CN215486749U - Induction exhaust fan - Google Patents
Induction exhaust fan Download PDFInfo
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- CN215486749U CN215486749U CN202121150933.0U CN202121150933U CN215486749U CN 215486749 U CN215486749 U CN 215486749U CN 202121150933 U CN202121150933 U CN 202121150933U CN 215486749 U CN215486749 U CN 215486749U
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- 230000006698 induction Effects 0.000 title abstract description 8
- 238000001514 detection method Methods 0.000 claims abstract description 56
- 230000005855 radiation Effects 0.000 claims abstract description 4
- 239000003990 capacitor Substances 0.000 claims description 73
- 230000000087 stabilizing effect Effects 0.000 claims description 19
- 238000001914 filtration Methods 0.000 claims description 8
- 230000006641 stabilisation Effects 0.000 description 5
- 238000011105 stabilization Methods 0.000 description 5
- 238000009434 installation Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
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Abstract
The utility model discloses an induction exhaust fan, which comprises an air inlet assembly, wherein the air inlet assembly comprises a lamp, and the lamp is fixed on the air inlet assembly; the exhaust assembly is internally provided with a cavity and is provided with an air inlet and an air outlet, and the air inlet assembly is fixed at the air inlet; the fan is provided with an air inlet end and an air outlet end, the fan is fixed in the cavity of the exhaust assembly, the air inlet end is close to the air inlet, and the air outlet end is close to the air outlet; the infrared detection module comprises an infrared detector, the infrared detector is fixed on the air inlet assembly, and the infrared detector is used for detecting external heat radiation; the fan driving module is connected with the main control chip, and the main control chip is connected with the infrared detection module and the fan driving module and used for controlling the fan driving module to work by reading a detection signal of the infrared detection module.
Description
Technical Field
The utility model relates to the field of exhaust fans, in particular to an induction exhaust fan.
Background
At present, most exhaust fans in the market need manual switches, when the humidity is controlled at a set value, a hygrometer needs to be seen, the switch and the power of the exhaust fan are manually adjusted according to the hygrometer, the exhaust fan is inconvenient to use, and in a room with a narrow space, the exhaust fan and a lamp are arranged on a ceiling together, so that the exhaust fan occupies a space, and the exhaust fan and the lamp are not attractive.
SUMMERY OF THE UTILITY MODEL
The utility model aims to at least solve one of the technical problems in the prior art, and therefore, the utility model provides the induction exhaust fan which is integrated with the lamp, saves the installation space, installation cost and installation time, is provided with the switch for inducing the infrared ray of the human body and can be conveniently used.
In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:
according to an embodiment of the first aspect of the present invention, an induction exhaust fan comprises: the air inlet assembly comprises an air inlet structure and a lamp, and the lamp is fixed on the air inlet structure; the exhaust assembly is internally provided with a cavity and is provided with an air inlet and an air outlet, and the air inlet assembly is fixed at the air inlet; the fan is provided with an air inlet end and an air outlet end, the fan is fixed in the cavity, the air inlet end is close to the air inlet, and the air outlet end is close to the air outlet; the infrared detection module comprises an infrared detector, the infrared detector is fixed on the air inlet assembly, and the infrared detector is used for detecting external heat radiation; the fan driving module is connected with the infrared detection module and the fan driving module through the main control chip, and the main control chip is used for controlling the fan driving module to work through reading detection signals of the infrared detection module.
The induction exhaust fan provided by the embodiment of the utility model at least has the following beneficial effects: the automatic control exhaust fan is provided with humidity detection and temperature detection, automatically controls the power of the exhaust fan according to the humidity and the temperature, is provided with human body infrared induction, and controls the exhaust fan to work according to whether a person exists in a detection room.
According to some embodiments of the utility model, the exhaust assembly further comprises a fixing structure provided at least one end of the outer side of the exhaust assembly.
According to some embodiments of the utility model, a power pack is included, the power pack being secured within and/or outside the exhaust assembly.
According to some embodiments of the utility model, the exhaust assembly comprises an air outlet pipe, and the air outlet pipe is detachably communicated with the air outlet.
