182results about How to "Simplified assembly steps" patented technology

The utility model discloses a mahjong machine with arc-shaped tile feeding and a tile pushing mechanism thereof, the tile pushing mechanism comprises a tile pushing rod, a tile pushing disc and a driving assembly, the tail end of the tile pushing rod is movably connected with a hinge point, a tile pushing groove is formed in the middle of the tile pushing rod, and the head end of the tile pushing rod is used for pushing tiles; a tile pushing bearing is arranged on the top end face of the tile pushing disc and extends into the tile pushing groove to drive the tile pushing rod to swing around the hinge point in a reciprocating mode. The driving assembly is used for driving the tile pushing disc to rotate. When the tile pushing disc rotates, the tile pushing bearing can rotate with the center of the tile pushing disc as the center axis, and due to the fact that the tile pushing bearing is located in the tile pushing groove, rotation of the tile pushing bearing can drive the tile pushing rod to swing in a reciprocating mode, and then the tile pushing action is carried out. The tile pushing mechanism with a novel structure is provided for the mahjong machine. Due to the fact that the tail end of the tile pushing rod is fixed through the hinge point, when force is applied to the middle of the tile pushing rod, the tile pushing bearing can endow the head end of the tile pushing rod with a large swing amplitude with a small rotating radius, and labor is saved.

The water dispenser comprises a hot tank assembly and a water inlet and outlet waterway board, the hot tank assembly is provided with a heating cavity, a water inlet connector and a first water outlet connector, the water inlet connector and the first water outlet connector are communicated with the heating cavity, a heating piece is arranged in the heating cavity, and the hot tank assembly is connected to the water inlet and outlet waterway board and located below the water inlet and outlet waterway board. A water distribution pool is formed on the upper surface of the water inlet and outlet waterway board, a water supply runner and a water outlet runner are formed in the water inlet and outlet waterway board, a water supply connector and a second water outlet connector are arranged on the water inlet and outlet waterway board, the water supply connector is communicated with the water distribution pool through the water supply runner and connected with the water inlet connector, and the first water outlet connector is connected with the second water outlet connector. According to the water dispenser, the water distribution pool, the water supply flow channel and the water outlet flow channel are all integrated on the water inlet and outlet waterway board, the integration degree of the water inlet and outlet waterway board can be improved so that the number of parts of the water dispenser can be reduced, the assembling steps of the water dispenser can be well simplified, and the assembling efficiency of the water dispenser can be improved.

The utility model discloses a floating shaver head and belongs to the technical field of electric shavers, the floating shaver head comprises a head cover and a shaver net seat, a plurality of mounting holes are formed in the shaver net seat, a shaver net is mounted in the mounting holes and clamped and fixed in the mounting holes through fixing rings, the shaver net seat is mounted on the head cover, and the shaver net seat is mounted on the head cover. The knife net seat moves in a preset stroke relative to the head cover when being stressed, an elastic piece support is installed in the center of the inner top face of the head cover, a plurality of supporting feet extend out of the elastic piece support to be in contact connection with the lower bottom face of the knife net seat, and the supporting feet are arranged between every two adjacent installation holes. The purpose of floating the knife net seat is achieved through the floating elastic piece and the supporting point on the head cover, assembling steps are simplified, and manufacturing cost is reduced.

The invention discloses a preparation method of a self-supporting carbon nanofiber loaded high-spinning Fe monatomic catalyst and application of the self-supporting carbon nanofiber loaded high-spinning Fe monatomic catalyst in a flexible zinc air battery, and the self-supporting carbon nanofiber loaded high-spinning Fe monatomic catalyst (Fe-N4 / NGC-C) is prepared by using an electrostatic spinning technology in combination with a high-temperature pyrolysis strategy; the carbon nanofiber has the advantages of high length-width ratio, large specific surface area, strong stability and the like, can realize uniform distribution of metal Fe monatomic, and inhibits aggregation of electrocatalytic active sites in the carbonization process. According to the preparation method, the atom utilization rate and the conductivity can be improved, and low load and high catalytic performance are realized.

The embodiment of the utility model discloses a cutting and shaping machine, which relates to the field of battery assembly and production, and comprises a cutting mechanism which comprises an upper cutter, a lower cutter, a guide rail and a first vertical plate; the guide rail is arranged on the first vertical plate, the upper cutter is connected with the guide rail, and the lower cutter is arranged below the upper cutter; the shaping mechanism comprises an upper shaping block, a lower shaping block, a guide column and a second vertical plate; the guide pillar is respectively connected with the upper shaping block and the second vertical plate, and the lower shaping block is arranged below the upper shaping block; the lower cutter, the first vertical plate, the lower shaping block and the second vertical plate are respectively connected with the base. The effects of simplifying the cutting and shaping steps and improving the production efficiency and the yield are achieved.

