299 results about "Brushless motors" patented technology

The application relates to an adjustable Hall plate brushless motor, belonging to the technical field of brushless motors, which comprises a protective shell, a first end cover, a stator, a rotor, a connecting cover assembly and a circuit board, the stator is connected in the protective shell, the rotor is connected in the stator, the circuit board is connected on the stator, the first end cover is connected at one end of the protective shell, and the connecting cover assembly is connected at the other end of the protective shell; the connecting cover assembly comprises a second end cover, an adjusting piece and a Hall plate, the second end cover is connected on the protective shell, the adjusting piece is connected on the second end cover, the Hall plate is provided with a Hall sensor, the Hall plate is connected on the adjusting piece, and the adjusting piece is used for adjusting the position of the Hall plate. The Hall plate and the circuit board are separately arranged, if the mounting position of the Hall sensor of the Hall plate is inconsistent with the preset position, the position of the Hall plate is adjusted through the adjusting piece, so that the position of the Hall sensor is adjusted to the preset position, and the precision of motor forward and reverse rotation is improved.

The invention relates to the technical field of motor control, in particular to a brushless motor electronic speed regulation circuit for an unmanned aerial vehicle and a control method of the brushless motor electronic speed regulation circuit. The brushless motor electronic speed regulation circuit comprises a printed circuit board, a power supply module and a grid driving module. The printed circuit board is provided with a plurality of wiring layers which are stacked, and comprises a first power supply layer and a second power supply layer which are adjacent to each other in the vertical direction and are overlapped and aligned, and an electrical control layer. The power supply module is arranged on the first power supply layer and the second power supply layer, the first power supply layer and the second power supply layer are electrically connected through a matrix via hole array, and the power supply module is used for being electrically connected with an external power supply and supplying power to a circuit after processing. The grid driving module is arranged on the electrical control layer, is powered by the power supply module and is used for outputting driving voltage to the brushless motor, large current transmission and balanced distribution of the multi-channel motor controller can be realized on a single printed circuit board, and electromagnetic interference of a power loop on a control signal is inhibited.

This utility model relates to a stator upper frame for a brushless motor and a stator winding assembly structure based on the upper frame. A hub is provided on the outer edge of the end plate of the upper frame, and slots and grooves are provided on the hub. These slots and grooves are used to position the lead wires of the coil assembly, allowing the lead wires to be controlled by the upper frame. Since the slots and grooves are located outside the motor housing, the lead wires are restricted by the grooves and extend along the motor axis outside the motor, reducing the space required for motor storage. Simultaneously, the mutually separated grooves and grooves restrict adjacent lead wires to maintain a certain distance, preventing them from tangling. The perpendicular slots and grooves effectively prevent lead wire rotation, ensuring the stable position of each lead wire. Especially when using rigid lead wires, each lead wire maintains a stable posture due to the constraint of the hub, facilitating automated motor assembly.

A fixture for assembling an evaporator fan rotor assembly, belonging to the technical field of permanent magnet DC brushless evaporator fans, addresses the problem of low efficiency caused by the need for multiple sets of fixtures in the press-fitting of existing internal rotor structure motor rotors. This fixture includes a base, a floating plate, a pressure plate, and a release template. The base is equipped with a top rod, guide post one, and guide post two. The floating plate is fitted onto guide post one, with a core placement assembly on it for pre-installing the core. The pressure plate is fitted onto guide post two, with a magnet pressing head and guide post three on its bottom side. The release template is fitted onto guide post three, with mounting holes on its magnet transfer plate for pre-installing magnets. Each component is elastically buffered by springs, and the core and magnet mounting positions are precisely aligned using a positioning structure. This fixture integrates the core and magnet press-fitting process, reducing the number of fixtures, improving assembly accuracy and production efficiency, and lowering production costs. It is suitable for the efficient assembly of internal rotor structure brushless motor rotors.

The application relates to the technical field of handheld gun drills, and discloses a brushless motor mute gun drill, which comprises a gun body and a chuck, the inner wall of the gun body is fixedly connected with a driving motor, the outer wall of the driving motor is provided with a flow guide mechanism, the flow guide mechanism comprises a flow guide sleeve, the flow guide sleeve is sleeved in the gun body, a flow guide cavity is formed in the flow guide sleeve, baffles are fixedly connected to the cavity wall of the flow guide cavity and separate the flow guide cavity into different volume cavities, the baffles are provided with flow guide holes to communicate the inside of the flow guide cavity, the heat dissipation air reduces noise during flow in the different volume cavities in the flow guide cavity, and a flow distribution fan is arranged, which rotates along the inner wall of the flow guide sleeve. The flow guide mechanism is arranged to guide the heat dissipation air, the heat dissipation air flows in the flow guide cavities of different volumes separated by the baffles, the heat dissipation air is subjected to noise reduction, the noise generated by the driving motor is subjected to sound insulation, and the noise generated by the driving motor and the heat dissipation air is reduced.

