TWM502810U - Ventilator with delay switching function - Google Patents

Description

Ventilation fan with delay switch function

The present invention relates to a ventilating fan having a delay switch function, and more particularly to a ventilating fan provided with a delay switch module to provide a predetermined delay switching function.

Please refer to a conventional ventilating fan 9 shown in FIG. 1 , which includes a base 91 , a driving device 92 , an impeller 93 , a casing 94 , a cover 95 and a channel connector 96 . The driving device 92 is disposed on the base 91. The impeller 93 is coupled to the driving device 92 and driven by the driving device 92. The housing 94 is configured to receive the impeller 93 and combine with the base 91. The cover 95 and the channel connector 96 are respectively assembled with the housing 94. Thereby, the driving device 92 can drive the impeller 93 to rotate, introducing air from the outside of the cover 95, thereby forming an air flow and blowing out from the passage connector 96 to achieve a ventilation function. An embodiment of the conventional ventilating fan 9 has been disclosed in the "Ventilation Device" patent of the Republic of China Patent Publication No. I393846.

The conventional ventilation fan 9 can be installed in a closed space such as a toilet, a bathroom, an oven or a steam room to generate a ventilation function during operation to remove air in the sealed space, thereby achieving an air exchange effect. The conventional ventilating fan 9 is usually directly electrically connected to a mains power supply, and an external opening relationship is disposed between the conventional ventilating fan 9 and the mains power supply. Therefore, when the user switches the external switch, the conventional ventilating fan 9 can be controlled to be turned on or off. . However, taking the conventional ventilating fan 9 installed in the bathroom as an example, when the user leaves the bathroom after washing, the conventional ventilating fan 9 is usually closed, so that the residual moisture or odor in the bathroom cannot be effectively eliminated by the conventional ventilating fan 9. .

Accordingly, the aforementioned conventional ventilating fan 9 requires a delay switch function to be cut by the user. After the switch is turned off and the conventional ventilating fan 9 is turned off, the impeller 93 is continuously driven to rotate for an appropriate period of time to eliminate the moisture or odor of the space such as the bathroom. Referring to FIG. 2, a schematic view of the assembly of the conventional ventilating fan 9 and a conventional delay switch 8 is shown. The conventional delay switch 8 is combined with the utility power P and the external switch S, respectively, and the conventional delay switch 8 is electrically connected to the conventional ventilation fan 9 as compared with an external switch. . Thereby, the conventional delay switch 8 can receive the operation of the utility P, and control the power output to the conventional ventilating fan 9 according to the switching state of the external switch S, thereby achieving the function of delaying the switching of the conventional ventilating fan 9.

The conventional delay switch 8 must be coupled to the mains P and the external switch S, respectively, so that the conventional delay switch 8 typically forms a control box for installation at an external switch S adjacent to the building. However, the external switch S disposed in the building is usually directly electrically connected to the utility power P, so the conventional delay switch 8 must be disposed along the wall of the building together with the utility power P and the external switch S, and the utility is installed. The process of delaying the switch 8 must disconnect the electrical connection between the external switch S and the mains P, and then combine the conventional delay switch 8 with the mains P and the external switch S, respectively. Accordingly, the conventional step of installing the delay switch 8 is complicated, and the wall surface needs to be broken and the wiring configuration of the building is changed, resulting in difficulty in mounting the conventional delay switch 8. Furthermore, the installation of the conventional delay switch 8 will cost additional material costs and construction costs, resulting in a substantial increase in the overall installation cost of the conventional ventilating fan 9.

In summary, the conventional ventilating fan 9 has the disadvantages of high overall installation cost, and it is urgent to provide a further improved ventilating fan with a delay switch function to provide a delay switch function, and has the advantages of convenient installation and simple structure to reduce the ventilating fan. Overall setup cost.

One of the purposes of the present invention is to provide a ventilating fan with a delay switch function. The delay switch module includes a signal processing unit and a micro control unit coupled to each other to achieve a delay control to turn off a fan. Effect.

Another object of the present invention is to provide a ventilation fan with a delay switch function, The delay switch module is coupled to the fan or a frame to reduce the overall installation cost of the ventilation fan.

In order to achieve the above-mentioned creative purposes, the technical means used in the present invention include: a ventilation fan with a delay switch function, comprising: a fan having a frame and a wheel, the fan wheel being accommodated in the frame, The fan frame is connected to an air inlet and an air outlet of the fan wheel; a frame is coupled to the frame; and a delay switch module is coupled to the frame or the frame, and The delay switch module includes a signal processing unit for generating a switching signal and a micro control unit for receiving the switching signal. The micro control unit is coupled to the signal processing unit, and the micro control unit is coupled to the fan.

The ventilating fan has a delay switch function, wherein the frame has an opening, and the opening is opposite to the air inlet of the fan frame.

The ventilating fan with a delay switch function, wherein the fan has a power supply, a driving circuit and a motor, the driving circuit is electrically connected to the motor, and the delay switch module is connected to the power supply or the driving Circuit.

The ventilating fan with a delay switch function is provided, wherein the fan frame is combined with a receiving portion, the power supply device and the driving circuit are disposed in the accommodating portion of the fan frame, and the delay switch module is disposed adjacent to the fan The position of the housing of the frame.

The ventilating fan with a delay switch function is provided, wherein the fan frame is combined with a receiving portion, and the power supply, the driving circuit and the delay switch module are disposed in the accommodating portion of the fan frame.

The ventilating fan with the delay switch function is electrically connected to the driving circuit. The micro control unit has a power input end and a signal output end, and the power input end of the micro control unit is electrically connected to the power supply. The signal output end of the micro control unit is coupled to the driving circuit.

