638 results about "Motor unit" patented technology

A stand-alone motor unit for use with a piece of power equipment includes a housing, an electric motor, a battery pack to provide power to the motor, a battery receptacle arranged on the housing and configured to receive the battery pack, and a control panel arranged on either the housing or the piece of power equipment. The control panel is operable to control operation of the electric motor.

The invention provides an axial magnetic flux motor driven RV speed reduction driving assembly which comprises an axial magnetic flux motor unit and an RV speed reducer unit which are connected, the axial magnetic flux motor unit and the RV speed reducer unit are integrated in a shell, the axial magnetic flux motor unit comprises a plurality of stators which are distributed in an annular mode, and the stators are connected with the axial magnetic flux motor unit. A stator is arranged on the rotor, a disc type rotor is arranged on each of the two sides of the stator, a plurality of torsion bars which are uniformly distributed in the circumferential direction are arranged on the rotor facing the side where the RV speed reducer unit is located, the torsion bars are connected with a sun gear of a planetary gear train of the RV speed reducer unit, and an output disc of the RV speed reducer unit is a power output end. The RV speed reduction driving assembly driven by the axial magnetic flux motor has the advantages of being large in starting torque, high in mechanical efficiency, compact in structure, high in overload capacity and the like.

The magnetic suspension blood pump is high in integration level, small in magnetic field coupling degree and high in regulation and control precision and comprises a pump shell, an impeller, a motor unit and a magnetic suspension unit, and the axial suspension state of the impeller is jointly maintained through the magnetic acting force between an electromagnet assembly and a suspension magnet assembly and the magnetic acting force between a motor stator assembly and a motor rotor magnet; the repulsive force of the static magnetic ring array and the movable magnetic ring array maintains the radial suspension state of the impeller. The magnetic suspension unit and the motor unit are arranged at the upper end and the lower end of the impeller respectively, the distance between the magnetic suspension unit and the motor unit is increased in space, the magnetic coupling effect between the magnetic suspension unit and the motor unit is greatly reduced, control difficulty is remarkably reduced through independent control of the magnetic suspension unit and the motor unit, and system stability is improved. The special structural design improves the space utilization rate, reduces the size of the pump body, disperses a heat source and reduces the heat dissipation pressure; the bias magnetic field provided by the suspension magnet provides open-loop magnetic force in the axial direction, the closed-loop control force needing to be provided by the electromagnet assembly is greatly reduced, and the purposes of saving energy and reducing consumption are achieved.

The invention relates to an intelligent door anti-pinch method and system, an intelligent door comprises a frame body and a movable leaf capable of being opened and closed in a sliding mode in the frame body, and the method comprises the steps that the rotation angle value of a motor shaft of a motor unit is collected in real time; measuring an actual distance value between a preset measuring point on the movable leaf and a corresponding reference surface on the door frame in real time through a distance sensor; calculating a theoretical displacement value of the movable fan relative to the initial zero point based on the rotation angle value; continuously comparing the deviation value between the theoretical displacement value and the actual distance value in the displacement process of the movable fan; when the deviation value exceeds a preset safety threshold value, it is judged that the foreign matter exists; and sending a control instruction for stopping door closing or reverse operation. According to the scheme, whether foreign matter blocking exists or not is effectively recognized by comparing the deviation between the motor rotation angle and the theoretical displacement and the deviation between the sensor distance measurement and the actual distance, and non-contact obstacle clamping judgment is achieved. And the method is suitable for various forms of intelligent sliding door systems.

The invention relates to a motor fault detection method, a multi-motor system, electrical equipment and a medium, and the method comprises the steps: determining the motor operation state of each motor in the motor system through the operation state detection of motors, carrying out the motor grouping according to the motor operation states, and obtaining a motor unit corresponding to each motor operation state, and then, for the motor unit corresponding to each motor operation state, fault detection is performed on each type of motors in the motor unit according to a preset fault detection mode corresponding to the motor operation state, and motor classification fault detection is realized. Therefore, the possible error detection condition caused by mutual influence of different motor parameters during parallel operation of the multiple motors is avoided, the motor fault detection result is output based on the fault detection information, and the problem caused by the fact that a fault motor in a multi-motor system cannot be accurately recognized and positioned in the prior art is solved.

