CN103460524A - Slip ring for transmitting electrical signals - Google Patents
Slip ring for transmitting electrical signals Download PDFInfo
- Publication number
- CN103460524A CN103460524A CN2012800135169A CN201280013516A CN103460524A CN 103460524 A CN103460524 A CN 103460524A CN 2012800135169 A CN2012800135169 A CN 2012800135169A CN 201280013516 A CN201280013516 A CN 201280013516A CN 103460524 A CN103460524 A CN 103460524A
- Authority
- CN
- China
- Prior art keywords
- slip ring
- matrix
- slide rail
- aforementioned
- rail
- 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.)
- Pending
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R39/00—Rotary current collectors, distributors or interrupters
- H01R39/02—Details for dynamo electric machines
- H01R39/08—Slip-rings
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R39/00—Rotary current collectors, distributors or interrupters
- H01R39/02—Details for dynamo electric machines
- H01R39/14—Fastenings of commutators or slip-rings to shafts
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R39/00—Rotary current collectors, distributors or interrupters
- H01R39/02—Details for dynamo electric machines
- H01R39/08—Slip-rings
- H01R39/10—Slip-rings other than with external cylindrical contact surface, e.g. flat slip-rings
Landscapes
- Motor Or Generator Current Collectors (AREA)
- Rolling Contact Bearings (AREA)
Abstract
The present invention relates to a slip ring for transmitting electrical signals between a non-rotating part and a part rotating relative thereto, wherein the slip ring consists of a ring-shaped basic body and at least one slideway arranged on a face of the basic body. In order to develop corresponding slip rings in such a way that corresponding bearings of rotating slip rings and possibly also the contact paths of the slip rings are subjected to a less severe load during use, the invention proposes that the basic body has cutouts or cavities.
Description
The present invention relates to a kind of slip ring with annular matrix, wherein at least one conductor rail extends along at least one surface of matrix in the mode of basic annular equally.
Can arrange a plurality of conductor rails at this matrix place simultaneously, or rather, be arranged in same locate and the difference of matrix relatively or face place at an angle to each other.Generally speaking this matrix is made by insulating material, but at least conductive contact rail and matrix electric insulation.In the situation that a plurality of conductor rails, even the electrical connection of two conductor rails in principle in described a plurality of conductor rail is possible, these conductor rails are also relative to each other insulation generally speaking.
Known slip ring has solid matrix mostly, and described matrix is for example by plastics or especially made by epoxy resin.Therefore described matrix is relatively heavier and causes load to the bearing of slip ring, and also may cause load to described contact-making surface when contact-making surface contacts with corresponding static pairing contact site during the slip ring rotation.Therefore conductor rail is also referred to as " slide rail ".
With respect to prior art, the present invention based on task be, corresponding slip ring is improved to the corresponding bearing of the slip ring made in rotation and possibly the conductor rail of slip ring in use be subject to lower load.
This task solves in the following way: the matrix of such slip ring has cavity, and wherein said cavity reduces weight and the quality of slip ring or matrix.
Aptly, described cavity is provided so that in described matrix its mechanical stability is not subject to the appreciable impact of described cavity.Especially suitable, described cavity is along the circle distribution of described slip ring, so that on the axle of the annular of the barycenter of described matrix in being limited by described matrix.
The quality of described matrix also should distribute on how much annulars, so that unbalanced moments or centrifugal moment are not occurring when annular shaft is rotated.
Described conductor rail also should correspondingly be arranged as with the axle of described matrix and be Rotational Symmetry.
Described cavity should altogether account for matrix bulk volume at least 30%, preferably at least 75%.At this, " bulk volume " should be interpreted as, the external dimensions based on matrix can determine, and comprises the cavity in matrix, and do not comprise the volume that takies of conductor rail.
At this, matrix serves as mechanical support body and the spacing washer of slide rail, and in addition for being mechanically anchored in for example bearing place.
For slip ring being realized lighter and more cheap, the material that can use expanded material or construct with alveolate texture.By foam or honeycomb, need significantly less material, and therefore in the situation that the roughly the same weight that reduced of intensity.This expanded material has basically closed hole aptly.But, according to application, also can use open-cell material for matrix.
At this, in one embodiment, slip ring can have rectangular cross section, make it for example present the shape of the planar annular disk with two parallel circle anchor rings, wherein on one or two anchor ring, there are respectively one or more parallel, annular, circular conductor rails more precisely.
Described conductor rail also can be arranged on the cylindrical form interior surface of annular matrix or on cylindrical outer surface, or it also can be along the cylindrical or conical inner surface of respective rings or along cylindrical or conical external surface.
This ring can also have other cross sections, for example U-shaped section, and wherein slide rail for example can be arranged on the inner surface of U-shaped side.
