201210178 六、發明說明： 【發明所屬之技術領域】 本發明係關於-種馬達，之扣環，特別是可卡擎於 馬達之心軸，以限制該馬達轉子僅能相對該定子旋轉且不 股i離之扣環。 【先前技術】 睛參照第1及2圖所示，習知的扣環7係包含有一環 體71及數個限位件72，該環體71巾央形成有一内孔^ ’各該限位件72係連接於該内孔711壁並朝向中央延伸， 且各該限位件72係圍繞形成有一軸孔73。 時’該馬達8係包含有一基座8卜一定子82及一轉子 丄該基座81具有-軸管8n，該扣環7係置入該軸管8 該軸官811另置入有一軸承812，且該定子82係固 於該軸管811外周。該轉子83中央設有一心轴831，該, 軸831 -端連接該轉子83，鄰近另一端之外周緣則設有 口槽832 ’且該心轴831可穿過該轴承812及該扣環7 : 孔73 ’使各祕位件72嵌卡於該扣槽832，以限制該' 咖僅能f該轴管811 t旋轉且無法脫離。 再參照第2及4 ®所示’當心轴831穿過該扣環 、孔^時’由於該軸孔73孔徑小於該心軸831外徑，β 二為予―外力以迫使各概位件72變形，進而使該抽孔 形^擴⑽便於該叫831之端料過，然後再使各該 又位件72嵌卡於該扣槽gw。 201210178 者丄惟’習知各該限位件72為均一厚度之片狀體，所以 田孩〜軸83〗之端部擠壓各該限位件而迫使其變形時， 該變形里谷易集令於某一特定位置，且較多的變形量是集 $在各該限位件72呈均一厚度之部位，造成該部位在變形 的過程中谷易產生裂紋甚至斷裂。 抑凊參照第5圖所示，係另一種習知的扣環9結構，該 扣裱9亦包含有一環體91及數個限位件92，該環體91中 央=成有一内孔911 ’各該限位件92係呈傾斜向下連接於 該％體91之内孔911壁，且各該限位件92係圍繞形成有 一轴孔93。惟’此習知扣環9之各祕件92雖為傾斜設 置’可θ減少各斯艮位件92根部之變形量，然而各該限位件 92之厚度仍為均-’所⑽無轉決變㈣針在各該限 位件92呈均-厚度部位之缺點，以致於容易產生裂紋甚至 斷裂。 且前述習知扣環7、9之各限位件72、92斷裂時，該 斷裂之，位件72、92落於該軸管811内部，並跟隨該心軸 831不斷的在該軸管811内部旋擾碰撞而產生噪音。而且 ，當有部分限位件72、92斷裂時，各該限位件72、％嵌 卡於該心轴831之扣槽832的整體強度也會降低，所以當 該馬達8遭受外力衝擊，則很容易造成轉子们脫落。 【發明内容】 本發明之目的係提供一種馬達心軸之扣環，其運用於 馬達時’各該限位件在組裝的過程中不容易產生裂紋或斷 裂，使用壽命長。 201210178 本發月之另一目的係提供一種馬達心軸之扣環，其運 用於馬達時，可避免產生噪音及防止轉子脫落。、 根據本發明一種馬達心軸之扣環，係包含：一環體， 形成—内孔；及數個限位件，均具有—結合端及—卡 擎端j該限位件之結合端係連接該内孔壁，各該限位件 之卡掣端係由該内孔壁朝向令央延伸並圍繞形成一轴孔， „限位件均具有-上表面及-下表面；其中各該限位 山之厚度係為該上表面及下表面之間的軸向間距，該結合 =之厚度最大’該卡掣端之厚度最小，且各該限位件之厚 又係由該結合端朝向卡掣端漸縮。 【實施方式】 為讓本發明之上述及其他目的、舰及優點能更明顯 下文特舉本發明之較佳實施例，並配合所附圖式， 作詳細說明如下： .睛參照第6及7圖所示，本發明第一實施例之扣環i 係包含有一環體11及數個限位件12。 該環體11中央形成一内孔⑴，且該内孔ιη係貫通 該％體1之一頂面112及一底面113。 各該限位件均具有一結合端121及一卡掣端122 各該限位件12之結合端121係連接於該環體n之内孔 Hi壁面，各該限位件12之卡掣端122係由該内孔壁 向中央延伸jig繞形成有—軸孔13。各該限位件12均 ，有:上表面123及一下表面124 ’其中該上表面123係 向耗體11之頂面112,該下表面124係朝向該環體u 201210178 之底面113。 各該限位件〗2之上表面123及下表面i24可為平面 、弧面或平面及弧面之組合，且各該限位件12之201210178 VI. Description of the Invention: [Technical Field] The present invention relates to a motor, a buckle, and particularly a card spindle that is slidable to the motor, to limit the rotation of the motor rotor relative to the stator and not to I am away from the buckle. [Prior Art] As shown in Figures 1 and 2, the conventional buckle 7 includes a ring body 71 and a plurality of limiting members 72. The ring body 71 has an inner hole formed therein. The member 72 is connected to the wall of the inner hole 711 and extends toward the center, and each of the limiting members 72 is formed around a shaft hole 73. The motor 8 includes a base 8 and a rotor 82. The base 81 has a shaft tube 8n. The buckle 7 is inserted into the shaft tube 8. The shaft 811 is additionally provided with a bearing 812. And the stator 82 is fastened to the outer circumference of the shaft tube 811. A shaft 831 is disposed in the center of the rotor 83. The shaft 831-end is connected to the rotor 83. The outer periphery of the other end is provided with a slot 832' and the spindle 831 can pass through the bearing 812 and the buckle 7. The hole 73' engages the secret member 72 in the buckle groove 832 to restrict the rotation of the shaft tube 811 t and the detachment of the shaft tube 811 t. Referring again to the second and fourth words, 'When the mandrel shaft 831 passes through the buckle, the