Industrial static prevention and control system

Abstract

The utility model belongs to the technical field of electrostatic protection, and particularly relates to an industrial electrostatic prevention and control system, which comprises an electrostatic monitoring subsystem, an electrostatic protection subsystem, an electrostatic elimination subsystem and an environment monitoring subsystem, and is characterized in that the electrostatic monitoring subsystem is in communication connection with the electrostatic protection subsystem, the electrostatic elimination subsystem and the environment monitoring subsystem; the environment monitoring subsystem comprises a plurality of detection devices arranged in a PCB assembly workshop and is used for detecting and reporting environment data of the PCB assembly workshop; the electrostatic protection subsystem comprises a plurality of electrostatic protection devices arranged in a PCB assembly workshop and is used for performing electrostatic protection and detection on personnel and equipment in the PCB assembly workshop; the electrostatic elimination subsystem comprises a plurality of electrostatic elimination devices arranged in a PCB assembly workshop and is used for inhibiting electrostatic charges of electrical components on a PCB; and the electrostatic monitoring subsystem is used for providing monitoring, warning and electrostatic elimination control of electrostatic protection of the PCB assembly workshop, so that the electrostatic prevention and control effect of the PCB assembly workshop is improved.

Description

Technical Field

[0001] The present application belongs to the field of electrostatic protection technology, and specifically relates to an industrial electrostatic prevention and control system. Background Art

[0002] With the continuous advancement of global industrial technology, the industrial electronics manufacturing industry is also developing rapidly. The degree to which electronic components are affected by static electricity varies depending on their type. In recent years, as the functions of electronic products have become increasingly complex and electronic components have tended to be integrated, the requirements for static electricity protection during their production process have also been continuously increasing.

[0003] Household appliances contain numerous precision electronic components on their printed circuit boards (PCBs), many of which are voltage-sensitive. Voltage surges exceeding the rated voltage can damage these components. However, accurately screening PCBs damaged by static electricity during functional testing can be difficult. Even if some PCBs function normally during testing, they may malfunction after the product is put into use due to static damage, posing a risk to the product's safe operation.

[0004] Therefore, in the production and assembly process of electronic components, how to improve the electrostatic prevention and control effect in the production and assembly environment is of great significance to improving the reliability of electronic components and improving product quality. Utility Model Content

[0005] The present application provides an industrial static electricity prevention and control system to solve the problem of static electricity that is easily generated in the production and assembly environment of electronic components.

[0006] In a first aspect, the present application provides an industrial static electricity prevention and control system, the system comprising an static electricity monitoring subsystem, an static electricity protection subsystem, a static electricity elimination subsystem, and an environmental monitoring subsystem, wherein the static electricity monitoring subsystem is communicatively connected to the static electricity protection subsystem, the static electricity elimination subsystem, and the environmental monitoring subsystem, respectively;

[0007] The environmental monitoring subsystem includes a plurality of detection devices arranged in the PCB assembly workshop, and the detection devices are used to detect and report environmental data of the PCB assembly workshop;

[0008] The electrostatic protection subsystem includes multiple electrostatic protection devices installed in the PCB assembly workshop to provide electrostatic protection and detection for personnel and equipment in the PCB assembly workshop;

[0009] The static elimination subsystem includes multiple static elimination devices installed in the PCB assembly workshop to suppress the static charge of electrical components on the PCB board;

[0010] The electrostatic monitoring subsystem is used to provide monitoring, alarming, and electrostatic elimination control for electrostatic protection in the PCB assembly workshop.

[0011] In one possible design, the plurality of static eliminators include a plurality of humidifying devices and a plurality of dehumidifying devices;

[0012] The electrostatic monitoring subsystem is specifically used for:

[0013] When the environmental data indicates that the ambient humidity of the PCB assembly workshop is greater than a first preset threshold, controlling the dehumidification device to perform a dehumidification operation on the PCB assembly workshop;

[0014] When the environmental data indicates that the ambient humidity of the PCB assembly workshop is less than a second preset threshold, the humidifying device is controlled to perform a humidification operation on the PCB assembly workshop; and the first preset threshold is greater than the second preset threshold.

