A metal dry electrode device applied to various dry brain electric collectors

Abstract

The utility model discloses a kind of metal dry electrode devices applied to various dry brain electricity collector, belong to brain electricity collection technical field, a kind of metal dry electrode device applied to various dry brain electricity collector, including headgear, headgear inside is provided with bottom plate, the outside of headgear corresponding bottom plate is provided with top plate, wherein, bottom plate bottom is equipped with dry electrode contact, the top of bottom plate near ring side is equipped with first magnetic attraction piece;The utility model, when needing to use metal dry electrode, bottom plate is placed in headgear inside, so that bottom plate is penetrated headgear by conducting needle, then top plate is placed in headgear outside by aligning bottom plate, conducting needle and signal line are completed electrically connected by energization mechanism, and bottom plate, top plate are connected by first magnetic attraction piece, second magnetic attraction piece, by the installation mode of this dry electrode, dry electrode can be freely adjusted on the installation position of headgear, so that it can be suitable for various dry brain electricity collector, improve the applicability of dry electrode.

Description

Technical Field

[0001] This utility model relates to the field of electroencephalogram (EEG) acquisition technology, specifically a metal dry electrode device applied to various dry EEG acquisition devices. Background Technology

[0002] Dry electrodes are electrodes that do not require the use of conductive gel. They are mainly used to measure bioelectric potential signals, such as electrocardiogram (ECG), electroencephalogram (EEG), and electromyogram (EMG) signals. Since no skin preparation or conductive gel application is required, dry electrodes are well-suited for future health monitoring, rehabilitation, disease diagnosis and treatment, brain-computer interface (BCI) testing, and human-computer interaction systems.

[0003] Existing metal dry electrode devices require pre-drilled mounting positions on the EEG acquisition device's headgear before connecting to the dry electrode. However, different EEG acquisition devices require different mounting positions for the dry electrode, and the electrode's position cannot be freely adjusted. Therefore, dry electrodes are not suitable for different EEG acquisition devices and are inconvenient to use. To address this issue, we propose a metal dry electrode device applicable to various dry EEG acquisition devices. Utility Model Content

[0004] The purpose of this invention is to provide a metal dry electrode device applicable to various dry EEG acquisition devices. By using the installation method of this dry electrode, the installation position of the dry electrode on the headgear can be freely adjusted, making it suitable for various dry EEG acquisition devices and improving the applicability of the dry electrode.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a metal dry electrode device applied to various dry EEG acquisition devices, comprising a headgear, a base plate disposed on the inner side of the headgear, and a top plate disposed on the outer side of the headgear corresponding to the base plate, wherein, A dry electrode contact is installed at the bottom of the base plate, a first magnetic attractor is installed at the top of the base plate near the ring side, a second magnetic attractor is installed at the bottom of the top plate corresponding to the first magnetic attractor, and conductive needles are symmetrically installed at the top of the base plate. The conductive needle is electrically connected to the dry electrode contact. A signal line is installed on the top of the top plate. A connection groove is provided on the bottom of the top plate corresponding to the conductive needle. A power-conducting mechanism for electrically connecting the conductive needle and the signal line is provided in the connection groove.

[0006] Preferably, both the first magnetic attractor and the second magnetic attractor are annular, and the first magnetic attractor and the second magnetic attractor are magnetically connected.

[0007] Preferably, the tip of the conductive needle is tapered.

[0008] Preferably, the energizing mechanism includes a spring, a spring is installed on the top inner side of the connecting groove, a conductive plate is installed on the bottom of the spring, and the signal line is electrically connected to the conductive plate through an electrical connecting wire.

[0009] Preferably, the conductive sheet is elastically connected to the top plate via a spring.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows: In this invention, when a metal dry electrode is required, the base plate is placed inside the headgear, allowing the base plate to penetrate the headgear through conductive needles. Then, the top plate is placed on the outside of the headgear, aligned with the base plate. An energizing mechanism connects the conductive needles to the signal lines. The base plate and top plate are connected via a first magnetic chuck and a second magnetic chuck. This method of installing the dry electrode allows for free adjustment of its position on the headgear, making it suitable for various dry EEG acquisition devices and improving the applicability of the dry electrode.

[0011] In this invention, when connecting the base plate and the top plate, the conductive needle is inserted into the inside of the connecting groove, and the conductive sheet is tightly pressed against the conductive needle by the spring, so that the conductive sheet and the conductive needle are electrically connected. The conductive needle is electrically connected to the signal line through the connecting wire. Through this energizing mechanism, it is convenient to make the conductive needle and the signal line stably electrically connected when connecting the base plate and the top plate. Attached Figure Description

[0012] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a frontal cross-sectional view of the present invention. Figure 3 This utility model Figure 2 A magnified schematic diagram of the structure at point A in the middle.

[0013] In the diagram: 1. Headgear; 2. Base plate; 3. Top plate; 4. Dry electrode contact; 5. First magnetic chuck; 6. Second magnetic chuck; 7. Conductive needle; 8. Signal line; 9. Connecting groove; 10. Spring; 11. Conductive sheet; 12. Electrical connection wire. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example:

