201031855 六、發明說明： 【發明所屬之技術領域】 本發明為一種發光二極體照明燈具，特別是關於一種 可360度旋轉的發光二極體照明燈具。 【先前技術】 自發明大王愛迪生發明了燈泡之後，人類從使用蠟燭 及煤油照明進步到「電燈」的世紀。人們經過這一百多年 的進步’如今的照明工具已不只有當初的鎢絲燈泡了在 我們日常生活中，早就大量依賴各式各樣不同設計、不同 原理的「燈具」；舉凡燈泡、日光燈、白熾燈管、南素燈 、發光二極體燈’都已成為我們日常生活的一部份。 在這些不同的照明工具之中，利用發光二極體（Ught Emitting Diode ; LED)作為發光元件的發光二極體燈可說 是時下最流行、最環保的照明工具。它有不同尺寸、不同 顏色可供設計選擇，能承受較高衝擊力，且同時且有亮度 衰減較緩慢，極低的功率損失’長達5萬至1〇萬小時的使用 壽命，極高的照明亮度等優點，這些均是其他燈具難以匹 敵的，也是發光二極體燈受歡迎的主要原因。 因為發光二極體燈具有諸多優點，各國大廠無不投入 大量研發人力，開發相關應用產品並申請專利保護。美國 專利US5921660即揭示一種發光二極體燈具之可旋轉的設 計’其特徵包含了兩個呈半圓形的支撐座，用以夾住發光 二極體模組’使發光二極體模組可在有限的角度内旋轉。 然而’於該專利中，多個發光二極體燈均勻分佈於發光二 201031855 極體模組之本體周圍，致使發光二極體燈具所發出的光線 會向四面八方散射，當使用者僅需要某一方向上的照明時 ’便會浪費部分的光線。再加上該專利的旋轉機制較複雜 ’零件種類繁多’徒增製造的成本。而且，該.發光二極體 燈具之設計無法隨意更換發光二極體模組，亦增加使用上 之不便。 另一美國專利US5726535,揭示了另一種可旋轉之發光 ❹ 二極體燈具，其特徵包含使用外旋接觸轉動方式，可16〇 度調整照射之方向，該專利採雙面均具有發光二極體燈之 印刷電路板，使其照射方向分別指向前方與後方，當使用 者僅需要某一方向上的照明時，便會浪費部分的光線。而 印刷電路板的雙面皆具有發光二極體燈的設置也會產生較 高的溫度，但該專利卻未設置任何散熱裝置，這可能造成 發光一極體燈壽命的縮短。另外，該專利之旋轉角度僅16〇 度，會產生旋轉上的死角。而且，該專利非為方便随時拆 ❿ 換之模組設計’故有其改進的空間。 练合上述缺點，若能設計一發光二極體燈具，改進上 述兩發明之不足，使其照明方向集中指向需要較大亮度的 一面’消除旋轉的死角，克服拆換不便的缺點，並設置散 熱裝置，則是本領域具有通f知識者努力的目標。 【發明内容】 I發明之目的在設計一可36〇度無限制圈數旋轉，集中 …月光線指向較需要亮度的區域，且可簡單拆換燈具本體 之發光一極體照明燈具。 201031855 本發明揭露一種發光二極體照明燈具，該發光二極體 照明燈具包括一燈具本體以及一燈頭部。燈具本體包括至 少一印刷電路板、一燈罩、一外殼與一旋轉基座，燈頭部 包括一電源基座與一接頭元件。其中，印刷電路板之其中 一面上具有多個發光二極體燈，且燈罩將發光二極體燈罩 住’而外殼與燈罩結合而將印刷電路板固定在内。旋轉基 座位於燈罩與外殼之侧邊而將燈罩及外殼結合固定，旋轉 基座更包括一第一連接部，該第一連接部為一向外凸出之201031855 VI. Description of the Invention: [Technical Field] The present invention relates to a light-emitting diode lighting fixture, and more particularly to a light-emitting diode lighting fixture capable of 360-degree rotation. [Prior Art] Since the invention of the light bulb by Edison, humans have progressed from the use of candles and kerosene lighting to the "lights" century. People have gone through more than one hundred years of progress. Today's lighting tools are not only the original tungsten light bulbs. In our daily life, we have long relied heavily on a variety of "lighting fixtures" with different designs and different principles. Fluorescent lamps, incandescent tubes, lamps, and LEDs have become part of our daily lives. Among these different lighting tools, LEDs using Utern Emitting Diodes (LEDs) as light-emitting elements are the most popular and environmentally-friendly lighting tools. It is available in different sizes and colors for design, can withstand high impact, and at the same time has a slower brightness decay, very low power loss 'up to 50,000 to 10 million hours of service life, very high The advantages of illumination brightness, etc., which are unmatched by other lamps, are also the main reasons for the popularity of LED lamps. Because the LED lamp has many advantages, all major manufacturers in the country have invested a lot of research and development manpower, developed related application products and applied for patent protection. U.S. Patent No. 5,921,660 discloses a rotatable design of a light-emitting diode lamp, which features two semi-circular support seats for clamping the light-emitting diode module to enable the light-emitting diode module to be Rotate within a limited angle. However, in this patent, a plurality of light-emitting diode lamps are evenly distributed around the body of the light-emitting diode 201031855, so that the light emitted by the light-emitting diode lamp is scattered in all directions, when the user only needs one side. When lighting up, it will waste part of the light. In addition, the rotating mechanism of the patent is more complicated. The variety of parts is increasing the cost of manufacturing. Moreover, the design