WO1998038724A1 - Structure de connexion d'un moteur pas a pas - Google Patents
Structure de connexion d'un moteur pas a pas Download PDFInfo
- Publication number
- WO1998038724A1 WO1998038724A1 PCT/JP1998/000322 JP9800322W WO9838724A1 WO 1998038724 A1 WO1998038724 A1 WO 1998038724A1 JP 9800322 W JP9800322 W JP 9800322W WO 9838724 A1 WO9838724 A1 WO 9838724A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- stepping motor
- connection terminal
- circuit board
- connection
- drive shaft
- Prior art date
Links
Classifications
-
- 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
- H02K5/22—Auxiliary parts of casings not covered by groups H02K5/06-H02K5/20, e.g. shaped to form connection boxes or terminal boxes
- H02K5/225—Terminal boxes or connection arrangements
-
- 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
- H02K11/33—Drive circuits, e.g. power electronics
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/46—Fastening of windings on the stator or rotor structure
- H02K3/52—Fastening salient pole windings or connections thereto
- H02K3/521—Fastening salient pole windings or connections thereto applicable to stators only
- H02K3/525—Annular coils, e.g. for cores of the claw-pole type
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K37/00—Motors with rotor rotating step by step and without interrupter or commutator driven by the rotor, e.g. stepping motors
- H02K37/10—Motors with rotor rotating step by step and without interrupter or commutator driven by the rotor, e.g. stepping motors of permanent magnet type
- H02K37/12—Motors with rotor rotating step by step and without interrupter or commutator driven by the rotor, e.g. stepping motors of permanent magnet type with stationary armatures and rotating magnets
- H02K37/14—Motors with rotor rotating step by step and without interrupter or commutator driven by the rotor, e.g. stepping motors of permanent magnet type with stationary armatures and rotating magnets with magnets rotating within the armatures
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K2211/00—Specific aspects not provided for in the other groups of this subclass relating to measuring or protective devices or electric components
- H02K2211/03—Machines characterised by circuit boards, e.g. pcb
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
Definitions
- the present invention relates to an electrical connection structure between a stepping motor and a circuit board, and particularly to a connection structure between a stepping motor and a circuit board which is suitable when the stepping motor is used as a drive unit of an analog type instrument of a moving body such as a vehicle. It is about. Background art
- a circuit board 5 is arranged on the back (other side) opposite to the front (one side) of the stepping motor 3 to be connected, and the circuit board 5 and the terminals 4 are connected by soldering or the like. Overnight 3 on circuit board 5 A structure that connects directly is proposed. With such a configuration, automatic soldering between the stepping module and the circuit board can be performed on the production line, thereby automating the connection work and reducing costs. Becomes possible. By the way, in recent years, a stepping motor has been attracting attention as a drive unit (movement) of an analog type instrument of a moving body such as a vehicle. When the stepping motor is used as a drive unit of an analog type instrument as shown in FIG.
- a circuit board 5 to be soldered and connected to the terminal 4 is disposed on the front surface (one side surface) of the stepping motor 3 from which the drive shaft 1 (the output side) protrudes, and the drive shaft 4 (the Output side)
- the end shall be penetrated from the circuit board 5, and the LED (light emitting diode) 8 shall be arranged on the circuit board 5 to illuminate the pointer 6 and the instrument dial 7 through the diffusion plate 9. Therefore, a simple structure and high-brightness lighting may be aimed at, or a structure aiming to make the device itself thinner may be adopted.
- the present invention has been made in view of this point, and a main object of the present invention is to provide a stepping motor in which a circuit board is disposed in front (one side) of a stepping motor whose output side of a drive shaft projects. It makes it possible to improve the connection work between the motor and the circuit board, and the stepping motor is installed when the circuit board is placed on the front (one side) of the stepping module and when it is placed on the back (other side).
- An object of the present invention is to provide a connection structure for a stepping motor in which the main body structure does not change. Disclosure of the invention
- the present invention provides a stepping damper which rotatably accommodates a rotor having a driving shaft and projects at least an output side of the driving shaft from one side, And a circuit board electrically connected to a circuit board disposed so that an output side end of the drive shaft penetrates at a position where the drive shaft extends.
- An extending first connection terminal is provided, and a relay board electrically connected to the stepping motor is provided on the other side opposite to the one side of the stepping motor in the axial direction of the drive shaft.
