Intelligent closestool electronic water pump brushless motor control system

Abstract

The utility model provides an intelligent closestool electronic water pump brushless motor control system, which comprises a wireless module, a control module, a driving module and a power supply module, and is characterized in that the wireless module is used for being wirelessly connected with burning equipment or debugging equipment so as to receive wireless data signals transmitted by the burning equipment or the debugging equipment; the wireless module is connected with the control module, the wireless module transmits a wireless data signal to the control module, and the control module is used for automatically updating after receiving the wireless data signal; the driving module is connected with the control module, and the control module controls the driving module to drive the brushless motor to work; the input end of the power supply module is connected with an external power supply, and the output end of the power supply module is connected with and supplies power to the wireless module, the control module and the driving module. Software burning is carried out on the motor control panel through the wireless technology, and even after glue pouring, software burning can be carried out on the motor control panel through the wireless technology.

Description

Technical Field

[0001] The utility model relates to a motor control technology, in particular to a brushless motor control system for an intelligent toilet electronic water pump. Background Art

[0002] The existing smart toilet electronic water pump generally adopts the glue filling process to seal the brushless motor and motor control board with epoxy glue to ensure that the water pump can work submersible. The motor control system needs to rely on software to drive the motor to work. Before filling the glue, the software will be burned to the control board, and then the glue will be filled and sealed. However, the existing smart toilet electronic water pump production process has certain defects, that is, when burning the software, the burner and the motor control board need to be connected with a flat cable for burning. If the software is burned incorrectly or there is a bug in the software, then after filling the glue, it will lead to mass customer returns and mass scrapping, which is a very large property loss for the company. Utility Model Content

[0003] In order to solve the above problems, the purpose of the utility model is to provide a smart toilet electronic water pump brushless motor control system, which uses wireless technology to burn the software of the motor control board. Even after glue is filled, the wireless technology can be used to burn the software of the motor control board.

[0004] The utility model is realized by the following technical solutions:

[0005] A control system for a brushless motor of an electronic water pump for an intelligent toilet comprises: a wireless module, wherein the wireless module is used to wirelessly connect to a recording device or a debugging device to receive a wireless data signal transmitted by the recording device or the debugging device; a control module, wherein the wireless module is connected to the control module, wherein the wireless module transmits the wireless data signal to the control module, and wherein the control module is used to automatically update after receiving the wireless data signal; a driving module, wherein the driving module is connected to the control module, wherein the control module controls the driving module to drive the brushless motor to work; and a power supply module, wherein the input end of the power supply module is connected to an external power supply, and the output end of the power supply module is respectively connected to the wireless module, the control module and the driving module to supply power thereto.

[0006] Furthermore, the burning device includes a burner and a wireless component matched with the wireless module, the burner is connected to a PC, and the wireless component is connected to the burner.

[0007] Furthermore, the debugging device includes a serial port debugging tool connected to a PC and a wireless component, and the wireless component is a wireless component that matches the wireless module.

[0008] Furthermore, the wireless module includes at least one of a 2.4G wireless module, a Bluetooth module or a WIFI module.

[0009] Furthermore, the power supply module includes a protection component and a voltage regulating component connected to the protection component; the protection component is connected to an external power supply to filter and protect the external power supply against reverse connection before supplying power to the control module and the drive module; the voltage regulating component is used to adjust the output voltage of the protection component to supply power to the wireless module.

[0010] Furthermore, the control module includes a control chip and a voltage detection circuit and a current detection circuit connected to the control chip; the voltage detection circuit is connected to the output end of the power module and is used to detect the output voltage value of the power module, and the current detection circuit is used to detect the working current of the motor; the control chip includes a serial port, a burning port and an IO port connected to the wireless module.

[0011] Furthermore, the 2.4G wireless module includes a 2.4G chip, a crystal oscillator circuit connected to the 2.4G chip, and an ANT onboard antenna connected to the 2.4G chip; the ANT onboard antenna is used to receive the wireless data signal, and the crystal oscillator circuit is used to provide a clock signal for the 2.4G chip.

