WO2019193631A1 - Encoder, motor and method of assembling encoder - Google Patents

Encoder, motor and method of assembling encoder Download PDF

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Publication number
WO2019193631A1
WO2019193631A1 PCT/JP2018/014129 JP2018014129W WO2019193631A1 WO 2019193631 A1 WO2019193631 A1 WO 2019193631A1 JP 2018014129 W JP2018014129 W JP 2018014129W WO 2019193631 A1 WO2019193631 A1 WO 2019193631A1
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WO
WIPO (PCT)
Prior art keywords
encoder
lead wire
motor
holding member
board
Prior art date
Application number
PCT/JP2018/014129
Other languages
French (fr)
Japanese (ja)
Inventor
雅史 大熊
治之 長谷川
大輔 金森
政範 二村
琢也 野口
佐土根　俊和
文昭 土屋
Original Assignee
三菱電機株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 三菱電機株式会社 filed Critical 三菱電機株式会社
Priority to JP2020512118A priority Critical patent/JP6968265B2/en
Priority to PCT/JP2018/014129 priority patent/WO2019193631A1/en
Priority to CN201880091846.7A priority patent/CN111971531B/en
Priority to TW108109445A priority patent/TWI710751B/en
Publication of WO2019193631A1 publication Critical patent/WO2019193631A1/en

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
    • G01D5/12—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
    • G01D5/12—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means
    • G01D5/244—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing characteristics of pulses or pulse trains; generating pulses or pulse trains
    • G01D5/245—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing characteristics of pulses or pulse trains; generating pulses or pulse trains using a variable number of pulses in a train

Definitions

  • the present invention relates to an encoder that detects a rotation angle, a motor including the encoder, and an encoder assembly method.
  • the encoder that detects the rotation angle of the motor is configured by covering a disk connected to the shaft of the motor and an encoder board on which electronic parts for detecting the rotation angle of the disk are mounted with an encoder cover.
  • the encoder is required to reduce wiring and reduce the size of the wiring extending to the outside.
  • the motor lead wire and the encoder lead wire are routed together inside the encoder, and a single cable is drawn from the encoder, thereby reducing the wiring of the encoder.
  • the motor lead wire is an electric wire that transmits electric power to the motor
  • the encoder lead wire is an electric wire that transmits electric power and a signal to the encoder.
  • Patent Document 1 discloses an encoder having a structure in which a motor lead wire is connected to an encoder substrate, and a lead wire serving as a motor lead wire and an encoder lead wire is drawn out from the encoder substrate.
  • the encoder having the structure disclosed in Patent Document 1 needs to be provided with a structure in which wiring is newly routed on the outer side in the radial direction of the encoder board, leading to an enlargement of the encoder cover diameter due to the enlargement of the encoder board. That is, the encoder disclosed in Patent Document 1 has a trade-off relationship between wiring saving and miniaturization.
  • the present invention has been made in view of the above, and an object of the present invention is to obtain an encoder that can achieve both wiring saving and miniaturization.
  • the present invention provides a disk to which a shaft is connected, an encoder board provided with a rotation angle detector for detecting a rotation angle of the disk, and the encoder board as a disk.
  • Encoder substrate holding member that holds the substrate in an opposing state
  • an encoder cover that covers the encoder substrate and the encoder substrate holding member and has a lead wire outlet, a connector that is installed in the lead wire outlet, and an encoder substrate holder And a base portion on which the encoder cover is installed.
  • a defect portion is formed in at least one outer edge portion of the encoder substrate and the encoder substrate holding member. The missing portion has a shape larger than the cross-sectional shape of the lead wire that is routed through the encoder cover and connected to the connector.
  • FIG. 1 is an exploded perspective view of an encoder according to Embodiment 1 of the present invention. Sectional drawing of the encoder which concerns on Embodiment 1.
  • FIG. Enlarged view of the encoder board, encoder board holding member, and encoder bracket according to the first embodiment.
  • the flowchart which shows the flow of the assembly method of the encoder which concerns on Embodiment 1.
  • FIG. The figure which shows the state before attaching an encoder board
  • FIG. 6 is a top view showing an operation of attaching the encoder board and the encoder board holding member to the encoder bracket of the encoder according to the first embodiment.
  • the figure which shows the state which attached the encoder board
  • FIG. The perspective view which shows the state which connected the encoder lead wire to the encoder board
  • FIG. The perspective view which shows the state which fixed the encoder cover of the encoder which concerns on Embodiment 1 to the encoder bracket.
  • Sectional drawing which shows the state which fixed the encoder cover of the encoder which concerns on Embodiment 1 to the encoder bracket The perspective view which shows the state which connected the encoder lead wire and motor lead wire of the encoder which concerns on Embodiment 1 to the connector. The figure which shows the state which fixed the connector to the encoder cover of the encoder which concerns on Embodiment 1.
  • FIG. The perspective view of the encoder which concerns on Embodiment 2 of this invention. Enlarged view of the encoder board, encoder board holding member, and encoder bracket according to the second embodiment.
  • the perspective view of the encoder which concerns on Embodiment 3 of this invention Sectional drawing of the encoder which concerns on Embodiment 4 of this invention Sectional drawing of the encoder which concerns on Embodiment 5 of this invention. Sectional drawing of the motor which concerns on Embodiment 6 of this invention.
  • FIG. 1 is an exploded perspective view of an encoder according to Embodiment 1 of the present invention.
  • FIG. 2 is a cross-sectional view of the encoder according to the first embodiment.
  • FIG. 3 is an enlarged view of the encoder board, the encoder board holding member, and the encoder bracket according to the first embodiment.
  • the encoder 51 includes a disk 1a connected to the shaft 21 of the motor 20, an encoder board 1 on which an electronic component 1b forming a rotation angle detection unit that detects the rotation angle of the disk 1a is mounted, An encoder board holding member 2 that holds the board 1 facing the disk 1a, an encoder cover 3 that covers the encoder board 1 and the encoder board holding member 2, and an encoder that transmits electric power and signals to the electronic component 1b on the encoder board 1 It has a lead wire 4 and an encoder bracket 6 which is a base portion on which the encoder board holding member 2 and the encoder cover 3 are installed.
  • the disk 1a is rotatably supported by the encoder bracket 6.
  • the encoder bracket 6 is attached to the motor bracket 22 of the motor 20.
  • the encoder bracket 6 is provided with a motor lead wire inlet 11 through which the motor lead wire 5 which is an electric wire for transmitting electric power to the motor 20 is passed.
  • the motor lead wire 5 is drawn into the encoder cover 3 from the motor lead wire lead-in port 11 of the encoder bracket 6, and is drawn out of the encoder cover 3 from the lead wire outlet 3 a on the side surface of the encoder cover 3 together with the encoder lead wire 4. .
  • the motor lead wire 5 is routed from one surface side of the encoder board 1 through the notch 9 to the other surface side. In FIG. 3, the motor lead wire 5 is not shown.
  • a connector 31 is installed in the lead wire outlet 3 a on the side surface of the encoder cover 3.
  • the encoder lead wire 4 and the motor lead wire 5 are connected to the connector 31.
  • a cable 32 connected to both the encoder lead wire 4 and the motor lead wire 5 is connected to the connector 31.
  • a connector may be used for the motor lead wire inlet 11.
  • the motor lead wire inlet 11 may not have a hole shape. Further, the position of the motor lead wire inlet 11 is not limited to a specific position.
  • the connector 1c is used in the part where the encoder lead wire 4 is pulled out from the encoder substrate 1, and the encoder substrate 1 and the encoder lead wire 4 can be easily connected.
  • the encoder board holding member 2 is a component for fixing the encoder board 1 to the encoder bracket 6.
  • the encoder substrate holding member 2 can be manufactured in a complicated shape at a low cost by using a resin molded product.
  • the encoder board 1 and the encoder board holding member 2 are bonded and fixed, and the encoder bracket 6 and the encoder board holding member 2 are detachably fixed by screws 7 which are fastening members.
  • notches 8 are formed in the encoder board 1 to prevent interference with screws or screw bits of a screwdriver.
  • the notch 8 needs to be large enough to avoid interference with the screw head when the screw 7 is supplied to the fastening position along the fastening direction. In the case of supplying to the screw, it is only necessary to avoid interference with the driver bit instead of the screw head.
  • the encoder board 1 and the encoder are excluded except for the notch 8 and the notch 9 described later.
  • the gap with the cover 3 is smaller than the diameter of the motor lead wire 5.
  • the notch 9 used for positioning and phasing is formed on the encoder board 1.
  • the notch 9 is a missing portion formed in the outer edge portion of the encoder substrate 1.
  • the encoder board holding member 2 has a notch 10 used for positioning and phase alignment.
  • the notches 9 and 10 are used for positioning and phasing of the encoder board 1 or the encoder board holding member 2 and the encoder bracket 6 when the encoder board holding member 2 is fixed to the encoder bracket 6.
  • the method of aligning the phases of the notches 9 and 10 may be to provide a convex shape on the phase counter counterpart or encoder bracket 6 and engage the notches 9 and 10, or to project the assembling jig.
  • the notches 9 and 10 may be engaged in the shape.
