Electrostatic bracelet with detection and synchronous control function

Abstract

The utility model discloses a static bracelet with detection and synchronous control function belongs to microelectronic and electronic component production technical field, and its technical scheme main points include static bracelet main part and control box, and the application is through setting static bracelet main part and foolproof control structure, and static bracelet main part is closely combined with the conductive fiber layer and the conductive buckle in the wristband inner side, and the human body static electricity can be effectively conducted through 1 megaohm current -limiting resistance, elastic shielding wire, and the foolproof control structure can detect the bracelet wearing state and performance in real time, avoid the problem of " only alarm does not prevent operation", only wear the qualified bracelet can allow the work area lamps and lanterns equipment start, and the staff through the outage, cheating and other ways to avoid the detection situation, and the static electricity harm is blocked from the source, and the protection design of 1 megaohm current -limiting resistance of static bracelet main part self -carrying cooperation foolproof control structure can reduce the risk of electric shock.

Description

Technical Field

[0001] This utility model relates to the field of microelectronics and electronic component manufacturing technology, and in particular to an electrostatic wristband with detection and synchronous control functions. Background Technology

[0002] In the field of microelectronics and electronic component manufacturing, static electricity is a major hidden danger that can cause breakdown and damage to precision components such as chips and integrated circuits. Therefore, strict anti-static measures must be taken during the production process. Wearing an anti-static wrist strap is one of the most basic and critical methods. The anti-static wrist strap conducts static electricity from the human body to the ground, preventing static electricity accumulation from damaging components. Its core requirements are that it must be worn effectively at all times and that its own performance is qualified.

[0003] However, existing electrostatic wrist strap detection devices have several key shortcomings in practical applications: First, they lack foolproof capabilities, only issuing alarm signals when the wrist strap is not worn or is faulty, failing to fundamentally prevent employees from continuing to work. Employees can "cheat" by turning off the device's power or bypassing the alarm, allowing them to use work area lights and other equipment normally without the wrist strap, making it difficult to eliminate electrostatic hazards. Second, they lack safety protection, with most devices failing to consider strong and weak current safety isolation design, directly linking the low-voltage weak current circuit of the wrist strap detection to the 220V strong current circuit of the lighting fixtures, and lacking leakage protection mechanisms, posing a risk of electric shock. Third, they lack energy consumption control, lacking energy-saving designs such as "lights off when people leave," meaning the work lights remain on even after employees remove their wrist straps, resulting in energy waste and shortening the lifespan of the lights.

[0004] To address this, an electrostatic wristband with detection and synchronous control functions is proposed. Utility Model Content

[0005] The purpose of this invention is to provide an electrostatic wristband with detection and synchronous control functions, which can solve several key defects of existing electrostatic wristband detection devices in practical applications: First, insufficient error prevention capability; it can only issue an alarm signal when the wristband is not worn or the wristband is unqualified, which cannot fundamentally prevent employees from continuing to work. Employees can "cheate" by turning off the device power or bypassing the alarm device, and can still use the work area lights and other equipment normally without wearing the wristband, making it difficult to eliminate electrostatic hazards. Second, lack of safety protection; most devices do not consider the safety isolation design of strong and weak currents, directly linking the low-voltage weak current circuit of the wristband detection to the 220V strong current circuit of the lighting fixtures, and lacking a leakage protection mechanism, posing a risk of electric shock. Third, insufficient energy consumption control; it lacks the energy-saving design of "lights off when people leave," and the work lights continue to be lit after the employee removes the wristband, which not only wastes energy but also shortens the lifespan of the lights.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an electrostatic wristband with detection and synchronous control functions, comprising an electrostatic wristband body and a control box, wherein the control box is provided with a foolproof control structure; The electrostatic bracelet body includes a wristband, a housing fixedly connected to the front side of the wristband, a receiving groove on the front side of the housing, a conductive fiber layer inside the wristband, a conductive buckle snapped into the rear side of the receiving groove, the rear side of the conductive buckle tightly fitting the front side of the conductive fiber layer, a wire connector welded to the left side of the conductive buckle, a 1 megohm current-limiting resistor connected in series between the wire connector and the conductive buckle, an elastic shielded wire on the left side of the housing, a plug at one end of the elastic shielded wire inserted into the inside of the wire connector, and a connector at the end of the elastic shielded wire away from the wire connector inserted into a foolproof control structure, and a cover snapped into the front side of the housing.

