WO2008012875A1 - Rotary terminal mechanism - Google Patents
Rotary terminal mechanism Download PDFInfo
- Publication number
- WO2008012875A1 WO2008012875A1 PCT/JP2006/314723 JP2006314723W WO2008012875A1 WO 2008012875 A1 WO2008012875 A1 WO 2008012875A1 JP 2006314723 W JP2006314723 W JP 2006314723W WO 2008012875 A1 WO2008012875 A1 WO 2008012875A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- electrode
- peripheral surface
- circular
- rotating
- terminal mechanism
- 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.)
- Ceased
Links
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
- H01R39/64—Devices for uninterrupted current collection
- H01R39/643—Devices for uninterrupted current collection through ball or roller bearing
Definitions
- the present invention relates to a rotating terminal (slip ring) mechanism having a structure advantageous for miniaturization, which is used for transmitting electric power and signals between rotating pairs.
- a slip ring is used in order to always keep an electrical connection between a rotating side member and a fixed side member.
- slip rings when the number of poles increases, the corresponding number of slip rings must be stacked in a coaxial state.
- the number of contact points when the number of contact points is small, in order to secure the transmission capacity, it is necessary to widen the slip ring to secure the contact area. In either case, it becomes longer in the axial direction, which is disadvantageous for making the slip ring thinner.
- a slip ring suitable for thinning is disclosed in Patent Document 1.
- the slip ring disclosed herein has a structure in which a planetary plate that rotates and revolves while being in contact with the inner ring on the movable side and the outer ring on the fixed side arranged concentrically.
- both sides of the two rings in the direction of the central axis are also sandwiched by the planetary plate.
- the slip ring with this structure can accommodate multiple poles by arranging a plurality of ring pairs that are concentric and have inner and outer ring forces.
- the contact area can be secured by increasing the number of planetary plates. Therefore, it is advantageous for reducing the thickness of the slip ring.
- Patent Document 1 Japanese Patent Laid-Open No. 5-82223
- an object of the present invention is to propose a rotary terminal mechanism that is advantageous in downsizing, which has a simple structure and requires a small number of parts.
- the rotating terminal mechanism of the present invention includes:
- An outer electrode with a circular inner peripheral surface
- An inner electrode having a circular outer peripheral surface arranged concentrically at regular intervals with respect to the circular inner peripheral surface;
- a plurality of conductive rings inserted between the circular inner peripheral surface and the circular outer peripheral surface and capable of being squeezed in a diametrical direction;
- the outer diameter of the conductive ring is larger than the interval between the circular inner peripheral surface and the circular outer peripheral surface.
- Each conductive ring is inserted between the circular inner peripheral surface and the circular outer peripheral surface in a state of being squeezed into an ellipse, and is pressed against the circular inner peripheral surface and the circular outer peripheral surface by its elastic return force. Slidable along these surfaces in a state,
- One of the outer electrode and the inner electrode is a fixed electrode, and the other is a rotating electrode.
- a conductive ring is inserted between the circular inner peripheral surface of the outer electrode and the circular outer peripheral surface of the inner electrode arranged concentrically in a slightly swung state. is there .
- the conductive ring is kept in contact with the outer electrode and the inner electrode by its elastic restoring force.
- the conductive ring rolls along these surfaces while maintaining the state of being pressed against the circular inner peripheral surface and the circular outer peripheral surface by elastic force ( Rotation and revolution). Therefore, even if the outer electrode and the inner electrode are relatively rotated, an electrical connection between them is always formed.
- the electrical connection between the stationary electrode attached to the stationary member and the rotating electrode attached to the rotating member is slightly crushed between them.
- a rolling element is inserted between the outer ring and the inner ring in the rolling bearing mechanism, it is only necessary to insert a conductive ring between the electrodes. Therefore, a rotating terminal mechanism with a simple structure and a small number of parts is realized. It can appear. Further, by arranging a large number of sets of fixed side electrodes and rotating side electrodes concentrically, it is possible to cope with multi-pole electrodes. Further, the contact area between both electrodes can be increased by increasing the number of conductive rings. Therefore, it is possible to realize a rotary terminal mechanism that is advantageous for downsizing, particularly for reducing the thickness in the central axis direction.
- the present invention has a retainer spacer disposed between the conductive rings in order to keep the interval between the conductive rings constant and reduce friction loss. It is said.
