TWI675531B - fan - Google Patents
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- TWI675531B TWI675531B TW107127806A TW107127806A TWI675531B TW I675531 B TWI675531 B TW I675531B TW 107127806 A TW107127806 A TW 107127806A TW 107127806 A TW107127806 A TW 107127806A TW I675531 B TWI675531 B TW I675531B
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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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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Control Of Positive-Displacement Air Blowers (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
風扇係包括：葉輪；電動機部，旋轉葉輪；以及擺頭機構，進行變動電動機部之方向之擺頭動作；擺頭機構係包括：定子(6)；馬達軸(8)，被設置於定子(6)之內側；以及步進馬達(3)，具有在與馬達軸(8)之間設置間隙，以被***馬達軸(8)之轉子(7)；步進馬達(3)係馬達軸(8)藉因為自定子(6)中心偏移所產生之不平衡磁吸力，一邊往與轉子(7)被拉伸之方向同側被拉伸，一邊以轉子(7)旋轉之速度運轉。 The fan system includes: an impeller; a motor unit, a rotating impeller; and a swinging mechanism for swinging the head in a direction that changes the direction of the motor; the swinging mechanism includes: a stator (6); a motor shaft (8); 6); and a stepping motor (3) having a rotor (7) provided with a gap between the motor shaft (8) and the motor shaft (8); the stepping motor (3) is a motor shaft ( 8) By the unbalanced magnetic attraction force caused by the offset from the center of the stator (6), while being stretched to the same side as the direction in which the rotor (7) is stretched, it is running at the speed at which the rotor (7) rotates.
Description
本發明係關於一種搭載有使用步進馬達之擺頭機構之風扇。 The present invention relates to a fan equipped with a swing head mechanism using a stepping motor.
步進馬達係藉輸入之脈波，自由變動旋轉速度及旋轉角度，所以，在改變零件之角度調整及旋轉速度時很有用，在各個領域係使用於零件旋轉。 The stepping motor can freely change the rotation speed and rotation angle by the input pulse wave. Therefore, it is very useful to change the angle adjustment and rotation speed of the part. It is used in various fields to rotate the part.
近年來，在風扇之擺頭動作係變得使用步進馬達。風扇係包括旋轉被安裝於電動機的軸體上之葉輪，以產生風之送風部。當藉送風機以送風時，在欲送風到左右之較廣範圍時，係使其左右擺頭，當以攪拌室內上下空氣為目的，欲送風到上下較廣之範圍時，係使其上下擺頭。 In recent years, stepping motors have been used in the swinging motion of fans. The fan system includes an air-sending part that rotates an impeller mounted on a shaft body of a motor to generate wind. When the fan is used to supply air, it is required to swing the head to the left and right when it wants to send air to a wide range. When it is intended to stir the air in the room, it is required to swing the head to the top .
在專利文獻1中，開示有一種包括左右擺頭用之步進馬達與上下擺頭用之步進馬達，實現左右擺頭與上下擺頭之角度調整之風扇。 Patent Document 1 discloses a fan including a stepping motor for left and right swinging heads and a stepping motor for up and down swinging heads to realize angle adjustment of the left and right swinging heads and the up and down swinging heads.
[專利文獻] [Patent Literature]
〔專利文獻1〕日本專利第5786440號公報 [Patent Document 1] Japanese Patent No. 5786440
步進馬達的轉子，係因為自重之不平衡，旋轉中心與重心係偏移，所以，旋轉時產生之離心力，成為拉伸轉子往徑向之力量。因此，步進馬 達的轉子，通常係沿著包括在馬達內部之馬達軸的外周以旋轉。離心力係產生在自旋轉中心往重心之方向上，所以，離心力之方向係配合轉子之旋轉角度以改變。 The rotor of a stepping motor is due to the unbalance of its own weight, and the center of rotation is offset from the center of gravity. Therefore, the centrifugal force generated during rotation becomes the force that stretches the rotor in the radial direction. So stepping horse The rotor is usually driven along the outer periphery of the motor shaft included in the motor. The centrifugal force is generated in the direction from the center of rotation to the center of gravity. Therefore, the direction of the centrifugal force is changed in accordance with the rotation angle of the rotor.
