TWI648473B - fan - Google Patents
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- TWI648473B TWI648473B TW106136220A TW106136220A TWI648473B TW I648473 B TWI648473 B TW I648473B TW 106136220 A TW106136220 A TW 106136220A TW 106136220 A TW106136220 A TW 106136220A TW I648473 B TWI648473 B TW I648473B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D25/00—Pumping installations or systems
- F04D25/02—Units comprising pumps and their driving means
- F04D25/08—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
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Abstract
一種風扇,其包含有:一導流罩,其為一設置面;一驅動單元,其係設於該導流罩;一葉片組,其係設於該驅動單元,該葉片組具有複數個葉片,該葉片組具有一設定直徑;以及一殼體,其係罩設該葉片組與該驅動單元,該殼體與該導流罩之間具有一第一風口,該第一風口具有一寬度,該寬度為一設定距離,該殼體的一面具有一第二風口,該設定距離與該設定直徑比係介於第一預定比例與第二預定比例之間。 A fan includes: a shroud, which is a setting surface; a drive unit, which is provided on the shroud; and a blade group, which is provided on the drive unit, and the blade group has a plurality of blades. The blade group has a set diameter; and a casing, which covers the blade group and the driving unit, a first air outlet between the casing and the shroud, and the first air outlet has a width, The width is a set distance, and a mask of the casing has a second air outlet, and the ratio of the set distance to the set diameter is between a first predetermined ratio and a second predetermined ratio.
Description
一種風扇,尤其指一種能夠提供正壓排氣循環之風扇。 A fan, especially a fan capable of providing positive pressure exhaust circulation.
天花板循環扇為一種節能舒適且可提高冷氣設定溫度之風扇。然而現有的天花板循環扇卻具有循環效率不佳、過於突出不美觀取無法抵抗靜壓、危安因素之缺點。 The ceiling circulation fan is an energy-saving and comfortable fan that can increase the air-conditioning set temperature. However, the existing ceiling circulation fan has the disadvantages of poor circulation efficiency, being too prominent and unattractive, and unable to resist static pressure and safety factors.
除了上述之缺點外,現有的天花板循環扇仍具有三個問題要面對,一為空間問題;二為性能問題;三為高度問題。 In addition to the above-mentioned shortcomings, the existing ceiling circulation fan still has three problems to be faced, one is space, the other is performance, and the third is height.
空間問題係為若天花板循環扇設於輕鋼架,則會有整機突出於輕鋼架,裝設受限,易受靜壓影響而失速。 The space problem is that if the ceiling circulation fan is installed on the light steel frame, the whole machine will protrude from the light steel frame, the installation is limited, and it is susceptible to static pressure and stall.
性能問題係為相關法規修正後有效率更高的需求,而現有的天花板循環扇係無法達到該效率更高的需求。 The performance problem is a demand for higher efficiency after the amendment of related regulations, but the existing ceiling circulation fan system cannot meet the demand for higher efficiency.
高度問題係為天花板循環扇有著扁薄化的開發設計需求,而現有的天花板循環扇係無法達到該扁薄化的需求。 The height problem is that the ceiling circulation fan has a thin and thin development and design requirement, and the existing ceiling circulation fan system cannot meet the thin and thin requirement.
如上所述,如何克服上述之缺點與問題,而使現有的天花板循環扇符合扁薄化與提升效率係仍有可改善的空間。 As mentioned above, there is still room for improvement in how to overcome the above-mentioned shortcomings and problems, and make the existing ceiling circulation fan comply with the thinning and improving the efficiency.
