TWI298783B - Magnetic encoder - Google Patents

Magnetic encoder Download PDF

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Publication number
TWI298783B
TWI298783B TW095108095A TW95108095A TWI298783B TW I298783 B TWI298783 B TW I298783B TW 095108095 A TW095108095 A TW 095108095A TW 95108095 A TW95108095 A TW 95108095A TW I298783 B TWI298783 B TW I298783B
Authority
TW
Taiwan
Prior art keywords
encoder
magnet
processing unit
magnetic
main body
Prior art date
Application number
TW095108095A
Other languages
Chinese (zh)
Other versions
TW200718922A (en
Inventor
Katsuhiro Hashimoto
Satoshi Yanagawa
Yuzo Urasaki
Original Assignee
Koyo Electronics Ind Co
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Filing date
Publication date
Application filed by Koyo Electronics Ind Co filed Critical Koyo Electronics Ind Co
Publication of TW200718922A publication Critical patent/TW200718922A/en
Application granted granted Critical
Publication of TWI298783B publication Critical patent/TWI298783B/en

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Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00Details of, or arrangements associated with, antennas
    • H01Q1/12Supports; Mounting means
    • H01Q1/22Supports; Mounting means by structural association with other equipment or articles
    • H01Q1/24Supports; Mounting means by structural association with other equipment or articles with receiving set
    • H01Q1/241Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM
    • H01Q1/246Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for base stations
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B7/00Radio transmission systems, i.e. using radiation field
    • H04B7/14Relay systems
    • H04B7/15Active relay systems
    • H04B7/155Ground-based stations

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Transmission And Conversion Of Sensor Element Output (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)

