WO2016010023A1 - ブラシレスワイパモータ - Google Patents
ブラシレスワイパモータ Download PDFInfo
- Publication number
- WO2016010023A1 WO2016010023A1 PCT/JP2015/070112 JP2015070112W WO2016010023A1 WO 2016010023 A1 WO2016010023 A1 WO 2016010023A1 JP 2015070112 W JP2015070112 W JP 2015070112W WO 2016010023 A1 WO2016010023 A1 WO 2016010023A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- wiper motor
- case portion
- motor
- brushless
- brushless wiper
- Prior art date
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Classifications
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- 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
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- 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
- H02K5/06—Cast metal casings
-
- 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
- H02K7/08—Structural association with bearings
-
- 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
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/22—Arrangements for cooling or ventilating by solid heat conducting material embedded in, or arranged in contact with, the stator or rotor, e.g. heat bridges
- H02K9/227—Heat sinks
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K21/00—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets
- H02K21/12—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets
- H02K21/14—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets rotating within the armatures
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- 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
- H02K5/16—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields
-
- 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
- H02K7/06—Means for converting reciprocating motion into rotary motion or vice versa
Definitions
- the present invention relates to a brushless wiper motor that swings and drives a wiper member provided on a windshield.
- Such a wiper motor is described in Patent Document 1, for example.
- the wiper motor (motor with a speed reduction mechanism) described in Patent Document 1 includes a motor portion and a speed reduction portion.
- the motor unit includes a metal yoke housing, and a stator having windings is fixed inside the yoke housing.
- a rotor is rotatably provided inside the stator.
- the motor part of the wiper motor described in Patent Document 1 is a brushless motor.
- the speed reduction part includes an aluminum gear housing, and a worm part provided on the rotating shaft of the rotor and a worm wheel meshed with the worm part are accommodated in the gear housing.
- the worm portion and the worm wheel form a speed reduction mechanism, and the speed reduction mechanism reduces the rotation of the rotating shaft to increase the torque, and outputs the increased torque to the outside from the output shaft fixed to the worm wheel.
- An object of the present invention is to provide a brushless wiper motor that can improve heat dissipation and heat resistance, and can improve workability while eliminating lack of rigidity.
- a brushless wiper motor that swings and drives a wiper member, a first case part in which a stator is fixed inside, a rotor that is rotatably provided inside the stator, A gear mechanism that transmits the rotation of the rotor to the wiper member; and a second case portion that is integrally formed with the first case portion using the same material as the first case portion, and in which the gear mechanism is housed.
- an uneven portion that increases the surface area is formed outside at least one of the first case portion and the second case portion.
- the first case portion and the second case portion are made of aluminum.
- the first case portion is provided with a holding structure for holding a bearing that rotatably supports the rotor.
- the first case portion includes an opening that opens in the axial direction of the rotor, and the opening is closed by a cover member that does not contact the rotor.
- the axial end of the stator is provided so as to protrude from the opening, and the axial end of the stator is covered with the cover member.
- the first case part in which the stator is fixed inside and the second case part in which the gear mechanism is accommodated are integrally formed of the same material, so that the first case part is transmitted to the first case part. It is possible to dissipate the heat directly from the first case part to the outside without going through the second case part. As a result, a brushless wiper motor with improved heat dissipation and increased heat resistance can be realized.
- the material of the first and second case parts a material having a high thermal conductivity, insufficient rigidity of the first and second case parts can be solved while ensuring sufficient heat dissipation.
- first and second case parts can be integrally formed by casting or the like, the workability of the first and second case parts can be improved.
- a vehicle 10 such as an automobile is provided with a front windshield 11.
- a wiper device 12 is mounted on the front end portion of the front windshield 11 in the vehicle 10.
- the wiper device 12 is driven by turning on a wiper switch (not shown) provided in the passenger compartment, thereby wiping off deposits (not shown) such as rainwater adhering to the front windshield 11.
- the wiper device 12 includes a brushless wiper motor 20, a power transmission mechanism 14 that transmits the swinging motion of the brushless wiper motor 20 to the pivot shafts 13a and 13b, a proximal end side fixed to the pivot shafts 13a and 13b, and a distal end side.
- a pair of wiper members 15a and 15b that perform a reciprocating wiping operation on the front windshield 11 by swinging movement of the pivot shafts 13a and 13b are provided.
- the wiper members 15a and 15b are provided corresponding to the driver seat side and the passenger seat side, respectively.
- Each of the wiper members 15a and 15b includes a wiper arm 16a and 16b, and wiper blades 17a and 17b attached to the wiper arms 16a and 16b, respectively.
- the swinging motion of the brushless wiper motor 20 is transmitted to the pivot shafts 13a and 13b via the power transmission mechanism 14.
- the pivot shafts 13a and 13b are driven to swing.
