WO2020019692A1

WO2020019692A1 - Electrostatic elimination device, and cleaner for cleaning electrostatic needle

Info

Publication number: WO2020019692A1
Application number: PCT/CN2019/072805
Authority: WO
Inventors: 李小龙; 王平
Original assignee: 武汉华星光电技术有限公司
Priority date: 2018-07-27
Filing date: 2019-01-23
Publication date: 2020-01-30
Also published as: CN108834293A; CN108834293B

Abstract

Disclosed is an electrostatic elimination device (10). The electrostatic elimination device (10) comprises: a base plate (100), sensors (103, 104) and a cleaner (20), wherein the base plate (100) is provided with an electrostatic needle (102), the electrostatic needle (102) generating a positive ion or a negative ion, the sensors (103, 104) are used for generating a sensing signal when sensing that there is foreign matter on the electrostatic needle (102); and the cleaner (20) is slidably arranged on the base plate (100), and the cleaner (20) slides towards the electrostatic needle (102) to remove the foreign matter on the electrostatic needle.

Description

Static elimination device and cleaner for cleaning electrostatic needle

Technical field

The invention relates to a static elimination device, in particular to a static elimination device having a cleaner.

Background technique

In the production process of thin film transistor liquid crystal display panels and organic light emitting diode display panels, electrostatic discharge has always been the biggest factor in product yield. The damage caused by static electricity and the adsorption of particles directly lead to poor product quality, which severely affects product quality and company benefits. Therefore, static electricity eliminators (also known as static electricity elimination devices) will be added to the equipment from the top to the bottom of the panel production line to eliminate static electricity, minimize the generation of static discharge, and improve product yield and product quality.

The thin-film transistor liquid crystal display panel and the organic light-emitting diode display panel have a conservative estimate of about 15,000 to 20,000 static elimination devices. The two important indicators of the static elimination device are the static elimination speed and the maintenance of ion balance. However, the static elimination device still has the following problems in practical use. For example, with the use of the static elimination device, its needle head will generate foreign matter at the static needle of the static elimination device due to physical and chemical factors, which directly affects Ion balance and static decay rate. Therefore, the static elimination device needs to invest a lot of manpower to clean the static elimination device and measure and monitor the equilibrium voltage and static decay rate. Due to the limitation of personnel monitoring and the stability of the measurement, As a result, many static elimination devices cannot be cleaned and measured in a timely and effective manner, resulting in frequent occurrence of electrostatic discharge and instability of the static elimination ability.

Therefore, it is necessary to provide a static elimination device to solve the problems existing in the prior art.

technical problem

In view of this, the present invention provides a static elimination device to solve the problems that the accumulation of foreign matter on the electrostatic needle in the prior art directly affects the release balance of positive and negative ions, resulting in an increase in the equilibrium voltage and a decrease in the static decay rate.

Technical solutions

In order to achieve the foregoing object of the present invention, an embodiment of the present invention provides a static elimination device. The static elimination device includes:

The bottom plate is provided with an electrostatic needle which generates positive or negative ions;

A sensor, configured to sense a foreign object in a needle of the electrostatic needle to generate a sensing signal;

The monitor includes a measurement terminal and a controller, the measurement terminal is used to measure the static electricity removing ability of the electrostatic needle, and the controller is used to determine whether to generate a driving signal according to the sensing signal or the signal of the measurement terminal ;

A cleaner slidably disposed on the base plate for sliding the cleaner toward the electrostatic needle to remove a foreign object on the electrostatic needle when receiving the driving signal; and

A data collector that collects information received from the sensor and the monitor.

In an embodiment of the present invention, the cleaner includes:

A fitting groove which slidably fixes the cleaner to the bottom plate;

An electrostatic needle channel, the opening of the electrostatic needle channel engaging the electrostatic needle;

A cleaning member located in the electrostatic needle channel to remove foreign matters on the electrostatic needle; and

A protruding portion abutting a portion of the cleaning member with respect to the storage box of the housing, the protruding portion being configured to collect and limit the foreign matter to the storage of the housing Inside the box.