  • the notches 9 and 10 may be used for positioning and phasing of the encoder board 1 and the encoder board holding member 2 when the encoder board 1 and the encoder board holding member 2 are fixed.
  • the notches 9 and 10 are larger than the cross-sectional shape of the motor lead wire 5.
  • the encoder 51 has the motor lead wire 5 routed around the notches 9 and 10 provided in the encoder board 1 and the encoder board holding member 2. As shown in FIG. 3, since the notch 9 of the encoder board 1, the notch 10 of the encoder board holding member 2, and the motor lead wire inlet 11 of the encoder bracket 6 are in phase, the encoder bracket The motor lead wire 5 drawn on 6 can be easily arranged in the notches 9 and 10.
  • the phase alignment is performed by providing a convex shape on the phase matching component or the encoder bracket 6, the cross-sectional shape of the convex shape is made smaller than the notches 9 and 10, and the notches 9 and 10 are arranged. If the gap is formed when the convex shape is engaged with the motor lead wire 5, the motor lead wire 5 can be routed through the gap.
  • FIG. 4 is a flowchart showing the flow of the encoder assembling method according to the first embodiment.
  • step S ⁇ b> the motor lead wire is drawn into the motor lead wire inlet 11 through the motor lead wire 5 and onto the encoder bracket 6.
  • step S ⁇ b> 2 the encoder board 1 and the encoder board holding member 2 are attached to the encoder bracket 6.
  • FIG. 5 is a diagram showing a state before the encoder board and the encoder board holding member are attached to the encoder bracket of the encoder according to the first embodiment.
  • FIG. 6 is a perspective view showing an operation of attaching the encoder board and the encoder board holding member to the encoder bracket of the encoder according to the first embodiment.
  • FIG. 7 is a top view showing an operation of attaching the encoder board and the encoder board holding member to the encoder bracket of the encoder according to the first embodiment.
  • FIG. 8 is a diagram illustrating a state where the encoder board and the encoder board holding member are attached to the encoder bracket of the encoder according to the first embodiment.
  • the encoder board holding member 2 When the encoder board 1 and the encoder board holding member 2 are attached to the encoder bracket 6, the encoder board holding member 2 in a state where the jig 80 having the convex shape 81 that engages with the notches 9 and 10 is arranged on the encoder bracket 6.
  • the encoder board 1 By arranging the encoder board 1, the encoder bracket 6, the encoder board holding member 2, and the encoder board 1 can be positioned and phased easily.
  • the encoder board 1 When the encoder board 1 is bonded to the encoder board holding member 2 together with positioning and phasing, and the encoder board holding member 2 to which the encoder board 1 is bonded and fixed is fixed to the encoder bracket 6 with the screw 7, the encoder board 1 becomes the encoder. It is fixed to the encoder bracket 6 together with the substrate holding member 2.
  • step S3 the encoder lead wire 4 is connected to the encoder board 1.
  • FIG. 9 is a perspective view showing a state in which an encoder lead wire is connected to the encoder board of the encoder according to the first embodiment. By mounting the connector 1c on the encoder board 1, the work of connecting the encoder board 1 and the encoder lead wire 4 can be easily performed.
  • step S4 the encoder lead wire 4 and the motor lead wire 5 are passed through the lead wire outlet 3a of the encoder cover 3.
  • FIG. 10 is a perspective view showing a state where the encoder lead wire and the motor lead wire are passed through the lead wire outlet of the encoder according to the first embodiment.
  • step S5 the encoder cover 3 is put on the encoder board 1 and the encoder board holding member 2.
  • step S6 the encoder cover 3 is fixed to the encoder bracket 6.
  • FIG. 11 is a perspective view showing a state in which the encoder cover of the encoder according to Embodiment 1 is fixed to the encoder bracket.
  • FIG. 12 is a cross-sectional view illustrating a state where the encoder cover of the encoder according to Embodiment 1 is fixed to the encoder bracket.
  • the gap between the encoder board 1 and the encoder cover 3 is smaller than the diameter of the motor lead wire 5, but the notch 9 is larger than the cross-sectional shape of the motor lead wire 5, so Can be arranged.
  • step S ⁇ b> 7 the encoder lead wire 4 and the motor lead wire 5 are connected to the connector 31.
  • FIG. 13 is a perspective view showing a state where the encoder lead wire and the motor lead wire of the encoder according to Embodiment 1 are connected to the connector.
  • step S ⁇ b> 8 the connector 31 is installed in the lead wire outlet 3 a and fixed to the encoder cover 3.
  • FIG. 14 is a diagram illustrating a state in which the connector is fixed to the encoder cover of the encoder according to the first embodiment. The encoder 51 is assembled by the above procedure.
  • the encoder 51 according to the first embodiment can reduce wiring by connecting the cable 32 connected to both the encoder lead wire 4 and the motor lead wire 5 to the connector 31. Further, the encoder 51 can be reduced in size by drawing the motor lead wire 5 around the notch 9 of the encoder board 1 and the notch 10 of the encoder board holding member 2. That is, the encoder 51 according to Embodiment 1 can achieve both wiring saving and size reduction.
  • the encoder 51 according to the first embodiment does not connect the motor lead wire 5 to the encoder substrate 1, the encoder substrate 1 and the motor lead wire 5 can be separated, reducing the influence of noise and ion migration. It is possible to prevent the occurrence of a short circuit in the circuit on the encoder board 1 due to the above.
  • FIG. 15 is a perspective view of an encoder according to Embodiment 2 of the present invention.
  • FIG. 16 is an enlarged view of an encoder board, an encoder board holding member, and an encoder bracket according to the second embodiment.
  • the encoder 52 according to the second embodiment is different from the encoder 51 according to the first embodiment in that the phase cutout 9 is not formed on the encoder board 1.
  • the motor lead wire 5 is routed around the notch 8 formed coaxially with the screw 7.
  • the motor lead wire 5 drawn into the encoder cover 3 from the motor lead wire lead-in port 11 is routed to the lead wire outlet 3a of the encoder cover 3 through the notch 8 portion of the encoder board 1.
  • the encoder 52 according to the second embodiment has the motor lead wire 5 disposed in the notch 8, as with the encoder 51 according to the first embodiment, both wiring saving and size reduction can be achieved.
  • the phase alignment notch 9 is not formed in the encoder board 1, the mounting space for the electronic components can be made larger than that of the encoder 51 according to the first embodiment.
  • FIG. 17 is a perspective view of an encoder according to Embodiment 3 of the present invention.
  • the lead wire outlet 3 a reaches the lower side than the encoder board 1.
  • the connector 31 is not shown in order to make the lead wire outlet 3a easy to see.
  • the notch 9 is formed.
  • the motor lead wire 5 is arranged, it is not necessary to arrange the motor lead wire 5 in the notch 9 after the encoder cover 3 is fixed to the encoder bracket 6. Therefore, after the encoder cover 3 is fixed to the encoder bracket 6, the encoder board 1 and the motor lead wire 5 can be separated from each other, reducing the influence of noise, and on the encoder board 1 due to ion migration. The occurrence of a short circuit in the circuit can be prevented.
  • the encoder 53 according to the third embodiment arranges the motor lead wire 5 in the notch 9 when the encoder cover 3 is put on the encoder board 1 and the encoder board holding member 2, and therefore the encoder 51 according to the first embodiment. As with, both wiring saving and miniaturization can be achieved.
  • FIG. 18 is a sectional view of an encoder according to Embodiment 4 of the present invention.
  • the lead wire outlet 3 a is provided below the encoder substrate 1.
  • the encoder lead wire 4 is routed from one surface side of the encoder substrate 1 to the other surface side through a notch 9 formed in the encoder substrate 1 to connect the connector 31 and the connector 1c.
  • the encoder board 1 and the encoder cover 3 are removed except for the notch 8 and the notch 9. Is smaller than the diameter of the encoder lead wire 4.
  • the encoder 54 according to the fourth embodiment can be reduced in size by drawing the encoder lead wire 4 around the notch 9 of the encoder board 1 and the notch 10 of the encoder board holding member 2. That is, the encoder 54 according to the fourth embodiment can achieve both wiring saving and miniaturization.
  • FIG. 19 is a cross-sectional view of an encoder according to Embodiment 5 of the present invention.
  • the encoder board holding member 2 surrounds the periphery of the encoder board 1, and the encoder board holding member 2 has a larger diameter than the encoder board 1.
  • the notch 9 is not formed in the encoder board 1.
  • the encoder 55 according to the fifth embodiment can firmly fix the encoder board 1 to the encoder bracket 6 because the encoder board holding member 2 surrounds the periphery of the encoder board 1. Therefore, it is suitable for use in an environment where strong vibration occurs.
  • the encoder 55 according to the fifth embodiment reduces the mounting space for electronic components on the encoder board 1 by arranging the encoder lead wire 4 and the motor lead wire 5 in the notch 10 formed in the encoder board holding member 2. Therefore, it is possible to realize wiring saving and miniaturization.
  • FIG. 6 A motor 60 according to Embodiment 6 of the present invention will be described. Portions common to the encoder 51 according to the first embodiment are denoted by the same reference numerals, and redundant description is omitted.
