CN101967930A - Automobile power back door driving mechanism - Google Patents

Automobile power back door driving mechanism Download PDF

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Publication number
CN101967930A
CN101967930A CN2010102880830A CN201010288083A CN101967930A CN 101967930 A CN101967930 A CN 101967930A CN 2010102880830 A CN2010102880830 A CN 2010102880830A CN 201010288083 A CN201010288083 A CN 201010288083A CN 101967930 A CN101967930 A CN 101967930A
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CN
China
Prior art keywords
bull
screw mandrel
sleeve
nut
spring
Prior art date
Application number
CN2010102880830A
Other languages
Chinese (zh)
Inventor
高峰
Original Assignee
宁波信泰机械有限公司
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 宁波信泰机械有限公司 filed Critical 宁波信泰机械有限公司
Priority to CN2010102880830A priority Critical patent/CN101967930A/en
Publication of CN101967930A publication Critical patent/CN101967930A/en

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Abstract

The invention discloses an automobile power back door driving mechanism. The automobile power back door driving mechanism comprises a motor sleeve, a micro motor positioned in the motor sleeve, a planetary reducer, a screw rod sleeve, a multihead screw rod positioned in the screw rod sleeve, a nut sleeve, a multihead nut poisoned in the nut sleeve, wherein the multihead nut and multihead screw rod form a feed screw nut pair; a spring is sleeved outside the multihead screw rod and multihead nut; and the multihead screw rod is driven by the micro motor to drive the multihead nut to move relative to the multihead screw rod and the nut sleeve moves relative to the screw rod sleeve simultaneously. The mechanism has a simple and compact structure and small size, can be electrically started and closed when being energized, can extend and retract by manually driving the spring when not being energized and can realize free switching between motor operation and manual operation without any clutch.

Description

Motorcar electric tail-gate driving mechanism

Technical field

The present invention relates to a kind of automobile tail gate driving mechanism, particularly relate to a kind of motorcar electric tail-gate driving mechanism.

Background technology

At home, in the existing SUV automobile, the tail-gate great majority still utilize air spring to realize the hand switch door, but continuous expansion along with Chinese automobile market, the passenger uses the continual renovation of car idea, the SUV that is equipped with electronic tail-gate is also more and more, and according to the development experience of external automobile market, the SUV automobile tail gate will become a kind of trend by manually changing electronic tail-gate into.As long as the passenger presses the button (driver's seat button or key button), door will automatic switch, only needs a few times in second, makes things convenient for the passenger to pick and place article.Especially under the sleety weather situation, can avoid the switch tail-gate and the hand of making dirty, inconvenience that brought when the switch tail-gate provides solution because strength is little also to give most women passenger simultaneously.For safety is considered, electronic tail-gate can also have pinch resistant functionality.

Comparatively ripe in the market electronic tail-gate system mainly contains two kinds, and a kind of is pinion and-rack tail-gate driving mechanism, it mainly be by motor, clutch, gear, tooth bar transmission and be connected tail-gate and tooth bar on connecting rod etc. constitute.Its basic principle is: the moving connecting rod that is fixed on tooth bar and the tail-gate of motor-driven gear tooth bar subband is realized the switch of tail-gate, and the switching of manual/electric is to adopt the clutch that is connected on the motor output shaft to control.As the patent No. be US6767048B2 disclosed be pinion and-rack tail-gate driving mechanism.The shortcoming that this structure exists is: the position of engagement between the rack-and-pinion changes in the process of tail-gate switch, is not correct in theory path of action, causes in the process of switch door noise big, the transmission instability.This mechanism's appearance and size is bigger than normal, is installed in a left side or the right side of gusset, take bigger boot space, and space, the left and right sides is asymmetric; And in the process of switch door, the rectilinear motion stroke of tooth bar is longer, needs to reserve sizable space.

Another kind is rocker arm tail-gate driving mechanism, and is disclosed as JP2003-336448A, and it mainly is made of conglomerate, secondary gear pair, rocking arm and the connecting rod etc. of motor and clutch.Its basic principle is: the motorized motions gear pair drives the rocking arm reciprocating swing, realizes the automatic switch of tail-gate by the drivening rod that swings back and forth of rocking arm.Hand/switching automatically also is to put by the suction of clutch to control.The major defect of this mechanism is as follows: its installation site is near the gusset D post, in general, with the human engineering of the 3rd row's seat of automobile certain interference is arranged, and the safety belt that will as far as possible avoid the 3rd row's seat arranges that the installation site requires very harsh; This mechanism needs the corresponding trim panel of special design to contain it after vehicle body is installed, and causes the vehicle right and left structure space asymmetric, influences attractive in appearance.

