CN202006739U - Electric lift adjusting device for automobile seat - Google Patents
Electric lift adjusting device for automobile seat Download PDFInfo
- Publication number
- CN202006739U CN202006739U CN2011200021917U CN201120002191U CN202006739U CN 202006739 U CN202006739 U CN 202006739U CN 2011200021917 U CN2011200021917 U CN 2011200021917U CN 201120002191 U CN201120002191 U CN 201120002191U CN 202006739 U CN202006739 U CN 202006739U
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- Prior art keywords
- worm
- gear
- control apparatus
- electric
- down control
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Abstract
The utility model discloses an electric lift adjusting device for an automobile seat, which comprises a reduction box, a reduction box cover, a driving motor and a retarding mechanism. The retarding mechanism comprises a worm gear transmission mechanism and a planetary retarding mechanism; a mounting cavity includes a worm containing cavity; an output shaft of the driving motor extends into the worm containing cavity; a worm in the worm gear transmission mechanism is positioned in the worm containing cavity and mounted on the output shaft of the driving motor; a spring mounting cavity is arranged on one side of the worm containing cavity positioned at the tail end of the output shaft of the driving motor; the spring mounting cavity is axially communicated with the worm containing cavity; an adjusting spring and a spring seat are mounted in the spring mounting cavity; and the spring seat is pressed on the end face of the tail end of the worm by the adjusting spring. The axial position of the worm is limited by the adjusting spring, the axial clearance of the output shaft of the driving motor is eliminated, and the requirements of the reduction box and the worm on tolerance are lowered, so that manufacturing cost is reduced.
Description
Technical field
The utility model belongs to the automotive seat designing technique, relates in particular to a kind of electric up-down control apparatus of automotive seat.
Background technology
The employed elevation and subsidence regulating device of automobile chair is divided into electronic and manual two kinds of forms according to user's configuration needs unusual.Motorized adjustment device in the market mainly adopts motor driven drop-gear box system to make chaufeur or passenger reach comfortable seating position.Almost all to face volume big for the used actuating device on the market, and quality is heavy, the component parts complexity, and the system authority gap is big, and intensity is low, and problems such as inconvenience are installed.While is low because of its driving efficiency, output torque is limited, and general spring boost system that all need be extra reaches the adjusting requirement of automotive seat to speed to help it.What is more important, under automobile was subjected to impact events, their static strength was limited, with harm passenger's safety.
DE10 2004 040602A1 disclose a kind of electric up-down control apparatus that is driven planetary gear speed reducing mechanism by drive motor by a Worm and worm-wheel gearing, its Worm and worm-wheel gearing and planetary gear speed reducing mechanism are installed in the installation cavity that is defined by deceleration box and gear box cover, worm screw in the Worm and worm-wheel gearing is installed on the output shaft of drive motor, and the lift adjustment gear is installed on the output shaft of planetary gear speed reducing mechanism.In order to keep Worm and worm-wheel gearing transmission transferring power reposefully, realize the noiseless transmission simultaneously, as a rule to limit the axial location of worm screw, can there be the gap engagement with worm gear to guarantee worm screw, guarantee that again worm drive is flexible simultaneously.For this reason just need be in deceleration box, worm screw one end is provided with worm shaft to position limiting structure, to guarantee the axial location of worm screw.Because all there is tolerance in the manufacturing of drive motor installation and deceleration box, worm screw, in case these tolerance stack, tend to cause worm shaft gap or minus tolerance between position limiting structure and worm screw, to occur, if the gap, then axial motion can take place in worm screw, and if minus tolerance, the resistance that then can cause worm screw to rotate increases, increase thereby cause drive motor to drive load, cause the drive motor heating, bring harm to use.Therefore when making deceleration box and worm screw, just need strict control tolerance, cause the increase of manufacturing cost so again.
Only be to rely on three thread-forming screws to be connected between gear box cover in the above-mentioned in addition electric up-down control apparatus and the tooth plate; under automobile is subjected to impact events; seat is passed to the lift adjustment gear with power; and the output shaft of lift adjustment gear by planetary gear speed reducing mechanism is passed to gear box cover with power; cause thread-forming screw to be cut off easily; therefore in order to protect passenger's safety, need select the high thread-forming screw of intensity usually for use, so also increase the cost and the weight of electric up-down control apparatus.