1. The name of the design product: Forklift brushless motor (BY-030). 2. The use of the design product: Motor for converting electrical energy into mechanical energy. 3. The design points of the design product: In shape. 4. The picture or photo that best indicates the design points: Perspective view 1.

The application relates to the technical field of handheld gun drills, and discloses a brushless motor mute gun drill, which comprises a gun body and a chuck, the inner wall of the gun body is fixedly connected with a driving motor, the outer wall of the driving motor is provided with a flow guide mechanism, the flow guide mechanism comprises a flow guide sleeve, the flow guide sleeve is sleeved in the gun body, a flow guide cavity is formed in the flow guide sleeve, baffles are fixedly connected to the cavity wall of the flow guide cavity and separate the flow guide cavity into different volume cavities, the baffles are provided with flow guide holes to communicate the inside of the flow guide cavity, the heat dissipation air reduces noise during flow in the different volume cavities in the flow guide cavity, and a flow distribution fan is arranged, which rotates along the inner wall of the flow guide sleeve. The flow guide mechanism is arranged to guide the heat dissipation air, the heat dissipation air flows in the flow guide cavities of different volumes separated by the baffles, the heat dissipation air is subjected to noise reduction, the noise generated by the driving motor is subjected to sound insulation, and the noise generated by the driving motor and the heat dissipation air is reduced.

To construct a portable and inexpensive massage machine that allows the person being treated to sit in a simple chair and easily receive back massage. [Solution] The massage machine 10 comprises a cover member 14 made of a stretchable material and having a strip-shaped member 14C that extends longitudinally in the center between an upper end 14T and a lower end 14B; a housing 30 having a housing section 30A that accommodates a treatment block 20 comprising a back shell 22, a pair of rails 18A and 18B, a pair of massage ball units 32A and 32B comprising massage balls 32, and a tapping ball unit 16, and the upper part of which is covered when the cover member 14 is attached; a controller 100 that controls the operation of a brushless motor 70 and a brushed DC motor 48 in the treatment block 20; and a remote controller 40 that sends and receives bidirectional signals to and from the controller 100.

The application provides a control method and device of a direct-current brushless motor, comprising the following steps: acquiring first operation data of motor operation through a position sensor, acquiring a first estimated parameter related to a load through a first position sensorless algorithm, updating a second position sensorless algorithm in a cloud server through the first operation data and the first estimated parameter to obtain a third position sensorless algorithm, and acquiring the third position sensorless algorithm sent from the cloud server; then updating the first position sensorless algorithm through the third position sensorless algorithm, and controlling the motor operation based on the updated first position sensorless algorithm. Since the control advantages of the position sensor and the position sensorless algorithm are considered, the updated first position sensorless algorithm can significantly improve the accuracy of the motor rotor position detection result, and the probability of abnormal starting of the direct-current brushless motor is minimized, so that the application has wide applicability.

The invention relates to a rotor (10) for a brushless electric machine, wherein the rotor (10) consists of a plurality of stacked, ferromagnetic stamped sheets (20) and connected to one another, and has a longitudinal axis (22) of the rotor (10) around which magnetic elements (28) are arranged at uniform angular intervals, wherein the magnetic elements (28) are fixed in the rotor (10) when viewed in the direction of the longitudinal axis (22).

The utility model discloses a magnetic portable brushless motor drilling and tapping machine, it includes: main body, lifting assembly, magnetic attraction base. The main body includes shell group, rotation part, linkage assembly, brushless motor, control module, one department, and the accommodation department has the accommodation groove, electric capacity groove, and the accommodation department sets up the downside of the corresponding brushless motor of shell group with the part with electric capacity groove, and control module is electrically connected with brushless motor, and control module is located in the accommodation groove, and control module includes at least electric capacity, and electric capacity is at least partially located in the electric capacity groove, and thus can effectively reduce the overall volume of the utility model.

