Earphone

Abstract

The earphone comprises an outer shell, a circuit board, a conductive part and a plurality of conductive elastic pins, an installation cavity is formed in the outer shell, the circuit board is arranged in the installation cavity, conductive elastic pieces are arranged on the circuit board, the conductive part comprises a first conductive plate part and a second conductive plate part, and the first conductive plate part is electrically connected with the second conductive plate part. The conductive elastic piece elastically abuts against the second conductive plate part and is electrically connected with the second conductive plate part, electric connection is achieved in an elastic abutting mode, welding is not needed, the installation difficulty is reduced, the installation efficiency is improved, the first ends of the multiple conductive elastic pins are electrically connected with the first conductive plate part, and the first conductive plate part and the second conductive plate part are arranged at an included angle. And the space in the mounting cavity can be reasonably utilized, so that the conductive elastic sheet can elastically abut against the second conductive plate part, the mounting difficulty can be reduced, and the mounting efficiency can be improved.

Description

Technical Field

[0001] This application relates to the field of headphone technology, and more particularly to a type of headphone. Background Technology

[0002] In related technologies, the main board and spring pins in headphones are usually connected by electronic wires. Due to the limitations of headphone specifications, the connection between the main board and spring pins is difficult, resulting in low installation efficiency of the entire headphone. Utility Model Content

[0003] This application provides an earphone that solves the technical problem in related technologies where the connection between the plate and the spring pin is difficult, resulting in low installation efficiency of the entire earphone.

[0004] In a first aspect, embodiments of this application provide an earphone, comprising:

[0005] An outer casing having a mounting cavity;

[0006] A circuit board is disposed within the mounting cavity, and conductive spring contacts are provided on the circuit board.

[0007] A conductive portion, disposed within the mounting cavity, includes a first conductive plate portion and a second conductive plate portion, the first conductive plate portion and the second conductive plate portion being electrically connected, the first conductive plate portion and the second conductive plate portion being disposed at an angle, and a conductive spring elastically abutting against the second conductive plate portion and being electrically connected to the second conductive plate portion; and

[0008] Multiple conductive springs, the first end of which is electrically connected to the first conductive plate portion, and the second end of which extends to the outside of the mounting cavity.

[0009] In some embodiments, both the first conductive plate portion and the second conductive plate portion are flexible circuit boards.

[0010] In some embodiments, the conductive spring pin and the first conductive plate portion are located at the same end of the circuit board.

[0011] In some embodiments, the first conductive plate portion is spaced apart from the circuit board along the thickness direction of the first conductive plate portion.

[0012] In some embodiments, a reinforcing plate is provided on the side of the second conductive plate that is away from the circuit board, and the side of the reinforcing plate that is away from the second conductive plate is attached to the inner wall of the housing.

[0013] In some embodiments, the earphones further include a magnetic element disposed within the mounting cavity, the magnetic element being used for magnetic connection with a charging cable.

[0014] In some embodiments, the surface of the magnetic attractor is provided with an insulating layer, and the magnetic attractor is provided with a plurality of clearance grooves. The plurality of conductive spring pins are respectively inserted into the plurality of clearance grooves, and the plurality of clearance grooves are spaced apart.

[0015] In some embodiments, the magnetic attractor is located on the side of the first conductive plate portion away from the circuit board, and an insulating plate is provided between the magnetic attractor and the first conductive plate portion.

[0016] In some embodiments, a plurality of conductive springs are provided, and the plurality of conductive springs are arranged along the edge of the first conductive plate portion.

[0017] In some embodiments, the housing includes a first housing and a second housing, the first housing being disposed at an end of the second housing and forming the mounting cavity with the second housing, the first housing comprising:

[0018] Mounting plate, connected to the second housing; and

[0019] A limiting plate is provided on the side of the mounting plate facing away from the mounting cavity. The mounting plate and the mounting plate together form a limiting cavity. The conductive spring needle passes through the mounting plate so that the second end of the conductive spring needle is located inside the limiting cavity.

[0020] Wherein, when the conductive spring pin is used to electrically connect with the charging cable, the limiting cavity is used to accommodate the first part of the charging cable, and the first part is attached to the inner wall surface of the limiting plate.

[0021] In some embodiments, the outer peripheral sidewall of the conductive spring needle is provided with a mounting groove, and a portion of the first outer shell is engaged within the mounting groove.

