Classifications

• • H—ELECTRICITY
  • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • H02K—DYNAMO-ELECTRIC MACHINES
  • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
  • H02K7/10—Structural association with clutches, brakes, gears, pulleys or mechanical starters
  • H02K7/116—Structural association with clutches, brakes, gears, pulleys or mechanical starters with gears
  • H02K7/1163—Structural association with clutches, brakes, gears, pulleys or mechanical starters with gears where at least two gears have non-parallel axes without having orbital motion
  • H02K7/1166—Structural association with clutches, brakes, gears, pulleys or mechanical starters with gears where at least two gears have non-parallel axes without having orbital motion comprising worm and worm-wheel
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B60—VEHICLES IN GENERAL
  • B60S—SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
  • B60S1/00—Cleaning of vehicles
  • B60S1/02—Cleaning windscreens, windows or optical devices
  • B60S1/04—Wipers or the like, e.g. scrapers
  • B60S1/06—Wipers or the like, e.g. scrapers characterised by the drive
  • B60S1/08—Wipers or the like, e.g. scrapers characterised by the drive electrically driven
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B60—VEHICLES IN GENERAL
  • B60S—SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
  • B60S1/00—Cleaning of vehicles
  • B60S1/02—Cleaning windscreens, windows or optical devices
  • B60S1/04—Wipers or the like, e.g. scrapers
  • B60S1/06—Wipers or the like, e.g. scrapers characterised by the drive
  • B60S1/16—Means for transmitting drive
  • B60S1/166—Means for transmitting drive characterised by the combination of a motor-reduction unit and a mechanism for converting rotary into oscillatory movement
• • H—ELECTRICITY
  • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • H02K—DYNAMO-ELECTRIC MACHINES
  • H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
  • H02K11/20—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection for measuring, monitoring, testing, protecting or switching
  • H02K11/21—Devices for sensing speed or position, or actuated thereby
  • H02K11/215—Magnetic effect devices, e.g. Hall-effect or magneto-resistive elements
• • H—ELECTRICITY
  • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • H02K—DYNAMO-ELECTRIC MACHINES
  • H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
  • H02K11/30—Structural association with control circuits or drive circuits
  • H02K11/38—Control circuits or drive circuits associated with geared commutator motors of the worm-and-wheel type
• • H—ELECTRICITY
  • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • H02K—DYNAMO-ELECTRIC MACHINES
  • H02K5/00—Casings; Enclosures; Supports
  • H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
• • H—ELECTRICITY
  • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • H02K—DYNAMO-ELECTRIC MACHINES
  • H02K5/00—Casings; Enclosures; Supports
  • H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
  • H02K5/18—Casings or enclosures characterised by the shape, form or construction thereof with ribs or fins for improving heat transfer
• • H—ELECTRICITY
  • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • H02K—DYNAMO-ELECTRIC MACHINES
  • H02K5/00—Casings; Enclosures; Supports
  • H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
  • H02K5/10—Casings or enclosures characterised by the shape, form or construction thereof with arrangements for protection from ingress, e.g. water or fingers

