70results about How to "Optimize structure layout" patented technology

The utility model relates to the technical field of breathing machine fans, in particular to a fan volute structure for a breathing machine. The volute structure comprises an outer shell, a driving mechanism and a control part, the outer shell comprises an upper shell body and a lower shell body which are in butt joint, an air inlet is formed in the upper shell body, the upper shell body and the lower shell body are in butt joint, an air outlet is formed in one end of the outer shell body, an air cavity for communicating the air inlet and the air outlet is formed in the outer shell body, and the upper shell body is arranged in a concentric circle; the lower shell is not arranged in a concentric circle; the driving mechanism comprises a motor shell, a driving assembly, a fan blade piece and a first lower end cover, one end of the motor shell penetrates through the lower shell, the driving assembly is located in the motor shell, the rotating shaft is exposed out of the motor shell and connected with the fan blade piece, the fan blade piece is located in the air cavity, and the first lower end cover abuts against the motor shell and is connected with the lower shell; the control piece is contained in the first lower end cover, electrically connected with the driving assembly and externally connected with a power source. Efficient airflow conduction can be achieved, and the noise of the fan can be reduced.

The utility model provides a battery pack air tightness detection tool, which comprises a base and a pressing assembly arranged above the base, an accommodating space for accommodating a battery pack is formed between the base and the pressing assembly, the pressing assembly comprises a support frame arranged on the base in an up-and-down sliding manner, and the support frame is arranged on the base in an up-and-down sliding manner. The supporting frame is arranged on the base, the mounting plates are arranged on the supporting frame and arranged in the length direction of the base at intervals, each mounting plate is in threaded connection with a plurality of screw rods, the screw rods on each mounting plate are arranged in the width direction of the base at intervals, and one end of each screw rod extends into the containing space and can press the top of the battery pack. The battery pack air tightness detection tool is simple in design structure and can adapt to battery packs of different sizes, and a detection tool does not need to be independently designed for each type of battery pack.

The application discloses a C-band tuning-free duplexer and belongs to the technical field of microwave filters. The tuning-free duplexer comprises an upper conductor and a lower conductor, and the upper conductor and the lower conductor are buckled one above the other to form a waveguide cavity. The upper conductor is provided with a combining port in the middle of the top, and the lower conductor is provided with a low-frequency input / output port and a high-frequency input / output port at the bottom. The waveguide cavity from the low-frequency input / output port to the combining port constitutes a low-end filter, and the waveguide cavity from the high-frequency input / output port to the combining port constitutes a high-end filter. The main bodies of the high-end filter and the low-end filter are both a plurality of waveguide resonant cavities arranged along a straight line, the middle positions of each waveguide resonant cavity are provided with cavity loading, and adjacent waveguide resonant cavities are connected through inter-cavity coupling. The tuning-free duplexer adopts a symmetrical structure and a center loading mode, realizes tuning-free assembly, has the characteristics of high power bearing capacity, low transmission loss and excellent signal isolation, and is suitable for a C-band communication system.

The invention relates to the technical field of psychological counseling, in particular to a psychological catharsis device which comprises a main body frame, a supporting base and a control unit, the supporting base is fixedly connected with the main body frame, a functional module is installed on the main body frame, and a quick-release positioning assembly is installed between the functional module and the main body frame; the quick-release positioning assembly comprises a clamping seat and a plurality of elastic clamping heads; the function module comprises a striking module, a shouting reception module and a pouring conduction module, an elastic limiting assembly, a noise reduction assembly and a force adaptation adjusting assembly are installed in the main body frame, and the control unit is electrically connected with the elastic limiting assembly and the force adaptation adjusting assembly. The control unit is used for controlling the buffering strength and stroke limiting of the elastic limiting assembly according to the releasing force signals collected by the force adaptation adjusting assembly. According to the invention, the user is helped to release negative emotions orderly, and the pertinence and effectiveness of psychological counseling are improved.

