A circuit stack structure of an ear-hanging earphone

By employing a vertically stacked acoustic unit and circuit unit and a single circuit board structure in ear-hook headphones, the problems of complexity and space constraints of existing headphone circuit boards are solved, achieving better sound quality and cost control, and promoting the miniaturization design of headphones.

CN224385638UActive Publication Date: 2026-06-19DONGGUAN HELE ELECTRONICS

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
DONGGUAN HELE ELECTRONICS
Filing Date
2025-04-30
Publication Date
2026-06-19

AI Technical Summary

Technical Problem

The existing open-back headphones have complex circuit board structures, which lead to space constraints, high costs, and reduced quality and performance. A simplified design is needed to reduce complexity and cost.

Method used

The acoustic and circuit units are stacked vertically with gaps, using a single circuit board structure and forming a dual-cavity structure through a basket and bracket to enhance sound quality and reduce magnetic field interference.

Benefits of technology

This effectively reduces the magnetic field interference of the circuit unit to the acoustic unit, improves the sound quality and performance of the headphones, and reduces production costs, while promoting the miniaturization of the core mechanism.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224385638U_ABST
    Figure CN224385638U_ABST
Patent Text Reader

Abstract

The utility model discloses a kind of circuit stacking structures of ear hanging earphone, it includes: machine core part;The machine core part is provided with acoustic unit and circuit unit in it, machine core part is formed for accommodating the cavity of circuit unit of acoustic unit by the base and cover plate of mutual fixed connection, the acoustic unit of circuit unit is longitudinally arranged and distributed in cavity, and acoustic unit includes: basin frame, support, diaphragm, voice coil and magnet.The utility model distributes acoustic unit and circuit unit in cavity using longitudinal superposition mode, single circuit board structure is more advantageous whether in quality performance or cost control.The utility model in the prior art, acoustic unit forms double sound cavity structure by basin frame and support, can effectively strengthen the tone quality of acoustic unit, reduce the noise when acoustic unit works.The utility model makes full use of machine core inner space, is conducive to the miniaturization design of machine core part.
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Description

Technical fields:

[0001] This utility model relates to the technical field of headphone products, and specifically to a circuit stacking structure for an ear-hook headphone. Background technology:

[0002] Open-back headphones differ from in-ear headphones in that their sound-emitting holes are located outside the ear canal, unlike in-ear headphones which need to be inserted into the ear canal. When using open-back headphones, you can hear both the headphone's audio and ambient sounds. Because of this, open-back headphones are particularly suitable for outdoor use.

[0003] For ease of wear, open-back headphones typically employ an ear-hook design, consisting of a main body and an ear hook. The ear hook suspends the headphones over the ear, allowing the main body to fit snugly against the ear's surface. Ear-hook headphones primarily rely on the ear hook to suspend the headphones from the auricle. To conform to the shape of the human ear, the ear hook is usually designed in the shape of the helix, exhibiting a curved shape. Once the ear hook is suspended on the auricle, the inner side of the main body rests against the outer surface of the auricle, and the clamping force between the ear hook and the main body secures the headphones to the ear.

[0004] In current open-back headphones, the acoustic unit and circuit unit are built into the core, and the battery unit is built into the ear hook. For example, Chinese utility model patent application CN222215927U discloses an ear hook headphone, which includes: a speaker unit, a circuit board compartment, a first circuit board, a second circuit board and a connector, at least one button, a charging component, an ear hook, a battery and wires, wherein the first circuit board is electrically connected to and from the second circuit board.

[0005] However, this existing structure still has the following shortcomings:

[0006] Because the speaker unit, the first circuit board, and the second circuit board are all housed within the circuit board compartment, the space inside the compartment is extremely limited. Furthermore, the dual-circuit board design requires more materials and more complex manufacturing processes. Production necessitates complex circuit layouts and through-hole processes to ensure proper circuit board operation; these additional steps and time contribute to increased costs. In addition, more design and manufacturing details are required, such as equalization circuit layout, signal isolation zones, and power distribution. These design complexities not only increase the workload for designers but may also affect the quality and performance of the circuit boards.

[0007] In view of the above, the inventors propose the following technical solution. Utility model content:

[0008] The purpose of this invention is to overcome the shortcomings of the prior art and provide a circuit stacking structure for ear-hook headphones.

[0009] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: a circuit stacking structure for an ear-hook headphone, comprising: a core part; the core part is provided with an acoustic unit and a circuit unit, the core part forms a cavity for accommodating the circuit unit of the acoustic unit through a base and a cover plate that are fixedly connected to each other, the acoustic units of the circuit unit are arranged longitudinally in the cavity, and the acoustic unit includes: a frame, a support on the frame, a diaphragm disposed between the frame and the support, a voice coil for driving the diaphragm to vibrate, and a magnet movably disposed in the voice coil.

