EP1808941B1 - Balais pour bague collectrice et dispositif de bague collectrice le contenant - Google Patents

Balais pour bague collectrice et dispositif de bague collectrice le contenant Download PDF

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Publication number
EP1808941B1
EP1808941B1 EP06021459A EP06021459A EP1808941B1 EP 1808941 B1 EP1808941 B1 EP 1808941B1 EP 06021459 A EP06021459 A EP 06021459A EP 06021459 A EP06021459 A EP 06021459A EP 1808941 B1 EP1808941 B1 EP 1808941B1
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EP
European Patent Office
Prior art keywords
region
brush element
slip ring
brush
dimension
Prior art date
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Active
Application number
EP06021459A
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German (de)
English (en)
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EP1808941A1 (fr
Inventor
Ludwig Angerpointner
Klaus Drost
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
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LTN Servotechnik GmbH
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Publication date
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Publication of EP1808941A1 publication Critical patent/EP1808941A1/fr
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Publication of EP1808941B1 publication Critical patent/EP1808941B1/fr
Active legal-status Critical Current
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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R39/00—Rotary current collectors, distributors or interrupters
    • H01R39/02—Details for dynamo electric machines
    • H01R39/18—Contacts for co-operation with commutator or slip-ring, e.g. contact brush
    • H01R39/24—Laminated contacts; Wire contacts, e.g. metallic brush, carbon fibres
    • 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
    • H01R39/38—Brush holders
    • H01R39/39—Brush holders wherein the brush is fixedly mounted in the holder

Definitions

  • the invention relates to a slip ring brush and a slip ring unit, which is equipped with this slip ring brush, according to claim 1 or claim 9.
  • Slip ring assemblies often include a slip ring brush and slip rings, with the slip ring brush slidingly in contact with rotating slip rings during operation.
  • slip ring units are used in many technical fields to electrical signals or electrical power z. B. to transfer from a stationary to a rotating electrical unit. It is important that a good and lasting contact between the slip ring brush and the slip rings is given about by resilient brush elements, even if, for example, the entire slip ring unit is exposed to vibrations.
  • the invention has for its object to provide slip ring brushes and slip ring units, which can be produced with minimal effort, and which are of high quality with respect to a secure sliding contact even in a small space.
  • the slip ring brush according to the invention comprises a holder and at least one brush element, which has three locally differently arranged regions.
  • the brush element In the first region, the brush element is connected to the holder, or the brush element is fixed there to the holder.
  • the second region is predetermined for contacting with a slip ring and has a cross-sectional geometry with a, in particular for the electrical function, predetermined cross-sectional area.
  • the third region of the brush element has the same cross-sectional area, that is, an equal cross-sectional area, as the second region, and is disposed between the first region and the second region.
  • the cross-sectional geometry of the brush element in the third region is designed so that it deviates from the cross-sectional geometry of the second region.
  • the respective cross-sectional geometries of the second region and third region are thus shaped differently.
  • the effective spring stiffness is that spring stiffness to understand, which is crucial for the reliable operation of a slip ring unit.
  • the effective spring movement of the brush element serves to ensure the sliding contact, even if the corresponding Slip ring has geometric irregularities, or the slip ring unit is exposed during operation vibration.
  • the effective spring stiffness thus refers to the spring property of the brush element in the direction of the slip ring towards or away from the slip ring, or in the radial direction with respect to the axis of rotation of the slip ring unit.
  • the effective forces, which are decisive for the pressing of the brush element on the respective slip ring are directed substantially in the direction of the axis of rotation of the slip ring unit.
  • the cross-sectional geometry of the third region of the brush element is designed so that a reduced bending resistance to bending moments resulting from the pressing forces and which are directed perpendicular to the axis of rotation of the slip ring unit, and thus reduces the spring stiffness of the brush member. This is achieved in particular by reducing the material thickness of the brush element in a direction orthogonal to the axis of rotation of the slip ring unit and transversely to the contour (transverse to the longitudinal direction) of the brush element. Nevertheless, the absolute value of the cross-sectional area is not reduced.
