TW201917293A - Silent fan - Google Patents
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- TW201917293A TW201917293A TW106135993A TW106135993A TW201917293A TW 201917293 A TW201917293 A TW 201917293A TW 106135993 A TW106135993 A TW 106135993A TW 106135993 A TW106135993 A TW 106135993A TW 201917293 A TW201917293 A TW 201917293A
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Abstract
Description
本發明係有關於一種靜音風扇，特別是有關於一種具有可調式噪音消除裝置之離心式靜音風扇。The present invention relates to a silent fan, and more particularly to a centrifugal silent fan having an adjustable noise canceling device.
近年來，由於電子、資訊工業的迅速發展，其相關之產品亦日益精密。就目前個人電腦領域觀之，除了尋求更高速、運算能力更強之計算功能之運算單元和各式各樣週邊設備之配合來滿足使用者需求外，針對輕薄之可攜式電子設備亦為業界發展之重點領域。In recent years, due to the rapid development of electronics and information industry, its related products have become increasingly sophisticated. In view of the current personal computer field, in addition to the search for a higher-speed, more computationally-computing computing unit and a variety of peripheral devices to meet user needs, the portable electronic devices for the thin and light are also in the industry. Key areas of development.
現有之電子產品，例如是筆記型電腦、平板電腦（Tablet PC）、一體式（all in one；AIO）電腦，以及其他的電子裝置，為了提升處理器計算速度，大多使用風扇搭配散熱鰭片方式提供主動式散熱。Existing electronic products, such as notebook computers, tablet PCs, all in one (AIO) computers, and other electronic devices, in order to increase the speed of the processor, most of the fans use cooling fins Provides active cooling.
然而，風扇的噪音值與其轉速成正相關，且風扇轉動所引起噪音上限必須符合噪音需求，因此風扇的轉速會受到限制，因而無法進一步增加其散熱性能。However, the noise value of the fan is positively correlated with its rotational speed, and the upper noise limit caused by the rotation of the fan must meet the noise requirement, so the speed of the fan is limited, so that the heat dissipation performance cannot be further increased.
如何能有效改善風扇的噪音，以進一步提升風扇的散熱性能，進而有效地降低電子產品的工作溫度，也才能更進一步地提升電子產品的工作效率。How to effectively improve the noise of the fan to further improve the heat dissipation performance of the fan, thereby effectively reducing the operating temperature of the electronic product, and further improving the working efficiency of the electronic product.
有鑒於此，本發明揭露一種靜音風扇，可以根據風扇轉速改變噪音消除裝置的有效長度，有效地降低風扇的噪音。In view of this, the present invention discloses a silent fan, which can change the effective length of the noise canceling device according to the fan speed, and effectively reduce the noise of the fan.
根據本發明之一實施例，本發明係揭露一種靜音風扇包含有一風扇以及一可調式噪音消除裝置。可調式噪音消除裝置安裝於風扇的一側邊。其中，可調式噪音消除裝置包含有一外殼以形成一消音室，以及一活塞安裝於消音室，以調整消音室的一有效長度。According to an embodiment of the invention, a silent fan includes a fan and an adjustable noise canceling device. The adjustable noise canceling device is mounted on one side of the fan. Wherein, the adjustable noise canceling device comprises a casing to form a muffler chamber, and a piston is mounted on the muffler chamber to adjust an effective length of the muffler chamber.
在一實施例中，可調式噪音消除裝置更包含有一彈性元件，連接於外殼與活塞之間。In an embodiment, the adjustable noise canceling device further includes a resilient member coupled between the housing and the piston.
在一實施例中，可調式噪音消除裝置更包含有一第一電磁鐵，以移動活塞的位置。In an embodiment, the adjustable noise canceling device further includes a first electromagnet to move the position of the piston.
在一實施例中，可調式噪音消除裝置更包含有一第二電磁鐵，相對於第一電磁鐵設置，以移動活塞的位置。In an embodiment, the adjustable noise canceling device further includes a second electromagnet disposed relative to the first electromagnet to move the position of the piston.
在一實施例中，彈性元件係一彈性拉桿模組。此彈性拉桿模組包含有一彈性桿以及一磁性元件固定於彈性桿的一中間位置。此外，彈性拉桿模組更包含有一固定座、一第一樞接部以及一第二樞接部。固定座固定於外殼之上，第一樞接部用以樞接彈性桿與固定座，而第二樞接部用以樞接彈性桿與活塞。In an embodiment, the elastic element is an elastic tie rod module. The elastic tie rod module comprises an elastic rod and a magnetic element fixed to an intermediate position of the elastic rod. In addition, the elastic rod module further includes a fixing base, a first pivoting portion and a second pivoting portion. The fixing base is fixed on the outer casing, the first pivoting portion is for pivoting the elastic rod and the fixing seat, and the second pivoting portion is for pivoting the elastic rod and the piston.