[0010] Furthermore, in the above technical solution, the circuit unit includes: a horizontally distributed circuit board and a first charging electrode and a second charging electrode disposed on the circuit board for charging the earphone.

[0011] Furthermore, in the above technical solution, the circuit board is provided with a first positioning post and a second positioning post, and correspondingly, the base is provided with a first positioning hole and a second positioning hole; the first charging electrode is disposed at the end of the first positioning post and protrudes outward from the first positioning hole, and the second charging electrode is disposed at the end of the second positioning post and protrudes outward from the second positioning hole.

[0012] Furthermore, in the above technical solution, the support has a recessed first acoustic cavity for enhancing sound quality; the basket frame has a second acoustic cavity for enhancing sound quality.

[0013] Furthermore, in the above technical solution, the circuit board is equipped with a microphone for receiving and processing external sounds.

[0014] Furthermore, in the above technical solution, the base is formed with an annular stepped groove for placing the acoustic unit; the bottom surface of the base is provided with a sound outlet hole for the acoustic unit to emit sound outwards, and the two sides of the base are respectively provided with a first tuning hole and a second tuning hole for maintaining air circulation; the base is provided with a connection hole for connecting with the ear hook, and the base is also provided with a wire hole for the first wire of the ear hook to pass through.

[0015] Furthermore, in the above technical solution, the ear hook includes a connecting section for connecting with the movement and a battery compartment containing a battery unit.

[0016] Furthermore, in the above technical solution, the cover plate is provided with a touch panel assembly for touch control by human hand. The touch panel assembly includes a touch panel disposed on the cover plate for touch by human hand, a sensor attached to the touch panel for detecting touch action on the touch panel, and a control chip for controlling the output signal of the sensor.

[0017] Furthermore, in the above technical solution, the cover plate has a first mounting slot for placing the control chip, and the cover plate has a first through hole at one end of the first mounting slot for electrically connecting the control chip and the circuit unit; the cover plate also has a second mounting slot for placing the sensor.

[0018] Furthermore, in the above technical solution, the cover plate has a first pickup hole and a second pickup hole on both sides for allowing external sound to enter. Correspondingly, the inner wall of the cover plate is also formed with a first pickup channel and a second pickup channel for allowing external sound to enter the microphone.

[0019] Furthermore, in the above technical solution, a magnet is provided inside the movement part; and a slot for installing the magnet is provided on the base.

[0020] After adopting the above technical solution, this utility model has the following beneficial effects compared with the prior art: In this utility model, the acoustic unit and the circuit unit are distributed in the cavity in a vertically stacked manner, with a gap between them. The circuit unit does not intrude into the space where the acoustic unit is located, effectively reducing the mutual interference of magnetic fields between the two. Furthermore, the single circuit board structure has advantages in both quality performance and cost control. In addition, compared with the existing structure, in this utility model, the acoustic unit forms a dual-cavity structure through the frame and support, which can effectively enhance the sound quality of the acoustic unit and reduce the noise when the acoustic unit is working. This utility model makes full use of the internal space of the mechanism, which is conducive to the miniaturization design of the mechanism. Attached image description:

[0021] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0022] Figure 2 This is a schematic diagram of the mechanism of this utility model;

[0023] Figure 3 yes Figure 2 Cross-sectional view at point A;

[0024] Figure 4 yes Figure 3 An enlarged view at point B;

[0025] Figure 5This is an exploded structural diagram of the present invention;

[0026] Figure 6 This is an exploded structural diagram of the acoustic unit in this utility model;

[0027] Figure 7 This is a schematic diagram of the base structure in this utility model;

[0028] Figure 8 This is a schematic diagram of the cover plate in this utility model;

[0029] Figure 9 This is a structural schematic diagram of the cover plate in this utility model from another perspective. Detailed implementation method:

[0030] The present invention will be further described below with reference to specific embodiments and accompanying drawings.

[0031] See Figures 1 to 9 The diagram shows a circuit stacking structure for an ear-hook headphone, comprising: a core section 1; the core section 1 houses an acoustic unit 11 and a circuit unit 12, the core section 1 forming a cavity for accommodating the acoustic unit 11 and the circuit unit 12 via a base 3 and a cover plate 4 fixedly connected to each other, characterized in that...

[0032] The acoustic units 11 of the circuit unit 12 are arranged longitudinally in the cavity, and the acoustic unit 11 includes: a frame 111, a support 112 disposed on the frame 111, a diaphragm 113 disposed between the frame 111 and the support 112, a voice coil 114 for driving the diaphragm 113 to vibrate, and a magnet 115 movably disposed in the voice coil 114.

