32results about How to "Reduce R&D and manufacturing costs" patented technology

The invention provides a shipbuilding man-machine engineering simulation evaluation method and a system. The method comprises that S1. the product data, tool data, building resource data, virtual human data and technological requirements which the shipbuilding technology relates to are input, and a environment of shipbuilding man-machine engineering simulation evaluation is established; S2.according to the input technological requirements, the processes of shipbuilding technology is simulated and the critical technological processes of shipbuilding are screened out; S3.the critical technological processes of shipbuilding screened out is performed the virtual human operation simulation; S4.the virtual operation of the virtual human is performed a man-machine engineering evaluation and a result of man-machine engineering evaluation is acquired; and S5.judging if the result of man-machine engineering evaluation reaches the standard, if the result reaches the standard, the result of shipbuilding man-machine engineering simulation which the result of man-machine engineering evaluation that reaches the standard corresponds to are output, if the result does not reach the standard, go back to the step 2. The shipbuilding man-machine engineering simulation evaluation method has the advantages of achieving man-machine engineering simulation and analysis and evaluation for the shipbuilding technology at design stage and avoiding the design mistake.

The invention discloses a magnetic absorption type connecting structure of a display device, which comprises a front frame, a rear cover and a display screen, wherein the display screen is connected and fixed in the rear cover, and the front frame is in magnetic absorption connection with the rear cover or the display screen through a magnet block. Compared with the prior art, the connecting structure in which the front frame is in magnetic absorption connection with the rear cover or the display screen through the magnet block has the characteristics of high assembly efficiency, low assembly strength, convenience for disassembly, low requirements for assembly technology, low research and development manufacture costs, good assembly quality and attractive appearance. The connecting structure can be widely used in electronic display devices, such as televisions, mobile phones, computer displays and the like.

The invention provides a circuit and a method for detecting audio frequency, wherein the audio frequency detecting circuit comprises a waveform conversing module for converting the collected audio frequency sine wave signal into square wave signal, and a frequency detecting module for detecting the audio frequency according to the square wave signal. The audio frequency detecting circuit specifically comprises a counting sub-module for counting the pulse number of the square wave signal in the pre-set time and a calculating sub-module for calculating the audio frequency parameter according to the pre-set time and the pulse number. The circuit and method for detecting audio frequency can improve the use efficiency of CPU, reduce manufacturing cost, shorten the research and development period and improve the test speed and efficiency.

Disclosed is an accelerating tube. The accelerating tube comprises a plurality of accelerating cavities,at least one coupled cavity and an adjustment assembly. The coupled cavities are coupled to two adjacent accelerating cavities in a plurality of accelerating cavities, cavity walls of the coupled cavities are elastically deformable within a predetermined range, the adjustment assembly is disposed outside of the coupled cavities, the adjustment assembly comprises at least a actuating part and a driving parts, the actuating parts are coupled to the cavity walls of the coupled cavities driven by the driving parts, The cavity walls of the coupled cavities are elastically deformable by the effect of the actuating parts to change the output energy of the accelerating tube.

The invention discloses a lens filtering device. The device comprises a base, a switching sheet, a switching driving mechanism and an upper cover; the lens is fixedly connected through a lens connecting hole in the base; a first light filter and a second light filter are arranged on the switching sheet; the switching driving mechanism acts on the switching sheet to switch the first light filter and the second light filter. The lens filtering device has the advantages that the structure is simple, few parts are used, the filtering stability of the switching sheet can be improved, and meanwhile, switching sheet can be conveniently assembled to a lens.

The invention relates to a vehicle body opening / closing piece and a connecting method thereof, wherein the opening / closing piece comprises at least one external part, at least one internal part and at least one connecting piece; the connecting piece is in a shape of an arch bridge, and one end of the connecting piece is fixedly connected with one end of the external part via an overlapping way while the other end of the connecting piece is fixedly connected with the external part via an elastic piece; and the connecting piece is fixedly connected with the top or side part of the internal part. When a new vehicle model is developed, even if the external part is changed, the structure form of the connecting piece can be changed to ensure that the internal part is not adjusted, and the specified connection mode ensures that the external part, the connecting piece and the internal part form a reliable whole so as to form a new opening / closing piece structure. The invention has the beneficial effects that: by the vehicle body opening / closing piece in the invention, a new vehicle model can be developed on the premise that only the external part is replaced and the internal part is unchanged so as to bring great convenience to the same platform serialization vehicle model development. The invention can reduce the research development and manufacturing cost of the whole vehicle, shorten the development cycle, improve the development quality, reduce the investment risk and enhance the market competitive power.

