TWI477698B - Fan structure - Google Patents
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- TWI477698B TWI477698B TW101120362A TW101120362A TWI477698B TW I477698 B TWI477698 B TW I477698B TW 101120362 A TW101120362 A TW 101120362A TW 101120362 A TW101120362 A TW 101120362A TW I477698 B TWI477698 B TW I477698B
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Description
本發明為有關於一種風扇結構，特別是一種以保護蓋結合於固定軸桿的風扇結構，其可以避免該風扇結構被迫壓而損壞。
The present invention relates to a fan structure, and more particularly to a fan structure in which a protective cover is coupled to a fixed shaft, which can prevent the fan structure from being forced to be damaged.
目前筆記型電腦或平板電腦等電子商品之設計趨勢以輕薄為主流，但於上述電子商品中的電子元件仍需裝設風扇協助散熱，以避免電子元件因高熱而損壞，請參閱第5圖，一種風扇結構10被裝設於上述電子商品中(圖未繪出)，該風扇結構10包含一基座11、一固定軸桿12、一軸承13及一扇輪14，該固定軸桿12係固定於該基座11，該軸承13係結合於該固定軸桿12，該扇輪14係結合於該軸承13，當該扇輪14被驅動旋轉時，用以潤滑該軸承13的潤滑油，會因該扇輪14旋轉而飛濺，導致潤滑油流失，因而造成該軸承13與該固定軸桿12磨損及產生異音，此外當該風扇結構10被裝設於電子商品中時，若使用者不當壓迫電子商品的殼體或鍵盤，或者因電子商品的殼體或鍵盤變形，會造成電子商品的殼體或鍵盤壓迫該風扇結構10的該扇輪14，而使得該扇輪14無法正常轉動散熱。
At present, the design trend of electronic products such as notebook computers or tablet computers is mainly thin and light, but the electronic components in the above electronic products still need to be equipped with a fan to help dissipate heat, so as to avoid damage of electronic components due to high heat, please refer to Figure 5, A fan structure 10 is installed in the electronic product (not shown). The fan structure 10 includes a base 11, a fixed shaft 12, a bearing 13 and a fan wheel 14. The fixed shaft 12 is Fixed to the base 11 , the bearing 13 is coupled to the fixed shaft 12 , the fan wheel 14 is coupled to the bearing 13 , used to lubricate the lubricating oil of the bearing 13 when the fan wheel 14 is driven to rotate, When the fan wheel 14 rotates and splashes, the lubricating oil is lost, thereby causing the bearing 13 and the fixed shaft 12 to wear and generate abnormal sound, and when the fan structure 10 is installed in an electronic product, if the user Improper compression of the housing or keyboard of the electronic article, or deformation of the housing or keyboard of the electronic article, may cause the housing or keyboard of the electronic article to press the fan wheel 14 of the fan structure 10, so that the fan wheel 14 cannot rotate normally. Cooling.
本發明為克服風扇結構中用以潤滑軸承的潤滑油飛濺流失及避免被電子商品的殼體(鍵盤或面板)迫壓，而造成風扇結構損壞無法正常轉動的問題。
本發明的主要目的在於提供一種風扇結構，其包含一套筒、一固定軸桿、一軸承、一扇輪以及一保護蓋，該套筒具有一底部、一筒身及一容置空間，該固定軸桿設置於該容置空間，該固定軸桿具有一第一端部、一第二端部及一中間部，該中間部位於該第一端部及該第二端部之間，該第一端部結合於該套筒的該底部，且該第二端部凸出於該筒身，該軸承設置於該套筒之該容置空間，該軸承具有一軸孔，該軸承的該軸孔結合於該固定軸桿的該中間部，且該固定軸桿的該第二端部凸出於該軸承，該扇輪具有一輪轂及一形成於該輪轂的穿孔，該輪轂結合於該軸承，該固定軸桿的該第二端部通過該穿孔且凸出於該輪轂，該保護蓋結合於該固定軸桿的該第二端部，且該保護蓋與該輪轂之間具有一間距，當該風扇結構的該扇輪被驅動旋轉時，該保護蓋可阻擋用以潤滑該軸承的潤滑油，因該扇輪旋轉而造成飛濺及流失，並且當該風扇結構被裝設於筆記型電腦或平板電腦等電子商品時，由於該保護蓋結合於該固定軸桿的該第二端部，且該保護蓋罩蓋於該輪轂上方，且該保護蓋不會對該輪轂造成轉動干涉，該固定軸桿與該保護蓋可避免電子商品的殼體或鍵盤或面板迫壓該扇輪，而造成該風扇結構損壞無法正常轉動散熱。
The invention overcomes the problem of splashing of lubricating oil used to lubricate the bearing in the fan structure and avoiding pressure on the casing (keyboard or panel) of the electronic product, thereby causing the structure of the fan to be unable to rotate normally.
