M428649 五、新型說明： 【新型所屬之技術領域】 本創作涉及一種風扇組件。在其較佳實施方式中， 本創作涉及一種低功率、市電操作(mainS_〇perated)的風 扇組件。 【先前技術】 W0 2009/030879描述了 一種風扇組件，其包括圓 柱形基座及環形噴嘴，該圓柱形基座容納市電驅動 (m^ins-driven)馬達’該市電驅動馬達用於旋轉葉輪以將 主氣流，吸到基座，該環形喷嘴連接到基座並包括環形 嘴，主氣流通過該環形嘴從風扇發出。噴嘴定義開口， 在風扇、、且件的局部環境(l〇cal envir〇nment)中的空氣被 嘴發出的主氣流抽吸穿職開口，放大了錢流。喷嘴 恩達(C〇anda)表面，嘴配置為引導主氣流到該柯 # 上方。柯恩達表面對於開口的中心軸對稱地延 風扇組件產生的氣流為具有圓柱形或截頭圓錐 體形輪廓的環形噴射流體的形式。 【新型内容】 ，第—方面’本創作涉及一種風扇組件主 過咖5工虱入口、葉輪及用於驅動葉輪以抽吸氣流穿 氣流=1^4用，出D部’包括用於從主體接收 光5 ψ 道用於從風扇組件發出氣流的至少一個 個^ 5 Φ i開口’來自風扇組件外部的空氣被至少一 二虱口發出的氣流抽吸穿過該開口；輸入端子，用 4 M428649 於從外部電源接收直流(DC)_，在4至12V範 圍内’及f源縣電路，連接顺人端刊於向馬達提 供驅動電壓。 輸入端子可配置為用於連接到多個不同的外部電 ，之一。在錄的實施方式H端何連接到配接 益，.該配接器用於將交流（AC)電塵，諸如市電電源 (mams p〇Wer supply)提供的 11〇 或 22〇 ac 電壓，轉換M428649 V. New description: [New technical field] This creation relates to a fan assembly. In its preferred embodiment, the present creation relates to a low power, mains operation (mainS_〇perated) fan assembly. [Prior Art] WO 2009/030879 describes a fan assembly including a cylindrical base and an annular nozzle that houses a m^ins-driven motor that is used to rotate the impeller The primary air stream is drawn to the base, the annular nozzle is coupled to the base and includes an annular nozzle through which the primary airflow is emitted from the fan. The nozzle defines an opening, and the air in the fan, and the local environment of the piece is sucked by the main airflow from the mouth to amplify the money flow. Nozzle The surface of the C〇anda, the mouth is configured to direct the main airflow above the ke #. The Coanda surface extends symmetrically about the central axis of the opening. The airflow generated by the fan assembly is in the form of an annular jet of fluid having a cylindrical or frustoconical profile. [New content], the first aspect of the present invention relates to a fan assembly, a main assembly, an impeller, and an impeller for driving the impeller to suck the airflow through the airflow=1^4, and the D portion is included for the slave body. Receiving light 5 channels for at least one of the airflows from the fan assembly ^ 5 Φ i opening 'The air from the outside of the fan assembly is drawn through the opening by the airflow from at least one of the two ports; the input terminal is 4 M428649 Receiving direct current (DC)_ from an external power supply, in the range of 4 to 12V' and the f source circuit, the connection is provided to provide the driving voltage to the motor. The input terminal can be configured to be connected to one of a plurality of different external powers. In the recorded embodiment, the H terminal is connected to the matching benefit. The adapter is used to convert alternating current (AC) electric dust, such as the 11 〇 or 22 〇 ac voltage supplied by the mains power supply (mams p〇Wer supply).
為DC電壓，例如4.8VDC電壓。或者，輸入端子可以 通過適當的電纜連制車輛的12v電源，例如點 火器（l】ghter socket)。又或者，輸入端子可以為通用串 列匯流排(Universal Seriai Bus，卿)槔的形心用於通 ，USB電境從電腦接收在4 4至5 25v範圍内的電慶。 ，後-種情況下’風扇組件可以包括用於存儲從聰 埠接收的資料的記憶體。-Is a DC voltage, such as 4.8 VDC. Alternatively, the input terminal can be used to connect the vehicle's 12v power supply via a suitable cable, such as a firearm (1) ghter socket. Alternatively, the input terminal can be a universal serial bus (Universal Seriai Bus, 槔), the centroid is used for communication, and the USB environment receives the electric celebration in the range of 4 4 to 5 25v from the computer. In the latter case, the fan assembly may include a memory for storing material received from Congru. -