本發明係提供一種風扇,該風扇包含有:一導流罩,其為一設置面;一驅動單元,其係設於該導流罩;一葉片組,其係設於該驅動單元,該葉片組具有複數個葉片,該葉片組具有一設定直徑;一輪轂,其係設於該導流罩,該導流罩具有一導流結構,該驅動單元係被該導流結構與該輪轂所環繞,該驅動單元具有一軸 心,該軸心係耦接該葉片組,該些葉片係設於該輪轂;以及一殼體,其罩設該葉片組與該驅動單元,該殼體與該導流罩之間具有一第一風口,該第一風口具有一寬度,該寬度為一設定距離,該殼體的一面具有一第二風口;其中,該設定距離與該設定直徑比係介於第一預定比例與第二預定比例之間,該第一預定比例為0.1;該第二預定比例為0.3。 The invention provides a fan. The fan includes: a shroud, which is a setting surface; a drive unit, which is provided on the shroud; and a blade group, which is provided on the drive unit and the blade. The group has a plurality of blades, the blade group has a set diameter; a hub is provided on the shroud, the shroud has a flow guiding structure, and the driving unit is surrounded by the flow guiding structure and the hub , The drive unit has a shaft Center, the axis is coupled to the blade group, and the blades are arranged on the hub; and a casing, which covers the blade group and the driving unit, and a first section is arranged between the casing and the shroud. An air outlet, the first air outlet has a width, the width is a set distance, and a mask of the casing has a second air outlet; wherein the ratio of the set distance to the set diameter is between a first predetermined ratio and a second predetermined Between the ratios, the first predetermined ratio is 0.1; the second predetermined ratio is 0.3.
10‧‧‧導流罩 10‧‧‧ Shroud
100‧‧‧導流結構 100‧‧‧ diversion structure
11‧‧‧驅動單元 11‧‧‧Drive unit
110‧‧‧轉軸 110‧‧‧rotation shaft
111‧‧‧定子組 111‧‧‧Stator set
112‧‧‧轉子組 112‧‧‧rotor set
13‧‧‧葉片組 13‧‧‧ blade set
130‧‧‧輪轂 130‧‧‧ Wheel
131‧‧‧葉片 131‧‧‧ Blade
1310‧‧‧前緣 1310‧‧‧ Leading edge
1311‧‧‧後緣 1311 ‧ ‧ ‧
1312‧‧‧弧線 1312‧‧‧arc
12‧‧‧殼體 12‧‧‧shell
120‧‧‧第一風口 120‧‧‧first air outlet
121‧‧‧第二風口 121‧‧‧second air outlet
A~P‧‧‧曲線 A ~ P‧‧‧Curve
R‧‧‧最大厚度 R‧‧‧Maximum thickness
S‧‧‧最大彎度 S‧‧‧Max camber
SH‧‧‧設定距離 SH‧‧‧Set distance
SD‧‧‧設定直徑 SD‧‧‧set diameter
SL‧‧‧弦長 SL‧‧‧string length
20‧‧‧導流罩 20‧‧‧ Shroud
200‧‧‧導流結構 200‧‧‧ diversion structure
21‧‧‧驅動單元 21‧‧‧Drive unit
23‧‧‧葉片組 23‧‧‧ Blade Set
22‧‧‧殼體 22‧‧‧shell
220‧‧‧孔板 220‧‧‧ Orifice
221‧‧‧第二風口 221‧‧‧second air outlet
第1圖為本發明之一種風扇之第一實施例之示意圖。 FIG. 1 is a schematic diagram of a first embodiment of a fan according to the present invention.
第2圖為一進氣口寬度與風量於多個轉速之曲線圖。 Figure 2 is a graph of the width of an air inlet and the air volume at multiple speeds.
第3圖為一進氣口寬度與風量於多個轉速之曲線圖。 Figure 3 is a graph of the width of an air inlet and the air volume at multiple speeds.
第4圖為一進氣口寬度與衰減幅度之曲線圖。 Figure 4 is a graph of the width of the air inlet and the attenuation range.
第5圖為一靜壓與風量圖。 Figure 5 is a graph of static pressure and air volume.
第6圖為一NACA 4位數字之示意圖。 Figure 6 is a schematic diagram of a 4-digit NACA.
第7圖為本發明之一種風扇之第二實施例之示意圖。 FIG. 7 is a schematic diagram of a second embodiment of a fan according to the present invention.
以下係藉由特定的具體實施例說明本發明之實施方式,所屬技術領域中具有通常知識者可由本說明書所揭示之內容,輕易地瞭解本發明之其他優點與功效。 The following is a description of specific embodiments of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification.
請配合參考第1圖所示,本發明係一種風扇,本實施例為一種內轉子風扇,其具有一導流罩10、一驅動單元11、一殼體12與一葉片組13。 Please refer to FIG. 1 for reference. The present invention is a fan. This embodiment is an inner rotor fan, which has a shroud 10, a driving unit 11, a casing 12, and a blade group 13.
