A variable frequency speed control device

Abstract

This utility model discloses a variable frequency speed control device, including a main control unit, a variable frequency drive unit, a detection feedback unit, a power supply module, a display unit, and an operation unit. The main control unit is electrically connected to the variable frequency drive unit, the detection feedback unit, the power supply module, the display unit, and the operation unit. The main control unit generates control signals, the variable frequency drive unit receives control signals and outputs variable frequency speed control signals, the detection feedback unit collects real-time parameters and feeds them back to the main control unit, the power supply module supplies power to each unit, the display unit displays status parameters, and the operation unit receives user operation commands. This utility model uses the main control unit to generate control signals, the variable frequency drive unit to receive control signals and output variable frequency speed control signals, and the detection feedback unit to collect real-time parameters and feed them back to the main control unit. The main control unit adjusts the control signals based on program parameters and feedback parameters to achieve precise speed control of motors and other equipment.

Description

Technical Field

[0001] This utility model relates to the field of motor speed regulation technology, specifically to a variable frequency speed control device. Background Technology

[0002] In industrial production and automation control, motors, as core power equipment, play a decisive role in system performance through the accuracy and stability of their speed control. Traditional motor speed control methods, such as series resistance speed control and voltage regulation speed control, generally suffer from narrow speed range, high energy consumption, and low accuracy, making it difficult to meet the requirements of modern industry for high efficiency, energy saving, and precise control. Existing variable frequency speed control devices struggle to dynamically adjust according to load changes and actual needs, resulting in poor speed control accuracy. Furthermore, most devices lack user-friendly human-machine interfaces and data communication functions, hindering real-time monitoring and remote control by operators and preventing effective integration with other automation systems, thus limiting their application in complex industrial scenarios.

[0003] Based on the above, this utility model proposes a variable frequency speed control device, which can effectively solve the above problems. Utility Model Content

[0004] This utility model addresses the shortcomings of the existing technology by providing a variable frequency speed control device.

[0005] This utility model is achieved through the following technical solution:

[0006] A variable frequency speed control device includes a main control unit, a variable frequency drive unit, a detection feedback unit, a power supply module, a display unit, and an operation unit. The main control unit is electrically connected to the variable frequency drive unit, the detection feedback unit, the power supply module, the display unit, and the operation unit. The main control unit generates control signals, the variable frequency drive unit receives control signals and outputs variable frequency speed control signals, the detection feedback unit collects real-time parameters and feeds them back to the main control unit, the power supply module supplies power to each unit, the display unit displays status parameters, and the operation unit receives user operation commands.

[0007] According to the above technical solution, as a further preferred technical solution, the main control unit includes a microprocessor, a storage module, and a communication module; the microprocessor is electrically connected to the storage module, the communication module, the frequency converter drive unit, the detection feedback unit, the display unit, and the operation unit, respectively; the storage module is used to store program parameters and historical data, the microprocessor generates control signals based on the program parameters and the feedback parameters of the detection feedback unit, and the communication module is used to realize data interaction between the device and external devices.

[0008] According to the above technical solution, as a further preferred technical solution, the power module includes a transformer, a filter, and a voltage regulator connected in sequence; the transformer is used to step down the external AC power to a predetermined voltage range, the filter is used to convert the stepped-down AC power into smooth DC power, and the voltage regulator is used to output multiple stable DC voltages to power each unit.

[0009] According to the above technical solution, as a further preferred technical solution, the device further includes a housing, wherein the main control unit, the frequency conversion drive unit, the detection feedback unit and the power module are all integrated on the circuit board and installed inside the housing; the display unit and the operation unit are disposed on the surface of the housing.

[0010] Compared with the prior art, this utility model has the following advantages and beneficial effects:

[0011] This utility model provides a variable frequency speed control device, in which a main control unit generates a control signal, a variable frequency drive unit receives the control signal and outputs a variable frequency speed control signal, a detection feedback unit collects real-time parameters and feeds them back to the main control unit, the main control unit adjusts the control signal based on the program parameters and feedback parameters, a power supply module supplies power to each unit, a display unit displays status parameters, and an operation unit receives user operation commands. Through this closed-loop control, precise speed control of motors and other equipment is achieved. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the connection relationship of this utility model. Detailed Implementation

[0013] To enable those skilled in the art to better understand the technical solution of this utility model, the preferred embodiments of this utility model are described below in conjunction with specific examples. However, it should be understood that the accompanying drawings are for illustrative purposes only and should not be construed as limiting this patent. For better illustration of this embodiment, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual product dimensions. It is understandable that some well-known structures and their descriptions may be omitted in the drawings for those skilled in the art. The positional relationships described in the drawings are for illustrative purposes only and should not be construed as limiting this patent.

[0014] A variable frequency speed control device includes a main control unit 1, a variable frequency drive unit 2, a detection feedback unit 3, a power supply module 4, a display unit 5, and an operation unit 6. The main control unit 1 is electrically connected to the variable frequency drive unit 2, the detection feedback unit 3, the power supply module 4, the display unit 5, and the operation unit 6. The main control unit 1 is used to generate control signals, the variable frequency drive unit 2 is used to receive control signals and output variable frequency speed control signals, the detection feedback unit 3 is used to collect real-time parameters and feed them back to the main control unit 1, the power supply module 4 is used to supply power to each unit, the display unit 5 is used to display status parameters, and the operation unit 6 is used to receive user operation commands.

