TWI660127B - Fan swing automatic control device - Google Patents

Abstract

An automatic fan swing control device includes a body, a cover, a driven gear, a transmission gear, a motor, and an upper and lower limit controller. The seat system forms two connected transmission spaces and one Driven space; the cover seals the seat and passes through a shaft hole; the driven gear system is provided in the driven space; the transmission gear passes through the shaft hole with a lifting system, so that an upper tooth and The segment teeth are rotatably provided in the transmission space to move up and down; the motor rotates an output shaft to interlock the lifting portion from a upper limit position to a lower limit position; the upper and lower limit controllers receive a control signal for a current An upper limit cut-off frequency or a lower limit cut-off frequency of one of the preset ranges, and a switch for controlling the forward and reverse rotation of the supply current of the motor according to the upper limit cut-off frequency or the lower limit cut-off frequency.

Description

Fan swing automatic control device

The present invention relates to an automatic fan swing control device, in particular to an automatic fan swing control device.

The structure of the conventional fan rotating swing head is the patent case of Taiwan Announcement No. M533694, and its main structural characteristics are: the swing head mechanism 30 is a conventional conventional structure, so it will not be repeated here, and it is mainly corresponding to the motor 10 A perforation is provided at the worm 23 at the rear end of the rotation shaft 21, so that the worm 23 of the rotation shaft 21 of the motor 10 can pass through the inside of the base 31. The outside of the base 31 is fixed with a plurality of screws P to fix a cover 35. A rotating wheel 36 and a crank 37 are provided on the outside of the cover 35. After the power of the motor 10 is decelerated, the rotating wheel 36 and the crank 37 are rotated 360 degrees, and an S-shape is provided on one side of the crank 37 The rocker arm 371 is provided with a pivot hole 372 on the outer side of the rocker arm 371. The pivot hole 372 can be used to pivot a screw P, a washer Q and a nut N to the pivot hole 263 of the arc-shaped frame 26. In the middle.

The conventional large-angle orbiting circulating fan system is composed of Taiwan Patent Publication No. M477509, which is characterized in that the transmission gear set 23 is coupled to the rear end of the fan motor 21 and connected to the rotating shaft 211. The transmission gear set 23 series A rotary shaft 231 is protruded at the bottom. The spring 24 is a U-shaped spring and The two ends are respectively latched on the pair of pivot arms 12, and the one lateral side is latched on the fan motor 21 to provide the lifting force of the fan motor 21. The universal turntable 30 is coupled to the rotating shaft 231 of the transmission gear set 23. The universal turntable 30 includes a rotating seat 31, a fixed plate 32, and 10,000 disposed between the rotating seat 31 and the fixed plate 32. To the joint 33, the rotary seat 31 is a triangular disk body and a rotary shaft groove 311 is recessed on the top. A hemispherical rotary groove 312 is formed at a position of the bottom of the rotary seat 31 away from the rotary shaft groove 311. The transmission gear The rotation shaft 231 of the group 23 is fixed with a rotation groove 312 connected to the rotation base 31.

Regarding the prior art of the fan swing angle adjustment device, please also refer to Taiwan Patent M450630, M441046, M439108, M435515, I334901, M360306, I285708, M315781, M309026, 492524, 450326 and other patent cases.

In view of various shortcomings derived from the conventional fan swinging device, the inventor of the present case has been eager to improve and innovate, and finally successfully developed this fan swinging automatic control device.

The purpose of the present invention is to provide an automatic fan swing control device, which can provide a high-precision up and down reciprocating movement of the fan swing and swing head structure in a simple, low-cost and energy-saving manner.

An automatic fan swing control device capable of achieving the above-mentioned object of the invention includes: A body is connected to an opening to form two connected transmission spaces and a driven space, the bottom end of the transmission space forms an accommodation hole, and the bottom end of the driven space forms a jack; a cover , The opening is sealed, and a shaft hole is penetrated at a central axis of the transmission space; a driven gear is arranged at the driven space and is inserted into the socket with a fixed rod; a transmission gear, It includes a lifting section, an upper section of teeth, a lower section of teeth and a bottom. The lifting section penetrates the shaft hole. The upper section of teeth and the lower section of the teeth are rotatably provided in the transmission space to move up and down. The bottom of the section is a vertical pivot. A motor is provided with an output shaft, and the output shaft is engaged with the lifting portion in the space to rotate the output shaft to link the lifting portion to and fro from an upper limit position to a lower limit position. The upper and lower teeth can move up and down; an upper and lower limit controller receives a control signal for presetting an upper limit cut-off frequency or a lower limit cut-off frequency of a current, according to the upper cut-off frequency or the Reversible limit of the cutoff frequency of switching the current supply of the motor control.

