阅读说明：本技术 一种可贴紧皮肤的导电电极 (Conductive electrode capable of being attached to skin ) 是由 朱向阳 孙瑜 于 2021-08-31 设计创作，主要内容包括：本发明公开了一种可贴紧皮肤的导电电极,包括：镂空平板,所述镂空平板正面开设有印刷电路槽；第一柔性基材,所述第一柔性基材顶端一体成型有两个凸台,所述第一柔性基材其中一个凸台的顶端固定连接有第一主电极,所述第一柔性基材另一个凸台的顶端固定连接有三个第一副电极,所述第一主电极和第一副电极之间设置有第一电路。本发明的有益效果是：本发明利用第一主电极和第一副电极的凸起设置(第二主电极和第二副电极同理),整体导电电极在一点压力的情况下紧紧贴合皮肤,可以有效采集信号；本发明不改变柔性电极本质,在同样制作工艺下可以使用柔性电极进行采样,更加贴合皮肤,信号采集效果更好。(The invention discloses a conductive electrode capable of being attached to skin, which comprises: the front surface of the hollowed-out flat plate is provided with a printed circuit groove; the flexible substrate comprises a first flexible substrate body, wherein two bosses are integrally formed at the top end of the first flexible substrate body, a first main electrode is fixedly connected to the top end of one of the bosses of the first flexible substrate body, three first auxiliary electrodes are fixedly connected to the top end of the other boss of the first flexible substrate body, and a first circuit is arranged between the first main electrode and the first auxiliary electrodes. The invention has the beneficial effects that: according to the invention, the bulges of the first main electrode and the first auxiliary electrode are arranged (the second main electrode and the second auxiliary electrode are the same in principle), so that the integral conductive electrode is tightly attached to the skin under the condition of a little pressure, and signals can be effectively collected; the invention does not change the essence of the flexible electrode, can use the flexible electrode to sample under the same manufacturing process, is more attached to the skin and has better signal acquisition effect.)

1. A skin-contactable conductive electrode, comprising:

the front surface of the hollowed-out flat plate (11) is provided with a printed circuit groove;

the flexible printed circuit board comprises a first flexible base material (12), wherein two bosses are integrally formed at the top end of the first flexible base material (12), a first main electrode (13) is fixedly connected to the top end of one boss of the first flexible base material (12), three first auxiliary electrodes (15) are fixedly connected to the top end of the other boss of the first flexible base material (12), and a first circuit (14) is arranged between the first main electrode (13) and the first auxiliary electrodes (15).

2. A skin-contactable electrically-conductive electrode as claimed in claim 1, wherein: the hollowed-out flat plate (11) is a hard flat plate, and the printed circuit groove corresponds to the combined shape of the first main electrode (13), the first circuit (14) and the first auxiliary electrode (15).

3. A skin-contactable electrically-conductive electrode as claimed in claim 1, wherein: the first circuit (14) is adhered to the top end of the first flexible substrate (12), and the first circuit (14), the first main electrode (13) and the first auxiliary electrode (15) are all made of conductive slurry.

4. A process for preparing a skin-attachable conductive electrode according to any one of claims 1 to 3, comprising the steps of:

the method comprises the following steps: the first flexible substrate (12) of the flexible electrode is thickened at the electrode during injection molding or thermoforming;

step two: flattening the first flexible substrate (12) by using a hollowed-out flat plate (11), and hollowing out the circuit line part of the flat plate (11);

step three: printing the flexible electrode conductive paste in a printed circuit groove of the hollowed-out panel (11), particularly at a boss of the first flexible base material (12);

step four: and (3) curing and molding the conductive slurry, and then taking down the hollow flat plate (11).

5. A skin-contactable conductive electrode, comprising:

a thin-layer flexible substrate (21), wherein a second main electrode (22) and three second auxiliary electrodes (24) are fixedly bonded to the upper surface of the thin-layer flexible substrate (21), and a second circuit (23) is arranged between the second main electrode (22) and the second auxiliary electrodes (24);

the flexible printed circuit board comprises a second flexible base material (25), wherein two bosses are integrally formed at the top end of the second flexible base material (25).

