WO2013076815A1 - ワイパモータ - Google Patents
ワイパモータ Download PDFInfo
- Publication number
- WO2013076815A1 WO2013076815A1 PCT/JP2011/076927 JP2011076927W WO2013076815A1 WO 2013076815 A1 WO2013076815 A1 WO 2013076815A1 JP 2011076927 W JP2011076927 W JP 2011076927W WO 2013076815 A1 WO2013076815 A1 WO 2013076815A1
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- WIPO (PCT)
- Prior art keywords
- armature
- gear housing
- magnet
- output shaft
- reduction mechanism
- Prior art date
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Classifications
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- 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
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- 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
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- 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
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- 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
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- 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
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K23/00—DC commutator motors or generators having mechanical commutator; Universal AC/DC commutator motors
- H02K23/66—Structural association with auxiliary electric devices influencing the characteristic of, or controlling, the machine, e.g. with impedances or switches
Definitions
- This invention relates to a motor with a speed reduction mechanism.
- a motor with a speed reduction mechanism as a drive source for swinging a wiper arm is used in a wiper device mounted on a vehicle (for example, see Patent Document 1).
- This motor with a speed reduction mechanism has a motor section having a brush and an armature, and a speed reduction mechanism section that decelerates the rotation of the armature of the motor section.
- the deceleration mechanism unit is provided with a control device that controls the rotation of the armature, and the wiping position and wiping speed of the wiper arm are controlled by the control device.
- the present invention has been made in view of the above-described circumstances, and provides a wiper motor that not only can be reduced in size and weight, but also can improve wiping accuracy.
- a yoke a magnet composed of at least four poles arranged on the inner peripheral surface of the yoke and alternately arranged with different magnetic poles, and one end rotatably supported on the bottom of the yoke.
- a reduction mechanism having two brushes that are in sliding contact with the commutator and arranged 90 degrees apart in the rotation direction of the armature, and an output shaft that meshes with a worm formed on the armature shaft and transmits the rotation of the armature
- a speed reduction mechanism accommodating portion that is coupled to the yoke and accommodates the speed reduction mechanism portion.
- a gear housing formed in a bottomed opening shape, a gear housing cover covering the opening of the gear housing, a magnet attached to the output shaft, an absolute position detection sensor disposed opposite to the magnet, The absolute position detection sensor is mounted and disposed between the gear housing and the gear housing cover, and has a control board for controlling the rotation of the armature.
- the present invention also includes a case, a magnet having at least four poles arranged on the inner peripheral surface of the case and having different magnetic poles alternately arranged, and an armature shaft having one end rotatably supported by the case.
- a commutator fixed to the armature shaft; a core fixed to the armature shaft and wound with a winding; and an armature rotatably disposed inside the magnet; and a sliding contact with the commutator.
- a reduction gear having two brushes arranged 90 degrees apart in the rotation direction of the armature, and an output shaft that is received in the case and meshes with a worm formed on the armature shaft to transmit the rotation of the armature A mechanism, a magnet attached to the output shaft, and an insulator disposed opposite the magnet.
- Position detection sensor wherein the absolute position detection sensor is mounted accommodated in the casing, and having a control board for controlling the rotation of said armature.
- the output shaft is formed with a fixing portion to which the swing member is directly fixed.
- the present invention is characterized in that a fixed portion to which the swing member is directly fixed is formed on the output shaft.
- the angle sensor is applied to a wiper motor that can rotate forward and backward using a four-pole magnet and two brushes, not only can the size and weight be reduced, but also the wiper wiping accuracy can be improved. Can do.
- FIG. 2 is a partial cross-sectional development view of the motor with a speed reduction mechanism in FIG. 1. It is a perspective view of a gear housing cover. It is a winding development view of an armature. It is the figure except the motor part of the motor with a reduction mechanism. It is the figure which removed the brush holder unit from FIG. 4A. It is the perspective view seen from the brush terminal connection part side of a brush holder unit. It is the perspective view seen from the brush holder side of a brush holder unit.
