CN214152791U - Motor transmission type watering timer - Google Patents

Abstract

The utility model provides a motor drive formula timer that waters, including control module, motor drive module, timing module and motor control valve drive module, motor drive module and timing module all are connected with control module, motor control valve drive module is connected with motor drive module, timing module is used for setting up the time of watering, control module is used for the work of control motor drive module, motor drive module is used for driving motor control valve drive module, motor control valve drive module is used for according to the switching of motor drive control valve. The utility model provides a timer that waters utilizes motor drive to control the valve switching, compares in common solenoid valve formula timer that waters, cost greatly reduced, and guaranteed can be accurate regularly, realize regularly, fixed point and quantitative watering.

Description

Motor transmission type watering timer

Technical Field

The utility model belongs to the technical field of the timer technique that waters and specifically relates to indicate a motor drive formula timer that waters.

Background

Since different plants have different water requirements, when watering work is carried out, watering is carried out according to needs by taking the water requirements of plant species into consideration. And in different seasons, watering time and the like also need to be adjusted correspondingly due to the influence of environmental factors. The manual adjustment has large uncertainty, and workers are often required to have sufficient experience and rich theoretical knowledge. At present, manual work is replaced by a watering timer which has the advantages of timing, fixed-point and quantitative watering. However, the watering timers on the market are all solenoid valve type timers, and although the solenoid valve type timers have simple structures, the cost is high.

Disclosure of Invention

The utility model aims at overcoming the shortcoming among the prior art, provide a motor drive formula timer that waters.

The utility model aims at realizing through the following technical scheme:

the utility model provides a motor drive formula timer that waters, includes control module, motor drive module, timing module and motor control valve transmission module, motor drive module and timing module all are connected with control module, motor control valve transmission module is connected with motor drive module, timing module is used for setting up the time of watering, control module is used for controlling motor drive module work, motor drive module is used for driving motor control valve transmission module, motor control valve transmission module is used for controlling the switching of valve according to motor drive.

Realize the control flap switching through motor drive's mode, compare in solenoid valve formula timer that waters, cost reduction, and motor drive formula timer that waters simple structure, the function is easily realized. The opening and closing of the valve are controlled through the rotation of the switch ball body, the rotation angle and the rotation time can be controlled through the control module, and therefore when the function is expanded, the operability is high.

Furthermore, the motor control valve transmission module comprises a motor, a transmission gear, a switch gear and a switch ball body, one end of the motor is welded on the first pad, the other end of the motor is welded on the second pad, the motor is connected with the transmission gear through gear coupling, and the switch gear is fixedly connected with the switch ball body; the switch gear is also connected with the transmission gear through gear coupling; the motor is used for driving the switch ball body to rotate through the transmission gear and the switch gear, and the switch ball body is used for controlling the opening and closing of the valve.

The motor driving circuit drives the motor to operate, after the motor starts to rotate, the transmission gear drives the switch gear, the switch gear further drives the switch ball, the switch ball is located at a pipeline valve connected with the water pipe, and after the switch ball starts to rotate, the area of the valve, which is shielded by the switch ball, is continuously changed so as to achieve the purpose of controlling the valve to be opened and closed.

Further, the control module includes control chip U1, liquid crystal setting circuit, low pressure detection circuit, clock circuit and filter circuit, control chip U1's the 36 th pin is connected with power module's VDD voltage output end, control chip U1's the 12 th pin ground connection, control chip U1 is connected with motor drive circuit through 54 th pin and 55 th pin, control chip U1 is connected with motor drive switch detecting element through 56 th pin, control chip U1 is connected with low pressure detection circuit through 1 st pin, control chip U1 is connected with clock circuit through 3 rd pin and 4 th pin, control chip U1 is connected with filter circuit through 5 th pin, control chip U1 sets up circuit connection through 7 th pin, 9 th pin, 10 th pin and 11 th pin and liquid crystal.

Because the motor drive formula timer that waters need guarantee that the accurate user demand that just can be fine of time, so the design is with singlechip as control center, comes accurate work clock through clock circuit, guarantees to accomplish the user and sets up the requirement accurately.

