US20060003604A1 - Slip ring unit with a printed circuit board - Google Patents

Slip ring unit with a printed circuit board Download PDF

Info

Publication number
US20060003604A1
US20060003604A1 US11/172,447 US17244705A US2006003604A1 US 20060003604 A1 US20060003604 A1 US 20060003604A1 US 17244705 A US17244705 A US 17244705A US 2006003604 A1 US2006003604 A1 US 2006003604A1
Authority
US
United States
Prior art keywords
printed circuit
circuit board
slip ring
rotor
ring unit
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.)
Abandoned
Application number
US11/172,447
Inventor
Ludwig Angerpointner
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
LTN Servotechnik GmbH
Original Assignee
LTN Servotechnik GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority to DE2001112895 priority Critical patent/DE10112895B4/en
Priority to DE10112895.9 priority
Priority to US10/043,885 priority patent/US6768233B2/en
Priority to US10/788,544 priority patent/US7002269B2/en
Application filed by LTN Servotechnik GmbH filed Critical LTN Servotechnik GmbH
Priority to US11/172,447 priority patent/US20060003604A1/en
Publication of US20060003604A1 publication Critical patent/US20060003604A1/en
Application status is Abandoned legal-status Critical

Links

Images

Classifications

    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R39/00Rotary current collectors, distributors or interrupters
    • H01R39/02Details for dynamo electric machines
    • H01R39/08Slip-rings
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R39/00Rotary current collectors, distributors or interrupters
    • H01R39/02Details for dynamo electric machines
    • H01R39/34Connections of conductor to slip-ring
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R43/00Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
    • H01R43/10Manufacture of slip-rings
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R12/00Structural associations of a plurality of mutually-insulated electrical connecting elements, specially adapted for printed circuits, e.g. printed circuit boards [PCBs], flat or ribbon cables, or like generally planar structures, e.g. terminal strips, terminal blocks; Coupling devices specially adapted for printed circuits, flat or ribbon cables, or like generally planar structures; Terminals specially adapted for contact with, or insertion into, printed circuits, flat or ribbon cables, or like generally planar structures
    • H01R12/70Coupling devices
    • H01R12/7076Coupling devices for connection between PCB and component, e.g. display
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R39/00Rotary current collectors, distributors or interrupters
    • H01R39/64Devices for uninterrupted current collection

Abstract

A device for transferring electric currents that includes a slip ring unit that has a rotor with connecting wires and a stator and a printed circuit board fastened to the rotor, wherein the printed circuit board includes connectors in electrical contact with the connecting wires, wherein a torque required for rotary movement between the rotor and the stator is introduced via the printed circuit board.