[0015] In one possible design, the humidifying device is a dry mist humidifier;

[0016] The dry mist humidifier includes an atomizing nozzle, a water pipeline and a pressurized gas pipeline. The water inlet of the atomizing nozzle is connected to the water outlet of the water pipeline, and the air inlet of the atomizing nozzle is connected to the air outlet of the pressurized gas pipeline. After the water in the water pipeline and the gas in the pressurized gas pipeline enter the atomizing nozzle, they mix to form fine mist and are sprayed out from the mist outlet of the atomizing nozzle.

[0017] In one possible design, the PCB board assembly workshop includes at least one assembly line, each of which includes at least one workstation; the static elimination subsystem also includes a DC ion fan corresponding to at least one workstation, which is used to locally dissipate and neutralize the static charge carried by the electrical components on the PCB board at the corresponding workstation through air ionization.

[0018] In one possible design, the type of the DC ion blower is related to the length of the corresponding assembly line station.

[0019] In one possible design, the static electricity monitoring subsystem includes: a control device, a display device, and an alarm device;

[0020] The control device is respectively in communication with the display device, the alarm device, the electrostatic protection subsystem, the electrostatic elimination subsystem and the environmental monitoring subsystem;

[0021] The control device is used to control the display device to display the monitoring data and alarm data of the electrostatic protection of the PCB board assembly workshop, and to control the alarm device to output the alarm prompt of the electrostatic protection of the PCB board assembly workshop.

[0022] In one possible design, the alarm device includes indicator lights of multiple colors;

[0023] When an electrostatic protection alarm is triggered in the PCB assembly workshop, an indicator light corresponding to the alarm color lights up;

[0024] When there is no alarm for electrostatic protection in the PCB assembly workshop, an indicator light of a color corresponding to no alarm is lit.

[0025] In one possible design, the environmental monitoring subsystem includes a temperature sensor, a humidity sensor, and a particle concentration sensor, and the environmental data includes temperature values, humidity values, and particle concentration values.

[0026] In one possible design, the PCB assembly workshop includes at least one assembly line, each of which includes at least one workstation; the electrostatic protection subsystem includes an electrostatic protection wrist strap and an anti-static mat provided at the workstation, and a charge test sensor installed around the assembly line;

[0027] The charge test sensor is used to detect the electrostatic voltage around the test assembly line.

[0028] In one possible design, the electrostatic protection subsystem further includes an electrostatic monitoring gate, which is used to detect whether the personnel are grounded and release static electricity before entering the PCB assembly workshop.

[0029] The industrial static electricity prevention and control system provided in the present application includes an static electricity monitoring subsystem, an static electricity protection subsystem, an static electricity elimination subsystem, and an environmental monitoring subsystem. The static electricity monitoring subsystem is communicatively connected to the static electricity protection subsystem, the static electricity elimination subsystem, and the environmental monitoring subsystem respectively; the environmental monitoring subsystem includes multiple detection devices arranged in a PCB board assembly workshop, and the detection devices are used to detect and report environmental data of the PCB board assembly workshop; the static electricity protection subsystem includes multiple static electricity protection devices arranged in the PCB board assembly workshop, which provide static electricity protection and detection for personnel and equipment in the PCB board assembly workshop; the static electricity elimination subsystem includes multiple static electricity elimination devices arranged in the PCB board assembly workshop, which are used to suppress the static electricity charge of electrical components on the PCB board; the static electricity monitoring subsystem is used to provide static electricity protection monitoring, alarm, and static electricity elimination control for the PCB board assembly workshop, which reduces the amount of static electricity generated by blocking the source of static electricity charge and reduces the amount of static electricity accumulation by promoting the dissipation of static electricity charge, thereby improving the static electricity prevention and control effect in the PCB board assembly workshop. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0031] Figure 1 A schematic diagram of the structure of an industrial static electricity prevention and control system provided in this application;

[0032] Figure 2 This is a schematic diagram of the structure of another industrial static electricity prevention and control system provided in this application.

[0033] Description of reference numerals:

[0034] 10-static monitoring subsystem;

[0035] 20- electrostatic protection subsystem;

[0036] 30-static elimination subsystem;

[0037] 40-Environmental monitoring subsystem;

[0038] 101-control device;

[0039] 102-display device;

[0040] 103-Alarm device.

