WO2021043243A1

WO2021043243A1 - Earphones

Info

Publication number: WO2021043243A1
Application number: PCT/CN2020/113403
Authority: WO
Inventors: 鹿麟; 郑勇; 顾新建; 陈鸿庆; 黄光海
Original assignee: 华为技术有限公司
Priority date: 2019-09-06
Filing date: 2020-09-04
Publication date: 2021-03-11
Also published as: CN110730402A; CN110730402B

Abstract

Provided in the present application are earphones, the earphones comprising: an ear rod cylinder, a main circuit board and a battery assembly; the main circuit board is installed within the ear rod cylinder, and a charging pad of the main circuit board extends out of an end opening of the ear rod cylinder; the battery assembly comprises a cylindrical battery, a battery circuit board and a heat-insulating support; the cylindrical battery is installed within the ear rod cylinder; the battery circuit board is provided with an output pad, and the output pad is soldered to the charging pad; the battery circuit board is connected to the cylindrical battery; and the heat-insulating support is disposed between the output pad and the cylindrical battery. Provided in the present application are earphones, in which the assembly and welding of a battery assembly and a main circuit board within an ear rod cylinder are achieved within a compact structural space, which has the effect of safely insulating heat.

Description

headset

This application claims the priority of the Chinese patent application filed with the Chinese Patent Office, the application number is 201910843260.8, and the application name is "headphones" on September 6, 2019. The entire content is incorporated into this application by reference.

Technical field

This application relates to the technical field of communication equipment, and in particular to a headset.

Background technique

P-type earphones (semi-in-ear earphones) are simple in shape and are loved by consumers. Fig. 1 is a schematic diagram of the structure of the earphone provided in the related art. As shown in Fig. 1, the battery of the P-type earphone generally adopts a cylindrical battery 31, which is arranged in the ear barrel 100 of the earphone. Compared with the button provided in the ear bag The shape of the battery can greatly increase the battery capacity, reduce the thickness of the ear bag of the headset, and improve the reliability.

In the related art, the long-strip battery arranged in the ear barrel and the main circuit board are connected in a manner of soldering through soldering pads. When soldering, you need to pull the main circuit board out of the ear barrel to expose the pad, then insert the battery and the battery circuit board welded on the positive and negative ends of the battery into the ear barrel, and then weld the battery circuit board and the main circuit board. The plates are welded together, and finally the welded battery assembly is inserted into the ear barrel.

However, in the above-mentioned related technologies, the heat generated during the welding process will have an adverse effect on the battery, thereby posing a safety hazard.

Summary of the invention

The embodiment of the present application provides an earphone, which can realize the assembly and welding of the battery assembly and the main circuit board in the ear barrel in a compact structural space, and plays a role of safety and heat insulation.

An embodiment of the present application provides a headset, including: an ear barrel, a main circuit board, and a battery assembly;

The main circuit board is installed in the ear barrel, and the charging pad of the main circuit board protrudes from the end opening of the ear barrel; the battery assembly includes a cylindrical battery, a battery circuit board, and a spacer. Thermal support, the cylindrical battery is installed in the ear barrel, the battery circuit board is provided with an output pad, the output pad is welded to the charging pad, and the battery circuit board is connected to the The cylindrical battery is connected, and the heat insulation bracket is arranged between the output pad and the cylindrical battery.

In the earphone provided by the embodiment of the present application, by arranging a heat insulation bracket between the cylindrical battery and the output pad of the battery circuit board, the stability of the cylindrical battery can be prevented from being affected by the high temperature during the welding process. In addition, the heat insulation bracket provides a flat welding operation surface, which is convenient for welding operation and can improve the welding stability of the welding point.

In a possible embodiment, the output pad includes a positive electrode pad connected to the positive electrode of the cylindrical battery, and a negative electrode pad connected to the negative electrode of the cylindrical battery. Both the negative electrode pad and the negative electrode pad are provided with solder joints for welding with the charging pad.

By providing solder joints on the positive electrode pad and the negative electrode pad, on the one hand, the welding effect between the output pad and the charging pad can be guaranteed; on the other hand, when the output pad and the charging pad are soldered , Can ensure the reliability of the circuit connection between the output pad and the charging pad soldering.

In a possible implementation manner, the cylindrical battery includes a battery main body and a battery positive electrode and a battery negative electrode respectively disposed at two ends of the battery main body, and the battery main body is configured as a hard shell.

With the above design, the hard-shell battery structure has high strength and is easy to assemble.

In a possible implementation manner, the battery circuit board includes an elongated body and a first connecting patch and a second connecting patch respectively provided at both ends of the elongated body, the first connecting patch Attached and welded to the positive electrode of the battery, the second connection patch is attached and welded to the negative electrode of the battery, and the elongated body is attached to the side wall of the battery body; the first connection patch A bent portion is provided at one end away from the elongated main body, the bent portion and the first connecting patch enclose a U-shaped groove, and the output pad is arranged on the bent portion.

With the above design, the battery circuit board is welded by connecting the patch and the cylindrical battery, and the output pad is arranged on the bent part of one end of the battery circuit board, which has a simple structure and is easy to implement.

