60 results about "Finger structure" patented technology

The invention provides a dexterous hand which comprises a palm structure, a plurality of first joint modules and a second joint module, each first joint module comprises a first side swing assembly and a first finger structure, and each first finger structure comprises a plurality of first finger shells and a plurality of first knuckle steering engines arranged in the first finger shells; the first knuckle steering engines drive the first finger shells to rotate in a one-to-one correspondence mode, the second joint module comprises a second side swing assembly and a second finger structure, and the second finger structure comprises a plurality of thumb knuckle shells and a plurality of thumb knuckle steering engines arranged in the thumb knuckle shells. The thumb knuckle steering engines drive the thumb knuckle shells to rotate in a one-to-one correspondence mode. The dexterous hand provided by the invention has more active degrees of freedom, can more accurately simulate the movement of a human hand, and is longer in service life and lower in control difficulty. In addition, the first joint module and the second joint module are both independent modules, so that maintenance and replacement are convenient.

The utility model provides a hand-simulated operation device, and relates to the technical field of manipulators, the hand-simulated operation device comprises a plurality of finger-simulated structures used for grabbing a target object, the finger-simulated structures at least comprise fingertip knuckles, and the tops of the fingertip knuckles are special-shaped curved surfaces; an electronic skin is attached to each fingertip knuckle, the electronic skin is arranged to be of a stretchable and bendable flexible structure, and the electronic skin is configured to be capable of generating interactive perception with the target object when the target object is grabbed; the electronic skin is attached to the fingertip knuckles and at least covers the front faces and the tops of the fingertip knuckles. The defect that in the prior art, when a human hand operation simulating device grabs the target object, perceptual information of the target object is not accurate is overcome.

The invention provides a dexterous finger module and a dexterous hand, the dexterous finger module comprises a finger structure and a finger root base, the finger structure comprises a plurality of knuckle shells and a plurality of knuckle steering engines arranged in the knuckle shells, the knuckle shells are rotationally connected in sequence, and the knuckle shells are rotationally connected with the knuckle steering engines; each knuckle steering engine drives the corresponding knuckle shell to rotate, one knuckle steering engine is a first steering engine for driving the finger structure to rotate relative to the finger root base, the finger structure further comprises a first connecting piece and a first transmission assembly, and the first steering engine is connected with the first transmission assembly; the motion output end of the first transmission assembly is fixedly connected with the first connecting piece. According to the dexterous finger module and the dexterous hand, more active freedom degrees are achieved, the knuckle shell does not need to be driven to rotate in a rope-driven coupling mode, the service life is long, and the control difficulty is low. In addition, the dexterous finger module is an independent module and is convenient to maintain and replace.

The utility model provides a finger structure and a robot. The finger structure comprises: a frame; the first knuckle is hinged to the rack through a first hinge part; the second knuckles are hinged to the first knuckles through second hinge parts; the third knuckles are hinged to the second knuckles through third hinge parts; the driving assembly is arranged on the rack and used for driving the first knuckles to rotate around the first direction or a second direction opposite to the first direction; the first end of the first tendon rope is connected with the rack, and the second end of the first tendon rope sequentially bypasses the first hinge part and the second hinge part in the first direction and the second direction and then is connected with the second knuckle; the first end of the second tendon rope is connected with the second knuckle, and the second end of the second tendon rope is connected with the third knuckle after bypassing the second hinge part and the third hinge part in the first direction and the second direction in sequence; when the driving assembly drives the first knuckles to rotate in the first direction, the first tendon ropes pull the second knuckles to rotate in the first direction, and the second tendon ropes pull the third knuckles to rotate in the first direction.

According to the FPC finger structure of the LCD narrow jaw, a connecting groove is formed in the bottom of a lower frame, and the connecting groove is connected with the FPC finger structure; the FPC finger structure comprises a connecting shell, the connecting shell is in limiting clamping connection with the connecting groove through a plugging assembly, the plugging assembly comprises a limiting insertion cylinder, a limiting insertion rod is arranged in the connecting shell, a clamping rod is arranged between the limiting insertion rod and the inner wall of the connecting shell, a clamping block is arranged at the top of the clamping rod, and the clamping block is matched with the clamping groove in a plugging mode; the tail part of the connecting shell is fixedly connected with a plugging head, and a moving assembly for driving the clamping rod to move is arranged in the plugging head; through the arrangement of the reinforcing sheet and the plugging assembly, the stability of the gold finger in the plugging process can be improved, the fracture resistance of the gold finger is improved, the fracture probability of the gold finger is reduced, and the service life is prolonged; in addition, through the arrangement of the warning module, the golden fingers are not damaged in the plugging and unplugging process, and the service life of the golden fingers is further prolonged.