[0041] The above drawings illustrate specific embodiments of the present application, which will be described in more detail below. These drawings and the textual description are not intended to limit the scope of the present application in any way, but rather to illustrate the concepts of the present application to those skilled in the art by reference to specific embodiments. DETAILED DESCRIPTION

[0042] To make the objectives, technical solutions, and advantages of this application more clear, the technical solutions in this application will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the embodiments described are only part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0043] The terms "first," "second," "third," "fourth," and so forth (if any) in the specification and claims of this application and in the accompanying drawings are used to distinguish similar objects and are not necessarily used to describe a particular order or sequential sequence. It should be understood that the terms used in this manner are interchangeable where appropriate, such that the embodiments of the application described herein can, for example, be implemented in an order other than that illustrated or described herein.

[0044] In the embodiments of this application, words such as "exemplary" or "for example" are used to indicate examples, illustrations, or descriptions. Any embodiment or design described in this application as "exemplary" or "for example" should not be construed as being preferred or advantageous over other embodiments or designs. Rather, the use of words such as "exemplary" or "for example" is intended to present the relevant concepts in a concrete manner.

[0045] Furthermore, the terms "disposed," "connected," and "fixed" should be interpreted broadly. For example, "connected" can mean a fixed connection, a removable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be a direct connection, an indirect connection through an intermediary, or an internal connection between two devices, elements, or components. Those skilled in the art will understand the specific meanings of these terms in the embodiments of this disclosure based on the specific circumstances.

[0046] Unless otherwise stated, the term "plurality" means two or more.

[0047] With the continuous advancement of global industrial technology, the industrial electronics manufacturing industry is also developing rapidly. The degree to which electronic components are affected by static electricity varies depending on their type. In recent years, as the functions of electronic products have become increasingly complex and electronic components have tended to be integrated, the requirements for static electricity protection during their production process have also been continuously increasing.

[0048] Household appliances contain numerous precision electronic components on their printed circuit boards (PCBs), many of which are voltage-sensitive. Voltage surges exceeding the rated voltage can damage these components. However, accurately screening PCBs damaged by static electricity during functional testing can be difficult. Even if some PCBs function normally during testing, they may malfunction after the product is put into use due to static damage, posing a risk to the product's safe operation.

[0049] Therefore, in the production and assembly process of electronic components, how to improve the electrostatic prevention and control effect in the production and assembly environment is of great significance to improving the reliability of electronic components and improving product quality.

[0050] In view of this, the present application provides an industrial static electricity prevention and control system, which includes an static electricity monitoring subsystem, an static electricity protection subsystem, an static electricity elimination subsystem, and an environmental monitoring subsystem. The static electricity monitoring subsystem is respectively communicated with the static electricity protection subsystem, the static electricity elimination subsystem, and the environmental monitoring subsystem; the environmental monitoring subsystem includes a plurality of detection devices arranged in a PCB board assembly workshop, and the detection devices are used to detect and report environmental data of the PCB board assembly workshop, so as to timely discover and report environmental anomalies in the PCB board assembly workshop; the static electricity protection subsystem includes a plurality of static electricity protection devices arranged in the PCB board assembly workshop, The PCB assembly workshop implements electrostatic protection and detection for personnel and equipment, thereby providing comprehensive and effective protection and detection against static electricity that may be introduced by personnel and equipment within the workshop. The electrostatic elimination subsystem, comprising multiple electrostatic elimination devices installed in the PCB assembly workshop, is used to suppress the electrostatic charge of electrical components on PCBs to prevent damage caused by excessive electrostatic charge on the electrical components on the PCBs. The electrostatic monitoring subsystem is used to provide electrostatic protection monitoring, alarms, and electrostatic elimination control for the PCB assembly workshop, thereby promptly detecting, prompting, and addressing potential electrostatic threats in the PCB assembly workshop.

[0051] The following specific embodiments describe in detail the technical solution of the present application and how the technical solution of the present application solves the above-mentioned technical problems. The following specific embodiments can exist independently or in combination with each other. For the same or similar concepts or processes, they may not be repeated in some embodiments. The embodiments of the present application will be described below in conjunction with the accompanying drawings.

