WO2011150587A1 - 一种无止档编码器 - Google Patents

一种无止档编码器 Download PDF

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Publication number
WO2011150587A1
WO2011150587A1 PCT/CN2010/075416 CN2010075416W WO2011150587A1 WO 2011150587 A1 WO2011150587 A1 WO 2011150587A1 CN 2010075416 W CN2010075416 W CN 2010075416W WO 2011150587 A1 WO2011150587 A1 WO 2011150587A1
Authority
WO
WIPO (PCT)
Prior art keywords
positioning
shaft
arm
brush
piece
Prior art date
Application number
PCT/CN2010/075416
Other languages
English (en)
French (fr)
Inventor
金志良
Original Assignee
东莞市长泰尔电子有限公司
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 东莞市长泰尔电子有限公司 filed Critical 东莞市长泰尔电子有限公司
Priority to US13/806,884 priority Critical patent/US8681024B2/en
Priority to EP10852384.6A priority patent/EP2579003A4/en
Priority to CN201080003808.5A priority patent/CN102203559B/zh
Publication of WO2011150587A1 publication Critical patent/WO2011150587A1/zh

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Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M1/00—Analogue/digital conversion; Digital/analogue conversion
    • H03M1/12—Analogue/digital converters
    • H03M1/22—Analogue/digital converters pattern-reading type
    • H03M1/24—Analogue/digital converters pattern-reading type using relatively movable reader and disc or strip
    • H03M1/245—Constructional details of parts relevant to the encoding mechanism, e.g. pattern carriers, pattern sensors
    • 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
    • G01D5/25—Selecting one or more conductors or channels from a plurality of conductors or channels, e.g. by closing contacts
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01C—RESISTORS
    • H01C10/00—Adjustable resistors
    • H01C10/30—Adjustable resistors the contact sliding along resistive element
    • H01C10/32—Adjustable resistors the contact sliding along resistive element the contact moving in an arcuate path
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H19/00—Switches operated by an operating part which is rotatable about a longitudinal axis thereof and which is acted upon directly by a solid body external to the switch, e.g. by a hand
    • H01H19/54—Switches operated by an operating part which is rotatable about a longitudinal axis thereof and which is acted upon directly by a solid body external to the switch, e.g. by a hand the operating part having at least five or an unspecified number of operative positions
    • H01H19/56—Angularly-movable actuating part carrying contacts, e.g. drum switch
    • H01H19/58—Angularly-movable actuating part carrying contacts, e.g. drum switch having only axial contact pressure, e.g. disc switch, wafer switch
    • H01H19/585—Angularly-movable actuating part carrying contacts, e.g. drum switch having only axial contact pressure, e.g. disc switch, wafer switch provided with printed circuit contacts

Definitions

  • the utility model relates to an electronic component, in particular to a non-stop encoder without a stop structure.
  • Rotary encoders are very versatile.
  • the rotating shaft of the rotary encoder passes through the shaft hole of the sleeve to enable the rotating shaft to rotate freely in the shaft hole of the sleeve; and the stopping seat is further provided, and the shaft hole matching the rotating shaft is opened on the stopping seat, so as to stop
  • the movable seat rotates with the rotating shaft.
  • a stop structure is arranged on the rotating shaft and the stopping seat to limit the angle of rotation of the rotating shaft, such as only rotating 320 degrees.
  • the stop structure is a stop block respectively disposed on the rotating shaft and the stopping seat. When the two stopping blocks collide, the rotating shaft can no longer rotate forward, and can only be reversed.
  • the angle at which the shaft can rotate (such as 320 degrees) is equally divided into 16 equal parts, that is, the industry is called 16 files, and 16 gears are set within the range of 320 degrees, if each gear position corresponds to one channel.
  • the encoder can control 16 channels.
  • the encoder with the stop structure is inconvenient for its use and programming: 1. If the channel is limited, it cannot be used for more channels, which is inconvenient for actual operation control; 2. Inconvenience to programming, due to limitations The number of channels limits programming.
  • the brush is generally fixed to the boom by riveting.
  • the following drawbacks are caused: 1.
  • the degree of tightness of the riveting and fixing is inconsistent, resulting in unstable contact between the brush and the circuit piece, affecting the stability of the signal; 2.