hole ^', since the hole diameter of the shaft hole 73 is smaller than the outer diameter of the mandrel 831, β is an external force to force the respective position members 72. The deformation, and then the hole-shaped expansion (10) facilitates the end of the 831, and then the each member 72 is embedded in the buckle groove gw. 201210178 丄 丄 ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' At a certain position, the more deformation amount is the portion where the limit member 72 has a uniform thickness, so that the portion is prone to crack or even break during the deformation process. Referring to Figure 5, there is another conventional buckle 9 structure. The buckle 9 also includes a ring body 91 and a plurality of limiting members 92. The center of the ring body 91 has an inner hole 911 ' Each of the limiting members 92 is connected to the wall of the inner hole 911 of the body 91 obliquely downward, and each of the limiting members 92 is formed with a shaft hole 93. However, the respective secret members 92 of the conventional buckle 9 are inclined to set θ to reduce the deformation amount of the root portions of the respective retaining members 92. However, the thickness of each of the restricting members 92 is still -' (10) without rotation. The decision (4) pin has the disadvantage that the limit member 92 has a uniform-thickness portion, so that cracks or even breaks are easily generated. And when the respective limiting members 72, 92 of the conventional buckles 7 and 9 are broken, the broken members 72, 92 fall inside the shaft tube 811, and follow the mandrel 831 continuously in the shaft tube 811. Internal turbulence collisions produce noise. Moreover, when a part of the limiting members 72, 92 are broken, the overall strength of each of the limiting members 72, the latching groove 832 that is embedded in the spindle 831 is also reduced, so when the motor 8 is subjected to an external force impact, It is easy to cause the rotors to fall off. SUMMARY OF THE INVENTION An object of the present invention is to provide a buckle for a motor spindle which, when applied to a motor, is not susceptible to cracking or cracking during assembly, and has a long service life. 201210178 Another object of this month is to provide a buckle for the motor spindle that can be used to avoid noise and prevent the rotor from falling out when used in a motor. The buckle of the motor spindle according to the present invention comprises: a ring body forming an inner hole; and a plurality of limiting members each having a binding end and a card end end j. The inner wall of the inner hole, the latching end of each of the limiting members extends from the inner wall of the inner hole toward the central portion and surrounds the shaft to form a shaft hole, and the limiting member has an upper surface and a lower surface; wherein each of the limiting positions The thickness of the mountain is the axial distance between the upper surface and the lower surface, and the thickness of the joint is the largest. The thickness of the end of the card is the smallest, and the thickness of each of the limiting members is directed toward the card. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The above and other objects, advantages and advantages of the present invention will become more apparent from the following description of the preferred embodiments of the invention. As shown in the sixth and seventh embodiments, the buckle i of the first embodiment of the present invention comprises a ring body 11 and a plurality of limiting members 12. The inner ring hole (1) is formed in the center of the ring body 11, and the inner hole is connected to the inner hole The top surface 112 of the % body 1 and a bottom surface 113. Each of the limiting members has a joint end 121 and a card The connecting end 121 of each of the limiting members 12 is connected to the inner wall of the inner hole Hi of the ring body n, and the latching end 122 of each of the limiting members 12 is formed by the inner wall of the inner hole extending toward the center. The shaft hole 13. Each of the limiting members 12 has an upper surface 123 and a lower surface 124 ′, wherein the upper surface 123 is directed to the top surface 112 of the body 11 , and the lower surface 124 faces the bottom surface of the ring body u 201210178 113. The upper surface 123 and the lower surface i24 of each of the limiting members 〖2 may be a plane, a curved surface or a combination of a plane and a curved surface, and each of the limiting members 12
結合端121朝向該卡㈣122呈漸縮。 在本只施财，該上表面123及下表面124均為弧面，且 該上表面123及下表面124較佳為對稱，該結合端⑵之 厚度（τι)最大，該卡掣端122之厚度（τ2)最小，使各 該限位件I2之厚度係由該結合端⑵朝向 形成連續地漸縮。 、清參照第6及8 ®所示’本發明第-實關之扣環1 運用於-馬達2時’該馬達2係包含有—基座2卜一定子 及轉子23，該基座21具有一麵管211，該扣環^係 置入該轴管211中，該軸管211另置入有-軸承212，且 =定子22係固疋於該軸管211外周。該轉子具有一輪 轂231及一心軸232，該心軸232 一端連接該輪轂231，且 鄰近該心轴232另-端之外周緣設有一扣槽2咖，且該心 轴232可穿過該軸承212及該扣環！之軸孔13，使各該限 位件12針於該扣#现，嫌制該心轴232僅能在該 軸管211中旋轉且無法脫離。 /再參照第7及9圖所示，當該馬達2之心軸232穿過 袁1之轴孔13時，係利用該心軸232之端部擠壓而迫 使各該限位件12㈣，進而使該轴孔13形錢孔以便於 ，匕軸232之糕部通過，並使各該限位件12之卡掣端 散卡於該扣槽232a。而且，由於各娜位件12之厚度係 201210178 由該結合端121朝向該卡掣端122形成連續地漸综， 該限位件12承受該心轴232之端部賴而變形時，可二 各該限位件12之變形量集中於某一特定位置，所以 在變形的過程中產生裂紋或斷裂。 奋 5月，w弟10圖所示，本發明 ==髓3卜内孔3„、頂面312、底面313 32、結合端32卜卡掣端322、上表面如、下表面似及 孔33等構造特徵。相較於前述第一實施例，本第二 面MS及下表面Μ4為非對稱，且各該限位件』 =度也是由該結合端321朝向該卡掣端322形成連續地 成蚀另外’該上表面Μ3係由4不同曲率之弧面所構 ，使該上表面323與該卡掣端322之鄰接處形成 弧部323a。因此，本第二實施例除了各該限位件％ 易在變形的過程中產生裂紋或斷裂，該心軸232之頂端穿 過該軸孔33時，亦能夠藉由該導孤部323a之引導而更容 易穿過該轴孔33。 如上所述，本發明各該限位件之厚度係由該結合端朝 f該卡掣端呈連續_縮，當各娜位件承受該心轴之端 而變形時’可避免各祕位件之變形量集中於某一 特定，置，所以不容易在變形的過程中產生裂紋或斷裂， 使用哥'命長。 ，發明各該限位件不容易在變形的過程中產生裂紋 :’故運用於馬達時’可避免影響該心軸旋轉之順暢 生及避免產生噪音，且各該限位件亦能夠穩固地喪卡於該 心軸之扣槽，以防止轉子脫落。 201210178 另外’本發明之上表面與針科之鄰接處形成有導 孤部，因此該心軸之頂端穿過該軸孔時，可藉由該導弧部 之引導而更容易穿過該軸孔。 雖然本發明已利用上述較佳實施例揭示，然其並非用 以限定本發明’任何_胃此技藝者在不_本發明之精神 和範圍之内，相對上述實關進行各種更動與修改仍屬本 發明所保護之技術料，因此本發明之_當視後附 之申請專利範圍所界定者為準。 【圖式簡單說明】 第1圖：第一種習知結構之立體外觀及局部剖視圖。 第2圖：第一種習知結構之平面剖視圖。 第3圖.第一種習知結構運用於馬達之平面剖視圖。 第4圖：第一種習知結構之實施狀態圖。 第5圖：第二種習知結構之實施狀態圖。 第6圖：本發明第一實施例之立體外觀及局部剖視圖。 第7圖：本發明第一實施例之平面剖視圖。 第8圖：本發明第一實施例運用於馬達之平面剖視圖。 第9圖：本發明第一實施例之實施狀態圖。 第10圖：本發明第二實施例之實施狀態圖。 