CN212305280U - Multi-purpose timer circuit - Google Patents

Abstract

The utility model provides a multi-purpose timer circuit can switch the timer type wantonly to power is high, with low costs, include: sensing head circuit, WIFI controller circuit, power supply circuit and relay circuit, its characterized in that, sensing head circuit can with WIFI controller circuit connection, WIFI controller circuit and relay circuit connection, power supply circuit and WIFI controller circuit and relay circuit connection, sensing head circuit not fixed with WIFI controller circuit connection, can be according to the type of the arbitrary replacement sensing head circuit of user demand's change. Types of sensor head circuits include: one of a heat-sensitive sensor head circuit, a humidity-sensitive sensor head circuit, a light-sensitive sensor head circuit, a gas-sensitive sensor head circuit, a force-sensitive sensor head circuit, a magnetic-sensitive sensor head circuit, an acoustic-sensitive sensor head circuit, a color-sensitive sensor head circuit, a taste-sensitive sensor head circuit, or a radiation-sensitive sensor head circuit.

Description

Multi-purpose timer circuit

Technical Field

The utility model relates to a timer technical field, more specifically relates to a multi-purpose timer circuit.

Background

The use scene of timer is very extensive, has generally used in people's daily life, and the function that the timer can regularly open/close can satisfy different scenes, and present timer kind has: mechanical timers, temperature controlled timers, humidity timers, light controlled timers, gas sensitive timers, etc. For example, the light-operated timer is mostly applied in the field of lighting, and the light-operated timer is an electronic device which reacts to the ambient light illumination through a sensor which is sensitive to light so as to achieve automatic control; the temperature control timer is mostly applied to equipment with requirements on temperature, and the temperature control timer reacts to the temperature change of the environment through a temperature-sensitive sensor, so that the automatic control equipment is achieved.

However, after the current timer determines the type of the timer according to the application, the type of the timer cannot be changed, such as a light-operated timer, which only has a light-operated function and cannot be replaced by other types of timers, and the power of the timer is small and the cost is high.

In view of the foregoing, there is a need in the art for a multi-purpose timer circuit that can support any switching sensor type, and that is high in power and low in cost.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a multi-purpose timer circuit can switch the timer type wantonly to power is high, with low costs.

A multi-purpose timer circuit comprising: sensing head circuit, WIFI controller circuit, power supply circuit and relay circuit, its characterized in that, sensing head circuit can with WIFI controller circuit connection, WIFI controller circuit and relay circuit connection, power supply circuit and WIFI controller circuit and relay circuit connection, sensing head circuit not fixed with WIFI controller circuit connection, can be according to the type of the arbitrary replacement sensing head circuit of user demand's change.

In some embodiments, when the sensor head circuit needs to be connected to the WIFI controller circuit, the interface J1 of the sensor head circuit is connected to the interface J3 of the WIFI controller circuit, and when the type of the sensor head circuit needs to be replaced, the interface J1 of the sensor head circuit and the interface J3 of the WIFI controller circuit can be separated at any time.

In some embodiments, the type of sensor head circuit comprises: one of a heat-sensitive sensor head circuit, a humidity-sensitive sensor head circuit, a light-sensitive sensor head circuit, a gas-sensitive sensor head circuit, a force-sensitive sensor head circuit, a magnetic-sensitive sensor head circuit, an acoustic-sensitive sensor head circuit, a color-sensitive sensor head circuit, a taste-sensitive sensor head circuit, or a radiation-sensitive sensor head circuit.

In some embodiments, after the sensing head circuit is connected with the WIFI controller, the sensing head circuit experiences the measured environmental factors, converts the environmental factors into electrical signals and outputs the electrical signals to the WIFI controller circuit, so that the switch of the WIFI controller circuit is closed or opened, the WIFI controller circuit inputs the electrical signals into the relay circuit, the relay works or does not work, the relay works and outputs the signals to an external control load, and after the power supply circuit converts high voltage into low voltage, the power supply circuit respectively and continuously and stably provides low voltage power supply for the WIFI controller circuit and the relay circuit.

