Earphone ear hook SR structure

Abstract

The utility model discloses an earphone ear hangs SR structure, including earphone casing, SR fixed part, peg, wire and silica gel ear hangs, earphone casing is equipped with SR positioning cavity, and SR positioning cavity has side part cavity wall and inner end end cavity wall, and the side part cavity wall of SR positioning cavity is equipped with two first peg insertion hole side by side, and the inner end end cavity wall of SR positioning cavity is equipped with the wire hole, SR fixed part includes first end and second end, and the first end of SR fixed part is installed in the SR positioning cavity, and the first end of SR fixed part is equipped with two second peg insertion hole side by side, and the number of peg is two, and is inserted into corresponding first peg insertion hole and second peg insertion hole respectively, and one end of silica gel ear hangs is sleeved in the second end of SR fixed part, and wire hole is equipped in SR fixed part. The utility model discloses SR fixed part connection fastening, can position the inner end position of SR fixed part, can separate earphone internal cavity and SR fixed part each other, the utility model discloses manufacture and easy to assemble.

Description

Technical Field

[0001] This utility model relates to the field of ear-hook headphone technology, and in particular to an ear-hook SR structure. Background Technology

[0002] Ear-hook headphones are headphones with an ear hook added to the side of the headphone shell for ease of use. Ear-hook headphones consist of an ear hook and a headphone shell, with the headphone shell connected to the lower end of the ear hook. The main control circuit board and speaker are installed inside the headphone shell, and the ear hook is used to suspend the headphone above the ear, providing auxiliary support. In existing technology, some ear-hook headphones also house components such as batteries and microphones within the ear hook, which are connected to the main control circuit board inside the headphone shell via wires. Because the ear hook needs to be bent and deformed frequently, the wires inside the ear hook also bend and deform. At the connection point between the ear hook and the headphone shell, the wires inside the ear hook are susceptible to bending stress, which can easily lead to breakage after prolonged bending. To prevent this problem, a stress-relief structure, or SR (Strain Relief) structure, is usually designed to eliminate stress on the wires.

[0003] See Chinese Patent Publication No. CN118018900A, which discloses an ear-hook type earphone, including an earphone head shell and an ear-hook assembly. The ear-hook assembly includes a flexible layer and elastic metal wires and conductors disposed within the flexible layer. The flexible layer is integrally coated with adhesive and connected to the earphone head shell. The ear-hook assembly also includes a first connecting block, which is injection molded to one end of the elastic metal wires and conductors. The end of the conductor extends out of the first connecting block and into the earphone head shell for wiring with internal circuitry. The first connecting portion has a first insertion portion, into which the first connecting block is inserted. The first insertion portion is a socket or slot. To improve the connection's firmness, the first connecting block and the first insertion portion are bonded together with adhesive. The first connecting block and the earphone head shell are connected by fasteners, specifically positioning pins. However, the connection structure between the ear hook assembly and the earphone head shell of the patent CN118018900A (equivalent to the ear hook SR structure) still has the following technical problems: (1) There is only one positioning pin between the first connecting block and the first insertion part, and the positioning pin is biased to one side of the first connecting block. After long-term use, as the ear hook assembly is frequently bent and flexed, the first connecting block and the first insertion part are still prone to loosening, and the fastening is not good enough; (2) The inner end of the first insertion part does not have an inner end cavity wall. When the first connecting block is inserted, the inner end of the first connecting block cannot be limited. At the same time, the inner end cavity wall cannot separate the earphone cavity from the first connecting block; (3) The flexible layer is directly fitted onto one end of the earphone head shell. During the manufacturing process, the earphone head shell needs to be placed in the rubber coating mold and then coated as a whole. The earphone head shell is not easy to be positioned in the rubber coating mold and is also easy to be damaged. As a result, the manufacturing and assembly process of the ear hook assembly and the earphone head shell is very complicated. Utility Model Content

[0004] The technical problem to be solved by this utility model is to address the shortcomings of the prior art by providing an earphone ear hook SR structure. The SR fixing member of the earphone ear hook SR structure is connected and fastened. The earphone ear hook SR structure can limit the inner end position of the SR fixing member and can separate the internal cavity of the earphone from the SR fixing member. The earphone ear hook SR structure is easy to manufacture and assemble.