Description

  • Applicant claims, under 35 U.S.C. § 119, the benefit of priority of the filing date of Mar. 15, 2001 of a German patent application, copy attached, Serial Number 101 12 895.9, filed on the aforementioned date, the entire contents of which is incorporated herein by reference.
  • BACKGROUND OF THE INVENTION
  • 1. Field of the Invention
  • The present invention relates to a device for transmitting electrical currents, including a slip ring unit and a printed circuit board, as well as to its employment in connection with remote-controlled objects.
  • 2. Discussion of Related Art
  • Slip rings are employed in many technical fields for transmitting electrical signals or electrical power from a stationary electrical unit to a rotating electrical unit.
  • For example, slip rings are employed for the operation of remote-controlled cameras. In this application, electrical signals must be transmitted from the pivotable camera to an electronic evaluating device, and further than that also the electrical power and signals for operating of drive mechanisms, for example for zoom regulation or an electrical drive mechanism for pivoting. In the same way, electrical slip rings are used in connection with other electrical devices, for example rotatable searchlights, laser installations or robotic components.
  • A slip ring structure is shown in U.S. Pat. No. 3,042,998, the entire contents of which is incorporated herein by reference. In U.S. Pat. No. 3,042,998 the wires of the slip ring rotor are conducted in grooves extending in the axial direction and whose spacing in the circumferential direction has an even graduation. Because of this guidance, the wires project out of the slip ring along the rotor circumference in an orderly manner and with even spacing. No reference is made in this document to the use of a printed circuit board.
  • U.S. Pat. No. 5,213,374 discloses a slip ring arrangement in which a printed circuit board has been placed inside the housing of the actual slip ring unit. This printed circuit board is essentially used for signal amplification inside the slip ring unit. The internal printed circuit board of this patent disclosure cannot transmit a torque, because an appropriate housing has been provided there for this function. Moreover, no ordered guidance in the sense of a functionally-related local assignment of the connecting wires to the printed circuit board is provided in U.S. Pat. No. 5,213,374, the entire contents of which is incorporated herein by reference.
  • A wireless slip ring is disclosed in U.S. Pat. No. 4,870,311, the entire contents of which is incorporated herein by reference. In U.S. Pat. No. 4,870,311 strip conductors on printed circuit boards are used in place of the wires in the slip ring unit. The printed circuit boards, all of which are located inside the slip ring unit in accordance with this patent, are connected as flexible cables, which assure the connection with external devices. A flange is provided, which is fastened on the rotating body and is used for an appropriate introduction of a torque.
  • The above-described known devices have the disadvantage that the torque required for the relative movement between the rotor and the stator is supplied via separate mechanical devices which must be provided in addition to the already present printed circuit boards. In particular, in connection with slip ring units which are produced in large numbers, it is necessary to achieve a material-saving construction, which moreover requires the fewest number of components.
  • Further details of the present invention ensue from the following description of an exemplary embodiment by the attached drawings.
  • OBJECT AND SUMMARY OF THE INVENTION
  • An object of the present invention is therefore based on making possible a slip ring unit with a printed circuit board which is distinguished by a simple and cost-effective construction.
  • This object is attained by a device for transferring electric currents that includes a slip ring unit that has a rotor with connecting wires and a stator and a printed circuit board fastened to the rotor, wherein the printed circuit board includes connectors in electrical contact with the connecting wires, wherein a torque required for rotary movement between the rotor and the stator is introduced via the printed circuit board.
  • The above-mentioned object is also attained by a device for transferring electric currents that includes a slip ring unit that has a stator with connecting wires and a rotor and a printed circuit board fastened to the stator and having connectors that are in electrical contact with the connecting wires of the stator and wherein the printed circuit board is used as a torque support.
  • Other aspects of the device in accordance with the present invention are intended to be used for operating remote-controlled objects.
  • A slip ring unit is understood to be a device including a rotor and a stator and has connecting wires, which are conducted inside the slip ring essentially in the axial direction and are respectively in electrical contact with sliding contacts at the stator and rotor. The connecting wires can be embodied either as a solid cable, or as stranded conductors including several twisted individual wires. The connecting wires are customarily surrounded by an insulating layer, which is often removed in the area of the ends of the connecting wires. The above mentioned sliding contacts (for example rings and matching spring-loaded wire elements) should be mentioned as further components of the slip ring unit, which are in sliding contact when the slip ring is in operation and transmit the electrical current. In particular, those slip ring units are addressed in what follows, in which the rotor and stator have an essentially cylindrical, or hollow-cylindrical, form.
  • In what follows, electrical current is understood to mean electrical signals, as well as electrical current for transmitting power, or energy.
  • The advantage achieved by the present invention resides in that the number of components for a slip ring unit with a printed circuit board is reduced by the novel device. The entire construction is simplified in this way, and a material-saving design of this device is made possible, so that a cost-effective technical solution is also achieved in the end. On the other hand, the outlay for assembly, or for putting together the device in accordance with the present invention, becomes comparatively small. Further than that, an extremely small structural depth of the slip ring unit with the associated mechanical connector is achieved.
  • The present invention is based on the concept that the printed circuit board not only transmits electrical currents, but also the torque required to be produced for the relative movement between the rotor and the stator. In this case, it is possible either to introduce the torque into the rotor by the printed circuit board, or the printed circuit board is used as a torque support at the stator in order to produce a corresponding reaction force.
  • Moreover, the connecting wires which are conducted out of the slip ring unit are advantageously put in order in such a way that their function is correlated with the respective connecting wire position, so that a printed circuit board with an appropriate connecting pattern can be connected simply and assuredly with the slip ring unit. Because of this, it is possible to perform the connecting process between the connecting wires and the printed circuit board completely or partially automatically.