The utility model relates to a kind of miniature direct-current brushless motor, including shell, and shell is equipped with accommodating cabin;With the motor rear cover and motor front cover of accommodating cabin seal connection;Stator core is equipped in accommodating cabin;With the rotor assembly matched with stator core;PCBA board is equipped in accommodating cabin;Motor rear cover is equipped with electric connection interface, electric connection interface is operatively electrically connected to PCBA board;The center of motor rear cover is equipped with the stator support shaft extending into accommodating cabin, stator core is fixedly sleeved on stator support shaft;Motor front cover is equipped with insert sealing joint part, insert sealing joint part is used to insert into gear box and form sealed connection with gear box;The output end of the motor shaft of rotor assembly extends outward through insert sealing joint part.It replaces traditional motor.The miniature direct-current brushless motor can effectively solve the problems in the prior art through innovative structural design, improve the performance, reliability and service life of motor in smart home device.

The application provides a vehicle heat insulation system, a vehicle with the same and a vehicle heat insulation method. The vehicle heat insulation system comprises a battery box connected with a vehicle body, a battery pack arranged in the battery box, and a battery pack upper cover of the battery box; a vehicle body bottom plate connected with the battery pack upper cover, a sealing element arranged between the vehicle body bottom plate and the battery pack upper cover, at least one liquid storage area formed between the sealing element, the vehicle body bottom plate and the battery pack upper cover, and the liquid storage area used for storing cooling liquid; and a liquid supply system comprising at least a conduit and a liquid storage tank, a first end of the conduit in communication with a liquid outlet pipe of the liquid storage tank, and a second end of the conduit in communication with the liquid storage area through the vehicle body bottom plate, the conduit being used for passing the cooling liquid into the liquid storage area to cool and lower the temperature of the battery pack. The liquid storage area is arranged to cool and lower the temperature of the battery in thermal runaway, to avoid the heat of the power battery after ignition from spreading to the vehicle body, and to solve the technical problem of the vehicle accident caused by the battery ignition in the prior art.

The utility model discloses a foldable fabric box which comprises a box body, an observation window is fixed to the side wall of the box body, supporting rods are symmetrically fixed to the top end and the bottom end of the inner wall of the box body, sleeves are connected to the outer walls of the supporting rods in a sliding mode, polish rods are rotationally connected to the inner sides of the sleeves, and the inner sides of the polish rods on the two sides are rotationally connected. A groove block is fixed to the outer wall of the polished rod, and a fixing piece is arranged in the groove block. Through the sliding fit design of the polished rod, the sleeve and the supporting rod, convenient folding and rapid unfolding of the box body are achieved, when the box body is unfolded, the polished rod drives the supporting rod to open the top end and the bottom end of the box body, a clamping plate is matched for limiting and fixing the rotating shaft of the polished rod, and a top block is matched for clamping and fixing a groove block, so that the box body has reliable structural stability in the using state; deformation or collapse is effectively avoided, the storage requirement is met, storage, carrying and storage are facilitated, and the space utilization rate and use scene adaptability of the product are greatly improved.

This invention discloses a tree planting and hole-digging device for landscaping projects, belonging to the field of landscaping construction technology. The device includes a base with a plant placement slot on one side and a handle fixed to the other side. Universal wheels are installed at the four corners of the lower end of the base, and a support frame is fixed to one side of the upper end. A drive motor is fixed to the other side of the support frame, and a fixed rod is fixed to the drive end of the drive motor. A connecting structure is provided on the fixed rod, and a ground drill bit is mounted on the connecting structure. This tree planting and hole-digging device achieves an adaptive digging effect, automatically adjusting the rotation and downward movement of the drill bit through the mechanical cooperation of centrifugal force and springs. It simplifies the overall machine structure, effectively reduces the production cost and daily operating cost of the planting and hole-digging equipment, and significantly improves the overall economic efficiency of the equipment.

The utility model discloses a frame body structure of a cooling fan, which comprises a fan body, the fan body comprises a fan frame body, a fan device arranged in the fan frame body and a water tank arranged at the lower end of the fan frame body, the fan frame body is respectively provided with an air inlet and an air outlet, and the fan frame body is arranged in a circular shape. The lower end of the fan frame extends to be provided with a connecting part used for being connected with a water tank, the front end and the rear end of the fan frame are provided with an impeller assembly and a dustproof filter plate, an air inlet groove used for arranging the dustproof filter plate is formed in the fan frame along the air inlet, and an air outlet groove used for arranging an impeller is formed in the fan frame along the air outlet. The fan is reasonable in structural design, the fan is tightly and conveniently connected with a water tank through the circular connecting part at the lower end of the fan frame body, water leakage is avoided, the impeller assembly greatly improves impeller rotation stability, noise and collision are reduced, the service life is prolonged, the protective cover is rotationally clamped with the fixing clamping groove through the clamping teeth, installation and disassembly are convenient, and use is convenient. And later maintenance and replacement are facilitated.