  • the riveting and pressing need to go through high temperature, due to the existence and difference of thermal expansion and contraction The thermal deformation coefficient of the material is different. After the high temperature, the shrinkage and inconsistency will occur, which will inevitably cause the brush to loosen, the synchronization of the brush to rotate with the shaft will be deteriorated, or the contact between the brush and the circuit board will be unstable. Electrical performance and service life are affected; 3.
  • the height of the brush head of the brush to the bottom surface of the boom seat plate before the brush assembly is high temperature (that is, the brush head of the brush)
  • the height of the brush is reduced by 50%, and the height of the brush head of the brush varies greatly, which also causes the contact between the brush head of the brush and the circuit board to be loose, resulting in unstable contact between the brush and the circuit board.
  • the elastic arms of the brushes are too short. The length of the elastic arm of the brush is the distance between the riveting point or the fulcrum to the brush head of the brush.
  • the utility model aims to overcome the above-mentioned deficiencies of the prior art, and introduces a non-stop encoder which can use 32 channels or more, has good structural consistency, high assembly precision, and the brush does not loosen.
  • the contact between the brush and the circuit board is stable, the output signal is stable, the electrical performance is improved, and the service life is lengthened.
  • the non-stop encoder of the present invention adopts the following technical solutions:
  • a non-stop encoder of the present invention comprising: setting a rotating shaft, a bushing, a stopping seat, a positioning elastic piece, a positioning piece, a partition plate, at least one moving arm, at least one brush and at least one body from bottom to top in order The number of the boom, the brush and the body are matched; the shaft passes through the shaft hole on the sleeve from bottom to top; the shaft seat is matched with the shaft shaft, and the shaft is self-rotating The bottom hole passes through the shaft hole on the stopping seat to rotate the stopping seat with the rotating shaft, and the stopping seat is disposed in the sinking hole of the upper surface of the sleeve; on the rotating shaft, the outer snap ring and the sleeve are engaged to make the rotating shaft and the shaft The sleeve is positioned in the axial direction; the shaft has a shaft hole for the shaft to pass and the arm to rotate with the shaft; the shaft hole is formed on the body to pass the shaft, and the coding circuit contact piece is wrapped
  • the innovation point is that the rotation axis and the stop No stop on the seat
  • the rotation angle of the rotating shaft is equal to or greater than 360 degrees
  • the brush includes a plastic molding portion, a bending portion, an elastic arm and the brush head, and the plastic molding portion, the bending portion, the elastic arm and the brush head are integrally formed.
  • the plastic molding part is molded on the boom, and the bending part connects the plastic molding part with the elastic arm and bends the elastic arm to the plastic molding part.
  • the elastic arm includes the main arm and the branch arm, and the main arm has a long circle. In the shape, the brush head is pressed at the free ends of the main arm and the branch arm.
  • the positioning elastic piece is annular, the positioning elastic piece is riveted to the upper surface of the stopping seat, and rotates with the rotating shaft together with the stopping seat; a positioning concave is formed at one end or both ends of a diameter on the positioning elastic piece.
  • the positioning piece is provided with a shaft hole for passing the rotating shaft, and a plurality of positioning protrusions are formed around the shaft hole and corresponding to the position of the positioning concave on the positioning elastic piece, and the plurality of positioning protrusions are evenly arranged; the positioning piece is attached to the positioning elastic piece
  • the positioning concave on the positioning elastic piece cooperates with the positioning concave on the positioning piece to form a gear positioning structure, and the first gear position corresponds to a coding signal.
  • a shaft hole is formed in the partition plate for passing the rotating shaft, and upper and lower surfaces of the partition plate are respectively attached to the lower surface of the body and the upper surface of the positioning piece.
  • a rear cover is further provided, the rear cover is in the shape of a plate, and the rear cover, the body, the partition plate, the positioning piece and the sleeve are respectively provided with riveting holes, and the rear cover, the body, the partition plate, the positioning piece and the sleeve are riveted into a whole by the rivet .
