CN208539671U - A kind of self-cooling motor rotor - Google Patents

A kind of self-cooling motor rotor Download PDF

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Publication number
CN208539671U
CN208539671U CN201820686664.1U CN201820686664U CN208539671U CN 208539671 U CN208539671 U CN 208539671U CN 201820686664 U CN201820686664 U CN 201820686664U CN 208539671 U CN208539671 U CN 208539671U
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CN
China
Prior art keywords
end ring
rotor
rotor end
motor
centrifugal fan
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Active
Application number
CN201820686664.1U
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Chinese (zh)
Inventor
王凯
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Moandi (Suzhou) Motor Technology Co.,Ltd.
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Individual
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Priority to CN201820686664.1U priority Critical patent/CN208539671U/en
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Abstract

The utility model proposes a kind of self-cooling motor rotors, including rotor end ring, rotor end ring is located at rotor side, it is structure as a whole with rotor, several centrifugal fans are evenly distributed on rotor end ring, the outside that centrifugal fan is located at rotor end ring is structure as a whole with rotor end ring, and centrifugation ventilation hole is offered on the rotor end ring between two neighboring centrifugal fan, and centrifugal fan and centrifugation ventilation hole match to form internal annular airflow.So that the temperature of motor stator is effectively reduced, to improve the power and power density of motor, increases application range.

Description

A kind of self-cooling motor rotor
Technical field
The utility model relates to motor and structure technique fields, and in particular to a kind of self-cooling motor rotor.
Background technique
The structure of external rotor electric machine is external rotor structure, and motor stator is wrapped in internal rotor, such motor stator It is the same without the common inner rotor motor of the image of Buddha, radiated by casing and the fin of heat dissipation, so external rotor electric machine application by To very big limitation, it can not accomplish that biggish power and power density, the volume of low-power machine are also bigger.
Therefore, in response to the above problems, the present invention proposes a kind of new technical solutions.
Utility model content
The purpose of this utility model solves the heat dissipation problem of external rotor electric machine, proposes self cooled knot when a kind of operating of rotor Structure enables the temperature of motor stator to be effectively reduced, to improve the power and power density of motor, increases and applies model It encloses.
The utility model is achieved through the following technical solutions:
A kind of self-cooling motor rotor, including rotor end ring, the rotor end ring are located at rotor side, are integrated with rotor Structure is evenly distributed with several centrifugal fans on the rotor end ring, and centrifugal fan is located at outside and the rotor of rotor end ring End ring is structure as a whole, and centrifugation ventilation hole, the centrifugation are offered on the rotor end ring between the two neighboring centrifugal fan Fan and centrifugation ventilation hole match to form internal annular airflow.
Further, the air-flow of stator interior is directed to outside and forms air-flow by the centrifugation ventilation hole of the rotor end ring It circulates.
Further, the rotor end ring and centrifugal fan are in-mould decoration or cast aluminum construction.
The beneficial effects of the present invention are:
1, motor is external rotor electric machine, and air gap radius is larger, and electromagnetic torque will be high compared to general motor, so should Motor power density with higher;
2, motor forms internal circulating current in rotor rotation, air-flow passes through stator by the special construction of rotor Internal coil effectively reduces the temperature rise of stator interior coil, solves the heat dissipation problem of high power density motor;
3, motor is external rotor electric machine, and stator dimensions are smaller, copper consumption and, corresponding copper olse consumption all less with iron It is also less with core loss, realize higher running efficiency.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model;
Fig. 2 is the working effect figure of the utility model.
Wherein: 1, motor stator coil, 2, rotor end ring, 3, casing radiating part, 4, circulating current, 5, centrifugal fan, 6, It is centrifuged ventilation hole.
Specific embodiment
The present invention is described further for explanation with reference to the accompanying drawing.
As shown in Figure 1, a kind of self-cooling motor rotor, including rotor end ring 2, rotor end ring 2 are located at rotor side, and turn Son is structure as a whole, several centrifugal fans 5 are evenly distributed on rotor end ring 2, and centrifugal fan 5 is located at the outer of rotor end ring 2 Side is structure as a whole with rotor end ring 2, and centrifugation ventilation hole 6 is offered on the rotor end ring 2 between two neighboring centrifugal fan 5, Centrifugal fan 5 and centrifugation ventilation hole 6 match to form internal annular airflow.
In the technical scheme, the air-flow of stator interior is directed to outside and forms gas by the centrifugation ventilation hole 6 of rotor end ring 2 Stream circulates, and rotor end ring 2 and centrifugal fan 5 are in-mould decoration or cast aluminum construction.
Embodiment 1
Fig. 2 is operation schematic diagram of the rotor end ring on motor, rotates motor by the structure design of rotor end ring 2 Circulating current 4 is formed after coming, circulating current 4 recycles inside motor, by motor stator coil 1 and casing radiating part 3, passes through Continuous circulating current 4 flows, and the heat of electronics stator coil 1 is being taken away through excess temperature higher electronics stator coil 1, and The transfer that heat is carried out when by casing radiating part 3 makes motor stator coil to realize effective transfer of heat 1 temperature is effectively cooled down.The structure design of rotor end ring 2 forms inside using centrifugation ventilation hole 6 and centrifugal flabellum 5 Annular airflow, for centrifugal flabellum 5 in the outside of rotor end ring, being centrifuged ventilation hole 6 can be internal when motor rotates Air-flow is guided to external (centrifugal flabellum side), and centrifugal flabellum 5 is directed to air-flow other than 5 outer circle of centrifugal flabellum by rotating, outside Air pressure increases at circle, and such air-flow will flow into rotor outer circle to the inside of rotor end ring 2, simultaneously because rotor-end due to draught head The air-flow of stator interior is constantly directed to outside by the centrifugation ventilation hole 6 on ring 2, forms the circulating current 4 of air-flow in this way.
In the present embodiment, motor is external rotor electric machine, and air gap radius is larger, and electromagnetic torque will compared to general motor Height, so motor power density with higher;Motor forms inside in rotor rotation by the special construction of rotor Circulating current, air-flow effectively reduce the temperature rise of stator interior coil by the coil of stator interior, solve high power density electricity The heat dissipation problem of machine;Motor is external rotor electric machine, and stator dimensions are smaller, copper consumption and, corresponding motor copper all less with iron Loss and core loss are also less, realize higher running efficiency.
The above-mentioned embodiments merely express the embodiments of the present invention, and the description thereof is more specific and detailed, but simultaneously Therefore it cannot be interpreted as that a limitation on the scope of the patent of the present invention.It should be pointed out that for the ordinary skill of this field For personnel, without departing from the concept of the premise utility, various modifications and improvements can be made, these belong to this The protection scope of utility model.Therefore, the scope of protection shall be subject to the appended claims for the utility model patent.

