M298274 八、新型說明： 【新型所屬之技術領域】 本創作係提供—種可防止_脫落的馬雜構，《偏-種適用 於光學鏡頭模組中用以驅動鏡頭變焦、調焦，可防止螺帽脫落的馬達 結構。 【先前技術】 按，相機賴之M、_、過程通钱藉馬達轉動來賴，因此在 具有光學變焦功能之相機鏡财馬達是_個不可缺少的構件。一種習 知馬達結構如第一圖所示，馬读$另 巧達5具有一轉軸52，轉軸％前端設計爲 一導螺桿51，導螺桿51之_大於轉軸52之軸經，因此二者表面 之間形成-臺階。具有内螺孔61之螺帽6係組裝於馬達5的導螺才⑼ 上，隨著馬達5之導螺桿51的轉動，螺帽6可沿馬達5之軸線方向進 退移位。然而，在相機自動對焦（Aut_ticF㈣㈣，則的調整過程 中’螺中目6會在㈣干51上作直線運動，然當檢測訊號誤判時，馬達 可能會發生驅動過頭的情形，致使螺帽6 一直移動至導螺桿Μ鄰接於 轉軸52之末端終點。由於轉轴51之軸徑小於導螺桿51之轴徑，因此 螺帽6將會自導螺桿Μ上脫離而滑落至轉轴η上，造成相機卡死， 無法作動，需要分解鏡财可對其進行修理。而此情形會造成修理上 困擾及工時增加，影響産量。 【新型内容】 本創作之目的在於提供—種可防賴舰落的馬達結構，以避免出 M298274 乂二在導私上作直線獅時，騎軸過頭而使螺帽脫離導螺 g落至轉轴上’造成相機卡死，無法作動等問題。 依據本創作目的而提供的可防止螺帽脫落的馬達結構，包括馬達、 螺中目=簀，其中馬達之前端面延伸出一轉軸，以及與轉軸相接爲一 導螺桿至騎前端面具有—最小距離；螺帽係套接於該 干上’並可隨著馬達之猶而沿導螺桿魏移位，彈簣係設置於 =螺=馬達之間，其包括抵靠於馬達之前端面上的第—抵端部及相 =另:端之第二抵端部’第二抵端部與第—抵端部間具有最小壓縮長 度’其中，峨姻術爾驗馬稍版最小距離。 本創作所提供之鱗結構，_在鱗與魏桿之騎置彈菁結 構’且彈㈣姚嶋不樣瓣至嫩端面之最小距離， 當螺帽在導螺桿上作直線運動時，即使馬達驅動辆，螺帽亦會 因無簧之卩續㈣會脫離導螺桿滑落至轉軸上，造油機卡死、無法 作動丰問題。 【實施方式】 社。月參閱第二圖及第三圖所示’本創作提供之可防止螺帽脫落的馬達 =構，包括馬達丨、螺巾胃2及彈簧3 ’其巾騎丨具有電源極柱μ及 固定板i3及前端面15，一轉軸12貫穿設置於馬達i中部並自其前端 面15延伸而出’―導螺桿u與轉軸12相接爲_體並進—步向前延伸， 、表面πχ有驗結構，導螺桿u至馬達丨前端面Μ具有最小距離 R’如第二圖所標示’該最小距齡_導螺桿η與_2交接處 M298274 至馬達1的前端面15的距離。導螺桿U之軸徑稍大於轉軸12之軸徑。 請繼續參閱第二圖所示，螺帽2係套接於該導螺桿〗丨上，並可隨 著馬達1之轉動而沿導螺桿11進退移位。其具有面向馬達丨前端面15M298274 VIII. New description: [New technical field] This creation provides a kind of horse structure that can prevent _ shedding. "Partial-type is suitable for optical lens module to drive lens zoom and focus adjustment. The motor structure with the nut off. [Prior Art] Press, the camera depends on the M, _, the process money is transferred by the motor, so the camera lens with optical zoom function is an indispensable component. A conventional motor structure is as shown in the first figure. The horse read $5 has a rotating shaft 52. The front end of the rotating shaft is designed as a lead screw 51. The lead screw 51 is larger than the shaft of the rotating shaft 52, so the surfaces thereof Formed between - steps. The nut 6 having the inner screw hole 61 is assembled to the guide screw (9) of the motor 5. As the lead screw 51 of the motor 5 rotates, the nut 6 can be moved forward and backward in the axial direction of the motor 5. However, in the camera autofocus (Aut_ticF (four) (four), during the adjustment process, the screw will be linearly moved on the (four) dry 51, but when the detection signal is misjudged, the motor may overdrive, causing the nut 6 to Moving to the lead screw Μ adjacent to the end point of the rotating shaft 52. Since the shaft diameter of the rotating shaft 51 is smaller than the shaft diameter of the lead screw 51, the nut 6 will be detached from the lead screw and slide down to the rotating shaft η, causing the camera It is stuck, unable to move, and needs to be disassembled to repair it. This situation will cause troubles in repair and increase in working hours, affecting production. [New content] The purpose of this creation is to provide a kind of anti-lost ship. The motor structure is used to avoid the problem that when the M298274 is used as a straight lion in the private guide, the shaft is over-headed and the nut is disengaged from the guide screw and falls onto the rotating shaft, causing the