[0033] In this invention, the acoustic unit 11 and the circuit unit 12 are arranged vertically in a stacked manner within the cavity, with a gap between them. This prevents the circuit unit 12 from encroaching on the space occupied by the acoustic unit 11, effectively reducing magnetic field interference between the two. Furthermore, the single-circuit board structure offers advantages in both quality performance and cost control. In addition, compared to existing structures, in this invention, the acoustic unit 11 forms a dual-cavity structure through the frame 111 and the support 112, effectively enhancing the sound quality of the acoustic unit 11 and reducing noise during operation. This invention fully utilizes the internal space of the mechanism, facilitating the miniaturization design of the mechanism section 1.

[0034] In this implementation, the circuit unit 12 uses a horizontally arranged circuit board 121, with a gap between the circuit board 121 and the acoustic unit 11 to prevent mutual interference. This horizontally arranged single-circuit board structure replaces the traditional double-circuit board structure, effectively enhancing performance. Specifically, the circuit unit 12 includes: a horizontally distributed circuit board 121 and a first charging electrode 123 and a second charging electrode 124 disposed on the circuit board 121 for charging the earphones. The circuit board 121 has a first positioning post 1201 and a second positioning post 1202; correspondingly, the base 3 has a first positioning hole 301 and a second positioning hole 302. The first charging electrode 123 is located at the end of the first positioning post 1201 and protrudes outward from the first positioning hole 301, while the second charging electrode 124 is located at the end of the second positioning post 1202 and protrudes outward from the second positioning hole 302. Here, by placing the first charging electrode 123 and the second charging electrode 124 at the lower ends of the first positioning post 1201 and the second positioning post 1202 respectively, and exposing them outward, space is reasonably saved.

[0035] The support 112 has a recessed first acoustic cavity 117 for enhancing sound quality; the frame 111 has a second acoustic cavity 118 for enhancing sound quality. Here, the dual-cavity structure formed by the first acoustic cavity 117 and the second acoustic cavity 118 can effectively enhance the sound quality of the acoustic unit 11 and reduce the noise when the acoustic unit 11 is working.

[0036] The base 3 has an annular stepped groove 31 for placing the acoustic unit 11. A sound outlet 32 ​​for the acoustic unit 11 to emit sound is provided through the bottom surface of the base 3. A first tuning hole 33 and a second tuning hole 34 for maintaining airflow are also provided on both sides of the base 3. A connection hole 35 for connecting to the ear hook 2 is provided on the base 3, and a wire hole 36 for the first wire 211 of the ear hook 2 to pass through. Here, the sound outlet 32 ​​is located on the bottom surface of the base 3, aligning perfectly with the ear canal when worn. Furthermore, the first tuning hole 33 and the second tuning hole 34 are located on both sides of the base 3, allowing external air to flow freely within the mechanism 1, preventing pressure buildup, and thus adjusting the sound quality to produce better sound quality and bass response.

[0037] The ear hook part 2 includes a connecting section 21 for connecting with the movement part 1 and a battery compartment 22 with a built-in battery unit.

[0038] The cover plate 4 is provided with a touchpad assembly 6 for touch control by human hand. The touchpad assembly 6 includes a touch panel 61 disposed on the cover plate 4 for human hand touch, a sensor 62 attached to the touch panel 61 for detecting touch actions on the touch panel 61, and a control chip 64 for controlling the output signal of the sensor 62. The cover plate 4 has a first mounting slot 41 for placing the control chip 64, and a first through hole 43 penetrating one end of the first mounting slot 41 for electrical connection between the control chip 64 and the circuit unit 12. The cover plate 4 also has a second mounting slot 42 for placing the sensor 62. Here, the sensor 62 detects the user's touch operation, and the control chip 64 processes these touch signals and transmits the processed signals to the circuit unit 12 for further processing to achieve the corresponding function.

[0039] The circuit board 121 is equipped with a microphone 5 for receiving and processing external sound. The cover plate 4 has a first pickup hole 45 and a second pickup hole 46 on each side for external sound to enter. Correspondingly, the inner wall of the cover plate 4 is also formed with a first pickup channel 47 and a second pickup channel 48 for transmitting external sound to the microphone 5. Here, the first pickup hole 45 and the second pickup hole 46 are located on both sides of the cover plate 4 and are used to collect external sound (such as conversation sounds). The external sound is transmitted into the earphone through the first pickup channel 47 and the second pickup channel 48, and processed by the microphone 5, converting the sound signal into an electrical signal and transmitting it to the circuit unit 12 for further processing.

[0040] A magnet 7 is provided inside the core 1; a slot 37 for mounting the magnet 7 is provided on the base 3. The magnet 7 is for easy alignment during charging. A magnetic component corresponding to the magnet 7 is provided in the charging case of the earphones, and the earphones and charging case are positioned and engaged through magnetic attraction.