In a possible implementation manner, the heat insulation support includes a heat insulation board located in the U-shaped groove, and the output pad and the first connection patch are respectively located on both sides of the heat insulation board .

With the above design, the heat shield is arranged between the output pad and the first connection patch, which can play a role of safe heat insulation and prevent the high temperature of the output pad from affecting the cylindrical battery. At the same time, the heat insulation board is clamped in the U-shaped groove enclosed by the bending part and the first connecting patch, and the assembly structure is stable.

In addition, the heat-insulating bracket further includes at least two side plates arranged on the edge of the heat-insulating plate, and one end of the side plate away from the heat-insulating plate is provided with a clamping part; the at least two side plates surround A accommodating cavity is formed, the positive electrode of the battery is located in the accommodating cavity, and the clamping part is engaged with the groove on the side of the positive electrode of the battery. By adopting such a design, the side plate forms an accommodating cavity and is provided with a clamping part, so that the heat insulation bracket can be conveniently assembled outside the positive electrode of the battery, and the connection reliability is high.

In this embodiment, the cylindrical battery is a hard-shell battery, and the battery circuit board is a flexible circuit board, which is welded to the positive and negative electrodes of the cylindrical battery through the patches at both ends, and the heat insulation bracket is clamped at the end of the positive electrode of the battery. Separating the output pad and the cylindrical battery can prevent the high temperature during the welding process from affecting the stability of the cylindrical battery; and the heat shield provides a flat welding operation surface, which is convenient for welding operations and can improve the welding stability of the solder joints. The operation of assembling the cylindrical battery, the battery circuit board and the heat insulation bracket into the battery assembly is simple. The battery assembly is installed in the ear barrel and then the output pad and the charging pad are connected, which can simplify the entire assembly process and effectively improve Assembly efficiency.

In a possible implementation manner, the cylindrical battery includes a battery main body and a battery positive electrode and a battery negative electrode respectively disposed at two ends of the battery main body, and the battery main body is a soft-packed battery cell.

The soft-pack battery cell adopts aluminum-plastic composite film as the shell, which has the advantages of good safety, light weight, high energy density, and good electrochemical performance.

In this embodiment, the battery circuit board includes a plate-shaped main body, and a first connection patch and a second connection patch that are arranged perpendicular to the plate-shaped main body, and the first connection patch is welded to the battery positive electrode. The second connecting patch is welded to the first end of the nickel tape, and the second end of the nickel tape is welded to the negative electrode of the battery; the output pad is arranged on the plate-shaped main body.

With this design, the battery circuit board is arranged at one end of the cylindrical battery, and the output pad is arranged on the plate-shaped main body of the battery circuit board by connecting the patch and the nickel strip and welding with the cylindrical battery. The structure is simple and easy to implement. .

In a possible embodiment, the heat insulation support includes a heat insulation board, and two supporting plates connected to the edges of the heat insulation board and arranged opposite to each other; the positive electrode of the battery is located on the heat insulation board and the two support plates. The first connecting patch is attached to the outer side surface of one of the support boards, and the second connecting patch is attached to the outer side surface of the other supporting board.

With this design, the heat shield is arranged between the output pad and the positive electrode of the battery, which can play a role of safe heat insulation and prevent the high temperature of the output pad welding from affecting the cylindrical battery. The support plate arranged on the edge of the heat insulation board can ensure the assembly stability of the heat insulation bracket, and the support plate can play the role of supporting the first connection patch and the second connection patch.

In this embodiment, the cylindrical battery is a soft pack battery, the battery circuit board is a flexible circuit board or a printed circuit board, and the battery circuit board is arranged at the end of the cylindrical battery. The positive and negative electrodes are welded, and the heat insulation bracket is set at the end of the battery positive electrode to separate the output pad and the cylindrical battery, which can prevent the high temperature during the welding process from affecting the stability of the cylindrical battery; and the heat insulation plate and the support plate Provides a flat welding operation surface, which is convenient for welding operation, and can improve the welding stability of the solder joint; the operation of assembling the cylindrical battery, battery circuit board and heat insulation bracket into a battery assembly is simple, and the battery assembly is installed in the ear barrel. Connecting the output pad and the charging pad can simplify the entire assembly process and effectively improve assembly efficiency.

In a possible implementation manner, at least two positioning pillars are provided on the heat insulation support, a first positioning hole matching the positioning pillars is provided on the output pad, and the charging pad is provided with There is a second positioning hole matched with the positioning pillar.

With this design, by extending the positioning pillars on the heat insulation bracket into the first positioning holes and the second positioning holes on the output pad and the charging pad, it is possible to ensure that the soldering points of the output pad and the charging pad are aligned , And played the role of welding pre-positioning, which is conducive to the smooth progress of the welding operation.

In a possible implementation manner, a limit step is provided in the ear barrel, a bracket hanging platform is provided on the heat insulation bracket, and the bracket hanging platform is clamped on the limit step.

With this design, a bracket hanging platform is set on the heat-insulating bracket, which is used to clamp the limit step in the ear tube, so as to limit the assembly depth of the ear tube when the battery assembly is installed in the ear tube. effect.