[0015] This invention generates control signals through a main control unit 1, receives control signals and outputs variable frequency speed control signals through a variable frequency drive unit 2, collects real-time parameters and feeds them back to the main control unit 3, adjusts the control signals based on program parameters and feedback parameters, supplies power to each unit through a power supply module 4, displays status parameters through a display unit 5, and receives user operation commands through an operation unit 6. Through this closed-loop control, precise speed control of motors and other equipment is achieved.

[0016] Furthermore, in another embodiment, the main control unit 1 includes a microprocessor 11, a storage module 12, and a communication module 13; the microprocessor 11 is electrically connected to the storage module 12, the communication module 13, the frequency converter drive unit 2, the detection feedback unit 3, the display unit 5, and the operation unit 6, respectively; the storage module 12 is used to store program parameters and historical data, the microprocessor 11 generates control signals based on the program parameters and the feedback parameters of the detection feedback unit 3, and the communication module 13 is used to realize data interaction between the device and external devices.

[0017] Furthermore, in another embodiment, the power module 4 includes a transformer 41, a filter 42, and a voltage regulator 43 connected in sequence; the transformer 41 is used to step down the external AC power to a predetermined voltage range, the filter 42 is used to convert the stepped-down AC power into smooth DC power, and the voltage regulator 43 is used to output multiple stable DC voltages to power each unit.

[0018] Furthermore, in another embodiment, the device further includes a housing 7, wherein the main control unit 1, the frequency conversion drive unit 2, the detection feedback unit 3 and the power module 4 are all integrated on a circuit board and installed inside the housing 7; the display unit 5 and the operation unit 6 are disposed on the surface of the housing 7.

[0019] The working principle of one embodiment of this utility model is as follows:

[0020] After the user inputs the target speed through the operation unit 6, the microprocessor 11 of the main control unit 1 analyzes the program parameters of the storage module 12 and the real-time data of the detection feedback unit 3, and generates a dynamic control signal to drive the frequency converter 2 to adjust the motor speed. The detection feedback unit 3 continuously collects the motor operating parameters to form a closed-loop control. The power supply module 4 provides stable power through three-stage processing of transformation, filtering and voltage stabilization. The display unit 5 and the operation unit 6 realize human-machine interaction. The communication module 13 supports data synchronization with external devices. The whole system realizes intelligent closed-loop regulation of motor speed.

[0021] Based on the description and drawings of this utility model, those skilled in the art can easily manufacture or use the variable frequency speed control device of this utility model, and can produce the positive effects described in this utility model.

[0022] Unless otherwise specified, in this utility model, terms such as "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe orientation or positional relationships in this utility model are for illustrative purposes only and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood in conjunction with the accompanying drawings and according to the specific circumstances.

[0023] Unless otherwise expressly specified and limited, the terms "set up," "connected," and "linked" in this utility model should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0024] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Any simple modifications or equivalent changes made to the above embodiments based on the technical essence of the present utility model shall fall within the protection scope of the present utility model.

Claims

1. A variable frequency speed control device, characterized in that: It includes a main control unit (1), a variable frequency drive unit (2), a detection feedback unit (3), a power supply module (4), a display unit (5), and an operation unit (6); the main control unit (1) is electrically connected to the variable frequency drive unit (2), the detection feedback unit (3), the power supply module (4), the display unit (5), and the operation unit (6), respectively; the main control unit (1) is used to generate control signals, the variable frequency drive unit (2) is used to receive control signals and output variable frequency speed control signals, the detection feedback unit (3) is used to collect real-time parameters and feed them back to the main control unit (1), the power supply module (4) is used to supply power to each unit, the display unit (5) is used to display status parameters, and the operation unit (6) is used to receive user operation commands.

2. The variable frequency speed control device according to claim 1, characterized in that: The main control unit (1) includes a microprocessor (11), a storage module (12), and a communication module (13); the microprocessor (11) is electrically connected to the storage module (12), the communication module (13), the frequency converter drive unit (2), the detection feedback unit (3), the display unit (5), and the operation unit (6), respectively; the storage module (12) is used to store program parameters and historical data, the microprocessor (11) generates control signals based on the program parameters and the feedback parameters of the detection feedback unit (3), and the communication module (13) is used to realize data interaction between the device and external devices.

3. The variable frequency speed control device according to claim 1, characterized in that: The power module (4) includes a transformer (41), a filter (42) and a voltage regulator (43) connected in sequence; the transformer (41) is used to step down the external AC power to a predetermined voltage range, the filter (42) is used to convert the stepped-down AC power into smooth DC power, and the voltage regulator (43) is used to output multiple stable DC voltages to power each unit.

4. The variable frequency speed control device according to claim 1, characterized in that: The device also includes a housing (7), the main control unit (1), the frequency conversion drive unit (2), the detection feedback unit (3) and the power module (4) are all integrated on the circuit board and installed inside the housing (7); the display unit (5) and the operation unit (6) are disposed on the surface of the housing (7).

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