[0007] Preferably, the foolproof control structure includes a control motherboard disposed inside the control box. A microcontroller and a voltage detection circuit are respectively disposed on the top of the control motherboard. An indicator light is embedded in the front side of the control box. The indicator light is electrically connected to the control motherboard. The indicator light is divided into a green working light and a red alarm light.

[0008] Preferably, a lighting driver module is provided on the top of the control motherboard. The lighting driver module is electrically connected to the microcontroller and consists of a relay and a relay driver circuit.

[0009] Preferably, the top of the control motherboard is provided with a strong and weak current isolation module, which is electrically connected to the microcontroller. The strong and weak current isolation module adopts an optocoupler. The rear side of the control box is provided with a power interface, and a leakage protection switch is connected in series between the power interface and the lamp driver module. The left side of the control box is provided with a wristband interface and a lamp interface. The wristband interface is plugged into the connector of the flexible shielded wire away from the wire connector. A lamp connection cable is soldered to the outside of the lamp interface.

[0010] Preferably, a clamping block is fixedly connected to the rear side of the cover, and the clamping block is located on the front side of the conductive buckle.

[0011] Preferably, a support base is provided on the bottom side inside the control box, and the top of the support base is bolted to the bottom of the control motherboard.

[0012] Preferably, a delay adjustment knob is provided on the front side of the top of the control motherboard, and the delay adjustment knob is electrically connected to the microcontroller.

[0013] Compared with the prior art, the beneficial effects of this utility model are: 1. This application sets up an electrostatic wristband body and a foolproof control structure. The electrostatic wristband body is tightly attached to the conductive buckle through the conductive fiber layer on the inside of the wristband, ensuring that the static electricity of the human body can be effectively conducted through the 1 megohm current-limiting resistor and the elastic shielded wire. At the same time, the foolproof control structure can detect the wearing status and performance of the wristband in real time, avoiding the problem of "only alarming but not stopping the work". Only when wearing a qualified wristband can the lights and other equipment in the work area be allowed to start, preventing employees from circumventing the detection by cutting off power or cheating. This blocks the harm of static electricity from the source. In addition, the 1 megohm current-limiting resistor built into the electrostatic wristband body, together with the protective design of the foolproof control structure, can reduce the risk of electric shock and solve the defects of the lack of safety protection in the existing devices. 2. By setting up a control box, this application can not only provide installation and protection space for the foolproof control structure and ensure its stable operation, but also realize the "lights off when people leave" function through the foolproof control structure. When the employee removes the main body of the electrostatic wristband, the foolproof control structure detects the abnormality and can control the work lights to turn off in time, avoid energy waste, extend the service life of the lights, and effectively solve the problem of insufficient energy consumption control of the existing device. Attached Figure Description

[0014] Figure 1 This is an overall structural diagram of the electrostatic wristband with detection and synchronous control functions of this utility model. Figure 2 This is a structural diagram of the electrostatic wristband body and control box of this utility model; Figure 3 This is a structural diagram of the control box of this utility model; Figure 4 This is a structural diagram of the error-proof control structure of this utility model; Figure 5 This is a structural diagram of the cap of this utility model.