[0022] The earphone based on the embodiments of this application includes a shell, a circuit board, a conductive part, and a plurality of conductive spring pins. The conductive part includes a first conductive plate and a second conductive plate, which are electrically connected. The conductive spring pins elastically abut against the second conductive plate and are electrically connected to it. The electrical connection is achieved through elastic abutment, eliminating the need for soldering, reducing installation difficulty, and improving installation efficiency. The first ends of the plurality of conductive spring pins are electrically connected to the first conductive plate, and the first and second conductive plates are set at an angle, which can make reasonable use of the space inside the mounting cavity, thereby facilitating the elastic abutment of the conductive spring pins against the second conductive plate, which also reduces installation difficulty and improves installation efficiency. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this application 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 application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of the structure of the headphone assembly provided in an embodiment of this application;

[0025] Figure 2 A cross-sectional structural diagram of the headphone assembly provided in an embodiment of this application;

[0026] Figure 3 for Figure 2 Enlarged schematic diagram of the structure at point A;

[0027] Figure 4 This is a cross-sectional schematic diagram of the headphone portion structure provided in an embodiment of this application;

[0028] Figure 5 This is a schematic diagram of the internal structure of the earphone provided in an embodiment of this application.

[0029] Figure reference numerals:

[0030] 100. Headphones;

[0031] 110. Outer shell; 110a. Mounting cavity; 111. First outer shell; 1111. Mounting plate; 1112. Limiting plate; 111a. Limiting cavity; 112. Second outer shell;

[0032] 120. Circuit board; 120a. Conductive spring;

[0033] 130. Conductive part; 131. First conductive plate part; 132. Second conductive plate part;

[0034] 140, conductive spring pin; 140a, mounting slot;

[0035] 150. Reinforcing plate;

[0036] 160. Magnetic suction element; 160a. Clearance groove;

[0037] 170. Insulation board.

[0038] 200. Charging cable. Detailed Implementation

[0039] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0040] In existing technology, the main board and spring pins in headphones are usually connected by electronic wires. Due to the limitations of headphone specifications, the connection between the main board and spring pins is difficult, resulting in low installation efficiency of the entire headphone.

[0041] To resolve the above technical issues, please refer to Figure 1-2 This application proposes an earphone 100 to solve the above-mentioned technical problems. The earphone 100 can be an open-back earphone, a semi-open-back earphone, or a wireless earphone. The embodiments of this application do not limit this. The earphone 100 will be further described below.

[0042] Please see Figure 3-4 The earphone 100 includes a housing 110, a circuit board 120, a conductive part 130, and a conductive spring pin 140.

[0043] The outer shell 110, as the exterior component of the entire earphone 100, can be made of high-strength engineering plastic or metal to form a sealed mounting cavity 110a, protecting the internal circuit from mechanical impact, liquid intrusion and electromagnetic interference. Its surface can also integrate touch sensors (such as capacitive buttons) or pressure sensors to realize functions such as playback control and noise reduction mode switching.

[0044] The circuit board 120 is located inside the mounting cavity 110a. The circuit board 120 is the location where the core functions of the entire earphone 100 are integrated. It can carry a Bluetooth chip, audio codec, noise reduction and power management, process audio signals, wireless transmission and algorithm calculation. The circuit board 120 is provided with conductive springs 120a for signal transmission and charging.

[0045] The conductive part 130 is disposed in the mounting cavity 110a. The conductive part 130 includes a first conductive plate part 131 and a second conductive plate part 132. The first conductive plate part 131 and the second conductive plate part 132 are electrically connected. The conductive spring piece 120a elastically abuts against the second conductive plate part 132 and is electrically connected to the second conductive plate part 132. That is, the first conductive plate part 131 and the second conductive plate part 132 act as signal / power distribution nodes to realize multi-channel parallel transmission.

[0046] The conductive spring pin 140 has a first end and a second end that are arranged opposite to each other. The first ends of the plurality of conductive spring pins 140 are electrically connected to the first conductive plate portion 131. The second ends of the conductive spring pins 140 extend outside the mounting cavity 110a and can contact the spring pins on the charging cable 200, thereby playing the role of signal transmission and charging conductivity.

[0047] The first conductive plate portion 131 and the second conductive plate portion 132 are arranged at an angle. The angle design of the conductive portion 130 breaks through the limitations of planar layout and constructs a three-dimensional conductive network within the limited mounting cavity 110a. This allows the conductive spring piece 120a and the second conductive plate portion 132 to have sufficient space to connect, thereby reducing the installation difficulty of both and improving installation efficiency.

