CN110462945A - Earthing contact - Google Patents
Earthing contact Download PDFInfo
- Publication number
- CN110462945A CN110462945A CN201880021331.XA CN201880021331A CN110462945A CN 110462945 A CN110462945 A CN 110462945A CN 201880021331 A CN201880021331 A CN 201880021331A CN 110462945 A CN110462945 A CN 110462945A
- Authority
- CN
- China
- Prior art keywords
- brush
- brush box
- substrate
- earthing contact
- box
- 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
- H01R39/38—Brush holders
- H01R39/39—Brush holders wherein the brush is fixedly mounted in the holder
Abstract
The present invention relates to a kind of for making the earthing contact turned to current controlledly, the earthing contact has brush carrier (2), wherein, which includes substrate (3) and at least one brush box (4) for being used to accommodate brush (6) and at least one described brush box (4) is connect with the substrate (3) form locking.
Description
Technical field
The present invention relates to a kind of earthing contacts for making to turn to current controlledly according to the features of claim 1.
Background technique
Earthing contact is a kind of electric bridge in low Europe, which protects the key position of component from as caused by high current
Damage.In railway technology, earthing contact guides electric current around key position (such as wheel bearing).
A kind of brush carrier as known to DE4127336A1, the brush carrier on the rail vehicle the component being moved relative to each other it
Between constitute reflowing contact and/or earthing contact.The brush carrier has the brush box and at least one pressure of at least one metal
Device, brush are movably disposed in the brush box, and the pressure apparatus is maintained in the recess portion in brush box and will
Power is applied on an end of brush.The brush box is integrally transitioned into substrate.Substrate with brush box is casting.
In addition, the manufacture of this brush carrier is complicated due to the in-profile of brush box.The brush box of casting must be with phase
High cutting output is cut.These tools are at high cost.Further drawback is that brush box is not subjected to standardization and therefore electricity
The size of brush box may change.
Summary of the invention
The object of the present invention is to provide a kind of earthing contact with compact and robust brush carrier, the earthing contacts
It can manufacture at low cost and simply and be suitable for standardizing.
The task is solved by a kind of earthing contact with brush carrier of feature with claim 1.
Advantageous further improvement scheme of the invention provides in the dependent claims.
The present invention relates to a kind of ground connection touchings for making to turn to (that is, guiding electric current controllably) current controlledly
Point.The earthing contact includes the brush carrier that there is substrate to be used to accommodate the brush box of brush at least one.At least one described electricity
Brush box is connect with substrate form locking.
The advantages of earthing contact according to the invention is the modular frame mode for brush box.By the way that brush carrier is drawn
It is divided into substrate and the brush box separately manufactured with substrate reduces cost for machining step.Substrate and brush box can be with
It is manufactured apart from each other by laser and water jet cutting method.No longer generate model for mold in casting method with
Die cost.Lead to lesser cutting output using the processing of laser and water jet method.Entire brush box no longer needs to be cut ground
It cuts out.The flexibility of manufacturing method can be improved by the modular construction principle of brush carrier and reduce manufacturing time.It presses
According to the present invention, by the modular construction principle of brush carrier it is possible that the construction with substrate independently makes brush box standardization simultaneously
And it is manufactured as bulk article.
Present invention provide that brush box is implemented as be used for it is corresponding general with 40 × 20mm or 32 × 12.5mm size
The standarized component of brush.Standardization brush box with other sizes can equally be used in the present invention.The brush is preferred
For metal-graphite brush, it is also referred to as carbon brush.However the brush can also be by other metals or gold with high conductivity
Belong to alloy to be made and for example can wrap cupric, silver or molybdenum.
The earthing contact has the contact device in the form of twisted wire, and the twisted wire may be connected on substrate and incite somebody to action
Electric current is directed on brush.The twisted wire is flexible and allows to track brush under the influence of spring force.Base
Connection between plate and twisted wire realizes that twisted wire is connect by the pipe type cable by the pipe type cable connector lug on twisted wire
The end of a thread and substrate are threadedly coupled electrically conductively.