[0015] In the diagram, 1. Static cuff body; 101. Wristband; 102. Housing; 103. Receiving slot; 104. Conductive fiber layer; 105. Conductive buckle; 106. Wire connector; 107. Elastic shielded wire; 108. Cover; 2. Control box; 3. Foolproof control structure; 301. Control motherboard; 302. Microcontroller; 303. Voltage detection circuit; 304. Indicator light; 305. Lamp drive module; 306. Strong and weak current isolation module; 307. Power interface; 308. Cuff interface; 309. Lamp interface; 4. Clamping block; 5. Support base; 6. Delay adjustment knob. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] Please see Figure 1-5 The present invention provides the following technical solution: An electrostatic wristband with detection and synchronous control functions includes an electrostatic wristband body 1 and a control box 2, wherein the control box 2 is provided with a foolproof control structure 3. The main body 1 of the electrostatic bracelet includes a wristband 101, a housing 102 fixedly connected to the front side of the wristband 101, a receiving groove 103 opened on the front side of the housing 102, a conductive fiber layer 104 disposed inside the wristband 101, a conductive buckle 105 snapped into the rear side inside the receiving groove 103, the rear side of the conductive buckle 105 being tightly fitted to the front side of the conductive fiber layer 104, a wire connector 106 welded to the left side of the conductive buckle 105, a 1 megohm current-limiting resistor connected in series between the wire connector 106 and the conductive buckle 105, an elastic shielded wire 107 disposed on the left side of the housing 102, a plug at one end of the elastic shielded wire 107 being inserted into the inside of the wire connector 106, and a connector at the end of the elastic shielded wire 107 away from the wire connector 106 being inserted into the foolproof control structure 3, and a cover 108 snapped into the front side of the housing 102.

[0018] In this embodiment: by setting up an electrostatic bracelet body 1, a control box 2, and a foolproof control structure 3, the wristband 101 of the electrostatic bracelet body 1 is worn on the wrist. The wristband 101 is placed in the receiving groove 103 of the front housing 102 of the wristband 101, and the rear side of the conductive buckle 105 is tightly attached to the conductive fiber layer 104 inside the wristband 101, ensuring that the human body and the conductive buckle 105 form an effective electrical connection. Then, the plug of one end of the elastic shielded wire 107 is inserted into the wire connector 106 on the left side of the conductive buckle 105, and the other end of the connector is connected to the foolproof control structure inside the control box 2. The structure 3 is inserted, and then the cover 108 on the front side of the housing 102 is snapped in place to prevent the conductive buckle 105 and the wire connector 106 from being exposed and damaged. At the same time, the control box 2 provides a sealed protection for the internal foolproof control structure 3, isolating it from the influence of external dust and collisions. When the device is running, the static electricity generated by the human body is conducted through the wrist to the conductive fiber layer 104 on the inside of the wristband 101, and then enters the conductive path through the tightly fitted conductive buckle 105. It then passes in sequence through the 1 megohm current-limiting resistor connected in series with the conductive buckle 105, the wire connector 106, and the elastic screen. The shielded wire 107 ultimately transmits the signal to the foolproof control structure 3. The foolproof control structure 3 monitors the continuity and resistance of the conductive path in real time. If the path is detected to be continuous and the resistance is stable at around 1 megohm (i.e., the electrostatic wristband 1 is worn correctly), the work area lights and other equipment are allowed to be powered on and started. If the path is detected to be disconnected (the electrostatic wristband 1 is not worn) or the resistance is abnormal (the electrostatic wristband 1 is damaged), the power supply to the equipment is continuously cut off, completely avoiding the situation of "only alarming but not stopping the work". This eliminates the possibility of employees circumventing detection by cutting off the power or cheating, blocking the harm of electrostatic discharge from the source. At the same time, the 1 megohm current-limiting resistor can limit the electric shock current to a safe range when accidentally exposed to strong electricity. Combined with the protection logic of the foolproof control structure 3, the risk of electric shock is greatly reduced. When the employee removes the electrostatic wristband 1, the foolproof control structure 3 quickly detects that the conductive path is disconnected and immediately triggers the control command to cut off the power supply to the work lights, realizing "lights off when people leave". This avoids energy waste and extends the service life of the lights, comprehensively solving the problems of insufficient foolproofness, lack of safety and high energy consumption of existing devices.