  • the slip ring brush is configured such that the third region of the brush element is arranged closer to the first region than to the second region. This consideration applies to adjacent areas. Since a third region is always arranged between a first region and a second region, the second region is closer to the first region than the second region, along the contour or contour of the brush element.
  • the slip ring brush is designed such that the effective spring stiffness of the brush element refers to spring movements, which have a directional component in a predetermined direction. Then, a dimension of the brush member in the third area is smaller than a dimension of the brush member in the second area, the dimensions being in the same predetermined direction.
  • the brush element has two opposite legs, wherein in particular the brush element is configured so that in each case a second region is arranged on the two opposite legs.
  • At least one of the opposite legs of the brush element is assigned a third area.
  • the second region moves in a direction parallel to this plane.
  • a dimension of the brush element in the third region is smaller than a dimension of the brush element in the second region. Both dimensions are oriented in this direction or apply to this direction.
  • the brush element is thus configured such that the effective spring movements during operation of the respective slip ring unit in a plane, and not skewed in space, run.
  • the reduction of the size of the brush element in its third area is consequently to be determined in a direction parallel to this plane.
  • the special case that the reduced dimension of the brush element lies in this plane is of course also covered by the phrase "parallel".
  • the brush element in the second region has a circular cross-sectional geometry, in which case consequently the cross-sectional geometry of the brush element in the third region deviates from a circular shape.
  • the invention further comprises a slip ring unit comprising at least one slip ring, a holder and at least one brush element.
  • the brush element and the slip ring are rotatable relative to each other about an axis of rotation.
  • the brush element may be configured according to the preceding description. Accordingly, the third region of the brush element lies between the second region (contact section slip ring - brush element) and the first region in which the brush element is connected to the holder.
  • the cross-sectional geometry of the brush element in the third region is also designed here so that this reduction the effective spring stiffness of the brush element deviates from the cross-sectional geometry of the second region.
  • a brush element in the third region has a dimension of the cross-sectional geometry that is greater than a dimension of the cross-sectional geometry of the brush element in the second region, the dimensions being oriented in each case in one direction with a directional component parallel to the axis of rotation, or in particular exactly are oriented parallel to the axis of rotation of the slip ring unit. Because the cross-sectional area in the second and in the third region of the brush element is the same, that of the cross-sectional geometry of the brush element is weakened or tapered in the third region orthogonal to the axis of rotation relative to the second region, so that the effective spring stiffness is reduced.
  • a dimension is smaller than the dimension orthogonal thereto, which dimension is oriented in one direction with a direction component parallel to the rotation axis.
  • the dimension orthogonal thereto may be oriented in a direction parallel to the axis of rotation.
  • the effective spring stiffness refers to spring movements which have a directional component in a direction orthogonal to the axis of rotation.
  • a dimension of the brush element in the third area is smaller than a dimension of the brush element in the second area. Both dimensions are in turn oriented in the direction with the directional component orthogonal to the axis of rotation.
  • the effective spring stiffness therefore usually refers to spring or bending movements, which are aligned about a bending axis parallel to the axis of rotation of the brush element.
  • the cross-sectional geometry of the brush element in the third region is weakened or tapered orthogonally to the bending axis in comparison to the second region, because there the dimension is reduced orthogonal to the axis of rotation in comparison to the second region. The effective spring stiffness is thus also reduced.
  • the slip ring unit is configured such that a dimension of the brush element in the third region in a direction with a direction component parallel to the axis of rotation is greater than a dimension in the third region, which is oriented orthogonal to this direction of the axis of rotation.
  • the brush element in the third region in the direction of the axis of rotation is thicker than in the direction perpendicular to the axis of rotation in such a way that the effective spring stiffness of the brush element is reduced.
  • the dimension of the brush element in the third region is greater than a dimension of the brush element in the second region, wherein the dimensions are each oriented in the same direction with a directional component parallel to the axis of rotation.
