CN220156698U

CN220156698U - Antistatic wrist strap monitoring intelligent joint control power supply box

Info

Publication number: CN220156698U
Application number: CN202320750509.2U
Authority: CN
Inventors: 薛海东; 邓翔; 王富; 王鸿兵
Original assignee: Youli Automation Technology Shanghai Co ltd
Current assignee: Youli Automation Technology Shanghai Co ltd
Priority date: 2023-04-04
Filing date: 2023-04-04
Publication date: 2023-12-08
Anticipated expiration: 2033-04-04

Abstract

The utility model discloses an anti-static wrist strap monitoring intelligent combined control power supply box which comprises a shell, wherein an electrostatic monitoring alarm and delay circuit is arranged in the shell, and a four-in-one power supply input part with a lamp, a fuse, a switch and an AC socket, a power supply output socket, an electrostatic wrist strap jack, a buzzer, an indicator light, a display screen, an electrostatic grounding crocodile clip and a three-head delta-tail power line are also arranged on the shell. The four-in-one power input part with the lamp, the fuse, the switch and the AC socket, the power output socket, the electrostatic wrist strap jack, the buzzer, the indicator lamp, the display, the electrostatic grounding crocodile clip are electrically connected with the electrostatic monitoring alarm and the delay circuit. On the one hand, the utility model can prevent operators from wearing the antistatic wrist strap or wearing incorrectly and the wrist strap from being invalid, thereby preventing the quality problem caused by the subsequent static electricity. On the other hand, the energy sources are saved and the service life of the equipment is prolonged.

Description

Antistatic wrist strap monitoring intelligent joint control power supply box

Technical Field

The utility model relates to an antistatic device, in particular to an antistatic wrist strap monitoring intelligent combined control power supply box.

Background

China has become an important production and processing base of electronic products in the world, and numerous electronic product processing enterprises are concentrated in bead triangles and long triangles. At present, most of the ESD control works of enterprises are not strictly established according to the ESD 20.20 standard, and the ESD control works of factories are not simple ESD articles such as anti-static work clothes and wrist bands, so that a great gap is reserved between the ESD 20.20 standard. In fact, the electronic industry has long been concerned about static electricity, and research on static electricity and static electricity protection has gradually evolved into a new edge discipline, forming modern static electricity engineering and static electricity protection engineering, and the static electricity electrification principle, static electricity discharge model, static electricity action mechanism, static electricity hazard and protection thereof and static electricity test technology related to the static electricity are rapidly developed. At present, one of the modes adopted by ESD antistatic control in the electronic industry is that operators wear antistatic wrist bands to prevent static from damaging electronic components, although the ESD antistatic wrist bands are widely used in electronic factories, the antistatic wrist bands need to be monitored manually, and the situation that the ESD antistatic protection is not emphasized still exists from a manager to a workbench operator in China, the operation is carried out without wearing the wrist bands or the situation that the operators forget to carry the wrist bands occurs, so that the electronic components are broken down by static electricity, and quality accidents and customer complaints are caused. When the working personnel of the workbench leave, equipment such as an illuminating lamp, an ion fan, an electric soldering iron and the like of the workbench are always in an electrified working state, so that energy waste and equipment service life are shortened. The socket of the workbench generally does not meet the standard requirements of the switch and the fuse, and has great potential electrical safety hazards.

Chinese patent CN202021924464 discloses a foolproof wrist strap antistatic device. In the technical scheme, when no wrist strap is connected, the socket does not supply electricity to the electric equipment. When the wrist strap is connected, the socket only has electricity to supply to the electric equipment. The utility model has no indicator light, buzzer and delay function. When the wrist strap is slightly in bad contact, the power is immediately cut off, and the practicality and humanization have the defects.

Disclosure of Invention

Aiming at the defects existing in the prior art, the utility model aims to provide an anti-static wrist strap monitoring intelligent joint control power supply box, which solves the problem that the electronic industry intelligently joint controls the use condition of the anti-static wrist strap of a static sensitive station and electric equipment on a workbench.

In order to achieve the above object, the present utility model is realized by the following technical scheme: the utility model provides an antistatic wrist area monitoring intelligence allies oneself with accuse power pack, includes the casing, casing internally mounted has static monitoring warning and time delay circuit, the casing on still be equipped with take lamp, take fuse, take four unification power input parts of switch and AC socket, power output socket, static wrist area jack, bee calling organ, pilot lamp, display screen, static ground connection crocodile clamp and three article word tail power cord. The four-in-one power input part with the lamp, the fuse, the switch and the AC socket, the power output socket, the electrostatic wrist strap jack, the buzzer, the indicator lamp, the display screen and the electrostatic grounding crocodile clip are electrically connected with the electrostatic monitoring alarm and the delay circuit.

