CN103692892A - Power device for direct-driving axle of electric vehicle - Google Patents

Power device for direct-driving axle of electric vehicle Download PDF

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Publication number
CN103692892A
CN103692892A CN201310670623.5A CN201310670623A CN103692892A CN 103692892 A CN103692892 A CN 103692892A CN 201310670623 A CN201310670623 A CN 201310670623A CN 103692892 A CN103692892 A CN 103692892A
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China
Prior art keywords
motor
end cap
rotor
axle
diff
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Pending
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CN201310670623.5A
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Chinese (zh)
Inventor
张�杰
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Tai'an Kernel Electronic Development Co., Ltd.
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张�杰
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Priority to CN201310670623.5A priority Critical patent/CN103692892A/en
Publication of CN103692892A publication Critical patent/CN103692892A/en
Pending legal-status Critical Current

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Abstract

The invention discloses a power device for a direct-driving axle of an electric vehicle. The power device comprises a motor shell, a motor left end cover and a motor right end cover, wherein the motor left end cover and the motor right end cover are respectively fixed on the left end and the right end of the motor shell, a motor stator winding is arranged in the motor shell, a motor rotor winding is arranged in the motor stator winding, a differential mechanism left shell and a differential mechanism right shell are fixed in the motor rotor winding, a differential mechanism is arranged in the differential mechanism left shell and the differential mechanism right shell, the left end and the right end of the differential mechanism are respectively provided with an axle half-shaft connection port, and the two axle half-shaft connection ports are respectively connected with an axle left half shaft and an axle right half shaft. The power device has the beneficial effects that (1) the structure is simple; (2) the torque of the entire power device can be improved; (3) the power can be more stably outputted; (4) and the motor left end cover, a left bearing end cover and the motor right end cover and a right bearing end cover can be firmly fixed together.