在一實施例中，靜音風扇更包含有一磁性元件設置於活塞之上，以及一第一電磁鐵以及一第二電磁鐵設置於磁性元件的兩側，以移動活塞的位置。In one embodiment, the silent fan further includes a magnetic component disposed on the piston, and a first electromagnet and a second electromagnet disposed on opposite sides of the magnetic component to move the position of the piston.
在一實施例中，風扇是一離心式風扇。In an embodiment, the fan is a centrifugal fan.
有鑑於此，本發明之靜音風扇可以根據風扇的轉速，調整可調式噪音消除裝置的消音室之有效長度，抵銷風扇轉動時的主要噪音頻率的音量，以降低風扇噪音，更能在符合噪音要求的情況下，提升風扇轉速，進而提升風扇的散熱能力，有效地降低電子產品的工作溫度，以提升電子產品的工作效率。In view of this, the silent fan of the present invention can adjust the effective length of the muffler chamber of the adjustable noise canceling device according to the rotational speed of the fan, offsetting the volume of the main noise frequency when the fan rotates, to reduce the fan noise, and more in compliance with the noise. When required, the fan speed is increased, thereby improving the heat dissipation capability of the fan, and effectively reducing the operating temperature of the electronic product to improve the working efficiency of the electronic product.
下文係舉實施例配合所附圖式進行詳細說明，但所提供之實施例並非用以限制本揭露所涵蓋的範圍，而結構運作之描述非用以限制其執行之順序，任何由元件重新組合之結構，所產生具有均等功效的裝置，皆為本揭露所涵蓋的範圍。另外，圖式僅以說明為目的，並未依照原尺寸作圖。為使便於理解，下述說明中相同元件或相似元件將以相同之符號標示來說明。The following is a detailed description of the embodiments, but the embodiments are not intended to limit the scope of the disclosure, and the description of the structural operation is not intended to limit the order of execution, and any components are recombined. The structure and the device with equal efficiency are all covered by the disclosure. In addition, the drawings are for illustrative purposes only and are not drawn to the original dimensions. For the sake of understanding, the same or similar elements in the following description will be denoted by the same reference numerals.
另外，在全篇說明書與申請專利範圍所使用之用詞（terms），除有特別註明外，通常具有每個用詞使用在此領域中、在此揭露之內容中與特殊內容中的平常意義。某些用以描述本揭露之用詞將於下或在此說明書的別處討論，以提供本領域技術人員在有關本揭露之描述上額外的引導。In addition, the terms used in the entire specification and the scope of the patent application, unless otherwise specified, usually have the usual meaning of each word used in the field, in the content disclosed herein and in the special content. . Certain terms used to describe the disclosure are discussed below or elsewhere in this specification to provide additional guidance to those skilled in the art in the description of the disclosure.
於實施方式與申請專利範圍中，除非內文中對於冠詞有所特別限定，否則『一』與『該』可泛指單一個或複數個。而步驟中所使用之編號僅係用來標示步驟以便於說明，而非用來限制前後順序及實施方式。In the scope of the embodiments and patent applications, unless the context specifically dictates the articles, "a" and "the" may mean a single or plural. The numbers used in the steps are merely used to indicate steps for explanation, and are not intended to limit the order and the embodiments.
其次，在本文中所使用的用詞『包含』、『包括』、『具有』、『含有』等等，均為開放性的用語，即意指包含但不限於。Secondly, the terms "including", "including", "having", "containing", and the like, as used herein, are all open terms, meaning, but not limited to.
參閱第1圖，第1圖是依照本發明第一實施例所繪示的一種靜音風扇的示意圖。如圖所示，靜音風扇100包含有一風扇110以及一可調式噪音消除裝置120。可調式噪音消除裝置120安裝於風扇110的一側邊，以根據風扇110的轉速調整有效長度，進而抵銷風扇的主要噪音頻率的音量。其中，風扇110可以是一離心式風扇，用來降低電子產品的工作溫度，特別是消除電子產品的處理器所產生的熱量。Referring to FIG. 1 , FIG. 1 is a schematic diagram of a silent fan according to a first embodiment of the present invention. As shown, the silent fan 100 includes a fan 110 and an adjustable noise canceling device 120. The adjustable noise canceling device 120 is mounted on one side of the fan 110 to adjust the effective length according to the rotational speed of the fan 110, thereby offsetting the volume of the main noise frequency of the fan. The fan 110 can be a centrifugal fan for reducing the operating temperature of the electronic product, in particular, the heat generated by the processor of the electronic product.
