Earphone clamping structure

Abstract

This utility model discloses an ear clip structure for headphones, relating to the field of headphone technology. It includes a battery compartment shell and a speaker shell, with an ear clip outer sheath connecting the battery compartment shell and the speaker shell. The outer sheath has a pre-installed cable routing channel, through which an LED strip is inserted. The inner diameter of the cable routing channel is larger than the outer diameter of the LED strip. A steel wire and a wire core are respectively inserted inside the outer sheath. This structure uses a 1.2mm LED strip with a 1.7mm LED hole silicone tube, allowing for easy insertion of the LED strip without lubrication, increasing the LED strip's mobility within the hole. It also uses φ0.6 steel wire and simplifies the process to manual gluing or one-time molding fixation, effectively solving the problems of high labor costs and high defect rates caused by complex assembly steps in existing technologies, significantly improving production efficiency and reducing production costs.

Description

Technical Field

[0001] This utility model relates to the field of headphone technology, and in particular to an ear clip structure for headphones. Background Technology

[0002] The earliest OWS luminous headphone products on the domestic market included OWS clip-on headphones and luminous OWS over-ear headphones. The ear hook structure of this type of over-ear product uses the following materials: the diameter of the light strip is 1.5mm, the soft rubber tube is made of TPE material with drawn wire (containing 2 core copper wires), the diameter of the light strip insertion hole is 1.8mm, the diameter of the matching steel wire is 0.8mm, and one end of the steel wire is fixed with hard rubber to limit rotation.

[0003] The assembly process is complicated: first, lubricant is applied to the 1.5mm LED strip and then it is inserted into the TPE soft tube. Then, the steel wire is inserted into the soft tube. Next, the entire flexible tube containing the LED strip and the steel wire is put into the plastic shell of the earphone. The plastic part at one end of the steel wire is fixed by applying glue, and the other end is tightened with screws. Finally, the wires are connected to the PCBA board and the speaker.

[0004] The aforementioned structure and process lead to numerous problems: complex assembly steps and high labor costs; unreasonable design of the gap between the light strip and the flexible tube hole, requiring lubrication during insertion, and the light strip is prone to breakage due to friction or bending, resulting in a high product defect rate. Some unqualified products have entered the market, affecting user experience and product reliability. Utility Model Content

[0005] To address the technical problems existing in the background art, this utility model proposes an ear clip structure for headphones.

[0006] This utility model proposes an ear clip structure for headphones, including a battery compartment shell and a speaker shell. The battery compartment shell and the speaker shell are connected together by an ear clip outer cover. The ear clip outer cover has a reserved cable channel inside, and an LED strip is inserted inside the cable channel. The inner diameter of the cable channel is larger than the outer diameter of the LED strip. A steel wire and a wire core are respectively inserted inside the ear clip outer cover.

[0007] Furthermore, both the battery compartment shell and the speaker shell are components made of a composite material of ABS plastic and polycarbonate.

[0008] Furthermore, the outer sheath of the ear clip is made of thermoplastic polyurethane rubber or silicone.

[0009] Furthermore, the inner diameter of the ribbon cable channel is 1.7mm, the outer diameter of the light strip is 1.2mm, and the light strip is configured as a flexible light strip.

[0010] Furthermore, the steel wire is configured as a component made of shape memory steel wire.

[0011] Furthermore, the wire core is configured as an enameled wire core to provide insulation.

[0012] Furthermore, a circuit board is installed inside the battery compartment shell, with one end of the wire core connected to the circuit board and the other end connected to the speaker in the speaker shell.

[0013] Furthermore, a limiting protrusion is connected inside the speaker housing to limit the end of the ear clip outer sheath.

[0014] The beneficial effects of this utility model are as follows: By using a silicone tube with a 1.2mm light strip and a 1.7mm light hole, the light strip can be easily inserted without applying lubricating oil, increasing the movement of the light strip in the hole. At the same time, the use of φ0.6 steel wire and the simplification of manual gluing or one-time molding fixation effectively solves the problems of high labor costs and high defect rate caused by complex assembly steps in the prior art, which significantly improves production efficiency and reduces production costs. Attached Figure Description

[0015] Figure 1 This is a first-view structural schematic diagram of the present invention;

[0016] Figure 2 This is a structural schematic diagram of the present invention from a second perspective;

[0017] Figure 3 This is a top view of the present invention;

[0018] Figure 4 This utility model Figure 3 Sectional view of AA.

