201247448 六、發明說明： 【發明所屬之技術領域】 本發明是有關於-種車燈，特別是指一種具有投射式 遠近燈切換效果之車燈。 【先前技術】 為了因應不同路況與視線需求，目前安裝在汽、機車 等機動車輛别方之技射式（pGly_Ellips〇id 簡稱 車燈，大都具有可控制遠、近燈切換之模式設計。如圖】 所示，一種現有之車燈丨包含：一個中空的基座u、一個 設置在該基座11前側的燈罩12、一個安裝在該基座u上 且能發射光線的發光件13、一個位在該發光件13前方的 遮光板14、一支將該遮光板14可旋擺地安裝在該基座u 内的樞轴15，及一個可被控制而帶動該遮光板14的電磁 閥16。該遮光板14具有一個供該軸桿15安裝的柩接部 141、一個由該樞接部141往上延伸且位在該發光件13前 方的遮擋部142，及一個由該樞接部141往下延伸且銜接 於該電磁閥16的受推部143。 使用時，當該電磁閥16未作動時，該遮光板14未偏 擺而直立在該發光件13前方，此時該發光件〖3的光線經 該遮光板14之遮光與該基座U的反射作用後，向前投射 的光線呈現近燈效果《而當該電磁閥16向前推動該遮光 板Μ之受推部143，使該遮光板14以該軸桿15為中心， 相對於該基座11朝箭頭17所示方向旋擺一角度時（如圖中 假想線所示），將會使得發光件！ 3向前投射出去的光線呈 201247448 現遠燈效果。 由上述可知，藉由該電磁閥16帶 擺’使該發光件13發出的朵蝻典μ 偏 ^的切受到不同程度的遮播作用 後，可改變光線投射區域的大 刃穴小以達到遠、近燈切換之 效果’但是由於上_丨係令該電磁間16直接帶動該 遮先板14偏擺，所以在該遮光板14、該轴㈣與該電磁 閥16間的相對關係確定之下，該電磁閥16需要移動較長 距離才能推動該遮光板14移動既定的角冑，例如必需向 前推動2關才能使該遮光板14順時針旋擺4。，如此一來， 將會拖累遠、近燈的切換速度’也會相對佔用該車燈i内 部空間’令該車燈！體積難以縮減’因此上述設計仍有待 改善。 【發明内容】 因此，本發明之目的，即在提供一種能快速切換遠、 近燈光效果的車燈。 於是，本發明車燈’包含：一個燈座單元、一個發光 單元、一個遮光單元，及一個驅動單元。該燈座單元包括 一個基座，及一個透光且設置在該基座前側的燈罩，該基 座與該燈罩共同界定出一個投射空間。該發光單元包括一 個安裝在該基座上且能發射光線的發光件。該遮光單元包 括一片位在該投射空間内的遮光板、一支將該遮光板可旋 擺地女裝在該發光件前方的遮光轴桿，及一個帶動該遮光 板擺動的連動桿，該連動桿具有一個對應位於該遮光軸桿 上方且可活動地銜接於該遮光板的連接部、一個遠離該連 201247448 接部的受推部，及—個位在該連接部與該受推部之間且樞 接於该遮光板前方的連動樞接部。該驅動單元包括一個可 帶動該連動桿之受推部的電磁閥，該電磁閥可被控制而帶 動該遮光單元相對於該燈座單元’在—個該電磁閥不推動 該連動桿而使該遮光板垂直地暨立在該發光件前方之近 燈位置，及-個該電磁閥向前推動該連動桿而帶動該遮光 板朝向該發光件傾斜之遠燈位置間切換。 本發明之功效在於：藉由該連動桿的設置，使得該電 磁閥作動時，可藉由該連動桿與該遮光板連動偏擺作用， 大幅改變遮光板的移動位置，以達到快速切換遠、近燈光 效果的優點。 【實施方式】 有關本發明之前述及其他技術内容、特點與功效，在 以下配合參考圖式之一個較佳實施例的詳細說明中將可 清楚的呈現。 參閱圖2與圖3，本發明車燈之較佳實施例，是安裝 在一汽、機車等機動車輛（圖未示）前側，可於不同狀態下 投射出近燈光或遠燈光，並包含：一個燈座單元2、一個 發光單元3、一個遮光單元4，及一個驅動單元5。當然， 本發明還包含設置於所述機動車輛前側並供上述單元安 裝之一個外殼（圖未示）與一個殼罩（圖未示），由於所述構件 並非本發明重點，所以在此不再詳細說明。 該燈座單元2包括一個基座21，及一個透光且設置在 該基座21前側的燈罩22。該基座21與該燈罩22共同界 201247448 定出一個投射空間23。該基座21為一個内周面能反射光 線之反光罩。 該發光單π 3包括一個水平安裝在該基座21上且能 發射光線的發光件31。該發光單元3在實施上還包括有一 些連接電路及其他構件，惟其並非本發明重點，所以在此 不再詳細說明。 該遮光單元4包括一片位在該投射空間23内的遮光 板4卜-支將該遮光板41可旋擺地安裝在該發光件31前 方的遮光軸桿42、—個帶動該遮光板41擺動的連動桿 43 ’及-支將該連動桿43可旋擺地樞接在該遮光板41前 方的連動軸桿44。 該遮光板41具有一個遮光枢接部4ιι、一個由該遮光 樞接部4U往上延伸且位在該發光件31前方的遮擔部 412’及—個由遮擋部412往前彎釣延伸的凸鉤部413。該 遮光轴桿42安裝於該遮光板Μ之遮光Μ接部411。該連 動桿43具有一個對應位於該遮光軸桿42上方且可活動地 銜接於該凸釣部413的連接部431…個遠離該連接部431 ”推：432’及一個位在該連接部43ι與該受推部432 Μ3。該受推部432位在該連動框接部 卩431的下方。該連動轴㈣位在該遮光轴 m，且安裝於該連動桿43之連動樞⑽μ… 432:電磁：Γ包括一個可帶動該連動㈣之受推部 :電磁閥51。該電磁閥51具有—個閥座川，及一個 地由該閥座川前側往前水平突伸且銜接該受推部 201247448 432的閥桿512。當然該驅動單元5還包括有其他驅動構 件及固定構件，惟其並非本發明重點，所以在此不再詳細 說明。 使用時’該電磁閥51可被控制而帶動該遮光單元4 相對於該燈座單元2,在一個近燈位置（見圖3之實線狀態） 及一個遠燈位置（見圖3之假想線狀態）間切換。如圖3之 實線狀態所示，在該近燈位置時，該電磁閥5丨未被通電 啟動，所以不推動該連動桿43，而讓該遮光板41垂直地 豎立在該發光件31前方，使得發光件31發出的光線受到 該遮光板41的遮擋及該基座21的反射，導致投射出的光 線路徑偏向下方，而呈現出近燈模式。 .欲切換至該遠燈位置時，可通電啟動該電磁閥5丨，令 該電磁閥51如圖3之假想線狀態所示，該閥桿512向前 突伸推動該連動桿43之受推部432，使該連動桿43以該 連動軸桿44為中心旋擺推動該遮擋部412,帶動該遮光板 41以該遮光軸桿42為中心朝箭頭6所示方向旋擺，使該 遮擋部412㈤向該發光件31 4頃斜一角度而移至該遠燈位 置，此時該發光件31發出的光線局部受到該遮光板41的 遮擋及該基座21的反射，且光線被遮蔽的區域較小於上 述近燈位置，使得投射出的光線路徑既直且遠，乃呈現出 遠燈模式。 …需要說明的是，該車燈還可以包含_個安裝在該燈座 單疋2與該遮光單元4之間的復位單元（圖未示），該復位 單元包括至少一個彈性件（圖未示），當該遮光單元4由近 201247448 至遠燈位置時，即會帶動該彈性件扭轉而蓄積 弹性復位力，故當該電_ 51 7即會釋放其彈性復位力，並帶動該遮光丄二 =置二合_…用，達到遠、近燈： 之目的惟其為-般設計’所以不再冗述。 綜上所述，本發明車燈主要是在該遮光板41盥該電 磁間51間，可活動地銜接該連動桿43,以藉由該連動桿 之連動偏擺作用，加大該電磁間51與該遮光板41間的 作動關係’使得該電_ 51僅向前推動較小的距離，即 可大幅改變遮光板41的位置，例如當該電磁間51如同習 知般向前推動2咖時，將令該遮光板41旋擺u。，較大於 習知之4，由此反推可知’若欲遮光板41達到車燈規定 的偏擺角度時’該電磁％ 51僅需移動較短於習知的距離 即可，亦即可迅速改變遮光41遮蔽光線的狀態，具有 快速切換遠、近燈光效果的特點，本發明更可相對縮小體 積’故嫁貫能達成本發明之目的。 