In a possible implementation manner, the main circuit board is a flexible circuit board, and the battery circuit board is a flexible circuit board or a printed circuit board.

With this design, the main circuit board is set as a flexible circuit board, and the charging pad can be bonded to the output pad by bending, which is beneficial to soldering and assembly. The battery circuit board can be set as a flexible circuit according to the different cylindrical batteries. Board or printed circuit board to facilitate assembly.

The assembling method of the earphone provided in the first embodiment of the present application is as follows: firstly, the main circuit board is installed in the ear barrel and the charging pad of the main circuit board is exposed to the end opening of the ear barrel; then, the battery circuit board Connect with the cylindrical battery, and assemble the heat insulation bracket between the cylindrical battery and the output pad of the battery circuit board to form a battery assembly; then, install the battery assembly into the ear barrel; finally, bend the charging pad To fit the output pad, and solder the output pad and the charging pad together.

In the earphone provided by the embodiment of the present application, a heat-insulating bracket is arranged between the cylindrical battery and the output pad of the battery circuit board, and then the output pad and the charging pad protruding out of the end of the ear barrel are welded to avoid welding The high temperature in the process affects the stability of the cylindrical battery. In addition, the heat insulation bracket provides a flat welding operation surface, which is convenient for welding operation and can improve the welding stability of the welding point. Furthermore, the cylindrical battery, the battery circuit board and the heat insulation bracket are assembled into a battery assembly, and the battery assembly is installed in the ear barrel before the output pad and the charging pad are welded. The operation steps are simple and the entire assembly process can be simplified. , Effectively improve assembly efficiency.

Description of the drawings

Figure 1 is a schematic diagram of the structure of a headset provided in the related art;

2 is a schematic diagram of a cross-sectional structure of the earphone provided in the first embodiment of the application during the assembly process;

FIG. 3 is a schematic diagram 1 of the structure of the earphone provided in the first embodiment of the application during the assembly process;

4 is a schematic diagram 2 of the structure of the earphone provided in the first embodiment of the application during the assembly process;

FIG. 5 is the third structural diagram of the earphone provided in the first embodiment of the application during the assembly process; FIG.

6 is a schematic structural diagram of a cylindrical battery provided in Embodiment 1 of the application;

FIG. 7 is a schematic diagram of an exploded structure of the battery assembly provided in Embodiment 1 of the application;

FIG. 8 is a schematic diagram of the overall structure of the battery assembly provided in the first embodiment of the application; FIG.

9 is a schematic diagram 1 of the cross-sectional structure of the headset provided in the second embodiment of the application during the assembly process;

FIG. 10 is a schematic diagram 2 of the cross-sectional structure of the earphone provided in the second embodiment of the application during the assembly process;

FIG. 11 is a schematic structural diagram of a cylindrical battery provided in Embodiment 2 of the application;

12 is a schematic diagram of an exploded structure of the battery assembly provided in the second embodiment of the application;

FIG. 13 is a schematic diagram of the overall structure of the battery assembly provided in the second embodiment of the application.

detailed description

In the related art, the battery of the P-type earphone generally adopts a cylindrical battery, which is arranged in the ear barrel of the earphone. Compared with the button-shaped battery in the ear bag, the battery capacity can be greatly increased, and the thickness of the ear bag of the earphone can be reduced. Improve reliability. The connection between the elongated battery arranged in the ear barrel and the main circuit board can be: welding through a pad or through a connector terminal.

When soldering through pads, the volume is compact after soldering, while soldering through connector terminals will have an impact on the external dimensions, thereby affecting the battery capacity under the same external volume, so pad welding is usually used. When using pad soldering, it is generally necessary to pull the main circuit board out of the ear barrel until the pad is exposed, and then insert the battery and the battery circuit board welded at the positive and negative ends of the battery into the ear barrel, and then connect the battery circuit board and the main The pads of the circuit board are welded together, and finally the welded battery assembly is inserted into the ear barrel.

However, in the above-mentioned related technologies, the heat generated during the welding process will have an adverse effect on the battery, thereby posing a safety hazard. In addition, the entire welding process is complicated, and the battery needs to be inserted into the ear barrel after welding, which may easily cause the solder joints to fall off. In addition, because the main circuit board needs to be pulled out of the ear barrel for a certain length before welding, and the battery and main circuit board are pushed into the ear barrel after the welding is completed, the main circuit board needs to be designed with a redundant length, which will occupy the ear barrel. The internal space. In addition, the welding operation does not have a flat welding operation surface, which results in poor welding reliability.

In order to solve the above problems, the embodiments of the present application provide an earphone, which can realize the assembly and welding of the battery assembly and the main circuit board in the ear barrel in a compact structural space, and use the heat insulation bracket to heat insulation during the welding process. Prevent the heat generated by the welding process from affecting the battery performance and eliminate potential safety hazards.

The earphone provided in the present application will be described below in conjunction with the drawings and specific embodiments.