在降低噪音部分，傳統的1/4消音管，受限於外型設計完成後，可降低的噪音頻率就隨之固定。而本發明之可調式噪音消除裝置120，可以根據離心式風扇的轉速，改變消音室的有效長度，進而改變消除噪音的頻率。例如：在環境溫度20攝氏度時，當消音室的有效長度為10mm，本發明之可調式噪音消除裝置120可有效降低8575HZ的噪音(波長為40mm)。In the noise reduction section, the conventional 1/4 silencer is limited by the appearance of the design, and the reduced noise frequency is fixed. The adjustable noise canceling device 120 of the present invention can change the effective length of the muffler chamber according to the rotational speed of the centrifugal fan, thereby changing the frequency of eliminating noise. For example, when the ambient temperature is 20 degrees Celsius, when the effective length of the muffler chamber is 10 mm, the adjustable noise canceling device 120 of the present invention can effectively reduce the noise of the 8575 Hz (wavelength of 40 mm).
此外，由於現有的電子產品中，離心風扇轉速會隨著系統當時的散熱需求而改變，而離心風扇轉速又與其主要噪音頻率成正比。以離心風扇來看，當葉片數量為37葉，風扇轉速為6000轉/每分鐘，則其扇葉噪音之一倍頻為3700 HZ，當轉速增加為12000轉，則其扇葉噪音之一倍頻升高至7400 HZ。利用本發明之可調式噪音消除裝置120可以有效地在各種不同的轉速下消除主要的噪音頻率的音量，進而降低風扇所產生的噪音量。In addition, due to the current electronic products, the centrifugal fan speed will change with the system's current heat dissipation requirements, and the centrifugal fan speed is proportional to its main noise frequency. According to the centrifugal fan, when the number of blades is 37 and the fan speed is 6000 rpm, one of the fan noises is 3700 HZ. When the speed is increased to 12,000 rpm, the fan noise is one times. The frequency is increased to 7400 HZ. The adjustable noise canceling device 120 of the present invention can effectively eliminate the volume of the main noise frequency at various speeds, thereby reducing the amount of noise generated by the fan.
本發明之可調式噪音消除裝置120利用下列公式計算所需的消音室之有效長度： c=331+0.6T f=c/λ λ=4L 其中， c：聲速， T：環境溫度， f：噪音之目標頻率， λ：噪音波長， L：消音室有效長度。 因此，所需之消音管管長可由與目標頻率和環境溫度來決定，即L=(331+0.6T)/(4f)。The adjustable noise canceling device 120 of the present invention calculates the effective length of the desired muffler chamber using the following formula: c = 331 + 0.6 T f = c / λ λ = 4 L where c: speed of sound, T: ambient temperature, f: noise Target frequency, λ: noise wavelength, L: effective length of the muffler chamber. Therefore, the required muffler tube length can be determined by the target frequency and ambient temperature, ie L = (331 + 0.6T) / (4f).
經過上述之計算後，當風扇轉速確定後，即可有效地計算出所需的消音室有效長度，藉由本發明之可調式噪音消除裝置120即可調整消音室有效長度。After the above calculation, after the fan speed is determined, the required effective length of the muffler chamber can be effectively calculated, and the effective length of the muffler chamber can be adjusted by the adjustable noise canceling device 120 of the present invention.
在一實施例中，前述之可調式噪音消除裝置120包含有一外殼122及一活塞124。外殼122形成所需的一消音室130，而活塞124則安裝於消音室130之中，以根據風扇110的轉速改變消音室130的有效長度，例如是第一有效長度140以及第二有效長度150。當第一有效長度140短於第二有效長度150時，活塞124位於第一有效長度140時可消除較高頻率的風扇噪音，而當活塞124位於第二有效長度150時可消除較低頻率的風扇噪音。當風扇110轉速由低轉速漸漸增加至較高的轉速時，活塞124則根據轉速的改變，由第二有效長度150逐漸地向第一有效長度140的位置移動，以消除風扇110所產生之主要噪音頻率的音量。In one embodiment, the aforementioned adjustable noise canceling device 120 includes a housing 122 and a piston 124. The outer casing 122 forms a desired muffler chamber 130, and the piston 124 is mounted in the muffler chamber 130 to vary the effective length of the muffler chamber 130 according to the rotational speed of the fan 110, such as a first effective length 140 and a second effective length 150. . When the first effective length 140 is shorter than the second effective length 150, the piston 124 can eliminate the higher frequency fan noise when the first effective length 140 is located, and eliminate the lower frequency when the piston 124 is at the second effective length 150. Fan noise. When the rotational speed of the fan 110 is gradually increased from the low rotational speed to the higher rotational speed, the piston 124 is gradually moved from the second effective length 150 to the position of the first effective length 140 according to the change of the rotational speed to eliminate the main force generated by the fan 110. The volume of the noise frequency.
