EP2076946A1 - Plankommutator - Google Patents
PlankommutatorInfo
- Publication number
- EP2076946A1 EP2076946A1 EP07820516A EP07820516A EP2076946A1 EP 2076946 A1 EP2076946 A1 EP 2076946A1 EP 07820516 A EP07820516 A EP 07820516A EP 07820516 A EP07820516 A EP 07820516A EP 2076946 A1 EP2076946 A1 EP 2076946A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- plankommutator
- web
- axial
- segment support
- sections
- 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
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R39/00—Rotary current collectors, distributors or interrupters
- H01R39/02—Details for dynamo electric machines
- H01R39/04—Commutators
- H01R39/06—Commutators other than with external cylindrical contact surface, e.g. flat commutators
Definitions
- the invention relates to a planar commutator according to the preamble of claim 1.
- FIG. 5 shows a side view of an in-house state of the art.
- This plan commutator 1 has a hub body 2 made of plastic, which is rotatably connected to an armature shaft in its use in an electric machine.
- a plurality of spaced-apart contact segments 4, in particular coal segments, are arranged in the circumferential direction, which form a flat brush surface 5 for at least one carbon brush on the face side.
- Each contact segment 4 is fixedly connected to a radial portion of a segment support member 6.
- Each radial section merges into an axial section 7 angled off at 90 °, at the end remote from the radial section of which a winding connection hook 8 for fixing winding wire, in particular in the hot-staking method, is provided.
- a winding connection hook 8 for fixing winding wire in particular in the hot-staking method.
- Each web 9 has a radial extent of about 2 mm, which merges radially inward into the hub body. This corresponds approximately to the material thickness of the axial sections 7 in the radial direction.
- the opposite longitudinal sides 10, 11 each Web 9 are aligned parallel to each other, so that the web 9 in the illustrated side view has a substantially rectangular peripheral profile.
- a disadvantage of the known flat commutator 1 is that it can come during the assembly of the plan commutator 1 to an electric machine to break or shearing of parts of the webs 9 and these fragments settle in air gaps 12 between the contact segments 4. During operation of an electric machine equipped with the illustrated plan commutator 1, these fragments may be released from the air gaps 12 and as a consequence damage the electrical machine or other components, in particular when the commutator is used in a fuel pump.
- the invention is therefore based on the object to propose a plan commutator with a more robust hub body.
- the invention is based on the idea of stabilizing the hub body on the edge side in the hook-side end region and / or in the axially opposite one form the contact segment-side end region widened in the circumferential direction. This avoids breaking off or shearing off parts of the web during further processing of the planar commutator in the armature of an electrical machine. Due to the broadening in the circumferential direction in at least one axial end region of the web, inter alia, a more favorable for plastics fiber profile is realized, which has a positive effect on the robustness of the preferably formed of plastic hub body.
- the materials used for producing the hub body are preferably thermosets with glass fibers or glass beads and / or similar other solidifying elements, their homogeneous distribution due to a larger plastic mass also contributes to the broadened section of the webs to stabilize and increase the mechanical strength of the hub body in these areas.
- the extent of the webs in the radial direction is low.
- the radial extent of the webs at least substantially the radial extent (material thickness) of the flat, substantially plate-shaped, extending in the axial and circumferential direction axial sections of preferably formed of copper or a copper alloy tion segment support members.
- the webs have mainly the task of covering the mutually facing side surfaces of the axial sections, on the one hand electrically isolate against each other and on the other hand to protect against the attack of aggressive media, such as fuel. This is especially important if the commentator is part of a fuel flow fuel pump.
- the radial extent of the webs is about 1 mm to 2 mm, preferably about 1.5 mm, wherein the webs merge radially inward into the hub body.
- the webs are trapezoidal or V-shaped widening.
- the widening portion preferably has two, at an angle to each other extending, flat sloping sides.
- the axial sections of the segment support members abut against the webs spaced therefrom, so that the peripheral contour of the axial sections and the contour of the webs are adapted to one another. It follows that the axial sections are formed narrowed in at least one axial end portion in the circumferential direction. As a result, sharp-edged corner regions, as occur in the essentially rectangularly contoured axial sections of the prior art, are reduced, preferably avoided, whereby heat concentrations in the peripheral regions of the axial sections, as regularly occur in known planar commutators, are advantageously avoided.
- a recess is provided in the axial sections of the segment support parts, preferably on the side adjacent to the contact segments, which is contoured arcuately at least in sections in order to direct the heat flow from the winding connection hook to the fastening sections deteriorate, whereby a deterioration of the connection (in particular solder joint) between contact segments and mounting portions in the attachment of winding wire to the winding connection hook by means of the hot-staking process is avoided.