Moreover the disclosed electric up-down control apparatus of DE1 02004 040602A1, the bolt that this electric up-down control apparatus is installed on the cushion frame wallboard separates with gear box cover, installs very inconvenient like this.
The utility model content
Technical problem to be solved in the utility model is to provide a kind of electric up-down control apparatus of automotive seat, to overcome the existing existing deficiency of electric up-down control apparatus.
Technical problem to be solved in the utility model can be achieved through the following technical solutions:
A kind of electric up-down control apparatus of automotive seat comprises deceleration box, is installed in gear box cover, the drive motor on the deceleration box and is installed in speed reduction gearing in the installation cavity that is defined by deceleration box and gear box cover by fastener; Described speed reduction gearing comprises Worm and worm-wheel gearing and planetary gear speed reducing mechanism; Described installation cavity comprises a worm screw container cavity, the output shaft of described drive motor extends in this worm screw container cavity, worm screw in the Worm and worm-wheel gearing is arranged in described worm screw container cavity and is installed on the output shaft of drive motor, it is characterized in that, a side that is positioned at the output shaft tail end of drive motor at described worm screw container cavity is provided with a spring installation cavity, the axial perforation of this spring installation cavity and described worm screw container cavity; One regulating spring and a spring perch are installed in described spring installation cavity, and described regulating spring is pressed in described spring perch on the end face of described worm screw tail end.
The utility model limits the axial location of worm screw by regulating spring, eliminated the endplay of the output shaft of drive motor, both guaranteed that worm screw can not have the gap engagement with worm gear, simultaneously guarantee that again worm drive is flexible, relax the tolerance of deceleration box and worm screw simultaneously, thereby reduced manufacturing cost.
Planetary gear speed reducing mechanism of the present utility model comprises a gear ring plate and some planetary wheels, the internal gearing of described planetary wheel and gear ring plate, described gear ring plate is installed between the attachment face and described gear box cover on the described deceleration box by described fastener, is provided with at least one inter-embedding type between described gear ring plate and the described gear box cover and strengthens connection structure.
Described inter-embedding type is strengthened connection structure and is comprised flanging that is arranged on the gear box cover periphery and the breach that is arranged on the gear ring plate periphery, and described flanging is embedded in the described breach during installation.
Described inter-embedding type is strengthened connection structure and is comprised projection that is arranged on the gear box cover and the groove that is arranged on the gear ring plate periphery, and during installation, described projection is embedded in the described groove.
The utility model is strengthened connection structure by inter-embedding type is set between gear ring plate and gear box cover, reduced relative motion between gear ring plate and gear box cover to the shear action of thread-forming screw, improve the static strength of deceleration box, be increased in the safety of seat under the collision situation.
For convenience whole electric up-down control apparatus is installed on the cushion frame wallboard, is provided with several bolt rivet clasp positions at the periphery of described gear box cover, and rivet clasp has bolt on each bolt rivet clasp position.
Adopt interference fit to be connected between the output shaft of described worm screw and described drive motor.
Described output shaft is provided with straight knurling.
Described drive motor is a DC machine.
Worm screw in the described Worm and Worm Gear Driving mechanism is the metal worm screw, and described worm gear is plastics worm gear or half envelope plastics worm gear.
Described deceleration box is a Plastic Parts.
Electric up-down control apparatus of the present utility model is reformed on the basis of existing automotive seat electric up-down control apparatus, make the structure of this device little, in light weight, self-lock force is big, safety is good, has increased the ease for operation of regulating, and noise level is reduced greatly.
Description of drawings
Fig. 1 is an electric up-down control apparatus schematic perspective view of the present utility model.
Fig. 2 is the A-A cutaway view of Fig. 1.
Fig. 3 is the B-B cutaway view of Fig. 1.
Fig. 4 is the exploded perspective view of electric up-down control apparatus of the present utility model.
Fig. 5 is the structural representation of pinion carrier transmission component of the present utility model.
Fig. 6 is the annexation scheme drawing between the utility model drive motor output shaft and the worm gear.
Fig. 7 is the structural representation of the utility model gear ring plate.
Fig. 8 is the structural representation of the utility model gear box cover.
Fig. 9 is the assembling scheme drawing between gear ring plate of the present utility model and the gear box cover.