[0052] Figure 1 This is a schematic diagram of the structure of an industrial static electricity prevention and control system provided in an embodiment of the present application; Figure 1 As shown, an embodiment of the present application provides an industrial static electricity prevention and control system, including: an static electricity monitoring subsystem 10, an static electricity protection subsystem 20, an static electricity elimination subsystem 30 and an environmental monitoring subsystem 40, and the static electricity monitoring subsystem 10 is communicatively connected to the static electricity protection subsystem 20, the static electricity elimination subsystem 30 and the environmental monitoring subsystem 40 respectively.

[0053] The environmental monitoring subsystem 40 includes a plurality of detection devices arranged in the PCB assembly workshop, and the detection devices are used to detect and report the environmental data of the PCB assembly workshop so that the electrostatic monitoring subsystem can obtain real-time environmental data of the PCB assembly workshop in a timely manner.

[0054] The electrostatic protection subsystem 20 includes multiple electrostatic protection devices installed in the PCB board assembly workshop, which provide electrostatic protection and detection for personnel and equipment in the PCB board assembly workshop, thereby monitoring the occurrence of electrostatics among personnel and equipment in the PCB board assembly workshop and reducing the probability of electrostatics occurring among personnel and equipment in the PCB board assembly workshop.

[0055] The static elimination subsystem 30 includes multiple static elimination devices installed in the PCB board assembly workshop, which are used to suppress the static charge of electrical components on the PCB board, effectively preventing excessive accumulation of static charge on the electrical components on the PCB board and causing damage to the electrical components.

[0056] The electrostatic monitoring subsystem 10 is used to provide electrostatic protection monitoring, alarm, and electrostatic elimination control for the PCB board assembly workshop. Based on the environmental data reported by the environmental monitoring subsystem 40 and the electrostatic protection status reported by the electrostatic protection subsystem 20, when it is determined that there may be an electrostatic threat in the PCB board assembly workshop, it issues an alarm signal and controls the electrostatic elimination subsystem to eliminate electrostatic charges.

[0057] The industrial static electricity prevention and control system provided in the embodiment of the present application includes: an static electricity monitoring subsystem, an static electricity protection subsystem, an static electricity elimination subsystem, and an environmental monitoring subsystem. The environmental monitoring subsystem obtains environmental data in a PCB board assembly workshop, obtains static electricity protection and static electricity detection for personnel and equipment in the PCB board assembly workshop through the static electricity protection subsystem, eliminates the static electricity charge of electrical components on the PCB board through the static electricity elimination subsystem, and performs alarm and static electricity elimination control based on the static electricity detection data and environmental data in the PCB board assembly workshop through the static electricity monitoring subsystem. The system has high linkage and real-time performance, reduces the amount of static electricity charge generated by blocking the source of static electricity charge, and reduces the amount of static electricity charge accumulation by promoting the dissipation of static electricity charge, thereby reducing the probability of static electricity discharge of electrical components on the PCB board, improving the static electricity prevention and control effect in the PCB board assembly workshop, and effectively preventing the electrical components on the PCB board from being damaged by static electricity.

[0058] Please refer to Figure 2 , Figure 2 A schematic diagram of the structure of another industrial static electricity prevention and control system provided in an embodiment of the present application.

[0059] In some possible implementations, the environmental data may include temperature values, humidity values, and particle concentration values ​​in the PCB assembly workshop; the multiple detection devices may include a temperature sensor, a humidity sensor, and a particle concentration sensor.

[0060] In some possible implementations, the plurality of static eliminators include a plurality of humidifying devices and a plurality of dehumidifying devices.

[0061] Exemplarily, the humidifying device may be an ultrasonic humidifier, a roller humidifier, a mist humidifier, etc., and the dehumidifying device may be a cooling dehumidifier, a roller dehumidifier, a duct dehumidifier, etc.

[0062] In some possible implementations, the electrostatic monitoring subsystem 10 controls the dehumidification device to perform a dehumidification operation on the PCB board assembly workshop when the environmental data indicates that the ambient humidity of the PCB board assembly workshop is greater than a first preset threshold value; and controls the humidification device to perform a humidification operation on the PCB board assembly workshop when the environmental data indicates that the ambient humidity of the PCB board assembly workshop is less than a second preset threshold value.

