CN107104341A - A kind of electric rotary connector - Google Patents
A kind of electric rotary connector Download PDFInfo
- Publication number
- CN107104341A CN107104341A CN201710203716.5A CN201710203716A CN107104341A CN 107104341 A CN107104341 A CN 107104341A CN 201710203716 A CN201710203716 A CN 201710203716A CN 107104341 A CN107104341 A CN 107104341A
- Authority
- CN
- China
- Prior art keywords
- silk
- contact
- resistance detection
- signal transmission
- electric signal
- 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
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- 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
- H01R39/58—Means structurally associated with the current collector for indicating condition thereof, e.g. for indicating brush wear
Landscapes
- Details Of Connecting Devices For Male And Female Coupling (AREA)
Abstract
The present invention relates to a kind of electric rotary connector, including the rotary shaft that can be relatively rotated and support frame, one or more is provided with rotary shaft along the axial arranged contact ring of rotary shaft, it is provided with support frame with contacting the corresponding electric signal transmission contact silk of ring number, electric rotary connector also includes contacting the first connected connector of silk and second connector connected with contacting ring with electric signal transmission, at least one is provided with support frame resistance detection contact silk that silk should be set and that ring sliding contact cooperation is contacted with correspondence is contacted with correspondence electric signal transmission, electric rotary connector also includes the resistance detection unit that relative support frame is fixed, resistance detection unit include contact with resistance detection silk number it is corresponding and contact with resistance detection silk and correspondingly electric signal transmission contact silk be connected voltage interface.The present invention, which solves operating personnel in the prior art, can not know contact silk with contacting the problem of abrasion condition between ring causes that signal transmission quality may be influenceed.
Description
Technical field
The present invention relates to the electric rotary connector transmitted for signal.
Background technology
Existing electric rotary connector includes relatively turnable rotary shaft and support frame, axially disposed in rotary shaft to have
It is provided with multiple contact rings, support frame by contacting silk installing plate with contacting the corresponding contact silk of ring number, electricity rotatable connection
Device also includes contact the first connected connector of silk with each and contacting the second connector that ring is connected with each.In use, first connects
Device, the second connector is connect respectively with relatively turnable two parts to be connected, it is real by contacting sliding contact of the silk with contacting ring
The transmission of existing electric signal between first connector, the second connector.Existing this electric connector has problems in that：Contact
Silk is metal with contact ring, and its rotational life will often reach millions of turns, and prolonged rotate can produce contact silk and connect
The change and the abrasion of metal of relative pressure between tactile ring, will ultimately result in the increase of electric rotary connector low level contact resistance,
So as to influence the transmission quality of signal.
The content of the invention
It is an object of the invention to provide a kind of electric rotary connector, it can not be known with solving operating personnel in the prior art
Silk is contacted with contacting the problem of abrasion condition between ring causes that signal transmission quality may be influenceed.
In order to solve the above problems, the technical scheme is that：
One or more is provided with electric rotary connector, including the rotary shaft and support frame that can be relatively rotated, rotary shaft
Along the axial arranged contact ring of rotary shaft, it is provided with support frame with contacting the corresponding electric signal transmission contact silk of ring number, electricity
Rotary connector also includes contacting the first connected connector of silk and second connector connected with contacting ring with electric signal transmission,
At least one is provided with support frame to contact that silk should be set and with correspondingly contacting ring sliding contact match somebody with somebody with correspondingly electric signal transmission
The resistance detection contact silk of conjunction, electric rotary connector also includes the resistance detection unit that relative support frame is fixed, resistance detection list
Member include contact with resistance detection silk number it is corresponding and contact silk with resistance detection and corresponding electric signal transmission to contact silk connected
Voltage interface.
Voltage interface is the voltage detecting interface that is provided by voltage detecting circuit, and resistance detection unit is included to resistance detection
Contact silk and correspondence electric signal transmission contact silk provides the power supply of constant current.
Power supply is electrically connected with the corresponding contact of the first connector.
Support frame includes upper mounting plate and lower installation board, and electric signal transmission contact silk is arranged on upper mounting plate, resistance inspection
Survey contact silk to be arranged on lower installation board, be provided with support frame on the left of upper and lower installing plate on first circuit board, support frame
The second circuit board that wire is connected with first circuit board is provided with the right side of upper and lower installing plate, power supply is arranged at
On first circuit board, voltage detecting circuit is arranged on second circuit board.
Resistance detection unit also includes microprocessor, and microprocessor is arranged on first circuit board.
Resistance detection unit also includes microprocessor, and the first connector is provided with to be connected with the signal output part of microprocessor
Resistance detection output contact.
The number of resistance detection contact silk has multiple, and power supply contacts silk with each resistance detection and corresponding electric signal is passed
Defeated contact silk electrical connection.