The invention discloses an MOS structure trench diode device and a manufacturing method thereof. The MOS structure trench diode device comprises a silicon substrate and an epitaxial layer which are sequentially arranged from bottom to top, wherein a primitive cell trench, a primitive cell large trench, an extension trench and a cut-off trench which are sequentially arranged are formed in the epitaxial layer; the inner side walls of the primitive cell trench, the primitive cell large trench, the extension trench and the cut-off trench are sequentially provided with a silicon dioxide outer layerand a polycrystalline silicon filling layer; a gate oxide layer is arranged in an area between two adjacent primitive cell grooves on the epitaxial layer, and a polycrystalline silicon layer is arranged above the gate oxide layer; first doped regions and second doped regions are arranged on the left sides and the right sides of the tops of the primitive cell groove, the primitive cell large groove, the extension groove and the cut-off groove; third doped regions are arranged on the left side and the right side of the top of the primitive cell groove and the side, close to the primitive cell groove, of the primitive cell large groove. The device also includes a first metal layer and a second metal layer arranged on the left side and the right side. By introducing the voltage division and electric field shielding effects of the trench MOS, the performance of the device is improved, and the application field is broadened.

The invention relates to the technical field of environmental chemistry monitoring, in particular to a seawater multiparameter sensor based on a full-wavelength spectrum method. The seawater multiparameter sensor comprises a housing, wherein a filtering unit, a pressure reduction unit, a temperature-salinity monitoring and controlling unit, a detection unit, a waste liquid tank and a power supply. The seawater multiparameter sensor based on the full-wavelength spectrum method applies a single detector to achieve the multiparameter detection purpose based on spectrum detection. Due to the fact that multiparameter detection is achieved by adopting the spectrum method, most of devices are shared, the overall energy consumption can be reduced, the underwater operating time can be prolonged, the cruising power is improved, and possibility is provided for system integration. By adopting the design, the seawater multiparameter sensor is integrated in the same double-layer pressure-resistant cabin, normal work of the multiparameter sensor under the deep sea condition can be ensured, the operation that a titanium alloy coated sensor housing is designed for a single sensor is also avoided, and the cost is effectively reduced.

The invention provides an unmanned aerial vehicle charging device. The unmanned aerial vehicle charging device comprises an unmanned aerial vehicle charging positioning mechanism and a charging coil transmitting platform, wherein the unmanned aerial vehicle charging positioning mechanism comprises a charging platform transmission device, a bottom plate, an unmanned aerial vehicle landing plate anda positioning device; the charging platform transmission device comprises a front-and-back transmission device and a left-and-right transmission device, and the positioning device comprises a left-and-right positioning device and a front-and-back positioning device. The charging device is advantaged in that the unmanned aerial vehicle lands on the unmanned aerial vehicle landing area after passing through the GPS positioning base station, the unmanned aerial vehicle can be accurately docked with the charging coil transmitting platform through the interaction mode of the unmanned aerial vehicle charging positioning mechanism, the docking mode is simple and efficient, the research and development manufacturing cost of the base station and the unmanned aerial vehicle corresponding module islow, and dependence of the unmanned aerial vehicle on a sensor is reduced.

The invention belongs to the technical field of nondestructive detection equipment and particularly relates to an endoscope. The endoscope comprises a host, a handle and an intubation assembly, wherein the host is embedded with a display screen; the handle comprises a holding part and a mounting part; the intubation assembly is arranged at the mounting part; the intubation assembly is provided with a probe for detection; the mounting part is detachably connected with the host, and opposite sides of the mounting part and the host are provided with data interfaces capable of being mutually inserted cooperatively; and the host acquires data collected by the endoscope and image information through the data interface and displays the data and the image information through the display screen. The endoscope provided by the invention has the advantages that because the opposite sides of the host and the handle are provided with the data interfaces capable of being mutually inserted cooperatively and a detachable structure is formed between the host and the handle, the handle and hosts in different sizes can be mounted together for use, and a complete set of products in different sizes do not need to be manufactured so that the research and development cost and manufacturing cost are reduced as well as the use cost of users is reduced.

