CN104242541A - Transmission-driving device - Google Patents
Transmission-driving device Download PDFInfo
- Publication number
- CN104242541A CN104242541A CN201410281831.0A CN201410281831A CN104242541A CN 104242541 A CN104242541 A CN 104242541A CN 201410281831 A CN201410281831 A CN 201410281831A CN 104242541 A CN104242541 A CN 104242541A
- Authority
- CN
- China
- Prior art keywords
- transmission
- receiving element
- drive unit
- transmission mechanism
- drive motor
- Prior art date
- Legal status (The legal status 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 status listed.)
- Granted
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/08—Structural association with bearings
- H02K7/081—Structural association with bearings specially adapted for worm gear drives
Abstract
The invention relates to a transmission-driving device, comprising a driving motor,a driving shaft of which is inserted into a transmission mechanism housing through partial area. The driving shaft is arranged on a bearing on one side toward one side of the transmission mechanism housing. The bearing is accommodated on a base body in a sleeving acceptance element witha matching shape and force. The bearing is arranged in an accommodation part of the transmission mechanism housing. The transmission mechanism housing is inserted into and positioned in theaccommodation part of the transmission mechanism housing. The acceptance element can be positioned in a first axial final position thorugh a backstop element of the driving motor and the acceptance element can be moved on the driving shaft to leave a second axial final position of at least one backstop element by means of a moving element.
Description
Technical field
The present invention relates to a kind of transmission-drive unit as described in the preamble by claim 1.
Background technology
Transmission-drive unit is open by DE 10 2,011 081 043 A1 of applicant.This transmission-drive unit is with in comfort type drive unit, such as glass regulator drive unit, seat adjustment drive unit, sliding top skylight drive unit or similar drive unit in a motor vehicle.The feature of this transmission-drive unit uses the armature shaft with (screw rod) gear teeth, and it is inserted in transmission mechanism housing, connects CD-ROM drive motor (electro-motor) at this transmission mechanism housing upper flange.There, the pairing gear teeth meshing on the roller gear of the gear teeth of armature shaft and the transmission device of single-stage or multi-stage configuration.The supporting of the armature shaft of CD-ROM drive motor typically realizes with three bearing arrangements, and wherein two bearing arrangements are arranged relative to armature with less distance, and the 3rd bearing arrangement is at the end regions of the region internal support armature shaft of transmission mechanism housing.In order to hold the bearing arrangement of the centre of three bearing arrangements, known transmission-drive unit has the receiving element being configured to deep-draw parts, this receiving element its circumferentially power surround bearing arrangement ordinatedly.The installation of known drive unit realizes in multiple steps, and wherein CD-ROM drive motor is provided with holding device and relevant bearing in a first step.Subsequently the construction unit of pre-installation like this is inserted in transmission mechanism housing, and finally receiving element is moved to axial final position from pre-installed position.This point especially realizes by the plug connection be fixed on from the outside on gear/drive unit or as the case lid of moving meter in the prior art, and this case lid joins being configured in the recess in gap portion of holding device when mounted to and is positioned in the angle position determined.Come off in other words to avoid receiving element to lose from bearing arrangement during installation process, described bearing arrangement is fixed in axial pre-installed position by means of multiple lock hook element be especially formed on brush holder during installation process.Although receive the radial loop of element around flange on be provided with accordingly for the receptacle (groove) of each locking member for this reason, this receptacle angle correctly should can receive element relative to armature shaft location in pre-installed position, but prove in practice, receiving element may be arranged on when mistake is installed and deviate from the angle position of predetermined angular position.This infrequently finds when mounted, thus in installation process below, there is following possibility according to the structure of gear/drive unit, can not realize again: the joint receiving element and moving meter, to make receiving member motion in its axial final position.
Summary of the invention
Based on introduced prior art, the object of the invention is to improve the transmission-drive unit as described in the preamble by claim 1, thus eliminate above-mentioned mistake and install, namely receiving element to be arranged on all the time in its predetermined angular position and to eliminate other angle position.This point realizes in the transmission-drive unit with feature described in claim 1 in the following manner by the present invention: described receiving element so constructs, and makes to receive element can only be arranged on about CD-ROM drive motor in the angle position determined.