1‧‧‧ seat

11‧‧‧ Transmission space

12‧‧‧ Receiving hole

13‧‧‧ driven space

14‧‧‧jack

15‧‧‧ rear end of shaft

2‧‧‧ cap

21‧‧‧ Shaft hole

3‧‧‧ driven gear

31‧‧‧Development pole

32‧‧‧ crank

4‧‧‧ transmission gear

41‧‧‧ Lifting Department

42‧‧‧ Upper segment teeth

43‧‧‧Lower tooth

44‧‧‧ bottom

5‧‧‧ Motor

51‧‧‧output shaft

6‧‧‧ connecting rod

61‧‧‧ opening

7‧‧‧ Upper and lower limit controller

71‧‧‧Current preset range

72‧‧‧ Upper limit cut-off frequency

73‧‧‧ lower limit cut-off frequency

FIG. 1 is a sectional view of an automatic fan swing control device according to the present invention. Shows the structural configuration of the upper segment teeth engaging with the rear end of the shaft; Figure 2 is a cross-sectional view of the fan swing automatic control device, which shows the structural configuration of the upper segment teeth separated from the rear end of the shaft; Figure 3 is the automatic control of the fan swing View of the device; Figure 4 is another cross-sectional view of the fan swing automatic control device, which shows that the cover is provided with a link that can be used as a swing lever, and the motor is arranged on the cover; Figure 5 is the fan swing A cross-sectional view of the automatic control device, which shows that the cover is provided with a lever that can swing in a lever type, the top of the lifting portion is loosely engaged with the link, and the motor is arranged on the base; FIG. 6 is the A cross-sectional view of the fan swing automatic control device, which shows that the cover is provided with a lever that can swing as a lever, and the top of the lifting portion abuts against the bottom of the link; FIG. 7 is a cross-sectional view of the fan swing automatic control device. Shows the structure of the upper end of the upper gear of the transmission gear using the structure of Taiwan Announcement No. M533694; and Figure 8 is the control flow of the control switch and the upper and lower limit controller of the fan swing automatic control device Fig.

Please refer to FIG. 1 and FIG. 2. The automatic fan swing control device provided by the present invention mainly includes: a body 1, a cover 2, a driven gear 3, a transmission gear 4, a motor 5, and an upper and lower limit. The controller 7 is configured.

The base body 1 is connected to an opening to form two transmission spaces 11 and a driven space 13 connected inward. The transmission space 11 and the driven space 13 are circular accommodation spaces, and the central bottom end of the transmission space 11 An accommodating hole 12 is formed, and a hole 14 (hole slotting) is formed at the bottom of the center of the driven space 13. In addition, a circular hole (not shown) is formed at the middle wall surface of the base 1 to make a fan motor 5 The rear end 15 of the rotating shaft can just enter the rotator of the base body 1 and the transmission gear 4 (when the transmission gear 4 moves upwards, it is disengaged from the transmission gear 4), and the front end of the rotation shaft of the fan motor (not shown in the figure) (Shown) for fixing a fan blade (not shown).

The cover 2 seals the opening, and a shaft hole 21 is penetrated at a central axis of the transmission space 11. The cover 2 can be pivotally integrated with the base 1 by screws.

The driven gear 3 is pivotally arranged in the driven space 13 and is inserted into the insertion hole 14 with a fixed rod 31. When the driving gear 4 moves downward, the lower teeth of the driving gear 4 The segment meshes with the driven gear 3 to pivotally fix a crank 32 in the designating lever 31 of the driven gear 3, so as to rotate the player that causes the fan blade to swing back and forth. As shown in FIG. 3, a set of scroll turbines or a set of bevel gears can be arranged below the driven gear 3 to provide the output rotation direction of the setting rod 31 and the rotation direction of the driven gear 3 to be perpendicular to each other.