- the recess which is preferably filled with Naben redesign- rial, serves as an additional anchorage for the corresponding segment support member, which at least partially obliquely or perpendicularly projecting into the hub body anchoring claws can be dispensed with, which facilitates the production and handling of the Segmenttragmaschine.
- Another advantage in providing such a recess is due to the fact that the risk of cracking, especially in marginal Naben redesignab- cuts with low wall thickness is minimal. This is due, inter alia, to an improved material flow of the hub body material through the recess and increased material thickness in the area of the recess.
- a plastic molding compound preferably come thermosets with strengthening elements for use.
- the widened design of the webs has a particularly advantageous effect on the resistance to tensile and / or compressive forces.
- FIG. 1 is a side view of a first embodiment of a plan commutator
- FIG. 2 shows a side view of a further embodiment of a plan commutator
- FIG. 3 shows a plan view of the brush running surface of a flat commutator
- Fig. 4 is a sectional view of the plan commutator of FIG. 3 along the section line A-A and
- FIG. 5 shows a plan commutator in side view according to the prior art.
- a plan commutator 1 for an otherwise known electric machine is shown.
- the flat commutator 1 is in the mounted state in the direction of its longitudinal axis L. penetrated by an armature shaft and rotatably connected thereto.
- the plan commutator 1 has a plastic hub body 2. At the end face 3 shown in a plan view in FIG. 3, a plurality of spaced-apart contact segments 4 made of carbon are arranged in the circumferential direction. These together form an end-face, planar brush running surface for at least one brush of the electric machine (not shown).
- Each contact segment 4 is soldered to a radially extending, plate-shaped, shown in Figure 4, radial portion 13 of a formed as a stamped bent part segment support member 6 made of copper and thus firmly and electrically conductively connected. Radially outward, each radial section 13 merges into an axial section 7 of the segment support part 6 extending coaxially to the longitudinal axis L. At the free end of each axial section 7, a winding connection hook 8 is provided for fastening winding wire of the armature winding of the electrical machine.
- each web 9 which is formed integrally with the hub body 2 is provided between each two circumferentially adjacent axial sections 7, an extending in the axial direction web 9, which is formed integrally with the hub body 2, is provided between each two circumferentially adjacent axial sections 7, as is apparent in particular from FIG. 1, between each two circumferentially adjacent axial sections 7, an extending in the axial direction web 9, which is formed integrally with the hub body 2, is provided.
- the not shown extension of the web 9 in the radial direction substantially corresponds to the thickness d (material thickness) of the axial sections 7 to be taken from FIG. 4 in the radial direction.
- each web 9 abuts the two adjacent axial sections 7 of the segment support members 6.
- the width of the Webs 9 in the circumferential direction In a central region, the webs 9 have a small width bi. The width increases in the direction of winding connection hook 8 looking in the circumferential direction.
- the webs 9 In the axial end regions, the webs 9 have a greater width b2, which corresponds approximately to twice the width bi in the middle region of the webs 9. From Fig. 1 it can be seen that the longitudinal sides 10, 11 in the widening axial portion of the web 9 arcuately curved in opposite circumferential directions. As a result of the fact that the webs 9 widen in an arcuate manner in the circumferential direction in the axial direction, the axial sections 7 in this area narrow correspondingly to an arcuate contour, whereby corner regions and thus heat concentration points are avoided.
- a circumferentially closed recess 15 is introduced into the axial sections 7 of the segment support members 6 on the side opposite the winding connection hooks 8.
- an edge-side open recess can also be provided.
- the formation of the axial sections 7 and via the recess 15 reduces the heat transfer between the winding connection hooks 15 and the radial sections.
- the recess 15 it is achieved by the recess 15 that the axial sections 7 axially adjacent peripheral wall portions 16, which has a low material thickness and seal the contact segments 4 radially outward, less prone to cracking.
- the embodiment according to FIG. 2 essentially corresponds to the exemplary embodiment according to FIG. 1, so that only the differences will be discussed below. Concerning the similarities reference is made to the previous description.
- the webs 9 widen in the embodiment of FIG. 2 in the area of the winding connection hooks 8 in the circumferential direction not curved or arcuate, but V- or trapezoidal.
- the width bi of the webs starting from an axially central region in the circumferential direction to a width b 2 in an axial end region of the webs 9 to.
- edge corners of the axial section 7 are not avoided - the remaining corners are less pointed, whereby a heat concentration at these points is at least reduced.
- the webs 9 can also be widened in the circumferential direction in the axially opposite end region into which the slot 14 is made in this exemplary embodiment.