The main purpose of the present invention is to provide a fan structure including a sleeve, a fixed shaft, a bearing, a fan wheel, and a protective cover. The sleeve has a bottom, a barrel and an accommodating space. The fixed shaft is disposed in the accommodating space, the fixed shaft has a first end portion, a second end portion and an intermediate portion, the intermediate portion is located between the first end portion and the second end portion, a first end portion is coupled to the bottom portion of the sleeve, and the second end portion protrudes from the barrel body, the bearing is disposed in the accommodating space of the sleeve, the bearing has a shaft hole, the shaft of the bearing a hole is coupled to the intermediate portion of the fixed shaft, and the second end of the fixed shaft protrudes from the bearing, the fan wheel has a hub and a through hole formed in the hub, the hub is coupled to the bearing The second end of the fixed shaft passes through the through hole and protrudes from the hub, the protective cover is coupled to the second end of the fixed shaft, and a gap is formed between the protective cover and the hub. When the fan wheel of the fan structure is driven to rotate, the protective cover can be blocked Sliding the lubricating oil of the bearing, causing splashing and escaping due to the rotation of the fan wheel, and when the fan structure is mounted on an electronic product such as a notebook computer or a tablet computer, the protective cover is coupled to the fixed shaft a second end portion, and the protective cover is disposed above the hub, and the protective cover does not cause rotational interference to the hub, and the fixed shaft and the protective cover can prevent the housing or the keyboard or the panel of the electronic product from being pressed The fan wheel causes damage to the structure of the fan and cannot be properly rotated to dissipate heat.
請參閱第1圖，其為本發明的第一實施例，一種風扇結構100其包含一套筒110、一固定軸桿120、一軸承130、一扇輪140、一保護蓋150、一定子160、一電路板170及一基座180，在本實施例中，該套筒110設置於該基座180，該定子160及該電路板170結合於該套筒110用以驅動該扇輪140轉動。
請參閱第1圖，該套筒110具有一底部111、一筒身112及一容置空間113，該筒身112連接該底部111，該容置空間113由該筒身112圍繞而形成，該固定軸桿120設置於該容置空間113，該固定軸桿120具有一第一端部121、一第二端部122及一中間部123，該中間部123位於該第一端部121及該第二端部122之間，該固定軸桿120的該第一端部121結合於該套筒110的該底部111，該套筒110的該底部111包覆該固定軸桿120的該第一端部121，且該第二端部122凸出於該筒身112。