Further, still include the display module, the display module is connected with control module, the display module includes transparent liquid crystal frame, LCD screen, presses frame, electrically conductive silica gel strip and circuit board copper skin, and the LCD screen is through pressing frame and electrically conductive silica gel strip fixed connection in transparent liquid crystal frame, and the LCD screen still is connected through circuit board copper skin and control chip U1.

The display module ensures that the user can directly see the specific content set by the user through the display module when the motor transmission type watering device is arranged to work, and the condition of setting errors can not occur. All parameters that the user set up are shown on the LCD screen, and are provided with waterproof silica gel circle, prevent at the during operation that inside water splash into the machine, cause circuit fault.

Further, the timing module includes that carousel gear sets up unit and button and sets up the unit, carousel gear sets up the unit and includes gear copper sheet, conducting strip, rotator, rotatory carousel and sealing washer, the carousel gear sets up the public end ground connection that the unit passes through gear copper sheet, still be provided with the conducting strip on the gear copper sheet, the conducting strip passes through screw fixed connection on the rotator, still overlaps on the rotator to be equipped with the sealing washer, rotatory carousel is connected with the rotator cooperation. And support to set up through the carousel mode, easy operation is understandable, and improves the security of motor drive formula timer that waters through public end ground connection. Meanwhile, the sealing ring is used for preventing water from flowing into the machine to cause circuit faults.

The timing module ensures that the user can set the watering time according to the requirement, the watering time is accurate, and the watering requirement can be well met.

Further, still include power module, power module includes battery, battery filter circuit and boost circuit, the battery passes through battery filter circuit and is connected with control module.

Because the motor-driven watering timer is often used in gardens and other scenes, a battery is adopted for supplying power, the motor-driven watering timer is more convenient to carry, and the motor-driven watering timer is easier to detach and install when a work site is replaced.

Further, the motor driving module comprises a motor driving circuit, the motor driving circuit is connected with the battery filter circuit through a booster circuit, the motor driving circuit is further connected with the motor control valve transmission module, the motor driving circuit comprises a motor driving chip U2, a capacitor C3, a capacitor C4, a capacitor C5, an inductor L2 and an inductor L3, a 4 th pin of the motor driving chip U2 is connected with a 5V voltage output end of the power supply module, a 6 th pin and a 7 th pin of the motor driving chip U2 are connected, a 6 th pin and a 7 th pin of the motor driving chip U2 are both grounded, a 2 nd pin of the motor driving chip U2 is connected with a 54 th pin of the control chip U1, a 3 rd pin of the motor driving chip U2 is connected with a 55 th pin of the control chip U1, a 5 th pin of the motor driving chip U2 is connected with a second pad through an inductor L3, the 5 th pin of the motor driving chip U2 is also connected with one end of a capacitor C4, and the other end of the capacitor C4 is connected with the ground; the 8 th pin of the motor driving chip U2 is connected with the first bonding pad through an inductor L2, the 8 th pin of the motor driving chip U2 is also connected with one end of a capacitor C3, and the other end of the capacitor C3 is connected with the ground; the capacitor C5 is connected in parallel between the first pad and the second pad, the first pad is connected with one end of the motor, and the other end of the motor is connected with the second pad.

Furthermore, the battery filter circuit comprises a battery anode conducting strip, a battery cathode conducting strip, an electrolytic capacitor E1 and a ceramic capacitor C1, wherein one end of the electrolytic capacitor E1 is connected with the battery anode conducting strip, the other end of the electrolytic capacitor E1 is connected with the battery cathode conducting strip, and the ceramic capacitor is connected with the electrolytic capacitor E1 in parallel.

Further, the boost circuit comprises an inductor L1, a boost chip W1, a diode D1, an electrolytic capacitor E2 and a capacitor C2, one end of the inductor L1 is connected with a battery anode conducting strip, the other end of the inductor L1 is connected with a VIN pin of the boost chip W1, the anode of the diode D1 is connected with a VIN pin of the boost chip W1, the cathode of the diode D1 is connected with a VOUT pin of the boost chip by 5V, the VOUT pin of the boost chip is further connected with a 5V voltage output end of a power supply module, the electrolytic capacitor E2 is connected with the VOUT pin of the boost chip W1, the other end of the electrolytic capacitor E2 is grounded, the capacitor C2 is connected with the electrolytic capacitor E2 in parallel, and the GND pin of the boost chip W1 is grounded.

