Gree Electric Appliances, Inc. of Zhuhai

Gree Green Refrigeration Technology Center Co., Ltd. of Zhuhai

Green Refrigeration Equipment Engineering Research Center of Zhuhai Gree Co., Ltd.

Electric Power Research Institute, China Southern Power Grid

Farouk Systems, Inc.

Koninklijke Philips Corporation N.v.

Gree Green Refrigeration Technology Center Co.,ltd

Yong Xiao

Yusheng Hu

Bin Chen

Tong Tong

Jinfei Shi

Suhua Lu

Hui Huang

Xia Li

Dongsuo Chen

Min Wang

Wenming Zhang

Huajie Chen

Zeyin Mi

Xueying Zeng

Jing Wang

Mingzhu Dong

Hui Zhang

Quanfeng Li

Qinhong Yu

Yun Zhao

Zhidong Zhang

Man Wu

Ziwen Cai

Chao Cui

Jianming Tan

Bo Zhou

Hui Sun

Shengyu Xiao

Shaoxuan Zhu

Lin Tang

Mianjia Wei

Huan Chang

Haolin Wang

Yuxin Lu

Weibin Lin

Bin Qian

Pengqian Gui

Jiating Ding

The present application provides a rotor assembly and a self-starting permanent magnet synchronous reluctance motor. The rotor assembly includes a rotor core, wherein on a cross section of the rotor core, the rotor core is provided with slit slots, q-axis squirrel cage slots and permanent magnets, the q-axis squirrel cage slots are disposed at two ends of the slit slots, the permanent magnets are disposed in the slit slots, the permanent magnet located at the innermost layer in a d-axis direction is at least asymmetrically disposed relative to a d-axis, and an offset direction of the permanent magnet located at the innermost layer relative to the d axis is consistent with a rotation direction of the rotor assembly.

Rotor assembly and self-starting permanent magnet synchronous reluctance motor

A blockchain-based interconnected vehicle authentication system and method. During message signature process, a registered vehicle verifies a driver, and broadcasts a message. During a message verification process, a registered vehicle checks the message authentication code from a received message based on the system key, and verifies the message based on a public key of a sender of the message. During a block generation and verification process, the first local trust authority broadcasts a block, and share the block to the second local trust authorities after the block passes verification. During a block confirmation process, second local trust authority makes confirmation with regard to the block and send a confirmation result to the root trust authority, to allow the root trust authority link the block into the blockchain in response to receiving confirmation results from second local trust authorities in a quantity exceeding a predetermined number.

Blockchain-based interconnected vehicle authentication system and method

Provided is an electric power safety authentication device, including a front casing, a rear casing, a sealing element, and a fastener connection structure. A sealing groove that matches the sealing element is provided at connection between the front and rear casings. The fastener connection structure comprises a first connector, a second connector, a first fastener, a second fastener, a first spring, and second springs. The first fastener is arranged on the front casing, and the second fastener is arranged on the rear casing. The first fastener and the second fastener each comprise a first clamp and a second clamp. The first connector is fit in and fastened to the first fastener, and the second connector is fit in and fastened to the second fastener.

Electric energy safety authentication apparatus

Disclosed are a rotor assembly and an alternating-pole motor. The rotor assembly includes a rotor core including permanent magnetic poles and alternating poles that are arranged alternately in a circumferential direction, each permanent magnetic pole includes a mounting groove, a permanent magnet is mounted in the mounting groove, polarities of the permanent magnets facing an outer periphery of the rotor core are the same, both ends of the mounting groove are respectively provided with a second air slot, the second air slot includes a slot body and a first extension part and a second extension part that are extended from the slot body to a center line of a magnetic pole, and the first extension part and the second extension part are sequentially disposed to form a stepped slot with a decreasing radial thickness.

Rotor assembly and alternating-pole motor

The present disclosure provides a rotor structure, an electric motor and a rotor manufacturing method. The rotor structure includes a plurality of rotor sheets () and a rotating shaft. The rotor sheets () are stacked in sequence along an axial direction of the rotor structure. Each of the rotor sheets () is provided with a shaft hole (), a first slot (), and first filling slots () at both ends of the first slot (). The first slot () extends in a direction of a direct axis () of the rotor structure and includes slot sections () at opposite sides of the shaft hole (). The rotating shaft passes through the shaft hole () of the plurality of rotor sheets (). The first slot (), the first filling slots () and the rotating shaft form a first flux barrier layer ().