Provide in the dependent claims by the favourable improvement project of transmission-drive unit of the present invention.
Become easy to make the pre-installation recited above of transmission-drive unit, and especially avoid the loss of receiving element, a kind of structure of the present invention proposes in particularly preferred design, CD-ROM drive motor is arranged at least one, preferred multiple locking member, described locking member is radially resiliently deformable about the longitudinal axis of the driving shaft of CD-ROM drive motor, and in pre-installed position, engaging portion's section, the preferably mounting flange of receiving element, receiving elements relative in the axial displaceability of CD-ROM drive motor for limiting.
In order to receiving element angle is correctly arranged in CD-ROM drive motor, by the present invention proposes, described receiving element or CD-ROM drive motor comprise at least one setting element, join to this setting element form fit one to and are configured in CD-ROM drive motor or receive recess on element in other words in recess.
A kind of structure of setting element proposes in particularly preferred design, and setting element is formed pin-shapedly, and the brush holder that setting element is formed on CD-ROM drive motor is in other words on brush bracket device, and recess arrangement is in the receiving element being configured to deep-draw parts.
Structurally can will need the shape being used for the recess configuration grooving holding setting element.Radially minimum mounting flange is achieved by this structural scheme.
Propose in the particularly preferred structural design scheme of setting element, described setting element exceedes described one or more locking member vertically on the side towards transmission mechanism housing.Thus ensure that and receive element and locking member only first just realizing being connected by when receiving element to be arranged in correct angle position.Realize particularly by following methods: locking member just aims at the corresponding receptacle (such as same with the shape of groove on mounting flange) for locking member, and specifically avoid the possible damage of the locking member caused owing to receiving the incorrect pre-determined bit of angle of element.Do not need thus, namely such as in cross-section king-sized structure locking member special securely in mechanical aspects, because ensure that: locking member is effectively connected with receiving element in correct angle position in other words assigned position.
In another kind of structure of the present invention, preferred design proposes, two setting elements and two locking members are set, wherein setting element and locking member are arranged with 180 ° respectively with mutually staggering, and wherein setting element is arranged with 90 ° respectively relative to locking member with mutually staggering.This layout achieve receive element kinematics on pre-determined bit especially effectively and highly significant, and due to (only) altogether four elements receive element when cost is overall lower by locking member is reliably fixing.
Minimize to make the physical dimension of receiving element and can propose, described locking member is arranged between two projections of radially outward giving prominence to of the mounting flange receiving element.This means: along the circumferential direction in the outside of the projection of mounting flange, this mounting flange can have less diameter.Preferably this blanking process that protrudes through is configured in and is designed on the receiving element of deep-draw parts.
Accompanying drawing explanation
Other advantage of the present invention, characteristic sum details are by description of a preferred embodiment below and draw with reference to the accompanying drawings.There is shown:
Fig. 1 and 2 illustrate in perspective view the part of the CD-ROM drive motor of transmission-drive unit before and after installation brush bracket device and receiving element,
Fig. 3 illustrate in perspective view the CD-ROM drive motor according to Fig. 2 before being installed in transmission mechanism housing,
Fig. 4 illustrate in perspective view the CD-ROM drive motor be arranged on before closing transmission mechanism housing by means of transmission mechanism cap seal in the transmission mechanism housing of remodeling,
Fig. 5 and 6 shows the region for the receiving element of bearing in transmission mechanism shell area before and after installation transmission mechanism case lid with sectional arrangement drawing.
Same parts or the parts with identical function have identical Reference numeral in the accompanying drawings.
Embodiment
Figure 4 illustrates the chief component by transmission-drive unit 10 of the present invention, it is such as in particular as the part of comfort type drive unit (Komfortantrieb), such as glass regulator drive unit, sliding top skylight drive unit, seat adjustment drive unit or the similar drive unit in motor vehicle.Transmission-drive unit 10 comprises the CD-ROM drive motor 11 being configured to (mechanical commutation) motor, and this CD-ROM drive motor is connected with transmission mechanism housing 12 or with Flange joint thereon.Transmission mechanism housing 12 exemplarily has the lower component 13 of outer hull shape, and the upside 14 of its part opens can be closed by means of transmission mechanism case lid 15, especially by means of the threaded joints be not shown specifically or locking connecting portion.
