Direct-current electric valve driving plate

Abstract

The utility model discloses a direct current electrically operated valve drive board, including terminal VDD, COM, FRE, PB, Y2, Y3, relay K1, K3, interface J1, J3, chip 555, terminal VDD, COM external connection drive power supply, terminal FRE external connection valve locked-rotor signal, terminal PB external connection pulse signal, terminal Y2, Y3 are regulating switch, terminal S-, S + are valve opening counting input end, M-, M + external connection valve motor drive end, and the chip 555 is connected with the relay K1, K3. The direct-current valve opening degree control circuit is a driving board capable of being matched with common direct-current valve opening degree control, the control signals can be accessed through the interface J3, and the direct-current valve opening degree control circuit is simple, practical, economical and practical.

Description

Technical Field

[0001] The utility model relates to the technical field of electric valves, in particular to a DC electric valve drive board. Background Art

[0002] The application of electric valves has been quite extensive. With the demand for intelligent control, people's demand for controllable, especially intelligent electric valves, has increased. From the actual situation, ordinary electric valves are very popular because of their low price, while finished electric valves with 0-10V or 4-20ma interfaces are shunned by some people because of their doubled prices. Content of the Utility Model

[0003] In view of the deficiencies of the prior art, the utility model provides a DC electric valve drive board to solve the technical problems in the prior art.

[0004] To achieve the above purposes, the utility model is realized through the following technical solutions:

[0005] A DC electric valve drive board includes terminals VDD, COM, FRE, PB, Y2, Y3, relays K1, K3, interfaces J1, J3, and chip 555. The terminals VDD and COM are externally connected to a driving power supply. The terminal FRE is externally connected to a valve stall signal. The terminal PB is externally connected to a pulse signal. The terminals Y2 and Y3 are adjustment switches. The terminals S- and S+ are valve opening counting input terminals. The terminals M- and M+ are externally connected to a valve motor driving end. The relays K1 and K3 are valve commutation drives. The interfaces J1 and J3 are externally connected to control signals.

[0006] As a preferred technical solution of the utility model, the interfaces J1 and J3 are commonly externally connected with a wire harness to access a horn socket.

[0007] As a preferred technical solution of the utility model, the terminals S- and S+ are externally connected with a Hall position detection sensor.

[0008] As a preferred technical solution of the utility model, the terminal FRE is electrically connected to a buzzer FMQ.

[0009] The utility model provides a DC electric valve drive board, which has the following beneficial effects:

[0010] 1. The utility model is a drive board that can cooperate with the opening control of ordinary DC valves. The control signal can be accessed through the interface J3, which is simple, practical, and cost-effective;

[0011] 2. Relays K2 and K3 are for valve commutation drive. The buzzer is for audible alarm of the stall signal FRE. S+ and S- are externally connected to a Hall position detection sensor. Chip 555 completes the transformation of the position signal. PB is the output of the stable position state after hysteresis processing, serving as the counting input signal for the host computer, with strong anti-interference ability. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 FIG. is the terminal wiring diagram of the drive board proposed by the present utility model;

[0013] Figure 2 FIG. is the circuit diagram of the drive board proposed by the present utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0014] The following further describes in detail the embodiments of the present utility model with reference to the drawings and examples. The following examples are used to illustrate the present utility model, but cannot be used to limit the scope of the present utility model. In the description of the present utility model, unless otherwise specified, the meaning of "a plurality" is two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be understood as a limitation of the present utility model. In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0015] EXAMPLE

[0016] Refer to Figure 1-2 , a DC electric valve drive board, including terminals VDD, COM, FRE, PB, Y2, Y3, relays K1, K3, interfaces J1, J3, chip 555. Terminals VDD and COM are externally connected to the drive power supply. Terminal FRE is externally connected to the valve stall signal. Terminal PB is externally connected to the pulse signal. Terminals Y2 and Y3 are for adjusting switches. Terminals S- and S+ are the valve opening counting input terminals. M- and M+ are externally connected to the valve motor drive terminals. Relays K1 and K3 are for valve commutation drive. Interfaces J1 and J3 are externally connected to the control signal; Interfaces J1 and J3 are jointly externally connected with a cable to access the horn socket; Terminals S- and S+ are externally connected to a Hall position detection sensor; Terminal FRE is electrically connected to a buzzer FMQ.

[0017] Specifically,

[0018] Refer to Figure 1, the terminal VDD and COM are externally connected to a DC 24V valve drive power supply. The terminal FRE is the valve stall signal. The terminal PB is the opening pulsation unit when the valve rotates. The terminals Y2 and Y3 are for manual opening increase or decrease adjustment. The terminals S- and S+ are for valve opening count input. M- and M+ are for valve motor drive;

[0019] Reference Figure 2 , the relays K2 and K3 are for valve commutation drive. The buzzer is for the sound alarm of the stall signal FRE. S+ and S- are externally connected to a Hall position detection sensor. The chip 555 completes the position signal transformation. PB is the stable position state output after hysteresis processing and serves as the counting input signal for the upper computer, with strong anti-interference ability.

[0020] The above is only the preferred specific implementation mode of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution of the present utility model and its inventive concept, making equivalent replacements or changes should be covered within the protection scope of the present utility model. For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model.

Claims

1. A DC electric valve drive board, comprising terminals VDD, COM, FRE, PB, Y2, Y3, relays K1, K3, interfaces J1, J3, and chip 555, characterized in that, The terminals VDD and COM are externally connected to a driving power supply, the terminal FRE is externally connected to a valve blocked rotation signal, the terminal PB is externally connected to a pulse signal, the terminals Y2 and Y3 are adjustment switches, the terminals S- and S+ are valve opening count input terminals, M- and M+ are externally connected to the valve motor drive terminals, the relays K1 and K3 are for valve commutation drive, and the interfaces J1 and J3 are externally connected to control signals.

2. The DC motor-driven valve drive board according to claim 1, characterized in that, The interfaces J1 and J3 are commonly externally connected to a flat cable that is connected to a horn socket.

3. The DC electric valve drive board according to claim 1, characterized in that, The terminals S- and S+ are externally connected to a Hall position detection sensor.

4. A DC electric valve drive board according to claim 1, characterized in that, The terminal FRE is electrically connected to a buzzer FMQ.

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