導流罩10係為一設置面,該設置面可為一牆面、一天花板、一輕鋼架或一平板固定面。導流罩10用於固定一導流結構100。導流結構100係位於導流罩10的中央位置,導流結構100具有一曲面,並與導流罩10形成一導流區域。該導流結構100的一端設有一輪轂130。 The shroud 10 is a setting surface, and the setting surface may be a wall surface, a ceiling, a light steel frame, or a flat plate fixing surface. The deflector cover 10 is used for fixing a deflector structure 100. The diversion structure 100 is located at the center of the diversion cover 10. The diversion structure 100 has a curved surface and forms a diversion area with the diversion cover 10. A hub 130 is disposed on one end of the flow guiding structure 100.
驅動單元11係被導流結構100與輪轂130所環繞。驅動單元11可為一薄型馬達。驅動單元11具有一轉軸110、一定子組111與一轉子組112。轉軸110係穿設於定子組111的中央,並固定於輪轂130上。轉子組112係環繞於定子組111,並與轉軸110之一 端相互樞接。 The driving unit 11 is surrounded by the flow guiding structure 100 and the hub 130. The driving unit 11 may be a thin motor. The driving unit 11 has a rotating shaft 110, a certain sub-group 111 and a rotor group 112. The rotating shaft 110 is disposed through the center of the stator group 111 and is fixed to the hub 130. The rotor group 112 surrounds the stator group 111 and is connected to one of the rotating shafts 110. The ends are pivoted to each other.
葉片組13具有複數個葉片131,或者葉片組13具有複數個葉片131與上述之輪轂130,相互成一體。葉片131係位於輪轂130的外周側。葉片131為非對稱厚度翼型或具有一翼型,該翼型為美國國家航空諮詢委員會(NACA)翼型或流線非對稱形狀,該翼型可以具有弧形4位數NACA翼型、5位數NACA翼型或6位數NACA翼型。於另一實施例,輪轂130與定子組111可視為一體,但不限制。輪轂130係設於驅動單元11,驅動單元11係驅動葉片組13,以使葉片組13轉動。 The blade group 13 has a plurality of blades 131, or the blade group 13 has a plurality of blades 131 and the above-mentioned hub 130, which are integrated with each other. The blades 131 are located on the outer peripheral side of the hub 130. The blade 131 is an asymmetric thickness airfoil or has an airfoil. The airfoil is a National Aviation Advisory Committee (NACA) airfoil or a streamline asymmetric shape. Count NACA airfoil or 6 digit NACA airfoil. In another embodiment, the hub 130 and the stator group 111 can be considered as one body, but it is not limited. The hub 130 is provided on the driving unit 11, and the driving unit 11 drives the blade group 13 to rotate the blade group 13.
於其他實施例中,該驅動單元11具有一軸心,該軸心為D型,該軸心係耦接該葉片組;或者該驅動單元11具有一外殼,該輪轂130係膠黏於該外殼;或者該驅動單元11具有一外殼,該輪轂130係以固定件或卡榫扣具結合該外殼;或者該葉片組13以環形逆牙結合該驅動單元11。 In other embodiments, the driving unit 11 has a shaft center, the shaft center is D-shaped, the shaft center is coupled to the blade group; or the driving unit 11 has a housing, and the hub 130 is glued to the housing ; Or the driving unit 11 has a housing, and the hub 130 is combined with the housing by a fixing member or a tenon fastener; or the blade set 13 is coupled with the driving unit 11 by a ring-shaped reverse tooth.
請配合參考第6圖所示,若葉片131為NACA 4位數字,葉片131具有一弦長SL(String Length,簡稱SL)。葉片131具有一前緣1310、一弧線1312與一後緣1311。弦長SL為前緣1310至後緣1311之直線距離。弧線1312為前緣1310至後緣1311之彎曲距離。如第6圖所示,於弦長SL之4/10的位置處,其為葉片131之最大厚度R,最大厚度R約為弦長SL之12%。該位置處,其為葉片13之最大彎度S,最大彎度S約為弦長SL之8%。殼體12係用以罩設葉片組13與驅動單元11。殼體12與導流罩10之間具有一第一風口120。第一風口120可為出風口或進風口。殼體12的一面具有一第二風口121。第二風口121可為進風口或出風口。舉例而言,若第一風口120為進風口,則第二風口121為出風口。反之,若第一風口120為出風口,則第二風口121為進風口。 Please refer to FIG. 6 for reference. If the blade 131 is a 4-digit NACA number, the blade 131 has a string length (SL). The blade 131 has a leading edge 1310, an arc 1312, and a trailing edge 1311. The chord length SL is a straight line distance from the leading edge 1310 to the trailing edge 1311. The arc 1312 is the bending distance from the leading edge 1310 to the trailing edge 1311. As shown in FIG. 6, at the position of 4/10 of the chord length SL, it is the maximum thickness R of the blade 131, and the maximum thickness R is about 12% of the chord length SL. At this position, it is the maximum camber S of the blade 13, and the maximum camber S is about 8% of the chord length SL. The casing 12 is used to cover the blade group 13 and the driving unit 11. There is a first air outlet 120 between the casing 12 and the shroud 10. The first air outlet 120 may be an air outlet or an air inlet. A mask of the casing 12 has a second air outlet 121. The second air outlet 121 may be an air inlet or an air outlet. For example, if the first air outlet 120 is an air inlet, the second air outlet 121 is an air outlet. Conversely, if the first air outlet 120 is an air outlet, the second air outlet 121 is an air inlet.