[0048] Furthermore, in this embodiment, the conductive spring 120a elastically abuts against the second conductive plate 132, meaning that the conductive spring 120a does not need to be electrically connected to the second conductive plate 132 through a welding process. After eliminating the welding process, the thermal shock of high temperature to the components (such as capacitors and chips) around the circuit board 120 is avoided, and the yield rate is improved.

[0049] The conductive spring 120a and the first conductive plate 131 form a stable electrical contact through mechanical pressure, avoiding the risk of poor soldering in the welding process. Even if the user moves or the earphone 100 is dropped, the conductive spring 120a can still stably abut against the first conductive plate 131, thereby improving the reliability of the earphone 100.

[0050] Optionally, both the first conductive plate portion 131 and the second conductive plate portion 132 are flexible circuit boards. The bendable characteristics of the flexible circuit board can well adapt to the angle structure between the first conductive plate portion 131 and the second conductive plate portion 132 without the need for additional support for fixation.

[0051] Furthermore, since the first conductive plate portion 131 and the second conductive plate portion 132 are flexible, they have higher adaptability and can be well assembled even in some irregular mounting cavities 110a.

[0052] In a further embodiment, the first conductive plate portion 131 and the second conductive plate portion 132 are integrally bent. The bending process allows the angled structure to be directly formed without the need to reserve welding gaps, which not only reduces the installation difficulty but also improves the reliability of the conductivity of the entire first conductive plate portion 131 and the second conductive plate portion 132.

[0053] Please see Figure 4 In some embodiments of this application, the conductive spring pin 140 and the first conductive plate portion 131 are located at the same end of the circuit board 120. Therefore, during installation, the conductive spring pin 140 can be directly connected to the first conductive plate portion 131, making the length of the conductive spring pin 140 appropriate, thereby reducing material costs.

[0054] In one embodiment, the conductive spring pin 140 and the first conductive plate portion 131 are connected together by welding. Since the conductive spring pin 140 and the first conductive plate portion 131 are located at the same end of the circuit board 120, the welding of the conductive spring pin 140 and the first conductive plate portion 131 is less likely to affect the surrounding parts, thereby ensuring the reliability of the product.

[0055] Please continue reading. Figure 4 Along the thickness direction of the first conductive plate portion 131, the first conductive plate portion 131 and the circuit board 120 are spaced apart, that is, the conductive spring pin 140 connected to the first conductive plate portion 131 is difficult to contact the circuit board 120. Even when the earphone 100 is being worn, if the user moves or the earphone 100 is dropped, the conductive spring pin 140 is unlikely to contact the circuit board 120, thereby reducing the possibility of short circuit.

[0056] Secondly, since the first conductive plate portion 131 and the circuit board 120 are spaced apart, when the earphone 100 is in use, heat can flow between the first conductive plate portion 131 and the circuit board 120, making it difficult for heat to concentrate, thereby improving the reliability of the earphone 100.

[0057] In one embodiment of this application, a reinforcing plate 150 is provided on the side of the second conductive plate portion 132 away from the circuit board 120, and the side of the reinforcing plate 150 away from the second conductive plate portion 132 is attached to the inner wall surface of the outer casing 110.

[0058] The reinforcing plate 150 (also known as the reinforcing plate) can be made of epoxy board, aluminum plate, or stainless steel. Of course, in order to reduce the possibility of short circuit, an epoxy insulation layer can also be set on the surface of aluminum plate and stainless steel. The reinforcing plate 150 can increase the mechanical strength and stability of the second conductive plate 132 and avoid bending and tensile damage. The reinforcing plate 150 can be fixed by screws, thermally conductive adhesive or welding.

[0059] Furthermore, the reinforcing plate 150 is fixed to the outer shell by laser welding, structural adhesive or screws, so that the earphone 100 can still have good reliability during exercise or after being dropped. The outer shell 110 provides a reaction force to the reinforcing plate 150, so that the conductive spring 120a can stably and elastically abut against the second conductive plate 132.

[0060] In one embodiment of this application, please refer to Figure 4-5The earphone 100 also includes a magnetic component 160, which is located inside the mounting cavity 110a. The magnetic component 160 is used to magnetically connect with the charging cable 200. It can be understood that the charging cable 200 is also provided with a magnetic component, and its polarity is opposite to that of the magnetic component 160 on the earphone 100. Therefore, when the earphone 100 is charging, even when there is a certain distance between the earphone 100 and the charging cable 200, the magnetic effect allows the user to achieve automatic attraction without precise alignment. This enables the conductive spring pin 140 on the earphone 100 to quickly conduct electricity with the conductive spring pin on the charging cable 200, thereby realizing the functions of power transmission and signal transmission.

