CN216929809U

CN216929809U - Stepping motor capable of being remotely controlled

Info

Publication number: CN216929809U
Application number: CN202121921345.2U
Authority: CN
Inventors: 刘卓凡; 郑伟; 范海涛; 朱文燕
Original assignee: Huizhou Gaoshengda Technology Co Ltd
Current assignee: Huizhou Gaoshengda Technology Co Ltd
Priority date: 2021-08-17
Filing date: 2021-08-17
Publication date: 2022-07-08
Anticipated expiration: 2031-08-17

Abstract

The utility model discloses a stepping motor capable of being remotely controlled, which comprises a stepping motor body and a control circuit, wherein the control circuit comprises a power supply module, a motor control module, a level conversion module, a DCDC module, a wireless module and an antenna; the power module and the motor control module are respectively electrically connected with the stepping motor body, the output end of the power module is also electrically connected with the input end of the DCDC module, the output end of the DCDC module is respectively electrically connected with the motor control module and the wireless module, the level conversion module is respectively electrically connected with the motor control module and the wireless module, and the antenna is electrically connected with the wireless module. According to the utility model, the wireless module is added, and the wireless module sends a control signal to the electric control module, so that the stepping motor can be controlled by remote equipment through the wireless module, the remote and remote control of the stepping motor can be realized, the stepping motor can be controlled in a remote timing, orientation and constant speed manner, and the flexibility and controllability of the motor are greatly improved.

Description

Stepping motor capable of being remotely controlled

Technical Field

The utility model relates to the field of stepping motors, in particular to a stepping motor capable of being remotely controlled.

Background

With the rapid development of social science and technology, the application range of the stepping motor is more and more extensive, the stepping motor can be applied to the fields of various biological instruments, medical instruments, industrial automation, multipoint control networking matrixes and the like, and the stepping motor can be matched with various electronic products and confidential equipment;

in the era of the popularization of smart homes and smart devices, the existing stepping motors are low in application and cannot be controlled remotely or remotely, so that the stepping motors are inconvenient to control.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects in the prior art, and provides a stepping motor capable of being remotely controlled.

The purpose of the utility model is realized by the following technical scheme:

a remotely operable stepper motor comprising: the control circuit comprises a power supply module, a motor control module, a level conversion module, a DCDC module, a wireless module and an antenna;

the power module, the motor control module respectively with this electricity of step motor is connected, power module's output still with the input electricity of DCDC module is connected, the output of DCDC module respectively with motor control module with the wireless module electricity is connected, level conversion module respectively with motor control module with the wireless module electricity is connected, the antenna with the wireless module electricity is connected.

Preferably, the stepping motor further comprises a USB plug terminal, and the USB plug terminal is electrically connected to the wireless module.

Preferably, the control circuit further comprises a SIM card module, and the SIM card module is electrically connected to the wireless module.

Preferably, the wireless module adopts an LTE CAT1 module.

Preferably, the DCDC module includes a first DCDC unit and a second DCDC unit, an input end of the first DCDC unit is electrically connected to the power module, an output end of the first DCDC unit is electrically connected to the motor control module and the second DCDC unit, respectively, and an output end of the second DCDC unit is connected to the power supply end of the wireless module.

Preferably, the first DCDC unit includes a buck converter Q3, a resistor R7, a resistor R10, and an output capacitor, an input end of the buck converter Q3 is used for inputting a 12V power voltage, an output end of the buck converter Q3 is filtered by the output capacitor to output a 5V voltage, a first end of the resistor R7 is electrically connected to the output end of the buck converter Q3, a second end of the resistor R7 is electrically connected to the FB pin of the buck converter Q3 and one end of the resistor R10, respectively, and another end of the resistor R10 is grounded.

Preferably, the output capacitor comprises a plurality of capacitor units connected in parallel.

Preferably, the second DCDC unit includes a voltage dropping tube Q4, a capacitor C22 and a capacitor C23, an input end of the voltage dropping tube Q4 is electrically connected to the capacitor C23, the capacitor C23 is further electrically connected to an output end of the first DCDC unit, an output end of the voltage dropping tube Q4 outputs a voltage of 3.8V, and an output end of the voltage dropping tube Q4 is electrically connected to the capacitor C22.