And a battery filter circuit is added, so that the output voltage of the battery is more stable, and high frequency and pulse interference are filtered. In order to meet all voltage requirements, a booster circuit is designed, a plurality of power supply devices are not needed for supplying power, and design space and cost are further saved.

Further, still include detection module, detection module includes carousel gear detecting element and motor drive switch detecting element, carousel gear detecting element and motor drive switch detecting element all are connected with control module, motor drive switch detecting element still is connected with motor control valve transmission module, carousel gear detecting element still sets up the unit connection with the carousel gear.

The utility model has the advantages that:

the opening and closing of the switch valve are realized by adopting a motor transmission mode, so that watering is realized. Compared with an electromagnetic valve type watering timer, the motor transmission type watering timer is lower in cost, simpler in structure and easy to realize. And the liquid crystal display module is designed, so that the user can set and modify the liquid crystal display module according to the content on the liquid crystal display screen when using the liquid crystal display module, and the user experience is optimized. And the automatic control of the watering start or end is supported, meanwhile, the manual control is also supported, and a user can manually control the switch by selecting a manual mode, so that various working requirements of the user can be met.

Drawings

Fig. 1 is a schematic block circuit diagram of the present invention;

fig. 2 is a schematic structural diagram of the motor transmission module of the present invention;

FIG. 3 is a schematic circuit diagram of a control module according to the present invention;

fig. 4 is a schematic structural diagram of a display module according to the present invention;

FIG. 5 is a schematic structural diagram of a gear turntable setting unit of the present invention;

fig. 6 is a schematic diagram of a motor driving circuit of the present invention;

fig. 7 is a schematic diagram of a battery filter circuit of the present invention;

fig. 8 is a schematic diagram of the boost circuit of the present invention;

FIG. 9 is a front view of the motor driven watering timer of the present invention;

wherein: 1. the device comprises a control module, 1-1, a liquid crystal setting circuit, 1-2, a low-voltage detection circuit, 1-3, a clock circuit, 1-4, a filter circuit, 2, a motor driving module, 2-1, a motor driving circuit, 3, a timing module, 3-1, a turntable gear setting unit, 3-1-1, a gear copper sheet, 3-1-2, a conducting sheet, 3-1-3, a rotating body, 3-1-4, a rotating turntable, 3-1-5 sealing rings, 3-2, a key setting unit, 4, a motor control valve transmission module, 4-1, a motor, 4-2, a transmission gear, 4-3, a switching gear, 4-4, a switching ball, 4-5, a first waterproof ring, 4-6, a switch gear, a switch ball, 4-5, a first waterproof ring and a switch gear, The device comprises a second waterproof ring, 5, a display module, 5-1, a transparent liquid crystal frame, 5-2, a liquid crystal screen, 5-3, a pressing frame, 5-4, a conductive silica gel strip, 5-5, a circuit board copper sheet, 5-6, a waterproof silica gel ring, 6, a power supply module, 6-1, a battery, 6-2, a battery filter circuit, 6-3, a booster circuit, 7, a detection module, 7-1, a turntable gear detection unit, 7-2, a motor transmission switch detection unit, 8, a timer shell, 8-1, an upper shell, 8-2, a lower shell, 9 and screws.

Detailed Description

The invention is further described below with reference to the drawings and examples.

Example (b):

the utility model provides a motor drive formula timer that waters, is shown as figure 1 including control module 1, motor drive module 2, timing module 3 and motor control valve transmission module 4, motor drive module 2 and timing module 3 all are connected with control module 1, motor control valve transmission module 4 is connected with motor drive module 2, timing module 3 is used for setting up the time of watering, control module 1 is used for controlling the work of motor drive module 2, motor drive module 2 is used for driving motor control valve transmission module 4, motor control valve transmission module 4 is used for controlling the valve switching according to motor drive. And a timer housing 8 is provided to carry all the modules, and the front view of the appearance of the timer housing 8 is shown in fig. 9.

