Static eliminator self-regulating system

Abstract

The application discloses a static electricity elimination self-adjusting system, which comprises a sensor, a voltage adjusting module and an ion generator, wherein the sensor obtains static electricity information of a workpiece to be processed and transmits the static electricity information to the voltage adjusting module; the voltage adjusting module comprises a positive high-voltage adjusting module and a negative high-voltage adjusting module to adjust working voltage according to the detected static electricity information and output the adjusted working voltage to the ion generator to generate charged ions. Thus, the application can adjust the positive and negative voltage in real time according to the detected static electricity of the surface of the object, effectively ensure that the static electricity value of the surface of the object is 0 and play a better role in static electricity elimination adjustment.

Description

Technical Field

[0001] This invention relates to the field of static electricity elimination technology, and in particular to a static electricity elimination self-regulating system. Background Technology

[0002] Static eliminators, also known as static electricity removal devices, work on the following principle: They consist of a high-voltage power generator and a discharge electrode (usually made into an ion needle). The high-voltage corona discharge at the tip ionizes the air into a large number of positive and negative ions. Then, the wind blows the large number of positive and negative ions onto the surface of the object to neutralize the static electricity, or the static eliminator is placed directly close to the surface of the object to neutralize the static electricity.

[0003] However, most static eliminators cannot provide real-time feedback adjustments based on actual conditions, resulting in poor static elimination effects. Summary of the Invention

[0004] The purpose of this invention is to provide a self-regulating electrostatic elimination system that can adjust in real time according to the detected external electrostatic conditions, thereby improving the electrostatic elimination effect.

[0005] To solve the above-mentioned technical problems, the present invention provides a self-regulating electrostatic elimination system, including a sensor, a voltage regulation module, and an ion generator. The sensor obtains electrostatic information of the workpiece to be processed and transmits it to the voltage regulation module. The voltage regulation module includes a positive high voltage regulation module and a negative high voltage regulation module to regulate the working voltage according to the detected electrostatic information, and outputs the regulated working voltage to the ion generator to generate charged ions.

[0006] Furthermore, the positive high voltage regulation module includes a digital-to-analog converter, which receives electrostatic information obtained by the sensor and performs voltage regulation calculation, outputs the calculated voltage regulation amount to the switching power supply module, and the switching power supply module adjusts the initial voltage according to the voltage regulation amount and outputs the adjusted positive voltage VCCP.

[0007] Furthermore, the Vout terminal of the digital-to-analog converter is connected to the FB terminal of the switching power supply module, the Vss terminal is grounded, the Vdd terminal is connected to the power supply voltage VCC, and the AO terminal is connected to the power supply voltage VCC through resistor R12.

[0008] Furthermore, the positive high voltage regulation module also includes a manual adjustment module connected to the switching power supply module for controlling the regulated positive voltage. Preferably, the manual adjustment module includes a capacitor C1, a resistor R4, and a potentiometer RT1. One end of the capacitor C1 and one end of the resistor R4 are connected to the FB terminal of the switching power supply module, and the other end is connected to the sliding terminal of the potentiometer RT1. The other end of the resistor R4 is connected to the first fixed terminal of the potentiometer RT1, and the sliding terminal and the second fixed terminal of the potentiometer RT1 are connected to the output terminal of the positive high voltage regulation module.

[0009] Furthermore, the VIN terminal of the switching power supply module is connected to the detection voltage VD, the EN terminal is connected to the VIN terminal, the RT / SYNC terminal is grounded through resistor R8, a capacitor C65 is connected between the BOOT terminal and the SW terminal, an energy storage inductor L3 is provided between the SW terminal and the output terminal of the positive high voltage regulation module, the SS terminal is grounded through capacitor C68, and a Zener diode D4 is provided between the SW terminal and ground.

[0010] Furthermore, the negative high voltage regulation module includes a digital-to-analog converter, which receives electrostatic information obtained by the sensor and performs voltage regulation calculation, outputs the calculated voltage regulation amount to the switching power supply module, and the switching power supply module adjusts the initial voltage according to the voltage regulation amount and outputs the adjusted negative voltage VCCN.