Description

1298783 九、發明說明: 【發明所屬之技術領域】 本發明係關於例如使用於多關節機器 旋轉角檢測、汽車之方向盤的位置檢測 關即的 馬達(brushless DC motor)之#制& |扪 …、刷式直流 【先前技術】 編碼器。 編碼器有衫性與磁性,制是光學 方式支撐在端部安裝有旋轉二 =體,在錢體的外周面形成有溝槽,並鑲 環車 :載有將該殼體嵌人外罩以保持氣密性(未發^ 6己载有该習知技術的刊物)。 【發明内容】 (發明所欲解決之課題) =是’前述之習知編碼器’必須在殼體進行溝槽加 因r需花費時間在溝槽加工,此外,也需要0環之 因此會導致成本上升。此外,由於殼體的外周 面猎由外罩所覆蓋,因此無法確認0環是否已裝入溝槽。 此外,如前所述由於殼體需要溝槽,因此會使殼體之高度 尺寸Ή,隨著高度尺寸之變長,外罩尺寸也變長,而使 編碼器的高度尺寸變長。 本發明係為解決前述課題㈣創者,目的在提供—種 不僅可進一步鈿小外型尺寸,而且即使不使用。環也能夠 確保防水性,並降低成本的磁性編碼器。 (解決課題之手段) 317954 5 1298783 磁性編碼器,係具備:固接在軸之前端部的 根據該霍耳元件之檢測計算軸的旋轉角,而且=件 運算處理固信號、之運算處理部;以及分別將藉由 部’ 的複數個信號輸出至外部之複數個電路 編碼具有輛的磁鐵以及運算㈣ 在導^? 碼器主體部連接導線電纖,此外, 部供仏雷、择”"、有數電路部以及對編碼器主體 h、、、口電源之電源電路部的中 編碼器主體邻p亚在軸突出面以外的 王虹。卩之外面施加有密封材。 (發明之效果) 處理明中’係以固接在輛之前端部的磁鐵以及運曾 處理部構成編碼器主體邻, ^ 加密封材,因而不需要溝挿力2 ==之外’還可降低成本,此外,由於不需 度尺寸。 门又尺寸,因此可更縮短編碼器主體部之高 【實施方式】 剖面::卜=顯:之實施形態之磁性編碼器的部份 主雕Α Θ 圖係顯不施加在磁性編碼器之編碼器 主肢邛之密封材的外觀圖。 接於形恶之磁性編碼器係由:編碼器主體部10;連 連接的2 °。主肽部之導線電纜20; 一端與該導線電纜20 、中繼部30;連接於該中繼部3〇之另一端的導線電 317954 6 !298783 、、見21所構成。導線電纜21係連接未圖示之控制器。 編碼器主體冑10係由:在前端部形成有凹部⑴之轴 二嵌:軸U的凹部na之具有例如12kGs之磁通密度的 =鐵12;在上部形成有凹部13a,在内周部於周方向排列 二ί軸承Ub,並以可自由旋轉之方式將軸Μ前端部 凹部13a的殼體13;配置在磁鐵12上方,在Β =有與磁鐵12相對向U晶片14(運算處理部)的基 > H,安裝於基板15的上面之例如㈣接器16(第 /妾^連接有導線電繞2G之複數個素線2Ga,並以可組 .·=方式連接於公連接器16之母連接器17 (第2連接 合於殼體13之磁性材質的外罩18所構成。利 ::罩18遮斷來自外部之磁場的影響。此外,由外罩 ^之導線電纜20係以密封橡膠19密封。 =述ic晶片14的中心位於軸η的山中心轴上,以哕 在具周圍以9G度的間隔配置有檢測隨磁鐵‘ 磁:變化的霍耳元件(未圖示)。_晶片U係根 =:Γ檢測運算軸11的旋轉角,而且,將該絕對資 寬产以__ _ __ ’脈衝 並產生增量信(串列通訊用)的形式輪出, 刷4吉、ά 〇 μ θ里“號包含有Α相.Β相信號、盔 馬達信號叫"相信號.W相信號)等,; 寺㈣的切換係藉由信號模式設定來進行。 ^ 往前:基板14上面的公連接器16係在-端面排列有 在則方犬出之複數個連接銷(未圖示),此外,設置由== 317954 7 .J298783 .. 端面往前方突出之四角形的引導 鎖。稭由該引導部16a使接四方包圍該連接 18與殼體13之軸突出面以外::面 17:易插入。在外罩 加樹脂的密封材40。該实封材^面,如弟2圖所示,施 10之外罩18側插入模二使液:J用由編碼器主體部 間的縫隙而成型的熱溶工法形成者。2材流入與模具之 的導線電纜2〇係以密封橡膠19 ’由外罩以拉出 内部。 乂 *封’故密封材不會流入 中繼部30設有例如安梦右+ 部、通訊界面部、及輸出電路二=路部、低通濾波器 係以外罩仵謹。+% φ 、 土板(未圖示),該基板 广卓保4。電源電路部係將控制哭1298783 IX. Description of the Invention: [Technical Field] The present invention relates to, for example, a brushless DC motor used for multi-joint machine rotation angle detection, a position detection of a steering wheel of an automobile, and the like. Brush type DC [Prior Art] Encoder. The encoder has a shirt and a magnetic body. The system is optically supported with a rotating two body at the end, a groove formed on the outer peripheral surface of the body, and a ring-mounted car: the housing is embedded with a cover to keep Airtightness (not published in the publication of this prior art). SUMMARY OF THE INVENTION (Problems to be Solved by the Invention) = It is a matter of the above-mentioned conventional encoder that the groove must be applied to the groove in the casing, and it takes time to process the groove. The cost is rising. In addition, since the outer circumference of the casing is covered by the outer cover, it is impossible to confirm whether or not the 0 ring has been fitted into the groove. Further, since the casing requires a groove as described above, the height of the casing is reduced, and as the height dimension becomes longer, the size of the casing becomes longer, and the height of the encoder becomes longer. The present invention has been made to solve the aforementioned problems (4). The purpose of the present invention is to provide a type that can not only further reduce the size of the outer shape, but also does not use it. The ring also ensures a waterproof, low cost magnetic encoder. (Means for Solving the Problem) 317954 5 1298783 The magnetic encoder includes: an arithmetic processing unit that fixes a rotation angle of the axis based on the detection of the Hall element at a front end portion of the shaft; And separately outputting a plurality of circuits outputted to the outside by the plurality of signals of the section to encode a magnet having a vehicle and calculating (4) connecting the conductor fiber to the main body of the encoder, and in addition, supplying a portion to the "and" The number of circuit parts and the medium encoder body of the power supply circuit unit of the encoder