Example one

FIG. 2 is a schematic cross-sectional structure diagram of the headset provided in Embodiment 1 of the application during the assembly process, FIG. 3 is a schematic structural diagram 1 of the headset provided in Embodiment 1 of the application during the assembly process, and FIG. 4 is a schematic diagram of the headset provided in Embodiment 1 of the application The second structural diagram of the earphone during the assembly process. Figure 5 is the third structural diagram of the earphone provided in the first embodiment of the application during the assembling process. With reference to Figures 2 to 5, the earphone provided by this application includes: an ear tube 100 , The main circuit board 200 and the battery assembly 300.

Wherein, the main circuit board 200 is installed in the ear barrel 100, and the charging pad 21 of the main circuit board 200 extends out of the end opening 11 of the ear barrel 100; the battery assembly 300 includes a cylindrical battery 31, a battery circuit board 32, and Insulation bracket 33, cylindrical battery 31 is installed in ear barrel 100, battery circuit board 32 is provided with output pad 321, output pad 321 is welded to charging pad 21, battery circuit board 32 is connected to cylindrical battery 31 , The heat insulation bracket 33 is provided between the output pad 321 and the cylindrical battery 31.

The earphone provided in this embodiment may be a P-type earphone, including an earphone body used for half-ear earphones and an ear barrel 100 arranged below the earphone body. The ear barrel 100 is generally a hollow cylindrical shape, a main circuit board 200 and a battery The components 300 are all arranged in the ear barrel 100.

The main circuit board 200 may be a flexible circuit board, which is installed in the ear barrel 100, and its end close to the earphone main body is connected to other electronic components arranged in the earphone main body, and its end far away from the earphone main body is provided with a charging pad 21. The charging pad 21 extends out of the end opening 11 for connection with the battery assembly 300.

The battery assembly 300 includes a cylindrical battery 31, a battery circuit board 32, and a heat insulation bracket 33. The cylindrical battery 31 is used to provide power to the earphones, and the battery circuit board 32 is used to connect the cylindrical battery 31 and the main circuit board 200 together. To supply power to the main circuit board 200, the heat insulation bracket 33 is arranged between the cylindrical battery 31 and the output pads 321 of the battery circuit board 32 to ensure that the heat generated during the welding process will not affect the cylindrical battery 31. To the role of safety and heat insulation.

The heat-insulating bracket 33 is usually a poor conductor of heat and prevents heat from being conducted to the cylindrical battery 31. Optionally, the material of the heat-insulating bracket 33 may be LCP (liquid crystal molecular polymer), PPS-GF 40% (polyphenylene sulfide with 40% fiber added) and the like.

The welding method can be laser welding, that is, an efficient and precise welding method that uses a high-energy-density laser beam as a heat source. It belongs to fusion welding and non-contact welding. The beam is focused in a small area and is suitable for small and close-spaced welding. Parts.

The earphone provided in Example 1 of the present application can be prepared by the following method:

First, referring to FIG. 3, the main circuit board 200 is installed in the ear barrel 100 and the charging pad 21 of the main circuit board 200 is exposed to the end opening 11 of the ear barrel 100; then, the battery circuit board 32 Connect with the cylindrical battery 31, and assemble the heat insulation bracket 33 between the cylindrical battery 31 and the output pad 321 of the battery circuit board 32 to form the battery assembly 300; then, referring to FIG. 4, the battery assembly 300 is installed Into the ear barrel 100; finally, referring to FIG. 5, the charging pad 21 is bent to fit the output pad 321, and the output pad 321 and the charging pad 21 are welded together.

The assembly method provided in the first embodiment of the present application first assembles the electronic component 300 outside the ear bar barrel 100, and then solders the electronic component 300 to the main circuit board 200. Compared with the related art, it avoids pulling the main circuit board out of the ear bar. Therefore, the welding operation of the main circuit board 200 and the battery assembly 300 is relatively simple, which can effectively improve the assembly efficiency. In addition, a heat-insulating bracket is arranged between the cylindrical battery 31 and the output pad 321, which not only avoids the high temperature in the welding process from affecting the cylindrical battery 31, but also provides a flat welding surface, which can effectively ensure the safety of welding And reliability.

In the earphone provided in the first embodiment of the present application, the heat insulation bracket 33 is arranged between the cylindrical battery 31 and the output pad 321 of the battery circuit board 32, and then the output pad 321 and the end opening 11 of the ear tube 100 The soldering of the charging pad 21 can prevent the high temperature in the soldering process from affecting the stability of the cylindrical battery 31. In addition, the heat insulation bracket 33 provides a flat welding operation surface, which is convenient for welding operation and can improve the welding stability of the welding point. Furthermore, the cylindrical battery 31, the battery circuit board 32 and the heat insulation bracket 33 are assembled into the battery assembly 300. After the battery assembly 300 is installed in the ear barrel 100, the output pad 321 and the charging pad 21 are welded, and the operation The steps are simple, the entire assembly process can be simplified, and the assembly efficiency can be effectively improved.