The present invention has a ventilation fan with a delay switch function, wherein the power supply is electrically Connecting the driving circuit, the delay switch module further comprises a power maintaining circuit, the power maintaining circuit has a power input end, the micro control unit has a signal output end, and the power input end of the power maintaining circuit is electrically connected to the driving a circuit, the signal output end of the micro control unit is coupled to the driving circuit.

The ventilating fan with a delay switch function is further provided with a power storage module and a switch unit. The power storage module includes a charging circuit and a battery. The charging circuit is electrically connected to the battery. a power input terminal, the charging circuit and the battery are electrically connected to a power supply end, the switch unit and the micro control unit are electrically connected to the power supply end, and the micro control unit is coupled to the switch unit, the micro control unit A signal output terminal is coupled to the driving circuit, and the power input end is electrically connected to the power supply, and a power output end of the switch unit is electrically connected to the driving circuit.

The ventilating fan with the delay switch function is provided, wherein a voltage stabilizing circuit is disposed between the power supply end and the micro control unit, so that the micro control unit is electrically connected to the power supply end indirectly via the voltage stabilizing circuit.

The ventilating fan with a delay switch function is further provided, wherein the delay switch module is further provided with a delay time setting unit, and the delay time setting unit is coupled to the micro control unit.

The ventilating fan is provided with a delay time setting unit, wherein the delay time setting unit is configured to input a delay closing time, and the micro control unit is configured to store a micro control unit that stores the delayed closing time, and the micro control unit is used for A delayed shutdown procedure is executed to shut down the fan after the delayed shutdown procedure begins and continues for the delayed shutdown time.

a ventilation fan having a delay time setting unit, wherein the micro control unit stores a micro control unit that stores the delayed shutdown time and stores a minimum startup time in advance, and when the micro control unit determines that the startup time of the fan is greater than At the minimum startup time, the micro control unit will execute the delayed shutdown procedure, and when the startup time of the fan is less than the minimum startup time, the micro control unit will not execute the delayed shutdown procedure.

The ventilating fan is provided with a delay time setting unit, wherein the delay time setting unit is further configured to input a delay on time, and the micro control unit is configured to store a micro control unit that memorizes the delay off time and the delay on time, and The micro control unit is further configured to execute a delay on procedure to start the fan after the delay on program begins and continues for the delay on time.

The signal processing unit has a signal input terminal, and the signal processing unit includes a signal attenuation circuit, a signal extraction circuit and a signal isolation circuit, and the signal attenuation circuit is coupled to the ventilation fan. The signal extraction circuit is coupled to the signal attenuation circuit, and the signal isolation circuit is coupled to the signal extraction circuit.

The present invention has a ventilating fan with a delay switch function, wherein a lamp is additionally provided, and the lamp is electrically connected to the signal input end of the signal processing unit.

The utility model relates to a ventilation fan with a delay switch function, wherein a lamp is further provided, and the lamp is a light-emitting module composed of a light-emitting diode.

The utility model relates to a ventilation fan with a delay switch function, wherein the power supply of the fan comprises an AC to DC power converter, and the lamp is electrically connected to the power supply.

The present invention has a ventilating fan with a delay switch function, wherein the power supply of the fan and the driving circuit are integrated on a single circuit board.

The ventilating fan with a delay switch function is provided, wherein the power supply and the driving circuit are disposed inside the fan frame.

The ventilating fan with a delay switch function is provided, wherein the fan frame is combined with a receiving portion, and the power supply device and the driving circuit are disposed in the accommodating portion of the fan frame.

The ventilating fan with a delay switch function is formed, wherein the arranging space is formed in the arranging space, the fan is disposed in the accommodating space, the opening of the frame is connected to the accommodating space, and the frame is further opened. Connected to one of the connecting spaces of the accommodating space, the opening and the connecting port are respectively opposite to the air inlet and the air outlet of the fan frame.

The ventilating fan has a delay switch function, wherein the frame seat is further combined with a row of hoods, and the hood is provided with a plurality of vents connecting the openings.

The present invention has a ventilating fan with a delay switch function, wherein the micro control unit is a micro control unit that stores a delay off time in advance, and the micro control unit is configured to execute a delay closing process to start and delay the delay at the delay closing process. Turn off the fan after the time is off.

The ventilating fan as described above, wherein the micro control unit is a micro control unit that stores the delay off time and a minimum start time in advance, and when the micro control unit determines that the startup time of the fan is greater than the minimum start time, the micro control unit The control unit will execute the delayed shutdown procedure, and the micro control unit will not execute the delayed shutdown procedure when the startup time of the fan is less than the minimum startup time.

The ventilating fan as described above, wherein the micro control unit is a micro control unit that stores the delayed closing time and a delayed opening time in advance, and the micro control unit is further configured to perform a delay opening process to start at the delayed opening process and The fan is started after the delay on time is continued.

[this creation]

1‧‧‧fan

11‧‧‧Fan frame

11a‧‧‧Air inlet

11b‧‧‧air outlet

12‧‧‧fan wheel

13‧‧‧ 容部

14‧‧‧Power supply

14a‧‧‧First power output

14b‧‧‧second power output

15‧‧‧Drive circuit

16‧‧‧Motor

2‧‧‧ frame

21‧‧‧ openings

22‧‧‧Connecting port

3‧‧‧Delay switch module

31‧‧‧Signal Processing Unit

31a‧‧‧Signal input

311‧‧‧Signal attenuation circuit

312‧‧‧ Signal capture circuit

313‧‧‧ Signal isolation circuit

32‧‧‧Micro Control Unit

32a‧‧‧Power input

32b‧‧‧ signal output

33‧‧‧Delay time setting unit

34‧‧‧Power Hold Circuit

34a‧‧‧Power input

35‧‧‧Power storage module

35a‧‧‧Power input

35b‧‧‧Power supply

351‧‧‧Charging circuit

352‧‧‧Battery

353‧‧‧Variable circuit

36‧‧‧Switch unit

36a‧‧‧Power output

4‧‧‧Exhaust hood

41‧‧‧ vents

5‧‧‧Lights

P‧‧‧Power

S‧‧‧External switch

A‧‧‧ accommodating space

[study]

9‧‧‧Used ventilation fans

91‧‧‧Base

92‧‧‧ drive

93‧‧‧ Impeller

94‧‧‧Shell

95‧‧‧ Cover

96‧‧‧Channel connector

8‧‧‧Used delay switch

P‧‧‧Power

S‧‧‧External switch

Fig. 1 is a schematic view showing the structure of a conventional ventilating fan.