  • the motor 60 according to the fifth embodiment is an encoder-integrated type that includes a drive unit 62 that rotationally drives the shaft 21 and an encoder unit 61.
  • FIG. 20 is a cross-sectional view of a motor according to Embodiment 6 of the present invention.
  • the structure of the drive unit 62 is the same as that of the motor 20 to which the encoder 51 is attached in the first embodiment.
  • the structure of the encoder unit 61 is the same as that of the encoder 51 according to the first embodiment, but the encoder bracket 6 is not provided, and the encoder board holding member 2 is fixed to the motor bracket 22 instead of the encoder bracket 6. . That is, the base part of the encoder part 61 is the motor bracket 22. Further, the disk 1a is not supported by the encoder bracket 6.
  • the motor lead wire 5 is drawn into the encoder unit 61 through the motor lead wire lead-in port 23 formed in the motor bracket 22.
  • the encoder 61 of the motor 60 according to the sixth embodiment has the same basic structure as the encoder 51 according to the first embodiment, the motor 60 according to the sixth embodiment It can be considered that the encoder 51 according to the first embodiment is provided.
  • the encoder unit 61 may have the same structure as the encoders 52, 53, 54, and 55 according to any one of the second to fifth embodiments.
  • the motor 60 according to the sixth embodiment can achieve both wiring saving and size reduction of the encoder unit 61. Therefore, the size of the entire motor 60 can be reduced.
  • the configuration described in the above embodiment shows an example of the contents of the present invention, and can be combined with another known technique, and can be combined with other configurations without departing from the gist of the present invention. It is also possible to omit or change the part.

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  • General Physics & Mathematics (AREA)
  • Transmission And Conversion Of Sensor Element Output (AREA)

Abstract

Provided is an encoder (51) including a disk (1a) to which a shaft (21) is connected, an encoder substrate (1) provided with a rotation angle detection unit that detects a rotation angle of the disk (1a), an encoder substrate holding member (2) for holding the encoder substrate (1) in a state of facing the disc (1a), an encoder cover (3) which covers the encoder substrate (1) and the encoder substrate holding member (2) and in which a lead wire outlet (3a) is formed, a connector (31) disposed in the lead wire outlet (3a), and an encoder bracket (6) on which the encoder substrate holding member (2) and the encoder cover (3) are disposed, wherein missing portions are formed on the outer edge portions of the encoder substrate (1) and the encoder substrate holding member (2), and the missing portions have a shape larger than the cross-sectional shape of a motor lead wire (5) routed inside the encoder cover (3) and connected to the connector (31).

Description

エンコーダ、モータ及びエンコーダの組立方法Encoder, motor, and encoder assembly method
　本発明は、回転角を検出するエンコーダ及びこれを備えたモータ並びにエンコーダの組立方法に関する。 The present invention relates to an encoder that detects a rotation angle, a motor including the encoder, and an encoder assembly method.
　モータの回転角を検出するエンコーダは、モータのシャフトに接続される円盤と、円盤の回転角を検出する電子部品が実装されたエンコーダ基板とをエンコーダカバーで覆って構成される。エンコーダは、外部に延びる配線本数を低減する省配線化と小型化とが求められている。エンコーダを一体化したモータでは、エンコーダの内部にてモータリード線とエンコーダリード線とを引き回してまとめ、エンコーダから１本のケーブルを引き出すことによりエンコーダの省配線化を実現している。ここで、モータリード線はモータへ電力を伝える電線であり、エンコーダリード線は、エンコーダへ電力及び信号を伝える電線である。 The encoder that detects the rotation angle of the motor is configured by covering a disk connected to the shaft of the motor and an encoder board on which electronic parts for detecting the rotation angle of the disk are mounted with an encoder cover. The encoder is required to reduce wiring and reduce the size of the wiring extending to the outside. In a motor with an integrated encoder, the motor lead wire and the encoder lead wire are routed together inside the encoder, and a single cable is drawn from the encoder, thereby reducing the wiring of the encoder. Here, the motor lead wire is an electric wire that transmits electric power to the motor, and the encoder lead wire is an electric wire that transmits electric power and a signal to the encoder.
　特許文献１には、モータリード線をエンコーダ基板に接続し、モータリード線及びエンコーダリード線を兼ねるリード線をエンコーダ基板から引き出す構造のエンコーダが開示されている。 Patent Document 1 discloses an encoder having a structure in which a motor lead wire is connected to an encoder substrate, and a lead wire serving as a motor lead wire and an encoder lead wire is drawn out from the encoder substrate.
特開平８－２５１８５２号公報JP-A-8-251852
　特許文献１に開示される構造のエンコーダは、エンコーダ基板の径方向外側に新たに配線を引き回す構造を設ける必要があり、エンコーダ基板の拡大によるエンコーダカバー径の拡大を招いている。すなわち、特許文献１に開示されるエンコーダは、省配線化と小型化とがトレードオフの関係にあった。 The encoder having the structure disclosed in Patent Document 1 needs to be provided with a structure in which wiring is newly routed on the outer side in the radial direction of the encoder board, leading to an enlargement of the encoder cover diameter due to the enlargement of the encoder board. That is, the encoder disclosed in Patent Document 1 has a trade-off relationship between wiring saving and miniaturization.
　本発明は、上記に鑑みてなされたものであって、省配線化と小型化とを両立可能なエンコーダを得ることを目的とする。 The present invention has been made in view of the above, and an object of the present invention is to obtain an encoder that can achieve both wiring saving and miniaturization.
　上述した課題を解決し、目的を達成するために、本発明は、シャフトが接続される円盤と、円盤の回転角を検出する回転角検出部が設けられたエンコーダ基板と、エンコーダ基板を円盤と対向した状態で保持するエンコーダ基板保持部材と、エンコーダ基板及びエンコーダ基板保持部材を覆い、リード線取り出し口が形成されているエンコーダカバーと、リード線取り出し口に設置されるコネクタと、エンコーダ基板保持部材及びエンコーダカバーが設置されるベース部とを有する。エンコーダ基板及びエンコーダ基板保持部材の少なくとも一方の外縁部には、欠損部が形成されている。欠損部は、エンコーダカバー内を引き回されてコネクタに接続されるリード線の断面形状よりも大きい形状である。 In order to solve the above-described problems and achieve the object, the present invention provides a disk to which a shaft is connected, an encoder board provided with a rotation angle detector for detecting a rotation angle of the disk, and the encoder board as a disk. Encoder substrate holding member that holds the substrate in an opposing state, an encoder cover that covers the encoder substrate and the encoder substrate holding member and has a lead wire outlet, a connector that is installed in the lead wire outlet, and an encoder substrate holder And a base portion on which the encoder cover is installed. A defect portion is formed in at least one outer edge portion of the encoder substrate and the encoder substrate holding member. The missing portion has a shape larger than the cross-sectional shape of the lead wire that is routed through the encoder cover and connected to the connector.
　本発明によれば、省配線化と小型化とを両立したエンコーダを提供できるという効果を奏する。 According to the present invention, it is possible to provide an encoder that achieves both wiring saving and miniaturization.