  • the slip ring has a circumferential groove, wherein the brush element rests in its second area in this groove.
  • the groove has a V-shaped geometry. Especially the combination of a circular cross-sectional geometry of the second region with a V-shaped groove contributes to a high-quality electrical sliding contact.
  • the slip ring brush comprises a holder 1, which is rigid in the presented embodiment and is designed as a printed circuit board. With the holder 1 are brush elements 2, which are designed in the example shown as a wire hanger connected.
  • the brush elements 2 comprise three locally differently arranged regions 2.1, 2.2, 2.3, which each fulfill different functions.
  • two so-called first regions 2.1 are provided on the brush elements 2, in which the respective brush element 2 is connected to the holder 1.
  • Said connection is achieved via two attachment points 4, which are designed here as soldering points and thus represent a mechanical and an electrical connection of the brush element 2 in the first areas 2.1 with the holder 1.
  • the soldering points are designed as plated-through holes, so that solder pads 1.1 are in electrical contact with the brush elements 2 on the opposite side (relative to the brush element 2) of the holder 1. At this solder pads 1.1 connecting cable can be contacted, so that the brush elements 2 can be electrically connected to another device.
  • the representation of the connection cable was omitted.
  • the brush elements 2 which are all of identical construction here, furthermore have a second region 2.2, which is characterized in that it has a circular cross-sectional geometry Q 2 with a cross-sectional area A and a diameter d.
  • the second region 2.2 is also predetermined for contacting with a slip ring 3.1, and is in the assembled slip ring unit on slip ring 3.1 on.
  • the brush elements 2 are made in the presented embodiment of a 20 mm long wire with a diameter of 0.2 mm by a bending process.
  • the cross-sectional area A thus results in about 3.14 ⁇ 10 -2 mm 2 .
  • Each brush element 2 also has a third region 2.3.
  • the respective third region is characterized, inter alia, by the fact that it is arranged between the first region 2.1 - the connection point to the holder 1 - and the second region 2.2. Starting from a second area 2.2, following the course of the brush element or the wireframe, therefore initially comes a third area 2.3, before a first area 2.1 is reached.
  • each of the third regions 2.3 has a specific cross-sectional geometry Q 3 , whose function will be discussed below.
  • the brush elements 2 also each have three legs 2a, 2b, 2c and have a substantially U-shaped or ⁇ -shaped, so that the brush elements 2 each have an opening. Accordingly, two legs 2a, 2b face each other, wherein each of these legs 2a, 2b each have a second area 2.2 can be assigned.
  • the brush elements 2 are configured symmetrically with respect to a virtual line which intersects the leg 2c centrally and orthogonally.
  • the holder 1 and the brush elements 2 thus form the slip ring brush, which in the embodiment shown represents the stator in a slip ring unit.
  • the holder 1 comes to lie according to the figures parallel to an x, y plane.
  • a rotor 3 is provided in a slip ring unit, which consists of a plurality of electrically conductive slip rings 3.1 here.
  • the slip rings 3.1 are axially lined up on an insulating support sleeve 3.2, wherein between adjacent slip rings 3.1 an electrically non-conductive insulating ring 3.3 is arranged.
  • all slip rings 3.1 are arranged coaxially.
  • the axis of rotation of the rotor 3 is simultaneously the axis of rotation Y of the slip ring unit, so that the rotor 3 is rotatable about the axis of rotation Y relative to the slip ring brush.
  • Each slip ring 3.1 has a circumferential groove 3.11, which in the example shown in a sectional plane on which the axis of rotation Y is located, has a V-shaped geometry. On their inside, the slip rings 3.1 are electrically contacted, each with a cable, which is not shown in the figures for clarity.
  • Each brush element 2 abuts in its second regions 2.2 on a slip ring 3.1, and is thus with this in mechanical and electrical Contact.
  • a section ZZ parallel to the x, y plane which passes through the brush elements 2 in the second areas 2.2.