  • the utility model has the following beneficial effects: First, no stop structure is arranged on the rotating shaft and the stopping seat, and the rotation angle of the rotating shaft is equal to or greater than 360 degrees, and the positioning of the gear position used is greatly increased, so that The 16 gear positions of the prior art are increased to 32 or more, even if the 16 channels used in the prior art are increased to 32 or more, which facilitates programming and actual operation control, and can be continuously rotated during actual operation control. , the code can be continuously incremented during programming. Secondly, the brush is molded on the boom, the precision of the structure is improved, and the overall dimensional consistency of the product is improved.
  • the brush includes a plastic molding portion, a bending portion, a resilient arm and a brush head, and the plastic molding portion is molded on the boom to make it possible to lengthen the elastic arm of the brush, thereby removing the elastic arm of the elongated brush. Structural obstacles existed; the bend becomes a fulcrum, and the elastic arm of the brush is lengthened (increased by more than 50% longer than the arm of the rivet-pressed structure). On the one hand, the height of the brush head of the brush is reduced by the same amount.
  • the elastic arm of the brush is lengthened, the change of the opening angle of the elastic arm of the brush is small, that is, the fluctuation of the elastic arm of the brush becomes small, so that the elasticity of the elastic arm of the brush does not change much, and the electric power is avoided.
  • the contact between the brush head and the circuit board is loose, which is also beneficial to improve the stability of the contact between the brush and the circuit board.
  • the brush rotates with the rotating shaft, even if the height of the brush head changes, the brush The elastic arm has a small undulation, which also improves the stability of the brush and the contact of the circuit board.
  • the utility model is widely used, and the utility model is widely applicable to audio, automobile, instrumentation and home appliances.
  • Figure 1 is a schematic view of the utility model.
  • Figure 2 is an exploded perspective view of the present invention.
  • Figure 3 is a schematic view of the brush and the boom of the present invention.
  • Figure 4 is a schematic view of the brush and the boom of the present invention (the boom is not yet bent).
  • Figure 5 is a top view of Figure 4 and rotated 45 degrees clockwise.
  • the utility model relates to a non-stop encoder, which comprises a rotary shaft 1, a sleeve 2, a stop seat 4, a positioning elastic piece 5, a positioning piece 6, and a partition plate 7 which are sequentially arranged from bottom to top.
  • a non-stop encoder which comprises a rotary shaft 1, a sleeve 2, a stop seat 4, a positioning elastic piece 5, a positioning piece 6, and a partition plate 7 which are sequentially arranged from bottom to top.
  • the rotating shaft 1 is a stepped shaft, and the rotating shaft 1 passes through the shaft hole on the sleeve 2 from bottom to top;
  • the stopping base 4 is formed with a rotating shaft 1 matching shaft hole, the shaft 1 passes through the shaft hole on the stopping seat 4 from bottom to top, so that the stopping seat 4 rotates with the rotating shaft 1, and the stopping seat 4 is disposed in the sinking hole of the upper surface of the sleeve 1;
  • the outer casing ring 3 of the rotating shaft 1 is engaged with the sleeve 2 to position the rotating shaft 1 and the sleeve 2 in the axial direction;
  • the moving arm 8 is provided with a shaft hole for the rotating shaft 1 to pass and the moving arm 8 to rotate with the rotating shaft 1;
  • the upper shaft hole allows the shaft 1 to pass, and the encoder circuit contact piece 111 is wrapped in the body 11, and the end portion of the encoder circuit contact piece 111 protrudes from the body 11 to become a terminal 10 connected to the external circuit.
  • the surface of the circuit contact piece 111 is exposed so as to be in electrical contact with the brush head 94 of the brush 9 to form an encoded signal output from the terminal;
  • the innovation is that no stop structure is provided on the rotating shaft 1 and the stopping block 4, and the rotating shaft 1 is rotated.
  • the angle of the brush is equal to or greater than 360 degrees;
  • the brush 9 includes a plastic part 91, a bent portion 92, a resilient arm 93, and the brush head 94, a plastic part 91, a bent portion 92, a resilient arm 93, and the
  • the brush head 94 is integrally formed into a unitary structure, and is coated.
  • the portion 91 is molded on the boom 8, and the bent portion 92 connects the plastic portion 91 with the elastic arm 93 and folds the elastic arm 93 toward the overmolding portion 91.
  • the elastic arm 93 includes a main arm 931 and a branch arm 932, and the main arm 931 In the form of an elongated ring, the brush head 94 is pressed against the free ends of the main arm 931 and the branch arm 932.
