Durable earphone connector structure

Abstract

The utility model belongs to the technical field of earphone connection, and discloses a durable earphone connector structure, which comprises a connector structure, a female seat module and a male seat module, the female seat module comprises a female seat shell, a base is tightly embedded in the female seat shell, four groups of contact pins are arranged in the base, the four groups of contact pins are combined at equal intervals to form 4-pin contact pins, and the male seat module is connected with the female seat shell. A fool-proof groove is formed in one side in the female seat shell; compared with the prior art, the utility model has the following beneficial effects: through innovatively designing the female seat module and the male seat module, aiming at the problems of loose fixation, unit loss and poor contact caused by the elastic failure of the 2-pin female seat, the contact pin is stably hidden in the female seat shell in the equipment, and the elastic hidden danger is completely eradicated. Meanwhile, the problem that 2 pins are exposed and easy to break is solved, the elastic sheet which is easy to fail in elasticity is arranged on the side of the replaceable male socket main body, and a protective shell is arranged for protection. In addition, fool-proof grooves and protrusions are additionally arranged, so that the problem of polarity reversal is solved.

Description

Technical Field

[0001] This utility model belongs to the field of headphone connection technology, and specifically relates to a durable headphone connector structure. Background Technology

[0002] When using headphones and monitoring equipment, signal transmission stability and connection reliability are crucial. The commonly used MMCX connector is a miniature coaxial connector, typically with a circular design and a spring-loaded latch that supports 360-degree rotation. However, MMCX connectors have several drawbacks, primarily insufficient connection stability: MMCX connectors were historically used in high-frequency RF devices, and 360-degree rotation may result in a less secure connection, potentially leading to loosening or poor signal strength during use, especially in environments with vigorous activity or on stage. The spring-loaded latch may also experience metal fatigue over time, causing it to loosen, leading to headphone loss or poor contact. Furthermore, the very thin center pin of the MMCX connector is not suitable for frequent insertion and removal, potentially causing pin breakage and resulting in no sound or no audio output.

[0003] The 0.78mm two-pin connector is another common connector found in headphones and hearing aids. Its two-pin design relies on friction for fixation, making it prone to loosening over time, especially with repeated insertions and removals or in environments with vibration. Because the pins are exposed, they are easily broken by external forces, leaving pins inside the headphone jack and resulting in extremely high repair costs. Furthermore, the flush-mount type two-pin connector can be inserted in reverse, lacking a foolproof design. This can lead to phase and channel errors due to user error, affecting sound quality or causing equipment damage. Additionally, MMCX and 2-pin connectors typically only support left and right channel audio signal transmission. Transmitting only one audio signal at a time makes them unsuitable for complex environments.

[0004] In view of this, this application proposes a durable headphone connector structure to solve the above problems. Utility Model Content

[0005] To address the shortcomings of existing technologies, the purpose of this utility model is to provide a durable headphone connector structure. Through innovative design of the female and male connector modules, it addresses issues such as loose fixing, missing units, and poor contact caused by the elastic failure of the 2-pin female connector. The pins are securely fixed to the female connector housing within the device, eliminating the risk of elasticity problems. Simultaneously, it solves the problem of exposed 2-pin pins being prone to breakage by placing the easily broken spring contact on the replaceable male connector body side, and also includes a protective housing. Furthermore, the addition of a foolproof groove and protrusion solves the problem of polarity reversal, thus resolving the issues mentioned in the background art.

[0006] To achieve the above objectives, this application specifically adopts the following technical solution:

[0007] A durable headphone connector structure includes: a connector structure comprising a female connector module and a male connector module; the female connector module includes: a female connector housing, within which a base is tightly embedded, and four sets of pins are installed in the base, the four sets of pins being equally spaced to form a 4-pin connector; a foolproof groove is provided on one side of the interior of the female connector housing; the male connector module includes a male connector housing, within which a male connector body is disposed, and a protective shell is provided on one side of the male connector housing; a spring and an headphone cable are disposed within the protective shell; one side of the spring is connected to the male connector body via a detachable elastic clip, and the other side is connected to the headphone cable via a quick-plug terminal, enabling convenient replacement of the spring; a foolproof protrusion is provided on one side of the male connector housing, and the shape of the foolproof protrusion and the foolproof groove of the female connector housing are complementary and corresponding in position.

[0008] On stage monitoring headphones, the introduction of a 4-pin connector allows for the separation of accompaniment and vocals, enabling separate adjustment of their intensity for singers and musicians to monitor. Alternatively, noise-canceling and microphones can be incorporated to isolate stage interference or pick up audience sounds. On multi-driver high-fidelity headphones, the low, mid, and high frequency bands can be separated for more precise crossover tuning, or electronic crossovers can be used to enhance sound quality. Furthermore, the individual output of each channel can be adjusted for more personalized sound tuning.