In the above embodiment, the output pad 321 usually includes a positive electrode pad connected to the positive electrode of the cylindrical battery 31, and a negative electrode pad connected to the negative electrode of the cylindrical battery 31, both on the positive electrode pad and the negative electrode pad. There are solder joints to the charging pad 21. The positive electrode pad and the negative electrode pad are bumps protruding from the surface of the output pad 321, and the material is a metal that is convenient for soldering, and the shape is not specifically limited, and can be square, round, or irregular.

The output pad 321 is used to connect to the charging pad 21 so that the cylindrical battery 31 can provide power to the main circuit board 200. In actual application, the output pad 321 is provided with a positive electrode pad and a negative electrode pad, respectively, the positive electrode pad and the negative electrode pad are electrically connected to the positive and negative electrodes of the cylindrical battery 31, and the charging pad 21 is also provided with The solder joints corresponding to the positive electrode pad and the negative electrode pad are used to ensure that the circuit is normally conducted after the output pad 321 and the charging pad 21 are welded.

6 is a schematic structural diagram of a cylindrical battery provided in Embodiment 1 of the application. As shown in FIG. 6, the cylindrical battery 31 includes a battery main body 311 and a battery positive electrode 312 and a battery negative electrode 313 respectively disposed at both ends of the battery main body 311. The battery main body 311 is set as a hard shell.

The outer packaging of hard-shell batteries is generally made of metal materials such as steel or aluminum, with high structural strength. When the cylindrical battery 31 is configured as a hard shell battery, the diameter and length of the cylindrical battery 31 match the inner diameter and length of the ear barrel 100.

FIG. 7 is a schematic diagram of the exploded structure of the battery assembly provided in Embodiment 1 of the application, and FIG. 8 is a schematic diagram of the overall structure of the battery assembly provided in Embodiment 1 of the application. Referring to FIG. 7 and FIG. 8, the battery circuit board 32 includes a long strip. The main body 322 and the first connection patch 323 and the second connection patch 324 respectively provided at both ends of the elongated body 322, the first connection patch 323 is attached to and welded to the battery positive electrode 312, and the second connection patch 324 is connected to the battery The negative electrode 313 is attached and welded, and the elongated body 322 is attached to the side wall of the battery body 311; the end of the first connecting patch 323 away from the elongated body 322 is provided with a bending portion 325, the bending portion 325 and the second A connecting patch 323 encloses a U-shaped groove, and the output pad 321 is disposed on the bent portion 325.

At this time, the battery circuit board 32 may be a flexible circuit board. The two ends of the battery circuit board 32 can be bent to form a first connection patch 323 and a second connection patch 324 respectively, so as to be respectively attached to the battery positive electrode 312 and the battery negative electrode 313 to be welded. When assembling, the battery negative electrode 313 can be inserted into the end of the ear barrel 100 away from the end opening 11, the battery positive electrode 312 is located at the end close to the end opening 11, and the elongated body 322 of the battery circuit board 32 is attached to the battery body 322 is set on the side wall.

In order to solder the charging pad 21 and the output pad 321 at the end opening 11, the output pad 321 may be provided on the side of the battery circuit board 32 close to the first connection patch 323. The output pad 321 is disposed on the bending portion 325, the bending portion 324 is located at an end of the first connection patch 323 away from the elongated body 322, and the bending portion 325 and the first connection patch 323 are formed by bending, The enclosure is in a U-shaped groove structure.

Continuing to refer to FIGS. 7 and 8, the heat insulation support 33 includes a heat insulation board 331 located in the U-shaped groove, and the output pads 321 and the first connection patch 323 are respectively located on both sides of the heat insulation board 331.

The heat insulation board 331 is arranged between the output pad 321 and the first connection patch 323 to function as a safe heat insulation and prevent the high temperature of the output pad 321 from affecting the cylindrical battery 31. At the same time, the heat insulation board 331 is clamped in the U-shaped groove enclosed by the bending portion 325 and the first connecting patch 323, and the assembly structure is stable.

In order to further ensure the assembly stability of the heat-insulating bracket 33, the heat-insulating bracket 33 further includes at least two side plates 332 arranged on the edge of the heat-insulating plate 331, and the end of the side plate 332 away from the heat-insulating plate 331 is provided with a clamping portion 333; At least two side plates 332 enclose a accommodating cavity, the battery positive electrode 312 is located in the accommodating cavity, and the clamping portion 333 is engaged with the groove 3121 on the side of the battery positive electrode 312.

Referring to FIG. 6, an annular groove 3121 is formed on the side surface of the positive electrode 312 of the battery. As shown in FIG. 2 and FIG. 7, the heat-insulating bracket 33 further includes a side plate 332. The bottom of the side plate 332 forms a clamping portion 333. When the heat-insulating bracket 33 is assembled between the output pad 321 and the cylindrical battery 31, The heat insulation plate 331 is located above the end of the positive electrode 312 of the battery, the side plate 332 surrounds the side of the positive electrode 312 of the battery, and the clamping portion 333 is clamped in the annular groove 3121.

In the above embodiment, at least two positioning pillars 335 are provided on the heat insulation support 33, the output pad 321 is provided with a first positioning hole 328 matching the positioning pillar 335, and the charging pad 21 is provided with a positioning pillar 335. Matching second positioning hole 211.