The transmission gear 4 includes an elevator section 41, an upper section tooth 42, a lower section tooth 43 and a bottom section. 44. The lifting portion 41 penetrates the shaft hole 21, and a worm is formed on the outside of the lifting portion 41 to engage a worm wheel provided on the output shaft 51 of the motor 5. The upper teeth 42 and the lower portion The teeth 43 are rotatably disposed in the transmission space 11 and can move up and down. The bottom 44 is vertically pivoted to the receiving hole 12.

The motor 5 is fixedly mounted on the base 1 or the cover 2, and is provided with an output shaft 51. The motor 5 is provided with a worm gear. The worm gear of the output shaft 51 is in space with the lifting portion 41. The worm meshes at right angles to rotate the worm wheel of the output shaft 51 and the lifting portion 41 reciprocates from an upper limit position to a lower limit position, so that the upper teeth 42 and the lower teeth 43 are rotatably provided on the transmission. The space 11 can move up and down.

The over-and-under controller 7 receives a control signal from a control switch for presetting an upper-cut-off frequency 72 or an upper-limit frequency of a current range 71. Cut-off frequency 73 (lower-cut-off frequency), according to the upper cut-off frequency 72 or the lower-cut cut-off frequency 73, a switch that controls the forward and reverse rotation of the supply current of the motor 5 (for example: 1. The forward rotation of the motor 5 Turn on the upper cutoff frequency 72, 2. Turn off the upper cutoff frequency 72 for forward rotation of the motor 5, 3. Turn on the lower cutoff frequency 73 for forward rotation of the motor 5, 4. Turn forward for the motor 5. The lower limit cut-off frequency 73 is turned off, 5. The upper limit cut-off frequency 72 is turned on for the reversal of the motor 5, 6. The upper limit cut-off frequency 72 is turned off for the reversal of the motor 5, 7. The motor 5 is turned off Turn the lower limit cut-off frequency 73 on, 8. The reverse rotation of the motor 5 turn off the lower limit cut-off frequency 73), the positive and negative of the motor 5 The rotation system corresponds to the movable stroke of the lifting portion 41 from the upper limit position to the lower limit position, so that it indirectly links the lifting portion 41 of the transmission gear 4 to reciprocate from an upper limit position to a lower limit position, and further The upper segment teeth 42 and the lower segment teeth 43 are rotatably provided in the transmission space 11 and can move up and down, so that the present invention can provide a high precision up and down reciprocation for the fan swinging swing head structure in a simple, low cost and energy saving manner. mobile.

As shown in FIG. 4, another form of the fan swing automatic control device of the present invention is characterized by:

The base 1 is connected to an opening to form two connected transmission spaces 11 and a driven space 13 at the bottom. A receiving hole 12 is formed at the bottom end of the transmission space 11, and a bottom is formed at the bottom end of the driven space 13. Jack 14 (hole slotting).

The cover 2 seals the opening, and a shaft hole 21 is penetrated at a central axis of the transmission space 11.

The connecting rod 6 has one end of the shaft provided above the cover 2 for swinging in a lever manner, and the other movable end of the connecting rod 6 is provided with an opening 61; further, it is provided to provide power for an installation on the base 1. The motor 5 which drives the worm of the output shaft 51, the connecting rod 6 has a movable end whose one end shaft is arranged on the cover 2 and can swing up and down, and the worm of the output shaft 51 is inserted into the opening 61 to Intermesh.

The driven gear 3 is pivotally disposed in the driven space 13 and is inserted into the insertion hole 14 through a fixed rod 31.

The transmission gear 4 includes an elevator section 41 (an elevator section), an upper section tooth 42, a lower section tooth 43 and a bottom section 44. The elevation section 41 penetrates the shaft hole 21, and the top of the elevation section 41 Loosely engage with the connecting rod 6 (as shown in FIG. 5), or as shown in FIG. 6 and FIG. 7, the top of the lifting portion 41 abuts against the bottom of the connecting rod 6, the upper teeth 42 and the lower teeth 43 is rotatably disposed in the transmission space 11 and can move up and down. The bottom 44 is pivoted vertically in the accommodation hole 12, and a force can be provided below the bottom 44 to help the transmission gear 4 move upward. (As shown in Figure 6).

