TWM528155U - Insert earphone with optical detecting heart rate function - Google Patents

Description

In-ear optical heart rate headphones

The present invention relates to an earphone, and more particularly to an in-ear optical heart rate earphone.

Monitoring physiological signals during exercise is the key demand of athletes. The most important and most valuable indicator in physiological signals is the heart beat frequency. Therefore, monitoring the heartbeat frequency signal is a representative of today's wearable physiological signal side devices. The function.

The wearable physiological signal side device is mainly based on the quantity side of the electric signal, but the structure of the electric quantity side device is complicated, the wearing is complicated, and the user cannot be detected at any time.

The wearable physiological signal measuring device based on optical signal measurement solves the above problem. At present, the wearable physiological signal side devices mainly based on optical signal measurement are mostly in-ear optical heart rate earphones, and the optical sensor and the earphone are combined to not only listen to music but also monitor heartbeat signals. At present, the earphones measured by the telecommunication number mostly measure the structure of the outer ear, the optical sensor is located at the lower edge of the ear, the measuring signal is only the surface layer of the skin, the skin of the human ear is thin, and the external environment light source is easy to penetrate, so the optical signal is easy Interfered with ambient light sources, resulting in inaccurate measurements. Therefore, whether the above problems can be solved by designing new earphones has become an important issue that this business person wants to solve, so it is necessary to propose a design that is reasonable in design and effective in improving the above problems.

The purpose of this creation is to provide an in-ear optical heart rate earphone that is more accurate in measuring heart rate signals in view of the drawbacks and deficiencies of the prior art.

To achieve the above object, the present invention provides an in-ear optical heart rate earphone comprising a front casing, a circuit board assembly, a rear casing and a light pipe. The front outer casing extends forward to form a tubular sound guiding tube, and the front end edge of the sound guiding tube is recessed rearward to form at least one transparent groove. The circuit board assembly comprises a fixing component, a circuit board, a speaker and at least An optical sensor, a sound guiding hole is formed in the middle of the fixing member, and the circuit board includes a fixing portion, a connecting portion connected to the rear end edge of the fixing portion, and a mounting portion connected to the connecting portion. The fixing portion covers the fixing member, the horn is mounted on the mounting portion of the circuit board and the horn faces the sound guiding hole of the fixing member, and the optical sensor is fixed to the fixing portion of the circuit board corresponding to the transparent groove of the front housing a rear cover covering the rear end of the front casing, the light pipe comprises a circular pipe bottom, and the bottom of the light pipe has a guiding sound corresponding to the sound guiding hole of the fixing component of the circuit board assembly The bottom of the tube of the light guide tube protrudes rearwardly from the light-transmissive groove of the front outer casing to form at least one light-transmitting sheet, and the light-guiding tube is installed outside the sound-guiding tube of the front outer casing, and the light-transmitting tube is transparent to the light-transmitting tube. The piece is correspondingly engaged in the light-transmitting groove of the front outer casing.

As described above, the optical sensor of the in-ear optical heart rate earphone circuit board assembly is placed at the inner ear, and the inner ear signal is measured by the optical sensor through the light transmissive sheet of the light guide tube, thereby measuring a more accurate heart rate signal. .

100‧‧‧In-ear optical heart rate earphones 10‧‧‧ Front outer casing 11‧‧‧Conductor tube 12‧‧‧Light transmission slot 13‧‧‧Clamping block 20‧‧‧Circuit board assembly 21‧‧‧Fixed part 211 ‧‧‧Guide hole 212‧‧‧Knitting slot 22‧‧‧Circuit board 221‧‧‧Fixed part 222‧‧‧Connection part 223‧‧‧Installation part 224‧‧‧ slotted 23‧‧‧ horn 24‧ ‧‧Optical sensor 30‧‧‧After casing 40‧‧‧Light pipe 41‧‧‧Bottom 42‧‧‧Guide sound port 43‧‧‧Transparent film

The first figure is a perspective view of one embodiment of the present in-ear optical heart rate earphone.
The second figure is an exploded perspective view of the in-ear optical heart rate earphone shown in the first figure.
The third figure is a perspective view of the circuit board assembly of the in-ear optical heart rate earphone shown in the first figure.
The fourth figure is a schematic diagram of the in-ear optical heart rate earphone shown in the first figure with the light pipe removed.

To clarify the technical content, structural features, objectives, and effects of the present invention, the embodiments are described in detail below with reference to the drawings.

Referring to the first to fourth figures, the inventive in-ear optical heart rate earphone 100 includes a front outer casing 10, a circuit board assembly 20, a rear outer casing 30 and a light guide 40.

Referring to the second figure, the front outer casing 10 extends forward to form a tubular sound guiding tube 11. The front end edge of the sound guiding tube 11 is recessed rearward to form at least one light transmissive groove 12. The inner wall of the sound guiding tube 11 protrudes inwardly to form at least one holding block 13 , and the holding block 13 extends in a strip shape.

Referring to the second figure, the circuit board assembly 20 includes a triangular prism-shaped fixing member 21, a circuit board 22, a speaker 23 and at least one optical sensor 24.

Referring to the second to fourth figures, a sound guiding hole 211 is formed in the middle of the fixing member 21 . The fixing member has a triangular column shape. The fixing member 21 is recessed with a locking groove 212 extending forward and backward corresponding to the holding block 13 of the front outer casing 10 .