Figure 2: Schematic diagram of the assembly of a conventional ventilation fan and a conventional delay switch.

Fig. 3 is a schematic exploded view showing the first embodiment of the present creation.

Fig. 4 is a circuit diagram of the delay switch module of the first embodiment of the present invention.

Fig. 4a is a circuit diagram of the delay switch module of the first embodiment of the present invention.

Figure 5 is a system architecture diagram of the delay switch module and the fan of the first embodiment of the present invention.

Figure 6 is a circuit diagram of the signal processing unit of the first embodiment of the present invention.

Figure 7 is a schematic diagram showing the control flow of the micro control unit of the first embodiment of the present invention.

Figure 8 is a schematic diagram showing another control flow of the micro control unit of the present embodiment.

Figure 9 is a circuit diagram of the delay switch module of the second embodiment of the present invention.

Figure 10 is a system architecture diagram of the delay switch module and the fan of the second embodiment of the present invention.

Figure 11 is a circuit diagram of the delay switch module of the third embodiment of the present invention.

Figure 12 is a system architecture diagram of the delay switch module and the fan of the third embodiment of the present invention.

Figure 13 is a schematic view showing the structure of the delay switch module of the present embodiment combined with the frame.

Figure 14 is a schematic diagram showing still another control flow of the micro control unit of the present embodiment.

In order to make the above and other objects, features and advantages of the present invention more comprehensible, the preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings: FIG. The ventilating fan system having the delay switch function of the first embodiment of the present invention comprises a fan 1, a frame 2 and a delay switch module 3, the fan 1 is coupled to the frame 2, and the delay switch module 3 is coupled to the fan 1. Or the frame 2, the frame 2 can be combined with a row of windshields 4.

The fan 1 has a frame 11 and a fan wheel 12, and the fan wheel 12 is received in the fan frame 11. The fan frame 11 is provided with an air inlet 11a and an air outlet 11b for connecting the fan wheel 12. The fan wheel 12 can be driven by a motor (not shown) to rotate air from the air inlet. The fan frame 11 is introduced into the casing 11 to form an air flow and is discharged from the air outlet 11b. The fan 1 can be a centrifugal fan or other conventional fan structure. Since the fan structure is a well-known technology that can be easily understood by those skilled in the art, the detailed structure of the fan 1 and its operation mode are not described herein. . The motor used in the fan 1 is preferably a fan driven by a brushless DC motor (BLDC), but the creation is not limited thereto.

The frame 2 is coupled to the fan frame 11 of the fan 1, and the frame 2 has an opening. 21, the opening 21 is opposite to the air inlet 11a of the fan frame 11, and the aperture of the opening 21 is preferably larger than the aperture of the air inlet 11a to avoid improper combination of the frame 2 and the frame 11. The air inlet 11a is shielded.

The delay switch module 3 can be coupled to the fan frame 11 of the fan 1 or the frame 2 . In the embodiment, the delay switch module 3 is coupled to the fan frame 11 . In more detail, the fan frame 11 can also be combined with a receiving portion 13 , and the receiving portion 13 can be integrally formed with the fan frame 11 for accommodating the power supply or the driving circuit required by the fan 1 . The power supply can be a conventional power supply module such as a transformer, an AC/DC converter, a battery or a voltage regulator. Accordingly, the delay switch module 3 can be disposed inside the accommodating portion 13; or the delay switch module 3 can be disposed at a position adjacent to the accommodating portion 13 of the fan frame 11, for example, the delay switch The module 3 can be disposed outside the housing portion 13 and the like.

Please refer to FIG. 4 and FIG. 4a together, wherein FIG. 4 is a circuit diagram of the delay switch module 3, and FIG. 4a is a detailed circuit diagram of one of the implementations of the delay switch module 3. The delay switch module 3 of the present invention is not limited to the circuit components shown in the embodiment, and can be understood by those skilled in the art. The delay switch module 3 generally includes a signal processing unit 31 and a micro control unit 32 coupled to each other. The signal processing unit 31 has a signal input terminal 31a, and the micro control unit 32 has a power input terminal 32a and a Signal output 32b.

Please refer to FIG. 5 , which is a system architecture diagram of the delay switch module 3 and the fan 1 , wherein the fan 1 has a power supply 14 , a driving circuit 15 and a motor 16 . As described above, the power supply 14 and the driving circuit 15 may be disposed in the accommodating portion 13 of the fan frame 11. The motor 16 may be a brushless DC motor. The power supply 14 can be electrically connected to the driving circuit 15 , and the driving circuit 15 is electrically connected to the motor 16 . The delay switch module 3 is connected to the power supply 14 or the drive circuit 15. In detail, in this In an embodiment, the power input terminal 32a of the micro control unit 32 of the delay switch module 3 can be electrically connected to the power supply 14 to receive the DC power from the power supply 14 as required for the operation of the micro control unit 32. The signal output terminal 32b of the micro control unit 32 can be coupled to the driving circuit 15 to output a control signal to the driving circuit 15 for controlling the driving circuit 15 to activate or deactivate the motor 16.

