TWI283280B - Swing device for an electric fan - Google Patents

Abstract

An electric fan comprises a fan portion, a casing portion, a supporting portion, a motor portion, and a swing device. The fan portion has an impeller, and a fan frame. The casing portion has a base, a cover, and a screw. The supporting portion has a first pivotal member, and a second pivotal member. The motor portion has a main body, a shaft, and an extension shaft. The swing device has a gear assembly and a connecting rod. The main body of the motor drives the impeller through the shaft and the extension shaft. The swing device is positioned between the fan portion and the motor portion for substantially maintaining the weight balance of the electric fan when the electric fan is swinging. Thus, when the motor portion drives the swing device, the swing device is actuated in an opposite direction by the connecting rod so that the fan portion, the motor portion, and the swing device swing stably with respect to the supporting portion.

Description

1283280 V. INSTRUCTIONS OF THE INVENTION (1) Technical field to which the invention pertains] = The invention relates to: j electric fan oscillating head device, particularly load balancing, for reducing the cost of the horse = swinging device. Long use of the life of the electric fan swaying head Previous technology] the use of electric fans swinging head, such as the first! As shown in the figure, it includes '- outer casing part 2, one supporting part 3, one gas far side 4, another feather rr is 'violation P 4 and one pendulum test R 〇兮, the fan 1 is provided with a wheel 11 and a fan Box 12. The outer casing portion 2|^; a 'two cover 21 and one outer casing screw 2 2 . The vibration head 罘 < ancient °

.. The side of the swing state has a press to open y ς 1, - I wheel set 5 2 and a tie rod 5 3 . In the transportation of the spine, the people, go to as c Du Lian to the day of the motor department 4 to drive the Sf 15 5, the swing 5 by rotating the surname ^ 曰 R q, the constant motion 4 swing head The second production is caused by the connecting rod 53. The fan unit 1, the motor unit 4, and the oscillating head 5 π are opposite to each other.妒 丨 及 及 及 及 及 及 及 及 及 及 及 及 及 及 及 共同 共同 共同 共同 共同 共同 共同 共同 共同 共同 共同 共同 共同 共同 共同 共同 共同 共同 共同 共同 共同 共同 共同 共同 共同 共同 共同 共同 共同 共同 共同 共同 共同 共同 共同The weight of the oscillating weight is unbalanced, so the phase is opposite to the working load of the gear set 52 in the oscillating weight 5, and ^^ 5 2 ^ ^ ^ # τ ^ ^ ^ 〇^ The problem is caused by the imbalance of the workmanship and the imbalance of the workmanship. Therefore, it is easy to produce jitter and frustration when oscillating. The low electric wind ii: consumes electricity with π, affects the operation efficiency even降 外; ΪΓΛ外外扇,,装置, as shown in Figure 2, it also contains... (4) 3'_Motor 4 and a oscillating head C:\Logo-5\Five Continents\PK9755

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I 1 1283280 V. Inventive Note (2) 5, and further add a weight 6 . The outer casing portion 2 is provided with a casing cover 21 and a casing screw 22. The oscillating weight 5 is provided with a push switch 51, a gear set 52 and a connecting rod 53. The weight 6 is combined with the outer casing portion 2, the oscillating device and the mouthpiece to balance the weight of the front and rear portions of the oscillating weight 5 by the weighting block β to reduce the swaying device 5 The working load of the gear set 52 further extends the service life of the 4 S electric fan. However, in actual manufacture, the weight 6 adds the cost and the overall weight of the electric fan, thereby increasing the power consumption of the electric fan. Furthermore, as shown in FIG. 3, when the electric fan changes the size of the wind/feather portion 1 according to the product demand, since the fan portion j is changed to a smaller size, the axial dimension of the motor portion 4 is also relatively reduced. Therefore, the oscillating weight 5 and the weight 6 must simultaneously move in the direction of the motor portion 4. Therefore, the housing screw 22 needs to be selected to have a longer size 'to secure the housing cover 21 and the weight 6. However, since the electric fan is automatically assembled, the outer casing screw 22 is liable to cause an over-tightening of the assembly. If the outer casing screw 22 is too tightly assembled, the outer peripheral cover may be recessed, which affects the appearance; if the outer casing screw 22 When the assembly is too loose, the f-block 6 will be loosened and noise will be generated during operation. For the above reasons, it is still necessary to further improve the above-described electric fan swing device. In view of the above, the present invention improves the above-mentioned disadvantages by directly arranging a oscillating device between a fan portion and a motor portion to facilitate the rotation balance during the swinging, so that the arrangement of a weight is further omitted. To reduce assembly costs and extend service life. SUMMARY OF THE INVENTION The main object of the present invention is to provide an electric fan swing head device by

