CN104979946A - Speed reduction box and motor one-piece system specially for electric vehicle - Google Patents
Speed reduction box and motor one-piece system specially for electric vehicle Download PDFInfo
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- CN104979946A CN104979946A CN201510345636.4A CN201510345636A CN104979946A CN 104979946 A CN104979946 A CN 104979946A CN 201510345636 A CN201510345636 A CN 201510345636A CN 104979946 A CN104979946 A CN 104979946A
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Abstract
The invention discloses a speed reduction box and motor one-piece system specially for an electric vehicle. The system includes a speed reduction box and a permanent magnetic reluctance motor. After a housing of the speed reduction box is formed in a way that a box cover is buckled to a box body, then the housing is locked by bolts and nuts. A stator and a rotor of the permanent magnetic reluctance motor are both formed by lamination of silicon steel plates. Magnetic steels evenly arranged in a circumferential manner are embedded to the rotor. A motor shaft of the permanent magnetic reluctance motor and a power input shaft of the speed reduction box share one shaft, one end of the shared shaft is arranged inside the permanent magnetic reluctance motor through a bearing, and the other end of the shared shaft is arranged in the speed reduction box through a bearing. The middle of the shared shaft is arranged in a place of connection between the permanent magnetic reluctance motor and the speed reduction box through a bearing. A matching relationship between the power of the permanent magnetic reluctance motor and the diameter of the shared shaft is determined. Connection abnormal sound and failures caused by spline connections are effectively avoided since a split design is adopted. One bearing is saved. The optimal performance of the system is guaranteed by matching the power of the permanent magnetic reluctance motor with the diameter of the shared shaft.
Description
Technical field
The present invention relates to vehicle technology field, be specifically related to a kind of for the reduction box of electric motor car and the integrated system of motor.
Background technology
Electric motor car is using electricity as driving power, and automobile touch oil provides power.Basic demand for electric vehicle motor performance is: enough large starting torque, the requirement starting, accelerate, climb, frequently open, stop fast; The speed adjustable range of motor is little; Specific power large (specific power is defined as the maximum power that unit mass can provide), with maximum power timing; Torque response characteristic fast, mildly can control fast to drive and brake torque in various vehicle speed range, require that motor controllability is high, stable state accuracy and dynamic characteristic good; There is good environmental suitability, can reliably work under different operating conditions; Safeguard simple, work noise is low.Basic demand for decelerator performance is: reasonable in design, and drive system efficiency is high, runs sound little, and the response time is fast, can reliability service under different transmission rotating speeds.
Existing motor is arranged on outside reduction box, and the motor shaft of motor and the power input shaft of reduction box are arranged separately, and motor shaft drives the power input shaft of reduction box to rotate by spline, shaft coupling, easily causes and connects abnormal sound or Problem of Failure.In addition, the power input shaft of motor shaft, reduction box needs outfit two bearings respectively, adds manufacturing cost, increases overall dimensions.
Summary of the invention
The object of this invention is to provide the special reduction box of a kind of electric motor car and motor integral system, avoid connecting abnormal sound or Problem of Failure, reduce manufacturing cost, reduce overall dimensions.
In order to achieve the above object, the reduction box that a kind of electric motor car provided by the invention is special and motor integral system, comprise reduction box and permanent magnet reluctance motor, the shell of described reduction box is locked together by bolt and nut by after case lid and casing fastening, it is characterized in that: determining of described permanent magnet reluctance motor, rotor all adopts silicon steel plate packing to form, and on rotor, be embedded with circumferentially uniform magnet steel, the motor shaft of permanent magnet reluctance motor and the power input shaft of reduction box share same axis, wherein one end of this common axis is arranged in permanent magnet reluctance motor by bearing, the other end is arranged in reduction box by bearing, the middle part of common axis is arranged on the cohesive position place of permanent magnet reluctance motor and reduction box by bearing, permanent-magnet reluctance electrical acc power uses the diameter of axle matching relationship of axle as follows together,
When permanent-magnet reluctance electrical acc power is 1.2KW, the diameter of axle of common axis is 12 ~ 20mm;
When permanent-magnet reluctance electrical acc power is 2KW, the diameter of axle of common axis is 15 ~ 20mm;
When permanent-magnet reluctance electrical acc power is 3KW, the diameter of axle of common axis is 18 ~ 25mm;
When permanent-magnet reluctance electrical acc power is 5KW, the diameter of axle of common axis is 25 ~ 30mm;
When permanent-magnet reluctance electrical acc power is 7.5KW, the diameter of axle of common axis is 26 ~ 35mm;
When permanent-magnet reluctance electrical acc power is 8KW, the diameter of axle of common axis is 30 ~ 42mm;