請參閱第1圖，該軸承130具有一軸孔131，該軸承130的該軸孔131結合於該固定軸桿120的該中間部123，該軸承130設置於該套筒110之該容置空間113，且該固定軸桿120的該第二端部122凸出於該軸承130，該扇輪140具有一輪轂141、一穿孔142及複數個結合於該輪轂141的扇葉143，該穿孔142形成於該輪轂141，該扇輪140的該輪轂141與該軸承130結合，在本實施例中，該輪轂141具有一結合部141a，該輪轂141的該結合部141a與該軸承130結合，且該結合部141a位於該容置空間113，該輪轂141罩蓋該套筒110、該軸承130及該定子160，該固定軸桿120的該第二端部122通過該穿孔142且凸出於該輪轂141，該穿孔142的內徑大於該固定軸桿120的外徑，因此當該扇輪140轉動時，該固定軸桿120並不會對該輪轂141造成干涉。
請參閱第1及2圖，該固定軸桿120的該第二端部122凸出於該輪轂141，該保護蓋150結合於該固定軸桿120的該第二端部122，且該保護蓋150與該輪轂141之間具有一間距D，因此該保護蓋150並不會對該輪轂141造成轉動干涉，因此當該風扇結構100的該扇輪140被驅動旋轉時，該保護蓋150可阻擋用以潤滑該軸承130的潤滑油，因該扇輪140旋轉而造成飛濺及流失，並且當該風扇結構100被裝設於筆記型電腦或平板電腦等電子商品時(圖未繪出)，由於該保護蓋150結合於該固定軸桿120的該第二端部122，且該保護蓋150罩蓋於該扇輪140的該輪轂141上方，因此可以避免不當外力觸壓該扇輪140而造成該風扇結構100損壞。
請參閱第1及2圖，在本實施例中，該輪轂141具有一頂面141b、一凹槽141c、一擋牆141d及一底面141e，該軸承130被限位於該輪轂141的該底面141e下方，該凹槽141c凹設於該頂面141b，該保護蓋150具一環牆151，該環牆151容置於該凹槽141c，該環牆151與該凹槽141c之間形成一防塵通道P1，當該扇輪140被該定子160驅動旋轉時，該防塵通道P1可防止灰塵進入該扇輪140的該穿孔142，而造成該扇輪140磨損或損壞，該擋牆141d設置於該凹槽141c，該擋牆141d位於該固定軸桿120與該環牆151之間，且該擋牆141d與該保護蓋150之間形成有一擋油通道P2，當該扇輪140轉動時，該擋油通道P2可防止用以潤滑該軸承130的潤滑油由該扇輪140的該穿孔142被甩出，且藉由該擋牆141d可防止潤滑油溢流出該擋油通道P2，在本實施例中，該擋牆141d具有一高度H1，該凹槽141c具有一深度H2，較佳地，該擋牆141d的該高度H1不小於該凹槽141c的該深度H2，此外，該擋油通道P1連通該防塵通道P2，當該扇輪140轉動時，藉由該擋油通道P1與該防塵通道P2中的壓差，而使潤滑油可被局限於該軸承130，此外在該凹槽141c之一第一表面141f及該擋牆141d之一第二表面141g，可形成有一撥液層，其可避免潤滑油附著於該凹槽141c的該第一表面141f及該擋牆141d之該第二表面141g，較佳地，在該保護蓋150的一內表面153亦可形成有一撥液層避免潤滑油附著於該保護蓋150的該內表面153。
請參閱第3圖，其為本發明的第二實施例，一種風扇結構100其包含該套筒110、該固定軸桿120、該軸承130、該扇輪140、該保護蓋150、該定子160、該電路板170及該基座180，第二實施例與第一實施例不同之處在於該穿孔142具有一環壁142a，該環壁142a為一傾斜環壁，且該環壁142朝向該固定軸桿120的該第二端部122，在本實施例中，該保護蓋150具有一結合座152，該固定軸桿120的該第二端部122結合於該結合座152，該結合座152具有一傾斜面152a，且該傾斜面152a朝向該軸承130，當該扇輪140旋轉作動時，該穿孔142的該環壁142a及該結合座152的該傾斜面152a，可引導因扇輪旋轉而飛濺的潤滑油回流至該軸承130。
請參閱第4圖，其為本發明的第三實施例，一種風扇結構100其包含該套筒110、該固定軸桿120、該軸承130、該扇輪140、該保護蓋150、該定子160、該電路板170及該基座180，第三實施例與第一實施例不同之處在於該風扇結構100其另包含一限位環190，該固定軸桿120具有一限位槽124，該限位環190結合於該限位槽124，且該限位環190被限位於該輪轂141與該軸承130之間。
請參閱第1、2及3圖，本發明藉由該固定軸桿120的該第二端部122凸出於該輪轂141，且該保護蓋150結合於該固定軸桿120的該第二端部122，因此當該扇輪140作動旋轉時，該保護蓋150可保護該扇輪140的該輪轂141，以避免不當外力觸壓該扇輪140而造成該風扇結構100損壞。
本發明的保護範圍當視後附的申請專利範圍所界定者為準，任何熟知此項技藝者，在不脫離本發明的精神和範圍內所作的任何變化與修改，均屬於本發明的保護範圍。
Please refer to FIG. 1 , which is a first embodiment of the present invention. A fan structure 100 includes a sleeve 110 , a fixed shaft 120 , a bearing 130 , a fan wheel 140 , a protective cover 150 , and a stator 160 . In the present embodiment, the sleeve 110 is disposed on the base 180. The stator 160 and the circuit board 170 are coupled to the sleeve 110 for driving the fan wheel 140 to rotate. .