[0009] As a preferred embodiment, the base is made of high-temperature resistant transparent high-temperature nylon and PEK material, which can withstand the instantaneous high temperature of 300-400 degrees Celsius required for welding. The base of the female connector module and the pin are connected by a tight connection process suitable for fixing the tensile coefficient of civilian headphones and monitoring headphones, ensuring that the pin is firmly fixed and the signal transmission is stable. It can also be separated by itself after being subjected to a certain tensile force, ensuring the personal safety of the user and the safety of the equipment.

[0010] In a preferred embodiment, the pin and male connector body are made of copper alloy, and the gold plating layer on their surface is 3 μm thick.

[0011] In a preferred embodiment, an adhesive ring is fixed to one side of the male seat shell, and the protective shell is glued to the adhesive ring.

[0012] In a preferred embodiment, a female sealing ring is installed on one side of the female housing and a male sealing ring is installed on one side of the male housing, which can seal the gap at the joint between the male housing and the female housing.

[0013] As a preferred embodiment, an anti-slip sleeve is installed on the outer side of the protective shell, and the anti-slip sleeve is made of silicone.

[0014] As a preferred embodiment, it also includes an anti-bending component, which consists of a spring sleeved on the outside of the headphone cable and a heat shrink tubing covering the spring, with the spring located at the part of the headphone cable extending out of the protective shell, thereby limiting excessive bending of the headphone cable.

[0015] In a preferred embodiment, a retaining ring is installed on one side of the heat shrink tubing, and the retaining ring is fixedly connected to the protective shell.

[0016] After adopting the above technical solution, the beneficial effects of this utility model are:

[0017] 1. By innovatively designing the female and male connector modules, this design optimizes the shortcomings of existing MMCX and 2-pin connectors. MMCX structures are complex, and the retaining springs are prone to metal fatigue and loosening. This design replaces this with a friction-based connection, eliminating the locking mechanism and retaining springs, thus reducing costs while improving durability and ease of use. Addressing issues such as loose fixing, missing units, and poor contact caused by the elastic failure of the 2-pin female connector, the pins are securely fixed to the female connector housing within the device, eliminating the risk of elasticity problems. Simultaneously, the issue of exposed 2-pin pins being prone to breakage is resolved by placing the easily broken spring clip on the replaceable male connector body side, further protected by a protective housing. Additionally, new anti-foolproof grooves and protrusions solve the problem of reverse polarity. Furthermore, eliminating screws, clips, and other locking components reduces costs and allows the headphone cable to automatically detach when pulled, ensuring personal and equipment safety and reducing malfunctions. Compared to commonly used self-locking, threaded connectors on the market (such as Lemo pins, which are large, complex, and unsuitable for headphones), this design not only reduces the size, making it suitable for headphones and monitoring equipment, but also lowers costs and reduces safety risks.

[0018] 2. By designing an anti-bending component, the spring can bend and compress when the headphone cable is bent, thus limiting excessive bending at the connection point of the headphone cable, which could lead to breakage or damage. In addition, a heat shrink tubing is provided on the outside of the spring, which can effectively cover the spring. From an aesthetic point of view, it conceals the metal material of the spring, making the headphone cable connection point more aesthetically pleasing. From a protective perspective, the covering provides dust and dirt protection, preventing dust and debris from entering the spring gaps and reducing the risk of the spring's elasticity being affected by foreign objects getting stuck. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the overall structure of a durable headphone connector according to the present invention.

[0021] Figure 2 This is a structural schematic diagram of a durable headphone connector structure according to this utility model from another perspective;

[0022] Figure 3 This is a schematic diagram of the female connector module in a durable headphone connector structure according to this utility model;

[0023] Figure 4 This is a schematic diagram of the spring mounting structure in a durable headphone connector structure according to the present invention.

[0024] Figure 5 This is a cross-sectional structural diagram of the male connector shell and the protective shell in a durable headphone connector structure according to this utility model.