When permanent-magnet reluctance electrical acc power is 9KW, the diameter of axle of common axis is 32 ~ 45mm;
When permanent-magnet reluctance electrical acc power is 10KW, the diameter of axle of common axis is 35 ~ 48mm;
When permanent-magnet reluctance electrical acc power is 12KW, the diameter of axle of common axis is 35 ~ 48mm;
When permanent-magnet reluctance electrical acc power is 15KW, the diameter of axle of common axis is 40 ~ 50mm;
When permanent-magnet reluctance electrical acc power is 18KW, the diameter of axle of common axis is 40 ~ 50mm;
When permanent-magnet reluctance electrical acc power is 20KW, the diameter of axle of common axis is 45 ~ 55mm;
When permanent-magnet reluctance electrical acc power is 22KW, the diameter of axle of common axis is 48 ~ 60mm;
When permanent-magnet reluctance electrical acc power is 25KW, the diameter of axle of common axis is 48 ~ 60mm;
When permanent-magnet reluctance electrical acc power is 30KW, the diameter of axle of common axis is 48 ~ 60mm;
When permanent-magnet reluctance electrical acc power is 45KW, the diameter of axle of common axis is 50 ~ 60mm;
When permanent-magnet reluctance electrical acc power is 50KW, the diameter of axle of common axis is 50 ~ 60mm;
When permanent-magnet reluctance electrical acc power is 60KW, the diameter of axle of common axis is 55 ~ 65mm;
When permanent-magnet reluctance electrical acc power is 75KW, the diameter of axle of common axis is 55 ~ 65mm;
When permanent-magnet reluctance electrical acc power is 80KW, the diameter of axle of common axis is 55 ~ 65mm;
When permanent-magnet reluctance electrical acc power is 90KW, the diameter of axle of common axis is 55 ~ 65mm;
When permanent-magnet reluctance electrical acc power is 100KW, the diameter of axle of common axis is 55 ~ 70mm;
When permanent-magnet reluctance electrical acc power is 120KW, the diameter of axle of common axis is 55 ~ 70mm;
When permanent-magnet reluctance electrical acc power is 150KW, the diameter of axle of common axis is 60 ~ 80mm.
Be preferably, described permanent magnet reluctance motor is positioned at the outer side near case lid of reduction box, and the clutch end of reduction box is positioned at the side near casing.The clutch end of permanent magnet reluctance motor and reduction box staggers and arranges, and is convenient to Appropriate application space structure and carries out mounting arrangements.
Beneficial effect of the present invention:
(1) drive motors adopts permanent magnet reluctance motor, the stator and rotor of this motor are all adopted and form with silicon steel plate packing, and on rotor, be embedded with circumferentially uniform magnet steel, specific power large (specific power is defined as the maximum power that unit mass can provide), with maximum power timing, (1 ~ 1.25) more than kw/kg generally should be reached; Torque response characteristic fast, can mildly control fast in various vehicle speed range drive and brake torque, motor controllability is high, stable state accuracy and dynamic characteristic good; There is good environmental suitability, can reliably work under different operating conditions; Safeguard simple, work noise is low; This motor has enough large starting torque, applies it in electric motor car, is satisfied with the requirement of quick startup, acceleration, climbing, frequent start-stop.
(2) motor shaft of permanent magnet reluctance motor and the power input shaft Integral design of reduction box, the connection abnormal sound adopting splined to bring after effectively evading split design and inefficacy; Save a bearing, reduce manufacturing cost, and reduce overall dimensions, make overall structure more compact; And the diameter of axle matching relationship of axle is used together by controlling permanent-magnet reluctance electrical acc power, ensure system works best performance;
(3) for electric motor car, the diameter matches relation of drive motors power and reduction box power input shaft is extremely important, directly have influence on the performance of electric motor car, the present invention adopts the version of the motor shaft of permanent magnet reluctance motor and the power input shaft Integral design of reduction box first in electric motor car, the basis of traditional structure there occurs subversive change, its permanent-magnet reluctance electrical acc power just needs to redefine with the diameter of axle matching relationship of axle together, if the diameter of axle crosses conference increase manufacturing cost, product weight and overall dimension, the diameter of axle too small useful life reducing again product, permanent-magnet reluctance electrical acc power uses the diameter of axle matching relationship of axle most important together.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is the stereogram of Fig. 1.
Fig. 3 is permanent magnet reluctance motor rotor lamination figure.
Embodiment
Below by embodiment, and by reference to the accompanying drawings, technical scheme of the present invention is further described in detail:
The reduction box that electric motor car shown in composition graphs 1-Fig. 2 is special and motor integral system, be made up of reduction box 1 and permanent magnet reluctance motor 2 two parts.
The shell of reduction box 1 is locked together by bolt and nut by after case lid 1a and casing 1b fastening.The stator and rotor of permanent magnet reluctance motor 2 all adopt silicon steel plate packing to form, and as shown in Figure 3, rotor are embedded with circumferentially uniform magnet steel.The torque of permanent magnet reluctance motor 2 is reluctance torque and magnet torque sum, and electric efficiency can reach 95%.