of the light-emitting diode lamp cannot replace the light-emitting diode module at will, and the inconvenience in use is also increased. Another U.S. Patent No. 5,726, 535 discloses another rotatable illuminating ❹ diode lamp, which is characterized by the use of an externally-rotating contact rotation mode to adjust the direction of illumination by 16 degrees. The patent has a light-emitting diode on both sides. The printed circuit board of the lamp has its illumination direction pointing forward and backward respectively. When the user only needs illumination in a certain direction, part of the light is wasted. The arrangement of the LEDs on both sides of the printed circuit board also produces higher temperatures, but the patent does not have any heat sinks, which may result in a shortened life of the LED body. In addition, the patent's rotation angle is only 16 degrees, which produces a dead angle on the rotation. Moreover, this patent is not designed to facilitate the replacement of the module design at any time, so there is room for improvement. If the above-mentioned shortcomings can be designed, if a light-emitting diode lamp can be designed, the defects of the above two inventions can be improved, and the illumination direction is directed to the side that needs greater brightness to eliminate the dead angle of rotation, overcome the disadvantage of inconvenience of disassembly, and set heat dissipation. The device is the goal of the efforts of those skilled in the art. SUMMARY OF THE INVENTION The purpose of the invention is to design an unrestricted number of rotations of 36 degrees, to focus on areas where brightness is required, and to simply replace the illumination body of the lamp body. 201031855 The invention discloses a light-emitting diode lighting fixture, which comprises a lamp body and a lamp head. The lamp body comprises at least one printed circuit board, a lamp cover, a casing and a rotating base, and the lamp head comprises a power base and a joint component. Wherein, one side of the printed circuit board has a plurality of light-emitting diode lamps, and the lamp cover covers the light-emitting diode lamp and the outer casing and the lamp cover combine to fix the printed circuit board. The rotating base is located at a side of the lamp cover and the outer casing to fix the lamp cover and the outer casing. The rotating base further includes a first connecting portion, and the first connecting portion is outwardly convex.
圓柱體且包括一第一電極與一第二電極。電源基座包括有 一第二連接部，該第二連接部為一圓柱形凹洞且包括有一 第三電極與一第四電極。相對於第二連接部，接頭元件位 於電源基座的另一側並與電源基座相連接。 第「連接部插設於第二連接部之内並呈緊配合狀態， 且第—連接部可相對第二連接部作360度旋轉。其中，第— 電極、第二電極、第三電極、第四電極有兩種設置的實施 其中-實施例中，第―電極與第二電極均環繞於第 部之側壁上’第三電極與第四電極均環繞於第二連 ，側壁上。將第一連接部置於第二連接部之内，第— =與第三電極因呈環狀圍繞故可旋轉接觸，第二電極與 四：極因呈環狀圍繞故可旋轉接觸。在另_ 、 連接部之側壁上，第二電極一 第四電極位於第二連：：極環繞於第二連接部之側壁上’ 連接部之内底部。將第—連接部置於第二 電極與第三電極因呈環狀圍繞故可旋轉 201031855 接觸，第二電極與第四電極呈點接觸。 本發明之特徵在於燈具本體以及燈頭部為兩個獨立且 方便拆裝的模組，因此在組裝時，燈頭部可用接頭元件外 側的螺紋鎖在電燈的燈座上，燈具本體上的第一連接部置 於燈頭部的第二連接部之内而呈緊配合狀態。組裝完成後 ’發光一極體照明燈具可在使用的狀況（無需關閉電源） 下，藉由第一連接部、第二連接部上環狀圍繞的電極而旋 φ 轉接觸，達到360度無限制圈數的旋轉，藉以調整發光二極 體燈照射的方向，將照明的光線集中指向需要較大亮度的 區域。-還有，為了延長發光二極體燈使用壽命，本發明設 置有散熱模組來降低印刷電路板及發光二極趙燈的工作溫 度。 上述之發光二極體照明燈具中，可在印刷電路板及外 殼之間設置一具有多個散熱片的散熱組件，使散熱組件緊 貼固定於印刷電路板之背面’並在印刷電路板與散熱組件 參 之間塗覆一層散熱膏，藉以增加發光二極體燈使用的壽命 〇 上述之發光二極體照明燈具中，外殼上設有一開口， 用以加強散熱組件附近空氣的對流效應，藉以增加散熱效 率。 上述之發光二極體照明燈具中，燈罩可為透明或半透 明材質。 上述之發光二極體照明燈具中，印刷電路板的數量可 為多個’且這些印刷電路板依序相鄰，任兩相鄰之印刷電 201031855 路板間夾有一角度。 上述之發光二極體照明燈具中，接頭元件可為一外側 具有螺紋的愛迪生接頭。 驗本發明所揭露之特徵、元频成及所欲達成之功 效’獲得明確的表達，兹藉由下列具體實施例，並配合所 附之圖式’對本創作詳加說明如後。 【實施方式】 ❹ 請參閱圖1，圖1所繪示為本發明第一實施例之發光二 極體照明燈具分解圖，該發光二極體照明燈具L〇i包括有一 燈具本體1以及一燈頭部2。