但是，當馬達軸係自定子之中心偏移時，為了旋轉轉子而定子所產生之磁吸力變得不平衡，轉子被往特定方向拉引。當不平衡磁吸力比離心力強之時，在作用於旋轉之轉子上之離心力與不平衡磁吸力係朝向相反方向時，轉子被拉伸。此時，轉子係與馬達軸或稱做定子之內部零件相衝撞，所以，每旋轉一圈則產生一次衝撞聲。轉子是否衝撞到馬達軸，是否衝撞到定子，係依存於轉子與馬達軸之間隙，與轉子與定子之間隙。 However, when the motor shaft is offset from the center of the stator, the magnetic attraction generated by the stator becomes unbalanced in order to rotate the rotor, and the rotor is pulled in a specific direction. When the unbalanced magnetic attraction is stronger than the centrifugal force, when the centrifugal force acting on the rotating rotor and the unbalanced magnetic attraction force are directed in opposite directions, the rotor is stretched. At this time, the rotor system collides with the internal parts of the motor shaft or the stator, so a collision sound is generated after each rotation. Whether the rotor hits the motor shaft or whether it hits the stator depends on the gap between the rotor and the motor shaft and the gap between the rotor and the stator.
在擺頭動作使用步進馬達之風扇，係在擺頭運轉時，產生於步進馬達內部之衝撞聲被風扇的構造體放大，因此，有產生使用者感覺不舒服之噪音之問題。 A fan that uses a stepping motor for swinging head movement. When the swinging head is running, the impact sound generated inside the stepping motor is amplified by the structure of the fan. Therefore, there is a problem that a user feels uncomfortable.
本發明係鑑於上述問題所研發出者，其目的在於獲得一種在擺頭運轉時，防止自步進馬達產生噪音之風扇。 The present invention has been developed in view of the above-mentioned problems, and an object thereof is to obtain a fan for preventing noise from being generated from a stepping motor when the head is rotated.
為了解決上述課題，達成目的，本發明係包括：葉輪；電動機部，旋轉葉輪；以及擺頭機構，進行變動電動機部之方向之擺頭動作。擺頭機構係包括步進馬達，前述步進馬達具有：定子；馬達軸，被設於定子之內側；以及轉子，在與馬達軸之間設置間隙，被***馬達軸。步進馬達係一邊藉馬達軸自定子中心偏移所產生之不平衡磁吸力，而往與轉子被拉伸之方向相同側被拉伸，一邊以轉子旋轉之速度被運轉。 In order to solve the above-mentioned problems and achieve the object, the present invention includes: an impeller; a motor unit that rotates the impeller; and a swing mechanism that performs a swing motion that changes the direction of the motor portion. The swing mechanism includes a stepping motor. The stepping motor includes a stator, a motor shaft provided inside the stator, and a rotor provided with a gap between the motor shaft and the motor shaft. The stepping motor is rotated at the speed of the rotor while it is being stretched to the same side as the direction in which the rotor is stretched by the unbalanced magnetic attraction generated by the motor shaft being offset from the center of the stator.
本發明之風扇，係可發揮在擺頭運轉時，防止自步進馬達產生噪 音之效果。 The fan of the present invention can be used to prevent noise generated by the stepping motor when the head is running. The effect of sound.
1‧‧‧前護罩 1‧‧‧ front shield
2‧‧‧後護罩 2‧‧‧ rear shield
3‧‧‧步進馬達 3‧‧‧ Stepping Motor
3a‧‧‧馬達支架 3a‧‧‧Motor bracket
3b‧‧‧底面 3b‧‧‧ underside
3c‧‧‧傳遞機構 3c‧‧‧ Delivery agency
4‧‧‧驅動齒輪 4‧‧‧Drive gear
5‧‧‧旋轉齒輪 5‧‧‧ rotating gear
6、16‧‧‧定子 6, 16‧‧‧ stator
7、17‧‧‧轉子 7, 17‧‧‧ rotor
7a‧‧‧軸體 7a‧‧‧ Shaft
8、18‧‧‧馬達軸 8, 18‧‧‧ Motor shaft
9‧‧‧潤滑脂 9‧‧‧grease
33‧‧‧守護環 33‧‧‧Guard Ring
100‧‧‧風扇 100‧‧‧fan
101‧‧‧葉輪 101‧‧‧ Impeller
102‧‧‧電動機部 102‧‧‧Motor Department
103‧‧‧支柱部 103‧‧‧ Pillar
104‧‧‧基座部 104‧‧‧ base
104a‧‧‧開關 104a‧‧‧Switch
105、106‧‧‧擺頭機構 105, 106‧‧‧ Head swing mechanism
第1圖係表示本發明第1實施形態之風扇外觀之圖。 Fig. 1 is a diagram showing the appearance of a fan according to a first embodiment of the present invention.