- the driving force of the brushless wiper motor 20 is transmitted to the wiper members 15a and 15b, and the adhered matter adhering in the wiping ranges 11a and 11b of the front windshield 11 is wiped by the wiper blades 17a and 17b.
- the brushless wiper motor 20 includes a housing 21 formed in a predetermined shape by casting a molten aluminum material.
- the housing 21 includes a motor case portion 30 as a first case portion and a gear case portion 50 as a second case portion. That is, the gear case part 50 is integrally formed with the motor case part 30 with the same material (aluminum material in the present embodiment) as the motor case part 30.
- the motor case portion 30 includes a cylindrical main body portion 31 formed in a substantially cylindrical shape. On the side of the gear case portion 50 along the axial direction of the cylindrical main body portion 31, an annular bottom portion 32 having a bearing mounting hole 32a at the center is integrally provided. On the other hand, an opening 33 that opens in the axial direction of the rotor 37 is formed on the side opposite to the gear case 50 side along the axial direction of the cylindrical main body 31. The opening 33 is closed by a cover member 35.
- the one end side in the axial direction of the stator 36 (left side in FIG. 4) is in contact with the stepped portion 31c. That is, the step portion 31 c positions the stator 36 with respect to the axial direction of the cylindrical main body portion 31.
- the cover mounting collar 31d is formed with an annular convex portion 31e so as to protrude to the other axial side of the cylindrical main body 31 (the right side in FIG. 4).
- the annular convex portion 31 e enters an annular concave portion 35 d provided in the annular mounting portion 35 b of the cover member 35.
- three female screw portions 31f are formed around the cover mounting collar 31d so as to protrude outward in the radial direction of the cover mounting collar 31d. These female screw portions 31f are arranged at equal intervals (120 ° intervals) along the circumferential direction of the cover mounting collar portion 31d, and the fixing screws S1 are respectively screwed together.
- the plurality of cooling fins 34 are arranged at two locations on the output shaft 56 side and the gear cover 60 side along the circumferential direction of the cylindrical main body 31. That is, the plurality of cooling fins 34 are not provided over the entire circumference of the cylindrical main body 31. Thereby, sufficient heat dissipation in the motor case part 30 and sufficient intensity
- cooling fins can be provided over the entire circumference of the cylindrical main body 31. By providing the cooling fins on the entire circumference of the cylindrical main body 31, it is possible to improve the fluidity of the molten aluminum material at the time of casting, thereby improving the productivity. Moreover, compared with the case where a cooling fin is partially provided, the cooling property of the motor case part 30 can be improved. Furthermore, when rainwater adheres to the cylindrical body part 31, the rainwater can be easily flowed. it can.
- a cover member 35 is attached to the opening 33 of the cylindrical main body 31.
- the cover member 35 is formed in a substantially disc shape from a synthetic resin such as plastic, and includes a bottom wall portion 35a and an annular mounting portion 35b. In the center portion of the bottom wall portion 35a, a concave portion 35c is provided that is recessed toward the cylindrical main body portion 31 (left side in FIG. 4).
- the recess 35c has a function of increasing the rigidity of the cover member 35, and a function of preventing the bottom wall 35a from resonating during operation of the brushless wiper motor 20 and preventing the generation of abnormal noise.
- the rotor 37 including the rotating shaft 38 does not come into contact with the recess 35 c provided in the cover member 35.
- An annular stator contact portion 35e is provided on the radially inner side of the annular mounting portion 35b.
- the stator contact portion 35 e is in contact with the other axial end of the stator 36.
- the stator contact portion 35e positions the stator 36 with respect to the axial direction of the cylindrical main body 31 together with the step portion 31c when the stator 36 is assembled to the cylindrical main body 31.
- Three screw fixing portions 35f are formed on the radially outer side of the annular mounting portion 35b so as to protrude outward in the radial direction of the annular mounting portion 35b. These screw fixing portions 35f are arranged at equal intervals (120 degree intervals) along the circumferential direction of the annular mounting portion 35b, and the fixing screws S1 are respectively inserted therethrough. Each fixing screw S1 is for fixing the cover member 35 to the cylindrical main body 31, and is screwed to each female screw 31f.
- the mounting relationship between the opening 33 of the cylindrical body 31 and the cover member 35 may be as shown in FIG. Specifically, the axial length of the cylindrical main body 31 is shortened, whereby the axial end of the stator 36 is projected from the opening 33. The axial end of the stator 36 protruding from the opening 33 is covered with a cover member 35.
- the cover member 35 of the modification shown in FIG. 5 does not include the stator contact portion 35e shown in FIG. 4, but instead of the stator contact portion 35e, an outer fitting portion 35g on the radially outer side of the annular mounting portion 35b. Is provided.
- the stator 36 is provided with a resin coil bobbin 36a which is an insulator.