Transmission mechanism housing 12 equally only exemplarily has opening 17(Fig. 3 in the orientation of the longitudinal axis of CD-ROM drive motor 11), this opening is used as insert port, for inserted electronic device is inserted (not shown) together with plug disposed thereon, described plug is used for contacting with the bunch of cables of motor vehicle.In transmission mechanism housing 12, be furnished with single-stage or multistage transmission mechanism, this transmission mechanism have one can see in the diagram, with the roller gear 18 of the outer gear teeth 19.Roller gear 18 also to have on the upside of transmission mechanism housing 12 drive portion section 21 outwardly, and this drive portion section is connected with element, the particularly glass for vehicle window to be regulated of transmission-drive unit 10, sliding top skylight or seat at least indirectly.
The outer gear teeth 19 of roller gear 18 engage with the wheel gear teeth section 22 being configured to drive screw of the driving shaft 23 of CD-ROM drive motor 11.For this reason, from the housing 24 of CD-ROM drive motor 11, outwardly directed subregion 25 extend in transmission mechanism housing 12, for this reason, transmission mechanism housing 12, in the embodiment illustrated lower component 13 have the receptacle 27 of annular, and the subregion 25 of CD-ROM drive motor 11 can be inserted in this receptacle.
As especially found out from Fig. 1 and 2, CD-ROM drive motor 11 comprises armature that be arranged in housing 24 inside, that can not see in the accompanying drawings, and wherein armature shaft 28 forms driving shaft 23 simultaneously.Armature shaft 28 can in axial direction install brush bracket device 30, and this brush bracket device is fixed in its axial location by being press-fitted in housing 24.A such as form that armature shaft 28 is also arranged is the bearing 32 of spherical caps bearing, and its axial location is secured in each position by the retainer ring 31 be arranged on armature shaft 28.This bearing 32 is placed in the receiving element 35 substantially in sleeve shaped, and the cooperation of this receiving component shape and power surround the periphery of bearing 32 ordinatedly in the following manner: bearing 32 is radially fixed on to be received in element 35.Corresponding therewith, the interior diameter of bearing 32 or the overall diameter of armature shaft 28 are accordingly dimensioned such, and bearing 32 can axially be moved on armature shaft 28, and can not change the position in receiving element 35 at this.
Element 35 is received preferably to be formed by plate and be designed to deep-draw parts.This receiving element 35 have on the side of the housing 24 towards CD-ROM drive motor 11 radial loop around flange 36, this flange altogether has four respectively with the recess 37 of 90 ° of channel-shaped be staggeredly arranged as especially can seen according to Fig. 1, wherein can only see two recesses 37 in FIG.Importantly, this recess 37 does not radially reach the cylindrical region 38 receiving element 35, but retains built-in edge 39(Fig. 5 and 6).Recess 37 particularly can be configured in by punch press process step and receive on element 35.In addition, also can recess 37 is configured to different, but the 180 ° of recesses arranged 37 that wherein mutually stagger two be respectively configured to identical.In addition, thus can from Fig. 1,5 and 6 combination see, brush bracket device 30 has two mutually stagger 180 ° of lock hooks arranged 41 and two 180 ° of alignment pins arranged 42 that mutually stagger towards receiving on the side of element 35, wherein so select the cross section of Fig. 5 and 6, thus not only can see lock hook 41, and alignment pin 42 can be seen.Not only lock hook 41 but also alignment pin 42 are preferably formed on and are configured on the brush bracket device 30 of moulding.In addition, lock hook 41 and alignment pin 42 are staggeredly arranged with 90 ° respectively.
