CN104993344A - Electric rotation connector - Google Patents
Electric rotation connector Download PDFInfo
- Publication number
- CN104993344A CN104993344A CN201510361230.5A CN201510361230A CN104993344A CN 104993344 A CN104993344 A CN 104993344A CN 201510361230 A CN201510361230 A CN 201510361230A CN 104993344 A CN104993344 A CN 104993344A
- Authority
- CN
- China
- Prior art keywords
- bearing
- insulation sleeve
- ring
- outer ring
- insulating case
- 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
Links
Landscapes
- Rolling Contact Bearings (AREA)
Abstract
The present invention provides an electric rotation connector, comprising an inner insulation sleeve and an outer insulation sleeve which are arranged coaxially and have an axis extending along a front-rear direction, wherein at least one bearing is arranged in an annular space between the inner insulation sleeve and the outer insulation sleeve, the bearing has a bearing outer ring which is fixedly assembled with the inner circumferential surface of the outer insulation sleeve and is circumferentially closed, a bearing inner ring which is fixedly assembled with the outer circumferential surface of the inner insulation sleeve and is circumferentially closed, and a conductive ball conductively connected between the bearing inner ring and the bearing outer ring. According to the electric rotation connector of the present invention, as both the bearing inner ring and the bearing outer ring are circumferentially closed and are fixed on the inner insulation sleeve and the outer insulation sleeve which are arranged coaxially, the annular space between the bearing inner ring and the bearing outer ring has the same radial dimension at all positions in the circumferential direction, the ball can be stably in conductive contact with the bearing inner ring and the bearing outer ring when circumferentially and circularly rotating in the annular space, and a good rotation conductive performance is achieved.
Description
Technical field
the present invention relates to conduction connection area, particularly relate to a kind of electric rotary connector.
Background technology
Mainly sliding contacting mode is adopted at present at electric slip ring field brush and conducting ring, many employings compound brush block or noble metal monofilament or fiber brush contact with conducting ring sliding conduction, and when electric slip ring is applied to high power transmission, above-mentioned three kinds all need to adopt multi-channel parallel common transport power, due to the impact by machining accuracy, assembly precision, the power of actual every road transmission is not identical.When designing redundancy and being less, because actual transmission power difference can cause Part way brush to burn out, cause product failure; When designing redundancy and being larger, need to increase axial dimension, product cost rises thereupon.
Authorization Notice No. is CN201584630U, authorized announcement date is that the Chinese utility model patent of 2010.09.15 discloses a kind of rotary conducting ring, comprise armature spindle, insulating case is arranged with outside armature spindle, rotary conductive inner ring is arranged with outside insulating case, conduction outer ring is provided with outside rotary conductive inner ring, a plurality of ball is provided with in the annular space surrounded between rotary conductive inner ring and conduction outer ring, rotary conductive inner ring is electrically connected with rotor coil by wire, outer ring is electrically connected with extraction wire to conduction, the conduction between Internal and external cycle is realized by the ball in rotary conductive inner ring and the annular space that surrounds of conduction outer ring, avoid and use brush and conducting ring to be slidably matched the flimsy problem of conduction.But, the first embodiment of this rotary conducting ring in use, because conduction outer ring is the C type circulus with circumferential openings, ball has the signal of telecommunication break time of short time when turning to aperture position place, transmission of signal is unstable, the opening part of C type circulus is bolted, bolt be provided with for by the two ends of opening to close direction preloading spring, ball like this between Internal and external cycle is when being rolled to aperture position place, outer ring, can with opening while produce and impact and collide, damage ball, can radial floating be there is in outer ring under the elastic acting force of spring, ball is caused to contact instability with conduction outer ring, cause that contact resistance is very unstable and excursion is larger, or conduction can be affected connect.
Summary of the invention
The object of the present invention is to provide between a kind of ball and conduction outer ring and can not occur to impact and collision, can not there is the electric rotary connector of radial floating in conduction outer ring, connects unstable problem in order to solve existing rotary conducting ring conduction.
