201141730 六、發明說明： 【發明所屬之技術領域】 本發明是有關於一種後視鏡，特別是指—種具有方。 燈的後視鏡。 【先前技術】 一般機車的前方向燈有以下幾種設置方式： 1. 如圖1所示，前方向燈11是分別設置於機車前蓋板 12的左右兩側。 2. 如圖2所示，前方向燈21是分別設置於左右把手22 的下方（因視角的關係只顯示一側）。 3·如圖3所示，前方向燈31是朝向機車行進方向地分 別設置於後視鏡32上。 上述三種前方向燈11、21、31的設置位置會依各國不 同的法規進行調整》當使用LED作為前方向燈u、21、31 時，前兩種設置位置因為有效發光面積大，且前方向燈u 、21的燈座後方空間大，而沒有LED熱衰退的問題；然而 ，第三種設置位置會因為前方向燈31被後視鏡32的鏡殼 包覆，燈座後方又被後視鏡的鏡片遮蔽，使得前方向燈31 的亮度降低而不符合法規規定。 【發明内容】 因此，本發明之目的，即在提供一種可以符合法規亮 度且具有良好散熱效果的具有方向燈的後視鏡。 於是’本發明具有方向燈的後視鏡，安裝於一機車上 ，該後視鏡包含一後視鏡單元，及一設置於該後視鏡單元 201141730 上的方向燈單元。 該後視鏡單元包括一結合於該機車上的結合座、一設 置於該結合座上的中空狀鏡殼’及一設置於該鏡殼内的鏡 片。 該方向燈單元是設置於該鏡殼上並朝向該機車的行進 方向’該方向燈單元包括一散熱件、一設置於該散熱件上 的燈座、一設置於該散熱件上的電路板、一設置於該電路 板上的發光件’及一設置於該燈座上並遮覆該發光件上的 燈蓋。 本發明之功效在於：藉由該電路板是設置於該散熱件 上而與該散熱件直接接觸，因此若該發光件是使用高功率 LED時’不但能符合法規亮度’且該發光件發光時所產生 的熱能也能傳導至該散熱件進行散逸，有效提升散熱效率 ，而該散熱件還有配重作用，提供防震效果，避免該後視 鏡單兀的鏡片於機車行進時晃動而造成視覺不清的現象。 【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兩個較佳實施例的詳細說明中將可 清楚的呈現。 在本發明被詳細描述之前，要注意的是，在以下的說 明内容中，類似的元件是以相同的編號來表示。 參閱圖4 ’為本發明具有方向燈的後視鏡5之第一較佳 實施例’安裝於-機車4上，該機車4上是安裝有兩個後 視鏡5 ’在以下的敘述中是以—個後視鏡5作說明。該後視 201141730 鏡5包含一後視鏡單元51，及一設置於該後視鏡單元51上 的方向燈單元52。 參閱圖5、6,該後視鏡單元51包括一結合於該機車4( 見圖4)上的結合座511、一設置於該結合座511上的中空狀 鏡殼512、一設置於該鏡殼512内的鏡片調整座513,及一 設置於該鏡片調整座513上且朝向相反於該機車4行進方 向的鏡片514’並界定一通過該鏡片調整座513中心點的第 一中心線L1。 # 該鏡片調整座513具有一設置於該鏡殼512内的外固 定件515、一設置於該外固定件515上並供該鏡片514設置 的鏡盤516,及一用以定位該鏡盤516的内固定件517,該 鏡盤516是夾置於該内、外固定件517、515之間，且該鏡 盤516能相對於該外固定件515轉動，以調整該鏡片514 的角度，而該鏡盤516與該鏡殼512之間形成有一間隙500 〇 該方向燈單元52是設置於該鏡殼5 12上並朝向該機車 籲 4的行進方向，該方向燈單元52包括一設置於該外固定件 515後方且位於該第一中心線L1下方的散熱件521、一設 置於该散熱件521上的燈座522、一設置於該散熱件521上 的電路板523、一設置於該電路板523上的發光件524，及 °又置於该燈座522上並遮覆該發光件524的燈蓋525 ^要 特別說明的是，該電路板523與發光件524的數量可視實 際需求調整，不以此為限。 參閱圖6、7，於本實施例中，該散熱件521是以射出 201141730 成型的方式與該燈座522 -體成型’且該散熱件52i為實 心的紹合金塊，當然該散熱件521也可以是嵌合於該燈座 522上’並以銅或是其他具有高傳導性的材質製造，不以此 為限。另外，該散熱件521、燈座522、電路板⑶、發光 件524，及燈蓋525是組裳完成後再安裝於該鏡殼512上。 由於該發光件524制時會有熱衰退的情形，因此使 用一段時間後，熱衰退的情形會使該發光件524產生的亮 度低於法規值，例如：美國法規值需達137.5坎德拉 (Candela，斗因此於本實施例中，是使用高功率LED作為 該發光件524’而高功率LED在運作過程中所產生的高熱 就能透過該散熱件521快速傳導’並能透過該鏡盤516與 鏡殼512之間的_ 5⑼散逸，而能避免熱能累積於該鏡 殼512内，進而避免該電路板⑵因過熱而有損壞的情形 〇 藉由上述設計，不但使該發光件似產生的亮度能符 s法規規A fg]日夺也此快速地排除該發光4牛524發光時產 生的熱能，而延長該方向燈單元52的使用壽命1此之外 ’由於該散熱# 521為實心的結合金塊，且設置在該鏡片 調整座513的外固定件515後方，因此該散熱件521還有 配重作用’提供防震效果，避免該後視鏡單元51的鏡片 514於機車行料晃動而造成視覺不清的縣，尤其該散熱 件521位於a亥第一中心線u下方時，其防震效果最佳。 參閱圖8 ’為本發明具有方向燈的後視鏡5之第二較佳 實施例大致類似前述該第一較佳實施例不同之處在於 201141730 :於本實施例中，該鏡片514是密合於該鏡殼512上，而 該鏡殼512還形成有多數個位於該散熱件521下方的散熱 孔518，並界定一通過該鏡片514中心點的第二中心線u ’而該散熱件521是位於該第二中心線L2下方。 藉由上述設計，除了同樣能使該發光件524產生的亮 度符合法規定之外，該發光件524運作時產生的熱能，是 透過該散熱件52丨傳導後，再經由所述散熱孔518排出， 以避免熱能累積於該鏡殼5丨2内。 綜上所述，本發明具有方向燈的後視鏡5，藉由高功率 的發光件524與該散熱# 521㈣配，不但使得亮度能符 合法規，還能有效地排除該發光件524發光時產生的熱能 ’故破實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㈣，皆仍 屬本發明專利涵蓋之範圍内。 【圖式簡單說明】 圖1是一前視圖，說明機車前方向燈的第一種設置位 置； 圖2是-側視圖，說明機車前方向燈的第二 置； 圖3是-前視圖’說明機車前方向燈的第三種設置位 圖4疋月,J視圖，說明本發明具有方向燈的後視鏡的 1 ; 201141730 第一較佳實施例； 圖5是一剖視圖，說明該第一較佳實施例中各元件的 位置； 圖6是一另一角度的剖視圖，輔助說明圖5 ; 圖7是一立體圖，說明散熱件的整體態樣；及 圖8是一剖視圖，說明本發明具有方向燈的後視鏡的 第二較佳實施例。 201141730 【主要元件符號說明】 4 機車 517 内固定件 5 後視鏡 518 散熱孔 500 間隙 52 方向燈單元 51 後視鏡單元 521 散熱件 511 結合座 522 燈座 512 鏡殼 523 電路板 513 鏡片調整座 524 發光件 514 鏡片 525 燈蓋 515 外固定件 L1 第一中心線 516 鏡盤 L2 第二中心線201141730 VI. Description of the Invention: TECHNICAL FIELD OF THE INVENTION The present invention relates to a rear view mirror, and more particularly to a type of square. Rear view mirror of the lamp. [Prior Art] The front directional lights of the general locomotive have the following settings: 1. As shown in Fig. 1, the front directional lights 11 are respectively disposed on the left and right sides of the front cover 12 of the locomotive. 