camera to be stuck and unable to move. The motor structure is provided to prevent the nut from falling off, including the motor and the screw, wherein the front end of the motor extends out of a rotating shaft, and the rotating shaft is connected to a lead screw to the front end surface. a minimum distance; the nut is sleeved on the stem' and can be displaced along the lead screw with the motor, and the magazine is disposed between the = screw = motor, which includes the front end of the motor The first-butting end portion and the phase=the other end: the second abutting portion of the end has a minimum compression length between the second abutting end portion and the first abutting end portion, wherein the minimum distance of the horse is determined. The scale structure provided, _ in the scale and the Wei rod riding the elastic structure" and the bomb (four) Yao Wei does not sample the minimum distance to the tender end, when the nut moves linearly on the lead screw, even if the motor drives The nut will also slip off the lead screw to the shaft due to the absence of the spring. The oil machine will be stuck and cannot move. [Embodiment] Society. See the second and third figures for the month. The motor provided by the present invention can prevent the nut from falling off, including the motor cymbal, the screw stomach 2 and the spring 3'. The towel has a power pole μ and a fixing plate i3 and a front end surface 15, and a rotating shaft 12 is disposed through The middle portion of the motor i extends from the front end surface 15 to form a 'guide screw u and the shaft 12 is connected to the body _ - step forward, the surface π χ has a structure, the lead screw u to the front end of the motor Μ has a minimum distance R' as indicated in the second figure 'the minimum age _ lead screw η and _2 junction M298274 to the motor The distance of the front end face 15 of the lead screw. The shaft diameter of the lead screw U is slightly larger than the shaft diameter of the rotating shaft 12. Please continue to refer to the second figure, the nut 2 is sleeved on the lead screw and can be driven by the motor. 1 rotates and moves forward and backward along the lead screw 11. It has a front end face 15 facing the motor
之第一側面20及另一側之第二侧面（未標號），一螺紋孔21貫穿第一 侧面20與第二側面，該螺紋孔21具有與前述導螺桿u之螺紋相匹配 的内螺紋。彈簧3係設置於親帽2與馬達丨之間，賴_個較佳選 擇，在本實施例中該彈簧係為一螺旋彈簧。該彈簧3具有略大於馬達工 之導螺桿11軸徑之内徑尺寸，從而可供導螺桿u穿入其中。該彈箬3 包括第-抵端部及相對另-端之第二抵端部32， 32與第-抵端㈣娜有⑽議獨小= η ’亦即彈簧3之常度T1及最小壓錄度τ2。該最小壓縮長度 Τ2不小於導螺㈣至馬達！前端面15之最小距離r。做爲一個較佳 方案，彈簧3之最小壓縮長度T2係略大於前述導螺桿η至馬達i前 端面15之最小距離r。 ❼閱第一圖所不’彈黃3之第—抵端部Μ係抵靠於馬達1之前 端面15上’第二抵料32顺過熟12鱗鄉U娜。在相機 自動對焦調整過程，螺帽2在1總4曰， h在¥螺桿11上作直線運動，當檢測訊號誤 判或者失效，致使騎驅動過頭，造成螺帽2朝轉軸η方向移動過 度時，在螺帽2抵達導螺桿11與她12交接處之前，螺帽2之第-側 面20會抵觸彈簧3之第二抿 # 32。馬達1之導螺桿u繼續轉動， 則螺帽2繼續向馬達】前端自 万向移動，同時壓縮彈簧3。藉由彈 M298274 簣32提供之彈性壓力，可減緩甚至阻止螺帽2繼續移動。且因彈箬3 之最小壓縮長度T2不小於導螺桿u至馬達丨前端面15之最小距離R， 因此藉由彈簧3可阻止螺帽2從導螺桿51脫離而滑落至轉軸12上， 藉此避免造成相機卡死、無法作動之問題。 爰依法提出專利申 舉凡熟習本案技術 皆涵蓋於後附之申 綜上所述，本創作確已符合新型專利之要件 請。惟，以上所述者僅爲本創作之較佳實施方式 之人士援依本創作之精神所作之等效師或變化 請專利範圍内。 M298274 【圖式簡單說明】 第一圖係一種習知馬達結構之立體分解圖。 第二圖係本創作可防止螺帽脫落之馬達結構的立體分解圖。 第三圖係第二圖所示馬達結構之裝配示意圖。 