The invention relates to a hand-held oximeter with modular construction. A pair of pivot columns used for being connected with upper case are arranged between the lower surface of a finger hole and power wire extraction groove along the two sides of longitudinal direction of the hand-held oximeter; at the position near the upper end of each pivot column, the pivot column is provided with a pivot extending outside along the transverse direction of the hand-held oximeter; a pair of protuberances are arranged at the two sides of the lower surface of the finger hole along the longitudinal direction of the hand-held oximeter, and the distance between the protuberances is less than the width of the hand-held oximeter; a platform is respectively arranged at the transverse outer side of the two protuberances; the distance of the transverse outer sides of the two pivot columns is less than the distance of the transverse outer sides of the two protuberances of the hand-held oximeter; and the power wire extraction groove is arranged at one side of power wire extraction port far away from the pivot. According to the invention, for each style of hand-held oximeter, the lower case requires no special design or special opening, thus significant development and manufacturing costs can be saved.

The invention relates to single-galvanometer big-area additive manufacturing laser forming equipment and a forming method, and belongs to the technical field of additive manufacturing. The equipment comprises a point light source or linear light source, a galvanometer, a lens, a forming bin, a forming substrate, a transmission mechanism and a fixed platform. The galvanometer or the forming bin canrotate around the center axis of the forming bin, so that the scanning area of lasers on a forming surface rotates relative to the forming surface. Particularly, a rotary device capable of enabling the galvanometer to rotate around the center axis of the forming bin is mounted at the bottom of the galvanometer, or a rotary assembly capable of enabling the forming bin to rotate around the center axis of the forming bin is mounted at the bottom of the forming bin. According to the single-galvanometer big-area additive manufacturing laser forming equipment and the forming method, the forming area of the laser forming equipment is four times that of traditional equipment through the single laser galvanometer, the technical problem that the single-light-source forming area of traditional additive manufacturing equipment is limited is solved, the complex coordination control process during work of a multi-laser-galvanometer system is avoided, and meanwhile the problem that forming of a spliced area fails is avoided. The number of core components of the equipment is small, and the development and manufacturing cost of the equipment is reduced.

The invention discloses an anti-fouling license plate installation device for off-road vehicles. The anti-fouling license plate installation device comprises a license plate installation box, a license plate box cover, a cycle cleaning assembly, a motor drive assembly, a mud scraping plate and a tension structure. The front side of the license plate installation box is detachably covered with thelicense plate box cover, a license plate body is installed in the middle of an inner cavity of the license plate installation box, and the motor drive assembly is located on the right side of the license plate body. The license plate body and the motor drive assembly are arranged in an inner cavity of the cycle cleaning assembly, the cyclic cleaning assembly is installed in the license plate installation box, the tension structure is installed on the left side wall of the license plate installation box, and the mud scraping plate is arranged on the license plate box cover. According to the anti-fouling license plate installation device for the off-road vehicles and a use method of the anti-fouling license plate installation device, the license plate body can be well protected; it is guaranteed that an internal transmission mechanism is not damaged caused by foreign object clamping and resisting; and complex sensors or control elements are not required to be used, the cost of device research, development and manufacture can be saved, and the failure rate of the device is reduced.

The invention provides a server and a case thereof. The case of the server comprises a shell and a fan frame. The shell is provided with a front side and a rear side which are opposite to each other. The fan frame is arranged in the front side or the rear side of the shell in a steerable mode. The case can be used for different types, so that the research and development and manufacturing cost of the server and the case is reduced.

The invention provides a slurry dipping machine, which aims to solve the problems of low slurry utilization rate and high production cost of a shuttering dipping method by adopting a traditional drum scraper type slurry dipping machine. The slurry dipping machine comprises a slurry drum, a rotary driving device and a scraper, wherein the slurry drum is rotatablely installed on a base, the rotary driving device is installed in the base, the power output end of the rotary driving device is connected to the bottom of the slurry drum, and the scraper is installed in the slurry drum by virtue of a pillar. The slurry dipping machine is characterized by further comprising an insert block, wherein the insert block is removably installed in the slurry drum, and a mold cavity is formed in the insert block and is used for containing a to-be-dipped shuttering.