6. A skin-contactable electrically-conductive electrode as claimed in claim 5, wherein: the thickness setting of thin layer flexible substrate (21) is at zero point zero five millimeters to zero point five millimeters, second main electrode (22), second circuit (23) and three second auxiliary electrode (24) all bond at the upper surface of thin layer flexible substrate (21), second main electrode (22), second circuit (23) and three second auxiliary electrode (24) all adopt electrically conductive thick liquid.

7. A skin-contactable electrically-conductive electrode as claimed in claim 5, wherein: the thin-layer flexible base material (21) is fixedly connected to the top end of a second flexible base material (25), the second main electrode (22) is fixedly connected to the top end of one boss of the second flexible base material (25), and the third secondary electrode (24) is fixedly connected to the top end of the other boss of the second flexible base material (25).

8. A process for preparing a skin-attachable conductive electrode according to any one of claims 5 to 7, comprising the steps of:

the method comprises the following steps: printing a second main electrode (22), a second circuit (23) and three second auxiliary electrodes (24) on the upper surface of the thin-layer flexible base material (21);

step two: injection molding or thermoforming a second flexible substrate (25) as a structure, wherein thickening (i.e., two bosses) is performed in correspondence with the second main electrode (22) and the second sub-electrode (24);

step three: and correspondingly attaching the thin-layer flexible substrate (21) to the top end of the second flexible substrate (25).

Technical Field

The invention relates to a conductive electrode, in particular to a conductive electrode capable of being attached to the skin, and belongs to the technical field of flexible electronics.

Background

At present, the field of flexible electronics has been widely applied, and particularly, flexible wearable devices are gradually popular recently, so that the application of flexible materials is further expanded. At present, the electrode for collecting signals by attaching the flexible electronic product to the skin is mostly a metal electrode, and further is mostly a conductive copper electrode. Because the metal electrodes are hard, the skin is soft, and the metal electrodes can be tightly contacted with each other under a little pressure. However, a large number of flexible electrodes manufactured at present, such as silver paste-coated flexible substrates, conductive carbon nanotube flexible electrodes, organic PEDOT flexible electrodes, and the like, are soft in material, and therefore, the skin in contact with the flexible electrodes is also soft; when a little pressure is applied, the two parts cannot be perfectly attached to each other, and then relatively serious interference is generated on signal detection. To solve this problem, we redesign the substrate of the electrode so that the electrode can be tightly attached to the skin under a slight pressure to collect the signal.

Disclosure of Invention

The present invention is directed to solving the above problems and providing a conductive electrode that can be attached to the skin.

The invention achieves the above object by the following technical scheme, a conductive electrode capable of clinging to skin comprises:

the front surface of the hollowed-out flat plate is provided with a printed circuit groove;

the flexible substrate comprises a first flexible substrate body, wherein two bosses are integrally formed at the top end of the first flexible substrate body, a first main electrode is fixedly connected to the top end of one of the bosses of the first flexible substrate body, three first auxiliary electrodes are fixedly connected to the top end of the other boss of the first flexible substrate body, and a first circuit is arranged between the first main electrode and the first auxiliary electrodes.

Preferably, the hollowed-out flat plate is a hard flat plate, and the printed circuit groove corresponds to the combined shape of the first main electrode, the first circuit and the first auxiliary electrode.

Preferably, the first circuit is adhered to the top end of the first flexible substrate, and the first circuit, the first main electrode and the first auxiliary electrode are all made of conductive slurry.

Preferably, the preparation process of the conductive electrode capable of being attached to the skin comprises the following steps:

the method comprises the following steps: when the first flexible base material of the flexible electrode is subjected to injection molding or thermal forming, the thickened part at the electrode is two bosses;

step two: flattening the first flexible substrate by using a hollowed-out flat plate, wherein a printed circuit groove is formed in the hollowed-out circuit line part of the hollowed-out flat plate;

step three: printing the flexible electrode conductive paste inside a printed circuit groove of the hollowed-out flat plate, particularly at a boss of the first flexible base material;

step four: and (4) curing and molding the conductive slurry, and then taking down the hollowed-out flat plate.

