Motor control valve opening degree circuit based on Hall counting mode
By using a Hall effect counting method to control the valve opening circuit, and employing a Hall sensor and MCU combined with LIN bus control, the problems of accuracy and cost in motor-controlled valves are solved, achieving low-cost, high-precision motor control and fault diagnosis.
Patent Information
- Application Number
- CN202423146761.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-19
- Publication Date
- 2025-11-25
- Estimated Expiration
- 2034-12-19
AI Technical Summary
Existing motor-controlled valves have poor accuracy and high cost, making it difficult to achieve high-precision and low-cost control.
The motor-controlled valve opening circuit using Hall effect counting includes a power supply, a motor drive unit, a Hall sensor unit, a current fault detection unit, a voltage detection unit, a temperature detection unit, and a communication control unit. It detects the motor position through the Hall sensor and uses the MCU for precise control. Combined with LIN bus control, it achieves high-precision and low-cost motor angle control.
It achieves low-cost, high-precision motor operation control, and has real-time angle control and fault diagnosis functions, making it suitable for multi-angle control.
Smart Images
Figure CN223599753U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of motor drive and motor control, and in particular to a motor control valve opening circuit based on Hall counting. Background Technology
[0002] In the course of the times, with the development and progress of science and technology, people have an urgent need for precise control of motors, and there is an urgent need to solve the practical needs in the field of valve angle control of flow.
[0003] Looking at current applications of motor-controlled valves, one approach involves first calculating the total stroke time and then determining the valve position by the ratio of the valve motor's action time to the total stroke time. This method only provides a rough estimate of the position and has poor accuracy. Another approach requires using a PID control module for closed-loop motor position control. While this method can accurately control the position, it is more complex, costly, and space-consuming, making it unsuitable for widespread adoption.
[0004] In view of the above-mentioned shortcomings, the designer actively researched and innovated in order to create a new type of motor control valve opening circuit based on Hall counting, which would make it more valuable for industrial applications. Utility Model Content
[0005] To solve the above-mentioned technical problems, the purpose of this utility model is to provide a motor-controlled valve opening circuit based on Hall counting.
[0006] To achieve the above objectives, the present invention adopts the following technical solution:
[0007] A motor-controlled valve opening circuit based on Hall effect counting includes a power supply. The output terminal of the power supply is connected to the input terminal of a motor drive unit. The output terminal of the motor drive unit is connected to the input terminal of a motor. The output terminal of the motor is connected to the input terminal of a current fault detection unit. The output terminal of the current fault detection unit is connected to the input terminal of a processing unit. The output terminal of the motor is connected to the input terminal of a voltage detection unit. The output terminal of the voltage detection unit is connected to the input terminal of the processing unit. The input terminal of the motor is connected to the output terminal of a Hall effect sensor unit. The input terminal of the Hall effect sensor unit is connected to the output terminal of the processing unit. The input terminal of the motor drive unit is connected to the output terminal of a communication control unit.
[0008] Preferably, in the motor control valve opening circuit based on Hall effect counting, the processing unit is an MCU, specifically an STM8S003, STM32F030, or GD32E230.
[0009] Preferably, the motor control valve opening degree circuit based on the Hall counting mode, the chip adopted by the voltage detection unit is MMDT3946HE3 / NC.
[0010] Preferably, the motor control valve opening degree circuit based on the Hall counting mode, the chip adopted by the Hall sensor unit is MT8362ET.
[0011] Preferably, the motor control valve opening degree circuit based on the Hall counting mode, the chip model adopted by the communication control unit is SIT1021T.
[0012] Preferably, the motor control valve opening degree circuit based on the Hall counting mode, the output end of the motor is connected with the input end of the power-off storage unit.
[0013] Preferably, the motor control valve opening degree circuit based on the Hall counting mode, the output end of the motor is connected with the input end of the temperature detection unit.
[0014] By the above scheme, the utility model has at least the following advantages:
[0015] The utility model can realize low cost, high accuracy, high reliability control to motor operation angle, and can realize real time control motor operation, communication switching operation angle and fault diagnosis function. Reach low cost and multi-angle control.
[0016] The above description is only the outline of the technical scheme of the utility model, in order to more clearly understand the technical means of the utility model, and can be implemented according to the content of the specification, the following preferred embodiments of the utility model are described in detail with the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS
[0017] In order to more clearly illustrate the technical scheme of the embodiment of the utility model, the following will briefly introduce the drawing needed to be used in the embodiment, should understand, the following drawings only shows some embodiments of the utility model, therefore should not be regarded as the limitation to the scope, for ordinary skilled person in the art, under the premise of not paying the creative labor, can also obtain other related drawings according to these drawings.
[0018] Figure 1 It is the principle diagram in the utility model;
[0019] Figure 2 It is the circuit diagram of the motor drive unit of the utility model;
[0020] Figure 3 It is the circuit diagram of the Hall sensor unit of the utility model;
[0021] Figure 4 is a circuit diagram of the current fault detection unit of the utility model;
[0022] Figure 5 is a circuit diagram of the voltage detection unit of the utility model;
[0023] Figure 6 is a circuit diagram of the temperature detection unit of the utility model;
[0024] Figure 7 is a circuit diagram of the communication control unit of the utility model;
[0025] Figure 8 is a circuit diagram of the power-off storage unit of the utility model. DETAILED DESCRIPTION
[0026] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings can be arranged and designed in various different configurations.
[0027] Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present application.