Referring to FIG. 3, the exhaust hood 4 may be formed into a quadrilateral or other geometric shape. The hood 4 is coupled to the frame 2, and the hood 4 is provided with a plurality of ventilations communicating with the opening 21. The opening 41 of the opening 41 is narrower than the opening 21, and can effectively prevent dust from being sucked into the fan 1 with the airflow. Furthermore, the ventilation fan with the delay switch function of the first embodiment of the present invention may further be provided with a lamp 5, which may be coupled to the frame 2 such that the lamp 5 is formed between the fan 1 and the exhaust hood 4 . In this embodiment, the lamp 5 is a light-emitting module composed of a light-emitting diode (LED), but the creation is not limited thereto.

With the above configuration, when the ventilation fan having the delay switch function of the first embodiment is actually used, it can be installed at a position such as a ceiling or a wall through the frame 2 . As shown in FIG. 5, a mains P power supply can be electrically connected to the power supply 14 of the fan 1 for outputting an AC power to the power supply 14. In addition, an external switch S is electrically connected to the mains. P and the signal input terminal 31a of the signal processing unit 31 of the delay switch module 3.

Please refer to FIG. 5 and FIG. 6 , wherein FIG. 6 is a circuit diagram of the signal processing unit 31 , and the signal processing unit 31 can include a signal attenuation circuit 311 , a signal extraction circuit 312 , and a signal isolation circuit . 313, the signal attenuation circuit 311 is coupled to the signal input terminal 31a, the signal extraction circuit 312 is coupled to the signal attenuation circuit 311, and the signal isolation circuit 313 is coupled to the signal extraction circuit 312. The signal processing unit 31 can be coupled to the micro control unit 32 via the signal isolation circuit 313. When the signal input terminal 31a is electrically connected to the external switch S, if the external switch S is turned on, the utility P can be lost. The AC power is supplied to the signal processing unit 31, and the signal attenuation circuit 311 can perform signal attenuation to reduce the amplitude of the AC power supply; otherwise, if the external switch S forms an open circuit, the utility P cannot output AC power to the signal. Processing unit 31. Accordingly, the signal capture circuit 312 can extract the signal from the signal-attenuated AC power source or the zero potential, thereby generating a switching signal, and the switching signal can be output to the micro control unit via the signal isolation circuit 313. 32.

Please refer to FIG. 7 , which is a schematic diagram of the control flow of the micro control unit 32. After receiving the switch signal by the signal isolation circuit 313 of the signal processing unit 31, the micro control unit 32 can perform the external signal according to the switch signal. For the state determination of the switch S, for example, if the value of the switch signal is not zero, it can be determined that the external switch S is in an ON state; otherwise, if the value of the switch signal is zero, it can be determined. The external switch S forms an open state (OFF). When the micro control unit 32 determines that the external switch S is in an on state, it outputs a control signal to the driving circuit 15 for controlling the driving circuit 15 to activate the motor 16, thereby driving the fan wheel 12 of the fan 1 to rotate. To complete the startup of the fan 1. In contrast, when the micro control unit 32 determines that the external switch S is turned from the on state to the off state, it reads a delayed off time (for example, 10 minutes), and executes a delayed shutdown procedure, starting at the delayed shutdown procedure and After the delay off time is continued, the micro control unit 32 outputs another control signal to the driving circuit 15 for controlling the driving circuit 15 to turn off the motor 16, thereby turning off the fan 1. The delay off time may be preset to be stored in the micro control unit 32, and the control signal may be a switch control signal (0 or 1) or a Pulse Width Modulation (PWM) signal. There are no restrictions.

Therefore, the ventilation fan with the delay switch function of the first embodiment of the present invention can preset a delay off time by setting the delay switch module 3, and after the user switches the external switch S to form an open circuit, The delay closing process is executed to turn off the fan 1 after the delay closing time, effectively achieving the effect of delay control to turn off the fan 1.

Please refer to FIG. 8 for another control flow diagram of the micro control unit 32. The micro control unit 32 can preset to store a minimum startup time (for example: 1) minute). Therefore, when the micro control unit 32 determines that the external switch S is changed from the conductive state to the open state, it can be determined whether the startup time of the fan 1 is greater than the minimum startup time, so as to determine whether the fan 1 is activated according to the length of the startup time. Perform a delayed shutdown procedure. More specifically, when the startup time of the fan 1 is less than the minimum startup time, since the startup time of the fan 1 is short, the time for the user to enter the installation space of the ventilation fan is short (for example, washing hands, taking objects, etc.) Case), it is not necessary to continuously drive the fan 1 to achieve ventilation after the user turns off the ventilation fan. Therefore, when the micro control unit 32 determines that the external switch S is changed from the conductive state to the open state, and the startup time of the fan 1 is less than the minimum startup time, the fan 1 can be directly turned off, that is, the micro control unit 32 will not perform this delayed shutdown procedure. In contrast, when the startup time of the fan 1 is greater than the minimum startup time, it means that the user enters the installation space of the ventilation fan for a long time (for example, bathing, washing, etc.), and the user needs to turn off the ventilation fan and continue driving. The fan 1 is used to achieve a ventilation effect. Therefore, when the micro control unit 32 determines that the external switch S is turned from the on state to the off state, and the startup time of the fan 1 is greater than the minimum startup time, the delay off procedure can be performed to delay the control to turn off the fan 1.

According to this, the control flow shown in FIG. 8 can determine whether the startup time of the fan 1 is greater than the minimum startup time by the micro control unit 32 to determine whether to execute the delayed shutdown procedure according to the length of the startup time of the fan 1. Therefore, when the starting time of the fan 1 is less than the minimum starting time, the fan 1 can be directly turned off to achieve an energy saving effect. However, when the startup time of the fan 1 is greater than the minimum startup time, the micro control unit 32 also performs a deferred shutdown procedure to delay the control to turn off the fan 1, so that the ventilation fan with the delay switch function of the first embodiment of the present invention still has a delay. Switch function.