The motor shaft of permanent magnet reluctance motor 2 and the power input shaft of reduction box 1 share same axis, wherein one end of this common axis is arranged in permanent magnet reluctance motor 2 by bearing, the other end is arranged in reduction box 1 by bearing, the middle part of common axis is arranged on the cohesive position place of permanent magnet reluctance motor 2 and reduction box 1 by bearing, the diameter of axle matching relationship of permanent magnet reluctance motor 2 power and common axis is as follows:
When permanent magnet reluctance motor 2 power is 1.2KW, the diameter of axle of common axis is 12 ~ 20mm;
When permanent magnet reluctance motor 2 power is 2KW, the diameter of axle of common axis is 15 ~ 20mm;
When permanent magnet reluctance motor 2 power is 3KW, the diameter of axle of common axis is 18 ~ 25mm;
When permanent magnet reluctance motor 2 power is 5KW, the diameter of axle of common axis is 25 ~ 30mm;
When permanent magnet reluctance motor 2 power is 7.5KW, the diameter of axle of common axis is 26 ~ 35mm;
When permanent magnet reluctance motor 2 power is 8KW, the diameter of axle of common axis is 30 ~ 42mm;
When permanent magnet reluctance motor 2 power is 9KW, the diameter of axle of common axis is 32 ~ 45mm;
When permanent magnet reluctance motor 2 power is 10KW, the diameter of axle of common axis is 35 ~ 48mm;
When permanent magnet reluctance motor 2 power is 12KW, the diameter of axle of common axis is 35 ~ 48mm;
When permanent magnet reluctance motor 2 power is 15KW, the diameter of axle of common axis is 40 ~ 50mm;
When permanent magnet reluctance motor 2 power is 18KW, the diameter of axle of common axis is 40 ~ 50mm;
When permanent magnet reluctance motor 2 power is 20KW, the diameter of axle of common axis is 45 ~ 55mm;
When permanent magnet reluctance motor 2 power is 22KW, the diameter of axle of common axis is 48 ~ 60mm;
When permanent magnet reluctance motor 2 power is 25KW, the diameter of axle of common axis is 48 ~ 60mm;
When permanent magnet reluctance motor 2 power is 30KW, the diameter of axle of common axis is 48 ~ 60mm;
When permanent magnet reluctance motor 2 power is 45KW, the diameter of axle of common axis is 50 ~ 60mm;
When permanent magnet reluctance motor 2 power is 50KW, the diameter of axle of common axis is 50 ~ 60mm;
When permanent magnet reluctance motor 2 power is 60KW, the diameter of axle of common axis is 55 ~ 65mm;
When permanent magnet reluctance motor 2 power is 75KW, the diameter of axle of common axis is 55 ~ 65mm;
When permanent magnet reluctance motor 2 power is 80KW, the diameter of axle of common axis is 55 ~ 65mm;
When permanent magnet reluctance motor 2 power is 90KW, the diameter of axle of common axis is 55 ~ 65mm;
When permanent magnet reluctance motor 2 power is 100KW, the diameter of axle of common axis is 55 ~ 70mm;
When permanent magnet reluctance motor 2 power is 120KW, the diameter of axle of common axis is 55 ~ 70mm;
When permanent magnet reluctance motor 2 power is 150KW, the diameter of axle of common axis is 60 ~ 80mm.
Preferably, permanent magnet reluctance motor 2 is positioned at the outer side near case lid 1a of reduction box 1, and the clutch end of reduction box 1 is positioned at the side near casing 1b.