According to some embodiments of the utility model, the air intake assembly comprises a frame, the air intake structure being disposed in the frame and connected to the frame; the infrared detector is fixed to the frame.
According to some embodiments of the present invention, the infrared detection module includes a first resistor and a second resistor, one end of the first resistor is connected to one end of the second resistor and is connected to the main control chip, the other end of the first resistor is grounded, the other end of the second resistor is connected to a chip, the chip is connected to the infrared detector and is configured to receive a detection signal of the infrared detector and feed the detection signal back to the main control chip through the second resistor, and the main control chip controls the fan driving module to operate through a feedback signal of the infrared detector.
According to some embodiments of the present invention, the infrared detection module includes a voltage stabilization module, the voltage stabilization module includes a first voltage stabilization chip, a first capacitor, a second capacitor, a third capacitor, and a third resistor, an input end of the first voltage stabilization chip is connected to one end of the first capacitor and a power supply, another end of the first capacitor is grounded for filtering, an output end of the first voltage stabilization chip is connected to an input end of the chip through the third resistor, one end of the third resistor is connected to one end of the second capacitor, another end of the third resistor is connected to one end of the third capacitor, and another ends of the second capacitor and the third capacitor are grounded for resistance-capacitance filtering.
According to some embodiments of the present invention, the fan driving module includes a fourth resistor, a fifth resistor, a PNP triode, and a sixth resistor, the main control chip is connected to one end of the fifth resistor and the base of the PNP triode through the fourth resistor, the other end of the fifth resistor is connected to the emitter of the PNP triode and the power supply, and the collector of the PNP triode is connected to one electrode of the fan and is grounded through the sixth resistor.
According to some embodiments of the utility model, the power module comprises a fifth capacitor, a sixth capacitor, a seventh resistor, an eighth resistor and a second voltage stabilizing chip, wherein one end of the seventh resistor and one end of the eighth resistor are connected with each other and are connected with one end of the fifth capacitor and a power supply, the other end of the fifth capacitor is grounded, the other end of the seventh resistor and the other end of the eighth resistor are connected with each other and are connected with an input end of the second voltage stabilizing chip, an output end of the second voltage stabilizing chip is connected with one end of the sixth capacitor, and the other end of the sixth capacitor is grounded.
According to some embodiments of the utility model, the humidity detection device comprises a temperature detection module and a humidity detection module, wherein the temperature detection module comprises a thermistor, a ninth resistor, a tenth resistor and a seventh capacitor, one end of the thermistor is connected with a power supply, the other end of the thermistor is grounded through the tenth resistor, the other end of the thermistor is connected with the main control chip and one end of the seventh capacitor through the ninth resistor, and the other end of the seventh capacitor is grounded; the humidity detection module comprises a humidity-sensitive resistor, an eleventh resistor, a twelfth resistor, a thirteenth resistor and an eighth capacitor, one end of the humidity-sensitive resistor is connected with one ends of the eleventh resistor, the twelfth resistor and the thirteenth resistor, the other end of the humidity-sensitive resistor is connected with the other end of the thirteenth resistor and the main control chip, the other end of the eleventh resistor is connected with the main control chip, the other end of the twelfth resistor is connected with one end of the eighth capacitor and the main control chip, and the other end of the eighth capacitor is grounded; the main control chip controls the fan driving module to work by reading signals of the temperature detection module and the humidity detection module.
Additional aspects and advantages of the utility model will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the utility model.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 is a front view of the present invention;
FIG. 2 is a right side view of the present invention;
FIG. 3 is an exploded view of the present invention;
FIG. 4 is a top view of the present invention;
FIG. 5 is an infrared detection module of the present invention;
FIG. 6 is a fan drive module of the present invention;
FIG. 7 is a power module of the present invention;
FIG. 8 is an environment detection module of the present invention.
Reference numerals: a block 1; a housing 2; an air outlet pipe 3; a lamp 4; an infrared detector 5; an air intake structure 6; a power supply box 7; a fixed structure 8; a centrifugal fan 9; a main board box 10.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention are further described below with reference to the accompanying drawings.