第一風口120具有一寬度,該寬度為一設定距離SH(set height之簡稱),葉片組13具有一設定直徑SD(set diameter之簡稱),該設定距離與該設定直徑比係介於第一預定比例與第二預定比例之 間。 The first air outlet 120 has a width, the width is a set distance SH (short for set height), and the blade group 13 has a set diameter SD (short for set diameter), and the ratio of the set distance to the set diameter is between the first Between the predetermined ratio and the second predetermined ratio between.
該設定距離與該設定直徑比係大於等於一第一預定比例,該設定距離與該設定直徑比係小於等於一第二預定比例。該第一預定比例為0.1,該第二預定比例為0.3。 The ratio between the set distance and the set diameter is greater than or equal to a first predetermined ratio, and the ratio between the set distance and the set diameter is less than or equal to a second predetermined ratio. The first predetermined ratio is 0.1, and the second predetermined ratio is 0.3.
舉例說說明,若設定距離為SH,設定直徑為SD。該第一預定比例≦SH/SD≦該第二預定比例。 For example, if the distance is set to SH and the diameter is set to SD. The first predetermined ratio ≦ SH / SD ≦ the second predetermined ratio.
本發明可設置於一設置面,如一牆面、一天花板或一輕鋼架。因本發明之葉片131為非對稱厚度翼型或NACA翼型,故於強紊流場或高靜壓下不會造成失速現象,而能夠推動足夠風量。 The invention can be arranged on a setting surface, such as a wall surface, a ceiling or a light steel frame. Because the blade 131 of the present invention has an asymmetric thickness airfoil or NACA airfoil, it will not cause stall phenomenon under strong turbulent flow field or high static pressure, and can drive sufficient air volume.
另外,本發明之葉片組13為多翼化扁薄型葉扇,故能降低心軸與扇葉之厚度。進而使得整體風扇扁薄化。 In addition, since the blade group 13 of the present invention is a multi-winged flat thin blade, the thickness of the mandrel and the blade can be reduced. This makes the overall fan thinner.
此外,本發明之葉片組13為一能夠翻轉之設計,藉以提供排氣或吸氣雙循環。當葉片組13未翻轉,其係提供正壓排氣循環,上述之第一風口120為進風口,上述之第二風口121為出風口。 In addition, the blade set 13 of the present invention has a design that can be reversed to provide a double cycle of exhaust or suction. When the blade group 13 is not turned over, it provides a positive pressure exhaust circulation. The above-mentioned first air outlet 120 is an air inlet, and the above-mentioned second air outlet 121 is an air outlet.
當葉片組13翻轉後,其係提供負壓吸氣循環,上述之第一風口120為出風口,上述之第二風口121為進風口。 When the blade group 13 is reversed, it provides a negative pressure suction cycle. The first air outlet 120 is an air outlet, and the second air inlet 121 is an air inlet.