The invention provides a grid-connected system and method based on parallel operation power equalization of synchronous motor units, and relates to the technical field of new energy and electric power engineering. The system comprises a new energy station power generation system and a parallel synchronous motor unit group, wherein the parallel synchronous motor unit group at least comprises two synchronous motor units which have the same electrical parameters and are connected in parallel; the first end of the parallel synchronous motor unit group is connected with the new energy station power generation system, and the second end is connected with the power grid. The method comprises the following steps: connecting one ends of all synchronous motor units to the same power supply bus, applying excitation current to the motor at the end, applying excitation current to the motor at the other end, then measuring the generator end voltage waveform, adjusting the relative mechanical angles of the synchronous motor units according to the measurement result, and ensuring that the relative mechanical angles of all the motor units are equal. And power equalization between parallel synchronous motor units is realized. The system structure can be simplified, the cost can be reduced, and the reliability and the flexibility of the new energy grid-connected system can be improved.

A folding structure of a rearview mirror includes: a cover; a motor unit in the cover; and a shaft unit coupled to the motor unit. The shaft unit may receive a driving force from the motor unit and rotate the cover relative to the base. The shaft includes a check ring coupled to the cover, and the check ring supports a load generated when the cover moves up and down.

A construction system motor unit comprising a casing, an electrical motor mounted therein, a power outtake element having a connector, and being rotationally connected relative to said casing, a gearing mechanism provided between the electrical motor and the power outtake element, and a sensor to sense the position of the power outtake element relative to the casing, the sensor having a disc element and a sensor device, the disc element is connected to the power outtake element or to a gear of the gearing mechanism via a first rotation transfer part and a receptacle for receiving the first rotation transfer part, which receptacle is formed in the power outtake element or in said gear of the gear mechanism, and wherein the receptacle and the first rotation transfer part have cooperating shapes and sizes configured to allow a backlash between the power outtake element and the first rotation transfer part.

The invention discloses a heat dissipation system and method for a sealed motor, and belongs to the technical field of sealed motors and transmission devices. The system comprises a motor unit, a multistage gearbox unit, a liquid cooling unit, an air cooling unit, a plurality of groups of sensors and a controller. The liquid cooling unit is integrated in the motor outer cover, and the air cooling unit is installed on the motor radiating ribs. According to the method, the total heating power and the variable target temperature of the system are dynamically calculated by collecting the current, the temperature and the rotating speed of the motor and gear signals of the gear box in real time, the required heat dissipation power is calculated in real time through a nonlinear function based on the temperature difference, and then heat dissipation resources of the air cooling unit and the liquid cooling unit are cooperatively distributed with the optimal energy efficiency ratio. According to the invention, feedforward prediction temperature control of dynamic working conditions is realized, the problems of heat dissipation lag, low energy efficiency and overheating risk of the sealed motor under complex load and multi-gear operation are solved, and the reliability, adaptability and overall energy efficiency of the system are significantly improved.

The present invention provides a motor unit comprising: a motor; a plurality of gears that transmit the torque of the motor; a housing having a housing space for housing the motor and the plurality of gears; oil stored in an oil reservoir located in a region below the vertical direction of the housing space; and an oil passage that supplies oil from the oil reservoir to the motor and recycles it using the oil reservoir. The housing has a partition wall that divides the housing space into a motor chamber for housing the motor and a gear chamber for housing the plurality of gears. The partition wall has an opening that connects the gear chamber and the motor chamber. The bottom of the motor chamber is located above the bottom of the gear chamber. The oil reservoir is located in a region below the gear chamber. An electric pump is provided in the path of the oil passage, which connects the oil reservoir to the electric pump and the electric pump to the motor chamber.