283280 V. INSTRUCTIONS (3) ^ The weight of a oscillating device directly disposed in a fan portion and a motor portion balances the weight of the motor portion, such as B to balance the fan, so that the present invention has an extended service life. The head can be oscillated. The second objective is to provide an electric fan oscillating head to directly set a oscillating device to a fan portion and a motor. Cost, reduction, and cancer. Another object of the present invention is to provide an electric fan: the effect of heavy weight. ^The oscillating device is directly disposed on a fan portion and a motor::: l = a weight, add one Adjusting the assembly margin: Second, when the size is reduced, the outer casing portion can be adjusted and the dream = ° 卩. When the interior of the electric wind 空 is empty f [to make the invention have a rise J: temporary:: The effect of the external noise is compensated for, and the slewing device and the lowering of the rotation of the electric fan according to the present invention, the fulcrum portion, the motor portion, and the slewing portion, the fan portion, and the outer casing screw. The support portion is provided with a first pivot: = two outer f-covers and - the outer casing portion is provided with a motor body and a shaft rod The horse-gear set and a connecting rod. The motor=hai oscillating head is provided with a load-balance balance of the swing. Thereby, between the cymbal and the motor cymbal, the shape is reversed by the connecting rod When the motor is at the oscillating weight, the oscillating device* and the oscillating device* are moved to the left and right with respect to the support portion, and the motor portion is rotated to the left and right. The above objectives, features, and advantages can be more clearly understood.

f Page 9 C:\Logo-5\Five Continents\PK9755. ptd 1283280 V. DESCRIPTION OF THE INVENTION (4) Hereinafter, preferred embodiments of the present invention will be exemplified and described in detail with reference to the accompanying drawings. Referring to Fig. 4, the electric fan oscillating head device according to the first embodiment of the present invention comprises a fan unit, a casing portion 2, a supporting portion 3, a motor portion 4, and a oscillating device 5. The fan unit 1 is provided with a rim and a frame 12 . The outer casing portion 2 is provided with a casing 2, a casing cover 21 and a casing screw 22. The support portion 3 is provided with a first pivot end 31 and a second pivot end 32. The motor portion 4 does not have a motor body 41, a shaft 42 and an extension rod 43. The housing screw 22 locks the housing cover 21 to the end surface of the motor body 41. The shaft 42 is axially coupled to the extension rod 43. When the motor body 41 is operated, the shaft 42 and the extension rod 43 are rotated. The system of the oscillating weight 5 can be made by powder metallurgy or casting, and is provided with a push switch 5A, a gear set, a connecting rod 53, a sleeve 54, and a joint 55. The push switch 51 wheel set 52 is a conventional construction. The connecting rod 53 is pivotally connected to the pivoting end 31 of the supporting portion 3 . The sleeve 54 is configured to pass through the extension rod 43 and can be pivotally connected to the second pivot end 32 of the support portion 3. The coupling seat 55 is provided at the front end of the 2?54 for coupling the housing seat 2''. Depending on the product requirements, the 'sleeve 54 and the coupling seat 55 are selected to be integrally or separately disposed in combination with the body of the oscillating weight 5. The eye is further referred to in Fig. 4, and the horse shaft 42 of the present invention causes the extension rod 43 to rotate. Once the pressure is applied, = when it is depressed, 'the gear set 52 will be separated from the motor portion 4' and thus the gear set 52 is idling. The opposite? When the switch is bounced, the gear set 52 and the motor unit 4 will be extended.

1283280 V. Description of the Invention (5) Thus, the gear extension 52 drives the gear set 52. Since the connection is at the first pivotal end 31 of the support portion 3, when the movement is made, the oscillating weight 5 is reversed relative to the cymbal 5 by rotating the connecting rod 53, so that the fan portion 1 and the motor portion 4 and the oscillating head 5 collectively perform stable left and right swings with respect to the cymbal support 邛3.盥: As shown in Fig. 4, since the oscillating weight device 5 is disposed between the fan unit 1 and the door unit, the weight of the fan unit 1 is located at the oscillating weight unit 5, and the weight of the motor unit 4 That is, it is located at the rear end of the oscillating device 5. The sleeve 54 of the same device 5 and the coupling seat 55_S• Before the 'b head yi 5, the ^ 丨丨 丨丨 — — 城 城 城 城 城 城 城 城 城 城 城 城 城 城 城 城 城In the rear side, the body of the oscillating head 5 can also be properly squatted; position. Therefore, the two (four) of the oscillating head 5 can be oscillated by the Λ, so that the swing can be increased in a stepwise manner. Further reducing the cost of the electric fan oscillating device: ίί 5th phase: showing that the electric fan of the second embodiment of the present invention is selected in a small size: the first embodiment 'the second embodiment is based on product requirements • The body size of the body my body 41 is relatively reduced, so that the horse feeds a cow;; I;: • The excess axial space is generated between the covers 21. At this time, the positive side is assembled with the peripheral part 2 The margin, that is, the increase==seat 2=depth, the housing portion 2 of the outer casing portion 2 can be reduced to lock the motor portion 4 in the peripheral cover 21, and Indeed The housing cover 21 and Ma Dali phase. "