[0005] To solve the above-mentioned technical problems, the technical solution of this utility model is: an earphone ear hook SR structure, including an earphone shell, an SR fixing member, pins, a wire, and a silicone ear hook. The earphone shell is provided with an SR positioning cavity, which has a side cavity wall and an inner end cavity wall. The outer end of the SR positioning cavity is open. The side cavity wall of the SR positioning cavity is provided with two first pin insertion holes in parallel. The inner end cavity wall of the SR positioning cavity is provided with a wire passage hole. The SR fixing member includes a first end and a second end. The first end of the SR fixing member is installed inside the SR positioning cavity. The first end of the SR fixing member is provided with two second pin insertion holes in parallel, corresponding to the first pin insertion holes. There are two pins, which are respectively inserted into the corresponding first pin insertion holes and second pin insertion holes. One end of the silicone ear hook is fitted outside the second end of the SR fixing member. The SR fixing member is provided with a wire hole. The wire is installed inside the silicone ear hook, and one end of the wire passes through the wire hole and the wire passage hole in sequence.

[0006] In the above technical solution, the wire hole passes through the area between the two second pin insertion holes.

[0007] In the above technical solution, one end of the pin has a knurled pattern on its outer side, and one end of the pin is fastened into the first pin insertion hole through the knurled pattern.

[0008] In the above technical solution, the SR positioning cavity is an asymmetrical irregular cavity, and the overall shape of the first end of the SR fixing member matches the shape of the SR positioning cavity.

[0009] In the above technical solution, one end of the silicone ear hook is provided with an SR connecting cavity, the second end of the SR fixing member is installed inside the SR connecting cavity, the middle part of the SR fixing member is provided with an annular groove, and the inner wall of the end of the SR connecting cavity is provided with an annular retaining ring, which is inserted into the annular groove. The SR connecting cavity is an asymmetrical irregular cavity, and the overall shape of the second end of the SR fixing member matches the shape of the SR connecting cavity.

[0010] In the above technical solution, the second end of the SR fixing member is provided with a relief groove for the wire to swing.

[0011] In the above technical solution, the earphone hook SR structure also includes a steel wire, which is installed inside the silicone ear hook, and one end of the steel wire is fixedly connected to the SR fixing member.

[0012] In the above technical solution, the earphone shell is a plastic earphone shell, the SR fixing component is a plastic SR fixing component or a rubber SR fixing component, one end of the steel wire is provided with a hook, and the plastic SR fixing component is injection molded to connect one end of the steel wire and its hook.

[0013] The beneficial effects of this utility model are as follows: Because the inner side wall of the SR positioning cavity is provided with two first pin insertion holes arranged in parallel, the first end of the SR fixing member is installed inside the SR positioning cavity, and the first end of the SR fixing member is provided with two second pin insertion holes arranged in parallel, corresponding to the first pin insertion holes. There are two pins, which are inserted into the corresponding first and second pin insertion holes respectively. Therefore, this utility model can use the two parallel pins to fix the SR fixing member, avoiding the connection position from being biased to one side, resulting in good connection tightness and a long service life. This invention features an inner end cavity wall in the SR positioning cavity, which limits the inner position of the SR fixing component and separates the earphone's internal cavity from the SR fixing component. Furthermore, since one end of the silicone ear hook is fitted onto the second end of the SR fixing component, rather than onto one end of the earphone head shell, the earphone head shell does not need to be manufactured together with the SR fixing component, wire, and silicone ear hook in a molding process. During assembly, the SR fixing component, wire, and silicone ear hook are first molded as a single unit. Then, the first end of the SR fixing component is inserted into the SR positioning cavity, the wire passes through the wire hole, and two pins are inserted to secure the SR fixing component. This completes the assembly of the ear hook SR structure, making manufacturing and assembly easy. Attached Figure Description

[0014] Figure 1 This is a structural diagram of the SR structure of the ear hook for headphones.

[0015] Figure 2 This is a first-view dispersion diagram of the ear hook SR structure for headphones.

[0016] Figure 3 This is a second-view dispersion diagram of the ear hook SR structure for headphones.

[0017] Figure 4 This is a diagram showing the dispersed structure of the SR fastener and the silicone ear hook.