Power supply contacts silk and the contact silk electrical connection of corresponding electric signal transmission, wherein half with even number resistance detection
Resistance detection contact silk be passed through the sense of current contacted with other half resistance detection silk to be passed through the sense of current opposite.
Beneficial effects of the present invention are：In the present invention, by the way that resistance detection contact silk and corresponding electric signal transmission are connect
Tactile silk is connected in the voltage interface of resistance detection unit, is carried out detection resistance detection contact silk and is contacted silk with correspondence electric signal transmission
Between resistance, with judge correspondence contact silk with contacting the abrasion condition between ring, so as to avoid contact with silk with contacting ring transition
The problem of wearing and tearing and cause influence transmission quality；Resistance detection unit, support frame and electric signal transmission contact silk are relatively fixed, more
Resistance detection unit is easily set to contact the attachment structure between silk and electric signal transmission contact silk with resistance detection.
Brief description of the drawings
Fig. 1 is the structural representation of one embodiment of the present of invention；
Fig. 2 is support frame and the cooperation schematic diagram of each printed board in Fig. 1；
Fig. 3 is Fig. 2 right view；
Fig. 4 is Fig. 2 left view；
Fig. 5 is Fig. 2 stereogram；
Fig. 6 is Fig. 2 C-C to sectional view；
Fig. 7 is the cooperation schematic diagram of electric signal transmission contact silk and upper mounting plate in Fig. 2；
Fig. 8 is the cooperation schematic diagram of resistance detection contact silk and lower installation board in Fig. 2；
Fig. 9 is the resistance measurement schematic diagram in the present invention；
Figure 10 is the circuit theory diagrams of resistance detection unit in the present invention.
Embodiment
A kind of implementation of electric rotary connector is for example shown in Fig. 1 ~ 10：The rotation of assembling is relatively rotated including shell and with shell
Rotating shaft 8, shell includes sleeve 3 and is fixed on the sleeve end cap 6 of the end of sleeve 3, shell to be fixedly installed the first connector, revolves
It is fixedly installed in rotating shaft in the second connector 1, rotary shaft and is provided with multiple contact rings 9 axial arranged along rotary shaft, is contacted
Ring 9 is electrically connected with the corresponding contact on the second connector 1.Be fixedly installed support frame 12 on shell, support frame be provided with
Contacting electric signal transmission contact silk 11 in the corresponding electric signal transmission contact silk 11 of ring number, the present embodiment has 20, support frame
Upper mounting plate 2 and lower installation board 13 including being arranged at rotary shaft both sides, electric signal transmission contact silk 11 are arranged at upper mounting plate
On, it is disposed with four resistance detections along rotary shaft axially spaced-apart on lower installation board 13 and contacts silk 21, while four resistance detections connects
Tactile silk contacts the sliding contact of ring 9 cooperation, the electric signal of four resistance detections contact silks respectively with correspondence position with corresponding respectively
Transmission contact silk is corresponding, and resistance detection in the present embodiment contact silk contacts that silk is corresponding to refer to electricity with electric signal transmission
Resistance detection contacts silk and the corresponding electric signal transmission contact silk of silk is contacted with the resistance detection contacts ring sliding contact with same
Coordinate.First connector includes the first socket 4 and the second socket 5, corresponding contact and the part electric signal transmission of the first socket 4
Silk electrical connection is contacted, the corresponding contact of the second socket 5 contacts silk electrical connection with remaining electric signal transmission.First inserts when using
Seat the 4, second socket 5 two plug grafting corresponding with tumbler, the second connector 1 is then inserted with the corresponding plug on fixture
Connect, contacting sliding contact of the silk with contacting ring 9 by electric signal transmission realizes that the signal between fixture, tumbler is transmitted.Electricity rotation
Turning connector also includes the resistance detection unit that relative support frame is fixed, and resistance detection unit includes being fixed on support by screw
First circuit board 10 and second circuit board 14 on frame, first circuit board 10 are in the left side of upper and lower installing plate, second circuit board
Microprocessor 15 and power supply 18, second circuit board 14 are provided with 14 right sides in upper and lower installing plate, first circuit board
On be provided with voltage detecting circuit 19, power supply 18 includes constant-current source circuit 16, and power supply is connected by wire with first
The tail end electrical connection of the corresponding contact of device, realizes the access of power supply signal.Between first circuit board 10 and second circuit board 14
Connected by wire, to realize that signal is interconnected, power supply contacts silk and corresponding electric signal by wire with each resistance detection
Transmission contact silk is connected, and realizes that it is 80mA, voltage detecting electricity to provide loop to be measured constant current in constant current, the present embodiment
Road has voltage detecting interface, and resistance detection contact silk and corresponding electric signal transmission contact silk are connected with voltage detecting interface,
To realize the collection of low level contact resistance signal.In the present embodiment, in order to obtain more accurately detecting data, power supply