An optimized damping opening and closing structure of a furniture hinge comprises a hinge cup and a connecting arm that are hinged to each other for opening and closing through a hinge arm assembly, wherein the hinge arm assembly comprises at least an inner hinge arm, which is hinged to the hinge cup and the connecting arm respectively, and an action portion is extended thereon; a damper is arranged on the connecting arm, and the damper comprises at least a cylinder body, and a groove portion is arranged on the cylinder body; when the hinge cup is hinged to open and close relative to the connecting arm, the inner hinge arm acts on the groove portion of the cylinder body through the action portion, and the cylinder body resets and slides and / or compresses and slides on the connecting arm through the interaction between the groove portion and the action portion, so as to realize automatic reset of the damper and / or damping closing of the furniture hinge. The present invention has the characteristics of simple and reasonable structure, reliable performance, high flexibility of use, low manufacturing cost, long service life, easy production, easy realization, exquisite appearance and high safety, and strong practicality through the improvement of the above structure.

The utility model discloses a sensor and a vehicle, and the sensor comprises a housing which is provided with a first positioning part; the pressure sensing assembly comprises a supporting piece, the supporting piece is arranged on the shell, and the supporting piece is provided with a second positioning part; and the connecting piece is provided with a third positioning part, the third positioning part is in positioning fit with the first positioning part, and the third positioning part is in positioning fit with the second positioning part. The third positioning part is arranged on the connecting piece, and the third positioning part is matched with the second positioning part on the supporting piece and the first positioning part on the shell at the same time, so that the buckling degree between the connecting piece and the supporting piece as well as between the connecting piece and the shell can be improved, the connection between the connecting piece and the supporting piece as well as between the connecting piece and the shell is more accurate and stable, and the assembly precision of the sensor is improved; and the assembly steps can be simplified.

The invention discloses a bus duct structure and an assembly method thereof, and the bus duct structure comprises a housing which is provided with at least one installation groove. The insulating layer is attached to and covers the inner surface of the mounting groove; the insulating layer is arranged in the mounting groove, the groove opening of the mounting groove can allow the connecting row to enter or exit from the mounting groove along the depth direction of the mounting groove, the connecting row is embedded in the mounting groove through the groove opening of the mounting groove, and the connecting row is in contact with the insulating layer in an attached manner. According to the bus duct structure and the assembly method thereof provided by the invention, the assembly steps can be effectively simplified, and the temperature rise can be reduced.

An integrated short-beard razor, razor head, and razor include a short-beard razor base, an outer short-beard blade, an inner short-beard blade, and an inner short-beard blade holder. The short-beard razor base includes two opposing end plates and two opposing side plates. The end plates and side plates are connected in one piece to form a frame-like structure with an upper port and a lower port. A limiting member, at least integrally formed with the side plates, is formed between the two opposing end faces of the side plates to block the lower port. By providing a limiting member between the lower ports of the short-beard razor base to support the inner short-beard blade holder, the inner short-beard blade holder can be positioned and supported during installation, eliminating the need for external tools to be inserted into the razor for support. This simplifies the assembly process and improves assembly efficiency. Furthermore, the limiting member and the short-beard razor base are integrally formed, which not only enhances the overall stability but also further simplifies the manufacturing process.

The utility model discloses a kind of connecting structure for tarpaulin and car roof tent frame, including fixed seat being arranged on upper and lower framework and connecting piece being arranged on tarpaulin, fixed seat is provided with clamping groove, connecting piece includes first connecting part and second connecting part, second connecting part is fixed with tarpaulin, and first connecting part is fixed with the clamping groove. The utility model adopts plug-in structure, and simplifies assembly step. First connecting part is provided with reverse buckling structure, cooperate with the clamping edge of the clamping groove, and play the connecting structure of reverse fixed with the insertion in sequence. Connecting piece adopts rubber structure, tarpaulin is disassembled with fixed seat when being convenient for replacing tarpaulin in later period. Two pieces are arranged at second connecting part interval, and tarpaulin is arranged between two second connecting parts, and the connecting strength of tarpaulin and connecting piece is improved. Setting fender, and make fender and fixed seat side wall close, play dustproof waterproof effect.