It is important to the present invention that the form locking between substrate and brush box connects.There is substrate at least one brush box to connect
Portion is received to receive at least one described brush box.It is connected by the form locking of substrate and brush box, for example, if brush box quilt
It is damaged or worn out, can simply assemble brush box and simply replaces brush box when needed.The form locking connects
Disengagable.
The substrate of bearing is preferably the plate for the plane by conductive material, being especially made of metal.Advantageously, brush box has
Clamping tongue, brush box are maintained on substrate by the clamping of these clamping tongues.These clamping tongues are excellent on its free end
Choosing has hook, these hooks act on behind the edge of substrate center brush box receptacle.Brush box is arranged in extremely in clamping tongue
On few three sides.Because brush is substantially rectangle, brush box also has the cross section of substantial rectangular.Clamp tongue
The diametrically opposite arragement construction of piece is ideal.The arragement construction of three clamping tongues also can be realized the abundant of brush box
It is fixed.It is connect with the form locking of clamping tongue and has the advantages that the connection between substrate and brush box can be not other
It is realized in the case where immobilising device (such as screw, pin or rivet) and thus cancels the tool of using.This makes assembly become to hold
Easily.The clamping force of clamping tongue selects big in this way, so that clamping tongue need not be fixed against rebound by additional immobilising device.
Brush box preferably has the supporting surface being used to support on the downside of substrate.Preferably, the supporting surface and clamping tongue
The end of the fixation of piece is adjacent.Brush box is kept in a direction perpendicular to a substrate clampedly as a result,.
Preferably, brush box is completely through brush box receptacle.Clamping tongue or hook stretch out substrate.It is connected by form locking
With the combination for clamping connection, brush box is reliably fixed and ensures the correct guidance of brush.
Substrate can have multiple brushes the brush box receptacle of respective numbers.It is possible thereby to transmit bigger electricity
Stream.Safety in operation is similarly obtained raising.Preferably, there are three brush box body receptacles for substrate tool.Here, each brush box can
With preferably separately made.It is also possible that multiple brush box component common as one is manufactured, the common component
Then it is connect with substrate.
In order to spring force to be applied on the brush in brush box along the longitudinal direction of brush box, it is provided with spring element,
The spring element is preferably configured as wind spring item.The task of the spring element be spring force is applied on brush so that
Brush always sticks on slide mass to transmit electric current.Preferably, spring element is fixed in brush box.For this purpose, spring is protected
Gripping member is assembled in brush box, for the retentivity of spring element is absorbed by brush box itself.There is no power to be directed to
In substrate.Brush box including Spring holder and spring element forms independent structural assemblies, structural assemblies setting
For being coupled with substrate.
It does not need brush box and is implemented as conduction.Brush with substrate conducting is connect by twisted wire.Therefore, brush box can
To be made from a material that be electrically non-conductive, especially be made of plastics.This have the advantages that entire earthing contact its manufacture view more
It is easy and also more advantageous.Brush box especially can be used as moulding and manufacture at low cost.Another advantage is some plastics
Good slip property, this is optimal for guidance of the brush in brush box again.
In order to which protective grounding contact is from mechanical load (such as stone impact), earthing contact preferably has lid, which protects
Protector has the brush of electric terminal, contact and twisted wire.Here, the lid can with force closure and/or form locking for example by means of
Screw is helped to be fixed on substrate.
Detailed description of the invention
Next the present invention is elaborated by each embodiment shown in schematic figures.Wherein:
Fig. 1 shows the side view for the brush carrier being known from the state of the art；
Fig. 2 shows the top views according to the brush carrier of Fig. 1；
Fig. 3 and Fig. 4 shows the perspective view of the earthing contact with lid according to the invention；
Fig. 5 shows the top view of the earthing contact according to the invention not covered；
Fig. 6 shows the axial section of the earthing contact according to the present invention with lid according to Fig. 5；
Fig. 7 shows the sectional view of the earthing contact according to the present invention with lid according to Fig. 5；
Fig. 8 shows the top view of the earthing contact according to the invention with multiple brush box and brush, and
Fig. 9 shows the sectional view of the earthing contact according to the invention according to Fig. 8.