  • the positioning elastic piece 5 is annular, and the positioning elastic piece 5 is riveted to the upper surface of the stopper base 4, and rotates with the rotation shaft 1 together with the stopper base 4; a positioning concave 51 is formed at one end or both ends of a diameter of the positioning elastic piece 5.
  • the positioning piece 6 is formed with a shaft hole for passing the rotating shaft 1, and a plurality of positioning protrusions 61 are formed on the positioning hole corresponding to the positioning concave portion 51 on the positioning elastic piece 5, and the plurality of positioning protrusions 61 are evenly arranged;
  • the positioning piece 6 is attached to the positioning elastic piece 5.
  • the positioning concave 51 on the positioning elastic piece 5 cooperates with the positioning convex 61 on the positioning piece 6 to form a gear positioning structure, and the first gear position corresponds to an encoding signal.
  • the partition plate 7 is provided with a shaft hole for the passage of the rotary shaft 1, and the upper and lower surfaces of the partition plate 7 are respectively attached to the lower surface of the body 11 and the upper surface of the positioning piece 6.
  • a rear cover 12 is disposed on the upper surface of the last body 11.
  • the rear cover 12 has a plate shape, and the rear cover 12, the body 11, the partition 7, the positioning piece 6, and the sleeve 2 are respectively provided with riveting holes through the rivets. 13
  • the rear cover 12, the body 11, the partition 7, the positioning piece 6, and the sleeve 2 are riveted integrally.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Theoretical Computer Science (AREA)
  • Transmission And Conversion Of Sensor Element Output (AREA)

Description

一种无止档编码器
技术领域
本实用新型涉及电子元部件， 尤其是没有止档结构的一种无止档编码 器。
背景技术