Described conductor rail can be distinguished a little from the surface of respective face outstanding, or also can be concordant with described surface and/or be lowered.
Described conductor rail can be in the one side for example, by the material that there is on a large scale cavity, made by the pore metal foam.
Another possibility is, from continuous matrix, do not manufacture slip ring, but uses each fragment or spacing washer, and described fragment or spacing washer are only for example, by slide rail itself or by the mechanical assistance structure, one or more closed hoops fix.
At this, conductor rail not necessarily the slide rail on letter, with corresponding pairing contact site direct mechanical, contact or sliding contact, but the present invention more precisely also comprises following " slip ring ": the conductor rail of this slip ring contactlessly, through corresponding pairing contact site, makes the signal of telecommunication for example transmit by air gap with electric capacity or inductance mode.
In addition, term " signal of telecommunication " also is not limited to " signal " of narrow sense, but comprises any form of transmission of electric signals, especially also comprises for moving the energy of powerplant module, motor etc.
Matrix can be also the part of bearing, inner loop or the external rings of for example ball bearing, or it also can consist of the electric insulation intermediate layer between such bearer ring.
Slide rail can be fixed in fragment or spacing washer place or fragment or spacing washer.At this, it is contemplated that the connection of power cooperation or form fit.In the situation that the connection of form fit, it is recessed that slide rail can have side, or at base portion, be implemented as widelyr, for example is implemented as the shape of dovetail section.Being fixed in of form fit is can be so that fragment or spacing washer are heated, until can insert slide rail.When cooling, fragment or spacing washer shrink again, and are therefore the connections of form fit.Certainly also possibly, fragment or spacing washer are made by flexible material, this material surround the shape of slide rail and for example by as in the situation that the sclerosis plastics or resin and continue its shape of maintenance after form fit produces.
As mentioned above, can be in order to reduce the cost of slip ring, especially in the situation that dish-shaped slip ring replaces plastic substrate with plastic coating and spacing washer.At this, plastic coating is positioned at the position that slip ring has contacted with the metal accommodation section of slip ring.In the situation that the computerized tomography art, this be for example so-called " support (Bracket) ".As required, insert the spacing washer be made of plastics between slide rail, in order to improve stability.These spacing washers for example can be implemented to clip, described clip can hook into to form fit the preprepared groove of slide rail or side recessed in.Slide rail itself can be made rather than be made by solid material by hollow profile for saving in weight or material, described hollow profile can be rolled-up with as slide rail.In the traction process of hollow profile, can in section bar, realize a little that side is recessed, groove or inclined-plane, these sides are recessed, groove or inclined-plane be then for being fixed on slide rail carriage (Auflage), each fragment and/or spacing washer.
If the mechanical carriage of slip ring does not conduct electricity, the possibility also existed is, as mentioned above, for example by screwing, riveted or the bonding section bar of directly installing for slide rail.
For the framework that is fixed with the bearing of slip ring and/or slip ring above inciting somebody to action is implemented gentlyer and more cheap equally, the material that at this, also can use expanded material or be constructed to alveolate texture.By foam or honeycomb, need significantly less material, and not appreciable impact intensity.
In the situation that slip ring, also integrated capacitive character data transmission unit except classical slide rail usually.The use of this capacitive character data transmission unit is in the situation that High Data Rate causes the EMV problem risen.In order to reduce described problem, will send structure or transmitting antenna and be arranged on the edge of U-shaped groove.The back side is implemented to ground connection.Reception antenna vertically is immersed in groove.Therefore, the device of capacitive character data transmission unit becomes significantly compacter and utilizes the ground connection conductively-closed in three sides, and this has improved antijamming capability and has reduced electromagnetic radiation.In the situation that the respective depth of groove, field distribution can be constructed to make and there is no that field leaves groove.In addition, by the possibility of using the U-shaped groove to provide, be, by described groove in the situation that be configured as ring for making slip-ring device stable.
Independent of one another but feature also can combination with one another of the present invention draws from following feature is enumerated:
1. slip ring or rotation transmission device, it consists of slip ring body and slide rail.
2. the slip ring body is made by expanded material or the material that is configured to alveolate texture.
3. the slip ring body is not closed body.
4. the slip ring body consists of each fragment or spacing washer.
5. fragment or spacing washer for example, by slide rail itself or by the mechanical assistance basic function, one or more closed hoops fix.
6. slide rail is not in the situation that have matrix directly to be placed on bearing or place, existing machinery accommodation section.
7. slide rail is not in the situation that have matrix directly to be fixed on bearing or existing machinery accommodation section place, but utilizes the intermediary element of electric insulation to fix, and described intermediary element is placed between slide rail and mechanical accommodation section or bearing.
8. slide rail coordinates by power or the connection of form fit is fixed in fragment or spacing washer place or fragment or spacing washer.
