CN112557756A - Fool-proof device for ESD (electro-static discharge) monitor - Google Patents
Fool-proof device for ESD (electro-static discharge) monitor Download PDFInfo
- Publication number
- CN112557756A CN112557756A CN202011601692.7A CN202011601692A CN112557756A CN 112557756 A CN112557756 A CN 112557756A CN 202011601692 A CN202011601692 A CN 202011601692A CN 112557756 A CN112557756 A CN 112557756A
- Authority
- CN
- China
- Prior art keywords
- esd
- seat surface
- seat
- fool
- microswitch
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R27/00—Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom
- G01R27/02—Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/02—Operating parts, i.e. for operating driving mechanism by a mechanical force external to the switch
- H01H3/14—Operating parts, i.e. for operating driving mechanism by a mechanical force external to the switch adapted for operation by a part of the human body other than the hand, e.g. by foot
- H01H3/141—Cushion or mat switches
Abstract
The invention discloses a fool-proof device for an ESD (electro-static discharge) monitor, which comprises: seat base, seat face, micro-gap switch, spring, ESD monitor, alarm device, spacing screw. Through the mode, the fool-proof device for the ESD monitor is provided with the micro switch for controlling the ESD monitor, and a person can automatically trigger the ESD monitor when sitting down, so that the fool-proof device is easy to realize and low in cost.
Description
Technical Field
The invention relates to the field of electronic test and measurement, in particular to a fool-proof device for an ESD (electro-static discharge) monitor.
Background
At present, production enterprises of circuit boards can use the ESD monitoring instrument, the ESD monitoring instrument can detect the resistance value of a connecting equipment loop, the connecting equipment and the ground form the equipotential through the effective connection of the grounding clamp body, the grounding clamp cable, the grounding cable and the grounding pile, static electricity is led into the ground, and the resistance of the equipment static grounding loop meets the national safety standard. And static electricity attached to the human body, which is generated by mutual friction of clothes and the like on the human body, can also damage the product of people, bring hidden quality troubles to the product, and even cause property loss of companies. Therefore, the ESD monitoring instrument can be installed on the workstation contacted with the circuit board, before the contact between an operator and the circuit board, the electrostatic bracelet needs to be worn firstly, the switch of the ESD monitoring instrument is opened, the ESD of the human body is eliminated and detected, and the circuit board can be contacted.
However, in practical use, when an operator sits on a work post, the operator often forgets to take the electrostatic ring or does not turn on the switch of the ESD monitor, so that the circuit board product is damaged by the static electricity of the human body.
Disclosure of Invention
The invention mainly solves the technical problem of providing the fool-proof device for the ESD monitor, has the advantages of high reliability, accurate positioning, compact structure and the like, and has wide market prospect in the application and popularization of electronic test and measurement.
In order to solve the technical problems, the invention adopts a technical scheme that:
a fool-proofing device for an ESD monitor is provided, which comprises: a seat base, a seat surface, a microswitch, a spring, an ESD monitor, an alarm device and a limit screw,
the connecting side of the seat surface is detachably connected with the top surface of the seat base, the bottom surface of the movable side of the seat surface is connected with the spring, the lower part of the spring is connected with the seat base, and the movable side of the seat surface is connected with the seat base through a limit screw, so that the seat surface floats up and down under the limit of the limit screw on the seat base,
the microswitch is arranged on the seat base, and the top end of the swing rod of the microswitch is in contact with the bottom surface of the seat surface. The COM end and the normally open end of the microswitch are respectively connected to two ends of the ESD monitor switch, so that the microswitch and the ESD monitor switch are connected in parallel,
when an operator sits on the seat surface, the seat surface is pressed downwards, so that the COM end and the normally open end of the microswitch are closed, the alarm device is triggered, the ESD monitoring instrument is automatically opened, and the operator is reminded to wear the electrostatic bracelet; when no operator sits on the seat surface, the seat surface bounces upwards under the action of the spring, and the microswitch is in an open circuit state.
In a preferred embodiment of the invention, a plurality of said springs are uniformly attached to a seat surface.
In a preferred embodiment of the present invention, a plurality of limit screws are uniformly connected to one seat surface.
In a preferred embodiment of the invention, the connecting side of the seat surface is rotatably connected to the top surface of the seat base.
In a preferred embodiment of the invention, the lower portion of the spring is disposed in a detent on the seat base.
In a preferred embodiment of the invention, the alarm device comprises an audio alarm device and a light alarm device.