請配合參考第2圖所示,其為進氣口寬度(mm)與風量(CMM)於多個轉速之曲線圖。於本實施例中,葉片組13為14吋。曲線A係表示葉片組13於1000轉速(rpm)。曲線B係表示葉片組13於900rpm。曲線C係表示葉片組13於600rpm。曲線D係表示葉片組13於300rpm。如第2圖所示,當進氣口寬度(mm)達到60mm時,位於各轉速之葉片組13係達到較佳的風量。 Please refer to Figure 2, which is a graph of the width of the air inlet (mm) and the air volume (CMM) at multiple speeds. In this embodiment, the blade group 13 is 14 inches. The curve A indicates the blade group 13 at 1000 revolutions (rpm). Curve B indicates the blade group 13 at 900 rpm. The curve C indicates the blade group 13 at 600 rpm. The curve D indicates the blade group 13 at 300 rpm. As shown in FIG. 2, when the width (mm) of the air inlet reaches 60 mm, the blade group 13 at each rotation speed reaches a better air volume.
請配合參考第3圖所示,其為進氣口寬度(mm)與風量(CMM)於多個轉速之曲線圖,該進氣口寬度(mm)為上述之設定距離SH(set height之簡稱)。於本實施例中,葉片組13為20吋。曲線E係表示葉片組13於300rpm。曲線F係表示葉片組13於600rpm。曲線G係表示葉片組13於1000rpm。曲線H係表示葉片組13於1200rpm。曲線I係表示葉片組13於1500rpm。曲線J係表示葉片組13於1800rpm。如第3圖所示,當進氣口寬度(mm)達到100mm時,位於各轉速之葉片組13係達到較佳的風量。 Please refer to Figure 3 for reference, which is a graph of the width of the air inlet (mm) and the air volume (CMM) at multiple speeds. The width of the air inlet (mm) is the above-mentioned set distance SH (set height for short) ). In this embodiment, the blade group 13 is 20 inches. The curve E indicates the blade group 13 at 300 rpm. Curve F indicates the blade group 13 at 600 rpm. The curve G indicates the blade group 13 at 1000 rpm. The curve H indicates the blade group 13 at 1200 rpm. The curve I indicates the blade group 13 at 1500 rpm. The curve J indicates the blade group 13 at 1800 rpm. As shown in FIG. 3, when the width (mm) of the air inlet reaches 100 mm, the blade group 13 at each rotation speed achieves a better air volume.
請配合參考第4圖所示,其係表示進氣口寬度(mm)與衰減幅度之曲線圖。曲線L係表示葉片組13於900rpm。曲線H係表示葉片組13於1000rpm。曲線M係表示葉片組13於600rpm。曲線N係表示葉片組13於300rpm。如第4圖所示,當進氣口寬度(mm)達到74mm時,位於各轉速之葉片組13之衰減幅度係達到90%。而當當進氣口寬度(mm)達到100,位於各轉速之葉片組13之衰減幅度係達到95%。 Please refer to Figure 4, which is a graph showing the width of the air inlet (mm) and the attenuation range. The curve L indicates the blade group 13 at 900 rpm. The curve H indicates the blade group 13 at 1000 rpm. The curve M indicates the blade group 13 at 600 rpm. Curve N indicates the blade group 13 at 300 rpm. As shown in Figure 4, when the width of the air inlet (mm) reaches 74mm, the attenuation range of the blade group 13 at each speed reaches 90%. And when the width of the air inlet (mm) reaches 100, the attenuation range of the blade group 13 at each speed reaches 95%.
請配合參考第5圖所示,其為一靜壓(mmAq)與風量(CMM)圖。曲線Q係表示現有之風扇,其係用於現有的天花板循環扇。曲線P係表示本發明之葉片組13。如第5圖所示,曲線Q係無法抵抗1mmAq以上壓力。曲線P係表示本發明之葉片組13可抵抗1mmAq以上壓力。 Please refer to Figure 5, which is a graph of static pressure (mmAq) and air volume (CMM). The curve Q represents an existing fan, which is used for an existing ceiling circulation fan. The curve P represents the blade group 13 of the present invention. As shown in Fig. 5, the curve Q is unable to resist a pressure of 1 mmAq or more. The curve P indicates that the blade group 13 of the present invention can resist a pressure of 1 mmAq or more.
請配合參考第7圖所示,本發明係一種風扇之第二實施例,其具有一導流罩20、一驅動單元21、一殼體22、一導流結構200與一葉片組23。 Please refer to FIG. 7 for reference. The present invention is a second embodiment of a fan. The fan has a shroud 20, a driving unit 21, a housing 22, a flow guiding structure 200, and a blade group 23.
