CN213064030U - Electric fan capable of automatically adjusting oscillating speed - Google Patents
Electric fan capable of automatically adjusting oscillating speed Download PDFInfo
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- CN213064030U CN213064030U CN202021317630.9U CN202021317630U CN213064030U CN 213064030 U CN213064030 U CN 213064030U CN 202021317630 U CN202021317630 U CN 202021317630U CN 213064030 U CN213064030 U CN 213064030U
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- head
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Abstract
The utility model discloses a but automatically regulated speed electric fan of shaking head, include: when the pyroelectric infrared sensor detects that a human body exists in front of the fan blades, the singlechip controls the oscillating motor to reduce the rotating speed.
Description
Technical Field
The utility model relates to the field of household appliances, in particular to but automatically regulated speed electric fan of shaking head.
Background
Most electric fans have all had the function of shaking the head at present, and on the one hand the electric fan is shaken the head and can be satisfied the user that is located different position and blow, and on the other hand the electric fan is shaken the head and is changed the direction of blowing to can simulate natural wind, however present electric fan is shaken the head most and is shaken with invariable speed, and the speed of shaking the head can't change.
SUMMERY OF THE UTILITY MODEL
The utility model mainly aims at providing a but automatically regulated speed electric fan of shaking head aims at solving the problem that above-mentioned background art mentioned.
In order to achieve the above object, the utility model provides a but automatically regulated speed electric fan of shaking head, include: the fan assembly comprises a shell, fan blades and a fan motor, wherein the shell is provided with an installation cavity, the fan blades and the fan motor are arranged in the installation cavity, and the fan blades are connected with a rotor of the fan motor;
the base is positioned below the shell, and the shell is rotationally connected with the base;
a rotating assembly, the rotating assembly comprising: the oscillating motor is fixedly connected with the base, the eccentric wheel is connected with a rotor of the oscillating motor, one end of the connecting rod is connected with the eccentric wheel through the sliding pin, and the other end of the connecting rod is connected with the shell through the sliding pin;
the control unit, the control unit includes singlechip, the motor speed governing module of shaking the head, response module, the singlechip with the motor speed governing module electricity of shaking the head is connected, the motor speed governing module of shaking the head with the motor electricity of shaking the head is connected, the motor speed governing module of shaking the head is used for receiving the speed instruction of shaking the head of singlechip and adjusts the speed of shaking the head of the motor of shaking the head, response module includes pyroelectric infrared sensor, pyroelectric infrared sensor with the singlechip electricity is connected, pyroelectric infrared sensor is located the outside of casing, pyroelectric infrared sensor with the casing is connected, pyroelectric infrared sensor orientation the air-out direction of flabellum, pyroelectric infrared sensor is used for detecting human body signal to with this signal transmission extremely the singlechip.
Optionally, the control unit further includes a fan motor speed regulation module, an input end of the fan motor speed regulation module is electrically connected to the single chip microcomputer, an output end of the fan motor speed regulation module is connected to the fan motor, and the fan motor speed regulation module is configured to receive a wind speed instruction from the single chip microcomputer and control the fan motor to regulate a wind speed.
Optionally, the control unit further comprises a current limiting module, and a current output end of the current limiting module is connected with a current input end of the oscillating motor.
Optionally, the electric fan capable of automatically adjusting the shaking speed further comprises a fresnel lens, and the fresnel lens is located in front of the sensing window of the pyroelectric infrared sensor.
Optionally, the electric fan capable of automatically adjusting the oscillating speed further comprises a reduction gearbox, the reduction gearbox is located between the oscillating motor and the eccentric wheel, and the reduction gearbox is connected with the oscillating motor.
Optionally, the electric fan capable of automatically adjusting the shaking speed further comprises an infrared remote control receiver, and the infrared remote control receiver is electrically connected with the single chip microcomputer.
The technical proposal of the utility model is that the eccentric wheel, the connecting rod and the sliding pin are arranged, the eccentric wheel is connected with the shell through the connecting rod and the sliding pin, the eccentric wheel rotates and is transmitted to the shell through the connecting rod, thereby the shell swings to realize the shaking function of the fan blade, the eccentric wheel can always rotate towards one direction to realize the shaking of the shell, the problem of turning is not needed to be considered, so the shaking motor can adopt a direct current brush motor with lower cost to save the cost, on the other hand, the singlechip and the shaking motor speed regulation module are arranged, thereby the singlechip can send a speed reduction or acceleration instruction to the shaking motor speed regulation module to further regulate the rotating speed of the shaking motor, thereby realizing the regulation of the shaking speed, thereby simulating more natural wind, and the pyroelectric infrared sensor is arranged outside the shell to detect whether a human body exists in front of the fan blade, therefore, according to the detection signal of the pyroelectric infrared sensor, when the fan blades face the human body, the oscillation speed is automatically adjusted by the single chip microcomputer.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
FIG. 1 is a schematic structural diagram of an embodiment of an electric fan with an automatically adjustable oscillating speed according to the present invention;
FIG. 2 is a block diagram of an embodiment of the electric fan with automatically adjustable oscillating speed according to the present invention;
fig. 3 is a circuit diagram of an embodiment of the electric fan with automatically adjustable oscillating speed according to the present invention.