Description

A kind of battery-driven car bridge engine installation of directly driving
Technical field
The present invention relates to a kind of battery-driven car, particularly a kind of battery-driven car bridge engine installation of directly driving.
Background technology
Existing driving device for electric vehicle, generally comprise common DC motor, transmission shaft, reductor and diff etc., after transmission shaft is connected with the main shaft of motor, also want connection reducer and diff, because retarder and diff are all arranged on the outside of motor, so not only noise is large, and the conversion ratio of energy is low.
In addition, the actuating device that also has a kind of version, the diff of the motor of this actuating device is placed on a side of motor, the shortcoming of this actuating device is because motor and diff are distinct structures, the requirement of the short and thick ability meeting spatial that therefore size of motor need to be done, and short and thick structure also can reduce to some extent to motor output torque.
Summary of the invention
The problem to be solved in the present invention is: provide a kind of simple in structure, diff and motor are integrated to formula structure thereby noise is little and energy conversion rate the is high battery-driven car bridge engine installation of directly driving.
In order to address the above problem, the battery-driven car of the present invention bridge engine installation of directly driving, comprise motor casing, be separately fixed at motor left end cap and the motor right end cap at two ends, motor casing left and right, in described motor casing, be provided with motor stator winding, in described motor stator winding, be provided with rotor winding, in described rotor winding, be fixed with diff left shell and right differential housing, in described diff left shell and right differential housing, be provided with diff, the two ends, left and right of described diff are respectively provided with an axle half shafts connecting interface, described two axle half shafts connecting interfaces are connected with respectively a vehicle bridge left half axle and a vehicle bridge right axle shaft, in described rotor winding, be fixed with rotor left half axle and the rotor right axle shaft of hollow, described rotor left half axle is fixedly connected with diff left shell, described rotor right axle shaft is fixedly connected with right differential housing, described vehicle bridge left half axle stretches out from rotor left half axle, described vehicle bridge right axle shaft stretches out from rotor right axle shaft.
In order to make rotor left half axle and rotor right axle shaft rotate more stably, to better export energy, the battery-driven car of the present invention bridge engine installation of directly driving, it is characterized in that: in described motor left end cap, be provided with one for the left support bearing of support rotor left half axle, in described motor right end cap, be provided with one for the right support bearing of support rotor right axle shaft, the left side of described motor left end cap is fixed with a left bearing end cap, described vehicle bridge left half axle stretches out in outside left bearing end cap, the right side of described motor right end cap is fixed with a right bearing end cap, described vehicle bridge right axle shaft stretches out in outside right bearing end cap.
For can be firm by diff left shell and firm being fixed together of right differential housing, the battery-driven car of the present invention bridge engine installation of directly driving, is provided with bolt of rear end plate between described diff left shell and right differential housing.
For firm left bearing end cap and right bearing end cap are fixed on motor left end cap and motor right end cap, the battery-driven car of the present invention bridge engine installation of directly driving, between described motor left end cap and left bearing end cap, by bolt and nut, being fixedly connected with, is to be also fixedly connected with by bolt and nut between described motor right end cap and right bearing end cap.
The beneficial effect that the present invention obtains is: (1) is simple in structure, (2) by diff integrated with rotor winding in, wherein diff left shell is all fixedly connected with rotor winding with right differential housing, the two ends, left and right of diff are respectively provided with an axle half shafts connecting interface, on diff left shell and right differential housing, be fixedly connected with respectively a roots rotor left half axle and rotor right axle shaft, vehicle bridge left half axle and vehicle bridge right axle shaft dock with two axle half shafts connecting interfaces respectively, vehicle bridge left half axle stretches out from rotor left half axle, vehicle bridge right axle shaft stretches out from rotor right axle shaft, when driving battery-driven car operation, by rotor left half axle, rotor right axle shaft, the cooperation of vehicle bridge left half axle and vehicle bridge right axle shaft is rotated, can be by power transmission to wheel, when wheel turns round, effect due to diff, also adjustment vehicle bridge left half axle that can be promptly and accurately and the rotating speed of vehicle bridge right axle shaft, to adapt to turning round of wheel, therefore, after diff is integrated in rotor winding, improved the sealing property of diff, so can greatly reduce the noise that diff produces, simultaneously, after diff is integrated in rotor winding, make rotor left half axle, rotor right axle shaft, the length of vehicle bridge left half axle and vehicle bridge right axle shaft has had the space increasing, so can improve the moment of torsion of whole engine installation, (3) in motor left end cap, be provided with one for the left support bearing of support rotor left half axle, in motor right end cap, be provided with one for the right support bearing of support rotor right axle shaft, the left side of motor left end cap is fixed with a left bearing end cap, the right side of motor right end cap is fixed with a right bearing end cap, thereby can make rotor left half axle and rotor right axle shaft rotate more stably, outputting power more stably, (4) between diff left shell and right differential housing, be provided with bolt of rear end plate, thereby can be by diff left shell and firm being fixed together of right differential housing, between motor left end cap and left bearing end cap, by bolt and nut, be fixedly connected with, between motor right end cap and right bearing end cap, be to be also fixedly connected with by bolt and nut, thus can be firm by motor left end cap and left bearing end cap and motor right end cap and firm being fixed together of right bearing end cap.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
In figure: 1, rotor left half axle, 2, diff left shell, 3, bolt of rear end plate, 4, right differential housing, 5, rotor winding, 6, motor right end cap, 7, right support bearing, 8, rotor right axle shaft, 9, diff, 10, motor casing, 11, motor left end cap, 12, left support bearing, 13, motor stator winding, 14, axle half shafts connecting interface, 15, vehicle bridge left half axle, 16, left bearing end cap, 17, right bearing end cap, 18, vehicle bridge right axle shaft.
The specific embodiment
As shown in Figure 1, the battery-driven car of the present invention bridge engine installation of directly driving, comprise motor casing 10, be separately fixed at motor left end cap 11 and the motor right end cap 6 at motor casing 10 two ends, left and right, in described motor casing 10, be provided with motor stator winding 13, in described motor stator winding 13, be provided with rotor winding 5, in described rotor winding 5, be fixed with diff left shell 2 and right differential housing 4, in described diff left shell 2 and right differential housing 4, be provided with diff 9, the two ends, left and right of described diff 9 are respectively provided with an axle half shafts connecting interface 14, described two axle half shafts connecting interfaces 14 are connected with respectively a vehicle bridge left half axle 15 and a vehicle bridge right axle shaft 18, in described rotor winding 5, be fixed with rotor left half axle 1 and the rotor right axle shaft 8 of hollow, described rotor left half axle 1 is fixedly connected with diff left shell 2, described rotor right axle shaft 8 is fixedly connected with right differential housing 4, described vehicle bridge left half axle 15 stretches out from rotor left half axle 1, described vehicle bridge right axle shaft 18 stretches out from rotor right axle shaft 8, in described motor left end cap 11, be provided with one for the left support bearing 12 of support rotor left half axle 1, in described motor right end cap 6, be provided with one for the right support bearing 7 of support rotor right axle shaft 8, the left side of described motor left end cap 11 is fixed with a left bearing end cap 16, described vehicle bridge left half axle 15 stretches out in outside left bearing end cap 16, the right side of described motor right end cap 6 is fixed with a right bearing end cap 17, and described vehicle bridge right axle shaft 18 stretches out in outside right bearing end cap 17, between described diff left shell 2 and right differential housing 4, be provided with bolt of rear end plate 3, between described motor left end cap 11 and left bearing end cap 16, by bolt and nut, being fixedly connected with, is to be also fixedly connected with by bolt and nut between described motor right end cap 6 and right bearing end cap 17.
The battery-driven car of the present invention bridge engine installation of directly driving, when driving battery-driven car operation, by rotor left half axle 1, rotor right axle shaft 8, the cooperation of vehicle bridge left half axle and vehicle bridge right axle shaft is rotated, can be by power transmission to wheel, when wheel turns round, effect due to diff 9, also adjustment vehicle bridge left half axle that can be promptly and accurately and the rotating speed of vehicle bridge right axle shaft, to adapt to turning round of wheel, therefore, after diff 9 is integrated in rotor winding 5, the function of diff 9 is constant, but improved the sealing property of diff 9, so can greatly reduce the noise that diff 9 produces, simultaneously, after diff 9 is integrated in rotor winding 5, make rotor left half axle 1, rotor right axle shaft 8, the length of vehicle bridge left half axle and vehicle bridge right axle shaft has had the space increasing, so can improve the moment of torsion of whole engine installation.
In motor left end cap 11, be provided with one for the left support bearing 12 of support rotor left half axle 1, in motor right end cap 6, be provided with one for the right support bearing 7 of support rotor right axle shaft 8, the left side of motor left end cap 11 is fixed with a left bearing end cap 16, the right side of motor right end cap 6 is fixed with a right bearing end cap 17, thereby can make rotor left half axle 1 and rotor right axle shaft 8 rotate more stably, outputting power more stably.
Between diff left shell 2 and right differential housing 4, be provided with bolt of rear end plate 3, thereby can be by diff left shell 2 and firm being fixed together of right differential housing 4, between motor left end cap 11 and left bearing end cap 16, by bolt and nut, be fixedly connected with, between motor right end cap 6 and right bearing end cap 17, be to be also fixedly connected with by bolt and nut, thus can be firm by motor left end cap 11 and left bearing end cap 16 and motor right end cap 6 and firm being fixed together of right bearing end cap 17.