Referring to FIG. 1 , the sleeve 110 has a bottom portion 111 , a barrel body 112 , and an accommodating space 113 . The barrel body 112 is connected to the bottom portion 111 . The accommodating space 113 is formed by the barrel body 112 . The fixed shaft 120 is disposed in the accommodating space 113. The fixed shaft 120 has a first end portion 121, a second end portion 122 and an intermediate portion 123. The intermediate portion 123 is located at the first end portion 121 and the The first end portion 121 of the fixed shaft 120 is coupled to the bottom portion 111 of the sleeve 110. The bottom portion 111 of the sleeve 110 covers the first portion of the fixed shaft 120. The end portion 121 and the second end portion 122 protrude from the barrel 112.
Referring to FIG. 1 , the bearing 130 has a shaft hole 131 . The shaft hole 131 of the bearing 130 is coupled to the intermediate portion 123 of the fixed shaft 120 . The bearing 130 is disposed in the receiving space 113 of the sleeve 110 . The second end portion 122 of the fixed shaft 120 protrudes from the bearing 130. The fan wheel 140 has a hub 141, a through hole 142, and a plurality of blades 143 coupled to the hub 141. The through hole 142 is formed. In the hub 141, the hub 141 of the fan wheel 140 is coupled to the bearing 130. In the embodiment, the hub 141 has a joint portion 141a, and the joint portion 141a of the hub 141 is coupled with the bearing 130, and the joint The joint portion 141a is located in the accommodating space 113. The hub 141 covers the sleeve 110, the bearing 130 and the stator 160. The second end portion 122 of the fixed shaft 120 passes through the through hole 142 and protrudes from the hub. 141, the inner diameter of the through hole 142 is larger than the outer diameter of the fixed shaft 120, so the fixed shaft 120 does not interfere with the hub 141 when the fan wheel 140 rotates.
Referring to FIGS. 1 and 2 , the second end portion 122 of the fixed shaft 120 protrudes from the hub 141 , and the protective cover 150 is coupled to the second end portion 122 of the fixed shaft 120 , and the protective cover is There is a distance D between the 150 and the hub 141, so the protective cover 150 does not cause rotational interference to the hub 141, so when the fan wheel 140 of the fan structure 100 is driven to rotate, the protective cover 150 can block The lubricating oil used to lubricate the bearing 130 is splashed and lost due to the rotation of the fan wheel 140, and when the fan structure 100 is installed in an electronic product such as a notebook computer or a tablet computer (not shown), The protective cover 150 is coupled to the second end portion 122 of the fixed shaft 120, and the protective cover 150 covers the hub 141 of the fan wheel 140, thereby preventing improper external force from contacting the fan wheel 140. The fan structure 100 is damaged.
Referring to FIGS. 1 and 2, in the embodiment, the hub 141 has a top surface 141b, a recess 141c, a retaining wall 141d and a bottom surface 141e. The bearing 130 is limited to the bottom surface 141e of the hub 141. The recess 141c is recessed on the top surface 141b. The protective cover 150 has a ring wall 151. The ring wall 151 is received in the recess 141c, and a dustproof passage is formed between the ring wall 151 and the recess 141c. P1, when the fan wheel 140 is driven to rotate by the stator 160, the dustproof passage P1 prevents dust from entering the through hole 142 of the fan wheel 140, causing the fan wheel 140 to be worn or damaged, and the retaining wall 141d is disposed in the concave portion. a groove 141c, the retaining wall 141d is located between the fixed shaft 120 and the ring wall 151, and an oil passage P2 is formed between the retaining wall 141d and the protective cover 150. When the fan wheel 140 rotates, the block The oil passage P2 prevents the lubricating oil for lubricating the bearing 130 from being pulled out by the through hole 142 of the fan wheel 140, and the retaining wall 141d prevents the lubricating oil from overflowing the oil passage P2, in this embodiment. The retaining wall 141d has a height H1, and the recess 141c has a depth H2. Preferably, the retaining wall 141d has the height. H1 is not less than the depth H2 of the groove 141c. Further, the oil passage P1 communicates with the dust passage P2. When the fan wheel 140 rotates, the pressure difference between the oil passage P1 and the dust passage P2 is The lubricating oil can be limited to the bearing 130. Further, a first liquid surface 141f of the recess 141c and a second surface 141g of the retaining wall 141d can be formed with a liquid-repellent layer for preventing the lubricating oil from adhering to the lubricating oil. The first surface 141f of the recess 141c and the second surface 141g of the retaining wall 141d are preferably formed with a liquid-repellent layer on an inner surface 153 of the protective cover 150 to prevent the lubricating oil from adhering to the protection. The inner surface 153 of the cover 150.
