CN219176595U - Small fan with temperature sensing and automatic control functions - Google Patents
Small fan with temperature sensing and automatic control functions Download PDFInfo
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- CN219176595U CN219176595U CN202222757036.7U CN202222757036U CN219176595U CN 219176595 U CN219176595 U CN 219176595U CN 202222757036 U CN202222757036 U CN 202222757036U CN 219176595 U CN219176595 U CN 219176595U
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- fan
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- handle
- effect tube
- thermistor
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- 230000006870 function Effects 0.000 title abstract description 12
- 230000005669 field effect Effects 0.000 claims abstract description 37
- 230000001105 regulatory effect Effects 0.000 abstract description 4
- 241000883990 Flabellum Species 0.000 abstract 2
- 230000008447 perception Effects 0.000 abstract 1
- 230000003321 amplification Effects 0.000 description 2
- 239000003990 capacitor Substances 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000003199 nucleic acid amplification method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model discloses a small fan with a temperature sensing and automatic control function, which belongs to the technical field of fans and comprises a fan frame, a handle and a fan main body assembled in the fan frame, wherein a battery groove is arranged in the handle, a battery is filled in the battery groove to supply power to the fan main body, a temperature control intelligent system consisting of a field effect tube, an adjustable potentiometer and a thermistor is also arranged in the handle, and the temperature control intelligent system is connected with the battery groove and the fan main body through lines. Through the temperature control intelligent system that field effect transistor, adjustable potentiometer and thermistor that set up in the handle are constituteed, thereby utilize temperature control intelligent system can make little fan automatic perception ambient temperature automatically regulated fan's wind-force size, realize the temperature sensing automatic control function of fan, design the flabellum of fan into can telescopic structure, when the fan rotates fast, inertia impels the flexible leaf to stretch out from the spout of original fan, and then increase the length of flabellum and improve the amount of wind.
Description
Technical Field
The utility model belongs to the technical field of fans, and particularly relates to a small fan with a temperature sensing and automatic control function.
Background
The fan is a household appliance which utilizes a motor to drive fan blades to rotate so as to accelerate air circulation, and is mainly used for cooling and relieving summer heat and circulating air, but because of higher efficiency, the fan is large in length, volume and weight and inconvenient to carry, so that a small fan is designed for meeting the living needs of people, and the small fan is small in size, convenient to carry and is often used as one of necessary tools for traveling in summer.
The structure of the existing small fan is the same as that of a common fan, the existing small fan also has a speed regulating function when in use, and the purpose of controlling wind power is achieved by controlling the rotation speed of fan blades through speed regulation.
Disclosure of Invention
Aiming at the problem that the existing small fan speed regulating function is manually regulated and cannot flexibly control the wind power according to the temperature, the utility model provides the small fan with the temperature sensing automatic control function, and a temperature sensing control system is formed by a thermistor, so that the small fan can automatically control the wind power according to the ambient temperature.
In order to solve the problems, the utility model adopts the following technical scheme.
The utility model provides a little fan with temperature sensing automatic control function, includes fan frame, handle and assembles the fan main part in the fan frame is inside, handle internally mounted has the battery jar, and the battery is filled in the battery jar and is supplied power for the fan main part the inside control by temperature change intelligent system that still is provided with field effect tube, adjustable potentiometer and thermistor constitution simultaneously of handle, and control by temperature change intelligent system and battery jar and fan main part between the line connection.
Preferably, the thermistor is embedded on the front surface of the handle, two pins of the thermistor are connected with two pins of three pins of the field effect tube, the adjustable potentiometer is attached to the front surface of the field effect tube, two pins of the adjustable potentiometer are connected to pins at two ends of the field effect tube, and one pin of the adjustable potentiometer and one pin of the thermistor are connected to one pin of the field effect tube together.
Preferably, the negative electrode of the fan main body is connected with the source electrode of the field effect tube, and the positive electrode of the battery groove is connected with one end of the field effect tube.
Preferably, the adjustable potentiometer is a pull-down resistor of the field effect transistor, the thermistor is used as a pull-up resistor of the grid electrode of the field effect transistor, and the pull-down resistor of the adjustable potentiometer and the pull-up resistor of the thermistor supply power for the grid electrode of the field effect transistor.