  • However, the present invention also includes arrangements in which the printed circuit board is fastened on the stator, so that the rotary movement then need not necessarily be introduced into the rotor by a further printed circuit board. In this case, it is decisive for the present invention that the printed circuit board at the stator transfers the reaction force from this rotary movement quasi in the form of a torque support to a stationary device. The idea of the present invention is therefore independent of whether the printed circuit board is fastened on the rotor or the stator.
  • A possible exemplary embodiment of the present invention will be explained in greater detail by the drawings.
  • BRIEF DESCRIPTION OF THE DRAWINGS
  • FIG. 1 is an exploded representation of an embodiment of a slip ring unit with a printed circuit board according to the present invention to be used with a stationary board as a constituent of a pivoting device for a remote-controlled camera in accordance with the present invention;
  • FIG. 2 is a view from above of an embodiment of the slip ring unit with a printed circuit board of FIG. 1;
  • FIG. 3 is an exploded representation of the slip ring unit with a printed circuit board and a stationary board of FIG. 1; and
  • FIG. 4 is an exploded representation of a second embodiment of a slip ring unit with a printed circuit board and a stationary board in accordance with the present invention.
  • DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
  • An exploded representation is shown in FIG. 1, which makes clear the application of the device in accordance with the present invention for the operation of a remote-controlled camera 4. The representation of the cable connection was omitted in this drawing figure for reasons of clarity. Also, not shown in this drawing figure is the remote operation, or the remote control of the tilt drive 5 and the pivot drive 6, as well as the camera 4.
  • Essentially, two electronic function groups are housed on a stationary board 3, which are required for the correct operation of a remote-controlled camera 4 (the function groups are not shown in detail in the drawing figures). The first function group includes electronic components intended for controlling the tilt drive 5 and the zoom regulation of the camera 4. The other function group receives the electronic signals containing the optical information from the camera 4, and processes them into a conventional video signal format.
  • The electrical currents for operating the remote-controlled camera 4 are conducted through a socket 3.1 on the stationary board 3. The slip ring unit 2 has a double-row plug 2.4, which is inserted into the socket 3.1. The plug connection between the plug 2.4 and the socket 3.1 is designed to be so solid that it is also used as a torque support during the operation of the slip ring unit 2. Further than that, no mechanical components for fastening or securing the slip ring unit 2 on the stationary board 3 are required because of the mechanical strength of the plug connection. A simple disassembly of the slip ring unit 2 from the stationary board 3 is also possible because of the use of the plug connection. The inside of the pivot bearing 7.2 is designed for this purpose in such a way that the stator 2.3 is fixed in place in the pivot bearing 7.2 by simply being plugged into it.
  • Starting at the plug 2.4, conducting wires run to the sliding contacts on the inside of the stator 2.3 of the slip ring unit 2. A flow of electrical current to the rotor 2.2 is made possible via these sliding contacts inside the slip ring unit 2. The sliding contacts on the rotor side are in electrical contact with connecting wires 2.1. Inside the slip ring unit 2, the connecting wires 2.1 are conducted to the outside in a manner axis-parallel to the rotor 2.2. Here, the rotor 2.2 is embodied by grooves 2.5 (in FIG. 3) in the axial direction in such a way that the connecting wires are arranged, according to their function, or according to the current to be transmitted, in a prearranged pattern. This means that with a finished mounted slip ring unit 2 each connecting wire 2.1 is assigned a defined position in accordance with its function at the circumference of the rotor 2.2. Regarding the design of the rotor 2.2, reference is made at this point also to the disclosure of U.S. Pat. No. 3,042,998, in particular to FIG. 1 of U.S. Pat. No. 3,042,998.
  • The connecting wires 2.1 are soldered by a stud-type contact to the connecting points 1.1 (see FIG. 2) of the printed circuit board 1. The connecting points 1.1 of the printed circuit board 1 constitute the opposite element with respect to the above mentioned arrangement of the connecting wires 2.1. The connecting points 1.1 therefore have the same pattern, i.e. the same geometric arrangement, as the ends of the connecting wires 2.1. In the first step, the assembly of the printed circuit board 1 with the slip ring unit 2 is performed only by plugging the printed circuit board 1 together with the connecting wires 2.1 in such a way that the connecting wires 2.1 are passed through the holes in the connecting points 1.1. Thus, no sorting of the connecting wires 2.1 for an appropriate assignment to the respective connecting point 1.1 need to be performed at this stage of assembly. This results in a considerable time savings during assembly, and at the same time errors because of wrong assignment are eliminated for all practical purposes.
  • Following the plugging of the printed circuit board 1 to the ends of the connecting wires 2.1, soldering of the connecting wires 2.1 with the connecting points 1.1 is performed in accordance with customary techniques for producing stud-type contacts.
  • Alternatively to this it is also possible to solder the ends of the connecting wires 2.1 to the connecting points 1.1 at the surface of the printed circuit board 1 in accordance with a Surface Mounted Device (SMD) process.
  • Following soldering of the connecting wires 2.1 to the connecting points 1.1 of the printed circuit board 1, an epoxy resin material is applied in the area of the soldered connection, which cures in a short time and provides increased strength to the entire connection between the rotor 2.2 and the printed circuit board 1. If the soldering itself provides sufficient force transfer and permanent stability in regard to the respective case of application, it is possible to omit the application of epoxy resin in order to simplify an assembly process and to reduce costs.
  • Besides the already mentioned connecting points 1.1 to the rotor, the printed circuit board 1 includes a carrier substrate 1.2 and strip conductors 1.3 (see FIGS. 2 and 3). The material from which the carrier substrate 1.2 is made is a fiberglass-reinforced epoxy resin of the type FR4, and is therefore comparatively rigid. The strip conductors 1.3 are made of copper, which are applied to the carrier substrate 1.2 at a layer thickness of approximately 35 μm. The strip conductor ends 1.5 located opposite the connecting points 1.1 are soldered to a so-called FFC plug (FFC means flexible flat cable). The appropriate flat cable then constitutes a connection between the printed circuit board 1 and the camera 4. The other strip conductor ends 1.6 are electrically connected with the tilt drive 5.
  • Via the arrangement described above it is thus possible to transmit electrical current from the stationary plate 3 to the rotating printed circuit board 1, which in this example is in contact with the rotatable electronic camera 4. Here image signals, as well as electrical power for the tilt drive 5 of the camera 4, are transmitted via the various strip conductors 1.3.
  • The pivot movement of the pivot platform 7, and therefore also of the camera 4, is produced by a pivot drive 6. The tilt drive 5 is fastened on the pivot platform 7.