As shown in fig. 2, the motor control valve transmission module 4 includes a motor 4-1, a transmission gear 4-2, a switch gear 4-3 and a switch ball 4-4, one end of the motor 4-1 is welded to a first pad, the other end of the motor 4-1 is welded to a second pad, the motor 4-1 is connected with the transmission gear 4-2 through gear coupling, and the switch gear 4-3 is fixedly connected with the switch ball 4-4; the switch gear 4-3 is also connected with the transmission gear 4-2 through gear coupling; the motor 4-1 is used for driving the switch ball 4-4 to rotate through the transmission gear 4-2 and the switch gear 4-3, and the switch ball 4-4 is used for controlling the valve to be opened and closed. The timer shell 8 also comprises an upper shell 8-1, a middle shell and a lower shell 8-2, the motor 4-1 is fixed on the lower shell 8-2, the transmission gear 4-2 is fixed between the lower shell 8-2 and the middle shell, and the switch gear 4-3 and the switch ball 4-4 are also fixed in the lower shell 8-2. The volume is reduced through the distribution to the inner space, can adapt to more service environments. A first waterproof ring 4-5 and a second waterproof ring 4-6 are further arranged in the transmission module of the motor 4-1, the first waterproof ring 4-5 prevents water from flowing into the shell, and the second waterproof ring 4-6 ensures that water does not leak when the switch ball 4-4 is in a closed state.

The motor 4-1 driving circuit drives the motor 4-1 to operate, after the motor 4-1 starts to rotate, the transmission gear 4-2 drives the switch gear 4-3, the switch gear 4-3 further drives the switch ball 4-4, the switch ball 4-4 is positioned at a pipeline valve connected with a water pipe, and after the switch ball 4-4 starts to rotate, the area of the valve, which is shielded by the switch ball 4-4, is continuously changed, so that the purpose of controlling the valve to be opened and closed is achieved.

As shown in fig. 3, the control module 1 includes a control chip U1, a liquid crystal setting circuit 1-1, a low voltage detection circuit 1-2, a clock circuit 1-3, and a filter circuit 1-4, and the control chip U1 employs a N8P042A chip. The 36 th pin of the control chip U1 is connected with a VDD voltage output end of a power supply module, the 12 th pin of the control chip U1 is grounded, the control chip U1 is connected with a 55 th pin and a motor 4-1 drive circuit through a 54 th pin, the control chip U1 is connected with a motor 4-1 transmission switch detection unit through a 56 th pin, the control chip U1 is connected with a low voltage detection circuit 1-2 through a 1 st pin, the control chip U1 is connected with a clock circuit 1-3 through a 3 rd pin and a 4 th pin, the control chip U1 is connected with a filter circuit 1-4 through a 5 th pin, and the control chip U1 is connected with a liquid crystal setting circuit 1-1 through a 7 th pin, a 9 th pin, a 10 th pin and a 11 th pin. The low-voltage detection circuit 1-22-2 is composed of a resistor R33 and a resistor R27, one end of the resistor R33 is connected with a VDD voltage output end of the power supply module 7, and the other end of the resistor R33 is connected with a 1 st pin of the control chip U1 through a resistor R27. The clock circuit 1-32-3 is composed of a crystal oscillator XT1, a capacitor C11 and a capacitor C12, wherein a first port of the crystal oscillator XT1 is connected with a 3 rd pin of a control chip U1, a first port of the crystal oscillator XT1 is grounded through the capacitor C11, a second port of the crystal oscillator XT1 is connected with a 4 th pin of the control chip U1, and a second port of the crystal oscillator XT1 is grounded through the capacitor C12. The filter circuit 1-42-4 is composed of a capacitor C6 and a capacitor C7, one end of the capacitor C6 is connected to the 5 th pin of the control chip U1, and the other end of the capacitor C6 is connected to the 9 th pin of the control chip U1 and is connected with the ground. The capacitor C7 is connected in parallel with the capacitor C6. One end of the capacitor C10 is connected to the 10 th pin of the control chip U1, and the other end of the capacitor C10 is connected to the 11 th pin of the control chip U1. The liquid crystal setting circuit 1-1 comprises a capacitor C8, a capacitor C9 and a capacitor C10, wherein one end of the capacitor C8 is connected to the 7 th pin of the control chip U1, and the other end of the capacitor C8 is connected with the 9 th pin of the control chip U1 through a capacitor C9 and is grounded.

