CN203774902U - Electric motor - Google Patents

Electric motor Download PDF

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Publication number
CN203774902U
CN203774902U CN201420091076.5U CN201420091076U CN203774902U CN 203774902 U CN203774902 U CN 203774902U CN 201420091076 U CN201420091076 U CN 201420091076U CN 203774902 U CN203774902 U CN 203774902U
Authority
CN
China
Prior art keywords
face
stator core
end cap
rear end
stator
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
CN201420091076.5U
Other languages
Chinese (zh)
Inventor
冯勇敢
高金文
于海红
王勐
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Broad Ocean EV Technology Co Ltd
Original Assignee
Broad Ocean EV Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Broad Ocean EV Technology Co Ltd filed Critical Broad Ocean EV Technology Co Ltd
Priority to CN201420091076.5U priority Critical patent/CN203774902U/en
Application granted granted Critical
Publication of CN203774902U publication Critical patent/CN203774902U/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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  • Iron Core Of Rotating Electric Machines (AREA)
  • Motor Or Generator Cooling System (AREA)

Abstract

The utility model discloses an electric motor. The electric motor comprises a rotating shaft, a rotor assembly, a stator assembly, a front end cover and a rear end cover, wherein the rotor assembly is mounted on the rotating shaft, the stator assembly is nested outside the rotor assembly, the stator assembly comprises a stator iron core and a coil winding wound on the stator iron core, and either of the front cover and the rear cover comprises a end cover body and an annular boss stretching from the outer edge of the end face of the end cover body to one side. The electric motor also comprises mounting screws, an annular flange stretches outwards from the outer edge of the end face of each annular boss, both the front end cover and the rear end cover are mounted on the two ends of the stator assembly, the annular bosses are supported on the end faces of the stator iron core, and the mounting screws penetrates through the annular flange of the front end cover and the annular flange of the rear end cover so as to fasten the front end cover and the rear end cover on the two end faces of the stator iron core. The electric motor is simple and compact in structure, excellent in heat dissipation performance, low in cost and wide in application range.

