# US 12,225,347 B2 · Sound-producing device

> Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt

- Number: US 12,225,347 B2
- Document ID: US12225347B2
- Status: Granted
- Kind: B2
- Application number: 18/165,346
- Filed: 2023-02-07
- Published: 2023-06-15
- Granted: 2025-02-11
- Earliest claimed: 2020-12-29
- Assignees: Shenzhen Shokz Co., Ltd.
- Applicants: Shenzhen Shokz Co., Ltd.
- Inventors: Zhen Wang; Lei Zhang; Xin Qi
- Web page: https://patentgrep.com/patent/US12225347B2

## CPC

- H04R 1/40: by combining a number of identical transducers {(specially adapted for hearing aids H04R25/405)}
- G02C 11/06: Hearing aids (construction of electric hearing aids H04R25/00)
- H04R 1/023: {Screens for loudspeakers}
- H04R 1/1008: {Earpieces of the supra-aural or circum-aural type}
- H04R 1/1075: {Mountings of transducers in earphones or headphones}
- H04R 1/1091: {Details not provided for in groups H04R1/1008 - H04R1/1083}
- H04R 1/227: {using transducers reproducing the same frequency band}
- H04R 1/24: Structural combinations of separate transducers or of two parts of the same transducer and responsive respectively to two or more frequency ranges
- H04R 1/2846: {Vents, i.e. ports, e.g. shape thereof or tuning thereof with damping material}
- H04R 1/2884: {by means of the enclosure structure, i.e. strengthening or shape of the enclosure}
- H04R 1/345: {for loudspeakers}
- H04R 1/347: {for obtaining a phase-shift between the front and back acoustic wave}
- H04R 7/04: Plane diaphragms
- H04R 7/18: at the periphery
- H04R 9/025: {Magnetic circuit}
- H04R 9/06: Loudspeakers
- H04R 1/105: {Earpiece supports, e.g. ear hooks (for stereophonic headphones H04R5/0335)}
- H04R 1/2842: {for loudspeaker transducers}
- H04R 1/2849: {for loudspeaker transducers}
- H04R 1/403: {loud-speakers}
- H04R 5/0335: {Earpiece support, e.g. headbands or neckrests (for monophonic headphones H04R1/105)}
- H04R: LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS (producing sounds with frequency not determined by supply frequency G10K)
- G02C: SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES (trial frames for testing the eyes A61B3/04; goggles or eyeshields not having the same features as spectacles A61F9/00)

## Abstract

The present disclosure may provide a sound-producing device comprising a diaphragm and a housing. The housing may include a first sound guide hole and a second sound guide hole. The diaphragm may be disposed in the housing. When a user wears the sound-producing device, a distance between the first sound guide hole and the ear canal opening may be smaller than a distance between the diaphragm and the ear canal opening, a range of an included angle between a connection line between the first sound guide hole and the second sound guide hole and a connection line between the center of mass of the diaphragm and the ear canal opening may be smaller than 45°, and a distance between the second sound guide hole and the ear canal opening may be greater than the distance between the diaphragm and the ear canal opening.

## Claims

### Claim 1

A sound-producing device, comprising:
a diaphragm; and
a housing, wherein the housing includes a first sound guide hole and a second sound guide hole, the diaphragm is disposed in the housing, and the first sound guide hole and the second sound guide hole are respectively located on both sides of the diaphragm;
when a user wears the sound-producing device, a distance between the first sound guide hole and an ear canal opening of the user is smaller than a distance between the diaphragm and the ear canal opening of the user, an included angle between a connection line between the first sound guide hole and the second sound guide hole and a connection line between the center of mass of the diaphragm and the ear canal opening of the user is smaller than 45°, and a distance between the second sound guide hole and the ear canal opening of the user is greater than the distance between the diaphragm and the ear canal opening of the user.

### Claim 2 (depends on 1)

The sound-producing device of claim 1, wherein the distance between the first sound guide hole and the ear canal opening of the user is 0.5 cm-2.5 cm.

### Claim 3 (depends on 1)

The sound-producing device of claim 1, wherein the distance between the second sound guide hole and the ear canal opening of the user is 1.5 cm-5 cm.