The display module 5 is connected with the control module 1, as shown in fig. 4, the display module 5 comprises a transparent liquid crystal frame 5-1, a liquid crystal screen 5-2, a pressing frame 5-3, a conductive silica gel strip 5-4 and a circuit board copper sheet 5-5, the liquid crystal screen 5-2 is fixedly connected in the transparent liquid crystal frame 5-1 through the pressing frame 5-3 and the conductive silica gel strip 5-4, and the liquid crystal screen 5-2 is further connected with a control chip U1 through the circuit board copper sheet 5-5. And a waterproof silica gel ring 5-6 is also arranged, the waterproof silica gel ring 5-6 is arranged between the upper shell and the transparent liquid crystal frame 5-1, and the transparent liquid crystal frame 5-1 is fixedly connected with the upper shell 8-1 through a screw 9.

The timing module 3 comprises a turntable gear setting unit 3-1 and a key setting unit 3-2, as shown in fig. 5, the turntable gear setting unit 3-1 comprises a gear copper sheet 3-1-1, a conducting strip 3-1-2, a rotating body 3-1-3, a rotating turntable 3-1-4 and a sealing ring 3-1-5, a V-shaped sealing ring is adopted, the turntable gear setting unit is grounded through the common end of the gear copper sheet 3-1-1, the gear copper sheet 3-1-1 is further provided with the conducting strip 3-1-2, the conducting strip 3-1-2 is fixedly connected to the rotating body 3-1-3 through a screw 9, the rotating body 3-1-3 is further sleeved with the sealing ring 3-1-5, the rotary turntables 3-1-4 are connected with the rotary bodies 3-1-3 in a matching way. And support to set up through the carousel mode, easy operation is understandable, and improves the security of motor 4-1 transmission formula timer that waters through public end ground connection. Meanwhile, the sealing rings 3-1-5 are used for preventing water from flowing into the machine to cause circuit faults.

The power supply device further comprises a power supply module 6, wherein the power supply module 6 comprises a battery 6-1, a battery filter circuit 6-2 and a booster circuit 6-3, and the battery 6-1 is connected with the control module 1 through the battery filter circuit 6-2.

The motor driving module 2 comprises a motor driving circuit 2-1, the motor driving circuit 2-1 is connected with the battery filter circuit 6-2 through a booster circuit 6-3, and the motor driving circuit 2-1 is further connected with the motor control valve transmission module 4. As shown in fig. 6, the motor driving circuit 2-1 includes a motor driving chip U2, a capacitor C3, a capacitor C4, a capacitor C5, an inductor L2, and an inductor L3, a 4 th pin of a motor driving chip U2 is connected to a 5V voltage output terminal of a power supply module 6, a 6 th pin of the motor driving chip U2 is connected to a 7 th pin, the 6 th pin and the 7 th pin of the motor driving chip U2 are both grounded, a 2 nd pin of the motor driving chip U2 is connected to a 54 th pin of a control chip U1, a 3 rd pin of the motor driving chip U2 is connected to a 55 th pin of the control chip U1, a 5 th pin of the motor driving chip U2 is connected to a second pad through the inductor L3, the 5 th pin of the motor driving chip U2 is further connected to one end of the capacitor C4, and the other end of the capacitor C4 is connected to ground; the 8 th pin of the motor driving chip U2 is connected with the first bonding pad through an inductor L2, the 8 th pin of the motor driving chip U2 is also connected with one end of a capacitor C3, and the other end of the capacitor C3 is connected with the ground; the capacitor C5 is connected in parallel between a first pad connected to one end of the motor 4-1 and a second pad connected to the other end of the motor 4-1.

As shown in fig. 7, the battery filter circuit 6-2 includes a battery positive electrode conductive sheet, a battery negative electrode conductive sheet, an electrolytic capacitor E1 and a ceramic capacitor C1, one end of the electrolytic capacitor E1 is connected to the battery positive electrode conductive sheet, the other end of the electrolytic capacitor E1 is connected to the battery negative electrode conductive sheet, and the ceramic capacitor is connected to the electrolytic capacitor E1 in parallel.