本発明の実施の形態１に係るエンコーダの分解斜視図1 is an exploded perspective view of an encoder according to Embodiment 1 of the present invention. 実施の形態１に係るエンコーダの断面図Sectional drawing of the encoder which concerns on Embodiment 1. FIG. 実施の形態１に係るエンコーダ基板、エンコーダ基板保持部材及びエンコーダブラケットの拡大図Enlarged view of the encoder board, encoder board holding member, and encoder bracket according to the first embodiment. 実施の形態１に係るエンコーダの組立方法の流れを示すフローチャートThe flowchart which shows the flow of the assembly method of the encoder which concerns on Embodiment 1. FIG. 実施の形態１に係るエンコーダのエンコーダブラケットにエンコーダ基板及びエンコーダ基板保持部材を取り付ける前の状態を示す図The figure which shows the state before attaching an encoder board | substrate and an encoder board | substrate holding member to the encoder bracket of the encoder which concerns on Embodiment 1. FIG. 実施の形態１に係るエンコーダのエンコーダブラケットにエンコーダ基板及びエンコーダ基板保持部材を取り付ける作業を示す斜視図The perspective view which shows the operation | work which attaches an encoder board | substrate and an encoder board | substrate holding member to the encoder bracket of the encoder which concerns on Embodiment 1. FIG. 実施の形態１に係るエンコーダのエンコーダブラケットにエンコーダ基板及びエンコーダ基板保持部材を取り付ける作業を示す上面図FIG. 6 is a top view showing an operation of attaching the encoder board and the encoder board holding member to the encoder bracket of the encoder according to the first embodiment. 実施の形態１に係るエンコーダのエンコーダブラケットにエンコーダ基板及びエンコーダ基板保持部材を取り付けた状態を示す図The figure which shows the state which attached the encoder board | substrate and the encoder board | substrate holding member to the encoder bracket of the encoder which concerns on Embodiment 1. FIG. 実施の形態１に係るエンコーダのエンコーダ基板にエンコーダリード線を接続した状態を示す斜視図The perspective view which shows the state which connected the encoder lead wire to the encoder board | substrate of the encoder which concerns on Embodiment 1. FIG. 実施の形態１に係るエンコーダのリード線取り出し口にエンコーダリード線及びモータリード線を通した状態を示す斜視図The perspective view which shows the state which let the encoder lead wire and the motor lead wire pass to the lead wire taking-out port of the encoder which concerns on Embodiment 1. FIG. 実施の形態１に係るエンコーダのエンコーダカバーをエンコーダブラケットに固定した状態を示す斜視図The perspective view which shows the state which fixed the encoder cover of the encoder which concerns on Embodiment 1 to the encoder bracket. 実施の形態１に係るエンコーダのエンコーダカバーをエンコーダブラケットに固定した状態を示す断面図Sectional drawing which shows the state which fixed the encoder cover of the encoder which concerns on Embodiment 1 to the encoder bracket 実施の形態１に係るエンコーダのエンコーダリード線及びモータリード線をコネクタに接続した状態を示す斜視図The perspective view which shows the state which connected the encoder lead wire and motor lead wire of the encoder which concerns on Embodiment 1 to the connector. 実施の形態１に係るエンコーダのエンコーダカバーにコネクタを固定した状態を示す図The figure which shows the state which fixed the connector to the encoder cover of the encoder which concerns on Embodiment 1. FIG. 本発明の実施の形態２に係るエンコーダの斜視図The perspective view of the encoder which concerns on Embodiment 2 of this invention. 実施の形態２に係るエンコーダ基板、エンコーダ基板保持部材及びエンコーダブラケットの拡大図Enlarged view of the encoder board, encoder board holding member, and encoder bracket according to the second embodiment. 本発明の実施の形態３に係るエンコーダの斜視図The perspective view of the encoder which concerns on Embodiment 3 of this invention. 本発明の実施の形態４に係るエンコーダの断面図Sectional drawing of the encoder which concerns on Embodiment 4 of this invention 本発明の実施の形態５に係るエンコーダの断面図Sectional drawing of the encoder which concerns on Embodiment 5 of this invention. 本発明の実施の形態６に係るモータの断面図Sectional drawing of the motor which concerns on Embodiment 6 of this invention.
　以下に、本発明の実施の形態に係るエンコーダ、モータ及びエンコーダの組立方法を図面に基づいて詳細に説明する。なお、この実施の形態によりこの発明が限定されるものではない。 Hereinafter, an assembly method of an encoder, a motor, and an encoder according to an embodiment of the present invention will be described in detail based on the drawings. Note that the present invention is not limited to the embodiments.
実施の形態１．
　図１は、本発明の実施の形態１に係るエンコーダの分解斜視図である。図２は、実施の形態１に係るエンコーダの断面図である。図３は、実施の形態１に係るエンコーダ基板、エンコーダ基板保持部材及びエンコーダブラケットの拡大図である。実施の形態１に係るエンコーダ５１は、モータ２０のシャフト２１に接続される円盤１ａと、円盤１ａの回転角を検出する回転角検出部をなす電子部品１ｂが実装されたエンコーダ基板１と、エンコーダ基板１を円盤１ａと対向した状態に保持するエンコーダ基板保持部材２と、エンコーダ基板１及びエンコーダ基板保持部材２を覆うエンコーダカバー３と、エンコーダ基板１上の電子部品１ｂへ電力及び信号を伝えるエンコーダリード線４と、エンコーダ基板保持部材２及びエンコーダカバー３が設置されるベース部であるエンコーダブラケット６とを有する。 Embodiment 1 FIG.
FIG. 1 is an exploded perspective view of an encoder according to Embodiment 1 of the present invention. FIG. 2 is a cross-sectional view of the encoder according to the first embodiment. FIG. 3 is an enlarged view of the encoder board, the encoder board holding member, and the encoder bracket according to the first embodiment. The encoder 51 according to the first embodiment includes a disk 1a connected to the shaft 21 of the motor 20, an encoder board 1 on which an electronic component 1b forming a rotation angle detection unit that detects the rotation angle of the disk 1a is mounted, An encoder board holding member 2 that holds the board 1 facing the disk 1a, an encoder cover 3 that covers the encoder board 1 and the encoder board holding member 2, and an encoder that transmits electric power and signals to the electronic component 1b on the encoder board 1 It has a lead wire 4 and an encoder bracket 6 which is a base portion on which the encoder board holding member 2 and the encoder cover 3 are installed.
　円盤１ａは、エンコーダブラケット６に回転可能に支持されている。エンコーダブラケット６は、モータ２０のモータブラケット２２に取り付けられる。エンコーダブラケット６には、モータ２０へ電力を伝える電線であるモータリード線５を通すモータリード線引き込み口１１が設けられている。モータリード線５は、エンコーダブラケット６のモータリード線引き込み口１１からエンコーダカバー３内に引き込まれ、エンコーダリード線４とともにエンコーダカバー３の側面のリード線取り出し口３ａからエンコーダカバー３の外に引き出される。モータリード線５は、切欠き９を介してエンコーダ基板１の一方の面側から他方の面側へ引き回されている。なお、図３においては、モータリード線５の図示は省略している。エンコーダカバー３の側面のリード線取り出し口３ａにはコネクタ３１が設置される。エンコーダリード線４及びモータリード線５は、コネクタ３１に接続されている。コネクタ３１には、エンコーダリード線４及びモータリード線５の両方に繋がるケーブル３２が接続される。 The disk 1a is rotatably supported by the encoder bracket 6. The encoder bracket 6 is attached to the motor bracket 22 of the motor 20. The encoder bracket 6 is provided with a motor lead wire inlet 11 through which the motor lead wire 5 which is an electric wire for transmitting electric power to the motor 20 is passed. The motor lead wire 5 is drawn into the encoder cover 3 from the motor lead wire lead-in port 11 of the encoder bracket 6, and is drawn out of the encoder cover 3 from the lead wire outlet 3 a on the side surface of the encoder cover 3 together with the encoder lead wire 4. . The motor lead wire 5 is routed from one surface side of the encoder board 1 through the notch 9 to the other surface side. In FIG. 3, the motor lead wire 5 is not shown. A connector 31 is installed in the lead wire outlet 3 a on the side surface of the encoder cover 3. The encoder lead wire 4 and the motor lead wire 5 are connected to the connector 31. A cable 32 connected to both the encoder lead wire 4 and the motor lead wire 5 is connected to the connector 31.
　配線の結線を容易にするために、モータリード線引き込み口１１に、コネクタを使用してもよい。モータリード線引き込み口１１は、穴形状でなくてもよい。また、モータリード線引き込み口１１の位置は、特定の位置に限定はされない。 In order to facilitate wiring, a connector may be used for the motor lead wire inlet 11. The motor lead wire inlet 11 may not have a hole shape. Further, the position of the motor lead wire inlet 11 is not limited to a specific position.
　エンコーダ基板１からエンコーダリード線４を引き出す部分は、コネクタ１ｃが用いられており、エンコーダ基板１とエンコーダリード線４との結線は容易に行える。 The connector 1c is used in the part where the encoder lead wire 4 is pulled out from the encoder substrate 1, and the encoder substrate 1 and the encoder lead wire 4 can be easily connected.
　エンコーダ基板保持部材２は、エンコーダ基板１をエンコーダブラケット６に対し固定するための部品である。エンコーダ基板保持部材２は、樹脂成型品とすることで複雑な形状を安価に製作可能である。エンコーダ基板１とエンコーダ基板保持部材２とは接着固定されており、エンコーダブラケット６とエンコーダ基板保持部材２とは、締結部材であるねじ７によって着脱可能に固定されている。 The encoder board holding member 2 is a component for fixing the encoder board 1 to the encoder bracket 6. The encoder substrate holding member 2 can be manufactured in a complicated shape at a low cost by using a resin molded product. The encoder board 1 and the encoder board holding member 2 are bonded and fixed, and the encoder bracket 6 and the encoder board holding member 2 are detachably fixed by screws 7 which are fastening members.
　エンコーダ基板保持部材２をエンコーダブラケット６にねじ７で固定するため、エンコーダ基板１には、ねじ又はねじ締めを行うドライバのビットとの干渉を防ぐための切欠き８が形成されている。切欠き８は、ねじ７を締結方向に沿って締結位置に供給する場合には、ねじ頭との干渉を回避できる大きさである必要があるが、ねじ７を締結方向に対し横から締結箇所に供給する場合は、ねじ頭ではなくドライバのビットとの干渉を避けられればよい。また、エンコーダ基板１の電子部品の実装可能な面積を拡大するため、及びエンコーダカバー３の小型化のために、切欠き８の部分及び後述する切欠き９の部分を除き、エンコーダ基板１とエンコーダカバー３との隙間はモータリード線５の直径よりも小さくなっている。 In order to fix the encoder board holding member 2 to the encoder bracket 6 with screws 7, notches 8 are formed in the encoder board 1 to prevent interference with screws or screw bits of a screwdriver. The notch 8 needs to be large enough to avoid interference with the screw head when the screw 7 is supplied to the fastening position along the fastening direction. In the case of supplying to the screw, it is only necessary to avoid interference with the driver bit instead of the screw head. Further, in order to increase the area where the electronic components of the encoder board 1 can be mounted and to reduce the size of the encoder cover 3, the encoder board 1 and the encoder are excluded except for the notch 8 and the notch 9 described later. The gap with the cover 3 is smaller than the diameter of the motor lead wire 5.