Figure 10 is the utility model electric up-down control apparatus and seat frame skeleton bonded assembly outside schematic perspective view.
Figure 11 is the utility model electric up-down control apparatus and the inboard schematic perspective view of seat frame skeleton bonded assembly.
The specific embodiment
For technological means, creation characteristic that the utility model is realized, reach purpose and effect is easy to understand, below in conjunction with concrete diagram, further set forth embodiment of the present utility model.
Referring to Fig. 1 to Fig. 4, the electric up-down control apparatus shown in the figure comprises drive motor 100, deceleration box 200, gear box cover 300 and speed reduction gearing.Drive motor 100 is a DC machine, and deceleration box 200 is a Plastic Parts, and gear box cover 300 is a metal piece.
In conjunction with referring to Fig. 6, drive motor 100 is installed on the deceleration box 200 by thread-forming screw 110, and the output shaft 120 of drive motor 100 extends in this worm screw container cavity 210, has rolled straight knurling 121 at the output shaft 120 of drive motor 100.
Speed reduction gearing comprises Worm and worm-wheel gearing and planetary reduction gear parts, referring to Fig. 3, the worm screw 410 in the Worm and worm-wheel gearing is arranged in worm screw container cavity 210, and worm screw 410 is the metal hollow worm screw, its endoporus utilizes the steel ball extrusion process, improves the straightness accuracy in degree of finish and hole.Adopt interference fit to be connected between the output shaft 120 of worm screw 410 and drive motor 100.
A side that is positioned at output shaft 120 tail ends of drive motor 100 at worm screw container cavity 210 is provided with a spring installation cavity 250, the axial perforation of this spring installation cavity 250 and worm screw container cavity 210; One regulating spring 430 and a spring perch 440 are installed in spring installation cavity 250, and regulating spring 430 is pressed in spring perch 440 on the end face of worm screw 410 tail ends.Limit the axial location of worm screw 410 by regulating spring 430, eliminated the endplay of the output shaft 120 of drive motor 100, both guaranteed that worm screw 410 can not have the gap engagement with worm gear, guarantee simultaneously worm screw 410 ensuring smooth transmission again, relax the tolerance of deceleration box 200 and worm screw 410 simultaneously, thereby reduced manufacturing cost.
In conjunction with referring to Fig. 5, the planetary reduction gear parts comprise sun gear 510, four planetary wheels 520, pinion carrier transmission component 530 and gear ring plates 540.Pinion carrier transmission component 530 comprises that a wheel disc 531, a band tooth have strong market potential 532, and have strong market potential 532 pin end 532a of band tooth passes the centre hole of wheel disc 531 and is fastenedly connected with wheel disc 531.Sun gear 510 is enclosed within have strong market potential 532 pin end 532a of band tooth and goes up and extend in the interior perforation 422 of worm gear 420, with interior perforation 422 engagements.On the band tooth of wheel disc 531 is had strong market potential 532 the extended side 531a of pin end 532a, four compensating-gear shafts 533 are installed, four compensating-gear shafts 533 are uniform around have strong market potential 532 pin end 532a of band tooth, be with 520, four planetary wheels of a planet gear 520 and sun gear 510 engagements on each root compensating-gear shaft 533.Have strong market potential 532 increment of band tooth is provided with lift adjustment gear 532b.Certainly planetary wheel 520 also can be one or more, so compensating-gear shaft 533 also can make one or more.
For the relative motion that prevents 300 of gear ring plate 540 and gear box covers shear action to thread-forming screw 310, improve the static strength of deceleration box 200, be increased in the safety of seat under the collision situation, between gear ring plate 540 and gear box cover 300, be provided with at least one inter-embedding type and strengthen connection structure.
Referring to Fig. 7, Fig. 8 and Fig. 9, this inter-embedding type is strengthened connection structure and is comprised flanging 320 that is arranged on gear box cover 300 peripheries and the breach 542 that is arranged on gear ring plate 540 peripheries, and flanging 320 is embedded in the breach 542 during installation.This inter-embedding type is strengthened connection structure can also comprise projection 330 that is arranged on the gear box cover 300 and the groove 543 that is arranged on gear ring plate 540 peripheries, and during installation, projection 330 is embedded in the groove 543.By being set, inter-embedding type strengthens connection structure between gear ring plate 540 and gear box cover 300, reduced the shear action of the relative motion of 300 of gear ring plate 540 and gear box covers to thread-forming screw 310, improve the static strength of deceleration box, be increased in the safety of seat under the collision situation.