As shown in fig. 8, the boost circuit 6-3 includes an inductor L1, a boost chip W1, a diode D1, an electrolytic capacitor E2, and a capacitor C2, one end of the inductor L1 is connected to a positive conductive sheet of the battery, the other end of the inductor L1 is connected to a VIN pin of the boost chip W1, a positive electrode of the diode D1 is connected to a VIN pin of the boost chip W1, a negative electrode of the diode D1 is connected to a VOUT pin of the boost chip by 5V, the VOUT pin of the boost chip is further connected to a 5V voltage output terminal of the power supply module 6, the electrolytic capacitor E2 is connected to the VOUT pin of the boost chip W1, the other end of the electrolytic capacitor E2 is grounded, the capacitor C2 is connected to the electrolytic capacitor E2 in parallel, and the GND pin of the boost chip W1 is grounded.

Still include detection module 7, detection module 7 includes carousel gear detecting element 7-1 and motor drive switch detecting element 7-2, carousel gear detecting element 7-1 and motor drive switch detecting element 7-2 all are connected with control module 1, motor drive switch detecting element 7-2 still is connected with motor control valve transmission module 4, carousel gear detecting element 7-1 still sets up the unit 3-1 with the carousel gear and is connected.

The specific process of using the motor-driven watering timer by a user is as follows:

the motor-driven watering timer is connected with a water pipe, a user sets the watering starting time and the watering ending time through a turntable and a key, a watering mode set by the user, such as an automatic watering mode, a continuous watering mode or an interval watering mode, is detected through a turntable gear detection unit 7-1, basic data such as the watering starting time and the watering ending time set by the user in different watering modes are detected, and the control module 1 controls the valve to be opened and closed according to the data detected by the gear detection unit, so that the watering purpose is achieved.

After the user sets the watering start time and the watering end time through the turntable and the keys, when the watering start time is reached, the control module 1 firstly judges whether the level transmitted to the control module 1 by the motor drive switch detection unit 7-2 is high level or low level, namely the control chip U1 receives the level signal transmitted by the motor drive switch detection unit 7-2 through the 56 th pin thereof. If the voltage level is low, the control module 1 firstly sends a motor 4-1 transmission signal to the motor driving circuit 2-1 through a 54 th pin and a 55 th pin of the control chip U1, and the motor driving circuit 2-1 drives the motor to control the valve transmission module 4 to work after obtaining the signal, specifically: the motor 4-1 rotates and drives the transmission gear 4-2 and the switch gear 4-3 through the gear, after the switch gear 4-3 starts to rotate, the switch ball 4-4 rotates along with the switch gear 4-3, and when the switch gear 4-3 rotates 90 degrees, the valve is completely opened, so that the watering purpose can be completed. And at this time, the switch gear 4-3 is located at a position which causes the switch in the motor drive switch detection unit 7-2 to be closed, and the level transmitted by the motor drive switch detection unit 7-2 and received by the control chip U1 becomes a high level. The control chip U1 sends a stop signal to the motor driving circuit 2-1 through the 54 th pin and the 55 th pin immediately after detecting that the 56 th pin changes from low level to high level, the switch gear 4-3 stops rotating, and the valve keeps open.

However, if the signal received by the control chip U1 is high, the 54 th pin and the 55 th pin of the control chip U1 send a status maintaining signal to the motor driving circuit 2-1, and the motor control valve train module 4 maintains the status at this time, and does not change until the level signal received by the 56 th pin of the control chip U1 changes to low.

When the watering stop time is reached, the control module 1 judges whether the level transmitted to the control module 1 by the motor transmission switch detection unit 7-2 is high level or low level, and similarly, the level signal is received through a 56 th pin of the control chip U1. If the pin 56 is at a high level, the control chip U1 sends a motor 4-1 rotation signal to the motor driving circuit 2-1 through the pin 54 and the pin 55, and the motor driving circuit 2-1 obtains the signal and then drives the motor to control the operation of the valve transmission module 4, specifically: the motor 4-1 rotates and drives the transmission gear 4-2 and the switch gear 4-3 through the gear, after the switch gear 4-3 starts to rotate, the switch ball 4-4 rotates along with the switch gear 4-3, and when the switch gear 4-3 rotates 90 degrees, the valve is completely closed, and the purpose of stopping watering can be achieved. And at this time, the switch gear 4-3 is located at a position which can cause the switch in the motor drive switch detection unit 7-2 to be switched off, and the level transmitted by the motor drive switch detection unit 7-2 and received by the control chip U1 becomes a low level. The control chip U1 sends a stop signal to the motor driving circuit 2-1 through the 54 th pin and the 55 th pin immediately after detecting that the 56 th pin is changed from high level to low level, the switch gear 4-3 stops rotating, and the valve is in a stop state all the time.