The reference numbers illustrate:
| reference numerals | Name (R) | Reference numerals | Name (R) |
| 100 | |
110 | |
| 120 | Connecting |
121 | |
| 200 | |
210 | |
| 300 | Oscillating |
310 | |
| 400 | |
410 | Connecting |
| 420 | Sliding pin | 500 | Pyroelectric |
| 510 | |
600 | |
| 610 | Supporting |
620 | Mounting table |
The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that, if directional indications (such as upper, lower, left, right, front and rear … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are changed accordingly.
In addition, if there is a description relating to "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.
The utility model provides a but automatically regulated speed electric fan of shaking head.
In the embodiment of the present invention, as shown in fig. 1, the electric fan with automatically adjustable oscillating speed comprises:
the fan assembly comprises a shell 100, fan blades and a fan motor 200, wherein the shell 100 is provided with an installation cavity 110, the fan blades and the fan motor 200 are arranged in the installation cavity 110, and the fan blades are connected with a rotor of the fan motor 200;
a base 600, wherein the base 600 is located below the housing 100, and the housing 100 is rotatably connected with the base 600;
a rotating assembly, the rotating assembly comprising: the oscillating motor 300 is fixedly connected with the base 600, the eccentric wheel 400 is connected with a rotor of the oscillating motor 300, one end of the connecting rod 410 is connected with the eccentric wheel 400 through the sliding pin 420, and the other end of the connecting rod 410 is connected with the shell 100 through the sliding pin 420;
a control unit, which comprises a singlechip 10, a swing motor speed regulation module 30 and an induction module 50, the single chip microcomputer 10 is electrically connected with the oscillating motor speed regulating module 30, the oscillating motor speed regulating module 30 is electrically connected with the oscillating motor 300, the oscillating motor speed regulating module 30 is used for receiving the oscillating speed instruction of the single chip microcomputer 10 and regulating the oscillating speed of the oscillating motor 300, the sensing module 50 comprises a pyroelectric infrared sensor 500, the pyroelectric infrared sensor 500 is electrically connected with the single chip microcomputer 10, the pyroelectric infrared sensor 500 is located at the outer side of the case 100, the pyroelectric infrared sensor 500 is connected with the case 100, the pyroelectric infrared sensor 500 faces the air outlet direction of the fan blade, and the pyroelectric infrared sensor 500 is used for detecting a human body signal and transmitting the signal to the single chip microcomputer 10.
Specifically, the casing 100 is located above the base 600, a support shaft 610 is arranged between the base 600 and the casing 100, a connecting portion 120 is arranged below the casing 100, the connecting portion 120 is provided with a rotation hole 121, one end of the support shaft 610 is arranged in the rotation hole 121, the other end of the support shaft is fixedly connected with the base 600, the fan motor 200 and the fan blades are both arranged in the installation cavity 110 in the casing 100, and the fan blades are connected with the rotor of the fan motor 200; be equipped with mount table 620 in the position that support shaft 610 is close to casing 100, the rear side of support shaft 610 is located to mount table 620, oscillating motor 300 is located on mount table 620, oscillating motor 300 adopts the direct current to have the brush motor, set up eccentric 400 on oscillating motor 300's the rotor, connecting rod 410's both ends set up a slip round pin post 420 respectively, be connected with eccentric 400 and casing 100's rear end respectively through slip round pin post 420, after oscillating motor 300 circular telegram work, oscillating motor 300 drives eccentric 400 and rotates, eccentric 400 drives casing 100 through connecting rod 410 and rotates, the flabellum that lies in casing 100 then can rotate along with casing 100.