　エンコーダ基板１は、位置決め及び位相合わせに使用する切欠き９が形成されている。切欠き９は、エンコーダ基板１の外縁部に形成された欠損部である。エンコーダ基板保持部材２は、位置決め及び位相合わせに使用する切欠き１０が形成されている。切欠き９，１０は、エンコーダ基板保持部材２をエンコーダブラケット６に固定する時に、エンコーダ基板１又はエンコーダ基板保持部材２とエンコーダブラケット６との位置決め及び位相合わせに使用される。なお、位相を合わせるとは、回転方向の位置を合わせることを意味する。切欠き９，１０の位相を合わせる方法は、位相合わせの相手となる部品又はエンコーダブラケット６に凸形状を設けて切欠き９，１０を係合させてもよいし、組立て用の治具の凸形状に切欠き９，１０を係合させてもよい。また、切欠き９，１０は、エンコーダ基板１とエンコーダ基板保持部材２とを固定するときに、エンコーダ基板１とエンコーダ基板保持部材２との位置決め及び位相合わせに使用してもよい。 The notch 9 used for positioning and phasing is formed on the encoder board 1. The notch 9 is a missing portion formed in the outer edge portion of the encoder substrate 1. The encoder board holding member 2 has a notch 10 used for positioning and phase alignment. The notches 9 and 10 are used for positioning and phasing of the encoder board 1 or the encoder board holding member 2 and the encoder bracket 6 when the encoder board holding member 2 is fixed to the encoder bracket 6. Note that to match the phase means to match the position in the rotation direction. The method of aligning the phases of the notches 9 and 10 may be to provide a convex shape on the phase counter counterpart or encoder bracket 6 and engage the notches 9 and 10, or to project the assembling jig. The notches 9 and 10 may be engaged in the shape. The notches 9 and 10 may be used for positioning and phasing of the encoder board 1 and the encoder board holding member 2 when the encoder board 1 and the encoder board holding member 2 are fixed.
　また、切欠き９，１０は、モータリード線５の断面形状よりも大きい形状である。エンコーダ５１は、エンコーダ基板１とエンコーダ基板保持部材２とに設けられた切欠き９，１０に、モータリード線５を引き回している。図３に示したように、エンコーダ基板１の切欠き９と、エンコーダ基板保持部材２の切欠き１０と、エンコーダブラケット６のモータリード線引き込み口１１とは、位相が合わされているため、エンコーダブラケット６の上に引き込んだモータリード線５は、切欠き９，１０に容易に配置できる。なお、位相合わせの相手となる部品又はエンコーダブラケット６に凸形状を設けて位相合わせを行う場合には、切欠き９，１０よりも凸形状の断面形状を小さくしておき、切欠き９，１０に凸形状を係合させた時に隙間ができるようにすれば、隙間にモータリード線５を引き回すことができる。 The notches 9 and 10 are larger than the cross-sectional shape of the motor lead wire 5. The encoder 51 has the motor lead wire 5 routed around the notches 9 and 10 provided in the encoder board 1 and the encoder board holding member 2. As shown in FIG. 3, since the notch 9 of the encoder board 1, the notch 10 of the encoder board holding member 2, and the motor lead wire inlet 11 of the encoder bracket 6 are in phase, the encoder bracket The motor lead wire 5 drawn on 6 can be easily arranged in the notches 9 and 10. When the phase alignment is performed by providing a convex shape on the phase matching component or the encoder bracket 6, the cross-sectional shape of the convex shape is made smaller than the notches 9 and 10, and the notches 9 and 10 are arranged. If the gap is formed when the convex shape is engaged with the motor lead wire 5, the motor lead wire 5 can be routed through the gap.
　実施の形態１に係るエンコーダ５１の組立方法について説明する。図４は、実施の形態１に係るエンコーダの組立方法の流れを示すフローチャートである。ステップＳ１において、モータリード線引き込み口１１にモータリード線５を通してエンコーダブラケット６の上に引き込む。ステップＳ２において、エンコーダ基板１及びエンコーダ基板保持部材２をエンコーダブラケット６に取り付ける。 A method for assembling the encoder 51 according to the first embodiment will be described. FIG. 4 is a flowchart showing the flow of the encoder assembling method according to the first embodiment. In step S <b> 1, the motor lead wire is drawn into the motor lead wire inlet 11 through the motor lead wire 5 and onto the encoder bracket 6. In step S <b> 2, the encoder board 1 and the encoder board holding member 2 are attached to the encoder bracket 6.
　図５は、実施の形態１に係るエンコーダのエンコーダブラケットにエンコーダ基板及びエンコーダ基板保持部材を取り付ける前の状態を示す図である。図６は、実施の形態１に係るエンコーダのエンコーダブラケットにエンコーダ基板及びエンコーダ基板保持部材を取り付ける作業を示す斜視図である。図７は、実施の形態１に係るエンコーダのエンコーダブラケットにエンコーダ基板及びエンコーダ基板保持部材を取り付ける作業を示す上面図である。図８は、実施の形態１に係るエンコーダのエンコーダブラケットにエンコーダ基板及びエンコーダ基板保持部材を取り付けた状態を示す図である。エンコーダ基板１及びエンコーダ基板保持部材２をエンコーダブラケット６に取り付ける際に、切欠き９，１０に係合する凸形状８１を有する治具８０をエンコーダブラケット６上に配置した状態でエンコーダ基板保持部材２及びエンコーダ基板１を配置することにより、エンコーダブラケット６、エンコーダ基板保持部材２及びエンコーダ基板１の位置決め及び位相合わせを容易に行える。位置決め及び位相合わせとともにエンコーダ基板１をエンコーダ基板保持部材２に接着することにより、エンコーダ基板１が接着固定されたエンコーダ基板保持部材２をねじ７でエンコーダブラケット６に固定すれば、エンコーダ基板１がエンコーダ基板保持部材２とともにエンコーダブラケット６に固定される。 FIG. 5 is a diagram showing a state before the encoder board and the encoder board holding member are attached to the encoder bracket of the encoder according to the first embodiment. FIG. 6 is a perspective view showing an operation of attaching the encoder board and the encoder board holding member to the encoder bracket of the encoder according to the first embodiment. FIG. 7 is a top view showing an operation of attaching the encoder board and the encoder board holding member to the encoder bracket of the encoder according to the first embodiment. FIG. 8 is a diagram illustrating a state where the encoder board and the encoder board holding member are attached to the encoder bracket of the encoder according to the first embodiment. When the encoder board 1 and the encoder board holding member 2 are attached to the encoder bracket 6, the encoder board holding member 2 in a state where the jig 80 having the convex shape 81 that engages with the notches 9 and 10 is arranged on the encoder bracket 6. By arranging the encoder board 1, the encoder bracket 6, the encoder board holding member 2, and the encoder board 1 can be positioned and phased easily. When the encoder board 1 is bonded to the encoder board holding member 2 together with positioning and phasing, and the encoder board holding member 2 to which the encoder board 1 is bonded and fixed is fixed to the encoder bracket 6 with the screw 7, the encoder board 1 becomes the encoder. It is fixed to the encoder bracket 6 together with the substrate holding member 2.
　ステップＳ３において、エンコーダ基板１にエンコーダリード線４を接続する。図９は、実施の形態１に係るエンコーダのエンコーダ基板にエンコーダリード線を接続した状態を示す斜視図である。エンコーダ基板１にコネクタ１ｃを実装することにより、エンコーダ基板１とエンコーダリード線４とを接続する作業を容易に行える。ステップＳ４において、エンコーダカバー３のリード線取り出し口３ａにエンコーダリード線４及びモータリード線５を通す。図１０は、実施の形態１に係るエンコーダのリード線取り出し口にエンコーダリード線及びモータリード線を通した状態を示す斜視図である。 In step S3, the encoder lead wire 4 is connected to the encoder board 1. FIG. 9 is a perspective view showing a state in which an encoder lead wire is connected to the encoder board of the encoder according to the first embodiment. By mounting the connector 1c on the encoder board 1, the work of connecting the encoder board 1 and the encoder lead wire 4 can be easily performed. In step S4, the encoder lead wire 4 and the motor lead wire 5 are passed through the lead wire outlet 3a of the encoder cover 3. FIG. 10 is a perspective view showing a state where the encoder lead wire and the motor lead wire are passed through the lead wire outlet of the encoder according to the first embodiment.