Summary of the invention

Technical problem to be solved by this invention provides a kind of compact conformation, novelty, the electronic tail-gate driving mechanism that profile is elongated, volume is little.

The present invention solves the problems of the technologies described above the technical scheme that is adopted: motor sleeve is positioned at the micromachine and the planetary reducer of described motor sleeve;

Screw mandrel sleeve and the bull screw mandrel that is positioned at described screw mandrel sleeve, an end of described bull screw mandrel is connected to the output of micromachine by described planetary reducer, and described motor sleeve is fixedlyed connected with the screw mandrel sleeve;

Ut socket and be fixed on bull nut in the described ut socket, the other end of described bull screw mandrel is positioned at described bull nut, and described bull nut and described bull screw mandrel form feed screw nut pair, dispose the guide that the described bull nut of restriction rotates simultaneously;

The described bull screw mandrel and the described bull nut outside are with a spring, one end of described spring is butted on an end that connects near described motor sleeve in the described screw mandrel sleeve, and the other end of described spring is butted on the end away from described motor sleeve in the described ut socket.Micromachine drives planetary gear and drives the automatic switch that the bull feed screw nut realizes tail-gate, and is not only simple in structure, compact, and the bodily form is small and exquisite.

Preferably, the original length of described spring is more than or equal to the summation of described bull screw mandrel and bull nut length.

In order to prevent that the bull nut from along with the rotation of bull screw mandrel, guaranteeing the motion straightness of bull screw mandrel in the bull nut, described guide is the lead that is installed on the described bull screw mandrel other end that is positioned at described bull nut.

Preferably, the end near described motor sleeve in the described screw mandrel sleeve has a spring-loaded sheet, and an end of described spring is butted on the described spring-loaded sheet.

For fixing described bull screw mandrel, an end of described bull screw mandrel is installed on the described screw mandrel sleeve by a bearing and flanged plate.

Be connected with automobile tail gate for the ease of described electronic tail-gate driving mechanism, the outboard end of described motor sleeve and described ut socket is fixed with connector respectively, and is connected with the bulb connector respectively on the described connector.

Compared with prior art, the invention has the advantages that: micromachine drives planetary gear and drives the automatic switch that the bull feed screw nut realizes tail-gate, more can replace general SUV tail-gate air spring, its installation site and air spring are very nearly the same, so do not take any space of boot, really realize the miniaturization of auto parts and components, realized " seamless integrated " of electronic tail-gate mechanism and car load.This mechanism is easy for installation, profile is elongated, and volume and air spring are similar, and its novel structure, and easy to use, performance is more stable.

Description of drawings

Fig. 1 is the installation site schematic diagram of the electronic tail-gate driving mechanism of the embodiment of the invention.

Fig. 2 is the structural representation of the electronic tail-gate driving mechanism of the embodiment of the invention.

Fig. 3 is the sectional view of the electronic tail-gate driving mechanism of the embodiment of the invention.

The specific embodiment

Embodiment describes in further detail the present invention below in conjunction with accompanying drawing.

Electronic tail-gate driving mechanism of the present invention, as shown in Figure 1, the bulb joint 1 by two ends is separately fixed on vehicle body and the tail-gate, with common SUV air spring process basically identical is installed, this electronic tail-gate driving mechanism installs simply, not cumbersome, and at utmost guaranteed the reliability of installing.

This electronic tail-gate driving mechanism, shown in Fig. 2-3, its profile can comprise A, B, C three parts that connect successively, A, B part is not moved, be standing part, the C part with respect to A, B motion, is motion parts along with the switch of tail-gate, and wherein the length of B part is the length of the stroke of this electronic tail-gate driving mechanism.And the length that electronic tail-gate driving mechanism elongates or shortens difference according to the concrete installation site of the unlatching maximum angle of each vehicle tail-gate and electric spring and to some extent.

Two outboard ends of described electronic tail-gate driving mechanism have 1, two bulb joint 1 of bulb joint is fixed on standing part A and motion parts C respectively by coupling head 2 and coupling head 13 outboard end respectively.Micromachine 3 and planetary reducer 4 that standing part A comprises motor jacket casing 5 and is positioned at motor sleeve 5, the output of micromachine 3 is fixedly attached to planetary reducer 4, and be installed in the motor sleeve 5 by screw, the output of planetary reducer 4 is connected to an end of bull screw mandrel 9 by spline.Described standing part B comprises screw mandrel sleeve 7, and the bull screw mandrel 9 that is positioned at screw mandrel sleeve 7, and described bull screw mandrel 9 is formed a bull feed screw nut pair with bull nut 11.The outside of described bull nut 11 is with ut socket 10, and this bull nut 11 and bull nut 11 nut outside sleeves 10 are motion parts C.Coupling head 2 and 13 is individually fixed in two outboard end of described motor sleeve 5 and described ut socket 10.