[0019] Specifically, such as Figure 4 As shown, the foolproof control structure 3 includes a control motherboard 301 located inside the control box 2. A microcontroller 302 and a voltage detection circuit 303 are respectively located on the top of the control motherboard 301. An indicator light 304 is embedded in the front side of the control box 2. The indicator light 304 is electrically connected to the control motherboard 301. The indicator light 304 is divided into a green working light and a red alarm light.

[0020] Specifically, such as Figure 4 As shown, a lighting driver module 305 is provided on the top of the control motherboard 301. The lighting driver module 305 is electrically connected to the microcontroller 302. The lighting driver module 305 consists of a relay and a relay drive circuit.

[0021] Specifically, such as Figure 4 As shown, a strong and weak current isolation module 306 is provided on the top of the control motherboard 301. The strong and weak current isolation module 306 is electrically connected to the microcontroller 302. The strong and weak current isolation module 306 adopts an optocoupler. A power interface 307 is provided on the rear side of the control box 2. A leakage protection switch is connected in series between the power interface 307 and the lamp driver module 305. A wristband interface 308 and a lamp interface 309 are respectively provided on the left side of the control box 2. The wristband interface 308 is connected to the end of the elastic shielded wire 107 away from the wire connector 106. A lamp connection cable is soldered to the outside of the lamp interface 309.

[0022] In this embodiment: By setting a foolproof control structure 3, the end of the elastic shielded wire 107 away from the wire connector 106 is plugged into the wristband interface 308 on the left side of the control box 2. The power interface 307 on the rear side of the control box 2 is connected to an external power source. The leakage protection switch is connected in series between the power interface 307 and the lamp driver module 305 to form a complete circuit. When the device is running, the voltage detection circuit 303 collects the circuit signal at the wristband interface 308 in real time and transmits the data to the microcontroller 302 of the control motherboard 301. The microcontroller 302 determines whether the wristband is worn correctly through signal analysis. If the circuit is detected to be conducting and the resistance is stable (meeting the characteristics of a 1 megohm current-limiting resistor), the green working light of the control indicator 304 is lit. In case of abnormality, the indicator 304 turns green. A flashing red alarm light simultaneously sends a command to the lighting drive module 305 via the strong / weak current isolation module 306 (optocoupler), activating the relay drive circuit, closing the relay's normally open contacts, and energizing the lighting interface 309. The soldered lighting connection cable then connects to the work light, activating it. This prevents employees from unplugging the light and plugging it into other power outlets. If a circuit break or abnormal resistance is detected, the microcontroller 302 activates the red alarm light without triggering the lighting drive module 305, keeping the light powered off. Throughout the process, the strong / weak current isolation module 306 achieves electrical isolation between the low-voltage detection circuit and the 220V strong current drive circuit. The leakage protection switch quickly cuts off the power when leakage is detected, preventing cheating and ensuring electrical safety.

[0023] Specifically, such as Figure 5 As shown, a clamping block 4 is fixedly connected to the rear side of the cover 108, and the clamping block 4 is located on the front side of the conductive buckle 105.

[0024] Specifically, such as Figure 4 As shown, a support base 5 is provided on the bottom side inside the control box 2, and the top of the support base 5 is bolted to the bottom of the control motherboard 301.

[0025] In this embodiment: by setting the clamping block 4 and the support base 5, when assembling the cover 108, the cover 108 is snapped onto the front side of the housing 102, and the clamping block 4 on the rear side of the cover 108 is precisely pressed against the front side of the conductive buckle 105, so that the rear side of the conductive buckle 105 and the conductive fiber layer 104 inside the wristband 101 always remain in close contact, avoiding displacement and poor contact of the conductive buckle 105 due to shaking during wearing, and ensuring the stability of the electrostatic conduction path. At the same time, the support base 5 on the bottom side inside the control box 2 is bolted to fix the bottom of the control motherboard 301, providing a stable support for the control motherboard 301, preventing the control motherboard 301 from colliding with the inner wall of the control box 2 due to vibration during the handling or use of the control box 2, avoiding loosening or damage of components such as the microcontroller 302 and the voltage detection circuit 303, and ensuring the stability and reliability of the foolproof control structure 3.