2. As shown in Fig. 2, the front direction lights 21 are respectively disposed below the left and right handles 22 (only one side is displayed due to the angle of view). 3. As shown in Fig. 3, the front direction lights 31 are respectively disposed on the rear view mirror 32 toward the traveling direction of the locomotive. The setting positions of the above three types of front direction lights 11, 21, 31 will be adjusted according to different regulations of different countries. When LEDs are used as front direction lights u, 21, 31, the first two setting positions are large because of the effective light emitting area, and the front direction The rear space of the lamp holders u and 21 is large, and there is no problem of LED thermal decay; however, the third setting position is because the front direction lamp 31 is covered by the mirror case of the rear view mirror 32, and the rear of the lamp holder is rear view. The lens of the mirror is shielded, so that the brightness of the front directional light 31 is lowered without complying with regulations. SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide a rear view mirror having a directional light that can meet regulatory brightness and has a good heat dissipation effect. Thus, the rear view mirror of the present invention having a directional light is mounted on a locomotive, the rear view mirror including a rear view mirror unit, and a directional light unit disposed on the rear view mirror unit 201141730. The rear view mirror unit includes a coupling base coupled to the locomotive, a hollow mirror housing disposed on the coupling seat, and a lens disposed in the mirror housing. The directional light unit is disposed on the mirror casing and faces the traveling direction of the locomotive. The directional lamp unit includes a heat dissipating member, a lamp socket disposed on the heat dissipating member, and a circuit board disposed on the heat dissipating member. a light-emitting member disposed on the circuit board and a lamp cover disposed on the lamp holder and covering the light-emitting member. The utility model has the advantages that the circuit board is directly in contact with the heat dissipating member by being disposed on the heat dissipating member, so if the illuminating member is used not only can meet the regulatory brightness when the high-power LED is used, and the illuminating member emits light, The generated heat energy can also be transmitted to the heat dissipating member to dissipate, thereby effectively improving the heat dissipating efficiency, and the heat dissipating member also has a counterweight function to provide a shockproof effect, and the lens of the rear view mirror single lens is prevented from shaking when the locomotive travels, thereby causing vision. Unclear phenomenon. 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 of the accompanying drawings. Before the present invention is described in detail, it is noted that in the following description, similar elements are denoted by the same reference numerals. Referring to Figure 4, a first preferred embodiment of the rear view mirror 5 having a directional light of the present invention is mounted on a locomotive 4 having two rear view mirrors 5 mounted thereon. The description will be made with a rear view mirror 5. The rear view 201141730 