When the heat insulation bracket 33 is assembled between the cylindrical battery 31 and the output pad 321 of the battery circuit board 32, the positioning pillar 335 is located in the first positioning hole 328, so that the heat insulation bracket 33 and the output pad 321 can be assembled stably When the charging pad 21 is bent to fit the output pad 321, the positioning pillar 335 is inserted into the second positioning hole 211 to play a role of pre-positioning, which can ensure the welding of the output pad 321 and the charging pad 21 Corresponding to the point position can ensure the precise welding position.

In the above embodiment, a limit step 12 is provided in the ear barrel 100, a bracket hanging table 336 is provided on the heat insulation bracket 33, and the bracket hanging table 336 is clamped on the limit step 12.

The end of the ear tube 100 close to the end opening 11 is provided with a limit step 12, and the position of the limit step 12 is used as a boundary. The inner diameter of the end of the ear tube 100 close to the end opening 11 is larger than the far end of the ear tube 100 The inner diameter of one end of the opening 11. The outer diameter of the end of the heat-insulating bracket 33 away from the cylindrical battery 31 is larger than the outer diameter of the end of the heat-insulating bracket 33 close to the cylindrical battery 31, thereby forming a bracket hanging platform 336. When the battery assembly 300 is inserted into the ear barrel 100, the battery assembly 300 is inserted into the ear barrel 100 until the bracket hanger 336 and the limit step 12 abut, so as to control the depth of the battery assembly 300 into the ear barrel 100 .

First, install the main circuit board 200 in the ear barrel 100 and expose the charging pad 21 of the main circuit board 200 to the end opening 11 of the ear barrel 100; then, the elongated body 322 of the battery circuit board 32 Are attached to the side wall of the cylindrical battery 31, and the first connection patch 323 and the second connection patch 324 are respectively attached and welded on the battery positive electrode 312 and the battery negative electrode 313; and then the heat insulation plate 331 is assembled on the first Between the connection patch 323 and the output pad 321, the positioning post 335 on the heat insulation board 331 extends into the first positioning hole 328 on the bending portion 325, so that the clamping portion 33 of the side plate 3332 is clamped to the battery The positive electrode 312 is in the groove 3121 to form the battery assembly 300; then, the battery assembly 300 is inserted into the ear tube 100 until the bracket 336 of the heat insulation bracket 33 and the limit step 12 in the ear tube 100 abut ; Finally, the charging pad 21 is bent to fit the output pad 321, so that the positioning column 335 on the heat insulation board 331 extends into the second positioning hole 211 on the charging pad 21, and then the output pad 321 Weld together with the welding points on the charging pad 21 correspondingly.

In the earphone provided in the first embodiment of the application, a heat-insulating bracket is arranged between the cylindrical battery and the output pad of the battery circuit board, and then the output pad and the charging pad protruding from the end of the ear barrel are welded, which can avoid The high temperature in the welding process affects the stability of the cylindrical battery. In addition, the heat insulation bracket provides a flat welding operation surface, which is convenient for welding operation and can improve the welding stability of the welding point. Furthermore, the cylindrical battery, the battery circuit board and the heat insulation bracket are assembled into a battery assembly, and the battery assembly is installed in the ear barrel before connecting the output pad and the charging pad. The operation steps are simple and the entire assembly process can be simplified. , Effectively improve assembly efficiency. Further, the cylindrical battery is a hard-shell battery, and the battery circuit board is a flexible circuit board, which is welded to the positive and negative electrodes of the cylindrical battery through the patches at both ends, and the heat insulation bracket is clamped on the end of the positive electrode of the battery to separate The output pad and the cylindrical battery, and the structure of the heat-insulating bracket matches the structure of the end of the cylindrical battery, but does not occupy much space in the ear barrel.

Example two

9 is a schematic diagram of a cross-sectional structure of the headset provided in the second embodiment of the application during the assembly process, and FIG. 10 is a schematic diagram of the second cross-sectional structure of the headset provided in the second embodiment of the application during the assembly process, refer to FIG. 9, FIG. 10 and FIG. As shown in 3-5, the earphone provided in the second embodiment of the present application includes: an ear barrel 100, a main circuit board 200, and a battery assembly 300.

The heat insulation bracket 33 is generally a poor conductor of heat to prevent heat from being conducted to the cylindrical battery 31. Optionally, the material of the heat-insulating bracket 33 may be LCP (liquid crystal molecular polymer), PPS-GF 40% (polyphenylene sulfide with 40% fiber added) and the like.

In the above embodiment, the output pad 321 usually includes a positive electrode pad connected to the positive electrode of the cylindrical battery 31, and a negative electrode pad connected to the negative electrode of the cylindrical battery 31, both on the positive electrode pad and the negative electrode pad. There are solder joints to the charging pad 21.

FIG. 11 is a schematic structural diagram of a cylindrical battery provided in Embodiment 2 of the application. Referring to FIG. 11, in this embodiment, the cylindrical battery 31 includes a battery main body 311 and a battery positive electrode 312 and a battery respectively disposed at both ends of the battery main body 311 The negative electrode 313 and the battery body 311 are soft-packed batteries.