參閱第1圖，可調式噪音消除裝置120更包含有一彈性元件126以及一第一電磁鐵128。彈性元件126連接於外殼122與活塞124之間。根據風扇110的轉速，經由電子裝置的處理器或者獨立的計算元件，計算第一電磁鐵128所需的電流量，以改變第一電磁鐵128的磁力，進而移動活塞124至適當的位置。其中，活塞124可以整體由磁性材料所構成，活塞124亦可以是部分由磁性材料所構成，其均不脫離本發明之精神與範圍。當第一電磁鐵128磁力較大時，活塞124將壓縮彈性元件126，以使彈性元件126產生變形，進而增加消音室130的有效長度，而當第一電磁鐵128磁力較小時，彈性元件126將推動活塞124，以減少消音室130的有效長度。然，本發明並不限定於此，其亦可以利用拉伸彈簧或改變彈性元件126的形狀與構造，以控制活塞124的位置，其均不脫離本發明之精神與範圍。Referring to FIG. 1, the adjustable noise canceling device 120 further includes a resilient member 126 and a first electromagnet 128. The resilient member 126 is coupled between the outer casing 122 and the piston 124. Depending on the rotational speed of the fan 110, the amount of current required by the first electromagnet 128 is calculated via the processor of the electronic device or a separate computing component to vary the magnetic force of the first electromagnet 128, thereby moving the piston 124 to the appropriate position. The piston 124 may be entirely made of a magnetic material, and the piston 124 may be partially made of a magnetic material without departing from the spirit and scope of the invention. When the first electromagnet 128 has a large magnetic force, the piston 124 will compress the elastic member 126 to deform the elastic member 126, thereby increasing the effective length of the muffler chamber 130, and when the first electromagnet 128 has a small magnetic force, the elastic member The piston 126 will push the piston 124 to reduce the effective length of the muffler chamber 130. However, the present invention is not limited thereto, and it is also possible to utilize a tension spring or to change the shape and configuration of the elastic member 126 to control the position of the piston 124 without departing from the spirit and scope of the present invention.
此外，第一電磁鐵128可以是一盤狀或環狀的電磁鐵所形成，固定於外殼122之上。活塞124則可以是整體或部分為磁性材料，其均不脫離本發明之精神與範圍。In addition, the first electromagnet 128 may be formed by a disk or an annular electromagnet and fixed on the outer casing 122. The piston 124 may be entirely or partially magnetic, without departing from the spirit and scope of the invention.
此外，彈性元件126的虎克係數可由第一電磁鐵128之磁力範圍決定。當需要調整欲降噪之目標頻率時，可調整通過第一電磁鐵128的電流，來改變第一電磁鐵128之磁力，經過磁力與彈性力的力平衡之後，即可有效地決定活塞124於消音室130之位置，從而改變消音室130之有效長度。Additionally, the Hooke coefficient of the resilient member 126 can be determined by the magnetic range of the first electromagnet 128. When it is necessary to adjust the target frequency to be noise-reduced, the current passing through the first electromagnet 128 can be adjusted to change the magnetic force of the first electromagnet 128, and after the force of the magnetic force and the elastic force is balanced, the piston 124 can be effectively determined. The position of the muffler chamber 130 changes the effective length of the muffler chamber 130.
參閱第2圖，第2圖是依照本發明第二實施例所繪示的一種靜音風扇的示意圖。如圖所示，靜音風扇200包含有一風扇210以及一可調式噪音消除裝置220。一可調式噪音消除裝置220安裝於風扇210的一側邊，以根據風扇210的轉速調整有效長度，進而降低風扇的主要噪音頻率的音量。其中，風扇210可以是一離心式風扇，用來降低電子產品的工作溫度，特別是消除處理器所產生的熱量。Referring to FIG. 2, FIG. 2 is a schematic diagram of a silent fan according to a second embodiment of the present invention. As shown, the silent fan 200 includes a fan 210 and an adjustable noise canceling device 220. An adjustable noise canceling device 220 is mounted on one side of the fan 210 to adjust the effective length according to the rotational speed of the fan 210, thereby reducing the volume of the main noise frequency of the fan. The fan 210 can be a centrifugal fan for reducing the operating temperature of the electronic product, in particular, eliminating heat generated by the processor.
可調式噪音消除裝置220更包含有一外殼222及一活塞224。外殼222形成所需的一消音室230，而活塞224則安裝於消音室230之中，以根據風扇210的轉速改變消音室230的有效長度240。The adjustable noise cancellation device 220 further includes a housing 222 and a piston 224. The outer casing 222 forms a desired muffler chamber 230, and the piston 224 is mounted in the muffler chamber 230 to vary the effective length 240 of the muffler chamber 230 in accordance with the rotational speed of the fan 210.
