Electronic valve control device

Abstract

The utility model relates to an electronic valve control device. The electronic valve control device comprises a voltage regulating circuit, an external power supply and a reference power supply, a first input end of the voltage regulating circuit is connected with an external power supply, a second input end of the voltage regulating circuit is connected with a reference power supply, and an output end of the voltage regulating circuit is connected with the electronic valve; the external power supply is used for inputting power supply voltage to the voltage regulation circuit; the reference power supply is used for inputting reference voltage to the voltage regulation circuit; and the voltage regulation circuit is used for generating regulation voltage according to the power supply voltage and the reference voltage and outputting the regulation voltage to the electronic valve. The device can improve the power supply stability of the electronic valve.

Description

Technical Field

[0001] This application relates to the technical field of electronic valve control, and particularly to an electronic valve control device. Background Art

[0002] Currently, in the water circulation system of new energy vehicles, an electronic valve is often provided. By collecting the real-time temperatures of the drive motor, battery, and cockpit, analyzing the heat demand, and adjusting the flow rate to each position through the electronic valve, the motor, battery, and cockpit are placed in an ideal temperature environment to achieve efficient energy utilization.

[0003] In traditional technologies, to prevent the force of the electronic valve hitting the end point from being too large, which may cause the risk of broken teeth, the electronic valve adopts a duty cycle control method. However, the power supply to the brushed motor is also unstable, resulting in an unstable force output by the electronic valve. It may not rotate under low voltage conditions and may experience broken teeth under high voltage conditions.

[0004] It can be seen that the current electronic valve control method still has the problem of unstable power supply to the electronic valve. Utility Model Content

[0005] Based on this, in view of the above technical problems, it is necessary to provide an electronic valve control device that can improve the power supply stability of the electronic valve.

[0006] This application provides an electronic valve control device applied to an electronic valve. The electronic valve control device includes a voltage regulation circuit, an external power supply, and a reference power supply;

[0007] The first input terminal of the voltage regulation circuit is connected to the external power supply, the second input terminal of the voltage regulation circuit is connected to the reference power supply, and the output terminal of the voltage regulation circuit is connected to the electronic valve;

[0008] The external power supply is used to input a supply voltage to the voltage regulation circuit;

[0009] The reference power supply is used to input a reference voltage to the voltage regulation circuit;

[0010] The voltage regulation circuit is used to generate a regulated voltage according to the supply voltage and the reference voltage, and output the regulated voltage to the electronic valve.

[0011] In one embodiment, the electronic valve includes a control device, a motor, a valve core, and a valve body. The control device is used to drive the motor based on the regulated voltage so that the valve core moves within the valve body.

[0012] In one embodiment, the voltage regulation circuit includes: a comparator circuit, a first power supply circuit, and a second power supply circuit;

[0013] The first input terminal of the comparator circuit is connected to an external power supply, the second input terminal of the comparator circuit is connected to a reference power supply, and the third input terminal of the comparator circuit is connected to the external power supply;

[0014] The input terminal of the first power supply circuit is connected to the output terminal of the comparator circuit, and the output terminal of the first power supply circuit is connected to the electronic valve;

[0015] The first input terminal of the second power supply circuit is connected to the output terminal of the comparator circuit, the second input terminal of the second power supply circuit is connected to the reference power supply, and the output terminal of the second power supply circuit is connected to the electronic valve.

[0016] In one embodiment,

[0017] The comparator circuit includes a comparator;

[0018] The non-inverting input terminal of the comparator circuit is connected to an external power supply, the inverting input terminal of the comparator circuit is connected to a reference power supply, the positive power supply terminal of the comparator is connected to the external power supply, the negative power supply terminal of the comparator is grounded, and the output terminal of the comparator is respectively connected to the input terminal of the first power supply circuit and the first input terminal of the second power supply circuit.

[0019] In one embodiment, the first power supply circuit includes a first resistor;

[0020] One end of the first resistor is connected to the output terminal of the comparator circuit, and the other end of the first resistor is connected to the electronic valve.

[0021] In one embodiment, the second power supply circuit includes a switching tube;

[0022] The gate of the switching tube is connected to the output terminal of the comparator circuit, the source of the switching tube is connected to the reference power supply, and the drain of the switching tube is connected to the electronic valve.

