Electroencephalogram signal sensor and electroencephalogram helmet

Abstract

The utility model discloses an electroencephalogram signal sensor and an electroencephalogram helmet. The electroencephalogram signal sensor comprises a shell, a circuit board and a plurality of electrode units. The circuit board is arranged in the shell, and the first end of each electrode unit is arranged in the shell; the first end of each electrode unit is connected with the circuit board; the electrode unit comprises an electrode tip, an electrode shell and an elastic mechanism, and the elastic mechanism is arranged in the electrode shell; one end of the elastic mechanism is arranged at the bottom of the electrode shell, and the other end is fixed on the electrode tip; the electrode tip is made of conductive materials, the electrode shell is made of conductive materials, and the electrode tip is connected with a circuit board through the electrode shell and sends collected signals to the circuit board. According to the electroencephalogram signal sensor and the electroencephalogram helmet, the wearing comfort can be improved, the electroencephalogram signal sensor and the electroencephalogram helmet can make better contact with the scalp, and electroencephalogram signals can be collected conveniently.

Description

Technical Field

[0001] The utility model belongs to the technical field of signal sensing, and relates to a signal sensor, in particular to an electroencephalogram signal sensor and an electroencephalogram helmet. Background Art

[0002] The EEG signal sensor is a sensor used to collect brain epidermal signals; the existing EEG signal sensor usually adopts a scheme in which the entire sensor is made of conductive rubber. The disadvantages of the existing scheme include: (1) Since the conductive rubber is relatively hard, it is uncomfortable for the wearer to wear; (2) Since the conductive rubber is fixed, the contact effect with the scalp is poor, and the scalp is often not contacted, thereby affecting the collection of EEG signals.

[0003] In view of this, there is an urgent need to design a new EEG signal sensor to overcome at least some of the above-mentioned defects of the existing EEG signal sensors. Utility Model Content

[0004] The utility model provides an electroencephalogram signal sensor and an electroencephalogram helmet, which can improve wearing comfort, better contact with the scalp, and effectively collect electroencephalogram signals.

[0005] In order to solve the above technical problems, according to one aspect of the utility model, the following technical solution is adopted:

[0006] An electroencephalogram signal sensor, comprising a housing, a circuit board and a plurality of electrode units;

[0007] The circuit board is arranged on the housing, and the first end of each electrode unit is arranged on the housing; the first end of each electrode unit is connected to the circuit board;

[0008] The electrode unit comprises an electrode head, an electrode shell and an elastic mechanism, wherein the elastic mechanism is arranged in the electrode shell; one end of the elastic mechanism is arranged at the bottom of the electrode shell, and the other end is fixed to the electrode head;

[0009] The electrode head is made of a conductive material, the electrode shell or the elastic mechanism is made of a conductive material, and the electrode head is connected to the circuit board through the electrode shell or the elastic mechanism to send the collected signal to the circuit board;

[0010] An opening is provided at the end of the electrode shell, and a part of the electrode head is arranged outside the electrode shell through the opening; a limiting mechanism is provided at the end of the electrode head, so that a part of the electrode head is located inside the electrode shell.

[0011] As an implementation mode of the utility model, the EEG signal sensor further includes a connector, which is connected to the lower part of the shell; the connector is made of conductive material, and is connected to the circuit board.

[0012] As an implementation mode of the utility model, the connecting member is provided with a conductive connecting end and a second elastic mechanism, the conductive connecting end is provided with a hollow area, and the second elastic mechanism is arranged in the hollow area;

[0013] The first end of the second elastic mechanism is arranged based on the shell, and the second end of the second elastic mechanism is fixedly arranged in the hollow area of ​​the conductive connection terminal.

[0014] As an implementation mode of the utility model, the conductive connection end is provided with a contact point, which can be connected to a set electrode connector.

[0015] As an implementation mode of the utility model, the conductive connection end is provided with a slot to facilitate connection with a set electrode connector.

[0016] As an implementation mode of the utility model, the circuit board is provided with an interface connected with the electrode housing or the elastic mechanism.

[0017] As an implementation manner of the utility model, the elastic mechanism is a spring.

[0018] As an implementation mode of the present invention, the structures of the electrode units are the same.

[0019] As an implementation mode of the utility model, each electrode unit is arranged on one side of the shell; and the circuit board is arranged inside the shell.

[0020] According to another aspect of the utility model, the following technical solution is adopted: an EEG helmet, which includes the above-mentioned EEG signal sensor.