Preferably, the motor control module includes control chip U2 and 555 multivibrator chip U3, control chip U2's feeder ear with the DCDC module electricity is connected, control chip U2's control end and step motor body coupling, control chip U2's clock pin with 555 multivibrator chip U3 electricity is connected.

Preferably, the level shift module includes a level shift chip U1, and the level shift chip U1 is electrically connected to the motor control module and the DCDC module, respectively.

Compared with the prior art, the utility model has the following advantages and beneficial effects:

the utility model relates to a stepping motor capable of being remotely controlled, which is characterized in that a wireless module is added, and the wireless module sends a control signal to an electric control module, so that a remote device can control the stepping motor through the wireless module, the stepping motor can be remotely and remotely controlled, the stepping motor can be remotely timed, oriented and controlled at a constant speed, and the flexibility and the controllability of the motor are greatly improved.

Drawings

FIG. 1 is a functional block diagram of a remotely operable stepper motor according to an embodiment of the present invention;

fig. 2 is a circuit diagram of a USB plug terminal of the stepping motor capable of being remotely controlled shown in fig. 1;

fig. 3 is a circuit diagram of a SIM card module of the remotely controllable stepping motor shown in fig. 1;

fig. 4 is a circuit diagram of a first DCDC unit of the remotely operable stepper motor shown in fig. 1;

fig. 5 is a circuit diagram of a second DCDC unit of the remotely operable stepping motor shown in fig. 1;

FIG. 6 is a circuit diagram of a motor control module of the remotely operable stepper motor shown in FIG. 1;

FIG. 7 is a circuit diagram of a level shifting module of the remotely operable stepper motor shown in FIG. 1;

fig. 8 is a circuit diagram of a wireless module of the remotely operable stepper motor shown in fig. 1.

Detailed Description

To facilitate an understanding of the utility model, the utility model will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

In order to widen the application range of the stepping motor and enable the stepping motor to be better integrated into intelligent home and equipment, the application realizes intellectualization of the stepping motor; the product of the utility model can realize the remote and remote control of the stepping motor by the communication between the stepping motor and the CAT1-4G module, and can carry out the remote control of starting, stopping, timing, orientation and constant speed on the motor; the flexibility and the controllability of the motor are greatly increased.

Specifically, referring to fig. 1, the stepping motor capable of being remotely controlled includes a stepping motor body 100 and a control circuit 200 electrically connected to the stepping motor body 100, where the control circuit 200 includes a power module 210, a motor control module 220, a level conversion module 230, a DCDC module 240, a wireless module 250, and an antenna 260;

It should be noted that, the stepping motor in this embodiment adopts a 555 multivibrator with a working voltage of 12V and a two-phase bipolar motor, and generates a clock signal; a 555 multivibrator is adopted in the motor control module to generate a clock signal to the controller; and moreover, a controller chip special for the stepping motor is adopted, so that 4-phase control signals can be generated, and the controller chip can be used for controlling the two-phase bipolar stepping motor by a computer. In addition, in the embodiment, an LTE CAT1 module based on an ASR1601 chip, high performance, multi-system, and low power consumption is adopted to support LTE-FDD, LTE-TDD, EDGE, and GPRS network data connection. The CAT1 external pulling 4G antenna is adopted, so that better transceiving performance is achieved.

Referring to fig. 1 and 2, the stepping motor further includes a USB plug-in terminal 270, and the USB plug-in terminal is electrically connected to the wireless module. In this embodiment, a wireless module supporting USB2.0, i.e., an LTE CAT1 module, is adopted.

The USB plug terminal adopts a standard 5-pin USB interface, wherein the resistor R14 and the resistor R13 are used for facilitating debugging and reducing EVM in a line. The electrostatic tube D3 and the electrostatic tube D4 prevent the static electricity from damaging the CAT1 module, which generates dry and outside static electricity to the signal transmission communication; the capacitor C20 is a filter capacitor; the

pins

2 and 3 are D-and D + data transmission pins; pin VUSB is a 3.3V external power pin that can be used to power CAT 1.