This invention discloses a robotic hand and robot. The robotic hand includes a palm, multiple fingers, a drive module, and linkages. The robotic hand of this invention has 16 degrees of freedom, suitable for performing high-precision tasks such as precision assembly and micro-manipulation. It can achieve more complex finger postures and grasping actions, adapting to the grasping needs of objects of different shapes and sizes. It provides stable force transmission, facilitating precise force control, and is suitable for operations requiring precise force feedback. It has high mechanical strength and wear resistance, a relatively simple structure, reduces potential failure points, and is suitable for industrial environments with long-term continuous operation. The drive module can be standardized for easy mass production and maintenance. The finger structure is modular, allowing for flexible configuration according to application requirements, reducing manufacturing costs and maintenance difficulty. It can balance high-precision positioning with high-flexibility operation, meeting the stringent requirements of modern industry for efficient and precise operations, and can be applied to various scenarios such as precision assembly and complex logistics sorting.

The invention provides a humanoid dexterous hand and a humanoid robot. The humanoid dexterous hand comprises a palm skeleton, a thumb driving mechanism and a joint mechanism, the palm skeleton comprises a guide rail fixing seat, a skeleton body, a four-finger structure, a thumb and a driving mounting groove; the thumb driving mechanism comprises a side swing driving assembly and a bending driving assembly. One end of the bending driving assembly is embedded into the driving mounting groove, the other end of the bending driving assembly is connected with the joint mechanism through the guide rail fixing seat, and the bending driving assembly is slidably connected with the guide rail fixing seat; and the side swing driving assembly is embedded into the driving mounting groove, is connected with the joint mechanism through the guide rail fixing seat, and is in sliding connection with the guide rail fixing seat. The joint mechanism is controlled through the side swing driving assembly and the bending driving assembly respectively, then the thumb is controlled to move through the joint mechanism, free movement can be conducted in two direction dimensions, and the flexibility of the thumb is greatly improved.

The utility model relates to a connector structure. A finger contact prevention structure of a high-voltage interlocking connector comprises a female end insulating shell, a male end insertion hole is formed in the center of the female end insulating shell, a plurality of female end contact prevention pieces are arranged at the end of the female end insulating shell, finger contact prevention holes are formed in the female end contact prevention pieces, and the female end contact prevention pieces are connected with elastic control pieces. The anti-contact finger hole is smaller than the male end insertion hole under the elastic force effect of the elastic control piece, and the end part of the female end insulation shell is also provided with a guide stop structure which guides and limits the female end anti-contact piece. The utility model provides the finger contact prevention structure of the high-voltage interlocking connector, which is simple in structure, convenient to assemble, practical in dynamic protection mechanism and low in cost; the technical problems that in the prior art, an anti-touch finger structure of a high-voltage interlocking connector is complex, the number of manufacturing process steps is large, and cost is high are solved.

The utility model discloses a finger structure and robot, finger structure includes linear drive assembly, near-end knuckle, middle knuckle, far-end knuckle and flexible rope, linear drive assembly includes motor, worm and worm gear that connect in proper order, near-end knuckle, middle knuckle and far-end knuckle are rotatingly connected in proper order, and the flexible rope is connected in proper order to drive the near-end knuckle, middle knuckle and far-end knuckle. One end of the flexible rope is wound on the worm gear, the other end of the flexible rope is connected to the far-end knuckles, and the motor, the worm and the worm gear sequentially drive the flexible rope to be stretched or loosened so as to drive the far-end knuckles and the middle knuckles to be bent or straightened. By the adoption of the design mode, due to the flexibility characteristic of the flexible rope, the state of the fingers can be adjusted in a self-adaptive mode in the buckling and stretching process, and therefore the flexible self-adaptive grabbing function is achieved, and objects of different shapes and sizes can be flexibly coped with. In addition, due to the fact that the worm gear and the worm have the self-locking characteristic, the finger has the large load capacity.