[0011] Furthermore, the Vout terminal of the digital-to-analog converter is connected to the FB terminal of the switching power supply module, the Vss terminal is grounded, the Vdd terminal is connected to the power supply voltage VCC, and the AO terminal is grounded.

[0012] Furthermore, the negative high voltage regulation module also includes a manual adjustment module connected to the switching power supply module for controlling the regulated negative voltage. Preferably, the manual adjustment module includes a capacitor C2, a resistor R5, and a potentiometer RT2. One end of the capacitor C2 and one end of the resistor R5 are connected to the FB terminal of the switching power supply module, and the other end is connected to the sliding end of the potentiometer RT2. The other end of the resistor R5 is connected to the first fixed end of the potentiometer RT2, and the sliding end and the second fixed end of the potentiometer RT2 are connected to the output terminal of the positive high voltage regulation module.

[0013] Furthermore, the VIN terminal of the switching power supply module is connected to the detection voltage VD, the EN terminal is connected to the VIN terminal, the RT / SYNC terminal is grounded through resistor R9, a capacitor C66 is connected between the BOOT terminal and the SW terminal, an energy storage inductor L2 is provided between the SW terminal and the output terminal of the negative high voltage regulation module, the SS terminal is grounded through capacitor C69, and a Zener diode D5 is provided between the SW terminal and ground.

[0014] Furthermore, the voltage regulation module is also equipped with a CAN signal generation module, which is used to output CAN control signals to the positive high voltage regulation module and the negative high voltage regulation module.

[0015] Compared to existing technologies, this invention provides a self-regulating electrostatic elimination system, comprising a sensor, a voltage regulation module, and an ion generator. The sensor acquires electrostatic information of the workpiece to be processed and transmits it to the voltage regulation module. The voltage regulation module includes a positive high-voltage regulation module and a negative high-voltage regulation module to adjust the operating voltage according to the detected electrostatic information, and outputs the adjusted operating voltage to the ion generator to produce charged ions. Therefore, this invention can perform real-time positive and negative adjustments based on the detected electrostatic charge on the object surface, effectively ensuring that the electrostatic charge value on the object surface is 0, thus achieving a better electrostatic elimination regulation effect. Attached Figure Description

[0016] Figure 1 This is a structural block diagram of a self-regulating electrostatic elimination system according to one embodiment of the present invention;

[0017] Figure 2 This is a circuit diagram of a positive high voltage regulation module in one embodiment of the present invention;

[0018] Figure 3 This is a circuit diagram of a negative high-voltage regulation module in one embodiment of the present invention;

[0019] Figure 4 This is a circuit diagram of a CAN signal generation module in one embodiment of the present invention. Detailed Implementation

[0020] The electrostatic elimination self-regulating system of the present invention will now be described in more detail with reference to the schematic diagrams, which illustrate preferred embodiments of the invention. It should be understood that those skilled in the art can modify the invention described herein while still achieving its advantageous effects. Therefore, the following description should be understood as being of general knowledge to those skilled in the art and is not intended to limit the invention.

[0021] The invention is described more specifically by way of example in the following paragraphs with reference to the accompanying drawings. The advantages and features of the invention will become clearer from the following description and claims. It should be noted that the drawings are in a very simplified form and use non-precise proportions, and are only used to facilitate and clarify the illustration of the embodiments of the invention.

[0022] This invention provides a self-regulating electrostatic elimination system, referenced Figure 1As shown, the electrostatic elimination self-regulating system includes: a sensor, a voltage regulation module, and an ion generator. The sensor obtains electrostatic information of the workpiece to be processed and transmits it to the voltage regulation module. The voltage regulation module includes a positive high voltage regulation module and a negative high voltage regulation module to regulate the working voltage according to the detected electrostatic information, and outputs the regulated working voltage to the ion generator to generate charged ions.

[0023] Therefore, this invention can make real-time positive and negative adjustments based on the detected static electricity on the object surface, effectively ensuring that the static electricity value on the object surface is 0, and playing a good role in static electricity elimination and adjustment.