Definitions

• the invention relates to a motor-gear unit, in particular a wiper motor for wiper devices in vehicles, according to the preamble of claim 1.
• a windshield wiper device for a motor vehicle which is driven by a wiper motor having as drive unit an electric motor whose armature is connected via a transmission with a drive shaft for driving the windscreen wiper.
• the electric motor and the transmission together form the wiper motor and are arranged in a common housing.
• the electric motor is controlled by signals of a control or control unit in response to current external conditions or control commands. About the signals of the control or control unit, the energization of the electric motor is set in the desired manner.
• the invention has for its object to provide a compact motor-gear unit, which can be adapted with little effort to different purposes. This object is achieved with the features of claim 1.
• the dependent claims indicate expedient developments.
• the motor-gear unit according to the invention which is in particular a wiper motor for wiping devices in vehicles, has a housing composed of two housing shells, wherein the control unit is designed as a separate component, which on the outside of the housing to attach.
• the control unit may optionally have a plug connection. This design opens the possibility to adapt the motor-gear unit with little effort to different requirements.
• different control or control units with different customer plugs can be mounted on the outside of the housing.
• two brushes may be provided as the standard electric motor, or a donor magnet and three brushes may be provided as a mechatronic electric motor in a second variant.
• the housing interior adapted to the particular application electric drive motors and / or gear units, the dimensions of the housing shells can be maintained.
• different sized components can be accommodated inside the housing. Overall, this improves the use of identical parts and simplifies assembly and disassembly into different vehicle types.
• the housing here represents a universal shell or a package of uniform size and design, which serves to accommodate different sizes of armature, magnets and yoke rings of the electric drive motor and the components of the transmission.
• Another advantage is that the mechanical part of the engine-transmission unit is completely inside the housing and the Electronic part is located completely outside of the housing, making it possible for the housing interior a lower protection class (eg. IP44) can achieve than for the electronics (IP6k7k).
• a lower protection class eg. IP44
• IP6k7k the electronics
• the two housing parts are expediently mirror-symmetrical to each other, so that the control or control unit can be positioned in a mirror-symmetrical arrangement on one of the two housing shells.
• Pre-stamped insertion openings for the electrical contact between the control unit and electrical conductors in the interior of the housing, which lead to the electric drive motor, can be introduced into the shells. Depending on the installation position and engine variant, the pre-embossed openings are opened.
• the electrical contact is designed in particular as brushes, which bear against a circulating with the armature commutator inside the housing.
• a recess for a drive shaft which is driven by the transmission and over which, for example, the wiper linkage is actuated, can be introduced into each housing shell.
• the recess is advantageously in a dome, which rises above the top of the respective housing shell and at the same time causes a centering of aufdin control or control unit.
• control or control unit On a housing shell and for better connection with the housing shell, it may be advantageous to form on the outside of the housing shell a projecting boundary edge, which limits the control unit and encloses.
• control unit can be connected via other form-fitting, frictional or cohesive connection measures with the housing.
• the housing shells are expediently made of sheet steel and are produced in particular by thermoforming.
• an embodiment of the housing shells made of a magnetic or magnetizable material in order to support the magnetic inference in the electric drive motor, so that optionally can be dispensed with a separate return ring of the drive motor.
• the execution of the housing shells made of metal also allows the
• impressions of depressions for example, in order to adjust the geometry of the housing shells so that components inside the housing and possibly also on the outside of the housing are supported in an improved manner.
• housing section which accommodates the gear unit with a smaller thickness than the housing section which receives the drive motor. It is particularly expedient that the gearbox housing section including the control unit has a total thickness which is not greater than the total thickness of the drive motor housing section.
• FIG. 1 is a side view of a motor-gear unit, comprising a housing consisting of two housing shells, in which an electric drive motor and a gear unit is received to drive a drive shaft,
• FIG. 3 shows the motor-gear unit in a side view with a mounted on a housing shell control unit
• FIG. 6 shows a housing upper shell in plan view without control or control unit, with closed, pre-embossed recesses,
• Fig. 7 shows a housing lower shell in plan view without control or control unit, with open, pre-embossed
• FIG. 9 is a perspective view of the housing without patch control unit, wherein in the outer side of the upper housing shell a depression is impressed, which serves for ball bearing clearance adjustment, 10 shows the motor-gear unit of FIG. 9 in a partially cutaway state, FIG.
• 11 is a plan view of the motor-gear unit with remote upper housing shell
• Fig. 13 is a perspective view of an engine-transmission unit in an alternative embodiment, in which the
• Control unit is integrated into the housing interior
• FIG. 14 shows a further motor / gearbox unit with regulating or control unit integrated into the housing, the housing part accommodating the electric drive motor being designed as a separate pole pot.