Description

A kind of motor
Technical field:
The utility model relates to a kind of motor.
Background technology:
According to the difference of radiating mode, motor can be divided into water-cooled machine, ventilated machine and machine with natural cooling at present.In the electric automobile circulation waterway of water-cooling pattern, motor is connected with gearbox, controller is connected with motor, on the casing of motor, be processed with water channel, water tank and radiator fan are placed on separately an other place (as car front bumper below etc.), fan to water tank surface directly blowing lower the temperature.Therefore the whole electric automobile circulation waterway cooling system dispersion of arranging, compact not, circulation waterway is long, take up room large, and the increase of the servicing unit such as water tank, water pump, outside water route causes cost very high.
The electric system of current employing air cooling way comprises motor, switching device, axial flow blower assembly and fan housing.Owing to having increased axial flow blower assembly and fan housing, what cause that the axial length of motor does is relatively large, and on motor case, is provided with air channel, and therefore also phase strain is large for the radial dimension of motor.The heat-sinking capability of air cooling way is limited simultaneously, efficiency is lower.
Therefore,, for the less occasion of some heat radiation pressure, machine with natural cooling is by a large amount of uses.Current machine with natural cooling comprises end cap, casing, stator module and rotor assembly.Stator module is that the motor feels hot the most serious position, motor radiating path is as follows: stator core-casing-air, is also that the heat that stator module produces is wanted first pass to casing from stator core, then is passed in surrounding air by casing.Occurred now some inorganic shell motors, inorganic shell motor comprises left end cap, stator module, fin, rotor assembly, right end cap and flabellum.This inorganic shell motor is not real inorganic shell, just casing is changed into the aluminium heat sink of good heat conductivity.Its main heat-transfer path is as follows: stator core-fin-air.Fin is fixed on the outer surface of stator core, gapped between the two at fin and stator core, can form very large contact heat resistance, actual radiating effect is undesirable, and the processing of fin installs and expends man-hour, and take again the weight of motor, reduce the operational efficiency of motor.
Summary of the invention:
The purpose of this utility model is to provide a kind of motor, this simple and compact for structure, perfect heat-dissipating, and cost is low, applied widely.
The purpose of this utility model is achieved by following technical proposals.
A kind of motor, comprise rotating shaft, rotor assembly, stator module, front end housing and rear end cap, rotor assembly is arranged in rotating shaft, stator module is nested in rotor assembly outside, described stator module comprises that stator core and coiling are arranged on the coil windings on stator core, the annular boss that described front end housing and rear end cap all comprise end cap body and stretch out toward a side from end cap body end face outer ledge, also comprise mounting screw, on the outer ledge of annular boss end face, stretch out outward annular flange, front end housing and rear end cap are arranged on respectively the two ends of stator module, annular boss is bearing on the end face of stator core, mounting screw is locked front end housing and rear end cap respectively in the both ends of the surface that are arranged on stator core through the annular flange of front end housing and the annular flange of rear end cap.
On the inside edge of annular boss end face described above, be provided with ring-shaped step, ring-shaped step is bearing on the outer ledge of stator core end face.
On ring-shaped step described above, be provided with some fixture blocks, be provided with some draw-in grooves on the outer ledge of stator core end face, fixture block is nested in draw-in groove the inside.
On the outer surface of stator core described above, be provided with some circumferential helical.
Rotor assembly described above comprises rotor core and is arranged on the rotor end plates at rotor core two ends, is provided with arc fin on the end face of rotor end plates.
On front end housing described above and the end face of rear end cap, be provided with some reinforcements, on the lateral surface of annular flange, be provided with lifting bolt.
On the outer surface of stator core described above, be provided with junction block, some binding posts are installed on junction block, the lead-out wire of coil windings stretches out outward with binding post and is electrically connected from the annular boss of rear end cap.
The utility model compared with prior art, there is following effect: 1) rotor assembly is arranged in rotating shaft, stator module is nested in rotor assembly outside, described stator module comprises that stator core and coiling are arranged on the coil windings on stator core, the annular boss that described front end housing and rear end cap all comprise end cap body and stretch out toward a side from end cap body end face outer ledge, also comprise mounting screw, on the outer ledge of annular boss end face, stretch out outward annular flange, front end housing and rear end cap are arranged on respectively the two ends of stator module, annular boss is bearing on the end face of stator core, mounting screw is locked front end housing and rear end cap respectively in the both ends of the surface that are arranged on stator core through the annular flange of front end housing and the annular flange of rear end cap, this is simple and compact for structure, the heat that stator module produces can be directly transferred in surrounding air, radiating effect ideal, applied widely, save motor case simultaneously, lower motor weight and production cost, 2) on the inside edge of annular boss end face, be provided with ring-shaped step, ring-shaped step is bearing on the outer ledge of stator core end face, on ring-shaped step, be provided with some fixture blocks, on the outer ledge of stator core end face, be provided with some draw-in grooves, fixture block is nested in draw-in groove the inside, location is simple, easy for installation efficient, 3) on the outer surface of stator core, be provided with some circumferential helical, the direct contact surface that has increased stator core and surrounding air is long-pending, and contact heat resistance is little, improves the radiating efficiency of motor entirety, 4) rotor assembly comprises rotor core and the rotor end plates that is arranged on rotor core two ends, is provided with arc fin on the end face of rotor end plates, and along with the rotation of rotor assembly, fan-shaped fin drives ambient air to flow, and improves motor radiating effect, 5) on the end face of front end housing and rear end cap, be provided with some reinforcements, both strengthened the bulk strength of end cap, improved again the radiating efficiency of motor, on the lateral surface of annular flange, be provided with lifting bolt, simple in structure, facilitate motor to install.
Brief description of the drawings:
Fig. 1 is the stereogram of the utility model motor;
Fig. 2 is the exploded view of the utility model motor;
Fig. 3 is A-A partial enlarged drawing in Fig. 2;
Fig. 4 is the vertical view of the utility model motor;
Fig. 5 is B-B cutaway view in Fig. 4.
Embodiment:
Also by reference to the accompanying drawings the utility model is described in further detail below by specific embodiment.
As shown in Figures 1 to 5, the utility model is a kind of motor, comprise rotating shaft 1, rotor assembly 2, stator module 3, front end housing 4 and rear end cap 5, rotor assembly 2 is arranged in rotating shaft 1, stator module 3 is nested in rotor assembly 2 outsides, described stator module 3 comprises that stator core 31 and coiling are arranged on the coil windings 32 on stator core 31, the annular boss 42 that described front end housing 4 and rear end cap 5 all comprise end cap body 41 and stretch out toward a side from end cap body 41 end face outer ledges, also comprise mounting screw 6, on the outer ledge of annular boss 42 end faces, stretch out outward annular flange 43, front end housing 4 and rear end cap 5 are arranged on respectively the two ends of stator module 3, annular boss 42 is bearing on the end face of stator core 31, mounting screw 6 is locked front end housing 4 and rear end cap 5 to be arranged in the both ends of the surface of stator core 31 respectively through the annular flange 43 of front end housing 4 and the annular flange 43 of rear end cap 5.On the inside edge of annular boss 42 end faces, be provided with ring-shaped step 44, ring-shaped step 44 is bearing on the outer ledge of stator core 31 end faces.On ring-shaped step 44, be provided with some fixture blocks 441, be provided with some draw-in grooves 311 on the outer ledge of stator core 31 end faces, fixture block 441 is nested in draw-in groove 311 the insides.On the outer surface of stator core 31, be provided with some circumferential helical 312, stator core 31 comprises some punching sheet units, and each punching sheet unit comprises some stator punchings stacked together, and adjacent punching sheet unit is staggered at an ang.Rotor assembly 2 comprises rotor core 21 and is arranged on the rotor end plates 22 at rotor core 21 two ends, is provided with arc fin 221 on the end face of rotor end plates 22.On the end face of front end housing 4 and rear end cap 5, be provided with some reinforcements 45, on the lateral surface of annular flange 43, be provided with lifting bolt 7.On the outer surface of stator core 31, be provided with junction block 8, some binding posts 9 are installed on junction block 8, the lead-out wire of coil windings 32 stretches out outward with binding post 9 and is electrically connected from the annular boss 42 of rear end cap 5.
The principle that the utility model is large is: front end housing 4 and rear end cap 5 are arranged on respectively the two ends of stator module 3, annular boss 42 is bearing on the end face of stator core 31, mounting screw 6 is locked front end housing 4 and rear end cap 5 to be arranged in the both ends of the surface of stator core 31 respectively through the annular flange 43 of front end housing 4 and the annular flange 43 of rear end cap 5, this simple and compact for structure, perfect heat-dissipating, cost is low, applied widely.
Above embodiment is preferred embodiments of the present invention; but embodiments of the present invention are not limited to this; other are any does not deviate from change, the modification done under Spirit Essence of the present invention and principle, substitute, combination, simplify; be equivalent substitute mode, within being included in protection scope of the present invention.