9. slide rail is made by hollow profile.
10. slide rail is rolled into from hollow profile.
11. slide rail has in section bar, and side is recessed, groove and/or inclined-plane.
12. slip ring has the capacitive character data transmission unit.
13. the capacitive character data transmission unit has the structure of transmission or transmitting antenna in the edge of U-shaped groove.
Additional advantage of the present invention, feature and application possibility become obvious in the description to preferred implementation and relevant drawings below.Accompanying drawing illustrates:
Fig. 1 shows the cross section of the slip ring of being made by expanded material;
Fig. 2 shows the cross section of slip ring, and the matrix of described slip ring has honeycomb;
Fig. 3 shows the slip ring consisted of fragment;
Fig. 4 shows the spacing washer for two adjacent rail-engagings;
Fig. 5 shows the cross section of the conductor rail of being made by hollow profile;
Fig. 6 shows another cross section of the alternative conductor rail with hollow profile form that side is recessed;
Fig. 7 shows in the U-shaped section or has the layout of contactless " slip ring " and the corresponding pairing contact site of U-shaped section.
Can identify slip ring in Fig. 1, it consists of matrix 2 and two slide rails being placed in a determining deviation on the face of matrix.This slide rail can be for example disk, its imaginary axis is in Fig. 1 on the vertical direction in the right in matrix 1 or the left side, sign plane, but it can be also the hollow cylinder annular solid, the axle of this hollow cylinder annular solid in Fig. 1 with the surface one-tenth level that comprises slide rail with parallel.The face that slide rail or conductor rail are partly put into respect to it is outstanding, makes matrix during the pairing contact site slides on slide rail not contact with pairing contact site or its holding device.
Slide rail is therefore also outstanding from the corresponding face of matrix a little, in any case wherein these slide rails all wear and tear gradually when contacting with corresponding pairing contact site.The pairing contact site can elasticity be laid for this reason.
Fig. 2 shows similar slip ring, wherein rotating shaft can extend along the horizontal or vertical direction in paper plane equally, wherein matrix 2 for example can consist of honeycomb grid, described grid is all sealed by corresponding coverage rate in all sides, perhaps also cellular cavity can be arranged on to all the other in solid plastic body, described plastic body has corresponding partition between adjacent hexagonal cavities.
Fig. 3 shows the vertical view of the slip ring through segmentation of disc-shaped, and wherein the disc-shaped matrix consists of four fragment 5a, 5b, 5c and 5d.Therefore the axle that conductor rail 1e is arranged to about fragment 5a-5d is Rotational Symmetry, and wherein the fracture gap between adjacent segment is bridged by slide rail 1e, and slip ring or matrix are bonded together.The fracture gap also can be larger, and each fragment can be made by the material with cavity in the one side.
Fig. 4 shows spacing washer, can insert the conductor rail for example had according to the cross section of Fig. 5 in the trapezoidal recess of described spacing washer, wherein a plurality of such spacing washers are along the circumference of corresponding contact rail 7, and spacing washer can be arranged on corresponding supporting mass, on for example bearer ring in the end face side or in cylindrical outer side or inboard place.
Fig. 6 only shows another cross section of corresponding contact rail, and described conductor rail can be held by the holding element of corresponding coupling equally.
Fig. 7 can explain in two ways and two kinds of explanation possibilities all cause a flexible program of the present invention separately.According to the first flexible program, Fig. 7 shows the part cross section of annulus flaky matrix 11, the both sides that this annulus flaky matrix 11 is relative at it have respectively conductor rail 14a and 14b, described conductor rail can rupture in a circumferential direction when each contact-making surface should be independently controlled, wherein circumferencial direction at this perpendicular to paper plane, that is to say, the axle of disk 11 is positioned on Fig. 7, and will with paper plane in the horizontal line almost parallel.
At this, element 14a, 14b for example can serve as reception antenna, and element 13a, 13b can be transmitting antennas.In this way, can between antenna is to 13a, 14a or 13b, 14b, exchange signal, and disk 11 is with respect to the partial rotation of holding the U-shaped section.
According to the second flexible program, element 11 also can be configured to partition or the plate erect, and U-shaped section 2 is implemented to ring, and can be centered around the axle of horizontal arrangement rotation in paper plane under Fig. 7, wherein body 2 has for reducing quality and the cavity that reduces inertia torque as matrix according to the present invention again.
Claims (12)
1. the slip ring for transmission of electric signals in non-rotary part and between with respect to the part of its rotation, wherein said slip ring consists of annular matrix and at least one slide rail of being arranged on the face of described matrix, it is characterized in that, described matrix has depression or cavity.
2. slip ring according to claim 1, is characterized in that, described cavity comprises at least 30%, preferably at least 50% and particularly preferably at least 75% bulk volume of described matrix.