[0023] In one embodiment, the second power supply circuit further includes a second resistor. One end of the second resistor is connected to the drain of the switching tube, and the other end of the second resistor is grounded.

[0024] In one embodiment, the range of the reference voltage is 9V to 16V.

[0025] In one embodiment, the voltage regulating circuit is a PI control device.

[0026] In one embodiment, the reference power supply is a voltage regulator.

[0027] The above-mentioned electronic valve control device has its first input terminal of the voltage regulation circuit connected to an external power supply, its second input terminal connected to a reference power supply, and its output terminal connected to the electronic valve. The external power supply inputs a supply voltage to the voltage regulation circuit, and the reference power supply inputs a reference voltage to the voltage regulation circuit. The voltage regulation circuit generates a regulated voltage based on the supply voltage and the reference voltage and outputs the regulated voltage to the electronic valve, thereby providing a relatively stable voltage output to the electronic valve and achieving the effect of improving the power supply stability of the electronic valve. Description of the Drawings

[0028] Figure 1 It is a structural block diagram of an electronic valve control device in an embodiment.

[0029] Figure 2 It is a circuit schematic diagram of an electronic valve control device in an embodiment.

[0030] Figure 3 It is a schematic diagram of the current direction of the second power supply circuit in an embodiment.

[0031] Figure 4 It is a schematic diagram of the current direction of the first power supply circuit in an embodiment. Detailed Embodiments

[0032] In order to make the objectives, technical solutions, and advantages of this application clearer, the following further elaborates on this application in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely for explaining this application and are not used to limit this application.

[0033] In one embodiment, as Figure 1 shown, an electronic valve control device is provided, which is applied to an electronic valve 4. The electronic valve control device includes a voltage regulation circuit 1, an external power supply 2, and a reference power supply 3.

[0034] The first input terminal of the voltage regulation circuit 1 is connected to the external power supply 2, the second input terminal of the voltage regulation circuit 1 is connected to the reference power supply 3, and the output terminal of the voltage regulation circuit 1 is connected to the electronic valve 4.

[0035] The external power supply 2 is used to input a supply voltage to the voltage regulation circuit 1.

[0036] The reference power supply 3 is used to input a reference voltage to the voltage regulation circuit 1.

[0037] The voltage regulation circuit 1 is used to generate a regulated voltage based on the supply voltage and the reference voltage and output the regulated voltage to the electronic valve 4.

[0038] Among them, the voltage regulation circuit 1 includes two input terminals. Among them, the first input terminal is connected to the external power supply 2, and the second input terminal is connected to the reference power supply 3. According to the supply voltage and the reference voltage input by the external power supply 2 and the reference power supply 3, a calibrated regulation voltage is generated and input to the electronic valve 4. By using the reference voltage provided by the reference power supply 3 to regulate the supply voltage, it is possible to avoid the instability of the output force of the electronic valve 4 caused by voltage fluctuations, and reduce the starting difficulty at low voltages and the overload damage at high voltages.

[0039] The external power supply 2 can be the power source in the system. Exemplarily, in a new energy vehicle system, the external power supply 2 can be the vehicle-mounted battery and supply power to the electronic valve 4; in other circulation systems such as water circulation and air circulation, the power source used in this circulation system can also be used as the external power supply 2 and supply power to the electronic valve 4.

[0040] It can be understood that the external power supply 2 not only supplies power to the electronic valve 4, but also needs to supply power to other electrical components. Therefore, situations such as load changes may occur, resulting in relatively low stability of the voltage output to the electronic valve 4.

[0041] The reference power supply 3 is used to provide a stable reference voltage, that is, the reference voltage. Exemplarily, the reference voltage can be realized by means of a Zener diode, a bandgap reference, an adjustable reference voltage source, a crystal oscillator, a crystal oscillator, etc.

[0042] In the traditional technology, when the external power supply 2 supplies power to the electronic valve 4, the actual supply voltage may exceed the maximum available voltage, resulting in tooth breakage at high voltages. In this embodiment, by connecting the reference power supply 3 to the voltage regulation circuit 1, the regulation voltage output to the electronic valve 4 can be limited within the range of the reference voltage, thus avoiding the situation of high-voltage tooth breakage.