The invention belongs to the field of heat dissipating devices, and provides a liquid-cooled heat dissipating device. The liquid-cooled heat dissipating device comprises a heat conducting plate used for being connected with a heat source and a copper plate, wherein a mounting groove is formed in the upper end of the heat conducting plate; and the copper plate is arranged in the mounting groove, the lower end of the copper plate is provided with a heating conducting surface which is attached to the inner end surface of the mounting groove tightly, a liquid inlet surface and a liquid outlet surface are arranged at the two ends of the copper plate correspondingly and both are oblique tangent surfaces, a plurality of micro channels used for circulating of coolants are arranged in the copper plate, one ends of the micro channels are cut into lotus-type liquid inlets by the liquid inlet surface, and the other ends of the micro channels are cut into lotus-type liquid outlets by the liquid outlet surfaces. Compared with the prior art, the liquid-cooled heat dissipating device has the advantages that the structure is simple, and the development and manufacturing cost is low; and the areas of the liquid inlets and the liquid outlets of the micro channels are increased, so that the volume of the coolants passing through the micro channels is increased, and the cooling effect is greatly improved.

The invention provides lithium battery pole piece cleaning equipment and method. The lithium battery pole piece cleaning equipment comprises a main control unit, a fixing device, a wetting device, a dust suction device and a cleaning device, wherein the fixing device, the wetting device, the dust suction device and the cleaning device are connected with the main control unit. The fixing device isused for fixing pole pieces. The wetting device is used for spraying a wetting agent to a cleaning area of each pole piece, so that cleaning is convenient to conduct, and abrasion of the pole pieces is reduced. The dust suction device is used for collecting coating particles generated after cleaning. According to the cleaning device, the powder brushing work is conducted on the pole pieces throughcleaning brushes. By means of the lithium battery pole piece cleaning equipment and method, a local coating can be cleaned rapidly, and pole lugs can be welded conveniently; meanwhile, the cleanliness and flatness of each cleaning area can be reported, the research and development cost of an enterprise can be remarkably lowered, and economic benefits of the enterprise are increased; market competitiveness of products is powerfully improved, and the equipment and method can be widely applied to production conveniently; and the great production practice significance is achieved.

The invention discloses a dual-unit cube satellite platform which comprises a main force bearing mechanism, a windward face battery array, a leeward face battery array, a sky-facing face battery array, a ground-facing face battery array, a first unfolded battery array, a second unfolded battery array and a circuit module sets. In the cube satellite flight direction, the windward face battery array is arranged on the windward face of the main force bearing mechanism, the leeward face battery array is arranged on the leeward face of the main force bearing mechanism, the sky-facing face battery array is arranged on the sky-facing face of the main force bearing mechanism, the ground-facing face battery array is arranged on the ground-facing face of the main force bearing mechanism, the first unfolded battery array and the second unfolded battery array are arranged on the other two faces of the main force bearing mechanism, and the circuit module sets are fixed in the main force bearing mechanism. The dual-unit cube satellite platform has the remarkable advantages of being low in mass, small in size, low in cost, short in research period, high in functional density, wide in application range and the like.

The invention belongs to the technical field of washing machines, and in particular relates to an outer tub of a washing machine and a washing machine. An outer tub of a washing machine, the upper part of which is provided with an overflow port, wherein, the inner wall of the outer tub of the washing machine is provided with a water retaining rib located below the overflow port, and the water retaining rib extends from bottom to top to cover the overflow port correspondingly, and the overflow port and the water retaining rib There is an overflow gap between them. The outer barrel of the washing machine of the present invention can not only avoid the accidental overflow of the water flow to the outside of the washing machine, but also is safe and reliable. Moreover, it is suitable for washing machines with spray washing function, does not need to re-open new molds, and reduces R&D and manufacturing costs. In particular, it is helpful to improve the effect of spray washing, the washing effect of clothes is better, and the application prospect is good.

The invention discloses a vehicle B-pillar fracture test method and system, and relates to the field of vehicle safety. The method includes creating a vehicle collision simulation model and performing vehicle collision simulation to obtain the target intrusion amount of the B-pillar; The actual installation form in the car, design a test bench for crash test on the B-pillar, and create a B-pillar collision simulation model based on the designed test bench; perform collision simulation in the B-pillar collision simulation model, and adjust the collision speed , until the intrusion amount of the B-pillar in the collision simulation is equal to the target intrusion amount, and the collision speed at this time is taken as the target speed; the B-pillar to be tested is fixed on the designed test bench, and the trolley is driven to adopt the target speed for the test B The collision test is carried out on the pillar, and the deformation of the B-pillar to be tested during the entire collision test process is recorded at the same time. The present invention can effectively save vehicle R&D and manufacturing costs, and can also effectively improve the efficiency of B-pillar fracture investigation, saving time and effort.

