CN210143163U

CN210143163U - Electronic circuit DIY writing pen and DIY external member

Info

Publication number: CN210143163U
Application number: CN201920091679.8U
Authority: CN
Inventors: 白兰军; 严启臻
Original assignee: Beijing Dream Ink Technology Co Ltd
Current assignee: Beijing Dream Ink Technology Co Ltd
Priority date: 2019-01-18
Filing date: 2019-01-18
Publication date: 2020-03-13
Anticipated expiration: 2029-01-18

Abstract

The utility model provides an electronic circuit DIY writing pen, DIY external member relates to electronic circuit technical field. The utility model provides an electronic circuit DIY writing pen includes: an internal thread hard pen tube; the external thread column is connected in the internal thread hard pen tube in a threaded manner; the rotating button is fixedly connected with the top of the external threaded column; the liquid metal is filled in the hose, and the top of the hose is hermetically connected with the bottom of the internal thread hard pen tube; the sealing plug is positioned in the hose, the top of the sealing plug abuts against the bottom of the external thread column, and an air pressure cavity is formed between the bottom of the sealing plug and the liquid metal level; the pen core connecting seat is hermetically connected with the bottom of the hose; the refill is fixed on the refill connecting seat. The technical scheme of the utility model can make electronic circuit simply, and the cost of manufacture is low, and helps satisfying the user to electronic circuit's individualized demand.

Description

Electronic circuit DIY writing pen and DIY external member

Technical Field

The utility model relates to an electronic circuit technical field especially relates to an electronic circuit DIY writes pen and DIY external member.

Background

DIY writing pens such as pens, ball pens, writing brushes, color pens and the like are available on the market, and can be used for drawing any circuit graph, but the circuit graph drawn by the DIY writing pens is only a design graph, and only has referential property in the practical application of an electronic circuit, so that the function and the performance of the electronic circuit are finally realized, and the function and the performance of the circuit are realized by the production processes of PCB manufacturing, PCB welding, part assembly and the like.

In addition, in the process of realizing the functions and the performances of the electronic circuit, the PCB needs to be manufactured by complex manufacturing procedures such as cutting, drilling, copper deposition, appearance circuit, pattern electroplating, etching, center testing, resistance welding and the like, and the functions of the PCB are realized by long production and processing period and high production cost, and the personalized requirements of users on the electronic circuit cannot be met.

SUMMERY OF THE UTILITY MODEL

The utility model provides an electronic circuit DIY writing pen and DIY external member can make electronic circuit simply, and the cost of manufacture is low, and helps satisfying the user to electronic circuit's individualized demand.

In a first aspect, the utility model provides an electronic circuit DIY writing pen adopts following technical scheme:

the electronic circuit DIY stylus includes:

an internal thread hard pen tube;

the external thread column is connected in the internal thread hard pen tube in a threaded manner;

the rotating button is fixedly connected with the top of the external thread column;

the liquid metal is filled in the hose, and the top of the hose is hermetically connected with the bottom of the internal thread hard pen tube;

the sealing plug is positioned in the hose, the top of the sealing plug abuts against the bottom of the external thread column, and an air pressure cavity is formed between the bottom of the sealing plug and the liquid metal level;

the pen core connecting seat is hermetically connected with the bottom of the hose;

the refill is fixed on the refill connecting seat.

Optionally, the refill is a fiber refill, and the material of the fiber refill is pig bristles, nylon or squirrel hairs.

Optionally, the cartridge includes an ink outlet head and a fiber brush, and the fiber brush and the ink outlet head are disposed in this order in a writing advancing direction.

Optionally, the ink outlet head comprises a stainless steel tank and an ink outlet at the bottom of the stainless steel tank; the fiber brush is made of pig bristles, nylon or squirrel hairs.

Optionally, in the direction perpendicular to the writing forward direction, the size d1 of the fiber brush and the maximum size d2 of the ink outlet in the direction meet 2.5mm ≧ d1-d2 ≧ 1.5 mm; in the height direction of the DIY writing pen of the electronic circuit, the length 1 of the free end of the fiber brush exceeding the ink outlet is 3.5mm, 1mm or more and 2.5mm or more.

Optionally, the top of the knob is provided with a cross-shaped groove.

Optionally, the material of the rotating button is hard plastic, nylon, organic glass or stainless steel; the internal thread hard pen tube is made of hard plastic, nylon, organic glass or stainless steel; the external threaded column is made of hard plastic, nylon, organic glass or stainless steel; the refill connecting seat is made of hard plastic, nylon, organic glass or stainless steel.

Optionally, the sealing plug is a rubber sealing plug.

