CN201818174U - Driving mechanism of electric tailgate of automobile - Google Patents
Driving mechanism of electric tailgate of automobile Download PDFInfo
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- CN201818174U CN201818174U CN201020537172XU CN201020537172U CN201818174U CN 201818174 U CN201818174 U CN 201818174U CN 201020537172X U CN201020537172X U CN 201020537172XU CN 201020537172 U CN201020537172 U CN 201020537172U CN 201818174 U CN201818174 U CN 201818174U
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- screw mandrel
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- nut
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Abstract
A driving mechanism of an electric tailgate of an automobile comprises a motor sleeve, a micromotor, a planet gear reducer, a lead screw sleeve, a multi-head lead screw, a nut sleeve and a multi-head nut. The micromotor and the planet gear reducer are arranged in the motor sleeve, the multi-head lead screw is arranged in the lead screw sleeve, the multi-head nut is arranged in the nut sleeve, the multi-head nut and the multi-head lead screw form a screw-nut pair, a spring is sleeved outside the multi-head lead screw and the multi-head nut, the multi-head lead screw is driven by the micromotor to further drive the multi-head nut to move relative to the multi-head lead screw, and simultaneously the nut sleeve is driven to move relative to the lead screw sleeve. The driving mechanism is simple and compact in structure and small in volume, is capable of not only realizing electric opening and closing of the tailgate on the power-on condition, but also realizing manually driving the spring to extend and retract on the power-off condition, and further is capable of realizing free switching between electric operation and manual operation on the condition without clutch.
Description
Technical field
The utility model relates to a kind of automobile tail gate driving mechanism, particularly relates 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.
The utility model content
Technical problem to be solved in the utility model provides a kind of compact conformation, novelty, the electronic tail-gate driving mechanism that profile is elongated, volume is little.
The utility model 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, advantage of the present utility model is: 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 utility model embodiment.
Fig. 2 is the structural representation of the electronic tail-gate driving mechanism of the utility model embodiment.
Fig. 3 is the sectional view of the electronic tail-gate driving mechanism of the utility model embodiment.
The specific embodiment
Embodiment describes in further detail the utility model below in conjunction with accompanying drawing.
Electronic tail-gate driving mechanism of the present utility model, as shown in Figure 1, 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.
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 utility model 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 the utility model claim.
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).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020537172XU CN201818174U (en) | 2010-09-15 | 2010-09-15 | Driving mechanism of electric tailgate of automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020537172XU CN201818174U (en) | 2010-09-15 | 2010-09-15 | Driving mechanism of electric tailgate of automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201818174U true CN201818174U (en) | 2011-05-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201020537172XU Expired - Fee Related CN201818174U (en) | 2010-09-15 | 2010-09-15 | Driving mechanism of electric tailgate of automobile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201818174U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101967930A (en) * | 2010-09-15 | 2011-02-09 | 宁波信泰机械有限公司 | Automobile power back door driving mechanism |
| CN104040104A (en) * | 2012-01-12 | 2014-09-10 | 斯塔比卢斯有限责任公司 | Drive device |
| CN105019766A (en) * | 2015-07-28 | 2015-11-04 | 深圳市因奥普精电科技有限公司 | Electric supporting rod, control method for electric supporting rod and vehicle |
| CN105658895A (en) * | 2013-09-06 | 2016-06-08 | 博泽（哈尔施塔特）汽车零部件有限公司 | Drive device for a hatch of a motor vehicle |
| CN106761138A (en) * | 2016-12-30 | 2017-05-31 | 安徽沃杰斯汽车科技有限公司 | A kind of automobile power back door strut |
-
2010
- 2010-09-15 CN CN201020537172XU patent/CN201818174U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101967930A (en) * | 2010-09-15 | 2011-02-09 | 宁波信泰机械有限公司 | Automobile power back door driving mechanism |
| CN104040104A (en) * | 2012-01-12 | 2014-09-10 | 斯塔比卢斯有限责任公司 | Drive device |
| CN104040104B (en) * | 2012-01-12 | 2016-08-17 | 斯塔比卢斯有限责任公司 | Driving means |
| US9605735B2 (en) | 2012-01-12 | 2017-03-28 | Stabilis Gmbh | Drive device |
| CN105658895A (en) * | 2013-09-06 | 2016-06-08 | 博泽（哈尔施塔特）汽车零部件有限公司 | Drive device for a hatch of a motor vehicle |
| CN105658895B (en) * | 2013-09-06 | 2017-11-28 | 博泽（哈尔施塔特）汽车零部件有限公司 | Drive device for the hatch board of motor vehicles |
| CN105019766A (en) * | 2015-07-28 | 2015-11-04 | 深圳市因奥普精电科技有限公司 | Electric supporting rod, control method for electric supporting rod and vehicle |
| CN106761138A (en) * | 2016-12-30 | 2017-05-31 | 安徽沃杰斯汽车科技有限公司 | A kind of automobile power back door strut |
| CN106761138B (en) * | 2016-12-30 | 2019-07-23 | 安徽沃杰斯汽车科技有限公司 | A kind of automobile power back door strut |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110504 Termination date: 20120915 |