[0021] The beneficial effect of the utility model is that the EEG signal sensor and EEG helmet proposed by the utility model can improve wearing comfort and can better contact the scalp, so as to collect EEG signals. In one use scenario of the utility model, the electrode unit contacting the scalp is adjusted to a metal material (conductive), and the electrode unit also contains a spring. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 Schematic diagram of the structure of the electroencephalogram signal sensor in one embodiment of the utility model.

[0023] Figure 2 It is a stereoscopic diagram of an electroencephalogram signal sensor in one embodiment of the utility model.

[0024] Figure 3 It is a top view of the EEG signal sensor in one embodiment of the utility model.

[0025] Figure 4 This is a structural schematic diagram of an EEG signal sensor installed on an EEG helmet component in one embodiment of the utility model.

[0026] Figure 5 It is a schematic diagram of the structure of an EEG helmet in one embodiment of the utility model. DETAILED DESCRIPTION

[0027] The preferred embodiments of the present utility model are described in detail below with reference to the accompanying drawings.

[0028] In order to further understand the present invention, preferred embodiments of the present invention are described below in conjunction with examples. However, it should be understood that these descriptions are only for further illustrating the features and advantages of the present invention, rather than limiting the claims of the present invention.

[0029] The description in this section is only for several typical embodiments, and the present invention is not limited to the scope of the embodiments. The same or similar prior art means and some technical features in the embodiments are mutually replaced and are also within the scope of the present invention.

[0030] The term "connection" as used in the specification includes both direct connection and indirect connection, such as connection through some active devices, passive devices or electrically conductive media; it may also include connection through other active devices or passive devices known to those skilled in the art on the basis of achieving the same or similar functional purposes, such as connection through circuits or components such as switches and follower circuits.

[0031] The utility model discloses a brain electric signal sensor. Figures 1 to 3 This is a schematic diagram of the structure of the EEG signal sensor in one embodiment of the present invention; please refer to Figures 1 to 3 The EEG signal sensor includes a housing 1, a circuit board 2, and a plurality of electrode units 3; the circuit board 2 is disposed on the housing 1, and the first end of each electrode unit 3 is disposed on the housing 1; the first end of each electrode unit 3 is connected to the circuit board 2, and can send the collected signal to the circuit board 2. In one embodiment, each electrode unit 3 is disposed on one side of the housing 1; and the circuit board 2 is disposed inside the housing 1.

[0032] In one embodiment, the housing 1 may include an upper housing 11 and a lower housing 12. The upper housing 11 and the lower housing 12 are buckled together to form a hollow area inside for placing the circuit board 2 and the ends of each electrode unit 3. The housing 1 may be provided with a slot 13 to facilitate connection with a set electrode connector.

[0033] The electrode unit 3 includes an electrode head 31, an electrode shell 32 and an elastic mechanism 33, and the elastic mechanism 33 can be a spring. The elastic mechanism 33 is arranged in the electrode shell 32; one end of the elastic mechanism 33 is arranged at the bottom of the electrode shell 32, and the other end is fixed to the electrode head 31. The electrode head 31 is made of conductive material, and the electrode shell 32 or the elastic mechanism 33 is made of conductive material. The electrode head 31 is connected to the circuit board 2 through the electrode shell 32 or the elastic mechanism 33 to send the collected signal to the circuit board 2; the circuit board 2 is provided with an interface connected to the electrode shell 32 or the elastic mechanism 33. An opening is provided at the end of the electrode shell 32, and a part of the electrode head 31 is arranged outside the electrode shell 32 through the opening; a limiting mechanism is provided at the end of the electrode head 31, so that a part of the electrode head 31 is continuously located inside the electrode shell 32. The structures of each electrode unit 3 can be the same, so that each electrode unit 3 can be subjected to a balanced force.

[0034] In an embodiment of the present utility model, the EEG signal sensor further includes a connector 4 , which is connected to the lower portion of the housing 1 ; the connector 4 is made of a conductive material, and is connected to the circuit board 2 .

[0035] The connector 4 is provided with a conductive connection terminal 41 and a second elastic mechanism 42. The conductive connection terminal 41 is provided with a hollow area, and the second elastic mechanism 42 is arranged in the hollow area. The first end of the second elastic mechanism 42 is arranged based on the housing 1, and the second end of the second elastic mechanism 42 is fixedly arranged in the hollow area of ​​the conductive connection terminal 41. The second elastic mechanism 42 can adopt a spring pin structure, which includes a spring and a connection terminal, and the connection terminal is located at the bottom of the hollow area of ​​the conductive connection terminal 41. The conductive connection terminal 41 can be provided with a contact point, which can be connected to a set electrode connector.