### Claim 4 (depends on 1)

The sound-producing device of claim 1, wherein the distance between the diaphragm and the ear canal opening of the user is 1.5 cm-3 cm.

### Claim 5 (depends on 1)

The sound-producing device of claim 1, wherein a ratio of the distance between the diaphragm and the ear canal opening of the user to the distance between the first sound guide hole and the ear canal opening of the user is 1.4-3.

### Claim 6 (depends on 1)

The sound-producing device of claim 1, wherein a ratio of the distance between the second sound guide hole and the ear canal opening of the user to the distance between the first sound guide hole and the ear canal opening of the user is 1.4-5.

### Claim 7 (depends on 1)

The sound-producing device of claim 1, wherein the housing and the diaphragm form a first acoustic cavity for radiating sound, the first acoustic cavity and the first sound guide hole are acoustically coupled, the first sound guide hole includes a first hole part and a second hole part, the first hole part and the second hole part are connected, and the first hole part and the second hole part are located at different side walls of the housing corresponding to the first acoustic cavity.

### Claim 8 (depends on 7)

The sound-producing device of claim 7, wherein a length of the side wall where the first hole part is located is greater than a length of the side wall where the second hole part is located.

### Claim 9 (depends on 8)

The sound-producing device of claim 8, wherein a ratio of a length of the second hole part to the length of the side wall where the second hole part is located is ⅙-⅔.

### Claim 10 (depends on 1)

The sound-producing device of claim 1, further comprising a magnetic circuit structure, wherein the magnetic circuit structure is connected with the housing, the diaphragm is connected with the magnetic circuit structure through a voice coil, the housing and the magnetic circuit structure form a second acoustic cavity for radiating sound, the second acoustic cavity and the second sound guide hole are acoustically coupled, and the second sound guide hole is located on a side wall corresponding to the second acoustic cavity.

### Claim 11 (depends on 10)

The sound-producing device of claim 10, wherein the magnetic circuit structure of the sound-producing device includes a magnetic conductive cover, the magnetic conductive cover faces away from the diaphragm, a portion of the magnetic conductive cover is used as a side wall of the housing, and the second sound guide hole is located on the magnetic conductive cover.

### Claim 12 (depends on 1)

The sound-producing device of claim 1, wherein a ratio of a difference between an effective area of the second sound guide hole and an effective area of the first sound guide hole to the effective area of the first sound guide hole or the effective area of the second sound guide hole is smaller than or equal to 40%.

### Claim 13 (depends on 1)

The sound-producing device of claim 1, comprising a wearing component, wherein the wearing component includes a connecting segment and a concave segment connected with the connecting segment, the concave segment causes an upper edge of the wearing component to have a downward depression on the wearing component, and the housing is connected with the concave segment.

### Claim 14 (depends on 13)

The sound-producing device of claim 13, wherein the concave segment is configured to cause the concave segment close to an ear of the user when the user wears the wearing component, and the concave segment enables the first sound guide hole to be located near the ear of the user.

### Claim 15 (depends on 14)

The sound-producing device of claim 14, wherein the concave segment includes a mounting part and a transition part connected at an angle, the housing is arranged on the mounting part or the transition part, and the transition part and the mounting part are bent and connected with the connecting segment and extend downwards.

### Claim 16 (depends on 15)

The sound-producing device of claim 15, wherein the angle is 15°-150°.

### Claim 17 (depends on 15)

The sound-producing device of claim 15, wherein the connecting segment includes a first connecting segment, the transition part is connected between the mounting part and the first connecting segment, and the transition part is bent and connected with the first connecting segment and extends downwards.

### Claim 18 (depends on 17)

The sound-producing device of claim 17, wherein the connecting segment further includes a second connecting segment, and the second connecting segment is connected to one end of the mounting part.

### Claim 19 (depends on 13)

The sound-producing device of claim 13, wherein the first sound guide hole is disposed in at least one of an inner side of the concave segment facing the head of the user, an edge of the concave segment facing a tragus of the user, or a side surface of the concave segment facing the tragus of the user.

### Claim 20 (depends on 13)

The sound-producing device of claim 13, wherein the wearing component includes a left ear wearing part and a right ear wearing part which are respectively used to be erected on the left and right ears of the user.