Landscapes
- Motor Or Generator Current Collectors (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200610046666 DE102006046666A1 (de) | 2006-09-29 | 2006-09-29 | Plankommutator |
PCT/EP2007/060110 WO2008040654A1 (de) | 2006-09-29 | 2007-09-24 | Plankommutator |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2076946A1 true EP2076946A1 (de) | 2009-07-08 |
EP2076946B1 EP2076946B1 (de) | 2015-11-18 |
Family
ID=38830336
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP07820516.8A Not-in-force EP2076946B1 (de) | 2006-09-29 | 2007-09-24 | Plankommutator |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP2076946B1 (de) |
CN (1) | CN101523671B (de) |
BR (1) | BRPI0717278A2 (de) |
DE (1) | DE102006046666A1 (de) |
RU (1) | RU2447556C2 (de) |
WO (1) | WO2008040654A1 (de) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102011052881B4 (de) | 2011-08-22 | 2018-05-17 | Robert Bosch Automotive Steering Gmbh | Verfahren zur Bestimmung einer Zahnstangenkraft für eine Lenkvorrichtung in einem Fahrzeug, Lenkvorrichtung und Steuer- und/oder Regeleinrichtung für eine Lenkvorrichtung |
DE102012010251A1 (de) * | 2012-05-25 | 2013-11-28 | Robert Bosch Gmbh | Plankommutator und Verfahren zur Montage eines Plankommutators auf eine Welle einer elektrischen Maschine |
KR102233276B1 (ko) * | 2014-01-06 | 2021-03-29 | 엘지이노텍 주식회사 | 모터의 정류자 및 이를 포함하는 모터 |
CN109245445A (zh) * | 2017-07-11 | 2019-01-18 | 德昌电机(深圳)有限公司 | 电机及发动机空气管理装置 |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SU589654A1 (ru) * | 1974-09-30 | 1978-01-25 | Московский Завод Автотракторного Электрооборудования Атэ-1 | Торцевой коллектор электрической машины |
DE4028420A1 (de) * | 1990-09-07 | 1992-03-12 | Kautt & Bux Kg | Plankommutator und verfahren zu seiner herstellung |
DE4140475C2 (de) * | 1991-12-09 | 1995-01-19 | Kolektor D O O | Verfahren zur Herstellung eines Preßstoff-Plankommutators |
DE19514795C1 (de) * | 1995-04-21 | 1996-06-05 | Anton Holzhauer Umformtechnik | Verfahren zur Herstellung eines Kommutators |
DE19525584A1 (de) * | 1995-07-13 | 1997-01-16 | Kautt & Bux Commutator Gmbh | Verfahren zur Herstellung eines Plankommutators |
DE69839598D1 (de) * | 1997-08-21 | 2008-07-24 | Aisan Ind | Kommutator mit verbesserten segmentverbindungen |
DE19859006A1 (de) * | 1998-12-21 | 2000-06-29 | Bosch Gmbh Robert | Anker mit Plankommutator für einen Elektromotor |
DE19925286A1 (de) * | 1999-06-02 | 2000-12-07 | Kolektor D O O | Verfahren zur Herstellung eines Plankommutators sowie ein nach diesem Verfahren hergestellter Plankommutator |
DE10048594A1 (de) * | 2000-09-30 | 2002-05-02 | Bosch Gmbh Robert | Stirnkommutator |
-
2006
- 2006-09-29 DE DE200610046666 patent/DE102006046666A1/de not_active Withdrawn
-
2007
- 2007-09-24 CN CN2007800365278A patent/CN101523671B/zh not_active Expired - Fee Related
- 2007-09-24 WO PCT/EP2007/060110 patent/WO2008040654A1/de active Application Filing
- 2007-09-24 BR BRPI0717278-8A patent/BRPI0717278A2/pt not_active IP Right Cessation
- 2007-09-24 RU RU2009115951/07A patent/RU2447556C2/ru not_active IP Right Cessation
- 2007-09-24 EP EP07820516.8A patent/EP2076946B1/de not_active Not-in-force
Non-Patent Citations (1)
Title |
---|
See references of WO2008040654A1 * |
Also Published As
Publication number | Publication date |
---|---|
WO2008040654A1 (de) | 2008-04-10 |
BRPI0717278A2 (pt) | 2013-10-22 |
CN101523671B (zh) | 2012-05-30 |
RU2447556C2 (ru) | 2012-04-10 |
RU2009115951A (ru) | 2010-11-10 |
EP2076946B1 (de) | 2015-11-18 |
DE102006046666A1 (de) | 2008-04-03 |
CN101523671A (zh) | 2009-09-02 |
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