This invention belongs to the field of aircraft separation structure design technology, specifically relating to an explosive bolt collection device and its design method suitable for compact axial space. The method includes: Step 1, determining the initial velocity and initial kinetic energy of the explosive bolt remnant; Step 2, selecting buffer structure connecting fasteners based on the initial kinetic energy of the explosive bolt remnant calculated in Step 1; Step 3, designing the collection structure based on the initial kinetic energy of the explosive bolt remnant calculated in Step 1 and the buffer structure connecting fasteners selected in Step 2; Step 4, conducting numerical simulation analysis and ground tests on the bolt collection device designed in Steps 2 and 3 to verify the feasibility of the design method for an explosive bolt collection device suitable for compact axial space. This invention can solve the problems of complex structure, high axial space requirements, and the risk of rebound in explosive bolt collection devices.

The application relates to the technical field of electric suitcases, in particular to a convenient driving device which comprises a base, a first telescopic rod and a second telescopic rod which are telescopically arranged on the base, a handle is arranged on the first telescopic rod, a driving wheel is arranged on the second telescopic rod, a sliding support is arranged on the base, the sliding support comprises a first sliding part and a second sliding part, a first linkage assembly is arranged in the first telescopic rod, the first telescopic rod is slidably arranged in the first sliding part, one end of the first linkage assembly located in the first sliding part can be clamped and connected with the first sliding part, and a main telescopic button is arranged at one end of the first linkage assembly located outside the first sliding part; control parts are further arranged on both sides of the second sliding part of the sliding support, a second linkage assembly is arranged in the control part, and the second telescopic rod is slidably arranged in the second sliding part; and the application further provides an electric suitcase which is suitable for the convenient driving device.

The utility model discloses a light photovoltaic assembly and photovoltaic power generation equipment, and relates to the technical field of photovoltaic assemblies. The light photovoltaic module comprises a battery piece, a flexible welding strip, a conductive plate and a bus bar; a plurality of battery pieces are sequentially arranged along a first direction; the plurality of battery pieces arranged along the first direction form a group, and a plurality of groups of battery pieces are arranged along the second direction; the flexible welding strip is in welding connection with the first electrodes of the battery pieces arranged in the first direction; the current-conducting plate is sequentially connected with the second electrodes of the battery pieces arranged along the first direction in a welding manner; the bus bars are provided with a plurality of sections, each section of bus bar is correspondingly arranged between two adjacent groups of battery pieces, and the bus bars are respectively connected with the adjacent flexible welding strips and the current-conducting plates in a welding manner; according to the light photovoltaic module provided by the utility model, the battery pieces are grouped and connected in parallel, and then each group of battery pieces are connected in series and boosted, so that the circuit connection stability of each battery piece can be effectively ensured, and the overall use reliability of the light photovoltaic module is improved.

This invention discloses a jaw crusher, including a frame assembly, a fixed jaw plate, a movable jaw assembly, a rocker arm assembly, a suspension shaft assembly, and a transmission assembly. The frame assembly includes two side plates arranged opposite each other. This jaw crusher suspends the upper part of the movable jaw assembly to the frame assembly via the suspension shaft assembly, and adjusts the lower part of the movable jaw assembly to a fixed base via the rocker arm assembly. Furthermore, a first connecting assembly and a second connecting assembly on the movable jaw assembly, along with a sliding groove on the fixed base, allow the rocker arm assembly to be adjusted between different connection positions and different adjustment positions. This not only enables fine-tuning of the discharge opening but also allows switching of the discharge opening adjustment range, effectively increasing the adjustment range of the discharge opening and facilitating adjustments according to different material particle sizes and different working conditions.

The application provides a pusher and a refrigerator, which are characterized in that a main containing cavity and an isolation cavity are arranged on both sides of a partition plate, the output end of a pusher motor and the input end of a primary gear are separately contained by the isolation cavity, and the lubricating medium on the primary gear is restricted by the isolation cavity so that it can still be kept in the isolation cavity under the centrifugal force of gear rotation. Through the structural design of the isolation cavity, on the one hand, the concentrated area of the lubricating medium under the centrifugal force can be matched with the meshing position between the motor and the primary gear, so that the primary gear with high speed in the running process of the pusher can always keep the state of being infiltrated by the lubricating medium, the loss of the lubricating medium on the meshing surface is minimized, and the running noise is effectively reduced. In addition, the partition plate can also simultaneously provide the installation and fixation of the secondary gear in the main containing cavity, so as to optimize the structural layout of the gears, and further compress the size of the overall pusher device by overlapping the projection surfaces between the gears.