- a cylindrical spacer inserted between these circular inner peripheral surfaces and the circular outer peripheral surfaces and inserted between these surfaces can be used. By arranging the retainer spacer, the conductive rings can be held at equiangular intervals.
- the outer electrode and the inner electrode are ring-shaped electrodes.
- the ring-shaped electrodes By arranging the ring-shaped electrodes concentrically, it is possible to easily realize the multi-pole structure of the rotary terminal mechanism.
- a stationary side case and a rotating side case provided with an inner end surface that faces the inner end surface of the stationary side case with a predetermined interval in a coaxial state
- the rotating side case is supported by the fixed side case in a rotatable state via a bearing, and the fixed side electrode is attached to the inner end surface of the fixed side case, and the rotating side case is
- the rotation-side electrode is attached to the inner end face, and is characterized in that
- one of the fixed side case and the rotation side case is provided with the conductive ring and the retainer spacer on the circular inner peripheral surface of the outer electrode and the circular outer peripheral surface of the inner electrode.
- An insertion opening is formed for insertion therebetween, and the insertion opening is sealed by a lid member.
- the rotating terminal mechanism of the present invention a plurality of pairs of the outer electrode and the inner electrode are concentrically arranged, and the gap between the outer electrode and the inner electrode of each pair is described above. It is characterized in that a conductive ring is inserted. In this way, the rotating terminal The multi-pole mechanism can be realized without increasing the thickness in the central axis direction.
- the pair of the outer electrode and the inner electrode is placed in the direction of the central axis of the outer electrode and the inner electrode. And a plurality of sets of the conductive rings may be inserted between the pair of the outer electrode and the inner electrode.
- the electrical connection between the stationary electrode attached to the stationary member and the rotating electrode attached to the rotating member is slightly crushed between them.
- a rolling element is inserted between the outer ring and the inner ring in the rolling bearing mechanism, it is only necessary to insert a conductive ring between the two electrodes. Therefore, a rotary terminal mechanism with a simple structure and a small number of parts can be realized.
- by arranging a large number of sets of fixed side electrodes and rotating side electrodes concentrically it is possible to cope with multi-pole electrodes. Further, the contact area between both electrodes can be increased by increasing the number of conductive rings. Therefore, it is possible to realize a rotary terminal mechanism that is advantageous for downsizing, particularly for reducing the thickness in the central axis direction.
- FIG. 1 is a longitudinal sectional view showing a two-pole rotary terminal mechanism to which the present invention is applied.
- FIG. 2 is a cross-sectional view showing a portion cut along line II-II in FIG.
- FIG. 1 is a longitudinal sectional view showing a two-pole rotary terminal mechanism to which the present invention is applied
- FIG. 2 is a transverse sectional view showing a portion cut along line II-II.
- the rotary terminal mechanism 1 includes a hollow rotary shaft 2, and an insulating rotary side case 3 is fixed to the outer periphery of the hollow rotary shaft 2 by a screw 18 in a coaxial state.
- the rotation-side case 3 has a cylindrical boss 31 having a hollow portion in which the hollow rotation shaft 2 is fitted, and a direction perpendicular to the central axis 2a of the hollow rotation shaft 2 from the outer peripheral surface of the cylindrical boss 31.
- the rotating side disk 32 extending in the same manner.
- an insulating fixed side case 4 is rotatable in a coaxial state. It is attached in the state.
- the fixed case 4 has a cylindrical boss 41 supported by the outer peripheral surface portion of the hollow rotary shaft 2 via a bearing 5 in a rotatable state, and extends radially from one end of the cylindrical boss 41.
- the fixed disk 42 is integrally formed.
- the fixed side disk 42 faces the rotation side disk 32 at a constant interval in the direction of the central axis 2a, and extends from the outer periphery thereof at a right angle toward the rotation side disk 32.
- a cylinder 43 is formed. The front end surface of the cylinder 43 is in contact with the outer peripheral edge side portion of the inner end surface 34 of the rotation side disc 32 in a slidable state.
- the rotating side case 3 and the stationary side case 4 form an annular space 6 having a substantially oblong rectangular cross section that is substantially closed. Inside this annular space 6, the first inner electrode 7, the first outer electrode 8, the second inner electrode 9, and the second outer electrode 10 are arranged in this order in a concentric manner from the center side. Has been.