- the drive shaft corresponding to the first connection terminal A second connection terminal extending in the axial direction of the second connection terminal and electrically connecting the step pin damper and the circuit board by insertion connection with the first connection terminal.
- circuit board is provided with holding means for positioning and holding the first connection terminal.
- holding means for positioning and holding the second connection terminal is provided on the stepping motor or the relay board.
- the stepping motor has a cover member for covering the outer periphery of the stepping motor, and the holding means for positioning and holding the second connection terminal is continuously provided on the cover member.
- FIG. 1 is an exploded perspective view showing an embodiment in which the present invention is applied to an analog instrument using a stepping motor
- FIG. 2 is an exploded perspective view showing the stepping motor shown in FIG. 1
- FIG. Fig. 1 is a cross-sectional view of the stepping motor taken along line X-X
- Fig. 4 is a cross-sectional view of the stepping motor of Fig. 1 taken along line Y-Y
- Fig. 5 is the assembled state of Fig. 1.
- FIG. 6 is a sectional view showing a conventional example
- FIG. 7 is also a sectional view showing a conventional example.
- the analog type instrument is used, for example, as a speedometer of a car, and has a pointer 21 having a longitudinal indicator 20 and scales, characters, marks, etc. disposed behind the pointer 21.
- Instrument dial 31 on which the indicator part 30 is formed a diffuser 40 made of a translucent material disposed behind the instrument dial 31, and disposed behind the diffuser 40
- the instrument dial 31 can be read in comparison with the indicator 30 of the instrument dial 31.
- the indicator 20 of the pointer 21 and the indicator 30 of the instrument dial 31 are formed of a translucent material, and thus the indicator 20 and the indicator 3 having translucency are formed.
- Numeral 0 indicates that a plurality of chip-type LEDs (light-emitting diodes) 51 mounted on the circuit board 50 emit light through the diffuser 40, so that, for example, when surroundings at night are dark. To ensure visibility.
- the circuit board 50 also includes a round pin-shaped first connection terminal 52 protruding toward the stepping motor 70, and the first connection terminal 52 is provided in the axial direction of a drive shaft described later. And is electrically connected to the stepping motor 70.
- the stepping motor 70 includes a motor main body 71 and a cover member 72 that mainly covers the outer peripheral side of the motor main body 71.
- the motor main body 71 is a so-called PM (permanent magnet) type, and as shown in FIGS. 3 and 4, is a rotatable body 7 1 2 composed of a permanent magnet having a drive shaft 7 1 1 as a center, and an annular pobin 7 1
- Two annular stay cores 7 16 composed of a coil 7 14 wound around 3 and an annular yoke 7 15 are concentrically arranged along the axial direction of the drive shaft 7 1 1 of the rotor 7 1 2. It is composed of a stacked annular stay body 717 and a pair of bearing plates 718 fixed to the opening side of the annular stay body 717, respectively.
- the drive shaft 7 11 is accommodated in the hollow of the body 7 1 7 and the drive shaft 7 1 1 is supported by each bearing plate 7 18 and the output side of the drive shaft 7 1 It protrudes from the front side which is one side of 17 (stepping motor 70), and turns the contactor 7 1 2 by supplying a drive signal (voltage) according to the amount of change in vehicle speed to the coil 7 14 It is designed to be driven.
- one end of the annular pobin 7 13 of the annular stay core 7 16 located on the lower side protrudes in the radial direction of the roof 7 12 and is electrically connected to each coil 7 14
- a plurality of substantially L-shaped terminals 711 electrically connected to the relay board 80 with the other end protruding in the axial direction of the drive shaft 711 are fixed by insert molding.
- the cover member 72 is formed of an insulating material such as a synthetic resin, and has a storage portion 721, which stores the motor body 71, a second connection terminal 73, A hole-shaped holding part (holding means) for holding and positioning and holding the second connection terminal 73 And two.
- the second connection terminal 73 has a hollow box shape with both ends opened and extends in the axial direction of the drive shaft 71 1, and a frame portion 73 1
- An insertion portion 732 formed in the hollow internal space of 31 and a bent shape formed by partially cutting and raising the frame portion 731 so as to protrude into the insertion portion 732.
- the connecting part 7 33 is formed by inserting the first connecting terminal 52 into the insertion part 7 32. Electrical contact between the first and second connection terminals 52, 73 is achieved, and the connection piece 731, which is soldered to the relay board 80, is connected to the second connection terminal 52, 73.
- Connection terminal 7 3 Electrical contact of the relay substrate 8 0 connection is achieved.