　ステップＳ５において、エンコーダカバー３を、エンコーダ基板１及びエンコーダ基板保持部材２に被せる。ステップＳ６において、エンコーダカバー３をエンコーダブラケット６に固定する。図１１は、実施の形態１に係るエンコーダのエンコーダカバーをエンコーダブラケットに固定した状態を示す斜視図である。図１２は、実施の形態１に係るエンコーダのエンコーダカバーをエンコーダブラケットに固定した状態を示す断面図である。エンコーダ基板１とエンコーダカバー３との隙間はモータリード線５の直径よりも小さいが、切欠き９は、モータリード線５の断面形状よりも大きい形状であるため、切欠き９にモータリード線５を配置することができる。ステップＳ７において、エンコーダリード線４及びモータリード線５をコネクタ３１に接続する。図１３は、実施の形態１に係るエンコーダのエンコーダリード線及びモータリード線をコネクタに接続した状態を示す斜視図である。ステップＳ８において、リード線取り出し口３ａにコネクタ３１を設置し、エンコーダカバー３に固定する。図１４は、実施の形態１に係るエンコーダのエンコーダカバーにコネクタを固定した状態を示す図である。以上の手順によって、エンコーダ５１が組み立てられる。 In step S5, the encoder cover 3 is put on the encoder board 1 and the encoder board holding member 2. In step S6, the encoder cover 3 is fixed to the encoder bracket 6. FIG. 11 is a perspective view showing a state in which the encoder cover of the encoder according to Embodiment 1 is fixed to the encoder bracket. FIG. 12 is a cross-sectional view illustrating a state where the encoder cover of the encoder according to Embodiment 1 is fixed to the encoder bracket. The gap between the encoder board 1 and the encoder cover 3 is smaller than the diameter of the motor lead wire 5, but the notch 9 is larger than the cross-sectional shape of the motor lead wire 5, so Can be arranged. In step S <b> 7, the encoder lead wire 4 and the motor lead wire 5 are connected to the connector 31. FIG. 13 is a perspective view showing a state where the encoder lead wire and the motor lead wire of the encoder according to Embodiment 1 are connected to the connector. In step S <b> 8, the connector 31 is installed in the lead wire outlet 3 a and fixed to the encoder cover 3. FIG. 14 is a diagram illustrating a state in which the connector is fixed to the encoder cover of the encoder according to the first embodiment. The encoder 51 is assembled by the above procedure.
　実施の形態１に係るエンコーダ５１は、エンコーダリード線４及びモータリード線５の両方に接続されるケーブル３２をコネクタ３１に接続することで、省配線化を図ることができる。また、エンコーダ基板１の切欠き９及びエンコーダ基板保持部材２の切欠き１０の部分にモータリード線５を引き回すことにより、エンコーダ５１の小型化を図れる。すなわち、実施の形態１に係るエンコーダ５１は、省配線化と小型化とを両立できる。 The encoder 51 according to the first embodiment can reduce wiring by connecting the cable 32 connected to both the encoder lead wire 4 and the motor lead wire 5 to the connector 31. Further, the encoder 51 can be reduced in size by drawing the motor lead wire 5 around the notch 9 of the encoder board 1 and the notch 10 of the encoder board holding member 2. That is, the encoder 51 according to Embodiment 1 can achieve both wiring saving and size reduction.
　実施の形態１に係るエンコーダ５１は、モータリード線５をエンコーダ基板１に接続しないため、エンコーダ基板１とモータリード線５とを離すことが可能であり、ノイズの影響を低減するとともに、イオンマイグレーションに起因するエンコーダ基板１上の回路における短絡の発生を防ぐことができる。 Since the encoder 51 according to the first embodiment does not connect the motor lead wire 5 to the encoder substrate 1, the encoder substrate 1 and the motor lead wire 5 can be separated, reducing the influence of noise and ion migration. It is possible to prevent the occurrence of a short circuit in the circuit on the encoder board 1 due to the above.
実施の形態２．
　本発明の実施の形態２に係るエンコーダ５２について説明する。なお、実施の形態１に係るエンコーダ５１と共通する部分には同じ符号を付して重複する説明は省略する。図１５は、本発明の実施の形態２に係るエンコーダの斜視図である。図１６は、実施の形態２に係るエンコーダ基板、エンコーダ基板保持部材及びエンコーダブラケットの拡大図である。実施の形態２に係るエンコーダ５２は、エンコーダ基板１に位相合わせ用の切欠き９が形成されていない点で実施の形態１に係るエンコーダ５１と相違する。 Embodiment 2. FIG.
An encoder 52 according to Embodiment 2 of the present invention will be described. In addition, the same code | symbol is attached | subjected to the part which is common in the encoder 51 which concerns on Embodiment 1, and the overlapping description is abbreviate | omitted. FIG. 15 is a perspective view of an encoder according to Embodiment 2 of the present invention. FIG. 16 is an enlarged view of an encoder board, an encoder board holding member, and an encoder bracket according to the second embodiment. The encoder 52 according to the second embodiment is different from the encoder 51 according to the first embodiment in that the phase cutout 9 is not formed on the encoder board 1.
　実施の形態２に係るエンコーダ５２において、ねじ７と同軸に形成されている切欠き８にモータリード線５を引き回している。 In the encoder 52 according to the second embodiment, the motor lead wire 5 is routed around the notch 8 formed coaxially with the screw 7.
　モータリード線引き込み口１１からエンコーダカバー３内に引き込まれたモータリード線５は、エンコーダ基板１の切欠き８の部分を介してエンコーダカバー３のリード線取り出し口３ａまで引き回されている。 The motor lead wire 5 drawn into the encoder cover 3 from the motor lead wire lead-in port 11 is routed to the lead wire outlet 3a of the encoder cover 3 through the notch 8 portion of the encoder board 1.
　実施の形態２に係るエンコーダ５２は、切欠き８にモータリード線５を配置しているため、実施の形態１に係るエンコーダ５１と同様に、省配線化と小型化とを両立できる。また、エンコーダ基板１に位相合わせ用の切欠き９を形成しないため、実施の形態１に係るエンコーダ５１よりも電子部品の実装スペースを大きくとることができる。 Since the encoder 52 according to the second embodiment has the motor lead wire 5 disposed in the notch 8, as with the encoder 51 according to the first embodiment, both wiring saving and size reduction can be achieved. In addition, since the phase alignment notch 9 is not formed in the encoder board 1, the mounting space for the electronic components can be made larger than that of the encoder 51 according to the first embodiment.
実施の形態３．
　本発明の実施の形態３に係るエンコーダ５３について説明する。なお、実施の形態１に係るエンコーダ５１と共通する部分には同じ符号を付し、重複する説明は省略する。図１７は、本発明の実施の形態３に係るエンコーダの斜視図である。実施の形態３に係るエンコーダ５３は、リード線取り出し口３ａがエンコーダ基板１よりも下側まで達している。なお、図１７では、リード線取り出し口３ａを見やすくするためにコネクタ３１の図示は省略している。 Embodiment 3 FIG.
An encoder 53 according to Embodiment 3 of the present invention will be described. In addition, the same code | symbol is attached | subjected to the part which is common in the encoder 51 which concerns on Embodiment 1, and the overlapping description is abbreviate | omitted. FIG. 17 is a perspective view of an encoder according to Embodiment 3 of the present invention. In the encoder 53 according to the third embodiment, the lead wire outlet 3 a reaches the lower side than the encoder board 1. In FIG. 17, the connector 31 is not shown in order to make the lead wire outlet 3a easy to see.
　実施の形態３に係るエンコーダ５３は、リード線取り出し口３ａがエンコーダ基板１よりも下まで達しているため、エンコーダカバー３をエンコーダ基板１及びエンコーダ基板保持部材２に被せる際には切欠き９にモータリード線５を配置するが、エンコーダカバー３をエンコーダブラケット６に固定した後は、切欠き９にモータリード線５を配置する必要がない。よって、エンコーダカバー３をエンコーダブラケット６に固定した後は、エンコーダ基板１とモータリード線５とを離すことが可能であり、ノイズの影響を低減するとともに、イオンマイグレーションに起因するエンコーダ基板１上の回路における短絡の発生を防ぐことができる。 In the encoder 53 according to the third embodiment, since the lead wire outlet 3a reaches below the encoder board 1, when the encoder cover 3 is put on the encoder board 1 and the encoder board holding member 2, the notch 9 is formed. Although the motor lead wire 5 is arranged, it is not necessary to arrange the motor lead wire 5 in the notch 9 after the encoder cover 3 is fixed to the encoder bracket 6. Therefore, after the encoder cover 3 is fixed to the encoder bracket 6, the encoder board 1 and the motor lead wire 5 can be separated from each other, reducing the influence of noise, and on the encoder board 1 due to ion migration. The occurrence of a short circuit in the circuit can be prevented.
　実施の形態３に係るエンコーダ５３は、エンコーダカバー３をエンコーダ基板１及びエンコーダ基板保持部材２に被せる際には、切欠き９にモータリード線５を配置するため、実施の形態１に係るエンコーダ５１と同様に、省配線化と小型化とを両立できる。 The encoder 53 according to the third embodiment arranges the motor lead wire 5 in the notch 9 when the encoder cover 3 is put on the encoder board 1 and the encoder board holding member 2, and therefore the encoder 51 according to the first embodiment. As with, both wiring saving and miniaturization can be achieved.