  • the brush elements 2 have in their second regions 2.2 a circular cross-sectional geometry Q 2 with a cross-sectional area A and a diameter d (see also FIG Fig. 3 ).
  • a high-quality running behavior of the slip ring unit is achieved. Any axial relative displacements between the brush element 2 and the slip ring 3.1 during operation of the slip ring unit are prevented by the guide in the V-groove 3.11.
  • the electrical current to be transmitted is thus introduced, for example, from the slip ring 3.1 in the two second regions 2.2 each brush element 2 and then flows to the attachment points 4.
  • About Lötpads 1.1 and connection cable to the bottom of the holder 1 then the electrical current to a stator-side device on be directed.
  • a decisive factor for this behavior is the effective spring stiffness of the brush element 2.
  • the geometric plane E is arranged orthogonal to the x, y plane.
  • the opposite legs 2a, 2b in particular in the second regions 2.2 in the x-direction (see figures) or orthogonal to the axis of rotation Y in the plane E move.
  • the distance X between the two opposing second regions 2.2 can change due to the effective spring movement, or that the distance between the axis of rotation Y and a second region 2.2 can be variable, for. B. with eccentricity errors.
  • the cross-sectional geometry Q 3 of the brush element 2 differs in each case in the third region 2.3 from the cross-sectional geometry Q 2 of the second Area 2.2, which is a circular shape, from.
  • this deviation is such that a dimension x 3 in the third area 2.3 of the brush element 2 in the direction x is smaller than the diameter d or the dimension x 2 .
  • the direction x is aligned parallel to the plane E or orthogonal to the axis of rotation Y.
  • the brush element 2 is therefore narrower or tapered in the third region 2.3 corresponding to the dimension x 3 in the x direction, while it has a thickening in the y direction with the dimension y 3 with respect to the dimension y 2 .
  • the cross-sectional geometries Q 2 , Q 3 of the second regions 2.2 and the third regions 2.3 are generated by cuts in planes which are each aligned perpendicular to the central axis of the bent wire constituting the brush element 2.
  • the cross-sectional geometries Q 2 , Q 3 are the shape or shape of the wire cross-sections in the respective regions 2.2, 2.3.
  • the dimension x 2 does not correspond exactly to the diameter d of the cross-sectional geometry Q 2 because the orientation of the brush element 2 in the second regions 2.2 has both a z and an x component.
  • the required effective contact force is ensured, so that the brush element 2 in the second region 2.2 permanently abuts the slip ring 3.1.
  • the effective contact forces which are decisive for the pressing of the brush element 2 on the respective slip ring 3.1, are thus aligned substantially in the radial direction to the axis of rotation Y of the slip ring unit. Due to the oval configuration of the cross-sectional geometry Q 3 , or by the reduced dimension x 3 of the brush element 2 in its third region 2.3 (FIG. Fig. 3b ) with respect to the dimension d or x 2 , the effective spring stiffness of the entire brush element 2 is reduced.
  • the reduced dimension x 3 of the brush element 2 refers to the x-direction, ie transverse to the longitudinal axis of the wire, from which the brush element 2 is made.
  • the x-direction is also, as already stated, directed orthogonal to the axis of rotation Y of the slip ring unit.
  • the cross-sectional area A in the third region 2.3 of the brush element 2 is also here, as in the second region 2.2 of the brush element 2, about 3.4 ⁇ 10 -2 mm 2 .
  • each brush element 2 was in the course of production of a piece of wire in the relevant third area 2.3 formed without cutting, such as by pressing. In this way, an optimized performance of the slip ring unit can be achieved easily and with low production costs. Due to the fact that the material of the brush element 2 is incompressible, the cross-sectional area A required to conduct the transfer current is also not reduced by the pressing at any point.
  • the brush element 2 has, moreover, only in the third region 2.3 a deviating from the circular cross-sectional geometry Q 3 , otherwise, the brush element 2 has a round cross-sectional geometry Q 2 with the diameter d.