[0019] In the diagram: 1. Battery compartment shell; 2. Speaker shell; 3. Ear clip outer sleeve; 4. Cable routing channel; 5. LED strip; 6. Steel wire; 7. Wire core; 8. Circuit board; 9. Limiting protrusion. Detailed Implementation

[0020] Reference Figure 1-4 The present invention proposes an ear clip structure for headphones, which mainly includes a battery compartment shell 1, a speaker shell 2, an ear clip outer sheath 3, a ribbon cable channel 4, an LED strip 5, a steel wire 6, a wire core 7, a circuit board 8, and a limiting protrusion 9. The specific technical solution is as follows:

[0021] Both the battery compartment housing 1 and the speaker housing 2 are integrally injection molded from a composite material of ABS plastic and polycarbonate, possessing high strength, impact resistance, and good dimensional stability. The battery compartment housing 1 has a pre-reserved mounting chamber to accommodate the circuit board 8 and the polymer lithium battery. The speaker housing 2 has a speaker mounting position inside for fixing the speaker, and its inner end is integrally molded with a limiting protrusion 9 to axially limit the end of the ear clip outer sheath 3, preventing loosening after assembly.

[0022] The outer ear clip sleeve 3 is made of 30-degree silicone or thermoplastic polyurethane rubber (TPU) material and is made by drawing wire. It has good flexibility and resilience and can fit the ear contours of different users. The inside has a wire channel 4 integrally formed along the length direction, and a steel wire insertion channel is reserved. The overall structure is lightweight and durable, which solves the problem of the unsuitable hardness of TPE material soft rubber tube in the existing technology.

[0023] The cable channel 4 is an axial through hole pre-reserved inside the ear clip outer sheath 3, with an inner diameter of 1.7mm, for inserting the light strip 5. This size design is more precise than the 1.8mm lamp hole in the prior art, and is larger than the outer diameter of the light strip 5, providing ample room for the light strip 5 to move and reducing the risk of bending and breakage of the light strip during assembly and use;

[0024] The light strip 5 uses a flexible light strip with an outer diameter of 1.2mm, which is thinner than the 1.5mm light strip in the existing technology. It can be easily inserted into the ribbon cable channel 4 without the need for lubrication, solving the cumbersome step of lubricating the light strip in the existing technology. The back of the light strip 5 is made of solid-color silicone, and the light-emitting surface is made of transparent silicone material to ensure uniform light emission. Its technical parameters are: lumens 90~100LM, color temperature 2700K, color rendering index 80, current 200MA, voltage 3V, and polarity with the round hole end being positive. It can achieve light emission control by electrically connecting to the circuit board 8 through the wire core 7.

[0025] The steel wire 6 is a 0.6mm diameter memory steel wire, which is inserted into the wire channel inside the ear clip outer sheath 3. It can adapt to the user's ear contour through its own deformation, improving wearing stability. Compared with the existing 0.8mm steel wire, it is lighter and does not require a complicated fixing structure at both ends. It can be directly connected to the shell through dispensing or molding processes.

[0026] The wire core 7 uses a 2-core enameled wire with good insulation. One end of it is connected to the circuit board 8 inside the battery compartment shell 1 by welding, and the other end is connected to the speaker inside the speaker shell 2 to realize the signal and power transmission between the circuit board and the speaker.

[0027] The circuit board 8 is installed inside the battery compartment shell 1 and integrates a touch button control module. It can be connected to the light strip 5 through the wire core 7 to realize the control of the light strip's breathing flash and on / off state.