The technical solutions in the embodiments of the present invention will be fully described below, and it should be apparent that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
According to some embodiments, as shown in fig. 1, comprises an air intake assembly and an air exhaust assembly, as shown in fig. 3, comprising a centrifugal fan 9. Wherein, as shown in fig. 4, the air inlet assembly comprises a square frame 1, an air inlet structure 6, a lamp 4 and an infrared detector 5, the air inlet structure 6 is arranged in the square frame 1 and is connected with the inner side wall of the square frame 1, and the air inlet structure 6 is composed of a plurality of strip-shaped air inlets. The lamp 4 is fixed in the air intake structure 6 and exposes a rectangular light emitting surface, and four sides of the light emitting surface are respectively equal in distance to four sides of the corresponding frame 1. The infrared detector 5 is fixed on one side of the frame 1, and a detection surface is exposed and used for detecting the heat radiation of the human body.
According to some embodiments, the exhaust assembly comprises a housing 2 and an air outlet pipe 3, the housing 2 has an air inlet and an air outlet, the air inlet is connected to the frame 1 of the air inlet assembly, and the air inlet structure 6 is communicated with the inside of the housing 2. The centrifugal fan 9 is fixed in the shell 2, the centrifugal fan 9 is provided with an air inlet end and an air outlet end, the air outlet end is arranged at the air outlet, and the air inlet end is communicated with the air inlet. The air outlet pipe 3 is detachably connected with the air outlet.
According to some embodiments, as shown in fig. 1, 2 and 3, the power supply box 7 is fixed at one end of the outer side of the casing 2, and the fixing structure 8 is also fixed at the other end of the outer side of the casing 2 opposite to the fixing structure 8. A main board box 10 is fixed at one end of the inner side of the shell 2.
According to some embodiments, the infrared detection module includes a resistor R1 and a resistor R2, one end of the resistor R1 is connected to the resistor R2 and the main control chip, and the other end of the resistor R1 is grounded, so that when the transmission of an electric signal is turned off, the residual electricity in the circuit is discharged through the resistor R1, and a rapid turn-off function is achieved. The other end of the resistor R2 is connected with a chip IC, the chip IC is connected with two electrodes of the infrared detector 5 and used for receiving a detection signal of the infrared detector 5 and feeding back the detection signal to the main control chip through the resistor R2, and the main control chip controls the fan driving module to work through a feedback signal of the infrared detector 5.
According to some embodiments, the infrared detection module comprises a voltage stabilizing module, the voltage stabilizing module comprises a voltage stabilizing chip U1, a capacitor C1, a capacitor C2, a capacitor C3 and a resistor R3, the input end of the voltage stabilizing chip U1 is connected with one end of a capacitor C1 and a power supply, the other end of the capacitor C1 is grounded for filtering, the output end of the voltage stabilizing chip U1 is connected with the input end of the chip IC through a resistor R3, one end of the resistor R3 is connected with one end of the capacitor C2, the other end of the resistor R3 is connected with one end of the capacitor C3, and the other ends of the capacitor C2 and the capacitor C3 are grounded for resistance-capacitance filtering.
According to some embodiments, as shown in fig. 5, the chip comprises a socket J1 and a plug J2, the other end of a resistor R2 is connected with a pin 3 of the socket J1, a pin 1 of the socket J1 is connected with a power supply, a pin 2 of the socket J1 is connected with a ground point, a pin 1 of the plug J2 is connected with an input end of a voltage stabilizing chip U1, a pin 2 of the plug J2 is connected with a voltage stabilizing chip U1, a capacitor C1, a capacitor C2, a capacitor C3 and a ground point of a chip IC, and a pin 3 of the plug J2 is connected with an output end of the chip IC. The socket J1 and the plug J2 are connected in a plugging mode.