The invention discloses a pressure control valve for an oil sprayer. The pressure control valve comprises an armature, a solenoid valve element, an oil sprayer intermediate, an electromagnet and a solenoid valve spring, wherein the armature is connected with the solenoid valve element; the solenoid valve element is connected with the oil sprayer intermediate in a sliding manner; the solenoid valve spring is arranged in a central hole of the electromagnet and is connected with the solenoid valve element; oil containing circular grooves and high-pressure oil inlets which are communicated with the oil containing circular grooves are formed in the solenoid valve element; a low-pressure oil return hole and a static oil drainage hole which are communicated with each other are formed in the oil sprayer intermediate; a control cavity is formed by the solenoid valve element and the oil sprayer intermediate; and the solenoid valve element slides vertically in the oil sprayer intermediate under the joint effect of solenoid force, solenoid valve spring force and hydraulic force, and the closing or opening of the high-pressure oil inlets and the low-pressure oil return hole is controlled, so that the aim of adjusting the change of hydraulic force in the control cavity is achieved. According to the pressure control valve, during an oil spraying process, no high-pressure fuel oil flows back to a fuel oil tank through the oil inlets, the oil outlet and a solenoid valve of the control cavity, so that unnecessary high-pressure fuel oil waste is avoided; and the spraying response speed of the oil sprayer is improved.

The system includes some exclusive-or gates. Number of input end of each exclusive-or gate is equal to number of metal layers. Each input end of each exclusive-or gate is corresponding to each metal layer, and then each input end is connected to electrical source or ground of corresponding metal layer. An output of each exclusive-or gate represents one bit of binary number. All outputs from exclusive-or gates constitute string in binary to represent ID code of chip. The invention also discloses method for configuring ID code of chip. Advantages are: changing ID code of chip by minimal change made for chip, and lowering cost. The invention is suitable to chip in structure of multiple metal layers, and applicable to procedure for designing and manufacturing IC.

The invention provides a high-precision fixture and method for measuring the lithium plug impedance of the negative pole piece of a lithium ion battery. The fixture comprises a sealing chamber device,a lithium sheet interface flattening and fixing device, a pole spacing adjusting device, and a to-be-tested pole piece fixing device. The sealing chamber device is used to ensure that the measuring environment is free of water and oxygen. The lithium sheet interface flattening and fixing device is used to install a lithium piece reference electrode. Through a flat thread on the upper section, thesurface of a lithium piece is flattened to ensure consistent pole spacing. When the surface is flattened, good contact between the lithium piece and an electrode fixing device is ensured through large pressure. The pole spacing adjusting device adjusts the interface spacing between the reference electrode and a measured electrode according to the interface flatness of the measured electrode, so as to sure that the pole spacing between different groups is consistent. The to-be-tested pole piece fixing device uses micro-pore negative pressure to fix the tested pole piece to ensure good contactbetween a pole piece current collector and a lead. The high-precision impedance measuring method for the negative pole piece of the lithium battery can quickly evaluate the impedance of the negative electrode formula between different groups, can significantly reduce the screening time and the evaluation cost of the groups, improves the economic benefit of an enterprise, can be widely applied in application, and has a significant practical significance in production.

The invention provides a high-precision fixture and method for measuring the lithium-embedded impedance of the negative pole piece of a lithium-ion battery, including a sealed cabin device, a lithium piece interface leveling and fixing device, an electrode spacing adjustment device, and a pole piece fixing device to be tested; The sealed cabin device is used to ensure that the measurement environment is in an anhydrous and oxygen-free environment; the lithium sheet interface is flat and the fixing device is used to install the lithium sheet reference electrode, and through the upper flat thread, the lithium sheet surface is flat to ensure the electrode spacing Keep consistent and smooth the surface while using high pressure to ensure good contact between the lithium sheet and the electrode fixing device; the electrode spacing adjustment device adjusts the interface spacing between the reference electrode and the tested electrode according to the interface flatness of the tested electrode, Ensure that the pole spacing between different groups remains consistent; the pole piece fixing device to be tested uses microporous negative pressure to fix the pole piece to be tested to ensure good contact between the current collector of the pole piece and the lead wire. The method for measuring the high-precision impedance of the lithium battery negative pole piece according to the present invention can quickly evaluate the impedance of the negative electrode formula between different groups, can significantly reduce the group screening time and evaluation costs, improve the economic benefits of the enterprise, and is beneficial to a wide range of applications. The application in production has great practical significance in production.