[0028] EMBODIMENT
[0029] As Figures 1 to 8 shown, a motor control valve opening circuit based on Hall counting mode, including power supply 1, the output of power supply 1 is connected with the input of motor drive unit 2, the output of motor drive unit 2 is connected with the input of motor 3, the output of motor 3 is connected with the input of current fault detection unit 4, the output of current fault detection unit 4 is connected with the input of processing unit 7, the output of motor 3 is connected with the input of voltage detection unit 5, the output of voltage detection unit 5 is connected with the input of processing unit 7, the input of motor 3 is connected with the output of Hall sensor unit 6, the input of Hall sensor unit 6 is connected with the output of processing unit 7, the input of motor drive unit 2 is connected with the output of communication control unit 8.
[0030] The motor adopts low-cost high-speed 12000 rpm DC brushless motor, and the motor drive circuit uses 2 groups of H-bridge to control the motor speed by adjusting the duty cycle through PWM mode.
[0031] The motor is reduced to 240 revolutions per minute through the addition of a 1:50 reducer, so as to improve the output torque of the motor, and a 6-pole magnetic ring is installed on the rotor of the motor for the Hall sensor to detect the operation of the motor, so as to improve the accuracy of the detection position.
[0032] The Hall sensor unit adopts a latching high-voltage bipolar Hall sensor to improve the reliability and stability of the collected signal, and converts the rotation speed signal into a pulse signal to be fed back to the MCU for processing.
[0033] The communication control unit, i.e., the valve angle control, adopts a LIN bus control mode, supports a higher communication transmission speed and signal anti-interference property.
[0034] The processing unit 7 in the utility model is an MCU, and the model is one of STM8S003, STM32F030 or GD32E230.
[0035] The voltage detection unit 5 in the utility model adopts a chip MMDT3946HE3 / NC.
[0036] The Hall sensor unit 6 in the utility model adopts a chip MT8362ET.
[0037] The communication control unit 8 in the utility model adopts a chip model SIT1021T.
[0038] The output end of the motor 3 is connected with the input end of the temperature detection unit 10.
[0039] The output end of the motor 3 is connected with the input end of the power failure storage unit 9, wherein the power failure storage unit is an EEPROM chip used for storing the current operation position of the motor and the angle stroke amount after self-learning in the case of power failure of the equipment.
[0040] The working principle of the utility model is as follows:
[0041] In specific work, the motor is driven through the motor driving unit, the motor is controlled under the control of the communication control unit, the motor is inducted through the Hall sensor unit, information is transmitted to the processing unit (MCU) to feed back the current information, and high-precision and high-reliability control of the motor is realized.
[0042] Meanwhile, the safety of the circuit is ensured through the current fault detection unit, the voltage detection unit and the power failure storage unit.
[0043] It should be noted that like reference numerals and characters refer to like elements throughout the following figures and description, and thus, once certain terminologies are defined in one figure, they do not need to be further defined and explained in the subsequent figures.
[0044] In the description of the present application, it should be noted that the orientation or positional relationship indicated by the terms "vertical", "horizontal", "inner", "outer" and the like is based on the orientation or positional relationship shown in the drawings or the orientation or positional relationship commonly used when the product of the present application is used, and is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second" and the like are only used to distinguish the description and cannot be understood as indicating or implying relative importance.
[0045] In addition, the terms "horizontal", "vertical" and the like do not mean that the components must be absolutely horizontal or vertical, but can be slightly inclined. For example, "horizontal" only means that its direction is relatively more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.
[0046] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "arrangement", "installation", "connection", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.
[0047] The above is only the preferred embodiment of the present application, and is not used to limit the present application, and it should be noted that for those skilled in the art, without departing from the technical principles of the present application, a number of improvements and modifications can be made, and these improvements and modifications should be considered as the protection scope of the present application.
Claims
1. A valve opening degree circuit for a motor control based on a Hall counting method, characterized by: The power supply (1) is connected with the input of the motor drive unit (2), the output of the motor drive unit (2) is connected with the input of the motor (3), the output of the motor (3) is connected with the input of the current fault detection unit (4), the output of the current fault detection unit (4) is connected with the input of the processing unit (7), the output of the motor (3) is connected with the input of the voltage detection unit (5), the output of the voltage detection unit (5) is connected with the input of the processing unit (7), the input of the motor (3) is connected with the output of the Hall sensor unit (6), the output of the Hall sensor unit (6) is connected with the input of the processing unit (7), and the input of the motor drive unit (2) is connected with the output of the communication control unit (8).
2. A valve opening degree circuit for a motor control based on a Hall counting method according to claim 1, characterized in that: The processing unit (7) is an MCU, and the model number is STM8S003 or STM32F030 or GD32E230.
3. A valve opening degree circuit for a motor control based on a Hall counting method according to claim 1, characterized in that: The chip adopted by the voltage detection unit (5) is MMDT3946HE3 / NC.
4. The motor-controlled valve opening circuit based on Hall effect counting as described in claim 1, characterized in that: The chip adopted by the Hall sensor unit (6) is MT8362ET.
5. A valve opening degree circuit for a motor control based on a Hall counting method according to claim 1, characterized in that: The chip model number adopted by the communication control unit (8) is SIT1021T.
6. A valve opening degree circuit for a motor control based on a Hall counting method according to claim 1, characterized in that: The output of the motor (3) is connected with the input of the power failure storage unit (9).
7. A valve opening degree circuit for a motor control based on a Hall counting method according to claim 1, wherein: The output of the motor (3) is connected with the input of the temperature detection unit (10).