第2圖係第1實施形態風扇的前護罩及後護罩之分解圖。 Fig. 2 is an exploded view of the front cover and the rear cover of the fan according to the first embodiment.
第3圖係表示第1實施形態風扇的基座部內部構造之圖。 Fig. 3 is a diagram showing the internal structure of the base portion of the fan according to the first embodiment.
第4圖係實現第1實施形態風扇之左右擺頭機構之步進馬達之立體圖。 Fig. 4 is a perspective view of a stepping motor that realizes the left and right swinging mechanism of the fan of the first embodiment.
第5圖係實現第1實施形態風扇之左右擺頭機構之步進馬達之分解立體圖。 FIG. 5 is an exploded perspective view of a stepping motor that realizes the left and right swinging head mechanism of the fan of the first embodiment.
第6圖係表示在第1實施形態風扇的步進馬達，產生不平衡磁吸力之狀態之圖。 Fig. 6 is a diagram showing a state in which the stepping motor of the fan according to the first embodiment generates an unbalanced magnetic attraction force.
第7圖係表示實現第1實施形態風扇之左右擺頭機構之步進馬達之旋轉中之狀態變化之圖。 FIG. 7 is a diagram showing a state change during the rotation of a stepping motor that realizes the left and right swing mechanism of the fan of the first embodiment.
以下，依據圖面，詳細說明本發明實施形態之風扇。而且，本發明並不侷限於此實施形態。 Hereinafter, the fan according to the embodiment of the present invention will be described in detail based on the drawings. The present invention is not limited to this embodiment.
第1實施形態 First Embodiment
第1圖係表示本發明第1實施形態之風扇外觀之圖。第2圖係第1實施形態風扇的前護罩及後護罩之分解圖。第3圖係表示第1實施形態風扇的基座部內部構造之圖。風扇100係包括：葉輪101；電動機部102，旋轉葉輪101；支柱部103，支撐電動機部102；以及基座部104，以根部保持支柱部103。葉輪101係被安裝於電動機部102的電動機軸體上。電動機部102的電動機係旋轉葉輪101，藉此， 風扇100產生風。風扇100係包括保護葉輪101之前護罩1及後護罩2，使得使用者無法接觸到旋轉之葉輪101。 Fig. 1 is a diagram showing the appearance of a fan according to a first embodiment of the present invention. Fig. 2 is an exploded view of the front cover and the rear cover of the fan according to the first embodiment. Fig. 3 is a diagram showing the internal structure of the base portion of the fan according to the first embodiment. The fan 100 includes an impeller 101, a motor portion 102, a rotating impeller 101, a pillar portion 103 that supports the motor portion 102, and a base portion 104 that holds the pillar portion 103 at a root portion. The impeller 101 is mounted on a motor shaft of the motor unit 102. The electric motor of the electric motor unit 102 rotates the impeller 101, whereby The fan 100 generates wind. The fan 100 includes a front shield 1 and a rear shield 2 for protecting the impeller 101 so that a user cannot access the rotating impeller 101.
後護罩2係被安裝於電動機部102上。葉輪101係被配置於後護罩2之內側。在後護罩2安裝有守護環33，組裝前護罩1到守護環33上，藉此，葉輪101係藉前護罩1及後護罩2，自前後被覆蓋保護。 The rear cover 2 is attached to the motor portion 102. The impeller 101 is arranged inside the rear shroud 2. A guard ring 33 is mounted on the rear shield 2, and the front shield 1 is assembled to the guard ring 33, whereby the impeller 101 is covered and protected from the front and rear by the front shield 1 and the rear shield 2.