- the holding portion 722 is formed so as to substantially conform to the outer diameter of the frame portion 711, and the first portion abutting on the locking portion 733 of the second connection terminal 73.
- the parts 722-2a and 722-2b regulate the movement of the drive shaft 711-1 of the second connection terminal 722-2 in the axial direction.
- the relay substrate 80 has a plurality of through holes that penetrate the terminal 7 19 of the stepping motor 70 and the connection piece 7 35 of the second connection terminal 73.
- a hole 8 1 is provided, and a terminal 7 19 of a stepping module 70 and a connection piece 7 35 of a second connection terminal 7 3 are inserted into the through-hole 8 1 and penetrated therethrough.
- the soldering portions of the connecting pieces 7 3 5 of the terminals 7 3 to the relay board 80 are designed to be electrically connected by a circuit board (not shown), thereby conducting to the coils 7 14.
- a conduction path is formed between the terminal 7 19 and the second connection terminal 73.
- the first connection terminal 52 is soldered to the circuit board 50 in advance.
- the second connection terminal 73 holds the cover member 72 of the stepping motor 70 Store it in the section 7 2 2 and keep the positioning.
- the positioning and holding (storage) of the second connection terminal 73 on the cover member 72 may be performed by inserting and molding the second connection terminal 73 when the cover member 72 is formed. .
- the front surface (one side surface) on which the drive shaft 71 1 of the stepping motor 70 protrudes and is attached to the circuit board 50 is the rear surface (the opposite side) facing the drive shaft 71 1 in the axial direction.
- the electrical connection between the terminal 7 19 of the stepping motor 70, the second connection terminal 73, and the relay board 80 can be performed by an automatic soldering line.
- the crimped part (not shown) that protrudes from the motor body 71 to the relay board 80 side and penetrates the relay board 80.
- a welding protrusion (not shown) projecting from the cover member 72 toward the relay board 80 and penetrating the relay board 80 is heat-welded.
- the drive shaft 7 1 1 of the stepping motor 70 is formed.
- the circuit board 50 is placed on the front surface where the protrudes, and the drive shaft 7 1 1 penetrates the circuit board 50 and the first connection terminal 5 2 is inserted into the insertion portion 7 3 2 of the second connection terminal 7 3.
- connection work (process) between the stepping motor 70 (the second connection terminal 73) and the circuit board 50 (the first connection terminal 52) can be performed by an automatic assembly line. .
- the voltage signal supplied to the circuit board 50 in addition to the first connection terminal 52 and the LED 51 as well as the stepping motor 70 (each coil 714) is changed in accordance with the amount of change in the vehicle speed.
- a drive control circuit (not shown) for controlling is mounted, and the drive control circuit and the first connection terminal 52 are also electrically connected to each other through a circuit pattern (not shown), and are connected to the first connection terminal 52.
- the drive control circuit and each coil 714 are electrically energized.
- the spacer 60, the diffusion plate 40, and the instrument dial 31 are mounted on the circuit board 50.
- the drive shaft 71 is passed through the gap 60, the diffusion plate 40, and the instrument dial 31, and the stepping motor 70, the circuit board 50, the gap 60, and the diffusion
- the plate 40 and the instrument dial 31 are integrally fixed by screws 90.
- the pointer 21 is fixed to the end of the drive shaft 71 1 projecting from the instrument dial 31 to complete the operation.
- the circuit board 50 on which the drive control circuit is provided is disposed on the front surface (one side surface) of the stepping motor 70 on which the output side of the drive shaft 71 1 projects.
- the circuit board 50 is provided with a first connection terminal 52 that extends in the axial direction of the drive shaft 71 1 and conducts with the drive control.
- one side surface of the stepping motor 70 is the axis of the drive shaft 71 1
- a relay board 80 that is electrically connected to the stepping motor 70 is provided on the opposite back side (other side) in the direction, and the drive shaft 71 corresponding to the first connection terminal 52 is provided on the relay board 80.
- connection terminal 73 extending in the axial direction of the first connection terminal and electrically connecting the stepping motor 70 to the circuit board 50 (the drive control circuit) by the insertion connection with the first connection terminal 52
- the first connection terminal 52 on the circuit board 50 side is connected to the step
- the electrical connection between the stepping motor 70 and the circuit board is achieved by the insertion connection with the second connection terminal 73 on the side of the stepping motor 70, and the stepping motor 70 and the circuit board 50 are soldered.