可調式噪音消除裝置220更包含有一彈性元件226、一第一電磁鐵228以及一第二電磁鐵229。彈性元件226連接於外殼222與活塞224之間，而第一電磁鐵228以及第二電磁鐵229分別設置於活塞224兩側的外殼222之上。以根據風扇210的轉速，分別調整第一電磁鐵228以及第二電磁鐵229所需的電流量，進而改變第一電磁鐵228以及第二電磁鐵229的磁力，以移動活塞224至適當的位置。其中，活塞224可以整體由磁性材料所構成，活塞224亦可以是部分由磁性材料所構成，其均不脫離本發明之精神與範圍。當第一電磁鐵228的磁力大於第二電磁鐵229的磁力時，活塞224將壓縮彈性元件226，以使彈性元件226產生變形，進而增加消音室230的有效長度240，而當第一電磁鐵228的磁力小於第二電磁鐵229的磁力時，彈性元件226的彈性力將推動活塞224，以減少消音室230的有效長度240。然，本發明並不限定於此，其亦可以利用拉伸彈簧或改變彈性元件226的的形狀與構造，以控制活塞224的位置，其均不脫離本發明之精神與範圍。The adjustable noise canceling device 220 further includes an elastic member 226, a first electromagnet 228 and a second electromagnet 229. The elastic member 226 is connected between the outer casing 222 and the piston 224, and the first electromagnet 228 and the second electromagnet 229 are respectively disposed on the outer casing 222 on both sides of the piston 224. The amount of current required by the first electromagnet 228 and the second electromagnet 229 is adjusted according to the rotation speed of the fan 210, thereby changing the magnetic forces of the first electromagnet 228 and the second electromagnet 229 to move the piston 224 to an appropriate position. . The piston 224 may be entirely made of a magnetic material, and the piston 224 may be partially made of a magnetic material without departing from the spirit and scope of the invention. When the magnetic force of the first electromagnet 228 is greater than the magnetic force of the second electromagnet 229, the piston 224 will compress the elastic member 226 to deform the elastic member 226, thereby increasing the effective length 240 of the muffler chamber 230, while the first electromagnet When the magnetic force of 228 is less than the magnetic force of the second electromagnet 229, the elastic force of the resilient member 226 will push the piston 224 to reduce the effective length 240 of the muffler chamber 230. However, the present invention is not limited thereto, and it is also possible to utilize the shape and configuration of the tension spring or the elastic member 226 to control the position of the piston 224 without departing from the spirit and scope of the present invention.
此外，第一電磁鐵228以及第二電磁鐵229可以是一盤狀或環狀的電磁鐵所形成，固定於外殼222之上。活塞224則可以是整體或部分為磁性材料，其均不脫離本發明之精神與範圍。In addition, the first electromagnet 228 and the second electromagnet 229 may be formed by a disk or an annular electromagnet and fixed on the outer casing 222. The piston 224 may be entirely or partially magnetic, without departing from the spirit and scope of the invention.
再者，彈性元件226的虎克係數可由第一電磁鐵228以及第二電磁鐵229之磁力範圍決定。當需要調整欲降噪之目標頻率時，可調整通過第一電磁鐵228以及第二電磁鐵229的電流，來改變第一電磁鐵228以及第二電磁鐵229之磁力，經過磁力與彈性力的力平衡之後，即可有效地決定活塞224於消音室230之位置，從而改變消音室230之有效長度。Furthermore, the Hooke coefficient of the elastic member 226 can be determined by the magnetic range of the first electromagnet 228 and the second electromagnet 229. When it is necessary to adjust the target frequency to be noise-reduced, the current passing through the first electromagnet 228 and the second electromagnet 229 can be adjusted to change the magnetic forces of the first electromagnet 228 and the second electromagnet 229, and the magnetic force and the elastic force are After the force is balanced, the position of the piston 224 in the muffler chamber 230 can be effectively determined, thereby changing the effective length of the muffler chamber 230.
參閱第3圖，第3圖是依照本發明第三實施例所繪示的一種靜音風扇的示意圖。如圖所示，靜音風扇300包含有一風扇310以及一可調式噪音消除裝置320。可調式噪音消除裝置320安裝於風扇310的一側邊，以根據風扇310的轉速調整消音室的有效長度，進而降低風扇的主要噪音頻率的音量。其中，風扇310可以是一離心式風扇，用來降低電子產品的工作溫度，特別是消除處理器所產生的熱量。Referring to FIG. 3, FIG. 3 is a schematic diagram of a silent fan according to a third embodiment of the present invention. As shown, the silent fan 300 includes a fan 310 and an adjustable noise canceling device 320. The adjustable noise canceling device 320 is mounted on one side of the fan 310 to adjust the effective length of the muffler chamber according to the rotational speed of the fan 310, thereby reducing the volume of the main noise frequency of the fan. The fan 310 can be a centrifugal fan for reducing the operating temperature of the electronic product, in particular, eliminating heat generated by the processor.