  • the operating behavior of the slip ring unit is further improved by the fact that the brush element 2 is designed such that the third region 2.3 lies comparatively close to the attachment point or to the first region 2.1 of the brush element 2.
  • the distance between the third region 2.3 of the brush element 2 and the second region 2.2 is dimensioned relatively large.
  • the brush element 2 is designed such that in each case its third region 2.3 is arranged closer to the adjacent first region 2.1 than to the likewise adjacent second region 2.2.
  • the portion of the brush element 2 between the first region 2.1 and the third region 2.3 is shorter than the section of the brush element 2 between the second region 2.2 and the third region 2.3.
  • the effective spring stiffness is reduced, however, the effective pressure forces are not reduced by the measures described, because the geometry of the brush element 2 and thus the corresponding deformation in the slip ring unit is tuned to the required height of the pressure forces.
  • the holder 1 and the brush elements 2 serve as a stator, while the slip rings 3.1 are assigned to the rotor 3 of the slip ring unit.
  • the operation of the slip ring unit can also be reversed, so that holder 1 and the brush elements 2 rotate and the slip rings are 3.1.
  • the location and orientation of the geometric axis of rotation Y of the slip ring unit remain the same regardless of the mode of operation selected.

Landscapes

  • Motor Or Generator Current Collectors (AREA)

Claims (20)

  1. Balai pour bague collectrice, constitué d'un support (1) et d'un élément de balai (2) comportant trois régions (2.1, 2.2, 2.3), dans lequel l'élément de balai (2)
    - est relié au support (1) dans la première région (2.1),
    - présente une géométrie de section transversale (Q2) avec une surface de section transversale (A), dans la deuxième région (2.2) prédestinée à la mise en contact avec une bague collectrice (3.1),
    - présente dans la troisième région (2.3) la même surface de section transversale (A) que dans la deuxième région (2.2),
    et l'élément de balai (2) est en outre conçu de telle manière, que sa troisième région (2.3) se trouve entre la première région (2.1) et la deuxième région (2.2),
    caractérisé en ce que
    dans la troisième région (2.3), la géométrie de section transversale (Q3) de l'élément de balai (2) est conçue de telle manière, qu'elle se distingue de la géométrie de section transversale (Q2) de la deuxième région (2.2), dans le but de réduire la dureté de ressort active.
  2. Balai pour bague collectrice selon la revendication 1, caractérisé en ce que l'élément de balai (2) est conçu de telle manière, que la troisième région (2.3) se trouve plus près de la première région (2.1) que de la deuxième région (2.2).
  3. Balai pour bague collectrice selon l'une des revendications 1 ou 2, caractérisé en ce que la dureté de ressort active de l'élément de balai (2) concerne des mouvements de ressort présentant une composante de direction dans une direction (x), et en ce qu'une dimension (x3) de l'élément de balai (2) dans la troisième région (2.3) est plus petite qu'une dimension (x2) de l'élément de balai (2) dans la deuxième région (2.2), les dimensions (x2, x3) étant orientées dans la direction (x).
  4. Balai pour bague collectrice selon l'une des revendications précédentes, caractérisé en ce que l'élément de balai (2) comporte deux branches (2a, 2b) disposées l'une en face de l'autre.
  5. Balai pour bague collectrice selon la revendication 4, caractérisé en ce que l'élément de balai (2) comporte une deuxième région (2.2) sur chacune des branches (2a, 2b) disposées l'une en face de l'autre.
  6. Balai pour bague collectrice selon la revendication 5, caractérisé en ce qu'au moins l'une des branches (2a, 2b) disposées l'une en face de l'autre de l'élément de balai (2) comporte la troisième région (2.3), des mouvements de ressort de l'élément de balai (2) dans un plan (E) produisant un mouvement de la deuxième région (2.2) dans une direction (x) parallèle à ce plan (E), et une dimension (x3) de l'élément de balai (2) dans la troisième région (2.3) étant inférieure à une dimension (x2) de l'élément de balai (2) dans la deuxième région (2.2), les dimensions (x2, x3) étant orientées dans la direction (x).
