A combined electrostatic eliminator
By combining passive and active static eliminators and using signal conversion and PID circuits to adjust the elimination intensity, the problem of unstable static elimination effect in lithium battery production has been solved, achieving more stable and safer static elimination.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SUZHOU TA&A ULTRA CLEAN TECH CO LTD
- Filing Date
- 2025-07-17
- Publication Date
- 2026-07-17
AI Technical Summary
Existing static elimination devices are not effective in lithium battery production and are unable to cope with complex and ever-changing static environments.
Combining passive and active static eliminators, a signal conversion circuit senses the static signal after passive elimination and controls the elimination intensity of the active eliminator. A PID circuit is set to monitor and adjust the elimination intensity in real time.
It achieves a more stable static electricity elimination effect, avoids metal foreign object contamination, and improves the product quality and safety of lithium battery production.
Smart Images
Figure CN224521236U_ABST
Abstract
Claims
1. A combined static electricity elimination device, characterized in that, include: A passive static eliminator includes a discharge needle and a signal conversion circuit; the discharge needle is grounded through a resistor and is used to passively eliminate static electricity from the target body. The signal conversion circuit is connected to the discharge needle and ground, and is used to sense the electrostatic signal of the target body after passive elimination and convert it into a circuit signal output. An active static eliminator, connected to the signal conversion circuit, is used to generate an ion flow of corresponding intensity according to the circuit signal output by the signal conversion circuit, so as to actively eliminate static electricity from the target body.
2. The combination electrostatic eliminator of claim 1, wherein The number of discharge needles is one; Alternatively, there may be multiple discharge needles, which form a multi-segment structure and are connected to adjacent discharge needles by insulating connectors.
3. The combination electrostatic eliminator of claim 1 wherein, The discharge needle is made of monocrystalline silicon, tungsten alloy, or titanium alloy.
4. The combination electrostatic eliminator of claim 1 wherein, The discharge needle has a coverage length of 50cm to 200cm and a coverage width of 2cm to 5cm.
5. The combination electrostatic elimination device of claim 1, wherein, The distance between the discharge needle and the target body is 1cm to 50cm, and the discharge needle is parallel to the area where the target body is located.
6. The combination electrostatic elimination device of claim 1, wherein, The signal conversion circuit includes: An amplifier, connected to the discharge needle and ground, is used to amplify the intensity of the electrostatic charge on the target. A comparator, connected to the discharge needle and ground, is used to determine the polarity of the static electricity of the target body; The signal conditioning unit is connected to the output of the amplifier and the output of the comparator. It is used to filter and standardize the electrostatic intensity output by the amplifier and the electrostatic polarity output by the comparator before outputting them.
7. The combination electrostatic elimination device of claim 1, wherein, The resistor is an adjustable resistor, with a resistance value adjustable within the range of 0.5MΩ to 20MΩ; And / or, the resistor is connected in parallel with a high-voltage capacitor with a capacitance of 0.01μF to 0.1μF.
8. The combination electrostatic elimination device of claim 1, wherein, The active static eliminator includes a controller, a high-voltage power supply, and an ion generator, with the high-voltage power supply connected to both the controller and the ion generator. The controller is used to control the output voltage of the high-voltage power supply according to the circuit signal output by the signal conversion circuit, so as to control the ion generator to generate an ion flow of corresponding intensity.
9. The combination electrostatic elimination device of claim 8, wherein, The active static eliminator also includes: A PID circuit, connected to the high-voltage power supply, is used to monitor the electrostatic signal of the target body during the active elimination of electrostatics in the target body, and to control the output voltage of the high-voltage power supply according to the electrostatic signal.
10. The combination electrostatic elimination device of claim 8, wherein, The ion generator includes multiple independently controlled discharge units, which are arranged in an array.