The utility model belongs to the technical field of hydraulic transmission, and discloses a hydraulic power source, a hydraulic system and operating machinery, the hydraulic power source comprises a motor unit, a pump unit and a pressurizing unit, the pump unit and the pressurizing unit are coaxially arranged on an output shaft of the motor unit and are respectively in transmission connection with the output shaft, and the pump unit is provided with an oil suction port and an oil outlet. The pressurizing unit is provided with a pressurizing working cavity and a pressurizing inlet of the pressurizing working cavity, and the pressurizing working cavity is communicated with the oil suction port. According to the hydraulic power source, the pump unit and the pressurization unit are coaxially connected to the output shaft of the motor unit, and operation of the pump unit and pressurization at the oil suction opening can be achieved only through self power.

To provide a driving device which improves corrosion resistance, reduces weight and suppresses vibration.SOLUTION: In a driving device 101 in which a motor part 50 and ECU 60 are integrally constructed, a motor case 201 is formed of a non-metallic molding material, and a cylinder part 22 extending in an axial direction of the motor part 50 and a front base 23 for holding a front bearing 56 which supports a shaft 55 on a front side of the motor part 50 are integrally formed. A rear frame 40 is a component different from the motor case 201 and holds a rear bearing 57 for supporting the shaft 55 on a rear side of the motor part 50. An ECU cover 70 is formed in a container shape for covering a substrate 65 of the ECU 60 with a resin material, and an end of a side plate 72 is joined to an end of the cylinder part 22 in the motor case 201. A stator 53 is molded by the non-metallic molding material. A stator mold part 25 which molds the stator 53 is integrally molded with the cylinder part 22 of the motor case 201.SELECTED DRAWING: Figure 2

To provide a robot which corresponds to the change of a frequency of vibration to be reduced.SOLUTION: A robot includes an arm, a motor and a control part. The control part includes a command generating part for generating a position command, a filter processing part for performing filter processing of the position command and generating a filtered command, and a driving signal generating part for generating a driving signal of the motor using the filtered command. The filter processing part includes: a first filter part which performs processing of reducing the component of a first target frequency to a signal based on the position command, and generates a first command; a second filter part which performs processing of reducing the component of a second target frequency to a signal based on the position command, and generates a second command; a switching part for selectively inputting the position command generated by the command generating part to the first filter part and the second filter part; and a synthesis part for generating the filtered command using the sum of the signal based on the first command and the signal based on the second command.SELECTED DRAWING: Figure 3

The present invention relates to a motor unit configured for actuating a rope of in particular a telescoping pole assembly including a telescopic pole, including a motor, a wheel comprising a rotatable wheel drum for receiving the rope, whereby an axis engage means is slidable between a first position in which the motor is torque-proof connected to the wheel and a second position in which the connection of the motor is released from the wheel is foreseen. The invention also relates to in particular a telescopic pole assembly comprising a telescopic pole with a rope connected thereto and the motor unit. The invention further relates to a method for switching between a motor operation of in particular a telescopic pole assembly and a manual operation of in particular the telescopic pole assembly and to a method for switching between a manual operation and a motor operation of in particular a telescopic pole assembly.

A power tool includes a trigger module, a motor unit, and a controller electrically connected to the trigger module and the motor unit. The controller stores parameter data that define a common control curve that represents a corresponding relationship between a reference pressed depth and a reference rotation speed. The controller obtains a pressing value from the trigger module, and outputs a control signal at least based on the common control curve and the pressing value to the motor unit. The common control curve has a low-speed curve segment and a high-speed curve segment. In a low speed mode, the controller outputs the control signal based on the low-speed curve segment. In a high speed mode, the controller outputs the control signal based on a high-speed control curve composed at least of the low-speed curve segment and the high-speed curve segment.