【主要元件符號說明】 馬達 1 導螺桿 11 轉軸 12 固定板 13 電源極柱 14 前端面 15 螺帽 2 第一側面 20 螺紋孔 21 彈簣 3 第一抵端部 31 第二抵端部 32The first side 20 and the second side of the other side (not labeled) have a threaded hole 21 extending through the first side 20 and the second side, the threaded hole 21 having an internal thread that matches the thread of the lead screw u. The spring 3 is disposed between the cap 2 and the motor cymbal. Preferably, in the embodiment, the spring is a coil spring. The spring 3 has an inner diameter dimension slightly larger than the shaft diameter of the lead screw 11 of the motor, so that the lead screw u can be inserted therein. The magazine 3 includes a first abutting end portion and a second abutting end portion 32 opposite to the other end, 32 and a first end portion (four) Na have a (10) independent small = η ', that is, a constant T1 and a minimum pressure of the spring 3 Record τ2. The minimum compression length Τ2 is not less than the guide screw (four) to the motor! The minimum distance r of the front end face 15. As a preferred solution, the minimum compression length T2 of the spring 3 is slightly larger than the minimum distance r of the lead screw η to the front end surface 15 of the motor i. ❼ 第一 第一 第一 ’ ’ ’ ’ ’ ’ ’ ’ ’ ’ ’ ’ ’ ’ ’ ’ ’ ’ ’ ’ ’ ’ ’ ’ ’ ’ ’ ’ ’ ’ ’ ’ ’ ’ ’ ’ ’ ’ ’ During the camera auto-focus adjustment process, the nut 2 is linearly moved at 1 曰, h on the ¥ screw 11, and when the detection signal is misjudged or fails, causing the ride to overdrive, causing the nut 2 to move excessively toward the rotation axis η, Before the nut 2 reaches the junction of the lead screw 11 and her 12, the first side 20 of the nut 2 will abut the second 抿 #32 of the spring 3. When the lead screw u of the motor 1 continues to rotate, the nut 2 continues to move toward the motor from the front end while compressing the spring 3. By the elastic pressure provided by the M298274 篑32, the nut 2 can be slowed down or even prevented from moving. And because the minimum compression length T2 of the magazine 3 is not less than the minimum distance R of the lead screw u to the front end surface 15 of the motor, the spring 3 can prevent the nut 2 from being detached from the lead screw 51 and slipping onto the rotating shaft 12, thereby Avoid problems that cause the camera to become stuck and unable to move.提出Proposed patent application according to law All the techniques in this case are covered in the attached appendix. This creation has indeed met the requirements of the new patent. However, the above is only the equivalent of the spirit of the creation of the person who is the preferred embodiment of this creation. M298274 [Simple description of the drawings] The first figure is an exploded perspective view of a conventional motor structure. The second figure is an exploded view of the motor structure that prevents the nut from falling off. The third figure is a schematic view of the assembly of the motor structure shown in the second figure. [Main component symbol description] Motor 1 Lead screw 11 Rotary shaft 12 Fixing plate 13 Power pole 14 Front end face 15 Nut 2 First side 20 Threaded hole 21 Magazine 3 First abutting part 31 Second abutting part 32