- a U-phase, V-phase, and W-phase (three-phase) coil 36b is wound around the coil bobbin 36a with a predetermined number of turns. Ends (not shown) of these U-phase, V-phase, and W-phase coils 36b are electrically connected to form a star connection (Y connection).
- Y connection a star connection
- other connection methods such as not only a star connection but delta connection (triangular connection), for example, may be sufficient.
- a driving current is supplied to each of the coils 36b at a predetermined timing from a plurality of electronic components EP such as switching elements of the control board 70 mounted inside the gear cover 60.
- a plurality of electronic components EP such as switching elements of the control board 70 mounted inside the gear cover 60.
- the plurality of permanent magnets 37 a are arranged at equal intervals so that the polarities are alternately arranged along the circumferential direction of the rotor 37.
- the brushless wiper motor 20 is a brushless motor having an SPM (Surface Permanent Magnet) structure in which a plurality of permanent magnets 37 a are mounted on the surface of the rotor 37.
- the brushless motor is not limited to a brushless motor having an SPM structure, and may be a brushless motor having an IPM (Interior / Permanent / Magnet) structure in which a plurality of permanent magnets are embedded in the rotor 37.
- Rotating shaft 38 is fixed through the shaft center of rotor 37.
- a substantially central portion along the axial direction of the rotary shaft 38 is rotatably supported by a first ball bearing (bearing) 39 mounted in the bearing mounting hole 32a of the cylindrical main body 31. That is, the rotor 37 is rotatably supported by the first ball bearing 39.
- the outer ring 39a of the first ball bearing 39 is pressed and fixed to the bearing mounting hole 32a by an annular stopper spring 40.
- the stopper spring 40 is fixed to the stopper fixing portion 32b formed on the annular bottom portion 32 by press fitting.
- the bearing mounting hole 32a and the stopper fixing portion 32b of the motor case portion 30 and the stopper spring 40 constitute a holding structure in the present invention.
- the inner ring 39b of the first ball bearing 39 is fixed to a substantially central portion along the axial direction of the rotary shaft 38 by a retaining ring, caulking or the like (not shown). That is, by fixing the first ball bearing 39 in the bearing mounting hole 32a, the rotary shaft 38 cannot move in the axial direction. Therefore, the rotating shaft 38 does not rattle in the axial direction inside the housing 21 and can thus rotate smoothly. Therefore, a large load that moves the stator 36 in the axial direction is not applied to the stator 36.
- the side opposite to the rotor 37 side along the axial direction of the rotary shaft 38 extends to the inside of the gear case body 51 forming the gear case portion 50. Then, one axial end side (left side in FIG. 4) of the rotation shaft 38 is rotatably supported by a second ball bearing 41 mounted on the bearing mounting portion 51 a of the gear case body 51.
- the second ball bearing 41 is only smaller than the first ball bearing 39 because it only supports the rotary shaft 38 from the radial direction.
- a worm 38a that forms a speed reduction mechanism (gear mechanism) SD is integrally provided between the first ball bearing 39 and the second ball bearing 41 along the axial direction of the rotary shaft 38.
- a spiral worm tooth (not shown) that meshes with the gear teeth 55a of the worm wheel 55 is formed on the outer peripheral portion of the worm 38a.
- the gear case main body 51 is formed in a substantially bathtub-shaped bottom with a bottom 52, a side wall 53, and an opening 54.
- the bottom 52 is integrated with the annular bottom 32 of the cylindrical main body 31 on one side (the upper side in FIG. 4) sandwiching the rotation shaft 38. Further, the other side (the lower side in FIG. 4) sandwiching the rotation shaft 38 in the annular bottom 32 of the cylindrical main body 31 forms a part of the opening 54.
- a worm wheel 55 is rotatably housed inside the gear case main body 51.
- the worm wheel 55 is formed in a substantially disc shape from a synthetic resin such as POM (polyacetal) plastic, for example, and gear teeth 55a are formed on the outer peripheral portion.
- the gear teeth 55a of the worm wheel 55 are engaged with the worm teeth of the worm 38a.
- the worm wheel 55 and the worm 38a constitute a speed reduction mechanism SD accommodated in the gear case main body 51.
- the base end side of the output shaft 56 is fixed to the shaft center of the worm wheel 55, and the output shaft 56 is rotatably supported by a boss portion 52a provided integrally with the bottom portion 52 of the gear case body 51.
- the distal end side of the output shaft 56 extends to the outside of the gear case body 51, and the power transmission mechanism 14 (see FIG. 1) is fixed to the distal end portion of the output shaft 56.
- the rotational speed of the rotating shaft 38 is decelerated by the deceleration mechanism SD, and the output that has been decelerated and increased in torque is transmitted from the output shaft 56 to the power transmission mechanism 14.