Claims (4)

1. the battery-driven car bridge engine installation of directly driving, it is characterized in that: comprise motor casing (10), be separately fixed at motor left end cap (11) and the motor right end cap (6) at motor casing (10) two ends, left and right, in described motor casing (10), be provided with motor stator winding (13), in described motor stator winding (13), be provided with rotor winding (5), in described rotor winding (5), be fixed with diff left shell (2) and right differential housing (4), in described diff left shell (2) and right differential housing (4), be provided with diff (9), the two ends, left and right of described diff (9) are respectively provided with an axle half shafts connecting interface (14), described two axle half shafts connecting interfaces (14) are connected with respectively a vehicle bridge left half axle (15) and a vehicle bridge right axle shaft (18), in described rotor winding (5), be fixed with rotor left half axle (1) and the rotor right axle shaft (8) of hollow, described rotor left half axle (1) is fixedly connected with diff left shell (2), described rotor right axle shaft (8) is fixedly connected with right differential housing (4), described vehicle bridge left half axle (15) stretches out from rotor left half axle (1), described vehicle bridge right axle shaft (18) stretches out from rotor right axle shaft (8).
2. the battery-driven car according to claim 1 bridge engine installation of directly driving, it is characterized in that: in described motor left end cap (11), be provided with one for the left support bearing (12) of support rotor left half axle (1), in described motor right end cap (6), be provided with one for the right support bearing (7) of support rotor right axle shaft (8), the left side of described motor left end cap (11) is fixed with a left bearing end cap (16), described vehicle bridge left half axle (15) stretches out in outside left bearing end cap (16), the right side of described motor right end cap (6) is fixed with a right bearing end cap (17), described vehicle bridge right axle shaft (18) stretches out in outside right bearing end cap (17).
3. the battery-driven car according to claim 2 bridge engine installation of directly driving, is characterized in that: between described diff left shell (2) and right differential housing (4), be provided with bolt of rear end plate (3).
4. according to the bridge engine installation of directly driving of the battery-driven car described in claim 2 or 3, it is characterized in that: between described motor left end cap (11) and left bearing end cap (16), by bolt and nut, being fixedly connected with, is to be also fixedly connected with by bolt and nut between described motor right end cap (6) and right bearing end cap (17).
CN201310670623.5A 2013-12-04 2013-12-04 Power device for direct-driving axle of electric vehicle Pending CN103692892A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201310670623.5A CN103692892A (en) 2013-12-04 2013-12-04 Power device for direct-driving axle of electric vehicle

