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CN-122004874-A - ECG collecting electrode on automobile steering wheel

CN122004874ACN 122004874 ACN122004874 ACN 122004874ACN-122004874-A

Abstract

The invention discloses an ECG (electrocardiogram) acquisition electrode on an automobile steering wheel, and relates to the technical field of ECG acquisition. The steering wheel comprises a steering wheel body, the steering wheel body comprises a metal framework and a leather layer coated on the outer side of the metal framework, a flexible electrode is sewn on the outermost layer of the leather layer, an insulating substrate is arranged between the metal framework and a silver-plated copper wire electrode, the tail end of the flexible electrode is connected with a conductive matrix, the conductive matrix is connected with an ECG signal processing module through a flexible wire, and the flexible wire penetrates through the steering wheel body. According to the invention, the flexible electrode is sewn on the outermost layer of the leather layer of the steering wheel, so that the hard structure of the traditional embedded metal electrode is abandoned, the electrode keeps soft touch along with the leather layer, no foreign matters are felt, no indentation is generated when a driver holds the electrode, and the holding experience of full flexible lamination is realized.

Inventors

  • YAN FANGCHAO
  • MA BINSHENG
  • TANG ZHICHENG

Assignees

  • 天津布尔科技有限公司

Dates

Publication Date
20260512
Application Date
20260413

Claims (7)

  1. 1. The utility model provides an ECG collection electrode on car steering wheel, includes steering wheel body (1), steering wheel body (1) include metal skeleton and cladding leather layer (4) in the metal skeleton outside, its characterized in that: The outermost layer of the leather layer (4) is sewed with a flexible electrode (5); an insulating substrate (2) is arranged between the metal framework and the silver-plated copper wire electrode; the tail end of the flexible electrode (5) is connected with a conductive matrix (3), the conductive matrix (3) is connected with the ECG signal processing module through a flexible wire, and the flexible wire penetrates through the steering wheel body (1).
  2. 2. The ECG acquisition electrode on an automobile steering wheel as claimed in claim 1, wherein the wire diameter of the flexible electrode (5) is 0.1-0.3mm, and the starting end and the ending end of the flexible electrode (5) are not disconnected.
  3. 3. The ECG acquisition electrode on an automobile steering wheel according to claim 1, wherein the flexible electrode (5) is silver-plated copper wires, the silver-plated copper wires are sewn on the leather layer (4) in a double strand twisting mode, and the routing pattern of the flexible electrode (5) is wave-shaped, spiral or sewn along the radian routing of the steering wheel.
  4. 4. The ECG acquisition electrode on an automobile steering wheel according to claim 1, wherein the connection position of the conductive matrix (3) and the flexible wire is fixed by adopting a welding process, and insulating silica gel is coated on the connection position of the conductive matrix (3) and the flexible wire and the outer layer of the flexible wire.
  5. 5. An ECG-collecting electrode on a steering wheel of a motor vehicle according to claim 1, characterized in that the sewn region of the flexible electrode (5) is a grip region of the steering wheel and the wiring pitch is uniform.
  6. 6. An ECG-pickup electrode for an automotive steering wheel according to claim 1, characterized in that the flexible electrode (5) is replaced by a gold-plated nickel wire electrode.
  7. 7. The ECG acquisition electrode on an automobile steering wheel according to claim 1, wherein the insulating substrate (2) is fixed with the metal framework in an adhesive mode, the insulating substrate (2) completely covers a metal framework area corresponding to a steering wheel holding area, and the insulating substrate (2) is made of polyurethane.

Description

ECG collecting electrode on automobile steering wheel Technical Field The invention relates to the technical field of ECG (electrocardiogram) acquisition, in particular to an ECG acquisition electrode on an automobile steering wheel. Background Along with the development of the intelligent and health monitoring technology of the automobile, the vehicle-mounted ECG monitoring system becomes an important research direction in the field of automobile electronics, can detect abnormal heart rate and other physiological states of a driver in real time and provide important guarantee for driving safety, and the ECG acquisition electrode is used as a core component of the vehicle-mounted ECG monitoring system, and the acquisition performance of the ECG acquisition electrode directly determines the accuracy and the practicability of a monitoring result. At present, a vehicle-mounted ECG acquisition electrode is mainly arranged in a holding area of an automobile steering wheel, the most common scheme in the prior art is an embedded metal electrode scheme, the scheme is that a groove is formed in the holding area of the steering wheel, a circular metal electrode is embedded into the groove, and ECG signal acquisition is realized through contact between a driver hand and the metal electrode. The scheme has the defects that firstly, the hardness difference between a metal electrode and the leather of the steering wheel is large, a driver can feel local hard blocks, indentation is easy to generate when holding, holding comfort is poor, secondly, the position of the metal electrode is fixed, signal acquisition can be triggered only when the driver adopts a specific holding gesture, signal interruption can occur when the holding gesture is deviated, the stability of signal acquisition is poor, thirdly, the scheme needs to precisely grooving the steering wheel, and the processing and assembling cost of the metal electrode is high, so that the whole manufacturing cost is not very good. In addition, in the prior art, some schemes adopt conductive leather as an ECG acquisition electrode, although the holding fitting performance can be improved to a certain extent, the cost of raw materials of the conductive leather is high, abrasion is easy to occur in the long-term use process, the conductivity is reduced, the service life of the electrode is short, and the reliability is insufficient. In summary, the existing automobile steering wheel ECG acquisition electrode has the technical problems of poor holding comfort, unstable signal acquisition, high cost and low reliability, and cannot meet the actual use requirement of the vehicle-mounted ECG monitoring system, so that a new technical scheme is needed to be provided for solving the problems. Disclosure of Invention The invention aims to provide an ECG acquisition electrode on an automobile steering wheel, so as to solve the problems in the background art. In order to achieve the aim, the invention provides the technical scheme that the ECG acquisition electrode on the automobile steering wheel comprises a steering wheel body, wherein the steering wheel body comprises a metal framework and a leather layer coated on the outer side of the metal framework, The outermost layer of the leather layer is sewed with a flexible electrode; an insulating substrate is arranged between the metal framework and the silver-plated copper wire electrode; the tail end of the flexible electrode is connected with a conductive matrix, the conductive matrix is connected with the ECG signal processing module through a flexible wire, and the flexible wire penetrates through the steering wheel body. Further to this solution, the wire diameter of the flexible electrode is 0.1-0.3mm, and disconnection does not occur at the beginning and end of the flexible electrode. In this scheme, the flexible electrode is silver-plated copper wire, silver-plated copper wire adopts the mode of strand stranding to sew up on the leather layer, and the line pattern of flexible electrode is wave, spiral or along steering wheel radian line sewing. In this scheme, the connection position of the conductive matrix and the flexible wire is fixed by a welding process, and the connection position of the conductive matrix and the flexible wire and the outer layer of the flexible wire are coated with insulating silica gel. With this solution, the sewn region of the flexible electrode is the grip region of the steering wheel, and the wiring is uniform. Still further with respect to this solution, the flexible electrode is replaced by a gold-plated nickel wire electrode. In this scheme, the insulating base is fixed with the metal skeleton through the bonding mode, and the insulating base covers the metal skeleton region that the steering wheel held the district corresponds completely, the insulating base is polyurethane material. Compared with the prior art, the invention has the beneficial effects that: The ECG collecting electrode on t