Respectively at least substantially parallel to driving shaft 23 extend lock hook 41 and the recess 37 of alignment pin 42 in its angle position and on the flange 36 receiving element 35 alignedly arrange, and for during installation relative to brush bracket device 30 angle correctly install receiving element 35 and axial restraint receiving element 35.For this reason, lock hook 41 so constructs, make this lock hook can strain radially outwardly about the longitudinal axis of armature shaft 28, thus with receiving during the relative motion of element 35, lock hook 41 is radially outward shifted at lock hook 41, and block the built-in edge 39 of recess 37 from behind, thus receive element 35 can not remove from brush bracket device 30 vertically more subsequently and dismantle in other words.As can also be especially found out according to Fig. 5 and 6, importantly, the length L of alignment pin 42 is greater than the length l being longer than lock hook 41 in other words.Thus ensure that, when first attaching troops to a unit in its recess 37 by alignment pin 42 insertion, lock hook 41 can only the acting in conjunction of its corresponding recess 37.Finally the gear teeth element 45 of the sleeve shaped of bearing wheels gear teeth section 22 can be shifted onto on armature shaft 28 and such as to connect by means of pressure there or laser welding connects.
CD-ROM drive motor 11 described herein can be connected by following manner with transmission mechanism housing 12 along the direction of arrow 46 according to Fig. 3: be inserted in receptacle 27 subregion 25 of driving shaft 23.According to Fig. 4, roller gear 18 being installed in transmission mechanism housing 12 by being plugged on axle 47 subsequently, wherein producing between the outer gear teeth 19 and the wheel gear teeth section 22 of driving shaft 23 of roller gear 18 simultaneously and engaging.
Figure 5 illustrates following state: wherein CD-ROM drive motor 11 driving shaft 23 arrive its axial final position be not long ago positioned at transmission mechanism housing 12.In addition, also show following state in Figure 5, wherein receive element 35 to be arranged in installation site, it existed before subregion 25 is inserted in transmission mechanism housing 12.Particularly can find out, receive element 35 radial loop around flange 36 utilize end face 48 to abut on the end face 49 opposed with it of brush bracket device 30.Receive the element 35 therefore direct abutting contact with brush bracket device 30.This position receives the first axial final position of element 35 on driving shaft 23.In addition, bearing 32 abuts on retainer ring 31.
As mentioned above, receive the flange 36 of element 35 by arrange with homogeneous angular distance each other, form blocks from behind for the retaining element of lock hook 41, described retaining element limits receives element 35 on driving shaft 23 along the axial movement in the direction contrary with brush bracket device 30.
In addition, in Figure 5 at bearing 32 with on the opposed side of flange 36, can see recess 51 in the wall receiving element 35, this cove design becomes the form of perforation, and (unlimited) opening of the lower component 13 of this recess and transmission mechanism housing 12 is aimed at.To aim at recess 51 or overlappingly, the receptacle 27 of the annular of transmission mechanism housing 12 has perforation 52 in the wall of receptacle 27, form is that the moving meter of protuberance 53 passes this perforation, and this protuberance is formed on the downside of the second transmission mechanism case lid 15.This protuberance 53 has two chamfered edges or inclined-plane 54,55 on the side towards perforation 52 recess 51 in other words.In addition, the width of protuberance 53 is so matched with the width of perforation 52, makes perforation 52 form the guide portion for protuberance 53 when transmission mechanism case lid 15 is inserted in perforation 52 according to arrow 56.
Following state shown in Figure 5: wherein inclined-plane 54 when installing transmission mechanism case lid 15 according to the direction of arrow 56 just with receive the attaching troops to a unit in its arris 57 abutting contact of the recess 51 of element 35.As found out according to Fig. 6, when continuing to down pressing drive case lid 15 along the direction of arrow 56, protuberance 53 inserts in recess 51 completely, which results in: receive element 35 along direction axial motion on armature shaft 28 of arrow 58, thus form gap 59 between the end face 48 of flange 36 with the end face 49 of the opposed with it of brush bracket device 30.Make to receive element 35 and brush bracket device 30 decoupling by gap 59, which results in and receive the noise decoupling of element 35 and the mechanical load shedding for brush bracket device 30.
Therefore in figure 6, element 35 is received to be arranged on armature shaft 28 in its (second) axial final position.Particularly by transmission mechanism case lid 15 being threaded or being locked in the lower component 13 of transmission mechanism housing 12, ensure that at transmission-drive unit 10 run duration: receive this axial final position of element 35 no longer to change.