Rotor structure, electric motor and rotor manufacturing method

A single-phase permanent magnet synchronous motor and dust collector. The single-phase permanent magnet synchronous motor includes a plurality of stator teeth, the plurality of stator teeth include at least: a first-type and second-type stator tooth; the first-type and second-type stator teeth enclose an annular working cavity for accommodating a rotor part, where the size of a central angle corresponding to a first contour line of an end face of the first-type stator tooth facing the rotor part is different from the size of a central angle corresponding to a second contour line of an end face of the second-type stator tooth facing the rotor part. The motor has a significantly reduced cogging torque, a greatly reduced torque ripple, and an obviously increased motor output torque. The single-phase permanent magnet synchronous motor is small in size, light in weight, simple in structure, convenient for large-scale manufacture and low in manufacturing cost.

Single-phase permanent magnet synchronous motor and dust collector

A tangential motor, a tangential motor rotor and a rotor core thereof are provided. The rotor core includes a rotor body and magnetic steel grooves provided on the rotor body 2N magnetic isolation holes are provided in a rotor magnetic pole between every two adjacent magnetic steel grooves. The 2N magnetic isolation holes are symmetrically provided at two sides of a magnetic pole center line of the rotor magnetic pole. A width of each of the magnetic isolation holes increases from a circle center of the rotor body to an outer side of the rotor body. Outer side hole surfaces, close to the outer side of the rotor body, of the magnetic isolation holes are arc-shaped surfaces which are concentrically arranged with the rotor body. The rotor core is able to reduce the vibration noise of the motor and increase the efficiency of the motor.

Tangential motor, tangential motor rotor and rotor core of tangential motor rotor

The present disclosure provides a direct starting synchronous reluctance motor rotor, and a motor. The direct starting synchronous reluctance motor rotor comprises: a rotor core provided with a plurality of slit grooves, two filling grooves are respectively disposed at two ends of each of the slit grooves to form a magnetic barrier layer, a first end of the filling groove being disposed adjacent to the slit groove, a second end of the filling groove being disposed to be extended outwards an outside of the rotor core, a beveled edge is disposed on the second end of at least one of the filling grooves away from a d-axis of the rotor core, so that a d-axis flux of the rotor core will not suddenly change when entering a stator along a channel formed at the beveled edge. With this arrangement, a reluctance torque ripple of the motor can be reduced, thereby reducing generated vibration noise, increasing a d-axis inductance and a flux difference between the d-axis and a q-axis, generating a greater reluctance torque, increasing an output torque of the motor with the rotor, and improving a motor efficiency.

Direct starting synchronous reluctance motor rotor and motor

Disclosed are a rotor and a permanent magnet motor. The rotor includes a rotor core, at least two first permanent magnets and at least two second permanent magnets. A coercivity of each first permanent magnet is different from a coercivity of each second permanent magnet, the at least two first permanent magnets and the at least two second permanent magnets are arranged in an axial direction in magnetic steel slots of the rotor core. One of the first permanent magnets and one of the second permanent magnets are arranged to be connected in series in a radial direction of the rotor core in one slot to form a permanent magnet pole. A consequent pole is formed between every two adjacent permanent magnet poles, and the permanent magnet pole forms a magnetic circuit passing through the consequent pole.

Rotor and permanent magnet motor

The present disclosure is related to a self-starting synchronous reluctance motor rotor, a motor and a compressor. The self-starting synchronous reluctance motor rotor includes a rotor core; the rotor core is provided with a plurality of slit grooves; both ends of each of the slit grooves are respectively provided with a filled groove; a first end of the filled groove is provided adjacent to each slit groove, and a second end of the filled groove extends outwards parallel to the d-axis of the rotor core; the second end of the filled groove is provided with at least one bevel edge, so that when the d-axis magnetic flux of the rotor core enters a stator along channels formed at the bevel edges, no abrupt change occurs to the magnetic flux.