[0043] An electronic valve control device provided in this embodiment connects the external power supply through the first input terminal of the voltage regulation circuit, connects the reference power supply through the second input terminal of the voltage regulation circuit, and the output terminal of the voltage regulation circuit is connected to the electronic valve; the external power supply inputs the supply voltage to the voltage regulation circuit; the reference power supply inputs the reference voltage to the voltage regulation circuit; the voltage regulation circuit generates a regulation voltage according to the supply voltage and the reference voltage, and outputs the regulation voltage to the electronic valve, so as to provide a relatively stable voltage output to the electronic valve, achieving the effect of improving the power supply stability of the electronic valve.

[0044] In one embodiment, the electronic valve includes a control device, a motor, a valve core, and a valve body. The control device is used to drive the motor based on the regulation voltage so that the valve core moves in the valve body.

[0045] Among them, the control device of the electronic valve is used to generate a corresponding drive signal based on the regulation voltage, and the generated drive signal is input into the motor.

[0046] The motor is the actuator of the electronic valve, which can convert electrical energy into mechanical energy, thereby driving the valve core to move within the valve body, so that the motor can drive the valve core and the valve body based on the drive signal.

[0047] The valve core is the part of the electronic valve that contacts the fluid or gas. It can be made of corrosion-resistant and high-strength materials to withstand the pressure and chemical erosion of the fluid. The shape and size of the valve core can be set based on actual needs to quickly and accurately respond to the drive of the motor under different working conditions, and realize the opening and closing of the channel.

[0048] The valve body can be the housing of the electronic valve, which is used to accommodate the valve core and other internal components, and provides the inlet and outlet interfaces for the fluid or gas. The selected valve body material can have good mechanical strength and sealing performance, be able to withstand the internal and external pressure differences and the erosion of the fluid medium, ensure the smooth flow of the fluid within the valve body, and reduce the pressure loss and turbulence phenomenon.

[0049] An electronic valve control device provided in this embodiment receives the regulation voltage through the control device, converts it into mechanical energy via the motor, drives the valve core to move precisely within the valve body, thereby controlling the flow state of the fluid, improving the response speed and control accuracy of the electronic valve, reducing the potential failure rate caused by voltage fluctuations, and enhancing the reliability and service life of the electronic valve.

[0050] In one of the embodiments, the voltage regulation circuit includes: a comparator circuit, a first power supply circuit, and a second power supply circuit;

[0051] The first input terminal of the comparator circuit is connected to an external power supply, the second input terminal of the comparator circuit is connected to a reference power supply, and the third input terminal of the comparator circuit is connected to the external power supply;

[0052] The input terminal of the first power supply circuit is connected to the output terminal of the comparator circuit, and the output terminal of the first power supply circuit is connected to the electronic valve;

[0053] The first input terminal of the second power supply circuit is connected to the output terminal of the comparator circuit, the second input terminal of the second power supply circuit is connected to the reference power supply, and the output terminal of the second power supply circuit is connected to the electronic valve.

[0054] Among them, the comparator circuit is used to compare the power supply voltage of the external power supply with the reference voltage of the reference power supply, and then output a comparison signal. The comparator circuit can be composed of an operational amplifier, and the first input terminal can be connected to the external power supply, and the second input terminal can be connected to the reference power supply. The comparator circuit can output a first adjustment voltage when the power supply voltage of the external power supply is greater than the reference voltage of the reference power supply, and output a second adjustment voltage when the power supply voltage of the external power supply is less than the reference voltage.

[0055] Exemplarily, the first adjustment voltage and the second adjustment voltage can be the reference voltage and the power supply voltage respectively. That is, when the power supply voltage of the external power supply is greater than the reference voltage of the reference power supply, the reference voltage is output, and when the power supply voltage is less than the reference voltage, the power supply voltage is output. Thus, the voltage output to the electronic valve can be kept below the reference voltage, thereby avoiding the situation of high-voltage tooth breakage.

[0056] The input terminal of the first power supply circuit is connected to the output terminal of the comparator circuit, and the output terminal is connected to the electronic valve. It can be that when outputting the power supply voltage, the first power supply circuit performs voltage transmission; the first input terminal of the second power supply circuit is connected to the output terminal of the comparator circuit, the second input terminal is connected to the reference power supply, and the output terminal is connected to the electronic valve. It can be that when outputting the reference voltage, the second power supply circuit performs voltage transmission.

