N+ injection region and a fourth N+ injection region; the first P-type well is provided with a P-type semiconductor substrate and a gate region, a source region, and a drain region of a first NMOS, wherein the drain region of the first NMOS is widened; the first N-type deep well, the second N-type deep well, and the first N+ injection region, the fourth N+ injection region, and the N-type buried layer constitute an N-type isolation band; the P-type semiconductor substrate is connected to the source region of the first NMOS and serves as the cathode of the device, and the drain region of the first NMOS is connected to the first N+ injection region and the fourth N+ injection region on the first N-type deep well and the second N-type deep well and serves as the anode of the device; the gate region of the first NMOS is located between the second N+ and third N+ injection regions; the gate region of the first NMOS is connected to a coupling circuit of a first PMOS, a capacitor C, and an inverter.

A copper-iron co-fired inductor and its preparation method are disclosed. The copper-iron co-fired inductor comprises: a square magnetic core, the surface of which is covered with an insulating layer; two flat copper wires, which are arranged parallel to each other on the surface of the magnetic core covered with the insulating layer and adhere to three adjacent faces of the square magnetic core, with the ends of the flat copper wires extending to adhere to a fourth face of the square magnetic core; and a shielding layer, which is adhered to the three surfaces of the square magnetic core with the flat copper wires attached, and is pressed together with the square magnetic core, the insulating layer, and the flat copper wires to form an integrated blank. The blank is then co-fired and sintered to form the copper-iron co-fired inductor. The present invention also provides a method for preparing the copper-iron co-fired inductor. The copper-iron co-fired inductor of the present invention, through the design of the aluminum nitride insulating layer, parallel flat copper wires, and iron-silicon-aluminum shielding layer, greatly improves heat dissipation performance.