In this embodiment, the power supply 14 and the driving circuit 15 can be configured. The delay switch module 3 can be disposed adjacent to the accommodating portion 13 of the fan frame 11, and only needs to be electrically connected to the power input terminal 32a of the micro control unit 32. The power supply 14 is connected to the power supply 14 and the signal output 32b of the micro control unit 32 is coupled to the driving circuit 15. The delay switch module 3 is integrated into the power supply 14 and the driving circuit of the fan 1. 15. The power supply 14 can include an AC to DC power converter, and the power supply 14 can include a first power output 14a and a second power output 14b. The first power output 14a is used. The low voltage DC power source (for example, 5 volts) is output to the driving circuit 15, and the second power output terminal 14b is for outputting a high voltage DC power source (for example, 12 volts) to the driving circuit 15. Therefore, the power input terminal 32a of the micro control unit 32 is preferably electrically connected to the first power output terminal 14a for receiving the low voltage DC power supply as the power required for the operation of the micro control unit 32.

In addition, the lamp 5 can be electrically connected to the signal input end 31a of the signal processing unit 31. Therefore, when the external switch S is turned on, the lamp 5 can receive the power of the mains P to operate the illumination. In contrast, when the user switches the external switch S to form an open circuit, the lamp 5 will not be able to receive power from the mains P, so the lamp 5 can be extinguished immediately when the user switches the external switch S to form an open circuit.

Moreover, the external switch S can be a conventional switch for being disposed at a wall position of the building, and the user can switch the external switch S to be in an on state or an open state; however, the external switch S can also be an action. a detection switch (for example, an infrared motion detector), the external switch S can be installed in the installation space of the ventilation fan, and the external switch S can detect whether the user enters the installation space of the ventilation fan, and automatically switches the switch status. In other words, when the external switch S is a motion detection switch, it can be determined through motion detection whether the user enters the installation space of the ventilation fan, and is controlled to be in an on state or an open state according to the detection result.

Please continue to refer to Figures 4 and 5, although the delay off time can be preset. The delay switch module 3 can be further provided with a delay time setting unit 33, which can be a conventional input device such as a rotary code switch or a dip switch, and the delay The time setting unit 33 is coupled to the micro control unit 32. Therefore, the delay time setting unit 33 can be used by the installer to input a delay closing time, which is stored and stored in the micro control unit 32, so that the installer can adjust the length of the delay closing time according to actual needs. .

Referring to FIG. 9, the delay switch module 3 of the ventilating fan having the delay switch function of the second embodiment is different from the delay switch module 3 of the first embodiment in that: the delay switch mode The power storage circuit 34 is electrically connected to the micro control unit 32, and the power storage circuit 34 can be internally provided with a power storage device, and the power storage device can be a capacitor or a battery (eg, Rechargeable battery) and other conventional electrical energy storage components. Therefore, please refer to FIG. 10 , which is a system architecture diagram of the delay switch module 3 and the fan 1 of the second embodiment. A mains P power supply can be electrically connected to the fan 1 via an external switch S. The power supply 14 is configured to output an AC power source to the power supply 14 via the external switch S. In addition, the driving circuit 15 of the fan 1 can be electrically connected to one of the power input terminals 34a of the power maintaining circuit 34.

According to the foregoing configuration, if the external switch S is turned on, the commercial power P can output an AC power source to the power supply 14 to enable the power supply 14 to generate and output a DC power supply to the drive circuit 15. Since the driving circuit 15 is electrically connected to the power input terminal 34a of the power maintaining circuit 34, the driving circuit 15 can output a DC power to the micro control unit 32 via the power maintaining circuit 34 to provide the micro control unit 32. At the same time, the DC power output from the drive circuit 15 is partially stored in the power supply holding circuit 34.

When the micro control unit 32 determines that the external switch S is in an on state, it outputs a control signal to the driving circuit 15 for controlling the driving circuit 15 to start the motor. 16. The fan wheel 12 of the fan 1 is further driven to rotate to complete the fan 1. In contrast, if the external switch S forms an open circuit, the utility P will not be able to output an AC power to the power supply 14, but when the micro control unit 32 determines that the external switch S is changed from the conductive state to the open state, Similarly, a delayed off time is read, and a delayed shutdown procedure is performed, and the drive circuit 15 can continue to drive the motor 16 with the stored energy in the power supply holding circuit 34 before the delayed shutdown begins and before the delayed shutdown time has elapsed. Therefore, the fan 1 can still be normally operated. After the delay off time is over, the micro control unit 32 outputs another control signal to the driving circuit 15 for controlling the driving circuit 15 to turn off the motor 16, thereby turning off the fan 1.

In other words, the ventilation fan with the delay switch function of the second embodiment of the present invention can electrically isolate the mains P and the power supply 14 of the fan 1 when the external switch S forms an open circuit to prevent the mains P and the power supply 14 from being maintained. Unnecessary loss of leakage current or waste heat generated in the on state. On the other hand, as shown in FIGS. 3 and 10, since the lamp 5 can be a light-emitting module composed of a light-emitting diode, the lamp 5 needs a DC power source to operate and emit light, and if the lamp 5 itself is not provided with an AC. When the DC power converter is turned on, the lamp 5 can be electrically connected to the power supply 14 of the fan 1. Thereby, the power supply 14 can convert the AC power of the commercial power P into a DC power supply, and output the DC power to the driving circuit 15 and the lamp 5 respectively for driving the fan 1 and starting the lamp 5. In other words, the power supply 14 of the fan 1 can simultaneously supply power to the driving circuit 15 and the luminaire 5, so that the luminaire 5 does not need to be separately provided with a power component such as an AC-to-DC power converter, which can effectively reduce the delay switch of the creator. The structural cost of the function of the ventilation fan.