Preferably, the fan main body comprises a driver and a triangular connecting sheet connected with the output end of the driver, fan blades are fixedly arranged on the triangular connecting sheet through screws, sliding grooves are formed in the front surfaces of the fan blades, and telescopic blades are connected in the sliding grooves in a sliding mode.
Preferably, a loop bar and a connecting rod movably connected to the loop bar are assembled in the sliding groove, the loop bar is fixed at the bottom of the sliding groove, meanwhile, the connecting rod is connected with the tail end of the telescopic leaf, a tension spring is assembled in the loop bar, one end of the tension spring is fixed in the loop bar, and the other end of the tension spring is connected with the connecting rod.
Preferably, a switch connected with an internal circuit is arranged at the upper end of one side of the handle, a charging port is arranged below the switch at the side surface of the handle, a pair of attaching pieces are arranged on the lower surface of the fan frame, a connecting piece is correspondingly arranged at the center of the upper surface of the handle, and the attaching pieces are attached to the connecting piece in a part of the connecting piece and are connected through a bolt group.
Advantageous effects
Compared with the prior art, the utility model has the beneficial effects that:
(1) According to the utility model, through the temperature control intelligent system composed of the field effect tube, the adjustable potentiometer and the thermistor arranged in the handle, the small fan can automatically sense the ambient temperature by using the temperature control intelligent system, so that the wind power of the fan can be automatically adjusted, the temperature sensing and automatic control functions of the fan are realized, and the principle of the temperature control intelligent system is briefly explained: the temperature coefficient type thermistor is additionally arranged in a circuit of the fan, the resistance value of the temperature coefficient type thermistor is reduced along with the increase of temperature, so that in the circuit of the whole fan, when the ambient temperature is higher, the resistance value of the thermistor is reduced, the current flow of the whole circuit is increased, the voltage of the fan is correspondingly increased, the rotating speed of the fan is increased, the wind power of the fan is relatively increased, the temperature is reduced, the resistance of the thermistor is increased, the current of the whole circuit is reduced, the rotating speed of the fan is relatively reduced, the arranged field effect transistor can be applied to circuit amplification, and the coupling capacitor can be reduced in capacity without using an electrolytic capacitor due to the high input impedance of the field effect transistor amplifier, and the adjustable potentiometer is a pull-down resistor of the field effect transistor and can be adjusted to a proper resistance value according to requirements for adjusting the current voltage.
(2) In the utility model, the temperature control intelligent system can control the rotating speed of the fan according to the surrounding temperature of the fan so as to adjust the wind speed, so that in order to further match the system, the fan blade of the fan is designed to be of a telescopic structure, the original fan is provided with a chute, the telescopic blade is movably inserted into the chute of the original fan, meanwhile, a sleeve rod is arranged in the chute of the original fan, the tail end of the telescopic blade is connected with a connecting rod, the connecting rod is movably inserted into the sleeve rod, and the connecting rod is connected with the sleeve rod by a tension spring.
Drawings
FIG. 1 is a schematic view of the appearance of a small fan according to the present utility model;
FIG. 2 is a schematic view of the internal structure of the fan frame according to the present utility model;
FIG. 3 is a schematic view of a fan blade according to the present utility model;
FIG. 4 is a schematic diagram of a temperature sensing self-control structure in the present utility model;
FIG. 5 is a circuit diagram of a temperature sensing automatic control circuit in the present utility model.
The correspondence between the reference numerals and the component names in the drawings is as follows: 1. a fan frame; 2. a switch; 3. a charging port; 4. a handle; 5. a thermistor; 6. a connecting sheet; 7. a fan main body; 8. a fan blade; 9. a triangular connecting sheet; 10. a telescoping leaf; 11. a tension spring; 12. a connecting rod; 13. a loop bar; 14. a chute; 15. a field effect transistor; 16. an adjustable potentiometer; 17. and a battery jar.
Detailed Description
The utility model is further described below in connection with specific embodiments.
The small fan with the temperature sensing automatic control function provided in fig. 1 comprises a fan frame 1 used for forming the small fan, a handle 4 and a fan main body 7 assembled in the fan frame 1, wherein a battery groove 17 used for installing a battery is arranged in the handle 4, the battery groove 17 is filled with the battery to supply power for the fan main body 7, a temperature control intelligent system consisting of a field effect tube 15, an adjustable potentiometer 16 and a thermistor 5 is also arranged in the handle 4, the temperature control intelligent system can enable the small fan to automatically sense the ambient temperature so as to automatically adjust the wind power of the fan, the temperature sensing automatic control function of the fan is realized, and a circuit between the temperature control intelligent system and the battery groove 17 and the fan main body 7 is connected to form a current path.