[0036] The utility model further discloses an EEG helmet, which comprises the EEG signal sensor mentioned above.

[0037] Figure 4 This is a schematic diagram of the structure in which an EEG signal sensor is installed on an EEG helmet component in one embodiment of the utility model. Figure 5 This is a schematic diagram of the structure of an EEG helmet in one embodiment of the utility model; please refer to Figure 4 , Figure 5In one use scenario of the utility model, the EEG signal sensor 100 can be installed in the EEG helmet 200; the EEG helmet 200 is composed of a plurality of modules 300, and a groove is provided in the module 300 for installing the corresponding EEG signal sensor 100. When the user wears the EEG helmet, the user's scalp and the EEG helmet shell will exert a squeezing force on each electrode unit of the EEG signal sensor; the electrode unit of the EEG signal sensor adopts an elastic structure, and the spring contracts to a suitable state, which can better contact with the user's scalp and collect EEG signals; in addition, the user is more comfortable to wear.

[0038] In summary, the EEG signal sensor and EEG helmet proposed by the utility model can improve wearing comfort and better contact with the scalp, and can be used to collect EEG signals. In one use scenario of the utility model, the electrode unit contacting the scalp is adjusted to a metal material (conductive), and the electrode unit also contains a spring.

[0039] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0040] The description and application of the utility model here are illustrative, and it is not intended to limit the scope of the utility model to the above-mentioned embodiments. The effects or advantages involved in the embodiments may not be embodied in the embodiments due to interference from various factors, and the description of the effects or advantages is not used to limit the embodiments. The deformation and changes of the embodiments disclosed here are possible, and the replacement of the embodiments and the various equivalent components are well known to those of ordinary skill in the art. It should be clear to those skilled in the art that the utility model can be implemented in other forms, structures, arrangements, proportions, and with other components, materials and parts without departing from the spirit or essential features of the utility model. Other deformations and changes can be made to the embodiments disclosed here without departing from the scope and spirit of the utility model.

Claims

1. An electroencephalogram signal sensor, characterized in that: The EEG signal sensor comprises a housing, a circuit board and a plurality of electrode units; The circuit board is arranged on the housing, and the first end of each electrode unit is arranged on the housing; the first end of each electrode unit is connected to the circuit board; The electrode unit comprises an electrode head, an electrode shell and an elastic mechanism, wherein the elastic mechanism is arranged in the electrode shell; one end of the elastic mechanism is arranged at the bottom of the electrode shell, and the other end is fixed to the electrode head; The electrode head is made of a conductive material, the electrode shell or the elastic mechanism is made of a conductive material, and the electrode head is connected to the circuit board through the electrode shell or the elastic mechanism to send the collected signal to the circuit board; An opening is provided at the end of the electrode shell, and a part of the electrode head is arranged outside the electrode shell through the opening; a limiting mechanism is provided at the end of the electrode head, so that a part of the electrode head is located inside the electrode shell.

2. The electroencephalogram signal sensor according to claim 1, characterized in that: The EEG signal sensor further includes a connector, which is connected to the lower part of the shell; the connector is made of conductive material, and is connected to the circuit board.

3. The electroencephalogram signal sensor according to claim 2, characterized in that: The connecting member is provided with a conductive connecting terminal and a second elastic mechanism, the conductive connecting terminal is provided with a hollow area, and the second elastic mechanism is arranged in the hollow area; The first end of the second elastic mechanism is arranged based on the shell, and the second end of the second elastic mechanism is fixedly arranged in the hollow area of ​​the conductive connection terminal.

4. The electroencephalogram signal sensor according to claim 3, characterized in that: The conductive connection end is provided with a contact point, which can be connected to a set electrode connector.

5. The electroencephalogram signal sensor according to claim 3, characterized in that: The conductive connection end is provided with a slot to facilitate connection with a set electrode connector.

6. The electroencephalogram signal sensor according to claim 1, characterized in that: The circuit board is provided with an interface connected with the electrode housing or the elastic mechanism.

7. The electroencephalogram signal sensor according to claim 1, characterized in that: The structures of the electrode units are the same.

8. The electroencephalogram signal sensor according to claim 1, characterized in that: Each electrode unit is arranged on one side of the shell; and the circuit board is arranged inside the shell.

9. The electroencephalogram signal sensor according to claim 1, characterized in that: The electrode head is in contact with the electrode shell, and the electrode head and the electrode shell are made of conductive metal.

10. An electroencephalogram helmet, characterized in that: The EEG helmet comprises the EEG signal sensor described in any one of claims 1 to 9.

Images