It should be noted that the power supply 14 and the driving circuit 15 of the fan 1 may be integrated on a single circuit board; or the power supply 14 and the driving circuit 15 may be separately disposed on different circuit boards. Creation is not limited to this. As described above, the fan frame 11 can be coupled to the accommodating portion 13 for accommodating the power supply 14 and the driving circuit 15; The power supply 14 and the driving circuit 15 can also be disposed directly inside the fan frame 11 , especially when the power supply 14 and the driving circuit 15 are integrated on a single circuit board, which has a smaller overall volume, and thus Preferably, the power supply 14 and the driving circuit 15 are directly disposed inside the fan frame 11 without separately providing the receiving portion 13, and those skilled in the art can understand the implementer. Accordingly, the fan 1 can provide the DC power required by the fan 1 and the lamp 5 by setting the power supply 14 including the AC to DC power converter to simultaneously drive the circuit 15 and the lamp 5 Power is supplied.

Referring to FIG. 11, the delay switch module 3 of the ventilating fan having the delay switch function of the third embodiment is different from the delay switch module 3 of the first embodiment in that: the delay switch mode The power storage module 35 has a power input terminal 35a and a power supply terminal 35b, and the power storage module 35 includes a charging circuit 351 and A battery 352. The charging circuit 351 is electrically connected to the power supply terminal 35a. The charging circuit 351 and the battery 352 are electrically connected to the power supply terminal 35b, and the switch unit 36 is also electrically connected to the power supply terminal 35b.

Therefore, please refer to FIG. 12 , which is a system architecture diagram of the delay switch module 3 and the fan 1 of the third embodiment. The micro control unit 32 can be coupled to the switch unit 36 to output a Controlling the signal to the switch unit 36 for controlling the switch unit 36 to output a power signal to the drive circuit 15, a mains P power supply can be electrically connected to the power supply 14 of the fan 1 via an external switch S for The external switch S outputs an AC power source to the power supply 14. In addition, the power supply 14 can be electrically connected to the power input terminal 35a of the power storage module 35. The power output terminal 36a of the switch unit 36 is electrically connected to the driving circuit 15, and the micro control unit 32 A signal output terminal 32b can be coupled to the driving circuit 15 to output a control signal to the driving circuit 15 for controlling the driving circuit 15 to activate or deactivate the motor 16.

According to the foregoing structure, if the external switch S is turned on, the mains P can be lost. An AC power source is supplied to the power supply 14 to enable the power supply 14 to generate and output DC power to the power storage module 35. After the DC power source passes through the charging circuit 351, the battery 352 can be charged via the power supply terminal 35b, so that part of the power is stored in the battery 352. In addition, the micro control unit 32 can be electrically connected to the power supply terminal 35b to receive the power required for the operation of the micro control unit 32. The power supply 14 generally outputs a high-voltage DC power supply (for example, 12 volts). Therefore, a voltage stabilizing circuit 353 is preferably disposed between the power supply terminal 35b and the micro control unit 32, so that the micro control unit 32 is indirectly The voltage stabilizing circuit 353 is electrically connected to the power supply terminal 35b, and the voltage stabilizing circuit 353 is configured to convert the high voltage DC power source into a low voltage DC power source (for example, 5 volts), and the low voltage DC The power supply outputs a DC power source to the micro control unit 32 to provide the electrical energy required for operation of the micro control unit 32.

When the micro control unit 32 determines that the external switch S is in an on state, it outputs a control signal to the switch unit 36, so that the switch unit 36 is turned on, whereby the DC power output by the power supply 14 can be A power signal is formed and output to the drive circuit 15 of the fan 1 via the switch unit 36. When the driving circuit 15 receives the power signal, the micro control unit 32 outputs a control signal to the driving circuit 15 for controlling the driving circuit 15 to activate the motor 16, thereby driving the fan wheel 12 of the fan 1 to rotate. Finish starting the fan 1.

In contrast, if the external switch S forms an open circuit, the utility P will not be able to output an AC power to the power supply 14, but when the micro control unit 32 determines that the external switch S is changed from the conductive state to the open state, Similarly, a delayed off time is read, and a delayed shutdown procedure is performed. The power stored by the battery 352 can replace the DC power output by the power supply 14 before the delayed shutdown begins and before the delayed shutdown time has expired. For continuously forming the power signal, and outputted to the driving circuit 15 of the fan 1 via the switching unit 36, so that the driving circuit 15 can continuously drive the motor 16, so that the fan 1 can still be made Maintain normal operation. After the delay off time is over, the micro control unit 32 outputs another control signal to the switch unit 36 to cause the switch unit 36 to form an open circuit, whereby the delay switch module 3 stops outputting the power signal to the drive circuit. At the same time, the micro control unit 32 outputs another control signal to the driving circuit 15 for controlling the driving circuit 15 to turn off the motor 16, thereby turning off the fan 1.

In other words, the ventilation fan with the delay switch function of the third embodiment of the present invention can also electrically isolate the utility P and the power supply 14 of the fan 1 when the external switch S forms an open circuit to avoid the utility P and the power supply 14 . Unnecessary loss such as leakage current or waste heat generated in the on state is maintained. Moreover, in the embodiment, the power supply 14 directly outputs the DC power to the power storage module 35, and the switch unit 36 outputs a power signal to the drive circuit 15 to provide driving of the motor 16 . The power supply 14 is not required to be electrically connected to the driving circuit 15, and the delay switch module 3 can be integrally disposed between the power supply 14 of the fan 1 and the driving circuit 15 to further Simplify the overall and structural complexity of the ventilating fan.