- the wiper members 15a and 15b (see FIG. 1) are driven to swing.
- the speed reduction mechanism SD transmits the rotation of the rotor 37 to the wiper members 15a and 15b via the power transmission mechanism 14.
- cooling fins 52b as concave and convex portions are integrally provided outside the bottom portion 52 forming the gear case main body 51.
- These cooling fins 52b are arranged in the vicinity of a switching element (not shown) that is mounted on the control board 70 (see FIG. 4) and easily generates heat. Thereby, the heat accumulated in the switching element can be quickly dissipated to the outside of the gear case main body 51, and as a result, the overall heat dissipation of the control board 70 is improved.
- the opening 54 of the gear case body 51 is sealed with a gear cover 60 made of synthetic resin such as plastic.
- the gear cover 60 is fixed to the gear case main body 51 by three fixing screws S2.
- a control board 70 that controls the rotation of the rotor 37 is fixed inside the gear cover 60.
- an in-vehicle battery (not shown) and a wiper switch are connected via an external connector (not shown) on the vehicle 10 side connected to a connector connecting portion 61 (see FIG. 3) provided on the gear cover 60. Electrically connected.
- a rotation detection sensor 71 for detecting the rotation state (rotation direction, rotation speed, etc.) of the rotation shaft 38 is mounted on the control board 70.
- a Hall sensor (Hall IC) for detecting a magnetic field is used as the rotation detection sensor 71.
- the rotation detection sensor 71 is opposed to a sensor magnet MG that is fixed to the rotation shaft 38 and rotates together with the rotation shaft 38.
- the polarity of the sensor magnet MG appears alternately in the circumferential direction. Thereby, a pulse signal is output from the rotation detection sensor 71 along with the rotation of the sensor magnet MG.
- a CPU mounted on the control board 70 monitors a pulse signal from the rotation detection sensor 71. As a result, the CPU grasps the operating state (position, speed, etc.) of each wiper blade 17a, 17b (see FIG. 1), and drives the brushless wiper motor 20 to rotate.
- the brushless wiper motor 20 When the wiper switch is turned on, the brushless wiper motor 20 is driven to rotate.
- the CPU mounted on the control board 70 sequentially controls on / off of the switching elements corresponding to the U-phase, V-phase, and W-phase coils 36b. Thereby, electromagnetic force is sequentially generated in the circumferential direction of the stator 36 in each of the U-phase, V-phase, and W-phase coils 36b. Therefore, the rotor 37 on which the permanent magnet 37a is mounted is driven in a predetermined rotation direction at a predetermined rotation speed.
- each coil 36b immediately becomes high temperature, but the heat accumulated in each coil 36b is efficiently dissipated to the outside through the stator 36, the cylindrical body 31 and each cooling fin 34.
- the plurality of switching elements mounted on the control board 70 are also controlled to be turned on / off at high speed, the temperature immediately rises like the coils 36b.
- the heat accumulated in each switching element is the bottom 52. And efficiently dissipated to the outside through the three cooling fins 52b.
- the coil temperature was compared between the present structure and the previous structure under the same operating conditions. Then, in the structure of the present application, since the motor case portion 30 and the gear case portion 50 are integrally formed of an aluminum material, the heat dissipation is greatly improved, and the temperature of each coil 36b is “about 80 ° C.”. On the other hand, in the conventional structure, since the motor case is made of iron, the heat dissipation is poor as compared with the structure of the present application, and the temperature of each coil was “about 140 ° C.”. Further, the temperature of the motor case 30 in the structure of the present application was “about 60 ° C.”, and the temperature of the iron motor case in the conventional structure was “about 100 ° C.”.
- the material of the motor case 30 and the gear case 50 is made of aluminum having a high thermal conductivity, sufficient heat dissipation can be ensured. Since sufficient heat dissipation can be ensured, the thickness of the motor case portion 30 and the gear case portion 50 can be increased to solve the lack of rigidity.
- the motor case 30 and the gear case 50 can be integrally formed by casting or the like, it is not necessary to manufacture the motor case 30 and the gear case 50 separately. Moreover, since it is not necessary to press the steel plate as before, the workability of the motor case portion 30 and the gear case portion 50 can be improved.
- the brushless wiper motor 20 can be applied well to a modular wiper device.
- an application example (modification) of the brushless wiper motor 20 to the modular wiper device will be described with reference to FIG.
- the pipe frame 81 of the modular wiper device 80 can be disposed across the space SP. That is, the brushless wiper motor 20 can be fixed to the pipe frame 81 at a position that is approximately the center of gravity of the brushless wiper motor 20. Therefore, the modular wiper device 80 having an excellent weight balance can be realized.
- the brushless wiper motor 20 applied to the modular wiper device 80 does not include the mounting leg 57 (see FIG. 2) and is fixed to the pipe frame 81 by a mounting bracket (not shown).