According to some embodiments, the fan driving module comprises a resistor R4, a resistor R5, a PNP triode Q and a resistor R6, the main control chip is connected with one end of the resistor R5 and the base of the PNP triode Q through the resistor R4, the other end of the resistor R5 is connected with the emitter of the PNP triode Q and a power supply, and the collector of the PNP triode Q is connected with one electrode of the fan and is grounded through the resistor R6. The master control chip sends out a modulation signal PWM to control the conduction of the PNP triode Q, when the modulation signal PWM does not exist, the base electrode of the PNP triode Q is at a high level, the PNP triode Q is not conducted, and the motor does not work. When the modulation signal PWM exists, the main control chip further controls the power of the motor by controlling the duty ratio of the modulation signal.
According to some embodiments, the main control chip controls the fan driving module to operate when the infrared detection module detects a human body, and controls the fan driving module to stop operating when the infrared detection module does not detect a human body.
According to some embodiments, as shown in fig. 6, the device comprises a socket J3 and a capacitor C4, wherein one end of a pin 1 of the socket J3 is connected with a power supply through the capacitor C4, the other end of the capacitor C4 is grounded for filtering, a pin 2 of the socket J3 is grounded, and a pin 3 of the socket J3 is connected with a collector of a PNP triode Q. The centrifugal fan 9 is connected to the socket J3 through a plug.
According to some embodiments, the power module comprises a capacitor C5, a capacitor C6, a resistor R7, a resistor R8 and a voltage stabilizing chip U2, wherein one ends of the resistor R7 and the resistor R8 are connected with each other and with one end of the capacitor C5 and a power supply, the other end of the capacitor C5 is grounded, the other ends of the resistor R7 and the resistor R8 are connected with each other and with an input end of the voltage stabilizing chip U2, an output end of the voltage stabilizing chip U2 is connected with one end of a capacitor C6, and the other end of the capacitor C6 is grounded.
According to some embodiments, as shown in fig. 7, the plug J4 is included, pin 1 of the plug J4 is connected to one end of the resistor R7, the resistor R8 and the capacitor C5, and pin 2 of the plug J4 is connected to the ground end of the capacitor C5, the capacitor C6 and the voltage stabilizing chip U2. The power supply module is connected with a direct current power supply through a socket.
According to some embodiments, the environment detection module comprises a temperature detection module and a humidity detection module, the temperature detection module comprises a thermistor RT1, a resistor R9, a resistor R10 and a capacitor C7, one end of the thermistor RT1 is connected with a power supply, the other end of the thermistor RT1 is grounded through a resistor R10, the other end of the thermistor RT1 is connected with one end of a main control chip and one end of a capacitor C7 through a resistor R9, and the other end of the capacitor C7 is grounded. The resistor R9 and the capacitor C7 are used for resistance-capacitance filtering. When the temperature is normal temperature, the resistance value of the thermistor RT1 is large, and after the thermistor RT1 is pulled down by the resistor R10, the main control chip receives a low level signal; when the temperature is higher, the resistance value of the thermistor RT1 is lower, and the main control chip receives the high level and controls the fan driving module to increase the power. The master control chip sends out pulse signal RH _1K + through resistance R11, its receiving terminal is RH _1K-, the master control chip detects pulse signal through resistance R12, when ambient humidity is high, humidity sensitive resistor RH resistance reduces, the master control chip can not detect pulse signal through resistance R12, and control fan drive module work, when ambient humidity is low, humidity sensitive resistor RH resistance risees, the master control chip detects pulse signal through resistance R12, and control fan drive module reduces power. The humidity detection module comprises a humidity-sensitive resistor RH, a resistor R11, a resistor R12, a resistor R13 and a capacitor C8, one end of the humidity-sensitive resistor RH is connected with one end of a resistor R11, one end of a resistor R12 and one end of a resistor R13, the other end of the humidity-sensitive resistor RH is connected with the other end of a resistor R13 and a main control chip, the other end of the resistor R11 is connected with the main control chip, the other end of the resistor R12 is connected with one end of the capacitor C8 and the main control chip, and the other end of the capacitor C8 is grounded. The main control chip controls the fan driving module to work by reading signals of the temperature detection module and the humidity detection module.