Further, referring to fig. 2 and fig. 3, the electric fan capable of automatically adjusting the oscillating speed further includes a power transforming module 20, an input end of the power adjusting module is connected to an external power source, and outputs voltages of 5V, 12V, and 24V through a filtering and voltage-reducing circuit; the model of the singlechip 10U1 is STM8S003F, the oscillating motor 300 adopts a direct current brush motor P1, a reduction box 310 is arranged on the oscillating motor 300 to reduce the rotating speed and increase the torque, a voltage input pin 9 of the singlechip 10 is connected with a 5V voltage output end of the power transformation module 20, and a pin 7 and a pin 8 of the singlechip are grounded; the oscillating motor speed regulating module 30 adopts an N-channel MOS tube Q1 with the model of A03400, the grid electrode of the MOS tube is connected with an oscillating speed control signal output pin 1 of the singlechip 10, the source electrode of the MOS tube is connected with a pin 2 of the oscillating motor 300, and the drain electrode of the MOS tube is grounded; a voltage input pin 1 of the direct current brush motor is connected with a 12V output end of a power supply transformation module 20; the model of a pyroelectric infrared sensor 500SN1 in the induction module 50 is D203S, the voltage input end of the pyroelectric infrared sensor 500 is connected with the 5V output end of the power transformation module 20, and the signal output end of the pyroelectric infrared sensor 500 is connected with the signal receiving pin 20 of the single chip microcomputer 10 after passing through an amplifying circuit; when the electric fan can automatically adjust the shaking speed to shake the head, the pyroelectric infrared sensor 500 positioned in front of the shell 100 detects whether a person exists in the direction of the fan blades, when the pyroelectric sensor detects that a person exists in the current direction, the human body signal is converted into an electric signal to be transmitted to the single chip microcomputer 10, and after the single chip microcomputer 10 receives the human body signal, the PMW deceleration signal is sent to the MOS tube to control the shaking motor 300 to slow down the shaking speed; when the pyroelectric infrared sensor 500 does not detect a human body signal, the single chip microcomputer 10 controls the oscillating motor 300 to increase the rotating speed of the oscillating motor, and the oscillating speed is increased.
Further, the fan motor speed regulation module 40 is provided with a chip U2, a switching signal receiving pin 1 of the chip U2 is connected with a pin 13 of the single chip microcomputer 10, a rotating speed signal receiving pin 2 of the chip U2 is connected with a pin 14 of the single chip microcomputer 10, a voltage input pin of the chip U2 is connected with a 24V output end of the power transformation module 20, and a pin 4, a pin 5, and a pin 6 of the chip U2 are respectively connected with a pin 1, a pin 2, and a pin 3 of the fan motor 200.
The utility model discloses still be equipped with four kinds of modes of shaking the head:
in the first mode, the single chip microcomputer 10 does not output a rotating speed signal to the oscillating motor 300;
in the second mode, the head is shaken at a low speed, and the PWM duty ratio of a rotating speed signal output to the head shaking motor 300 by the singlechip 10 is 30 percent;
in the mode three high speed head shaking, the PWM duty ratio of a rotating speed signal output by the singlechip 10 to the head shaking motor 300 is 100%, and when the singlechip 10 receives a human body signal sent by the pyroelectric infrared sensor 500, the PWM duty ratio is reduced to 30%;
in the mode four, in the natural wind mode, the PWM duty ratio of the rotation speed signal output from the single chip microcomputer 10 to the fan motor 200 is gradually increased from 10% to 50% and then gradually decreased to 10%, and the cycle is performed, and meanwhile, the PWM duty ratio of the rotation speed signal output from the single chip microcomputer 10 to the oscillating motor 300 is gradually increased from 30% to 100% and then gradually decreased to 30%, and the cycle is performed.
Through setting up singlechip 10, fan motor speed governing module 40 and the motor speed governing module 30 of shaking the head, can carry out different wind speeds and the speed combination of shaking the head to simulate out and press close to true natural wind more, through setting up response module 50, automatic reduction speed of shaking the head when singlechip 10 receives human body signal, thereby increase user's the time of blowing, improve the utilization ratio that the flabellum was bloied.
Further, the control unit also comprises a current limiting module, the current limiting module is provided with a triode Q1, a collector of the triode is connected with a 12V output end of the power transformation module 20, an emitter of the triode is connected with a voltage input end of the oscillating motor 300, a base of the triode is grounded, when the load current is less than 0.9A, the triode works in a saturated state, the emitter outputs approximately constant voltage between 9.7V and 11.5V, when the load current is increased to 0.9A, the working state of the triode is linear amplification, and the emitter outputs constant current of 0.9A, so that the maximum input current of the oscillating current is controlled to be 0.9A, and the phenomenon that internal components are burnt out due to the fact that the current is increased when the fan is accidentally stuck is avoided.
Further, the pyroelectric human body infrared sensor is sensitive to a moving human body and insensitive to a static or slowly moving human body, and a curtain type Fresnel lens 510 is additionally arranged in front of the pyroelectric human body infrared sensor, so that the sensing range can be limited within a specific angle, the sensing sensitivity can be greatly improved within the range, and the pyroelectric human body infrared sensor is not influenced by the human body outside the range. This scheme adopts a human infrared sensor of pyroelectric and a curtain formula fresnel lens 510 and signal amplification circuit, constitutes a human response unit, again this human response unit fixed mounting in fan assembly's dead ahead, and when fan assembly rotated, the relative user of human response unit was the motion to can improve response module 50's sensitivity and degree of accuracy.