Optionally, the hose is a rubber hose.

In a second aspect, the present invention provides a DIY kit for an electronic circuit, the DIY kit for an electronic circuit comprising any of the above electronic circuit DIY pens.

The utility model provides an electronic circuit DIY writes pen and DIY external member, this electronic circuit DIY writes pen and includes: an internal thread hard pen tube; the external thread column is connected in the internal thread hard pen tube in a threaded manner; the rotating button is fixedly connected with the top of the external threaded column; the liquid metal is filled in the hose, and the top of the hose is hermetically connected with the bottom of the internal thread hard pen tube; the sealing plug is positioned in the hose, the top of the sealing plug abuts against the bottom of the external thread column, and an air pressure cavity is formed between the bottom of the sealing plug and the liquid metal level; the pen core connecting seat is hermetically connected with the bottom of the hose; the refill is fixed on the refill connecting seat. This electronic circuit DIY writing pen is handed to the user, the extrusion hose makes the liquid metal in the hose reach the refill, write on the substrate and can form the liquid metal circuit on the substrate, when the extrusion hose refill is write and can not go out the liquid metal, through the operation turn-knob, make the sealing plug move down, exert pressure to the liquid metal, make the liquid metal liquid level move down, the extrusion hose once more can make the refill normally write out the liquid metal, consequently, use the utility model discloses technical scheme in the embodiment can make electronic circuit simply, and the cost of manufacture is low, and helps satisfying the user to electronic circuit's individualized demand.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive labor.

Fig. 1 is a first schematic structural diagram of a DIY pen with an electronic circuit according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a DIY pen of an electronic circuit according to an embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

It should be noted that, in the present invention, the technical features may be combined with each other without conflict.

The embodiment of the utility model provides an electronic circuit DIY pens, specifically, as shown in FIG. 1 and FIG. 2, FIG. 1 is the utility model provides a structural schematic diagram of electronic circuit DIY pens, FIG. 2 is the utility model provides a structural schematic diagram two of electronic circuit DIY pens, this electronic circuit DIY pens and includes:

an internal thread hard pen tube 2;

the external thread column 3 is connected in the internal thread hard pen tube 2 in a threaded mode;

the rotary button 1 is fixedly connected with the top of the external thread column 3;

the liquid metal 8 is filled in the hose 5, and the top of the hose 5 is hermetically connected with the bottom of the internal thread hard pen tube 2;

the sealing plug 4 is positioned in the hose 5, the top of the sealing plug 4 is propped against the bottom of the external thread column 3, and an air pressure cavity is formed between the bottom of the sealing plug 4 and the liquid level of the liquid metal 8;

the pen core connecting seat 6 is hermetically connected with the bottom of the hose 5;

and the pen core 7 is fixed on the pen core connecting seat 6.

The electronic circuit DIY writing pen can be assembled in the following mode: the electronic circuit DIY writing pen is characterized in that a hose 5, a pen core connecting seat 6 and a pen core 7 are assembled to obtain a first part, four parts including a sealing plug 4, an external thread column 3, an internal thread hard pen tube 2 and a rotary button 1 are assembled to obtain a second part, liquid metal 8 is filled in the hose 5, then the first part and the second part are assembled to obtain the electronic circuit DIY writing pen.

This electronic circuit DIY writing pen is handed to the user, extrusion hose 5 makes liquid metal 8 in the hose 5 reach refill 7, write on the substrate and can form liquid metal 8 circuit on the substrate, when extrusion hose 5 refill 7 writes can not go out liquid metal 8, turn round 1 through the operation, make external screw thread post 3 move down in internal thread hard tube pen 2, and then drive sealing plug 4 and move down, to liquid metal 8 application pressure, make liquid metal 8 liquid level move down, extrude hose 5 once more and can make refill 7 normally write out liquid metal 8, consequently, use the utility model discloses technical scheme in the embodiment can make electronic circuit simply, the cost of manufacture is low, and help satisfying the individualized demand of user to electronic circuit. Furthermore, the embodiment of the utility model provides a need not professional PCB board, need not professional technical personnel, just can realize electronic circuit's function. In application, the plastic deformability of the liquid metal is utilized to write on the surface of the 3D shape, various gestures and sculpted electronic circuits are drawn, the circuit function is realized, lively and lovely animation can be used for reference, and the entertainment is enhanced.

Use the embodiment of the utility model provides an electronic circuit DIY writing pen can write on the flexible substrate, the stereoplasm substrate or the human skin of any adherable liquid metal. When the substrate is human skin, the electronic circuit formed is a wearable electronic circuit. The manufactured electronic circuit can be applied to cultural creative products, makeup products, personal devices, teaching aids, monitoring circuits, alarm circuits and the like, and is good news for electronic enthusiasts, digital DIY enthusiasts, science popularization educators, fashion pursuits, electronic research and development personnel and the like.