- a wiper motor 1 as a motor with a speed reduction mechanism applied to the present invention includes a motor unit 10 that rotates by energization, and an output shaft that decelerates the rotational operation of the motor unit 10 It consists of a speed reduction mechanism 25 that transmits to 24.
- the motor unit 10 is formed in a bottomed cylindrical shape, and a magnet 11 having at least four poles is fixed on its inner peripheral surface, A gear housing 26 is fixed, and a yoke (first case) 13 to which the bearing portion 12 is fixed is provided on the other side.
- the motor unit 10 is fixed to the armature shaft 14 having one end rotatably supported by a bearing unit 12 and having a worm portion 14a formed at the tip thereof.
- the commutator 15 is rotatably arranged inside the plurality of magnets 11.
- Armature 18 is provided.
- the motor unit 10 includes a plurality of brushes 20 and 20 that slide on the commutator 15 by the rotation of the armature 18, and a brush holder 21 that holds the brushes 20 and 20. , 21 and a brush holder unit 19.
- the speed reduction mechanism section 25 includes a worm wheel section 25a that decelerates the rotation of the motor section 10, and a gear housing (second case) 26 that includes a bottomed speed reduction mechanism housing section 26f that houses the worm wheel section 25a. ing. In addition, a gear housing cover 29 that covers the opening of the speed reduction mechanism housing portion 26f and a brush holder housing portion 26d that houses the brush holder unit 19 are provided.
- the worm wheel portion 25 a includes an output shaft 24 that decelerates and transmits the rotation of the armature 18 of the motor portion 10, and the brush holder housing portion 26 d is formed in a cylindrical shape and is formed integrally with the gear housing 26. Has been.
- the gear housing 26 and the gear housing cover (third case) 29 are fixed to each other by a plurality of screws 40.
- a yoke motor (first case) 13, a gear housing (second case) 26, and a gear housing cover (third case) 29 are mechanically coupled to form a wiper motor having an integral case. Can do.
- the worm wheel portion 25a provided in the speed reduction mechanism portion 25 is formed in a disc shape with a resin such as polyacetal, and a meshing portion 25b that meshes with the worm portion 14a of the armature shaft 14 is formed on the outer peripheral surface.
- An output shaft 24 is integrally attached to the rotation center of the worm wheel portion 25a.
- a magnet 25c having a cylindrical shape (button shape) is attached to the base end of the output shaft 24 of the worm wheel portion 25a so that the rotation axis of the output shaft 24 and the rotation axis thereof coincide with each other.
- the magnet 25c is magnetized so that it has an N pole in the range of 180 degrees in the circumferential direction and an S pole in the range of 180 degrees in the other circumferential directions around the rotation axis.
- a Hall IC 29d for absolute position detection is provided on a control board 29c described later.
- the Hall IC 29d for absolute position detection detects a change in the magnetic field generated from the magnet 25c by the rotation of the output shaft 24, and converts it into angle data. Then, based on a signal corresponding to a change in the magnetic field generated from the magnet 25c generated by the absolute position detecting Hall IC 29d, the lower reverse position and stop position of the wiper device attached to the tip of the output shaft 24 of the motor with a speed reduction mechanism. A current position of a wiper arm on a windshield (not shown) is calculated from an angle such as a specific position.
- a magnet 25c is integrally fixed to the base end of the output shaft, and a swinging member 43 such as a wiper arm or a motor crank is directly and non-rotatable at one end of the output shaft by a fixing member 44 such as a nut. Further, an intermediate portion of the output shaft 24 is supported by an output shaft support portion 26g formed in a gear housing (second case) 26 and extending in the axial direction.
- the wiper motor 1 can be reduced in size by using a 4-pole wiper motor, the inertia of the wiper motor 1 can be reduced. Thereby, since the loss as the wiper motor 1 such as the rotation balance of the armature 18 can be reduced, the control response of the wiper motor 1 and the accuracy of the wiping control can be improved.