Referring to fig. 1 and fig. 3, the control circuit further includes a SIM card module 280, and the SIM card module is electrically connected to the wireless module. In this embodiment, a USIM is adopted to design a SIM card whose line supports 1.8V/3V operating voltage. The SIM card operating voltage can be supported to 1.8V or 3V. The SIM1 is a SIM card slot, the capacitor C24 and the capacitor C25 are filter capacitors, the capacitor C19, the capacitor C21 and the capacitor C26 are parallel capacitors to prevent radio frequency signal interference, the resistor R11, the resistor R12 and the resistor R15 are test resistors to debug and use and reduce EVM in a circuit, the resistor R9 is a pull-up resistor to increase the driving capability of a DATA line, and the diode D1, the diode D2 and the diode D5 are ESD protection tubes.

Referring to fig. 1, the DCDC module includes a first DCDC unit and a second DCDC unit, an input end of the first DCDC unit is electrically connected to the power module, an output end of the first DCDC unit is electrically connected to the motor control module and the second DCDC unit, respectively, and an output end of the second DCDC unit is connected to a power supply end of the wireless module. And a DC-DC voltage reduction circuit is adopted to respectively realize the conversion from 5V voltage power supply input to 3.8V voltage power supply to a CAT1 module.

Specifically, referring to fig. 4, the first DCDC unit includes a buck converter Q3, a resistor R7, a resistor R10, and an output capacitor, an input end of the buck converter Q3 is used to input a 12V power voltage, an output end of the buck converter Q3 is filtered by the output capacitor to output a 5V voltage, a first end of the resistor R7 is electrically connected to an output end of the buck converter Q3, a second end of the resistor R7 is electrically connected to an FB pin of the buck converter Q3 and one end of the resistor R10, and another end of the resistor R10 is grounded. In this embodiment, the output capacitor includes a plurality of capacitor cells connected in parallel.

Referring to fig. 5, the second DCDC unit includes a voltage dropping tube Q4, a capacitor C22, and a capacitor C23, an input end of the voltage dropping tube Q4 is electrically connected to the capacitor C23, the capacitor C23 is further electrically connected to an output end of the first DCDC unit, an output end of the voltage dropping tube Q4 outputs a voltage of 3.8V, and an output end of the voltage dropping tube Q4 is electrically connected to the capacitor C22.

The external input power supply is 12V and 2A. The voltage-reducing converter Q3 and a corresponding matching element are adopted, the input voltage of 12V is matched through an element resistor R7 and a resistor R10, and the output voltage of 5V meeting the power supply voltage of a motor controller and a multivibrator chip is output; meanwhile, the LDO buck tube Q4 and a corresponding matching element are adopted to reduce the 5V input voltage to 3.8V voltage and supply power to the CAT1 module, the output power of the buck tube Q4 is 2A, the highest current driving capability of the CAT module is met, and 3.8V power is supplied to the VABT and VBAT _ RF power supply pins of the CAT1 module after voltage reduction conversion.

Referring to fig. 6, the motor control module includes a control chip U2 and a 555 multivibrator chip U3, a power supply terminal of the control chip U2 is electrically connected to the DCDC module, a control terminal of the control chip U2 is connected to the stepping motor body, and a clock pin of the control chip U2 is electrically connected to the 555 multivibrator chip U3.

Referring to fig. 7, the level shift module includes a level shift chip U1, and the level shift chip U1 is electrically connected to the motor control module and the DCDC module, respectively.

It should be noted that M1 is a two-phase bipolar stepping motor, and is powered by 12V, wherein the A, B, C, D four terminals are motor control terminals respectively connected to the control level output terminals of

pins

4, 6, 7, and 9 of the control chip U2. The control chip U2 is a motor controller chip, and the pin 12 supplies power for VCC; the

pins

10, 17, and 19 are communication pins for the communication between the control chip U2 and the CAT1, and since the communication levels of the control chip U2 and the CAT1 module are not consistent, the communication between the motor control chip U2 and the CAT1 module L1 needs to be performed through the level conversion chip U1;

pins

15 and 16 of the control chip U2 respectively refer to the voltage pin and the chip selection pin, and are subjected to pull-up processing through a resistor R3 and a resistor R4; and pin 18 is a clock signal input pin, and a desired clock level signal generated by the 555 multivibrator chip U3 is input to the chip via pin 18. The terminal a of the level shift module U1 is the signal terminal L1 of CAT1, the terminal B is the signal terminal U2 of the control chip, and the voltage corresponding to the level signal is input to the VCCA and VCCB. In the 555 multivibrator circuit, the resistor R5, the resistor R6, the capacitor NC5 and the capacitor NC4 are respectively used for adjusting clock signal parameters, and the diode Q2 and the diode Q1 play a role of protecting circuits.