- the first and second pivots 82a and 82b are fixed to both sides in the longitudinal direction of the pipe frame 81. These first and second pivots 82a and 82b rotate around the first and second pivot shafts 83a and 83b. Supports freely.
- a power transmission mechanism 84 that transmits the swinging motion of the output shaft 56 to the first and second pivot shafts 83a and 83b is provided at the base ends of the first and second pivot shafts 83a and 83b.
- the proximal end portions of the wiper arms 16a and 16b are fixed to the distal end portions of the first and second pivot shafts 83a and 83b.
- Embodiment 2 of the present invention will be described in detail with reference to the drawings. Note that portions having the same functions as those of the first embodiment described above are denoted by the same reference numerals, and detailed description thereof is omitted.
- the brushless wiper motor 90 has only a structure for fixing the first ball bearing 39 (see FIG. 4) to the bearing mounting hole 32a as compared with the first embodiment. Is different. Specifically, in the first embodiment, as shown in FIG. 4, an annular stopper spring 40 is assembled in advance to the rotating shaft 38, and the mounting direction (rotation) of the first ball bearing 39 in the bearing mounting hole 32 a is performed. The first ball bearing 39 was fixed to the bearing mounting hole 32a by press-fitting into the stopper fixing portion 32b from the same direction as the axial direction of the shaft 38).
- the first ball bearing 39 is fixed to the bearing mounting hole 32 a by using a stopper member 91 separate from the rotating shaft 38. Yes.
- the stopper member 91 is fixed by press-fitting to a stopper member mounting portion 92 provided in the vicinity of the bearing mounting hole 32a.
- the bearing mounting hole 32a, the stopper member mounting portion 92, and the stopper member 91 constitute a holding structure in the present invention.
- the stopper member 91 is formed in a substantially U shape by pressing a steel plate or the like.
- the stopper member 91 has a pair of bearing pressing portions 91 a that are inserted into the stopper member mounting portion 92.
- a notch 91b that avoids interference with the rotary shaft 38 is provided between the pair of bearing pressing portions 91a.
- the stopper member 91 is provided with a jig abutting portion 91c that is pressed by a pressing jig (not shown) when each bearing pressing portion 91a is inserted into the stopper member mounting portion 92.
- the extending direction of the jig abutting portion 91c is directed substantially perpendicular to the extending direction of each bearing pressing portion 91a.
- the worm 38a side of the rotating shaft 38 is moved from the cylindrical main body 31 side to the bearing mounting hole 32a. Let us face you. Then, the worm 38a is passed through the bearing mounting hole 32a, and the first ball bearing 39 is mounted in the bearing mounting hole 32a. Next, as indicated by a two-dot chain line arrow (2) in FIG. 7, the stopper member 91 is caused to face the stopper member mounting portion 92 from a direction intersecting the axial direction of the rotation shaft 38.
- the stopper member 91 is pressed toward the stopper member mounting portion 92 while applying the pressing jig to the jig abutting portion 91c.
- the first ball bearing 39 is sandwiched between the portion where the bearing mounting hole 32 a along the axial direction of the rotating shaft 38 is formed and the stopper member 91.
- the assembly of the worm 38a (rotary shaft 38) is completed.
- the stopper member 91 is mounted on the stopper member mounting portion 92 from a direction intersecting the axial direction of the rotation shaft 38, so that the rotation shaft 38 is attached to the rotation shaft 38 during the operation of the speed reduction mechanism SD. Even when a large axial force is applied, it is possible to reliably prevent the rotation shaft 38 from moving or rattling in the axial direction.
- the cooling fins 34 and 52b as the concavo-convex portions are provided in both the motor case portion 30 and the gear case portion 50.
- the present invention is not limited to this, and the motor case Any one of the part 30 and the gear case part 50 may be provided with a cooling fin. In this case, it is desirable to provide a cooling fin at a higher temperature during the operation of the brushless wiper motor in order to suppress a decrease in heat dissipation of the entire brushless wiper motor.
- cooling fins 34 as the concavo-convex portions are shown as partially provided so as to extend in the circumferential direction of the cylindrical main body portion 31, but the present invention is not limited thereto, A cooling fin may be provided so as to extend in the axial direction of the cylindrical main body 31. Furthermore, for example, innumerable fine depressions (dimples) may be formed on the outside of the cylindrical main body 31 as an uneven portion. In short, if it is an uneven portion that can increase the surface area on the outside of the cylindrical main body portion 31, The shape and the number to be provided are not limited.
- occludes the opening part 33 was shown with what was formed with synthetic resins, such as a plastics, this invention is not limited to this, Other things, such as iron and aluminum, are shown.
- the cover member may be formed of a material.