該燈具本體i包括一燈罩15、一 印刷電路板14、一外殼12以及一旋轉基座11。燈頭部2包括 一電源基座21以及一接頭元件22。如圖所示，印刷電路板 14之其中一面具有多個發光二極體燈141。燈罩15位於具有 發光二極體燈141之一面而將印刷電路板14罩住，燈罩15 可為透明或半透明之材質。外殼12與燈罩〗5結合而將印刷 ® 電路板14固定在内。為了增加發光二極體燈141使用的壽命 ，在印刷電路板14及外殼12之間設置一具有多個散熱片131 的散熱組件13,將散熱組件π緊貼固定於發光二極體燈ι41 的另一面’並在印刷電路板14與散熱組件〗3之間塗覆一層 散熱膏（未繪示）。同時，在外殼12上設一開口 121，用以 加強散熱片131附近空氣的對流效應，藉以增加散熱效率， 降低印刷電路板14及發光二極體燈141的工作溫度》旋轉基 座11位於燈罩15與外殼12的側邊，藉以結合固定燈罩15及 外殼12。旋轉基座π更包括有一第一連接部111，該第一連 201031855 接部111為一向外凸出之圓柱體。電源基座21具有一第二連 接部211，該第二連接部211為一圓柱形凹洞。接頭元件22 固接於電源基座21上相異於第二逹接部211的一端，且接頭 元件22的外側具有螺紋221，此螺紋221係用以鎖合在電燈 的燈座上’接頭元件22可為一愛迪生接頭。 請參閱圖2，圖2所繪示為本發明第一實施例之發光二 極體照明燈具結合示意圖。如圖2所示，請同時對照圖i， ❹第一連接部ill更包括一第一電極111Αα及一第二電極 Π1Β，該第一電極111Α環繞於第一連接部lu之側壁上， 第二電極111B則位於第一連接部lu之端點上。第二連接部 211更包括有一第三電極2UA以及一第四電極以⑺，該第 三電極211A環繞於第二連接部211之側壁上，第四電極 211B位於第二連接部211之底部。在此，第一電極uiA與 第三電極211八極性相同，第二電極111]8與第四電極2116極 性相同，而第一電極111A與第二電極丨丨⑺極性相反。如圖 Φ 所示，發光二極體照明燈具L01乃由一燈具本體]^^及一燈 頭部2這兩個獨立且方便拆裝的模組所組合而成。組裝時， 燈頭部2可用接頭元件22外侧的螺紋221鎖在電燈的燈座上 ，而燈具本體1上的第一連接部ιη置於燈頭部2的第二連接 P 11之内而呈緊配合狀態。在本實施例中，由於第一電極 八第—電極211A成環狀，故即使第一連接部ill相·對 於第二連接部211進行旋轉，第一電極U1A與第三電極 A彼此仍3b保持在相接觸的狀態。而且，由圖2可知，由 於第二電極111B與第四電極211B分別位於第一連接部i n 201031855 與第二連接部211的端點，故即使第一連接部U1相對於第 二連接部211進行旋轉，第二電極U1B與第四電極^⑺彼 此仍能保持在相接觸的狀態。因此，第一連接部U1相對於 弟一連接部211進行旋轉時，也不會中斷電流的流通。也因 此，本發明的發光二極體照明燈具可達到在使用時燈具本 體1能相對於燈頭部2作3 60度無限制圈數的旋轉，藉以調整 發光二極體燈141照射的方向’將所發出的光線集中於需要 較大亮度的區域。 請參閱圖3,圖3所繪示為本發明第二實施例之發光二 極體照明燈具結合示意圖，該發光二極體照明燈具L〇2具有 一燈具本體3以及一燈頭部4,該燈具本體3包括一旋轉基座 31、一外殼32以及一燈罩35。燈頭部4包括一電源基座41 以及一接頭元件42。如圖所示，請同時參照圖i與圖2，旋 轉基座31包括有一第一連接部311，該第一連接部3ιι更包 括一第一電極311A以及一第二電極mB，該第一電極3nA ❹ 與第二電極311B均環繞於第一連接部311之側壁上。電源基 座41包括有一第二連接部411，該第二連接部4ιι更包括有 一第三電極411八以及一第四電極41汨，該第三電極411八與 第四電極411B均環繞於第二連接部411之側壁上。在此，第 一電極311A與第三電極411A極性相同，第二電極311B與第 四電極411B極性相同，而第一電極311A與第二電極^汨極 性相反。在使用時，由於第一電極3UA與第三電極4nA成 環狀，故即使第一連接部311相對於第二連接部411進行旋 轉’第一電極3ΠΑ與第三電極4Ua彼此仍能保持在相接觸 201031855 的狀態。同理，在第一連接部31丨相對於第二連接部4ΐι進 行旋轉時，第二電極311B舆第四電極4113彼此仍能保持在 相接觸的狀態。因此，第一連接部1U相對於第二連接部211 進行旋轉時，也不會中斷電流的流通。也因此，發光二極 體照明燈具L02可在使用的狀況下’達到燈具本體3相對於 燈頭部4作3 60度無限制圈數的旋轉之目的。 請參閱圖4,圖4所繪示為本發明第三實施例之發光二 ❿ 極體照明燈具分解圖。如圖所示，請同時參照圖丨，發光二 極體照明燈具L03包括有兩個印刷電路板14，，而其他元件 則與圖1相同，在此不再贅述。本實施例的兩個印刷電路板 14’相鄰，且兩印刷電路板14，之間夾有一角度，這使得兩個 印刷電路板14’上的發光二極體燈14〗之照射方向彼此不相 同，從而使發光二極體照明燈具L03能照射到較廣泛的面積 。另外，增加印刷電路板14,的數量，則發光二極體燈141 之數量也會增加’照明亮度亦隨之增加。 ® 請參閱圖5，圖5所繪示為本發明第四實施例之發光二 極體照明燈具分解圖。該發光二極體照明燈具L〇4包括有三 個印刷電路板14’’，而其他元件則與圖丨相同，在此不再贅 述。本實施例的三個印刷電路板14’’依序相鄰，且任兩相鄰 之印刷電路板14，’之間夾有一角度。比較圖丨、圖4與圖5可 知’發光二極體照明燈具L〇4的照射範圍較發光二極體照明 燈具L03來得大，而發光二極體照明燈具L〇3的照射範圍較 發光一極體照明燈具L〇i來得大。由此可知，本領域具有通 常知識者可藉由增加印刷電路板的數量來增加發光二極體 201031855 照明燈具的照射範圍。 以上已將本發明專利做—詳細說明，惟以上所述者， 僅為本發明之較佳實施例而已，並非用以限定本發明所主 張之專利權利範圍。其專利保護範圍當視後附之申請專利 靶圍及其等同領域而定。凡本領域具有通常知識者，在不 脫離本專利精神或範圍内，所作之更動潤飾或均等變化與 修飾，均屬於本發明專利揭示精神下所完成之等效改變或 设什’應屬本發明專利之專利涵蓋範圍。 ® 【圖式簡要說明】 圖1所繪示為本發明第一實施例之發光二極體照明燈 具分解圖； 圖2所繪示為本發明第一實施例之發光二極體照明燈 具結合不意圖； 圖3所繪不為本發明第二實施例之發光二極體照明燈 具結合示意圖； 參 圖4所繪示為本發明第三實施例之發光二極體照明燈 具分解圖；以及 圖5所繪示為本發明第四實施例之發光二極體照明燈 具分解圖。 【主要元件符號說明】 L 01發光二極體照明燈具 L02發光二極體照明燈具 L03 發光二極體照明燈具 L04發光二極體照明燈具 -11· 201031855 燈具本體 燈具本體 燈具本體 旋轉基座 第一連接部 第一電極 第二電極 外殼 開口 參 散熱組件 散熱片 印刷電路板 印刷電路板 印刷電路板 發光二極體燈 燈罩 燈頭部 電源基座 第二連接部 第三電極 第四電極 接頭元件 螺紋 燈具本體 旋轉基座 201031855 311第一連接部 32 外殼 35 燈罩 4 燈頭部 41 電源基座 411第二連接部 42 接頭元件 421 螺紋The cylinder includes a first electrode and a second electrode. The power supply base includes a second connecting portion, which is a cylindrical recess and includes a third electrode and a fourth electrode. The connector member is located on the other side of the power supply base and is connected to the power supply base with respect to the second connection portion. The first connecting portion is inserted into the second connecting portion and is in a tightly fitting state, and the