First lead 14 and second lead 15 are housed on the other end of described bull screw mandrel 9, this end is positioned at bull nut 11, to guarantee that the bull feed screw nut pair makes bull screw mandrel 9 play a guide effect in bull nut 11 in motion process, prevent bull nut 11 along with bull screw mandrel 9 rotates, and then guarantee the motion straightness of bull feed screw nut pair.The external surface of described first lead 14 and second lead 15 is a polygon.One end of bull screw mandrel 9 is installed on the bearing 17, and bearing 17 is installed on the screw mandrel sleeve 7 by flanged plate 6.The end that screw mandrel sleeve 7 has flanged plate 6 is connected with described motor sleeve 5.Described micromachine 3 drives described bull feed screw nut pair by planetary reducer 4, make described bull nut 11 in bull screw mandrel 9 outsides along described bull screw mandrel 9 axial moving linearlies, increase or reduce thereby form the length overall make bull screw mandrel 9 and bull nut 11.

Described ut socket 10 is positioned at the outside or the inboard of described screw mandrel sleeve 7, and along with the motion of bull nut 11 with respect to bull screw mandrel 9, described ut socket 10 is also with respect to 7 motions of screw mandrel sleeve.Described screw mandrel sleeve 7 is in an end that connects motor sleeve 5, be provided with a spring-loaded sheet 16, one end of one spring 8 is butted on described spring-loaded sheet 16, the other end is butted on the outermost end in the described ut socket 10, and described spring 8 is placed in the described bull screw mandrel 9 and described bull nut 11 outsides.

The length of spring 8 under reset condition can be for arbitrarily, as long as can be when the electronic tail-gate of automobile is opened or closed, compression or extension spring make and produce an opposite effect power between described bull screw mandrel 9 and the bull nut 10 and get final product.Preferably, the length of described spring 8 under reset condition should be more than or equal to described bull screw mandrel 9 and bull nut 10 summation of length separately.When tail-gate was opened, away from described motor sleeve 5, the elastic force of described spring 8 played the effect of a support to ut socket 10, is equivalent to the function of the tail-gate air spring of general-utility car with respect to 9 elongations of bull screw mandrel.Tail-gate is electronic when closing, micromachine 3 drives planetary reducer 4, utilize the amplification of the big speed ratio realization output torque of planetary reducer 4, planetary reducer 4 is connected with bull screw mandrel 9 by spline, utilize the spline carry-over moment, bull screw mandrel 9 drives the elastic force moving linearly that bull nut 11 overcomes spring 8 with the feed screw nut pair of bull nut 11, described ut socket 10 is near described motor sleeve 5, thereby realize closing automatically of tail-gate, because the non-self-locking performance of bull feed screw nut pair need be by being provided with the locking device locking in addition.Under cold situation, only need open locking device, the thrust of spring also can promote bull feed screw nut secondary motion, realizes opening automatically of tail-gate.In like manner also can be under the situation that tail-gate is opened entirely, realize manual closing the door by manually driving the elastic force that the bull feed screw nut pair overcomes spring, and get final product by the locking device locking.

So described electronic tail-gate driving mechanism, both can under the situation of energising, realize electronic switching, can under cold effect, realize that the manual drives spring carries out stretching motion, can just can realize electrically and manually switching freely under the situation that does not adopt clutch again.And this mechanism has used micromachine and planetary reducer, makes this structure not only simple, compact, and volume is less, good looking appearance, does not take any space of boot, realizes " seamless integrated " of electronic tail-gate mechanism and car load.

In addition to the implementation, the present invention also includes other embodiments, and the technical scheme that all employing equivalents or equivalent substitute mode form all should fall within the protection domain of claim of the present invention.