  7. Balai pour bague collectrice selon l'une des revendications précédentes, caractérisé en ce que l'élément de balai (2) présente une géométrie de section transversale (Q2) de forme circulaire dans la deuxième région (2.2), et en ce qu'une géométrie de section transversale (Q3) de l'élément de balai (2) est conçue de telle manière dans la troisième région (2.3), qu'elle se différencie de la forme circulaire.
  8. Balai pour bague collectrice selon la revendication 7, caractérisé en ce que la dureté de ressort active de l'élément de balai (2) concerne des mouvements de ressort présentant une composante de direction dans une direction (x), et en ce que dans la direction (x), une dimension (x3) de l'élément de balai (2) est plus petite dans la troisième région (2.3) que le diamètre (d) de l'élément de balai (2) dans la deuxième région (2.2).
  9. Unité de bague collectrice, constituée d'une bague collectrice (3.1) et d'un élément de balai (2) comportant trois régions (2.1, 2.2, 2.3), et dans laquelle l'élément de balai (2) et la bague collectrice (3.1) peuvent être en rotation l'un par rapport à l'autre, autour d'un axe de rotation (Y), l'élément de balai (2)
    - étant relié au support (1) dans la première région (2.1),
    - présentant une géométrie de section transversale (Q2) avec une surface de section transversale (A), et se trouvant en contact avec la bague collectrice (3.1) dans la deuxième région (2.2), et
    - présentant, dans la troisième région (2.3), la même surface de section transversale (A) que dans la deuxième région (2.2),
    caractérisée en ce que
    dans la troisième région (2.3), la géométrie de section transversale (Q3) de l'élément de balai (2) est conçue de telle manière, qu'elle se distingue de la géométrie de section transversale (Q2) de la deuxième région (2.2), dans le but de réduire la dureté de ressort active.
  10. Unité de bague collectrice selon la revendication 9, caractérisée en ce qu'une dimension (y3) de la géométrie de section transversale (Q3) de l'élément de balai (2) dans la troisième région (2.3) est plus grande qu'une dimension (y3) de la géométrie de section transversale (Q2) de l'élément de balai (2) dans la deuxième région (2.2), les dimensions (y2, y3) étant toutes deux orientées dans une direction (y) avec une composante de direction parallèle à l'axe de rotation (Y).
  11. Unité de bague collectrice selon l'une des revendications 9 ou 10, caractérisée en ce que dans la géométrie de section transversale (Q3) de la troisième région (2.3) de l'élément de balai (2), une dimension (x3) est inférieure à la dimension (y3) orthogonale à celle-ci, qui est orientée dans une direction (y) avec une composante de direction parallèle à l'axe de rotation (Y).
  12. Unité de bague collectrice selon l'une des revendications 9 à 11, caractérisée en ce que l'élément de balai (2) (2) est conçu de telle manière, que la troisième région (2.3) se trouve plus près de la première région (2.1) que de la deuxième région (2.2).
  13. Unité de bague collectrice selon l'une des revendications 9 à 12, caractérisée en ce que la dureté de ressort active de l'élément de balai (2) concerne des mouvements de ressort présentant une composante de direction dans la direction (x) - orthogonalement à l'axe de rotation -, et en ce qu'une dimension (x3) de l'élément de balai (2) dans la troisième région (2.3) est inférieure à une dimension (x2) de l'élément de balai (2) dans la deuxième région (2.2), les dimensions (x2, x3) étant orientées dans la direction (x).
  14. Unité de bague collectrice selon l'une des revendications 9 à 13, caractérisée en ce que l'élément de balai (2) comporte deux branches (2a, 2b) situées l'une en face de l'autre.
  15. Unité de bague collectrice selon la revendication 14, caractérisée en ce que l'élément de balai (2) comporte une deuxième région (2.2) sur chacune des deux branches (2a, 2b) disposées l'une en face de l'autre.