A semiconductor memory device includes: a stacked structure including first layers including conductive layers disposed in a first and a third regions and insulating layers disposed in a second region, first to third insulating members extending in a stacking direction, semiconductor layers disposed in the first and the third regions, and a contact electrode disposed in the second region. The first and the third insulating members extend across the first to third regions and the second insulating member extends across the first and the third regions. The second insulating member contacts the insulating layers. The first layers extend in a direction in the second region from a side of the first insulating member to a side of the third insulating member. The conductive layers in the first and the third regions are mutually connected via conductive layers in the second region.

The application provides a kind of integrated circuit layout detection method, device and storage medium;Method includes: in layout, determine multi-finger structure, wherein multi-finger structure includes: at least one upper continuous source-drain and at least one upper continuous via, upper continuous source-drain is electrically connected with upper layer metal line by upper continuous via;The number of upper continuous source-drain and the number of upper continuous via are calculated;For multi-finger structure, if the number of its upper continuous source-drain is greater than the number of its upper continuous via, then determine that the multi-finger structure is unqualified multi-finger structure.The application can find design defects in time, thereby improving the yield of chip.

This application provides a finger structure, a dexterous hand, and a robot, relating to the field of robotics. The finger structure, applied to a dexterous hand, includes a middle segment, a root segment and a fingertip segment rotatably connected to both ends of the middle segment, and the root segment is also rotatably connected to the palm. The finger structure further includes: a first buffer layer disposed between the fingertip segment and the middle segment; a second buffer layer disposed between the root segment and the middle segment; and a third buffer layer disposed between the root segment and the palm.

The application discloses a high-speed flexible board connecting assembly, which comprises a flexible printed board, a standard SMA connector arranged at one end of the flexible printed board and used for connecting a vector network analyzer, and a gold finger structure arranged at the other end of the flexible printed board and used for being plugged into a standard VPX socket; the gold finger structure comprises a plurality of gold fingers, and the gold fingers are connected with the corresponding standard SMA connectors through the flexible printed board. Compared with the prior art, the high-speed flexible connecting assembly has the advantages of high speed (20 Gbps), low loss, low cost and good quality consistency, and can be flexibly used for building a VPX architecture test link.

The invention discloses a bionic finger structure picking robot for a spindle-shaped fruit tree and a picking method, and belongs to the technical field of intelligent hardware. A moving assembly in the picking robot is used for bearing all assemblies of the picking robot to move in an orchard and move to the periphery of a target fruit tree; the laser radar and the first camera acquire fruit tree planting position information, a park layout image and an obstacle image; the control assembly is used for performing picking path navigation and fruit tree modeling of the moving assembly according to the fruit tree planting position information, the park layout image and the obstacle image; determining position information of a to-be-picked target according to a target fruit tree image acquired by a second camera; a picking path is planned; the control assembly controls the mechanical arm to move to a picking path starting point position and starts a third camera to collect evaluation attitude information; and adjusting the picking posture of an end effector of the picking assembly according to the posture information for picking. According to the scheme provided by the embodiment of the invention, the fruit picking efficiency and precision can be improved.

The invention provides a finger structure. The finger structure comprises a finger root part; the finger part is rotatably connected to the finger root part through a first joint part, and the finger part rotates around a first direction and a second direction relative to the finger root part; the two first tendon ropes extend in the third direction and are symmetrically arranged on the two sides of the finger structure in the first direction, the end, close to the finger root part, of each first tendon rope is connected with a first driving piece, and the end, away from the finger root part, of each first tendon rope is connected to the finger part; one end, in the third direction, of the reset tendon rope is connected to one end, far away from the finger part, of the finger root part, and the other end, in the third direction, of the reset tendon rope is connected to one end, far away from the finger root part, of the finger part; the first tendon rope and the reset tendon rope are arranged on the front face and the back face of the finger structure respectively, and the front face and the back face of the finger structure are oppositely arranged in the second direction. The size of the finger structure is reduced, and the action precision and the use reliability of the finger structure are improved.

The utility model is suitable for the field of electronic components, and provides a micro heat source structure, an insertion finger structure, an atomization core and an electronic device.The micro heat source structure comprises a substrate, and the substrate is provided with a first surface; an impedance body disposed on the first surface; and the heat conduction layer is arranged on the first surface and is connected with the impedance body. The heat conduction layer is connected with the impedance body, so that heat generated by the impedance body can be rapidly conducted to the heat conduction layer and then conducted to a position needing to be heated through the heat conduction layer, the heat conduction efficiency is improved, and the product function is guaranteed.

