CN210733679U

CN210733679U - Electronic eraser with skin contact protection function

Info

Publication number: CN210733679U
Application number: CN201921533659.8U
Authority: CN
Inventors: 杨洪义
Original assignee: Shenzhen Brisk Technology Co ltd
Current assignee: Shenzhen Brisk Technology Co ltd
Priority date: 2019-09-16
Filing date: 2019-09-16
Publication date: 2020-06-12
Anticipated expiration: 2029-09-16

Abstract

The electronic eraser with the skin contact protection function comprises a shell, a circuit control part, a battery, a switch key and a heating head, and is characterized in that the circuit control part and the battery are arranged in the shell, the switch key and the heating head are electrically connected with the circuit control part, a skin contact electrode is arranged on the heating head of the shell, and the skin contact electrode is in signal connection with the circuit control part. The utility model relates to an electronic eraser with skin contact protect function, the high temperature through the heat production of heating hair erases the writing trace of the printing ink that discolours, is equipped with skin contact electrode at the heating head in addition, and this electrode contacts skin and immediately triggers outage signal, and the chip can be interrupted immediately and generate heat, and rapid lowering temperature avoids the high temperature to cause the injury to skin. The potential safety hazard of high-temperature scald is reduced, and the use safety is improved.

Description

Electronic eraser with skin contact protection function

[ technical field ] A method for producing a semiconductor device

The utility model relates to an article for daily use especially relates to a small-size electronization stationery product.

[ background of the invention ]

The electronic eraser is produced in association with the temperature-change decoloring ink in the temperature-change ink.

Temperature-sensitive inks are also known as thermochromic inks, thermal-sensitive inks or temperature-indicating inks. Can be divided into three main categories:

firstly, a certain specific color is displayed at normal temperature, the color disappears and becomes colorless after heating, and the original color is immediately recovered after cooling, and the reversible temperature-change decoloring ink is called as reversible temperature-change decoloring ink because the change process is reversible.

And secondly, the ink is colorless at normal temperature, changes into another color after being heated, and returns to the original colorless after being cooled, and is called as reversible temperature-change color-developing ink because the change process is reversible.

And thirdly, the ink displays color at normal temperature, changes into another color after being heated, and is called as reversible temperature-change color-change ink due to the reversible change process.

Among the "reversible temperature-change decoloring inks", there is a newly developed ink whose characteristics are: and (3) performing writing color development at normal temperature, decoloring after meeting high temperature (60-150 ℃), not performing color development after recovering the normal temperature, and performing color development again only after meeting low temperature of-15 ℃.

The ball-point pen refill adopting the thermal blanking ink can directly replace the traditional ball-point pen refill, has completely the same use habit, and has the advantages of utilizing the thermal blanking characteristic of the ink and correcting writing errors conveniently and quickly. The method is particularly suitable for occasions where students often need to modify handwriting, such as making questions and answer papers, sketching, drawing sketches by sketches, and the like. Can achieve the correction of no toxicity, no residue, no damage to paper, cleanness, thoroughness and high efficiency.

The electronic eraser needs to erase heat to eliminate hidden ink by a high-temperature heating principle, so a heating element needs to be configured, and the heating element can generate a high temperature of 60-150 ℃ to meet the technical requirement of quickly and efficiently erasing handwriting. However, if the high temperature heating element is inadvertently contacted with the skin of the human body, scald will be caused. This is particularly dangerous because high temperatures, even when touched slightly, can burn the skin, especially if the main group of erasers are students, which can result in serious consequences from careless use or pranks.

[ summary of the invention ]

The utility model relates to an electron eraser with skin contact protect function can respond to and contact skin to feed back circuit control part, stop generating heat and avoid by the condition of high temperature scald, improved the security and the convenience of electron eraser.

The utility model relates to an electron eraser with skin contact protect function, including shell, circuit control part, battery, switch button and heating head, its characterized in that, circuit control part and battery setting are in the shell, and switch button and heating head and circuit control part electric connection are equipped with skin contact electrode at the heating head of shell, this skin contact electrode and circuit control part signal connection.

The front end of the shell is provided with a heating head in a conical arc shape, and the outer surface of the heating head is provided with a skin contact electrode.

The heating head is made of heat-conducting insulating material, and the skin contact electrode is made of electroplating coating material with electric conductivity.

A heating body is closely arranged in the heating head, the heating body comprises a heating wire and a ceramic heat transfer body, and the heating wire is wound on the ceramic heat transfer body to form the heating body.

The tail end of the shell is provided with a USB interface which is connected with the circuit control part circuit.

The circuit control part comprises a USB interface module and a control IC, wherein the USB interface module comprises a first pin, a second pin, a third pin and a fourth pin, and the control IC comprises 8 pins which are respectively a first IC pin, a second IC pin, a third IC pin and an eighth IC pin; the first pin is connected with the first IC pin, the fourth pin is grounded, and the second IC pin is grounded after the first LED and the first resistor (R2) are connected in series; the fourth IC pin is connected with the switch key (S1) and then grounded; and the fifth IC pin is grounded; after the Battery (BAT) is connected with the first capacitor (C1) in parallel, one end of the Battery (BAT) is connected with the sixth IC pin, and the other end of the Battery (BAT) is grounded; the seventh IC pin is connected with a skin contact electrode (T1); the eighth IC pin is connected to the heater (H1) and then grounded.