mirror 5 includes a rear view mirror unit 51 and a directional light unit 52 disposed on the rear view mirror unit 51. Referring to FIGS. 5 and 6, the rear view mirror unit 51 includes a coupling base 511 coupled to the locomotive 4 (see FIG. 4), a hollow mirror housing 512 disposed on the coupling base 511, and a mirror body 512 disposed on the mirror. A lens adjustment seat 513 in the housing 512, and a lens 514' disposed on the lens adjustment seat 513 and facing in a direction opposite to the traveling direction of the locomotive 4 and defining a first center line L1 passing through a center point of the lens adjustment seat 513. The lens adjustment seat 513 has an outer fixing member 515 disposed in the mirror housing 512, a mirror plate 516 disposed on the outer fixing member 515 and disposed on the lens 514, and a positioning plate 516. The inner fixing member 517 is sandwiched between the inner and outer fixing members 517, 515, and the mirror plate 516 is rotatable relative to the outer fixing member 515 to adjust the angle of the lens 514. A gap 500 is formed between the mirror plate 516 and the mirror housing 512. The directional lamp unit 52 is disposed on the mirror housing 51 and faces the direction of travel of the locomotive. The directional light unit 52 includes a A heat sink 521 behind the outer fixing member 515 and located below the first center line L1, a socket 522 disposed on the heat sink 521, a circuit board 523 disposed on the heat sink 521, and a circuit board 523 disposed on the circuit The illuminating member 524 on the board 523, and the lamp cover 525 which is placed on the lamp holder 522 and covers the illuminating member 524. Specifically, the number of the circuit board 523 and the illuminating member 524 can be adjusted according to actual needs. Not limited to this. Referring to FIG. 6 and FIG. 7 , in the embodiment, the heat dissipating member 521 is formed in a manner that is formed by the injection of 201141730, and the heat dissipating member 52i is solid. It may be embedded on the socket 522 and made of copper or other material having high conductivity, and is not limited thereto. In addition, the heat sink 521, the lamp holder 522, the circuit board (3), the light-emitting member 524, and the lamp cover 525 are mounted on the mirror case 512 after the assembly is completed. Since the illuminating member 524 is thermally degraded during the manufacturing process, the thermal fading condition causes the illuminating member 524 to generate a brightness lower than the regulatory value after a period of use, for example, the US regulatory value needs to reach 137.5 candela (Candela, Therefore, in this embodiment, a high-power LED is used as the light-emitting member 524', and high heat generated by the high-power LED during operation can be quickly transmitted through the heat sink 521 and can pass through the mirror plate 516 and the mirror. The _ 5 (9) between the shells 512 is dissipated, and heat energy can be prevented from accumulating in the mirror casing 512, thereby avoiding the damage of the circuit board (2) due to overheating. With the above design, not only the brightness of the illuminating member can be generated. s s regulations A fg] also quickly eliminates the heat generated by the illuminating 4 cow 524, and prolongs the service life of the directional lamp unit 52. This is due to the heat dissipation # 521 is a