- the axial length of the armature shaft 14 can be shortened, and the wiper motor 1 can be downsized.
- the yoke 13 is integrally formed from a plate material into a bottomed cylindrical shape by pressing, and the yoke 13 has a magnet fixing portion 13a in which a plurality of magnets 11 are fixed on its inner peripheral surface, and a magnet fixing.
- a pair of curved portions 13b and a pair of flat portions 13c are alternately connected to the portion 13a, and a yoke connecting portion 13d having an oval shape as viewed from the axial direction is formed.
- a flange-shaped fixing portion 13e is formed on the end surface of the yoke 13, and a gear housing 26 described later is fixed to the flange-shaped fixing portion 13e.
- the yoke connecting portion 13d is formed such that the arc diameter gradually increases from the magnet fixing portion 13a toward the yoke end surface.
- four magnets 11 are fixed by an adhesive or the like, and two N poles and S poles, which are different magnetic poles, alternately, that is, the same poles face each other.
- One end of the armature shaft 14 is rotatably supported by the bearing portion 12 of the yoke 13 and is disposed inside the four magnets 11.
- the other end of the armature shaft 14 is formed with a worm portion 14a formed in a spiral shape by rolling.
- the commutator 15 includes an insulating cylindrical portion 15a formed in a cylindrical shape by an insulating material such as a thermosetting resin, and a predetermined interval in the circumferential direction on the outer peripheral surface of the insulating cylindrical portion 15a. And a plurality of segment portions 15b formed of a conductive member such as copper.
- the commutator 15 is fixed to the armature shaft 14 by fitting the inner peripheral surface of the insulating cylindrical portion 15 a and the outer peripheral surface of the armature shaft 14.
- a coil connection portion 15c is formed at one end on the outer peripheral surface of each segment portion 15b, and a coil 17a is connected to each coil connection portion 15c.
- the armature core 16 is formed in a cylindrical shape by laminating a predetermined number of core substrates punched by pressing, and includes a shaft fixing portion to which the armature shaft 14 is fixed, and 18 pieces extending radially from the shaft fixing portion. And a teeth section.
- a coil 17a made of copper wire is wound around the armature core 16.
- One end of the coil 17a is fixed to the coil connecting portion 15c of the segment portion 15b, and the coil 17a is wound a plurality of times by overlapping winding between predetermined teeth portions.
- the other end of the coil 17a is fixed to the coil connection portion 15c of the different segment portion 15b.
- a connection line (current supply line) 17b is connected to the segment part 15b facing the segment part 15b.
- the coil 17a is wound around the armature core 16 by repeating the process of winding the coil 17a around each tooth portion.
- connection line current supply line
- the opposing segments are connected to each other by a connection line (current supply line) 17b to flow from the brush 20 to the segment part.
- the current also flows through the opposing segment portions via the connection line 17b.
- the brush holder unit 19 includes a base portion 19c formed in an oval shape in which a pair of curved portions 19a and a pair of flat surface portions 19b are alternately connected.
- the base portion 19c is formed with an opening portion 19c1 through which the armature shaft 14 passes, and a fixing opening portion 19c2 through which the screw 41 passes to fix the brush holder unit 19 and the gear housing 26.
- brush holders 21, 21 made of a metal material such as brass are fixed to the base portion 19 c, and the two brushes 20, 20 approach the commutator 15 in the brush holders 21, 21. It is arranged so that it can be separated. As shown in FIG. 4A and FIG. 5B, in the present invention, the two brushes 20, 20 are arranged approximately 90 degrees apart from the rotation axis O of the armature 18.