[0063] The first preset threshold is greater than the second preset threshold; the ambient humidity is relative humidity, the first preset threshold may be, for example, 60%, and the second preset threshold may be, for example, 40%.

[0064] Understandably, different ambient humidity levels have different effects on preventing static electricity. Water molecules are polar and can form a conductive film on the surface of materials, helping to diffuse charges. In low-humidity environments, the air contains fewer water molecules, and the surface of the PDB board lacks moisture. This conductive film becomes very thin or almost non-existent, resulting in reduced conductivity on the surface of the material. Low conductivity means that charges have difficulty moving and diffusing on the surface of the material, and are prone to accumulation in localized areas. When the accumulated charge reaches a certain level, electrostatic discharge may occur, which is very dangerous during the assembly of electronic components and PCB boards.

[0065] Within a moderate humidity range, there are enough water molecules in the air to form a thin conductive film on the surface of the PCB material. This conductive film makes the conductivity of the material surface moderate, and charges can move and diffuse more easily on the material surface, preventing local charge accumulation, thereby reducing the possibility of electrostatic discharge. In a high humidity environment, the water molecule content in the air is too high, and the material surface may absorb too much water, forming a thicker water film. Although this water film reduces the risk of static electricity accumulation, excessive water may affect other properties of the material and even cause problems such as short circuits. In view of this, the electrostatic monitoring subsystem 10 can control the dehumidification device to dehumidify the PCB assembly workshop when the environmental data indicates that the ambient humidity of the PCB assembly workshop is greater than a first preset threshold; and control the humidification device to humidify the PCB assembly workshop when the environmental data indicates that the ambient humidity of the PCB assembly workshop is less than a second preset threshold, so as to maintain the ambient humidity of the PCB assembly workshop within an appropriate range and ensure the electrostatic protection effect.

[0066] In some possible implementations, the humidifying device may be a dry mist humidifier.

[0067] The dry mist humidifier includes an atomizing nozzle, a water supply pipeline and a pressurized gas supply pipeline. The water inlet of the atomizing nozzle is connected to the water outlet of the water supply pipeline, and the air inlet of the atomizing nozzle is connected to the air outlet of the pressurized gas supply pipeline. After the water in the water supply pipeline and the gas in the pressurized gas supply pipeline enter the atomizing nozzle, they mix to form fine mist and are sprayed out from the mist outlet of the atomizing nozzle, thereby increasing the ambient humidity.

[0068] Understandably, the dry mist humidifier produces fine mist through an atomizing nozzle, which has low energy consumption and a fast response speed in producing water mist. The dry mist humidifier can produce very fine water mist particles, whose diameter is usually between 1-10 microns. These fine water mist particles can be evenly distributed in the air, evaporate quickly and increase the air humidity without producing large water droplets or wet spots, which will cause uneven humidification and even cause water accumulation and dew accumulation on the surface of electrical components or equipment, leading to dangerous situations such as short circuits. In addition, the dry mist humidifier has a simple structure, a long component life, and low maintenance costs.

[0069] In some possible implementations, the multiple static elimination devices further include an air purification device.

[0070] The air purification device may include, for example, a high efficiency filter and an activated carbon filter.

[0071] In some possible implementations, when environmental data indicates that the particle concentration in a PCB board assembly workshop is greater than a third preset threshold, the electrostatic monitoring subsystem 10 controls an air purification device to perform an air purification operation on the PCB board assembly workshop, and can also control a humidification device to perform a humidification operation on the PCB board assembly workshop, so as to reduce the particle concentration in the PCB board assembly workshop to below the third preset threshold.