- the cover member 35 is fixed with the three fixing screws S1, but the fixing strength of the cover member 35 with respect to the cylindrical main body 31 need not be so high. Therefore, it may be fixed with two fixing screws, fixed with one touch by engagement of the engaging claws, or further, the cover member itself may be screwed to the opening. Moreover, the airtightness between the cover member 35 and the cylindrical main body part 31 should just be hold
- the wiper devices 12 and 80 including the power transmission mechanisms 14 and 84 are shown.
- the power transmission mechanisms 14 and 84 may not be provided.
- a wiper motor corresponding to each pivot shaft 13a, 13b, 83a, 83b is provided to transmit power to each pivot shaft 13a, 13b, 83a, 83b.
- the brushless wiper motors 20 and 90 are applied to the drive source of the wiper device 12 that wipes the front windshield 11 of the vehicle 10, but the present invention is not limited to this.
- the present invention can also be applied to a drive source of a vehicle rear wiper device or a wiper device such as a railway vehicle, a ship, or a construction machine.
- the brushless 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 swinging the wiper arm.
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- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
Description
Claims (6)
- ワイパ部材を揺動駆動するブラシレスワイパモータであって、
固定子が内側に固定される第1ケース部と、
前記固定子の内側に回転自在に設けられる回転子と、
前記回転子の回転を前記ワイパ部材に伝達するギヤ機構と、
前記第1ケース部と同じ素材で当該第1ケース部に一体成形され、前記ギヤ機構が内部に収容される第2ケース部と、
を有する、ブラシレスワイパモータ。 - 請求項1記載のブラシレスワイパモータにおいて、
前記第1ケース部および前記第2ケース部のうちの少なくとも何れか一方の外側に、表面積を増やす凹凸部が形成される、ブラシレスワイパモータ。 - 請求項1記載のブラシレスワイパモータにおいて、
前記第1ケース部および前記第2ケース部がアルミニウム製である、ブラシレスワイパモータ。 - 請求項1記載のブラシレスワイパモータにおいて、
前記第1ケース部には、前記回転子を回転自在に支持する軸受を保持する保持構造が設けられる、ブラシレスワイパモータ。 - 請求項1記載のブラシレスワイパモータにおいて、
前記第1ケース部は、前記回転子の軸方向に開口した開口部を備え、前記開口部は、前記回転子が接触しないカバー部材により閉塞される、ブラシレスワイパモータ。 - 請求項5記載のブラシレスワイパモータにおいて、
前記固定子の軸方向端部を前記開口部から突出させて設け、前記固定子の軸方向端部を前記カバー部材で覆った、ブラシレスワイパモータ。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
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US15/326,060 US20170207684A1 (en) | 2014-07-15 | 2015-07-14 | Brushless wiper motor |
EP15821881.8A EP3170706A4 (en) | 2014-07-15 | 2015-07-14 | Brushless wiper motor |
JP2016534441A JP6634372B2 (ja) | 2014-07-15 | 2015-07-14 | ブラシレスワイパモータ |
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JP2014-145165 | 2014-07-15 | ||
JP2014145165 | 2014-07-15 |
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WO2016010023A1 true WO2016010023A1 (ja) | 2016-01-21 |
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PCT/JP2015/070112 WO2016010023A1 (ja) | 2014-07-15 | 2015-07-14 | ブラシレスワイパモータ |
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US (1) | US20170207684A1 (ja) |
EP (1) | EP3170706A4 (ja) |
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WO (1) | WO2016010023A1 (ja) |
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Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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JP2017147856A (ja) * | 2016-02-17 | 2017-08-24 | 株式会社ミツバ | モータおよび減速機付モータ |
WO2018012074A1 (ja) * | 2016-07-12 | 2018-01-18 | 株式会社ミツバ | ブラシレスワイパモータ |
JP2018038171A (ja) * | 2016-08-31 | 2018-03-08 | 株式会社ミツバ | モータ装置 |
WO2018054574A1 (fr) | 2016-09-26 | 2018-03-29 | Valeo Systèmes d'Essuyage | Moteur electrique a courant continu sans balais pour systeme d'essuyage de vehicule automobile |
WO2018054573A1 (fr) | 2016-09-26 | 2018-03-29 | Valeo Systèmes d'Essuyage | Moteur electrique a courant continu sans balais pour systeme d'essuyage de vehicule automobile |