- the brush holder 21 is disposed in the vicinity of one of the pair of flat portions 19b of the base portion 19c. Then, the fixing claw 21a of the brush holder 21 is inserted into the brush holder fixing portion 19c3 formed on the base portion 19c, and the fixing claw 21a is bent to the back surface of the base portion 19c, whereby the brush holder 21 is fixed to the base portion 19c. Is done.
- the brush holder unit 19 includes a brush holder guide wall 19d and a brush terminal connection portion 19e.
- the brush holder guide wall 19d is formed in substantially the same shape as the outer shape (oval shape) of the base portion 19c, and the base portion 19c. It is arranged to extend at a right angle from.
- the brush terminal connection portion 19e protrudes from the base portion 19c in the direction opposite to the brush holder guide wall 19d and at a right angle to the base portion 19c.
- the brush terminal connection part 19e is arrange
- the choke coils 22 and 22 as noise prevention elements are attached to the base portion 19c, and one ends of the choke coils 22 and 22 and the brushes 20 and 20 are electrically connected via the pigtails 20a and 20a.
- a female brush terminal 23 is electrically connected to the other end of the choke coil 22, and the female brush terminal 23 is electrically connected to a male terminal 29 g provided on the gear housing cover 29.
- the tip of the female brush terminal 23 is accommodated in the brush terminal connection portion 19e and exposed from the brush terminal connection portion 19e so as to be electrically connected to the male terminal 29g of the gear housing cover 29.
- the brush holder guide wall 19d abuts against the inner wall 26d1 of the brush holder housing portion 26d, and the brush holder unit 19 is placed on the bottom portion 26d2 of the brush holder housing portion 26d. Guided. Then, the brush holder unit 19 and the gear housing 26 are fixed by a screw 41 penetrating through a fixing opening 19c2 formed in the base portion 19c.
- the gear housing 26 is formed by die casting using a metal material such as aluminum.
- the gear housing 26 is formed with a yoke fixing portion 26a.
- the yoke fixing portion 26a and the flange-like fixing portion 13e of the yoke 13 are brought into contact with each other, and the yoke 13 is attached to the gear housing 26 by a plurality of screws 42. It is attached.
- the yoke fixing portion 26a is formed in an oval shape in which a pair of curved portions 26b and a pair of flat surface portions 26c are alternately connected in accordance with the shape of the flange-shaped fixing portion 13e.
- a brush holder accommodating portion 26d is formed integrally with the yoke fixing portion 26a, and the brush holder unit 19 is accommodated in the brush holder accommodating portion 26d.
- a brush holder contact portion 26e that contacts the fixed claw 21a of the brush holder 21 is formed on the bottom portion 26d2 of the brush holder housing portion 26d so as to protrude from the bottom portion 26d2, and the heat generated from the brushes 20 and 20 It is transmitted from the fixed claw 21a of the holder 21 to the gear housing 26 through the brush holder contact portion 26e, and is radiated to the outside from the gear housing 26.
- the gear housing 26 is formed with a speed reduction mechanism housing portion 26f for housing the worm wheel portion 25a adjacent to the brush holder housing portion 26d.
- the gear housing 26 is formed with an output shaft support portion 26g for directly or indirectly supporting the output shaft 24 in a direction opposite to the opening of the speed reduction mechanism housing portion 26f.
- a cover connecting portion 26h is opened in the speed reduction mechanism accommodating portion 26f.
- the speed reduction mechanism accommodating portion 26f is started from the bottom surface of the gear housing cover 29.
- the two male terminals 29g provided so as to protrude toward the end are electrically connected to the female brush terminal 23 of the brush holder unit 19 disposed in the speed reduction mechanism accommodating portion 26f through the cover connecting portion 26h.
- the output shaft 24 that protrudes from the output shaft support portion 26g is fixed by an output shaft fixing portion (tea washer) 27.
- a wiper device fixing portion 24a is formed, in which a swinging member 43 such as a wiper arm or a motor crank is fixed directly and non-rotatably by a fixing member 44 such as a nut.
- the components that make up are mechanically coupled.