first connecting portion is rotatable 360 degrees with respect to the second connecting portion. wherein the first electrode, the second electrode, the third electrode, and the first The four electrodes are implemented in two configurations. In the embodiment, the first electrode and the second electrode are both wrapped around the sidewall of the first portion. The third electrode and the fourth electrode are both wrapped around the second side wall. The connecting portion is disposed in the second connecting portion, and the first electrode and the third electrode are in a ring shape so as to be in a rotationally contactable manner, and the second electrode and the fourth electrode are in a ring shape so as to be in a rotationally contactable manner. On the side wall of the portion, the second electrode and the fourth electrode are located in the second connection: the pole surrounds the inner bottom of the connecting portion on the side wall of the second connecting portion. The first connecting portion is placed on the second electrode and the third electrode The second electrode is in point contact with the fourth electrode, and the second electrode is in point contact with the fourth electrode. The invention is characterized in that the lamp body and the lamp head are two independent and convenient disassembly modules, so when assembled, the lamp head Available thread outside the connector element In the lamp holder of the lamp, the first connecting portion on the lamp body is placed in the second connecting portion of the lamp head to be in a tight fit state. After the assembly is completed, the 'light emitting body lighting fixture can be used (without closing) Under the power supply, the first connection portion and the second connection portion are connected to the annularly-shaped electrode to rotate the φ turn contact to achieve 360 degrees of unrestricted number of rotations, thereby adjusting the direction of illumination of the LED lamp, and illuminating The light is concentrated on the area that requires greater brightness. - Also, in order to extend the life of the LED, the present invention is provided with a heat dissipation module to reduce the operating temperature of the printed circuit board and the LED lamp. In a diode lighting fixture, a heat dissipating component having a plurality of fins is disposed between the printed circuit board and the outer casing, so that the heat dissipating component is closely attached to the back surface of the printed circuit board and is in the printed circuit board and the heat dissipating component. A layer of thermal grease is applied to increase the life of the LED lamp. In the above-mentioned LED lighting fixture, an opening is provided in the casing for enhancing heat dissipation. The convection effect of the air in the vicinity of the device can increase the heat dissipation efficiency. In the above-mentioned light-emitting diode lighting fixture, the lampshade can be transparent or translucent. In the above-mentioned light-emitting diode lighting fixture, the number of printed circuit boards can be multiple 'And these printed circuit boards are adjacent to each other, and any two adjacent printed circuits 201031855 have an angle between the boards. In the above-mentioned light-emitting diode lighting fixture, the joint component can be an Edison joint with a thread on the outer side. The features disclosed in the invention, the frequency of the invention, and the effect to be achieved are clearly defined. The following specific embodiments are accompanied by the accompanying