Claims (7)

1. a motor, comprise rotating shaft (1), rotor assembly (2), stator module (3), front end housing (4) and rear end cap (5), rotor assembly (2) is arranged in rotating shaft (1), stator module (3) is nested in rotor assembly (2) outside, described stator module (3) comprises that stator core (31) and coiling are arranged on the coil windings (32) on stator core (31), the annular boss (42) that described front end housing (4) and rear end cap (5) all comprise end cap body (41) and stretch out toward a side from end cap body (41) end face outer ledge, it is characterized in that: also comprise mounting screw (6), on the outer ledge of annular boss (42) end face, stretch out outward annular flange (43), front end housing (4) and rear end cap (5) are arranged on respectively the two ends of stator module (3), annular boss (42) is bearing on the end face of stator core (31), mounting screw (6) is locked front end housing (4) and rear end cap (5) to be arranged in the both ends of the surface of stator core (31) respectively through the annular flange (43) of front end housing (4) and the annular flange (43) of rear end cap (5).
2. a kind of motor according to claim 1, is characterized in that: on the inside edge of annular boss (42) end face, be provided with ring-shaped step (44), ring-shaped step (44) is bearing on the outer ledge of stator core (31) end face.
3. a kind of motor according to claim 2, it is characterized in that: on ring-shaped step (44), be provided with some fixture blocks (441), on the outer ledge of stator core (31) end face, be provided with some draw-in grooves (311), fixture block (441) is nested in draw-in groove (311) the inside.
4. according to a kind of motor described in claim 1 or 2 or 3, it is characterized in that: on the outer surface of stator core (31), be provided with some circumferential helical (312).
5. according to a kind of motor described in claim 1 or 2 or 3, it is characterized in that: described rotor assembly (2) comprises rotor core (21) and is arranged on the rotor end plates (22) at rotor core (21) two ends, is provided with arc fin (221) on the end face of rotor end plates (22).
6. according to a kind of motor described in claim 1 or 2 or 3, it is characterized in that: on the end face of front end housing (4) and rear end cap (5), be provided with some reinforcements (45), on the lateral surface of annular flange (43), be provided with lifting bolt (7).
7. according to a kind of motor described in claim 1 or 2 or 3, it is characterized in that: on the outer surface of stator core (31), be provided with junction block (8), some binding posts (9) are installed on junction block (8), and the lead-out wire of coil windings (32) stretches out outward with binding post (9) and is electrically connected from the annular boss (42) of rear end cap (5).
CN201420091076.5U 2014-02-28 2014-02-28 Electric motor Expired - Lifetime CN203774902U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420091076.5U CN203774902U (en) 2014-02-28 2014-02-28 Electric motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420091076.5U CN203774902U (en) 2014-02-28 2014-02-28 Electric motor

Publications (1)

Publication Number Publication Date
CN203774902U true CN203774902U (en) 2014-08-13

Family

ID=51292051

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201420091076.5U Expired - Lifetime CN203774902U (en) 2014-02-28 2014-02-28 Electric motor

Country Status (1)

Country Link
CN (1) CN203774902U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021027301A1 (en) * 2019-08-14 2021-02-18 上海电气风电集团股份有限公司 Stator block, stator assembly, and cooling system for stator assembly

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021027301A1 (en) * 2019-08-14 2021-02-18 上海电气风电集团股份有限公司 Stator block, stator assembly, and cooling system for stator assembly

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C14 Grant of patent or utility model
GR01 Patent grant
CX01 Expiry of patent term

Granted publication date: 20140813

CX01 Expiry of patent term