Referring to FIG. 13 again, in the embodiment of the ventilating fan with the delay switch function, an accommodating space A can be formed in the frame 2, and the opening 21 of the frame 2 communicates with the accommodating space. A, the opening 21 is preferably larger than the outer diameter of the fan frame 11 of the fan 1, and the frame 2 is further connected to the connecting port 22 of the receiving space A. The fan 1 can be disposed in the accommodating space A through the opening 21, and the opening 21 and the connecting port 22 are respectively opposite to the air inlet 11a and the air outlet 11b of the fan frame 11, so that the fan 1 The airflow formed when the fan wheel 12 rotates can be discharged to the ventilating fan via the vent 41 of the hood 4, the opening 21, the air inlet 11a, the air outlet 11b, and the connection port 22. The delay switch module 3 can be coupled to the frame 2, however, the delay switch module 3 is preferably coupled to the position of the frame 2 adjacent to the receiving portion 13 of the frame 11. Can understand the implementer.

In the foregoing embodiment, only the micro control unit 32 of the delay switch module 3 can be configured to perform a delay closing process to achieve the effect of delay control to turn off the fan 1; however, please refer to FIG. A further control flow diagram of the control unit 32. In the embodiment of the ventilating fan having the delay switch function, when the micro control unit 32 determines that the external switch S is in an on state, it reads a delayed on time ( For example, 1 minute), and a delay on program is executed. After the delay start process starts and continues the delay on time, the micro control unit 32 outputs a control signal to the driving circuit 15 for controlling the driving circuit 15 to start the The motor 16, which in turn drives the fan wheel 12 of the fan 1, rotates to complete the activation of the fan 1.

Thereby, when the user switches the external switch S to make it conductive, the micro control unit 32 can perform a delay on procedure to start the fan 1 after the delay on time, effectively achieving the delay control to turn on the fan 1 effect. Since the time when the user enters the installation space of the ventilation fan is short (for example, washing hands, taking objects, etc.), generally only the lighting function of the lamp 5 is required, and the ventilation effect of the fan 1 is not required. Therefore, the delay opening process is executed by the micro control unit 32, so that when the user enters the installation space of the ventilation fan for less than the delay opening time, the fan 1 is prevented from being activated to achieve the energy saving and carbon reduction effect. In contrast, when the user enters the installation space of the ventilation fan for a long time (for example, bathing, washing, etc.), since the time when the user enters the installation space of the ventilation fan is greater than the delayed opening time, the micro control unit The fan 1 can be normally activated to provide ventilation.

Similar to the foregoing delay off time, the delay on time may be preset to be stored in the micro control unit 32; or the delay time setting unit 33 may be provided by the installer to input a delay on time, which will be stored in the memory. The micro control unit 32 allows the installer to adjust the length of the delay on time according to actual needs.

The ventilation fan with the delay switch function of the first, second and third embodiments of the present invention is provided with a delay switch module 3, and the delay switch module includes one signal processing unit coupled to each other. The signal processing unit 31 is configured to generate a switching signal, and the micro control unit 32 is connected to the fan 1, so that the micro control unit 32 can achieve the effect of delay control to turn off a fan 1.

The delay switch module 3 can be coupled to the fan 1 or a frame 2, so that the delay switch module 3 can be installed together with the frame 2, so that the embodiments have a delay switch. The function of the ventilating fan has the advantage of convenient installation, and the conventional delay switch 8 provided with the conventional ventilating fan 9 needs to be separately installed at the position of the external switch S of the adjacent building, and the process of the conventional delay switch 8 must change the structure of the building. In the line configuration, the ventilation fans with the delay switch function of the first, second and third embodiments of the present invention can indeed achieve the effect of reducing the overall installation cost of the ventilation fan. Moreover, the delay switch module 3 can be integrated with the power supply 14 and the driving circuit 15 of the fan 1, thereby simplifying the overall structural complexity of the ventilating fan, and the effect of reducing the overall installation cost of the ventilating fan is more remarkable. .

In summary, the ventilating fan with the delay switch function can achieve the effect of reducing the overall installation cost of the ventilating fan.

Although the present invention has been disclosed by the above-described preferred embodiments, it is not intended to limit the present invention, and it is still within the spirit and scope of the present invention to make various changes and modifications to the above embodiments. The technical scope of the protection is created, so the scope of protection of this creation is subject to the definition of the patent application scope attached.

1‧‧‧fan

11‧‧‧Fan frame

11a‧‧‧Air inlet

11b‧‧‧air outlet

12‧‧‧fan wheel

13‧‧‧ 容部

2‧‧‧ frame

21‧‧‧ openings

3‧‧‧Delay switch module

4‧‧‧Exhaust hood

41‧‧‧ vents

5‧‧‧Lights

Claims (26)