[0057] An electronic valve control device provided in this embodiment, through the feedback mechanism of the comparator circuit, and through the first power supply circuit and the second power supply circuit respectively sending the power supply voltage or the reference voltage to the electronic valve, enables the electronic valve to obtain a stable and accurate driving voltage regardless of how the external power supply fluctuates, thereby achieving the effects of improving the control accuracy of the electronic valve and improving the power supply stability of the electronic valve.

[0058] In one of the embodiments,

[0059] The comparator circuit includes a comparator;

[0060] The non-inverting input terminal of the comparator circuit is connected to the external power supply, the inverting input terminal of the comparator circuit is connected to the reference power supply, the positive power supply terminal of the comparator is connected to the external power supply, the negative power supply terminal of the comparator is grounded, and the output terminal of the comparator is respectively connected to the input terminal of the first power supply circuit and the first input terminal of the second power supply circuit.

[0061] Among them, the comparator includes a non-inverting input terminal, an inverting input terminal, a positive power supply terminal, a negative power supply terminal and an output terminal. Among them, the non-inverting input terminal and the positive power supply terminal are both connected to the external power supply, the inverting input terminal is connected to the reference power supply, and the negative power supply terminal is grounded. The non-inverting input terminal can be used to receive the power supply voltage, the inverting input terminal can receive the reference voltage, the positive power supply terminal provides the power supply voltage for the normal operation of the comparator, and the negative power supply terminal is grounded to form a reference point for the power supply voltage.

[0062] The comparison signal provided by the output terminal can be the comparison result between the supply voltage and the reference voltage.

[0063] An electronic valve control device provided in this embodiment monitors the voltage of the external power supply in real time through a comparator circuit and compares it with the stable voltage of the reference power supply. Once a deviation is detected, the subsequent voltage regulation process will be triggered to ensure the stable operation of the electronic valve, achieving the effect of improving the power supply stability of the electronic valve.

[0064] In one embodiment, the first power supply circuit includes a first resistor;

[0065] One end of the first resistor is connected to the output terminal of the comparator circuit, and the other end of the first resistor is connected to the electronic valve.

[0066] Wherein, the first resistor is used to limit the current of the streamline electronic valve, adjust the voltage of the electronic valve using the voltage division principle, and can also play a certain filtering effect to reduce the influence of power supply noise on the electronic valve.

[0067] An electronic valve control device provided in this embodiment ensures that the electronic valve will not be damaged due to excessive transient voltage by using the first resistor as a part of the first power supply circuit, and at the same time ensures sufficient driving ability, which can achieve the effect of improving the power supply stability of the electronic valve.

[0068] In one embodiment, the second power supply circuit includes a switching tube;

[0069] The gate of the switching tube is connected to the output terminal of the comparator circuit, the source of the switching tube is connected to the reference power supply, and the drain of the switching tube is connected to the electronic valve.

[0070] Wherein, the switching tube can be a MOSFET (Metal Oxide Semiconductor Field Effect Transistor), IGBT (Insulated Gate Bipolar Transistor) or BJT (Bipolar Junction Transistor), etc. Exemplarily, the control electrode of the switching tube (such as the gate of the MOSFET) can be connected to the output terminal of the comparator circuit, the source or emitter can be connected to the reference power supply, and the drain or collector can be connected to the electronic valve.

[0071] In this embodiment, the control electrode of the switching tube receives the output signal of the comparator circuit. When the output signal is at a low level, the switching tube conducts and allows current to pass through; when the output signal is at a high level, the switching tube cuts off and blocks the current from passing through. Thus, when the external voltage is higher than the reference voltage, the output voltage is 0, and the current of the reference voltage is allowed to flow from the source to the drain, so as to realize supplying power to the electronic valve with the reference voltage through the second power supply circuit; when the reference voltage is higher than the external voltage, the output voltage is the supply voltage, and the current of the reference voltage is not allowed to flow from the source to the drain, so as to supply power to the electronic valve with the external voltage through the first power supply circuit.

[0072] An electronic valve control device provided by this embodiment can achieve efficient and precise control of the power supply to the electronic valve by using a switching tube as a key component of the second power supply circuit, and can effectively reduce energy consumption and improve the performance and reliability of the power supply.