DE102017107612A1 (de) | 2017-04-10 | 2018-10-11 | Valeo Systèmes d'Essuyage | Bürstenloser Elektromotor und Verfahren zum Herstellen des Elektromotors |
WO2018219620A1 (fr) | 2017-06-02 | 2018-12-06 | Valeo Systèmes d'Essuyage | Moto-reducteur pour systeme d'essuyage de vehicule automobile |
WO2019219372A1 (en) | 2018-05-17 | 2019-11-21 | Valeo Systèmes d'Essuyage | Electric drive device and windshield-wiper motor |
JP2020088994A (ja) * | 2018-11-21 | 2020-06-04 | 株式会社ミツバ | モータ装置およびその製造方法 |
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Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP6431774B2 (ja) * | 2015-01-19 | 2018-11-28 | 株式会社ミツバ | 駆動装置 |
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Citations (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20030213087A1 (en) * | 2002-05-15 | 2003-11-20 | Arman Moein | Direct drive windshield wiper assembly |
JP2003339131A (ja) * | 2002-05-21 | 2003-11-28 | Jidosha Denki Kogyo Co Ltd | モータケース |
JP2004320879A (ja) * | 2003-04-15 | 2004-11-11 | Mitsuba Corp | 減速機構付きモータ |
JP2006240318A (ja) * | 2005-02-28 | 2006-09-14 | Asmo Co Ltd | モジュール型ワイパ装置 |
JP2006254534A (ja) * | 2005-03-08 | 2006-09-21 | Tokyo Parts Ind Co Ltd | 減速機構付き電動モータ |
JP2007181383A (ja) * | 2005-12-28 | 2007-07-12 | Asmo Co Ltd | モータ装置及びワイパ装置 |
JP2007259605A (ja) * | 2006-03-24 | 2007-10-04 | Mitsuba Corp | 減速機構付モータ |
JP2008002496A (ja) * | 2006-06-20 | 2008-01-10 | Asmo Co Ltd | カップリング装置、モータ装置、及びワイパモータ |
JP2008236995A (ja) * | 2007-03-23 | 2008-10-02 | Asmo Co Ltd | モータ装置 |
JP2012147519A (ja) * | 2011-01-07 | 2012-08-02 | Mitsuba Corp | モータ装置 |
WO2013072236A1 (en) * | 2011-11-15 | 2013-05-23 | Valeo Systèmes d'Essuyage | Windscreen wiper motor |
WO2013149952A1 (en) * | 2012-04-03 | 2013-10-10 | Valeo Wischersysteme Gmbh | Device for detecting the angular position of a shaft of a windscreen wiper motor using a magnetoresitive sensor |
JP2013223317A (ja) * | 2012-04-16 | 2013-10-28 | Mitsuba Corp | ブラシレスワイパモータ |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB9615316D0 (en) * | 1995-11-16 | 1996-09-04 | Lucas Ind Plc | Improvements in electric actuators for vehicle powered steering systems |
JP4121262B2 (ja) * | 2001-10-02 | 2008-07-23 | カヤバ工業株式会社 | 動力伝達装置の製造方法および電動パワーステアリング装置の製造方法 |
DK2302055T3 (da) * | 2004-11-12 | 2014-10-13 | Asuragen Inc | Fremgangsmåder og sammensætninger involverende miRNA og miRNA-inhibitormolekyler |
WO2007055296A1 (ja) * | 2005-11-10 | 2007-05-18 | Nsk Ltd. | 電動式パワーステアリング装置 |
FR2893575B1 (fr) * | 2005-11-23 | 2009-06-12 | Falgayras Sa Sa | Dispositif d'entrainement destine notamment a l'entrainement d'un essuie-glace |
JP2008253049A (ja) * | 2007-03-30 | 2008-10-16 | Mitsuba Corp | 電動モータ |
JP2008289260A (ja) * | 2007-05-16 | 2008-11-27 | Nsk Ltd | 回転電機及び電動パワーステアリング装置 |
JP2009148115A (ja) * | 2007-12-17 | 2009-07-02 | Aisin Seiki Co Ltd | モータ |
WO2012077540A1 (ja) * | 2010-12-10 | 2012-06-14 | 株式会社ミツバ | ワイパモータ |
JP2012186981A (ja) * | 2011-03-08 | 2012-09-27 | Yamaha Motor Electronics Co Ltd | モータ |
DE102012100776A1 (de) * | 2012-01-31 | 2013-08-01 | Valeo Systèmes d'Essuyage | Scheibenwischermotor |
WO2013157558A1 (ja) * | 2012-04-16 | 2013-10-24 | 株式会社ミツバ | ブラシレスモータ及びワイパ装置 |
US8891561B2 (en) * | 2012-07-16 | 2014-11-18 | Broadcom Corporation | 50 Gb/s ethernet using serializer/deserializer lanes |
US8945314B2 (en) * | 2012-07-30 | 2015-02-03 | Ecolab Usa Inc. | Biodegradable stability binding agent for a solid detergent |
-
2015
- 2015-07-14 EP EP15821881.8A patent/EP3170706A4/en not_active Withdrawn
- 2015-07-14 WO PCT/JP2015/070112 patent/WO2016010023A1/ja active Application Filing