[0012] Furthermore, the driving module includes three groups of driving circuits, each of the driving circuits includes a PMOS tube and an NMOS tube connected in series, the gate of the PMOS tube and the gate of the NMOS are both connected to the control module, the source of the PMOS tube is connected to the power module, the drain of the PMOS tube is connected to the drain of the NMOS, the source of the NMOS is grounded, and the common ends of the three groups of PMOS tubes and the NMOS are connected to the three-phase terminals of the motor one by one.

[0013] Furthermore, the source of the NMOS is grounded through a sampling resistor, and the source of the NMOS is connected to the control module.

[0014] Compared with the prior art, the technical solution of the utility model and its beneficial effects are as follows:

[0015] The utility model provides a smart toilet electronic water pump brushless motor control system, which adds a wireless module to the electronic water pump end and transmits wireless data signals to the wireless components of the burning end or the serial port debugging end, so as to update, debug, and modify the software burning program. The control module is automatically updated by the wireless data signal, and the drive module is controlled by the new program, thereby making the control of the toilet electronic water pump brushless motor more convenient and flexible. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a principle block diagram of a brushless motor control system for an electronic water pump for an intelligent toilet provided by an embodiment of the utility model;

[0017] Figure 2 This is a principle block diagram of another smart toilet electronic water pump brushless motor control system provided by the embodiment of the utility model;

[0018] Figure 3 It is a circuit schematic diagram of a power module provided by an embodiment of the utility model;

[0019] Figure 4 It is a circuit schematic diagram of a control module provided by an embodiment of the utility model;

[0020] Figure 5 It is a circuit schematic diagram of a 2.4G wireless module provided by an embodiment of the utility model;

[0021] Figure 6 It is a circuit schematic diagram of a driving module provided in an embodiment of the utility model. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical scheme and advantages of the embodiment of the utility model clearer, the technical scheme in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0023] See also Figure 1 A control system for a brushless motor of an electronic water pump for an intelligent toilet includes a wireless module, a control module, a drive module and a power module. The wireless module is wirelessly connected to a burning device, and the burning device includes a burner and a wireless component matching the wireless module. The burner is connected to a PC, and the wireless component is connected to the burner. The wireless module is connected to the control module, and the wireless module transmits a wireless data signal to the control module. The control module automatically updates after receiving the wireless data signal. The drive module is connected to the control module, and the control module controls the drive module to drive the brushless motor to work. The input end of the power module is connected to an external power supply, and the output end of the power module is respectively connected to the wireless module, the control module and the drive module to supply power to them.

[0024] The wireless module includes at least one of a 2.4G wireless module, a Bluetooth module or a WIFI module. This embodiment is explained by taking the wireless module being a 2.4G wireless module as an example.

[0025] After the electronic water pump is powered on, the 2.4G wireless module will give priority to adapting the wireless components of the burning device. After the adaptation connection is successful, the 2.4G wireless module sends a signal (high or low level or PWM) to the control module. After the control module receives the signal that the 2.4G wireless module is successfully adapted and connected, it will automatically enter the burning mode, thereby controlling the drive module to stop working. At this time, the PC-side burner will show that the connection with the water pump device is successful, and the program file is sent to the burner through the PC. The burner then sends the program file in the form of a wireless data signal through the wireless component. After the wireless module on the water pump receives the program file, it transmits the program code to the control module. The control module updates the program code, and the electronic water pump is powered on again, completing the upgrade and update of the MCU running program.

[0026] After the electronic water pump is powered on, the wireless component is powered off, the 2.4G wireless module is not adapted to the wireless component on the burning device end, and a signal (high or low level or PWM) is sent to the control module. After the control module receives the signal that the 2.4G wireless module adaptation connection is unsuccessful, it will enter the working mode and control the drive module to drive the motor to work. It is worth noting that the priority adaptation of the 2.4G wireless module and the wireless component is a commonly used technology in the communication field. At the same time, the automatic update of the control module according to the received wireless data signal is also a prior art. The timing control of the control module on the burning and driving of the drive module is also a commonly used method in this field. Therefore, the software technology involved in this embodiment is conventional technology and will not be repeated here.