  • A pulley 4.1 on the power take-off side is rotatably seated on the housing of the tilt drive 5 and is connected, fixed against relative rotation, with the camera 4 via a holder 4.2. A drive pulley 5.1 is correspondingly provided on the shaft of the tilt drive 5. For the sake of clarity, the belt for the above mentioned belt drive is not represented in FIG. 1. Moreover, two engagement pins 7.1 are located on the pivot platform 7. These engagement pins 7.1 introduce the torque required for the relative movement between the rotor 2.2 and the stator 2.3 into the slip ring unit 2. This torque is generated by the inevitable frictional action inside the slip ring unit 2, in particular between the rotor 2.2 and stator 2.3. The engagement pins 7.1 are intended to introduce the torque in connection with a change of the pivot direction with as little play as necessary into the printed circuit board 1. For this reason, these engagement pins 7.1 are made of an elastomeric material, so that the printed circuit board 1 is installed with the two engagement pins 7.1 being elastically deformed, and both engagement pins 7.1 are in contact with the printed circuit board under pre-stress.
  • Alternatively to this it is of course also possible to employ a different embodiment for a resilient connection for assuring a coupling free of play, for example the use of one or several leaf springs.
  • The above described torque introduction permits a relative movement between the printed circuit board 1 and the engagement pins 7.1 in the radial direction. In this way it is possible to compensate production-related eccentricities between the pivot platform 7 and the slip ring unit 2.
  • A view from above on the printed circuit plate 1 and the slip ring unit 2 is represented in FIG. 2. A representation of the stationary board 3 is omitted in FIG. 2. In this drawing figure it is possible to see how the ends of the connecting wires 2.1 are arranged on the circumference of an imaginary circle. The connecting points 1.1 are positioned on the printed circuit board 1 in a corresponding manner. Because the ends of the connecting wires 2.1 are not lined up along the entire circumference, but only in an area of approximately 270, it is impossible to plug the printed circuit board with the strip conductor 1.3 on its top in a wrong way into the connecting wires 2.1.
  • In case the printed circuit board 1 is connected with the slip ring unit 2 by an SMD contacting process, pins or guides are provided, which assure an exact placement of the printed circuit board 1 on the ends of the connecting wires 2.1 without extensive adjustment steps.
  • Alternatively to the connection of the printed circuit board 1 with the slip ring unit 2 by a soldered connection with an optional epoxy resin coating, a frictional or interlocking connection between the rotor 2.2 and the printed circuit board 1 can also be achieved by the rotor 2.2 itself. In this case, the plastic body of the rotor 2.2 should be designed, in particular for an interlocked connection, in such a way that its end (same as the connecting wires 2.1) projects out of the slip ring unit 2 and forms, together with a suitably shaped perforation 1.4 of the printed circuit board 1, an interlocking connection with the plastic body 2.2. For this variation the perforation 1.4 should, differing from the drawing figures, not have a circular shape, so that via an appropriate matching cross section of the plastic body of the rotor 2.2, a connection, fixed against relative rotation, between the rotor 2.2 and the stator 2.3 is made. This connection is preferably made in such a way that no wrong insertion of the printed circuit board 1 in the rotor 2.2 is possible, if the surface of the printed circuit board 1 is observed. Suitable connecting elements for this purpose can be feather key or slit connections, which are produced with as little play as possible. It might be possible to omit the above mentioned coating process with epoxy resin if a suitable interlocked or frictional torque transfer is assured.
  • The introduced torque is determined from the product of the sum of the active forces and the lever arm H. The forces, which are tangentially directed with respect to the rotary movement, are introduced by the engagement pins 7.1. Accordingly, the lever arm H is equal to the distance between the force introduction point, i.e. the contact point of the engagement pins 7.1 with the printed circuit board 1, and the fulcrum, corresponding to the shaft of the rotor 2.2 in FIG. 2.
  • Starting at the connecting points 1.1, the strip conductors 1.3 are initially guided in the radial direction, so that they do not fall below the minimum distance between each other.
  • It is obvious that it is not absolutely necessary to arrange only strip conductors 1.3 on the printed circuit board 1. Instead, the printed circuit board 1 can also be equipped with electronic components or conductors, so that the surface of the printed circuit board 1 can be well utilized in this way, which contributes to a further reduction in size of the entire system in which the slip ring unit 2 is integrated.
  • A printed circuit board 1, an associated slip ring unit 2 and a stationary board 3 are shown in the provided relative position with respect to each other with the aid of an exploded view in FIG. 3. An opening has been drawn in the representation of the slip ring arrangement 2 for making the guidance of the connecting wires 2.1 clear. In accordance with this, the connecting wires 2.1 are located in grooves 2.5, which extend in the surface of the plastic body of the rotor 2.2 axis-parallel with the slip ring arrangement 2, or with the rotor 2.2. As already mentioned above, reference is made in this connection to the disclosure of U.S. Pat. No. 3,042,998.
  • In another embodiment of the present invention, as shown in FIG. 4 and wherein like elements are represented by like numerals, the connecting wires 2.1 are fixed in the stator 2.3. Such a device can be adapted for use with a remote controlled object, such as the remote controlled camera 4 of FIG. 1 in a manner similar to that described previously with respect to the slip ring unit 2 of FIGS. 2 and 3. These connecting wires are conducted out of the stator 203 in accordance with a geometrically determined pattern similar to that shown in FIGS. 2 and 3 so that the printed circuit board 1 can only be attached in a desired position. These connecting wires are soldered by a stud-type contact to the connecting points 1.1 of the printed circuit board 1. The connecting points 1.1 are arranged in a pattern that is in accordance with the geometrically determined pattern of the connecting wires. In this way, the printed circuit board is stationary as well.
  • As shown in FIG. 4, the rotor 2.2 of the slip ring unit has a plug 2.4 at one end. The plug 2.4 is inserted into a socket 3.1, which is fixed on the rotating board 3. When the plug 2.4 and the socket 3.1 are connected with each other they are fixed against rotation relative to one another.
  • With the arrangement shown in FIG. 4, the board 3 transmits its rotational movement to the rotor 2.2. Within the slip ring unit 2, the electrical current is transferred from the rotor 2.2 to the stator 2.3, which is connected to the stationary printed circuit board 1. Of course, the printed circuit board 1 needs a torque support, which is not shown in FIG. 4. The torque support can be embodied as stationary pins arranged at both sides of the printed circuit board .The foregoing description is provided to illustrate the invention, and is not to be construed as a limitation. Numerous additions, substitutions and other changes can be made to the invention without departing from its scope as set forth in the appended claims.