In an embodiment of the present invention, the static elimination device further includes a driver located at the first end of the bottom plate. The driver includes a power generator and an electromagnet, and the driver receives the power from the monitor. The driving signal causes the electric power generator to generate a current and transmits the electric current to the electromagnet to form a magnetic field.

In an embodiment of the present invention, the electromagnet receives the current and generates a magnetic force, and drives the cleaner to slide toward the second end of the bottom plate. When the cleaner passes the sensor, such that When the cleaner is detected by the second segment of the sensor wave, the driver reduces the speed of the cleaner.

In an embodiment of the present invention, the sensor emits a first segment of the sensing wave and a second segment of the sensing wave, and the first segment of the sensing wave is emitted to the first side of the electrostatic needle.

In an embodiment of the present invention, the sensor further includes a third sensing wave, the third sensing wave senses a second side of the electrostatic needle, and the first sensing wave and the A third sensing wave measures the size of the foreign matter on the electrostatic needle.

In an embodiment of the present invention, the static elimination ability is evaluated by analyzing an equilibrium voltage of the electrostatic needle and an electrostatic decay time, and when the equilibrium voltage or the electrostatic decay time exceeds a preset range, The controller sends an alarm signal.

An embodiment of the present invention provides a cleaner for cleaning an electrostatic needle. The cleaner includes:

The housing includes a fitting groove and an electrostatic needle channel, the fitting groove and the electrostatic needle channel pass through the housing, and the fitting groove slidably fixes the cleaner at the electrostatic needle, The opening of the electrostatic needle channel engages the electrostatic needle;

A cleaning member located on both sides of the electrostatic needle channel in the housing to remove foreign matter on the electrostatic needle; and

In an embodiment of the present invention, the cleaner includes a metal piece, and the metal piece is disposed corresponding to an electromagnet. When the electromagnet is energized, the metal piece is attracted by the magnetic force to cause the cleaner to face the cleaner. The electrostatic needle slides to remove and collect foreign objects on the electrostatic needle.

Another embodiment of the present invention provides a static elimination device. The static elimination device includes:

The monitor includes a measurement terminal and a controller, the measurement terminal is used to measure the static electricity removing ability of the electrostatic needle, and the controller is used to determine whether to generate a driving signal according to the sensing signal or the signal of the measurement terminal ;as well as

A cleaner is slidably disposed on the base plate, and is configured to slide the cleaner toward the electrostatic needle to remove a foreign object on the electrostatic needle when receiving the driving signal.

In an embodiment of the present invention, the cleaner includes:

A fitting groove which slidably fixes the cleaner to the bottom plate;

Beneficial effect

Compared with the prior art, the static elimination device of the present invention, the static elimination device of the present invention not only monitors and analyzes the condition of the static needle, the balance voltage of the bottom plate, and the static decay time, etc., but also provides timely information to the bottom plate. Cleaning, so that the equilibrium voltage and static decay time are maintained within a predetermined range, and at the same time prevent foreign matter of the electrostatic needle from falling into the production line during cleaning, improving product quality also greatly reduces labor investment costs, and at the same time through large The establishment and analysis of data can realize the management and improvement of core equipment and important processes, and simultaneously manage multiple static elimination devices to achieve fully automated production, saving a lot of manpower and costs, and improving product yield and stability.

In order to make the above content of the present invention more comprehensible, the following describes in detail the preferred embodiments and the accompanying drawings, as follows:

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a schematic diagram of a static elimination device according to an embodiment of the present invention.

FIG. 2 is a schematic diagram of a cleaner according to an embodiment of the present invention.

FIG. 3 is a top view of the cleaner of FIG. 2.

Fig. 4 is a cross-sectional view of the cleaner of Fig. 3 taken along a line A-A '.

FIG. 5 is a schematic diagram of a sensor in a static elimination device according to an embodiment of the present invention.