  16. Unité de bague collectrice selon l'une des revendications 14 ou 15, caractérisée en ce qu'au moins l'une des branches (2a, 2b) disposées l'une en face de l'autre de l'élément de balai (2) comporte la troisième région (2.3), des mouvements de ressort de l'élément de balai (2) dans un plan (E) produisant un mouvement de la deuxième région (2.2) dans une direction (x) parallèle à ce plan (E), et une dimension (x3) de l'élément de balai (2) dans la troisième région (2.3) étant inférieure à une dimension (x2) de l'élément de balai (2) dans la deuxième région (2.2), les dimensions (x2, x3) étant orientées dans la direction (x).
  17. Unité de bague collectrice selon l'une des revendications 9 à 16, caractérisée en ce qu'une dimension (y3) de l'élément de balai (2) dans la troisième région (2.3), dans une direction (y) avec une composante de direction parallèle à l'axe de rotation (Y), est plus grande qu'une dimension (x3) dans la troisième région (2.3), orientée orthogonalement à la direction (y).
  18. Unité de bague collectrice selon l'une des revendications 9 à 17, caractérisée en ce que la bague collectrice (3.1) comporte une rainure circonférentielle (3.11) et en ce que la deuxième région (2.2) de l'élément de balai (2) s'applique dans la rainure (3.11).
  19. Unité de bague collectrice selon la revendication 18, caractérisée en ce que la rainure (3.11) présente une géométrie en forme de V.
  20. Unité de bague collectrice selon l'une des revendications 9 à 19, caractérisée en ce que l'élément de balai (2) présente une géométrie de section transversale (Q2) de forme circulaire dans la deuxième région (2.2), et en ce que dans la troisième région (2.3), la géométrie de section transversale (Q3) de l'élément de balai (2) est conçue de telle manière qu'elle se différencie de la forme circulaire.
EP06021459A 2006-01-17 2006-10-13 Balais pour bague collectrice et dispositif de bague collectrice le contenant Active EP1808941B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102006002104A DE102006002104A1 (de) 2006-01-17 2006-01-17 Schleifringbürste und damit ausgestattete Schleifringeinheit

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CN102005682B (zh) * 2009-09-03 2014-04-16 深圳富泰宏精密工业有限公司 连接器及应用该连接器的便携式电子装置
CN103282081B (zh) * 2010-12-08 2017-06-23 伊利克塔股份有限公司 放射治疗设备
DE102011006820A1 (de) * 2011-04-06 2012-10-11 Schleifring Und Apparatebau Gmbh Vibrationsfeste Schleifringanordnung
DE102012204830A1 (de) * 2012-03-26 2013-09-26 Schleifring Und Apparatebau Gmbh Bürstenblock für eine Schleifringanordnung
EP2903103B1 (fr) * 2014-01-31 2019-01-02 LTN Servotechnik GmbH Brosse et système de bague collectrice doté d'une brosse
CN105981266B (zh) * 2014-02-10 2019-06-25 三菱电机株式会社 旋转电机以及旋转电机的线圈的制造方法
US10252402B2 (en) * 2014-09-03 2019-04-09 Yokota Industrial Co., Ltd. Impact fastening tool and torque tester
WO2017019023A1 (fr) * 2015-07-27 2017-02-02 Hewlett-Packard Indigo B.V. Structure en plastique conductrice
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CN111834851A (zh) * 2019-04-17 2020-10-27 泓记精密股份有限公司 电刷丝结构、电刷模块结构及其制造方法

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Publication number Publication date
EP1808941A1 (fr) 2007-07-18
CN101005185A (zh) 2007-07-25
US7719158B2 (en) 2010-05-18
US20070167032A1 (en) 2007-07-19
CN101005185B (zh) 2011-08-31
DE102006002104A1 (de) 2007-07-19
ATE407466T1 (de) 2008-09-15
DE502006001487D1 (de) 2008-10-16

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