Preferably, the four-in-one power input part with the lamp, the fuse, the switch and the AC socket is a single-phase 220-volt alternating current power input interface. One end three-phase plug of the three-head delta-tail power line is connected with a single-phase 220VAC, and the other end delta-tail is connected with a four-in-one power input part with a lamp, a fuse, a switch and an AC socket.

Preferably, the power output socket is a single-phase 220v ac power output interface. Is connected with electric equipment on a workbench of an operator.

Preferably, the four-in-one power input part with the lamp, the fuse, the switch and the AC socket is arranged on the side wall of the shell.

Preferably, the power output socket is arranged at the top of the shell.

Preferably, the front of the shell is provided with an electrostatic wrist strap jack, an indicator light and a display screen.

Preferably, the indicator light has three monitoring states of green long bright, red flashing and blue long bright.

Preferably, the electrostatic monitoring alarm and the delay circuit are electrically connected with the electrostatic wrist strap jack, the buzzer and the indicator lamp, and the buzzer and the indicator lamp are logically controlled.

Preferably, the static monitoring alarm and the delay circuit are provided with delay time adjustment and logic control on an output relay loop.

Preferably, the housing is a rectangular parallelepiped housing.

The utility model has the following beneficial effects:

1. the anti-static wrist strap is not worn by operators or is not worn correctly and the wrist strap is invalid, so that quality problems caused by subsequent static electricity are prevented.

2. When working personnel of the workbench leave, equipment such as an illuminating lamp, an ion fan, an electric soldering iron and the like of the workbench are automatically powered off for a period of time in a delayed manner, so that energy sources are saved, and the service life of the equipment is prolonged.

Drawings

The utility model is described in detail below with reference to the drawings and the detailed description;

FIG. 1 is a schematic structural diagram of embodiment 1 of the present utility model;

FIG. 2 is an internal top view of embodiment 1 of the present utility model;

FIG. 3 is a schematic structural diagram of embodiment 2 of the present utility model;

FIG. 4 is an internal top view of embodiment 2 of the present utility model;

FIG. 5 is a schematic circuit diagram of the present utility model;

fig. 6 is a circuit diagram of the present utility model.

Detailed Description

The utility model is further described in connection with the following detailed description, in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the utility model easy to understand.

Example 1: referring to fig. 1-2, the present embodiment adopts the following technical scheme: the utility model provides an antistatic wrist area monitoring intelligence allies oneself with accuse power pack, includes casing 1, casing 1 internally mounted has static monitoring warning and delay circuit 2, casing 1 on still be equipped with take lamp, take fuse, take switch and AC socket's trinity power input part 3, power output socket 4, static wrist area jack 5, buzzer 6, pilot lamp 7, display screen 8, electrostatic ground connection crocodile clamp 9 and three article end of a character power cord 10. The four-in-one power input part 3 with a lamp, a fuse, a switch and an AC socket, the power output socket 4, the electrostatic wrist strap jack 5, the buzzer 6, the indicator lamp 7, the display screen 8 and the electrostatic grounding crocodile clip 9 are electrically connected with the electrostatic monitoring alarm and the delay circuit 2.

It is noted that the four-in-one power input part 3 with lamp, fuse, switch and AC socket is a single-phase 220V AC power input interface. One end three-phase plug of the three-head delta-tail power line 10 is connected with a single-phase 220VAC, and the other end delta-tail is connected with a four-in-one power input part 3 with a lamp, a fuse, a switch and an AC socket. The power output socket 4 is a single-phase 220V alternating current power output interface. Is connected with electric equipment on a workbench of an operator. The four-in-one power input part 3 with the lamp, the fuse, the switch and the AC socket is arranged on the side wall of the shell 1. The power output socket 4 is arranged at the top of the shell 1. The front of the shell 1 is provided with an electrostatic wrist strap jack 5, an indicator lamp 7 and a display screen 8.

It should be noted that the indicator lamp 7 indicates the monitoring state by three states:

(1) green long and bright indicates that the rubber head of the wrist strap is inserted into the electrostatic wrist strap jack 5, the electrostatic grounding crocodile clip 9 is well grounded, the wrist strap of the wearing bracelet is well worn and the operator is well contacted with the electrostatic floor.

(2) The red flash indicates that the rubber head of the wrist strap is inserted into the electrostatic wrist strap jack 5, the grounding state of the electrostatic grounding crocodile clip 9 is not good, or the wrist strap of the wrist strap is not good when the wrist strap is worn (the wrist strap of the wrist strap is not worn by an operator or is loosened, broken and the like), or the contact of the operator with the electrostatic floor is not good.