3. slip ring according to claim 1, is characterized in that, described slip ring body is made by expanded material.
4. slip ring according to claim 1 and 2, is characterized in that, described matrix is made by the material that is constructed to alveolate texture.
5. according to the described slip ring of one of aforementioned claim, it is characterized in that, described matrix consists of each fragment connected to one another.
6. slip ring according to claim 5, is characterized in that, the described fragment of described matrix is engaged by least one slide rail or by least one independent closed ring.
7. according to the described slip ring of one of aforementioned claim, it is characterized in that, described matrix consists of bearing portions.
8. according to the described slip ring of one of aforementioned claim, it is characterized in that, described at least one slide rail by power, coordinate or form fit be fastened on described matrix place.
9. according to the described slip ring of one of aforementioned claim, it is characterized in that, described at least one slide rail is made by hollow profile.
10. according to the described slip ring of one of aforementioned claim, it is characterized in that, described at least one slide rail has in cross section that side is recessed, groove or inclined-plane.
11. according to the described slip ring of one of aforementioned claim, it is characterized in that, described at least one conductor rail has at least one capacitive character transmission unit.
12. according to the described slip ring of one of aforementioned claim, it is characterized in that, described at least one conductor rail is configured to the transmission of inductive signal.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102011015876 | 2011-04-04 | ||
| DE102011015876.6 | 2011-04-04 | ||
| PCT/EP2012/056050 WO2012136646A1 (en) | 2011-04-04 | 2012-04-03 | Slip ring for transmitting electrical signals |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103460524A true CN103460524A (en) | 2013-12-18 |
Family
ID=45952520
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012800135169A Pending CN103460524A (en) | 2011-04-04 | 2012-04-03 | Slip ring for transmitting electrical signals |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN103460524A (en) |
| DE (1) | DE112012001564A5 (en) |
| WO (1) | WO2012136646A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108258556A (en) * | 2018-04-18 | 2018-07-06 | 嘉兴恩碧技电气有限公司 | A kind of spliced CT slip rings |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3217487B1 (en) * | 2016-03-08 | 2019-05-08 | Schleifring GmbH | Modular slip ring system |
| DE102016203762A1 (en) * | 2016-03-08 | 2017-09-14 | Krones Ag | Slip Ring Transmitter for rotary machines |
| EP4343986A1 (en) * | 2022-09-26 | 2024-03-27 | Dr. Johannes Heidenhain GmbH | Slip ring module |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE875234C (en) * | 1942-04-26 | 1953-04-30 | Siemens-Schuckertwerke | Carbon slip ring |
| US3976903A (en) * | 1972-06-24 | 1976-08-24 | The Lucas Electrical Company Limited | Slip ring assembly for A.C. machines |
| GB1505806A (en) * | 1975-04-05 | 1978-03-30 | Meidensha Electric Mfg Co Ltd | Commutation arrangement for a dc machine |
| GB1516140A (en) * | 1974-12-20 | 1978-06-28 | Sev Marchal | Rotors of electric machines |
| CN101278449A (en) * | 2005-10-05 | 2008-10-01 | W.C.贺利氏股份有限公司 | Slip ring for continuous current transfer |
| CN201146317Y (en) * | 2007-11-18 | 2008-11-05 | 成都市宇中梅科技有限责任公司 | Double-track conductive structure of rotary body |
-
2012
- 2012-04-03 WO PCT/EP2012/056050 patent/WO2012136646A1/en active Application Filing
- 2012-04-03 CN CN2012800135169A patent/CN103460524A/en active Pending
- 2012-04-03 DE DE112012001564.9T patent/DE112012001564A5/en not_active Withdrawn
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE875234C (en) * | 1942-04-26 | 1953-04-30 | Siemens-Schuckertwerke | Carbon slip ring |
| US3976903A (en) * | 1972-06-24 | 1976-08-24 | The Lucas Electrical Company Limited | Slip ring assembly for A.C. machines |
| GB1516140A (en) * | 1974-12-20 | 1978-06-28 | Sev Marchal | Rotors of electric machines |
| GB1505806A (en) * | 1975-04-05 | 1978-03-30 | Meidensha Electric Mfg Co Ltd | Commutation arrangement for a dc machine |
| CN101278449A (en) * | 2005-10-05 | 2008-10-01 | W.C.贺利氏股份有限公司 | Slip ring for continuous current transfer |
| CN201146317Y (en) * | 2007-11-18 | 2008-11-05 | 成都市宇中梅科技有限责任公司 | Double-track conductive structure of rotary body |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108258556A (en) * | 2018-04-18 | 2018-07-06 | 嘉兴恩碧技电气有限公司 | A kind of spliced CT slip rings |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2012136646A1 (en) | 2012-10-11 |
| DE112012001564A5 (en) | 2014-01-16 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20131218 |