[0026] Specifically, such as Figure 4 As shown, a delay adjustment knob 6 is provided on the front side of the top of the control motherboard 301, and the delay adjustment knob 6 is electrically connected to the microcontroller 302.

[0027] In this embodiment: By setting a delay adjustment knob 6, which is electrically connected to the microcontroller 302 of the control motherboard 301, the delay adjustment knob 6 can be adjusted in a preset program stage. According to the preset time (such as 1-10 seconds) of the delay adjustment knob 6, the power is de-energized to the lamp drive module 305. This design can prevent employees from adjusting the lights without authorization and ensure that the lights automatically turn off after the employees leave, taking into account both the convenience of operation and the energy-saving requirements, and further optimizing the practicality of the "lights off when people leave" function.

[0028] Working Principle: When using the electrostatic wristband with detection and synchronous control functions, the device is first assembled and debugged: The control box 2 is installed next to the workstation on a suitable bracket or wall. The bottom of the control main board 301 is bolted to the support base 5 inside the control box 2, ensuring the control main board 301 is stable and does not wobble. Next, the end of the elastic shielded wire 107 furthest from the wire connector 106 is plugged into the wristband interface 308 on the left side of the control box 2. The power interface 307 on the rear side of the control box 2 is connected to an external 220V power supply. At this time, the leakage protection switch connected in series between the power interface 307 and the lighting driver module 305 is in standby mode. Then, according to the operational requirements, the control box 2 is rotated... Adjust knob 7 to preset the delay time (e.g., 3 seconds) for the lights to turn off via delay adjuster 6. Then, the employee wears the main body 1 of the electrostatic wristband: The wristband 101 is placed on the wrist, so that the rear side of the conductive buckle 105 in the receiving groove 103 of the front housing 102 of the wristband 101 initially adheres to the conductive fiber layer 104 inside the wristband 101. Then, the cover 108 on the front side of the housing 102 is snapped in place. The clamping block 4 on the rear side of the cover 108 simultaneously presses against the front side of the conductive buckle 105, ensuring that the conductive buckle 105 and the conductive fiber layer 104 remain tightly fitted, preventing poor contact due to subsequent shaking during wear. Simultaneously, the cover 108 also prevents the conductive buckle 105 and the wire connector 106 from being exposed and damaged. When the device is in operation, the static electricity generated by the human body will... The signal is conducted through the wrist to the conductive fiber layer 104 inside the wristband 101, then through the tightly fitting conductive buckle 105 into the conductive path. It then passes sequentially through a 1-megohm current-limiting resistor connected in series with the buckle 105, a wire connector 106, and an elastic shielded wire 107, finally reaching the wristband interface 308 of the control box 2. The voltage detection circuit 303 on the control motherboard 301 collects the circuit signals at the wristband interface 308 in real time, transmitting data such as resistance value and on / off status to the microcontroller 302. The microcontroller 302 analyzes and judges the data: if it detects circuit continuity and the resistance value is stable at around 1 megohm (i.e., the electrostatic wristband body 1 is properly worn), it immediately controls the green working light on the front of the control box 2 to illuminate, while simultaneously isolating strong and weak currents. Module 306 (optocoupler) sends a conduction command to the lighting driver module 305. After the relay drive circuit is energized, the relay coil engages, the normally open contact of the relay closes, and the lighting interface 309 is energized. The soldered lighting connection cable connects to the work lighting fixture, and the lights in the work area are activated. This method prevents employees from unplugging the lighting fixtures and plugging them into other power outlets. If a circuit break is detected (due to not wearing the electrostatic wrist strap 1) or an abnormal resistance value is detected (due to damage to the electrostatic wrist strap 1), the microcontroller 302 controls the red alarm light on indicator 304 to illuminate and does not send a command to the lighting driver module 305. The relay remains open, and the lighting fixture remains unenergized. During operation, if a leakage occurs in the high-voltage circuit...A leakage current protection switch connected in series between the power interface 307 and the lighting driver module 305 quickly cuts off the power supply to avoid the risk of electric shock. When an employee needs to temporarily remove the wristband (e.g., for brief data recording), the microcontroller 302 detects the circuit break and does not immediately cut off the lighting power. Instead, it triggers the lighting driver module 305 to cut off power based on the preset time delay of the delay adjustment knob 6, resulting in the lighting automatically turning off after the delay, achieving "lights off when leaving." The entire process, through the coordinated operation of various structures, ensures effective electrostatic protection, prevents cheating, and simultaneously guarantees electrical safety and energy conservation, comprehensively addressing the shortcomings of existing devices.