- the first inner electrode 7 is a ring-like electrode as a whole, and is fixed to the inner peripheral edge portion of the inner end surface 44 of the fixed-side disc 42 by a plurality of screws 11. Therefore, the first inner electrode 7 is a fixed side electrode.
- the first inner electrode 7 has an L-shaped cross-sectional shape, and only the inner peripheral edge portion has a wide width substantially the same as the annular space 6, and a circular outer peripheral surface 71 is formed in the wide width portion.
- the first outer electrode 8 is a ring-shaped electrode having substantially the same width as the circular outer peripheral surface 71 of the first inner electrode 7, and a plurality of screws 12 are provided on the inner end surface 34 of the rotating side disk 32. It is fixed. Therefore, the first outer electrode 8 is a rotation side electrode.
- a first annular space 13 having a predetermined width and thickness is formed between the circular inner peripheral surface 81 of the first outer electrode 8 and the circular outer peripheral surface 71 of the first inner electrode 7. .
- first annular space 13 a plurality of first conductive rings that can stagnate in the radial direction, and in the illustrated example, eight first conductive rings 14 are inserted.
- the width of these first conductive rings 14 is slightly narrower than the thickness of the first annular space 13 (the dimension in the direction of the central axis 2a).
- the outer diameter of the conductive ring 14 is slightly larger than the width of the first annular space 13, that is, the radial distance between the circular outer peripheral surface 71 and the circular inner peripheral surface 81.
- these first conductive rings 14 are inserted into the first annular space 13 in a state of being slightly convoluted in an elliptical shape, and the elastic return force of the first inner electrode 7 Circular perimeter It is pressed against the surface 71 and the circular inner peripheral surface 81 of the first outer electrode 8. In this state, the conductive ring 14 can roll (rotate and revolve) along these surfaces 71 and 81.
- each first conductive ring 14 in order to hold each first conductive ring 14 in the first annular space 13 at equiangular intervals along the circumferential direction, each first conductive ring 14 Between them, a flat cylindrical first retainer spacer 15 is inserted in contact therewith.
- the retainer spacer 15 has substantially the same width as the first conductive ring 14, and the outer diameter thereof is that of the circular outer peripheral surface 71 of the first inner electrode 7 and the circular inner peripheral surface 81 of the first outer electrode 8. Same force as spacing or slightly smaller. Therefore, each first retainer spacer 15 can roll along the circular outer peripheral surface 71 and the circular inner peripheral surface 81 in the first annular space 13.
- These first retainer spacers 15 are made of an insulating resin.
- the second inner electrode 9 is arranged outside the first outer electrode 8 with a certain interval.
- the second inner electrode 9 has the same cross-sectional shape as the first outer electrode 8, and is fixed to the rotating side disk 32 by a plurality of screws 16. Therefore, the second inner electrode 9 is a rotation side electrode.
- the second outer electrode 10 is arranged with a certain interval.
- the second outer electrode 10 has the same cross-sectional shape as the first inner electrode 7, but is arranged so that the wide width portion is located on the outer peripheral edge side.
- the second outer electrode 10 is fixed to the fixed side disk 42 with screws 17. Therefore, the second outer electrode 10 is a fixed side electrode.
- a second annular ring having the same cross section as the first annular space 13 is provided between the circular outer peripheral surface 91 of the second inner electrode 9 and the circular inner peripheral surface 101 of the second outer electrode 10.
- a space 23 is formed.
- a plurality of, in the illustrated example, 17 second conductive rings 24 are inserted.
- the second conductive ring 24 has the same shape as the first conductive ring 14 and is inserted into the second annular space 23 in a slightly elliptical shape.
- the second retainer spacer 2 5 ⁇ made of flat cylindrical shape is disposed, Ru.
- the second retainer spacer 25 has the same shape as the first retainer spacer 15.
- the first inner electrode 7 and the first outer electrode are concentrically formed.
- a set of side electrode 8, conductive ring 14 and retainer spacer 15, and a set of second inner electrode 9, second outer electrode 10, second conductive ring 24 and second retainer spacer 25 Are arranged.
- the rotation-side disc 32 in the rotation-side case 3 has a long hole 35 that is long in the radial direction at a position A indicated by an imaginary line in FIG.
- the elongated hole 35 connects the first conductive ring 14 and the first retainer spacer 15 and the second conductive ring 24 and the second retainer spacer 25 to the first annular space, respectively. 13 and an opening for insertion into the second annular space 23.