The invention provides a magnetic suspension integrated energy-saving refrigeration compressor, and relates to the technical field of refrigeration equipment, the magnetic suspension integrated energy-saving refrigeration compressor comprises a main body assembly, and the two ends of the main body assembly are in threaded connection with volute assemblies; the two volute assemblies are connected through a gas-liquid circulation assembly, a magnetic suspension motor unit is installed in the main body assembly, an impeller assembly is in driving connection with the interior of the magnetic suspension motor unit, and a magnetic suspension control module and a motor monitoring module are installed on the two side walls of the main body assembly respectively. Full magnetic suspension supporting is adopted, mechanical friction is avoided, energy is saved, consumption is reduced, the service life of a unit is prolonged, and operation noise is reduced. The integrated structure is matched with the sealing piece, gas and liquid leakage is prevented, gas circuit and system circulation is optimized, and the refrigeration energy efficiency is improved. The stable and efficient operation of the compressor is guaranteed through the wear resistance of the impeller and real-time monitoring and regulation of the intelligent module.

The invention belongs to the field of driving systems, and particularly relates to a parallel dual-motor hybrid power driving system and method. The system comprises a clutch module, an electric drive module and a gearbox module which are sequentially connected in series. The input end of the clutch module is connected with the power output end of a vehicle engine; the electric driving module comprises a driving motor unit, a power generation motor unit and a control unit; the output end of the driving motor unit is connected with the first connecting end of the gearbox module; the connecting end of the power generation motor unit is connected with the output end of the clutch module; the control unit is used for controlling connection or disconnection between the output end of the clutch module and the first connecting end of the gearbox module; the second connecting end of the gearbox module is connected with the wheel end of the vehicle. By means of the structural form of power source parallel connection and overall series connection, modular assembly can be achieved, the structural design is more reasonable, the overall structure of the driving system is simpler, and the cost is lower.

Motor unit (1) with an electric motor (11) which is arranged in a housing (12), wherein the motor unit (1) comprises a lubricant circuit which lubricates and cools the electric motor (11), wherein- the electric motor (11) comprises a stator (111) and a rotor (112) which is rotatably mounted in the stator (111) which is rigidly connected to the housing (12), wherein a rotor gap (RS) is located between the stator (111) and the rotor (112), wherein the stator (111) is at least partially surrounded by a stator housing (121) which is arranged within the housing (12), wherein the stator housing (121) is at least partially filled with lubricant and belongs to the lubricant circuit,- at least one lubricant pump (13) which is fluidically connected to the stator housing (121) and receives lubricant from the stator housing (121), wherein the lubricant pump (13) has at least one has an outlet for lubricant,which is fluidly connected to the stator (111) and the rotor (112), wherein the lubricant pump (13) delivers lubricant to the electric motor (11) via the outlet, characterized in that a flow generation unit (15) is provided, which sucks air from the housing (12) and blows it into the rotor gap (RS) in order to remove lubricant from the rotor gap (RS) in order to reduce the internal friction in the electric motor (11), wherein the rotor (112) forms a pump of the flow generation unit (14) and, during its rotation, delivers air into the rotor gap (RS) or to the rotor gap (RS), wherein the flow generation unit (15) comprises an oil separator (151) which is arranged in front of the rotor (112) in the direction of flow of the air through the flow generation unit (15),wherein the oil separator (151) separates lubricant contained in the air in the housing (12) and passes air with reduced lubricant content or lubricant-free air to the rotor (112) acting as a pump.

A drive mechanism (106) having a motor unit (202), a primary shaft (204), a drive piece (224), and a plurality of plates (212). The motor unit (202) generates a rotational force to rotate a motor shaft (304) that thereby rotates the primary shaft (204), which rotates the drive piece (224). The drive piece (224) includes a plurality of pins (506) that revolve around the primary shaft (204). Each of the plurality of plates (212) includes a plurality of channels (402) such that each of the plurality of pins (506), upon revolution, intermittently engages with each channel of the plurality of channels (402) of each of the plurality of plates (212). Each of the plurality of plates (212) exhibits rotation upon an intermittent engagement of a pin of the plurality of pins (506) with a channel of the plurality of channels (402) of respective plate of the plurality of plates (212).