電動機部102係具有上下驅動之擺頭機構105。又，基座部104係包括藉旋轉支柱部103，以左右驅動之擺頭機構106。組合電動機部102之上下方向之擺頭機構105，與基座部104之左右方向之擺頭機構106，藉此，使用者可設定送風方向。風扇100之風量及擺頭之方向，係以被設於基座部104上之開關104a操作。而且，風扇100之風量及擺頭之方向，也可以藉遙控器操作。 The motor unit 102 is provided with a swing mechanism 105 that drives up and down. In addition, the base portion 104 includes a swing mechanism 106 that is driven to the left and right by rotating the pillar portion 103. The head swing mechanism 105 in the up-down direction of the motor portion 102 and the head swing mechanism 106 in the left-right direction of the base portion 104 are combined, whereby the user can set the air blowing direction. The air volume of the fan 100 and the direction of the swing head are operated by a switch 104 a provided on the base portion 104. In addition, the air volume of the fan 100 and the direction of swinging the head can also be operated by the remote control.
在基座部104之內部設置有步進馬達3。步進馬達3係藉內部之轉子旋轉，旋轉被安裝於軸體上之驅動齒輪4。又，支柱部103係藉基座部104，可旋轉地被支撐。在支柱部103的下部安裝有旋轉齒輪5，當步進馬達3的驅動齒輪4傳遞旋轉力到旋轉齒輪5時，支柱部103旋轉。亦即，步進馬達3及旋轉齒輪5，係構成風扇100之左右之擺頭機構106。藉支柱部103旋轉，進行風扇100之左右之擺頭動作。 A stepping motor 3 is provided inside the base portion 104. The stepping motor 3 rotates the internal gear to rotate the driving gear 4 mounted on the shaft. The pillar portion 103 is rotatably supported by the base portion 104. A rotation gear 5 is mounted on the lower portion of the pillar portion 103. When the driving gear 4 of the stepping motor 3 transmits a rotational force to the rotation gear 5, the pillar portion 103 rotates. In other words, the stepping motor 3 and the rotating gear 5 constitute the swinging mechanism 106 on the left and right of the fan 100. When the pillar portion 103 rotates, the swinging motion of the fan 100 is performed.
第4圖係實現第1實施形態風扇之左右擺頭機構之步進馬達之立體圖。第5圖係實現第1實施形態風扇之左右擺頭機構之步進馬達之分解立體圖。步進馬達3係與馬達支架3a的底面3b垂直地，固定有馬達軸8。在筒狀構件的表面包括永久磁鐵之轉子7，係在與馬達軸8之間設置間隙，***馬達軸8。轉子7係包括成為步進馬達3的輸出軸之軸體7a。軸體7a之旋轉，係藉傳遞機構3c而被傳遞到驅動齒輪4。在***轉子7到被固定於馬達支架3a上之馬達軸8後之狀 態下，旋轉轉子7，所以，在轉子7之內徑與馬達軸8之間具有間隙。轉子7係藉自重之不平衡，於旋轉時，一邊產生離心力以抖動，一邊旋轉。 Fig. 4 is a perspective view of a stepping motor that realizes the left and right swinging mechanism of the fan of the first embodiment. FIG. 5 is an exploded perspective view of a stepping motor that realizes the left and right swinging head mechanism of the fan of the first embodiment. The stepping motor 3 is fixed to the motor shaft 8 perpendicularly to the bottom surface 3b of the motor holder 3a. A rotor 7 including a permanent magnet is provided on the surface of the cylindrical member, and a gap is provided between the rotor 7 and the motor shaft 8 to insert the motor shaft 8. The rotor 7 includes a shaft body 7 a serving as an output shaft of the stepping motor 3. The rotation of the shaft body 7a is transmitted to the drive gear 4 via the transmission mechanism 3c. After inserting the rotor 7 to the motor shaft 8 fixed to the motor bracket 3a In the state, the rotor 7 is rotated, so there is a gap between the inner diameter of the rotor 7 and the motor shaft 8. The rotor 7 is caused by the unbalance of its own weight, and rotates while generating centrifugal force to shake while rotating.