The biggest difference between the internal composition of the soft-pack battery and the hard-shell battery is that the soft-pack battery uses an aluminum-plastic composite film as the outer shell, and the hard-shell battery uses a metal material as the outer shell. Compared with hard-shell batteries, soft-pack batteries have the advantages of good safety, light weight, high energy density, and good electrochemical performance.

FIG. 12 is a schematic diagram of the exploded structure of the battery assembly provided in the second embodiment of the application, and FIG. 13 is a schematic diagram of the overall structure of the battery assembly provided in the second embodiment of the application. Referring to FIG. 12 and FIG. 13, the battery circuit board 32 includes a plate shape. The main body 326 and the first connection patch 323 and the second connection patch 324 arranged perpendicular to the plate-shaped main body 326. The first connection patch 323 is welded to the battery positive electrode 312, and the second connection patch 324 is connected to the first of the nickel belt 327. The second end of the nickel strip 327 is welded to the battery negative electrode 313; the output pad 321 is arranged on the plate-shaped main body 326.

At this time, the battery circuit board 32 may be a flexible circuit board or a printed circuit board. When the battery circuit board 32 is a flexible circuit board, the bending of the flexible circuit board forms a first connection patch 323 and a second connection patch 324. When the battery circuit board 32 is a printed circuit board, the first connection patch 323 and The second connection patch 324 may be an elongated pin patch structure. The first connection patch 323 and the battery positive electrode 312 are bonded and welded, and the second connection patch 324 is connected to the battery negative electrode 313 through a nickel band 327.

When assembling, the battery negative electrode 313 can be inserted into the end of the ear barrel 100 away from the end opening 11, the battery positive electrode 312 can be located at the end close to the end opening 11, the plate-shaped body 326 is arranged at the end of the battery positive electrode 312, and the nickel belt The second end of 327 is welded to the negative electrode 313 of the battery. The nickel strip 327 is attached to the side wall of the battery body 311. The nickel strip 327 extends along the length of the battery body 311. The first end of the nickel strip 327 is attached and welded to the positive electrode of the battery. 312.

In order to solder the charging pad 21 and the output pad 321 at the end opening 11, the output pad 321 is provided on the plate-shaped body 326 of the battery circuit board 32, and the first connection patch 323 and the second connection patch 324 are provided On the outside of the positive electrode 312 of the battery.

Continuing to refer to Figures 12 and 13, the thermal insulation support 33 includes a thermal insulation plate 331, and two support plates 334 connected to the edge of the thermal insulation plate 331 and arranged opposite to each other; the battery positive electrode 312 is located on the thermal insulation plate 331 and the two supports The first connecting patch 323 is attached to the outer side of one of the supporting plates 334, and the second connecting patch 324 is attached to the outer side of the other supporting board 334.

The heat insulation plate 331 is arranged between the output pad 321 and the battery positive electrode 312, and can play a role of safe heat insulation and prevent the high temperature of the output pad 321 from affecting the cylindrical battery 31 when the output pad 321 is welded.

In order to ensure the assembly stability of the heat-insulating bracket 33, the heat-insulating bracket 33 also includes a supporting plate 334 arranged on the edge of the heat-insulating plate 331, and the first connecting patch 323 and the second connecting patch 324 are attached to the supporting plate 334 respectively. On the outer side, the support plate 334 can support the first connection patch 323 and the second connection patch 324.

When the heat insulation bracket 33 is assembled between the cylindrical battery 31 and the output pad 321 of the battery circuit board 32, the positioning pillar 335 is located in the first positioning hole 328, so that the heat insulation bracket 33 and the output pad 321 are assembled stably. When the charging pad 21 is bent to fit the output pad 321, the positioning pillar 335 is inserted into the second positioning hole 211 to play a role of pre-positioning, which can ensure the solder joints on the output pad 321 and the charging pad 21 Corresponding position can ensure the precise welding position.

The earphone provided in the second embodiment of the application can be prepared by the following method:

First, the main circuit board 200 is installed in the ear barrel 100 and the charging pad 21 of the main circuit board 200 is exposed to the end opening 11 of the ear barrel 100; then, the heat insulation bracket 33 is assembled on the cylindrical battery 31 At the end of the battery positive electrode 312, the battery circuit board 32 is set above the heat insulation bracket 33, so that the positioning post 335 on the heat insulation plate 331 extends into the first positioning hole 328 on the plate-shaped body 326, and the first connection The patch 323 and the second connection patch 324 are respectively attached to the outside of the support plate 334 of the heat insulation bracket 33; the first connection patch 323 is welded to the battery positive electrode 312, and the second connection patch 324 is connected to the nickel tape 327 The first end is welded, and the second end of the nickel tape 327 is welded to the battery negative electrode 313 to form the battery assembly 300; then, the battery assembly 300 is inserted into the ear barrel 100 until the bracket hanger 336 of the heat insulation bracket 33 and the ear The limit step 12 in the rod barrel 100 abuts; finally, the charging pad 21 is bent to fit with the output pad 321, so that the positioning post 335 on the heat insulation board 331 extends into the second on the charging pad 21 In the positioning hole 211, the output pad 321 and the welding point on the charging pad 21 are welded together correspondingly.