[0073] In one embodiment, the second power supply circuit further includes a second resistor;

[0074] One end of the second resistor is connected to the drain of the switching tube, and the other end of the second resistor is grounded.

[0075] Among them, one end of the second resistor can be connected to the drain of the switching tube, and the other end is grounded, so as to provide a clear discharge path for the charge and ensure the safe and stable operation of the circuit.

[0076] An electronic valve control device provided by this embodiment can better protect the switching tube by adding a second resistor to the second power supply circuit, avoid device damage caused by transient voltages and current spikes generated during the switching process, and can achieve the effect of improving the power supply stability of the electronic valve.

[0077] In one embodiment, the range of the reference voltage is 9V to 16V.

[0078] An electronic valve control device provided by this embodiment can provide a safe and flexible power supply environment for the electronic valve by setting the reference voltage range to 9V to 16V, enabling the electronic valve to operate stably under a wide range of conditions, while reducing potential failures and performance degradation caused by voltage fluctuations, and can achieve the effect of improving the power supply stability of the electronic valve.

[0079] In one embodiment, the voltage regulation circuit is a PI control device.

[0080] Among them, the voltage regulation circuit can be a PI control device, including proportional control and integral control. Among them, proportional control adjusts the control amount according to the size of the error. The larger the error, the larger the control amount, which helps to quickly respond to the error. Integral control adjusts the control amount by accumulating the integral of the error over time, thereby eliminating the static error.

[0081] In this embodiment, the PI control circuit as the voltage regulation circuit can calculate the error between the supply voltage of the external power supply and the reference voltage, calculate the contribution of the proportional term through the proportional-integral principle, calculate the integral of the error over time, and multiply it by the reciprocal of the integral time constant to obtain the contribution of the integral term. Add the proportional term and the integral term to obtain the total control signal, which is used to adjust the output of the voltage regulation circuit, and further control the supply voltage of the electronic valve.

[0082] An electronic valve control device provided in this embodiment can dynamically adjust its output through PI control to cope with fluctuations in the external power supply voltage, ensuring that the electronic valve is always in the best working state, and can achieve the effect of improving the power supply stability of the electronic valve.

[0083] In one embodiment, the reference power supply is a voltage regulator.

[0084] Among them, the voltage regulator may include, but is not limited to, a linear voltage regulator, a switching mode voltage regulator, etc.

[0085] An electronic valve control device provided in this embodiment can improve the stability and reliability of the electronic valve control system by setting the reference power supply as a voltage regulator. Because even if the external power supply voltage fluctuates, the electronic valve can obtain a consistent supply voltage, and the effect of improving the power supply stability of the electronic valve can be achieved.

[0086] To more clearly elaborate on the technical solution of this application, this application also provides a detailed embodiment.

[0087] In one embodiment, as Figure 2 shown, an electronic valve control device is provided, which is applied to an electronic valve 4. The electronic valve control device includes a voltage regulation circuit 1, an external power supply 2, and a reference power supply 3.

[0088] The first input terminal of the voltage regulation circuit 1 is connected to the external power supply 2, the second input terminal of the voltage regulation circuit 1 is connected to the reference power supply 3, and the output terminal of the voltage regulation circuit 1 is connected to the electronic valve 4;

[0089] The external power supply 2 is used to input a supply voltage to the voltage regulation circuit 1;

[0090] The reference power supply 3 is a voltage regulator, which is used to input a reference voltage to the voltage regulation circuit 1;

[0091] The voltage regulation circuit 1 is used to generate a regulated voltage according to the supply voltage and the reference voltage, and output the regulated voltage to the electronic valve 4.

[0092] The electronic valve 4 includes a control device, a motor, a valve core, and a valve body. The control device is used to drive the motor based on the regulated voltage so that the valve core moves in the valve body.