- connection workability is improved, connection work can be performed on an automatic assembly line, workability is improved, and costs can be reduced.
- the structure of the motor main body 71 of the stepping motor 70 changes depending on whether the circuit board 50 is disposed on the front (one side) or the rear (other side) of the stepping motor. Therefore, the motor main body 71 of the stepping motor 70 can be shared, and the cost can also be reduced.
- the holding portion (holding means) 72 for positioning and holding the second connection terminal 73 is provided on the stepping motor 70, so that the second connection terminal 73 is stabilized at a predetermined position.
- the second connection terminal 73 can be securely held, the displacement and deformation of the second connection terminal 73 can be reduced, and the workability and reliability at the time of electrical connection can be improved.
- the holding portion (holding means) 7 22 for positioning and holding the second connection terminal 73 is provided as follows.
- the stepping motor 70 has a cover member 72 covering the outer periphery of the stepping motor 70, and the holding member (holding) for positioning and holding the second connection terminal 73 on the cover member 72.
- Means The continuous provision of 7 2 2 eliminates the need to separately provide a dedicated holding means on the relay board 50, and can reduce the number of parts.
- the first connection terminal 52 is shaped like a round pin and a second connection terminal 73 is connected to the round pin-shaped first connection terminal 52.
- the second connection terminal 73 is rod-shaped and the first connection terminal 52 is rod-shaped.
- the second connection terminal 73 can be formed in a connectable box shape.In this case, the holding means for positioning and holding the box-shaped first connection terminal 52 is fixed to the circuit board 50. Is also good.
- both the first and second connection terminals 52, 73 are used as holding means. It can also be positioned and maintained.
- first and second connection terminals 52, 73 is not limited to the rod-like or box side as described above, but extends in the axial direction of the drive shaft 711, and These shapes or structures can be arbitrarily set as long as electrical connection is achieved by inserting one side into the other side.
- the present invention is not limited to the case where a stepping motor is used as a drive unit of an analog type instrument of a moving body such as a vehicle, but can be widely applied as a connection structure when a stepping motor is incorporated in various devices.
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
- Motor Or Generator Frames (AREA)
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/171,491 US5977670A (en) | 1997-02-28 | 1998-01-26 | Connection structure of stepping motor |
EP98900756A EP0909011B1 (en) | 1997-02-28 | 1998-01-26 | Connection structure of stepping motor |
DE69830879T DE69830879T2 (de) | 1997-02-28 | 1998-01-26 | Verbindungsanordnung eines schrittmotors |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9/45406 | 1997-02-28 | ||
JP9045406A JP3052306B2 (ja) | 1997-02-28 | 1997-02-28 | ステッピングモータの接続構造 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1998038724A1 true WO1998038724A1 (fr) | 1998-09-03 |
Family
ID=12718382
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP1998/000322 WO1998038724A1 (fr) | 1997-02-28 | 1998-01-26 | Structure de connexion d'un moteur pas a pas |
Country Status (5)
Country | Link |
---|---|
US (1) | US5977670A (ja) |
EP (1) | EP0909011B1 (ja) |
JP (1) | JP3052306B2 (ja) |
DE (1) | DE69830879T2 (ja) |