A spool single-head supporting motor structurally comprises a supporting seat, a motor is fixedly arranged on one side of the supporting seat, and a spool coaxially corresponding to the motor sleeves the other side of the supporting seat; a rotating shaft is rotationally arranged in the motor, one end of the rotating shaft is rotationally arranged in the motor, the other end of the rotating shaft penetrates through the supporting seat, extends into the spool on the other side and is provided with a shaft head, and a bearing and a fixing part arranged on the outer wall of the bearing in a sleeving mode are movably arranged on the outer wall of the side, away from the motor, of the rotating shaft and used for fixing the bearing and the rotating shaft; the spool is provided with an inner cavity for containing the shaft head, the bearing and the fixing piece, a locking bolt is arranged in the inner cavity, and the spool is connected with the rotating shaft through the locking bolt. Precise positioning and fixing are carried out through the supporting seats arranged on the single side, the power transmission path is optimized, the problem of concentricity deviation caused by accumulated installation errors of multiple components is solved, the supporting seats on the single side provide anti-bending moment fulcrums for the motor shell, and the capacity of the whole motor unit for resisting upsetting moment generated by loads of a winding roller cantilever is enhanced.

The present application relates to the technical field of disc type motor, and aims to provide a low energy consumption torque variable motor, which comprises a plurality of disc type motor units arranged along the same line and connected in series on the same output shaft, and the output torque of the output shaft is driven by selecting one or more disc type motor units to drive the output shaft. The present application can reduce energy consumption, meet the demand of large torque output and seamless switching, and the disc type design of the motor unit can reduce the weight and save the cost. The gap between the disc type motor units is also conducive to ventilation and cooling, which is beneficial to maintaining a better temperature condition of the whole machine.

To suppress an increase in power consumption of a motor.SOLUTION: A control circuit 1 includes: a commutation mode setting part 11 that selects a first commutation mode that performs commutation of a coil 41 on the basis of a detection result of a zero cross of an inverse voltage of the coil 41 of a motor 4 or a second commutation mode that performs the commutation of the coil 41 in accordance with a target power conduction time, and sets the mode as a commutation mode; a drive control signal generation part 12 that generates a drive control signal Sd on the basis of the set commutation mode; a current limit value setting part 14 that sets a current limit value; and a current limit part 16 that instructs the drive control signal generation part 12 to stop an excitation of the coil 41 in the case where a current flowing through the coil 41 reaches a current limit value. The current limit value setting part 14 sets the current limit value to an upper limit value Ith1 in a period when the commutation mode is in the first commutation mode, and sets the curent limit value to a lower limit value Ith2 smaller than the upper limit value Ith1 at least a part in a period in the second commutation mode.SELECTED DRAWING: Figure 3

The application discloses a motor driving control system, an electric driving joint and a control method thereof. The control system comprises a first control module and a second control unit. The first control module comprises a first control unit, a signal gating control unit and a motor unit connected in sequence. The first control unit is configured to generate a first control signal according to the operation feedback signal of the motor unit through a vector control algorithm. The second control unit is electrically connected with the signal gating control unit. The second control unit is configured to generate a second control signal according to the operation feedback signal of the motor unit through a reinforcement learning algorithm. The signal gating control unit is configured to select the first control signal or the second control signal as a target control signal to control the operation of the motor unit according to the operation feedback signal of the motor unit and the second control signal. The application can solve the problem that the electric driving joint cannot quickly and safely and reliably adapt to different humanoid robots and has poor adaptability.

The present invention addresses the problem of providing a motor unit and an electric bicycle which achieve weight reduction and which make it easy to dissipate heat generated by a motor. A motor unit (2) comprises a case (3), a motor (4), a rotation shaft unit (5), and a transmission mechanism (6). The motor (4) is accommodated in the case (3). The rotation shaft unit (5) penetrates the case (3), is rotatably disposed, and has a pedal connected thereto via a crank arm. The transmission mechanism (6) transmits, to the rotation shaft unit (5), force from the motor (4). The case (3) has a first case part (3a) which has disposed therein a rotor (41) and a stator (42), and a second case part (3b). The first case part (3a) is formed from a material which has higher thermal conductivity than that of the second case part (3b). The second case part (3b) is formed from a material which has a lower specific gravity than that of the first case part (3a).