導流罩20係為一設置面。導流結構200係固定於導流罩20。驅動單元21係固定於導流罩20。葉片組23係固定於驅動單元21之外轉子上,其為一種外轉子風扇。 The shroud 20 is a setting surface. The guide structure 200 is fixed to the guide hood 20. The driving unit 21 is fixed to the shroud 20. The blade group 23 is fixed on the outer rotor of the driving unit 21 and is an outer rotor fan.
於本實施例中,葉片組23係以固定件固定於驅動單元21之外轉子的端部。 In this embodiment, the blade group 23 is fixed to the end of the rotor outside the driving unit 21 with a fixing member.
殼體22罩設葉片組23與驅動單元21。殼體22與導流罩20之間具有一第一風口(圖中未示)。殼體22的一面具有一孔板220,孔板220具有至少一第二風口221。 The casing 22 covers the blade group 23 and the driving unit 21. A first tuyere (not shown) is provided between the casing 22 and the shroud 20. A mask of the casing 22 has a perforated plate 220, and the perforated plate 220 has at least one second air outlet 221.
於本實施例中所欲達到之功效如上述之第2圖至第5圖,故不於此多做贅述,特先陳明。 The effects to be achieved in this embodiment are as shown in Figures 2 to 5 above, so they are not described in detail here, and they will be described first.
綜合上述,本發明之葉片組係具有翻轉之設計,而能實現排氣或吸氣雙循環之效果。本發明於強紊流場或高靜壓下不會造成失速現象,而能夠推動足夠風量。 To sum up, the blade system of the present invention has a flip design, and can achieve the effect of exhaust or suction double circulation. The invention does not cause a stall phenomenon under a strong turbulent flow field or a high static pressure, but can promote a sufficient air volume.
以上所述之具體實施例,僅係用於例釋本發明之特點及功效,而非用於限定本發明之可實施範疇,於未脫離本發明上揭之 精神與技術範疇下,任何運用本發明所揭示內容而完成之等效改變及修飾,均仍應為下述之申請專利範圍所涵蓋。 The specific embodiments described above are only used to illustrate the features and effects of the present invention, rather than to limit the implementable scope of the present invention. Under the spirit and technical scope, any equivalent changes and modifications made by using the content disclosed in the present invention should still be covered by the scope of patent application described below.
Claims (13)
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TW106136220A TWI648473B (en) | 2017-10-20 | 2017-10-20 | fan |
CN201711114180.6A CN109695583B (en) | 2017-10-20 | 2017-11-13 | Fan with cooling device |
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US11245293B2 (en) | 2019-08-14 | 2022-02-08 | Industrial Technology Research Institute | Motor stator with dovetail or rectangular mount structure and stator teeth airgap width ratio |
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CN102852832A (en) * | 2011-06-30 | 2013-01-02 | 日本电产株式会社 | Fan |
CN105318516A (en) * | 2015-12-10 | 2016-02-10 | 南华大学 | Ceiling type ventilation equipment based on Coanda effect |
CN106762728A (en) * | 2013-02-20 | 2017-05-31 | 夏普株式会社 | Pressure fan |
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CN103758790B (en) * | 2008-05-07 | 2017-01-04 | 台达电子工业股份有限公司 | Fan and flow-guiding structure thereof |
CN103075371B (en) * | 2008-05-07 | 2015-05-13 | 台达电子工业股份有限公司 | Fan |
CN101576094A (en) * | 2008-05-07 | 2009-11-11 | 台达电子工业股份有限公司 | Fan and flow-guided structure thereof |
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CN101832277B (en) * | 2009-03-12 | 2013-10-23 | 台达电子工业股份有限公司 | Fan and guide structure thereof |
CN201401365Y (en) * | 2009-03-23 | 2010-02-10 | 台达电子工业股份有限公司 | Fan and fan impeller thereof |
CN102465894B (en) * | 2010-11-09 | 2014-07-09 | 建准电机工业股份有限公司 | Fan |
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CN102852832A (en) * | 2011-06-30 | 2013-01-02 | 日本电产株式会社 | Fan |
CN106762728A (en) * | 2013-02-20 | 2017-05-31 | 夏普株式会社 | Pressure fan |
CN105318516A (en) * | 2015-12-10 | 2016-02-10 | 南华大学 | Ceiling type ventilation equipment based on Coanda effect |
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US11245293B2 (en) | 2019-08-14 | 2022-02-08 | Industrial Technology Research Institute | Motor stator with dovetail or rectangular mount structure and stator teeth airgap width ratio |
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