The embodiment of the utility model provides a liquid metal mentioned is that the melting point is at the elementary metal of below 300 degrees centigrade, the melting point is at the alloy of below 300 degrees centigrade, or above the elementary metal and/or the alloy of metal are the conductive mixture of essential element. Preferably, the melting point of the liquid metal is near room temperature, so that the liquid metal in the electronic circuit DIY pen is liquid at room temperature or can be liquid after being slightly heated, and the electronic circuit DIY pen is convenient to use. For example, the liquid metal is a gallium-based liquid metal, such as a gallium-indium eutectic alloy, a gallium simple substance, or a gallium-indium-tin eutectic alloy, and the liquid metal may also be a mixture of the gallium-based liquid metal and one or more of nickel powder, iron-nickel powder, and silver-coated copper powder, and preferably, the liquid metal is a mixture of the gallium-based liquid metal, the iron-nickel powder, and the silver-coated copper powder.

When the melting point of the liquid metal in the electronic circuit DIY writing pen is higher than the room temperature, the electronic circuit DIY writing pen can be soaked in hot water or heated in other heating modes, so that the liquid metal in the electronic circuit DIY writing pen is melted into a liquid state, and then the electronic circuit DIY writing pen is used. In addition, the liquid metal in the electronic circuit DIY writing pen can be melted into a liquid state by arranging a heating component in the electronic circuit DIY writing pen.

Optionally, the top of the knob 1 is provided with a cross-shaped recess to facilitate the user to operate the knob 1 using a hand or a tool. Optionally, when the knob 1 is rotated clockwise, the external threaded rod 3 moves downward in the internal threaded hard tube pen 2, and then drives the sealing plug 4 to move downward, so as to meet the operation habit of most people. Optionally, the electronic circuit DIY pen is in a new state, the knob 1 and a part of the externally threaded stud 3 are beyond the top of the internally threaded rigid barrel 2, so that the knob 1 is easier to rotate.

Optionally, the material of knob 1 is duroplasts, nylon, organic glass or stainless steel to make knob 1 have better structural strength, and be difficult for being corroded by liquid metal, structural stability is good. The internal thread pencil tube 2 is made of hard plastic, nylon, organic glass or stainless steel, so that the internal thread pencil tube 2 has good structural strength, is not easy to corrode by liquid metal, and has good structural stability. The material of external screw thread post 3 is duroplasts, nylon, organic glass or stainless steel to make external screw thread post 3 have better structural strength, and be difficult for being corroded by liquid metal, structural stability is good. The material of refill connecting seat 6 is duroplasts, nylon, organic glass or stainless steel to make refill connecting seat 6 have better structural strength, and be difficult for being corroded by liquid metal, structural stability is good.

Optionally, the sealing plug 4 is a rubber sealing plug, so that the sealing plug 4 can be kept in close contact with the hose 5, the sealing effect is good, and the liquid metal is not easily corroded.

Optionally, the hose 5 is a rubber hose, so that the hose 5 is easily deformed by squeezing and is not easily corroded by liquid metal.

Optionally, a lyophobic liquid metal layer is arranged on the inner wall of the hose 5, and the liquid metal layer is arranged on the inner wall of the hose 5, so that the liquid metal cannot be adhered to the inner wall of the hose, and the utilization rate of the liquid metal is improved. The embodiment of the utility model provides a lyophobic liquid metal layer can be made by one or several kinds in docosane, stearic acid, palmitic acid, arachidic acid, wood wax, palm wax, rice bran wax, jojoba wax, castor wax, bayberry wax, candelilla wax, from beeswax, worm white wax, wool wax, spermaceti, paraffin wax, microcrystalline wax, petroleum wax, emulsifying wax, montan wax, fischer-tropsch wax, polyethylene wax, polypropylene wax, chlorinated paraffin wax, ethylene-vinyl acetate copolymer wax, ethylene oxide wax.

The structure of the pen core 7 in the embodiment of the present invention can be various, which will be described below by way of example.

In one example, as shown in fig. 1, the refill 7 is a fiber refill made of pig bristles, nylon or squirrel hairs, so that the refill 7 has a good writing effect and is not easily corroded by liquid metal. Optionally, the longitudinal section of the pen core 7 is a right trapezoid, so that liquid metal lines with different line widths can be written at different positions of the pen core 7, and the application range of the electronic circuit DIY writing pen is wider. The DIY writing pen of the electronic circuit can quickly write electronic circuit patterns with different line thicknesses and different shapes.