To provide a motor unit having high motor efficiency.SOLUTION: A motor unit 100 used for an electric vehicle includes a substrate 150, a motor 110 having a connector 111a, and a connector 250a directly attached to the substrate 150. The terminal 111a and the connector 250a are connected to each other by inserting one into the other in a direction parallel to the rotation axis of the motor 110.SELECTED DRAWING: Figure 4

Inverting mechanism for a glass forming machine comprising at least one preform, with two mouth-holding arms (2, 3) which are adjustable between a closed position holding an opening area of ​​a cup formed in the at least one preform and an open position releasing this opening area, a central shaft (7) to which the mouth-holding arms (2, 3) are rotationally fixed and about whose central axis the mouth-holding arms (2, 3) can be pivoted from a first pivot position associated with the at least one preform to a second pivot position associated with the finished mold, and a drive device (19) with a motor unit (20) by means of which drive energy for pivoting the mouth-holding arms (2, 3) between their first and second pivot positions can be generated, characterized in thatthat the motor unit of the drive device (19) is designed as a rotary motor (20) with a stator element (25) and a rotor element (21), and that the rotor element (21) of the rotary motor (20) is axially and rotationally fixed to the central shaft (7) of the drive device (19) and the rotary motor (20) is arranged coaxially with respect to the central shaft (7) of the drive device (19).

The objective is to obtain a vehicle body structure that suppresses the residual deformation of components positioned in front of the motor unit in the longitudinal direction of the vehicle during a frontal collision, and that reduces the constraints on the size of the battery that can be mounted. [Solution] The vehicle body structure S includes a motor unit 30 to which power is supplied and which outputs driving force for driving; a skeletal member 11 which is integrally molded by die casting and forms the frame of the vehicle, is disposed on the rear side of the vehicle of the motor unit 30 and includes a support portion 28 that supports a part of the motor unit 30; a protruding portion 36 provided on the motor unit 30 and projecting toward the skeletal member 11 side; and a recess provided on the support portion 28, which is open toward the motor unit 30 side and into which the protruding portion 36 is fitted.

To provide an electric pump which enables improvement of cooling efficiency of a motor part.SOLUTION: One embodiment of an electric pump of the invention includes: a motor part having a shaft rotatable around a center axis; a pump part which is connected to one end in an axial direction of the shaft and driven by power of the motor part to pump a fluid; and a housing which houses the motor part and the pump part. The housing is provided with: a motor chamber in which the motor part is disposed; a pump chamber in which the pump part is disposed; a supply path for causing the fluid to flow from the pump chamber to the motor chamber; and a return path for returning the fluid from the motor chamber to the pump chamber. The shaft has a hollow part which is open in the motor chamber at a first opening and is open in the pump chamber at a second opening. The pump part has: a suction port for suctioning the fluid from the outside; and a discharge port for discharging the fluid to the outside. The housing has a passage part connecting the second opening with the suction port. The return path is provided at the hollow part and the passage part.SELECTED DRAWING: Figure 1

A motor unit and a motor controller are disclosed. The motor unit has a power supply, a diode, a capacitor, and a motor controller. The motor controller has a switching circuit and a control unit. The switching circuit has a first upper switch, a first lower switch, a second upper switch, and a second lower switch. The control unit is configured to turn on the first upper switch and the second lower switch and not to turn on the first lower switch and the second upper switch. The control unit is configured to not to turn on the first upper switch and the second lower switch when an input voltage is less than a first reference voltage. The motor controller can be used to avoid an overvoltage problem.

1. Name of the design product: motor unit for electric mower. 2. Use of the design product: installed on electric mower to provide power for the mower. 3. Design points of the design product: in shape. 4. Picture or photo best indicating the design points: perspective view 1.