[0027] In one embodiment, the wireless module is wirelessly connected to the debugging device, and the debugging device includes a serial port debugging tool connected to the PC and a wireless component, and the wireless component matches the wireless module. When the electronic water pump is in working state, the wireless component connected by the serial port debugging tool is adapted to the 2.4G wireless module. After the connection is successful, the 2.4G wireless module communicates with the control module. At this time, the serial port debugging tool reads the real-time changing parameters such as the motor speed, bus current, and back electromotive force through wireless data transmission; some parameters that need to be adjusted can also be sent to the control module through the wireless module through the serial port debugging tool. After the control module receives the data, it will overwrite the old parameters with the new parameters after the next power-on, which is convenient for debugging the motor.

[0028] See also Figure 3 The power module includes a protection component and a voltage regulating component connected to the protection component; the protection component is connected to an external power supply and is used to filter and protect the external power supply against reverse connection before supplying power to the control module and the drive module; the voltage regulating component is used to adjust the output voltage of the protection component to supply power to the wireless module.

[0029] The protection component includes a diode D1 whose anode is connected to the positive electrode of the external power supply, a TVS tube D3 connected in parallel between the cathode of the diode D1 and the negative electrode of the external power supply, a capacitor C2 and an electrolytic capacitor EC1. The positive electrode of the electrolytic capacitor EC1 is the output end of the protection component, outputting a 12V power supply, and the negative electrode of the electrolytic capacitor EC1 is grounded. The voltage regulating component includes an LDO chip U3. The output end of the protection component is connected to the input end of the LDO chip U3. The output end of the LDO chip U3 outputs a power supply suitable for the 2.4G wireless module.

[0030] See also Figure 4 The control module includes a control chip U1 and a voltage detection circuit and a current detection circuit connected to the control chip; the voltage detection circuit is connected to the output end of the power module and is used to detect the output voltage value of the power module, and the current detection circuit is used to detect the working current of the motor; the control chip includes a serial port (RXD, TXD) connected to the wireless module, a burning port (FICEK) and an IO port (IO2).

[0031] The voltage detection circuit includes a resistor R11 and a resistor R13 connected in series, a resistor R12 connected to the common end of the resistor R11 and the resistor R13, and a capacitor C6 connected to the other end of the resistor R12. The other end of the capacitor C6 is grounded, the other end of the resistor R11 is connected to the output end of the protection component, the other end of the resistor R13 is grounded, and the common end of the resistor R12 and the capacitor C6 is connected to the control chip U1. The control chip U1 realizes the corresponding overvoltage / undervoltage protection function through this circuit.

[0032] Combined with reference Figure 6 The current detection circuit includes a comparator, a sampling resistor RS1 connected to a driving module, a series resistor R22, a resistor R23, a resistor R24, and a capacitor C25. The sampling resistor RS1 is connected to the in-phase input terminal of the comparator through the resistor R24. The common terminal of the resistor R22 and the resistor R23 is connected to the reverse input terminal of the comparator. The capacitor C25 is connected in parallel to the resistor R22 and the end of the resistor R24 ​​far from the comparator. The output terminal of the comparator is connected to the other end of the resistor R23 and also connected to the control chip U1. The other end of the resistor R22 is grounded. The control chip U1 detects the current of the motor through this circuit.

[0033] See also Figure 5 The 2.4G wireless module includes a 2.4G chip, a crystal oscillator circuit connected to the 2.4G chip, and an ANT onboard antenna connected to the 2.4G chip. The ANT onboard antenna is used to receive wireless data signals transmitted by the wireless component, and the crystal oscillator circuit is used to provide a clock signal for the 2.4G chip. In this embodiment, the 2.4G chip adopts the VG2410 model.