Four resistance detection contact silks are powered, same voltage detecting interface also gathers the voltage signal of correspondence four, in order to be able to make
Data are more representative, and four resistance detections are contacted in silk dispersed placement, two neighboring tested electric signals transmission contact silk
Between can be spaced 4 ~ 7 electric signal transmissions contact silks, define four tested electric signals contact silks be respectively vertically order arrange
The first tested contact silk 11-1, the second tested contact silk 11-2, the 3rd tested tested contact silk 11- of contact silk 11-3 and the 4th
4, the contact ring between resistance detection contact silk, corresponding electric signal transmission contact silk and two contact silks is properly termed as tested ring
Road, silk is contacted with the resistance detection of this four tested loops by wire respectively for power supply and electric signal transmission contacts silk phase
Even, the voltage detecting interface of voltage detecting circuit is also tested by wire with this four respectively contacts the resistance detection in silk and contacts
Silk and electric signal transmission contact silk electrical connection.In addition, in the present invention in order to reduce " potential heat " and influence, the first tested contact silk
11-1, the electric current of the 3rd tested contact silk are passed through direction unanimously, the second tested contact silk 11-2, the electric current of the 4th tested contact silk
It is passed through direction to be passed through in the opposite direction with the first, the 3rd tested electric current for contacting silk, as shown in figure 9, the first, the 3rd tested contact silk
Electric current be passed through direction be by lower end to upper end, the electric current of the second, the 4th tested contact silk be passed through direction be by upper end to lower end,
Four obtained measured values are added the low level contact resistance averaged for representing tested loop.U1 represents the first quilt in figure
The detection voltage of contact silk is surveyed, U2 represents the detection voltage of the second tested contact silk；Fig. 1 middle terms 7 represent to consolidate with the second connector
Surely the adpting flange being connected.
The test philosophy of the present invention is as shown in Figure 10：Power supply signal is input to the first circuit by wire from the first connector
On the power supply of plate, power supply signal is supplied to the voltage detecting circuit of second circuit board by power supply, while power supply
Constant-current source circuit provide 80mA constant current to be tested loop, the signal amplification circuit part of voltage detecting circuit will be from
The weak voltage signals of tested loop collection are amplified to the input voltage of microprocessor, are conveyed to microprocessor, microprocessor pair
The signal received is handled, and is converted into RS-232 signals and is transported on RS-232 communication circuit portions 17, the first connector
Contact is exported provided with the resistance detection that the signal output part with microprocessor is connected, RS-232 communication circuit portions will be received
Signal by wire from resistance detection export contact export, finally transmit to corresponding host computer, so as to realize to low level
The monitoring of contact resistance signal.
In other embodiments of the invention：When accuracy of detection is less demanding, the electric current of silk is respectively contacted by resistance detection
Being passed through direction can also be consistent, and the number of now resistance detection contact silk is not limited to even number, such as can also odd number
It is individual；The resistance signal that RS-232 communication circuit portions are obtained can not also be realized by the first connector to be transmitted to outside, such as
Say and directly drawn the signal by wire；When electric rotary connector overall dimensions are larger, power supply and voltage detecting electricity
Road can also be placed on same circuit board；Can not also by the first connector to power supply provide power supply signal, such as
Say to set supplying cell to power to each circuit in electric rotary connector；Voltage interface may not be voltage detecting and connect
Mouthful, such as voltage interface is the voltage-drop loading interface that voltage-drop loading is carried out to the tested loop of correspondence, now resistance detection unit
Current detection circuit can be included, the resistance value of tested loop can equally be calculated by Ohm's law；First connector
A socket can only be included, now each electric signal transmission contact silk is connected with the corresponding contact of the socket.
Claims (8)
1. it is provided with one or two in a kind of electric rotary connector, including the rotary shaft and support frame that can be relatively rotated, rotary shaft
Along the axial arranged contact ring of rotary shaft more than individual, it is provided with and is contacted with contacting the corresponding electric signal transmission of ring number on support frame
Silk, electric rotary connector also includes contacting the first connected connector of silk with electric signal transmission and with contacting the second company that ring is connected
Connect device, it is characterised in that：Be provided with support frame at least one with correspondence electric signal transmission contact it is that silk should be set and with correspondingly
The resistance detection contact silk that ring sliding contact coordinates is contacted, electric rotary connector also includes the resistance detection that relative support frame is fixed
Unit, resistance detection unit include contact with resistance detection silk number it is corresponding and contacted with resistance detection silk and correspondingly electric signal biography
The connected voltage interface of defeated contact silk.