Specific embodiment
Attached Fig. 1 and 2 shows brush carrier 2, as it is known from the state of the art.Brush carrier 2 has substrate 3 and brush box 4.Base
Plate 3 and brush box 4 are integrally and material consistently constructs.Shown brush box 4 is for accommodating electricity not shown further
Brush.
The perspective view of earthing contact 1 according to the invention is shown respectively in Fig. 3 and Fig. 4.Earthing contact 1 has substrate 3, brush
Box 4 and brush 6.Substrate 3 and brush box 4 are not one-piece constructions according to the present invention.Substrate 3 has brush box receptacle 5, electricity
Brush box 4 is inserted into the brush box receptacle.Here, the outer profile of brush box 4 corresponds to the brush box receptacle in substrate 3
5 profile, so that it is guaranteed that precise match of the brush box 4 in the brush box receptacle 5 of substrate 3.Region above substrate 3
It is protected by lid 7, the lid is fixed on the substrate 3 by screw.
Fig. 3 is shown, and brush 6 is stretched out from brush box 4 with an end.One end of brush 6 with it is unshowned
Component (slip ring) contact, to export electric current via the component.Fig. 4 shows the bottom plate of electrical isolation on the downside of substrate 3
16, which, which has, is arranged in the intermediate recess portion for brush box 4.
Fig. 5 illustrates the earthing contact according to the invention 1 of Fig. 3 and Fig. 4 with not with cover 7 vertical view.Substrate 3 has rectangle
Shape.In the brush box receptacle 5 of substrate 3 being provided centrally with for receiving brush box 4.Brush 6 is arranged in brush box 4
In.Electrical contact device 8 in the form of flexible strands is connected on the substrate 3 of earthing contact 1 and in base by two interfaces 9
Conductive connection is established between plate 3 and brush 6.In this embodiment, device 8 (twisted wire) is contacted there are two the tools of brush 6,
In, cable lug 9 is fixed on the substrate 3 using screw.It is provided on the corresponding opposite end of substrate 3 for tubular type
The receptacle of cable lug 10, the pipe type cable connector lug are equally fixed on the substrate 3 by screw.By not further
The input lead shown, electric current are conveyed to substrate 3 for continuing to convey via the pipe type cable connector lug 10 tightened.
Fig. 6 is section of the edge according to the line A-A of Fig. 5.It is different from Fig. 5, earthing contact 1 is closed using lid 7, wherein lid 7 hides
The big region of lid contact device 8, brush 6 and substrate 3.Brush box 4 is completely through brush box receptacle 5.Brush box 4 by
Clamping tongue 11, which clamps, to be kept on the substrate 3 (Fig. 6 and Fig. 7).Clamping tongue 11 has hook 17 on its free end 12, these
Hook acts on the upside of substrate 3.The upside of substrate 3 is that side for being fixed with lid 7.The downside of substrate 3 be substrate 3 with it is described
That opposite side of upside.Term " upside " and " downside " in other words "up" and "down" not for the installation site of earthing contact 1
Form limitation.
There is brush box 4 supporting surface 13 to be used to support on the downside of substrate 3.The supporting surface substantially by protruding portion or
Say the recess portion composition in brush box 4, the hook 17 of recess portion and clamping tongue 11 is formed together for receiving base the protruding portion in other words
The form locking of plate 3 connects (Fig. 7).
Fig. 7 shows another sectional view according to Fig. 5 earthing contact 1 with lid 7.Fig. 7 is shown for receiving spring element
The Spring holder 14 of part 15.The Spring holder 14 is connect with 4 form locking of brush box.Here, Spring holder 14 and bullet
Spring element 15 and with brush box 4 together run through brush box receptacle 5.Spring element 15 is pressed on brush 6 from upside
Wind spring item.Under running conditions, an end of brush 6 sticks on the component of unshowned rotation, so that brush 6 is ground
Damage.Brush 6 is movably supported in brush box 4, wherein brush 6 is pressed against the rotation by the power that spring element applies
Component on.