As shown in FIG. 7, the upper end mechanism of the upper tooth 42 of the transmission gear can use the traditional fan fan head structure of the traditional Taiwanese Patent No. M533694, and the two accommodation spaces inside the seat are respectively pivoted. A transmission gear and a oscillating gear are arranged at the end, and a shaft hole is drilled in the center of the transmission gear for the penetration of a rod, and a convex column is set on the transmission gear, and a plurality of sections are arranged at the circumferential position of the inner wall of the convex column. A card slot is used for engaging and fixing the rod, and a through hole is drilled in the middle part of the rod to bury a spring and two steel balls, so that the steel balls on both sides of the rod can be used to spring the spring. It is fixed in the transmission gear 旳 card slot to form a state of simultaneous rotation. In addition, the lower section of the rod is designed as a ratchet, which rotates in conjunction with the adjacent swing gear. When the user presses the lever, the steel ball is locked in the slot of the transmission gear, so that the ratchet of the lower section of the lever can be combined with the transmission swing gear and the crank to form the back and forth movement of the electric fan. On the contrary, when the user pulls When the draw bar is lifted, the steel ball is released from the clamping relationship with the card slot, and the transmission gear is in an idling state. The effect that the upper segment tooth 42 and the lower segment tooth 43 are rotatably provided in the transmission space 11 and can move up and down.

The motor 5 is provided with an output shaft 51, and a worm is provided on the output shaft 51. The worm of the output shaft 51 is inserted into the opening 61 to mesh with each other, and the worm of the output shaft 51 is rotated to drive the coupling. The rod 6 indirectly links the lifting portion 41 to reciprocate from an upper limit position to a lower limit position, so that the upper segment teeth 42 and the lower segment teeth 43 are rotatably disposed in the transmission space 11 and can move up and down.

The over-and-under controller 7 receives a control signal from a control switch for presetting an upper-cut-off frequency 72 or an upper-limit frequency of a current range 71. Cut-off frequency 73 (lower-cut-off frequency), according to the upper cut-off frequency 72 or the lower-cut cut-off frequency 73, a switch that controls the forward and reverse rotation of the supply current of the motor 5 (1. The upper limit of the forward rotation of the motor 5 Turn on the cut-off frequency 72, 2. Turn off the upper limit cut-off frequency 72 for forward rotation of the motor 5, 3. Turn on the lower cut-off frequency 73 for forward rotation of the motor 5, 4. Turn off the lower cut-off frequency 73, 5. Turn on the upper cut-off frequency 72 of the reversal of the motor 5, 6. Turn off the upper cut-off frequency 72 of the reversal of the motor 5, 7. The lower limit cut-off frequency 73 is turned on. 8. The reverse rotation of the motor 5 is turned off. The forward and reverse rotation of the motor 5 corresponds to the reciprocating movement of the lifting portion 41 from the upper limit position to the lower limit position. (Movable stroke) to indirectly link the lifting portion of the transmission gear 4 41 reciprocates from an upper limit position to a lower limit position, so that the upper segment teeth 42 and the lower segment teeth 43 are rotatably provided in the transmission space 11 and can move up and down, so that the present invention can be simple, low cost and energy saving. The method provides high precision for the fan's rotating and swinging head structure to reciprocate up and down.

As shown in FIG. 8, the upper and lower limit controller 7 of the present invention can be used to receive the control signal provided by the control switch to turn or stop, and the time-varying rate of the control signal according to the preset range of the current 71, and the current preset range 71 can be used by the upper and lower limit controller 7 for judgment. The upper and lower limit controller 7 of the present invention is coupled to the current preset range 71 built in, and the purpose is to control the motor 5 according to the upper limit cutoff frequency 72 or the lower limit cutoff frequency 73 of the current preset range 71 described above. The supply current is turned on and off. Specifically, the upper and lower limit controller 7 may be composed of a logic element (AND element, OR element), and may be provided to the motor 5 when receiving any one of the upper limit cutoff frequency 72 or the lower limit cutoff frequency 73. The supply current is turned off. In other words, when neither the upper limit cutoff frequency 72 nor the lower limit cutoff frequency 73 is detected by the upper and lower limit controller 7, it means that the supply current and the speed control are normal, and the supply current can drive the motor 5 to run. Therefore, multiple protection effects can be provided to the motor 5.