風扇組件較佳為低功率風扇組件，其令在使用中， 馬達提取小於卿的功率，較佳小於5W的功率。 ，佳的’為了最小化製造成本，風扇组件具有相 低數量的部件。例如，部分的空氣出口部可以八的 主體成-體。在較佳的實施方式中，空氣出口部包ς定 義空氣通道的外部及内部、空氣出口、及開口， 括容納馬達及葉輪的㈣。在此情況下，空氣4 口= 外部可以與主體_壁成—體。輸人端子健位於= 體側壁中形成的孔洞内。 、在主 主體可以包括用於支撐風扇組件的基座。側壁較佳 5 M428649 為管形，更較佳為在其上端具有開口的圓柱形壁，氣流 通過該開口進入風扇組件的空氣出口部。基座較佳與側 壁成一體，所以可以從側壁的下敞開端向外延伸以提高 風扇組件的穩定性。基座可以具有大體圓形的外周，該 外周具有的直從為主體的側壁的直徑的至少1 .5倍，較 佳至少兩倍。或者，基座可以具有任何其他期望的形 狀，諸如橢圓形或多邊形形狀。基座可以位於可旋轉的 基座板上，用於允許使用者旋轉風扇組件以再次引導由 風扇組件產生的氣流。基座板可以由擺動機構 (oscillation mechanism)擺動（oscillate)，從而以例如 9〇〇 左右的角度掃過氣流。 風扇組件較佳包括用於支撐馬達及葉輪的支撐 體。側壁較佳包括孔，支撐體插入孔。例如，支撐體可 以包括框，該框通過側壁的下敞開端可插入到主體的側 壁的孔中。框的下端較佳為封閉的以提供風扇組件的實 質上連續的下表面。框較佳為實質上與主體的側壁同軸 的管形框。框較佳包括多個孔洞，氣流通過該孔洞在空 氣入口與葉輪之間穿過。 電源供應電路較佳安裝在支撐體上，所以與支撲體 同時插入主體。在裝配過程中，在支撐體插入到主體中 之前’馬達及葉輪可以通過側壁的下敞開端插入到主體 中。然後，一致動器可以例如通過形成在主體的側壁中 的孔洞連接到電源供應電路，使得使用者能夠選擇性地 開啟及關閉馬達。環形擴散器可以位於葉輪及空氣出口 6 M428649 部之間以在從葉輪發出的氣流進入空氣出口部之前控 制其流體特性。擴散器可以與馬達的外殼成一體，或者 可以是單獨的部件。 外部及内部的每一者較佳為環形形狀，使得開 口具 有大體圓形截面。風扇組件較佳具有相對小的尺寸；開 口的直徑較佳小於150mm，風扇組件的高度較佳小於 250mm。因此，風扇組件可以為攜帶型風扇組件，適合 位於桌子、長凳或其他傢俱上，或者在汽車、有篷卡車 (caravan)或具有適當的外部電源用於驅動風扇組件的 馬達的其他車輛中。 空氣入口可以包括形成在主體的侧壁中的一個或 多個孔洞，氣流通過該孔洞進入主體。空氣出口部可以 包括在開口周圍延伸(較佳圍繞開口）的單個空氣出口。 或者，空氣出口部可以包括繞開口間隔開的多個空氣出 口。例如，空氣出口部可以包括位於開口的相對侧上的 一對空氣出口，每個空氣出口發出氣流的各自部分。 該空氣出口或每個空氣出口較佳為狹槽形式，較佳 具有在0.5至5mm範圍内的寬度。在較佳的實施方式 中，該狹槽或每個狹槽具有3mm左右的寬度。間隔物 可以形成在空氣出口部的外部上用於接合空氣出口部 的内部，以保持空氣出口部的内部與外部之間的相對均 勻的間隔。或者，間隔物可以形成在空氣出口部的内部 上。 工IL出口較佳定位在空氣出口部的後部，並較佳配 7 M428649 置為引導氣流穿過由空氣出口部的内部的外表面定義 的孔。該空氣出口或每個空氣出口較佳由空氣出口部的 内部的外表面與外部的内表面的交疊部定義。 空氣出口部較佳包括鄰近空氣出口的表面，空氣出 口配置在該表面上以引導由其發出的氣流。較佳的，該 表面是彎曲表面’更較佳為柯恩達(Coanda)表面。較佳 的’空氣出口部的内部的外表面成形為定義柯恩達表 面。柯恩達表面是公知的表面類型，在該表面上從靠近 該表面的輸出口發出的流體顯示出柯恩達效應。流體趨 向於在靠近該表面，幾乎“黏住(clinging)”該表面或 “抱住(hugging)”該表面的表面上方流動。柯恩達效應 已經是被證實且有很多文獻記載的捲吸(entrainment)方 法，其中主氣流被引導到柯恩達表面上方。柯恩達表面 的特徵的描述及柯恩達表面上方的流體的效應可以在 文獻中找到’例如 Reba，Scientific American, Volume 214, 1966年6月，第84至92頁。通過使用柯恩達表面， 由空氣出口發出的空氣從風扇組件的外部抽吸增加的 空氣量穿過開口。 在較佳的實施方式中’產生氣流，該氣流從風扇組 件的空氣出口部發出。在下面的描述中，該氣流將被稱 為主氣流。主氣流在柯恩達表面上方經過。主氣流捲吸 圍繞空氣出口部的空氣’其充當空氣放大器以向使用者 提供主氣流及被捲吸的空氣。被捲吸的空氣在這裏將被 稱為次氣流。次氣流從室内空間、區域或者圍繞喷嘴的 8 M428649 嘴的外部環境抽吸，以及通過轉移而從風扇組件周圍的 其他區域抽吸，並主流地穿過由空氣出口部定義的門 口。引f到柯恩達表面上方的與被捲吸的次氣流結合的 主氣流等於從風扇組件的空氣出口部向前發出或發射 的總氣流。 較佳的’空氣出口部包括位於柯恩達表面下游的擴 散器表面。擴散器表面引導朝使用者的位置發出的氣流 同時保持平穩、均勻的輸出。 在本創作的第二方面，提供一種風扇組件，包括： 主體，包括空氣入口、葉輪及用於驅動葉輪以抽吸氣流 穿過空氣入口的馬達；空氣出口部’包括用於從主體接 收氣流的空氣通道、用於從風扇組件發出氣流的至少_ 個空氣出口、及柯恩達表面，該至少一個空氣出口配置 為引導由其發出的氣流到柯恩達表面上方；輸入端子， 用於從外部電源接收較佳在4至12V範圍内的直流電 壓；及電源供應電路’連接到輸入端子用於向馬達提供 驅動電壓。 柯恩達表面較佳對於與開口的平面正交的軸而延 伸。在柯恩達表面與該軸之間所夾的角較佳在5至3〇。 範圍内，更較佳在15至25。範圍内。 主體及空氣出口部較佳由塑膠材料形成。例如，主 體及空氣出口部的内部及外部可以由聚碳酸脂(pc)材 料形成’諸如pc/丙烯腈丁二烯-苯乙烯（ABS， acrylonitrile butadiene styrene)混合物。葉輪及直接位於 9 葉^下游的擴散器也較佳由塑膠材料形成，且PC/ABS 見=物也可以用於形成這些部件。支樓體也可以由塑膠 材料开v成，但疋由於此部件主要位於主體内，它可以由 較脆弱的塑膠材料形成，諸如聚丙烯/滑石（⑽)混合物。 在第二方面，本創作提供一種風扇組件，包括：主 體括空氣入口、葉輪及用於驅動葉輪以抽吸氣流穿 過·^氣入口的馬達；空氣出口部，包括第一環形部、第 、裒升v 、空氣出口及開口，第一環形部與主體的一部 分成一體，第二環形部連接到第一環形部，第一環形部 ，第二環形部定義用於從主體接收氣流的空氣通道，空 ^出口用於從風扇組件發出氣流，來自風扇組件外部的 二氣被由空氣出口發出的氣流抽吸穿過該開口。較佳 的，二氣出口部包括定義空氣通道的外部及内部、空氣 出口及開口，主體包括容納馬達及葉輪的側壁，該側壁 較佳與風扇組件的空氣出口部的外部成一體。側壁較佳 包括主體的空氣入口。 根據本創作的第一方面的上述特徵相同地應用于 本創作的第二及第三方面，反之亦然。 【實施方式】 現在將參考附圖僅通過示例的方式描述本創作的 較佳特徵。 圖1及圖2示出風扇組件10。風扇組件1〇包括具 有空氣入口部12及空氣出口部14的主體。空氣入口 12包括大致圓柱形的侧壁16’在側壁μ中形成有呈多 M428649 個孔洞形式的空氣入口 18,主氣流穿過該空氣入口 18 從外部環境抽吸到空氣入口部12中。空氣出口部14包 括用於從風扇組件10發出主氣流的空氣出口 2〇。 空氣出口部14包括連接到環形内部24並在環形内 部24周圍延伸的環形外部22。空氣出口部14的環形 部22、24在開口 26周圍延伸並定義開口 26。這些部 刀的母一者可以由多個連接的部分形成，但是在本實施 方式中’外部22及内部24的每一者由各自的單個模製 部分形成。在本示例中’外部22與空氣入口部12的側 土 16成體，但是外部22可以例如通過卡扣（snap-fit) 連接、卡口安裝(bayonet fitting)、螺釘安裝、黏合、超 音波熔接或任何其他合適的連接來連接到侧壁16。在 裝配期間’内部24通過外部22的敞開的前端28插入 到外部22。如圖3所示，前端28被接收在位於内部24 的正面處的面向後的環形狹槽30中。外部22及内部 24可以使用引入到狹槽30的黏合劑連接在一起。 外部22及内部24 —起定義用於傳送主氣流到空氣 出口 20的環形内部通道32(在圖3中示出）。内部通道 32由外部22的内表面及内部24的内表面界定。空氣 入口部12的側壁16具有敞開的上端34，該敞開的上 端34定義一孔洞，主氣流通過該孔洞從空氣入口部12 進入内部通道32。 空氣出口 20定位在空氣出口部14的後部，並配置 為通過開口 26朝風扇組件1〇的正面發出主氣流。空氣 11 M428649 出口 20至少部分地在開口 26周圍延伸，並較佳圍繞開 口 26。空氣出口 20藉由使外部22的内表面的部分分 別與内部24的外表面的部分交疊或面對而定義，並為 環形狹槽的形式，較佳具有在0.5至5mm範圍内的相 對恒定的寬度。在此示例中，空氣出口具有3mm左右 的寬度。間隔物35可以繞空氣出口 20間隔開，用於推 開外部22與内部24的交疊部以將空氣出口 20的寬度 保持在期望的水平。這些間隔物35可以與外部22或内 部24成一體，在此示例中是與外部22成一體。 空氣出口 20成形為引導主氣流到内部24的外表面 上方。内部24的外表面包括柯恩達表面36及擴散器表 面38，柯恩達表面36鄰近空氣出口 20定位，空氣出 口 20引導從風扇組件10發出的空氣到該柯恩達表面 36上方，擴散器表面38位於柯恩達表面36的下游。 擴散器表面38配置可隨著遠離開口 26的中心轴X而成 錐形，從而輔助從風扇組件10發出的空氣的流動。在 擴散器表面38與開口 26的中心軸X之間所夾的角在5 到30°的範圍内，在此示例中約為24°左右。 如上所述，空氣入口部12包括與空氣出口部14的 外部22 —體的側壁16。側壁16大致為圓柱形，並具 有敞開的上端34、敞開的下端40及孔42。側壁16包 括空氣入口 18，初始氣流穿過該空氣入口 18進入風扇 組件10。在此實施方式中，空氣入口 18包括形成在側 壁16中的孔洞的陣列。或者，空氣入口 18可以包括安 12 M428649 裝在形成於側壁16中的窗内的一個或多個網格或歸 子。 風扇組件10包括基座44 ’該基座44用於接合設 置風扇組件10的表面。基座44連接到空氣入口部12 的側壁16且較佳與空氣入口部12的側壁16成一體。 基座44從側壁16的下端40向外延伸。在此示例中， 基座44為具有圓形外邊緣的環形板形式，該圓形外邊 緣的直徑為侧壁16的直徑的兩倍左右。The fan assembly is preferably a low power fan assembly that allows the motor to extract less than a power of less than 5 watts in use. , in order to minimize manufacturing costs, the fan assembly has a relatively low number of components. For example, a portion of the air outlet portion may be body-shaped. In a preferred embodiment, the air outlet portion defines the exterior and interior of the air passage, the air outlet, and the opening, including (4) housing the motor and the impeller. In this case, the air 4 port = the outside can be made into a body with the body wall. The input terminal is located in the hole formed in the sidewall of the body. The base may include a base for supporting the fan assembly. Preferably, the side wall 5 M428649 is tubular, more preferably a cylindrical wall having an opening at its upper end through which the airflow enters the air outlet portion of the fan assembly. The base is preferably integral with the side walls so that it can extend outwardly from the lower open end of the side walls to enhance the stability of the fan assembly. The pedestal may have a generally circular outer circumference having at least 1.5 times, preferably at least twice as large as the diameter of the side wall of the body. Alternatively, the base can have any other desired shape, such as an elliptical or polygonal shape. The base can be located on a rotatable base plate for allowing the user to rotate the fan assembly to redirect the airflow generated by the fan assembly. The base plate can be oscillated by an oscillation mechanism to sweep the air flow at an angle of, for example, about 9 。. The fan assembly preferably includes a support for supporting the motor and the impeller. The side wall preferably includes a hole into which the support body is inserted. For example, the support body can include a frame that can be inserted into the aperture of the side wall of the body through the lower open end of the side wall. The lower end of the frame is preferably closed to provide a substantially continuous lower surface of the fan assembly. The frame is preferably a tubular frame that is substantially coaxial with the side walls of the body. The frame preferably includes a plurality of apertures through which the airflow passes between the air inlet and the impeller. The power supply circuit is preferably mounted on the support body, so that the main body is inserted simultaneously with the baffle body. During assembly, the motor and impeller can be inserted into the body through the lower open end of the side wall before the support is inserted into the body. The actuator can then be connected to the power supply circuit, for example by a hole formed in the side wall of the body, to enable the user to selectively turn the motor on and off. The annular diffuser can be located between the impeller and the air outlet 6 M428649 to control the fluid properties of the airflow from the impeller before it enters the air outlet. The diffuser can be integral with the outer casing of the motor or can be a separate component. Each of the outer and inner portions is preferably annular in shape such that the opening has a generally circular cross section. The fan assembly preferably has a relatively small size; the diameter of the opening is preferably less than 150 mm, and the height of the fan assembly is preferably less than 250 mm. Thus, the fan assembly can be a portable fan assembly suitable for use on a table, bench or other piece of furniture, or in a car, caravan or other vehicle having a suitable external power source for driving the motor of the fan assembly. The air inlet may include one or more apertures formed in the side walls of the body through which the airflow enters the body. The air outlet portion may include a single air outlet that extends around the opening, preferably around the opening. Alternatively, the air outlet portion may include a plurality of air outlets spaced around the opening. For example, the air outlet portion can include a pair of air outlets on opposite sides of the opening, each air outlet emitting a respective portion of the air flow. The air outlet or each air outlet is preferably in the form of a slot, preferably having a width in the range of 0.5 to 5 mm. In a preferred embodiment, the or each slot has a width of about 3 mm. A spacer may be formed on the outside of the air outlet portion for engaging the inside of the air outlet portion to maintain a relatively uniform interval between the inside and the outside of the air outlet portion. Alternatively, a spacer may be formed on the inside of the air outlet portion. The IL outlet is preferably positioned at the rear of the air outlet and is preferably configured to direct airflow through the aperture defined by the outer surface of the interior of the air outlet. The air outlet or each air outlet is preferably defined by an overlap of the inner surface of the inner portion of the air outlet portion and the inner surface of the outer portion. The air outlet portion preferably includes a surface adjacent the air outlet on which the air outlet is disposed to direct the airflow emitted therefrom. Preferably, the surface is a curved surface' more preferably a Coanda surface. The outer surface of the inner portion of the preferred 'air outlet portion is shaped to define a Coanda surface. The Coanda surface is a well known surface type on which fluid emanating from an outlet close to the surface exhibits a Coanda effect. The fluid tends to flow close to the surface, almost "clinging" the surface or "hugging" the surface of the surface. The Coanda effect has been proven and has a number of documented entrainment methods in which the primary airflow is directed over the Coanda surface. A description of the characteristics of the Coanda surface and the effects of fluids above the Coanda surface can be found in the literature, for example, Reba, Scientific American, Volume 214, June 1966, pages 84-92. By using the Coanda surface, the air emitted by the air outlet draws an increased amount of air from the outside of the fan assembly through the opening. In a preferred embodiment, an air flow is generated which is emitted from the air outlet portion of the fan assembly. In the following description, this airflow will be referred to as the primary airflow. The main airflow passes over the surface of the Coanda. The primary air stream entrains the air surrounding the air outlet portion. It acts as an air amplifier to provide the user with the primary airflow and the entrained air. The air that is entrained will be referred to herein as the secondary airflow. The secondary airflow is drawn from the interior space, the area, or the external environment surrounding the nozzle's 8 M428649 nozzle, and is pumped from other areas around the fan assembly and primarily through the doorway defined by the air outlet. The primary airflow above the surface of the Coanda that is combined with the entrained secondary airflow is equal to the total airflow that is emitted or emitted forward from the air outlet of the fan assembly. The preferred 'air outlet portion includes a diffuser surface located downstream of the Coanda surface. The diffuser surface directs airflow towards the user's position while maintaining a smooth, uniform output. In a second aspect of the present invention, a fan assembly is provided, comprising: a body including an air inlet, an impeller, and a motor for driving the impeller to draw airflow through the air inlet; the air outlet portion 'includes for receiving airflow from the body. An air passage, at least _ air outlets for venting air from the fan assembly, and a Coanda surface, the at least one air outlet configured to direct airflow therefrom to the surface of the Coanda; input terminals for external use The power supply receives a DC voltage preferably in the range of 4 to 12 V; and the power supply circuit 'connects to the input terminal for supplying a driving voltage to the motor. The Coanda surface preferably extends for an axis orthogonal to the plane of the opening. The angle between the surface of the Coanda and the shaft is preferably 5 to 3 inches. In the range, it is more preferably 15 to 25. Within the scope. The body and the air outlet portion are preferably formed of a plastic material. For example, the inside and outside of the main body and the air outlet portion may be formed of a polycarbonate (pc) material such as a mixture of pc/acrylonitrile butadiene styrene (ABS). The impeller and the diffuser located directly downstream of the 9 leaf are also preferably formed of a plastic material, and PC/ABS can also be used to form these components. The slab body can also be made of plastic material, but since the component is primarily located within the body, it can be formed from a relatively fragile plastic material, such as a polypropylene/talc ((10)) mixture. In a second aspect, the present invention provides a fan assembly comprising: a body including an air inlet, an impeller, and a motor for driving the impeller to draw airflow through the gas inlet; the air outlet portion including the first annular portion, a soaring v, an air outlet and an opening, the first annular portion being integral with a portion of the body, the second annular portion being coupled to the first annular portion, the first annular portion defining the second annular portion for receiving from the body The air passage of the air flow, the air outlet is for ejecting air from the fan assembly, and the air from the outside of the fan assembly is drawn through the opening by the air flow emitted by the air outlet. Preferably, the two air outlet portion includes an outer and inner portion defining an air passage, an air outlet and an opening, and the main body includes a side wall accommodating the motor and the impeller, the side wall preferably being integral with the outer portion of the air outlet portion of the fan assembly. The side wall preferably includes an air inlet for the body. The above features according to the first aspect of the present creation are equally applied to the second and third aspects of the present creation, and vice versa. [Embodiment] Preferred features of the present invention will now be described by way of example only with reference to the accompanying drawings. 1 and 2 show the fan assembly 10. The fan assembly 1A includes a main body having an air inlet portion 12 and an air outlet portion 14. The air inlet 12 includes a generally cylindrical side wall 16' having an air inlet 18 formed in the side wall μ in the form of a plurality of M428649 holes through which the main air flow is drawn from the external environment into the air inlet portion 12. The air outlet portion 14 includes an air outlet 2 for emitting a main air flow from the fan assembly 10. The air outlet portion 14 includes an annular outer portion 22 that is coupled to the annular interior 24 and extends around the annular inner portion 24. The annular portions 22, 24 of the air outlet portion 14 extend around the opening 26 and define an opening 26. The female one of these knives may be formed of a plurality of joined portions, but in the present embodiment each of the 'outer portion 22 and the inner portion 24' is formed by a respective single molded portion. In the present example 'the outer portion 22 is integral with the side soil 16 of the air inlet portion 12, but the outer portion 22 can be, for example, by a snap-fit connection, a bayonet fitting, a screw mounting, a bonding, an ultrasonic welding Or any other suitable connection to connect to the side wall 16. The inner portion 24 is inserted into the outer portion 22 through the open front end 28 of the outer portion 22 during assembly. As shown in FIG. 3, the front end 28 is received in a rearward facing annular slot 30 at the front of the interior 24. The outer portion 22 and the inner portion 24 can be joined together using an adhesive introduced into the slot 30. The outer portion 22 and the inner portion 24 together define an annular inner passage 32 (shown in Figure 3) for conveying the primary air flow to the air outlet 20. The inner passage 32 is defined by the inner surface of the outer portion 22 and the inner surface of the inner portion 24. The side wall 16 of the air inlet portion 12 has an open upper end 34 that defines a hole through which the primary airflow enters the internal passage 32 from the air inlet portion 12. The air outlet 20 is positioned at the rear of the air outlet portion 14 and is configured to vent the main air flow toward the front of the fan assembly 1 through the opening 26. Air 11 M428649 The outlet 20 extends at least partially around the opening 26 and preferably surrounds the opening 26. The air outlet 20 is defined by overlapping portions of the inner surface of the outer portion 22 with portions of the outer surface of the inner portion 24, respectively, and is in the form of an annular slot, preferably having a relatively constant range of 0.5 to 5 mm. The width. In this example, the air outlet has a width of about 3 mm. The spacers 35 can be spaced around the air outlet 20 for pushing the overlap of the outer portion 22 and the interior 24 to maintain the width of the air outlet 20 at a desired level. These spacers 35 may be integral with the outer portion 22 or the inner portion 24, in this example, integral with the outer portion 22. The air outlet 20 is shaped to direct the primary airflow above the outer surface of the interior 24. The outer surface of the interior 24 includes a Coanda surface 36 that is positioned adjacent the air outlet 20 and a diffuser surface 38 that directs air emanating from the fan assembly 10 above the Coanda surface 36, the diffuser Surface 38 is located downstream of Coanda surface 36. The diffuser surface 38 configuration can taper away from the central axis X of the opening 26 to assist in the flow of air emanating from the fan assembly 10. The angle between the diffuser surface 38 and the central axis X of the opening 26 is in the range of 5 to 30, which is about 24 in this example. As mentioned above, the air inlet portion 12 includes a side wall 16 that is integral with the outer portion 22 of the air outlet portion 14. The side wall 16 is generally cylindrical and has an open upper end 34, an open lower end 40 and an aperture 42. The side wall 16 includes an air inlet 18 through which the initial air flow enters the fan assembly 10. In this embodiment, the air inlet 18 includes an array of holes formed in the side walls 16. Alternatively, the air inlet 18 may include one or more meshes or elements mounted in a window formed in the side wall 16 of the Ansett M. Fan assembly 10 includes a base 44' that is adapted to engage a surface on which fan assembly 10 is disposed. The base 44 is coupled to the side wall 16 of the air inlet portion 12 and is preferably integral with the side wall 16 of the air inlet portion 12. The base 44 extends outwardly from the lower end 40 of the side wall 16. In this example, the base 44 is in the form of an annular plate having a circular outer edge having a diameter that is about twice the diameter of the side wall 16.
風扇組件10的高度在150至250mm範圍内，在此 示例中是210mm左右。基座44的直徑在100至2〇〇mm 範圍内’在此示例中是130mm左右。由空氣出口部14 定義的開口 26的直徑從風扇組件的後部朝風扇組件 10的前部增加，在此示例中，該直徑從風扇組件1〇後 部的90mm左右變化到在風扇組件1〇的前部的i3〇mm 左右。因此風扇組件1G的尺寸形成為可容易地定位在The height of the fan assembly 10 is in the range of 150 to 250 mm, which is about 210 mm in this example. The diameter of the susceptor 44 is in the range of 100 to 2 〇〇 mm and is about 130 mm in this example. The diameter of the opening 26 defined by the air outlet portion 14 increases from the rear of the fan assembly toward the front of the fan assembly 10, which in this example varies from about 90 mm at the rear of the fan assembly 1 to the front of the fan assembly 1 The i3〇mm of the ministry. Therefore, the fan assembly 1G is sized to be easily positioned at
桌子或其他1作表面±，或者在架子、凸出物㈣或 其他類似的表面I*。 一 工軋入口部12容納馬達和葉輪單 ' Θ 地由46指示’用於驅動主氣流穿過 空氣入口 18並進入孔由 單元46包括連接到旋轉^如圖4所示，馬達和葉輪 從馬達52向外延=:0,48,該旋轉轴5。 達52提取小於方式中’於使用中，馬 & 48、軸u 率，較佳小於5W的功率。葉 輪 及馬相較佳容納在通過㈣】6的敞開 13 下端40插入到空氣入口部12的馬達和葉輪單元46 中°空氣入口部12包括具有多個葉片的環形擴散器 54 ’該多個葉片用於接收從葉輪48排出的主氣流並用 於引導該氣流進入空氣出口部14。擴散器54可以與馬 ^和葉輪單元46成一體，或者如此示例中一樣，擴散 =54可以是在馬達和葉輪單元46之前插入到空氣入口 4 12的單獨的部件，使得它鄰近側壁π的敞開上端 34疋位’並由馬達和葉輪單元46的上端支撐。風扇組 件10的主體可以包括從主體的内表面向内延伸的凸出 物55，以防止擴散器54超過側壁16的敞開上端34。 馬達和葉輪單元46在空氣入口部12内由支撐體 56支樓。支撐體56包括大致管形的框58，該框58與 側壁16同軸並包括多個孔洞6〇,主氣流通過該孔洞6〇 在空氣入口 18與葉輪48之間穿過。馬達和葉輪單元 46由支撑體56的上端支撐》支撐體56還定位電源供 應電路62 ’該電源供應電路62連接到馬達52用於向 馬達52提供驅動電壓。類似於馬達和葉輪單元46，支 撑體56通過側壁16的敞開下端40插入到空氣入口部 12 °支樓體56較佳具有支撐體基座64，該支撐體基座 64用於在支撐體56完全插入側壁16的孔42時封閉側 壁16的敞開下端40。或者，支撐體基座64可以是在 支樓體56之後插入到側壁a的孔42的單獨的部件。 支樓體基座64的外表面可以通過卡扣連接而連接到側 壁16 °或者’支撐體基座64可以使用螺釘或其他緊固 M428649 件固定到側壁16或基座44。 支撐體56較佳包括多個用於定位電路62的彈性定 位器66。電路62包括用於從外部電源接收較佳在4至 13V範圍内的直流(DC)電壓的輸入端子68。在此示例 中’輸入端子68被構造為用於連接到配接器（未示出）， 該配接器用於將交流(AC)電壓、諸如市電電源提供的Table or other 1 surface ±, or on the shelf, projections (4) or other similar surface I*. A work roll inlet 12 receives the motor and the impeller is ''indicated by 46' for driving the main airflow through the air inlet 18 and into the hole. The unit 46 includes a connection to the rotation ^ as shown in Figure 4, the motor and the impeller from the motor 52-direction extension =: 0, 48, the rotation axis 5. Up to 52 is extracted in less than the mode 'in use, horse & 48, axis u rate, preferably less than 5W. The impeller and the horse phase are preferably housed in a motor and impeller unit 46 that is inserted through the open 13 lower end 40 of the (4) 6 into the air inlet portion 12. The air inlet portion 12 includes an annular diffuser 54 having a plurality of blades. It is for receiving the main air flow discharged from the impeller 48 and for guiding the air flow into the air outlet portion 14. The diffuser 54 can be integral with the horse and impeller unit 46, or as in the example, diffusion = 54 can be a separate component that is inserted into the air inlet 412 prior to the motor and impeller unit 46 such that it is open adjacent the side wall π The upper end 34 is clamped 'and supported by the upper end of the motor and impeller unit 46. The body of the fan assembly 10 can include a projection 55 extending inwardly from the inner surface of the body to prevent the diffuser 54 from exceeding the open upper end 34 of the side wall 16. The motor and impeller unit 46 is supported by the support 56 in the air inlet portion 12. The support body 56 includes a generally tubular frame 58 that is coaxial with the side wall 16 and includes a plurality of apertures 6 through which the primary airflow passes between the air inlet 18 and the impeller 48. The motor and impeller unit 46 is supported by the upper end of the support body 56. The support body 56 also positions the power supply circuit 62'. The power supply circuit 62 is connected to the motor 52 for supplying a drive voltage to the motor 52. Similar to the motor and impeller unit 46, the support body 56 is inserted through the open lower end 40 of the side wall 16 into the air inlet portion. The pedestal body 56 preferably has a support base 64 for use in the support body 56. The open lower end 40 of the side wall 16 is closed when the hole 42 of the side wall 16 is fully inserted. Alternatively, the support base 64 may be a separate component that is inserted into the aperture 42 of the side wall a after the support body 56. The outer surface of the pedestal base 64 can be attached to the side wall 16 by a snap connection or the support base 64 can be secured to the side wall 16 or base 44 using screws or other fastening M428649 pieces. Support 56 preferably includes a plurality of resilient spacers 66 for positioning circuitry 62. Circuitry 62 includes an input terminal 68 for receiving a direct current (DC) voltage, preferably in the range of 4 to 13 volts, from an external power source. In this example the 'input terminal 68 is configured for connection to an adapter (not shown) for providing an alternating current (AC) voltage, such as that provided by a mains supply
110或220 AC電壓、轉換為DC電壓，例如4.8V DC 電壓。參考圖5，輸入端子68位於電路62上，以在支 撐體56插入到空氣入口部12時位於在側壁16的敞開 下端40中形成的狹槽7〇内。狹槽7〇較佳位於風扇組 件10的後部或在風扇組件的後部附近。 電路62還包括用於允許使用者選擇性地開啟或關 閉馬達52的開關72。開關72可以穿過位於側壁16的 前部的孔洞74突出，大致與輸入端子68相對，並可以 在電路62插入到空氣入口部I〗之後連接到電路62。 開關72可以為可按下或可旋轉開啟/關閉開關的形式， 或者可以為允許使用者改變葉輪48的旋轉速度的轉盤 的形式。電路62可以包括發光二極體(LED)或者其他照 明裝置’用於在風扇組件1〇被開啟時照亮側壁16的圍 繞開關72的部分。 為了操作風扇組件1〇,使用者使用配接器將輸入 端子68連接到市電電源，並按下開關72。作為響應， 電路62開啟馬達52以旋轉葉輪48。葉輪48的旋轉導 致主氣流穿過空氣入口 18被抽吸到空氣入口部12。主 15 M428649 氣流在穿過侧壁16的敞開上端34並進入空氣出口部 14之前，依序地穿過支撐體56的孔洞60及馬達和葉 輪單元46。 在空氣出口部14内，主氣流被分為兩股氣流，該 兩股氣流繞空氣出口部14的開口 26沿相反方向行進。 當氣流穿過内部通道32時，空氣通過空氣出口 20發 出。從空氣出口 20發出的主氣流被引導到空氣出口部 14的柯恩達表面36上方，從而導致次氣流，該次氣流 由來自外部環境(具體地，來自空氣出口 20周圍的區域 及來自空氣出口部14的後部周圍的區域）的空氣的捲吸 產生。該次氣流穿過空氣出口部14的開口 26,在該處， 次氣流與主氣流結合以產生從空氣出口部14向前發射 的總氣流或氣流。 【圖式簡單說明】 在附圖中： 圖1是風扇組件從上方的正面透視圖； 圖2是風扇組件的正視圖； 圖3是風扇組件沿圖2的線A-A’戴取的側截面圖； 圖4是馬達和葉輪單元的葉輪及馬達的分解圖；及 圖5是風扇組件的後視圖。 【主要元件符號說明】 10 風扇組件 12 空氣入口部 14 空氣出口部 16 M428649 側壁 空氣入口 空氣出口 環形（外)部/外部 環形（内）部/内部 開口 前端 狹槽 内部通道 上端 間隔物 柯恩達表面 擴散器表面 下端 孔 基座 馬達和葉輪單元 葉輪 轴 馬達 擴散器 凸出物 支撐體 框 17 M428649 60 孔洞 62 (電源供應）電路 64 支撐體基座 66 彈性定位器 68 輸入端子 70 狹槽 72 開關 74 孔洞110 or 220 AC voltage, converted to DC voltage, such as 4.8V DC voltage. Referring to Figure 5, the input terminal 68 is located on the circuit 62 to be located within the slot 7〇 formed in the open lower end 40 of the side wall 16 when the support body 56 is inserted into the air inlet portion 12. The slot 7 is preferably located at the rear of the fan assembly 10 or near the rear of the fan assembly. Circuitry 62 also includes a switch 72 for allowing a user to selectively turn motor 52 on or off. The switch 72 can protrude through a hole 74 at the front of the side wall 16, substantially opposite the input terminal 68, and can be connected to the circuit 62 after the circuit 62 is inserted into the air inlet portion I. The switch 72 can be in the form of a depressible or rotatable on/off switch or can be in the form of a dial that allows the user to vary the rotational speed of the impeller 48. Circuitry 62 may include a light emitting diode (LED) or other illumination device for illuminating the portion of side wall 16 surrounding switch 72 when fan assembly 1 is turned "on". To operate the fan assembly 1 〇, the user connects the input terminal 68 to the mains power supply using the adapter and presses the switch 72. In response, circuit 62 turns on motor 52 to rotate impeller 48. Rotation of the impeller 48 causes the primary air stream to be drawn through the air inlet 18 to the air inlet portion 12. Main 15 M428649 airflow sequentially passes through the aperture 60 of the support 56 and the motor and impeller unit 46 before passing through the open upper end 34 of the side wall 16 and into the air outlet portion 14. In the air outlet portion 14, the main air stream is divided into two air streams which travel in opposite directions around the opening 26 of the air outlet portion 14. Air flows through the air outlet 20 as it passes through the internal passage 32. The primary airflow emanating from the air outlet 20 is directed above the Coanda surface 36 of the air outlet portion 14, resulting in a secondary airflow from the external environment (specifically, from the area around the air outlet 20 and from the air outlet The entrapment of air by the area around the rear of the portion 14 is generated. The secondary airflow passes through the opening 26 of the air outlet portion 14 where the secondary airflow combines with the primary airflow to create a total airflow or airflow that is emitted forward from the air outlet portion 14. BRIEF DESCRIPTION OF THE DRAWINGS In the drawings: Figure 1 is a front perspective view of the fan assembly from above; Figure 2 is a front view of the fan assembly; Figure 3 is the side of the fan assembly taken along line A-A' of Figure 2 Fig. 4 is an exploded view of the impeller and motor of the motor and impeller unit; and Fig. 5 is a rear view of the fan assembly. [Main component symbol description] 10 Fan assembly 12 Air inlet portion 14 Air outlet portion 16 M428649 Side wall air inlet Air outlet ring (outer) / outer ring (inner) / internal opening front slot slot internal channel upper spacer Coanda Surface diffuser surface lower end hole base motor and impeller unit impeller shaft motor diffuser projection support frame 17 M428649 60 hole 62 (power supply) circuit 64 support base 66 elastic positioner 68 input terminal 70 slot 72 switch 74 holes