In another example, as shown in fig. 2, the cartridge 7 includes an ink discharging head and a fiber brush, the fiber brush and the ink discharging head are arranged in sequence in the writing advancing direction, and when the hose 5 is pressed, the squeezed liquid metal flows out from the ink discharging head, and the cartridge 7 is slid along, and the fiber brush can brush the flowing liquid metal into a thin layer. The liquid metal circuit written by the DIY writing pen of the electronic circuit has good uniformity. The fiber brush and the ink outlet head can be fixed with each other by various modes such as bonding, binding and the like.

Optionally, the ink outlet head comprises a stainless steel groove and an ink outlet positioned at the bottom of the stainless steel groove, and the fiber brush is made of pig bristles, nylon or squirrel hairs, so that the writing effect of the pen core 7 is good, and the pen core is not easily corroded by liquid metal. The bottom of the stainless steel groove can be a plane or an inclined plane, preferably, the bottom of the stainless steel groove is an inclined plane which inclines upwards, that is, the height of the stainless steel groove is gradually reduced in the writing advancing direction (which can also be described as the height of the stainless steel groove gradually increased from the base material).

Optionally, in a direction perpendicular to the writing advancing direction, i.e., the width direction of the fiber brush, the dimension d1 of the fiber brush and the maximum dimension d2 of the ink outlet in the direction satisfy 2.5mm ≥ d1-d2 ≥ 1.5mm, so that the working range of the fiber brush can completely cover the working range of the ink outlet, i.e., all liquid metal from the ink outlet can be uniformly brushed by the fiber brush, which is beneficial to improving the uniformity of liquid metal lines written by the electronic circuit DIY writing pen. The ink outlet can be round or rectangular. The diameter of the ink outlet can be 1 mm-2 mm when the ink outlet is round, the length of the ink outlet can be 1.5 mm-3 mm when the ink outlet is rectangular, and the width of the ink outlet can be 0.5 mm-1.5 mm.

Optionally, in the height direction of the electronic circuit DIY writing pen, the free end of the fiber brush exceeds the ink outlet, and the exceeding length 1 is 3.5mm or more, which is more than or equal to 1mm or more than or equal to 2.5mm, so that when the fiber brush contacts with the surface of the substrate in the writing process of the electronic circuit DIY writing pen, a proper distance is provided between the ink outlet and the surface of the substrate, the distance can accommodate the flowing liquid metal, and the pollution of the ink outlet caused by the contact of the ink outlet and the surface of the substrate can be avoided, and the ink outlet effect is influenced. Alternatively, the height of the fiber brush is 7mm and the height of the ink outlet is 4mm in the height direction of the electronic circuit DIY writing pen.

In addition, the play black mode of the ball that the ordinary refill of electronic circuit writing pen among the prior art adopted for when the conductive ink of this electronic circuit writing pen was the great or the conductive ink that is adulterated with the granule of viscosity, the refill of electronic circuit writing pen was blockked up easily, can't go out the china ink, and can't maintain, and the embodiment of the utility model provides an electronic circuit DIY writing pen's refill 7 has two kinds of structures as above, even the liquid metal viscosity is great or adulterated have the granule also difficult jam, and refill 7 easily washs.

Optionally, the embodiment of the utility model provides an electronic circuit DIY writes width of refill 7 in the pen for 2mm ~ 3mm, optionally, the width at the top of refill is 3mm, and the width of bottom is 2mm to make can write out the liquid metal circuit that has different linewidths through its different positions. The pen core 7 herein is not limited to the two examples described above.

The thickness of the liquid metal line written by the DIY writing pen of the electronic circuit is 50-80 μm. Aiming at common power supplies and elements, the line width of the liquid metal circuit is 3 +/-1 mm, so that the requirement can be met, namely the electronic circuit DIY writing pen is used for drawing one pen or two pens.

In addition, the embodiment of the utility model provides a still provides an electronic circuit's DIY external member, this electronic circuit's DIY external member include above arbitrary electronic circuit DIY pen.

Optionally, the DIY kit of electronic circuits further comprises: one or more of a patch kit, a packaging kit, a smear kit, a modification kit.

The attaching kit comprises an attaching tool, a power supply and at least one element, the attaching kit is used for attaching the power supply and the at least one element, the power supply and the at least one element are connected with the liquid metal circuit, and the power supply, the liquid metal circuit and the at least one element form a closed loop.

The packaging kit comprises a container containing packaging materials and a packaging tool, the packaging kit is used for forming a packaging layer and packaging the liquid metal circuit, the power supply and at least one element, and the packaging layer can effectively package the liquid metal circuit and is beneficial to the structural stability of the electronic circuit.