Fig. 8 shows the top view of the earthing contact 1 according to the invention with multiple brush box 4 and brush 6.Substrate 3 has
There is the substantially circular shape of pan-shaped in a top view in other words, this is attributed to the interface for electric current supply.Substrate 3
There are three brush box receptacles 5 for tool.Two brush box receptacles 5 are opposite, wherein third brush box receptacle 5 is arranged preceding
The side of two brush box receptacles 5.In this embodiment, brush box 4 also runs through the brush box of substrate 3 as individual component
It receptacle 5 and with the substrate form locking and is clampingly connect by clamping tongue 11.In three brush box 4 respectively together
It is provided with brush 6, the brush passes through the contact device 8 and is connected on substrate 3 by interface 9.
Fig. 9 shows the section B-B of Fig. 8.The spring element 15 that Fig. 9 is shown with wind spring strips, the wind spring item
Corresponding brush 6 is expressed on relatively-movable component 18 (slip ring) to transmit for electric current.Fig. 9 also shows that ground connection touching
Point 1 runs through holding meanss 19 with its brush box 4.Holding meanss 19 are arranged essentially parallel to the extension of substrate 3.
Appended drawing reference
1 earthing contact
2 brush carriers
3 substrates
4 brush box
5 brush box receptacles
6 brushes
7 lids
8 contact devices
9 cable lugs
10 pipe type cable connector lugs
11 clamping tongues
12 11 free end
13 4 supporting surface
14 Spring holders
15 spring elements
16 bottom plates
17 hooks
18 components
19 holding meanss
F spring force
Claims (10)
1. a kind of for making the earthing contact turned to current controlledly, which includes brush carrier (2), which includes
Substrate (3) and at least one be used to accommodate the brush box (4) of brush (6), and at least one described brush box (4) and the base
Connect to plate (3) form locking.
2. earthing contact according to claim 1, which is characterized in that the brush box (4) has clamping tongue (11), electricity
Brush box (4) is clamped by the clamping tongue (11) and is maintained on substrate (3).
3. earthing contact according to claim 2, which is characterized in that the clamping tongue (11) is in its free end (12)
Upper to have hook (17), these hooks act on behind the edge of the brush box receptacle (5) in substrate (3).
4. earthing contact according to claim 2 or 3, which is characterized in that the clamping tongue (11) is arranged in brush box
(4) at least three sides.
5. earthing contact according to any one of claim 1 to 4, which is characterized in that the brush box (4) has support
Face (13), to be supported on the downside of substrate (3).
6. earthing contact according to any one of claim 3 to 5, which is characterized in that the brush box (4) completely through
Brush box receptacle (5).
7. earthing contact according to any one of claim 1 to 6, which is characterized in that the substrate (3) has multiple electricity
Brush box receptacle (5).
8. earthing contact according to any one of claim 1 to 7, which is characterized in that be provided with bullet in brush box (4)
Spring element (15), so that spring force (F) to be applied on the brush (6) in brush box (4) along the longitudinal direction of brush box (4).
9. earthing contact according to any one of claim 1 to 8, which is characterized in that the spring element (15) is fixed
In brush box (4).