In the embodiments of the invention illustrated in figs. 5 and 6, by be designed to protuberance 53 form, the moving meter be formed in transmission mechanism case lid 15 ensure that and receive the second axial final position of element 35.
Transmission-drive unit 10 can in many ways with method modification or amendment, and do not depart from the present invention design.This is, by lock hook 41 and alignment pin 42 correspondingly being arranged or being configured in pre-installed position, receive element 35 relative to CD-ROM drive motor 11 in other words brush bracket device 30 only can be arranged in the angle position determined.Such as can consider, replace receive radial Perfect Ring on element 35 around flange 36, the shorter projection of radially outward giving prominence to is set, thus there is not flange 36 in projection outside, between described projection, arrange alignment pin 42 and lock hook 41.
Claims (11)
1. transmission-drive unit (10), there is CD-ROM drive motor (11), the driving shaft (23) of described CD-ROM drive motor utilizes subregion (25) to be inserted in transmission mechanism housing (12), wherein said driving shaft (23) is arranged in bearing (32) on the side towards described transmission mechanism housing (12), described bearing configuration ordinatedly and power be contained in ordinatedly substantially in sleeve shaped receiving element (35) in, and wherein said bearing (32) is arranged in the receptacle (27) of transmission mechanism housing (12)
It is characterized in that,
Described receiving element (35) so constructs, and described receiving element only can be arranged on about CD-ROM drive motor (11) in the angle position determined.
2. by transmission-drive unit according to claim 1,
It is characterized in that,
Described CD-ROM drive motor (11) is arranged at least one, preferred multiple locking member (41), described locking member radially can flexibly be out of shape about the longitudinal axis of the driving shaft (23) of described CD-ROM drive motor (11), and in pre-installed position, engage portion's section of described receiving element (35), preferably mounting flange (36), for limiting the axial displaceability of described receiving element (35) relative to described CD-ROM drive motor (11).
3. by the transmission-drive unit described in claim 1 or 2,
It is characterized in that,
Described receiving element (35) or described CD-ROM drive motor (11) comprise at least one setting element (42), join to described setting element form fit in a recess (37) be configured on described CD-ROM drive motor (11) or described receiving element (35).
4. by transmission-drive unit according to claim 3,
It is characterized in that,
Described setting element (42) is formed pin-shapedly,-wherein said setting element (42) is preferably arranged at least substantially parallel to described driving shaft (23),-and described setting element (42) be formed on the brush bracket device (30) of described CD-ROM drive motor (11), and described recess (37) is arranged in and is configured on the receiving element (35) of deep-draw parts.
5. by the transmission-drive unit described in claim 3 or 4,
It is characterized in that,
The shape of described recess (37) structure grooving.
6. by the transmission-drive unit according to any one of claim 2 to 5,
It is characterized in that,
Described setting element (42) exceedes described one or more locking member (41) vertically on the side towards described transmission mechanism housing (12).
7. by the transmission-drive unit according to any one of claim 3 to 6,
It is characterized in that,
Two setting elements (42) and two locking members (41) are set, wherein said setting element (42) and described locking member (41) are arranged with 180 ° respectively with mutually staggering, and wherein said setting element (42) is arranged with 90 ° respectively relative to described locking member (41) with mutually staggering.
8. by the transmission-drive unit according to any one of claim 2 to 7,
It is characterized in that,
Described setting element (41) is arranged between two projections of radially outward giving prominence to of the mounting flange (36) of described receiving element (35).
9. by the transmission-drive unit according to any one of claim 1 to 8,
It is characterized in that,
In order to described receiving element (35) being inserted and being positioned in the receptacle (27) of transmission mechanism housing (12) in installation site, in the first axial final position that the stop element (30) that described receiving element (35) can be positioned through described CD-ROM drive motor (11) is determined, and wherein in transmission mechanism housing (12) described driving shaft (23) final position in, described receiving element (35) can be moved on described driving shaft (23) by means of moving meter (53) and axially leave in the second axial final position of at least one stop element (30).