In fig. 4, two pins of the thermistor 5 are connected with two pins of three pins of the field effect tube 15, the adjustable potentiometer 16 is attached to the front surface of the field effect tube 15, two pins of the adjustable potentiometer 16 are connected to pins at two ends of the field effect tube 15, one pin of the adjustable potentiometer 16 and one pin of the thermistor 5 are connected to one pin of the field effect tube 15 together, and the connection mode of the specific components of the temperature control intelligent system is that: the thermistor 5 is embedded on the front surface of the handle 4 so as to quickly sense the ambient temperature around the small fan, the cathode of the fan main body 7 is connected with the source of the field effect tube 15, the anode of the battery groove 17 is connected with one end of the field effect tube 15, the adjustable potentiometer 16 is a pull-down resistor of the field effect tube 15, the thermistor 5 is used as a pull-up resistor of the grid of the field effect tube 15, the pull-down resistor of the adjustable potentiometer 16 and the pull-up resistor of the thermistor 5 supply power for the grid of the field effect tube 15, the thermistor 5 is a temperature coefficient type thermistor, the resistance value of the thermistor is reduced along with the increase of the temperature, so that in the circuit of the whole fan, the resistance value of the thermistor 5 is reduced when the ambient temperature is higher, the current flow of the whole circuit is increased, the voltage of the fan is correspondingly increased, the rotating speed of the fan is increased, the wind power of the fan is correspondingly increased, the temperature is inversely reduced, the resistance of the whole circuit is increased, the set up resistor 15 can be applied to circuit amplification, the resistor 16 is used as the pull-down resistor 15 is required, and the current can be adjusted to be properly to be adjusted to be high according to the requirement.
In fig. 1 and 3, the fan body 7 includes a driver and a triangular connection piece 9 connected to the output end of the driver, the triangular connection piece 9 is fixedly provided with a fan blade 8 through a screw, the fan blade 8 is fixed on the driver through the triangular connection piece 9, a chute 14 is provided on the front surface of the fan blade 8, and a telescopic blade 10 is slidably connected in the chute 14 so as to increase the length of the fan blade 8, and the telescopic blade 10 is thrown out from the chute 14 when the fan blade 8 rotates at a high speed, so that the length of the fan blade 8 is increased to make the air volume larger.
In fig. 1 and 3, a sleeve rod 13 and a connecting rod 12 movably connected to the sleeve rod 13 are assembled in a chute 14, the sleeve rod 13 is fixed at the bottom of the chute 14, meanwhile, the connecting rod 12 is connected with the tail end of a telescopic blade 10, a tension spring 11 is assembled in the sleeve rod 13, one end of the tension spring 11 is fixed in the sleeve rod 13, meanwhile, the other end of the tension spring 11 is connected with the connecting rod 12, when a temperature control intelligent system controls a fan to rotate rapidly, the telescopic blade 10 is driven to extend out of the chute 14 of the fan blade 8 due to the fact that the inertia of the fan blade 8 is larger than the tension of the tension spring 11, the length of the fan blade 8 is further increased, the larger the air volume generated when the diameter of the fan blade 8 is larger is matched with the rotating speed of the fan blade 8, the air volume of the small fan is further improved remarkably, and when the rotating speed of the fan is slower, the inertia of the fan blade 8 is smaller than the tension of the tension spring 11, the air volume of the telescopic blade 10 is retracted into the chute 14.
In fig. 1, a switch 2 connected with an internal circuit is arranged at the upper end of one side of a handle 4, the switch 2 is utilized to control the circuit to open and close, a charging port 3 for charging a battery of a battery groove 17 is arranged below the switch 2 at the side surface of the handle 4, a pair of attaching pieces 6 are arranged on the lower surface of a fan frame 1, a connecting piece is correspondingly arranged at the center of the upper surface of the handle 4, the attaching pieces 6 are attached to the connecting piece, the attaching pieces are connected through a bolt group, the fan frame 1 can be manually pulled by utilizing the attaching pieces 6 and the connecting piece, and then the angle of the fan frame is adjusted.