[0072] It is understandable that dust and other particles in the air can carry electric charges and become carriers of static electricity. When these charged particles move in the air, they tend to accumulate on the surfaces of equipment, work surfaces, and electronic components, increasing the accumulation of static electricity. When dust particles rub against the surfaces of other objects in the air, static electricity is generated. This frictional electrification phenomenon further increases the risk of static electricity accumulation. In addition, dust particles may adhere to the surface of electrostatic protection equipment (such as electrostatic protection wrist straps and anti-static mats), affecting their grounding effect and may also increase the grounding resistance, thereby reducing the effectiveness of electrostatic protection equipment. For electronic components on PCB boards, dust particles adhere to the surface of electronic components. , and may also affect its electrical performance and reliability, especially for high-precision and high-sensitivity electronic components. Dust pollution may cause short circuits, leakage and other problems, and charged dust particles accumulate on the surface of electronic components. When a certain voltage is reached, electrostatic discharge will occur, which may cause component damage or performance degradation; for electrostatic detection devices, dust particles may interfere with their readings, resulting in false alarms or missed alarms. For example, charged dust particles may affect the electric field strength measurement of electric field sensing sensors, resulting in erroneous electrostatic charge readings. Therefore, the air in the workshop can be purified by an air purification device to maintain the particle concentration value in the air within a safe range.

[0073] In some possible implementations, the PCB assembly workshop includes at least one assembly line, and each assembly line includes at least one workstation.

[0074] In some possible implementations, the static elimination subsystem 30 further includes a DC ion blower corresponding to at least one workstation, which is used to locally dissipate and neutralize the static charge carried by electrical components on the PCB board of the corresponding workstation through air ionization.

[0075] Among them, the DC ion blower includes a DC power supply, an ion generator, a blower, a casing, a bracket and a controller; when the DC power supply acts on the ion generator, a stable electric field will be generated between the electrodes of the ion generator, so that the molecules in the air (such as oxygen and nitrogen) are ionized to produce positive ions and negative ions, and the blower drives the air to blow the generated positive and negative ions to the target area. When the positive and negative ions come into contact with the surface of the charged object, they will neutralize the static charge on the surface of the object, thereby eliminating static electricity. At the same time, the negative ions combine with the particles in the air, causing them to aggregate and settle, which also has a certain effect on reducing the particle concentration value in the workshop; the DC power supply of the DC ion blower is not affected by the frequency and fluctuation of the AC power supply. Compared with the AC power supply of the AC ion blower, the electric field strength generated by the AC power supply is more stable, and it can operate at a lower equilibrium voltage, with higher low voltage safety, ensuring that the ion generator can continuously and efficiently ionize air molecules, the number and distribution of ions are more uniform, and the static electricity neutralization effect is better.

[0076] In some possible implementations, the DC ion blower further includes a filter to filter particulate matter in the air, protect the ion generator and the fan, extend the life of the equipment, and also reduce the concentration of particulate matter in the PCB assembly workshop.

[0077] In some possible implementations, the DC ion fan also includes a self-cleaning device, which can automatically remove dust accumulated on the ion generator according to the self-cleaning frequency set by the user, reduce maintenance workload, improve the long-term stability of the DC ion fan, and maintain the efficient operation of the DC ion fan.

[0078] In some possible implementations, the type of the DC ion blower is related to the length of the corresponding assembly line station.

[0079] Among them, the types of the DC ion blower may include, for example: a single-head DC ion blower, a double-head DC ion blower, a three-head DC ion blower, a DC ion wind wand, etc.

[0080] It is understandable that since different types of DC ion fans can cover target areas of different sizes, by reasonably selecting and configuring the correspondence between the types of DC ion fans and different assembly line stations, the different lengths of assembly line stations can be effectively covered to ensure the comprehensiveness and effectiveness of electrostatic protection; shorter assembly line stations can be effectively covered using a single-head fan, double-head fans have a wider coverage range and are suitable for medium-length stations, three-head fans can cover longer stations, and the ion wind rod can be customized in length and is suitable for extra-long stations.

[0081] In some possible implementations, a single-head DC ion blower is installed above or on the side of its corresponding assembly line station, and the target area of ​​its ion generating head covers the entire assembly line station; a double-head DC ion blower is installed above or on both sides of its corresponding assembly line station, and the target areas of its two ion generating heads respectively cover different areas of the assembly line station; a three-head DC ion blower is installed above or on three sides of its corresponding assembly line station, and the target areas of its three ion generating heads respectively cover different areas of the assembly line station; a DC ion wind wand is installed above the station and installed parallel to the length of the station, with multiple ion generating heads evenly distributed, and the target areas of the multiple ion generating heads respectively cover different areas of the assembly line station.