Claims (2)

1. A device for transferring electric current, comprising:
a slip ring unit comprising a rotor with connecting wires and a stator; and
a printed circuit board fastened to said rotor, wherein said printed circuit board comprises conductors in electrical contact with said connecting wires, wherein a torque required for rotary movement between said rotor and said stator is introduced via said printed circuit board.
2-17. (canceled)
US11/172,447 2001-03-15 2005-06-30 Slip ring unit with a printed circuit board Abandoned US20060003604A1 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
DE2001112895 DE10112895B4 (en) 2001-03-15 2001-03-15 Slip ring unit with a printed circuit board
DE10112895.9 2001-03-15
US10/043,885 US6768233B2 (en) 2001-03-15 2002-01-09 Slip ring unit with a printed circuit board
US10/788,544 US7002269B2 (en) 2001-03-15 2004-02-27 Slip ring unit with a printed circuit board
US11/172,447 US20060003604A1 (en) 2001-03-15 2005-06-30 Slip ring unit with a printed circuit board

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US11/172,447 US20060003604A1 (en) 2001-03-15 2005-06-30 Slip ring unit with a printed circuit board

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
US10/788,544 Continuation US7002269B2 (en) 2001-03-15 2004-02-27 Slip ring unit with a printed circuit board

Publications (1)

Publication Number Publication Date
US20060003604A1 true US20060003604A1 (en) 2006-01-05

Family

ID=7677828

Family Applications (3)

Application Number Title Priority Date Filing Date
US10/043,885 Active US6768233B2 (en) 2001-03-15 2002-01-09 Slip ring unit with a printed circuit board
US10/788,544 Active US7002269B2 (en) 2001-03-15 2004-02-27 Slip ring unit with a printed circuit board
US11/172,447 Abandoned US20060003604A1 (en) 2001-03-15 2005-06-30 Slip ring unit with a printed circuit board

Family Applications Before (2)

Application Number Title Priority Date Filing Date
US10/043,885 Active US6768233B2 (en) 2001-03-15 2002-01-09 Slip ring unit with a printed circuit board
US10/788,544 Active US7002269B2 (en) 2001-03-15 2004-02-27 Slip ring unit with a printed circuit board

Country Status (2)

Country Link
US (3) US6768233B2 (en)
DE (1) DE10112895B4 (en)