[0041] In summary, in this invention, the acoustic unit 11 and the circuit unit 12 are arranged vertically in a stacked manner within the cavity, with a gap between them. This prevents the circuit unit 12 from encroaching on the space occupied by the acoustic unit 11, effectively reducing magnetic field interference between the two. Furthermore, the single-circuit board structure offers advantages in both quality performance and cost control. In addition, compared to existing structures, in this invention, the acoustic unit 11 forms a dual-cavity structure through the frame 111 and the support 112, effectively enhancing the sound quality of the acoustic unit 11 and reducing noise during operation. This invention fully utilizes the internal space of the mechanism, facilitating the miniaturization design of the mechanism section 1.

[0042] Of course, the above description is only a specific embodiment of the present utility model and is not intended to limit the scope of the present utility model. All equivalent changes or modifications made to the structure, features and principles described in the claims of the present utility model should be included in the scope of the claims of the present utility model.

Claims

1. A circuit stacking structure for an ear-hook headphone, comprising: The mechanism (1) contains an acoustic unit (11) and a circuit unit (12). The mechanism (1) forms a cavity for accommodating the acoustic unit (11) and the circuit unit (12) via a base (3) and a cover plate (4) that are fixedly connected to each other. The mechanism (1) is characterized by... The acoustic units (11) of the circuit unit (12) are arranged longitudinally in the cavity, and the acoustic unit (11) includes: a frame (111), a support (112) disposed on the frame (111), a diaphragm (113) disposed between the frame (111) and the support (112), a voice coil (114) for driving the diaphragm (113) to vibrate, and a magnet (115) movably disposed in the voice coil (114).

2. The circuit stacking structure of an ear-hook headphone according to claim 1, characterized in that: The circuit unit (12) includes: a horizontally distributed circuit board (121) and a first charging electrode (123) and a second charging electrode (124) disposed on the circuit board (121) for charging the earphone.

3. The circuit stacking structure of an ear-hook headphone according to claim 2, characterized in that: The circuit board (121) is provided with a first positioning post (1201) and a second positioning post (1202), and the base (3) is provided with a first positioning hole (301) and a second positioning hole (302); the first charging electrode (123) is located at the end of the first positioning post (1201) and protrudes outward from the first positioning hole (301), and the second charging electrode (124) is located at the end of the second positioning post (1202) and protrudes outward from the second positioning hole (302).

4. The circuit stacking structure of an ear-hook headphone according to claim 1, characterized in that: The support (112) has a recessed first sound cavity (117) for enhancing sound quality; the basket (111) has a second sound cavity (118) for enhancing sound quality.

5. The circuit stacking structure of an ear-hook headphone according to claim 2, characterized in that: The circuit board (121) is provided with a microphone (5) for receiving and processing external sounds.

6. The circuit stacking structure of an ear-hook headphone according to claim 5, characterized in that: The base (3) has an annular stepped groove (31) for placing the acoustic unit (11); the bottom surface of the base (3) has a sound outlet hole (32) for the acoustic unit (11) to emit sound outwards, and the base (3) also has a first tuning hole (33) and a second tuning hole (34) for maintaining air circulation on both sides; the base (3) has a connection hole (35) for connecting with the ear hook (2), and the base (3) also has a wire hole (36) for the first wire (211) of the ear hook (2) to pass through.

7. The circuit stacking structure of an ear-hook headphone according to claim 6, characterized in that: The ear hook part (2) includes a connecting section (21) for connecting with the movement part (1) and a battery compartment (22) with a built-in battery unit.

8. The circuit stacking structure of an ear-hook headphone according to claim 5, characterized in that: The cover plate (4) is provided with a touch panel assembly (6) for touch control by human hand. The touch panel assembly (6) includes a touch panel (61) disposed on the cover plate (4) for touch by human hand, a sensor (62) attached to the touch panel (61) for detecting touch action on the touch panel (61), and a control chip (64) for controlling the output signal of the sensor (62).

9. The circuit stacking structure of an ear-hook headphone according to claim 8, characterized in that: The cover plate (4) has a first mounting slot (41) for placing the control chip (64), and a first through hole (43) for electrically connecting the control chip (64) and the circuit unit (12) is provided through one end of the first mounting slot (41); the cover plate (4) also has a second mounting slot (42) for placing the sensor (62).

10. The circuit stacking structure of an ear-hook earphone according to any one of claims 6-9, characterized in that: The cover plate (4) has a first pickup hole (45) and a second pickup hole (46) on both sides for allowing external sound to enter. Correspondingly, the inner wall of the cover plate (4) is also formed with a first pickup channel (47) and a second pickup channel (48) for allowing external sound to enter the microphone (5). A magnet (7) is provided inside the core part (1). A slot (37) for installing the magnet (7) is provided on the base (3).