The application relates to the technical field of motor controller testing, and particularly discloses a motor controller testing circuit, which comprises a brushless motor controller testing circuit module, a brushed motor controller testing circuit module and an aviation socket module; the brushless motor controller testing circuit module and the brushed motor controller testing circuit module are electrically connected with the aviation socket module; when the motor controller is tested, the tester can flexibly and conveniently insert the brushed motor controller testing circuit module or the brushless motor controller testing circuit module into the shared aviation socket module according to the type of the tested motor controller, so that the tested motor controller can be tested, the test is convenient and fast, the detection efficiency is high, and the generality is good.

The application relates to the field of grass cutting machines, in particular to a grass cutting robot driving module based on a brushless motor and a driving module identification method. The grass cutting robot driving module based on the brushless motor comprises a driving unit, an identification unit and a sensing element; the identification unit and the sensing element are connected with the driving unit, and the identification unit is electrically connected with the driving unit or an external control module; wherein the identification unit is used for identifying the sensing element and outputting an ID signal. The ID signal is determined and outputted through the identification unit, so that the sensing elements of the multiple grass cutting robot driving modules based on the brushless motor can be arranged in different forms, the outputted ID signals can be adjusted, the wiring inconvenience when the wires are adopted can be avoided, the switch malfunction when the dial switch is adopted can be avoided, and the identification stability of the grass cutting robot driving module based on the brushless motor can be improved.

This invention relates to the field of blow-dryer / vacuum combos, and more particularly to a brushless motor drive control circuit and device for such combos. The circuit includes a microcontroller, a voltage detection unit, and a driver chip. When the user presses the mode switch button, the microcontroller outputs a voltage detection signal to the voltage detection unit. The voltage detection unit detects the voltage waveform of the power supply and outputs a mode switch signal to the microcontroller when the voltage waveform crosses zero. The microcontroller outputs a PWM signal corresponding to either the blow-drying or vacuuming mode to the driver chip based on the mode switch signal. The driver chip controls the direction of the brushless motor, thus switching between the blow-drying and vacuuming modes of the blow-dryer / vacuum combo. This circuit, by switching modes when the voltage waveform crosses zero, effectively reduces current surges, electromagnetic interference, and motor losses, thereby improving system stability and extending equipment lifespan.

The utility model relates to motor technical field, this general motor rotor support structure, this support structure is used to install motor's rotor, stator and axle core, and the support structure includes casing, upper cover, lower cover, gasket, two bearings and screw, the upper cover and lower cover are arranged at the front end and rear end of casing respectively, two bearings are arranged in the upper cover and lower cover, are connected with axle core, the gasket is arranged at the bottom of lower bearing, and is placed in the lower cover, and the screw is fixed from the upper cover and is arranged in the rear cover. This general motor rotor support structure can satisfy the use demand of brushless motor and carbon brush motor, when needing to use brushless motor, installs the brushless stator rotor in this motor support structure, when needing to use carbon brush motor, installs the carbon brush stator rotor in this motor support structure, guarantees that can switch flexibly according to the demand of customer.

This utility model discloses a compact food processor, including a cup body with a grinding chamber, a brushless motor disposed below the cup body, and a circuit board electrically connected to the brushless motor. The circuit board includes a brushless drive board with an IPM module and an energy storage board with a capacitor module. The brushless drive board and the energy storage board are separately disposed but electrically connected, and are independently disposed outside the brushless motor. The brushless drive board and the energy storage board are smaller than the circuit board, making it easier to install the brushless drive board and the energy storage board in the narrow space of the food processor, improving the flexibility of circuit board installation, improving the space utilization rate inside the food processor, and enhancing the compactness of the whole machine, making the overall size smaller. At the same time, it can avoid the airflow for heat dissipation of the IPM module being blocked when passing through the capacitor module, which would result in poor heat dissipation of the IPM module, thus ensuring the stability of the whole machine operation.

A kind of pool sweeper brushless motor, including a housing, the housing inside is provided with the cavity of two end ports, also include: stator assembly, the stator assembly is installed in cavity, and the stator assembly is shaped with center hole, and the stator assembly with the waterproof structure between the inner wall of the cavity is used to fill the gap between the stator assembly and the inner wall of cavity;Rotor assembly, the rotor assembly is set in the center hole, and both ends are rotatably connected in the cavity, the rotor assembly includes the magnetic ring encapsulated in waterproof layer, and the waterproof layer is connected with impeller to push water flow.The brushless motor provided by the present technology, the stator assembly and the rotor assembly are respectively waterproofed, so that the space in the motor cavity can be the same as the pressure of external space, so as not to be affected by pressure difference, and ensure the waterproof effect.