另外，馬達軸8係因為製造時之參差，有時自定子6中心偏移以被固定。當馬達軸8自定子6中心偏移時，在轉子7之外周與定子6之內徑之間隙產生不均勻。第6圖係表示在第1實施形態風扇的步進馬達，產生不平衡磁吸力之狀態之圖。如第6圖所示，在通電時，當產生不平衡磁吸力時，特定方向之力量強力作用到轉子7上。 In addition, the motor shaft 8 may be offset from the center of the stator 6 to be fixed due to variations in manufacturing. When the motor shaft 8 is offset from the center of the stator 6, unevenness occurs in the gap between the outer periphery of the rotor 7 and the inner diameter of the stator 6. Fig. 6 is a diagram showing a state in which the stepping motor of the fan according to the first embodiment generates an unbalanced magnetic attraction force. As shown in FIG. 6, when an unbalanced magnetic attraction force is generated when the power is applied, a force in a specific direction is strongly applied to the rotor 7.
第7圖係表示實現第1實施形態風扇之左右擺頭機構之步進馬達之旋轉中之狀態變化之圖。第1實施形態之風扇100係使轉子7之旋轉速度減慢以減少離心力，使得藉磁吸力而轉子7不被拉伸。亦即，使離心力較小而磁吸力勝過離心力，使轉子7在被拉伸往與被磁吸力拉伸之方向同側之狀態下旋轉。轉子7係一邊往與被磁吸力拉伸之方向同側被拉伸，一邊旋轉，所以，轉子7不會急遽移動，不產生衝撞。 FIG. 7 is a diagram showing a state change during the rotation of a stepping motor that realizes the left and right swing mechanism of the fan of the first embodiment. The fan 100 of the first embodiment slows down the rotation speed of the rotor 7 to reduce the centrifugal force, so that the rotor 7 is not stretched by magnetic attraction. That is, the centrifugal force is made smaller and the magnetic attraction force exceeds the centrifugal force, so that the rotor 7 is rotated in a state where it is stretched to the same side as the direction in which it is stretched by the magnetic attraction force. The rotor 7 is rotated while being stretched in the same direction as the direction in which it is stretched by the magnetic attraction force. Therefore, the rotor 7 does not move rapidly and does not collide.
第7圖係表示雖然不平衡磁吸力大於離心力，但是，配合力量之差較小時之轉子17之旋轉狀態之變化。當轉子17係高速旋轉時，轉子17係沿著馬達軸18外周旋轉，於在作用離心力之方向上，確保間隙後之狀態下旋轉。但是，當離心力朝向不平衡磁吸力之相反方向時，離心力變得不含對於不平衡磁吸力之法線方向之成分，所以，轉子17被定子16拉伸，轉子17係與馬達軸18或稱做定子16之步進馬達內部之零件相衝撞。轉子17之衝撞，係離心力朝向不平衡磁吸力之相反方向後，所產生之現象，所以，轉子17之衝撞係每轉一圈產生一次。 FIG. 7 shows changes in the rotation state of the rotor 17 when the difference in the matching force is small although the unbalanced magnetic attraction force is greater than the centrifugal force. When the rotor 17 rotates at a high speed, the rotor 17 rotates along the outer periphery of the motor shaft 18, and rotates in a state where a gap is ensured in a direction in which a centrifugal force acts. However, when the centrifugal force faces the opposite direction of the unbalanced magnetic attraction force, the centrifugal force becomes free of the components of the normal direction of the unbalanced magnetic attraction force. Therefore, the rotor 17 is stretched by the stator 16 and the rotor 17 is connected with the motor shaft 18 or said The parts inside the stepping motor of the stator 16 collide. The collision of the rotor 17 is a phenomenon that occurs when the centrifugal force is directed in the opposite direction of the unbalanced magnetic attraction force. Therefore, the collision of the rotor 17 is generated once every revolution.