Claims (2)
1. the reduction box that an electric motor car is special and motor integral system, comprise reduction box (1) and permanent magnet reluctance motor (2), the shell of described reduction box (1) is locked together by bolt and nut by after case lid (1a) and casing (1b) fastening, it is characterized in that: determining of described permanent magnet reluctance motor (2), rotor all adopts silicon steel plate packing to form, and on rotor, be embedded with circumferentially uniform magnet steel, the motor shaft of permanent magnet reluctance motor (2) and the power input shaft of reduction box (1) share same axis, wherein one end of this common axis is arranged in permanent magnet reluctance motor (2) by bearing, the other end is arranged in reduction box (1) by bearing, the middle part of common axis is arranged on the cohesive position place of permanent magnet reluctance motor (2) and reduction box (1) by bearing, the diameter of axle matching relationship of permanent magnet reluctance motor (2) power and common axis is as follows,
When permanent magnet reluctance motor (2) power is 1.2KW, the diameter of axle of common axis is 12 ~ 20mm;
When permanent magnet reluctance motor (2) power is 2KW, the diameter of axle of common axis is 15 ~ 20mm;
When permanent magnet reluctance motor (2) power is 3KW, the diameter of axle of common axis is 18 ~ 25mm;
When permanent magnet reluctance motor (2) power is 5KW, the diameter of axle of common axis is 25 ~ 30mm;
When permanent magnet reluctance motor (2) power is 7.5KW, the diameter of axle of common axis is 26 ~ 35mm;
When permanent magnet reluctance motor (2) power is 8KW, the diameter of axle of common axis is 30 ~ 42mm;
When permanent magnet reluctance motor (2) power is 9KW, the diameter of axle of common axis is 32 ~ 45mm;
When permanent magnet reluctance motor (2) power is 10KW, the diameter of axle of common axis is 35 ~ 48mm;
When permanent magnet reluctance motor (2) power is 12KW, the diameter of axle of common axis is 35 ~ 48mm;
When permanent magnet reluctance motor (2) power is 15KW, the diameter of axle of common axis is 40 ~ 50mm;
When permanent magnet reluctance motor (2) power is 18KW, the diameter of axle of common axis is 40 ~ 50mm;
When permanent magnet reluctance motor (2) power is 20KW, the diameter of axle of common axis is 45 ~ 55mm;
When permanent magnet reluctance motor (2) power is 22KW, the diameter of axle of common axis is 48 ~ 60mm;
When permanent magnet reluctance motor (2) power is 25KW, the diameter of axle of common axis is 48 ~ 60mm;
When permanent magnet reluctance motor (2) power is 30KW, the diameter of axle of common axis is 48 ~ 60mm;
When permanent magnet reluctance motor (2) power is 45KW, the diameter of axle of common axis is 50 ~ 60mm;
When permanent magnet reluctance motor (2) power is 50KW, the diameter of axle of common axis is 50 ~ 60mm;
When permanent magnet reluctance motor (2) power is 60KW, the diameter of axle of common axis is 55 ~ 65mm;
When permanent magnet reluctance motor (2) power is 75KW, the diameter of axle of common axis is 55 ~ 65mm;
When permanent magnet reluctance motor (2) power is 80KW, the diameter of axle of common axis is 55 ~ 65mm;
When permanent magnet reluctance motor (2) power is 90KW, the diameter of axle of common axis is 55 ~ 65mm;
When permanent magnet reluctance motor (2) power is 100KW, the diameter of axle of common axis is 55 ~ 70mm;
When permanent magnet reluctance motor (2) power is 120KW, the diameter of axle of common axis is 55 ~ 70mm;
When permanent magnet reluctance motor (2) power is 150KW, the diameter of axle of common axis is 60 ~ 80mm.
2. according to the special reduction box of electric motor car according to claim 1 and motor integral system, it is characterized in that: described permanent magnet reluctance motor (2) is positioned at reduction box (1) outward near the side of case lid (1a), the clutch end of reduction box (1) is positioned at the side near casing (1b).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510345636.4A CN104979946A (en) | 2015-06-19 | 2015-06-19 | Speed reduction box and motor one-piece system specially for electric vehicle |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510345636.4A CN104979946A (en) | 2015-06-19 | 2015-06-19 | Speed reduction box and motor one-piece system specially for electric vehicle |
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| CN104979946A true CN104979946A (en) | 2015-10-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510345636.4A Pending CN104979946A (en) | 2015-06-19 | 2015-06-19 | Speed reduction box and motor one-piece system specially for electric vehicle |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201777109U (en) * | 2010-08-12 | 2011-03-30 | 上海汽车工业(集团)总公司 | Integrated motor-driven system |
| CN203225626U (en) * | 2013-05-07 | 2013-10-02 | 石家庄华燕交通科技有限公司 | Special motor speed reducer for automobile brake test bed |
| CN104377881A (en) * | 2014-11-14 | 2015-02-25 | 中国第一汽车股份有限公司 | Integrated driving device for new energy vehicle |
| CN204886535U (en) * | 2015-06-19 | 2015-12-16 | 重庆钟华机械有限责任公司 | Reducing gear box and integrative system of driving motor for electric motor car |
-
2015
- 2015-06-19 CN CN201510345636.4A patent/CN104979946A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201777109U (en) * | 2010-08-12 | 2011-03-30 | 上海汽车工业(集团)总公司 | Integrated motor-driven system |
| CN203225626U (en) * | 2013-05-07 | 2013-10-02 | 石家庄华燕交通科技有限公司 | Special motor speed reducer for automobile brake test bed |
| CN104377881A (en) * | 2014-11-14 | 2015-02-25 | 中国第一汽车股份有限公司 | Integrated driving device for new energy vehicle |
| CN204886535U (en) * | 2015-06-19 | 2015-12-16 | 重庆钟华机械有限责任公司 | Reducing gear box and integrative system of driving motor for electric motor car |
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Application publication date: 20151014 |
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