惟以上所述者，僅為本發明之較佳實施例而已，當不 能以此限定本發明實施之範圍，即大凡依本發明申請專利 範圍及發明說明内容所作之簡單的等效變化與修飾，皆仍 屬本發明專利涵蓋之範圍内。 【圖式簡單說明】 圖1是一種現有之車燈的一部份剖視示意圖； 圖2是本發明車燈的一較佳實施例的一立體分解圖； 201247448 圖3是該較佳實施例之一部份剖視示意圖。 201247448 【主要元件符號說明】 2 ....... •…燈座單元 42…… ----遮光轴梓 21··.· •…基座 43·..·· •…連動桿 22··... •…燈罩 431… •…連接部 23…… •…投射空間 432… •…受推部 3…… •…發光單元 433… •…連動樞接部 31"... •…發光件 44·...· •…連動軸桿 ____4* g -5- C ...... ....择T?去么结 > 4 ...... J 聚/早兀 41··... •…遮光板 51 •…電磁閥 411 ·· 遮光枢接 511… •…閥座 412… •…遮擋部 512… •…閥桿 413… …·凸鉤部 6 ....... •…箭頭 10201247448 VI. Description of the Invention: [Technical Field] The present invention relates to a type of vehicle lamp, and more particularly to a vehicle lamp having a projection type near-far light switching effect. [Prior Art] In order to respond to different road conditions and line-of-sight requirements, it is currently installed in the technical model of motor vehicles such as steam and locomotives. (PGly_Ellips〇id is abbreviated as the headlights, and most of them have a mode design that can control the switching between far and near lights. As shown, a conventional lamp lamp includes: a hollow base u, a lamp cover 12 disposed on the front side of the base 11, a light-emitting member 13 mounted on the base u and capable of emitting light, and a position A light shielding plate 14 in front of the light-emitting member 13, a pivot shaft 15 in which the light shielding plate 14 is swingably mounted in the base u, and a solenoid valve 16 that can be controlled to drive the light shielding plate 14. The visor 14 has a splicing portion 141 for mounting the shaft 15, a blocking portion 142 extending upward from the pivoting portion 141 and located in front of the illuminating member 13, and a pivoting portion 141 The light-receiving portion 14 is extended and connected to the urging portion 143 of the electromagnetic valve 16. In use, when the electromagnetic valve 16 is not actuated, the visor 14 is not yawed and stands in front of the illuminating member 13, and the illuminating member is at this time. Light passing through the visor 14 and the susceptor U After the action, the forwardly projected light exhibits a near-light effect. When the solenoid valve 16 pushes the pushed portion 143 of the shutter, the shutter 14 is centered on the shaft 15 with respect to the base. When the seat 11 is swung at an angle in the direction indicated by the arrow 17 (as indicated by the imaginary line in the figure), the light projected forward by the illuminating member 3 will have a long-distance light effect of 201247448. From the above, it is known that The solenoid valve 16 is provided with a pendulum 'to make the cutting of the μ 蝻 偏 偏 受到 受到 受到 受到 受到 受到 受到 受到 受到 受到 受到 受到 受到 受到 受到 受到 受到 受到 受到 受到 受到 受到 受到 受到 受到 受到 受到 受到 受到 受到 受到 受到 受到 受到 受到 受到 受到 受到 受到However, since the upper electromagnetic system 16 directly drives the shielding plate 14 to yaw, the electromagnetic valve 16 needs to be moved under the determination of the relative relationship between the light shielding plate 14, the shaft (4) and the electromagnetic valve 16. A longer distance can push the visor 14 to move a predetermined angle 胄. For example, it is necessary to push 2 seconds forward to make the visor 14 rotate clockwise 4, which will drag the switching speed of