The application provides a rigid-flexible coupling underactuated finger with integrated compliance-sensing function, comprising a rack, the rack is connected with a plurality of flexing phalanx links through a rotating pair, further comprising an elastic plate arranged side by side with the phalanx links, the elastic plate is a continuous elastic plate, and a plurality of flexible strain sensors are distributed on the elastic plate. The rigid-flexible coupling underactuated finger with integrated compliance-sensing function adopts a planar closed-loop link mechanism form composed of rigid and elastic two branches, wherein the elastic branch is composed of the elastic plate, the rigid branch is composed of the phalanx links, the flexible elastic plate is driven by a driver to drive the rigid phalanx links to complete the flexing action, underactuation is realized to improve the compactness of the finger structure, the elastic plate provides passive compliance for the rigid phalanx links, and the strain sensor provides contact force sensing capability for the finger by measuring the deformation of the elastic plate.

The dexterous hand finger structure comprises a driving assembly, a connecting rod assembly and a finger assembly, the driving assembly is connected with the finger assembly, the connecting rod assembly is located in a containing space formed by the finger assembly, and the connecting rod assembly comprises a first connecting rod and a second connecting rod; the finger assembly comprises knuckles and a rotating assembly, the knuckles comprise a first knuckle, a second knuckle and a third knuckle, and the rotating assembly comprises a first rotating center and a second rotating center; the first knuckles are connected with the driving assembly in a nested mode, and the second knuckles are located between the first knuckles and the third knuckles. The first knuckles and the second knuckles rotate around a first rotating center, and the second knuckles and the third knuckles rotate around a second rotating center; the first connecting rod is connected with the driving assembly and the second knuckle; the second connecting rod is connected with the first knuckle, the second knuckle and the third knuckle; compared with the prior art, the flexibility of the fingers is greatly enhanced, the transmission efficiency is higher, the size of the fingers of the dexterous hand is reduced, and improvement of the overall compactness and miniaturization of the bionic hand is facilitated.

The application belongs to the technical field of bionic robots, and particularly relates to a bionic finger structure. The technical scheme is as follows: a bionic finger structure comprises a proximal phalanx, one end of the proximal phalanx is rotationally connected with a middle phalanx, the other end of the middle phalanx is rotationally connected with a distal phalanx, the lower side of the distal phalanx is connected with a distal phalanx steel rope, a middle phalanx pulley is sleeved on the rotation shaft between the middle phalanx and the proximal phalanx, the other end of the distal phalanx steel rope is connected with the proximal phalanx after winding around the upper side of the middle phalanx pulley, and the lower side of the middle phalanx is connected with a middle phalanx steel rope; the end of the proximal phalanx away from the middle phalanx is rotationally connected with a finger cross, the two sides of the finger cross are respectively rotationally connected with a proximal phalanx left pulley and a proximal phalanx right pulley, a cross steel rope is fixed on the proximal phalanx, one section of the cross steel rope is connected with the proximal phalanx left pulley and then wound out from the proximal phalanx left pulley, and the other section of the cross steel rope is connected with the proximal phalanx right pulley and then wound out from the proximal phalanx right pulley. The application provides a bionic finger structure.

This application discloses a finger, relating to the field of robotics. One side of the drive assembly along a first direction is the working side for placing the object to be picked up. Both ends of the drive assembly along a second direction are provided with first output shafts. A first phalanx on one end of the first output shaft has a rotation center around the corresponding first output shaft, which is called the first rotation center. A second phalanx on the other end of the first output shaft has a rotation center around the corresponding first output shaft, which is called the second rotation center. The first rotation center is located on the side of the second rotation center along the first direction opposite to the working side. The second output shaft of the drive assembly is located on the second phalanx. Because the first rotation center is located on the side of the second rotation center along the first direction opposite to the working side, and the second rotation center is close to the working side, the rotation radius of the drive assembly within the second phalanx is relatively short. This reduces interference between the drive assembly and the drive assembly, saves clearance space within the second phalanx, and makes the finger structure more compact.