[0024] In one embodiment, please refer to Figure 2 As shown, the positive high voltage regulation module includes a digital-to-analog converter U2, which receives electrostatic information obtained by the sensor and performs voltage regulation calculation. The calculated voltage regulation amount is output to the switching power supply module U4. The switching power supply module U4 adjusts the initial voltage according to the voltage regulation amount and outputs the regulated positive voltage VCCP.

[0025] For example, the digital-to-analog converter U2 can be selected from the MCP 4725 chip.

[0026] The digital-to-analog converter U2 has its Vout terminal (pin 1) connected to the FB terminal of the switching power supply module U4, its Vss terminal (pin 2) grounded, its Vdd terminal (pin 3) connected to the power supply voltage VCC, its AO terminal (pin 6) connected to the power supply voltage VCC through resistor R12, its SDA port (pin 4) and its SCL port (pin 5) connected to the CAN signal generation module, which receives the SDA and SCL signals respectively.

[0027] The CAN signal generation module provides different I signals based on the electrostatic information detected by the sensor. 2 The C command is invoked, and U2 transmits the control signal to U4 according to the command to regulate the positive voltage of the output.

[0028] As an example, the supply voltage VCC can be 3.3V.

[0029] To improve signal accuracy, pull-up resistors R13 and R14 can be set for SDA and SCL.

[0030] The VIN terminal (pin 2) of the switching power supply module U4 is connected to the input detection voltage VD. The VIN terminal is also grounded through a bypass capacitor C10. The EN terminal (pin 3) is connected to the VIN terminal. The RT / SYNC terminal (pin 4) is grounded through a resistor R8. A capacitor C65 is connected between the BOOT terminal (pin 1) and the SW terminal (pin 8). An energy storage inductor L3 is provided between the SW terminal and the output terminal of the positive high voltage regulation module. The SS terminal (pin 6) is grounded through a capacitor C68. A Zener diode D4 is provided between the SW terminal and ground. The GND terminal (pin 7) is grounded. The FB terminal (pin 5) is connected to the output terminal of diode D1.

[0031] According to the control signal of U2, U4 will cause the energy storage inductor L3 to store different amounts of energy, thereby affecting the final positive voltage VCCP.

[0032] Furthermore, filter capacitors, such as C15, C16, and C17, can be placed after the energy storage inductor L3.

[0033] For example, the detection voltage VD can be 24V, and its output voltage changes to the required value after passing through U4.

[0034] For example, U4 can be selected as a DC-DC switching power supply chip with model number LMR14050SDDAR.

[0035] In addition, in this embodiment of the invention, a manual adjustment module may be provided, which is connected to the switching power supply module U4, for controlling the adjusted positive voltage VCCP.

[0036] Preferably, the manual adjustment module includes a capacitor C1, a resistor R4, and a potentiometer RT1. One end of the capacitor C1 and one end of the resistor R4 are connected to the FB terminal of the switching power supply module, and the other end is connected to the sliding end of the potentiometer RT1. The other end of the resistor R4 is connected to the first fixed end of the potentiometer RT1. The sliding end and the second fixed end of the potentiometer RT1 are connected to the output terminal of the positive high voltage adjustment module.

[0037] Based on the design of the manual adjustment module, this invention realizes two adjustment methods for positive ion output: automatic adjustment by detection and controlled manual adjustment. This allows for the selection of the appropriate adjustment method according to actual needs and different application scenarios.

[0038] Please refer to Figure 3 As shown, the negative high voltage regulation module includes a digital-to-analog converter U1, which receives electrostatic information obtained by the sensor and performs voltage regulation calculation. The calculated voltage regulation amount is output to the switching power supply module U5. The switching power supply module U5 adjusts the initial voltage according to the voltage regulation amount and outputs the regulated negative voltage VCCN.

[0039] For example, the digital-to-analog converter U1 can be selected from the MCP 4725 chip.

[0040] The Vout terminal (pin 1) of the digital-to-analog converter U1 is connected to the FB terminal of the switching power supply module U5, the Vss terminal (pin 2) is grounded, the Vdd terminal (pin 3) is connected to the power supply voltage VCC, the AO terminal (pin 6) is grounded through resistor R11, pin 4 is the SDA port, and pin 5 is the SCL port, which are connected to the CAN signal generation module and respectively connected to the SDA and SCL signals.