In some embodiments, the sensor element of the sensor head circuit senses the measured environmental factor, converts the environmental factor into a physical quantity signal and outputs the physical quantity signal to the conversion element, and the conversion element converts the physical quantity signal into an electric signal and outputs the electric signal to the WIFI controller circuit.

Further, as shown in fig. 1 and fig. 2, the sensor head circuit forms a voltage dividing circuit through VCC to R19, PH/RV, R9, and to ground; the resistance value of the sensing element changes along with the change of environmental factors, the voltage on the R9 changes along with the change, after the filtering action of the C8 and the C9, the changed voltage is input into the integrated circuit U2 through the R8, the changed voltage is identified through the A/D conversion of the U2, and when the voltage exceeds a certain set value, the U2 outputs a single pulse high level for only 1 second to the R20 of the WIFI controller circuit through the 6 PIN.

Further, as shown in fig. 1, when the sensor head circuit is a light-sensitive sensor head circuit, the light-sensitive sensor head circuit forms a voltage dividing circuit through VCC to R19, PH, R9, and to ground; along with the change of day brightness or day black, the resistance value of the on-off resistor PH changes, the voltage on R9 changes, after the filtering effect is achieved through C8 and C9, the changed voltage is input into the MCU through R8, the changed voltage is identified through the A/D conversion of the MCU, and when the voltage exceeds a certain set value, the MCU outputs a single pulse high level for only 1 second to the R20 of the WIFI controller circuit through 6 PIN.

Further, as shown in fig. 2, when the sensor head circuit is a pressure-sensitive sensor head circuit, the pressure-sensitive sensor head circuit forms a voltage dividing circuit through VCC to R19, RV, R9, and to ground; along with the change of day brightness or day black, the resistance value of the voltage dependent resistor RV changes, the voltage on R9 changes, after the C8 and the C9 play a filtering role, the changed voltage is input into the MCU through R8, the changed voltage is identified through the A/D conversion of the MCU, and when the voltage exceeds a certain set value, the MCU outputs a single pulse high level for only 1 second to the R20 of the WIFI controller circuit through 6 PIN.

In some embodiments, the WIFI controller circuit includes 1-way automatic control switch and 1-8-way manually controlled switch (supplementary switch), and preferably, the WIFI controller circuit includes 1-way automatic control switch and 2-4-way manually controlled switch.

Further, the sensing head circuit outputs a single pulse high level to the WIFI controller circuit, drives the triode, gives a single pulse of only 1 second for the input of the WIFI module, and the automatic control switch is closed, and two indicator lamps (a group) of the WIFI module are bright and used for displaying that the automatic control switch is closed and inputting the high level to the triode of the relay circuit.

Further, when the manually controlled switch is pressed down manually, the manually controlled switch is closed, a single pulse of only 1 second is input to the WIFI module, and two indicating lamps (a group of) connected with the WIFI module are turned on to display that the manually controlled switch is closed and input a high level into a triode of the relay circuit.

Further, as shown in fig. 3, with 1-way automatic control switch and 2-way manual control switch, R20 of the WIFI controller circuit drives a transistor Q1, a single pulse of only 1 second is input to 9pin of the WIFI module, and the second-way switch (KEY2) is closed, and two indicator lights (a group) connected to 18pin of the WIFI module are turned on to display that the second-way switch (KEY2) is closed, and a high level is input to the transistor Q2 of the relay circuit.

Further, as shown in fig. 3, the first switch (KEY1) and the third switch (KEY3) are manually controlled switches, and are used for manually closing or opening the switches, when the first switch is manually pressed, the first switch is closed, a single pulse of only 1 second is input to 5pin of the WIFI module, and two indicator lamps (a group of indicator lamps) connected with 14pin of the WIFI module are turned on to display that the first switch is closed, and a high level is input to a triode Q3 of the relay circuit; when the third switch is manually pressed down, the third switch is closed, a single pulse of only 1 second is input to 2pin of the WIFI module, and two red lamps (one group) connected with 12pin of the WIFI module are turned on to display that the third switch is closed and input a high level to a triode Q4 of the relay circuit.

In some embodiments, the number of transistors and relays of the relay circuit is the same as the number of switches of the WIFI controller circuit.