Referring to FIG. 3 , which is a second embodiment of the present invention, a fan structure 100 includes the sleeve 110 , the fixed shaft 120 , the bearing 130 , the fan wheel 140 , the protective cover 150 , and the stator 160 . The circuit board 170 and the base 180 are different from the first embodiment in that the through hole 142 has a ring wall 142a, and the ring wall 142a is a slanting ring wall, and the ring wall 142 faces the fixing. The second end portion 122 of the shaft 120 has a coupling seat 152. The second end portion 122 of the fixing shaft 120 is coupled to the coupling seat 152. The coupling seat 152 is coupled to the coupling seat 152. The inclined surface 152a has an inclined surface 152a, and the inclined surface 152a faces the bearing 130. When the sliding wheel 140 rotates, the annular wall 142a of the through hole 142 and the inclined surface 152a of the coupling seat 152 can guide the rotation of the fan wheel. The splashed lubricating oil is returned to the bearing 130.
Referring to FIG. 4 , which is a third embodiment of the present invention, a fan structure 100 includes the sleeve 110 , the fixed shaft 120 , the bearing 130 , the fan wheel 140 , the protective cover 150 , and the stator 160 . The circuit board 170 and the pedestal 180 are different from the first embodiment in that the fan structure 100 further includes a limiting ring 190. The fixed shaft 120 has a limiting slot 124. The limiting ring 190 is coupled to the limiting slot 124 , and the limiting ring 190 is limited between the hub 141 and the bearing 130 .
Referring to Figures 1, 2 and 3, the second end portion 122 of the fixed shaft 120 protrudes from the hub 141, and the protective cover 150 is coupled to the second end of the fixed shaft 120. The portion 122, therefore, when the fan wheel 140 is rotated, the protective cover 150 can protect the hub 141 of the fan wheel 140 to prevent the external force from contacting the fan wheel 140 to damage the fan structure 100.
The scope of the present invention is defined by the scope of the appended claims, and any changes and modifications made by those skilled in the art without departing from the spirit and scope of the invention are within the scope of the present invention. .
10．．．風扇結構10. . . Fan structure
11．．．風扇11. . . fan
20．．．殼體20. . . case
100．．．風扇結構100. . . Fan structure
110．．．套筒110. . . Sleeve
111．．．底部111. . . bottom
112．．．筒身112. . . Barrel
113．．．容置空間113. . . Housing space
120．．．固定軸桿120. . . Fixed shaft
121．．．第一端部121. . . First end
122．．．第二端部122. . . Second end
123．．．中間部123. . . Middle part
124．．．限位槽124. . . Limit slot
130．．．軸承130. . . Bearing
131．．．軸孔131. . . Shaft hole
140．．．扇輪140. . . Fan wheel
141．．．輪轂141. . . Wheel hub
141a．．．結合部141a. . . combination
141b．．．頂面141b. . . Top surface
141c．．．凹槽141c. . . Groove
141d．．．擋牆141d. . . Retaining wall
141e．．．底面141e. . . Bottom
141f．．．第一表面141f. . . First surface
141g．．．第二表面141g. . . Second surface
142．．．穿孔142. . . perforation
142a．．．環壁142a. . . Ring wall
143．．．扇葉143. . . Fan blade
150．．．保護蓋150. . . protection cap
151．．．環牆151. . . Ring wall
152．．．結合座152. . . Joint seat
152a．．．傾斜面152a. . . Inclined surface
153．．．內表面153. . . The inner surface
160．．．定子160. . . stator
170．．．電路板170. . . Circuit board
180．．．基座180. . . Pedestal
190．．．限位環190. . . Limit ring
D．．．間距D. . . spacing
P1．．．防塵通道P1. . . Dustproof passage
P2．．．擋油通道P2. . . Oil passage
H1．．．高度H1. . . height
H2．．．深度H2. . . depth
第1圖：依據本發明的第一實施例，一種風扇結構的剖視圖。
第2圖：依據本發明的第一實施例，該風扇結構的局部剖視圖。
第3圖：依據本發明的第二實施例，一種風扇結構的剖視圖。
第4圖：依據本發明的第三實施例，一種風扇結構的剖視圖。
第5圖：習知風扇結構裝設於電子商品的剖視圖。
Figure 1 is a cross-sectional view showing a structure of a fan in accordance with a first embodiment of the present invention.