Embodiments of the invention

The following descriptions of the embodiments are with reference to the attached drawings to illustrate specific embodiments in which the present invention can be implemented. Furthermore, the directional terms mentioned in the present invention include, for example, top, bottom, top, bottom, front, back, left, right, inside, outside, side, periphery, center, horizontal, horizontal, vertical, vertical, axial, The radial direction, the uppermost layer, or the lowermost layer, etc., are only directions referring to the attached drawings. Therefore, the directional terms used are for explaining and understanding the present invention, but not for limiting the present invention.

Please refer to FIG. 1, which is a schematic diagram of a static elimination device according to an embodiment of the present invention. The static elimination device 10 according to an embodiment of the present invention includes a bottom plate 100, sensors 103 and 104, a monitor 112, and a cleaner 20. The base plate 100 is provided with an electrostatic needle 102. A side of the base plate 100 is provided with a track 101. The electrostatic needle 102 is used to release ions with a positive charge 107 and a negative charge 108. The positively and negatively charged ions 107 and 108 are used to neutralize the charges generated on the surface or inside of the electronic component or product conveyed by the conveyor belt 111 of the production line to prevent electrostatic pollution and damage. The static eliminator shown in FIG. 1 uses a rod-type static eliminator as an example. The static eliminator may also have other forms of structure, such as a ring-type static eliminator, and the structure of the bottom plate of the present invention is not limited thereto.

The sensors 103 and 104 are respectively disposed on the first end 119 and the second end 120 of the bottom plate 100. In an embodiment of the present invention, the sensors 104 are disposed on the first end 119 of the bottom plate 100. The sensors 103 and 104 are aligned with the electrostatic needle 102, and the sensor 103 may be disposed between the electrostatic needle 102 and the cleaner 20 in the first parking position or the second parking position. The sensors 103 and 104 are used to detect whether there is a foreign object in the needle of the electrostatic needle 102.

A monitor 112 is provided in the area below the bottom plate 100 to monitor the working status of the static eliminator 10. The monitor 112 includes measurement terminals 109 and 110 for measuring the static elimination capability of the electrostatic needle 102. In an embodiment of the present invention, the measurement terminals 109 and 110 are disposed on both sides of the conveyor belt 111 of the electronic production line and are disposed facing the electrostatic needle 102. The measurement terminals 109 and 110 receive the positive ions 107 and the negative ions 108 released by the electrostatic needle 102 to measure the equilibrium voltage and electrostatic decay time of the electrostatic needle 102. The measurement terminals 109 and 110 are electric quantity sensors, and are used to evaluate the static elimination capability of the electrostatic needle 102 by measuring the equilibrium voltage of the electrostatic needle 102 and measuring the electrostatic decay time of the electrostatic needle 102.

The balance voltage can be directly measured by the positive and negative ions released by the electrostatic needle 102 by using the measuring terminals 109 and 110. The measuring terminals 109 and 110 can also include a charged plate that can carry a positive voltage to neutralize the electrostatic needle 102. The generated positive ions 107 or negative ions 108, and at the same time, the terminals 109 and 110 measure the time required for the voltage value on the charged plate to fall to a preset voltage value to obtain the static decay time. The monitor 112 reflects the static eliminator 10 Are there any abnormalities and provide timely solutions.

The monitor 112 may be connected to a data collector 114. The monitor 112 receives information on the sizes of foreign objects on the first and second sides of the electrostatic needle 102 from the sensors 103, 104, and receives static electricity elimination from the measurement terminals 109, 110. Information of the static elimination capability of the collector 10 and collects the information in the data collector 114.

The monitor 112 may be provided with a controller 115. The controller 115 analyzes according to the information in the data collector 114 to determine whether the static eliminator 10 is abnormal, and sends a driving signal to clean the electrostatic needle 102. The static elimination capability of the static eliminator 10 is determined based on whether the balance voltage of the electrostatic needle 102 and the static decay time are within a predetermined range. The predetermined range of the balance voltage and the static decay time depends on each process. Developed standards. The preset range of the balance voltage may be within ± 0.1 volts to ± 50 volts. In one embodiment of the present invention, the preset range of the balance voltage is within ± 30 volts. The preset range of the static decay time is within 0.1 second to 5 seconds. In one embodiment of the present invention, the preset range of the static decay time is within 3 seconds. If the static eliminator 10 is determined to be abnormal, the monitor 112 may send a driving signal to instruct the cleaner 20 to clean the electrostatic needle 102.