Further, the triode of relay circuit is input to the high level, and the triode of relay circuit is connected with the relay, and the imperial iron of relay is closed to relay output signal is to external control load.

Further, as shown in fig. 3, a high level is inputted to the transistor Q2 of the relay circuit, the transistor Q2 of the relay circuit is connected to the relay K1, and the iron of the relay K1 is closed, so that the relay K1 outputs a signal from the LO1 to the external control load.

Further, as shown in fig. 3, the WIFI controller circuit provides 2 manually controlled switches, and then manually presses the first switch, the high level is input to the transistor Q3 of the relay circuit, the transistor Q3 of the relay circuit is connected with the relay K2, and the iron of the relay K2 is closed, so that the relay K2 outputs a signal from the LO2 to the external control load; the third switch is manually pressed, high level is input into a triode Q4 of the relay circuit, a triode Q4 of the relay circuit is connected with a relay K3, and a magnet of the relay K3 is closed, so that the relay K3 outputs signals to an external control load from LO 3.

In some embodiments, the L and N of the power circuit are connected to 220V power, the ac power is changed into dc power through the bridge rectifier diode BR1, the voltage is automatically increased to 310V through the bridge rectifier diode BR1, the voltage is reduced to 24V through the step-down chip U1 and the transformer T1, and on one hand, the 24V voltage is input into the relay circuit to provide a stable 24V low-voltage power supply for the relay circuit; on the other hand, the 24V voltage is reduced to 5V through UP, and then the 5V voltage is input into the WIFI controller circuit to provide a stable 5V low-voltage power supply for the WIFI controller circuit.

Because, the sensing head circuit is not fixed and WIFI controller circuit connection, when the sensing head circuit needs to be connected with the sensing head circuit and WIFI controller circuit, interface J1 through the sensing head circuit is connected with interface J3 of WIFI controller circuit, when the sensing head circuit type needs to be replaced, interface J1 of the sensing head circuit can be separated from interface J3 of the WIFI controller circuit at any time, the type of the sensing head circuit can be replaced arbitrarily according to the change of the use requirement, and therefore the multipurpose function of the timer is realized.

Because, power supply circuit can be stable all the time provides 24V's low voltage power for the relay circuit and can be stable provide 5V's low voltage power for WIFI controller circuit, when the type of replacement sensing head circuit, can guarantee WIFI controller circuit and relay circuit's voltage stability, whole timer circuit's when consequently realizing the switch-over of timer function stability.

Meanwhile, the timer circuit is reasonable in arrangement, so that the timer is high in power and low in cost.

Drawings

Fig. 1 is a circuit diagram of the photosensitive sensor head of the present invention.

Fig. 2 is a circuit diagram of the pressure sensitive sensor head of the present invention.

Fig. 3 is the utility model discloses a WIFI controller circuit, power supply circuit and relay circuit.

The drawings are described in detail below with reference to specific embodiments.

Detailed Description

The following examples are described to aid in the understanding of the present invention and are not, and should not be construed to limit the scope of the invention in any way.

In the following description, those skilled in the art will recognize that components may be described throughout this discussion as separate functional units (which may include sub-units), but those skilled in the art will recognize that various components or portions thereof may be divided into separate components or may be integrated together (including being integrated within a single system or component).

Furthermore, connections between components or systems within the figures are not intended to be limited to direct connections. Rather, data between these components may be modified, reformatted, or otherwise changed by the intermediate components. Additionally, additional or fewer connections may be used. It should also be noted that the terms "coupled," "connected," or "input" should be understood to include direct connections, indirect connections through one or more intermediate devices, and wireless connections.

Example 1:

a multi-purpose timer circuit comprising: sensing head circuit, WIFI controller circuit, power supply circuit and relay circuit, sensing head circuit can with WIFI controller circuit connection, WIFI controller circuit and relay circuit connection, power supply circuit and WIFI controller circuit and relay circuit connection, sensing head circuit not fixed with WIFI controller circuit connection, can be according to the type of the arbitrary replacement sensing head circuit of user demand's change.