【主要元件符號說明】 〔本發明〕 1 扣環 11環體 出内孔 112頂面 113底面 12 限位件 i S } —9 — 201210178 121 結合端 122 卡掣端 123 上表面 124 下表面 13 軸孔 2 馬達 21 基座 211 轴管 212 轴承 22 定子 23 轉子 231 輪穀 232 心轴 232a扣槽 3 扣環 31 環體 311 内孑L 312 頂面 313 底面 32 限位件 321 結合端 322 卡掣端 323 上表面 323a導弧部 324 下表面 33 轴孔 〔習知〕 7 扣環 71 環體 711 内孑L 72 限位件 73 轴孔 8 馬達 81 基座 811 軸管 812 軸承 82 定子 83 轉子 831 心轴 832 扣槽 9 扣環 91 環體 911 内孑L 92 限位件 93 轴孔 —10 —The joint end 121 tapers toward the card (four) 122. In the present invention, the upper surface 123 and the lower surface 124 are curved surfaces, and the upper surface 123 and the lower surface 124 are preferably symmetrical, and the thickness (τι) of the bonding end (2) is the largest, and the card end 122 is The thickness (τ2) is minimized such that the thickness of each of the stoppers I2 is continuously tapered from the joint end (2) toward the formation. Referring to Figures 6 and 8®, when the buckle 1 of the present invention is applied to the motor 2, the motor 2 includes a base 2 and a rotor 23, and the base 21 has A tube 211 is inserted into the shaft tube 211. The shaft tube 211 is additionally provided with a bearing 212, and the stator 22 is fixed to the outer circumference of the shaft tube 211. The rotor has a hub 231 and a spindle 232. One end of the spindle 232 is connected to the hub 231, and a peripheral groove is disposed adjacent to the outer periphery of the spindle 232, and the spindle 232 can pass through the bearing. 212 and the buckle! The shaft hole 13 allows each of the stoppers 12 to be pinned to the buckle. It is assumed that the spindle 232 can only rotate in the shaft tube 211 and cannot be disengaged. / Referring again to Figures 7 and 9, when the mandrel 232 of the motor 2 passes through the shaft hole 13 of the Yuan 1, the end portion of the mandrel 232 is pressed to force each of the limiting members 12 (4), and further The shaft hole 13 is formed with a money hole so that the cake portion of the shaft 232 passes, and the latch end of each of the limiting members 12 is loosely engaged with the buckle groove 232a. Moreover, since the thickness of each of the position members 12 is 201210178, the joint end 121 is continuously and gradually formed toward the latch end 122. When the limit member 12 is deformed by the end of the spindle 232, The amount of deformation of the stopper 12 is concentrated at a specific position, so cracks or breaks occur during the deformation. Fen May, shown in Figure 10, the present invention == pith 3 inner hole 3 „, top surface 312, bottom surface 313 32, joint end 32 掣 掣 end 322, upper surface such as, lower surface and hole 33 Compared with the foregoing first embodiment, the second surface MS and the lower surface Μ4 are asymmetric, and each of the limiting members is also formed by the bonding end 321 toward the latching end 322 continuously. In addition, the upper surface Μ3 is formed by four curved surfaces of different curvatures, such that the upper surface 323 and the adjacent end portion 322 form an arc portion 323a. Therefore, the second embodiment except for each of the limits The % is liable to cause cracks or breaks during the deformation process, and when the tip end of the mandrel 232 passes through the shaft hole 33, it can be more easily passed through the shaft hole 33 by