A skin-contactable conductive electrode, comprising:

a second main electrode and three second auxiliary electrodes are fixedly bonded to the upper surface of the thin-layer flexible substrate, and a second circuit is arranged between the second main electrode and the second auxiliary electrodes;

the flexible substrate of second, flexible substrate top integrated into one piece has two bosss.

Preferably, the thickness of the thin-layer flexible substrate is set to be zero five millimeters to zero five millimeters, the second main electrode, the second circuit and the three second auxiliary electrodes are all adhered to the upper surface of the thin-layer flexible substrate, and the second main electrode, the second circuit and the three second auxiliary electrodes are all made of conductive slurry.

Preferably, the thin-layer flexible substrate is fixedly connected to the top end of a second flexible substrate, the second main electrode is fixedly connected to the top end of one boss of the second flexible substrate, and the three second auxiliary electrodes are fixedly connected to the top end of the other boss of the second flexible substrate.

Preferably, the preparation process of the conductive electrode capable of being attached to the skin comprises the following steps:

the method comprises the following steps: printing a second main electrode, a second circuit and three second auxiliary electrodes on the upper surface of the thin-layer flexible substrate;

step two: performing injection molding or thermal forming on the second flexible base material serving as the structure, wherein thickening treatment is performed on positions corresponding to the second main electrode and the second auxiliary electrode to form two bosses;

step three: the thin layer flexible substrate is correspondingly attached to the top end of the second flexible substrate.

The invention has the beneficial effects that:

firstly, the invention utilizes the convex arrangement of the first main electrode and the first auxiliary electrode (the second main electrode and the second auxiliary electrode are the same in principle), the whole conductive electrode is tightly attached to the skin under the condition of a little pressure, and the signal can be effectively collected.

Secondly, the invention does not change the essence of the flexible electrode, and the flexible electrode can be used for sampling under the same manufacturing process, so that the flexible electrode is more attached to the skin, and the signal acquisition effect is better.

Drawings

FIG. 1 is a schematic flow diagram of a preparation according to the present invention;

FIG. 2 is a schematic diagram of the front structure of a conductive electrode according to a preparation embodiment of the present invention;

FIG. 3 is a schematic view of a flow structure of a second preparation scheme of the present invention;

FIG. 4 is a schematic diagram of the front structure of two conductive electrodes according to the preparation method of the present invention

In the figure: 11. hollowing out the flat plate; 12. a first flexible substrate; 13. a first main electrode; 14. a first circuit; 15. a first sub-electrode; 21. a thin flexible substrate; 22. a second main electrode; 23. a second circuit; 24. a second auxiliary electrode; 25. a second flexible substrate.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the 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. 1-4, a skin-attachable conductive electrode includes:

the front surface of the hollowed-out flat plate 11 is provided with a printed circuit groove;

first flexible substrate 12, first flexible substrate 12 top integrated into one piece has two bosss, and the top fixedly connected with first main electrode 13 of one of them boss of first flexible substrate 12, the top fixedly connected with three first auxiliary electrode 15 of another boss of first flexible substrate 12, be provided with first circuit 14 between first main electrode 13 and the first auxiliary electrode 15.

As a technical optimization scheme of the present invention, the hollowed-out plate 11 is a hard plate, and the printed circuit groove corresponds to the combined shape of the first main electrode 13, the first circuit 14 and the first auxiliary electrode 15.

In a preferred embodiment of the present invention, the first circuit 14 is bonded to the top end of the first flexible substrate 12, and the first circuit 14, the first main electrode 13, and the first sub-electrode 15 are made of conductive paste.