The packaging material can be liquid band-aid (spray coating), hair spray (spray coating), nail polish (brush coating), PU film (direct sticking), chitosan aqueous solution, polyvinylpyrrolidone aqueous solution, polyvinyl alcohol aqueous solution, polyvinyl butyral alcoholic solution, hyaluronic acid aqueous solution, hyaluronic acid, and sodium alginate gel.

The smearing external member comprises a container and a smearing tool, wherein the container is filled with an isolating material, the smearing external member is used for forming an isolating layer on a base material, particularly human skin, the isolating layer can be adhered with liquid metal and is insulating, and in addition, the isolating layer can also have the performances of biocompatibility and the like, so that when the liquid metal line is written on the human skin, the isolating layer can be formed on the human skin firstly, and then the liquid metal line is written on the isolating layer, and the human skin cannot be damaged.

Optionally, the isolation material can be dried quickly within 5-20 min, and can be cleaned within 10min by using the hand sanitizer and the soap. The isolating material can be one or more, and when the isolating material is more than one, the corresponding smearing tool is more than one, so as to form an isolating layer with a multi-layer structure, for example, the isolating layer is a double-layer structure, the bottom layer (the layer contacting the skin) has biocompatibility, and the top layer (the layer contacting the liquid metal) can adhere to the liquid metal and the packaging layer. The isolation material can be one or more of PU (polyurethane) transdermal adhesive, double-sided adhesive, hand film (or hand wax), VAE (vinyl acetate) emulsion, double-component silica sulfide (A component is silica sulfide, B component is platinum catalyst) and the like. Preferably, the isolation material comprises two-component silica gel and hand film (or hand wax) to form an isolation layer with a bottom layer of silica gel and a top layer of hand film (or hand wax).

The modification kit includes a liquid metal erase pen that can erase the excess liquid metal lines.

The liquid metal erasing pen is filled with a modifying ink, wherein the modifying ink can be one or a mixture of more than two of water, ethanol, ethylene glycol, glycerol, n-butanol, isobutanol, isopropanol, isoamylol, 1, 3-butanediol, n-hexane, cyclohexane, n-heptane, n-octane and isooctane, or the modifying ink is a sodium hydroxide solution with the mass ratio of 1%, or the modifying ink is a hydrochloric acid solution with the mass ratio of 1%. After the liquid metal is erased by using the modifying ink, the residual modifying ink can volatilize by self without causing adverse effects.

The embodiment of the utility model provides an electronic circuit's DIY external member uses this DIY external member can simplify electronic circuit's manufacturing method and designability better.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.

Claims

1. An electronic circuit DIY stylus, comprising:

an internal thread hard pen tube;

the refill is fixed on the refill connecting seat.

2. The DIY pen as claimed in claim 1, wherein said cartridge is a fibrous cartridge made of pig bristles, nylon or squirrel hair.

3. The electronic circuit DIY pen of claim 1, wherein the cartridge comprises an ink outlet head and a fiber brush, the fiber brush and the ink outlet head being arranged in sequence in a writing forward direction.

4. The electronic circuit DIY stylus of claim 3, wherein the ink outlet head comprises a stainless steel tank and an ink outlet at a bottom of the stainless steel tank; the fiber brush is made of pig bristles, nylon or squirrel hairs.

5. The DIY electronic circuit writing pen according to claim 4, wherein the dimension d1 of the fiber brush and the largest dimension d2 of the ink outlet in the direction perpendicular to the writing forward direction satisfy 2.5mm ≧ d1-d2 ≧ 1.5 mm; in the height direction of the DIY writing pen of the electronic circuit, the length range of the free end of the fiber brush exceeding the ink outlet is 2.5 mm-3.5 mm.

6. The electronic circuit DIY stylus according to claim 1, wherein a cross-shaped recess is provided in a top portion of the knob.

7. The DIY electronic circuit writing pen of claim 1, wherein the rotating knob is made of hard plastic, nylon, plexiglass or stainless steel; the internal thread hard pen tube is made of hard plastic, nylon, organic glass or stainless steel; the external threaded column is made of hard plastic, nylon, organic glass or stainless steel; the refill connecting seat is made of hard plastic, nylon, organic glass or stainless steel.

8. An electronic circuit DIY stylus according to claim 1, wherein the sealing plug is a rubber sealing plug.

9. The electronic circuit DIY stylus of claim 1, wherein the hose is a rubber hose.

10. A DIY kit for an electronic circuit, comprising: an electronic circuit DIY pen as claimed in any of claims 1 to 9.