A smart control type solenoid valve

Abstract

This utility model discloses an intelligent control type solenoid valve, relating to the field of solenoid valve technology. It includes a controller main control unit, whose input terminals are connected to a lithium battery pack and a WIFI communication module. The input terminal of the lithium battery pack is connected to a photovoltaic charging module, and its output terminal is connected to the WIFI communication module. The output terminal of the controller main control unit is connected to the WIFI communication module and a power output module, with the power output module's output terminal connected to the solenoid valve. The photovoltaic charging module charges the lithium battery pack via a charging module on a circuit board, and the lithium battery pack provides continuous power to the controller main control unit and the WIFI communication module. After receiving a signal from the WIFI communication module, the controller main control unit energizes the solenoid valve, and the power output module controls the normal operation of the solenoid valve through a drive circuit. This achieves the purpose of intelligent control.

Description

Technical Field

[0001] This utility model relates to the field of electromagnetic valve technology, and in particular to an intelligent control electromagnetic valve. Background Technology

[0002] Traditional intelligent control requires additional configuration of PLCs, relay modules, control cabinets, etc., and a single PLC system is expensive, requiring programming and debugging services. Traditional control of solenoid valves relies on local signals, and solenoid valves can only be controlled by local switches, relays, or PLCs, making cross-regional operation impossible and resulting in low management efficiency. Utility Model Content

[0003] The purpose of this invention is to provide an intelligent control solenoid valve. A photovoltaic charging module charges a lithium battery pack via a circuit board charging module. The lithium battery pack provides continuous power to the controller's main control unit and the WIFI communication module. After receiving a signal from the WIFI communication module, the controller's main control unit energizes the solenoid valve. The power output module controls the normal operation of the solenoid valve through a drive circuit. This achieves intelligent control and solves the aforementioned problems.

[0004] To achieve the above objectives, this utility model provides the following technical solution: an intelligent control type solenoid valve, including a controller main control unit, wherein the input terminal of the controller main control unit is connected to a lithium battery pack and a WIFI communication module respectively, the input terminal of the lithium battery pack is connected to a photovoltaic charging module, and the output terminal of the lithium battery pack is connected to the WIFI communication module;

[0005] The output of the controller's main control unit is connected to a WIFI communication module and a power output module, and the output of the power output module is connected to a solenoid valve.

[0006] Preferably, pin 4 of the TP4056 chip U1 of the controller main control unit is connected in series with diode D1 and pin 3 of the lithium battery pack, wherein diode D1 is used for the unidirectional flow of current from the lithium battery pack into the controller main control unit.

[0007] Pins 2 and 3 of the TP4056 chip U1 are connected to an LC filter consisting of capacitor C4 and inductor L1. The LC filter is connected to the drive circuit through parallel capacitors C2 and C3 and resistor R3.

[0008] Preferably, pin 5 of chip U2 of the STEM32 in the power output module is connected to an RC parallel circuit. The RC parallel circuit and resistor R5 are connected to the base of transistor Q1. The emitter of transistor Q1 is connected in series with capacitor C8 and collector of transistor Q1, which are connected to the parallel point of the drive circuit and resistor R7. Resistors R7 and R8 are connected to the WIFI communication module.

[0009] Preferably, the driving circuit includes a field-effect transistor T1 and an optocoupler OT1. The gate of the field-effect transistor T1 is connected to a transistor Q1, the drain of the field-effect transistor T1 is connected to a TP4056 chip U1, the source of the field-effect transistor T1 is connected to the optocoupler OT1, and the optocoupler OT1 is connected to a solenoid valve.

[0010] Preferably, pin 1 of the IP2320 chip U4 of the photovoltaic charging module is connected in series with a light-emitting diode LED3 and a resistor R13 to the lithium battery pack.

[0011] The technical effects and advantages of this utility model are as follows:

[0012] This invention's photovoltaic charging module charges a lithium battery pack via a circuit board-connected charging module. The lithium battery pack provides continuous power to the controller's main control unit and the WIFI communication module. Upon receiving a signal from the WIFI communication module, the controller's main control unit energizes the solenoid valve. The power output module then controls the solenoid valve's normal operation via a drive circuit. Simultaneously, the controller's main control unit sends an electrical signal back to the WIFI communication module for data storage on the host computer, thus achieving intelligent control and resolving the issue of the solenoid valve requiring controller control during operation. The built-in control module allows for remote control of the solenoid valve, facilitating maintenance. Powered by solar panels and lithium batteries, it solves the customer's power supply problem and saves energy. Attached Figure Description

[0013] Figure 1 This is a block diagram of the modules of this utility model;

[0014] Figure 2 This is the circuit schematic diagram of this utility model.

[0015] In the picture:

[0016] 1. Controller main control unit; 2. Lithium battery pack; 3. WIFI communication module; 4. Power output module; 5. Solenoid valve; 6. Photovoltaic charging module. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Please see Figures 1-2To achieve the above objectives, the present invention provides the following technical solution: an intelligent control type solenoid valve, including a controller main control unit 1, wherein the input terminal of the controller main control unit 1 is connected to a lithium battery pack 2 and a WIFI communication module 3 respectively, the input terminal of the lithium battery pack 2 is connected to a photovoltaic charging module 6, and the output terminal of the lithium battery pack 2 is connected to the WIFI communication module 3.

[0019] The output of the controller main control unit 1 is connected to the WIFI communication module 3 and the power output module 4, and the output of the power output module 4 is connected to the solenoid valve 5.