If the signal received by the control chip U1 is low level at the beginning, the 54 th pin and the 55 th pin of the control chip U1 send a status maintaining signal to the motor driving circuit 2-1, and the motor control valve transmission module 4 maintains the status at this time without changing until the level signal received by the 56 th pin of the control chip U1 becomes high level.

The above-described embodiments are only preferred embodiments of the present invention, and are not intended to limit the present invention in any way, and other variations and modifications may be made without departing from the scope of the claims.

Claims (10)

1. The utility model provides a motor drive formula timer that waters, a serial communication port, including control module (1), motor drive module (2), timing module (3) and motor control valve transmission module (4), motor drive module (2) and timing module (3) all are connected with control module (1), motor control valve transmission module (4) are connected with motor drive module (2), timing module (3) are used for setting the time of watering, control module (1) are used for controlling motor drive module (2) work, motor drive module (2) are used for driving motor control valve transmission module (4), motor control valve transmission module (4) are used for controlling the valve switching according to motor drive.

2. An electric motor driven watering timer according to claim 1, characterised in that the electric motor controlled valve transmission module (4) comprises an electric motor (4-1), a transmission gear (4-2), a switch gear (4-3) and a switch sphere (4-4), one end of the electric motor (4-1) is welded on a first pad, the other end of the electric motor (4-1) is welded on a second pad, the electric motor (4-1) is connected with the transmission gear (4-2) through gear coupling, and the switch gear (4-3) is fixedly connected with the switch sphere (4-4); the switch gear (4-3) is also connected with the transmission gear (4-2) through gear coupling; the motor (4-1) is used for driving the switch ball body (4-4) to rotate through the transmission gear (4-2) and the switch gear (4-3), and the switch ball body (4-4) is used for controlling the valve to be opened and closed.

3. An electric motor driven watering timer according to claim 1, characterized in that the control module (1) comprises a control chip U1, a liquid crystal setting circuit (1-1), a low voltage detection circuit (1-2), a clock circuit (1-3) and a filter circuit (1-4), the 36 th pin of the control chip U1 is connected with the VDD voltage output end of the power supply module (6), the 12 th pin of the control chip U1 is grounded, the control chip U1 is connected with the 55 th pin and the motor (4-1) driving circuit (2-1) through a 54 th pin, the control chip U1 is connected with the motor drive switch detection unit (7-2) through a 56 th pin, the control chip U1 is connected with the low voltage detection circuit (1-2) through a 1 st pin, the control chip U1 is connected with the clock circuit (1-3) through a 3 rd pin and a 4 th pin, the control chip U1 is connected with the filter circuit (1-4) through a 5 th pin, and the control chip U1 is connected with the liquid crystal setting circuit (1-1) through a 7 th pin, a 9 th pin, a 10 th pin and an 11 th pin.

4. The motor-driven watering timer according to claim 1, further comprising a display module (5), wherein the display module (5) is connected with the control module (1), the display module (5) comprises a transparent liquid crystal frame (5-1), a liquid crystal screen (5-2), a pressing frame (5-3), a conductive silica gel strip (5-4) and a circuit board copper sheet (5-5), the liquid crystal screen (5-2) is fixedly connected in the transparent liquid crystal frame (5-1) through the pressing frame (5-3) and the conductive silica gel strip (5-4), and the liquid crystal screen (5-2) is further connected with the control chip U1 through the circuit board copper sheet (5-5).