This invention discloses a brushless motor current sampling method, specifically relating to the field of brushless motor technology. The method involves acquiring a current waveform sequence under no-load driving conditions and extracting small current feature segments before and after commutation. Based on each feature segment, a feature vector is constructed, including the pulse width modulation duty cycle change, driving phase voltage fluctuation, and relative phase. The feature vector is input into a small current error prediction model trained with historical errors, outputting a missampling offset. A linear interpolation method is used to superimpose the offset onto the original current sequence, generating a corrected current waveform. The corrected waveform is then input to a controller, where closed-loop regulation is achieved through a vector control algorithm. This invention effectively reduces the accumulation of sampling errors in the commutation section, improves current control accuracy, and is suitable for motor drive scenarios requiring high frequency and high dynamic response.

1. Name of the product in this design: Interlocking stator core. 2. Purpose of this design: To form a stator core for a brushless motor by circumferentially splicing together multiple parts. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: a 3D model. 5. Other situations requiring explanation: The rear view is symmetrical to the front view, the right view is symmetrical to the left view, and the bottom view is symmetrical to the top view. Therefore, the rear view, right view, and bottom view are omitted.

This invention proposes a power modulation system, comprising: a rectifier unit having a first input terminal, a second input terminal, a first output terminal, and a second output terminal, wherein the first input terminal and the second input terminal are connected to an AC power grid, and the rectifier unit is used to convert AC power into DC power; a power factor correction unit connected in parallel between the first output terminal and the second output terminal; the power modulation system further includes a filter unit having a third capacitor element and a switching element, and connected in parallel between the first output terminal and the second output terminal. The power modulation system proposed in this invention effectively improves the power factor when the brushless motor is running at high speed, and ensures output torque and reduces motor copper losses when the brushless motor is running at low speed.

The utility model provides a kind of bidirectional shaftless brushless motor based on electromagnetic field, including shell, double-end vertical magnetic core winding frame, front rotating shaft sleeve, rear rotating shaft sleeve, two bearings, control circuit, double-end vertical magnetic core winding frame includes support ring, winding column, sector plate, front rotating shaft sleeve, rear rotating shaft sleeve all include output sleeve, outer ring part, the both ends of double-end vertical magnetic core winding frame are provided with W-phase winding group, U-phase winding group, V-phase winding group, W-phase enameled wire, U-phase enameled wire, V-phase enameled wire are wound on different winding column respectively, W-phase enameled wire, U-phase enameled wire, V-phase enameled wire one end is connected and another end is electrically connected with control circuit, there are magnet on outer ring part and evenly distributed, can reduce the radial thickness of motor, can more greatly increase the passing space of airflow or water flow, and can realize front rotating shaft sleeve and rear rotating shaft sleeve same direction rotation or reverse rotation, satisfy multiple use requirements.

The utility model belongs to the field of balance car, and relates to balance car controlling means, include: controller, brushless motor three -phase drive circuit, single -phase half bridge drive circuit, gyroscope sensor circuit, light control circuit, hall detection circuit, BUCK -BOOST voltage reduction circuit, charge detection circuit and battery detection circuit through electrical connection with controller, controller is used for receiving the information of gyroscope sensing circuit and hall detection circuit, keeps the balance of balance car through the rotation of control motor, brushless motor three -phase drive circuit is used for receiving the control signal of controller, drives brushless motor rotation, single -phase half bridge drive circuit is used for auxiliary drive or brake control, and gyroscope sensor circuit is used for detecting the inclination angle and angular velocity of balance car, and inclination angle and angular velocity are transmitted to controller. The balance stability is improved, the battery management is improved, the power system efficiency is improved, and the additional function is increased.

This invention discloses an intelligent recovery system for mother and daughter ships and its recovery method. The intelligent recovery system includes a mother ship and at least one daughter ship. The mother ship includes a hull, a hull frame, and a hull body. The hull includes left and right hollow floating materials. The hull frame connects the hull and the hull body. The hull body is a rectangular waterproof hull. The inner sides of the left and right hollow floating materials and the lower part of the rectangular waterproof hull body form a receiving space for recovering the daughter ship. The daughter ship's hull is set to a first color. The mother ship captures an image from directly in front of it using a camera, identifies the daughter ship based on a color recognition algorithm and the first color, determines the azimuth angle of the daughter ship relative to the mother ship, and then combines this with the distance between the mother and daughter ships to obtain the Cartesian coordinates of the daughter ship relative to the mother ship. Based on the mother ship's attitude angle and the daughter ship's Cartesian coordinates relative to the mother ship, the mother ship controls the PWM of a brushless motor to adjust the speed, achieving a dual-loop control of position and angle, thereby controlling the mother ship to move towards the daughter ship to complete the recovery operation. This invention can efficiently complete the recovery task.