main body h and the power supply circuit unit of the port power supply are adjacent to each other, and a sealing material is applied to the outside of the shaft. (The effect of the invention) In the middle of the Ming dynasty, the magnets fixed to the front end of the vehicle and the transport processing part constitute the encoder main body, and the sealing material is added, so that the groove insertion force 2 == is not required, and the cost can be reduced, in addition, The size of the door is not required. Therefore, the height of the main body of the encoder can be shortened. [Embodiment] Section:: Bu = Display: Part of the main engraving of the magnetic encoder of the embodiment: magnetic Appearance diagram of the encapsulant of the main limb of the encoder of the encoder. The magnetic encoder connected to the devil is: the main body of the encoder 10; the connected 2 °. The lead cable 20 of the main peptide; one end and the wire The cable 20 and the relay unit 30 are connected to the other end of the relay unit 3, and the lead wires are connected to the other end. The wire cable 21 is connected to a controller (not shown). The encoder body 10 The shaft is formed by the concave portion (1) at the front end portion: the concave portion na of the shaft U has a magnetic flux density of, for example, 12 kGs = iron 12; the concave portion 13a is formed at the upper portion, and the inner peripheral portion is arranged in the circumferential direction. The bearing Ub is rotatably provided with the housing 13 of the shaft end portion recessed portion 13a, and is disposed above the magnet 12, and has a base opposite to the magnet 12 (the arithmetic processing unit). Mounted on the upper surface of the substrate 15, for example, a (four) connector 16 (the first plurality of prime wires 2Ga connected to the wires 2G, and connected to the female connector 17 of the male connector 16 in a groupable manner. (The second connection is made up of the outer cover 18 of the magnetic material of the casing 13. The cover: 18 covers the magnetic field from the outside. In addition, the wire cable 20 of the outer cover is sealed with a sealing rubber 19. The center of the ic wafer 14 is located on the mountain center axis of the axis η, and the detecting magnets are disposed at intervals of 9 G degrees around the device. Magnetic: a changed Hall element (not shown). _ Wafer U-system root =: Γ Detects the rotation angle of the arithmetic axis 11, and the absolute width is produced by __ _ __ 'pulse and generates an incremental letter ( In the form of serial communication, the 4th, ά 〇μ θ "the number contains the Α phase. The phase signal, the helmet motor signal is called "phase signal. W phase signal", etc.;; Temple (four) switching This is done by signal mode setting. ^ Forward: The male connector 16 on the upper surface of the substrate 14 is arranged at the end surface with a plurality of connecting pins (not shown) which are arranged in the square dog. Further, the setting is made by == 317954 7 .J298783 .. A prominent quadrilateral guide lock. The straw is surrounded by the guide portion 16a so as to surround the joint 18 and the shaft projection surface of the casing 13: Face 17: Easy to insert. A resin sealing material 40 is applied to the outer cover. The solid sealing material is as shown in Fig. 2, and the outer cover 18 side is inserted into the die 2 to form a liquid: J is formed by a hot melt method formed by a gap between the main body portions of the encoder. The 2 material flows into the wire cable 2 of the mold to seal the rubber 19' by the outer cover to pull the inside.乂 *封' Therefore, the sealing material does not flow into the relay unit 30, for example, the Anemon right + part, the communication interface part, and the output circuit 2 = the road part and the low-pass filter system. +% φ, earth plate (not shown), the substrate is Guangzhuo 4. The power circuit department will control the cry