2. electric rotary connector according to claim 1, it is characterised in that：Voltage interface is is provided by voltage detecting circuit
Voltage detecting interface, resistance detection unit include to resistance detection contact silk and correspondence electric signal transmission contact silk provide it is constant
The power supply of electric current.
3. electric rotary connector according to claim 2, it is characterised in that：Power supply connects with the corresponding of the first connector
Contact element is electrically connected.
4. electric rotary connector according to claim 2, it is characterised in that：Support frame includes upper mounting plate and lower installation
Plate, electric signal transmission contact silk be arranged on upper mounting plate, resistance detection contact silk be arranged on lower installation board, on support frame in
Be provided with the left of upper and lower installing plate on first circuit board, support frame on the right side of upper and lower installing plate be provided with wire with
The connected second circuit board of first circuit board, power supply is arranged on first circuit board, and voltage detecting circuit is arranged at second
On circuit board.
5. electric rotary connector according to claim 4, it is characterised in that：Resistance detection unit also includes microprocessor,
Microprocessor is arranged on first circuit board.
6. electric rotary connector according to claim 1, it is characterised in that：Resistance detection unit also includes microprocessor,
First connector is provided with the resistance detection output contact being connected with the signal output part of microprocessor.
7. the electric rotary connector according to claim 2 ~ 5 any one, it is characterised in that：Of resistance detection contact silk
Number has multiple, and power supply contacts silk and the contact silk electrical connection of corresponding electric signal transmission with each resistance detection.
8. electric rotary connector according to claim 7, it is characterised in that：Power supply is contacted with even number resistance detection
Silk and the contact silk electrical connection of corresponding electric signal transmission, wherein half resistance detection contact silk are passed through the sense of current and other one
Half resistance detection contact silk to be passed through the sense of current opposite.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710203716.5A CN107104341B (en) | 2017-03-30 | 2017-03-30 | A kind of electric rotary connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710203716.5A CN107104341B (en) | 2017-03-30 | 2017-03-30 | A kind of electric rotary connector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107104341A true CN107104341A (en) | 2017-08-29 |
| CN107104341B CN107104341B (en) | 2019-07-23 |
Family
ID=59674837
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710203716.5A Active CN107104341B (en) | 2017-03-30 | 2017-03-30 | A kind of electric rotary connector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107104341B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090153089A1 (en) * | 2007-12-13 | 2009-06-18 | Alstom Technology Ltd | Apparatus for monitoring of brushes, in particular slipring or commutator brushes, on electrical machines |
| CN201781178U (en) * | 2010-07-15 | 2011-03-30 | 中航光电科技股份有限公司 | Electric rotary connector |
| CN202282544U (en) * | 2011-10-12 | 2012-06-20 | 三一集团有限公司 | Carbon brush wear detection apparatus and carbon brush wear alarm system |
| CN104426039A (en) * | 2013-09-02 | 2015-03-18 | Ltn伺服技术有限责任公司 | Slip-ring unit and method for monitoring the condition of a slip-ring unit |
| CN204361454U (en) * | 2014-11-26 | 2015-05-27 | 国家电网公司 | A kind of combined type carbon brush device of belt wear instruction |
| CN104821474A (en) * | 2015-04-30 | 2015-08-05 | 中航光电科技股份有限公司 | Electric rotary connector |
| CN107069366A (en) * | 2017-03-22 | 2017-08-18 | 中航光电科技股份有限公司 | A kind of electric rotary connector |
-
2017
- 2017-03-30 CN CN201710203716.5A patent/CN107104341B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090153089A1 (en) * | 2007-12-13 | 2009-06-18 | Alstom Technology Ltd | Apparatus for monitoring of brushes, in particular slipring or commutator brushes, on electrical machines |
| CN201781178U (en) * | 2010-07-15 | 2011-03-30 | 中航光电科技股份有限公司 | Electric rotary connector |
| CN202282544U (en) * | 2011-10-12 | 2012-06-20 | 三一集团有限公司 | Carbon brush wear detection apparatus and carbon brush wear alarm system |
| CN104426039A (en) * | 2013-09-02 | 2015-03-18 | Ltn伺服技术有限责任公司 | Slip-ring unit and method for monitoring the condition of a slip-ring unit |
| CN204361454U (en) * | 2014-11-26 | 2015-05-27 | 国家电网公司 | A kind of combined type carbon brush device of belt wear instruction |
| CN104821474A (en) * | 2015-04-30 | 2015-08-05 | 中航光电科技股份有限公司 | Electric rotary connector |
| CN107069366A (en) * | 2017-03-22 | 2017-08-18 | 中航光电科技股份有限公司 | A kind of electric rotary connector |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107104341B (en) | 2019-07-23 |
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