CN104979945A - Reduction gearbox and 1.2KW motor one-piece system suitable for low-speed electric car - Google Patents
Reduction gearbox and 1.2KW motor one-piece system suitable for low-speed electric car Download PDFInfo
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- CN104979945A CN104979945A CN201510345630.7A CN201510345630A CN104979945A CN 104979945 A CN104979945 A CN 104979945A CN 201510345630 A CN201510345630 A CN 201510345630A CN 104979945 A CN104979945 A CN 104979945A
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- motor
- reluctance motor
- reduction box
- reduction gearbox
- bearing
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Abstract
The invention discloses a reduction gearbox and 1.2KW motor one-piece system suitable for a low-speed electric car. The system includes a reduction gearbox and a 1.2KW permanent magnetic reluctance motor. A housing of the reduction gearbox is locked by bolts and nuts after a box cover and a box body are buckled to each other. A stator and a rotor of the permanent magnetic reluctance motor are both formed by lamination of silicon steel plates. Magnetic steels evenly distributed in a circumferential direction are embedded to the rotor. A motor shaft of the permanent magnetic reluctance motor and a power input shaft of the reduction gearbox share one shaft, and the diameter of axle of the common shaft is 12-20mm. One end of the common shaft is disposed inside the permanent magnetic reluctance motor through a bearing, and the other end of the common shaft is disposed inside the reduction gearbox through a bearing. The middle portion of the common shaft is arranged, through a bearing, in a connecting place of the permanent magnetic reluctance motor and the reduction gearbox. The split design helps to effectively avoid abnormal connection noise and connection failures caused by spline connection. One bearing is saved. The optimal performance of a system is guaranteed by matching the power of the permanent magnetic reluctance motor with the diameter of axle of the common shaft.
Description
Technical field
The present invention relates to vehicle technology field, be specifically related to a kind of for the reduction box of low-speed electronic 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 a kind of reduction box and the 1.2KW motor integral system that are applicable to low-speed electronic car, avoid connecting abnormal sound or Problem of Failure, reduce manufacturing cost, reduce overall dimensions.
In order to achieve the above object, a kind of reduction box and 1.2KW motor integral system being applicable to low-speed electronic car provided by the invention, comprise the permanent magnet reluctance motor of reduction box and 1.2KW, 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, the diameter of axle of this common axis is 12 ~ 20mm, wherein one end of 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.
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 being applicable to low-speed electronic car shown in composition graphs 1-Fig. 2 and 1.2KW motor integral system, be made up of permanent magnet reluctance motor 2 two parts of reduction box 1 and 1.2KW.
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, the diameter of axle of this common axis is 12 ~ 20mm, wherein one end of common axis is arranged in permanent magnet reluctance motor 2 by bearing, the other end is arranged in reduction box 1 by bearing, and 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.
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. one kind is applicable to reduction box and the 1.2KW motor integral system of low-speed electronic car, comprise the permanent magnet reluctance motor (2) of reduction box (1) and 1.2KW, 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, the diameter of axle of this common axis is 12 ~ 20mm, wherein one end of 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.
2. according to the reduction box and the 1.2KW motor integral system that are applicable to low-speed electronic car according to claim 1, 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 |
|---|---|---|---|
| CN201510345630.7A CN104979945A (en) | 2015-06-19 | 2015-06-19 | Reduction gearbox and 1.2KW motor one-piece system suitable for low-speed electric car |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510345630.7A CN104979945A (en) | 2015-06-19 | 2015-06-19 | Reduction gearbox and 1.2KW motor one-piece system suitable for low-speed electric car |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104979945A true CN104979945A (en) | 2015-10-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510345630.7A Pending CN104979945A (en) | 2015-06-19 | 2015-06-19 | Reduction gearbox and 1.2KW motor one-piece system suitable for low-speed electric car |
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| CN (1) | CN104979945A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08289502A (en) * | 1995-04-14 | 1996-11-01 | Meidensha Corp | Electric driving apparatus |
| CN101557141A (en) * | 2008-04-07 | 2009-10-14 | 三菱电机株式会社 | Motor for controller integrated electric power steering apparatus and electric power steering apparatus |
| CN101741158A (en) * | 2008-11-11 | 2010-06-16 | 福特全球技术公司 | Permanent magnet machine with offset pole spacing |
| CN101986518A (en) * | 2010-08-31 | 2011-03-16 | 重庆长安汽车股份有限公司 | Sealing and connecting structure for permanent magnet synchronous motor and decelerator of pure electric automobile |
| 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 |
-
2015
- 2015-06-19 CN CN201510345630.7A patent/CN104979945A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08289502A (en) * | 1995-04-14 | 1996-11-01 | Meidensha Corp | Electric driving apparatus |
| CN101557141A (en) * | 2008-04-07 | 2009-10-14 | 三菱电机株式会社 | Motor for controller integrated electric power steering apparatus and electric power steering apparatus |
| CN101741158A (en) * | 2008-11-11 | 2010-06-16 | 福特全球技术公司 | Permanent magnet machine with offset pole spacing |
| CN101986518A (en) * | 2010-08-31 | 2011-03-16 | 重庆长安汽车股份有限公司 | Sealing and connecting structure for permanent magnet synchronous motor and decelerator of pure electric automobile |
| 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 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20151014 |