The utility model discloses a kind of two-stage planetary reduction module suitable for frameless motor, belong to robot movement field, to solve the problem of poor integration when existing frameless motor adapts reduction module, insufficient reduction capacity.The module includes motor, two-stage planetary reduction mechanism, motor shell, shell end cover and output flange;Motor contains coaxially arranged stator winding and motor rotor, and motor rotor is ladder shaft structure;Two-stage planetary reduction mechanism is composed of primary reduction unit and secondary reduction unit, primary sun gear is connected with motor rotor by first sun shaft, secondary sun gear is connected with primary planetary gear by first planet carrier, and output flange is connected with second planet shaft, and first gear ring is arranged on the inner wall of motor shell.The utility model does not need transition component, and integration is high, two-stage reduction can realize high transmission ratio, and transmission precision is high, support is stable, effectively improve equipment load capacity and operating reliability.

The clamping assembly for the trachea cannula comprises an elastic seam allowing the trachea cannula to pass through. A vertical gap is reserved between the sliding block and the elastic seaming opening, the lower portion of the sliding block is connected with the elastic seaming opening through the elastic connecting handle, and the included angle of the connecting position of the elastic connecting handle and the elastic seaming opening is an acute angle; the face, opposite to the fixing frame body, of the elastic connecting handle is concaved inwards to form a damping groove used for elastic damping. The positioning assembly is integrally connected with the elastic connecting handle, and the positioning assembly is detachably connected with a trachea cannula. The damping groove plays an elastic damping role in the positioning or loosening operation of the trachea cannula, and effectively prevents impact on the fixing frame main body and fatigue damage of each component caused by excessive force in the operation.

This utility model relates to a mating structure for quick installation of a slide rail onto a vehicle body. The utility model includes a vehicle body floor plate with threaded holes; a connector including a connecting end and a clamping end, the connecting end having a threaded structure adapted to threadedly connect with the threaded holes; and a slide rail with multiple mounting holes along its length, each mounting hole having a first hole segment and a second hole segment distributed along the length of the slide rail, the first hole segment and the second hole segment being connected; wherein, the clamping end can extend from the first hole segment, and after the slide rail slides relative to the vehicle body floor plate along its length, the second hole segment is located above the clamping end. By tightening the connector, the clamping end can apply pressure to the slide rail, thereby clamping the slide rail. This utility model saves assembly time and speeds up the vehicle body assembly cycle.

The utility model discloses a kind of food crushers, including body, crushing bin and inlet-outlet structure, further include: turntable, set in crushing bin;Knife groove, the inside of the turntable is formed with knife groove and penetrates;Knife disc, by joint structure installation in knife groove.In the present application, first, double-end joint structure of axial and circumferential limit is used between knife disc and bracket, and unlocking is completed by exposed handle, without any auxiliary tool, knife disc replacement or cleaning can be completed, to reach the purpose of convenient cleaning, second, oval knife disc with its long axis periodicity sweeps feed inlet, forms shear and shielding alternation, to improve crushing efficiency and fluency, finally, lock point is hidden in the narrowest tail end of knife disc and extends to center opposite side, make joint structure completely avoid shear area, while completing axial close and circumferential positioning when knife disc is pushed into shaft sleeve, both can realize the full use of crushing space, and can simplify the number of parts and assembly step.

The three-in-one automobile socket connector comprises a substrate, a power socket connector is arranged in the middle of the substrate, a CAN socket connector and a sensor socket connector are arranged on the two sides of the substrate respectively, a first clamping groove set, a second clamping groove set and a third clamping groove set are arranged on the back face of the substrate, a contact pin of the CAN socket connector is embedded in the first clamping groove set, and a contact pin of the sensor socket connector is embedded in the third clamping groove set. A contact pin of the power socket connector is embedded in the second clamping groove group, a contact pin of the sensor socket connector is embedded in the third clamping groove group, and a contact pin of the CAN socket connector, the contact pin of the power socket connector and the contact pin of the sensor socket connector are all vertically downward and exposed below the substrate; and the substrate, the shell of the power socket connector, the shell of the CAN socket connector and the shell of the sensor socket connector are integrally formed by injection molding. The occupied space can be reduced, and the integration level is improved; during assembly, only corresponding pins need to be assembled, so that the assembly steps are simplified, the assembly efficiency is improved, the process cost is reduced, and the product stability is improved.