- the contact resistance between the brushes 20, 20 and the commutator 15, which is an electrical factor, is formed on the outer peripheral surface of the gear housing 26 located on the back surface of the speed reduction mechanism housing portion 26 f.
- a first heat sink 26i as a first heat radiating member that releases generated Joule heat and frictional heat generated by sliding between the brushes 20 and 20 and the commutator 15 which are mechanical factors, and a control board described later
- a second heat sink 26j as a second heat dissipating member that releases heat generated from the FET 29e attached to the second heat dissipating member and a third heat sink 26k as a third heat dissipating member are formed.
- the first heat sink 26i protrudes from the outer peripheral surface of one flat surface portion 26c where the brushes 20 and 20 are disposed close to each other among the pair of flat surface portions 26c of the brush holder housing portion 26d, and has a predetermined interval. A plurality are formed in parallel. The first heat sink 26 i is formed to be parallel to the longitudinal direction of the armature shaft 14.
- the two brushes 20, 20 arranged at an angle of approximately 90 degrees to each other are arranged at positions close to the first heat sink 26 i, so that the brushes The heat generated from 20, 20 is transmitted to the first heat sink 26i and radiated to the outside.
- the brushes 20 and 20 are disposed at a position away from the control board 29c with respect to the first heat sink 26i, the heat generated from the brush is easily transferred to the first heat sink 26i, and the control board 29c. Is difficult to communicate.
- a gel-like heat conduction member 28 is disposed between the base portion 19c and the brush holder contact portion 26e of the gear housing 26, and the heat generated from the brushes 20 and 20 is It is easily transmitted to the first heat sink 26i via the heat conducting member 28.
- a bottomed gear housing cover 29 formed of an insulating material is provided in the opening of the gear housing 26, and the open end surface of the gear housing 26 and the gear housing cover 29 are brought into contact with each other, so that a plurality of screws are provided.
- the gear housing cover 29 is fixed to the gear housing 26 by 40.
- the gear housing cover 29 includes a coupler portion 29a, and the coupler portion 29a is provided with a plurality of terminals 29f.
- One end of the plurality of terminals 29f is electrically connected to a connector portion (not shown) provided in the vehicle, and the other end of the plurality of terminals 29f is electrically connected to the control board 29c.
- An intermediate portion of the terminal 29f is embedded in the gear housing cover 29.
- two male terminals 29 g protrude from the bottom 29 h of the gear housing cover 29 and are electrically connected to the female brush terminal 23 arranged in the brush holder unit 19.
- the electric power supplied from the power source of the vehicle passes through the plurality of terminals 29f, the control board 29c, the male terminal 29g, the female brush terminal 23, the pigtail 20a, and the brushes 20 and 20 to the motor unit 10. Is supplied.
- control board 29c is attached to the bottom 29h of the gear housing cover 29 by a plurality of screws, and is accommodated in the reduction mechanism accommodating portion 26f of the gear housing 26.
- a Hall IC 29d for absolute position detection is provided on the surface of the control board 29c facing the bottom 29h of the gear housing cover.
- the Hall IC 29d for absolute position detection is arranged to face the magnet 25c provided at the base end of the output shaft of the worm wheel portion 25a, and detects the rotation state of the output shaft 24 of the wiper motor 1.
- the control board 29 c controls the rotation of the armature 18 of the motor unit 10 based on the rotation state of the output shaft 24 of the wiper motor 1.
- a plurality of FETs 29e are provided on the control board 29c, and the current supplied to the motor unit 10 is controlled by the on / off operation of the FETs 29e, and the forward and reverse rotations of the armature 18 of the motor unit 10 are controlled. Further, a temperature detection unit (not shown) is disposed on the control board 29c, and the temperature of the control board 29c is detected.