The circuit board 22 includes a fixing portion 221 , a connecting portion 222 connected to the rear end edge of the fixing portion 221 , and a mounting portion 223 connected to the connecting portion 222 . The fixing portion 221 is formed in a hollow column shape corresponding to the outer shape of the fixing member 21, and the fixing portion 221 is provided with a slot 224 extending forward and backward corresponding to the locking groove 212 of the fixing member 21, and the fixing portion 221 covers the fixing member 21, and is opened. The slot 224 is aligned with the catching slot 212. The horn 23 is mounted on the mounting portion 223 of the circuit board 22 and the horn 23 faces the sound guiding hole 211 of the fixing member 21. The optical sensor 24 is fixed to the outer surface of the fixing portion 221 of the circuit board 22 corresponding to the transparent slot 12 of the front housing 10 .

The circuit board assembly 20 is mounted within the front housing 10. The fixing member 21 is disposed in the sound guiding tube 11, and the holding block 13 of the sound guiding tube 11 of the front housing 10 is engaged in the holding groove 212 of the fixing member 21 of the circuit board assembly 20, the optical sensor 24 is correspondingly installed at the light transmission groove 12.

Referring to the first figure, the rear casing 30 is covered at the rear end of the front casing 10, and the circuit board assembly 20 is covered therein.

Referring to the first and second figures, the light guide tube 40 includes a circular tube bottom 41 having a diameter that coincides with the diameter of the sound tube 11 of the front outer casing 10. The tube bottom 41 of the light guide tube 40 defines a sound guiding port 42 corresponding to the sound guiding hole 211 of the fixing member 21 of the circuit board assembly 20. The tube bottom 41 of the light guide tube 40 protrudes rearwardly from the light-transmitting groove 12 of the front outer casing 10 to form at least one light-transmitting sheet 43.

The light pipe 40 is mounted outside the sound guiding tube 11 of the front outer casing 10. The light-transmitting sheet 43 of the light guide tube 40 is correspondingly engaged in the light-transmitting groove 12 of the front outer casing 10.

When the in-ear optical heart rate earphone 100 is used, the light pipe 40 and the sound tube 11 of the front casing 10 are inserted into the inner ear, and the optical sensor 24 of the circuit board assembly 20 is correspondingly placed at the inner ear, by optical sense. The detector 24 measures the optical signal at the inner ear through the light transmissive sheet 43 of the light guide tube 40, thereby measuring a more accurate heart rate signal.

In this embodiment, the circuit board assembly 20 further includes a Bluetooth module (not shown), by which the Bluetooth sensor can transmit the signal detected by the optical sensor 24 to an external device for real-time operation. Monitoring can also transmit the signal of the external device to the user, so that the user can answer the phone or listen to music.

As described above, the optical sensor 24 of the in-ear optical heart rate earphone 100 circuit board assembly 20 is placed at the inner ear, and the inner ear signal is measured by the optical sensor 24 through the light transmissive sheet 43 of the light guide tube 40. Have a more accurate heart rate signal.

100‧‧‧In-ear optical heart rate headphones

10‧‧‧ front casing

11‧‧‧The sound tube

12‧‧‧Lighting trough

13‧‧‧Card block

20‧‧‧Circuit board components

21‧‧‧Fixed parts

211‧‧‧Guide hole

212‧‧‧ card slot

22‧‧‧ Circuit board

221‧‧‧ Fixed Department

222‧‧‧Connecting Department

223‧‧‧Installation Department

224‧‧‧ slotting

23‧‧‧ Horn

24‧‧‧ Optical Sensor

30‧‧‧ rear casing

40‧‧‧Light pipe

41‧‧‧Bottom

42‧‧‧Guideway

43‧‧‧Transparent film

Claims (5)

An in-ear optical heart rate earphone comprising:
a front outer casing, the front outer casing extends forward to form a tubular sound guiding tube, and the front end edge of the sound guiding tube is recessed rearward to form at least one light transmitting groove;
A circuit board assembly includes a fixing member, a circuit board, a speaker and at least one optical sensor. The middle portion of the fixing member defines a sound guiding hole extending through the front and the rear. The circuit board includes a fixing portion, a fixing portion and a fixing portion. a connecting portion connected to the rear end edge and a mounting portion connected to the connecting portion, the fixing portion covers the fixing member, the horn is mounted on the mounting portion of the circuit board and the horn faces the sound guiding hole of the fixing member, the optical The light transmissive groove of the sensor corresponding to the front outer casing is fixed on the outer surface of the fixing portion of the circuit board;
a rear housing covering the rear end of the front housing; and a light guide tube including a circular tube bottom, the bottom of the light guiding tube is provided with a sound guiding port corresponding to the sound guiding hole of the fixing member of the circuit board assembly The bottom of the tube of the light guide tube protrudes rearwardly from the light-transmissive groove of the front outer casing to form at least one light-transmitting sheet, and the light-guiding tube is installed outside the sound-guiding tube of the front outer casing, and the light-transmitting sheet of the light-guiding tube Correspondingly engaged in the transparent groove of the front outer casing. The in-ear optical heart rate earphone according to claim 1, wherein the inner wall of the sound tube of the front outer casing protrudes inwardly to form at least one holding block, and the holding block extends in a strip shape. The fixing member of the circuit board assembly is correspondingly provided with a locking groove extending forward and backward corresponding to the holding block of the front outer casing, and the holding block of the sound guiding tube of the front outer casing is engaged in the holding groove of the fixing component of the circuit board assembly . The in-ear optical heart rate earphone according to the second aspect of the invention, wherein the fixing portion of the circuit board of the circuit board assembly forms a hollow column shape corresponding to the shape of the fixing member, and the fixing portion corresponds to the holding groove of the fixing member. A slot extending forward and backward is provided, and the slot is aligned with the retaining slot. The in-ear optical heart rate earphone of claim 1, wherein the fixing member has a triangular column shape. The in-ear optical heart rate earphone of claim 1, wherein the diameter of the tube bottom coincides with the diameter of the sound tube of the front outer casing.