The monitor 112 may be configured to send an alarm signal to the output device 113, such as a display panel or a computer integrated manufacturing system, so that a person can determine and confirm in time to send a drive signal to instruct the cleaner 20 to clean the electrostatic needle 102. The computer integrated manufacturing system summarizes the information received by the data collector 114 to establish big data for the management and improvement of core equipment and important processes, and to improve the high-discharge area of electrostatic discharge. Therefore, the static elimination capability of the static eliminator 10 is controlled within a preset range, which effectively prevents electrostatic contamination and destruction of electronic components or products in the production line.

The static elimination device 10 according to an embodiment of the present invention shown in FIG. 1 monitors the static needle 102 on the static eliminator 10, the balance voltage of the static needle 102, and the static decay time, and sends a driving signal when the static eliminator 10 is abnormal. In addition, the cleaner 102 is instructed to clean the static eliminator 10 in time, which effectively and effectively controls the balance voltage within a preset range, reduces the risk of electrostatic discharge, effectively improves the stability of the static eliminator 10, and prevents particulate adsorption damage. Electronic components and products, thereby improving the quality and yield of electronic components and products. At the same time, the collection and analysis of big data can realize the management and improvement of core equipment and important processes, and realize automated production, which solves the existing technology needs a lot of manpower The technical problem of regularly cleaning a large number of electrostatic needles in a production line, and solving the problems that the existing electrostatic needles are difficult to clean due to the accumulation of foreign matter for too long, the calibration is time-consuming, and the electrostatic needles are easy to wear.

Please refer to FIGS. 2 to 4 together. FIG. 2 is a schematic diagram of a cleaning assembly according to an embodiment of the present invention. FIG. 3 is a top view of the cleaning assembly of FIG. 2. Fig. 4 is a cross-sectional view of the cleaning assembly of Fig. 3 taken along a line A-A '. The cleaner 20 includes a housing 201, a cleaning member 205, and protrusions 206 and 207. The cleaning assembly 20 is provided with a fitting groove 200 and an electrostatic needle channel 203, and the fitting groove 200 and the electrostatic needle channel 203 pass through the housing 201. The electrostatic needle channel 203 may be a U-shaped slot, and the fitting groove 200 is fitted into the bottom plate 100. The rail 101 allows the cleaner 20 to slide along the rail 101 and is fixed to the bottom plate 100 in a slidable manner. The opening 202 of the electrostatic needle channel 203 engages the electrostatic needle 102 so that the size of the electrostatic needle channel 203 is suitable for the electrostatic needle 102 to pass through.

The cleaning member 205 is located in the housing 201 and is located on both sides of the electrostatic needle channel 203 and defines the width of the electrostatic needle channel 203. Therefore, when the cleaner 20 slides along the rail 101, the cleaning member 205 and the electrostatic needle 102 abut against each other and remove the foreign matter on the electrostatic needle 102. The cleaning member 205 is one or a combination selected from the group consisting of cloth, brush, sponge, plastic, and metal. The cleaning member 205 can effectively remove foreign objects on the electrostatic needle 102.

The cleaner may include a metal piece 209 (see FIG. 5) on a side of the cleaner 205 facing the drives 105, 106 (see FIG. 5). The metal parts 209 and the electromagnets 117 and 118 (see FIG. 5) are arranged correspondingly to each other. When the electromagnets 117 and 118 are energized, the metal parts 209 are attracted by the magnetic force to cause the cleaner 20 to slide toward the electrostatic needle 102 to the foreign matter on the electrostatic needle 102 Clean and collect.