The utility model relates to an electronic eraser with skin contact protect function, the high temperature through the heat production of heating hair erases the writing trace of the printing ink that discolours, is equipped with skin contact electrode at the heating head in addition, and this electrode contacts skin and immediately triggers outage signal, and the chip can be interrupted immediately and generate heat, and rapid lowering temperature avoids the high temperature to cause the injury to skin. The potential safety hazard of high-temperature scald is reduced, and the use safety is improved.

[ description of the drawings ]

FIG. 1 is a schematic structural view of an electronic eraser with skin contact protection function according to the present invention;

FIG. 2 is a structural diagram of the inside of the electronic eraser with skin contact protection function according to the present invention;

FIG. 3 is a top view of the electronic eraser with skin contact protection function according to the present invention;

FIG. 4 is a schematic diagram of an electronic eraser circuit with skin contact protection function according to the present invention;

10. a housing; 11. a USB interface; 20. a circuit control section; 30. a battery; 40. switching a key; 50. a heating head; 51. a skin contact electrode; 60. a heating element; 61. a heater; 62. a ceramic heat transfer body;

[ detailed description ] embodiments

The electronic eraser with skin contact protection function according to the present invention will be described in further detail with reference to the accompanying drawings and embodiments.

Referring to fig. 1, the electronic eraser with skin contact protection function is shown, which comprises a casing 10, a circuit control part 20, a battery 30, a switch button 40 and a heating head 50, and is characterized in that the circuit control part 20 and the battery 30 are arranged in the casing 10, the switch button 40 and the heating head 50 are electrically connected with the circuit control part 20, a skin contact electrode 51 is arranged on the heating head 50 of the casing 10, and the skin contact electrode 51 is in signal connection with the circuit control part 20.

A heating tip 50 having a conical arc-shaped protrusion is provided at the front end of the housing 10, and a skin contact electrode 51 is provided on the outer surface of the heating tip 50.

The heating tip 50 itself is a heat conductive insulating material, and the skin contact electrode 51 is an electroplating coating material having a conductive property.

A heating element 60 is closely disposed in the heating head 50, the heating element 60 includes a heating wire 61 and a ceramic heat transfer member 62, and the heating wire 61 is wound around the ceramic heat transfer member 62 to constitute a heating element.

The shell 10 is provided with a USB interface 11 at the end, and the USB interface 11 is electrically connected to the circuit control portion 20.

Referring to fig. 3, a schematic circuit diagram of the electronic eraser is shown, wherein the circuit control part comprises a USB interface module and a control IC, the USB interface module includes a first pin, a second pin, a third pin and a fourth pin, and the control IC includes 8 pins, which are respectively a first IC pin to an eighth IC pin; the first pin is connected with the first IC pin, the fourth pin is grounded, and the second IC pin is grounded after the first LED and the first resistor (R2) are connected in series; the fourth IC pin is connected with the switch key (S1) and then grounded; and the fifth IC pin is grounded; after the Battery (BAT) is connected with the first capacitor (C1) in parallel, one end of the Battery (BAT) is connected with the sixth IC pin, and the other end of the Battery (BAT) is grounded; the seventh IC pin is connected with a skin contact electrode (T1); the eighth IC pin is connected to the heater (H1) and then grounded.

The above description is only for the preferred embodiment of the present invention, and the present invention is not limited to the above description, and although the present invention is disclosed in the preferred embodiment, it is not limited to the above description, and any skilled person familiar with the art can make some changes or modifications to equivalent embodiments without departing from the scope of the present invention, but all the technical solutions of the present invention are within the scope of the present invention.

Claims

1. The electronic eraser with the skin contact protection function comprises a shell, a circuit control part, a battery, a switch key and a heating head, and is characterized in that the circuit control part and the battery are arranged in the shell, the switch key and the heating head are electrically connected with the circuit control part, a skin contact electrode is arranged on the heating head of the shell, and the skin contact electrode is in signal connection with the circuit control part.

2. The electronic eraser with skin contact protection function as claimed in claim 1, wherein a conical arc-shaped convex heating head is provided at the front end of the housing, and the outer surface of the heating head is provided with the skin contact electrode.

3. The electronic eraser with skin contact protection function as claimed in claim 2, wherein the heating tip itself is a heat conductive insulating material, and the skin contact electrode is an electroplating coating material with electrical conductivity.

4. The electronic eraser with skin contact protection function as claimed in claim 3, wherein a heating element is disposed in close contact with the inside of the heating head, the heating element comprises a heating wire and a ceramic heat transfer body, and the heating wire is wound on the ceramic heat transfer body to form the heating element.

5. The electronic eraser with skin contact protection function as claimed in claim 1, wherein the shell has a USB port at the rear end thereof, the USB port being electrically connected to the circuit control part.

6. The electronic eraser with skin contact protection function according to claim 1, wherein the circuit control portion comprises a USB interface module and a control IC, the USB interface module comprises a first pin, a second pin, a third pin and a fourth pin, and the control IC comprises 8 pins, which are respectively a first to an eighth IC pins; the first pin is connected with the first IC pin, the fourth pin is grounded, and the second IC pin is grounded after the first LED and the first resistor (R2) are connected in series; the fourth IC pin is connected with the switch key (S1) and then grounded; and the fifth IC pin is grounded; after the Battery (BAT) is connected with the first capacitor (C1) in parallel, one end of the Battery (BAT) is connected with the sixth IC pin, and the other end of the Battery (BAT) is grounded; the seventh IC pin is connected with a skin contact electrode (T1); the eighth IC pin is connected to the heater (H1) and then grounded.