The utility model discloses a wing mounting structure of a model plane and the model plane, and relates to the technical field of model planes, the wing mounting structure of the model plane comprises a plane body, and a plurality of protruding positioning blocks and positioning columns are arranged on the two sides of the plane body; the wings are detachably installed on the two sides of the fuselage, positioning grooves and positioning holes are formed in the end faces, close to the fuselage, of the wings, the positioning grooves and the positioning blocks are in one-to-one insertion fit, the positioning holes and the positioning columns are in one-to-one insertion fit, a rotary key is arranged on one side of each positioning groove and located above the corresponding positioning block, and clamping holes are further formed in the ends, away from the fuselage, of the positioning blocks. A protruding clamping pin is arranged at one end of the rotating key, and the clamping pin is inserted into the clamping hole and used for fixing the fuselage and the wings. The assembly steps can be simplified, and meanwhile the firmness degree of connection between the fuselage and the wings can be ensured.

The utility model discloses a novel encoder, which comprises an encoder moving disc and an encoder static disc provided with a PCB (printed circuit board), the encoder static disc is provided with a reading head electrically connected with the PCB, the encoder static disc is provided with a central through hole A, and the aperture of the central through hole A is larger than the diameter of a motor shaft. The encoder static disc is installed at the tail end of the motor shell in the using state, the encoder movable disc is installed at the tail end of the motor shaft in the using state, a gap is reserved between the encoder static disc and the encoder movable disc, and the reading head is used for detecting rotation information of the encoder movable disc. According to the utility model, the encoder static disc is directly installed at the tail part of the motor shell, no extra support for installing the encoder static disc is needed, and the encoder static disc is located between the encoder dynamic disc and the motor, thereby reducing the occupied space of the encoder, reducing the length of the motor on the whole, reducing the occupied space when the servo motor is used, and improving the service life of the servo motor. And meanwhile, an encoder static disc bracket is not arranged, so that the cost of the encoder is reduced.

The water dispenser convenient to assemble comprises a dispenser body, the dispenser body comprises a shell with a mounting cavity, the mounting cavity is provided with a front side opening, the dispenser body further comprises a front cover used for sealing the front side opening, and a surrounding edge protruding in the direction away from the front cover is arranged on the circumferential edge of the front cover; the shell is provided with a guide part, the surrounding edge is in guide fit with the guide part to pre-position the front cover, and a buckle structure for fixing the front cover and the shell is further arranged between the front cover and the shell. When the front cover and the shell are assembled, pre-positioning of the front cover can be realized through matching of the surrounding edge and the guide part, on the basis, the front cover and the shell are fixed, so that the assembling difficulty is reduced, the assembling efficiency is improved, and the front cover can be prevented from deviating from the mounting position in the mounting process through pre-positioning of the front cover; the front cover and the shell are fixed, favorable conditions are provided for fixing the front cover and the shell, the requirement for operators is low, the front cover and the shell are fixed in a buckled mode, operation is easy, and efficiency is high.

The utility model relates to lithium battery technical field discloses a kind of battery cell support assembly and battery pack, the utility model's battery cell support assembly, including first support;Second support, and first support between formation has the accommodation area for accommodating and fixed cell;And buckle structure, including buckle, buckle is located on second support, first support is equipped with buckling hole, buckle is pressed into buckling hole, second support is connected with first support by buckle and is buckled;The utility model of battery pack, including multiple above-mentioned battery cell support assembly, multiple battery cell support assembly stacking, multiple battery cell support assembly between being provided with connecting structure.The utility model plays the technical effect of replacing traditional screw lock, improves the technical effect of the convenience of battery cell support assembly and disassembly operation.

The utility model discloses an electronic cigarette convenient to assemble, which comprises a shell, an oil cup is sleeved in the shell, a connecting pipe is sleeved in the oil cup, a non-woven fabric sleeve is sleeved in the connecting pipe, a heating core is sleeved in the non-woven fabric sleeve, a pin is fixedly connected onto the heating core, an electrode silica gel seat is arranged at the bottom end of the oil cup, and a mounting hole is arranged on the electrode silica gel seat. Electrode columns are inserted into the mounting holes, and the pins are extruded and fixed in the mounting holes through the electrode columns; one end of the electrode column is provided with a first flange, and the other end is provided with a second flange; the oil cup is sleeved with a cigarette holder, a first silica gel base is sleeved with the cigarette holder, and one end of the connecting pipe is inserted into the first silica gel base; according to the utility model, the electrode silica gel seat is matched with the electrode column to extrude and fix the pin of the heating core, so that the design of positive and negative electrode conduction is realized, the assembly steps of the electronic cigarette are simplified, the production efficiency is improved, and the production cost of the electronic cigarette is reduced.