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Application Number Priority Date Filing Date Title
CN201310670623.5A CN103692892A (en) 2013-12-04 2013-12-04 Power device for direct-driving axle of electric vehicle

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107776399A (en) * 2016-08-31 2018-03-09 东风德纳车桥有限公司 A kind of electric axle assembly
CN112677760A (en) * 2019-10-18 2021-04-20 比亚迪股份有限公司 Axle assembly and vehicle

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2595603Y (en) * 2002-12-26 2003-12-31 稳正企业股份有限公司 Power driving system for electric vehicle
DE102004026040A1 (en) * 2004-05-27 2005-12-15 Linde Ag Drive axle with electric motor for working drive e.g. for forklift truck, has rotatably mounted stator fixed by coupling device relative to housing transverse wall
CN2770210Y (en) * 2005-03-11 2006-04-05 王瑷国 Motor differential speed rotor
DE102005055690A1 (en) * 2005-11-23 2007-05-24 Linde Ag Motor drive for vehicle, has electrical driving motor with rotor, which is radially arranged in the stator whereby differential gear is arranged inside rotor
CN101032921A (en) * 2007-04-06 2007-09-12 上海中上汽车科技有限公司 Different velocity motor drive system for electric car
CN201380721Y (en) * 2009-03-26 2010-01-13 周学锡 Electric vehicle drive axle
CN201490832U (en) * 2009-06-29 2010-05-26 童助林 Differential mechanism assembly of brushless motor of electric vehicle
CN203567535U (en) * 2013-12-04 2014-04-30 张�杰 Power device for electromobile direct-driven axle

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2595603Y (en) * 2002-12-26 2003-12-31 稳正企业股份有限公司 Power driving system for electric vehicle
DE102004026040A1 (en) * 2004-05-27 2005-12-15 Linde Ag Drive axle with electric motor for working drive e.g. for forklift truck, has rotatably mounted stator fixed by coupling device relative to housing transverse wall
CN2770210Y (en) * 2005-03-11 2006-04-05 王瑷国 Motor differential speed rotor
DE102005055690A1 (en) * 2005-11-23 2007-05-24 Linde Ag Motor drive for vehicle, has electrical driving motor with rotor, which is radially arranged in the stator whereby differential gear is arranged inside rotor
CN101032921A (en) * 2007-04-06 2007-09-12 上海中上汽车科技有限公司 Different velocity motor drive system for electric car
CN201380721Y (en) * 2009-03-26 2010-01-13 周学锡 Electric vehicle drive axle
CN201490832U (en) * 2009-06-29 2010-05-26 童助林 Differential mechanism assembly of brushless motor of electric vehicle
CN203567535U (en) * 2013-12-04 2014-04-30 张�杰 Power device for electromobile direct-driven axle

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107776399A (en) * 2016-08-31 2018-03-09 东风德纳车桥有限公司 A kind of electric axle assembly
CN112677760A (en) * 2019-10-18 2021-04-20 比亚迪股份有限公司 Axle assembly and vehicle

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C06 Publication
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C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
ASS Succession or assignment of patent right

Owner name: TAI AN KERNEL ELECTRONIC DEVELOPMENT CO., LTD.

Free format text: FORMER OWNER: ZHANG JIE

Effective date: 20140918

C41 Transfer of patent application or patent right or utility model
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Effective date of registration: 20140918

Address after: 271021 youth Pioneer Park, Daiyue District, Shandong, Tai'an province (Li Jie Hotel)

Applicant after: Tai'an Kernel Electronic Development Co., Ltd.

Address before: 271021 youth Pioneer Park, Daiyue District, Shandong, Tai'an province (Li Jie Hotel)

Applicant before: Zhang Jie

C02 Deemed withdrawal of patent application after publication (patent law 2001)
WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20140402