the far and near lights. Will also occupy the interior space of the headlights The lamp is difficult to reduce in size. Therefore, the above design still needs to be improved. SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide a lamp that can quickly switch between near and far lighting effects. Thus, the lamp of the present invention includes: a lamp holder unit, a lighting unit, a shading unit, and a driving unit. The lamp holder unit includes a base, and a lamp cover that is transparent and disposed on a front side of the base, the base and the lampshade are defined together a light-emitting unit includes a light-emitting member mounted on the base and capable of emitting light. The light-shielding unit includes a light-shielding plate positioned in the projection space, and a light-shielding plate for the light-shielding plate a light-shielding shaft in front of the light-emitting member, and a linkage rod for driving the light-shielding plate, the linkage rod has a connecting portion corresponding to the light-shielding shaft and movably coupled to the light-shielding plate, and a distance away from the connection 201247448 The pushed portion of the joint portion and the interlocking pivot portion between the connecting portion and the pushed portion and pivoted to the front of the light shielding plate. The driving unit includes a solenoid valve that can drive the push portion of the linkage rod, and the solenoid valve can be controlled to drive the light shielding unit relative to the socket unit to prevent the linkage rod from being pushed by the solenoid valve The visor vertically aligns with the near lamp position in front of the illuminating member, and the solenoid valve pushes the linking rod forward to drive the visor to switch between the tilting position of the illuminating member. The utility model has the advantages that: by the setting of the linkage rod, when the electromagnetic valve is actuated, the linkage lever and the visor are interlocked to greatly change the moving position of the visor, so as to achieve fast switching distance, The advantage of the near light effect. The above and other technical contents, features, and advantages of the present invention will be apparent from the following detailed description of the preferred embodiments. Referring to FIG. 2 and FIG. 3, a preferred embodiment of the vehicle lamp of the present invention is mounted on the front side of a motor vehicle (not shown) such as a steam, a locomotive, etc., and can project near or far lights in different states, and includes: The lamp holder unit 2, an illumination unit 3, a shading unit 4, and a drive unit 5. Of course, the present invention further includes a casing (not shown) disposed on the front side of the motor vehicle and mounted to the unit, and a casing (not shown). Since the member is not the focus of the present invention, it is no longer Detailed description. The socket unit 2 includes a base 21 and a lamp cover 22 that is transparent and disposed on the front side of the base 21. The base 21 and the lamp cover 22 define a projection space 23 in conjunction with the 201247448. The susceptor 21 is a reflector that reflects light on the inner peripheral surface. The