[0018] Figure 5 This is a longitudinal sectional view of the SR structure of the ear hook for headphones. Detailed Implementation

[0019] The structural and working principles of this utility model will be further described in detail below with reference to the accompanying drawings.

[0020] like Figures 1-5As shown, this utility model is an earphone ear hook SR (Strain Relief) structure, including an earphone shell 1, an SR fixing member 2, pins 3, wires 4, and silicone ear hooks 5. The earphone shell 1 is provided with an SR positioning cavity 11, which has a side cavity wall 111 and an inner end cavity wall 112. The outer end of the SR positioning cavity 11 is open. The side cavity wall 111 of the SR positioning cavity 11 has two first pin insertion holes 113 arranged side by side. The inner end cavity wall 112 of the SR positioning cavity 11 has a wire passage hole 114. The SR fixing member 2 includes a first end 21 and a second end 22. The first end 21 of the SR fixing member 2... Installed within the SR positioning cavity 11, the first end 21 of the SR fixing member 2 has two parallel second pin insertion holes 211 corresponding to the first pin insertion hole 113. Two pins 3 are inserted into the corresponding first pin insertion hole 113 and second pin insertion hole 211, respectively. One end of the silicone ear hook 5 is fitted over the second end 22 of the SR fixing member 2. The SR fixing member 2 has a wire hole 23 inside, and the wire 4 is installed inside the silicone ear hook 5. One end of the wire 4 passes through the wire hole 23 and the wire through hole 114 in sequence. This invention utilizes two parallel pins 3 to fix the SR fixing member 2, preventing the connection position from being biased to one side, ensuring good connection tightness and a long service life. Because the SR positioning cavity 11 of this invention has an inner end cavity wall 112, which can limit the inner end position of the SR fixing member 2 and separate the inner cavity of the earphone from the SR fixing member 2; because one end of the silicone ear hook 5 is fitted outside the second end 22 of the SR fixing member 2 instead of being fitted onto one end of the earphone head shell, the earphone head shell does not need to be manufactured and formed together with the SR fixing member 2, the wire 4 and the silicone ear hook 5 in the overmolding mold. During manufacturing and assembly, the SR fixing member 2, the wire 4 and the silicone ear hook 5 are first formed into one piece, then the first end 21 of the SR fixing member 2 is inserted into the SR positioning cavity 11 and the wire 4 is passed through the wire hole 114. Then, two pins 3 are inserted to fasten the SR fixing member 2, and the ear hook SR structure can be assembled. Manufacturing and assembly are easy.

[0021] like Figure 2 , 4 As shown in Figure 5, the wire hole 23 passes through the area between the two second pin insertion holes 211, which can prevent the pin 3 from interfering with the wire 4.

[0022] like Figure 2 , 3 As shown, one end of the pin 3 has knurled grooves 31 on its outer side, and one end of the pin 3 is securely inserted into the first pin insertion hole 113 through the knurled grooves 31. The knurled grooves 31 of the pin 3 can generate a large frictional force between itself and the inner wall of the first pin insertion hole 113, preventing the pin 3 from coming loose from the first pin insertion hole 113.

[0023] like Figure 2-5 As shown, the SR positioning cavity 11 is an asymmetrical irregular cavity, and the overall shape of the first end 21 of the SR fixing member 2 matches the shape of the SR positioning cavity 11. This structure enables the first end 21 of the SR fixing member 2 to be stably and tightly installed in the SR positioning cavity 11, preventing shaking or loosening.

[0024] like Figure 3-5 As shown, one end of the silicone ear hook 5 is provided with an SR connecting cavity 51, and the second end 22 of the SR fixing member 2 is installed inside the SR connecting cavity 51. The middle part of the SR fixing member 2 is provided with an annular groove 24, and the inner wall of the end of the SR connecting cavity 51 is provided with an annular retaining ring 52, which is inserted into the annular groove 24. The SR connecting cavity 51 is an asymmetrical irregular cavity, and the overall shape of the second end 22 of the SR fixing member 2 matches the shape of the SR connecting cavity 51. This structure enables the second end 22 of the SR fixing member 2 to be securely and tightly installed in the SR connecting cavity 51, preventing shaking or loosening.

[0025] like Figure 3 As shown, the second end 22 of the SR fastener 2 is provided with a relief groove 221 for the wire 4 to swing. When the silicone ear hook 5 is bent, the wire 4 can swing in the relief groove 221, which can better avoid the problem of bending and breaking of the wire 4 at the connection of the SR fastener 2.