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100128122A1 (en) * 2008-11-26 2010-05-27 Robert Bosch Gmbh Camera having a slip ring and pan-tilt mechanism
US20130069625A1 (en) * 2011-09-19 2013-03-21 Utah State University Research Foundation Wireless Power Transfer Test System
CN103997137A (en) * 2009-01-16 2014-08-20 巨石风力股份有限公司 Segmented stator for an axial field device
CN105552677A (en) * 2016-02-25 2016-05-04 惠州市金力电机有限公司 Laser head power supply apparatus
US20170094185A1 (en) * 2014-04-04 2017-03-30 SZ DJI Technology Co., Ltd. Gimbal driving device and gimbal assembly using the same
US9844473B2 (en) 2002-10-28 2017-12-19 Smith & Nephew Plc Apparatus for aspirating, irrigating and cleansing wounds
US9877872B2 (en) 2011-07-14 2018-01-30 Smith & Nephew Plc Wound dressing and method of treatment
US9907703B2 (en) 2012-05-23 2018-03-06 Smith & Nephew Plc Apparatuses and methods for negative pressure wound therapy
US10016556B2 (en) 2013-04-29 2018-07-10 Smiths Medical Asd, Inc. Rotatable electrical connectors
US10046096B2 (en) 2012-03-12 2018-08-14 Smith & Nephew Plc Reduced pressure apparatus and methods
US10076449B2 (en) 2012-08-01 2018-09-18 Smith & Nephew Plc Wound dressing and method of treatment
US10177620B2 (en) 2014-05-05 2019-01-08 Boulder Wind Power, Inc. Methods and apparatus for segmenting a machine
US10188555B2 (en) 2008-03-13 2019-01-29 Smith & Nephew, Inc. Shear resistant wound dressing for use in vacuum wound therapy
US10201644B2 (en) 2005-09-07 2019-02-12 Smith & Nephew, Inc. Self contained wound dressing with micropump

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10112895B4 (en) * 2001-03-15 2011-09-29 Ltn Servotechnik Gmbh Slip ring unit with a printed circuit board
MXPA05008357A (en) * 2003-02-07 2006-02-28 Core Innovation Llc Conductor optimized axial field rotary energy device.
DE10326286A1 (en) * 2003-06-11 2005-01-13 Siemens Ag mobile device
KR100718092B1 (en) 2005-08-19 2007-05-16 삼성전자주식회사 Security camera
KR100718087B1 (en) * 2005-08-19 2007-05-16 삼성전자주식회사 Security camera
JP5252939B2 (en) * 2008-02-07 2013-07-31 株式会社ジェイテクト Motor control device and vehicle steering apparatus provided with the same
CN102005682B (en) * 2009-09-03 2014-04-16 深圳富泰宏精密工业有限公司 Connector and portable electronic device using same
US8482611B2 (en) * 2010-03-23 2013-07-09 Pelco, Inc. Surveillance camera
GB2497809B (en) 2011-12-22 2014-03-12 Rolls Royce Plc Method of servicing a gas turbine engine
US9478896B2 (en) 2011-12-22 2016-10-25 Rolls-Royce Plc Electrical connectors
GB2497807B (en) 2011-12-22 2014-09-10 Rolls Royce Plc Electrical harness
GB2498006B (en) 2011-12-22 2014-07-09 Rolls Royce Plc Gas turbine engine systems
US9306353B2 (en) * 2013-05-29 2016-04-05 Moog Inc. Integrated rotary joint assembly with internal temperature-affecting element
US9894767B1 (en) 2016-03-20 2018-02-13 Jason Krugman Products, LLC Concentric circle printed circuit board electrical connection

Citations (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3042998A (en) * 1957-05-06 1962-07-10 Sperry Gyroscope Co Ltd Slip ring assembly
US3913114A (en) * 1973-02-01 1975-10-14 Canon Kk Electrical driving device for camera
US4396850A (en) * 1982-01-12 1983-08-02 The Singer Company Brush board assembly for dynamoelectric machine with flat end commutator
US4594524A (en) * 1984-02-22 1986-06-10 Kangyo Denkikiki Kabushiki Kaisha Coreless-brushless motor
US4617505A (en) * 1984-04-14 1986-10-14 Vdo Adolf Schindling Ag Voltage supply
US4689023A (en) * 1985-08-27 1987-08-25 The Superior Electric Company Programmable electrical connector
US4812695A (en) * 1986-08-15 1989-03-14 Marathon Electric Manufacturing Corporation Annular stator core construction
US4818911A (en) * 1985-03-09 1989-04-04 Asmo Co., Ltd. Stator of electric motor
US4870311A (en) * 1988-10-11 1989-09-26 Honeywell Inc. Wireless slip ring assembly
US5124608A (en) * 1991-01-25 1992-06-23 Quality Aero Technology, Inc. Low-noise slip ring assembly
US5231374A (en) * 1991-09-23 1993-07-27 Michigan Scientific Corporation Apparatus and method for acquiring electrical signals from rotating members
US5357160A (en) * 1992-01-24 1994-10-18 Nippon Densan Corporation IC controlled DC motor
US5793133A (en) * 1994-09-16 1998-08-11 Shicoh Engineering Co., Ltd. Flat vibration generating apparatus
US6177740B1 (en) * 1999-01-29 2001-01-23 Delphi Technologies, Inc. Integrated motor and motor drive unit
US6181046B1 (en) * 1998-08-10 2001-01-30 Mitsubishi Denki Kabushiki Kaisha Dynamo-electric machine with commutator assembly
US6304014B1 (en) * 1997-10-02 2001-10-16 Synaptics (Uk) Limited Motor control system
US6380648B1 (en) * 2001-06-11 2002-04-30 Chun-Pu Hsu Wheel drum structure of inner stator portion with inbuilt switches
US6517357B1 (en) * 2000-11-22 2003-02-11 Athan Corporation Slip ring and brush assembly for use in a video recorder
US6522037B2 (en) * 2000-12-19 2003-02-18 Samsung Electro-Mechanics Co., Ltd. Flat-typed vibration motor
US20030103770A1 (en) * 2001-11-30 2003-06-05 Pelco Slip ring assembly and method
US6768233B2 (en) * 2001-03-15 2004-07-27 Ltn Servotechnik Gmbh Slip ring unit with a printed circuit board
US6830337B2 (en) * 2001-01-11 2004-12-14 Dr Johannes Heidenhain Gmbh Device for rotating a body about two axes
US6876121B2 (en) * 2001-07-18 2005-04-05 Tokyo Parts Industrial Co., Ltd. Flat oscillation motor equipped with a brush apparatus