Claims (7)

1. motorcar electric tail-gate driving mechanism is characterized in that comprising:
Motor sleeve (5) is positioned at the micromachine (3) and the planetary reducer (4) of described motor sleeve (5);
Screw mandrel sleeve (7) and the bull screw mandrel (7) that is positioned at described screw mandrel sleeve (7), one end of described bull screw mandrel (7) is connected to the output of micromachine (3) by described planetary reducer (4), and described motor sleeve (5) is fixedlyed connected with screw mandrel sleeve (7);
Ut socket (10) and be fixed on bull nut (11) in the described ut socket (10), the other end of described bull screw mandrel (7) is positioned at described bull nut (11), and described bull nut (11) forms feed screw nut pair with described bull screw mandrel (7), disposes the guide that the described bull nut of restriction rotates simultaneously;
The described bull screw mandrel (9) and described bull nut (11) outside are with a spring (8), one end of described spring (8) is butted on an end that connects near described motor sleeve (5) in the described screw mandrel sleeve (7), and the other end of described spring (8) is butted on the end away from described motor sleeve (5) in the described ut socket (10).
2. motorcar electric tail-gate driving mechanism as claimed in claim 1 is characterized in that: the original length of described spring (8) is more than or equal to the summation of described bull screw mandrel (7) and bull nut (10) length.
3. motorcar electric tail-gate driving mechanism as claimed in claim 1 is characterized in that: described guide is for being installed in the lead (14,15) on described bull screw mandrel (7) other end that is positioned at described bull nut (11).
4. motorcar electric tail-gate driving mechanism as claimed in claim 1, it is characterized in that: the end near described motor sleeve (5) in the described screw mandrel sleeve (7) has a spring-loaded sheet (16), and an end of described spring (8) is butted on the described spring-loaded sheet (16).
5. motorcar electric tail-gate driving mechanism as claimed in claim 1 is characterized in that: an end of described bull screw mandrel (7) is installed on the described screw mandrel sleeve (7) by a bearing (17) and flanged plate (6).
6. motorcar electric tail-gate driving mechanism as claimed in claim 1 is characterized in that: described ut socket (10) is placed in described screw mandrel sleeve (7) outside.
7. as each described motorcar electric tail-gate driving mechanism of claim 1-6, it is characterized in that: the outboard end of described motor sleeve (5) and described ut socket (10) is fixed with connector (2,13) respectively, and is connected with bulb connector (1) respectively on the described connector (2,13).
CN2010102880830A 2010-09-15 2010-09-15 Automobile power back door driving mechanism CN101967930A (en)

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Application Number Priority Date Filing Date Title
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Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103089103A (en) * 2011-11-03 2013-05-08 昆山麦格纳汽车系统有限公司 Power-operated tailgate driving mechanism with overload separation protection device
CN104786787A (en) * 2015-04-03 2015-07-22 武汉佳特轿车零部件有限公司 Electric opening and closing system for automotive tail door
CN104812985A (en) * 2012-08-09 2015-07-29 博泽(哈尔施塔特)汽车零部件有限公司 Drive arrangement for displacing flap of motor vehicle
CN104838173A (en) * 2012-09-25 2015-08-12 博泽(哈尔施塔特)汽车零部件有限公司 Spindle drive for an adjustment element of a motor vehicle
DE102015107627A1 (en) 2014-05-15 2015-11-19 Johnson Electric S.A. Force strut
CN105178764A (en) * 2015-08-14 2015-12-23 芜湖玮博泰克汽车技术有限公司 Motor vehicle back door structure
CN105275302A (en) * 2015-07-22 2016-01-27 上海蒙芭蒂实业有限公司 Lifting opening and closing power device of back door of electric car trunk
CN105275301A (en) * 2015-07-22 2016-01-27 上海蒙芭蒂实业有限公司 Electric air spring supporting rod of car rear back door
CN105952706A (en) * 2016-05-20 2016-09-21 潘微杰 Intelligent electric driving cylinder device
CN106230182A (en) * 2016-08-30 2016-12-14 无锡艾尔特线性运动机械有限公司 Planetary reduction gear electric pushrod
CN107317428A (en) * 2017-03-28 2017-11-03 德昌电机(深圳)有限公司 Automobile tail gate lowering or hoisting gear and its drive device
CN107869559A (en) * 2016-09-22 2018-04-03 斯塔比卢斯有限责任公司 Main shaft driving device
US10100906B2 (en) 2011-12-23 2018-10-16 Brose Fahrzeugteile Gmbh & Co. Kg, Hallstadt Spindle drive for an adjustment element of a motor vehicle