The utility model discloses a novel turn light which comprises a shell used for containing a display panel, the display panel is a panel module arranged in the shell, and a clamp spring mechanism used for being fixed to a partition plate at the bottom of the panel module is arranged on a bottom plate of the shell. The display panel and the PCB are modularly arranged in the turn light, and then the bottom plate is packaged through the snap spring mechanism, so that the arrival clock can be arranged in the cavity between the bottom plate and the panel module, and the arrangement structure in the button is optimized.

The invention discloses an electromechanical integrated reaction momentum flywheel structure based on an air bearing, and belongs to the technical field of spacecraft attitude control equipment. Comprising a structure base, a rotating shaft, a porous air bearing, a motor rotor magnetic ring, a motor stator coil, an encoder magnetic ring, an encoder reading head, a bearing pressing ring, a flywheel and a shell, the structure base comprises a bottom base, a sleeve part and a bearing installation opening, and the rotating shaft comprises a flange, a magnetic ring installation shaft neck and a bearing installation shaft neck. The bearing installation shaft neck is arranged in a center hole of the porous air bearing in a penetrating mode, the motor rotor magnetic ring is tightly sleeved on the magnetic ring installation shaft neck, the motor stator coil is embedded between the sleeve portion and the motor rotor magnetic ring, a uniform gap is formed between the motor stator coil and the motor rotor magnetic ring, and the encoder magnetic ring is tightly sleeved on the lower end portion of the magnetic ring installation shaft neck. The encoder reading head is sleeved outside the encoder magnetic ring and is fixed with the bottom base; and a uniform gap is formed between the encoder reading head and the encoder magnetic ring. The device has the advantages of high reliability, long service life, low power consumption and high control precision.

This invention discloses a PCB motor based on an FPC and its micro fan. The FPC-based PCB motor includes an FPC flexible board and a PCB coil board. Multiple stator coils are printed on the PCB coil board to form a PCB stator winding. This invention replaces the traditional method of winding stator coils with enameled copper wire with directly printing the stator coils on the PCB coil board, and connecting and fixing them using the FPC flexible board. It cleverly utilizes the high integration of the PCB coil board and the flexibility and bendability of the FPC flexible board, allowing for better layout and installation of the motor within a limited space. Compared with traditional motor solutions, it significantly reduces the volume and space occupied by the stator coils, making it more suitable for thin and light fan designs. At the same time, it simplifies the assembly process, improves production efficiency, and reduces costs. The FPC-based PCB motor can be better integrated into the overall structure of the micro fan, making the micro fan more compact and thinner.

The utility model discloses an injection oil cylinder for an injection molding machine, which comprises an oil cylinder and a piston rod, and the piston rod can extend into the oil cylinder and can move along the central axis of the piston rod in the oil cylinder; end covers are arranged at the two axial ends of the oil cylinder, so that a sealed oil cavity is formed in the oil cylinder; any end cover is connected with a displacement sensor, and the displacement sensor comprises a sensor connecting rod capable of extending into the oil cylinder; moreover, a position magnetic block capable of being matched with the sensor connecting rod is arranged at the end, close to the sensor connecting rod, of the piston rod, the position magnetic block and the piston rod move synchronously, and the displacement sensor outputs displacement signals of the piston rod by detecting magnetic field changes caused by movement of the position magnetic block. According to the utility model, the displacement sensor is directly integrated on the end cover of the injection oil cylinder, the structure is compact, the size of the whole device is reduced, and the installation space is saved; the device is compact in structure, high in measurement precision, strong in anti-interference capability and convenient to install and maintain.