[0020] Pin 1 of the IP2320 chip U4 of the photovoltaic charging module 6 is connected in series with LED3 and resistor R13 to the lithium battery pack 2.

[0021] Specifically, pin 4 of the TP4056 chip U1 of the controller main control unit 1 is connected in series with diode D1 and pin 3 of the lithium battery pack 2. Diode D1 is used for the unidirectional flow of current from the lithium battery pack 2 into the controller main control unit 1.

[0022] Pins 2 and 3 of the TP4056 chip U1 are connected to an LC filter consisting of capacitor C4 and inductor L1. The LC filter is connected to the drive circuit through capacitors C2 and C3 in parallel and resistor R3. By setting multiple capacitors and resistors in parallel over the widest possible frequency range, a low-impedance power path is provided for the load. This not only broadens the filtering frequency band but also provides better transient response. After parallel connection, the large capacitor is responsible for the low frequency band and the small capacitor is responsible for the high frequency band. Together, they maintain a very low impedance over an extremely wide frequency range from low to high. In addition, resistor R3 consumes the energy of oscillation in the circuit, suppressing or eliminating oscillation and making the system response more stable. At the same time, a parallel resistor can provide a dummy load to ensure that the controller main control unit 1 always has a minimum current flow, thus ensuring stable operation.

[0023] LC filters are used to suppress high-frequency noise, suppress current surges, and store energy, thereby providing a stable, smooth, and clean DC voltage to the drive circuit.

[0024] The driving circuit includes a field-effect transistor T1 and an optocoupler OT1. The gate of the field-effect transistor T1 is connected to the transistor Q1, the drain of the field-effect transistor T1 is connected to the TP4056 chip U1, the source of the field-effect transistor T1 is connected to the optocoupler OT1, and the optocoupler OT1 is connected to the solenoid valve 5.

[0025] Optocoupler OT1 is used to protect the controller: Solenoid valve 5 generates a very high back electromotive force (EMF) during energization and de-energization. If this spike is transmitted back to the TP4056 chip U1, it can easily damage the fragile TP4056 chip U1 or the STEM32 chip U, causing permanent damage. Optocoupler OT1 completely isolates the TP4056 chip U1 from the power ground driving the solenoid valve. This high-voltage spike cannot pass through the optocoupler, thus protecting the expensive controller. Simultaneously, the optocoupler converts the input electrical signal into an optical signal, which is then converted back into an electrical signal by an internal photosensitive element.

[0026] Pin 5 of chip U2 of STEM32 in power output module 4 is connected to an RC parallel circuit. The RC parallel circuit and resistor R5 are connected to the base of transistor Q1. The emitter of transistor Q1 is connected in series with capacitor C8 and collector of transistor Q1, which are connected to the parallel point of drive circuit and resistor R7. Resistors R7 and R8 are connected to WIFI communication module 3.

[0027] The power output module 4 operates on a low voltage, typically outputting 3.3V or 5V DC, while the solenoid valve is a power load, usually requiring 12V or 24V DC. Pulse control is achieved through a specially designed drive circuit.

[0028] The output of power output module 4 is directly connected to the gate of MOSFET T1. When the pulse is high, MOSFET T1 is turned on, and a large current flows from the power supply through solenoid valve 5 and MOSFET T1, causing solenoid valve 5 to operate. When the pulse is low, MOSFET T1 is turned off, solenoid valve 5 is de-energized, and resistor R7 suppresses oscillation to prevent overshoot caused by excessively fast switching.

[0029] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A smart control type solenoid valve comprising a controller master unit (1), characterized in that, The input terminal of the controller main control unit (1) is connected to the lithium battery pack (2) and the WIFI communication module (3) respectively. The input terminal of the lithium battery pack (2) is connected to the photovoltaic charging module (6), and the output terminal of the lithium battery pack (2) is connected to the WIFI communication module (3). The output of the controller main control unit (1) is connected to the WIFI communication module (3) and the power output module (4), and the output of the power output module (4) is connected to the solenoid valve (5).

2. The intelligent control type electromagnetic valve according to claim 1, wherein The TP4056 chip U1 of the controller main control unit (1) is connected in series with diode D1 and connected to pin 3 of lithium battery pack (2). Diode D1 is used for the current of lithium battery pack (2) to flow into the controller main control unit (1) in one phase. Pins 2 and 3 of the TP4056 chip U1 are connected to an LC filter consisting of capacitor C4 and inductor L1. The LC filter is connected to the drive circuit through parallel capacitors C2 and C3 and resistor R3.

3. The intelligent control type electromagnetic valve according to claim 1, wherein Pin 5 of chip U2 of STEM32 in the power output module (4) is connected to an RC parallel circuit. The RC parallel circuit and resistor R5 are connected to the base of transistor Q1. The emitter of transistor Q1 is connected in series with capacitor C8 and collector of transistor Q1, which are connected to the parallel point of drive circuit and resistor R7. Resistors R7 and R8 are connected to WIFI communication module (3).

4. The intelligent control type electromagnetic valve according to claim 2 or 3, wherein The driving circuit includes a field-effect transistor T1 and an optocoupler OT1. The gate of the field-effect transistor T1 is connected to the transistor Q1, the drain of the field-effect transistor T1 is connected to the TP4056 chip U1, the source of the field-effect transistor T1 is connected to the optocoupler OT1, and the optocoupler OT1 is connected to the solenoid valve (5).

5. The intelligent control type electromagnetic valve according to claim 1, wherein Pin 1 of the IP2320 chip U4 of the photovoltaic charging module (6) is connected in series with LED3 and resistor R13 to the lithium battery pack (2).

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