light-emitting unit π 3 includes a light-emitting member 31 horizontally mounted on the base 21 and capable of emitting light. The lighting unit 3 further includes some connecting circuits and other components in the implementation, but it is not the focus of the present invention, so it will not be described in detail herein. The light shielding unit 4 includes a light shielding plate 4 located in the projection space 23, and a light shielding shaft 42 that is slidably mounted in front of the light emitting member 31, and the light shielding plate 41 is driven to swing. The linkage rod 43' and the branch pivotally pivotally connect the linkage shaft 44 in front of the light shielding plate 41. The visor 41 has a light-shielding pivoting portion 4 ιι, a covering portion 412 ′ extending upward from the opaque pivoting portion 4U and located in front of the illuminating member 31 , and a slanting portion 412 extending forwardly. The hook portion 413. The shading shaft 42 is attached to the shading portion 411 of the shading plate. The linkage rod 43 has a connecting portion 431 corresponding to the light-shielding shaft 42 and movably coupled to the protruding fishing portion 413. A distance from the connecting portion 431 is pushed: 432' and a position at the connecting portion 43ι The pushed portion 432 Μ 3. The pushed portion 432 is located below the interlocking frame 卩 431. The interlocking shaft (4) is located at the light blocking axis m, and is attached to the linkage lever (10) of the linkage rod 43. 432: Electromagnetic The Γ includes a pusher that can drive the linkage (4): a solenoid valve 51. The solenoid valve 51 has a valve seat, and a ground protrudes horizontally from the front side of the valve seat and engages the pushed portion 201247448 The valve stem 512 of the 432. Of course, the driving unit 5 further includes other driving members and fixing members, but it is not the focus of the present invention, so it will not be described in detail herein. When used, the solenoid valve 51 can be controlled to drive the shading unit. 4 relative to the socket unit 2, switching between a near lamp position (see the solid line state of Fig. 3) and a high beam position (see the imaginary line state of Fig. 3), as shown by the solid line state of Fig. 3, In the near lamp position, the solenoid valve 5 is not energized Starting, so that the linkage rod 43 is not pushed, and the visor 41 is vertically erected in front of the illuminating member 31, so that the light emitted by the illuminating member 31 is blocked by the visor 41 and reflected by the pedestal 21, resulting in projection The light path is biased downward and presents a near-light mode. When switching to the remote light position, the solenoid valve 5 can be energized to activate the solenoid valve 51 as shown in the imaginary line state of FIG. The lever 512 protrudes forwardly to push the pushed portion 432 of the linkage rod 43 , and the linkage rod 43 pivots around the linkage shaft 44 to push the shielding portion 412 to drive the light shielding plate 41 to The center is swung in the direction indicated by the arrow 6, so that the shielding portion 412 (f) is moved to the position of the remote lamp at an oblique angle to the