10. earthing contact according to any one of claim 1 to 9, which is characterized in that the brush box (4) is by plastics
It is made.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102017113911.7 | 2017-06-23 | ||
| DE102017113911.7A DE102017113911B4 (en) | 2017-06-23 | 2017-06-23 | ground contact |
| PCT/DE2018/100374 WO2018233749A1 (en) | 2017-06-23 | 2018-04-19 | Earthing contact |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110462945A true CN110462945A (en) | 2019-11-15 |
| CN110462945B CN110462945B (en) | 2022-08-09 |
Family
ID=62116157
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201880021331.XA Active CN110462945B (en) | 2017-06-23 | 2018-04-19 | Grounding contact |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP3642910B1 (en) |
| CN (1) | CN110462945B (en) |
| DE (1) | DE102017113911B4 (en) |
| WO (1) | WO2018233749A1 (en) |
Citations (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1122625B (en) * | 1956-01-02 | 1962-01-25 | Hollandse Signaalapparaten Bv | Electrical apparatus with a brush to be applied by a compression spring to a commutator or slip ring and a brush holder |
| US3431446A (en) * | 1967-07-25 | 1969-03-04 | Rae Motor Corp | Electric motor brush holder,cap and spring |
| DE2541457A1 (en) * | 1974-09-13 | 1976-04-08 | Itw Fastex Italia Spa | BRUSH HOLDER FOR DC MOTORS |
| EP0292366A1 (en) * | 1987-05-21 | 1988-11-23 | Ecia - Equipements Et Composants Pour L'industrie Automobile | Brush holder plate, particularly for an electric engine |
| US4855631A (en) * | 1987-05-29 | 1989-08-08 | Mitsuba Electric Manufacturing Co., Ltd. | Brush holding device |
| US4876475A (en) * | 1988-04-28 | 1989-10-24 | Sunbeam Corporation | Brush holder with plastic cup to retain biasing spring |
| EP0397973A2 (en) * | 1989-05-16 | 1990-11-22 | Asmo Co., Ltd. | Brush holding structure for motor |
| EP0528356A1 (en) * | 1991-08-19 | 1993-02-24 | Schunk Metall und Kunststoff GmbH | Holding device for brushes used on railway vehicles as contact for back current and/or earthing and method for producing such a holding device |
| CN1128088A (en) * | 1994-04-28 | 1996-07-31 | 西门子电气有限公司 | Brush holder assembly |
| EP0855786A2 (en) * | 1995-01-27 | 1998-07-29 | Mitsuba Corporation | Brush holder device and method of molding same |
| DE19934558A1 (en) * | 1999-07-22 | 2001-02-01 | Temic Auto Electr Motors Gmbh | Carbon-brush holder for electric commutator motor, especially small electric motors for motor vehicles, has brush connector wire passed though opening in center part of coiled-strip spring and then fixed on brush head surface |
| EP1136340A2 (en) * | 2000-03-20 | 2001-09-26 | Schunk Metall und Kunststoff GmbH | Earthing contact |
| DE10012739A1 (en) * | 2000-03-16 | 2001-09-27 | Schunk Metall & Kunststoff | Earthing contact for transmission of currents between fixed vehicle parts of electric driven vehicle such as electric locomotive or driven and travel vehicle with its rotating wheel axle including at least one contact element |
| CN1426623A (en) * | 2001-03-17 | 2003-06-25 | 罗伯特·博施有限公司 | Servo actuating drive and method for assembling servo actuating drive |
| CN1213529C (en) * | 1999-12-20 | 2005-08-03 | 瓦莱奥电机设备公司 | Electric motor enclosure of ignitor including annular soft pad with seal and fixed center, and ignitor equipped therewith |
| US20080197746A1 (en) * | 2007-02-21 | 2008-08-21 | Denso Corporation | Vehicle alternator with improved brush device |
| CN201941802U (en) * | 2010-12-27 | 2011-08-24 | 南车青岛四方机车车辆股份有限公司 | Axle hung grounding device of railway vehicle |
| CN203119260U (en) * | 2012-12-07 | 2013-08-07 | 谢佐凌 | Carbon brush holder |
| CN103889812A (en) * | 2011-08-26 | 2014-06-25 | Skf公司 | Assembly with rotating parts with conductive fluid for earth return |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS594819U (en) | 1982-07-01 | 1984-01-12 | 日本サ−ボ株式会社 | bearing |