定電壓化,並供給至編碼器主體部1〇:二-源5V 波器部係將PWM信號轉換為類師 土只低通濾 當由控制器接收到旋轉角的數位資二請求二=部^ :知1c晶片14 ’且依照該通知而接收來自:晶片:内: 數位信號(絕對)時,即 a片14之 路係將來自1C晶片14的r θ ,至控制器。輸出電 如上所、f :片14的增1信號輪出至控制器的電路。 如上所述’由於係以:在前 嵌入軸η之凹部lla的二 式將軸η之前端部支撐在凹部13a的殼體13 .== 鐵12上方’在下面安裝有與磁鐵12相對’cf在二 ^基板⑴安裝於基板15上面的公連接器16;連日日^ 線電缓20的複數個素線咖,並以可組卸之 = 連接器16的母連接器17;以及嵌合於殼體13之= 317954 8 1298783 . 的外罩18構成編碼器主體部1〇,故可獲得外 !5麵X 15mmx 22mm之小型編碼器主體部1〇,此外為山 於在該編碼器主體部1G的外罩18與殼體Η(軸突 外)的外面施加密封材4G’故無需進行溝槽加工或〇产二 組裝作業,因此,不僅可確保防水性,還可降低成本衣此 外丄由於不需要溝槽部分的高度尺寸,故可進一步縮短編 碼态主體部10的高度尺寸。 【圖式簡單說明】 第1圖係顯示本發明之實施形態之磁性編碼器的部分 剖面的外觀圖。 第2圖係顯示施加於磁性編碼器之編碼器主體部之密 封材的外觀圖。 【主要元件符號說明】 編碼器主體部 11 車由 11a 凹部 12 磁鐵 13 殼體 13a 凹部 13b 密封軸承 14 扣晶片 15 基板 16 公連接器 16 a 弓丨導部 317954 9 1298783 17 母連接器 18 外罩 19 密封橡膠 20 導線電纜 20a 素線 21 導線電纜 30 中繼部 40 密封材Constant voltage, and supplied to the main body of the encoder 1〇: The two-source 5V wave unit converts the PWM signal into a class-like earth only low-pass filter. When the controller receives the rotation angle, the number of the second request is two. ^ : Knowing the 1c chip 14' and receiving according to the notification from: wafer: internal: digital signal (absolute), that is, the path of the a slice 14 is from the θ of the 1C wafer 14 to the controller. Output power As above, f: The increment 1 signal of the slice 14 is rotated out to the circuit of the controller. As described above, 'because the second type of the concave portion 11a of the front insertion axis η supports the front end of the shaft η in the housing 13 of the recess 13a. == Above the iron 12' is mounted below the magnet 12 opposite to the 'cf' a male connector 16 mounted on the substrate 15 on the second substrate (1); a plurality of plain wires connected to the solar cell 20; and a female connector 17 of the connector 16; The outer cover 18 of the housing 13 = 317954 8 1298783 . constitutes the encoder main body 1〇, so that the small encoder main body 1〇 of the outer surface 5 faces X 15 mm x 22 mm can be obtained, and the encoder main body portion 1G is also provided. The outer cover 18 and the outer surface of the casing 外 (outside the axon) are applied with the sealing material 4G', so that no groove processing or assembly work is required, so that not only waterproofness but also cost reduction can be ensured. The height dimension of the groove portion can further shorten the height dimension of the coded body portion 10. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a perspective view showing a partial cross section of a magnetic encoder according to an embodiment of the present invention. Fig. 2 is a view showing the appearance of a sealing member applied to the main body portion of the encoder of the magnetic encoder. [Main component symbol description] Encoder main body portion 11 Vehicle 11a Recessed portion 12 Magnet 13 Housing 13a Recessed portion 13b Sealed bearing 14 Buckled wafer 15 Substrate 16 Male connector 16 a Bow guide 317954 9 1298783 17 Female connector 18 Cover 19 Sealing rubber 20 wire cable 20a plain wire 21 wire cable 30 relay part 40 sealing material