In the earphone provided in the second embodiment of the present application, a heat-insulating bracket is arranged between the cylindrical battery and the output pad of the battery circuit board, and then the output pad and the charging pad protruding from the end of the ear barrel are welded to avoid The high temperature in the welding process affects the stability of the cylindrical battery. In addition, the heat insulation bracket provides a flat welding operation surface, which is convenient for welding operation and can improve the welding stability of the welding point. Furthermore, the cylindrical battery, the battery circuit board and the heat insulation bracket are assembled into a battery assembly, and the battery assembly is installed in the ear barrel before connecting the output pad and the charging pad. The operation steps are simple and the entire assembly process can be simplified. , Effectively improve assembly efficiency. Further, the cylindrical battery is a soft pack battery, and the battery circuit board is arranged at the end of the positive electrode of the battery, and the positive and negative electrodes of the cylindrical battery are connected by connecting the patch and the nickel tape. The heat insulation bracket is used to separate the output pad and The cylindrical battery is also used to provide support for the connection patch of the battery circuit board, and the structure of the heat insulation bracket matches the structure of the end of the cylindrical battery, but it does not occupy much space in the ear barrel.

Claims

An earphone, which is characterized by comprising: an ear barrel, a main circuit board and a battery assembly;

The main circuit board is installed in the ear barrel, and the charging pad of the main circuit board protrudes from the end opening of the ear barrel;

The battery assembly includes a cylindrical battery, a battery circuit board and a heat-insulating bracket, the cylindrical battery is installed in the ear barrel, and an output pad is provided on the battery circuit board, and the output pad is connected to the The charging pad is soldered, the battery circuit board is connected to the cylindrical battery, and the heat insulation bracket is arranged between the output pad and the cylindrical battery.
The earphone according to claim 1, wherein the output pad comprises a positive electrode pad connected to the positive electrode of the cylindrical battery, and a negative electrode pad connected to the negative electrode of the cylindrical battery, the Both the positive electrode pad and the negative electrode pad are provided with solder joints for welding with the charging pad.
The earphone according to claim 1, wherein the cylindrical battery comprises a battery main body and a battery positive electrode and a battery negative electrode respectively arranged at two ends of the battery main body, and the battery main body is arranged as a hard shell.
The earphone according to claim 3, wherein the battery circuit board comprises an elongated body and a first connecting patch and a second connecting patch respectively provided at both ends of the elongated body, the first A connection patch is pasted and welded to the positive electrode of the battery, the second connection patch is pasted and welded to the negative electrode of the battery, and the elongated body is pasted on the side wall of the battery body;

An end of the first connecting patch away from the elongated main body is provided with a bending portion, the bending portion and the first connecting patch enclose a U-shaped groove, and the output pad is arranged in the Mentioned on the bent part.
The earphone according to claim 4, wherein the heat insulation bracket comprises a heat insulation board located in the U-shaped groove, and the output pad and the first connection patch are respectively located in the heat insulation board. Both sides of the board.
The earphone according to claim 5, wherein the heat insulation bracket further comprises at least two side plates arranged on the edge of the heat insulation board, and an end of the side plate away from the heat insulation board is provided with a card Connection

The at least two side plates enclose an accommodating cavity, the battery anode is located in the accommodating cavity, and the clamping portion is engaged with a groove on the side of the battery anode.
The earphone according to claim 1, wherein the cylindrical battery comprises a battery main body and a battery positive electrode and a battery negative electrode respectively arranged at two ends of the battery main body, and the battery main body is a soft-packed battery cell.
The earphone according to claim 7, wherein the battery circuit board comprises a plate-shaped main body, and a first connection patch and a second connection patch arranged perpendicular to the plate-shaped main body, the first connection patch The sheet is welded to the positive electrode of the battery, the second connecting patch is welded to the first end of the nickel tape, and the second end of the nickel tape is welded to the negative electrode of the battery;

The output pad is provided on the plate-shaped body.
The earphone according to claim 8, wherein the heat-insulating bracket comprises a heat-insulating plate, and two supporting plates connected to and opposite to the edge of the heat-insulating plate;

The positive electrode of the battery is located in the accommodating groove formed by the heat insulation plate and two supporting plates; the first connecting patch is attached to the outer side of one of the supporting plates, and the second connecting patch is attached Fit on the outer side of the other supporting plate.
The earphone according to any one of claims 1-9, wherein at least two positioning posts are provided on the heat insulation bracket, and a first positioning post matching the positioning posts is provided on the output pad. Hole, the charging pad is provided with a second positioning hole matching the positioning pillar.
The earphone according to any one of claims 1-9, wherein a limited step is provided in the ear barrel, a bracket hanging table is provided on the heat insulation bracket, and the bracket hanging table is clamped in the The limit steps are described.
The earphone according to any one of claims 1-9, wherein the main circuit board is a flexible circuit board, and the battery circuit board is a flexible circuit board or a printed circuit board.