| DE102004004745A1 (en) * | 2004-01-30 | 2005-08-18 | Robert Bosch Gmbh | Brush holder for an electrical machine such as a motor vehicle generator has four holders for carbon brushes switched as pairs in parallel |
-
2017
- 2017-06-23 DE DE102017113911.7A patent/DE102017113911B4/en active Active
-
2018
- 2018-04-19 EP EP18722385.4A patent/EP3642910B1/en active Active
- 2018-04-19 WO PCT/DE2018/100374 patent/WO2018233749A1/en active Application Filing
- 2018-04-19 CN CN201880021331.XA patent/CN110462945B/en active Active
Patent Citations (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1122625B (en) * | 1956-01-02 | 1962-01-25 | Hollandse Signaalapparaten Bv | Electrical apparatus with a brush to be applied by a compression spring to a commutator or slip ring and a brush holder |
| US3431446A (en) * | 1967-07-25 | 1969-03-04 | Rae Motor Corp | Electric motor brush holder,cap and spring |
| DE2541457A1 (en) * | 1974-09-13 | 1976-04-08 | Itw Fastex Italia Spa | BRUSH HOLDER FOR DC MOTORS |
| EP0292366A1 (en) * | 1987-05-21 | 1988-11-23 | Ecia - Equipements Et Composants Pour L'industrie Automobile | Brush holder plate, particularly for an electric engine |
| US4855631A (en) * | 1987-05-29 | 1989-08-08 | Mitsuba Electric Manufacturing Co., Ltd. | Brush holding device |
| US4876475A (en) * | 1988-04-28 | 1989-10-24 | Sunbeam Corporation | Brush holder with plastic cup to retain biasing spring |
| EP0397973A2 (en) * | 1989-05-16 | 1990-11-22 | Asmo Co., Ltd. | Brush holding structure for motor |
| EP0528356A1 (en) * | 1991-08-19 | 1993-02-24 | Schunk Metall und Kunststoff GmbH | Holding device for brushes used on railway vehicles as contact for back current and/or earthing and method for producing such a holding device |
| CN1128088A (en) * | 1994-04-28 | 1996-07-31 | 西门子电气有限公司 | Brush holder assembly |
| EP0855786A2 (en) * | 1995-01-27 | 1998-07-29 | Mitsuba Corporation | Brush holder device and method of molding same |
| DE19934558A1 (en) * | 1999-07-22 | 2001-02-01 | Temic Auto Electr Motors Gmbh | Carbon-brush holder for electric commutator motor, especially small electric motors for motor vehicles, has brush connector wire passed though opening in center part of coiled-strip spring and then fixed on brush head surface |
| CN1213529C (en) * | 1999-12-20 | 2005-08-03 | 瓦莱奥电机设备公司 | Electric motor enclosure of ignitor including annular soft pad with seal and fixed center, and ignitor equipped therewith |
| DE10012739A1 (en) * | 2000-03-16 | 2001-09-27 | Schunk Metall & Kunststoff | Earthing contact for transmission of currents between fixed vehicle parts of electric driven vehicle such as electric locomotive or driven and travel vehicle with its rotating wheel axle including at least one contact element |
| EP1136340A2 (en) * | 2000-03-20 | 2001-09-26 | Schunk Metall und Kunststoff GmbH | Earthing contact |
| CN1426623A (en) * | 2001-03-17 | 2003-06-25 | 罗伯特·博施有限公司 | Servo actuating drive and method for assembling servo actuating drive |
| US20080197746A1 (en) * | 2007-02-21 | 2008-08-21 | Denso Corporation | Vehicle alternator with improved brush device |
| CN201941802U (en) * | 2010-12-27 | 2011-08-24 | 南车青岛四方机车车辆股份有限公司 | Axle hung grounding device of railway vehicle |
| CN103889812A (en) * | 2011-08-26 | 2014-06-25 | Skf公司 | Assembly with rotating parts with conductive fluid for earth return |
| CN203119260U (en) * | 2012-12-07 | 2013-08-07 | 谢佐凌 | Carbon brush holder |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2018233749A1 (en) | 2018-12-27 |
| DE102017113911A1 (en) | 2018-12-27 |
| DE102017113911B4 (en) | 2022-03-24 |
| EP3642910C0 (en) | 2023-11-08 |
| CN110462945B (en) | 2022-08-09 |
| EP3642910B1 (en) | 2023-11-08 |
| EP3642910A1 (en) | 2020-04-29 |
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