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

The utility model discloses a calcium carbonate auxiliary agent quantitative atomization adding device, the utility model discloses a storage agent jar is equipped with the stirring paddle in the jar, the metering conveying subassembly that the ceramic plunger metering pump that communicates with the storage agent jar is formed, the atomizer of metering conveying subassembly is connected through the anticorrosive pipeline, its inside is equipped with the spiral atomization shower nozzle, still has the compressed gas source that the gas pipe connects the atomizer through the take steady voltage valve, flowmeter. In addition, the utility model still contains the support, and the liquid level meter has in the storage agent jar lateral wall, and the one -way valve has between metering conveying subassembly and the anticorrosive pipeline, and the polytetrafluoroethylene blowdown valve is equipped in the atomizer bottom. The utility model can accurate quantitative conveying auxiliary agent and high -efficient atomization, make auxiliary agent and calcium carbonate powder even mix, promote the modification effect, simple structure, convenient operation, and the practicality is strong, has the remarkable application value in the dry -process production heavy modified calcium carbonate field.

The utility model relates to a motor device. The motor device comprises a machine shell, a motor installed in the machine shell, at least one speed reducing mechanism and a control panel assembly. The motor device comprises a Hall mechanism installed between the motor and the speed reducing mechanism. An adapter plate is arranged between the speed reducing mechanism and the control panel assembly, the Hall mechanism and the motor are electrically connected with the adapter plate, and the adapter plate is electrically connected with the control panel assembly. The motor device adjusts the setting positions of the control panel assembly and the adapter plate, so that the Hall mechanism and the motor are electrically connected with the adapter plate, the internal space of the machine shell can be reasonably arranged, and the integrity of the control shell part of the machine shell is kept. Power lines of the motor and the Hall mechanism only need to be connected with the adapter plate, internal space connection and layout structures are improved, and assembly is convenient.

The embodiment of the invention relates to the technical field of vehicle bodies, and discloses a rear shock absorption tower structure, a rear vehicle body assembly and a vehicle, the rear shock absorption tower structure comprises a rear shock absorption tower main body, and the rear shock absorption tower main body comprises a first mounting part arranged at the top end of the rear shock absorption tower main body and used for fixing a rear shock absorber; the second mounting part is arranged at the lower end of the rear shock absorption tower main body and is used for being connected with a lower swing arm mounting bracket; the third mounting part is arranged on the inner side of the lower part of the rear shock absorption tower main body and is connected with a rear floor; the fourth mounting part is arranged on the outer side of the upper end of the rear shock absorption tower main body and is connected with a hub package inner plate; and the fifth mounting part is arranged on the front side of the lower end of the rear shock absorption tower body, the inner side of the fifth mounting part is connected with a cross beam, and the outer side of the fifth mounting part is connected with a doorsill boundary beam. According to the technical scheme, the bearing performance of the structure can be improved, and the vehicle space layout is optimized.

The utility model relates to blow mould technology field especially is concerned to a kind of large capacity straight line bottle mould bottle clamp mouth structure, it includes mould body and bottle clamp mouth module.Mould body top is equipped with bottle mouth injection molding area and annular clamping groove, bottle clamp mouth module is supported in annular clamping groove by cylindrical portion and realizes installation, plate portion is equipped with heating head guide through-hole, is located directly above bottle mouth injection molding area.Bottle clamp mouth module optimally stainless steel material, plate portion is equipped with snatch hole and is convenient to dismount, mould body top can be equipped with round boss portion and bottle clamp mouth module is pasted together.The utility model can effectively protect bottle mouth area, avoid scratch or damage, improve installation stability and durability, simplify dismounting operation simultaneously, improve production efficiency and product quality.

The utility model discloses a high sensitivity night -vision sighting telescope of super second generation image intensifier in the technical field of night -vision sighting telescope, including image intensifier, the one side of image intensifier is installed with sighting telescope body, and sighting telescope body includes energy storage component, and the one end of energy storage component away from image intensifier is provided with observation objective lens, and the one side of image intensifier is installed with display fluorescent screen, and this scheme can be through the combination use of auxiliary ocular lens, observation mirror barrel to carry out optical observation to observation object, also can be through the combination use of display fluorescent screen, photoelectric cathode part, battery machine shell to carry out night -vision observation to observation object, simultaneously still can according to the use demand of different scene to image intensifier, observation objective lens, battery machine shell carries out dismounting connection and repair replacement operation, can realize the operation of battery machine shell modularization replacement, can flexibly adjust the use parameter of image intensifier, observation objective lens to can promote the flexibility and practicality of this equipment in the technical field of night -vision sighting telescope.