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4927364A (en) * 1987-06-30 1990-05-22 Toyoda Gosei Co., Ltd. Steering wheel
US4863387A (en) * 1987-12-22 1989-09-05 Snaper Alvin A Printer circuit board separable connector
DE4316142A1 (en) * 1993-05-14 1994-11-17 Dietmar Koch Linear drive
DE9401715U1 (en) * 1994-02-02 1994-03-24 W M Filmtechnik Gmbh An apparatus for signal transmission in a camera dolly
US5542850A (en) * 1994-06-30 1996-08-06 The Whitaker Corporation Pivotal electrical connector
US6132219A (en) * 1998-12-15 2000-10-17 Raytheon Company Planetary connector

Patent Citations (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3042998A (en) * 1957-05-06 1962-07-10 Sperry Gyroscope Co Ltd Slip ring assembly
US3913114A (en) * 1973-02-01 1975-10-14 Canon Kk Electrical driving device for camera
US4396850A (en) * 1982-01-12 1983-08-02 The Singer Company Brush board assembly for dynamoelectric machine with flat end commutator
US4594524A (en) * 1984-02-22 1986-06-10 Kangyo Denkikiki Kabushiki Kaisha Coreless-brushless motor
US4617505A (en) * 1984-04-14 1986-10-14 Vdo Adolf Schindling Ag Voltage supply
US4818911A (en) * 1985-03-09 1989-04-04 Asmo Co., Ltd. Stator of electric motor
US4689023A (en) * 1985-08-27 1987-08-25 The Superior Electric Company Programmable electrical connector
US4812695A (en) * 1986-08-15 1989-03-14 Marathon Electric Manufacturing Corporation Annular stator core construction
US4870311A (en) * 1988-10-11 1989-09-26 Honeywell Inc. Wireless slip ring assembly
US5124608A (en) * 1991-01-25 1992-06-23 Quality Aero Technology, Inc. Low-noise slip ring assembly
US5231374A (en) * 1991-09-23 1993-07-27 Michigan Scientific Corporation Apparatus and method for acquiring electrical signals from rotating members
US5357160A (en) * 1992-01-24 1994-10-18 Nippon Densan Corporation IC controlled DC motor
US5793133A (en) * 1994-09-16 1998-08-11 Shicoh Engineering Co., Ltd. Flat vibration generating apparatus
US6304014B1 (en) * 1997-10-02 2001-10-16 Synaptics (Uk) Limited Motor control system
US6181046B1 (en) * 1998-08-10 2001-01-30 Mitsubishi Denki Kabushiki Kaisha Dynamo-electric machine with commutator assembly
US6177740B1 (en) * 1999-01-29 2001-01-23 Delphi Technologies, Inc. Integrated motor and motor drive unit
US6517357B1 (en) * 2000-11-22 2003-02-11 Athan Corporation Slip ring and brush assembly for use in a video recorder
US6522037B2 (en) * 2000-12-19 2003-02-18 Samsung Electro-Mechanics Co., Ltd. Flat-typed vibration motor
US6830337B2 (en) * 2001-01-11 2004-12-14 Dr Johannes Heidenhain Gmbh Device for rotating a body about two axes
US6768233B2 (en) * 2001-03-15 2004-07-27 Ltn Servotechnik Gmbh Slip ring unit with a printed circuit board
US6380648B1 (en) * 2001-06-11 2002-04-30 Chun-Pu Hsu Wheel drum structure of inner stator portion with inbuilt switches
US6876121B2 (en) * 2001-07-18 2005-04-05 Tokyo Parts Industrial Co., Ltd. Flat oscillation motor equipped with a brush apparatus
US20030103770A1 (en) * 2001-11-30 2003-06-05 Pelco Slip ring assembly and method
US6793415B2 (en) * 2001-11-30 2004-09-21 Pelco Slip ring assembly and method