The protrusions 206 and 207 abut against portions of the cleaning member 20 that are opposite to the storage box 208 of the housing 201, and the protrusions 206 and 207 are configured to collect and limit foreign matter to the storage box 208 of the housing 201. The protruding portions 206 and 207 may be protruding structures facing each other so as to form a narrow passage in the casing 201 so that foreign objects fall into the storage box 208 of the casing 201 and cannot escape from the casing 201.

The housing may be provided with a triggering device 204, such as a button 204. The trigger device 204 is disposed on the storage box 208. When the triggering device 204 receives pressure from an external force, the storage box 208 is separated from the housing 201, which makes it easy for a person to clean up the foreign matter collected in the storage box 208.

According to another embodiment of the present invention, when the triggering device 204 is pressed by an external force, the fitting groove 200 of the housing is separated from the track 101 (see FIG. 1) of the bottom plate 100 (see FIG. 1), so that the personnel can easily replace the cleaning parts. 203 and clean up the foreign matter collected in the storage box 208 of the case 201. The cleaner 20 according to an embodiment of the present invention shown in FIGS. 2 to 3 can directly remove the foreign matter on the electrostatic needle 102 by directly engaging the electrostatic needle 102. The cleaner 20 also prevents foreign objects from being scattered or dropped, and effectively maintains the static elimination ability and stability of the electrostatic needle 102, prevents electrostatic discharge and particulate adsorption from damaging electronic components and products, thereby improving the quality and yield of electronic components and products .

FIG. 5 is a schematic diagram of the sensor 103 in the static elimination device according to an embodiment of the present invention. The sensors 103 and 104 are aligned with the electrostatic needle 102. The sensors 103, 104 may be optical sensors, such as infrared sensors. The sensors 103 and 104 are used to send the first segment of the sensing wave 301 and the third segment of the sensing wave 303 toward the needle of the electrostatic needle 102, and the first segment of the sensing wave 301 and the third segment of the sensing wave 303 are respectively transmitted to On the first side and the second side of the needle of the electrostatic needle 102, the sensors 103 and 104 send a second segment of the sensing wave 302 downward to sense whether the cleaner 20 has reached below the sensors 103 and 104.

The static elimination device may be provided with a driver 105, 106, which is located at the first end 119 of the bottom plate. The driver 105, 106 includes a power generator 116 and an electromagnet 117, 118. The driver 105, 106 receives a driving signal from the monitor, so The power generator 116 generates a current and transmits it to the electromagnets 117 and 118 to form a magnetic field. The electromagnets 117 and 118 are disposed toward the cleaner 20.

The invention provides a cleaner 20 that can be snapped onto the rail 101 and can slide on the bottom plate 100. The cleaner 20 removes and collects foreign objects on the electrostatic needle 102. The first parking position of the cleaner 20 is located on the bottom plate 100. The second end 120 and the second parking position of the cleaner 20 are located on the first end 119 of the bottom plate 100. In an embodiment of the present invention, the first end 119 and the second end 120 of the bottom plate 100 are respectively about 60 mm from the electrostatic needle 102. The sensors 103, 104 are approximately 10 mm in length. The length of the cleaner 20 is about 50 mm, and the width of the cleaner 20 is substantially the same as that of the bottom plate, and the height is about 60 mm. The cleaner 20 removes the foreign matters on the electrostatic needle 102, and avoids the problem that the foreign matters on the electrostatic needle 102 accumulate for a long time, clump, or even crystallize, which is difficult to remove.

Please refer to FIG. 1 to FIG. 5 together. In one embodiment of the present invention, when the sensors 103 and 104 sense a foreign object on the electrostatic needle 102, the sensors 103 and 104 generate a first sensing signal or when When the balance voltage or static decay time of the electrostatic needle 102 measured by the measuring terminals 109 and 110 of the monitor 112 exceeds a preset range, the controller 115 of the monitor 112 is based on the first sensing signal or the The signal decides to send a first driving signal to clean the electrostatic needle 102. The drivers 105 and 106 receive the first driving signal from the monitor 112, so that the power generator 116 generates a current and transmits it to the electromagnets 117 and 118 to form a magnetic field. The metal parts 209 is attracted by magnetic force to drive the cleaner 20 to slide toward the electrostatic needle 102 and pass the electrostatic needle 102 through the electrostatic needle channel 202 of the cleaner 20, and the cleaning member 20 in the electrostatic needle channel 202 removes foreign matters on the electrostatic needle 102. The protrusion 206 collects and restricts the foreign matter to the storage box 208 of the housing 201.