[0028] The assembly process of this structure:

[0029] Process 1: Manual rapid assembly process

[0030] Step 1: Manually insert the 1.2mm LED strip 5 into the cable channel 4 of the outer sheath 3 of the ear clip (due to the gap design between the 1.7mm channel and the 1.2mm LED strip, no lubricant is needed during insertion, increasing efficiency by more than 30%).

[0031] Step 2: Insert the 0.6mm memory steel wire 6 into the wire channel of the ear clip outer sheath 3;

[0032] Step 3: Align the two ends of the ear clip outer sheath 3 with the connection ports of the battery compartment outer shell 1 and the speaker outer shell 2, respectively, wherein the speaker outer shell 2 is limited by the limiting protrusion 9;

[0033] Step 4: Manually apply glue to fix the ear clip outer sheath 3 to the connection between the two outer shells (no screws or complicated welding required). After completion, weld the two ends of the wire core 7 to the circuit board 8 and the speaker respectively, and close the back cover of the battery compartment shell 1 and the speaker shell 2.

[0034] Compared to the existing technology that requires "lubricating the light strip, fixing it with screws, and assembling it in multiple steps," this process reduces manual operations by more than 50% and lowers the risk of light strip breakage (the defect rate is reduced from 15% in the existing technology to below 3%).

[0035] Process 2: One-time molding optimized process:

[0036] Step 1: Same as process one, thread the light strip 5 and the steel wire 6 into the wiring channel 4 and the steel wire channel of the outer sheath 3 of the ear clip, respectively;

[0037] Step 2: Place the entire silicone ear clip outer sheath 3, with the light strip 5 and steel wire 6 threaded through it, into the mold, and form hard plastic (PC material) at both ends through a one-time injection molding process, replacing the "two-time molding (hard plastic first, then silicone)" in the existing technology;

[0038] Step 3: Insert the ear clip outer sheath 3 with hard glue at both ends into the corresponding slots of the battery compartment shell 1 and the speaker shell 2, and achieve initial fixation by the cooperation of the hard glue with the shell;

[0039] Step 4: Apply adhesive to the connection point to reinforce it, and complete the welding of wire core 7 and the outer shell cover.

[0040] This process replaces "two-stage molding" with "one-stage molding," shortening the production cycle by 40% and reducing the scrap rate of the LED strips caused by adhesive dispensing during the silicone molding process (reducing the scrap rate from 20% in the existing technology to below 5%).

[0041] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An ear clip structure for headphones, comprising a battery compartment shell (1) and a speaker shell (2), characterized in that, The battery compartment shell (1) and the speaker shell (2) are connected by an ear clip outer sheath (3). The ear clip outer sheath (3) has a reserved wiring channel (4) inside. The light strip (5) is inserted inside the wiring channel (4). The inner diameter of the wiring channel (4) is larger than the outer diameter of the light strip (5). The ear clip outer sheath (3) has steel wire (6) and wire core (7) inserted inside.

2. The ear-clamping structure of the earphone according to claim 1, characterized in that, The battery compartment shell (1) and the speaker shell (2) are both composite materials of ABS plastic and polycarbonate.

3. The ear-clamping structure of the earphone according to claim 1, characterized in that, The outer sheath (3) of the ear clip is made of thermoplastic polyurethane rubber or silicone.

4. The ear-clamping structure of the earphone according to claim 1, characterized in that, The inner diameter of the cable channel (4) is 1.7 mm, the outer diameter of the light strip (5) is 1.2 mm, and the light strip (5) is configured as a flexible light strip.

5. The ear-clamping structure of the earphone according to claim 1, characterized in that, The steel wire (6) is a component made of memory steel wire.

6. The ear-clamping structure of the earphone according to claim 1, characterized in that, The core (7) is set as an enameled wire core to provide insulation.

7. The ear clip structure of the earphone according to claim 1, characterized in that, The battery compartment housing (1) houses a circuit board (8). One end of the wire core (7) is connected to the circuit board (8), and the other end is connected to the speaker in the speaker housing (2).

8. The ear-clamping structure of the earphone according to claim 1, characterized in that, The inside of the speaker housing (2) is connected to a limiting protrusion (9) to limit the end of the ear clip outer sheath (3).

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