The invention has the beneficial effects that: a microswitch is added to control the ESD monitoring instrument, so that the ESD monitoring instrument is automatically triggered when people sit down, the realization is easy, and the cost is low.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without inventive efforts, wherein:
fig. 1 is a schematic structural diagram of a fool-proof device for an ESD monitor according to a preferred embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, an embodiment of the present invention includes:
a fool-proof device for an ESD monitor, the structure of which comprises: seat base 1, seat face 2, micro-gap switch 3, spring 4, ESD monitor 5, alarm device, spacing screw 6.
The connecting side of the seat surface is rotatably connected with the top surface of the seat base, the bottom surface of the movable side of the seat surface is connected with the spring, the lower part of the spring is arranged in the positioning groove on the seat base, and the movable side of the seat surface is connected with the seat base through a limiting screw, so that the seat surface can slightly float up and down under the limitation of the limiting screw on the seat base.
Wherein, a plurality of springs and limit screws are evenly connected on one seat surface.
The microswitch is arranged on the seat base, and the top end of a swing rod 7 of the microswitch is in contact with the bottom surface of the seat surface. The COM end and the normally open end of the microswitch are respectively connected to two ends of a switch of the ESD monitor, so that the microswitch and the switch of the ESD monitor are connected in parallel.
When an operator sits on the seat surface, the seat surface is pressed downwards, so that the COM end and the normally open end of the microswitch are closed, the alarm device is triggered, the ESD monitoring instrument is automatically opened, and the operator is reminded to wear the electrostatic bracelet; when no operator sits on the seat surface, the seat surface bounces upwards under the action of the spring, and the microswitch is in an open circuit state.
The fool-proof device for the ESD monitor has the advantages that:
a. the seat is redesigned, and the micro switch is added to control the ESD monitor, so that the realization is easy and the cost is low;
b. the ESD monitoring instrument is manually opened by a person, and is automatically triggered when the person sits down, so that the operation is simple and easy;
c. the damage of human static electricity to electronic products caused by forgetting to charge the static bracelet by an operator is reduced.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by the present specification, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (6)
1. A fool-proof device for an ESD monitor, comprising: a seat base, a seat surface, a microswitch, a spring, an ESD monitor, an alarm device and a limit screw,
the connecting side of the seat surface is detachably connected with the top surface of the seat base, the bottom surface of the movable side of the seat surface is connected with the spring, the lower part of the spring is connected with the seat base, and the movable side of the seat surface is connected with the seat base through a limit screw, so that the seat surface floats up and down under the limit of the limit screw on the seat base,
the microswitch is arranged on the seat base, the top end of the swing rod of the microswitch is contacted with the bottom surface of the seat surface,
the COM end and the normally open end of the microswitch are respectively connected to two ends of the ESD monitor switch, so that the microswitch and the ESD monitor switch are connected in parallel,
when an operator sits on the seat surface, the seat surface is pressed downwards, so that the COM end and the normally open end of the microswitch are closed, the alarm device is triggered, and the ESD monitoring instrument is automatically turned on to remind the operator to wear the electrostatic bracelet; when no operator sits on the seat surface, the seat surface bounces upwards under the action of the spring, and the microswitch is in an open circuit state.
2. The fool-proofing device for an ESD monitor according to claim 1, wherein a plurality of said springs are uniformly connected to a seat surface.
3. The fool-proofing device for the ESD monitor according to claim 1, wherein a plurality of limit screws are evenly connected to a seat surface.
4. The fool-proofing device for an ESD monitor according to claim 1, characterized in that the connection side of the seat surface is rotatably connected with the top surface of the seat base.
5. The fool-proofing device for an ESD monitor according to claim 1, characterized in that the lower part of the spring is disposed in a positioning groove on the seat base.
6. The fool-proofing device for the ESD monitor according to claim 1, wherein the alarm device comprises an audible alarm device and a light alarm device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011601692.7A CN112557756A (en) | 2020-12-30 | 2020-12-30 | Fool-proof device for ESD (electro-static discharge) monitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011601692.7A CN112557756A (en) | 2020-12-30 | 2020-12-30 | Fool-proof device for ESD (electro-static discharge) monitor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112557756A true CN112557756A (en) | 2021-03-26 |
Family
ID=75032914
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011601692.7A Pending CN112557756A (en) | 2020-12-30 | 2020-12-30 | Fool-proof device for ESD (electro-static discharge) monitor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112557756A (en) |
-
2020
- 2020-12-30 CN CN202011601692.7A patent/CN112557756A/en active Pending
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