The foregoing is a further elaboration of the present utility model in connection with the detailed description, and it is not intended that the utility model be limited to the specific embodiments shown, but rather that a number of simple deductions or substitutions be made by one of ordinary skill in the art without departing from the spirit of the utility model, should be considered as falling within the scope of the utility model as defined in the appended claims.
Claims (7)
1. The utility model provides a little fan with temperature sensing automatic control function, includes fan frame (1), handle (4) and assembles fan main part (7) in fan frame (1) inside, its characterized in that:
the novel electric fan is characterized in that a battery groove (17) is formed in the handle (4), a battery is filled in the battery groove (17) to supply power to the fan main body (7), a temperature control intelligent system consisting of a field effect tube (15), an adjustable potentiometer (16) and a thermistor (5) is also arranged in the handle (4), and the temperature control intelligent system is connected with the battery groove (17) and the fan main body (7) through a circuit.
2. The small fan with temperature sensing and automatic control function according to claim 1, wherein: the thermistor (5) is embedded on the front surface of the handle (4), two pins of the thermistor (5) are connected with two pins of three pins of the field effect tube (15), the adjustable potentiometer (16) is attached to the front surface of the field effect tube (15), two pins of the adjustable potentiometer (16) are connected to pins at two ends of the field effect tube (15), and one pin of the adjustable potentiometer (16) and one pin of the thermistor (5) are connected to one pin of the field effect tube (15) together.
3. The small fan with temperature sensing and automatic control function according to claim 1, wherein: the negative electrode of the fan main body (7) is connected with the source electrode of the field effect tube (15), and the positive electrode of the battery groove (17) is connected with one end of the field effect tube (15).
4. The small fan with temperature sensing and automatic control function according to claim 1, wherein: the adjustable potentiometer (16) is a pull-down resistor of the field effect tube (15), the thermistor (5) is used as a pull-up resistor of the grid electrode of the field effect tube (15), and the pull-down resistor of the adjustable potentiometer (16) and the pull-up resistor of the thermistor (5) supply power for the grid electrode of the field effect tube (15).
5. The small fan with temperature sensing and automatic control function according to claim 1, wherein: the fan body (7) comprises a driver and a triangular connecting sheet (9) connected with the output end of the driver, fan blades (8) are fixedly arranged on the triangular connecting sheet (9) through screws, sliding grooves (14) are formed in the front surfaces of the fan blades (8), and telescopic blades (10) are connected in the sliding grooves (14) in a sliding mode.
6. The small fan with temperature sensing and automatic control function according to claim 5, wherein: the sliding chute (14) is internally provided with a loop bar (13) and a connecting rod (12) movably connected to the loop bar (13), the loop bar (13) is fixed at the bottom of the sliding chute (14), meanwhile, the connecting rod (12) is connected with the tail end of the telescopic leaf (10), the loop bar (13) is internally provided with a tension spring (11), one end of the tension spring (11) is fixed in the loop bar (13), and meanwhile, the other end of the tension spring (11) is connected with the connecting rod (12).
7. The small fan with temperature sensing and automatic control function according to claim 1, wherein: the utility model discloses a battery charger is characterized in that a switch (2) connected with an internal circuit is arranged at the upper end of one side of a handle (4), a charging port (3) is arranged below the switch (2) on the side surface of the handle (4) at the same time, a pair of attaching pieces (6) are arranged on the lower surface of a fan frame (1), a connecting piece is arranged at the center of the upper surface of the handle (4) correspondingly, and the attaching pieces (6) are attached to the connecting piece album and are connected through a bolt group.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222757036.7U CN219176595U (en) | 2022-10-19 | 2022-10-19 | Small fan with temperature sensing and automatic control functions |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222757036.7U CN219176595U (en) | 2022-10-19 | 2022-10-19 | Small fan with temperature sensing and automatic control functions |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219176595U true CN219176595U (en) | 2023-06-13 |
Family
ID=86675392
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222757036.7U Expired - Fee Related CN219176595U (en) | 2022-10-19 | 2022-10-19 | Small fan with temperature sensing and automatic control functions |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219176595U (en) |
-
2022
- 2022-10-19 CN CN202222757036.7U patent/CN219176595U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20230613 |