[0061] Furthermore, the surface of the magnetic attractor 160 is provided with an insulating layer, and the magnetic attractor 160 is provided with a plurality of clearance grooves 160a. A plurality of conductive spring pins 140 are respectively inserted into the plurality of clearance grooves 160a, and the plurality of clearance grooves 160a are spaced apart.

[0062] The insulating layer can be an epoxy resin insulating layer, which is coated or plated on the outer surface of the entire magnetic component 160. In this way, when the multiple conductive spring pins 140 are respectively inserted into the multiple clearance slots 160a, the conductive spring pins 140 will not occupy too much space in the mounting cavity 110a. This makes the entire earphone 100 compact and facilitates the miniaturization design of the earphone 100. At the same time, it can also reduce the possibility of short circuit between the conductive spring pins 140 and the magnetic component 160, thereby improving the reliability of the entire product.

[0063] Following the above, in order to further improve the reliability of the entire earphone 100, the magnetic suction member 160 is provided on the side of the first conductive plate portion 131 away from the circuit board 120, and an insulating plate 170 is provided between the magnetic suction member 160 and the first conductive plate portion 131.

[0064] The insulating plate 170 can be made of epoxy board, or other insulating materials such as polyimide or polyetheretherketone. The insulating plate 170 can prevent the magnetic accumulator 160 from contacting the first conductive plate 131, thus making it difficult for a short circuit to occur between the first conductive plate and the magnetic accumulator 160. Secondly, the insulating plate 170 can also support the first conductive plate 131, increasing the mechanical strength and stability of the first conductive plate 131 and preventing bending and tensile damage. The insulating plate 170 can be connected to the first conductive plate 131 and the magnetic accumulator 160 by means of screws, thermally conductive adhesive or welding.

[0065] Please see Figure 4 Multiple conductive springs 120a are provided, and multiple conductive springs 120a form a parallel conductive path to ensure the continuity of charging / data transmission.

[0066] Multiple conductive springs 120a are arranged along the edge of the circuit board 120. The conductive springs 120a arranged at the edge can effectively utilize the space of the first conductive plate portion 131, especially in the edge area of ​​the first conductive plate portion 131, avoiding the wiring congestion problem that may be caused by arranging pads in the central area. This makes the wiring simpler and more orderly, and improves the overall aesthetics of the first conductive plate portion 131.

[0067] Please see Figure 3-4 The outer shell 110 includes a first outer shell 111 and a second outer shell 112. The first outer shell 111 is located at the end of the second outer shell 112 and forms a mounting cavity 110a with the second outer shell 112. The modular design of the first outer shell 111 and the second outer shell 112 facilitates production and maintenance.

[0068] The first outer shell 111 includes a mounting plate 1111 and a limiting plate 1112. The mounting plate 1111 and the limiting plate 1112 can be an integrally formed structure, thereby reducing the construction process. The mounting plate 1111 and the limiting plate 1112 can be installed on the second outer shell 112 by means of snap-fit ​​or screws, etc., which is not limited here.

[0069] The limiting plate 1112 is located on the side of the mounting plate 1111 facing away from the mounting cavity 110a. The mounting plate 1111 and the mounting plate 1111 form the limiting cavity 111a. The conductive spring needle 140 passes through the mounting plate 1111 so that the second end of the conductive spring needle 140 is located in the limiting cavity 111a. When the conductive spring needle 140 is used to electrically connect with the charging cable 200, the limiting cavity 111a is used to accommodate the first part of the charging cable 200, and the first part is attached to the inner wall surface of the limiting plate 1112.

[0070] The limiting cavity 111a can play a certain guiding role, guiding the charging cable 200 to be inserted correctly, avoiding the user from inserting it backwards or misaligning it, thus improving the convenience of use. At the same time, the inner wall of the limiting plate 1112 is in contact with the charging cable 200, which may play a fixing role, reducing the risk of the charging cable 200 falling off due to pulling during use.

[0071] The design of the limiting cavity 111a helps to fix the charging cable 200, prevent it from loosening during use, and improve the reliability of the connection. In addition, the limiting cavity 111a can also serve as a protective structure to prevent foreign objects from entering and protect the contact points of the conductive spring pin 140 and the charging cable 200.

[0072] Optionally, the outer peripheral sidewall of the conductive spring pin 140 is provided with a mounting groove 140a, and a portion of the first outer shell 111 is engaged in the mounting groove 140a.