- the elongated hole 35 is blocked by an oval blocking plate 36 having the same contour shape and the same thickness.
- the first outer electrode 8 and the second inner electrode 9 fixed to the rotary disk 32 are fixed by two screws 12 and 16.
- a first fixed-side lead wire (not shown) is drawn from the first inner electrode 7, and the first outer electrode 8 The lead wire (not shown) is pulled out.
- the electrical connection between them is formed by the first inner electrode 7, the second outer electrode 8, and a plurality of first conductive rings 14 inserted between them in an elliptical shape. Is done.
- a second fixed-side lead wire (not shown) is drawn from the second outer electrode 10, and a second rotation-side lead wire (not shown) is drawn from the second inner electrode 9. .
- the electrical connection between them is formed by the second outer electrode 10, the second inner electrode 9, and a plurality of second conductive rings 24 inserted between them in an elliptical shape. .
- the rotating terminal mechanism 1 of the present example is similar to the case where the rolling element is inserted between the outer ring and the inner ring in the rolling bearing mechanism, and between the electrodes 7, 8, and the electrodes 9, 10 It can be constructed by inserting conductive rings 14 and 24, respectively. Therefore, a rotary terminal mechanism with a simple structure and a small number of parts can be realized. Further, as in this example, by arranging a large number of pairs of the fixed side electrode and the rotation side electrode concentrically, it is possible to realize multipolarization without increasing the thickness in the central axis direction. Furthermore, the contact area between both electrodes can be increased by increasing the number of conductive rings. Therefore, it is possible to realize a rotary terminal mechanism that is advantageous for downsizing, in particular, for reducing the thickness in the central axis direction.
- the above example is a rotary terminal mechanism for two poles, but the present invention can be similarly applied to a rotary terminal mechanism for one pole and for multiple poles having three or more poles.
- a pair of inner electrodes and outer electrodes are stacked in the direction of the central axis to construct a multipolar rotary terminal mechanism. You can also. In this case, it is possible to realize a multipolar electrode that does not increase the outer diameter.
- the above example is a unit configured to attach the hollow rotary shaft 2 of the rotary terminal mechanism 1 to the output shaft of the motor or the rotary output shaft of the rotary actuator.
- it can be incorporated directly into a rotating mechanism such as a motor or rotating actuator.
- the hollow rotary shaft 2 can be omitted and can be directly assembled to the rotary shaft of the motor.
Landscapes
- Rolling Contact Bearings (AREA)
- Motor Or Generator Current Collectors (AREA)
- Waveguide Connection Structure (AREA)
- Power Steering Mechanism (AREA)
Description
Claims
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE112006003971T DE112006003971T5 (de) | 2006-07-26 | 2006-07-26 | Rotationsanschlussmechanismus |
| JP2008526629A JPWO2008012875A1 (ja) | 2006-07-26 | 2006-07-26 | 回転端子機構 |
| US12/227,968 US7811091B2 (en) | 2006-07-26 | 2006-07-26 | Rotary terminal mechanism |
| PCT/JP2006/314723 WO2008012875A1 (en) | 2006-07-26 | 2006-07-26 | Rotary terminal mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/JP2006/314723 WO2008012875A1 (en) | 2006-07-26 | 2006-07-26 | Rotary terminal mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2008012875A1 true WO2008012875A1 (en) | 2008-01-31 |
Family
ID=38981190