The invention discloses a vehicle B column fracture test method and system, and relates to the field of vehicle safety, and the method comprises the steps: creating a whole vehicle collision simulation model, and carrying out the whole vehicle collision simulation, and obtaining the target intrusion amount of a B column; based on the actual installation form of the B column in the whole vehicle, designing a test bed for carrying out a collision test on the B column, and creating a B column collision simulation model based on the designed test bed; performing collision simulation in the B column collision simulation model, adjusting the collision speed until the intrusion amount of the B column in the collision simulation is equal to the target intrusion amount, and the collision speed at the moment serving as the target speed; fixing a to-be-tested B column on a designed test bench, driving the trolley to perform a collision test on the to-be-tested B column at the target speed, and meanwhile, recording the deformation condition of the to-be-tested B column in the whole collision test process. According to the invention, the research and development and manufacturing cost of the vehicle can be effectively saved, the B-pillar fracture troubleshooting efficiency can be effectively improved, and time and labor are saved.

The invention relates to a multipurpose aircraft. The multipurpose aircraft comprises a fuselage and wings. Each wing comprises a base arranged at the top of the fuselage; a front wing, which comprises a front wing body and a first rotor wing, wherein the front wing body is hinged to the base, the first rotor wing is arranged on the front wing body, and the axis of the first rotor wing is parallel to the take-off and landing direction of the multipurpose aircraft; a main wing, which comprises a main wing body and a second rotor wing, wherein the main wing body is arranged on the base, and the second rotor wing is arranged on the main wing body; and a rear wing, which comprises a rear wing body and a third rotor wing, wherein the rear wing body is hinged to the base, the third rotor wing is arranged on the rear wing body, and the axis of the third rotor wing is parallel to the take-off and landing direction of the multipurpose aircraft. The front wings are located on the side, close to the nose, of the base, the rear wings are located on the side, close to the tail, of the base, and the main wings are located between the front wings and the rear wings. The multipurpose aircraft can achieve short-distance take-off and landing and vertical take-off and landing, and is high in cruising speed and good in economical efficiency.

The embodiment of the invention discloses a lens assembly and a lighting device. The lens assembly comprises a first lens module which comprises a plurality of first lens groups, and a second lens module which comprises a plurality of second lens groups, wherein the first lens module and the second lens module are symmetrically arranged in parallel. The lens assembly limits the relative positions of the first lens module and the second lens module through a combination which is coplanar and forms an included angle so that light spots of the first lens group and light spots of the second lens group can be projected in different directions. The application of a unilaterally mounted lamp in a central lamp distribution scene and the universality and conversion of the lamp in different lamp distribution modes are realized, and the utilization rate of the lens assembly is improved.

The invention discloses an MOS structure trench diode device and a manufacturing method thereof. The MOS structure trench diode device comprises a silicon substrate and an epitaxial layer which are sequentially arranged from bottom to top, wherein a primitive cell trench, a primitive cell large trench, an extension trench and a cut-off trench which are sequentially arranged are formed in the epitaxial layer; the inner side walls of the primitive cell trench, the primitive cell large trench, the extension trench and the cut-off trench are sequentially provided with a silicon dioxide outer layerand a polycrystalline silicon filling layer; a gate oxide layer is arranged in an area between two adjacent primitive cell grooves on the epitaxial layer, and a polycrystalline silicon layer is arranged above the gate oxide layer; first doped regions and second doped regions are arranged on the left sides and the right sides of the tops of the primitive cell groove, the primitive cell large groove, the extension groove and the cut-off groove; third doped regions are arranged on the left side and the right side of the top of the primitive cell groove and the side, close to the primitive cell groove, of the primitive cell large groove. The device also includes a first metal layer and a second metal layer arranged on the left side and the right side. By introducing the voltage division and electric field shielding effects of the trench MOS, the performance of the device is improved, and the application field is broadened.