(3) The blue color is long and bright, indicating that the wrist strap rubber head is not inserted into the electrostatic wrist strap insertion hole 5.

It is noted that the electrostatic monitoring alarm and delay circuit 2 is electrically connected with the electrostatic wrist strap jack 5, the buzzer 6 and the indicator lamp 7, and performs logic control on the buzzer 6 and the indicator lamp 7. The anti-static wrist strap monitoring intelligent joint control power supply box detects the relative impedance between the skin of an operator and the ground through a rope single-loop or double-loop wrist strap, when the operator wears an electrostatic wrist to be irregular or the electrostatic wrist is out of order and the ground resistance value of a human body contact electrostatic floor (actually the voltage dividing resistance of a circuit) is larger than a set threshold value, an alarm signal is immediately output through an electrostatic monitoring alarm and comparison of a voltage comparator in the delay circuit 2 with a reference voltage, an indicator lamp 7 flashes in red, a buzzer sounds, and meanwhile, the alarm signal is used as a control signal to control the electrostatic monitoring alarm and relay output contact in the delay circuit 2 to delay for a period of time (the time is adjustable) to be placed in a closed loop state when the ground is normal, the relay output contact is in an open state when the ground is abnormal, the power supply output socket 4 does not supply power, the electric equipment is not powered, and the electric equipment is prevented from operating under the condition of preventing the anti-static invalidation. When the static wrist is worn correctly and the human body grounding resistance value is smaller than the set threshold value, the static monitoring alarm and delay circuit 2 compares the internal voltage comparator with the reference voltage, outputs a normal working signal, the indicator lamp 7 is green and bright, the buzzer does not sound, controls the relay output contact to be in a connection state, the power output socket 4 supplies power, allows equipment used by operators to be powered on, and achieves the aims of static prevention and energy saving in technical means. The wrist band banana head is not inserted into the wrist band jack 5 for electrostatic monitoring and alarming, the delay circuit 2 does not monitor an insertion signal, the indicator lamp 7 is blue and bright, the buzzer does not sound, the output contact of the control relay is delayed for a period of time (the time is adjustable) to be placed in an off state, and the power output socket 4 is not powered.

It is noted that the electrostatic monitoring alarm and delay circuit 2 has delay time adjustment and logic control for the output relay loop. The time range is adjustable from 0.01 second to 999 minutes. One to three groups of output relays can be respectively logically controlled.

It is noted that the housing 1 is a rectangular parallelepiped housing. The length is between 100mm and 250mm, the height is between 50mm and 120mm, and the depth is between 50mm and 100 mm.

The working principle of the specific embodiment is as follows: firstly, a single-phase alternating current 220V power supply is connected, a four-in-one power input part 3 switch with a lamp, a fuse, a switch and an AC socket is turned on, the anti-static wrist strap monitoring intelligent combined control power box detects the relative impedance between the skin of an operator and the ground through a rope wrist strap, when the operator wears an electrostatic wrist to be irregular or the electrostatic wrist has a problem and the ground resistance value (actually the voltage dividing resistance of a circuit) of a human body contact electrostatic floor is larger than a set threshold value, an alarm signal is immediately output through an electrostatic monitoring alarm and a voltage comparator in a delay circuit 2 and is compared with a reference voltage, meanwhile, the alarm signal is controlled as a control signal to control the electrostatic monitoring alarm and the delay time (the time is adjustable) of a relay output contact in the delay circuit 2 to be in an off (when the grounding is normal, the relay output contact is in a closed loop state, and the relay output contact is in an off state when the grounding is abnormal), the power output socket 4 is not powered, the power consumption equipment is not powered, and the relay is not powered, and the operation is prevented under the condition of preventing static electricity. When the static wrist is worn correctly and the human body grounding resistance value is smaller than the set threshold value, the internal voltage comparator of the static monitoring alarm and delay circuit 2 is compared with the reference voltage to output a normal working signal, the output contact of the control relay is in a switch-on state, the power output socket 4 supplies power, equipment used by operators is allowed to be powered on, and the aims of static prevention and energy saving are achieved in technical means.

When the single-loop electrostatic wrist strap is inserted, an operator steps on the electrostatic floor, transmits the electrostatic floor to the wrist of a human body through a loop of the human body, and then forms an electric loop through the single-loop electrostatic wrist strap, a wire, an electrostatic monitoring alarm and a delay circuit 2 so as to judge the electrostatic grounding state.