[0025] In the diagram, 1. Female connector module; 11. Female connector shell; 12. Base; 13. Pin; 14. Female connector sealing ring; 15. Anti-foolproof groove; 2. Male connector module; 21. Male connector shell; 22. Male connector body; 23. Anti-foolproof protrusion; 24. Adhesive ring; 25. Male connector sealing ring; 26. Protective shell; 27. Anti-slip sleeve; 28. Spring; 3. Anti-bending component; 31. Fixing ring; 32. Heat shrink tubing; 33. Earphone cable; 34. Spring. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] like Figures 1 to 5 As shown: A durable headphone connector structure includes: a connector structure including a female connector module 1 and a male connector module 2. The female connector module 1 includes: a female connector housing 11, a base 12 tightly embedded in the female connector housing 11, and four sets of pins 13 installed in the base 12. The four sets of pins 13 are arranged at equal intervals to form a 4-pin connector. A foolproof groove 15 is provided on one side of the interior of the female connector housing 11. The male connector module 2 includes a male connector housing 21, a male connector body 22 provided in the male connector housing 21, a protective shell 26 provided on one side of the male connector housing 21, and a spring 28 and a headphone cable 33 provided in the protective shell 26. One side of the spring 28 is connected to the male connector body 22 through a detachable elastic clip, and the other side is connected to the headphone cable 33 through a quick-plug terminal, realizing convenient replacement of the spring 28. A foolproof protrusion 23 is provided on one side of the male connector housing 21, and the shape of the foolproof protrusion 23 is complementary to the foolproof groove 15 of the female connector housing 11, and their positions correspond.

[0028] On stage monitoring headphones, the introduction of a 4-pin connector allows for the separation of accompaniment and vocals, enabling separate adjustment of their intensity for singers and musicians to monitor. Alternatively, noise-canceling and microphones can be incorporated to isolate stage interference or pick up audience sounds. On multi-driver high-fidelity headphones, the low, mid, and high frequency bands can be separated for more precise crossover tuning, or electronic crossovers can be used to enhance sound quality. Furthermore, the individual output of each channel can be adjusted for more personalized sound tuning.

[0029] like Figures 1 to 3 As shown: The base 12 is made of high-temperature resistant transparent high-temperature nylon and PEK material, which can withstand the instantaneous high temperature of 300-400 degrees Celsius required for welding. The base 12 and the pin 13 of the female connector module 1 are connected by a tight connection process suitable for the fixed tensile coefficient of civilian headphones and monitoring headphones, which ensures that the pin 13 is firmly fixed and the signal transmission is stable. It can also be separated by itself after being subjected to a certain tensile force, ensuring the personal safety of the user and the safety of the equipment.

[0030] like Figures 1 to 3 As shown, pin 13 and the male connector body 22 are made of copper alloy with a 3μm thick gold plating. Copper alloy itself has excellent conductivity, ensuring stable and efficient audio signal transmission, reducing signal attenuation and distortion, and thus guaranteeing high-quality sound output from headphones and other audio devices. The gold plating has a smooth and uniform surface, allowing for good contact with other connecting components and reducing contact resistance. This helps reduce energy loss, improve signal transmission efficiency, and avoid problems such as noise and breakpoints caused by poor contact, enhancing the user experience of audio devices.

[0031] like Figures 1 to 2 As shown: An adhesive ring 24 is fixed to one side of the male seat shell 21, and the protective shell 26 is glued to the adhesive ring 24.

[0032] like Figures 1 to 3 As shown: A female sealing ring 14 is installed on one side of the female housing 11, and a male sealing ring 25 is installed on one side of the male housing 21, which can seal the gap at the joint between the male housing 21 and the female housing 11.

[0033] like Figures 1 to 3 As shown: The protective shell 26 is equipped with an anti-slip sleeve 27 on the outside. The anti-slip sleeve 27 is made of silicone and has good friction, so it is not easy to slip when picked up.

[0034] like Figure 1 , Figure 2 as well as Figure 4As shown: It also includes an anti-bending component 3, which consists of a spring 34 sleeved on the outside of the headphone cable 33 and a heat shrink tubing 32 covering the spring 34. The spring 34 is located at the part of the headphone cable 33 that extends out of the protective shell 26, thereby limiting the excessive bending of the headphone cable 33.

[0035] like Figures 1 to 2 As shown: A retaining ring 31 is installed on one side of the heat shrink tubing 32, and the retaining ring 31 is fixedly connected to the protective shell 26. When dust and debris fall from the outside, they are difficult to penetrate the heat shrink tubing 32 and enter the gap of the spring 34.

[0036] In practical use, the working principle of this utility model is as follows:

[0037] In actual use, we first install the female connector shell 11 inside the headphones or related audio equipment. After installing the female connector, we lift the protective shell 26 using the anti-slip sleeve 27, and slowly insert the male connector shell 21 into the female connector shell 11. As the insertion progresses, the anti-foolproof protrusion 23 on the male connector shell 21 smoothly enters the anti-foolproof groove 15 on the female connector shell 11. This anti-foolproof design eliminates the problem of polarity reversal caused by incorrect insertion, making the use process safer and more reliable. At the same time as the male connector module 2 and the female connector module 1 are connected, the four sets of pins 13 inside the female connector shell 11 will accurately enter the male connector body 22, thereby completing the circuit connection and ensuring stable transmission of audio signals. At the same time, the female sealing ring 14 installed on one side of the female housing 11 will fit tightly together with the male sealing ring 25 on one side of the male housing 21, thereby sealing the gap at the joint between the male and female seats, effectively blocking dust, moisture and other impurities, preventing them from entering the male body 22 or the interior of the female housing 11 through the gap, and avoiding malfunctions such as poor contact or short circuits caused by the intrusion of impurities.