For convenience whole electric up-down control apparatus is installed on the cushion frame wallboard, is provided with three bolt rivet clasp positions 340 at the periphery of gear box cover 300, and rivet clasp has bolt 350 on each bolt rivet clasp position 340.
Referring to Figure 10 and Figure 11, the cushion frame connecting panel 610 of seat is installed on the chair slide 620, electric up-down control apparatus of the present utility model is installed in the outside of cushion frame connecting panel 610, lift adjustment gear 532b in the electric up-down control apparatus and 630 engagements of seat tooth plate, drive seat tooth plate 630 and produce motion around the P point, move together thereby drive seat frame skeleton, realize the purpose of lifting.
More than show and described groundwork of the present utility model and principal character and advantage of the present utility model.The technical personnel of the industry should be understood; the utility model is not restricted to the described embodiments; that describes in the foregoing description and the specification sheets just illustrates principle of the present utility model; under the prerequisite that does not break away from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall in claimed the utility model scope.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (11)
1. the electric up-down control apparatus of automotive seat comprises deceleration box, is installed in gear box cover, the drive motor on the deceleration box and is installed in speed reduction gearing in the installation cavity that is defined by deceleration box and gear box cover by fastener; Described speed reduction gearing comprises Worm and worm-wheel gearing and planetary gear speed reducing mechanism; Described installation cavity comprises a worm screw container cavity, the output shaft of described drive motor extends in this worm screw container cavity, worm screw in the Worm and worm-wheel gearing is arranged in described worm screw container cavity and is installed on the output shaft of drive motor, it is characterized in that, a side that is positioned at the output shaft tail end of drive motor at described worm screw container cavity is provided with a spring installation cavity, the axial perforation of this spring installation cavity and described worm screw container cavity; One regulating spring and a spring perch are installed in described spring installation cavity, and described regulating spring is pressed in described spring perch on the end face of described worm screw tail end.
2. the electric up-down control apparatus of automotive seat as claimed in claim 1 is characterized in that, described planetary gear speed reducing mechanism comprises a gear ring plate and some planetary wheels, the internal gearing of described planetary wheel and gear ring plate.
3. the electric up-down control apparatus of automotive seat as claimed in claim 2, it is characterized in that, described gear ring plate is installed between the attachment face and described gear box cover on the described deceleration box by described fastener, is provided with at least one inter-embedding type between described gear ring plate and the described gear box cover and strengthens connection structure.
4. the electric up-down control apparatus of automotive seat as claimed in claim 3, it is characterized in that, described inter-embedding type is strengthened connection structure and is comprised flanging that is arranged on the gear box cover periphery and the breach that is arranged on the gear ring plate periphery, and described flanging is embedded in the described breach during installation.
5. as the electric up-down control apparatus of claim 3 or 4 described automotive seat, it is characterized in that, described inter-embedding type is strengthened connection structure and is comprised projection that is arranged on the gear box cover and the groove that is arranged on the gear ring plate periphery, and during installation, described projection is embedded in the described groove.
6. the electric up-down control apparatus of automotive seat as claimed in claim 1 is characterized in that, is provided with several bolts riveted joint maintenances at the periphery of described gear box cover, and rivet clasp has bolt on each bolt rivet clasp position.
7. the electric up-down control apparatus of automotive seat as claimed in claim 1 is characterized in that, adopts interference fit to be connected between the output shaft of described worm screw and described drive motor.
8. the electric up-down control apparatus of automotive seat as claimed in claim 7 is characterized in that, described output shaft is provided with straight knurling.
9. the electric up-down control apparatus of automotive seat as claimed in claim 1 is characterized in that, described drive motor is a DC machine.
10. the electric up-down control apparatus of automotive seat as claimed in claim 1 is characterized in that, the worm screw in the described Worm and Worm Gear Driving mechanism is the metal worm screw, and the worm gear in the described Worm and Worm Gear Driving mechanism is plastics worm gear or half envelope plastics worm gear.