light-emitting member 31. At this time, the light emitted by the light-emitting member 31 is partially blocked by the light-shielding plate 41. And the reflection of the pedestal 21, and the area where the light is shielded is smaller than the position of the near lamp, so that the projected ray path is straight and far, and the vehicle is in a high-light mode. It should be noted that the lamp is also Can contain _ one mounted on the lamp holder single 疋 2 with a resetting unit (not shown) between the light shielding units 4, the resetting unit includes at least one elastic member (not shown), and when the light shielding unit 4 is in the position of the near-lighting device from 201272448, the elastic member is twisted. Accumulates the elastic restoring force, so when the electric _ 51 7 will release its elastic restoring force, and drive the shading 丄 2 = set _ _ ... to reach the far and near lights: the purpose is only for the general design 'so no In summary, the vehicular lamp of the present invention is mainly disposed between the visor 41 and the electromagnetic room 51, and is movably coupled to the linkage rod 43 to increase the yaw effect of the linkage rod. The actuating relationship between the electromagnetic room 51 and the visor 41 is such that the electric _ 51 is only pushed forward by a small distance, and the position of the visor 41 can be greatly changed, for example, when the electromagnetic room 51 is forwarded as conventionally. When the 2 coffee is pushed, the visor 41 will be swung. It is larger than the conventional 4, and thus the reverse push knows that if the visor 41 reaches the yaw angle specified by the vehicle lamp, the electromagnetic % 51 only needs to be moved shorter than the conventional distance, and can be quickly changed. The state in which the light shielding 41 shields the light has the characteristics of quickly switching the far and near light effects, and the present invention can relatively reduce the volume, so that the purpose of the present invention can be achieved. The above is only the preferred embodiment of the present invention, and the scope of the invention is not limited thereto, that is, the simple equivalent changes and modifications made by the scope of the invention and the description of the invention are All remain within the scope of the invention patent. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a partially cutaway perspective view of a conventional lamp; FIG. 2 is an exploded perspective view of a preferred embodiment of the lamp of the present invention; 201247448 FIG. 3 is a preferred embodiment A partial cross-sectional view. 201247448 [Description of main component symbols] 2 ....... •...Lamp base unit 42... ----Shutter shaft 梓21····•...Base 43·..··•...Linking lever 22 ··... •...shade 431... •...connecting part 23... •...projection space 432... •...subjected part 3...•...lighting unit 433... •...linked pivoting part 31"... •... Light-emitting member 44·...· •... Linking shaft ____4* g -5- C ............ Selecting T? Going to knot> 4 ...... J Poly/Early兀41··...•...shading plate 51 •...solenoid valve 411 ·· shading pivot 511... •...valve 412... •...shield part 512...•...valve 413...··bump part 6 .. ..... •...arrow 10