The utility model relates to the technical field of power distribution systems, and discloses a quick connecting device for an inner cone insulator and electric power maintenance equipment, a first clamping arm and a second clamping arm in a clamping arm assembly rotate relatively by taking a shaft pin as a shaft, and the top ends are respectively and additionally provided with a contact finger structure, so that the contact reliability of the inner wall of the inner cone insulator is improved; the insulating handle is fixed at the bottom end of the first clamping arm, so that handheld safety is guaranteed; the adjusting rod is fixed to the bottom end of the second clamping arm and movably connected with the bottom end of the first clamping arm, the adjusting driving piece is adjusted to drive the adjusting rod to move to change the distance between the bottom ends of the two arms, the opening and closing state is converted, and the first contact finger and the second contact finger are evenly expanded. The device is suitable for inner cone insulators of various specifications, is high in universality, saves the maintenance cost, and is higher in maintenance normalization and efficiency. Power maintenance equipment applying the device can be quickly constructed and maintained, and two ends of the connecting wire are respectively connected to the adjusting rod and the maintenance end, so that the connecting wire is led out from the inner cone insulator, and the requirements of loop grounding, resistance measurement wiring and the like are met.

The utility model discloses a six-core fork type connector, which comprises a pair of connecting plates, a separator, a plurality of fixing parts and a plurality of contact finger structures, and is characterized in that the pair of connecting plates are arranged in parallel, and the separator is arranged between the pair of connecting plates; the separators divide the space between the pair of connecting plates into a plurality of cavities, and the plurality of contact finger structures are respectively arranged in the plurality of cavities; the fixing piece vertically and fixedly connects the pair of connecting plates and the separator, and the same sides of the pair of connecting plates and the contact finger structure are respectively provided with a plurality of mounting holes. According to the utility model, the space between the pair of connecting plates is divided into a plurality of cavities by the separators, and each cavity is internally provided with a contact finger structure; the pair of connecting plates and the partition piece are vertically and fixedly connected through the fixing piece, the firmness and safety of connection are enhanced, the clamping force is kept, and the large contact area is guaranteed.

This invention relates to the field of robotics and proposes a rigid-flexible coupling robotic mechanical finger structure, including a fixed plate and two sets of gripping fingers. Each gripping finger comprises a first phalanx, a second phalanx, and a fingertip that rotate sequentially from end to end. The first phalanx is rotatably mounted on the fixed plate. The structure also includes a gripping airbag, a drive mechanism, and a gripping mechanism. The gripping airbag is fixedly mounted on the end of the fingertip, and an air pump is installed inside the fingertip. The gripping airbag is connected to an inflation valve and a deflation valve, which are used to inflate the airbag. Four drive mechanisms are provided, each driving two first phalanxes and two second phalanxes to rotate. The gripping mechanism drives the fingertip to rotate in order to grip objects. This technical solution addresses the problem in existing technologies where the excessive gripping force of mechanical fingers causes damage to some objects.

The utility model discloses a non-invasive finger clip needle roller device, which relates to the field of medical care and human body meridian stimulation equipment, and comprises a finger clip holding component, a needle roller component, a needle roller component, a needle roller component, a needle roller component, a needle roller component, a needle roller component and a needle roller component, and is characterized in that the finger clip holding component is provided with an ergonomic deformation structure conforming to finger structures to improve clamping stability and wearing comfort; the rolling needle assembly is arranged in the clamping area of the finger clamp holding assembly and comprises a rolling wheel part composed of a plurality of needle bodies, the needle bodies are arranged in an array mode along the periphery of a rolling wheel, and the rolling wheel is of a non-planar concave structure in appearance and used for forming multi-point stimulation contact on the surfaces of the fingers and acupuncture points of the fingers in the rolling process; due to the non-planar concave structure, the rolling needles can be attached to physiological fluctuation of the surfaces of fingers during rolling, especially finger joint areas, and more effective acupuncture point stimulation and massage effects are achieved. The groove-shaped structure dynamically adapts to different finger sizes, and self-adaptive clamping is achieved by combining the elastic deformation characteristic of the bent arc transition section; the wearing and sliding operations can be completed by a single person, and complicated adjusting steps are not needed.

The utility model discloses a finger structure and a dexterous hand, and relates to the technical field of dexterous hands, the finger structure comprises a first driving device and a linkage finger, the first driving device comprises a first driving piece and a transmission mechanism which are arranged on a palm part, and the transmission mechanism comprises a first transmission piece and a second transmission piece which are matched with each other; the first transmission part is arranged on an output rotating shaft of the first driving part, and the second transmission part is driven by the first transmission part to rotate around a first axis; the linkage finger comprises a phalanx part and a linkage piece, the phalanx part at least comprises a first phalanx part and a second phalanx part, the first phalanx part is fixedly arranged on the second transmission piece, and the second phalanx part is rotationally connected to the end, away from the first driving device, of the first phalanx part and can be driven by the linkage piece to rotate around a second axis; the first axis and the second axis are arranged in parallel. According to the technical scheme, the overturning range of the finger structure can be enlarged when the finger structure is overturned relative to the palm.

