Earphone end seat interface structure for equipment terminal connection

Abstract

The utility model belongs to the field of earphones, and particularly relates to an earphone end seat interface structure for equipment terminal connection, which comprises a shell with a built-in accommodating cavity, and a boss seat with an opening is formed at one end of the shell; the lead mechanism comprises a cable rack arranged in the containing cavity of the shell, a contact piece is formed on the end face, facing the boss base, of the cable rack, and the other end of the cable rack is connected with a cable penetrating through the shell; an earphone end seat is improved, the interface end seat adopts a double-interface board design, when the earphone end seat is connected with an equipment terminal, signal isolation and electromagnetic interference reduction are realized through partition wiring of a contact piece, a pin of the equipment terminal penetrates through a pin slot and then is connected with the contact piece 22, and an audio signal is stably transmitted to the earphone through a connecting structure; when the self-locking knob is rotated, the rotating rod drives the self-locking clamping piece to expand outwards and be clamped into the groove of the equipment terminal to form mechanical interlocking, and unlocking needs to reversely rotate the knob and apply axial tension to prevent the earphone end seat interface from being separated from the equipment terminal.

Description

Technical Field

[0001] This utility model relates to the field of headphones, specifically to a headphone terminal interface structure for connecting to a device terminal. Background Technology

[0002] The headphone jack interface mainly consists of two parts: the housing and the contact points. The housing is usually made of metal or plastic and serves to protect the internal circuitry and contact points. The housing typically has one or more openings for inserting the plug. The contact points are located inside the socket and are used to make contact with the plug's pins to transmit audio signals.

[0003] 1. The existing interface lacks a reliable locking mechanism, which can easily lead to poor contact or signal interruption under movement or external vibration. In addition, a single interface is greatly affected by interference, which affects audio quality.

[0004] 2. Poor contact stability between the plug and the pin slot; long-term plugging and unplugging can easily cause contact wear, leading to impedance fluctuations and sound quality degradation. Utility Model Content

[0005] (a) Purpose of the utility model

[0006] To address the technical problems existing in the background art, this utility model proposes a headphone socket interface structure for device terminal connection, which features stable interface, minimal damage from plugging and unplugging, and stable audio.

[0007] (II) Technical Solution

[0008] To solve the above technical problems, this utility model provides a headphone terminal interface structure for connecting device terminals, including a housing with a built-in cavity, and a boss seat with an opening formed at one end of the housing;

[0009] The lead wire mechanism includes a cable rack disposed within the cavity of the housing, the end face of the cable rack facing the boss seat having a contact piece formed thereon, and the other end being connected to a cable that passes through the housing;

[0010] The self-locking mechanism includes a self-locking knob, one end of which is formed with a rotating rod that penetrates the housing, and the lower part of the rotating rod is formed with an outwardly protruding self-locking clip;

[0011] The interface mechanism includes an interface end seat disposed between the housing and the cable. A centering platform is provided in the middle of the interface end seat. Interface plates with the same slot specifications as the boss seat are formed at both ends of the centering platform. Several pin slots are provided on the interface plates.

[0012] Preferably, the cable is fitted with a cable sheath that connects to the housing, and the cable sheath has anti-slip textures.

[0013] Preferably, the contact piece, the rotating rod, and the centering platform are coaxially arranged, and the rotating rod passes through the through hole in the middle of the boss seat.

[0014] Preferably, a gap is left between the interface end seat and the contact piece, and the protruding section of the centering platform is attached to the contact piece.

[0015] Preferably, the pin slots on the interface board are inverted conical structures that are wider at the top and narrower at the bottom.

[0016] Preferably, the pin slot has a pin that connects to the contact piece.

[0017] The above-mentioned technical solution of this utility model has the following beneficial technical effects:

[0018] 1. Improve the headphone connector. The interface connector adopts a dual interface board design. When connected to the device terminal, signal isolation is achieved through the partitioned wiring of the contact piece to reduce electromagnetic interference. The pins of the device terminal are connected to the contact piece after passing through the pin slot. The connection structure stably transmits audio signals to the headphones.

[0019] 2. When rotating the self-locking knob, the rotating rod drives the self-locking clip to expand outward and lock into the groove of the device terminal to form a mechanical interlock. To release the lock, the knob needs to be rotated in the opposite direction and an axial pulling force needs to be applied to prevent the headphone connector from detaching from the device terminal. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of this utility model;

[0021] Figure 2 This is a side view of the structure of this utility model;

[0022] Figure 3 This is a schematic diagram of the separation structure of this utility model;

[0023] Figure 4 This is a cross-sectional structural diagram of the present invention.

[0024] Figure label:

[0025] 11. Housing; 12. Boss seat; 13. Cable sheath; 21. Cable rack; 22. Cable; 23. Contact piece; 31. Self-locking knob; 32. Rotary rod; 33. Self-locking clip; 41. Interface end; 42. Centering platform; 43. Interface board; 44. Pin slot. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be understood that these descriptions are merely exemplary and not intended to limit the scope of this utility model. Furthermore, descriptions of well-known structures and technologies are omitted in the following description to avoid unnecessarily obscuring the concept of this utility model.