When the cleaner 20 passes the sensors 103, 104 and the second section of the sensor waves 103 of the sensors 103, 104 detects the cleaner 20, the sensors 103, 104 generate a second sensing signal, so that the monitor 112 sends a second driving signal to cause the driver 106 to reduce the speed of the cleaner 20 so that the cleaner 20 stops safely at the second parking position.

As mentioned above, although compared with the existing static elimination device, although it has a static elimination function, it needs frequent maintenance because particles and crystals are often generated on the electrostatic needle of the existing static elimination device, which results in an imbalance of the positive and negative ions released by the electrostatic needle. The problems of electrostatic discharge, easy loss of electrostatic needles, and long static decay time, etc. The static elimination device of the present invention provides the static elimination device 10 with a timely Clean, keep the equilibrium voltage and static decay time within a predetermined range, and prevent foreign matter of the electrostatic needle from falling into the production line during cleaning. Improving product quality also greatly reduces labor investment costs. At the same time, the establishment and analysis of big data can Realize the management and improvement of core equipment and important processes, manage multiple static elimination devices at the same time, realize fully automated production, save a lot of manpower and costs, and improve product yield and stability.

The present invention has been described by the above related embodiments, but the above embodiments are merely examples for implementing the present invention. It must be noted that the disclosed embodiments do not limit the scope of the invention. On the contrary, modifications and equal arrangements included in the spirit and scope of the claims are all included in the scope of the present invention.

As used herein, the singular forms "a", "an" and "at least one" include plural references unless the context clearly dictates otherwise. For example, the term "a compound" or "at least one compound" may include multiple compounds, including mixtures thereof.

As used herein, the term "about" refers to an acceptable range of error for a particular value when determined by one of ordinary skill in the art, which depends in part on how the value is measured or determined, such as in a measurement system. limit. For example, "about" may refer to a range of up to 10%, more preferably up to 5%, and even more preferably up to 1% of a given value. When specific values are described in the specification and claims of the application, the term "about" means that the specific value is within an acceptable error range, unless stated otherwise.

Claims

A static elimination device includes:

The bottom plate is provided with an electrostatic needle which generates positive or negative ions;

A sensor, configured to generate a sensing signal when a foreign object is detected on the electrostatic needle;

The monitor includes a measurement terminal and a controller, the measurement terminal is used to measure the static electricity removing ability of the electrostatic needle, and the controller is used to determine whether to generate a driving signal according to the sensing signal or the signal of the measurement terminal ;

A cleaner slidably disposed on the base plate for sliding the cleaner toward the electrostatic needle to remove a foreign object on the electrostatic needle when receiving the driving signal; and

A data collector that collects information received from the sensor and the monitor.
The static elimination device of claim 1, wherein the cleaner comprises:

A fitting groove which slidably fixes the cleaner to the bottom plate;

An electrostatic needle channel, the opening of the electrostatic needle channel engaging the electrostatic needle;

A cleaning member located in the electrostatic needle channel to remove foreign matters on the electrostatic needle; and