実施の形態４．
　本発明の実施の形態４に係るエンコーダ５４について説明する。なお、実施の形態１に係るエンコーダ５１と共通する部分には同じ符号を付し、重複する説明は省略する。図１８は、本発明の実施の形態４に係るエンコーダの断面図である。実施の形態４に係るエンコーダ５４は、リード線取り出し口３ａが、エンコーダ基板１よりも下方に設けられている。エンコーダリード線４は、エンコーダ基板１に形成された切欠き９を介してエンコーダ基板１の一方の面側から他方の面側に引き回され、コネクタ３１とコネクタ１ｃとを接続している。また、エンコーダ基板１の電子部品の実装可能な面積を拡大するため、及びエンコーダカバー３の小型化のために、切欠き８の部分及び切欠き９の部分を除き、エンコーダ基板１とエンコーダカバー３との隙間は、エンコーダリード線４の直径よりも小さくなっている。 Embodiment 4 FIG.
An encoder 54 according to Embodiment 4 of the present invention will be described. In addition, the same code | symbol is attached | subjected to the part which is common in the encoder 51 which concerns on Embodiment 1, and the overlapping description is abbreviate | omitted. FIG. 18 is a sectional view of an encoder according to Embodiment 4 of the present invention. In the encoder 54 according to the fourth embodiment, the lead wire outlet 3 a is provided below the encoder substrate 1. The encoder lead wire 4 is routed from one surface side of the encoder substrate 1 to the other surface side through a notch 9 formed in the encoder substrate 1 to connect the connector 31 and the connector 1c. Further, in order to increase the mountable area of the electronic components of the encoder board 1 and to reduce the size of the encoder cover 3, the encoder board 1 and the encoder cover 3 are removed except for the notch 8 and the notch 9. Is smaller than the diameter of the encoder lead wire 4.
　実施の形態４に係るエンコーダ５４は、エンコーダ基板１の切欠き９及びエンコーダ基板保持部材２の切欠き１０の部分にエンコーダリード線４を引き回すことにより、小型化を図れる。すなわち、実施の形態４に係るエンコーダ５４は、省配線化と小型化とを両立できる。 The encoder 54 according to the fourth embodiment can be reduced in size by drawing the encoder lead wire 4 around the notch 9 of the encoder board 1 and the notch 10 of the encoder board holding member 2. That is, the encoder 54 according to the fourth embodiment can achieve both wiring saving and miniaturization.
実施の形態５．
　本発明の実施の形態５に係るエンコーダ５５について説明する。なお、実施の形態１に係るエンコーダ５１と共通する部分には同じ符号を付し、重複する説明は省略する。図１９は、本発明の実施の形態５に係るエンコーダの断面図である。実施の形態５に係るエンコーダ５５は、エンコーダ基板保持部材２がエンコーダ基板１の周縁を囲っており、エンコーダ基板保持部材２は、エンコーダ基板１よりも大径となっている。実施の形態１に係るエンコーダ５１とは異なり、エンコーダ基板１に切欠き９は形成されていない。 Embodiment 5. FIG.
An encoder 55 according to Embodiment 5 of the present invention will be described. In addition, the same code | symbol is attached | subjected to the part which is common in the encoder 51 which concerns on Embodiment 1, and the overlapping description is abbreviate | omitted. FIG. 19 is a cross-sectional view of an encoder according to Embodiment 5 of the present invention. In the encoder 55 according to the fifth embodiment, the encoder board holding member 2 surrounds the periphery of the encoder board 1, and the encoder board holding member 2 has a larger diameter than the encoder board 1. Unlike the encoder 51 according to the first embodiment, the notch 9 is not formed in the encoder board 1.
　実施の形態５に係るエンコーダ５５は、エンコーダ基板保持部材２がエンコーダ基板１の周縁を囲っているため、エンコーダ基板１をエンコーダブラケット６に強固に固定できる。したがって、強い振動が発生する環境下での使用に適している。 The encoder 55 according to the fifth embodiment can firmly fix the encoder board 1 to the encoder bracket 6 because the encoder board holding member 2 surrounds the periphery of the encoder board 1. Therefore, it is suitable for use in an environment where strong vibration occurs.
　実施の形態５に係るエンコーダ５５は、エンコーダ基板保持部材２に形成された切欠き１０にエンコーダリード線４及びモータリード線５を配置することにより、エンコーダ基板１上の電子部品の実装スペースを減らすことなく、省配線化及び小型化を実現できる。 The encoder 55 according to the fifth embodiment reduces the mounting space for electronic components on the encoder board 1 by arranging the encoder lead wire 4 and the motor lead wire 5 in the notch 10 formed in the encoder board holding member 2. Therefore, it is possible to realize wiring saving and miniaturization.
実施の形態６．
　本発明の実施の形態６に係るモータ６０について説明する。実施の形態１に係るエンコーダ５１と共通する部分には同じ符号を付し、重複する説明は省略する。実施の形態５に係るモータ６０は、シャフト２１を回転駆動する駆動部６２とエンコーダ部６１とを備えたエンコーダ一体型である。図２０は、本発明の実施の形態６に係るモータの断面図である。駆動部６２の構造は、実施の形態１においてエンコーダ５１を取り付けたモータ２０と同様である。エンコーダ部６１の構造は、実施の形態１に係るエンコーダ５１と同様であるが、エンコーダブラケット６は備えておらず、エンコーダ基板保持部材２は、エンコーダブラケット６ではなくモータブラケット２２に固定されている。すなわち、エンコーダ部６１のベース部はモータブラケット２２である。また、円盤１ａはエンコーダブラケット６に支持されてはいない。モータリード線５は、モータブラケット２２に形成されているモータリード線引き込み口２３を通じてエンコーダ部６１に引き込まれている。 Embodiment 6 FIG.
A motor 60 according to Embodiment 6 of the present invention will be described. Portions common to the encoder 51 according to the first embodiment are denoted by the same reference numerals, and redundant description is omitted. The motor 60 according to the fifth embodiment is an encoder-integrated type that includes a drive unit 62 that rotationally drives the shaft 21 and an encoder unit 61. FIG. 20 is a cross-sectional view of a motor according to Embodiment 6 of the present invention. The structure of the drive unit 62 is the same as that of the motor 20 to which the encoder 51 is attached in the first embodiment. The structure of the encoder unit 61 is the same as that of the encoder 51 according to the first embodiment, but the encoder bracket 6 is not provided, and the encoder board holding member 2 is fixed to the motor bracket 22 instead of the encoder bracket 6. . That is, the base part of the encoder part 61 is the motor bracket 22. Further, the disk 1a is not supported by the encoder bracket 6. The motor lead wire 5 is drawn into the encoder unit 61 through the motor lead wire lead-in port 23 formed in the motor bracket 22.
　上記のように、実施の形態６に係るモータ６０のエンコーダ部６１は、実施の形態１に係るエンコーダ５１と基本的な構造が同じであるため、実施の形態６に係るモータ６０は、実施の形態１に係るエンコーダ５１を備えているとみなすことができる。なお、エンコーダ部６１は、実施の形態２から実施の形態５のいずれかに係るエンコーダ５２，５３，５４，５５と同様の構造であってもよい。 As described above, since the encoder 61 of the motor 60 according to the sixth embodiment has the same basic structure as the encoder 51 according to the first embodiment, the motor 60 according to the sixth embodiment It can be considered that the encoder 51 according to the first embodiment is provided. The encoder unit 61 may have the same structure as the encoders 52, 53, 54, and 55 according to any one of the second to fifth embodiments.
　実施の形態６に係るモータ６０は、エンコーダ部６１の省配線化及び小型化を両立することができる。したがって、モータ６０全体の小型化を図ることができる。 The motor 60 according to the sixth embodiment can achieve both wiring saving and size reduction of the encoder unit 61. Therefore, the size of the entire motor 60 can be reduced.
　以上の実施の形態に示した構成は、本発明の内容の一例を示すものであり、別の公知の技術と組み合わせることも可能であるし、本発明の要旨を逸脱しない範囲で、構成の一部を省略、変更することも可能である。 The configuration described in the above embodiment shows an example of the contents of the present invention, and can be combined with another known technique, and can be combined with other configurations without departing from the gist of the present invention. It is also possible to omit or change the part.
　１　エンコーダ基板、１ａ　円盤、１ｂ　電子部品、１ｃ，３１　コネクタ、２　エンコーダ基板保持部材、３　エンコーダカバー、３ａ　リード線取り出し口、４　エンコーダリード線、５　モータリード線、６　エンコーダブラケット、７　ねじ、８，９，１０　切欠き、１１，２３　モータリード線引き込み口、２０，６０　モータ、２１　シャフト、２２　モータブラケット、３２　ケーブル、５１，５２，５３，５４，５５　エンコーダ、６１　エンコーダ部、６２　駆動部、８０　治具、８１　凸形状。 1 encoder board, 1a disk, 1b electronic component, 1c, 31 connector, 2 encoder board holding member, 3 encoder cover, 3a lead wire outlet, 4 encoder lead wire, 5 motor lead wire, 6 encoder bracket, 7 screw, 8 , 9, 10 notches, 11, 23 motor lead wire inlets, 20, 60 motors, 21 shafts, 22 motor brackets, 32 cables, 51, 52, 53, 54, 55 encoders, 61 encoder units, 62 drive units, 80 jig, 81 convex shape.