In order to solve the problems of the technologies described above, electric rotary connector of the present invention adopts following technical scheme: a kind of electric rotary connector, comprise connector shell, interior insulating case and external insulation sleeve that axis extends along the longitudinal direction is coaxially provided with in described connector shell, in, at least one bearing is provided with in the annular space surrounded between external insulation sleeve, described bearing have fix with the inner peripheral surface of external insulation sleeve assembling circumference close bearing outer ring, and the bearing inner race that the circumference that the outer peripheral face of interior insulating case fixes assembling is closed and conduction are connected to the conduction ball between bearing inner race and bearing outer ring.
Bearing between inside and outside insulating case has multiple and spaced apart at axial direction, is often provided with between adjacent two bearings for bearing insulation being separated and bearing being carried out to the insulation lattice gear structure of axial location.
Insulation lattice gear structure comprises fixing in assembling with interior insulating case and insulate baffle ring and fix the external insulation baffle ring of assembling with external insulation sleeve, inside and outside insulation baffle ring is the block locating surface for coordinating with bearing face block towards the side of axial direction, and external insulation baffle ring side close to each other diametrically surrounds labyrinth shape Insulating gap jointly.
The shape of described labyrinth shape Insulating gap on axial cross section is S type.
Inside and outside insulating case is respectively equipped with radial through lead-in wire perforation in the axial positions corresponding to each bearing, in described lead-in wire perforation, is equipped with the conductive lead wire be connected with bearing inner race, bearing outer ring respectively.
Electric rotary connector of the present invention comprises in coaxial setting, external insulation sleeve, bearing is provided with between internal and external insulating, bearing outer ring and external insulation sleeve are fixed and are assembled, bearing inner race and interior insulating case are fixed and are assembled, conduction ball is provided with between bearing enclose, in bearing due to electric rotary connector of the present invention, outer ring all circumference is closed and is fixed in coaxial setting, on external insulation sleeve, the annular space surrounded between such bearing enclose is identical at each position radial dimension of circumference, ball is when this annular space inner circumferential cycle rotation and in bearing, the conductive contact of outer ring is stablized constant, there will not be in prior art the problem connecting and occur being interrupted of conducting electricity because conduction outer ring has opening, bearing inner race is fixed on interior insulating case, bearing outer ring is fixed on external insulation sleeve, ensure that bearing enclose relative position is fixed, there will not be the radial floating because of inner ring and/or outer ring and occur that contact resistance is unstable, the problem that impact conduction connects.
Further, bearing between inside and outside insulating case has multiple and spaced apart at axial direction, insulation lattice gear structure is provided with between every two bearings, each bearing can be separated and axial location is carried out to each bearing by insulation lattice gear structure, between adjacent two bearings, sandwiched insulation lattice gear structure can ensure that adjacent bearing can not conductive contact, and each bearing can transmit the different signals of telecommunication.
Further, the Insulating gap for S type on axial cross section is surrounded between the radial side that inside and outside insulation baffle ring is close to each other, when this electric rotary connector is applied to high pressure, high power transmission, the feel that S type Insulating gap indirectly increases between adjacent two bearings is remote, indirect increase creepage distance, make, between adjacent two bearings, short circuit is less likely to occur, more secure and reliable to use.
Accompanying drawing explanation
Fig. 1 is the structural representation of the embodiment one of electric rotary connector of the present invention.