This utility model discloses an integrated welding and marking device for automotive door sill beam welding assemblies, including a fixture base, a laser marking device, a servo welding gun, multiple L-shaped clamps, and a control box. The laser marking device and servo welding gun are fixed to the fixture base, and the L-shaped clamps are bolted to the top of the base, holding the door sill beam welding assembly. The servo welding gun is fixed to the upper part of the base via a bracket, performing welding above the part; the laser marking device is mounted on the bottom of the base via a fixed frame, performing back marking below the part. The control box is bolted to the side of the base, and cables connect the marking device and the welding gun via wiring channels. This device, through its integrated structure, simplifies the process flow, reduces part transfer, lowers the rate of missing, damaged, and misplaced QR codes, saves logistics time and equipment space, improves production efficiency and traceability reliability, and is suitable for the automated production of various door sill beam welding assemblies.

This utility model provides a fiber optic thermal printer for detecting label gaps, including a base, a cover, a core, a rubber roller, and a thermal sheet. The core has a receiver installed in a mounting groove and a transmitter installed outside the groove. The cover has a U-shaped light guide groove containing a fiber optic cable. The rubber roller is located in the mounting groove and adjacent to the thermal sheet. The thermal sheet and rubber roller face each other, forming a paper path. The paper path passes through the mounting groove. The light outlet is located inside the mounting groove, and the light inlet is located outside. The transmitter faces the light inlet, and the light outlet faces the receiver. In this invention, the detection light first bypasses the paper in the paper path, and then passes through the paper only once to detect edges and gaps, significantly reducing light loss and improving detection stability and print quality.

This utility model relates to the technical field of heat exchange devices and discloses a heat exchanger comprising: a first housing, a second housing, a heat exchange tube, and a flow-turbulence assembly. The two ends of the heat exchange tube are respectively connected to the first housing and the second housing, and the flow-turbulence assembly is disposed inside the heat exchange tube. The flow-turbulence assembly includes: a connecting shaft and turbulence wires. The connecting shaft extends from one end of the heat exchange tube to the other end, and the turbulence wires are coiled into a hollow streamline shape, with multiple turbulence wires spaced apart on the connecting shaft. The flow-turbulence assembly can disturb the flow of the medium inside the heat exchange tube, enhancing the turbulence degree of the medium flow by changing the flow direction, causing the medium to change from laminar flow to turbulent flow. During turbulence, the various parts of the fluid mix violently, accelerating heat transfer and improving the heat exchange efficiency of the heat exchange tube. Furthermore, by setting the flow-turbulence assembly inside the heat exchange tube, the additional space occupied by the turbulence assembly is avoided, making the structure of the heat exchanger more compact and optimizing the structural layout.

The utility model provides a kind of integrated sand shooting structure, it is related to molding machine technical field.It includes integrated unit, multi-contact oil cylinder unit and auxiliary sand shooting unit, and multi-contact oil cylinder unit and auxiliary sand shooting unit are all set on integrated unit, and the outlet of auxiliary sand shooting unit forms sand inlet, sand can enter sand box structure from sand inlet.Through simultaneously integrated with multi-contact oil cylinder unit and auxiliary sand shooting unit on integrated unit, on the basis of keeping multi-contact oil cylinder unit to carry out compaction operation, sand can directly enter sand box structure through sand inlet on auxiliary sand shooting unit, without setting separate sand inlet structure outside integrated unit, therefore, overall structure is simplified, more simple, structure layout is optimized, space is saved, effectively improve sand inlet effect.

This invention relates to the field of electric motors, and particularly to a stator assembly and motor with balanced windings. Each stator slot contains six layers of rectangular conductors. The connection paths of the stator windings at the hairpin ends are as follows: conductor 1 is connected to conductor 1 in another stator slot using a combined span configuration; conductor 2 is connected to conductor 3 in another stator slot using a full-pitch span configuration; conductor 4 is connected to conductor 5 in another stator slot using a combined span configuration; and conductor 6 is connected to conductor 6 in another stator slot using a full-pitch span configuration. In this invention, the number of elements in each branch of each phase winding is the same, and the number of phase slots and layers traversed by each branch is also the same. This essentially achieves the same back EMF phase and magnitude in each branch, and the same resistance and inductance at the beginning and end of each branch, thus realizing a balanced arrangement of the three-phase windings.