Example 2: referring to fig. 3-4, when the dual-loop electrostatic wrist strap is inserted, one path of the electrostatic wrist strap is stepped on the electrostatic floor by an operator, is transmitted to the wrist of a human body through a loop of the human body, and forms an electrical loop with the electrostatic monitoring alarm and delay circuit 2 through one path and a wire of the dual-loop electrostatic wrist strap, so as to judge the electrostatic grounding state. The other path of the static wrist strap is stepped on the static floor by an operator, is transmitted to the wrist of a human body through a loop of the human body, and is directly and electrically connected with the ground of the static monitoring alarm and delay circuit 2 through the other path and the lead of the double-loop static wrist strap, so that when a wrist strap wearer is unaware, even if one loop fails, the other loop can still work, and the probability of electrostatic breakdown of an insulating layer of an electronic element is reduced.

The traditional electrostatic monitoring instrument has only a single electrostatic monitoring function, and the intelligent combined control power box for ESD anti-electrostatic monitoring has the functions of electrostatic monitoring, alarming, power supply of electric equipment of a workbench, delayed power failure and the like, and has the characteristics of high safety and reliability, energy conservation and environmental protection; the automatic delay and disconnection device can not only monitor the correct wearing of the wrist strap by the working personnel of the workbench, but also automatically delay and disconnect the electric equipment after the monitoring personnel leave, thereby avoiding the energy waste and shortening the service life of the equipment, reducing the production cost and realizing the economic benefit and lean quality management for enterprises of electronic factories.

The present embodiment prompts the operator of the current use state through sound/light. The time of the delayed power down may be set. Novel appearance, small, portable installation design, convenient and fast installation of user.

The foregoing has shown and described the basic principles and main features of the present utility model and the advantages of the present utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. The intelligent integrated control power supply box for the anti-static wrist strap monitoring comprises a shell (1), wherein an electrostatic monitoring alarm and delay circuit (2) is arranged in the shell (1), and is characterized in that a four-in-one power supply input part (3) with a lamp, a fuse, a switch and an AC socket, a power supply output socket (4), an electrostatic wrist strap jack (5), a buzzer (6), an indicator lamp (7), a display screen (8), an electrostatic grounding crocodile clip (9) and a three-head delta-tail power supply wire (10) are further arranged on the shell (1); the four-in-one power input part (3) with the lamp, the fuse, the switch and the AC socket, the power output socket (4), the electrostatic wrist strap jack (5), the buzzer (6), the indicator lamp (7), the display screen (8) and the electrostatic grounding crocodile clip (9) are electrically connected with the electrostatic monitoring alarm and delay circuit (2).

2. The intelligent integrated control power supply box for monitoring the antistatic wrist strap according to claim 1 is characterized in that the four-in-one power supply input part (3) with a lamp, a fuse, a switch and an AC socket is a single-phase 220-volt alternating current power supply input interface; one end three-phase plug of the three-head delta-tail power line (10) is connected with a single-phase 220VAC, and the other end delta-tail is connected with a four-in-one power input part (3) with a lamp, a fuse, a switch and an AC socket.

3. The intelligent integrated control power supply box for monitoring the antistatic wrist strap according to claim 1, wherein the power supply output socket (4) is a single-phase 220-volt alternating current power supply output interface; is connected with electric equipment on a workbench of an operator.

4. The intelligent integrated control power supply box for monitoring the antistatic wrist strap according to claim 1 is characterized in that the four-in-one power supply input part (3) with a lamp, a fuse, a switch and an AC socket is arranged on the side wall of the shell (1).

5. The intelligent integrated control power supply box for monitoring the antistatic wrist strap according to claim 1 is characterized in that the power output socket (4) is arranged at the top of the shell (1).

6. The intelligent integrated control power supply box for monitoring the antistatic wrist strap according to claim 1 is characterized in that an antistatic wrist strap jack (5), an indicator lamp (7) and a display screen (8) are arranged on the front surface of the shell (1).

7. The intelligent integrated control power supply box for monitoring the antistatic wrist strap according to claim 1, wherein the indicator lamp (7) has three monitoring states of green long bright, red flickering and blue long bright.

8. The intelligent integrated control power supply box for the anti-static wrist strap monitoring according to claim 1 is characterized in that the static monitoring alarm and delay circuit (2) is electrically connected with the static wrist strap jack (5), the buzzer (6) and the indicator lamp (7), and the buzzer (6) and the indicator lamp (7) are logically controlled.

9. The intelligent integrated control power supply box for monitoring the antistatic wrist strap according to claim 1, wherein the antistatic monitoring alarm and delay circuit (2) is provided with delay time adjustment and logic control for an output relay loop.

10. The intelligent integrated control power supply box for monitoring the antistatic wrist strap according to claim 1, wherein the shell (1) is a cuboid shell.