Cited By (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9844473B2 (en) 2002-10-28 2017-12-19 Smith & Nephew Plc Apparatus for aspirating, irrigating and cleansing wounds
US10201644B2 (en) 2005-09-07 2019-02-12 Smith & Nephew, Inc. Self contained wound dressing with micropump
US10188555B2 (en) 2008-03-13 2019-01-29 Smith & Nephew, Inc. Shear resistant wound dressing for use in vacuum wound therapy
US8325229B2 (en) * 2008-11-26 2012-12-04 Robert Bosch Gmbh Camera having a slip ring and pan-tilt mechanism
US20100128122A1 (en) * 2008-11-26 2010-05-27 Robert Bosch Gmbh Camera having a slip ring and pan-tilt mechanism
CN103997137A (en) * 2009-01-16 2014-08-20 巨石风力股份有限公司 Segmented stator for an axial field device
US9762099B2 (en) 2009-01-16 2017-09-12 Boulder Wind Power, Inc. Segmented stator for an axial field device
US10231874B2 (en) 2010-11-08 2019-03-19 Smith & Nephew Plc Wound dressing and method of treatment
US10039673B2 (en) 2011-07-14 2018-08-07 Smith & Nephew Plc Wound dressing and method of treatment
US10130519B2 (en) 2011-07-14 2018-11-20 Smith & Nephew Plc Wound dressing and method of treatment
US9877872B2 (en) 2011-07-14 2018-01-30 Smith & Nephew Plc Wound dressing and method of treatment
US20130069625A1 (en) * 2011-09-19 2013-03-21 Utah State University Research Foundation Wireless Power Transfer Test System
US9140763B2 (en) * 2011-09-19 2015-09-22 Utah State University Wireless power transfer test system
US10046096B2 (en) 2012-03-12 2018-08-14 Smith & Nephew Plc Reduced pressure apparatus and methods
US9907703B2 (en) 2012-05-23 2018-03-06 Smith & Nephew Plc Apparatuses and methods for negative pressure wound therapy
US10076449B2 (en) 2012-08-01 2018-09-18 Smith & Nephew Plc Wound dressing and method of treatment
US10016556B2 (en) 2013-04-29 2018-07-10 Smiths Medical Asd, Inc. Rotatable electrical connectors
US20170094185A1 (en) * 2014-04-04 2017-03-30 SZ DJI Technology Co., Ltd. Gimbal driving device and gimbal assembly using the same
US9749544B2 (en) * 2014-04-04 2017-08-29 Sz Dji Osmo Technology Co., Ltd. Gimbal driving device and gimbal assembly using the same
US10177620B2 (en) 2014-05-05 2019-01-08 Boulder Wind Power, Inc. Methods and apparatus for segmenting a machine
CN105552677A (en) * 2016-02-25 2016-05-04 惠州市金力电机有限公司 Laser head power supply apparatus

Also Published As

Publication number Publication date
DE10112895B4 (en) 2011-09-29
US7002269B2 (en) 2006-02-21
US20020130568A1 (en) 2002-09-19
US6768233B2 (en) 2004-07-27
DE10112895A1 (en) 2002-09-19
US20040164642A1 (en) 2004-08-26

Similar Documents

Publication Publication Date Title
JP3683541B2 (en) Coaxial plug part
US5841635A (en) Flexible printed circuit for split keyboard and method of assembly
US4054939A (en) Multi-layer backpanel including metal plate ground and voltage planes
CN1082742C (en) Step motor
EP0163142A1 (en) Brushless motor
US7170208B2 (en) Connector with flux concentrator for electric motor
CA2365404C (en) Coaxial connection for a printed circuit board
JP2581544B2 (en) Programmable electrical connector
EP2051340A1 (en) Electrical connector
JP2007080566A (en) Connector
US6193564B1 (en) Electric connecting configuration
US5010432A (en) Rotary head drum apparatus comprising resilient electrical connectors
US6648494B2 (en) Vehicle lamp and rotary driving apparatus
US5287028A (en) Miniature motor
US8143752B2 (en) Electric motor having electrical connecting elements for connection to winding leads
JP5059005B2 (en) Magnetic bearing with improved feedthrough in vacuum
US6300697B1 (en) Circuit configuration for connecting up the stator windings of a brushless electronically commutated motor
US20040253850A1 (en) Electrical connector housing
JP5377865B2 (en) Radio control device, electric actuator and home automation device having such a device
JP2003523708A (en) Electric motor for particular lifting the window glass of an automobile
JP2000517160A (en) Electric drive unit
JP2005354858A (en) Actuator
US6733327B2 (en) Connector for button battery contained in electronic device
FI87598C (en) Kontaktanordning Foer oeverfoering elektriska of signals between Laos Science NYCKEL in a cylinderlaos
US20120091839A1 (en) Electric motor

Legal Events

Date Code Title Description
STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION