風扇降噪結構Fan noise reduction structure
一種風扇降噪結構，尤指透過結構引導風扇出口產生之高壓噴流引導至入口處藉以達到多重降噪的風扇降噪結構。A fan noise reduction structure, in particular, a fan noise reduction structure in which a high-pressure jet generated by a structure guiding a fan outlet is guided to an inlet to achieve multiple noise reduction.
風扇噪音一直是風扇領域中帶改善的眾多問題之一，不論是透過電路控制轉速，或改變風扇結構改善風扇噪音都是目前習知技術解決問題的技術手段，其中習知技術中美國專利US6244817揭示一種在動葉或靜葉框壁上僅設置噴流去抑制渦流，但是需要增加外接噴氣源，在有限的空間內就無法執行，並且也容易增加額外噴氣源設置的成本。 故如何在不額外增加設備之情況下又可以達到降低風扇噪音的方法係為熟悉該項技藝之人士所努力的目標。Fan noise has always been one of the many problems in the field of fan improvement. Whether it is to control the speed through the circuit or to change the fan structure to improve the fan noise is a technical means to solve the problem by the prior art. Among the prior art, US Pat. No. 6,244,879 discloses A jet is provided on the wall of the bucket or vane to suppress eddy currents, but the need to add an external jet source cannot be performed in a limited space, and it is also easy to increase the cost of the additional jet source setting. Therefore, how to reduce fan noise without additional equipment is a goal that is familiar to those skilled in the art.
爰此，為解決上述習知技術之缺點，本創作之主要目的，係提供一種透過於風扇框架本體設置自體噴流降噪之結構，解決風扇噪音的風扇降噪結構。 為達上述之目的，本創作係提供一種風扇降噪結構，係包含：一風扇框架本體，一連接部； 所述風扇框架本體具有一底側及一框側壁，所述框側壁垂直環設於該底側外周沿，並該框側壁內緣界定一氣流通道，並該氣流通道兩端分別具有一入口及一出口。 所述連接部設於該框側壁內，該連接部兩端連接該框側壁處具有一入口端及一出口端並連通該氣流通道。 為達上述之目的，本創作係提供一種風扇降噪結構，係包含：一第一風扇框架本體、一第二風扇框架本體、一連接部； 所述第一風扇框架本體具有一第一底側及一第一框側壁，所述第一框側壁垂直環設於該第一底側外周沿，並該第一框側壁內緣界定一第一氣流通道，並該第一氣流通道兩端分別具有一第一入口及一第一出口； 所述第二風扇框架本體具有一第二底側及一第二框側壁，所述第二框側壁垂直環設於該第二底側外周沿，並該第二框側壁內緣界定一第二氣流通道，並該第二氣流通道兩端分別具有一第二入口及一第二出口，所述第一、二框架本體選擇垂直或水平並列其中任一方式組設； 所述連接部具有一中間通道，該中間通道具有一入口端及一出口端並該入口端連通該第二框側壁之第二出口處，該出口端連通該第一框側壁之第一入口處。 透過本創作提供自體噴流結構，引導風扇出口處壓力較強之氣流向入口出進行噴流降噪，進而降低整體風扇之噪音者。Therefore, in order to solve the above-mentioned shortcomings of the prior art, the main purpose of the present invention is to provide a fan noise reduction structure that solves fan noise by providing a self-body jet noise reduction structure on the fan frame body. For the purpose of the above, the present invention provides a fan noise reduction structure, comprising: a fan frame body, a connecting portion; the fan frame body has a bottom side and a frame side wall, and the frame side wall is vertically ringed on the The bottom side outer circumference defines an air flow passage, and the air flow passage has an inlet and an outlet at two ends. The connecting portion is disposed in the side wall of the frame, and the two ends of the connecting portion are connected to the side wall of the frame to have an inlet end and an outlet end and communicate with the air flow passage. For the purpose of the above, the present invention provides a fan noise reduction structure, comprising: a first fan frame body, a second fan frame body, and a connecting portion; the first fan frame body has a first bottom side And a first frame side wall, the first frame side wall is vertically disposed on the first bottom side outer circumference, and the first frame side wall inner edge defines a first air flow channel, and the first air flow channel has two ends respectively a first inlet and a first outlet; the second fan frame body has a second bottom side and a second frame side wall, and the second frame side wall is vertically annularly disposed on the second bottom side outer circumference, and the The inner side wall of the second frame defines a second air flow channel, and the two ends of the second air flow channel respectively have a second inlet and a second outlet, and the first and second frame bodies are arranged vertically or horizontally in any manner. The connecting portion has an intermediate passage having an inlet end and an outlet end, and the inlet end communicates with the second outlet of the second frame side wall, and the outlet end communicates with the first frame side wall A entrance. Through the creation of the self-propelled jet structure, the airflow with strong pressure at the fan outlet is guided to the inlet to perform jet flow noise reduction, thereby reducing the noise of the overall fan.
本創作之上述目的及其結構與功能上的特性，將依據所附圖式之較佳實施例予以說明。 請參閱第1圖，係為本創作風扇降噪結構第一實施例之剖視圖，如圖所示，所述風扇降噪結構1，係包含：一風扇框架本體11、一連接部12； 所述風扇框架本體11具有一底側111及一框側壁112，所述框側壁112垂直環設於該底側111外周沿，並該框側壁112內緣界定氣流通道113，並該氣流通道113兩端分別具有一入口1131及一出口1132，所述出口1132設於氣流通道113靠近該底側111處，所述入口1131則設於該氣流通道113相反出口1132之一端。 所述連接部12設於該框側壁112內，該連接部具有一中間通道121兩端連接該框側壁112處具有一入口端122及一出口端123並連通該氣流通道113，所述入口端122設置靠近該出口1132處，所述出口端123設置靠近該入口1131處。 所述底側111具有一軸筒114，所述軸筒114由該底側111垂直延伸所構型。 請參閱第2圖，係為本創作風扇降噪結構第二實施例之剖視圖，如圖所示，所述風扇降噪結構2，係包含：一第一風扇框架本體21、一第二風扇框架本體22、一連接部23； 所述第一風扇框架本體21具有一第一底側211及一第一框側壁212，所述第一框側壁212垂直環設於該第一底側211外周沿，並該第一框側壁212內緣界定一第一氣流通道213，並該第一氣流通道213兩端分別具有一第一入口2131及一第一出口2132。 所述第二風扇框架本體22具有一第二底側221及一第二框側壁222，所述第二框側壁222垂直環設於該第二底側221外周沿，並該第二框側壁222內緣界定一第二氣流通道223，並該第二氣流通道223兩端分別具有一第二入口2231及一第二出口2232，所述第一、二框架本體21、22選擇垂直串接或水平並列其中任一方式組設，本實施例係以垂直串接式風扇設置說明並不引以為限，所述第一出口2132對接該第二入口2231。 所述連接部23具有一中間通道231，該中間通道231具有一入口端2311及一出口端2312並該入口端2311連通該第二框側壁222之第二出口2232處，該出口端2312連通該第一框側壁212之第一入口2131處。 透過由該連接部23中之中間通道231引導由該第二風扇框架本體22之第二出口2232具有較高壓之氣流向該第一風扇框架本體21的第一入口2131處進行噴流，進而達到降低噪音者。 所述第一底側211具有一第一軸筒2111，所述第一軸筒2111由該第一底側211垂直延伸所構型，所述第二底側221具有一第二軸筒2211，所述第二軸筒2211由該第二底側221垂直延伸所構型。 所述第一出口2132設於第一氣流通道213靠近該第一底側211處，所述第一入口2131則設於該第一氣流通道213相反第一出口2132之一端，所述入口端2311靠近該第二出口2232，該出口端2312靠近該第一入口2131。 所述第二出口2232設於第二氣流通道223靠近該第二底側221處，所述第二入口2231則設於該第二氣流通道223相反第二出口2232之一端。 請參閱第3圖，係為本創作風扇降噪結構第三實施例之剖視圖，如圖所示，所述風扇降噪結構3，係包含：一第一風扇框架本體31、一第二風扇框架本體32、一連接部33； 本實施例部分結構與前述第二實施例相同，故在此將不再贅述，惟本實施例與前述第二實施例之不同處在於，本實施例之第一、二風扇框架本體31、32係為水平並列設置，兩者間係為一種並聯式風扇設置，所述第一風扇框架本體31具有一第一入口311及一第一出口312，所述第二風扇框架本體32具有一第二入口321及一第二出口322，所述第一、二入口311、321並列設置，並透過所述連接部33中之中間通道331引導該第二風扇框架本體32之第二出口322具有較高壓之氣流向該第一風扇框架本體31的第一入口311處進行噴流，進而達到降低噪音者。 本創作主要透過風擅自體高壓處（出口處）的氣流對低壓處（入口處）進行噴流，進而降低風扇之噪音問題者。 所述連接部可以設置於風扇框架自體壁厚中或透過外掛其中任一方式進行設置皆可並不引以為限。The above object of the present invention, as well as its structural and functional features, will be described in accordance with the preferred embodiments of the drawings. 1 is a cross-sectional view of a first embodiment of a fan noise reduction structure of the present invention. As shown in the figure, the fan noise reduction structure 1 includes a fan frame body 11 and a connecting portion 12; The fan frame body 11 has a bottom side 111 and a frame side wall 112. The frame side wall 112 is vertically annularly disposed on the outer circumference of the bottom side 111, and the inner edge of the frame side wall 112 defines an air flow passage 113, and the air flow passage 113 has two ends. There is an inlet 1131 and an outlet 1132 respectively. The outlet 1132 is disposed near the bottom side 111 of the air flow passage 113, and the inlet 1131 is disposed at one end of the opposite end 1132 of the air flow passage 113. The connecting portion 12 is disposed in the side wall 112 of the frame. The connecting portion has an intermediate passage 121 connected to the side wall 112 of the frame and has an inlet end 122 and an outlet end 123 and communicates with the air flow passage 113. The inlet end 122 is disposed adjacent to the outlet 1132, the outlet end 123 being disposed proximate the inlet 1131. The bottom side 111 has a barrel 114 that is configured by the bottom side 111 extending vertically. FIG. 2 is a cross-sectional view showing a second embodiment of the fan noise reduction structure of the present invention. As shown in the figure, the fan noise reduction structure 2 includes: a first fan frame body 21 and a second fan frame. The first fan frame body 21 has a first bottom side 211 and a first frame side wall 212. The first frame side wall 212 is vertically annularly disposed on the outer periphery of the first bottom side 211. The first airflow channel 213 defines a first airflow channel 213, and the first airflow channel 213 has a first inlet 2131 and a first outlet 2132. The second fan frame body 22 has a second bottom side 221 and a second frame side wall 222. The second frame side wall 222 is vertically disposed on the outer edge of the second bottom side 221, and the second frame side wall 222 The inner edge defines a second air flow channel 223, and the second air flow channel 223 has a second inlet 2231 and a second outlet 2232 respectively. The first and second frame bodies 21 and 22 are vertically connected or horizontally selected. The first embodiment of the present invention is not limited to the description of the vertical series fan arrangement, and the first outlet 2132 is docked with the second inlet 2231. The connecting portion 23 has an intermediate passage 231 having an inlet end 2311 and an outlet end 2312 and the inlet end 2311 communicates with the second outlet 2232 of the second frame sidewall 222. The outlet end 2312 communicates with the outlet end 2312. The first inlet 2131 is at the first inlet 2131. The first inlet 2131 of the first fan frame body 21 is sprayed by the airflow of the second outlet 2232 of the second fan frame body 22 by the intermediate passage 231 in the connecting portion 23, thereby reducing the flow. Noise. The first bottom side 211 has a first shaft barrel 2111. The first shaft barrel 2111 is vertically extended by the first bottom side 211, and the second bottom side 221 has a second shaft barrel 2211. The second shaft barrel 2211 is configured by the second bottom side 221 extending vertically. The first outlet 2132 is disposed at the first bottom side 211 of the first air flow channel 213, and the first inlet 2131 is disposed at one end of the first air flow channel 213 opposite the first outlet 2132. The inlet end 2311 Close to the second outlet 2232, the outlet end 2312 is adjacent to the first inlet 2131. The second outlet 2232 is disposed at the second bottom side 221 of the second air flow passage 223, and the second inlet 2231 is disposed at one end of the second air flow passage 223 opposite the second outlet 2232. Referring to FIG. 3, it is a cross-sectional view of a third embodiment of the noise reduction structure of the present invention. As shown in the figure, the fan noise reduction structure 3 includes a first fan frame body 31 and a second fan frame. The structure of the present embodiment is the same as that of the foregoing second embodiment, and therefore will not be further described herein. However, the difference between the embodiment and the foregoing second embodiment lies in the first embodiment. The two fan frame bodies 31 and 32 are horizontally arranged in parallel, and the two are arranged in a parallel fan. The first fan frame body 31 has a first inlet 311 and a first outlet 312, and the second The fan frame body 32 has a second inlet 321 and a second outlet 322. The first and second inlets 311 and 321 are juxtaposed and guide the second fan frame body 32 through the intermediate passage 331 in the connecting portion 33. The second outlet 322 has a higher pressure airflow to the first inlet 311 of the first fan frame body 31 to spray, thereby achieving noise reduction. This creation mainly uses the airflow at the high pressure (exit) of the wind to spray the low pressure (in the entrance), thereby reducing the noise problem of the fan. The connecting portion may be disposed in the wall thickness of the fan frame or may be disposed by any means.