10. by the transmission-drive unit according to any one of claim 1 to 9,
It is characterized in that,
Described receiving element (35) have one with radial loop around the region (38) of wall, and in described wall, construct at least one recess (51), described recess in order to move axially described receiving element (35) and with described moving meter (53) acting in conjunction, wherein said moving meter (53) is configured to the protuberance on the cap member (15) of described transmission mechanism housing (12).
11. by the transmission-drive unit according to any one of claim 1 to 10,
It is characterized in that,
Described moving meter (53) or recess (51) have at least one inclined-plane (54,55), and described inclined-plane causes moving axially of described receiving element (35) when described moving meter (53) works.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE202013005680.0 | 2013-06-24 | ||
| DE201320005680 DE202013005680U1 (en) | 2013-06-24 | 2013-06-24 | Gear drive means |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104242541A true CN104242541A (en) | 2014-12-24 |
| CN104242541B CN104242541B (en) | 2018-10-19 |
Family
ID=48985428
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410281831.0A Active CN104242541B (en) | 2013-06-24 | 2014-06-23 | transmission-driving device |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN104242541B (en) |
| DE (1) | DE202013005680U1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102021108502A1 (en) * | 2021-04-06 | 2022-10-06 | Webasto SE | electric motor |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3537163A (en) * | 1968-04-30 | 1970-11-03 | Robert H Steidl | Method of installing a cylindrical element into a cylindrical bore |
| CN2066634U (en) * | 1990-03-30 | 1990-11-28 | 叶小安 | Protector for torque eliminating adjustion of motor |
| US5511885A (en) * | 1994-02-18 | 1996-04-30 | Xerox Corporation | Composite flanged bearing having anti-rotation feature |
| CN1822476A (en) * | 2005-02-15 | 2006-08-23 | 自动车电机工业株式会社 | Actuator device |
| CN1942686A (en) * | 2004-03-03 | 2007-04-04 | Stm股份公司 | Operating or transmission machine with an adaptor member for connection to a mechanical member of a motor |
| CN101443986A (en) * | 2006-05-17 | 2009-05-27 | 马渊马达株式会社 | Motor equipped with reducer and method of manufacturing the same |
| WO2013023822A1 (en) * | 2011-08-16 | 2013-02-21 | Robert Bosch Gmbh | Transmission drive assembly |
| CN103262393A (en) * | 2010-12-29 | 2013-08-21 | 罗伯特·博世有限公司 | Device for mounting a shaft in a housing, and assembly having a device according to the invention |
-
2013
- 2013-06-24 DE DE201320005680 patent/DE202013005680U1/en not_active Expired - Lifetime
-
2014
- 2014-06-23 CN CN201410281831.0A patent/CN104242541B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3537163A (en) * | 1968-04-30 | 1970-11-03 | Robert H Steidl | Method of installing a cylindrical element into a cylindrical bore |
| CN2066634U (en) * | 1990-03-30 | 1990-11-28 | 叶小安 | Protector for torque eliminating adjustion of motor |
| US5511885A (en) * | 1994-02-18 | 1996-04-30 | Xerox Corporation | Composite flanged bearing having anti-rotation feature |
| CN1942686A (en) * | 2004-03-03 | 2007-04-04 | Stm股份公司 | Operating or transmission machine with an adaptor member for connection to a mechanical member of a motor |
| CN1822476A (en) * | 2005-02-15 | 2006-08-23 | 自动车电机工业株式会社 | Actuator device |
| CN101443986A (en) * | 2006-05-17 | 2009-05-27 | 马渊马达株式会社 | Motor equipped with reducer and method of manufacturing the same |
| CN103262393A (en) * | 2010-12-29 | 2013-08-21 | 罗伯特·博世有限公司 | Device for mounting a shaft in a housing, and assembly having a device according to the invention |
| WO2013023822A1 (en) * | 2011-08-16 | 2013-02-21 | Robert Bosch Gmbh | Transmission drive assembly |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104242541B (en) | 2018-10-19 |
| DE202013005680U1 (en) | 2013-07-11 |
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