Embodiment
Below in conjunction with accompanying drawing, electric rotary connector of the present invention is described in detail:
The embodiment one of electric rotary connector of the present invention: comprise connector shell, as shown in Figure 1, external insulation sleeve 1 and interior insulating case 2 is coaxially provided with in connector shell, in, three bearings are installed in the annular space surrounded between external insulation sleeve, three bearing uniform intervals settings in the axial direction, the axis of each bearing and interior, the dead in line of external insulation sleeve, each bearing all has the bearing outer ring 10 be fixedly connected with the inner peripheral surface of external insulation sleeve 1 and the bearing inner race 20 be fixedly connected with the outer peripheral face of interior insulating case 2, bearing inner race and bearing outer ring are electric conducting material and make, roll between each bearing inner race and bearing outer ring to turn and be furnished with conduction ball 3, bearing inner race and bearing outer ring periphery close to each other are respectively equipped with and conduct electricity the arcuate groove of ball outer peripheral face to adaptation, stable rolling in the raceway that conduction ball can surround at bearing inner race and bearing outer ring, bearing outer ring 10 and bearing inner race 20 are the annular that circumference is closed, insulation lattice gear structure is also folded with between adjacent two bearings, these insulation lattice gear structure is used for adjacent two bearing insulations isolation and positions in the axial direction bearing, in the present embodiment, insulation lattice gear structure comprises external insulation baffle ring 11 and interior insulation baffle ring 21, external insulation baffle ring 11 is fixedly connected with external insulation sleeve 1, interior insulation baffle ring 21 is fixedly connected with interior insulating case 2, in, the side towards axial direction of external insulation baffle ring is the plane perpendicular to axis, this plane is the block locating surface for coordinating with corresponding bearing face block, in, in external insulation baffle ring deviates from, the radial side of external insulation sleeve is provided with concaveconvex structure, in, concaveconvex structure on external insulation baffle ring cooperatively interacts and surrounds labyrinth shape Insulating gap, in the present embodiment, this clearance for insulation is S type crossing the cross sectional shape on external insulation sleeve axis direction, certainly, in other embodiments, can also be zigzag or other complicated bend shapes, which increase the length of the air duct between adjacent two bearings, voltage is used in higher at this electric rotary connector, when electric current conduction that is comparatively large or high power transmission connects, indirectly increase creepage distance, be not easy the phenomenon of the short circuit occurred between adjacent two bearings, ensure that the stability that conduction connects and reliability, in, external insulation sleeve is also provided with to go between in the position corresponding with each bearing axial location and bores a hole, in lead-in wire perforation radial extension difference is through, external insulation sleeve, interior conductive lead wire 22 and outer conductive lead wire 12 is equipped with respectively in lead-in wire perforation.
Electric rotary connector of the present invention in use external insulation sleeve and connector shell is fixed, rotating shaft to be arranged in interior insulating case and to be fixedly connected with interior insulating case, axis of rotation makes inside and outside insulating case relatively rotate, the Internal and external cycle of bearing relatively rotates, annular space inner circumferential revolution concurrent be conigenous of conduction ball between bearing enclose turns, and carries out conducting transmission between bearing enclose by conduction ball.
The embodiment two of electric rotary connector of the present invention: be with the difference of embodiment one, the bearing shaft between inner ring insulating case, to contacting with each other, now only can be done transmission of electricity and use, and not transmit different electrical signals.
The embodiment three of electric rotary connector of the present invention: be with the difference of embodiment one, insulation lattice gear structure is integral type dead ring, the inside and outside periphery of dead ring respectively with interior insulating case and external insulation sleeve matched in clearance, all do not fix with internal and external insulating, do not affect relatively rotating of internal and external insulating, the two ends end face of dead ring coordinates with the corresponding end face block of adjacent two bearings and respectively to adjacent two bearing axial location.
The embodiment four of electric rotary connector of the present invention: be with the difference of embodiment one, in inside and outside insulation baffle ring radial direction, side close to each other is the face of cylinder, and surrounds annular Insulating gap.
Realize rotating conduction by the conduction ball between bearing enclose when electric rotary connector of the present invention uses, the position of bearing enclose is relatively fixing and radial floating can not occur, ensure that the contact stabilization between ball and bearing enclose, improve stability and the reliability of rotary conductive, ball and bearing enclose stable well rolls to coordinate to also improve and conducts electricity useful life of ball.
Claims (5)
1. an electric rotary connector, comprise connector shell, it is characterized in that, interior insulating case and external insulation sleeve that axis extends along the longitudinal direction is coaxially provided with in described connector shell, be provided with at least one bearing in the annular space surrounded between inside and outside insulating case, the bearing inner race that the circumference that the outer peripheral face of the bearing outer ring that the circumference that described bearing has and the inner peripheral surface of external insulation sleeve fixes assembling is closed and interior insulating case fixes assembling is closed and conduction are connected to the conduction ball between bearing inner race and bearing outer ring.
2. electric rotary connector according to claim 1, it is characterized in that, bearing between inside and outside insulating case has multiple and spaced apart at axial direction, is often provided with between adjacent two bearings for bearing insulation being separated and bearing being carried out to the insulation lattice gear structure of axial location.
3. electric rotary connector according to claim 2, it is characterized in that, insulation lattice gear structure comprises fixing in assembling with interior insulating case and insulate baffle ring and fix the external insulation baffle ring of assembling with external insulation sleeve, inside and outside insulation baffle ring is the block locating surface for coordinating with bearing face block towards the side of axial direction, and external insulation baffle ring side close to each other diametrically surrounds labyrinth shape Insulating gap jointly.