[0041] The CAN signal generation module provides different I signals based on the electrostatic information detected by the sensor. 2 The C instruction is used so that U1 transmits a control signal to U5 according to the instruction, thereby regulating the negative voltage of the output.

[0042] As an example, the supply voltage VCC can be 3.3V.

[0043] To improve signal accuracy, pull-up resistors R13 and R14 can be set for SDA and SCL.

[0044] The VIN terminal (pin 2) of the switching power supply module U5 is connected to the input detection voltage VD. The VIN terminal is also grounded through the bypass capacitor C10. The EN terminal (pin 3) is connected to the VIN terminal. The RT / SYNC terminal (pin 4) is grounded through the resistor R9. A capacitor C66 is connected between the BOOT terminal (pin 1) and the SW terminal (pin 8). An energy storage inductor L2 is provided between the SW terminal and the output terminal of the positive high voltage regulation module. The SS terminal (pin 6) is grounded through the capacitor C69. A Zener diode D5 is provided between the SW terminal and ground. The GND terminal (pin 7) is grounded. The FB terminal (pin 5) is connected to the output terminal of the diode D1.

[0045] According to the control signal of U2, U4 will cause the energy storage inductor L2 to store different amounts of energy, thereby affecting the final negative voltage VCCN.

[0046] Furthermore, filter capacitors, such as C15, C16, and C17, can be placed after the energy storage inductor L2.

[0047] For example, the detection voltage VD can be 24V, and its output voltage is changed to the required value after passing through U5.

[0048] For example, U5 can select a DC-DC switching power supply chip with model number LMR14050SDDAR.

[0049] In addition, in this embodiment of the invention, a manual adjustment module may be provided, which is connected to the switching power supply module U5, for controlling the adjusted negative voltage VCCN.

[0050] Preferably, the manual adjustment module includes a capacitor C2, a resistor R5, and a potentiometer RT2. One end of the capacitor C2 and one end of the resistor R5 are connected to the FB terminal of the switching power supply module, and the other end is connected to the sliding end of the potentiometer RT2. The other end of the resistor R5 is connected to the first fixed end of the potentiometer RT2. The sliding end and the second fixed end of the potentiometer RT2 are connected to the output terminal of the negative high voltage adjustment module.

[0051] Based on the design of the manual adjustment module, this invention realizes two adjustment methods for negative ion output: automatic adjustment by detection and controlled manual adjustment. This allows for the selection of the appropriate adjustment method according to actual needs and different application scenarios.

[0052] Please refer to Figure 4 The voltage regulation module is also equipped with a CAN signal generation module, which is used to output CAN control signals to the positive high voltage regulation module and the negative high voltage regulation module.

[0053] The CAN signal generation module mainly includes a CAN chip U14. The TXD terminal is the input from the CAN controller, and the RXD terminal is the output. The transmitter converts the single-ended input (CAN_TX) of the CAN controller into a differential output of the bus. The receiver reads the differential input (CANH, CANL) from the bus and transmits this data as a single-ended output (CAN_RX) to the CAN controller.

[0054] As an example, U14 could be a CAN communication chip with the model number MAX3051.

[0055] In summary, the static eliminator of this invention acquires the static electricity value of a surface object measured by the static electricity sensor in real time through the CAN communication function of the sensor. The voltage adjustment module then determines the value. If the static electricity value is positive (+), the voltage adjustment module increases the voltage of the negative high-voltage adjustment module, increasing the negative high voltage and causing more negative ions to ionize, thus shifting the static electricity value of the object's surface towards the negative. Similarly, if the static electricity value is negative (-), the voltage adjustment module increases the voltage of the positive high-voltage adjustment module, increasing the positive high voltage and causing more positive ions to ionize, thus shifting the static electricity value of the object's surface towards the positive. Therefore, through real-time positive and negative adjustment, the static electricity value of the object's surface is kept at 0, achieving the function of static electricity elimination and adjustment.

[0056] Obviously, those skilled in the art can make various modifications and variations to this invention without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this invention and their equivalents, this invention also intends to include these modifications and variations.