The invention relates to a corrugated pipe structure, a vacuum arc-extinguishing chamber and a high-voltage switch, and the corrugated pipe structure comprises at least two single-stage corrugated pipes and at least one guide structure, and the at least two single-stage corrugated pipes are arranged and are used for telescopically sleeving the periphery of a movable conductive rod; the corrugation numbers of at least part of the single-stage corrugated pipes in all the single-stage corrugated pipes are different; each guiding structure comprises a connecting ring and a plurality of contact finger structures arranged on the inner side of the connecting ring, one connecting ring is connected between every two adjacent single-stage corrugated pipes in a sealed mode, the connecting rings and all the single-stage corrugated pipes are coaxially arranged, and the contact finger structures of the same guiding structure are evenly arranged in the circumferential direction of the corresponding connecting ring at intervals. And one end, deviating from the corresponding connecting ring, of the contact finger structure is used for movably contacting and matching with the outer surface of the movable conducting rod. The corrugated pipe structure can effectively reduce friction work in the switching-on and switching-off operation process through hierarchical design, effectively improve the breaking capacity of the vacuum arc-extinguishing chamber and prolong the service life of the vacuum arc-extinguishing chamber.

The utility model provides a finger structure, a dexterous hand, a mechanical arm and a humanoid robot, and relates to the field of robots, the finger structure comprises a first finger section, a second finger section and a third finger section which are hinged in sequence, and a first tendon rope and a second tendon rope which respectively penetrate into the finger structure in sequence. One end of the first tendon rope is connected to a first check block arranged in the first finger section, an elastic reset piece for being pressed by the first check block is further arranged in the first finger section, and the other end of the first tendon rope is configured to be used for being fixedly connected to a palm part of the humanoid robot. One end of the second tendon rope is connected with the first finger section, the other end of the second tendon rope is configured to be used for being connected with a winch, the fingers can be converted into a bent state from a straightened state through the pulling effect of the second tendon rope, and meanwhile the elastic reset piece is compressed to accumulate elastic potential energy. And the finger structure can be automatically recovered from the bending state to the finger straightening state by virtue of the elastic resetting effect of the elastic resetting piece.

An illumination adjustment apparatus includes a plate, actuators, and finger structures. The actuators include coils disposed on the plate. The finger structures include beryllium alloy material. Ones of the finger structures are coupled to corresponding ones of the actuators via magnets. The finger structures are moved independently using the actuators, are disposed at least partially in a path of a beam of radiation to intercept at least a portion of the beam, and adjust an intensity cross-section of the beam based on the moving and the intercepting.

A contact finger structure comprises a connecting gate plate and is characterized in that the connecting gate plate comprises at least two partition plates which are arranged in parallel at intervals, a connecting block is arranged between the two partition plates in a pivoted mode, a plurality of terminal shafts are arranged at one end of the connecting gate plate, and the two ends of each terminal shaft penetrate through the two partition plates respectively. Heat dissipation grooves are formed in the positions, close to the wiring end shaft, of the two partition plates. When bearing a short-circuit current, the isolation switch can reduce the heating phenomenon of a terminal shaft of the isolation switch without affecting the strength, so as to ensure the reliable operation in the worst environment.

The application provides a multi-finger structure LDMOS model construction method, device and equipment, relates to the electronic circuit simulation technical field, and the method comprises the following steps: constructing a drift region resistance model reflecting the nonlinear influence of the number of finger-shaped units in the multi-finger structure on the drift region resistance; based on the drift region resistance model and the intrinsic metal oxide semiconductor, constructing an LDMOS electrical model reflecting the characteristics of the multi-finger structure; based on the thermal resistance, the heat capacity and the power consumption input source, constructing a non-distributed thermal network for simulating the self-heating effect, and nonlinearly correcting the thermal resistance of the multi-finger structure LDMOS; thermoelectrically coupling the LDMOS electrical model and the non-distributed thermal network to obtain a multi-finger structure LDMOS model including the self-heating effect. By adopting the multi-finger structure LDMOS model construction method, device and equipment, the construction accuracy of the multi-finger structure LDMOS model is improved.