Figure 2: A partial cross-sectional view of the fan structure in accordance with a first embodiment of the present invention.
Figure 3 is a cross-sectional view showing a structure of a fan in accordance with a second embodiment of the present invention.
Figure 4 is a cross-sectional view showing a structure of a fan in accordance with a third embodiment of the present invention.
Figure 5: A cross-sectional view of a conventional fan structure mounted on an electronic article.
100．．．風扇結構100. . . Fan structure
110．．．套筒110. . . Sleeve
111．．．底部111. . . bottom
112．．．筒身112. . . Barrel
113．．．容置空間113. . . Housing space
120．．．固定軸桿120. . . Fixed shaft
121．．．第一端部121. . . First end
122．．．第二端部122. . . Second end
123．．．中間部123. . . Middle part
130．．．軸承130. . . Bearing
131．．．軸孔131. . . Shaft hole
140．．．扇輪140. . . Fan wheel
141．．．輪轂141. . . Wheel hub
141a．．．結合部141a. . . combination
141b．．．頂面141b. . . Top surface
141c．．．凹槽141c. . . Groove
141d．．．擋牆141d. . . Retaining wall
141e．．．底面141e. . . Bottom
142．．．穿孔142. . . perforation
143．．．扇葉143. . . Fan blade
150．．．保護蓋150. . . protection cap
151．．．環牆151. . . Ring wall
160．．．定子160. . . stator
170．．．電路板170. . . Circuit board
180．．．基座180. . . Pedestal
Claims (10)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW101120362A TWI477698B (en) | 2012-06-06 | 2012-06-06 | Fan structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW101120362A TWI477698B (en) | 2012-06-06 | 2012-06-06 | Fan structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| TW201350684A TW201350684A (en) | 2013-12-16 |
| TWI477698B true TWI477698B (en) | 2015-03-21 |
Family
ID=50157910
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| TW101120362A TWI477698B (en) | 2012-06-06 | 2012-06-06 | Fan structure |
Country Status (1)
| Country | Link |
|---|---|
| TW (1) | TWI477698B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4822021B1 (en) * | 1969-01-30 | 1973-07-03 | ||
| JP2012013022A (en) * | 2010-07-01 | 2012-01-19 | Nippon Densan Corp | Blower fan |
| US8181348B2 (en) * | 2004-04-01 | 2012-05-22 | Seagate Technology Llc | Shielding fluid reservoirs of fluid dynamic bearing motors |
-
2012
- 2012-06-06 TW TW101120362A patent/TWI477698B/en not_active IP Right Cessation
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4822021B1 (en) * | 1969-01-30 | 1973-07-03 | ||
| US8181348B2 (en) * | 2004-04-01 | 2012-05-22 | Seagate Technology Llc | Shielding fluid reservoirs of fluid dynamic bearing motors |
| JP2012013022A (en) * | 2010-07-01 | 2012-01-19 | Nippon Densan Corp | Blower fan |
Also Published As
| Publication number | Publication date |
|---|---|
| TW201350684A (en) | 2013-12-16 |
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