第1實施形態之風扇100，係壓抑每一分鐘轉子7之旋轉速度到 70rpm左右，藉此，減少產生在轉子7上之離心力。離心力係以F=mrω2定義，所以，當轉子7與轉子17係相同形狀時，藉轉子7以70rpm旋轉所產生之離心力，係藉轉子17以100rpm旋轉所產生之離心力之0.56倍左右，離心力被減少到比一半多一些。因此，轉子7之旋轉速度，最好在50rpm~100rpm之間。 The fan 100 of the first embodiment suppresses the rotation speed of the rotor 7 to about 70 rpm per minute, thereby reducing the centrifugal force generated on the rotor 7. The centrifugal force is defined by F = mrω 2 , so when the rotor 7 and the rotor 17 have the same shape, the centrifugal force generated by rotating the rotor 7 at 70 rpm is about 0.56 times the centrifugal force generated by rotating the rotor 17 at 100 rpm Was reduced to more than half. Therefore, the rotation speed of the rotor 7 is preferably between 50 rpm and 100 rpm.
因為轉子17之衝撞而產生之衝撞聲，係在不平衡磁吸力與離心力之差較小時，產生之情況。亦即，雖然不平衡磁吸力勝過離心力，但是，其係在旋轉時，當也具有因為離心力而轉子17沿著馬達軸18外周旋轉之左右之力量時，產生之情況。產生在第1實施形態之風扇100的步進馬達3的轉子7上之離心力，係比產生在轉子17上之離心力之一半還要大一些。因此，不平衡磁吸力與離心力之差，係變得轉子7大於轉子17，所以，藉離心力，轉子7變得不沿著馬達軸8外周旋轉，轉子7係在決定之位置上，一邊被不平衡磁吸力持續拉伸，一邊旋轉。因此，可避免旋轉中之轉子7之急遽移動，也可以抑制由轉子7之衝撞所致之衝撞聲產生。 The impact sound generated by the impact of the rotor 17 is caused when the difference between the unbalanced magnetic attraction force and the centrifugal force is small. That is, although the unbalanced magnetic attraction is better than the centrifugal force, it is caused by the centrifugal force when the rotor 17 rotates along the outer periphery of the motor shaft 18 due to the centrifugal force. The centrifugal force generated on the rotor 7 of the stepping motor 3 of the fan 100 of the first embodiment is larger than half of the centrifugal force generated on the rotor 17. Therefore, the difference between the unbalanced magnetic attraction force and the centrifugal force makes the rotor 7 larger than the rotor 17. Therefore, by the centrifugal force, the rotor 7 does not rotate along the outer periphery of the motor shaft 8, and the rotor 7 is in a determined position. The balance magnetic force is continuously stretched while rotating. Therefore, the rapid movement of the rotor 7 during rotation can be avoided, and the generation of a collision sound caused by the collision of the rotor 7 can be suppressed.
如上所述，轉子7旋轉之情事，係因為轉子7與馬達軸8之間設有間隙，藉極力減少轉子7與馬達軸8間之間隙，可抑制轉子7之急遽移動。但是，當轉子7係塑膠成型品時，轉子7之尺寸參差較大，要嚴格管理轉子7內徑側之間隙係很困難。在此，第1實施形態之步進馬達3，為兼具減少轉子7之衝擊音之目的，與使轉子7之旋轉滑順之目的，在轉子7與馬達軸8間之間隙填充有潤滑脂9。 As described above, the reason why the rotor 7 rotates is because a gap is provided between the rotor 7 and the motor shaft 8. By extremely reducing the gap between the rotor 7 and the motor shaft 8, the rapid movement of the rotor 7 can be suppressed. However, when the rotor 7 is a plastic molded product, the size of the rotor 7 varies greatly, and it is difficult to strictly manage the clearance system on the inner diameter side of the rotor 7. Here, the stepping motor 3 of the first embodiment has grease for filling the gap between the rotor 7 and the motor shaft 8 for the purpose of both reducing the impact noise of the rotor 7 and smoothing the rotation of the rotor 7. 9.