可調式噪音消除裝置320更包含有一外殼322及一活塞324。外殼322形成所需的一消音室330，而活塞324則安裝於消音室330之中，以根據風扇310的轉速改變消音室330的有效長度340。The adjustable noise canceling device 320 further includes a housing 322 and a piston 324. The outer casing 322 forms a desired muffler chamber 330, and the piston 324 is mounted in the muffler chamber 330 to vary the effective length 340 of the muffler chamber 330 in accordance with the rotational speed of the fan 310.
可調式噪音消除裝置320更包含有一磁性元件326、一第一電磁鐵328以及一第二電磁鐵329。磁性元件326設置於活塞324的一側，而第一電磁鐵328以及第二電磁鐵329分別設置於活塞324兩側的外殼322之上。根據風扇310的轉速，調整第一電磁鐵328以及第二電磁鐵329所需的電流量，進而改變第一電磁鐵328以及第二電磁鐵329的磁力，以移動活塞324至適當的位置。其中，活塞324可以整體由磁性材料所構成，活塞324亦可以是部分由磁性材料所構成，其均不脫離本發明之精神與範圍。當第一電磁鐵328的磁力大於第二電磁鐵329的磁力時，第一電磁鐵328的磁力將吸引磁性元件326及活塞324，以增加消音室330的有效長度340，而當第一電磁鐵328的磁力小於第二電磁鐵329的磁力時，第二電磁鐵329的磁力將吸引磁性元件326及活塞324，以減少消音室330的有效長度340。The adjustable noise canceling device 320 further includes a magnetic element 326, a first electromagnet 328 and a second electromagnet 329. The magnetic element 326 is disposed on one side of the piston 324, and the first electromagnet 328 and the second electromagnet 329 are respectively disposed on the outer casing 322 on both sides of the piston 324. According to the rotation speed of the fan 310, the amount of current required by the first electromagnet 328 and the second electromagnet 329 is adjusted, thereby changing the magnetic forces of the first electromagnet 328 and the second electromagnet 329 to move the piston 324 to an appropriate position. The piston 324 may be integrally formed of a magnetic material, and the piston 324 may be partially made of a magnetic material without departing from the spirit and scope of the present invention. When the magnetic force of the first electromagnet 328 is greater than the magnetic force of the second electromagnet 329, the magnetic force of the first electromagnet 328 will attract the magnetic element 326 and the piston 324 to increase the effective length 340 of the muffler chamber 330, while the first electromagnet When the magnetic force of 328 is less than the magnetic force of the second electromagnet 329, the magnetic force of the second electromagnet 329 will attract the magnetic element 326 and the piston 324 to reduce the effective length 340 of the muffler chamber 330.
此外，第一電磁鐵328以及第二電磁鐵329可以是一盤狀或環狀的電磁鐵所形成，固定於外殼322之上。磁性元件326則可以是一盤狀或環狀的磁性金屬，例如鐵，所形成，其均不脫離本發明之精神與範圍。In addition, the first electromagnet 328 and the second electromagnet 329 may be formed by a disk or an annular electromagnet and fixed on the outer casing 322. The magnetic element 326 may be formed of a disk or a ring of magnetic metal, such as iron, without departing from the spirit and scope of the present invention.
參閱第4圖，第4圖是依照本發明第四實施例所繪示的一種靜音風扇的示意圖。如圖所示，靜音風扇400包含有一風扇410以及一可調式噪音消除裝置420。可調式噪音消除裝置420安裝於風扇410的一側邊，以根據風扇410的轉速調整消音室的有效長度，進而降低風扇的主要噪音頻率的音量。其中，風扇410可以是一離心式風扇，用來降低電子產品的工作溫度，特別是消除處理器所產生的熱量。Referring to FIG. 4, FIG. 4 is a schematic diagram of a silent fan according to a fourth embodiment of the present invention. As shown, the silent fan 400 includes a fan 410 and an adjustable noise canceling device 420. The adjustable noise canceling device 420 is mounted on one side of the fan 410 to adjust the effective length of the muffler chamber according to the rotational speed of the fan 410, thereby reducing the volume of the main noise frequency of the fan. The fan 410 can be a centrifugal fan for reducing the operating temperature of the electronic product, in particular, eliminating heat generated by the processor.
可調式噪音消除裝置420更包含有一外殼422、一活塞424及一彈性拉桿模組450。The adjustable noise canceling device 420 further includes a housing 422, a piston 424 and a resilient pull rod module 450.