drawings, which are described in detail below. [Embodiment] ❹ Please refer to FIG. 1 . FIG. 1 is an exploded view of a light-emitting diode lighting fixture according to a first embodiment of the present invention. The light-emitting diode lighting fixture L〇i includes a lamp body 1 and a lamp head 2 . The lamp body i includes a lamp cover 15, a printed circuit board 14, a casing 12, and a rotating base 11. The lamp head 2 includes a power base 21 and a joint member 22. As shown, one side of the printed circuit board 14 has a plurality of light emitting diode lamps 141. The lamp cover 15 is placed on one side of the light-emitting diode lamp 141 to cover the printed circuit board 14, and the lamp cover 15 may be transparent or translucent. The housing 12 is combined with the lamp cover 5 to secure the printing ® circuit board 14. In order to increase the life of the LED lamp 141, a heat dissipating component 13 having a plurality of fins 131 is disposed between the printed circuit board 14 and the casing 12, and the heat dissipating component π is closely attached to the LED lamp ι41. The other side 'and a layer of thermal grease (not shown) is applied between the printed circuit board 14 and the heat dissipating component 3. At the same time, an opening 121 is formed in the outer casing 12 for enhancing the convection effect of the air near the heat sink 131, thereby increasing the heat dissipation efficiency and reducing the operating temperature of the printed circuit board 14 and the light-emitting diode lamp 141. 15 and the side of the outer casing 12, thereby fixing the lampshade 15 and the outer casing 12. The rotating base π further includes a first connecting portion 111, and the first connecting portion 201031855 is an outwardly projecting cylindrical body. The power supply base 21 has a second connecting portion 211 which is a cylindrical recess. The connector component 22 is fixed to the power supply base 21 at one end different from the second splicing portion 211, and the outer side of the connector component 22 has a thread 221 for locking on the socket of the lamp. 22 can be an Edison connector. Referring to FIG. 2, FIG. 2 is a schematic diagram of a combination of a light-emitting diode lighting fixture according to a first embodiment of the present invention. As shown in FIG. 2, at the same time, referring to FIG. 1, the first connecting portion ill further includes a first electrode 111Αα and a second electrode Π1Β, and the first electrode 111Α surrounds the sidewall of the first connecting portion lu, the second The electrode 111B is located at the end of the first connecting portion lu. The second connecting portion 211 further includes a third electrode 2UA and a fourth electrode (7). The third electrode 211A surrounds the sidewall of the second connecting portion 211, and the fourth electrode 211B is located at the bottom of the second connecting portion 211. Here, the first electrode uiA and the third electrode 211 have the same polarity, the second electrode 111]8 and the fourth electrode 2116 are of the same polarity, and the first electrode 111A and the second electrode 丨丨 (7) have opposite polarities. As shown in Figure Φ, the LED illumination lamp L01 is composed of two independent and easily disassembled modules: a lamp body ^^^ and a lamp head 2. When assembled, the lamp head 2 can be locked to the lamp holder of the lamp with the thread 221 on the outside of the connector element 22, and the first connection portion η on the lamp body 1 is placed within the second connection P11 of the lamp head 2 to be tightly fitted. status. In the present embodiment, since the first electrode eight-electrode 211A is annular, even if the first connecting portion ill phase rotates with respect to the second connecting portion 211, the first electrode U1A and the third electrode A remain 3b with each other. In the state of contact. 