旋转编码器用途很广。 现有技术中， 旋转编码器的转轴穿过轴套的轴孔 使转轴能在轴套的轴孔随意转动； 还设置止动座， 止动座上开制与转轴匹配 的轴孔， 使止动座随转轴转动。 同时， 在转轴及止动座上设置止档结构， 限 制转轴转动的角度， 如只能转动 320度等。 一般来说， 止档结构为分别设置 在转轴、 止动座上的止动块， 两止动块相碰时， 转轴不能再朝前转动， 只能 倒转。 如果把转轴能转动的角度（如 320度）等分为 16等分， 即是业内称之 的 16档， 在 320度的范围内设置 16个档位， 如果每个档位对应控制 1个频 道， 该编码器能控制 16个频道。 这种设置止档结构的编码器对其使用及编程 带来不便： ①、 如频道受到限制， 不能用于更多的频道， 实际操作控制时不 方便； ②、 对编程造成不便， 由于限制了频道的个数， 使编程受到限制。
另外， 现有技术中， 电刷一般与动臂采用铆压固定。 由此产生以下弊端： ①、 铆压固定松紧程度不一致， 致使电刷与电路片的接触不稳定， 影响信号 的稳定性； ②、 铆压固定需要经过高温， 由于热胀冷縮的存在且不同材料的 热变形系数不一， 高温过后会出现收縮且不一致的现象， 势必使电刷出现松 动， 使电刷随轴转动的同步性变差， 或者使电刷与电路片的接触不稳定， 使 电气性能及使用寿命受到影响； ③、 铆接时高温的影响， 电刷组装铆接经高 温后比电刷组装前， 其电刷的刷头至动臂座板底面的高度 （即电刷的刷头的 高度） 下降 50% , 电刷的刷头的高度变化大， 也导致电刷的刷头与电路片的 接触出现松动， 造成电刷与电路片的接触不稳定。 还有， 现有技术中， 电刷的弹性臂过短。 所谓电刷的弹性臂的长度即铆 接点或支点到电刷的刷头的距离。 当电刷的刷头的高度变化相同时， 由于电 刷的弹性臂的长度过短， 使电刷的弹性臂与动臂座板平面的夹角产生大的变 化， 也容易造成电刷松动， 同时电刷在随转轴转动时， 电刷的弹性臂起伏大， 也造成电刷与电路片的接触不稳定。
发明内容
本实用新型旨在克服现有技术的上述的不足， 推出一种无止档编码器， 它可以使用 32频道甚至更多， 其结构的一致性好， 装配精度高， 电刷不会产 生松动现象， 电刷与电路片的接触稳定， 输出的信号稳定， 电气性能提高， 使用寿命加长。
为此， 本实用新型一种无止档编码器采用如下技术方案：
构造本实用新型一种无止档编码器， 包括自下而上依次设置转轴、 轴套、 止动座、 定位弹片、 定位片、 隔板、 至少一个动臂、 至少一个电刷及至少一 个本体， 其中所述动臂、 所述电刷及所述本体的个数相匹配； 转轴自下而上 穿过轴套上的轴孔； 止动座上制有与转轴匹配的轴孔， 转轴自下而上穿过止 动座上的轴孔使止动座随转轴转动， 且止动座设置于轴套上表面的沉坑中； 在转轴上外套卡环与轴套相卡使转轴与轴套在轴向上定位； 动臂上制有轴孔 让转轴通过并使动臂随转轴转动； 本体上开制轴孔让转轴通过， 在本体中包 塑编码电路接触片， 编码电路接触片的端部从本体中伸出成为与外电路连接 的端子， 编码电路接触片的表面外露以便与电刷的刷头电性接触形成编码信 号从端子输出； 其创新之点是， 在转轴及止动座上不设置止档结构， 转轴转 动的角度等于或大于 360度； 所述电刷包括包塑部、 折弯部、 弹性臂和所述 刷头， 包塑部、 折弯部、 弹性臂和所述刷头一体成型为整体结构， 包塑部包 塑于动臂， 折弯部将包塑部与弹性臂连接并将弹性臂折向包塑部， 弹性臂包 括主臂及分支臂， 主臂呈长形的圈状体， 所述刷头压制在主臂及分支臂的自 由端。
对上述技术方案进行进一步阐述： 定位弹片呈环状， 定位弹片铆接于止动座的上表面， 并与止动座一同随 转轴转动； 在定位弹片上一直径的一端或两端制有定位凹。
定位片上制有轴孔让转轴通过， 其上围绕轴孔并与定位弹片上的定位凹 的位置相对应制有多个定位凸， 多个所述定位凸均匀排列； 定位片与定位弹 片相贴， 定位弹片上的定位凹与定位片上的定位凹相配合以构成档位定位结 构， 一档位定位对应一编码信号。
隔板上制有轴孔让转轴通过， 隔板的上、 下表面分别与本体的下表面、 定位片的上表面相贴。
还设置后盖， 后盖呈板状， 后盖、 本体、 隔板、 定位片及轴套上分别制 有铆孔， 通过铆钉将后盖、 本体、 隔板、 定位片及轴套铆接成整体。