the guiding of the guiding portion 323a. The thickness of each of the limiting members of the present invention is continuously contracted by the binding end toward the latching end, and the deformation of each of the secret parts can be avoided when the respective nano-positions are deformed by the end of the mandrel. The amount is concentrated on a specific, set, so it is not easy to produce cracks or breaks in the process of deformation, using the brother's life. The limit member is not easy to crack during the deformation process: 'When used in the motor', it can avoid affecting the smooth rotation of the mandrel and avoid noise, and each of the limit members can also be firmly stuck in the heart. The shaft is grooved to prevent the rotor from falling off. 201210178 In addition, the upper surface of the present invention is formed with a guiding portion adjacent to the needle, so that the leading end of the mandrel can pass through the shaft hole. It is easier to guide through the shaft hole. Although the present invention has been disclosed by the above-described preferred embodiments, it is not intended to limit the invention, and the skilled person is not within the spirit and scope of the invention. Various changes and modifications to the above-mentioned actual conditions are still the technical materials protected by the present invention, and therefore, the invention is defined by the scope of the patent application attached thereto. [Simple description of the drawings] Figure 1: First A perspective view and a partial cross-sectional view of a conventional structure. Fig. 2 is a plan sectional view showing the first conventional structure. Fig. 3 is a plan sectional view showing the first conventional structure applied to a motor. Fig. 4: The first type Knowledge structure Fig. 5 is a perspective view showing a state of implementation of a first conventional structure. Fig. 6 is a perspective view and a partial cross-sectional view showing a first embodiment of the present invention. Fig. 7 is a plan sectional view showing a first embodiment of the present invention. Figure 8 is a plan sectional view showing a first embodiment of the present invention. Fig. 9 is a view showing an implementation state of the first embodiment of the present invention. Fig. 10 is a view showing an implementation state of the second embodiment of the present invention. Description] [Invention] 1 Retaining ring 11 ring body Outer hole 112 Top surface 113 bottom surface 12 Restricting member i S } —9 — 201210178 121 Bonding end 122 Clamping end 123 Upper surface 124 Lower surface 13 Shaft hole 2 Motor 21 Base 211 Shaft tube 212 Bearing 22 Stator 23 Rotor 231 Wheel 232 Mandrel 232a Buckle 3 Buckle 31 Ring 311 Inner 孑L 312 Top surface 313 Bottom surface 32 321 Joint end 322 Cartridge 323 Upper surface 323a Arc guide 324 Lower surface 33 Shaft hole [General] 7 Buckle 71 Ring body 711 Inner 孑 L 72 Limiter 73 Shaft hole 8 Motor 81 Base 811 Shaft tube 812 Bearing 82 Stator 83 Rotor 831 Mandrel 832 Buckle 9 L 92 larvae stopper member 911 within the shaft hole 93 ring 91 ring -10--