[0029] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An electrostatic wrist strap with detection and synchronous control functions, comprising an electrostatic wrist strap body (1) and a control box (2), characterized in that: The control box (2) is equipped with a foolproof control structure (3) inside; The electrostatic bracelet body (1) includes a wristband (101), a housing (102) is fixedly connected to the front side of the wristband (101), a receiving groove (103) is provided on the front side of the housing (102), a conductive fiber layer (104) is provided inside the wristband (101), a conductive buckle (105) is snapped into the rear side inside the receiving groove (103), the rear side of the conductive buckle (105) is tightly fitted to the front side of the conductive fiber layer (104), and the left side of the conductive buckle (105) is welded. There is a wire connector (106), and a 1 megohm current-limiting resistor is connected in series between the wire connector (106) and the conductive buckle (105). An elastic shielded wire (107) is provided on the left side of the housing (102). The plug of one end of the elastic shielded wire (107) is inserted into the inside of the wire connector (106). The end of the elastic shielded wire (107) away from the wire connector (106) is connected to the foolproof control structure (3). A cover (108) is snapped onto the front side of the housing (102).

2. The electrostatic wristband with detection and synchronous control function according to claim 1, characterized in that: The foolproof control structure (3) includes a control motherboard (301) located inside the control box (2). The top of the control motherboard (301) is provided with a microcontroller (302) and a voltage detection circuit (303). An indicator light (304) is embedded in the front side of the control box (2). The indicator light (304) is electrically connected to the control motherboard (301). The indicator light (304) is divided into a green working light and a red alarm light.

3. The electrostatic wristband with detection and synchronous control function according to claim 2, characterized in that: The top of the control motherboard (301) is provided with a lamp driving module (305), which is electrically connected to the microcontroller (302). The lamp driving module (305) is composed of a relay and a relay driving circuit.

4. The electrostatic wristband with detection and synchronous control function according to claim 2, characterized in that: The top of the control motherboard (301) is provided with a strong and weak current isolation module (306), which is electrically connected to the microcontroller (302). The strong and weak current isolation module (306) adopts an optocoupler. The rear side of the control box (2) is provided with a power interface (307). A leakage protection switch is connected in series between the power interface (307) and the lamp drive module (305). The left side of the control box (2) is provided with a wristband interface (308) and a lamp interface (309). The wristband interface (308) is connected to the end of the elastic shielded wire (107) away from the wire connector (106). A lamp connection cable is soldered to the outside of the lamp interface (309).

5. An electrostatic wristband with detection and synchronous control functions according to claim 1, characterized in that: A clamping block (4) is fixedly connected to the rear side of the cover (108), and the clamping block (4) is located on the front side of the conductive buckle (105).

6. The electrostatic wristband with detection and synchronous control function according to claim 1, characterized in that: The bottom side of the control box (2) is provided with a support base (5), and the top of the support base (5) is bolted to the bottom of the control motherboard (301).

7. An electrostatic wristband with detection and synchronous control functions according to claim 2, characterized in that: The front side of the top of the control motherboard (301) is provided with a delay adjustment knob (6), which is electrically connected to the microcontroller (302).

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