本实用新型同现有技术相比， 其有益效果在于： 其一、 在转轴及止动座 上不设置止档结构， 转轴转动的角度等于或大于 360度， 使用的档位定位大 大增加， 使现有技术的 16个档位定位增加到 32个甚至更多， 即使现有技术 使用的 16频道增加到 32个甚至更多， 给编程及实际操作控制带来方便， 实 际操作控制时可以连续旋转， 编程时可以使编码连续递增。 其二， 电刷包塑 于动臂， 结构的精度提高， 产品整体尺寸一致性提高， 经过组装中的高温后， 电刷不会有松动现象， 使电刷与编码电路接触片接触稳定， 致使输出稳定的 信号， 从而提高电气性能。 其三、 电刷包括包塑部、 折弯部、 弹性臂和刷头， 并且包塑部包塑于动臂， 使加长电刷的弹性臂成为可能， 从而扫除了加长电 刷的弹性臂时存在的结构性障碍； 折弯部成为支点， 电刷的弹性臂加长 （比 铆压固定结构臂长增加 50%以上）， 一方面， 经组装使电刷的刷头的高度下降 量相同的情况下， 由于电刷的弹性臂加长， 电刷的弹性臂的张角的变化要小， 即电刷的弹性臂的起伏变小， 因而使电刷的弹性臂的弹性变化不大， 避免了 电刷的刷头与电路片的接触出现松动， 也利于提高电刷与电路片接触的稳定 性； 另一方面， 当电刷在随转轴转动时即使刷头的高度有所变化， 但电刷的 弹性臂起伏小， 也提高了电刷与电路片接触的稳定性。 其四、 用途广泛， 本 实用新型广泛适用于音响、 汽车、 仪器仪表及家电等。 附图说明
图 1为本实用新型示意图。
图 2为本实用新型分解示意图。
图 3为本实用新型电刷与动臂示意图。
图 4为本实用新型电刷与动臂示意图 （动臂还未折弯)。
图 5为图 4的俯视图并顺时针转动 45度。
图中： 1、 转轴； 2、 轴套； 3、 卡环； 4、 止动座； 5、 定位弹片； 51、 定 位凹； 6、 定位片； 61、 定位凸； 7、 隔板； 8、 动臂； 9、 电刷； 91、 包塑部; 92、 折弯部； 93、 弹性臂； 931、 主臂； 932、 分支臂； 94、 刷头； 10、 端子； 11、 本体； 111、 编码电路接触片； 12、 后盖； 13、 铆钉。
具体实施方式
下面， 结合附图， 介绍本实用新型的具体实施方式。
如图 1至图 5所示，本实用新型一种无止档编码器，包括自下而上依次设 置转轴 1、 轴套 2、 止动座 4、 定位弹片 5、 定位片 6、 隔板 7、 至少一个动臂 8、 至少一个电刷 9及至少一个本体 11， 其中所述动臂 8、 所述电刷 9及所述 本体 11的个数相匹配， 图 1及图 2中， 分别设置四个所述动臂 8、 所述电刷 9及所述本体 11 ; 转轴 1为阶梯轴， 转轴 1 自下而上穿过轴套 2上的轴孔； 止动座 4上制有与转轴 1匹配的轴孔， 转轴 1 自下而上穿过止动座 4上的轴 孔使止动座 4随转轴 1转动， 且止动座 4设置于轴套 1上表面的沉坑中； 在 转轴 1上外套卡环 3与轴套 2相卡使转轴 1与轴套 2在轴向上定位； 动臂 8 上制有轴孔让转轴 1通过并使动臂 8随转轴 1转动； 本体 11上开制轴孔让转 轴 1通过， 在本体 11中包塑编码电路接触片 111， 编码电路接触片 111的端 部从本体 11中伸出成为与外电路连接的端子 10，编码电路接触片 111的表面 外露以便与电刷 9的刷头 94电性接触形成编码信号从端子输出； 其创新之点 是， 在转轴 1及止动座 4上不设置止档结构， 转轴 1转动的角度等于或大于 360度； 所述电刷 9包括包塑部 91、 折弯部 92、 弹性臂 93和所述刷头 94， 包塑部 91、 折弯部 92、 弹性臂 93和所述刷头 94一体成型为整体结构， 包塑 部 91包塑于动臂 8， 折弯部 92将包塑部 91与弹性臂 93连接并将弹性臂 93 折向包塑部 91， 弹性臂 93包括主臂 931及分支臂 932， 主臂 931呈长形的圈 状体， 所述刷头 94压制在主臂 931及分支臂 932的自由端。
定位弹片 5呈环状， 定位弹片 5铆接于止动座 4的上表面， 并与止动座 4 一同随转轴 1转动; 在定位弹片 5上一直径的一端或两端制有定位凹 51。
定位片 6上制有轴孔让转轴 1通过， 其上围绕轴孔并与定位弹片 5上的 定位凹 51的位置相对应制有多个定位凸 61， 多个所述定位凸 61均匀排列； 定位片 6与定位弹片 5相贴， 定位弹片 5上的定位凹 51与定位片 6上的定位 凸 61相配合以构成档位定位结构， 一档位定位对应一编码信号。