When the sensing head circuit needs to be connected with the WIFI controller circuit, the interface J1 of the sensing head circuit is connected with the interface J3 of the WIFI controller circuit, and when the type of the sensing head circuit needs to be replaced, the interface J1 of the sensing head circuit and the interface J3 of the WIFI controller circuit can be separated at any time.

Types of sensor head circuits include: one of a heat-sensitive sensor head circuit, a humidity-sensitive sensor head circuit, a light-sensitive sensor head circuit, a gas-sensitive sensor head circuit, a force-sensitive sensor head circuit, a magnetic-sensitive sensor head circuit, an acoustic-sensitive sensor head circuit, a color-sensitive sensor head circuit, a taste-sensitive sensor head circuit, or a radiation-sensitive sensor head circuit, and the type of the sensor head circuit is arbitrarily replaced according to the change of the use requirement.

As shown in fig. 1 and 3, when the sensor head circuit is a light sensor head circuit, the light sensor head circuit forms a voltage dividing circuit through VCC to R19, PH, R9, and to ground; along with the change of day brightness or day black, the resistance value of the on-off resistor PH changes, the voltage on R9 changes, after the filtering effect is achieved through C8 and C9, the changed voltage is input into the MCU through R8, the changed voltage is identified through the A/D conversion of the MCU, and when the voltage exceeds a certain set value, the MCU outputs a single pulse high level for only 1 second to the R20 of the WIFI controller circuit through 6 PIN.

The R20 of the WIFI controller circuit drives the triode Q1 to input a single pulse of only 1 second to 9pin of the WIFI module, the second switch is closed, and two indicator lamps (a group of) connected with 18pin of the WIFI module are turned on to display that the second switch is closed and input high level to the triode Q2 of the relay circuit. The first switch and the third switch are supplementary switches and are used for manually closing or opening the switches, when the first switch is manually pressed down, the first switch is closed, a single pulse of only 1 second is input to 5 pins of the WIFI module, and two indicator lamps (one group) connected with 14 pins of the WIFI module are turned on to display that the first switch is closed and input a high level to a triode Q3 of the relay circuit; when the third switch is manually pressed down, the third switch is closed, a single pulse of only 1 second is input to 2pin of the WIFI module, and two red lamps (one group) connected with 12pin of the WIFI module are turned on to display that the third switch is closed and input a high level to a triode Q4 of the relay circuit.

The high level is input to triode Q2 of relay circuit, and triode Q2 of relay circuit is connected with relay K1, and the indisputable closing of relay K1 to relay K1 is followed LO1 output signal to external control load. The first switch is manually pressed, high level is input into a triode Q3 of the relay circuit, a triode Q3 of the relay circuit is connected with a relay K2, and a magnet of the relay K2 is closed, so that the relay K2 outputs signals from an LO2 to an external control load; the third switch is manually pressed, high level is input into a triode Q4 of the relay circuit, a triode Q4 of the relay circuit is connected with a relay K3, and a magnet of the relay K3 is closed, so that the relay K3 outputs signals to an external control load from LO 3.

The L and the N of the power circuit are connected with a 220V power supply, alternating current is changed into direct current through a bridge rectifier diode BR1, the voltage is automatically increased to 310V through a bridge rectifier diode BR1, the voltage is reduced to 24V through a voltage reduction chip U1 and a transformer T1, and on one hand, 24V voltage is input into the relay circuit to provide a stable 24V low-voltage power supply for the relay circuit; on the other hand, the 24V voltage is reduced to 5V through UP, and then the 5V voltage is input into the WIFI controller circuit to provide a stable 5V low-voltage power supply for the WIFI controller circuit.

When the timer needs to be changed from the time of sensing the ambient brightness to the time of sensing the ambient pressure, the interface J1 of the photosensitive sensing head circuit is separated from the interface J3 of the WIFI controller circuit and replaced by the pressure-sensitive sensing head circuit, as shown in fig. 2, the interface J1 of the pressure-sensitive sensing head circuit is connected with the interface J3 of the WIFI controller circuit, and the timer becomes the pressure-sensitive timer.