• the motor / gearbox unit 1 which is, for example, a wiper motor for a wiper device in a motor vehicle, has a housing 2 which has an electric drive motor in a housing section 2 a in a subsequent further housing section 2b receives a transmission.
• the housing 2 is designed in two parts and comprises two housing shells 3 and 4, which are mirror-symmetrical to each other.
• the housing shells are preferably produced by deep drawing and consist of metal, in particular of a magnetizable or magetized metal, preferably of sheet steel.
• cooling fins 6 are impressed into the housing shells 3 and 4, which are intended to effect improved cooling of the electric drive motor.
• the elongated cooling fins 6 are uniform over the circumference of the housing portion 2a distributed and extend in the axial direction.
• the cooling fins are formed as radially outwardly embossed ribs.
• At the Dom 7 is mounted on the top of a pressure compensation membrane 21, which allows the control unit and a higher protection class
• the gear housing portion 2b is approximately disc-shaped and has an axis which crosses the axis of the motor housing portion 2a.
• the gear housing portion 2b has a significantly smaller thickness, measured in the axial direction of the gear housing portion, than the diameter of the approximately cylindrical motor housing portion 2a.
• a central Dom 7 is introduced in the region of the gear housing section 2b, which is integrally formed with the respective housing shell and rises above the outside of the respective housing shell. Dom 7 limits a recess or a passage 8, the or for receiving and adjustable storage of arrival or
• Output shaft 5 is used, which is driven by the transmission inside the housing.
• the Dom 7 is cylindrical or possibly conical.
• the pressure compensation membrane 21 covers the recess 8 in the dome 7 in the event that the drive shaft 5 is guided through the dome in the opposite housing shell.
• a control or control unit 9 is placed on the upper housing shell 3 of the housing 2, in the region of the gear housing section 2b.
• the upper side of the gearbox housing section 2b is essentially covered by the control unit 9.
• the thickness of the control or control unit 9 and the total thickness of the gear housing portion 2b are dimensioned so that the outer diameter of the substantially cylindrical motor housing portion 2a is not surmounted.
• the upper housing shell 3 is shown in plan view, wherein Fig. 5 shows the housing shell with control unit and Fig. 6, the housing shell without the control unit.
• FIGS. 7 and 8 correspond to FIGS. 5 to 6, but show the lower housing shell 4.
• the gear housing portion 2b is bordered by a boundary edge 12 which rises above the outside of the respective housing shell 3 or 4 and in the mounted state, the control unit 9 circumferentially limited.
• Boundary edge 12 extends over the circumference of the gearbox housing portion 2b to the adjacent motor housing section 2a.
• indentations 10 are introduced into the wall, which can be broken with little effort and brush recesses 11 form, which are provided for the brush holder, via which the electrical contact is made to the drive motor in the housing.
• the impressions 10 are located in the brush carrier region of the housing shells 3 and 4.
• mechatronic control units two brush recesses 11 and three standard brushes recesses 11 are opened.
• FIGS. 9 and 10 show an introduced into the housing shell 3 indentation 13, for example, has the function of an additional support of a housed inside the housing component.
• the indentation can be introduced after the deep-drawing process for the production of the housing parts.
• Fig. 10 also shows the gear 14 in the gear housing portion 2b, which comprises a rotating with the armature of the drive motor armature shaft 15 which meshes with a gear 16 which is rotatably connected to the drive shaft 5 through which the drive movement on the mechanical wiper parts is transmitted.
• the input or output shaft 5 is guided in a two-part adjustable bearing bush 20.
• the engine-transmission unit 1 is shown with removed housing shell or in section.
• the electric drive motor 17 whose armature drives the armature shaft 15, which meshes with the gear 16 as part of the transmission 14.
• the free end face of the armature shaft 15 is in close proximity to the inner wall of the housing shell;
• the armature shaft may optionally be supported in this area, for example via an additional bearing.
• the drive motor 17 is encompassed by a return ring 18, which serves for the improved guidance and direction of magnetic field lines.
• Fig. 13 a further embodiment is shown, in which the two housing shells 3 and 4 of the housing 2 are not mirror-symmetrical, but different.
• the upper housing shell 3 is for receiving the rule or
• Control unit formed in the interior of the housing and accordingly has in the region of the gearbox housing portion 2b a greater thickness.
• the control unit is completely integrated into the housing interior.
• control unit is also integrated into the housing interior.
• the motor housing portion 2a is divided into two in the axial direction, wherein the transmission housing portion 2b adjacent part of the two housing shells 3 and 4 is formed, whereas the frontal portion is formed by a designed as a separate component pole housing 19, the electrical Drive motor receives.

Landscapes

• Engineering & Computer Science (AREA)
• Power Engineering (AREA)
• Mechanical Engineering (AREA)
• Microelectronics & Electronic Packaging (AREA)
• Physics & Mathematics (AREA)
• Thermal Sciences (AREA)
• Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)

Priority Applications (3)

Applications Claiming Priority (2)

Publications (1)

Family

ID=40940233

Family Applications (1)

Country Status (5)

Cited By (3)

Families Citing this family (4)

Citations (6)

Family Cites Families (1)

• 2008
  • 2008-06-06 DE DE102008002251A patent/DE102008002251A1/de not_active Ceased
• 2009
  • 2009-05-08 CN CN2009801209295A patent/CN102056776A/zh active Pending
  • 2009-05-08 EP EP09757380A patent/EP2288522A1/de not_active Withdrawn
  • 2009-05-08 WO PCT/EP2009/055624 patent/WO2009146997A1/de active Application Filing
  • 2009-05-08 BR BRPI0912049A patent/BRPI0912049A2/pt not_active IP Right Cessation

Patent Citations (6)

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