In some embodiments, when the infrared detection module does not detect a person and the indoor humidity is higher than a set value, the main control chip controls the centrifugal fan 9 to work through the fan driving module, the centrifugal fan 9 rotates to remove indoor moisture, and when the humidity is lower than the set value, the centrifugal fan 9 stops working; when people are detected to be indoors, the main control chip controls the centrifugal fan 9 to work through the fan driving module; when the indoor temperature is higher than the set temperature, the main control chip increases the power of the centrifugal fan 9 through the fan driving module.
According to some embodiments, as shown in fig. 8, the socket J5 and the plug J6 are included, pin 1 of the socket J5 is connected to the main control chip, pin 2 is connected to the resistor R11, the resistor R12 and the resistor R13, pin 3 is connected to the resistor R9 and the resistor R10, and pin 4 is connected to the +5V power supply. Pin 1 of the plug J6 is connected with pin 2 through a resistor RH, and pin 3 of the plug J6 is connected with pin 4 through a thermistor RT 1. The temperature controller is connected with the socket J5 and the plug J6 to detect the indoor temperature and humidity.
It will be evident to those skilled in the art that the utility model is not limited to the exemplary embodiments described above, but that the present solution is capable of being embodied in other specific forms without departing from the essential characteristics thereof. Accordingly, the embodiments should be considered as exemplary and non-limiting.
Claims (10)
1. An exhaust fan, comprising:
an air intake assembly comprising an air intake structure (6) and a lamp (4), the lamp (4) being secured to the air intake structure (6);
the exhaust assembly is internally provided with a cavity and is provided with an air inlet and an air outlet, and the air inlet assembly is fixed at the air inlet;
the fan is provided with an air inlet end and an air outlet end, the fan is fixed in the cavity, the air inlet end is close to the air inlet, and the air outlet end is close to the air outlet;
the infrared detection module comprises an infrared detector (5), the infrared detector (5) is fixed on the air inlet assembly, and the infrared detector (5) is used for detecting external heat radiation;
the fan driving module is connected with the infrared detection module and the fan driving module through the main control chip, and the main control chip is used for controlling the fan driving module to work through reading detection signals of the infrared detection module.
2. An exhaust fan in accordance with claim 1, wherein: the exhaust assembly comprises a fixing structure (8), wherein the fixing structure (8) is arranged at least one end of the outer side of the exhaust assembly.
3. An exhaust fan in accordance with claim 1, wherein: including a box secured within and/or outside of the exhaust assembly.
4. An exhaust fan in accordance with claim 1, wherein: the exhaust assembly comprises an air outlet pipe (3), and the air outlet pipe (3) is detachably communicated with the air outlet.
5. An exhaust fan in accordance with claim 1, wherein: the air inlet assembly comprises a frame (1), and the air inlet structure (6) is arranged in the frame (1) and is connected with the frame;
the infrared detector (5) is fixed to the frame (1).
6. An exhaust fan in accordance with claim 1, wherein: the infrared detection module comprises a first resistor (R1) and a second resistor (R2), one end of the first resistor (R1) is connected with one end of the second resistor (R2) and is connected with the main control chip, the other end of the first resistor (R1) is grounded, the other end of the second resistor (R2) is connected with the chip (IC), the chip (IC) is connected with the infrared detector (5) to be used for receiving the detection signal of the infrared detector (5) and feeding back the detection signal to the main control chip through the second resistor (R2), and the main control chip is controlled by the feedback signal of the infrared detector (5) to work in the fan driving module.
7. The exhaust fan of claim 6, wherein: the infrared detection module comprises a voltage stabilizing module, the voltage stabilizing module comprises a first voltage stabilizing chip (U1), a first capacitor (C1), a second capacitor (C2), a third capacitor (C3) and a third resistor (R3), one end of the first capacitor (C1) and a power supply are connected to the input end of the first voltage stabilizing chip (U1), the other end of the first capacitor (C1) is grounded and used for filtering, the output end of the first voltage stabilizing chip (U1) is connected with the input end of the chip (IC) through the third resistor (R3), one end of the third resistor (R3) is connected with one end of the second capacitor (C2), the other end of the third capacitor (C3) is connected, and the other ends of the second capacitor (C2) and the third capacitor (C3) are grounded and used for resistance-capacitance filtering.