[0015] Please see Figures 1 to 3 This utility model provides a technical solution: a metal dry electrode device applied to various dry EEG acquisition devices, including a head cover 1, a base plate 2 disposed on the inner side of the head cover 1, and a top plate 3 disposed on the outer side of the head cover 1 corresponding to the base plate 2, wherein... A dry electrode contact 4 is installed at the bottom of the base plate 2. A first magnetic 5 is installed at the top of the base plate 2 near the ring side. A second magnetic 6 is installed at the bottom of the top plate 3 corresponding to the first magnetic 5. Conductive needles 7 are symmetrically installed at the top of the base plate 2. The conductive needle 7 is electrically connected to the dry electrode contact 4. A signal line 8 is installed on the top of the top plate 3. A connecting groove 9 is provided on the bottom of the top plate 3 corresponding to the conductive needle 7. A power-conducting mechanism for electrically connecting the conductive needle 7 and the signal line 8 is provided in the connecting groove 9. When a metal dry electrode is required, the base plate 2 is placed inside the headgear 1, allowing the base plate 2 to penetrate the headgear 1 through the conductive needle 7. Then, the top plate 3 is placed on the outside of the headgear 1, aligned with the base plate 2. The conductive needle 7 is electrically connected to the signal line 8 through the power-on mechanism. The base plate 2 and the top plate 3 are connected through the first magnetic suction member 5 and the second magnetic suction member 6. This method of installing the dry electrode allows for free adjustment of the installation position of the dry electrode on the headgear 1, making it suitable for various dry EEG acquisition devices and improving the applicability of the dry electrode.

[0016] Please see Figures 1 to 3 Both the first magnetic absorbing element 5 and the second magnetic absorbing element 6 are ring-shaped, and the first magnetic absorbing element 5 and the second magnetic absorbing element 6 form a magnetic connection. The top of the conductive needle 7 is conical, which allows it to easily penetrate the head cover 1. The first magnetic absorbing element 5 and the second magnetic absorbing element 6 enable the bottom plate 2 and the top plate 3 to be magnetically connected, facilitating the connection between the bottom plate 2 and the top plate 3.

[0017] Please see Figures 1 to 3 The energizing mechanism includes a spring 10. The spring 10 is installed on the top inner side of the connecting groove 9, and a conductive plate 11 is installed on the bottom of the spring 10. The signal line 8 is electrically connected to the conductive plate 11 through an electrical connecting line 12. The conductive plate 11 is elastically connected to the top plate 3 through the spring 10. When connecting between the bottom plate 2 and the top plate 3, the conductive needle 7 is inserted into the interior of the connecting groove 9. The conductive plate 11 is tightly pressed against the conductive needle 7 by the spring 10, so that the conductive plate 11 and the conductive needle 7 are electrically connected. The conductive needle 7 is electrically connected to the signal line 8 through the electrical connecting line 12. Through this energizing mechanism, it is convenient to make the conductive needle 7 and the signal line 8 stably electrically connected when connecting between the bottom plate 2 and the top plate 3.

[0018] Working Principle: This metal dry electrode device, applicable to various dry EEG acquisition devices, involves placing the base plate 2 inside the headgear 1 when the metal dry electrode is needed. The base plate 2 penetrates the headgear 1 through the conductive needle 7. Then, the top plate 3 is placed on the outside of the headgear 1, aligned with the base plate 2. An energizing mechanism connects the conductive needle 7 to the signal line 8. The base plate 2 and top plate 3 are connected via the first magnetic suction member 5 and the second magnetic suction member 6. This installation method allows for free adjustment of the dry electrode on the headgear 1. The mounting position on the top plate allows it to be used with various dry EEG acquisition devices, improving the applicability of dry electrodes. When the bottom plate 2 and the top plate 3 are connected, the conductive needle 7 is inserted into the inside of the connecting groove 9, and the conductive sheet 11 is tightly pressed against the conductive needle 7 by the spring 10, so that the conductive sheet 11 and the conductive needle 7 are electrically connected. The conductive needle 7 is electrically connected to the signal line 8 through the electrical connection line 12. Through this power-on mechanism, it is convenient to make the conductive needle 7 and the signal line 8 stably electrically connected when connecting the bottom plate 2 and the top plate 3.

[0019] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A metal dry electrode device for use in various dry EEG acquisition devices, comprising a headgear (1), characterized in that: The headgear (1) has a base plate (2) on its inner side, and a top plate (3) is provided on the outer side of the headgear (1) corresponding to the base plate (2). The bottom of the base plate (2) is equipped with a dry electrode contact (4), the top of the base plate (2) near the ring side is equipped with a first magnetic suction member (5), the bottom of the top plate (3) is equipped with a second magnetic suction member (6) corresponding to the bottom of the first magnetic suction member (5), and the top of the base plate (2) is symmetrically equipped with conductive needles (7). The conductive needle (7) is electrically connected to the dry electrode contact (4). A signal line (8) is installed on the top of the top plate (3). A connecting groove (9) is provided on the bottom of the top plate (3) corresponding to the conductive needle (7). A power-conducting mechanism for electrically connecting the conductive needle (7) and the signal line (8) is provided in the connecting groove (9).

2. The metal dry electrode device for use in various dry EEG acquisition devices according to claim 1, characterized in that: Both the first magnetic attractor (5) and the second magnetic attractor (6) are ring-shaped, and the first magnetic attractor (5) and the second magnetic attractor (6) form a magnetic attraction connection.

3. The metal dry electrode device for use in various dry EEG acquisition devices according to claim 1, characterized in that: The top of the conductive needle (7) is conical.

4. The metal dry electrode device for use in various dry EEG acquisition devices according to claim 1, characterized in that: The energizing mechanism includes a spring (10), the spring (10) is installed on the top inner side of the connecting groove (9), and a conductive sheet (11) is installed on the bottom of the spring (10). The signal line (8) is electrically connected to the conductive sheet (11) through an electrical connection line (12).

5. The metal dry electrode device for use in various dry EEG acquisition devices according to claim 4, characterized in that: The conductive sheet (11) is elastically connected to the top plate (3) via a spring (10).

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