A protruding portion abutting a portion of the cleaning member with respect to the storage box of the housing, the protruding portion being configured to collect and limit the foreign matter to the storage of the housing Inside the box.
The static elimination device according to claim 1, wherein the static elimination device further comprises a driver located at a first end of the bottom plate, the driver includes a power generator and an electromagnet, and the driver receives the signal from the monitor. The driving signal from the generator causes the electric power generator to generate a current and transmit the current to the electromagnet to form a magnetic field.
The static elimination device according to claim 3, wherein the electromagnet receives the current and generates a magnetic force, drives the cleaner to slide toward the second end of the bottom plate, and when the cleaner passes the sensing And the driver reduces the speed of the cleaner when the cleaner is detected by the second segment of the sensor wave.
The static elimination device according to claim 1, wherein the sensor emits a first segment of the sensing wave and a second segment of the sensing wave, and the first segment of the sensing wave is emitted to a first side of the electrostatic needle.
The static elimination device according to claim 5, wherein the sensor further comprises a third sensing wave, the third sensing wave sensing a second side of the electrostatic needle, and the first sensing wave And the third sensing wave measures the size of the foreign object on the electrostatic needle.
The static elimination device according to claim 1, wherein the static elimination ability is evaluated by analyzing an equilibrium voltage of the electrostatic needle and an electrostatic decay time, and when the equilibrium voltage or the electrostatic decay time exceeds a preset value When in range, the controller sends an alarm signal.
A cleaner for cleaning an electrostatic needle includes:

The housing includes a fitting groove and an electrostatic needle channel, the fitting groove and the electrostatic needle channel pass through the housing, and the fitting groove slidably fixes the cleaner at the electrostatic needle, The opening of the electrostatic needle channel engages the electrostatic needle;

A cleaning member located on both sides of the electrostatic needle channel in the housing to remove foreign matter on the electrostatic needle; and

A protruding portion abutting a portion of the cleaning member with respect to the storage box of the housing, the protruding portion being configured to collect and limit the foreign matter to the storage of the housing Inside the box.
The cleaner according to claim 8, wherein the cleaner comprises a metal piece, the metal piece is provided corresponding to an electromagnet, and when the electromagnet is energized, the metal piece is attracted by the magnetic force to orient the cleaner The electrostatic needle slides to remove and collect foreign objects on the electrostatic needle.
A static elimination device includes:

The bottom plate is provided with an electrostatic needle which generates positive or negative ions;

A sensor, configured to generate a sensing signal when a foreign object is detected on the electrostatic needle;

The monitor includes a measurement terminal and a controller, the measurement terminal is used to measure the static electricity removing ability of the electrostatic needle, and the controller is used to determine whether to generate a driving signal according to the sensing signal or the signal of the measurement terminal ;as well as

A cleaner is slidably disposed on the base plate, and is configured to slide the cleaner toward the electrostatic needle to remove a foreign object on the electrostatic needle when receiving the driving signal.
The static elimination device according to claim 10, wherein the cleaner comprises:

A fitting groove which slidably fixes the cleaner to the bottom plate;

An electrostatic needle channel, the opening of the electrostatic needle channel engaging the electrostatic needle;

A cleaning member located in the electrostatic needle channel to remove foreign matters on the electrostatic needle; and

A protruding portion abutting a portion of the cleaning member with respect to the storage box of the housing, the protruding portion being configured to collect and limit the foreign matter to the storage of the housing Inside the box.
The static elimination device according to claim 10, wherein the static elimination device further comprises a driver located at the first end of the bottom plate, the driver includes a power generator and an electromagnet, and the driver receives the signal from the monitor. The driving signal from the generator causes the electric power generator to generate a current and transmit the current to the electromagnet to form a magnetic field.
The static elimination device according to claim 12, wherein the electromagnet receives the current and generates a magnetic force, drives the cleaner to slide toward the second end of the bottom plate, and when the cleaner passes the sensing And the driver reduces the speed of the cleaner when the cleaner is detected by the second segment of the sensor wave.
The static elimination device according to claim 10, wherein the sensor emits a first segment of the sensing wave and a second segment of the sensing wave, and the first segment of the sensing wave is emitted to a first side of the electrostatic needle.
The static elimination device according to claim 14, wherein the sensor further comprises a third sensing wave, the third sensing wave sensing a second side of the electrostatic needle, and the first sensing wave And the third sensing wave measures the size of the foreign object on the electrostatic needle.
The static elimination device according to claim 10, wherein the static elimination ability is evaluated by analyzing an equilibrium voltage of the electrostatic needle and an electrostatic decay time, and when the equilibrium voltage or the electrostatic decay time exceeds a preset value When in range, the controller sends an alarm signal.