2, since the second electrode 111B and the fourth electrode 211B are respectively located at the end points of the first connection portion in 201031855 and the second connection portion 211, even if the first connection portion U1 is performed with respect to the second connection portion 211 Rotation, the second electrode U1B and the fourth electrode ^7 are still in a state of being in contact with each other. Therefore, when the first connecting portion U1 is rotated with respect to the other connecting portion 211, the flow of current is not interrupted. Therefore, the LED lighting fixture of the present invention can achieve a rotation of the lamp body 1 with an unrestricted number of turns of 3 60 degrees with respect to the lamp head 2 during use, thereby adjusting the direction in which the LED lamp 141 is illuminated. The emitted light is concentrated in an area where greater brightness is required. Referring to FIG. 3, FIG. 3 is a schematic diagram of a combination of a light-emitting diode lighting fixture according to a second embodiment of the present invention. The LED light fixture L〇2 has a lamp body 3 and a lamp head 4, and the lamp The body 3 includes a rotating base 31, a casing 32, and a lamp cover 35. The lamp head 4 includes a power base 41 and a joint member 42. As shown in the figure, referring to FIG. 2 and FIG. 2, the rotating base 31 includes a first connecting portion 311. The first connecting portion 3 further includes a first electrode 311A and a second electrode mB. The 3nA ❹ and the second electrode 311B both surround the sidewall of the first connecting portion 311. The power supply base 41 includes a second connecting portion 411. The second connecting portion 4 401 further includes a third electrode 411 and a fourth electrode 41. The third electrode 411 and the fourth electrode 411B both surround the second. On the side wall of the connecting portion 411. Here, the first electrode 311A and the third electrode 411A have the same polarity, the second electrode 311B and the fourth electrode 411B have the same polarity, and the first electrode 311A and the second electrode are opposite in polarity. In use, since the first electrode 3UA and the third electrode 4nA are annular, even if the first connecting portion 311 is rotated relative to the second connecting portion 411, the first electrode 3 ΠΑ and the third electrode 4Ua can remain in phase with each other. Contact the status of 201031855. Similarly, when the first connecting portion 31 is rotated relative to the second connecting portion 4, the second electrode 311B and the fourth electrode 4113 can remain in contact with each other. Therefore, when the first connecting portion 1U rotates relative to the second connecting portion 211, the flow of current is not interrupted. Therefore, the light-emitting diode lighting device L02 can achieve the purpose of rotating the lamp body 3 with respect to the lamp head 4 by an unrestricted number of turns of 3 60 degrees under the condition of use. Please refer to FIG. 4. FIG. 4 is an exploded view of a light-emitting diode body lighting fixture according to a third embodiment of the present invention. As shown in the figure, please refer to the figure 丨, the LED illuminator L03 includes