[0082] In some possible implementations, the electrostatic protection subsystem includes an electrostatic protection wrist strap and an anti-static mat provided at the workstation of the assembly line, and a charge test sensor installed around the assembly line.

[0083] In some possible implementations, the electrostatic protection wristband is provided with a photoelectric sensing device to determine whether the electrostatic protection wristband is correctly worn by the worker based on a photoelectric sensing signal.

[0084] In some possible implementations, the electrostatic protection wrist strap is connected to the grounding wire of the PCB board assembly workshop through its grounding end, the anti-static table mat is connected to the grounding wire of the PCB board assembly workshop through the grounding end, and the grounding ends of the equipment and shelves of the assembly line are connected to the grounding wire of the PCB board assembly workshop to conduct the generated electrostatic voltage into the ground, prevent it from accumulating on personnel, equipment and electronic components, and protect electronic components from electrostatic damage; the above-mentioned grounding ends can all be independently provided with a resistance detection device to detect the grounding resistance at the grounding end to ensure the grounding reliability of the PCB board assembly workshop.

[0085] In some possible implementations, the charge test sensor includes an electric field sensing sensor and a capacitance sensing sensor.

[0086] It can be understood that the electric field sensing sensor can sense the presence of charges at a longer distance and is suitable for detecting electrostatic charges at a longer distance; the capacitive sensing sensor is suitable for detecting electrostatic charges at a short distance, especially when the charges are in direct contact with or close to the capacitor plate, and its measurement accuracy is higher.

[0087] In some possible implementations, the electric field sensing sensor can be set above or on the side of the assembly line, at a certain distance from the assembly line, to cover a larger detection area and monitor the electrostatic charge of the entire working area; the capacitive sensing sensor can be set near the parts of the assembly equipment that are prone to static electricity and electrostatic sensitive parts (such as the operating area of ​​the work surface, conveyor belt and robotic arm, etc.) to perform high-precision electrostatic detection on specific areas and realize key monitoring.

[0088] In some possible implementations, the electrostatic protection subsystem 20 further includes an electrostatic monitoring gate, which is used to detect whether a person is electrostatically grounded and releases static electricity before entering the PCB assembly workshop.

[0089] In some possible implementations, the electrostatic monitoring gate allows a person to enter the PCB assembly workshop only after detecting that the electrostatic voltage value of the human body is lower than a safety threshold.

[0090] In some possible implementations, the static electricity monitoring subsystem 10 includes: a control device 101 , a display device 102 , and an alarm device 103 .

[0091] The control device 101 is in communication connection with the display device 102 , the alarm device 103 , the electrostatic protection subsystem 20 , the electrostatic elimination subsystem 30 , and the environment monitoring subsystem 40 , respectively.

[0092] The control device 101 is used to control the display device 102 to display the monitoring data and alarm data of the electrostatic protection of the PCB board assembly workshop, and to control the alarm device 103 to output the alarm prompt of the electrostatic protection of the PCB board assembly workshop.

[0093] In some possible implementations, the alarm device 103 includes indicator lights of multiple colors.

[0094] When there is an alarm for electrostatic protection in the PCB assembly workshop, the indicator light of the color corresponding to the alarm is lit; when there is no alarm for electrostatic protection in the PCB assembly workshop, the indicator light of the color corresponding to no alarm is lit.

[0095] For example, the color corresponding to no alarm is green, and the indicator lights corresponding to the alarm colors are red and yellow. When there is an abnormality in the electrostatic protection data reported by the electrostatic protection subsystem 20, the control device 101 controls the red indicator light to light up. When there is an abnormality in the environmental data reported by the environmental monitoring subsystem 40, the control device 101 controls the yellow indicator light to light up.