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP2006/314723 Ceased WO2008012875A1 (en) | 2006-07-26 | 2006-07-26 | Rotary terminal mechanism |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US7811091B2 (ja) |
| JP (1) | JPWO2008012875A1 (ja) |
| DE (1) | DE112006003971T5 (ja) |
| WO (1) | WO2008012875A1 (ja) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101976338A (zh) * | 2010-10-29 | 2011-02-16 | 杭州电子科技大学 | 一种基于梯度方向直方图的判决式视觉显著性检测方法 |
| JP2013152914A (ja) * | 2012-01-25 | 2013-08-08 | Hisawa Giken Co Ltd | ロータリーコネクタ |
| WO2024166859A1 (ja) | 2023-02-10 | 2024-08-15 | イーグル工業株式会社 | ロータリコネクタ |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8142200B2 (en) * | 2007-03-26 | 2012-03-27 | Liposonix, Inc. | Slip ring spacer and method for its use |
| TWM439795U (en) * | 2012-02-03 | 2012-10-21 | Aptos Technology Inc | Portable electronic device |
| JP6160125B2 (ja) * | 2013-03-01 | 2017-07-12 | 株式会社ジェイテクト | 転がり軸受装置 |
| CN103453078B (zh) * | 2013-09-06 | 2015-09-09 | 上海鑫君传动科技有限公司 | 一种新型波发生器的谐波减速机 |
| US9472915B1 (en) | 2015-05-12 | 2016-10-18 | NovaWurks, Inc. | Spring ring circuit assembly |
| US11215233B1 (en) * | 2020-09-28 | 2022-01-04 | Chia-Hao Chang | Rotating spindle capable of conductively contacting via bearings |
| CN117837031A (zh) * | 2021-08-19 | 2024-04-05 | 伊格尔工业股份有限公司 | 旋转连接器 |
| CN118738965B (zh) * | 2024-09-04 | 2024-12-10 | 浙江光远电气有限公司 | 一种导电滑环 |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09102376A (ja) * | 1995-05-30 | 1997-04-15 | He Holdings Inc Dba Hughes Electron | ボール接触子ロータリーコネクタ |
| JPH10223346A (ja) * | 1997-01-31 | 1998-08-21 | Soruton:Kk | 回転電気コネクタ |
| JP2002231404A (ja) * | 2001-01-31 | 2002-08-16 | B L Auto Tec Kk | ロータリジョイント |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4737112U (ja) | 1971-05-18 | 1972-12-25 | ||
| JPH0582223A (ja) | 1991-09-18 | 1993-04-02 | Alps Electric Co Ltd | スリツプリング |
| EP0862806A4 (en) * | 1996-07-30 | 1999-04-14 | Fifth Dimension Inc | BRUSHLESS COLLECTOR RING USING ROLLING ELEMENTS AS ELECTRICAL CONDUCTORS |
| CA2193011C (en) * | 1996-12-16 | 2002-03-26 | Robert Henry Rehder | Anti-friction rotating contact assembly |
| US6299454B1 (en) * | 2000-03-23 | 2001-10-09 | Methode Electronics, Inc. | Steering column interconnector having conductive elastic rolling contacts |
| US6612847B2 (en) * | 2001-10-11 | 2003-09-02 | Florencio Canizales, Jr. | Slip plate assembly and method for conductively supplying electrical current under rotational and translational force applications |
| US6921269B2 (en) * | 2003-07-30 | 2005-07-26 | Honeywell International Inc. | Relative rotation signal transfer assembly |
-
2006
- 2006-07-26 WO PCT/JP2006/314723 patent/WO2008012875A1/ja not_active Ceased
- 2006-07-26 DE DE112006003971T patent/DE112006003971T5/de not_active Withdrawn
- 2006-07-26 US US12/227,968 patent/US7811091B2/en active Active
- 2006-07-26 JP JP2008526629A patent/JPWO2008012875A1/ja active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09102376A (ja) * | 1995-05-30 | 1997-04-15 | He Holdings Inc Dba Hughes Electron | ボール接触子ロータリーコネクタ |
| JPH10223346A (ja) * | 1997-01-31 | 1998-08-21 | Soruton:Kk | 回転電気コネクタ |
| JP2002231404A (ja) * | 2001-01-31 | 2002-08-16 | B L Auto Tec Kk | ロータリジョイント |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101976338A (zh) * | 2010-10-29 | 2011-02-16 | 杭州电子科技大学 | 一种基于梯度方向直方图的判决式视觉显著性检测方法 |
| JP2013152914A (ja) * | 2012-01-25 | 2013-08-08 | Hisawa Giken Co Ltd | ロータリーコネクタ |
| WO2024166859A1 (ja) | 2023-02-10 | 2024-08-15 | イーグル工業株式会社 | ロータリコネクタ |
| KR20250126827A (ko) | 2023-02-10 | 2025-08-25 | 이구루코교 가부시기가이샤 | 로터리 커넥터 |
Also Published As
| Publication number | Publication date |
|---|---|
| US7811091B2 (en) | 2010-10-12 |
| DE112006003971T5 (de) | 2009-06-04 |
| JPWO2008012875A1 (ja) | 2009-12-17 |
| US20100003836A1 (en) | 2010-01-07 |
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