While various aspects and embodiments have been disclosed herein, it will be apparent to those skilled in the art that other aspects and embodiments can be made without departing from the spirit of the disclosure, and that several modifications and improvements can be made without departing from the spirit of the disclosure. The various aspects and embodiments disclosed herein are presented by way of example only and are not intended to limit the present disclosure, which is to be controlled in the spirit and scope of the appended claims.

Claims (10)

1. A multi-purpose timer circuit comprising: sensing head circuit, WIFI controller circuit, power supply circuit and relay circuit, its characterized in that, sensing head circuit can with WIFI controller circuit connection, WIFI controller circuit and relay circuit connection, power supply circuit and WIFI controller circuit and relay circuit connection, sensing head circuit not fixed with WIFI controller circuit connection, can be according to the type of the arbitrary replacement sensing head circuit of user demand's change.

2. The multi-purpose timer circuit of claim 1, wherein the sensor head circuit is connectable to the interface J3 of the WIFI controller circuit via the interface J1 of the sensor head circuit, and wherein the interface J1 of the sensor head circuit is separate from the interface J3 of the WIFI controller circuit when the type of sensor head circuit needs to be replaced.

3. The multi-timer circuit of claim 1, wherein the type of sensor head circuit comprises: one of a heat-sensitive sensor head circuit, a humidity-sensitive sensor head circuit, a light-sensitive sensor head circuit, a gas-sensitive sensor head circuit, a force-sensitive sensor head circuit, a magnetic-sensitive sensor head circuit, an acoustic-sensitive sensor head circuit, a color-sensitive sensor head circuit, a taste-sensitive sensor head circuit, or a radiation-sensitive sensor head circuit.

4. The multi-purpose timer circuit of claim 1, wherein after the sensor head circuit is connected to the WIFI controller, the sensor head circuit senses the measured environmental factors, converts the environmental factors into electrical signals, and outputs the electrical signals to the WIFI controller circuit, so that a switch of the WIFI controller circuit is turned on or off, the WIFI controller circuit inputs the electrical signals to the relay circuit, and the relay operates or does not operate, the relay operates and outputs the signals to an external control load, and after the power supply circuit converts the high voltage into the low voltage, the power supply circuit respectively and stably provides the low voltage power supply for the WIFI controller circuit and the relay circuit.

5. The multi-purpose timer circuit as recited in claim 1, wherein the sensor element of the sensor head circuit senses the measured environmental factors, converts the environmental factors into physical quantity signals and outputs the physical quantity signals to the conversion element, and the conversion element converts the physical quantity signals into electrical signals and outputs the electrical signals to the WIFI controller circuit.

6. The multi-purpose timer circuit of claim 1, wherein the WIFI controller circuit comprises a 1-way automatic control switch and a 1-8-way manual control switch.

7. The multi-purpose timer circuit of claim 6, wherein the sensor head circuit outputs a single pulse high level to the WIFI controller circuit, drives the transistor, gives a single pulse of only 1 second to the input of the WIFI module, and the automatic control switch is closed, and two indicator lights of the WIFI module are red to light to indicate that the automatic control switch is closed and input a high level to the transistor of the relay circuit.

8. The multi-purpose timer circuit of claim 6, wherein when the manual control switch is manually depressed, the manual control switch closes, a single pulse of only 1 second is input to the WIFI module, and two indicator lights connected to the WIFI module are illuminated to indicate that the manual control switch has closed and a high level is input to the transistor of the relay circuit.

9. The multi-purpose timer circuit of claim 1, wherein the number of transistors and relays of the relay circuit is the same as the number of switches of the WIFI controller circuit; the triode of relay circuit is input to the high level, and the triode of relay circuit is connected with the relay, and the imperial indisputable closure of relay to relay output signal is to external control load.

10. The multi-purpose timer circuit as claimed in claim 1, wherein the L and N of the power circuit are connected to 220V power, the voltage is automatically increased to 310V through the bridge rectifier diode BR1, the voltage is decreased to 24V through the step-down chip U1 and the transformer T1, on one hand, the 24V voltage is input to the relay circuit to provide a stable 24V low voltage power for the relay circuit, on the other hand, the 24V voltage is decreased to 5V through UP, and then the 5V voltage is input to the WIFI controller circuit to provide a stable 5V low voltage power for the WIFI controller circuit.

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