Claims

1. A self-regulating electrostatic elimination system, characterized in that, The system includes a sensor, a voltage regulation module, and an ion generator. The sensor acquires electrostatic information about the workpiece to be processed and transmits it to the voltage regulation module. The voltage regulation module includes a positive high-voltage regulation module and a negative high-voltage regulation module to adjust the operating voltage according to the detected electrostatic information, and outputs the adjusted operating voltage to the ion generator to produce charged ions. The positive high voltage regulation module includes a digital-to-analog converter, which receives electrostatic information obtained by the sensor and performs voltage regulation calculation. The calculated voltage regulation amount is output to the switching power supply module. The switching power supply module adjusts the initial voltage according to the voltage regulation amount and outputs the regulated positive voltage VCCP. The Vout terminal of the digital-to-analog converter is connected to the FB terminal of the switching power supply module, the Vss terminal is grounded, the Vdd terminal is connected to the supply voltage VCC, and the AO terminal is connected to the supply voltage VCC through resistor R12. The negative high voltage regulation module includes a digital-to-analog converter, which receives electrostatic information obtained by the sensor and performs voltage regulation calculation. The calculated voltage regulation amount is output to the switching power supply module. The switching power supply module adjusts the initial voltage according to the voltage regulation amount and outputs the regulated negative voltage VCCN. The Vout terminal of the digital-to-analog converter is connected to the FB terminal of the switching power supply module, the Vss terminal is grounded, the Vdd terminal is connected to the supply voltage VCC, and the AO terminal is grounded.

2. The electrostatic elimination self-regulating system as described in claim 1, characterized in that, The positive high voltage regulation module also includes a manual regulation module connected to the switching power supply module for controlling the regulated positive voltage. The manual regulation module includes a capacitor C1, a resistor R4, and a potentiometer RT1. One end of the capacitor C1 and one end of the resistor R4 are connected to the FB terminal of the switching power supply module, and the other end is connected to the sliding terminal of the potentiometer RT1. The other end of the resistor R4 is connected to the first fixed terminal of the potentiometer RT1. The sliding terminal and the second fixed terminal of the potentiometer RT1 are connected to the output terminal of the positive high voltage regulation module.

3. The electrostatic elimination self-regulating system as described in claim 2, characterized in that, The switching power supply module has a detection voltage VD input at the VIN terminal, an EN terminal connected to the VIN terminal, an RT / SYNC terminal grounded through a resistor R8, a capacitor C65 connected between the BOOT terminal and the SW terminal, an energy storage inductor L3 between the SW terminal and the output terminal of the positive high voltage regulation module, an SS terminal grounded through a capacitor C68, and a Zener diode D4 between the SW terminal and ground.

4. The electrostatic elimination self-regulating system as described in claim 1, characterized in that, The negative high voltage regulation module also includes a manual adjustment module connected to the switching power supply module for controlling the regulated negative voltage. The manual adjustment module includes a capacitor C2, a resistor R5, and a potentiometer RT2. One end of the capacitor C2 and one end of the resistor R5 are connected to the FB terminal of the switching power supply module, and the other end is connected to the sliding end of the potentiometer RT2. The other end of the resistor R5 is connected to the first fixed end of the potentiometer RT2. The sliding end and the second fixed end of the potentiometer RT2 are connected to the output terminal of the positive high voltage regulation module.

5. The electrostatic elimination self-regulating system as described in claim 4, characterized in that, The switching power supply module has a detection voltage VD input at the VIN terminal, an EN terminal connected to the VIN terminal, an RT / SYNC terminal grounded through a resistor R9, a capacitor C66 connected between the BOOT terminal and the SW terminal, an energy storage inductor L2 between the SW terminal and the output terminal of the negative high voltage regulation module, an SS terminal grounded through a capacitor C69, and a Zener diode D5 between the SW terminal and ground.

6. The electrostatic elimination self-regulating system as described in claim 1, characterized in that, The voltage regulation module is also equipped with a CAN signal generation module, which is used to output CAN control signals to the positive high voltage regulation module and the negative high voltage regulation module.

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