[0093] The voltage regulation circuit 1 includes: a comparator circuit 11, a first power supply circuit 12, and a second power supply circuit 13;

[0094] The first input terminal of the comparator circuit 11 is connected to the external power supply 2, the second input terminal of the comparator circuit 11 is connected to the reference power supply 3, and the third input terminal of the comparator circuit 11 is connected to the external power supply 2;

[0095] The input terminal of the first power supply circuit 12 is connected to the output terminal of the comparator circuit 11, and the output terminal of the first power supply circuit 12 is connected to the electronic valve 4. In Figure 2 it is the red frame;

[0096] The first input terminal of the second power supply circuit 13 is connected to the output terminal of the comparator circuit 11, the second input terminal of the second power supply circuit 13 is connected to the reference power supply 3, and the output terminal of the second power supply circuit 13 is connected to the electronic valve 4; in Figure 2 it is the blue frame.

[0097] The comparator circuit 11 includes a comparator; the non-inverting input terminal of the comparator circuit 11 is connected to the external power supply 2, the inverting input terminal of the comparator circuit 11 is connected to the reference power supply 3, the positive power supply terminal of the comparator is connected to the external power supply 2, the negative power supply terminal of the comparator is grounded, and the output terminal of the comparator is respectively connected to the input terminal of the first power supply circuit 12 and the first input terminal of the second power supply circuit 13.

[0098] The first power supply circuit 12 includes a first resistor 121; one end of the first resistor 121 is connected to the output terminal of the comparator circuit 11, and the other end of the first resistor 121 is connected to the electronic valve 4.

[0099] The second power supply circuit 13 includes a switching tube 131 and a second resistor 132. Among them, the gate of the switching tube 131 is connected to the output terminal of the comparator circuit, the source of the switching tube 131 is connected to the reference power supply 3, the drain of the switching tube 131 is respectively connected to the second resistor 132 and the electronic valve 4, and the second resistor 132 is grounded.

[0100] The range of the reference voltage is 9V to 16V.

[0101] As Figure 3 shown, when the supply voltage is greater than the reference voltage, the output voltage of the comparator is 0, then the switching tube 131 conducts, and the second power supply circuit 13 supplies power. The reference voltage of the reference power supply 3 is provided to the electronic valve 4 through the switching tube 131.

[0102] As Figure 4 shown, when the reference voltage is greater than or equal to the supply voltage, the output voltage of the comparator is the supply voltage, then the switching tube 131 is turned off, and the external voltage output by the comparator is supplied to the electronic valve 4 through the first power supply circuit 12.

[0103] An electronic valve control device provided in this embodiment is connected to an external power supply through the first input end of a voltage regulation circuit, and a reference power supply is connected to the second input end of the voltage regulation circuit. The output end of the voltage regulation circuit is connected to the electronic valve. The external power supply inputs a supply voltage to the voltage regulation circuit, and the reference power supply inputs a reference voltage to the voltage regulation circuit. The voltage regulation circuit generates a regulated voltage based on the supply voltage and the reference voltage and outputs the regulated voltage to the electronic valve, thereby providing a relatively stable voltage output to the electronic valve and achieving the effect of improving the power supply stability of the electronic valve. The control device receives the regulated voltage, converts it into mechanical energy through a motor, and drives the valve core to move precisely in the valve body, thereby controlling the flow state of the fluid, improving the response speed and control accuracy of the electronic valve, reducing the potential failure rate caused by voltage fluctuations, and enhancing the reliability and service life of the electronic valve. Through the feedback mechanism of the comparator circuit, and by sending the supply voltage or the reference voltage to the electronic valve through the first power supply circuit and the second power supply circuit respectively, no matter how the external power supply fluctuates, the electronic valve can obtain a stable and accurate driving voltage, thereby achieving the effects of improving the control accuracy of the electronic valve and the power supply stability of the electronic valve. The comparator circuit monitors the voltage of the external power supply in real time and compares it with the stable voltage of the reference power supply. Once a deviation is detected, the subsequent voltage regulation process will be triggered to ensure the stable operation of the electronic valve and achieve the effect of improving the power supply stability of the electronic valve. By using the first resistor as part of the first power supply circuit, it is ensured that the electronic valve will not be damaged due to excessive transient voltage, and at the same time, sufficient driving ability is guaranteed, which can achieve the effect of improving the power supply stability of the electronic valve. By using a switching tube as a key component of the second power supply circuit, efficient and precise control of the power supply to the electronic valve can be achieved, and the effects of effectively reducing energy consumption and improving the performance and reliability of the power supply can be achieved. By adding a second resistor to the second power supply circuit, the switching tube can be better protected, avoiding device damage caused by transient voltage and current spikes generated during the switching process, which can achieve the effect of improving the power supply stability of the electronic valve. Setting the reference voltage range to 9V to 16V can provide a safe and flexible power supply environment for the electronic valve, enabling the electronic valve to operate stably under a wide range of conditions, while reducing potential failures and performance degradation caused by voltage fluctuations, which can achieve the effect of improving the power supply stability of the electronic valve. By setting the reference power supply as a voltage regulator, the stability and reliability of the electronic valve control system can be improved because the electronic valve can obtain a consistent supply voltage even if the external power supply voltage fluctuates, which can achieve the effect of improving the power supply stability of the electronic valve.