An impactor 10, which is electrically powered and suitable for use in surgery, includes: a housing; a brushless DC motor including a stator having multiple coils and a rotor having multiple magnets; a motor controller including a motor driver that supplies current to the coils of the stator to cause the rotor to rotate about the stator; a planetary gear train including an input section, a sun gear, planetary gears, a ring gear, and an output section; a shaft including a shaft section having a non-circular cross-sectional shape; and an impact assembly 15 including a drive component and a driven component.

This invention provides a grid-connected control method for a flywheel energy storage system based on a dual-rotor brushless motor, belonging to the field of novel energy storage equipment and motor control technology. The control method includes: using the kinematic equation between the stator magnetic field speed, the speed of the adjusting magnetic ring rotor, and the speed of the permanent magnet rotor as the first constraint; using the synchronization of the adjusting magnetic ring rotor speed with the power grid as the second constraint; determining the stator magnetic field speed as the sole control degree of freedom for adjusting the operating state; performing boundary judgment and correction on the stator magnetic field speed; and adjusting the stator magnetic field speed to make the speed of the permanent magnet rotor and the speed of the flywheel change along a linear invariant trajectory determined by the first constraint, thereby realizing the flywheel energy storage system's control requirements for the power grid. This invention has a clear control structure and well-defined constraint relationships, enabling multiple grid-connected support functions while ensuring the safe operation of the flywheel.

This invention discloses an adjustable-height cage for inducing bipedal mice to stand upright, comprising a hollow cage body with an open top and a cage lid. The cage lid has a groove with a sliding block inside. A threaded rod is mounted on the cage lid, one end of which is rotatably connected to a fixing plate, and the other end is connected to a brushless motor. The fixing plate and the bottom of the brushless motor are both fixed to the cage lid. One end of the sliding block is threaded to the threaded rod, and the other end is slidably connected to the groove. A feeding tube is vertically inserted into the sliding block, and the lower end of the feeding tube passes through a connecting block and connects to the cage body. This invention, through the slow-moving feeding tube driven by a brushless motor, allows mice to not only maintain an upright posture during feeding but also gradually learn to move while standing, efficiently constructing a bipedal mouse movement model.

The present application relates to the technical field of rehabilitation equipment control, and particularly relates to a control method and system of a lower limb movement rehabilitation training machine. The method comprises the following steps: starting the brushless motor lower limb movement rehabilitation training machine, collecting the force detection parameters of the user's stepping and the operation feedback parameters of the brushless motor in real time; sending the resistance adaptation instruction to the brushless motor of the lower limb movement rehabilitation training machine based on the force detection parameters and in combination with the operation feedback parameters, and real-time regulating and controlling the output impedance of the brushless motor; detecting the posture signal of the lower limb movement rehabilitation training machine in real time during the continuous operation of the output impedance regulation and control of the brushless motor; and triggering the emergency stop instruction of the brushless motor immediately when the abnormal posture signal is detected. The present application adopts the brushless motor, combines the standby protection countdown with the zoned, angularly linked collection of the force parameters and the dynamic impedance regulation and control, so as to realize the portable and silent operation of the equipment and the personalized resistance adaptation, and to enhance the operation stability and the training adaptation accuracy.

This utility model relates to the field of electric actuator technology, specifically to a testing device for a brushless motor electric actuator. It includes a power supply unit, a control unit, an angle detection unit, and a motor drive unit. The power supply unit is a power module, the control unit includes an MCU module, the motor drive unit is a brushless motor drive module, and the angle detection unit is a digital angle sensor. Through this method, this utility model can obtain the angle feedback signal of the brushless motor electric actuator body and compare it with the angle data measured by the angle sensor built into the testing device to determine whether the operating data of the electric actuator meets the design requirements. Buttons are used to set the start and end of the test. The test results are displayed on the screen, and different buzzers sound to indicate whether the test is passed or failed. Simultaneously, the power supply voltage and operating current are monitored to ensure the accuracy and safety of the test.