Claims (11)

  1. 　シャフトが接続される円盤と、
    　前記円盤の回転角を検出する回転角検出部が設けられたエンコーダ基板と、
    　前記エンコーダ基板を前記円盤と対向した状態で保持するエンコーダ基板保持部材と、
    　前記エンコーダ基板及び前記エンコーダ基板保持部材を覆い、リード線取り出し口が形成されているエンコーダカバーと、
    　前記リード線取り出し口に設置されるコネクタと、
    　前記エンコーダ基板保持部材及び前記エンコーダカバーが設置されるベース部とを有し、
    　前記エンコーダ基板及び前記エンコーダ基板保持部材の少なくとも一方の外縁部には、欠損部が形成されており、
    　前記欠損部は、前記エンコーダカバー内を引き回されて前記コネクタに接続されるリード線の断面形状よりも大きい形状であることを特徴とするエンコーダ。     A disk to which the shaft is connected;
    An encoder board provided with a rotation angle detector for detecting the rotation angle of the disk;
    An encoder board holding member that holds the encoder board in a state of facing the disk;
    An encoder cover that covers the encoder board and the encoder board holding member and has a lead wire outlet;
    A connector installed at the lead wire outlet;
    A base portion on which the encoder board holding member and the encoder cover are installed;
    At least one outer edge part of the encoder board and the encoder board holding member is formed with a missing part,
    The encoder is characterized in that the missing portion has a shape larger than a cross-sectional shape of a lead wire that is routed through the encoder cover and connected to the connector.
  2. 　前記リード線は、前記欠損部を介して前記エンコーダ基板の一方の面側から他方の面側へ引き回されていることを特徴とする請求項１に記載のエンコーダ。 2. The encoder according to claim 1, wherein the lead wire is routed from one surface side of the encoder substrate to the other surface side through the defective portion.
  3. 　前記欠損部は、前記エンコーダ基板及び前記エンコーダ基板保持部材の両方に形成されており、
    　前記エンコーダ基板の前記欠損部と、前記エンコーダ基板保持部材の前記欠損部とは、端部の位相が揃っていることを特徴とする請求項１又は２に記載のエンコーダ。     The missing portion is formed in both the encoder board and the encoder board holding member,
    The encoder according to claim 1, wherein the missing portion of the encoder board and the missing portion of the encoder board holding member are in phase with each other.
  4. 　前記エンコーダ基板保持部材を前記ベース部に固定する締結部材を有し、前記欠損部は、前記締結部材の取付位置と同じ位相の箇所に形成されていることを特徴とする請求項１又は２に記載のエンコーダ。 It has a fastening member which fixes the said encoder board | substrate holding member to the said base part, The said defect | deletion part is formed in the location of the same phase as the attachment position of the said fastening member. The described encoder.
  5. 　前記リード線取り出し口は、前記欠損部に向かい合う位置に形成されていることを特徴とする請求項１から４のいずれか１項に記載のエンコーダ。 The encoder according to any one of claims 1 to 4, wherein the lead wire outlet is formed at a position facing the defect portion.
  6. 　前記リード線は、前記エンコーダ基板上の前記回転角検出部へ電力及び信号を伝えるエンコーダリード線であることを特徴とする請求項１から５のいずれか１項に記載のエンコーダ。 The encoder according to any one of claims 1 to 5, wherein the lead wire is an encoder lead wire that transmits electric power and a signal to the rotation angle detection unit on the encoder board.
  7. 　前記リード線は、前記シャフトを回転駆動するモータに電力を伝えるモータリード線であり、
    　前記ベース部は、前記モータリード線を通すモータリード線引き込み口が形成されており、
    　前記モータリード線は、前記モータリード線引き込み口を通じて前記エンコーダカバー内に引き込まれることを特徴とする請求項１から５のいずれか１項に記載のエンコーダ。     The lead wire is a motor lead wire that transmits electric power to a motor that rotationally drives the shaft,
    The base portion is formed with a motor lead wire inlet through which the motor lead wire is passed,
    The encoder according to any one of claims 1 to 5, wherein the motor lead wire is drawn into the encoder cover through the motor lead wire lead-in port.
  8. 　請求項１から５のいずれか１項に記載のエンコーダを用いたエンコーダ部と、前記シャフトを回転駆動する駆動部とを有するモータであって、
    　前記リード線は、前記駆動部に電力を伝えるモータリード線であり、
    　前記ベース部は、前記シャフトを囲むモータブラケットであり、前記モータリード線を通すモータリード線引き込み口が形成されており、
    　前記モータリード線は、前記モータリード線引き込み口を通じて前記エンコーダカバー内に引き込まれていることを特徴とするモータ。     A motor having an encoder unit using the encoder according to any one of claims 1 to 5 and a drive unit that rotationally drives the shaft,
    The lead wire is a motor lead wire that transmits electric power to the drive unit,
    The base portion is a motor bracket surrounding the shaft, and a motor lead wire inlet through which the motor lead wire is passed is formed.
    The motor lead wire is drawn into the encoder cover through the motor lead wire lead-in port.
  9. 　少なくとも前記エンコーダ基板保持部材に前記欠損部が形成されており、
    　前記モータリード線引き込み口と、前記エンコーダ基板保持部材の前記欠損部とは、同じ位相の箇所に形成されていることを特徴とする請求項８に記載のモータ。     At least the missing portion is formed in the encoder substrate holding member,
    The motor according to claim 8, wherein the motor lead wire inlet and the missing portion of the encoder board holding member are formed at the same phase.
  10. 　モータのシャフトに接続される円盤と、前記円盤の回転角を検出する回転角検出部が設けられたエンコーダ基板と、前記エンコーダ基板を前記円盤と対向した状態で保持するエンコーダ基板保持部材と、前記エンコーダ基板及び前記エンコーダ基板保持部材を覆い、リード線取り出し口が形成されているエンコーダカバーと、前記リード線取り出し口に設置されるコネクタと、前記エンコーダ基板保持部材及び前記エンコーダカバーが設置されるベース部とを有するエンコーダの組立方法であって、
    　前記モータに電力を伝えるモータリード線を前記ベース部の上に引き込む工程と、
    　前記エンコーダ基板及び前記エンコーダ基板保持部材を前記ベース部に取り付ける工程と、
    　前記回転角検出部に電力及び信号を供給するエンコーダリード線を前記エンコーダ基板に接続する工程と、
    　前記エンコーダリード線及び前記モータリード線を前記リード線取り出し口に通す工程と、
    　前記エンコーダカバーを前記エンコーダ基板及び前記エンコーダ基板保持部材に被せる工程と、
    　前記エンコーダカバーを前記ベース部に固定する工程と、
    　前記エンコーダリード線及び前記モータリード線を前記コネクタに接続する工程と、
    　前記リード線取り出し口に前記コネクタを設置する工程と、を有し、
    　前記エンコーダカバーを前記エンコーダ基板及び前記エンコーダ基板保持部材に被せる工程では、前記エンコーダ基板及び前記エンコーダ基板保持部材の少なくとも一方の外縁部に形成された欠損部に前記モータリード線又は前記エンコーダリード線を配置することを特徴とするエンコーダの組立方法。     A disk connected to the shaft of the motor, an encoder board provided with a rotation angle detector for detecting a rotation angle of the disk, an encoder board holding member that holds the encoder board in a state of facing the disk, and An encoder cover that covers the encoder board and the encoder board holding member and has a lead wire outlet, a connector installed in the lead wire outlet, and a base on which the encoder board holding member and the encoder cover are installed And an encoder assembly method comprising:
    Drawing a motor lead wire for transmitting electric power to the motor onto the base portion;
    Attaching the encoder board and the encoder board holding member to the base part;
    Connecting an encoder lead wire for supplying power and signals to the rotation angle detector to the encoder board;
    Passing the encoder lead wire and the motor lead wire through the lead wire outlet;
    Covering the encoder cover on the encoder board and the encoder board holding member;
    Fixing the encoder cover to the base portion;
    Connecting the encoder lead wire and the motor lead wire to the connector;
    Installing the connector at the lead wire outlet,
    In the step of covering the encoder cover and the encoder substrate holding member with the encoder cover, the motor lead wire or the encoder lead wire is attached to a defective portion formed on at least one outer edge portion of the encoder substrate and the encoder substrate holding member. A method for assembling an encoder, comprising arranging the encoders.
  11. 　少なくとも前記エンコーダ基板に前記欠損部を形成し、
    　前記エンコーダカバーをベース部に固定する工程では、前記欠損部と前記リード線取り出し口とを対向させて前記エンコーダカバーを前記ベース部に固定したのち、前記エンコーダ基板の前記欠損部から前記モータリード線を取り出すことを特徴とする請求項１０に記載のエンコーダの組立方法。     Forming at least the defect in the encoder substrate;
    In the step of fixing the encoder cover to the base portion, the missing portion and the lead wire outlet are opposed to each other, the encoder cover is fixed to the base portion, and then the motor lead wire is moved from the missing portion of the encoder board. The encoder assembly method according to claim 10, wherein the encoder is taken out.
PCT/JP2018/014129 2018-04-02 2018-04-02 Encoder, motor and method of assembling encoder WO2019193631A1 (en)

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