WO (1) | WO1998038724A1 (ja) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19806118A1 (de) * | 1998-02-14 | 1999-08-19 | Bosch Gmbh Robert | Wellenantriebsvorrichtung |
JP3551885B2 (ja) * | 1999-10-27 | 2004-08-11 | 株式会社デンソー | 指針計器 |
JP5096939B2 (ja) * | 2008-01-21 | 2012-12-12 | 日本電産サンキョー株式会社 | モータ装置 |
DE102009047461A1 (de) * | 2009-12-03 | 2011-06-09 | Robert Bosch Gmbh | Elektronisch kommutierter Elektromotor mit reduzierter Störabstrahlung |
CN103378707B (zh) * | 2012-04-23 | 2017-12-19 | 德昌电机(深圳)有限公司 | 电机、线性驱动器、及使用该线性驱动器的车灯调节器 |
JP6088762B2 (ja) * | 2012-07-30 | 2017-03-01 | ミネベアミツミ株式会社 | ステッピングモータ |
CN106849484B (zh) * | 2017-02-16 | 2019-05-03 | 马宁 | 一种电机驱动式传动轮调试装置 |
US20240019686A1 (en) * | 2022-07-15 | 2024-01-18 | Mitsumi Electric Co., Ltd. | Rotary reciprocating drive actuator |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6062882U (ja) * | 1983-10-06 | 1985-05-02 | セイコーエプソン株式会社 | ステツピングモ−タの構造 |
JPH0837770A (ja) * | 1994-07-25 | 1996-02-06 | Sony Corp | 二相モータ |
JPH0974731A (ja) * | 1995-08-31 | 1997-03-18 | Minebea Co Ltd | ステッピングモータ |
Family Cites Families (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4329606A (en) * | 1979-12-10 | 1982-05-11 | General Scanning, Inc. | Electric motor construction |
JPS58115864U (ja) * | 1982-01-27 | 1983-08-08 | 三菱電機株式会社 | 車両用充電発電機 |
JPS6062882A (ja) * | 1983-09-16 | 1985-04-11 | Hitachi Maxell Ltd | 辷りモ−ド駆動の圧電モ−タ |
JP2563243B2 (ja) * | 1984-11-08 | 1996-12-11 | 松下電器産業株式会社 | ステツピングモ−タ |
JP2528848Y2 (ja) * | 1988-09-29 | 1997-03-12 | 株式会社三協精機製作所 | 外転型ブラシレスモータ |
JPH0283681U (ja) * | 1988-12-09 | 1990-06-28 | ||
JP2662449B2 (ja) * | 1990-03-30 | 1997-10-15 | 日本精機株式会社 | 指示計器 |
US5214331A (en) * | 1990-08-24 | 1993-05-25 | Nippon Densan Corporation | Lead holder for a spindle motor |
EP0474048B1 (en) * | 1990-08-27 | 1995-04-05 | Canon Kabushiki Kaisha | Stepping motor and method for driving the same |
JPH0564411A (ja) * | 1991-02-18 | 1993-03-12 | Seiko Epson Corp | Pm型ステツピングモータ |
US5247216A (en) * | 1991-12-30 | 1993-09-21 | North American Philips Corporation | Stepper motor with integrated assembly |
DE4209823A1 (de) * | 1992-03-26 | 1993-09-30 | Kienzle Uhrenfabriken Gmbh | Schrittmotor |
JPH07177720A (ja) * | 1993-12-22 | 1995-07-14 | Matsushita Electric Ind Co Ltd | ブラシレスモータ |
US5481144A (en) * | 1994-06-03 | 1996-01-02 | Seagate Technology, Inc. | Wire guide and adhesive retaining ring for disc drive spindle motor |
JPH08111971A (ja) * | 1994-10-13 | 1996-04-30 | Nippondenso Co Ltd | ステップモータ |
JPH09149590A (ja) * | 1995-11-17 | 1997-06-06 | Nippon Seiki Co Ltd | ステッピングモータ |
JPH09210735A (ja) * | 1996-01-31 | 1997-08-15 | Nippon Seiki Co Ltd | 計器本体の取付構造 |
-
1997
- 1997-02-28 JP JP9045406A patent/JP3052306B2/ja not_active Expired - Fee Related
-
1998
- 1998-01-26 EP EP98900756A patent/EP0909011B1/en not_active Expired - Lifetime
- 1998-01-26 US US09/171,491 patent/US5977670A/en not_active Expired - Fee Related
- 1998-01-26 DE DE69830879T patent/DE69830879T2/de not_active Expired - Fee Related
- 1998-01-26 WO PCT/JP1998/000322 patent/WO1998038724A1/ja active IP Right Grant
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6062882U (ja) * | 1983-10-06 | 1985-05-02 | セイコーエプソン株式会社 | ステツピングモ−タの構造 |
JPH0837770A (ja) * | 1994-07-25 | 1996-02-06 | Sony Corp | 二相モータ |
JPH0974731A (ja) * | 1995-08-31 | 1997-03-18 | Minebea Co Ltd | ステッピングモータ |
Non-Patent Citations (1)
Title |
---|
See also references of EP0909011A4 * |
Also Published As
Publication number | Publication date |
---|---|
EP0909011B1 (en) | 2005-07-20 |
EP0909011A4 (en) | 2001-02-07 |
DE69830879D1 (de) | 2005-08-25 |
US5977670A (en) | 1999-11-02 |
JPH10248233A (ja) | 1998-09-14 |
DE69830879T2 (de) | 2006-05-24 |
EP0909011A1 (en) | 1999-04-14 |
JP3052306B2 (ja) | 2000-06-12 |
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