As a technical optimization scheme of the invention, the preparation process of the conductive electrode capable of being attached to the skin comprises the following steps:

the method comprises the following steps: the first flexible substrate 12 of the flexible electrode is thickened at the electrode (i.e. two bosses) during injection molding or thermoforming;

step two: flattening the first flexible substrate 12 with a hollow plate 11, wherein the hollow plate 11 is provided with a hollow circuit line part (namely, a printed circuit groove);

correspondingly pressing the first flexible base material 12 by using the hollowed-out flat plate 11 to enable the two bosses to be stressed flatly;

step three: printing the flexible electrode conductive paste inside a printed circuit groove of the hollowed-out panel 11, especially at a boss of the first flexible base material 12;

step four: curing and molding the conductive slurry, and then taking down the hollow flat plate 11;

when the flexible conductive circuit is observed from the side, the electrode is raised, and can be tightly attached to the skin by slight stress when contacting the skin;

the conductive slurry comprises 3-20% of carbon nanotube solution, 5-20% of graphene solution, silver paste Ag/AgCl, copper paste and organic conductive substance PEDOT solution;

the first flexible substrate 12 includes liquid silicone, thermoplastic elastomer TPE, SEBS, etc., thermosetting elastomer TPV, nitrile rubber, etc.

A skin-contactable conductive electrode, comprising:

a thin-layer flexible substrate 21, wherein a second main electrode 22 and three second auxiliary electrodes 24 are fixedly bonded to the upper surface of the thin-layer flexible substrate 21, and a second circuit 23 is arranged between the second main electrode 22 and the second auxiliary electrodes 24;

the top end of the second flexible base material 25 is integrally formed with two bosses.

As a technical optimization scheme of the present invention, the thickness of the thin-layer flexible substrate 21 is set from zero five millimeters to zero five millimeters, the second main electrode 22, the second circuit 23 and the three second auxiliary electrodes 24 are all adhered to the upper surface of the thin-layer flexible substrate 21, and the second main electrode 22, the second circuit 23 and the three second auxiliary electrodes 24 all adopt conductive slurry.

In a preferred embodiment of the present invention, the thin flexible substrate 21 is fixedly attached to the top end of the second flexible substrate 25, the second main electrode 22 is fixedly attached to the top end of one of the bosses of the second flexible substrate 25, and the three second sub-electrodes 24 are fixedly attached to the top end of the other boss of the second flexible substrate 25.

As a technical optimization scheme of the invention, the preparation process of the conductive electrode capable of being attached to the skin comprises the following steps:

the method comprises the following steps: printing a second main electrode 22, a second circuit 23 and three second auxiliary electrodes 24 onto the upper surface of the thin flexible substrate 21;

step two: performing injection molding or thermoforming on the second flexible substrate 25 as a structure, in which thickening treatment (i.e., two bosses) is performed at positions corresponding to the second main electrode 22 and the second auxiliary electrode 24;

step three: correspondingly attaching the thin-layer flexible substrate 21 to the top end of the second flexible substrate 25;

when viewed from the side, the electrode bulges, and can be tightly attached to the skin by slight stress when contacting the skin;

the conductive slurry comprises 3-20% of carbon nanotube solution, 5-20% of graphene solution, silver paste Ag/AgCl, copper paste and organic conductive substance PEDOT solution;

the thin-layer flexible base material 21 comprises Polyurethane (PU), butadiene acrylonitrile rubber and other thermosetting elastomers;

the second flexible substrate 25 includes liquid silicone, thermoplastic elastomer TPE, SEBS, etc., thermosetting elastomer TPV, nitrile rubber, etc.

When the invention is used;

please refer to fig. 1 to 4;

the first conductive electrode preparation process and the second conductive electrode preparation process can be used on a bracelet, for example;

the raised conductive electrodes (i.e. the first main electrode 13 and the first auxiliary electrode 15, or the second main electrode 22 and the second auxiliary electrode 24) are on the inner side, and when the bracelet is put on, the conductive electrodes can be tightly attached to the skin slightly, so that signal collection can be performed.

To those skilled in the art;

firstly, the invention utilizes the convex arrangement of the first main electrode 13 and the first auxiliary electrode 15 (the same applies to the second main electrode 22 and the second auxiliary electrode 24), the whole conductive electrode is tightly attached to the skin under the condition of a little pressure, and the signal can be effectively collected.

Secondly, the invention does not change the essence of the flexible electrode, and the flexible electrode can be used for sampling under the same manufacturing process, so that the flexible electrode is more attached to the skin, and the signal acquisition effect is better.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.