11. the electric up-down control apparatus of automotive seat as claimed in claim 1 is characterized in that, described deceleration box is a Plastic Parts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200021917U CN202006739U (en) | 2011-01-06 | 2011-01-06 | Electric lift adjusting device for automobile seat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200021917U CN202006739U (en) | 2011-01-06 | 2011-01-06 | Electric lift adjusting device for automobile seat |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202006739U true CN202006739U (en) | 2011-10-12 |
Family
ID=44748399
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200021917U Expired - Lifetime CN202006739U (en) | 2011-01-06 | 2011-01-06 | Electric lift adjusting device for automobile seat |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202006739U (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102377280A (en) * | 2011-11-08 | 2012-03-14 | 东阳市东政电机有限公司 | Electric motor with dual output shafts |
| CN103101455A (en) * | 2013-01-22 | 2013-05-15 | 上海延锋江森座椅有限公司 | Seat electric lifting adjusting device provided with damping structure |
| CN104015635A (en) * | 2014-06-12 | 2014-09-03 | 上海延锋江森座椅有限公司 | Electric lifting adjusting device for seat |
| CN106151384A (en) * | 2015-04-16 | 2016-11-23 | 苏州欧复能新材料科技有限公司 | A kind of right angle drive reduction box |
| CN106787426A (en) * | 2016-12-20 | 2017-05-31 | 安徽沃杰斯汽车科技有限公司 | A kind of automobile power back door reducing motor |
| DE102015224535A1 (en) * | 2015-12-08 | 2017-06-08 | Robert Bosch Gmbh | Gear drive device |
| CN106917560A (en) * | 2015-12-25 | 2017-07-04 | 德昌电机(深圳)有限公司 | Drive mechanism and the vehicle using the drive mechanism |
| CN107850189A (en) * | 2015-07-09 | 2018-03-27 | 安道拓卢森堡控股有限公司 | Reduction gearing and gear motor |
| WO2019205972A1 (en) * | 2018-04-26 | 2019-10-31 | 广东肇庆爱龙威机电有限公司 | Adjustment driver for car seat |
-
2011
- 2011-01-06 CN CN2011200021917U patent/CN202006739U/en not_active Expired - Lifetime
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102377280A (en) * | 2011-11-08 | 2012-03-14 | 东阳市东政电机有限公司 | Electric motor with dual output shafts |
| CN103101455A (en) * | 2013-01-22 | 2013-05-15 | 上海延锋江森座椅有限公司 | Seat electric lifting adjusting device provided with damping structure |
| CN103101455B (en) * | 2013-01-22 | 2015-05-27 | 上海延锋江森座椅有限公司 | Seat electric lifting adjusting device provided with damping structure |
| CN104015635A (en) * | 2014-06-12 | 2014-09-03 | 上海延锋江森座椅有限公司 | Electric lifting adjusting device for seat |
| CN104015635B (en) * | 2014-06-12 | 2016-07-06 | 上海延锋江森座椅有限公司 | Seat electric lift adjusting device |
| CN106151384A (en) * | 2015-04-16 | 2016-11-23 | 苏州欧复能新材料科技有限公司 | A kind of right angle drive reduction box |
| CN107850189A (en) * | 2015-07-09 | 2018-03-27 | 安道拓卢森堡控股有限公司 | Reduction gearing and gear motor |
| DE102015224535A1 (en) * | 2015-12-08 | 2017-06-08 | Robert Bosch Gmbh | Gear drive device |
| CN106917560A (en) * | 2015-12-25 | 2017-07-04 | 德昌电机(深圳)有限公司 | Drive mechanism and the vehicle using the drive mechanism |
| CN106787426A (en) * | 2016-12-20 | 2017-05-31 | 安徽沃杰斯汽车科技有限公司 | A kind of automobile power back door reducing motor |
| WO2019205972A1 (en) * | 2018-04-26 | 2019-10-31 | 广东肇庆爱龙威机电有限公司 | Adjustment driver for car seat |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Kang Road, Pudong New Area Kangqiao Industrial Zone of Shanghai City, No. 669, 201315 Patentee after: Yanfeng Daotuo Ann seat Co. Address before: Kang Road, Pudong New Area Kangqiao Industrial Zone of Shanghai City, No. 669, 201315 Patentee before: Shanghai Yanfeng Johnson Controls Seating Co., Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20111012 |