The infrared remote control receiver 60RM1 adopted in this embodiment is in model VS0038, a voltage input pin 1 of the infrared remote control receiver 60 is connected with a 5V output end of the power transformer module 20, a pin 2 is grounded, a pin 3 is connected with a pin 19 of the single chip microcomputer 10, after receiving a control signal of a user, the infrared remote control receiver 60 transmits the control signal to the single chip microcomputer, and the single chip microcomputer 10 performs corresponding control on the oscillating motor 300 and the fan motor 200 according to the control signal. The infrared remote control receiver 60 can control the electric fan with the automatically adjustable oscillating speed through infrared remote control by a user, so that the electric fan is convenient to use.
The utility model discloses technical scheme sets up singlechip 10 through the adoption, the motor speed governing module 30 of shaking the head, fan motor speed governing module 40 can simulate the combination that can not wind speed and the speed of shaking the head, thereby simulate more real natural wind, through setting up pyroelectric infrared sensor 500, can detect whether there is the human body towards of fan, when the human body exists, the speed of shaking the head that slows down through singlechip 10 control motor 300 of shaking the head, thereby improve the air-out utilization ratio, can effectively avoid the fan to die because of unexpected card and cause the inner member to burn out through setting up current-limiting circuit, use through setting up infrared remote control receiver 60 convenience of customers, it is more convenient to operate.
The above only is the preferred embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structure changes made by the contents of the specification and the drawings under the inventive concept of the present invention, or the direct/indirect application in other related technical fields are included in the patent protection scope of the present invention.
Claims (6)
1. The utility model provides a but automatically regulated speed electric fan of shaking head which characterized in that includes:
the fan assembly comprises a shell, fan blades and a fan motor, wherein the shell is provided with an installation cavity, the fan blades and the fan motor are arranged in the installation cavity, and the fan blades are connected with a rotor of the fan motor;
the base is positioned below the shell, and the shell is rotationally connected with the base;
a rotating assembly, the rotating assembly comprising: the oscillating motor is fixedly connected with the base, the eccentric wheel is connected with a rotor of the oscillating motor, one end of the connecting rod is connected with the eccentric wheel through the sliding pin, and the other end of the connecting rod is connected with the shell through the sliding pin;
the control unit, the control unit includes singlechip, the motor speed governing module of shaking the head, response module, the singlechip with the motor speed governing module electricity of shaking the head is connected, the motor speed governing module of shaking the head with the motor electricity of shaking the head is connected, the motor speed governing module of shaking the head is used for receiving the speed instruction of shaking the head of singlechip and adjusts the speed of shaking the head of the motor of shaking the head, response module includes pyroelectric infrared sensor, pyroelectric infrared sensor with the singlechip electricity is connected, pyroelectric infrared sensor is located the outside of casing, pyroelectric infrared sensor with the casing is connected, pyroelectric infrared sensor orientation the air-out direction of flabellum, pyroelectric infrared sensor is used for detecting human body signal to with this signal transmission extremely the singlechip.
2. The automatically adjustable oscillating speed electric fan according to claim 1, wherein the control unit further comprises a fan motor speed adjusting module, an input end of the fan motor speed adjusting module is electrically connected to the single chip microcomputer, an output end of the fan motor speed adjusting module is connected to the fan motor, and the fan motor speed adjusting module is configured to receive a wind speed command from the single chip microcomputer and control the fan motor to adjust a wind speed.
3. The automatically adjustable oscillating speed electric fan according to claim 1, wherein said control unit further comprises a current limiting module, a current output of said current limiting module being connected to a current input of said oscillating motor.
4. The automatically adjustable oscillating speed electric fan according to claim 1, further comprising a fresnel lens located in front of the pyroelectric infrared sensor sensing window.
5. The automatically adjustable oscillating speed electric fan according to claim 1, further comprising a reduction gearbox between said oscillating motor and said eccentric wheel, said reduction gearbox being connected to said oscillating motor.
6. The automatically adjustable oscillating speed electric fan according to any one of claims 1 to 5, further comprising an infrared remote control receiver electrically connected to said single chip microcomputer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021317630.9U CN213064030U (en) | 2020-07-08 | 2020-07-08 | Electric fan capable of automatically adjusting oscillating speed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021317630.9U CN213064030U (en) | 2020-07-08 | 2020-07-08 | Electric fan capable of automatically adjusting oscillating speed |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213064030U true CN213064030U (en) | 2021-04-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021317630.9U Active CN213064030U (en) | 2020-07-08 | 2020-07-08 | Electric fan capable of automatically adjusting oscillating speed |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213064030U (en) |
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2020
- 2020-07-08 CN CN202021317630.9U patent/CN213064030U/en active Active
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