外殼422形成所需的一消音室430，而活塞424及彈性拉桿模組450則安裝於消音室430之中，以根據風扇410的轉速改變消音室430的有效長度440。彈性拉桿模組450包含有一固定座452、一彈性桿458以及一磁性元件456。磁性元件456固定於彈性桿458的一中間位置。其中，彈性桿458亦可以是一連桿組，而磁性元件456固定於連桿中間的一轉軸，其亦不脫離本發明之精神與範圍。此外，彈性拉桿模組450更包含有一第一樞接部454以及一第二樞接部455。固定座452固定於外殼422之上，利用第一樞接部454樞接彈性桿458與固定座452。而彈性桿458則更利用第二樞接部455，以樞接活塞455。The outer casing 422 forms a desired muffler chamber 430, and the piston 424 and the elastic tie rod module 450 are mounted in the muffler chamber 430 to vary the effective length 440 of the muffler chamber 430 in accordance with the rotational speed of the fan 410. The elastic tie rod module 450 includes a fixing base 452, an elastic rod 458 and a magnetic element 456. The magnetic element 456 is fixed to an intermediate position of the elastic rod 458. The elastic rod 458 can also be a link set, and the magnetic element 456 is fixed to a rotating shaft in the middle of the connecting rod without departing from the spirit and scope of the present invention. In addition, the elastic tie rod module 450 further includes a first pivoting portion 454 and a second pivoting portion 455. The fixing base 452 is fixed on the outer casing 422, and the elastic rod 458 and the fixing base 452 are pivotally connected by the first pivoting portion 454. The elastic rod 458 further utilizes the second pivoting portion 455 to pivotally connect the piston 455.
在此實施例中，第一電磁鐵428以及第二電磁鐵429分別設置於外殼422的兩邊，以根據風扇410的轉速，調整第一電磁鐵428以及第二電磁鐵429所需的電流量，進而改變第一電磁鐵428以及第二電磁鐵429的磁力，以移動磁性元件456，並拉動彈性桿458，進而使活塞424移動至適當的位置。當第一電磁鐵428的磁力大於第二電磁鐵429的磁力時，第一電磁鐵428的磁力將吸引磁性元件456，以改變消音室430的有效長度440，反之亦然。其中，彈性桿458的長度可以決定有效長度440的最小長度，而經由第一電磁鐵428以及第二電磁鐵429則可以改變彈性桿458曲度或角度，以增加有效長度440。然本發明並不限定於此，彈性桿458亦可以設置於消音室430中，或者調整彈性桿458的初始角度與長度，進而利用第一電磁鐵428以及第二電磁鐵429的磁力，以改變消音室430的有效長度440，其均不脫離本發明精神與範圍。In this embodiment, the first electromagnet 428 and the second electromagnet 429 are respectively disposed on two sides of the outer casing 422 to adjust the amount of current required by the first electromagnet 428 and the second electromagnet 429 according to the rotational speed of the fan 410. Further, the magnetic forces of the first electromagnet 428 and the second electromagnet 429 are changed to move the magnetic member 456 and pull the elastic rod 458 to move the piston 424 to an appropriate position. When the magnetic force of the first electromagnet 428 is greater than the magnetic force of the second electromagnet 429, the magnetic force of the first electromagnet 428 will attract the magnetic element 456 to change the effective length 440 of the muffler chamber 430, and vice versa. Wherein, the length of the elastic rod 458 can determine the minimum length of the effective length 440, and the curvature or angle of the elastic rod 458 can be changed via the first electromagnet 428 and the second electromagnet 429 to increase the effective length 440. However, the present invention is not limited thereto, and the elastic rod 458 may be disposed in the muffler chamber 430, or adjust the initial angle and length of the elastic rod 458, thereby utilizing the magnetic forces of the first electromagnet 428 and the second electromagnet 429 to change. The effective length 440 of the muffler chamber 430 is not departing from the spirit and scope of the present invention.
綜上所述，本發明之靜音風扇可以根據風扇的轉速，調整可調式噪音消除裝置的消音室的有效長度，減少風扇轉動時的主要噪音頻率的音量，進而有效改善風扇的噪音，以進一步提升風扇的散熱能力，更有效地降低電子產品的工作溫度，提升電子產品的工作效率。In summary, the silent fan of the present invention can adjust the effective length of the muffler chamber of the adjustable noise canceling device according to the rotational speed of the fan, and reduce the volume of the main noise frequency when the fan rotates, thereby effectively improving the noise of the fan to further improve The heat dissipation capability of the fan can effectively reduce the operating temperature of the electronic product and improve the working efficiency of the electronic product.
雖然本揭露已以實施方式揭露如上，然其並非用以限定本揭露，任何本領域具通常知識者，在不脫離本揭露之精神和範圍內，當可作各種之更動與潤飾，因此本揭露之保護範圍當視後附之申請專利範圍所界定者為準。The present disclosure has been disclosed in the above embodiments, and is not intended to limit the disclosure. Any one of ordinary skill in the art can make various changes and refinements without departing from the spirit and scope of the disclosure. The scope of protection is subject to the definition of the scope of the patent application.