5. The motor-driven watering timer according to claim 4, characterized in that the timing module (3) comprises a turntable gear setting unit (3-1) and a key setting unit (3-2), the turntable gear setting unit (3-1) comprises a gear copper sheet (3-1-1), a conducting strip (3-1-2), a rotating body (3-1-3), a rotating turntable (3-1-4) and a sealing ring (3-1-5), the turntable gear setting unit is grounded through a common end of the gear copper sheet (3-1-1), the gear copper sheet (3-1-1) is further provided with a conducting strip (3-1-2), the conducting strip (3-1-2) is fixedly connected to the rotating body (3-1-3) through a screw, the rotating body (3-1-3) is further sleeved with a sealing ring (3-1-5), and the rotating turntable (3-1-4) is connected with the rotating body (3-1-3) in a matching mode.

6. An electric motor driven watering timer according to claim 1, further comprising a power supply module (6), the power supply module (6) comprising a battery (6-1), a battery filter circuit (6-2) and a voltage boost circuit (6-3), the battery (6-1) being connected to the control module (1) via the battery filter circuit (6-2).

7. A motor driven watering timer according to claim 1, characterised in that the motor drive module (2) comprises a motor drive circuit (2-1), the motor drive circuit (2-1) being connected to a battery filter circuit (6-2) via a voltage boost circuit (6-3), the motor drive circuit (2-1) being further connected to a motor control valve drive module (4); the motor driving circuit (2-1) comprises a motor driving chip U2, a capacitor C3, a capacitor C4, a capacitor C5, an inductor L2 and an inductor L3, wherein a 4 th pin of the motor driving chip U2 is connected with a 5V voltage output end of a power supply module (6), a 6 th pin of the motor driving chip U2 is connected with a 7 th pin, the 6 th pin and the 7 th pin of the motor driving chip U2 are grounded, a 2 nd pin of the motor driving chip U2 is connected with a 54 th pin of a control chip U1, a 3 rd pin of the motor driving chip U2 is connected with a 55 th pin of the control chip U1, a 5 th pin of the motor driving chip U2 is connected with a second bonding pad through the inductor L3, a 5 th pin of the motor driving chip U2 is further connected with one end of the capacitor C4, and the other end of the capacitor C4 is connected with the ground; the 8 th pin of the motor driving chip U2 is connected with the first bonding pad through an inductor L2, the 8 th pin of the motor driving chip U2 is also connected with one end of a capacitor C3, and the other end of the capacitor C3 is connected with the ground; the capacitor C5 is connected in parallel between the first pad and the second pad, the first pad is connected with one end of the motor (4-1), and the other end of the motor (4-1) is connected with the second pad.

8. An electric motor driven watering timer according to claim 6 characterised in that the battery filter circuit (6-2) comprises a battery positive conducting strip, a battery negative conducting strip, an electrolytic capacitor E1 and a ceramic capacitor C1, one end of the electrolytic capacitor E1 is connected to the battery positive conducting strip, the other end of the electrolytic capacitor E1 is connected to the battery negative conducting strip, and the ceramic capacitor is connected in parallel with the electrolytic capacitor E1.

9. A motor-driven watering timer according to claim 6, wherein the boost circuit (6-3) comprises an inductor L1, a boost chip W1, a diode D1, an electrolytic capacitor E2 and a capacitor C2, one end of the inductor L1 is connected with a positive conducting strip (3-1-2) of the battery (6-1), the other end of the inductor L1 is connected with a VIN pin of the boost chip W1, the positive electrode of the diode D1 is connected with a VIN pin of the boost chip W1, the negative electrode of the diode D1 is connected with a VOUT pin of the boost chip 5V, the VOUT pin of the boost chip is further connected with a 5V voltage output end of the power supply module (6), an electrolytic capacitor E2 is connected with the VOUT pin of the boost chip W1, the other end of the electrolytic capacitor E2 is grounded, the capacitor C2 is connected with the electrolytic capacitor E2 in parallel, and the pin of the boost chip W1 is grounded.

10. An electric motor driven watering timer according to claim 1, further comprising a detection module (7), wherein the detection module (7) comprises a turntable gear detection unit (7-1) and an electric motor driven switch detection unit (7-2), the turntable gear detection unit (7-1) and the electric motor driven switch detection unit (7-2) are both connected with the control module (1), the electric motor driven switch detection unit (7-2) is further connected with the electric motor control valve transmission module (4), and the turntable gear detection unit (7-1) is further connected with the turntable gear setting unit (3-1).

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