- the temperature detection unit detects that the temperature of the control board 29c is equal to or higher than a predetermined temperature, the fact that the temperature is higher than the predetermined temperature from the temperature detection unit Based on this signal, the control board 29c lowers the rotation speed of the armature 18, further stops the rotation of the armature 18, and the temperature detection unit protects the control board 29c of the wiper motor 1.
- an FET heat radiating portion 26m is formed on the surface of the speed reduction mechanism accommodating portion 26f close to the FET 29e.
- the FET heat radiating portion 26m protrudes from the bottom surface of the speed reduction mechanism accommodating portion 26f in the opening direction, and is formed close to the back surface of the control substrate 29c to which the FET 29e is fixed.
- An FET heat radiating member 30 made of a highly thermally conductive material is attached to the FET heat radiating portion 26m so as to fill a gap between the control substrate 29c and the FET heat radiating portion 26m.
- the generated heat is transmitted to the FET heat radiating portion 26m via the control board 29c and the FET heat radiating member 30, and the second heat sink 26j and the third heat sink 26k formed on the outer peripheral surface of the gear housing 26 Heat is dissipated to the outside. Thereby, the temperature rise of the control board 29c by heat_generation
- a control board cover 31 made of an insulating material is attached to the gear housing cover 29 between the worm wheel part 25a housed in the speed reduction mechanism housing part 26f and the control board 29c.
- the control board cover 31 is disposed between the worm wheel part 25a and the control board 29c, and is fixed so that the grease applied to the speed reduction mechanism part 25 does not adhere to the control board 29c.
- the second heat sink 26j and the third heat sink 26k are provided outside (on the opposite side to the gear housing cover 29) on the outer peripheral surface of the gear housing 26 in the vicinity of the first heat sink 26i. It is formed to extend.
- a plurality of FETs 29e are disposed adjacent to the second heat sink 26j and the third heat sink 26k with the control substrate 29c interposed therebetween. Thereby, the heat generated from the FET 29e is radiated to the outside of the gear housing 26 from the second heat sink 26j and the third heat sink 26k via the control board 29c.
- the present invention is not limited to this, and the brush accommodated in a gear housing having an oval shape and the proximity of the brush
- the present invention can be applied to all motors with a speed reduction mechanism having a structure in which a heat sink is arranged on the outer peripheral surface of the gear housing.
- a magnet having four or more poles may be used, or a cylindrical magnet (ring magnet) is magnetized to four poles. Or 4 or more poles.
- the present invention discloses an embodiment of a wiper motor in which a wiper component such as an armature or a speed reduction mechanism is accommodated in a gear housing coupled to the yoke, and a wiper component such as an armature or a speed reduction mechanism.
- the storage case for storing the battery may be integrally formed with an iron plate in advance, and after the wiper component is incorporated into one of the storage cases, the other storage case may be superimposed on the one storage case. .
- the wiper motor is used as a drive source of a wiper device mounted on a vehicle such as an automobile, and is used for wiping rainwater and the like attached to the windshield by driving the wiper arm to swing.