[0034] See also Figure 6The driving module includes three groups of driving circuits, each of which includes a PMOS tube and an NMOS tube connected in series. The gate of the PMOS tube and the gate of the NMOS tube are both connected to the control chip U1. The control chip U1 outputs high and low levels to control the opening and closing of the PMOS tube and the NMOS tube, thereby controlling the operation of the motor. The source of the PMOS tube is connected to the output terminal 12V of the protection component, the drain of the PMOS tube is connected to the drain of the NMOS, the source of the NMOS is grounded, and the common terminals of the three groups of PMOS tubes and NMOS are connected to the three-phase terminals of the motor one by one. The source of the NMOS is grounded through the sampling resistor RS1, and the source of the NMOS is connected to the current detection circuit.

[0035] The above description shows and describes the preferred embodiments of the utility model. It should be understood that the utility model is not limited to the form disclosed herein, and should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified within the scope of the utility model concept of this article through the above teachings or the technology or knowledge of the relevant field. The changes and modifications made by those skilled in the art do not deviate from the spirit and scope of the utility model, and should be within the scope of protection of the claims attached to the utility model.

Claims

1. A brushless motor control system for an intelligent toilet electronic water pump, characterized in that: include: A wireless module, which is used to wirelessly connect to a recording device or a debugging device to receive a wireless data signal transmitted by the recording device or the debugging device; A control module, the wireless module is connected to the control module, the wireless module transmits the wireless data signal to the control module, and the control module is used to automatically update after receiving the wireless data signal; A driving module, wherein the driving module is connected to the control module, and the control module controls the driving module to drive the brushless motor to work; A power module, wherein the input end of the power module is connected to an external power source, and the output end of the power module is respectively connected to the wireless module, the control module and the drive module to supply power to them.

2. According to claim 1, a brushless motor control system for an intelligent toilet electronic water pump is characterized in that: The burning device comprises a burner and a wireless component matched with the wireless module, the burner is connected to a PC end, and the wireless component is connected to the burner.

3. According to claim 1, a brushless motor control system for an intelligent toilet electronic water pump is characterized in that: The debugging device includes a serial port debugging tool connected to a PC and a wireless component, wherein the wireless component is a wireless component matching the wireless module.

4. According to claim 1, a brushless motor control system for an intelligent toilet electronic water pump is characterized in that: The wireless module includes at least one of a 2.4G wireless module, a Bluetooth module or a WIFI module.

5. The intelligent toilet electronic water pump brushless motor control system according to claim 1 is characterized in that: The power supply module includes a protection component and a voltage regulating component connected to the protection component; the protection component is connected to an external power supply and is used to filter and protect the external power supply against reverse connection before supplying power to the control module and the drive module; the voltage regulating component is used to adjust the output voltage of the protection component to supply power to the wireless module.

6. The intelligent toilet electronic water pump brushless motor control system according to claim 1, characterized in that: The control module includes a control chip and a voltage detection circuit and a current detection circuit connected to the control chip; the voltage detection circuit is connected to the output end of the power module and is used to detect the output voltage value of the power module, and the current detection circuit is used to detect the working current of the motor; the control chip includes a serial port, a burning port and an IO port connected to the wireless module.

7. The brushless motor control system for an intelligent toilet electronic water pump according to claim 4, characterized in that: The 2.4G wireless module includes a 2.4G chip, a crystal oscillator circuit connected to the 2.4G chip, and an ANT onboard antenna connected to the 2.4G chip; the ANT onboard antenna is used to receive the wireless data signal, and the crystal oscillator circuit is used to provide a clock signal for the 2.4G chip.

8. The brushless motor control system for an intelligent toilet electronic water pump according to claim 1, characterized in that: The driving module includes three groups of driving circuits, each of which includes a PMOS tube and an NMOS tube connected in series, the gate of the PMOS tube and the gate of the NMOS are both connected to the control module, the source of the PMOS tube is connected to the power module, the drain of the PMOS tube is connected to the drain of the NMOS, the source of the NMOS is grounded, and the common ends of the three groups of PMOS tubes and the NMOS are connected to the three-phase wiring terminals of the motor in a one-to-one correspondence.

9. The intelligent toilet electronic water pump brushless motor control system according to claim 8, characterized in that: The source of the NMOS is grounded through a sampling resistor, and the source of the NMOS is connected to the control module.

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