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Publication number Priority date Publication date Assignee Title
JP2002331837A (en) * 2001-05-10 2002-11-19 Ntn Corp Back door opening/closing device
CN1891964A (en) * 2005-06-27 2007-01-10 斯塔比卢斯有限责任公司 Drive device
CN101443522A (en) * 2006-03-31 2009-05-27 法雷奥安全系统有限责任公司 Adjusting device having a spindle drive
WO2010069785A1 (en) * 2008-12-19 2010-06-24 Valeo Sicherheitssysteme Gmbh Adjusting device having a spindle drive
CN201818174U (en) * 2010-09-15 2011-05-04 宁波信泰机械有限公司 Driving mechanism of electric tailgate of automobile

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002331837A (en) * 2001-05-10 2002-11-19 Ntn Corp Back door opening/closing device
CN1891964A (en) * 2005-06-27 2007-01-10 斯塔比卢斯有限责任公司 Drive device
CN101443522A (en) * 2006-03-31 2009-05-27 法雷奥安全系统有限责任公司 Adjusting device having a spindle drive
WO2010069785A1 (en) * 2008-12-19 2010-06-24 Valeo Sicherheitssysteme Gmbh Adjusting device having a spindle drive
CN201818174U (en) * 2010-09-15 2011-05-04 宁波信泰机械有限公司 Driving mechanism of electric tailgate of automobile

Cited By (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103089103A (en) * 2011-11-03 2013-05-08 昆山麦格纳汽车系统有限公司 Power-operated tailgate driving mechanism with overload separation protection device
US10100906B2 (en) 2011-12-23 2018-10-16 Brose Fahrzeugteile Gmbh & Co. Kg, Hallstadt Spindle drive for an adjustment element of a motor vehicle
CN104812985A (en) * 2012-08-09 2015-07-29 博泽(哈尔施塔特)汽车零部件有限公司 Drive arrangement for displacing flap of motor vehicle
CN104812985B (en) * 2012-08-09 2017-05-17 博泽(哈尔施塔特)汽车零部件有限公司 Drive arrangement for displacing flap of motor vehicle
CN104838173A (en) * 2012-09-25 2015-08-12 博泽(哈尔施塔特)汽车零部件有限公司 Spindle drive for an adjustment element of a motor vehicle
CN104838173B (en) * 2012-09-25 2018-05-11 博泽(哈尔施塔特)汽车零部件有限公司 Spindle driver for the adjustment element of motor vehicle
US10808444B2 (en) 2012-09-25 2020-10-20 Brose Fahrzeugteile Gmbh & Co. Kg, Hallstadt Spindle drive for an adjustment element of a motor vehicle
CN105089408A (en) * 2014-05-15 2015-11-25 德昌电机(深圳)有限公司 Electric lifting device for automobile stern door
US10141813B2 (en) 2014-05-15 2018-11-27 Johnson Electric S.A. Power strut
DE102015107627A1 (en) 2014-05-15 2015-11-19 Johnson Electric S.A. Force strut
CN104786787A (en) * 2015-04-03 2015-07-22 武汉佳特轿车零部件有限公司 Electric opening and closing system for automotive tail door
CN105275301A (en) * 2015-07-22 2016-01-27 上海蒙芭蒂实业有限公司 Electric air spring supporting rod of car rear back door
CN105275301B (en) * 2015-07-22 2016-12-07 上海蒙芭蒂实业有限公司 The electronic Air spring support of automotive back door
CN105275302A (en) * 2015-07-22 2016-01-27 上海蒙芭蒂实业有限公司 Lifting opening and closing power device of back door of electric car trunk
CN105275302B (en) * 2015-07-22 2016-12-07 上海蒙芭蒂实业有限公司 Motorcar electric boot tailgate lifting opening and closing power set
CN105178764A (en) * 2015-08-14 2015-12-23 芜湖玮博泰克汽车技术有限公司 Motor vehicle back door structure
WO2017197543A1 (en) * 2016-05-20 2017-11-23 潘微杰 Smart electric drive cylinder device
CN105952706A (en) * 2016-05-20 2016-09-21 潘微杰 Intelligent electric driving cylinder device
CN105952706B (en) * 2016-05-20 2018-11-30 宁波拓尔精工机械有限公司 Intelligent electric drives air cylinder device
CN106230182A (en) * 2016-08-30 2016-12-14 无锡艾尔特线性运动机械有限公司 Planetary reduction gear electric pushrod
CN107869559A (en) * 2016-09-22 2018-04-03 斯塔比卢斯有限责任公司 Main shaft driving device
CN107317428A (en) * 2017-03-28 2017-11-03 德昌电机(深圳)有限公司 Automobile tail gate lowering or hoisting gear and its drive device

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Application publication date: 20110209