The utility model discloses an electric connector and an electric connector combination, the electric connector combination comprises an electric connector and a butt joint connector which are mutually plugged, the electric connector is welded on a circuit board, the electric connector comprises an insulation shell and a conductive terminal group arranged in the insulation shell, the conductive terminal group is provided with a plurality of contact parts and a plurality of welding parts, and the butt joint connector is connected with the insulation shell. The butt joint part and the balance weight part are integrally formed on the insulation shell in an injection molding mode, the butt joint part forwards extends out of the circuit board, the balance weight part formed in an injection molding mode is arranged on the circuit board to balance weight, the technology is simple, the manufacturing cost is low, the multiple contact parts are located in the butt joint part, the hollowed-out part is arranged between the butt joint part and the balance weight part, and therefore the butt joint part and the balance weight part are fully separated. Therefore, the injection molding quality of the butt joint part is ensured, shrinkage and displacement of the plurality of contact parts in the butt joint part due to injection molding of the counterweight part are avoided, and the yield of the electric connector and the electric connector combination is ensured.

This utility model discloses an integrated magnetic core inductor, including a magnetic core body with a receiving cavity; at least one intermediate magnetic core disposed on the inner side wall of the receiving cavity; the magnetic core body and the intermediate magnetic core are integrally formed, and there are gaps between the intermediate magnetic core and the adjacent and opposite side walls of the receiving cavity where the intermediate magnetic core is disposed; the lower end of the intermediate magnetic core is connected to the bottom of the receiving cavity; and terminals are inserted into the receiving cavity. The integral formation of the magnetic core body and the intermediate magnetic core in this utility model fixes the position of the intermediate magnetic core relative to the magnetic core body. During assembly, only the terminals need to be inserted into the receiving cavity to complete the installation. The assembly steps are simple, and during mass production, the intermediate magnetic core will not be misaligned during assembly, effectively avoiding problems such as large deviations in inductance and saturation characteristics, non-concentrated characteristics, and poor process capability (CPK) in mass-produced products.

The application discloses a hinge assembly for glasses and glasses, and relates to the technical field of wearable devices. The hinge assembly comprises: a first fixing member, which is rotationally connected with a rotating member through a first rotating shaft; a second fixing member, which is rotationally connected with the rotating member through a second rotating shaft, and the first rotating shaft and the second rotating shaft are arranged in different axes; and a torsional spring, which is arranged between the first fixing member and the rotating member, and is used for providing an acting force opposite to the rotating direction of the rotating member for the first fixing member when the rotating member rotates around the first fixing member and the torsional spring is forced to twist. In the glasses provided by the application, the temple of the glasses is used for being hingedly connected to the frame through the hinge assembly, and the use of the hinge assembly can provide a relatively stable clamping force in the process of changing the glasses from an open state to an outward expansion, so that the glasses can be adapted to the use of users with different head circumferences, and the use experience of the users is improved.

The utility model discloses a light module with pull ring structure, and the pull ring structure is movably arranged on the shell along the length direction of the shell, comprising the long arm of setting in the width direction of the shell on both sides, and the connecting portion that links to two groups long arms, the first combination position that is away from long arm is equipped with on the connecting portion to at least one group long arm, and the first elastic arm is formed with on the connecting portion from the first combination position to the direction of approaching long arm, the second elastic arm is formed with from the end of first elastic arm to the height direction of the shell one side bending extension, the stop portion is formed with from the end of second elastic arm to the opposite inner side of two groups long arms bending extension, and the stop groove is equipped with on the outer wall of the shell to the stop portion, and the end of stop portion stretches into the stop groove. The utility model can realize the reset after the movement of pull ring structure, and need not use spring, simplifies the assembly step of overall structure, saves time and labour, and the assembly efficiency of light module is high, and effectively satisfies the assembly demand of light module.