two printed circuit boards 14, and the other components are the same as those in FIG. 1, and will not be described herein. The two printed circuit boards 14' of the present embodiment are adjacent to each other, and the two printed circuit boards 14 are sandwiched with an angle therebetween, so that the illumination directions of the LEDs 14 on the two printed circuit boards 14' are not adjacent to each other. The same, so that the light-emitting diode lighting fixture L03 can be irradiated to a wider area. In addition, by increasing the number of printed circuit boards 14, the number of light-emitting diode lamps 141 is also increased, and the illumination brightness is also increased. ® Referring to FIG. 5, FIG. 5 is an exploded view of a light-emitting diode lighting fixture according to a fourth embodiment of the present invention. The light-emitting diode lighting fixture L〇4 includes three printed circuit boards 14'', and other components are the same as those of the drawings, and will not be described again. The three printed circuit boards 14'' of this embodiment are sequentially adjacent, and an angle is sandwiched between any two adjacent printed circuit boards 14,'. Comparing Fig. 4 and Fig. 5, it can be seen that the illumination range of the light-emitting diode lighting fixture L〇4 is larger than that of the light-emitting diode lighting fixture L03, and the illumination range of the light-emitting diode lighting fixture L〇3 is more luminous. The polar lighting fixture L〇i comes big. It can be seen that those skilled in the art can increase the illumination range of the light-emitting diode 201031855 by increasing the number of printed circuit boards. The invention has been described in detail above, but is not intended to limit the scope of the invention as claimed. The scope of patent protection depends on the patent pending target area and its equivalent fields. Equivalent changes or modifications made by those skilled in the art without departing from the spirit or scope of the present invention are all equivalent modifications or modifications of the present invention. The patent covers the scope of the patent. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an exploded view of a light-emitting diode lighting fixture according to a first embodiment of the present invention; FIG. 2 is a view showing a combination of a light-emitting diode lighting fixture according to a first embodiment of the present invention; FIG. 3 is a schematic view showing a combination of a light-emitting diode lighting fixture according to a second embodiment of the present invention; FIG. 4 is an exploded view of a light-emitting diode lighting fixture according to a third embodiment of the present invention; An exploded view of a light-emitting diode lighting fixture according to a fourth embodiment of the present invention is shown. [Main component symbol description] L 01 light-emitting diode lighting L02 light-emitting diode lighting L03 light-emitting diode lighting L04 light-emitting diode lighting -11· 201031855 lamp body lamp body lamp body rotating base first Connection part first electrode second electrode case opening heat dissipation component heat sink printed circuit board printed circuit board printed circuit board light emitting diode lamp lamp head lamp power supply base second connection part third electrode fourth electrode joint element thread lamp body Rotating base 201031855 311 first connecting portion 32 housing 35 lamp cover 4 lamp head 41 power base 411 second connecting portion 42 joint member 421 thread