[0038] Furthermore, a protective shell 26 is provided on one side of the male seat outer shell 21, and the protective shell 26 houses the spring clip 28 and the headphone cable 33. One side of the spring clip 28 is connected to the male seat body 22 by a detachable elastic clip. Under normal conditions, the connection is secure by the elasticity of the clip, and the clip provides separation space when disassembling. The other side is connected to the headphone cable 33 by a quick-plug terminal. The design allows for easy removal during disassembly, making the replacement of the spring 28 simple and convenient. If the spring 28 fails to maintain its elasticity, simply remove the adhesive ring 24 to quickly remove the old spring 28 and replace it with a new one. Furthermore, the protective shell 26 provides excellent external protection, encasing the spring 28 and internal circuitry, effectively preventing damage such as broken pins caused by external impacts or compression, thus improving the durability of the entire connector structure. When the headphone cable 33 is snagged, the male connector shell 21 can separate from the female connector shell 11, thereby promptly separating from the headphone body and detaching from the human body, protecting the human body from injury and ensuring the integrity of the female connector module 1 on the headphone body, reducing safety risks and the failure rate.

[0039] When the headphone cable 33 is bent at the connection point, the outer spring 34 will bend and compress accordingly due to its flexibility. The spring 34 can undergo elastic deformation under stress, thus providing cushioning and restraint for the headphone cable 33, effectively preventing excessive bending at the connection point from causing breakage or damage to the outer sheath. Furthermore, the heat-shrink tubing 32 wrapped around the spring 34 prevents dust and debris from penetrating and entering the gaps in the spring 34. This avoids dust and debris from entering the gaps in the spring 34 and hindering its normal expansion and contraction, thereby affecting its elasticity.

[0040] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A durable earphone connector structure, characterized by, The utility model relates to a connector structure, including female seat module (1) and male seat module (2), Female seat module (1) includes female seat shell (11), and the base (12) is tightly embedded in female seat shell (11), four groups of insertion pins (13) are installed in base (12), and four groups of insertion pins (13) are combined into 4pin insertion pins at equal intervals, one side in female seat shell (11) is equipped with anti -stupid recess (15); Male seat module (2) includes male seat shell (21), and male seat body (22) is equipped in male seat shell (21), the protection shell (26) is equipped on one side of male seat shell (21), the elastic sheet (28) and earphone wire (33) are equipped in protection shell (26), one side of elastic sheet (28) is connected male seat body (22) through the elastic clamping piece of separable type, the other side is connected earphone wire (33) through the terminal of quick plug -pull type, realizes the convenient replacement of elastic sheet (28), one side of male seat shell (21) is equipped with anti -stupid convex (23), and the anti -stupid convex (23) female seat shell (11) anti -stupid recess (15) shape is complementary and position corresponds. The base (12) is made of transparent high-temperature nylon and PEK materials with high temperature resistance, and the base (12) and the insertion pin (13) of the female seat module (1) are connected by a tight process to ensure that the insertion pin (13) is fixed firmly and the signal transmission is stable.

2. A durable earphone connector structure as claimed in claim 1, wherein: The insertion pin (13) and the male seat body (22) are made of copper alloy, and the surface gold plating layer has a thickness of 3 μm.

3. A durable earphone connector structure as claimed in claim 2, wherein: The male seat shell (21) is fixed with an adhesive ring (24) on one side, and the protection shell (26) and the adhesive ring (24) are glued and fixed.

4. A durable earphone connector structure as claimed in claim 3, wherein: The female seat shell (11) is installed with a female seat sealing ring (14) on one side, and the male seat shell (21) is installed with a male seat sealing ring (25) on one side, which can seal the gap when the two are connected.

5. A durable earphone connector structure as claimed in claim 1, wherein: The anti-skid sleeve (27) is made of silica gel and is installed on the outside of the protection shell (26).

6. A durable earphone connector structure as claimed in claim 4, wherein: The utility model also includes a folding prevention assembly (3) composed of a spring (34) sleeved on the outside of the earphone wire (33) and a heat shrink tube (32) covering the spring (34), the spring (34) being located on the part of the earphone wire (33) extending out of the protection shell (26) to limit excessive bending of the earphone wire (33).

7. A durable earphone connector structure as claimed in claim 1, wherein: The heat shrink tube (32) is installed with a fixing ring (31) on one side, and the fixing ring (31) is fixedly connected with the protection shell (26).

8. A durable earphone connector structure as defined in claim 7, wherein: ​

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