1283280 V. INSTRUCTIONS (6) Tightly abutting, thereby eliminating the fact that the outer casing of the outer casing 2 2 is too tight to cause the outer cover 1 to be recessed, or the assembly is too loose, causing the 5th motor portion 4 to loosen and generate noise. Awkward question; 4. Therefore, the noise of the electric fan swing device is further reduced, and the appearance thereof is increased. Referring to Fig. 6, there is disclosed an electric fan oscillating head device according to a third embodiment of the present invention. Compared with the second embodiment, the third embodiment selects a small size (or large size) motor unit according to product requirements. 4, that is, the axial length of the motor portion 4 is shorter [or longer]. At this time, the motor body 41 and the outer casing cover are relatively narrowed [or expanded] due to the axial dimension of the motor body 4 1 . 21 • Excessive axial space (or insufficient space) is created. In this case, the creation can be pre-designed to increase (or reduce) the axial length of the sleeve 54 of the oscillating weight 5, thereby utilizing the same specification. The housing screw 22 can be used in the housing cover 21, and the housing cover 21 and the motor portion 4 are ensured to be connected, thereby eliminating the problem that the housing screw 22 is over-tightened and the housing cover 21 is recessed. Or the looseness of the assembly causes the motor portion 4 to loosen and generate noise. Therefore, the noise of the electric fan swing device can be further reduced, and the appearance thereof can be further improved. As described above, compared with the first and second figures. Custom electric fan swing device cost, use The shortcoming of short life, high noise, heavy weight, etc., the invention of Fig. 4 moves the position of the oscillating weight 5 between the fan portion 1 and the motor portion 4, and omits a weight. It is indeed possible to relatively balance the weight of the fan portion 1 which is located in front of the oscillating weight 5 to the weight of the motor portion 4 at the rear end of the oscillating weight 5. At this time, the weight of the swaying device 5 on both sides can be balanced. In order to achieve swing balance, and effectively reduce noise, reduce costs, extend service life and reduce

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C:\Logo-5\Five Continents\PK9755. ptd Page 13 1283280 Schematic description of the diagram [Simple description of the diagram Figure 1 Figure 2 Figure 3 Figure 4 View. Figure 5 View. Figure 6 View. A sectional view of a combination of a conventional electric fan oscillating device. A cross-sectional view of another conventional electric fan oscillating device. A cross-sectional view of another conventional electric fan oscillating device. Combination sectional view of electric fan oscillating head device according to a first embodiment of the present invention. Combination sectional view of electric fan oscillating head device according to a second embodiment of the present invention

Fan part 11 Fan wheel 12 Fan frame outer casing part 20 Housing seat 21 Housing cover Housing screw 3 Support part 31 First ^ terminal end Second frame end 4 Motor part 41 Motor body shaft 43 Extension rod 5 Swing head push switch 52 gear set 53 connecting rod sleeve 55 joint seat 6 weight

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Claims (1)

1283280 Sixth, the scope of application for patents 1. An electric fan, a motor, a fan, a fan unit, a support for the part, and a horse right swing. 2. According to the application, an external system is adjustable. 3. According to the application, the ^^ part is covered and The 4, according to the application of the other side of the head 5, according to the application I cylinder selector. 6. According to the application of the head device 7, according to the application fan swing device, comprising: a portion, at least one wheel; a portion for driving the fan portion of the fan portion; the device is disposed on the fan portion Between the motor portions, the weight can be balanced with the weight of the motor portion; and the portion for supporting the oscillating weight; the motor portion drives the oscillating device, the oscillating device can drive the fan portion and An electric fan oscillating device of the first aspect of the invention, wherein the oscillating device is provided with a housing portion and a housing cover, the housing cover is integrally coupled to the housing seat. The electric fan oscillating device of the second aspect of the invention, wherein the outer part comprises a casing screw, the outer casing cover screw being coupled to the outer casing motor portion. The electric fan oscillating device of claim 1, wherein the pendulum includes a sleeve that can be used to assist in adjusting the balance of the oscillating weight of the oscillating weight. The electric fan oscillating device of the fourth aspect of the patent, wherein the sleeve is integrally formed and separately arranged to be combined with the electric fan oscillating device of the fourth aspect of the swing head patent, wherein the front end of the pendulum sleeve is further formed A combination seat. The electric fan oscillating device of the first item of the patent scope, wherein the branch C:\Logo-5\Five Continents\PK9755. ptd Page 15 1283280 VI. The patented range support has a first pivotal end, and the swinger is provided with a connecting rod for the board to be connected to the support The first pivot end. _ 8. The electric fan oscillating device according to claim 4, wherein the supporting portion is provided with a second pivoting end for pivoting to the bottom of the sleeve of the oscillating device. C:\Logo-5\Five Continents\PK9755. ptd第16页