[0073] The first outer shell 111 can be made of plastic material with a certain degree of elasticity. The first outer shell 111 has an opening to facilitate the insertion of the conductive spring pin 140, which also facilitates the connection of the conductive spring pin 140 with the clip. The bottom wall of the mounting groove 140a can be interference-fitted with the first outer shell 111, so that the conductive spring pin 140 is tightly assembled on the earphone 100. This also provides waterproof and dustproof protection, reducing the possibility of dust, rainwater and other impurities entering the mounting cavity 110a through the connection between the conductive spring pin 140 and the first outer shell 111.

[0074] In addition, the snap-fit ​​between the mounting groove 140a and the first outer shell 111 forms a mechanical interlock structure to prevent the conductive spring pin 140 from being displaced or falling off due to vibration, insertion or removal or external force during use. The snap-fit ​​design increases the contact area between the conductive spring pin 140 and the first outer shell 111, disperses external mechanical stress, and reduces the risk of local deformation.

[0075] The snap-fit ​​design replaces traditional welding or bonding processes, reducing process complexity and improving assembly efficiency. When the conductive spring pin 140 is damaged, it can be directly pulled out from the mounting slot 140a for replacement without damaging the main structure, thus reducing maintenance costs.

[0076] In the accompanying drawings of this embodiment, the same or similar reference numerals correspond to the same or similar components. In the description of this application, it should be understood that if terms such as "upper," "lower," "left," and "right" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, they are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the accompanying drawings are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0077] The above are merely preferred embodiments of this application and are not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. An earphone, characterized in that, include: An outer casing having a mounting cavity; A circuit board is disposed within the mounting cavity, and conductive spring contacts are provided on the circuit board. A conductive part is disposed in the mounting cavity. The conductive part includes a first conductive plate part and a second conductive plate part. The first conductive plate part and the second conductive plate part are electrically connected. The first conductive plate part and the second conductive plate part are arranged at an angle. The conductive spring sheet elastically abuts against the second conductive plate part and is electrically connected to the second conductive plate part. as well as Multiple conductive springs, the first end of which is electrically connected to the first conductive plate portion, and the second end of which extends to the outside of the mounting cavity.

2. The earphone according to claim 1, characterized in that, Both the first conductive plate portion and the second conductive plate portion are flexible circuit boards.

3. The earphone according to claim 1, characterized in that, The conductive spring pin and the first conductive plate are located at the same end of the circuit board.

4. The earphone according to claim 1, characterized in that, Along the thickness direction of the first conductive plate portion, the first conductive plate portion is spaced apart from the circuit board.

5. The earphone according to claim 1, characterized in that, A reinforcing plate is provided on the side of the second conductive plate that is away from the circuit board, and the side of the reinforcing plate that is away from the second conductive plate is attached to the inner wall of the outer casing.

6. The earphone according to claim 1, characterized in that, The earphones also include a magnetic component, which is disposed within the mounting cavity and is used to magnetically connect with the charging cable.

7. The earphone according to claim 6, characterized in that, The surface of the magnetic attractor is provided with an insulating layer, and multiple clearance grooves are opened on the magnetic attractor. Multiple conductive spring pins are respectively inserted into the multiple clearance grooves, and the multiple clearance grooves are spaced apart.

8. The earphone according to claim 6, characterized in that, The magnetic attractor is located on the side of the first conductive plate that is away from the circuit board, and an insulating plate is provided between the magnetic attractor and the first conductive plate.

9. The earphone according to claim 1, characterized in that, Multiple conductive springs are provided, and the multiple conductive springs are arranged along the edge of the first conductive plate.

10. The earphone according to claim 1, characterized in that, The outer casing includes a first outer casing and a second outer casing. The first outer casing is disposed at an end of the second outer casing and forms the mounting cavity with the second outer casing. The first outer casing includes: Mounting plate, connected to the second housing; and A limiting plate is provided on the side of the mounting plate facing away from the mounting cavity. The mounting plate and the mounting plate together form a limiting cavity. The conductive spring needle passes through the mounting plate so that the second end of the conductive spring needle is located inside the limiting cavity. Wherein, when the conductive spring pin is used to electrically connect with the charging cable, the limiting cavity is used to accommodate the first part of the charging cable, and the first part is attached to the inner wall surface of the limiting plate.

11. The earphone according to claim 10, characterized in that, The outer peripheral sidewall of the conductive spring needle is provided with a mounting groove, and a portion of the first outer shell is engaged in the mounting groove.

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