[0096] So far, the technical solution of the present application has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the scope of protection of the present application is obviously not limited to these specific embodiments. The above embodiments are only used to illustrate the technical solution of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some or all of the technical features therein. However, these modifications or replacements do not cause the essence of the corresponding technical solution to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. An industrial static electricity prevention and control system, characterized in that: The system includes an electrostatic monitoring subsystem, an electrostatic protection subsystem, an electrostatic elimination subsystem, and an environmental monitoring subsystem, wherein the electrostatic monitoring subsystem is communicatively connected to the electrostatic protection subsystem, the electrostatic elimination subsystem, and the environmental monitoring subsystem respectively; The environmental monitoring subsystem includes a plurality of detection devices arranged in the PCB assembly workshop, and the detection devices are used to detect and report environmental data of the PCB assembly workshop; The electrostatic protection subsystem includes multiple electrostatic protection devices installed in the PCB assembly workshop to provide electrostatic protection and detection for personnel and equipment in the PCB assembly workshop; The static elimination subsystem includes multiple static elimination devices installed in the PCB assembly workshop to suppress the static charge of electrical components on the PCB board; The electrostatic monitoring subsystem is used to provide monitoring, alarming, and electrostatic elimination control for electrostatic protection in the PCB assembly workshop.

2. The industrial static electricity prevention and control system according to claim 1, characterized in that: The plurality of static eliminators include a plurality of humidifying devices and a plurality of dehumidifying devices; The electrostatic monitoring subsystem is specifically used for: When the environmental data indicates that the ambient humidity of the PCB assembly workshop is greater than a first preset threshold, controlling the dehumidification device to perform a dehumidification operation on the PCB assembly workshop; When the environmental data indicates that the ambient humidity of the PCB assembly workshop is less than a second preset threshold, controlling the humidifying device to perform a humidifying operation on the PCB assembly workshop; The first preset threshold is greater than the second preset threshold.

3. The industrial static electricity prevention and control system according to claim 2, characterized in that: The humidifying device is a dry mist humidifier; The dry mist humidifier includes an atomizing nozzle, a water pipeline and a pressurized gas pipeline. The water inlet of the atomizing nozzle is connected to the water outlet of the water pipeline, and the air inlet of the atomizing nozzle is connected to the air outlet of the pressurized gas pipeline. After the water in the water pipeline and the gas in the pressurized gas pipeline enter the atomizing nozzle, they mix to form fine mist and are sprayed out from the mist outlet of the atomizing nozzle.

4. The industrial static electricity prevention and control system according to claim 2, characterized in that: The PCB board assembly workshop includes at least one assembly line, each of which includes at least one workstation; the static elimination subsystem also includes a DC ion fan corresponding to at least one workstation, which is used to locally dissipate and neutralize the static charge carried by the electrical components on the PCB board at the corresponding workstation through air ionization.

5. The industrial static electricity prevention and control system according to claim 4, characterized in that: The type of the DC ion blower is related to the length of the corresponding assembly line station.

6. The industrial static electricity prevention and control system according to any one of claims 1 to 5, characterized in that: The static electricity monitoring subsystem includes: a control device, a display device, and an alarm device; The control device is respectively in communication with the display device, the alarm device, the electrostatic protection subsystem, the electrostatic elimination subsystem and the environmental monitoring subsystem; The control device is used to control the display device to display the monitoring data and alarm data of the electrostatic protection of the PCB board assembly workshop, and to control the alarm device to output the alarm prompt of the electrostatic protection of the PCB board assembly workshop.

7. The industrial static electricity prevention and control system according to claim 6, characterized in that: The alarm device includes indicator lights of multiple colors; When an electrostatic protection alarm is triggered in the PCB assembly workshop, an indicator light corresponding to the alarm color lights up; When there is no alarm for electrostatic protection in the PCB assembly workshop, an indicator light of a color corresponding to no alarm is lit.

8. The industrial static electricity prevention and control system according to any one of claims 1 to 5, characterized in that: The environmental monitoring subsystem includes a temperature sensor, a humidity sensor, and a particle concentration sensor, and the environmental data includes temperature values, humidity values, and particle concentration values.

9. The industrial static electricity prevention and control system according to any one of claims 1 to 5, characterized in that: The PCB assembly workshop includes at least one assembly line, each of which includes at least one workstation; the electrostatic protection subsystem includes an electrostatic protection wrist strap and an anti-static mat provided at the workstation, as well as a charge test sensor installed around the assembly line; The charge test sensor is used to detect the electrostatic voltage around the test assembly line.

10. The industrial static electricity prevention and control system according to any one of claims 1 to 5, characterized in that: The electrostatic protection subsystem also includes an electrostatic monitoring gate, which is used to detect whether personnel are electrostatically grounded and release static electricity before entering the PCB assembly workshop.

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