[0026] like Figure 3 As shown, the earphone ear hook SR structure also includes a steel wire 6, which is installed inside the silicone ear hook 5. One end of the steel wire 6 is fixedly connected to the SR fixing member 2. The bending directions of the steel wire 6, the wire 4, and the silicone ear hook 5 are consistent. As a preferred embodiment of this utility model, the earphone shell 1 is a plastic earphone shell, the SR fixing member 2 is a plastic SR fixing member or a rubber SR fixing member, one end of the steel wire 6 is provided with a hook 61, and the plastic SR fixing member 2 is injection molded to connect one end of the steel wire 6 and its hook 61.

[0027] The above description is merely a preferred embodiment of this utility model. Any minor modifications, equivalent changes, and alterations made to the above embodiments based on the technical solution of this utility model shall fall within the scope of the technical solution of this utility model.

Claims

1. An earphone ear hook SR structure, characterized in that: The device includes an earphone housing (1), an SR fixing member (2), pins (3), a wire (4), and a silicone ear hook (5). The earphone housing (1) has an SR positioning cavity (11), which has a side cavity wall (111) and an inner end cavity wall (112). The outer end of the SR positioning cavity (11) is open. The side cavity wall (111) of the SR positioning cavity (11) has two first pin insertion holes (113) arranged side by side. The inner end cavity wall (112) of the SR positioning cavity (11) has a wire passage hole (114). The SR fixing member (2) includes a first end (21) and a second end (22). The first end (21) of the SR fixing member (2) is installed with... Inside the SR positioning cavity (11), the first end (21) of the SR fixing member (2) is provided with two second pin insertion holes (211) corresponding to the first pin insertion hole (113). There are two pins (3), and the two pins (3) are inserted into the corresponding first pin insertion hole (113) and second pin insertion hole (211) respectively. One end of the silicone ear hook (5) is fitted outside the second end (22) of the SR fixing member (2). The SR fixing member (2) is provided with a wire hole (23). The wire (4) is installed inside the silicone ear hook (5). One end of the wire (4) passes through the wire hole (23) and the wire hole (114) in sequence.

2. The earphone ear hook SR structure according to claim 1, characterized in that: The wire hole (23) passes through the area between the two second pin holes (211).

3. The earphone ear hook SR structure according to claim 1, characterized in that: One end of the pin (3) is provided with knurled pattern (31), and one end of the pin (3) is fastened into the first pin insertion hole (113) through the knurled pattern (31).

4. The earphone ear hook SR structure according to claim 1, characterized in that: The SR positioning cavity (11) is an asymmetrical irregular cavity, and the overall shape of the first end (21) of the SR fixing member (2) matches the shape of the SR positioning cavity (11).

5. The earphone ear hook SR structure according to claim 1, characterized in that: One end of the silicone ear hook (5) is provided with an SR connecting cavity (51), the second end (22) of the SR fixing member (2) is installed in the SR connecting cavity (51), the middle part of the SR fixing member (2) is provided with an annular groove (24), the inner wall of the end of the SR connecting cavity (51) is provided with an annular retaining ring (52), and the annular retaining ring (52) is inserted into the annular groove (24).

6. The earphone ear hook SR structure according to claim 5, characterized in that: The SR connecting cavity (51) is an asymmetrical irregular cavity, and the overall shape of the second end (22) of the SR fixing member (2) matches the shape of the SR connecting cavity (51).

7. The earphone ear hook SR structure according to claim 5, characterized in that: The second end (22) of the SR fastener (2) is provided with a relief groove (221) for the wire (4) to swing.

8. The earphone ear hook SR structure according to claim 1, characterized in that: It also includes a steel wire (6), which is installed inside the silicone ear hook (5), and one end of the steel wire (6) is fixedly connected inside the SR fastener (2).

9. The earphone ear hook SR structure according to claim 8, characterized in that: The earphone shell (1) is a plastic earphone shell (1), the SR fixing part (2) is a plastic SR fixing part (2) or a rubber SR fixing part (2), one end of the steel wire (6) is provided with a hook (61), and the plastic SR fixing part (2) is injection molded to connect one end of the steel wire (6) and its hook (61).

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