Claims (1)

I298783 十、申請專利範圍: 編碼器,具備:固接在軸之前端部的磁鐵;具 有仏測卩通者該磁鐵之旋轉 哕蓄H …疋钻之磁场變化的霍耳元件,根據 -隹耳7L件之檢測運算軸的旋 角資訊產生複數個信號之運算處理部.以及 轉 個電路部, ^ 虎輸出至外部之複數 .磁I編碼8細具有㈣磁鐵以及運算處理部 ^為編碼器主體部,並於該 。 m , LL ^ 王體部連接導線電 / 、、見此外,在前述導線電纜上且備.且古二+ 路部以及對前述編碼器主體部供;;電複數個電 的中繼部, 丨仏、、·。電源之電源電路部 並在輛突出面以外的 加有密封材。 卜的月j述編碼盗主體部之外面施 2·如申料鄕項之磁 器主體部係具備: 八中,别述編碼 安裝有前述運算處理部的基板; 述基前述軸’使前述磁鐵與前 &理部相對向的殼體; 第】=前述基板之運算處理部安裝面之相反面的 —連接有前述導線電鐵,以可組卸 弟】連接器的第2連接器’·以及 ;妾在前述 以覆蓋前述第1及第2連接器、前述基板之方式钱 317954 11 1298783 合於前述殼體的外罩。 3·如申請專利範圍第2項之磁性編碼器,其中,在軸突出 面之外的前述編碼器主體部外罩以及殼體外面施加有 密封材。I298783 X. Patent application scope: The encoder has: a magnet fixed to the front end of the shaft; and a Hall element having a magnetic field change of the rotation of the magnet of the magnet, according to the - ear The rotation angle information of the detection axis of the 7L piece generates the arithmetic processing unit of the plurality of signals, and the circuit part of the rotation, and the complex circuit of the tiger output to the outside. The magnetic I code 8 has a (four) magnet and the arithmetic processing unit is the encoder body. Department, and it is. m , LL ^ king body connecting wire electric /, see, in addition, on the above-mentioned wire and cable, and the ancient two + road section and the above-mentioned encoder body part;; a plurality of electrical relay parts, 丨仏, ,·. The power supply circuit of the power supply is provided with a sealing material other than the protruding surface. In the case of the outer body of the pirate body, the main body of the genre is provided with the following: a front housing of the front and the opposite side of the processing unit; the second surface of the mounting surface of the processing unit of the substrate is connected to the second side connector of the connector; The cover 316954 11 1298783 is attached to the outer casing to cover the first and second connectors and the substrate. 3. The magnetic encoder according to claim 2, wherein a seal member is applied to the outer cover of the encoder main body and the outer surface of the casing other than the projecting surface of the shaft. 12 31795412 317954
TW095108095A 2005-11-14 2006-03-10 Magnetic encoder TWI298783B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2005328637A JP4711412B2 (en) 2005-11-14 2005-11-14 Magnetic encoder

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Publication Number Publication Date
TW200718922A TW200718922A (en) 2007-05-16
TWI298783B true TWI298783B (en) 2008-07-11

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JP (1) JP4711412B2 (en)
KR (1) KR100797236B1 (en)
CN (1) CN100529674C (en)
TW (1) TWI298783B (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101201257B (en) * 2007-12-24 2011-03-16 孙成 Magnetic rotary encoder
US20160056691A1 (en) * 2014-08-22 2016-02-25 Nidec Avtron Automation Corporation Self-centering for encoder device
CN107764290B (en) * 2017-11-15 2023-08-29 武汉磐索地勘科技有限公司 Waterproof rotary encoder
JP2020012730A (en) * 2018-07-18 2020-01-23 多摩川精機株式会社 Magnetic encoder and method for attaching the same

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Publication number Priority date Publication date Assignee Title
JPS59162667A (en) 1983-03-07 1984-09-13 Sankyo Seiki Mfg Co Ltd Magnetic encoder device
JPS6358264A (en) * 1986-08-29 1988-03-14 Aisin Seiki Co Ltd Rotating direction detector
JPS63273009A (en) 1987-04-30 1988-11-10 Sumitomo Electric Ind Ltd Sensor structure
JP3046469B2 (en) * 1993-03-09 2000-05-29 株式会社三協精機製作所 Multi-turn absolute encoder
JPH07280822A (en) * 1994-04-04 1995-10-27 Sumitomo Electric Ind Ltd Rotation sensor
JP3550591B2 (en) * 1994-12-27 2004-08-04 株式会社ニコン Absolute encoder
JP4055612B2 (en) * 2002-03-12 2008-03-05 オムロン株式会社 Proximity sensor
DE10312045B4 (en) 2003-03-18 2014-07-31 Anton Rodi Measuring system for absolute value recording of angles and paths
JP2005098738A (en) * 2003-09-22 2005-04-14 Ckd Corp Rotational position detection device

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JP4711412B2 (en) 2011-06-29
CN100529674C (en) 2009-08-19
CN1967154A (en) 2007-05-23
JP2007132896A (en) 2007-05-31
KR100797236B1 (en) 2008-01-23
TW200718922A (en) 2007-05-16
KR20070051631A (en) 2007-05-18

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