In addition, it is worth noting that, in the preferred embodiment of the present invention, the upper and lower limit controller 7 can be coupled to a low voltage protection unit or an over voltage protection unit, and can receive the upper limit cutoff frequency. 72, or the lower limit cut-off frequency immediately stops operation at 73 to achieve the goal of further energy saving of.

The present invention further provides a power protection method according to the aforementioned upper and lower limit controllers 7. The power protection method is used to protect the motor 5. The steps of the method include: generating an over-voltage detection signal when a supply current of one of the motors 5 exceeds an upper limit cut-off frequency 72 of a current preset range 71; the supply current of the motor 5 is lower than the current preset A low-voltage detection signal is generated at one of the lower limit cut-off frequencies 73 of the range 71; the upper and lower limit controllers 7 receive a control signal and control the time-varying rate of the control signal within the current preset range 71; and upon receiving When any one of the upper limit cut-off frequency 72, the lower limit cut-off frequency 73 and the working state detection signal is turned off, the supply current of the motor 5 is turned off.

To sum up, this case is not only innovative in terms of space type, but also enhances the above-mentioned multiple effects over conventional items. It should have fully met the requirements for statutory invention patents that are novel and progressive. Apply for it in accordance with the law and ask your office for approval. This invention patent application is designed to encourage inventions, and it is a matter of virtue.

Claims (2)

An automatic fan swing control device includes: a body, which is connected to an opening to form two connected transmission spaces and a driven space. A bottom of the transmission space forms an accommodation hole and a bottom of the driven space. A socket is formed at the end; a cover is used to seal the opening and a shaft hole is penetrated at a central axis of the transmission space; a driven gear is arranged at the driven space and penetrated by a fixed rod Inserted into the jack; a transmission gear, comprising a lifting section, an upper section of teeth, a lower section of teeth and a bottom, the lifting section penetrates the shaft hole, the upper section of teeth and the lower section of teeth are rotatably provided in the transmission space The motor moves up and down, and its bottom is vertically pivoted to the receiving hole. A motor is provided with an output shaft. The output shaft meshes with the lifting part in space to rotate the output shaft to link the lifting part from an upper limit. Reciprocate from the position to the lower limit position, so that the upper teeth and the lower teeth can move up and down; an upper and lower limit controller receives a control signal to set an upper limit cut-off frequency or lower limit of a current preset range Stop frequency, according to the upper cutoff frequency or the lower cut-off frequency of the supply current control of the reversing switch of the motor. An automatic fan swing control device includes: a body, which is connected to an opening to form two connected transmission spaces and a driven space. A bottom of the transmission space forms an accommodation hole and a bottom of the driven space. A hole is formed at the end; a cover is used to seal the opening, and a shaft hole is penetrated at a central axis of the transmission space; a connecting rod is provided with a shaft at one end above the cover which can be used as a lever It swings, and the other movable end is provided with an opening; a driven gear is arranged in the driven space and is inserted into the socket with a fixed rod; a transmission gear includes a lifting part, an upper gear, A segment tooth and a bottom part, the lifting part penetrates the shaft hole, the top part of the lifting part abuts against the bottom of the connecting rod, the upper segment tooth and the lower segment tooth are rotatably provided in the transmission space to move up and down, and the bottom part thereof A motor is provided with an output shaft; the output shaft is provided with a worm; the worm of the output shaft is inserted into the opening to engage with each other; the output shaft is rotated to drive the connection The lever indirectly links the lift The upper and lower teeth move back and forth between an upper limit position and a lower limit position, so that the upper teeth and the lower teeth can rotatably move up and down; a upper and lower limit controller receives a control signal to cut off an upper limit of a current preset range Frequency or lower limit cut-off frequency, which controls the forward and reverse switch of the supply current according to the upper limit cut-off frequency or the lower limit cut-off frequency.