Referring to fig. 8, fig. 8 is a circuit diagram of a wireless module, i.e., a CAT1 module circuit diagram, where

pins

11, 30, 31, 41, 44, 53, 67, 70, 71, 73, 74, and 81 are GND and all need to be grounded; pins 28, 29, 68, and 69 are VCC, and an external 3.8V voltage supplies power to CAT1, where capacitor C7, capacitor C8, capacitor C1, and capacitor C2 are filter capacitors; the pin 45 is VUSB, which is a CAT1 module supplied by USB external 3.3V, wherein the capacitor C5 is a filter capacitor; the

pins

42 and 43 are USB communication serial ports, and communicate with the outside through USB interfaces.

The

pins

12, 13, 14, 15 and 16 are SIM communication ports for communicating with a SIM card; the pin 72 is an external antenna pin, wherein R2 and two NC capacitor reserved bits are used for adjusting antenna impedance matching, and ANT1 is an external antenna interface; pin 25 is a 1.8V output pin of CAT1, and is used for connecting with a pin 77 reset pin when CAT1 is upgraded, so as to play a reset role;

pins

48, 49, 50 are pins for sending control signals to the motor controller for controlling the motor, respectively.

The above embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent should be subject to the appended claims.

Claims

1. A remotely operable stepper motor, comprising: the control circuit comprises a power supply module, a motor control module, a level conversion module, a DCDC module, a wireless module and an antenna;

2. The remotely controllable stepping motor according to claim 1, further comprising a USB connector, wherein said USB connector is electrically connected to said wireless module.

3. The remotely controllable stepper motor as recited in claim 1 or 2, wherein the control circuit further comprises a SIM card module, the SIM card module being electrically connected to the wireless module.

4. The remotely steerable stepper motor of claim 1, wherein the wireless module employs an LTE CAT1 module.

5. The remotely controllable stepping motor according to claim 1 or 4, wherein said DCDC module comprises a first DCDC unit and a second DCDC unit, an input terminal of said first DCDC unit is electrically connected to said power supply module, an output terminal of said first DCDC unit is electrically connected to said motor control module and said second DCDC unit, respectively, and an output terminal of said second DCDC unit is connected to a power supply terminal of said wireless module.

6. The remotely controllable stepping motor according to claim 5, wherein said first DCDC unit comprises a step-down converter Q3, a resistor R7, a resistor R10 and an output capacitor, an input terminal of said step-down converter Q3 is used for inputting 12V power voltage, an output terminal of said step-down converter Q3 outputs 5V voltage after being filtered by said output capacitor, a first terminal of said resistor R7 is electrically connected to an output terminal of said step-down converter Q3, a second terminal of said resistor R7 is electrically connected to an FB pin of said step-down converter Q3 and one terminal of said resistor R10, respectively, and another terminal of said resistor R10 is grounded.

7. The remotely controllable stepper motor as recited in claim 6, wherein the output capacitor comprises a plurality of capacitor cells connected in parallel.

8. The remotely controllable stepping motor according to claim 5, wherein said second DCDC unit comprises a voltage dropping tube Q4, a capacitor C22 and a capacitor C23, an input end of said voltage dropping tube Q4 is electrically connected to said capacitor C23, said capacitor C23 is further electrically connected to an output end of said first DCDC unit, an output end of said voltage dropping tube Q4 outputs a voltage of 3.8V, and an output end of said voltage dropping tube Q4 is electrically connected to said capacitor C22.

9. The remotely controllable stepper motor as claimed in claim 1, wherein the motor control module comprises a control chip U2 and a 555 multivibrator chip U3, the power supply terminal of the control chip U2 is electrically connected to the DCDC module, the control terminal of the control chip U2 is connected to the stepper motor body, and the clock pin of the control chip U2 is electrically connected to the 555 multivibrator chip U3.

10. The remotely controllable stepper motor of claim 1, wherein the level shift module comprises a level shift chip U1, the level shift chip U1 being electrically connected to the motor control module and the DCDC module, respectively.