Claims (3)

1. a kind of self-cooling motor rotor, including rotor end ring, it is characterised in that: the rotor end ring is located at rotor side, with Rotor is structure as a whole, several centrifugal fans are evenly distributed on the rotor end ring, and centrifugal fan is located at rotor end ring Outside is structure as a whole with rotor end ring, and centrifugation ventilation is offered on the rotor end ring between the two neighboring centrifugal fan Hole, the centrifugal fan and centrifugation ventilation hole match to form internal annular airflow.
2. a kind of self-cooling motor rotor according to claim 1, it is characterised in that: the centrifugation ventilation hole of the rotor end ring The air-flow of stator interior is directed to outside and forms circulating for air-flow.
3. a kind of self-cooling motor rotor according to claim 1, it is characterised in that: the rotor end ring and centrifugal fan are In-mould decoration or cast aluminum construction.
CN201820686664.1U 2018-05-09 2018-05-09 A kind of self-cooling motor rotor Active CN208539671U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201820686664.1U CN208539671U (en) 2018-05-09 2018-05-09 A kind of self-cooling motor rotor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201820686664.1U CN208539671U (en) 2018-05-09 2018-05-09 A kind of self-cooling motor rotor

Publications (1)

Publication Number Publication Date
CN208539671U true CN208539671U (en) 2019-02-22

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201820686664.1U Active CN208539671U (en) 2018-05-09 2018-05-09 A kind of self-cooling motor rotor

Country Status (1)

Country Link
CN (1) CN208539671U (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110729834A (en) * 2019-11-15 2020-01-24 合肥巨一动力系统有限公司 Air-cooled rotor structure of permanent magnet synchronous motor
CN113965019A (en) * 2021-10-25 2022-01-21 中车永济电机有限公司 Rotor heat radiation structure of sealed motor
CN115043299A (en) * 2022-06-30 2022-09-13 日立电梯电机(广州)有限公司 Traction machine and elevator

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110729834A (en) * 2019-11-15 2020-01-24 合肥巨一动力系统有限公司 Air-cooled rotor structure of permanent magnet synchronous motor
CN113965019A (en) * 2021-10-25 2022-01-21 中车永济电机有限公司 Rotor heat radiation structure of sealed motor
CN113965019B (en) * 2021-10-25 2024-01-23 中车永济电机有限公司 Rotor heat radiation structure of sealed motor
CN115043299A (en) * 2022-06-30 2022-09-13 日立电梯电机(广州)有限公司 Traction machine and elevator
CN115043299B (en) * 2022-06-30 2023-11-10 日立电梯电机(广州)有限公司 Traction machine and elevator

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Address after: 4th Floor, Building No. 1-1, No. 82 Beijing East Road, Taicang City, Suzhou City, Jiangsu Province 215400

Patentee after: Moandi (Suzhou) Motor Technology Co.,Ltd.

Address before: Building 1, East, No. 88, Beijing East Road, Taicang City, Suzhou City, Jiangsu Province, 215400

Patentee before: DIBAISHI MOTOR TECHNOLOGY (SUZHOU) CO.,LTD.