[0027] like Figure 1-4 As shown, the present invention proposes a headphone terminal interface structure for connecting device terminals, including a housing 11 with a built-in cavity, and a boss seat 12 with an opening formed at one end of the housing 11.

[0028] The lead wire mechanism includes a cable rack 21 disposed in the cavity of the housing 11. The end face of the cable rack 21 facing the boss seat 12 is formed with a contact piece 22, and the other end is connected to a cable 23 that passes through the housing 11.

[0029] The self-locking mechanism includes a self-locking knob 31, one end of which is formed with a rotating rod 32 that penetrates the housing 11, and the lower part of the rotating rod 32 is formed with an outwardly protruding self-locking clip 33.

[0030] The interface mechanism includes an interface end seat 41 disposed between the housing 11 and the cable 23. A centering platform 42 is disposed in the middle of the interface end seat 41. Interface plates 43 with the same slot specifications as the boss seat 12 are formed at both ends of the centering platform 42. Several pin slots 44 are provided on the interface plates 43.

[0031] It should be noted that the contact piece 22, the rotating rod 32 and the centering platform 42 are coaxially arranged. The rotating rod 32 passes through the through hole in the middle of the boss seat 12. During the process of the rotating rod 32 passing through the boss seat 12, the contact piece 22 and the centering platform 42 are fixed at the center position of the boss seat 12.

[0032] In this embodiment, the headphone socket is improved. The interface socket 41 adopts a dual interface board 43 design. The interface board 43 is divided into an analog signal board (left / right channel) and a digital signal board (power supply + data). When connected to the device terminal, signal isolation is achieved through the partitioned wiring of the contact piece 23, reducing electromagnetic interference so that the headphones can be used normally. The pins of the device terminal are connected to the contact piece 22 after passing through the pin slot 44, and the audio signal is stably transmitted to the headphones through the connection structure.

[0033] When the self-locking knob 31 is rotated, the rotating rod 32 causes the self-locking clip 33 to expand outward and lock into the groove of the device terminal to form a mechanical interlock. To release the lock, the knob needs to be rotated in the opposite direction and an axial pulling force needs to be applied to prevent the headphone connector from detaching from the device terminal.

[0034] To further protect the cable 23, a cable sheath 13 connected to the housing 11 is provided around the cable 23. The cable sheath 13 has anti-slip texture. The anti-slip texture is designed to prevent slipping when gripping the cable and to reduce damage to the cable 23 when bending it.

[0035] To facilitate heat dissipation at the contact assembly, a gap is left between the interface end 41 and the contact piece 22, and the protruding section of the centering platform 42 is attached to the contact piece 22. The centering platform 42 is always attached to the contact piece 22, establishing a conductive structure as an aid for audio signal transmission.

[0036] like Figure 4 As shown, the pin slot 44 on the interface board 43 has an inverted conical structure that is wider at the top and narrower at the bottom. When the pin is inserted into the pin slot 44, the pin is automatically guided and corrected to avoid poor contact caused by pin misalignment.

[0037] It should be understood that the specific embodiments described above are merely illustrative or explanatory of the principles of this utility model and do not constitute a limitation thereof. Therefore, any modifications, equivalent substitutions, improvements, etc., made without departing from the spirit and scope of this utility model should be included within its protection scope. Furthermore, the appended claims are intended to cover all variations and modifications falling within the scope and boundaries of the appended claims, or equivalent forms of such scope and boundaries.

Claims

1. An earphone terminal base interface structure for a device terminal connection, characterized by, The housing (11) includes a built-in cavity, and one end of the housing (11) is formed with an open boss (12). The lead wire mechanism includes a cable rack (21) disposed in the cavity of the housing (11), the end face of the cable rack (21) facing the boss (12) is formed with a contact piece (22), and the other end is connected to a cable (23) that passes through the housing (11). The self-locking mechanism includes a self-locking knob (31), one end of which is formed with a rotating rod (32) that penetrates the housing (11), and the lower part of the rotating rod (32) is formed with an outwardly protruding self-locking clip (33). The interface mechanism includes an interface end seat (41) disposed between the housing (11) and the cable (23). A centering platform (42) is provided in the middle of the interface end seat (41). Interface plates (43) with the same slot specifications as the boss seat (12) are formed at both ends of the centering platform (42). Several pin slots (44) are provided on the interface plates (43).

2. The earpiece base interface structure for a device terminal connection according to claim 1, wherein The cable (23) is fitted with a cable sheath (13) that connects to the housing (11) on its outer periphery, and the cable sheath (13) is provided with anti-slip texture.

3. The earpiece base interface structure for a device terminal connection according to claim 1, wherein The contact piece (22), the rotating rod (32) and the centering platform (42) are coaxially arranged, and the rotating rod (32) passes through the through hole in the middle of the boss seat (12).

4. The earpiece base interface structure for a device terminal connection according to claim 1, wherein A gap is left between the interface end cap (41) and the contact piece (22), and the protruding section of the centering platform (42) is attached to the contact piece (22).

5. The headphone connector interface structure for device terminal connection according to claim 1, characterized in that, The pin slot (44) on the interface board (43) has an inverted cone shape that is wider at the top and narrower at the bottom.

6. The earpiece base interface structure for a device terminal connection according to claim 1, wherein The pin slot (44) has a pin that connects to the contact piece (22) through it.

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