100‧‧‧靜音風扇100‧‧‧Mute fan
110‧‧‧離心式風扇110‧‧‧ centrifugal fan
120‧‧‧可調式噪音消除裝置120‧‧‧Adjustable noise cancelling device
122‧‧‧外殼122‧‧‧Shell
124‧‧‧活塞124‧‧‧Piston
126‧‧‧彈性元件126‧‧‧Flexible components
128‧‧‧第一電磁鐵128‧‧‧First electromagnet
130‧‧‧消音室130‧‧‧Mute room
140‧‧‧第一有效長度140‧‧‧first effective length
150‧‧‧第二有效長度150‧‧‧second effective length
200‧‧‧靜音風扇200‧‧‧Silent fan
210‧‧‧離心式風扇210‧‧‧ centrifugal fan
220‧‧‧可調式噪音消除裝置220‧‧‧Adjustable noise canceling device
222‧‧‧外殼222‧‧‧ Shell
224‧‧‧活塞224‧‧‧Piston
226‧‧‧彈性元件226‧‧‧Flexible components
228‧‧‧第一電磁鐵228‧‧‧First electromagnet
229‧‧‧第二電磁鐵229‧‧‧Second electromagnet
230‧‧‧消音室230‧‧‧Mute room
240‧‧‧有效長度240‧‧‧effective length
300‧‧‧靜音風扇300‧‧‧Silent fan
310‧‧‧離心式風扇310‧‧‧ centrifugal fan
320‧‧‧可調式噪音消除裝置320‧‧‧Adjustable noise cancelling device
322‧‧‧外殼322‧‧‧ Shell
324‧‧‧活塞324‧‧‧Piston
326‧‧‧磁性元件326‧‧‧Magnetic components
328‧‧‧第一電磁鐵328‧‧‧First electromagnet
329‧‧‧第二電磁鐵329‧‧‧Second electromagnet
330‧‧‧消音室330‧‧‧Mute room
340‧‧‧有效長度340‧‧‧effective length
400‧‧‧靜音風扇400‧‧‧Silent fan
410‧‧‧離心式風扇410‧‧‧ centrifugal fan
420‧‧‧可調式噪音消除裝置420‧‧‧Adjustable noise canceling device
422‧‧‧外殼422‧‧‧Shell
424‧‧‧活塞424‧‧‧Piston
428‧‧‧第一電磁鐵428‧‧‧First electromagnet
429‧‧‧第二電磁鐵429‧‧‧Second electromagnet
430‧‧‧消音室430‧‧ ‧ silencer room
440‧‧‧有效長度440‧‧‧effective length
450‧‧‧彈性拉桿模組450‧‧‧elastic rod module
452‧‧‧固定座452‧‧‧ fixed seat
454‧‧‧第一樞接部454‧‧‧First pivotal
455‧‧‧第二樞接部455‧‧‧Second pivotal
456‧‧‧磁性元件456‧‧‧Magnetic components
458‧‧‧彈性桿458‧‧‧Flexible rod
為讓本揭露之上述和其他目的、特徵、優點與實施例能更明顯易懂，所附圖式之說明如下： 第1圖是依照本發明第一實施例所繪示的一種靜音風扇的示意圖。 第2圖是依照本發明第二實施例所繪示的一種靜音風扇的示意圖。 第3圖是依照本發明第三實施例所繪示的一種靜音風扇的示意圖。 第4圖是依照本發明第四實施例所繪示的一種靜音風扇的示意圖。The above and other objects, features, advantages and embodiments of the present disclosure will be more apparent and understood. The description of the drawings is as follows: FIG. 1 is a schematic diagram of a silent fan according to a first embodiment of the present invention. . 2 is a schematic view of a silent fan according to a second embodiment of the present invention. FIG. 3 is a schematic diagram of a silent fan according to a third embodiment of the present invention. 4 is a schematic view of a silent fan according to a fourth embodiment of the present invention.
Claims (10)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW106135993A TW201917293A (en) | 2017-10-19 | 2017-10-19 | Silent fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW106135993A TW201917293A (en) | 2017-10-19 | 2017-10-19 | Silent fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| TW201917293A true TW201917293A (en) | 2019-05-01 |
Family
ID=67347713
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| TW106135993A TW201917293A (en) | 2017-10-19 | 2017-10-19 | Silent fan |
Country Status (1)
| Country | Link |
|---|---|
| TW (1) | TW201917293A (en) |
-
2017
- 2017-10-19 TW TW106135993A patent/TW201917293A/en unknown
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