- 2015-07-14 US US15/326,060 patent/US20170207684A1/en not_active Abandoned
- 2015-07-14 JP JP2016534441A patent/JP6634372B2/ja active Active
Patent Citations (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20030213087A1 (en) * | 2002-05-15 | 2003-11-20 | Arman Moein | Direct drive windshield wiper assembly |
JP2003339131A (ja) * | 2002-05-21 | 2003-11-28 | Jidosha Denki Kogyo Co Ltd | モータケース |
JP2004320879A (ja) * | 2003-04-15 | 2004-11-11 | Mitsuba Corp | 減速機構付きモータ |
JP2006240318A (ja) * | 2005-02-28 | 2006-09-14 | Asmo Co Ltd | モジュール型ワイパ装置 |
JP2006254534A (ja) * | 2005-03-08 | 2006-09-21 | Tokyo Parts Ind Co Ltd | 減速機構付き電動モータ |
JP2007181383A (ja) * | 2005-12-28 | 2007-07-12 | Asmo Co Ltd | モータ装置及びワイパ装置 |
JP2007259605A (ja) * | 2006-03-24 | 2007-10-04 | Mitsuba Corp | 減速機構付モータ |
JP2008002496A (ja) * | 2006-06-20 | 2008-01-10 | Asmo Co Ltd | カップリング装置、モータ装置、及びワイパモータ |
JP2008236995A (ja) * | 2007-03-23 | 2008-10-02 | Asmo Co Ltd | モータ装置 |
JP2012147519A (ja) * | 2011-01-07 | 2012-08-02 | Mitsuba Corp | モータ装置 |
WO2013072236A1 (en) * | 2011-11-15 | 2013-05-23 | Valeo Systèmes d'Essuyage | Windscreen wiper motor |
WO2013149952A1 (en) * | 2012-04-03 | 2013-10-10 | Valeo Wischersysteme Gmbh | Device for detecting the angular position of a shaft of a windscreen wiper motor using a magnetoresitive sensor |
JP2013223317A (ja) * | 2012-04-16 | 2013-10-28 | Mitsuba Corp | ブラシレスワイパモータ |
Non-Patent Citations (1)
Title |
---|
See also references of EP3170706A4 * |
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Publication number | Priority date | Publication date | Assignee | Title |
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JP2017147856A (ja) * | 2016-02-17 | 2017-08-24 | 株式会社ミツバ | モータおよび減速機付モータ |
WO2018012074A1 (ja) * | 2016-07-12 | 2018-01-18 | 株式会社ミツバ | ブラシレスワイパモータ |
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DE102017118835B4 (de) * | 2016-08-31 | 2021-05-06 | Mitsuba Corporation | Motorvorrichtung |
WO2018054574A1 (fr) | 2016-09-26 | 2018-03-29 | Valeo Systèmes d'Essuyage | Moteur electrique a courant continu sans balais pour systeme d'essuyage de vehicule automobile |
WO2018054573A1 (fr) | 2016-09-26 | 2018-03-29 | Valeo Systèmes d'Essuyage | Moteur electrique a courant continu sans balais pour systeme d'essuyage de vehicule automobile |
DE102017107612A1 (de) | 2017-04-10 | 2018-10-11 | Valeo Systèmes d'Essuyage | Bürstenloser Elektromotor und Verfahren zum Herstellen des Elektromotors |
WO2018219620A1 (fr) | 2017-06-02 | 2018-12-06 | Valeo Systèmes d'Essuyage | Moto-reducteur pour systeme d'essuyage de vehicule automobile |
US11548475B2 (en) | 2017-06-02 | 2023-01-10 | Valeo Systèmes d'Essuyage | Gear motor for motor vehicle wiping system |
JP2020533937A (ja) * | 2017-09-13 | 2020-11-19 | ヴァレオ システム デシュヤージュValeo Systemes D’Essuyage | ワイパーモータおよびその組立方法 |
JP7258015B2 (ja) | 2017-09-13 | 2023-04-14 | ヴァレオ システム デシュヤージュ | ワイパーモータおよびその組立方法 |
US11702037B2 (en) * | 2017-11-29 | 2023-07-18 | Mitsuba Corporation | Motor device |
WO2019219372A1 (en) | 2018-05-17 | 2019-11-21 | Valeo Systèmes d'Essuyage | Electric drive device and windshield-wiper motor |
JP7065753B2 (ja) | 2018-11-21 | 2022-05-12 | 株式会社ミツバ | モータ装置およびその製造方法 |
JP2020088994A (ja) * | 2018-11-21 | 2020-06-04 | 株式会社ミツバ | モータ装置およびその製造方法 |
Also Published As
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JP6634372B2 (ja) | 2020-01-22 |
EP3170706A4 (en) | 2018-03-28 |
JPWO2016010023A1 (ja) | 2017-04-27 |
US20170207684A1 (en) | 2017-07-20 |
EP3170706A1 (en) | 2017-05-24 |
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