A ventilating fan with a delay switch function includes: a fan having a frame and a wheel, wherein the fan wheel is accommodated in the fan frame, and the fan frame is opened to communicate with an air inlet of the fan wheel and The air outlet; a frame is coupled to the frame; and a delay switch module is coupled to the frame or the frame, and the delay switch module includes a signal for generating a switching signal And a micro control unit for receiving the switching signal, the micro control unit is coupled to the signal processing unit, and the micro control unit is connected to the fan. The ventilating fan with a delay switch function according to the first aspect of the invention, wherein the frame has an opening, and the opening is opposite to the air inlet of the fan frame. The ventilating fan with a delay switch function according to the first aspect of the invention, wherein the fan has a power supply, a driving circuit and a motor, the driving circuit is electrically connected to the motor, and the delay switch module is connected The power supply or the drive circuit. The ventilating fan with a delay switch function according to the third aspect of the invention, wherein the fan frame is combined with a receiving portion, the power supply device and the driving circuit are disposed in the accommodating portion of the fan frame, and the delay switch The module is disposed adjacent to the housing of the fan frame. The ventilation fan with a delay switch function according to the third aspect of the invention, wherein the fan frame is combined with a receiving portion, and the power supply, the driving circuit and the delay switch module are disposed in the receiving portion of the fan frame. among. The ventilating fan with a delay switch function according to claim 3, wherein the power supply is electrically connected to the driving circuit, the micro control unit has a power input end and a signal output end, and the power of the micro control unit The input terminal is electrically connected to the power source The signal output end of the micro control unit is coupled to the driving circuit. The ventilating fan with a delay switch function according to claim 3, wherein the power supply is electrically connected to the driving circuit, and the delay switch module further comprises a power maintaining circuit, the power maintaining circuit has a power input end The micro control unit has a signal output end, and the power input end of the power holding circuit is electrically connected to the driving circuit, and the signal output end of the micro control unit is coupled to the driving circuit. The ventilating fan with a delay switch function according to the third aspect of the invention, wherein the delay switch module further comprises a power storage module and a switch unit, wherein the power storage module comprises a charging circuit and a battery. The charging circuit is electrically connected to a power input end, the charging circuit is electrically connected to the power supply end, the switch unit is electrically connected to the power supply end, and the micro control unit is coupled to the switch And a signal output end of the micro control unit is coupled to the driving circuit, and the power input end is electrically connected to the power supply, and a power output end of the switching unit is electrically connected to the driving circuit. The ventilating fan with a delay switch function according to the eighth aspect of the invention, wherein a voltage stabilizing circuit is disposed between the power supply end and the micro control unit, so that the micro control unit is electrically connected to the Power supply terminal. The ventilating fan with the delay switch function as described in claim 1, 2, 3, 4, 5, 6, 7, 8, or 9 of the patent application, wherein the delay switch module further sets a delay time setting unit, the delay time The setting unit is coupled to the micro control unit. The ventilating fan with a delay switch function as described in claim 1, 2, 3, 4, 5, 6, 7, 8, or 9, wherein the signal processing unit has a signal input end, and the signal processing unit includes a signal attenuation circuit, a signal acquisition circuit and a signal isolation circuit, the signal attenuation circuit is coupled to the signal input end, the signal extraction circuit is coupled to the signal attenuation circuit, and the signal isolation circuit is coupled to the signal Pick up electricity road. For example, the ventilating fan with the delay switch function described in claim 11 is further provided with a luminaire electrically connected to the signal input end of the signal processing unit. For example, the ventilating fan with the delay switch function described in the third, fourth, fifth, sixth, seventh, eighth or ninth aspect of the patent application is provided with a luminaire, which is a illuminating module composed of a light emitting diode. The ventilating fan with a delay switch function according to claim 13 , wherein the power supply of the fan comprises an AC to DC power converter, and the lamp is electrically connected to the power supply. The ventilating fan with a delay switch function according to claim 14, wherein the power supply of the fan and the driving circuit are integrated on a single circuit board. The ventilating fan with a delay switch function according to claim 15 , wherein the power supply and the driving circuit are disposed inside the fan frame. The ventilating fan with a delay switch function according to claim 14, wherein the power supply and the driving circuit are disposed inside the fan frame. The ventilating fan with a delay switch function according to claim 14, wherein the fan frame is combined with a receiving portion, and the power supply device and the driving circuit are disposed in the accommodating portion of the fan frame. The ventilating fan with a delay switch function as described in claim 2, 3, 4, 5, 6, 7, 8 or 9 wherein an internal accommodating space is formed in the frame, and the fan is disposed in the accommodating space. In the space, the opening of the frame is connected to the accommodating space, and the frame is further connected with a connecting port of the accommodating space, and the opening and the connecting port are respectively opposite to the air inlet and the air outlet of the fan frame. . The ventilating fan with a delay switch function as described in claim 2, 3, 4, 5, 6, 7, 8, or 9 of the patent application, wherein the frame seat is further combined with a row of hoods, and the hood is opened a plurality of vents that communicate with the opening. The ventilating fan with a delay switch function as described in claim 1, 2, 3, 4, 5, 6, 7, 8, or 9, wherein the micro control unit is a micro control unit that stores a delay off time in advance. And the micro control unit is configured to execute a delayed shutdown procedure to turn off the fan after the delay shutdown procedure begins and continues for the delayed shutdown time. The ventilating fan with a delay switch function according to claim 21, wherein the micro control unit is a micro control unit that stores the delay off time and a minimum start time in advance, and when the micro control unit determines the start of the fan When the time is greater than the minimum startup time, the micro control unit will execute the delayed shutdown procedure, and when the startup time of the fan is less than the minimum startup time, the micro control unit does not execute the delayed shutdown procedure. The ventilating fan with a delay switch function according to claim 21, wherein the micro control unit is a micro control unit that stores the delay off time and a delay on time in advance, and the micro control unit is further configured to perform a delay. The program is turned on to start the fan after the delay on program starts and continues for the delay on time. The ventilating fan with a delay switch function according to claim 10, wherein the delay time setting unit is configured to input a delay closing time, and the micro control unit is configured to store a micro control unit that memorizes the delayed closing time, and the micro control unit The control unit is operative to perform a deferred shutdown procedure to shut down the fan after the delayed shutdown procedure begins and continues for the delayed shutdown time. The ventilating fan with a delay switch function according to claim 24, wherein the micro control unit stores a micro control unit that stores the delayed shutdown time and pre-stores a minimum startup time, and when the micro control unit determines the fan When the startup time is greater than the minimum startup time, the micro control unit will execute the delayed shutdown procedure, and when the startup time of the fan is less than the minimum startup time, the micro control unit does not execute This delay closes the program. The ventilating fan with a delay switch function according to claim 24, wherein the delay time setting unit is further configured to input a delay on time, and the micro control unit stores the memory of the delay off time and the delay on time. And a control unit, and the micro control unit is further configured to execute a delay on program to start the fan after the delay start process starts and continues the delay on time.