The utility model relates to the technical field of cloud sound box terminal equipment, and provides cloud sound box terminal equipment, which comprises a circuit board and a metal dome arranged on the circuit board, and further comprises a key panel positioned above the circuit board, the key panel extends towards the direction of the circuit board to form a plurality of sections of cantilever beams, and the cantilever beams are arranged on the circuit board. A gap is formed between every two adjacent cantilever beams, and one ends, far away from the key panel, of the cantilever beams are gathered together to form a first pressing part which can abut against the metal dome. According to the utility model, the pressing part and the key panel are integrated, so that key materials are saved through an integration mode, the whole machine assembly steps are simplified, the layout space of a circuit board is saved, and the whole machine reliability can be ensured while the whole machine materials and the assembly cost are reduced; by adopting the cantilever beam, the pressing force of the key can be close to that of an independent silica gel key, and the PET sheet is additionally arranged at the top of the metal dome attached to the circuit board, so that the hand feeling feedback of the key can be enhanced.

The application discloses a water pan structure and a heat pump swimming pool equipment. The water pan structure comprises a first water pan, at least two limiting pieces and a fixing piece. The first water pan can be used for mounting two finned heat exchangers. Two limiting pieces are arranged on one side of the first water pan, and the two limiting pieces are respectively located at two end corners of the first water pan. The limiting pieces are used for limiting one side of end plates of the finned heat exchangers. The fixing piece is arranged on the other side of the first water pan, and the fixing piece is located on the center line of the first water pan. The fixing piece can be fixed with the other side of the end plates of the two finned heat exchangers. The application cancels the traditional positioning slot design, completely eliminates the condensate leakage channel caused by the slot gap, and can accurately position and fix the finned heat exchanger, thereby improving the assembly efficiency.

The utility model relates to the technical field of optical fiber patch cord, concretely to an optical fiber patch cord pay-off box, the optical fiber patch cord pay-off box includes the main box body and the pay-off seat of detachable assembly on the main box body, the main box body includes the storage box, the storage box is the cavity structure with the open inside hollow in one end, and is provided with a plurality of surrounding into a circle's positioning card hole on the storage box, the pay-off seat includes the wire sleeve of the polyhedral shape, the wire sleeve's outside fixed with a plurality of line bundle carries out the line clamp of location, and the wire sleeve's inside fixed with a plurality of panel, a plurality of panel all are L type shape, and a plurality of panel from below to above respectively penetrate a plurality of positioning card holes and enter the cavity of storage box. The optical fiber patch cord pay-off box when assembling, only need to pass a plurality of panel respectively through a plurality of positioning card holes, can utilize the ear block on a plurality of panel and fix the pay-off seat on the main box body, and the assembling step is very simple, saves time and labour, improves the assembling efficiency.

The utility model belongs to the technical field of food processing devices, and discloses a food processor with a reliable structure, which comprises a cup body, a crushing cutter positioned in the cup body, a cup cover covering the cup body, a shell fixedly sleeved on the outer side of the cup body, and a handle fixed on the shell, the food processor further comprises a magnet arranged on the cup cover and a detection element matched with the magnet to detect whether the cup cover is closed in place or not, the handle comprises a cover plate and a holding part connected with the cover plate into a whole, the cover plate is detachably fixed to the side wall of the shell and vertically extends along the side wall of the shell, and an installation cavity is defined by the cover plate and the shell. The detection element is fixed in the mounting cavity and is connected with a lead; and the lead is accommodated in the mounting cavity. According to the food processor provided by the utility model, the detection element and the lead can be far away from the cup body, so that the heat radiation of the cup body to the detection element is reduced, and the condition of unreliable detection caused by lead softening or damage is prevented.

The utility model discloses a motor rotor and a motor, and belongs to the technical field of motors. The motor rotor comprises a rotor core, a plurality of permanent magnets, a plurality of magnetic barriers and a plurality of first magnetic isolation bridges. Wherein the rotor core is provided with a first arc-shaped mounting groove, a permanent magnet is accommodated in a first sub-groove in the first arc-shaped mounting groove, magnetic barriers are accommodated in a second sub-groove and a third sub-groove, and the magnetic barriers are arranged at the two ends of the permanent magnet, so that the demagnetization resistance of the motor can be enhanced; moreover, two first magnetic isolation bridges can be arranged in each first arc-shaped mounting groove and are used for enhancing the mechanical strength of the motor rotor and reducing the vibration and deformation of the motor rotor during high-speed operation, and meanwhile, the two first magnetic isolation bridges are arranged at the two ends of the permanent magnets, so that the number of the permanent magnets in the motor rotor can be reduced, and the service life of the motor rotor is prolonged. The assembling steps of the motor rotor are simplified, and the breaking failure rate and the installation cost in the assembling process of the permanent magnet are reduced.