[0104] It should be noted that the user information (including but not limited to user device information, user personal information, etc.) and data (including but not limited to data for analysis, stored data, displayed data, etc.) involved in this application are all information and data authorized by the user or fully authorized by all parties.

[0105] The technical features of the above embodiments can be combined arbitrarily. For the sake of concise description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope recorded in this specification.

[0106] The above-described embodiments merely represent several implementation manners of the present application. The description thereof is relatively specific and detailed, but it should not be construed as a limitation to the patent scope of the present application. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present application, several modifications and improvements can still be made, and these all belong to the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the appended claims.

Claims

1. An electronic valve control device, characterized in that, The electronic valve control device includes a voltage regulation circuit, an external power supply, and a reference power supply; The first input terminal of the voltage regulation circuit is connected to the external power supply, the second input terminal of the voltage regulation circuit is connected to the reference power supply, and the output terminal of the voltage regulation circuit is connected to the electronic valve; The external power supply is used to input a supply voltage to the voltage regulation circuit; The reference power supply is used to input a reference voltage to the voltage regulation circuit; The voltage regulation circuit is used to generate a regulated voltage based on the supply voltage and the reference voltage, and output the regulated voltage to the electronic valve.

2. The electronic valve control device according to claim 1, wherein The electronic valve includes a control device, a motor, a valve core, and a valve body. The control device is used to drive the motor based on the regulated voltage so that the valve core moves within the valve body.

3. The electronic valve control device according to claim 1 or 2, characterized in that, The voltage regulation circuit includes a comparator circuit, a first power supply circuit, and a second power supply circuit; The first input terminal of the comparator circuit is connected to the external power supply, the second input terminal of the comparator circuit is connected to the reference power supply, and the third input terminal of the comparator circuit is connected to the external power supply; The input terminal of the first power supply circuit is connected to the output terminal of the comparator circuit, and the output terminal of the first power supply circuit is connected to the electronic valve; The first input terminal of the second power supply circuit is connected to the output terminal of the comparator circuit, the second input terminal of the second power supply circuit is connected to the reference power supply, and the output terminal of the second power supply circuit is connected to the electronic valve.

4. The electronic valve control device according to claim 3, wherein The comparator circuit includes a comparator; The non-inverting input terminal of the comparator circuit is connected to the external power supply, the inverting input terminal of the comparator circuit is connected to the reference power supply, the positive power supply terminal of the comparator is connected to the external power supply, the negative power supply terminal of the comparator is grounded, and the output terminal of the comparator is respectively connected to the input terminal of the first power supply circuit and the first input terminal of the second power supply circuit.

5. The electronic valve control device according to claim 3, characterized in that, The first power supply circuit includes a first resistor; One end of the first resistor is connected to the output terminal of the comparator circuit, and the other end of the first resistor is connected to the electronic valve.

6. The electronic valve control device according to claim 3, characterized in that, The second power supply circuit includes a switching tube; The gate of the switching tube is connected to the output terminal of the comparator circuit, the source of the switching tube is connected to the reference power supply, and the drain of the switching tube is connected to the electronic valve.

7. The electronic valve control device according to claim 6, characterized in that The second power supply circuit further includes a second resistor; One end of the second resistor is connected to the drain of the switching tube, and the other end of the second resistor is grounded.

8. The electronic valve control device according to claim 7, wherein The range of the reference voltage is 9V to 16V.

9. The electronic valve control device according to claim 8, characterized in that, The voltage regulation circuit is a PI control device.

10. The electronic valve control device according to claim 9, characterized in that, The reference power supply is a voltage regulator.

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