4. electric rotary connector according to claim 3, is characterized in that, the shape of described labyrinth shape Insulating gap on axial cross section is S type.
5. the electric rotary connector according to claim 1-4 any one, it is characterized in that, inside and outside insulating case is respectively equipped with radial through lead-in wire perforation in the axial positions corresponding to each bearing, in described lead-in wire perforation, is equipped with the conductive lead wire be connected with bearing inner race, bearing outer ring respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510361230.5A CN104993344A (en) | 2015-06-28 | 2015-06-28 | Electric rotation connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510361230.5A CN104993344A (en) | 2015-06-28 | 2015-06-28 | Electric rotation connector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104993344A true CN104993344A (en) | 2015-10-21 |
Family
ID=54305119
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510361230.5A Pending CN104993344A (en) | 2015-06-28 | 2015-06-28 | Electric rotation connector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104993344A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107662551A (en) * | 2017-09-28 | 2018-02-06 | 李康明 | A kind of orientation mobile phone installed in automobile steering disk center and navigation support |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06264940A (en) * | 1993-03-16 | 1994-09-20 | Sanden Corp | Electromagnetic clutch |
| CN202352994U (en) * | 2011-11-22 | 2012-07-25 | 财团法人精密机械研究发展中心 | High-speed electrical rotary joint |
| CN204144559U (en) * | 2014-08-01 | 2015-02-04 | 黄岳良 | The signal adapting device of contactless automatic car washing machine |
| CN104348061A (en) * | 2013-07-31 | 2015-02-11 | 曾亿豪 | Rotating shaft power supply device |
-
2015
- 2015-06-28 CN CN201510361230.5A patent/CN104993344A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06264940A (en) * | 1993-03-16 | 1994-09-20 | Sanden Corp | Electromagnetic clutch |
| CN202352994U (en) * | 2011-11-22 | 2012-07-25 | 财团法人精密机械研究发展中心 | High-speed electrical rotary joint |
| CN104348061A (en) * | 2013-07-31 | 2015-02-11 | 曾亿豪 | Rotating shaft power supply device |
| CN204144559U (en) * | 2014-08-01 | 2015-02-04 | 黄岳良 | The signal adapting device of contactless automatic car washing machine |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107662551A (en) * | 2017-09-28 | 2018-02-06 | 李康明 | A kind of orientation mobile phone installed in automobile steering disk center and navigation support |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105140753A (en) | Rotary conducting structure | |
| CN102217151B (en) | Slip ring unit | |
| CN107947492B (en) | Structure for eliminating current of motor shaft | |
| US8987955B2 (en) | Electric motor and electric device including the same | |
| CN101682137A (en) | Contactor | |
| US9369029B2 (en) | Rotating rectifier assembly for electric machine | |
| CN208955838U (en) | A kind of shaft current elimination structure of permanent-magnet synchronous driving motor for electric vehicle | |
| US20200235629A1 (en) | Stator for an electric motor | |
| US20120068566A1 (en) | Dc motor | |
| US7811091B2 (en) | Rotary terminal mechanism | |
| CN109923765B (en) | Cover assembly and motor including the same | |
| JP5910674B2 (en) | Electric motor | |
| US20150288120A1 (en) | Slip ring structure | |
| CN104993344A (en) | Electric rotation connector | |
| JP6518118B2 (en) | Brushed rotary electric machine and method of manufacturing the same | |
| CN108292882A (en) | Motor | |
| KR20220142503A (en) | motors and electric appliances | |
| CN108321649B (en) | Multifunctional combined rotary connector and assembling method thereof | |
| CN103475140A (en) | Self-short-circuit insulated bearing | |
| CN104218409B (en) | A kind of radio frequency, electricity load in mixture rotary connector | |
| CN102237767A (en) | Terminal lead insulator assembly for wound field synchronous machine | |
| CN205212603U (en) | Motor bearing organizes insulation system | |
| CN203554153U (en) | Internal grounding insulation bearing | |
| CN208299175U (en) | A kind of liquid electricity Multifunctional slip ring | |
| JP2017200258A5 (en) |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20151021 |