又，在轉子7產生離心力之原因，係轉子7自重之不平衡。在抑制轉子7自重之不平衡時，必須提高轉子7之尺寸精度。雖然欲嚴格管理轉子7內徑側之間隙係很困難，但是，管理轉子7外徑之尺寸係比較容易。因此，第1實施形態之步進馬達3，係轉子7與馬達軸8之間隙之大小，成為小於定子6與轉子7間 之間隙。因此，步進馬達3即使在轉子7有急遽移動之情形下，轉子7與定子6也不會相衝撞。而且，也考慮定子6內部之參差及轉子7之擺動，決定定子6與轉子7間之間隙之大小，藉此，可提高減少由轉子7衝撞所致之產生衝撞聲之效果。 In addition, the cause of the centrifugal force in the rotor 7 is the imbalance of the dead weight of the rotor 7. When suppressing the imbalance of the weight of the rotor 7, it is necessary to improve the dimensional accuracy of the rotor 7. Although it is difficult to strictly manage the clearance system on the inner diameter side of the rotor 7, it is easier to manage the size of the outer diameter of the rotor 7. Therefore, the stepping motor 3 of the first embodiment has a smaller gap between the rotor 7 and the motor shaft 8 than between the stator 6 and the rotor 7. The gap. Therefore, the stepping motor 3 does not collide with the stator 6 even when the rotor 7 moves sharply. In addition, the internal variation of the stator 6 and the swing of the rotor 7 are also taken into consideration to determine the size of the gap between the stator 6 and the rotor 7, thereby improving the effect of reducing the collision sound caused by the collision of the rotor 7.
第1實施形態之風扇100，係使轉子7一邊被不平衡磁吸力持續拉伸，一邊旋轉，所以，可避免旋轉中之轉子7之急遽移動，可抑制由轉子7衝撞所致之衝撞聲之產生。 In the fan 100 of the first embodiment, the rotor 7 is rotated while being continuously stretched by the unbalanced magnetic attraction force. Therefore, the rapid movement of the rotor 7 during rotation can be avoided, and the impact of the collision sound caused by the collision of the rotor 7 can be suppressed. produce.
在上述之說明中，風扇100係有抑制在實現左右方向之擺頭機構106之步進馬達3上之由轉子7衝撞所做之產生衝撞聲，但是，當使包括有電動機部102之上下方向之擺頭機構105，以步進馬達實現時，與步進馬達3同樣地，藉使轉子一邊被不平衡磁吸力持續拉伸，一邊旋轉，可抑制衝撞聲之產生。 In the above description, the fan 100 suppresses the collision noise caused by the rotor 7 colliding on the stepping motor 3 which realizes the left-right swing mechanism 106. However, when the motor 100 is included in the up-down direction When the swinging head mechanism 105 is realized by a stepping motor, similarly to the stepping motor 3, the rotor can be rotated while being continuously stretched by an unbalanced magnetic attraction force, thereby suppressing the occurrence of a collision sound.
以上之實施形態所示之構造，係例示本發明內容之一例者，其也可以與其他周知之技術組合，或者，也可以在不脫逸本發明要旨之範圍內，省略或變更構造之一部分。 The structure shown in the above embodiment is an example of the content of the present invention, and may be combined with other well-known technologies, or a part of the structure may be omitted or changed without departing from the scope of the present invention.
Claims (5)
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/JP2018/013100 WO2019186859A1 (en) | 2018-03-29 | 2018-03-29 | Electric fan |
| WOPCT/JP2018/013100 | 2018-03-29 | ||
| ??PCT/JP2018/013100 | 2018-03-29 |
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| TWI675531B true TWI675531B (en) | 2019-10-21 |
| TW201943185A TW201943185A (en) | 2019-11-01 |
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| TW107127806A TWI675531B (en) | 2018-03-29 | 2018-08-09 | fan |
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| JP (1) | JPWO2019186859A1 (en) |
| CN (1) | CN111886413B (en) |
| TW (1) | TWI675531B (en) |
| WO (1) | WO2019186859A1 (en) |
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- 2018-03-29 WO PCT/JP2018/013100 patent/WO2019186859A1/en active Application Filing
- 2018-03-29 CN CN201880091202.8A patent/CN111886413B/en active Active
- 2018-03-29 JP JP2020508683A patent/JPWO2019186859A1/en active Pending
- 2018-08-09 TW TW107127806A patent/TWI675531B/en active
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Also Published As
| Publication number | Publication date |
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| CN111886413B (en) | 2022-02-25 |
| WO2019186859A1 (en) | 2019-10-03 |
| JPWO2019186859A1 (en) | 2020-12-03 |
| CN111886413A (en) | 2020-11-03 |
| TW201943185A (en) | 2019-11-01 |
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