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- Microelectronics & Electronic Packaging (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
Description
Claims (4)
- ヨークと、
前記ヨークの内周面上に配置されて異なる磁極が交互に配置された少なくとも4極からなるマグネットと、
一端が前記ヨークの底部に回転自在に支承されたアーマチュアシャフトと、前記アーマチュアシャフトに固定されたコンミテータと、前記アーマチュアシャフトに固定され、巻き線が巻装されるコアとを有し、前記マグネットの内側に回転自在に配置されるアーマチュアと、
前記コンミテータに摺接し、前記アーマチュアの回転方向に90度離れて配置された2本のブラシと、
前記アーマチュアシャフトに形成されたウォームと噛合して前記アーマチュアの回転を伝達する出力軸を有する減速機構部と、
前記ヨークに結合され、前記減速機構部が収容される減速機構収容部を有するとともに、有底開口形状に形成されたギヤハウジングと、
前記ギヤハウジングの開口を覆うギヤハウジングカバーと、
前記出力軸に取付けられたマグネットと、
前記マグネットに対向して配置された絶対位置検出用センサと、
前記絶対位置検出用センサが取り付けられて前記ギヤハウジングと前記ギヤハウジングカバーとの間に配置され、前記アーマチュアの回転を制御する制御基板と、
を有することを特徴とするワイパモータ。 - 請求項1に記載されたワイパモータにおいて、前記出力軸には、揺動部材が直接固定される固定部が形成されていることを特徴とするワイパモータ。
- ケースと、
前記ケースの内側に配置され、異なる磁極が交互に配置された少なくとも4極からなるマグネットと、
一端が前記ケースに回転自在に支承されたアーマチュアシャフトと、前記アーマチュアシャフトに固定されたコンミテータと、前記アーマチュアシャフトに固定され、巻き線が巻装されるコアとを有し、前記マグネットの内側に回転自在に配置されるアーマチュアと、
前記コンミテータに摺接し、前記アーマチュアの回転方向に90度離れて配置された2本のブラシと、
前記ケースに収容され、前記アーマチュアシャフトに形成されたウォームと噛合して前記アーマチュアの回転を伝達する出力軸を有する減速機構部と、
前記出力軸に取付けられたマグネットと、
前記マグネットに対向して配置された絶対位置検出用センサと、
前記絶対位置検出用センサが取り付けられて前記ケースに収容されるとともに、前記アーマチュアの回転を制御する制御基板と、
を有することを特徴とするワイパモータ。 - 請求項3に記載されたワイパモータにおいて、前記出力軸には、揺動部材が直接固定される固定部が形成されていることを特徴とするワイパモータ。
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201180075001.7A CN103947087B (zh) | 2011-11-22 | 2011-11-22 | 雨刮器电动机 |
PCT/JP2011/076927 WO2013076815A1 (ja) | 2011-11-22 | 2011-11-22 | ワイパモータ |
CN201710669833.0A CN107317429A (zh) | 2011-11-22 | 2011-11-22 | 雨刮器控制电动机 |
EP11876134.5A EP2784912A4 (en) | 2011-11-22 | 2011-11-22 | WIPER MOTOR |
CN201710669849.1A CN107528417A (zh) | 2011-11-22 | 2011-11-22 | 雨刮器控制电动机 |
US14/357,816 US9525322B2 (en) | 2011-11-22 | 2011-11-22 | Wiper motor |
US15/337,131 US10320265B2 (en) | 2009-07-30 | 2016-10-28 | Wiper motor |
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PCT/JP2011/076927 WO2013076815A1 (ja) | 2011-11-22 | 2011-11-22 | ワイパモータ |
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US13/387,560 Continuation-In-Part US9000634B2 (en) | 2009-07-30 | 2010-07-26 | Motor with speed reduction mechanism |
PCT/JP2010/062544 Continuation-In-Part WO2011013629A1 (ja) | 2009-07-30 | 2010-07-26 | 減速機構付きモータ |
US14/357,816 A-371-Of-International US9525322B2 (en) | 2011-11-22 | 2011-11-22 | Wiper motor |
US15/337,131 Continuation-In-Part US10320265B2 (en) | 2009-07-30 | 2016-10-28 | Wiper motor |
Publications (1)
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WO2013076815A1 true WO2013076815A1 (ja) | 2013-05-30 |
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PCT/JP2011/076927 WO2013076815A1 (ja) | 2009-07-30 | 2011-11-22 | ワイパモータ |
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US (1) | US9525322B2 (ja) |
EP (1) | EP2784912A4 (ja) |
CN (3) | CN107317429A (ja) |
WO (1) | WO2013076815A1 (ja) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103633768A (zh) * | 2013-11-27 | 2014-03-12 | 镇江先锋汽车零部件有限公司 | 雨刮电机的外壳 |