1‧‧‧風扇降噪結構
11‧‧‧風扇框架本體
111‧‧‧底側
112‧‧‧框側壁
113‧‧‧氣流通道
1131‧‧‧入口
1132‧‧‧出口
114‧‧‧軸筒
12‧‧‧連接部
121‧‧‧中間通道
122‧‧‧入口端
123‧‧‧出口端
2‧‧‧風扇降噪結構
21‧‧‧第一風扇框架本體
211‧‧‧第一底側
2111‧‧‧第一軸筒
212‧‧‧第一框側壁
213‧‧‧第一氣流通道
x2131‧‧‧第一出口
2132‧‧‧第一出口
22‧‧‧第二風扇框架本體
221‧‧‧第二底側
2211‧‧‧第二軸筒
222‧‧‧第二框側壁
223‧‧‧第二氣流通道
2231‧‧‧第二入口
2232‧‧‧第二出口
23‧‧‧連接部
231‧‧‧中間通道
2311‧‧‧入口端
2312‧‧‧出口端
3‧‧‧風扇降噪結構
31‧‧‧第一風扇框架本體
311‧‧‧第一入口
312‧‧‧第一出口
32‧‧‧第二風扇框架本體
321‧‧‧第二入口
322‧‧‧第二出口
33‧‧‧連接部
331‧‧‧中間通道1‧‧‧Fan noise reduction structure
11‧‧‧Fan frame body
111‧‧‧ bottom side
112‧‧‧ frame side wall
113‧‧‧Air passage
1131‧‧‧ entrance
1132‧‧ Export
114‧‧‧ shaft tube
12‧‧‧Connecting Department
121‧‧‧Intermediate passage
122‧‧‧ entrance end
123‧‧‧export end
2‧‧‧Fan noise reduction structure
21‧‧‧First fan frame body
211‧‧‧ first bottom side
2111‧‧‧First shaft tube
212‧‧‧ first frame side wall
213‧‧‧First airflow channel
X2131‧‧‧First exit
2132‧‧‧First exit
22‧‧‧Second fan frame body
221‧‧‧ second bottom side
2211‧‧‧Second shaft
222‧‧‧ second frame side wall
223‧‧‧Second airflow channel
2231‧‧‧second entrance
2232‧‧‧second exit
23‧‧‧Connecting Department
231‧‧‧Intermediate passage
2311‧‧‧ entrance end
2312‧‧‧Exit end
3‧‧‧Fan noise reduction structure
31‧‧‧First fan frame body
311‧‧‧ first entrance
312‧‧‧ first exit
32‧‧‧Second fan frame body
321‧‧‧second entrance
322‧‧‧second exit
33‧‧‧Connecting Department
331‧‧‧Intermediate passage
第1圖係為本創作風扇降噪結構第一實施例之剖視圖； 第2圖係為本創作風扇降噪結構第二實施例之剖視圖； 第3圖係為本創作風扇降噪結構第三實施例之剖視圖。1 is a cross-sectional view of a first embodiment of a fan noise reduction structure of the present invention; FIG. 2 is a cross-sectional view of a second embodiment of the fan noise reduction structure of the present invention; A cross-sectional view of the example.