隔板 7上制有轴孔让转轴 1通过， 隔板 7的上、 下表面分别与本体 11的 下表面、 定位片 6的上表面相贴。
在最后的一本体 11的上表面相贴设置后盖 12，后盖 12呈板状，后盖 12、 本体 11、隔板 7、定位片 6及轴套 2上分别制有铆孔，通过铆钉 13将后盖 12、 本体 11、 隔板 7、 定位片 6及轴套 2铆接成整体。
以上所述， 仅是本实用新型的较佳实施例， 并非对本实用新型的技术范 围作任何限制。 本行业的技术人员， 在本技术方案的启迪下， 可以做出一些 变形与修改。 凡是依据本实用新型的技术实质对以上的实施例所作的任何修 改、 等同变化与修饰， 均仍属于本实用新型技术方案的范围内。

Claims

权 利 要 求 书
1、 一种无止档编码器， 包括自下而上依次设置转轴 （1)、 轴套 （2)、止 动座 （4)、 定位弹片 （5)、 定位片 （6)、 隔板 （7)、 至少一个动臂 （8)、 至 少一个电刷 （9)及至少一个本体 （11)， 其中所述动臂 （8)、 所述电刷 9及 所述本体 11的个数相匹配； 转轴 （1) 自下而上穿过轴套 （2)上的轴孔； 止 动座（4)上制有与转轴（1)匹配的轴孔， 转轴（1) 自下而上穿过止动座（4) 上的轴孔使止动座 （4) 随转轴 （1) 转动， 且止动座 （4) 设置于轴套 （1) 上表面的沉坑中； 在转轴 （1)上外套卡环 （3)与轴套 （2)相卡使转轴 （1) 与轴套（2)在轴向上定位； 动臂 （8)上制有轴孔让转轴 （1)通过并使动臂
(8)随转轴（1)转动； 本体（11)上开制轴孔让转轴（1)通过， 在本体（11) 中包塑编码电路接触片 （111)， 编码电路接触片 （111) 的端部从本体 （11) 中伸出成为与外电路连接的端子 （10)， 编码电路接触片 （111) 的表面外露 以便与电刷 （9) 的刷头 （94) 电性接触形成编码信号从端子输出； 其特征在 于： 在转轴 （1)及止动座 （4) 上不设置止档结构， 转轴 （1)转动的角度等 于或大于 360度；所述电刷（9)包括包塑部（91)、折弯部（92)、弹性臂（93) 和所述刷头（94)， 包塑部 (91)、折弯部（92)、弹性臂 (93)和所述刷头 (94) 一体成型为整体结构， 包塑部 （91) 包塑于动臂 （8)， 折弯部 （92) 将包塑 部 (91)与弹性臂 (93)连接并将弹性臂 (93)折向包塑部 (91)， 弹性臂 (93) 包括主臂 （931)及分支臂 （932)， 主臂 （931) 呈长形的圈状体， 所述刷头
(94)压制在主臂 （931)及分支臂 （932) 的自由端。
2、根据权利要求 1所述的一种无止档编码器，其特征在于：定位弹片（5) 呈环状， 定位弹片 （5)铆接于止动座 （4) 的上表面， 并与止动座 （4) 一同 随转轴（1)转动； 在定位弹片（5)上一直径的一端或两端制有定位凹（51)。
3、 根据权利要求 1所述的一种无止档编码器， 其特征在于： 定位片 （6) 上制有轴孔让转轴 （1)通过， 其上围绕轴孔并与定位弹片 （5) 上的定位凹 (51)的位置相对应制有多个定位凸（61)， 多个所述定位凸（61)均匀排列； 定位片 （6) 与定位弹片 （5) 相贴， 定位弹片 （5) 上的定位凹 （51) 与定位 片 （6) 上的定位凸 （61) 相配合以构成档位定位结构， 一档位定位对应一编 码信号。
4、 根据权利要求 1所述的一种无止档编码器， 其特征在于： 隔板 （7) 上制有轴孔让转轴 （1) 通过， 隔板 （7) 的上、 下表面分别与本体 （11) 的 下表面、 定位片 （6) 的上表面相贴。
5、 根据权利要求 1所述的一种无止档编码器， 其特征在于： 在最后的一 本体 （11) 的上表面相贴设置后盖 （12)， 后盖 （12) 呈板状， 后盖 （12)、 本体 （11)、 隔板 （7)、 定位片 （6) 及轴套 （2) 上分别制有铆孔， 通过铆钉
(13) 将后盖 （12)、 本体 （11)、 隔板 （7)、 定位片 （6) 及轴套 （2) 铆接 成整体。
PCT/CN2010/075416 2010-05-31 2010-07-23 一种无止档编码器 WO2011150587A1 (zh)

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