Self-starting synchronous reluctance motor rotor, motor, and compressor

A motor rotor structure including a rotor core. Multiple first permanent magnet slots are disposed in the rotor core in a circumferential direction. At least one second permanent magnet slot is disposed between every two adjacent first permanent magnet slots; each of the first permanent magnet slots and an adjacent second permanent magnet slot thereof are spaced a preset distance apart. Between two kinds of permanent magnets having different coercivities, a first kind of permanent magnet is mounted in each of the first permanent magnet slots and a second kind of permanent magnet is mounted in the second permanent magnet slot. When identical polarities of adjacent two kinds of permanent magnets having different coercivities face each other, the rotor core is in a more-magnetic-pole state. When contrary polarities of adjacent two kinds of permanent magnets having different coercivities face each other, the rotor core is in a fewer-magnetic-pole state.

Motor rotor structure and permanent magnet motor

The present disclosure relates to a rotor assembly and a consequent-pole motor, and the rotor assembly includes an iron core and a plurality of permanent magnets. The iron core is provided with a plurality of mounting grooves for accommodating permanent magnets distributed along a circumferential direction of the iron core. One side of each of the mounting grooves adjacent to an end of an outer edge of the iron core is provided with a second air slot which is located in a consequent-pole region. The second air slot is communicated with the mounting groove. The second air slot can, on one hand, prevent magnetic lines emitted from the permanent magnet from short-circuiting through an end of the permanent magnet, so as to decrease the magnetic flux leakage, and on the other hand, adjust an orientation of the magnetic lines in the consequent-pole region, so as to weaken torque fluctuation.

Rotor assembly and consequent-pole motor

The present disclosure provides a direct starting synchronous reluctance motor rotor, a motor and a rotor manufacturing method. The direct starting synchronous reluctance motor rotor comprises: a rotor core provided with a plurality of slit grooves, two ends of each of the slit grooves being provided with a filling groove respectively to form a magnetic barrier layer, a first end of the filling groove being disposed adjacent to the slit groove, a second end of the filling groove being extended towards an outside of the rotor core, and an outer peripheral surface of the rotor core being provided with a notch communicated with the second end of the filling groove. By disposing notches and bevels at the end of the filling grooves, a reluctance torque of the motor can be increased, and then torque ripples generated by rotor and stator slots can be weakened mutually, thereby achieving the purpose of reducing the torque ripple of the motor and vibration noise of the motor, while improving an efficiency of the motor with the rotor and a starting capability of the motor.

Direct starting synchronous reluctance motor rotor, motor and rotor manufacturing method

A permanent magnet auxiliary synchronous reluctance motor includes a stator portion and a rotor portion. The stator portion includes a stator core and a winding embedded in the stator core. The stator core is provided with a stator tooth and a stator slot. The rotor portion is provided inside the stator portion; a rotor body of the rotor portion is provided with a plurality of permanent magnet slot groups which are evenly arranged along a circumferential direction of the rotor body; each of the permanent magnet slot groups is provided with multiple layers of permanent magnet slots; a distance between end portions of adjacent permanent magnet slots between adjacent permanent magnet slot groups is less than or equal to a width of a stator tooth boot of the stator tooth, and the number of slots per pole and per phase of the motor is two or three.

Permanent magnet auxiliary synchronous reluctance motor and electric vehicle provided with same

The present disclosure provides a rotor assembly and a motor. The rotor assembly includes a rotor body; the rotor body includes a plurality of magnetic poles centered on an axis of the rotor body and uniformly arranged along a circumferential direction of the rotor body; each of the magnetic poles includes a filling slot provided therein with a conductive and magnetic isolation material, the filling slots of the plurality of magnetic poles are orderly arranged along the circumferential direction of the rotor body; two ends of each of the filling slots along the circumferential direction of the rotor body have a first sidewall and a second sidewall respectively; the first sidewall of each of the filling slots and the second sidewall of the adjacent filling slot are parallel to each other, and together form a magnetic flux channel parallel to the q-axis.

Rotor assembly and motor

Growing community of inventors

Guangdong, China

Yong Xiao