8. An exhaust fan in accordance with claim 1, wherein: fan drive module includes fourth resistance (R4), fifth resistance (R5), PNP triode (Q), sixth resistance (R6), the master control chip passes through fourth resistance (R4) and connects fifth resistance (R5) one end and PNP triode (Q) base, PNP triode (Q) projecting pole and power are connected to fifth resistance (R5) other end, an electrode of fan is connected to PNP triode (Q) collecting electrode to through sixth resistance (R6) ground connection.
9. An exhaust fan in accordance with claim 1, wherein: the power supply module comprises a fifth capacitor (C5), a sixth capacitor (C6), a seventh resistor (R7), an eighth resistor (R8) and a second voltage-stabilizing chip (U2), wherein one end of the seventh resistor (R7) is connected with one end of the eighth resistor (R8) in an interconnection mode, the fifth capacitor (C5) is connected with one end of a power supply, the other end of the fifth capacitor (C5) is grounded, the other end of the seventh resistor (R7) is connected with the other end of the eighth resistor (R8) in an interconnection mode and connected with the input end of the second voltage-stabilizing chip (U2), the output end of the second voltage-stabilizing chip (U2) is connected with one end of the sixth capacitor (C6), and the other end of the sixth capacitor (C6) is grounded.
10. An exhaust fan in accordance with claim 1, wherein: the environment detection device comprises an environment detection module, the environment detection module comprises a temperature detection module and a humidity detection module, the temperature detection module comprises a thermistor (RT1), a ninth resistor (R9), a tenth resistor (R10) and a seventh capacitor (C7), one end of the thermistor (RT1) is connected with a power supply, the other end of the thermistor is grounded through the tenth resistor (R10), the other end of the thermistor is connected with one ends of the main control chip and the seventh capacitor (C7) through the ninth resistor (R9), and the other end of the seventh capacitor (C7) is grounded;
the humidity detection module comprises a humidity-sensitive Resistor (RH), an eleventh resistor (R11), a twelfth resistor (R12), a thirteenth resistor (R13) and an eighth capacitor (C8), one end of the humidity-sensitive Resistor (RH) is connected with one ends of the eleventh resistor (R11), the twelfth resistor (R12) and the thirteenth resistor (R13), the other end of the humidity-sensitive Resistor (RH) is connected with the other end of the thirteenth resistor (R13) and the main control chip, the other end of the eleventh resistor (R11) is connected with the main control chip, the other end of the twelfth resistor (R12) is connected with one end of the eighth capacitor (C8) and the main control chip, and the other end of the eighth capacitor (C8) is grounded;
the main control chip controls the fan driving module to work by reading signals of the temperature detection module and the humidity detection module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121150933.0U CN215486749U (en) | 2021-05-26 | 2021-05-26 | Induction exhaust fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121150933.0U CN215486749U (en) | 2021-05-26 | 2021-05-26 | Induction exhaust fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215486749U true CN215486749U (en) | 2022-01-11 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121150933.0U Active CN215486749U (en) | 2021-05-26 | 2021-05-26 | Induction exhaust fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215486749U (en) |
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2021
- 2021-05-26 CN CN202121150933.0U patent/CN215486749U/en active Active
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Address after: Room 901, Building 6, Weihe New Science Park, No. 2 Keji Second Road, Xingtan Industrial Zone, Qixing Community, Xingtan Town, Shunde District, Foshan City, Guangdong Province, 528300 Patentee after: Guangdong Wintek Science and Technology Co.,Ltd. Country or region after: China Address before: 528300 residents committee of Luoshui community, Xingtan town, Shunde District, Foshan City, Guangdong Province Patentee before: Guangdong Weinuo Hi Tech Co.,Ltd. Country or region before: China |