solid combination of gold nuggets And disposed behind the outer fixing member 515 of the lens adjusting seat 513, so that the heat dissipating member 521 also has a counterweight function to provide a shockproof effect, and the lens 514 of the rear view mirror unit 51 is prevented from swaying on the locomotive. In the county where the vision is unclear, especially when the heat dissipating member 521 is located below the first center line u of the ahai, the anti-shock effect is optimal. Referring to FIG. 8 ' is a second preferred embodiment of the rear view mirror 5 having the directional lamp of the present invention. The difference is similar to that of the first preferred embodiment described above in 201141730. In this embodiment, the lens 514 is adhered to the mirror housing 512, and the mirror housing 512 is further formed with a plurality of the heat dissipation members. a heat dissipation hole 518 under the 521, and defining a second center line u' passing through a center point of the lens 514, and the heat dissipation member 521 is located below the second center line L2. With the above design, the light-emitting member can be similarly The brightness generated by the 524 is in accordance with the law. The heat generated by the illuminating member 524 is transmitted through the heat sink 52 and then discharged through the heat dissipation hole 518 to prevent heat from accumulating in the lens housing 5丨2. In summary, the rear view mirror 5 of the present invention has a directional light, and the high-power illuminating member 524 is matched with the heat-dissipating 521 (4), which not only makes the brightness comply with the regulations, but also effectively eliminates the illuminating member 524. Heat energy generated The invention can be achieved by the invention. The above is only the preferred embodiment of the present invention, and the scope of the invention is not limited thereto, that is, the scope of the patent application and the description of the invention are generally applicable. The simple equivalent changes and (4) are still within the scope of the patent of the present invention. [Simple Description of the Drawings] Figure 1 is a front view showing the first position of the locomotive front directional light; Figure 2 is - Side view, illustrating the second position of the locomotive front directional light; Fig. 3 is a front view showing the third setting position of the locomotive front directional light. Fig. 4 ,, J view, illustrating the rear view mirror of the present invention having a directional light 1; 201141730 First preferred embodiment; FIG. 5 is a cross-sectional view showing the position of each element in the first preferred embodiment; FIG. 6 is a cross-sectional view of another angle, which is an explanatory view of FIG. The overall view of the heat sink is illustrated; and Figure 8 is a cross-sectional view showing a second preferred embodiment of the rear view mirror of the present invention having a directional light. 201141730 [Main component symbol description] 4 Locomotive 517 Inner fixture 5 Rear view mirror 518 Cooling hole 500 Clearance 52 Directional lamp unit 51 Rear view mirror unit 521 Heat sink 511 Joint seat 522 Lamp holder 512 Mirror case 523 Circuit board 513 Lens adjustment seat 524 illuminating member 514 lens 525 lamp cover 515 outer fixing member L1 first center line 516 mirror plate L2 second center line