CN103683679A (zh) * | 2013-08-09 | 2014-03-26 | 张岳峰 | 一种电子式无触点单向旋转智能雨刮器电机 |
JP2016174481A (ja) * | 2015-03-17 | 2016-09-29 | アスモ株式会社 | 減速機付モータ |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10320265B2 (en) * | 2009-07-30 | 2019-06-11 | Mitsuba Corporation | Wiper motor |
BR112012002026B1 (pt) | 2009-07-30 | 2020-02-04 | Mitsuba Corp | motor com mecanismo de redução de velocidade |
JP6026972B2 (ja) * | 2013-08-07 | 2016-11-16 | アスモ株式会社 | 減速機付モータ |
DE102015220900A1 (de) * | 2015-10-27 | 2017-04-27 | Robert Bosch Gmbh | Wischerdirektantrieb |
EP3279043B1 (en) * | 2016-08-05 | 2018-12-05 | MEAS France | Sensor mounting system |
DE102016221052A1 (de) * | 2016-10-26 | 2018-04-26 | Robert Bosch Gmbh | Wischerantrieb für eine Wischeranlage eines Kraftfahrzeugs |
US10864894B2 (en) * | 2017-01-20 | 2020-12-15 | Denso Corporation | Wiper device |
ES2894253T3 (es) * | 2017-05-24 | 2022-02-14 | Ims Gear Se & Co Kgaa | Disposición de conexión de motor-engranaje, en particular, para su uso en vehículos |
CN107565733A (zh) * | 2017-09-12 | 2018-01-09 | 天津富民伟业科技有限公司 | 雨刷电机安装加强壳 |
US11722036B2 (en) | 2021-06-14 | 2023-08-08 | Commercial Vehicle Group, Inc. | Wiper motors and methods of manufacture and use thereof |
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CN201118416Y (zh) * | 2007-08-24 | 2008-09-17 | 宁波骏腾国际工贸有限公司 | 洗衣机调频直驱电机装置 |
JP4997152B2 (ja) * | 2008-03-14 | 2012-08-08 | 株式会社ミツバ | 電動モータおよびその製造方法 |
JP2010136588A (ja) | 2008-12-08 | 2010-06-17 | Mitsuba Corp | アクチュエータ |
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2011
- 2011-11-22 EP EP11876134.5A patent/EP2784912A4/en not_active Withdrawn
- 2011-11-22 WO PCT/JP2011/076927 patent/WO2013076815A1/ja active Application Filing
- 2011-11-22 US US14/357,816 patent/US9525322B2/en active Active
- 2011-11-22 CN CN201710669833.0A patent/CN107317429A/zh active Pending
- 2011-11-22 CN CN201710669849.1A patent/CN107528417A/zh active Pending
- 2011-11-22 CN CN201180075001.7A patent/CN103947087B/zh active Active
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JP2009189093A (ja) | 2008-02-04 | 2009-08-20 | Mitsuba Corp | 電動モータ |
WO2011013629A1 (ja) * | 2009-07-30 | 2011-02-03 | 株式会社ミツバ | 減速機構付きモータ |
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103683679A (zh) * | 2013-08-09 | 2014-03-26 | 张岳峰 | 一种电子式无触点单向旋转智能雨刮器电机 |
CN103633768A (zh) * | 2013-11-27 | 2014-03-12 | 镇江先锋汽车零部件有限公司 | 雨刮电机的外壳 |
JP2016174481A (ja) * | 2015-03-17 | 2016-09-29 | アスモ株式会社 | 減速機付モータ |
Also Published As
Publication number | Publication date |
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CN107317429A (zh) | 2017-11-03 |
US9525322B2 (en) | 2016-12-20 |
CN107528417A (zh) | 2017-12-29 |
EP2784912A4 (en) | 2015-08-12 |
CN103947087B (zh) | 2017-08-25 |
CN103947087A (zh) | 2014-07-23 |
EP2784912A1 (en) | 2014-10-01 |
US20150180305A1 (en) | 2015-06-25 |
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